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samba-mirror/source3/modules/vfs_fruit.c
Volker Lendecke 56e2384dfe vfs_fruit: mmap under FreeBSD needs PROT_READ 
We memmove, which does read

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Böhme <rb@sernet.de>
Reviewed-by: Jeremy Allison <jra@samba.org>
2015-01-08 23:38:06 +01:00

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/*
* OS X and Netatalk interoperability VFS module for Samba-3.x
*
* Copyright (C) Ralph Boehme, 2013, 2014
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "MacExtensions.h"
#include "smbd/smbd.h"
#include "system/filesys.h"
#include "lib/util/time.h"
#include "../lib/crypto/md5.h"
#include "system/shmem.h"
#include "locking/proto.h"
#include "smbd/globals.h"
#include "messages.h"
#include "libcli/security/security.h"
#include "../libcli/smb/smb2_create_ctx.h"
#include "lib/sys_rw.h"
/*
* Enhanced OS X and Netatalk compatibility
* ========================================
*
* This modules takes advantage of vfs_streams_xattr and
* vfs_catia. VFS modules vfs_fruit and vfs_streams_xattr must be
* loaded in the correct order:
*
* vfs modules = catia fruit streams_xattr
*
* The module intercepts the OS X special streams "AFP_AfpInfo" and
* "AFP_Resource" and handles them in a special way. All other named
* streams are deferred to vfs_streams_xattr.
*
* The OS X client maps all NTFS illegal characters to the Unicode
* private range. This module optionally stores the charcters using
* their native ASCII encoding using vfs_catia. If you're not enabling
* this feature, you can skip catia from vfs modules.
*
* Finally, open modes are optionally checked against Netatalk AFP
* share modes.
*
* The "AFP_AfpInfo" named stream is a binary blob containing OS X
* extended metadata for files and directories. This module optionally
* reads and stores this metadata in a way compatible with Netatalk 3
* which stores the metadata in an EA "org.netatalk.metadata". Cf
* source3/include/MacExtensions.h for a description of the binary
* blobs content.
*
* The "AFP_Resource" named stream may be arbitrarily large, thus it
* can't be stored in an xattr on most filesystem. ZFS on Solaris is
* the only available filesystem where xattrs can be of any size and
* the OS supports using the file APIs for xattrs.
*
* The AFP_Resource stream is stored in an AppleDouble file prepending
* "._" to the filename. On Solaris with ZFS the stream is optionally
* stored in an EA "org.netatalk.ressource".
*
*
* Extended Attributes
* ===================
*
* The OS X SMB client sends xattrs as ADS too. For xattr interop with
* other protocols you may want to adjust the xattr names the VFS
* module vfs_streams_xattr uses for storing ADS's. This defaults to
* user.DosStream.ADS_NAME:$DATA and can be changed by specifying
* these module parameters:
*
* streams_xattr:prefix = user.
* streams_xattr:store_stream_type = false
*
*
* TODO
* ====
*
* - log diagnostic if any needed VFS module is not loaded
* (eg with lp_vfs_objects())
* - add tests
*/
static int vfs_fruit_debug_level = DBGC_VFS;
#undef DBGC_CLASS
#define DBGC_CLASS vfs_fruit_debug_level
#define FRUIT_PARAM_TYPE_NAME "fruit"
#define ADOUBLE_NAME_PREFIX "._"
/*
* REVIEW:
* This is hokey, but what else can we do?
*/
#if defined(HAVE_ATTROPEN) || defined(FREEBSD)
#define AFPINFO_EA_NETATALK "org.netatalk.Metadata"
#define AFPRESOURCE_EA_NETATALK "org.netatalk.ResourceFork"
#else
#define AFPINFO_EA_NETATALK "user.org.netatalk.Metadata"
#define AFPRESOURCE_EA_NETATALK "user.org.netatalk.ResourceFork"
#endif
enum apple_fork {APPLE_FORK_DATA, APPLE_FORK_RSRC};
enum fruit_rsrc {FRUIT_RSRC_STREAM, FRUIT_RSRC_ADFILE, FRUIT_RSRC_XATTR};
enum fruit_meta {FRUIT_META_STREAM, FRUIT_META_NETATALK};
enum fruit_locking {FRUIT_LOCKING_NETATALK, FRUIT_LOCKING_NONE};
enum fruit_encoding {FRUIT_ENC_NATIVE, FRUIT_ENC_PRIVATE};
struct fruit_config_data {
enum fruit_rsrc rsrc;
enum fruit_meta meta;
enum fruit_locking locking;
enum fruit_encoding encoding;
bool use_aapl;
bool readdir_attr_enabled;
bool unix_info_enabled;
/*
* Additional undocumented options, all enabled by default,
* possibly useful for analyzing performance. The associated
* operations with each of them may be expensive, so having
* the chance to disable them individually gives a chance
* tweaking the setup for the particular usecase.
*/
bool readdir_attr_rsize;
bool readdir_attr_finder_info;
bool readdir_attr_max_access;
};
static const struct enum_list fruit_rsrc[] = {
{FRUIT_RSRC_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
{FRUIT_RSRC_ADFILE, "file"}, /* ._ AppleDouble file */
{FRUIT_RSRC_XATTR, "xattr"}, /* Netatalk compatible xattr (ZFS only) */
{ -1, NULL}
};
static const struct enum_list fruit_meta[] = {
{FRUIT_META_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
{FRUIT_META_NETATALK, "netatalk"}, /* Netatalk compatible xattr */
{ -1, NULL}
};
static const struct enum_list fruit_locking[] = {
{FRUIT_LOCKING_NETATALK, "netatalk"}, /* synchronize locks with Netatalk */
{FRUIT_LOCKING_NONE, "none"},
{ -1, NULL}
};
static const struct enum_list fruit_encoding[] = {
{FRUIT_ENC_NATIVE, "native"}, /* map unicode private chars to ASCII */
{FRUIT_ENC_PRIVATE, "private"}, /* keep unicode private chars */
{ -1, NULL}
};
/*****************************************************************************
* Defines, functions and data structures that deal with AppleDouble
*****************************************************************************/
/*
* There are two AppleDouble blobs we deal with:
*
* - ADOUBLE_META - AppleDouble blob used by Netatalk for storing
* metadata in an xattr
*
* - ADOUBLE_RSRC - AppleDouble blob used by OS X and Netatalk in
* ._ files
*/
typedef enum {ADOUBLE_META, ADOUBLE_RSRC} adouble_type_t;
/* Version info */
#define AD_VERSION2 0x00020000
#define AD_VERSION AD_VERSION2
/*
* AppleDouble entry IDs.
*/
#define ADEID_DFORK 1
#define ADEID_RFORK 2
#define ADEID_NAME 3
#define ADEID_COMMENT 4
#define ADEID_ICONBW 5
#define ADEID_ICONCOL 6
#define ADEID_FILEI 7
#define ADEID_FILEDATESI 8
#define ADEID_FINDERI 9
#define ADEID_MACFILEI 10
#define ADEID_PRODOSFILEI 11
#define ADEID_MSDOSFILEI 12
#define ADEID_SHORTNAME 13
#define ADEID_AFPFILEI 14
#define ADEID_DID 15
/* Private Netatalk entries */
#define ADEID_PRIVDEV 16
#define ADEID_PRIVINO 17
#define ADEID_PRIVSYN 18
#define ADEID_PRIVID 19
#define ADEID_MAX (ADEID_PRIVID + 1)
/*
* These are the real ids for the private entries,
* as stored in the adouble file
*/
#define AD_DEV 0x80444556
#define AD_INO 0x80494E4F
#define AD_SYN 0x8053594E
#define AD_ID 0x8053567E
/* Number of actually used entries */
#define ADEID_NUM_XATTR 8
#define ADEID_NUM_DOT_UND 2
#define ADEID_NUM_RSRC_XATTR 1
/* AppleDouble magic */
#define AD_APPLESINGLE_MAGIC 0x00051600
#define AD_APPLEDOUBLE_MAGIC 0x00051607
#define AD_MAGIC AD_APPLEDOUBLE_MAGIC
/* Sizes of relevant entry bits */
#define ADEDLEN_MAGIC 4
#define ADEDLEN_VERSION 4
#define ADEDLEN_FILLER 16
#define AD_FILLER_TAG "Netatalk " /* should be 16 bytes */
#define ADEDLEN_NENTRIES 2
#define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
ADEDLEN_FILLER + ADEDLEN_NENTRIES) /* 26 */
#define AD_ENTRY_LEN_EID 4
#define AD_ENTRY_LEN_OFF 4
#define AD_ENTRY_LEN_LEN 4
#define AD_ENTRY_LEN (AD_ENTRY_LEN_EID + AD_ENTRY_LEN_OFF + AD_ENTRY_LEN_LEN)
/* Field widths */
#define ADEDLEN_NAME 255
#define ADEDLEN_COMMENT 200
#define ADEDLEN_FILEI 16
#define ADEDLEN_FINDERI 32
#define ADEDLEN_FILEDATESI 16
#define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
#define ADEDLEN_AFPFILEI 4
#define ADEDLEN_MACFILEI 4
#define ADEDLEN_PRODOSFILEI 8
#define ADEDLEN_MSDOSFILEI 2
#define ADEDLEN_DID 4
#define ADEDLEN_PRIVDEV 8
#define ADEDLEN_PRIVINO 8
#define ADEDLEN_PRIVSYN 8
#define ADEDLEN_PRIVID 4
/* Offsets */
#define ADEDOFF_MAGIC 0
#define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
#define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
#define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
#define ADEDOFF_FINDERI_XATTR (AD_HEADER_LEN + \
(ADEID_NUM_XATTR * AD_ENTRY_LEN))
#define ADEDOFF_COMMENT_XATTR (ADEDOFF_FINDERI_XATTR + ADEDLEN_FINDERI)
#define ADEDOFF_FILEDATESI_XATTR (ADEDOFF_COMMENT_XATTR + ADEDLEN_COMMENT)
#define ADEDOFF_AFPFILEI_XATTR (ADEDOFF_FILEDATESI_XATTR + \
ADEDLEN_FILEDATESI)
#define ADEDOFF_PRIVDEV_XATTR (ADEDOFF_AFPFILEI_XATTR + ADEDLEN_AFPFILEI)
#define ADEDOFF_PRIVINO_XATTR (ADEDOFF_PRIVDEV_XATTR + ADEDLEN_PRIVDEV)
#define ADEDOFF_PRIVSYN_XATTR (ADEDOFF_PRIVINO_XATTR + ADEDLEN_PRIVINO)
#define ADEDOFF_PRIVID_XATTR (ADEDOFF_PRIVSYN_XATTR + ADEDLEN_PRIVSYN)
#define ADEDOFF_FINDERI_DOT_UND (AD_HEADER_LEN + \
(ADEID_NUM_DOT_UND * AD_ENTRY_LEN))
#define ADEDOFF_RFORK_DOT_UND (ADEDOFF_FINDERI_DOT_UND + ADEDLEN_FINDERI)
#define AD_DATASZ_XATTR (AD_HEADER_LEN + \
(ADEID_NUM_XATTR * AD_ENTRY_LEN) + \
ADEDLEN_FINDERI + ADEDLEN_COMMENT + \
ADEDLEN_FILEDATESI + ADEDLEN_AFPFILEI + \
ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + \
ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
#if AD_DATASZ_XATTR != 402
#error bad size for AD_DATASZ_XATTR
#endif
#define AD_DATASZ_DOT_UND (AD_HEADER_LEN + \
(ADEID_NUM_DOT_UND * AD_ENTRY_LEN) + \
ADEDLEN_FINDERI)
#if AD_DATASZ_DOT_UND != 82
#error bad size for AD_DATASZ_DOT_UND
#endif
/*
* Sharemode locks fcntl() offsets
*/
#if _FILE_OFFSET_BITS == 64 || defined(HAVE_LARGEFILE)
#define AD_FILELOCK_BASE (UINT64_C(0x7FFFFFFFFFFFFFFF) - 9)
#else
#define AD_FILELOCK_BASE (UINT32_C(0x7FFFFFFF) - 9)
#endif
#define BYTELOCK_MAX (AD_FILELOCK_BASE - 1)
#define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
#define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
#define AD_FILELOCK_RSRC_OPEN_WR (AD_FILELOCK_BASE + 2)
#define AD_FILELOCK_RSRC_OPEN_RD (AD_FILELOCK_BASE + 3)
#define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 4)
#define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 5)
#define AD_FILELOCK_RSRC_DENY_WR (AD_FILELOCK_BASE + 6)
#define AD_FILELOCK_RSRC_DENY_RD (AD_FILELOCK_BASE + 7)
#define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 8)
#define AD_FILELOCK_RSRC_OPEN_NONE (AD_FILELOCK_BASE + 9)
/* Time stuff we overload the bits a little */
#define AD_DATE_CREATE 0
#define AD_DATE_MODIFY 4
#define AD_DATE_BACKUP 8
#define AD_DATE_ACCESS 12
#define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
AD_DATE_BACKUP | AD_DATE_ACCESS)
#define AD_DATE_UNIX (1 << 10)
#define AD_DATE_START 0x80000000
#define AD_DATE_DELTA 946684800
#define AD_DATE_FROM_UNIX(x) (htonl((x) - AD_DATE_DELTA))
#define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
/* Accessor macros */
#define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
#define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
#define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
#define ad_setentryoff(ad,eid,off) ((ad)->ad_eid[(eid)].ade_off = (off))
#define ad_entry(ad,eid) ((ad)->ad_data + ad_getentryoff((ad),(eid)))
struct ad_entry {
size_t ade_off;
size_t ade_len;
};
struct adouble {
vfs_handle_struct *ad_handle;
files_struct *ad_fsp;
adouble_type_t ad_type;
uint32_t ad_magic;
uint32_t ad_version;
struct ad_entry ad_eid[ADEID_MAX];
char *ad_data;
};
struct ad_entry_order {
uint32_t id, offset, len;
};
/* Netatalk AppleDouble metadata xattr */
static const
struct ad_entry_order entry_order_meta_xattr[ADEID_NUM_XATTR + 1] = {
{ADEID_FINDERI, ADEDOFF_FINDERI_XATTR, ADEDLEN_FINDERI},
{ADEID_COMMENT, ADEDOFF_COMMENT_XATTR, 0},
{ADEID_FILEDATESI, ADEDOFF_FILEDATESI_XATTR, ADEDLEN_FILEDATESI},
{ADEID_AFPFILEI, ADEDOFF_AFPFILEI_XATTR, ADEDLEN_AFPFILEI},
{ADEID_PRIVDEV, ADEDOFF_PRIVDEV_XATTR, 0},
{ADEID_PRIVINO, ADEDOFF_PRIVINO_XATTR, 0},
{ADEID_PRIVSYN, ADEDOFF_PRIVSYN_XATTR, 0},
{ADEID_PRIVID, ADEDOFF_PRIVID_XATTR, 0},
{0, 0, 0}
};
/* AppleDouble ressource fork file (the ones prefixed by "._") */
static const
struct ad_entry_order entry_order_dot_und[ADEID_NUM_DOT_UND + 1] = {
{ADEID_FINDERI, ADEDOFF_FINDERI_DOT_UND, ADEDLEN_FINDERI},
{ADEID_RFORK, ADEDOFF_RFORK_DOT_UND, 0},
{0, 0, 0}
};
/*
* Fake AppleDouble entry oder for ressource fork xattr. The xattr
* isn't an AppleDouble file, it simply contains the ressource data,
* but in order to be able to use some API calls like ad_getentryoff()
* we build a fake/helper struct adouble with this entry order struct.
*/
static const
struct ad_entry_order entry_order_rsrc_xattr[ADEID_NUM_RSRC_XATTR + 1] = {
{ADEID_RFORK, 0, 0},
{0, 0, 0}
};
/* Conversion from enumerated id to on-disk AppleDouble id */
#define AD_EID_DISK(a) (set_eid[a])
static const uint32_t set_eid[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
AD_DEV, AD_INO, AD_SYN, AD_ID
};
/*
* Forward declarations
*/
static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
adouble_type_t type, files_struct *fsp);
static int ad_write(struct adouble *ad, const char *path);
static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out);
/**
* Get a date
**/
static int ad_getdate(const struct adouble *ad,
unsigned int dateoff,
uint32_t *date)
{
bool xlate = (dateoff & AD_DATE_UNIX);
dateoff &= AD_DATE_MASK;
if (!ad_getentryoff(ad, ADEID_FILEDATESI)) {
return -1;
}
if (dateoff > AD_DATE_ACCESS) {
return -1;
}
memcpy(date,
ad_entry(ad, ADEID_FILEDATESI) + dateoff,
sizeof(uint32_t));
if (xlate) {
*date = AD_DATE_TO_UNIX(*date);
}
return 0;
}
/**
* Set a date
**/
static int ad_setdate(struct adouble *ad, unsigned int dateoff, uint32_t date)
{
bool xlate = (dateoff & AD_DATE_UNIX);
if (!ad_getentryoff(ad, ADEID_FILEDATESI)) {
return 0;
}
dateoff &= AD_DATE_MASK;
if (xlate) {
date = AD_DATE_FROM_UNIX(date);
}
if (dateoff > AD_DATE_ACCESS) {
return -1;
}
memcpy(ad_entry(ad, ADEID_FILEDATESI) + dateoff, &date, sizeof(date));
return 0;
}
/**
* Map on-disk AppleDouble id to enumerated id
**/
static uint32_t get_eid(uint32_t eid)
{
if (eid <= 15) {
return eid;
}
switch (eid) {
case AD_DEV:
return ADEID_PRIVDEV;
case AD_INO:
return ADEID_PRIVINO;
case AD_SYN:
return ADEID_PRIVSYN;
case AD_ID:
return ADEID_PRIVID;
default:
break;
}
return 0;
}
/**
* Pack AppleDouble structure into data buffer
**/
static bool ad_pack(struct adouble *ad)
{
uint32_t eid;
uint16_t nent;
uint32_t bufsize;
uint32_t offset = 0;
bufsize = talloc_get_size(ad->ad_data);
if (offset + ADEDLEN_MAGIC < offset ||
offset + ADEDLEN_MAGIC >= bufsize) {
return false;
}
RSIVAL(ad->ad_data, offset, ad->ad_magic);
offset += ADEDLEN_MAGIC;
if (offset + ADEDLEN_VERSION < offset ||
offset + ADEDLEN_VERSION >= bufsize) {
return false;
}
RSIVAL(ad->ad_data, offset, ad->ad_version);
offset += ADEDLEN_VERSION;
if (offset + ADEDLEN_FILLER < offset ||
offset + ADEDLEN_FILLER >= bufsize) {
return false;
}
if (ad->ad_type == ADOUBLE_RSRC) {
memcpy(ad->ad_data + offset, AD_FILLER_TAG, ADEDLEN_FILLER);
}
offset += ADEDLEN_FILLER;
if (offset + ADEDLEN_NENTRIES < offset ||
offset + ADEDLEN_NENTRIES >= bufsize) {
return false;
}
offset += ADEDLEN_NENTRIES;
for (eid = 0, nent = 0; eid < ADEID_MAX; eid++) {
if (ad->ad_eid[eid].ade_off == 0) {
/*
* ade_off is also used as indicator whether a
* specific entry is used or not
*/
continue;
}
if (offset + AD_ENTRY_LEN_EID < offset ||
offset + AD_ENTRY_LEN_EID >= bufsize) {
return false;
}
RSIVAL(ad->ad_data, offset, AD_EID_DISK(eid));
offset += AD_ENTRY_LEN_EID;
if (offset + AD_ENTRY_LEN_OFF < offset ||
offset + AD_ENTRY_LEN_OFF >= bufsize) {
return false;
}
RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_off);
offset += AD_ENTRY_LEN_OFF;
if (offset + AD_ENTRY_LEN_LEN < offset ||
offset + AD_ENTRY_LEN_LEN >= bufsize) {
return false;
}
RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_len);
offset += AD_ENTRY_LEN_LEN;
nent++;
}
if (ADEDOFF_NENTRIES + 2 >= bufsize) {
return false;
}
RSSVAL(ad->ad_data, ADEDOFF_NENTRIES, nent);
return 0;
}
/**
* Unpack an AppleDouble blob into a struct adoble
**/
static bool ad_unpack(struct adouble *ad, const int nentries)
{
size_t bufsize = talloc_get_size(ad->ad_data);
int adentries, i;
uint32_t eid, len, off;
/*
* The size of the buffer ad->ad_data is checked when read, so
* we wouldn't have to check our own offsets, a few extra
* checks won't hurt though. We have to check the offsets we
* read from the buffer anyway.
*/
if (bufsize < (AD_HEADER_LEN + (AD_ENTRY_LEN * nentries))) {
DEBUG(1, ("bad size\n"));
return false;
}
ad->ad_magic = RIVAL(ad->ad_data, 0);
ad->ad_version = RIVAL(ad->ad_data, ADEDOFF_VERSION);
if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION)) {
DEBUG(1, ("wrong magic or version\n"));
return false;
}
adentries = RSVAL(ad->ad_data, ADEDOFF_NENTRIES);
if (adentries != nentries) {
DEBUG(1, ("invalid number of entries: %d\n", adentries));
return false;
}
/* now, read in the entry bits */
for (i = 0; i < adentries; i++) {
eid = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN));
eid = get_eid(eid);
off = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 4);
len = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 8);
if (!eid || eid > ADEID_MAX) {
DEBUG(1, ("bogus eid %d\n", eid));
return false;
}
if ((off > bufsize) && (eid != ADEID_RFORK)) {
DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
eid, off, len));
return false;
}
if ((eid != ADEID_RFORK) &&
(eid != ADEID_FINDERI) &&
((off + len) > bufsize)) {
DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
eid, off, len));
return false;
}
ad->ad_eid[eid].ade_off = off;
ad->ad_eid[eid].ade_len = len;
}
return true;
}
/**
* Convert from Apple's ._ file to Netatalk
*
* Apple's AppleDouble may contain a FinderInfo entry longer then 32
* bytes containing packed xattrs. Netatalk can't deal with that, so
* we simply discard the packed xattrs.
