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-rw-r--r--fs/cifs/cifs_fs_sb.h1
-rw-r--r--fs/cifs/cifs_unicode.c203
-rw-r--r--fs/cifs/cifs_unicode.h31
-rw-r--r--fs/cifs/cifsencrypt.c2
-rw-r--r--fs/cifs/cifsglob.h6
-rw-r--r--fs/cifs/cifssmb.c16
-rw-r--r--fs/cifs/connect.c46
-rw-r--r--fs/cifs/dir.c22
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/inode.c57
-rw-r--r--fs/cifs/link.c145
-rw-r--r--fs/cifs/readdir.c8
-rw-r--r--fs/cifs/smb1ops.c33
-rw-r--r--fs/cifs/smb2misc.c12
-rw-r--r--fs/cifs/smb2ops.c27
-rw-r--r--fs/cifs/smb2pdu.c2
-rw-r--r--fs/cifs/smb2pdu.h2
-rw-r--r--fs/cifs/smb2proto.h8
-rw-r--r--fs/cifs/smbencrypt.c1
-rw-r--r--fs/cifs/xattr.c32
20 files changed, 489 insertions, 171 deletions
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 9409fa10bd5c..3182273a3407 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -45,6 +45,7 @@
#define CIFS_MOUNT_POSIXACL 0x100000 /* mirror of MS_POSIXACL in mnt_cifs_flags */
#define CIFS_MOUNT_CIFS_BACKUPUID 0x200000 /* backup intent bit for a user */
#define CIFS_MOUNT_CIFS_BACKUPGID 0x400000 /* backup intent bit for a group */
+#define CIFS_MOUNT_MAP_SFM_CHR 0x800000 /* SFM/MAC mapping for illegal chars */
struct cifs_sb_info {
struct rb_root tlink_tree;
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index 15e9505aa35f..0303c6793d90 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -20,6 +20,7 @@
*/
#include <linux/fs.h>
#include <linux/slab.h>
+#include "cifs_fs_sb.h"
#include "cifs_unicode.h"
#include "cifs_uniupr.h"
#include "cifspdu.h"
@@ -61,26 +62,24 @@ cifs_utf16_bytes(const __le16 *from, int maxbytes,
return outlen;
}
-/*
- * cifs_mapchar - convert a host-endian char to proper char in codepage
- * @target - where converted character should be copied
- * @src_char - 2 byte host-endian source character
- * @cp - codepage to which character should be converted
- * @mapchar - should character be mapped according to mapchars mount option?
- *
- * This function handles the conversion of a single character. It is the
- * responsibility of the caller to ensure that the target buffer is large
- * enough to hold the result of the conversion (at least NLS_MAX_CHARSET_SIZE).
- */
-static int
-cifs_mapchar(char *target, const __u16 src_char, const struct nls_table *cp,
- bool mapchar)
+int cifs_remap(struct cifs_sb_info *cifs_sb)
{
- int len = 1;
+ int map_type;
+
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SFM_CHR)
+ map_type = SFM_MAP_UNI_RSVD;
+ else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR)
+ map_type = SFU_MAP_UNI_RSVD;
+ else
+ map_type = NO_MAP_UNI_RSVD;
- if (!mapchar)
- goto cp_convert;
+ return map_type;
+}
+/* Convert character using the SFU - "Services for Unix" remapping range */
+static bool
+convert_sfu_char(const __u16 src_char, char *target)
+{
/*
* BB: Cannot handle remapping UNI_SLASH until all the calls to
* build_path_from_dentry are modified, as they use slash as
@@ -106,19 +105,74 @@ cifs_mapchar(char *target, const __u16 src_char, const struct nls_table *cp,
*target = '<';
break;
default:
- goto cp_convert;
+ return false;
}
+ return true;
+}
+
+/* Convert character using the SFM - "Services for Mac" remapping range */
+static bool
+convert_sfm_char(const __u16 src_char, char *target)
+{
+ switch (src_char) {
+ case SFM_COLON:
+ *target = ':';
+ break;
+ case SFM_ASTERISK:
+ *target = '*';
+ break;
+ case SFM_QUESTION:
+ *target = '?';
+ break;
+ case SFM_PIPE:
+ *target = '|';
+ break;
+ case SFM_GRTRTHAN:
+ *target = '>';
+ break;
+ case SFM_LESSTHAN:
+ *target = '<';
+ break;
+ case SFM_SLASH:
+ *target = '\\';
+ break;
+ default:
+ return false;
+ }
+ return true;
+}
-out:
- return len;
-cp_convert:
+/*
+ * cifs_mapchar - convert a host-endian char to proper char in codepage
+ * @target - where converted character should be copied
+ * @src_char - 2 byte host-endian source character
+ * @cp - codepage to which character should be converted
+ * @map_type - How should the 7 NTFS/SMB reserved characters be mapped to UCS2?
