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authorVlad Yasevich <vladislav.yasevich@hp.com>2007-10-24 17:24:26 -0400
committerVlad Yasevich <vladislav.yasevich@hp.com>2007-11-07 11:39:27 -0500
commit73d9c4fd1a6ec4950b2eac8135d35506bf400d6c (patch)
treeb2d6fe707cdc790c9b42a2487d2892e97c6561ba /net/sctp/associola.c
parentSCTP: Correctly disable ADD-IP when AUTH is not supported. (diff)
downloadlinux-dev-73d9c4fd1a6ec4950b2eac8135d35506bf400d6c.tar.xz
linux-dev-73d9c4fd1a6ec4950b2eac8135d35506bf400d6c.zip
SCTP: Allow ADD_IP to work with AUTH for backward compatibility.
This patch adds a tunable that will allow ADD_IP to work without AUTH for backward compatibility. The default value is off since the default value for ADD_IP is off as well. People who need to use ADD-IP with older implementations take risks of connection hijacking and should consider upgrading or turning this tunable on. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Diffstat (limited to 'net/sctp/associola.c')
-rw-r--r--net/sctp/associola.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index eaad5c5535a8..013e3d3ab0f1 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -262,10 +262,14 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
*/
asoc->peer.sack_needed = 1;
- /* Assume that the peer recongizes ASCONF until reported otherwise
- * via an ERROR chunk.
+ /* Assume that the peer will tell us if he recognizes ASCONF
+ * as part of INIT exchange.
+ * The sctp_addip_noauth option is there for backward compatibilty
+ * and will revert old behavior.
*/
asoc->peer.asconf_capable = 0;
+ if (sctp_addip_noauth)
+ asoc->peer.asconf_capable = 1;
/* Create an input queue. */
sctp_inq_init(&asoc->base.inqueue);