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samba-mirror/source3/modules/vfs_fruit.c
Jeremy Allison 5c909ea453 s3: smbd: Fruit. Make the use of dom_sid_compare_domain() much clearer. 
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13319

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2018-03-21 13:11:14 +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/util/sys_rw.h"
#include "lib/util/tevent_ntstatus.h"
#include "lib/util/tevent_unix.h"
#include "offload_token.h"
#include "string_replace.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.resource".
*
*
* 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;
static struct global_fruit_config {
bool nego_aapl; /* client negotiated AAPL */
} global_fruit_config;
#undef DBGC_CLASS
#define DBGC_CLASS vfs_fruit_debug_level
#define FRUIT_PARAM_TYPE_NAME "fruit"
#define ADOUBLE_NAME_PREFIX "._"
#define NETATALK_META_XATTR "org.netatalk.Metadata"
#define NETATALK_RSRC_XATTR "org.netatalk.ResourceFork"
#if defined(HAVE_ATTROPEN)
#define AFPINFO_EA_NETATALK NETATALK_META_XATTR
#define AFPRESOURCE_EA_NETATALK NETATALK_RSRC_XATTR
#else
#define AFPINFO_EA_NETATALK "user." NETATALK_META_XATTR
#define AFPRESOURCE_EA_NETATALK "user." NETATALK_RSRC_XATTR
#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; /* config from smb.conf */
bool use_copyfile;
bool readdir_attr_enabled;
bool unix_info_enabled;
bool copyfile_enabled;
bool veto_appledouble;
bool posix_rename;
bool aapl_zero_file_id;
const char *model;
bool time_machine;
off_t time_machine_max_size;
/*
* Additional 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}
};
static const char *fruit_catia_maps =
"0x01:0xf001,0x02:0xf002,0x03:0xf003,0x04:0xf004,"
"0x05:0xf005,0x06:0xf006,0x07:0xf007,0x08:0xf008,"
"0x09:0xf009,0x0a:0xf00a,0x0b:0xf00b,0x0c:0xf00c,"
"0x0d:0xf00d,0x0e:0xf00e,0x0f:0xf00f,0x10:0xf010,"
"0x11:0xf011,0x12:0xf012,0x13:0xf013,0x14:0xf014,"
"0x15:0xf015,0x16:0xf016,0x17:0xf017,0x18:0xf018,"
"0x19:0xf019,0x1a:0xf01a,0x1b:0xf01b,0x1c:0xf01c,"
"0x1d:0xf01d,0x1e:0xf01e,0x1f:0xf01f,"
"0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
"0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
"0x0d:0xf00d";
/*****************************************************************************
* 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)
#define AD_XATTR_HDR_MAGIC 0x41545452 /* 'ATTR' */
#define AD_XATTR_MAX_ENTRIES 1024 /* Some arbitrarily enforced limit */
#define AD_XATTR_HDR_SIZE 36
#define AD_XATTR_MAX_HDR_SIZE 65536
/* 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))
/*
* Both struct ad_xattr_header and struct ad_xattr_entry describe the in memory
* representation as well as the on-disk format.
*
* The ad_xattr_header follows the FinderInfo data in the FinderInfo entry if
* the length of the FinderInfo entry is larger then 32 bytes. It is then
* preceeded with 2 bytes padding.
*
* Cf: https://opensource.apple.com/source/xnu/xnu-4570.1.46/bsd/vfs/vfs_xattr.c
*/
struct ad_xattr_header {
uint32_t adx_magic; /* ATTR_HDR_MAGIC */
uint32_t adx_debug_tag; /* for debugging == file id of owning file */
uint32_t adx_total_size; /* file offset of end of attribute header + entries + data */
uint32_t adx_data_start; /* file offset to attribute data area */
uint32_t adx_data_length; /* length of attribute data area */
uint32_t adx_reserved[3];
uint16_t adx_flags;
uint16_t adx_num_attrs;
};
/* On-disk entries are aligned on 4 byte boundaries */
struct ad_xattr_entry {
uint32_t adx_offset; /* file offset to data */
uint32_t adx_length; /* size of attribute data */
uint16_t adx_flags;
uint8_t adx_namelen; /* included the NULL terminator */
char *adx_name; /* NULL-terminated UTF-8 name */
};
struct ad_entry {
size_t ade_off;
size_t ade_len;
};
struct adouble {
vfs_handle_struct *ad_handle;
int ad_fd;
bool ad_opened;
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_xattr_header adx_header;
struct ad_xattr_entry *adx_entries;
};
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 resource 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 resource fork xattr. The xattr
* isn't an AppleDouble file, it simply contains the resource 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
};
struct fio {
/* tcon config handle */
struct fruit_config_data *config;
/* Denote stream type, meta or rsrc */
adouble_type_t type;
};
/*
* Forward declarations
*/
static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
adouble_type_t type);
static int ad_set(struct adouble *ad, const struct smb_filename *smb_fname);
static int ad_fset(struct adouble *ad, files_struct *fsp);
static int adouble_path(TALLOC_CTX *ctx,
const struct smb_filename *smb_fname__in,
struct smb_filename **ppsmb_fname_out);
static AfpInfo *afpinfo_new(TALLOC_CTX *ctx);
static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf);
static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data);
/**
* Return a pointer to an AppleDouble entry
*
* Returns NULL if the entry is not present
**/
static char *ad_get_entry(const struct adouble *ad, int eid)
{
off_t off = ad_getentryoff(ad, eid);
size_t len = ad_getentrylen(ad, eid);
if (off == 0 || len == 0) {
return NULL;
}
return ad->ad_data + off;
}
/**
* Get a date
**/
static int ad_getdate(const struct adouble *ad,
unsigned int dateoff,
uint32_t *date)
{
bool xlate = (dateoff & AD_DATE_UNIX);
char *p = NULL;
dateoff &= AD_DATE_MASK;
p = ad_get_entry(ad, ADEID_FILEDATESI);
if (p == NULL) {
return -1;
}
if (dateoff > AD_DATE_ACCESS) {
return -1;
}
memcpy(date, p + 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);
char *p = NULL;
p = ad_get_entry(ad, ADEID_FILEDATESI);
if (p == NULL) {
return -1;
}
dateoff &= AD_DATE_MASK;
if (xlate) {
date = AD_DATE_FROM_UNIX(date);
}
if (dateoff > AD_DATE_ACCESS) {
return -1;
}
memcpy(p + 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 (bufsize < AD_DATASZ_DOT_UND) {
DBG_ERR("bad buffer size [0x%" PRIx32 "]\n", bufsize);
return false;
}
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 true;
}
static bool ad_unpack_xattrs(struct adouble *ad)
{
struct ad_xattr_header *h = &ad->adx_header;
const char *p = ad->ad_data;
uint32_t hoff;
uint32_t i;
if (ad_getentrylen(ad, ADEID_FINDERI) <= ADEDLEN_FINDERI) {
return true;
}
/* 2 bytes padding */
hoff = ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI + 2;
h->adx_magic = RIVAL(p, hoff + 0);
h->adx_debug_tag = RIVAL(p, hoff + 4); /* Not used -> not checked */
h->adx_total_size = RIVAL(p, hoff + 8);
h->adx_data_start = RIVAL(p, hoff + 12);
h->adx_data_length = RIVAL(p, hoff + 16);
h->adx_flags = RSVAL(p, hoff + 32); /* Not used -> not checked */
h->adx_num_attrs = RSVAL(p, hoff + 34);
if (h->adx_magic != AD_XATTR_HDR_MAGIC) {
DBG_ERR("Bad magic: 0x%" PRIx32 "\n", h->adx_magic);
return false;
}
if (h->adx_total_size > ad_getentryoff(ad, ADEID_RFORK)) {
DBG_ERR("Bad total size: 0x%" PRIx32 "\n", h->adx_total_size);
return false;
}
if (h->adx_total_size > AD_XATTR_MAX_HDR_SIZE) {
DBG_ERR("Bad total size: 0x%" PRIx32 "\n", h->adx_total_size);
return false;
}
if (h->adx_data_start < (hoff + AD_XATTR_HDR_SIZE)) {
DBG_ERR("Bad start: 0x%" PRIx32 "\n", h->adx_data_start);
return false;
}
if ((h->adx_data_start + h->adx_data_length) < h->adx_data_start) {
DBG_ERR("Bad length: %" PRIu32 "\n", h->adx_data_length);
return false;
}
if ((h->adx_data_start + h->adx_data_length) >
ad->adx_header.adx_total_size)
{
DBG_ERR("Bad length: %" PRIu32 "\n", h->adx_data_length);
return false;
}
if (h->adx_num_attrs > AD_XATTR_MAX_ENTRIES) {
DBG_ERR("Bad num xattrs: %" PRIu16 "\n", h->adx_num_attrs);
return false;
}
if (h->adx_num_attrs == 0) {
return true;
}
ad->adx_entries = talloc_zero_array(
ad, struct ad_xattr_entry, h->adx_num_attrs);
if (ad->adx_entries == NULL) {
return false;
}
hoff += AD_XATTR_HDR_SIZE;
for (i = 0; i < h->adx_num_attrs; i++) {
struct ad_xattr_entry *e = &ad->adx_entries[i];
hoff = (hoff + 3) & ~3;
e->adx_offset = RIVAL(p, hoff + 0);
e->adx_length = RIVAL(p, hoff + 4);
e->adx_flags = RSVAL(p, hoff + 8);
e->adx_namelen = *(p + hoff + 10);
if (e->adx_offset >= ad->adx_header.adx_total_size) {
DBG_ERR("Bad adx_offset: %" PRIx32 "\n",
e->adx_offset);
return false;
}
if ((e->adx_offset + e->adx_length) < e->adx_offset) {
DBG_ERR("Bad adx_length: %" PRIx32 "\n",
e->adx_length);
return false;
}
if ((e->adx_offset + e->adx_length) >
ad->adx_header.adx_total_size)
{
DBG_ERR("Bad adx_length: %" PRIx32 "\n",
e->adx_length);
return false;
}
if (e->adx_namelen == 0) {
DBG_ERR("Bad adx_namelen: %" PRIx32 "\n",
e->adx_namelen);
return false;
}
if ((hoff + 11 + e->adx_namelen) < hoff + 11) {
DBG_ERR("Bad adx_namelen: %" PRIx32 "\n",
e->adx_namelen);
return false;
}
if ((hoff + 11 + e->adx_namelen) >
ad->adx_header.adx_data_start)
{
DBG_ERR("Bad adx_namelen: %" PRIx32 "\n",
e->adx_namelen);
return false;
}
e->adx_name = talloc_strndup(ad->adx_entries,
p + hoff + 11,
e->adx_namelen);
if (e->adx_name == NULL) {
return false;
}
DBG_DEBUG("xattr [%s] offset [0x%x] size [0x%x]\n",
e->adx_name, e->adx_offset, e->adx_length);
dump_data(10, (uint8_t *)(ad->ad_data + e->adx_offset),
e->adx_length);
hoff += 11 + e->adx_namelen;
}
return true;
}
/**
* Unpack an AppleDouble blob into a struct adoble
**/
static bool ad_unpack(struct adouble *ad, const size_t nentries,
size_t filesize)
{
size_t bufsize = talloc_get_size(ad->ad_data);
size_t adentries, i;
uint32_t eid, len, off;
bool ok;
/*
* 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: %zu\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;
}
/*
* All entries other than the resource fork are
* expected to be read into the ad_data buffer, so
* ensure the specified offset is within that bound
*/
if ((off > bufsize) && (eid != ADEID_RFORK)) {
DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
eid, off, len));
return false;
}
/*
* All entries besides FinderInfo and resource fork
* must fit into the buffer. FinderInfo is special as
* it may be larger then the default 32 bytes (if it
* contains marshalled xattrs), but we will fixup that
* in ad_convert(). And the resource fork is never
* accessed directly by the ad_data buf (also see
* comment above) anyway.
*/
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;
}
/*
* That would be obviously broken
*/
if (off > filesize) {
DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
eid, off, len));
return false;
}
/*
* Check for any entry that has its end beyond the
* filesize.
*/
if (off + len < off) {
DEBUG(1, ("offset wrap in eid %d: off: %" PRIu32
", len: %" PRIu32 "\n",
eid, off, len));
return false;
}
if (off + len > filesize) {
/*
* If this is the resource fork entry, we fix
* up the length, for any other entry we bail
* out.
*/
if (eid != ADEID_RFORK) {
DEBUG(1, ("bogus eid %d: off: %" PRIu32
", len: %" PRIu32 "\n",
eid, off, len));
return false;
}
/*
* Fixup the resource fork entry by limiting
* the size to entryoffset - filesize.
