SUNRPC: move per-transport rpcbind netid's

Move the TCP/UDP rpcbind netid's from the rpcbind client to a global header.

Signed-off-by: Tom Talpey <tmt@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 16 insertions, 23 deletions

diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 784d4c3ef651..c4beb5775111 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -138,6 +138,19 @@ typedef __be32	rpc_fraghdr;
 #define RPC_MAX_HEADER_WITH_AUTH \
         (RPC_CALLHDRSIZE + 2*(2+RPC_MAX_AUTH_SIZE/4))
 
+/*
+ * RFC1833/RFC3530 rpcbind (v3+) well-known netid's.
+ */
+#define RPCBIND_NETID_UDP       "udp"
+#define RPCBIND_NETID_TCP       "tcp"
+#define RPCBIND_NETID_UDP6      "udp6"
+#define RPCBIND_NETID_TCP6      "tcp6"
+
+/*
+ * Note that RFC 1833 does not put any size restrictions on the
+ * netid string, but all currently defined netid's fit in 4 bytes.
+ */
+#define RPCBIND_MAXNETIDLEN     (4u)
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SUNRPC_MSGPROT_H_ */
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index d7b9f02489e6..b028a0ecd593 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -93,26 +93,6 @@ enum {
 #define RPCB_MAXADDRLEN         (128u)
 
 /*
- * r_netid
- *
- * Quoting RFC 3530, section 2.2:
- *
- * For TCP over IPv4 the value of r_netid is the string "tcp".  For UDP
- * over IPv4 the value of r_netid is the string "udp".
- *
- * ...
- *
- * For TCP over IPv6 the value of r_netid is the string "tcp6".  For UDP
- * over IPv6 the value of r_netid is the string "udp6".
- */
-#define RPCB_NETID_UDP  "\165\144\160"          /* "udp" */
-#define RPCB_NETID_TCP  "\164\143\160"          /* "tcp" */
-#define RPCB_NETID_UDP6 "\165\144\160\066"      /* "udp6" */
-#define RPCB_NETID_TCP6 "\164\143\160\066"      /* "tcp6" */
-
-#define RPCB_MAXNETIDLEN        (4u)
-
-/*
  * r_owner
  *
  * The "owner" is allowed to unset a service in the rpcbind database.
@@ -408,8 +388,8 @@ void rpcb_getport_async(struct rpc_task *task)
         map->r_prot = xprt->prot;
         map->r_port = 0;
         map->r_xprt = xprt_get(xprt);
-        map->r_netid = (xprt->prot == IPPROTO_TCP) ? RPCB_NETID_TCP :
-                                                   RPCB_NETID_UDP;
+        map->r_netid = (xprt->prot == IPPROTO_TCP) ? RPCBIND_NETID_TCP :
+                                                     RPCBIND_NETID_UDP;
         memcpy(map->r_addr,
                rpc_peeraddr2str(rpcb_clnt, RPC_DISPLAY_UNIVERSAL_ADDR),
                sizeof(map->r_addr));
@@ -587,7 +567,7 @@ out_err:
 #define RPCB_port_sz            (1u)
 #define RPCB_boolean_sz         (1u)
 
-#define RPCB_netid_sz           (1+XDR_QUADLEN(RPCB_MAXNETIDLEN))
+#define RPCB_netid_sz           (1+XDR_QUADLEN(RPCBIND_MAXNETIDLEN))
 #define RPCB_addr_sz            (1+XDR_QUADLEN(RPCB_MAXADDRLEN))
 #define RPCB_ownerstring_sz     (1+XDR_QUADLEN(RPCB_MAXOWNERLEN))