A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

Browse source 
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  tcp: Revert 'process defer accept as established' changes.
  ipv6: Fix duplicate initialization of rawv6_prot.destroy
  bnx2x: Updating the Maintainer
  net: Eliminate flush_scheduled_work() calls while RTNL is held.
  drivers/net/r6040.c: correct bad use of round_jiffies()
  fec_mpc52xx: MPC52xx_MESSAGES_DEFAULT: 2nd NETIF_MSG_IFDOWN => IFUP
  ipg: fix receivemode IPG_RM_RECEIVEMULTICAST{,HASH} in ipg_nic_set_multicast_list()
  netfilter: nf_conntrack: fix ctnetlink related crash in nf_nat_setup_info()
  netfilter: Make nflog quiet when no one listen in userspace.
  ipv6: Fail with appropriate error code when setting not-applicable sockopt.
  ipv6: Check IPV6_MULTICAST_LOOP option value.
  ipv6: Check the hop limit setting in ancillary data.
  ipv6 route: Fix route lifetime in netlink message.
  ipv6 mcast: Check address family of gf_group in getsockopt(MS_FILTER).
  dccp: Bug in initial acknowledgment number assignment
  dccp ccid-3: X truncated due to type conversion
  dccp ccid-3: TFRC reverse-lookup Bug-Fix
  dccp ccid-2: Bug-Fix - Ack Vectors need to be ignored on request sockets
  dccp: Fix sparse warnings
  dccp ccid-3: Bug-Fix - Zero RTT is possible
This commit is contained in:
Linus Torvalds 2008-06-13 07:34:47 -07:00
commit 51558576ea
40 changed files with 130 additions and 228 deletions
Download patch file Download diff file Expand all files Collapse all files

11
net/ipv4/inet_connection_sock.c
View file

@ -419,7 +419,8 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
struct inet_connection_sock *icsk = inet_csk(parent);
struct request_sock_queue *queue = &icsk->icsk_accept_queue;
struct listen_sock *lopt = queue->listen_opt;
int thresh = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
int max_retries = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries;
int thresh = max_retries;
unsigned long now = jiffies;
struct request_sock **reqp, *req;
int i, budget;
@ -455,6 +456,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
}
}
if (queue->rskq_defer_accept)
max_retries = queue->rskq_defer_accept;
budget = 2 * (lopt->nr_table_entries / (timeout / interval));
i = lopt->clock_hand;
@ -462,8 +466,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
reqp=&lopt->syn_table[i];
while ((req = *reqp) != NULL) {
if (time_after_eq(now, req->expires)) {
if (req->retrans < thresh &&
!req->rsk_ops->rtx_syn_ack(parent, req)) {
if ((req->retrans < (inet_rsk(req)->acked ? max_retries : thresh)) &&
(inet_rsk(req)->acked ||
!req->rsk_ops->rtx_syn_ack(parent, req))) {
unsigned long timeo;
if (req->retrans++ == 0)

18
net/ipv4/tcp.c
View file

@ -2112,12 +2112,15 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
break;
case TCP_DEFER_ACCEPT:
if (val < 0) {
err = -EINVAL;
} else {
if (val > MAX_TCP_ACCEPT_DEFERRED)
val = MAX_TCP_ACCEPT_DEFERRED;
icsk->icsk_accept_queue.rskq_defer_accept = val;
icsk->icsk_accept_queue.rskq_defer_accept = 0;
if (val > 0) {
/* Translate value in seconds to number of
* retransmits */
while (icsk->icsk_accept_queue.rskq_defer_accept < 32 &&
val > ((TCP_TIMEOUT_INIT / HZ) <<
icsk->icsk_accept_queue.rskq_defer_accept))
icsk->icsk_accept_queue.rskq_defer_accept++;
icsk->icsk_accept_queue.rskq_defer_accept++;
}
break;
@ -2299,7 +2302,8 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
val = (val ? : sysctl_tcp_fin_timeout) / HZ;
break;
case TCP_DEFER_ACCEPT:
val = icsk->icsk_accept_queue.rskq_defer_accept;
val = !icsk->icsk_accept_queue.rskq_defer_accept ? 0 :
((TCP_TIMEOUT_INIT / HZ) << (icsk->icsk_accept_queue.rskq_defer_accept - 1));
break;
case TCP_WINDOW_CLAMP:
val = tp->window_clamp;

