| /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| |
| /*** |
| 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 <pwd.h> |
| #include <sys/capability.h> |
| |
| #include "sd-id128.h" |
| #include "sd-messages.h" |
| #include "strv.h" |
| #include "mkdir.h" |
| #include "path-util.h" |
| #include "special.h" |
| #include "sleep-config.h" |
| #include "fileio-label.h" |
| #include "label.h" |
| #include "utf8.h" |
| #include "unit-name.h" |
| #include "virt.h" |
| #include "audit.h" |
| #include "bus-util.h" |
| #include "bus-error.h" |
| #include "logind.h" |
| #include "bus-common-errors.h" |
| #include "udev-util.h" |
| |
| static int property_get_idle_hint( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = userdata; |
| |
| assert(bus); |
| assert(reply); |
| assert(m); |
| |
| return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0); |
| } |
| |
| static int property_get_idle_since_hint( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = userdata; |
| dual_timestamp t; |
| |
| assert(bus); |
| assert(reply); |
| assert(m); |
| |
| manager_get_idle_hint(m, &t); |
| |
| return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic); |
| } |
| |
| static int property_get_inhibited( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = userdata; |
| InhibitWhat w; |
| |
| assert(bus); |
| assert(reply); |
| assert(m); |
| |
| w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY); |
| |
| return sd_bus_message_append(reply, "s", inhibit_what_to_string(w)); |
| } |
| |
| static int property_get_preparing( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = userdata; |
| bool b; |
| |
| assert(bus); |
| assert(reply); |
| assert(m); |
| |
| if (streq(property, "PreparingForShutdown")) |
| b = !!(m->action_what & INHIBIT_SHUTDOWN); |
| else |
| b = !!(m->action_what & INHIBIT_SLEEP); |
| |
| return sd_bus_message_append(reply, "b", b); |
| } |
| |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction); |
| |
| static int method_get_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = userdata; |
| const char *name; |
| Session *session; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_session_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Session *session = NULL; |
| Manager *m = userdata; |
| pid_t pid; |
| int r; |
| |
| assert(bus); |
| 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) { |
| _cleanup_bus_creds_unref_ 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_session_by_pid(m, pid, &session); |
| if (r < 0) |
| return r; |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, "PID "PID_FMT" does not belong to any known session", pid); |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = userdata; |
| uint32_t uid; |
| User *user; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "u", &uid); |
| if (r < 0) |
| return r; |
| |
| user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user "UID_FMT" known or logged in", uid); |
| |
| p = user_bus_path(user); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_user_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = userdata; |
| User *user = NULL; |
| pid_t pid; |
| int r; |
| |
| assert(bus); |
| 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) { |
| _cleanup_bus_creds_unref_ 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_user_by_pid(m, pid, &user); |
| if (r < 0) |
| return r; |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, "PID "PID_FMT" does not belong to any known or logged in user", pid); |
| |
| p = user_bus_path(user); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = userdata; |
| const char *name; |
| Seat *seat; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| seat = hashmap_get(m->seats, name); |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name); |
| |
| p = seat_bus_path(seat); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_list_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
| Manager *m = userdata; |
| Session *session; |
| Iterator i; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(susso)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(session, m->sessions, i) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_append(reply, "(susso)", |
| session->id, |
| (uint32_t) session->user->uid, |
| session->user->name, |
| session->seat ? session->seat->id : "", |
| p); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(bus, reply, NULL); |
| } |
| |
| static int method_list_users(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
| Manager *m = userdata; |
| User *user; |
| Iterator i; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(uso)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(user, m->users, i) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = user_bus_path(user); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_append(reply, "(uso)", |
| (uint32_t) user->uid, |
| user->name, |
| p); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(bus, reply, NULL); |
| } |
| |
| static int method_list_seats(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
| Manager *m = userdata; |
| Seat *seat; |
| Iterator i; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(so)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(seat, m->seats, i) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = seat_bus_path(seat); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_append(reply, "(so)", seat->id, p); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(bus, reply, NULL); |
| } |
| |
| static int method_list_inhibitors(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
| Manager *m = userdata; |
| Inhibitor *inhibitor; |
| Iterator i; |
| int r; |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(ssssuu)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(inhibitor, m->inhibitors, i) { |
| |
| r = sd_bus_message_append(reply, "(ssssuu)", |
| strempty(inhibit_what_to_string(inhibitor->what)), |
| strempty(inhibitor->who), |
| strempty(inhibitor->why), |
| strempty(inhibit_mode_to_string(inhibitor->mode)), |
| (uint32_t) inhibitor->uid, |
