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-rw-r--r--net/tipc/addr.c45
-rw-r--r--net/tipc/addr.h45
-rw-r--r--net/tipc/bcast.c372
-rw-r--r--net/tipc/bcast.h113
-rw-r--r--net/tipc/bearer.c141
-rw-r--r--net/tipc/bearer.h46
-rw-r--r--net/tipc/config.c66
-rw-r--r--net/tipc/config.h6
-rw-r--r--net/tipc/core.c140
-rw-r--r--net/tipc/core.h167
-rw-r--r--net/tipc/discover.c84
-rw-r--r--net/tipc/discover.h8
-rw-r--r--net/tipc/link.c322
-rw-r--r--net/tipc/link.h36
-rw-r--r--net/tipc/msg.c71
-rw-r--r--net/tipc/msg.h60
-rw-r--r--net/tipc/name_distr.c115
-rw-r--r--net/tipc/name_distr.h16
-rw-r--r--net/tipc/name_table.c180
-rw-r--r--net/tipc/name_table.h33
-rw-r--r--net/tipc/net.c54
-rw-r--r--net/tipc/net.h4
-rw-r--r--net/tipc/netlink.c17
-rw-r--r--net/tipc/netlink.h3
-rw-r--r--net/tipc/node.c159
-rw-r--r--net/tipc/node.h35
-rw-r--r--net/tipc/server.c6
-rw-r--r--net/tipc/server.h17
-rw-r--r--net/tipc/socket.c255
-rw-r--r--net/tipc/socket.h19
-rw-r--r--net/tipc/subscr.c131
-rw-r--r--net/tipc/subscr.h14
32 files changed, 1503 insertions, 1277 deletions
diff --git a/net/tipc/addr.c b/net/tipc/addr.c
index 357b74b26f9e..48fd3b5a73fb 100644
--- a/net/tipc/addr.c
+++ b/net/tipc/addr.c
@@ -34,8 +34,51 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#include "core.h"
+#include <linux/kernel.h>
#include "addr.h"
+#include "core.h"
+
+/**
+ * in_own_cluster - test for cluster inclusion; <0.0.0> always matches
+ */
+int in_own_cluster(struct net *net, u32 addr)
+{
+ return in_own_cluster_exact(net, addr) || !addr;
+}
+
+int in_own_cluster_exact(struct net *net, u32 addr)
+{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ return !((addr ^ tn->own_addr) >> 12);
+}
+
+/**
+ * in_own_node - test for node inclusion; <0.0.0> always matches
+ */
+int in_own_node(struct net *net, u32 addr)
+{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ return (addr == tn->own_addr) || !addr;
+}
+
+/**
+ * addr_domain - convert 2-bit scope value to equivalent message lookup domain
+ *
+ * Needed when address of a named message must be looked up a second time
+ * after a network hop.
+ */
+u32 addr_domain(struct net *net, u32 sc)
+{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ if (likely(sc == TIPC_NODE_SCOPE))
+ return tn->own_addr;
+ if (sc == TIPC_CLUSTER_SCOPE)
+ return tipc_cluster_mask(tn->own_addr);
+ return tipc_zone_mask(tn->own_addr);
+}
/**
* tipc_addr_domain_valid - validates a network domain address
diff --git a/net/tipc/addr.h b/net/tipc/addr.h
index a74acf9ee804..c700c2d28e09 100644
--- a/net/tipc/addr.h
+++ b/net/tipc/addr.h
@@ -37,7 +37,10 @@
#ifndef _TIPC_ADDR_H
#define _TIPC_ADDR_H
-#include "core.h"
+#include <linux/types.h>
+#include <linux/tipc.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
#define TIPC_ZONE_MASK 0xff000000u
#define TIPC_CLUSTER_MASK 0xfffff000u
@@ -52,42 +55,10 @@ static inline u32 tipc_cluster_mask(u32 addr)
return addr & TIPC_CLUSTER_MASK;
}
-static inline int in_own_cluster_exact(u32 addr)
-{
- return !((addr ^ tipc_own_addr) >> 12);
-}
-
-/**
- * in_own_node - test for node inclusion; <0.0.0> always matches
- */
-static inline int in_own_node(u32 addr)
-{
- return (addr == tipc_own_addr) || !addr;
-}
-
-/**
- * in_own_cluster - test for cluster inclusion; <0.0.0> always matches
- */
-static inline int in_own_cluster(u32 addr)
-{
- return in_own_cluster_exact(addr) || !addr;
-}
-
-/**
- * addr_domain - convert 2-bit scope value to equivalent message lookup domain
- *
- * Needed when address of a named message must be looked up a second time
- * after a network hop.
- */
-static inline u32 addr_domain(u32 sc)
-{
- if (likely(sc == TIPC_NODE_SCOPE))
- return tipc_own_addr;
- if (sc == TIPC_CLUSTER_SCOPE)
- return tipc_cluster_mask(tipc_own_addr);
- return tipc_zone_mask(tipc_own_addr);
-}
-
+int in_own_cluster(struct net *net, u32 addr);
+int in_own_cluster_exact(struct net *net, u32 addr);
+int in_own_node(struct net *net, u32 addr);
+u32 addr_domain(struct net *net, u32 sc);
int tipc_addr_domain_valid(u32);
int tipc_addr_node_valid(u32 addr);
int tipc_in_scope(u32 domain, u32 addr);
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 96ceefeb9daf..53f8bf059fec 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -35,77 +35,14 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#include "core.h"
-#include "link.h"
#include "socket.h"
#include "msg.h"
#include "bcast.h"
#include "name_distr.h"
+#include "core.h"
#define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */
#define BCLINK_WIN_DEFAULT 20 /* bcast link window size (default) */
-#define BCBEARER MAX_BEARERS
-
-/**
- * struct tipc_bcbearer_pair - a pair of bearers used by broadcast link
- * @primary: pointer to primary bearer
- * @secondary: pointer to secondary bearer
- *
- * Bearers must have same priority and same set of reachable destinations
- * to be paired.
- */
-
-struct tipc_bcbearer_pair {
- struct tipc_bearer *primary;
- struct tipc_bearer *secondary;
-};
-
-/**
- * struct tipc_bcbearer - bearer used by broadcast link
- * @bearer: (non-standard) broadcast bearer structure
- * @media: (non-standard) broadcast media structure
- * @bpairs: array of bearer pairs
- * @bpairs_temp: temporary array of bearer pairs used by tipc_bcbearer_sort()
- * @remains: temporary node map used by tipc_bcbearer_send()
- * @remains_new: temporary node map used tipc_bcbearer_send()
- *
- * Note: The fields labelled "temporary" are incorporated into the bearer
- * to avoid consuming potentially limited stack space through the use of
- * large local variables within multicast routines. Concurrent access is
- * prevented through use of the spinlock "bclink_lock".
- */
-struct tipc_bcbearer {
- struct tipc_bearer bearer;
- struct tipc_media media;
- struct tipc_bcbearer_pair bpairs[MAX_BEARERS];
- struct tipc_bcbearer_pair bpairs_temp[TIPC_MAX_LINK_PRI + 1];
- struct tipc_node_map remains;
- struct tipc_node_map remains_new;
-};
-
-/**
- * struct tipc_bclink - link used for broadcast messages
- * @lock: spinlock governing access to structure
- * @link: (non-standard) broadcast link structure
- * @node: (non-standard) node structure representing b'cast link's peer node
- * @flags: represent bclink states
- * @bcast_nodes: map of broadcast-capable nodes
- * @retransmit_to: node that most recently requested a retransmit
- *
- * Handles sequence numbering, fragmentation, bundling, etc.
- */
-struct tipc_bclink {
- spinlock_t lock;
- struct tipc_link link;
- struct tipc_node node;
- unsigned int flags;
- struct tipc_node_map bcast_nodes;
- struct tipc_node *retransmit_to;
-};
-
-static struct tipc_bcbearer *bcbearer;
-static struct tipc_bclink *bclink;
-static struct tipc_link *bcl;
const char tipc_bclink_name[] = "broadcast-link";
@@ -115,25 +52,28 @@ static void tipc_nmap_diff(struct tipc_node_map *nm_a,
static void tipc_nmap_add(struct tipc_node_map *nm_ptr, u32 node);
static void tipc_nmap_remove(struct tipc_node_map *nm_ptr, u32 node);
-static void tipc_bclink_lock(void)
+static void tipc_bclink_lock(struct net *net)
{
- spin_lock_bh(&bclink->lock);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ spin_lock_bh(&tn->bclink->lock);
}
-static void tipc_bclink_unlock(void)
+static void tipc_bclink_unlock(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_node *node = NULL;
- if (likely(!bclink->flags)) {
- spin_unlock_bh(&bclink->lock);
+ if (likely(!tn->bclink->flags)) {
+ spin_unlock_bh(&tn->bclink->lock);
return;
}
- if (bclink->flags & TIPC_BCLINK_RESET) {
- bclink->flags &= ~TIPC_BCLINK_RESET;
- node = tipc_bclink_retransmit_to();
+ if (tn->bclink->flags & TIPC_BCLINK_RESET) {
+ tn->bclink->flags &= ~TIPC_BCLINK_RESET;
+ node = tipc_bclink_retransmit_to(net);
}
- spin_unlock_bh(&bclink->lock);
+ spin_unlock_bh(&tn->bclink->lock);
if (node)
tipc_link_reset_all(node);
@@ -144,9 +84,11 @@ uint tipc_bclink_get_mtu(void)
return MAX_PKT_DEFAULT_MCAST;
}
-void tipc_bclink_set_flags(unsigned int flags)
+void tipc_bclink_set_flags(struct net *net, unsigned int flags)
{
- bclink->flags |= flags;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ tn->bclink->flags |= flags;
}
static u32 bcbuf_acks(struct sk_buff *buf)
@@ -164,31 +106,40 @@ static void bcbuf_decr_acks(struct sk_buff *buf)
bcbuf_set_acks(buf, bcbuf_acks(buf) - 1);
}
-void tipc_bclink_add_node(u32 addr)
+void tipc_bclink_add_node(struct net *net, u32 addr)
{
- tipc_bclink_lock();
- tipc_nmap_add(&bclink->bcast_nodes, addr);
- tipc_bclink_unlock();
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ tipc_bclink_lock(net);
+ tipc_nmap_add(&tn->bclink->bcast_nodes, addr);
+ tipc_bclink_unlock(net);
}
-void tipc_bclink_remove_node(u32 addr)
+void tipc_bclink_remove_node(struct net *net, u32 addr)
{
- tipc_bclink_lock();
- tipc_nmap_remove(&bclink->bcast_nodes, addr);
- tipc_bclink_unlock();
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ tipc_bclink_lock(net);
+ tipc_nmap_remove(&tn->bclink->bcast_nodes, addr);
+ tipc_bclink_unlock(net);
}
-static void bclink_set_last_sent(void)
+static void bclink_set_last_sent(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
+
if (bcl->next_out)
bcl->fsm_msg_cnt = mod(buf_seqno(bcl->next_out) - 1);
else
bcl->fsm_msg_cnt = mod(bcl->next_out_no - 1);
}
-u32 tipc_bclink_get_last_sent(void)
+u32 tipc_bclink_get_last_sent(struct net *net)
{
- return bcl->fsm_msg_cnt;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ return tn->bcl->fsm_msg_cnt;
}
static void bclink_update_last_sent(struct tipc_node *node, u32 seqno)
@@ -203,9 +154,11 @@ static void bclink_update_last_sent(struct tipc_node *node, u32 seqno)
*
* Called with bclink_lock locked
*/
-struct tipc_node *tipc_bclink_retransmit_to(void)
+struct tipc_node *tipc_bclink_retransmit_to(struct net *net)
{
- return bclink->retransmit_to;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ return tn->bclink->retransmit_to;
}
/**
@@ -215,15 +168,17 @@ struct tipc_node *tipc_bclink_retransmit_to(void)
*
* Called with bclink_lock locked
*/
-static void bclink_retransmit_pkt(u32 after, u32 to)
+static void bclink_retransmit_pkt(struct tipc_net *tn, u32 after, u32 to)
{
struct sk_buff *skb;
+ struct tipc_link *bcl = tn->bcl;
skb_queue_walk(&bcl->outqueue, skb) {
- if (more(buf_seqno(skb), after))
+ if (more(buf_seqno(skb), after)) {
+ tipc_link_retransmit(bcl, skb, mod(to - after));
break;
+ }
}
- tipc_link_retransmit(bcl, skb, mod(to - after));
}
/**
@@ -231,13 +186,13 @@ static void bclink_retransmit_pkt(u32 after, u32 to)
*
* Called with no locks taken
*/
-void tipc_bclink_wakeup_users(void)
+void tipc_bclink_wakeup_users(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *skb;
- while ((skb = skb_dequeue(&bclink->link.waiting_sks)))
- tipc_sk_rcv(skb);
-
+ while ((skb = skb_dequeue(&tn->bclink->link.waiting_sks)))
+ tipc_sk_rcv(net, skb);
}
/**
@@ -252,10 +207,12 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked)
struct sk_buff *skb, *tmp;
struct sk_buff *next;
unsigned int released = 0;
+ struct net *net = n_ptr->net;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
/* Bail out if tx queue is empty (no clean up is required) */
- skb = skb_peek(&bcl->outqueue);
+ skb = skb_peek(&tn->bcl->outqueue);
if (!skb)
goto exit;
@@ -266,43 +223,43 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked)
* acknowledge sent messages only (if other nodes still exist)
* or both sent and unsent messages (otherwise)
*/
- if (bclink->bcast_nodes.count)
- acked = bcl->fsm_msg_cnt;
+ if (tn->bclink->bcast_nodes.count)
+ acked = tn->bcl->fsm_msg_cnt;
else
- acked = bcl->next_out_no;
+ acked = tn->bcl->next_out_no;
} else {
/*
* Bail out if specified sequence number does not correspond
* to a message that has been sent and not yet acknowledged
*/
if (less(acked, buf_seqno(skb)) ||
- less(bcl->fsm_msg_cnt, acked) ||
+ less(tn->bcl->fsm_msg_cnt, acked) ||
less_eq(acked, n_ptr->bclink.acked))
goto exit;
}
/* Skip over packets that node has previously acknowledged */
- skb_queue_walk(&bcl->outqueue, skb) {
+ skb_queue_walk(&tn->bcl->outqueue, skb) {
if (more(buf_seqno(skb), n_ptr->bclink.acked))
break;
}
/* Update packets that node is now acknowledging */
- skb_queue_walk_from_safe(&bcl->outqueue, skb, tmp) {
+ skb_queue_walk_from_safe(&tn->bcl->outqueue, skb, tmp) {
if (more(buf_seqno(skb), acked))
break;
- next = tipc_skb_queue_next(&bcl->outqueue, skb);
- if (skb != bcl->next_out) {
+ next = tipc_skb_queue_next(&tn->bcl->outqueue, skb);
+ if (skb != tn->bcl->next_out) {
bcbuf_decr_acks(skb);
} else {
bcbuf_set_acks(skb, 0);
- bcl->next_out = next;
- bclink_set_last_sent();
+ tn->bcl->next_out = next;
+ bclink_set_last_sent(net);
}
if (bcbuf_acks(skb) == 0) {
- __skb_unlink(skb, &bcl->outqueue);
+ __skb_unlink(skb, &tn->bcl->outqueue);
kfree_skb(skb);
released = 1;
}
@@ -310,15 +267,15 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked)
n_ptr->bclink.acked = acked;
/* Try resolving broadcast link congestion, if necessary */
- if (unlikely(bcl->next_out)) {
- tipc_link_push_packets(bcl);
- bclink_set_last_sent();
+ if (unlikely(tn->bcl->next_out)) {
+ tipc_link_push_packets(tn->bcl);
+ bclink_set_last_sent(net);
}
- if (unlikely(released && !skb_queue_empty(&bcl->waiting_sks)))
+ if (unlikely(released && !skb_queue_empty(&tn->bcl->waiting_sks)))
n_ptr->action_flags |= TIPC_WAKEUP_BCAST_USERS;
exit:
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
}
/**
@@ -326,9 +283,11 @@ exit:
*
* RCU and node lock set
*/
-void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent)
+void tipc_bclink_update_link_state(struct net *net, struct tipc_node *n_ptr,
+ u32 last_sent)
{
struct sk_buff *buf;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
/* Ignore "stale" link state info */
if (less_eq(last_sent, n_ptr->bclink.last_in))
@@ -358,18 +317,18 @@ void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent)
struct sk_buff *skb = skb_peek(&n_ptr->bclink.deferred_queue);
u32 to = skb ? buf_seqno(skb) - 1 : n_ptr->bclink.last_sent;
- tipc_msg_init(msg, BCAST_PROTOCOL, STATE_MSG,
+ tipc_msg_init(net, msg, BCAST_PROTOCOL, STATE_MSG,
INT_H_SIZE, n_ptr->addr);
msg_set_non_seq(msg, 1);
- msg_set_mc_netid(msg, tipc_net_id);
+ msg_set_mc_netid(msg, tn->net_id);
msg_set_bcast_ack(msg, n_ptr->bclink.last_in);
msg_set_bcgap_after(msg, n_ptr->bclink.last_in);
msg_set_bcgap_to(msg, to);
- tipc_bclink_lock();
- tipc_bearer_send(MAX_BEARERS, buf, NULL);
- bcl->stats.sent_nacks++;
- tipc_bclink_unlock();
+ tipc_bclink_lock(net);
+ tipc_bearer_send(net, MAX_BEARERS, buf, NULL);
+ tn->bcl->stats.sent_nacks++;
+ tipc_bclink_unlock(net);
kfree_skb(buf);
n_ptr->bclink.oos_state++;
@@ -382,9 +341,9 @@ void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent)
* Delay any upcoming NACK by this node if another node has already
* requested the first message this node is going to ask for.
*/
-static void bclink_peek_nack(struct tipc_msg *msg)
+static void bclink_peek_nack(struct net *net, struct tipc_msg *msg)
{
- struct tipc_node *n_ptr = tipc_node_find(msg_destnode(msg));
+ struct tipc_node *n_ptr = tipc_node_find(net, msg_destnode(msg));
if (unlikely(!n_ptr))
return;
@@ -401,12 +360,16 @@ static void bclink_peek_nack(struct tipc_msg *msg)
/* tipc_bclink_xmit - broadcast buffer chain to all nodes in cluster
* and to identified node local sockets
+ * @net: the applicable net namespace
* @list: chain of buffers containing message
* Consumes the buffer chain, except when returning -ELINKCONG
* Returns 0 if success, otherwise errno: -ELINKCONG,-EHOSTUNREACH,-EMSGSIZE
*/
-int tipc_bclink_xmit(struct sk_buff_head *list)
+int tipc_bclink_xmit(struct net *net, struct sk_buff_head *list)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
+ struct tipc_bclink *bclink = tn->bclink;
int rc = 0;
int bc = 0;
struct sk_buff *skb;
@@ -420,19 +383,19 @@ int tipc_bclink_xmit(struct sk_buff_head *list)
/* Broadcast to all other nodes */
if (likely(bclink)) {
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
if (likely(bclink->bcast_nodes.count)) {
- rc = __tipc_link_xmit(bcl, list);
+ rc = __tipc_link_xmit(net, bcl, list);
if (likely(!rc)) {
u32 len = skb_queue_len(&bcl->outqueue);
- bclink_set_last_sent();
+ bclink_set_last_sent(net);
bcl->stats.queue_sz_counts++;
bcl->stats.accu_queue_sz += len;
}
bc = 1;
}
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
}
if (unlikely(!bc))
@@ -440,7 +403,7 @@ int tipc_bclink_xmit(struct sk_buff_head *list)
/* Deliver message clone */
if (likely(!rc))
- tipc_sk_mcast_rcv(skb);
+ tipc_sk_mcast_rcv(net, skb);
else
kfree_skb(skb);
@@ -454,19 +417,21 @@ int tipc_bclink_xmit(struct sk_buff_head *list)
*/
static void bclink_accept_pkt(struct tipc_node *node, u32 seqno)
{
+ struct tipc_net *tn = net_generic(node->net, tipc_net_id);
+
bclink_update_last_sent(node, seqno);
node->bclink.last_in = seqno;
node->bclink.oos_state = 0;
- bcl->stats.recv_info++;
+ tn->bcl->stats.recv_info++;
/*
* Unicast an ACK periodically, ensuring that
* all nodes in the cluster don't ACK at the same time
*/
- if (((seqno - tipc_own_addr) % TIPC_MIN_LINK_WIN) == 0) {
+ if (((seqno - tn->own_addr) % TIPC_MIN_LINK_WIN) == 0) {
tipc_link_proto_xmit(node->active_links[node->addr & 1],
STATE_MSG, 0, 0, 0, 0, 0);
- bcl->stats.sent_acks++;
+ tn->bcl->stats.sent_acks++;
}
}
@@ -475,8 +440,10 @@ static void bclink_accept_pkt(struct tipc_node *node, u32 seqno)
*
* RCU is locked, no other locks set
*/
-void tipc_bclink_rcv(struct sk_buff *buf)
+void tipc_bclink_rcv(struct net *net, struct sk_buff *buf)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
struct tipc_msg *msg = buf_msg(buf);
struct tipc_node *node;
u32 next_in;
@@ -484,10 +451,10 @@ void tipc_bclink_rcv(struct sk_buff *buf)
int deferred = 0;
/* Screen out unwanted broadcast messages */
- if (msg_mc_netid(msg) != tipc_net_id)
+ if (msg_mc_netid(msg) != tn->net_id)
goto exit;
- node = tipc_node_find(msg_prevnode(msg));
+ node = tipc_node_find(net, msg_prevnode(msg));
if (unlikely(!node))
goto exit;
@@ -499,18 +466,18 @@ void tipc_bclink_rcv(struct sk_buff *buf)
if (unlikely(msg_user(msg) == BCAST_PROTOCOL)) {
if (msg_type(msg) != STATE_MSG)
goto unlock;
- if (msg_destnode(msg) == tipc_own_addr) {
+ if (msg_destnode(msg) == tn->own_addr) {
tipc_bclink_acknowledge(node, msg_bcast_ack(msg));
tipc_node_unlock(node);
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
bcl->stats.recv_nacks++;
- bclink->retransmit_to = node;
- bclink_retransmit_pkt(msg_bcgap_after(msg),
+ tn->bclink->retransmit_to = node;
+ bclink_retransmit_pkt(tn, msg_bcgap_after(msg),
msg_bcgap_to(msg));
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
} else {
tipc_node_unlock(node);
- bclink_peek_nack(msg);
+ bclink_peek_nack(net, msg);
}
goto exit;
}
@@ -523,47 +490,47 @@ void tipc_bclink_rcv(struct sk_buff *buf)
receive:
/* Deliver message to destination */
if (likely(msg_isdata(msg))) {
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
bclink_accept_pkt(node, seqno);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
tipc_node_unlock(node);
if (likely(msg_mcast(msg)))
- tipc_sk_mcast_rcv(buf);
+ tipc_sk_mcast_rcv(net, buf);
else
kfree_skb(buf);
} else if (msg_user(msg) == MSG_BUNDLER) {
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
bclink_accept_pkt(node, seqno);
bcl->stats.recv_bundles++;
bcl->stats.recv_bundled += msg_msgcnt(msg);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
tipc_node_unlock(node);
- tipc_link_bundle_rcv(buf);
+ tipc_link_bundle_rcv(net, buf);
} else if (msg_user(msg) == MSG_FRAGMENTER) {
tipc_buf_append(&node->bclink.reasm_buf, &buf);
if (unlikely(!buf && !node->bclink.reasm_buf))
goto unlock;
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
bclink_accept_pkt(node, seqno);
bcl->stats.recv_fragments++;
if (buf) {
bcl->stats.recv_fragmented++;
msg = buf_msg(buf);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
goto receive;
}
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
tipc_node_unlock(node);
} else if (msg_user(msg) == NAME_DISTRIBUTOR) {
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
bclink_accept_pkt(node, seqno);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
tipc_node_unlock(node);
- tipc_named_rcv(buf);
+ tipc_named_rcv(net, buf);
} else {
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
bclink_accept_pkt(node, seqno);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
tipc_node_unlock(node);
kfree_skb(buf);
}
@@ -601,14 +568,14 @@ receive:
buf = NULL;
}
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
if (deferred)
bcl->stats.deferred_recv++;
else
bcl->stats.duplicates++;
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
unlock:
tipc_node_unlock(node);
@@ -619,7 +586,7 @@ exit:
u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr)
{
return (n_ptr->bclink.recv_permitted &&
- (tipc_bclink_get_last_sent() != n_ptr->bclink.acked));
+ (tipc_bclink_get_last_sent(n_ptr->net) != n_ptr->bclink.acked));
}
@@ -632,11 +599,15 @@ u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr)
* Returns 0 (packet sent successfully) under all circumstances,
* since the broadcast link's pseudo-bearer never blocks
*/
-static int tipc_bcbearer_send(struct sk_buff *buf, struct tipc_bearer *unused1,
+static int tipc_bcbearer_send(struct net *net, struct sk_buff *buf,
+ struct tipc_bearer *unused1,
struct tipc_media_addr *unused2)
{
int bp_index;
struct tipc_msg *msg = buf_msg(buf);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_bcbearer *bcbearer = tn->bcbearer;
+ struct tipc_bclink *bclink = tn->bclink;
/* Prepare broadcast link message for reliable transmission,
* if first time trying to send it;
@@ -646,8 +617,8 @@ static int tipc_bcbearer_send(struct sk_buff *buf, struct tipc_bearer *unused1,
if (likely(!msg_non_seq(buf_msg(buf)))) {
bcbuf_set_acks(buf, bclink->bcast_nodes.count);
msg_set_non_seq(msg, 1);
- msg_set_mc_netid(msg, tipc_net_id);
- bcl->stats.sent_info++;
+ msg_set_mc_netid(msg, tn->net_id);
+ tn->bcl->stats.sent_info++;
if (WARN_ON(!bclink->bcast_nodes.count)) {
dump_stack();
@@ -676,13 +647,14 @@ static int tipc_bcbearer_send(struct sk_buff *buf, struct tipc_bearer *unused1,
if (bp_index == 0) {
/* Use original buffer for first bearer */
- tipc_bearer_send(b->identity, buf, &b->bcast_addr);
+ tipc_bearer_send(net, b->identity, buf, &b->bcast_addr);
} else {
/* Avoid concurrent buffer access */
tbuf = pskb_copy_for_clone(buf, GFP_ATOMIC);
if (!tbuf)
break;
- tipc_bearer_send(b->identity, tbuf, &b->bcast_addr);
+ tipc_bearer_send(net, b->identity, tbuf,
+ &b->bcast_addr);
kfree_skb(tbuf); /* Bearer keeps a clone */
}
if (bcbearer->remains_new.count == 0)
@@ -697,15 +669,18 @@ static int tipc_bcbearer_send(struct sk_buff *buf, struct tipc_bearer *unused1,
/**
* tipc_bcbearer_sort - create sets of bearer pairs used by broadcast bearer
*/
-void tipc_bcbearer_sort(struct tipc_node_map *nm_ptr, u32 node, bool action)
+void tipc_bcbearer_sort(struct net *net, struct tipc_node_map *nm_ptr,
+ u32 node, bool action)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_bcbearer *bcbearer = tn->bcbearer;
struct tipc_bcbearer_pair *bp_temp = bcbearer->bpairs_temp;
struct tipc_bcbearer_pair *bp_curr;
struct tipc_bearer *b;
int b_index;
int pri;
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
if (action)
tipc_nmap_add(nm_ptr, node);
@@ -717,7 +692,7 @@ void tipc_bcbearer_sort(struct tipc_node_map *nm_ptr, u32 node, bool action)
rcu_read_lock();
for (b_index = 0; b_index < MAX_BEARERS; b_index++) {
- b = rcu_dereference_rtnl(bearer_list[b_index]);
+ b = rcu_dereference_rtnl(tn->bearer_list[b_index]);
if (!b || !b->nodes.count)
continue;
@@ -752,7 +727,7 @@ void tipc_bcbearer_sort(struct tipc_node_map *nm_ptr, u32 node, bool action)
bp_curr++;
}
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
}
static int __tipc_nl_add_bc_link_stat(struct sk_buff *skb,
@@ -806,17 +781,19 @@ msg_full:
return -EMSGSIZE;
}
-int tipc_nl_add_bc_link(struct tipc_nl_msg *msg)
+int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg)
{
int err;
void *hdr;
struct nlattr *attrs;
struct nlattr *prop;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
if (!bcl)
return 0;
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_v2_family,
NLM_F_MULTI, TIPC_NL_LINK_GET);
@@ -851,7 +828,7 @@ int tipc_nl_add_bc_link(struct tipc_nl_msg *msg)
if (err)
goto attr_msg_full;
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
nla_nest_end(msg->skb, attrs);
genlmsg_end(msg->skb, hdr);
@@ -862,21 +839,23 @@ prop_msg_full:
attr_msg_full:
nla_nest_cancel(msg->skb, attrs);
msg_full:
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
genlmsg_cancel(msg->skb, hdr);
return -EMSGSIZE;
}
-int tipc_bclink_stats(char *buf, const u32 buf_size)
+int tipc_bclink_stats(struct net *net, char *buf, const u32 buf_size)
{
int ret;
struct tipc_stats *s;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
if (!bcl)
return 0;
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
s = &bcl->stats;
@@ -905,36 +884,47 @@ int tipc_bclink_stats(char *buf, const u32 buf_size)
s->queue_sz_counts ?
