]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blobdiff - net/tipc/socket.c
tipc: merge struct tipc_port into struct tipc_sock
[mirror_ubuntu-jammy-kernel.git] / net / tipc / socket.c
index 6a699671245ba092f7d48e12d190b7f4b809fc11..d416e83ce069adcbeb332850cfed68aca3fdba94 100644 (file)
 #define SS_LISTENING   -1      /* socket is listening */
 #define SS_READY       -2      /* socket is connectionless */
 
-#define CONN_TIMEOUT_DEFAULT   8000    /* default connect timeout = 8s */
+#define CONN_TIMEOUT_DEFAULT  8000     /* default connect timeout = 8s */
 #define CONN_PROBING_INTERVAL 3600000  /* [ms] => 1 h */
-#define TIPC_FWD_MSG           1
+#define TIPC_FWD_MSG         1
+#define TIPC_CONN_OK          0
+#define TIPC_CONN_PROBING     1
+
+/**
+ * struct tipc_sock - TIPC socket structure
+ * @sk: socket - interacts with 'port' and with user via the socket API
+ * @connected: non-zero if port is currently connected to a peer port
+ * @conn_type: TIPC type used when connection was established
+ * @conn_instance: TIPC instance used when connection was established
+ * @published: non-zero if port has one or more associated names
+ * @max_pkt: maximum packet size "hint" used when building messages sent by port
+ * @ref: unique reference to port in TIPC object registry
+ * @phdr: preformatted message header used when sending messages
+ * @port_list: adjacent ports in TIPC's global list of ports
+ * @publications: list of publications for port
+ * @pub_count: total # of publications port has made during its lifetime
+ * @probing_state:
+ * @probing_interval:
+ * @timer:
+ * @port: port - interacts with 'sk' and with the rest of the TIPC stack
+ * @peer_name: the peer of the connection, if any
+ * @conn_timeout: the time we can wait for an unresponded setup request
+ * @dupl_rcvcnt: number of bytes counted twice, in both backlog and rcv queue
+ * @link_cong: non-zero if owner must sleep because of link congestion
+ * @sent_unacked: # messages sent by socket, and not yet acked by peer
+ * @rcv_unacked: # messages read by user, but not yet acked back to peer
+ */
+struct tipc_sock {
+       struct sock sk;
+       int connected;
+       u32 conn_type;
+       u32 conn_instance;
+       int published;
+       u32 max_pkt;
+       u32 ref;
+       struct tipc_msg phdr;
+       struct list_head sock_list;
+       struct list_head publications;
+       u32 pub_count;
+       u32 probing_state;
+       u32 probing_interval;
+       struct timer_list timer;
+       uint conn_timeout;
+       atomic_t dupl_rcvcnt;
+       bool link_cong;
+       uint sent_unacked;
+       uint rcv_unacked;
+};
 
 static int tipc_backlog_rcv(struct sock *sk, struct sk_buff *skb);
 static void tipc_data_ready(struct sock *sk);
@@ -56,9 +104,9 @@ static int tipc_release(struct socket *sock);
 static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags);
 static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p);
 static void tipc_sk_timeout(unsigned long ref);
-static int tipc_sk_publish(struct tipc_port *port, uint scope,
+static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
                           struct tipc_name_seq const *seq);
-static int tipc_sk_withdraw(struct tipc_port *port, uint scope,
+static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
                            struct tipc_name_seq const *seq);
 static u32 tipc_sk_ref_acquire(struct tipc_sock *tsk);
 static void tipc_sk_ref_discard(u32 ref);
@@ -118,49 +166,59 @@ static struct proto tipc_proto_kern;
  *   - port reference
  */
 
-static u32 tsk_peer_node(struct tipc_port *p_ptr)
+static u32 tsk_peer_node(struct tipc_sock *tsk)
 {
-       return msg_destnode(&p_ptr->phdr);
+       return msg_destnode(&tsk->phdr);
 }
 
-static u32 tsk_peer_port(struct tipc_port *p_ptr)
+static u32 tsk_peer_port(struct tipc_sock *tsk)
 {
-       return msg_destport(&p_ptr->phdr);
+       return msg_destport(&tsk->phdr);
 }
 
-static  bool tsk_unreliable(struct tipc_port *port)
+static  bool tsk_unreliable(struct tipc_sock *tsk)
 {
-       return msg_src_droppable(&port->phdr) != 0;
+       return msg_src_droppable(&tsk->phdr) != 0;
 }
 
-static void tsk_set_unreliable(struct tipc_port *port, bool unreliable)
+static void tsk_set_unreliable(struct tipc_sock *tsk, bool unreliable)
 {
-       msg_set_src_droppable(&port->phdr, unreliable ? 1 : 0);
+       msg_set_src_droppable(&tsk->phdr, unreliable ? 1 : 0);
 }
 