*/
len = filesize - off;
DEBUG(1, ("Limiting ADEID_RFORK: off: %" PRIu32
", len: %" PRIu32 "\n", off, len));
}
ad->ad_eid[eid].ade_off = off;
ad->ad_eid[eid].ade_len = len;
}
ok = ad_unpack_xattrs(ad);
if (!ok) {
return false;
}
return true;
}
static bool ad_convert_xattr(struct adouble *ad,
const struct smb_filename *smb_fname,
char *map)
{
static struct char_mappings **string_replace_cmaps = NULL;
uint16_t i;
int saved_errno = 0;
NTSTATUS status;
if (ad->adx_header.adx_num_attrs == 0) {
return true;
}
if (string_replace_cmaps == NULL) {
const char **mappings = NULL;
mappings = str_list_make_v3_const(
talloc_tos(), fruit_catia_maps, NULL);
if (mappings == NULL) {
return false;
}
string_replace_cmaps = string_replace_init_map(mappings);
TALLOC_FREE(mappings);
}
for (i = 0; i < ad->adx_header.adx_num_attrs; i++) {
struct ad_xattr_entry *e = &ad->adx_entries[i];
char *mapped_name = NULL;
char *tmp = NULL;
struct smb_filename *stream_name = NULL;
files_struct *fsp = NULL;
ssize_t nwritten;
status = string_replace_allocate(ad->ad_handle->conn,
e->adx_name,
string_replace_cmaps,
talloc_tos(),
&mapped_name,
vfs_translate_to_windows);
if (!NT_STATUS_IS_OK(status) &&
!NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED))
{
DBG_ERR("string_replace_allocate failed\n");
return -1;
}
tmp = mapped_name;
mapped_name = talloc_asprintf(talloc_tos(), ":%s", tmp);
TALLOC_FREE(tmp);
if (mapped_name == NULL) {
return -1;
}
stream_name = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
mapped_name,
NULL,
smb_fname->flags);
TALLOC_FREE(mapped_name);
if (stream_name == NULL) {
DBG_ERR("synthetic_smb_fname failed\n");
return -1;
}
DBG_DEBUG("stream_name: %s\n", smb_fname_str_dbg(stream_name));
status = SMB_VFS_CREATE_FILE(
ad->ad_handle->conn, /* conn */
NULL, /* req */
0, /* root_dir_fid */
stream_name, /* fname */
FILE_GENERIC_WRITE, /* access_mask */
FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
FILE_OPEN_IF, /* create_disposition */
0, /* create_options */
0, /* file_attributes */
INTERNAL_OPEN_ONLY, /* oplock_request */
NULL, /* lease */
0, /* allocation_size */
0, /* private_flags */
NULL, /* sd */
NULL, /* ea_list */
&fsp, /* result */
NULL, /* psbuf */
NULL, NULL); /* create context */
TALLOC_FREE(stream_name);
if (!NT_STATUS_IS_OK(status)) {
DBG_ERR("SMB_VFS_CREATE_FILE failed\n");
return -1;
}
nwritten = SMB_VFS_PWRITE(fsp,
map + e->adx_offset,
e->adx_length,
0);
if (nwritten == -1) {
DBG_ERR("SMB_VFS_PWRITE failed\n");
saved_errno = errno;
close_file(NULL, fsp, ERROR_CLOSE);
errno = saved_errno;
return -1;
}
status = close_file(NULL, fsp, NORMAL_CLOSE);
if (!NT_STATUS_IS_OK(status)) {
return -1;
}
fsp = NULL;
}
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 occurred, 0 if no conversion was done, 1
* otherwise
**/
static int ad_convert(struct adouble *ad,
const struct smb_filename *smb_fname,
int fd)
{
int rc = 0;
char *map = MAP_FAILED;
size_t origlen;
bool ok;
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;
}
ok = ad_convert_xattr(ad, smb_fname, map);
if (!ok) {
munmap(map, origlen);
return -1;
}
if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
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_read_meta(struct adouble *ad,
const struct smb_filename *smb_fname)
{
int rc = 0;
ssize_t ealen;
bool ok;
DEBUG(10, ("reading meta xattr for %s\n", smb_fname->base_name));
ealen = SMB_VFS_GETXATTR(ad->ad_handle->conn, smb_fname,
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, AD_DATASZ_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",
smb_fname->base_name, rc));
if (rc != 0) {
ealen = -1;
if (errno == EINVAL) {
become_root();
removexattr(smb_fname->base_name, AFPINFO_EA_NETATALK);
unbecome_root();
errno = ENOENT;
}
}
return ealen;
}
static int ad_open_rsrc_xattr(const struct smb_filename *smb_fname,
int flags,
mode_t mode)
{
#ifdef HAVE_ATTROPEN
/* FIXME: direct Solaris xattr syscall */
return attropen(smb_fname->base_name,
AFPRESOURCE_EA_NETATALK, flags, mode);
#else
errno = ENOSYS;
return -1;
#endif
}
static int ad_open_rsrc_adouble(const struct smb_filename *smb_fname,
int flags,
mode_t mode)
{
int ret;
int fd;
struct smb_filename *adp_smb_fname = NULL;
ret = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
if (ret != 0) {
return -1;
}
fd = open(adp_smb_fname->base_name, flags, mode);
TALLOC_FREE(adp_smb_fname);
return fd;
}
static int ad_open_rsrc(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
int flags,
mode_t mode)
{
struct fruit_config_data *config = NULL;
int fd;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_XATTR) {
fd = ad_open_rsrc_xattr(smb_fname, flags, mode);
} else {
fd = ad_open_rsrc_adouble(smb_fname, flags, mode);
}
return fd;
}
/*
* Here's the deal: for ADOUBLE_META we can do without an fd as we can issue
* path based xattr calls. For ADOUBLE_RSRC however we need a full-fledged fd
* for file IO on the ._ file.
*/
static int ad_open(vfs_handle_struct *handle,
struct adouble *ad,
files_struct *fsp,
const struct smb_filename *smb_fname,
int flags,
mode_t mode)
{
int fd;
DBG_DEBUG("Path [%s] type [%s]\n", smb_fname->base_name,
ad->ad_type == ADOUBLE_META ? "meta" : "rsrc");
if (ad->ad_type == ADOUBLE_META) {
return 0;
}
if ((fsp != NULL) && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
ad->ad_fd = fsp->fh->fd;
ad->ad_opened = false;
return 0;
}
fd = ad_open_rsrc(handle, smb_fname, flags, mode);
if (fd == -1) {
return -1;
}
ad->ad_opened = true;
ad->ad_fd = fd;
DBG_DEBUG("Path [%s] type [%s] fd [%d]\n",
smb_fname->base_name,
ad->ad_type == ADOUBLE_META ? "meta" : "rsrc", fd);
return 0;
}
static ssize_t ad_read_rsrc_xattr(struct adouble *ad)
{
int ret;
SMB_STRUCT_STAT st;
/* FIXME: direct sys_fstat(), don't have an fsp */
ret = sys_fstat(ad->ad_fd, &st,
lp_fake_directory_create_times(
SNUM(ad->ad_handle->conn)));
if (ret != 0) {
return -1;
}
ad_setentrylen(ad, ADEID_RFORK, st.st_ex_size);
return st.st_ex_size;
}
static ssize_t ad_read_rsrc_adouble(struct adouble *ad,
const struct smb_filename *smb_fname)
{
SMB_STRUCT_STAT sbuf;
char *p_ad = NULL;
AfpInfo *ai = NULL;
DATA_BLOB aiblob;
struct smb_filename *stream_name = NULL;
files_struct *fsp = NULL;
ssize_t len;
size_t size;
ssize_t nwritten;
NTSTATUS status;
int saved_errno = 0;
int ret;
bool ok;
ret = sys_fstat(ad->ad_fd, &sbuf, lp_fake_directory_create_times(
SNUM(ad->ad_handle->conn)));
if (ret != 0) {
return -1;
}
/*
* AppleDouble file header content and size, two cases:
*
* - without xattrs it is exactly AD_DATASZ_DOT_UND (82) bytes large
* - with embedded xattrs it can be larger, up to AD_XATTR_MAX_HDR_SIZE
*
* Read as much as we can up to AD_XATTR_MAX_HDR_SIZE.
*/
size = sbuf.st_ex_size;
if (size > talloc_array_length(ad->ad_data)) {
if (size > AD_XATTR_MAX_HDR_SIZE) {
size = AD_XATTR_MAX_HDR_SIZE;
}
p_ad = talloc_realloc(ad, ad->ad_data, char, size);
if (p_ad == NULL) {
return -1;
}
ad->ad_data = p_ad;
}
len = sys_pread(ad->ad_fd, ad->ad_data,
talloc_array_length(ad->ad_data), 0);
if (len != talloc_array_length(ad->ad_data)) {
DBG_NOTICE("%s %s: bad size: %zd\n",
smb_fname->base_name, strerror(errno), len);
return -1;
}
/* Now parse entries */
ok = ad_unpack(ad, ADEID_NUM_DOT_UND, sbuf.st_ex_size);
if (!ok) {
DBG_ERR("invalid AppleDouble resource %s\n",
smb_fname->base_name);
errno = EINVAL;
return -1;
}
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)) {
DBG_ERR("invalid AppleDouble resource %s\n",
smb_fname->base_name);
errno = EINVAL;
return -1;
}
if (ad_getentrylen(ad, ADEID_FINDERI) == ADEDLEN_FINDERI) {
return len;
}
/*
* Try to fixup AppleDouble files created by OS X with xattrs
* appended to the ADEID_FINDERI entry. We simply remove the
* xattrs blob, this means any fancy xattr that was stored
* there is lost.
*/
ret = ad_convert(ad, smb_fname, ad->ad_fd);
if (ret != 0) {
DBG_WARNING("Failed to convert [%s]\n", smb_fname->base_name);
return len;
}
ok = ad_pack(ad);
if (!ok) {
DBG_WARNING("ad_pack [%s] failed\n", smb_fname->base_name);
return -1;
}
len = sys_pwrite(ad->ad_fd, ad->ad_data, AD_DATASZ_DOT_UND, 0);
if (len != AD_DATASZ_DOT_UND) {
DBG_ERR("%s: bad size: %zd\n", smb_fname->base_name, len);
return -1;
}
p_ad = ad_get_entry(ad, ADEID_FINDERI);
if (p_ad == NULL) {
return -1;
}
ai = afpinfo_new(talloc_tos());
if (ai == NULL) {
return -1;
}
memcpy(ai->afpi_FinderInfo, p_ad, ADEDLEN_FINDERI);
aiblob = data_blob_talloc(talloc_tos(), NULL, AFP_INFO_SIZE);
if (aiblob.data == NULL) {
TALLOC_FREE(ai);
return -1;
}
size = afpinfo_pack(ai, (char *)aiblob.data);
TALLOC_FREE(ai);
if (size != AFP_INFO_SIZE) {
return -1;
}
stream_name = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPINFO_STREAM,
NULL,
smb_fname->flags);
if (stream_name == NULL) {
data_blob_free(&aiblob);
DBG_ERR("synthetic_smb_fname failed\n");
return -1;
}
DBG_DEBUG("stream_name: %s\n", smb_fname_str_dbg(stream_name));
status = SMB_VFS_CREATE_FILE(
ad->ad_handle->conn, /* conn */
NULL, /* req */
0, /* root_dir_fid */
stream_name, /* fname */
FILE_GENERIC_WRITE, /* access_mask */
FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
FILE_OPEN_IF, /* create_disposition */
0, /* create_options */
0, /* file_attributes */
INTERNAL_OPEN_ONLY, /* oplock_request */
NULL, /* lease */
0, /* allocation_size */
0, /* private_flags */
NULL, /* sd */
NULL, /* ea_list */
&fsp, /* result */
NULL, /* psbuf */
NULL, NULL); /* create context */
TALLOC_FREE(stream_name);
if (!NT_STATUS_IS_OK(status)) {
DBG_ERR("SMB_VFS_CREATE_FILE failed\n");
return -1;
}
nwritten = SMB_VFS_PWRITE(fsp,
aiblob.data,
aiblob.length,
0);
if (nwritten == -1) {
DBG_ERR("SMB_VFS_PWRITE failed\n");
saved_errno = errno;
close_file(NULL, fsp, ERROR_CLOSE);
errno = saved_errno;
return -1;
}
status = close_file(NULL, fsp, NORMAL_CLOSE);
if (!NT_STATUS_IS_OK(status)) {
return -1;
}
fsp = NULL;
return len;
}
/**
* Read and parse resource fork, either ._ AppleDouble file or xattr
**/
static ssize_t ad_read_rsrc(struct adouble *ad,
const struct smb_filename *smb_fname)
{
struct fruit_config_data *config = NULL;
ssize_t len;
SMB_VFS_HANDLE_GET_DATA(ad->ad_handle, config,
struct fruit_config_data, return -1);
if (config->rsrc == FRUIT_RSRC_XATTR) {
len = ad_read_rsrc_xattr(ad);
} else {
len = ad_read_rsrc_adouble(ad, smb_fname);
}
return len;
}
/**
* Read and unpack an AppleDouble metadata xattr or resource
**/
static ssize_t ad_read(struct adouble *ad, const struct smb_filename *smb_fname)
{
switch (ad->ad_type) {
case ADOUBLE_META:
return ad_read_meta(ad, smb_fname);
case ADOUBLE_RSRC:
return ad_read_rsrc(ad, smb_fname);
default:
return -1;
}
}
static int adouble_destructor(struct adouble *ad)
{
if ((ad->ad_fd != -1) && ad->ad_opened) {
close(ad->ad_fd);
ad->ad_fd = -1;
}
return 0;
}
/**
* 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
*
* @return adouble handle
**/
static struct adouble *ad_alloc(TALLOC_CTX *ctx, vfs_handle_struct *handle,
adouble_type_t type)
{
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;
}
ad = talloc_zero(ctx, struct adouble);
if (ad == NULL) {
rc = -1;
goto exit;
}
if (adsize) {
ad->ad_data = talloc_zero_array(ad, char, adsize);
if (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;
ad->ad_fd = -1;
talloc_set_destructor(ad, adouble_destructor);
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
*
* @return adouble handle, initialized
**/
static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
adouble_type_t type)
{
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);
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;
}
static struct adouble *ad_get_internal(TALLOC_CTX *ctx,
vfs_handle_struct *handle,
files_struct *fsp,
const struct smb_filename *smb_fname,
adouble_type_t type)
{
int rc = 0;
ssize_t len;
struct adouble *ad = NULL;
int mode;
if (fsp != NULL) {
smb_fname = fsp->base_fsp->fsp_name;
}
DEBUG(10, ("ad_get(%s) called for %s\n",
type == ADOUBLE_META ? "meta" : "rsrc",
smb_fname->base_name));
ad = ad_alloc(ctx, handle, type);
if (ad == NULL) {
rc = -1;
goto exit;
}
/* Try rw first so we can use the fd in ad_convert() */
mode = O_RDWR;
rc = ad_open(handle, ad, fsp, smb_fname, mode, 0);
if (rc == -1 && ((errno == EROFS) || (errno == EACCES))) {
mode = O_RDONLY;
rc = ad_open(handle, ad, fsp, smb_fname, mode, 0);
}
if (rc == -1) {
DBG_DEBUG("ad_open [%s] error [%s]\n",
smb_fname->base_name, strerror(errno));
goto exit;
}
len = ad_read(ad, smb_fname);
if (len == -1) {
DEBUG(10, ("error reading AppleDouble for %s\n",
smb_fname->base_name));
rc = -1;
goto exit;
}
exit:
DEBUG(10, ("ad_get(%s) for %s returning %d\n",
type == ADOUBLE_META ? "meta" : "rsrc",
smb_fname->base_name, rc));
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] smb_fname 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 struct smb_filename *smb_fname,
adouble_type_t type)
{
return ad_get_internal(ctx, handle, NULL, smb_fname, type);
}
/**
* Return AppleDouble data for a file
*
* @param[in] ctx talloc context
* @param[in] handle vfs handle
* @param[in] fsp fsp to use for IO
* @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
*
* @return talloced struct adouble or NULL on error
**/
static struct adouble *ad_fget(TALLOC_CTX *ctx, vfs_handle_struct *handle,
files_struct *fsp, adouble_type_t type)
{
return ad_get_internal(ctx, handle, fsp, NULL, type);
}
/**
* Set AppleDouble metadata on a file or directory
*
* @param[in] ad adouble handle
*
* @param[in] smb_fname pathname to file or directory
*
* @return status code, 0 means success
**/
static int ad_set(struct adouble *ad, const struct smb_filename *smb_fname)
{
bool ok;
int ret;
DBG_DEBUG("Path [%s]\n", smb_fname->base_name);
if (ad->ad_type != ADOUBLE_META) {
DBG_ERR("ad_set on [%s] used with ADOUBLE_RSRC\n",
smb_fname->base_name);
return -1;
}
ok = ad_pack(ad);
if (!ok) {
return -1;
}
ret = SMB_VFS_SETXATTR(ad->ad_handle->conn,
smb_fname,
AFPINFO_EA_NETATALK,
ad->ad_data,
AD_DATASZ_XATTR, 0);
DBG_DEBUG("Path [%s] ret [%d]\n", smb_fname->base_name, ret);
return ret;
}
/**
* Set AppleDouble metadata on a file or directory
*
* @param[in] ad adouble handle
* @param[in] fsp file handle
*
* @return status code, 0 means success
**/
static int ad_fset(struct adouble *ad, files_struct *fsp)
{
int rc = -1;
ssize_t len;
bool ok;
DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
if ((fsp == NULL)
|| (fsp->fh == NULL)
|| (fsp->fh->fd == -1))
{
smb_panic("bad fsp");
}
ok = ad_pack(ad);
if (!ok) {
return -1;
}
switch (ad->ad_type) {
case ADOUBLE_META:
rc = SMB_VFS_NEXT_SETXATTR(ad->ad_handle,
fsp->fsp_name,
AFPINFO_EA_NETATALK,
ad->ad_data,
AD_DATASZ_XATTR, 0);
break;
case ADOUBLE_RSRC:
len = SMB_VFS_NEXT_PWRITE(ad->ad_handle,
fsp,
ad->ad_data,
AD_DATASZ_DOT_UND,
0);
if (len != AD_DATASZ_DOT_UND) {
DBG_ERR("short write on %s: %zd", fsp_str_dbg(fsp), len);
return -1;
}
rc = 0;
break;
default:
return -1;
}
DBG_DEBUG("Path [%s] rc [%d]\n", fsp_str_dbg(fsp), rc);
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;
const char *tm_size_str = NULL;
config = talloc_zero(handle->conn, struct fruit_config_data);
if (!config) {
DEBUG(1, ("talloc_zero() failed\n"));
errno = ENOMEM;
return -1;
}
/*
* Versions up to Samba 4.5.x had a spelling bug in the
* fruit:resource option calling lp_parm_enum with
* "res*s*ource" (ie two s).
