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path: root/net/ipv6/fib6_rules.c
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2009-12-03net: Allow fib_rule_unregister to batchEric W. Biederman1-15/+7
Refactor the code so fib_rules_register always takes a template instead of the actual fib_rules_ops structure that will be used. This is required for network namespace support so 2 out of the 3 callers already do this, it allows the error handling to be made common, and it allows fib_rules_unregister to free the template for hte caller. Modify fib_rules_unregister to use call_rcu instead of syncrhonize_rcu to allw multiple namespaces to be cleaned up in the same rcu grace period. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03net 04/05: fib_rules: allow to delete local rulePatrick McHardy1-1/+1
commit d124356ce314fff22a047ea334379d5105b2d834 Author: Patrick McHardy <kaber@trash.net> Date: Thu Dec 3 12:16:35 2009 +0100 net: fib_rules: allow to delete local rule Allow to delete the local rule and recreate it with a higher priority. This can be used to force packets with a local destination out on the wire instead of routing them to loopback. Additionally this patch allows to recreate rules with a priority of 0. Combined with the previous patch to allow oif classification, a socket can be bound to the desired interface and packets routed to the wire like this: # move local rule to lower priority ip rule add pref 1000 lookup local ip rule del pref 0 # route packets of sockets bound to eth0 to the wire independant # of the destination address ip rule add pref 100 oif eth0 lookup 100 ip route add default dev eth0 table 100 Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-21net: Remove unused parameter from fill method in fib_rules_ops.Rami Rosen1-1/+1
The netlink message header (struct nlmsghdr) is an unused parameter in fill method of fib_rules_ops struct. This patch removes this parameter from this method and fixes the places where this method is called. (include/net/fib_rules.h) Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-17ipv4: remove an unused parameter from configure method of fib_rules_ops.Rami Rosen1-1/+1
Signed-off-by: Rami Rosen <ramirose@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-15netns: Add network namespace argument to rt6_fill_node() and ↵Brian Haley1-1/+2
ipv6_dev_get_saddr() ipv6_dev_get_saddr() blindly de-references dst_dev to get the network namespace, but some callers might pass NULL. Change callers to pass a namespace pointer instead. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-11[IPV6] FIB_RULE: Sparse: fib6_rules_cleanup() is of void.YOSHIFUJI Hideaki1-1/+1
| net/ipv6/fib6_rules.c:319:2: warning: returning void-valued expression Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.YOSHIFUJI Hideaki1-1/+1
Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-25[IPV6]: Support Source Address Selection API (RFC5014).YOSHIFUJI Hideaki1-1/+11
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-05[NETNS][IPV6] rt6_info - move rt6_info structure inside the namespaceDaniel Lezcano1-8/+9
The rt6_info structures are moved inside the network namespace structure. All references to these structures are now relative to the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05[NETNS][IPV6] rt6_info - make rt6_info accessed as a pointerDaniel Lezcano1-6/+6
This patch make mindless changes and prepares the code to use dynamic allocation for rt6_info structure. The code accesses the rt6_info structure as a pointer instead of a global static variable. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] fib6_rules - handle several network namespacesDaniel Lezcano1-36/+46
The fib6_rules_ops is moved to the network namespace structure. All references are changed to have it relatively to it. Each time a network namespace is created a new fib6_rules_ops is allocated, initialized and stored into the network namespace structure. The common part of the fib rules is namespace aware, so it is quite easy to retrieve the network namespace from the rules and use it in the different callbacks. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] fib6 rule - dynamic allocation of the rules struct opsDaniel Lezcano1-9/+17
The fib6_rules_ops structure is dynamically allocated, so that allows to make several instances of it per network namespace. The global static fib6_rules_ops structure is renamed to fib6_rules_ops_template in order to quickly memcopy it for the structure initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] ip6_fib - make it per network namespaceDaniel Lezcano1-4/+4
The fib table for ipv6 are moved to the network namespace structure. All references to them are made relatively to the network namespace. All external calls to the ip6_fib functions taking the network namespace parameter are made using the init_net variable, so the ip6_fib engine is ready for the namespaces but the callers not yet. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().YOSHIFUJI Hideaki1-2/+2
Since most users of ipv6_get_saddr() pass non-NULL as dst argument, use ipv6_dev_get_saddr() directly. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-01-29[NETNS]: FIB rules API cleanup.Denis V. Lunev1-2/+2
