The ADD-IP "Set Primary IP Address" parameter is allowed in the
INIT/INIT-ACK exchange. Allow processing of this parameter during
the INIT/INIT-ACK.
Signed-off-by: Vlad Yasevich <[EMAIL PROTECTED]>
---
include/net/sctp/structs.h | 1 +
net/sctp/sm_make_chunk.c | 27 +++++++++++++++++++++++++++
2 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 55acadc..fb9b7e7 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -451,6 +451,7 @@ union sctp_params {
struct sctp_random_param *random;
struct sctp_chunks_param *chunks;
struct sctp_hmac_algo_param *hmac_algo;
+ struct sctp_addip_param *addip;
};
/* RFC 2960. Section 3.3.5 Heartbeat.
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 00598ee..62af33d 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1963,6 +1963,11 @@ static sctp_ierror_t sctp_verify_param(const struct
sctp_association *asoc,
case SCTP_PARAM_SUPPORTED_EXT:
break;
+ case SCTP_PARAM_SET_PRIMARY:
+ if (sctp_addip_enable)
+ break;
+ goto fallthrough;
+
case SCTP_PARAM_HOST_NAME_ADDRESS:
/* Tell the peer, we won't support this param. */
sctp_process_hn_param(asoc, param, chunk, err_chunk);
@@ -2280,6 +2285,8 @@ static int sctp_process_param(struct sctp_association
*asoc,
sctp_scope_t scope;
time_t stale;
struct sctp_af *af;
+ union sctp_addr_param *addr_param;
+ struct sctp_transport *t;
/* We maintain all INIT parameters in network byte order all the
* time. This allows us to not worry about whether the parameters
@@ -2370,6 +2377,26 @@ static int sctp_process_param(struct sctp_association
*asoc,
asoc->peer.adaptation_ind = param.aind->adaptation_ind;
break;
+ case SCTP_PARAM_SET_PRIMARY:
+ addr_param = param.v + sizeof(sctp_addip_param_t);
+
+ af = sctp_get_af_specific(param_type2af(param.p->type));
+ af->from_addr_param(&addr, addr_param,
+ htons(asoc->peer.port), 0);
+
+ /* if the address is invalid, we can't process it.
+ * XXX: see spec for what to do.
+ */
+ if (!af->addr_valid(&addr, NULL, NULL))
+ break;
+
+ t = sctp_assoc_lookup_paddr(asoc, &addr);
+ if (!t)
+ break;
+
+ sctp_assoc_set_primary(asoc, t);
+ break;
+
case SCTP_PARAM_SUPPORTED_EXT:
sctp_process_ext_param(asoc, param);
break;
--
1.5.3.5
--
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