-static bool tsk_unreturnable(struct tipc_port *port)
+static bool tsk_unreturnable(struct tipc_sock *tsk)
 {
-       return msg_dest_droppable(&port->phdr) != 0;
+       return msg_dest_droppable(&tsk->phdr) != 0;
 }
 
-static void tsk_set_unreturnable(struct tipc_port *port, bool unreturnable)
+static void tsk_set_unreturnable(struct tipc_sock *tsk, bool unreturnable)
 {
-       msg_set_dest_droppable(&port->phdr, unreturnable ? 1 : 0);
+       msg_set_dest_droppable(&tsk->phdr, unreturnable ? 1 : 0);
 }
 
-static int tsk_importance(struct tipc_port *port)
+static int tsk_importance(struct tipc_sock *tsk)
 {
-       return msg_importance(&port->phdr);
+       return msg_importance(&tsk->phdr);
 }
 
-static int tsk_set_importance(struct tipc_port *port, int imp)
+static int tsk_set_importance(struct tipc_sock *tsk, int imp)
 {
        if (imp > TIPC_CRITICAL_IMPORTANCE)
                return -EINVAL;
-       msg_set_importance(&port->phdr, (u32)imp);
+       msg_set_importance(&tsk->phdr, (u32)imp);
        return 0;
 }
 
+static struct tipc_sock *tipc_sk(const struct sock *sk)
+{
+       return container_of(sk, struct tipc_sock, sk);
+}
+
+static int tsk_conn_cong(struct tipc_sock *tsk)
+{
+       return tsk->sent_unacked >= TIPC_FLOWCTRL_WIN;
+}
+
 /**
  * tsk_advance_rx_queue - discard first buffer in socket receive queue
  *
@@ -194,18 +252,18 @@ static void tsk_rej_rx_queue(struct sock *sk)
  */
 static bool tsk_peer_msg(struct tipc_sock *tsk, struct tipc_msg *msg)
 {
-       u32 peer_port = tsk_peer_port(&tsk->port);
+       u32 peer_port = tsk_peer_port(tsk);
        u32 orig_node;
        u32 peer_node;
 
-       if (unlikely(!tsk->port.connected))
+       if (unlikely(!tsk->connected))
                return false;
 
        if (unlikely(msg_origport(msg) != peer_port))
                return false;
 
        orig_node = msg_orignode(msg);
-       peer_node = tsk_peer_node(&tsk->port);
+       peer_node = tsk_peer_node(tsk);
 
        if (likely(orig_node == peer_node))
                return true;
@@ -238,7 +296,6 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
        socket_state state;
        struct sock *sk;
        struct tipc_sock *tsk;
-       struct tipc_port *port;
        struct tipc_msg *msg;
        u32 ref;
 
@@ -274,17 +331,15 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
                return -ENOMEM;
 
        tsk = tipc_sk(sk);
-       port = &tsk->port;
        ref = tipc_sk_ref_acquire(tsk);
        if (!ref) {
                pr_warn("Socket create failed; reference table exhausted\n");
                return -ENOMEM;
        }
-       port->max_pkt = MAX_PKT_DEFAULT;
-       port->ref = ref;
-       INIT_LIST_HEAD(&port->publications);
-
-       msg = &port->phdr;
+       tsk->max_pkt = MAX_PKT_DEFAULT;
+       tsk->ref = ref;
+       INIT_LIST_HEAD(&tsk->publications);
+       msg = &tsk->phdr;
        tipc_msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG,
                      NAMED_H_SIZE, 0);
        msg_set_origport(msg, ref);
@@ -293,7 +348,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
        sock->ops = ops;
        sock->state = state;
        sock_init_data(sock, sk);
-       k_init_timer(&port->timer, (Handler)tipc_sk_timeout, ref);
+       k_init_timer(&tsk->timer, (Handler)tipc_sk_timeout, ref);
        sk->sk_backlog_rcv = tipc_backlog_rcv;
        sk->sk_rcvbuf = sysctl_tipc_rmem[1];
        sk->sk_data_ready = tipc_data_ready;
@@ -303,9 +358,9 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
        atomic_set(&tsk->dupl_rcvcnt, 0);
 
        if (sock->state == SS_READY) {
-               tsk_set_unreturnable(port, true);
+               tsk_set_unreturnable(tsk, true);
                if (sock->type == SOCK_DGRAM)
-                       tsk_set_unreliable(port, true);
+                       tsk_set_unreliable(tsk, true);
        }
        return 0;
 }
@@ -399,7 +454,6 @@ static int tipc_release(struct socket *sock)
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk;
-       struct tipc_port *port;
        struct sk_buff *buf;
        u32 dnode;
 
@@ -411,14 +465,13 @@ static int tipc_release(struct socket *sock)
                return 0;
 
        tsk = tipc_sk(sk);
-       port = &tsk->port;
        lock_sock(sk);
 
