summaryrefslogtreecommitdiff
path: root/src/libsystemd/sd-bus/bus-util.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libsystemd/sd-bus/bus-util.c')
-rw-r--r--src/libsystemd/sd-bus/bus-util.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/bus-util.c b/src/libsystemd/sd-bus/bus-util.c
index 52d4ebe611..3bd6b8db9a 100644
--- a/src/libsystemd/sd-bus/bus-util.c
+++ b/src/libsystemd/sd-bus/bus-util.c
@@ -190,11 +190,33 @@ int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) {
return has_owner;
}
+static int check_good_user(sd_bus_message *m, uid_t good_user) {
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ uid_t sender_uid;
+ int r;
+
+ assert(m);
+
+ if (good_user == UID_INVALID)
+ return 0;
+
+ r = sd_bus_query_sender_creds(m, SD_BUS_CREDS_EUID, &creds);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_creds_get_euid(creds, &sender_uid);
+ if (r < 0)
+ return r;
+
+ return sender_uid == good_user;
+}
+
int bus_verify_polkit(
sd_bus_message *call,
int capability,
const char *action,
bool interactive,
+ uid_t good_user,
bool *_challenge,
sd_bus_error *e) {
@@ -203,6 +225,10 @@ int bus_verify_polkit(
assert(call);
assert(action);
+ r = check_good_user(call, good_user);
+ if (r != 0)
+ return r;
+
r = sd_bus_query_sender_privilege(call, capability);
if (r < 0)
return r;
@@ -330,6 +356,7 @@ int bus_verify_polkit_async(
int capability,
const char *action,
bool interactive,
+ uid_t good_user,
Hashmap **registry,
sd_bus_error *error) {
@@ -347,6 +374,10 @@ int bus_verify_polkit_async(
assert(action);
assert(registry);
+ r = check_good_user(call, good_user);
+ if (r != 0)
+ return r;
+
#ifdef ENABLE_POLKIT
q = hashmap_get(*registry, call);
if (q) {