Release 4.11 fs/ncpfs/inode.c

/*
 *  inode.c
 *
 *  Copyright (C) 1995, 1996 by Volker Lendecke
 *  Modified for big endian by J.F. Chadima and David S. Miller
 *  Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
 *  Modified 1998 Wolfram Pienkoss for NLS
 *  Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info
 *
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>

#include <linux/uaccess.h>
#include <asm/byteorder.h>

#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/stat.h>
#include <linux/errno.h>
#include <linux/file.h>
#include <linux/fcntl.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/init.h>
#include <linux/vfs.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/sched/signal.h>
#include <linux/namei.h>

#include <net/sock.h>

#include "ncp_fs.h"
#include "getopt.h"


#define NCP_DEFAULT_FILE_MODE 0600

#define NCP_DEFAULT_DIR_MODE 0700

#define NCP_DEFAULT_TIME_OUT 10

#define NCP_DEFAULT_RETRY_COUNT 20

static void ncp_evict_inode(struct inode *);
static void ncp_put_super(struct super_block *);
static int  ncp_statfs(struct dentry *, struct kstatfs *);
static int  ncp_show_options(struct seq_file *, struct dentry *);


static struct kmem_cache * ncp_inode_cachep;



static struct inode *ncp_alloc_inode(struct super_block *sb)
{
	struct ncp_inode_info *ei;
	ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL);
	if (!ei)
		return NULL;
	return &ei->vfs_inode;
}

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Linus Torvalds
45
97.83%
1
50.00%
Christoph Lameter
1
2.17%
1
50.00%
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46
100.00%
2
100.00%



static void ncp_i_callback(struct rcu_head *head)
{
	struct inode *inode = container_of(head, struct inode, i_rcu);
	kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
}

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Linus Torvalds
18
50.00%
1
50.00%
Nicholas Piggin
18
50.00%
1
50.00%
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36
100.00%
2
100.00%



static void ncp_destroy_inode(struct inode *inode)
{
	call_rcu(&inode->i_rcu, ncp_i_callback);
}

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Nicholas Piggin
21
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1
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21
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1
100.00%



static void init_once(void *foo)
{
	struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;

	mutex_init(&ei->open_mutex);
	inode_init_once(&ei->vfs_inode);
}

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Linus Torvalds
33
86.84%
1
33.33%
Christoph Lameter
3
7.89%
1
33.33%
Ingo Molnar
2
5.26%
1
33.33%
Total
38
100.00%
3
100.00%



static int init_inodecache(void)
{
	ncp_inode_cachep = kmem_cache_create("ncp_inode_cache",
					     sizeof(struct ncp_inode_info),
					     0, (SLAB_RECLAIM_ACCOUNT|
						SLAB_MEM_SPREAD|SLAB_ACCOUNT),
					     init_once);
	if (ncp_inode_cachep == NULL)
		return -ENOMEM;
	return 0;
}

Contributors
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CommitProp
Linus Torvalds
39
84.78%
1
20.00%
Paul Jackson
4
8.70%
2
40.00%
Vladimir Davydov
2
4.35%
1
20.00%
Andrew Morton
1
2.17%
1
20.00%
Total
46
100.00%
5
100.00%



static void destroy_inodecache(void)
{
	/*
         * Make sure all delayed rcu free inodes are flushed before we
         * destroy cache.
         */
	rcu_barrier();
	kmem_cache_destroy(ncp_inode_cachep);
}

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Linus Torvalds
13
76.47%
1
50.00%
Kirill A. Shutemov
4
23.53%
1
50.00%
Total
17
100.00%
2
100.00%



static int ncp_remount(struct super_block *sb, int *flags, char* data)
{
	sync_filesystem(sb);
	*flags |= MS_NODIRATIME;
	return 0;
}

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Al Viro
27
84.38%
1
50.00%
Theodore Y. Ts'o
5
15.62%
1
50.00%
Total
32
100.00%
2
100.00%


static const struct super_operations ncp_sops =
{
	.alloc_inode	= ncp_alloc_inode,
	.destroy_inode	= ncp_destroy_inode,
	.drop_inode	= generic_delete_inode,
	.evict_inode	= ncp_evict_inode,
	.put_super	= ncp_put_super,
	.statfs		= ncp_statfs,
	.remount_fs	= ncp_remount,
	.show_options	= ncp_show_options,
};

/*
 * Fill in the ncpfs-specific information in the inode.
 */


static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
	NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
	NCP_FINFO(inode)->volNumber = nwinfo->volume;
}

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Linus Torvalds (pre-git)
49
92.45%
3
60.00%
Petr Vandrovec
4
7.55%
2
40.00%
Total
53
100.00%
5
100.00%



void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	ncp_update_dirent(inode, nwinfo);
	NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
	NCP_FINFO(inode)->access = nwinfo->access;
	memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
			sizeof(nwinfo->file_handle));
	ncp_dbg(1, "updated %s, volnum=%d, dirent=%u\n",
		nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
		NCP_FINFO(inode)->dirEntNum);
}

