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Diffstat (limited to 'src/login/logind-inhibit.c')
-rw-r--r--src/login/logind-inhibit.c482
1 files changed, 0 insertions, 482 deletions
diff --git a/src/login/logind-inhibit.c b/src/login/logind-inhibit.c
deleted file mode 100644
index c93b24009b..0000000000
--- a/src/login/logind-inhibit.c
+++ /dev/null
@@ -1,482 +0,0 @@
-/***
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "alloc-util.h"
-#include "escape.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "formats-util.h"
-#include "logind-inhibit.h"
-#include "mkdir.h"
-#include "parse-util.h"
-#include "string-table.h"
-#include "string-util.h"
-#include "user-util.h"
-#include "util.h"
-
-Inhibitor* inhibitor_new(Manager *m, const char* id) {
- Inhibitor *i;
-
- assert(m);
-
- i = new0(Inhibitor, 1);
- if (!i)
- return NULL;
-
- i->state_file = strappend("/run/systemd/inhibit/", id);
- if (!i->state_file)
- return mfree(i);
-
- i->id = basename(i->state_file);
-
- if (hashmap_put(m->inhibitors, i->id, i) < 0) {
- free(i->state_file);
- return mfree(i);
- }
-
- i->manager = m;
- i->fifo_fd = -1;
-
- return i;
-}
-
-void inhibitor_free(Inhibitor *i) {
- assert(i);
-
- hashmap_remove(i->manager->inhibitors, i->id);
-
- inhibitor_remove_fifo(i);
-
- free(i->who);
- free(i->why);
-
- if (i->state_file) {
- unlink(i->state_file);
- free(i->state_file);
- }
-
- free(i);
-}
-
-int inhibitor_save(Inhibitor *i) {
- _cleanup_free_ char *temp_path = NULL;
- _cleanup_fclose_ FILE *f = NULL;
- int r;
-
- assert(i);
-
- r = mkdir_safe_label("/run/systemd/inhibit", 0755, 0, 0);
- if (r < 0)
- goto fail;
-
- r = fopen_temporary(i->state_file, &f, &temp_path);
- if (r < 0)
- goto fail;
-
- fchmod(fileno(f), 0644);
-
- fprintf(f,
- "# This is private data. Do not parse.\n"
- "WHAT=%s\n"
- "MODE=%s\n"
- "UID="UID_FMT"\n"
- "PID="PID_FMT"\n",
- inhibit_what_to_string(i->what),
- inhibit_mode_to_string(i->mode),
- i->uid,
- i->pid);
-
- if (i->who) {
- _cleanup_free_ char *cc = NULL;
-
- cc = cescape(i->who);
- if (!cc) {
- r = -ENOMEM;
- goto fail;
- }
-
- fprintf(f, "WHO=%s\n", cc);
- }
-
- if (i->why) {
- _cleanup_free_ char *cc = NULL;
-
- cc = cescape(i->why);
- if (!cc) {
- r = -ENOMEM;
- goto fail;
- }
-
- fprintf(f, "WHY=%s\n", cc);
- }
-
- if (i->fifo_path)
- fprintf(f, "FIFO=%s\n", i->fifo_path);
-
- r = fflush_and_check(f);
- if (r < 0)
- goto fail;
-
- if (rename(temp_path, i->state_file) < 0) {
- r = -errno;
- goto fail;
- }
-
- return 0;
-
-fail:
- (void) unlink(i->state_file);
-
- if (temp_path)
- (void) unlink(temp_path);
-
- return log_error_errno(r, "Failed to save inhibit data %s: %m", i->state_file);
-}
-
-int inhibitor_start(Inhibitor *i) {
- assert(i);
-
- if (i->started)
- return 0;
-
- dual_timestamp_get(&i->since);
-
- log_debug("Inhibitor %s (%s) pid="PID_FMT" uid="UID_FMT" mode=%s started.",
- strna(i->who), strna(i->why),
- i->pid, i->uid,
- inhibit_mode_to_string(i->mode));
-
- inhibitor_save(i);
-
- i->started = true;
-
- manager_send_changed(i->manager, i->mode == INHIBIT_BLOCK ? "BlockInhibited" : "DelayInhibited", NULL);
