[klibc 14/43] Remove in-kernel nfsroot code

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The in-kernel nfsroot code is obsoleted by kinit.  Remove it; it
causes conflicts.

Signed-off-by: H. Peter Anvin <[email protected]>

---
commit 161e1dc16ec1129b30b634a2a8dcbbd1937800c5
tree c30da837d746fe65d8a13ccf6f27bd381948edb4
parent 018604e070e143657abcf0cb256a1e2dda205d97
author H. Peter Anvin <[email protected]> Sat, 20 May 2006 16:24:05 -0700
committer H. Peter Anvin <[email protected]> Sun, 18 Jun 2006 18:51:32 -0700

 fs/Kconfig          |   14 -
 fs/nfs/Makefile     |    1 
 fs/nfs/mount_clnt.c |  191 -------------------
 fs/nfs/nfsroot.c    |  525 ---------------------------------------------------
 4 files changed, 0 insertions(+), 731 deletions(-)

diff --git a/fs/Kconfig b/fs/Kconfig
index f9b5842..71d6b30 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1498,20 +1498,6 @@ config NFSD_TCP
 	  TCP connections usually perform better than the default UDP when
 	  the network is lossy or congested.  If unsure, say Y.
 
-config ROOT_NFS
-	bool "Root file system on NFS"
-	depends on NFS_FS=y && IP_PNP
-	help
-	  If you want your Linux box to mount its whole root file system (the
-	  one containing the directory /) from some other computer over the
-	  net via NFS (presumably because your box doesn't have a hard disk),
-	  say Y. Read <file:Documentation/nfsroot.txt> for details. It is
-	  likely that in this case, you also want to say Y to "Kernel level IP
-	  autoconfiguration" so that your box can discover its network address
-	  at boot time.
-
-	  Most people say N here.
-
 config LOCKD
 	tristate
 
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index ec61fd5..a06c590 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -6,7 +6,6 @@ obj-$(CONFIG_NFS_FS) += nfs.o
 
 nfs-y 			:= dir.o file.o inode.o nfs2xdr.o pagelist.o \
 			   proc.o read.o symlink.o unlink.o write.o
-nfs-$(CONFIG_ROOT_NFS)	+= nfsroot.o mount_clnt.o      
 nfs-$(CONFIG_NFS_V3)	+= nfs3proc.o nfs3xdr.o
 nfs-$(CONFIG_NFS_V3_ACL)	+= nfs3acl.o
 nfs-$(CONFIG_NFS_V4)	+= nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
deleted file mode 100644
index 445abb4..0000000
--- a/fs/nfs/mount_clnt.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * linux/fs/nfs/mount_clnt.c
- *
- * MOUNT client to support NFSroot.
- *
- * Copyright (C) 1997, Olaf Kirch <[email protected]>
- */
-
-#include <linux/types.h>
-#include <linux/socket.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/uio.h>
-#include <linux/net.h>
-#include <linux/in.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/sunrpc/xprt.h>
-#include <linux/sunrpc/sched.h>
-#include <linux/nfs_fs.h>
-
-#ifdef RPC_DEBUG
-# define NFSDBG_FACILITY	NFSDBG_ROOT
-#endif
-
-/*
-#define MOUNT_PROGRAM		100005
-#define MOUNT_VERSION		1
-#define MOUNT_MNT		1
-#define MOUNT_UMNT		3
- */
-
-static struct rpc_clnt *	mnt_create(char *, struct sockaddr_in *,
-								int, int);
-static struct rpc_program	mnt_program;
-
-struct mnt_fhstatus {
-	unsigned int		status;
-	struct nfs_fh *		fh;
-};
-
-/*
- * Obtain an NFS file handle for the given host and path
- */
-int
-nfsroot_mount(struct sockaddr_in *addr, char *path, struct nfs_fh *fh,
-		int version, int protocol)
-{
-	struct rpc_clnt		*mnt_clnt;
-	struct mnt_fhstatus	result = {
-		.fh		= fh
-	};
-	struct rpc_message msg	= {
-		.rpc_argp	= path,
-		.rpc_resp	= &result,
-	};
-	char			hostname[32];
-	int			status;
-
-	dprintk("NFS:      nfs_mount(%08x:%s)\n",