*
* @return -1 in case an error occured, 0 if no conversion was done, 1
* otherwise
**/
static int ad_convert(struct adouble *ad, int fd)
{
int rc = 0;
char *map = MAP_FAILED;
size_t origlen;
origlen = ad_getentryoff(ad, ADEID_RFORK) +
ad_getentrylen(ad, ADEID_RFORK);
/* FIXME: direct use of mmap(), vfs_aio_fork does it too */
map = mmap(NULL, origlen, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (map == MAP_FAILED) {
DEBUG(2, ("mmap AppleDouble: %s\n", strerror(errno)));
rc = -1;
goto exit;
}
memmove(map + ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI,
map + ad_getentryoff(ad, ADEID_RFORK),
ad_getentrylen(ad, ADEID_RFORK));
ad_setentrylen(ad, ADEID_FINDERI, ADEDLEN_FINDERI);
ad_setentryoff(ad, ADEID_RFORK,
ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI);
/*
* FIXME: direct ftruncate(), but we don't have a fsp for the
* VFS call
*/
rc = ftruncate(fd, ad_getentryoff(ad, ADEID_RFORK)
+ ad_getentrylen(ad, ADEID_RFORK));
exit:
if (map != MAP_FAILED) {
munmap(map, origlen);
}
return rc;
}
/**
* Read and parse Netatalk AppleDouble metadata xattr
**/
static ssize_t ad_header_read_meta(struct adouble *ad, const char *path)
{
int rc = 0;
ssize_t ealen;
bool ok;
DEBUG(10, ("reading meta xattr for %s\n", path));
ealen = SMB_VFS_GETXATTR(ad->ad_handle->conn, path,
AFPINFO_EA_NETATALK, ad->ad_data,
AD_DATASZ_XATTR);
if (ealen == -1) {
switch (errno) {
case ENOATTR:
case ENOENT:
if (errno == ENOATTR) {
errno = ENOENT;
}
rc = -1;
goto exit;
default:
DEBUG(2, ("error reading meta xattr: %s\n",
strerror(errno)));
rc = -1;
goto exit;
}
}
if (ealen != AD_DATASZ_XATTR) {
DEBUG(2, ("bad size %zd\n", ealen));
errno = EINVAL;
rc = -1;
goto exit;
}
/* Now parse entries */
ok = ad_unpack(ad, ADEID_NUM_XATTR);
if (!ok) {
DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
errno = EINVAL;
rc = -1;
goto exit;
}
if (!ad_getentryoff(ad, ADEID_FINDERI)
|| !ad_getentryoff(ad, ADEID_COMMENT)
|| !ad_getentryoff(ad, ADEID_FILEDATESI)
|| !ad_getentryoff(ad, ADEID_AFPFILEI)
|| !ad_getentryoff(ad, ADEID_PRIVDEV)
|| !ad_getentryoff(ad, ADEID_PRIVINO)
|| !ad_getentryoff(ad, ADEID_PRIVSYN)
|| !ad_getentryoff(ad, ADEID_PRIVID)) {
DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
errno = EINVAL;
rc = -1;
goto exit;
}
exit:
DEBUG(10, ("reading meta xattr for %s, rc: %d\n", path, rc));
if (rc != 0) {
ealen = -1;
if (errno == EINVAL) {
become_root();
removexattr(path, AFPINFO_EA_NETATALK);
unbecome_root();
errno = ENOENT;
}
}
return ealen;
}
/**
* Read and parse resource fork, either ._ AppleDouble file or xattr
**/
static ssize_t ad_header_read_rsrc(struct adouble *ad, const char *path)
{
struct fruit_config_data *config = NULL;
int fd = -1;
int rc = 0;
ssize_t len;
char *adpath = NULL;
bool opened = false;
int mode;
struct adouble *meta_ad = NULL;
SMB_STRUCT_STAT sbuf;
bool ok;
int saved_errno = 0;
SMB_VFS_HANDLE_GET_DATA(ad->ad_handle, config,
struct fruit_config_data, return -1);
/* Try rw first so we can use the fd in ad_convert() */
mode = O_RDWR;
if (ad->ad_fsp && ad->ad_fsp->fh && (ad->ad_fsp->fh->fd != -1)) {
fd = ad->ad_fsp->fh->fd;
} else {
if (config->rsrc == FRUIT_RSRC_XATTR) {
adpath = talloc_strdup(talloc_tos(), path);
} else {
rc = adouble_path(talloc_tos(), path, &adpath);
if (rc != 0) {
goto exit;
}
}
retry:
if (config->rsrc == FRUIT_RSRC_XATTR) {
#ifndef HAVE_ATTROPEN
errno = ENOSYS;
rc = -1;
goto exit;
#else
/* FIXME: direct Solaris xattr syscall */
fd = attropen(adpath, AFPRESOURCE_EA_NETATALK,
mode, 0);
#endif
} else {
/* FIXME: direct open(), don't have an fsp */
fd = open(adpath, mode);
}
if (fd == -1) {
switch (errno) {
case EROFS:
case EACCES:
if (mode == O_RDWR) {
mode = O_RDONLY;
goto retry;
}
/* fall through ... */
default:
DEBUG(2, ("open AppleDouble: %s, %s\n",
adpath, strerror(errno)));
rc = -1;
goto exit;
}
}
opened = true;
}
if (config->rsrc == FRUIT_RSRC_XATTR) {
/* FIXME: direct sys_fstat(), don't have an fsp */
rc = sys_fstat(
fd, &sbuf,
lp_fake_directory_create_times(
SNUM(ad->ad_handle->conn)));
if (rc != 0) {
goto exit;
}
ad_setentrylen(ad, ADEID_RFORK, sbuf.st_ex_size);
} else {
/* FIXME: direct sys_pread(), don't have an fsp */
len = sys_pread(fd, ad->ad_data, AD_DATASZ_DOT_UND, 0);
if (len != AD_DATASZ_DOT_UND) {
DEBUG(2, ("%s: bad size: %zd\n",
strerror(errno), len));
rc = -1;
goto exit;
}
/* Now parse entries */
ok = ad_unpack(ad, ADEID_NUM_DOT_UND);
if (!ok) {
DEBUG(1, ("invalid AppleDouble ressource %s\n", path));
errno = EINVAL;
rc = -1;
goto exit;
}
if ((ad_getentryoff(ad, ADEID_FINDERI)
!= ADEDOFF_FINDERI_DOT_UND)
|| (ad_getentrylen(ad, ADEID_FINDERI)
< ADEDLEN_FINDERI)
|| (ad_getentryoff(ad, ADEID_RFORK)
< ADEDOFF_RFORK_DOT_UND)) {
DEBUG(2, ("invalid AppleDouble ressource %s\n", path));
errno = EINVAL;
rc = -1;
goto exit;
}
if ((mode == O_RDWR)
&& (ad_getentrylen(ad, ADEID_FINDERI) > ADEDLEN_FINDERI)) {
rc = ad_convert(ad, fd);
if (rc != 0) {
rc = -1;
goto exit;
}
/*
* Can't use ad_write() because we might not have a fsp
*/
rc = ad_pack(ad);
if (rc != 0) {
goto exit;
}
/* FIXME: direct sys_pwrite(), don't have an fsp */
len = sys_pwrite(fd, ad->ad_data,
AD_DATASZ_DOT_UND, 0);
if (len != AD_DATASZ_DOT_UND) {
DEBUG(2, ("%s: bad size: %zd\n", adpath, len));
rc = -1;
goto exit;
}
meta_ad = ad_init(talloc_tos(), ad->ad_handle,
ADOUBLE_META, NULL);
if (meta_ad == NULL) {
rc = -1;
goto exit;
}
memcpy(ad_entry(meta_ad, ADEID_FINDERI),
ad_entry(ad, ADEID_FINDERI),
ADEDLEN_FINDERI);
rc = ad_write(meta_ad, path);
if (rc != 0) {
rc = -1;
goto exit;
}
}
}
DEBUG(10, ("opened AppleDouble: %s\n", path));
exit:
if (rc != 0) {
saved_errno = errno;
len = -1;
}
if (opened && fd != -1) {
close(fd);
}
TALLOC_FREE(adpath);
TALLOC_FREE(meta_ad);
if (rc != 0) {
errno = saved_errno;
}
return len;
}
/**
* Read and unpack an AppleDouble metadata xattr or resource
**/
static ssize_t ad_read(struct adouble *ad, const char *path)
{
switch (ad->ad_type) {
case ADOUBLE_META:
return ad_header_read_meta(ad, path);
case ADOUBLE_RSRC:
return ad_header_read_rsrc(ad, path);
default:
return -1;
}
}
/**
* Allocate a struct adouble without initialiing it
*
* The struct is either hang of the fsp extension context or if fsp is
* NULL from ctx.