*
* In Samba 4.6 we accept both the wrong and the correct
* spelling, in Samba 4.7 the bad spelling will be removed.
*/
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: resource 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,
"resource", fruit_rsrc, enumval);
if (enumval == -1) {
DEBUG(1, ("value for %s: resource 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 (config->rsrc == FRUIT_RSRC_ADFILE) {
config->veto_appledouble = lp_parm_bool(SNUM(handle->conn),
FRUIT_PARAM_TYPE_NAME,
"veto_appledouble",
true);
}
config->use_aapl = lp_parm_bool(
-1, FRUIT_PARAM_TYPE_NAME, "aapl", true);
config->time_machine = lp_parm_bool(
SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "time machine", false);
config->unix_info_enabled = lp_parm_bool(
-1, FRUIT_PARAM_TYPE_NAME, "nfs_aces", true);
config->use_copyfile = lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME,
"copyfile", false);
config->posix_rename = lp_parm_bool(
SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "posix_rename", true);
config->aapl_zero_file_id =
lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME, "zero_file_id", true);
config->readdir_attr_rsize = lp_parm_bool(
SNUM(handle->conn), "readdir_attr", "aapl_rsize", true);
config->readdir_attr_finder_info = lp_parm_bool(
SNUM(handle->conn), "readdir_attr", "aapl_finder_info", true);
config->readdir_attr_max_access = lp_parm_bool(
SNUM(handle->conn), "readdir_attr", "aapl_max_access", true);
config->model = lp_parm_const_string(
-1, FRUIT_PARAM_TYPE_NAME, "model", "MacSamba");
tm_size_str = lp_parm_const_string(
SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"time machine max size", NULL);
if (tm_size_str != NULL) {
config->time_machine_max_size = conv_str_size(tm_size_str);
}
SMB_VFS_HANDLE_SET_DATA(handle, config,
NULL, struct fruit_config_data,
return -1);
return 0;
}
/**
* Prepend "._" to a basename
* Return a new struct smb_filename with stream_name == NULL.
**/
static int adouble_path(TALLOC_CTX *ctx,
const struct smb_filename *smb_fname_in,
struct smb_filename **pp_smb_fname_out)
{
char *parent;
const char *base;
struct smb_filename *smb_fname = cp_smb_filename(ctx,
smb_fname_in);
if (smb_fname == NULL) {
return -1;
}
/* We need streamname to be NULL */
TALLOC_FREE(smb_fname->stream_name);
/* And we're replacing base_name. */
TALLOC_FREE(smb_fname->base_name);
if (!parent_dirname(smb_fname, smb_fname_in->base_name,
&parent, &base)) {
TALLOC_FREE(smb_fname);
return -1;
}
smb_fname->base_name = talloc_asprintf(smb_fname,
"%s/._%s", parent, base);
if (smb_fname->base_name == NULL) {
TALLOC_FREE(smb_fname);
return -1;
}
*pp_smb_fname_out = smb_fname;
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;
}
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 filter_empty_rsrc_stream(unsigned int *num_streams,
struct stream_struct **streams)
{
struct stream_struct *tmp = *streams;
unsigned int i;
if (*num_streams == 0) {
return true;
}
for (i = 0; i < *num_streams; i++) {
if (strequal_m(tmp[i].name, AFPRESOURCE_STREAM)) {
break;
}
}
if (i == *num_streams) {
return true;
}
if (tmp[i].size > 0) {
return true;
}
TALLOC_FREE(tmp[i].name);
if (*num_streams - 1 > i) {
memmove(&tmp[i], &tmp[i+1],
(*num_streams - i - 1) * sizeof(struct stream_struct));
}
*num_streams -= 1;
return true;
}
static bool del_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
struct stream_struct **streams,
const char *name)
{
struct stream_struct *tmp = *streams;
unsigned int i;
if (*num_streams == 0) {
return true;
}
for (i = 0; i < *num_streams; i++) {
if (strequal_m(tmp[i].name, name)) {
break;
}
}
if (i == *num_streams) {
return true;
}
TALLOC_FREE(tmp[i].name);
if (*num_streams - 1 > i) {
memmove(&tmp[i], &tmp[i+1],
(*num_streams - i - 1) * sizeof(struct stream_struct));
}
*num_streams -= 1;
return true;
}
static bool ad_empty_finderinfo(const struct adouble *ad)
{
int cmp;
char emptybuf[ADEDLEN_FINDERI] = {0};
char *fi = NULL;
fi = ad_get_entry(ad, ADEID_FINDERI);
if (fi == NULL) {
DBG_ERR("Missing FinderInfo in struct adouble [%p]\n", ad);
return false;
}
cmp = memcmp(emptybuf, fi, ADEDLEN_FINDERI);
return (cmp == 0);
}
static bool ai_empty_finderinfo(const AfpInfo *ai)
{
int cmp;
char emptybuf[ADEDLEN_FINDERI] = {0};
cmp = memcmp(emptybuf, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
return (cmp == 0);
}
/**
* 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;
struct fruit_config_data *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return);
switch (config->meta) {
case FRUIT_META_STREAM:
return;
case FRUIT_META_NETATALK:
/* Handled below */
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", config->meta);
return;
}
ad = ad_get(talloc_tos(), handle, smb_fname, 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 occurred
* 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;
bool have_read = false;
int flags;
/* 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" : "-"));
if (fsp->fh->fd == -1) {
return NT_STATUS_OK;
}
flags = fcntl(fsp->fh->fd, F_GETFL);
if (flags == -1) {
DBG_ERR("fcntl get flags [%s] fd [%d] failed [%s]\n",
fsp_str_dbg(fsp), fsp->fh->fd, strerror(errno));
return map_nt_error_from_unix(errno);
}
if (flags & (O_RDONLY|O_RDWR)) {
/*
* Applying fcntl read locks requires an fd opened for
* reading. This means we won't be applying locks for
* files openend write-only, but what can we do...
*/
have_read = true;
}
/*
* 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) && have_read) {
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) && have_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) && have_read) {
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) && have_read) {
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 length: %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;
}
if (config->use_copyfile) {
server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE;
config->copyfile_enabled = true;
}
/*
* The client doesn't set the flag, so we can't check
* for it and just set it unconditionally
*/
if (config->unix_info_enabled) {
server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
}
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) {
int val = lp_case_sensitive(SNUM(handle->conn->tcon->compat));
uint64_t caps = 0;
switch (val) {
case Auto:
break;
case True:
caps |= SMB2_CRTCTX_AAPL_CASE_SENSITIVE;
break;
default:
break;
}
if (config->time_machine) {
caps |= SMB2_CRTCTX_AAPL_FULL_SYNC;
}
SBVAL(p, 0, caps);
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,
config->model, strlen(config->model),
&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);
if (NT_STATUS_IS_OK(status)) {
global_fruit_config.nego_aapl = true;
if (config->aapl_zero_file_id) {
aapl_force_zero_file_id(handle->conn->sconn);
}
}
return status;
}
static bool readdir_attr_meta_finderi_stream(
struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
AfpInfo *ai)
{
struct smb_filename *stream_name = NULL;
files_struct *fsp = NULL;
ssize_t nread;
NTSTATUS status;
int ret;
bool ok;
uint8_t buf[AFP_INFO_SIZE];
stream_name = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPINFO_STREAM_NAME,
NULL, smb_fname->flags);
if (stream_name == NULL) {
return false;
}
ret = SMB_VFS_STAT(handle->conn, stream_name);
if (ret != 0) {
return false;
}
status = SMB_VFS_CREATE_FILE(
handle->conn, /* conn */
NULL, /* req */
0, /* root_dir_fid */
stream_name, /* fname */
FILE_READ_DATA, /* access_mask */
(FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
FILE_SHARE_DELETE),
FILE_OPEN, /* create_disposition*/
0, /* create_options */
0, /* file_attributes */
INTERNAL_OPEN_ONLY, /* oplock_request */
NULL, /* lease */
0, /* allocation_size */
0, /* private_flags */
NULL, /* sd */
NULL, /* ea_list */
&fsp, /* result */
NULL, /* pinfo */
NULL, NULL); /* create context */
TALLOC_FREE(stream_name);
if (!NT_STATUS_IS_OK(status)) {
return false;
}
nread = SMB_VFS_PREAD(fsp, &buf[0], AFP_INFO_SIZE, 0);
if (nread != AFP_INFO_SIZE) {
DBG_ERR("short read [%s] [%zd/%d]\n",
smb_fname_str_dbg(stream_name), nread, AFP_INFO_SIZE);
ok = false;
goto fail;
}
memcpy(&ai->afpi_FinderInfo[0], &buf[AFP_OFF_FinderInfo],
AFP_FinderSize);
ok = true;
fail:
if (fsp != NULL) {
close_file(NULL, fsp, NORMAL_CLOSE);
}
return ok;
}
static bool readdir_attr_meta_finderi_netatalk(
struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
AfpInfo *ai)
{
struct adouble *ad = NULL;
char *p = NULL;
ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
if (ad == NULL) {
return false;
}
p = ad_get_entry(ad, ADEID_FINDERI);
if (p == NULL) {
DBG_ERR("No ADEID_FINDERI for [%s]\n", smb_fname->base_name);
TALLOC_FREE(ad);
return false;
}
memcpy(&ai->afpi_FinderInfo[0], p, AFP_FinderSize);
TALLOC_FREE(ad);
return true;
}
static bool readdir_attr_meta_finderi(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
struct readdir_attr_data *attr_data)
{
struct fruit_config_data *config = NULL;
uint32_t date_added;
AfpInfo ai = {0};
bool ok;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return false);
switch (config->meta) {
case FRUIT_META_NETATALK:
ok = readdir_attr_meta_finderi_netatalk(
handle, smb_fname, &ai);
break;
case FRUIT_META_STREAM:
ok = readdir_attr_meta_finderi_stream(
handle, smb_fname, &ai);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", config->meta);
return false;
}
if (!ok) {
/* Don't bother with errors, it's likely ENOENT */
return true;
}
if (S_ISREG(smb_fname->st.st_ex_mode)) {
/* finder_type */
memcpy(&attr_data->attr_data.aapl.finder_info[0],
&ai.afpi_FinderInfo[0], 4);
/* finder_creator */
memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
&ai.afpi_FinderInfo[4], 4);
}
/* finder_flags */
memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
&ai.afpi_FinderInfo[8], 2);
/* finder_ext_flags */
memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
&ai.afpi_FinderInfo[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);
return true;
}
static uint64_t readdir_attr_rfork_size_adouble(
struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
struct adouble *ad = NULL;
uint64_t rfork_size;
ad = ad_get(talloc_tos(), handle, smb_fname,
ADOUBLE_RSRC);
if (ad == NULL) {
return 0;
}
rfork_size = ad_getentrylen(ad, ADEID_RFORK);
TALLOC_FREE(ad);
return rfork_size;
}
static uint64_t readdir_attr_rfork_size_stream(
struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
struct smb_filename *stream_name = NULL;
int ret;
uint64_t rfork_size;
stream_name = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPRESOURCE_STREAM_NAME,
NULL, 0);
if (stream_name == NULL) {
return 0;
}
ret = SMB_VFS_STAT(handle->conn, stream_name);
if (ret != 0) {
TALLOC_FREE(stream_name);
return 0;
}
rfork_size = stream_name->st.st_ex_size;
TALLOC_FREE(stream_name);
return rfork_size;
}
static uint64_t readdir_attr_rfork_size(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
struct fruit_config_data *config = NULL;
uint64_t rfork_size;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return 0);
switch (config->rsrc) {
case FRUIT_RSRC_ADFILE:
case FRUIT_RSRC_XATTR:
rfork_size = readdir_attr_rfork_size_adouble(handle,
smb_fname);
break;
case FRUIT_META_STREAM:
rfork_size = readdir_attr_rfork_size_stream(handle,
smb_fname);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
rfork_size = 0;
break;
}
return rfork_size;
}
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;
struct fruit_config_data *config = NULL;
bool ok;
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) {
uint64_t rfork_size;
rfork_size = readdir_attr_rfork_size(handle, smb_fname);
attr_data->attr_data.aapl.rfork_size = rfork_size;
}
/*
* FinderInfo
*/
if (config->readdir_attr_finder_info) {
ok = readdir_attr_meta_finderi(handle, smb_fname, attr_data);
if (!ok) {
status = NT_STATUS_INTERNAL_ERROR;
}
}
return status;
}
static NTSTATUS remove_virtual_nfs_aces(struct security_descriptor *psd)
{
NTSTATUS status;
uint32_t i;
if (psd->dacl == NULL) {
return NT_STATUS_OK;
}
for (i = 0; i < psd->dacl->num_aces; i++) {
/* MS NFS style mode/uid/gid */
int cmp = dom_sid_compare_domain(
&global_sid_Unix_NFS,
&psd->dacl->aces[i].trustee);
if (cmp != 0) {
/* Normal ACE entry. */
continue;
}
/*
* security_descriptor_dacl_del()
* *must* return NT_STATUS_OK as we know
* we have something to remove.
*/
status = security_descriptor_dacl_del(psd,
&psd->dacl->aces[i].trustee);
if (!NT_STATUS_IS_OK(status)) {
DBG_WARNING("failed to remove MS NFS style ACE: %s\n",
nt_errstr(status));
return status;
}
/*
* security_descriptor_dacl_del() may delete more
* then one entry subsequent to this one if the
* SID matches, but we only need to ensure that
* we stay looking at the same element in the array.
*/
i--;
}
return NT_STATUS_OK;
}
/* Search MS NFS style ACE with UNIX mode */
static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
files_struct *fsp,
struct security_descriptor *psd,
mode_t *pmode,
bool *pdo_chmod)
{
uint32_t 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 (!global_fruit_config.nego_aapl) {
return NT_STATUS_OK;
}
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), (unsigned)(*pmode)));
break;
}
}
/*
* Remove any incoming virtual ACE entries generated by
* fruit_fget_nt_acl().
*/
return remove_virtual_nfs_aces(psd);
}
/****************************************************************************
* 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;
}
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->veto_appledouble) {
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);
}
if (config->encoding == FRUIT_ENC_NATIVE) {
lp_do_parameter(SNUM(handle->conn),
"catia:mappings",
fruit_catia_maps);
}
if (config->time_machine) {
DBG_NOTICE("Enabling durable handles for Time Machine "
"support on [%s]\n", service);
lp_do_parameter(SNUM(handle->conn), "durable handles", "yes");
lp_do_parameter(SNUM(handle->conn), "kernel oplocks", "no");
lp_do_parameter(SNUM(handle->conn), "kernel share modes", "no");
if (!lp_strict_sync(SNUM(handle->conn))) {
DBG_WARNING("Time Machine without strict sync is not "
"recommended!\n");
}
lp_do_parameter(SNUM(handle->conn), "posix locking", "no");
}
return rc;
}
static int fruit_open_meta_stream(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp,
int flags,
mode_t mode)
{
AfpInfo *ai = NULL;
char afpinfo_buf[AFP_INFO_SIZE];
ssize_t len, written;
int hostfd = -1;
int rc = -1;
hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
if (hostfd == -1) {
return -1;
}
if (!(flags & (O_CREAT | O_TRUNC))) {
return hostfd;
}
ai = afpinfo_new(talloc_tos());
if (ai == NULL) {
rc = -1;
goto fail;
}
len = afpinfo_pack(ai, afpinfo_buf);
if (len != AFP_INFO_SIZE) {
rc = -1;
goto fail;
}
/* Set fd, needed in SMB_VFS_NEXT_PWRITE() */
fsp->fh->fd = hostfd;
written = SMB_VFS_NEXT_PWRITE(handle, fsp, afpinfo_buf,
AFP_INFO_SIZE, 0);
fsp->fh->fd = -1;
if (written != AFP_INFO_SIZE) {
DBG_ERR("bad write [%zd/%d]\n", written, AFP_INFO_SIZE);
rc = -1;
goto fail;
}
rc = 0;
fail:
DBG_DEBUG("rc=%d, fd=%d\n", rc, hostfd);
if (rc != 0) {
int saved_errno = errno;
if (hostfd >= 0) {
fsp->fh->fd = hostfd;
SMB_VFS_NEXT_CLOSE(handle, fsp);
}
hostfd = -1;
errno = saved_errno;
}
return hostfd;
}
static int fruit_open_meta_netatalk(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp,
int flags,
mode_t mode)
{
int rc;
int fakefd = -1;
struct adouble *ad = NULL;
int fds[2];
DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
/*
* Return a valid fd, but ensure any attempt to use it returns an error
* (EPIPE). All operations on the smb_fname or the fsp will use path
* based syscalls.
*/
rc = pipe(fds);
if (rc != 0) {
goto exit;
}
fakefd = fds[0];
close(fds[1]);
if (flags & (O_CREAT | O_TRUNC)) {
/*
* The attribute does not exist or needs to be truncated,
* create an AppleDouble EA
*/
ad = ad_init(fsp, handle, ADOUBLE_META);
if (ad == NULL) {
rc = -1;
goto exit;
}
rc = ad_set(ad, fsp->fsp_name);
if (rc != 0) {
rc = -1;
goto exit;
}
TALLOC_FREE(ad);
}
exit:
DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, fakefd));
if (rc != 0) {
int saved_errno = errno;
if (fakefd >= 0) {
close(fakefd);
}
fakefd = -1;
errno = saved_errno;
}
return fakefd;
}
static int fruit_open_meta(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
int fd;
struct fruit_config_data *config = NULL;
struct fio *fio = NULL;
DBG_DEBUG("path [%s]\n", smb_fname_str_dbg(smb_fname));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->meta) {
case FRUIT_META_STREAM:
fd = fruit_open_meta_stream(handle, smb_fname,
fsp, flags, mode);
break;
case FRUIT_META_NETATALK:
fd = fruit_open_meta_netatalk(handle, smb_fname,
fsp, flags, mode);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", config->meta);
return -1;
}
DBG_DEBUG("path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
if (fd == -1) {
return -1;
}
fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
fio->type = ADOUBLE_META;
fio->config = config;
return fd;
}
static int fruit_open_rsrc_adouble(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp,
int flags,
mode_t mode)
{
int rc = 0;
struct adouble *ad = NULL;
struct smb_filename *smb_fname_base = NULL;
struct fruit_config_data *config = NULL;
int hostfd = -1;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if ((!(flags & O_CREAT)) &&
S_ISDIR(fsp->base_fsp->fsp_name->st.st_ex_mode))
{
/* sorry, but directories don't habe a resource fork */
rc = -1;
goto exit;
}
rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_base);
if (rc != 0) {
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_NEXT_OPEN(handle, smb_fname_base, fsp,
flags, mode);
if (hostfd == -1) {
rc = -1;
goto exit;
}
if (flags & (O_CREAT | O_TRUNC)) {
ad = ad_init(fsp, handle, ADOUBLE_RSRC);
if (ad == NULL) {
rc = -1;
goto exit;
}
fsp->fh->fd = hostfd;
rc = ad_fset(ad, fsp);
fsp->fh->fd = -1;
if (rc != 0) {
rc = -1;
goto exit;
}
TALLOC_FREE(ad);
}
exit:
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_rsrc_xattr(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp,
int flags,
mode_t mode)
{
#ifdef HAVE_ATTROPEN
int fd = -1;
fd = attropen(smb_fname->base_name,
AFPRESOURCE_EA_NETATALK,
flags,
mode);
if (fd == -1) {
return -1;
}
return fd;
#else
errno = ENOSYS;
return -1;
#endif
}
static int fruit_open_rsrc(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
int fd;
struct fruit_config_data *config = NULL;
struct fio *fio = NULL;
DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (((flags & O_ACCMODE) == O_RDONLY)
&& (flags & O_CREAT)
&& !VALID_STAT(fsp->fsp_name->st))
{
/*
* This means the stream doesn't exist. macOS SMB server fails
* this with NT_STATUS_OBJECT_NAME_NOT_FOUND, so must we. Cf bug
* 12565 and the test for this combination in
* test_rfork_create().
*/
errno = ENOENT;
return -1;
}
switch (config->rsrc) {
case FRUIT_RSRC_STREAM:
fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
break;
case FRUIT_RSRC_ADFILE:
fd = fruit_open_rsrc_adouble(handle, smb_fname,
fsp, flags, mode);
break;
case FRUIT_RSRC_XATTR:
fd = fruit_open_rsrc_xattr(handle, smb_fname,
fsp, flags, mode);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
return -1;
}
DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
if (fd == -1) {
return -1;
}
fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
fio->type = ADOUBLE_RSRC;
fio->config = config;
return fd;
}
static int fruit_open(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
int fd;
DBG_DEBUG("Path [%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)) {
fd = fruit_open_meta(handle, smb_fname, fsp, flags, mode);
} else if (is_afpresource_stream(smb_fname)) {
fd = fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
} else {
fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
return fd;
}
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;
struct fruit_config_data *config = NULL;
struct smb_filename *src_adp_smb_fname = NULL;
struct smb_filename *dst_adp_smb_fname = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (!VALID_STAT(smb_fname_src->st)) {
DBG_ERR("Need valid stat for [%s]\n",
smb_fname_str_dbg(smb_fname_src));
return -1;
}
rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
if (rc != 0) {
return -1;
}
if ((config->rsrc != FRUIT_RSRC_ADFILE) ||
(!S_ISREG(smb_fname_src->st.st_ex_mode)))
{
return 0;
}
rc = adouble_path(talloc_tos(), smb_fname_src, &src_adp_smb_fname);
if (rc != 0) {
goto done;
}
rc = adouble_path(talloc_tos(), smb_fname_dst, &dst_adp_smb_fname);
if (rc != 0) {
goto done;
}
DBG_DEBUG("%s -> %s\n",
smb_fname_str_dbg(src_adp_smb_fname),
smb_fname_str_dbg(dst_adp_smb_fname));
rc = SMB_VFS_NEXT_RENAME(handle, src_adp_smb_fname, dst_adp_smb_fname);
if (errno == ENOENT) {
rc = 0;
}
done:
TALLOC_FREE(src_adp_smb_fname);
TALLOC_FREE(dst_adp_smb_fname);
return rc;
}
static int fruit_unlink_meta_stream(vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
}
static int fruit_unlink_meta_netatalk(vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
return SMB_VFS_REMOVEXATTR(handle->conn,
smb_fname,
AFPINFO_EA_NETATALK);
}
static int fruit_unlink_meta(vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
struct fruit_config_data *config = NULL;
int rc;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->meta) {
case FRUIT_META_STREAM:
rc = fruit_unlink_meta_stream(handle, smb_fname);
break;
case FRUIT_META_NETATALK:
rc = fruit_unlink_meta_netatalk(handle, smb_fname);
break;
default:
DBG_ERR("Unsupported meta config [%d]\n", config->meta);
return -1;
}
return rc;
}
static int fruit_unlink_rsrc_stream(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
bool force_unlink)
{
int ret;
if (!force_unlink) {
struct smb_filename *smb_fname_cp = NULL;
off_t size;
smb_fname_cp = cp_smb_filename(talloc_tos(), smb_fname);
if (smb_fname_cp == NULL) {
return -1;
}
/*
* 0 byte resource fork streams are not listed by
* vfs_streaminfo, as a result stream cleanup/deletion of file
* deletion doesn't remove the resourcefork stream.
*/
ret = SMB_VFS_NEXT_STAT(handle, smb_fname_cp);
if (ret != 0) {
TALLOC_FREE(smb_fname_cp);
DBG_ERR("stat [%s] failed [%s]\n",
smb_fname_str_dbg(smb_fname_cp), strerror(errno));
return -1;
}
size = smb_fname_cp->st.st_ex_size;
TALLOC_FREE(smb_fname_cp);
if (size > 0) {
/* OS X ignores resource fork stream delete requests */
return 0;
}
}
ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
if ((ret != 0) && (errno == ENOENT) && force_unlink) {
ret = 0;
}
return ret;
}
static int fruit_unlink_rsrc_adouble(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
bool force_unlink)
{
int rc;
struct adouble *ad = NULL;
struct smb_filename *adp_smb_fname = NULL;
if (!force_unlink) {
ad = ad_get(talloc_tos(), handle, smb_fname,
ADOUBLE_RSRC);
if (ad == NULL) {
errno = ENOENT;
return -1;
}
/*
* 0 byte resource fork streams are not listed by
* vfs_streaminfo, as a result stream cleanup/deletion of file
* deletion doesn't remove the resourcefork stream.