-			(unsigned)ntohl(addr->sin_addr.s_addr), path);
-
-	sprintf(hostname, "%u.%u.%u.%u", NIPQUAD(addr->sin_addr.s_addr));
-	mnt_clnt = mnt_create(hostname, addr, version, protocol);
-	if (IS_ERR(mnt_clnt))
-		return PTR_ERR(mnt_clnt);
-
-	if (version == NFS_MNT3_VERSION)
-		msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC3_MNT];
-	else
-		msg.rpc_proc = &mnt_clnt->cl_procinfo[MNTPROC_MNT];
-
-	status = rpc_call_sync(mnt_clnt, &msg, 0);
-	return status < 0? status : (result.status? -EACCES : 0);
-}
-
-static struct rpc_clnt *
-mnt_create(char *hostname, struct sockaddr_in *srvaddr, int version,
-		int protocol)
-{
-	struct rpc_xprt	*xprt;
-	struct rpc_clnt	*clnt;
-
-	xprt = xprt_create_proto(protocol, srvaddr, NULL);
-	if (IS_ERR(xprt))
-		return (struct rpc_clnt *)xprt;
-
-	clnt = rpc_create_client(xprt, hostname,
-				&mnt_program, version,
-				RPC_AUTH_UNIX);
-	if (!IS_ERR(clnt)) {
-		clnt->cl_softrtry = 1;
-		clnt->cl_oneshot  = 1;
-		clnt->cl_intr = 1;
-	}
-	return clnt;
-}
-
-/*
- * XDR encode/decode functions for MOUNT
- */
-static int
-xdr_encode_dirpath(struct rpc_rqst *req, u32 *p, const char *path)
-{
-	p = xdr_encode_string(p, path);
-
-	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
-	return 0;
-}
-
-static int
-xdr_decode_fhstatus(struct rpc_rqst *req, u32 *p, struct mnt_fhstatus *res)
-{
-	struct nfs_fh *fh = res->fh;
-
-	if ((res->status = ntohl(*p++)) == 0) {
-		fh->size = NFS2_FHSIZE;
-		memcpy(fh->data, p, NFS2_FHSIZE);
-	}
-	return 0;
-}
-
-static int
-xdr_decode_fhstatus3(struct rpc_rqst *req, u32 *p, struct mnt_fhstatus *res)
-{
-	struct nfs_fh *fh = res->fh;
-
-	if ((res->status = ntohl(*p++)) == 0) {
-		int size = ntohl(*p++);
-		if (size <= NFS3_FHSIZE) {
-			fh->size = size;
-			memcpy(fh->data, p, size);
-		} else
-			res->status = -EBADHANDLE;
-	}
-	return 0;
-}
-
-#define MNT_dirpath_sz		(1 + 256)
-#define MNT_fhstatus_sz		(1 + 8)
-
-static struct rpc_procinfo	mnt_procedures[] = {
-[MNTPROC_MNT] = {
-	  .p_proc		= MNTPROC_MNT,
-	  .p_encode		= (kxdrproc_t) xdr_encode_dirpath,	
-	  .p_decode		= (kxdrproc_t) xdr_decode_fhstatus,
-	  .p_bufsiz		= MNT_dirpath_sz << 2,
-	  .p_statidx		= MNTPROC_MNT,
-	  .p_name		= "MOUNT",
-	},
-};
-
-static struct rpc_procinfo mnt3_procedures[] = {
-[MOUNTPROC3_MNT] = {
-	  .p_proc		= MOUNTPROC3_MNT,
-	  .p_encode		= (kxdrproc_t) xdr_encode_dirpath,
-	  .p_decode		= (kxdrproc_t) xdr_decode_fhstatus3,
-	  .p_bufsiz		= MNT_dirpath_sz << 2,
-	  .p_statidx		= MOUNTPROC3_MNT,
-	  .p_name		= "MOUNT",
-	},
-};
-
-
-static struct rpc_version	mnt_version1 = {
-		.number		= 1,
-		.nrprocs 	= 2,
-		.procs 		= mnt_procedures
-};
-
-static struct rpc_version       mnt_version3 = {
-		.number		= 3,
-		.nrprocs	= 2,
-		.procs		= mnt3_procedures
-};
-
-static struct rpc_version *	mnt_version[] = {
-	NULL,
-	&mnt_version1,
-	NULL,
-	&mnt_version3,
-};
-
-static struct rpc_stat		mnt_stats;
-
-static struct rpc_program	mnt_program = {
-	.name		= "mount",
-	.number		= NFS_MNT_PROGRAM,
-	.nrvers		= ARRAY_SIZE(mnt_version),
-	.version	= mnt_version,
-	.stats		= &mnt_stats,
-};
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
deleted file mode 100644
index c0a754e..0000000
--- a/fs/nfs/nfsroot.c
+++ /dev/null
@@ -1,525 +0,0 @@
-/*
- *  $Id: nfsroot.c,v 1.45 1998/03/07 10:44:46 mj Exp $
- *
- *  Copyright (C) 1995, 1996  Gero Kuhlmann <[email protected]>
- *
- *  Allow an NFS filesystem to be mounted as root. The way this works is:
- *     (1) Use the IP autoconfig mechanism to set local IP addresses and routes.
