Wei Dong
8488df894d
[NET]: Fix bugs in "Whether sock accept queue is full" checking ...
when I use linux TCP socket, and find there is a bug in function
sk_acceptq_is_full().
When a new SYN comes, TCP module first checks its validation. If valid,
send SYN,ACK to the client and add the sock to the syn hash table. Next
time if received the valid ACK for SYN,ACK from the client. server will
accept this connection and increase the sk->sk_ack_backlog -- which is
done in function tcp_check_req().We check wether acceptq is full in
function tcp_v4_syn_recv_sock().
Consider an example:
After listen(sockfd, 1) system call, sk->sk_max_ack_backlog is set to
1. As we know, sk->sk_ack_backlog is initialized to 0. Assuming accept()
system call is not invoked now.
1. 1st connection comes. invoke sk_acceptq_is_full(). sk-
>sk_ack_backlog=0 sk->sk_max_ack_backlog=1, function return 0 accept
this connection. Increase the sk->sk_ack_backlog
2. 2nd connection comes. invoke sk_acceptq_is_full(). sk-
>sk_ack_backlog=1 sk->sk_max_ack_backlog=1, function return 0 accept
this connection. Increase the sk->sk_ack_backlog
3. 3rd connection comes. invoke sk_acceptq_is_full(). sk-
>sk_ack_backlog=2 sk->sk_max_ack_backlog=1, function return 1. Refuse
this connection.
I think it has bugs. after listen system call. sk->sk_max_ack_backlog=1
but now it can accept 2 connections.
Signed-off-by: Wei Dong <weid@np.css.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-02 20:37:33 -08:00
[PATCH] hci endianness annotations
2006-12-13 09:05:52 -08:00
[IRDA] net/irda/: proper prototypes
2007-02-26 11:42:43 -08:00
[S390]: Add AF_IUCV socket support
2007-02-08 13:51:54 -08:00
[NETFILTER]: nf_conntrack: change nf_conntrack_l[34]proto_unregister to void
2007-02-12 11:14:28 -08:00
[SCTP]: Correctly handle unexpected INIT-ACK chunk.
2007-01-23 20:25:46 -08:00
[PKT_SCHED]: Kill pkt_act.h inlining.
2006-09-22 14:55:10 -07:00
[TIPC]: endianness annotations
2006-12-02 21:21:08 -08:00
[PKT_SCHED]: Kill pkt_act.h inlining.
2006-09-22 14:55:10 -07:00
[IPV6]: Misc endianness annotations.
2006-12-02 21:22:52 -08:00
[AF_UNIX]: Kernel memory leak fix for af_unix datagram getpeersec patch
2006-08-02 14:12:06 -07:00
[IPSEC]: Use HMAC template and hash interface
2006-09-21 11:46:18 +10:00
[IPV6]: Assorted trivial endianness annotations.
2006-12-02 21:22:50 -08:00
[ATM]: Annotations.
2006-12-02 21:22:55 -08:00
[PATCH] mark struct file_operations const 1
2007-02-12 09:48:44 -08:00
[NET]: Make mangling a checksum (0 -> 0xffff on the wire) explicit.
2006-12-02 21:23:39 -08:00
NetLabel: use the correct CIPSOv4 MLS label limits
2006-12-02 21:24:12 -08:00
Merge git://git.infradead.org/hdrcleanup-2.6
2006-06-20 15:10:08 -07:00
[NET]: Reduce sizeof(struct flowi) by 20 bytes.
2006-10-21 20:24:01 -07:00
[DECNET]: cleanups
2006-09-22 14:54:40 -07:00
[DECNET]: Convert decnet route to use the new dst_entry 'next' pointer
2007-02-10 23:20:43 -08:00
[NET]: IP header modifier helpers annotations.
2006-12-02 21:23:40 -08:00
[NET]: Reorder fields of struct dst_entry
2007-02-10 23:20:45 -08:00
[IPSEC] esp: Defer output IV initialization to first use.
2006-09-22 15:17:35 -07:00
[NETLINK]: Do precise netlink message allocations where possible
2006-12-02 21:22:11 -08:00
[NET]: Rethink mark field in struct flowi
2006-12-02 21:21:39 -08:00
[GENETLINK]: Add cmd dump completion.
2006-12-02 21:32:09 -08:00
[IPV4]: icmp_send() annotation
2006-09-28 18:01:06 -07:00
[PATCH] ieee80211: WLAN_GET_SEQ_SEQ fix (select correct region)
2007-01-02 20:56:26 -05:00
WorkStruct: make allyesconfig
2006-11-22 14:57:56 +00:00
[IPV6]: Per-interface statistics support.
2006-12-02 21:22:08 -08:00
[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().
2007-01-26 01:04:55 -08:00
[IPV6]: annotate inet6_hashtables
2006-12-02 21:21:10 -08:00
[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().
2007-01-26 01:04:55 -08:00
[NET]: IP header modifier helpers annotations.
