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samba-mirror/source3/modules/vfs_fruit.c
Ralph Boehme d3c16d93d1 vfs_fruit: pass down cwdfsp as dirfsp in fruit_open() 
Not yet used, that comes when we add fruit_openat(). Passing cwdfsp as dirfsp
ensures when calling openat() we get the same behaviour as open().

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2020-05-21 20:38:31 +00:00

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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 "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/tevent_ntstatus.h"
#include "lib/util/tevent_unix.h"
#include "offload_token.h"
#include "string_replace.h"
#include "hash_inode.h"
#include "lib/adouble.h"
#include "lib/util_macstreams.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 characters 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"
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;
bool wipe_intentionally_left_blank_rfork;
bool delete_empty_adfiles;
/*
* 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}
};
struct fio {
/* tcon config handle */
struct fruit_config_data *config;
/* Denote stream type, meta or rsrc */
adouble_type_t type;
/* Whether the create created the stream */
bool created;
/*
* AFP_AfpInfo stream created, but not written yet, thus still a fake
* pipe fd. This is set to true in fruit_open_meta if there was no
* existing stream but the caller requested O_CREAT. It is later set to
* false when we get a write on the stream that then does open and
* create the stream.
*/
bool fake_fd;
int flags;
int mode;
};
/*****************************************************************************
* Helper functions
*****************************************************************************/
/**
* 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(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"zero_file_id", false);
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);
}
config->wipe_intentionally_left_blank_rfork = lp_parm_bool(
SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"wipe_intentionally_left_blank_rfork", false);
config->delete_empty_adfiles = lp_parm_bool(
SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
"delete_empty_adfiles", false);
SMB_VFS_HANDLE_SET_DATA(handle, config,
NULL, struct fruit_config_data,
return -1);
return 0;
}
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);
ARRAY_DEL_ELEMENT(tmp, i, *num_streams);
*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);
ARRAY_DEL_ELEMENT(tmp, i, *num_streams);
*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 = 0;
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 existing 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 = 0;
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 share_mode)
{
NTSTATUS status = NT_STATUS_OK;
off_t off;
bool share_for_read = (share_mode & FILE_SHARE_READ);
bool share_for_write = (share_mode & FILE_SHARE_WRITE);
bool netatalk_already_open_for_reading = false;
bool netatalk_already_open_for_writing = false;
bool netatalk_already_open_with_deny_read = false;
bool netatalk_already_open_with_deny_write = false;
struct GUID req_guid = GUID_random();
/* FIXME: hardcoded data fork, add resource fork */
enum apple_fork fork_type = APPLE_FORK_DATA;
DBG_DEBUG("fruit_check_access: %s, am: %s/%s, sm: 0x%x\n",
fsp_str_dbg(fsp),
access_mask & FILE_READ_DATA ? "READ" :"-",
access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
share_mode);
if (fsp->fh->fd == -1) {
return NT_STATUS_OK;
}
/* Read NetATalk opens and deny modes on the file. */
netatalk_already_open_for_reading = test_netatalk_lock(fsp,
access_to_netatalk_brl(fork_type,
FILE_READ_DATA));
netatalk_already_open_with_deny_read = test_netatalk_lock(fsp,
denymode_to_netatalk_brl(fork_type,
DENY_READ));
netatalk_already_open_for_writing = test_netatalk_lock(fsp,
access_to_netatalk_brl(fork_type,
FILE_WRITE_DATA));
netatalk_already_open_with_deny_write = test_netatalk_lock(fsp,
denymode_to_netatalk_brl(fork_type,
DENY_WRITE));
/* If there are any conflicts - sharing violation. */
if ((access_mask & FILE_READ_DATA) &&
netatalk_already_open_with_deny_read) {
return NT_STATUS_SHARING_VIOLATION;
}
if (!share_for_read &&
netatalk_already_open_for_reading) {
return NT_STATUS_SHARING_VIOLATION;
}
if ((access_mask & FILE_WRITE_DATA) &&
netatalk_already_open_with_deny_write) {
return NT_STATUS_SHARING_VIOLATION;
}
if (!share_for_write &&
netatalk_already_open_for_writing) {
return NT_STATUS_SHARING_VIOLATION;
}
if (!(access_mask & FILE_READ_DATA)) {
/*
* Nothing we can do here, we need read access
* to set locks.