- *     (2) Handle RPC negotiation with the system which replied to RARP or
- *         was reported as a boot server by BOOTP or manually.
- *     (3) The actual mounting is done later, when init() is running.
- *
- *
- *	Changes:
- *
- *	Alan Cox	:	Removed get_address name clash with FPU.
- *	Alan Cox	:	Reformatted a bit.
- *	Gero Kuhlmann	:	Code cleanup
- *	Michael Rausch  :	Fixed recognition of an incoming RARP answer.
- *	Martin Mares	: (2.0)	Auto-configuration via BOOTP supported.
- *	Martin Mares	:	Manual selection of interface & BOOTP/RARP.
- *	Martin Mares	:	Using network routes instead of host routes,
- *				allowing the default configuration to be used
- *				for normal operation of the host.
- *	Martin Mares	:	Randomized timer with exponential backoff
- *				installed to minimize network congestion.
- *	Martin Mares	:	Code cleanup.
- *	Martin Mares	: (2.1)	BOOTP and RARP made configuration options.
- *	Martin Mares	:	Server hostname generation fixed.
- *	Gerd Knorr	:	Fixed wired inode handling
- *	Martin Mares	: (2.2)	"0.0.0.0" addresses from command line ignored.
- *	Martin Mares	:	RARP replies not tested for server address.
- *	Gero Kuhlmann	: (2.3) Some bug fixes and code cleanup again (please
- *				send me your new patches _before_ bothering
- *				Linus so that I don' always have to cleanup
- *				_afterwards_ - thanks)
- *	Gero Kuhlmann	:	Last changes of Martin Mares undone.
- *	Gero Kuhlmann	: 	RARP replies are tested for specified server
- *				again. However, it's now possible to have
- *				different RARP and NFS servers.
- *	Gero Kuhlmann	:	"0.0.0.0" addresses from command line are
- *				now mapped to INADDR_NONE.
- *	Gero Kuhlmann	:	Fixed a bug which prevented BOOTP path name
- *				from being used (thanks to Leo Spiekman)
- *	Andy Walker	:	Allow to specify the NFS server in nfs_root
- *				without giving a path name
- *	Swen Thümmler	:	Allow to specify the NFS options in nfs_root
- *				without giving a path name. Fix BOOTP request
- *				for domainname (domainname is NIS domain, not
- *				DNS domain!). Skip dummy devices for BOOTP.
- *	Jacek Zapala	:	Fixed a bug which prevented server-ip address
- *				from nfsroot parameter from being used.
- *	Olaf Kirch	:	Adapted to new NFS code.
- *	Jakub Jelinek	:	Free used code segment.
- *	Marko Kohtala	:	Fixed some bugs.
- *	Martin Mares	:	Debug message cleanup
- *	Martin Mares	:	Changed to use the new generic IP layer autoconfig
- *				code. BOOTP and RARP moved there.
