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tipc: make tipc node table aware of net namespace

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Global variables associated with node table are below:
- node table list (node_htable)
- node hash table list (tipc_node_list)
- node table lock (node_list_lock)
- node number counter (tipc_num_nodes)
- node link number counter (tipc_num_links)

To make node table support namespace, above global variables must be
moved to tipc_net structure in order to keep secret for different
namespaces. As a consequence, these variables are allocated and
initialized when namespace is created, and deallocated when namespace
is destroyed. After the change, functions associated with these
variables have to utilize a namespace pointer to access them. So
adding namespace pointer as a parameter of these functions is the
major change made in the commit.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue 2015-01-09 15:27:05 +08:00 • committed by David S. Miller
parent c93d3baa24
commit f2f9800d49
21 changed files with 329 additions and 244 deletions
Download patch file Download diff file Expand all files Collapse all files

72
net/tipc/socket.c
View file

@ -257,7 +257,7 @@ static void tsk_rej_rx_queue(struct sock *sk)
while ((skb = __skb_dequeue(&sk->sk_receive_queue))) {
if (tipc_msg_reverse(skb, &dnode, TIPC_ERR_NO_PORT))
tipc_link_xmit_skb(skb, dnode, 0);
tipc_link_xmit_skb(sock_net(sk), skb, dnode, 0);
}
}
@ -473,6 +473,7 @@ static void tipc_sk_callback(struct rcu_head *head)
static int tipc_release(struct socket *sock)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct tipc_sock *tsk;
struct sk_buff *skb;
u32 dnode, probing_state;
@ -503,10 +504,10 @@ static int tipc_release(struct socket *sock)
(sock->state == SS_CONNECTED)) {
sock->state = SS_DISCONNECTING;
tsk->connected = 0;
tipc_node_remove_conn(dnode, tsk->portid);
tipc_node_remove_conn(net, dnode, tsk->portid);
}
if (tipc_msg_reverse(skb, &dnode, TIPC_ERR_NO_PORT))
tipc_link_xmit_skb(skb, dnode, 0);
tipc_link_xmit_skb(net, skb, dnode, 0);
}
}
@ -521,8 +522,8 @@ static int tipc_release(struct socket *sock)
tsk_peer_port(tsk),
tsk->portid, TIPC_ERR_NO_PORT);
if (skb)
tipc_link_xmit_skb(skb, dnode, tsk->portid);
tipc_node_remove_conn(dnode, tsk->portid);
tipc_link_xmit_skb(net, skb, dnode, tsk->portid);
tipc_node_remove_conn(net, dnode, tsk->portid);
}
/* Discard any remaining (connection-based) messages in receive queue */
@ -725,6 +726,7 @@ static int tipc_sendmcast(struct socket *sock, struct tipc_name_seq *seq,
struct msghdr *msg, size_t dsz, long timeo)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct tipc_msg *mhdr = &tipc_sk(sk)->phdr;
struct sk_buff_head head;
uint mtu;
@ -747,7 +749,7 @@ new_mtu:
return rc;
do {
rc = tipc_bclink_xmit(&head);
rc = tipc_bclink_xmit(net, &head);
if (likely(rc >= 0)) {
rc = dsz;
break;
@ -766,7 +768,7 @@ new_mtu:
/* tipc_sk_mcast_rcv - Deliver multicast message to all destination sockets
*/
void tipc_sk_mcast_rcv(struct sk_buff *buf)
void tipc_sk_mcast_rcv(struct net *net, struct sk_buff *buf)
{
struct tipc_msg *msg = buf_msg(buf);
struct tipc_port_list dports = {0, NULL, };
@ -798,7 +800,7 @@ void tipc_sk_mcast_rcv(struct sk_buff *buf)
continue;
}
msg_set_destport(msg, item->ports[i]);
tipc_sk_rcv(b);
tipc_sk_rcv(net, b);
}
}
tipc_port_list_free(&dports);
@ -886,6 +888,7 @@ 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 net *net = sock_net(sk);
struct tipc_msg *mhdr = &tsk->phdr;