-
- return 0;
-}
-
-int inhibitor_stop(Inhibitor *i) {
- assert(i);
-
- if (i->started)
- log_debug("Inhibitor %s (%s) pid="PID_FMT" uid="UID_FMT" mode=%s stopped.",
- strna(i->who), strna(i->why),
- i->pid, i->uid,
- inhibit_mode_to_string(i->mode));
-
- if (i->state_file)
- unlink(i->state_file);
-
- i->started = false;
-
- manager_send_changed(i->manager, i->mode == INHIBIT_BLOCK ? "BlockInhibited" : "DelayInhibited", NULL);
-
- return 0;
-}
-
-int inhibitor_load(Inhibitor *i) {
-
- _cleanup_free_ char
- *what = NULL,
- *uid = NULL,
- *pid = NULL,
- *who = NULL,
- *why = NULL,
- *mode = NULL;
-
- InhibitWhat w;
- InhibitMode mm;
- char *cc;
- int r;
-
- r = parse_env_file(i->state_file, NEWLINE,
- "WHAT", &what,
- "UID", &uid,
- "PID", &pid,
- "WHO", &who,
- "WHY", &why,
- "MODE", &mode,
- "FIFO", &i->fifo_path,
- NULL);
- if (r < 0)
- return r;
-
- w = what ? inhibit_what_from_string(what) : 0;
- if (w >= 0)
- i->what = w;
-
- mm = mode ? inhibit_mode_from_string(mode) : INHIBIT_BLOCK;
- if (mm >= 0)
- i->mode = mm;
-
- if (uid) {
- r = parse_uid(uid, &i->uid);
- if (r < 0)
- return r;
- }
-
- if (pid) {
- r = parse_pid(pid, &i->pid);
- if (r < 0)
- return r;
- }
-
- if (who) {
- r = cunescape(who, 0, &cc);
- if (r < 0)
- return r;
-
- free(i->who);
- i->who = cc;
- }
-
- if (why) {
- r = cunescape(why, 0, &cc);
- if (r < 0)
- return r;
-
- free(i->why);
- i->why = cc;
- }
-
- if (i->fifo_path) {
- int fd;
-
- fd = inhibitor_create_fifo(i);
- safe_close(fd);
- }
-
- return 0;
-}
-
-static int inhibitor_dispatch_fifo(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
- Inhibitor *i = userdata;
-
- assert(s);
- assert(fd == i->fifo_fd);
- assert(i);
-
- inhibitor_stop(i);
- inhibitor_free(i);
-
- return 0;
-}
-
-int inhibitor_create_fifo(Inhibitor *i) {
- int r;
-
- assert(i);
-
- /* Create FIFO */
- if (!i->fifo_path) {
- r = mkdir_safe_label("/run/systemd/inhibit", 0755, 0, 0);
- if (r < 0)
- return r;
-
- i->fifo_path = strjoin("/run/systemd/inhibit/", i->id, ".ref", NULL);
- if (!i->fifo_path)
- return -ENOMEM;
-
- if (mkfifo(i->fifo_path, 0600) < 0 && errno != EEXIST)
- return -errno;
- }
-
- /* Open reading side */
- if (i->fifo_fd < 0) {
- i->fifo_fd = open(i->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY);
- if (i->fifo_fd < 0)
- return -errno;
- }
-
- if (!i->event_source) {
- r = sd_event_add_io(i->manager->event, &i->event_source, i->fifo_fd, 0, inhibitor_dispatch_fifo, i);
- if (r < 0)
- return r;
-
- r = sd_event_source_set_priority(i->event_source, SD_EVENT_PRIORITY_IDLE-10);
- if (r < 0)
- return r;
- }
-
- /* Open writing side */
- r = open(i->fifo_path, O_WRONLY|O_CLOEXEC|O_NDELAY);
- if (r < 0)
- return -errno;
-
- return r;
-}
-
-void inhibitor_remove_fifo(Inhibitor *i) {
- assert(i);
-
- i->event_source = sd_event_source_unref(i->event_source);
- i->fifo_fd = safe_close(i->fifo_fd);
-
- if (i->fifo_path) {
- unlink(i->fifo_path);
- i->fifo_path = mfree(i->fifo_path);
- }
-}
-
-InhibitWhat manager_inhibit_what(Manager *m, InhibitMode mm) {
- Inhibitor *i;
