diff options
Diffstat (limited to 'src/grp-machine/systemd-machined')
| -rw-r--r-- | src/grp-machine/systemd-machined/Makefile | 30 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/image-dbus.c | 423 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/image-dbus.h | 35 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machine-dbus.c | 1473 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machine-dbus.h | 44 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machine.c | 631 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machine.h | 111 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machined-dbus.c | 1805 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machined.c | 23 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/machined.h | 82 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/operation.c | 153 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/operation.h | 49 | ||||
| -rw-r--r-- | src/grp-machine/systemd-machined/test-machine-tables.c | 30 |
13 files changed, 13 insertions, 4876 deletions
diff --git a/src/grp-machine/systemd-machined/Makefile b/src/grp-machine/systemd-machined/Makefile index 97fa68c5f9..011e740e02 100644 --- a/src/grp-machine/systemd-machined/Makefile +++ b/src/grp-machine/systemd-machined/Makefile @@ -29,39 +29,13 @@ systemd_machined_SOURCES = \ systemd_machined_LDADD = \ libsystemd-internal.la \ - libshared.la \ - libbasic.la \ + libsystemd-shared.la \ + libsystemd-basic.la \ libmachine-core.la rootlibexec_PROGRAMS += \ systemd-machined -libmachine_core_la_SOURCES = \ - src/machine/machine.c \ - src/machine/machine.h \ - src/machine/machined-dbus.c \ - src/machine/machine-dbus.c \ - src/machine/machine-dbus.h \ - src/machine/image-dbus.c \ - src/machine/image-dbus.h \ - src/machine/operation.c \ - src/machine/operation.h - -libmachine_core_la_LIBADD = \ - libsystemd-shared.la - -noinst_LTLIBRARIES += \ - libmachine-core.la - -test_machine_tables_SOURCES = \ - src/machine/test-machine-tables.c - -test_machine_tables_LDADD = \ - libmachine-core.la - -tests += \ - test-machine-tables - nodist_systemunit_DATA += \ units/systemd-machined.service diff --git a/src/grp-machine/systemd-machined/image-dbus.c b/src/grp-machine/systemd-machined/image-dbus.c deleted file mode 100644 index 6ab627a710..0000000000 --- a/src/grp-machine/systemd-machined/image-dbus.c +++ /dev/null @@ -1,423 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 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/alloc-util.h" -#include "basic/bus-label.h" -#include "basic/fd-util.h" -#include "basic/io-util.h" -#include "basic/process-util.h" -#include "basic/strv.h" -#include "basic/user-util.h" -#include "shared/bus-util.h" -#include "shared/machine-image.h" - -#include "image-dbus.h" - -static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, image_type, ImageType); - -int bus_image_method_remove( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; - Image *image = userdata; - Manager *m = image->userdata; - pid_t child; - int r; - - assert(message); - assert(image); - - if (m->n_operations >= OPERATIONS_MAX) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing operations."); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-images", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); - - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - if (child == 0) { - errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); - - r = image_remove(image); - if (r < 0) { - (void) write(errno_pipe_fd[1], &r, sizeof(r)); - _exit(EXIT_FAILURE); - } - - _exit(EXIT_SUCCESS); - } - - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - r = operation_new(m, NULL, child, message, errno_pipe_fd[0], NULL); - if (r < 0) { - (void) sigkill_wait(child); - return r; - } - - errno_pipe_fd[0] = -1; - - return 1; -} - -int bus_image_method_rename( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - Image *image = userdata; - Manager *m = image->userdata; - const char *new_name; - int r; - - assert(message); - assert(image); - - r = sd_bus_message_read(message, "s", &new_name); - if (r < 0) - return r; - - if (!image_name_is_valid(new_name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-images", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = image_rename(image, new_name); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_image_method_clone( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; - Image *image = userdata; - Manager *m = image->userdata; - const char *new_name; - int r, read_only; - pid_t child; - - assert(message); - assert(image); - assert(m); - - if (m->n_operations >= OPERATIONS_MAX) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing operations."); - - r = sd_bus_message_read(message, "sb", &new_name, &read_only); - if (r < 0) - return r; - - if (!image_name_is_valid(new_name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-images", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); - - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - if (child == 0) { - errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); - - r = image_clone(image, new_name, read_only); - if (r < 0) { - (void) write(errno_pipe_fd[1], &r, sizeof(r)); - _exit(EXIT_FAILURE); - } - - _exit(EXIT_SUCCESS); - } - - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - r = operation_new(m, NULL, child, message, errno_pipe_fd[0], NULL); - if (r < 0) { - (void) sigkill_wait(child); - return r; - } - - errno_pipe_fd[0] = -1; - - return 1; -} - -int bus_image_method_mark_read_only( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - Image *image = userdata; - Manager *m = image->userdata; - int r, read_only; - - assert(message); - - r = sd_bus_message_read(message, "b", &read_only); - if (r < 0) - return r; - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-images", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = image_read_only(image, read_only); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_image_method_set_limit( - sd_bus_message *message, - void *userdata, - sd_bus_error *error) { - - Image *image = userdata; - Manager *m = image->userdata; - uint64_t limit; - int r; - - assert(message); - - r = sd_bus_message_read(message, "t", &limit); - if (r < 0) - return r; - if (!FILE_SIZE_VALID_OR_INFINITY(limit)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "New limit out of range"); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-images", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = image_set_limit(image, limit); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -const sd_bus_vtable image_vtable[] = { - SD_BUS_VTABLE_START(0), - SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Image, name), 0), - SD_BUS_PROPERTY("Path", "s", NULL, offsetof(Image, path), 0), - SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Image, type), 0), - SD_BUS_PROPERTY("ReadOnly", "b", bus_property_get_bool, offsetof(Image, read_only), 0), - SD_BUS_PROPERTY("CreationTimestamp", "t", NULL, offsetof(Image, crtime), 0), - SD_BUS_PROPERTY("ModificationTimestamp", "t", NULL, offsetof(Image, mtime), 0), - SD_BUS_PROPERTY("Usage", "t", NULL, offsetof(Image, usage), 0), - SD_BUS_PROPERTY("Limit", "t", NULL, offsetof(Image, limit), 0), - SD_BUS_PROPERTY("UsageExclusive", "t", NULL, offsetof(Image, usage_exclusive), 0), - SD_BUS_PROPERTY("LimitExclusive", "t", NULL, offsetof(Image, limit_exclusive), 0), - SD_BUS_METHOD("Remove", NULL, NULL, bus_image_method_remove, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Rename", "s", NULL, bus_image_method_rename, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Clone", "sb", NULL, bus_image_method_clone, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("MarkReadOnly", "b", NULL, bus_image_method_mark_read_only, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetLimit", "t", NULL, bus_image_method_set_limit, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_VTABLE_END -}; - -static int image_flush_cache(sd_event_source *s, void *userdata) { - Manager *m = userdata; - Image *i; - - assert(s); - assert(m); - - while ((i = hashmap_steal_first(m->image_cache))) - image_unref(i); - - return 0; -} - -int image_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { - _cleanup_free_ char *e = NULL; - Manager *m = userdata; - Image *image = NULL; - const char *p; - int r; - - assert(bus); - assert(path); - assert(interface); - assert(found); - - p = startswith(path, "/org/freedesktop/machine1/image/"); - if (!p) - return 0; - - e = bus_label_unescape(p); - if (!e) - return -ENOMEM; - - image = hashmap_get(m->image_cache, e); - if (image) { - *found = image; - return 1; - } - - r = hashmap_ensure_allocated(&m->image_cache, &string_hash_ops); - if (r < 0) - return r; - - if (!m->image_cache_defer_event) { - r = sd_event_add_defer(m->event, &m->image_cache_defer_event, image_flush_cache, m); - if (r < 0) - return r; - - r = sd_event_source_set_priority(m->image_cache_defer_event, SD_EVENT_PRIORITY_IDLE); - if (r < 0) - return r; - } - - r = sd_event_source_set_enabled(m->image_cache_defer_event, SD_EVENT_ONESHOT); - if (r < 0) - return r; - - r = image_find(e, &image); - if (r <= 0) - return r; - - image->userdata = m; - - r = hashmap_put(m->image_cache, image->name, image); - if (r < 0) { - image_unref(image); - return r; - } - - *found = image; - return 1; -} - -char *image_bus_path(const char *name) { - _cleanup_free_ char *e = NULL; - - assert(name); - - e = bus_label_escape(name); - if (!e) - return NULL; - - return strappend("/org/freedesktop/machine1/image/", e); -} - -int image_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { - _cleanup_(image_hashmap_freep) Hashmap *images = NULL; - _cleanup_strv_free_ char **l = NULL; - Image *image; - Iterator i; - int r; - - assert(bus); - assert(path); - assert(nodes); - - images = hashmap_new(&string_hash_ops); - if (!images) - return -ENOMEM; - - r = image_discover(images); - if (r < 0) - return r; - - HASHMAP_FOREACH(image, images, i) { - char *p; - - p = image_bus_path(image->name); - if (!p) - return -ENOMEM; - - r = strv_consume(&l, p); - if (r < 0) - return r; - } - - *nodes = l; - l = NULL; - - return 1; -} diff --git a/src/grp-machine/systemd-machined/image-dbus.h b/src/grp-machine/systemd-machined/image-dbus.h deleted file mode 100644 index b62da996c6..0000000000 --- a/src/grp-machine/systemd-machined/image-dbus.h +++ /dev/null @@ -1,35 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2014 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 "machined.h" - -extern const sd_bus_vtable image_vtable[]; - -char *image_bus_path(const char *name); - -int image_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); -int image_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); - -int bus_image_method_remove(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_image_method_rename(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_image_method_clone(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_image_method_mark_read_only(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_image_method_set_limit(sd_bus_message *message, void *userdata, sd_bus_error *error); diff --git a/src/grp-machine/systemd-machined/machine-dbus.c b/src/grp-machine/systemd-machined/machine-dbus.c deleted file mode 100644 index 91b5dfa993..0000000000 --- a/src/grp-machine/systemd-machined/machine-dbus.c +++ /dev/null @@ -1,1473 +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 <sys/wait.h> - -/* When we include libgen.h because we need dirname() we immediately - * undefine basename() since libgen.h defines it as a macro to the POSIX - * version which is really broken. We prefer GNU basename(). */ -#include <libgen.h> -#undef basename - -#include "basic/alloc-util.h" -#include "basic/bus-label.h" -#include "basic/copy.h" -#include "basic/env-util.