- *	Martin Mares	:	Default path now contains host name instead of
- *				host IP address (but host name defaults to IP
- *				address anyway).
- *	Martin Mares	:	Use root_server_addr appropriately during setup.
- *	Martin Mares	:	Rewrote parameter parsing, now hopefully giving
- *				correct overriding.
- *	Trond Myklebust :	Add in preliminary support for NFSv3 and TCP.
- *				Fix bug in root_nfs_addr(). nfs_data.namlen
- *				is NOT for the length of the hostname.
- *	Hua Qin		:	Support for mounting root file system via
- *				NFS over TCP.
- *	Fabian Frederick:	Option parser rebuilt (using parser lib)
-*/
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/nfs.h>
-#include <linux/nfs_fs.h>
-#include <linux/nfs_mount.h>
-#include <linux/in.h>
-#include <linux/major.h>
-#include <linux/utsname.h>
-#include <linux/inet.h>
-#include <linux/root_dev.h>
-#include <net/ipconfig.h>
-#include <linux/parser.h>
-
-/* Define this to allow debugging output */
-#undef NFSROOT_DEBUG
-#define NFSDBG_FACILITY NFSDBG_ROOT
-
-/* Default path we try to mount. "%s" gets replaced by our IP address */
-#define NFS_ROOT		"/tftpboot/%s"
-
-/* Parameters passed from the kernel command line */
-static char nfs_root_name[256] __initdata = "";
-
-/* Address of NFS server */
-static __u32 servaddr __initdata = 0;
-
-/* Name of directory to mount */
-static char nfs_path[NFS_MAXPATHLEN] __initdata = { 0, };
-
-/* NFS-related data */
-static struct nfs_mount_data nfs_data __initdata = { 0, };/* NFS mount info */
-static int nfs_port __initdata = 0;		/* Port to connect to for NFS */
-static int mount_port __initdata = 0;		/* Mount daemon port number */
-
-
-/***************************************************************************
-
-			     Parsing of options
-
- ***************************************************************************/
-
-enum {
-	/* Options that take integer arguments */
-	Opt_port, Opt_rsize, Opt_wsize, Opt_timeo, Opt_retrans, Opt_acregmin,
-	Opt_acregmax, Opt_acdirmin, Opt_acdirmax,
-	/* Options that take no arguments */
-	Opt_soft, Opt_hard, Opt_intr,
-	Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac, 
-	Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp,
-	Opt_acl, Opt_noacl,
-	/* Error token */
-	Opt_err
-};
-
-static match_table_t __initdata tokens = {
-	{Opt_port, "port=%u"},
-	{Opt_rsize, "rsize=%u"},
-	{Opt_wsize, "wsize=%u"},
-	{Opt_timeo, "timeo=%u"},
-	{Opt_retrans, "retrans=%u"},
-	{Opt_acregmin, "acregmin=%u"},
-	{Opt_acregmax, "acregmax=%u"},
-	{Opt_acdirmin, "acdirmin=%u"},
-	{Opt_acdirmax, "acdirmax=%u"},
-	{Opt_soft, "soft"},
-	{Opt_hard, "hard"},
-	{Opt_intr, "intr"},
-	{Opt_nointr, "nointr"},
-	{Opt_posix, "posix"},
-	{Opt_noposix, "noposix"},
-	{Opt_cto, "cto"},
-	{Opt_nocto, "nocto"},
-	{Opt_ac, "ac"},
-	{Opt_noac, "noac"},
-	{Opt_lock, "lock"},
-	{Opt_nolock, "nolock"},
-	{Opt_v2, "nfsvers=2"},
-	{Opt_v2, "v2"},
-	{Opt_v3, "nfsvers=3"},
-	{Opt_v3, "v3"},
-	{Opt_udp, "proto=udp"},
-	{Opt_udp, "udp"},
-	{Opt_tcp, "proto=tcp"},
-	{Opt_tcp, "tcp"},
-	{Opt_acl, "acl"},
-	{Opt_noacl, "noacl"},
-	{Opt_err, NULL}
-	
-};
-
-/*
- *  Parse option string.
