summaryrefslogtreecommitdiff
path: root/src/network/networkd-manager.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/network/networkd-manager.c')
-rw-r--r--src/network/networkd-manager.c47
1 files changed, 39 insertions, 8 deletions
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 4c9043486a..49e353a7b1 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -35,6 +35,7 @@
#include "virt.h"
#include "sd-rtnl.h"
+#include "sd-daemon.h"
/* use 8 MB for receive socket kernel queue. */
#define RCVBUF_SIZE (8*1024*1024)
@@ -75,9 +76,33 @@ static int setup_default_address_pool(Manager *m) {
return 0;
}
+static int systemd_netlink_fd(int *ret) {
+ int n, fd, rtnl_fd = -1;
+
+ n = sd_listen_fds(true);
+ if (n <= 0)
+ return -EINVAL;
+
+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++) {
+ if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) {
+ if (rtnl_fd >= 0)
+ return -EINVAL;
+
+ rtnl_fd = fd;
+ }
+ }
+
+ if (rtnl_fd < 0)
+ return -EINVAL;
+
+ *ret = rtnl_fd;
+
+ return 0;
+}
+
int manager_new(Manager **ret) {
_cleanup_manager_free_ Manager *m = NULL;
- int r;
+ int r, fd;
m = new0(Manager, 1);
if (!m)
@@ -96,14 +121,20 @@ int manager_new(Manager **ret) {
sd_event_add_signal(m->event, NULL, SIGTERM, NULL, NULL);
sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
- r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR,
- RTNLGRP_IPV6_IFADDR);
- if (r < 0)
- return r;
+ if (systemd_netlink_fd(&fd) < 0) {
+ r = sd_rtnl_open(&m->rtnl, 3, RTNLGRP_LINK, RTNLGRP_IPV4_IFADDR,
+ RTNLGRP_IPV6_IFADDR);
+ if (r < 0)
+ return r;
- r = sd_rtnl_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
- if (r < 0)
- return r;
+ r = sd_rtnl_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
+ if (r < 0)
+ return r;
+ } else {
+ r = sd_rtnl_new_from_netlink(&m->rtnl, fd);
+ if (r < 0)
+ return r;
+ }
r = sd_bus_default_system(&m->bus);
if (r < 0 && r != -ENOENT) /* TODO: drop when we can rely on kdbus */