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/fs-util.h" -#include "basic/in-addr-util.h" -#include "basic/mkdir.h" -#include "basic/path-util.h" -#include "basic/process-util.h" -#include "basic/signal-util.h" -#include "basic/strv.h" -#include "basic/terminal-util.h" -#include "basic/user-util.h" -#include "sd-bus/bus-common-errors.h" -#include "sd-bus/bus-internal.h" -#include "sd-netlink/local-addresses.h" -#include "shared/bus-util.h" - -#include "machine-dbus.h" -#include "machine.h" - -static int property_get_id( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Machine *m = userdata; - - assert(bus); - assert(reply); - assert(m); - - return sd_bus_message_append_array(reply, 'y', &m->id, 16); -} - -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) { - - Machine *m = userdata; - const char *state; - int r; - - assert(bus); - assert(reply); - assert(m); - - state = machine_state_to_string(machine_get_state(m)); - - r = sd_bus_message_append_basic(reply, 's', state); - if (r < 0) - return r; - - return 1; -} - -static int property_get_netif( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Machine *m = userdata; - - assert(bus); - assert(reply); - assert(m); - - assert_cc(sizeof(int) == sizeof(int32_t)); - - return sd_bus_message_append_array(reply, 'i', m->netif, m->n_netif * sizeof(int)); -} - -static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass); - -int bus_machine_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Machine *m = userdata; - int r; - - assert(message); - assert(m); - - r = bus_verify_polkit_async( - message, - CAP_KILL, - "org.freedesktop.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = machine_stop(m); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_machine_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Machine *m = userdata; - const char *swho; - int32_t signo; - KillWho who; - int r; - - assert(message); - assert(m); - - 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.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - r = machine_kill(m, who, signo); - if (r < 0) - return r; - - return sd_bus_reply_method_return(message, NULL); -} - -int bus_machine_method_get_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Machine *m = userdata; - 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', "(iay)"); - if (r < 0) - return r; - - switch (m->class) { - - case MACHINE_HOST: { - _cleanup_free_ struct local_address *addresses = NULL; - struct local_address *a; - int n, i; - - n = local_addresses(NULL, 0, AF_UNSPEC, &addresses); - if (n < 0) - return n; - - for (a = addresses, i = 0; i < n; a++, i++) { - - r = sd_bus_message_open_container(reply, 'r', "iay"); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "i", addresses[i].family); - if (r < 0) - return r; - - r = sd_bus_message_append_array(reply, 'y', &addresses[i].address, FAMILY_ADDRESS_SIZE(addresses[i].family)); - if (r < 0) - return r; - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - } - - break; - } - - case MACHINE_CONTAINER: { - _cleanup_close_pair_ int pair[2] = { -1, -1 }; - _cleanup_free_ char *us = NULL, *them = NULL; - _cleanup_close_ int netns_fd = -1; - const char *p; - siginfo_t si; - pid_t child; - - r = readlink_malloc("/proc/self/ns/net", &us); - if (r < 0) - return r; - - p = procfs_file_alloca(m->leader, "ns/net"); - r = readlink_malloc(p, &them); - if (r < 0) - return r; - - if (streq(us, them)) - return sd_bus_error_setf(error, BUS_ERROR_NO_PRIVATE_NETWORKING, "Machine %s does not use private networking", m->name); - - r = namespace_open(m->leader, NULL, NULL, &netns_fd, NULL, NULL); - if (r < 0) - return r; - - if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0) - return -errno; - - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - - if (child == 0) { - _cleanup_free_ struct local_address *addresses = NULL; - struct local_address *a; - int i, n; - - pair[0] = safe_close(pair[0]); - - r = namespace_enter(-1, -1, netns_fd, -1, -1); - if (r < 0) - _exit(EXIT_FAILURE); - - n = local_addresses(NULL, 0, AF_UNSPEC, &addresses); - if (n < 0) - _exit(EXIT_FAILURE); - - for (a = addresses, i = 0; i < n; a++, i++) { - struct iovec iov[2] = { - { .iov_base = &a->family, .iov_len = sizeof(a->family) }, - { .iov_base = &a->address, .iov_len = FAMILY_ADDRESS_SIZE(a->family) }, - }; - - r = writev(pair[1], iov, 2); - if (r < 0) - _exit(EXIT_FAILURE); - } - - pair[1] = safe_close(pair[1]); - - _exit(EXIT_SUCCESS); - } - - pair[1] = safe_close(pair[1]); - - for (;;) { - int family; - ssize_t n; - union in_addr_union in_addr; - struct iovec iov[2]; - struct msghdr mh = { - .msg_iov = iov, - .msg_iovlen = 2, - }; - - iov[0] = (struct iovec) { .iov_base = &family, .iov_len = sizeof(family) }; - iov[1] = (struct iovec) { .iov_base = &in_addr, .iov_len = sizeof(in_addr) }; - - n = recvmsg(pair[0], &mh, 0); - if (n < 0) - return -errno; - if ((size_t) n < sizeof(family)) - break; - - r = sd_bus_message_open_container(reply, 'r', "iay"); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "i", family); - if (r < 0) - return r; - - switch (family) { - - case AF_INET: - if (n != sizeof(struct in_addr) + sizeof(family)) - return -EIO; - - r = sd_bus_message_append_array(reply, 'y', &in_addr.in, sizeof(in_addr.in)); - break; - - case AF_INET6: - if (n != sizeof(struct in6_addr) + sizeof(family)) - return -EIO; - - r = sd_bus_message_append_array(reply, 'y', &in_addr.in6, sizeof(in_addr.in6)); - break; - } - if (r < 0) - return r; - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - } - - r = wait_for_terminate(child, &si); - if (r < 0) - return sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m"); - if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) - return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally."); - break; - } - - default: - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting IP address data is only supported on container machines."); - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -int bus_machine_method_get_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_strv_free_ char **l = NULL; - Machine *m = userdata; - char **k, **v; - int r; - - assert(message); - assert(m); - - switch (m->class) { - - case MACHINE_HOST: - r = load_env_file_pairs(NULL, "/etc/os-release", NULL, &l); - if (r < 0) - return r; - - break; - - case MACHINE_CONTAINER: { - _cleanup_close_ int mntns_fd = -1, root_fd = -1; - _cleanup_close_pair_ int pair[2] = { -1, -1 }; - _cleanup_fclose_ FILE *f = NULL; - siginfo_t si; - pid_t child; - - r = namespace_open(m->leader, NULL, &mntns_fd, NULL, NULL, &root_fd); - if (r < 0) - return r; - - if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0) - return -errno; - - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - - if (child == 0) { - _cleanup_close_ int fd = -1; - - pair[0] = safe_close(pair[0]); - - r = namespace_enter(-1, mntns_fd, -1, -1, root_fd); - if (r < 0) - _exit(EXIT_FAILURE); - - fd = open("/etc/os-release", O_RDONLY|O_CLOEXEC); - if (fd < 0) { - fd = open("/usr/lib/os-release", O_RDONLY|O_CLOEXEC); - if (fd < 0) - _exit(EXIT_FAILURE); - } - - r = copy_bytes(fd, pair[1], (uint64_t) -1, false); - if (r < 0) - _exit(EXIT_FAILURE); - - _exit(EXIT_SUCCESS); - } - - pair[1] = safe_close(pair[1]); - - f = fdopen(pair[0], "re"); - if (!f) - return -errno; - - pair[0] = -1; - - r = load_env_file_pairs(f, "/etc/os-release", NULL, &l); - if (r < 0) - return r; - - r = wait_for_terminate(child, &si); - if (r < 0) - return sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m"); - if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) - return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally."); - - break; - } - - default: - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting OS release data is only supported on container machines."); - } - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "{ss}"); - if (r < 0) - return r; - - STRV_FOREACH_PAIR(k, v, l) { - r = sd_bus_message_append(reply, "{ss}", *k, *v); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -int bus_machine_method_open_pty(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *pty_name = NULL; - _cleanup_close_ int master = -1; - Machine *m = userdata; - int r; - - assert(message); - assert(m); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-open-pty" : "org.freedesktop.machine1.open-pty", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (master < 0) - return master; - - r = ptsname_namespace(master, &pty_name); - if (r < 0) - return r; - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "hs", master, pty_name); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -static int container_bus_new(Machine *m, sd_bus_error *error, sd_bus **ret) { - int r; - - assert(m); - assert(ret); - - switch (m->class) { - - case MACHINE_HOST: - *ret = NULL; - break; - - case MACHINE_CONTAINER: { - _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL; - char *address; - - r = sd_bus_new(&bus); - if (r < 0) - return r; - - if (asprintf(&address, "x-machine-kernel:pid=%1$" PID_PRI ";x-machine-unix:pid=%1$" PID_PRI, m->leader) < 0) - return -ENOMEM; - - bus->address = address; - bus->bus_client = true; - bus->trusted = false; - bus->is_system = true; - - r = sd_bus_start(bus); - if (r == -ENOENT) - return sd_bus_error_set_errnof(error, r, "There is no system bus in container %s.", m->name); - if (r < 0) - return r; - - *ret = bus; - bus = NULL; - break; - } - - default: - return -EOPNOTSUPP; - } - - return 0; -} - -int bus_machine_method_open_login(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *pty_name = NULL; - _cleanup_(sd_bus_flush_close_unrefp) sd_bus *allocated_bus = NULL; - _cleanup_close_ int master = -1; - sd_bus *container_bus = NULL; - Machine *m = userdata; - const char *p, *getty; - int r; - - assert(message); - assert(m); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-login" : "org.freedesktop.machine1.login", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (master < 0) - return master; - - r = ptsname_namespace(master, &pty_name); - if (r < 0) - return r; - - p = path_startswith(pty_name, "/dev/pts/"); - if (!p) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "PTS name %s is invalid", pty_name); - - r = container_bus_new(m, error, &allocated_bus); - if (r < 0) - return r; - - container_bus = allocated_bus ?: m->manager->bus; - - getty = strjoina("container-getty@", p, ".service"); - - r = sd_bus_call_method( - container_bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - error, NULL, - "ss", getty, "replace"); - if (r < 0) - return r; - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "hs", master, pty_name); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -int bus_machine_method_open_shell(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *tm = NULL; - _cleanup_free_ char *pty_name = NULL; - _cleanup_(sd_bus_flush_close_unrefp) sd_bus *allocated_bus = NULL; - sd_bus *container_bus = NULL; - _cleanup_close_ int master = -1, slave = -1; - _cleanup_strv_free_ char **env = NULL, **args = NULL; - Machine *m = userdata; - const char *p, *unit, *user, *path, *description, *utmp_id; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "ss", &user, &path); - if (r < 0) - return r; - user = empty_to_null(user); - if (isempty(path)) - path = "/bin/sh"; - if (!path_is_absolute(path)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified path '%s' is not absolute", path); - - r = sd_bus_message_read_strv(message, &args); - if (r < 0) - return r; - if (strv_isempty(args)) { - args = strv_free(args); - - args = strv_new(path, NULL); - if (!args) - return -ENOMEM; - - args[0][0] = '-'; /* Tell /bin/sh that this shall be a login shell */ - } - - r = sd_bus_message_read_strv(message, &env); - if (r < 0) - return r; - if (!strv_env_is_valid(env)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments"); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-shell" : "org.freedesktop.machine1.shell", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (master < 0) - return master; - - r = ptsname_namespace(master, &pty_name); - if (r < 0) - return r; - - p = path_startswith(pty_name, "/dev/pts/"); - assert(p); - - slave = machine_open_terminal(m, pty_name, O_RDWR|O_NOCTTY|O_CLOEXEC); - if (slave < 0) - return slave; - - utmp_id = path_startswith(pty_name, "/dev/"); - assert(utmp_id); - - r = container_bus_new(m, error, &allocated_bus); - if (r < 0) - return r; - - container_bus = allocated_bus ?: m->manager->bus; - - r = sd_bus_message_new_method_call( - container_bus, - &tm, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartTransientUnit"); - if (r < 0) - return r; - - /* Name and mode */ - unit = strjoina("container-shell@", p, ".service"); - r = sd_bus_message_append(tm, "ss", unit, "fail"); - if (r < 0) - return r; - - /* Properties */ - r = sd_bus_message_open_container(tm, 'a', "(sv)"); - if (r < 0) - return r; - - description = strjoina("Shell for User ", isempty(user) ? "root" : user); - r = sd_bus_message_append(tm, - "(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)", - "Description", "s", description, - "StandardInputFileDescriptor", "h", slave, - "StandardOutputFileDescriptor", "h", slave, - "StandardErrorFileDescriptor", "h", slave, - "SendSIGHUP", "b", true, - "IgnoreSIGPIPE", "b", false, - "KillMode", "s", "mixed", - "TTYReset", "b", true, - "UtmpIdentifier", "s", utmp_id, - "UtmpMode", "s", "user", - "PAMName", "s", "login", - "WorkingDirectory", "s", "-~"); - if (r < 0) - return r; - - r = sd_bus_message_append(tm, "(sv)", "User", "s", isempty(user) ? "root" : user); - if (r < 0) - return r; - - if (!strv_isempty(env)) { - r = sd_bus_message_open_container(tm, 'r', "sv"); - if (r < 0) - return r; - - r = sd_bus_message_append(tm, "s", "Environment"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(tm, 'v', "as"); - if (r < 0) - return r; - - r = sd_bus_message_append_strv(tm, env); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - } - - /* Exec container */ - r = sd_bus_message_open_container(tm, 'r', "sv"); - if (r < 0) - return r; - - r = sd_bus_message_append(tm, "s", "ExecStart"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(tm, 'v', "a(sasb)"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(tm, 'a', "(sasb)"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(tm, 'r', "sasb"); - if (r < 0) - return r; - - r = sd_bus_message_append(tm, "s", path); - if (r < 0) - return r; - - r = sd_bus_message_append_strv(tm, args); - if (r < 0) - return r; - - r = sd_bus_message_append(tm, "b", true); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - - r = sd_bus_message_close_container(tm); - if (r < 0) - return r; - - /* Auxiliary units */ - r = sd_bus_message_append(tm, "a(sa(sv))", 0); - if (r < 0) - return r; - - r = sd_bus_call(container_bus, tm, 0, error, NULL); - if (r < 0) - return r; - - slave = safe_close(slave); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "hs", master, pty_name); - if (r < 0) - return r; - - return sd_bus_send(NULL, reply, NULL); -} - -int bus_machine_method_bind_mount(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; - char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p; - bool mount_slave_created = false, mount_slave_mounted = false, - mount_tmp_created = false, mount_tmp_mounted = false, - mount_outside_created = false, mount_outside_mounted = false; - const char *dest, *src; - Machine *m = userdata; - int read_only, make_directory; - pid_t child; - siginfo_t si; - int r; - - assert(message); - assert(m); - - if (m->class != MACHINE_CONTAINER) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Bind mounting is only supported on container machines."); - - r = sd_bus_message_read(message, "ssbb", &src, &dest, &read_only, &make_directory); - if (r < 0) - return r; - - if (!path_is_absolute(src) || !path_is_safe(src)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute and not contain ../."); - - if (isempty(dest)) - dest = src; - else if (!path_is_absolute(dest) || !path_is_safe(dest)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and not contain ../."); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - /* One day, when bind mounting /proc/self/fd/n works across - * namespace boundaries we should rework this logic to make - * use of it... */ - - p = strjoina("/run/systemd/nspawn/propagate/", m->name, "/"); - if (laccess(p, F_OK) < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Container does not allow propagation of mount points."); - - /* Our goal is to install a new bind mount into the container, - possibly read-only. This is irritatingly complex - unfortunately, currently. - - First, we start by creating a private playground in /tmp, - that we can mount MS_SLAVE. (Which is necessary, since - MS_MOVE cannot be applied to mounts with MS_SHARED parent - mounts.) */ - - if (!mkdtemp(mount_slave)) - return sd_bus_error_set_errnof(error, errno, "Failed to create playground %s: %m", mount_slave); - - mount_slave_created = true; - - if (mount(mount_slave, mount_slave, NULL, MS_BIND, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to make bind mount %s: %m", mount_slave); - goto finish; - } - - mount_slave_mounted = true; - - if (mount(NULL, mount_slave, NULL, MS_SLAVE, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to remount slave %s: %m", mount_slave); - goto finish; - } - - /* Second, we mount the source directory to a directory inside - of our MS_SLAVE playground. */ - mount_tmp = strjoina(mount_slave, "/mount"); - if (mkdir(mount_tmp, 0700) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount point %s: %m", mount_tmp); - goto finish; - } - - mount_tmp_created = true; - - if (mount(src, mount_tmp, NULL, MS_BIND, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to overmount %s: %m", mount_tmp); - goto finish; - } - - mount_tmp_mounted = true; - - /* Third, we remount the new bind mount read-only if requested. */ - if (read_only) - if (mount(NULL, mount_tmp, NULL, MS_BIND|MS_REMOUNT|MS_RDONLY, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to remount read-only %s: %m", mount_tmp); - goto finish; - } - - /* Fourth, we move the new bind mount into the propagation - * directory. This way it will appear there read-only - * right-away. */ - - mount_outside = strjoina("/run/systemd/nspawn/propagate/", m->name, "/XXXXXX"); - if (!mkdtemp(mount_outside)) { - r = sd_bus_error_set_errnof(error, errno, "Cannot create propagation directory %s: %m", mount_outside); - goto finish; - } - - mount_outside_created = true; - - if (mount(mount_tmp, mount_outside, NULL, MS_MOVE, NULL) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to move %s to %s: %m", mount_tmp, mount_outside); - goto finish; - } - - mount_outside_mounted = true; - mount_tmp_mounted = false; - - (void) rmdir(mount_tmp); - mount_tmp_created = false; - - (void) umount(mount_slave); - mount_slave_mounted = false; - - (void) rmdir(mount_slave); - mount_slave_created = false; - - if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); - goto finish; - } - - child = fork(); - if (child < 0) { - r = sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - goto finish; - } - - if (child == 0) { - const char *mount_inside; - int mntfd; - const char *q; - - errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); - - q = procfs_file_alloca(m->leader, "ns/mnt"); - mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC); - if (mntfd < 0) { - r = log_error_errno(errno, "Failed to open mount namespace of leader: %m"); - goto child_fail; - } - - if (setns(mntfd, CLONE_NEWNS) < 0) { - r = log_error_errno(errno, "Failed to join namespace of leader: %m"); - goto child_fail; - } - - if (make_directory) - (void) mkdir_p(dest, 0755); - - /* Fifth, move the mount to the right place inside */ - mount_inside = strjoina("/run/systemd/nspawn/incoming/", basename(mount_outside)); - if (mount(mount_inside, dest, NULL, MS_MOVE, NULL) < 0) { - r = log_error_errno(errno, "Failed to mount: %m"); - goto child_fail; - } - - _exit(EXIT_SUCCESS); - - child_fail: - (void) write(errno_pipe_fd[1], &r, sizeof(r)); - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - _exit(EXIT_FAILURE); - } - - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - r = wait_for_terminate(child, &si); - if (r < 0) { - r = sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m"); - goto finish; - } - if (si.si_code != CLD_EXITED) { - r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally."); - goto finish; - } - if (si.si_status != EXIT_SUCCESS) { - - if (read(errno_pipe_fd[0], &r, sizeof(r)) == sizeof(r)) - r = sd_bus_error_set_errnof(error, r, "Failed to mount: %m"); - else - r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child failed."); - goto finish; - } - - r = sd_bus_reply_method_return(message, NULL); - -finish: - if (mount_outside_mounted) - umount(mount_outside); - if (mount_outside_created) - rmdir(mount_outside); - - if (mount_tmp_mounted) - umount(mount_tmp); - if (mount_tmp_created) - rmdir(mount_tmp); - - if (mount_slave_mounted) - umount(mount_slave); - if (mount_slave_created) - rmdir(mount_slave); - - return r; -} - -int bus_machine_method_copy(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *src, *dest, *host_path, *container_path, *host_basename, *host_dirname, *container_basename, *container_dirname; - _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; - _cleanup_close_ int hostfd = -1; - Machine *m = userdata; - bool copy_from; - pid_t child; - char *t; - int r; - - assert(message); - assert(m); - - if (m->manager->n_operations >= OPERATIONS_MAX) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing copies."); - - if (m->class != MACHINE_CONTAINER) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Copying files is only supported on container machines."); - - r = sd_bus_message_read(message, "ss", &src, &dest); - if (r < 0) - return r; - - if (!path_is_absolute(src)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute."); - - if (isempty(dest)) - dest = src; - else if (!path_is_absolute(dest)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute."); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - copy_from = strstr(sd_bus_message_get_member(message), "CopyFrom"); - - if (copy_from) { - container_path = src; - host_path = dest; - } else { - host_path = src; - container_path = dest; - } - - host_basename = basename(host_path); - t = strdupa(host_path); - host_dirname = dirname(t); - - container_basename = basename(container_path); - t = strdupa(container_path); - container_dirname = dirname(t); - - hostfd = open(host_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY); - if (hostfd < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to open host directory %s: %m", host_dirname); - - if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); - - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - - if (child == 0) { - int containerfd; - const char *q; - int mntfd; - - errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); - - q = procfs_file_alloca(m->leader, "ns/mnt"); - mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC); - if (mntfd < 0) { - r = log_error_errno(errno, "Failed to open mount namespace of leader: %m"); - goto child_fail; - } - - if (setns(mntfd, CLONE_NEWNS) < 0) { - r = log_error_errno(errno, "Failed to join namespace of leader: %m"); - goto child_fail; - } - - containerfd = open(container_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY); - if (containerfd < 0) { - r = log_error_errno(errno, "Failed top open destination directory: %m"); - goto child_fail; - } - - if (copy_from) - r = copy_tree_at(containerfd, container_basename, hostfd, host_basename, true); - else - r = copy_tree_at(hostfd, host_basename, containerfd, container_basename, true); - - hostfd = safe_close(hostfd); - containerfd = safe_close(containerfd); - - if (r < 0) { - r = log_error_errno(r, "Failed to copy tree: %m"); - goto child_fail; - } - - _exit(EXIT_SUCCESS); - - child_fail: - (void) write(errno_pipe_fd[1], &r, sizeof(r)); - _exit(EXIT_FAILURE); - } - - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - /* Copying might take a while, hence install a watch on the child, and return */ - - r = operation_new(m->manager, m, child, message, errno_pipe_fd[0], NULL); - if (r < 0) { - (void) sigkill_wait(child); - return r; - } - errno_pipe_fd[0] = -1; - - return 1; -} - -int bus_machine_method_open_root_directory(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_close_ int fd = -1; - Machine *m = userdata; - int r; - - assert(message); - assert(m); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->manager->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - switch (m->class) { - - case