- 05 10月, 2010 3 次提交
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由 Nicolas Kaiser 提交于
Remove duplicated include. Signed-off-by: NNicolas Kaiser <nikai@nikai.net> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Eric Dumazet 提交于
ipt_LOG & ip6t_LOG use lot of calls to printk() and use a lock in a hope several cpus wont mix their output in syslog. printk() being very expensive [1], its better to call it once, on a prebuilt and complete line. Also, with mixed IPv4 and IPv6 trafic, separate IPv4/IPv6 locks dont avoid garbage. I used an allocation of a 1024 bytes structure, sort of seq_printf() but with a fixed size limit. Use a static buffer if dynamic allocation failed. Emit a once time alert if buffer size happens to be too short. [1]: printk() has various features like printk_delay()... Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Stephen Hemminger 提交于
The functions nf_nat_proto_find_get and nf_nat_proto_put are only used internally in nf_nat_core. This might break some out of tree NAT module. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 04 10月, 2010 12 次提交
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由 Simon Horman 提交于
Add the SIP callid as a key for persistence. This allows multiple connections from the same IP address to be differentiated on the basis of the callid. When used in conjunction with the persistence mask, it allows connections from different IP addresses to be aggregated on the basis of the callid. It is envisaged that a persistence mask of 0.0.0.0 will be a useful setting. That is, ignore the source IP address when checking for persistence. It is envisaged that this option will be used in conjunction with one-packet scheduling. This only works with UDP and cannot be made to work with TCP within the current framework. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Fall back to normal persistence handling if the persistence engine fails to recognise a packet. This way, at least the packet will go somewhere. It is envisaged that iptables could be used to block packets such if this is not desired although nf_conntrack_sip would likely need to be enhanced first. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Allow the persistence engine of a virtual service to be set, edited and unset. This feature only works with the netlink user-space interface. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
This is based heavily on the scheduler management code Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
This shouldn't break compatibility with userspace as the new data is at the end of the line. I have confirmed that this doesn't break ipvsadm, the main (only?) user-space user of this data. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
In general NULL arguments aren't passed by the few callers that exist, so don't test for them. The exception is to make passing NULL to ip_vs_unbind_scheduler() a noop. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
This simplifies caller logic sightly. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Compact ip_vs_sched_persist() by setting up parameters and calling functions once. Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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由 Simon Horman 提交于
Signed-off-by: NSimon Horman <horms@verge.net.au> Acked-by: NJulian Anastasov <ja@ssi.bg>
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- 29 9月, 2010 1 次提交
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由 Pablo Neira Ayuso 提交于
This patch adds the basic infrastructure to support user-space expectation helpers via ctnetlink and the netfilter queuing infrastructure NFQUEUE. Basically, this patch: * adds NF_CT_EXPECT_USERSPACE flag to identify user-space created expectations. I have also added a sanity check in __nf_ct_expect_check() to avoid that kernel-space helpers may create an expectation if the master conntrack has no helper assigned. * adds some branches to check if the master conntrack helper exists, otherwise we skip the code that refers to kernel-space helper such as the local expectation list and the expectation policy. * allows to set the timeout for user-space expectations with no helper assigned. * a list of expectations created from user-space that depends on ctnetlink (if this module is removed, they are deleted). * includes USERSPACE in the /proc output for expectations that have been created by a user-space helper. This patch also modifies ctnetlink to skip including the helper name in the Netlink messages if no kernel-space helper is set (since no user-space expectation has not kernel-space kernel assigned). You can access an example user-space FTP conntrack helper at: http://people.netfilter.org/pablo/userspace-conntrack-helpers/nf-ftp-helper-userspace-POC.tar.bzSigned-off-by: NPablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 22 9月, 2010 4 次提交
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由 Pablo Neira Ayuso 提交于
With this patch, you can specify the expectation flags for user-space created expectations. Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Pablo Neira Ayuso 提交于
This patch adds the missing validation of the CTA_EXPECT_ZONE attribute in the ctnetlink code. Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Pablo Neira Ayuso 提交于
This patch improves the situation in which the expectation table is full for conntrack NAT helpers. Basically, we give up if we don't find a place in the table instead of looping over nf_ct_expect_related() with a different port (we should only do this if it returns -EBUSY, for -EMFILE or -ESHUTDOWN I think that it's better to skip this). Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Julian Anastasov 提交于
Change the usage of svc usecnt during command execution: - we check if svc is registered but we do not need to hold usecnt reference while under __ip_vs_mutex, only the packet handling needs it during scheduling - change __ip_vs_service_get to __ip_vs_service_find and __ip_vs_svc_fwm_get to __ip_vs_svc_fwm_find because now caller will increase svc->usecnt - put common code that calls update_service in __ip_vs_update_dest - put common code in ip_vs_unlink_service() and use it to unregister the service - add comment that svc should not be accessed after ip_vs_del_service anymore - all IP_VS_WAIT_WHILE calls are now unified: usecnt > 0 - Properly log the app ports As result, some problems are fixed: - possible use-after-free of svc in ip_vs_genl_set_cmd after ip_vs_del_service because our usecnt reference does not guarantee that svc is not freed on refcnt==0, eg. when no dests are moved to trash - possible usecnt leak in do_ip_vs_set_ctl after ip_vs_del_service when the service is not freed now, for example, when some destionations are moved into trash and svc->refcnt remains above 0. It is harmless because svc is not in hash anymore. Signed-off-by: NJulian Anastasov <ja@ssi.bg> Acked-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 21 9月, 2010 3 次提交
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由 Changli Gao 提交于
