Commit Graph

1303 Commits

Author SHA1 Message Date
Herbert Xu 86c8f9d158 [IPV4] Fix EPROTONOSUPPORT error in inet_create
There is a coding error in inet_create that causes it to always return
ESOCKTNOSUPPORT.  It should return EPROTONOSUPPORT when there are
protocols registered for a given socket type but none of them match
the requested protocol.

This is based on a patch by Jayachandran C.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-02 20:43:26 -08:00
David Stevens 24c6927505 [IGMP]: workaround for IGMP v1/v2 bug
From: David Stevens <dlstevens@us.ibm.com>

As explained at:

	http://www.cs.ucsb.edu/~krishna/igmp_dos/

With IGMP version 1 and 2 it is possible to inject a unicast
report to a client which will make it ignore multicast
reports sent later by the router.

The fix is to only accept the report if is was sent to a
multicast or unicast address.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-02 20:32:59 -08:00
Neil Horman bf031fff1f [SCTP]: Fix getsockname for sctp when an ipv6 socket accepts a connection from
an ipv4 socket.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-02 20:32:29 -08:00
Neil Horman 6736dc35e9 [SCTP]: Return socket errors only if the receive queue is empty.
This patch fixes an issue where it is possible to get valid data after
a ENOTCONN error. It returns socket errors only after data queued on
socket receive queue is consumed.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-02 20:30:06 -08:00
Thomas Graf ea86575eaf [NETLINK]: Fix processing of fib_lookup netlink messages
The receive path for fib_lookup netlink messages is lacking sanity
checks for header and payload and is thus vulnerable to malformed
netlink messages causing illegal memory references.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-01 14:30:00 -08:00
Phil Oester 2a43c4af3f [NETFILTER]: Fix recent match jiffies wrap mismatches
Around jiffies wrap time (i.e. within first 5 mins after boot), recent
match rules which contain both --seconds and --hitcount arguments
experience false matches.

This is because the last_pkts array is filled with zeros on creation, and
when comparing 'now' to 0 (+ --seconds argument), time_before_eq thinks it
has found a hit.

Below patch adds a break if the packet value is zero.  This has the
unfortunate side effect of causing mismatches if a packet was received
when jiffies really was equal to zero.  The odds of that happening are
slim compared to the problems caused by not adding the break however.
Plus, the author used this same method just below, so it is "good enough".

This fixes netfilter bugs #383 and #395.

Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-01 14:29:24 -08:00
Jozsef Kadlecsik 73f306024c [NETFILTER]: Ignore ACKs ACKs on half open connections in TCP conntrack
Mounting NFS file systems after a (warm) reboot could take a long time if
firewalling and connection tracking was enabled.

The reason is that the NFS clients tends to use the same ports (800 and
counting down). Now on reboot, the server would still have a TCB for an
existing TCP connection client:800 -> server:2049. The client sends a
SYN from port 800 to server:2049, which elicits an ACK from the server.
The firewall on the client drops the ACK because (from its point of
view) the connection is still in half-open state, and it expects to see
a SYNACK.

The client will eventually time out after several minutes.

The following patch corrects this, by accepting ACKs on half open
connections as well.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-01 14:28:58 -08:00
Adrian Bunk 34a0b3cdc0 [IPV6]: make two functions static
This patch makes two needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:28:56 -08:00
Adrian Bunk d127e94a5c [NETFILTER] ipv4: small cleanups
This patch contains the following cleanups:
- make needlessly global code static
- ip_conntrack_core.c: ip_conntrack_flush() -> ip_conntrack_flush(void)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:28:18 -08:00
Adrian Bunk 4b30b1c6a3 [IPV4]: make two functions static
This patch makes two needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:27:20 -08:00
Arjan van de Ven 9b5b5cff9a [NET]: Add const markers to various variables.
the patch below marks various variables const in net/; the goal is to
move them to the .rodata section so that they can't false-share
cachelines with things that get written to, as well as potentially
helping gcc a bit with optimisations.  (these were found using a gcc
patch to warn about such variables)

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:21:38 -08:00
Stanislaw Gruszka 64bf69ddff [ATM]: deregistration removes device from atm_devs list immediately
atm_dev_deregister() removes device from atm_dev list immediately to
prevent operations on a phantom device.  Decision to free device based
only on ->refcnt  now. Remove shutdown_atm_dev() use atm_dev_deregister()
instead.  atm_dev_deregister() also asynchronously releases all vccs
related to device.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:16:41 -08:00
Stanislaw Gruszka aaaaaadbe7 [ATM]: avoid race conditions related to atm_devs list
Use semaphore to protect atm_devs list, as no one need access to it from
interrupt context.  Avoid race conditions between atm_dev_register(),
atm_dev_lookup() and atm_dev_deregister().  Fix double spin_unlock() bug.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:16:21 -08:00
Mitchell Blank Jr 50accc9c42 [ATM]: attempt to autoload atm drivers
From: Mitchell Blank Jr <mitch@sfgoth.com>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:15:18 -08:00
Mitchell Blank Jr c219750b2e [ATM]: atm_pcr_goal() doesn't modify its argument's contents -- mark it as const
Signed-off-by: Mitchell Blank Jr <mitch@sfgoth.com>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:13:55 -08:00
Mitchell Blank Jr c9933d0856 [ATM]: always return the first interface for ATM_ITF_ANY
From: Mitchell Blank Jr <mitch@sfgoth.com>
Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:13:32 -08:00
Mike Stroyan 18955cfcb2 [IPV4] tcp/route: Another look at hash table sizes
The tcp_ehash hash table gets too big on systems with really big memory.
It is worse on systems with pages larger than 4KB.  It wastes memory that
could be better used.  It also makes the netstat command slow because reading
/proc/net/tcp and /proc/net/tcp6 needs to go through the full hash table.

  The default value should not be larger for larger page sizes.  It seems
that the effect of page size is an unintended error dating back a long
time.  I also wonder if the default value really should be a larger
fraction of memory for systems with more memory.  While systems with
really big ram can afford more space for hash tables, it is not clear to
me that they benefit from increasing the allocation ratio for this table.

  The amount of memory allocated is determined by net/ipv4/tcp.c:tcp_init and
mm/page_alloc.c:alloc_large_system_hash.

tcp_init calls alloc_large_system_hash passing parameters-
    bucketsize=sizeof(struct tcp_ehash_bucket)
    numentries=thash_entries
    scale=(num_physpages >= 128 * 1024) ? (25-PAGE_SHIFT) : (27-PAGE_SHIFT)
    limit=0

On i386, PAGE_SHIFT is 12 for a page size of 4K
On ia64, PAGE_SHIFT defaults to 14 for a page size of 16K

The num_physpages test above makes the allocation take a larger fraction
of the total memory on systems with larger memory.  The threshold size
for a i386 system is 512MB.  For an ia64 system with 16KB pages the
threshold is 2GB.