*/
if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
/* OS X ignores resource fork stream delete requests */
TALLOC_FREE(ad);
return 0;
}
TALLOC_FREE(ad);
}
rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
if (rc != 0) {
return -1;
}
rc = SMB_VFS_NEXT_UNLINK(handle, adp_smb_fname);
TALLOC_FREE(adp_smb_fname);
if ((rc != 0) && (errno == ENOENT) && force_unlink) {
rc = 0;
}
return rc;
}
static int fruit_unlink_rsrc_xattr(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
bool force_unlink)
{
/*
* OS X ignores resource fork stream delete requests, so nothing to do
* here. Removing the file will remove the xattr anyway, so we don't
* have to take care of removing 0 byte resource forks that could be
* left behind.
*/
return 0;
}
static int fruit_unlink_rsrc(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
bool force_unlink)
{
struct fruit_config_data *config = NULL;
int rc;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->rsrc) {
case FRUIT_RSRC_STREAM:
rc = fruit_unlink_rsrc_stream(handle, smb_fname, force_unlink);
break;
case FRUIT_RSRC_ADFILE:
rc = fruit_unlink_rsrc_adouble(handle, smb_fname, force_unlink);
break;
case FRUIT_RSRC_XATTR:
rc = fruit_unlink_rsrc_xattr(handle, smb_fname, force_unlink);
break;
default:
DBG_ERR("Unsupported rsrc config [%d]\n", config->rsrc);
return -1;
}
return rc;
}
static int fruit_unlink(vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
int rc;
struct fruit_config_data *config = NULL;
struct smb_filename *rsrc_smb_fname = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (is_afpinfo_stream(smb_fname)) {
return fruit_unlink_meta(handle, smb_fname);
} else if (is_afpresource_stream(smb_fname)) {
return fruit_unlink_rsrc(handle, smb_fname, false);
} if (is_ntfs_stream_smb_fname(smb_fname)) {
return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
}
/*
* A request to delete the base file. Because 0 byte resource
* fork streams are not listed by fruit_streaminfo,
* delete_all_streams() can't remove 0 byte resource fork
* streams, so we have to cleanup this here.
*/
rsrc_smb_fname = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPRESOURCE_STREAM_NAME,
NULL,
smb_fname->flags);
if (rsrc_smb_fname == NULL) {
return -1;
}
rc = fruit_unlink_rsrc(handle, rsrc_smb_fname, true);
if ((rc != 0) && (errno != ENOENT)) {
DBG_ERR("Forced unlink of [%s] failed [%s]\n",
smb_fname_str_dbg(rsrc_smb_fname), strerror(errno));
TALLOC_FREE(rsrc_smb_fname);
return -1;
}
TALLOC_FREE(rsrc_smb_fname);
return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
}
static int fruit_chmod(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
mode_t mode)
{
int rc = -1;
struct fruit_config_data *config = NULL;
struct smb_filename *smb_fname_adp = NULL;
rc = SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
if (rc != 0) {
return rc;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (config->rsrc != FRUIT_RSRC_ADFILE) {
return 0;
}
if (!VALID_STAT(smb_fname->st)) {
return 0;
}
if (!S_ISREG(smb_fname->st.st_ex_mode)) {
return 0;
}
rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_adp);
if (rc != 0) {
return -1;
}
DEBUG(10, ("fruit_chmod: %s\n", smb_fname_adp->base_name));
rc = SMB_VFS_NEXT_CHMOD(handle, smb_fname_adp, mode);
if (errno == ENOENT) {
rc = 0;
}
TALLOC_FREE(smb_fname_adp);
return rc;
}
static int fruit_chown(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
uid_t uid,
gid_t gid)
{
int rc = -1;
struct fruit_config_data *config = NULL;
struct smb_filename *adp_smb_fname = NULL;
rc = SMB_VFS_NEXT_CHOWN(handle, smb_fname, 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_ADFILE) {
return 0;
}
if (!VALID_STAT(smb_fname->st)) {
return 0;
}
if (!S_ISREG(smb_fname->st.st_ex_mode)) {
return 0;
}
rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
if (rc != 0) {
goto done;
}
DEBUG(10, ("fruit_chown: %s\n", adp_smb_fname->base_name));
rc = SMB_VFS_NEXT_CHOWN(handle, adp_smb_fname, uid, gid);
if (errno == ENOENT) {
rc = 0;
}
done:
TALLOC_FREE(adp_smb_fname);
return rc;
}
static int fruit_rmdir(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
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 (config->rsrc != FRUIT_RSRC_ADFILE) {
goto exit_rmdir;
}
/*
* Due to there is no way to change bDeleteVetoFiles variable
* from this module, need to clean up ourselves
*/
dh = SMB_VFS_OPENDIR(handle->conn, smb_fname, NULL, 0);
if (dh == NULL) {
goto exit_rmdir;
}
while ((de = SMB_VFS_READDIR(handle->conn, dh, NULL)) != NULL) {
int match;
struct adouble *ad = NULL;
char *p = NULL;
struct smb_filename *ad_smb_fname = NULL;
int ret;
match = strncmp(de->d_name,
ADOUBLE_NAME_PREFIX,
strlen(ADOUBLE_NAME_PREFIX));
if (match != 0) {
continue;
}
p = talloc_asprintf(talloc_tos(), "%s/%s",
smb_fname->base_name, de->d_name);
if (p == NULL) {
DBG_ERR("talloc_asprintf failed\n");
return -1;
}
ad_smb_fname = synthetic_smb_fname(talloc_tos(), p,
NULL, NULL,
smb_fname->flags);
TALLOC_FREE(p);
if (ad_smb_fname == NULL) {
DBG_ERR("synthetic_smb_fname failed\n");
return -1;
}
/*
* Check whether it's a valid AppleDouble file, if
* yes, delete it, ignore it otherwise.
*/
ad = ad_get(talloc_tos(), handle, ad_smb_fname, ADOUBLE_RSRC);
if (ad == NULL) {
TALLOC_FREE(ad_smb_fname);
TALLOC_FREE(p);
continue;
}
TALLOC_FREE(ad);
ret = SMB_VFS_NEXT_UNLINK(handle, ad_smb_fname);
if (ret != 0) {
DBG_ERR("Deleting [%s] failed\n",
smb_fname_str_dbg(ad_smb_fname));
}
TALLOC_FREE(ad_smb_fname);
}
exit_rmdir:
if (dh) {
SMB_VFS_CLOSEDIR(handle->conn, dh);
}
return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
}
static ssize_t fruit_pread_meta_stream(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
ssize_t nread;
int ret;
nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
if (nread == n) {
return nread;
}
DBG_ERR("Removing [%s] after short read [%zd]\n",
fsp_str_dbg(fsp), nread);
ret = SMB_VFS_NEXT_UNLINK(handle, fsp->fsp_name);
if (ret != 0) {
DBG_ERR("Removing [%s] failed\n", fsp_str_dbg(fsp));
return -1;
}
errno = EINVAL;
return -1;
}
static ssize_t fruit_pread_meta_adouble(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
AfpInfo *ai = NULL;
struct adouble *ad = NULL;
char afpinfo_buf[AFP_INFO_SIZE];
char *p = NULL;
ssize_t nread;
ai = afpinfo_new(talloc_tos());
if (ai == NULL) {
return -1;
}
ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
if (ad == NULL) {
nread = -1;
goto fail;
}
p = ad_get_entry(ad, ADEID_FINDERI);
if (p == NULL) {
DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
nread = -1;
goto fail;
}
memcpy(&ai->afpi_FinderInfo[0], p, ADEDLEN_FINDERI);
nread = afpinfo_pack(ai, afpinfo_buf);
if (nread != AFP_INFO_SIZE) {
nread = -1;
goto fail;
}
memcpy(data, afpinfo_buf, n);
nread = n;
fail:
TALLOC_FREE(ai);
return nread;
}
static ssize_t fruit_pread_meta(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nread;
ssize_t to_return;
/*
* OS X has a off-by-1 error in the offset calculation, so we're
* bug compatible here. It won't hurt, as any relevant real
* world read requests from the AFP_AfpInfo stream will be
* offset=0 n=60. offset is ignored anyway, see below.
*/
if ((offset < 0) || (offset >= AFP_INFO_SIZE + 1)) {
return 0;
}
/* Yes, macOS always reads from offset 0 */
offset = 0;
to_return = MIN(n, AFP_INFO_SIZE);
switch (fio->config->meta) {
case FRUIT_META_STREAM:
nread = fruit_pread_meta_stream(handle, fsp, data,
to_return, offset);
break;
case FRUIT_META_NETATALK:
nread = fruit_pread_meta_adouble(handle, fsp, data,
to_return, offset);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
return -1;
}
return nread;
}
static ssize_t fruit_pread_rsrc_stream(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
}
static ssize_t fruit_pread_rsrc_xattr(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
}
static ssize_t fruit_pread_rsrc_adouble(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
struct adouble *ad = NULL;
ssize_t nread;
ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
if (ad == NULL) {
return -1;
}
nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n,
offset + ad_getentryoff(ad, ADEID_RFORK));
TALLOC_FREE(ad);
return nread;
}
static ssize_t fruit_pread_rsrc(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nread;
switch (fio->config->rsrc) {
case FRUIT_RSRC_STREAM:
nread = fruit_pread_rsrc_stream(handle, fsp, data, n, offset);
break;
case FRUIT_RSRC_ADFILE:
nread = fruit_pread_rsrc_adouble(handle, fsp, data, n, offset);
break;
case FRUIT_RSRC_XATTR:
nread = fruit_pread_rsrc_xattr(handle, fsp, data, n, offset);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
return -1;
}
return nread;
}
static ssize_t fruit_pread(vfs_handle_struct *handle,
files_struct *fsp, void *data,
size_t n, off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nread;
DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
fsp_str_dbg(fsp), (intmax_t)offset, n);
if (fio == NULL) {
return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
}
if (fio->type == ADOUBLE_META) {
nread = fruit_pread_meta(handle, fsp, data, n, offset);
} else {
nread = fruit_pread_rsrc(handle, fsp, data, n, offset);
}
DBG_DEBUG("Path [%s] nread [%zd]\n", fsp_str_dbg(fsp), nread);
return nread;
}
static bool fruit_must_handle_aio_stream(struct fio *fio)
{
if (fio == NULL) {
return false;
};
if ((fio->type == ADOUBLE_META) &&
(fio->config->meta == FRUIT_META_NETATALK))
{
return true;
}
if ((fio->type == ADOUBLE_RSRC) &&
(fio->config->rsrc == FRUIT_RSRC_ADFILE))
{
return true;
}
return false;
}
struct fruit_pread_state {
ssize_t nread;
struct vfs_aio_state vfs_aio_state;
};
static void fruit_pread_done(struct tevent_req *subreq);
static struct tevent_req *fruit_pread_send(
struct vfs_handle_struct *handle,
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct files_struct *fsp,
void *data,
size_t n, off_t offset)
{
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
struct fruit_pread_state *state = NULL;
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
req = tevent_req_create(mem_ctx, &state,
struct fruit_pread_state);
if (req == NULL) {
return NULL;
}
if (fruit_must_handle_aio_stream(fio)) {
state->nread = SMB_VFS_PREAD(fsp, data, n, offset);
if (state->nread != n) {
if (state->nread != -1) {
errno = EIO;
}
tevent_req_error(req, errno);
return tevent_req_post(req, ev);
}
tevent_req_done(req);
return tevent_req_post(req, ev);
}
subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp,
data, n, offset);
if (tevent_req_nomem(req, subreq)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, fruit_pread_done, req);
return req;
}
static void fruit_pread_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct fruit_pread_state *state = tevent_req_data(
req, struct fruit_pread_state);
state->nread = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
TALLOC_FREE(subreq);
if (tevent_req_error(req, state->vfs_aio_state.error)) {
return;
}
tevent_req_done(req);
}
static ssize_t fruit_pread_recv(struct tevent_req *req,
struct vfs_aio_state *vfs_aio_state)
{
struct fruit_pread_state *state = tevent_req_data(
req, struct fruit_pread_state);
if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
return -1;
}
*vfs_aio_state = state->vfs_aio_state;
return state->nread;
}
static ssize_t fruit_pwrite_meta_stream(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
AfpInfo *ai = NULL;
size_t nwritten;
bool ok;
ai = afpinfo_unpack(talloc_tos(), data);
if (ai == NULL) {
return -1;
}
nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
if (nwritten != n) {
return -1;
}
if (!ai_empty_finderinfo(ai)) {
return n;
}
ok = set_delete_on_close(
fsp,
true,
handle->conn->session_info->security_token,
handle->conn->session_info->unix_token);
if (!ok) {
DBG_ERR("set_delete_on_close on [%s] failed\n",
fsp_str_dbg(fsp));
return -1;
}
return n;
}
static ssize_t fruit_pwrite_meta_netatalk(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
struct adouble *ad = NULL;
AfpInfo *ai = NULL;
char *p = NULL;
int ret;
bool ok;
ai = afpinfo_unpack(talloc_tos(), data);
if (ai == NULL) {
return -1;
}
ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
if (ad == NULL) {
ad = ad_init(talloc_tos(), handle, ADOUBLE_META);
if (ad == NULL) {
return -1;
}
}
p = ad_get_entry(ad, ADEID_FINDERI);
if (p == NULL) {
DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
TALLOC_FREE(ad);
return -1;
}
memcpy(p, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
ret = ad_fset(ad, fsp);
if (ret != 0) {
DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
TALLOC_FREE(ad);
return -1;
}
TALLOC_FREE(ad);
if (!ai_empty_finderinfo(ai)) {
return n;
}
ok = set_delete_on_close(
fsp,
true,
handle->conn->session_info->security_token,
handle->conn->session_info->unix_token);
if (!ok) {
DBG_ERR("set_delete_on_close on [%s] failed\n",
fsp_str_dbg(fsp));
return -1;
}
return n;
}
static ssize_t fruit_pwrite_meta(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nwritten;
/*
* Writing an all 0 blob to the metadata stream
* results in the stream being removed on a macOS
* server. This ensures we behave the same and it
* verified by the "delete AFP_AfpInfo by writing all
* 0" test.
