From 896b7ae69c33721d70837202257d3674d22fe465 Mon Sep 17 00:00:00 2001 From: Guillaume Nault Date: Fri, 30 Nov 2018 17:36:15 +0100 Subject: libnetlink: add gateway and priority parameters to ip6route_*() Let callers set a gateway and a priority to IPv6 routes. This is necessary for implementing the RADIUS Framed-IPv6-Route attribute. Also let ip6route_del() configure .rtm_protocol. This is already implemented in ip6route_add(), so we need to add the ip6route_del() counterpart. Otherwise, we couldn't delete routes that were added using a non-zero protocol. Signed-off-by: Guillaume Nault --- accel-pppd/libnetlink/iputils.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'accel-pppd/libnetlink/iputils.c') diff --git a/accel-pppd/libnetlink/iputils.c b/accel-pppd/libnetlink/iputils.c index ad6005f..343088f 100644 --- a/accel-pppd/libnetlink/iputils.c +++ b/accel-pppd/libnetlink/iputils.c @@ -540,7 +540,7 @@ int __export iproute_del(int ifindex, in_addr_t dst, int proto, int mask, uint32 return r; } -int __export ip6route_add(int ifindex, struct in6_addr *dst, int pref_len, int proto) +int __export ip6route_add(int ifindex, const struct in6_addr *dst, int pref_len, const struct in6_addr *gw, int proto, uint32_t prio) { struct ipaddr_req { struct nlmsghdr n; @@ -566,7 +566,12 @@ int __export ip6route_add(int ifindex, struct in6_addr *dst, int pref_len, int p req.i.rtm_dst_len = pref_len; addattr_l(&req.n, sizeof(req), RTA_DST, dst, sizeof(*dst)); - addattr32(&req.n, sizeof(req), RTA_OIF, ifindex); + if (ifindex) + addattr32(&req.n, sizeof(req), RTA_OIF, ifindex); + if (gw) + addattr_l(&req.n, sizeof(req), RTA_GATEWAY, gw, sizeof(*gw)); + if (prio) + addattr32(&req.n, sizeof(req), RTA_PRIORITY, prio); if (rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL, 0) < 0) r = -1; @@ -576,7 +581,7 @@ int __export ip6route_add(int ifindex, struct in6_addr *dst, int pref_len, int p return r; } -int __export ip6route_del(int ifindex, struct in6_addr *dst, int pref_len) +int __export ip6route_del(int ifindex, const struct in6_addr *dst, int pref_len, const struct in6_addr *gw, int proto, uint32_t prio) { struct ipaddr_req { struct nlmsghdr n; @@ -597,10 +602,17 @@ int __export ip6route_del(int ifindex, struct in6_addr *dst, int pref_len) req.i.rtm_family = AF_INET6; req.i.rtm_table = RT_TABLE_MAIN; req.i.rtm_scope = (pref_len == 128) ? RT_SCOPE_HOST : RT_SCOPE_LINK; + req.i.rtm_protocol = proto; req.i.rtm_type = RTN_UNICAST; req.i.rtm_dst_len = pref_len; addattr_l(&req.n, sizeof(req), RTA_DST, dst, sizeof(*dst)); + if (ifindex) + addattr32(&req.n, sizeof(req), RTA_OIF, ifindex); + if (gw) + addattr_l(&req.n, sizeof(req), RTA_GATEWAY, gw, sizeof(*gw)); + if (prio) + addattr32(&req.n, sizeof(req), RTA_PRIORITY, prio); if (rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL, 0) < 0) r = -1; -- cgit v1.2.3