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  1. 03 8月, 2013 1 次提交
  3. 01 8月, 2013 2 次提交
    • H
      ipv6: fib6_rules should return exact return value · 46b3a421
      由 Hannes Frederic Sowa 提交于 
      With the addition of the suppress operation
(7764a45a ("fib_rules: add .suppress
operation") we rely on accurate error reporting of the fib_rules.actions.

fib6_rule_action always returned -EAGAIN in case we could not find a
matching route and 0 if a rule was matched. This also included a match
for blackhole or prohibited rule actions which could get suppressed by
the new logic.

So adapt fib6_rule_action to always return the correct error code as
its counterpart fib4_rule_action does. This also fixes a possiblity of
nullptr-deref where we don't find a table, thus rt == NULL. Because
the condition rt != ip6_null_entry still holdes it seems we could later
get a nullptr bug on dereference rt->dst.

v2:
a) Fixed a brain fart in the commit msg (the rule => a table, etc). No
   changes to the patch.

Cc: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      46b3a421
    • S
      fib_rules: add .suppress operation · 7764a45a
      由 Stefan Tomanek 提交于 
      This change adds a new operation to the fib_rules_ops struct; it allows the
suppression of routing decisions if certain criteria are not met by its
results.

The first implemented constraint is a minimum prefix length added to the
structures of routing rules. If a rule is added with a minimum prefix length
>0, only routes meeting this threshold will be considered. Any other (more
general) routing table entries will be ignored.

When configuring a system with multiple network uplinks and default routes, it
is often convinient to reference the main routing table multiple times - but
omitting the default route. Using this patch and a modified "ip" utility, this
can be achieved by using the following command sequence:

  $ ip route add table secuplink default via 10.42.23.1

  $ ip rule add pref 100            table main prefixlength 1
  $ ip rule add pref 150 fwmark 0xA table secuplink

With this setup, packets marked 0xA will be processed by the additional routing
table "secuplink", but only if no suitable route in the main routing table can
be found. By using a minimal prefixlength of 1, the default route (/0) of the
table "main" is hidden to packets processed by rule 100; packets traveling to
destinations with more specific routing entries are processed as usual.
Signed-off-by: NStefan Tomanek <stefan.tomanek@wertarbyte.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7764a45a
  5. 04 11月, 2012 1 次提交
  7. 06 10月, 2012 1 次提交
  9. 02 4月, 2012 2 次提交
  11. 23 11月, 2011 1 次提交
  13. 01 11月, 2011 1 次提交
  15. 13 3月, 2011 1 次提交
  17. 17 10月, 2010 1 次提交
  19. 11 6月, 2010 1 次提交
  21. 26 4月, 2010 2 次提交
    • P
      net: rtnetlink: decouple rtnetlink address families from real address families · 25239cee
      由 Patrick McHardy 提交于 
      Decouple rtnetlink address families from real address families in socket.h to
be able to add rtnetlink interfaces to code that is not a real address family
without increasing AF_MAX/NPROTO.

This will be used to add support for multicast route dumping from all tables
as the proc interface can't be extended to support anything but the main table
without breaking compatibility.

This partialy undoes the patch to introduce independant families for routing
rules and converts ipmr routing rules to a new rtnetlink family. Similar to
that patch, values up to 127 are reserved for real address families, values
above that may be used arbitrarily.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
      25239cee
    • P
      net: fib_rules: mark arguments to fib_rules_register const and __net_initdata · 3d0c9c4e
      由 Patrick McHardy 提交于 
      fib_rules_register() duplicates the template passed to it without modification,
mark the argument as const. Additionally the templates are only needed when
instantiating a new namespace, so mark them as __net_initdata, which means
they can be discarded when CONFIG_NET_NS=n.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
      3d0c9c4e
  23. 14 4月, 2010 2 次提交
  25. 08 3月, 2010 1 次提交
  27. 18 1月, 2010 1 次提交
  29. 04 12月, 2009 2 次提交
    • E
      net: Allow fib_rule_unregister to batch · e9c5158a
      由 Eric W. Biederman 提交于 
      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: NEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e9c5158a
    • P
      net 04/05: fib_rules: allow to delete local rule · 5adef180
      由 Patrick McHardy 提交于 
      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: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5adef180
  31. 21 5月, 2009 1 次提交
  33. 18 5月, 2009 1 次提交
  35. 15 8月, 2008 1 次提交
  37. 11 4月, 2008 1 次提交
  39. 26 3月, 2008 1 次提交
  41. 25 3月, 2008 1 次提交
  43. 05 3月, 2008 2 次提交
  45. 04 3月, 2008 4 次提交
  47. 29 1月, 2008 5 次提交
  49. 11 11月, 2007 1 次提交
  51. 11 10月, 2007 1 次提交
  53. 08 6月, 2007 1 次提交