*/
if (n != AFP_INFO_SIZE || offset != 0) {
DBG_ERR("unexpected offset=%jd or size=%jd\n",
(intmax_t)offset, (intmax_t)n);
return -1;
}
switch (fio->config->meta) {
case FRUIT_META_STREAM:
nwritten = fruit_pwrite_meta_stream(handle, fsp, data,
n, offset);
break;
case FRUIT_META_NETATALK:
nwritten = fruit_pwrite_meta_netatalk(handle, fsp, data,
n, offset);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
return -1;
}
return nwritten;
}
static ssize_t fruit_pwrite_rsrc_stream(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
}
static ssize_t fruit_pwrite_rsrc_xattr(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
}
static ssize_t fruit_pwrite_rsrc_adouble(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
struct adouble *ad = NULL;
ssize_t nwritten;
int ret;
ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
if (ad == NULL) {
DBG_ERR("ad_get [%s] failed\n", fsp_str_dbg(fsp));
return -1;
}
nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
offset + ad_getentryoff(ad, ADEID_RFORK));
if (nwritten != n) {
DBG_ERR("Short write on [%s] [%zd/%zd]\n",
fsp_str_dbg(fsp), nwritten, n);
TALLOC_FREE(ad);
return -1;
}
if ((n + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
ad_setentrylen(ad, ADEID_RFORK, n + offset);
ret = ad_fset(ad, fsp);
if (ret != 0) {
DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
TALLOC_FREE(ad);
return -1;
}
}
TALLOC_FREE(ad);
return n;
}
static ssize_t fruit_pwrite_rsrc(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nwritten;
switch (fio->config->rsrc) {
case FRUIT_RSRC_STREAM:
nwritten = fruit_pwrite_rsrc_stream(handle, fsp, data, n, offset);
break;
case FRUIT_RSRC_ADFILE:
nwritten = fruit_pwrite_rsrc_adouble(handle, fsp, data, n, offset);
break;
case FRUIT_RSRC_XATTR:
nwritten = fruit_pwrite_rsrc_xattr(handle, fsp, data, n, offset);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
return -1;
}
return nwritten;
}
static ssize_t fruit_pwrite(vfs_handle_struct *handle,
files_struct *fsp, const void *data,
size_t n, off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
ssize_t nwritten;
DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
fsp_str_dbg(fsp), (intmax_t)offset, n);
if (fio == NULL) {
return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
}
if (fio->type == ADOUBLE_META) {
nwritten = fruit_pwrite_meta(handle, fsp, data, n, offset);
} else {
nwritten = fruit_pwrite_rsrc(handle, fsp, data, n, offset);
}
DBG_DEBUG("Path [%s] nwritten=%zd\n", fsp_str_dbg(fsp), nwritten);
return nwritten;
}
struct fruit_pwrite_state {
ssize_t nwritten;
struct vfs_aio_state vfs_aio_state;
};
static void fruit_pwrite_done(struct tevent_req *subreq);
static struct tevent_req *fruit_pwrite_send(
struct vfs_handle_struct *handle,
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct files_struct *fsp,
const void *data,
size_t n, off_t offset)
{
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
struct fruit_pwrite_state *state = NULL;
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
req = tevent_req_create(mem_ctx, &state,
struct fruit_pwrite_state);
if (req == NULL) {
return NULL;
}
if (fruit_must_handle_aio_stream(fio)) {
state->nwritten = SMB_VFS_PWRITE(fsp, data, n, offset);
if (state->nwritten != n) {
if (state->nwritten != -1) {
errno = EIO;
}
tevent_req_error(req, errno);
return tevent_req_post(req, ev);
}
tevent_req_done(req);
return tevent_req_post(req, ev);
}
subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp,
data, n, offset);
if (tevent_req_nomem(req, subreq)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, fruit_pwrite_done, req);
return req;
}
static void fruit_pwrite_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct fruit_pwrite_state *state = tevent_req_data(
req, struct fruit_pwrite_state);
state->nwritten = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
TALLOC_FREE(subreq);
if (tevent_req_error(req, state->vfs_aio_state.error)) {
return;
}
tevent_req_done(req);
}
static ssize_t fruit_pwrite_recv(struct tevent_req *req,
struct vfs_aio_state *vfs_aio_state)
{
struct fruit_pwrite_state *state = tevent_req_data(
req, struct fruit_pwrite_state);
if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
return -1;
}
*vfs_aio_state = state->vfs_aio_state;
return state->nwritten;
}
/**
* 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_stream(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
int ret;
if (follow_links) {
ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
} else {
ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
return ret;
}
static int fruit_stat_meta_netatalk(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
struct adouble *ad = NULL;
ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
if (ad == NULL) {
DBG_INFO("fruit_stat_meta %s: %s\n",
smb_fname_str_dbg(smb_fname), strerror(errno));
errno = ENOENT;
return -1;
}
TALLOC_FREE(ad);
/* 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_meta(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
struct fruit_config_data *config = NULL;
int ret;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->meta) {
case FRUIT_META_STREAM:
ret = fruit_stat_meta_stream(handle, smb_fname, follow_links);
break;
case FRUIT_META_NETATALK:
ret = fruit_stat_meta_netatalk(handle, smb_fname, follow_links);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", config->meta);
return -1;
}
return ret;
}
static int fruit_stat_rsrc_netatalk(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
struct adouble *ad = NULL;
int ret;
ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
if (ad == NULL) {
errno = ENOENT;
return -1;
}
/* Populate the stat struct with info from the base file. */
ret = fruit_stat_base(handle, smb_fname, follow_links);
if (ret != 0) {
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_rsrc_stream(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
int ret;
if (follow_links) {
ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
} else {
ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
return ret;
}
static int fruit_stat_rsrc_xattr(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
#ifdef HAVE_ATTROPEN
int ret;
int fd = -1;
/* Populate the stat struct with info from the base file. */
ret = fruit_stat_base(handle, smb_fname, follow_links);
if (ret != 0) {
return -1;
}
fd = attropen(smb_fname->base_name,
AFPRESOURCE_EA_NETATALK,
O_RDONLY);
if (fd == -1) {
return 0;
}
ret = sys_fstat(fd, &smb_fname->st, false);
if (ret != 0) {
close(fd);
DBG_ERR("fstat [%s:%s] failed\n", smb_fname->base_name,
AFPRESOURCE_EA_NETATALK);
return -1;
}
close(fd);
fd = -1;
smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
smb_fname->stream_name);
return ret;
#else
errno = ENOSYS;
return -1;
#endif
}
static int fruit_stat_rsrc(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
struct fruit_config_data *config = NULL;
int ret;
DBG_DEBUG("Path [%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:
ret = fruit_stat_rsrc_stream(handle, smb_fname, follow_links);
break;
case FRUIT_RSRC_XATTR:
ret = fruit_stat_rsrc_xattr(handle, smb_fname, follow_links);
break;
case FRUIT_RSRC_ADFILE:
ret = fruit_stat_rsrc_netatalk(handle, smb_fname, follow_links);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
return -1;
}
return ret;
}
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_stream(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
}
static int fruit_fstat_meta_netatalk(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
int ret;
ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
if (ret != 0) {
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_meta(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf,
struct fio *fio)
{
int ret;
DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
switch (fio->config->meta) {
case FRUIT_META_STREAM:
ret = fruit_fstat_meta_stream(handle, fsp, sbuf);
break;
case FRUIT_META_NETATALK:
ret = fruit_fstat_meta_netatalk(handle, fsp, sbuf);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
return -1;
}
DBG_DEBUG("Path [%s] ret [%d]\n", fsp_str_dbg(fsp), ret);
return ret;
}
static int fruit_fstat_rsrc_xattr(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
}
static int fruit_fstat_rsrc_stream(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
}
static int fruit_fstat_rsrc_adouble(vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
struct adouble *ad = NULL;
int ret;
/* Populate the stat struct with info from the base file. */
ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
if (ret == -1) {
return -1;
}
ad = ad_get(talloc_tos(), handle,
fsp->base_fsp->fsp_name,
ADOUBLE_RSRC);
if (ad == NULL) {
DBG_ERR("ad_get [%s] failed [%s]\n",
fsp_str_dbg(fsp), strerror(errno));
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);
TALLOC_FREE(ad);
return 0;
}
static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
SMB_STRUCT_STAT *sbuf, struct fio *fio)
{
int ret;
switch (fio->config->rsrc) {
case FRUIT_RSRC_STREAM:
ret = fruit_fstat_rsrc_stream(handle, fsp, sbuf);
break;
case FRUIT_RSRC_ADFILE:
ret = fruit_fstat_rsrc_adouble(handle, fsp, sbuf);
break;
case FRUIT_RSRC_XATTR:
ret = fruit_fstat_rsrc_xattr(handle, fsp, sbuf);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
return -1;
}
return ret;
}
static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
int rc;
if (fio == NULL) {
return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
}
DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
if (fio->type == ADOUBLE_META) {
rc = fruit_fstat_meta(handle, fsp, sbuf, fio);
} else {
rc = fruit_fstat_rsrc(handle, fsp, sbuf, fio);
}
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;
}
DBG_DEBUG("Path [%s] rc [%d] size [%"PRIdMAX"]\n",
fsp_str_dbg(fsp), rc, (intmax_t)sbuf->st_ex_size);
return rc;
}
static NTSTATUS delete_invalid_meta_stream(
vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct smb_filename *sname = NULL;
int ret;
bool ok;
ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams, AFPINFO_STREAM);
if (!ok) {
return NT_STATUS_INTERNAL_ERROR;
}
sname = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPINFO_STREAM_NAME,
NULL, 0);
if (sname == NULL) {
return NT_STATUS_NO_MEMORY;
}
ret = SMB_VFS_NEXT_UNLINK(handle, sname);
TALLOC_FREE(sname);
if (ret != 0) {
DBG_ERR("Removing [%s] failed\n", smb_fname_str_dbg(sname));
return map_nt_error_from_unix(errno);
}
return NT_STATUS_OK;
}
static NTSTATUS fruit_streaminfo_meta_stream(
vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct stream_struct *stream = *pstreams;
unsigned int num_streams = *pnum_streams;
struct smb_filename *sname = NULL;
char *full_name = NULL;
uint32_t name_hash;
struct share_mode_lock *lck = NULL;
struct file_id id = {0};
bool delete_on_close_set;
int i;
int ret;
NTSTATUS status;
bool ok;
for (i = 0; i < num_streams; i++) {
if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
break;
}
}
if (i == num_streams) {
return NT_STATUS_OK;
}
if (stream[i].size != AFP_INFO_SIZE) {
DBG_ERR("Removing invalid AFPINFO_STREAM size [%jd] from [%s]\n",
(intmax_t)stream[i].size, smb_fname_str_dbg(smb_fname));
return delete_invalid_meta_stream(handle, smb_fname, mem_ctx,
pnum_streams, pstreams);
}
/*
* Now check if there's a delete-on-close pending on the stream. If so,
* hide the stream. This behaviour was verified against a macOS 10.12
* SMB server.
*/
sname = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPINFO_STREAM_NAME,
NULL, 0);
if (sname == NULL) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
ret = SMB_VFS_NEXT_STAT(handle, sname);
if (ret != 0) {
status = map_nt_error_from_unix(errno);
goto out;
}
id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sname->st);
lck = get_existing_share_mode_lock(talloc_tos(), id);
if (lck == NULL) {
status = NT_STATUS_OK;
goto out;
}
full_name = talloc_asprintf(talloc_tos(),
"%s%s",
sname->base_name,
AFPINFO_STREAM);
if (full_name == NULL) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
status = file_name_hash(handle->conn, full_name, &name_hash);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
delete_on_close_set = is_delete_on_close_set(lck, name_hash);
if (delete_on_close_set) {
ok = del_fruit_stream(mem_ctx,
pnum_streams,
pstreams,
AFPINFO_STREAM);
if (!ok) {
status = NT_STATUS_INTERNAL_ERROR;
goto out;
}
}
status = NT_STATUS_OK;
out:
TALLOC_FREE(sname);
TALLOC_FREE(lck);
TALLOC_FREE(full_name);
return status;
}
static NTSTATUS fruit_streaminfo_meta_netatalk(
vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct stream_struct *stream = *pstreams;
unsigned int num_streams = *pnum_streams;
struct adouble *ad = NULL;
bool is_fi_empty;
int i;
bool ok;
/* Remove the Netatalk xattr from the list */
ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
":" NETATALK_META_XATTR ":$DATA");
if (!ok) {
return NT_STATUS_NO_MEMORY;
}
/*
* Check if there's a AFPINFO_STREAM from the VFS streams
* backend and if yes, remove it from the list
*/
for (i = 0; i < num_streams; i++) {
if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
break;
}
}
if (i < num_streams) {
DBG_WARNING("Unexpected AFPINFO_STREAM on [%s]\n",
smb_fname_str_dbg(smb_fname));
ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
AFPINFO_STREAM);
if (!ok) {
return NT_STATUS_INTERNAL_ERROR;
}
}
ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
if (ad == NULL) {
return NT_STATUS_OK;
}
is_fi_empty = ad_empty_finderinfo(ad);
TALLOC_FREE(ad);
if (is_fi_empty) {
return NT_STATUS_OK;
}
ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
smb_roundup(handle->conn, AFP_INFO_SIZE));
if (!ok) {
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
static NTSTATUS fruit_streaminfo_meta(vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct fruit_config_data *config = NULL;
NTSTATUS status;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return NT_STATUS_INTERNAL_ERROR);
switch (config->meta) {
case FRUIT_META_NETATALK:
status = fruit_streaminfo_meta_netatalk(handle, fsp, smb_fname,
mem_ctx, pnum_streams,
pstreams);
break;
case FRUIT_META_STREAM:
status = fruit_streaminfo_meta_stream(handle, fsp, smb_fname,
mem_ctx, pnum_streams,
pstreams);
break;
default:
return NT_STATUS_INTERNAL_ERROR;
}
return status;
}
static NTSTATUS fruit_streaminfo_rsrc_stream(
vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
bool ok;
ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
if (!ok) {
DBG_ERR("Filtering resource stream failed\n");
return NT_STATUS_INTERNAL_ERROR;
}
return NT_STATUS_OK;
}
static NTSTATUS fruit_streaminfo_rsrc_xattr(
vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
bool ok;
ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
if (!ok) {
DBG_ERR("Filtering resource stream failed\n");
return NT_STATUS_INTERNAL_ERROR;
}
return NT_STATUS_OK;
}
static NTSTATUS fruit_streaminfo_rsrc_adouble(
vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct stream_struct *stream = *pstreams;
unsigned int num_streams = *pnum_streams;
struct adouble *ad = NULL;
bool ok;
size_t rlen;
int i;
/*
* Check if there's a AFPRESOURCE_STREAM from the VFS streams backend
* and if yes, remove it from the list
*/
for (i = 0; i < num_streams; i++) {
if (strequal_m(stream[i].name, AFPRESOURCE_STREAM)) {
break;
}
}
if (i < num_streams) {
DBG_WARNING("Unexpected AFPRESOURCE_STREAM on [%s]\n",
smb_fname_str_dbg(smb_fname));
ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
AFPRESOURCE_STREAM);
if (!ok) {
return NT_STATUS_INTERNAL_ERROR;
}
}
ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
if (ad == NULL) {
return NT_STATUS_OK;
}
rlen = ad_getentrylen(ad, ADEID_RFORK);
TALLOC_FREE(ad);
if (rlen == 0) {
return NT_STATUS_OK;
}
ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
AFPRESOURCE_STREAM_NAME, rlen,
smb_roundup(handle->conn, rlen));
if (!ok) {
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_OK;
}
static NTSTATUS fruit_streaminfo_rsrc(vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct fruit_config_data *config = NULL;
NTSTATUS status;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return NT_STATUS_INTERNAL_ERROR);
switch (config->rsrc) {
case FRUIT_RSRC_STREAM:
status = fruit_streaminfo_rsrc_stream(handle, fsp, smb_fname,
mem_ctx, pnum_streams,
pstreams);
break;
case FRUIT_RSRC_XATTR:
status = fruit_streaminfo_rsrc_xattr(handle, fsp, smb_fname,
mem_ctx, pnum_streams,
pstreams);
break;
case FRUIT_RSRC_ADFILE:
status = fruit_streaminfo_rsrc_adouble(handle, fsp, smb_fname,
mem_ctx, pnum_streams,
pstreams);
break;
default:
return NT_STATUS_INTERNAL_ERROR;
}
return status;
}
static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
struct files_struct *fsp,
const struct smb_filename *smb_fname,
TALLOC_CTX *mem_ctx,
unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
struct fruit_config_data *config = NULL;
NTSTATUS status;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return NT_STATUS_UNSUCCESSFUL);
DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, smb_fname, mem_ctx,
pnum_streams, pstreams);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = fruit_streaminfo_meta(handle, fsp, smb_fname,
mem_ctx, pnum_streams, pstreams);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = fruit_streaminfo_rsrc(handle, fsp, smb_fname,
mem_ctx, pnum_streams, pstreams);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
return NT_STATUS_OK;
}
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;
struct fruit_config_data *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
return -1);
if ((config->meta != FRUIT_META_NETATALK) ||
null_timespec(ft->create_time))
{
return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
}
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, 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_set(ad, smb_fname);
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,
uint32_t mode,
off_t offset,
off_t len)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
if (fio == NULL) {
return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
}
/* Let the pwrite code path handle it. */
errno = ENOSYS;
return -1;
}
static int fruit_ftruncate_rsrc_xattr(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
if (offset == 0) {
return SMB_VFS_FREMOVEXATTR(fsp, AFPRESOURCE_EA_NETATALK);
}
#ifdef HAVE_ATTROPEN
return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
#endif
return 0;
}
static int fruit_ftruncate_rsrc_adouble(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
int rc;
struct adouble *ad = NULL;
off_t ad_off;
ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
if (ad == NULL) {
DBG_DEBUG("ad_get [%s] failed [%s]\n",
fsp_str_dbg(fsp), strerror(errno));
return -1;
}
ad_off = ad_getentryoff(ad, ADEID_RFORK);
rc = ftruncate(fsp->fh->fd, offset + ad_off);
if (rc != 0) {
TALLOC_FREE(ad);
return -1;
}
ad_setentrylen(ad, ADEID_RFORK, offset);
rc = ad_fset(ad, fsp);
if (rc != 0) {
DBG_ERR("ad_fset [%s] failed [%s]\n",
fsp_str_dbg(fsp), strerror(errno));
TALLOC_FREE(ad);
return -1;
}
TALLOC_FREE(ad);
return 0;
}
static int fruit_ftruncate_rsrc_stream(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
if (offset == 0) {
return SMB_VFS_NEXT_UNLINK(handle, fsp->fsp_name);
}
return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
}
static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
int ret;
switch (fio->config->rsrc) {
case FRUIT_RSRC_XATTR:
ret = fruit_ftruncate_rsrc_xattr(handle, fsp, offset);
break;
case FRUIT_RSRC_ADFILE:
ret = fruit_ftruncate_rsrc_adouble(handle, fsp, offset);
break;
case FRUIT_RSRC_STREAM:
ret = fruit_ftruncate_rsrc_stream(handle, fsp, offset);
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
return -1;
}
return ret;
}
static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
if (offset > 60) {
DBG_WARNING("ftruncate %s to %jd",
fsp_str_dbg(fsp), (intmax_t)offset);
/* OS X returns NT_STATUS_ALLOTTED_SPACE_EXCEEDED */
errno = EOVERFLOW;
return -1;
}
/* OS X returns success but does nothing */
DBG_INFO("ignoring ftruncate %s to %jd\n",
fsp_str_dbg(fsp), (intmax_t)offset);
return 0;
}
static int fruit_ftruncate(struct vfs_handle_struct *handle,
struct files_struct *fsp,
off_t offset)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
int ret;
DBG_DEBUG("Path [%s] offset [%"PRIdMAX"]\n", fsp_str_dbg(fsp),
(intmax_t)offset);
if (fio == NULL) {
return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
}
if (fio->type == ADOUBLE_META) {
ret = fruit_ftruncate_meta(handle, fsp, offset);
} else {
ret = fruit_ftruncate_rsrc(handle, fsp, offset);
}
DBG_DEBUG("Path [%s] result [%d]\n", fsp_str_dbg(fsp), ret);
return ret;
}
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;
files_struct *fsp = NULL;
status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
if (!NT_STATUS_IS_OK(status)) {
goto fail;
}
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;
}
fsp = *result;
if (global_fruit_config.nego_aapl) {
if (config->posix_rename && fsp->is_directory) {
/*
* Enable POSIX directory rename behaviour
*/
fsp->posix_flags |= FSP_POSIX_FLAGS_RENAME;
}
}
/*
* If this is a plain open for existing files, opening an 0
* byte size resource fork MUST fail with
* NT_STATUS_OBJECT_NAME_NOT_FOUND.
*
* Cf the vfs_fruit torture tests in test_rfork_create().
*/
if (is_afpresource_stream(fsp->fsp_name) &&
create_disposition == FILE_OPEN)
{
if (fsp->fsp_name->st.st_ex_size == 0) {
status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
goto fail;
}
}
if (is_ntfs_stream_smb_fname(smb_fname)
|| fsp->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(10, ("fruit_create_file: %s\n", nt_errstr(status)));
if (fsp) {
close_file(req, fsp, ERROR_CLOSE);
*result = fsp = 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 (!global_fruit_config.nego_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_t 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 (!global_fruit_config.nego_aapl) {
return NT_STATUS_OK;
}
if (!config->unix_info_enabled) {
return NT_STATUS_OK;
}
/* First remove any existing ACE's with NFS style mode/uid/gid SIDs. */
status = remove_virtual_nfs_aces(*ppdesc);
if (!NT_STATUS_IS_OK(status)) {
DBG_WARNING("failed to remove MS NFS style ACEs\n");
return status;
}
/* 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_t security_info_sent,
const struct security_descriptor *orig_psd)
{
NTSTATUS status;
bool do_chmod;
mode_t ms_nfs_mode = 0;
int result;
struct security_descriptor *psd = NULL;
uint32_t orig_num_aces = 0;
if (orig_psd->dacl != NULL) {
orig_num_aces = orig_psd->dacl->num_aces;
}
psd = security_descriptor_copy(talloc_tos(), orig_psd);
if (psd == NULL) {
return NT_STATUS_NO_MEMORY;
}
DBG_DEBUG("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)));
TALLOC_FREE(psd);
return status;
}
/*
* If only ms_nfs ACE entries were sent, ensure we set the DACL
* sent/present flags correctly now we've removed them.
*/
if (orig_num_aces != 0) {
/*
* Are there any ACE's left ?
*/
if (psd->dacl->num_aces == 0) {
/* No - clear the DACL sent/present flags. */
security_info_sent &= ~SECINFO_DACL;
psd->type &= ~SEC_DESC_DACL_PRESENT;
}
}
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)));
TALLOC_FREE(psd);
return status;
}
if (do_chmod) {
if (fsp->fh->fd != -1) {
result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
} else {
result = SMB_VFS_CHMOD(fsp->conn,
fsp->fsp_name,
ms_nfs_mode);
}
if (result != 0) {
DEBUG(1, ("chmod: %s, result: %d, %04o error %s\n", fsp_str_dbg(fsp),
result, (unsigned)ms_nfs_mode,
strerror(errno)));
status = map_nt_error_from_unix(errno);
TALLOC_FREE(psd);
return status;
}
}
TALLOC_FREE(psd);
return NT_STATUS_OK;
}
static struct vfs_offload_ctx *fruit_offload_ctx;
struct fruit_offload_read_state {
struct vfs_handle_struct *handle;
struct tevent_context *ev;
files_struct *fsp;
uint32_t fsctl;
DATA_BLOB token;
};
static void fruit_offload_read_done(struct tevent_req *subreq);
static struct tevent_req *fruit_offload_read_send(
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct vfs_handle_struct *handle,
files_struct *fsp,
uint32_t fsctl,
uint32_t ttl,
off_t offset,
size_t to_copy)
{
struct tevent_req *req = NULL;
struct tevent_req *subreq = NULL;
struct fruit_offload_read_state *state = NULL;
req = tevent_req_create(mem_ctx, &state,
struct fruit_offload_read_state);
if (req == NULL) {
return NULL;
}
*state = (struct fruit_offload_read_state) {
.handle = handle,
.ev = ev,
.fsp = fsp,
.fsctl = fsctl,
};
subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
fsctl, ttl, offset, to_copy);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, fruit_offload_read_done, req);
return req;
}
static void fruit_offload_read_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct fruit_offload_read_state *state = tevent_req_data(
req, struct fruit_offload_read_state);
NTSTATUS status;
status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
state->handle,
state,
&state->token);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
if (state->fsctl != FSCTL_SRV_REQUEST_RESUME_KEY) {
tevent_req_done(req);
return;
}
status = vfs_offload_token_ctx_init(state->fsp->conn->sconn->client,
&fruit_offload_ctx);
if (tevent_req_nterror(req, status)) {
return;
}
status = vfs_offload_token_db_store_fsp(fruit_offload_ctx,
state->fsp,
&state->token);
if (tevent_req_nterror(req, status)) {
return;
}
tevent_req_done(req);
return;
}
static NTSTATUS fruit_offload_read_recv(struct tevent_req *req,
struct vfs_handle_struct *handle,
TALLOC_CTX *mem_ctx,
DATA_BLOB *token)
{
struct fruit_offload_read_state *state = tevent_req_data(
req, struct fruit_offload_read_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
tevent_req_received(req);
return status;
}
token->length = state->token.length;
token->data = talloc_move(mem_ctx, &state->token.data);
tevent_req_received(req);
return NT_STATUS_OK;
}
struct fruit_offload_write_state {
struct vfs_handle_struct *handle;
off_t copied;
struct files_struct *src_fsp;
struct files_struct *dst_fsp;
bool is_copyfile;
};
static void fruit_offload_write_done(struct tevent_req *subreq);
static struct tevent_req *fruit_offload_write_send(struct vfs_handle_struct *handle,
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
uint32_t fsctl,
DATA_BLOB *token,
off_t transfer_offset,
struct files_struct *dest_fsp,
off_t dest_off,
off_t num)
{
struct tevent_req *req, *subreq;
struct fruit_offload_write_state *state;
NTSTATUS status;
struct fruit_config_data *config;
off_t src_off = transfer_offset;
files_struct *src_fsp = NULL;
off_t to_copy = num;
bool copyfile_enabled = false;
DEBUG(10,("soff: %ju, doff: %ju, len: %ju\n",
(uintmax_t)src_off, (uintmax_t)dest_off, (uintmax_t)num));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return NULL);
req = tevent_req_create(mem_ctx, &state,
struct fruit_offload_write_state);
if (req == NULL) {
return NULL;
}
state->handle = handle;
state->dst_fsp = dest_fsp;
switch (fsctl) {
case FSCTL_SRV_COPYCHUNK:
case FSCTL_SRV_COPYCHUNK_WRITE:
copyfile_enabled = config->copyfile_enabled;
break;
default:
break;
}
/*
* Check if this a OS X copyfile style copychunk request with
* a requested chunk count of 0 that was translated to a
* offload_write_send VFS call overloading the parameters src_off
* = dest_off = num = 0.
*/
if (copyfile_enabled && num == 0 && src_off == 0 && dest_off == 0) {
status = vfs_offload_token_db_fetch_fsp(
fruit_offload_ctx, token, &src_fsp);
if (tevent_req_nterror(req, status)) {
return tevent_req_post(req, ev);
}
state->src_fsp = src_fsp;
status = vfs_stat_fsp(src_fsp);
if (tevent_req_nterror(req, status)) {
return tevent_req_post(req, ev);
}
to_copy = src_fsp->fsp_name->st.st_ex_size;
state->is_copyfile = true;
}
subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle,
mem_ctx,
ev,
fsctl,
token,
transfer_offset,
dest_fsp,
dest_off,
to_copy);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, fruit_offload_write_done, req);
return req;
}
static void fruit_offload_write_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct fruit_offload_write_state *state = tevent_req_data(
req, struct fruit_offload_write_state);
NTSTATUS status;
unsigned int num_streams = 0;
struct stream_struct *streams = NULL;
unsigned int i;
struct smb_filename *src_fname_tmp = NULL;
struct smb_filename *dst_fname_tmp = NULL;
status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
subreq,
&state->copied);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
if (!state->is_copyfile) {
tevent_req_done(req);
return;
}
/*
* Now copy all remaining streams. We know the share supports
* streams, because we're in vfs_fruit. We don't do this async
* because streams are few and small.
