logind: log with AUTH facility

[elogind.git] / src / login / logind.c

diff --git a/src/login/logind.c b/src/login/logind.c
index 4633a5ef29109c9cf51538dfdc99deb5de96a4fb..a54195cebb6d578ab343302090bad343630e6430 100644 (file)
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -29,6 +29,8 @@
 #include <sys/ioctl.h>
 #include <linux/vt.h>
 
+#include <systemd/sd-daemon.h>
+
 #include "logind.h"
 #include "dbus-common.h"
 #include "dbus-loop.h"
@@ -655,7 +657,6 @@ int manager_dispatch_seat_udev(Manager *m) {
         return r;
 }
 
-
 int manager_dispatch_vcsa_udev(Manager *m) {
         struct udev_device *d;
         int r = 0;
@@ -780,34 +781,74 @@ finish:
         return r;
 }
 
-void manager_cgroup_notify_empty(Manager *m, const char *cgroup) {
+int manager_get_session_by_cgroup(Manager *m, const char *cgroup, Session **session) {
         Session *s;
         char *p;
 
         assert(m);
         assert(cgroup);
+        assert(session);
+
+        s = hashmap_get(m->cgroups, cgroup);
+        if (s) {
+                *session = s;
+                return 1;
+        }
 
         p = strdup(cgroup);
         if (!p) {
                 log_error("Out of memory.");
-                return;
+                return -ENOMEM;
         }
 
         for (;;) {
                 char *e;
 
-                if (isempty(p) || streq(p, "/"))
-                        break;
-
-                s = hashmap_get(m->cgroups, p);
-                if (s)
-                        session_add_to_gc_queue(s);
+                e = strrchr(p, '/');
+                if (!e || e == p) {
+                        free(p);
+                        *session = NULL;
+                        return 0;
+                }
 
-                assert_se(e = strrchr(p, '/'));
                 *e = 0;
+
+                s = hashmap_get(m->cgroups, p);
+                if (s) {
+                        free(p);
+                        *session = s;
+                        return 1;
+                }
         }
+}
+
+int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) {
+        char *p;
+        int r;
 
+        assert(m);
+        assert(pid >= 1);
+        assert(session);
+
+        r = cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, pid, &p);
+        if (r < 0)
+                return r;
+
+        r = manager_get_session_by_cgroup(m, p, session);
         free(p);
+
+        return r;
+}
+
+void manager_cgroup_notify_empty(Manager *m, const char *cgroup) {
+        Session *s;
+        int r;
+
+        r = manager_get_session_by_cgroup(m, cgroup, &s);
+        if (r <= 0)
+                return;
+
+        session_add_to_gc_queue(s);
 }
 
 static void manager_pipe_notify_eof(Manager *m, int fd) {
@@ -906,6 +947,12 @@ static int manager_connect_console(Manager *m) {
 
         m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
         if (m->console_active_fd < 0) {
+
+                /* On certain architectures (S390 and Xen), /dev/tty0
+                   does not exist, so don't fail if we can't open it.*/
+                if (errno == ENOENT)
+                        return 0;
+
                 log_error("Failed to open /sys/class/tty/tty0/active: %m");
                 return -errno;
         }
@@ -950,7 +997,8 @@ static int manager_connect_udev(Manager *m) {
         ev.events = EPOLLIN;
         ev.data.u32 = FD_SEAT_UDEV;
 
-        if (m->n_autovts <= 0)
+        /* Don't bother watching VCSA devices, if nobody cares */
+        if (m->n_autovts <= 0 || m->console_active_fd < 0)
                 return 0;
 
         if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_seat_fd, &ev) < 0)
@@ -1069,13 +1117,13 @@ int manager_startup(Manager *m) {
         if (m->epoll_fd < 0)
                 return -errno;
 
-        /* Connect to udev */
-        r = manager_connect_udev(m);
+        /* Connect to console */
+        r = manager_connect_console(m);
         if (r < 0)
                 return r;
 
-        /* Connect to console */
-        r = manager_connect_console(m);
+        /* Connect to udev */
+        r = manager_connect_udev(m);
         if (r < 0)
                 return r;
 
@@ -1168,7 +1216,7 @@ static int manager_parse_config_file(Manager *m) {
 
         assert(m);
 
-        fn = "/etc/systemd/systemd-logind.conf";
+        fn = "/etc/systemd/logind.conf";
         f = fopen(fn, "re");
         if (!f) {
                 if (errno == ENOENT)
@@ -1192,6 +1240,7 @@ int main(int argc, char *argv[]) {
         int r;
 
         log_set_target(LOG_TARGET_AUTO);
+        log_set_facility(LOG_AUTH);
         log_parse_environment();
         log_open();
 
@@ -1218,9 +1267,20 @@ int main(int argc, char *argv[]) {
                 goto finish;
         }
 
+        log_debug("systemd-logind running as pid %lu", (unsigned long) getpid());
+
+        sd_notify(false,
+                  "READY=1\n"
+                  "STATUS=Processing requests...");
+
         r = manager_run(m);
 
+        log_debug("systemd-logind stopped as pid %lu", (unsigned long) getpid());
+
 finish:
+        sd_notify(false,
+                  "STATUS=Shutting down...");
+
         if (m)
                 manager_free(m);