74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek#include <errno.h>

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek#include <string.h>

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek#include <sys/mount.h>

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek#include <unistd.h>

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "alloc-util.h"

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek#include "bus-common-errors.h"

7263f72499e962b3fd54cdb7c79d49ca72121edeZbigniew Jędrzejewski-Szmek#include "bus-error.h"

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "bus-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "clean-ipc.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "conf-parser.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "escape.h"

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include "fd-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "fileio.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "formats-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "fs-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "hashmap.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "label.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "logind-user.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "mkdir.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "mount-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "parse-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "path-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "rm-rf.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "smack-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "special.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "stdio-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "string-table.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "unit-name.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "user-util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering#include "util.h"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart PoetteringUser* user_new(Manager *m, uid_t uid, gid_t gid, const char *name) {

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering User *u;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering assert(m);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering assert(name);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering u = new0(User, 1);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (!u)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering return NULL;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering u->name = strdup(name);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (!u->name)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering goto fail;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (asprintf(&u->state_file, "/run/systemd/users/"UID_FMT, uid) < 0)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering goto fail;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (hashmap_put(m->users, UID_TO_PTR(uid), u) < 0)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering goto fail;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering u->manager = m;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering u->uid = uid;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering u->gid = gid;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering return u;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poetteringfail:

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->state_file);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->name);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering return NULL;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering}

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poetteringvoid user_free(User *u) {

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering assert(u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (u->in_gc_queue)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering LIST_REMOVE(gc_queue, u->manager->user_gc_queue, u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering while (u->sessions)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering session_free(u->sessions);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (u->slice) {

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering hashmap_remove(u->manager->user_units, u->slice);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->slice);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering }

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (u->service) {

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering hashmap_remove(u->manager->user_units, u->service);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->service);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering }

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->slice_job);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->service_job);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->runtime_path);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering hashmap_remove(u->manager->users, UID_TO_PTR(u->uid));

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->name);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u->state_file);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering free(u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering}

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poetteringstatic int user_save_internal(User *u) {

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering _cleanup_free_ char *temp_path = NULL;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering _cleanup_fclose_ FILE *f = NULL;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering int r;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering assert(u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering assert(u->state_file);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering r = mkdir_safe_label("/run/systemd/users", 0755, 0, 0);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (r < 0)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering goto fail;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering r = fopen_temporary(u->state_file, &f, &temp_path);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (r < 0)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering goto fail;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fchmod(fileno(f), 0644);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "# This is private data. Do not parse.\n"

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "NAME=%s\n"

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering "STATE=%s\n",

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering u->name,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering user_state_to_string(user_get_state(u)));

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->runtime_path)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f, "RUNTIME=%s\n", u->runtime_path);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->service)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f, "SERVICE=%s\n", u->service);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->service_job)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f, "SERVICE_JOB=%s\n", u->service_job);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->slice)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f, "SLICE=%s\n", u->slice);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->slice_job)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f, "SLICE_JOB=%s\n", u->slice_job);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->display)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f, "DISPLAY=%s\n", u->display->id);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (dual_timestamp_is_set(&u->timestamp))

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering fprintf(f,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "REALTIME="USEC_FMT"\n"

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "MONOTONIC="USEC_FMT"\n",

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering u->timestamp.realtime,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering u->timestamp.monotonic);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->sessions) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering Session *i;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering bool first;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering fputs("SESSIONS=", f);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering first = true;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering LIST_FOREACH(sessions_by_user, i, u->sessions) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (first)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering first = false;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering else

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering fputc(' ', f);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering fputs(i->id, f);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering fputs("\nSEATS=", f);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering first = true;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering LIST_FOREACH(sessions_by_user, i, u->sessions) {

23432a1c249b9c513e438bffe9778a7ce2ee74feZbigniew Jędrzejewski-Szmek if (!i->seat)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering continue;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (first)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering first = false;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering else

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering fputc(' ', f);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputs(i->seat->id, f);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering }

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputs("\nACTIVE_SESSIONS=", f);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering first = true;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_FOREACH(sessions_by_user, i, u->sessions) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!session_is_active(i))

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering continue;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (first)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering first = false;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering else

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering fputc(' ', f);

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering fputs(i->id, f);

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering }

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering fputs("\nONLINE_SESSIONS=", f);

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering first = true;

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering LIST_FOREACH(sessions_by_user, i, u->sessions) {

