currently, we sctp_walk_params(), if we encounter the address parameter, we will
skip them, we do not care about how many addr params are there.
but the params of ASCONF chunk should consist of one *Address Parameter* and one
or more *ASCONF Parameters*.
so we will process multiple address parameters as unrecognized parameter and
send error cause to peer.
Signed-off-by: Xin Long <lucien....@gmail.com>
---
net/sctp/sm_make_chunk.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 06320c8..0ee5ca7 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3217,10 +3217,18 @@ struct sctp_chunk *sctp_process_asconf(struct
sctp_association *asoc,
/* Process the TLVs contained within the ASCONF chunk. */
sctp_walk_params(param, addip, addip_hdr.params) {
- /* Skip preceeding address parameters. */
+ /* Skip preceeding address parameters.
+ * process multi-addrparam as unrecognized parameters
+ */
if (param.p->type == SCTP_PARAM_IPV4_ADDRESS ||
- param.p->type == SCTP_PARAM_IPV6_ADDRESS)
+ param.p->type == SCTP_PARAM_IPV6_ADDRESS) {
+ if(param.addr != addr_param) {
+ all_param_pass = false;
+ sctp_add_asconf_response(asconf_ack, 0,
+ SCTP_ERROR_UNKNOWN_PARAM, param.v);
+ }
continue;
+ }
err_code = sctp_process_asconf_param(asoc, asconf,
param.addip);
--
2.1.0
--
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