cgroup: certain cgroup attributes are not available in the root cgroup, hence don...

[elogind.git] / src / core / dbus-cgroup.c

diff --git a/src/core/dbus-cgroup.c b/src/core/dbus-cgroup.c
index 4dbb83a76912fec0e419277a4b7487396a3c5146..775825bee912edd6bef66b878c1e52e907313b85 100644 (file)
--- a/src/core/dbus-cgroup.c
+++ b/src/core/dbus-cgroup.c
@@ -33,8 +33,8 @@ static int property_get_blockio_device_weight(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         CGroupContext *c = userdata;
         CGroupBlockIODeviceWeight *w;
@@ -63,8 +63,8 @@ static int property_get_blockio_device_bandwidths(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         CGroupContext *c = userdata;
         CGroupBlockIODeviceBandwidth *b;
@@ -97,8 +97,8 @@ static int property_get_device_allow(
                 const char *interface,
                 const char *property,
                 sd_bus_message *reply,
-                sd_bus_error *error,
-                void *userdata) {
+                void *userdata,
+                sd_bus_error *error) {
 
         CGroupContext *c = userdata;
         CGroupDeviceAllow *a;
@@ -278,6 +278,10 @@ int bus_cgroup_set_property(
                 if (r < 0)
                         return r;
 
+                r = sd_bus_message_exit_container(message);
+                if (r < 0)
+                        return r;
+
                 if (mode != UNIT_CHECK) {
                         CGroupBlockIODeviceBandwidth *a, *next;
                         _cleanup_free_ char *buf = NULL;
@@ -321,10 +325,9 @@ int bus_cgroup_set_property(
                 if (r < 0)
                         return r;
 
-                while (( r = sd_bus_message_read(message, "(st)", &path, &u64)) > 0) {
-                        unsigned long ul;
+                while ((r = sd_bus_message_read(message, "(st)", &path, &u64)) > 0) {
+                        unsigned long ul = u64;
 
-                        ul = (unsigned long) u64;
                         if (ul < 10 || ul > 1000)
                                 return sd_bus_error_set_errnof(error, EINVAL, "BlockIODeviceWeight out of range");
 
@@ -357,6 +360,10 @@ int bus_cgroup_set_property(
                         n++;
                 }
 
+                r = sd_bus_message_exit_container(message);
+                if (r < 0)
+                        return r;
+
                 if (mode != UNIT_CHECK) {
                         _cleanup_free_ char *buf = NULL;
                         _cleanup_fclose_ FILE *f = NULL;
@@ -443,8 +450,11 @@ int bus_cgroup_set_property(
 
                 while ((r = sd_bus_message_read(message, "(ss)", &path, &rwm)) > 0) {
 
-                        if (!path_startswith(path, "/dev"))
-                                return sd_bus_error_set_errnof(error, EINVAL, "DeviceAllow= requires device node");
+                        if ((!startswith(path, "/dev/") &&
+                             !startswith(path, "block-") &&
+                             !startswith(path, "char-")) ||
+                            strpbrk(path, WHITESPACE))
+                            return sd_bus_error_set_errnof(error, EINVAL, "DeviceAllow= requires device node");
 
                         if (isempty(rwm))
                                 rwm = "rwm";
@@ -479,11 +489,16 @@ int bus_cgroup_set_property(
                                 a->r = !!strchr(rwm, 'r');
                                 a->w = !!strchr(rwm, 'w');
                                 a->m = !!strchr(rwm, 'm');
-
                         }
 
                         n++;
                 }
+                if (r < 0)
+                        return r;
+
+                r = sd_bus_message_exit_container(message);
+                if (r < 0)
+                        return r;
 
                 if (mode != UNIT_CHECK) {
                         _cleanup_free_ char *buf = NULL;