MACHINE_HOST: - fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY); - if (fd < 0) - return -errno; - - break; - - case MACHINE_CONTAINER: { - _cleanup_close_ int mntns_fd = -1, root_fd = -1; - _cleanup_close_pair_ int pair[2] = { -1, -1 }; - siginfo_t si; - pid_t child; - - r = namespace_open(m->leader, NULL, &mntns_fd, NULL, NULL, &root_fd); - if (r < 0) - return r; - - if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) - return -errno; - - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - - if (child == 0) { - _cleanup_close_ int dfd = -1; - - pair[0] = safe_close(pair[0]); - - r = namespace_enter(-1, mntns_fd, -1, -1, root_fd); - if (r < 0) - _exit(EXIT_FAILURE); - - dfd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY); - if (dfd < 0) - _exit(EXIT_FAILURE); - - r = send_one_fd(pair[1], dfd, 0); - dfd = safe_close(dfd); - if (r < 0) - _exit(EXIT_FAILURE); - - _exit(EXIT_SUCCESS); - } - - pair[1] = safe_close(pair[1]); - - r = wait_for_terminate(child, &si); - if (r < 0) - return sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m"); - if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) - return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally."); - - fd = receive_one_fd(pair[0], MSG_DONTWAIT); - if (fd < 0) - return fd; - - break; - } - - default: - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Opening the root directory is only supported on container machines."); - } - - return sd_bus_reply_method_return(message, "h", fd); -} - -const sd_bus_vtable machine_vtable[] = { - SD_BUS_VTABLE_START(0), - SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Id", "ay", property_get_id, 0, SD_BUS_VTABLE_PROPERTY_CONST), - BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Machine, timestamp), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Machine, service), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Unit", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), - SD_BUS_PROPERTY("Leader", "u", NULL, offsetof(Machine, leader), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Machine, class), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("NetworkInterfaces", "ai", property_get_netif, 0, SD_BUS_VTABLE_PROPERTY_CONST), - SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), - SD_BUS_METHOD("Terminate", NULL, NULL, bus_machine_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("Kill", "si", NULL, bus_machine_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetAddresses", NULL, "a(iay)", bus_machine_method_get_addresses, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetOSRelease", NULL, "a{ss}", bus_machine_method_get_os_release, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenPTY", NULL, "hs", bus_machine_method_open_pty, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenLogin", NULL, "hs", bus_machine_method_open_login, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenShell", "ssasas", "hs", bus_machine_method_open_shell, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("BindMount", "ssbb", NULL, bus_machine_method_bind_mount, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CopyFrom", "ss", NULL, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CopyTo", "ss", NULL, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenRootDirectory", NULL, "h", bus_machine_method_open_root_directory, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_VTABLE_END -}; - -int machine_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - int r; - - assert(bus); - assert(path); - assert(interface); - assert(found); - assert(m); - - if (streq(path, "/org/freedesktop/machine1/machine/self")) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - sd_bus_message *message; - pid_t pid; - - message = sd_bus_get_current_message(bus); - if (!message) - return 0; - - 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); - if (r < 0) - return r; - - r = manager_get_machine_by_pid(m, pid, &machine); - if (r <= 0) - return 0; - } else { - _cleanup_free_ char *e = NULL; - const char *p; - - p = startswith(path, "/org/freedesktop/machine1/machine/"); - if (!p) - return 0; - - e = bus_label_unescape(p); - if (!e) - return -ENOMEM; - - machine = hashmap_get(m->machines, e); - if (!machine) - return 0; - } - - *found = machine; - return 1; -} - -char *machine_bus_path(Machine *m) { - _cleanup_free_ char *e = NULL; - - assert(m); - - e = bus_label_escape(m->name); - if (!e) - return NULL; - - return strappend("/org/freedesktop/machine1/machine/", e); -} - -int machine_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { - _cleanup_strv_free_ char **l = NULL; - Machine *machine = NULL; - Manager *m = userdata; - Iterator i; - int r; - - assert(bus); - assert(path); - assert(nodes); - - HASHMAP_FOREACH(machine, m->machines, i) { - char *p; - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - r = strv_consume(&l, p); - if (r < 0) - return r; - } - - *nodes = l; - l = NULL; - - return 1; -} - -int machine_send_signal(Machine *m, bool new_machine) { - _cleanup_free_ char *p = NULL; - - assert(m); - - p = machine_bus_path(m); - if (!p) - return -ENOMEM; - - return sd_bus_emit_signal( - m->manager->bus, - "/org/freedesktop/machine1", - "org.freedesktop.machine1.Manager", - new_machine ? "MachineNew" : "MachineRemoved", - "so", m->name, p); -} - -int machine_send_create_reply(Machine *m, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *c = NULL; - _cleanup_free_ char *p = NULL; - - assert(m); - - if (!m->create_message) - return 0; - - c = m->create_message; - m->create_message = NULL; - - if (error) - return sd_bus_reply_method_error(c, error); - - /* Update the machine state file before we notify the client - * about the result. */ - machine_save(m); - - p = machine_bus_path(m); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(c, "o", p); -} diff --git a/src/grp-machine/systemd-machined/machine-dbus.h b/src/grp-machine/systemd-machined/machine-dbus.h deleted file mode 100644 index d3faf5cb07..0000000000 --- a/src/grp-machine/systemd-machined/machine-dbus.h +++ /dev/null @@ -1,44 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 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 <systemd/sd-bus.h> - -#include "machine.h" - -extern const sd_bus_vtable machine_vtable[]; - -char *machine_bus_path(Machine *s); -int machine_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); -int machine_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); - -int bus_machine_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_get_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_get_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_open_pty(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_open_login(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_open_shell(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_bind_mount(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_copy(sd_bus_message *message, void *userdata, sd_bus_error *error); -int bus_machine_method_open_root_directory(sd_bus_message *message, void *userdata, sd_bus_error *error); - -int machine_send_signal(Machine *m, bool new_machine); -int machine_send_create_reply(Machine *m, sd_bus_error *error); diff --git a/src/grp-machine/systemd-machined/machine.c b/src/grp-machine/systemd-machined/machine.c deleted file mode 100644 index 701fec0e67..0000000000 --- a/src/grp-machine/systemd-machined/machine.c +++ /dev/null @@ -1,631 +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 <unistd.h> - -#include <systemd/sd-messages.h> - -#include "basic/alloc-util.h" -#include "basic/escape.h" -#include "basic/extract-word.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/hashmap.h" -#include "basic/mkdir.h" -#include "basic/parse-util.h" -#include "basic/process-util.h" -#include "basic/special.h" -#include "basic/string-table.h" -#include "basic/terminal-util.h" -#include "basic/unit-name.h" -#include "basic/util.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" - -#include "machine-dbus.h" -#include "machine.h" - -Machine* machine_new(Manager *manager, MachineClass class, const char *name) { - Machine *m; - - assert(manager); - assert(class < _MACHINE_CLASS_MAX); - assert(name); - - /* Passing class == _MACHINE_CLASS_INVALID here is fine. It - * means as much as "we don't know yet", and that we'll figure - * it out later when loading the state file. */ - - m = new0(Machine, 1); - if (!m) - return NULL; - - m->name = strdup(name); - if (!m->name) - goto fail; - - if (class != MACHINE_HOST) { - m->state_file = strappend("/run/systemd/machines/", m->name); - if (!m->state_file) - goto fail; - } - - m->class = class; - - if (hashmap_put(manager->machines, m->name, m) < 0) - goto fail; - - m->manager = manager; - - return m; - -fail: - free(m->state_file); - free(m->name); - free(m); - - return NULL; -} - -void machine_free(Machine *m) { - assert(m); - - while (m->operations) - operation_free(m->operations); - - if (m->in_gc_queue) - LIST_REMOVE(gc_queue, m->manager->machine_gc_queue, m); - - machine_release_unit(m); - - free(m->scope_job); - - (void) hashmap_remove(m->manager->machines, m->name); - - if (m->manager->host_machine == m) - m->manager->host_machine = NULL; - - if (m->leader > 0) - (void) hashmap_remove_value(m->manager->machine_leaders, PID_TO_PTR(m->leader), m); - - sd_bus_message_unref(m->create_message); - - free(m->name); - free(m->state_file); - free(m->service); - free(m->root_directory); - free(m->netif); - free(m); -} - -int machine_save(Machine *m) { - _cleanup_free_ char *temp_path = NULL; - _cleanup_fclose_ FILE *f = NULL; - int r; - - assert(m); - - if (!m->state_file) - return 0; - - if (!m->started) - return 0; - - r = mkdir_safe_label("/run/systemd/machines", 0755, 0, 0); - if (r < 0) - goto fail; - - r = fopen_temporary(m->state_file, &f, &temp_path); - if (r < 0) - goto fail; - - (void) fchmod(fileno(f), 0644); - - fprintf(f, - "# This is private data. Do not parse.\n" - "NAME=%s\n", - m->name); - - if (m->unit) { - _cleanup_free_ char *escaped; - - escaped = cescape(m->unit); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - - fprintf(f, "SCOPE=%s\n", escaped); /* We continue to call this "SCOPE=" because it is internal only, and we want to stay compatible with old files */ - } - - if (m->scope_job) - fprintf(f, "SCOPE_JOB=%s\n", m->scope_job); - - if (m->service) { - _cleanup_free_ char *escaped; - - escaped = cescape(m->service); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - fprintf(f, "SERVICE=%s\n", escaped); - } - - if (m->root_directory) { - _cleanup_free_ char *escaped; - - escaped = cescape(m->root_directory); - if (!escaped) { - r = -ENOMEM; - goto fail; - } - fprintf(f, "ROOT=%s\n", escaped); - } - - if (!sd_id128_is_null(m->id)) - fprintf(f, "ID=" SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(m->id)); - - if (m->leader != 0) - fprintf(f, "LEADER="PID_FMT"\n", m->leader); - - if (m->class != _MACHINE_CLASS_INVALID) - fprintf(f, "CLASS=%s\n", machine_class_to_string(m->class)); - - if (dual_timestamp_is_set(&m->timestamp)) - fprintf(f, - "REALTIME="USEC_FMT"\n" - "MONOTONIC="USEC_FMT"\n", - m->timestamp.realtime, - m->timestamp.monotonic); - - if (m->n_netif > 0) { - unsigned i; - - fputs("NETIF=", f); - - for (i = 0; i < m->n_netif; i++) { - if (i != 0) - fputc(' ', f); - - fprintf(f, "%i", m->netif[i]); - } - - fputc('\n', f); - } - - r = fflush_and_check(f); - if (r < 0) - goto fail; - - if (rename(temp_path, m->state_file) < 0) { - r = -errno; - goto fail; - } - - if (m->unit) { - char *sl; - - /* Create a symlink from the unit name to the machine - * name, so that we can quickly find the machine for - * each given unit. Ignore error. */ - sl = strjoina("/run/systemd/machines/unit:", m->unit); - (void) symlink(m->name, sl); - } - - return 0; - -fail: - (void) unlink(m->state_file); - - if (temp_path) - (void) unlink(temp_path); - - return log_error_errno(r, "Failed to save machine data %s: %m", m->state_file); -} - -static void machine_unlink(Machine *m) { - assert(m); - - if (m->unit) { - - char *sl; - - sl = strjoina("/run/systemd/machines/unit:", m->unit); - (void) unlink(sl); - } - - if (m->state_file) - (void) unlink(m->state_file); -} - -int machine_load(Machine *m) { - _cleanup_free_ char *realtime = NULL, *monotonic = NULL, *id = NULL, *leader = NULL, *class = NULL, *netif = NULL; - int r; - - assert(m); - - if (!m->state_file) - return 0; - - r = parse_env_file(m->state_file, NEWLINE, - "SCOPE", &m->unit, - "SCOPE_JOB", &m->scope_job, - "SERVICE", &m->service, - "ROOT", &m->root_directory, - "ID", &id, - "LEADER", &leader, - "CLASS", &class, - "REALTIME", &realtime, - "MONOTONIC", &monotonic, - "NETIF", &netif, - NULL); - if (r < 0) { - if (r == -ENOENT) - return 0; - - return log_error_errno(r, "Failed to read %s: %m", m->state_file); - } - - if (id) - sd_id128_from_string(id, &m->id); - - if (leader) - parse_pid(leader, &m->leader); - - if (class) { - MachineClass c; - - c = machine_class_from_string(class); - if (c >= 0) - m->class = c; - } - - if (realtime) - timestamp_deserialize(realtime, &m->timestamp.realtime); - if (monotonic) - timestamp_deserialize(monotonic, &m->timestamp.monotonic); - - if (netif) { - size_t allocated = 0, nr = 0; - const char *p; - int *ni = NULL; - - p = netif; - for (;;) { - _cleanup_free_ char *word = NULL; - int ifi; - - r = extract_first_word(&p, &word, NULL, 0); - if (r == 0) - break; - if (r == -ENOMEM) - return log_oom(); - if (r < 0) { - log_warning_errno(r, "Failed to parse NETIF: %s", netif); - break; - } - - if (parse_ifindex(word, &ifi) < 0) - continue; - - if (!GREEDY_REALLOC(ni, allocated, nr+1)) { - free(ni); - return log_oom(); - } - - ni[nr++] = ifi; - } - - free(m->netif); - m->netif = ni; - m->n_netif = nr; - } - - return r; -} - -static int machine_start_scope(Machine *m, sd_bus_message *properties, sd_bus_error *error) { - int r = 0; - - assert(m); - assert(m->class != MACHINE_HOST); - - if (!m->unit) { - _cleanup_free_ char *escaped = NULL; - char *scope, *description, *job = NULL; - - escaped = unit_name_escape(m->name); - if (!escaped) - return log_oom(); - - scope = strjoin("machine-", escaped, ".scope", NULL); - if (!scope) - return log_oom(); - - description = strjoina(m->class == MACHINE_VM ? "Virtual Machine " : "Container ", m->name); - - r = manager_start_scope(m->manager, scope, m->leader, SPECIAL_MACHINE_SLICE, description, properties, error, &job); - if (r < 0) { - log_error("Failed to start machine scope: %s", bus_error_message(error, r)); - free(scope); - return r; - } else { - m->unit = scope; - - free(m->scope_job); - m->scope_job = job; - } - } - - if (m->unit) - hashmap_put(m->manager->machine_units, m->unit, m); - - return r; -} - -int machine_start(Machine *m, sd_bus_message *properties, sd_bus_error *error) { - int r; - - assert(m); - - if (!IN_SET(m->class, MACHINE_CONTAINER, MACHINE_VM)) - return -EOPNOTSUPP; - - if (m->started) - return 0; - - r = hashmap_put(m->manager->machine_leaders, PID_TO_PTR(m->leader), m); - if (r < 0) - return r; - - /* Create cgroup */ - r = machine_start_scope(m, properties, error); - if (r < 0) - return r; - - log_struct(LOG_INFO, - LOG_MESSAGE_ID(SD_MESSAGE_MACHINE_START), - "NAME=%s", m->name, - "LEADER="PID_FMT, m->leader, - LOG_MESSAGE("New machine %s.", m->name), - NULL); - - if (!dual_timestamp_is_set(&m->timestamp)) - dual_timestamp_get(&m->timestamp); - - m->started = true; - - /* Save new machine data */ - machine_save(m); - - machine_send_signal(m, true); - - return 0; -} - -static int machine_stop_scope(Machine *m) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - char *job = NULL; - int r; - - assert(m); - assert(m->class != MACHINE_HOST); - - if (!m->unit) - return 0; - - r = manager_stop_unit(m->manager, m->unit, &error, &job); - if (r < 0) { - log_error("Failed to stop machine scope: %s", bus_error_message(&error, r)); - return r; - } - - free(m->scope_job); - m->scope_job = job; - - return 0; -} - -int machine_stop(Machine *m) { - int r; - assert(m); - - if (!IN_SET(m->class, MACHINE_CONTAINER, MACHINE_VM)) - return -EOPNOTSUPP; - - r = machine_stop_scope(m); - - m->stopping = true; - - machine_save(m); - - return r; -} - -int machine_finalize(Machine *m) { - assert(m); - - if (m->started) - log_struct(LOG_INFO, - LOG_MESSAGE_ID(SD_MESSAGE_MACHINE_STOP), - "NAME=%s", m->name, - "LEADER="PID_FMT, m->leader, - LOG_MESSAGE("Machine %s terminated.", m->name), - NULL); - - machine_unlink(m); - machine_add_to_gc_queue(m); - - if (m->started) { - machine_send_signal(m, false); - m->started = false; - } - - return 0; -} - -bool machine_check_gc(Machine *m, bool drop_not_started) { - assert(m); - - if (m->class == MACHINE_HOST) - return true; - - if (drop_not_started && !m->started) - return false; - - if (m->scope_job && manager_job_is_active(m->manager, m->scope_job)) - return true; - - if (m->unit && manager_unit_is_active(m->manager, m->unit)) - return true; - - return false; -} - -void machine_add_to_gc_queue(Machine *m) { - assert(m); - - if (m->in_gc_queue) - return; - - LIST_PREPEND(gc_queue, m->manager->machine_gc_queue, m); - m->in_gc_queue = true; -} - -MachineState machine_get_state(Machine *s) { - assert(s); - - if (s->class == MACHINE_HOST) - return MACHINE_RUNNING; - - if (s->stopping) - return MACHINE_CLOSING; - - if (s->scope_job) - return MACHINE_OPENING; - - return MACHINE_RUNNING; -} - -int machine_kill(Machine *m, KillWho who, int signo) { - assert(m); - - if (!IN_SET(m->class, MACHINE_VM, MACHINE_CONTAINER)) - return -EOPNOTSUPP; - - if (!m->unit) - return -ESRCH; - - if (who == KILL_LEADER) { - /* If we shall simply kill the leader, do so directly */ - - if (kill(m->leader, signo) < 0) - return -errno; - - return 0; - } - - /* Otherwise, make PID 1 do it for us, for the entire cgroup */ - return manager_kill_unit(m->manager, m->unit, signo, NULL); -} - -int machine_openpt(Machine *m, int flags) { - assert(m); - - switch (m->class) { - - case MACHINE_HOST: { - int fd; - - fd = posix_openpt(flags); - if (fd < 0) - return -errno; - - if (unlockpt(fd) < 0) - return -errno; - - return fd; - } - - case MACHINE_CONTAINER: - if (m->leader <= 0) - return -EINVAL; - - return openpt_in_namespace(m->leader, flags); - - default: - return -EOPNOTSUPP; - } -} - -int machine_open_terminal(Machine *m, const char *path, int mode) { - assert(m); - - switch (m->class) { - - case MACHINE_HOST: - return open_terminal(path, mode); - - case MACHINE_CONTAINER: - if (m->leader <= 0) - return -EINVAL; - - return open_terminal_in_namespace(m->leader, path, mode); - - default: - return -EOPNOTSUPP; - } -} - -void machine_release_unit(Machine *m) { - assert(m); - - if (!m->unit) - return; - - (void) hashmap_remove(m->manager->machine_units, m->unit); - m->unit = mfree(m->unit); -} - -static const char* const machine_class_table[_MACHINE_CLASS_MAX] = { - [MACHINE_CONTAINER] = "container", - [MACHINE_VM] = "vm", - [MACHINE_HOST] = "host", -}; - -DEFINE_STRING_TABLE_LOOKUP(machine_class, MachineClass); - -static const char* const machine_state_table[_MACHINE_STATE_MAX] = { - [MACHINE_OPENING] = "opening", - [MACHINE_RUNNING] = "running", - [MACHINE_CLOSING] = "closing" -}; - -DEFINE_STRING_TABLE_LOOKUP(machine_state, MachineState); - -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-machine/systemd-machined/machine.h b/src/grp-machine/systemd-machined/machine.h deleted file mode 100644 index e93f0cf222..0000000000 --- a/src/grp-machine/systemd-machined/machine.h +++ /dev/null @@ -1,111 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 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 enum KillWho KillWho; -typedef struct Machine Machine; - -#include "machined.h" -#include "operation.h" - -typedef enum MachineState { - MACHINE_OPENING, /* Machine is being registered */ - MACHINE_RUNNING, /* Machine is running */ - MACHINE_CLOSING, /* Machine is terminating */ - _MACHINE_STATE_MAX, - _MACHINE_STATE_INVALID = -1 -} MachineState; - -typedef enum MachineClass { - MACHINE_CONTAINER, - MACHINE_VM, - MACHINE_HOST, - _MACHINE_CLASS_MAX, - _MACHINE_CLASS_INVALID = -1 -} MachineClass; - -enum KillWho { - KILL_LEADER, - KILL_ALL, - _KILL_WHO_MAX, - _KILL_WHO_INVALID = -1 -}; - -struct Machine { - Manager *manager; - - char *name; - sd_id128_t id; - - MachineClass class; - - char *state_file; - char *service; - char *root_directory; - - char *unit; - char *scope_job; - - pid_t leader; - - dual_timestamp timestamp; - - bool in_gc_queue:1; - bool started:1; - bool stopping:1; - - sd_bus_message *create_message; - - int *netif; - unsigned n_netif; - - LIST_HEAD(Operation, operations); - - LIST_FIELDS(Machine, gc_queue); -}; - -Machine* machine_new(Manager *manager, MachineClass class, const char *name); -void machine_free(Machine *m); -bool machine_check_gc(Machine *m, bool drop_not_started); -void machine_add_to_gc_queue(Machine *m); -int machine_start(Machine *m, sd_bus_message *properties, sd_bus_error *error); -int machine_stop(Machine *m); -int machine_finalize(Machine *m); -int machine_save(Machine *m); -int machine_load(Machine *m); -int machine_kill(Machine *m, KillWho who, int signo); - -void machine_release_unit(Machine *m); - -MachineState machine_get_state(Machine *u); - -const char* machine_class_to_string(MachineClass t) _const_; -MachineClass machine_class_from_string(const char *s) _pure_; - -const char* machine_state_to_string(MachineState t) _const_; -MachineState machine_state_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 machine_openpt(Machine *m, int flags); -int machine_open_terminal(Machine *m, const char *path, int mode); diff --git a/src/grp-machine/systemd-machined/machined-dbus.c b/src/grp-machine/systemd-machined/machined-dbus.c deleted file mode 100644 index 349ffcf298..0000000000 --- a/src/grp-machine/systemd-machined/machined-dbus.c +++ /dev/null @@ -1,1805 +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 <unistd.h> - -#include <systemd/sd-id128.h> - -#include "basic/alloc-util.h" -#include "basic/btrfs-util.h" -#include "basic/cgroup-util.h" -#include "basic/fd-util.h" -#include "basic/fileio.h" -#include "basic/formats-util.h" -#include "basic/hostname-util.h" -#include "basic/io-util.h" -#include "basic/path-util.h" -#include "basic/process-util.h" -#include "basic/stdio-util.h" -#include "basic/strv.h" -#include "basic/unit-name.h" -#include "basic/user-util.h" -#include "sd-bus/bus-common-errors.h" -#include "shared/bus-util.h" -#include "shared/machine-image.h" -#include "shared/machine-pool.h" - -#include "image-dbus.h" -#include "machine-dbus.h" -#include "machined.h" - -static int property_get_pool_path( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - assert(bus); - assert(reply); - - return sd_bus_message_append(reply, "s", "/var/lib/machines"); -} - -static int property_get_pool_usage( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_close_ int fd = -1; - uint64_t usage = (uint64_t) -1; - struct stat st; - - assert(bus); - assert(reply); - - /* We try to read the quota info from /var/lib/machines, as - * well as the usage of the loopback file - * /var/lib/machines.raw, and pick the larger value. */ - - fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY); - if (fd >= 0) { - BtrfsQuotaInfo q; - - if (btrfs_subvol_get_subtree_quota_fd(fd, 0, &q) >= 0) - usage = q.referenced; - } - - if (stat("/var/lib/machines.raw", &st) >= 0) { - if (usage == (uint64_t) -1 || st.st_blocks * 512ULL > usage) - usage = st.st_blocks * 512ULL; - } - - return sd_bus_message_append(reply, "t", usage); -} - -static int property_get_pool_limit( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_close_ int fd = -1; - uint64_t size = (uint64_t) -1; - struct stat st; - - assert(bus); - assert(reply); - - /* We try to read the quota limit from /var/lib/machines, as - * well as the size of the loopback file - * /var/lib/machines.raw, and pick the smaller value. */ - - fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY); - if (fd >= 0) { - BtrfsQuotaInfo q; - - if (btrfs_subvol_get_subtree_quota_fd(fd, 0, &q) >= 0) - size = q.referenced_max; - } - - if (stat("/var/lib/machines.raw", &st) >= 0) { - if (size == (uint64_t) -1 || (uint64_t) st.st_size < size) - size = st.st_size; - } - - return sd_bus_message_append(reply, "t", size); -} - -static int