diff options
Diffstat (limited to 'src/grp-login/liblogind-core')
27 files changed, 0 insertions, 11306 deletions
diff --git a/src/grp-login/liblogind-core/Makefile b/src/grp-login/liblogind-core/Makefile deleted file mode 100644 index 1575518aec..0000000000 --- a/src/grp-login/liblogind-core/Makefile +++ /dev/null @@ -1,62 +0,0 @@ -# -*- Mode: makefile; indent-tabs-mode: t -*- -# -# This file is part of systemd. -# -# Copyright 2010-2012 Lennart Poettering -# Copyright 2010-2012 Kay Sievers -# Copyright 2013 Zbigniew Jędrzejewski-Szmek -# Copyright 2013 David Strauss -# Copyright 2016 Luke Shumaker -# -# systemd is free software; you can redistribute it and/or modify it -# under the terms of the GNU Lesser General Public License as published by -# the Free Software Foundation; either version 2.1 of the License, or -# (at your option) any later version. -# -# systemd is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# Lesser General Public License for more details. -# -# You should have received a copy of the GNU Lesser General Public License -# along with systemd; If not, see <http://www.gnu.org/licenses/>. -include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk -include $(topsrcdir)/build-aux/Makefile.head.mk - -liblogind_core_la_SOURCES = \ - src/login/logind-core.c \ - src/login/logind-device.c \ - src/login/logind-device.h \ - src/login/logind-button.c \ - src/login/logind-button.h \ - src/login/logind-action.c \ - src/login/logind-action.h \ - src/login/logind-seat.c \ - src/login/logind-seat.h \ - src/login/logind-session.c \ - src/login/logind-session.h \ - src/login/logind-session-device.c \ - src/login/logind-session-device.h \ - src/login/logind-user.c \ - src/login/logind-user.h \ - src/login/logind-inhibit.c \ - src/login/logind-inhibit.h \ - src/login/logind-dbus.c \ - src/login/logind-session-dbus.c \ - src/login/logind-seat-dbus.c \ - src/login/logind-user-dbus.c \ - src/login/logind-utmp.c \ - src/login/logind-acl.h - -liblogind_core_la_LIBADD = \ - libshared.la - -ifneq ($(HAVE_ACL),) -liblogind_core_la_SOURCES += \ - src/login/logind-acl.c -endif # HAVE_ACL - -noinst_LTLIBRARIES += \ - liblogind-core.la - -include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-login/liblogind-core/logind-acl.c b/src/grp-login/liblogind-core/logind-acl.c deleted file mode 100644 index 44e49c1dad..0000000000 --- a/src/grp-login/liblogind-core/logind-acl.c +++ /dev/null @@ -1,293 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> - -#include "basic/alloc-util.h" -#include "basic/dirent-util.h" -#include "basic/escape.h" -#include "basic/fd-util.h" -#include "basic/formats-util.h" -#include "basic/set.h" -#include "basic/string-util.h" -#include "basic/util.h" -#include "shared/acl-util.h" -#include "shared/udev-util.h" - -#include "logind-acl.h" - -static int flush_acl(acl_t acl) { - acl_entry_t i; - int found; - bool changed = false; - - assert(acl); - - for (found = acl_get_entry(acl, ACL_FIRST_ENTRY, &i); - found > 0; - found = acl_get_entry(acl, ACL_NEXT_ENTRY, &i)) { - - acl_tag_t tag; - - if (acl_get_tag_type(i, &tag) < 0) - return -errno; - - if (tag != ACL_USER) - continue; - - if (acl_delete_entry(acl, i) < 0) - return -errno; - - changed = true; - } - - if (found < 0) - return -errno; - - return changed; -} - -int devnode_acl(const char *path, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - - acl_t acl; - int r = 0; - bool changed = false; - - assert(path); - - acl = acl_get_file(path, ACL_TYPE_ACCESS); - if (!acl) - return -errno; - - if (flush) { - - r = flush_acl(acl); - if (r < 0) - goto finish; - if (r > 0) - changed = true; - - } else if (del && old_uid > 0) { - acl_entry_t entry; - - r = acl_find_uid(acl, old_uid, &entry); - if (r < 0) - goto finish; - - if (r > 0) { - if (acl_delete_entry(acl, entry) < 0) { - r = -errno; - goto finish; - } - - changed = true; - } - } - - if (add && new_uid > 0) { - acl_entry_t entry; - acl_permset_t permset; - int rd, wt; - - r = acl_find_uid(acl, new_uid, &entry); - if (r < 0) - goto finish; - - if (r == 0) { - if (acl_create_entry(&acl, &entry) < 0) { - r = -errno; - goto finish; - } - - if (acl_set_tag_type(entry, ACL_USER) < 0 || - acl_set_qualifier(entry, &new_uid) < 0) { - r = -errno; - goto finish; - } - } - - if (acl_get_permset(entry, &permset) < 0) { - r = -errno; - goto finish; - } - - rd = acl_get_perm(permset, ACL_READ); - if (rd < 0) { - r = -errno; - goto finish; - } - - wt = acl_get_perm(permset, ACL_WRITE); - if (wt < 0) { - r = -errno; - goto finish; - } - - if (!rd || !wt) { - - if (acl_add_perm(permset, ACL_READ|ACL_WRITE) < 0) { - r = -errno; - goto finish; - } - - changed = true; - } - } - - if (!changed) - goto finish; - - if (acl_calc_mask(&acl) < 0) { - r = -errno; - goto finish; - } - - if (acl_set_file(path, ACL_TYPE_ACCESS, acl) < 0) { - r = -errno; - goto finish; - } - - r = 0; - -finish: - acl_free(acl); - - return r; -} - -int devnode_acl_all(struct udev *udev, - const char *seat, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - - _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; - struct udev_list_entry *item = NULL, *first = NULL; - _cleanup_set_free_free_ Set *nodes = NULL; - _cleanup_closedir_ DIR *dir = NULL; - struct dirent *dent; - Iterator i; - char *n; - int r; - - assert(udev); - - nodes = set_new(&string_hash_ops); - if (!nodes) - return -ENOMEM; - - e = udev_enumerate_new(udev); - if (!e) - return -ENOMEM; - - if (isempty(seat)) - seat = "seat0"; - - /* We can only match by one tag in libudev. We choose - * "uaccess" for that. If we could match for two tags here we - * could add the seat name as second match tag, but this would - * be hardly optimizable in libudev, and hence checking the - * second tag manually in our loop is a good solution. */ - r = udev_enumerate_add_match_tag(e, "uaccess"); - if (r < 0) - return r; - - r = udev_enumerate_add_match_is_initialized(e); - if (r < 0) - return r; - - r = udev_enumerate_scan_devices(e); - if (r < 0) - return r; - - first = udev_enumerate_get_list_entry(e); - udev_list_entry_foreach(item, first) { - _cleanup_udev_device_unref_ struct udev_device *d = NULL; - const char *node, *sn; - - d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)); - if (!d) - return -ENOMEM; - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - if (!streq(seat, sn)) - continue; - - node = udev_device_get_devnode(d); - /* In case people mistag devices with nodes, we need to ignore this */ - if (!node) - continue; - - n = strdup(node); - if (!n) - return -ENOMEM; - - log_debug("Found udev node %s for seat %s", n, seat); - r = set_consume(nodes, n); - if (r < 0) - return r; - } - - /* udev exports "dead" device nodes to allow module on-demand loading, - * these devices are not known to the kernel at this moment */ - dir = opendir("/run/udev/static_node-tags/uaccess"); - if (dir) { - FOREACH_DIRENT(dent, dir, return -errno) { - _cleanup_free_ char *unescaped_devname = NULL; - - if (cunescape(dent->d_name, UNESCAPE_RELAX, &unescaped_devname) < 0) - return -ENOMEM; - - n = strappend("/dev/", unescaped_devname); - if (!n) - return -ENOMEM; - - log_debug("Found static node %s for seat %s", n, seat); - r = set_consume(nodes, n); - if (r == -EEXIST) - continue; - if (r < 0) - return r; - } - } - - r = 0; - SET_FOREACH(n, nodes, i) { - int k; - - log_debug("Changing ACLs at %s for seat %s (uid "UID_FMT"→"UID_FMT"%s%s)", - n, seat, old_uid, new_uid, - del ? " del" : "", add ? " add" : ""); - - k = devnode_acl(n, flush, del, old_uid, add, new_uid); - if (k == -ENOENT) - log_debug("Device %s disappeared while setting ACLs", n); - else if (k < 0 && r == 0) - r = k; - } - - return r; -} diff --git a/src/grp-login/liblogind-core/logind-acl.h b/src/grp-login/liblogind-core/logind-acl.h deleted file mode 100644 index 7d324ea90a..0000000000 --- a/src/grp-login/liblogind-core/logind-acl.h +++ /dev/null @@ -1,56 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> -#include <sys/types.h> - -#include <libudev.h> - -#ifdef HAVE_ACL - -int devnode_acl(const char *path, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid); - -int devnode_acl_all(struct udev *udev, - const char *seat, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid); -#else - -static inline int devnode_acl(const char *path, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - return 0; -} - -static inline int devnode_acl_all(struct udev *udev, - const char *seat, - bool flush, - bool del, uid_t old_uid, - bool add, uid_t new_uid) { - return 0; -} - -#endif diff --git a/src/grp-login/liblogind-core/logind-action.c b/src/grp-login/liblogind-core/logind-action.c deleted file mode 100644 index 0cfeab3fdb..0000000000 --- a/src/grp-login/liblogind-core/logind-action.c +++ /dev/null @@ -1,179 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <unistd.h> - -#include "basic/alloc-util.h" -#include "basic/formats-util.h" -#include "basic/process-util.h" -#include "basic/special.h" -#include "basic/string-table.h" -#include "basic/terminal-util.h" -#include "basic/user-util.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" -#include "shared/conf-parser.h" -#include "shared/sleep-config.h" - -#include "logind-action.h" - -int manager_handle_action( - Manager *m, - InhibitWhat inhibit_key, - HandleAction handle, - bool ignore_inhibited, - bool is_edge) { - - static const char * const message_table[_HANDLE_ACTION_MAX] = { - [HANDLE_POWEROFF] = "Powering Off...", - [HANDLE_REBOOT] = "Rebooting...", - [HANDLE_HALT] = "Halting...", - [HANDLE_KEXEC] = "Rebooting via kexec...", - [HANDLE_SUSPEND] = "Suspending...", - [HANDLE_HIBERNATE] = "Hibernating...", - [HANDLE_HYBRID_SLEEP] = "Hibernating and suspending..." - }; - - static const char * const target_table[_HANDLE_ACTION_MAX] = { - [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET, - [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET, - [HANDLE_HALT] = SPECIAL_HALT_TARGET, - [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET, - [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET, - [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET, - [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET - }; - - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - InhibitWhat inhibit_operation; - Inhibitor *offending = NULL; - bool supported; - int r; - - assert(m); - - /* If the key handling is turned off, don't do anything */ - if (handle == HANDLE_IGNORE) { - log_debug("Refusing operation, as it is turned off."); - return 0; - } - - if (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) { - /* If the last system suspend or startup is too close, - * let's not suspend for now, to give USB docking - * stations some time to settle so that we can - * properly watch its displays. */ - if (m->lid_switch_ignore_event_source) { - log_debug("Ignoring lid switch request, system startup or resume too close."); - return 0; - } - } - - /* If the key handling is inhibited, don't do anything */ - if (inhibit_key > 0) { - if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) { - log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key)); - return 0; - } - } - - /* Locking is handled differently from the rest. */ - if (handle == HANDLE_LOCK) { - - if (!is_edge) - return 0; - - log_info("Locking sessions..."); - session_send_lock_all(m, true); - return 1; - } - - if (handle == HANDLE_SUSPEND) - supported = can_sleep("suspend") > 0; - else if (handle == HANDLE_HIBERNATE) - supported = can_sleep("hibernate") > 0; - else if (handle == HANDLE_HYBRID_SLEEP) - supported = can_sleep("hybrid-sleep") > 0; - else if (handle == HANDLE_KEXEC) - supported = access(KEXEC, X_OK) >= 0; - else - supported = true; - - if (!supported) { - log_warning("Requested operation not supported, ignoring."); - return -EOPNOTSUPP; - } - - if (m->action_what) { - log_debug("Action already in progress, ignoring."); - return -EALREADY; - } - - inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN; - - /* If the actual operation is inhibited, warn and fail */ - if (!ignore_inhibited && - manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) { - _cleanup_free_ char *comm = NULL, *u = NULL; - - get_process_comm(offending->pid, &comm); - u = uid_to_name(offending->uid); - - /* If this is just a recheck of the lid switch then don't warn about anything */ - if (!is_edge) { - log_debug("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.", - inhibit_what_to_string(inhibit_operation), - offending->uid, strna(u), - offending->pid, strna(comm)); - return 0; - } - - log_error("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.", - inhibit_what_to_string(inhibit_operation), - offending->uid, strna(u), - offending->pid, strna(comm)); - - return -EPERM; - } - - log_info("%s", message_table[handle]); - - r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error); - if (r < 0) { - log_error("Failed to execute operation: %s", bus_error_message(&error, r)); - return r; - } - - return 1; -} - -static const char* const handle_action_table[_HANDLE_ACTION_MAX] = { - [HANDLE_IGNORE] = "ignore", - [HANDLE_POWEROFF] = "poweroff", - [HANDLE_REBOOT] = "reboot", - [HANDLE_HALT] = "halt", - [HANDLE_KEXEC] = "kexec", - [HANDLE_SUSPEND] = "suspend", - [HANDLE_HIBERNATE] = "hibernate", - [HANDLE_HYBRID_SLEEP] = "hybrid-sleep", - [HANDLE_LOCK] = "lock" -}; - -DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction); -DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting"); diff --git a/src/grp-login/liblogind-core/logind-action.h b/src/grp-login/liblogind-core/logind-action.h deleted file mode 100644 index 39ba3cf0f6..0000000000 --- a/src/grp-login/liblogind-core/logind-action.h +++ /dev/null @@ -1,50 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -typedef enum HandleAction { - HANDLE_IGNORE, - HANDLE_POWEROFF, - HANDLE_REBOOT, - HANDLE_HALT, - HANDLE_KEXEC, - HANDLE_SUSPEND, - HANDLE_HIBERNATE, - HANDLE_HYBRID_SLEEP, - HANDLE_LOCK, - _HANDLE_ACTION_MAX, - _HANDLE_ACTION_INVALID = -1 -} HandleAction; - -#include "logind.h" - -#include "logind-inhibit.h" - -int manager_handle_action( - Manager *m, - InhibitWhat inhibit_key, - HandleAction handle, - bool ignore_inhibited, - bool is_edge); - -const char* handle_action_to_string(HandleAction h) _const_; -HandleAction handle_action_from_string(const char *s) _pure_; - -int config_parse_handle_action(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); diff --git a/src/grp-login/liblogind-core/logind-button.c b/src/grp-login/liblogind-core/logind-button.c deleted file mode 100644 index 81c82117fc..0000000000 --- a/src/grp-login/liblogind-core/logind-button.c +++ /dev/null @@ -1,290 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <string.h> -#include <sys/ioctl.h> -#include <unistd.h> - -#include <linux/input.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/fd-util.h" -#include "basic/string-util.h" -#include "basic/util.h" - -#include "logind-button.h" - -Button* button_new(Manager *m, const char *name) { - Button *b; - - assert(m); - assert(name); - - b = new0(Button, 1); - if (!b) - return NULL; - - b->name = strdup(name); - if (!b->name) { - free(b); - return NULL; - } - - if (hashmap_put(m->buttons, b->name, b) < 0) { - free(b->name); - free(b); - return NULL; - } - - b->manager = m; - b->fd = -1; - - return b; -} - -void button_free(Button *b) { - assert(b); - - hashmap_remove(b->manager->buttons, b->name); - - sd_event_source_unref(b->io_event_source); - sd_event_source_unref(b->check_event_source); - - if (b->fd >= 0) - /* If the device has been unplugged close() returns - * ENODEV, let's ignore this, hence we don't use - * safe_close() */ - (void) close(b->fd); - - free(b->name); - free(b->seat); - free(b); -} - -int button_set_seat(Button *b, const char *sn) { - char *s; - - assert(b); - assert(sn); - - s = strdup(sn); - if (!s) - return -ENOMEM; - - free(b->seat); - b->seat = s; - - return 0; -} - -static void button_lid_switch_handle_action(Manager *manager, bool is_edge) { - HandleAction handle_action; - - assert(manager); - - /* If we are docked, handle the lid switch differently */ - if (manager_is_docked_or_external_displays(manager)) - handle_action = manager->handle_lid_switch_docked; - else - handle_action = manager->handle_lid_switch; - - manager_handle_action(manager, INHIBIT_HANDLE_LID_SWITCH, handle_action, manager->lid_switch_ignore_inhibited, is_edge); -} - -static int button_recheck(sd_event_source *e, void *userdata) { - Button *b = userdata; - - assert(b); - assert(b->lid_closed); - - button_lid_switch_handle_action(b->manager, false); - return 1; -} - -static int button_install_check_event_source(Button *b) { - int r; - assert(b); - - /* Install a post handler, so that we keep rechecking as long as the lid is closed. */ - - if (b->check_event_source) - return 0; - - r = sd_event_add_post(b->manager->event, &b->check_event_source, button_recheck, b); - if (r < 0) - return r; - - return sd_event_source_set_priority(b->check_event_source, SD_EVENT_PRIORITY_IDLE+1); -} - -static int button_dispatch(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - Button *b = userdata; - struct input_event ev; - ssize_t l; - - assert(s); - assert(fd == b->fd); - assert(b); - - l = read(b->fd, &ev, sizeof(ev)); - if (l < 0) - return errno != EAGAIN ? -errno : 0; - if ((size_t) l < sizeof(ev)) - return -EIO; - - if (ev.type == EV_KEY && ev.value > 0) { - - switch (ev.code) { - - case KEY_POWER: - case KEY_POWER2: - log_struct(LOG_INFO, - LOG_MESSAGE("Power key pressed."), - LOG_MESSAGE_ID(SD_MESSAGE_POWER_KEY), - NULL); - - manager_handle_action(b->manager, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true); - break; - - /* The kernel is a bit confused here: - - KEY_SLEEP = suspend-to-ram, which everybody else calls "suspend" - KEY_SUSPEND = suspend-to-disk, which everybody else calls "hibernate" - */ - - case KEY_SLEEP: - log_struct(LOG_INFO, - LOG_MESSAGE("Suspend key pressed."), - LOG_MESSAGE_ID(SD_MESSAGE_SUSPEND_KEY), - NULL); - - manager_handle_action(b->manager, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true); - break; - - case KEY_SUSPEND: - log_struct(LOG_INFO, - LOG_MESSAGE("Hibernate key pressed."), - LOG_MESSAGE_ID(SD_MESSAGE_HIBERNATE_KEY), - NULL); - - manager_handle_action(b->manager, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true); - break; - } - - } else if (ev.type == EV_SW && ev.value > 0) { - - if (ev.code == SW_LID) { - log_struct(LOG_INFO, - LOG_MESSAGE("Lid closed."), - LOG_MESSAGE_ID(SD_MESSAGE_LID_CLOSED), - NULL); - - b->lid_closed = true; - button_lid_switch_handle_action(b->manager, true); - button_install_check_event_source(b); - - } else if (ev.code == SW_DOCK) { - log_struct(LOG_INFO, - LOG_MESSAGE("System docked."), - LOG_MESSAGE_ID(SD_MESSAGE_SYSTEM_DOCKED), - NULL); - - b->docked = true; - } - - } else if (ev.type == EV_SW && ev.value == 0) { - - if (ev.code == SW_LID) { - log_struct(LOG_INFO, - LOG_MESSAGE("Lid opened."), - LOG_MESSAGE_ID(SD_MESSAGE_LID_OPENED), - NULL); - - b->lid_closed = false; - b->check_event_source = sd_event_source_unref(b->check_event_source); - - } else if (ev.code == SW_DOCK) { - log_struct(LOG_INFO, - LOG_MESSAGE("System undocked."), - LOG_MESSAGE_ID(SD_MESSAGE_SYSTEM_UNDOCKED), - NULL); - - b->docked = false; - } - } - - return 0; -} - -int button_open(Button *b) { - char *p, name[256]; - int r; - - assert(b); - - b->fd = safe_close(b->fd); - - p = strjoina("/dev/input/", b->name); - - b->fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); - if (b->fd < 0) - return log_warning_errno(errno, "Failed to open %s: %m", b->name); - - if (ioctl(b->fd, EVIOCGNAME(sizeof(name)), name) < 0) { - r = log_error_errno(errno, "Failed to get input name: %m"); - goto fail; - } - - r = sd_event_add_io(b->manager->event, &b->io_event_source, b->fd, EPOLLIN, button_dispatch, b); - if (r < 0) { - log_error_errno(r, "Failed to add button event: %m"); - goto fail; - } - - log_info("Watching system buttons on /dev/input/%s (%s)", b->name, name); - - return 0; - -fail: - b->fd = safe_close(b->fd); - return r; -} - -int button_check_switches(Button *b) { - uint8_t switches[SW_MAX/8+1] = {}; - assert(b); - - if (b->fd < 0) - return -EINVAL; - - if (ioctl(b->fd, EVIOCGSW(sizeof(switches)), switches) < 0) - return -errno; - - b->lid_closed = (switches[SW_LID/8] >> (SW_LID % 8)) & 1; - b->docked = (switches[SW_DOCK/8] >> (SW_DOCK % 8)) & 1; - - if (b->lid_closed) - button_install_check_event_source(b); - - return 0; -} diff --git a/src/grp-login/liblogind-core/logind-button.h b/src/grp-login/liblogind-core/logind-button.h deleted file mode 100644 index f30cba2959..0000000000 --- a/src/grp-login/liblogind-core/logind-button.h +++ /dev/null @@ -1,44 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -typedef struct Button Button; - -#include "logind.h" - -struct Button { - Manager *manager; - - sd_event_source *io_event_source; - sd_event_source *check_event_source; - - char *name; - char *seat; - int fd; - - bool lid_closed; - bool docked; -}; - -Button* button_new(Manager *m, const char *name); -void button_free(Button*b); -int button_open(Button *b); -int button_set_seat(Button *b, const char *sn); -int button_check_switches(Button *b); diff --git a/src/grp-login/liblogind-core/logind-core.c b/src/grp-login/liblogind-core/logind-core.c deleted file mode 100644 index 1d6475f8d7..0000000000 --- a/src/grp-login/liblogind-core/logind-core.c +++ /dev/null @@ -1,559 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> -#include <pwd.h> -#include <sys/ioctl.h> -#include <sys/types.h> - -#include <linux/vt.h> - -#include "basic/alloc-util.h" -#include "basic/cgroup-util.h" -#include "basic/fd-util.h" -#include "basic/strv.h" -#include "basic/terminal-util.h" -#include "basic/user-util.h" -#include "logind.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" -#include "shared/udev-util.h" - -int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device) { - Device *d; - - assert(m); - assert(sysfs); - - d = hashmap_get(m->devices, sysfs); - if (d) - /* we support adding master-flags, but not removing them */ - d->master = d->master || master; - else { - d = device_new(m, sysfs, master); - if (!d) - return -ENOMEM; - } - - if (_device) - *_device = d; - - return 0; -} - -int manager_add_seat(Manager *m, const char *id, Seat **_seat) { - Seat *s; - - assert(m); - assert(id); - - s = hashmap_get(m->seats, id); - if (!s) { - s = seat_new(m, id); - if (!s) - return -ENOMEM; - } - - if (_seat) - *_seat = s; - - return 0; -} - -int manager_add_session(Manager *m, const char *id, Session **_session) { - Session *s; - - assert(m); - assert(id); - - s = hashmap_get(m->sessions, id); - if (!s) { - s = session_new(m, id); - if (!s) - return -ENOMEM; - } - - if (_session) - *_session = s; - - return 0; -} - -int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user) { - User *u; - int r; - - assert(m); - assert(name); - - u = hashmap_get(m->users, UID_TO_PTR(uid)); - if (!u) { - r = user_new(&u, m, uid, gid, name); - if (r < 0) - return r; - } - - if (_user) - *_user = u; - - return 0; -} - -int manager_add_user_by_name(Manager *m, const char *name, User **_user) { - uid_t uid; - gid_t gid; - int r; - - assert(m); - assert(name); - - r = get_user_creds(&name, &uid, &gid, NULL, NULL); - if (r < 0) - return r; - - return manager_add_user(m, uid, gid, name, _user); -} - -int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user) { - struct passwd *p; - - assert(m); - - errno = 0; - p = getpwuid(uid); - if (!p) - return errno > 0 ? -errno : -ENOENT; - - return manager_add_user(m, uid, p->pw_gid, p->pw_name, _user); -} - -int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor) { - Inhibitor *i; - - assert(m); - assert(id); - - i = hashmap_get(m->inhibitors, id); - if (i) { - if (_inhibitor) - *_inhibitor = i; - - return 0; - } - - i = inhibitor_new(m, id); - if (!i) - return -ENOMEM; - - if (_inhibitor) - *_inhibitor = i; - - return 0; -} - -int manager_add_button(Manager *m, const char *name, Button **_button) { - Button *b; - - assert(m); - assert(name); - - b = hashmap_get(m->buttons, name); - if (!b) { - b = button_new(m, name); - if (!b) - return -ENOMEM; - } - - if (_button) - *_button = b; - - return 0; -} - -int manager_process_seat_device(Manager *m, struct udev_device *d) { - Device *device; - int r; - - assert(m); - - if (streq_ptr(udev_device_get_action(d), "remove")) { - - device = hashmap_get(m->devices, udev_device_get_syspath(d)); - if (!device) - return 0; - - seat_add_to_gc_queue(device->seat); - device_free(device); - - } else { - const char *sn; - Seat *seat = NULL; - bool master; - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - if (!seat_name_is_valid(sn)) { - log_warning("Device with invalid seat name %s found, ignoring.", sn); - return 0; - } - - seat = hashmap_get(m->seats, sn); - master = udev_device_has_tag(d, "master-of-seat"); - - /* Ignore non-master devices for unknown seats */ - if (!master && !seat) - return 0; - - r = manager_add_device(m, udev_device_get_syspath(d), master, &device); - if (r < 0) - return r; - - if (!seat) { - r = manager_add_seat(m, sn, &seat); - if (r < 0) { - if (!device->seat) - device_free(device); - - return r; - } - } - - device_attach(device, seat); - seat_start(seat); - } - - return 0; -} - -int manager_process_button_device(Manager *m, struct udev_device *d) { - Button *b; - - int r; - - assert(m); - - if (streq_ptr(udev_device_get_action(d), "remove")) { - - b = hashmap_get(m->buttons, udev_device_get_sysname(d)); - if (!b) - return 0; - - button_free(b); - - } else { - const char *sn; - - r = manager_add_button(m, udev_device_get_sysname(d), &b); - if (r < 0) - return r; - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - button_set_seat(b, sn); - button_open(b); - } - - return 0; -} - -int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) { - _cleanup_free_ char *unit = NULL; - Session *s; - int r; - - assert(m); - - if (pid < 1) - return -EINVAL; - - r = cg_pid_get_unit(pid, &unit); - if (r < 0) - return 0; - - s = hashmap_get(m->session_units, unit); - if (!s) - return 0; - - if (session) - *session = s; - return 1; -} - -int manager_get_user_by_pid(Manager *m, pid_t pid, User **user) { - _cleanup_free_ char *unit = NULL; - User *u; - int r; - - assert(m); - assert(user); - - if (pid < 1) - return -EINVAL; - - r = cg_pid_get_slice(pid, &unit); - if (r < 0) - return 0; - - u = hashmap_get(m->user_units, unit); - if (!u) - return 0; - - *user = u; - return 1; -} - -int manager_get_idle_hint(Manager *m, dual_timestamp *t) { - Session *s; - bool idle_hint; - dual_timestamp ts = DUAL_TIMESTAMP_NULL; - Iterator i; - - assert(m); - - idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, INHIBIT_BLOCK, t, false, false, 0, NULL); - - HASHMAP_FOREACH(s, m->sessions, i) { - dual_timestamp k; - int ih; - - ih = session_get_idle_hint(s, &k); - if (ih < 0) - return ih; - - if (!ih) { - if (!idle_hint) { - if (k.monotonic < ts.monotonic) - ts = k; - } else { - idle_hint = false; - ts = k; - } - } else if (idle_hint) { - - if (k.monotonic > ts.monotonic) - ts = k; - } - } - - if (t) - *t = ts; - - return idle_hint; -} - -bool manager_shall_kill(Manager *m, const char *user) { - assert(m); - assert(user); - - if (!m->kill_exclude_users && streq(user, "root")) - return false; - - if (strv_contains(m->kill_exclude_users, user)) - return false; - - if (!strv_isempty(m->kill_only_users)) - return strv_contains(m->kill_only_users, user); - - return m->kill_user_processes; -} - -static int vt_is_busy(unsigned int vtnr) { - struct vt_stat vt_stat; - int r = 0; - _cleanup_close_ int fd; - - assert(vtnr >= 1); - - /* We explicitly open /dev/tty1 here instead of /dev/tty0. If - * we'd open the latter we'd open the foreground tty which - * hence would be unconditionally busy. By opening /dev/tty1 - * we avoid this. Since tty1 is special and needs to be an - * explicitly loaded getty or DM this is safe. */ - - fd = open_terminal("/dev/tty1", O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return -errno; - - if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0) - r = -errno; - else - r = !!