Contributors
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Linus Torvalds (pre-git)
69
73.40%
4
66.67%
Petr Vandrovec
21
22.34%
1
16.67%
Joe Perches
4
4.26%
1
16.67%
Total
94
100.00%
6
100.00%



static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi)
{
	/* NFS namespace mode overrides others if it's set. */
	ncp_dbg(1, "(%s) nfs.mode=0%o\n", nwi->entryName, nwi->nfs.mode);
	if (nwi->nfs.mode) {
		/* XXX Security? */
		inode->i_mode = nwi->nfs.mode;
	}

	inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;

	inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate);
	inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate);
	inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate);
	inode->i_atime.tv_nsec = 0;
	inode->i_mtime.tv_nsec = 0;
	inode->i_ctime.tv_nsec = 0;
}

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Petr Vandrovec
110
75.86%
3
50.00%
Andi Kleen
30
20.69%
1
16.67%
Joe Perches
4
2.76%
1
16.67%
Linus Torvalds (pre-git)
1
0.69%
1
16.67%
Total
145
100.00%
6
100.00%



static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	struct nw_info_struct *nwi = &nwinfo->i;
	struct ncp_server *server = NCP_SERVER(inode);

	if (nwi->attributes & aDIR) {
		inode->i_mode = server->m.dir_mode;
		/* for directories dataStreamSize seems to be some
                   Object ID ??? */
		i_size_write(inode, NCP_BLOCK_SIZE);
	} else {
		u32 size;

		inode->i_mode = server->m.file_mode;
		size = le32_to_cpu(nwi->dataStreamSize);
		i_size_write(inode, size);
#ifdef CONFIG_NCPFS_EXTRAS
		if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) 
		 && (nwi->attributes & aSHARED)) {
			switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
				case aHIDDEN:
					if (server->m.flags & NCP_MOUNT_SYMLINKS) {
						if (/* (size >= NCP_MIN_SYMLINK_SIZE)
                                                 && */ (size <= NCP_MAX_SYMLINK_SIZE)) {
							inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
							NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK;
							break;
						}
					}
					/* FALLTHROUGH */
				case 0:
					if (server->m.flags & NCP_MOUNT_EXTRAS)
						inode->i_mode |= S_IRUGO;
					break;
				case aSYSTEM:
					if (server->m.flags & NCP_MOUNT_EXTRAS)
						inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO;
					break;
				/* case aSYSTEM|aHIDDEN: */
				default:
					/* reserved combination */
					break;
			}
		}
#endif
	}
	if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO;
}

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Linus Torvalds (pre-git)
227
87.31%
3
50.00%
Petr Vandrovec
33
12.69%
3
50.00%
Total
260
100.00%
6
100.00%



void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
{
	NCP_FINFO(inode)->flags = 0;
	if (!atomic_read(&NCP_FINFO(inode)->opened)) {
		NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
		ncp_update_attrs(inode, nwinfo);
	}

	ncp_update_dates(inode, &nwinfo->i);
	ncp_update_dirent(inode, nwinfo);
}

Contributors
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Petr Vandrovec
53
68.83%
2
50.00%
Linus Torvalds (pre-git)
24
31.17%
2
50.00%
Total
77
100.00%
4
100.00%

/*
 * Fill in the inode based on the ncp_entry_info structure.  Used only for brand new inodes.
 */


static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
{
	struct ncp_server *server = NCP_SERVER(inode);

	NCP_FINFO(inode)->flags = 0;
	
	ncp_update_attrs(inode, nwinfo);

	ncp_dbg(2, "inode->i_mode = %u\n", inode->i_mode);

	set_nlink(inode, 1);
	inode->i_uid = server->m.uid;
	inode->i_gid = server->m.gid;

	ncp_update_dates(inode, &nwinfo->i);
	ncp_update_inode(inode, nwinfo);
}

Contributors
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Tokens
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Commits
CommitProp
Linus Torvalds (pre-git)
72
74.23%
6
60.00%
Petr Vandrovec
17
17.53%
2
20.00%
Joe Perches
4
4.12%
1
10.00%
Miklos Szeredi
4
4.12%
1
10.00%
Total
97
100.00%
10
100.00%

#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)

static const struct inode_operations ncp_symlink_inode_operations = {
	.get_link	= page_get_link,
	.setattr	= ncp_notify_change,
};
#endif

/*
 * Get a new inode.
 */

struct inode * 

ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
{
	struct inode *inode;

	if (info == NULL) {
		pr_err("%s: info is NULL\n", __func__);
		return NULL;
	}

	inode = new_inode(sb);
	if (inode) {
		atomic_set(&NCP_FINFO(inode)->opened, info->opened);

		inode->i_ino = info->ino;
		ncp_set_attr(inode, info);
		if (S_ISREG(inode->i_mode)) {
			inode->i_op = &ncp_file_inode_operations;
			inode->i_fop = &ncp_file_operations;
		} else if (S_ISDIR(inode->i_mode)) {
			inode->i_op = &ncp_dir_inode_operations;
			inode->i_fop = &ncp_dir_operations;
#ifdef CONFIG_NCPFS_NFS_NS
		} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
			init_special_inode(inode, inode->i_mode,
				new_decode_dev(info->i.nfs.rdev));
#endif
#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
		} else if (S_ISLNK(inode->i_mode)) {
			inode->i_op = &ncp_symlink_inode_operations;
			inode_nohighmem(inode);
			inode->i_data.a_ops = &ncp_symlink_aops;
#endif
		} else {
			make_bad_inode(inode);
		}
		insert_inode_hash(inode);
	} else
		pr_err("%s: iget failed!\n", __func__);
	return inode;
}