| (uint32_t) inhibitor->pid); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(bus, reply, NULL); |
| } |
| |
| static int method_create_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop; |
| uint32_t uid, leader, audit_id = 0; |
| _cleanup_free_ char *id = NULL; |
| Session *session = NULL; |
| Manager *m = userdata; |
| User *user = NULL; |
| Seat *seat = NULL; |
| int remote; |
| uint32_t vtnr = 0; |
| SessionType t; |
| SessionClass c; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "uusssssussbss", &uid, &leader, &service, &type, &class, &desktop, &cseat, &vtnr, &tty, &display, &remote, &remote_user, &remote_host); |
| if (r < 0) |
| return r; |
| |
| if (leader == 1) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID"); |
| |
| if (isempty(type)) |
| t = _SESSION_TYPE_INVALID; |
| else { |
| t = session_type_from_string(type); |
| if (t < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session type %s", type); |
| } |
| |
| if (isempty(class)) |
| c = _SESSION_CLASS_INVALID; |
| else { |
| c = session_class_from_string(class); |
| if (c < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session class %s", class); |
| } |
| |
| if (isempty(desktop)) |
| desktop = NULL; |
| else { |
| if (!string_is_safe(desktop)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid desktop string %s", desktop); |
| } |
| |
| if (isempty(cseat)) |
| seat = NULL; |
| else { |
| seat = hashmap_get(m->seats, cseat); |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", cseat); |
| } |
| |
| if (tty_is_vc(tty)) { |
| int v; |
| |
| if (!seat) |
| seat = m->seat0; |
| else if (seat != m->seat0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "TTY %s is virtual console but seat %s is not seat0", tty, seat->id); |
| |
| v = vtnr_from_tty(tty); |
| if (v <= 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot determine VT number from virtual console TTY %s", tty); |
| |
| if (!vtnr) |
| vtnr = (uint32_t) v; |
| else if (vtnr != (uint32_t) v) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified TTY and VT number do not match"); |
| |
| } else if (tty_is_console(tty)) { |
| |
| if (!seat) |
| seat = m->seat0; |
| else if (seat != m->seat0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but seat is not seat0"); |
| |
| if (vtnr != 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but VT number is not 0"); |
| } |
| |
| if (seat) { |
| if (seat_has_vts(seat)) { |
| if (!vtnr || vtnr > 63) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "VT number out of range"); |
| } else { |
| if (vtnr != 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat has no VTs but VT number not 0"); |
| } |
| } |
| |
| r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
| if (r < 0) |
| return r; |
| |
| if (t == _SESSION_TYPE_INVALID) { |
| if (!isempty(display)) |
| t = SESSION_X11; |
| else if (!isempty(tty)) |
| t = SESSION_TTY; |
| else |
| t = SESSION_UNSPECIFIED; |
| } |
| |
| if (c == _SESSION_CLASS_INVALID) { |
| if (t == SESSION_UNSPECIFIED) |
| c = SESSION_BACKGROUND; |
| else |
| c = SESSION_USER; |
| } |
| |
| if (leader <= 0) { |
| _cleanup_bus_creds_unref_ 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; |
| } |
| |
| manager_get_session_by_pid(m, leader, &session); |
| if (session) { |
| _cleanup_free_ char *path = NULL; |
| _cleanup_close_ int fifo_fd = -1; |
| |
| /* Session already exists, client is probably |
| * something like "su" which changes uid but is still |
| * the same session */ |
| |
| fifo_fd = session_create_fifo(session); |
| if (fifo_fd < 0) |
| return fifo_fd; |
| |
| path = session_bus_path(session); |
| if (!path) |
| return -ENOMEM; |
| |
| log_debug("Sending reply about an existing session: " |
| "id=%s object_path=%s uid=%u runtime_path=%s " |
| "session_fd=%d seat=%s vtnr=%u", |
| session->id, |
| path, |
| (uint32_t) session->user->uid, |
| session->user->runtime_path, |
| fifo_fd, |
| session->seat ? session->seat->id : "", |
| (uint32_t) session->vtnr); |
| |
| return sd_bus_reply_method_return( |
| message, "soshusub", |
| session->id, |
| path, |
| session->user->runtime_path, |
| fifo_fd, |
| (uint32_t) session->user->uid, |
| session->seat ? session->seat->id : "", |
| (uint32_t) session->vtnr, |
| true); |
| } |
| |
| audit_session_from_pid(leader, &audit_id); |
| if (audit_id > 0) { |
| /* Keep our session IDs and the audit session IDs in sync */ |
| |
| if (asprintf(&id, "%"PRIu32, audit_id) < 0) |
| return -ENOMEM; |
| |
| /* Wut? There's already a session by this name and we |
| * didn't find it above? Weird, then let's not trust |
| * the audit data and let's better register a new |
| * ID */ |
| if (hashmap_get(m->sessions, id)) { |
| log_warning("Existing logind session ID %s used by new audit session, ignoring", id); |
| audit_id = 0; |
| |
| free(id); |
| id = NULL; |
| } |
| } |
| |
| if (!id) { |
| do { |
| free(id); |
| id = NULL; |
| |
| if (asprintf(&id, "c%lu", ++m->session_counter) < 0) |
| return -ENOMEM; |
| |
| } while (hashmap_get(m->sessions, id)); |
| } |
| |
| r = manager_add_user_by_uid(m, uid, &user); |
| if (r < 0) |
| goto fail; |
| |
| r = manager_add_session(m, id, &session); |
| if (r < 0) |
| goto fail; |
| |
| session_set_user(session, user); |
| |
| session->leader = leader; |
| session->audit_id = audit_id; |
| session->type = t; |
| session->class = c; |
| session->remote = remote; |
| session->vtnr = vtnr; |
| |
| if (!isempty(tty)) { |
| session->tty = strdup(tty); |
| if (!session->tty) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (!isempty(display)) { |
| session->display = strdup(display); |
| if (!session->display) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (!isempty(remote_user)) { |
| session->remote_user = strdup(remote_user); |
| if (!session->remote_user) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (!isempty(remote_host)) { |
| session->remote_host = strdup(remote_host); |
| if (!session->remote_host) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (!isempty(service)) { |
| session->service = strdup(service); |
| if (!session->service) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (!isempty(desktop)) { |