For smaller memory systems-
On i386, scale = (27 - 12) = 15
On ia64, scale = (27 - 14) = 13
For larger memory systems-
On i386, scale = (25 - 12) = 13
On ia64, scale = (25 - 14) = 11

  For the rest of this discussion, I'll just track the larger memory case.

  The default behavior has numentries=thash_entries=0, so the allocated
size is determined by either scale or by the default limit of 1/16 of
total memory.

In alloc_large_system_hash-
|	numentries = (flags & HASH_HIGHMEM) ? nr_all_pages : nr_kernel_pages;
|	numentries += (1UL << (20 - PAGE_SHIFT)) - 1;
|	numentries >>= 20 - PAGE_SHIFT;
|	numentries <<= 20 - PAGE_SHIFT;

  At this point, numentries is pages for all of memory, rounded up to the
nearest megabyte boundary.

|	/* limit to 1 bucket per 2^scale bytes of low memory */
|	if (scale > PAGE_SHIFT)
|		numentries >>= (scale - PAGE_SHIFT);
|	else
|		numentries <<= (PAGE_SHIFT - scale);

On i386, numentries >>= (13 - 12), so numentries is 1/8196 of
bytes of total memory.
On ia64, numentries <<= (14 - 11), so numentries is 1/2048 of
bytes of total memory.

|        log2qty = long_log2(numentries);
|
|        do {
|                size = bucketsize << log2qty;

bucketsize is 16, so size is 16 times numentries, rounded
down to a power of two.

On i386, size is 1/512 of bytes of total memory.
On ia64, size is 1/128 of bytes of total memory.

For smaller systems the results are
On i386, size is 1/2048 of bytes of total memory.
On ia64, size is 1/512 of bytes of total memory.

  The large page effect can be removed by just replacing
the use of PAGE_SHIFT with a constant of 12 in the calls to
alloc_large_system_hash.  That makes them more like the other uses of
that function from fs/inode.c and fs/dcache.c

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-29 16:12:55 -08:00
YOSHIFUJI Hideaki 220bbd7483 [IPV6]: Implement appropriate dummy rule 4 in ipv6_dev_get_saddr().
Ensure to update hiscore.rule in dummy rule 4 in ipv6_dev_get_saddr().
Pointed out by Yan Zheng <yanzheng@21cn.com>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-28 22:27:11 -08:00
Trond Myklebust b3eb67a2ab SUNRPC: Funny looking code in __rpc_purge_upcall
In __rpc_purge_upcall (net/sunrpc/rpc_pipe.c), the newer code to clean up
 the in_upcall list has a typo.
 Thanks to Vince Busam <vbusam@google.com> for spotting this!

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-11-25 17:11:30 -05:00
Olaf Rempel 133747e8d1 [BRIDGE]: recompute features when adding a new device
We must recompute bridge features everytime the list of underlying 
devices changes, or we might end up with features that are not
supported by all devices (eg. NETIF_F_TSO)
This patch adds the missing recompute when adding a device to the bridge.

Signed-off-by: Olaf Rempel <razzor@kopf-tisch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-23 19:04:08 -08:00
Benoit Boissinot de919820cf [NETFILTER]: ip_conntrack_netlink.c needs linux/interrupt.h
net/ipv4/netfilter/ip_conntrack_netlink.c: In function 'ctnetlink_dump_table':
net/ipv4/netfilter/ip_conntrack_netlink.c:409: warning: implicit declaration of function 'local_bh_disable'
net/ipv4/netfilter/ip_conntrack_netlink.c:427: warning: implicit declaration of function 'local_bh_enable'

Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-23 19:03:46 -08:00
Pablo Neira Ayuso 00cb277a4a [NETFILTER] ctnetlink: Fix refcount leak ip_conntrack/nat_proto
Remove proto == NULL checking since ip_conntrack_[nat_]proto_find_get
always returns a valid pointer.

Fix missing ip_conntrack_proto_put in some paths.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-22 14:54:34 -08:00
Jamal Hadi Salim 0ff60a4567 [IPV4]: Fix secondary IP addresses after promotion
This patch fixes the problem with promoting aliases when:
a) a single primary and > 1 secondary addresses
b) multiple primary addresses each with at least one secondary address

Based on earlier efforts from Brian Pomerantz <bapper@piratehaven.org>,
Patrick McHardy <kaber@trash.net> and Thomas Graf <tgraf@suug.ch>

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-22 14:47:37 -08:00
Herbert Xu c27bd492fd [NETLINK]: Use tgid instead of pid for nlmsg_pid
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-22 14:41:50 -08:00
Patrick McHardy a516b04950 [DCCP]: Add missing no_policy flag to struct net_protocol
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-20 21:16:13 -08:00
Yasuyuki Kozakai 2b8f2ff6f4 [NETFILTER]: fixed dependencies between modules related with ip_conntrack
- IP_NF_CONNTRACK_MARK is bool and depends on only IP_NF_CONNTRACK
  which is tristate. If a variable depends on IP_NF_CONNTRACK_MARK and
  doesn't care about IP_NF_CONNTRACK, it can be y. This must be avoided.
- IP_NF_CT_ACCT has same problem.
- IP_NF_TARGET_CLUSTERIP also depends on IP_NF_MANGLE.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-20 21:09:55 -08:00
Patrick McHardy c9e53cbe7a [FIB_TRIE]: Don't show local table in /proc/net/route output
Don't show local table to behave similar to fib_hash.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-20 21:09:00 -08:00
David S. Miller 1ef43204f4 Merge git://git.skbuff.net/gitroot/yoshfuji/linux-2.6.14+advapi-fix/ 2005-11-20 20:52:16 -08:00
Yan Zheng 5d5780df23 [IPV6]: Acquire addrconf_hash_lock for read in addrconf_verify(...)
addrconf_verify(...) only traverse address hash table when
addrconf_hash_lock is held for writing, and it may hold
addrconf_hash_lock for a long time. So I think it's better to acquire
addrconf_hash_lock for reading instead of writing

Signed-off-by: Yan Zheng <yanzheng@21cn.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-20 13:42:20 -08:00
Kris Katterjohn fb0d366b08 [NET]: Reject socket filter if division by constant zero is attempted.
This way we don't have to check it in sk_run_filter().

Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-20 13:41:34 -08:00
Andrea Bittau aa8751667d [PKT_SCHED]: sch_netem: correctly order packets to be sent simultaneously
If two packets were queued to be sent at the same time in the future,
their order would be reversed.  This would occur because the queue is
traversed back to front, and a position is found by checking whether
the new packet needs to be sent before the packet being examined.  If
the new packet is to be sent at the same time of a previous packet, it
would end up before the old packet in the queue.  This patch places
packets in the correct order when they are queued to be sent at a same
time in the future.

Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-20 13:41:05 -08:00
YOSHIFUJI Hideaki df9890c31a [IPV6]: Fix sending extension headers before and including routing header.
Based on suggestion from Masahide Nakamura <nakam@linux-ipv6.org>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-11-20 12:23:18 +09:00
Ville Nuorvala a305989386 [IPV6]: Fix calculation of AH length during filling ancillary data.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-11-20 12:21:59 +09:00
YOSHIFUJI Hideaki 8b8aa4b5a6 [IPV6]: Fix memory management error during setting up new advapi sockopts.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-11-20 12:18:17 +09:00
David S. Miller 9e147a1cfc [IPV6]: Fib dump really needs GFP_ATOMIC.
Revert: 8225ccbaf0

Based upon a report by Yan Zheng.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-17 16:52:51 -08:00
Roman Zippel 05b8b0fafd [NET]: Sanitize NET_SCHED protection in /net/sched/Kconfig
On Thu, 17 Nov 2005, David Gmez wrote:

> I found out that if i select NET_CLS_ROUTE4, save my changes and exit
> menuconfig, execute again make menuconfig and go to QoS options, then the new
> available options are visible. So menuconfig has some problem refreshing
> contents :?

No, they were there before too, but you have to go up one level to see 
them.

It's better in 2.6.15-rc1-git5, but the menu structure is still a little 
messed up, the patch below properly indents all menu entries.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-17 15:22:39 -08:00
David S. Miller 381998241f [LLC]: Fix compiler warnings introduced by TX window scaling changes.
Noticed by Olaf Hering.

The comparisons want a u8 here (the data type on the left-hand branch
is a u8 structure member, and the constant on the right-hand branch is
"~((u8) 128)"), but C turns it into an integer so we get:

net/llc/llc_c_ac.c: In function `llc_conn_ac_inc_npta_value':
net/llc/llc_c_ac.c:998: warning: comparison is always true due to limited range of data type
net/llc/llc_c_ac.c:999: warning: large integer implicitly truncated to unsigned type

Fix this up by explicitly recasting the right-hand branch constant
into a "u8" once more.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-17 15:17:42 -08:00
Harald Welte 2fce76afdb [NETFILTER] ip_conntrack: fix ftp/irc/tftp helpers on ports >= 32768
Since we've converted the ftp/irc/tftp helpers to use the new
module_parm_array() some time ago, we ware accidentially using signed data
types - thus preventing those modules from being used on ports >= 32768.

This patch fixes it by using 'ushort' module parameters.

Thanks to Jan Nijs for reporting this bug.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-17 15:06:47 -08:00
Stephen Hemminger bd6af700a7 [TCP]: TCP highspeed build error
There is a compile error that crept in with the last patch of
TCP patches.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-17 14:11:18 -08:00
Patrick McHardy 4a59a81051 [NETFILTER]: Fix nf_conntrack compilation with CONFIG_NETFILTER_DEBUG
CC [M]  net/netfilter/nf_conntrack_core.o
net/netfilter/nf_conntrack_core.c: In function 'nf_ct_unlink_expect':
net/netfilter/nf_conntrack_core.c:390: error: 'exp_timeout' undeclared (first use in this function)
net/netfilter/nf_conntrack_core.c:390: error: (Each undeclared identifier is reported only once
net/netfilter/nf_conntrack_core.c:390: error: for each function it appears in.)

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-16 23:14:19 -08:00
Yasuyuki Kozakai e7c8a41e81 [IPV4,IPV6]: replace handmade list with hlist in IPv{4,6} reassembly
Both of ipq and frag_queue have *next and **prev, and they can be replaced
with hlist. Thanks Arnaldo Carvalho de Melo for the suggestion.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-16 12:55:37 -08:00
Linus Torvalds f6ff56cd56 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-11-15 16:59:38 -08:00
KOVACS Krisztian 5a6f294e43 [NETFILTER] Free layer-3 specific protocol tables at cleanup
Although the comment around the allocation code tells us that
the layer-3 specific protocol tables will be freed when cleaning up,
they aren't. And this makes nfsim complain loudly...

Signed-off-by: KOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-15 16:47:34 -08:00
KOVACS Krisztian 96479376c8 [NETFILTER] Remove nf_conntrack stat proc file when cleaning up
Fix nf_conntrack statistics proc file removal. Looks like the old bug
was forward-ported from ip_conntrack. :-]

Signed-off-by: KOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-15 16:47:09 -08:00
Stephen Hemminger 31f3426904 [TCP]: More spelling fixes.
From Joe Perches

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-15 15:17:10 -08:00
NeilBrown 1887b93529 [PATCH] knfsd: make sure nfsd doesn't hog a cpu forever
Being kernel-threads, nfsd servers don't get pre-empted (depending on
CONFIG).  If there is a steady stream of NFS requests that can be served
from cache, an nfsd thread may hold on to a cpu indefinitely, which isn't
very friendly.

So it is good to have a cond_resched in there (just before looking for a
new request to serve), to make sure we play nice.

Signed-off-by: Neil Brown <neilb@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-15 08:59:19 -08:00
Jochen Friedrich 451677c46f [LLC]: Make core block on remote busy.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 21:57:46 -08:00
Jochen Friedrich 59c6196e59 [LLC]: Fix TX window scaling
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 21:57:15 -08:00
Luiz Capitulino cb422c464b [IPV6]: Fixes sparse warning in ipv6/ipv6_sockglue.c
The patch below fixes the following sparse warning:

net/ipv6/ipv6_sockglue.c:291:13: warning: Using plain integer as NULL pointer

Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 21:43:36 -08:00
Yan Zheng 12da2a435c [IPV6]: small fix for ipv6_dev_get_saddr(...)
The "score.rule++" doesn't make any sense for me. 
According to codes above, I think it should be "hiscore.rule++;" .