Remove struct net from fib_rules_register(unregister)/notify_change paths and diet code size a bit. add/remove: 0/0 grow/shrink: 10/12 up/down: 35/-100 (-65) function old new delta notify_rule_change 273 280 +7 trie_show_stats 471 475 +4 fn_trie_delete 473 477 +4 fib_rules_unregister 144 148 +4 fib4_rule_compare 119 123 +4 resize 2842 2845 +3 fn_trie_select_default 515 518 +3 inet_sk_rebuild_header 836 838 +2 fib_trie_seq_show 764 766 +2 __devinet_sysctl_register 276 278 +2 fn_trie_lookup 1124 1123 -1 ip_fib_check_default 133 131 -2 devinet_conf_sysctl 223 221 -2 snmp_fold_field 126 123 -3 fn_trie_insert 2091 2086 -5 inet_create 876 870 -6 fib4_rules_init 197 191 -6 fib_sync_down 452 444 -8 inet_gso_send_check 334 325 -9 fib_create_info 3003 2991 -12 fib_nl_delrule 568 553 -15 fib_nl_newrule 883 852 -31 Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-29[FIB]: Add netns to fib_rules_ops.Denis V. Lunev1-0/+1
The backward link from FIB rules operations to the network namespace will allow to simplify the API a bit. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-29[NETNS]: Pass fib_rules_ops into default_pref method.Denis V. Lunev1-1/+1
fib_rules_ops contains operations and the list of configured rules. ops will become per/namespace soon, so we need them to be known in the default_pref callback. Acked-by: Benjamin Thery <benjamin.thery@bull.net> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-29[NETNS]: Add netns parameter to fib_rules_(un)register.Denis V. Lunev1-2/+2
The patch extends the different fib rules API in order to pass the network namespace pointer. That will allow to access the different tables from a namespace relative object. As usual, the pointer to the init_net variable is passed as parameter so we don't break the network. Acked-by: Benjamin Thery <benjamin.thery@bull.net> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-29[IPV6]: Make fib6_rules_init to return an error code.Daniel Lezcano1-3/+16
When the fib_rules initialization finished, no return code is provided so there is no way to know, for the caller, if the initialization has been successful or has failed. This patch fix that. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-11[INET]: Small possible memory leak in FIB rulesDenis V. Lunev1-22/+15
This patch fixes a small memory leak. Default fib rules can be deleted by the user if the rule does not carry FIB_RULE_PERMANENT flag, f.e. by ip rule flush Such a rule will not be freed as the ref-counter has 2 on start and becomes clearly unreachable after removal. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11[IPV4/IPV6/DECNET]: Small cleanup for fib rules.Denis V. Lunev1-5/+3
This patch slightly cleanups FIB rules framework. rules_list as a pointer on struct fib_rules_ops is useless. It is always assigned with a static per/subsystem list in IPv4, IPv6 and DecNet. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-06-08[NETLINK]: Mark netlink policies constPatrick McHardy1-1/+1
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPV6] FIB6RULE: Find source address during looking up route.YOSHIFUJI Hideaki1-3/+31
When looking up route for destination with rules with source address restrictions, we may need to find a source address for the traffic if not given. Based on patch from Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[NET] rules: Unified rules dumpingThomas Graf1-7/+0
Implements a unified, protocol independant rules dumping function which is capable of both, dumping a specific protocol family or all of them. This speeds up dumping as less lookups are required. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-26[IPv6]: Use rtnl registration interfaceThomas Graf1-1/+3
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-26[NET]: Fix fib_rules compatibility breakageThomas Graf1-9/+5
Based upon a patch from Patrick McHardy. The fib_rules netlink attribute policy introduced in 2.6.19 broke userspace compatibilty. When specifying a rule with "from all" or "to all", iproute adds a zero byte long netlink attribute, but the policy requires all addresses to have a size equal to sizeof(struct in_addr)/sizeof(struct in6_addr), resulting in a validation error. Check attribute length of FRA_SRC/FRA_DST in the generic framework by letting the family specific rules implementation provide the length of an address. Report an error if address length is non zero but no address attribute is provided. Fix actual bug by checking address length for non-zero instead of relying on availability of attribute. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-03[IPv6] rules: Remove bogus tos validation checkThomas Graf1-2/+1
Noticed by Al Viro: (frh->tos & ~IPV6_FLOWINFO_MASK)) where IPV6_FLOWINFO_MASK is htonl(0xfffffff) and frh->tos is u8, which makes no sense here... Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-03[NETLINK]: Do precise netlink message allocations where possibleThomas Graf1-0/+7
Account for the netlink message header size directly in nlmsg_new() instead of relying on the caller calculate it correctly. Replaces error handling of message construction functions when constructing notifications with bug traps since a failure implies a bug in calculating the size of the skb. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-03[IPV6] ROUTE: Use &rt->u.dst instead of cast.YOSHIFUJI Hideaki1-1/+1
