From 7bc54c90307b4bc3d7fb2ffd6ad8fbda0671a45e Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Mon, 19 Nov 2007 22:35:07 -0800 Subject: [IPv4] RAW: Compact the API for the kernel The raw sockets functions are explicitly used from inside the kernel in two places: 1. in ip_local_deliver_finish to intercept skb-s 2. in icmp_error For this purposes many functions and even data structures, that are naturally internal for raw protocol, are exported. Compact the API to two functions and hide all the other (including hash table and rwlock) inside the net/ipv4/raw.c Signed-off-by: Pavel Emelyanov Signed-off-by: David S. Miller --- net/ipv4/ip_input.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) (limited to 'net/ipv4/ip_input.c') diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 4068e178d747..65631391d479 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -204,22 +204,14 @@ static int ip_local_deliver_finish(struct sk_buff *skb) rcu_read_lock(); { - /* Note: See raw.c and net/raw.h, RAWV4_HTABLE_SIZE==MAX_INET_PROTOS */ int protocol = ip_hdr(skb)->protocol; - int hash; - struct sock *raw_sk; + int hash, raw; struct net_protocol *ipprot; resubmit: - hash = protocol & (MAX_INET_PROTOS - 1); - raw_sk = sk_head(&raw_v4_htable[hash]); - - /* If there maybe a raw socket we must check - if not we - * don't care less - */ - if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash)) - raw_sk = NULL; + raw = raw_local_deliver(skb, protocol); + hash = protocol & (MAX_INET_PROTOS - 1); if ((ipprot = rcu_dereference(inet_protos[hash])) != NULL) { int ret; @@ -237,7 +229,7 @@ static int ip_local_deliver_finish(struct sk_buff *skb) } IP_INC_STATS_BH(IPSTATS_MIB_INDELIVERS); } else { - if (!raw_sk) { + if (!raw) { if (xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb)) { IP_INC_STATS_BH(IPSTATS_MIB_INUNKNOWNPROTOS); icmp_send(skb, ICMP_DEST_UNREACH, -- cgit v1.2.3