*/
return NT_STATUS_OK;
}
/* Set NetAtalk locks matching our access */
if (access_mask & FILE_READ_DATA) {
off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
req_guid.time_hi_and_version = __LINE__;
status = do_lock(
fsp,
talloc_tos(),
&req_guid,
fsp->op->global->open_persistent_id,
1,
off,
READ_LOCK,
POSIX_LOCK,
NULL,
NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
if (!share_for_read) {
off = denymode_to_netatalk_brl(fork_type, DENY_READ);
req_guid.time_hi_and_version = __LINE__;
status = do_lock(
fsp,
talloc_tos(),
&req_guid,
fsp->op->global->open_persistent_id,
1,
off,
READ_LOCK,
POSIX_LOCK,
NULL,
NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
if (access_mask & FILE_WRITE_DATA) {
off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
req_guid.time_hi_and_version = __LINE__;
status = do_lock(
fsp,
talloc_tos(),
&req_guid,
fsp->op->global->open_persistent_id,
1,
off,
READ_LOCK,
POSIX_LOCK,
NULL,
NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
if (!share_for_write) {
off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
req_guid.time_hi_and_version = __LINE__;
status = do_lock(
fsp,
talloc_tos(),
&req_guid,
fsp->op->global->open_persistent_id,
1,
off,
READ_LOCK,
POSIX_LOCK,
NULL,
NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
return NT_STATUS_OK;
}
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;
}
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->twrp,
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 */
&handle->conn->cwd_fsp, /* dirfsp */
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,
smb_fname->twrp,
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:
rfork_size = readdir_attr_rfork_size_adouble(handle,
smb_fname);
break;
case FRUIT_RSRC_XATTR:
case FRUIT_RSRC_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;
const struct loadparm_substitution *lp_sub =
loadparm_s3_global_substitution();
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(), lp_sub, 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",
macos_string_replace_map);
}
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_fake_fd(void)
{
int pipe_fds[2];
int fd;
int ret;
/*
* Return a valid fd, but ensure any attempt to use it returns
* an error (EPIPE). Once we get a write on the handle, we open
* the real fd.
*/
ret = pipe(pipe_fds);
if (ret != 0) {
return -1;
}
fd = pipe_fds[0];
close(pipe_fds[1]);
return fd;
}
static int fruit_open_meta_stream(vfs_handle_struct *handle,
const struct files_struct *dirfsp,
struct smb_filename *smb_fname,
files_struct *fsp,
int flags,
mode_t mode)
{
struct fruit_config_data *config = NULL;
struct fio *fio = NULL;
int open_flags = flags & ~O_CREAT;
int fd;
DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
fio->type = ADOUBLE_META;
fio->config = config;
fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, open_flags, mode);
if (fd != -1) {
return fd;
}
if (!(flags & O_CREAT)) {
VFS_REMOVE_FSP_EXTENSION(handle, fsp);
return -1;
}
fd = fruit_fake_fd();
if (fd == -1) {
VFS_REMOVE_FSP_EXTENSION(handle, fsp);
return -1;
}
fio->fake_fd = true;
fio->flags = flags;
fio->mode = mode;
return fd;
}
static int fruit_open_meta_netatalk(vfs_handle_struct *handle,
const struct files_struct *dirfsp,
struct smb_filename *smb_fname,
files_struct *fsp,
int flags,
mode_t mode)
{
struct fruit_config_data *config = NULL;
struct fio *fio = NULL;
struct adouble *ad = NULL;
bool meta_exists = false;
int fd;
DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
if (ad != NULL) {
meta_exists = true;
}
TALLOC_FREE(ad);
if (!meta_exists && !(flags & O_CREAT)) {
errno = ENOENT;
return -1;
}
fd = fruit_fake_fd();
if (fd == -1) {
return -1;
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
fio->type = ADOUBLE_META;
fio->config = config;
fio->fake_fd = true;
fio->flags = flags;
fio->mode = mode;
return fd;
}
static int fruit_open_meta(vfs_handle_struct *handle,