method_get_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = image_find(name, NULL); - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - if (r < 0) - return r; - - p = image_bus_path(name); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_machine_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - Machine *machine = 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) { - _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); - if (r < 0) - return r; - } - - r = manager_get_machine_by_pid(m, pid, &machine); - if (r < 0) - return r; - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID "PID_FMT" does not belong to any known machine", pid); - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_list_machines(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Manager *m = userdata; - Machine *machine; - Iterator i; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - r = sd_bus_message_open_container(reply, 'a', "(ssso)"); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - HASHMAP_FOREACH(machine, m->machines, i) { - _cleanup_free_ char *p = NULL; - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(ssso)", - machine->name, - strempty(machine_class_to_string(machine->class)), - machine->service, - p); - if (r < 0) - return sd_bus_error_set_errno(error, r); - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - return sd_bus_send(NULL, reply, NULL); -} - -static int method_create_or_register_machine(Manager *manager, sd_bus_message *message, bool read_network, Machine **_m, sd_bus_error *error) { - const char *name, *service, *class, *root_directory; - const int32_t *netif = NULL; - MachineClass c; - uint32_t leader; - sd_id128_t id; - const void *v; - Machine *m; - size_t n, n_netif = 0; - int r; - - assert(manager); - assert(message); - assert(_m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - if (!machine_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine name"); - - r = sd_bus_message_read_array(message, 'y', &v, &n); - if (r < 0) - return r; - if (n == 0) - id = SD_ID128_NULL; - else if (n == 16) - memcpy(&id, v, n); - else - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine ID parameter"); - - r = sd_bus_message_read(message, "ssus", &service, &class, &leader, &root_directory); - if (r < 0) - return r; - - if (read_network) { - size_t i; - - r = sd_bus_message_read_array(message, 'i', (const void**) &netif, &n_netif); - if (r < 0) - return r; - - n_netif /= sizeof(int32_t); - - for (i = 0; i < n_netif; i++) { - if (netif[i] <= 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid network interface index %i", netif[i]); - } - } - - if (isempty(class)) - c = _MACHINE_CLASS_INVALID; - else { - c = machine_class_from_string(class); - if (c < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine class parameter"); - } - - if (leader == 1) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID"); - - if (!isempty(root_directory) && !path_is_absolute(root_directory)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root directory must be empty or an absolute path"); - - 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; - - assert_cc(sizeof(uint32_t) == sizeof(pid_t)); - - r = sd_bus_creds_get_pid(creds, (pid_t*) &leader); - if (r < 0) - return r; - } - - if (hashmap_get(manager->machines, name)) - return sd_bus_error_setf(error, BUS_ERROR_MACHINE_EXISTS, "Machine '%s' already exists", name); - - r = manager_add_machine(manager, name, &m); - if (r < 0) - return r; - - m->leader = leader; - m->class = c; - m->id = id; - - if (!isempty(service)) { - m->service = strdup(service); - if (!m->service) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(root_directory)) { - m->root_directory = strdup(root_directory); - if (!m->root_directory) { - r = -ENOMEM; - goto fail; - } - } - - if (n_netif > 0) { - assert_cc(sizeof(int32_t) == sizeof(int)); - m->netif = memdup(netif, sizeof(int32_t) * n_netif); - if (!m->netif) { - r = -ENOMEM; - goto fail; - } - - m->n_netif = n_netif; - } - - *_m = m; - - return 1; - -fail: - machine_add_to_gc_queue(m); - return r; -} - -static int method_create_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) { - Manager *manager = userdata; - Machine *m = NULL; - int r; - - assert(message); - assert(manager); - - r = method_create_or_register_machine(manager, message, read_network, &m, error); - if (r < 0) - return r; - - r = sd_bus_message_enter_container(message, 'a', "(sv)"); - if (r < 0) - goto fail; - - r = machine_start(m, message, error); - if (r < 0) - goto fail; - - m->create_message = sd_bus_message_ref(message); - return 1; - -fail: - machine_add_to_gc_queue(m); - return r; -} - -static int method_create_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_create_machine_internal(message, true, userdata, error); -} - -static int method_create_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_create_machine_internal(message, false, userdata, error); -} - -static int method_register_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) { - Manager *manager = userdata; - _cleanup_free_ char *p = NULL; - Machine *m = NULL; - int r; - - assert(message); - assert(manager); - - r = method_create_or_register_machine(manager, message, read_network, &m, error); - if (r < 0) - return r; - - r = cg_pid_get_unit(m->leader, &m->unit); - if (r < 0) { - r = sd_bus_error_set_errnof(error, r, "Failed to determine unit of process "PID_FMT" : %s", m->leader, strerror(-r)); - goto fail; - } - - r = machine_start(m, NULL, error); - if (r < 0) - goto fail; - - p = machine_bus_path(m); - if (!p) { - r = -ENOMEM; - goto fail; - } - - return sd_bus_reply_method_return(message, "o", p); - -fail: - machine_add_to_gc_queue(m); - return r; -} - -static int method_register_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_register_machine_internal(message, true, userdata, error); -} - -static int method_register_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_register_machine_internal(message, false, userdata, error); -} - -static int method_terminate_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_terminate(message, machine, error); -} - -static int method_kill_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_kill(message, machine, error); -} - -static int method_get_machine_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_get_addresses(message, machine, error); -} - -static int method_get_machine_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_get_os_release(message, machine, error); -} - -static int method_list_images(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_(image_hashmap_freep) Hashmap *images = NULL; - Manager *m = userdata; - Image *image; - Iterator i; - int r; - - assert(message); - assert(m); - - images = hashmap_new(&string_hash_ops); - if (!images) - return -ENOMEM; - - r = image_discover(images); - if (r < 0) - return r; - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(ssbttto)"); - if (r < 0) - return r; - - HASHMAP_FOREACH(image, images, i) { - _cleanup_free_ char *p = NULL; - - p = image_bus_path(image->name); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(ssbttto)", - image->name, - image_type_to_string(image->type), - image->read_only, - image->crtime, - image->mtime, - image->usage, - 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_open_machine_pty(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_pty(message, machine, error); -} - -static int method_open_machine_login(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_login(message, machine, error); -} - -static int method_open_machine_shell(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_shell(message, machine, error); -} - -static int method_bind_mount_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_bind_mount(message, machine, error); -} - -static int method_copy_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_copy(message, machine, error); -} - -static int method_open_machine_root_directory(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_root_directory(message, machine, error); -} - -static int method_remove_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image* i = NULL; - const char *name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - if (!image_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); - - r = image_find(name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - - i->userdata = userdata; - return bus_image_method_remove(message, i, error); -} - -static int method_rename_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image* i = NULL; - const char *old_name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &old_name); - if (r < 0) - return r; - - if (!image_name_is_valid(old_name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); - - r = image_find(old_name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); - - i->userdata = userdata; - return bus_image_method_rename(message, i, error); -} - -static int method_clone_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image *i = NULL; - const char *old_name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &old_name); - if (r < 0) - return r; - - if (!image_name_is_valid(old_name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); - - r = image_find(old_name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); - - i->userdata = userdata; - return bus_image_method_clone(message, i, error); -} - -static int method_mark_image_read_only(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image *i = NULL; - const char *name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - if (!image_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); - - r = image_find(name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - - i->userdata = userdata; - return bus_image_method_mark_read_only(message, i, error); -} - -static int clean_pool_done(Operation *operation, int ret, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_fclose_ FILE *f = NULL; - bool success; - size_t n; - int r; - - assert(operation); - assert(operation->extra_fd >= 0); - - if (lseek(operation->extra_fd, 0, SEEK_SET) == (off_t) -1) - return -errno; - - f = fdopen(operation->extra_fd, "re"); - if (!f) - return -errno; - - operation->extra_fd = -1; - - /* The resulting temporary file starts with a boolean value that indicates success or not. */ - errno = 0; - n = fread(&success, 1, sizeof(success), f); - if (n != sizeof(success)) - return ret < 0 ? ret : (errno != 0 ? -errno : -EIO); - - if (ret < 0) { - _cleanup_free_ char *name = NULL; - - /* The clean-up operation failed. In this case the resulting temporary file should contain a boolean - * set to false followed by the name of the failed image. Let's try to read this and use it for the - * error message. If we can't read it, don't mind, and return the naked error. */ - - if (success) /* The resulting temporary file could not be updated, ignore it. */ - return ret; - - r = read_nul_string(f, &name); - if (r < 0 || isempty(name)) /* Same here... */ - return ret; - - return sd_bus_error_set_errnof(error, ret, "Failed to remove image %s: %m", name); - } - - assert(success); - - r = sd_bus_message_new_method_return(operation->message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(st)"); - if (r < 0) - return r; - - /* On success the resulting temporary file will contain a list of image names that were removed followed by - * their size on disk. Let's read that and turn it into a bus message. */ - for (;;) { - _cleanup_free_ char *name = NULL; - uint64_t size; - - r = read_nul_string(f, &name); - if (r < 0) - return r; - if (isempty(name)) /* reached the end */ - break; - - errno = 0; - n = fread(&size, 1, sizeof(size), f); - if (n != sizeof(size)) - return errno != 0 ? -errno : -EIO; - - r = sd_bus_message_append(reply, "(st)", name, size); - 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_clean_pool(sd_bus_message *message, void *userdata, sd_bus_error *error) { - enum { - REMOVE_ALL, - REMOVE_HIDDEN, - } mode; - - _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; - _cleanup_close_ int result_fd = -1; - Manager *m = userdata; - Operation *operation; - const char *mm; - pid_t child; - int r; - - assert(message); - - if (m->n_operations >= OPERATIONS_MAX) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing operations."); - - r = sd_bus_message_read(message, "s", &mm); - if (r < 0) - return r; - - if (streq(mm, "all")) - mode = REMOVE_ALL; - else if (streq(mm, "hidden")) - mode = REMOVE_HIDDEN; - else - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mode '%s'.", mm); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); - - /* Create a temporary file we can dump information about deleted images into. We use a temporary file for this - * instead of a pipe or so, since this might grow quit large in theory and we don't want to process this - * continuously */ - result_fd = open_tmpfile_unlinkable("/tmp/", O_RDWR|O_CLOEXEC); - if (result_fd < 0) - return -errno; - - /* This might be a slow operation, run it asynchronously in a background process */ - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - - if (child == 0) { - _cleanup_(image_hashmap_freep) Hashmap *images = NULL; - bool success = true; - Image *image; - Iterator i; - ssize_t l; - - errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); - - images = hashmap_new(&string_hash_ops); - if (!images) { - r = -ENOMEM; - goto child_fail; - } - - r = image_discover(images); - if (r < 0) - goto child_fail; - - l = write(result_fd, &success, sizeof(success)); - if (l < 0) { - r = -errno; - goto child_fail; - } - - HASHMAP_FOREACH(image, images, i) { - - /* We can't remove vendor images (i.e. those in /usr) */ - if (IMAGE_IS_VENDOR(image)) - continue; - - if (IMAGE_IS_HOST(image)) - continue; - - if (mode == REMOVE_HIDDEN && !IMAGE_IS_HIDDEN(image)) - continue; - - r = image_remove(image); - if (r == -EBUSY) /* keep images that are currently being used. */ - continue; - if (r < 0) { - /* If the operation failed, let's override everything we wrote, and instead write there at which image we failed. */ - success = false; - (void) ftruncate(result_fd, 0); - (void) lseek(result_fd, 0, SEEK_SET); - (void) write(result_fd, &success, sizeof(success)); - (void) write(result_fd, image->name, strlen(image->name)+1); - goto child_fail; - } - - l = write(result_fd, image->name, strlen(image->name)+1); - if (l < 0) { - r = -errno; - goto child_fail; - } - - l = write(result_fd, &image->usage_exclusive, sizeof(image->usage_exclusive)); - if (l < 0) { - r = -errno; - goto child_fail; - } - } - - result_fd = safe_close(result_fd); - _exit(EXIT_SUCCESS); - - child_fail: - (void) write(errno_pipe_fd[1], &r, sizeof(r)); - _exit(EXIT_FAILURE); - } - - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - /* The clean-up might take a while, hence install a watch on the child and return */ - - r = operation_new(m, NULL, child, message, errno_pipe_fd[0], &operation); - if (r < 0) { - (void) sigkill_wait(child); - return r; - } - - operation->extra_fd = result_fd; - operation->done = clean_pool_done; - - result_fd = -1; - errno_pipe_fd[0] = -1; - - return 1; -} - -static int method_set_pool_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - uint64_t limit; - int r; - - assert(message); - - r = sd_bus_message_read(message, "t", &limit); - if (r < 0) - return r; - if (!FILE_SIZE_VALID_OR_INFINITY(limit)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "New limit out of range"); - - r = bus_verify_polkit_async( - message, - CAP_SYS_ADMIN, - "org.freedesktop.machine1.manage-machines", - NULL, - false, - UID_INVALID, - &m->polkit_registry, - error); - if (r < 0) - return r; - if (r == 0) - return 1; /* Will call us back */ - - /* Set up the machine directory if necessary */ - r = setup_machine_directory(limit, error); - if (r < 0) - return r; - - /* Resize the backing loopback device, if there is one, except if we asked to drop any limit */ - if (limit != (uint64_t) -1) { - r = btrfs_resize_loopback("/var/lib/machines", limit, false); - if (r == -ENOTTY) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); - if (r < 0 && r != -ENODEV) /* ignore ENODEV, as that's what is returned if the file system is not on loopback */ - return sd_bus_error_set_errnof(error, r, "Failed to adjust loopback limit: %m"); - } - - (void) btrfs_qgroup_set_limit("/var/lib/machines", 0, limit); - - r = btrfs_subvol_set_subtree_quota_limit("/var/lib/machines", 0, limit); - if (r == -ENOTTY) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); - if (r < 0) - return sd_bus_error_set_errnof(error, r, "Failed to adjust quota limit: %m"); - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_set_image_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image *i = NULL; - const char *name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - if (!image_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); - - r = image_find(name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - - i->userdata = userdata; - return bus_image_method_set_limit(message, i, error); -} - -static int method_map_from_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_fclose_ FILE *f = NULL; - Manager *m = userdata; - const char *name, *p; - Machine *machine; - uint32_t uid; - int r; - - r = sd_bus_message_read(message, "su", &name, &uid); - if (r < 0) - return r; - - if (!uid_is_valid(uid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - if (machine->class != MACHINE_CONTAINER) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Not supported for non-container machines."); - - p = procfs_file_alloca(machine->leader, "uid_map"); - f = fopen(p, "re"); - if (!f) - return -errno; - - for (;;) { - uid_t uid_base, uid_shift, uid_range, converted; - int k; - - errno = 0; - k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (uid < uid_base || uid >= uid_base + uid_range) - continue; - - converted = uid - uid_base + uid_shift; - if (!uid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - - return sd_bus_reply_method_return(message, "u", (uint32_t) converted); - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "Machine '%s' has no matching user mappings.", name); -} - -static int method_map_to_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - uid_t uid; - Iterator i; - int r; - - r = sd_bus_message_read(message, "u", &uid); - if (r < 0) - return r; - if (!uid_is_valid(uid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - if (uid < 0x10000) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "User " UID_FMT " belongs to host UID range", uid); - - HASHMAP_FOREACH(machine, m->machines, i) { - _cleanup_fclose_ FILE *f = NULL; - char p[strlen("/proc//uid_map") + DECIMAL_STR_MAX(pid_t) + 1]; - - if (machine->class != MACHINE_CONTAINER) - continue; - - xsprintf(p, "/proc/" UID_FMT "/uid_map", machine->leader); - f = fopen(p, "re"); - if (!f) { - log_warning_errno(errno, "Failed top open %s, ignoring,", p); - continue; - } - - for (;;) { - _cleanup_free_ char *o = NULL; - uid_t uid_base, uid_shift, uid_range, converted; - int k; - - errno = 0; - k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (uid < uid_shift || uid >= uid_shift + uid_range) - continue; - - converted = (uid - uid_shift + uid_base); - if (!uid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - - o = machine_bus_path(machine); - if (!o) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); - } - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "No matching user mapping for " UID_FMT ".", uid); -} - -static int method_map_from_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { - _cleanup_fclose_ FILE *f = NULL; - Manager *m = groupdata; - const char *name, *p; - Machine *machine; - uint32_t gid; - int r; - - r = sd_bus_message_read(message, "su", &name, &gid); - if (r < 0) - return r; - - if (!gid_is_valid(gid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - if (machine->class != MACHINE_CONTAINER) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Not supported for non-container machines."); - - p = procfs_file_alloca(machine->leader, "gid_map"); - f = fopen(p, "re"); - if (!f) - return -errno; - - for (;;) { - gid_t gid_base, gid_shift, gid_range, converted; - int k; - - errno = 0; - k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (gid < gid_base || gid >= gid_base + gid_range) - continue; - - converted = gid - gid_base + gid_shift; - if (!gid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - - return sd_bus_reply_method_return(message, "u", (uint32_t) converted); - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Machine '%s' has no matching group mappings.", name); -} - -static int method_map_to_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { - Manager *m = groupdata; - Machine *machine; - gid_t gid; - Iterator i; - int r; - - r = sd_bus_message_read(message, "u", &gid); - if (r < 0) - return r; - if (!gid_is_valid(gid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - if (gid < 0x10000) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Group " GID_FMT " belongs to host GID range", gid); - - HASHMAP_FOREACH(machine, m->machines, i) { - _cleanup_fclose_ FILE *f = NULL; - char p[strlen("/proc//gid_map") + DECIMAL_STR_MAX(pid_t) + 1]; - - if (machine->class != MACHINE_CONTAINER) - continue; - - xsprintf(p, "/proc/" GID_FMT "/gid_map", machine->leader); - f = fopen(p, "re"); - if (!f) { - log_warning_errno(errno, "Failed top open %s, ignoring,", p); - continue; - } - - for (;;) { - _cleanup_free_ char *o = NULL; - gid_t gid_base, gid_shift, gid_range, converted; - int k; - - errno = 0; - k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (gid < gid_shift || gid >= gid_shift + gid_range) - continue; - - converted = (gid - gid_shift + gid_base); - if (!gid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - - o = machine_bus_path(machine); - if (!o) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); - } - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "No matching group mapping for " GID_FMT ".", gid); -} - -const sd_bus_vtable manager_vtable[] = { - SD_BUS_VTABLE_START(0), - SD_BUS_PROPERTY("PoolPath", "s", property_get_pool_path, 0, 0), - SD_BUS_PROPERTY("PoolUsage", "t", property_get_pool_usage, 0, 0), - SD_BUS_PROPERTY("PoolLimit", "t", property_get_pool_limit, 0, 0), - SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetImage", "s", "o", method_get_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListMachines", NULL, "a(ssso)", method_list_machines, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListImages", NULL, "a(ssbttto)", method_list_images, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CreateMachine", "sayssusa(sv)", "o", method_create_machine, 0), - SD_BUS_METHOD("CreateMachineWithNetwork", "sayssusaia(sv)", "o", method_create_machine_with_network, 0), - SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine, 0), - SD_BUS_METHOD("RegisterMachineWithNetwork", "sayssusai", "o", method_register_machine_with_network, 0), - SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty, 0), - SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenMachineShell", "sssasas", "hs", method_open_machine_shell, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("BindMountMachine", "sssbb", NULL, method_bind_mount_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CopyFromMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CopyToMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenMachineRootDirectory", "s", "h", method_open_machine_root_directory, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("RemoveImage", "s", NULL, method_remove_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("RenameImage", "ss", NULL, method_rename_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CloneImage", "ssb", NULL, method_clone_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL, method_mark_image_read_only, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetPoolLimit", "t", NULL, method_set_pool_limit, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetImageLimit", "st", NULL, method_set_image_limit, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CleanPool", "s", "a(st)", method_clean_pool, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("MapFromMachineUser", "su", "u", method_map_from_machine_user, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("MapToMachineUser", "u", "sou", method_map_to_machine_user, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("MapFromMachineGroup", "su", "u", method_map_from_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("MapToMachineGroup", "u", "sou", method_map_to_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_SIGNAL("MachineNew", "so", 