summaryrefslogtreecommitdiffstats
path: root/net/ipv4/tcp_minisocks.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4/tcp_minisocks.c')
-rw-r--r--net/ipv4/tcp_minisocks.c37
1 files changed, 19 insertions, 18 deletions
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 550e755..b85d9fe 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -55,7 +55,7 @@ EXPORT_SYMBOL_GPL(tcp_death_row);
* state.
*/
-static int tcp_remember_stamp(struct sock *sk)
+static bool tcp_remember_stamp(struct sock *sk)
{
const struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_sock *tp = tcp_sk(sk);
@@ -72,13 +72,13 @@ static int tcp_remember_stamp(struct sock *sk)
}
if (release_it)
inet_putpeer(peer);
- return 1;
+ return true;
}
- return 0;
+ return false;
}
-static int tcp_tw_remember_stamp(struct inet_timewait_sock *tw)
+static bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw)
{
struct sock *sk = (struct sock *) tw;
struct inet_peer *peer;
@@ -94,17 +94,17 @@ static int tcp_tw_remember_stamp(struct inet_timewait_sock *tw)
peer->tcp_ts = tcptw->tw_ts_recent;
}
inet_putpeer(peer);
- return 1;
+ return true;
}
- return 0;
+ return false;
}
-static __inline__ int tcp_in_window(u32 seq, u32 end_seq, u32 s_win, u32 e_win)
+static bool tcp_in_window(u32 seq, u32 end_seq, u32 s_win, u32 e_win)
{
if (seq == s_win)
- return 1;
+ return true;
if (after(end_seq, s_win) && before(seq, e_win))
- return 1;
+ return true;
return seq == e_win && seq == end_seq;
}
@@ -143,7 +143,7 @@ tcp_timewait_state_process(struct inet_timewait_sock *tw, struct sk_buff *skb,
struct tcp_options_received tmp_opt;
const u8 *hash_location;
struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw);
- int paws_reject = 0;
+ bool paws_reject = false;
tmp_opt.saw_tstamp = 0;
if (th->doff > (sizeof(*th) >> 2) && tcptw->tw_ts_recent_stamp) {
@@ -316,7 +316,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
struct inet_timewait_sock *tw = NULL;
const struct inet_connection_sock *icsk = inet_csk(sk);
const struct tcp_sock *tp = tcp_sk(sk);
- int recycle_ok = 0;
+ bool recycle_ok = false;
if (tcp_death_row.sysctl_tw_recycle && tp->rx_opt.ts_recent_stamp)
recycle_ok = tcp_remember_stamp(sk);
@@ -359,13 +359,11 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
*/
do {
struct tcp_md5sig_key *key;
- memset(tcptw->tw_md5_key, 0, sizeof(tcptw->tw_md5_key));
- tcptw->tw_md5_keylen = 0;
+ tcptw->tw_md5_key = NULL;
key = tp->af_specific->md5_lookup(sk, sk);
if (key != NULL) {
- memcpy(&tcptw->tw_md5_key, key->key, key->keylen);
- tcptw->tw_md5_keylen = key->keylen;
- if (tcp_alloc_md5sig_pool(sk) == NULL)
+ tcptw->tw_md5_key = kmemdup(key, sizeof(*key), GFP_ATOMIC);
+ if (tcptw->tw_md5_key && tcp_alloc_md5sig_pool(sk) == NULL)
BUG();
}
} while (0);
@@ -405,8 +403,10 @@ void tcp_twsk_destructor(struct sock *sk)
{
#ifdef CONFIG_TCP_MD5SIG
struct tcp_timewait_sock *twsk = tcp_twsk(sk);
- if (twsk->tw_md5_keylen)
+ if (twsk->tw_md5_key) {
tcp_free_md5sig_pool();
+ kfree_rcu(twsk->tw_md5_key, rcu);
+ }
#endif
}
EXPORT_SYMBOL_GPL(tcp_twsk_destructor);
@@ -482,6 +482,7 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
newtp->sacked_out = 0;
newtp->fackets_out = 0;
newtp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
+ tcp_enable_early_retrans(newtp);
/* So many TCP implementations out there (incorrectly) count the
* initial SYN frame in their delayed-ACK and congestion control
@@ -574,7 +575,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
struct sock *child;
const struct tcphdr *th = tcp_hdr(skb);
__be32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK);
- int paws_reject = 0;
+ bool paws_reject = false;
tmp_opt.saw_tstamp = 0;
if (th->doff > (sizeof(struct tcphdr)>>2)) {
OpenPOWER on IntegriCloud