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tipc: make bearer list support net namespace

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Bearer list defined as a global variable is used to store bearer
instances. When tipc supports net namespace, bearers created in
one namespace must be isolated with others allocated in other
namespaces, which requires us that the bearer list(bearer_list)
must be moved to tipc_net structure. As a result, a net namespace
pointer has to be passed to functions which access the bearer list.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Tested-by: Tero Aho <Tero.Aho@coriant.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue
2015-01-09 15:27:06 +08:00
committed by David S. Miller
parent f2f9800d49
commit 7f9f95d9d9
10 changed files with 110 additions and 73 deletions
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12
net/tipc/discover.c
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@@ -51,6 +51,7 @@
/**
* 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)
@@ -62,6 +63,7 @@
struct tipc_link_req {
u32 bearer_id;
struct tipc_media_addr dest;
struct net *net;
u32 domain;
int num_nodes;
spinlock_t lock;
@@ -254,7 +256,7 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *buf,
rbuf = tipc_buf_acquire(INT_H_SIZE);
if (rbuf) {
tipc_disc_init_msg(net, rbuf, DSC_RESP_MSG, bearer);
tipc_bearer_send(bearer->identity, rbuf, &maddr);
tipc_bearer_send(net, bearer->identity, rbuf, &maddr);
kfree_skb(rbuf);
}
}
@@ -328,7 +330,7 @@ static void disc_timeout(unsigned long data)
* 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;
@@ -370,6 +372,7 @@ int tipc_disc_create(struct net *net, struct tipc_bearer *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;
@@ -378,7 +381,7 @@ int tipc_disc_create(struct net *net, struct tipc_bearer *b_ptr,
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;
}
@@ -405,11 +408,12 @@ void tipc_disc_reset(struct net *net, struct tipc_bearer *b_ptr)
spin_lock_bh(&req->lock);
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;
mod_timer(&req->timer, jiffies + req->timer_intv);
tipc_bearer_send(req->bearer_id, req->buf, &req->dest);
tipc_bearer_send(net, req->bearer_id, req->buf, &req->dest);
spin_unlock_bh(&req->lock);
}