| session->desktop = strdup(desktop); |
| if (!session->desktop) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (seat) { |
| r = seat_attach_session(seat, session); |
| if (r < 0) |
| goto fail; |
| } |
| |
| r = session_start(session); |
| if (r < 0) |
| goto fail; |
| |
| session->create_message = sd_bus_message_ref(message); |
| |
| /* Now, let's wait until the slice unit and stuff got |
| * created. We send the reply back from |
| * session_send_create_reply().*/ |
| |
| return 1; |
| |
| fail: |
| if (session) |
| session_add_to_gc_queue(session); |
| |
| if (user) |
| user_add_to_gc_queue(user); |
| |
| return r; |
| } |
| |
| static int method_release_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| Session *session; |
| const char *name; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| session_release(session); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| Session *session; |
| const char *name; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| r = session_activate(session); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_activate_session_on_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *session_name, *seat_name; |
| Manager *m = userdata; |
| Session *session; |
| Seat *seat; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| /* Same as ActivateSession() but refuses to work if |
| * the seat doesn't match */ |
| |
| r = sd_bus_message_read(message, "ss", &session_name, &seat_name); |
| if (r < 0) |
| return r; |
| |
| session = hashmap_get(m->sessions, session_name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", session_name); |
| |
| seat = hashmap_get(m->seats, seat_name); |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", seat_name); |
| |
| if (session->seat != seat) |
| return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", session_name, seat_name); |
| |
| r = session_activate(session); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_lock_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| Session *session; |
| const char *name; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| r = session_send_lock(session, streq(sd_bus_message_get_member(message), "LockSession")); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_lock_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions")); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_kill_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *name, *swho; |
| Manager *m = userdata; |
| Session *session; |
| int32_t signo; |
| KillWho who; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "ssi", &name, &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 (signo <= 0 || signo >= _NSIG) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| r = session_kill(session, who, signo); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_kill_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| uint32_t uid; |
| int32_t signo; |
| User *user; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "ui", &uid, &signo); |
| if (r < 0) |
| return r; |
| |
| if (signo <= 0 || signo >= _NSIG) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); |
| |
| user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user "UID_FMT" known or logged in", uid); |
| |
| r = user_kill(user, signo); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_terminate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| const char *name; |
| Session *session; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| r = session_stop(session, true); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_terminate_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| uint32_t uid; |
| User *user; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "u", &uid); |
| if (r < 0) |
| return r; |
| |
| user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user "UID_FMT" known or logged in", uid); |
| |
| r = user_stop(user, true); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_terminate_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| const char *name; |
| Seat *seat; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| seat = hashmap_get(m->seats, name); |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name); |
| |
| r = seat_stop_sessions(seat, true); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_set_user_linger(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *cc = NULL; |
| Manager *m = userdata; |
| int b, r; |
| struct passwd *pw; |
| const char *path; |
| uint32_t uid; |
| int interactive; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive); |
| if (r < 0) |
| return r; |
| |
| errno = 0; |
| pw = getpwuid(uid); |
| if (!pw) |
| return errno ? -errno : -ENOENT; |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-user-linger", |
| interactive, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| mkdir_p_label("/var/lib/systemd", 0755); |
| |
| r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0); |
| if (r < 0) |
| return r; |
| |
| cc = cescape(pw->pw_name); |
| if (!cc) |
| return -ENOMEM; |
| |
| path = strappenda("/var/lib/systemd/linger/", cc); |
| if (b) { |
| User *u; |
| |
| r = touch(path); |
| if (r < 0) |
| return r; |
| |
| if (manager_add_user_by_uid(m, uid, &u) >= 0) |
| user_start(u); |
| |
| } else { |
| User *u; |
| |
| r = unlink(path); |
| if (r < 0 && errno != ENOENT) |
| return -errno; |
| |
| u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); |
| if (u) |
| user_add_to_gc_queue(u); |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int trigger_device(Manager *m, struct udev_device *d) { |
| _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; |
| struct udev_list_entry *first, *item; |
| int r; |
| |
| assert(m); |
| |
| e = udev_enumerate_new(m->udev); |
| if (!e) |
| return -ENOMEM; |
| |
| if (d) { |
| r = udev_enumerate_add_match_parent(e, d); |
| if (r < 0) |
| return r; |
| } |
| |
| r = udev_enumerate_scan_devices(e); |
| if (r < 0) |
| return r; |
| |
| first = udev_enumerate_get_list_entry(e); |
| udev_list_entry_foreach(item, first) { |
| _cleanup_free_ char *t = NULL; |
