[PATCH] [IPv6] Do not update all temporary address, only the one with the same prefix
From: Benoit Boissinot <hidden>
Date: 2008-03-18 12:47:41
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
Only the temporary address with the same prefix should be updated Signed-off-by: Benoit Boissinot <redacted> --- I was wondering why my temporary address would always become deprecated, the reason was that my ISP is advertizing two prefixes, one is with preferred lifetime = 0, the other isn't. As soon as an RA came, it updated the lifetime of both adresses to 0. The check for the prefix_len isn't necessary since it should always be 64, maybe it could be removed, I don't know
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 101e0e7..5d0e404 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c@@ -1831,6 +1848,10 @@ ok: * lifetimes of an existing temporary address * when processing a Prefix Information Option. */ + if (ift->prefix_len != ifp->prefix_len || + !ipv6_prefix_equal(&ift->addr, &ifp->addr, ifp->prefix_len)) + continue; + spin_lock(&ift->lock); flags = ift->flags; if (ift->valid_lft > valid_lft &&
--
:wq