- 28 Jan, 2008 40 commits
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Pavel Emelyanov authored
This one is used in quite many places in the networking code and seems to big to be inline. After the patch net/ipv4/build-in.o loses ~650 bytes: add/remove: 2/0 grow/shrink: 0/5 up/down: 461/-1114 (-653) function old new delta __inet_hash_nolisten - 282 +282 __inet_hash - 179 +179 tcp_sacktag_write_queue 2255 2254 -1 __inet_lookup_listener 284 274 -10 tcp_v4_syn_recv_sock 755 493 -262 tcp_v4_hash 389 35 -354 inet_hash_connect 1086 599 -487 This version addresses the issue pointed by Eric, that while being inline this function was optimized by gcc in respect to the 'listen_possible' argument. Signed-off-by:
Pavel Emelyanov <xemul@openvz.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
The Security Considerations section of RFC 5061 has the following text: If an SCTP endpoint that supports this extension receives an INIT that indicates that the peer supports the ASCONF extension but does NOT support the [RFC4895] extension, the receiver of such an INIT MUST send an ABORT in response. Note that an implementation is allowed to silently discard such an INIT as an option as well, but under NO circumstance is an implementation allowed to proceed with the association setup by sending an INIT-ACK in response. An implementation that receives an INIT-ACK that indicates that the peer does not support the [RFC4895] extension MUST NOT send the COOKIE-ECHO to establish the association. Instead, the implementation MUST discard the INIT-ACK and report to the upper- layer user that an association cannot be established destroying the Transmission Control Block (TCB). Follow the recomendations. Signed-off-by:
Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by:
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Vlad Yasevich authored
ADD-IP spec has a special case for processing ABORTs: F4) ... One special consideration is that ABORT Chunks arriving destined to the IP address being deleted MUST be ignored (see Section 5.3.1 for further details). Check if the address we received on is in the DEL state, and if so, ignore the ABORT. Signed-off-by: -
Vlad Yasevich authored
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Vlad Yasevich authored
The processing of the ASCONF chunks has changed a lot in the spec. New items are: 1. A list of ASCONF-ACK chunks is now cached 2. The source of the packet is used in response. 3. New handling for unexpect ASCONF chunks. Signed-off-by: -
Vlad Yasevich authored
C4) Both ASCONF and ASCONF-ACK Chunks MUST NOT be sent in any SCTP state except ESTABLISHED, SHUTDOWN-PENDING, SHUTDOWN-RECEIVED, and SHUTDOWN-SENT. Signed-off-by: -
Vlad Yasevich authored
ADD-IP draft section 5.2 specifies that if an association can not be found using the source and destination of the IP packet, then, if the packet contains ASCONF chunks, the Address Parameter TLV should be used to lookup an association. Signed-off-by:
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Vlad Yasevich authored
The ADD-IP "Set Primary IP Address" parameter is allowed in the INIT/INIT-ACK exchange. Allow processing of this parameter during the INIT/INIT-ACK. Signed-off-by:
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Vlad Yasevich authored
The Address Parameter in the parameter list of the ASCONF chunk may be a wildcard address. In this case special processing is required. For the 'add' case, the source IP of the packet is added. In the 'del' case, all addresses except the source IP of packet are removed. In the "mark primary" case, the source address is marked as primary. Signed-off-by:
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Vlad Yasevich authored
Now that we support AUTH, discard unauthenticated ASCONF and ASCONF ACK chunks as mandated in the ADD-IP spec. Signed-off-by:
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Herbert Xu authored
It appears that I've managed to create two different functions both called xfrm6_tunnel_output. This is because we have the plain tunnel encapsulation named xfrmX_tunnel as well as the tunnel-mode encapsulation which lives in the files xfrmX_mode_tunnel.c. This patch renames functions from the latter to use the xfrmX_mode_tunnel prefix to avoid name-space conflicts. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Mattias Nissler authored
Add a new rate control algorithm based on a PID controller. It samples the percentage of failed frames over time, feeds the result into the controller and uses its output to control the TX rate. Signed-off-by:
Mattias Nissler <mattias.nissler@gmx.de> Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Mattias Nissler authored
Move some code out of rc80211_simple since it's probably needed for all rate selection algorithms, and fix iwlwifi accordingly. While at it, clean up the rate_control_get_rate() interface. Signed-off-by:
Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by:
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Ron Rindjunsky authored
This patch fixes should_drop_frame function to pass in ps poll control frames required for power save functioanlity. Interface types that do not have interest for PS POLL frames now drop it in handler. Signed-off-by:
Ron Rindjunsky <ron.rindjunsky@intel.com> Acked-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Herbert Xu authored
The SNMP macros use raw_smp_processor_id() in process context which is illegal because the process may be preempted and then migrated to another CPU. This patch makes it use get_cpu/put_cpu to disable preemption. Signed-off-by:
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Joe Perches authored
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Joe Perches <joe@perches.com> Signed-off-by:
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Joe Perches authored
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Joe Perches authored
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Herbert Xu authored
While merging the IPsec output path I moved the encapsulation output operation to the top of the loop so that it sits outside of the locked section. Unfortunately in doing so it now sits in front of the space check as well which could be a fatal error. This patch rearranges the calls so that the space check happens as the thing on the output path. This patch also fixes an incorrect goto should the encapsulation output fail. Thanks to Kazunori MIYAZAWA for finding this bug. Signed-off-by:
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Patrick McHardy authored
The NETFILTER_ADVANCED option hides lots of the rather obscure netfilter options when disabled and provides defaults (M) that should allow to run a distribution firewall without further thinking. Defaults to 'y' to avoid breaking current configurations. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Patrick McHardy authored
Apply Eric Dumazet's jhash optimizations where applicable. Quoting Eric: Thanks to jhash, hash value uses full 32 bits. Instead of returning hash % size (implying a divide) we return the high 32 bits of the (hash * size) that will give results between [0 and size-1] and same hash distribution. On most cpus, a multiply is less expensive than a divide, by an order of magnitude. Signed-off-by:
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Eric Dumazet authored
This patch generalizes the (CONFIG_IP6_NF_IPTABLES || CONFIG_IP6_NF_IPTABLES_MODULE) test done in hashlimit_init_dst() to all the xt_hashlimit module. This permits a size reduction of "struct dsthash_dst". This saves memory and cpu for IPV4 only hosts. Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
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Eric Dumazet authored
1) Using jhash2() instead of jhash() is a litle bit faster if applicable. 2) Thanks to jhash, hash value uses full 32 bits. Instead of returning hash % size (implying a divide) we return the high 32 bits of the (hash * size) that will give results between [0 and size-1] and same hash distribution. On most cpus, a multiply is less expensive than a divide, by an order of magnitude. Signed-off-by:
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Jan Engelhardt authored
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Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by:
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Jan Engelhardt authored
Parenthesize macro parameters. Signed-off-by:
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Jan Engelhardt authored
A few netfilter modules provide their own union of IPv4 and IPv6 address storage. Will unify that in this patch series. (1/4): Rename union nf_conntrack_address to union nf_inet_addr and move it to x_tables.h. Signed-off-by:
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Jan Engelhardt authored
Use %u format specifiers as ->family is unsigned. Signed-off-by:
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Patrick McHardy authored
We need to use rcu_assign_pointer/rcu_dereference to avoid races. Also remove an obsolete CONFIG_IP_NAT_NEEDED ifdef. Signed-off-by:
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Patrick McHardy authored
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Patrick McHardy authored
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Patrick McHardy authored
Similar to Maciej Soltysiak's ipt_LOG patch, include GID in addition to UID in netlink message. Signed-off-by:
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Patrick McHardy authored
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Patrick McHardy authored
Currently we return EINVAL for "instance exists", "allocation failed" and "module unloaded below us", which is completely inapproriate. Signed-off-by:
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Patrick McHardy authored
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Patrick McHardy authored
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Patrick McHardy authored
Similar to the nfnetlink_queue fixes: The peer_pid must be checked in all cases when a logging instance exists, additionally we must check whether an instance exists before attempting to configure it to avoid NULL ptr dereferences. Signed-off-by:
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Patrick McHardy authored
Whatever that comment tries to say, I don't get it and it looks like a leftover from the time when RCU wasn't used properly. Signed-off-by:
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Patrick McHardy authored
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Patrick McHardy authored
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Patrick McHardy authored
nf_nat_setup_info gets the hook number and translates that to the manip type to perform. This is a relict from the time when one manip per hook could exist, the exact hook number doesn't matter anymore, its converted to the manip type. Most callers already know what kind of NAT they want to perform, so pass the maniptype in directly. Signed-off-by:
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