Signed-off-by: Yan Zheng<yanzheng@21cn.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 21:42:46 -08:00
Yasuyuki Kozakai 302fe1758d [NETFILTER] fix leak of fragment queue at unloading nf_conntrack_ipv6
This patch makes nf_conntrack_ipv6 free all IPv6 fragment queues at module
unloading time.  Also introduce a BUG_ON if we ever again have leaks in
the memory accounting.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:28:45 -08:00
Yasuyuki Kozakai 1ba430bc3e [NETFILTER] nf_conntrack: fix possibility of infinite loop while evicting nf_ct_frag6_queue
This synchronizes nf_ct_reasm with ipv6 reassembly, and fixes a possibility
of an infinite loop if CPUs evict and create nf_ct_frag6_queue in parallel.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:28:18 -08:00
Yasuyuki Kozakai 7686a02c0e [NETFILTER]: fix type of sysctl variables in nf_conntrack_ipv6
These variables should be unsigned.  This fixes sysctl handler for
nf_ct_frag6_{low,high}_thresh.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:27:43 -08:00
Yasuyuki Kozakai 9bdf87d90b [NETFILTER]: cleanup IPv6 Netfilter Kconfig
This removes linux 2.4 configs in comments as TODO lists.
And this also move the entry of nf_conntrack to top like IPv4 Netfilter
Kconfig.

Based on original patch by Krzysztof Piotr Oledzki <ole@ans.pl>.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:26:58 -08:00
Krzysztof Oledzki 47d4305bf2 [NETFILTER]: link 'netfilter' before ipv4
Staticaly linked nf_conntrack_ipv4 requires nf_conntrack. but currently
nf_conntrack is linked after it. This changes the order of ipv4 and netfilter
to fix this.

Signed-off-by: Krzysztof Oledzki <olenf@ans.pl>
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:25:59 -08:00
Harald Welte 37d2e7a20d [NETFILTER] nfnetlink: unconditionally require CAP_NET_ADMIN
This patch unconditionally requires CAP_NET_ADMIN for all nfnetlink
messages.  It also removes the per-message cap_required field, since all
existing subsystems use CAP_NET_ADMIN for all their messages anyway.

Patrick McHardy owes me a beer if we ever need to re-introduce this.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:24:59 -08:00
KOVACS Krisztian 3746a2b140 [NETFILTER] nf_conntrack: Add missing code to TCP conntrack module
Looks like the nf_conntrack TCP code was slightly mismerged: it does
not contain an else branch present in the IPv4 version. Let's add that
code and make the testsuite happy.

Signed-off-by: KOVACS Krisztian <hidden@balabit.hu>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:23:01 -08:00
Pablo Neira Ayuso 5655820852 [NETFILTER] ctnetlink: More thorough size checking of attributes
Add missing size checks. Thanks Patrick McHardy for the hint.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:22:11 -08:00
Pablo Neira Ayuso dbd36ea496 [NETFILTER] ctnetlink: use size_t to make gcc-4.x happy
Make gcc-4.x happy. Use size_t instead of int. Thanks to Patrick McHardy
for the hint.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-14 15:21:01 -08:00
Thomas Graf 8225ccbaf0 [IPV6]: Fix unnecessary GFP_ATOMIC allocation in fib6 dump
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-12 12:15:16 -08:00
Vlad Drukker a2d7222f0f [NETFILTER] {ip,nf}_conntrack TCP: Accept SYN+PUSH like SYN
Some devices (e.g. Qlogic iSCSI HBA hardware like QLA4010 up to firmware
3.0.0.4) initiates TCP with SYN and PUSH flags set.

The Linux TCP/IP stack deals fine with that, but the connection tracking
code doesn't.

This patch alters TCP connection tracking to accept SYN+PUSH as a valid
flag combination.

Signed-off-by: Vlad Drukker <vlad@storewiz.com>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-12 12:13:14 -08:00
Herbert Xu efacfbcb6c [IPV6]: Fix rtnetlink dump infinite loop
The recent change to netlink dump "done" callback handling broke IPv6
which played dirty tricks with the "done" callback.  This causes an
infinite loop during a dump.

The following patch fixes it.

This bug was reported by Jeff Garzik.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-12 12:12:05 -08:00
Neil Horman 049b3ff5a8 [SCTP]: Include ulpevents in socket receive buffer accounting.
Also introduces a sysctl option to configure the receive buffer
accounting policy to be either at socket or association level.
Default is all the associations on the same socket share the
receive buffer.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 16:08:24 -08:00
Vladislav Yasevich 1e7d3d90c9 [SCTP]: Remove timeouts[] array from sctp_endpoint.
The socket level timeout values are maintained in sctp_sock and
association level timeouts are in sctp_association. So there is
no need for ep->timeouts.

Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 16:06:16 -08:00
Vladislav Yasevich 23ec47a088 [SCTP]: Fix potential NULL pointer dereference in sctp_v4_get_saddr
It is possible to get to sctp_v4_get_saddr() without a valid
association.  This happens when processing OOTB packets and
the cached route entry is no longer valid.
However, when responding to OOTB packets we already properly
set the source address based on the information in the OOTB
packet.  So, if we we get to sctp_v4_get_saddr() without an
association we can simply return.

Signed-off-by: Vladislav Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 16:05:55 -08:00
David S. Miller 8eb5591052 [IPV6]: Fix inet6_init missing unregister.
Based mostly upon a patch from Olaf Kirch <okir@suse.de>

When initialization fails in inet6_init(), we should
unregister the PF_INET6 socket ops.

Also, check sock_register()'s return value for errors.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 15:05:47 -08:00
Patrick Caulfield 9eb5c94ef2 [DECNET]: fix SIGPIPE
Currently recvmsg generates SIGPIPE whereas sendmsg does not; for the
other stacks it seems to be the other way round!

It also fixes the bug where reading from a socket whose peer has shutdown
returned -EINVAL rather than 0.

Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-11 12:04:28 -08:00
Jeff Garzik c050970a25 [PATCH] TCP: fix vegas build
Recent TCP changes broke the build.

Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-11 09:21:28 -08:00
Stephen Hemminger 6a438bbe68 [TCP]: speed up SACK processing
Use "hints" to speed up the SACK processing. Various forms 
of this have been used by TCP developers (Web100, STCP, BIC)
to avoid the 2x linear search of outstanding segments.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 17:14:59 -08:00
Stephen Hemminger caa20d9abe [TCP]: spelling fixes
Minor spelling fixes for TCP code.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 17:13:47 -08:00
John Heffner 326f36e9e7 [TCP]: receive buffer growth limiting with mixed MTU
This is a patch for discussion addressing some receive buffer growing issues.
This is partially related to the thread "Possible BUG in IPv4 TCP window
handling..." last week.