2006-12-02 21:23:40 -08:00
[NET]: change layout of ehash table
2007-02-08 14:16:46 -08:00
[IPV4]: annotate inet_lookup() and friends
2006-09-28 18:02:26 -07:00
WorkStruct: Pass the work_struct pointer instead of context data
2006-11-22 14:55:48 +00:00
[IPV4] inet_peer: Group together avl_left, avl_right, v4daddr to speedup lookups on some CPUS
2006-10-20 00:28:35 -07:00
[TCP]: Restore SKB socket owner setting in tcp_transmit_skb().
2007-01-26 01:04:55 -08:00
[IPV6]: Dumb typo in generic csum_ipv6_magic()
2006-12-22 11:12:07 -08:00
[IPV6]: Convert ipv6 route to use the new dst_entry 'next' pointer
2007-02-10 23:20:40 -08:00
[IPV6]: Misc endianness annotations.
2006-12-02 21:22:52 -08:00
[IPV4] nl_fib_lookup: Rename fl_fwmark to fl_mark
2006-12-02 21:21:40 -08:00
[NET]: Rethink mark field in struct flowi
2006-12-02 21:21:39 -08:00
[NET]: ipvs checksum annotations.
2006-12-02 21:23:41 -08:00
[CRYPTO] users: Use crypto_comp and crypto_has_*
2006-09-21 11:46:22 +10:00
[NET]: ipconfig and nfsroot annotations
2006-12-02 21:21:09 -08:00
[IPV6] net/ipv6/sit.c: make 2 functions static
2006-12-02 21:26:15 -08:00
[IPV6]: __ipv6_addr_diff() annotations and cleanup.
2006-12-02 21:22:53 -08:00
[IPX]: Annotate and fix IPX checksum
2006-11-05 14:11:25 -08:00
[LLC]: anotations
2006-12-02 21:21:23 -08:00
[IPV6] MIP6: Add receiving mobility header functions through raw socket.
2006-09-22 15:07:01 -07:00
[IPV6]: Misc endianness annotations.
2006-12-02 21:22:52 -08:00
[NET]: Convert hh_lock to seqlock.
2006-12-08 17:19:20 -08:00
Remove all inclusions of <linux/config.h>
2006-10-04 03:38:54 -04:00
[NET]: Network Event Notifier Mechanism.
2006-08-02 13:38:20 -07:00
NetLabel: convert to an extensibile/sparse category bitmap
2006-12-02 21:31:36 -08:00
[PATCH] severing skbuff.h -> mm.h
2006-12-04 02:00:34 -05:00
[PATCH] mark struct file_operations const 1
2007-02-12 09:48:44 -08:00
[IPv4]: FIB configuration using struct fib_config
2006-09-22 14:55:04 -07:00
[PKT_SCHED]: Fix regression in PSCHED_TADD{,2}.
2006-07-24 12:44:23 -07:00
[INET]: Change protocol field in struct inet_protosw to u16
2006-12-02 21:30:55 -08:00
Merge git://git.infradead.org/hdrcleanup-2.6
2006-06-20 15:10:08 -07:00
[IPV6]: 'info' argument of ipv6 ->err_handler() is net-endian
2006-12-02 21:21:12 -08:00
[PKT_SCHED] RED: Fix overflow in calculation of queue average
2006-08-04 22:59:51 -07:00
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
[PATCH] mark struct file_operations const 1
2007-02-12 09:48:44 -08:00
[IPV4]: Convert ipv4 route to use the new dst_entry 'next' pointer
2007-02-10 23:20:38 -08:00
[NET_SCHED]: Fix endless loops caused by inaccurate qlen counters (part 1)
2006-12-02 21:31:42 -08:00
[AF_UNIX]: Kernel memory leak fix for af_unix datagram getpeersec patch
2006-08-02 14:12:06 -07:00
[SCTP]: Extend /proc/net/sctp/snmp to provide more statistics.
2006-09-22 14:55:16 -07:00
[NET]: Fix bugs in "Whether sock accept queue is full" checking
2007-03-02 20:37:33 -08:00
[TCP]: remove tcp header from tcp_v4_check (take #2 )
2007-02-08 12:38:44 -08:00
[IPV6]: Added GSO support for TCPv6
2006-06-30 14:12:10 -07:00
[PATCH] slab: remove kmem_cache_t
2006-12-07 08:39:25 -08:00
[NET]: Supporting UDP-Lite (RFC 3828) in Linux
2006-12-02 21:22:46 -08:00
[PATCH] severing skbuff.h -> poll.h
2006-12-04 02:00:31 -05:00
[NET]: Fix assorted misannotations (from md5 and udplite merges).
2006-12-02 21:27:16 -08:00
[X.25]: Adds /proc/sys/net/x25/x25_forward to control forwarding.
2007-02-08 13:34:36 -08:00
[IPSEC]: changing API of xfrm6_tunnel_register
2007-02-13 12:55:55 -08:00
8488df894d