Contributors
Person
Tokens
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CommitProp
Linus Torvalds (pre-git)
175
66.79%
9
64.29%
Petr Vandrovec
71
27.10%
1
7.14%
Joe Perches
8
3.05%
1
7.14%
Al Viro
8
3.05%
3
21.43%
Total
262
100.00%
14
100.00%


static void

ncp_evict_inode(struct inode *inode)
{
	truncate_inode_pages_final(&inode->i_data);
	clear_inode(inode);

	if (S_ISDIR(inode->i_mode)) {
		ncp_dbg(2, "put directory %ld\n", inode->i_ino);
	}

	if (ncp_make_closed(inode) != 0) {
		/* We can't do anything but complain. */
		pr_err("%s: could not close\n", __func__);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
43
66.15%
3
33.33%
Joe Perches
8
12.31%
2
22.22%
Mark Fasheh
7
10.77%
1
11.11%
Al Viro
5
7.69%
1
11.11%
Jan Kara
1
1.54%
1
11.11%
Johannes Weiner
1
1.54%
1
11.11%
Total
65
100.00%
9
100.00%



static void ncp_stop_tasks(struct ncp_server *server) {
	struct sock* sk = server->ncp_sock->sk;

	lock_sock(sk);
	sk->sk_error_report = server->error_report;
	sk->sk_data_ready   = server->data_ready;
	sk->sk_write_space  = server->write_space;
	release_sock(sk);
	del_timer_sync(&server->timeout_tm);

	flush_work(&server->rcv.tq);
	if (sk->sk_socket->type == SOCK_STREAM)
		flush_work(&server->tx.tq);
	else
		flush_work(&server->timeout_tq);
}

Contributors
Person
Tokens
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Commits
CommitProp
Petr Vandrovec
62
60.19%
2
40.00%
Tejun Heo
38
36.89%
2
40.00%
Arnaldo Carvalho de Melo
3
2.91%
1
20.00%
Total
103
100.00%
5
100.00%



static int  ncp_show_options(struct seq_file *seq, struct dentry *root)
{
	struct ncp_server *server = NCP_SBP(root->d_sb);
	unsigned int tmp;

	if (!uid_eq(server->m.uid, GLOBAL_ROOT_UID))
		seq_printf(seq, ",uid=%u",
			   from_kuid_munged(&init_user_ns, server->m.uid));
	if (!gid_eq(server->m.gid, GLOBAL_ROOT_GID))
		seq_printf(seq, ",gid=%u",
			   from_kgid_munged(&init_user_ns, server->m.gid));
	if (!uid_eq(server->m.mounted_uid, GLOBAL_ROOT_UID))
		seq_printf(seq, ",owner=%u",
			   from_kuid_munged(&init_user_ns, server->m.mounted_uid));
	tmp = server->m.file_mode & S_IALLUGO;
	if (tmp != NCP_DEFAULT_FILE_MODE)
		seq_printf(seq, ",mode=0%o", tmp);
	tmp = server->m.dir_mode & S_IALLUGO;
	if (tmp != NCP_DEFAULT_DIR_MODE)
		seq_printf(seq, ",dirmode=0%o", tmp);
	if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) {
		tmp = server->m.time_out * 100 / HZ;
		seq_printf(seq, ",timeout=%u", tmp);
	}
	if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT)
		seq_printf(seq, ",retry=%u", server->m.retry_count);
	if (server->m.flags != 0)
		seq_printf(seq, ",flags=%lu", server->m.flags);
	if (server->m.wdog_pid != NULL)
		seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid));

	return 0;
}

Contributors
Person
Tokens
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CommitProp
Miklos Szeredi
253
86.35%
1
33.33%
Eric W. Biedermann
36
12.29%
1
33.33%
Al Viro
4
1.37%
1
33.33%
Total
293
100.00%
3
100.00%


static const struct ncp_option ncp_opts[] = {
	{ "uid",	OPT_INT,	'u' },
	{ "gid",	OPT_INT,	'g' },
	{ "owner",	OPT_INT,	'o' },
	{ "mode",	OPT_INT,	'm' },
	{ "dirmode",	OPT_INT,	'd' },
	{ "timeout",	OPT_INT,	't' },
	{ "retry",	OPT_INT,	'r' },
	{ "flags",	OPT_INT,	'f' },
	{ "wdogpid",	OPT_INT,	'w' },
	{ "ncpfd",	OPT_INT,	'n' },
	{ "infofd",	OPT_INT,	'i' },	/* v5 */
	{ "version",	OPT_INT,	'v' },
	{ NULL,		0,		0 } };



static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) {
	int optval;
	char *optarg;
	unsigned long optint;
	int version = 0;
	int ret;

	data->flags = 0;
	data->int_flags = 0;
	data->mounted_uid = GLOBAL_ROOT_UID;
	data->wdog_pid = NULL;
	data->ncp_fd = ~0;
	data->time_out = NCP_DEFAULT_TIME_OUT;
	data->retry_count = NCP_DEFAULT_RETRY_COUNT;
	data->uid = GLOBAL_ROOT_UID;
	data->gid = GLOBAL_ROOT_GID;
	data->file_mode = NCP_DEFAULT_FILE_MODE;
	data->dir_mode = NCP_DEFAULT_DIR_MODE;
	data->info_fd = -1;
	data->mounted_vol[0] = 0;
	