0), - SD_BUS_SIGNAL("MachineRemoved", "so", 0), - SD_BUS_VTABLE_END -}; - -int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *path, *result, *unit; - Manager *m = userdata; - Machine *machine; - uint32_t id; - 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; - } - - machine = hashmap_get(m->machine_units, unit); - if (!machine) - return 0; - - if (streq_ptr(path, machine->scope_job)) { - machine->scope_job = mfree(machine->scope_job); - - if (machine->started) { - if (streq(result, "done")) - machine_send_create_reply(machine, 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); - - machine_send_create_reply(machine, &e); - } - } - - machine_save(machine); - } - - machine_add_to_gc_queue(machine); - return 0; -} - -int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *unit = NULL; - const char *path; - Manager *m = userdata; - Machine *machine; - 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 for a unit */ - return 0; - if (r < 0) { - log_oom(); - return 0; - } - - machine = hashmap_get(m->machine_units, unit); - if (!machine) - return 0; - - machine_add_to_gc_queue(machine); - return 0; -} - -int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *path, *unit; - Manager *m = userdata; - Machine *machine; - 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; - } - - machine = hashmap_get(m->machine_units, unit); - if (!machine) - return 0; - - machine_add_to_gc_queue(machine); - return 0; -} - -int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - 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 machines */ - log_debug("System manager has been reloaded, rechecking machines..."); - - HASHMAP_FOREACH(machine, m->machines, i) - machine_add_to_gc_queue(machine); - - return 0; -} - -int manager_start_scope( - Manager *manager, - const char *scope, - pid_t pid, - const char *slice, - const char *description, - sd_bus_message *more_properties, - 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); - - 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; - } - - r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "(sv)", "Delegate", "b", 1); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", UINT64_C(16384)); - if (r < 0) - return bus_log_create_error(r); - - if (more_properties) { - r = sd_bus_message_copy(m, more_properties, true); - 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; - - if (job) { - const char *j; - char *copy; - - 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_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); - - 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)) { - - if (job) - *job = NULL; - - sd_bus_error_free(error); - return 0; - } - - return r; - } - - if (job) { - const char *j; - char *copy; - - 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_kill_unit(Manager *manager, const char *unit, 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, "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) { - 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, 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 !STR_IN_SET(state, "inactive", "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; -} - -int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) { - Machine *mm; - int r; - - assert(m); - assert(pid >= 1); - assert(machine); - - mm = hashmap_get(m->machine_leaders, PID_TO_PTR(pid)); - if (!mm) { - _cleanup_free_ char *unit = NULL; - - r = cg_pid_get_unit(pid, &unit); - if (r >= 0) - mm = hashmap_get(m->machine_units, unit); - } - if (!mm) - return 0; - - *machine = mm; - return 1; -} - -int manager_add_machine(Manager *m, const char *name, Machine **_machine) { - Machine *machine; - - assert(m); - assert(name); - - machine = hashmap_get(m->machines, name); - if (!machine) { - machine = machine_new(m, _MACHINE_CLASS_INVALID, name); - if (!machine) - return -ENOMEM; - } - - if (_machine) - *_machine = machine; - - return 0; -} diff --git a/src/grp-machine/systemd-machined/machined.c b/src/grp-machine/systemd-machined/machined.c index a01d1820a1..361d85cb3f 100644 --- a/src/grp-machine/systemd-machined/machined.c +++ b/src/grp-machine/systemd-machined/machined.c @@ -23,19 +23,18 @@ #include <systemd/sd-daemon.h> -#include "basic/alloc-util.h" -#include "basic/cgroup-util.h" -#include "basic/dirent-util.h" -#include "basic/fd-util.h" -#include "basic/formats-util.h" -#include "basic/hostname-util.h" -#include "basic/label.h" -#include "basic/signal-util.h" -#include "sd-bus/bus-error.h" -#include "shared/bus-util.h" -#include "shared/machine-image.h" - #include "machined.h" +#include "sd-bus/bus-error.h" +#include "sd-bus/bus-util.h" +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/cgroup-util.h" +#include "systemd-basic/dirent-util.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/formats-util.h" +#include "systemd-basic/hostname-util.h" +#include "systemd-basic/label.h" +#include "systemd-basic/signal-util.h" +#include "systemd-shared/machine-image.h" Manager *manager_new(void) { Manager *m; diff --git a/src/grp-machine/systemd-machined/machined.h b/src/grp-machine/systemd-machined/machined.h deleted file mode 100644 index b16ea3ef15..0000000000 --- a/src/grp-machine/systemd-machined/machined.h +++ /dev/null @@ -1,82 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2013 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 <systemd/sd-bus.h> -#include <systemd/sd-event.h> - -#include "basic/hashmap.h" -#include "basic/list.h" - -typedef struct Manager Manager; - -#include "image-dbus.h" -#include "machine-dbus.h" -#include "machine.h" -#include "operation.h" - -struct Manager { - sd_event *event; - sd_bus *bus; - - Hashmap *machines; - Hashmap *machine_units; - Hashmap *machine_leaders; - - Hashmap *polkit_registry; - - Hashmap *image_cache; - sd_event_source *image_cache_defer_event; - - LIST_HEAD(Machine, machine_gc_queue); - - Machine *host_machine; - - LIST_HEAD(Operation, operations); - unsigned n_operations; -}; - -Manager *manager_new(void); -void manager_free(Manager *m); - -int manager_add_machine(Manager *m, const char *name, Machine **_machine); -int manager_enumerate_machines(Manager *m); - -int manager_startup(Manager *m); -int manager_run(Manager *m); - -void manager_gc(Manager *m, bool drop_not_started); - -int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine); - -extern const sd_bus_vtable manager_vtable[]; - -int match_reloading(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_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error); - -int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, sd_bus_message *more_properties, sd_bus_error *error, char **job); -int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job); -int manager_kill_unit(Manager *manager, const char *unit, 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); diff --git a/src/grp-machine/systemd-machined/operation.c b/src/grp-machine/systemd-machined/operation.c deleted file mode 100644 index f16c38c47a..0000000000 --- a/src/grp-machine/systemd-machined/operation.c +++ /dev/null @@ -1,153 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2016 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/alloc-util.h" -#include "basic/fd-util.h" -#include "basic/process-util.h" - -#include "operation.h" - -static int operation_done(sd_event_source *s, const siginfo_t *si, void *userdata) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - Operation *o = userdata; - int r; - - assert(o); - assert(si); - - log_debug("Operating " PID_FMT " is now complete with code=%s status=%i", - o->pid, - sigchld_code_to_string(si->si_code), si->si_status); - - o->pid = 0; - - if (si->si_code != CLD_EXITED) { - r = sd_bus_error_setf(&error, SD_BUS_ERROR_FAILED, "Child died abnormally."); - goto fail; - } - - if (si->si_status == EXIT_SUCCESS) - r = 0; - else if (read(o->errno_fd, &r, sizeof(r)) != sizeof(r)) { /* Try to acquire error code for failed operation */ - r = sd_bus_error_setf(&error, SD_BUS_ERROR_FAILED, "Child failed."); - goto fail; - } - - if (o->done) { - /* A completion routine is set for this operation, call it. */ - r = o->done(o, r, &error); - if (r < 0) { - if (!sd_bus_error_is_set(&error)) - sd_bus_error_set_errno(&error, r); - - goto fail; - } - - } else { - /* The default operation when done is to simply return an error on failure or an empty success - * message on success. */ - if (r < 0) - goto fail; - - r = sd_bus_reply_method_return(o->message, NULL); - if (r < 0) - log_error_errno(r, "Failed to reply to message: %m"); - } - - operation_free(o); - return 0; - -fail: - r = sd_bus_reply_method_error(o->message, &error); - if (r < 0) - log_error_errno(r, "Failed to reply to message: %m"); - - operation_free(o); - return 0; -} - -int operation_new(Manager *manager, Machine *machine, pid_t child, sd_bus_message *message, int errno_fd, Operation **ret) { - Operation *o; - int r; - - assert(manager); - assert(child > 1); - assert(message); - assert(errno_fd >= 0); - - o = new0(Operation, 1); - if (!o) - return -ENOMEM; - - o->extra_fd = -1; - - r = sd_event_add_child(manager->event, &o->event_source, child, WEXITED, operation_done, o); - if (r < 0) { - free(o); - return r; - } - - o->pid = child; - o->message = sd_bus_message_ref(message); - o->errno_fd = errno_fd; - - LIST_PREPEND(operations, manager->operations, o); - manager->n_operations++; - o->manager = manager; - - if (machine) { - LIST_PREPEND(operations_by_machine, machine->operations, o); - o->machine = machine; - } - - log_debug("Started new operation " PID_FMT ".", child); - - /* At this point we took ownership of both the child and the errno file descriptor! */ - - if (ret) - *ret = o; - - return 0; -} - -Operation *operation_free(Operation *o) { - if (!o) - return NULL; - - sd_event_source_unref(o->event_source); - - safe_close(o->errno_fd); - safe_close(o->extra_fd); - - if (o->pid > 1) - (void) sigkill_wait(o->pid); - - sd_bus_message_unref(o->message); - - if (o->manager) { - LIST_REMOVE(operations, o->manager->operations, o); - o->manager->n_operations--; - } - - if (o->machine) - LIST_REMOVE(operations_by_machine, o->machine->operations, o); - - free(o); - return NULL; -} diff --git a/src/grp-machine/systemd-machined/operation.h b/src/grp-machine/systemd-machined/operation.h deleted file mode 100644 index 713ffe88c4..0000000000 --- a/src/grp-machine/systemd-machined/operation.h +++ /dev/null @@ -1,49 +0,0 @@ -#pragma once - -/*** - This file is part of systemd. - - Copyright 2016 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 <sys/types.h> - -#include <systemd/sd-bus.h> -#include <systemd/sd-event.h> - -#include "basic/list.h" - -typedef struct Operation Operation; - -#include "machined.h" - -#define OPERATIONS_MAX 64 - -struct Operation { - Manager *manager; - Machine *machine; - pid_t pid; - sd_bus_message *message; - int errno_fd; - int extra_fd; - sd_event_source *event_source; - int (*done)(Operation *o, int ret, sd_bus_error *error); - LIST_FIELDS(Operation, operations); - LIST_FIELDS(Operation, operations_by_machine); -}; - -int operation_new(Manager *manager, Machine *machine, pid_t child, sd_bus_message *message, int errno_fd, Operation **ret); -Operation *operation_free(Operation *o); diff --git a/src/grp-machine/systemd-machined/test-machine-tables.c b/src/grp-machine/systemd-machined/test-machine-tables.c deleted file mode 100644 index 7d44c55a4b..0000000000 --- a/src/grp-machine/systemd-machined/test-machine-tables.c +++ /dev/null @@ -1,30 +0,0 @@ -/*** - This file is part of systemd - - Copyright 2013 Zbigniew Jędrzejewski-Szmek - - 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 "shared/test-tables.h" - -#include "machine.h" - -int main(int argc, char **argv) { - test_table(machine_class, MACHINE_CLASS); - test_table(machine_state, MACHINE_STATE); - test_table(kill_who, KILL_WHO); - - return EXIT_SUCCESS; -} |