kernel.git/net/ipv6/ip6_fib.c, branch linux-2.6.32.y

ipv6: don't stop backtracking in fib6_lookup_1 if subtree does not match

2014-05-19T05:53:53Z

[ Upstream commit 3e3be275851bc6fc90bfdcd732cd95563acd982b ] In case a subtree did not match we currently stop backtracking and return NULL (root table from fib_lookup). This could yield in invalid routing table lookups when using subtrees. Instead continue to backtrack until a valid subtree or node is found and return this match. Also remove unneeded NULL check. Reported-by: Teco Boot Cc: YOSHIFUJI Hideaki Cc: David Lamparter Cc: Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller Signed-off-by: Willy Tarreau

xfrm: select sane defaults for xfrm[4|6] gc_thresh

2009-07-31T01:52:15Z

Choose saner defaults for xfrm[4|6] gc_thresh values on init Currently, the xfrm[4|6] code has hard-coded initial gc_thresh values (set to 1024). Given that the ipv4 and ipv6 routing caches are sized dynamically at boot time, the static selections can be non-sensical. This patch dynamically selects an appropriate gc threshold based on the corresponding main routing table size, using the assumption that we should in the worst case be able to handle as many connections as the routing table can. For ipv4, the maximum route cache size is 16 * the number of hash buckets in the route cache. Given that xfrm4 starts garbage collection at the gc_thresh and prevents new allocations at 2 * gc_thresh, we set gc_thresh to half the maximum route cache size. For ipv6, its a bit trickier. there is no maximum route cache size, but the ipv6 dst_ops gc_thresh is statically set to 1024. It seems sane to select a simmilar gc_thresh for the xfrm6 code that is half the number of hash buckets in the v6 route cache times 16 (like the v4 code does). Signed-off-by: Neil Horman Signed-off-by: David S. Miller

ipv6: Fix fib6_dump_table walker leak

2009-01-14T06:17:51Z

When a fib6 table dump is prematurely ended, we won't unlink its walker from the list. This causes all sorts of grief for other users of the list later. Reported-by: Chris Caputo Signed-off-by: Herbert Xu Signed-off-by: David S. Miller

netns: Add network namespace argument to rt6_fill_node() and ipv6_dev_get_saddr()

2008-08-14T22:33:21Z

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 Signed-off-by: David S. Miller

net: convert BUG_TRAP to generic WARN_ON

2008-07-26T04:43:18Z

Removes legacy reinvent-the-wheel type thing. The generic machinery integrates much better to automated debugging aids such as kerneloops.org (and others), and is unambiguous due to better naming. Non-intuively BUG_TRAP() is actually equal to WARN_ON() rather than BUG_ON() though some might actually be promoted to BUG_ON() but I left that to future. I could make at least one BUILD_BUG_ON conversion. Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller

ipv6: icmp6_dst_gc return change

2008-07-22T21:35:50Z

Change icmp6_dst_gc to return the one value the caller cares about rather than using call by reference. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

ipv6: use kcalloc

2008-07-22T21:35:07Z

Th fib_table_hash is an array, so use kcalloc. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

ipv6: use spin_trylock_bh

2008-07-22T21:34:35Z

Now there is spin_trylock_bh, use it rather than open coding. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

ipv6: use round_jiffies

2008-07-22T21:34:09Z

This timer normally happens once a minute, there is no need to cause an early wakeup for it, so align it to next second boundary to safe power. It can't be deferred because then it could take too long on cleanup or DoS. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller

netns: dont alloc ipv6 fib timer list

2008-07-22T21:33:45Z

FIB timer list is a trivial size structure, avoid indirection and just put it in existing ns. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller