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Subject[PATCH 2/7] SUNRPC: register rpcbind programs in passed network namespase context
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Date
Registering rpcbind program requires rpcbind clients, which are per network
namespace context.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>

---
include/linux/sunrpc/clnt.h | 5 +++--
net/sunrpc/rpcb_clnt.c | 8 ++++----
net/sunrpc/svc.c | 10 +++++-----
3 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 53afa56..1e56469 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -138,8 +138,9 @@ void rpc_task_release_client(struct rpc_task *);

int rpcb_create_local(void);
void rpcb_put_local(void);
-int rpcb_register(u32, u32, int, unsigned short);
-int rpcb_v4_register(const u32 program, const u32 version,
+int rpcb_register(struct net *, u32, u32, int, unsigned short);
+int rpcb_v4_register(struct net *net, const u32 program,
+ const u32 version,
const struct sockaddr *address,
const char *netid);
void rpcb_getport_async(struct rpc_task *);
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 43eff03..ea87b0c 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -425,7 +425,7 @@ static int rpcb_register_call(struct rpc_clnt *clnt, struct rpc_message *msg)
* IN6ADDR_ANY (ie available for all AF_INET and AF_INET6
* addresses).
*/
-int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
+int rpcb_register(struct net *net, u32 prog, u32 vers, int prot, unsigned short port)
{
struct rpcbind_args map = {
.r_prog = prog,
@@ -436,7 +436,7 @@ int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port)
struct rpc_message msg = {
.rpc_argp = &map,
};
- struct sunrpc_net *sn = net_generic(&init_net, sunrpc_net_id);
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);

dprintk("RPC: %sregistering (%u, %u, %d, %u) with local "
"rpcbind\n", (port ? "" : "un"),
@@ -563,7 +563,7 @@ static int rpcb_unregister_all_protofamilies(struct sunrpc_net *sn,
* service on any IPv4 address, but not on IPv6. The latter
* advertises the service on all IPv4 and IPv6 addresses.
*/
-int rpcb_v4_register(const u32 program, const u32 version,
+int rpcb_v4_register(struct net *net, const u32 program, const u32 version,
const struct sockaddr *address, const char *netid)
{
struct rpcbind_args map = {
@@ -575,7 +575,7 @@ int rpcb_v4_register(const u32 program, const u32 version,
struct rpc_message msg = {
.rpc_argp = &map,
};
- struct sunrpc_net *sn = net_generic(&init_net, sunrpc_net_id);
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);

if (sn->rpcb_local_clnt4 == NULL)
return -EPROTONOSUPPORT;
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 6e03888..e9c42ad 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -813,7 +813,7 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
return -ENOPROTOOPT;
}

- error = rpcb_v4_register(program, version,
+ error = rpcb_v4_register(&init_net, program, version,
(const struct sockaddr *)&sin, netid);

/*
@@ -821,7 +821,7 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
* registration request with the legacy rpcbind v2 protocol.
*/
if (error == -EPROTONOSUPPORT)
- error = rpcb_register(program, version, protocol, port);
+ error = rpcb_register(&init_net, program, version, protocol, port);

return error;
}
@@ -860,7 +860,7 @@ static int __svc_rpcb_register6(const u32 program, const u32 version,
return -ENOPROTOOPT;
}

- error = rpcb_v4_register(program, version,
+ error = rpcb_v4_register(&init_net, program, version,
(const struct sockaddr *)&sin6, netid);

/*
@@ -963,14 +963,14 @@ static void __svc_unregister(const u32 program, const u32 version,
{
int error;

- error = rpcb_v4_register(program, version, NULL, "");
+ error = rpcb_v4_register(&init_net, program, version, NULL, "");

/*
* User space didn't support rpcbind v4, so retry this
* request with the legacy rpcbind v2 protocol.
*/
if (error == -EPROTONOSUPPORT)
- error = rpcb_register(program, version, 0, 0);
+ error = rpcb_register(&init_net, program, version, 0, 0);

dprintk("svc: %s(%sv%u), error %d\n",
__func__, progname, version, error);


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