        /*
         * Reject all unreceived messages, except on an active connection
         * (which disconnects locally & sends a 'FIN+' to peer)
         */
-       dnode = tsk_peer_node(port);
+       dnode = tsk_peer_node(tsk);
        while (sock->state != SS_DISCONNECTING) {
                buf = __skb_dequeue(&sk->sk_receive_queue);
                if (buf == NULL)
@@ -429,27 +482,27 @@ static int tipc_release(struct socket *sock)
                        if ((sock->state == SS_CONNECTING) ||
                            (sock->state == SS_CONNECTED)) {
                                sock->state = SS_DISCONNECTING;
-                               port->connected = 0;
-                               tipc_node_remove_conn(dnode, port->ref);
+                               tsk->connected = 0;
+                               tipc_node_remove_conn(dnode, tsk->ref);
                        }
                        if (tipc_msg_reverse(buf, &dnode, TIPC_ERR_NO_PORT))
                                tipc_link_xmit(buf, dnode, 0);
                }
        }
 
-       tipc_sk_withdraw(port, 0, NULL);
-       tipc_sk_ref_discard(port->ref);
-       k_cancel_timer(&port->timer);
-       if (port->connected) {
+       tipc_sk_withdraw(tsk, 0, NULL);
+       tipc_sk_ref_discard(tsk->ref);
+       k_cancel_timer(&tsk->timer);
+       if (tsk->connected) {
                buf = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE, TIPC_CONN_MSG,
                                      SHORT_H_SIZE, 0, dnode, tipc_own_addr,
-                                     tsk_peer_port(port),
-                                     port->ref, TIPC_ERR_NO_PORT);
+                                     tsk_peer_port(tsk),
+                                     tsk->ref, TIPC_ERR_NO_PORT);
                if (buf)
-                       tipc_link_xmit(buf, dnode, port->ref);
-               tipc_node_remove_conn(dnode, port->ref);
+                       tipc_link_xmit(buf, dnode, tsk->ref);
+               tipc_node_remove_conn(dnode, tsk->ref);
        }
-       k_term_timer(&port->timer);
+       k_term_timer(&tsk->timer);
 
        /* Discard any remaining (connection-based) messages in receive queue */
        __skb_queue_purge(&sk->sk_receive_queue);
@@ -488,7 +541,7 @@ static int tipc_bind(struct socket *sock, struct sockaddr *uaddr,
 
        lock_sock(sk);
        if (unlikely(!uaddr_len)) {
-               res = tipc_sk_withdraw(&tsk->port, 0, NULL);
+               res = tipc_sk_withdraw(tsk, 0, NULL);
                goto exit;
        }
 
@@ -516,8 +569,8 @@ static int tipc_bind(struct socket *sock, struct sockaddr *uaddr,
        }
 
        res = (addr->scope > 0) ?
-               tipc_sk_publish(&tsk->port, addr->scope, &addr->addr.nameseq) :
-               tipc_sk_withdraw(&tsk->port, -addr->scope, &addr->addr.nameseq);
+               tipc_sk_publish(tsk, addr->scope, &addr->addr.nameseq) :
+               tipc_sk_withdraw(tsk, -addr->scope, &addr->addr.nameseq);
 exit:
        release_sock(sk);
        return res;
@@ -547,10 +600,10 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr,
                if ((sock->state != SS_CONNECTED) &&
                        ((peer != 2) || (sock->state != SS_DISCONNECTING)))
                        return -ENOTCONN;
-               addr->addr.id.ref = tsk_peer_port(&tsk->port);
-               addr->addr.id.node = tsk_peer_node(&tsk->port);
+               addr->addr.id.ref = tsk_peer_port(tsk);
+               addr->addr.id.node = tsk_peer_node(tsk);
        } else {
-               addr->addr.id.ref = tsk->port.ref;
+               addr->addr.id.ref = tsk->ref;
                addr->addr.id.node = tipc_own_addr;
        }
 
@@ -619,7 +672,7 @@ static unsigned int tipc_poll(struct file *file, struct socket *sock,
                break;
        case SS_READY:
        case SS_CONNECTED:
-               if (!tsk->link_cong && !tipc_sk_conn_cong(tsk))
+               if (!tsk->link_cong && !tsk_conn_cong(tsk))
                        mask |= POLLOUT;
                /* fall thru' */
        case SS_CONNECTING:
@@ -650,7 +703,7 @@ static int tipc_sendmcast(struct  socket *sock, struct tipc_name_seq *seq,
                          struct iovec *iov, size_t dsz, long timeo)
 {
        struct sock *sk = sock->sk;
-       struct tipc_msg *mhdr = &tipc_sk(sk)->port.phdr;
+       struct tipc_msg *mhdr = &tipc_sk(sk)->phdr;
        struct sk_buff *buf;
        uint mtu;
        int rc;
@@ -740,17 +793,16 @@ static int tipc_sk_proto_rcv(struct tipc_sock *tsk, u32 *dnode,
                             struct sk_buff *buf)
 {
        struct tipc_msg *msg = buf_msg(buf);
-       struct tipc_port *port = &tsk->port;
        int conn_cong;
 