(s->accu_queue_sz / s->queue_sz_counts) : 0);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
return ret;
}
-int tipc_bclink_reset_stats(void)
+int tipc_bclink_reset_stats(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
+
if (!bcl)
return -ENOPROTOOPT;
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
memset(&bcl->stats, 0, sizeof(bcl->stats));
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
return 0;
}
-int tipc_bclink_set_queue_limits(u32 limit)
+int tipc_bclink_set_queue_limits(struct net *net, u32 limit)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_link *bcl = tn->bcl;
+
if (!bcl)
return -ENOPROTOOPT;
if ((limit < TIPC_MIN_LINK_WIN) || (limit > TIPC_MAX_LINK_WIN))
return -EINVAL;
- tipc_bclink_lock();
+ tipc_bclink_lock(net);
tipc_link_set_queue_limits(bcl, limit);
- tipc_bclink_unlock();
+ tipc_bclink_unlock(net);
return 0;
}
-int tipc_bclink_init(void)
+int tipc_bclink_init(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_bcbearer *bcbearer;
+ struct tipc_bclink *bclink;
+ struct tipc_link *bcl;
+
bcbearer = kzalloc(sizeof(*bcbearer), GFP_ATOMIC);
if (!bcbearer)
return -ENOMEM;
@@ -958,25 +948,31 @@ int tipc_bclink_init(void)
spin_lock_init(&bclink->node.lock);
__skb_queue_head_init(&bclink->node.waiting_sks);
bcl->owner = &bclink->node;
+ bcl->owner->net = net;
bcl->max_pkt = MAX_PKT_DEFAULT_MCAST;
tipc_link_set_queue_limits(bcl, BCLINK_WIN_DEFAULT);
bcl->bearer_id = MAX_BEARERS;
- rcu_assign_pointer(bearer_list[MAX_BEARERS], &bcbearer->bearer);
+ rcu_assign_pointer(tn->bearer_list[MAX_BEARERS], &bcbearer->bearer);
bcl->state = WORKING_WORKING;
strlcpy(bcl->name, tipc_bclink_name, TIPC_MAX_LINK_NAME);
+ tn->bcbearer = bcbearer;
+ tn->bclink = bclink;
+ tn->bcl = bcl;
return 0;
}
-void tipc_bclink_stop(void)
+void tipc_bclink_stop(struct net *net)
{
- tipc_bclink_lock();
- tipc_link_purge_queues(bcl);
- tipc_bclink_unlock();
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ tipc_bclink_lock(net);
+ tipc_link_purge_queues(tn->bcl);
+ tipc_bclink_unlock(net);
- RCU_INIT_POINTER(bearer_list[BCBEARER], NULL);
+ RCU_INIT_POINTER(tn->bearer_list[BCBEARER], NULL);
synchronize_net();
- kfree(bcbearer);
- kfree(bclink);
+ kfree(tn->bcbearer);
+ kfree(tn->bclink);
}
/**
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index 644d79129fba..a4583a109486 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -37,23 +37,13 @@
#ifndef _TIPC_BCAST_H
#define _TIPC_BCAST_H
-#include "netlink.h"
+#include <linux/tipc_config.h>
+#include "link.h"
+#include "node.h"
-#define MAX_NODES 4096
-#define WSIZE 32
-#define TIPC_BCLINK_RESET 1
-
-/**
- * struct tipc_node_map - set of node identifiers
- * @count: # of nodes in set
- * @map: bitmap of node identifiers that are in the set
- */
-struct tipc_node_map {
- u32 count;
- u32 map[MAX_NODES / WSIZE];
-};
-
-#define PLSIZE 32
+#define TIPC_BCLINK_RESET 1
+#define PLSIZE 32
+#define BCBEARER MAX_BEARERS
/**
* struct tipc_port_list - set of node local destination ports
@@ -67,9 +57,64 @@ struct tipc_port_list {
u32 ports[PLSIZE];
};
+/**
+ * struct tipc_bcbearer_pair - a pair of bearers used by broadcast link
+ * @primary: pointer to primary bearer
+ * @secondary: pointer to secondary bearer
+ *
+ * Bearers must have same priority and same set of reachable destinations
+ * to be paired.
+ */
-struct tipc_node;
+struct tipc_bcbearer_pair {
+ struct tipc_bearer *primary;
+ struct tipc_bearer *secondary;
+};
+/**
+ * struct tipc_bcbearer - bearer used by broadcast link
+ * @bearer: (non-standard) broadcast bearer structure
+ * @media: (non-standard) broadcast media structure
+ * @bpairs: array of bearer pairs
+ * @bpairs_temp: temporary array of bearer pairs used by tipc_bcbearer_sort()
+ * @remains: temporary node map used by tipc_bcbearer_send()
+ * @remains_new: temporary node map used tipc_bcbearer_send()
+ *
+ * Note: The fields labelled "temporary" are incorporated into the bearer
+ * to avoid consuming potentially limited stack space through the use of
+ * large local variables within multicast routines. Concurrent access is
+ * prevented through use of the spinlock "bclink_lock".
+ */
+struct tipc_bcbearer {
+ struct tipc_bearer bearer;
+ struct tipc_media media;
+ struct tipc_bcbearer_pair bpairs[MAX_BEARERS];
+ struct tipc_bcbearer_pair bpairs_temp[TIPC_MAX_LINK_PRI + 1];
+ struct tipc_node_map remains;
+ struct tipc_node_map remains_new;
+};
+
+/**
+ * struct tipc_bclink - link used for broadcast messages
+ * @lock: spinlock governing access to structure
+ * @link: (non-standard) broadcast link structure
+ * @node: (non-standard) node structure representing b'cast link's peer node
+ * @flags: represent bclink states
+ * @bcast_nodes: map of broadcast-capable nodes
+ * @retransmit_to: node that most recently requested a retransmit
+ *
+ * Handles sequence numbering, fragmentation, bundling, etc.
+ */
+struct tipc_bclink {
+ spinlock_t lock;
+ struct tipc_link link;
+ struct tipc_node node;
+ unsigned int flags;
+ struct tipc_node_map bcast_nodes;
+ struct tipc_node *retransmit_to;
+};
+
+struct tipc_node;
extern const char tipc_bclink_name[];
/**
@@ -84,24 +129,26 @@ static inline int tipc_nmap_equal(struct tipc_node_map *nm_a,
void tipc_port_list_add(struct tipc_port_list *pl_ptr, u32 port);
void tipc_port_list_free(struct tipc_port_list *pl_ptr);
-int tipc_bclink_init(void);
-void tipc_bclink_stop(void);
-void tipc_bclink_set_flags(unsigned int flags);
-void tipc_bclink_add_node(u32 addr);
-void tipc_bclink_remove_node(u32 addr);
-struct tipc_node *tipc_bclink_retransmit_to(void);
+int tipc_bclink_init(struct net *net);
+void tipc_bclink_stop(struct net *net);
+void tipc_bclink_set_flags(struct net *tn, unsigned int flags);
+void tipc_bclink_add_node(struct net *net, u32 addr);
+void tipc_bclink_remove_node(struct net *net, u32 addr);
+struct tipc_node *tipc_bclink_retransmit_to(struct net *tn);
void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
-void tipc_bclink_rcv(struct sk_buff *buf);
-u32 tipc_bclink_get_last_sent(void);
+void tipc_bclink_rcv(struct net *net, struct sk_buff *buf);
+u32 tipc_bclink_get_last_sent(struct net *net);
u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr);
-void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent);
-int tipc_bclink_stats(char *stats_buf, const u32 buf_size);
-int tipc_bclink_reset_stats(void);
-int tipc_bclink_set_queue_limits(u32 limit);
-void tipc_bcbearer_sort(struct tipc_node_map *nm_ptr, u32 node, bool action);
+void tipc_bclink_update_link_state(struct net *net, struct tipc_node *n_ptr,
+ u32 last_sent);
+int tipc_bclink_stats(struct net *net, char *stats_buf, const u32 buf_size);
+int tipc_bclink_reset_stats(struct net *net);
+int tipc_bclink_set_queue_limits(struct net *net, u32 limit);
+void tipc_bcbearer_sort(struct net *net, struct tipc_node_map *nm_ptr,
+ u32 node, bool action);
uint tipc_bclink_get_mtu(void);
-int tipc_bclink_xmit(struct sk_buff_head *list);
-void tipc_bclink_wakeup_users(void);
-int tipc_nl_add_bc_link(struct tipc_nl_msg *msg);
+int tipc_bclink_xmit(struct net *net, struct sk_buff_head *list);
+void tipc_bclink_wakeup_users(struct net *net);
+int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg);
#endif
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 463db5b15b8b..33dc3486d16c 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -34,11 +34,13 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#include <net/sock.h>
#include "core.h"
#include "config.h"
#include "bearer.h"
#include "link.h"
#include "discover.h"
+#include "bcast.h"
#define MAX_ADDR_STR 60
@@ -67,9 +69,8 @@ static const struct nla_policy tipc_nl_media_policy[TIPC_NLA_MEDIA_MAX + 1] = {
[TIPC_NLA_MEDIA_PROP] = { .type = NLA_NESTED }
};
-struct tipc_bearer __rcu *bearer_list[MAX_BEARERS + 1];
-
-static void bearer_disable(struct tipc_bearer *b_ptr, bool shutting_down);
+static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr,
+ bool shutting_down);
/**
* tipc_media_find - locates specified media object by name
@@ -190,13 +191,14 @@ static int bearer_name_validate(const char *name,
/**
* tipc_bearer_find - locates bearer object with matching bearer name
*/
-struct tipc_bearer *tipc_bearer_find(const char *name)
+struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_bearer *b_ptr;
u32 i;
for (i = 0; i < MAX_BEARERS; i++) {
- b_ptr = rtnl_dereference(bearer_list[i]);
+ b_ptr = rtnl_dereference(tn->bearer_list[i]);
if (b_ptr && (!strcmp(b_ptr->name, name)))
return b_ptr;
}
@@ -206,8 +208,9 @@ struct tipc_bearer *tipc_bearer_find(const char *name)
/**
* tipc_bearer_get_names - record names of bearers in buffer
*/
-struct sk_buff *tipc_bearer_get_names(void)
+struct sk_buff *tipc_bearer_get_names(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *buf;
struct tipc_bearer *b;
int i, j;
@@ -218,7 +221,7 @@ struct sk_buff *tipc_bearer_get_names(void)
for (i = 0; media_info_array[i] != NULL; i++) {
for (j = 0; j < MAX_BEARERS; j++) {
- b = rtnl_dereference(bearer_list[j]);
+ b = rtnl_dereference(tn->bearer_list[j]);
if (!b)
continue;
if (b->media == media_info_array[i]) {
@@ -231,27 +234,29 @@ struct sk_buff *tipc_bearer_get_names(void)
return buf;
}
-void tipc_bearer_add_dest(u32 bearer_id, u32 dest)
+void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_bearer *b_ptr;
rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(bearer_list[bearer_id]);
+ b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
if (b_ptr) {
- tipc_bcbearer_sort(&b_ptr->nodes, dest, true);
+ tipc_bcbearer_sort(net, &b_ptr->nodes, dest, true);
tipc_disc_add_dest(b_ptr->link_req);
}
rcu_read_unlock();
}
-void tipc_bearer_remove_dest(u32 bearer_id, u32 dest)
+void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_bearer *b_ptr;
rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(bearer_list[bearer_id]);
+ b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
if (b_ptr) {
- tipc_bcbearer_sort(&b_ptr->nodes, dest, false);
+ tipc_bcbearer_sort(net, &b_ptr->nodes, dest, false);
tipc_disc_remove_dest(b_ptr->link_req);
}
rcu_read_unlock();
@@ -260,8 +265,10 @@ void tipc_bearer_remove_dest(u32 bearer_id, u32 dest)
/**
* tipc_enable_bearer - enable bearer with the given name
*/
-int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
+int tipc_enable_bearer(struct net *net, const char *name, u32 disc_domain,
+ u32 priority)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_bearer *b_ptr;
struct tipc_media *m_ptr;
struct tipc_bearer_names b_names;
@@ -271,7 +278,7 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
u32 i;
int res = -EINVAL;
- if (!tipc_own_addr) {
+ if (!tn->own_addr) {
pr_warn("Bearer <%s> rejected, not supported in standalone mode\n",
name);
return -ENOPROTOOPT;
@@ -281,11 +288,11 @@ int tipc_enable_bearer(const char *name, u32 disc_domain, u32 priority)
return -EINVAL;
}
if (tipc_addr_domain_valid(disc_domain) &&
- (disc_domain != tipc_own_addr)) {
- if (tipc_in_scope(disc_domain, tipc_own_addr)) {
- disc_domain = tipc_own_addr & TIPC_CLUSTER_MASK;
+ (disc_domain != tn->own_addr)) {
+ if (tipc_in_scope(disc_domain, tn->own_addr)) {
+ disc_domain = tn->own_addr & TIPC_CLUSTER_MASK;
res = 0; /* accept any node in own cluster */
- } else if (in_own_cluster_exact(disc_domain))
+ } else if (in_own_cluster_exact(net, disc_domain))
res = 0; /* accept specified node in own cluster */
}
if (res) {
@@ -313,7 +320,7 @@ restart:
bearer_id = MAX_BEARERS;
with_this_prio = 1;
for (i = MAX_BEARERS; i-- != 0; ) {
- b_ptr = rtnl_dereference(bearer_list[i]);
+ b_ptr = rtnl_dereference(tn->bearer_list[i]);
if (!b_ptr) {
bearer_id = i;
continue;
@@ -347,7 +354,7 @@ restart:
strcpy(b_ptr->name, name);
b_ptr->media = m_ptr;
- res = m_ptr->enable_media(b_ptr);
+ res = m_ptr->enable_media(net, b_ptr);
if (res) {
pr_warn("Bearer <%s> rejected, enable failure (%d)\n",
name, -res);
@@ -361,15 +368,15 @@ restart:
b_ptr->net_plane = bearer_id + 'A';
b_ptr->priority = priority;
- res = tipc_disc_create(b_ptr, &b_ptr->bcast_addr);
+ res = tipc_disc_create(net, b_ptr, &b_ptr->bcast_addr);
if (res) {
- bearer_disable(b_ptr, false);
+ bearer_disable(net, b_ptr, false);
pr_warn("Bearer <%s> rejected, discovery object creation failed\n",
name);
return -EINVAL;
}
- rcu_assign_pointer(bearer_list[bearer_id], b_ptr);
+ rcu_assign_pointer(tn->bearer_list[bearer_id], b_ptr);
pr_info("Enabled bearer <%s>, discovery domain %s, priority %u\n",
name,
@@ -380,11 +387,11 @@ restart:
/**
* tipc_reset_bearer - Reset all links established over this bearer
*/
-static int tipc_reset_bearer(struct tipc_bearer *b_ptr)
+static int tipc_reset_bearer(struct net *net, struct tipc_bearer *b_ptr)
{
pr_info("Resetting bearer <%s>\n", b_ptr->name);
- tipc_link_reset_list(b_ptr->identity);
- tipc_disc_reset(b_ptr);
+ tipc_link_reset_list(net, b_ptr->identity);
+ tipc_disc_reset(net, b_ptr);
return 0;
}
@@ -393,49 +400,51 @@ static int tipc_reset_bearer(struct tipc_bearer *b_ptr)
*
* Note: This routine assumes caller holds RTNL lock.
*/
-static void bearer_disable(struct tipc_bearer *b_ptr, bool shutting_down)
+static void bearer_disable(struct net *net, struct tipc_bearer *b_ptr,
+ bool shutting_down)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 i;
pr_info("Disabling bearer <%s>\n", b_ptr->name);
b_ptr->media->disable_media(b_ptr);
- tipc_link_delete_list(b_ptr->identity, shutting_down);
+ tipc_link_delete_list(net, b_ptr->identity, shutting_down);
if (b_ptr->link_req)
tipc_disc_delete(b_ptr->link_req);
for (i = 0; i < MAX_BEARERS; i++) {
- if (b_ptr == rtnl_dereference(bearer_list[i])) {
- RCU_INIT_POINTER(bearer_list[i], NULL);
+ if (b_ptr == rtnl_dereference(tn->bearer_list[i])) {
+ RCU_INIT_POINTER(tn->bearer_list[i], NULL);
break;
}
}
kfree_rcu(b_ptr, rcu);
}
-int tipc_disable_bearer(const char *name)
+int tipc_disable_bearer(struct net *net, const char *name)
{
struct tipc_bearer *b_ptr;
int res;
- b_ptr = tipc_bearer_find(name);
+ b_ptr = tipc_bearer_find(net, name);
if (b_ptr == NULL) {
pr_warn("Attempt to disable unknown bearer <%s>\n", name);
res = -EINVAL;
} else {
- bearer_disable(b_ptr, false);
+ bearer_disable(net, b_ptr, false);
res = 0;
}
return res;
}
-int tipc_enable_l2_media(struct tipc_bearer *b)
+int tipc_enable_l2_media(struct net *net, struct tipc_bearer *b)
{
struct net_device *dev;
char *driver_name = strchr((const char *)b->name, ':') + 1;
/* Find device with specified name */
- dev = dev_get_by_name(&init_net, driver_name);
+ dev = dev_get_by_name(net, driver_name);
if (!dev)
return -ENODEV;
@@ -474,8 +483,8 @@ void tipc_disable_l2_media(struct tipc_bearer *b)
* @b_ptr: the bearer through which the packet is to be sent
* @dest: peer destination address
*/
-int tipc_l2_send_msg(struct sk_buff *buf, struct tipc_bearer *b,
- struct tipc_media_addr *dest)
+int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
+ struct tipc_bearer *b, struct tipc_media_addr *dest)
{
struct sk_buff *clone;
struct net_device *dev;
@@ -511,15 +520,16 @@ int tipc_l2_send_msg(struct sk_buff *buf, struct tipc_bearer *b,
* The media send routine must not alter the buffer being passed in
* as it may be needed for later retransmission!
*/
-void tipc_bearer_send(u32 bearer_id, struct sk_buff *buf,
+void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf,
struct tipc_media_addr *dest)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_bearer *b_ptr;
rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(bearer_list[bearer_id]);
+ b_ptr = rcu_dereference_rtnl(tn->bearer_list[bearer_id]);
if (likely(b_ptr))
- b_ptr->media->send_msg(buf, b_ptr, dest);
+ b_ptr->media->send_msg(net, buf, b_ptr, dest);
rcu_read_unlock();
}
@@ -539,17 +549,12 @@ static int tipc_l2_rcv_msg(struct sk_buff *buf, struct net_device *dev,
{
struct tipc_bearer *b_ptr;
- if (!net_eq(dev_net(dev), &init_net)) {
- kfree_skb(buf);
- return NET_RX_DROP;
- }
-
rcu_read_lock();
b_ptr = rcu_dereference_rtnl(dev->tipc_ptr);
if (likely(b_ptr)) {
if (likely(buf->pkt_type <= PACKET_BROADCAST)) {
buf->next = NULL;
- tipc_rcv(buf, b_ptr);
+ tipc_rcv(dev_net(dev), buf, b_ptr);
rcu_read_unlock();
return NET_RX_SUCCESS;
}
@@ -572,11 +577,9 @@ static int tipc_l2_rcv_msg(struct sk_buff *buf, struct net_device *dev,
static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
void *ptr)
{
- struct tipc_bearer *b_ptr;
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-
- if (!net_eq(dev_net(dev), &init_net))
- return NOTIFY_DONE;
+ struct net *net = dev_net(dev);
+ struct tipc_bearer *b_ptr;
b_ptr = rtnl_dereference(dev->tipc_ptr);
if (!b_ptr)
@@ -590,16 +593,16 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
break;
case NETDEV_DOWN:
case NETDEV_CHANGEMTU:
- tipc_reset_bearer(b_ptr);
+ tipc_reset_bearer(net, b_ptr);
break;
case NETDEV_CHANGEADDR:
b_ptr->media->raw2addr(b_ptr, &b_ptr->addr,
(char *)dev->dev_addr);
- tipc_reset_bearer(b_ptr);
+ tipc_reset_bearer(net, b_ptr);
break;
case NETDEV_UNREGISTER:
case NETDEV_CHANGENAME:
- bearer_disable(b_ptr, false);
+ bearer_disable(dev_net(dev), b_ptr, false);
break;
}
return NOTIFY_OK;
@@ -632,16 +635,17 @@ void tipc_bearer_cleanup(void)
dev_remove_pack(&tipc_packet_type);
}
-void tipc_bearer_stop(void)
+void tipc_bearer_stop(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_bearer *b_ptr;
u32 i;
for (i = 0; i < MAX_BEARERS; i++) {
- b_ptr = rtnl_dereference(bearer_list[i]);
+ b_ptr = rtnl_dereference(tn->bearer_list[i]);
if (b_ptr) {
- bearer_disable(b_ptr, true);
- bearer_list[i] = NULL;
+ bearer_disable(net, b_ptr, true);
+ tn->bearer_list[i] = NULL;
}
}
}
@@ -698,6 +702,8 @@ int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb)
int i = cb->args[0];
struct tipc_bearer *bearer;
struct tipc_nl_msg msg;
+ struct net *net = sock_net(skb->sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
if (i == MAX_BEARERS)
return 0;
@@ -708,7 +714,7 @@ int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb)
rtnl_lock();
for (i = 0; i < MAX_BEARERS; i++) {
- bearer = rtnl_dereference(bearer_list[i]);
+ bearer = rtnl_dereference(tn->bearer_list[i]);
if (!bearer)
continue;
@@ -730,6 +736,7 @@ int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info)
struct tipc_bearer *bearer;
struct tipc_nl_msg msg;
struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
+ struct net *net = genl_info_net(info);
if (!info->attrs[TIPC_NLA_BEARER])
return -EINVAL;
@@ -753,7 +760,7 @@ int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info)
msg.seq = info->snd_seq;
rtnl_lock();
- bearer = tipc_bearer_find(name);
+ bearer = tipc_bearer_find(net, name);
if (!bearer) {
err = -EINVAL;
goto err_out;
@@ -778,6 +785,7 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
char *name;
struct tipc_bearer *bearer;
struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
+ struct net *net = genl_info_net(info);
if (!info->attrs[TIPC_NLA_BEARER])
return -EINVAL;
@@ -794,13 +802,13 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
rtnl_lock();
- bearer = tipc_bearer_find(name);
+ bearer = tipc_bearer_find(net, name);
if (!bearer) {
rtnl_unlock();
return -EINVAL;
}
- bearer_disable(bearer, false);
+ bearer_disable(net, bearer, false);
rtnl_unlock();
return 0;
@@ -808,6 +816,8 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
{
+ struct net *net = genl_info_net(info);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
int err;
char *bearer;
struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
@@ -815,7 +825,7 @@ int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
u32 prio;
prio = TIPC_MEDIA_LINK_PRI;
- domain = tipc_own_addr & TIPC_CLUSTER_MASK;
+ domain = tn->own_addr & TIPC_CLUSTER_MASK;
if (!info->attrs[TIPC_NLA_BEARER])
return -EINVAL;
@@ -847,7 +857,7 @@ int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
}
rtnl_lock();
- err = tipc_enable_bearer(bearer, domain, prio);
+ err = tipc_enable_bearer(net, bearer, domain, prio);
if (err) {
rtnl_unlock();
return err;
@@ -863,6 +873,7 @@ int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
char *name;
struct tipc_bearer *b;
struct nlattr *attrs[TIPC_NLA_BEARER_MAX + 1];
+ struct net *net = genl_info_net(info);
if (!info->attrs[TIPC_NLA_BEARER])
return -EINVAL;
@@ -878,7 +889,7 @@ int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info)
name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
rtnl_lock();
- b = tipc_bearer_find(name);
+ b = tipc_bearer_find(net, name);
if (!b) {
rtnl_unlock();
return -EINVAL;
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 2c1230ac5dfe..c035e3e24764 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -37,12 +37,13 @@
#ifndef _TIPC_BEARER_H
#define _TIPC_BEARER_H
-#include "bcast.h"
#include "netlink.h"
#include <net/genetlink.h>
#define MAX_BEARERS 2
#define MAX_MEDIA 2
+#define MAX_NODES 4096
+#define WSIZE 32
/* Identifiers associated with TIPC message header media address info
* - address info field is 32 bytes long
@@ -59,6 +60,16 @@
#define TIPC_MEDIA_TYPE_IB 2
/**
+ * struct tipc_node_map - set of node identifiers
+ * @count: # of nodes in set
+ * @map: bitmap of node identifiers that are in the set
+ */
+struct tipc_node_map {
+ u32 count;
+ u32 map[MAX_NODES / WSIZE];
+};
+
+/**
* struct tipc_media_addr - destination address used by TIPC bearers
* @value: address info (format defined by media)
* @media_id: TIPC media type identifier
@@ -89,10 +100,10 @@ struct tipc_bearer;
* @name: media name
*/
struct tipc_media {
- int (*send_msg)(struct sk_buff *buf,
+ int (*send_msg)(struct net *net, struct sk_buff *buf,
struct tipc_bearer *b_ptr,
struct tipc_media_addr *dest);
- int (*enable_media)(struct tipc_bearer *b_ptr);
+ int (*enable_media)(struct net *net, struct tipc_bearer *b_ptr);
void (*disable_media)(struct tipc_bearer *b_ptr);
int (*addr2str)(struct tipc_media_addr *addr,
char *strbuf,
@@ -157,17 +168,14 @@ struct tipc_bearer_names {
char if_name[TIPC_MAX_IF_NAME];
};
-struct tipc_link;
-
-extern struct tipc_bearer __rcu *bearer_list[];
-
/*
* TIPC routines available to supported media types
*/
-void tipc_rcv(struct sk_buff *skb, struct tipc_bearer *tb_ptr);
-int tipc_enable_bearer(const char *bearer_name, u32 disc_domain, u32 priority);
-int tipc_disable_bearer(const char *name);
+void tipc_rcv(struct net *net, struct sk_buff *skb, struct tipc_bearer *b_ptr);
+int tipc_enable_bearer(struct net *net, const char *bearer_name,
+ u32 disc_domain, u32 priority);
+int tipc_disable_bearer(struct net *net, const char *name);
/*
* Routines made available to TIPC by supported media types
@@ -192,20 +200,20 @@ int tipc_media_set_priority(const char *name, u32 new_value);
int tipc_media_set_window(const char *name, u32 new_value);
void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a);
struct sk_buff *tipc_media_get_names(void);
-int tipc_enable_l2_media(struct tipc_bearer *b);
+int tipc_enable_l2_media(struct net *net, struct tipc_bearer *b);
void tipc_disable_l2_media(struct tipc_bearer *b);
-int tipc_l2_send_msg(struct sk_buff *buf, struct tipc_bearer *b,
- struct tipc_media_addr *dest);
+int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
+ struct tipc_bearer *b, struct tipc_media_addr *dest);
-struct sk_buff *tipc_bearer_get_names(void);
-void tipc_bearer_add_dest(u32 bearer_id, u32 dest);
-void tipc_bearer_remove_dest(u32 bearer_id, u32 dest);
-struct tipc_bearer *tipc_bearer_find(const char *name);
+struct sk_buff *tipc_bearer_get_names(struct net *net);
+void tipc_bearer_add_dest(struct net *net, u32 bearer_id, u32 dest);
+void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest);
+struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name);
struct tipc_media *tipc_media_find(const char *name);
int tipc_bearer_setup(void);
void tipc_bearer_cleanup(void);
-void tipc_bearer_stop(void);
-void tipc_bearer_send(u32 bearer_id, struct sk_buff *buf,
+void tipc_bearer_stop(struct net *net);
+void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf,
struct tipc_media_addr *dest);
#endif /* _TIPC_BEARER_H */
diff --git a/net/tipc/config.c b/net/tipc/config.c
index 0b3a90ecab6d..6873360cda53 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -134,7 +134,7 @@ static struct sk_buff *tipc_show_stats(void)
return buf;
}
-static struct sk_buff *cfg_enable_bearer(void)
+static struct sk_buff *cfg_enable_bearer(struct net *net)
{
struct tipc_bearer_config *args;
@@ -142,7 +142,7 @@ static struct sk_buff *cfg_enable_bearer(void)
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
args = (struct tipc_bearer_config *)TLV_DATA(req_tlv_area);
- if (tipc_enable_bearer(args->name,
+ if (tipc_enable_bearer(net, args->name,
ntohl(args->disc_domain),
ntohl(args->priority)))
return tipc_cfg_reply_error_string("unable to enable bearer");
@@ -150,62 +150,66 @@ static struct sk_buff *cfg_enable_bearer(void)
return tipc_cfg_reply_none();
}
-static struct sk_buff *cfg_disable_bearer(void)
+static struct sk_buff *cfg_disable_bearer(struct net *net)
{
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_NAME))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
- if (tipc_disable_bearer((char *)TLV_DATA(req_tlv_area)))
+ if (tipc_disable_bearer(net, (char *)TLV_DATA(req_tlv_area)))
return tipc_cfg_reply_error_string("unable to disable bearer");
return tipc_cfg_reply_none();
}
-static struct sk_buff *cfg_set_own_addr(void)
+static struct sk_buff *cfg_set_own_addr(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 addr;
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
addr = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
- if (addr == tipc_own_addr)
+ if (addr == tn->own_addr)
return tipc_cfg_reply_none();
if (!tipc_addr_node_valid(addr))
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (node address)");
- if (tipc_own_addr)
+ if (tn->own_addr)
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change node address once assigned)");
- if (!tipc_net_start(addr))
+ if (!tipc_net_start(net, addr))
return tipc_cfg_reply_none();
return tipc_cfg_reply_error_string("cannot change to network mode");
}
-static struct sk_buff *cfg_set_netid(void)
+static struct sk_buff *cfg_set_netid(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 value;
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
- if (value == tipc_net_id)
+ if (value == tn->net_id)
return tipc_cfg_reply_none();
if (value < 1 || value > 9999)
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (network id must be 1-9999)");
- if (tipc_own_addr)
+ if (tn->own_addr)
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change network id once TIPC has joined a network)");
- tipc_net_id = value;
+ tn->net_id = value;
return tipc_cfg_reply_none();
}
-struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area,
- int request_space, int reply_headroom)
+struct sk_buff *tipc_cfg_do_cmd(struct net *net, u32 orig_node, u16 cmd,
+ const void *request_area, int request_space,
+ int reply_headroom)
{
struct sk_buff *rep_tlv_buf;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
rtnl_lock();
@@ -215,7 +219,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
rep_headroom = reply_headroom;
/* Check command authorization */
- if (likely(in_own_node(orig_node))) {
+ if (likely(in_own_node(net, orig_node))) {
/* command is permitted */
} else {
rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
@@ -229,28 +233,33 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
rep_tlv_buf = tipc_cfg_reply_none();
break;
case TIPC_CMD_GET_NODES:
- rep_tlv_buf = tipc_node_get_nodes(req_tlv_area, req_tlv_space);
+ rep_tlv_buf = tipc_node_get_nodes(net, req_tlv_area,
+ req_tlv_space);
break;
case TIPC_CMD_GET_LINKS:
- rep_tlv_buf = tipc_node_get_links(req_tlv_area, req_tlv_space);
+ rep_tlv_buf = tipc_node_get_links(net, req_tlv_area,
+ req_tlv_space);
break;
case TIPC_CMD_SHOW_LINK_STATS:
- rep_tlv_buf = tipc_link_cmd_show_stats(req_tlv_area, req_tlv_space);
+ rep_tlv_buf = tipc_link_cmd_show_stats(net, req_tlv_area,
+ req_tlv_space);
break;
case TIPC_CMD_RESET_LINK_STATS:
- rep_tlv_buf = tipc_link_cmd_reset_stats(req_tlv_area, req_tlv_space);
+ rep_tlv_buf = tipc_link_cmd_reset_stats(net, req_tlv_area,
+ req_tlv_space);
break;
case TIPC_CMD_SHOW_NAME_TABLE:
- rep_tlv_buf = tipc_nametbl_get(req_tlv_area, req_tlv_space);
+ rep_tlv_buf = tipc_nametbl_get(net, req_tlv_area,
+ req_tlv_space);
break;
case TIPC_CMD_GET_BEARER_NAMES:
- rep_tlv_buf = tipc_bearer_get_names();
+ rep_tlv_buf = tipc_bearer_get_names(net);
break;
case TIPC_CMD_GET_MEDIA_NAMES:
rep_tlv_buf = tipc_media_get_names();
break;
case TIPC_CMD_SHOW_PORTS:
- rep_tlv_buf = tipc_sk_socks_show();
+ rep_tlv_buf = tipc_sk_socks_show(net);
break;
case TIPC_CMD_SHOW_STATS:
rep_tlv_buf = tipc_show_stats();
@@ -258,22 +267,23 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
case TIPC_CMD_SET_LINK_TOL:
case TIPC_CMD_SET_LINK_PRI:
case TIPC_CMD_SET_LINK_WINDOW:
- rep_tlv_buf = tipc_link_cmd_config(req_tlv_area, req_tlv_space, cmd);
+ rep_tlv_buf = tipc_link_cmd_config(net, req_tlv_area,
+ req_tlv_space, cmd);
break;
case TIPC_CMD_ENABLE_BEARER:
- rep_tlv_buf = cfg_enable_bearer();
+ rep_tlv_buf = cfg_enable_bearer(net);
break;
case TIPC_CMD_DISABLE_BEARER:
- rep_tlv_buf = cfg_disable_bearer();
+ rep_tlv_buf = cfg_disable_bearer(net);
break;
case TIPC_CMD_SET_NODE_ADDR:
- rep_tlv_buf = cfg_set_own_addr();
+ rep_tlv_buf = cfg_set_own_addr(net);
break;
case TIPC_CMD_SET_NETID:
- rep_tlv_buf = cfg_set_netid();
+ rep_tlv_buf = cfg_set_netid(net);
break;
case TIPC_CMD_GET_NETID:
- rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_net_id);
+ rep_tlv_buf = tipc_cfg_reply_unsigned(tn->net_id);
break;
case TIPC_CMD_NOT_NET_ADMIN:
rep_tlv_buf =
diff --git a/net/tipc/config.h b/net/tipc/config.h
index 47b1bf181612..9e9b575fc429 100644
--- a/net/tipc/config.h
+++ b/net/tipc/config.h
@@ -37,10 +37,10 @@
#ifndef _TIPC_CONFIG_H
#define _TIPC_CONFIG_H
-/* ---------------------------------------------------------------------- */
-
#include "link.h"
+#define ULTRA_STRING_MAX_LEN 32768
+
struct sk_buff *tipc_cfg_reply_alloc(int payload_size);
int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type,
void *tlv_data, int tlv_data_size);
@@ -61,7 +61,7 @@ static inline struct sk_buff *tipc_cfg_reply_ultra_string(char *string)
return tipc_cfg_reply_string_type(TIPC_TLV_ULTRA_STRING, string);
}
-struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd,
+struct sk_buff *tipc_cfg_do_cmd(struct net *net, u32 orig_node, u16 cmd,
const void *req_tlv_area, int req_tlv_space,
int headroom);
#endif
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 71b2ada0f5ab..674bd2698528 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -44,68 +44,68 @@
#include <linux/module.h>
-/* global variables used by multiple sub-systems within TIPC */
-int tipc_random __read_mostly;
-
/* configurable TIPC parameters */
-u32 tipc_own_addr __read_mostly;
int tipc_net_id __read_mostly;
int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */
-/**
- * tipc_buf_acquire - creates a TIPC message buffer
- * @size: message size (including TIPC header)
- *
- * Returns a new buffer with data pointers set to the specified size.