u32 dnode, dport;
struct sk_buff_head head;
@ -960,7 +963,7 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
}
new_mtu:
mtu = tipc_node_get_mtu(dnode, tsk->portid);
mtu = tipc_node_get_mtu(net, dnode, tsk->portid);
__skb_queue_head_init(&head);
rc = tipc_msg_build(mhdr, m, 0, dsz, mtu, &head);
if (rc < 0)
@ -969,7 +972,7 @@ new_mtu:
do {
skb = skb_peek(&head);
TIPC_SKB_CB(skb)->wakeup_pending = tsk->link_cong;
rc = tipc_link_xmit(&head, dnode, tsk->portid);
rc = tipc_link_xmit(net, &head, dnode, tsk->portid);
if (likely(rc >= 0)) {
if (sock->state != SS_READY)
sock->state = SS_CONNECTING;
@ -1038,6 +1041,7 @@ static int tipc_send_stream(struct kiocb *iocb, struct socket *sock,
struct msghdr *m, size_t dsz)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct tipc_sock *tsk = tipc_sk(sk);
struct tipc_msg *mhdr = &tsk->phdr;
struct sk_buff_head head;
@ -1081,7 +1085,7 @@ next:
goto exit;
do {
if (likely(!tsk_conn_cong(tsk))) {
rc = tipc_link_xmit(&head, dnode, portid);
rc = tipc_link_xmit(net, &head, dnode, portid);
if (likely(!rc)) {
tsk->sent_unacked++;
sent += send;
@ -1090,7 +1094,8 @@ next:
goto next;
}
if (rc == -EMSGSIZE) {
tsk->max_pkt = tipc_node_get_mtu(dnode, portid);
tsk->max_pkt = tipc_node_get_mtu(net, dnode,
portid);
goto next;
}
if (rc != -ELINKCONG)
@ -1132,6 +1137,7 @@ static int tipc_send_packet(struct kiocb *iocb, struct socket *sock,
static void tipc_sk_finish_conn(struct tipc_sock *tsk, u32 peer_port,
u32 peer_node)
{
struct net *net = sock_net(&tsk->sk);
struct tipc_msg *msg = &tsk->phdr;
msg_set_destnode(msg, peer_node);
@ -1145,8 +1151,8 @@ static void tipc_sk_finish_conn(struct tipc_sock *tsk, u32 peer_port,
tsk->connected = 1;
if (!mod_timer(&tsk->timer, jiffies + tsk->probing_intv))
sock_hold(&tsk->sk);
tipc_node_add_conn(peer_node, tsk->portid, peer_port);
tsk->max_pkt = tipc_node_get_mtu(peer_node, tsk->portid);
tipc_node_add_conn(net, peer_node, tsk->portid, peer_port);
tsk->max_pkt = tipc_node_get_mtu(net, peer_node, tsk->portid);
}
/**
@ -1245,6 +1251,7 @@ static int tipc_sk_anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
static void tipc_sk_send_ack(struct tipc_sock *tsk, uint ack)
{
struct net *net = sock_net(&tsk->sk);
struct sk_buff *skb = NULL;
struct tipc_msg *msg;
u32 peer_port = tsk_peer_port(tsk);
@ -1258,7 +1265,7 @@ static void tipc_sk_send_ack(struct tipc_sock *tsk, uint ack)
return;
msg = buf_msg(skb);
msg_set_msgcnt(msg, ack);
tipc_link_xmit_skb(skb, dnode, msg_link_selector(msg));
tipc_link_xmit_skb(net, skb, dnode, msg_link_selector(msg));
}
static int tipc_wait_for_rcvmsg(struct socket *sock, long *timeop)
@ -1551,6 +1558,7 @@ 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 net *net = sock_net(sk);
struct socket *sock = sk->sk_socket;
struct tipc_msg *msg = buf_msg(*buf);
int retval = -TIPC_ERR_NO_PORT;
@ -1566,7 +1574,7 @@ static int filter_connect(struct tipc_sock *tsk, struct sk_buff **buf)
sock->state = SS_DISCONNECTING;
tsk->connected = 0;
/* let timer expire on it's own */
tipc_node_remove_conn(tsk_peer_node(tsk),
tipc_node_remove_conn(net, tsk_peer_node(tsk),
tsk->portid);
}
retval = TIPC_OK;
@ -1737,7 +1745,7 @@ static int tipc_backlog_rcv(struct sock *sk, struct sk_buff *skb)
if ((rc < 0) && !tipc_msg_reverse(skb, &onode, -rc))
return 0;
tipc_link_xmit_skb(skb, onode, 0);
tipc_link_xmit_skb(sock_net(sk), skb, onode, 0);
return 0;
}
@ -1748,7 +1756,7 @@ static int tipc_backlog_rcv(struct sock *sk, struct sk_buff *skb)
* Consumes buffer
* Returns 0 if success, or errno: -EHOSTUNREACH
