src/login/logind-user.c

	logind-user.c revision 6baa7db00812437bbc87e73faa1a11b6cf631958
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering/***
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  This file is part of systemd.
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  Copyright 2011 Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  under the terms of the GNU Lesser General Public License as published by
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  (at your option) any later version.
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  systemd is distributed in the hope that it will be useful, but
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  Lesser General Public License for more details.
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  You should have received a copy of the GNU Lesser General Public License
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
4871690d9e32608bbd9b18505b5326c2079c9690Allin Cottrell***/
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <sys/mount.h>
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include <string.h>
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <unistd.h>
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <errno.h>
b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering
3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering#include "util.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "mkdir.h"
afc5dbf37fd2399d37976388d9dd9ab470ecf446Lennart Poettering#include "hashmap.h"
3b7124a8db56ed57525b9ecfd19cfdc8c9facba0Lennart Poettering#include "strv.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "fileio.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "path-util.h"
3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering#include "special.h"
40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen#include "unit-name.h"
0b452006de98294d1690f045f6ea2f7f6630ec3bRonny Chevalier#include "bus-util.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "bus-error.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "conf-parser.h"
15a5e95075a7f6007dd97b2a165c8ed16fe683dfLennart Poettering#include "clean-ipc.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "logind-user.h"
7ccbd1ae843d77275f2c542582a9a80e5e058a70Lennart Poettering#include "smack-util.h"
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart PoetteringUser* user_new(Manager *m, uid_t uid, gid_t gid, const char *name) {
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        User *u;
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering        assert(m);
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        assert(name);
46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        u = new0(User, 1);
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        if (!u)
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek                return NULL;
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        u->name = strdup(name);
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        if (!u->name)
46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering                goto fail;
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek
f8294e4175918117ca6c131720bcf287eadcd029Josh Triplett        if (asprintf(&u->state_file, "/run/systemd/users/"UID_FMT, uid) < 0)
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek                goto fail;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (hashmap_put(m->users, ULONG_TO_PTR((unsigned long) uid), u) < 0)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                goto fail;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        u->manager = m;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        u->uid = uid;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        u->gid = gid;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        return u;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringfail:
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u->state_file);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u->name);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        return NULL;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringvoid user_free(User *u) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        assert(u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->in_gc_queue)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_REMOVE(gc_queue, u->manager->user_gc_queue, u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        while (u->sessions)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                session_free(u->sessions);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->slice) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                hashmap_remove(u->manager->user_units, u->slice);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                free(u->slice);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        if (u->service) {
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering                hashmap_remove(u->manager->user_units, u->service);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                free(u->service);
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler        free(u->slice_job);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u->service_job);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u->runtime_path);
ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler
ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler        hashmap_remove(u->manager->users, ULONG_TO_PTR((unsigned long) u->uid));
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u->name);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u->state_file);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringint user_save(User *u) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        _cleanup_free_ char *temp_path = NULL;
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        _cleanup_fclose_ FILE *f = NULL;
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        int r;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        assert(u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        assert(u->state_file);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (!u->started)
56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt                return 0;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        r = mkdir_safe_label("/run/systemd/users", 0755, 0, 0);
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering        if (r < 0)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                goto finish;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        r = fopen_temporary(u->state_file, &f, &temp_path);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (r < 0)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                goto finish;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        fchmod(fileno(f), 0644);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        fprintf(f,
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                "# This is private data. Do not parse.\n"
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                "NAME=%s\n"
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                "STATE=%s\n",
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering                u->name,
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                user_state_to_string(user_get_state(u)));
3b97fcbd28f92a1e51887fef5de8844a89bde523Lennart Poettering
5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek        if (u->runtime_path)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f, "RUNTIME=%s\n", u->runtime_path);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->service)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f, "SERVICE=%s\n", u->service);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->service_job)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f, "SERVICE_JOB=%s\n", u->service_job);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->slice)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f, "SLICE=%s\n", u->slice);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->slice_job)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f, "SLICE_JOB=%s\n", u->slice_job);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->display)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f, "DISPLAY=%s\n", u->display->id);
5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (dual_timestamp_is_set(&u->timestamp))
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fprintf(f,
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        "REALTIME="USEC_FMT"\n"
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        "MONOTONIC="USEC_FMT"\n",
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        u->timestamp.realtime,
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        u->timestamp.monotonic);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                Session *i;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                bool first;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fputs("SESSIONS=", f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                first = true;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_FOREACH(sessions_by_user, i, u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (first)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                first = false;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        else
