inet_diag: Introduce the byte-code run on an inet socket
The upcoming UDP module will require exactly this ability, so just
move the existing code to provide one.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index f50df2e..08e5498 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -449,6 +449,35 @@
return len == 0;
}
+int inet_diag_bc_sk(const struct nlattr *bc, struct sock *sk)
+{
+ struct inet_diag_entry entry;
+ struct inet_sock *inet = inet_sk(sk);
+
+ if (bc == NULL)
+ return 1;
+
+ entry.family = sk->sk_family;
+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
+ if (entry.family == AF_INET6) {
+ struct ipv6_pinfo *np = inet6_sk(sk);
+
+ entry.saddr = np->rcv_saddr.s6_addr32;
+ entry.daddr = np->daddr.s6_addr32;
+ } else
+#endif
+ {
+ entry.saddr = &inet->inet_rcv_saddr;
+ entry.daddr = &inet->inet_daddr;
+ }
+ entry.sport = inet->inet_num;
+ entry.dport = ntohs(inet->inet_dport);
+ entry.userlocks = sk->sk_userlocks;
+
+ return inet_diag_bc_run(bc, &entry);
+}
+EXPORT_SYMBOL_GPL(inet_diag_bc_sk);
+
static int valid_cc(const void *bc, int len, int cc)
{
while (len >= 0) {
@@ -509,30 +538,8 @@
struct inet_diag_req *r,
const struct nlattr *bc)
{
- if (bc != NULL) {
- struct inet_diag_entry entry;
- struct inet_sock *inet = inet_sk(sk);
-
- entry.family = sk->sk_family;
-#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
- if (entry.family == AF_INET6) {
- struct ipv6_pinfo *np = inet6_sk(sk);
-
- entry.saddr = np->rcv_saddr.s6_addr32;
- entry.daddr = np->daddr.s6_addr32;
- } else
-#endif
- {
- entry.saddr = &inet->inet_rcv_saddr;
- entry.daddr = &inet->inet_daddr;
- }
- entry.sport = inet->inet_num;
- entry.dport = ntohs(inet->inet_dport);
- entry.userlocks = sk->sk_userlocks;
-
- if (!inet_diag_bc_run(bc, &entry))
- return 0;
- }
+ if (!inet_diag_bc_sk(bc, sk))
+ return 0;
return inet_csk_diag_fill(sk, skb, r,
NETLINK_CB(cb->skb).pid,