	while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) {
		ret = optval;
		if (ret < 0)
			goto err;
		switch (optval) {
			case 'u':
				data->uid = make_kuid(current_user_ns(), optint);
				if (!uid_valid(data->uid)) {
					ret = -EINVAL;
					goto err;
				}
				break;
			case 'g':
				data->gid = make_kgid(current_user_ns(), optint);
				if (!gid_valid(data->gid)) {
					ret = -EINVAL;
					goto err;
				}
				break;
			case 'o':
				data->mounted_uid = make_kuid(current_user_ns(), optint);
				if (!uid_valid(data->mounted_uid)) {
					ret = -EINVAL;
					goto err;
				}
				break;
			case 'm':
				data->file_mode = optint;
				break;
			case 'd':
				data->dir_mode = optint;
				break;
			case 't':
				data->time_out = optint;
				break;
			case 'r':
				data->retry_count = optint;
				break;
			case 'f':
				data->flags = optint;
				break;
			case 'w':
				data->wdog_pid = find_get_pid(optint);
				break;
			case 'n':
				data->ncp_fd = optint;
				break;
			case 'i':
				data->info_fd = optint;
				break;
			case 'v':
				ret = -ECHRNG;
				if (optint < NCP_MOUNT_VERSION_V4)
					goto err;
				if (optint > NCP_MOUNT_VERSION_V5)
					goto err;
				version = optint;
				break;
			
		}
	}
	return 0;
err:
	put_pid(data->wdog_pid);
	data->wdog_pid = NULL;
	return ret;
}

Contributors
Person
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CommitProp
Petr Vandrovec
278
68.30%
2
28.57%
Eric W. Biedermann
104
25.55%
3
42.86%
Wei Yongjun
21
5.16%
1
14.29%
Miklos Szeredi
4
0.98%
1
14.29%
Total
407
100.00%
7
100.00%



static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
{
	struct ncp_mount_data_kernel data;
	struct ncp_server *server;
	struct inode *root_inode;
	struct socket *sock;
	int error;
	int default_bufsize;
#ifdef CONFIG_NCPFS_PACKET_SIGNING
	int options;
#endif
	struct ncp_entry_info finfo;

	memset(&data, 0, sizeof(data));
	server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL);
	if (!server)
		return -ENOMEM;
	sb->s_fs_info = server;

	error = -EFAULT;
	if (raw_data == NULL)
		goto out;
	switch (*(int*)raw_data) {
		case NCP_MOUNT_VERSION:
			{
				struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;

				data.flags = md->flags;
				data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
				data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid);
				data.wdog_pid = find_get_pid(md->wdog_pid);
				data.ncp_fd = md->ncp_fd;
				data.time_out = md->time_out;
				data.retry_count = md->retry_count;
				data.uid = make_kuid(current_user_ns(), md->uid);
				data.gid = make_kgid(current_user_ns(), md->gid);
				data.file_mode = md->file_mode;
				data.dir_mode = md->dir_mode;
				data.info_fd = -1;
				memcpy(data.mounted_vol, md->mounted_vol,
					NCP_VOLNAME_LEN+1);
			}
			break;
		case NCP_MOUNT_VERSION_V4:
			{
				struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;

				data.flags = md->flags;
				data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid);
				data.wdog_pid = find_get_pid(md->wdog_pid);
				data.ncp_fd = md->ncp_fd;
				data.time_out = md->time_out;
				data.retry_count = md->retry_count;
				data.uid = make_kuid(current_user_ns(), md->uid);
				data.gid = make_kgid(current_user_ns(), md->gid);
				data.file_mode = md->file_mode;
				data.dir_mode = md->dir_mode;
				data.info_fd = -1;
			}
			break;
		default:
			error = -ECHRNG;
			if (memcmp(raw_data, "vers", 4) == 0) {
				error = ncp_parse_options(&data, raw_data);
			}
			if (error)
				goto out;
			break;
	}
	error = -EINVAL;
	if (!uid_valid(data.mounted_uid) || !uid_valid(data.uid) ||
	    !gid_valid(data.gid))
		goto out;
	sock = sockfd_lookup(data.ncp_fd, &error);
	if (!sock)
		goto out;

	if (sock->type == SOCK_STREAM)
		default_bufsize = 0xF000;
	else
		default_bufsize = 1024;

	sb->s_flags |= MS_NODIRATIME;	/* probably even noatime */
	sb->s_maxbytes = 0xFFFFFFFFU;
	sb->s_blocksize = 1024;	/* Eh...  Is this correct? */
	sb->s_blocksize_bits = 10;
	sb->s_magic = NCP_SUPER_MAGIC;
	sb->s_op = &ncp_sops;
	sb->s_d_op = &ncp_dentry_operations;
	sb->s_bdi = &server->bdi;

	server = NCP_SBP(sb);
	memset(server, 0, sizeof(*server));

	error = bdi_setup_and_register(&server->bdi, "ncpfs");
	if (error)
		goto out_fput;

	server->ncp_sock = sock;
	
	if (data.info_fd != -1) {
		struct socket *info_sock = sockfd_lookup(data.info_fd, &error);
		if (!info_sock)
			goto out_bdi;
		server->info_sock = info_sock;
		error = -EBADFD;
		if (info_sock->type != SOCK_STREAM)
			goto out_fput2;
	}