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                fputc(' ', f);
5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        fputs(i->id, f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fputs("\nSEATS=", f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                first = true;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_FOREACH(sessions_by_user, i, u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (!i->seat)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                continue;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (first)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                first = false;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        else
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                fputc(' ', f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        fputs(i->seat->id, f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fputs("\nACTIVE_SESSIONS=", f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                first = true;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_FOREACH(sessions_by_user, i, u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (!session_is_active(i))
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                continue;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (first)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                first = false;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        else
e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek                                fputc(' ', f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        fputs(i->id, f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fputs("\nONLINE_SESSIONS=", f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                first = true;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_FOREACH(sessions_by_user, i, u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (session_get_state(i) == SESSION_CLOSING)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                continue;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (first)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                first = false;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        else
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                fputc(' ', f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek                        fputs(i->id, f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fputs("\nACTIVE_SEATS=", f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                first = true;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_FOREACH(sessions_by_user, i, u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (!session_is_active(i) || !i->seat)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                continue;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (first)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                first = false;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        else
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                fputc(' ', f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        fputs(i->seat->id, f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                fputs("\nONLINE_SEATS=", f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                first = true;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                LIST_FOREACH(sessions_by_user, i, u->sessions) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (session_get_state(i) == SESSION_CLOSING || !i->seat)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                continue;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        if (first)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                first = false;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        else
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                                fputc(' ', f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        fputs(i->seat->id, f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
ec5ff4445cca6a1d786b8da36cf6fe0acc0b94c8Filipe Brandenburger                fputc('\n', f);
ec5ff4445cca6a1d786b8da36cf6fe0acc0b94c8Filipe Brandenburger        }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek        fflush(f);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (ferror(f) || rename(temp_path, u->state_file) < 0) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                r = -errno;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                unlink(u->state_file);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                unlink(temp_path);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        }
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poetteringfinish:
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (r < 0)
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                log_error("Failed to save user data %s: %s", u->state_file, strerror(-r));
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        return r;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering}
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poetteringint user_load(User *u) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        _cleanup_free_ char *display = NULL, *realtime = NULL, *monotonic = NULL;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        Session *s = NULL;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        int r;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        assert(u);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        r = parse_env_file(u->state_file, NEWLINE,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "RUNTIME",     &u->runtime_path,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "SERVICE",     &u->service,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "SERVICE_JOB", &u->service_job,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "SLICE",       &u->slice,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "SLICE_JOB",   &u->slice_job,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "DISPLAY",     &display,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "REALTIME",    &realtime,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           "MONOTONIC",   &monotonic,
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                           NULL);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (r < 0) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                if (r == -ENOENT)
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                        return 0;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                log_error("Failed to read %s: %s", u->state_file, strerror(-r));
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                return r;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        }
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (display)
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                s = hashmap_get(u->manager->sessions, display);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (s && s->display && display_is_local(s->display))
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                u->display = s;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (realtime) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                unsigned long long l;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                if (sscanf(realtime, "%llu", &l) > 0)
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                        u->timestamp.realtime = l;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        }
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (monotonic) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                unsigned long long l;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                if (sscanf(monotonic, "%llu", &l) > 0)
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                        u->timestamp.monotonic = l;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        }
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        return r;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering}
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poetteringstatic int user_mkdir_runtime_path(User *u) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        char *p;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        int r;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        assert(u);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        r = mkdir_safe_label("/run/user", 0755, 0, 0);
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        if (r < 0) {
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                log_error("Failed to create /run/user: %s", strerror(-r));
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering                return r;
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering        }
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (!u->runtime_path) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                if (asprintf(&p, "/run/user/" UID_FMT, u->uid) < 0)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        return log_oom();
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering        } else
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering                p = u->runtime_path;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (path_is_mount_point(p, false) <= 0) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                _cleanup_free_ char *t = NULL;
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering
13f5402c6b734ed4c2b3e8b7c3d3bf6d815e7661Aleksander Adamowski                mkdir(p, 0700);
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                if (mac_smack_use())
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        r = asprintf(&t, "mode=0700,smackfsroot=*,uid=" UID_FMT ",gid=" GID_FMT ",size=%zu", u->uid, u->gid, u->manager->runtime_dir_size);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                else
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering                        r = asprintf(&t, "mode=0700,uid=" UID_FMT ",gid=" GID_FMT ",size=%zu", u->uid, u->gid, u->manager->runtime_dir_size);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                if (r < 0) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        r = log_oom();
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        goto fail;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek                r = mount("tmpfs", p, "tmpfs", MS_NODEV|MS_NOSUID, t);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                if (r < 0) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        log_error("Failed to mount per-user tmpfs directory %s: %s", p, strerror(-r));
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        goto fail;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        }
5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        u->runtime_path = p;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        return 0;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringfail:
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        free(p);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        u->runtime_path = NULL;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        return r;
40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen}
40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen
40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensenstatic int user_start_slice(User *u) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        char *job;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        int r;
d054f0a4d451120c26494263fc4dc175bfd405b1Daniel Mack
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering        assert(u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering        if (!u->slice) {
d054f0a4d451120c26494263fc4dc175bfd405b1Daniel Mack                _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering                char lu[DECIMAL_STR_MAX(uid_t) + 1], *slice;
8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering                sprintf(lu, UID_FMT, u->uid);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                r = build_subslice(SPECIAL_USER_SLICE, lu, &slice);
63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering                if (r < 0)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        return r;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                r = manager_start_unit(u->manager, slice, &error, &job);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                if (r < 0) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        log_error("Failed to start user slice: %s", bus_error_message(&error, r));
63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering                        free(slice);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                } else {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        u->slice = slice;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        free(u->slice_job);
63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering                        u->slice_job = job;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek        if (u->slice)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                hashmap_put(u->manager->user_units, u->slice, u);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        return 0;
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering}
3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int user_start_service(User *u) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        char *job;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        int r;
46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        assert(u);
03ee5c38cb0da193dd08733fb4c0c2809cee6a99Lennart Poettering
b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek        if (!u->service) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                char lu[DECIMAL_STR_MAX(uid_t) + 1], *service;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                sprintf(lu, UID_FMT, u->uid);
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt                service = unit_name_build("user", lu, ".service");
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                if (!service)
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        return log_oom();
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                r = manager_start_unit(u->manager, service, &error, &job);
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt                if (r < 0) {
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt                        log_error("Failed to start user service: %s", bus_error_message(&error, r));
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        free(service);
4a61c3e51e96a747c30598d78ee3a24e7c569e9fZbigniew Jędrzejewski-Szmek                } else {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        u->service = service;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        free(u->service_job);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering                        u->service_job = job;
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt                }
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt        }
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->service)
6355e75610a8d47fc3ba5ab8bd442172a2cfe574Lennart Poettering                hashmap_put(u->manager->user_units, u->service, u);
d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering
d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering        return 0;
56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt}
d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringint user_start(User *u) {
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        int r;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt        assert(u);
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        if (u->started)
8531ae707d4d0203e83304d4af948b8169a5fce1Lennart Poettering                return 0;
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt
23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt        log_debug("New user %s logged in.", u->name);
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo        /* Make XDG_RUNTIME_DIR */
48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo        r = user_mkdir_runtime_path(u);
48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo        if (r < 0)
48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo                return r;
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering
35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering        /* Create cgroup */
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        r = user_start_slice(u);
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        if (r < 0)
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering                return r;
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        /* Spawn user systemd */
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        r = user_start_service(u);
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        if (r < 0)
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering                return r;
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        if (!dual_timestamp_is_set(&u->timestamp))
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering                dual_timestamp_get(&u->timestamp);
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering
8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek        u->started = true;
8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek
8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek        /* Save new user data */
8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek        user_save(u);
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        user_send_signal(u, true);
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering
178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering        return 0;
}

static int user_stop_slice(User *u) {
        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
        char *job;
        int r;

        assert(u);

        if (!u->slice)
                return 0;

        r = manager_stop_unit(u->manager, u->slice, &error, &job);
        if (r < 0) {
                log_error("Failed to stop user slice: %s", bus_error_message(&error, r));
                return r;
        }

        free(u->slice_job);
        u->slice_job = job;

        return r;
}

static int user_stop_service(User *u) {
        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
        char *job;
        int r;

        assert(u);

        if (!u->service)
                return 0;

        r = manager_stop_unit(u->manager, u->service, &error, &job);
        if (r < 0) {
                log_error("Failed to stop user service: %s", bus_error_message(&error, r));
                return r;
        }

        free(u->service_job);
        u->service_job = job;

        return r;
}

static int user_remove_runtime_path(User *u) {
        int r;

        assert(u);

        if (!u->runtime_path)
                return 0;

        r = rm_rf(u->runtime_path, false, false, false);
        if (r < 0)
                log_error("Failed to remove runtime directory %s: %s", u->runtime_path, strerror(-r));

        if (umount2(u->runtime_path, MNT_DETACH) < 0)
                log_error("Failed to unmount user runtime directory %s: %m", u->runtime_path);

        r = rm_rf(u->runtime_path, false, true, false);
        if (r < 0)
                log_error("Failed to remove runtime directory %s: %s", u->runtime_path, strerror(-r));

        free(u->runtime_path);
        u->runtime_path = NULL;

        return r;
}

int user_stop(User *u, bool force) {
        Session *s;
        int r = 0, k;
        assert(u);

        /* Stop jobs have already been queued */
        if (u->stopping) {
                user_save(u);
                return r;
        }

        LIST_FOREACH(sessions_by_user, s, u->sessions) {
                k = session_stop(s, force);
                if (k < 0)
                        r = k;
        }

        /* Kill systemd */
        k = user_stop_service(u);
        if (k < 0)
                r = k;

        /* Kill cgroup */
        k = user_stop_slice(u);
        if (k < 0)
                r = k;

        u->stopping = true;

        user_save(u);

        return r;
}

int user_finalize(User *u) {
        Session *s;
        int r = 0, k;

        assert(u);

        if (u->started)
                log_debug("User %s logged out.", u->name);

        LIST_FOREACH(sessions_by_user, s, u->sessions) {
                k = session_finalize(s);
                if (k < 0)
                        r = k;
        }

        /* 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 = { 0, 0 };

        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 = strappenda("/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->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);
}

void user_elect_display(User *u) {
        Session *graphical = NULL, *text = NULL, *other = NULL, *s;

        assert(u);

        /* This elects a primary session for each user, which we call
         * the "display". We try to keep the assignment stable, but we
         * "upgrade" to better choices. */

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

                if (s->class != SESSION_USER)
                        continue;

                if (s->stopping)
                        continue;

                if (SESSION_TYPE_IS_GRAPHICAL(s->type))
                        graphical = s;
                else if (s->type == SESSION_TTY)
                        text = s;
                else
                        other = s;
        }

        if (graphical &&
            (!u->display ||
             u->display->class != SESSION_USER ||
             u->display->stopping ||
             !SESSION_TYPE_IS_GRAPHICAL(u->display->type))) {
                u->display = graphical;
                return;
        }

        if (text &&
            (!u->display ||
             u->display->class != SESSION_USER ||
             u->display->stopping ||
             u->display->type != SESSION_TTY)) {
                u->display = text;
                return;
        }

        if (other &&
            (!u->display ||
             u->display->class != SESSION_USER ||
             u->display->stopping))
                u->display = other;
}

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 ? errno : EINVAL, "Failed to parse percentage value, ignoring: %s", rvalue);
                        return 0;
                }

                if (ul <= 0 || ul >= 100) {
                        log_syntax(unit, LOG_ERR, filename, line, errno ? errno : EINVAL, "Percentage value out of range, ignoring: %s", rvalue);
                        return 0;
                }

                *sz = PAGE_ALIGN((size_t) ((physical_memory() * (uint64_t) ul) / (uint64_t) 100));
        } else {
                off_t o;

                r = parse_size(rvalue, 1024, &o);
                if (r < 0 || (off_t) (size_t) o != o) {
                        log_syntax(unit, LOG_ERR, filename, line, r < 0 ? -r : ERANGE, "Failed to parse size value, ignoring: %s", rvalue);
                        return 0;
                }

                *sz = PAGE_ALIGN((size_t) o);
        }

        return 0;
}