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);
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