- 03 12月, 2006 13 次提交
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由 Al Viro 提交于
... into anonymous union of __wsum and __u32 (csum and csum_offset resp.) Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnaldo Carvalho de Melo 提交于
Code diff stats: [acme@newtoy net-2.6.20]$ codiff /tmp/ipv6.ko.before /tmp/ipv6.ko.after /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv6/ip6_output.c: ip6_output | -52 ip6_append_data | +2 2 functions changed, 2 bytes added, 52 bytes removed /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv6/addrconf.c: addrconf_sysctl_register | -27 1 function changed, 27 bytes removed /pub/scm/linux/kernel/git/acme/net-2.6.20/net/ipv6/tcp_ipv6.c: tcp_v6_syn_recv_sock | -32 tcp_v6_parse_md5_keys | -24 2 functions changed, 56 bytes removed /tmp/ipv6.ko.after: 5 functions changed, 2 bytes added, 135 bytes removed [acme@newtoy net-2.6.20]$ Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Just some mis-placed ifdefs: net/ipv4/tcp_minisocks.c: In function ‘tcp_twsk_destructor’: net/ipv4/tcp_minisocks.c:364: warning: unused variable ‘twsk’ net/ipv6/tcp_ipv6.c:1846: warning: ‘tcp_sock_ipv6_specific’ defined but not used net/ipv6/tcp_ipv6.c:1877: warning: ‘tcp_sock_ipv6_mapped_specific’ defined but not used Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki 提交于
Based on implementation by Rick Payne. Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gerrit Renker 提交于
Throughout the TCP/DCCP (and tunnelling) code, it often happens that the return code of a transmit function needs to be tested against NET_XMIT_CN which is a value that does not indicate a strict error condition. This patch uses a macro for these recurring situations which is consistent with the already existing macro net_xmit_errno, saving on duplicated code. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com>
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由 Gerrit Renker 提交于
This removes two redundancies: 1) The test (skb->protocol == htons(ETH_P_IPV6) in tcp_v6_init_sequence() is always true, due to * tcp_v6_conn_request() is the only function calling this one * tcp_v6_conn_request() redirects all skb's with ETH_P_IP protocol to tcp_v4_conn_request() [ cf. top of tcp_v6_conn_request()] 2) The first argument, `struct sock *sk' of tcp_v{4,6}_init_sequence() is never used. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
We currently allocate a fixed size (TCP_SYNQ_HSIZE=512) slots hash table for each LISTEN socket, regardless of various parameters (listen backlog for example) On x86_64, this means order-1 allocations (might fail), even for 'small' sockets, expecting few connections. On the contrary, a huge server wanting a backlog of 50000 is slowed down a bit because of this fixed limit. This patch makes the sizing of listen hash table a dynamic parameter, depending of : - net.core.somaxconn tunable (default is 128) - net.ipv4.tcp_max_syn_backlog tunable (default : 256, 1024 or 128) - backlog value given by user application (2nd parameter of listen()) For large allocations (bigger than PAGE_SIZE), we use vmalloc() instead of kmalloc(). We still limit memory allocation with the two existing tunables (somaxconn & tcp_max_syn_backlog). So for standard setups, this patch actually reduce RAM usage. Signed-off-by: NEric Dumazet <dada1@cosmosbay.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 10月, 2006 2 次提交
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由 YOSHIFUJI Hideaki 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 9月, 2006 1 次提交
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由 Fabio Olive Leite 提交于
A while ago Ingo patched tcp_v4_rcv on net/ipv4/tcp_ipv4.c to use bh_lock_sock_nested and silence a lock validator warning. This fixed it for IPv4, but recently I saw a report of the same warning on IPv6. Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 9月, 2006 5 次提交
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由 Dmitry Mishin 提交于
Function sk_filter() is called from tcp_v{4,6}_rcv() functions with arg needlock = 0, while socket is not locked at that moment. In order to avoid this and similar issues in the future, use rcu for sk->sk_filter field read protection. Signed-off-by: NDmitry Mishin <dim@openvz.org> Signed-off-by: NAlexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: NKirill Korotaev <dev@openvz.org>
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由 YOSHIFUJI Hideaki 提交于
Based on MIPL2 kernel patch. Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NVille Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Venkat Yekkirala 提交于
This automatically labels the TCP, Unix stream, and dccp child sockets as well as openreqs to be at the same MLS level as the peer. This will result in the selection of appropriately labeled IPSec Security Associations. This also uses the sock's sid (as opposed to the isec sid) in SELinux enforcement of secmark in rcv_skb and postroute_last hooks. Signed-off-by: NVenkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Venkat Yekkirala 提交于
