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@@ -221,10 +221,11 @@
  *              IPCL_TCPCONN    indicates a TCP connection
  *              IPCL_SCTPCONN   indicates a SCTP connection
  *              IPCL_UDPCONN    indicates a UDP conn_t.
  *              IPCL_RAWIPCONN  indicates a RAWIP/ICMP conn_t.
  *              IPCL_RTSCONN    indicates a RTS conn_t.
+ *              IPCL_DCCPCONN   indicates a DCCP conn_t.
  *              IPCL_IPCCONN    indicates all other connections.
  *
  * void ipcl_conn_destroy(connp)
  *
  *      Destroys the connection state, removes it from the global

@@ -255,10 +256,11 @@
 #include <inet/ip_ire.h>
 #include <inet/ip6.h>
 #include <inet/ip_ndp.h>
 #include <inet/ip_impl.h>
 #include <inet/udp_impl.h>
+#include <inet/dccp/dccp_impl.h>
 #include <inet/sctp_ip.h>
 #include <inet/sctp/sctp_impl.h>
 #include <inet/rawip_impl.h>
 #include <inet/rts_impl.h>
 #include <inet/iptun/iptun_impl.h>

@@ -278,12 +280,13 @@
 /* New value. Zero means choose automatically.  Setable in /etc/system */
 uint_t ipcl_conn_hash_size = 0;
 uint_t ipcl_conn_hash_memfactor = 8192;
 uint_t ipcl_conn_hash_maxsize = 82500;
 
-/* bind/udp fanout table size */
+/* bind/dccp/udp fanout table size */
 uint_t ipcl_bind_fanout_size = 512;
+uint_t ipcl_dccp_fanout_size = 512;
 uint_t ipcl_udp_fanout_size = 16384;
 
 /* Raw socket fanout size.  Must be a power of 2. */
 uint_t ipcl_raw_fanout_size = 256;
 

@@ -317,10 +320,11 @@
 struct kmem_cache  *ip_conn_cache;
 extern struct kmem_cache  *sctp_conn_cache;
 struct kmem_cache  *udp_conn_cache;
 struct kmem_cache  *rawip_conn_cache;
 struct kmem_cache  *rts_conn_cache;
+struct kmem_cache  *dccp_conn_cache;
 
 extern void     tcp_timermp_free(tcp_t *);
 extern mblk_t   *tcp_timermp_alloc(int);
 
 static int      ip_conn_constructor(void *, void *, int);

@@ -336,10 +340,13 @@
 static void     rawip_conn_destructor(void *, void *);
 
 static int      rts_conn_constructor(void *, void *, int);
 static void     rts_conn_destructor(void *, void *);
 
+static int      dccp_conn_constructor(void *, void *, int);
+static void     dccp_conn_destructor(void *, void *);
+
 /*
  * Global (for all stack instances) init routine
  */
 void
 ipcl_g_init(void)

@@ -366,10 +373,16 @@
 
         rts_conn_cache = kmem_cache_create("rts_conn_cache",
             sizeof (itc_t) + sizeof (rts_t), CACHE_ALIGN_SIZE,
             rts_conn_constructor, rts_conn_destructor,
             NULL, NULL, NULL, 0);
+
+        /* XXX:DCCP reclaim */
+        dccp_conn_cache = kmem_cache_create("dccp_conn_cache",
+            sizeof (itc_t) + sizeof (dccp_t), CACHE_ALIGN_SIZE,
+            dccp_conn_constructor, dccp_conn_destructor,
+            NULL, NULL, NULL, 0);
 }
 
 /*
  * ipclassifier intialization routine, sets up hash tables.
  */

@@ -408,10 +421,11 @@
                 ipst->ips_ipcl_conn_fanout_size = sizes[16];
         }
 
         /* Take values from /etc/system */
         ipst->ips_ipcl_bind_fanout_size = ipcl_bind_fanout_size;
+        ipst->ips_ipcl_dccp_fanout_size = ipcl_dccp_fanout_size;
         ipst->ips_ipcl_udp_fanout_size = ipcl_udp_fanout_size;
         ipst->ips_ipcl_raw_fanout_size = ipcl_raw_fanout_size;
         ipst->ips_ipcl_iptun_fanout_size = ipcl_iptun_fanout_size;
 
         ASSERT(ipst->ips_ipcl_conn_fanout == NULL);

@@ -475,20 +489,28 @@
             sizeof (connf_t) * CONN_G_HASH_SIZE, KM_SLEEP);
         for (i = 0; i < CONN_G_HASH_SIZE; i++) {
                 mutex_init(&ipst->ips_ipcl_globalhash_fanout[i].connf_lock,
                     NULL, MUTEX_DEFAULT, NULL);
         }
+
+        ipst->ips_ipcl_dccp_fanout = kmem_zalloc(
+            ipst->ips_ipcl_dccp_fanout_size * sizeof (connf_t), KM_SLEEP);
+        for (i = 0; i < ipst->ips_ipcl_dccp_fanout_size; i++) {
+                mutex_init(&ipst->ips_ipcl_dccp_fanout[i].connf_lock, NULL,
+                    MUTEX_DEFAULT, NULL);
+        }
 }
 
 void
 ipcl_g_destroy(void)
 {
         kmem_cache_destroy(ip_conn_cache);
         kmem_cache_destroy(tcp_conn_cache);
         kmem_cache_destroy(udp_conn_cache);
         kmem_cache_destroy(rawip_conn_cache);
         kmem_cache_destroy(rts_conn_cache);
+        kmem_cache_destroy(dccp_conn_cache);
 }
 
 /*
  * All user-level and kernel use of the stack must be gone
  * by now.