Specifically it addresses the problem of an interaction between rcvbuf
moderation (receiver autotuning) and rcv_ssthresh.  The problem occurs when
sending small packets to a receiver with a larger MTU.  (A very common case I
have is a host with a 1500 byte MTU sending to a host with a 9k MTU.)  In
such a case, the rcv_ssthresh code is targeting a window size corresponding
to filling up the current rcvbuf, not taking into account that the new rcvbuf
moderation may increase the rcvbuf size.

One hunk makes rcv_ssthresh use tcp_rmem[2] as the size target rather than
rcvbuf.  The other changes the behavior when it overflows its memory bounds
with in-order data so that it tries to grow rcvbuf (the same as with
out-of-order data).

These changes should help my problem of mixed MTUs, and should also help the
case from last week's thread I think.  (In both cases though you still need
tcp_rmem[2] to be set much larger than the TCP window.)  One question is if
this is too aggressive at trying to increase rcvbuf if it's under memory
stress.

Orignally-from: John Heffner <jheffner@psc.edu>
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 17:11:48 -08:00
Stephen Hemminger 9772efb970 [TCP]: Appropriate Byte Count support
This is an updated version of the RFC3465 ABC patch originally
for Linux 2.6.11-rc4 by Yee-Ting Li. ABC is a way of counting
bytes ack'd rather than packets when updating congestion control.

The orignal ABC described in the RFC applied to a Reno style
algorithm. For advanced congestion control there is little
change after leaving slow start.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 17:09:53 -08:00
Stephen Hemminger 7faffa1c7f [TCP]: add tcp_slow_start helper
Move all the code that does linear TCP slowstart to one
inline function to ease later patch to add ABC support.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 17:07:24 -08:00
Stephen Hemminger 2d2abbab63 [TCP]: simplify microsecond rtt sampling
Simplify the code that comuputes microsecond rtt estimate used
by TCP Vegas. Move the callback out of the RTT sampler and into
the end of the ack cleanup.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 16:56:12 -08:00
Stephen Hemminger f4805eded7 [TCP]: fix congestion window update when using TSO deferal
TCP peformance with TSO over networks with delay is awful.
On a 100Mbit link with 150ms delay, we get 4Mbits/sec with TSO and
50Mbits/sec without TSO.

The problem is with TSO, we intentionally do not keep the maximum
number of packets in flight to fill the window, we hold out to until 
we can send a MSS chunk. But, we also don't update the congestion window 
unless we have filled, as per RFC2861.

This patch replaces the check for the congestion window being full
with something smarter that accounts for TSO.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 16:53:30 -08:00
Herbert Xu fb286bb299 [NET]: Detect hardware rx checksum faults correctly
Here is the patch that introduces the generic skb_checksum_complete
which also checks for hardware RX checksum faults.  If that happens,
it'll call netdev_rx_csum_fault which currently prints out a stack
trace with the device name.  In future it can turn off RX checksum.

I've converted every spot under net/ that does RX checksum checks to
use skb_checksum_complete or __skb_checksum_complete with the
exceptions of:

* Those places where checksums are done bit by bit.  These will call
netdev_rx_csum_fault directly.

* The following have not been completely checked/converted:

ipmr
ip_vs
netfilter
dccp

This patch is based on patches and suggestions from Stephen Hemminger
and David S. Miller.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 13:01:24 -08:00
Linus Torvalds b01a55a865 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-11-09 19:32:25 -08:00
Trond Myklebust 940e3318c3 [PATCH] SUNRPC: don't reencode when looping in call transmit.
If the call to xprt_transmit() fails due to socket buffer space
exhaustion, we do not need to re-encode the RPC message when we
loop back through call_transmit.

Re-encoding can actually end up triggering the WARN_ON() in
call_decode() if we re-encode something like a read() request and
auth->au_rslack has changed.
It can also cause us to increment the RPCSEC_GSS sequence number
beyond the limits of the allowed window.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 19:31:33 -08:00
Thomas Graf 482a8524f8 [NETLINK]: Generic netlink family
The generic netlink family builds on top of netlink and provides
simplifies access for the less demanding netlink users. It solves
the problem of protocol numbers running out by introducing a so
called controller taking care of id management and name resolving.

Generic netlink modules register themself after filling out their
id card (struct genl_family), after successful registration the
modules are able to register callbacks to command numbers by
filling out a struct genl_ops and calling genl_register_op(). The
registered callbacks are invoked with attributes parsed making
life of simple modules a lot easier.

Although generic netlink modules can request static identifiers,
it is recommended to use GENL_ID_GENERATE and to let the controller
assign a unique identifier to the module. Userspace applications
will then ask the controller and lookup the idenfier by the module
name.

Due to the current multicast implementation of netlink, the number
of generic netlink modules is restricted to 1024 to avoid wasting
memory for the per socket multiacst subscription bitmask.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 02:26:41 +01:00
Thomas Graf 9ac4a16983 [RTNETLINK]: Use generic netlink receive queue processor
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 02:26:40 +01:00
Thomas Graf 88fc2c8431 [XFRM]: Use generic netlink receive queue processor
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 02:26:40 +01:00
Thomas Graf 82ace47a72 [NETLINK]: Generic netlink receive queue processor
Introduces netlink_run_queue() to handle the receive queue of
a netlink socket in a generic way. Processes as much as there
was in the queue upon entry and invokes a callback function
for each netlink message found. The callback function may
refuse a message by returning a negative error code but setting
the error pointer to 0 in which case netlink_run_queue() will
return with a qlen != 0.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 02:26:40 +01:00
Thomas Graf a8f74b2288 [NETLINK]: Make netlink_callback->done() optional
Most netlink families make no use of the done() callback, making
it optional gets rid of all unnecessary dummy implementations.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 02:26:40 +01:00
Thomas Graf bfa83a9e03 [NETLINK]: Type-safe netlink messages/attributes interface
Introduces a new type-safe interface for netlink message and
attributes handling. The interface is fully binary compatible
with the old interface towards userspace. Besides type safety,
this interface features attribute validation capabilities,
simplified message contstruction, and documentation.

The resulting netlink code should be smaller, less error prone
and easier to understand.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-10 02:26:40 +01:00
Yasuyuki Kozakai 9fb9cbb108 [NETFILTER]: Add nf_conntrack subsystem.
The existing connection tracking subsystem in netfilter can only
handle ipv4.  There were basically two choices present to add
connection tracking support for ipv6.  We could either duplicate all
of the ipv4 connection tracking code into an ipv6 counterpart, or (the
choice taken by these patches) we could design a generic layer that
could handle both ipv4 and ipv6 and thus requiring only one sub-protocol
(TCP, UDP, etc.) connection tracking helper module to be written.

