diff options
| author | Daniel Borkmann <[email protected]> | 2013-09-16 12:36:02 +0200 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2013-09-16 21:40:15 -0400 |
| commit | 3f96a532113131d5a65ac9e00fc83cfa31b0295f (patch) | |
| tree | acf78191cb5bce2865b1055dcbf579e9468b6ac0 /lib/net_utils.c | |
| parent | d82a7f54b9daadca8e19dd3ce31e02bf2f7445c9 (diff) | |
net: sctp: rfc4443: do not report ICMP redirects to user space
Adapt the same behaviour for SCTP as present in TCP for ICMP redirect
messages. For IPv6, RFC4443, section 2.4. says:
...
(e) An ICMPv6 error message MUST NOT be originated as a result of
receiving the following:
...
(e.2) An ICMPv6 redirect message [IPv6-DISC].
...
Therefore, do not report an error to user space, just invoke dst's redirect
callback and leave, same for IPv4 as done in TCP as well. The implication
w/o having this patch could be that the reception of such packets would
generate a poll notification and in worst case it could even tear down the
whole connection. Therefore, stop updating sk_err on redirects.
Reported-by: Duan Jiong <[email protected]>
Reported-by: Hannes Frederic Sowa <[email protected]>
Suggested-by: Vlad Yasevich <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'lib/net_utils.c')
0 files changed, 0 insertions, 0 deletions