diff options
Diffstat (limited to 'src/login/logind-button.c')
-rw-r--r-- | src/login/logind-button.c | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/src/login/logind-button.c b/src/login/logind-button.c deleted file mode 100644 index 8bbd731ae4..0000000000 --- a/src/login/logind-button.c +++ /dev/null @@ -1,322 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - 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 <assert.h> -#include <string.h> -#include <errno.h> -#include <fcntl.h> -#include <sys/ioctl.h> -#include <unistd.h> -#include <linux/input.h> -#include <sys/epoll.h> - -#include "conf-parser.h" -#include "util.h" -#include "logind-button.h" -#include "special.h" -#include "dbus-common.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); - - if (b->fd >= 0) { - hashmap_remove(b->manager->button_fds, INT_TO_PTR(b->fd + 1)); - assert_se(epoll_ctl(b->manager->epoll_fd, EPOLL_CTL_DEL, b->fd, NULL) == 0); - close_nointr_nofail(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; -} - -int button_open(Button *b) { - char name[256], *p; - struct epoll_event ev; - int r; - - assert(b); - - if (b->fd >= 0) { - close_nointr_nofail(b->fd); - b->fd = -1; - } - - p = strappend("/dev/input/", b->name); - if (!p) - return log_oom(); - - b->fd = open(p, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); - free(p); - if (b->fd < 0) { - log_warning("Failed to open %s: %m", b->name); - return -errno; - } - - if (ioctl(b->fd, EVIOCGNAME(sizeof(name)), name) < 0) { - log_error("Failed to get input name: %m"); - r = -errno; - goto fail; - } - - zero(ev); - ev.events = EPOLLIN; - ev.data.u32 = FD_OTHER_BASE + b->fd; - - if (epoll_ctl(b->manager->epoll_fd, EPOLL_CTL_ADD, b->fd, &ev) < 0) { - log_error("Failed to add to epoll: %m"); - r = -errno; - goto fail; - } - - r = hashmap_put(b->manager->button_fds, INT_TO_PTR(b->fd + 1), b); - if (r < 0) { - log_error("Failed to add to hash map: %s", strerror(-r)); - assert_se(epoll_ctl(b->manager->epoll_fd, EPOLL_CTL_DEL, b->fd, NULL) == 0); - goto fail; - } - - log_info("Watching system buttons on /dev/input/%s (%s)", b->name, name); - - return 0; - -fail: - close_nointr_nofail(b->fd); - b->fd = -1; - return r; -} - -static int button_handle( - Button *b, - InhibitWhat inhibit_key, - HandleButton handle, - bool ignore_inhibited, - bool is_edge) { - - static const char * const message_table[_HANDLE_BUTTON_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_BUTTON_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 - }; - - DBusError error; - int r; - InhibitWhat inhibit_operation; - - assert(b); - - /* If the key handling is turned off, don't do anything */ - if (handle == HANDLE_IGNORE) { - log_debug("Refusing key handling, as it is turned off."); - return 0; - } - - /* If the key handling is inhibited, don't do anything */ - if (manager_is_inhibited(b->manager, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0)) { - log_debug("Refusing key handling, %s is inhibited.", inhibit_what_to_string(inhibit_key)); - return 0; - } - - /* Locking is handled differently from the rest. */ - if (handle == HANDLE_LOCK) { - log_info("Locking sessions..."); - session_send_lock_all(b->manager, true); - return 1; - } - - 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(b->manager, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0)) { - - - /* 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.", inhibit_what_to_string(inhibit_operation)); - return 0; - } - - log_error("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation)); - warn_melody(); - return -EPERM; - } - - log_info("%s", message_table[handle]); - - /* We are executing the operation, so make sure we don't - * execute another one until the lid is opened/closed again */ - b->lid_close_queued = false; - - dbus_error_init(&error); - r = bus_manager_shutdown_or_sleep_now_or_later(b->manager, target_table[handle], inhibit_operation, &error); - if (r < 0) { - log_error("Failed to execute operation: %s", bus_error_message(&error)); - dbus_error_free(&error); - return r; - } - - return 1; -} - -int button_process(Button *b) { - struct input_event ev; - ssize_t l; - - 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_info("Power key pressed."); - return button_handle(b, INHIBIT_HANDLE_POWER_KEY, b->manager->handle_power_key, b->manager->power_key_ignore_inhibited, true); - - /* 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_info("Suspend key pressed."); - return button_handle(b, INHIBIT_HANDLE_SUSPEND_KEY, b->manager->handle_suspend_key, b->manager->suspend_key_ignore_inhibited, true); - - case KEY_SUSPEND: - log_info("Hibernate key pressed."); - return button_handle(b, INHIBIT_HANDLE_HIBERNATE_KEY, b->manager->handle_hibernate_key, b->manager->hibernate_key_ignore_inhibited, true); - } - - } else if (ev.type == EV_SW && ev.value > 0) { - - switch (ev.code) { - - case SW_LID: - log_info("Lid closed."); - b->lid_close_queued = true; - - return button_handle(b, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, true); - } - - } else if (ev.type == EV_SW && ev.value == 0) { - - switch (ev.code) { - - case SW_LID: - log_info("Lid opened."); - b->lid_close_queued = false; - break; - } - } - - return 0; -} - -int button_recheck(Button *b) { - assert(b); - - if (!b->lid_close_queued) - return 0; - - return button_handle(b, INHIBIT_HANDLE_LID_SWITCH, b->manager->handle_lid_switch, b->manager->lid_switch_ignore_inhibited, false); -} - -static const char* const handle_button_table[_HANDLE_BUTTON_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_button, HandleButton); -DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_button, handle_button, HandleButton, "Failed to parse handle button setting"); |