From 634fb979e8f3a70f04c1f2f519d0cd1142eb5c1a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 9 Oct 2013 15:21:29 -0700 Subject: inet: includes a sock_common in request_sock TCP listener refactoring, part 5 : We want to be able to insert request sockets (SYN_RECV) into main ehash table instead of the per listener hash table to allow RCU lookups and remove listener lock contention. This patch includes the needed struct sock_common in front of struct request_sock This means there is no more inet6_request_sock IPv6 specific structure. Following inet_request_sock fields were renamed as they became macros to reference fields from struct sock_common. Prefix ir_ was chosen to avoid name collisions. loc_port -> ir_loc_port loc_addr -> ir_loc_addr rmt_addr -> ir_rmt_addr rmt_port -> ir_rmt_port iif -> ir_iif Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/tcp_ipv4.c | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) (limited to 'net/ipv4/tcp_ipv4.c') diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index e4695dde1af6..114d1b748cbb 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -835,11 +835,11 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst, skb = tcp_make_synack(sk, dst, req, NULL); if (skb) { - __tcp_v4_send_check(skb, ireq->loc_addr, ireq->rmt_addr); + __tcp_v4_send_check(skb, ireq->ir_loc_addr, ireq->ir_rmt_addr); skb_set_queue_mapping(skb, queue_mapping); - err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr, - ireq->rmt_addr, + err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr, + ireq->ir_rmt_addr, ireq->opt); err = net_xmit_eval(err); if (!tcp_rsk(req)->snt_synack && !err) @@ -972,7 +972,7 @@ static struct tcp_md5sig_key *tcp_v4_reqsk_md5_lookup(struct sock *sk, { union tcp_md5_addr *addr; - addr = (union tcp_md5_addr *)&inet_rsk(req)->rmt_addr; + addr = (union tcp_md5_addr *)&inet_rsk(req)->ir_rmt_addr; return tcp_md5_do_lookup(sk, addr, AF_INET); } @@ -1149,8 +1149,8 @@ int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key, saddr = inet_sk(sk)->inet_saddr; daddr = inet_sk(sk)->inet_daddr; } else if (req) { - saddr = inet_rsk(req)->loc_addr; - daddr = inet_rsk(req)->rmt_addr; + saddr = inet_rsk(req)->ir_loc_addr; + daddr = inet_rsk(req)->ir_rmt_addr; } else { const struct iphdr *iph = ip_hdr(skb); saddr = iph->saddr; @@ -1366,8 +1366,8 @@ static int tcp_v4_conn_req_fastopen(struct sock *sk, kfree_skb(skb_synack); return -1; } - err = ip_build_and_send_pkt(skb_synack, sk, ireq->loc_addr, - ireq->rmt_addr, ireq->opt); + err = ip_build_and_send_pkt(skb_synack, sk, ireq->ir_loc_addr, + ireq->ir_rmt_addr, ireq->opt); err = net_xmit_eval(err); if (!err) tcp_rsk(req)->snt_synack = tcp_time_stamp; @@ -1502,8 +1502,8 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) tcp_openreq_init(req, &tmp_opt, skb); ireq = inet_rsk(req); - ireq->loc_addr = daddr; - ireq->rmt_addr = saddr; + ireq->ir_loc_addr = daddr; + ireq->ir_rmt_addr = saddr; ireq->no_srccheck = inet_sk(sk)->transparent; ireq->opt = tcp_v4_save_options(skb); @@ -1578,15 +1578,15 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) fastopen_cookie_present(&valid_foc) ? &valid_foc : NULL); if (skb_synack) { - __tcp_v4_send_check(skb_synack, ireq->loc_addr, ireq->rmt_addr); + __tcp_v4_send_check(skb_synack, ireq->ir_loc_addr, ireq->ir_rmt_addr); skb_set_queue_mapping(skb_synack, skb_get_queue_mapping(skb)); } else goto drop_and_free; if (likely(!do_fastopen)) { int err; - err = ip_build_and_send_pkt(skb_synack, sk, ireq->loc_addr, - ireq->rmt_addr, ireq->opt); + err = ip_build_and_send_pkt(skb_synack, sk, ireq->ir_loc_addr, + ireq->ir_rmt_addr, ireq->opt); err = net_xmit_eval(err); if (err || want_cookie) goto drop_and_free; @@ -1644,9 +1644,9 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb, newtp = tcp_sk(newsk); newinet = inet_sk(newsk); ireq = inet_rsk(req); - newinet->inet_daddr = ireq->rmt_addr; - newinet->inet_rcv_saddr = ireq->loc_addr; - newinet->inet_saddr = ireq->loc_addr; + newinet->inet_daddr = ireq->ir_rmt_addr; + newinet->inet_rcv_saddr = ireq->ir_loc_addr; + newinet->inet_saddr = ireq->ir_loc_addr; inet_opt = ireq->opt; rcu_assign_pointer(newinet->inet_opt, inet_opt); ireq->opt = NULL; @@ -2548,10 +2548,10 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req, seq_printf(f, "%4d: %08X:%04X %08X:%04X" " %02X %08X:%08X %02X:%08lX %08X %5u %8d %u %d %pK%n", i, - ireq->loc_addr, + ireq->ir_loc_addr, ntohs(inet_sk(sk)->inet_sport), - ireq->rmt_addr, - ntohs(ireq->rmt_port), + ireq->ir_rmt_addr, + ntohs(ireq->ir_rmt_port), TCP_SYN_RECV, 0, 0, /* could print option size, but that is af dependent. */ 1, /* timers active (only the expire timer) */ -- cgit v1.2.3