        /* Ignore if connection cannot be validated: */
        if (!tsk_peer_msg(tsk, msg))
                goto exit;
 
-       port->probing_state = TIPC_CONN_OK;
+       tsk->probing_state = TIPC_CONN_OK;
 
        if (msg_type(msg) == CONN_ACK) {
-               conn_cong = tipc_sk_conn_cong(tsk);
+               conn_cong = tsk_conn_cong(tsk);
                tsk->sent_unacked -= msg_msgcnt(msg);
                if (conn_cong)
                        tsk->sk.sk_write_space(&tsk->sk);
@@ -844,8 +896,7 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
        DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name);
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
-       struct tipc_msg *mhdr = &port->phdr;
+       struct tipc_msg *mhdr = &tsk->phdr;
        struct iovec *iov = m->msg_iov;
        u32 dnode, dport;
        struct sk_buff *buf;
@@ -876,13 +927,13 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
                        rc = -EISCONN;
                        goto exit;
                }
-               if (tsk->port.published) {
+               if (tsk->published) {
                        rc = -EOPNOTSUPP;
                        goto exit;
                }
                if (dest->addrtype == TIPC_ADDR_NAME) {
-                       tsk->port.conn_type = dest->addr.name.name.type;
-                       tsk->port.conn_instance = dest->addr.name.name.instance;
+                       tsk->conn_type = dest->addr.name.name.type;
+                       tsk->conn_instance = dest->addr.name.name.instance;
                }
        }
        rc = dest_name_check(dest, m);
@@ -922,14 +973,14 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
        }
 
 new_mtu:
-       mtu = tipc_node_get_mtu(dnode, tsk->port.ref);
+       mtu = tipc_node_get_mtu(dnode, tsk->ref);
        rc = tipc_msg_build(mhdr, iov, 0, dsz, mtu, &buf);
        if (rc < 0)
                goto exit;
 
        do {
                TIPC_SKB_CB(buf)->wakeup_pending = tsk->link_cong;
-               rc = tipc_link_xmit(buf, dnode, tsk->port.ref);
+               rc = tipc_link_xmit(buf, dnode, tsk->ref);
                if (likely(rc >= 0)) {
                        if (sock->state != SS_READY)
                                sock->state = SS_CONNECTING;
@@ -975,8 +1026,8 @@ static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p)
                prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
                done = sk_wait_event(sk, timeo_p,
                                     (!tsk->link_cong &&
-                                     !tipc_sk_conn_cong(tsk)) ||
-                                    !tsk->port.connected);
+                                     !tsk_conn_cong(tsk)) ||
+                                    !tsk->connected);
                finish_wait(sk_sleep(sk), &wait);
        } while (!done);
        return 0;
@@ -999,11 +1050,10 @@ static int tipc_send_stream(struct kiocb *iocb, struct socket *sock,
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
-       struct tipc_msg *mhdr = &port->phdr;
+       struct tipc_msg *mhdr = &tsk->phdr;
        struct sk_buff *buf;
        DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name);
-       u32 ref = port->ref;
+       u32 ref = tsk->ref;
        int rc = -EINVAL;
        long timeo;
        u32 dnode;
@@ -1031,16 +1081,16 @@ static int tipc_send_stream(struct kiocb *iocb, struct socket *sock,
        }
 
        timeo = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT);
-       dnode = tsk_peer_node(port);
+       dnode = tsk_peer_node(tsk);
 
 next:
-       mtu = port->max_pkt;
+       mtu = tsk->max_pkt;
        send = min_t(uint, dsz - sent, TIPC_MAX_USER_MSG_SIZE);
        rc = tipc_msg_build(mhdr, m->msg_iov, sent, send, mtu, &buf);
        if (unlikely(rc < 0))
                goto exit;
        do {
-               if (likely(!tipc_sk_conn_cong(tsk))) {
+               if (likely(!tsk_conn_cong(tsk))) {
                        rc = tipc_link_xmit(buf, dnode, ref);
                        if (likely(!rc)) {
                                tsk->sent_unacked++;
@@ -1050,7 +1100,7 @@ next:
                                goto next;
                        }
                        if (rc == -EMSGSIZE) {
-                               port->max_pkt = tipc_node_get_mtu(dnode, ref);
+                               tsk->max_pkt = tipc_node_get_mtu(dnode, ref);
                                goto next;
                        }
                        if (rc != -ELINKCONG)
@@ -1089,10 +1139,10 @@ static int tipc_send_packet(struct kiocb *iocb, struct socket *sock,
 
 /* tipc_sk_finish_conn - complete the setup of a connection
  */
-static void tipc_sk_finish_conn(struct tipc_port *port, u32 peer_port,
+static void tipc_sk_finish_conn(struct tipc_sock *tsk, u32 peer_port,
                                u32 peer_node)
 {
-       struct tipc_msg *msg = &port->phdr;
+       struct tipc_msg *msg = &tsk->phdr;
 
        msg_set_destnode(msg, peer_node);
        msg_set_destport(msg, peer_port);
@@ -1100,12 +1150,12 @@ static void tipc_sk_finish_conn(struct tipc_port *port, u32 peer_port,
        msg_set_lookup_scope(msg, 0);
        msg_set_hdr_sz(msg, SHORT_H_SIZE);
 
