- 06 Nov, 2005 1 commit
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Arnaldo Carvalho de Melo authored
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- 05 Nov, 2005 38 commits
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Stephen Hemminger authored
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>
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Herbert Xu authored
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:
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Stephen Hemminger authored
Add a version string to help support issues. Signed-off-by:
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Stephen Hemminger authored
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:
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Thomas Graf authored
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:
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Thomas Graf authored
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:
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Thomas Graf authored
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Thomas Graf authored
Removes unnecessary includes, initializers, and simplifies the code a bit. Signed-off-by:
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Thomas Graf authored
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:
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Thomas Graf authored
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:
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Thomas Graf authored
The case when the default VQ is not set up yet is already handled in a less error prone way. Signed-off-by:
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Thomas Graf authored
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:
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Thomas Graf authored
Adds a transformation function returning the DP index for a given skb according to its tc_index. Signed-off-by:
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Thomas Graf authored
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Thomas Graf authored
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Thomas Graf authored
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:
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Thomas Graf authored
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:
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Thomas Graf authored
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:
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Thomas Graf authored
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Thomas Graf authored
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:
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Thomas Graf authored
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Thomas Graf authored
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:
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Thomas Graf authored
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Thomas Graf authored
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:
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Thomas Graf authored
Removes the skb trimming code which is not needed since we never touch the skb upon failure. Removes unnecessary includes, initializers, and simplifies the code a bit. Removes Jamal's obsolete email addresses upon his own request. Signed-off-by:
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Thomas Graf authored
We should not interrupt and restart an idle period while idling already. Signed-off-by:
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Thomas Graf authored
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Thomas Graf authored
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. Signed-off-by:
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Thomas Graf authored
Changes IP_ECN_set_ce() and IP6_ECN_set_ce() to return 0 if the CE bits could not bet set because none of the ECT bits are set or 1 if the CE bits are already set or have been successfully set. Introduces INET_ECN_set_ce(skb) to enable CE bits for all supported protocols. Signed-off-by:
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Thomas Graf authored
Extracts the RED algorithm from sch_red.c and puts it into include/net/red.h for use by other RED based modules. The statistics are extended to be more fine grained in order to differ between probability/forced marks/drops. We now reset the average queue length when setting new parameters, leaving it might result in an unreasonable qavg for a while depending on the value of W. Signed-off-by:
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Stephen Hemminger authored
Convert netem to use PSCHED_LESS and warn if requeue fails. With some of the psched clock sources, the subtraction doesn't work always work right without wrapping. Signed-off-by:
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Harald Welte authored
With the new nf_queue generalization in 2.6.14, we've introduced a bug that causes an oops as soon as a packet is queued but no queue handler registered. This patch fixes it. Signed-off-by:
Harald Welte <laforge@netfilter.org> Signed-off-by:
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Harald Welte authored
There's a missing dependency from the CONNMARK target to ip_conntrack. Signed-off-by:
Pablo Neira Ayuso <pablo@eurodev.net> Signed-off-by:
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Harald Welte authored
These is a cleanup patch, kzalloc can be used in a couple of cases Signed-off-by:
Samir Bellabes <sbellabes@mandriva.com> Signed-off-by:
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Harald Welte authored
It's not necessary to free skb if netlink_unicast() failed. Signed-off-by:
Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by:
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Harald Welte authored
The unknown protocol is used as a fallback when a protocol isn't known. Hence we cannot handle it failing, so don't set ".me". It's OK, since we only grab a reference from within the same module (iptable_nat.ko), so we never take the module refcount from 0 to 1. Also, remove the "protocol is NULL" test: it's never NULL. Signed-off-by:
Rusty Rusty <rusty@rustcorp.com.au> Signed-off-by:
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Harald Welte authored
This endianness bug slipped through while changing the 'gre.key' field in the conntrack tuple from 32bit to 16bit. None of my tests caught the problem, since the linux pptp client always has '0' as call id / gre key. Only windows clients actually trigger the bug. Signed-off-by:
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Harald Welte authored
This patch fixes compilation of the PPTP conntrack helper when NAT is configured off. Signed-off-by:
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- 04 Nov, 2005 1 commit
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Chuck Lever authored
Fix some dprintk's so that NLM, NFS client, and RPC client compile cleanly if CONFIG_SYSCTL is disabled. Test plan: Compile kernel with CONFIG_NFS enabled and CONFIG_SYSCTL disabled. Signed-off-by:
Chuck Lever <cel@netapp.com> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com>
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