/*      server->lock = 0;       */
	mutex_init(&server->mutex);
	server->packet = NULL;
/*      server->buffer_size = 0;        */
/*      server->conn_status = 0;        */
/*      server->root_dentry = NULL;     */
/*      server->root_setuped = 0;       */
	mutex_init(&server->root_setup_lock);
#ifdef CONFIG_NCPFS_PACKET_SIGNING
/*      server->sign_wanted = 0;        */
/*      server->sign_active = 0;        */
#endif
	init_rwsem(&server->auth_rwsem);
	server->auth.auth_type = NCP_AUTH_NONE;
/*      server->auth.object_name_len = 0;       */
/*      server->auth.object_name = NULL;        */
/*      server->auth.object_type = 0;           */
/*      server->priv.len = 0;                   */
/*      server->priv.data = NULL;               */

	server->m = data;
	/* Although anything producing this is buggy, it happens
           now because of PATH_MAX changes.. */
	if (server->m.time_out < 1) {
		server->m.time_out = 10;
		pr_info("You need to recompile your ncpfs utils..\n");
	}
	server->m.time_out = server->m.time_out * HZ / 100;
	server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
	server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;

#ifdef CONFIG_NCPFS_NLS
	/* load the default NLS charsets */
	server->nls_vol = load_nls_default();
	server->nls_io = load_nls_default();
#endif /* CONFIG_NCPFS_NLS */

	atomic_set(&server->dentry_ttl, 0);	/* no caching */

	INIT_LIST_HEAD(&server->tx.requests);
	mutex_init(&server->rcv.creq_mutex);
	server->tx.creq		= NULL;
	server->rcv.creq	= NULL;

	init_timer(&server->timeout_tm);

#undef NCP_PACKET_SIZE

#define NCP_PACKET_SIZE 131072
	error = -ENOMEM;
	server->packet_size = NCP_PACKET_SIZE;
	server->packet = vmalloc(NCP_PACKET_SIZE);
	if (server->packet == NULL)
		goto out_nls;
	server->txbuf = vmalloc(NCP_PACKET_SIZE);
	if (server->txbuf == NULL)
		goto out_packet;
	server->rxbuf = vmalloc(NCP_PACKET_SIZE);
	if (server->rxbuf == NULL)
		goto out_txbuf;

	lock_sock(sock->sk);
	server->data_ready	= sock->sk->sk_data_ready;
	server->write_space	= sock->sk->sk_write_space;
	server->error_report	= sock->sk->sk_error_report;
	sock->sk->sk_user_data	= server;
	sock->sk->sk_data_ready	  = ncp_tcp_data_ready;
	sock->sk->sk_error_report = ncp_tcp_error_report;
	if (sock->type == SOCK_STREAM) {
		server->rcv.ptr = (unsigned char*)&server->rcv.buf;
		server->rcv.len = 10;
		server->rcv.state = 0;
		INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc);
		INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc);
		sock->sk->sk_write_space = ncp_tcp_write_space;
	} else {
		INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
		INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
		server->timeout_tm.data = (unsigned long)server;
		server->timeout_tm.function = ncpdgram_timeout_call;
	}
	release_sock(sock->sk);

	ncp_lock_server(server);
	error = ncp_connect(server);
	ncp_unlock_server(server);
	if (error < 0)
		goto out_rxbuf;
	ncp_dbg(1, "NCP_SBP(sb) = %p\n", NCP_SBP(sb));

	error = -EMSGSIZE;	/* -EREMOTESIDEINCOMPATIBLE */
#ifdef CONFIG_NCPFS_PACKET_SIGNING
	if (ncp_negotiate_size_and_options(server, default_bufsize,
		NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
	{
		if (options != NCP_DEFAULT_OPTIONS)
		{
			if (ncp_negotiate_size_and_options(server, 
				default_bufsize,
				options & 2, 
				&(server->buffer_size), &options) != 0)
				
			{
				goto out_disconnect;
			}
		}
		ncp_lock_server(server);
		if (options & 2)
			server->sign_wanted = 1;
		ncp_unlock_server(server);
	}
	else 
#endif	/* CONFIG_NCPFS_PACKET_SIGNING */
	if (ncp_negotiate_buffersize(server, default_bufsize,
  				     &(server->buffer_size)) != 0)
		goto out_disconnect;
	ncp_dbg(1, "bufsize = %d\n", server->buffer_size);

	memset(&finfo, 0, sizeof(finfo));
	finfo.i.attributes	= aDIR;
	finfo.i.dataStreamSize	= 0;	/* ignored */
	finfo.i.dirEntNum	= 0;
	finfo.i.DosDirNum	= 0;
#ifdef CONFIG_NCPFS_SMALLDOS
	finfo.i.NSCreator	= NW_NS_DOS;
#endif
	finfo.volume		= NCP_NUMBER_OF_VOLUMES;
	/* set dates of mountpoint to Jan 1, 1986; 00:00 */
	finfo.i.creationTime	= finfo.i.modifyTime
				= cpu_to_le16(0x0000);
	finfo.i.creationDate	= finfo.i.modifyDate
				= finfo.i.lastAccessDate
				= cpu_to_le16(0x0C21);
	finfo.i.nameLen		= 0;
	finfo.i.entryName[0]	= '\0';