(vt_stat.v_state & (1 << vtnr)); - - return r; -} - -int manager_spawn_autovt(Manager *m, unsigned int vtnr) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char name[sizeof("autovt@tty.service") + DECIMAL_STR_MAX(unsigned int)]; - int r; - - assert(m); - assert(vtnr >= 1); - - if (vtnr > m->n_autovts && - vtnr != m->reserve_vt) - return 0; - - if (vtnr != m->reserve_vt) { - /* If this is the reserved TTY, we'll start the getty - * on it in any case, but otherwise only if it is not - * busy. */ - - r = vt_is_busy(vtnr); - if (r < 0) - return r; - else if (r > 0) - return -EBUSY; - } - - snprintf(name, sizeof(name), "autovt@tty%u.service", vtnr); - r = sd_bus_call_method( - m->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - &error, - NULL, - "ss", name, "fail"); - if (r < 0) - log_error("Failed to start %s: %s", name, bus_error_message(&error, r)); - - return r; -} - -static bool manager_is_docked(Manager *m) { - Iterator i; - Button *b; - - HASHMAP_FOREACH(b, m->buttons, i) - if (b->docked) - return true; - - return false; -} - -static int manager_count_external_displays(Manager *m) { - _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; - struct udev_list_entry *item = NULL, *first = NULL; - int r; - int n = 0; - - e = udev_enumerate_new(m->udev); - if (!e) - return -ENOMEM; - - r = udev_enumerate_add_match_subsystem(e, "drm"); - if (r < 0) - return r; - - r = udev_enumerate_scan_devices(e); - if (r < 0) - return r; - - first = udev_enumerate_get_list_entry(e); - udev_list_entry_foreach(item, first) { - _cleanup_udev_device_unref_ struct udev_device *d = NULL; - struct udev_device *p; - const char *status, *enabled, *dash, *nn, *i; - bool external = false; - - d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item)); - if (!d) - return -ENOMEM; - - p = udev_device_get_parent(d); - if (!p) - continue; - - /* If the parent shares the same subsystem as the - * device we are looking at then it is a connector, - * which is what we are interested in. */ - if (!streq_ptr(udev_device_get_subsystem(p), "drm")) - continue; - - nn = udev_device_get_sysname(d); - if (!nn) - continue; - - /* Ignore internal displays: the type is encoded in - * the sysfs name, as the second dash seperated item - * (the first is the card name, the last the connector - * number). We implement a whitelist of external - * displays here, rather than a whitelist, to ensure - * we don't block suspends too eagerly. */ - dash = strchr(nn, '-'); - if (!dash) - continue; - - dash++; - FOREACH_STRING(i, "VGA-", "DVI-I-", "DVI-D-", "DVI-A-" - "Composite-", "SVIDEO-", "Component-", - "DIN-", "DP-", "HDMI-A-", "HDMI-B-", "TV-") { - - if (startswith(dash, i)) { - external = true; - break; - } - } - if (!external) - continue; - - /* Ignore ports that are not enabled */ - enabled = udev_device_get_sysattr_value(d, "enabled"); - if (!enabled) - continue; - if (!streq_ptr(enabled, "enabled")) - continue; - - /* We count any connector which is not explicitly - * "disconnected" as connected. */ - status = udev_device_get_sysattr_value(d, "status"); - if (!streq_ptr(status, "disconnected")) - n++; - } - - return n; -} - -bool manager_is_docked_or_external_displays(Manager *m) { - int n; - - /* If we are docked don't react to lid closing */ - if (manager_is_docked(m)) { - log_debug("System is docked."); - return true; - } - - /* If we have more than one display connected, - * assume that we are docked. */ - n = manager_count_external_displays(m); - if (n < 0) - log_warning_errno(n, "Display counting failed: %m"); - else if (n >= 1) { - log_debug("External (%i) displays connected.", n); - return true; - } - - return false; -} diff --git a/src/grp-login/liblogind-core/logind-dbus.c b/src/grp-login/liblogind-core/logind-dbus.c deleted file mode 100644 index cb51e43a5c..0000000000 --- a/src/grp-login/liblogind-core/logind-dbus.c +++ /dev/null @@ -1,3169 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <pwd.h> -#include <string.h> -#include <unistd.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/audit-util.h" -#include "basic/dirent-util.h" -#include "basic/escape.h" -#include "basic/fd-util.h" -#include "basic/fileio-label.h" -#include "basic/formats-util.h" -#include "basic/fs-util.h" -#include "basic/mkdir.h" -#include "basic/path-util.h" -#include "basic/process-util.h" -#include "basic/selinux-util.h" -#include "basic/special.h" -#include "basic/strv.h" -#include "basic/terminal-util.h" -#include "basic/unit-name.h" -#include "basic/user-util.h" -#include "logind.h" -#include "sd-bus/bus-common-errors.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" -#include "shared/efivars.h" -#include "shared/sleep-config.h" -#include "shared/udev-util.h" -#include "shared/utmp-wtmp.h" - -int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - Session *session; - int r; - - assert(m); - assert(message); - assert(ret); - - if (isempty(name)) { - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_session(creds, &name); - if (r < 0) - return r; - } - - session = hashmap_get(m->sessions, name); - if (!session) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); - - *ret = session; - return 0; -} - -int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret) { - User *user; - int r; - - assert(m); - assert(message); - assert(ret); - - if (uid == UID_INVALID) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - - /* Note that we get the owner UID of the session, not the actual client UID here! */ - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_owner_uid(creds, &uid); - if (r < 0) - return r; - } - - user = hashmap_get(m->users, UID_TO_PTR(uid)); - if (!user) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user "UID_FMT" known or logged in", uid); - - *ret = user; - return 0; -} - -int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret) { - Seat *seat; - int r; - - assert(m); - assert(message); - assert(ret); - - if (isempty(name)) { - Session *session; - - r = manager_get_session_from_creds(m, message, NULL, error, &session); - if (r < 0) - return r; - - seat = session->seat; - if (!seat) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session has no seat."); - } else { - seat = hashmap_get(m->seats, name); - if (!seat) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name); - } - - *ret = seat; - return 0; -} - -static int property_get_idle_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(bus); - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0); -} - -static int property_get_idle_since_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - dual_timestamp t = DUAL_TIMESTAMP_NULL; - - assert(bus); - assert(reply); - assert(m); - - manager_get_idle_hint(m, &t); - - return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic); -} - -static int property_get_inhibited( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - InhibitWhat w; - - assert(bus); - assert(reply); - assert(m); - - w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY); - - return sd_bus_message_append(reply, "s", inhibit_what_to_string(w)); -} - -static int property_get_preparing( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - bool b; - - assert(bus); - assert(reply); - assert(m); - - if (streq(property, "PreparingForShutdown")) - b = !!(m->action_what & INHIBIT_SHUTDOWN); - else - b = !!(m->action_what & INHIBIT_SLEEP); - - return sd_bus_message_append(reply, "b", b); -} - -static int property_get_scheduled_shutdown( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - int r; - - assert(bus); - assert(reply); - assert(m); - - r = sd_bus_message_open_container(reply, 'r', "st"); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "st", m->scheduled_shutdown_type, m->scheduled_shutdown_timeout); - if (r < 0) - return r; - - return sd_bus_message_close_container(reply); -} - -static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction); - -static int property_get_docked( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(bus); - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "b", manager_is_docked_or_external_displays(m)); -} - -static int property_get_current_sessions( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(bus); - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "t", (uint64_t) hashmap_size(m->sessions)); -} - -static int property_get_current_inhibitors( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(bus); - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "t", (uint64_t) hashmap_size(m->inhibitors)); -} - -static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - const char *name; - Session *session; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, name, error, &session); - if (r < 0) - return r; - - p = session_bus_path(session); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_session_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Session *session = NULL; - Manager *m = userdata; - pid_t pid; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(pid_t) == sizeof(uint32_t)); - - r = sd_bus_message_read(message, "u", &pid); - if (r < 0) - return r; - if (pid < 0) - return -EINVAL; - - if (pid == 0) { - r = manager_get_session_from_creds(m, message, NULL, error, &session); - if (r < 0) - return r; - } else { - r = manager_get_session_by_pid(m, pid, &session); - if (r < 0) - return r; - - if (!session) - return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, "PID "PID_FMT" does not belong to any known session", pid); - } - - p = session_bus_path(session); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - uint32_t uid; - User *user; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "u", &uid); - if (r < 0) - return r; - - r = manager_get_user_from_creds(m, message, uid, error, &user); - if (r < 0) - return r; - - p = user_bus_path(user); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_user_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - User *user = NULL; - pid_t pid; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(pid_t) == sizeof(uint32_t)); - - r = sd_bus_message_read(message, "u", &pid); - if (r < 0) - return r; - if (pid < 0) - return -EINVAL; - - if (pid == 0) { - r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user); - if (r < 0) - return r; - } else { - r = manager_get_user_by_pid(m, pid, &user); - if (r < 0) - return r; - if (!user) - return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, "PID "PID_FMT" does not belong to any known or logged in user", pid); - } - - p = user_bus_path(user); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - const char *name; - Seat *seat; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_seat_from_creds(m, message, name, error, &seat); - if (r < 0) - return r; - - p = seat_bus_path(seat); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Manager *m = userdata; - Session *session; - Iterator i; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(susso)"); - if (r < 0) - return r; - - HASHMAP_FOREACH(session, m->sessions, i) { - _cleanup_free_ char *p = NULL; - - p = session_bus_path(session); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(susso)", - session->id, - (uint32_t) session->user->uid, - session->user->name, - session->seat ? session->seat->id : "", - p); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Manager *m = userdata; - User *user; - Iterator i; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(uso)"); - if (r < 0) - return r; - - HASHMAP_FOREACH(user, m->users, i) { - _cleanup_free_ char *p = NULL; - - p = user_bus_path(user); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(uso)", - (uint32_t) user->uid, - user->name, - p); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Manager *m = userdata; - Seat *seat; - Iterator i; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(so)"); - if (r < 0) - return r; - - HASHMAP_FOREACH(seat, m->seats, i) { - _cleanup_free_ char *p = NULL; - - p = seat_bus_path(seat); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(so)", seat->id, p); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Manager *m = userdata; - Inhibitor *inhibitor; - Iterator i; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(ssssuu)"); - if (r < 0) - return r; - - HASHMAP_FOREACH(inhibitor, m->inhibitors, i) { - - r = sd_bus_message_append(reply, "(ssssuu)", - strempty(inhibit_what_to_string(inhibitor->what)), - strempty(inhibitor->who), - strempty(inhibitor->why), - strempty(inhibit_mode_to_string(inhibitor->mode)), - (uint32_t) inhibitor->uid, - (uint32_t) inhibitor->pid); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -static int method_create_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop; - uint32_t audit_id = 0; - _cleanup_free_ char *id = NULL; - Session *session = NULL; - Manager *m = userdata; - User *user = NULL; - Seat *seat = NULL; - pid_t leader; - uid_t uid; - int remote; - uint32_t vtnr = 0; - SessionType t; - SessionClass c; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(pid_t) == sizeof(uint32_t)); - assert_cc(sizeof(uid_t) == sizeof(uint32_t)); - - r = sd_bus_message_read(message, "uusssssussbss", &uid, &leader, &service, &type, &class, &desktop, &cseat, &vtnr, &tty, &display, &remote, &remote_user, &remote_host); - if (r < 0) - return r; - - if (!uid_is_valid(uid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UID"); - if (leader < 0 || leader == 1) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID"); - - if (isempty(type)) - t = _SESSION_TYPE_INVALID; - else { - t = session_type_from_string(type); - if (t < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session type %s", type); - } - - if (isempty(class)) - c = _SESSION_CLASS_INVALID; - else { - c = session_class_from_string(class); - if (c < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session class %s", class); - } - - if (isempty(desktop)) - desktop = NULL; - else { - if (!string_is_safe(desktop)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid desktop string %s", desktop); - } - - if (isempty(cseat)) - seat = NULL; - else { - seat = hashmap_get(m->seats, cseat); - if (!seat) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", cseat); - } - - if (tty_is_vc(tty)) { - int v; - - if (!seat) - seat = m->seat0; - else if (seat != m->seat0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "TTY %s is virtual console but seat %s is not seat0", tty, seat->id); - - v = vtnr_from_tty(tty); - if (v <= 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot determine VT number from virtual console TTY %s", tty); - - if (!vtnr) - vtnr = (uint32_t) v; - else if (vtnr != (uint32_t) v) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified TTY and VT number do not match"); - - } else if (tty_is_console(tty)) { - - if (!seat) - seat = m->seat0; - else if (seat != m->seat0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but seat is not seat0"); - - if (vtnr != 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but VT number is not 0"); - } - - if (seat) { - if (seat_has_vts(seat)) { - if (!vtnr || vtnr > 63) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "VT number out of range"); - } else { - if (vtnr != 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat has no VTs but VT number not 0"); - } - } - - r = sd_bus_message_enter_container(message, 'a', "(sv)"); - if (r < 0) - return r; - - if (t == _SESSION_TYPE_INVALID) { - if (!isempty(display)) - t = SESSION_X11; - else if (!isempty(tty)) - t = SESSION_TTY; - else - t = SESSION_UNSPECIFIED; - } - - if (c == _SESSION_CLASS_INVALID) { - if (t == SESSION_UNSPECIFIED) - c = SESSION_BACKGROUND; - else - c = SESSION_USER; - } - - if (leader == 0) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_pid(creds, (pid_t*) &leader); - if (r < 0) - return r; - } - - r = manager_get_session_by_pid(m, leader, NULL); - if (r > 0) - return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already running in a session"); - - /* - * Old gdm and lightdm start the user-session on the same VT as - * the greeter session. But they destroy the greeter session - * after the user-session and want the user-session to take - * over the VT. We need to support this for - * backwards-compatibility, so make sure we allow new sessions - * on a VT that a greeter is running on. Furthermore, to allow - * re-logins, we have to allow a greeter to take over a used VT for - * the exact same reasons. - */ - if (c != SESSION_GREETER && - vtnr > 0 && - vtnr < m->seat0->position_count && - m->seat0->positions[vtnr] && - m->seat0->positions[vtnr]->class != SESSION_GREETER) - return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already occupied by a session"); - - if (hashmap_size(m->sessions) >= m->sessions_max) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Maximum number of sessions (%" PRIu64 ") reached, refusing further sessions.", m->sessions_max); - - audit_session_from_pid(leader, &audit_id); - if (audit_id > 0) { - /* Keep our session IDs and the audit session IDs in sync */ - - if (asprintf(&id, "%"PRIu32, audit_id) < 0) - return -ENOMEM; - - /* Wut? There's already a session by this name and we - * didn't find it above? Weird, then let's not trust - * the audit data and let's better register a new - * ID */ - if (hashmap_get(m->sessions, id)) { - log_warning("Existing logind session ID %s used by new audit session, ignoring", id); - audit_id = 0; - - id = mfree(id); - } - } - - if (!id) { - do { - id = mfree(id); - - if (asprintf(&id, "c%lu", ++m->session_counter) < 0) - return -ENOMEM; - - } while (hashmap_get(m->sessions, id)); - } - - r = manager_add_user_by_uid(m, uid, &user); - if (r < 0) - goto fail; - - r = manager_add_session(m, id, &session); - if (r < 0) - goto fail; - - session_set_user(session, user); - - session->leader = leader; - session->audit_id = audit_id; - session->type = t; - session->class = c; - session->remote = remote; - session->vtnr = vtnr; - - if (!isempty(tty)) { - session->tty = strdup(tty); - if (!session->tty) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(display)) { - session->display = strdup(display); - if (!session->display) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(remote_user)) { - session->remote_user = strdup(remote_user); - if (!session->remote_user) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(remote_host)) { - session->remote_host = strdup(remote_host); - if (!session->remote_host) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(service)) { - session->service = strdup(service); - if (!session->service) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(desktop)) { - session->desktop = strdup(desktop); - if (!session->desktop) { - r = -ENOMEM; - goto fail; - } - } - - if (seat) { - r = seat_attach_session(seat, session); - if (r < 0) - goto fail; - } - - r = session_start(session); - if (r < 0) - goto fail; - - session->create_message = sd_bus_message_ref(message); - - /* Now, let's wait until the slice unit and stuff got - * created. We send the reply back from - * session_send_create_reply(). */ - - return 1; - -fail: - if (session) - session_add_to_gc_queue(session); - - if (user) - user_add_to_gc_queue(user); - - return r; -} - -static int method_release_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Session *session; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, name, error, &session); - if (r < 0) - return r; - - r = session_release(session); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Session *session; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, name, error, &session); - if (r < 0) - return r; - - return bus_session_method_activate(message, session, error); -} - -static int method_activate_session_on_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *session_name, *seat_name; - Manager *m = userdata; - Session *session; - Seat *seat; - int r; - - assert(message); - assert(m); - - /* Same as ActivateSession() but refuses to work if - * the seat doesn't match */ - - r = sd_bus_message_read(message, "ss", &session_name, &seat_name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, session_name, error, &session); - if (r < 0) - return r; - - r = manager_get_seat_from_creds(m, message, seat_name, error, &seat); - if (r < 0) - return r; - - if (session->seat != seat) - return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", session_name, seat_name); - - r = session_activate(session); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_lock_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Session *session; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, name, error, &session); - if (r < 0) - return r; - - return bus_session_method_lock(message, session, error); -} - -static int method_lock_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - int r; - - assert(message); - assert(m); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.lock-sessions", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions")); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_kill_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *name; - Manager *m = userdata; - Session *session; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, name, error, &session); - if (r < 0) - return r; - - return bus_session_method_kill(message, session, error); -} - -static int method_kill_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - uint32_t uid; - User *user; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "u", &uid); - if (r < 0) - return r; - - r = manager_get_user_from_creds(m, message, uid, error, &user); - if (r < 0) - return r; - - return bus_user_method_kill(message, user, error); -} - -static int method_terminate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - const char *name; - Session *session; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_session_from_creds(m, message, name, error, &session); - if (r < 0) - return r; - - return bus_session_method_terminate(message, session, error); -} - -static int method_terminate_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - uint32_t uid; - User *user; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "u", &uid); - if (r < 0) - return r; - - r = manager_get_user_from_creds(m, message, uid, error, &user); - if (r < 0) - return r; - - return bus_user_method_terminate(message, user, error); -} - -static int method_terminate_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - const char *name; - Seat *seat; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = manager_get_seat_from_creds(m, message, name, error, &seat); - if (r < 0) - return r; - - return bus_seat_method_terminate(message, seat, error); -} - -static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *cc = NULL; - Manager *m = userdata; - int r, b, interactive; - struct passwd *pw; - const char *path; - uint32_t uid; - bool self = false; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive); - if (r < 0) - return r; - - if (uid == UID_INVALID) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - - /* Note that we get the owner UID of the session, not the actual client UID here! */ - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_owner_uid(creds, &uid); - if (r < 0) - return r; - - self = true; - - } else if (!uid_is_valid(uid)) - return -EINVAL; - - errno = 0; - pw = getpwuid(uid); - if (!pw) - return errno > 0 ? -errno : -ENOENT; - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - self ? "org.freedesktop.login1.set-self-linger" : "org.freedesktop.login1.set-user-linger", - NULL, - interactive, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - - mkdir_p_label("/var/lib/systemd", 0755); - - r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0); - if (r < 0) - return r; - - cc = cescape(pw->pw_name); - if (!cc) - return -ENOMEM; - - path = strjoina("/var/lib/systemd/linger/", cc); - if (b) { - User *u; - - r = touch(path); - if (r < 0) - return r; - - if (manager_add_user_by_uid(m, uid, &u) >= 0) - user_start(u); - - } else { - User *u; - - r = unlink(path); - if (r < 0 && errno != ENOENT) - return -errno; - - u = hashmap_get(m->users, UID_TO_PTR(uid)); - if (u) - user_add_to_gc_queue(u); - } - - return sd_bus_reply_method_return(message, NULL); -} - -static int trigger_device(Manager *m, struct udev_device *d) { - _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; - struct udev_list_entry *first, *item; - int r; - - assert(m); - - e = udev_enumerate_new(m->udev); - if (!e) - return -ENOMEM; - - if (d) { - r = udev_enumerate_add_match_parent(e, d); - if (r < 0) - return r; - } - - r = udev_enumerate_scan_devices(e); - if (r < 0) - return r; - - first = udev_enumerate_get_list_entry(e); - udev_list_entry_foreach(item, first) { - _cleanup_free_ char *t = NULL; - const char *p; - - p = udev_list_entry_get_name(item); - - t = strappend(p, "/uevent"); - if (!t) - return -ENOMEM; - - write_string_file(t, "change", WRITE_STRING_FILE_CREATE); - } - - return 0; -} - -static int attach_device(Manager *m, const char *seat, const char *sysfs) { - _cleanup_udev_device_unref_ struct udev_device *d = NULL; - _cleanup_free_ char *rule = NULL, *file = NULL; - const char *id_for_seat; - int r; - - assert(m); - assert(seat); - assert(sysfs); - - d = udev_device_new_from_syspath(m->udev, sysfs); - if (!d) - return -ENODEV; - - if (!udev_device_has_tag(d, "seat")) - return -ENODEV; - - id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT"); - if (!id_for_seat) - return -ENODEV; - - if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) - return -ENOMEM; - - if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) - return -ENOMEM; - - mkdir_p_label("/etc/udev/rules.d", 0755); - r = write_string_file_atomic_label(file, rule); - if (r < 0) - return r; - - return trigger_device(m, d); -} - -static int flush_devices(Manager *m) { - _cleanup_closedir_ DIR *d; - - assert(m); - - d = opendir("/etc/udev/rules.d"); - if (!d) { - if (errno != ENOENT) - log_warning_errno(errno, "Failed to open /etc/udev/rules.d: %m"); - } else { - struct dirent *de; - - while ((de = readdir(d))) { - - if (!dirent_is_file(de)) - continue; - - if (!startswith(de->d_name, "72-seat-")) - continue; - - if (!endswith(de->d_name, ".rules")) - continue; - - if (unlinkat(dirfd(d), de->d_name, 0) < 0) - log_warning_errno(errno, "Failed to unlink %s: %m", de->d_name); - } - } - - return trigger_device(m, NULL); -} - -static int method_attach_device(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *sysfs, *seat; - Manager *m = userdata; - int interactive, r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive); - if (r < 0) - return r; - - if (!path_startswith(sysfs, "/sys")) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs); - - if (!seat_name_is_valid(seat)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.attach-device", - NULL, - interactive, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - - r = attach_device(m, seat, sysfs); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_flush_devices(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - int interactive, r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "b", &interactive); - if (r < 0) - return r; - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.flush-devices", - NULL, - interactive, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - - r = flush_devices(m); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int have_multiple_sessions( - Manager *m, - uid_t uid) { - - Session *session; - Iterator i; - - assert(m); - - /* Check for other users' sessions. Greeter sessions do not - * count, and non-login sessions do not count either. */ - HASHMAP_FOREACH(session, m->sessions, i) - if (session->class == SESSION_USER && - session->user->uid != uid) - return true; - - return false; -} - -static int bus_manager_log_shutdown( - Manager *m, - InhibitWhat w, - const char *unit_name) { - - const char *p, *q; - - assert(m); - assert(unit_name); - - if (w != INHIBIT_SHUTDOWN) - return 0; - - if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) { - p = "MESSAGE=System is powering down"; - q = "SHUTDOWN=power-off"; - } else if (streq(unit_name, SPECIAL_HALT_TARGET)) { - p = "MESSAGE=System is halting"; - q = "SHUTDOWN=halt"; - } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) { - p = "MESSAGE=System is rebooting"; - q = "SHUTDOWN=reboot"; - } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) { - p = "MESSAGE=System is rebooting with kexec"; - q = "SHUTDOWN=kexec"; - } else { - p = "MESSAGE=System is shutting down"; - q = NULL; - } - - if (isempty(m->wall_message)) - p = strjoina(p, "."); - else - p = strjoina(p, " (", m->wall_message, ")."); - - return log_struct(LOG_NOTICE, - LOG_MESSAGE_ID(SD_MESSAGE_SHUTDOWN), - p, - q, - NULL); -} - -static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) { - Manager *m = userdata; - - assert(e); - assert(m); - - m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source); - return 0; -} - -int manager_set_lid_switch_ignore(Manager *m, usec_t until) { - int r; - - assert(m); - - if (until <= now(CLOCK_MONOTONIC)) - return 0; - - /* We want to ignore the lid switch for a while after each - * suspend, and after boot-up. Hence let's install a timer for - * this. As long as the event source exists we ignore the lid - * switch. */ - - if (m->lid_switch_ignore_event_source) { - usec_t u; - - r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u); - if (r < 0) - return r; - - if (until <= u) - return 0; - - r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until); - } else - r = sd_event_add_time( - m->event, - &m->lid_switch_ignore_event_source, - CLOCK_MONOTONIC, - until, 0, - lid_switch_ignore_handler, m); - - return r; -} - -static void reset_scheduled_shutdown(Manager *m) { - m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source); - m->wall_message_timeout_source = sd_event_source_unref(m->wall_message_timeout_source); - m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source); - m->scheduled_shutdown_type = mfree(m->scheduled_shutdown_type); - m->scheduled_shutdown_timeout = 0; - m->shutdown_dry_run = false; - - if (m->unlink_nologin) { - (void) unlink("/run/nologin"); - m->unlink_nologin = false; - } -} - -static int execute_shutdown_or_sleep( - Manager *m, - InhibitWhat w, - const char *unit_name, - sd_bus_error *error) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - char *c = NULL; - const char *p; - int r; - - assert(m); - assert(w >= 0); - assert(w < _INHIBIT_WHAT_MAX); - assert(unit_name); - - bus_manager_log_shutdown(m, w, unit_name); - - if (m->shutdown_dry_run) { - log_info("Running in dry run, suppressing action."); - reset_scheduled_shutdown(m); - } else { - r = sd_bus_call_method( - m->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - error, - &reply, - "ss", unit_name, "replace-irreversibly"); - if (r < 0) - return r; - - r = sd_bus_message_read(reply, "o", &p); - if (r < 0) - return r; - - c = strdup(p); - if (!c) - return -ENOMEM; - } - - m->action_unit = unit_name; - free(m->action_job); - m->action_job = c; - m->action_what = w; - - /* Make sure the lid switch is ignored for a while */ - manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + m->holdoff_timeout_usec); - - return 0; -} - -int manager_dispatch_delayed(Manager *manager, bool timeout) { - - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - Inhibitor *offending = NULL; - int r; - - assert(manager); - - if (manager->action_what == 0 || manager->action_job) - return 0; - - if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) { - _cleanup_free_ char *comm = NULL, *u = NULL; - - if (!timeout) - return 0; - - (void) get_process_comm(offending->pid, &comm); - u = uid_to_name(offending->uid); - - log_notice("Delay lock is active (UID "UID_FMT"/%s, PID "PID_FMT"/%s) but inhibitor timeout is reached.", - offending->uid, strna(u), - offending->pid, strna(comm)); - } - - /* Actually do the operation */ - r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error); - if (r < 0) { - log_warning("Failed to send delayed message: %s", bus_error_message(&error, r)); - - manager->action_unit = NULL; - manager->action_what = 0; - return r; - } - - return 1; -} - -static int manager_inhibit_timeout_handler( - sd_event_source *s, - uint64_t usec, - void *userdata) { - - Manager *manager = userdata; - int r; - - assert(manager); - assert(manager->inhibit_timeout_source == s); - - r = manager_dispatch_delayed(manager, true); - return (r < 0) ? r : 0; -} - -static int delay_shutdown_or_sleep( - Manager *m, - InhibitWhat w, - const char *unit_name) { - - int r; - usec_t timeout_val; - - assert(m); - assert(w >= 0); - assert(w < _INHIBIT_WHAT_MAX); - assert(unit_name); - - timeout_val = now(CLOCK_MONOTONIC) + m->inhibit_delay_max; - - if (m->inhibit_timeout_source) { - r = sd_event_source_set_time(m->inhibit_timeout_source, timeout_val); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_time() failed: %m"); - - r = sd_event_source_set_enabled(m->inhibit_timeout_source, SD_EVENT_ONESHOT); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_enabled() failed: %m"); - } else { - r = sd_event_add_time(m->event, &m->inhibit_timeout_source, CLOCK_MONOTONIC, - timeout_val, 0, manager_inhibit_timeout_handler, m); - if (r < 0) - return r; - } - - m->action_unit = unit_name; - m->action_what = w; - - return 0; -} - -static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { - - static const char * const signal_name[_INHIBIT_WHAT_MAX] = { - [INHIBIT_SHUTDOWN] = "PrepareForShutdown", - [INHIBIT_SLEEP] = "PrepareForSleep" - }; - - int active = _active; - - assert(m); - assert(w >= 0); - assert(w < _INHIBIT_WHAT_MAX); - assert(signal_name[w]); - - return sd_bus_emit_signal(m->bus, - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - signal_name[w], - "b", - active); -} - -int bus_manager_shutdown_or_sleep_now_or_later( - Manager *m, - const char *unit_name, - InhibitWhat w, - sd_bus_error *error) { - - bool delayed; - int r; - - assert(m); - assert(unit_name); - assert(w >= 0); - assert(w <= _INHIBIT_WHAT_MAX); - assert(!m->action_job); - - /* Tell everybody to prepare for shutdown/sleep */ - send_prepare_for(m, w, true); - - delayed = - m->inhibit_delay_max > 0 && - manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL); - - if (delayed) - /* Shutdown is delayed, keep in mind what we - * want to do, and start a timeout */ - r = delay_shutdown_or_sleep(m, w, unit_name); - else - /* Shutdown is not delayed, execute it - * immediately */ - r = execute_shutdown_or_sleep(m, w, unit_name, error); - - return r; -} - -static int verify_shutdown_creds( - Manager *m, - sd_bus_message *message, - InhibitWhat w, - bool interactive, - const char *action, - const char *action_multiple_sessions, - const char *action_ignore_inhibit, - sd_bus_error *error) { - - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - bool multiple_sessions, blocked; - uid_t uid; - int r; - - assert(m); - assert(message); - assert(w >= 0); - assert(w <= _INHIBIT_WHAT_MAX); - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_euid(creds, &uid); - if (r < 0) - return r; - - r = have_multiple_sessions(m, uid); - if (r < 0) - return r; - - multiple_sessions = r > 0; - blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL); - - if (multiple_sessions && action_multiple_sessions) { - r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, NULL, interactive, UID_INVALID, &m->polkit_registry, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - } - - if (blocked && action_ignore_inhibit) { - r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, NULL, interactive, UID_INVALID, &m->polkit_registry, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - } - - if (!multiple_sessions && !blocked && action) { - r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, NULL, interactive, UID_INVALID, &m->polkit_registry, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - } - - return 0; -} - -static int method_do_shutdown_or_sleep( - Manager *m, - sd_bus_message *message, - const char *unit_name, - InhibitWhat w, - const char *action, - const char *action_multiple_sessions, - const char *action_ignore_inhibit, - const char *sleep_verb, - sd_bus_error *error) { - - int interactive, r; - - assert(m); - assert(message); - assert(unit_name); - assert(w >= 0); - assert(w <= _INHIBIT_WHAT_MAX); - - r = sd_bus_message_read(message, "b", &interactive); - if (r < 0) - return r; - - /* Don't allow multiple jobs being executed at the same time */ - if (m->action_what) - return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress"); - - if (sleep_verb) { - r = can_sleep(sleep_verb); - if (r < 0) - return r; - - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, "Sleep verb not supported"); - } - - r = verify_shutdown_creds(m, message, w, interactive, action, action_multiple_sessions, - action_ignore_inhibit, error); - if (r != 0) - return r; - - r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_do_shutdown_or_sleep( - m, message, - SPECIAL_POWEROFF_TARGET, - INHIBIT_SHUTDOWN, - "org.freedesktop.login1.power-off", - "org.freedesktop.login1.power-off-multiple-sessions", - "org.freedesktop.login1.power-off-ignore-inhibit", - NULL, - error); -} - -static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_do_shutdown_or_sleep( - m, message, - SPECIAL_REBOOT_TARGET, - INHIBIT_SHUTDOWN, - "org.freedesktop.login1.reboot", - "org.freedesktop.login1.reboot-multiple-sessions", - "org.freedesktop.login1.reboot-ignore-inhibit", - NULL, - error); -} - -static int method_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_do_shutdown_or_sleep( - m, message, - SPECIAL_SUSPEND_TARGET, - INHIBIT_SLEEP, - "org.freedesktop.login1.suspend", - "org.freedesktop.login1.suspend-multiple-sessions", - "org.freedesktop.login1.suspend-ignore-inhibit", - "suspend", - error); -} - -static int nologin_timeout_handler( - sd_event_source *s, - uint64_t usec, - void *userdata) { - - Manager *m = userdata; - int r; - - log_info("Creating /run/nologin, blocking further logins..."); - - r = write_string_file_atomic_label("/run/nologin", "System is going down."); - if (r < 0) - log_error_errno(r, "Failed to create /run/nologin: %m"); - else - m->unlink_nologin = true; - - return 0; -} - -static int update_schedule_file(Manager *m) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(m); - - r = mkdir_safe_label("/run/systemd/shutdown", 0755, 0, 0); - if (r < 0) - return log_error_errno(r, "Failed to create shutdown subdirectory: %m"); - - r = fopen_temporary("/run/systemd/shutdown/scheduled", &f, &temp_path); - if (r < 0) - return log_error_errno(r, "Failed to save information about scheduled shutdowns: %m"); - - (void) fchmod(fileno(f), 0644); - - fprintf(f, - "USEC="USEC_FMT"\n" - "WARN_WALL=%i\n" - "MODE=%s\n", - m->scheduled_shutdown_timeout, - m->enable_wall_messages, - m->scheduled_shutdown_type); - - if (!isempty(m->wall_message)) { - _cleanup_free_ char *t; - - t = cescape(m->wall_message); - if (!t) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "WALL_MESSAGE=%s\n", t); - } - - r = fflush_and_check(f); - if (r < 0) - goto fail; - - if (rename(temp_path, "/run/systemd/shutdown/scheduled") < 0) { - r = -errno; - goto fail; - } - - return 0; - -fail: - (void) unlink(temp_path); - (void) unlink("/run/systemd/shutdown/scheduled"); - - return log_error_errno(r, "Failed to write information about scheduled shutdowns: %m"); -} - -static int manager_scheduled_shutdown_handler( - sd_event_source *s, - uint64_t usec, - void *userdata) { - - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - Manager *m = userdata; - const char *target; - int r; - - assert(m); - - if (isempty(m->scheduled_shutdown_type)) - return 0; - - if (streq(m->scheduled_shutdown_type, "halt")) - target = SPECIAL_HALT_TARGET; - else if (streq(m->scheduled_shutdown_type, "poweroff")) - target = SPECIAL_POWEROFF_TARGET; - else - target = SPECIAL_REBOOT_TARGET; - - r = execute_shutdown_or_sleep(m, 0, target, &error); - if (r < 0) - return log_error_errno(r, "Unable to execute transition to %s: %m", target); - - return 0; -} - -static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - const char *action_multiple_sessions = NULL; - const char *action_ignore_inhibit = NULL; - const char *action = NULL; - uint64_t elapse; - char *type; - int r; - - assert(m); - assert(message); - - r = sd_bus_message_read(message, "st", &type, &elapse); - if (r < 0) - return r; - - if (startswith(type, "dry-")) { - type += 4; - m->shutdown_dry_run = true; - } - - if (streq(type, "reboot")) { - action = "org.freedesktop.login1.reboot"; - action_multiple_sessions = "org.freedesktop.login1.reboot-multiple-sessions"; - action_ignore_inhibit = "org.freedesktop.login1.reboot-ignore-inhibit"; - } else if (streq(type, "halt")) { - action = "org.freedesktop.login1.halt"; - action_multiple_sessions = "org.freedesktop.login1.halt-multiple-sessions"; - action_ignore_inhibit = "org.freedesktop.login1.halt-ignore-inhibit"; - } else if (streq(type, "poweroff")) { - action = "org.freedesktop.login1.power-off"; - action_multiple_sessions = "org.freedesktop.login1.power-off-multiple-sessions"; - action_ignore_inhibit = "org.freedesktop.login1.power-off-ignore-inhibit"; - } else - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type"); - - r = verify_shutdown_creds(m, message, INHIBIT_SHUTDOWN, false, - action, action_multiple_sessions, action_ignore_inhibit, error); - if (r != 0) - return r; - - if (m->scheduled_shutdown_timeout_source) { - r = sd_event_source_set_time(m->scheduled_shutdown_timeout_source, elapse); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_time() failed: %m"); - - r = sd_event_source_set_enabled(m->scheduled_shutdown_timeout_source, SD_EVENT_ONESHOT); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_enabled() failed: %m"); - } else { - r = sd_event_add_time(m->event, &m->scheduled_shutdown_timeout_source, - CLOCK_REALTIME, elapse, 0, manager_scheduled_shutdown_handler, m); - if (r < 0) - return log_error_errno(r, "sd_event_add_time() failed: %m"); - } - - r = free_and_strdup(&m->scheduled_shutdown_type, type); - if (r < 0) { - m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source); - return log_oom(); - } - - if (m->nologin_timeout_source) { - r = sd_event_source_set_time(m->nologin_timeout_source, elapse); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_time() failed: %m"); - - r = sd_event_source_set_enabled(m->nologin_timeout_source, SD_EVENT_ONESHOT); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_enabled() failed: %m"); - } else { - r = sd_event_add_time(m->event, &m->nologin_timeout_source, - CLOCK_REALTIME, elapse - 5 * USEC_PER_MINUTE, 0, nologin_timeout_handler, m); - if (r < 0) - return log_error_errno(r, "sd_event_add_time() failed: %m"); - } - - m->scheduled_shutdown_timeout = elapse; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds); - if (r >= 0) { - const char *tty = NULL; - - (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid); - (void) sd_bus_creds_get_tty(creds, &tty); - - r = free_and_strdup(&m->scheduled_shutdown_tty, tty); - if (r < 0) { - m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source); - return log_oom(); - } - } - - r = manager_setup_wall_message_timer(m); - if (r < 0) - return r; - - if (!isempty(type)) { - r = update_schedule_file(m); - if (r < 0) - return r; - } else - (void) unlink("/run/systemd/shutdown/scheduled"); - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - bool cancelled; - - assert(m); - assert(message); - - cancelled = m->scheduled_shutdown_type != NULL; - reset_scheduled_shutdown(m); - - if (cancelled) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - const char *tty = NULL; - uid_t uid = 0; - int r; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds); - if (r >= 0) { - (void) sd_bus_creds_get_uid(creds, &uid); - (void) sd_bus_creds_get_tty(creds, &tty); - } - - utmp_wall("The system shutdown has been cancelled", - uid_to_name(uid), tty, logind_wall_tty_filter, m); - } - - return sd_bus_reply_method_return(message, "b", cancelled); -} - -static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_do_shutdown_or_sleep( - m, message, - SPECIAL_HIBERNATE_TARGET, - INHIBIT_SLEEP, - "org.freedesktop.login1.hibernate", - "org.freedesktop.login1.hibernate-multiple-sessions", - "org.freedesktop.login1.hibernate-ignore-inhibit", - "hibernate", - error); -} - -static int method_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_do_shutdown_or_sleep( - m, message, - SPECIAL_HYBRID_SLEEP_TARGET, - INHIBIT_SLEEP, - "org.freedesktop.login1.hibernate", - "org.freedesktop.login1.hibernate-multiple-sessions", - "org.freedesktop.login1.hibernate-ignore-inhibit", - "hybrid-sleep", - error); -} - -static int method_can_shutdown_or_sleep( - Manager *m, - sd_bus_message *message, - InhibitWhat w, - const char *action, - const char *action_multiple_sessions, - const char *action_ignore_inhibit, - const char *sleep_verb, - sd_bus_error *error) { - - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - bool multiple_sessions, challenge, blocked; - const char *result = NULL; - uid_t uid; - int r; - - assert(m); - assert(message); - assert(w >= 0); - assert(w <= _INHIBIT_WHAT_MAX); - assert(action); - assert(action_multiple_sessions); - assert(action_ignore_inhibit); - - if (sleep_verb) { - r = can_sleep(sleep_verb); - if (r < 0) - return r; - if (r == 0) - return sd_bus_reply_method_return(message, "s", "na"); - } - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_euid(creds, &uid); - if (r < 0) - return r; - - r = have_multiple_sessions(m, uid); - if (r < 0) - return r; - - multiple_sessions = r > 0; - blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL); - - if (multiple_sessions) { - r = bus_test_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, NULL, UID_INVALID, &challenge, error); - if (r < 0) - return r; - - if (r > 0) - result = "yes"; - else if (challenge) - result = "challenge"; - else - result = "no"; - } - - if (blocked) { - r = bus_test_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, NULL, UID_INVALID, &challenge, error); - if (r < 0) - return r; - - if (r > 0 && !result) - result = "yes"; - else if (challenge && (!result || streq(result, "yes"))) - result = "challenge"; - else - result = "no"; - } - - if (!multiple_sessions && !blocked) { - /* If neither inhibit nor multiple sessions - * apply then just check the normal policy */ - - r = bus_test_polkit(message, CAP_SYS_BOOT, action, NULL, UID_INVALID, &challenge, error); - if (r < 0) - return r; - - if (r > 0) - result = "yes"; - else if (challenge) - result = "challenge"; - else - result = "no"; - } - - return sd_bus_reply_method_return(message, "s", result); -} - -static int method_can_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_can_shutdown_or_sleep( - m, message, - INHIBIT_SHUTDOWN, - "org.freedesktop.login1.power-off", - "org.freedesktop.login1.power-off-multiple-sessions", - "org.freedesktop.login1.power-off-ignore-inhibit", - NULL, - error); -} - -static int method_can_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_can_shutdown_or_sleep( - m, message, - INHIBIT_SHUTDOWN, - "org.freedesktop.login1.reboot", - "org.freedesktop.login1.reboot-multiple-sessions", - "org.freedesktop.login1.reboot-ignore-inhibit", - NULL, - error); -} - -static int method_can_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_can_shutdown_or_sleep( - m, message, - INHIBIT_SLEEP, - "org.freedesktop.login1.suspend", - "org.freedesktop.login1.suspend-multiple-sessions", - "org.freedesktop.login1.suspend-ignore-inhibit", - "suspend", - error); -} - -static int method_can_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_can_shutdown_or_sleep( - m, message, - INHIBIT_SLEEP, - "org.freedesktop.login1.hibernate", - "org.freedesktop.login1.hibernate-multiple-sessions", - "org.freedesktop.login1.hibernate-ignore-inhibit", - "hibernate", - error); -} - -static int method_can_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - return method_can_shutdown_or_sleep( - m, message, - INHIBIT_SLEEP, - "org.freedesktop.login1.hibernate", - "org.freedesktop.login1.hibernate-multiple-sessions", - "org.freedesktop.login1.hibernate-ignore-inhibit", - "hybrid-sleep", - error); -} - -static int property_get_reboot_to_firmware_setup( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - int r; - - assert(bus); - assert(reply); - assert(userdata); - - r = efi_get_reboot_to_firmware(); - if (r < 0 && r != -EOPNOTSUPP) - return r; - - return sd_bus_message_append(reply, "b", r > 0); -} - -static int method_set_reboot_to_firmware_setup( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - int b, r; - Manager *m = userdata; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "b", &b); - if (r < 0) - return r; - - r = bus_verify_polkit_async(message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.set-reboot-to-firmware-setup", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - - r = efi_set_reboot_to_firmware(b); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_can_reboot_to_firmware_setup( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - int r; - bool challenge; - const char *result; - Manager *m = userdata; - - assert(message); - assert(m); - - r = efi_reboot_to_firmware_supported(); - if (r == -EOPNOTSUPP) - return sd_bus_reply_method_return(message, "s", "na"); - else if (r < 0) - return r; - - r = bus_test_polkit(message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.set-reboot-to-firmware-setup", - NULL, - UID_INVALID, - &challenge, - error); - if (r < 0) - return r; - - if (r > 0) - result = "yes"; - else if (challenge) - result = "challenge"; - else - result = "no"; - - return sd_bus_reply_method_return(message, "s", result); -} - -static int method_set_wall_message( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - int r; - Manager *m = userdata; - char *wall_message; - int enable_wall_messages; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "sb", &wall_message, &enable_wall_messages); - if (r < 0) - return r; - - r = bus_verify_polkit_async(message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.set-wall-message", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - if (isempty(wall_message)) - m->wall_message = mfree(m->wall_message); - else { - r = free_and_strdup(&m->wall_message, wall_message); - if (r < 0) - return log_oom(); - } - - m->enable_wall_messages = enable_wall_messages; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - const char *who, *why, *what, *mode; - _cleanup_free_ char *id = NULL; - _cleanup_close_ int fifo_fd = -1; - Manager *m = userdata; - Inhibitor *i = NULL; - InhibitMode mm; - InhibitWhat w; - pid_t pid; - uid_t uid; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode); - if (r < 0) - return r; - - w = inhibit_what_from_string(what); - if (w <= 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid what specification %s", what); - - mm = inhibit_mode_from_string(mode); - if (mm < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid mode specification %s", mode); - - /* Delay is only supported for shutdown/sleep */ - if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP))) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delay inhibitors only supported for shutdown and sleep"); - - /* Don't allow taking delay locks while we are already - * executing the operation. We shouldn't create the impression - * that the lock was successful if the machine is about to go - * down/suspend any moment. */ - if (m->action_what & w) - return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running"); - - r = bus_verify_polkit_async( - message, - CAP_SYS_BOOT, - w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") : - w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") : - w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" : - w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" : - w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" : - w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" : - "org.freedesktop.login1.inhibit-handle-lid-switch", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_euid(creds, &uid); - if (r < 0) - return r; - - r = sd_bus_creds_get_pid(creds, &pid); - if (r < 0) - return r; - - if (hashmap_size(m->inhibitors) >= m->inhibitors_max) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Maximum number of inhibitors (%" PRIu64 ") reached, refusing further inhibitors.", m->inhibitors_max); - - do { - id = mfree(id); - - if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0) - return -ENOMEM; - - } while (hashmap_get(m->inhibitors, id)); - - r = manager_add_inhibitor(m, id, &i); - if (r < 0) - return r; - - i->what = w; - i->mode = mm; - i->pid = pid; - i->uid = uid; - i->why = strdup(why); - i->who = strdup(who); - - if (!i->why || !i->who) { - r = -ENOMEM; - goto fail; - } - - fifo_fd = inhibitor_create_fifo(i); - if (fifo_fd < 0) { - r = fifo_fd; - goto fail; - } - - inhibitor_start(i); - - return sd_bus_reply_method_return(message, "h", fifo_fd); - -fail: - if (i) - inhibitor_free(i); - - return r; -} - -const sd_bus_vtable manager_vtable[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_WRITABLE_PROPERTY("EnableWallMessages", "b", NULL, NULL, offsetof(Manager, enable_wall_messages), 0), - SD_BUS_WRITABLE_PROPERTY("WallMessage", "s", NULL, NULL, offsetof(Manager, wall_message), 0), - - SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("RebootToFirmwareSetup", "b", property_get_reboot_to_firmware_setup, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("HandleLidSwitchDocked", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_docked), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("HoldoffTimeoutUSec", "t", NULL, offsetof(Manager, holdoff_timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0), - SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0), - SD_BUS_PROPERTY("ScheduledShutdown", "(st)", property_get_scheduled_shutdown, 0, 0), - SD_BUS_PROPERTY("Docked", "b", property_get_docked, 0, 0), - SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(Manager, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("RuntimeDirectorySize", "t", bus_property_get_size, offsetof(Manager, runtime_dir_size), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("InhibitorsMax", "t", NULL, offsetof(Manager, inhibitors_max), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("NCurrentInhibitors", "t", property_get_current_inhibitors, 0, 0), - SD_BUS_PROPERTY("SessionsMax", "t", NULL, offsetof(Manager, sessions_max), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("NCurrentSessions", "t", property_get_current_sessions, 0, 0), - SD_BUS_PROPERTY("UserTasksMax", "t", NULL, offsetof(Manager, user_tasks_max), SD_BUS_VTABLE_PROPERTY_CONST), - - SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetUser", "u", "o", method_get_user, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetUserByPID", "u", "o", method_get_user_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetSeat", "s", "o", method_get_seat, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListSessions", NULL, "a(susso)", method_list_sessions, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListUsers", NULL, "a(uso)", method_list_users, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListSeats", NULL, "a(so)", method_list_seats, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListInhibitors", NULL, "a(ssssuu)", method_list_inhibitors, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CreateSession", "uusssssussbssa(sv)", "soshusub", method_create_session, 0), - SD_BUS_METHOD("ReleaseSession", "s", NULL, method_release_session, 0), - SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ActivateSessionOnSeat", "ss", NULL, method_activate_session_on_seat, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("LockSession", "s", NULL, method_lock_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("UnlockSession", "s", NULL, method_lock_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("LockSessions", NULL, NULL, method_lock_sessions, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("UnlockSessions", NULL, NULL, method_lock_sessions, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("KillSession", "ssi", NULL, method_kill_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("KillUser", "ui", NULL, method_kill_user, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("TerminateSession", "s", NULL, method_terminate_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("TerminateUser", "u", NULL, method_terminate_user, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("TerminateSeat", "s", NULL, method_terminate_seat, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetUserLinger", "ubb", NULL, method_set_user_linger, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("AttachDevice", "ssb", NULL, method_attach_device, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("FlushDevices", "b", NULL, method_flush_devices, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CanReboot", NULL, "s", method_can_reboot, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ScheduleShutdown", "st", NULL, method_schedule_shutdown, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CancelScheduledShutdown", NULL, "b", method_cancel_scheduled_shutdown, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CanRebootToFirmwareSetup", NULL, "s", method_can_reboot_to_firmware_setup, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetRebootToFirmwareSetup", "b", NULL, method_set_reboot_to_firmware_setup, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetWallMessage", "sb", NULL, method_set_wall_message, SD_BUS_VTABLE_UNPRIVILEGED), - - SD_BUS_SIGNAL("SessionNew", "so", 0), - SD_BUS_SIGNAL("SessionRemoved", "so", 0), - SD_BUS_SIGNAL("UserNew", "uo", 0), - SD_BUS_SIGNAL("UserRemoved", "uo", 0), - SD_BUS_SIGNAL("SeatNew", "so", 0), - SD_BUS_SIGNAL("SeatRemoved", "so", 0), - SD_BUS_SIGNAL("PrepareForShutdown", "b", 0), - SD_BUS_SIGNAL("PrepareForSleep", "b", 0), - - SD_BUS_VTABLE_END -}; - -static int session_jobs_reply(Session *s, const char *unit, const char *result) { - int r = 0; - - assert(s); - assert(unit); - - if (!s->started) - return r; - - if (streq(result, "done")) - r = session_send_create_reply(s, NULL); - else { - _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; - - sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); - r = session_send_create_reply(s, &e); - } - - return r; -} - -int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *path, *result, *unit; - Manager *m = userdata; - Session *session; - uint32_t id; - User *user; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - - if (m->action_job && streq(m->action_job, path)) { - log_info("Operation '%s' finished.", inhibit_what_to_string(m->action_what)); - - /* Tell people that they now may take a lock again */ - send_prepare_for(m, m->action_what, false); - - m->action_job = mfree(m->action_job); - m->action_unit = NULL; - m->action_what = 0; - return 0; - } - - session = hashmap_get(m->session_units, unit); - if (session && streq_ptr(path, session->scope_job)) { - session->scope_job = mfree(session->scope_job); - session_jobs_reply(session, unit, result); - - session_save(session); - user_save(session->user); - session_add_to_gc_queue(session); - } - - user = hashmap_get(m->user_units, unit); - if (user && - (streq_ptr(path, user->service_job) || - streq_ptr(path, user->slice_job))) { - - if (streq_ptr(path, user->service_job)) - user->service_job = mfree(user->service_job); - - if (streq_ptr(path, user->slice_job)) - user->slice_job = mfree(user->slice_job); - - LIST_FOREACH(sessions_by_user, session, user->sessions) - session_jobs_reply(session, unit, result); - - user_save(user); - user_add_to_gc_queue(user); - } - - return 0; -} - -int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *path, *unit; - Manager *m = userdata; - Session *session; - User *user; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "so", &unit, &path); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - - session = hashmap_get(m->session_units, unit); - if (session) - session_add_to_gc_queue(session); - - user = hashmap_get(m->user_units, unit); - if (user) - user_add_to_gc_queue(user); - - return 0; -} - -int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *unit = NULL; - Manager *m = userdata; - const char *path; - Session *session; - User *user; - int r; - - assert(message); - assert(m); - - path = sd_bus_message_get_path(message); - if (!path) - return 0; - - r = unit_name_from_dbus_path(path, &unit); - if (r == -EINVAL) /* not a unit */ - return 0; - if (r < 0) { - log_oom(); - return 0; - } - - session = hashmap_get(m->session_units, unit); - if (session) - session_add_to_gc_queue(session); - - user = hashmap_get(m->user_units, unit); - if (user) - user_add_to_gc_queue(user); - - return 0; -} - -int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Session *session; - Iterator i; - int b, r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "b", &b); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - - if (b) - return 0; - - /* systemd finished reloading, let's recheck all our sessions */ - log_debug("System manager has been reloaded, rechecking sessions..."); - - HASHMAP_FOREACH(session, m->sessions, i) - session_add_to_gc_queue(session); - - return 0; -} - -int manager_send_changed(Manager *manager, const char *property, ...) { - char **l; - - assert(manager); - - l = strv_from_stdarg_alloca(property); - - return sd_bus_emit_properties_changed_strv( - manager->bus, - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - l); -} - -static int strdup_job(sd_bus_message *reply, char **job) { - const char *j; - char *copy; - int r; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - return 1; -} - -int manager_start_slice( - Manager *manager, - const char *slice, - const char *description, - const char *after, - const char *after2, - uint64_t tasks_max, - sd_bus_error *error, - char **job) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; - int r; - - assert(manager); - assert(slice); - assert(job); - - r = sd_bus_message_new_method_call( - manager->bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartTransientUnit"); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "ss", strempty(slice), "fail"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(m, 'a', "(sv)"); - if (r < 0) - return r; - - if (!isempty(description)) { - r = sd_bus_message_append(m, "(sv)", "Description", "s", description); - if (r < 0) - return r; - } - - if (!isempty(after)) { - r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after); - if (r < 0) - return r; - } - - if (!isempty(after2)) { - r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2); - if (r < 0) - return r; - } - - r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max); - if (r < 0) - return r; - - r = sd_bus_message_close_container(m); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "a(sa(sv))", 0); - if (r < 0) - return r; - - r = sd_bus_call(manager->bus, m, 0, error, &reply); - if (r < 0) - return r; - - return strdup_job(reply, job); -} - -int manager_start_scope( - Manager *manager, - const char *scope, - pid_t pid, - const char *slice, - const char *description, - const char *after, - const char *after2, - uint64_t tasks_max, - sd_bus_error *error, - char **job) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; - int r; - - assert(manager); - assert(scope); - assert(pid > 1); - assert(job); - - r = sd_bus_message_new_method_call( - manager->bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartTransientUnit"); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "ss", strempty(scope), "fail"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(m, 'a', "(sv)"); - if (r < 0) - return r; - - if (!isempty(slice)) { - r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice); - if (r < 0) - return r; - } - - if (!isempty(description)) { - r = sd_bus_message_append(m, "(sv)", "Description", "s", description); - if (r < 0) - return r; - } - - if (!isempty(after)) { - r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after); - if (r < 0) - return r; - } - - if (!isempty(after2)) { - r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2); - if (r < 0) - return r; - } - - /* cgroup empty notification is not available in containers - * currently. To make this less problematic, let's shorten the - * stop timeout for sessions, so that we don't wait - * forever. */ - - /* Make sure that the session shells are terminated with - * SIGHUP since bash and friends tend to ignore SIGTERM */ - r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max); - if (r < 0) - return r; - - r = sd_bus_message_close_container(m); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "a(sa(sv))", 0); - if (r < 0) - return r; - - r = sd_bus_call(manager->bus, m, 0, error, &reply); - if (r < 0) - return r; - - return strdup_job(reply, job); -} - -int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - int r; - - assert(manager); - assert(unit); - assert(job); - - r = sd_bus_call_method( - manager->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - error, - &reply, - "ss", unit, "replace"); - if (r < 0) - return r; - - return strdup_job(reply, job); -} - -int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - int r; - - assert(manager); - assert(unit); - assert(job); - - r = sd_bus_call_method( - manager->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StopUnit", - error, - &reply, - "ss", unit, "fail"); - if (r < 0) { - if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || - sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) { - - *job = NULL; - sd_bus_error_free(error); - return 0; - } - - return r; - } - - return strdup_job(reply, job); -} - -int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) { - _cleanup_free_ char *path = NULL; - int r; - - assert(manager); - assert(scope); - - path = unit_dbus_path_from_name(scope); - if (!path) - return -ENOMEM; - - r = sd_bus_call_method( - manager->bus, - "org.freedesktop.systemd1", - path, - "org.freedesktop.systemd1.Scope", - "Abandon", - error, - NULL, - NULL); - if (r < 0) { - if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || - sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED) || - sd_bus_error_has_name(error, BUS_ERROR_SCOPE_NOT_RUNNING)) { - sd_bus_error_free(error); - return 0; - } - - return r; - } - - return 1; -} - -int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) { - assert(manager); - assert(unit); - - return sd_bus_call_method( - manager->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "KillUnit", - error, - NULL, - "ssi", unit, who == KILL_LEADER ? "main" : "all", signo); -} - -int manager_unit_is_active(Manager *manager, const char *unit) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *path = NULL; - const char *state; - int r; - - assert(manager); - assert(unit); - - path = unit_dbus_path_from_name(unit); - if (!path) - return -ENOMEM; - - r = sd_bus_get_property( - manager->bus, - "org.freedesktop.systemd1", - path, - "org.freedesktop.systemd1.Unit", - "ActiveState", - &error, - &reply, - "s"); - if (r < 0) { - /* systemd might have droppped off momentarily, let's - * not make this an error */ - if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || - sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) - return true; - - /* If the unit is already unloaded then it's not - * active */ - if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) || - sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED)) - return false; - - return r; - } - - r = sd_bus_message_read(reply, "s", &state); - if (r < 0) - return -EINVAL; - - return !streq(state, "inactive") && !streq(state, "failed"); -} - -int manager_job_is_active(Manager *manager, const char *path) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - int r; - - assert(manager); - assert(path); - - r = sd_bus_get_property( - manager->bus, - "org.freedesktop.systemd1", - path, - "org.freedesktop.systemd1.Job", - "State", - &error, - &reply, - "s"); - if (r < 0) { - if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || - sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) - return true; - - if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT)) - return false; - - return r; - } - - /* We don't actually care about the state really. The fact - * that we could read the job state is enough for us */ - - return true; -} diff --git a/src/grp-login/liblogind-core/logind-device.c b/src/grp-login/liblogind-core/logind-device.c deleted file mode 100644 index 6165a9ea6e..0000000000 --- a/src/grp-login/liblogind-core/logind-device.c +++ /dev/null @@ -1,125 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <string.h> - -#include "basic/alloc-util.h" -#include "basic/util.h" - -#include "logind-device.h" - -Device* device_new(Manager *m, const char *sysfs, bool master) { - Device *d; - - assert(m); - assert(sysfs); - - d = new0(Device, 1); - if (!d) - return NULL; - - d->sysfs = strdup(sysfs); - if (!d->sysfs) { - free(d); - return NULL; - } - - if (hashmap_put(m->devices, d->sysfs, d) < 0) { - free(d->sysfs); - free(d); - return NULL; - } - - d->manager = m; - d->master = master; - dual_timestamp_get(&d->timestamp); - - return d; -} - -static void device_detach(Device *d) { - Seat *s; - SessionDevice *sd; - - assert(d); - - if (!d->seat) - return; - - while ((sd = d->session_devices)) - session_device_free(sd); - - s = d->seat; - LIST_REMOVE(devices, d->seat->devices, d); - d->seat = NULL; - - if (!seat_has_master_device(s)) { - seat_add_to_gc_queue(s); - seat_send_changed(s, "CanGraphical", NULL); - } -} - -void device_free(Device *d) { - assert(d); - - device_detach(d); - - hashmap_remove(d->manager->devices, d->sysfs); - - free(d->sysfs); - free(d); -} - -void device_attach(Device *d, Seat *s) { - Device *i; - bool had_master; - - assert(d); - assert(s); - - if (d->seat == s) - return; - - if (d->seat) - device_detach(d); - - d->seat = s; - had_master = seat_has_master_device(s); - - /* We keep the device list sorted by the "master" flag. That is, master - * devices are at the front, other devices at the tail. As there is no - * way to easily add devices at the list-tail, we need to iterate the - * list to find the first non-master device when adding non-master - * devices. We assume there is only a few (normally 1) master devices - * per seat, so we iterate only a few times. */ - - if (d->master || !s->devices) - LIST_PREPEND(devices, s->devices, d); - else { - LIST_FOREACH(devices, i, s->devices) { - if (!i->devices_next || !i->master) { - LIST_INSERT_AFTER(devices, s->devices, i, d); - break; - } - } - } - - if (!had_master && d->master) - seat_send_changed(s, "CanGraphical", NULL); -} diff --git a/src/grp-login/liblogind-core/logind-device.h b/src/grp-login/liblogind-core/logind-device.h deleted file mode 100644 index 9e2678d801..0000000000 --- a/src/grp-login/liblogind-core/logind-device.h +++ /dev/null @@ -1,44 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "basic/list.h" - -typedef struct Device Device; - -#include "logind-seat.h" -#include "logind-session-device.h" - -struct Device { - Manager *manager; - - char *sysfs; - Seat *seat; - bool master; - - dual_timestamp timestamp; - - LIST_FIELDS(struct Device, devices); - LIST_HEAD(SessionDevice, session_devices); -}; - -Device* device_new(Manager *m, const char *sysfs, bool master); -void device_free(Device *d); -void device_attach(Device *d, Seat *s); diff --git a/src/grp-login/liblogind-core/logind-gperf.gperf b/src/grp-login/liblogind-core/logind-gperf.gperf deleted file mode 100644 index 6d5c484439..0000000000 --- a/src/grp-login/liblogind-core/logind-gperf.gperf +++ /dev/null @@ -1,39 +0,0 @@ -%{ -#include <stddef.h> -#include "shared/conf-parser.h" -#include "logind.h" -%} -struct ConfigPerfItem; -%null_strings -%language=ANSI-C -%define slot-name section_and_lvalue -%define hash-function-name logind_gperf_hash -%define lookup-function-name logind_gperf_lookup -%readonly-tables -%omit-struct-type -%struct-type -%includes -%% -Login.NAutoVTs, config_parse_unsigned, 0, offsetof(Manager, n_autovts) -Login.ReserveVT, config_parse_unsigned, 0, offsetof(Manager, reserve_vt) -Login.KillUserProcesses, config_parse_bool, 0, offsetof(Manager, kill_user_processes) -Login.KillOnlyUsers, config_parse_strv, 0, offsetof(Manager, kill_only_users) -Login.KillExcludeUsers, config_parse_strv, 0, offsetof(Manager, kill_exclude_users) -Login.InhibitDelayMaxSec, config_parse_sec, 0, offsetof(Manager, inhibit_delay_max) -Login.HandlePowerKey, config_parse_handle_action, 0, offsetof(Manager, handle_power_key) -Login.HandleSuspendKey, config_parse_handle_action, 0, offsetof(Manager, handle_suspend_key) -Login.HandleHibernateKey, config_parse_handle_action, 0, offsetof(Manager, handle_hibernate_key) -Login.HandleLidSwitch, config_parse_handle_action, 0, offsetof(Manager, handle_lid_switch) -Login.HandleLidSwitchDocked, config_parse_handle_action, 0, offsetof(Manager, handle_lid_switch_docked) -Login.PowerKeyIgnoreInhibited, config_parse_bool, 0, offsetof(Manager, power_key_ignore_inhibited) -Login.SuspendKeyIgnoreInhibited, config_parse_bool, 0, offsetof(Manager, suspend_key_ignore_inhibited) -Login.HibernateKeyIgnoreInhibited, config_parse_bool, 0, offsetof(Manager, hibernate_key_ignore_inhibited) -Login.LidSwitchIgnoreInhibited, config_parse_bool, 0, offsetof(Manager, lid_switch_ignore_inhibited) -Login.HoldoffTimeoutSec, config_parse_sec, 0, offsetof(Manager, holdoff_timeout_usec) -Login.IdleAction, config_parse_handle_action, 0, offsetof(Manager, idle_action) -Login.IdleActionSec, config_parse_sec, 0, offsetof(Manager, idle_action_usec) -Login.RuntimeDirectorySize, config_parse_tmpfs_size, 0, offsetof(Manager, runtime_dir_size) -Login.RemoveIPC, config_parse_bool, 0, offsetof(Manager, remove_ipc) -Login.InhibitorsMax, config_parse_uint64, 0, offsetof(Manager, inhibitors_max) -Login.SessionsMax, config_parse_uint64, 0, offsetof(Manager, sessions_max) -Login.UserTasksMax, config_parse_uint64, 0, offsetof(Manager, user_tasks_max) diff --git a/src/grp-login/liblogind-core/logind-inhibit.c b/src/grp-login/liblogind-core/logind-inhibit.c deleted file mode 100644 index 8a35db0dc8..0000000000 --- a/src/grp-login/liblogind-core/logind-inhibit.c +++ /dev/null @@ -1,486 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <string.h> -#include <unistd.h> - -#include "basic/alloc-util.h" -#include "basic/escape.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/mkdir.h" -#include "basic/parse-util.h" -#include "basic/string-table.h" -#include "basic/string-util.h" -#include "basic/user-util.h" -#include "basic/util.h" - -#include "logind-inhibit.h" - -Inhibitor* inhibitor_new(Manager *m, const char* id) { - Inhibitor *i; - - assert(m); - - i = new0(Inhibitor, 1); - if (!i) - return NULL; - - i->state_file = strappend("/run/systemd/inhibit/", id); - if (!i->state_file) { - free(i); - return NULL; - } - - i->id = basename(i->state_file); - - if (hashmap_put(m->inhibitors, i->id, i) < 0) { - free(i->state_file); - free(i); - return NULL; - } - - i->manager = m; - i->fifo_fd = -1; - - return i; -} - -void inhibitor_free(Inhibitor *i) { - assert(i); - - hashmap_remove(i->manager->inhibitors, i->id); - - inhibitor_remove_fifo(i); - - free(i->who); - free(i->why); - - if (i->state_file) { - unlink(i->state_file); - free(i->state_file); - } - - free(i); -} - -int inhibitor_save(Inhibitor *i) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(i); - - r = mkdir_safe_label("/run/systemd/inhibit", 0755, 0, 0); - if (r < 0) - goto fail; - - r = fopen_temporary(i->state_file, &f, &temp_path); - if (r < 0) - goto fail; - - fchmod(fileno(f), 0644); - - fprintf(f, - "# This is private data. Do not parse.\n" - "WHAT=%s\n" - "MODE=%s\n" - "UID="UID_FMT"\n" - "PID="PID_FMT"\n", - inhibit_what_to_string(i->what), - inhibit_mode_to_string(i->mode), - i->uid, - i->pid); - - if (i->who) { - _cleanup_free_ char *cc = NULL; - - cc = cescape(i->who); - if (!cc) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "WHO=%s\n", cc); - } - - if (i->why) { - _cleanup_free_ char *cc = NULL; - - cc = cescape(i->why); - if (!cc) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "WHY=%s\n", cc); - } - - if (i->fifo_path) - fprintf(f, "FIFO=%s\n", i->fifo_path); - - r = fflush_and_check(f); - if (r < 0) - goto fail; - - if (rename(temp_path, i->state_file) < 0) { - r = -errno; - goto fail; - } - - return 0; - -fail: - (void) unlink(i->state_file); - - if (temp_path) - (void) unlink(temp_path); - - return log_error_errno(r, "Failed to save inhibit data %s: %m", i->state_file); -} - -int inhibitor_start(Inhibitor *i) { - assert(i); - - if (i->started) - return 0; - - dual_timestamp_get(&i->since); - - log_debug("Inhibitor %s (%s) pid="PID_FMT" uid="UID_FMT" mode=%s started.", - strna(i->who), strna(i->why), - i->pid, i->uid, - inhibit_mode_to_string(i->mode)); - - inhibitor_save(i); - - i->started = true; - - manager_send_changed(i->manager, i->mode == INHIBIT_BLOCK ? "BlockInhibited" : "DelayInhibited", NULL); - - return 0; -} - -int inhibitor_stop(Inhibitor *i) { - assert(i); - - if (i->started) - log_debug("Inhibitor %s (%s) pid="PID_FMT" uid="UID_FMT" mode=%s stopped.", - strna(i->who), strna(i->why), - i->pid, i->uid, - inhibit_mode_to_string(i->mode)); - - if (i->state_file) - unlink(i->state_file); - - i->started = false; - - manager_send_changed(i->manager, i->mode == INHIBIT_BLOCK ? "BlockInhibited" : "DelayInhibited", NULL); - - return 0; -} - -int inhibitor_load(Inhibitor *i) { - - _cleanup_free_ char - *what = NULL, - *uid = NULL, - *pid = NULL, - *who = NULL, - *why = NULL, - *mode = NULL; - - InhibitWhat w; - InhibitMode mm; - char *cc; - int r; - - r = parse_env_file(i->state_file, NEWLINE, - "WHAT", &what, - "UID", &uid, - "PID", &pid, - "WHO", &who, - "WHY", &why, - "MODE", &mode, - "FIFO", &i->fifo_path, - NULL); - if (r < 0) - return r; - - w = what ? inhibit_what_from_string(what) : 0; - if (w >= 0) - i->what = w; - - mm = mode ? inhibit_mode_from_string(mode) : INHIBIT_BLOCK; - if (mm >= 0) - i->mode = mm; - - if (uid) { - r = parse_uid(uid, &i->uid); - if (r < 0) - return r; - } - - if (pid) { - r = parse_pid(pid, &i->pid); - if (r < 0) - return r; - } - - if (who) { - r = cunescape(who, 0, &cc); - if (r < 0) - return r; - - free(i->who); - i->who = cc; - } - - if (why) { - r = cunescape(why, 0, &cc); - if (r < 0) - return r; - - free(i->why); - i->why = cc; - } - - if (i->fifo_path) { - int fd; - - fd = inhibitor_create_fifo(i); - safe_close(fd); - } - - return 0; -} - -static int inhibitor_dispatch_fifo(sd_event_source *s, int fd, uint32_t revents, void *userdata) { - Inhibitor *i = userdata; - - assert(s); - assert(fd == i->fifo_fd); - assert(i); - - inhibitor_stop(i); - inhibitor_free(i); - - return 0; -} - -int inhibitor_create_fifo(Inhibitor *i) { - int r; - - assert(i); - - /* Create FIFO */ - if (!i->fifo_path) { - r = mkdir_safe_label("/run/systemd/inhibit", 0755, 0, 0); - if (r < 0) - return r; - - i->fifo_path = strjoin("/run/systemd/inhibit/", i->id, ".ref", NULL); - if (!i->fifo_path) - return -ENOMEM; - - if (mkfifo(i->fifo_path, 0600) < 0 && errno != EEXIST) - return -errno; - } - - /* Open reading side */ - if (i->fifo_fd < 0) { - i->fifo_fd = open(i->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY); - if (i->fifo_fd < 0) - return -errno; - } - - if (!i->event_source) { - r = sd_event_add_io(i->manager->event, &i->event_source, i->fifo_fd, 0, inhibitor_dispatch_fifo, i); - if (r < 0) - return r; - - r = sd_event_source_set_priority(i->event_source, SD_EVENT_PRIORITY_IDLE-10); - if (r < 0) - return r; - } - - /* Open writing side */ - r = open(i->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY); - if (r < 0) - return -errno; - - return r; -} - -void inhibitor_remove_fifo(Inhibitor *i) { - assert(i); - - i->event_source = sd_event_source_unref(i->event_source); - i->fifo_fd = safe_close(i->fifo_fd); - - if (i->fifo_path) { - unlink(i->fifo_path); - i->fifo_path = mfree(i->fifo_path); - } -} - -InhibitWhat manager_inhibit_what(Manager *m, InhibitMode mm) { - Inhibitor *i; - Iterator j; - InhibitWhat what = 0; - - assert(m); - - HASHMAP_FOREACH(i, m->inhibitors, j) - if (i->mode == mm) - what |= i->what; - - return what; -} - -static int pid_is_active(Manager *m, pid_t pid) { - Session *s; - int r; - - r = manager_get_session_by_pid(m, pid, &s); - if (r < 0) - return r; - - /* If there's no session assigned to it, then it's globally - * active on all ttys */ - if (r == 0) - return 1; - - return session_is_active(s); -} - -bool manager_is_inhibited( - Manager *m, - InhibitWhat w, - InhibitMode mm, - dual_timestamp *since, - bool ignore_inactive, - bool ignore_uid, - uid_t uid, - Inhibitor **offending) { - - Inhibitor *i; - Iterator j; - struct dual_timestamp ts = DUAL_TIMESTAMP_NULL; - bool inhibited = false; - - assert(m); - assert(w > 0 && w < _INHIBIT_WHAT_MAX); - - HASHMAP_FOREACH(i, m->inhibitors, j) { - if (!(i->what & w)) - continue; - - if (i->mode != mm) - continue; - - if (ignore_inactive && pid_is_active(m, i->pid) <= 0) - continue; - - if (ignore_uid && i->uid == uid) - continue; - - if (!inhibited || - i->since.monotonic < ts.monotonic) - ts = i->since; - - inhibited = true; - - if (offending) - *offending = i; - } - - if (since) - *since = ts; - - return inhibited; -} - -const char *inhibit_what_to_string(InhibitWhat w) { - static thread_local char buffer[97]; - char *p; - - if (w < 0 || w >= _INHIBIT_WHAT_MAX) - return NULL; - - p = buffer; - if (w & INHIBIT_SHUTDOWN) - p = stpcpy(p, "shutdown:"); - if (w & INHIBIT_SLEEP) - p = stpcpy(p, "sleep:"); - if (w & INHIBIT_IDLE) - p = stpcpy(p, "idle:"); - if (w & INHIBIT_HANDLE_POWER_KEY) - p = stpcpy(p, "handle-power-key:"); - if (w & INHIBIT_HANDLE_SUSPEND_KEY) - p = stpcpy(p, "handle-suspend-key:"); - if (w & INHIBIT_HANDLE_HIBERNATE_KEY) - p = stpcpy(p, "handle-hibernate-key:"); - if (w & INHIBIT_HANDLE_LID_SWITCH) - p = stpcpy(p, "handle-lid-switch:"); - - if (p > buffer) - *(p-1) = 0; - else - *p = 0; - - return buffer; -} - -InhibitWhat inhibit_what_from_string(const char *s) { - InhibitWhat what = 0; - const char *word, *state; - size_t l; - - FOREACH_WORD_SEPARATOR(word, l, s, ":", state) { - if (l == 8 && strneq(word, "shutdown", l)) - what |= INHIBIT_SHUTDOWN; - else if (l == 5 && strneq(word, "sleep", l)) - what |= INHIBIT_SLEEP; - else if (l == 4 && strneq(word, "idle", l)) - what |= INHIBIT_IDLE; - else if (l == 16 && strneq(word, "handle-power-key", l)) - what |= INHIBIT_HANDLE_POWER_KEY; - else if (l == 18 && strneq(word, "handle-suspend-key", l)) - what |= INHIBIT_HANDLE_SUSPEND_KEY; - else if (l == 20 && strneq(word, "handle-hibernate-key", l)) - what |= INHIBIT_HANDLE_HIBERNATE_KEY; - else if (l == 17 && strneq(word, "handle-lid-switch", l)) - what |= INHIBIT_HANDLE_LID_SWITCH; - else - return _INHIBIT_WHAT_INVALID; - } - - return what; -} - -static const char* const inhibit_mode_table[_INHIBIT_MODE_MAX] = { - [INHIBIT_BLOCK] = "block", - [INHIBIT_DELAY] = "delay" -}; - -DEFINE_STRING_TABLE_LOOKUP(inhibit_mode, InhibitMode); diff --git a/src/grp-login/liblogind-core/logind-inhibit.h b/src/grp-login/liblogind-core/logind-inhibit.h deleted file mode 100644 index 70de199c60..0000000000 --- a/src/grp-login/liblogind-core/logind-inhibit.h +++ /dev/null @@ -1,89 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -typedef struct Inhibitor Inhibitor; - - -typedef enum InhibitWhat { - INHIBIT_SHUTDOWN = 1, - INHIBIT_SLEEP = 2, - INHIBIT_IDLE = 4, - INHIBIT_HANDLE_POWER_KEY = 8, - INHIBIT_HANDLE_SUSPEND_KEY = 16, - INHIBIT_HANDLE_HIBERNATE_KEY = 32, - INHIBIT_HANDLE_LID_SWITCH = 64, - _INHIBIT_WHAT_MAX = 128, - _INHIBIT_WHAT_INVALID = -1 -} InhibitWhat; - -typedef enum InhibitMode { - INHIBIT_BLOCK, - INHIBIT_DELAY, - _INHIBIT_MODE_MAX, - _INHIBIT_MODE_INVALID = -1 -} InhibitMode; - -#include "logind.h" - -struct Inhibitor { - Manager *manager; - - sd_event_source *event_source; - - char *id; - char *state_file; - - bool started; - - InhibitWhat what; - char *who; - char *why; - InhibitMode mode; - - pid_t pid; - uid_t uid; - - dual_timestamp since; - - char *fifo_path; - int fifo_fd; -}; - -Inhibitor* inhibitor_new(Manager *m, const char *id); -void inhibitor_free(Inhibitor *i); - -int inhibitor_save(Inhibitor *i); -int inhibitor_load(Inhibitor *i); - -int inhibitor_start(Inhibitor *i); -int inhibitor_stop(Inhibitor *i); - -int inhibitor_create_fifo(Inhibitor *i); -void inhibitor_remove_fifo(Inhibitor *i); - -InhibitWhat manager_inhibit_what(Manager *m, InhibitMode mm); -bool manager_is_inhibited(Manager *m, InhibitWhat w, InhibitMode mm, dual_timestamp *since, bool ignore_inactive, bool ignore_uid, uid_t uid, Inhibitor **offending); - -const char *inhibit_what_to_string(InhibitWhat k); -InhibitWhat inhibit_what_from_string(const char *s); - -const char *inhibit_mode_to_string(InhibitMode k); -InhibitMode inhibit_mode_from_string(const char *s); diff --git a/src/grp-login/liblogind-core/logind-seat-dbus.c b/src/grp-login/liblogind-core/logind-seat-dbus.c deleted file mode 100644 index fbebe6fcff..0000000000 --- a/src/grp-login/liblogind-core/logind-seat-dbus.c +++ /dev/null @@ -1,475 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> - -#include "basic/alloc-util.h" -#include "basic/bus-label.h" -#include "basic/strv.h" -#include "basic/user-util.h" -#include "basic/util.h" -#include "logind.h" -#include "sd-bus/bus-common-errors.h" -#include "shared/bus-util.h" - -#include "logind-seat.h" - -static int property_get_active_session( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_free_ char *p = NULL; - Seat *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - p = s->active ? session_bus_path(s->active) : strdup("/"); - if (!p) - return -ENOMEM; - - return sd_bus_message_append(reply, "(so)", s->active ? s->active->id : "", p); -} - -static int property_get_can_multi_session( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Seat *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", seat_can_multi_session(s)); -} - -static int property_get_can_tty( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Seat *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", seat_can_tty(s)); -} - -static int property_get_can_graphical( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Seat *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", seat_can_graphical(s)); -} - -static int property_get_sessions( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Seat *s = userdata; - Session *session; - int r; - - assert(bus); - assert(reply); - assert(s); - - r = sd_bus_message_open_container(reply, 'a', "(so)"); - if (r < 0) - return r; - - LIST_FOREACH(sessions_by_seat, session, s->sessions) { - _cleanup_free_ char *p = NULL; - - p = session_bus_path(session); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(so)", session->id, p); - if (r < 0) - return r; - - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return 1; -} - -static int property_get_idle_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Seat *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", seat_get_idle_hint(s, NULL) > 0); -} - -static int property_get_idle_since_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Seat *s = userdata; - dual_timestamp t; - uint64_t u; - int r; - - assert(bus); - assert(reply); - assert(s); - - r = seat_get_idle_hint(s, &t); - if (r < 0) - return r; - - u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; - - return sd_bus_message_append(reply, "t", u); -} - -int bus_seat_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Seat *s = userdata; - int r; - - assert(message); - assert(s); - - r = bus_verify_polkit_async( - message, - CAP_KILL, - "org.freedesktop.login1.manage", - NULL, - false, - UID_INVALID, - &s->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = seat_stop_sessions(s, true); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Seat *s = userdata; - const char *name; - Session *session; - int r; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - session = hashmap_get(s->manager->sessions, name); - if (!session) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); - - if (session->seat != s) - return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id); - - r = session_activate(session); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_switch_to(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Seat *s = userdata; - unsigned int to; - int r; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "u", &to); - if (r < 0) - return r; - - if (to <= 0) - return -EINVAL; - - r = seat_switch_to(s, to); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_switch_to_next(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Seat *s = userdata; - int r; - - assert(message); - assert(s); - - r = seat_switch_to_next(s); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_switch_to_previous(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Seat *s = userdata; - int r; - - assert(message); - assert(s); - - r = seat_switch_to_previous(s); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -const sd_bus_vtable seat_vtable[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, 0), - SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - - SD_BUS_METHOD("Terminate", NULL, NULL, bus_seat_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SwitchTo", "u", NULL, method_switch_to, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SwitchToNext", NULL, NULL, method_switch_to_next, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SwitchToPrevious", NULL, NULL, method_switch_to_previous, SD_BUS_VTABLE_UNPRIVILEGED), - - SD_BUS_VTABLE_END -}; - -int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { - Manager *m = userdata; - Seat *seat; - int r; - - assert(bus); - assert(path); - assert(interface); - assert(found); - assert(m); - - if (streq(path, "/org/freedesktop/login1/seat/self")) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - sd_bus_message *message; - Session *session; - const char *name; - - message = sd_bus_get_current_message(bus); - if (!message) - return 0; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_session(creds, &name); - if (r < 0) - return r; - - session = hashmap_get(m->sessions, name); - if (!session) - return 0; - - seat = session->seat; - } else { - _cleanup_free_ char *e = NULL; - const char *p; - - p = startswith(path, "/org/freedesktop/login1/seat/"); - if (!p) - return 0; - - e = bus_label_unescape(p); - if (!e) - return -ENOMEM; - - seat = hashmap_get(m->seats, e); - } - - if (!seat) - return 0; - - *found = seat; - return 1; -} - -char *seat_bus_path(Seat *s) { - _cleanup_free_ char *t = NULL; - - assert(s); - - t = bus_label_escape(s->id); - if (!t) - return NULL; - - return strappend("/org/freedesktop/login1/seat/", t); -} - -int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { - _cleanup_strv_free_ char **l = NULL; - sd_bus_message *message; - Manager *m = userdata; - Seat *seat; - Iterator i; - int r; - - assert(bus); - assert(path); - assert(nodes); - - HASHMAP_FOREACH(seat, m->seats, i) { - char *p; - - p = seat_bus_path(seat); - if (!p) - return -ENOMEM; - - r = strv_consume(&l, p); - if (r < 0) - return r; - } - - message = sd_bus_get_current_message(bus); - if (message) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - const char *name; - Session *session; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds); - if (r >= 0) { - r = sd_bus_creds_get_session(creds, &name); - if (r >= 0) { - session = hashmap_get(m->sessions, name); - if (session && session->seat) { - r = strv_extend(&l, "/org/freedesktop/login1/seat/self"); - if (r < 0) - return r; - } - } - } - } - - *nodes = l; - l = NULL; - - return 1; -} - -int seat_send_signal(Seat *s, bool new_seat) { - _cleanup_free_ char *p = NULL; - - assert(s); - - p = seat_bus_path(s); - if (!p) - return -ENOMEM; - - return sd_bus_emit_signal( - s->manager->bus, - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - new_seat ? "SeatNew" : "SeatRemoved", - "so", s->id, p); -} - -int seat_send_changed(Seat *s, const char *properties, ...) { - _cleanup_free_ char *p = NULL; - char **l; - - assert(s); - - if (!s->started) - return 0; - - p = seat_bus_path(s); - if (!p) - return -ENOMEM; - - l = strv_from_stdarg_alloca(properties); - - return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Seat", l); -} diff --git a/src/grp-login/liblogind-core/logind-seat.c b/src/grp-login/liblogind-core/logind-seat.c deleted file mode 100644 index 6525ad5d7b..0000000000 --- a/src/grp-login/liblogind-core/logind-seat.c +++ /dev/null @@ -1,696 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <string.h> -#include <unistd.