- */
-
-static int __init root_nfs_parse(char *name, char *buf)
-{
-
-	char *p;
-	substring_t args[MAX_OPT_ARGS];
-	int option;
-
-	if (!name)
-		return 1;
-
-	/* Set the NFS remote path */
-	p = strsep(&name, ",");
-	if (p[0] != '\0' && strcmp(p, "default") != 0)
-		strlcpy(buf, p, NFS_MAXPATHLEN);
-
-	while ((p = strsep (&name, ",")) != NULL) {
-		int token; 
-		if (!*p)
-			continue;
-		token = match_token(p, tokens, args);
-
-		/* %u tokens only. Beware if you add new tokens! */
-		if (token < Opt_soft && match_int(&args[0], &option))
-			return 0;
-		switch (token) {
-			case Opt_port:
-				nfs_port = option;
-				break;
-			case Opt_rsize:
-				nfs_data.rsize = option;
-				break;
-			case Opt_wsize:
-				nfs_data.wsize = option;
-				break;
-			case Opt_timeo:
-				nfs_data.timeo = option;
-				break;
-			case Opt_retrans:
-				nfs_data.retrans = option;
-				break;
-			case Opt_acregmin:
-				nfs_data.acregmin = option;
-				break;
-			case Opt_acregmax:
-				nfs_data.acregmax = option;
-				break;
-			case Opt_acdirmin:
-				nfs_data.acdirmin = option;
-				break;
-			case Opt_acdirmax:
-				nfs_data.acdirmax = option;
-				break;
-			case Opt_soft:
-				nfs_data.flags |= NFS_MOUNT_SOFT;
-				break;
-			case Opt_hard:
-				nfs_data.flags &= ~NFS_MOUNT_SOFT;
-				break;
-			case Opt_intr:
-				nfs_data.flags |= NFS_MOUNT_INTR;
-				break;
-			case Opt_nointr:
-				nfs_data.flags &= ~NFS_MOUNT_INTR;
-				break;
-			case Opt_posix:
-				nfs_data.flags |= NFS_MOUNT_POSIX;
-				break;
-			case Opt_noposix:
-				nfs_data.flags &= ~NFS_MOUNT_POSIX;
-				break;
-			case Opt_cto:
-				nfs_data.flags &= ~NFS_MOUNT_NOCTO;
-				break;
-			case Opt_nocto:
-				nfs_data.flags |= NFS_MOUNT_NOCTO;
-				break;
-			case Opt_ac:
-				nfs_data.flags &= ~NFS_MOUNT_NOAC;
-				break;
-			case Opt_noac:
-				nfs_data.flags |= NFS_MOUNT_NOAC;
-				break;
-			case Opt_lock:
-				nfs_data.flags &= ~NFS_MOUNT_NONLM;
-				break;
-			case Opt_nolock:
-				nfs_data.flags |= NFS_MOUNT_NONLM;
-				break;
-			case Opt_v2:
-				nfs_data.flags &= ~NFS_MOUNT_VER3;
-				break;
-			case Opt_v3:
-				nfs_data.flags |= NFS_MOUNT_VER3;
-				break;
-			case Opt_udp:
-				nfs_data.flags &= ~NFS_MOUNT_TCP;
-				break;
-			case Opt_tcp:
-				nfs_data.flags |= NFS_MOUNT_TCP;
-				break;
-			case Opt_acl:
-				nfs_data.flags &= ~NFS_MOUNT_NOACL;
-				break;
-			case Opt_noacl:
-				nfs_data.flags |= NFS_MOUNT_NOACL;
-				break;
-			default:
-				printk(KERN_WARNING "Root-NFS: unknown "
-					"option: %s\n", p);
-				return 0;
-		}
-	}
-
-	return 1;
-}
-
-/*
- *  Prepare the NFS data structure and parse all options.
