diff options
Diffstat (limited to 'src/odhcpd.c')
| -rw-r--r-- | src/odhcpd.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/src/odhcpd.c b/src/odhcpd.c index 56f4498..c411542 100644 --- a/src/odhcpd.c +++ b/src/odhcpd.c @@ -221,7 +221,7 @@ int odhcpd_iterate_interface_neighbors(const struct interface *iface, struct ndmsg *ndm = NLMSG_DATA(nhm); if (ndm->ndm_ifindex != iface->ifindex || - (ndm->ndm_state & NUD_FAILED)) + !(ndm->ndm_state & (NUD_STALE | NUD_REACHABLE | NUD_PERMANENT))) continue; struct rtattr *rta = (struct rtattr*)&ndm[1]; @@ -329,6 +329,56 @@ int odhcpd_get_preferred_interface_address(int ifindex, struct in6_addr *addr) return ret; } +void odhcpd_setup_route(const struct in6_addr *addr, int prefixlen, + const struct interface *iface, const struct in6_addr *gw, + int metric, bool add) +{ + struct req { + struct nlmsghdr nh; + struct rtmsg rtm; + struct rtattr rta_dst; + struct in6_addr dst_addr; + struct rtattr rta_oif; + uint32_t ifindex; + struct rtattr rta_table; + uint32_t table; + struct rtattr rta_prio; + uint32_t prio; + struct rtattr rta_gw; + struct in6_addr gw; + } req = { + {sizeof(req), 0, NLM_F_REQUEST, ++rtnl_seq, 0}, + {AF_INET6, prefixlen, 0, 0, 0, 0, 0, 0, 0}, + {sizeof(struct rtattr) + sizeof(struct in6_addr), RTA_DST}, + *addr, + {sizeof(struct rtattr) + sizeof(uint32_t), RTA_OIF}, + iface->ifindex, + {sizeof(struct rtattr) + sizeof(uint32_t), RTA_TABLE}, + RT_TABLE_MAIN, + {sizeof(struct rtattr) + sizeof(uint32_t), RTA_PRIORITY}, + metric, + {sizeof(struct rtattr) + sizeof(struct in6_addr), RTA_GATEWAY}, + IN6ADDR_ANY_INIT, + }; + + if (gw) + req.gw = *gw; + + if (add) { + req.nh.nlmsg_type = RTM_NEWROUTE; + req.nh.nlmsg_flags |= (NLM_F_CREATE | NLM_F_REPLACE); + req.rtm.rtm_protocol = RTPROT_STATIC; + req.rtm.rtm_scope = (gw) ? RT_SCOPE_UNIVERSE : RT_SCOPE_LINK; + req.rtm.rtm_type = RTN_UNICAST; + } else { + req.nh.nlmsg_type = RTM_DELROUTE; + req.rtm.rtm_scope = RT_SCOPE_NOWHERE; + } + + req.nh.nlmsg_len = (gw) ? sizeof(req) : offsetof(struct req, rta_gw); + send(rtnl_socket, &req, req.nh.nlmsg_len, MSG_DONTWAIT); +} + struct interface* odhcpd_get_interface_by_index(int ifindex) { struct interface *iface; |