*
* @param[in] ctx talloc context
* @param[in] handle vfs handle
* @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
* @param[in] fsp if not NULL (for stream IO), the adouble handle is
* added as an fsp extension
*
* @return adouble handle
**/
static struct adouble *ad_alloc(TALLOC_CTX *ctx, vfs_handle_struct *handle,
adouble_type_t type, files_struct *fsp)
{
int rc = 0;
size_t adsize = 0;
struct adouble *ad;
struct fruit_config_data *config;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return NULL);
switch (type) {
case ADOUBLE_META:
adsize = AD_DATASZ_XATTR;
break;
case ADOUBLE_RSRC:
if (config->rsrc == FRUIT_RSRC_ADFILE) {
adsize = AD_DATASZ_DOT_UND;
}
break;
default:
return NULL;
}
if (!fsp) {
ad = talloc_zero(ctx, struct adouble);
if (ad == NULL) {
rc = -1;
goto exit;
}
if (adsize) {
ad->ad_data = talloc_zero_array(ad, char, adsize);
}
} else {
ad = (struct adouble *)VFS_ADD_FSP_EXTENSION(handle, fsp,
struct adouble,
NULL);
if (ad == NULL) {
rc = -1;
goto exit;
}
if (adsize) {
ad->ad_data = talloc_zero_array(
VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
char, adsize);
}
ad->ad_fsp = fsp;
}
if (adsize && ad->ad_data == NULL) {
rc = -1;
goto exit;
}
ad->ad_handle = handle;
ad->ad_type = type;
ad->ad_magic = AD_MAGIC;
ad->ad_version = AD_VERSION;
exit:
if (rc != 0) {
TALLOC_FREE(ad);
}
return ad;
}
/**
* Allocate and initialize a new struct adouble
*
* @param[in] ctx talloc context
* @param[in] handle vfs handle
* @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
* @param[in] fsp file handle, may be NULL for a type of e_ad_meta
*
* @return adouble handle, initialized
**/
static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
adouble_type_t type, files_struct *fsp)
{
int rc = 0;
const struct ad_entry_order *eid;
struct adouble *ad = NULL;
struct fruit_config_data *config;
time_t t = time(NULL);
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return NULL);
switch (type) {
case ADOUBLE_META:
eid = entry_order_meta_xattr;
break;
case ADOUBLE_RSRC:
if (config->rsrc == FRUIT_RSRC_ADFILE) {
eid = entry_order_dot_und;
} else {
eid = entry_order_rsrc_xattr;
}
break;
default:
return NULL;
}
ad = ad_alloc(ctx, handle, type, fsp);
if (ad == NULL) {
return NULL;
}
while (eid->id) {
ad->ad_eid[eid->id].ade_off = eid->offset;
ad->ad_eid[eid->id].ade_len = eid->len;
eid++;
}
/* put something sane in the date fields */
ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, t);
ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, t);
ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, t);
ad_setdate(ad, AD_DATE_BACKUP, htonl(AD_DATE_START));
if (rc != 0) {
TALLOC_FREE(ad);
}
return ad;
}
/**
* Return AppleDouble data for a file
*
* @param[in] ctx talloc context
* @param[in] handle vfs handle
* @param[in] path pathname to file or directory
* @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
*
* @return talloced struct adouble or NULL on error
**/
static struct adouble *ad_get(TALLOC_CTX *ctx, vfs_handle_struct *handle,
const char *path, adouble_type_t type)
{
int rc = 0;
ssize_t len;
struct adouble *ad = NULL;
DEBUG(10, ("ad_get(%s) called for %s\n",
type == ADOUBLE_META ? "meta" : "rsrc", path));
ad = ad_alloc(ctx, handle, type, NULL);
if (ad == NULL) {
rc = -1;
goto exit;
}
len = ad_read(ad, path);
if (len == -1) {
DEBUG(10, ("error reading AppleDouble for %s\n", path));
rc = -1;
goto exit;
}
exit:
DEBUG(10, ("ad_get(%s) for %s returning %d\n",
type == ADOUBLE_META ? "meta" : "rsrc", path, rc));
if (rc != 0) {
TALLOC_FREE(ad);
}
return ad;
}
/**
* Set AppleDouble metadata on a file or directory
*
* @param[in] ad adouble handle
* @param[in] path pathname to file or directory, may be NULL for a
* resource fork
*
* @return status code, 0 means success
**/
static int ad_write(struct adouble *ad, const char *path)
{
int rc = 0;
ssize_t len;
rc = ad_pack(ad);
if (rc != 0) {
goto exit;
}
switch (ad->ad_type) {
case ADOUBLE_META:
rc = SMB_VFS_SETXATTR(ad->ad_handle->conn, path,
AFPINFO_EA_NETATALK, ad->ad_data,
AD_DATASZ_XATTR, 0);
break;
case ADOUBLE_RSRC:
if ((ad->ad_fsp == NULL)
|| (ad->ad_fsp->fh == NULL)
|| (ad->ad_fsp->fh->fd == -1)) {
rc = -1;
goto exit;
}
/* FIXME: direct sys_pwrite(), don't have an fsp */
len = sys_pwrite(ad->ad_fsp->fh->fd, ad->ad_data,
talloc_get_size(ad->ad_data), 0);
if (len != talloc_get_size(ad->ad_data)) {
DEBUG(1, ("short write on %s: %zd",
fsp_str_dbg(ad->ad_fsp), len));
rc = -1;
goto exit;
}
break;
default:
return -1;
}
exit:
return rc;
}
/*****************************************************************************
* Helper functions
*****************************************************************************/
static bool is_afpinfo_stream(const struct smb_filename *smb_fname)
{
if (strncasecmp_m(smb_fname->stream_name,
AFPINFO_STREAM_NAME,
strlen(AFPINFO_STREAM_NAME)) == 0) {
return true;
}
return false;
}
static bool is_afpresource_stream(const struct smb_filename *smb_fname)
{
if (strncasecmp_m(smb_fname->stream_name,
AFPRESOURCE_STREAM_NAME,
strlen(AFPRESOURCE_STREAM_NAME)) == 0) {
return true;
}
return false;
}
/**
* Test whether stream is an Apple stream, not used atm
**/
#if 0
static bool is_apple_stream(const struct smb_filename *smb_fname)
{
if (is_afpinfo_stream(smb_fname)) {
return true;
}
if (is_afpresource_stream(smb_fname)) {
return true;
}
return false;
}
#endif
/**
* Initialize config struct from our smb.conf config parameters
**/
static int init_fruit_config(vfs_handle_struct *handle)
{
struct fruit_config_data *config;
int enumval;
config = talloc_zero(handle->conn, struct fruit_config_data);
if (!config) {
DEBUG(1, ("talloc_zero() failed\n"));
errno = ENOMEM;
return -1;
}
enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
if (enumval == -1) {
DEBUG(1, ("value for %s: ressource type unknown\n",
FRUIT_PARAM_TYPE_NAME));
return -1;
}
config->rsrc = (enum fruit_rsrc)enumval;
enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"metadata", fruit_meta, FRUIT_META_NETATALK);
if (enumval == -1) {
DEBUG(1, ("value for %s: metadata type unknown\n",
FRUIT_PARAM_TYPE_NAME));
return -1;
}
config->meta = (enum fruit_meta)enumval;
enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"locking", fruit_locking, FRUIT_LOCKING_NONE);
if (enumval == -1) {
DEBUG(1, ("value for %s: locking type unknown\n",
FRUIT_PARAM_TYPE_NAME));
return -1;
}
config->locking = (enum fruit_locking)enumval;
enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
if (enumval == -1) {
DEBUG(1, ("value for %s: encoding type unknown\n",
FRUIT_PARAM_TYPE_NAME));
return -1;
}
config->encoding = (enum fruit_encoding)enumval;
if (lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME, "aapl", true)) {
config->use_aapl = true;
}
if (lp_parm_bool(SNUM(handle->conn),
"readdir_attr", "aapl_rsize", true)) {
config->readdir_attr_rsize = true;
}
if (lp_parm_bool(SNUM(handle->conn),
"readdir_attr", "aapl_finder_info", true)) {
config->readdir_attr_finder_info = true;
}
if (lp_parm_bool(SNUM(handle->conn),
"readdir_attr", "aapl_max_access", true)) {
config->readdir_attr_max_access = true;
}
SMB_VFS_HANDLE_SET_DATA(handle, config,
NULL, struct fruit_config_data,
return -1);
return 0;
}
/**
* Prepend "._" to a basename
**/
static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out)
{
char *parent;
const char *base;
if (!parent_dirname(ctx, path_in, &parent, &base)) {
return -1;
}
*path_out = talloc_asprintf(ctx, "%s/._%s", parent, base);
if (*path_out == NULL) {
return -1;
}
return 0;
}
/**
* Allocate and initialize an AfpInfo struct
**/
static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
{
AfpInfo *ai = talloc_zero(ctx, AfpInfo);
if (ai == NULL) {
return NULL;
}
ai->afpi_Signature = AFP_Signature;
ai->afpi_Version = AFP_Version;
ai->afpi_BackupTime = AD_DATE_START;
return ai;
}
/**
* Pack an AfpInfo struct into a buffer
*
* Buffer size must be at least AFP_INFO_SIZE
* Returns size of packed buffer
**/
static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
{
memset(buf, 0, AFP_INFO_SIZE);
RSIVAL(buf, 0, ai->afpi_Signature);
RSIVAL(buf, 4, ai->afpi_Version);
RSIVAL(buf, 12, ai->afpi_BackupTime);
memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
return AFP_INFO_SIZE;
}
/**
* Unpack a buffer into a AfpInfo structure
*
* Buffer size must be at least AFP_INFO_SIZE
* Returns allocated AfpInfo struct
**/
static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
{
AfpInfo *ai = talloc_zero(ctx, AfpInfo);
if (ai == NULL) {
return NULL;
}
ai->afpi_Signature = RIVAL(data, 0);
ai->afpi_Version = RIVAL(data, 4);
ai->afpi_BackupTime = RIVAL(data, 12);
memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
sizeof(ai->afpi_FinderInfo));
if (ai->afpi_Signature != AFP_Signature
|| ai->afpi_Version != AFP_Version) {
DEBUG(1, ("Bad AfpInfo signature or version\n"));
TALLOC_FREE(ai);
}
return ai;
}
/**
* Fake an inode number from the md5 hash of the (xattr) name
**/
static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
{
MD5_CTX ctx;
unsigned char hash[16];
SMB_INO_T result;
char *upper_sname;
upper_sname = talloc_strdup_upper(talloc_tos(), sname);
SMB_ASSERT(upper_sname != NULL);
MD5Init(&ctx);
MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
sizeof(sbuf->st_ex_dev));
MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
sizeof(sbuf->st_ex_ino));
MD5Update(&ctx, (unsigned char *)upper_sname,
talloc_get_size(upper_sname)-1);
MD5Final(hash, &ctx);
TALLOC_FREE(upper_sname);
/* Hopefully all the variation is in the lower 4 (or 8) bytes! */
memcpy(&result, hash, sizeof(result));
DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
sname, (unsigned long long)result));
return result;
}
/**
* Ensure ad_fsp is still valid
**/
static bool fruit_fsp_recheck(struct adouble *ad, files_struct *fsp)
{
if (ad->ad_fsp == fsp) {
return true;
}
ad->ad_fsp = fsp;
return true;
}
static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
struct stream_struct **streams,
const char *name, off_t size,
off_t alloc_size)
{
struct stream_struct *tmp;
tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
(*num_streams)+1);
if (tmp == NULL) {
return false;
}
tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
if (tmp[*num_streams].name == NULL) {
return false;
}
tmp[*num_streams].size = size;
tmp[*num_streams].alloc_size = alloc_size;
*streams = tmp;
*num_streams += 1;
return true;
}
static bool empty_finderinfo(const struct adouble *ad)
{
char emptybuf[ADEDLEN_FINDERI] = {0};
if (memcmp(emptybuf,
ad_entry(ad, ADEID_FINDERI),
ADEDLEN_FINDERI) == 0) {
return true;
}
return false;
}
/**
* Update btime with btime from Netatalk
**/
static void update_btime(vfs_handle_struct *handle,
struct smb_filename *smb_fname)
{
uint32_t t;
struct timespec creation_time = {0};
struct adouble *ad;
ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
if (ad == NULL) {
return;
}
if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
TALLOC_FREE(ad);
return;
}
TALLOC_FREE(ad);
creation_time.tv_sec = convert_uint32_t_to_time_t(t);
update_stat_ex_create_time(&smb_fname->st, creation_time);
return;
}
/**
* Map an access mask to a Netatalk single byte byte range lock
**/
static off_t access_to_netatalk_brl(enum apple_fork fork_type,
uint32_t access_mask)
{
off_t offset;
switch (access_mask) {
case FILE_READ_DATA:
