diff options
author | 2014-10-18 13:39:19 -0700 | |
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committer | 2014-10-18 13:39:19 -0700 | |
commit | 9272f2dc3956c6b6c4335de51bc897fa3b981584 (patch) | |
tree | 0fed79884531f07bbc3abeca876d3a8b60f653b3 /fs | |
parent | Merge tag 'dlm-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/teiglan... (diff) | |
parent | [CIFS] Remove obsolete comment (diff) | |
download | linux-9272f2dc3956c6b6c4335de51bc897fa3b981584.tar.gz linux-9272f2dc3956c6b6c4335de51bc897fa3b981584.tar.bz2 linux-9272f2dc3956c6b6c4335de51bc897fa3b981584.zip |
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs/smb3 updates from Steve French:
"Improved SMB3 support (symlink and device emulation, and remapping by
default the 7 reserved posix characters) and a workaround for cifs
mounts to Mac (working around a commonly encountered Mac server bug)"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
[CIFS] Remove obsolete comment
Check minimum response length on query_network_interface
Workaround Mac server problem
Remap reserved posix characters by default (part 3/3)
Allow conversion of characters in Mac remap range (part 2)
Allow conversion of characters in Mac remap range. Part 1
mfsymlinks support for SMB2.1/SMB3. Part 2 query symlink
Add mfsymlinks support for SMB2.1/SMB3. Part 1 create symlink
Allow mknod and mkfifo on SMB2/SMB3 mounts
add defines for two new file attributes
Diffstat (limited to 'fs')
-rw-r--r-- | fs/cifs/cifs_fs_sb.h | 1 | ||||
-rw-r--r-- | fs/cifs/cifs_unicode.c | 203 | ||||
-rw-r--r-- | fs/cifs/cifs_unicode.h | 31 | ||||
-rw-r--r-- | fs/cifs/cifsencrypt.c | 2 | ||||
-rw-r--r-- | fs/cifs/cifsglob.h | 6 | ||||
-rw-r--r-- | fs/cifs/cifssmb.c | 16 | ||||
-rw-r--r-- | fs/cifs/connect.c | 46 | ||||
-rw-r--r-- | fs/cifs/dir.c | 22 | ||||
-rw-r--r-- | fs/cifs/file.c | 6 | ||||
-rw-r--r-- | fs/cifs/inode.c | 57 | ||||
-rw-r--r-- | fs/cifs/link.c | 145 | ||||
-rw-r--r-- | fs/cifs/readdir.c | 8 | ||||
-rw-r--r-- | fs/cifs/smb1ops.c | 33 | ||||
-rw-r--r-- | fs/cifs/smb2misc.c | 12 | ||||
-rw-r--r-- | fs/cifs/smb2ops.c | 27 | ||||
-rw-r--r-- | fs/cifs/smb2pdu.c | 2 | ||||
-rw-r--r-- | fs/cifs/smb2pdu.h | 2 | ||||
-rw-r--r-- | fs/cifs/smb2proto.h | 8 | ||||
-rw-r--r-- | fs/cifs/smbencrypt.c | 1 | ||||
-rw-r--r-- | fs/cifs/xattr.c | 32 |
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 = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, + GFP_KERNEL); + + if (pfile_info == NULL) { + kfree(utf16_path); + return -ENOMEM; + } + + rc = SMB2_open(xid, &oparms, utf16_path, &oplock, pfile_info, NULL); + if (rc) + goto qmf_out_open_fail; + + if (pfile_info->EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) { + /* it's not a symlink */ + rc = -ENOENT; /* Is there a better rc to return? */ + goto qmf_out; + } + + io_parms.netfid = fid.netfid; + io_parms.pid = current->tgid; + io_parms.tcon = tcon; + io_parms.offset = 0; + io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE; + io_parms.persistent_fid = fid.persistent_fid; + io_parms.volatile_fid = fid.volatile_fid; + rc = SMB2_read(xid, &io_parms, pbytes_read, &pbuf, &buf_type); +qmf_out: + SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); +qmf_out_open_fail: + kfree(utf16_path); + kfree(pfile_info); + return rc; +} + +int +smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, + struct cifs_sb_info *cifs_sb, const unsigned char *path, + char *pbuf, unsigned int *pbytes_written) +{ + int rc; + struct cifs_fid fid; + struct cifs_open_parms oparms; + struct cifs_io_parms io_parms; + int create_options = CREATE_NOT_DIR; + __le16 *utf16_path; + __u8 oplock = SMB2_OPLOCK_LEVEL_EXCLUSIVE; + struct kvec iov[2]; + + if (backup_cred(cifs_sb)) + create_options |= CREATE_OPEN_BACKUP_INTENT; + + cifs_dbg(FYI, "%s: path: %s\n", __func__, path); + + utf16_path = cifs_convert_path_to_utf16(path, cifs_sb); + if (!utf16_path) + return -ENOMEM; + + oparms.tcon = tcon; + oparms.cifs_sb = cifs_sb; + oparms.desired_access = GENERIC_WRITE; + oparms.create_options = create_options; + oparms.disposition = FILE_CREATE; + oparms.fid = &fid; + oparms.reconnect = false; + + rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); + if (rc) { + kfree(utf16_path); + return rc; + } + + io_parms.netfid = fid.netfid; + io_parms.pid = current->tgid; + io_parms.tcon = tcon; + io_parms.offset = 0; + io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE; + io_parms.persistent_fid = fid.persistent_fid; + io_parms.volatile_fid = fid.volatile_fid; + + /* iov[0] is reserved for smb header */ + iov[1].iov_base = pbuf; + iov[1].iov_len = CIFS_MF_SYMLINK_FILE_SIZE; + + rc = SMB2_write(xid, &io_parms, pbytes_written, iov, 1); + + /* Make sure we wrote all of the symlink data */ + if ((rc == 0) && (*pbytes_written != CIFS_MF_SYMLINK_FILE_SIZE)) + rc = -EIO; + + SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); + + kfree(utf16_path); + return rc; +} +#endif /* CONFIG_CIFS_SMB2 */ + +/* * M-F Symlink Functions - End */ @@ -435,8 +567,7 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, if (tcon->unix_ext) rc = CIFSUnixCreateHardLink(xid, tcon, from_name, to_name, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); else { server = tcon->ses->server; if (!server->ops->create_hardlink) { @@ -461,11 +592,7 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, spin_lock(&old_file->d_inode->i_lock); inc_nlink(old_file->d_inode); spin_unlock(&old_file->d_inode->i_lock); - /* - * BB should we make this contingent on superblock flag - * NOATIME? - */ - /* old_file->d_inode->i_ctime = CURRENT_TIME; */ + /* * parent dir timestamps will update from srv within a * second, would it really be worth it to set the parent @@ -475,7 +602,9 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, } /* * if not oplocked will force revalidate to get info on source - * file from srv + * file from srv. Note Samba server prior to 4.2 has bug - + * not updating src file ctime on hardlinks but Windows servers + * handle it properly */ cifsInode->time = 0; diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index d2141f101382..8fd2a95860ba 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -239,7 +239,7 @@ int get_symlink_reparse_path(char *full_path, struct cifs_sb_info *cifs_sb, rc = CIFSSMBOpen(xid, ptcon, full_path, FILE_OPEN, GENERIC_READ, OPEN_REPARSE_POINT, &fid, &oplock, NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb); if (!rc) { tmpbuffer = kmalloc(maxpath); rc = CIFSSMBQueryReparseLinkInfo(xid, ptcon, full_path, @@ -704,15 +704,15 @@ static int cifs_filldir(char *find_entry, struct file *file, if (file_info->srch_inf.unicode) { struct nls_table *nlt = cifs_sb->local_nls; + int map_type; + map_type = cifs_remap(cifs_sb); name.name = scratch_buf; name.len = cifs_from_utf16((char *)name.name, (__le16 *)de.name, UNICODE_NAME_MAX, min_t(size_t, de.namelen, - (size_t)max_len), nlt, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + (size_t)max_len), nlt, map_type); name.len -= nls_nullsize(nlt); } else { name.name = de.name; diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c index 52131d8cb4d5..d2979036a4c7 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -23,6 +23,7 @@ #include "cifsproto.h" #include "cifs_debug.h" #include "cifspdu.h" +#include "cifs_unicode.h" /* * An NT cancel request header looks just like the original request except: @@ -530,13 +531,11 @@ cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon, rc = CIFSSMBQPathInfo(xid, tcon, full_path, file_info, 0 /* not legacy */, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); if (rc == -EOPNOTSUPP || rc == -EINVAL) rc = SMBQueryInformation(xid, tcon, full_path, file_info, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); kfree(file_info); return rc; } @@ -552,8 +551,7 @@ cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, /* could do find first instead but this returns more info */ rc = CIFSSMBQPathInfo(xid, tcon, full_path, data, 0 /* not legacy */, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); /* * BB optimize code so we do not make the above call when server claims * no NT SMB support and the above call failed at least once - set flag @@ -562,8 +560,7 @@ cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) { rc = SMBQueryInformation(xid, tcon, full_path, data, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); *adjustTZ = true; } @@ -611,8 +608,7 @@ cifs_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon, */ return CIFSGetSrvInodeNumber(xid, tcon, full_path, uniqueid, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); } static int @@ -703,8 +699,7 @@ cifs_mkdir_setinfo(struct inode *inode, const char *full_path, dosattrs = cifsInode->cifsAttrs|ATTR_READONLY; info.Attributes = cpu_to_le32(dosattrs); rc = CIFSSMBSetPathInfo(xid, tcon, full_path, &info, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); if (rc == 0) cifsInode->cifsAttrs = dosattrs; } @@ -720,8 +715,7 @@ cifs_open_file(const unsigned int xid, struct cifs_open_parms *oparms, oparms->create_options, &oparms->fid->netfid, oplock, buf, oparms->cifs_sb->local_nls, - oparms->cifs_sb->mnt_cifs_flags - & CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(oparms->cifs_sb)); return CIFS_open(xid, oparms, oplock, buf); } @@ -749,21 +743,21 @@ cifs_flush_file(const unsigned int xid, struct cifs_tcon *tcon, } static int -cifs_sync_read(const unsigned int xid, struct cifsFileInfo *cfile, +cifs_sync_read(const unsigned int xid, struct cifs_fid *pfid, struct cifs_io_parms *parms, unsigned int *bytes_read, char **buf, int *buf_type) { - parms->netfid = cfile->fid.netfid; + parms->netfid = pfid->netfid; return CIFSSMBRead(xid, parms, bytes_read, buf, buf_type); } static int -cifs_sync_write(const unsigned int xid, struct cifsFileInfo *cfile, +cifs_sync_write(const unsigned int xid, struct cifs_fid *pfid, struct cifs_io_parms *parms, unsigned int *written, struct kvec *iov, unsigned long nr_segs) { - parms->netfid = cfile->fid.netfid; + parms->netfid = pfid->netfid; return CIFSSMBWrite2(xid, parms, written, iov, nr_segs); } @@ -800,8 +794,7 @@ smb_set_file_info(struct inode *inode, const char *full_path, tcon = tlink_tcon(tlink); rc = CIFSSMBSetPathInfo(xid, tcon, full_path, buf, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); if (rc == 0) { cinode->cifsAttrs = le32_to_cpu(buf->Attributes); goto out; diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index 4aa7a0f07d6e..1a08a34838fc 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -379,6 +379,14 @@ cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb) int len; const char *start_of_path; __le16 *to; + 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; /* Windows doesn't allow paths beginning with \ */ if (from[0] == '\\') @@ -386,9 +394,7 @@ cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb) else start_of_path = from; to = cifs_strndup_to_utf16(start_of_path, PATH_MAX, &len, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, map_type); return to; } diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index f522193b7184..c5f521bcdee2 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -265,15 +265,18 @@ SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon) FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */, NULL /* no data input */, 0 /* no data input */, (char **)&out_buf, &ret_data_len); - - if ((rc == 0) && (ret_data_len > 0)) { + if (rc != 0) + cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc); + else