@@ -560,10 +582,18 @@
         }
         kmem_free(ipst->ips_ipcl_globalhash_fanout,
             sizeof (connf_t) * CONN_G_HASH_SIZE);
         ipst->ips_ipcl_globalhash_fanout = NULL;
 
+        for (i = 0; i < ipst->ips_ipcl_dccp_fanout_size; i++) {
+                ASSERT(ipst->ips_ipcl_dccp_fanout[i].connf_head == NULL);
+                mutex_destroy(&ipst->ips_ipcl_dccp_fanout[i].connf_lock);
+        }
+        kmem_free(ipst->ips_ipcl_dccp_fanout, ipst->ips_ipcl_dccp_fanout_size *
+            sizeof (connf_t));
+        ipst->ips_ipcl_dccp_fanout = NULL;
+
         ASSERT(ipst->ips_rts_clients->connf_head == NULL);
         mutex_destroy(&ipst->ips_rts_clients->connf_lock);
         kmem_free(ipst->ips_rts_clients, sizeof (connf_t));
         ipst->ips_rts_clients = NULL;
 }

@@ -608,10 +638,14 @@
 
         case IPCL_IPCCONN:
                 conn_cache = ip_conn_cache;
                 break;
 
+        case IPCL_DCCPCONN:
+                conn_cache = dccp_conn_cache;
+                break;
+
         default:
                 connp = NULL;
                 ASSERT(0);
         }
 

@@ -718,10 +752,27 @@
                 ASSERT(ns != NULL);
                 sctp_free(connp);
                 return;
         }
 
+        if (connp->conn_flags & IPCL_DCCPCONN) {
+                dccp_t  *dccp = connp->conn_dccp;
+
+                cmn_err(CE_NOTE, "ipclassifier: conn_flags DCCP cache_free");
+
+                /* XXX:DCCP */
+                /* Crash bug here: udp_conn_cache and dccp_conn_cache */
+/*
+                ipcl_conn_cleanup(connp);
+                connp->conn_flags = IPCL_DCCPCONN;
+                bzero(dccp, sizeof (dccp_t));
+                dccp->dccp_connp = connp;
+                kmem_cache_free(dccp_conn_cache, connp);
+                return;
+*/
+        }
+
         ipcl_conn_cleanup(connp);
         if (ns != NULL) {
                 connp->conn_netstack = NULL;
                 connp->conn_ixa->ixa_ipst = NULL;
                 netstack_rele(ns);

@@ -1234,12 +1285,26 @@
                 break;
 
         case IPPROTO_SCTP:
                 ret = ipcl_sctp_hash_insert(connp, lport);
                 break;
+
+        case IPPROTO_DCCP:
+                cmn_err(CE_NOTE, "ipcl_bind_insert_v4");
+                ASSERT(connp->conn_zoneid != ALL_ZONES);
+                connfp = &ipst->ips_ipcl_dccp_fanout[
+                    IPCL_DCCP_HASH(lport, ipst)];
+                if (connp->conn_laddr_v4 != INADDR_ANY) {
+                        IPCL_HASH_INSERT_BOUND(connfp, connp);
+                } else {
+                        IPCL_HASH_INSERT_WILDCARD(connfp, connp);
+                }
+                /* XXX:DCCP */
+                break;
         }
 
+
         return (ret);
 }
 
 int
 ipcl_bind_insert_v6(conn_t *connp)

@@ -1307,10 +1372,14 @@
                 break;
 
         case IPPROTO_SCTP:
                 ret = ipcl_sctp_hash_insert(connp, lport);
                 break;
+
+        case IPPROTO_DCCP:
+                /* XXX:DCCP */
+                break;
         }
 
         return (ret);
 }
 

@@ -1391,10 +1460,22 @@
                  */
                 IPCL_HASH_REMOVE(connp);
                 ret = ipcl_sctp_hash_insert(connp, lport);
                 break;
 
