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 <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index e4695dd..114d1b74 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -835,11 +835,11 @@
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 @@
{
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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) */