+ *
+ * This function handles the conversion of a single character. It is the
+ * responsibility of the caller to ensure that the target buffer is large
+ * enough to hold the result of the conversion (at least NLS_MAX_CHARSET_SIZE).
+ */
+static int
+cifs_mapchar(char *target, const __u16 src_char, const struct nls_table *cp,
+ int maptype)
+{
+ int len = 1;
+
+ if ((maptype == SFM_MAP_UNI_RSVD) && convert_sfm_char(src_char, target))
+ return len;
+ else if ((maptype == SFU_MAP_UNI_RSVD) &&
+ convert_sfu_char(src_char, target))
+ return len;
+
+ /* if character not one of seven in special remap set */
len = cp->uni2char(src_char, target, NLS_MAX_CHARSET_SIZE);
if (len <= 0) {
*target = '?';
len = 1;
}
- goto out;
+ return len;
}
/*
@@ -145,7 +199,7 @@ cp_convert:
*/
int
cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
- const struct nls_table *codepage, bool mapchar)
+ const struct nls_table *codepage, int map_type)
{
int i, charlen, safelen;
int outlen = 0;
@@ -172,13 +226,13 @@ cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
* conversion bleed into the null terminator
*/
if (outlen >= safelen) {
- charlen = cifs_mapchar(tmp, ftmp, codepage, mapchar);
+ charlen = cifs_mapchar(tmp, ftmp, codepage, map_type);
if ((outlen + charlen) > (tolen - nullsize))
break;
}
/* put converted char into 'to' buffer */
- charlen = cifs_mapchar(&to[outlen], ftmp, codepage, mapchar);
+ charlen = cifs_mapchar(&to[outlen], ftmp, codepage, map_type);
outlen += charlen;
}
@@ -267,7 +321,7 @@ cifs_strndup_from_utf16(const char *src, const int maxlen,
if (!dst)
return NULL;
cifs_from_utf16(dst, (__le16 *) src, len, maxlen, codepage,
- false);
+ NO_MAP_UNI_RSVD);
} else {
len = strnlen(src, maxlen);
len++;
@@ -280,6 +334,66 @@ cifs_strndup_from_utf16(const char *src, const int maxlen,
return dst;
}
+static __le16 convert_to_sfu_char(char src_char)
+{
+ __le16 dest_char;
+
+ switch (src_char) {
+ case ':':
+ dest_char = cpu_to_le16(UNI_COLON);
+ break;
+ case '*':
+ dest_char = cpu_to_le16(UNI_ASTERISK);
+ break;
+ case '?':
+ dest_char = cpu_to_le16(UNI_QUESTION);
+ break;
+ case '<':
+ dest_char = cpu_to_le16(UNI_LESSTHAN);
+ break;
+ case '>':
+ dest_char = cpu_to_le16(UNI_GRTRTHAN);
+ break;
+ case '|':
+ dest_char = cpu_to_le16(UNI_PIPE);
+ break;
+ default:
+ dest_char = 0;
+ }
+
+ return dest_char;
+}
+
+static __le16 convert_to_sfm_char(char src_char)
+{
+ __le16 dest_char;
+
+ switch (src_char) {
+ case ':':
+ dest_char = cpu_to_le16(SFM_COLON);
+ break;
+ case '*':
+ dest_char = cpu_to_le16(SFM_ASTERISK);
+ break;
+ case '?':
+ dest_char = cpu_to_le16(SFM_QUESTION);
+ break;
+ case '<':
+ dest_char = cpu_to_le16(SFM_LESSTHAN);
+ break;
+ case '>':
+ dest_char = cpu_to_le16(SFM_GRTRTHAN);
+ break;
+ case '|':
+ dest_char = cpu_to_le16(SFM_PIPE);
+ break;
+ default:
+ dest_char = 0;
+ }
+
+ return dest_char;
+}
+
/*
* Convert 16 bit Unicode pathname to wire format from string in current code
* page. Conversion may involve remapping up the six characters that are
@@ -288,7 +402,7 @@ cifs_strndup_from_utf16(const char *src, const int maxlen,
*/
int
cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
- const struct nls_table *cp, int mapChars)
+ const struct nls_table *cp, int map_chars)
{
int i, charlen;
int j = 0;
@@ -296,39 +410,30 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
__le16 dst_char;
wchar_t tmp;
- if (!mapChars)
+ if (map_chars == NO_MAP_UNI_RSVD)
return cifs_strtoUTF16(target, source, PATH_MAX, cp);
for (i = 0; i < srclen; j++) {
src_char = source[i];
charlen = 1;
- switch (src_char) {
- case 0:
+
+ /* check if end of string */
+ if (src_char == 0)
goto ctoUTF16_out;
- case ':':
- dst_char = cpu_to_le16(UNI_COLON);
- break;
- case '*':
- dst_char = cpu_to_le16(UNI_ASTERISK);
- break;
- case '?':
- dst_char = cpu_to_le16(UNI_QUESTION);
- break;
- case '<':
- dst_char = cpu_to_le16(UNI_LESSTHAN);
- break;
- case '>':
- dst_char = cpu_to_le16(UNI_GRTRTHAN);
- break;
- case '|':
- dst_char = cpu_to_le16(UNI_PIPE);
- break;
+
+ /* see if we must remap this char */
+ if (map_chars == SFU_MAP_UNI_RSVD)
+ dst_char = convert_to_sfu_char(src_char);
+ else if (map_chars == SFM_MAP_UNI_RSVD)
+ dst_char = convert_to_sfm_char(src_char);
+ else
+ dst_char = 0;
/*
* FIXME: We can not handle remapping backslash (UNI_SLASH)
* until all the calls to build_path_from_dentry are modified,
* as they use backslash as separator.
*/
- default:
+ if (dst_char == 0) {
charlen = cp->char2uni(source + i, srclen - i, &tmp);
dst_char = cpu_to_le16(tmp);
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index d8eac3b6cefb..bdc52cb9a676 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -52,6 +52,34 @@
#define UNI_PIPE (__u16) ('|' + 0xF000)
#define UNI_SLASH (__u16) ('\\' + 0xF000)
+/*
+ * Macs use an older "SFM" mapping of the symbols above. Fortunately it does
+ * not conflict (although almost does) with the mapping above.
+ */
+
+#define SFM_ASTERISK ((__u16) 0xF021)
+#define SFM_QUESTION ((__u16) 0xF025)
+#define SFM_COLON ((__u16) 0xF022)
+#define SFM_GRTRTHAN ((__u16) 0xF024)
+#define SFM_LESSTHAN ((__u16) 0xF023)
+#define SFM_PIPE ((__u16) 0xF027)
+#define SFM_SLASH ((__u16) 0xF026)
+
+/*
+ * Mapping mechanism to use when one of the seven reserved characters is
+ * encountered. We can only map using one of the mechanisms at a time
+ * since otherwise readdir could return directory entries which we would
+ * not be able to open
+ *
+ * NO_MAP_UNI_RSVD = do not perform any remapping of the character
+ * SFM_MAP_UNI_RSVD = map reserved characters using SFM scheme (MAC compatible)
+ * SFU_MAP_UNI_RSVD = map reserved characters ala SFU ("mapchars" option)
+ *
+ */
+#define NO_MAP_UNI_RSVD 0
+#define SFM_MAP_UNI_RSVD 1
+#define SFU_MAP_UNI_RSVD 2
+
/* Just define what we want from uniupr.h. We don't want to define the tables
* in each source file.
*/
@@ -75,7 +103,7 @@ extern const struct UniCaseRange CifsUniLowerRange[];
#ifdef __KERNEL__
int cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
- const struct nls_table *codepage, bool mapchar);
+ const struct nls_table *cp, int map_type);
int cifs_utf16_bytes(const __le16 *from, int maxbytes,
const struct nls_table *codepage);
int cifs_strtoUTF16(__le16 *, const char *, int, const struct nls_table *);
@@ -84,6 +112,7 @@ char *cifs_strndup_from_utf16(const char *src, const int maxlen,
const struct nls_table *codepage);
extern int cifsConvertToUTF16(__le16 *target, const char *source, int maxlen,
const struct nls_table *cp, int mapChars);
+extern int cifs_remap(struct cifs_sb_info *cifs_sb);
#ifdef CONFIG_CIFS_SMB2
extern __le16 *cifs_strndup_to_utf16(const char *src, const int maxlen,
int *utf16_len, const struct nls_table *cp,
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 4934347321d3..4ac7445e6ec7 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -431,7 +431,7 @@ find_domain_name(struct cifs_ses *ses, const struct nls_table *nls_cp)
return -ENOMEM;
cifs_from_utf16(ses->domainName,
(__le16 *)blobptr, attrsize, attrsize,
- nls_cp, false);
+ nls_cp, NO_MAP_UNI_RSVD);
break;
}
}
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 25b8392bfdd2..02a33e529904 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -323,11 +323,11 @@ struct smb_version_operations {
int (*async_writev)(struct cifs_writedata *,
void (*release)(struct kref *));
/* sync read from the server */
- int (*sync_read)(const unsigned int, struct cifsFileInfo *,
+ int (*sync_read)(const unsigned int, struct cifs_fid *,
struct cifs_io_parms *, unsigned int *, char **,
int *);
/* sync write to the server */
- int (*sync_write)(const unsigned int, struct cifsFileInfo *,
+ int (*sync_write)(const unsigned int, struct cifs_fid *,
struct cifs_io_parms *, unsigned int *, struct kvec *,
unsigned long);
/* open dir, start readdir */
@@ -466,6 +466,7 @@ struct smb_vol {
bool direct_io:1;
bool strict_io:1; /* strict cache behavior */
bool remap:1; /* set to remap seven reserved chars in filenames */
+ bool sfu_remap:1; /* remap seven reserved chars ala SFU */
bool posix_paths:1; /* unset to not ask for posix pathnames. */
bool no_linux_ext:1;
bool sfu_emul:1;
@@ -499,6 +500,7 @@ struct smb_vol {
#define CIFS_MOUNT_MASK (CIFS_MOUNT_NO_PERM | CIFS_MOUNT_SET_UID | \
CIFS_MOUNT_SERVER_INUM | CIFS_MOUNT_DIRECT_IO | \
CIFS_MOUNT_NO_XATTR | CIFS_MOUNT_MAP_SPECIAL_CHR | \
+ CIFS_MOUNT_MAP_SFM_CHR | \
CIFS_MOUNT_UNX_EMUL | CIFS_MOUNT_NO_BRL | \
CIFS_MOUNT_CIFS_ACL | CIFS_MOUNT_OVERR_UID | \
CIFS_MOUNT_OVERR_GID | CIFS_MOUNT_DYNPERM | \
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 66f65001a6d8..61d00a6e398f 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -867,7 +867,7 @@ CIFSSMBDelFile(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
int rc = 0;
int bytes_returned;
int name_len;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
DelFileRetry:
rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB,
@@ -913,7 +913,7 @@ CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
int rc = 0;
int bytes_returned;
int name_len;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
cifs_dbg(FYI, "In CIFSSMBRmDir\n");
RmDirRetry:
@@ -958,7 +958,7 @@ CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
CREATE_DIRECTORY_RSP *pSMBr = NULL;
int bytes_returned;
int name_len;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
cifs_dbg(FYI, "In CIFSSMBMkDir\n");
MkDirRetry:
@@ -1280,7 +1280,7 @@ CIFS_open(const unsigned int xid, struct cifs_open_parms *oparms, int *oplock,
__u16 count;
struct cifs_sb_info *cifs_sb = oparms->cifs_sb;
struct cifs_tcon *tcon = oparms->tcon;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
const struct nls_table *nls = cifs_sb->local_nls;
int create_options = oparms->create_options;
int desired_access = oparms->desired_access;
@@ -2572,7 +2572,7 @@ CIFSSMBRename(const unsigned int xid, struct cifs_tcon *tcon,
int bytes_returned;
int name_len, name_len2;
__u16 count;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
cifs_dbg(FYI, "In CIFSSMBRename\n");
renameRetry:
@@ -2968,7 +2968,7 @@ CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon,
int bytes_returned;
int name_len, name_len2;
__u16 count;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
cifs_dbg(FYI, "In CIFSCreateHardLink\n");
winCreateHardLinkRetry:
@@ -4367,7 +4367,7 @@ findFirstRetry:
return rc;
nls_codepage = cifs_sb->local_nls;
- remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ remap = cifs_remap(cifs_sb);
if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) {
name_len =
@@ -5527,7 +5527,7 @@ CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon,
int name_len;
int rc = 0;
int bytes_returned = 0;
- int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR;
+ int remap = cifs_remap(cifs_sb);
__u16 params, byte_count, data_count, param_offset, offset;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 239e1fb33000..24fa08d261fb 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -70,6 +70,7 @@ enum {
Opt_forcegid, Opt_noforcegid,
Opt_noblocksend, Opt_noautotune,
Opt_hard, Opt_soft, Opt_perm, Opt_noperm,
+ Opt_mapposix, Opt_nomapposix,
Opt_mapchars, Opt_nomapchars, Opt_sfu,
Opt_nosfu, Opt_nodfs, Opt_posixpaths,
Opt_noposixpaths, Opt_nounix,
@@ -124,8 +125,10 @@ static const match_table_t cifs_mount_option_tokens = {
{ Opt_soft, "soft" },
{ Opt_perm, "perm" },
{ Opt_noperm, "noperm" },
- { Opt_mapchars, "mapchars" },
+ { Opt_mapchars, "mapchars" }, /* SFU style */
{ Opt_nomapchars, "nomapchars" },
+ { Opt_mapposix, "mapposix" }, /* SFM style */
+ { Opt_nomapposix, "nomapposix" },
{ Opt_sfu, "sfu" },
{ Opt_nosfu, "nosfu" },
{ Opt_nodfs, "nodfs" },
@@ -1231,6 +1234,14 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
vol->linux_uid = current_uid();
vol->linux_gid = current_gid();
+ /*
+ * default to SFM style remapping of seven reserved characters
+ * unless user overrides it or we negotiate CIFS POSIX where
+ * it is unnecessary. Can not simultaneously use more than one mapping
+ * since then readdir could list files that open could not open
+ */
+ vol->remap = true;
+
/* default to only allowing write access to owner of the mount */
vol->dir_mode = vol->file_mode = S_IRUGO | S_IXUGO | S_IWUSR;
@@ -1338,10 +1349,18 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
vol->noperm = 1;
break;
case Opt_mapchars:
- vol->remap = 1;
+ vol->sfu_remap = true;
+ vol->remap = false; /* disable SFM mapping */
break;
case Opt_nomapchars:
- vol->remap = 0;
+ vol->sfu_remap = false;
+ break;
+ case Opt_mapposix:
+ vol->remap = true;
+ vol->sfu_remap = false; /* disable SFU mapping */
+ break;
+ case Opt_nomapposix:
+ vol->remap = false;
break;
case Opt_sfu:
vol->sfu_emul = 1;
@@ -3197,6 +3216,8 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
if (pvolume_info->server_ino)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM;
if (pvolume_info->remap)
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SFM_CHR;
+ if (pvolume_info->sfu_remap)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR;
if (pvolume_info->no_xattr)
cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
@@ -3239,10 +3260,20 @@ void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
}
if (pvolume_info->mfsymlinks) {
if (pvolume_info->sfu_emul) {
- cifs_dbg(VFS, "mount option mfsymlinks ignored if sfu mount option is used\n");
- } else {
- cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MF_SYMLINKS;
+ /*
+ * Our SFU ("Services for Unix" emulation does not allow
+ * creating symlinks but does allow reading existing SFU
+ * symlinks (it does allow both creating and reading SFU
+ * style mknod and FIFOs though). When "mfsymlinks" and
+ * "sfu" are both enabled at the same time, it allows
+ * reading both types of symlinks, but will only create
+ * them with mfsymlinks format. This allows better
+ * Apple compatibility (probably better for Samba too)
+ * while still recognizing old Windows style symlinks.
+ */
+ cifs_dbg(VFS, "mount options mfsymlinks and sfu both enabled\n");
}
+ cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MF_SYMLINKS;
}
if ((pvolume_info->cifs_acl) && (pvolume_info->dynperm))
@@ -3330,8 +3361,7 @@ expand_dfs_referral(const unsigned int xid, struct cifs_ses *ses,
ref_path = check_prefix ? full_path + 1 : volume_info->UNC + 1;
rc = get_dfs_path(xid, ses, ref_path, cifs_sb->local_nls,
- &num_referrals, &referrals,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ &num_referrals, &referrals, cifs_remap(cifs_sb));
if (!rc && num_referrals > 0) {
char *fake_devname = NULL;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 073640675a39..b72bc29cba23 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -577,12 +577,13 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, umode_t mode,
struct cifs_io_parms io_parms;
char *full_path = NULL;
struct inode *newinode = NULL;
- int oplock = 0;
+ __u32 oplock = 0;
struct cifs_fid fid;
struct cifs_open_parms oparms;
FILE_ALL_INFO *buf = NULL;
unsigned int bytes_written;
struct win_dev *pdev;
+ struct kvec iov[2];
if (!old_valid_dev(device_number))
return -EINVAL;
@@ -658,7 +659,11 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, umode_t mode,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = CIFS_open(xid, &oparms, &oplock, buf);
+ if (tcon->ses->server->oplocks)
+ oplock = REQ_OPLOCK;
+ else
+ oplock = 0;
+ rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, buf);
if (rc)
goto mknod_out;
@@ -668,25 +673,26 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, umode_t mode,
*/
pdev = (struct win_dev *)buf;
- io_parms.netfid = fid.netfid;
io_parms.pid = current->tgid;
io_parms.tcon = tcon;
io_parms.offset = 0;
io_parms.length = sizeof(struct win_dev);
+ iov[1].iov_base = buf;
+ iov[1].iov_len = sizeof(struct win_dev);
if (S_ISCHR(mode)) {
memcpy(pdev->type, "IntxCHR", 8);
pdev->major = cpu_to_le64(MAJOR(device_number));
pdev->minor = cpu_to_le64(MINOR(device_number));
- rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, (char *)pdev,
- NULL, 0);
+ rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
+ &bytes_written, iov, 1);
} else if (S_ISBLK(mode)) {
memcpy(pdev->type, "IntxBLK", 8);
pdev->major = cpu_to_le64(MAJOR(device_number));
pdev->minor = cpu_to_le64(MINOR(device_number));
- rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, (char *)pdev,
- NULL, 0);
+ rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
+ &bytes_written, iov, 1);
} /* else if (S_ISFIFO) */
- CIFSSMBClose(xid, tcon, fid.netfid);
+ tcon->ses->server->ops->close(xid, tcon, &fid);
d_drop(direntry);
/* FIXME: add code here to set EAs */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 8f7b40fd8f3b..3e4d00a06c44 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1687,8 +1687,8 @@ cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
io_parms.tcon = tcon;
io_parms.offset = *offset;
io_parms.length = len;
- rc = server->ops->sync_write(xid, open_file, &io_parms,
- &bytes_written, iov, 1);
+ rc = server->ops->sync_write(xid, &open_file->fid,
+ &io_parms, &bytes_written, iov, 1);
}
if (rc || (bytes_written == 0)) {
if (total_written)
@@ -3206,7 +3206,7 @@ cifs_read(struct file *file, char *read_data, size_t read_size, loff_t *offset)
io_parms.tcon = tcon;
io_parms.offset = *offset;
io_parms.length = current_read_size;
- rc = server->ops->sync_read(xid, open_file, &io_parms,
+ rc = server->ops->sync_read(xid, &open_file->fid, &io_parms,
&bytes_read, &cur_offset,
&buf_type);
} while (rc == -EAGAIN);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 8fd4ee8e07ff..197cb503d528 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -30,6 +30,7 @@
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
+#include "cifs_unicode.h"
#include "fscache.h"
@@ -412,7 +413,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
struct cifs_sb_info *cifs_sb, unsigned int xid)
{
int rc;
- int oplock = 0;
+ __u32 oplock;
struct tcon_link *tlink;
struct cifs_tcon *tcon;
struct cifs_fid fid;
@@ -451,8 +452,13 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = CIFS_open(xid, &oparms, &oplock, NULL);
+ if (tcon->ses->server->oplocks)
+ oplock = REQ_OPLOCK;
+ else
+ oplock = 0;
+ rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, NULL);
if (rc) {
+ cifs_dbg(FYI, "check sfu type of %s, open rc = %d\n", path, rc);
cifs_put_tlink(tlink);
return rc;
}
@@ -464,7 +470,8 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
io_parms.offset = 0;
io_parms.length = 24;
- rc = CIFSSMBRead(xid, &io_parms, &bytes_read, &pbuf, &buf_type);
+ rc = tcon->ses->server->ops->sync_read(xid, &fid, &io_parms,
+ &bytes_read, &pbuf, &buf_type);
if ((rc == 0) && (bytes_read >= 8)) {
if (memcmp("IntxBLK", pbuf, 8) == 0) {
cifs_dbg(FYI, "Block device\n");
@@ -504,7 +511,8 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
fattr->cf_dtype = DT_REG;
rc = -EOPNOTSUPP; /* or some unknown SFU type */
}
- CIFSSMBClose(xid, tcon, fid.netfid);
+
+ tcon->ses->server->ops->close(xid, tcon, &fid);
cifs_put_tlink(tlink);
return rc;
}
@@ -539,7 +547,7 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
rc = tcon->ses->server->ops->query_all_EAs(xid, tcon, path,
"SETFILEBITS", ea_value, 4 /* size of buf */,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
cifs_put_tlink(tlink);
if (rc < 0)
return (int)rc;
@@ -952,11 +960,18 @@ struct inode *cifs_root_iget(struct super_block *sb)
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
xid = get_xid();
- if (tcon->unix_ext)
+ if (tcon->unix_ext) {
rc = cifs_get_inode_info_unix(&inode, "", sb, xid);
- else
- rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL);
+ /* some servers mistakenly claim POSIX support */
+ if (rc != -EOPNOTSUPP)
+ goto iget_no_retry;
+ cifs_dbg(VFS, "server does not support POSIX extensions");
+ tcon->unix_ext = false;
+ }
+
+ rc = cifs_get_inode_info(&inode, "", NULL, sb, xid, NULL);
+iget_no_retry:
if (!inode) {
inode = ERR_PTR(rc);
goto out;
@@ -1117,8 +1132,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry,
/* rename the file */
rc = CIFSSMBRenameOpenFile(xid, tcon, fid.netfid, NULL,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
if (rc != 0) {
rc = -EBUSY;
goto undo_setattr;
@@ -1159,8 +1173,7 @@ out:
*/
undo_rename:
CIFSSMBRenameOpenFile(xid, tcon, fid.netfid, dentry->d_name.name,
- cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_sb->local_nls, cifs_remap(cifs_sb));
undo_setattr:
if (dosattr != origattr) {
info_buf->Attributes = cpu_to_le32(origattr);
@@ -1226,7 +1239,7 @@ int cifs_unlink(struct inode *dir, struct dentry *dentry)
le64_to_cpu(tcon->fsUnixInfo.Capability))) {
rc = CIFSPOSIXDelFile(xid, tcon, full_path,
SMB_POSIX_UNLINK_FILE_TARGET, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
cifs_dbg(FYI, "posix del rc %d\n", rc);
if ((rc == 0) || (rc == -ENOENT))
goto psx_del_no_retry;
@@ -1349,8 +1362,7 @@ cifs_mkdir_qinfo(struct inode *parent, struct dentry *dentry, umode_t mode,
}
CIFSSMBUnixSetPathInfo(xid, tcon, full_path, &args,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
} else {
struct TCP_Server_Info *server = tcon->ses->server;
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
@@ -1392,8 +1404,7 @@ cifs_posix_mkdir(struct inode *inode, struct dentry *dentry, umode_t mode,
mode &= ~current_umask();
rc = CIFSPOSIXCreate(xid, tcon, SMB_O_DIRECTORY | SMB_O_CREAT, mode,
NULL /* netfid */, info, &oplock, full_path,
- cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_sb->local_nls, cifs_remap(cifs_sb));
if (rc == -EOPNOTSUPP)
goto posix_mkdir_out;
else if (rc) {
@@ -1617,8 +1628,7 @@ cifs_do_rename(const unsigned int xid, struct dentry *from_dentry,
if (rc == 0) {
rc = CIFSSMBRenameOpenFile(xid, tcon, fid.netfid,
(const char *) to_dentry->d_name.name,
- cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_sb->local_nls, cifs_remap(cifs_sb));
CIFSSMBClose(xid, tcon, fid.netfid);
}
do_rename_exit:
@@ -1694,16 +1704,14 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
tmprc = CIFSSMBUnixQPathInfo(xid, tcon, from_name,
info_buf_source,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
if (tmprc != 0)
goto unlink_target;
tmprc = CIFSSMBUnixQPathInfo(xid, tcon, to_name,
info_buf_target,
cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
if (tmprc == 0 && (info_buf_source->UniqueId ==
info_buf_target->UniqueId)) {
@@ -2068,8 +2076,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
rc = SMBLegacyOpen(xid, tcon, full_path, FILE_OPEN,
GENERIC_WRITE, CREATE_NOT_DIR, &netfid,
&oplock, NULL, cifs_sb->local_nls,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
+ cifs_remap(cifs_sb));
if (rc == 0) {
unsigned int bytes_written;
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 5657416d3483..2ec6037f61c7 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -28,6 +28,10 @@
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifs_fs_sb.h"
+#include "cifs_unicode.h"
+#ifdef CONFIG_CIFS_SMB2
+#include "smb2proto.h"
+#endif
/*
* M-F Symlink Functions - Begin
@@ -401,6 +405,134 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
}
/*
+ * SMB 2.1/SMB3 Protocol specific functions
+ */
+#ifdef CONFIG_CIFS_SMB2
+int
+smb3_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, const unsigned char *path,
+ char *pbuf, unsigned int *pbytes_read)
+{
+ int rc;
+ struct cifs_fid fid;
+ struct cifs_open_parms oparms;
+ struct cifs_io_parms io_parms;
+ int buf_type = CIFS_NO_BUFFER;
+ __le16 *utf16_path;
+ __u8 oplock = SMB2_OPLOCK_LEVEL_II;
+ struct smb2_file_all_info *pfile_info = NULL;
+
+ oparms.tcon = tcon;
+ oparms.cifs_sb = cifs_sb;
+ oparms.desired_access = GENERIC_READ;
+ oparms.create_options = CREATE_NOT_DIR;
+ if (backup_cred(cifs_sb))
+ oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
+ oparms.disposition = FILE_OPEN;
+ oparms.fid = &fid;
+ oparms.reconnect = false;
+
+ utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
+ if (utf16_path == NULL)
+ return -ENOMEM;
+
+ pfile_info