-       port->probing_interval = CONN_PROBING_INTERVAL;
-       port->probing_state = TIPC_CONN_OK;
-       port->connected = 1;
-       k_start_timer(&port->timer, port->probing_interval);
-       tipc_node_add_conn(peer_node, port->ref, peer_port);
-       port->max_pkt = tipc_node_get_mtu(peer_node, port->ref);
+       tsk->probing_interval = CONN_PROBING_INTERVAL;
+       tsk->probing_state = TIPC_CONN_OK;
+       tsk->connected = 1;
+       k_start_timer(&tsk->timer, tsk->probing_interval);
+       tipc_node_add_conn(peer_node, tsk->ref, peer_port);
+       tsk->max_pkt = tipc_node_get_mtu(peer_node, tsk->ref);
 }
 
 /**
@@ -1132,17 +1182,17 @@ static void set_orig_addr(struct msghdr *m, struct tipc_msg *msg)
 }
 
 /**
- * anc_data_recv - optionally capture ancillary data for received message
+ * tipc_sk_anc_data_recv - optionally capture ancillary data for received message
  * @m: descriptor for message info
  * @msg: received message header
- * @tport: TIPC port associated with message
+ * @tsk: TIPC port associated with message
  *
  * Note: Ancillary data is not captured if not requested by receiver.
  *
  * Returns 0 if successful, otherwise errno
  */
-static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
-                        struct tipc_port *tport)
+static int tipc_sk_anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
+                                struct tipc_sock *tsk)
 {
        u32 anc_data[3];
        u32 err;
@@ -1185,10 +1235,10 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
                anc_data[2] = msg_nameupper(msg);
                break;
        case TIPC_CONN_MSG:
-               has_name = (tport->conn_type != 0);
-               anc_data[0] = tport->conn_type;
-               anc_data[1] = tport->conn_instance;
-               anc_data[2] = tport->conn_instance;
+               has_name = (tsk->conn_type != 0);
+               anc_data[0] = tsk->conn_type;
+               anc_data[1] = tsk->conn_instance;
+               anc_data[2] = tsk->conn_instance;
                break;
        default:
                has_name = 0;
@@ -1202,17 +1252,17 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
        return 0;
 }
 
-static void tipc_sk_send_ack(struct tipc_port *port, uint ack)
+static void tipc_sk_send_ack(struct tipc_sock *tsk, uint ack)
 {
        struct sk_buff *buf = NULL;
        struct tipc_msg *msg;
-       u32 peer_port = tsk_peer_port(port);
-       u32 dnode = tsk_peer_node(port);
+       u32 peer_port = tsk_peer_port(tsk);
+       u32 dnode = tsk_peer_node(tsk);
 
-       if (!port->connected)
+       if (!tsk->connected)
                return;
        buf = tipc_msg_create(CONN_MANAGER, CONN_ACK, INT_H_SIZE, 0, dnode,
-                             tipc_own_addr, peer_port, port->ref, TIPC_OK);
+                             tipc_own_addr, peer_port, tsk->ref, TIPC_OK);
        if (!buf)
                return;
        msg = buf_msg(buf);
@@ -1270,7 +1320,6 @@ static int tipc_recvmsg(struct kiocb *iocb, struct socket *sock,
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
        struct sk_buff *buf;
        struct tipc_msg *msg;
        long timeo;
@@ -1313,7 +1362,7 @@ restart:
        set_orig_addr(m, msg);
 
        /* Capture ancillary data (optional) */
-       res = anc_data_recv(m, msg, port);
+       res = tipc_sk_anc_data_recv(m, msg, tsk);
        if (res)
                goto exit;
 