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering if (session_get_state(i) == SESSION_CLOSING)

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering continue;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (first)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering first = false;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering else

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputc(' ', f);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputs(i->id, f);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering }

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputs("\nACTIVE_SEATS=", f);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering first = true;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering LIST_FOREACH(sessions_by_user, i, u->sessions) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!session_is_active(i) || !i->seat)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering continue;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (first)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering first = false;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering else

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputc(' ', f);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering fputs(i->seat->id, f);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering }

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering fputs("\nONLINE_SEATS=", f);

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering first = true;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering LIST_FOREACH(sessions_by_user, i, u->sessions) {

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering if (session_get_state(i) == SESSION_CLOSING || !i->seat)

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering continue;

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek if (first)

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek first = false;

8ac4e9e1e54397f6d1745c2a7a806132418c7da2Lennart Poettering else

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering fputc(' ', f);

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering fputs(i->seat->id, f);

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek }

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering fputc('\n', f);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering }

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering r = fflush_and_check(f);

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek if (r < 0)

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering goto fail;

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek if (rename(temp_path, u->state_file) < 0) {

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering r = -errno;

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek goto fail;

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering }

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek return 0;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmekfail:

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek (void) unlink(u->state_file);

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering if (temp_path)

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering (void) unlink(temp_path);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering return log_error_errno(r, "Failed to save user data %s: %m", u->state_file);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering}

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmekint user_save(User *u) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek assert(u);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek if (!u->started)

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek return 0;

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek return user_save_internal (u);

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering}

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poetteringint user_load(User *u) {

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek _cleanup_free_ char *display = NULL, *realtime = NULL, *monotonic = NULL;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering Session *s = NULL;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering int r;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering assert(u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering r = parse_env_file(u->state_file, NEWLINE,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "RUNTIME", &u->runtime_path,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "SERVICE", &u->service,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering "SERVICE_JOB", &u->service_job,

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering "SLICE", &u->slice,

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering "SLICE_JOB", &u->slice_job,

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering "DISPLAY", &display,

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering "REALTIME", &realtime,

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering "MONOTONIC", &monotonic,

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering NULL);

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (r < 0) {

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (r == -ENOENT)

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering return 0;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering log_error_errno(r, "Failed to read %s: %m", u->state_file);

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering return r;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering }

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (display)

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering s = hashmap_get(u->manager->sessions, display);

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (s && s->display && display_is_local(s->display))

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering u->display = s;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (realtime) {

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering unsigned long long l;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (sscanf(realtime, "%llu", &l) > 0)

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering u->timestamp.realtime = l;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering }

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (monotonic) {

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering unsigned long long l;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering if (sscanf(monotonic, "%llu", &l) > 0)

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering u->timestamp.monotonic = l;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering }

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering return r;

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering}

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poetteringstatic int user_mkdir_runtime_path(User *u) {

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering char *p;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering int r;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering assert(u);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering r = mkdir_safe_label("/run/user", 0755, 0, 0);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (r < 0)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering return log_error_errno(r, "Failed to create /run/user: %m");

fd0b4602f6332c3f1660eb208c8f5c719709a009Lennart Poettering

fd0b4602f6332c3f1660eb208c8f5c719709a009Lennart Poettering if (!u->runtime_path) {

fd0b4602f6332c3f1660eb208c8f5c719709a009Lennart Poettering if (asprintf(&p, "/run/user/" UID_FMT, u->uid) < 0)

fd0b4602f6332c3f1660eb208c8f5c719709a009Lennart Poettering return log_oom();

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering } else

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering p = u->runtime_path;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering if (path_is_mount_point(p, 0) <= 0) {

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering _cleanup_free_ char *t = NULL;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering (void) mkdir_label(p, 0700);

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering if (mac_smack_use())

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering r = asprintf(&t, "mode=0700,smackfsroot=*,uid=" UID_FMT ",gid=" GID_FMT ",size=%zu", u->uid, u->gid, u->manager->runtime_dir_size);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering else

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = asprintf(&t, "mode=0700,uid=" UID_FMT ",gid=" GID_FMT ",size=%zu", u->uid, u->gid, u->manager->runtime_dir_size);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0) {

8ac4e9e1e54397f6d1745c2a7a806132418c7da2Lennart Poettering r = log_oom();