- *
- * NOTE: Headroom is reserved to allow prepending of a data link header.
- * There may also be unrequested tailroom present at the buffer's end.
- */
-struct sk_buff *tipc_buf_acquire(u32 size)
+static int __net_init tipc_init_net(struct net *net)
{
- struct sk_buff *skb;
- unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;
-
- skb = alloc_skb_fclone(buf_size, GFP_ATOMIC);
- if (skb) {
- skb_reserve(skb, BUF_HEADROOM);
- skb_put(skb, size);
- skb->next = NULL;
- }
- return skb;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ int err;
+
+ tn->net_id = 4711;
+ tn->own_addr = 0;
+ get_random_bytes(&tn->random, sizeof(int));
+ INIT_LIST_HEAD(&tn->node_list);
+ spin_lock_init(&tn->node_list_lock);
+
+ err = tipc_sk_rht_init(net);
+ if (err)
+ goto out_sk_rht;
+
+ err = tipc_nametbl_init(net);
+ if (err)
+ goto out_nametbl;
+
+ err = tipc_subscr_start(net);
+ if (err)
+ goto out_subscr;
+ return 0;
+
+out_subscr:
+ tipc_nametbl_stop(net);
+out_nametbl:
+ tipc_sk_rht_destroy(net);
+out_sk_rht:
+ return err;
}
-/**
- * tipc_core_stop - switch TIPC from SINGLE NODE to NOT RUNNING mode
- */
-static void tipc_core_stop(void)
+static void __net_exit tipc_exit_net(struct net *net)
{
- tipc_net_stop();
- tipc_bearer_cleanup();
- tipc_netlink_stop();
- tipc_subscr_stop();
- tipc_nametbl_stop();
- tipc_socket_stop();
- tipc_unregister_sysctl();
- tipc_sk_rht_destroy();
+ tipc_subscr_stop(net);
+ tipc_net_stop(net);
+ tipc_nametbl_stop(net);
+ tipc_sk_rht_destroy(net);
}
-/**
- * tipc_core_start - switch TIPC from NOT RUNNING to SINGLE NODE mode
- */
-static int tipc_core_start(void)
+static struct pernet_operations tipc_net_ops = {
+ .init = tipc_init_net,
+ .exit = tipc_exit_net,
+ .id = &tipc_net_id,
+ .size = sizeof(struct tipc_net),
+};
+
+static int __init tipc_init(void)
{
int err;
- get_random_bytes(&tipc_random, sizeof(tipc_random));
-
- err = tipc_sk_rht_init();
- if (err)
- goto out_reftbl;
+ pr_info("Activated (version " TIPC_MOD_VER ")\n");
- err = tipc_nametbl_init();
- if (err)
- goto out_nametbl;
+ sysctl_tipc_rmem[0] = TIPC_CONN_OVERLOAD_LIMIT >> 4 <<
+ TIPC_LOW_IMPORTANCE;
+ sysctl_tipc_rmem[1] = TIPC_CONN_OVERLOAD_LIMIT >> 4 <<
+ TIPC_CRITICAL_IMPORTANCE;
+ sysctl_tipc_rmem[2] = TIPC_CONN_OVERLOAD_LIMIT;
err = tipc_netlink_start();
if (err)
@@ -119,57 +119,37 @@ static int tipc_core_start(void)
if (err)
goto out_sysctl;
- err = tipc_subscr_start();
+ err = register_pernet_subsys(&tipc_net_ops);
if (err)
- goto out_subscr;
+ goto out_pernet;
err = tipc_bearer_setup();
if (err)
goto out_bearer;
+ pr_info("Started in single node mode\n");
return 0;
out_bearer:
- tipc_subscr_stop();
-out_subscr:
+ unregister_pernet_subsys(&tipc_net_ops);
+out_pernet:
tipc_unregister_sysctl();
out_sysctl:
tipc_socket_stop();
out_socket:
tipc_netlink_stop();
out_netlink:
- tipc_nametbl_stop();
-out_nametbl:
- tipc_sk_rht_destroy();
-out_reftbl:
+ pr_err("Unable to start in single node mode\n");
return err;
}
-static int __init tipc_init(void)
-{
- int res;
-
- pr_info("Activated (version " TIPC_MOD_VER ")\n");
-
- tipc_own_addr = 0;
- tipc_net_id = 4711;
-
- sysctl_tipc_rmem[0] = TIPC_CONN_OVERLOAD_LIMIT >> 4 <<
- TIPC_LOW_IMPORTANCE;
- sysctl_tipc_rmem[1] = TIPC_CONN_OVERLOAD_LIMIT >> 4 <<
- TIPC_CRITICAL_IMPORTANCE;
- sysctl_tipc_rmem[2] = TIPC_CONN_OVERLOAD_LIMIT;
-
- res = tipc_core_start();
- if (res)
- pr_err("Unable to start in single node mode\n");
- else
- pr_info("Started in single node mode\n");
- return res;
-}
-
static void __exit tipc_exit(void)
{
- tipc_core_stop();
+ tipc_bearer_cleanup();
+ tipc_netlink_stop();
+ tipc_socket_stop();
+ tipc_unregister_sysctl();
+ unregister_pernet_subsys(&tipc_net_ops);
+
pr_info("Deactivated\n");
}
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 56fe4229fc5e..817b2e9d4227 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -57,46 +57,56 @@
#include <linux/vmalloc.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
+#include <net/netns/generic.h>
+#include <linux/rhashtable.h>
-#define TIPC_MOD_VER "2.0.0"
-
-#define ULTRA_STRING_MAX_LEN 32768
-#define TIPC_MAX_SUBSCRIPTIONS 65535
-#define TIPC_MAX_PUBLICATIONS 65535
+#include "node.h"
+#include "bearer.h"
+#include "bcast.h"
+#include "netlink.h"
+#include "link.h"
+#include "node.h"
+#include "msg.h"
-struct tipc_msg; /* msg.h */
+#define TIPC_MOD_VER "2.0.0"
int tipc_snprintf(char *buf, int len, const char *fmt, ...);
-/*
- * TIPC-specific error codes
- */
-#define ELINKCONG EAGAIN /* link congestion <=> resource unavailable */
-
-/*
- * Global configuration variables
- */
-extern u32 tipc_own_addr __read_mostly;
extern int tipc_net_id __read_mostly;
extern int sysctl_tipc_rmem[3] __read_mostly;
extern int sysctl_tipc_named_timeout __read_mostly;
-/*
- * Other global variables
- */
-extern int tipc_random __read_mostly;
+struct tipc_net {
+ u32 own_addr;
+ int net_id;
+ int random;
-/*
- * Routines available to privileged subsystems
- */
-int tipc_netlink_start(void);
-void tipc_netlink_stop(void);
-int tipc_socket_init(void);
-void tipc_socket_stop(void);
-int tipc_sock_create_local(int type, struct socket **res);
-void tipc_sock_release_local(struct socket *sock);
-int tipc_sock_accept_local(struct socket *sock, struct socket **newsock,
- int flags);
+ /* Node table and node list */
+ spinlock_t node_list_lock;
+ struct hlist_head node_htable[NODE_HTABLE_SIZE];
+ struct list_head node_list;
+ u32 num_nodes;
+ u32 num_links;
+
+ /* Bearer list */
+ struct tipc_bearer __rcu *bearer_list[MAX_BEARERS + 1];
+
+ /* Broadcast link */
+ struct tipc_bcbearer *bcbearer;
+ struct tipc_bclink *bclink;
+ struct tipc_link *bcl;
+
+ /* Socket hash table */
+ struct rhashtable sk_rht;
+
+ /* Name table */
+ spinlock_t nametbl_lock;
+ struct name_table *nametbl;
+
+ /* Topology subscription server */
+ struct tipc_server *topsrv;
+ atomic_t subscription_count;
+};
#ifdef CONFIG_SYSCTL
int tipc_register_sysctl(void);
@@ -106,101 +116,4 @@ void tipc_unregister_sysctl(void);
#define tipc_unregister_sysctl()
#endif
-/*
- * TIPC timer code
- */
-typedef void (*Handler) (unsigned long);
-
-/**
- * k_init_timer - initialize a timer
- * @timer: pointer to timer structure
- * @routine: pointer to routine to invoke when timer expires
- * @argument: value to pass to routine when timer expires
- *
- * Timer must be initialized before use (and terminated when no longer needed).
- */
-static inline void k_init_timer(struct timer_list *timer, Handler routine,
- unsigned long argument)
-{
- setup_timer(timer, routine, argument);
-}
-
-/**
- * k_start_timer - start a timer
- * @timer: pointer to timer structure
- * @msec: time to delay (in ms)
- *
- * Schedules a previously initialized timer for later execution.
- * If timer is already running, the new timeout overrides the previous request.
- *
- * To ensure the timer doesn't expire before the specified delay elapses,
- * the amount of delay is rounded up when converting to the jiffies
- * then an additional jiffy is added to account for the fact that
- * the starting time may be in the middle of the current jiffy.
- */
-static inline void k_start_timer(struct timer_list *timer, unsigned long msec)
-{
- mod_timer(timer, jiffies + msecs_to_jiffies(msec) + 1);
-}
-
-/**
- * k_cancel_timer - cancel a timer
- * @timer: pointer to timer structure
- *
- * Cancels a previously initialized timer.
- * Can be called safely even if the timer is already inactive.
- *
- * WARNING: Must not be called when holding locks required by the timer's
- * timeout routine, otherwise deadlock can occur on SMP systems!
- */
-static inline void k_cancel_timer(struct timer_list *timer)
-{
- del_timer_sync(timer);
-}
-
-/**
- * k_term_timer - terminate a timer
- * @timer: pointer to timer structure
- *
- * Prevents further use of a previously initialized timer.
- *
- * WARNING: Caller must ensure timer isn't currently running.
- *
- * (Do not "enhance" this routine to automatically cancel an active timer,
- * otherwise deadlock can arise when a timeout routine calls k_term_timer.)
- */
-static inline void k_term_timer(struct timer_list *timer)
-{
-}
-
-/*
- * TIPC message buffer code
- *
- * TIPC message buffer headroom reserves space for the worst-case
- * link-level device header (in case the message is sent off-node).
- *
- * Note: Headroom should be a multiple of 4 to ensure the TIPC header fields
- * are word aligned for quicker access
- */
-#define BUF_HEADROOM LL_MAX_HEADER
-
-struct tipc_skb_cb {
- void *handle;
- struct sk_buff *tail;
- bool deferred;
- bool wakeup_pending;
- bool bundling;
- u16 chain_sz;
- u16 chain_imp;
-};
-
-#define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0]))
-
-static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
-{
- return (struct tipc_msg *)skb->data;
-}
-
-struct sk_buff *tipc_buf_acquire(u32 size);
-
#endif
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index aa722a42ef8b..5b40cb89ff0a 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -38,15 +38,20 @@
#include "link.h"
#include "discover.h"
-#define TIPC_LINK_REQ_INIT 125 /* min delay during bearer start up */
-#define TIPC_LINK_REQ_FAST 1000 /* max delay if bearer has no links */
-#define TIPC_LINK_REQ_SLOW 60000 /* max delay if bearer has links */
-#define TIPC_LINK_REQ_INACTIVE 0xffffffff /* indicates no timer in use */
+/* min delay during bearer start up */
+#define TIPC_LINK_REQ_INIT msecs_to_jiffies(125)
+/* max delay if bearer has no links */
+#define TIPC_LINK_REQ_FAST msecs_to_jiffies(1000)
+/* max delay if bearer has links */
+#define TIPC_LINK_REQ_SLOW msecs_to_jiffies(60000)
+/* indicates no timer in use */
+#define TIPC_LINK_REQ_INACTIVE 0xffffffff
/**
* struct tipc_link_req - information about an ongoing link setup request
* @bearer_id: identity of bearer issuing requests
+ * @net: network namespace instance
* @dest: destination address for request messages
* @domain: network domain to which links can be established
* @num_nodes: number of nodes currently discovered (i.e. with an active link)
@@ -58,31 +63,34 @@
struct tipc_link_req {
u32 bearer_id;
struct tipc_media_addr dest;
+ struct net *net;
u32 domain;
int num_nodes;
spinlock_t lock;
struct sk_buff *buf;
struct timer_list timer;
- unsigned int timer_intv;
+ unsigned long timer_intv;
};
/**
* tipc_disc_init_msg - initialize a link setup message
+ * @net: the applicable net namespace
* @type: message type (request or response)
* @b_ptr: ptr to bearer issuing message
*/
-static void tipc_disc_init_msg(struct sk_buff *buf, u32 type,
+static void tipc_disc_init_msg(struct net *net, struct sk_buff *buf, u32 type,
struct tipc_bearer *b_ptr)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_msg *msg;
u32 dest_domain = b_ptr->domain;
msg = buf_msg(buf);
- tipc_msg_init(msg, LINK_CONFIG, type, INT_H_SIZE, dest_domain);
+ tipc_msg_init(net, msg, LINK_CONFIG, type, INT_H_SIZE, dest_domain);
msg_set_non_seq(msg, 1);
- msg_set_node_sig(msg, tipc_random);
+ msg_set_node_sig(msg, tn->random);
msg_set_dest_domain(msg, dest_domain);
- msg_set_bc_netid(msg, tipc_net_id);
+ msg_set_bc_netid(msg, tn->net_id);
b_ptr->media->addr2msg(msg_media_addr(msg), &b_ptr->addr);
}
@@ -107,11 +115,14 @@ static void disc_dupl_alert(struct tipc_bearer *b_ptr, u32 node_addr,
/**
* tipc_disc_rcv - handle incoming discovery message (request or response)
+ * @net: the applicable net namespace
* @buf: buffer containing message
* @bearer: bearer that message arrived on
*/
-void tipc_disc_rcv(struct sk_buff *buf, struct tipc_bearer *bearer)
+void tipc_disc_rcv(struct net *net, struct sk_buff *buf,
+ struct tipc_bearer *bearer)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_node *node;
struct tipc_link *link;
struct tipc_media_addr maddr;
@@ -133,7 +144,7 @@ void tipc_disc_rcv(struct sk_buff *buf, struct tipc_bearer *bearer)
kfree_skb(buf);
/* Ensure message from node is valid and communication is permitted */
- if (net_id != tipc_net_id)
+ if (net_id != tn->net_id)
return;
if (maddr.broadcast)
return;
@@ -142,20 +153,20 @@ void tipc_disc_rcv(struct sk_buff *buf, struct tipc_bearer *bearer)
if (!tipc_addr_node_valid(onode))
return;
- if (in_own_node(onode)) {
+ if (in_own_node(net, onode)) {
if (memcmp(&maddr, &bearer->addr, sizeof(maddr)))
- disc_dupl_alert(bearer, tipc_own_addr, &maddr);
+ disc_dupl_alert(bearer, tn->own_addr, &maddr);
return;
}
- if (!tipc_in_scope(ddom, tipc_own_addr))
+ if (!tipc_in_scope(ddom, tn->own_addr))
return;
if (!tipc_in_scope(bearer->domain, onode))
return;
/* Locate, or if necessary, create, node: */
- node = tipc_node_find(onode);
+ node = tipc_node_find(net, onode);
if (!node)
- node = tipc_node_create(onode);
+ node = tipc_node_create(net, onode);
if (!node)
return;
@@ -244,8 +255,8 @@ void tipc_disc_rcv(struct sk_buff *buf, struct tipc_bearer *bearer)
if (respond && (mtyp == DSC_REQ_MSG)) {
rbuf = tipc_buf_acquire(INT_H_SIZE);
if (rbuf) {
- tipc_disc_init_msg(rbuf, DSC_RESP_MSG, bearer);
- tipc_bearer_send(bearer->identity, rbuf, &maddr);
+ tipc_disc_init_msg(net, rbuf, DSC_RESP_MSG, bearer);
+ tipc_bearer_send(net, bearer->identity, rbuf, &maddr);
kfree_skb(rbuf);
}
}
@@ -265,7 +276,7 @@ static void disc_update(struct tipc_link_req *req)
if ((req->timer_intv == TIPC_LINK_REQ_INACTIVE) ||
(req->timer_intv > TIPC_LINK_REQ_FAST)) {
req->timer_intv = TIPC_LINK_REQ_INIT;
- k_start_timer(&req->timer, req->timer_intv);
+ mod_timer(&req->timer, jiffies + req->timer_intv);
}
}
}
@@ -295,12 +306,13 @@ void tipc_disc_remove_dest(struct tipc_link_req *req)
/**
* disc_timeout - send a periodic link setup request
- * @req: ptr to link request structure
+ * @data: ptr to link request structure
*
* Called whenever a link setup request timer associated with a bearer expires.
*/
-static void disc_timeout(struct tipc_link_req *req)
+static void disc_timeout(unsigned long data)
{
+ struct tipc_link_req *req = (struct tipc_link_req *)data;
int max_delay;
spin_lock_bh(&req->lock);
@@ -318,7 +330,7 @@ static void disc_timeout(struct tipc_link_req *req)
* hold at fast polling rate if don't have any associated nodes,
* otherwise hold at slow polling rate
*/
- tipc_bearer_send(req->bearer_id, req->buf, &req->dest);
+ tipc_bearer_send(req->net, req->bearer_id, req->buf, &req->dest);
req->timer_intv *= 2;
@@ -329,20 +341,22 @@ static void disc_timeout(struct tipc_link_req *req)
if (req->timer_intv > max_delay)
req->timer_intv = max_delay;
- k_start_timer(&req->timer, req->timer_intv);
+ mod_timer(&req->timer, jiffies + req->timer_intv);
exit:
spin_unlock_bh(&req->lock);
}
/**
* tipc_disc_create - create object to send periodic link setup requests
+ * @net: the applicable net namespace
* @b_ptr: ptr to bearer issuing requests
* @dest: destination address for request messages
* @dest_domain: network domain to which links can be established
*
* Returns 0 if successful, otherwise -errno.
*/
-int tipc_disc_create(struct tipc_bearer *b_ptr, struct tipc_media_addr *dest)
+int tipc_disc_create(struct net *net, struct tipc_bearer *b_ptr,
+ struct tipc_media_addr *dest)
{
struct tipc_link_req *req;
@@ -356,17 +370,18 @@ int tipc_disc_create(struct tipc_bearer *b_ptr, struct tipc_media_addr *dest)
return -ENOMEM;
}
- tipc_disc_init_msg(req->buf, DSC_REQ_MSG, b_ptr);
+ tipc_disc_init_msg(net, req->buf, DSC_REQ_MSG, b_ptr);
memcpy(&req->dest, dest, sizeof(*dest));
+ req->net = net;
req->bearer_id = b_ptr->identity;
req->domain = b_ptr->domain;
req->num_nodes = 0;
req->timer_intv = TIPC_LINK_REQ_INIT;
spin_lock_init(&req->lock);
- k_init_timer(&req->timer, (Handler)disc_timeout, (unsigned long)req);
- k_start_timer(&req->timer, req->timer_intv);
+ setup_timer(&req->timer, disc_timeout, (unsigned long)req);
+ mod_timer(&req->timer, jiffies + req->timer_intv);
b_ptr->link_req = req;
- tipc_bearer_send(req->bearer_id, req->buf, &req->dest);
+ tipc_bearer_send(net, req->bearer_id, req->buf, &req->dest);
return 0;
}
@@ -376,28 +391,29 @@ int tipc_disc_create(struct tipc_bearer *b_ptr, struct tipc_media_addr *dest)
*/
void tipc_disc_delete(struct tipc_link_req *req)
{
- k_cancel_timer(&req->timer);
- k_term_timer(&req->timer);
+ del_timer_sync(&req->timer);
kfree_skb(req->buf);
kfree(req);
}
/**
* tipc_disc_reset - reset object to send periodic link setup requests
+ * @net: the applicable net namespace
* @b_ptr: ptr to bearer issuing requests
* @dest_domain: network domain to which links can be established
*/
-void tipc_disc_reset(struct tipc_bearer *b_ptr)
+void tipc_disc_reset(struct net *net, struct tipc_bearer *b_ptr)
{
struct tipc_link_req *req = b_ptr->link_req;
spin_lock_bh(&req->lock);
- tipc_disc_init_msg(req->buf, DSC_REQ_MSG, b_ptr);
+ tipc_disc_init_msg(net, req->buf, DSC_REQ_MSG, b_ptr);
+ req->net = net;
req->bearer_id = b_ptr->identity;
req->domain = b_ptr->domain;
req->num_nodes = 0;
req->timer_intv = TIPC_LINK_REQ_INIT;
- k_start_timer(&req->timer, req->timer_intv);
- tipc_bearer_send(req->bearer_id, req->buf, &req->dest);
+ mod_timer(&req->timer, jiffies + req->timer_intv);
+ tipc_bearer_send(net, req->bearer_id, req->buf, &req->dest);
spin_unlock_bh(&req->lock);
}
diff --git a/net/tipc/discover.h b/net/tipc/discover.h
index 515b57392f4d..c9b12770c5ed 100644
--- a/net/tipc/discover.h
+++ b/net/tipc/discover.h
@@ -39,11 +39,13 @@
struct tipc_link_req;
-int tipc_disc_create(struct tipc_bearer *b_ptr, struct tipc_media_addr *dest);
+int tipc_disc_create(struct net *net, struct tipc_bearer *b_ptr,
+ struct tipc_media_addr *dest);
void tipc_disc_delete(struct tipc_link_req *req);
-void tipc_disc_reset(struct tipc_bearer *b_ptr);
+void tipc_disc_reset(struct net *net, struct tipc_bearer *b_ptr);
void tipc_disc_add_dest(struct tipc_link_req *req);
void tipc_disc_remove_dest(struct tipc_link_req *req);
-void tipc_disc_rcv(struct sk_buff *buf, struct tipc_bearer *b_ptr);
+void tipc_disc_rcv(struct net *net, struct sk_buff *buf,
+ struct tipc_bearer *b_ptr);
#endif
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 082c3b5b32a1..193bc1560677 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -101,19 +101,23 @@ static const struct nla_policy tipc_nl_prop_policy[TIPC_NLA_PROP_MAX + 1] = {
*/
#define START_CHANGEOVER 100000u
-static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr,
+static void link_handle_out_of_seq_msg(struct net *net,
+ struct tipc_link *l_ptr,
struct sk_buff *buf);
-static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf);
-static int tipc_link_tunnel_rcv(struct tipc_node *n_ptr,
+static void tipc_link_proto_rcv(struct net *net, struct tipc_link *l_ptr,
+ struct sk_buff *buf);
+static int tipc_link_tunnel_rcv(struct net *net, struct tipc_node *n_ptr,
struct sk_buff **buf);
-static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance);
+static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tol);
static void link_state_event(struct tipc_link *l_ptr, u32 event);
static void link_reset_statistics(struct tipc_link *l_ptr);
static void link_print(struct tipc_link *l_ptr, const char *str);
static void tipc_link_sync_xmit(struct tipc_link *l);
static void tipc_link_sync_rcv(struct tipc_node *n, struct sk_buff *buf);
-static int tipc_link_input(struct tipc_link *l, struct sk_buff *buf);
-static int tipc_link_prepare_input(struct tipc_link *l, struct sk_buff **buf);
+static int tipc_link_input(struct net *net, struct tipc_link *l,
+ struct sk_buff *buf);
+static int tipc_link_prepare_input(struct net *net, struct tipc_link *l,
+ struct sk_buff **buf);
/*
* Simple link routines
@@ -125,11 +129,13 @@ static unsigned int align(unsigned int i)
static void link_init_max_pkt(struct tipc_link *l_ptr)
{
+ struct tipc_node *node = l_ptr->owner;
+ struct tipc_net *tn = net_generic(node->net, tipc_net_id);
struct tipc_bearer *b_ptr;
u32 max_pkt;
rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(bearer_list[l_ptr->bearer_id]);
+ b_ptr = rcu_dereference_rtnl(tn->bearer_list[l_ptr->bearer_id]);
if (!b_ptr) {
rcu_read_unlock();
return;
@@ -169,8 +175,9 @@ int tipc_link_is_active(struct tipc_link *l_ptr)
* link_timeout - handle expiration of link timer
* @l_ptr: pointer to link
*/
-static void link_timeout(struct tipc_link *l_ptr)
+static void link_timeout(unsigned long data)
{
+ struct tipc_link *l_ptr = (struct tipc_link *)data;
struct sk_buff *skb;
tipc_node_lock(l_ptr->owner);
@@ -217,9 +224,9 @@ static void link_timeout(struct tipc_link *l_ptr)
tipc_node_unlock(l_ptr->owner);
}
-static void link_set_timer(struct tipc_link *l_ptr, u32 time)
+static void link_set_timer(struct tipc_link *link, unsigned long time)
{
- k_start_timer(&l_ptr->timer, time);
+ mod_timer(&link->timer, jiffies + time);
}
/**
@@ -234,6 +241,7 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
struct tipc_bearer *b_ptr,
const struct tipc_media_addr *media_addr)
{
+ struct tipc_net *tn = net_generic(n_ptr->net, tipc_net_id);
struct tipc_link *l_ptr;
struct tipc_msg *msg;
char *if_name;
@@ -263,8 +271,8 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
l_ptr->addr = peer;
if_name = strchr(b_ptr->name, ':') + 1;
sprintf(l_ptr->name, "%u.%u.%u:%s-%u.%u.%u:unknown",
- tipc_zone(tipc_own_addr), tipc_cluster(tipc_own_addr),
- tipc_node(tipc_own_addr),
+ tipc_zone(tn->own_addr), tipc_cluster(tn->own_addr),
+ tipc_node(tn->own_addr),
if_name,
tipc_zone(peer), tipc_cluster(peer), tipc_node(peer));
/* note: peer i/f name is updated by reset/activate message */
@@ -278,9 +286,10 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
l_ptr->pmsg = (struct tipc_msg *)&l_ptr->proto_msg;
msg = l_ptr->pmsg;
- tipc_msg_init(msg, LINK_PROTOCOL, RESET_MSG, INT_H_SIZE, l_ptr->addr);
+ tipc_msg_init(n_ptr->net, msg, LINK_PROTOCOL, RESET_MSG, INT_H_SIZE,
+ l_ptr->addr);
msg_set_size(msg, sizeof(l_ptr->proto_msg));
- msg_set_session(msg, (tipc_random & 0xffff));
+ msg_set_session(msg, (tn->random & 0xffff));
msg_set_bearer_id(msg, b_ptr->identity);
strcpy((char *)msg_data(msg), if_name);
@@ -299,21 +308,22 @@ struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
tipc_node_attach_link(n_ptr, l_ptr);
- k_init_timer(&l_ptr->timer, (Handler)link_timeout,
- (unsigned long)l_ptr);
+ setup_timer(&l_ptr->timer, link_timeout, (unsigned long)l_ptr);
link_state_event(l_ptr, STARTING_EVT);
return l_ptr;
}
-void tipc_link_delete_list(unsigned int bearer_id, bool shutting_down)
+void tipc_link_delete_list(struct net *net, unsigned int bearer_id,
+ bool shutting_down)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_link *l_ptr;
struct tipc_node *n_ptr;
rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tipc_node_list, list) {
+ list_for_each_entry_rcu(n_ptr, &tn->node_list, list) {
tipc_node_lock(n_ptr);
l_ptr = n_ptr->links[bearer_id];
if (l_ptr) {
@@ -350,10 +360,12 @@ void tipc_link_delete_list(unsigned int bearer_id, bool shutting_down)
static bool link_schedule_user(struct tipc_link *link, u32 oport,
uint chain_sz, uint imp)
{
+ struct net *net = link->owner->net;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *buf;
- buf = tipc_msg_create(SOCK_WAKEUP, 0, INT_H_SIZE, 0, tipc_own_addr,
- tipc_own_addr, oport, 0, 0);
+ buf = tipc_msg_create(net, SOCK_WAKEUP, 0, INT_H_SIZE, 0, tn->own_addr,
+ tn->own_addr, oport, 0, 0);
if (!buf)
return false;
TIPC_SKB_CB(buf)->chain_sz = chain_sz;
@@ -425,7 +437,7 @@ void tipc_link_reset(struct tipc_link *l_ptr)
return;
tipc_node_link_down(l_ptr->owner, l_ptr);
- tipc_bearer_remove_dest(l_ptr->bearer_id, l_ptr->addr);
+ tipc_bearer_remove_dest(owner->net, l_ptr->bearer_id, l_ptr->addr);
if (was_active_link && tipc_node_active_links(l_ptr->owner)) {
l_ptr->reset_checkpoint = checkpoint;
@@ -448,13 +460,14 @@ void tipc_link_reset(struct tipc_link *l_ptr)
link_reset_statistics(l_ptr);
}
-void tipc_link_reset_list(unsigned int bearer_id)
+void tipc_link_reset_list(struct net *net, unsigned int bearer_id)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_link *l_ptr;
struct tipc_node *n_ptr;
rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tipc_node_list, list) {
+ list_for_each_entry_rcu(n_ptr, &tn->node_list, list) {
tipc_node_lock(n_ptr);
l_ptr = n_ptr->links[bearer_id];
if (l_ptr)
@@ -464,11 +477,14 @@ void tipc_link_reset_list(unsigned int bearer_id)
rcu_read_unlock();
}
-static void link_activate(struct tipc_link *l_ptr)
+static void link_activate(struct tipc_link *link)
{
- l_ptr->next_in_no = l_ptr->stats.recv_info = 1;
- tipc_node_link_up(l_ptr->owner, l_ptr);
- tipc_bearer_add_dest(l_ptr->bearer_id, l_ptr->addr);
+ struct tipc_node *node = link->owner;
+
+ link->next_in_no = 1;
+ link->stats.recv_info = 1;
+ tipc_node_link_up(node, link);
+ tipc_bearer_add_dest(node->net, link->bearer_id, link->addr);
}
/**
@@ -479,7 +495,7 @@ static void link_activate(struct tipc_link *l_ptr)
static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
{
struct tipc_link *other;
- u32 cont_intv = l_ptr->continuity_interval;
+ unsigned long cont_intv = l_ptr->cont_intv;
if (l_ptr->flags & LINK_STOPPED)
return;
@@ -700,7 +716,8 @@ drop:
* Only the socket functions tipc_send_stream() and tipc_send_packet() need
* to act on the return value, since they may need to do more send attempts.