offset = AD_FILELOCK_OPEN_RD;
break;
case FILE_WRITE_DATA:
case FILE_APPEND_DATA:
offset = AD_FILELOCK_OPEN_WR;
break;
default:
offset = AD_FILELOCK_OPEN_NONE;
break;
}
if (fork_type == APPLE_FORK_RSRC) {
if (offset == AD_FILELOCK_OPEN_NONE) {
offset = AD_FILELOCK_RSRC_OPEN_NONE;
} else {
offset += 2;
}
}
return offset;
}
/**
* Map a deny mode to a Netatalk brl
**/
static off_t denymode_to_netatalk_brl(enum apple_fork fork_type,
uint32_t deny_mode)
{
off_t offset;
switch (deny_mode) {
case DENY_READ:
offset = AD_FILELOCK_DENY_RD;
break;
case DENY_WRITE:
offset = AD_FILELOCK_DENY_WR;
break;
default:
smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
}
if (fork_type == APPLE_FORK_RSRC) {
offset += 2;
}
return offset;
}
/**
* Call fcntl() with an exclusive F_GETLK request in order to
* determine if there's an exisiting shared lock
*
* @return true if the requested lock was found or any error occured
* false if the lock was not found
**/
static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
{
bool result;
off_t offset = in_offset;
off_t len = 1;
int type = F_WRLCK;
pid_t pid;
result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
if (result == false) {
return true;
}
if (type != F_UNLCK) {
return true;
}
return false;
}
static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
files_struct *fsp,
uint32_t access_mask,
uint32_t deny_mode)
{
NTSTATUS status = NT_STATUS_OK;
struct byte_range_lock *br_lck = NULL;
bool open_for_reading, open_for_writing, deny_read, deny_write;
off_t off;
/* FIXME: hardcoded data fork, add resource fork */
enum apple_fork fork_type = APPLE_FORK_DATA;
DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
fsp_str_dbg(fsp),
access_mask & FILE_READ_DATA ? "READ" :"-",
access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
deny_mode & DENY_READ ? "DENY_READ" : "-",
deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
/*
* Check read access and deny read mode
*/
if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
/* Check access */
open_for_reading = test_netatalk_lock(
fsp, access_to_netatalk_brl(fork_type, FILE_READ_DATA));
deny_read = test_netatalk_lock(
fsp, denymode_to_netatalk_brl(fork_type, DENY_READ));
DEBUG(10, ("read: %s, deny_write: %s\n",
open_for_reading == true ? "yes" : "no",
deny_read == true ? "yes" : "no"));
if (((access_mask & FILE_READ_DATA) && deny_read)
|| ((deny_mode & DENY_READ) && open_for_reading)) {
return NT_STATUS_SHARING_VIOLATION;
}
/* Set locks */
if (access_mask & FILE_READ_DATA) {
off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
br_lck = do_lock(
handle->conn->sconn->msg_ctx, fsp,
fsp->op->global->open_persistent_id, 1, off,
READ_LOCK, POSIX_LOCK, false,
&status, NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
TALLOC_FREE(br_lck);
}
if (deny_mode & DENY_READ) {
off = denymode_to_netatalk_brl(fork_type, DENY_READ);
br_lck = do_lock(
handle->conn->sconn->msg_ctx, fsp,
fsp->op->global->open_persistent_id, 1, off,
READ_LOCK, POSIX_LOCK, false,
&status, NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
TALLOC_FREE(br_lck);
}
}
/*
* Check write access and deny write mode
*/
if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
/* Check access */
open_for_writing = test_netatalk_lock(
fsp, access_to_netatalk_brl(fork_type, FILE_WRITE_DATA));
deny_write = test_netatalk_lock(
fsp, denymode_to_netatalk_brl(fork_type, DENY_WRITE));
DEBUG(10, ("write: %s, deny_write: %s\n",
open_for_writing == true ? "yes" : "no",
deny_write == true ? "yes" : "no"));
if (((access_mask & FILE_WRITE_DATA) && deny_write)
|| ((deny_mode & DENY_WRITE) && open_for_writing)) {
return NT_STATUS_SHARING_VIOLATION;
}
/* Set locks */
if (access_mask & FILE_WRITE_DATA) {
off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
br_lck = do_lock(
handle->conn->sconn->msg_ctx, fsp,
fsp->op->global->open_persistent_id, 1, off,
READ_LOCK, POSIX_LOCK, false,
&status, NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
TALLOC_FREE(br_lck);
}
if (deny_mode & DENY_WRITE) {
off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
br_lck = do_lock(
handle->conn->sconn->msg_ctx, fsp,
fsp->op->global->open_persistent_id, 1, off,
READ_LOCK, POSIX_LOCK, false,
&status, NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
TALLOC_FREE(br_lck);
}
}
TALLOC_FREE(br_lck);
return status;
}
static NTSTATUS check_aapl(vfs_handle_struct *handle,
struct smb_request *req,
const struct smb2_create_blobs *in_context_blobs,
struct smb2_create_blobs *out_context_blobs)
{
struct fruit_config_data *config;
NTSTATUS status;
struct smb2_create_blob *aapl = NULL;
uint32_t cmd;
bool ok;
uint8_t p[16];
DATA_BLOB blob = data_blob_talloc(req, NULL, 0);
uint64_t req_bitmap, client_caps;
uint64_t server_caps = SMB2_CRTCTX_AAPL_UNIX_BASED;
smb_ucs2_t *model;
size_t modellen;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
if (!config->use_aapl
|| in_context_blobs == NULL
|| out_context_blobs == NULL) {
return NT_STATUS_OK;
}
aapl = smb2_create_blob_find(in_context_blobs,
SMB2_CREATE_TAG_AAPL);
if (aapl == NULL) {
return NT_STATUS_OK;
}
if (aapl->data.length != 24) {
DEBUG(1, ("unexpected AAPL ctxt legnth: %ju\n",
(uintmax_t)aapl->data.length));
return NT_STATUS_INVALID_PARAMETER;
}
cmd = IVAL(aapl->data.data, 0);
if (cmd != SMB2_CRTCTX_AAPL_SERVER_QUERY) {
DEBUG(1, ("unsupported AAPL cmd: %d\n", cmd));
return NT_STATUS_INVALID_PARAMETER;
}
req_bitmap = BVAL(aapl->data.data, 8);
client_caps = BVAL(aapl->data.data, 16);
SIVAL(p, 0, SMB2_CRTCTX_AAPL_SERVER_QUERY);
SIVAL(p, 4, 0);
SBVAL(p, 8, req_bitmap);
ok = data_blob_append(req, &blob, p, 16);
if (!ok) {
return NT_STATUS_UNSUCCESSFUL;
}
if (req_bitmap & SMB2_CRTCTX_AAPL_SERVER_CAPS) {
if ((client_caps & SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR) &&
(handle->conn->tcon->compat->fs_capabilities & FILE_NAMED_STREAMS)) {
server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR;
config->readdir_attr_enabled = true;
}
/*
* The client doesn't set the flag, so we can't check
* for it and just set it unconditionally
*/
server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
config->unix_info_enabled = true;
SBVAL(p, 0, server_caps);
ok = data_blob_append(req, &blob, p, 8);
if (!ok) {
return NT_STATUS_UNSUCCESSFUL;
}
}
if (req_bitmap & SMB2_CRTCTX_AAPL_VOLUME_CAPS) {
SBVAL(p, 0,
lp_case_sensitive(SNUM(handle->conn->tcon->compat)) ?
SMB2_CRTCTX_AAPL_CASE_SENSITIVE : 0);
ok = data_blob_append(req, &blob, p, 8);
if (!ok) {
return NT_STATUS_UNSUCCESSFUL;
}
}
if (req_bitmap & SMB2_CRTCTX_AAPL_MODEL_INFO) {
ok = convert_string_talloc(req,
CH_UNIX, CH_UTF16LE,
"Samba", strlen("Samba"),
&model, &modellen);
if (!ok) {
return NT_STATUS_UNSUCCESSFUL;
}
SIVAL(p, 0, 0);
SIVAL(p + 4, 0, modellen);
ok = data_blob_append(req, &blob, p, 8);
if (!ok) {
talloc_free(model);
return NT_STATUS_UNSUCCESSFUL;
}
ok = data_blob_append(req, &blob, model, modellen);
talloc_free(model);
if (!ok) {
return NT_STATUS_UNSUCCESSFUL;
}
}
status = smb2_create_blob_add(out_context_blobs,
out_context_blobs,
SMB2_CREATE_TAG_AAPL,
blob);
return status;
}
static NTSTATUS readdir_attr_macmeta(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
struct readdir_attr_data *attr_data)
{
NTSTATUS status = NT_STATUS_OK;
uint32_t date_added;
struct adouble *ad = NULL;
struct fruit_config_data *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
/* Ensure we return a default value in the creation_date field */
RSIVAL(&attr_data->attr_data.aapl.finder_info, 12, AD_DATE_START);
/*
* Resource fork length
*/
if (config->readdir_attr_rsize) {
ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
ADOUBLE_RSRC);
if (ad) {
attr_data->attr_data.aapl.rfork_size = ad_getentrylen(
ad, ADEID_RFORK);
TALLOC_FREE(ad);
}
}
/*
* FinderInfo
*/
if (config->readdir_attr_finder_info) {
ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
ADOUBLE_META);
if (ad) {
if (S_ISREG(smb_fname->st.st_ex_mode)) {
/* finder_type */
memcpy(&attr_data->attr_data.aapl.finder_info[0],
ad_entry(ad, ADEID_FINDERI), 4);
/* finder_creator */
memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
ad_entry(ad, ADEID_FINDERI) + 4, 4);
}
/* finder_flags */
memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
ad_entry(ad, ADEID_FINDERI) + 8, 2);
/* finder_ext_flags */
memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
ad_entry(ad, ADEID_FINDERI) + 24, 2);
/* creation date */
date_added = convert_time_t_to_uint32_t(
smb_fname->st.st_ex_btime.tv_sec - AD_DATE_DELTA);
RSIVAL(&attr_data->attr_data.aapl.finder_info[0], 12, date_added);
TALLOC_FREE(ad);
}
}
TALLOC_FREE(ad);
return status;
}
/* Search MS NFS style ACE with UNIX mode */
static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
files_struct *fsp,
const struct security_descriptor *psd,
mode_t *pmode,
bool *pdo_chmod)
{
int i;
struct fruit_config_data *config = NULL;
*pdo_chmod = false;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
if (psd->dacl == NULL || !config->unix_info_enabled) {
return NT_STATUS_OK;
}
for (i = 0; i < psd->dacl->num_aces; i++) {
if (dom_sid_compare_domain(
&global_sid_Unix_NFS_Mode,
&psd->dacl->aces[i].trustee) == 0) {
*pmode = (mode_t)psd->dacl->aces[i].trustee.sub_auths[2];
*pmode &= (S_IRWXU | S_IRWXG | S_IRWXO);
*pdo_chmod = true;
DEBUG(10, ("MS NFS chmod request %s, %04o\n",
fsp_str_dbg(fsp), *pmode));
break;
}
}
return NT_STATUS_OK;
}
/****************************************************************************
* VFS ops
****************************************************************************/
static int fruit_connect(vfs_handle_struct *handle,
const char *service,
const char *user)
{
int rc;
char *list = NULL, *newlist = NULL;
struct fruit_config_data *config;
DEBUG(10, ("fruit_connect\n"));
rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
if (rc < 0) {
return rc;
}
list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
if (list) {
if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
newlist = talloc_asprintf(
list,
"%s/" ADOUBLE_NAME_PREFIX "*/",
list);
lp_do_parameter(SNUM(handle->conn),
"veto files",
newlist);
}
} else {
lp_do_parameter(SNUM(handle->conn),
"veto files",
"/" ADOUBLE_NAME_PREFIX "*/");
}
TALLOC_FREE(list);
rc = init_fruit_config(handle);
if (rc != 0) {
return rc;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->encoding == FRUIT_ENC_NATIVE) {
lp_do_parameter(
SNUM(handle->conn),
"catia:mappings",
"0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
"0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
"0x0d:0xf00d");
}
return rc;
}
static int fruit_open_meta(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
int rc = 0;
struct fruit_config_data *config = NULL;
struct smb_filename *smb_fname_base = NULL;
int baseflags;
int hostfd = -1;
struct adouble *ad = NULL;
DEBUG(10, ("fruit_open_meta for %s\n", smb_fname_str_dbg(smb_fname)));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->meta == FRUIT_META_STREAM) {
return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
/* Create an smb_filename with stream_name == NULL. */
smb_fname_base = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name, NULL, NULL);
if (smb_fname_base == NULL) {
errno = ENOMEM;
rc = -1;
goto exit;
}
/*
* We use baseflags to turn off nasty side-effects when opening the
* underlying file.