+        case IPPROTO_DCCP:
+                cmn_err(CE_NOTE, "insert v4");
+
+                connfp = &ipst->ips_ipcl_conn_fanout[
+                    IPCL_CONN_HASH(connp->conn_faddr_v4,
+                    connp->conn_ports, ipst)];
+                mutex_enter(&connfp->connf_lock);
+                IPCL_HASH_INSERT_CONNECTED_LOCKED(connfp, connp);
+                mutex_exit(&connfp->connf_lock);
+                /* XXX:DCCP */
+                break;
+
         default:
                 /*
                  * Check for conflicts among MAC exempt bindings.  For
                  * transports with port numbers, this is done by the upper
                  * level per-transport binding logic.  For all others, it's

@@ -1486,10 +1567,14 @@
         case IPPROTO_SCTP:
                 IPCL_HASH_REMOVE(connp);
                 ret = ipcl_sctp_hash_insert(connp, lport);
                 break;
 
+        case IPPROTO_DCCP:
+                /* XXX:DCCP */
+                break;
+
         default:
                 if (is_system_labeled() &&
                     check_exempt_conflict_v6(connp, ipst))
                         return (EADDRINUSE);
                 /* FALLTHROUGH */

@@ -1653,10 +1738,35 @@
                  */
                 mutex_exit(&connfp->connf_lock);
 
                 break;
 
+        case IPPROTO_DCCP:
+                fport = up[0];
+                lport = up[1];
+                connfp = &ipst->ips_ipcl_dccp_fanout[IPCL_DCCP_HASH(
+                    lport, ipst)];
+                mutex_enter(&connfp->connf_lock);
+                for (connp = connfp->connf_head; connp != NULL;
+                    connp = connp->conn_next) {
+                        cmn_err(CE_NOTE, "connfp found");
+                        /* XXX:DCCP */
+                        if (IPCL_UDP_MATCH(connp, lport, ipha->ipha_dst,
+                            fport, ipha->ipha_src)) {
+                                break;
+                        }
+                }
+
+                if (connp != NULL) {
+                        CONN_INC_REF(connp);
+                        mutex_exit(&connfp->connf_lock);
+                        return (connp);
+                }
+
+                mutex_exit(&connfp->connf_lock);
+                break;
+
         case IPPROTO_ENCAP:
         case IPPROTO_IPV6:
                 return (ipcl_iptun_classify_v4(&ipha->ipha_src,
                     &ipha->ipha_dst, ipst));
         }

@@ -2173,10 +2283,64 @@
                 ASSERT(connp->conn_ixa->ixa_nce == NULL);
                 ixa_refrele(connp->conn_ixa);
         }
 }
 
+/* ARGSUSED */
+static int
+dccp_conn_constructor(void *buf, void *cdrarg, int kmflags)
+{
+        itc_t   *itc = (itc_t *)buf;
+        conn_t  *connp = &itc->itc_conn;
+        dccp_t  *dccp = (dccp_t *)&itc[1];
+
+        bzero(connp, sizeof (conn_t));
+        bzero(dccp, sizeof (dccp_t));
+
+        mutex_init(&connp->conn_lock, NULL, MUTEX_DEFAULT, NULL);
+        cv_init(&connp->conn_cv, NULL, CV_DEFAULT, NULL);
+        rw_init(&connp->conn_ilg_lock, NULL, RW_DEFAULT, NULL);
+
+        connp->conn_dccp = dccp;
+        connp->conn_flags = IPCL_DCCPCONN;
+        connp->conn_proto = IPPROTO_DCCP;
+        dccp->dccp_connp = connp;
+        connp->conn_ixa = kmem_zalloc(sizeof (ip_xmit_attr_t), kmflags);
+        if (connp->conn_ixa == NULL)
+                return (NULL);
+        connp->conn_ixa->ixa_refcnt = 1;
+        connp->conn_ixa->ixa_protocol = connp->conn_proto;
+        connp->conn_ixa->ixa_xmit_hint = CONN_TO_XMIT_HINT(connp);
+
+        return (0);
+}
+
+/* ARGSUSED */
+static void
+dccp_conn_destructor(void *buf, void *cdrarg)
+{
+        itc_t   *itc = (itc_t *)buf;
+        conn_t  *connp = &itc->itc_conn;
+        dccp_t  *dccp = (dccp_t *)&itc[1];
+
+        ASSERT(connp->conn_flags & IPCL_DCCPCONN);
+        ASSERT(dccp->dccp_connp == connp);
+        ASSERT(connp->conn_dccp == dccp);
+
+        mutex_destroy(&connp->conn_lock);
+        cv_destroy(&connp->conn_cv);
+        rw_destroy(&connp->conn_ilg_lock);
+
+        if (connp->conn_ixa != NULL) {
+                ASSERT(connp->conn_ixa->ixa_refcnt == 1);
+                ASSERT(connp->conn_ixa->ixa_ire == NULL);
+                ASSERT(connp->conn_ixa->ixa_nce == NULL);
+
+                ixa_refrele(connp->conn_ixa);
+        }
+}
+
 /*
  * Called as part of ipcl_conn_destroy to assert and clear any pointers
  * in the conn_t.
  *
  * Below we list all the pointers in the conn_t as a documentation aid.