	finfo.opened		= 0;
	finfo.ino		= 2;	/* tradition */

	server->name_space[finfo.volume] = NW_NS_DOS;

	error = -ENOMEM;
        root_inode = ncp_iget(sb, &finfo);
        if (!root_inode)
		goto out_disconnect;
	ncp_dbg(1, "root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
	sb->s_root = d_make_root(root_inode);
        if (!sb->s_root)
		goto out_disconnect;
	return 0;

out_disconnect:
	ncp_lock_server(server);
	ncp_disconnect(server);
	ncp_unlock_server(server);
out_rxbuf:
	ncp_stop_tasks(server);
	vfree(server->rxbuf);
out_txbuf:
	vfree(server->txbuf);
out_packet:
	vfree(server->packet);
out_nls:
#ifdef CONFIG_NCPFS_NLS
	unload_nls(server->nls_io);
	unload_nls(server->nls_vol);
#endif
	mutex_destroy(&server->rcv.creq_mutex);
	mutex_destroy(&server->root_setup_lock);
	mutex_destroy(&server->mutex);
out_fput2:
	if (server->info_sock)
		sockfd_put(server->info_sock);
out_bdi:
	bdi_destroy(&server->bdi);
out_fput:
	sockfd_put(sock);
out:
	put_pid(data.wdog_pid);
	sb->s_fs_info = NULL;
	kfree(server);
	return error;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
930
55.72%
13
29.55%
Petr Vandrovec
433
25.94%
7
15.91%
Eric W. Biedermann
82
4.91%
3
6.82%
Pierre Ossman
60
3.59%
1
2.27%
Al Viro
42
2.52%
6
13.64%
Brian Gerst
38
2.28%
2
4.55%
Jens Axboe
36
2.16%
1
2.27%
Andrew Morton
18
1.08%
2
4.55%
Joe Perches
13
0.78%
3
6.82%
Ingo Molnar
8
0.48%
2
4.55%
Djalal Harouni
4
0.24%
1
2.27%
Arnaldo Carvalho de Melo
3
0.18%
1
2.27%
Lucas De Marchi
1
0.06%
1
2.27%
Panagiotis Issaris
1
0.06%
1
2.27%
Total
1669
100.00%
44
100.00%



static void delayed_free(struct rcu_head *p)
{
	struct ncp_server *server = container_of(p, struct ncp_server, rcu);
#ifdef CONFIG_NCPFS_NLS
	/* unload the NLS charsets */
	unload_nls(server->nls_vol);
	unload_nls(server->nls_io);
#endif /* CONFIG_NCPFS_NLS */
	kfree(server);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Al Viro
52
100.00%
1
100.00%
Total
52
100.00%
1
100.00%



static void ncp_put_super(struct super_block *sb)
{
	struct ncp_server *server = NCP_SBP(sb);

	ncp_lock_server(server);
	ncp_disconnect(server);
	ncp_unlock_server(server);

	ncp_stop_tasks(server);

	mutex_destroy(&server->rcv.creq_mutex);
	mutex_destroy(&server->root_setup_lock);
	mutex_destroy(&server->mutex);

	if (server->info_sock)
		sockfd_put(server->info_sock);
	sockfd_put(server->ncp_sock);
	kill_pid(server->m.wdog_pid, SIGTERM, 1);
	put_pid(server->m.wdog_pid);

	bdi_destroy(&server->bdi);
	kfree(server->priv.data);
	kfree(server->auth.object_name);
	vfree(server->rxbuf);
	vfree(server->txbuf);
	vfree(server->packet);
	call_rcu(&server->rcu, delayed_free);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
76
45.78%
6
37.50%
Petr Vandrovec
41
24.70%
3
18.75%
Pierre Ossman
14
8.43%
1
6.25%
Al Viro
11
6.63%
2
12.50%
Eric W. Biedermann
10
6.02%
1
6.25%
Jens Axboe
8
4.82%
1
6.25%
Brian Gerst
4
2.41%
1
6.25%
Pekka J Enberg
2
1.20%
1
6.25%
Total
166
100.00%
16
100.00%



static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)
{
	struct dentry* d;
	struct inode* i;
	struct ncp_inode_info* ni;
	struct ncp_server* s;
	struct ncp_volume_info vi;
	struct super_block *sb = dentry->d_sb;
	int err;
	__u8 dh;
	
	d = sb->s_root;
	if (!d) {
		goto dflt;
	}
	i = d_inode(d);
	if (!i) {
		goto dflt;
	}
	ni = NCP_FINFO(i);
	if (!ni) {
		goto dflt;
	}
	s = NCP_SBP(sb);
	if (!s) {
		goto dflt;
	}
	if (!s->m.mounted_vol[0]) {
		goto dflt;
	}

	err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh);
	if (err) {
		goto dflt;
	}
	err = ncp_get_directory_info(s, dh, &vi);
	ncp_dirhandle_free(s, dh);
	if (err) {
		goto dflt;
	}
	buf->f_type = NCP_SUPER_MAGIC;
	buf->f_bsize = vi.sectors_per_block * 512;
	buf->f_blocks = vi.total_blocks;
	buf->f_bfree = vi.free_blocks;
	buf->f_bavail = vi.free_blocks;
	buf->f_files = vi.total_dir_entries;
	buf->f_ffree = vi.available_dir_entries;
	buf->f_namelen = 12;
	return 0;

