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tipc: make tipc node address support net namespace

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If net namespace is supported in tipc, each namespace will be treated
as a separate tipc node. Therefore, every namespace must own its
private tipc node address. This means the "tipc_own_addr" global
variable of node address must be moved to tipc_net structure to
satisfy the requirement. It's turned out that users also can assign
node address for every namespace.

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 15:27:10 +08:00
committed by David S. Miller
parent 4ac1c8d0ee
commit 3474753954
17 changed files with 246 additions and 194 deletions
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43
net/tipc/addr.c
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@@ -36,6 +36,49 @@
#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