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author | kaf24@labyrinth.cl.cam.ac.uk <kaf24@labyrinth.cl.cam.ac.uk> | 2003-02-09 20:48:15 +0000 |
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committer | kaf24@labyrinth.cl.cam.ac.uk <kaf24@labyrinth.cl.cam.ac.uk> | 2003-02-09 20:48:15 +0000 |
commit | 2cf7b1a31399b8c46e321fa361ed27120e158f0f (patch) | |
tree | afd828465222c6df76504c08ae3f24716335556b | |
parent | 690729a1cd4595fad2414f9639431def331231a7 (diff) | |
download | xen-2cf7b1a31399b8c46e321fa361ed27120e158f0f.tar.gz xen-2cf7b1a31399b8c46e321fa361ed27120e158f0f.tar.bz2 xen-2cf7b1a31399b8c46e321fa361ed27120e158f0f.zip |
bitkeeper revision 1.22.2.12 (3e46be8fKXI1VIYDI9AyPiLXAYvdQQ)
.del-nfsroot.c~c37fd8e4992ee67d:
Delete: xenolinux-2.4.16-sparse/fs/nfs/nfsroot.c
-rw-r--r-- | .rootkeys | 1 | ||||
-rw-r--r-- | xenolinux-2.4.16-sparse/fs/nfs/nfsroot.c | 466 |
2 files changed, 0 insertions, 467 deletions
@@ -317,7 +317,6 @@ 3ddb79bcJfHdwrPsjqgI33_OsGdVCg xenolinux-2.4.16-sparse/drivers/block/rd.c 3ddb79bcpVu-IbnqwQqpRqsEbLpsuw xenolinux-2.4.16-sparse/drivers/char/tty_io.c 3e15d5273gfR2fbcYe05kqBSAvCX_w xenolinux-2.4.16-sparse/fs/exec.c -3ddb79bba_zKpuurHVeWfgDkyPoq8A xenolinux-2.4.16-sparse/fs/nfs/nfsroot.c 3ddb79b8VFtfWSCrXKPN2K21zd_vtw xenolinux-2.4.16-sparse/include/asm-xeno/a.out.h 3ddb79b8Zzi13p3OAPV25QgiC3THAQ xenolinux-2.4.16-sparse/include/asm-xeno/apic.h 3ddb79baZDlsdV_m6C5CXnWMl15p1g xenolinux-2.4.16-sparse/include/asm-xeno/apicdef.h diff --git a/xenolinux-2.4.16-sparse/fs/nfs/nfsroot.c b/xenolinux-2.4.16-sparse/fs/nfs/nfsroot.c deleted file mode 100644 index a2373467d5..0000000000 --- a/xenolinux-2.4.16-sparse/fs/nfs/nfsroot.c +++ /dev/null @@ -1,466 +0,0 @@ -/* - * $Id: nfsroot.c,v 1.45 1998/03/07 10:44:46 mj Exp $ - * - * Copyright (C) 1995, 1996 Gero Kuhlmann <gero@gkminix.han.de> - * - * 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. - */ - -#include <linux/config.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/sched.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/inet.h> -#include <linux/major.h> -#include <linux/utsname.h> -#include <net/ipconfig.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 - - ***************************************************************************/ - -/* - * The following integer options are recognized - */ -static struct nfs_int_opts { - char *name; - int *val; -} root_int_opts[] __initdata = { - { "port", &nfs_port }, - { "rsize", &nfs_data.rsize }, - { "wsize", &nfs_data.wsize }, - { "timeo", &nfs_data.timeo }, - { "retrans", &nfs_data.retrans }, - { "acregmin", &nfs_data.acregmin }, - { "acregmax", &nfs_data.acregmax }, - { "acdirmin", &nfs_data.acdirmin }, - { "acdirmax", &nfs_data.acdirmax }, - { NULL, NULL } -}; - - -/* - * And now the flag options - */ -static struct nfs_bool_opts { - char *name; - int and_mask; - int or_mask; -} root_bool_opts[] __initdata = { - { "soft", ~NFS_MOUNT_SOFT, NFS_MOUNT_SOFT }, - { "hard", ~NFS_MOUNT_SOFT, 0 }, - { "intr", ~NFS_MOUNT_INTR, NFS_MOUNT_INTR }, - { "nointr", ~NFS_MOUNT_INTR, 0 }, - { "posix", ~NFS_MOUNT_POSIX, NFS_MOUNT_POSIX }, - { "noposix", ~NFS_MOUNT_POSIX, 0 }, - { "cto", ~NFS_MOUNT_NOCTO, 0 }, - { "nocto", ~NFS_MOUNT_NOCTO, NFS_MOUNT_NOCTO }, - { "ac", ~NFS_MOUNT_NOAC, 0 }, - { "noac", ~NFS_MOUNT_NOAC, NFS_MOUNT_NOAC }, - { "lock", ~NFS_MOUNT_NONLM, 0 }, - { "nolock", ~NFS_MOUNT_NONLM, NFS_MOUNT_NONLM }, -#ifdef CONFIG_NFS_V3 - { "v2", ~NFS_MOUNT_VER3, 0 }, - { "v3", ~NFS_MOUNT_VER3, NFS_MOUNT_VER3 }, -#endif - { "udp", ~NFS_MOUNT_TCP, 0 }, - { "tcp", ~NFS_MOUNT_TCP, NFS_MOUNT_TCP }, - { "broken_suid",~NFS_MOUNT_BROKEN_SUID, NFS_MOUNT_BROKEN_SUID }, - { NULL, 0, 0 } -}; - - -/* - * Extract IP address from the parameter string if needed. Note that we - * need to have root_server_addr set _before_ IPConfig gets called as it - * can override it. - */ -static void __init root_nfs_parse_addr(char *name) -{ - int octets = 0; - char *cp, *cq; - - cp = cq = name; - while (octets < 4) { - while (*cp >= '0' && *cp <= '9') - cp++; - if (cp == cq || cp - cq > 3) - break; - if (*cp == '.' || octets == 3) - octets++; - if (octets < 4) - cp++; - cq = cp; - } - if (octets == 4 && (*cp == ':' || *cp == '\0')) { - if (*cp == ':') - *cp++ = '\0'; - root_server_addr = in_aton(name); - strcpy(name, cp); - } -} - - -/* - * Parse option string. - */ -static void __init root_nfs_parse(char *name, char *buf) -{ - char *options, *val, *cp; - - if ((options = strchr(name, ','))) { - *options++ = 0; - cp = strtok(options, ","); - while (cp) { - if ((val = strchr(cp, '='))) { - struct nfs_int_opts *opts = root_int_opts; - *val++ = '\0'; - while (opts->name && strcmp(opts->name, cp)) - opts++; - if (opts->name) - *(opts->val) = (int) simple_strtoul(val, NULL, 10); - } else { - struct nfs_bool_opts *opts = root_bool_opts; - while (opts->name && strcmp(opts->name, cp)) - opts++; - if (opts->name) { - nfs_data.flags &= opts->and_mask; - nfs_data.flags |= opts->or_mask; - } - } - cp = strtok(NULL, ","); - } - } - if (name[0] && strcmp(name, "default")) { - strncpy(buf, name, NFS_MAXPATHLEN-1); - buf[NFS_MAXPATHLEN-1] = 0; - } -} - - -/* - * Prepare the NFS data structure and parse all options. - */ -static int __init root_nfs_name(char *name) -{ - char buf[NFS_MAXPATHLEN]; - 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_BUFFER_SIZE; - nfs_data.wsize = NFS_DEF_FILE_IO_BUFFER_SIZE; - nfs_data.bsize = 0; - nfs_data.timeo = 7; - nfs_data.retrans = 3; - 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; - } - - strncpy(nfs_data.hostname, in_ntoa(servaddr), sizeof(nfs_data.hostname)-1); - 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 - - -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. - */ -int __init nfs_root_setup(char *line) -{ - ROOT_DEV = MKDEV(UNNAMED_MAJOR, 255); - if (line[0] == '/' || line[0] == ',' || (line[0] >= '0' && line[0] <= '9')) { - strncpy(nfs_root_name, line, sizeof(nfs_root_name)); - nfs_root_name[sizeof(nfs_root_name)-1] = '\0'; - } else { - int n = strlen(line) + strlen(NFS_ROOT); - if (n >= sizeof(nfs_root_name)) - line[sizeof(nfs_root_name) - strlen(NFS_ROOT) - 1] = '\0'; - sprintf(nfs_root_name, NFS_ROOT, line); - } - 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 %s\n", - program, version, in_ntoa(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 = htons(port); - dprintk("Root-NFS: Portmapper on server returned %d " - "as nfsd port\n", 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 sockaddr_in sin; - int status; - - set_sockaddr(&sin, servaddr, mount_port); - if (nfs_data.flags & NFS_MOUNT_VER3) - status = nfs3_mount(&sin, nfs_path, &nfs_data.root); - else - status = nfs_mount(&sin, nfs_path, &nfs_data.root); - if (status < 0) - printk(KERN_ERR "Root-NFS: Server returned error %d " - "while mounting %s\n", status, nfs_path); - - return status; -} - -/* - * Get the NFS port numbers and file handle, and return the prepared 'data' - * argument for ->read_super() 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; -} |