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authorDavid Ahern <dsa@cumulusnetworks.com>2015-08-13 14:59:04 -0600
committerDavid S. Miller <davem@davemloft.net>2015-08-13 22:43:21 -0700
commit15be405eb2ea943ac5fa2aab7d0ba282e9ef1301 (patch)
treebcdc029fecccc34ab742c78f5ad393035bdb8672 /net/ipv4/fib_frontend.c
parent9a24abfa42613fefc68963a98c2b7ab7fd7e374c (diff)
downloadblackbird-op-linux-15be405eb2ea943ac5fa2aab7d0ba282e9ef1301.tar.gz
blackbird-op-linux-15be405eb2ea943ac5fa2aab7d0ba282e9ef1301.zip
net: Add inet_addr lookup by table
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. Signed-off-by: Shrijeet Mukherjee <shm@cumulusnetworks.com> Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_frontend.c')
-rw-r--r--net/ipv4/fib_frontend.c22
1 files changed, 15 insertions, 7 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index d8ced1d89f1b..b11321a8e58d 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -212,12 +212,12 @@ void fib_flush_external(struct net *net)
*/
static inline unsigned int __inet_dev_addr_type(struct net *net,
const struct net_device *dev,
- __be32 addr)
+ __be32 addr, int tb_id)
{
struct flowi4 fl4 = { .daddr = addr };
struct fib_result res;
unsigned int ret = RTN_BROADCAST;
- struct fib_table *local_table;
+ struct fib_table *table;
if (ipv4_is_zeronet(addr) || ipv4_is_lbcast(addr))
return RTN_BROADCAST;
@@ -226,10 +226,10 @@ static inline unsigned int __inet_dev_addr_type(struct net *net,
rcu_read_lock();
- local_table = fib_get_table(net, RT_TABLE_LOCAL);
- if (local_table) {
+ table = fib_get_table(net, tb_id);
+ if (table) {
ret = RTN_UNICAST;
- if (!fib_table_lookup(local_table, &fl4, &res, FIB_LOOKUP_NOREF)) {
+ if (!fib_table_lookup(table, &fl4, &res, FIB_LOOKUP_NOREF)) {
if (!dev || dev == res.fi->fib_dev)
ret = res.type;
}
@@ -239,16 +239,24 @@ static inline unsigned int __inet_dev_addr_type(struct net *net,
return ret;
}
+unsigned int inet_addr_type_table(struct net *net, __be32 addr, int tb_id)
+{
+ return __inet_dev_addr_type(net, NULL, addr, tb_id);
+}
+EXPORT_SYMBOL(inet_addr_type_table);
+
unsigned int inet_addr_type(struct net *net, __be32 addr)
{
- return __inet_dev_addr_type(net, NULL, addr);
+ return __inet_dev_addr_type(net, NULL, addr, RT_TABLE_LOCAL);
}
EXPORT_SYMBOL(inet_addr_type);
unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,
__be32 addr)
{
- return __inet_dev_addr_type(net, dev, addr);
+ int rt_table = vrf_dev_table(dev) ? : RT_TABLE_LOCAL;
+
+ return __inet_dev_addr_type(net, dev, addr, rt_table);
}
EXPORT_SYMBOL(inet_dev_addr_type);
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