Since we don't change the tuple in the original direction, we can save it in ct->tuplehash[IP_CT_DIR_REPLY].hnode.pprev for __nf_conntrack_confirm() use. __hash_conntrack() is split into two steps: hash_conntrack_raw() is used to get the raw hash, and __hash_bucket() is used to get the bucket id. In SYN-flood case, early_drop() doesn't need to recompute the hash again. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Julian Anastasov 提交于
Add new sysctl flag "snat_reroute". Recent kernels use ip_route_me_harder() to route LVS-NAT responses properly by VIP when there are multiple paths to client. But setups that do not have alternative default routes can skip this routing lookup by using snat_reroute=0. Signed-off-by: NJulian Anastasov <ja@ssi.bg> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Julian Anastasov 提交于
Add more code to IPVS to work with Netfilter connection tracking and fix some problems. - Allow IPVS to be compiled without connection tracking as in 2.6.35 and before. This can avoid keeping conntracks for all IPVS connections because this costs memory. ip_vs_ftp still depends on connection tracking and NAT as implemented for 2.6.36. - Add sysctl var "conntrack" to enable connection tracking for all IPVS connections. For loaded IPVS directors it needs tuning of nf_conntrack_max limit. - Add IP_VS_CONN_F_NFCT connection flag to request the connection to use connection tracking. This allows user space to provide this flag, for example, in dest->conn_flags. This can be useful to request connection tracking per real server instead of forcing it for all connections with the "conntrack" sysctl. This flag is set currently only by ip_vs_ftp and of course by "conntrack" sysctl. - Add ip_vs_nfct.c file to hold all connection tracking code, by this way main code should not depend of netfilter conntrack support. - Return back the ip_vs_post_routing handler as in 2.6.35 and use skb->ipvs_property=1 to allow IPVS to work without connection tracking Connection tracking: - most of the code is already in 2.6.36-rc - alter conntrack reply tuple for LVS-NAT connections when first packet from client is forwarded and conntrack state is NEW or RELATED. Additionally, alter reply for RELATED connections from real server, again for packet in original direction. - add IP_VS_XMIT_TUNNEL to confirm conntrack (without altering reply) for LVS-TUN early because we want to call nf_reset. It is needed because we add IPIP header and the original conntrack should be preserved, not destroyed. The transmitted IPIP packets can reuse same conntrack, so we do not set skb->ipvs_property. - try to destroy conntrack when the IPVS connection is destroyed. It is not fatal if conntrack disappears before that, it depends on the used timers. Fix problems from long time: - add skb->ip_summed = CHECKSUM_NONE for the LVS-TUN transmitters Signed-off-by: NJulian Anastasov <ja@ssi.bg> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 17 9月, 2010 5 次提交
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由 Julian Anastasov 提交于
- the sync protocol supports 16 bits only, so bits 0..15 should be used only for flags that should go to backup server, bits 16 and above should be allocated for flags not sent to backup. - use IP_VS_CONN_F_DEST_MASK as mask of connection flags in destination that can be changed by user space - allow IP_VS_CONN_F_ONE_PACKET to be set in destination Signed-off-by: NJulian Anastasov <ja@ssi.bg> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Changli Gao 提交于
nf_conntrack_alloc() isn't called with nf_conntrack_lock locked, so hash random initializing code maybe executed more than once on different CPUs. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Changli Gao 提交于
When alloc_null_binding(), no IP_NAT_RNAGE_MAP_IPS in flags means no IP address translation is needed. It isn't necessary to specify the address explicitly. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Changli Gao 提交于
Eliminate nf_nat_used_tuple() to save some CPU cycles when there is no other choice. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Changli Gao 提交于
The field family of xt_target should be NFPROTO_IPV4, though NFPROTO_IPV4 and AF_INET are the same. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 16 9月, 2010 1 次提交
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由 Changli Gao 提交于
Add a static function nf_nat_csum() to replace the duplicate code in nf_nat_mangle_udp_packet() and __nf_nat_mangle_tcp_packet(). Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 15 9月, 2010 1 次提交
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由 Jean Delvare 提交于
The code is quite convoluted, simplify it. This also avoids calling e1000_request_irq() without testing the value it returned, which was bad. Signed-off-by: NJean Delvare <jdelvare@suse.de> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 9月, 2010 10 次提交
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由 Andy Shevchenko 提交于
Signed-off-by: NAndy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dmitry Kravkov 提交于
Default number of rx buffers will be divided equally between allocated queues. This will decrease amount of pre-allocated buffers on systems with multiple CPUs. User can override this behavior with ethtool -G. Minimum amount of rx buffers per queue set to 128. Reported-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDmitry Kravkov <dmitry@broadcom.com> Signed-off-by: NEilon Greenstein <eilong@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ondrej Zary 提交于
Empty received URBs are currently counted as errors but the device sends them sometimes as part of regular traffic - so remove this check. Signed-off-by: NOndrej Zary <linux@rainbow-software.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ondrej Zary 提交于
Fix that usb_string() return value is not checked for error (negative value). Also change the ignore message a bit and lower its level to info. Signed-off-by: NOndrej Zary <linux@rainbow-software.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Joe Perches 提交于
Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andreas Schwab 提交于
Modifying an object twice without an intervening sequence point is undefined. Signed-off-by: NAndreas Schwab <schwab@linux-m68k.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andreas Schwab 提交于
Modifying an object twice without an intervening sequence point is undefined. Signed-off-by: NAndreas Schwab <schwab@linux-m68k.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Denis Kirjanov 提交于
This patch to adds support for PM hooks into sundance driver Signed-off-by: NDenis Kirjanov <dkirjanov@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Allocate hash tables for every online cpus, not every possible ones. NUMA aware allocations. Dont use a full page on arches where PAGE_SIZE > 1024*sizeof(void *) misc: __percpu , __read_mostly, __cpuinit annotations flow_compare_t is just an "unsigned long" Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ben Hutchings 提交于
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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