*/
baseflags = flags;
baseflags &= ~O_TRUNC;
baseflags &= ~O_EXCL;
baseflags &= ~O_CREAT;
hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
baseflags, mode);
/*
* It is legit to open a stream on a directory, but the base
* fd has to be read-only.
*/
if ((hostfd == -1) && (errno == EISDIR)) {
baseflags &= ~O_ACCMODE;
baseflags |= O_RDONLY;
hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
baseflags, mode);
}
TALLOC_FREE(smb_fname_base);
if (hostfd == -1) {
rc = -1;
goto exit;
}
if (flags & (O_CREAT | O_TRUNC)) {
/*
* The attribute does not exist or needs to be truncated,
* create an AppleDouble EA
*/
ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
handle, ADOUBLE_META, fsp);
if (ad == NULL) {
rc = -1;
goto exit;
}
rc = ad_write(ad, smb_fname->base_name);
if (rc != 0) {
rc = -1;
goto exit;
}
} else {
ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
handle, ADOUBLE_META, fsp);
if (ad == NULL) {
rc = -1;
goto exit;
}
if (ad_read(ad, smb_fname->base_name) == -1) {
rc = -1;
goto exit;
}
}
exit:
DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, hostfd));
if (rc != 0) {
int saved_errno = errno;
if (hostfd >= 0) {
/*
* BUGBUGBUG -- we would need to call
* fd_close_posix here, but we don't have a
* full fsp yet
*/
fsp->fh->fd = hostfd;
SMB_VFS_CLOSE(fsp);
}
hostfd = -1;
errno = saved_errno;
}
return hostfd;
}
static int fruit_open_rsrc(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
int rc = 0;
struct fruit_config_data *config = NULL;
struct adouble *ad = NULL;
struct smb_filename *smb_fname_base = NULL;
char *adpath = NULL;
int hostfd = -1;
DEBUG(10, ("fruit_open_rsrc for %s\n", smb_fname_str_dbg(smb_fname)));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->rsrc) {
case FRUIT_RSRC_STREAM:
return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
case FRUIT_RSRC_XATTR:
#ifdef HAVE_ATTROPEN
hostfd = attropen(smb_fname->base_name,
AFPRESOURCE_EA_NETATALK, flags, mode);
if (hostfd == -1) {
return -1;
}
ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
handle, ADOUBLE_RSRC, fsp);
if (ad == NULL) {
rc = -1;
goto exit;
}
goto exit;
#else
errno = ENOTSUP;
return -1;
#endif
default:
break;
}
if (!(flags & O_CREAT) && !VALID_STAT(smb_fname->st)) {
rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
if (rc != 0) {
rc = -1;
goto exit;
}
}
if (VALID_STAT(smb_fname->st) && S_ISDIR(smb_fname->st.st_ex_mode)) {
/* sorry, but directories don't habe a resource fork */
rc = -1;
goto exit;
}
rc = adouble_path(talloc_tos(), smb_fname->base_name, &adpath);
if (rc != 0) {
goto exit;
}
/* Create an smb_filename with stream_name == NULL. */
smb_fname_base = synthetic_smb_fname(talloc_tos(),
adpath, NULL, NULL);
if (smb_fname_base == NULL) {
errno = ENOMEM;
rc = -1;
goto exit;
}
/* Sanitize flags */
if (flags & O_WRONLY) {
/* We always need read access for the metadata header too */
flags &= ~O_WRONLY;
flags |= O_RDWR;
}
hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
flags, mode);
if (hostfd == -1) {
rc = -1;
goto exit;
}
/* REVIEW: we need this in ad_write() */
fsp->fh->fd = hostfd;
if (flags & (O_CREAT | O_TRUNC)) {
ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
handle, ADOUBLE_RSRC, fsp);
if (ad == NULL) {
rc = -1;
goto exit;
}
rc = ad_write(ad, smb_fname->base_name);
if (rc != 0) {
rc = -1;
goto exit;
}
} else {
ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
handle, ADOUBLE_RSRC, fsp);
if (ad == NULL) {
rc = -1;
goto exit;
}
if (ad_read(ad, smb_fname->base_name) == -1) {
rc = -1;
goto exit;
}
}
exit:
TALLOC_FREE(adpath);
TALLOC_FREE(smb_fname_base);
DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
if (rc != 0) {
int saved_errno = errno;
if (hostfd >= 0) {
/*
* BUGBUGBUG -- we would need to call
* fd_close_posix here, but we don't have a
* full fsp yet
*/
fsp->fh->fd = hostfd;
SMB_VFS_CLOSE(fsp);
}
hostfd = -1;
errno = saved_errno;
}
return hostfd;
}
static int fruit_open(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
DEBUG(10, ("fruit_open called for %s\n",
smb_fname_str_dbg(smb_fname)));
if (!is_ntfs_stream_smb_fname(smb_fname)) {
return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
if (is_afpinfo_stream(smb_fname)) {
return fruit_open_meta(handle, smb_fname, fsp, flags, mode);
} else if (is_afpresource_stream(smb_fname)) {
return fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
}
return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
static int fruit_rename(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname_src,
const struct smb_filename *smb_fname_dst)
{
int rc = -1;
char *src_adouble_path = NULL;
char *dst_adouble_path = NULL;
struct fruit_config_data *config = NULL;
rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
if (!VALID_STAT(smb_fname_src->st)
|| !S_ISREG(smb_fname_src->st.st_ex_mode)) {
return rc;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_XATTR) {
return rc;
}
rc = adouble_path(talloc_tos(), smb_fname_src->base_name,
&src_adouble_path);
if (rc != 0) {
goto done;
}
rc = adouble_path(talloc_tos(), smb_fname_dst->base_name,
&dst_adouble_path);
if (rc != 0) {
goto done;
}
DEBUG(10, ("fruit_rename: %s -> %s\n",
src_adouble_path, dst_adouble_path));
rc = rename(src_adouble_path, dst_adouble_path);
if (errno == ENOENT) {
rc = 0;
}
TALLOC_FREE(src_adouble_path);
TALLOC_FREE(dst_adouble_path);
done:
return rc;
}
static int fruit_unlink(vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
int rc = -1;
struct fruit_config_data *config = NULL;
char *adp = NULL;
if (!is_ntfs_stream_smb_fname(smb_fname)) {
return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (is_afpinfo_stream(smb_fname)) {
if (config->meta == FRUIT_META_STREAM) {
rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
} else {
rc = SMB_VFS_REMOVEXATTR(handle->conn,
smb_fname->base_name,
AFPINFO_EA_NETATALK);
}
} else if (is_afpresource_stream(smb_fname)) {
if (config->rsrc == FRUIT_RSRC_ADFILE) {
rc = adouble_path(talloc_tos(),
smb_fname->base_name, &adp);
if (rc != 0) {
return -1;
}
/* FIXME: direct unlink(), missing smb_fname */
rc = unlink(adp);
if ((rc == -1) && (errno == ENOENT)) {
rc = 0;
}
} else {
rc = SMB_VFS_REMOVEXATTR(handle->conn,
smb_fname->base_name,
AFPRESOURCE_EA_NETATALK);
}
} else {
rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
}
TALLOC_FREE(adp);
return rc;
}
static int fruit_chmod(vfs_handle_struct *handle,
const char *path,
mode_t mode)
{
int rc = -1;
char *adp = NULL;
struct fruit_config_data *config = NULL;
SMB_STRUCT_STAT sb;
rc = SMB_VFS_NEXT_CHMOD(handle, path, mode);
if (rc != 0) {
return rc;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_XATTR) {
return 0;
}
/* FIXME: direct sys_lstat(), missing smb_fname */
rc = sys_lstat(path, &sb, false);
if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
return rc;
}
rc = adouble_path(talloc_tos(), path, &adp);
if (rc != 0) {
return -1;
}
DEBUG(10, ("fruit_chmod: %s\n", adp));
rc = SMB_VFS_NEXT_CHMOD(handle, adp, mode);
if (errno == ENOENT) {
rc = 0;
}
TALLOC_FREE(adp);
return rc;
}
static int fruit_chown(vfs_handle_struct *handle,
const char *path,
uid_t uid,
gid_t gid)
{
int rc = -1;
char *adp = NULL;
struct fruit_config_data *config = NULL;
SMB_STRUCT_STAT sb;
rc = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
if (rc != 0) {
return rc;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_XATTR) {
return rc;
}
/* FIXME: direct sys_lstat(), missing smb_fname */
rc = sys_lstat(path, &sb, false);
if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
return rc;
}
rc = adouble_path(talloc_tos(), path, &adp);
if (rc != 0) {
goto done;
}
DEBUG(10, ("fruit_chown: %s\n", adp));
rc = SMB_VFS_NEXT_CHOWN(handle, adp, uid, gid);
if (errno == ENOENT) {
rc = 0;
}
done:
TALLOC_FREE(adp);
return rc;
}
static int fruit_rmdir(struct vfs_handle_struct *handle, const char *path)
{
DIR *dh = NULL;
struct dirent *de;
struct fruit_config_data *config;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (!handle->conn->cwd || !path || (config->rsrc == FRUIT_RSRC_XATTR)) {
goto exit_rmdir;
}
/*
* Due to there is no way to change bDeleteVetoFiles variable
* from this module, need to clean up ourselves
*/
dh = opendir(path);
if (dh == NULL) {
goto exit_rmdir;
}
while ((de = readdir(dh)) != NULL) {
if ((strncmp(de->d_name,
ADOUBLE_NAME_PREFIX,
strlen(ADOUBLE_NAME_PREFIX))) == 0) {
char *p = talloc_asprintf(talloc_tos(),
"%s/%s",
path, de->d_name);
if (p == NULL) {
goto exit_rmdir;
}
DEBUG(10, ("fruit_rmdir: delete %s\n", p));
(void)unlink(p);
TALLOC_FREE(p);
}
}
exit_rmdir:
if (dh) {
closedir(dh);
}
return SMB_VFS_NEXT_RMDIR(handle, path);
}
static ssize_t fruit_pread(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
int rc = 0;
struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
handle, fsp);
struct fruit_config_data *config = NULL;
AfpInfo *ai = NULL;
ssize_t len;
char *name = NULL;
char *tmp_base_name = NULL;
NTSTATUS status;
DEBUG(10, ("fruit_pread: offset=%d, size=%d\n", (int)offset, (int)n));
if (!fsp->base_fsp) {
return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
/* fsp_name is not converted with vfs_catia */
tmp_base_name = fsp->base_fsp->fsp_name->base_name;
status = SMB_VFS_TRANSLATE_NAME(handle->conn,
fsp->base_fsp->fsp_name->base_name,
vfs_translate_to_unix,
talloc_tos(), &name);
if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
name = talloc_strdup(talloc_tos(), tmp_base_name);
if (name == NULL) {
rc = -1;
goto exit;
}
} else if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
rc = -1;
goto exit;
}
fsp->base_fsp->fsp_name->base_name = name;
if (ad == NULL) {
len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
if (len == -1) {
rc = -1;
goto exit;
}
goto exit;
}
if (!fruit_fsp_recheck(ad, fsp)) {
rc = -1;
goto exit;
}
if (ad->ad_type == ADOUBLE_META) {
ai = afpinfo_new(talloc_tos());
if (ai == NULL) {
rc = -1;
goto exit;
}
len = ad_read(ad, fsp->base_fsp->fsp_name->base_name);
if (len == -1) {
rc = -1;
goto exit;
}
memcpy(&ai->afpi_FinderInfo[0],
ad_entry(ad, ADEID_FINDERI),
ADEDLEN_FINDERI);
len = afpinfo_pack(ai, data);
if (len != AFP_INFO_SIZE) {
rc = -1;
goto exit;
}
} else {
len = SMB_VFS_NEXT_PREAD(
handle, fsp, data, n,
offset + ad_getentryoff(ad, ADEID_RFORK));
if (len == -1) {
rc = -1;
goto exit;
}
}
exit:
fsp->base_fsp->fsp_name->base_name = tmp_base_name;
TALLOC_FREE(name);
TALLOC_FREE(ai);
if (rc != 0) {
len = -1;
}
DEBUG(10, ("fruit_pread: rc=%d, len=%zd\n", rc, len));
return len;
}
static ssize_t fruit_pwrite(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
int rc = 0;
struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
handle, fsp);
struct fruit_config_data *config = NULL;
AfpInfo *ai = NULL;
ssize_t len;
char *name = NULL;
char *tmp_base_name = NULL;
NTSTATUS status;
DEBUG(10, ("fruit_pwrite: offset=%d, size=%d\n", (int)offset, (int)n));