In fact nf_conntrack is capable of working with any layer 3
protocol.

The existing ipv4 specific conntrack code could also not deal
with the pecularities of doing connection tracking on ipv6,
which is also cured here.  For example, these issues include:

1) ICMPv6 handling, which is used for neighbour discovery in
   ipv6 thus some messages such as these should not participate
   in connection tracking since effectively they are like ARP
   messages

2) fragmentation must be handled differently in ipv6, because
   the simplistic "defrag, connection track and NAT, refrag"
   (which the existing ipv4 connection tracking does) approach simply
   isn't feasible in ipv6

3) ipv6 extension header parsing must occur at the correct spots
   before and after connection tracking decisions, and there were
   no provisions for this in the existing connection tracking
   design

4) ipv6 has no need for stateful NAT

The ipv4 specific conntrack layer is kept around, until all of
the ipv4 specific conntrack helpers are ported over to nf_conntrack
and it is feature complete.  Once that occurs, the old conntrack
stuff will get placed into the feature-removal-schedule and we will
fully kill it off 6 months later.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-09 16:38:16 -08:00
Ken-ichirou MATSUZAWA 9f0ede52a0 [IPV6]: ip6ip6_lock is not unlocked in error path.
From: Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp>

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:08:29 -08:00
Peter Chubb 44fd0261d3 [IPV6]: Fix fallout from CONFIG_IPV6_PRIVACY
Trying to build today's 2.6.14+git snapshot gives undefined references
to use_tempaddr

Looks like an ifdef got left out.

Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:05:47 -08:00
Krzysztof Piotr Oledzki 5fd52fe098 [NETFILTER] ctnetlink: ICMP_ID is u_int16_t not u_int8_t.
Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:04:32 -08:00
Krzysztof Piotr Oledzki 439a9994bb [NETFILTER] ctnetlink: Fix oops when no ICMP ID info in message
This patch fixes an userspace triggered oops. If there is no ICMP_ID
info the reference to attr will be NULL.

Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:04:08 -08:00
Pablo Neira Ayuso a856a19a9f [NETFILTER] ctnetlink: Add support to identify expectations by ID's
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:03:42 -08:00
Pablo Neira Ayuso fcda46128d [NETFILTER] ctnetlink: propagate error instaed of returning -EPERM
Propagate the error to userspace instead of returning -EPERM if the get
conntrack operation fails.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:03:26 -08:00
Pablo Neira Ayuso fe902a91ff [NETFILTER] ctnetlink: return -EINVAL if size is wrong
Return -EINVAL if the size isn't OK instead of -EPERM.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:03:09 -08:00
Yasuyuki Kozakai d63a928108 [NETFILTER]: stop tracking ICMP error at early point
Currently connection tracking handles ICMP error like normal packets
if it failed to get related connection. But it fails that after all.

This makes connection tracking stop tracking ICMP error at early point.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:02:45 -08:00
Harald Welte ed77de9fc6 [NETFILTER] nfnetlink: only load subsystems if CAP_NET_ADMIN is set
Without this patch, any user can cause nfnetlink subsystems to be
autoloaded.  Those subsystems however could add significant processing
overhead to packet processing, and would refuse any configuration messages
from non-CAP_NET_ADMIN processes anyway.

This patch follows a suggestion from Patrick McHardy.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:02:16 -08:00
Philip Craig 5978a9b82c [NETFILTER] PPTP helper: fix PNS-PAC expectation call id
The reply tuple of the PNS->PAC expectation was using the wrong call id.

So we had the following situation:
- PNS behind NAT firewall
- PNS call id requires NATing
- PNS->PAC gre packet arrives first

then the PNS->PAC expectation is matched, and the other expectation
is deleted, but the PAC->PNS gre packets do not match the gre conntrack
because the call id is wrong.

We also cannot use ip_nat_follow_master().

Signed-off-by: Philip Craig <philipc@snapgear.com>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:01:53 -08:00
Pablo Neira Ayuso 81e5c27d08 [NETFILTER] ctnetlink: get_conntrack can use GFP_KERNEL
ctnetlink_get_conntrack is always called from user context, so GFP_KERNEL
is enough.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:01:19 -08:00
Pablo Neira Ayuso 7a4fe3664b [NETFILTER] ctnetlink: kill unused includes
Kill some useless headers included in ctnetlink. They aren't used in any
way.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:00:47 -08:00
Pablo Neira Ayuso 119a318494 [NETFILTER] ctnetlink: add module alias to fix autoloading
Add missing module alias. This is a must to load ctnetlink on demand. For
example, the conntrack tool will fail if the module isn't loaded.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:00:29 -08:00
Pablo Neira Ayuso 02a78cdf42 [NETFILTER] ctnetlink: add marking support from userspace
This patch adds support for conntrack marking from user space.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 13:00:04 -08:00
Pablo Neira Ayuso 51df784ed7 [NETFILTER] ctnetlink: check if protoinfo is present
This fixes an oops triggered from userspace. If we don't pass information
about the private protocol info, the reference to attr will be NULL. This is
likely to happen in update messages.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 12:59:41 -08:00
Harald Welte a2506c0432 [NETFILTER] nfnetlink: nfattr_parse() can never fail, make it void
nfattr_parse (and thus nfattr_parse_nested) always returns success. So we
can make them 'void' and remove all the checking at the caller side.

Based on original patch by Pablo Neira Ayuso <pablo@netfilter.org>

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 12:59:13 -08:00
Yasuyuki Kozakai eaae4fa45e [NETFILTER]: refcount leak of proto when ctnetlink dumping tuple
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 12:58:46 -08:00
Yasuyuki Kozakai 46998f59c0 [NETFILTER]: packet counter of conntrack is 32bits
The packet counter variable of conntrack was changed to 32bits from 64bits.
This follows that change.
		    
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09 12:58:05 -08:00
Linus Torvalds a7c243b544 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-11-09 08:34:36 -08:00
Christoph Hellwig 49705b7743 [PATCH] sanitize lookup_hash prototype
->permission and ->lookup have a struct nameidata * argument these days to
pass down lookup intents.  Unfortunately some callers of lookup_hash don't
actually pass this one down.  For lookup_one_len() we don't have a struct
nameidata to pass down, but as this function is a library function only
used by filesystem code this is an acceptable limitation.  All other
callers should pass down the nameidata, so this patch changes the
lookup_hash interface to only take a struct nameidata argument and derives
the other two arguments to __lookup_hash from it.  All callers already have
the nameidata argument available so this is not a problem.