	/* We cannot say how much disk space is left on a mounted
           NetWare Server, because free space is distributed over
           volumes, and the current user might have disk quotas. So
           free space is not that simple to determine. Our decision
           here is to err conservatively. */

dflt:;
	buf->f_type = NCP_SUPER_MAGIC;
	buf->f_bsize = NCP_BLOCK_SIZE;
	buf->f_blocks = 0;
	buf->f_bfree = 0;
	buf->f_bavail = 0;
	buf->f_namelen = 12;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Petr Vandrovec
234
77.48%
1
11.11%
Linus Torvalds (pre-git)
53
17.55%
5
55.56%
David Howells
14
4.64%
2
22.22%
Andrew Morton
1
0.33%
1
11.11%
Total
302
100.00%
9
100.00%



int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
{
	struct inode *inode = d_inode(dentry);
	int result = 0;
	__le32 info_mask;
	struct nw_modify_dos_info info;
	struct ncp_server *server;

	result = -EIO;

	server = NCP_SERVER(inode);
	if (!server)	/* How this could happen? */
		goto out;

	result = -EPERM;
	if (IS_DEADDIR(d_inode(dentry)))
		goto out;

	/* ageing the dentry to force validation */
	ncp_age_dentry(server, dentry);

	result = setattr_prepare(dentry, attr);
	if (result < 0)
		goto out;

	result = -EPERM;
	if ((attr->ia_valid & ATTR_UID) && !uid_eq(attr->ia_uid, server->m.uid))
		goto out;

	if ((attr->ia_valid & ATTR_GID) && !gid_eq(attr->ia_gid, server->m.gid))
		goto out;

	if (((attr->ia_valid & ATTR_MODE) &&
	     (attr->ia_mode &
	      ~(S_IFREG | S_IFDIR | S_IRWXUGO))))
		goto out;

	info_mask = 0;
	memset(&info, 0, sizeof(info));

#if 1 
        if ((attr->ia_valid & ATTR_MODE) != 0)
        {
		umode_t newmode = attr->ia_mode;

		info_mask |= DM_ATTRIBUTES;

                if (S_ISDIR(inode->i_mode)) {
                	newmode &= server->m.dir_mode;
		} else {
#ifdef CONFIG_NCPFS_EXTRAS			
			if (server->m.flags & NCP_MOUNT_EXTRAS) {
				/* any non-default execute bit set */
				if (newmode & ~server->m.file_mode & S_IXUGO)
					info.attributes |= aSHARED | aSYSTEM;
				/* read for group/world and not in default file_mode */
				else if (newmode & ~server->m.file_mode & S_IRUGO)
					info.attributes |= aSHARED;
			} else
#endif
				newmode &= server->m.file_mode;			
                }
                if (newmode & S_IWUGO)
                	info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
                else
			info.attributes |=  (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);

#ifdef CONFIG_NCPFS_NFS_NS
		if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
			result = ncp_modify_nfs_info(server,
						     NCP_FINFO(inode)->volNumber,
						     NCP_FINFO(inode)->dirEntNum,
						     attr->ia_mode, 0);
			if (result != 0)
				goto out;
			info.attributes &= ~(aSHARED | aSYSTEM);
			{
				/* mark partial success */
				struct iattr tmpattr;
				
				tmpattr.ia_valid = ATTR_MODE;
				tmpattr.ia_mode = attr->ia_mode;

				setattr_copy(inode, &tmpattr);
				mark_inode_dirty(inode);
			}
		}
#endif
        }
#endif

	/* Do SIZE before attributes, otherwise mtime together with size does not work...
         */
	if ((attr->ia_valid & ATTR_SIZE) != 0) {
		int written;

		ncp_dbg(1, "trying to change size to %llu\n", attr->ia_size);

		if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
			result = -EACCES;
			goto out;
		}
		ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
			  attr->ia_size, 0, "", &written);

		/* According to ndir, the changes only take effect after
                   closing the file */
		ncp_inode_close(inode);
		result = ncp_make_closed(inode);
		if (result)
			goto out;

		if (attr->ia_size != i_size_read(inode)) {
			truncate_setsize(inode, attr->ia_size);
			mark_inode_dirty(inode);
		}
	}
	if ((attr->ia_valid & ATTR_CTIME) != 0) {
		info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
		ncp_date_unix2dos(attr->ia_ctime.tv_sec,
			     &info.creationTime, &info.creationDate);
	}
	if ((attr->ia_valid & ATTR_MTIME) != 0) {
		info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
		ncp_date_unix2dos(attr->ia_mtime.tv_sec,
				  &info.modifyTime, &info.modifyDate);
	}
	if ((attr->ia_valid & ATTR_ATIME) != 0) {
		__le16 dummy;
		info_mask |= (DM_LAST_ACCESS_DATE);
		ncp_date_unix2dos(attr->ia_atime.tv_sec,
				  &dummy, &info.lastAccessDate);
	}
	if (info_mask != 0) {
		result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
				      inode, info_mask, &info);
		if (result != 0) {
			if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
				/* NetWare seems not to allow this. I
                                   do not know why. So, just tell the
                                   user everything went fine. This is
                                   a terrible hack, but I do not know
                                   how to do this correctly. */
				result = 0;
			} else
				goto out;
		}
#ifdef CONFIG_NCPFS_STRONG		
		if ((!result) && (info_mask & DM_ATTRIBUTES))
			NCP_FINFO(inode)->nwattr = info.attributes;
#endif
	}
	if (result)
		goto out;

