net: Add support for VRFs to inetpeer cache
inetpeer caches based on address only, so duplicate IP addresses within
a namespace return the same cached entry. Enhance the ipv4 address key
to contain both the IPv4 address and VRF device index.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index e34f98a..4a6009d 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -15,11 +15,17 @@
#include <net/ipv6.h>
#include <linux/atomic.h>
+/* IPv4 address key for cache lookups */
+struct ipv4_addr_key {
+ __be32 addr;
+ int vif;
+};
+
#define INETPEER_MAXKEYSZ (sizeof(struct in6_addr) / sizeof(u32))
struct inetpeer_addr {
union {
- __be32 a4;
+ struct ipv4_addr_key a4;
struct in6_addr a6;
u32 key[INETPEER_MAXKEYSZ];
};
@@ -71,13 +77,13 @@
static inline void inetpeer_set_addr_v4(struct inetpeer_addr *iaddr, __be32 ip)
{
- iaddr->a4 = ip;
+ iaddr->a4.addr = ip;
iaddr->family = AF_INET;
}
static inline __be32 inetpeer_get_addr_v4(struct inetpeer_addr *iaddr)
{
- return iaddr->a4;
+ return iaddr->a4.addr;
}
static inline void inetpeer_set_addr_v6(struct inetpeer_addr *iaddr,
@@ -99,11 +105,12 @@
static inline struct inet_peer *inet_getpeer_v4(struct inet_peer_base *base,
__be32 v4daddr,
- int create)
+ int vif, int create)
{
struct inetpeer_addr daddr;
- daddr.a4 = v4daddr;
+ daddr.a4.addr = v4daddr;
+ daddr.a4.vif = vif;
daddr.family = AF_INET;
return inet_getpeer(base, &daddr, create);
}