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering goto fail;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = mount("tmpfs", p, "tmpfs", MS_NODEV|MS_NOSUID, t);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (errno != EPERM) {

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek r = log_error_errno(errno, "Failed to mount per-user tmpfs directory %s: %m", p);

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek goto fail;

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek }

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek /* Lacking permissions, maybe

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek r = chmod_and_chown(p, 0700, u->uid, u->gid);

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek if (r < 0) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering log_error_errno(r, "Failed to change runtime directory ownership and mode: %m");

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering goto fail;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = label_fix(p, false, false);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0)

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering log_warning_errno(r, "Failed to fix label of '%s', ignoring: %m", p);

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering }

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering u->runtime_path = p;

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering return 0;

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poetteringfail:

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering if (p) {

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering /* Try to clean up, but ignore errors */

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering (void) rmdir(p);

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering free(p);

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering }

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek u->runtime_path = NULL;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek return r;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek}

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmekstatic int user_start_slice(User *u) {

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek int r;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek assert(u);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek if (!u->slice) {

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek char lu[DECIMAL_STR_MAX(uid_t) + 1], *slice, *job;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek const char *description;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek u->slice_job = mfree(u->slice_job);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering xsprintf(lu, UID_FMT, u->uid);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering r = slice_build_subslice(SPECIAL_USER_SLICE, lu, &slice);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering if (r < 0)

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering return log_error_errno(r, "Failed to build slice name: %m");

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering description = strjoina("User Slice of ", u->name);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek r = manager_start_slice(

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek u->manager,

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek slice,

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek description,

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek "systemd-logind.service",

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek "systemd-user-sessions.service",

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering u->manager->user_tasks_max,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering &error,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering &job);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0) {

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (sd_bus_error_has_name(&error, BUS_ERROR_UNIT_EXISTS))

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek /* The slice already exists? If so, that's fine, let's just reuse it */

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek u->slice = slice;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek else {

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to start user slice %s, ignoring: %s (%s)", slice, bus_error_message(&error, r), error.name);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek free(slice);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek /* we don't fail due to this, let's try to continue */

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek }

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek } else {

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek u->slice = slice;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek u->slice_job = job;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek }

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek }

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek if (u->slice)

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek (void) hashmap_put(u->manager->user_units, u->slice, u);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek return 0;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek}

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmekstatic int user_start_service(User *u) {

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek char *job;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek int r;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek assert(u);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek if (!u->service) {

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek char lu[DECIMAL_STR_MAX(uid_t) + 1], *service;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek xsprintf(lu, UID_FMT, u->uid);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek r = unit_name_build("user", lu, ".service", &service);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0)

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek return log_error_errno(r, "Failed to build service name: %m");

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = manager_start_unit(

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering u->manager,

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering service,

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering &error,

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering &job);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering log_error_errno(r, "Failed to start user service, ignoring: %s", bus_error_message(&error, r));

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering free(service);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek /* we don't fail due to this, let's try to continue */

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering } else {

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering u->service = service;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering free(u->service_job);

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering u->service_job = job;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering }

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering }

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering if (u->service)

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering (void) hashmap_put(u->manager->user_units, u->service, u);

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering return 0;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering}

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poetteringint user_start(User *u) {

8ac4e9e1e54397f6d1745c2a7a806132418c7da2Lennart Poettering int r;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering assert(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (u->started)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering return 0;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering log_debug("New user %s logged in.", u->name);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering /* Make XDG_RUNTIME_DIR */

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = user_mkdir_runtime_path(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering return r;

9de3e3294065e8697ff10130b53f274319cdcf6fZbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek /* Create cgroup */

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek r = user_start_slice(u);

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek if (r < 0)

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek return r;

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek /* Save the user data so far, because pam_systemd will read the

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek user_save_internal(u);

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering /* Spawn user systemd */

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = user_start_service(u);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering if (r < 0)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering return r;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (!dual_timestamp_is_set(&u->timestamp))

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering dual_timestamp_get(&u->timestamp);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering u->started = true;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering /* Save new user data */

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering user_save(u);

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek user_send_signal(u, true);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering return 0;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering}

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmekstatic int user_stop_slice(User *u) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering char *job;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering int r;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering assert(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (!u->slice)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering return 0;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = manager_stop_unit(u->manager, u->slice, &error, &job);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (r < 0) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering log_error("Failed to stop user slice: %s", bus_error_message(&error, r));

