along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include "capability.h"
#include "sd-event.h"
+#include "sd-daemon.h"
#include "networkd.h"
int main(int argc, char *argv[]) {
- _cleanup_manager_free_ Manager *m;
+ _cleanup_manager_free_ Manager *m = NULL;
+ const char *user = "systemd-network";
+ uid_t uid;
+ gid_t gid;
int r;
log_set_target(LOG_TARGET_AUTO);
if (argc != 1) {
log_error("This program takes no arguments.");
- return EXIT_FAILURE;
+ r = -EINVAL;
+ goto out;
}
- r = manager_new(&m);
+ r = get_user_creds(&user, &uid, &gid, NULL, NULL);
+ if (r < 0) {
+ log_error_errno(r, "Cannot resolve user name %s: %m", user);
+ goto out;
+ }
+
+ /* Always create the directories people can create inotify
+ * watches in. */
+ r = mkdir_safe_label("/run/systemd/netif", 0755, uid, gid);
if (r < 0)
- return EXIT_FAILURE;
+ log_error_errno(r, "Could not create runtime directory: %m");
- r = manager_udev_listen(m);
+ r = mkdir_safe_label("/run/systemd/netif/links", 0755, uid, gid);
if (r < 0)
- return EXIT_FAILURE;
+ log_error_errno(r, "Could not create runtime directory 'links': %m");
- r = manager_udev_enumerate_links(m);
+ r = mkdir_safe_label("/run/systemd/netif/leases", 0755, uid, gid);
if (r < 0)
- return EXIT_FAILURE;
+ log_error_errno(r, "Could not create runtime directory 'leases': %m");
- r = sd_event_loop(m->event);
+ r = drop_privileges(uid, gid,
+ (1ULL << CAP_NET_ADMIN) |
+ (1ULL << CAP_NET_BIND_SERVICE) |
+ (1ULL << CAP_NET_BROADCAST) |
+ (1ULL << CAP_NET_RAW));
if (r < 0)
- return EXIT_FAILURE;
+ goto out;
+
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
+
+ r = manager_new(&m);
+ if (r < 0) {
+ log_error_errno(r, "Could not create manager: %m");
+ goto out;
+ }
+
+ r = manager_udev_listen(m);
+ if (r < 0) {
+ log_error_errno(r, "Could not connect to udev: %m");
+ goto out;
+ }
+
+ r = manager_rtnl_listen(m);
+ if (r < 0) {
+ log_error_errno(r, "Could not connect to rtnl: %m");
+ goto out;
+ }
+
+ r = manager_bus_listen(m);
+ if (r < 0) {
+ log_error_errno(r, "Could not connect to system bus: %m");
+ goto out;
+ }
+
+ r = manager_load_config(m);
+ if (r < 0) {
+ log_error_errno(r, "Could not load configuration files: %m");
+ goto out;
+ }
+
+ r = manager_rtnl_enumerate_links(m);
+ if (r < 0) {
+ log_error_errno(r, "Could not enumerate links: %m");
+ goto out;
+ }
+
+ r = manager_rtnl_enumerate_addresses(m);
+ if (r < 0) {
+ log_error_errno(r, "Could not enumerate links: %m");
+ goto out;
+ }
+
+ sd_notify(false,
+ "READY=1\n"
+ "STATUS=Processing requests...");
+
+ r = sd_event_loop(m->event);
+ if (r < 0) {
+ log_error_errno(r, "Event loop failed: %m");
+ goto out;
+ }
+
+out:
+ sd_notify(false,
+ "STOPPING=1\n"
+ "STATUS=Shutting down...");
- return EXIT_SUCCESS;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}