At the same time I'd like to deprecate the lookup_hash interface as there
are better exported interfaces for filesystem usage.  Before it can
actually be removed I need to fix up rpc_pipefs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:56:00 -08:00
Christoph Hellwig e4543eddfd [PATCH] add a vfs_permission helper
Most permission() calls have a struct nameidata * available.  This helper
takes that as an argument and thus makes sure we pass it down for lookup
intents and prepares for per-mount read-only support where we need a struct
vfsmount for checking whether a file is writeable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:58 -08:00
Christoph Hellwig e3305626e0 ieee80211: cleanup crypto list handling, other minor cleanups. 2005-11-09 01:01:04 -05:00
Jeff Garzik f24e09754b Merge rsync://bughost.org/repos/ieee80211-delta/ 2005-11-09 00:00:29 -05:00
Marcel Holtmann be9d122730 [Bluetooth]: Remove the usage of /proc completely
This patch removes all relics of the /proc usage from the Bluetooth
subsystem core and its upper layers. All the previous information are
now available via /sys/class/bluetooth through appropriate functions.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:57:38 -08:00
Marcel Holtmann 1ebb92521d [Bluetooth]: Add endian annotations to the core
This patch adds the endian annotations to the Bluetooth core.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:57:21 -08:00
Herbert Xu 89f5f0aeed [IPV4]: Fix ip_queue_xmit identity increment for TSO packets
When ip_queue_xmit calls ip_select_ident_more for IP identity selection
it gives it the wrong packet count for TSO packets.  The ip_select_*
functions expect one less than the number of packets, so we need to
subtract one for TSO packets.

This bug was diagnosed and fixed by Tom Young.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:41:56 -08:00
Jesper Juhl a51482bde2 [NET]: kfree cleanup
From: Jesper Juhl <jesper.juhl@gmail.com>

This is the net/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in net/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2005-11-08 09:41:34 -08:00
Julian Anastasov dc8103f25f [IPVS]: fix connection leak if expire_nodest_conn=1
There was a fix in 2.6.13 that changed the behaviour of
ip_vs_conn_expire_now function not to put reference to connection,
its callers should hold write lock or connection refcnt. But we
forgot to convert one caller, when the real server for connection
is unavailable caller should put the connection reference. It
happens only when sysctl var expire_nodest_conn is set to 1 and
such connections never expire. Thanks to Roberto Nibali who found
the problem and tested a 2.4.32-rc2 patch, which is equal to this
2.6 version. Patch for 2.4 is already sent to Marcelo.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Roberto Nibali <ratz@drugphish.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:40:05 -08:00
Thomas Graf b541ca2c5a [PKT_SCHED]: Correctly handle empty ematch trees
Fixes an invalid memory reference when the basic classifier
is used without any ematches but just actions.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:39:17 -08:00
YOSHIFUJI Hideaki 072047e4de [IPV6]: RFC3484 compliant source address selection
Choose more appropriate source address; e.g.
 - outgoing interface
 - non-deprecated
 - scope
 - matching label

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:30 -08:00
YOSHIFUJI Hideaki b1cacb6820 [IPV6]: Make ipv6_addr_type() more generic so that we can use it for source address selection.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:38:12 -08:00
YOSHIFUJI Hideaki 971f359ddc [IPV6]: Put addr_diff() into common header for future use.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-08 09:37:56 -08:00
Jeff Garzik 3133c5e896 Merge git://git.tuxdriver.com/git/netdev-jwl 2005-11-07 22:54:48 -05:00
Adrian Bunk fd7a516efb [PATCH] fix NET_RADIO=n, IEEE80211=y compile
This patch fixes the following compile error with CONFIG_NET_RADIO=n and
CONFIG_IEEE80211=y:

  LD      .tmp_vmlinux1
net/built-in.o: In function `ieee80211_rx':
: undefined reference to `wireless_spy_update'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-11-07 21:50:00 -05:00
Volker Braun e189277a3f Fix problem with WEP unicast key > index 0
The functions ieee80211_wx_{get,set}_encodeext fail if one tries to set
unicast (IW_ENCODE_EXT_GROUP_KEY not set) keys at key indices>0. But at
least some Cisco APs dish out dynamic WEP unicast keys at index !=0.

Signed-off-by: Volker Braun <volker.braun@physik.hu-berlin.de>
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07 16:19:02 -06:00
James Ketrenos 81f875208e scripts/Lindent on ieee80211 subsystem.
Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
2005-11-07 16:18:48 -06:00
Linus Torvalds 8e33ba4976 Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6 2005-11-07 08:05:11 -08:00
Linus Torvalds 8cde0776ec Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-11-07 08:04:01 -08:00
NeilBrown 80d188a643 [PATCH] knfsd: make sure svc_process call the correct pg_authenticate for multi-service port
If an RPC socket is serving multiple programs, then the pg_authenticate of
the first program in the list is called, instead of pg_authenticate for the
program to be run.

This does not cause a problem with any programs in the current kernel, but
could confuse future code.

Also set pg_authenticate for nfsd_acl_program incase it ever gets used.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:53:49 -08:00
Jeff Garzik a10b5aacea Remove linux/version.h include from drivers/net/phy/* and net/ieee80211/*.
Unused, and causes the files to be needlessly rebuilt in some cases.
2005-11-05 23:39:54 -05:00
Arnaldo Carvalho de Melo 2d43f1128a Merge branch 'red' of 84.73.165.173:/home/tgr/repos/net-2.6 2005-11-05 22:30:29 -02:00
Stephen Hemminger 6df716340d [TCP/DCCP]: Randomize port selection
This patch randomizes the port selected on bind() for connections
to help with possible security attacks. It should also be faster
in most cases because there is no need for a global lock.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 21:23:15 -02:00
Herbert Xu 6151b31c96 [NET]: Fix race condition in sk_stream_wait_connect
When sk_stream_wait_connect detects a state transition to ESTABLISHED
or CLOSE_WAIT prior to it going to sleep, it will return without
calling finish_wait and decrementing sk_write_pending.

This may result in crashes and other unintended behaviour.

The fix is to always call finish_wait and update sk_write_pending since
it is safe to do so even if the wait entry is no longer on the queue.

