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authorVlad Yasevich <vladislav.yasevich@hp.com>2008-09-18 16:27:38 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-10-08 19:44:44 -0700
commitb18dfc326dd814b63abd0a484e3e300300065edc (patch)
treed4b23895310bf1c876c8be9cba8005a52766d5e5
parent8d9f9fdc074522b022abfa500a25a072d5e13113 (diff)
sctp: do not enable peer features if we can't do them.
[ Upstream commit 0ef46e285c062cbe35d60c0adbff96f530d31c86 ] Do not enable peer features like addip and auth, if they are administratively disabled localy. If the peer resports that he supports something that we don't, neither end can use it so enabling it is pointless. This solves a problem when talking to a peer that has auth and addip enabled while we do not. Found by Andrei Pelinescu-Onciul <andrei@iptel.org>. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--net/sctp/sm_make_chunk.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 36ebb392472e..46862775d415 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1886,11 +1886,13 @@ static void sctp_process_ext_param(struct sctp_association *asoc,
/* if the peer reports AUTH, assume that he
* supports AUTH.
*/
- asoc->peer.auth_capable = 1;
+ if (sctp_auth_enable)
+ asoc->peer.auth_capable = 1;
break;
case SCTP_CID_ASCONF:
case SCTP_CID_ASCONF_ACK:
- asoc->peer.asconf_capable = 1;
+ if (sctp_addip_enable)
+ asoc->peer.asconf_capable = 1;
break;
default:
break;
@@ -2454,6 +2456,9 @@ static int sctp_process_param(struct sctp_association *asoc,
break;
case SCTP_PARAM_SET_PRIMARY:
+ if (!sctp_addip_enable)
+ goto fall_through;
+
addr_param = param.v + sizeof(sctp_addip_param_t);
af = sctp_get_af_specific(param_type2af(param.p->type));