| const char *p; |
| |
| p = udev_list_entry_get_name(item); |
| |
| t = strappend(p, "/uevent"); |
| if (!t) |
| return -ENOMEM; |
| |
| write_string_file(t, "change"); |
| } |
| |
| return 0; |
| } |
| |
| static int attach_device(Manager *m, const char *seat, const char *sysfs) { |
| _cleanup_udev_device_unref_ struct udev_device *d = NULL; |
| _cleanup_free_ char *rule = NULL, *file = NULL; |
| const char *id_for_seat; |
| int r; |
| |
| assert(m); |
| assert(seat); |
| assert(sysfs); |
| |
| d = udev_device_new_from_syspath(m->udev, sysfs); |
| if (!d) |
| return -ENODEV; |
| |
| if (!udev_device_has_tag(d, "seat")) |
| return -ENODEV; |
| |
| id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT"); |
| if (!id_for_seat) |
| return -ENODEV; |
| |
| if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) |
| return -ENOMEM; |
| |
| if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) |
| return -ENOMEM; |
| |
| mkdir_p_label("/etc/udev/rules.d", 0755); |
| mac_selinux_init("/etc"); |
| r = write_string_file_atomic_label(file, rule); |
| if (r < 0) |
| return r; |
| |
| return trigger_device(m, d); |
| } |
| |
| static int flush_devices(Manager *m) { |
| _cleanup_closedir_ DIR *d; |
| |
| assert(m); |
| |
| d = opendir("/etc/udev/rules.d"); |
| if (!d) { |
| if (errno != ENOENT) |
| log_warning_errno(errno, "Failed to open /etc/udev/rules.d: %m"); |
| } else { |
| struct dirent *de; |
| |
| while ((de = readdir(d))) { |
| |
| if (!dirent_is_file(de)) |
| continue; |
| |
| if (!startswith(de->d_name, "72-seat-")) |
| continue; |
| |
| if (!endswith(de->d_name, ".rules")) |
| continue; |
| |
| if (unlinkat(dirfd(d), de->d_name, 0) < 0) |
| log_warning_errno(errno, "Failed to unlink %s: %m", de->d_name); |
| } |
| } |
| |
| return trigger_device(m, NULL); |
| } |
| |
| static int method_attach_device(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *sysfs, *seat; |
| Manager *m = userdata; |
| int interactive, r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive); |
| if (r < 0) |
| return r; |
| |
| if (!path_startswith(sysfs, "/sys")) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs); |
| |
| if (!seat_name_is_valid(seat)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.attach-device", |
| interactive, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = attach_device(m, seat, sysfs); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_flush_devices(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| int interactive, r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "b", &interactive); |
| if (r < 0) |
| return r; |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.flush-devices", |
| interactive, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = flush_devices(m); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int have_multiple_sessions( |
| Manager *m, |
| uid_t uid) { |
| |
| Session *session; |
| Iterator i; |
| |
| assert(m); |
| |
| /* Check for other users' sessions. Greeter sessions do not |
| * count, and non-login sessions do not count either. */ |
| HASHMAP_FOREACH(session, m->sessions, i) |
| if (session->class == SESSION_USER && |
| session->user->uid != uid) |
| return true; |
| |
| return false; |
| } |
| |
| static int bus_manager_log_shutdown( |
| Manager *m, |
| InhibitWhat w, |
| const char *unit_name) { |
| |
| const char *p, *q; |
| |
| assert(m); |
| assert(unit_name); |
| |
| if (w != INHIBIT_SHUTDOWN) |
| return 0; |
| |
| if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) { |
| p = "MESSAGE=System is powering down."; |
| q = "SHUTDOWN=power-off"; |
| } else if (streq(unit_name, SPECIAL_HALT_TARGET)) { |
| p = "MESSAGE=System is halting."; |
| q = "SHUTDOWN=halt"; |
| } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) { |
| p = "MESSAGE=System is rebooting."; |
| q = "SHUTDOWN=reboot"; |
| } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) { |
| p = "MESSAGE=System is rebooting with kexec."; |
| q = "SHUTDOWN=kexec"; |
| } else { |
| p = "MESSAGE=System is shutting down."; |
| q = NULL; |
| } |
| |
| return log_struct(LOG_NOTICE, |
| LOG_MESSAGE_ID(SD_MESSAGE_SHUTDOWN), |
| p, |
| q, |
| NULL); |
| } |
| |
| static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) { |
| Manager *m = userdata; |
| |
| assert(e); |
| assert(m); |
| |
| m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source); |
| return 0; |
| } |
| |
| int manager_set_lid_switch_ignore(Manager *m, usec_t until) { |
| int r; |
| |
| assert(m); |
| |
| if (until <= now(CLOCK_MONOTONIC)) |
| return 0; |
| |
| /* We want to ignore the lid switch for a while after each |
| * suspend, and after boot-up. Hence let's install a timer for |
| * this. As long as the event source exists we ignore the lid |
| * switch. */ |
| |
| if (m->lid_switch_ignore_event_source) { |
| usec_t u; |
| |
| r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u); |
| if (r < 0) |
| return r; |
| |
| if (until <= u) |
| return 0; |
| |
| r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until); |
| } else |
| r = sd_event_add_time( |
| m->event, |
| &m->lid_switch_ignore_event_source, |
| CLOCK_MONOTONIC, |
| until, 0, |
| lid_switch_ignore_handler, m); |
| |
| return r; |
| } |
| |
| static int execute_shutdown_or_sleep( |
| Manager *m, |
| InhibitWhat w, |
| const char *unit_name, |
| sd_bus_error *error) { |
| |
| _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
| const char *p; |
| char *c; |
| int r; |
| |
| assert(m); |
| assert(w >= 0); |
| assert(w < _INHIBIT_WHAT_MAX); |
| assert(unit_name); |
| |
| bus_manager_log_shutdown(m, w, unit_name); |
| |
| r = sd_bus_call_method( |
| m->bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "StartUnit", |
| error, |
| &reply, |
| "ss", unit_name, "replace-irreversibly"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_read(reply, "o", &p); |
| if (r < 0) |
| return r; |
| |
| c = strdup(p); |
| if (!c) |
| return -ENOMEM; |
| |
| m->action_unit = unit_name; |
| free(m->action_job); |
| m->action_job = c; |
| m->action_what = w; |
| |
| /* Make sure the lid switch is ignored for a while */ |
| manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + IGNORE_LID_SWITCH_SUSPEND_USEC); |
| |
| return 0; |
| } |
| |
| static int delay_shutdown_or_sleep( |
| Manager *m, |
| InhibitWhat w, |
| const char *unit_name) { |
| |
| assert(m); |
| assert(w >= 0); |
| assert(w < _INHIBIT_WHAT_MAX); |
| assert(unit_name); |
| |
| m->action_timestamp = now(CLOCK_MONOTONIC); |
| m->action_unit = unit_name; |
| m->action_what = w; |
| |
| return 0; |
| } |
| |
| static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { |
| |
| static const char * const signal_name[_INHIBIT_WHAT_MAX] = { |
| [INHIBIT_SHUTDOWN] = "PrepareForShutdown", |
| [INHIBIT_SLEEP] = "PrepareForSleep" |
| }; |
| |
| int active = _active; |
| |
| assert(m); |
| assert(w >= 0); |
| assert(w < _INHIBIT_WHAT_MAX); |
| assert(signal_name[w]); |
| |
| return sd_bus_emit_signal(m->bus, |
| "/org/freedesktop/login1", |
| "org.freedesktop.login1.Manager", |
| signal_name[w], |
| "b", |
| active); |
| } |
| |
| int bus_manager_shutdown_or_sleep_now_or_later( |
| Manager *m, |
| const char *unit_name, |
| InhibitWhat w, |
| sd_bus_error *error) { |
| |
| bool delayed; |
| int r; |
| |
| assert(m); |
| assert(unit_name); |
| assert(w >= 0); |
| assert(w <= _INHIBIT_WHAT_MAX); |
| assert(!m->action_job); |
| |
| /* Tell everybody to prepare for shutdown/sleep */ |
| send_prepare_for(m, w, true); |
| |
| delayed = |
| m->inhibit_delay_max > 0 && |
| manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL); |
| |
| if (delayed) |
| /* Shutdown is delayed, keep in mind what we |
| * want to do, and start a timeout */ |
| r = delay_shutdown_or_sleep(m, w, unit_name); |
| else |
| /* Shutdown is not delayed, execute it |
| * immediately */ |
| r = execute_shutdown_or_sleep(m, w, unit_name, error); |
| |
| return r; |
| } |
| |
| static int method_do_shutdown_or_sleep( |
| Manager *m, |
| sd_bus_message *message, |
| const char *unit_name, |
| InhibitWhat w, |
| const char *action, |
| const char *action_multiple_sessions, |
| const char *action_ignore_inhibit, |
| const char *sleep_verb, |
| sd_bus_message_handler_t method, |
| sd_bus_error *error) { |
| |
| _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
| bool multiple_sessions, blocked; |
| int interactive, r; |
| uid_t uid; |
| |
| assert(m); |
| assert(message); |
| assert(unit_name); |
| assert(w >= 0); |
| assert(w <= _INHIBIT_WHAT_MAX); |
| assert(action); |
| assert(action_multiple_sessions); |
| assert(action_ignore_inhibit); |
| assert(method); |
| |
| r = sd_bus_message_read(message, "b", &interactive); |
| if (r < 0) |
| return r; |
| |
| /* Don't allow multiple jobs being executed at the same time */ |
| if (m->action_what) |
| return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress"); |
| |
| if (sleep_verb) { |
| r = can_sleep(sleep_verb); |
| if (r < 0) |
| return r; |
| |
| if (r == 0) |
| return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, "Sleep verb not supported"); |
| } |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_uid(creds, &uid); |
| if (r < 0) |
| return r; |
| |
| r = have_multiple_sessions(m, uid); |
| if (r < 0) |
| return r; |
| |
| multiple_sessions = r > 0; |
| blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL); |
| |
| if (multiple_sessions) { |
| r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, interactive, &m->polkit_registry, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| } |
| |
| if (blocked) { |
| r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, interactive, &m->polkit_registry, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| } |
| |
| if (!multiple_sessions && !blocked) { |
| r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, interactive, &m->polkit_registry, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| } |
| |
| r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| SPECIAL_POWEROFF_TARGET, |
| INHIBIT_SHUTDOWN, |
| "org.freedesktop.login1.power-off", |
| "org.freedesktop.login1.power-off-multiple-sessions", |
| "org.freedesktop.login1.power-off-ignore-inhibit", |
| NULL, |
| method_poweroff, |
| error); |
| } |
| |
| static int method_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| SPECIAL_REBOOT_TARGET, |
| INHIBIT_SHUTDOWN, |
| "org.freedesktop.login1.reboot", |
| "org.freedesktop.login1.reboot-multiple-sessions", |
| "org.freedesktop.login1.reboot-ignore-inhibit", |
| NULL, |
| method_reboot, |
| error); |
| } |
| |
| static int method_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| SPECIAL_SUSPEND_TARGET, |
| INHIBIT_SLEEP, |
| "org.freedesktop.login1.suspend", |
| "org.freedesktop.login1.suspend-multiple-sessions", |
| "org.freedesktop.login1.suspend-ignore-inhibit", |
| "suspend", |
| method_suspend, |
| error); |
| } |
| |
| static int method_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| SPECIAL_HIBERNATE_TARGET, |
| INHIBIT_SLEEP, |
| "org.freedesktop.login1.hibernate", |
| "org.freedesktop.login1.hibernate-multiple-sessions", |
| "org.freedesktop.login1.hibernate-ignore-inhibit", |
| "hibernate", |
| method_hibernate, |
| error); |
| } |
| |
| static int method_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| SPECIAL_HYBRID_SLEEP_TARGET, |
| INHIBIT_SLEEP, |
| "org.freedesktop.login1.hibernate", |
| "org.freedesktop.login1.hibernate-multiple-sessions", |
| "org.freedesktop.login1.hibernate-ignore-inhibit", |
| "hybrid-sleep", |
| method_hybrid_sleep, |
| error); |
| } |
| |
| static int method_can_shutdown_or_sleep( |
| Manager *m, |
| sd_bus_message *message, |
| InhibitWhat w, |
| const char *action, |
| const char *action_multiple_sessions, |
| const char *action_ignore_inhibit, |
| const char *sleep_verb, |
| sd_bus_error *error) { |
| |
| _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
| bool multiple_sessions, challenge, blocked; |
| const char *result = NULL; |
| uid_t uid; |
| int r; |
| |
| assert(m); |
| assert(message); |
| assert(w >= 0); |
| assert(w <= _INHIBIT_WHAT_MAX); |
| assert(action); |
| assert(action_multiple_sessions); |
| assert(action_ignore_inhibit); |
| |
| if (sleep_verb) { |
