dccp: ips_ipcl_dccp_fanout

*** 114,123 ****
--- 114,124 ----
  #include <sys/pattr.h>
  #include <inet/ipclassifier.h>
  #include <inet/sctp_ip.h>
  #include <inet/sctp/sctp_impl.h>
  #include <inet/udp_impl.h>
+ #include <inet/dccp_impl.h>
  #include <sys/sunddi.h>
  
  #include <sys/tsol/label.h>
  #include <sys/tsol/tnet.h>
  
*** 2387,2396 ****
--- 2388,2400 ----
                  min_ulp_header_length = UDPH_SIZE;
                  break;
          case IPPROTO_ICMP:
                  min_ulp_header_length = ICMPH_SIZE;
                  break;
+         case IPPROTO_DCCP:
+                 min_ulp_header_length = DCCP_MIN_HEADER_LENGTH;
+                 break;
          default:
                  min_ulp_header_length = 0;
                  break;
          }
          /* Make sure we have the min ULP header length */
*** 2712,2721 ****
--- 2716,2788 ----
                  (connp->conn_recv)(connp, mp, NULL, ira);
                  CONN_DEC_REF(connp);
                  ira->ira_ill = ill;
                  ira->ira_rill = rill;
                  return;
+         case IPPROTO_DCCP:
+                 /* For DCCP, discard broadcast and multicast packets */
+                 if (iraflags & IRAF_MULTIBROADCAST) {
+                         goto discard;
+                 }
+ 
+                 /* First mblk contains IP+DCCP headers per above check */
+                 ASSERT(len >= ip_hdr_length + DCCP_MIN_HEADER_LENGTH);
+ 
+                 /* Squeue hint */
+                 if (ira->ira_sqp == NULL) {
+                         ira->ira_sqp = ip_squeue_get(ira->ira_ring);
+                 }
+ 
+                 connp = ipcl_classify_v4(mp, IPPROTO_DCCP, ip_hdr_length,
+                     ira, ipst);
+                 if (connp == NULL) {
+                         cmn_err(CE_NOTE, "ip_input.c: ip_fanout_v4 connp not found");
+                         /* Send the reset packet */
+                         BUMP_MIB(ill->ill_ip_mib, ipIfStatsHCInDelivers);
+                         dccp_xmit_listeners_reset(mp, ira, ipst, NULL);
+                         return;
+                 }
+ 
+                 if (connp->conn_incoming_ifindex != 0 &&
+                     connp->conn_incoming_ifindex != ira->ira_ruifindex) {
+                         cmn_err(CE_NOTE, "ip_input.c: ip_fanout_v4 ifindex problem");
+                         /* Send the reset packet */
+                         BUMP_MIB(ill->ill_ip_mib, ipIfStatsHCInDelivers);
+                         dccp_xmit_listeners_reset(mp, ira, ipst, NULL);
+                         return;
+                 }
+ 
+                 if (CONN_INBOUND_POLICY_PRESENT(connp, ipss) ||
+                     (iraflags & IRAF_IPSEC_SECURE)) {
+                         mp = ipsec_check_inbound_policy(mp, connp,
+                             ipha, NULL, ira);
+                         if (mp == NULL) {
+                                 BUMP_MIB(ill->ill_ip_mib, ipIfStatsInDiscards);
+                                 /* Note that mp is NULL */
+                                 ip_drop_input("ipIfStatsInDiscards", mp, ill);
+                                 CONN_DEC_REF(connp);
+                                 return;
+                         }
+                 }
+ 
+                 /* Found a client; up it goes */
+                 BUMP_MIB(ill->ill_ip_mib, ipIfStatsHCInDelivers);
+                 ira->ira_ill = ira->ira_rill = NULL;
+ 
+                 /* XXX SOCK_RAW for DCCP? */
+ 
+                 if (iraflags & IRAF_TARGET_SQP) {
+                         cmn_err(CE_NOTE, "IRAF_TARGET_SQP");
+                 } else {
+                         SQUEUE_ENTER_ONE(connp->conn_sqp, mp, connp->conn_recv,
+                             connp, ira, ip_squeue_flag, SQTAG_IP_DCCP_INPUT);
+                 }
+ 
+                 ira->ira_ill = ill;
+                 ira->ira_rill = rill;
+                 return;
+ 
          default:
                  break;
          }
  
          /*