- */
-static int __init root_nfs_name(char *name)
-{
-	static char buf[NFS_MAXPATHLEN] __initdata;
-	char *cp;
-
-	/* Set some default values */
-	memset(&nfs_data, 0, sizeof(nfs_data));
-	nfs_port          = -1;
-	nfs_data.version  = NFS_MOUNT_VERSION;
-	nfs_data.flags    = NFS_MOUNT_NONLM;	/* No lockd in nfs root yet */
-	nfs_data.rsize    = NFS_DEF_FILE_IO_SIZE;
-	nfs_data.wsize    = NFS_DEF_FILE_IO_SIZE;
-	nfs_data.acregmin = 3;
-	nfs_data.acregmax = 60;
-	nfs_data.acdirmin = 30;
-	nfs_data.acdirmax = 60;
-	strcpy(buf, NFS_ROOT);
-
-	/* Process options received from the remote server */
-	root_nfs_parse(root_server_path, buf);
-
-	/* Override them by options set on kernel command-line */
-	root_nfs_parse(name, buf);
-
-	cp = system_utsname.nodename;
-	if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
-		printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
-		return -1;
-	}
-	sprintf(nfs_path, buf, cp);
-
-	return 1;
-}
-
-
-/*
- *  Get NFS server address.
- */
-static int __init root_nfs_addr(void)
-{
-	if ((servaddr = root_server_addr) == INADDR_NONE) {
-		printk(KERN_ERR "Root-NFS: No NFS server available, giving up.\n");
-		return -1;
-	}
-
-	snprintf(nfs_data.hostname, sizeof(nfs_data.hostname),
-		 "%u.%u.%u.%u", NIPQUAD(servaddr));
-	return 0;
-}
-
-/*
- *  Tell the user what's going on.
- */
-#ifdef NFSROOT_DEBUG
-static void __init root_nfs_print(void)
-{
-	printk(KERN_NOTICE "Root-NFS: Mounting %s on server %s as root\n",
-		nfs_path, nfs_data.hostname);
-	printk(KERN_NOTICE "Root-NFS:     rsize = %d, wsize = %d, timeo = %d, retrans = %d\n",
-		nfs_data.rsize, nfs_data.wsize, nfs_data.timeo, nfs_data.retrans);
-	printk(KERN_NOTICE "Root-NFS:     acreg (min,max) = (%d,%d), acdir (min,max) = (%d,%d)\n",
-		nfs_data.acregmin, nfs_data.acregmax,
-		nfs_data.acdirmin, nfs_data.acdirmax);
-	printk(KERN_NOTICE "Root-NFS:     nfsd port = %d, mountd port = %d, flags = %08x\n",
-		nfs_port, mount_port, nfs_data.flags);
-}
-#endif
-
-
-static int __init root_nfs_init(void)
-{
-#ifdef NFSROOT_DEBUG
-	nfs_debug |= NFSDBG_ROOT;
-#endif
-
-	/*
-	 * Decode the root directory path name and NFS options from
-	 * the kernel command line. This has to go here in order to
-	 * be able to use the client IP address for the remote root
-	 * directory (necessary for pure RARP booting).
-	 */
-	if (root_nfs_name(nfs_root_name) < 0 ||
-	    root_nfs_addr() < 0)
-		return -1;
-
-#ifdef NFSROOT_DEBUG
-	root_nfs_print();
-#endif
-
-	return 0;
-}
-
-
-/*
- *  Parse NFS server and directory information passed on the kernel
- *  command line.
- */
-static int __init nfs_root_setup(char *line)
-{
-	ROOT_DEV = Root_NFS;
-	if (line[0] == '/' || line[0] == ',' || (line[0] >= '0' && line[0] <= '9')) {
-		strlcpy(nfs_root_name, line, sizeof(nfs_root_name));
-	} else {
-		int n = strlen(line) + sizeof(NFS_ROOT) - 1;
-		if (n >= sizeof(nfs_root_name))
-			line[sizeof(nfs_root_name) - sizeof(NFS_ROOT) - 2] = '\0';
-		sprintf(nfs_root_name, NFS_ROOT, line);
-	}
-	root_server_addr = root_nfs_parse_addr(nfs_root_name);
-	return 1;
-}
-
-__setup("nfsroot=", nfs_root_setup);
-
-/***************************************************************************
-
-	       Routines to actually mount the root directory
-
- ***************************************************************************/
-
-/*
- *  Construct sockaddr_in from address and port number.
