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authorDavid Ahern <dsa@cumulusnetworks.com>2015-08-13 23:59:05 +0300
committerDavid S. Miller <davem@davemloft.net>2015-08-14 08:43:21 +0300
commit30bbaa19500559d7625c65632195413f639b3b97 (patch)
treef5514050b984975047c683c6a3972c09ff251b97 /net/ipv4/af_inet.c
parent15be405eb2ea943ac5fa2aab7d0ba282e9ef1301 (diff)
downloadlinux-30bbaa19500559d7625c65632195413f639b3b97.tar.xz
net: Fix up inet_addr_type checks
Currently inet_addr_type and inet_dev_addr_type expect local addresses to be in the local table. With the VRF device local routes for devices associated with a VRF will be in the table associated with the VRF. Provide an alternate inet_addr lookup to use a specific table rather than defaulting to the local table. inet_addr_type_dev_table keeps the same semantics as inet_addr_type but if the passed in device is enslaved to a VRF then the table for that VRF is used for the lookup. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
-rw-r--r--net/ipv4/af_inet.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index cc4e498a0ccf..c8b855882fa5 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -119,6 +119,7 @@
#ifdef CONFIG_IP_MROUTE
#include <linux/mroute.h>
#endif
+#include <net/vrf.h>
/* The inetsw table contains everything that inet_create needs to
@@ -427,6 +428,7 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
struct net *net = sock_net(sk);
unsigned short snum;
int chk_addr_ret;
+ int tb_id = RT_TABLE_LOCAL;
int err;
/* If the socket has its own bind function then use it. (RAW) */
@@ -448,7 +450,16 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
goto out;
}
- chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
+ if (sk->sk_bound_dev_if) {
+ struct net_device *dev;
+
+ rcu_read_lock();
+ dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if);
+ if (dev)
+ tb_id = vrf_dev_table_rcu(dev) ? : tb_id;
+ rcu_read_unlock();
+ }
+ chk_addr_ret = inet_addr_type_table(net, addr->sin_addr.s_addr, tb_id);
/* Not specified by any standard per-se, however it breaks too
* many applications when removed. It is unfortunate since