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/mkdir.h" -#include "basic/parse-util.h" -#include "basic/stdio-util.h" -#include "basic/string-util.h" -#include "basic/terminal-util.h" -#include "basic/util.h" - -#include "logind-acl.h" -#include "logind-seat.h" - -Seat *seat_new(Manager *m, const char *id) { - Seat *s; - - assert(m); - assert(id); - - s = new0(Seat, 1); - if (!s) - return NULL; - - s->state_file = strappend("/run/systemd/seats/", id); - if (!s->state_file) { - free(s); - return NULL; - } - - s->id = basename(s->state_file); - s->manager = m; - - if (hashmap_put(m->seats, s->id, s) < 0) { - free(s->state_file); - free(s); - return NULL; - } - - return s; -} - -void seat_free(Seat *s) { - assert(s); - - if (s->in_gc_queue) - LIST_REMOVE(gc_queue, s->manager->seat_gc_queue, s); - - while (s->sessions) - session_free(s->sessions); - - assert(!s->active); - - while (s->devices) - device_free(s->devices); - - hashmap_remove(s->manager->seats, s->id); - - free(s->positions); - free(s->state_file); - free(s); -} - -int seat_save(Seat *s) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(s); - - if (!s->started) - return 0; - - r = mkdir_safe_label("/run/systemd/seats", 0755, 0, 0); - if (r < 0) - goto fail; - - r = fopen_temporary(s->state_file, &f, &temp_path); - if (r < 0) - goto fail; - - fchmod(fileno(f), 0644); - - fprintf(f, - "# This is private data. Do not parse.\n" - "IS_SEAT0=%i\n" - "CAN_MULTI_SESSION=%i\n" - "CAN_TTY=%i\n" - "CAN_GRAPHICAL=%i\n", - seat_is_seat0(s), - seat_can_multi_session(s), - seat_can_tty(s), - seat_can_graphical(s)); - - if (s->active) { - assert(s->active->user); - - fprintf(f, - "ACTIVE=%s\n" - "ACTIVE_UID="UID_FMT"\n", - s->active->id, - s->active->user->uid); - } - - if (s->sessions) { - Session *i; - - fputs("SESSIONS=", f); - LIST_FOREACH(sessions_by_seat, i, s->sessions) { - fprintf(f, - "%s%c", - i->id, - i->sessions_by_seat_next ? ' ' : '\n'); - } - - fputs("UIDS=", f); - LIST_FOREACH(sessions_by_seat, i, s->sessions) - fprintf(f, - UID_FMT"%c", - i->user->uid, - i->sessions_by_seat_next ? ' ' : '\n'); - } - - r = fflush_and_check(f); - if (r < 0) - goto fail; - - if (rename(temp_path, s->state_file) < 0) { - r = -errno; - goto fail; - } - - return 0; - -fail: - (void) unlink(s->state_file); - - if (temp_path) - (void) unlink(temp_path); - - return log_error_errno(r, "Failed to save seat data %s: %m", s->state_file); -} - -int seat_load(Seat *s) { - assert(s); - - /* There isn't actually anything to read here ... */ - - return 0; -} - -static int vt_allocate(unsigned int vtnr) { - char p[sizeof("/dev/tty") + DECIMAL_STR_MAX(unsigned int)]; - _cleanup_close_ int fd = -1; - - assert(vtnr >= 1); - - xsprintf(p, "/dev/tty%u", vtnr); - fd = open_terminal(p, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return -errno; - - return 0; -} - -int seat_preallocate_vts(Seat *s) { - int r = 0; - unsigned i; - - assert(s); - assert(s->manager); - - log_debug("Preallocating VTs..."); - - if (s->manager->n_autovts <= 0) - return 0; - - if (!seat_has_vts(s)) - return 0; - - for (i = 1; i <= s->manager->n_autovts; i++) { - int q; - - q = vt_allocate(i); - if (q < 0) { - log_error_errno(q, "Failed to preallocate VT %u: %m", i); - r = q; - } - } - - return r; -} - -int seat_apply_acls(Seat *s, Session *old_active) { - int r; - - assert(s); - - r = devnode_acl_all(s->manager->udev, - s->id, - false, - !!old_active, old_active ? old_active->user->uid : 0, - !!s->active, s->active ? s->active->user->uid : 0); - - if (r < 0) - log_error_errno(r, "Failed to apply ACLs: %m"); - - return r; -} - -int seat_set_active(Seat *s, Session *session) { - Session *old_active; - - assert(s); - assert(!session || session->seat == s); - - if (session == s->active) - return 0; - - old_active = s->active; - s->active = session; - - if (old_active) { - session_device_pause_all(old_active); - session_send_changed(old_active, "Active", NULL); - } - - seat_apply_acls(s, old_active); - - if (session && session->started) { - session_send_changed(session, "Active", NULL); - session_device_resume_all(session); - } - - if (!session || session->started) - seat_send_changed(s, "ActiveSession", NULL); - - seat_save(s); - - if (session) { - session_save(session); - user_save(session->user); - } - - if (old_active) { - session_save(old_active); - if (!session || session->user != old_active->user) - user_save(old_active->user); - } - - return 0; -} - -int seat_switch_to(Seat *s, unsigned int num) { - /* Public session positions skip 0 (there is only F1-F12). Maybe it - * will get reassigned in the future, so return error for now. */ - if (num == 0) - return -EINVAL; - - if (num >= s->position_count || !s->positions[num]) { - /* allow switching to unused VTs to trigger auto-activate */ - if (seat_has_vts(s) && num < 64) - return chvt(num); - - return -EINVAL; - } - - return session_activate(s->positions[num]); -} - -int seat_switch_to_next(Seat *s) { - unsigned int start, i; - - if (s->position_count == 0) - return -EINVAL; - - start = 1; - if (s->active && s->active->position > 0) - start = s->active->position; - - for (i = start + 1; i < s->position_count; ++i) - if (s->positions[i]) - return session_activate(s->positions[i]); - - for (i = 1; i < start; ++i) - if (s->positions[i]) - return session_activate(s->positions[i]); - - return -EINVAL; -} - -int seat_switch_to_previous(Seat *s) { - unsigned int start, i; - - if (s->position_count == 0) - return -EINVAL; - - start = 1; - if (s->active && s->active->position > 0) - start = s->active->position; - - for (i = start - 1; i > 0; --i) - if (s->positions[i]) - return session_activate(s->positions[i]); - - for (i = s->position_count - 1; i > start; --i) - if (s->positions[i]) - return session_activate(s->positions[i]); - - return -EINVAL; -} - -int seat_active_vt_changed(Seat *s, unsigned int vtnr) { - Session *i, *new_active = NULL; - int r; - - assert(s); - assert(vtnr >= 1); - - if (!seat_has_vts(s)) - return -EINVAL; - - log_debug("VT changed to %u", vtnr); - - /* we might have earlier closing sessions on the same VT, so try to - * find a running one first */ - LIST_FOREACH(sessions_by_seat, i, s->sessions) - if (i->vtnr == vtnr && !i->stopping) { - new_active = i; - break; - } - - if (!new_active) { - /* no running one? then we can't decide which one is the - * active one, let the first one win */ - LIST_FOREACH(sessions_by_seat, i, s->sessions) - if (i->vtnr == vtnr) { - new_active = i; - break; - } - } - - r = seat_set_active(s, new_active); - manager_spawn_autovt(s->manager, vtnr); - - return r; -} - -int seat_read_active_vt(Seat *s) { - char t[64]; - ssize_t k; - unsigned int vtnr; - int r; - - assert(s); - - if (!seat_has_vts(s)) - return 0; - - lseek(s->manager->console_active_fd, SEEK_SET, 0); - - k = read(s->manager->console_active_fd, t, sizeof(t)-1); - if (k <= 0) { - log_error("Failed to read current console: %s", k < 0 ? strerror(-errno) : "EOF"); - return k < 0 ? -errno : -EIO; - } - - t[k] = 0; - truncate_nl(t); - - if (!startswith(t, "tty")) { - log_error("Hm, /sys/class/tty/tty0/active is badly formatted."); - return -EIO; - } - - r = safe_atou(t+3, &vtnr); - if (r < 0) { - log_error("Failed to parse VT number %s", t+3); - return r; - } - - if (!vtnr) { - log_error("VT number invalid: %s", t+3); - return -EIO; - } - - return seat_active_vt_changed(s, vtnr); -} - -int seat_start(Seat *s) { - assert(s); - - if (s->started) - return 0; - - log_struct(LOG_INFO, - LOG_MESSAGE_ID(SD_MESSAGE_SEAT_START), - "SEAT_ID=%s", s->id, - LOG_MESSAGE("New seat %s.", s->id), - NULL); - - /* Initialize VT magic stuff */ - seat_preallocate_vts(s); - - /* Read current VT */ - seat_read_active_vt(s); - - s->started = true; - - /* Save seat data */ - seat_save(s); - - seat_send_signal(s, true); - - return 0; -} - -int seat_stop(Seat *s, bool force) { - int r = 0; - - assert(s); - - if (s->started) - log_struct(LOG_INFO, - LOG_MESSAGE_ID(SD_MESSAGE_SEAT_STOP), - "SEAT_ID=%s", s->id, - LOG_MESSAGE("Removed seat %s.", s->id), - NULL); - - seat_stop_sessions(s, force); - - unlink(s->state_file); - seat_add_to_gc_queue(s); - - if (s->started) - seat_send_signal(s, false); - - s->started = false; - - return r; -} - -int seat_stop_sessions(Seat *s, bool force) { - Session *session; - int r = 0, k; - - assert(s); - - LIST_FOREACH(sessions_by_seat, session, s->sessions) { - k = session_stop(session, force); - if (k < 0) - r = k; - } - - return r; -} - -void seat_evict_position(Seat *s, Session *session) { - Session *iter; - unsigned int pos = session->position; - - session->position = 0; - - if (pos == 0) - return; - - if (pos < s->position_count && s->positions[pos] == session) { - s->positions[pos] = NULL; - - /* There might be another session claiming the same - * position (eg., during gdm->session transition), so let's look - * for it and set it on the free slot. */ - LIST_FOREACH(sessions_by_seat, iter, s->sessions) { - if (iter->position == pos && session_get_state(iter) != SESSION_CLOSING) { - s->positions[pos] = iter; - break; - } - } - } -} - -void seat_claim_position(Seat *s, Session *session, unsigned int pos) { - /* with VTs, the position is always the same as the VTnr */ - if (seat_has_vts(s)) - pos = session->vtnr; - - if (!GREEDY_REALLOC0(s->positions, s->position_count, pos + 1)) - return; - - seat_evict_position(s, session); - - session->position = pos; - if (pos > 0) - s->positions[pos] = session; -} - -static void seat_assign_position(Seat *s, Session *session) { - unsigned int pos; - - if (session->position > 0) - return; - - for (pos = 1; pos < s->position_count; ++pos) - if (!s->positions[pos]) - break; - - seat_claim_position(s, session, pos); -} - -int seat_attach_session(Seat *s, Session *session) { - assert(s); - assert(session); - assert(!session->seat); - - if (!seat_has_vts(s) != !session->vtnr) - return -EINVAL; - - session->seat = s; - LIST_PREPEND(sessions_by_seat, s->sessions, session); - seat_assign_position(s, session); - - seat_send_changed(s, "Sessions", NULL); - - /* On seats with VTs, the VT logic defines which session is active. On - * seats without VTs, we automatically activate new sessions. */ - if (!seat_has_vts(s)) - seat_set_active(s, session); - - return 0; -} - -void seat_complete_switch(Seat *s) { - Session *session; - - assert(s); - - /* if no session-switch is pending or if it got canceled, do nothing */ - if (!s->pending_switch) - return; - - session = s->pending_switch; - s->pending_switch = NULL; - - seat_set_active(s, session); -} - -bool seat_has_vts(Seat *s) { - assert(s); - - return seat_is_seat0(s) && s->manager->console_active_fd >= 0; -} - -bool seat_is_seat0(Seat *s) { - assert(s); - - return s->manager->seat0 == s; -} - -bool seat_can_multi_session(Seat *s) { - assert(s); - - return seat_has_vts(s); -} - -bool seat_can_tty(Seat *s) { - assert(s); - - return seat_has_vts(s); -} - -bool seat_has_master_device(Seat *s) { - assert(s); - - /* device list is ordered by "master" flag */ - return !!s->devices && s->devices->master; -} - -bool seat_can_graphical(Seat *s) { - assert(s); - - return seat_has_master_device(s); -} - -int seat_get_idle_hint(Seat *s, dual_timestamp *t) { - Session *session; - bool idle_hint = true; - dual_timestamp ts = DUAL_TIMESTAMP_NULL; - - assert(s); - - LIST_FOREACH(sessions_by_seat, session, s->sessions) { - dual_timestamp k; - int ih; - - ih = session_get_idle_hint(session, &k); - if (ih < 0) - return ih; - - if (!ih) { - if (!idle_hint) { - if (k.monotonic > ts.monotonic) - ts = k; - } else { - idle_hint = false; - ts = k; - } - } else if (idle_hint) { - - if (k.monotonic > ts.monotonic) - ts = k; - } - } - - if (t) - *t = ts; - - return idle_hint; -} - -bool seat_check_gc(Seat *s, bool drop_not_started) { - assert(s); - - if (drop_not_started && !s->started) - return false; - - if (seat_is_seat0(s)) - return true; - - return seat_has_master_device(s); -} - -void seat_add_to_gc_queue(Seat *s) { - assert(s); - - if (s->in_gc_queue) - return; - - LIST_PREPEND(gc_queue, s->manager->seat_gc_queue, s); - s->in_gc_queue = true; -} - -static bool seat_name_valid_char(char c) { - return - (c >= 'a' && c <= 'z') || - (c >= 'A' && c <= 'Z') || - (c >= '0' && c <= '9') || - c == '-' || - c == '_'; -} - -bool seat_name_is_valid(const char *name) { - const char *p; - - assert(name); - - if (!startswith(name, "seat")) - return false; - - if (!name[4]) - return false; - - for (p = name; *p; p++) - if (!seat_name_valid_char(*p)) - return false; - - if (strlen(name) > 255) - return false; - - return true; -} diff --git a/src/grp-login/liblogind-core/logind-seat.h b/src/grp-login/liblogind-core/logind-seat.h deleted file mode 100644 index 7fbeb5a727..0000000000 --- a/src/grp-login/liblogind-core/logind-seat.h +++ /dev/null @@ -1,96 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "basic/list.h" - -typedef struct Seat Seat; - -#include "logind-session.h" - -struct Seat { - Manager *manager; - char *id; - - char *state_file; - - LIST_HEAD(Device, devices); - - Session *active; - Session *pending_switch; - LIST_HEAD(Session, sessions); - - Session **positions; - size_t position_count; - - bool in_gc_queue:1; - bool started:1; - - LIST_FIELDS(Seat, gc_queue); -}; - -Seat *seat_new(Manager *m, const char *id); -void seat_free(Seat *s); - -int seat_save(Seat *s); -int seat_load(Seat *s); - -int seat_apply_acls(Seat *s, Session *old_active); -int seat_set_active(Seat *s, Session *session); -int seat_switch_to(Seat *s, unsigned int num); -int seat_switch_to_next(Seat *s); -int seat_switch_to_previous(Seat *s); -int seat_active_vt_changed(Seat *s, unsigned int vtnr); -int seat_read_active_vt(Seat *s); -int seat_preallocate_vts(Seat *s); - -int seat_attach_session(Seat *s, Session *session); -void seat_complete_switch(Seat *s); -void seat_evict_position(Seat *s, Session *session); -void seat_claim_position(Seat *s, Session *session, unsigned int pos); - -bool seat_has_vts(Seat *s); -bool seat_is_seat0(Seat *s); -bool seat_can_multi_session(Seat *s); -bool seat_can_tty(Seat *s); -bool seat_has_master_device(Seat *s); -bool seat_can_graphical(Seat *s); - -int seat_get_idle_hint(Seat *s, dual_timestamp *t); - -int seat_start(Seat *s); -int seat_stop(Seat *s, bool force); -int seat_stop_sessions(Seat *s, bool force); - -bool seat_check_gc(Seat *s, bool drop_not_started); -void seat_add_to_gc_queue(Seat *s); - -bool seat_name_is_valid(const char *name); - -extern const sd_bus_vtable seat_vtable[]; - -int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); -int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); -char *seat_bus_path(Seat *s); - -int seat_send_signal(Seat *s, bool new_seat); -int seat_send_changed(Seat *s, const char *properties, ...) _sentinel_; - -int bus_seat_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error); diff --git a/src/grp-login/liblogind-core/logind-session-dbus.c b/src/grp-login/liblogind-core/logind-session-dbus.c deleted file mode 100644 index 76228d4474..0000000000 --- a/src/grp-login/liblogind-core/logind-session-dbus.c +++ /dev/null @@ -1,799 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> - -#include "basic/alloc-util.h" -#include "basic/bus-label.h" -#include "basic/fd-util.h" -#include "basic/signal-util.h" -#include "basic/strv.h" -#include "basic/util.h" -#include "logind.h" -#include "sd-bus/bus-common-errors.h" -#include "shared/bus-util.h" - -#include "logind-session-device.h" -#include "logind-session.h" - -static int property_get_user( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_free_ char *p = NULL; - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - p = user_bus_path(s->user); - if (!p) - return -ENOMEM; - - return sd_bus_message_append(reply, "(uo)", (uint32_t) s->user->uid, p); -} - -static int property_get_name( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "s", s->user->name); -} - -static int property_get_seat( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_free_ char *p = NULL; - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - p = s->seat ? seat_bus_path(s->seat) : strdup("/"); - if (!p) - return -ENOMEM; - - return sd_bus_message_append(reply, "(so)", s->seat ? s->seat->id : "", p); -} - -static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, session_type, SessionType); -static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, session_class, SessionClass); - -static int property_get_active( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", session_is_active(s)); -} - -static int property_get_state( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "s", session_state_to_string(session_get_state(s))); -} - -static int property_get_idle_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", session_get_idle_hint(s, NULL) > 0); -} - -static int property_get_idle_since_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Session *s = userdata; - dual_timestamp t = DUAL_TIMESTAMP_NULL; - uint64_t u; - int r; - - assert(bus); - assert(reply); - assert(s); - - r = session_get_idle_hint(s, &t); - if (r < 0) - return r; - - u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; - - return sd_bus_message_append(reply, "t", u); -} - -static int property_get_locked_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Session *s = userdata; - - assert(bus); - assert(reply); - assert(s); - - return sd_bus_message_append(reply, "b", session_get_locked_hint(s) > 0); -} - -int bus_session_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - int r; - - assert(message); - assert(s); - - r = bus_verify_polkit_async( - message, - CAP_KILL, - "org.freedesktop.login1.manage", - NULL, - false, - s->user->uid, - &s->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = session_stop(s, true); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_session_method_activate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - int r; - - assert(message); - assert(s); - - r = session_activate(s); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_session_method_lock(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - int r; - - assert(message); - assert(s); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.login1.lock-sessions", - NULL, - false, - s->user->uid, - &s->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = session_send_lock(s, strstr(sd_bus_message_get_member(message), "Lock")); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_set_idle_hint(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - Session *s = userdata; - uid_t uid; - int r, b; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "b", &b); - if (r < 0) - return r; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_euid(creds, &uid); - if (r < 0) - return r; - - if (uid != 0 && uid != s->user->uid) - return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may set idle hint"); - - session_set_idle_hint(s, b); - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_set_locked_hint(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - Session *s = userdata; - uid_t uid; - int r, b; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "b", &b); - if (r < 0) - return r; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_euid(creds, &uid); - if (r < 0) - return r; - - if (uid != 0 && uid != s->user->uid) - return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may set locked hint"); - - session_set_locked_hint(s, b); - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_session_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - const char *swho; - int32_t signo; - KillWho who; - int r; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "si", &swho, &signo); - if (r < 0) - return r; - - if (isempty(swho)) - who = KILL_ALL; - else { - who = kill_who_from_string(swho); - if (who < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho); - } - - if (!SIGNAL_VALID(signo)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); - - r = bus_verify_polkit_async( - message, - CAP_KILL, - "org.freedesktop.login1.manage", - NULL, - false, - s->user->uid, - &s->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = session_kill(s, who, signo); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_take_control(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - Session *s = userdata; - int r, force; - uid_t uid; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "b", &force); - if (r < 0) - return r; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_euid(creds, &uid); - if (r < 0) - return r; - - if (uid != 0 && (force || uid != s->user->uid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may take control"); - - r = session_set_controller(s, sd_bus_message_get_sender(message), force); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_release_control(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - - assert(message); - assert(s); - - if (!session_is_controller(s, sd_bus_message_get_sender(message))) - return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); - - session_drop_controller(s); - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_take_device(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - uint32_t major, minor; - SessionDevice *sd; - dev_t dev; - int r; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "uu", &major, &minor); - if (r < 0) - return r; - - if (!session_is_controller(s, sd_bus_message_get_sender(message))) - return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); - - dev = makedev(major, minor); - sd = hashmap_get(s->devices, &dev); - if (sd) - /* We don't allow retrieving a device multiple times. - * The related ReleaseDevice call is not ref-counted. - * The caller should use dup() if it requires more - * than one fd (it would be functionally - * equivalent). */ - return sd_bus_error_setf(error, BUS_ERROR_DEVICE_IS_TAKEN, "Device already taken"); - - r = session_device_new(s, dev, &sd); - if (r < 0) - return r; - - r = sd_bus_reply_method_return(message, "hb", sd->fd, !sd->active); - if (r < 0) - session_device_free(sd); - - return r; -} - -static int method_release_device(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - uint32_t major, minor; - SessionDevice *sd; - dev_t dev; - int r; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "uu", &major, &minor); - if (r < 0) - return r; - - if (!session_is_controller(s, sd_bus_message_get_sender(message))) - return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); - - dev = makedev(major, minor); - sd = hashmap_get(s->devices, &dev); - if (!sd) - return sd_bus_error_setf(error, BUS_ERROR_DEVICE_NOT_TAKEN, "Device not taken"); - - session_device_free(sd); - return sd_bus_reply_method_return(message, NULL); -} - -static int method_pause_device_complete(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Session *s = userdata; - uint32_t major, minor; - SessionDevice *sd; - dev_t dev; - int r; - - assert(message); - assert(s); - - r = sd_bus_message_read(message, "uu", &major, &minor); - if (r < 0) - return r; - - if (!session_is_controller(s, sd_bus_message_get_sender(message))) - return sd_bus_error_setf(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); - - dev = makedev(major, minor); - sd = hashmap_get(s->devices, &dev); - if (!sd) - return sd_bus_error_setf(error, BUS_ERROR_DEVICE_NOT_TAKEN, "Device not taken"); - - session_device_complete_pause(sd); - - return sd_bus_reply_method_return(message, NULL); -} - -const sd_bus_vtable session_vtable[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Session, id), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("User", "(uo)", property_get_user, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Name", "s", property_get_name, 