Merge branch 'linus' into release

4 files changed, 58 insertions, 78 deletions

diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index e5872dc994c..fbc48f89852 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -41,6 +41,7 @@ struct nlmclnt_initdata {
 	size_t			addrlen;
 	unsigned short		protocol;
 	u32			nfs_version;
+	int			noresvport;
 };
 
 /*
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index b56d5aa9b19..aa6fe7026de 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -43,12 +43,13 @@ struct nlm_host {
 	struct sockaddr_storage	h_addr;		/* peer address */
 	size_t			h_addrlen;
 	struct sockaddr_storage	h_srcaddr;	/* our address (optional) */
-	struct rpc_clnt	*	h_rpcclnt;	/* RPC client to talk to peer */
-	char *			h_name;		/* remote hostname */
+	struct rpc_clnt		*h_rpcclnt;	/* RPC client to talk to peer */
+	char			*h_name;		/* remote hostname */
 	u32			h_version;	/* interface version */
 	unsigned short		h_proto;	/* transport proto */
 	unsigned short		h_reclaiming : 1,
 				h_server     : 1, /* server side, not client side */
+				h_noresvport : 1,
 				h_inuse      : 1;
 	wait_queue_head_t	h_gracewait;	/* wait while reclaiming */
 	struct rw_semaphore	h_rwsem;	/* Reboot recovery lock */
@@ -63,21 +64,29 @@ struct nlm_host {
 	spinlock_t		h_lock;
 	struct list_head	h_granted;	/* Locks in GRANTED state */
 	struct list_head	h_reclaim;	/* Locks in RECLAIM state */
-	struct nsm_handle *	h_nsmhandle;	/* NSM status handle */
-
-	char			h_addrbuf[48],	/* address eyecatchers */
-				h_srcaddrbuf[48];
+	struct nsm_handle	*h_nsmhandle;	/* NSM status handle */
+	char			*h_addrbuf;	/* address eyecatcher */
 };
 
+/*
+ * The largest string sm_addrbuf should hold is a full-size IPv6 address
+ * (no "::" anywhere) with a scope ID.  The buffer size is computed to
+ * hold eight groups of colon-separated four-hex-digit numbers, a
+ * percent sign, a scope id (at most 32 bits, in decimal), and NUL.
+ */
+#define NSM_ADDRBUF		((8 * 4 + 7) + (1 + 10) + 1)
+
 struct nsm_handle {
 	struct list_head	sm_link;
 	atomic_t		sm_count;
-	char *			sm_name;
+	char			*sm_mon_name;
+	char			*sm_name;
 	struct sockaddr_storage	sm_addr;
 	size_t			sm_addrlen;
 	unsigned int		sm_monitored : 1,
 				sm_sticky : 1;	/* don't unmonitor */
-	char			sm_addrbuf[48];	/* address eyecatcher */
+	struct nsm_private	sm_priv;
+	char			sm_addrbuf[NSM_ADDRBUF];
 };
 
 /*
@@ -103,16 +112,6 @@ static inline struct sockaddr *nlm_srcaddr(const struct nlm_host *host)
 	return (struct sockaddr *)&host->h_srcaddr;
 }
 
-static inline struct sockaddr_in *nsm_addr_in(const struct nsm_handle *handle)
-{
-	return (struct sockaddr_in *)&handle->sm_addr;
-}
-
-static inline struct sockaddr *nsm_addr(const struct nsm_handle *handle)
-{
-	return (struct sockaddr *)&handle->sm_addr;
-}
-
 /*
  * Map an fl_owner_t into a unique 32-bit "pid"
  */
@@ -196,6 +195,7 @@ extern struct svc_procedure	nlmsvc_procedures4[];
 extern int			nlmsvc_grace_period;
 extern unsigned long		nlmsvc_timeout;
 extern int			nsm_use_hostnames;
+extern int			nsm_local_state;
 
