X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flogin%2Flogind-core.c;h=a128246d1ab0de09a2afc8260779a28e1be64bba;hb=48a439f2dac67302f3e7d1ccb21bd93e919efd02;hp=ca34d378ff02fdffdf0c98b93dbce61f7cba08ac;hpb=61376f96a98291b5421bfd79a15ca4db50c2a3fe;p=elogind.git

diff --git a/src/login/logind-core.c b/src/login/logind-core.c
index ca34d378f..a128246d1 100644
--- a/src/login/logind-core.c
+++ b/src/login/logind-core.c
@@ -19,21 +19,22 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
 #include <fcntl.h>
 #include <pwd.h>
-#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
 #include <linux/vt.h>
 
-#include "strv.h"
-#include "cgroup-util.h"
-#include "audit.h"
-#include "bus-util.h"
+#include "alloc-util.h"
 #include "bus-error.h"
-#include "udev-util.h"
+#include "bus-util.h"
+#include "cgroup-util.h"
+#include "fd-util.h"
 #include "logind.h"
+#include "strv.h"
+#include "terminal-util.h"
+#include "udev-util.h"
+#include "user-util.h"
 
 int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device) {
         Device *d;
@@ -97,15 +98,16 @@ int manager_add_session(Manager *m, const char *id, Session **_session) {
 
 int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user) {
         User *u;
+        int r;
 
         assert(m);
         assert(name);
 
-        u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+        u = hashmap_get(m->users, UID_TO_PTR(uid));
         if (!u) {
-                u = user_new(m, uid, gid, name);
-                if (!u)
-                        return -ENOMEM;
+                r = user_new(&u, m, uid, gid, name);
+                if (r < 0)
+                        return r;
         }
 
         if (_user)
@@ -115,8 +117,8 @@ int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **
 }
 
 int manager_add_user_by_name(Manager *m, const char *name, User **_user) {
-        uid_t uid;
-        gid_t gid;
+        uid_t uid = 1000;
+        gid_t gid = 1000;
         int r;
 
         assert(m);
@@ -185,44 +187,6 @@ int manager_add_button(Manager *m, const char *name, Button **_button) {
         return 0;
 }
 
-int manager_watch_busname(Manager *m, const char *name) {
-        char *n;
-        int r;
-
-        assert(m);
-        assert(name);
-
-        if (set_get(m->busnames, (char*) name))
-                return 0;
-
-        n = strdup(name);
-        if (!n)
-                return -ENOMEM;
-
-        r = set_put(m->busnames, n);
-        if (r < 0) {
-                free(n);
-                return r;
-        }
-
-        return 0;
-}
-
-void manager_drop_busname(Manager *m, const char *name) {
-        Session *session;
-        Iterator i;
-
-        assert(m);
-        assert(name);
-
-        /* keep it if the name still owns a controller */
-        HASHMAP_FOREACH(session, m->sessions, i)
-                if (session_is_controller(session, name))
-                        return;
-
-        free(set_remove(m->busnames, (char*) name));
-}
-
 int manager_process_seat_device(Manager *m, struct udev_device *d) {
         Device *device;
         int r;
@@ -314,31 +278,50 @@ int manager_process_button_device(Manager *m, struct udev_device *d) {
 }
 
 int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) {
+#if 0 /// elogind does not support systemd units, but its own session system
         _cleanup_free_ char *unit = NULL;
+#else
+        _cleanup_free_ char *session_name = NULL;
+#endif // 0
         Session *s;
         int r;
 
         assert(m);
-        assert(session);
 
         if (pid < 1)
                 return -EINVAL;
 
+#if 0 /// elogind does not support systemd units, but its own session system
         r = cg_pid_get_unit(pid, &unit);
         if (r < 0)
                 return 0;
 
         s = hashmap_get(m->session_units, unit);
+#else
+        log_debug_elogind("Searching session for PID %u", pid);
+        r = cg_pid_get_session(pid, &session_name);
+        if (r < 0)
+                return 0;
+
+        s = hashmap_get(m->sessions, session_name);
+        log_debug_elogind("Session Name \"%s\" -> Session \"%s\"",
+                          session_name, s && s->id ? s->id : "NULL");
+#endif // 0
         if (!s)
                 return 0;
 
-        *session = s;
+        if (session)
+                *session = s;
         return 1;
 }
 
 int manager_get_user_by_pid(Manager *m, pid_t pid, User **user) {
+#if 0 /// elogind does not support systemd units, but its own session system
         _cleanup_free_ char *unit = NULL;
         User *u;
+#else
+        Session *s;
+#endif // 0
         int r;
 
         assert(m);
@@ -347,6 +330,7 @@ int manager_get_user_by_pid(Manager *m, pid_t pid, User **user) {
         if (pid < 1)
                 return -EINVAL;
 
