Commit Graph

7324 Commits

Author SHA1 Message Date
YOSHIFUJI Hideaki
85040bcb46 [IPV6] ADDRLABEL: Fix double free on label deletion.
If an entry is being deleted because it has only one reference, 
we immediately delete it and blindly register the rcu handler for it,
This results in oops by double freeing that object.

This patch fixes it by consolidating the code paths for the deletion;
let its rcu handler delete the object if it has no more reference.

Bug was found by Mitsuru Chinen <mitch@linux.vnet.ibm.com>

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:46:02 -08:00
Stephen Hemminger
ac97f75faa [IPV4] fib_trie: remove unneeded NULL check
Since fib_route_seq_show now uses hlist_for_each_entry(), the leaf
info can not be NULL.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:26 -08:00
Stephen Hemminger
f638a2f057 [IPV4] fib_trie: More whitespace cleanup.
Remove extra blank lines.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:25 -08:00
Patrick McHardy
7a9c1bd409 [NET_SCHED]: Use nla_policy for attribute validation in ematches
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:24 -08:00
Patrick McHardy
53b2bf3f8a [NET_SCHED]: Use nla_policy for attribute validation in actions
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:23 -08:00
Patrick McHardy
6fa8c0144b [NET_SCHED]: Use nla_policy for attribute validation in classifiers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:23 -08:00
Patrick McHardy
27a3421e48 [NET_SCHED]: Use nla_policy for attribute validation in packet schedulers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:22 -08:00
Patrick McHardy
5feb5e1aaa [NET_SCHED]: sch_api: introduce constant for rate table size
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:21 -08:00
Patrick McHardy
1587bac49f [NET_SCHED]: Use typeful attribute parsing helpers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:21 -08:00
Patrick McHardy
24beeab539 [NET_SCHED]: Use typeful attribute construction helpers
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:20 -08:00
Patrick McHardy
57e1c487a4 [NET_SCHED]: Use NLA_PUT_STRING for string dumping
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:19 -08:00
Patrick McHardy
4b3550ef53 [NET_SCHED]: Use nla_nest_start/nla_nest_end
Use nla_nest_start/nla_nest_end for dumping nested attributes.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:18 -08:00
Patrick McHardy
cee63723b3 [NET_SCHED]: Propagate nla_parse return value
nla_parse() returns more detailed errno codes, propagate them back on
error.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:18 -08:00
Patrick McHardy
ab27cfb85c [NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:17 -08:00
Patrick McHardy
c96c9471dd [NET_SCHED]: act_api: use nlmsg_parse
Convert open-coded nlmsg_parse to use the real function.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:16 -08:00
Patrick McHardy
6d834e04e5 [NET_SCHED]: act_api: fix netlink API conversion bug
Fix two invalid attribute accesses, indices start at 1 with the new
netlink API.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:15 -08:00
Patrick McHardy
b03f467200 [NET_SCHED]: sch_netem: use nla_parse_nested_compat
Replace open coded equivalent of nla_parse_nested_compat().

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:15 -08:00
Patrick McHardy
f5e5cb7553 [NET_SCHED]: sch_atm: fix format string warning
Fix format string warning introduces by the netlink API conversion:

net/sched/sch_atm.c:250: warning: format '%lu' expects type 'long unsigned int', but argument 3 has type 'int'.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:14 -08:00
Denis V. Lunev
dde1bc0e6f [NETNS]: Add namespace for ICMP replying code.
All needed API is done, the namespace is available when required from
the device on the DST entry from the incoming packet. So, just replace
init_net with proper namespace.

Other protocols will follow.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:13 -08:00
Denis V. Lunev
b5921910a1 [NETNS]: Routing cache virtualization.
Basically, this piece looks relatively easy. Namespace is already
available on the dst entry via device and the device is safe to
dereferrence. Compare it with one of a searcher and skip entry if
appropriate.

The only exception is ip_rt_frag_needed. So, add namespace parameter to it.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:13 -08:00
Patrick McHardy
7ba699c604 [NET_SCHED]: Convert actions from rtnetlink to new netlink API
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:11 -08:00
Patrick McHardy
add93b610a [NET_SCHED]: Convert classifiers from rtnetlink to new netlink API
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:11 -08:00
Patrick McHardy
1e90474c37 [NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API
Convert packet schedulers to use the netlink API. Unfortunately a gradual
conversion is not possible without breaking compilation in the middle or
adding lots of casts, so this patch converts them all in one step. The
patch has been mostly generated automatically with some minor edits to
at least allow seperate conversion of classifiers and actions.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:10 -08:00
Patrick McHardy
01480e1cf5 [NETLINK]: Add nla_append()
Used to append data to a message without a header or padding.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:09 -08:00
Patrick McHardy
2eb9d75c72 [NET_SCHED]: mark classifier ops __read_mostly
Additionally remove unnecessary NULL initilizations of the next pointer.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:08 -08:00
Patrick McHardy
62e3ba1b55 [NET_SCHED]: Move EXPORT_SYMBOL next to exported symbol
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:07 -08:00
Denis V. Lunev
f206351a50 [NETNS]: Add namespace parameter to ip_route_output_key.
Needed to propagate it down to the ip_route_output_flow.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:07 -08:00
Denis V. Lunev
f1b050bf7a [NETNS]: Add namespace parameter to ip_route_output_flow.
Needed to propagate it down to the __ip_route_output_key.