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-12-03[NET] rules: Share common attribute validation policyThomas Graf1-5/+1
Move the attribute policy for the non-specific attributes into net/fib_rules.h and include it in the respective protocols. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-03[NET] rules: Protocol independant mark selectorThomas Graf1-32/+0
Move mark selector currently implemented per protocol into the protocol independant part. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-03[NET]: Rethink mark field in struct flowiThomas Graf1-11/+1
Now that all protocols have been made aware of the mark field it can be moved out of the union thus simplyfing its usage. The config options in the IPv4/IPv6/DECnet subsystems to enable respectively disable mark based routing only obfuscate the code with ifdefs, the cost for the additional comparison in the flow key is insignificant, and most distributions have all these options enabled by default anyway. Therefore it makes sense to remove the config options and enable mark based routing by default. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-16[IPv6] rules: Use RT6_LOOKUP_F_HAS_SADDR and fix source based selectorsThomas Graf1-4/+7
Fixes rt6_lookup() to provide the source address in the flow and sets RT6_LOOKUP_F_HAS_SADDR whenever it is present in the flow. Avoids unnecessary prefix comparisons by checking for a prefix length first. Fixes the rule logic to not match packets if a source selector has been specified but no source address is available. Thanks to Kim Nordlund <kim.nordlund@nokia.com> for working on this patch with me. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-10-04Remove all inclusions of <linux/config.h>Dave Jones1-1/+0
kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <davej@redhat.com>
2006-09-23[NETLINK]: Make use of NLA_STRING/NLA_NUL_STRING attribute validationThomas Graf1-3/+3
Converts existing NLA_STRING attributes to use the new validation features, saving a couple of temporary buffers. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6]: Fix routing by fwmarkPatrick McHardy1-2/+2
Fix mark comparison, also dump the mask to userspace when the mask is zero, but the mark is not (in which case the mark is dumped, so the mask is needed to make sense of it). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6] ROUTE: Add support for fwmask in routing rules.YOSHIFUJI Hideaki1-2/+22
Add support for fwmark masks. A mask of 0xFFFFFFFF is used when a mark value != 0 is sent without a mask. Based on patch for net/ipv4/fib_rules.c by Patrick McHardy <kaber@trash.net>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6] ROUTE: Fix size of fib6_rule_policy.YOSHIFUJI Hideaki1-1/+1
It should not be RTA_MAX+1 but FRA_MAX+1. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6] ROUTE: Fix FWMARK support.YOSHIFUJI Hideaki1-1/+2
- Add missing nla_policy entry. - type of fwmark is u32, not u8. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6] ROUTE: Routing by FWMARK.YOSHIFUJI Hideaki1-0/+23
Based on patch by Jean Lorchat <lorchat@sfc.wide.ad.jp>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-09-23[IPV6] ROUTE: Routing by Traffic Class.YOSHIFUJI Hideaki1-0/+3
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2006-09-23[IPV6] ROUTE: Unify RT6_F_xxx and RT6_SELECT_F_xxx flagsYOSHIFUJI Hideaki1-1/+1
Unify RT6_F_xxx and RT6_SELECT_F_xxx flags into RT6_LOOKUP_F_xxx flags, and put them into ip6_route.h Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Ville Nuorvala <vnuorval@tcs.hut.fi Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[NET]: Introduce RTA_TABLE/FRA_TABLE attributesPatrick McHardy1-0/+1
Introduce RTA_TABLE route attribute and FRA_TABLE routing rule attribute to hold 32 bit routing table IDs. Usespace compatibility is provided by continuing to accept and send the rtm_table field, but because of its limited size it can only carry the low 8 bits of the table ID. This implies that if larger IDs are used, _all_ userspace programs using them need to use RTA_TABLE. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6]: Make sure fib6_rule_lookup doesn't return NULLVille Nuorvala1-1/+5
The callers of fib6_rule_lookup don't expect it to return NULL, therefore it must return ip6_null_entry whenever fib_rule_lookup fails. Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[NET]: Make code static.Adrian Bunk1-2/+2
This patch makes needlessly global code static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6]: Fix policy routing lookupPatrick McHardy1-1/+3
When the lookup in a table returns ip6_null_entry the policy routing lookup returns it instead of continuing in the next table, which effectively means it only searches the local table. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-23[IPV6]: Policy Routing RulesThomas Graf1-0/+251
Adds support for policy routing rules including a new local table for routes with a local destination. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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