0, SD_BUS_VTABLE_PROPERTY_CONST), - BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Session, timestamp), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("VTNr", "u", NULL, offsetof(Session, vtnr), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Seat", "(so)", property_get_seat, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("TTY", "s", NULL, offsetof(Session, tty), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Display", "s", NULL, offsetof(Session, display), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Remote", "b", bus_property_get_bool, offsetof(Session, remote), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("RemoteHost", "s", NULL, offsetof(Session, remote_host), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("RemoteUser", "s", NULL, offsetof(Session, remote_user), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Session, service), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Desktop", "s", NULL, offsetof(Session, desktop), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Session, scope), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Leader", "u", bus_property_get_pid, offsetof(Session, leader), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Audit", "u", NULL, offsetof(Session, audit_id), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Session, type), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Session, class), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Active", "b", property_get_active, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), - SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("LockedHint", "b", property_get_locked_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - - SD_BUS_METHOD("Terminate", NULL, NULL, bus_session_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Activate", NULL, NULL, bus_session_method_activate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Lock", NULL, NULL, bus_session_method_lock, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Unlock", NULL, NULL, bus_session_method_lock, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetIdleHint", "b", NULL, method_set_idle_hint, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetLockedHint", "b", NULL, method_set_locked_hint, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Kill", "si", NULL, bus_session_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("TakeControl", "b", NULL, method_take_control, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ReleaseControl", NULL, NULL, method_release_control, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("TakeDevice", "uu", "hb", method_take_device, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ReleaseDevice", "uu", NULL, method_release_device, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("PauseDeviceComplete", "uu", NULL, method_pause_device_complete, SD_BUS_VTABLE_UNPRIVILEGED), - - SD_BUS_SIGNAL("PauseDevice", "uus", 0), - SD_BUS_SIGNAL("ResumeDevice", "uuh", 0), - SD_BUS_SIGNAL("Lock", NULL, 0), - SD_BUS_SIGNAL("Unlock", NULL, 0), - - SD_BUS_VTABLE_END -}; - -int session_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { - Manager *m = userdata; - Session *session; - int r; - - assert(bus); - assert(path); - assert(interface); - assert(found); - assert(m); - - if (streq(path, "/org/freedesktop/login1/session/self")) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - sd_bus_message *message; - const char *name; - - message = sd_bus_get_current_message(bus); - if (!message) - return 0; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_session(creds, &name); - if (r < 0) - return r; - - session = hashmap_get(m->sessions, name); - } else { - _cleanup_free_ char *e = NULL; - const char *p; - - p = startswith(path, "/org/freedesktop/login1/session/"); - if (!p) - return 0; - - e = bus_label_unescape(p); - if (!e) - return -ENOMEM; - - session = hashmap_get(m->sessions, e); - } - - if (!session) - return 0; - - *found = session; - return 1; -} - -char *session_bus_path(Session *s) { - _cleanup_free_ char *t = NULL; - - assert(s); - - t = bus_label_escape(s->id); - if (!t) - return NULL; - - return strappend("/org/freedesktop/login1/session/", t); -} - -int session_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { - _cleanup_strv_free_ char **l = NULL; - sd_bus_message *message; - Manager *m = userdata; - Session *session; - Iterator i; - int r; - - assert(bus); - assert(path); - assert(nodes); - - HASHMAP_FOREACH(session, m->sessions, i) { - char *p; - - p = session_bus_path(session); - if (!p) - return -ENOMEM; - - r = strv_consume(&l, p); - if (r < 0) - return r; - } - - message = sd_bus_get_current_message(bus); - if (message) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - const char *name; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds); - if (r >= 0) { - r = sd_bus_creds_get_session(creds, &name); - if (r >= 0) { - session = hashmap_get(m->sessions, name); - if (session) { - r = strv_extend(&l, "/org/freedesktop/login1/session/self"); - if (r < 0) - return r; - } - } - } - } - - *nodes = l; - l = NULL; - - return 1; -} - -int session_send_signal(Session *s, bool new_session) { - _cleanup_free_ char *p = NULL; - - assert(s); - - p = session_bus_path(s); - if (!p) - return -ENOMEM; - - return sd_bus_emit_signal( - s->manager->bus, - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - new_session ? "SessionNew" : "SessionRemoved", - "so", s->id, p); -} - -int session_send_changed(Session *s, const char *properties, ...) { - _cleanup_free_ char *p = NULL; - char **l; - - assert(s); - - if (!s->started) - return 0; - - p = session_bus_path(s); - if (!p) - return -ENOMEM; - - l = strv_from_stdarg_alloca(properties); - - return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Session", l); -} - -int session_send_lock(Session *s, bool lock) { - _cleanup_free_ char *p = NULL; - - assert(s); - - p = session_bus_path(s); - if (!p) - return -ENOMEM; - - return sd_bus_emit_signal( - s->manager->bus, - p, - "org.freedesktop.login1.Session", - lock ? "Lock" : "Unlock", - NULL); -} - -int session_send_lock_all(Manager *m, bool lock) { - Session *session; - Iterator i; - int r = 0; - - assert(m); - - HASHMAP_FOREACH(session, m->sessions, i) { - int k; - - k = session_send_lock(session, lock); - if (k < 0) - r = k; - } - - return r; -} - -int session_send_create_reply(Session *s, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *c = NULL; - _cleanup_close_ int fifo_fd = -1; - _cleanup_free_ char *p = NULL; - - assert(s); - - /* This is called after the session scope and the user service - * were successfully created, and finishes where - * bus_manager_create_session() left off. */ - - if (!s->create_message) - return 0; - - if (!sd_bus_error_is_set(error) && (s->scope_job || s->user->service_job)) - return 0; - - c = s->create_message; - s->create_message = NULL; - - if (error) - return sd_bus_reply_method_error(c, error); - - fifo_fd = session_create_fifo(s); - if (fifo_fd < 0) - return fifo_fd; - - /* Update the session state file before we notify the client - * about the result. */ - session_save(s); - - p = session_bus_path(s); - if (!p) - return -ENOMEM; - - log_debug("Sending reply about created session: " - "id=%s object_path=%s uid=%u runtime_path=%s " - "session_fd=%d seat=%s vtnr=%u", - s->id, - p, - (uint32_t) s->user->uid, - s->user->runtime_path, - fifo_fd, - s->seat ? s->seat->id : "", - (uint32_t) s->vtnr); - - return sd_bus_reply_method_return( - c, "soshusub", - s->id, - p, - s->user->runtime_path, - fifo_fd, - (uint32_t) s->user->uid, - s->seat ? s->seat->id : "", - (uint32_t) s->vtnr, - false); -} diff --git a/src/grp-login/liblogind-core/logind-session-device.c b/src/grp-login/liblogind-core/logind-session-device.c deleted file mode 100644 index 99528488c0..0000000000 --- a/src/grp-login/liblogind-core/logind-session-device.c +++ /dev/null @@ -1,482 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2013 David Herrmann - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <fcntl.h> -#include <string.h> -#include <sys/ioctl.h> -#include <sys/types.h> - -#include <linux/input.h> - -#include <libudev.h> - -#include "basic/alloc-util.h" -#include "basic/fd-util.h" -#include "basic/missing.h" -#include "basic/util.h" -#include "shared/bus-util.h" - -#include "logind-session-device.h" - -enum SessionDeviceNotifications { - SESSION_DEVICE_RESUME, - SESSION_DEVICE_TRY_PAUSE, - SESSION_DEVICE_PAUSE, - SESSION_DEVICE_RELEASE, -}; - -static int session_device_notify(SessionDevice *sd, enum SessionDeviceNotifications type) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; - _cleanup_free_ char *path = NULL; - const char *t = NULL; - uint32_t major, minor; - int r; - - assert(sd); - - major = major(sd->dev); - minor = minor(sd->dev); - - if (!sd->session->controller) - return 0; - - path = session_bus_path(sd->session); - if (!path) - return -ENOMEM; - - r = sd_bus_message_new_signal( - sd->session->manager->bus, - &m, path, - "org.freedesktop.login1.Session", - (type == SESSION_DEVICE_RESUME) ? "ResumeDevice" : "PauseDevice"); - if (!m) - return r; - - r = sd_bus_message_set_destination(m, sd->session->controller); - if (r < 0) - return r; - - switch (type) { - case SESSION_DEVICE_RESUME: - r = sd_bus_message_append(m, "uuh", major, minor, sd->fd); - if (r < 0) - return r; - break; - case SESSION_DEVICE_TRY_PAUSE: - t = "pause"; - break; - case SESSION_DEVICE_PAUSE: - t = "force"; - break; - case SESSION_DEVICE_RELEASE: - t = "gone"; - break; - default: - return -EINVAL; - } - - if (t) { - r = sd_bus_message_append(m, "uus", major, minor, t); - if (r < 0) - return r; - } - - return sd_bus_send(sd->session->manager->bus, m, NULL); -} - -static int sd_eviocrevoke(int fd) { - static bool warned; - int r; - - assert(fd >= 0); - - r = ioctl(fd, EVIOCREVOKE, NULL); - if (r < 0) { - r = -errno; - if (r == -EINVAL && !warned) { - warned = true; - log_warning("kernel does not support evdev-revocation"); - } - } - - return 0; -} - -static int sd_drmsetmaster(int fd) { - int r; - - assert(fd >= 0); - - r = ioctl(fd, DRM_IOCTL_SET_MASTER, 0); - if (r < 0) - return -errno; - - return 0; -} - -static int sd_drmdropmaster(int fd) { - int r; - - assert(fd >= 0); - - r = ioctl(fd, DRM_IOCTL_DROP_MASTER, 0); - if (r < 0) - return -errno; - - return 0; -} - -static int session_device_open(SessionDevice *sd, bool active) { - int fd, r; - - assert(sd->type != DEVICE_TYPE_UNKNOWN); - - /* open device and try to get an udev_device from it */ - fd = open(sd->node, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); - if (fd < 0) - return -errno; - - switch (sd->type) { - case DEVICE_TYPE_DRM: - if (active) { - /* Weird legacy DRM semantics might return an error - * even though we're master. No way to detect that so - * fail at all times and let caller retry in inactive - * state. */ - r = sd_drmsetmaster(fd); - if (r < 0) { - close_nointr(fd); - return r; - } - } else { - /* DRM-Master is granted to the first user who opens a - * device automatically (ughh, racy!). Hence, we just - * drop DRM-Master in case we were the first. */ - sd_drmdropmaster(fd); - } - break; - case DEVICE_TYPE_EVDEV: - if (!active) - sd_eviocrevoke(fd); - break; - case DEVICE_TYPE_UNKNOWN: - default: - /* fallback for devices wihout synchronizations */ - break; - } - - return fd; -} - -static int session_device_start(SessionDevice *sd) { - int r; - - assert(sd); - assert(session_is_active(sd->session)); - - if (sd->active) - return 0; - - switch (sd->type) { - case DEVICE_TYPE_DRM: - /* Device is kept open. Simply call drmSetMaster() and hope - * there is no-one else. In case it fails, we keep the device - * paused. Maybe at some point we have a drmStealMaster(). */ - r = sd_drmsetmaster(sd->fd); - if (r < 0) - return r; - break; - case DEVICE_TYPE_EVDEV: - /* Evdev devices are revoked while inactive. Reopen it and we - * are fine. */ - r = session_device_open(sd, true); - if (r < 0) - return r; - close_nointr(sd->fd); - sd->fd = r; - break; - case DEVICE_TYPE_UNKNOWN: - default: - /* fallback for devices wihout synchronizations */ - break; - } - - sd->active = true; - return 0; -} - -static void session_device_stop(SessionDevice *sd) { - assert(sd); - - if (!sd->active) - return; - - switch (sd->type) { - case DEVICE_TYPE_DRM: - /* On DRM devices we simply drop DRM-Master but keep it open. - * This allows the user to keep resources allocated. The - * CAP_SYS_ADMIN restriction to DRM-Master prevents users from - * circumventing this. */ - sd_drmdropmaster(sd->fd); - break; - case DEVICE_TYPE_EVDEV: - /* Revoke access on evdev file-descriptors during deactivation. - * This will basically prevent any operations on the fd and - * cannot be undone. Good side is: it needs no CAP_SYS_ADMIN - * protection this way. */ - sd_eviocrevoke(sd->fd); - break; - case DEVICE_TYPE_UNKNOWN: - default: - /* fallback for devices without synchronization */ - break; - } - - sd->active = false; -} - -static DeviceType detect_device_type(struct udev_device *dev) { - const char *sysname, *subsystem; - DeviceType type; - - sysname = udev_device_get_sysname(dev); - subsystem = udev_device_get_subsystem(dev); - type = DEVICE_TYPE_UNKNOWN; - - if (streq_ptr(subsystem, "drm")) { - if (startswith(sysname, "card")) - type = DEVICE_TYPE_DRM; - } else if (streq_ptr(subsystem, "input")) { - if (startswith(sysname, "event")) - type = DEVICE_TYPE_EVDEV; - } - - return type; -} - -static int session_device_verify(SessionDevice *sd) { - struct udev_device *dev, *p = NULL; - const char *sp, *node; - int r; - - dev = udev_device_new_from_devnum(sd->session->manager->udev, 'c', sd->dev); - if (!dev) - return -ENODEV; - - sp = udev_device_get_syspath(dev); - node = udev_device_get_devnode(dev); - if (!node) { - r = -EINVAL; - goto err_dev; - } - - /* detect device type so we can find the correct sysfs parent */ - sd->type = detect_device_type(dev); - if (sd->type == DEVICE_TYPE_UNKNOWN) { - r = -ENODEV; - goto err_dev; - } else if (sd->type == DEVICE_TYPE_EVDEV) { - /* for evdev devices we need the parent node as device */ - p = dev; - dev = udev_device_get_parent_with_subsystem_devtype(p, "input", NULL); - if (!dev) { - r = -ENODEV; - goto err_dev; - } - sp = udev_device_get_syspath(dev); - } else if (sd->type != DEVICE_TYPE_DRM) { - /* Prevent opening unsupported devices. Especially devices of - * subsystem "input" must be opened via the evdev node as - * we require EVIOCREVOKE. */ - r = -ENODEV; - goto err_dev; - } - - /* search for an existing seat device and return it if available */ - sd->device = hashmap_get(sd->session->manager->devices, sp); - if (!sd->device) { - /* The caller might have gotten the udev event before we were - * able to process it. Hence, fake the "add" event and let the - * logind-manager handle the new device. */ - r = manager_process_seat_device(sd->session->manager, dev); - if (r < 0) - goto err_dev; - - /* if it's still not available, then the device is invalid */ - sd->device = hashmap_get(sd->session->manager->devices, sp); - if (!sd->device) { - r = -ENODEV; - goto err_dev; - } - } - - if (sd->device->seat != sd->session->seat) { - r = -EPERM; - goto err_dev; - } - - sd->node = strdup(node); - if (!sd->node) { - r = -ENOMEM; - goto err_dev; - } - - r = 0; -err_dev: - udev_device_unref(p ? : dev); - return r; -} - -int session_device_new(Session *s, dev_t dev, SessionDevice **out) { - SessionDevice *sd; - int r; - - assert(s); - assert(out); - - if (!s->seat) - return -EPERM; - - sd = new0(SessionDevice, 1); - if (!sd) - return -ENOMEM; - - sd->session = s; - sd->dev = dev; - sd->fd = -1; - sd->type = DEVICE_TYPE_UNKNOWN; - - r = session_device_verify(sd); - if (r < 0) - goto error; - - r = hashmap_put(s->devices, &sd->dev, sd); - if (r < 0) { - r = -ENOMEM; - goto error; - } - - /* Open the device for the first time. We need a valid fd to pass back - * to the caller. If the session is not active, this _might_ immediately - * revoke access and thus invalidate the fd. But this is still needed - * to pass a valid fd back. */ - sd->active = session_is_active(s); - r = session_device_open(sd, sd->active); - if (r < 0) { - /* EINVAL _may_ mean a master is active; retry inactive */ - if (sd->active && r == -EINVAL) { - sd->active = false; - r = session_device_open(sd, false); - } - if (r < 0) - goto error; - } - sd->fd = r; - - LIST_PREPEND(sd_by_device, sd->device->session_devices, sd); - - *out = sd; - return 0; - -error: - hashmap_remove(s->devices, &sd->dev); - free(sd->node); - free(sd); - return r; -} - -void session_device_free(SessionDevice *sd) { - assert(sd); - - session_device_stop(sd); - session_device_notify(sd, SESSION_DEVICE_RELEASE); - close_nointr(sd->fd); - - LIST_REMOVE(sd_by_device, sd->device->session_devices, sd); - - hashmap_remove(sd->session->devices, &sd->dev); - - free(sd->node); - free(sd); -} - -void session_device_complete_pause(SessionDevice *sd) { - SessionDevice *iter; - Iterator i; - - if (!sd->active) - return; - - session_device_stop(sd); - - /* if not all devices are paused, wait for further completion events */ - HASHMAP_FOREACH(iter, sd->session->devices, i) - if (iter->active) - return; - - /* complete any pending session switch */ - seat_complete_switch(sd->session->seat); -} - -void session_device_resume_all(Session *s) { - SessionDevice *sd; - Iterator i; - int r; - - assert(s); - - HASHMAP_FOREACH(sd, s->devices, i) { - if (!sd->active) { - r = session_device_start(sd); - if (!r) - session_device_notify(sd, SESSION_DEVICE_RESUME); - } - } -} - -void session_device_pause_all(Session *s) { - SessionDevice *sd; - Iterator i; - - assert(s); - - HASHMAP_FOREACH(sd, s->devices, i) { - if (sd->active) { - session_device_stop(sd); - session_device_notify(sd, SESSION_DEVICE_PAUSE); - } - } -} - -unsigned int session_device_try_pause_all(Session *s) { - SessionDevice *sd; - Iterator i; - unsigned int num_pending = 0; - - assert(s); - - HASHMAP_FOREACH(sd, s->devices, i) { - if (sd->active) { - session_device_notify(sd, SESSION_DEVICE_TRY_PAUSE); - ++num_pending; - } - } - - return num_pending; -} diff --git a/src/grp-login/liblogind-core/logind-session-device.h b/src/grp-login/liblogind-core/logind-session-device.h deleted file mode 100644 index 4a22decb1d..0000000000 --- a/src/grp-login/liblogind-core/logind-session-device.h +++ /dev/null @@ -1,54 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 David Herrmann - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "basic/list.h" - -typedef enum DeviceType DeviceType; -typedef struct SessionDevice SessionDevice; - -#include "logind.h" - -enum DeviceType { - DEVICE_TYPE_UNKNOWN, - DEVICE_TYPE_DRM, - DEVICE_TYPE_EVDEV, -}; - -struct SessionDevice { - Session *session; - Device *device; - - dev_t dev; - char *node; - int fd; - bool active; - DeviceType type; - - LIST_FIELDS(struct SessionDevice, sd_by_device); -}; - -int session_device_new(Session *s, dev_t dev, SessionDevice **out); -void session_device_free(SessionDevice *sd); -void session_device_complete_pause(SessionDevice *sd); - -void session_device_resume_all(Session *s); -void session_device_pause_all(Session *s); -unsigned int session_device_try_pause_all(Session *s); diff --git a/src/grp-login/liblogind-core/logind-session.c b/src/grp-login/liblogind-core/logind-session.c deleted file mode 100644 index 928f4a6314..0000000000 --- a/src/grp-login/liblogind-core/logind-session.c +++ /dev/null @@ -1,1273 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <signal.h> -#include <string.h> -#include <sys/ioctl.h> -#include <unistd.h> - -#include <linux/kd.h> -#include <linux/vt.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/audit-util.h" -#include "basic/escape.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/io-util.h" -#include "basic/mkdir.h" -#include "basic/parse-util.h" -#include "basic/path-util.h" -#include "basic/string-table.h" -#include "basic/terminal-util.h" -#include "basic/user-util.h" -#include "basic/util.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" - -#include "logind-session.h" - -#define RELEASE_USEC (20*USEC_PER_SEC) - -static void session_remove_fifo(Session *s); - -Session* session_new(Manager *m, const char *id) { - Session *s; - - assert(m); - assert(id); - assert(session_id_valid(id)); - - s = new0(Session, 1); - if (!s) - return NULL; - - s->state_file = strappend("/run/systemd/sessions/", id); - if (!s->state_file) { - free(s); - return NULL; - } - - s->devices = hashmap_new(&devt_hash_ops); - if (!s->devices) { - free(s->state_file); - free(s); - return NULL; - } - - s->id = basename(s->state_file); - - if (hashmap_put(m->sessions, s->id, s) < 0) { - hashmap_free(s->devices); - free(s->state_file); - free(s); - return NULL; - } - - s->manager = m; - s->fifo_fd = -1; - s->vtfd = -1; - - return s; -} - -void session_free(Session *s) { - SessionDevice *sd; - - assert(s); - - if (s->in_gc_queue) - LIST_REMOVE(gc_queue, s->manager->session_gc_queue, s); - - s->timer_event_source = sd_event_source_unref(s->timer_event_source); - - session_remove_fifo(s); - - session_drop_controller(s); - - while ((sd = hashmap_first(s->devices))) - session_device_free(sd); - - hashmap_free(s->devices); - - if (s->user) { - LIST_REMOVE(sessions_by_user, s->user->sessions, s); - - if (s->user->display == s) - s->user->display = NULL; - } - - if (s->seat) { - if (s->seat->active == s) - s->seat->active = NULL; - if (s->seat->pending_switch == s) - s->seat->pending_switch = NULL; - - seat_evict_position(s->seat, s); - LIST_REMOVE(sessions_by_seat, s->seat->sessions, s); - } - - if (s->scope) { - hashmap_remove(s->manager->session_units, s->scope); - free(s->scope); - } - - free(s->scope_job); - - sd_bus_message_unref(s->create_message); - - free(s->tty); - free(s->display); - free(s->remote_host); - free(s->remote_user); - free(s->service); - free(s->desktop); - - hashmap_remove(s->manager->sessions, s->id); - - free(s->state_file); - free(s); -} - -void session_set_user(Session *s, User *u) { - assert(s); - assert(!s->user); - - s->user = u; - LIST_PREPEND(sessions_by_user, u->sessions, s); -} - -int session_save(Session *s) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r = 0; - - assert(s); - - if (!s->user) - return -ESTALE; - - if (!s->started) - return 0; - - r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0); - if (r < 0) - goto fail; - - r = fopen_temporary(s->state_file, &f, &temp_path); - if (r < 0) - goto fail; - - assert(s->user); - - fchmod(fileno(f), 0644); - - fprintf(f, - "# This is private data. Do not parse.\n" - "UID="UID_FMT"\n" - "USER=%s\n" - "ACTIVE=%i\n" - "STATE=%s\n" - "REMOTE=%i\n", - s->user->uid, - s->user->name, - session_is_active(s), - session_state_to_string(session_get_state(s)), - s->remote); - - if (s->type >= 0) - fprintf(f, "TYPE=%s\n", session_type_to_string(s->type)); - - if (s->class >= 0) - fprintf(f, "CLASS=%s\n", session_class_to_string(s->class)); - - if (s->scope) - fprintf(f, "SCOPE=%s\n", s->scope); - if (s->scope_job) - fprintf(f, "SCOPE_JOB=%s\n", s->scope_job); - - if (s->fifo_path) - fprintf(f, "FIFO=%s\n", s->fifo_path); - - if (s->seat) - fprintf(f, "SEAT=%s\n", s->seat->id); - - if (s->tty) - fprintf(f, "TTY=%s\n", s->tty); - - if (s->display) - fprintf(f, "DISPLAY=%s\n", s->display); - - if (s->remote_host) { - _cleanup_free_ char *escaped; - - escaped = cescape(s->remote_host); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "REMOTE_HOST=%s\n", escaped); - } - - if (s->remote_user) { - _cleanup_free_ char *escaped; - - escaped = cescape(s->remote_user); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "REMOTE_USER=%s\n", escaped); - } - - if (s->service) { - _cleanup_free_ char *escaped; - - escaped = cescape(s->service); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "SERVICE=%s\n", escaped); - } - - if (s->desktop) { - _cleanup_free_ char *escaped; - - - escaped = cescape(s->desktop); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "DESKTOP=%s\n", escaped); - } - - if (s->seat && seat_has_vts(s->seat)) - fprintf(f, "VTNR=%u\n", s->vtnr); - - if (!s->vtnr) - fprintf(f, "POSITION=%u\n", s->position); - - if (s->leader > 0) - fprintf(f, "LEADER="PID_FMT"\n", s->leader); - - if (s->audit_id > 0) - fprintf(f, "AUDIT=%"PRIu32"\n", s->audit_id); - - if (dual_timestamp_is_set(&s->timestamp)) - fprintf(f, - "REALTIME="USEC_FMT"\n" - "MONOTONIC="USEC_FMT"\n", - s->timestamp.realtime, - s->timestamp.monotonic); - - if (s->controller) - fprintf(f, "CONTROLLER=%s\n", s->controller); - - r = fflush_and_check(f); - if (r < 0) - goto fail; - - if (rename(temp_path, s->state_file) < 0) { - r = -errno; - goto fail; - } - - return 0; - -fail: - (void) unlink(s->state_file); - - if (temp_path) - (void) unlink(temp_path); - - return log_error_errno(r, "Failed to save session data %s: %m", s->state_file); -} - - -int session_load(Session *s) { - _cleanup_free_ char *remote = NULL, - *seat = NULL, - *vtnr = NULL, - *state = NULL, - *position = NULL, - *leader = NULL, - *type = NULL, - *class = NULL, - *uid = NULL, - *realtime = NULL, - *monotonic = NULL, - *controller = NULL; - - int k, r; - - assert(s); - - r = parse_env_file(s->state_file, NEWLINE, - "REMOTE", &remote, - "SCOPE", &s->scope, - "SCOPE_JOB", &s->scope_job, - "FIFO", &s->fifo_path, - "SEAT", &seat, - "TTY", &s->tty, - "DISPLAY", &s->display, - "REMOTE_HOST", &s->remote_host, - "REMOTE_USER", &s->remote_user, - "SERVICE", &s->service, - "DESKTOP", &s->desktop, - "VTNR", &vtnr, - "STATE", &state, - "POSITION", &position, - "LEADER", &leader, - "TYPE", &type, - "CLASS", &class, - "UID", &uid, - "REALTIME", &realtime, - "MONOTONIC", &monotonic, - "CONTROLLER", &controller, - NULL); - - if (r < 0) - return log_error_errno(r, "Failed to read %s: %m", s->state_file); - - if (!s->user) { - uid_t u; - User *user; - - if (!uid) { - log_error("UID not specified for session %s", s->id); - return -ENOENT; - } - - r = parse_uid(uid, &u); - if (r < 0) { - log_error("Failed to parse UID value %s for session %s.", uid, s->id); - return r; - } - - user = hashmap_get(s->manager->users, UID_TO_PTR(u)); - if (!user) { - log_error("User of session %s not known.", s->id); - return -ENOENT; - } - - session_set_user(s, user); - } - - if (remote) { - k = parse_boolean(remote); - if (k >= 0) - s->remote = k; - } - - if (vtnr) - safe_atou(vtnr, &s->vtnr); - - if (seat && !s->seat) { - Seat *o; - - o = hashmap_get(s->manager->seats, seat); - if (o) - r = seat_attach_session(o, s); - if (!o || r < 0) - log_error("Cannot attach session %s to seat %s", s->id, seat); - } - - if (!s->seat || !seat_has_vts(s->seat)) - s->vtnr = 0; - - if (position && s->seat) { - unsigned int npos; - - safe_atou(position, &npos); - seat_claim_position(s->seat, s, npos); - } - - if (leader) { - k = parse_pid(leader, &s->leader); - if (k >= 0) - audit_session_from_pid(s->leader, &s->audit_id); - } - - if (type) { - SessionType t; - - t = session_type_from_string(type); - if (t >= 0) - s->type = t; - } - - if (class) { - SessionClass c; - - c = session_class_from_string(class); - if (c >= 0) - s->class = c; - } - - if (state && streq(state, "closing")) - s->stopping = true; - - if (s->fifo_path) { - int fd; - - /* If we open an unopened pipe for reading we will not - get an EOF. to trigger an EOF we hence open it for - writing, but close it right away which then will - trigger the EOF. This will happen immediately if no - other process has the FIFO open for writing, i. e. - when the session died before logind (re)started. */ - - fd = session_create_fifo(s); - safe_close(fd); - } - - if (realtime) - timestamp_deserialize(realtime, &s->timestamp.realtime); - if (monotonic) - timestamp_deserialize(monotonic, &s->timestamp.monotonic); - - if (controller) { - if (bus_name_has_owner(s->manager->bus, controller, NULL) > 0) - session_set_controller(s, controller, false); - else - session_restore_vt(s); - } - - return r; -} - -int session_activate(Session *s) { - unsigned int num_pending; - - assert(s); - assert(s->user); - - if (!s->seat) - return -EOPNOTSUPP; - - if (s->seat->active == s) - return 0; - - /* on seats with VTs, we let VTs manage session-switching */ - if (seat_has_vts(s->seat)) { - if (!s->vtnr) - return -EOPNOTSUPP; - - return chvt(s->vtnr); - } - - /* On seats without VTs, we implement session-switching in logind. We - * try to pause all session-devices and wait until the session - * controller acknowledged them. Once all devices are asleep, we simply - * switch the active session and be done. - * We save the session we want to switch to in seat->pending_switch and - * seat_complete_switch() will perform the final switch. */ - - s->seat->pending_switch = s; - - /* if no devices are running, immediately perform the session switch */ - num_pending = session_device_try_pause_all(s); - if (!num_pending) - seat_complete_switch(s->seat); - - return 0; -} - -static int session_start_scope(Session *s) { - int r; - - assert(s); - assert(s->user); - - if (!s->scope) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char *scope, *job = NULL; - const char *description; - - scope = strjoin("session-", s->id, ".scope", NULL); - if (!scope) - return log_oom(); - - description = strjoina("Session ", s->id, " of user ", s->user->name); - - r = manager_start_scope( - s->manager, - scope, - s->leader, - s->user->slice, - description, - "systemd-logind.service", - "systemd-user-sessions.service", - (uint64_t) -1, /* disable TasksMax= for the scope, rely on the slice setting for it */ - &error, - &job); - if (r < 0) { - log_error_errno(r, "Failed to start session scope %s: %s", scope, bus_error_message(&error, r)); - free(scope); - return r; - } else { - s->scope = scope; - - free(s->scope_job); - s->scope_job = job; - } - } - - if (s->scope) - (void) hashmap_put(s->manager->session_units, s->scope, s); - - return 0; -} - -int session_start(Session *s) { - int r; - - assert(s); - - if (!s->user) - return -ESTALE; - - if (s->started) - return 0; - - r = user_start(s->user); - if (r < 0) - return r; - - /* Create cgroup */ - r = session_start_scope(s); - if (r < 0) - return r; - - log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO, - LOG_MESSAGE_ID(SD_MESSAGE_SESSION_START), - "SESSION_ID=%s", s->id, - "USER_ID=%s", s->user->name, - "LEADER="PID_FMT, s->leader, - LOG_MESSAGE("New session %s of user %s.", s->id, s->user->name), - NULL); - - if (!dual_timestamp_is_set(&s->timestamp)) - dual_timestamp_get(&s->timestamp); - - if (s->seat) - seat_read_active_vt(s->seat); - - s->started = true; - - user_elect_display(s->user); - - /* Save