SUNRPC: pass network namespace to service registering routines

Lockd and NFSd services will handle requests from and to many network
nsamespaces. And thus have to be registered and unregistered per network
namespace.

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

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 35b37b1e9299e37825fe79a281a29055aa4d273a..d3563c2a5808bbaafee69a5a099a66eecab5c7e7 100644 (file)
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -428,7 +428,7 @@ void                   svc_destroy(struct svc_serv *);
 int               svc_process(struct svc_rqst *);
 int               bc_svc_process(struct svc_serv *, struct rpc_rqst *,
                        struct svc_rqst *);
-int               svc_register(const struct svc_serv *, const int,
+int               svc_register(const struct svc_serv *, struct net *, const int,
                                const unsigned short, const unsigned short);
 
 void              svc_wake_up(struct svc_serv *);

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 0aee925fbd73db4fe3ccd956043108b20d124510..a2d3330b70dece76e07fb75f6ec414ccc6bb7df9 100644 (file)
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -30,7 +30,7 @@
 
 #define RPCDBG_FACILITY        RPCDBG_SVCDSP
 
-static void svc_unregister(const struct svc_serv *serv);
+static void svc_unregister(const struct svc_serv *serv, struct net *net);
 
 #define svc_serv_is_pooled(serv)    ((serv)->sv_function)
 
@@ -377,13 +377,13 @@ static int svc_rpcb_setup(struct svc_serv *serv)
                return err;
 
        /* Remove any stale portmap registrations */
-       svc_unregister(serv);
+       svc_unregister(serv, &init_net);
        return 0;
 }
 
 void svc_rpcb_cleanup(struct svc_serv *serv)
 {
-       svc_unregister(serv);
+       svc_unregister(serv, &init_net);
        rpcb_put_local(&init_net);
 }
 EXPORT_SYMBOL_GPL(svc_rpcb_cleanup);
@@ -795,7 +795,8 @@ EXPORT_SYMBOL_GPL(svc_exit_thread);
  * Returns zero on success; a negative errno value is returned
  * if any error occurs.
  */
-static int __svc_rpcb_register4(const u32 program, const u32 version,
+static int __svc_rpcb_register4(struct net *net, const u32 program,
+                               const u32 version,
                                const unsigned short protocol,
                                const unsigned short port)
 {
@@ -818,7 +819,7 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
                return -ENOPROTOOPT;
        }
 
-       error = rpcb_v4_register(&init_net, program, version,
+       error = rpcb_v4_register(net, program, version,
                                        (const struct sockaddr *)&sin, netid);
 
        /*
@@ -826,7 +827,7 @@ 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(&init_net, program, version, protocol, port);
+               error = rpcb_register(net, program, version, protocol, port);
 
        return error;
 }
@@ -842,7 +843,8 @@ static int __svc_rpcb_register4(const u32 program, const u32 version,
  * Returns zero on success; a negative errno value is returned
  * if any error occurs.
  */
-static int __svc_rpcb_register6(const u32 program, const u32 version,
+static int __svc_rpcb_register6(struct net *net, const u32 program,
+                               const u32 version,
                                const unsigned short protocol,
                                const unsigned short port)
 {
@@ -865,7 +867,7 @@ static int __svc_rpcb_register6(const u32 program, const u32 version,
                return -ENOPROTOOPT;
        }
 
-       error = rpcb_v4_register(&init_net, program, version,
+       error = rpcb_v4_register(net, program, version,
                                        (const struct sockaddr *)&sin6, netid);
 
        /*
@@ -885,7 +887,7 @@ static int __svc_rpcb_register6(const u32 program, const u32 version,
  * Returns zero on success; a negative errno value is returned
  * if any error occurs.
  */
-static int __svc_register(const char *progname,
+static int __svc_register(struct net *net, const char *progname,
                          const u32 program, const u32 version,
                          const int family,
                          const unsigned short protocol,
@@ -895,12 +897,12 @@ static int __svc_register(const char *progname,
 
        switch (family) {
        case PF_INET:
-               error = __svc_rpcb_register4(program, version,
+               error = __svc_rpcb_register4(net, program, version,
                                                protocol, port);
                break;
 #if IS_ENABLED(CONFIG_IPV6)
        case PF_INET6:
-               error = __svc_rpcb_register6(program, version,
+               error = __svc_rpcb_register6(net, program, version,
                                                protocol, port);
 #endif
        }
@@ -914,14 +916,16 @@ static int __svc_register(const char *progname,
 /**
  * svc_register - register an RPC service with the local portmapper
  * @serv: svc_serv struct for the service to register
+ * @net: net namespace for the service to register
  * @family: protocol family of service's listener socket
  * @proto: transport protocol number to advertise
  * @port: port to advertise
  *
  * Service is registered for any address in the passed-in protocol family
  */
-int svc_register(const struct svc_serv *serv, const int family,
-                const unsigned short proto, const unsigned short port)
+int svc_register(const struct svc_serv *serv, struct net *net,
+                const int family, const unsigned short proto,
+                const unsigned short port)
 {
        struct svc_program      *progp;
        unsigned int            i;
@@ -946,7 +950,7 @@ int svc_register(const struct svc_serv *serv, const int family,
                        if (progp->pg_vers[i]->vs_hidden)
                                continue;
 
-                       error = __svc_register(progp->pg_name, progp->pg_prog,
+                       error = __svc_register(net, progp->pg_name, progp->pg_prog,
                                                i, family, proto, port);
                        if (error < 0)
                                break;
@@ -963,19 +967,19 @@ int svc_register(const struct svc_serv *serv, const int family,
  * any "inet6" entries anyway.  So a PMAP_UNSET should be sufficient
  * in this case to clear all existing entries for [program, version].
  */
-static void __svc_unregister(const u32 program, const u32 version,
+static void __svc_unregister(struct net *net, const u32 program, const u32 version,
                             const char *progname)
 {
        int error;
 
-       error = rpcb_v4_register(&init_net, program, version, NULL, "");
+       error = rpcb_v4_register(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(&init_net, program, version, 0, 0);
+               error = rpcb_register(net, program, version, 0, 0);
 
        dprintk("svc: %s(%sv%u), error %d\n",
                        __func__, progname, version, error);
@@ -989,7 +993,7 @@ static void __svc_unregister(const u32 program, const u32 version,
  * The result of unregistration is reported via dprintk for those who want
  * verification of the result, but is otherwise not important.
  */
-static void svc_unregister(const struct svc_serv *serv)
+static void svc_unregister(const struct svc_serv *serv, struct net *net)
 {
        struct svc_program *progp;
        unsigned long flags;
@@ -1006,7 +1010,7 @@ static void svc_unregister(const struct svc_serv *serv)
 
                        dprintk("svc: attempting to unregister %sv%u\n",
                                progp->pg_name, i);
-                       __svc_unregister(progp->pg_prog, i, progp->pg_name);
+                       __svc_unregister(net, progp->pg_prog, i, progp->pg_name);
                }
        }
 

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 464570906f80c24190260bef957a53128202a486..e8af0c9e436b25483c5fd250fddad4fe3cca2b68 100644 (file)
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1409,7 +1409,8 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
 
        /* Register socket with portmapper */
        if (*errp >= 0 && pmap_register)
-               *errp = svc_register(serv, inet->sk_family, inet->sk_protocol,
+               *errp = svc_register(serv, sock->sk->sk_net, inet->sk_family,
+                                    inet->sk_protocol,
                                     ntohs(inet_sk(inet)->inet_sport));
 
        if (*errp < 0) {