if (!fsp->base_fsp) {
return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
tmp_base_name = fsp->base_fsp->fsp_name->base_name;
status = SMB_VFS_TRANSLATE_NAME(handle->conn,
fsp->base_fsp->fsp_name->base_name,
vfs_translate_to_unix,
talloc_tos(), &name);
if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
name = talloc_strdup(talloc_tos(), tmp_base_name);
if (name == NULL) {
rc = -1;
goto exit;
}
} else if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
rc = -1;
goto exit;
}
fsp->base_fsp->fsp_name->base_name = name;
if (ad == NULL) {
len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
if (len != n) {
rc = -1;
goto exit;
}
goto exit;
}
if (!fruit_fsp_recheck(ad, fsp)) {
rc = -1;
goto exit;
}
if (ad->ad_type == ADOUBLE_META) {
if (n != AFP_INFO_SIZE || offset != 0) {
DEBUG(1, ("unexpected offset=%jd or size=%jd\n",
(intmax_t)offset, (intmax_t)n));
rc = -1;
goto exit;
}
ai = afpinfo_unpack(talloc_tos(), data);
if (ai == NULL) {
rc = -1;
goto exit;
}
memcpy(ad_entry(ad, ADEID_FINDERI),
&ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
rc = ad_write(ad, name);
} else {
len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
offset + ad_getentryoff(ad, ADEID_RFORK));
if (len != n) {
rc = -1;
goto exit;
}
if (config->rsrc == FRUIT_RSRC_ADFILE) {
rc = ad_read(ad, name);
if (rc == -1) {
goto exit;
}
rc = 0;
if ((len + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
ad_setentrylen(ad, ADEID_RFORK, len + offset);
rc = ad_write(ad, name);
}
}
}
exit:
fsp->base_fsp->fsp_name->base_name = tmp_base_name;
TALLOC_FREE(name);
TALLOC_FREE(ai);
if (rc != 0) {
return -1;
}
return n;
}
/**
* Helper to stat/lstat the base file of an smb_fname.
*/
static int fruit_stat_base(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
char *tmp_stream_name;
int rc;
tmp_stream_name = smb_fname->stream_name;
smb_fname->stream_name = NULL;
if (follow_links) {
rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
} else {
rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
smb_fname->stream_name = tmp_stream_name;
return rc;
}
static int fruit_stat_meta(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
/* Populate the stat struct with info from the base file. */
if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
return -1;
}
smb_fname->st.st_ex_size = AFP_INFO_SIZE;
smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
smb_fname->stream_name);
return 0;
}
static int fruit_stat_rsrc(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
struct adouble *ad = NULL;
DEBUG(10, ("fruit_stat_rsrc called for %s\n",
smb_fname_str_dbg(smb_fname)));
ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_RSRC);
if (ad == NULL) {
errno = ENOENT;
return -1;
}
/* Populate the stat struct with info from the base file. */
if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
TALLOC_FREE(ad);
return -1;
}
smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
smb_fname->stream_name);
TALLOC_FREE(ad);
return 0;
}
static int fruit_stat(vfs_handle_struct *handle,
struct smb_filename *smb_fname)
{
int rc = -1;
DEBUG(10, ("fruit_stat called for %s\n",
smb_fname_str_dbg(smb_fname)));
if (!is_ntfs_stream_smb_fname(smb_fname)
|| is_ntfs_default_stream_smb_fname(smb_fname)) {
rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
if (rc == 0) {
update_btime(handle, smb_fname);
}
return rc;
}
/*
* Note if lp_posix_paths() is true, we can never
* get here as is_ntfs_stream_smb_fname() is
* always false. So we never need worry about
* not following links here.
*/
if (is_afpinfo_stream(smb_fname)) {
rc = fruit_stat_meta(handle, smb_fname, true);
} else if (is_afpresource_stream(smb_fname)) {
rc = fruit_stat_rsrc(handle, smb_fname, true);
} else {
return SMB_VFS_NEXT_STAT(handle, smb_fname);
}
if (rc == 0) {
update_btime(handle, smb_fname);
smb_fname->st.st_ex_mode &= ~S_IFMT;
smb_fname->st.st_ex_mode |= S_IFREG;
smb_fname->st.st_ex_blocks =
smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
}
return rc;
}
static int fruit_lstat(vfs_handle_struct *handle,
struct smb_filename *smb_fname)
{
int rc = -1;
DEBUG(10, ("fruit_lstat called for %s\n",
smb_fname_str_dbg(smb_fname)));
if (!is_ntfs_stream_smb_fname(smb_fname)
|| is_ntfs_default_stream_smb_fname(smb_fname)) {
rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
if (rc == 0) {
update_btime(handle, smb_fname);
}
return rc;
}
if (is_afpinfo_stream(smb_fname)) {
rc = fruit_stat_meta(handle, smb_fname, false);
} else if (is_afpresource_stream(smb_fname)) {
rc = fruit_stat_rsrc(handle, smb_fname, false);
} else {
return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
if (rc == 0) {
update_btime(handle, smb_fname);
smb_fname->st.st_ex_mode &= ~S_IFMT;
smb_fname->st.st_ex_mode |= S_IFREG;
smb_fname->st.st_ex_blocks =
smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
}
return rc;
}
static int fruit_fstat_meta(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
DEBUG(10, ("fruit_fstat_meta called for %s\n",
smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
/* Populate the stat struct with info from the base file. */
if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
return -1;
}
*sbuf = fsp->base_fsp->fsp_name->st;
sbuf->st_ex_size = AFP_INFO_SIZE;
sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
return 0;
}
static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
struct fruit_config_data *config;
struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
handle, fsp);
DEBUG(10, ("fruit_fstat_rsrc called for %s\n",
smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_STREAM) {
return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
}
/* Populate the stat struct with info from the base file. */
if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
return -1;
}
*sbuf = fsp->base_fsp->fsp_name->st;
sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
DEBUG(10, ("fruit_fstat_rsrc %s, size: %zd\n",
smb_fname_str_dbg(fsp->fsp_name),
(ssize_t)sbuf->st_ex_size));
return 0;
}
static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
int rc;
char *name = NULL;
char *tmp_base_name = NULL;
NTSTATUS status;
struct adouble *ad = (struct adouble *)
VFS_FETCH_FSP_EXTENSION(handle, fsp);
DEBUG(10, ("fruit_fstat called for %s\n",
smb_fname_str_dbg(fsp->fsp_name)));
if (fsp->base_fsp) {
tmp_base_name = fsp->base_fsp->fsp_name->base_name;
/* fsp_name is not converted with vfs_catia */
status = SMB_VFS_TRANSLATE_NAME(
handle->conn,
fsp->base_fsp->fsp_name->base_name,
vfs_translate_to_unix,
talloc_tos(), &name);
if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
name = talloc_strdup(talloc_tos(), tmp_base_name);
if (name == NULL) {
rc = -1;
goto exit;
}
} else if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
rc = -1;
goto exit;
}
fsp->base_fsp->fsp_name->base_name = name;
}
if (ad == NULL || fsp->base_fsp == NULL) {
rc = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
goto exit;
}
if (!fruit_fsp_recheck(ad, fsp)) {
rc = -1;
goto exit;
}
switch (ad->ad_type) {
case ADOUBLE_META:
rc = fruit_fstat_meta(handle, fsp, sbuf);
break;
case ADOUBLE_RSRC:
rc = fruit_fstat_rsrc(handle, fsp, sbuf);
break;
default:
DEBUG(10, ("fruit_fstat %s: bad type\n",
smb_fname_str_dbg(fsp->fsp_name)));
rc = -1;
goto exit;
}
if (rc == 0) {
sbuf->st_ex_mode &= ~S_IFMT;
sbuf->st_ex_mode |= S_IFREG;
sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
}
exit:
DEBUG(10, ("fruit_fstat %s, size: %zd\n",
smb_fname_str_dbg(fsp->fsp_name),
(ssize_t)sbuf->st_ex_size));
if (tmp_base_name) {
fsp->base_fsp->fsp_name->base_name = tmp_base_name;
}
TALLOC_FREE(name);
return rc;
}
static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
struct files_struct *fsp,
const char *fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct fruit_config_data *config = NULL;
struct smb_filename *smb_fname = NULL;
struct adouble *ad = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
DEBUG(10, ("fruit_streaminfo called for %s\n", fname));
smb_fname = synthetic_smb_fname(talloc_tos(), fname, NULL, NULL);
if (smb_fname == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (config->meta == FRUIT_META_NETATALK) {
ad = ad_get(talloc_tos(), handle,
smb_fname->base_name, ADOUBLE_META);
if (ad && !empty_finderinfo(ad)) {
if (!add_fruit_stream(
mem_ctx, pnum_streams, pstreams,
AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
smb_roundup(handle->conn,
AFP_INFO_SIZE))) {
TALLOC_FREE(ad);
TALLOC_FREE(smb_fname);
return NT_STATUS_NO_MEMORY;
}
}
TALLOC_FREE(ad);
}
if (config->rsrc != FRUIT_RSRC_STREAM) {
ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
ADOUBLE_RSRC);
if (ad) {
if (!add_fruit_stream(
mem_ctx, pnum_streams, pstreams,
AFPRESOURCE_STREAM_NAME,
ad_getentrylen(ad, ADEID_RFORK),
smb_roundup(handle->conn,
ad_getentrylen(
ad, ADEID_RFORK)))) {
TALLOC_FREE(ad);
TALLOC_FREE(smb_fname);
return NT_STATUS_NO_MEMORY;
}
}
TALLOC_FREE(ad);
}
TALLOC_FREE(smb_fname);
return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx,
pnum_streams, pstreams);
}
static int fruit_ntimes(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
struct smb_file_time *ft)
{
int rc = 0;
struct adouble *ad = NULL;
if (null_timespec(ft->create_time)) {
goto exit;
}
DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
time_to_asc(convert_timespec_to_time_t(ft->create_time))));
ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
if (ad == NULL) {
goto exit;
}
ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
convert_time_t_to_uint32_t(ft->create_time.tv_sec));
rc = ad_write(ad, smb_fname->base_name);
exit:
TALLOC_FREE(ad);
if (rc != 0) {
DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
return -1;
}
return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
}
static int fruit_fallocate(struct vfs_handle_struct *handle,
struct files_struct *fsp,
enum vfs_fallocate_mode mode,
off_t offset,
off_t len)
{
struct adouble *ad =
(struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
if (ad == NULL) {
return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
}
if (!fruit_fsp_recheck(ad, fsp)) {
return -1;
}
/* Let the pwrite code path handle it. */
errno = ENOSYS;
return -1;
}
static int fruit_ftruncate(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
int rc = 0;
struct adouble *ad =
(struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
struct fruit_config_data *config;
DEBUG(10, ("streams_xattr_ftruncate called for file %s offset %.0f\n",
fsp_str_dbg(fsp), (double)offset));
if (ad == NULL) {
return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
}
if (!fruit_fsp_recheck(ad, fsp)) {
return -1;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (ad->ad_type) {
case ADOUBLE_META:
/*
* As this request hasn't been seen in the wild,
* the only sensible use I can imagine is the client
* truncating the stream to 0 bytes size.
