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authorJiri Bohac <jbohac@suse.cz>2013-08-30 11:18:45 +0200
committerDavid S. Miller <davem@davemloft.net>2013-09-03 22:11:44 -0400
commit61e76b178dbe7145e8d6afa84bb4ccea71918994 (patch)
tree740f1bb0f3e21de818d4de59b6ed8cfa3e5f7bfb /net/ipv6
parenta8787645e14ce7bbc3db9788526ed0be968c0df2 (diff)
downloadblackbird-op-linux-61e76b178dbe7145e8d6afa84bb4ccea71918994.tar.gz
blackbird-op-linux-61e76b178dbe7145e8d6afa84bb4ccea71918994.zip
ICMPv6: treat dest unreachable codes 5 and 6 as EACCES, not EPROTO
RFC 4443 has defined two additional codes for ICMPv6 type 1 (destination unreachable) messages: 5 - Source address failed ingress/egress policy 6 - Reject route to destination Now they are treated as protocol error and icmpv6_err_convert() converts them to EPROTO. RFC 4443 says: "Codes 5 and 6 are more informative subsets of code 1." Treat codes 5 and 6 as code 1 (EACCES) Btw, connect() returning -EPROTO confuses firefox, so that fallback to other/IPv4 addresses does not work: https://bugzilla.mozilla.org/show_bug.cgi?id=910773 Signed-off-by: Jiri Bohac <jbohac@suse.cz> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/icmp.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 7cfc8d284870..67ae4e0d40bf 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -940,6 +940,14 @@ static const struct icmp6_err {
.err = ECONNREFUSED,
.fatal = 1,
},
+ { /* POLICY_FAIL */
+ .err = EACCES,
+ .fatal = 1,
+ },
+ { /* REJECT_ROUTE */
+ .err = EACCES,
+ .fatal = 1,
+ },
};
int icmpv6_err_convert(u8 type, u8 code, int *err)
@@ -951,7 +959,7 @@ int icmpv6_err_convert(u8 type, u8 code, int *err)
switch (type) {
case ICMPV6_DEST_UNREACH:
fatal = 1;
- if (code <= ICMPV6_PORT_UNREACH) {
+ if (code < ARRAY_SIZE(tab_unreach)) {
*err = tab_unreach[code].err;
fatal = tab_unreach[code].fatal;
}
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