+#if 0 /// elogind does not support systemd units, but its own session system
         r = cg_pid_get_slice(pid, &unit);
         if (r < 0)
                 return 0;
@@ -356,13 +340,21 @@ int manager_get_user_by_pid(Manager *m, pid_t pid, User **user) {
                 return 0;
 
         *user = u;
+#else
+        r = manager_get_session_by_pid (m, pid, &s);
+        if (r <= 0)
+                return r;
+
+        *user = s->user;
+#endif // 0
+
         return 1;
 }
 
 int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
         Session *s;
         bool idle_hint;
-        dual_timestamp ts = { 0, 0 };
+        dual_timestamp ts = DUAL_TIMESTAMP_NULL;
         Iterator i;
 
         assert(m);
@@ -414,6 +406,7 @@ bool manager_shall_kill(Manager *m, const char *user) {
         return strv_contains(m->kill_only_users, user);
 }
 
+#if 0 /// UNNEEDED by elogind
 static int vt_is_busy(unsigned int vtnr) {
         struct vt_stat vt_stat;
         int r = 0;
@@ -478,8 +471,9 @@ int manager_spawn_autovt(Manager *m, unsigned int vtnr) {
 
         return r;
 }
+#endif // 0
 
-bool manager_is_docked(Manager *m) {
+static bool manager_is_docked(Manager *m) {
         Iterator i;
         Button *b;
 
@@ -490,7 +484,7 @@ bool manager_is_docked(Manager *m) {
         return false;
 }
 
-int manager_count_displays(Manager *m) {
+static int manager_count_external_displays(Manager *m) {
         _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
         struct udev_list_entry *item = NULL, *first = NULL;
         int r;
@@ -512,7 +506,8 @@ int manager_count_displays(Manager *m) {
         udev_list_entry_foreach(item, first) {
                 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
                 struct udev_device *p;
-                const char *status;
+                const char *status, *enabled, *dash, *nn, *i;
+                bool external = false;
 
                 d = udev_device_new_from_syspath(m->udev, udev_list_entry_get_name(item));
                 if (!d)
@@ -520,7 +515,7 @@ int manager_count_displays(Manager *m) {
 
                 p = udev_device_get_parent(d);
                 if (!p)
-                        return -ENOMEM;
+                        continue;
 
                 /* If the parent shares the same subsystem as the
                  * device we are looking at then it is a connector,
@@ -528,6 +523,40 @@ int manager_count_displays(Manager *m) {
                 if (!streq_ptr(udev_device_get_subsystem(p), "drm"))
                         continue;
 
+                nn = udev_device_get_sysname(d);
+                if (!nn)
+                        continue;
+
+                /* Ignore internal displays: the type is encoded in
+                 * the sysfs name, as the second dash seperated item
+                 * (the first is the card name, the last the connector
+                 * number). We implement a whitelist of external
+                 * displays here, rather than a whitelist, to ensure
+                 * we don't block suspends too eagerly. */
+                dash = strchr(nn, '-');
+                if (!dash)
+                        continue;
+
+                dash++;
+                FOREACH_STRING(i, "VGA-", "DVI-I-", "DVI-D-", "DVI-A-"
+                               "Composite-", "SVIDEO-", "Component-",
+                               "DIN-", "DP-", "HDMI-A-", "HDMI-B-", "TV-") {
+
+                        if (startswith(dash, i)) {
+                                external = true;
+                                break;
+                        }
+                }
+                if (!external)
+                        continue;
+
+                /* Ignore ports that are not enabled */
+                enabled = udev_device_get_sysattr_value(d, "enabled");
+                if (!enabled)
+                        continue;
+                if (!streq_ptr(enabled, "enabled"))
+                        continue;
+
                 /* We count any connector which is not explicitly
                  * "disconnected" as connected. */
                 status = udev_device_get_sysattr_value(d, "status");
@@ -537,3 +566,25 @@ int manager_count_displays(Manager *m) {
 
         return n;
 }
+
+bool manager_is_docked_or_external_displays(Manager *m) {
+        int n;
+
+        /* If we are docked don't react to lid closing */
+        if (manager_is_docked(m)) {
+                log_debug("System is docked.");
+                return true;
+        }
+
+        /* If we have more than one display connected,
+         * assume that we are docked. */
+        n = manager_count_external_displays(m);
+        if (n < 0)
+                log_warning_errno(n, "Display counting failed: %m");
+        else if (n >= 1) {
+                log_debug("External (%i) displays connected.", n);
+                return true;
+        }
+
+        return false;
+}