This bug was tracked down with the help of Alex Sidorenko and the
fix is also based on his suggestion.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 21:05:20 -02:00
Stephen Hemminger eb229c4cdc [NETEM]: Add version string
Add a version string to help support issues.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 20:59:21 -02:00
Stephen Hemminger 300ce174eb [NETEM]: Support time based reordering
Change netem to support packets getting reordered because of variations in
delay. Introduce a special case version of FIFO that queues packets in order
based on the netem delay.

Since netem is classful, those users that don't want jitter based reordering
can just insert a pfifo instead of the default.

This required changes to generic skbuff code to allow finer grain manipulation
of sk_buff_head.  Insertion into the middle and reverse walk.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 20:56:41 -02:00
Thomas Graf bdc450a0bb [PKT_SCHED]: (G)RED: Introduce hard dropping
Introduces a new flag TC_RED_HARDDROP which specifies that if ECN
marking is enabled packets should still be dropped once the
average queue length exceeds the maximum threshold.

This _may_ help to avoid global synchronisation during small
bursts of peers advertising but not caring about ECN. Use this
option very carefully, it does more harm than good if
(qth_max - qth_min) does not cover at least two average burst
cycles.

The difference to the current behaviour, in which we'd run into
the hard queue limit, is that due to the low pass filter of RED
short bursts are less likely to cause a global synchronisation.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:29 +01:00
Thomas Graf b38c7eef7e [PKT_SCHED]: GRED: Support ECN marking
Adds a new u8 flags in a unused padding area of the netlink
message. Adds ECN marking support to be used instead of dropping
packets immediately.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:29 +01:00
Thomas Graf d8f64e1960 [PKT_SCHED]: GRED: Fix restart of idle period in WRED mode upon dequeue and drop
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:28 +01:00
Thomas Graf 1e4dfaf9b9 [PKT_SCHED]: GRED: Cleanup and remove unnecessary code
Removes unnecessary includes, initializers, and simplifies
the code a bit.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:28 +01:00
Thomas Graf 6214e653cc [PKT_SCHED]: GRED: Remove auto-creation of default VQ
Since we are no longer depending on the default VQ to be always
allocated we can leave it up to the user to actually create it.
This gives the user the ability to leave it out on purpose and
enqueue packets directly to the device without applying the RED
algorithm.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:28 +01:00
Thomas Graf 7051703b99 [PKT_SCHED]: GRED: Dont abuse default VQ for equalizing
Introduces a new red parameter set for use in equalize mode,
although only the qavg variable and the idle period marker are
being used for now this makes it possible to allow a separate
parameter set to be used for equalize later on.

The use of this separate parameter set fixes a bogus start of
an idle period in gred_drop() which did start an idle period
on the default VQ even if equalize mode was disabled.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:28 +01:00
Thomas Graf 4a591834cf [PKT_SCHED]: GRED: Remove initd flag
The case when the default VQ is not set up yet is already handled
in a less error prone way.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:28 +01:00
Thomas Graf 18e3fb84e6 [PKT_SCHED]: GRED: Improve error handling and messages
Try to enqueue packets if we cannot associate it with a VQ, this
basically means that the default VQ has not been set up yet.

We must check if the VQ still exists while requeueing, the VQ
might have been changed between dequeue and the requeue of the
underlying qdisc.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:28 +01:00
Thomas Graf 716a1b40b0 [PKT_SCHED]: GRED: Introduce tc_index_to_dp()
Adds a transformation function returning the DP index for a
given skb according to its tc_index.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:27 +01:00
Thomas Graf edf7a7b1f0 [PKT_SCHED]: GRED: Use generic queue management interface
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:27 +01:00
Thomas Graf c3b553cdaf [PKT_SCHED]: GRED: Report congestion related drops as NET_XMIT_CN
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:27 +01:00
Thomas Graf 301d063c29 [PKT_SCHED]: GRED: Do not reset statistics in gred_reset/gred_change
Qdiscs are not supposed to reset statistics in reset() and while
changing parameters. My argumentation is that if the user wants
the counters to be reset he can simply remove and readd the
qdiscs, that's what most users do anyway.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:27 +01:00
Thomas Graf 22b33429ab [PKT_SCHED]: GRED: Use new generic red interface
Simplifies code a lot by separating the red algorithm and the
queueing logic. We now differentiate between probability marks
and forced marks but sum them together again to not break
backwards compatibility.

This brings GRED back to the level of RED and improves the
accuracy of the averge queue length calculations when stab
suggests a zero shift.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:27 +01:00
Thomas Graf f62d6b936d [PKT_SCHED]: GRED: Use central VQ change procedure
Introduces a function gred_change_vq() acting as a central point
to change VQ parameters. Fixes priority inheritance in rio mode
when the default DP equals 0. Adds proper locking during changes.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:27 +01:00
Thomas Graf a8aaa9958e [PKT_SCHED]: GRED: Report out-of-bound DPs as illegal
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:26 +01:00
Thomas Graf 6639607ed9 [PKT_SCHED]: GRED: Use a central table definition change procedure
Introduces a function gred_change_table_def() acting as a central
point to change the table definition.

Adds missing validations for table definition: MAX_DPs > DPs > 0
and def_DP < DPs thus fixing possible invalid memory reference
oopses. Only root could do it but having a typo crashing the
machine is a bit hard.

Adds missing locking while changing the table definition, the
operation of changing the number of DPs and removing shadowed VQs
may not be interrupted by a dequeue.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:26 +01:00
Thomas Graf e06368221c [PKT_SCHED]: GRED: Dump table definition
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:26 +01:00
Thomas Graf 05f1cc01b4 [PKT_SCHED]: GRED: Cleanup dumping
Avoids the allocation of a buffer by appending the VQs directly
to the skb and simplifies the code by using the appropriate
message construction macros.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:26 +01:00
Thomas Graf d6fd4e9667 [PKT_SCHED]: GRED: Transform grio to GRED_RIO_MODE
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:25 +01:00
Thomas Graf dea3f62852 [PKT_SCHED]: GRED: Cleanup equalize flag and add new WRED mode detection
Introduces a flags variable using bitops and transforms eqp to use
it. Converts the conditions of the form (wred && rio) to (wred)
since wred can only be enabled in rio mode anyway.

The patch also improves WRED mode detection. The current behaviour
does not allow WRED mode to be turned off again without removing
the whole qdisc first. The new algorithm checks each VQ against
each other looking for equal priorities every time a VQ is changed
or added. The performance is poor, O(n**2), but it's used only
during administrative tasks and the number of VQs is strictly
limited.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-11-05 22:02:25 +01:00