| r = can_sleep(sleep_verb); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return sd_bus_reply_method_return(message, "s", "na"); |
| } |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_uid(creds, &uid); |
| if (r < 0) |
| return r; |
| |
| r = have_multiple_sessions(m, uid); |
| if (r < 0) |
| return r; |
| |
| multiple_sessions = r > 0; |
| blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL); |
| |
| if (multiple_sessions) { |
| r = bus_verify_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, false, &challenge, error); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) |
| result = "yes"; |
| else if (challenge) |
| result = "challenge"; |
| else |
| result = "no"; |
| } |
| |
| if (blocked) { |
| r = bus_verify_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, false, &challenge, error); |
| if (r < 0) |
| return r; |
| |
| if (r > 0 && !result) |
| result = "yes"; |
| else if (challenge && (!result || streq(result, "yes"))) |
| result = "challenge"; |
| else |
| result = "no"; |
| } |
| |
| if (!multiple_sessions && !blocked) { |
| /* If neither inhibit nor multiple sessions |
| * apply then just check the normal policy */ |
| |
| r = bus_verify_polkit(message, CAP_SYS_BOOT, action, false, &challenge, error); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) |
| result = "yes"; |
| else if (challenge) |
| result = "challenge"; |
| else |
| result = "no"; |
| } |
| |
| return sd_bus_reply_method_return(message, "s", result); |
| } |
| |
| static int method_can_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, |
| INHIBIT_SHUTDOWN, |
| "org.freedesktop.login1.power-off", |
| "org.freedesktop.login1.power-off-multiple-sessions", |
| "org.freedesktop.login1.power-off-ignore-inhibit", |
| NULL, |
| error); |
| } |
| |
| static int method_can_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, |
| INHIBIT_SHUTDOWN, |
| "org.freedesktop.login1.reboot", |
| "org.freedesktop.login1.reboot-multiple-sessions", |
| "org.freedesktop.login1.reboot-ignore-inhibit", |
| NULL, |
| error); |
| } |
| |
| static int method_can_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, |
| INHIBIT_SLEEP, |
| "org.freedesktop.login1.suspend", |
| "org.freedesktop.login1.suspend-multiple-sessions", |
| "org.freedesktop.login1.suspend-ignore-inhibit", |
| "suspend", |
| error); |
| } |
| |
| static int method_can_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, |
| INHIBIT_SLEEP, |
| "org.freedesktop.login1.hibernate", |
| "org.freedesktop.login1.hibernate-multiple-sessions", |
| "org.freedesktop.login1.hibernate-ignore-inhibit", |
| "hibernate", |
| error); |
| } |
| |
| static int method_can_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, |
| INHIBIT_SLEEP, |
| "org.freedesktop.login1.hibernate", |
| "org.freedesktop.login1.hibernate-multiple-sessions", |
| "org.freedesktop.login1.hibernate-ignore-inhibit", |
| "hybrid-sleep", |
| error); |
| } |
| |
| static int method_inhibit(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; |
| const char *who, *why, *what, *mode; |
| _cleanup_free_ char *id = NULL; |
| _cleanup_close_ int fifo_fd = -1; |
| Manager *m = userdata; |
| Inhibitor *i = NULL; |
| InhibitMode mm; |
| InhibitWhat w; |
| pid_t pid; |
| uid_t uid; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode); |
| if (r < 0) |
| return r; |
| |
| w = inhibit_what_from_string(what); |
| if (w <= 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid what specification %s", what); |
| |
| mm = inhibit_mode_from_string(mode); |
| if (mm < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid mode specification %s", mode); |
| |
| /* Delay is only supported for shutdown/sleep */ |
| if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP))) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delay inhibitors only supported for shutdown and sleep"); |
| |
| /* Don't allow taking delay locks while we are already |
| * executing the operation. We shouldn't create the impression |
| * that the lock was successful if the machine is about to go |
| * down/suspend any moment. */ |
| if (m->action_what & w) |
| return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running"); |
| |
| r = bus_verify_polkit_async(message, CAP_SYS_BOOT, |
| w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") : |
| w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") : |
| w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" : |
| w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" : |
| w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" : |
| w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" : |
| "org.freedesktop.login1.inhibit-handle-lid-switch", |
| false, &m->polkit_registry, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID, &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_uid(creds, &uid); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_pid(creds, &pid); |
| if (r < 0) |
| return r; |
| |
| do { |
| free(id); |
| id = NULL; |
| |
| if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0) |
| return -ENOMEM; |
| |
| } while (hashmap_get(m->inhibitors, id)); |
| |
| r = manager_add_inhibitor(m, id, &i); |
| if (r < 0) |
| return r; |
| |
| i->what = w; |
| i->mode = mm; |
| i->pid = pid; |
| i->uid = uid; |
| i->why = strdup(why); |
| i->who = strdup(who); |
| |
| if (!i->why || !i->who) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| |
| fifo_fd = inhibitor_create_fifo(i); |
| if (fifo_fd < 0) { |
| r = fifo_fd; |
| goto fail; |
| } |
| |
| inhibitor_start(i); |
| |
| return sd_bus_reply_method_return(message, "h", fifo_fd); |
| |
| fail: |
| if (i) |
| inhibitor_free(i); |
| |
| return r; |
| } |
| |
| const sd_bus_vtable manager_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| |
| SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleLidSwitchDocked", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_docked), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0), |
| SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0), |
| |
| SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("GetUser", "u", "o", method_get_user, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("GetUserByPID", "u", "o", method_get_user_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("GetSeat", "s", "o", method_get_seat, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ListSessions", NULL, "a(susso)", method_list_sessions, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ListUsers", NULL, "a(uso)", method_list_users, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ListSeats", NULL, "a(so)", method_list_seats, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ListInhibitors", NULL, "a(ssssuu)", method_list_inhibitors, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("CreateSession", "uusssssussbssa(sv)", "soshusub", method_create_session, 0), |
| SD_BUS_METHOD("ReleaseSession", "s", NULL, method_release_session, 0), |
| SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ActivateSessionOnSeat", "ss", NULL, method_activate_session_on_seat, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("LockSession", "s", NULL, method_lock_session, 0), |
| SD_BUS_METHOD("UnlockSession", "s", NULL, method_lock_session, 0), |
| SD_BUS_METHOD("LockSessions", NULL, NULL, method_lock_sessions, 0), |
| SD_BUS_METHOD("UnlockSessions", NULL, NULL, method_lock_sessions, 0), |
| SD_BUS_METHOD("KillSession", "ssi", NULL, method_kill_session, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)), |
| SD_BUS_METHOD("KillUser", "ui", NULL, method_kill_user, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)), |
| SD_BUS_METHOD("TerminateSession", "s", NULL, method_terminate_session, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)), |
| SD_BUS_METHOD("TerminateUser", "u", NULL, method_terminate_user, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)), |
| SD_BUS_METHOD("TerminateSeat", "s", NULL, method_terminate_seat, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)), |
| SD_BUS_METHOD("SetUserLinger", "ubb", NULL, method_set_user_linger, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("AttachDevice", "ssb", NULL, method_attach_device, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("FlushDevices", "b", NULL, method_flush_devices, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("CanReboot", NULL, "s", method_can_reboot, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED), |
| |
| SD_BUS_SIGNAL("SessionNew", "so", 0), |
| SD_BUS_SIGNAL("SessionRemoved", "so", 0), |
| SD_BUS_SIGNAL("UserNew", "uo", 0), |
| SD_BUS_SIGNAL("UserRemoved", "uo", 0), |
| SD_BUS_SIGNAL("SeatNew", "so", 0), |
| SD_BUS_SIGNAL("SeatRemoved", "so", 0), |
| SD_BUS_SIGNAL("PrepareForShutdown", "b", 0), |
| SD_BUS_SIGNAL("PrepareForSleep", "b", 0), |
| |
| SD_BUS_VTABLE_END |
| }; |
| |
| static int session_jobs_reply(Session *s, const char *unit, const char *result) { |
| int r = 0; |
| |
| assert(s); |
| assert(unit); |
| |
| if (!s->started) |
| return r; |
| |
| if (streq(result, "done")) |
| r = session_send_create_reply(s, NULL); |
| else { |
| _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL; |
| |
| sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); |
| r = session_send_create_reply(s, &e); |
| } |
| |
| return r; |
| } |
| |
| int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *path, *result, *unit; |
| Manager *m = userdata; |
| Session *session; |
| uint32_t id; |
| User *user; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return r; |
| } |
| |
| if (m->action_job && streq(m->action_job, path)) { |
| log_info("Operation finished."); |
| |
| /* Tell people that they now may take a lock again */ |
| send_prepare_for(m, m->action_what, false); |
| |
| free(m->action_job); |
| m->action_job = NULL; |
| m->action_unit = NULL; |
| m->action_what = 0; |
| return 0; |
| } |
| |
| session = hashmap_get(m->session_units, unit); |
| if (session) { |
| |
| if (streq_ptr(path, session->scope_job)) { |
| free(session->scope_job); |
| session->scope_job = NULL; |
| } |
| |
| session_jobs_reply(session, unit, result); |
| |
| session_save(session); |
| session_add_to_gc_queue(session); |
| } |
| |
| user = hashmap_get(m->user_units, unit); |
| if (user) { |
| |
| if (streq_ptr(path, user->service_job)) { |
| free(user->service_job); |
| user->service_job = NULL; |
| } |
| |
| if (streq_ptr(path, user->slice_job)) { |
| free(user->slice_job); |
| user->slice_job = NULL; |
| } |
| |
| LIST_FOREACH(sessions_by_user, session, user->sessions) { |
| session_jobs_reply(session, unit, result); |
| } |
| |
| user_save(user); |
| user_add_to_gc_queue(user); |
| } |
| |
| return 0; |
| } |
| |
| int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *path, *unit; |
| Manager *m = userdata; |
| Session *session; |
| User *user; |
| int r; |
| |
| assert(bus); |
| assert(message); |
| assert(m); |
| |
| r = sd_bus_message_read(message, "so", &unit, &path); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return r; |
| } |
| |
| session = hashmap_get(m->session_units, unit); |
| if (session) |
| session_add_to_gc_queue(session); |
| |
| user = hashmap_get(m->user_units, unit); |
| if (user) |
| user_add_to_gc_queue(user); |
| |
| return 0; |
| } |
| |
| int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *unit = NULL; |
| Manager *m = userdata; |
| const char *path; |
| Session *session; |
| User *user; |
| int r; |
| |
| assert(bus); |
| 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 < 0) |
| /* quietly ignore non-units paths */ |
| return r == -EINVAL ? 0 : r; |
| |
| session = hashmap_get(m->session_units, unit); |
| if (session) |
| session_add_to_gc_queue(session); |
| |
| user = hashmap_get(m->user_units, unit); |
| if (user) |
| user_add_to_gc_queue(user); |
| |
| return 0; |
| } |
| |
| int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| Session *session; |
| Iterator i; |
| int b, r; |
| |
| assert(bus); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return r; |
| } |
| |
| if (b) |
| return 0; |
| |
| /* systemd finished reloading, let's recheck all our sessions */ |
| log_debug("System manager has been reloaded, rechecking sessions..."); |
| |
