-int sd_rtnl_message_route_set_dst_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
- struct rtmsg *rtm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
-
- rtm = NLMSG_DATA(m->hdr);
-
- if ((rtm->rtm_family == AF_INET && prefixlen > 32) ||
- (rtm->rtm_family == AF_INET6 && prefixlen > 128))
- return -ERANGE;
-
- rtm->rtm_dst_len = prefixlen;
-
- return 0;
-}
-
-int sd_rtnl_message_route_set_src_prefixlen(sd_netlink_message *m, unsigned char prefixlen) {
- struct rtmsg *rtm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
-
- rtm = NLMSG_DATA(m->hdr);
-
- if ((rtm->rtm_family == AF_INET && prefixlen > 32) ||
- (rtm->rtm_family == AF_INET6 && prefixlen > 128))
- return -ERANGE;
-
- rtm->rtm_src_len = prefixlen;
-
- return 0;
-}
-
-int sd_rtnl_message_route_set_scope(sd_netlink_message *m, unsigned char scope) {
- struct rtmsg *rtm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
-
- rtm = NLMSG_DATA(m->hdr);
-
- rtm->rtm_scope = scope;
-
- return 0;
-}
-
-int sd_rtnl_message_route_get_family(sd_netlink_message *m, int *family) {
- struct rtmsg *rtm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
- assert_return(family, -EINVAL);
-
- rtm = NLMSG_DATA(m->hdr);
-
- *family = rtm->rtm_family;
-
- return 0;
-}
-
-int sd_rtnl_message_route_get_dst_prefixlen(sd_netlink_message *m, unsigned char *dst_len) {
- struct rtmsg *rtm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
- assert_return(dst_len, -EINVAL);
-
- rtm = NLMSG_DATA(m->hdr);
-
- *dst_len = rtm->rtm_dst_len;
-
- return 0;
-}
-
-int sd_rtnl_message_route_get_src_prefixlen(sd_netlink_message *m, unsigned char *src_len) {
- struct rtmsg *rtm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_route(m->hdr->nlmsg_type), -EINVAL);
- assert_return(src_len, -EINVAL);
-
- rtm = NLMSG_DATA(m->hdr);
-
- *src_len = rtm->rtm_src_len;
-
- return 0;
-}
-
-int sd_rtnl_message_new_route(sd_netlink *rtnl, sd_netlink_message **ret,
- uint16_t nlmsg_type, int rtm_family,
- unsigned char rtm_protocol) {
- struct rtmsg *rtm;
- int r;
-
- assert_return(rtnl_message_type_is_route(nlmsg_type), -EINVAL);
- assert_return((nlmsg_type == RTM_GETROUTE && rtm_family == AF_UNSPEC) ||
- rtm_family == AF_INET || rtm_family == AF_INET6, -EINVAL);
- assert_return(ret, -EINVAL);
-
- r = message_new(rtnl, ret, nlmsg_type);
- if (r < 0)
- return r;
-
- if (nlmsg_type == RTM_NEWROUTE)
- (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_APPEND;
-
- rtm = NLMSG_DATA((*ret)->hdr);
-
- rtm->rtm_family = rtm_family;
- rtm->rtm_scope = RT_SCOPE_UNIVERSE;
- rtm->rtm_type = RTN_UNICAST;
- rtm->rtm_table = RT_TABLE_MAIN;
- rtm->rtm_protocol = rtm_protocol;
-
- return 0;
-}
-
-int sd_rtnl_message_neigh_set_flags(sd_netlink_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_netlink_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_netlink_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_netlink_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_netlink_message *m, int *family) {
- struct ndmsg *ndm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
- assert_return(family, -EINVAL);
-
- ndm = NLMSG_DATA(m->hdr);
-
- *family = ndm->ndm_family;
-
- return 0;
-}
-
-int sd_rtnl_message_neigh_get_ifindex(sd_netlink_message *m, int *index) {
- struct ndmsg *ndm;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_neigh(m->hdr->nlmsg_type), -EINVAL);
- assert_return(index, -EINVAL);
-
- ndm = NLMSG_DATA(m->hdr);
-
- *index = ndm->ndm_ifindex;
-
- return 0;
-}
-
-int sd_rtnl_message_new_neigh(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nlmsg_type, int index, int ndm_family) {
- struct ndmsg *ndm;
- int r;
-
- assert_return(rtnl_message_type_is_neigh(nlmsg_type), -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);
- if (r < 0)
- return r;
-
- if (nlmsg_type == RTM_NEWNEIGH)
- (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_APPEND;
-
- ndm = NLMSG_DATA((*ret)->hdr);
-
- ndm->ndm_family = ndm_family;
- ndm->ndm_ifindex = index;
-
- return 0;
-}
-
-int sd_rtnl_message_link_set_flags(sd_netlink_message *m, unsigned flags, unsigned change) {
- struct ifinfomsg *ifi;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
- assert_return(change, -EINVAL);
-
- ifi = NLMSG_DATA(m->hdr);
-
- ifi->ifi_flags = flags;
- ifi->ifi_change = change;
-
- return 0;
-}
-
-int sd_rtnl_message_link_set_type(sd_netlink_message *m, unsigned type) {
- struct ifinfomsg *ifi;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
-
- ifi = NLMSG_DATA(m->hdr);
-
- ifi->ifi_type = type;
-
- return 0;
-}
-
-int sd_rtnl_message_link_set_family(sd_netlink_message *m, unsigned family) {
- struct ifinfomsg *ifi;
-
- assert_return(m, -EINVAL);
- assert_return(m->hdr, -EINVAL);
- assert_return(rtnl_message_type_is_link(m->hdr->nlmsg_type), -EINVAL);
-
- ifi = NLMSG_DATA(m->hdr);
-
- ifi->ifi_family = family;
-
- return 0;
-}
-
-int sd_rtnl_message_new_link(sd_netlink *rtnl, sd_netlink_message **ret,
- uint16_t nlmsg_type, int index) {
- struct ifinfomsg *ifi;
- int r;
-
- assert_return(rtnl_message_type_is_link(nlmsg_type), -EINVAL);
- assert_return(nlmsg_type != RTM_DELLINK || index > 0, -EINVAL);
- assert_return(ret, -EINVAL);
-
- r = message_new(rtnl, ret, nlmsg_type);
- if (r < 0)
- return r;
-
- if (nlmsg_type == RTM_NEWLINK)
- (*ret)->hdr->nlmsg_flags |= NLM_F_CREATE | NLM_F_EXCL;
-
- ifi = NLMSG_DATA((*ret)->hdr);
-
- ifi->ifi_family = AF_UNSPEC;
- ifi->ifi_index = index;
-
- return 0;
-}
-