	setattr_copy(inode, attr);
	mark_inode_dirty(inode);

out:
	if (result > 0)
		result = -EACCES;
	return result;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
491
58.80%
11
39.29%
Petr Vandrovec
256
30.66%
3
10.71%
Christoph Hellwig
32
3.83%
1
3.57%
Al Viro
17
2.04%
3
10.71%
Eric W. Biedermann
10
1.20%
1
3.57%
Andrew Morton
8
0.96%
2
7.14%
Andi Kleen
6
0.72%
1
3.57%
David Howells
6
0.72%
1
3.57%
Joe Perches
4
0.48%
2
7.14%
Dave Hansen
2
0.24%
1
3.57%
Jan Kara
2
0.24%
1
3.57%
Marco Stornelli
1
0.12%
1
3.57%
Total
835
100.00%
28
100.00%



static struct dentry *ncp_mount(struct file_system_type *fs_type,
	int flags, const char *dev_name, void *data)
{
	return mount_nodev(fs_type, flags, data, ncp_fill_super);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Al Viro
30
81.08%
2
40.00%
Linus Torvalds (pre-git)
6
16.22%
2
40.00%
Andries E. Brouwer
1
2.70%
1
20.00%
Total
37
100.00%
5
100.00%


static struct file_system_type ncp_fs_type = {
	.owner		= THIS_MODULE,
	.name		= "ncpfs",
	.mount		= ncp_mount,
	.kill_sb	= kill_anon_super,
	.fs_flags	= FS_BINARY_MOUNTDATA,
};
MODULE_ALIAS_FS("ncpfs");



static int __init init_ncp_fs(void)
{
	int err;
	ncp_dbg(1, "called\n");

	err = init_inodecache();
	if (err)
		goto out1;
	err = register_filesystem(&ncp_fs_type);
	if (err)
		goto out;
	return 0;
out:
	destroy_inodecache();
out1:
	return err;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds
37
62.71%
1
16.67%
Linus Torvalds (pre-git)
18
30.51%
4
66.67%
Joe Perches
4
6.78%
1
16.67%
Total
59
100.00%
6
100.00%



static void __exit exit_ncp_fs(void)
{
	ncp_dbg(1, "called\n");
	unregister_filesystem(&ncp_fs_type);
	destroy_inodecache();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
18
72.00%
3
60.00%
Joe Perches
4
16.00%
1
20.00%
Linus Torvalds
3
12.00%
1
20.00%
Total
25
100.00%
5
100.00%

module_init(init_ncp_fs)
module_exit(exit_ncp_fs)
MODULE_LICENSE("GPL");
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
2356
41.90%
34
26.56%
Petr Vandrovec
1758
31.26%
12
9.38%
Miklos Szeredi
305
5.42%
2
1.56%
Eric W. Biedermann
247
4.39%
4
3.12%
Al Viro
229
4.07%
21
16.41%
Linus Torvalds
207
3.68%
5
3.91%
Pierre Ossman
74
1.32%
1
0.78%
Joe Perches
60
1.07%
3
2.34%
Jens Axboe
44
0.78%
1
0.78%
Nicholas Piggin
42
0.75%
2
1.56%
Brian Gerst
42
0.75%
2
1.56%
Tejun Heo
38
0.68%
2
1.56%
Andi Kleen
36
0.64%
1
0.78%
Christoph Hellwig
35
0.62%
2
1.56%
Andrew Morton
29
0.52%
6
4.69%
David Howells
21
0.37%
2
1.56%
Wei Yongjun
21
0.37%
1
0.78%
Rusty Russell
13
0.23%
1
0.78%
Ingo Molnar
13
0.23%
3
2.34%
Mark Fasheh
7
0.12%
1
0.78%
Arnaldo Carvalho de Melo
6
0.11%
1
0.78%
Christoph Lameter
6
0.11%
3
2.34%
Theodore Y. Ts'o
5
0.09%
1
0.78%
Kirill A. Shutemov
4
0.07%
1
0.78%
Paul Jackson
4
0.07%
2
1.56%
Djalal Harouni
4
0.07%
1
0.78%
Jan Kara
3
0.05%
2
1.56%
Vladimir Davydov
2
0.04%
1
0.78%
Pekka J Enberg
2
0.04%
1
0.78%
Dave Hansen
2
0.04%
1
0.78%
Dave Jones
1
0.02%
1
0.78%
Johannes Weiner
1
0.02%
1
0.78%
Josef 'Jeff' Sipek
1
0.02%
1
0.78%
Marco Stornelli
1
0.02%
1
0.78%
Lucas De Marchi
1
0.02%
1
0.78%
Arjan van de Ven
1
0.02%
1
0.78%
Andries E. Brouwer
1
0.02%
1
0.78%
Panagiotis Issaris
1
0.02%
1
0.78%
Total
5623
100.00%
128
100.00%
Directory: fs/ncpfs

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