| HASHMAP_FOREACH(session, m->sessions, i) |
| session_add_to_gc_queue(session); |
| |
| return 0; |
| } |
| |
| int match_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *name, *old, *new; |
| Manager *m = userdata; |
| Session *session; |
| Iterator i; |
| int r; |
| |
| |
| char *key; |
| |
| r = sd_bus_message_read(message, "sss", &name, &old, &new); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return r; |
| } |
| |
| if (isempty(old) || !isempty(new)) |
| return 0; |
| |
| key = set_remove(m->busnames, (char*) old); |
| if (!key) |
| return 0; |
| |
| /* Drop all controllers owned by this name */ |
| |
| free(key); |
| |
| HASHMAP_FOREACH(session, m->sessions, i) |
| if (session_is_controller(session, old)) |
| session_drop_controller(session); |
| |
| return 0; |
| } |
| |
| int manager_send_changed(Manager *manager, const char *property, ...) { |
| char **l; |
| |
| assert(manager); |
| |
| l = strv_from_stdarg_alloca(property); |
| |
| return sd_bus_emit_properties_changed_strv( |
| manager->bus, |
| "/org/freedesktop/login1", |
| "org.freedesktop.login1.Manager", |
| l); |
| } |
| |
| int manager_dispatch_delayed(Manager *manager) { |
| _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
| Inhibitor *offending = NULL; |
| int r; |
| |
| assert(manager); |
| |
| if (manager->action_what == 0 || manager->action_job) |
| return 0; |
| |
| /* Continue delay? */ |
| if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) { |
| _cleanup_free_ char *comm = NULL, *u = NULL; |
| |
| get_process_comm(offending->pid, &comm); |
| u = uid_to_name(offending->uid); |
| |
| if (manager->action_timestamp + manager->inhibit_delay_max > now(CLOCK_MONOTONIC)) |
| return 0; |
| |
| log_info("Delay lock is active (UID "UID_FMT"/%s, PID "PID_FMT"/%s) but inhibitor timeout is reached.", |
| offending->uid, strna(u), |
| offending->pid, strna(comm)); |
| } |
| |
| /* Actually do the operation */ |
| r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error); |
| if (r < 0) { |
| log_warning("Failed to send delayed message: %s", bus_error_message(&error, r)); |
| |
| manager->action_unit = NULL; |
| manager->action_what = 0; |
| return r; |
| } |
| |
| return 1; |
| } |
| |
| int manager_start_scope( |
| Manager *manager, |
| const char *scope, |
| pid_t pid, |
| const char *slice, |
| const char *description, |
| const char *after, const char *after2, |
| sd_bus_error *error, |
| char **job) { |
| |
| _cleanup_bus_message_unref_ 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; |
| } |
| |
| if (!isempty(after)) { |
| r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after); |
| if (r < 0) |
| return r; |
| } |
| |
| if (!isempty(after2)) { |
| r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2); |
| if (r < 0) |
| return r; |
| } |
| |
| /* cgroup empty notification is not available in containers |
| * currently. To make this less problematic, let's shorten the |
| * stop timeout for sessions, so that we don't wait |
| * forever. */ |
| |
| /* Make sure that the session shells are terminated with |
| * SIGHUP since bash and friends tend to ignore SIGTERM */ |
| r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_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_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { |
| _cleanup_bus_message_unref_ 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", |
| "StartUnit", |
| error, |
| &reply, |
| "ss", unit, "fail"); |
| 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_bus_message_unref_ 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_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) { |
| _cleanup_free_ char *path = NULL; |
| int r; |
| |
| assert(manager); |
| assert(scope); |
| |
| path = unit_dbus_path_from_name(scope); |
| if (!path) |
| return -ENOMEM; |
| |
| r = sd_bus_call_method( |
| manager->bus, |
| "org.freedesktop.systemd1", |
| path, |
| "org.freedesktop.systemd1.Scope", |
| "Abandon", |
| error, |
| NULL, |
| NULL); |
| if (r < 0) { |
| if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || |
| sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED) || |
| sd_bus_error_has_name(error, BUS_ERROR_SCOPE_NOT_RUNNING)) { |
| sd_bus_error_free(error); |
| return 0; |
| } |
| |
| return r; |
| } |
| |
| return 1; |
| } |
| |
| int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) { |
| assert(manager); |
| assert(unit); |
| |
| return sd_bus_call_method( |
| manager->bus, |
| "org.freedesktop.systemd1", |
| "/org/freedesktop/systemd1", |
| "org.freedesktop.systemd1.Manager", |
| "KillUnit", |
| error, |
| NULL, |
| "ssi", unit, who == KILL_LEADER ? "main" : "all", signo); |
| } |
| |
| int manager_unit_is_active(Manager *manager, const char *unit) { |
| _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
| _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
| _cleanup_free_ char *path = NULL; |
| const char *state; |
| int r; |
| |
| assert(manager); |
| assert(unit); |
| |
| path = unit_dbus_path_from_name(unit); |
| if (!path) |
| return -ENOMEM; |
| |
| r = sd_bus_get_property( |
| manager->bus, |
| "org.freedesktop.systemd1", |
| path, |
| "org.freedesktop.systemd1.Unit", |
| "ActiveState", |
| &error, |
| &reply, |
| "s"); |
| if (r < 0) { |
| /* systemd might have droppped off momentarily, let's |
| * not make this an error */ |
| if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || |
| sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) |
| return true; |
| |
| /* If the unit is already unloaded then it's not |
| * active */ |
| if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) || |
| sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED)) |
| return false; |
| |
| return r; |
| } |
| |
| r = sd_bus_message_read(reply, "s", &state); |
| if (r < 0) |
| return -EINVAL; |
| |
| return !streq(state, "inactive") && !streq(state, "failed"); |
| } |
| |
| int manager_job_is_active(Manager *manager, const char *path) { |
| _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
| _cleanup_bus_message_unref_ 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; |
| } |