*/
-int __tipc_link_xmit(struct tipc_link *link, struct sk_buff_head *list)
+int __tipc_link_xmit(struct net *net, struct tipc_link *link,
+ struct sk_buff_head *list)
{
struct tipc_msg *msg = buf_msg(skb_peek(list));
uint psz = msg_size(msg);
@@ -733,13 +750,14 @@ int __tipc_link_xmit(struct tipc_link *link, struct sk_buff_head *list)
if (skb_queue_len(outqueue) < sndlim) {
__skb_queue_tail(outqueue, skb);
- tipc_bearer_send(link->bearer_id, skb, addr);
+ tipc_bearer_send(net, link->bearer_id,
+ skb, addr);
link->next_out = NULL;
link->unacked_window = 0;
} else if (tipc_msg_bundle(outqueue, skb, mtu)) {
link->stats.sent_bundled++;
continue;
- } else if (tipc_msg_make_bundle(outqueue, skb, mtu,
+ } else if (tipc_msg_make_bundle(net, outqueue, skb, mtu,
link->addr)) {
link->stats.sent_bundled++;
link->stats.sent_bundles++;
@@ -767,19 +785,21 @@ static int __tipc_link_xmit_skb(struct tipc_link *link, struct sk_buff *skb)
struct sk_buff_head head;
skb2list(skb, &head);
- return __tipc_link_xmit(link, &head);
+ return __tipc_link_xmit(link->owner->net, link, &head);
}
-int tipc_link_xmit_skb(struct sk_buff *skb, u32 dnode, u32 selector)
+int tipc_link_xmit_skb(struct net *net, struct sk_buff *skb, u32 dnode,
+ u32 selector)
{
struct sk_buff_head head;
skb2list(skb, &head);
- return tipc_link_xmit(&head, dnode, selector);
+ return tipc_link_xmit(net, &head, dnode, selector);
}
/**
* tipc_link_xmit() is the general link level function for message sending
+ * @net: the applicable net namespace
* @list: chain of buffers containing message
* @dsz: amount of user data to be sent
* @dnode: address of destination node
@@ -787,30 +807,31 @@ int tipc_link_xmit_skb(struct sk_buff *skb, u32 dnode, u32 selector)
* Consumes the buffer chain, except when returning -ELINKCONG
* Returns 0 if success, otherwise errno: -ELINKCONG,-EHOSTUNREACH,-EMSGSIZE
*/
-int tipc_link_xmit(struct sk_buff_head *list, u32 dnode, u32 selector)
+int tipc_link_xmit(struct net *net, struct sk_buff_head *list, u32 dnode,
+ u32 selector)
{
struct tipc_link *link = NULL;
struct tipc_node *node;
int rc = -EHOSTUNREACH;
- node = tipc_node_find(dnode);
+ node = tipc_node_find(net, dnode);
if (node) {
tipc_node_lock(node);
link = node->active_links[selector & 1];
if (link)
- rc = __tipc_link_xmit(link, list);
+ rc = __tipc_link_xmit(net, link, list);
tipc_node_unlock(node);
}
if (link)
return rc;
- if (likely(in_own_node(dnode))) {
+ if (likely(in_own_node(net, dnode))) {
/* As a node local message chain never contains more than one
* buffer, we just need to dequeue one SKB buffer from the
* head list.
*/
- return tipc_sk_rcv(__skb_dequeue(list));
+ return tipc_sk_rcv(net, __skb_dequeue(list));
}
__skb_queue_purge(list);
@@ -835,7 +856,8 @@ static void tipc_link_sync_xmit(struct tipc_link *link)
return;
msg = buf_msg(skb);
- tipc_msg_init(msg, BCAST_PROTOCOL, STATE_MSG, INT_H_SIZE, link->addr);
+ tipc_msg_init(link->owner->net, msg, BCAST_PROTOCOL, STATE_MSG,
+ INT_H_SIZE, link->addr);
msg_set_last_bcast(msg, link->owner->bclink.acked);
__tipc_link_xmit_skb(link, skb);
}
@@ -890,7 +912,8 @@ void tipc_link_push_packets(struct tipc_link *l_ptr)
msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in);
if (msg_user(msg) == MSG_BUNDLER)
TIPC_SKB_CB(skb)->bundling = false;
- tipc_bearer_send(l_ptr->bearer_id, skb,
+ tipc_bearer_send(l_ptr->owner->net,
+ l_ptr->bearer_id, skb,
&l_ptr->media_addr);
l_ptr->next_out = tipc_skb_queue_next(outqueue, skb);
} else {
@@ -923,6 +946,7 @@ static void link_retransmit_failure(struct tipc_link *l_ptr,
struct sk_buff *buf)
{
struct tipc_msg *msg = buf_msg(buf);
+ struct net *net = l_ptr->owner->net;
pr_warn("Retransmission failure on link <%s>\n", l_ptr->name);
@@ -940,7 +964,7 @@ static void link_retransmit_failure(struct tipc_link *l_ptr,
pr_cont("Outstanding acks: %lu\n",
(unsigned long) TIPC_SKB_CB(buf)->handle);
- n_ptr = tipc_bclink_retransmit_to();
+ n_ptr = tipc_bclink_retransmit_to(net);
tipc_node_lock(n_ptr);
tipc_addr_string_fill(addr_string, n_ptr->addr);
@@ -955,7 +979,7 @@ static void link_retransmit_failure(struct tipc_link *l_ptr,
tipc_node_unlock(n_ptr);
- tipc_bclink_set_flags(TIPC_BCLINK_RESET);
+ tipc_bclink_set_flags(net, TIPC_BCLINK_RESET);
l_ptr->stale_count = 0;
}
}
@@ -987,7 +1011,8 @@ void tipc_link_retransmit(struct tipc_link *l_ptr, struct sk_buff *skb,
msg = buf_msg(skb);
msg_set_ack(msg, mod(l_ptr->next_in_no - 1));
msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in);
- tipc_bearer_send(l_ptr->bearer_id, skb, &l_ptr->media_addr);
+ tipc_bearer_send(l_ptr->owner->net, l_ptr->bearer_id, skb,
+ &l_ptr->media_addr);
retransmits--;
l_ptr->stats.retransmitted++;
}
@@ -1063,14 +1088,16 @@ static int link_recv_buf_validate(struct sk_buff *buf)
/**
* tipc_rcv - process TIPC packets/messages arriving from off-node
+ * @net: the applicable net namespace
* @skb: TIPC packet
* @b_ptr: pointer to bearer message arrived on
*
* Invoked with no locks held. Bearer pointer must point to a valid bearer
* structure (i.e. cannot be NULL), but bearer can be inactive.
*/
-void tipc_rcv(struct sk_buff *skb, struct tipc_bearer *b_ptr)
+void tipc_rcv(struct net *net, struct sk_buff *skb, struct tipc_bearer *b_ptr)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff_head head;
struct tipc_node *n_ptr;
struct tipc_link *l_ptr;
@@ -1096,19 +1123,19 @@ void tipc_rcv(struct sk_buff *skb, struct tipc_bearer *b_ptr)
if (unlikely(msg_non_seq(msg))) {
if (msg_user(msg) == LINK_CONFIG)
- tipc_disc_rcv(skb, b_ptr);
+ tipc_disc_rcv(net, skb, b_ptr);
else
- tipc_bclink_rcv(skb);
+ tipc_bclink_rcv(net, skb);
continue;
}
/* Discard unicast link messages destined for another node */
if (unlikely(!msg_short(msg) &&
- (msg_destnode(msg) != tipc_own_addr)))
+ (msg_destnode(msg) != tn->own_addr)))
goto discard;
/* Locate neighboring node that sent message */
- n_ptr = tipc_node_find(msg_prevnode(msg));
+ n_ptr = tipc_node_find(net, msg_prevnode(msg));
if (unlikely(!n_ptr))
goto discard;
tipc_node_lock(n_ptr);
@@ -1159,7 +1186,7 @@ void tipc_rcv(struct sk_buff *skb, struct tipc_bearer *b_ptr)
/* Process the incoming packet */
if (unlikely(!link_working_working(l_ptr))) {
if (msg_user(msg) == LINK_PROTOCOL) {
- tipc_link_proto_rcv(l_ptr, skb);
+ tipc_link_proto_rcv(net, l_ptr, skb);
link_retrieve_defq(l_ptr, &head);
tipc_node_unlock(n_ptr);
continue;
@@ -1179,7 +1206,7 @@ void tipc_rcv(struct sk_buff *skb, struct tipc_bearer *b_ptr)
/* Link is now in state WORKING_WORKING */
if (unlikely(seq_no != mod(l_ptr->next_in_no))) {
- link_handle_out_of_seq_msg(l_ptr, skb);
+ link_handle_out_of_seq_msg(net, l_ptr, skb);
link_retrieve_defq(l_ptr, &head);
tipc_node_unlock(n_ptr);
continue;
@@ -1193,13 +1220,13 @@ void tipc_rcv(struct sk_buff *skb, struct tipc_bearer *b_ptr)
tipc_link_proto_xmit(l_ptr, STATE_MSG, 0, 0, 0, 0, 0);
}
- if (tipc_link_prepare_input(l_ptr, &skb)) {
+ if (tipc_link_prepare_input(net, l_ptr, &skb)) {
tipc_node_unlock(n_ptr);
continue;
}
tipc_node_unlock(n_ptr);
- if (tipc_link_input(l_ptr, skb) != 0)
+ if (tipc_link_input(net, l_ptr, skb) != 0)
goto discard;
continue;
unlock_discard:
@@ -1216,7 +1243,8 @@ discard:
*
* Node lock must be held
*/
-static int tipc_link_prepare_input(struct tipc_link *l, struct sk_buff **buf)
+static int tipc_link_prepare_input(struct net *net, struct tipc_link *l,
+ struct sk_buff **buf)
{
struct tipc_node *n;
struct tipc_msg *msg;
@@ -1226,7 +1254,7 @@ static int tipc_link_prepare_input(struct tipc_link *l, struct sk_buff **buf)
msg = buf_msg(*buf);
switch (msg_user(msg)) {
case CHANGEOVER_PROTOCOL:
- if (tipc_link_tunnel_rcv(n, buf))
+ if (tipc_link_tunnel_rcv(net, n, buf))
res = 0;
break;
case MSG_FRAGMENTER:
@@ -1258,7 +1286,8 @@ static int tipc_link_prepare_input(struct tipc_link *l, struct sk_buff **buf)
/**
* tipc_link_input - Deliver message too higher layers
*/
-static int tipc_link_input(struct tipc_link *l, struct sk_buff *buf)
+static int tipc_link_input(struct net *net, struct tipc_link *l,
+ struct sk_buff *buf)
{
struct tipc_msg *msg = buf_msg(buf);
int res = 0;
@@ -1269,13 +1298,13 @@ static int tipc_link_input(struct tipc_link *l, struct sk_buff *buf)
case TIPC_HIGH_IMPORTANCE:
case TIPC_CRITICAL_IMPORTANCE:
case CONN_MANAGER:
- tipc_sk_rcv(buf);
+ tipc_sk_rcv(net, buf);
break;
case NAME_DISTRIBUTOR:
- tipc_named_rcv(buf);
+ tipc_named_rcv(net, buf);
break;
case MSG_BUNDLER:
- tipc_link_bundle_rcv(buf);
+ tipc_link_bundle_rcv(net, buf);
break;
default:
res = -EINVAL;
@@ -1325,13 +1354,14 @@ u32 tipc_link_defer_pkt(struct sk_buff_head *list, struct sk_buff *skb)
/*
* link_handle_out_of_seq_msg - handle arrival of out-of-sequence packet
*/
-static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr,
+static void link_handle_out_of_seq_msg(struct net *net,
+ struct tipc_link *l_ptr,
struct sk_buff *buf)
{
u32 seq_no = buf_seqno(buf);
if (likely(msg_user(buf_msg(buf)) == LINK_PROTOCOL)) {
- tipc_link_proto_rcv(l_ptr, buf);
+ tipc_link_proto_rcv(net, l_ptr, buf);
return;
}
@@ -1381,7 +1411,7 @@ void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
msg_set_type(msg, msg_typ);
msg_set_net_plane(msg, l_ptr->net_plane);
msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in);
- msg_set_last_bcast(msg, tipc_bclink_get_last_sent());
+ msg_set_last_bcast(msg, tipc_bclink_get_last_sent(l_ptr->owner->net));
if (msg_typ == STATE_MSG) {
u32 next_sent = mod(l_ptr->next_out_no);
@@ -1445,7 +1475,8 @@ void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
buf->priority = TC_PRIO_CONTROL;
- tipc_bearer_send(l_ptr->bearer_id, buf, &l_ptr->media_addr);
+ tipc_bearer_send(l_ptr->owner->net, l_ptr->bearer_id, buf,
+ &l_ptr->media_addr);
l_ptr->unacked_window = 0;
kfree_skb(buf);
}
@@ -1455,8 +1486,10 @@ void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
* Note that network plane id propagates through the network, and may
* change at any time. The node with lowest address rules
*/
-static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf)
+static void tipc_link_proto_rcv(struct net *net, struct tipc_link *l_ptr,
+ struct sk_buff *buf)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 rec_gap = 0;
u32 max_pkt_info;
u32 max_pkt_ack;
@@ -1468,7 +1501,7 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf)
goto exit;
if (l_ptr->net_plane != msg_net_plane(msg))
- if (tipc_own_addr > msg_prevnode(msg))
+ if (tn->own_addr > msg_prevnode(msg))
l_ptr->net_plane = msg_net_plane(msg);
switch (msg_type(msg)) {
@@ -1571,7 +1604,7 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf)
/* Protocol message before retransmits, reduce loss risk */
if (l_ptr->owner->bclink.recv_permitted)
- tipc_bclink_update_link_state(l_ptr->owner,
+ tipc_bclink_update_link_state(net, l_ptr->owner,
msg_last_bcast(msg));
if (rec_gap || (msg_probe(msg))) {
@@ -1636,8 +1669,8 @@ void tipc_link_failover_send_queue(struct tipc_link *l_ptr)
if (!tunnel)
return;
- tipc_msg_init(&tunnel_hdr, CHANGEOVER_PROTOCOL,
- ORIGINAL_MSG, INT_H_SIZE, l_ptr->addr);
+ tipc_msg_init(l_ptr->owner->net, &tunnel_hdr, CHANGEOVER_PROTOCOL,
+ ORIGINAL_MSG, INT_H_SIZE, l_ptr->addr);
msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id);
msg_set_msgcnt(&tunnel_hdr, msgcount);
@@ -1694,8 +1727,8 @@ void tipc_link_dup_queue_xmit(struct tipc_link *l_ptr,
struct sk_buff *skb;
struct tipc_msg tunnel_hdr;
- tipc_msg_init(&tunnel_hdr, CHANGEOVER_PROTOCOL,
- DUPLICATE_MSG, INT_H_SIZE, l_ptr->addr);
+ tipc_msg_init(l_ptr->owner->net, &tunnel_hdr, CHANGEOVER_PROTOCOL,
+ DUPLICATE_MSG, INT_H_SIZE, l_ptr->addr);
msg_set_msgcnt(&tunnel_hdr, skb_queue_len(&l_ptr->outqueue));
msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id);
skb_queue_walk(&l_ptr->outqueue, skb) {
@@ -1748,7 +1781,7 @@ static struct sk_buff *buf_extract(struct sk_buff *skb, u32 from_pos)
/* tipc_link_dup_rcv(): Receive a tunnelled DUPLICATE_MSG packet.
* Owner node is locked.
*/
-static void tipc_link_dup_rcv(struct tipc_link *l_ptr,
+static void tipc_link_dup_rcv(struct net *net, struct tipc_link *l_ptr,
struct sk_buff *t_buf)
{
struct sk_buff *buf;
@@ -1763,7 +1796,7 @@ static void tipc_link_dup_rcv(struct tipc_link *l_ptr,
}
/* Add buffer to deferred queue, if applicable: */
- link_handle_out_of_seq_msg(l_ptr, buf);
+ link_handle_out_of_seq_msg(net, l_ptr, buf);
}
/* tipc_link_failover_rcv(): Receive a tunnelled ORIGINAL_MSG packet
@@ -1817,7 +1850,7 @@ exit:
* returned to the active link for delivery upwards.
* Owner node is locked.
*/
-static int tipc_link_tunnel_rcv(struct tipc_node *n_ptr,
+static int tipc_link_tunnel_rcv(struct net *net, struct tipc_node *n_ptr,
struct sk_buff **buf)
{
struct sk_buff *t_buf = *buf;
@@ -1835,7 +1868,7 @@ static int tipc_link_tunnel_rcv(struct tipc_node *n_ptr,
goto exit;
if (msg_type(t_msg) == DUPLICATE_MSG)
- tipc_link_dup_rcv(l_ptr, t_buf);
+ tipc_link_dup_rcv(net, l_ptr, t_buf);
else if (msg_type(t_msg) == ORIGINAL_MSG)
*buf = tipc_link_failover_rcv(l_ptr, t_buf);
else
@@ -1848,7 +1881,7 @@ exit:
/*
* Bundler functionality:
*/
-void tipc_link_bundle_rcv(struct sk_buff *buf)
+void tipc_link_bundle_rcv(struct net *net, struct sk_buff *buf)
{
u32 msgcount = msg_msgcnt(buf_msg(buf));
u32 pos = INT_H_SIZE;
@@ -1865,13 +1898,13 @@ void tipc_link_bundle_rcv(struct sk_buff *buf)
pos += align(msg_size(omsg));
if (msg_isdata(omsg)) {
if (unlikely(msg_type(omsg) == TIPC_MCAST_MSG))
- tipc_sk_mcast_rcv(obuf);
+ tipc_sk_mcast_rcv(net, obuf);
else
- tipc_sk_rcv(obuf);
+ tipc_sk_rcv(net, obuf);
} else if (msg_user(omsg) == CONN_MANAGER) {
- tipc_sk_rcv(obuf);
+ tipc_sk_rcv(net, obuf);
} else if (msg_user(omsg) == NAME_DISTRIBUTOR) {
- tipc_named_rcv(obuf);
+ tipc_named_rcv(net, obuf);
} else {
pr_warn("Illegal bundled msg: %u\n", msg_user(omsg));
kfree_skb(obuf);
@@ -1880,15 +1913,16 @@ void tipc_link_bundle_rcv(struct sk_buff *buf)
kfree_skb(buf);
}
-static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance)
+static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tol)
{
- if ((tolerance < TIPC_MIN_LINK_TOL) || (tolerance > TIPC_MAX_LINK_TOL))
+ unsigned long intv = ((tol / 4) > 500) ? 500 : tol / 4;
+
+ if ((tol < TIPC_MIN_LINK_TOL) || (tol > TIPC_MAX_LINK_TOL))
return;
- l_ptr->tolerance = tolerance;
- l_ptr->continuity_interval =
- ((tolerance / 4) > 500) ? 500 : tolerance / 4;
- l_ptr->abort_limit = tolerance / (l_ptr->continuity_interval / 4);
+ l_ptr->tolerance = tol;
+ l_ptr->cont_intv = msecs_to_jiffies(intv);
+ l_ptr->abort_limit = tol / (jiffies_to_msecs(l_ptr->cont_intv) / 4);
}
void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window)
@@ -1911,14 +1945,17 @@ void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window)
}
/* tipc_link_find_owner - locate owner node of link by link's name
+ * @net: the applicable net namespace
* @name: pointer to link name string
* @bearer_id: pointer to index in 'node->links' array where the link was found.
*
* Returns pointer to node owning the link, or 0 if no matching link is found.
*/
-static struct tipc_node *tipc_link_find_owner(const char *link_name,
+static struct tipc_node *tipc_link_find_owner(struct net *net,
+ const char *link_name,
unsigned int *bearer_id)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_link *l_ptr;
struct tipc_node *n_ptr;
struct tipc_node *found_node = NULL;
@@ -1926,7 +1963,7 @@ static struct tipc_node *tipc_link_find_owner(const char *link_name,
*bearer_id = 0;
rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tipc_node_list, list) {
+ list_for_each_entry_rcu(n_ptr, &tn->node_list, list) {
tipc_node_lock(n_ptr);
for (i = 0; i < MAX_BEARERS; i++) {
l_ptr = n_ptr->links[i];
@@ -1970,6 +2007,7 @@ static int link_value_is_valid(u16 cmd, u32 new_value)
/**
* link_cmd_set_value - change priority/tolerance/window for link/bearer/media
+ * @net: the applicable net namespace
* @name: ptr to link, bearer, or media name
* @new_value: new value of link, bearer, or media setting
* @cmd: which link, bearer, or media attribute to set (TIPC_CMD_SET_LINK_*)
@@ -1978,7 +2016,8 @@ static int link_value_is_valid(u16 cmd, u32 new_value)
*
* Returns 0 if value updated and negative value on error.
*/
-static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
+static int link_cmd_set_value(struct net *net, const char *name, u32 new_value,
+ u16 cmd)
{
struct tipc_node *node;
struct tipc_link *l_ptr;
@@ -1987,7 +2026,7 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
int bearer_id;
int res = 0;
- node = tipc_link_find_owner(name, &bearer_id);
+ node = tipc_link_find_owner(net, name, &bearer_id);
if (node) {
tipc_node_lock(node);
l_ptr = node->links[bearer_id];
@@ -2016,7 +2055,7 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
return res;
}
- b_ptr = tipc_bearer_find(name);
+ b_ptr = tipc_bearer_find(net, name);
if (b_ptr) {
switch (cmd) {
case TIPC_CMD_SET_LINK_TOL:
@@ -2055,8 +2094,8 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
return res;
}
-struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space,
- u16 cmd)
+struct sk_buff *tipc_link_cmd_config(struct net *net, const void *req_tlv_area,
+ int req_tlv_space, u16 cmd)
{
struct tipc_link_config *args;
u32 new_value;
@@ -2074,13 +2113,13 @@ struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space
if (!strcmp(args->name, tipc_bclink_name)) {
if ((cmd == TIPC_CMD_SET_LINK_WINDOW) &&
- (tipc_bclink_set_queue_limits(new_value) == 0))
+ (tipc_bclink_set_queue_limits(net, new_value) == 0))
return tipc_cfg_reply_none();
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change setting on broadcast link)");
}
- res = link_cmd_set_value(args->name, new_value, cmd);
+ res = link_cmd_set_value(net, args->name, new_value, cmd);
if (res)
return tipc_cfg_reply_error_string("cannot change link setting");
@@ -2098,7 +2137,9 @@ static void link_reset_statistics(struct tipc_link *l_ptr)
l_ptr->stats.recv_info = l_ptr->next_in_no;
}
-struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_space)
+struct sk_buff *tipc_link_cmd_reset_stats(struct net *net,
+ const void *req_tlv_area,
+ int req_tlv_space)
{
char *link_name;
struct tipc_link *l_ptr;
@@ -2110,11 +2151,11 @@ struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_
link_name = (char *)TLV_DATA(req_tlv_area);
if (!strcmp(link_name, tipc_bclink_name)) {
- if (tipc_bclink_reset_stats())
+ if (tipc_bclink_reset_stats(net))
return tipc_cfg_reply_error_string("link not found");
return tipc_cfg_reply_none();
}
- node = tipc_link_find_owner(link_name, &bearer_id);
+ node = tipc_link_find_owner(net, link_name, &bearer_id);
if (!node)
return tipc_cfg_reply_error_string("link not found");
@@ -2139,13 +2180,15 @@ static u32 percent(u32 count, u32 total)
/**
* tipc_link_stats - print link statistics
+ * @net: the applicable net namespace
* @name: link name
* @buf: print buffer area
* @buf_size: size of print buffer area
*
* Returns length of print buffer data string (or 0 if error)
*/
-static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
+static int tipc_link_stats(struct net *net, const char *name, char *buf,
+ const u32 buf_size)
{
struct tipc_link *l;
struct tipc_stats *s;
@@ -2156,9 +2199,9 @@ static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
int ret;
if (!strcmp(name, tipc_bclink_name))
- return tipc_bclink_stats(buf, buf_size);
+ return tipc_bclink_stats(net, buf, buf_size);
- node = tipc_link_find_owner(name, &bearer_id);
+ node = tipc_link_find_owner(net, name, &bearer_id);
if (!node)
return 0;
@@ -2235,7 +2278,9 @@ static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
return ret;
}
-struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_space)
+struct sk_buff *tipc_link_cmd_show_stats(struct net *net,
+ const void *req_tlv_area,
+ int req_tlv_space)
{
struct sk_buff *buf;
struct tlv_desc *rep_tlv;
@@ -2253,7 +2298,7 @@ struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_s
rep_tlv = (struct tlv_desc *)buf->data;
pb = TLV_DATA(rep_tlv);
pb_len = ULTRA_STRING_MAX_LEN;
- str_len = tipc_link_stats((char *)TLV_DATA(req_tlv_area),
+ str_len = tipc_link_stats(net, (char *)TLV_DATA(req_tlv_area),
pb, pb_len);
if (!str_len) {
kfree_skb(buf);
@@ -2266,39 +2311,13 @@ struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_s
return buf;
}
-/**
- * tipc_link_get_max_pkt - get maximum packet size to use when sending to destination
- * @dest: network address of destination node
- * @selector: used to select from set of active links
- *
- * If no active link can be found, uses default maximum packet size.
