svn commit: r293913 - head/sys/netinet

[Michael Tuexen]

Author: tuexen
Date: Thu Jan 14 11:25:28 2016
New Revision: 293913
URL: https://svnweb.freebsd.org/changeset/base/293913

Log:
  Fail the SCTP_GET_ASSOC_NUMBER and SCTP_GET_ASSOC_ID_LIST
  socket options for 1-to-1 style sockets as specified in RFC 6458.
  
  MFC after:	3 days

Modified:
  head/sys/netinet/sctp_usrreq.c

Modified: head/sys/netinet/sctp_usrreq.c
==============================================================================
--- head/sys/netinet/sctp_usrreq.c	Thu Jan 14 11:11:46 2016	(r293912)
+++ head/sys/netinet/sctp_usrreq.c	Thu Jan 14 11:25:28 2016	(r293913)
@@ -1883,8 +1883,15 @@ flags_out:
 			uint32_t *value, cnt;
 
 			SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
-			cnt = 0;
 			SCTP_INP_RLOCK(inp);
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+				/* Can't do this for a 1-1 socket */
+				error = EINVAL;
+				SCTP_INP_RUNLOCK(inp);
+				break;
+			}
+			cnt = 0;
 			LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 				cnt++;
 			}
@@ -1899,9 +1906,16 @@ flags_out:
 			unsigned int at, limit;
 
 			SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
+			SCTP_INP_RLOCK(inp);
+			if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
+			    (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
+				/* Can't do this for a 1-1 socket */
+				error = EINVAL;
+				SCTP_INP_RUNLOCK(inp);
+				break;
+			}
 			at = 0;
 			limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
-			SCTP_INP_RLOCK(inp);
 			LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
 				if (at < limit) {
 					ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);