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| author | Sabrina Dubroca <sd@queasysnail.net> | 2017-04-25 16:56:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-25 20:59:24 +0300 |
| commit | ec9c4215fef37da6668c4105f5ad3891aaa6527a (patch) | |
| tree | d04bf4b4f4a7242797cce58619723eeacfac2a66 /net/ipv6 | |
| parent | c8fcd133eabcbbf51a6ecfd12a975cace8877d5a (diff) | |
| download | linux-ec9c4215fef37da6668c4105f5ad3891aaa6527a.tar.xz | |
ipv6: fix source routing
Commit a149e7c7ce81 ("ipv6: sr: add support for SRH injection through
setsockopt") introduced handling of IPV6_SRCRT_TYPE_4, but at the same
time restricted it to only IPV6_SRCRT_TYPE_0 and
IPV6_SRCRT_TYPE_4. Previously, ipv6_push_exthdr() and fl6_update_dst()
would also handle other values (ie STRICT and TYPE_2).
Restore previous source routing behavior, by handling IPV6_SRCRT_STRICT
and IPV6_SRCRT_TYPE_2 the same way as IPV6_SRCRT_TYPE_0 in
ipv6_push_exthdr() and fl6_update_dst().
Fixes: a149e7c7ce81 ("ipv6: sr: add support for SRH injection through setsockopt")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-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/exthdrs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 25192a3b0cd7..d32e2110aff2 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -909,6 +909,8 @@ static void ipv6_push_rthdr(struct sk_buff *skb, u8 *proto, { switch (opt->type) { case IPV6_SRCRT_TYPE_0: + case IPV6_SRCRT_STRICT: + case IPV6_SRCRT_TYPE_2: ipv6_push_rthdr0(skb, proto, opt, addr_p, saddr); break; case IPV6_SRCRT_TYPE_4: @@ -1163,6 +1165,8 @@ struct in6_addr *fl6_update_dst(struct flowi6 *fl6, switch (opt->srcrt->type) { case IPV6_SRCRT_TYPE_0: + case IPV6_SRCRT_STRICT: + case IPV6_SRCRT_TYPE_2: fl6->daddr = *((struct rt0_hdr *)opt->srcrt)->addr; break; case IPV6_SRCRT_TYPE_4: |