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering return r;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering free(u->slice_job);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering u->slice_job = job;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek return r;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek}

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmekstatic int user_stop_service(User *u) {

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek char *job;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek int r;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek assert(u);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek if (!u->service)

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek return 0;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek r = manager_stop_unit(u->manager, u->service, &error, &job);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek if (r < 0) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek log_error("Failed to stop user service: %s", bus_error_message(&error, r));

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek return r;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek }

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek free(u->service_job);

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek u->service_job = job;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek return r;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek}

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmekstatic int user_remove_runtime_path(User *u) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek int r;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek assert(u);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering if (!u->runtime_path)

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering return 0;

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering r = rm_rf(u->runtime_path, 0);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering if (r < 0)

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to remove runtime directory %s: %m", u->runtime_path);

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering /* Ignore cases where the directory isn't mounted, as that's

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek r = umount2(u->runtime_path, MNT_DETACH);

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek if (r < 0 && errno != EINVAL && errno != ENOENT)

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek log_error_errno(errno, "Failed to unmount user runtime directory %s: %m", u->runtime_path);

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek r = rm_rf(u->runtime_path, REMOVE_ROOT);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek if (r < 0)

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek log_error_errno(r, "Failed to remove runtime directory %s: %m", u->runtime_path);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering u->runtime_path = mfree(u->runtime_path);

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek return r;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek}

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmekint user_stop(User *u, bool force) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek Session *s;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek int r = 0, k;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering assert(u);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

ff3d6560bead6879a2fed1bf99bfe8273b3723f1Zbigniew Jędrzejewski-Szmek /* Stop jobs have already been queued */

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (u->stopping) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek user_save(u);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek return r;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek }

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek LIST_FOREACH(sessions_by_user, s, u->sessions) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek k = session_stop(s, force);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (k < 0)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = k;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering /* Kill systemd */

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering k = user_stop_service(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (k < 0)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering r = k;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering /* Kill cgroup */

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering k = user_stop_slice(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (k < 0)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering r = k;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering u->stopping = true;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering user_save(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering return r;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering}

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poetteringint user_finalize(User *u) {

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering Session *s;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering int r = 0, k;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering assert(u);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (u->started)

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering log_debug("User %s logged out.", u->name);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering LIST_FOREACH(sessions_by_user, s, u->sessions) {

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering k = session_finalize(s);

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (k < 0)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering r = k;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering }

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering

/* Kill XDG_RUNTIME_DIR */

k = user_remove_runtime_path(u);

if (k < 0)

r = k;

/* Clean SysV + POSIX IPC objects */

if (u->manager->remove_ipc) {

k = clean_ipc(u->uid);

if (k < 0)

r = k;

}

unlink(u->state_file);

user_add_to_gc_queue(u);

if (u->started) {

user_send_signal(u, false);

u->started = false;

}

return r;

}

int user_get_idle_hint(User *u, dual_timestamp *t) {

Session *s;

bool idle_hint = true;

dual_timestamp ts = DUAL_TIMESTAMP_NULL;

assert(u);

LIST_FOREACH(sessions_by_user, s, u->sessions) {

dual_timestamp k;

int ih;

ih = session_get_idle_hint(s, &k);

if (ih < 0)

return ih;

if (!ih) {

if (!idle_hint) {

if (k.monotonic < ts.monotonic)

ts = k;

} else {

idle_hint = false;

ts = k;

}

} else if (idle_hint) {

if (k.monotonic > ts.monotonic)

ts = k;

}

}

if (t)

*t = ts;

return idle_hint;

}

int user_check_linger_file(User *u) {

_cleanup_free_ char *cc = NULL;

char *p = NULL;

cc = cescape(u->name);

if (!cc)

return -ENOMEM;

p = strjoina("/var/lib/systemd/linger/", cc);

return access(p, F_OK) >= 0;

}

bool user_check_gc(User *u, bool drop_not_started) {

assert(u);

if (drop_not_started && !u->started)

return false;

if (u->sessions)

return true;

if (user_check_linger_file(u) > 0)

return true;

if (u->slice_job && manager_job_is_active(u->manager, u->slice_job))

return true;

if (u->service_job && manager_job_is_active(u->manager, u->service_job))

return true;

return false;

}

void user_add_to_gc_queue(User *u) {

assert(u);

if (u->in_gc_queue)

return;