*/
int tipc_sk_rcv(struct sk_buff *skb)
int tipc_sk_rcv(struct net *net, struct sk_buff *skb)
{
struct tipc_sock *tsk;
struct sock *sk;
@ -1785,7 +1793,7 @@ exit:
if ((rc < 0) && !tipc_msg_reverse(skb, &dnode, -rc))
return -EHOSTUNREACH;
tipc_link_xmit_skb(skb, dnode, 0);
tipc_link_xmit_skb(net, skb, dnode, 0);
return (rc < 0) ? -EHOSTUNREACH : 0;
}
@ -2042,6 +2050,7 @@ exit:
static int tipc_shutdown(struct socket *sock, int how)
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct tipc_sock *tsk = tipc_sk(sk);
struct sk_buff *skb;
u32 dnode;
@ -2065,8 +2074,9 @@ restart:
goto restart;
}
if (tipc_msg_reverse(skb, &dnode, TIPC_CONN_SHUTDOWN))
tipc_link_xmit_skb(skb, dnode, tsk->portid);
tipc_node_remove_conn(dnode, tsk->portid);
tipc_link_xmit_skb(net, skb, dnode,
tsk->portid);
tipc_node_remove_conn(net, dnode, tsk->portid);
} else {
dnode = tsk_peer_node(tsk);
skb = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE,
@ -2074,11 +2084,11 @@ restart:
0, dnode, tipc_own_addr,
tsk_peer_port(tsk),
tsk->portid, TIPC_CONN_SHUTDOWN);
tipc_link_xmit_skb(skb, dnode, tsk->portid);
tipc_link_xmit_skb(net, skb, dnode, tsk->portid);
}
tsk->connected = 0;
sock->state = SS_DISCONNECTING;
tipc_node_remove_conn(dnode, tsk->portid);
tipc_node_remove_conn(net, dnode, tsk->portid);
/* fall through */
case SS_DISCONNECTING:
@ -2130,7 +2140,7 @@ static void tipc_sk_timeout(unsigned long data)
}
bh_unlock_sock(sk);
if (skb)
tipc_link_xmit_skb(skb, peer_node, tsk->portid);
tipc_link_xmit_skb(sock_net(sk), skb, peer_node, tsk->portid);
exit:
sock_put(sk);
}
@ -2138,6 +2148,7 @@ exit:
static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
struct tipc_name_seq const *seq)
{
struct net *net = sock_net(&tsk->sk);
struct publication *publ;
u32 key;
@ -2147,7 +2158,7 @@ static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
if (key == tsk->portid)
return -EADDRINUSE;
publ = tipc_nametbl_publish(seq->type, seq->lower, seq->upper,
publ = tipc_nametbl_publish(net, seq->type, seq->lower, seq->upper,
scope, tsk->portid, key);
if (unlikely(!publ))
return -EINVAL;
@ -2161,6 +2172,7 @@ static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
struct tipc_name_seq const *seq)
{
struct net *net = sock_net(&tsk->sk);
struct publication *publ;
struct publication *safe;
int rc = -EINVAL;
@ -2175,12 +2187,12 @@ static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
continue;
if (publ->upper != seq->upper)
break;
tipc_nametbl_withdraw(publ->type, publ->lower,
tipc_nametbl_withdraw(net, publ->type, publ->lower,
publ->ref, publ->key);
rc = 0;
break;
}
tipc_nametbl_withdraw(publ->type, publ->lower,
tipc_nametbl_withdraw(net, publ->type, publ->lower,
publ->ref, publ->key);
rc = 0;
}
@ -2492,8 +2504,9 @@ static int tipc_getsockopt(struct socket *sock, int lvl, int opt,
return put_user(sizeof(value), ol);
}
static int tipc_ioctl(struct socket *sk, unsigned int cmd, unsigned long arg)
static int tipc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
struct sock *sk = sock->sk;
struct tipc_sioc_ln_req lnr;
void __user *argp = (void __user *)arg;
@ -2501,7 +2514,8 @@ static int tipc_ioctl(struct socket *sk, unsigned int cmd, unsigned long arg)
case SIOCGETLINKNAME:
if (copy_from_user(&lnr, argp, sizeof(lnr)))
return -EFAULT;
if (!tipc_node_get_linkname(lnr.bearer_id & 0xffff, lnr.peer,
if (!tipc_node_get_linkname(sock_net(sk),
lnr.bearer_id & 0xffff, lnr.peer,
lnr.linkname, TIPC_MAX_LINK_NAME)) {
if (copy_to_user(argp, &lnr, sizeof(lnr)))
return -EFAULT;