if (ret_data_len < sizeof(struct network_interface_info_ioctl_rsp)) { + cifs_dbg(VFS, "server returned bad net interface info buf\n"); + rc = -EINVAL; + } else { /* Dump info on first interface */ cifs_dbg(FYI, "Adapter Capability 0x%x\t", le32_to_cpu(out_buf->Capability)); cifs_dbg(FYI, "Link Speed %lld\n", le64_to_cpu(out_buf->LinkSpeed)); - } else - cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc); + } return rc; } @@ -711,23 +714,23 @@ smb2_read_data_length(char *buf) static int -smb2_sync_read(const unsigned int xid, struct cifsFileInfo *cfile, +smb2_sync_read(const unsigned int xid, struct cifs_fid *pfid, struct cifs_io_parms *parms, unsigned int *bytes_read, char **buf, int *buf_type) { - parms->persistent_fid = cfile->fid.persistent_fid; - parms->volatile_fid = cfile->fid.volatile_fid; + parms->persistent_fid = pfid->persistent_fid; + parms->volatile_fid = pfid->volatile_fid; return SMB2_read(xid, parms, bytes_read, buf, buf_type); } static int -smb2_sync_write(const unsigned int xid, struct cifsFileInfo *cfile, +smb2_sync_write(const unsigned int xid, struct cifs_fid *pfid, struct cifs_io_parms *parms, unsigned int *written, struct kvec *iov, unsigned long nr_segs) { - parms->persistent_fid = cfile->fid.persistent_fid; - parms->volatile_fid = cfile->fid.volatile_fid; + parms->persistent_fid = pfid->persistent_fid; + parms->volatile_fid = pfid->volatile_fid; return SMB2_write(xid, parms, written, iov, nr_segs); } @@ -1452,6 +1455,8 @@ struct smb_version_operations smb21_operations = { .rename = smb2_rename_path, .create_hardlink = smb2_create_hardlink, .query_symlink = smb2_query_symlink, + .query_mf_symlink = smb3_query_mf_symlink, + .create_mf_symlink = smb3_create_mf_symlink, .open = smb2_open_file, .set_fid = smb2_set_fid, .close = smb2_close_file, @@ -1531,6 +1536,8 @@ struct smb_version_operations smb30_operations = { .rename = smb2_rename_path, .create_hardlink = smb2_create_hardlink, .query_symlink = smb2_query_symlink, + .query_mf_symlink = smb3_query_mf_symlink, + .create_mf_symlink = smb3_create_mf_symlink, .open = smb2_open_file, .set_fid = smb2_set_fid, .close = smb2_close_file, diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 74b3a6684383..8f1672bb82d5 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1098,6 +1098,8 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, if (oparms->create_options & CREATE_OPTION_READONLY) file_attributes |= ATTR_READONLY; + if (oparms->create_options & CREATE_OPTION_SPECIAL) + file_attributes |= ATTR_SYSTEM; req->ImpersonationLevel = IL_IMPERSONATION; req->DesiredAccess = cpu_to_le32(oparms->desired_access); diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index fbe486c285a9..e3188abdafd0 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -352,6 +352,8 @@ struct smb2_tree_disconnect_rsp { #define FILE_ATTRIBUTE_OFFLINE 0x00001000 #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000 #define FILE_ATTRIBUTE_ENCRYPTED 0x00004000 +#define FILE_ATTRIBUTE_INTEGRITY_STREAM 0x00008000 +#define FILE_ATTRIBUTE_NO_SCRUB_DATA 0x00020000 /* Oplock levels */ #define SMB2_OPLOCK_LEVEL_NONE 0x00 diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 67e8ce8055de..79dc650c18b2 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -82,7 +82,13 @@ extern int smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon, extern int smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon, const char *from_name, const char *to_name, struct cifs_sb_info *cifs_sb); - +extern int smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, + struct cifs_sb_info *cifs_sb, const unsigned char *path, + char *pbuf, unsigned int *pbytes_written); +extern 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); extern int smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms, __u32 *oplock, FILE_ALL_INFO *buf); diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c index 43eb1367b103..6c1566366a66 100644 --- a/fs/cifs/smbencrypt.c +++ b/fs/cifs/smbencrypt.c @@ -29,6 +29,7 @@ #include <linux/string.h> #include <linux/kernel.h> #include <linux/random.h> +#include "cifs_fs_sb.h" #include "cifs_unicode.h" #include "cifspdu.h" #include "cifsglob.h" diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 5ac836a86b18..72a4d10653d6 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -28,6 +28,8 @@ #include "cifsglob.h" #include "cifsproto.h" #include "cifs_debug.h" +#include "cifs_fs_sb.h" +#include "cifs_unicode.h" #define MAX_EA_VALUE_SIZE 65535 #define CIFS_XATTR_DOS_ATTRIB "user.DosAttrib" @@ -85,8 +87,7 @@ int cifs_removexattr(struct dentry *direntry, const char *ea_name) if (pTcon->ses->server->ops->set_EA) rc = pTcon->ses->server->ops->set_EA(xid, pTcon, full_path, ea_name, NULL, (__u16)0, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); } remove_ea_exit: kfree(full_path); @@ -154,8 +155,7 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, if (pTcon->ses->server->ops->set_EA) rc = pTcon->ses->server->ops->set_EA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); } else if (strncmp(ea_name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) @@ -165,8 +165,7 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, if (pTcon->ses->server->ops->set_EA) rc = pTcon->ses->server->ops->set_EA(xid, pTcon, full_path, ea_name, ea_value, (__u16)value_size, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); } else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL, strlen(CIFS_XATTR_CIFS_ACL)) == 0) { #ifdef CONFIG_CIFS_ACL @@ -199,8 +198,7 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, ea_value, (const int)value_size, ACL_TYPE_ACCESS, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); cifs_dbg(FYI, "set POSIX ACL rc %d\n", rc); #else cifs_dbg(FYI, "set POSIX ACL not supported\n"); @@ -212,8 +210,7 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, ea_value, (const int)value_size, ACL_TYPE_DEFAULT, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); cifs_dbg(FYI, "set POSIX default ACL rc %d\n", rc); #else cifs_dbg(FYI, "set default POSIX ACL not supported\n"); @@ -285,8 +282,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, if (pTcon->ses->server->ops->query_all_EAs) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon, full_path, ea_name, ea_value, buf_size, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); } else if (strncmp(ea_name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) goto get_ea_exit; @@ -295,8 +291,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, if (pTcon->ses->server->ops->query_all_EAs) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon, full_path, ea_name, ea_value, buf_size, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, strlen(POSIX_ACL_XATTR_ACCESS)) == 0) { #ifdef CONFIG_CIFS_POSIX @@ -304,8 +299,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, ea_value, buf_size, ACL_TYPE_ACCESS, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); #else cifs_dbg(FYI, "Query POSIX ACL not supported yet\n"); #endif /* CONFIG_CIFS_POSIX */ @@ -316,8 +310,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, ea_value, buf_size, ACL_TYPE_DEFAULT, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_remap(cifs_sb)); #else cifs_dbg(FYI, "Query POSIX default ACL not supported yet\n"); #endif /* CONFIG_CIFS_POSIX */ @@ -421,8 +414,7 @@ ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size) if (pTcon->ses->server->ops->query_all_EAs) rc = pTcon->ses->server->ops->query_all_EAs(xid, pTcon, full_path, NULL, data, buf_size, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + cifs_sb->local_nls, cifs_remap(cifs_sb)); list_ea_exit: kfree(full_path); free_xid(xid); |