- */
-u32 tipc_link_get_max_pkt(u32 dest, u32 selector)
-{
- struct tipc_node *n_ptr;
- struct tipc_link *l_ptr;
- u32 res = MAX_PKT_DEFAULT;
-
- if (dest == tipc_own_addr)
- return MAX_MSG_SIZE;
-
- n_ptr = tipc_node_find(dest);
- if (n_ptr) {
- tipc_node_lock(n_ptr);
- l_ptr = n_ptr->active_links[selector & 1];
- if (l_ptr)
- res = l_ptr->max_pkt;
- tipc_node_unlock(n_ptr);
- }
- return res;
-}
-
static void link_print(struct tipc_link *l_ptr, const char *str)
{
+ struct tipc_net *tn = net_generic(l_ptr->owner->net, tipc_net_id);
struct tipc_bearer *b_ptr;
rcu_read_lock();
- b_ptr = rcu_dereference_rtnl(bearer_list[l_ptr->bearer_id]);
+ b_ptr = rcu_dereference_rtnl(tn->bearer_list[l_ptr->bearer_id]);
if (b_ptr)
pr_info("%s Link %x<%s>:", str, l_ptr->addr, b_ptr->name);
rcu_read_unlock();
@@ -2362,6 +2381,7 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info)
struct tipc_link *link;
struct tipc_node *node;
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1];
+ struct net *net = genl_info_net(info);
if (!info->attrs[TIPC_NLA_LINK])
return -EINVAL;
@@ -2377,7 +2397,7 @@ int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info)
name = nla_data(attrs[TIPC_NLA_LINK_NAME]);
- node = tipc_link_find_owner(name, &bearer_id);
+ node = tipc_link_find_owner(net, name, &bearer_id);
if (!node)
return -EINVAL;
@@ -2493,12 +2513,14 @@ msg_full:
}
/* Caller should hold appropriate locks to protect the link */
-static int __tipc_nl_add_link(struct tipc_nl_msg *msg, struct tipc_link *link)
+static int __tipc_nl_add_link(struct net *net, struct tipc_nl_msg *msg,
+ struct tipc_link *link)
{
int err;
void *hdr;
struct nlattr *attrs;
struct nlattr *prop;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
hdr = genlmsg_put(msg->skb, msg->portid, msg->seq, &tipc_genl_v2_family,
NLM_F_MULTI, TIPC_NL_LINK_GET);
@@ -2512,7 +2534,7 @@ static int __tipc_nl_add_link(struct tipc_nl_msg *msg, struct tipc_link *link)
if (nla_put_string(msg->skb, TIPC_NLA_LINK_NAME, link->name))
goto attr_msg_full;
if (nla_put_u32(msg->skb, TIPC_NLA_LINK_DEST,
- tipc_cluster_mask(tipc_own_addr)))
+ tipc_cluster_mask(tn->own_addr)))
goto attr_msg_full;
if (nla_put_u32(msg->skb, TIPC_NLA_LINK_MTU, link->max_pkt))
goto attr_msg_full;
@@ -2562,9 +2584,8 @@ msg_full:
}
/* Caller should hold node lock */
-static int __tipc_nl_add_node_links(struct tipc_nl_msg *msg,
- struct tipc_node *node,
- u32 *prev_link)
+static int __tipc_nl_add_node_links(struct net *net, struct tipc_nl_msg *msg,
+ struct tipc_node *node, u32 *prev_link)
{
u32 i;
int err;
@@ -2575,7 +2596,7 @@ static int __tipc_nl_add_node_links(struct tipc_nl_msg *msg,
if (!node->links[i])
continue;
- err = __tipc_nl_add_link(msg, node->links[i]);
+ err = __tipc_nl_add_link(net, msg, node->links[i]);
if (err)
return err;
}
@@ -2586,6 +2607,8 @@ static int __tipc_nl_add_node_links(struct tipc_nl_msg *msg,
int tipc_nl_link_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct net *net = sock_net(skb->sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_node *node;
struct tipc_nl_msg msg;
u32 prev_node = cb->args[0];
@@ -2603,7 +2626,7 @@ int tipc_nl_link_dump(struct sk_buff *skb, struct netlink_callback *cb)
rcu_read_lock();
if (prev_node) {
- node = tipc_node_find(prev_node);
+ node = tipc_node_find(net, prev_node);
if (!node) {
/* We never set seq or call nl_dump_check_consistent()
* this means that setting prev_seq here will cause the
@@ -2615,9 +2638,11 @@ int tipc_nl_link_dump(struct sk_buff *skb, struct netlink_callback *cb)
goto out;
}
- list_for_each_entry_continue_rcu(node, &tipc_node_list, list) {
+ list_for_each_entry_continue_rcu(node, &tn->node_list,
+ list) {
tipc_node_lock(node);
- err = __tipc_nl_add_node_links(&msg, node, &prev_link);
+ err = __tipc_nl_add_node_links(net, &msg, node,
+ &prev_link);
tipc_node_unlock(node);
if (err)
goto out;
@@ -2625,13 +2650,14 @@ int tipc_nl_link_dump(struct sk_buff *skb, struct netlink_callback *cb)
prev_node = node->addr;
}
} else {
- err = tipc_nl_add_bc_link(&msg);
+ err = tipc_nl_add_bc_link(net, &msg);
if (err)
goto out;
- list_for_each_entry_rcu(node, &tipc_node_list, list) {
+ list_for_each_entry_rcu(node, &tn->node_list, list) {
tipc_node_lock(node);
- err = __tipc_nl_add_node_links(&msg, node, &prev_link);
+ err = __tipc_nl_add_node_links(net, &msg, node,
+ &prev_link);
tipc_node_unlock(node);
if (err)
goto out;
@@ -2652,6 +2678,7 @@ out:
int tipc_nl_link_get(struct sk_buff *skb, struct genl_info *info)
{
+ struct net *net = genl_info_net(info);
struct sk_buff *ans_skb;
struct tipc_nl_msg msg;
struct tipc_link *link;
@@ -2664,7 +2691,7 @@ int tipc_nl_link_get(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
name = nla_data(info->attrs[TIPC_NLA_LINK_NAME]);
- node = tipc_link_find_owner(name, &bearer_id);
+ node = tipc_link_find_owner(net, name, &bearer_id);
if (!node)
return -EINVAL;
@@ -2683,7 +2710,7 @@ int tipc_nl_link_get(struct sk_buff *skb, struct genl_info *info)
goto err_out;
}
- err = __tipc_nl_add_link(&msg, link);
+ err = __tipc_nl_add_link(net, &msg, link);
if (err)
goto err_out;
@@ -2706,6 +2733,7 @@ int tipc_nl_link_reset_stats(struct sk_buff *skb, struct genl_info *info)
struct tipc_link *link;
struct tipc_node *node;
struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1];
+ struct net *net = genl_info_net(info);
if (!info->attrs[TIPC_NLA_LINK])
return -EINVAL;
@@ -2722,13 +2750,13 @@ int tipc_nl_link_reset_stats(struct sk_buff *skb, struct genl_info *info)
link_name = nla_data(attrs[TIPC_NLA_LINK_NAME]);
if (strcmp(link_name, tipc_bclink_name) == 0) {
- err = tipc_bclink_reset_stats();
+ err = tipc_bclink_reset_stats(net);
if (err)
return err;
return 0;
}
- node = tipc_link_find_owner(link_name, &bearer_id);
+ node = tipc_link_find_owner(net, link_name, &bearer_id);
if (!node)
return -EINVAL;
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 55812e87ca1e..9df7fa4d3bdd 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -41,6 +41,10 @@
#include "msg.h"
#include "node.h"
+/* TIPC-specific error codes
+*/
+#define ELINKCONG EAGAIN /* link congestion <=> resource unavailable */
+
/* Out-of-range value for link sequence numbers
*/
#define INVALID_LINK_SEQ 0x10000
@@ -105,7 +109,7 @@ struct tipc_stats {
* @peer_bearer_id: bearer id used by link's peer endpoint
* @bearer_id: local bearer id used by link
* @tolerance: minimum link continuity loss needed to reset link [in ms]
- * @continuity_interval: link continuity testing interval [in ms]
+ * @cont_intv: link continuity testing interval
* @abort_limit: # of unacknowledged continuity probes needed to reset link
* @state: current state of link FSM
* @fsm_msg_cnt: # of protocol messages link FSM has sent in current state
@@ -146,7 +150,7 @@ struct tipc_link {
u32 peer_bearer_id;
u32 bearer_id;
u32 tolerance;
- u32 continuity_interval;
+ unsigned long cont_intv;
u32 abort_limit;
int state;
u32 fsm_msg_cnt;
@@ -196,28 +200,32 @@ struct tipc_port;
struct tipc_link *tipc_link_create(struct tipc_node *n_ptr,
struct tipc_bearer *b_ptr,
const struct tipc_media_addr *media_addr);
-void tipc_link_delete_list(unsigned int bearer_id, bool shutting_down);
+void tipc_link_delete_list(struct net *net, unsigned int bearer_id,
+ bool shutting_down);
void tipc_link_failover_send_queue(struct tipc_link *l_ptr);
void tipc_link_dup_queue_xmit(struct tipc_link *l_ptr, struct tipc_link *dest);
void tipc_link_reset_fragments(struct tipc_link *l_ptr);
int tipc_link_is_up(struct tipc_link *l_ptr);
int tipc_link_is_active(struct tipc_link *l_ptr);
void tipc_link_purge_queues(struct tipc_link *l_ptr);
-struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area,
- int req_tlv_space,
- u16 cmd);
-struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area,
+struct sk_buff *tipc_link_cmd_config(struct net *net, const void *req_tlv_area,
+ int req_tlv_space, u16 cmd);
+struct sk_buff *tipc_link_cmd_show_stats(struct net *net,
+ const void *req_tlv_area,
int req_tlv_space);
-struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area,
+struct sk_buff *tipc_link_cmd_reset_stats(struct net *net,
+ const void *req_tlv_area,
int req_tlv_space);
void tipc_link_reset_all(struct tipc_node *node);
void tipc_link_reset(struct tipc_link *l_ptr);
-void tipc_link_reset_list(unsigned int bearer_id);
-int tipc_link_xmit_skb(struct sk_buff *skb, u32 dest, u32 selector);
-int tipc_link_xmit(struct sk_buff_head *list, u32 dest, u32 selector);
-int __tipc_link_xmit(struct tipc_link *link, struct sk_buff_head *list);
-u32 tipc_link_get_max_pkt(u32 dest, u32 selector);
-void tipc_link_bundle_rcv(struct sk_buff *buf);
+void tipc_link_reset_list(struct net *net, unsigned int bearer_id);
+int tipc_link_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest,
+ u32 selector);
+int tipc_link_xmit(struct net *net, struct sk_buff_head *list, u32 dest,
+ u32 selector);
+int __tipc_link_xmit(struct net *net, struct tipc_link *link,
+ struct sk_buff_head *list);
+void tipc_link_bundle_rcv(struct net *net, struct sk_buff *buf);
void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int prob,
u32 gap, u32 tolerance, u32 priority, u32 acked_mtu);
void tipc_link_push_packets(struct tipc_link *l_ptr);
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index a687b30a699c..18aba9e99345 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -34,6 +34,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#include <net/sock.h>
#include "core.h"
#include "msg.h"
#include "addr.h"
@@ -46,25 +47,50 @@ static unsigned int align(unsigned int i)
return (i + 3) & ~3u;
}
-void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
- u32 destnode)
+/**
+ * tipc_buf_acquire - creates a TIPC message buffer
+ * @size: message size (including TIPC header)
+ *
+ * Returns a new buffer with data pointers set to the specified size.
+ *
+ * NOTE: Headroom is reserved to allow prepending of a data link header.
+ * There may also be unrequested tailroom present at the buffer's end.
+ */
+struct sk_buff *tipc_buf_acquire(u32 size)
{
+ struct sk_buff *skb;
+ unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;
+
+ skb = alloc_skb_fclone(buf_size, GFP_ATOMIC);
+ if (skb) {
+ skb_reserve(skb, BUF_HEADROOM);
+ skb_put(skb, size);
+ skb->next = NULL;
+ }
+ return skb;
+}
+
+void tipc_msg_init(struct net *net, struct tipc_msg *m, u32 user, u32 type,
+ u32 hsize, u32 destnode)
+{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
memset(m, 0, hsize);
msg_set_version(m);
msg_set_user(m, user);
msg_set_hdr_sz(m, hsize);
msg_set_size(m, hsize);
- msg_set_prevnode(m, tipc_own_addr);
+ msg_set_prevnode(m, tn->own_addr);
msg_set_type(m, type);
if (hsize > SHORT_H_SIZE) {
- msg_set_orignode(m, tipc_own_addr);
+ msg_set_orignode(m, tn->own_addr);
msg_set_destnode(m, destnode);
}
}
-struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,
- uint data_sz, u32 dnode, u32 onode,
- u32 dport, u32 oport, int errcode)
+struct sk_buff *tipc_msg_create(struct net *net, uint user, uint type,
+ uint hdr_sz, uint data_sz, u32 dnode,
+ u32 onode, u32 dport, u32 oport, int errcode)
{
struct tipc_msg *msg;
struct sk_buff *buf;
@@ -74,7 +100,7 @@ struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,
return NULL;
msg = buf_msg(buf);
- tipc_msg_init(msg, user, type, hdr_sz, dnode);
+ tipc_msg_init(net, msg, user, type, hdr_sz, dnode);
msg_set_size(msg, hdr_sz + data_sz);
msg_set_prevnode(msg, onode);
msg_set_origport(msg, oport);
@@ -170,8 +196,8 @@ err:
*
* Returns message data size or errno: -ENOMEM, -EFAULT
*/
-int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
- int dsz, int pktmax, struct sk_buff_head *list)
+int tipc_msg_build(struct net *net, struct tipc_msg *mhdr, struct msghdr *m,
+ int offset, int dsz, int pktmax, struct sk_buff_head *list)
{
int mhsz = msg_hdr_sz(mhdr);
int msz = mhsz + dsz;
@@ -191,6 +217,7 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
skb = tipc_buf_acquire(msz);
if (unlikely(!skb))
return -ENOMEM;
+ skb_orphan(skb);
__skb_queue_tail(list, skb);
skb_copy_to_linear_data(skb, mhdr, mhsz);
pktpos = skb->data + mhsz;
@@ -202,8 +229,8 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
}
/* Prepare reusable fragment header */
- tipc_msg_init(&pkthdr, MSG_FRAGMENTER, FIRST_FRAGMENT,
- INT_H_SIZE, msg_destnode(mhdr));
+ tipc_msg_init(net, &pkthdr, MSG_FRAGMENTER, FIRST_FRAGMENT, INT_H_SIZE,
+ msg_destnode(mhdr));
msg_set_size(&pkthdr, pktmax);
msg_set_fragm_no(&pkthdr, pktno);
@@ -211,6 +238,7 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
skb = tipc_buf_acquire(pktmax);
if (!skb)
return -ENOMEM;
+ skb_orphan(skb);
__skb_queue_tail(list, skb);
pktpos = skb->data;
skb_copy_to_linear_data(skb, &pkthdr, INT_H_SIZE);
@@ -244,6 +272,7 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
rc = -ENOMEM;
goto error;
}
+ skb_orphan(skb);
__skb_queue_tail(list, skb);
msg_set_type(&pkthdr, FRAGMENT);
msg_set_size(&pkthdr, pktsz);
@@ -312,8 +341,8 @@ bool tipc_msg_bundle(struct sk_buff_head *list, struct sk_buff *skb, u32 mtu)
* Replaces buffer if successful
* Returns true if success, otherwise false
*/
-bool tipc_msg_make_bundle(struct sk_buff_head *list, struct sk_buff *skb,
- u32 mtu, u32 dnode)
+bool tipc_msg_make_bundle(struct net *net, struct sk_buff_head *list,
+ struct sk_buff *skb, u32 mtu, u32 dnode)
{
struct sk_buff *bskb;
struct tipc_msg *bmsg;
@@ -336,7 +365,7 @@ bool tipc_msg_make_bundle(struct sk_buff_head *list, struct sk_buff *skb,
skb_trim(bskb, INT_H_SIZE);
bmsg = buf_msg(bskb);
- tipc_msg_init(bmsg, MSG_BUNDLER, 0, INT_H_SIZE, dnode);
+ tipc_msg_init(net, bmsg, MSG_BUNDLER, 0, INT_H_SIZE, dnode);
msg_set_seqno(bmsg, msg_seqno(msg));
msg_set_ack(bmsg, msg_ack(msg));
msg_set_bcast_ack(bmsg, msg_bcast_ack(msg));
@@ -353,8 +382,10 @@ bool tipc_msg_make_bundle(struct sk_buff_head *list, struct sk_buff *skb,
* Consumes buffer if failure
* Returns true if success, otherwise false
*/
-bool tipc_msg_reverse(struct sk_buff *buf, u32 *dnode, int err)
+bool tipc_msg_reverse(struct net *net, struct sk_buff *buf, u32 *dnode,
+ int err)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_msg *msg = buf_msg(buf);
uint imp = msg_importance(msg);
struct tipc_msg ohdr;
@@ -374,7 +405,7 @@ bool tipc_msg_reverse(struct sk_buff *buf, u32 *dnode, int err)
msg_set_errcode(msg, err);
msg_set_origport(msg, msg_destport(&ohdr));
msg_set_destport(msg, msg_origport(&ohdr));
- msg_set_prevnode(msg, tipc_own_addr);
+ msg_set_prevnode(msg, tn->own_addr);
if (!msg_short(msg)) {
msg_set_orignode(msg, msg_destnode(&ohdr));
msg_set_destnode(msg, msg_orignode(&ohdr));
@@ -399,7 +430,7 @@ exit:
* Returns 0 (TIPC_OK) if message ok and we can try again, -TIPC error
* code if message to be rejected
*/
-int tipc_msg_eval(struct sk_buff *buf, u32 *dnode)
+int tipc_msg_eval(struct net *net, struct sk_buff *buf, u32 *dnode)
{
struct tipc_msg *msg = buf_msg(buf);
u32 dport;
@@ -413,8 +444,8 @@ int tipc_msg_eval(struct sk_buff *buf, u32 *dnode)
if (msg_reroute_cnt(msg) > 0)
return -TIPC_ERR_NO_NAME;
- *dnode = addr_domain(msg_lookup_scope(msg));
- dport = tipc_nametbl_translate(msg_nametype(msg),
+ *dnode = addr_domain(net, msg_lookup_scope(msg));
+ dport = tipc_nametbl_translate(net, msg_nametype(msg),
msg_nameinst(msg),
dnode);
if (!dport)
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index d5c83d7ecb47..526ef345b70e 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -37,7 +37,7 @@
#ifndef _TIPC_MSG_H
#define _TIPC_MSG_H
-#include "bearer.h"
+#include <linux/tipc.h>
/*
* Constants and routines used to read and write TIPC payload message headers
@@ -77,11 +77,37 @@
#define TIPC_MEDIA_ADDR_OFFSET 5
+/**
+ * TIPC message buffer code
+ *
+ * TIPC message buffer headroom reserves space for the worst-case
+ * link-level device header (in case the message is sent off-node).
+ *
+ * Note: Headroom should be a multiple of 4 to ensure the TIPC header fields
+ * are word aligned for quicker access
+ */
+#define BUF_HEADROOM LL_MAX_HEADER
+
+struct tipc_skb_cb {
+ void *handle;
+ struct sk_buff *tail;
+ bool deferred;
+ bool wakeup_pending;
+ bool bundling;
+ u16 chain_sz;
+ u16 chain_imp;
+};
+
+#define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0]))
struct tipc_msg {
__be32 hdr[15];
};
+static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
+{
+ return (struct tipc_msg *)skb->data;
+}
static inline u32 msg_word(struct tipc_msg *m, u32 pos)
{
@@ -721,27 +747,21 @@ static inline u32 msg_tot_origport(struct tipc_msg *m)
return msg_origport(m);
}
-bool tipc_msg_reverse(struct sk_buff *buf, u32 *dnode, int err);
-
-int tipc_msg_eval(struct sk_buff *buf, u32 *dnode);
-
-void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
- u32 destnode);
-
-struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz,
- uint data_sz, u32 dnode, u32 onode,
- u32 dport, u32 oport, int errcode);
-
+struct sk_buff *tipc_buf_acquire(u32 size);
+bool tipc_msg_reverse(struct net *net, struct sk_buff *buf, u32 *dnode,
+ int err);
+int tipc_msg_eval(struct net *net, struct sk_buff *buf, u32 *dnode);
+void tipc_msg_init(struct net *net, struct tipc_msg *m, u32 user, u32 type,
+ u32 hsize, u32 destnode);
+struct sk_buff *tipc_msg_create(struct net *net, uint user, uint type,
+ uint hdr_sz, uint data_sz, u32 dnode,
+ u32 onode, u32 dport, u32 oport, int errcode);
int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf);
-
bool tipc_msg_bundle(struct sk_buff_head *list, struct sk_buff *skb, u32 mtu);
-
-bool tipc_msg_make_bundle(struct sk_buff_head *list, struct sk_buff *skb,
- u32 mtu, u32 dnode);
-
-int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset,
- int dsz, int mtu, struct sk_buff_head *list);
-
+bool tipc_msg_make_bundle(struct net *net, struct sk_buff_head *list,
+ struct sk_buff *skb, u32 mtu, u32 dnode);
+int tipc_msg_build(struct net *net, struct tipc_msg *mhdr, struct msghdr *m,
+ int offset, int dsz, int mtu, struct sk_buff_head *list);
struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list);
#endif
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index ba6083dca95b..7f31cd4badc4 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -68,29 +68,32 @@ static void publ_to_item(struct distr_item *i, struct publication *p)
/**
* named_prepare_buf - allocate & initialize a publication message
*/
-static struct sk_buff *named_prepare_buf(u32 type, u32 size, u32 dest)
+static struct sk_buff *named_prepare_buf(struct net *net, u32 type, u32 size,
+ u32 dest)
{
struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE + size);
struct tipc_msg *msg;
if (buf != NULL) {
msg = buf_msg(buf);
- tipc_msg_init(msg, NAME_DISTRIBUTOR, type, INT_H_SIZE, dest);
+ tipc_msg_init(net, msg, NAME_DISTRIBUTOR, type, INT_H_SIZE,
+ dest);
msg_set_size(msg, INT_H_SIZE + size);
}
return buf;
}
-void named_cluster_distribute(struct sk_buff *skb)
+void named_cluster_distribute(struct net *net, struct sk_buff *skb)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *oskb;
struct tipc_node *node;
u32 dnode;
rcu_read_lock();
- list_for_each_entry_rcu(node, &tipc_node_list, list) {
+ list_for_each_entry_rcu(node, &tn->node_list, list) {
dnode = node->addr;
- if (in_own_node(dnode))
+ if (in_own_node(net, dnode))
continue;
if (!tipc_node_active_links(node))
continue;
@@ -98,7 +101,7 @@ void named_cluster_distribute(struct sk_buff *skb)
if (!oskb)
break;
msg_set_destnode(buf_msg(oskb), dnode);
- tipc_link_xmit_skb(oskb, dnode, dnode);
+ tipc_link_xmit_skb(net, oskb, dnode, dnode);
}
rcu_read_unlock();
@@ -108,18 +111,19 @@ void named_cluster_distribute(struct sk_buff *skb)
/**
* tipc_named_publish - tell other nodes about a new publication by this node
*/
-struct sk_buff *tipc_named_publish(struct publication *publ)
+struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *buf;
struct distr_item *item;
list_add_tail_rcu(&publ->local_list,
- &tipc_nametbl->publ_list[publ->scope]);
+ &tn->nametbl->publ_list[publ->scope]);
if (publ->scope == TIPC_NODE_SCOPE)
return NULL;
- buf = named_prepare_buf(PUBLICATION, ITEM_SIZE, 0);
+ buf = named_prepare_buf(net, PUBLICATION, ITEM_SIZE, 0);
if (!buf) {
pr_warn("Publication distribution failure\n");
return NULL;
@@ -133,7 +137,7 @@ struct sk_buff *tipc_named_publish(struct publication *publ)
/**
* tipc_named_withdraw - tell other nodes about a withdrawn publication by this node
*/
-struct sk_buff *tipc_named_withdraw(struct publication *publ)
+struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ)
{
struct sk_buff *buf;
struct distr_item *item;
@@ -143,7 +147,7 @@ struct sk_buff *tipc_named_withdraw(struct publication *publ)
if (publ->scope == TIPC_NODE_SCOPE)
return NULL;
- buf = named_prepare_buf(WITHDRAWAL, ITEM_SIZE, 0);
+ buf = named_prepare_buf(net, WITHDRAWAL, ITEM_SIZE, 0);
if (!buf) {
pr_warn("Withdrawal distribution failure\n");
return NULL;
@@ -160,19 +164,21 @@ struct sk_buff *tipc_named_withdraw(struct publication *publ)
* @dnode: node to be updated
* @pls: linked list of publication items to be packed into buffer chain
*/
-static void named_distribute(struct sk_buff_head *list, u32 dnode,
- struct list_head *pls)
+static void named_distribute(struct net *net, struct sk_buff_head *list,
+ u32 dnode, struct list_head *pls)
{
struct publication *publ;
struct sk_buff *skb = NULL;
struct distr_item *item = NULL;
- uint msg_dsz = (tipc_node_get_mtu(dnode, 0) / ITEM_SIZE) * ITEM_SIZE;
+ uint msg_dsz = (tipc_node_get_mtu(net, dnode, 0) / ITEM_SIZE) *
+ ITEM_SIZE;
uint msg_rem = msg_dsz;
list_for_each_entry(publ, pls, local_list) {
/* Prepare next buffer: */
if (!skb) {
- skb = named_prepare_buf(PUBLICATION, msg_rem, dnode);
+ skb = named_prepare_buf(net, PUBLICATION, msg_rem,
+ dnode);
if (!skb) {
pr_warn("Bulk publication failure\n");
return;
@@ -202,30 +208,32 @@ static void named_distribute(struct sk_buff_head *list, u32 dnode,
/**
* tipc_named_node_up - tell specified node about all publications by this node
*/
-void tipc_named_node_up(u32 dnode)
+void tipc_named_node_up(struct net *net, u32 dnode)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff_head head;
__skb_queue_head_init(&head);
rcu_read_lock();
- named_distribute(&head, dnode,
- &tipc_nametbl->publ_list[TIPC_CLUSTER_SCOPE]);
- named_distribute(&head, dnode,
- &tipc_nametbl->publ_list[TIPC_ZONE_SCOPE]);
+ named_distribute(net, &head, dnode,
+ &tn->nametbl->publ_list[TIPC_CLUSTER_SCOPE]);
+ named_distribute(net, &head, dnode,
+ &tn->nametbl->publ_list[TIPC_ZONE_SCOPE]);
rcu_read_unlock();
- tipc_link_xmit(&head, dnode, dnode);
+ tipc_link_xmit(net, &head, dnode, dnode);
}
-static void tipc_publ_subscribe(struct publication *publ, u32 addr)
+static void tipc_publ_subscribe(struct net *net, struct publication *publ,
+ u32 addr)
{
struct tipc_node *node;
- if (in_own_node(addr))
+ if (in_own_node(net, addr))
return;
- node = tipc_node_find(addr);
+ node = tipc_node_find(net, addr);
if (!node) {
pr_warn("Node subscription rejected, unknown node 0x%x\n",
addr);
@@ -237,11 +245,12 @@ static void tipc_publ_subscribe(struct publication *publ, u32 addr)
tipc_node_unlock(node);
}
-static void tipc_publ_unsubscribe(struct publication *publ, u32 addr)
+static void tipc_publ_unsubscribe(struct net *net, struct publication *publ,
+ u32 addr)
{
struct tipc_node *node;
- node = tipc_node_find(addr);
+ node = tipc_node_find(net, addr);
if (!node)
return;
@@ -256,16 +265,17 @@ static void tipc_publ_unsubscribe(struct publication *publ, u32 addr)
* Invoked for each publication issued by a newly failed node.
* Removes publication structure from name table & deletes it.
*/
-static void tipc_publ_purge(struct publication *publ, u32 addr)
+static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct publication *p;
- spin_lock_bh(&tipc_nametbl_lock);
- p = tipc_nametbl_remove_publ(publ->type, publ->lower,
+ spin_lock_bh(&tn->nametbl_lock);
+ p = tipc_nametbl_remove_publ(net, publ->type, publ->lower,
publ->node, publ->ref, publ->key);
if (p)
- tipc_publ_unsubscribe(p, addr);
- spin_unlock_bh(&tipc_nametbl_lock);
+ tipc_publ_unsubscribe(net, p, addr);
+ spin_unlock_bh(&tn->nametbl_lock);
if (p != publ) {
pr_err("Unable to remove publication from failed node\n"
@@ -277,12 +287,12 @@ static void tipc_publ_purge(struct publication *publ, u32 addr)
kfree_rcu(p, rcu);
}
-void tipc_publ_notify(struct list_head *nsub_list, u32 addr)
+void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr)
{
struct publication *publ, *tmp;
list_for_each_entry_safe(publ, tmp, nsub_list, nodesub_list)
- tipc_publ_purge(publ, addr);
+ tipc_publ_purge(net, publ, addr);
}
/**
@@ -292,25 +302,28 @@ void tipc_publ_notify(struct list_head *nsub_list, u32 addr)
* tipc_nametbl_lock must be held.
* Returns the publication item if successful, otherwise NULL.
*/
-static bool tipc_update_nametbl(struct distr_item *i, u32 node, u32 dtype)
+static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
+ u32 node, u32 dtype)
{
struct publication *publ = NULL;
if (dtype == PUBLICATION) {
- publ = tipc_nametbl_insert_publ(ntohl(i->type), ntohl(i->lower),
+ publ = tipc_nametbl_insert_publ(net, ntohl(i->type),
+ ntohl(i->lower),
ntohl(i->upper),
TIPC_CLUSTER_SCOPE, node,
ntohl(i->ref), ntohl(i->key));
if (publ) {
- tipc_publ_subscribe(publ, node);
+ tipc_publ_subscribe(net, publ, node);
return true;
}
} else if (dtype == WITHDRAWAL) {
- publ = tipc_nametbl_remove_publ(ntohl(i->type), ntohl(i->lower),
+ publ = tipc_nametbl_remove_publ(net, ntohl(i->type),
+ ntohl(i->lower),
node, ntohl(i->ref),
ntohl(i->key));
if (publ) {
- tipc_publ_unsubscribe(publ, node);
+ tipc_publ_unsubscribe(net, publ, node);
kfree_rcu(publ, rcu);
return true;
}
@@ -343,7 +356,7 @@ static void tipc_named_add_backlog(struct distr_item *i, u32 type, u32 node)
* tipc_named_process_backlog - try to process any pending name table updates
* from the network.
*/
-void tipc_named_process_backlog(void)
+void tipc_named_process_backlog(struct net *net)
{
struct distr_queue_item *e, *tmp;
char addr[16];
@@ -351,7 +364,7 @@ void tipc_named_process_backlog(void)
list_for_each_entry_safe(e, tmp, &tipc_dist_queue, next) {
if (time_after(e->expires, now)) {
- if (!tipc_update_nametbl(&e->i, e->node, e->dtype))
+ if (!tipc_update_nametbl(net, &e->i, e->node, e->dtype))
continue;
} else {
tipc_addr_string_fill(addr, e->node);
@@ -369,21 +382,22 @@ void tipc_named_process_backlog(void)
/**
* tipc_named_rcv - process name table update message sent by another node
*/
-void tipc_named_rcv(struct sk_buff *buf)
+void tipc_named_rcv(struct net *net, struct sk_buff *buf)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_msg *msg = buf_msg(buf);
struct distr_item *item = (struct distr_item *)msg_data(msg);
u32 count = msg_data_sz(msg) / ITEM_SIZE;
u32 node = msg_orignode(msg);
- spin_lock_bh(&tipc_nametbl_lock);
+ spin_lock_bh(&tn->nametbl_lock);
while (count--) {
- if (!tipc_update_nametbl(item, node, msg_type(msg)))
+ if (!tipc_update_nametbl(net, item, node, msg_type(msg)))
tipc_named_add_backlog(item, msg_type(msg), node);
item++;
}
- tipc_named_process_backlog();
- spin_unlock_bh(&tipc_nametbl_lock);
+ tipc_named_process_backlog(net);
+ spin_unlock_bh(&tn->nametbl_lock);
kfree_skb(buf);
}
@@ -394,17 +408,18 @@ void tipc_named_rcv(struct sk_buff *buf)
* All name table entries published by this node are updated to reflect
* the node's new network address.
