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-rw-r--r--net/sctp/sm_make_chunk.c26
1 files changed, 12 insertions, 14 deletions
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 01e97836ca6c..d244a23ab8d3 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2240,25 +2240,23 @@ int sctp_verify_init(struct net *net, const struct sctp_association *asoc,
struct sctp_chunk **errp)
{
union sctp_params param;
- int has_cookie = 0;
+ bool has_cookie = false;
int result;
- /* Verify stream values are non-zero. */
- if ((0 == peer_init->init_hdr.num_outbound_streams) ||
- (0 == peer_init->init_hdr.num_inbound_streams) ||
- (0 == peer_init->init_hdr.init_tag) ||
- (SCTP_DEFAULT_MINWINDOW > ntohl(peer_init->init_hdr.a_rwnd))) {
-
+ /* Check for missing mandatory parameters. Note: Initial TSN is
+ * also mandatory, but is not checked here since the valid range
+ * is 0..2**32-1. RFC4960, section 3.3.3.
+ */
+ if (peer_init->init_hdr.num_outbound_streams == 0 ||
+ peer_init->init_hdr.num_inbound_streams == 0 ||
+ peer_init->init_hdr.init_tag == 0 ||
+ ntohl(peer_init->init_hdr.a_rwnd) < SCTP_DEFAULT_MINWINDOW)
return sctp_process_inv_mandatory(asoc, chunk, errp);
- }
- /* Check for missing mandatory parameters. */
sctp_walk_params(param, peer_init, init_hdr.params) {
-
- if (SCTP_PARAM_STATE_COOKIE == param.p->type)
- has_cookie = 1;
-
- } /* for (loop through all parameters) */
+ if (param.p->type == SCTP_PARAM_STATE_COOKIE)
+ has_cookie = true;
+ }
/* There is a possibility that a parameter length was bad and
* in that case we would have stoped walking the parameters.