This labels the flows that could utilize IPSec xfrms at the points the flows are defined so that IPSec policy and SAs at the right label can be used. The following protos are currently not handled, but they should continue to be able to use single-labeled IPSec like they currently do. ipmr ip_gre ipip igmp sit sctp ip6_tunnel (IPv6 over IPv6 tunnel device) decnet Signed-off-by: NVenkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 8月, 2006 1 次提交
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由 Stephen Hemminger 提交于
TCP over IPV6 would incorrectly inherit the GSO settings. This would cause kernel to send Tcp Segmentation Offload packets for IPV6 data to devices that can't handle it. It caused the sky2 driver to lock http://bugzilla.kernel.org/show_bug.cgi?id=7050 and the e1000 would generate bogus packets. I can't blame the hardware for gagging if the upper layers feed it garbage. This was a new bug in 2.6.18 introduced with GSO support. Signed-off-by: NStephen Hemminger <shemminger@osdl.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 8月, 2006 2 次提交
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由 Wei Yongjun 提交于
Refer to RFC2012, tcpAttemptFails is defined as following: tcpAttemptFails OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections have made a direct transition to the LISTEN state from the SYN-RCVD state." ::= { tcp 7 } When I lookup into RFC793, I found that the state change should occured under following condition: 1. SYN-SENT -> CLOSED a) Received ACK,RST segment when SYN-SENT state. 2. SYN-RCVD -> CLOSED b) Received SYN segment when SYN-RCVD state(came from LISTEN). c) Received RST segment when SYN-RCVD state(came from SYN-SENT). d) Received SYN segment when SYN-RCVD state(came from SYN-SENT). 3. SYN-RCVD -> LISTEN e) Received RST segment when SYN-RCVD state(came from LISTEN). In my test, those direct state transition can not be counted to tcpAttemptFails. Signed-off-by: NWei Yongjun <yjwei@nanjing-fnst.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
The current users of ip6_dst_lookup can be divided into two classes: 1) The caller holds no locks and is in user-context (UDP). 2) The caller does not want to lookup the dst cache at all. The second class covers everyone except UDP because most people do the cache lookup directly before calling ip6_dst_lookup. This patch adds ip6_sk_dst_lookup for the first class. Similarly ip6_dst_store users can be divded into those that need to take the socket dst lock and those that don't. This patch adds __ip6_dst_store for those (everyone except UDP/datagram) that don't need an extra lock. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 7月, 2006 1 次提交
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由 Herbert Xu 提交于
Certain subsystems in the stack (e.g., netfilter) can break the partial checksum on GSO packets. Until they're fixed, this patch allows this to work by recomputing the partial checksums through the GSO mechanism. Once they've all been converted to update the partial checksum instead of clearing it, this workaround can be removed. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 7月, 2006 3 次提交
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由 Herbert Xu 提交于
This patch adds GSO support for IPv6 and TCPv6. This is based on a patch by Ananda Raju <Ananda.Raju@neterion.com>. His original description is: This patch enables TSO over IPv6. Currently Linux network stacks restricts TSO over IPv6 by clearing of the NETIF_F_TSO bit from "dev->features". This patch will remove this restriction. This patch will introduce a new flag NETIF_F_TSO6 which will be used to check whether device supports TSO over IPv6. If device support TSO over IPv6 then we don't clear of NETIF_F_TSO and which will make the TCP layer to create TSO packets. Any device supporting TSO over IPv6 will set NETIF_F_TSO6 flag in "dev->features" along with NETIF_F_TSO. In case when user disables TSO using ethtool, NETIF_F_TSO will get cleared from "dev->features". So even if we have NETIF_F_TSO6 we don't get TSO packets created by TCP layer. SKB_GSO_TCPV4 renamed to SKB_GSO_TCP to make it generic GSO packet. SKB_GSO_UDPV4 renamed to SKB_GSO_UDP as UFO is not a IPv4 feature. UFO is supported over IPv6 also The following table shows there is significant improvement in throughput with normal frames and CPU usage for both normal and jumbo. -------------------------------------------------- | | 1500 | 9600 | | ------------------|-------------------| | | thru CPU | thru CPU | -------------------------------------------------- | TSO OFF | 2.00 5.5% id | 5.66 20.0% id | -------------------------------------------------- | TSO ON | 2.63 78.0 id | 5.67 39.0% id | -------------------------------------------------- Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
