1 files changed, 0 insertions, 381 deletions
diff --git a/fs/ksmbd/misc.c b/fs/ksmbd/misc.c
deleted file mode 100644
index 9e8afaa686e3..000000000000
--- a/fs/ksmbd/misc.c
+++ /dev/null
@@ -1,381 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *   Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org>
- *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
- */
-
-#include <linux/kernel.h>
-#include <linux/xattr.h>
-#include <linux/fs.h>
-#include <linux/unicode.h>
-
-#include "misc.h"
-#include "smb_common.h"
-#include "connection.h"
-#include "vfs.h"
-
-#include "mgmt/share_config.h"
-
-/**
- * match_pattern() - compare a string with a pattern which might include
- * wildcard '*' and '?'
- * TODO : implement consideration about DOS_DOT, DOS_QM and DOS_STAR
- *
- * @str:	string to compare with a pattern
- * @len:	string length
- * @pattern:	pattern string which might include wildcard '*' and '?'
- *
- * Return:	0 if pattern matched with the string, otherwise non zero value
- */
-int match_pattern(const char *str, size_t len, const char *pattern)
-{
-	const char *s = str;
-	const char *p = pattern;
-	bool star = false;
-
-	while (*s && len) {
-		switch (*p) {
-		case '?':
-			s++;
-			len--;
-			p++;
-			break;
-		case '*':
-			star = true;
-			str = s;
-			if (!*++p)
-				return true;
-			pattern = p;
-			break;
-		default:
-			if (tolower(*s) == tolower(*p)) {
-				s++;
-				len--;
-				p++;
-			} else {
-				if (!star)
-					return false;
-				str++;
-				s = str;
-				p = pattern;
-			}
-			break;
-		}
-	}
-
-	if (*p == '*')
-		++p;
-	return !*p;
-}
-
-/*
- * is_char_allowed() - check for valid character
- * @ch:		input character to be checked
- *
- * Return:	1 if char is allowed, otherwise 0
- */
-static inline int is_char_allowed(char ch)
-{
-	/* check for control chars, wildcards etc. */
-	if (!(ch & 0x80) &&
-	    (ch <= 0x1f ||
-	     ch == '?' || ch == '"' || ch == '<' ||
-	     ch == '>' || ch == '|' || ch == '*'))
-		return 0;
-
-	return 1;
-}
-
-int ksmbd_validate_filename(char *filename)
-{
-	while (*filename) {
-		char c = *filename;
-
-		filename++;
-		if (!is_char_allowed(c)) {
-			ksmbd_debug(VFS, "File name validation failed: 0x%x\n", c);
-			return -ENOENT;
-		}
-	}
-
-	return 0;
-}
-
-static int ksmbd_validate_stream_name(char *stream_name)
-{
-	while (*stream_name) {
-		char c = *stream_name;
-
-		stream_name++;
-		if (c == '/' || c == ':' || c == '\\') {
-			pr_err("Stream name validation failed: %c\n", c);
-			return -ENOENT;
-		}
-	}
-
-	return 0;
-}
-
-int parse_stream_name(char *filename, char **stream_name, int *s_type)
-{
-	char *stream_type;
-	char *s_name;
-	int rc = 0;
-
-	s_name = filename;
-	filename = strsep(&s_name, ":");
-	ksmbd_debug(SMB, "filename : %s, streams : %s\n", filename, s_name);
-	if (strchr(s_name, ':')) {
-		stream_type = s_name;
-		s_name = strsep(&stream_type, ":");
-
-		rc = ksmbd_validate_stream_name(s_name);
-		if (rc < 0) {
-			rc = -ENOENT;
-			goto out;
-		}
-
-		ksmbd_debug(SMB, "stream name : %s, stream type : %s\n", s_name,
-			    stream_type);
-		if (!strncasecmp("$data", stream_type, 5))
-			*s_type = DATA_STREAM;
-		else if (!strncasecmp("$index_allocation", stream_type, 17))
-			*s_type = DIR_STREAM;
-		else
-			rc = -ENOENT;
-	}
-
-	*stream_name = s_name;
-out:
-	return rc;
-}
-
-/**
- * convert_to_nt_pathname() - extract and return windows path string
- *      whose share directory prefix was removed from file path
- * @share: ksmbd_share_config pointer
- * @path: path to report
- *
- * Return : windows path string or error
- */
-
-char *convert_to_nt_pathname(struct ksmbd_share_config *share,
-			     const struct path *path)
-{
-	char *pathname, *ab_pathname, *nt_pathname;
-	int share_path_len = share->path_sz;
-
-	pathname = kmalloc(PATH_MAX, GFP_KERNEL);
-	if (!pathname)
-		return ERR_PTR(-EACCES);
-
-	ab_pathname = d_path(path, pathname, PATH_MAX);
-	if (IS_ERR(ab_pathname)) {
-		nt_pathname = ERR_PTR(-EACCES);
-		goto free_pathname;
-	}
-
-	if (strncmp(ab_pathname, share->path, share_path_len)) {
-		nt_pathname = ERR_PTR(-EACCES);
-		goto free_pathname;
-	}
-
-	nt_pathname = kzalloc(strlen(&ab_pathname[share_path_len]) + 2, GFP_KERNEL);
-	if (!nt_pathname) {
-		nt_pathname = ERR_PTR(-ENOMEM);
-		goto free_pathname;
-	}
-	if (ab_pathname[share_path_len] == '\0')
-		strcpy(nt_pathname, "/");
-	strcat(nt_pathname, &ab_pathname[share_path_len]);
-
-	ksmbd_conv_path_to_windows(nt_pathname);
-
-free_pathname:
-	kfree(pathname);
-	return nt_pathname;
-}
-
-int get_nlink(struct kstat *st)
-{
-	int nlink;
-
-	nlink = st->nlink;
-	if (S_ISDIR(st->mode))
-		nlink--;
-
-	return nlink;
-}
-
-void ksmbd_conv_path_to_unix(char *path)
-{
-	strreplace(path, '\\', '/');
-}
-
-void ksmbd_strip_last_slash(char *path)
-{
-	int len = strlen(path);
-
-	while (len && path[len - 1] == '/') {
-		path[len - 1] = '\0';
-		len--;
-	}
-}
-
-void ksmbd_conv_path_to_windows(char *path)
-{
-	strreplace(path, '/', '\\');
-}
-
-char *ksmbd_casefold_sharename(struct unicode_map *um, const char *name)
-{
-	char *cf_name;
-	int cf_len;
-
-	cf_name = kzalloc(KSMBD_REQ_MAX_SHARE_NAME, GFP_KERNEL);
-	if (!cf_name)
-		return ERR_PTR(-ENOMEM);
-
-	if (IS_ENABLED(CONFIG_UNICODE) && um) {
-		const struct qstr q_name = {.name = name, .len = strlen(name)};
-
-		cf_len = utf8_casefold(um, &q_name, cf_name,
-				       KSMBD_REQ_MAX_SHARE_NAME);
-		if (cf_len < 0)
-			goto out_ascii;
-
-		return cf_name;
-	}
-
-out_ascii:
-	cf_len = strscpy(cf_name, name, KSMBD_REQ_MAX_SHARE_NAME);
-	if (cf_len < 0) {
-		kfree(cf_name);
-		return ERR_PTR(-E2BIG);
-	}
-
-	for (; *cf_name; ++cf_name)
-		*cf_name = isascii(*cf_name) ? tolower(*cf_name) : *cf_name;
-	return cf_name - cf_len;
-}
-
-/**
- * ksmbd_extract_sharename() - get share name from tree connect request
- * @treename:	buffer containing tree name and share name
- *
- * Return:      share name on success, otherwise error
- */
-char *ksmbd_extract_sharename(struct unicode_map *um, const char *treename)
-{
-	const char *name = treename, *pos = strrchr(name, '\\');
-
-	if (pos)
-		name = (pos + 1);
-
-	/* caller has to free the memory */
-	return ksmbd_casefold_sharename(um, name);
-}
-
-/**
- * convert_to_unix_name() - convert windows name to unix format
- * @share:	ksmbd_share_config pointer
- * @name:	file name that is relative to share
- *
- * Return:	converted name on success, otherwise NULL
- */
-char *convert_to_unix_name(struct ksmbd_share_config *share, const char *name)
-{
-	int no_slash = 0, name_len, path_len;
-	char *new_name;
-
-	if (name[0] == '/')
-		name++;
-
-	path_len = share->path_sz;
-	name_len = strlen(name);
-	new_name = kmalloc(path_len + name_len + 2, GFP_KERNEL);
-	if (!new_name)
-		return new_name;
-
-	memcpy(new_name, share->path, path_len);
-	if (new_name[path_len - 1] != '/') {
-		new_name[path_len] = '/';
-		no_slash = 1;
-	}
-
-	memcpy(new_name + path_len + no_slash, name, name_len);
-	path_len += name_len + no_slash;
-	new_name[path_len] = 0x00;
-	return new_name;
-}
-
-char *ksmbd_convert_dir_info_name(struct ksmbd_dir_info *d_info,
-				  const struct nls_table *local_nls,
-				  int *conv_len)
-{
-	char *conv;
-	int  sz = min(4 * d_info->name_len, PATH_MAX);
-
-	if (!sz)
-		return NULL;
-
-	conv = kmalloc(sz, GFP_KERNEL);
-	if (!conv)
-		return NULL;
-
-	/* XXX */
-	*conv_len = smbConvertToUTF16((__le16 *)conv, d_info->name,
-				      d_info->name_len, local_nls, 0);
-	*conv_len *= 2;
-
-	/* We allocate buffer twice bigger than needed. */
-	conv[*conv_len] = 0x00;
-	conv[*conv_len + 1] = 0x00;
-	return conv;
-}
-
-/*
- * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
- * into Unix UTC (based 1970-01-01, in seconds).
- */
-struct timespec64 ksmbd_NTtimeToUnix(__le64 ntutc)
-{
-	struct timespec64 ts;
-
-	/* Subtract the NTFS time offset, then convert to 1s intervals. */
-	s64 t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET;
-	u64 abs_t;
-
-	/*
-	 * Unfortunately can not use normal 64 bit division on 32 bit arch, but
-	 * the alternative, do_div, does not work with negative numbers so have
-	 * to special case them
-	 */
-	if (t < 0) {
-		abs_t = -t;
-		ts.tv_nsec = do_div(abs_t, 10000000) * 100;
-		ts.tv_nsec = -ts.tv_nsec;
-		ts.tv_sec = -abs_t;
-	} else {
-		abs_t = t;
-		ts.tv_nsec = do_div(abs_t, 10000000) * 100;
-		ts.tv_sec = abs_t;
-	}
-
-	return ts;
-}
-
-/* Convert the Unix UTC into NT UTC. */
-inline u64 ksmbd_UnixTimeToNT(struct timespec64 t)
-{
-	/* Convert to 100ns intervals and then add the NTFS time offset. */
-	return (u64)t.tv_sec * 10000000 + t.tv_nsec / 100 + NTFS_TIME_OFFSET;
-}
-
-inline long long ksmbd_systime(void)
-{
-	struct timespec64	ts;
-
-	ktime_get_real_ts64(&ts);
-	return ksmbd_UnixTimeToNT(ts);
-}