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Diffstat (limited to 'net/ipv6/route.c')
-rw-r--r--net/ipv6/route.c79
1 files changed, 42 insertions, 37 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 3bf8a0254f81..878789b3122d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -384,12 +384,13 @@ struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr,
be destroyed.
*/
-int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh,
+ void *_rtattr, struct netlink_skb_parms *req)
{
int err;
write_lock_bh(&rt6_lock);
- err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr);
+ err = fib6_add(&ip6_routing_table, rt, nlh, _rtattr, req);
write_unlock_bh(&rt6_lock);
return err;
@@ -400,7 +401,7 @@ int ip6_ins_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
*/
static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
- struct in6_addr *saddr)
+ struct in6_addr *saddr, struct netlink_skb_parms *req)
{
int err;
struct rt6_info *rt;
@@ -432,7 +433,7 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
dst_hold(&rt->u.dst);
- err = ip6_ins_rt(rt, NULL, NULL);
+ err = ip6_ins_rt(rt, NULL, NULL, req);
if (err == 0)
return rt;
@@ -491,7 +492,8 @@ restart:
read_unlock_bh(&rt6_lock);
nrt = rt6_cow(rt, &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr);
+ &skb->nh.ipv6h->saddr,
+ &NETLINK_CB(skb));
dst_release(&rt->u.dst);
rt = nrt;
@@ -551,7 +553,7 @@ restart:
dst_hold(&rt->u.dst);
read_unlock_bh(&rt6_lock);
- nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src);
+ nrt = rt6_cow(rt, &fl->fl6_dst, &fl->fl6_src, NULL);
dst_release(&rt->u.dst);
rt = nrt;
@@ -598,7 +600,7 @@ static struct dst_entry *ip6_negative_advice(struct dst_entry *dst)
if (rt) {
if (rt->rt6i_flags & RTF_CACHE)
- ip6_del_rt(rt, NULL, NULL);
+ ip6_del_rt(rt, NULL, NULL, NULL);
else
dst_release(dst);
}
@@ -787,7 +789,8 @@ int ipv6_get_hoplimit(struct net_device *dev)
*
*/
-int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_route_add(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh,
+ void *_rtattr, struct netlink_skb_parms *req)
{
int err;
struct rtmsg *r;
@@ -974,7 +977,7 @@ install_route:
rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&rt->u.dst));
rt->u.dst.dev = dev;
rt->rt6i_idev = idev;
- return ip6_ins_rt(rt, nlh, _rtattr);
+ return ip6_ins_rt(rt, nlh, _rtattr, req);
out:
if (dev)
@@ -986,7 +989,7 @@ out:
return err;
}
-int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
+int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
{
int err;
@@ -994,7 +997,7 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
rt6_reset_dflt_pointer(NULL);
- err = fib6_del(rt, nlh, _rtattr);
+ err = fib6_del(rt, nlh, _rtattr, req);
dst_release(&rt->u.dst);
write_unlock_bh(&rt6_lock);
@@ -1002,7 +1005,7 @@ int ip6_del_rt(struct rt6_info *rt, struct nlmsghdr *nlh, void *_rtattr)
return err;
}
-static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr)
+static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_rtattr, struct netlink_skb_parms *req)
{
struct fib6_node *fn;
struct rt6_info *rt;
@@ -1029,7 +1032,7 @@ static int ip6_route_del(struct in6_rtmsg *rtmsg, struct nlmsghdr *nlh, void *_r
dst_hold(&rt->u.dst);
read_unlock_bh(&rt6_lock);
- return ip6_del_rt(rt, nlh, _rtattr);
+ return ip6_del_rt(rt, nlh, _rtattr, req);
}
}
read_unlock_bh(&rt6_lock);
@@ -1136,11 +1139,11 @@ source_ok:
nrt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(neigh->dev);
nrt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dst_mtu(&nrt->u.dst));
- if (ip6_ins_rt(nrt, NULL, NULL))
+ if (ip6_ins_rt(nrt, NULL, NULL, NULL))
goto out;
if (rt->rt6i_flags&RTF_CACHE) {
- ip6_del_rt(rt, NULL, NULL);
+ ip6_del_rt(rt, NULL, NULL, NULL);
return;
}
@@ -1204,7 +1207,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
2. It is gatewayed route or NONEXTHOP route. Action: clone it.
*/
if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
- nrt = rt6_cow(rt, daddr, saddr);
+ nrt = rt6_cow(rt, daddr, saddr, NULL);
if (!nrt->u.dst.error) {
nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
if (allfrag)
@@ -1232,7 +1235,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
if (allfrag)
nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
- ip6_ins_rt(nrt, NULL, NULL);
+ ip6_ins_rt(nrt, NULL, NULL, NULL);
}
out:
@@ -1305,7 +1308,7 @@ struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
rtmsg.rtmsg_ifindex = dev->ifindex;
- ip6_route_add(&rtmsg, NULL, NULL);
+ ip6_route_add(&rtmsg, NULL, NULL, NULL);
return rt6_get_dflt_router(gwaddr, dev);
}
@@ -1323,7 +1326,7 @@ restart:
read_unlock_bh(&rt6_lock);
- ip6_del_rt(rt, NULL, NULL);
+ ip6_del_rt(rt, NULL, NULL, NULL);
goto restart;
}
@@ -1349,10 +1352,10 @@ int ipv6_route_ioctl(unsigned int cmd, void __user *arg)
rtnl_lock();
switch (cmd) {
case SIOCADDRT:
- err = ip6_route_add(&rtmsg, NULL, NULL);
+ err = ip6_route_add(&rtmsg, NULL, NULL, NULL);
break;
case SIOCDELRT:
- err = ip6_route_del(&rtmsg, NULL, NULL);
+ err = ip6_route_del(&rtmsg, NULL, NULL, NULL);
break;
default:
err = -EINVAL;
@@ -1546,7 +1549,7 @@ int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
return -EINVAL;
- return ip6_route_del(&rtmsg, nlh, arg);
+ return ip6_route_del(&rtmsg, nlh, arg, &NETLINK_CB(skb));
}
int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
@@ -1556,7 +1559,7 @@ int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (inet6_rtm_to_rtmsg(r, arg, &rtmsg))
return -EINVAL;
- return ip6_route_add(&rtmsg, nlh, arg);
+ return ip6_route_add(&rtmsg, nlh, arg, &NETLINK_CB(skb));
}
struct rt6_rtnl_dump_arg
@@ -1566,11 +1569,9 @@ struct rt6_rtnl_dump_arg
};
static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
- struct in6_addr *dst,
- struct in6_addr *src,
- int iif,
- int type, u32 pid, u32 seq,
- struct nlmsghdr *in_nlh, int prefix)
+ struct in6_addr *dst, struct in6_addr *src,
+ int iif, int type, u32 pid, u32 seq,
+ int prefix, unsigned int flags)
{
struct rtmsg *rtm;
struct nlmsghdr *nlh;
@@ -1584,11 +1585,7 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
}
}
- if (!pid && in_nlh) {
- pid = in_nlh->nlmsg_pid;
- }
-
- nlh = NLMSG_PUT(skb, pid, seq, type, sizeof(*rtm));
+ nlh = NLMSG_NEW(skb, pid, seq, type, sizeof(*rtm), flags);
rtm = NLMSG_DATA(nlh);
rtm->rtm_family = AF_INET6;
rtm->rtm_dst_len = rt->rt6i_dst.plen;
@@ -1674,7 +1671,7 @@ static int rt6_dump_route(struct rt6_info *rt, void *p_arg)
return rt6_fill_node(arg->skb, rt, NULL, NULL, 0, RTM_NEWROUTE,
NETLINK_CB(arg->cb->skb).pid, arg->cb->nlh->nlmsg_seq,
- NULL, prefix);
+ prefix, NLM_F_MULTI);
}
static int fib6_dump_node(struct fib6_walker_t *w)
@@ -1822,7 +1819,7 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
&fl.fl6_dst, &fl.fl6_src,
iif,
RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
- nlh->nlmsg_seq, nlh, 0);
+ nlh->nlmsg_seq, 0, 0);
if (err < 0) {
err = -EMSGSIZE;
goto out_free;
@@ -1838,17 +1835,25 @@ out_free:
goto out;
}
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh)
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh,
+ struct netlink_skb_parms *req)
{
struct sk_buff *skb;
int size = NLMSG_SPACE(sizeof(struct rtmsg)+256);
+ u32 pid = current->pid;
+ u32 seq = 0;
+ if (req)
+ pid = req->pid;
+ if (nlh)
+ seq = nlh->nlmsg_seq;
+
skb = alloc_skb(size, gfp_any());
if (!skb) {
netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, ENOBUFS);
return;
}
- if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, 0, 0, nlh, 0) < 0) {
+ if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, pid, seq, 0, 0) < 0) {
kfree_skb(skb);
netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, EINVAL);
return;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 22:01:20 +0000