*/
status = vfs_streaminfo(state->handle->conn, state->src_fsp,
state->src_fsp->fsp_name,
req, &num_streams, &streams);
if (tevent_req_nterror(req, status)) {
return;
}
if (num_streams == 1) {
/* There is always one stream, ::$DATA. */
tevent_req_done(req);
return;
}
for (i = 0; i < num_streams; i++) {
DEBUG(10, ("%s: stream: '%s'/%zu\n",
__func__, streams[i].name, (size_t)streams[i].size));
src_fname_tmp = synthetic_smb_fname(
req,
state->src_fsp->fsp_name->base_name,
streams[i].name,
NULL,
state->src_fsp->fsp_name->flags);
if (tevent_req_nomem(src_fname_tmp, req)) {
return;
}
if (is_ntfs_default_stream_smb_fname(src_fname_tmp)) {
TALLOC_FREE(src_fname_tmp);
continue;
}
dst_fname_tmp = synthetic_smb_fname(
req,
state->dst_fsp->fsp_name->base_name,
streams[i].name,
NULL,
state->dst_fsp->fsp_name->flags);
if (tevent_req_nomem(dst_fname_tmp, req)) {
TALLOC_FREE(src_fname_tmp);
return;
}
status = copy_file(req,
state->handle->conn,
src_fname_tmp,
dst_fname_tmp,
OPENX_FILE_CREATE_IF_NOT_EXIST,
0, false);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("%s: copy %s to %s failed: %s\n", __func__,
smb_fname_str_dbg(src_fname_tmp),
smb_fname_str_dbg(dst_fname_tmp),
nt_errstr(status)));
TALLOC_FREE(src_fname_tmp);
TALLOC_FREE(dst_fname_tmp);
tevent_req_nterror(req, status);
return;
}
TALLOC_FREE(src_fname_tmp);
TALLOC_FREE(dst_fname_tmp);
}
TALLOC_FREE(streams);
TALLOC_FREE(src_fname_tmp);
TALLOC_FREE(dst_fname_tmp);
tevent_req_done(req);
}
static NTSTATUS fruit_offload_write_recv(struct vfs_handle_struct *handle,
struct tevent_req *req,
off_t *copied)
{
struct fruit_offload_write_state *state = tevent_req_data(
req, struct fruit_offload_write_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
DEBUG(1, ("server side copy chunk failed: %s\n",
nt_errstr(status)));
*copied = 0;
tevent_req_received(req);
return status;
}
*copied = state->copied;
tevent_req_received(req);
return NT_STATUS_OK;
}
static char *fruit_get_bandsize_line(char **lines, int numlines)
{
static regex_t re;
static bool re_initialized = false;
int i;
int ret;
if (!re_initialized) {
ret = regcomp(&re, "^[[:blank:]]*<key>band-size</key>$", 0);
if (ret != 0) {
return NULL;
}
re_initialized = true;
}
for (i = 0; i < numlines; i++) {
regmatch_t matches[1];
ret = regexec(&re, lines[i], 1, matches, 0);
if (ret == 0) {
/*
* Check if the match was on the last line, sa we want
* the subsequent line.
*/
if (i + 1 == numlines) {
return NULL;
}
return lines[i + 1];
}
if (ret != REG_NOMATCH) {
return NULL;
}
}
return NULL;
}
static bool fruit_get_bandsize_from_line(char *line, size_t *_band_size)
{
static regex_t re;
static bool re_initialized = false;
regmatch_t matches[2];
uint64_t band_size;
int ret;
bool ok;
if (!re_initialized) {
ret = regcomp(&re,
"^[[:blank:]]*"
"<integer>\\([[:digit:]]*\\)</integer>$",
0);
if (ret != 0) {
return false;
}
re_initialized = true;
}
ret = regexec(&re, line, 2, matches, 0);
if (ret != 0) {
DBG_ERR("regex failed [%s]\n", line);
return false;
}
line[matches[1].rm_eo] = '\0';
ok = conv_str_u64(&line[matches[1].rm_so], &band_size);
if (!ok) {
return false;
}
*_band_size = (size_t)band_size;
return true;
}
/*
* This reads and parses an Info.plist from a TM sparsebundle looking for the
* "band-size" key and value.
*/
static bool fruit_get_bandsize(vfs_handle_struct *handle,
const char *dir,
size_t *band_size)
{
#define INFO_PLIST_MAX_SIZE 64*1024
char *plist = NULL;
struct smb_filename *smb_fname = NULL;
files_struct *fsp = NULL;
uint8_t *file_data = NULL;
char **lines = NULL;
char *band_size_line = NULL;
size_t plist_file_size;
ssize_t nread;
int numlines;
int ret;
bool ok = false;
NTSTATUS status;
plist = talloc_asprintf(talloc_tos(),
"%s/%s/Info.plist",
handle->conn->connectpath,
dir);
if (plist == NULL) {
ok = false;
goto out;
}
smb_fname = synthetic_smb_fname(talloc_tos(), plist, NULL, NULL, 0);
if (smb_fname == NULL) {
ok = false;
goto out;
}
ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
if (ret != 0) {
DBG_INFO("Ignoring Sparsebundle without Info.plist [%s]\n", dir);
ok = true;
goto out;
}
plist_file_size = smb_fname->st.st_ex_size;
if (plist_file_size > INFO_PLIST_MAX_SIZE) {
DBG_INFO("%s is too large, ignoring\n", plist);
ok = true;
goto out;
}
status = SMB_VFS_NEXT_CREATE_FILE(
handle, /* conn */
NULL, /* req */
0, /* root_dir_fid */
smb_fname, /* fname */
FILE_GENERIC_READ, /* access_mask */
FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
FILE_OPEN, /* create_disposition */
0, /* create_options */
0, /* file_attributes */
INTERNAL_OPEN_ONLY, /* oplock_request */
NULL, /* lease */
0, /* allocation_size */
0, /* private_flags */
NULL, /* sd */
NULL, /* ea_list */
&fsp, /* result */
NULL, /* psbuf */
NULL, NULL); /* create context */
if (!NT_STATUS_IS_OK(status)) {
DBG_INFO("Opening [%s] failed [%s]\n",
smb_fname_str_dbg(smb_fname), nt_errstr(status));
ok = false;
goto out;
}
file_data = talloc_array(talloc_tos(), uint8_t, plist_file_size);
if (file_data == NULL) {
ok = false;
goto out;
}
nread = SMB_VFS_NEXT_PREAD(handle, fsp, file_data, plist_file_size, 0);
if (nread != plist_file_size) {
DBG_ERR("Short read on [%s]: %zu/%zd\n",
fsp_str_dbg(fsp), nread, plist_file_size);
ok = false;
goto out;
}
status = close_file(NULL, fsp, NORMAL_CLOSE);
fsp = NULL;
if (!NT_STATUS_IS_OK(status)) {
DBG_ERR("close_file failed: %s\n", nt_errstr(status));
ok = false;
goto out;
}
lines = file_lines_parse((char *)file_data,
plist_file_size,
&numlines,
talloc_tos());
if (lines == NULL) {
ok = false;
goto out;
}
band_size_line = fruit_get_bandsize_line(lines, numlines);
if (band_size_line == NULL) {
DBG_ERR("Didn't find band-size key in [%s]\n",
smb_fname_str_dbg(smb_fname));
ok = false;
goto out;
}
ok = fruit_get_bandsize_from_line(band_size_line, band_size);
if (!ok) {
DBG_ERR("fruit_get_bandsize_from_line failed\n");
goto out;
}
DBG_DEBUG("Parsed band-size [%zu] for [%s]\n", *band_size, plist);
out:
if (fsp != NULL) {
status = close_file(NULL, fsp, NORMAL_CLOSE);
if (!NT_STATUS_IS_OK(status)) {
DBG_ERR("close_file failed: %s\n", nt_errstr(status));
}
fsp = NULL;
}
TALLOC_FREE(plist);
TALLOC_FREE(smb_fname);
TALLOC_FREE(file_data);
TALLOC_FREE(lines);
return ok;
}
struct fruit_disk_free_state {
off_t total_size;
};
static bool fruit_get_num_bands(vfs_handle_struct *handle,
char *bundle,
size_t *_nbands)
{
char *path = NULL;
struct smb_filename *bands_dir = NULL;
DIR *d = NULL;
struct dirent *e = NULL;
size_t nbands;
int ret;
path = talloc_asprintf(talloc_tos(),
"%s/%s/bands",
handle->conn->connectpath,
bundle);
if (path == NULL) {
return false;
}
bands_dir = synthetic_smb_fname(talloc_tos(),
path,
NULL,
NULL,
0);
TALLOC_FREE(path);
if (bands_dir == NULL) {
return false;
}
d = SMB_VFS_NEXT_OPENDIR(handle, bands_dir, NULL, 0);
if (d == NULL) {
TALLOC_FREE(bands_dir);
return false;
}
nbands = 0;
for (e = SMB_VFS_NEXT_READDIR(handle, d, NULL);
e != NULL;
e = SMB_VFS_NEXT_READDIR(handle, d, NULL))
{
if (ISDOT(e->d_name) || ISDOTDOT(e->d_name)) {
continue;
}
nbands++;
}
ret = SMB_VFS_NEXT_CLOSEDIR(handle, d);
if (ret != 0) {
TALLOC_FREE(bands_dir);
return false;
}
DBG_DEBUG("%zu bands in [%s]\n", nbands, smb_fname_str_dbg(bands_dir));
TALLOC_FREE(bands_dir);
*_nbands = nbands;
return true;
}
static bool fruit_tmsize_do_dirent(vfs_handle_struct *handle,
struct fruit_disk_free_state *state,
struct dirent *e)
{
bool ok;
char *p = NULL;
size_t sparsebundle_strlen = strlen("sparsebundle");
size_t bandsize = 0;
size_t nbands;
off_t tm_size;
p = strstr(e->d_name, "sparsebundle");
if (p == NULL) {
return true;
}
if (p[sparsebundle_strlen] != '\0') {
return true;
}
DBG_DEBUG("Processing sparsebundle [%s]\n", e->d_name);
ok = fruit_get_bandsize(handle, e->d_name, &bandsize);
if (!ok) {
/*
* Beware of race conditions: this may be an uninitialized
* Info.plist that a client is just creating. We don't want let
* this to trigger complete failure.
*/
DBG_ERR("Processing sparsebundle [%s] failed\n", e->d_name);
return true;
}
ok = fruit_get_num_bands(handle, e->d_name, &nbands);
if (!ok) {
/*
* Beware of race conditions: this may be a backup sparsebundle
* in an early stage lacking a bands subdirectory. We don't want
* let this to trigger complete failure.
*/
DBG_ERR("Processing sparsebundle [%s] failed\n", e->d_name);
return true;
}
tm_size = bandsize * nbands;
if (tm_size > UINT64_MAX) {
DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
bandsize, nbands);
return false;
}
if (state->total_size + tm_size < state->total_size) {
DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
bandsize, nbands);
return false;
}
state->total_size += tm_size;
DBG_DEBUG("[%s] tm_size [%jd] total_size [%jd]\n",
e->d_name, (intmax_t)tm_size, (intmax_t)state->total_size);
return true;
}
/**
* Calculate used size of a TimeMachine volume
*
* This assumes that the volume is used only for TimeMachine.
*
* - readdir(basedir of share), then
* - for every element that matches regex "^\(.*\)\.sparsebundle$" :
* - parse "\1.sparsebundle/Info.plist" and read the band-size XML key
* - count band files in "\1.sparsebundle/bands/"
* - calculate used size of all bands: band_count * band_size
**/
static uint64_t fruit_disk_free(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
uint64_t *_bsize,
uint64_t *_dfree,
uint64_t *_dsize)
{
struct fruit_config_data *config = NULL;
struct fruit_disk_free_state state = {0};
DIR *d = NULL;
struct dirent *e = NULL;
uint64_t dfree;
uint64_t dsize;
int ret;
bool ok;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return UINT64_MAX);
if (!config->time_machine ||
config->time_machine_max_size == 0)
{
return SMB_VFS_NEXT_DISK_FREE(handle,
smb_fname,
_bsize,
_dfree,
_dsize);
}
d = SMB_VFS_NEXT_OPENDIR(handle, smb_fname, NULL, 0);
if (d == NULL) {
return UINT64_MAX;
}
for (e = SMB_VFS_NEXT_READDIR(handle, d, NULL);
e != NULL;
e = SMB_VFS_NEXT_READDIR(handle, d, NULL))
{
ok = fruit_tmsize_do_dirent(handle, &state, e);
if (!ok) {
SMB_VFS_NEXT_CLOSEDIR(handle, d);
return UINT64_MAX;
}
}
ret = SMB_VFS_NEXT_CLOSEDIR(handle, d);
if (ret != 0) {
return UINT64_MAX;
}
dsize = config->time_machine_max_size / 512;
dfree = dsize - (state.total_size / 512);
if (dfree > dsize) {
dfree = 0;
}
*_bsize = 512;
*_dsize = dsize;
*_dfree = dfree;
return dfree / 2;
}
static struct vfs_fn_pointers vfs_fruit_fns = {
.connect_fn = fruit_connect,
.disk_free_fn = fruit_disk_free,
/* 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,
.pread_send_fn = fruit_pread_send,
.pread_recv_fn = fruit_pread_recv,
.pwrite_send_fn = fruit_pwrite_send,
.pwrite_recv_fn = fruit_pwrite_recv,
.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,
.offload_read_send_fn = fruit_offload_read_send,
.offload_read_recv_fn = fruit_offload_read_recv,
.offload_write_send_fn = fruit_offload_write_send,
.offload_write_recv_fn = fruit_offload_write_recv,
/* NT ACL operations */
.fget_nt_acl_fn = fruit_fget_nt_acl,
.fset_nt_acl_fn = fruit_fset_nt_acl,
};
static_decl_vfs;
NTSTATUS vfs_fruit_init(TALLOC_CTX *ctx)
{
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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