@@ -1340,7 +1389,7 @@ restart:
        if (likely(!(flags & MSG_PEEK))) {
                if ((sock->state != SS_READY) &&
                    (++tsk->rcv_unacked >= TIPC_CONNACK_INTV)) {
-                       tipc_sk_send_ack(port, tsk->rcv_unacked);
+                       tipc_sk_send_ack(tsk, tsk->rcv_unacked);
                        tsk->rcv_unacked = 0;
                }
                tsk_advance_rx_queue(sk);
@@ -1367,7 +1416,6 @@ static int tipc_recv_stream(struct kiocb *iocb, struct socket *sock,
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
        struct sk_buff *buf;
        struct tipc_msg *msg;
        long timeo;
@@ -1412,7 +1460,7 @@ restart:
        /* Optionally capture sender's address & ancillary data of first msg */
        if (sz_copied == 0) {
                set_orig_addr(m, msg);
-               res = anc_data_recv(m, msg, port);
+               res = tipc_sk_anc_data_recv(m, msg, tsk);
                if (res)
                        goto exit;
        }
@@ -1451,7 +1499,7 @@ restart:
        /* Consume received message (optional) */
        if (likely(!(flags & MSG_PEEK))) {
                if (unlikely(++tsk->rcv_unacked >= TIPC_CONNACK_INTV)) {
-                       tipc_sk_send_ack(port, tsk->rcv_unacked);
+                       tipc_sk_send_ack(tsk, tsk->rcv_unacked);
                        tsk->rcv_unacked = 0;
                }
                tsk_advance_rx_queue(sk);
@@ -1513,10 +1561,8 @@ static void tipc_data_ready(struct sock *sk)
 static int filter_connect(struct tipc_sock *tsk, struct sk_buff **buf)
 {
        struct sock *sk = &tsk->sk;
-       struct tipc_port *port = &tsk->port;
        struct socket *sock = sk->sk_socket;
        struct tipc_msg *msg = buf_msg(*buf);
-
        int retval = -TIPC_ERR_NO_PORT;
 
        if (msg_mcast(msg))
@@ -1528,10 +1574,10 @@ static int filter_connect(struct tipc_sock *tsk, struct sk_buff **buf)
                if (tsk_peer_msg(tsk, msg)) {
                        if (unlikely(msg_errcode(msg))) {
                                sock->state = SS_DISCONNECTING;
-                               port->connected = 0;
+                               tsk->connected = 0;
                                /* let timer expire on it's own */
-                               tipc_node_remove_conn(tsk_peer_node(port),
-                                                     port->ref);
+                               tipc_node_remove_conn(tsk_peer_node(tsk),
+                                                     tsk->ref);
                        }
                        retval = TIPC_OK;
                }
@@ -1556,8 +1602,8 @@ static int filter_connect(struct tipc_sock *tsk, struct sk_buff **buf)
                        break;
                }
 
-               tipc_sk_finish_conn(port, msg_origport(msg), msg_orignode(msg));
-               msg_set_importance(&port->phdr, msg_importance(msg));
+               tipc_sk_finish_conn(tsk, msg_origport(msg), msg_orignode(msg));
+               msg_set_importance(&tsk->phdr, msg_importance(msg));
                sock->state = SS_CONNECTED;
 
                /* If an incoming message is an 'ACK-', it should be
@@ -1715,7 +1761,6 @@ static int tipc_backlog_rcv(struct sock *sk, struct sk_buff *buf)
 int tipc_sk_rcv(struct sk_buff *buf)
 {
        struct tipc_sock *tsk;
-       struct tipc_port *port;
        struct sock *sk;
        u32 dport = msg_destport(buf_msg(buf));
        int rc = TIPC_OK;
@@ -1728,7 +1773,6 @@ int tipc_sk_rcv(struct sk_buff *buf)
                rc = tipc_msg_eval(buf, &dnode);
                goto exit;
        }
-       port = &tsk->port;
        sk = &tsk->sk;
 
        /* Queue message */
@@ -1931,7 +1975,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags)
 {
        struct sock *new_sk, *sk = sock->sk;
        struct sk_buff *buf;
-       struct tipc_port *new_port;
+       struct tipc_sock *new_tsock;
        struct tipc_msg *msg;
        long timeo;
        int res;
@@ -1954,7 +1998,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags)
                goto exit;
 
        new_sk = new_sock->sk;
-       new_port = &tipc_sk(new_sk)->port;
+       new_tsock = tipc_sk(new_sk);
        msg = buf_msg(buf);
 
        /* we lock on new_sk; but lockdep sees the lock on sk */
@@ -1967,13 +2011,13 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags)
        tsk_rej_rx_queue(new_sk);
 
        /* Connect new socket to it's peer */
-       tipc_sk_finish_conn(new_port, msg_origport(msg), msg_orignode(msg));
+       tipc_sk_finish_conn(new_tsock, msg_origport(msg), msg_orignode(msg));
        new_sock->state = SS_CONNECTED;
 
-       tsk_set_importance(new_port, msg_importance(msg));
+       tsk_set_importance(new_tsock, msg_importance(msg));
        if (msg_named(msg)) {
-               new_port->conn_type = msg_nametype(msg);
-               new_port->conn_instance = msg_nameinst(msg);
+               new_tsock->conn_type = msg_nametype(msg);
+               new_tsock->conn_instance = msg_nameinst(msg);
        }
 