- */
-static inline void
-set_sockaddr(struct sockaddr_in *sin, __u32 addr, __u16 port)
-{
-	sin->sin_family = AF_INET;
-	sin->sin_addr.s_addr = addr;
-	sin->sin_port = port;
-}
-
-/*
- *  Query server portmapper for the port of a daemon program.
- */
-static int __init root_nfs_getport(int program, int version, int proto)
-{
-	struct sockaddr_in sin;
-
-	printk(KERN_NOTICE "Looking up port of RPC %d/%d on %u.%u.%u.%u\n",
-		program, version, NIPQUAD(servaddr));
-	set_sockaddr(&sin, servaddr, 0);
-	return rpc_getport_external(&sin, program, version, proto);
-}
-
-
-/*
- *  Use portmapper to find mountd and nfsd port numbers if not overriden
- *  by the user. Use defaults if portmapper is not available.
- *  XXX: Is there any nfs server with no portmapper?
- */
-static int __init root_nfs_ports(void)
-{
-	int port;
-	int nfsd_ver, mountd_ver;
-	int nfsd_port, mountd_port;
-	int proto;
-
-	if (nfs_data.flags & NFS_MOUNT_VER3) {
-		nfsd_ver = NFS3_VERSION;
-		mountd_ver = NFS_MNT3_VERSION;
-		nfsd_port = NFS_PORT;
-		mountd_port = NFS_MNT_PORT;
-	} else {
-		nfsd_ver = NFS2_VERSION;
-		mountd_ver = NFS_MNT_VERSION;
-		nfsd_port = NFS_PORT;
-		mountd_port = NFS_MNT_PORT;
-	}
-
-	proto = (nfs_data.flags & NFS_MOUNT_TCP) ? IPPROTO_TCP : IPPROTO_UDP;
-
-	if (nfs_port < 0) {
-		if ((port = root_nfs_getport(NFS_PROGRAM, nfsd_ver, proto)) < 0) {
-			printk(KERN_ERR "Root-NFS: Unable to get nfsd port "
-					"number from server, using default\n");
-			port = nfsd_port;
-		}
-		nfs_port = port;
-		dprintk("Root-NFS: Portmapper on server returned %d "
-			"as nfsd port\n", port);
-	}
-	nfs_port = htons(nfs_port);
-
-	if ((port = root_nfs_getport(NFS_MNT_PROGRAM, mountd_ver, proto)) < 0) {
-		printk(KERN_ERR "Root-NFS: Unable to get mountd port "
-				"number from server, using default\n");
-		port = mountd_port;
-	}
-	mount_port = htons(port);
-	dprintk("Root-NFS: mountd port is %d\n", port);
-
-	return 0;
-}
-
-
-/*
- *  Get a file handle from the server for the directory which is to be
- *  mounted.
- */
-static int __init root_nfs_get_handle(void)
-{
-	struct nfs_fh fh;
-	struct sockaddr_in sin;
-	int status;
-	int protocol = (nfs_data.flags & NFS_MOUNT_TCP) ?
-					IPPROTO_TCP : IPPROTO_UDP;
-	int version = (nfs_data.flags & NFS_MOUNT_VER3) ?
-					NFS_MNT3_VERSION : NFS_MNT_VERSION;
-
-	set_sockaddr(&sin, servaddr, mount_port);
-	status = nfsroot_mount(&sin, nfs_path, &fh, version, protocol);
-	if (status < 0)
-		printk(KERN_ERR "Root-NFS: Server returned error %d "
-				"while mounting %s\n", status, nfs_path);
-	else {
-		nfs_data.root.size = fh.size;
-		memcpy(nfs_data.root.data, fh.data, fh.size);
-	}
-
-	return status;
-}
-
-/*
- *  Get the NFS port numbers and file handle, and return the prepared 'data'
- *  argument for mount() if everything went OK. Return NULL otherwise.
- */
-void * __init nfs_root_data(void)
-{
-	if (root_nfs_init() < 0
-	 || root_nfs_ports() < 0
-	 || root_nfs_get_handle() < 0)
-		return NULL;
-	set_sockaddr((struct sockaddr_in *) &nfs_data.addr, servaddr, nfs_port);
-	return (void*)&nfs_data;
-}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux