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authorLennart Poettering <lennart@poettering.net>2011-05-23 23:55:06 +0200
committerLennart Poettering <lennart@poettering.net>2011-06-21 19:29:44 +0200
commit202630822f52e06dce8404633407329c38099278 (patch)
tree3cc32d83d3659b4b182af66bad5ee877be95d90a /src/logind-seat.c
parentf41607a6e10202003efe307eab975e8aca37d3de (diff)
logind: first version that compiles fine
Diffstat (limited to 'src/logind-seat.c')
-rw-r--r--src/logind-seat.c245
1 files changed, 245 insertions, 0 deletions
diff --git a/src/logind-seat.c b/src/logind-seat.c
new file mode 100644
index 0000000000..dcf1c7107b
--- /dev/null
+++ b/src/logind-seat.c
@@ -0,0 +1,245 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <assert.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <linux/vt.h>
+
+#include "logind.h"
+#include "util.h"
+
+Seat *seat_new(Manager *m, const char *id) {
+ Seat *s;
+
+ assert(m);
+ assert(id);
+
+ s = new0(Seat, 1);
+ if (!s)
+ return NULL;
+
+ s->state_file = strappend("/run/systemd/seat/", id);
+ if (!s->state_file) {
+ free(s);
+ return NULL;
+ }
+
+ s->id = file_name_from_path(s->state_file);
+
+ if (hashmap_put(m->seats, s->id, s) < 0) {
+ free(s->id);
+ free(s);
+ return NULL;
+ }
+
+ s->manager = m;
+
+ return s;
+}
+
+void seat_free(Seat *s) {
+ assert(s);
+
+ while (s->sessions)
+ session_free(s->sessions);
+
+ assert(!s->active);
+
+ while (s->devices)
+ device_free(s->devices);
+
+ hashmap_remove(s->manager->seats, s->id);
+
+ free(s->state_file);
+ free(s);
+}
+
+int seat_save(Seat *s) {
+ FILE *f;
+ int r;
+
+ assert(s);
+
+ r = safe_mkdir("/run/systemd/seat", 0755, 0, 0);
+ if (r < 0)
+ return r;
+
+ f = fopen(s->state_file, "we");
+ if (!f)
+ return -errno;
+
+ fprintf(f,
+ "IS_VTCONSOLE=%i\n",
+ s->manager->vtconsole == s);
+
+ if (s->active) {
+ assert(s->active->user);
+
+ fprintf(f,
+ "ACTIVE=%s\n"
+ "ACTIVE_UID=%lu\n",
+ s->active->id,
+ (unsigned long) s->active->user->uid);
+ }
+
+ if (s->sessions) {
+ Session *i;
+ fputs("OTHER_UIDS=", f);
+
+ LIST_FOREACH(sessions_by_seat, i, s->sessions) {
+ assert(i->user);
+
+ if (i == s->active)
+ continue;
+
+ fprintf(f,
+ "%s%lu",
+ i == s->sessions ? "" : " ",
+ (unsigned long) i->user->uid);
+ }
+ }
+
+ fflush(f);
+ if (ferror(f)) {
+ r = -errno;
+ unlink(s->state_file);
+ }
+
+ fclose(f);
+ return r;
+}
+
+int seat_load(Seat *s) {
+ assert(s);
+
+ return 0;
+}
+
+static int vt_allocate(int vtnr) {
+ int fd, r;
+ char *p;
+
+ assert(vtnr >= 1);
+
+ if (asprintf(&p, "/dev/tty%i", vtnr) < 0)
+ return -ENOMEM;
+
+ fd = open_terminal(p, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ free(p);
+
+ r = fd < 0 ? -errno : 0;
+
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+int seat_preallocate_vts(Seat *s) {
+ int i, r = 0;
+
+ assert(s);
+ assert(s->manager);
+
+ if (s->manager->n_autovts <= 0)
+ return 0;
+
+ if (s->manager->vtconsole != s)
+ return 0;
+
+ for (i = 1; i < s->manager->n_autovts; i++) {
+ int q;
+
+ q = vt_allocate(i);
+ if (r >= 0 && q < 0)
+ r = q;
+ }
+
+ return r;
+}
+
+int seat_apply_acls(Seat *s) {
+ assert(s);
+
+
+ return 0;
+}
+
+static int vt_is_busy(int vtnr) {
+ struct vt_stat vt_stat;
+ int r = 0, fd;
+
+ assert(vtnr >= 1);
+
+ fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ if (fd < 0)
+ return -errno;
+
+ if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0)
+ r = -errno;
+ else
+ r = !!(vt_stat.v_state & (1 << vtnr));
+
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+void seat_active_vt_changed(Seat *s, int vtnr) {
+ Session *i;
+
+ assert(s);
+ assert(vtnr >= 1);
+ assert(s->manager->vtconsole == s);
+
+ s->active = NULL;
+
+ LIST_FOREACH(sessions_by_seat, i, s->sessions)
+ if (i->vtnr == vtnr) {
+ s->active = i;
+ break;
+ }
+
+ seat_apply_acls(s);
+
+ if (vt_is_busy(vtnr) == 0)
+ manager_spawn_autovt(s->manager, vtnr);
+}
+
+int seat_stop(Seat *s) {
+ Session *session;
+ int r = 0;
+
+ assert(s);
+
+ LIST_FOREACH(sessions_by_seat, session, s->sessions) {
+ int k;
+
+ k = session_stop(session);
+ if (k < 0)
+ r = k;
+ }
+
+ return r;
+}