        /*
@@ -2009,7 +2053,6 @@ static int tipc_shutdown(struct socket *sock, int how)
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
        struct sk_buff *buf;
        u32 dnode;
        int res;
@@ -2032,20 +2075,20 @@ restart:
                                goto restart;
                        }
                        if (tipc_msg_reverse(buf, &dnode, TIPC_CONN_SHUTDOWN))
-                               tipc_link_xmit(buf, dnode, port->ref);
-                       tipc_node_remove_conn(dnode, port->ref);
+                               tipc_link_xmit(buf, dnode, tsk->ref);
+                       tipc_node_remove_conn(dnode, tsk->ref);
                } else {
-                       dnode = tsk_peer_node(port);
+                       dnode = tsk_peer_node(tsk);
                        buf = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE,
                                              TIPC_CONN_MSG, SHORT_H_SIZE,
                                              0, dnode, tipc_own_addr,
-                                             tsk_peer_port(port),
-                                             port->ref, TIPC_CONN_SHUTDOWN);
-                       tipc_link_xmit(buf, dnode, port->ref);
+                                             tsk_peer_port(tsk),
+                                             tsk->ref, TIPC_CONN_SHUTDOWN);
+                       tipc_link_xmit(buf, dnode, tsk->ref);
                }
-               port->connected = 0;
+               tsk->connected = 0;
                sock->state = SS_DISCONNECTING;
-               tipc_node_remove_conn(dnode, port->ref);
+               tipc_node_remove_conn(dnode, tsk->ref);
                /* fall through */
 
        case SS_DISCONNECTING:
@@ -2069,7 +2112,6 @@ restart:
 static void tipc_sk_timeout(unsigned long ref)
 {
        struct tipc_sock *tsk;
-       struct tipc_port *port;
        struct sock *sk;
        struct sk_buff *buf = NULL;
        u32 peer_port, peer_node;
@@ -2078,17 +2120,16 @@ static void tipc_sk_timeout(unsigned long ref)
        if (!tsk)
                goto exit;
        sk = &tsk->sk;
-       port = &tsk->port;
 
        bh_lock_sock(sk);
-       if (!port->connected) {
+       if (!tsk->connected) {
                bh_unlock_sock(sk);
                goto exit;
        }
-       peer_port = tsk_peer_port(port);
-       peer_node = tsk_peer_node(port);
+       peer_port = tsk_peer_port(tsk);
+       peer_node = tsk_peer_node(tsk);
 
-       if (port->probing_state == TIPC_CONN_PROBING) {
+       if (tsk->probing_state == TIPC_CONN_PROBING) {
                /* Previous probe not answered -> self abort */
                buf = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE, TIPC_CONN_MSG,
                                      SHORT_H_SIZE, 0, tipc_own_addr,
@@ -2098,8 +2139,8 @@ static void tipc_sk_timeout(unsigned long ref)
                buf = tipc_msg_create(CONN_MANAGER, CONN_PROBE, INT_H_SIZE,
                                      0, peer_node, tipc_own_addr,
                                      peer_port, ref, TIPC_OK);
-               port->probing_state = TIPC_CONN_PROBING;
-               k_start_timer(&port->timer, port->probing_interval);
+               tsk->probing_state = TIPC_CONN_PROBING;
+               k_start_timer(&tsk->timer, tsk->probing_interval);
        }
        bh_unlock_sock(sk);
        if (buf)
@@ -2108,37 +2149,37 @@ exit:
        tipc_sk_put(tsk);
 }
 
-static int tipc_sk_publish(struct tipc_port *port, uint scope,
+static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
                           struct tipc_name_seq const *seq)
 {
        struct publication *publ;
        u32 key;
 
-       if (port->connected)
+       if (tsk->connected)
                return -EINVAL;
-       key = port->ref + port->pub_count + 1;
-       if (key == port->ref)
+       key = tsk->ref + tsk->pub_count + 1;
+       if (key == tsk->ref)
                return -EADDRINUSE;
 
        publ = tipc_nametbl_publish(seq->type, seq->lower, seq->upper,
-                                   scope, port->ref, key);
+                                   scope, tsk->ref, key);
        if (unlikely(!publ))
                return -EINVAL;
 
-       list_add(&publ->pport_list, &port->publications);
-       port->pub_count++;
-       port->published = 1;
+       list_add(&publ->pport_list, &tsk->publications);
+       tsk->pub_count++;
+       tsk->published = 1;
        return 0;
 }
 
-static int tipc_sk_withdraw(struct tipc_port *port, uint scope,
+static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
                            struct tipc_name_seq const *seq)
 {
        struct publication *publ;
        struct publication *safe;
        int rc = -EINVAL;
 
-       list_for_each_entry_safe(publ, safe, &port->publications, pport_list) {
+       list_for_each_entry_safe(publ, safe, &tsk->publications, pport_list) {
                if (seq) {
                        if (publ->scope != scope)
                                continue;
@@ -2157,12 +2198,12 @@ static int tipc_sk_withdraw(struct tipc_port *port, uint scope,
                                      publ->ref, publ->key);
                rc = 0;
        }
-       if (list_empty(&port->publications))
-               port->published = 0;
+       if (list_empty(&tsk->publications))
+               tsk->published = 0;
        return rc;
 }
 