data */ - session_save(s); - user_save(s->user); - if (s->seat) - seat_save(s->seat); - - /* Send signals */ - session_send_signal(s, true); - user_send_changed(s->user, "Sessions", "Display", NULL); - if (s->seat) { - if (s->seat->active == s) - seat_send_changed(s->seat, "Sessions", "ActiveSession", NULL); - else - seat_send_changed(s->seat, "Sessions", NULL); - } - - return 0; -} - -static int session_stop_scope(Session *s, bool force) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char *job = NULL; - int r; - - assert(s); - - if (!s->scope) - return 0; - - if (force || manager_shall_kill(s->manager, s->user->name)) { - r = manager_stop_unit(s->manager, s->scope, &error, &job); - if (r < 0) { - log_error("Failed to stop session scope: %s", bus_error_message(&error, r)); - return r; - } - - free(s->scope_job); - s->scope_job = job; - } else { - r = manager_abandon_scope(s->manager, s->scope, &error); - if (r < 0) { - log_error("Failed to abandon session scope: %s", bus_error_message(&error, r)); - return r; - } - } - - return 0; -} - -int session_stop(Session *s, bool force) { - int r; - - assert(s); - - if (!s->user) - return -ESTALE; - - s->timer_event_source = sd_event_source_unref(s->timer_event_source); - - if (s->seat) - seat_evict_position(s->seat, s); - - /* We are going down, don't care about FIFOs anymore */ - session_remove_fifo(s); - - /* Kill cgroup */ - r = session_stop_scope(s, force); - - s->stopping = true; - - user_elect_display(s->user); - - session_save(s); - user_save(s->user); - - return r; -} - -int session_finalize(Session *s) { - SessionDevice *sd; - - assert(s); - - if (!s->user) - return -ESTALE; - - if (s->started) - log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO, - LOG_MESSAGE_ID(SD_MESSAGE_SESSION_STOP), - "SESSION_ID=%s", s->id, - "USER_ID=%s", s->user->name, - "LEADER="PID_FMT, s->leader, - LOG_MESSAGE("Removed session %s.", s->id), - NULL); - - s->timer_event_source = sd_event_source_unref(s->timer_event_source); - - if (s->seat) - seat_evict_position(s->seat, s); - - /* Kill session devices */ - while ((sd = hashmap_first(s->devices))) - session_device_free(sd); - - (void) unlink(s->state_file); - session_add_to_gc_queue(s); - user_add_to_gc_queue(s->user); - - if (s->started) { - session_send_signal(s, false); - s->started = false; - } - - if (s->seat) { - if (s->seat->active == s) - seat_set_active(s->seat, NULL); - - seat_save(s->seat); - seat_send_changed(s->seat, "Sessions", NULL); - } - - user_save(s->user); - user_send_changed(s->user, "Sessions", "Display", NULL); - - return 0; -} - -static int release_timeout_callback(sd_event_source *es, uint64_t usec, void *userdata) { - Session *s = userdata; - - assert(es); - assert(s); - - session_stop(s, false); - return 0; -} - -int session_release(Session *s) { - assert(s); - - if (!s->started || s->stopping) - return 0; - - if (s->timer_event_source) - return 0; - - return sd_event_add_time(s->manager->event, - &s->timer_event_source, - CLOCK_MONOTONIC, - now(CLOCK_MONOTONIC) + RELEASE_USEC, 0, - release_timeout_callback, s); -} - -bool session_is_active(Session *s) { - assert(s); - - if (!s->seat) - return true; - - return s->seat->active == s; -} - -static int get_tty_atime(const char *tty, usec_t *atime) { - _cleanup_free_ char *p = NULL; - struct stat st; - - assert(tty); - assert(atime); - - if (!path_is_absolute(tty)) { - p = strappend("/dev/", tty); - if (!p) - return -ENOMEM; - - tty = p; - } else if (!path_startswith(tty, "/dev/")) - return -ENOENT; - - if (lstat(tty, &st) < 0) - return -errno; - - *atime = timespec_load(&st.st_atim); - return 0; -} - -static int get_process_ctty_atime(pid_t pid, usec_t *atime) { - _cleanup_free_ char *p = NULL; - int r; - - assert(pid > 0); - assert(atime); - - r = get_ctty(pid, NULL, &p); - if (r < 0) - return r; - - return get_tty_atime(p, atime); -} - -int session_get_idle_hint(Session *s, dual_timestamp *t) { - usec_t atime = 0, n; - int r; - - assert(s); - - /* Explicit idle hint is set */ - if (s->idle_hint) { - if (t) - *t = s->idle_hint_timestamp; - - return s->idle_hint; - } - - /* Graphical sessions should really implement a real - * idle hint logic */ - if (SESSION_TYPE_IS_GRAPHICAL(s->type)) - goto dont_know; - - /* For sessions with an explicitly configured tty, let's check - * its atime */ - if (s->tty) { - r = get_tty_atime(s->tty, &atime); - if (r >= 0) - goto found_atime; - } - - /* For sessions with a leader but no explicitly configured - * tty, let's check the controlling tty of the leader */ - if (s->leader > 0) { - r = get_process_ctty_atime(s->leader, &atime); - if (r >= 0) - goto found_atime; - } - -dont_know: - if (t) - *t = s->idle_hint_timestamp; - - return 0; - -found_atime: - if (t) - dual_timestamp_from_realtime(t, atime); - - n = now(CLOCK_REALTIME); - - if (s->manager->idle_action_usec <= 0) - return 0; - - return atime + s->manager->idle_action_usec <= n; -} - -void session_set_idle_hint(Session *s, bool b) { - assert(s); - - if (s->idle_hint == b) - return; - - s->idle_hint = b; - dual_timestamp_get(&s->idle_hint_timestamp); - - session_send_changed(s, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); - - if (s->seat) - seat_send_changed(s->seat, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); - - user_send_changed(s->user, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); - manager_send_changed(s->manager, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL); -} - -int session_get_locked_hint(Session *s) { - assert(s); - - return s->locked_hint; -} - -void session_set_locked_hint(Session *s, bool b) { - assert(s); - - if (s->locked_hint == b) - return; - - s->locked_hint = b; - - session_send_changed(s, "LockedHint", NULL); -} - -static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents, void *userdata) { - Session *s = userdata; - - assert(s); - assert(s->fifo_fd == fd); - - /* EOF on the FIFO means the session died abnormally. */ - - session_remove_fifo(s); - session_stop(s, false); - - return 1; -} - -int session_create_fifo(Session *s) { - int r; - - assert(s); - - /* Create FIFO */ - if (!s->fifo_path) { - r = mkdir_safe_label("/run/systemd/sessions", 0755, 0, 0); - if (r < 0) - return r; - - if (asprintf(&s->fifo_path, "/run/systemd/sessions/%s.ref", s->id) < 0) - return -ENOMEM; - - if (mkfifo(s->fifo_path, 0600) < 0 && errno != EEXIST) - return -errno; - } - - /* Open reading side */ - if (s->fifo_fd < 0) { - s->fifo_fd = open(s->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY); - if (s->fifo_fd < 0) - return -errno; - - } - - if (!s->fifo_event_source) { - r = sd_event_add_io(s->manager->event, &s->fifo_event_source, s->fifo_fd, 0, session_dispatch_fifo, s); - if (r < 0) - return r; - - /* Let's make sure we noticed dead sessions before we process new bus requests (which might create new - * sessions). */ - r = sd_event_source_set_priority(s->fifo_event_source, SD_EVENT_PRIORITY_NORMAL-10); - if (r < 0) - return r; - } - - /* Open writing side */ - r = open(s->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY); - if (r < 0) - return -errno; - - return r; -} - -static void session_remove_fifo(Session *s) { - assert(s); - - s->fifo_event_source = sd_event_source_unref(s->fifo_event_source); - s->fifo_fd = safe_close(s->fifo_fd); - - if (s->fifo_path) { - unlink(s->fifo_path); - s->fifo_path = mfree(s->fifo_path); - } -} - -bool session_check_gc(Session *s, bool drop_not_started) { - assert(s); - - if (drop_not_started && !s->started) - return false; - - if (!s->user) - return false; - - if (s->fifo_fd >= 0) { - if (pipe_eof(s->fifo_fd) <= 0) - return true; - } - - if (s->scope_job && manager_job_is_active(s->manager, s->scope_job)) - return true; - - if (s->scope && manager_unit_is_active(s->manager, s->scope)) - return true; - - return false; -} - -void session_add_to_gc_queue(Session *s) { - assert(s); - - if (s->in_gc_queue) - return; - - LIST_PREPEND(gc_queue, s->manager->session_gc_queue, s); - s->in_gc_queue = true; -} - -SessionState session_get_state(Session *s) { - assert(s); - - /* always check closing first */ - if (s->stopping || s->timer_event_source) - return SESSION_CLOSING; - - if (s->scope_job || s->fifo_fd < 0) - return SESSION_OPENING; - - if (session_is_active(s)) - return SESSION_ACTIVE; - - return SESSION_ONLINE; -} - -int session_kill(Session *s, KillWho who, int signo) { - assert(s); - - if (!s->scope) - return -ESRCH; - - return manager_kill_unit(s->manager, s->scope, who, signo, NULL); -} - -static int session_open_vt(Session *s) { - char path[sizeof("/dev/tty") + DECIMAL_STR_MAX(s->vtnr)]; - - if (s->vtnr < 1) - return -ENODEV; - - if (s->vtfd >= 0) - return s->vtfd; - - sprintf(path, "/dev/tty%u", s->vtnr); - s->vtfd = open_terminal(path, O_RDWR | O_CLOEXEC | O_NONBLOCK | O_NOCTTY); - if (s->vtfd < 0) - return log_error_errno(s->vtfd, "cannot open VT %s of session %s: %m", path, s->id); - - return s->vtfd; -} - -int session_prepare_vt(Session *s) { - int vt, r; - struct vt_mode mode = { 0 }; - - if (s->vtnr < 1) - return 0; - - vt = session_open_vt(s); - if (vt < 0) - return vt; - - r = fchown(vt, s->user->uid, -1); - if (r < 0) { - r = log_error_errno(errno, - "Cannot change owner of /dev/tty%u: %m", - s->vtnr); - goto error; - } - - r = ioctl(vt, KDSKBMODE, K_OFF); - if (r < 0) { - r = log_error_errno(errno, - "Cannot set K_OFF on /dev/tty%u: %m", - s->vtnr); - goto error; - } - - r = ioctl(vt, KDSETMODE, KD_GRAPHICS); - if (r < 0) { - r = log_error_errno(errno, - "Cannot set KD_GRAPHICS on /dev/tty%u: %m", - s->vtnr); - goto error; - } - - /* Oh, thanks to the VT layer, VT_AUTO does not work with KD_GRAPHICS. - * So we need a dummy handler here which just acknowledges *all* VT - * switch requests. */ - mode.mode = VT_PROCESS; - mode.relsig = SIGRTMIN; - mode.acqsig = SIGRTMIN + 1; - r = ioctl(vt, VT_SETMODE, &mode); - if (r < 0) { - r = log_error_errno(errno, - "Cannot set VT_PROCESS on /dev/tty%u: %m", - s->vtnr); - goto error; - } - - return 0; - -error: - session_restore_vt(s); - return r; -} - -void session_restore_vt(Session *s) { - - static const struct vt_mode mode = { - .mode = VT_AUTO, - }; - - _cleanup_free_ char *utf8 = NULL; - int vt, kb, old_fd; - - /* We need to get a fresh handle to the virtual terminal, - * since the old file-descriptor is potentially in a hung-up - * state after the controlling process exited; we do a - * little dance to avoid having the terminal be available - * for reuse before we've cleaned it up. - */ - old_fd = s->vtfd; - s->vtfd = -1; - - vt = session_open_vt(s); - safe_close(old_fd); - - if (vt < 0) - return; - - (void) ioctl(vt, KDSETMODE, KD_TEXT); - - if (read_one_line_file("/sys/module/vt/parameters/default_utf8", &utf8) >= 0 && *utf8 == '1') - kb = K_UNICODE; - else - kb = K_XLATE; - - (void) ioctl(vt, KDSKBMODE, kb); - - (void) ioctl(vt, VT_SETMODE, &mode); - (void) fchown(vt, 0, (gid_t) -1); - - s->vtfd = safe_close(s->vtfd); -} - -void session_leave_vt(Session *s) { - int r; - - assert(s); - - /* This is called whenever we get a VT-switch signal from the kernel. - * We acknowledge all of them unconditionally. Note that session are - * free to overwrite those handlers and we only register them for - * sessions with controllers. Legacy sessions are not affected. - * However, if we switch from a non-legacy to a legacy session, we must - * make sure to pause all device before acknowledging the switch. We - * process the real switch only after we are notified via sysfs, so the - * legacy session might have already started using the devices. If we - * don't pause the devices before the switch, we might confuse the - * session we switch to. */ - - if (s->vtfd < 0) - return; - - session_device_pause_all(s); - r = ioctl(s->vtfd, VT_RELDISP, 1); - if (r < 0) - log_debug_errno(errno, "Cannot release VT of session %s: %m", s->id); -} - -bool session_is_controller(Session *s, const char *sender) { - assert(s); - - return streq_ptr(s->controller, sender); -} - -static void session_release_controller(Session *s, bool notify) { - _cleanup_free_ char *name = NULL; - SessionDevice *sd; - - if (!s->controller) - return; - - name = s->controller; - - /* By resetting the controller before releasing the devices, we won't - * send notification signals. This avoids sending useless notifications - * if the controller is released on disconnects. */ - if (!notify) - s->controller = NULL; - - while ((sd = hashmap_first(s->devices))) - session_device_free(sd); - - s->controller = NULL; - s->track = sd_bus_track_unref(s->track); -} - -static int on_bus_track(sd_bus_track *track, void *userdata) { - Session *s = userdata; - - assert(track); - assert(s); - - session_drop_controller(s); - - return 0; -} - -int session_set_controller(Session *s, const char *sender, bool force) { - _cleanup_free_ char *name = NULL; - int r; - - assert(s); - assert(sender); - - if (session_is_controller(s, sender)) - return 0; - if (s->controller && !force) - return -EBUSY; - - name = strdup(sender); - if (!name) - return -ENOMEM; - - s->track = sd_bus_track_unref(s->track); - r = sd_bus_track_new(s->manager->bus, &s->track, on_bus_track, s); - if (r < 0) - return r; - - r = sd_bus_track_add_name(s->track, name); - if (r < 0) - return r; - - /* When setting a session controller, we forcibly mute the VT and set - * it into graphics-mode. Applications can override that by changing - * VT state after calling TakeControl(). However, this serves as a good - * default and well-behaving controllers can now ignore VTs entirely. - * Note that we reset the VT on ReleaseControl() and if the controller - * exits. - * If logind crashes/restarts, we restore the controller during restart - * or reset the VT in case it crashed/exited, too. */ - r = session_prepare_vt(s); - if (r < 0) { - s->track = sd_bus_track_unref(s->track); - return r; - } - - session_release_controller(s, true); - s->controller = name; - name = NULL; - session_save(s); - - return 0; -} - -void session_drop_controller(Session *s) { - assert(s); - - if (!s->controller) - return; - - s->track = sd_bus_track_unref(s->track); - session_release_controller(s, false); - session_save(s); - session_restore_vt(s); -} - -static const char* const session_state_table[_SESSION_STATE_MAX] = { - [SESSION_OPENING] = "opening", - [SESSION_ONLINE] = "online", - [SESSION_ACTIVE] = "active", - [SESSION_CLOSING] = "closing" -}; - -DEFINE_STRING_TABLE_LOOKUP(session_state, SessionState); - -static const char* const session_type_table[_SESSION_TYPE_MAX] = { - [SESSION_UNSPECIFIED] = "unspecified", - [SESSION_TTY] = "tty", - [SESSION_X11] = "x11", - [SESSION_WAYLAND] = "wayland", - [SESSION_MIR] = "mir", - [SESSION_WEB] = "web", -}; - -DEFINE_STRING_TABLE_LOOKUP(session_type, SessionType); - -static const char* const session_class_table[_SESSION_CLASS_MAX] = { - [SESSION_USER] = "user", - [SESSION_GREETER] = "greeter", - [SESSION_LOCK_SCREEN] = "lock-screen", - [SESSION_BACKGROUND] = "background" -}; - -DEFINE_STRING_TABLE_LOOKUP(session_class, SessionClass); - -static const char* const kill_who_table[_KILL_WHO_MAX] = { - [KILL_LEADER] = "leader", - [KILL_ALL] = "all" -}; - -DEFINE_STRING_TABLE_LOOKUP(kill_who, KillWho); diff --git a/src/grp-login/liblogind-core/logind-session.h b/src/grp-login/liblogind-core/logind-session.h deleted file mode 100644 index 23ff6576c9..0000000000 --- a/src/grp-login/liblogind-core/logind-session.h +++ /dev/null @@ -1,186 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -typedef struct Session Session; -typedef enum KillWho KillWho; - -#include "basic/list.h" -#include "basic/login-util.h" - -#include "logind-user.h" - -typedef enum SessionState { - SESSION_OPENING, /* Session scope is being created */ - SESSION_ONLINE, /* Logged in */ - SESSION_ACTIVE, /* Logged in and in the fg */ - SESSION_CLOSING, /* Logged out, but scope is still there */ - _SESSION_STATE_MAX, - _SESSION_STATE_INVALID = -1 -} SessionState; - -typedef enum SessionClass { - SESSION_USER, - SESSION_GREETER, - SESSION_LOCK_SCREEN, - SESSION_BACKGROUND, - _SESSION_CLASS_MAX, - _SESSION_CLASS_INVALID = -1 -} SessionClass; - -typedef enum SessionType { - SESSION_UNSPECIFIED, - SESSION_TTY, - SESSION_X11, - SESSION_WAYLAND, - SESSION_MIR, - SESSION_WEB, - _SESSION_TYPE_MAX, - _SESSION_TYPE_INVALID = -1 -} SessionType; - -#define SESSION_TYPE_IS_GRAPHICAL(type) IN_SET(type, SESSION_X11, SESSION_WAYLAND, SESSION_MIR) - -enum KillWho { - KILL_LEADER, - KILL_ALL, - _KILL_WHO_MAX, - _KILL_WHO_INVALID = -1 -}; - -struct Session { - Manager *manager; - - const char *id; - unsigned int position; - SessionType type; - SessionClass class; - - char *state_file; - - User *user; - - dual_timestamp timestamp; - - char *tty; - char *display; - - bool remote; - char *remote_user; - char *remote_host; - char *service; - char *desktop; - - char *scope; - char *scope_job; - - Seat *seat; - unsigned int vtnr; - int vtfd; - - pid_t leader; - uint32_t audit_id; - - int fifo_fd; - char *fifo_path; - - sd_event_source *fifo_event_source; - - bool idle_hint; - dual_timestamp idle_hint_timestamp; - - bool locked_hint; - - bool in_gc_queue:1; - bool started:1; - bool stopping:1; - - sd_bus_message *create_message; - - sd_event_source *timer_event_source; - - char *controller; - Hashmap *devices; - sd_bus_track *track; - - LIST_FIELDS(Session, sessions_by_user); - LIST_FIELDS(Session, sessions_by_seat); - - LIST_FIELDS(Session, gc_queue); -}; - -Session *session_new(Manager *m, const char *id); -void session_free(Session *s); -void session_set_user(Session *s, User *u); -bool session_check_gc(Session *s, bool drop_not_started); -void session_add_to_gc_queue(Session *s); -int session_activate(Session *s); -bool session_is_active(Session *s); -int session_get_idle_hint(Session *s, dual_timestamp *t); -void session_set_idle_hint(Session *s, bool b); -int session_get_locked_hint(Session *s); -void session_set_locked_hint(Session *s, bool b); -int session_create_fifo(Session *s); -int session_start(Session *s); -int session_stop(Session *s, bool force); -int session_finalize(Session *s); -int session_release(Session *s); -int session_save(Session *s); -int session_load(Session *s); -int session_kill(Session *s, KillWho who, int signo); - -SessionState session_get_state(Session *u); - -extern const sd_bus_vtable session_vtable[]; -int session_node_enumerator(sd_bus *bus, const char *path,void *userdata, char ***nodes, sd_bus_error *error); -int session_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); -char *session_bus_path(Session *s); - -int session_send_signal(Session *s, bool new_session); -int session_send_changed(Session *s, const char *properties, ...) _sentinel_; -int session_send_lock(Session *s, bool lock); -int session_send_lock_all(Manager *m, bool lock); - -int session_send_create_reply(Session *s, sd_bus_error *error); - -const char* session_state_to_string(SessionState t) _const_; -SessionState session_state_from_string(const char *s) _pure_; - -const char* session_type_to_string(SessionType t) _const_; -SessionType session_type_from_string(const char *s) _pure_; - -const char* session_class_to_string(SessionClass t) _const_; -SessionClass session_class_from_string(const char *s) _pure_; - -const char *kill_who_to_string(KillWho k) _const_; -KillWho kill_who_from_string(const char *s) _pure_; - -int session_prepare_vt(Session *s); -void session_restore_vt(Session *s); -void session_leave_vt(Session *s); - -bool session_is_controller(Session *s, const char *sender); -int session_set_controller(Session *s, const char *sender, bool force); -void session_drop_controller(Session *s); - -int bus_session_method_activate(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_session_method_lock(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_session_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_session_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error); diff --git a/src/grp-login/liblogind-core/logind-user-dbus.c b/src/grp-login/liblogind-core/logind-user-dbus.c deleted file mode 100644 index d82ced605e..0000000000 --- a/src/grp-login/liblogind-core/logind-user-dbus.c +++ /dev/null @@ -1,399 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> - -#include "basic/alloc-util.h" -#include "basic/formats-util.h" -#include "basic/signal-util.h" -#include "basic/strv.h" -#include "basic/user-util.h" -#include "logind.h" -#include "shared/bus-util.h" - -#include "logind-user.h" - -static int property_get_display( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_free_ char *p = NULL; - User *u = userdata; - - assert(bus); - assert(reply); - assert(u); - - p = u->display ? session_bus_path(u->display) : strdup("/"); - if (!p) - return -ENOMEM; - - return sd_bus_message_append(reply, "(so)", u->display ? u->display->id : "", p); -} - -static int property_get_state( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - User *u = userdata; - - assert(bus); - assert(reply); - assert(u); - - return sd_bus_message_append(reply, "s", user_state_to_string(user_get_state(u))); -} - -static int property_get_sessions( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - User *u = userdata; - Session *session; - int r; - - assert(bus); - assert(reply); - assert(u); - - r = sd_bus_message_open_container(reply, 'a', "(so)"); - if (r < 0) - return r; - - LIST_FOREACH(sessions_by_user, session, u->sessions) { - _cleanup_free_ char *p = NULL; - - p = session_bus_path(session); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(so)", session->id, p); - if (r < 0) - return r; - - } - - return sd_bus_message_close_container(reply); -} - -static int property_get_idle_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - User *u = userdata; - - assert(bus); - assert(reply); - assert(u); - - return sd_bus_message_append(reply, "b", user_get_idle_hint(u, NULL) > 0); -} - -static int property_get_idle_since_hint( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - User *u = userdata; - dual_timestamp t = DUAL_TIMESTAMP_NULL; - uint64_t k; - - assert(bus); - assert(reply); - assert(u); - - user_get_idle_hint(u, &t); - k = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; - - return sd_bus_message_append(reply, "t", k); -} - -static int property_get_linger( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - User *u = userdata; - int r; - - assert(bus); - assert(reply); - assert(u); - - r = user_check_linger_file(u); - - return sd_bus_message_append(reply, "b", r > 0); -} - -int bus_user_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - User *u = userdata; - int r; - - assert(message); - assert(u); - - r = bus_verify_polkit_async( - message, - CAP_KILL, - "org.freedesktop.login1.manage", - NULL, - false, - u->uid, - &u->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = user_stop(u, true); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_user_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { - User *u = userdata; - int32_t signo; - int r; - - assert(message); - assert(u); - - r = bus_verify_polkit_async( - message, - CAP_KILL, - "org.freedesktop.login1.manage", - NULL, - false, - u->uid, - &u->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = sd_bus_message_read(message, "i", &signo); - if (r < 0) - return r; - - if (!SIGNAL_VALID(signo)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); - - r = user_kill(u, signo); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -const sd_bus_vtable user_vtable[] = { - SD_BUS_VTABLE_START(0), - - SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(User, uid), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(User, gid), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Name", "s", NULL, offsetof(User, name), SD_BUS_VTABLE_PROPERTY_CONST), - BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(User, timestamp), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("RuntimePath", "s", NULL, offsetof(User, runtime_path), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Service", "s", NULL, offsetof(User, service), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Slice", "s", NULL, offsetof(User, slice), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Display", "(so)", property_get_display, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), - SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, 0), - SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), - SD_BUS_PROPERTY("Linger", "b", property_get_linger, 0, 0), - - SD_BUS_METHOD("Terminate", NULL, NULL, bus_user_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Kill", "i", NULL, bus_user_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), - - SD_BUS_VTABLE_END -}; - -int user_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { - Manager *m = userdata; - uid_t uid; - User *user; - int r; - - assert(bus); - assert(path); - assert(interface); - assert(found); - assert(m); - - if (streq(path, "/org/freedesktop/login1/user/self")) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - sd_bus_message *message; - - message = sd_bus_get_current_message(bus); - if (!message) - return 0; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_owner_uid(creds, &uid); - } else { - const char *p; - - p = startswith(path, "/org/freedesktop/login1/user/_"); - if (!p) - return 0; - - r = parse_uid(p, &uid); - } - if (r < 0) - return 0; - - user = hashmap_get(m->users, UID_TO_PTR(uid)); - if (!user) - return 0; - - *found = user; - return 1; -} - -char *user_bus_path(User *u) { - char *s; - - assert(u); - - if (asprintf(&s, "/org/freedesktop/login1/user/_"UID_FMT, u->uid) < 0) - return NULL; - - return s; -} - -int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { - _cleanup_strv_free_ char **l = NULL; - sd_bus_message *message; - Manager *m = userdata; - User *user; - Iterator i; - int r; - - assert(bus); - assert(path); - assert(nodes); - - HASHMAP_FOREACH(user, m->users, i) { - char *p; - - p = user_bus_path(user); - if (!p) - return -ENOMEM; - - r = strv_consume(&l, p); - if (r < 0) - return r; - } - - message = sd_bus_get_current_message(bus); - if (message) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - uid_t uid; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); - if (r >= 0) { - r = sd_bus_creds_get_owner_uid(creds, &uid); - if (r >= 0) { - user = hashmap_get(m->users, UID_TO_PTR(uid)); - if (user) { - r = strv_extend(&l, "/org/freedesktop/login1/user/self"); - if (r < 0) - return r; - } - } - } - } - - *nodes = l; - l = NULL; - - return 1; -} - -int user_send_signal(User *u, bool new_user) { - _cleanup_free_ char *p = NULL; - - assert(u); - - p = user_bus_path(u); - if (!p) - return -ENOMEM; - - return sd_bus_emit_signal( - u->manager->bus, - "/org/freedesktop/login1", - "org.freedesktop.login1.Manager", - new_user ? "UserNew" : "UserRemoved", - "uo", (uint32_t) u->uid, p); -} - -int user_send_changed(User *u, const char *properties, ...) { - _cleanup_free_ char *p = NULL; - char **l; - - assert(u); - - if (!u->started) - return 0; - - p = user_bus_path(u); - if (!p) - return -ENOMEM; - - l = strv_from_stdarg_alloca(properties); - - return sd_bus_emit_properties_changed_strv(u->manager->bus, p, "org.freedesktop.login1.User", l); -} diff --git a/src/grp-login/liblogind-core/logind-user.c b/src/grp-login/liblogind-core/logind-user.c deleted file mode 100644 index 015276efc8..0000000000 --- a/src/grp-login/liblogind-core/logind-user.c +++ /dev/null @@ -1,886 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <string.h> -#include <sys/mount.h> -#include <unistd.h> - -#include "basic/alloc-util.h" -#include "basic/escape.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/fs-util.h" -#include "basic/hashmap.h" -#include "basic/label.h" -#include "basic/mkdir.h" -#include "basic/mount-util.h" -#include "basic/parse-util.h" -#include "basic/path-util.h" -#include "basic/rm-rf.h" -#include "basic/smack-util.h" -#include "basic/special.h" -#include "basic/stdio-util.h" -#include "basic/string-table.h" -#include "basic/unit-name.h" -#include "basic/user-util.h" -#include "basic/util.h" -#include "sd-bus/bus-common-errors.