*/
-void tipc_named_reinit(void)
+void tipc_named_reinit(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct publication *publ;
int scope;
- spin_lock_bh(&tipc_nametbl_lock);
+ spin_lock_bh(&tn->nametbl_lock);
for (scope = TIPC_ZONE_SCOPE; scope <= TIPC_NODE_SCOPE; scope++)
- list_for_each_entry_rcu(publ, &tipc_nametbl->publ_list[scope],
+ list_for_each_entry_rcu(publ, &tn->nametbl->publ_list[scope],
local_list)
- publ->node = tipc_own_addr;
+ publ->node = tn->own_addr;
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
}
diff --git a/net/tipc/name_distr.h b/net/tipc/name_distr.h
index cef55cedcfb2..5ec10b59527b 100644
--- a/net/tipc/name_distr.h
+++ b/net/tipc/name_distr.h
@@ -67,13 +67,13 @@ struct distr_item {
__be32 key;
};
-struct sk_buff *tipc_named_publish(struct publication *publ);
-struct sk_buff *tipc_named_withdraw(struct publication *publ);
-void named_cluster_distribute(struct sk_buff *buf);
-void tipc_named_node_up(u32 dnode);
-void tipc_named_rcv(struct sk_buff *buf);
-void tipc_named_reinit(void);
-void tipc_named_process_backlog(void);
-void tipc_publ_notify(struct list_head *nsub_list, u32 addr);
+struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ);
+struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ);
+void named_cluster_distribute(struct net *net, struct sk_buff *buf);
+void tipc_named_node_up(struct net *net, u32 dnode);
+void tipc_named_rcv(struct net *net, struct sk_buff *buf);
+void tipc_named_reinit(struct net *net);
+void tipc_named_process_backlog(struct net *net);
+void tipc_publ_notify(struct net *net, struct list_head *nsub_list, u32 addr);
#endif
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index c8df0223371a..ce09b863528c 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -34,11 +34,13 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#include <net/sock.h>
#include "core.h"
#include "config.h"
#include "name_table.h"
#include "name_distr.h"
#include "subscr.h"
+#include "bcast.h"
#define TIPC_NAMETBL_SIZE 1024 /* must be a power of 2 */
@@ -105,9 +107,6 @@ struct name_seq {
struct rcu_head rcu;
};
-struct name_table *tipc_nametbl;
-DEFINE_SPINLOCK(tipc_nametbl_lock);
-
static int hash(int x)
{
return x & (TIPC_NAMETBL_SIZE - 1);
@@ -228,9 +227,11 @@ static u32 nameseq_locate_subseq(struct name_seq *nseq, u32 instance)
/**
* tipc_nameseq_insert_publ
*/
-static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
- u32 type, u32 lower, u32 upper,
- u32 scope, u32 node, u32 port, u32 key)
+static struct publication *tipc_nameseq_insert_publ(struct net *net,
+ struct name_seq *nseq,
+ u32 type, u32 lower,
+ u32 upper, u32 scope,
+ u32 node, u32 port, u32 key)
{
struct tipc_subscription *s;
struct tipc_subscription *st;
@@ -315,12 +316,12 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
list_add(&publ->zone_list, &info->zone_list);
info->zone_list_size++;
- if (in_own_cluster(node)) {
+ if (in_own_cluster(net, node)) {
list_add(&publ->cluster_list, &info->cluster_list);
info->cluster_list_size++;
}
- if (in_own_node(node)) {
+ if (in_own_node(net, node)) {
list_add(&publ->node_list, &info->node_list);
info->node_list_size++;
}
@@ -349,8 +350,10 @@ static struct publication *tipc_nameseq_insert_publ(struct name_seq *nseq,
* A failed withdraw request simply returns a failure indication and lets the
* caller issue any error or warning messages associated with such a problem.
*/
-static struct publication *tipc_nameseq_remove_publ(struct name_seq *nseq, u32 inst,
- u32 node, u32 ref, u32 key)
+static struct publication *tipc_nameseq_remove_publ(struct net *net,
+ struct name_seq *nseq,
+ u32 inst, u32 node,
+ u32 ref, u32 key)
{
struct publication *publ;
struct sub_seq *sseq = nameseq_find_subseq(nseq, inst);
@@ -378,13 +381,13 @@ found:
info->zone_list_size--;
/* Remove publication from cluster scope list, if present */
- if (in_own_cluster(node)) {
+ if (in_own_cluster(net, node)) {
list_del(&publ->cluster_list);
info->cluster_list_size--;
}
/* Remove publication from node scope list, if present */
- if (in_own_node(node)) {
+ if (in_own_node(net, node)) {
list_del(&publ->node_list);
info->node_list_size--;
}
@@ -447,12 +450,13 @@ static void tipc_nameseq_subscribe(struct name_seq *nseq,
}
}
-static struct name_seq *nametbl_find_seq(u32 type)
+static struct name_seq *nametbl_find_seq(struct net *net, u32 type)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct hlist_head *seq_head;
struct name_seq *ns;
- seq_head = &tipc_nametbl->seq_hlist[hash(type)];
+ seq_head = &tn->nametbl->seq_hlist[hash(type)];
hlist_for_each_entry_rcu(ns, seq_head, ns_list) {
if (ns->type == type)
return ns;
@@ -461,11 +465,13 @@ static struct name_seq *nametbl_find_seq(u32 type)
return NULL;
};
-struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
- u32 scope, u32 node, u32 port, u32 key)
+struct publication *tipc_nametbl_insert_publ(struct net *net, u32 type,
+ u32 lower, u32 upper, u32 scope,
+ u32 node, u32 port, u32 key)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct publication *publ;
- struct name_seq *seq = nametbl_find_seq(type);
+ struct name_seq *seq = nametbl_find_seq(net, type);
int index = hash(type);
if ((scope < TIPC_ZONE_SCOPE) || (scope > TIPC_NODE_SCOPE) ||
@@ -476,29 +482,29 @@ struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
}
if (!seq)
- seq = tipc_nameseq_create(type,
- &tipc_nametbl->seq_hlist[index]);
+ seq = tipc_nameseq_create(type, &tn->nametbl->seq_hlist[index]);
if (!seq)
return NULL;
spin_lock_bh(&seq->lock);
- publ = tipc_nameseq_insert_publ(seq, type, lower, upper,
+ publ = tipc_nameseq_insert_publ(net, seq, type, lower, upper,
scope, node, port, key);
spin_unlock_bh(&seq->lock);
return publ;
}
-struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
- u32 node, u32 ref, u32 key)
+struct publication *tipc_nametbl_remove_publ(struct net *net, u32 type,
+ u32 lower, u32 node, u32 ref,
+ u32 key)
{
struct publication *publ;
- struct name_seq *seq = nametbl_find_seq(type);
+ struct name_seq *seq = nametbl_find_seq(net, type);
if (!seq)
return NULL;
spin_lock_bh(&seq->lock);
- publ = tipc_nameseq_remove_publ(seq, lower, node, ref, key);
+ publ = tipc_nameseq_remove_publ(net, seq, lower, node, ref, key);
if (!seq->first_free && list_empty(&seq->subscriptions)) {
hlist_del_init_rcu(&seq->ns_list);
kfree(seq->sseqs);
@@ -523,8 +529,10 @@ struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
* - if name translation is attempted and fails, sets 'destnode' to 0
* and returns 0
*/
-u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *destnode)
+u32 tipc_nametbl_translate(struct net *net, u32 type, u32 instance,
+ u32 *destnode)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sub_seq *sseq;
struct name_info *info;
struct publication *publ;
@@ -532,11 +540,11 @@ u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *destnode)
u32 ref = 0;
u32 node = 0;
- if (!tipc_in_scope(*destnode, tipc_own_addr))
+ if (!tipc_in_scope(*destnode, tn->own_addr))
return 0;
rcu_read_lock();
- seq = nametbl_find_seq(type);
+ seq = nametbl_find_seq(net, type);
if (unlikely(!seq))
goto not_found;
spin_lock_bh(&seq->lock);
@@ -569,13 +577,13 @@ u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *destnode)
}
/* Round-Robin Algorithm */
- else if (*destnode == tipc_own_addr) {
+ else if (*destnode == tn->own_addr) {
if (list_empty(&info->node_list))
goto no_match;
publ = list_first_entry(&info->node_list, struct publication,
node_list);
list_move_tail(&publ->node_list, &info->node_list);
- } else if (in_own_cluster_exact(*destnode)) {
+ } else if (in_own_cluster_exact(net, *destnode)) {
if (list_empty(&info->cluster_list))
goto no_match;
publ = list_first_entry(&info->cluster_list, struct publication,
@@ -609,8 +617,8 @@ not_found:
*
* Returns non-zero if any off-node ports overlap
*/
-int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
- struct tipc_port_list *dports)
+int tipc_nametbl_mc_translate(struct net *net, u32 type, u32 lower, u32 upper,
+ u32 limit, struct tipc_port_list *dports)
{
struct name_seq *seq;
struct sub_seq *sseq;
@@ -619,7 +627,7 @@ int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
int res = 0;
rcu_read_lock();
- seq = nametbl_find_seq(type);
+ seq = nametbl_find_seq(net, type);
if (!seq)
goto exit;
@@ -650,50 +658,55 @@ exit:
/*
* tipc_nametbl_publish - add name publication to network name tables
*/
-struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
- u32 scope, u32 port_ref, u32 key)
+struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower,
+ u32 upper, u32 scope, u32 port_ref,
+ u32 key)
{
struct publication *publ;
struct sk_buff *buf = NULL;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
- spin_lock_bh(&tipc_nametbl_lock);
- if (tipc_nametbl->local_publ_count >= TIPC_MAX_PUBLICATIONS) {
+ spin_lock_bh(&tn->nametbl_lock);
+ if (tn->nametbl->local_publ_count >= TIPC_MAX_PUBLICATIONS) {
pr_warn("Publication failed, local publication limit reached (%u)\n",
TIPC_MAX_PUBLICATIONS);
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
return NULL;
}
- publ = tipc_nametbl_insert_publ(type, lower, upper, scope,
- tipc_own_addr, port_ref, key);
+ publ = tipc_nametbl_insert_publ(net, type, lower, upper, scope,
+ tn->own_addr, port_ref, key);
if (likely(publ)) {
- tipc_nametbl->local_publ_count++;
- buf = tipc_named_publish(publ);
+ tn->nametbl->local_publ_count++;
+ buf = tipc_named_publish(net, publ);
/* Any pending external events? */
- tipc_named_process_backlog();
+ tipc_named_process_backlog(net);
}
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
if (buf)
- named_cluster_distribute(buf);
+ named_cluster_distribute(net, buf);
return publ;
}
/**
* tipc_nametbl_withdraw - withdraw name publication from network name tables
*/
-int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
+int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref,
+ u32 key)
{
struct publication *publ;
struct sk_buff *skb = NULL;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
- spin_lock_bh(&tipc_nametbl_lock);
- publ = tipc_nametbl_remove_publ(type, lower, tipc_own_addr, ref, key);
+ spin_lock_bh(&tn->nametbl_lock);
+ publ = tipc_nametbl_remove_publ(net, type, lower, tn->own_addr,
+ ref, key);
if (likely(publ)) {
- tipc_nametbl->local_publ_count--;
- skb = tipc_named_withdraw(publ);
+ tn->nametbl->local_publ_count--;
+ skb = tipc_named_withdraw(net, publ);
/* Any pending external events? */
- tipc_named_process_backlog();
+ tipc_named_process_backlog(net);
list_del_init(&publ->pport_list);
kfree_rcu(publ, rcu);
} else {
@@ -701,10 +714,10 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
"(type=%u, lower=%u, ref=%u, key=%u)\n",
type, lower, ref, key);
}
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
if (skb) {
- named_cluster_distribute(skb);
+ named_cluster_distribute(net, skb);
return 1;
}
return 0;
@@ -715,15 +728,15 @@ int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key)
*/
void tipc_nametbl_subscribe(struct tipc_subscription *s)
{
+ struct tipc_net *tn = net_generic(s->net, tipc_net_id);
u32 type = s->seq.type;
int index = hash(type);
struct name_seq *seq;
- spin_lock_bh(&tipc_nametbl_lock);
- seq = nametbl_find_seq(type);
+ spin_lock_bh(&tn->nametbl_lock);
+ seq = nametbl_find_seq(s->net, type);
if (!seq)
- seq = tipc_nameseq_create(type,
- &tipc_nametbl->seq_hlist[index]);
+ seq = tipc_nameseq_create(type, &tn->nametbl->seq_hlist[index]);
if (seq) {
spin_lock_bh(&seq->lock);
tipc_nameseq_subscribe(seq, s);
@@ -732,7 +745,7 @@ void tipc_nametbl_subscribe(struct tipc_subscription *s)
pr_warn("Failed to create subscription for {%u,%u,%u}\n",
s->seq.type, s->seq.lower, s->seq.upper);
}
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
}
/**
@@ -740,10 +753,11 @@ void tipc_nametbl_subscribe(struct tipc_subscription *s)
*/
void tipc_nametbl_unsubscribe(struct tipc_subscription *s)
{
+ struct tipc_net *tn = net_generic(s->net, tipc_net_id);
struct name_seq *seq;
- spin_lock_bh(&tipc_nametbl_lock);
- seq = nametbl_find_seq(s->seq.type);
+ spin_lock_bh(&tn->nametbl_lock);
+ seq = nametbl_find_seq(s->net, s->seq.type);
if (seq != NULL) {
spin_lock_bh(&seq->lock);
list_del_init(&s->nameseq_list);
@@ -756,7 +770,7 @@ void tipc_nametbl_unsubscribe(struct tipc_subscription *s)
spin_unlock_bh(&seq->lock);
}
}
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
}
/**
@@ -858,9 +872,10 @@ static int nametbl_header(char *buf, int len, u32 depth)
/**
* nametbl_list - print specified name table contents into the given buffer
*/
-static int nametbl_list(char *buf, int len, u32 depth_info,
+static int nametbl_list(struct net *net, char *buf, int len, u32 depth_info,
u32 type, u32 lowbound, u32 upbound)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct hlist_head *seq_head;
struct name_seq *seq;
int all_types;
@@ -880,7 +895,7 @@ static int nametbl_list(char *buf, int len, u32 depth_info,
lowbound = 0;
upbound = ~0;
for (i = 0; i < TIPC_NAMETBL_SIZE; i++) {
- seq_head = &tipc_nametbl->seq_hlist[i];
+ seq_head = &tn->nametbl->seq_hlist[i];
hlist_for_each_entry_rcu(seq, seq_head, ns_list) {
ret += nameseq_list(seq, buf + ret, len - ret,
depth, seq->type,
@@ -896,7 +911,7 @@ static int nametbl_list(char *buf, int len, u32 depth_info,
}
ret += nametbl_header(buf + ret, len - ret, depth);
i = hash(type);
- seq_head = &tipc_nametbl->seq_hlist[i];
+ seq_head = &tn->nametbl->seq_hlist[i];
hlist_for_each_entry_rcu(seq, seq_head, ns_list) {
if (seq->type == type) {
ret += nameseq_list(seq, buf + ret, len - ret,
@@ -909,7 +924,8 @@ static int nametbl_list(char *buf, int len, u32 depth_info,
return ret;
}
-struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space)
+struct sk_buff *tipc_nametbl_get(struct net *net, const void *req_tlv_area,
+ int req_tlv_space)
{
struct sk_buff *buf;
struct tipc_name_table_query *argv;
@@ -930,7 +946,7 @@ struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space)
pb_len = ULTRA_STRING_MAX_LEN;
argv = (struct tipc_name_table_query *)TLV_DATA(req_tlv_area);
rcu_read_lock();
- str_len = nametbl_list(pb, pb_len, ntohl(argv->depth),
+ str_len = nametbl_list(net, pb, pb_len, ntohl(argv->depth),
ntohl(argv->type),
ntohl(argv->lowbound), ntohl(argv->upbound));
rcu_read_unlock();
@@ -941,8 +957,10 @@ struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space)
return buf;
}
-int tipc_nametbl_init(void)
+int tipc_nametbl_init(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct name_table *tipc_nametbl;
int i;
tipc_nametbl = kzalloc(sizeof(*tipc_nametbl), GFP_ATOMIC);
@@ -955,6 +973,8 @@ int tipc_nametbl_init(void)
INIT_LIST_HEAD(&tipc_nametbl->publ_list[TIPC_ZONE_SCOPE]);
INIT_LIST_HEAD(&tipc_nametbl->publ_list[TIPC_CLUSTER_SCOPE]);
INIT_LIST_HEAD(&tipc_nametbl->publ_list[TIPC_NODE_SCOPE]);
+ tn->nametbl = tipc_nametbl;
+ spin_lock_init(&tn->nametbl_lock);
return 0;
}
@@ -963,7 +983,7 @@ int tipc_nametbl_init(void)
*
* tipc_nametbl_lock must be held when calling this function
*/
-static void tipc_purge_publications(struct name_seq *seq)
+static void tipc_purge_publications(struct net *net, struct name_seq *seq)
{
struct publication *publ, *safe;
struct sub_seq *sseq;
@@ -973,8 +993,8 @@ static void tipc_purge_publications(struct name_seq *seq)
sseq = seq->sseqs;
info = sseq->info;
list_for_each_entry_safe(publ, safe, &info->zone_list, zone_list) {
- tipc_nametbl_remove_publ(publ->type, publ->lower, publ->node,
- publ->ref, publ->key);
+ tipc_nametbl_remove_publ(net, publ->type, publ->lower,
+ publ->node, publ->ref, publ->key);
kfree_rcu(publ, rcu);
}
hlist_del_init_rcu(&seq->ns_list);
@@ -984,25 +1004,27 @@ static void tipc_purge_publications(struct name_seq *seq)
kfree_rcu(seq, rcu);
}
-void tipc_nametbl_stop(void)
+void tipc_nametbl_stop(struct net *net)
{
u32 i;
struct name_seq *seq;
struct hlist_head *seq_head;
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct name_table *tipc_nametbl = tn->nametbl;
/* Verify name table is empty and purge any lingering
* publications, then release the name table
*/
- spin_lock_bh(&tipc_nametbl_lock);
+ spin_lock_bh(&tn->nametbl_lock);
for (i = 0; i < TIPC_NAMETBL_SIZE; i++) {
if (hlist_empty(&tipc_nametbl->seq_hlist[i]))
continue;
seq_head = &tipc_nametbl->seq_hlist[i];
hlist_for_each_entry_rcu(seq, seq_head, ns_list) {
- tipc_purge_publications(seq);
+ tipc_purge_publications(net, seq);
}
}
- spin_unlock_bh(&tipc_nametbl_lock);
+ spin_unlock_bh(&tn->nametbl_lock);
synchronize_net();
kfree(tipc_nametbl);
@@ -1106,9 +1128,10 @@ static int __tipc_nl_subseq_list(struct tipc_nl_msg *msg, struct name_seq *seq,
return 0;
}
-static int __tipc_nl_seq_list(struct tipc_nl_msg *msg, u32 *last_type,
- u32 *last_lower, u32 *last_publ)
+static int tipc_nl_seq_list(struct net *net, struct tipc_nl_msg *msg,
+ u32 *last_type, u32 *last_lower, u32 *last_publ)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct hlist_head *seq_head;
struct name_seq *seq = NULL;
int err;
@@ -1120,10 +1143,10 @@ static int __tipc_nl_seq_list(struct tipc_nl_msg *msg, u32 *last_type,
i = 0;
for (; i < TIPC_NAMETBL_SIZE; i++) {
- seq_head = &tipc_nametbl->seq_hlist[i];
+ seq_head = &tn->nametbl->seq_hlist[i];
if (*last_type) {
- seq = nametbl_find_seq(*last_type);
+ seq = nametbl_find_seq(net, *last_type);
if (!seq)
return -EPIPE;
} else {
@@ -1157,6 +1180,7 @@ int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb)
u32 last_type = cb->args[0];
u32 last_lower = cb->args[1];
u32 last_publ = cb->args[2];
+ struct net *net = sock_net(skb->sk);
struct tipc_nl_msg msg;
if (done)
@@ -1167,7 +1191,7 @@ int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb)
msg.seq = cb->nlh->nlmsg_seq;
rcu_read_lock();
- err = __tipc_nl_seq_list(&msg, &last_type, &last_lower, &last_publ);
+ err = tipc_nl_seq_list(net, &msg, &last_type, &last_lower, &last_publ);
if (!err) {
done = 1;
} else if (err != -EMSGSIZE) {
diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h
index 5f0dee92010d..f67b3d8d4b2f 100644
--- a/net/tipc/name_table.h
+++ b/net/tipc/name_table.h
@@ -95,26 +95,27 @@ struct name_table {
u32 local_publ_count;
};
-extern spinlock_t tipc_nametbl_lock;
-extern struct name_table *tipc_nametbl;
-
int tipc_nl_name_table_dump(struct sk_buff *skb, struct netlink_callback *cb);
-struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space);
-u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *node);
-int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
- struct tipc_port_list *dports);
-struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
- u32 scope, u32 port_ref, u32 key);
-int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key);
-struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
- u32 scope, u32 node, u32 ref,
+struct sk_buff *tipc_nametbl_get(struct net *net, const void *req_tlv_area,
+ int req_tlv_space);
+u32 tipc_nametbl_translate(struct net *net, u32 type, u32 instance, u32 *node);
+int tipc_nametbl_mc_translate(struct net *net, u32 type, u32 lower, u32 upper,
+ u32 limit, struct tipc_port_list *dports);
+struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower,
+ u32 upper, u32 scope, u32 port_ref,
+ u32 key);
+int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref,
+ u32 key);
+struct publication *tipc_nametbl_insert_publ(struct net *net, u32 type,
+ u32 lower, u32 upper, u32 scope,
+ u32 node, u32 ref, u32 key);
+struct publication *tipc_nametbl_remove_publ(struct net *net, u32 type,
+ u32 lower, u32 node, u32 ref,
u32 key);
-struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, u32 node,
- u32 ref, u32 key);
void tipc_nametbl_subscribe(struct tipc_subscription *s);
void tipc_nametbl_unsubscribe(struct tipc_subscription *s);
-int tipc_nametbl_init(void);
-void tipc_nametbl_stop(void);
+int tipc_nametbl_init(struct net *net);
+void tipc_nametbl_stop(struct net *net);
#endif
diff --git a/net/tipc/net.c b/net/tipc/net.c
index cf13df3cde8f..263267e0e7fe 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -41,6 +41,7 @@
#include "socket.h"
#include "node.h"
#include "config.h"
+#include "bcast.h"
static const struct nla_policy tipc_nl_net_policy[TIPC_NLA_NET_MAX + 1] = {
[TIPC_NLA_NET_UNSPEC] = { .type = NLA_UNSPEC },
@@ -108,44 +109,50 @@ static const struct nla_policy tipc_nl_net_policy[TIPC_NLA_NET_MAX + 1] = {
* - A local spin_lock protecting the queue of subscriber events.
