-nlmsg_failure:
-rtattr_failure:
- skb_trim(skb, b - skb->data);
- return -1;
-}
-
-#ifndef CONFIG_IP_NOSIOCRT
-
-int
-fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm,
- struct kern_rta *rta, struct rtentry *r)
-{
- int plen;
- u32 *ptr;
-
- memset(rtm, 0, sizeof(*rtm));
- memset(rta, 0, sizeof(*rta));
-
- if (r->rt_dst.sa_family != AF_INET)
- return -EAFNOSUPPORT;
-
- /* Check mask for validity:
- a) it must be contiguous.
- b) destination must have all host bits clear.
- c) if application forgot to set correct family (AF_INET),
- reject request unless it is absolutely clear i.e.
- both family and mask are zero.
- */
- plen = 32;
- ptr = &((struct sockaddr_in*)&r->rt_dst)->sin_addr.s_addr;
- if (!(r->rt_flags&RTF_HOST)) {
- u32 mask = ((struct sockaddr_in*)&r->rt_genmask)->sin_addr.s_addr;
- if (r->rt_genmask.sa_family != AF_INET) {
- if (mask || r->rt_genmask.sa_family)
- return -EAFNOSUPPORT;
- }
- if (bad_mask(mask, *ptr))
- return -EINVAL;
- plen = inet_mask_len(mask);
- }
-
- nl->nlmsg_flags = NLM_F_REQUEST;
- nl->nlmsg_pid = 0;
- nl->nlmsg_seq = 0;
- nl->nlmsg_len = NLMSG_LENGTH(sizeof(*rtm));
- if (cmd == SIOCDELRT) {
- nl->nlmsg_type = RTM_DELROUTE;
- nl->nlmsg_flags = 0;
- } else {
- nl->nlmsg_type = RTM_NEWROUTE;
- nl->nlmsg_flags = NLM_F_REQUEST|NLM_F_CREATE;
- rtm->rtm_protocol = RTPROT_BOOT;
- }