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-rw-r--r--fs/autofs/inode.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
deleted file mode 100644
index 65e5ed42190..00000000000
--- a/fs/autofs/inode.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/* -*- linux-c -*- --------------------------------------------------------- *
- *
- * linux/fs/autofs/inode.c
- *
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/file.h>
-#include <linux/parser.h>
-#include <linux/bitops.h>
-#include "autofs_i.h"
-#include <linux/module.h>
-
-static void autofs_put_super(struct super_block *sb)
-{
- struct autofs_sb_info *sbi = autofs_sbi(sb);
- unsigned int n;
-
- if ( !sbi->catatonic )
- autofs_catatonic_mode(sbi); /* Free wait queues, close pipe */
-
- autofs_hash_nuke(sbi);
- for ( n = 0 ; n < AUTOFS_MAX_SYMLINKS ; n++ ) {
- if ( test_bit(n, sbi->symlink_bitmap) )
- kfree(sbi->symlink[n].data);
- }
-
- kfree(sb->s_fs_info);
-
- DPRINTK(("autofs: shutting down\n"));
-}
-
-static void autofs_read_inode(struct inode *inode);
-
-static struct super_operations autofs_sops = {
- .read_inode = autofs_read_inode,
- .put_super = autofs_put_super,
- .statfs = simple_statfs,
-};
-
-enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto};
-
-static match_table_t autofs_tokens = {
- {Opt_fd, "fd=%u"},
- {Opt_uid, "uid=%u"},
- {Opt_gid, "gid=%u"},
- {Opt_pgrp, "pgrp=%u"},
- {Opt_minproto, "minproto=%u"},
- {Opt_maxproto, "maxproto=%u"},
- {Opt_err, NULL}
-};
-
-static int parse_options(char *options, int *pipefd, uid_t *uid, gid_t *gid, pid_t *pgrp, int *minproto, int *maxproto)
-{
- char *p;
- substring_t args[MAX_OPT_ARGS];
- int option;
-
- *uid = current->uid;
- *gid = current->gid;
- *pgrp = process_group(current);
-
- *minproto = *maxproto = AUTOFS_PROTO_VERSION;
-
- *pipefd = -1;
-
- if (!options)
- return 1;
-
- while ((p = strsep(&options, ",")) != NULL) {
- int token;
- if (!*p)
- continue;
-
- token = match_token(p, autofs_tokens, args);
- switch (token) {
- case Opt_fd:
- if (match_int(&args[0], &option))
- return 1;
- *pipefd = option;
- break;
- case Opt_uid:
- if (match_int(&args[0], &option))
- return 1;
- *uid = option;
- break;
- case Opt_gid:
- if (match_int(&args[0], &option))
- return 1;
- *gid = option;
- break;
- case Opt_pgrp:
- if (match_int(&args[0], &option))
- return 1;
- *pgrp = option;
- break;
- case Opt_minproto:
- if (match_int(&args[0], &option))
- return 1;
- *minproto = option;
- break;
- case Opt_maxproto:
- if (match_int(&args[0], &option))
- return 1;
- *maxproto = option;
- break;
- default:
- return 1;
- }
- }
- return (*pipefd < 0);
-}
-
-int autofs_fill_super(struct super_block *s, void *data, int silent)
-{
- struct inode * root_inode;
- struct dentry * root;
- struct file * pipe;
- int pipefd;
- struct autofs_sb_info *sbi;
- int minproto, maxproto;
-
- sbi = kmalloc(sizeof(*sbi), GFP_KERNEL);
- if ( !sbi )
- goto fail_unlock;
- memset(sbi, 0, sizeof(*sbi));
- DPRINTK(("autofs: starting up, sbi = %p\n",sbi));
-
- s->s_fs_info = sbi;
- sbi->magic = AUTOFS_SBI_MAGIC;
- sbi->catatonic = 0;
- sbi->exp_timeout = 0;
- sbi->oz_pgrp = process_group(current);