This patch adds GSO support for IPv6 and TCPv6. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jörn Engel 提交于
Signed-off-by: NJörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: NAdrian Bunk <bunk@stusta.de>
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- 30 6月, 2006 1 次提交
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由 Sridhar Samudrala 提交于
While debugging a TCP server hang issue, we noticed that currently there is no way for a user to get the acceptq backlog value for a TCP listen socket. All the standard networking utilities that display socket info like netstat, ss and /proc/net/tcp have 2 fields called rx_queue and tx_queue. These fields do not mean much for listening sockets. This patch uses one of these unused fields(rx_queue) to export the accept queue len for listening sockets. Signed-off-by: NSridhar Samudrala <sri@us.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 6月, 2006 1 次提交
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由 Chris Leech 提交于
Locks down user pages and sets up for DMA in tcp_recvmsg, then calls dma_async_try_early_copy in tcp_v4_do_rcv Signed-off-by: NChris Leech <christopher.leech@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 3月, 2006 4 次提交
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由 Arnaldo Carvalho de Melo 提交于
No code changes, just tidying up, in some cases moving EXPORT_SYMBOLs to just after the function exported, etc. Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dmitry Mishin 提交于
This patch extends {get|set}sockopt compatibility layer in order to move protocol specific parts to their place and avoid huge universal net/compat.c file in the future. Signed-off-by: NDmitry Mishin <dim@openvz.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnaldo Carvalho de Melo 提交于
Consolidating open coded sequences in tcp and dccp, v4 and v6. Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 John Heffner 提交于
Implementation of packetization layer path mtu discovery for TCP, based on the internet-draft currently found at <http://www.ietf.org/internet-drafts/draft-ietf-pmtud-method-05.txt>. Signed-off-by: NJohn Heffner <jheffner@psc.edu> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 2月, 2006 1 次提交
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由 Eric W. Biederman 提交于
This patch fix dst reference counting in tcp_v6_send_synack Analysis: Currently tcp_v6_send_synack is never called with a dst entry so dst always comes in as NULL. ip6_dst_lookup calls ip6_route_output which calls dst_hold before it returns the dst entry. Neither xfrm_lookup nor tcp_make_synack consume the dst entry so we still have a dst_entry with a bumped refrence count at the end of this function. Therefore we need to call dst_release just before we return just like tcp_v4_send_synack does. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 1月, 2006 1 次提交
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由 David Woodhouse 提交于
The ip6_xmit() function now assumes that its sk argument is non-NULL, which isn't currently true when TCPv6 code is sending RST or ACK packets. This fixes that code to use a socket of its own for sending such packets, as TCPv4 does. (Thanks Andi for the pointer). Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 1月, 2006 1 次提交
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由 Patrick McHardy 提交于
Move nextheader offset to the IP6CB to make it possible to pass a packet to ip6_input_finish multiple times and have it skip already parsed headers. As a nice side effect this gets rid of the manual hopopts skipping in ip6_input_finish. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 1月, 2006 3 次提交
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由 Arnaldo Carvalho de Melo 提交于
As DCCP needs to be called in the same spots. Now we have a member in inet_sock (is_icsk), set at sock creation time from struct inet_protosw->flags (if INET_PROTOSW_ICSK is set, like for TCP and DCCP) to see if a struct sock instance is a inet_connection_sock for places like the ones in ip_sockglue.c (v4 and v6) where we previously were looking if sk_type was SOCK_STREAM, that is insufficient because we now use the same code for DCCP, that has sk_type SOCK_DCCP. Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnaldo Carvalho de Melo 提交于
Renaming it to inet6_hash_connect, making it possible to ditch dccp_v6_hash_connect and share the same code with TCP instead. Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnaldo Carvalho de Melo 提交于
So that we can share several timewait sockets related functions and make the timewait mini sockets infrastructure closer to the request mini sockets one. Next changesets will take advantage of this, moving more code out of TCP and DCCP v4 and v6 to common infrastructure. Signed-off-by: NArnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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