#include "def.h"
#include "capability.h"
#include "bus-policy.h"
+#include "bus-control.h"
+#include "smack-util.h"
static char *arg_address = NULL;
static char *arg_command_line_buffer = NULL;
}
if (granted) {
- /* Then check whether us, the recipient can recieve from the sender's name */
+ /* Then check whether us (the recipient) can recieve from the sender's name */
if (strv_isempty(sender_names)) {
if (policy_check_recv(policy, our_ucred->uid, our_ucred->gid, m->header->type, NULL, m->path, m->interface, m->member))
return 0;
/* The message came from the legacy client, and is sent to kdbus. */
if (m->destination) {
- r = sd_bus_get_name_creds(to, m->destination,
- SD_BUS_CREDS_WELL_KNOWN_NAMES|SD_BUS_CREDS_UNIQUE_NAME|
- SD_BUS_CREDS_UID|SD_BUS_CREDS_GID|SD_BUS_CREDS_PID, &destination_creds);
+ r = bus_get_name_creds_kdbus(to, m->destination,
+ SD_BUS_CREDS_WELL_KNOWN_NAMES|SD_BUS_CREDS_UNIQUE_NAME|
+ SD_BUS_CREDS_UID|SD_BUS_CREDS_GID|SD_BUS_CREDS_PID,
+ true, &destination_creds);
if (r < 0)
return r;
(void) sd_bus_creds_get_gid(destination_creds, &destination_gid);
}
- /* First check if we, the sender can send to this name */
+ /* First check if we (the sender) can send to this name */
if (strv_isempty(destination_names)) {
if (policy_check_send(policy, our_ucred->uid, our_ucred->gid, m->header->type, NULL, m->path, m->interface, m->member))
granted = true;
return 0;
}
+static int mac_smack_apply_label_and_drop_cap_mac_admin(pid_t its_pid, const char *new_label) {
+#ifdef HAVE_SMACK
+ int r = 0, k;
+
+ if (!mac_smack_use())
+ return 0;
+
+ if (new_label && its_pid > 0)
+ r = mac_smack_apply_pid(its_pid, new_label);
+
+ k = drop_capability(CAP_MAC_ADMIN);
+ return r < 0 ? r : k;
+#else
+ return 0;
+#endif
+}
+
int main(int argc, char *argv[]) {
_cleanup_bus_close_unref_ sd_bus *a = NULL, *b = NULL;
if (is_unix) {
(void) getpeercred(in_fd, &ucred);
(void) getpeersec(in_fd, &peersec);
+
+ r = mac_smack_apply_label_and_drop_cap_mac_admin(getpid(), peersec);
+ if (r < 0)
+ log_warning_errno(r, "Failed to set SMACK label (%s) and drop CAP_MAC_ADMIN: %m", peersec);
}
if (arg_drop_privileges) {
}
policy = &policy_buffer;
- policy_dump(policy);
+ /* policy_dump(policy); */
if (!policy_check_hello(policy, ucred.uid, ucred.gid)) {
r = log_error_errno(EPERM, "Policy denied connection.");