rtnl: add link_get_flags

[elogind.git] / src / libsystemd-rtnl / rtnl-message.c

diff --git a/src/libsystemd-rtnl/rtnl-message.c b/src/libsystemd-rtnl/rtnl-message.c
index b2b7feb3c86bd376bb9911c86be32ad59a4f78bd..8d62df965a199500925939abc22f4ec5fbddeafd 100644 (file)
--- a/src/libsystemd-rtnl/rtnl-message.c
+++ b/src/libsystemd-rtnl/rtnl-message.c
@@ -127,7 +127,7 @@ int sd_rtnl_message_route_new(uint16_t nlmsg_type, unsigned char rtm_family,
         return 0;
 }
 
-int sd_rtnl_message_link_new(uint16_t nlmsg_type, int index, unsigned int type, unsigned int flags, sd_rtnl_message **ret) {
+int sd_rtnl_message_link_new(uint16_t nlmsg_type, int index, unsigned type, unsigned flags, sd_rtnl_message **ret) {
         struct ifinfomsg *ifi;
         int r;
 
@@ -222,6 +222,21 @@ int sd_rtnl_message_link_get_ifindex(sd_rtnl_message *m, int *ifindex) {
         return 0;
 }
 
+int sd_rtnl_message_link_get_flags(sd_rtnl_message *m, unsigned *flags) {
+        struct ifinfomsg *ifi;
+
+        assert_return(m, -EINVAL);
+        assert_return(flags, -EINVAL);
+        assert_return(m->hdr->nlmsg_type == RTM_NEWLINK || m->hdr->nlmsg_type == RTM_DELLINK ||
+                      m->hdr->nlmsg_type == RTM_GETLINK || m->hdr->nlmsg_type == RTM_SETLINK, -EINVAL);
+
+        ifi = NLMSG_DATA(m->hdr);
+
+        *flags = ifi->ifi_flags;
+
+        return 0;
+}
+
 /* If successful the updated message will be correctly aligned, if unsuccessful the old message is
    untouched */
 static int add_rtattr(sd_rtnl_message *m, unsigned short type, const void *data, size_t data_length) {
@@ -615,8 +630,8 @@ int socket_read_message(sd_rtnl *nl, sd_rtnl_message **ret) {
         else if ((size_t) k < sizeof(struct nlmsghdr) ||
                         (size_t) k < m->hdr->nlmsg_len)
                 k = -EIO; /* too small (we do accept too big though) */
-        else if (m->hdr->nlmsg_pid != nl->sockaddr.nl.nl_pid)
-                k = 0; /* not for us */
+        else if (m->hdr->nlmsg_pid && m->hdr->nlmsg_pid != nl->sockaddr.nl.nl_pid)
+                k = 0; /* not broadcast and not for us */
 
         if (k > 0)
                 switch (m->hdr->nlmsg_type) {