-static int tipc_sk_show(struct tipc_port *port, char *buf,
+static int tipc_sk_show(struct tipc_sock *tsk, char *buf,
                        int len, int full_id)
 {
        struct publication *publ;
@@ -2172,26 +2213,26 @@ static int tipc_sk_show(struct tipc_port *port, char *buf,
                ret = tipc_snprintf(buf, len, "<%u.%u.%u:%u>:",
                                    tipc_zone(tipc_own_addr),
                                    tipc_cluster(tipc_own_addr),
-                                   tipc_node(tipc_own_addr), port->ref);
+                                   tipc_node(tipc_own_addr), tsk->ref);
        else
-               ret = tipc_snprintf(buf, len, "%-10u:", port->ref);
+               ret = tipc_snprintf(buf, len, "%-10u:", tsk->ref);
 
-       if (port->connected) {
-               u32 dport = tsk_peer_port(port);
-               u32 destnode = tsk_peer_node(port);
+       if (tsk->connected) {
+               u32 dport = tsk_peer_port(tsk);
+               u32 destnode = tsk_peer_node(tsk);
 
                ret += tipc_snprintf(buf + ret, len - ret,
                                     " connected to <%u.%u.%u:%u>",
                                     tipc_zone(destnode),
                                     tipc_cluster(destnode),
                                     tipc_node(destnode), dport);
-               if (port->conn_type != 0)
+               if (tsk->conn_type != 0)
                        ret += tipc_snprintf(buf + ret, len - ret,
-                                            " via {%u,%u}", port->conn_type,
-                                            port->conn_instance);
-       } else if (port->published) {
+                                            " via {%u,%u}", tsk->conn_type,
+                                            tsk->conn_instance);
+       } else if (tsk->published) {
                ret += tipc_snprintf(buf + ret, len - ret, " bound to");
-               list_for_each_entry(publ, &port->publications, pport_list) {
+               list_for_each_entry(publ, &tsk->publications, pport_list) {
                        if (publ->lower == publ->upper)
                                ret += tipc_snprintf(buf + ret, len - ret,
                                                     " {%u,%u}", publ->type,
@@ -2226,7 +2267,7 @@ struct sk_buff *tipc_sk_socks_show(void)
        tsk = tipc_sk_get_next(&ref);
        for (; tsk; tsk = tipc_sk_get_next(&ref)) {
                lock_sock(&tsk->sk);
-               str_len += tipc_sk_show(&tsk->port, pb + str_len,
+               str_len += tipc_sk_show(tsk, pb + str_len,
                                        pb_len - str_len, 0);
                release_sock(&tsk->sk);
                tipc_sk_put(tsk);
@@ -2249,7 +2290,7 @@ void tipc_sk_reinit(void)
 
        for (; tsk; tsk = tipc_sk_get_next(&ref)) {
                lock_sock(&tsk->sk);
-               msg = &tsk->port.phdr;
+               msg = &tsk->phdr;
                msg_set_prevnode(msg, tipc_own_addr);
                msg_set_orignode(msg, tipc_own_addr);
                release_sock(&tsk->sk);
@@ -2512,7 +2553,6 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt,
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
        u32 value;
        int res;
 
@@ -2530,16 +2570,16 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt,
 
        switch (opt) {
        case TIPC_IMPORTANCE:
-               res = tsk_set_importance(port, value);
+               res = tsk_set_importance(tsk, value);
                break;
        case TIPC_SRC_DROPPABLE:
                if (sock->type != SOCK_STREAM)
-                       tsk_set_unreliable(port, value);
+                       tsk_set_unreliable(tsk, value);
                else
                        res = -ENOPROTOOPT;
                break;
        case TIPC_DEST_DROPPABLE:
-               tsk_set_unreturnable(port, value);
+               tsk_set_unreturnable(tsk, value);
                break;
        case TIPC_CONN_TIMEOUT:
                tipc_sk(sk)->conn_timeout = value;
@@ -2572,7 +2612,6 @@ static int tipc_getsockopt(struct socket *sock, int lvl, int opt,
 {
        struct sock *sk = sock->sk;
        struct tipc_sock *tsk = tipc_sk(sk);
-       struct tipc_port *port = &tsk->port;
        int len;
        u32 value;
        int res;
@@ -2589,16 +2628,16 @@ static int tipc_getsockopt(struct socket *sock, int lvl, int opt,
 
        switch (opt) {
        case TIPC_IMPORTANCE:
-               value = tsk_importance(port);
+               value = tsk_importance(tsk);
                break;
        case TIPC_SRC_DROPPABLE:
-               value = tsk_unreliable(port);
+               value = tsk_unreliable(tsk);
                break;
        case TIPC_DEST_DROPPABLE:
-               value = tsk_unreturnable(port);
+               value = tsk_unreturnable(tsk);
                break;
        case TIPC_CONN_TIMEOUT:
-               value = tipc_sk(sk)->conn_timeout;
+               value = tsk->conn_timeout;
                /* no need to set "res", since already 0 at this point */
                break;
        case TIPC_NODE_RECVQ_DEPTH: