libsystemd-login: add sd_session_get_remote_{host, user}

[elogind.git] / src / login / logind-seat-dbus.c

diff --git a/src/login/logind-seat-dbus.c b/src/login/logind-seat-dbus.c
index 268cd993aa83186a1c0db47867b59928bca6695c..236af5eb9ebcbbfefaceeebb03331e144f29ba70 100644 (file)
--- a/src/login/logind-seat-dbus.c
+++ b/src/login/logind-seat-dbus.c
@@ -21,6 +21,7 @@
 
 #include <errno.h>
 #include <string.h>
+#include <sys/capability.h>
 
 #include "util.h"
 #include "bus-util.h"
@@ -35,8 +36,8 @@ static int property_get_active_session(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         _cleanup_free_ char *p = NULL;
         Seat *s = userdata;
@@ -58,8 +59,8 @@ static int property_get_can_multi_session(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         Seat *s = userdata;
 
@@ -76,8 +77,8 @@ static int property_get_can_tty(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         Seat *s = userdata;
 
@@ -94,8 +95,8 @@ static int property_get_can_graphical(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         Seat *s = userdata;
 
@@ -103,7 +104,7 @@ static int property_get_can_graphical(
         assert(reply);
         assert(s);
 
-        return sd_bus_message_append(reply, "b", seat_can_tty(s));
+        return sd_bus_message_append(reply, "b", seat_can_graphical(s));
 }
 
 static int property_get_sessions(
@@ -112,8 +113,8 @@ static int property_get_sessions(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         Seat *s = userdata;
         Session *session;
@@ -153,8 +154,8 @@ static int property_get_idle_hint(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         Seat *s = userdata;
 
@@ -171,8 +172,8 @@ static int property_get_idle_since_hint(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         Seat *s = userdata;
         dual_timestamp t;
@@ -192,7 +193,7 @@ static int property_get_idle_since_hint(
         return sd_bus_message_append(reply, "t", u);
 }
 
-static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
         Seat *s = userdata;
         int r;
 
@@ -202,12 +203,12 @@ static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata
 
         r = seat_stop_sessions(s);
         if (r < 0)
-                return sd_bus_reply_method_errno(bus, message, r, NULL);
+                return r;
 
-        return sd_bus_reply_method_return(bus, message, NULL);
+        return sd_bus_reply_method_return(message, NULL);
 }
 
-static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata) {
+static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
         Seat *s = userdata;
         const char *name;
         Session *session;
@@ -219,42 +220,42 @@ static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *u
 
         r = sd_bus_message_read(message, "s", &name);
         if (r < 0)
-                return sd_bus_reply_method_errno(bus, message, r, NULL);
+                return r;
 
         session = hashmap_get(s->manager->sessions, name);
         if (!session)
-                return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
+                return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
 
         if (session->seat != s)
-                return sd_bus_reply_method_errorf(bus, message, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
+                return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", name, s->id);
 
         r = session_activate(session);
         if (r < 0)
-                return sd_bus_reply_method_errno(bus, message, r, NULL);
+                return r;
 
-        return sd_bus_reply_method_return(bus, message, NULL);
+        return sd_bus_reply_method_return(message, NULL);
 }
 
 const sd_bus_vtable seat_vtable[] = {
         SD_BUS_VTABLE_START(0),
 
-        SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), 0),
+        SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Seat, id), SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("ActiveSession", "(so)", property_get_active_session, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
-        SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, 0),
-        SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, 0),
+        SD_BUS_PROPERTY("CanMultiSession", "b", property_get_can_multi_session, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+        SD_BUS_PROPERTY("CanTTY", "b", property_get_can_tty, 0, SD_BUS_VTABLE_PROPERTY_CONST),
         SD_BUS_PROPERTY("CanGraphical", "b", property_get_can_graphical, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 
-        SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, 0),
-        SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, 0),
+        SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+        SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
 
         SD_BUS_VTABLE_END
 };
 
-int seat_object_find(sd_bus *bus, const char *path, const char *interface, void **found, void *userdata) {
+int seat_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
         Manager *m = userdata;
         Seat *seat;
         int r;
@@ -266,6 +267,7 @@ int seat_object_find(sd_bus *bus, const char *path, const char *interface, void
         assert(m);
 
         if (streq(path, "/org/freedesktop/login1/seat/self")) {
+                _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
                 sd_bus_message *message;
                 Session *session;
                 pid_t pid;
@@ -274,9 +276,13 @@ int seat_object_find(sd_bus *bus, const char *path, const char *interface, void
                 if (!message)
                         return 0;
 
-                r = sd_bus_get_owner_pid(bus, sd_bus_message_get_sender(message), &pid);
+                r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
                 if (r < 0)
-                        return 0;
+                        return r;
+
+                r = sd_bus_creds_get_pid(creds, &pid);
+                if (r < 0)
+                        return r;
 
                 r = manager_get_session_by_pid(m, pid, &session);
                 if (r <= 0)
@@ -319,7 +325,7 @@ char *seat_bus_path(Seat *s) {
         return strappend("/org/freedesktop/login1/seat/", t);
 }
 
-int seat_node_enumerator(sd_bus *bus, const char *path, char ***nodes, void *userdata) {
+int seat_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
         _cleanup_strv_free_ char **l = NULL;
         Manager *m = userdata;
         Seat *seat;