LIST_PREPEND(gc_queue, u->manager->user_gc_queue, u);

u->in_gc_queue = true;

}

UserState user_get_state(User *u) {

Session *i;

assert(u);

if (u->stopping)

return USER_CLOSING;

if (!u->started || u->slice_job || u->service_job)

return USER_OPENING;

if (u->sessions) {

bool all_closing = true;

LIST_FOREACH(sessions_by_user, i, u->sessions) {

SessionState state;

state = session_get_state(i);

if (state == SESSION_ACTIVE)

return USER_ACTIVE;

if (state != SESSION_CLOSING)

all_closing = false;

}

return all_closing ? USER_CLOSING : USER_ONLINE;

}

if (user_check_linger_file(u) > 0)

return USER_LINGERING;

return USER_CLOSING;

}

int user_kill(User *u, int signo) {

assert(u);

if (!u->slice)

return -ESRCH;

return manager_kill_unit(u->manager, u->slice, KILL_ALL, signo, NULL);

}

static bool elect_display_filter(Session *s) {

/* Return true if the session is a candidate for the user’s ‘primary

assert(s);

return (s->class == SESSION_USER && !s->stopping);

}

static int elect_display_compare(Session *s1, Session *s2) {

/* Indexed by SessionType. Lower numbers mean more preferred. */

const int type_ranks[_SESSION_TYPE_MAX] = {

[SESSION_UNSPECIFIED] = 0,

[SESSION_TTY] = -2,

[SESSION_X11] = -3,

[SESSION_WAYLAND] = -3,

[SESSION_MIR] = -3,

[SESSION_WEB] = -1,

};

/* Calculate the partial order relationship between s1 and s2,

if (!s1 && !s2)

return 0;

if ((s1 == NULL) != (s2 == NULL))

return (s1 == NULL) - (s2 == NULL);

if (s1->stopping != s2->stopping)

return s1->stopping - s2->stopping;

if ((s1->class != SESSION_USER) != (s2->class != SESSION_USER))

return (s1->class != SESSION_USER) - (s2->class != SESSION_USER);

if ((s1->type == _SESSION_TYPE_INVALID) != (s2->type == _SESSION_TYPE_INVALID))

return (s1->type == _SESSION_TYPE_INVALID) - (s2->type == _SESSION_TYPE_INVALID);

if (s1->type != s2->type)

return type_ranks[s1->type] - type_ranks[s2->type];

return 0;

}

void user_elect_display(User *u) {

Session *s;

assert(u);

/* This elects a primary session for each user, which we call

log_debug("Electing new display for user %s", u->name);

LIST_FOREACH(sessions_by_user, s, u->sessions) {

if (!elect_display_filter(s)) {

log_debug("Ignoring session %s", s->id);

continue;

}

if (elect_display_compare(s, u->display) < 0) {

log_debug("Choosing session %s in preference to %s", s->id, u->display ? u->display->id : "-");

u->display = s;

}

}

}

static const char* const user_state_table[_USER_STATE_MAX] = {

[USER_OFFLINE] = "offline",

[USER_OPENING] = "opening",

[USER_LINGERING] = "lingering",

[USER_ONLINE] = "online",

[USER_ACTIVE] = "active",

[USER_CLOSING] = "closing"

};

DEFINE_STRING_TABLE_LOOKUP(user_state, UserState);

int config_parse_tmpfs_size(

const char* unit,

const char *filename,

unsigned line,

const char *section,

unsigned section_line,

const char *lvalue,

int ltype,

const char *rvalue,

void *data,

void *userdata) {

size_t *sz = data;

const char *e;

int r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

e = endswith(rvalue, "%");

if (e) {

unsigned long ul;

char *f;

errno = 0;

ul = strtoul(rvalue, &f, 10);

if (errno != 0 || f != e) {

log_syntax(unit, LOG_ERR, filename, line, errno, "Failed to parse percentage value, ignoring: %s", rvalue);

return 0;

}

if (ul <= 0 || ul >= 100) {

log_syntax(unit, LOG_ERR, filename, line, 0, "Percentage value out of range, ignoring: %s", rvalue);

return 0;

}

*sz = PAGE_ALIGN((size_t) ((physical_memory() * (uint64_t) ul) / (uint64_t) 100));

} else {

uint64_t k;

r = parse_size(rvalue, 1024, &k);

if (r < 0 || (uint64_t) (size_t) k != k) {

log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);

return 0;

}

*sz = PAGE_ALIGN((size_t) k);

}

return 0;

}