 /*
  * Lockd client functions
@@ -220,7 +220,8 @@ struct nlm_host  *nlmclnt_lookup_host(const struct sockaddr *sap,
 					const size_t salen,
 					const unsigned short protocol,
 					const u32 version,
-					const char *hostname);
+					const char *hostname,
+					int noresvport);
 struct nlm_host  *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
 					const char *hostname,
 					const size_t hostname_len);
@@ -229,10 +230,20 @@ void		  nlm_rebind_host(struct nlm_host *);
 struct nlm_host * nlm_get_host(struct nlm_host *);
 void		  nlm_release_host(struct nlm_host *);
 void		  nlm_shutdown_hosts(void);
-extern void	  nlm_host_rebooted(const struct sockaddr_in *, const char *,
-					unsigned int, u32);
-void		  nsm_release(struct nsm_handle *);
+void		  nlm_host_rebooted(const struct nlm_reboot *);
+
+/*
+ * Host monitoring
+ */
+int		  nsm_monitor(const struct nlm_host *host);
+void		  nsm_unmonitor(const struct nlm_host *host);
 
+struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
+					const size_t salen,
+					const char *hostname,
+					const size_t hostname_len);
+struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info);
+void		  nsm_release(struct nsm_handle *nsm);
 
 /*
  * This is used in garbage collection and resource reclaim
@@ -280,16 +291,25 @@ static inline struct inode *nlmsvc_file_inode(struct nlm_file *file)
 static inline int __nlm_privileged_request4(const struct sockaddr *sap)
 {
 	const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
-	return (sin->sin_addr.s_addr == htonl(INADDR_LOOPBACK)) &&
-			(ntohs(sin->sin_port) < 1024);
+
+	if (ntohs(sin->sin_port) > 1023)
+		return 0;
+
+	return ipv4_is_loopback(sin->sin_addr.s_addr);
 }
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 static inline int __nlm_privileged_request6(const struct sockaddr *sap)
 {
 	const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
-	return (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LOOPBACK) &&
-			(ntohs(sin6->sin6_port) < 1024);
+
+	if (ntohs(sin6->sin6_port) > 1023)
+		return 0;
+
+	if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_MAPPED)
+		return ipv4_is_loopback(sin6->sin6_addr.s6_addr32[3]);
+
+	return ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LOOPBACK;
 }
 #else	/* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
 static inline int __nlm_privileged_request6(const struct sockaddr *sap)
diff --git a/include/linux/lockd/sm_inter.h b/include/linux/lockd/sm_inter.h
deleted file mode 100644
index 5a5448bdb17..00000000000
--- a/include/linux/lockd/sm_inter.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * linux/include/linux/lockd/sm_inter.h
- *
- * Declarations for the kernel statd client.
- *
- * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
- */
-
-#ifndef LINUX_LOCKD_SM_INTER_H
-#define LINUX_LOCKD_SM_INTER_H
-
-#define SM_PROGRAM	100024
-#define SM_VERSION	1
-#define SM_STAT		1
-#define SM_MON		2
-#define SM_UNMON	3
-#define SM_UNMON_ALL	4
-#define SM_SIMU_CRASH	5
-#define SM_NOTIFY	6
-
-#define SM_MAXSTRLEN	1024
-#define SM_PRIV_SIZE	16
-
-/*
- * Arguments for all calls to statd
- */
-struct nsm_args {
-	__be32		addr;		/* remote address */
-	u32		prog;		/* RPC callback info */
-	u32		vers;
-	u32		proc;
-
-	char *		mon_name;
-};
-
-/*
- * Result returned by statd
- */
-struct nsm_res {
-	u32		status;
-	u32		state;
-};
-
-int		nsm_monitor(struct nlm_host *);
-int		nsm_unmonitor(struct nlm_host *);
-extern int	nsm_local_state;
-
-#endif /* LINUX_LOCKD_SM_INTER_H */
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index d6b3a802c04..7dc5b6cb44c 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -13,6 +13,13 @@
 #include <linux/nfs.h>
 #include <linux/sunrpc/xdr.h>
 
+#define SM_MAXSTRLEN		1024
+#define SM_PRIV_SIZE		16
+
+struct nsm_private {
+	unsigned char		data[SM_PRIV_SIZE];
+};
+
 struct svc_rqst;
 
 #define NLM_MAXCOOKIELEN    	32
@@ -77,10 +84,10 @@ struct nlm_res {
  * statd callback when client has rebooted
  */
 struct nlm_reboot {
-	char *		mon;
-	unsigned int	len;
-	u32		state;
-	__be32		addr;
+	char			*mon;
+	unsigned int		len;
+	u32			state;
+	struct nsm_private	priv;
 };
 
 /*