* We simply remove the metadata on such a request.
*/
if (offset == 0) {
rc = SMB_VFS_FREMOVEXATTR(fsp,
AFPRESOURCE_EA_NETATALK);
}
break;
case ADOUBLE_RSRC:
if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
rc = SMB_VFS_FREMOVEXATTR(fsp,
AFPRESOURCE_EA_NETATALK);
} else {
rc = SMB_VFS_NEXT_FTRUNCATE(
handle, fsp,
offset + ad_getentryoff(ad, ADEID_RFORK));
if (rc != 0) {
return -1;
}
ad_setentrylen(ad, ADEID_RFORK, offset);
rc = ad_write(ad, NULL);
if (rc != 0) {
return -1;
}
}
break;
default:
return -1;
}
return rc;
}
static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
struct smb_request *req,
uint16_t root_dir_fid,
struct smb_filename *smb_fname,
uint32_t access_mask,
uint32_t share_access,
uint32_t create_disposition,
uint32_t create_options,
uint32_t file_attributes,
uint32_t oplock_request,
struct smb2_lease *lease,
uint64_t allocation_size,
uint32_t private_flags,
struct security_descriptor *sd,
struct ea_list *ea_list,
files_struct **result,
int *pinfo,
const struct smb2_create_blobs *in_context_blobs,
struct smb2_create_blobs *out_context_blobs)
{
NTSTATUS status;
struct fruit_config_data *config = NULL;
status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
status = SMB_VFS_NEXT_CREATE_FILE(
handle, req, root_dir_fid, smb_fname,
access_mask, share_access,
create_disposition, create_options,
file_attributes, oplock_request,
lease,
allocation_size, private_flags,
sd, ea_list, result,
pinfo, in_context_blobs, out_context_blobs);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (is_ntfs_stream_smb_fname(smb_fname)
|| (*result == NULL)
|| ((*result)->is_directory)) {
return status;
}
if (config->locking == FRUIT_LOCKING_NETATALK) {
status = fruit_check_access(
handle, *result,
access_mask,
map_share_mode_to_deny_mode(share_access, 0));
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
}
return status;
fail:
DEBUG(1, ("fruit_create_file: %s\n", nt_errstr(status)));
if (*result) {
close_file(req, *result, ERROR_CLOSE);
*result = NULL;
}
return status;
}
static NTSTATUS fruit_readdir_attr(struct vfs_handle_struct *handle,
const struct smb_filename *fname,
TALLOC_CTX *mem_ctx,
struct readdir_attr_data **pattr_data)
{
struct fruit_config_data *config = NULL;
struct readdir_attr_data *attr_data;
NTSTATUS status;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
if (!config->use_aapl) {
return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
}
DEBUG(10, ("fruit_readdir_attr %s\n", fname->base_name));
*pattr_data = talloc_zero(mem_ctx, struct readdir_attr_data);
if (*pattr_data == NULL) {
return NT_STATUS_UNSUCCESSFUL;
}
attr_data = *pattr_data;
attr_data->type = RDATTR_AAPL;
/*
* Mac metadata: compressed FinderInfo, resource fork length
* and creation date
*/
status = readdir_attr_macmeta(handle, fname, attr_data);
if (!NT_STATUS_IS_OK(status)) {
/*
* Error handling is tricky: if we return failure from
* this function, the corresponding directory entry
* will to be passed to the client, so we really just
* want to error out on fatal errors.
*/
if (!NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
goto fail;
}
}
/*
* UNIX mode
*/
if (config->unix_info_enabled) {
attr_data->attr_data.aapl.unix_mode = fname->st.st_ex_mode;
}
/*
* max_access
*/
if (!config->readdir_attr_max_access) {
attr_data->attr_data.aapl.max_access = FILE_GENERIC_ALL;
} else {
status = smbd_calculate_access_mask(
handle->conn,
fname,
false,
SEC_FLAG_MAXIMUM_ALLOWED,
&attr_data->attr_data.aapl.max_access);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
}
return NT_STATUS_OK;
fail:
DEBUG(1, ("fruit_readdir_attr %s, error: %s\n",
fname->base_name, nt_errstr(status)));
TALLOC_FREE(*pattr_data);
return status;
}
static NTSTATUS fruit_fget_nt_acl(vfs_handle_struct *handle,
files_struct *fsp,
uint32 security_info,
TALLOC_CTX *mem_ctx,
struct security_descriptor **ppdesc)
{
NTSTATUS status;
struct security_ace ace;
struct dom_sid sid;
struct fruit_config_data *config;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
mem_ctx, ppdesc);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/*
* Add MS NFS style ACEs with uid, gid and mode
*/
if (!config->unix_info_enabled) {
return NT_STATUS_OK;
}
/* MS NFS style mode */
sid_compose(&sid, &global_sid_Unix_NFS_Mode, fsp->fsp_name->st.st_ex_mode);
init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
status = security_descriptor_dacl_add(*ppdesc, &ace);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1,("failed to add MS NFS style ACE\n"));
return status;
}
/* MS NFS style uid */
sid_compose(&sid, &global_sid_Unix_NFS_Users, fsp->fsp_name->st.st_ex_uid);
init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
status = security_descriptor_dacl_add(*ppdesc, &ace);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1,("failed to add MS NFS style ACE\n"));
return status;
}
/* MS NFS style gid */
sid_compose(&sid, &global_sid_Unix_NFS_Groups, fsp->fsp_name->st.st_ex_gid);
init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
status = security_descriptor_dacl_add(*ppdesc, &ace);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1,("failed to add MS NFS style ACE\n"));
return status;
}
return NT_STATUS_OK;
}
static NTSTATUS fruit_fset_nt_acl(vfs_handle_struct *handle,
files_struct *fsp,
uint32 security_info_sent,
const struct security_descriptor *psd)
{
NTSTATUS status;
bool do_chmod;
mode_t ms_nfs_mode;
int result;
DEBUG(1, ("fruit_fset_nt_acl: %s\n", fsp_str_dbg(fsp)));
status = check_ms_nfs(handle, fsp, psd, &ms_nfs_mode, &do_chmod);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("fruit_fset_nt_acl: check_ms_nfs failed%s\n", fsp_str_dbg(fsp)));
return status;
}
status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("fruit_fset_nt_acl: SMB_VFS_NEXT_FSET_NT_ACL failed%s\n", fsp_str_dbg(fsp)));
return status;
}
if (do_chmod) {
if (fsp->fh->fd != -1) {
DEBUG(1, ("fchmod: %s\n", fsp_str_dbg(fsp)));
result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
} else {
DEBUG(1, ("chmod: %s\n", fsp_str_dbg(fsp)));
result = SMB_VFS_CHMOD(fsp->conn,
fsp->fsp_name->base_name,
ms_nfs_mode);
}
if (result != 0) {
DEBUG(1, ("chmod: %s, result: %d, %04o error %s\n", fsp_str_dbg(fsp),
result, ms_nfs_mode, strerror(errno)));
status = map_nt_error_from_unix(errno);
return status;
}
}
return NT_STATUS_OK;
}
static struct vfs_fn_pointers vfs_fruit_fns = {
.connect_fn = fruit_connect,
/* File operations */
.chmod_fn = fruit_chmod,
.chown_fn = fruit_chown,
.unlink_fn = fruit_unlink,
.rename_fn = fruit_rename,
.rmdir_fn = fruit_rmdir,
.open_fn = fruit_open,
.pread_fn = fruit_pread,
.pwrite_fn = fruit_pwrite,
.stat_fn = fruit_stat,
.lstat_fn = fruit_lstat,
.fstat_fn = fruit_fstat,
.streaminfo_fn = fruit_streaminfo,
.ntimes_fn = fruit_ntimes,
.ftruncate_fn = fruit_ftruncate,
.fallocate_fn = fruit_fallocate,
.create_file_fn = fruit_create_file,
.readdir_attr_fn = fruit_readdir_attr,
/* NT ACL operations */
.fget_nt_acl_fn = fruit_fget_nt_acl,
.fset_nt_acl_fn = fruit_fset_nt_acl,
};
NTSTATUS vfs_fruit_init(void);
NTSTATUS vfs_fruit_init(void)
{
NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
&vfs_fruit_fns);
if (!NT_STATUS_IS_OK(ret)) {
return ret;
}
vfs_fruit_debug_level = debug_add_class("fruit");
if (vfs_fruit_debug_level == -1) {
vfs_fruit_debug_level = DBGC_VFS;
DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
"vfs_fruit_init"));
} else {
DEBUG(10, ("%s: Debug class number of '%s': %d\n",
"vfs_fruit_init","fruit",vfs_fruit_debug_level));
}
return ret;
}
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