- autofs_initialize_hash(&sbi->dirhash);
- sbi->queues = NULL;
- memset(sbi->symlink_bitmap, 0, sizeof(long)*AUTOFS_SYMLINK_BITMAP_LEN);
- sbi->next_dir_ino = AUTOFS_FIRST_DIR_INO;
- s->s_blocksize = 1024;
- s->s_blocksize_bits = 10;
- s->s_magic = AUTOFS_SUPER_MAGIC;
- s->s_op = &autofs_sops;
- s->s_time_gran = 1;
- sbi->sb = s;
-
- root_inode = iget(s, AUTOFS_ROOT_INO);
- root = d_alloc_root(root_inode);
- pipe = NULL;
-
- if (!root)
- goto fail_iput;
-
- /* Can this call block? - WTF cares? s is locked. */
- if ( parse_options(data,&pipefd,&root_inode->i_uid,&root_inode->i_gid,&sbi->oz_pgrp,&minproto,&maxproto) ) {
- printk("autofs: called with bogus options\n");
- goto fail_dput;
- }
-
- /* Couldn't this be tested earlier? */
- if ( minproto > AUTOFS_PROTO_VERSION ||
- maxproto < AUTOFS_PROTO_VERSION ) {
- printk("autofs: kernel does not match daemon version\n");
- goto fail_dput;
- }
-
- DPRINTK(("autofs: pipe fd = %d, pgrp = %u\n", pipefd, sbi->oz_pgrp));
- pipe = fget(pipefd);
-
- if ( !pipe ) {
- printk("autofs: could not open pipe file descriptor\n");
- goto fail_dput;
- }
- if ( !pipe->f_op || !pipe->f_op->write )
- goto fail_fput;
- sbi->pipe = pipe;
-
- /*
- * Success! Install the root dentry now to indicate completion.
- */
- s->s_root = root;
- return 0;
-
-fail_fput:
- printk("autofs: pipe file descriptor does not contain proper ops\n");
- fput(pipe);
-fail_dput:
- dput(root);
- goto fail_free;
-fail_iput:
- printk("autofs: get root dentry failed\n");
- iput(root_inode);
-fail_free:
- kfree(sbi);
-fail_unlock:
- return -EINVAL;
-}
-
-static void autofs_read_inode(struct inode *inode)
-{
- ino_t ino = inode->i_ino;
- unsigned int n;
- struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
-
- /* Initialize to the default case (stub directory) */
-
- inode->i_op = &simple_dir_inode_operations;
- inode->i_fop = &simple_dir_operations;
- inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
- inode->i_nlink = 2;
- inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
- inode->i_blocks = 0;
- inode->i_blksize = 1024;
-
- if ( ino == AUTOFS_ROOT_INO ) {
- inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
- inode->i_op = &autofs_root_inode_operations;
- inode->i_fop = &autofs_root_operations;
- inode->i_uid = inode->i_gid = 0; /* Changed in read_super */
- return;
- }
-
- inode->i_uid = inode->i_sb->s_root->d_inode->i_uid;
- inode->i_gid = inode->i_sb->s_root->d_inode->i_gid;
-
- if ( ino >= AUTOFS_FIRST_SYMLINK && ino < AUTOFS_FIRST_DIR_INO ) {
- /* Symlink inode - should be in symlink list */
- struct autofs_symlink *sl;
-
- n = ino - AUTOFS_FIRST_SYMLINK;
- if ( n >= AUTOFS_MAX_SYMLINKS || !test_bit(n,sbi->symlink_bitmap)) {
- printk("autofs: Looking for bad symlink inode %u\n", (unsigned int) ino);
- return;
- }
-
- inode->i_op = &autofs_symlink_inode_operations;
- sl = &sbi->symlink[n];
- inode->u.generic_ip = sl;
- inode->i_mode = S_IFLNK | S_IRWXUGO;
- inode->i_mtime.tv_sec = inode->i_ctime.tv_sec = sl->mtime;
- inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0;
- inode->i_size = sl->len;
- inode->i_nlink = 1;
- }
-}
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