*/
-int tipc_net_start(u32 addr)
+int tipc_net_start(struct net *net, u32 addr)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
char addr_string[16];
int res;
- tipc_own_addr = addr;
- tipc_named_reinit();
- tipc_sk_reinit();
- res = tipc_bclink_init();
+ tn->own_addr = addr;
+ tipc_named_reinit(net);
+ tipc_sk_reinit(net);
+ res = tipc_bclink_init(net);
if (res)
return res;
- tipc_nametbl_publish(TIPC_CFG_SRV, tipc_own_addr, tipc_own_addr,
- TIPC_ZONE_SCOPE, 0, tipc_own_addr);
+ tipc_nametbl_publish(net, TIPC_CFG_SRV, tn->own_addr, tn->own_addr,
+ TIPC_ZONE_SCOPE, 0, tn->own_addr);
pr_info("Started in network mode\n");
pr_info("Own node address %s, network identity %u\n",
- tipc_addr_string_fill(addr_string, tipc_own_addr), tipc_net_id);
+ tipc_addr_string_fill(addr_string, tn->own_addr),
+ tn->net_id);
return 0;
}
-void tipc_net_stop(void)
+void tipc_net_stop(struct net *net)
{
- if (!tipc_own_addr)
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
+ if (!tn->own_addr)
return;
- tipc_nametbl_withdraw(TIPC_CFG_SRV, tipc_own_addr, 0, tipc_own_addr);
+ tipc_nametbl_withdraw(net, TIPC_CFG_SRV, tn->own_addr, 0,
+ tn->own_addr);
rtnl_lock();
- tipc_bearer_stop();
- tipc_bclink_stop();
- tipc_node_stop();
+ tipc_bearer_stop(net);
+ tipc_bclink_stop(net);
+ tipc_node_stop(net);
rtnl_unlock();
pr_info("Left network mode\n");
}
-static int __tipc_nl_add_net(struct tipc_nl_msg *msg)
+static int __tipc_nl_add_net(struct net *net, struct tipc_nl_msg *msg)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
void *hdr;
struct nlattr *attrs;
@@ -158,7 +165,7 @@ static int __tipc_nl_add_net(struct tipc_nl_msg *msg)
if (!attrs)
goto msg_full;
- if (nla_put_u32(msg->skb, TIPC_NLA_NET_ID, tipc_net_id))
+ if (nla_put_u32(msg->skb, TIPC_NLA_NET_ID, tn->net_id))
goto attr_msg_full;
nla_nest_end(msg->skb, attrs);
@@ -176,6 +183,7 @@ msg_full:
int tipc_nl_net_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct net *net = sock_net(skb->sk);
int err;
int done = cb->args[0];
struct tipc_nl_msg msg;
@@ -187,7 +195,7 @@ int tipc_nl_net_dump(struct sk_buff *skb, struct netlink_callback *cb)
msg.portid = NETLINK_CB(cb->skb).portid;
msg.seq = cb->nlh->nlmsg_seq;
- err = __tipc_nl_add_net(&msg);
+ err = __tipc_nl_add_net(net, &msg);
if (err)
goto out;
@@ -200,8 +208,10 @@ out:
int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
{
- int err;
+ struct net *net = genl_info_net(info);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct nlattr *attrs[TIPC_NLA_NET_MAX + 1];
+ int err;
if (!info->attrs[TIPC_NLA_NET])
return -EINVAL;
@@ -216,21 +226,21 @@ int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
u32 val;
/* Can't change net id once TIPC has joined a network */
- if (tipc_own_addr)
+ if (tn->own_addr)
return -EPERM;
val = nla_get_u32(attrs[TIPC_NLA_NET_ID]);
if (val < 1 || val > 9999)
return -EINVAL;
- tipc_net_id = val;
+ tn->net_id = val;
}
if (attrs[TIPC_NLA_NET_ADDR]) {
u32 addr;
/* Can't change net addr once TIPC has joined a network */
- if (tipc_own_addr)
+ if (tn->own_addr)
return -EPERM;
addr = nla_get_u32(attrs[TIPC_NLA_NET_ADDR]);
@@ -238,7 +248,7 @@ int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
rtnl_lock();
- tipc_net_start(addr);
+ tipc_net_start(net, addr);
rtnl_unlock();
}
diff --git a/net/tipc/net.h b/net/tipc/net.h
index a81c1b9eb150..77a7a118911d 100644
--- a/net/tipc/net.h
+++ b/net/tipc/net.h
@@ -39,9 +39,9 @@
#include <net/genetlink.h>
-int tipc_net_start(u32 addr);
+int tipc_net_start(struct net *net, u32 addr);
-void tipc_net_stop(void);
+void tipc_net_stop(struct net *net);
int tipc_nl_net_dump(struct sk_buff *skb, struct netlink_callback *cb);
int tipc_nl_net_set(struct sk_buff *skb, struct genl_info *info);
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index b891e3905bc4..fe0f5134ce15 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -46,6 +46,7 @@
static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
{
+ struct net *net = genl_info_net(info);
struct sk_buff *rep_buf;
struct nlmsghdr *rep_nlh;
struct nlmsghdr *req_nlh = info->nlhdr;
@@ -53,22 +54,24 @@ static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
int hdr_space = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
u16 cmd;
- if ((req_userhdr->cmd & 0xC000) && (!netlink_capable(skb, CAP_NET_ADMIN)))
+ if ((req_userhdr->cmd & 0xC000) &&
+ (!netlink_net_capable(skb, CAP_NET_ADMIN)))
cmd = TIPC_CMD_NOT_NET_ADMIN;
else
cmd = req_userhdr->cmd;
- rep_buf = tipc_cfg_do_cmd(req_userhdr->dest, cmd,
- nlmsg_data(req_nlh) + GENL_HDRLEN + TIPC_GENL_HDRLEN,
- nlmsg_attrlen(req_nlh, GENL_HDRLEN + TIPC_GENL_HDRLEN),
- hdr_space);
+ rep_buf = tipc_cfg_do_cmd(net, req_userhdr->dest, cmd,
+ nlmsg_data(req_nlh) + GENL_HDRLEN +
+ TIPC_GENL_HDRLEN,
+ nlmsg_attrlen(req_nlh, GENL_HDRLEN +
+ TIPC_GENL_HDRLEN), hdr_space);
if (rep_buf) {
skb_push(rep_buf, hdr_space);
rep_nlh = nlmsg_hdr(rep_buf);
memcpy(rep_nlh, req_nlh, hdr_space);
rep_nlh->nlmsg_len = rep_buf->len;
- genlmsg_unicast(&init_net, rep_buf, NETLINK_CB(skb).portid);
+ genlmsg_unicast(net, rep_buf, NETLINK_CB(skb).portid);
}
return 0;
@@ -93,6 +96,7 @@ static struct genl_family tipc_genl_family = {
.version = TIPC_GENL_VERSION,
.hdrsize = TIPC_GENL_HDRLEN,
.maxattr = 0,
+ .netnsok = true,
};
/* Legacy ASCII API */
@@ -112,6 +116,7 @@ struct genl_family tipc_genl_v2_family = {
.version = TIPC_GENL_V2_VERSION,
.hdrsize = 0,
.maxattr = TIPC_NLA_MAX,
+ .netnsok = true,
};
static const struct genl_ops tipc_genl_v2_ops[] = {
diff --git a/net/tipc/netlink.h b/net/tipc/netlink.h
index 1425c6869de0..ae2f2d923a15 100644
--- a/net/tipc/netlink.h
+++ b/net/tipc/netlink.h
@@ -45,4 +45,7 @@ struct tipc_nl_msg {
u32 seq;
};
+int tipc_netlink_start(void);
+void tipc_netlink_stop(void);
+
#endif
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 8d353ec77a66..b1eb0927bac8 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -40,17 +40,9 @@
#include "name_distr.h"
#include "socket.h"
-#define NODE_HTABLE_SIZE 512
-
static void node_lost_contact(struct tipc_node *n_ptr);
static void node_established_contact(struct tipc_node *n_ptr);
-static struct hlist_head node_htable[NODE_HTABLE_SIZE];
-LIST_HEAD(tipc_node_list);
-static u32 tipc_num_nodes;
-static u32 tipc_num_links;
-static DEFINE_SPINLOCK(node_list_lock);
-
struct tipc_sock_conn {
u32 port;
u32 peer_port;
@@ -78,15 +70,17 @@ static unsigned int tipc_hashfn(u32 addr)
/*
* tipc_node_find - locate specified node object, if it exists
*/
-struct tipc_node *tipc_node_find(u32 addr)
+struct tipc_node *tipc_node_find(struct net *net, u32 addr)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_node *node;
- if (unlikely(!in_own_cluster_exact(addr)))
+ if (unlikely(!in_own_cluster_exact(net, addr)))
return NULL;
rcu_read_lock();
- hlist_for_each_entry_rcu(node, &node_htable[tipc_hashfn(addr)], hash) {
+ hlist_for_each_entry_rcu(node, &tn->node_htable[tipc_hashfn(addr)],
+ hash) {
if (node->addr == addr) {
rcu_read_unlock();
return node;
@@ -96,20 +90,22 @@ struct tipc_node *tipc_node_find(u32 addr)
return NULL;
}
-struct tipc_node *tipc_node_create(u32 addr)
+struct tipc_node *tipc_node_create(struct net *net, u32 addr)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_node *n_ptr, *temp_node;
- spin_lock_bh(&node_list_lock);
+ spin_lock_bh(&tn->node_list_lock);
n_ptr = kzalloc(sizeof(*n_ptr), GFP_ATOMIC);
if (!n_ptr) {
- spin_unlock_bh(&node_list_lock);
+ spin_unlock_bh(&tn->node_list_lock);
pr_warn("Node creation failed, no memory\n");
return NULL;
}
n_ptr->addr = addr;
+ n_ptr->net = net;
spin_lock_init(&n_ptr->lock);
INIT_HLIST_NODE(&n_ptr->hash);
INIT_LIST_HEAD(&n_ptr->list);
@@ -118,9 +114,9 @@ struct tipc_node *tipc_node_create(u32 addr)
skb_queue_head_init(&n_ptr->waiting_sks);
__skb_queue_head_init(&n_ptr->bclink.deferred_queue);
- hlist_add_head_rcu(&n_ptr->hash, &node_htable[tipc_hashfn(addr)]);
+ hlist_add_head_rcu(&n_ptr->hash, &tn->node_htable[tipc_hashfn(addr)]);
- list_for_each_entry_rcu(temp_node, &tipc_node_list, list) {
+ list_for_each_entry_rcu(temp_node, &tn->node_list, list) {
if (n_ptr->addr < temp_node->addr)
break;
}
@@ -128,40 +124,41 @@ struct tipc_node *tipc_node_create(u32 addr)
n_ptr->action_flags = TIPC_WAIT_PEER_LINKS_DOWN;
n_ptr->signature = INVALID_NODE_SIG;
- tipc_num_nodes++;
+ tn->num_nodes++;
- spin_unlock_bh(&node_list_lock);
+ spin_unlock_bh(&tn->node_list_lock);
return n_ptr;
}
-static void tipc_node_delete(struct tipc_node *n_ptr)
+static void tipc_node_delete(struct tipc_net *tn, struct tipc_node *n_ptr)
{
list_del_rcu(&n_ptr->list);
hlist_del_rcu(&n_ptr->hash);
kfree_rcu(n_ptr, rcu);
- tipc_num_nodes--;
+ tn->num_nodes--;
}
-void tipc_node_stop(void)
+void tipc_node_stop(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_node *node, *t_node;
- spin_lock_bh(&node_list_lock);
- list_for_each_entry_safe(node, t_node, &tipc_node_list, list)
- tipc_node_delete(node);
- spin_unlock_bh(&node_list_lock);
+ spin_lock_bh(&tn->node_list_lock);
+ list_for_each_entry_safe(node, t_node, &tn->node_list, list)
+ tipc_node_delete(tn, node);
+ spin_unlock_bh(&tn->node_list_lock);
}
-int tipc_node_add_conn(u32 dnode, u32 port, u32 peer_port)
+int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port)
{
struct tipc_node *node;
struct tipc_sock_conn *conn;
- if (in_own_node(dnode))
+ if (in_own_node(net, dnode))
return 0;
- node = tipc_node_find(dnode);
+ node = tipc_node_find(net, dnode);
if (!node) {
pr_warn("Connecting sock to node 0x%x failed\n", dnode);
return -EHOSTUNREACH;
@@ -179,15 +176,15 @@ int tipc_node_add_conn(u32 dnode, u32 port, u32 peer_port)
return 0;
}
-void tipc_node_remove_conn(u32 dnode, u32 port)
+void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port)
{
struct tipc_node *node;
struct tipc_sock_conn *conn, *safe;
- if (in_own_node(dnode))
+ if (in_own_node(net, dnode))
return;
- node = tipc_node_find(dnode);
+ node = tipc_node_find(net, dnode);
if (!node)
return;
@@ -201,18 +198,20 @@ void tipc_node_remove_conn(u32 dnode, u32 port)
tipc_node_unlock(node);
}
-void tipc_node_abort_sock_conns(struct list_head *conns)
+void tipc_node_abort_sock_conns(struct net *net, struct list_head *conns)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_sock_conn *conn, *safe;
struct sk_buff *buf;
list_for_each_entry_safe(conn, safe, conns, list) {
- buf = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE, TIPC_CONN_MSG,
- SHORT_H_SIZE, 0, tipc_own_addr,
- conn->peer_node, conn->port,
- conn->peer_port, TIPC_ERR_NO_NODE);
+ buf = tipc_msg_create(net, TIPC_CRITICAL_IMPORTANCE,
+ TIPC_CONN_MSG, SHORT_H_SIZE, 0,
+ tn->own_addr, conn->peer_node,
+ conn->port, conn->peer_port,
+ TIPC_ERR_NO_NODE);
if (likely(buf))
- tipc_sk_rcv(buf);
+ tipc_sk_rcv(net, buf);
list_del(&conn->list);
kfree(conn);
}
@@ -290,6 +289,7 @@ static void node_select_active_links(struct tipc_node *n_ptr)
*/
void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
{
+ struct tipc_net *tn = net_generic(n_ptr->net, tipc_net_id);
struct tipc_link **active;
n_ptr->working_links--;
@@ -324,7 +324,7 @@ void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
}
/* Loopback link went down? No fragmentation needed from now on. */
- if (n_ptr->addr == tipc_own_addr) {
+ if (n_ptr->addr == tn->own_addr) {
n_ptr->act_mtus[0] = MAX_MSG_SIZE;
n_ptr->act_mtus[1] = MAX_MSG_SIZE;
}
@@ -342,24 +342,27 @@ int tipc_node_is_up(struct tipc_node *n_ptr)
void tipc_node_attach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
{
+ struct tipc_net *tn = net_generic(n_ptr->net, tipc_net_id);
+
n_ptr->links[l_ptr->bearer_id] = l_ptr;
- spin_lock_bh(&node_list_lock);
- tipc_num_links++;
- spin_unlock_bh(&node_list_lock);
+ spin_lock_bh(&tn->node_list_lock);
+ tn->num_links++;
+ spin_unlock_bh(&tn->node_list_lock);
n_ptr->link_cnt++;
}
void tipc_node_detach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr)
{
+ struct tipc_net *tn = net_generic(n_ptr->net, tipc_net_id);
int i;
for (i = 0; i < MAX_BEARERS; i++) {
if (l_ptr != n_ptr->links[i])
continue;
n_ptr->links[i] = NULL;
- spin_lock_bh(&node_list_lock);
- tipc_num_links--;
- spin_unlock_bh(&node_list_lock);
+ spin_lock_bh(&tn->node_list_lock);
+ tn->num_links--;
+ spin_unlock_bh(&tn->node_list_lock);
n_ptr->link_cnt--;
}
}
@@ -368,8 +371,8 @@ static void node_established_contact(struct tipc_node *n_ptr)
{
n_ptr->action_flags |= TIPC_NOTIFY_NODE_UP;
n_ptr->bclink.oos_state = 0;
- n_ptr->bclink.acked = tipc_bclink_get_last_sent();
- tipc_bclink_add_node(n_ptr->addr);
+ n_ptr->bclink.acked = tipc_bclink_get_last_sent(n_ptr->net);
+ tipc_bclink_add_node(n_ptr->net, n_ptr->addr);
}
static void node_lost_contact(struct tipc_node *n_ptr)
@@ -389,7 +392,7 @@ static void node_lost_contact(struct tipc_node *n_ptr)
n_ptr->bclink.reasm_buf = NULL;
}
- tipc_bclink_remove_node(n_ptr->addr);
+ tipc_bclink_remove_node(n_ptr->net, n_ptr->addr);
tipc_bclink_acknowledge(n_ptr, INVALID_LINK_SEQ);
n_ptr->bclink.recv_permitted = false;
@@ -414,8 +417,10 @@ static void node_lost_contact(struct tipc_node *n_ptr)
TIPC_NOTIFY_NODE_DOWN;
}
-struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space)
+struct sk_buff *tipc_node_get_nodes(struct net *net, const void *req_tlv_area,
+ int req_tlv_space)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 domain;
struct sk_buff *buf;
struct tipc_node *n_ptr;
@@ -430,20 +435,20 @@ struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space)
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (network address)");
- spin_lock_bh(&node_list_lock);
- if (!tipc_num_nodes) {
- spin_unlock_bh(&node_list_lock);
+ spin_lock_bh(&tn->node_list_lock);
+ if (!tn->num_nodes) {
+ spin_unlock_bh(&tn->node_list_lock);
return tipc_cfg_reply_none();
}
/* For now, get space for all other nodes */
- payload_size = TLV_SPACE(sizeof(node_info)) * tipc_num_nodes;
+ payload_size = TLV_SPACE(sizeof(node_info)) * tn->num_nodes;
if (payload_size > 32768u) {
- spin_unlock_bh(&node_list_lock);
+ spin_unlock_bh(&tn->node_list_lock);
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (too many nodes)");
}
- spin_unlock_bh(&node_list_lock);
+ spin_unlock_bh(&tn->node_list_lock);
buf = tipc_cfg_reply_alloc(payload_size);
if (!buf)
@@ -451,7 +456,7 @@ struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space)
/* Add TLVs for all nodes in scope */
rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tipc_node_list, list) {
+ list_for_each_entry_rcu(n_ptr, &tn->node_list, list) {
if (!tipc_in_scope(domain, n_ptr->addr))
continue;
node_info.addr = htonl(n_ptr->addr);
@@ -463,8 +468,10 @@ struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space)
return buf;
}
-struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space)
+struct sk_buff *tipc_node_get_links(struct net *net, const void *req_tlv_area,
+ int req_tlv_space)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 domain;
struct sk_buff *buf;
struct tipc_node *n_ptr;
@@ -479,32 +486,32 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space)
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (network address)");
- if (!tipc_own_addr)
+ if (!tn->own_addr)
return tipc_cfg_reply_none();
- spin_lock_bh(&node_list_lock);
+ spin_lock_bh(&tn->node_list_lock);
/* Get space for all unicast links + broadcast link */
- payload_size = TLV_SPACE((sizeof(link_info)) * (tipc_num_links + 1));
+ payload_size = TLV_SPACE((sizeof(link_info)) * (tn->num_links + 1));
if (payload_size > 32768u) {
- spin_unlock_bh(&node_list_lock);
+ spin_unlock_bh(&tn->node_list_lock);
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (too many links)");
}
- spin_unlock_bh(&node_list_lock);
+ spin_unlock_bh(&tn->node_list_lock);
buf = tipc_cfg_reply_alloc(payload_size);
if (!buf)
return NULL;
/* Add TLV for broadcast link */
- link_info.dest = htonl(tipc_cluster_mask(tipc_own_addr));
+ link_info.dest = htonl(tipc_cluster_mask(tn->own_addr));
link_info.up = htonl(1);
strlcpy(link_info.str, tipc_bclink_name, TIPC_MAX_LINK_NAME);
tipc_cfg_append_tlv(buf, TIPC_TLV_LINK_INFO, &link_info, sizeof(link_info));
/* Add TLVs for any other links in scope */
rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tipc_node_list, list) {
+ list_for_each_entry_rcu(n_ptr, &tn->node_list, list) {
u32 i;
if (!tipc_in_scope(domain, n_ptr->addr))
@@ -534,10 +541,11 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space)
*
* Returns 0 on success
*/
-int tipc_node_get_linkname(u32 bearer_id, u32 addr, char *linkname, size_t len)
+int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 addr,
+ char *linkname, size_t len)
{
struct tipc_link *link;
- struct tipc_node *node = tipc_node_find(addr);
+ struct tipc_node *node = tipc_node_find(net, addr);
if ((bearer_id >= MAX_BEARERS) || !node)
return -EINVAL;
@@ -554,6 +562,7 @@ int tipc_node_get_linkname(u32 bearer_id, u32 addr, char *linkname, size_t len)
void tipc_node_unlock(struct tipc_node *node)
{
+ struct net *net = node->net;
LIST_HEAD(nsub_list);
LIST_HEAD(conn_sks);
struct sk_buff_head waiting_sks;
@@ -585,26 +594,26 @@ void tipc_node_unlock(struct tipc_node *node)
spin_unlock_bh(&node->lock);
while (!skb_queue_empty(&waiting_sks))
- tipc_sk_rcv(__skb_dequeue(&waiting_sks));
+ tipc_sk_rcv(net, __skb_dequeue(&waiting_sks));
if (!list_empty(&conn_sks))
- tipc_node_abort_sock_conns(&conn_sks);
+ tipc_node_abort_sock_conns(net, &conn_sks);
if (!list_empty(&nsub_list))
- tipc_publ_notify(&nsub_list, addr);
+ tipc_publ_notify(net, &nsub_list, addr);
if (flags & TIPC_WAKEUP_BCAST_USERS)
- tipc_bclink_wakeup_users();
+ tipc_bclink_wakeup_users(net);
if (flags & TIPC_NOTIFY_NODE_UP)
- tipc_named_node_up(addr);
+ tipc_named_node_up(net, addr);
if (flags & TIPC_NOTIFY_LINK_UP)
- tipc_nametbl_publish(TIPC_LINK_STATE, addr, addr,
+ tipc_nametbl_publish(net, TIPC_LINK_STATE, addr, addr,
TIPC_NODE_SCOPE, link_id, addr);
if (flags & TIPC_NOTIFY_LINK_DOWN)
- tipc_nametbl_withdraw(TIPC_LINK_STATE, addr,
+ tipc_nametbl_withdraw(net, TIPC_LINK_STATE, addr,
link_id, addr);
}
@@ -645,6 +654,8 @@ msg_full:
int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb)
{
int err;
+ struct net *net = sock_net(skb->sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
int done = cb->args[0];
int last_addr = cb->args[1];
struct tipc_node *node;
@@ -659,7 +670,7 @@ int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb)
rcu_read_lock();
- if (last_addr && !tipc_node_find(last_addr)) {
+ if (last_addr && !tipc_node_find(net, last_addr)) {
rcu_read_unlock();
/* We never set seq or call nl_dump_check_consistent() this
* means that setting prev_seq here will cause the consistence
@@ -671,7 +682,7 @@ int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb)
return -EPIPE;
}
- list_for_each_entry_rcu(node, &tipc_node_list, list) {
+ list_for_each_entry_rcu(node, &tn->node_list, list) {
if (last_addr) {
if (node->addr == last_addr)
last_addr = 0;
diff --git a/net/tipc/node.h b/net/tipc/node.h
index cbe0e950f1cc..43ef88ef3035 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -42,10 +42,10 @@
#include "bearer.h"
#include "msg.h"
-/*
- * Out-of-range value for node signature
- */
-#define INVALID_NODE_SIG 0x10000
+/* Out-of-range value for node signature */
+#define INVALID_NODE_SIG 0x10000
+
+#define NODE_HTABLE_SIZE 512
/* Flags used to take different actions according to flag type
* TIPC_WAIT_PEER_LINKS_DOWN: wait to see that peer's links are down
@@ -90,6 +90,7 @@ struct tipc_node_bclink {
* struct tipc_node - TIPC node structure
* @addr: network address of node
* @lock: spinlock governing access to structure
+ * @net: the applicable net namespace
* @hash: links to adjacent nodes in unsorted hash chain
* @active_links: pointers to active links to node
* @links: pointers to all links to node
@@ -106,6 +107,7 @@ struct tipc_node_bclink {
struct tipc_node {
u32 addr;
spinlock_t lock;
+ struct net *net;
struct hlist_node hash;
struct tipc_link *active_links[2];
u32 act_mtus[2];
@@ -123,23 +125,24 @@ struct tipc_node {
struct rcu_head rcu;
};
-extern struct list_head tipc_node_list;
-
-struct tipc_node *tipc_node_find(u32 addr);
-struct tipc_node *tipc_node_create(u32 addr);
-void tipc_node_stop(void);
+struct tipc_node *tipc_node_find(struct net *net, u32 addr);
+struct tipc_node *tipc_node_create(struct net *net, u32 addr);
+void tipc_node_stop(struct net *net);
void tipc_node_attach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
void tipc_node_detach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
int tipc_node_active_links(struct tipc_node *n_ptr);
int tipc_node_is_up(struct tipc_node *n_ptr);
-struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space);
-struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space);
-int tipc_node_get_linkname(u32 bearer_id, u32 node, char *linkname, size_t len);
+struct sk_buff *tipc_node_get_links(struct net *net, const void *req_tlv_area,
+ int req_tlv_space);
+struct sk_buff *tipc_node_get_nodes(struct net *net, const void *req_tlv_area,
+ int req_tlv_space);
+int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 node,
+ char *linkname, size_t len);
void tipc_node_unlock(struct tipc_node *node);
-int tipc_node_add_conn(u32 dnode, u32 port, u32 peer_port);
-void tipc_node_remove_conn(u32 dnode, u32 port);
+int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port);
+void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port);
int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb);
@@ -154,12 +157,12 @@ static inline bool tipc_node_blocked(struct tipc_node *node)
TIPC_NOTIFY_NODE_DOWN | TIPC_WAIT_OWN_LINKS_DOWN));
}
-static inline uint tipc_node_get_mtu(u32 addr, u32 selector)
+static inline uint tipc_node_get_mtu(struct net *net, u32 addr, u32 selector)
{
struct tipc_node *node;
u32 mtu;
- node = tipc_node_find(addr);
+ node = tipc_node_find(net, addr);
if (likely(node))
mtu = node->act_mtus[selector & 1];
diff --git a/net/tipc/server.c b/net/tipc/server.c
index a538a02f869b..eadd4ed45905 100644
--- a/net/tipc/server.c
+++ b/net/tipc/server.c
@@ -35,6 +35,7 @@
#include "server.h"
#include "core.h"
+#include "socket.h"
#include <net/sock.h>
/* Number of messages to send before rescheduling */
@@ -255,7 +256,8 @@ static int tipc_receive_from_sock(struct tipc_conn *con)
goto out_close;
}
- s->tipc_conn_recvmsg(con->conid, &addr, con->usr_data, buf, ret);
+ s->tipc_conn_recvmsg(sock_net(con->sock->sk), con->conid, &addr,
+ con->usr_data, buf, ret);
kmem_cache_free(s->rcvbuf_cache, buf);
@@ -307,7 +309,7 @@ static struct socket *tipc_create_listen_sock(struct tipc_conn *con)
struct socket *sock = NULL;
int ret;
- ret = tipc_sock_create_local(s->type, &sock);
+ ret = tipc_sock_create_local(s->net, s->type, &sock);
if (ret < 0)
return NULL;
ret = kernel_setsockopt(sock, SOL_TIPC, TIPC_IMPORTANCE,
diff --git a/net/tipc/server.h b/net/tipc/server.h
index be817b0b547e..9015faedb1b0 100644
--- a/net/tipc/server.h
+++ b/net/tipc/server.h
@@ -36,7 +36,9 @@
#ifndef _TIPC_SERVER_H
#define _TIPC_SERVER_H
-#include "core.h"
+#include <linux/idr.h>
+#include <linux/tipc.h>
+#include <net/net_namespace.h>
#define TIPC_SERVER_NAME_LEN 32
@@ -45,6 +47,7 @@
* @conn_idr: identifier set of connection
* @idr_lock: protect the connection identifier set
* @idr_in_use: amount of allocated identifier entry
+ * @net: network namspace instance
* @rcvbuf_cache: memory cache of server receive buffer
* @rcv_wq: receive workqueue
* @send_wq: send workqueue
@@ -61,16 +64,18 @@ struct tipc_server {
struct idr conn_idr;
spinlock_t idr_lock;
int idr_in_use;
+ struct net *net;
struct kmem_cache *rcvbuf_cache;
struct workqueue_struct *rcv_wq;
struct workqueue_struct *send_wq;
int max_rcvbuf_size;
- void *(*tipc_conn_new) (int conid);
- void (*tipc_conn_shutdown) (int conid, void *usr_data);
- void (*tipc_conn_recvmsg) (int conid, struct sockaddr_tipc *addr,
- void *usr_data, void *buf, size_t len);
+ void *(*tipc_conn_new)(int conid);
+ void (*tipc_conn_shutdown)(int conid, void *usr_data);
+ void (*tipc_conn_recvmsg)(struct net *net, int conid,
+ struct sockaddr_tipc *addr, void *usr_data,
+ void *buf, size_t len);
struct sockaddr_tipc *saddr;
- const char name[TIPC_SERVER_NAME_LEN];
+ char name[TIPC_SERVER_NAME_LEN];
int imp;
int type;
};
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 701f31bbbbfb..2cec496ba691 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -47,7 +47,7 @@
#define SS_READY -2 /* socket is connectionless */
#define CONN_TIMEOUT_DEFAULT 8000 /* default connect timeout = 8s */
-#define CONN_PROBING_INTERVAL 3600000 /* [ms] => 1 h */
+#define CONN_PROBING_INTERVAL msecs_to_jiffies(3600000) /* [ms] => 1 h */
#define TIPC_FWD_MSG 1
#define TIPC_CONN_OK 0
#define TIPC_CONN_PROBING 1
@@ -68,7 +68,7 @@
* @publications: list of publications for port
* @pub_count: total # of publications port has made during its lifetime
* @probing_state:
- * @probing_interval:
+ * @probing_intv:
* @timer:
* @port: port - interacts with 'sk' and with the rest of the TIPC stack
* @peer_name: the peer of the connection, if any
@@ -93,7 +93,7 @@ struct tipc_sock {
struct list_head publications;
u32 pub_count;
u32 probing_state;
- u32 probing_interval;
+ unsigned long probing_intv;
struct timer_list timer;
uint conn_timeout;
atomic_t dupl_rcvcnt;
@@ -110,12 +110,12 @@ static void tipc_write_space(struct sock *sk);
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 portid);
+static void tipc_sk_timeout(unsigned long data);
static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
struct tipc_name_seq const *seq);
static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
struct tipc_name_seq const *seq);
-static struct tipc_sock *tipc_sk_lookup(u32 portid);
+static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid);
static int tipc_sk_insert(struct tipc_sock *tsk);
static void tipc_sk_remove(struct tipc_sock *tsk);
@@ -179,9 +179,6 @@ static const struct nla_policy tipc_nl_sock_policy[TIPC_NLA_SOCK_MAX + 1] = {
* - port reference
*/
-/* Protects tipc socket hash table mutations */
-static struct rhashtable tipc_sk_rht;
-
static u32 tsk_peer_node(struct tipc_sock *tsk)
{
return msg_destnode(&tsk->phdr);
@@ -254,10 +251,11 @@ static void tsk_rej_rx_queue(struct sock *sk)
{
struct sk_buff *skb;
u32 dnode;
+ struct net *net = sock_net(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);
+ if (tipc_msg_reverse(net, skb, &dnode, TIPC_ERR_NO_PORT))
+ tipc_link_xmit_skb(net, skb, dnode, 0);
}
}
@@ -268,6 +266,7 @@ static void tsk_rej_rx_queue(struct sock *sk)
*/
static bool tsk_peer_msg(struct tipc_sock *tsk, struct tipc_msg *msg)
{
+ struct tipc_net *tn = net_generic(sock_net(&tsk->sk), tipc_net_id);
u32 peer_port = tsk_peer_port(tsk);
u32 orig_node;
u32 peer_node;
@@ -284,10 +283,10 @@ static bool tsk_peer_msg(struct tipc_sock *tsk, struct tipc_msg *msg)
if (likely(orig_node == peer_node))
return true;
- if (!orig_node && (peer_node == tipc_own_addr))
+ if (!orig_node && (peer_node == tn->own_addr))
return true;
- if (!peer_node && (orig_node == tipc_own_addr))
+ if (!peer_node && (orig_node == tn->own_addr))
return true;
return false;
@@ -349,7 +348,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
tsk->max_pkt = MAX_PKT_DEFAULT;
INIT_LIST_HEAD(&tsk->publications);
msg = &tsk->phdr;
- tipc_msg_init(msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG,
+ tipc_msg_init(net, msg, TIPC_LOW_IMPORTANCE, TIPC_NAMED_MSG,
NAMED_H_SIZE, 0);
/* Finish initializing socket data structures */
@@ -361,7 +360,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
return -EINVAL;
}
msg_set_origport(msg, tsk->portid);
- k_init_timer(&tsk->timer, (Handler)tipc_sk_timeout, tsk->portid);
+ setup_timer(&tsk->timer, tipc_sk_timeout, (unsigned long)tsk);
sk->sk_backlog_rcv = tipc_backlog_rcv;
sk->sk_rcvbuf = sysctl_tipc_rmem[1];
sk->sk_data_ready = tipc_data_ready;
@@ -389,7 +388,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock,
*
* Returns 0 on success, errno otherwise
*/
-int tipc_sock_create_local(int type, struct socket **res)
+int tipc_sock_create_local(struct net *net, int type, struct socket **res)
{
int rc;
@@ -398,7 +397,7 @@ int tipc_sock_create_local(int type, struct socket **res)
pr_err("Failed to create kernel socket\n");
return rc;
}
- tipc_sk_create(&init_net, *res, 0, 1);
+ tipc_sk_create(net, *res, 0, 1);
return 0;
}
@@ -473,9 +472,11 @@ 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_net *tn = net_generic(net, tipc_net_id);
struct tipc_sock *tsk;
struct sk_buff *skb;
- u32 dnode;
+ u32 dnode, probing_state;
/*
* Exit if socket isn't fully initialized (occurs when a failed accept()
@@ -503,26 +504,28 @@ 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);
+ if (tipc_msg_reverse(net, skb, &dnode,
+ TIPC_ERR_NO_PORT))
+ tipc_link_xmit_skb(net, skb, dnode, 0);
}
}
tipc_sk_withdraw(tsk, 0, NULL);
- k_cancel_timer(&tsk->timer);
+ probing_state = tsk->probing_state;
+ if (del_timer_sync(&tsk->timer) && probing_state != TIPC_CONN_PROBING)
+ sock_put(sk);
tipc_sk_remove(tsk);
if (tsk->connected) {
- skb = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE, TIPC_CONN_MSG,
- SHORT_H_SIZE, 0, dnode, tipc_own_addr,
- tsk_peer_port(tsk),
+ skb = tipc_msg_create(net, TIPC_CRITICAL_IMPORTANCE,
+ TIPC_CONN_MSG, SHORT_H_SIZE, 0, dnode,
+ tn->own_addr, 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);
}
- k_term_timer(&tsk->timer);
/* Discard any remaining (connection-based) messages in receive queue */
__skb_queue_purge(&sk->sk_receive_queue);
@@ -615,6 +618,7 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr,
{
struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr;
struct tipc_sock *tsk = tipc_sk(sock->sk);
+ struct tipc_net *tn = net_generic(sock_net(sock->sk), tipc_net_id);
memset(addr, 0, sizeof(*addr));
if (peer) {
@@ -625,7 +629,7 @@ static int tipc_getname(struct socket *sock, struct sockaddr *uaddr,
addr->addr.id.node = tsk_peer_node(tsk);
} else {
addr->addr.id.ref = tsk->portid;
- addr->addr.id.node = tipc_own_addr;
+ addr->addr.id.node = tn->own_addr;
}
*uaddr_len = sizeof(*addr);
@@ -724,6 +728,7 @@ 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;
@@ -741,12 +746,12 @@ static int tipc_sendmcast(struct socket *sock, struct tipc_name_seq *seq,
new_mtu:
mtu = tipc_bclink_get_mtu();
__skb_queue_head_init(&head);
- rc = tipc_msg_build(mhdr, msg, 0, dsz, mtu, &head);
+ rc = tipc_msg_build(net, mhdr, msg, 0, dsz, mtu, &head);
if (unlikely(rc < 0))
return rc;
do {
- rc = tipc_bclink_xmit(&head);
+ rc = tipc_bclink_xmit(net, &head);
if (likely(rc >= 0)) {
rc = dsz;
break;
@@ -765,7 +770,7 @@ 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, };
@@ -774,15 +779,12 @@ void tipc_sk_mcast_rcv(struct sk_buff *buf)
uint i, last, dst = 0;
u32 scope = TIPC_CLUSTER_SCOPE;
- if (in_own_node(msg_orignode(msg)))
+ if (in_own_node(net, msg_orignode(msg)))
scope = TIPC_NODE_SCOPE;
/* Create destination port list: */
- tipc_nametbl_mc_translate(msg_nametype(msg),
- msg_namelower(msg),
- msg_nameupper(msg),
- scope,
- &dports);
+ tipc_nametbl_mc_translate(net, msg_nametype(msg), msg_namelower(msg),
+ msg_nameupper(msg), scope, &dports);
last = dports.count;
if (!last) {
kfree_skb(buf);
@@ -797,7 +799,7 @@ 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);
@@ -829,7 +831,7 @@ static int tipc_sk_proto_rcv(struct tipc_sock *tsk, u32 *dnode,
if (conn_cong)
tsk->sk.sk_write_space(&tsk->sk);
} else if (msg_type(msg) == CONN_PROBE) {
- if (!tipc_msg_reverse(buf, dnode, TIPC_OK))
+ if (!tipc_msg_reverse(sock_net(&tsk->sk), buf, dnode, TIPC_OK))
return TIPC_OK;
msg_set_type(msg, CONN_PROBE_REPLY);
return TIPC_FWD_MSG;
@@ -885,6 +887,7 @@ 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;
@@ -942,7 +945,7 @@ static int tipc_sendmsg(struct kiocb *iocb, struct socket *sock,
msg_set_nametype(mhdr, type);
msg_set_nameinst(mhdr, inst);
msg_set_lookup_scope(mhdr, tipc_addr_scope(domain));
- dport = tipc_nametbl_translate(type, inst, &dnode);
+ dport = tipc_nametbl_translate(net, type, inst, &dnode);
msg_set_destnode(mhdr, dnode);
msg_set_destport(mhdr, dport);
if (unlikely(!dport && !dnode)) {
@@ -959,16 +962,16 @@ 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);
+ rc = tipc_msg_build(net, mhdr, m, 0, dsz, mtu, &head);
if (rc < 0)
goto exit;
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;
@@ -1037,6 +1040,7 @@ 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;
@@ -1075,12 +1079,12 @@ next:
mtu = tsk->max_pkt;
send = min_t(uint, dsz - sent, TIPC_MAX_USER_MSG_SIZE);
__skb_queue_head_init(&head);
- rc = tipc_msg_build(mhdr, m, sent, send, mtu, &head);
+ rc = tipc_msg_build(net, mhdr, m, sent, send, mtu, &head);
if (unlikely(rc < 0))
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;
@@ -1089,7 +1093,8 @@ 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)
@@ -1131,6 +1136,7 @@ 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);
@@ -1139,12 +1145,13 @@ static void tipc_sk_finish_conn(struct tipc_sock *tsk, u32 peer_port,
msg_set_lookup_scope(msg, 0);
msg_set_hdr_sz(msg, SHORT_H_SIZE);
- tsk->probing_interval = CONN_PROBING_INTERVAL;
+ tsk->probing_intv = 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->portid, peer_port);
- tsk->max_pkt = tipc_node_get_mtu(peer_node, tsk->portid);
+ if (!mod_timer(&tsk->timer, jiffies + tsk->probing_intv))
+ sock_hold(&tsk->sk);
+ tipc_node_add_conn(net, peer_node, tsk->portid, peer_port);
+ tsk->max_pkt = tipc_node_get_mtu(net, peer_node, tsk->portid);
}
/**
@@ -1243,6 +1250,8 @@ 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 tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *skb = NULL;
struct tipc_msg *msg;
u32 peer_port = tsk_peer_port(tsk);
@@ -1250,13 +1259,14 @@ static void tipc_sk_send_ack(struct tipc_sock *tsk, uint ack)
if (!tsk->connected)
return;
- skb = tipc_msg_create(CONN_MANAGER, CONN_ACK, INT_H_SIZE, 0, dnode,
- tipc_own_addr, peer_port, tsk->portid, TIPC_OK);
+ skb = tipc_msg_create(net, CONN_MANAGER, CONN_ACK, INT_H_SIZE, 0,
+ dnode, tn->own_addr, peer_port, tsk->portid,
+ TIPC_OK);
if (!skb)
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)
@@ -1549,6 +1559,7 @@ 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;
@@ -1564,7 +1575,7 @@ 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;
@@ -1722,6 +1733,7 @@ static int tipc_backlog_rcv(struct sock *sk, struct sk_buff *skb)
int rc;
u32 onode;
struct tipc_sock *tsk = tipc_sk(sk);
+ struct net *net = sock_net(sk);
uint truesize = skb->truesize;
rc = filter_rcv(sk, skb);
@@ -1732,10 +1744,10 @@ static int tipc_backlog_rcv(struct sock *sk, struct sk_buff *skb)
return 0;
}
- if ((rc < 0) && !tipc_msg_reverse(skb, &onode, -rc))
+ if ((rc < 0) && !tipc_msg_reverse(net, skb, &onode, -rc))
return 0;
- tipc_link_xmit_skb(skb, onode, 0);
+ tipc_link_xmit_skb(net, skb, onode, 0);
return 0;
}
@@ -1746,7 +1758,7 @@ 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;
@@ -1756,9 +1768,9 @@ int tipc_sk_rcv(struct sk_buff *skb)
u32 dnode;
/* Validate destination and message */
- tsk = tipc_sk_lookup(dport);
+ tsk = tipc_sk_lookup(net, dport);
if (unlikely(!tsk)) {
- rc = tipc_msg_eval(skb, &dnode);
+ rc = tipc_msg_eval(net, skb, &dnode);
goto exit;
}
sk = &tsk->sk;
@@ -1780,10 +1792,10 @@ int tipc_sk_rcv(struct sk_buff *skb)
if (likely(!rc))
return 0;
exit:
- if ((rc < 0) && !tipc_msg_reverse(skb, &dnode, -rc))
+ if ((rc < 0) && !tipc_msg_reverse(net, 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;
}
@@ -2040,6 +2052,8 @@ exit:
static int tipc_shutdown(struct socket *sock, int how)
{
struct sock *sk = sock->sk;
+ struct net *net = sock_net(sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_sock *tsk = tipc_sk(sk);
struct sk_buff *skb;
u32 dnode;
@@ -2062,21 +2076,23 @@ restart:
kfree_skb(skb);
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);
+ if (tipc_msg_reverse(net, skb, &dnode,
+ TIPC_CONN_SHUTDOWN))
+ 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,
+ skb = tipc_msg_create(net, TIPC_CRITICAL_IMPORTANCE,
TIPC_CONN_MSG, SHORT_H_SIZE,
- 0, dnode, tipc_own_addr,
+ 0, dnode, tn->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:
@@ -2097,18 +2113,15 @@ restart:
return res;
}
-static void tipc_sk_timeout(unsigned long portid)
+static void tipc_sk_timeout(unsigned long data)
{
- struct tipc_sock *tsk;
- struct sock *sk;
+ struct tipc_sock *tsk = (struct tipc_sock *)data;
+ struct sock *sk = &tsk->sk;
+ struct net *net = sock_net(sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct sk_buff *skb = NULL;
u32 peer_port, peer_node;
- tsk = tipc_sk_lookup(portid);
- if (!tsk)
- return;
-
- sk = &tsk->sk;
bh_lock_sock(sk);
if (!tsk->connected) {
bh_unlock_sock(sk);
@@ -2119,20 +2132,21 @@ static void tipc_sk_timeout(unsigned long portid)
if (tsk->probing_state == TIPC_CONN_PROBING) {
/* Previous probe not answered -> self abort */
- skb = tipc_msg_create(TIPC_CRITICAL_IMPORTANCE, TIPC_CONN_MSG,
- SHORT_H_SIZE, 0, tipc_own_addr,
- peer_node, portid, peer_port,
- TIPC_ERR_NO_PORT);
+ skb = tipc_msg_create(net, TIPC_CRITICAL_IMPORTANCE,
+ TIPC_CONN_MSG, SHORT_H_SIZE, 0,
+ tn->own_addr, peer_node, tsk->portid,
+ peer_port, TIPC_ERR_NO_PORT);
} else {
- skb = tipc_msg_create(CONN_MANAGER, CONN_PROBE, INT_H_SIZE,
- 0, peer_node, tipc_own_addr,
- peer_port, portid, TIPC_OK);
+ skb = tipc_msg_create(net, CONN_MANAGER, CONN_PROBE, INT_H_SIZE,
+ 0, peer_node, tn->own_addr,
+ peer_port, tsk->portid, TIPC_OK);
tsk->probing_state = TIPC_CONN_PROBING;
- k_start_timer(&tsk->timer, tsk->probing_interval);
+ if (!mod_timer(&tsk->timer, jiffies + tsk->probing_intv))
+ sock_hold(sk);
}
bh_unlock_sock(sk);
if (skb)
- tipc_link_xmit_skb(skb, peer_node, portid);
+ tipc_link_xmit_skb(sock_net(sk), skb, peer_node, tsk->portid);
exit:
sock_put(sk);
}
@@ -2140,6 +2154,7 @@ 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;
@@ -2149,7 +2164,7 @@ 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;
@@ -2163,6 +2178,7 @@ 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;
@@ -2177,12 +2193,12 @@ 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;
}
@@ -2194,14 +2210,16 @@ static int tipc_sk_withdraw(struct tipc_sock *tsk, uint scope,
static int tipc_sk_show(struct tipc_sock *tsk, char *buf,
int len, int full_id)
{
+ struct net *net = sock_net(&tsk->sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct publication *publ;
int ret;
if (full_id)
ret = tipc_snprintf(buf, len, "<%u.%u.%u:%u>:",
- tipc_zone(tipc_own_addr),
- tipc_cluster(tipc_own_addr),
- tipc_node(tipc_own_addr), tsk->portid);
+ tipc_zone(tn->own_addr),
+ tipc_cluster(tn->own_addr),
+ tipc_node(tn->own_addr), tsk->portid);
else
ret = tipc_snprintf(buf, len, "%-10u:", tsk->portid);
@@ -2235,8 +2253,9 @@ static int tipc_sk_show(struct tipc_sock *tsk, char *buf,
return ret;
}
-struct sk_buff *tipc_sk_socks_show(void)
+struct sk_buff *tipc_sk_socks_show(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
const struct bucket_table *tbl;
struct rhash_head *pos;
struct sk_buff *buf;
@@ -2255,7 +2274,7 @@ struct sk_buff *tipc_sk_socks_show(void)
pb_len = ULTRA_STRING_MAX_LEN;
rcu_read_lock();
- tbl = rht_dereference_rcu((&tipc_sk_rht)->tbl, &tipc_sk_rht);
+ tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht);
for (i = 0; i < tbl->size; i++) {
rht_for_each_entry_rcu(tsk, pos, tbl, i, node) {
spin_lock_bh(&tsk->sk.sk_lock.slock);
@@ -2276,8 +2295,9 @@ struct sk_buff *tipc_sk_socks_show(void)
/* tipc_sk_reinit: set non-zero address in all existing sockets
* when we go from standalone to network mode.
*/
-void tipc_sk_reinit(void)
+void tipc_sk_reinit(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
const struct bucket_table *tbl;
struct rhash_head *pos;
struct tipc_sock *tsk;
@@ -2285,25 +2305,26 @@ void tipc_sk_reinit(void)
int i;
rcu_read_lock();
- tbl = rht_dereference_rcu((&tipc_sk_rht)->tbl, &tipc_sk_rht);
+ tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht);
for (i = 0; i < tbl->size; i++) {
rht_for_each_entry_rcu(tsk, pos, tbl, i, node) {
spin_lock_bh(&tsk->sk.sk_lock.slock);
msg = &tsk->phdr;
- msg_set_prevnode(msg, tipc_own_addr);
- msg_set_orignode(msg, tipc_own_addr);
+ msg_set_prevnode(msg, tn->own_addr);
+ msg_set_orignode(msg, tn->own_addr);
spin_unlock_bh(&tsk->sk.sk_lock.slock);
}
}
rcu_read_unlock();
}
-static struct tipc_sock *tipc_sk_lookup(u32 portid)
+static struct tipc_sock *tipc_sk_lookup(struct net *net, u32 portid)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_sock *tsk;
rcu_read_lock();
- tsk = rhashtable_lookup(&tipc_sk_rht, &portid);
+ tsk = rhashtable_lookup(&tn->sk_rht, &portid);
if (tsk)
sock_hold(&tsk->sk);
rcu_read_unlock();
@@ -2313,6 +2334,9 @@ static struct tipc_sock *tipc_sk_lookup(u32 portid)
static int tipc_sk_insert(struct tipc_sock *tsk)
{
+ struct sock *sk = &tsk->sk;
+ struct net *net = sock_net(sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
u32 remaining = (TIPC_MAX_PORT - TIPC_MIN_PORT) + 1;
u32 portid = prandom_u32() % remaining + TIPC_MIN_PORT;
@@ -2322,7 +2346,7 @@ static int tipc_sk_insert(struct tipc_sock *tsk)
portid = TIPC_MIN_PORT;
tsk->portid = portid;
sock_hold(&tsk->sk);
- if (rhashtable_lookup_insert(&tipc_sk_rht, &tsk->node))
+ if (rhashtable_lookup_insert(&tn->sk_rht, &tsk->node))
return 0;
sock_put(&tsk->sk);
}
@@ -2333,15 +2357,17 @@ static int tipc_sk_insert(struct tipc_sock *tsk)
static void tipc_sk_remove(struct tipc_sock *tsk)
{
struct sock *sk = &tsk->sk;
+ struct tipc_net *tn = net_generic(sock_net(sk), tipc_net_id);
- if (rhashtable_remove(&tipc_sk_rht, &tsk->node)) {
+ if (rhashtable_remove(&tn->sk_rht, &tsk->node)) {
WARN_ON(atomic_read(&sk->sk_refcnt) == 1);
__sock_put(sk);
}
}
-int tipc_sk_rht_init(void)
+int tipc_sk_rht_init(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct rhashtable_params rht_params = {
.nelem_hint = 192,
.head_offset = offsetof(struct tipc_sock, node),
@@ -2354,15 +2380,17 @@ int tipc_sk_rht_init(void)
.shrink_decision = rht_shrink_below_30,
};
- return rhashtable_init(&tipc_sk_rht, &rht_params);
+ return rhashtable_init(&tn->sk_rht, &rht_params);
}
-void tipc_sk_rht_destroy(void)
+void tipc_sk_rht_destroy(struct net *net)
{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+
/* Wait for socket readers to complete */
synchronize_net();
- rhashtable_destroy(&tipc_sk_rht);
+ rhashtable_destroy(&tn->sk_rht);
}
/**
@@ -2494,8 +2522,9 @@ 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;
@@ -2503,7 +2532,8 @@ 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;
@@ -2675,6 +2705,8 @@ static int __tipc_nl_add_sk(struct sk_buff *skb, struct netlink_callback *cb,
int err;
void *hdr;
struct nlattr *attrs;
+ struct net *net = sock_net(skb->sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
&tipc_genl_v2_family, NLM_F_MULTI, TIPC_NL_SOCK_GET);
@@ -2686,7 +2718,7 @@ static int __tipc_nl_add_sk(struct sk_buff *skb, struct netlink_callback *cb,
goto genlmsg_cancel;
if (nla_put_u32(skb, TIPC_NLA_SOCK_REF, tsk->portid))
goto attr_msg_cancel;
- if (nla_put_u32(skb, TIPC_NLA_SOCK_ADDR, tipc_own_addr))
+ if (nla_put_u32(skb, TIPC_NLA_SOCK_ADDR, tn->own_addr))
goto attr_msg_cancel;
if (tsk->connected) {
@@ -2718,10 +2750,12 @@ int tipc_nl_sk_dump(struct sk_buff *skb, struct netlink_callback *cb)
struct rhash_head *pos;
u32 prev_portid = cb->args[0];
u32 portid = prev_portid;
+ struct net *net = sock_net(skb->sk);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
int i;
rcu_read_lock();
- tbl = rht_dereference_rcu((&tipc_sk_rht)->tbl, &tipc_sk_rht);
+ tbl = rht_dereference_rcu((&tn->sk_rht)->tbl, &tn->sk_rht);
for (i = 0; i < tbl->size; i++) {
rht_for_each_entry_rcu(tsk, pos, tbl, i, node) {
spin_lock_bh(&tsk->sk.sk_lock.slock);
@@ -2827,6 +2861,7 @@ int tipc_nl_publ_dump(struct sk_buff *skb, struct netlink_callback *cb)
u32 tsk_portid = cb->args[0];
u32 last_publ = cb->args[1];
u32 done = cb->args[2];
+ struct net *net = sock_net(skb->sk);
struct tipc_sock *tsk;
if (!tsk_portid) {
@@ -2852,7 +2887,7 @@ int tipc_nl_publ_dump(struct sk_buff *skb, struct netlink_callback *cb)
if (done)
return 0;
- tsk = tipc_sk_lookup(tsk_portid);
+ tsk = tipc_sk_lookup(net, tsk_portid);
if (!tsk)
return -EINVAL;
diff --git a/net/tipc/socket.h b/net/tipc/socket.h
index c7d46d069d89..f56c3fded51f 100644
--- a/net/tipc/socket.h
+++ b/net/tipc/socket.h
@@ -42,12 +42,19 @@
#define TIPC_FLOWCTRL_WIN (TIPC_CONNACK_INTV * 2)
#define TIPC_CONN_OVERLOAD_LIMIT ((TIPC_FLOWCTRL_WIN * 2 + 1) * \
SKB_TRUESIZE(TIPC_MAX_USER_MSG_SIZE))
-int tipc_sk_rcv(struct sk_buff *buf);
-struct sk_buff *tipc_sk_socks_show(void);
-void tipc_sk_mcast_rcv(struct sk_buff *buf);
-void tipc_sk_reinit(void);
-int tipc_sk_rht_init(void);
-void tipc_sk_rht_destroy(void);
+
+int tipc_socket_init(void);
+void tipc_socket_stop(void);
+int tipc_sock_create_local(struct net *net, int type, struct socket **res);
+void tipc_sock_release_local(struct socket *sock);
+int tipc_sock_accept_local(struct socket *sock, struct socket **newsock,
+ int flags);
+int tipc_sk_rcv(struct net *net, struct sk_buff *buf);
+struct sk_buff *tipc_sk_socks_show(struct net *net);
+void tipc_sk_mcast_rcv(struct net *net, struct sk_buff *buf);
+void tipc_sk_reinit(struct net *net);
+int tipc_sk_rht_init(struct net *net);
+void tipc_sk_rht_destroy(struct net *net);
int tipc_nl_sk_dump(struct sk_buff *skb, struct netlink_callback *cb);
int tipc_nl_publ_dump(struct sk_buff *skb, struct netlink_callback *cb);
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 0344206b984f..72c339e432aa 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -50,33 +50,6 @@ struct tipc_subscriber {
struct list_head subscription_list;
};
-static void subscr_conn_msg_event(int conid, struct sockaddr_tipc *addr,
- void *usr_data, void *buf, size_t len);
-static void *subscr_named_msg_event(int conid);
-static void subscr_conn_shutdown_event(int conid, void *usr_data);
-
-static atomic_t subscription_count = ATOMIC_INIT(0);
-
-static struct sockaddr_tipc topsrv_addr __read_mostly = {
- .family = AF_TIPC,
- .addrtype = TIPC_ADDR_NAMESEQ,
- .addr.nameseq.type = TIPC_TOP_SRV,
- .addr.nameseq.lower = TIPC_TOP_SRV,
- .addr.nameseq.upper = TIPC_TOP_SRV,
- .scope = TIPC_NODE_SCOPE
-};
-
-static struct tipc_server topsrv __read_mostly = {
- .saddr = &topsrv_addr,
- .imp = TIPC_CRITICAL_IMPORTANCE,
- .type = SOCK_SEQPACKET,
- .max_rcvbuf_size = sizeof(struct tipc_subscr),
- .name = "topology_server",
- .tipc_conn_recvmsg = subscr_conn_msg_event,
- .tipc_conn_new = subscr_named_msg_event,
- .tipc_conn_shutdown = subscr_conn_shutdown_event,
-};
-
/**
* htohl - convert value to endianness used by destination
* @in: value to convert
@@ -93,6 +66,7 @@ static void subscr_send_event(struct tipc_subscription *sub, u32 found_lower,
u32 found_upper, u32 event, u32 port_ref,
u32 node)
{
+ struct tipc_net *tn = net_generic(sub->net, tipc_net_id);
struct tipc_subscriber *subscriber = sub->subscriber;
struct kvec msg_sect;
@@ -103,8 +77,8 @@ static void subscr_send_event(struct tipc_subscription *sub, u32 found_lower,
sub->evt.found_upper = htohl(found_upper, sub->swap);
sub->evt.port.ref = htohl(port_ref, sub->swap);
sub->evt.port.node = htohl(node, sub->swap);
- tipc_conn_sendmsg(&topsrv, subscriber->conid, NULL, msg_sect.iov_base,
- msg_sect.iov_len);
+ tipc_conn_sendmsg(tn->topsrv, subscriber->conid, NULL,
+ msg_sect.iov_base, msg_sect.iov_len);
}
/**
@@ -141,9 +115,11 @@ void tipc_subscr_report_overlap(struct tipc_subscription *sub, u32 found_lower,
subscr_send_event(sub, found_lower, found_upper, event, port_ref, node);
}
-static void subscr_timeout(struct tipc_subscription *sub)
+static void subscr_timeout(unsigned long data)
{
+ struct tipc_subscription *sub = (struct tipc_subscription *)data;
struct tipc_subscriber *subscriber = sub->subscriber;
+ struct tipc_net *tn = net_generic(sub->net, tipc_net_id);
/* The spin lock per subscriber is used to protect its members */
spin_lock_bh(&subscriber->lock);
@@ -167,9 +143,8 @@ static void subscr_timeout(struct tipc_subscription *sub)
TIPC_SUBSCR_TIMEOUT, 0, 0);
/* Now destroy subscription */
- k_term_timer(&sub->timer);
kfree(sub);
- atomic_dec(&subscription_count);
+ atomic_dec(&tn->subscription_count);
}
/**
@@ -179,10 +154,12 @@ static void subscr_timeout(struct tipc_subscription *sub)
*/
static void subscr_del(struct tipc_subscription *sub)
{
+ struct tipc_net *tn = net_generic(sub->net, tipc_net_id);
+
tipc_nametbl_unsubscribe(sub);
list_del(&sub->subscription_list);
kfree(sub);
- atomic_dec(&subscription_count);
+ atomic_dec(&tn->subscription_count);
}
/**
@@ -190,9 +167,12 @@ static void subscr_del(struct tipc_subscription *sub)
*
* Note: Must call it in process context since it might sleep.
*/
-static void subscr_terminate(struct tipc_subscriber *subscriber)
+static void subscr_terminate(struct tipc_subscription *sub)
{
- tipc_conn_terminate(&topsrv, subscriber->conid);
+ struct tipc_subscriber *subscriber = sub->subscriber;
+ struct tipc_net *tn = net_generic(sub->net, tipc_net_id);
+
+ tipc_conn_terminate(tn->topsrv, subscriber->conid);
}
static void subscr_release(struct tipc_subscriber *subscriber)
@@ -207,8 +187,7 @@ static void subscr_release(struct tipc_subscriber *subscriber)
subscription_list) {
if (sub->timeout != TIPC_WAIT_FOREVER) {
spin_unlock_bh(&subscriber->lock);
- k_cancel_timer(&sub->timer);
- k_term_timer(&sub->timer);
+ del_timer_sync(&sub->timer);
spin_lock_bh(&subscriber->lock);
}
subscr_del(sub);
@@ -250,8 +229,7 @@ static void subscr_cancel(struct tipc_subscr *s,
if (sub->timeout != TIPC_WAIT_FOREVER) {
sub->timeout = TIPC_WAIT_FOREVER;
spin_unlock_bh(&subscriber->lock);
- k_cancel_timer(&sub->timer);
- k_term_timer(&sub->timer);
+ del_timer_sync(&sub->timer);
spin_lock_bh(&subscriber->lock);
}
subscr_del(sub);
@@ -262,9 +240,11 @@ static void subscr_cancel(struct tipc_subscr *s,
*
* Called with subscriber lock held.
*/
-static int subscr_subscribe(struct tipc_subscr *s,
+static int subscr_subscribe(struct net *net, struct tipc_subscr *s,
struct tipc_subscriber *subscriber,
- struct tipc_subscription **sub_p) {
+ struct tipc_subscription **sub_p)
+{
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
struct tipc_subscription *sub;
int swap;
@@ -279,7 +259,7 @@ static int subscr_subscribe(struct tipc_subscr *s,
}
/* Refuse subscription if global limit exceeded */
- if (atomic_read(&subscription_count) >= TIPC_MAX_SUBSCRIPTIONS) {
+ if (atomic_read(&tn->subscription_count) >= TIPC_MAX_SUBSCRIPTIONS) {
pr_warn("Subscription rejected, limit reached (%u)\n",
TIPC_MAX_SUBSCRIPTIONS);
return -EINVAL;
@@ -293,10 +273,11 @@ static int subscr_subscribe(struct tipc_subscr *s,
}
/* Initialize subscription object */
+ sub->net = net;
sub->seq.type = htohl(s->seq.type, swap);
sub->seq.lower = htohl(s->seq.lower, swap);
sub->seq.upper = htohl(s->seq.upper, swap);
- sub->timeout = htohl(s->timeout, swap);
+ sub->timeout = msecs_to_jiffies(htohl(s->timeout, swap));
sub->filter = htohl(s->filter, swap);
if ((!(sub->filter & TIPC_SUB_PORTS) ==
!(sub->filter & TIPC_SUB_SERVICE)) ||
@@ -309,11 +290,10 @@ static int subscr_subscribe(struct tipc_subscr *s,
sub->subscriber = subscriber;
sub->swap = swap;
memcpy(&sub->evt.s, s, sizeof(struct tipc_subscr));
- atomic_inc(&subscription_count);
+ atomic_inc(&tn->subscription_count);
if (sub->timeout != TIPC_WAIT_FOREVER) {
- k_init_timer(&sub->timer,
- (Handler)subscr_timeout, (unsigned long)sub);
- k_start_timer(&sub->timer, sub->timeout);
+ setup_timer(&sub->timer, subscr_timeout, (unsigned long)sub);
+ mod_timer(&sub->timer, jiffies + sub->timeout);
}
*sub_p = sub;
return 0;
@@ -326,16 +306,18 @@ static void subscr_conn_shutdown_event(int conid, void *usr_data)
}
/* Handle one request to create a new subscription for the subscriber */
-static void subscr_conn_msg_event(int conid, struct sockaddr_tipc *addr,
- void *usr_data, void *buf, size_t len)
+static void subscr_conn_msg_event(struct net *net, int conid,
+ struct sockaddr_tipc *addr, void *usr_data,
+ void *buf, size_t len)
{
struct tipc_subscriber *subscriber = usr_data;
struct tipc_subscription *sub = NULL;
spin_lock_bh(&subscriber->lock);
- if (subscr_subscribe((struct tipc_subscr *)buf, subscriber, &sub) < 0) {
+ if (subscr_subscribe(net, (struct tipc_subscr *)buf, subscriber,
+ &sub) < 0) {
spin_unlock_bh(&subscriber->lock);
- subscr_terminate(subscriber);
+ subscr_terminate(sub);
return;
}
if (sub)
@@ -343,7 +325,6 @@ static void subscr_conn_msg_event(int conid, struct sockaddr_tipc *addr,
spin_unlock_bh(&subscriber->lock);
}
-
/* Handle one request to establish a new subscriber */
static void *subscr_named_msg_event(int conid)
{
@@ -362,12 +343,50 @@ static void *subscr_named_msg_event(int conid)
return (void *)subscriber;
}
-int tipc_subscr_start(void)
+int tipc_subscr_start(struct net *net)
{
- return tipc_server_start(&topsrv);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ const char name[] = "topology_server";
+ struct tipc_server *topsrv;
+ struct sockaddr_tipc *saddr;
+
+ saddr = kzalloc(sizeof(*saddr), GFP_ATOMIC);
+ if (!saddr)
+ return -ENOMEM;
+ saddr->family = AF_TIPC;
+ saddr->addrtype = TIPC_ADDR_NAMESEQ;
+ saddr->addr.nameseq.type = TIPC_TOP_SRV;
+ saddr->addr.nameseq.lower = TIPC_TOP_SRV;
+ saddr->addr.nameseq.upper = TIPC_TOP_SRV;
+ saddr->scope = TIPC_NODE_SCOPE;
+
+ topsrv = kzalloc(sizeof(*topsrv), GFP_ATOMIC);
+ if (!topsrv) {
+ kfree(saddr);
+ return -ENOMEM;
+ }
+ topsrv->net = net;
+ topsrv->saddr = saddr;
+ topsrv->imp = TIPC_CRITICAL_IMPORTANCE;
+ topsrv->type = SOCK_SEQPACKET;
+ topsrv->max_rcvbuf_size = sizeof(struct tipc_subscr);
+ topsrv->tipc_conn_recvmsg = subscr_conn_msg_event;
+ topsrv->tipc_conn_new = subscr_named_msg_event;
+ topsrv->tipc_conn_shutdown = subscr_conn_shutdown_event;
+
+ strncpy(topsrv->name, name, strlen(name) + 1);
+ tn->topsrv = topsrv;
+ atomic_set(&tn->subscription_count, 0);
+
+ return tipc_server_start(topsrv);
}
-void tipc_subscr_stop(void)
+void tipc_subscr_stop(struct net *net)
{
- tipc_server_stop(&topsrv);
+ struct tipc_net *tn = net_generic(net, tipc_net_id);
+ struct tipc_server *topsrv = tn->topsrv;
+
+ tipc_server_stop(topsrv);
+ kfree(topsrv->saddr);
+ kfree(topsrv);
}
diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h
index 393e417bee3f..33488bd9fe3c 100644
--- a/net/tipc/subscr.h
+++ b/net/tipc/subscr.h
@@ -39,6 +39,9 @@
#include "server.h"
+#define TIPC_MAX_SUBSCRIPTIONS 65535
+#define TIPC_MAX_PUBLICATIONS 65535
+
struct tipc_subscription;
struct tipc_subscriber;
@@ -46,6 +49,7 @@ struct tipc_subscriber;
* struct tipc_subscription - TIPC network topology subscription object
* @subscriber: pointer to its subscriber
* @seq: name sequence associated with subscription
+ * @net: point to network namespace
* @timeout: duration of subscription (in ms)
* @filter: event filtering to be done for subscription
* @timer: timer governing subscription duration (optional)
@@ -58,7 +62,8 @@ struct tipc_subscriber;
struct tipc_subscription {
struct tipc_subscriber *subscriber;
struct tipc_name_seq seq;
- u32 timeout;
+ struct net *net;
+ unsigned long timeout;
u32 filter;
struct timer_list timer;
struct list_head nameseq_list;
@@ -69,13 +74,10 @@ struct tipc_subscription {
int tipc_subscr_overlap(struct tipc_subscription *sub, u32 found_lower,
u32 found_upper);
-
void tipc_subscr_report_overlap(struct tipc_subscription *sub, u32 found_lower,
u32 found_upper, u32 event, u32 port_ref,
u32 node, int must);
-
-int tipc_subscr_start(void);
-
-void tipc_subscr_stop(void);
+int tipc_subscr_start(struct net *net);
+void tipc_subscr_stop(struct net *net);
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-29 14:41:38 +0000