45
net/ipv4/tcp_input.c
View file

@ -4541,49 +4541,6 @@ static void tcp_urg(struct sock *sk, struct sk_buff *skb, struct tcphdr *th)
}
}
static int tcp_defer_accept_check(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
if (tp->defer_tcp_accept.request) {
int queued_data = tp->rcv_nxt - tp->copied_seq;
int hasfin = !skb_queue_empty(&sk->sk_receive_queue) ?
tcp_hdr((struct sk_buff *)
sk->sk_receive_queue.prev)->fin : 0;
if (queued_data && hasfin)
queued_data--;
if (queued_data &&
tp->defer_tcp_accept.listen_sk->sk_state == TCP_LISTEN) {
if (sock_flag(sk, SOCK_KEEPOPEN)) {
inet_csk_reset_keepalive_timer(sk,
keepalive_time_when(tp));
} else {
inet_csk_delete_keepalive_timer(sk);
}
inet_csk_reqsk_queue_add(
tp->defer_tcp_accept.listen_sk,
tp->defer_tcp_accept.request,
sk);
tp->defer_tcp_accept.listen_sk->sk_data_ready(
tp->defer_tcp_accept.listen_sk, 0);
sock_put(tp->defer_tcp_accept.listen_sk);
sock_put(sk);
tp->defer_tcp_accept.listen_sk = NULL;
tp->defer_tcp_accept.request = NULL;
} else if (hasfin ||
tp->defer_tcp_accept.listen_sk->sk_state != TCP_LISTEN) {
tcp_reset(sk);
return -1;
}
}
return 0;
}
static int tcp_copy_to_iovec(struct sock *sk, struct sk_buff *skb, int hlen)
{
struct tcp_sock *tp = tcp_sk(sk);
@ -4944,8 +4901,6 @@ step5:
tcp_data_snd_check(sk);
tcp_ack_snd_check(sk);
tcp_defer_accept_check(sk);
return 0;
csum_error:

8
net/ipv4/tcp_ipv4.c
View file

@ -1918,14 +1918,6 @@ int tcp_v4_destroy_sock(struct sock *sk)
sk->sk_sndmsg_page = NULL;
}
if (tp->defer_tcp_accept.request) {
reqsk_free(tp->defer_tcp_accept.request);
sock_put(tp->defer_tcp_accept.listen_sk);
sock_put(sk);
tp->defer_tcp_accept.listen_sk = NULL;
tp->defer_tcp_accept.request = NULL;
}
atomic_dec(&tcp_sockets_allocated);
return 0;

32
net/ipv4/tcp_minisocks.c
View file

@ -571,8 +571,10 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
does sequence test, SYN is truncated, and thus we consider
it a bare ACK.
Both ends (listening sockets) accept the new incoming
connection and try to talk to each other. 8-)
If icsk->icsk_accept_queue.rskq_defer_accept, we silently drop this
bare ACK. Otherwise, we create an established connection. Both
ends (listening sockets) accept the new incoming connection and try
to talk to each other. 8-)
Note: This case is both harmless, and rare. Possibility is about the
same as us discovering intelligent life on another plant tomorrow.
@ -640,6 +642,13 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
if (!(flg & TCP_FLAG_ACK))
return NULL;
/* If TCP_DEFER_ACCEPT is set, drop bare ACK. */
if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
inet_rsk(req)->acked = 1;
return NULL;
}
/* OK, ACK is valid, create big socket and
* feed this segment to it. It will repeat all
* the tests. THIS SEGMENT MUST MOVE SOCKET TO
@ -678,24 +687,7 @@ struct sock *tcp_check_req(struct sock *sk,struct sk_buff *skb,
inet_csk_reqsk_queue_unlink(sk, req, prev);
inet_csk_reqsk_queue_removed(sk, req);
if (inet_csk(sk)->icsk_accept_queue.rskq_defer_accept &&
TCP_SKB_CB(skb)->end_seq == tcp_rsk(req)->rcv_isn + 1) {
/* the accept queue handling is done is est recv slow
* path so lets make sure to start there
*/
tcp_sk(child)->pred_flags = 0;
sock_hold(sk);
sock_hold(child);
tcp_sk(child)->defer_tcp_accept.listen_sk = sk;
tcp_sk(child)->defer_tcp_accept.request = req;
inet_csk_reset_keepalive_timer(child,
inet_csk(sk)->icsk_accept_queue.rskq_defer_accept * HZ);
} else {
inet_csk_reqsk_queue_add(sk, req, child);
}
inet_csk_reqsk_queue_add(sk, req, child);
return child;
listen_overflow:

5
net/ipv4/tcp_timer.c
View file

@ -489,11 +489,6 @@ static void tcp_keepalive_timer (unsigned long data)
goto death;
}
if (tp->defer_tcp_accept.request && sk->sk_state == TCP_ESTABLISHED) {
tcp_send_active_reset(sk, GFP_ATOMIC);
goto death;
}
if (!sock_flag(sk, SOCK_KEEPOPEN) || sk->sk_state == TCP_CLOSE)
goto out;