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" -#include "shared/clean-ipc.h" -#include "shared/conf-parser.h" - -#include "logind-user.h" - -int user_new(User **out, Manager *m, uid_t uid, gid_t gid, const char *name) { - _cleanup_(user_freep) User *u = NULL; - char lu[DECIMAL_STR_MAX(uid_t) + 1]; - int r; - - assert(out); - assert(m); - assert(name); - - u = new0(User, 1); - if (!u) - return -ENOMEM; - - u->manager = m; - u->uid = uid; - u->gid = gid; - xsprintf(lu, UID_FMT, uid); - - u->name = strdup(name); - if (!u->name) - return -ENOMEM; - - if (asprintf(&u->state_file, "/run/systemd/users/"UID_FMT, uid) < 0) - return -ENOMEM; - - if (asprintf(&u->runtime_path, "/run/user/"UID_FMT, uid) < 0) - return -ENOMEM; - - r = slice_build_subslice(SPECIAL_USER_SLICE, lu, &u->slice); - if (r < 0) - return r; - - r = unit_name_build("user", lu, ".service", &u->service); - if (r < 0) - return r; - - r = hashmap_put(m->users, UID_TO_PTR(uid), u); - if (r < 0) - return r; - - r = hashmap_put(m->user_units, u->slice, u); - if (r < 0) - return r; - - r = hashmap_put(m->user_units, u->service, u); - if (r < 0) - return r; - - *out = u; - u = NULL; - return 0; -} - -User *user_free(User *u) { - if (!u) - return NULL; - - if (u->in_gc_queue) - LIST_REMOVE(gc_queue, u->manager->user_gc_queue, u); - - while (u->sessions) - session_free(u->sessions); - - if (u->service) - hashmap_remove_value(u->manager->user_units, u->service, u); - - if (u->slice) - hashmap_remove_value(u->manager->user_units, u->slice, u); - - hashmap_remove_value(u->manager->users, UID_TO_PTR(u->uid), u); - - u->slice_job = mfree(u->slice_job); - u->service_job = mfree(u->service_job); - - u->service = mfree(u->service); - u->slice = mfree(u->slice); - u->runtime_path = mfree(u->runtime_path); - u->state_file = mfree(u->state_file); - u->name = mfree(u->name); - - return mfree(u); -} - -static int user_save_internal(User *u) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(u); - assert(u->state_file); - - r = mkdir_safe_label("/run/systemd/users", 0755, 0, 0); - if (r < 0) - goto fail; - - r = fopen_temporary(u->state_file, &f, &temp_path); - if (r < 0) - goto fail; - - fchmod(fileno(f), 0644); - - fprintf(f, - "# This is private data. Do not parse.\n" - "NAME=%s\n" - "STATE=%s\n", - u->name, - user_state_to_string(user_get_state(u))); - - /* LEGACY: no-one reads RUNTIME= anymore, drop it at some point */ - if (u->runtime_path) - fprintf(f, "RUNTIME=%s\n", u->runtime_path); - - if (u->service_job) - fprintf(f, "SERVICE_JOB=%s\n", u->service_job); - - if (u->slice_job) - fprintf(f, "SLICE_JOB=%s\n", u->slice_job); - - if (u->display) - fprintf(f, "DISPLAY=%s\n", u->display->id); - - if (dual_timestamp_is_set(&u->timestamp)) - fprintf(f, - "REALTIME="USEC_FMT"\n" - "MONOTONIC="USEC_FMT"\n", - u->timestamp.realtime, - u->timestamp.monotonic); - - if (u->sessions) { - Session *i; - bool first; - - fputs("SESSIONS=", f); - first = true; - LIST_FOREACH(sessions_by_user, i, u->sessions) { - if (first) - first = false; - else - fputc(' ', f); - - fputs(i->id, f); - } - - fputs("\nSEATS=", f); - first = true; - LIST_FOREACH(sessions_by_user, i, u->sessions) { - if (!i->seat) - continue; - - if (first) - first = false; - else - fputc(' ', f); - - fputs(i->seat->id, f); - } - - fputs("\nACTIVE_SESSIONS=", f); - first = true; - LIST_FOREACH(sessions_by_user, i, u->sessions) { - if (!session_is_active(i)) - continue; - - if (first) - first = false; - else - fputc(' ', f); - - fputs(i->id, f); - } - - fputs("\nONLINE_SESSIONS=", f); - first = true; - LIST_FOREACH(sessions_by_user, i, u->sessions) { - if (session_get_state(i) == SESSION_CLOSING) - continue; - - if (first) - first = false; - else - fputc(' ', f); - - fputs(i->id, f); - } - - fputs("\nACTIVE_SEATS=", f); - first = true; - LIST_FOREACH(sessions_by_user, i, u->sessions) { - if (!session_is_active(i) || !i->seat) - continue; - - if (first) - first = false; - else - fputc(' ', f); - - fputs(i->seat->id, f); - } - - fputs("\nONLINE_SEATS=", f); - first = true; - LIST_FOREACH(sessions_by_user, i, u->sessions) { - if (session_get_state(i) == SESSION_CLOSING || !i->seat) - continue; - - if (first) - first = false; - else - fputc(' ', f); - - fputs(i->seat->id, f); - } - fputc('\n', f); - } - - r = fflush_and_check(f); - if (r < 0) - goto fail; - - if (rename(temp_path, u->state_file) < 0) { - r = -errno; - goto fail; - } - - return 0; - -fail: - (void) unlink(u->state_file); - - if (temp_path) - (void) unlink(temp_path); - - return log_error_errno(r, "Failed to save user data %s: %m", u->state_file); -} - -int user_save(User *u) { - assert(u); - - if (!u->started) - return 0; - - return user_save_internal (u); -} - -int user_load(User *u) { - _cleanup_free_ char *display = NULL, *realtime = NULL, *monotonic = NULL; - Session *s = NULL; - int r; - - assert(u); - - r = parse_env_file(u->state_file, NEWLINE, - "SERVICE_JOB", &u->service_job, - "SLICE_JOB", &u->slice_job, - "DISPLAY", &display, - "REALTIME", &realtime, - "MONOTONIC", &monotonic, - NULL); - if (r < 0) { - if (r == -ENOENT) - return 0; - - log_error_errno(r, "Failed to read %s: %m", u->state_file); - return r; - } - - if (display) - s = hashmap_get(u->manager->sessions, display); - - if (s && s->display && display_is_local(s->display)) - u->display = s; - - if (realtime) - timestamp_deserialize(realtime, &u->timestamp.realtime); - if (monotonic) - timestamp_deserialize(monotonic, &u->timestamp.monotonic); - - return r; -} - -static int user_mkdir_runtime_path(User *u) { - int r; - - assert(u); - - r = mkdir_safe_label("/run/user", 0755, 0, 0); - if (r < 0) - return log_error_errno(r, "Failed to create /run/user: %m"); - - if (path_is_mount_point(u->runtime_path, 0) <= 0) { - _cleanup_free_ char *t = NULL; - - (void) mkdir_label(u->runtime_path, 0700); - - if (mac_smack_use()) - r = asprintf(&t, "mode=0700,smackfsroot=*,uid=" UID_FMT ",gid=" GID_FMT ",size=%zu", u->uid, u->gid, u->manager->runtime_dir_size); - else - r = asprintf(&t, "mode=0700,uid=" UID_FMT ",gid=" GID_FMT ",size=%zu", u->uid, u->gid, u->manager->runtime_dir_size); - if (r < 0) { - r = log_oom(); - goto fail; - } - - r = mount("tmpfs", u->runtime_path, "tmpfs", MS_NODEV|MS_NOSUID, t); - if (r < 0) { - if (errno != EPERM) { - r = log_error_errno(errno, "Failed to mount per-user tmpfs directory %s: %m", u->runtime_path); - goto fail; - } - - /* Lacking permissions, maybe - * CAP_SYS_ADMIN-less container? In this case, - * just use a normal directory. */ - - r = chmod_and_chown(u->runtime_path, 0700, u->uid, u->gid); - if (r < 0) { - log_error_errno(r, "Failed to change runtime directory ownership and mode: %m"); - goto fail; - } - } - - r = label_fix(u->runtime_path, false, false); - if (r < 0) - log_warning_errno(r, "Failed to fix label of '%s', ignoring: %m", u->runtime_path); - } - - return 0; - -fail: - /* Try to clean up, but ignore errors */ - (void) rmdir(u->runtime_path); - return r; -} - -static int user_start_slice(User *u) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - const char *description; - char *job; - int r; - - assert(u); - - u->slice_job = mfree(u->slice_job); - description = strjoina("User Slice of ", u->name); - - r = manager_start_slice( - u->manager, - u->slice, - description, - "systemd-logind.service", - "systemd-user-sessions.service", - u->manager->user_tasks_max, - &error, - &job); - if (r >= 0) - u->slice_job = job; - else if (!sd_bus_error_has_name(&error, BUS_ERROR_UNIT_EXISTS)) - /* we don't fail due to this, let's try to continue */ - log_error_errno(r, "Failed to start user slice %s, ignoring: %s (%s)", - u->slice, bus_error_message(&error, r), error.name); - - return 0; -} - -static int user_start_service(User *u) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char *job; - int r; - - assert(u); - - u->service_job = mfree(u->service_job); - - r = manager_start_unit( - u->manager, - u->service, - &error, - &job); - if (r < 0) { - /* we don't fail due to this, let's try to continue */ - log_error_errno(r, "Failed to start user service, ignoring: %s", bus_error_message(&error, r)); - } else { - u->service_job = job; - } - - return 0; -} - -int user_start(User *u) { - int r; - - assert(u); - - if (u->started && !u->stopping) - return 0; - - /* - * If u->stopping is set, the user is marked for removal and the slice - * and service stop-jobs are queued. We have to clear that flag before - * queing the start-jobs again. If they succeed, the user object can be - * re-used just fine (pid1 takes care of job-ordering and proper - * restart), but if they fail, we want to force another user_stop() so - * possibly pending units are stopped. - * Note that we don't clear u->started, as we have no clue what state - * the user is in on failure here. Hence, we pretend the user is - * running so it will be properly taken down by GC. However, we clearly - * return an error from user_start() in that case, so no further - * reference to the user is taken. - */ - u->stopping = false; - - if (!u->started) { - log_debug("New user %s logged in.", u->name); - - /* Make XDG_RUNTIME_DIR */ - r = user_mkdir_runtime_path(u); - if (r < 0) - return r; - } - - /* Create cgroup */ - r = user_start_slice(u); - if (r < 0) - return r; - - /* Save the user data so far, because pam_systemd will read the - * XDG_RUNTIME_DIR out of it while starting up systemd --user. - * We need to do user_save_internal() because we have not - * "officially" started yet. */ - user_save_internal(u); - - /* Spawn user systemd */ - r = user_start_service(u); - if (r < 0) - return r; - - if (!u->started) { - if (!dual_timestamp_is_set(&u->timestamp)) - dual_timestamp_get(&u->timestamp); - user_send_signal(u, true); - u->started = true; - } - - /* Save new user data */ - user_save(u); - - return 0; -} - -static int user_stop_slice(User *u) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char *job; - int r; - - assert(u); - - r = manager_stop_unit(u->manager, u->slice, &error, &job); - if (r < 0) { - log_error("Failed to stop user slice: %s", bus_error_message(&error, r)); - return r; - } - - free(u->slice_job); - u->slice_job = job; - - return r; -} - -static int user_stop_service(User *u) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char *job; - int r; - - assert(u); - - r = manager_stop_unit(u->manager, u->service, &error, &job); - if (r < 0) { - log_error("Failed to stop user service: %s", bus_error_message(&error, r)); - return r; - } - - free(u->service_job); - u->service_job = job; - - return r; -} - -static int user_remove_runtime_path(User *u) { - int r; - - assert(u); - - r = rm_rf(u->runtime_path, 0); - if (r < 0) - log_error_errno(r, "Failed to remove runtime directory %s: %m", u->runtime_path); - - /* Ignore cases where the directory isn't mounted, as that's - * quite possible, if we lacked the permissions to mount - * something */ - r = umount2(u->runtime_path, MNT_DETACH); - if (r < 0 && errno != EINVAL && errno != ENOENT) - log_error_errno(errno, "Failed to unmount user runtime directory %s: %m", u->runtime_path); - - r = rm_rf(u->runtime_path, REMOVE_ROOT); - if (r < 0) - log_error_errno(r, "Failed to remove runtime directory %s: %m", u->runtime_path); - - return r; -} - -int user_stop(User *u, bool force) { - Session *s; - int r = 0, k; - assert(u); - - /* Stop jobs have already been queued */ - if (u->stopping) { - user_save(u); - return r; - } - - LIST_FOREACH(sessions_by_user, s, u->sessions) { - k = session_stop(s, force); - if (k < 0) - r = k; - } - - /* Kill systemd */ - k = user_stop_service(u); - if (k < 0) - r = k; - - /* Kill cgroup */ - k = user_stop_slice(u); - if (k < 0) - r = k; - - u->stopping = true; - - user_save(u); - - return r; -} - -int user_finalize(User *u) { - Session *s; - int r = 0, k; - - assert(u); - - if (u->started) - log_debug("User %s logged out.", u->name); - - LIST_FOREACH(sessions_by_user, s, u->sessions) { - k = session_finalize(s); - if (k < 0) - r = k; - } - - /* Kill XDG_RUNTIME_DIR */ - k = user_remove_runtime_path(u); - if (k < 0) - r = k; - - /* Clean SysV + POSIX IPC objects */ - if (u->manager->remove_ipc) { - k = clean_ipc(u->uid); - if (k < 0) - r = k; - } - - unlink(u->state_file); - user_add_to_gc_queue(u); - - if (u->started) { - user_send_signal(u, false); - u->started = false; - } - - return r; -} - -int user_get_idle_hint(User *u, dual_timestamp *t) { - Session *s; - bool idle_hint = true; - dual_timestamp ts = DUAL_TIMESTAMP_NULL; - - assert(u); - - LIST_FOREACH(sessions_by_user, s, u->sessions) { - dual_timestamp k; - int ih; - - ih = session_get_idle_hint(s, &k); - if (ih < 0) - return ih; - - if (!ih) { - if (!idle_hint) { - if (k.monotonic < ts.monotonic) - ts = k; - } else { - idle_hint = false; - ts = k; - } - } else if (idle_hint) { - - if (k.monotonic > ts.monotonic) - ts = k; - } - } - - if (t) - *t = ts; - - return idle_hint; -} - -int user_check_linger_file(User *u) { - _cleanup_free_ char *cc = NULL; - char *p = NULL; - - cc = cescape(u->name); - if (!cc) - return -ENOMEM; - - p = strjoina("/var/lib/systemd/linger/", cc); - - return access(p, F_OK) >= 0; -} - -bool user_check_gc(User *u, bool drop_not_started) { - assert(u); - - if (drop_not_started && !u->started) - return false; - - if (u->sessions) - return true; - - if (user_check_linger_file(u) > 0) - return true; - - if (u->slice_job && manager_job_is_active(u->manager, u->slice_job)) - return true; - - if (u->service_job && manager_job_is_active(u->manager, u->service_job)) - return true; - - return false; -} - -void user_add_to_gc_queue(User *u) { - assert(u); - - if (u->in_gc_queue) - return; - - LIST_PREPEND(gc_queue, u->manager->user_gc_queue, u); - u->in_gc_queue = true; -} - -UserState user_get_state(User *u) { - Session *i; - - assert(u); - - if (u->stopping) - return USER_CLOSING; - - if (!u->started || u->slice_job || u->service_job) - return USER_OPENING; - - if (u->sessions) { - bool all_closing = true; - - LIST_FOREACH(sessions_by_user, i, u->sessions) { - SessionState state; - - state = session_get_state(i); - if (state == SESSION_ACTIVE) - return USER_ACTIVE; - if (state != SESSION_CLOSING) - all_closing = false; - } - - return all_closing ? USER_CLOSING : USER_ONLINE; - } - - if (user_check_linger_file(u) > 0) - return USER_LINGERING; - - return USER_CLOSING; -} - -int user_kill(User *u, int signo) { - assert(u); - - return manager_kill_unit(u->manager, u->slice, KILL_ALL, signo, NULL); -} - -static bool elect_display_filter(Session *s) { - /* Return true if the session is a candidate for the user’s ‘primary - * session’ or ‘display’. */ - assert(s); - - return (s->class == SESSION_USER && !s->stopping); -} - -static int elect_display_compare(Session *s1, Session *s2) { - /* Indexed by SessionType. Lower numbers mean more preferred. */ - const int type_ranks[_SESSION_TYPE_MAX] = { - [SESSION_UNSPECIFIED] = 0, - [SESSION_TTY] = -2, - [SESSION_X11] = -3, - [SESSION_WAYLAND] = -3, - [SESSION_MIR] = -3, - [SESSION_WEB] = -1, - }; - - /* Calculate the partial order relationship between s1 and s2, - * returning < 0 if s1 is preferred as the user’s ‘primary session’, - * 0 if s1 and s2 are equally preferred or incomparable, or > 0 if s2 - * is preferred. - * - * s1 or s2 may be NULL. */ - if (!s1 && !s2) - return 0; - - if ((s1 == NULL) != (s2 == NULL)) - return (s1 == NULL) - (s2 == NULL); - - if (s1->stopping != s2->stopping) - return s1->stopping - s2->stopping; - - if ((s1->class != SESSION_USER) != (s2->class != SESSION_USER)) - return (s1->class != SESSION_USER) - (s2->class != SESSION_USER); - - if ((s1->type == _SESSION_TYPE_INVALID) != (s2->type == _SESSION_TYPE_INVALID)) - return (s1->type == _SESSION_TYPE_INVALID) - (s2->type == _SESSION_TYPE_INVALID); - - if (s1->type != s2->type) - return type_ranks[s1->type] - type_ranks[s2->type]; - - return 0; -} - -void user_elect_display(User *u) { - Session *s; - - assert(u); - - /* This elects a primary session for each user, which we call - * the "display". We try to keep the assignment stable, but we - * "upgrade" to better choices. */ - log_debug("Electing new display for user %s", u->name); - - LIST_FOREACH(sessions_by_user, s, u->sessions) { - if (!elect_display_filter(s)) { - log_debug("Ignoring session %s", s->id); - continue; - } - - if (elect_display_compare(s, u->display) < 0) { - log_debug("Choosing session %s in preference to %s", s->id, u->display ? u->display->id : "-"); - u->display = s; - } - } -} - -static const char* const user_state_table[_USER_STATE_MAX] = { - [USER_OFFLINE] = "offline", - [USER_OPENING] = "opening", - [USER_LINGERING] = "lingering", - [USER_ONLINE] = "online", - [USER_ACTIVE] = "active", - [USER_CLOSING] = "closing" -}; - -DEFINE_STRING_TABLE_LOOKUP(user_state, UserState); - -int config_parse_tmpfs_size( - const char* unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - size_t *sz = data; - const char *e; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - e = endswith(rvalue, "%"); - if (e) { - unsigned long ul; - char *f; - - errno = 0; - ul = strtoul(rvalue, &f, 10); - if (errno > 0 || f != e) { - log_syntax(unit, LOG_ERR, filename, line, errno, "Failed to parse percentage value, ignoring: %s", rvalue); - return 0; - } - - if (ul <= 0 || ul >= 100) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Percentage value out of range, ignoring: %s", rvalue); - return 0; - } - - *sz = PAGE_ALIGN((size_t) ((physical_memory() * (uint64_t) ul) / (uint64_t) 100)); - } else { - uint64_t k; - - r = parse_size(rvalue, 1024, &k); - if (r < 0 || (uint64_t) (size_t) k != k) { - log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue); - return 0; - } - - *sz = PAGE_ALIGN((size_t) k); - } - - return 0; -} diff --git a/src/grp-login/liblogind-core/logind-user.h b/src/grp-login/liblogind-core/logind-user.h deleted file mode 100644 index b23c59fa1d..0000000000 --- a/src/grp-login/liblogind-core/logind-user.h +++ /dev/null @@ -1,94 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "basic/list.h" - -typedef struct User User; - -#include "logind.h" - -typedef enum UserState { - USER_OFFLINE, /* Not logged in at all */ - USER_OPENING, /* Is logging in */ - USER_LINGERING, /* Lingering has been enabled by the admin for this user */ - USER_ONLINE, /* User logged in */ - USER_ACTIVE, /* User logged in and has a session in the fg */ - USER_CLOSING, /* User logged out, but processes still remain and lingering is not enabled */ - _USER_STATE_MAX, - _USER_STATE_INVALID = -1 -} UserState; - -struct User { - Manager *manager; - uid_t uid; - gid_t gid; - char *name; - char *state_file; - char *runtime_path; - char *slice; - char *service; - - char *service_job; - char *slice_job; - - Session *display; - - dual_timestamp timestamp; - - bool in_gc_queue:1; - bool started:1; - bool stopping:1; - - LIST_HEAD(Session, sessions); - LIST_FIELDS(User, gc_queue); -}; - -int user_new(User **out, Manager *m, uid_t uid, gid_t gid, const char *name); -User *user_free(User *u); - -DEFINE_TRIVIAL_CLEANUP_FUNC(User *, user_free); - -bool user_check_gc(User *u, bool drop_not_started); -void user_add_to_gc_queue(User *u); -int user_start(User *u); -int user_stop(User *u, bool force); -int user_finalize(User *u); -UserState user_get_state(User *u); -int user_get_idle_hint(User *u, dual_timestamp *t); -int user_save(User *u); -int user_load(User *u); -int user_kill(User *u, int signo); -int user_check_linger_file(User *u); -void user_elect_display(User *u); - -extern const sd_bus_vtable user_vtable[]; -int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); -int user_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); -char *user_bus_path(User *s); - -int user_send_signal(User *u, bool new_user); -int user_send_changed(User *u, const char *properties, ...) _sentinel_; - -const char* user_state_to_string(UserState s) _const_; -UserState user_state_from_string(const char *s) _pure_; - -int bus_user_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_user_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error); diff --git a/src/grp-login/liblogind-core/logind-utmp.c b/src/grp-login/liblogind-core/logind-utmp.c deleted file mode 100644 index c5dc137d61..0000000000 --- a/src/grp-login/liblogind-core/logind-utmp.c +++ /dev/null @@ -1,183 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2015 Daniel Mack - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <pwd.h> -#include <string.h> -#include <unistd.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/audit-util.h" -#include "basic/formats-util.h" -#include "basic/special.h" -#include "basic/strv.h" -#include "basic/unit-name.h" -#include "basic/user-util.h" -#include "logind.h" -#include "sd-bus/bus-common-errors.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" -#include "shared/utmp-wtmp.h" - -_const_ static usec_t when_wall(usec_t n, usec_t elapse) { - - usec_t left; - unsigned int i; - static const int wall_timers[] = { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, - 25, 40, 55, 70, 100, 130, 150, 180, - }; - - /* If the time is already passed, then don't announce */ - if (n >= elapse) - return 0; - - left = elapse - n; - - for (i = 1; i < ELEMENTSOF(wall_timers); i++) - if (wall_timers[i] * USEC_PER_MINUTE >= left) - return left - wall_timers[i-1] * USEC_PER_MINUTE; - - return left % USEC_PER_HOUR; -} - -bool logind_wall_tty_filter(const char *tty, void *userdata) { - - Manager *m = userdata; - - assert(m); - - if (!startswith(tty, "/dev/") || !m->scheduled_shutdown_tty) - return true; - - return !streq(tty + 5, m->scheduled_shutdown_tty); -} - -static int warn_wall(Manager *m, usec_t n) { - char date[FORMAT_TIMESTAMP_MAX] = {}; - _cleanup_free_ char *l = NULL; - usec_t left; - int r; - - assert(m); - - if (!m->enable_wall_messages) - return 0; - - left = m->scheduled_shutdown_timeout > n; - - r = asprintf(&l, "%s%sThe system is going down for %s %s%s!", - strempty(m->wall_message), - isempty(m->wall_message) ? "" : "\n", - m->scheduled_shutdown_type, - left ? "at " : "NOW", - left ? format_timestamp(date, sizeof(date), m->scheduled_shutdown_timeout) : ""); - if (r < 0) { - log_oom(); - return 0; - } - - utmp_wall(l, uid_to_name(m->scheduled_shutdown_uid), - m->scheduled_shutdown_tty, logind_wall_tty_filter, m); - - return 1; -} - -static int wall_message_timeout_handler( - sd_event_source *s, - uint64_t usec, - void *userdata) { - - Manager *m = userdata; - usec_t n, next; - int r; - - assert(m); - assert(s == m->wall_message_timeout_source); - - n = now(CLOCK_REALTIME); - - r = warn_wall(m, n); - if (r == 0) - return 0; - - next = when_wall(n, m->scheduled_shutdown_timeout); - if (next > 0) { - r = sd_event_source_set_time(s, n + next); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_time() failed. %m"); - - r = sd_event_source_set_enabled(s, SD_EVENT_ONESHOT); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_enabled() failed. %m"); - } - - return 0; -} - -int manager_setup_wall_message_timer(Manager *m) { - - usec_t n, elapse; - int r; - - assert(m); - - n = now(CLOCK_REALTIME); - elapse = m->scheduled_shutdown_timeout; - - /* wall message handling */ - - if (isempty(m->scheduled_shutdown_type)) { - warn_wall(m, n); - return 0; - } - - if (elapse < n) - return 0; - - /* Warn immediately if less than 15 minutes are left */ - if (elapse - n < 15 * USEC_PER_MINUTE) { - r = warn_wall(m, n); - if (r == 0) - return 0; - } - - elapse = when_wall(n, elapse); - if (elapse == 0) - return 0; - - if (m->wall_message_timeout_source) { - r = sd_event_source_set_time(m->wall_message_timeout_source, n + elapse); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_time() failed. %m"); - - r = sd_event_source_set_enabled(m->wall_message_timeout_source, SD_EVENT_ONESHOT); - if (r < 0) - return log_error_errno(r, "sd_event_source_set_enabled() failed. %m"); - } else { - r = sd_event_add_time(m->event, &m->wall_message_timeout_source, - CLOCK_REALTIME, n + elapse, 0, wall_message_timeout_handler, m); - if (r < 0) - return log_error_errno(r, "sd_event_add_time() failed. %m"); - } - - return 0; -} diff --git a/src/grp-login/liblogind-core/logind.h b/src/grp-login/liblogind-core/logind.h deleted file mode 100644 index effc498118..0000000000 --- a/src/grp-login/liblogind-core/logind.h +++ /dev/null @@ -1,198 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2011 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdbool.h> - -#include <libudev.h> -#include <systemd/sd-bus.h> -#include <systemd/sd-event.h> - -#include "basic/hashmap.h" -#include "basic/list.h" -#include "basic/set.h" - -typedef struct Manager Manager; - -#include "logind-action.h" -#include "logind-button.h" -#include "logind-device.h" -#include "logind-inhibit.h" - -struct Manager { - sd_event *event; - sd_bus *bus; - - Hashmap *devices; - Hashmap *seats; - Hashmap *sessions; - Hashmap *users; - Hashmap *inhibitors; - Hashmap *buttons; - - LIST_HEAD(Seat, seat_gc_queue); - LIST_HEAD(Session, session_gc_queue); - LIST_HEAD(User, user_gc_queue); - - struct udev *udev; - struct udev_monitor *udev_seat_monitor, *udev_device_monitor, *udev_vcsa_monitor, *udev_button_monitor; - - sd_event_source *console_active_event_source; - sd_event_source *udev_seat_event_source; - sd_event_source *udev_device_event_source; - sd_event_source *udev_vcsa_event_source; - sd_event_source *udev_button_event_source; - - int console_active_fd; - - unsigned n_autovts; - - unsigned reserve_vt; - int reserve_vt_fd; - - Seat *seat0; - - char **kill_only_users, **kill_exclude_users; - bool kill_user_processes; - - unsigned long session_counter; - unsigned long inhibit_counter; - - Hashmap *session_units; - Hashmap *user_units; - - usec_t inhibit_delay_max; - - /* If an action is currently being executed or is delayed, - * this is != 0 and encodes what is being done */ - InhibitWhat action_what; - - /* If a shutdown/suspend was delayed due to a inhibitor this - contains the unit name we are supposed to start after the - delay is over */ - const char *action_unit; - - /* If a shutdown/suspend is currently executed, then this is - * the job of it */ - char *action_job; - sd_event_source *inhibit_timeout_source; - - char *scheduled_shutdown_type; - usec_t scheduled_shutdown_timeout; - sd_event_source *scheduled_shutdown_timeout_source; - uid_t scheduled_shutdown_uid; - char *scheduled_shutdown_tty; - sd_event_source *nologin_timeout_source; - bool unlink_nologin; - - char *wall_message; - unsigned enable_wall_messages; - sd_event_source *wall_message_timeout_source; - - bool shutdown_dry_run; - - sd_event_source *idle_action_event_source; - usec_t idle_action_usec; - usec_t idle_action_not_before_usec; - HandleAction idle_action; - - HandleAction handle_power_key; - HandleAction handle_suspend_key; - HandleAction handle_hibernate_key; - HandleAction handle_lid_switch; - HandleAction handle_lid_switch_docked; - - bool power_key_ignore_inhibited; - bool suspend_key_ignore_inhibited; - bool hibernate_key_ignore_inhibited; - bool lid_switch_ignore_inhibited; - - bool remove_ipc; - - Hashmap *polkit_registry; - - usec_t holdoff_timeout_usec; - sd_event_source *lid_switch_ignore_event_source; - - size_t runtime_dir_size; - uint64_t user_tasks_max; - uint64_t sessions_max; - uint64_t inhibitors_max; -}; - -int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device); -int manager_add_button(Manager *m, const char *name, Button **_button); -int manager_add_seat(Manager *m, const char *id, Seat **_seat); -int manager_add_session(Manager *m, const char *id, Session **_session); -int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user); -int manager_add_user_by_name(Manager *m, const char *name, User **_user); -int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user); -int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor); - -int manager_process_seat_device(Manager *m, struct udev_device *d); -int manager_process_button_device(Manager *m, struct udev_device *d); - -int manager_spawn_autovt(Manager *m, unsigned int vtnr); - -bool manager_shall_kill(Manager *m, const char *user); - -int manager_get_idle_hint(Manager *m, dual_timestamp *t); - -int manager_get_user_by_pid(Manager *m, pid_t pid, User **user); -int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session); - -bool manager_is_docked_or_external_displays(Manager *m); - -extern const sd_bus_vtable manager_vtable[]; - -int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error); -int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error); -int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error); -int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error); -int match_name_owner_changed(sd_bus_message *message, void *userdata, sd_bus_error *error); - -int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name, InhibitWhat w, sd_bus_error *error); - -int manager_send_changed(Manager *manager, const char *property, ...) _sentinel_; - -int manager_start_slice(Manager *manager, const char *slice, const char *description, const char *after, const char *after2, uint64_t tasks_max, sd_bus_error *error, char **job); -int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, const char *after, const char *after2, uint64_t tasks_max, sd_bus_error *error, char **job); -int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job); -int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job); -int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error); -int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error); -int manager_unit_is_active(Manager *manager, const char *unit); -int manager_job_is_active(Manager *manager, const char *path); - -/* gperf lookup function */ -const struct ConfigPerfItem* logind_gperf_lookup(const char *key, unsigned length); - -int manager_set_lid_switch_ignore(Manager *m, usec_t until); - -int config_parse_tmpfs_size(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); - -int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret); -int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret); -int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret); - -int manager_setup_wall_message_timer(Manager *m); -bool logind_wall_tty_filter(const char *tty, void *userdata); - -int manager_dispatch_delayed(Manager *manager, bool timeout); |