sd-rtnl: recv_message - log when dropping message

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

diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
index 165e84d7a0a1d2cdb11e31f305eed6ba86ab2c5f..cfb2af31420a37fae42df25c4c968bb25dc171bd 100644 (file)
--- a/src/libsystemd/sd-rtnl/rtnl-message.c
+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
@@ -220,6 +220,58 @@ int sd_rtnl_message_new_route(sd_rtnl *rtnl, sd_rtnl_message **ret,
         return 0;
 }
 
+int sd_rtnl_message_neigh_set_flags(sd_rtnl_message *m, uint8_t flags) {
+        struct ndmsg *ndm;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
+
+        ndm = NLMSG_DATA(m->hdr);
+        ndm->ndm_flags |= flags;
+
+        return 0;
+}
+
+int sd_rtnl_message_neigh_set_state(sd_rtnl_message *m, uint16_t state) {
+        struct ndmsg *ndm;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
+
+        ndm = NLMSG_DATA(m->hdr);
+        ndm->ndm_state |= state;
+
+        return 0;
+}
+
+int sd_rtnl_message_neigh_get_flags(sd_rtnl_message *m, uint8_t *flags) {
+        struct ndmsg *ndm;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
+
+        ndm = NLMSG_DATA(m->hdr);
+        *flags = ndm->ndm_flags;
+
+        return 0;
+}
+
+int sd_rtnl_message_neigh_get_state(sd_rtnl_message *m, uint16_t *state) {
+        struct ndmsg *ndm;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
+
+        ndm = NLMSG_DATA(m->hdr);
+        *state = ndm->ndm_state;
+
+        return 0;
+}
+
 int sd_rtnl_message_neigh_get_family(sd_rtnl_message *m, int *family) {
         struct ndmsg *ndm;
 
@@ -255,7 +307,9 @@ int sd_rtnl_message_new_neigh(sd_rtnl *rtnl, sd_rtnl_message **ret, uint16_t nlm
         int r;
 
         assert_return(rtnl_message_type_is_neigh(nlmsg_type), -EINVAL);
-        assert_return(ndm_family == AF_INET || ndm_family == AF_INET6, -EINVAL);
+        assert_return(ndm_family == AF_INET  ||
+                      ndm_family == AF_INET6 ||
+                      ndm_family == PF_BRIDGE, -EINVAL);
         assert_return(ret, -EINVAL);
 
         r = message_new(rtnl, ret, nlmsg_type);
@@ -1309,6 +1363,8 @@ static int socket_recv_message(int fd, struct iovec *iov, uint32_t *_group, bool
                         /* from the kernel */
                         if (ucred->uid == 0 && ucred->pid == 0)
                                 auth = true;
+                        else
+                                log_debug("rtnl: ignoring message from uid %u pid %u", ucred->uid, ucred->pid);
                 } else if (cmsg->cmsg_level == SOL_NETLINK &&
                            cmsg->cmsg_type == NETLINK_PKTINFO &&
                            cmsg->cmsg_len == CMSG_LEN(sizeof(struct nl_pktinfo))) {