net: core: Support UID-based routing.
This contains the following commits:
1. 0149763 net: core: Add a UID range to fib rules.
2. 1650474 net: core: Use the socket UID in routing lookups.
3. 0b16771 net: ipv4: Add the UID to the route cache.
4. ee058f1 net: core: Add a RTA_UID attribute to routes.
This is so that userspace can do per-UID route lookups.
Bug: 15413527
Change-Id: I1285474c6734614d3bda6f61d88dfe89a4af7892
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Git-commit: 0b428749ce5969bc06c73855e360141b4e7126e8
Git-repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 19d66ce..b902d58 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -365,7 +365,8 @@
RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
sk->sk_protocol, inet_sk_flowi_flags(sk),
(opt && opt->opt.srr) ? opt->opt.faddr : ireq->rmt_addr,
- ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport);
+ ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport,
+ sock_i_uid(sk));
security_req_classify_flow(req, flowi4_to_flowi(fl4));
rt = ip_route_output_flow(net, fl4, sk);
if (IS_ERR(rt))
@@ -398,7 +399,8 @@
RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
sk->sk_protocol, inet_sk_flowi_flags(sk),
(opt && opt->opt.srr) ? opt->opt.faddr : ireq->rmt_addr,
- ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport);
+ ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport,
+ sock_i_uid(sk));
security_req_classify_flow(req, flowi4_to_flowi(fl4));
rt = ip_route_output_flow(net, fl4, sk);
if (IS_ERR(rt))