- Iterator j;
- InhibitWhat what = 0;
-
- assert(m);
-
- HASHMAP_FOREACH(i, m->inhibitors, j)
- if (i->mode == mm)
- what |= i->what;
-
- return what;
-}
-
-static int pid_is_active(Manager *m, pid_t pid) {
- Session *s;
- int r;
-
- r = manager_get_session_by_pid(m, pid, &s);
- if (r < 0)
- return r;
-
- /* If there's no session assigned to it, then it's globally
- * active on all ttys */
- if (r == 0)
- return 1;
-
- return session_is_active(s);
-}
-
-bool manager_is_inhibited(
- Manager *m,
- InhibitWhat w,
- InhibitMode mm,
- dual_timestamp *since,
- bool ignore_inactive,
- bool ignore_uid,
- uid_t uid,
- Inhibitor **offending) {
-
- Inhibitor *i;
- Iterator j;
- struct dual_timestamp ts = DUAL_TIMESTAMP_NULL;
- bool inhibited = false;
-
- assert(m);
- assert(w > 0 && w < _INHIBIT_WHAT_MAX);
-
- HASHMAP_FOREACH(i, m->inhibitors, j) {
- if (!(i->what & w))
- continue;
-
- if (i->mode != mm)
- continue;
-
- if (ignore_inactive && pid_is_active(m, i->pid) <= 0)
- continue;
-
- if (ignore_uid && i->uid == uid)
- continue;
-
- if (!inhibited ||
- i->since.monotonic < ts.monotonic)
- ts = i->since;
-
- inhibited = true;
-
- if (offending)
- *offending = i;
- }
-
- if (since)
- *since = ts;
-
- return inhibited;
-}
-
-const char *inhibit_what_to_string(InhibitWhat w) {
- static thread_local char buffer[97];
- char *p;
-
- if (w < 0 || w >= _INHIBIT_WHAT_MAX)
- return NULL;
-
- p = buffer;
- if (w & INHIBIT_SHUTDOWN)
- p = stpcpy(p, "shutdown:");
- if (w & INHIBIT_SLEEP)
- p = stpcpy(p, "sleep:");
- if (w & INHIBIT_IDLE)
- p = stpcpy(p, "idle:");
- if (w & INHIBIT_HANDLE_POWER_KEY)
- p = stpcpy(p, "handle-power-key:");
- if (w & INHIBIT_HANDLE_SUSPEND_KEY)
- p = stpcpy(p, "handle-suspend-key:");
- if (w & INHIBIT_HANDLE_HIBERNATE_KEY)
- p = stpcpy(p, "handle-hibernate-key:");
- if (w & INHIBIT_HANDLE_LID_SWITCH)
- p = stpcpy(p, "handle-lid-switch:");
-
- if (p > buffer)
- *(p-1) = 0;
- else
- *p = 0;
-
- return buffer;
-}
-
-InhibitWhat inhibit_what_from_string(const char *s) {
- InhibitWhat what = 0;
- const char *word, *state;
- size_t l;
-
- FOREACH_WORD_SEPARATOR(word, l, s, ":", state) {
- if (l == 8 && strneq(word, "shutdown", l))
- what |= INHIBIT_SHUTDOWN;
- else if (l == 5 && strneq(word, "sleep", l))
- what |= INHIBIT_SLEEP;
- else if (l == 4 && strneq(word, "idle", l))
- what |= INHIBIT_IDLE;
- else if (l == 16 && strneq(word, "handle-power-key", l))
- what |= INHIBIT_HANDLE_POWER_KEY;
- else if (l == 18 && strneq(word, "handle-suspend-key", l))
- what |= INHIBIT_HANDLE_SUSPEND_KEY;
- else if (l == 20 && strneq(word, "handle-hibernate-key", l))
- what |= INHIBIT_HANDLE_HIBERNATE_KEY;
- else if (l == 17 && strneq(word, "handle-lid-switch", l))
- what |= INHIBIT_HANDLE_LID_SWITCH;
- else
- return _INHIBIT_WHAT_INVALID;
- }
-
- return what;
-}
-
-static const char* const inhibit_mode_table[_INHIBIT_MODE_MAX] = {
- [INHIBIT_BLOCK] = "block",
- [INHIBIT_DELAY] = "delay"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(inhibit_mode, InhibitMode);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 12:58:34 +0000