Signed_off_by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:06 -08:00
Denis V. Lunev
611c183ebc [NETNS]: Add namespace parameter to __ip_route_output_key.
This is only required to propagate it down to the
ip_route_output_slow.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:05 -08:00
Denis V. Lunev
b40afd0e5c [NETNS]: Add namespace parameter to ip_route_output_slow.
This function needs a net namespace to lookup devices, fib tables,
etc. in, so pass it there.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:05 -08:00
Denis V. Lunev
1ab352768f [NETNS]: Add namespace parameter to ip_dev_find.
in_dev_find() need a namespace to pass it to fib_get_table(), so add
an argument.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:04 -08:00
Denis V. Lunev
010278ec4c [NETNS]: Add netns parameter to fib_select_default.
Currently fib_select_default calls fib_get_table() with the
init_net. Prepare it to provide a correct namespace to lookup default
route.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:03 -08:00
Denis V. Lunev
64c2d53829 [IPV4]: Consolidate fib_select_default.
The difference in the implementation of the fib_select_default when
CONFIG_IP_MULTIPLE_TABLES is (not) defined looks
negligible. Consolidate it and place into fib_frontend.c.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:02 -08:00
Stephen Hemminger
d5ce8a0e97 [IPV4] fib_trie: avoid rescan on dump
This converts dumping (and flushing) of large route tables form O(N^2)
to O(N). If the route dump took multiple pages then the dump routine
gets called again. The old code kept track of location by counter, the
new code instead uses the last key.

This is a really big win ( 0.3 sec vs 12 sec) for big route tables.

One side effect is that if the table changes during the dump, then the
last key will not be found, and we will return -EBUSY.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:01 -08:00
Stephen Hemminger
9195bef7fb [IPV4] fib_trie: avoid extra search on delete
Get rid of extra search that made route deletion O(n).

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:00 -08:00
Stephen Hemminger
a88ee22925 [IPV4] fib_trie: dump table in sorted order
It is easier with TRIE to dump the data traversal rather than
interating over every possible prefix. This saves some time and makes
the dump come out in sorted order.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:11:00 -08:00
Stephen Hemminger
82cfbb0085 [IPV4] fib_trie: iterator recode
Remove the complex loop structure of nextleaf() and replace it with a
simpler tree walker. This improves the performance and is much
cleaner.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:59 -08:00
Stephen Hemminger
64347f786d [IPV4] fib_trie: dump message multiple part flag
Match fib_hash, and set NLM_F_MULTI to handle multiple part messages.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:58 -08:00
Stephen Hemminger
1328042e26 [IPV4] fib_trie: use hash list
The code to dump can use the existing hash chain rather than doing
repeated lookup.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:58 -08:00
Stephen Hemminger
936722922f [IPV4] fib_trie: compute size when needed
Compute the number of prefixes when needed, rather than doing bookeeping.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:57 -08:00
Stephen Hemminger
a07f5f508a [IPV4] fib_trie: style cleanup
Style cleanups:
      * make check_leaf return -1 or plen, rather than by reference
      * Get rid of #ifdef that is always set
      * split out embedded function calls in if statements.
      * checkpatch warnings

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:56 -08:00
Stephen Hemminger
bc3c8c1e02 [IPV4] fib_trie: put leaf nodes in a slab cache
This improves locality for operations that touch all the leaves.  Save
space since these entries don't need to be hardware cache aligned.

Signed-off-by: Stephen Hemminger <stephen.hemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:56 -08:00
Jan Engelhardt
a1f6f5a768 [AF_X25]: constify function pointer tables
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:55 -08:00
Ross Burton
91cde6f7d2 [IrDA]: LMP discovery timer not started by default
By default, LMP sets up a 3 seconds timer for discovery.
We don't need it until discovery is set to 1.

Signed-off-by: Ross Burton <ross@openedhand.com>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:54 -08:00
Masakazu Mokuno
4248d2f811 WEXT: remove unused variable
As event_type_pk_size[] is not used,  Remove it.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:48 -08:00
Ron Rindjunsky
71ebb4aac8 mac80211: fix rx flow sparse errors, make functions static
This patch adds static declarations to functions in the Rx flow in order to
eliminate sparse errors

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:46 -08:00
Stefano Brivio
c09c7237ea rc80211-pid: fix last_sample initialization
Fix last_sample initialization. kzalloc'ing the per-STA data wasn't enough,
as jiffies can assume negative values as well. This fixes a bug which
prevented correct PID operation for a while after booting.

Thanks to Michael Buesch for reporting this.

Reported-and-tested-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:43 -08:00
Johannes Berg
f99b751fca mac80211: fix RCU locking in __ieee80211_rx_handle_packet
Commit c7a51bda ("mac80211: restructure __ieee80211_rx") extracted
__ieee80211_rx_handle_packet out of __ieee80211_rx and hence changed
the locking rules for __ieee80211_rx_handle_packet(), it is now
invoked under RCU lock. There is, however, one instance left where
it contains an rcu_read_unlock() in an error path, which is a bug.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:43 -08:00
Guy Cohen
a8bdf29c6c mac80211: Assign correct TID for local bridged packets
This patch assigns correct TID to frames transmitted between
two stations in the same BSS in AP mode.
The problem is that skb->protocol is not set to ETH_P_IP and it is wrong
to use that field at this stage.
The fix compares the LLC/Protocol headers explicitly to check if the
encapsulated frame is IP frame

Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-28 15:10:41 -08:00
Eric Dumazet
69a73829db [DST]: shrinks sizeof(struct rtable) by 64 bytes on x86_64
On x86_64, sizeof(struct rtable) is 0x148, which is rounded up to
0x180 bytes by SLAB allocator.

We can reduce this to exactly 0x140 bytes, without alignment overhead,
and store 12 struct rtable per PAGE instead of 10.

rate_tokens is currently defined as an "unsigned long", while its
content should not exceed 6*HZ. It can safely be converted to an
unsigned int.

Moving tclassid right after rate_tokens to fill the 4 bytes hole
permits to save 8 bytes on 'struct dst_entry', which finally permits
to save 8 bytes on 'struct rtable'

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 15:10:41 -08:00