const struct files_struct *dirfsp,
struct smb_filename *smb_fname,
files_struct *fsp, int flags, mode_t mode)
{
int fd;
struct fruit_config_data *config = 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, dirfsp, smb_fname,
fsp, flags, mode);
break;
case FRUIT_META_NETATALK:
fd = fruit_open_meta_netatalk(handle, dirfsp, 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);
return fd;
}
static int fruit_open_rsrc_adouble(vfs_handle_struct *handle,
const struct files_struct *dirfsp,
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;
}
/* We always need read/write access for the metadata header too */
flags &= ~(O_RDONLY | 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, ADOUBLE_RSRC);
if (ad == NULL) {
rc = -1;
goto exit;
}
fsp->fh->fd = hostfd;
rc = ad_fset(handle, 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,
const struct files_struct *dirfsp,
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,
const struct files_struct *dirfsp,
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->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, dirfsp, smb_fname,
fsp, flags, mode);
break;
case FRUIT_RSRC_XATTR:
fd = fruit_open_rsrc_xattr(handle, dirfsp, 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)
{
struct files_struct *fspcwd = NULL;
int saved_errno = 0;
int fd;
NTSTATUS status;
DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
if (!is_named_stream(smb_fname)) {
return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
status = vfs_at_fspcwd(talloc_tos(),
handle->conn,
&fspcwd);
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
return -1;
}
if (is_afpinfo_stream(smb_fname->stream_name)) {
fd = fruit_open_meta(handle,
fspcwd,
smb_fname,
fsp,
flags,
mode);
} else if (is_afpresource_stream(smb_fname->stream_name)) {
fd = fruit_open_rsrc(handle,
fspcwd,
smb_fname,
fsp,
flags,
mode);
} else {
fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
}
if (fd == -1) {
saved_errno = errno;
}
TALLOC_FREE(fspcwd);
DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
if (saved_errno != 0) {
errno = saved_errno;
}
return fd;
}
static int fruit_close_meta(vfs_handle_struct *handle,
files_struct *fsp)
{
int ret;
struct fruit_config_data *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->meta) {
case FRUIT_META_STREAM:
ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
break;
case FRUIT_META_NETATALK:
ret = close(fsp->fh->fd);
fsp->fh->fd = -1;
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", config->meta);
return -1;
}
return ret;
}
static int fruit_close_rsrc(vfs_handle_struct *handle,
files_struct *fsp)
{
int ret;
struct fruit_config_data *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
switch (config->rsrc) {
case FRUIT_RSRC_STREAM:
case FRUIT_RSRC_ADFILE:
ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
break;
case FRUIT_RSRC_XATTR:
ret = close(fsp->fh->fd);
fsp->fh->fd = -1;
break;
default:
DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
return -1;
}
return ret;
}
static int fruit_close(vfs_handle_struct *handle,
files_struct *fsp)
{
int ret;
int fd;
fd = fsp->fh->fd;
DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(fsp->fsp_name), fd);
if (!is_named_stream(fsp->fsp_name)) {
return SMB_VFS_NEXT_CLOSE(handle, fsp);
}
if (is_afpinfo_stream(fsp->fsp_name->stream_name)) {
ret = fruit_close_meta(handle, fsp);
} else if (is_afpresource_stream(fsp->fsp_name->stream_name)) {
ret = fruit_close_rsrc(handle, fsp);
} else {
ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
}
return ret;
}
static int fruit_renameat(struct vfs_handle_struct *handle,
files_struct *srcfsp,
const struct smb_filename *smb_fname_src,
files_struct *dstfsp,
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_RENAMEAT(handle,
srcfsp,
smb_fname_src,
dstfsp,
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_RENAMEAT(handle,
srcfsp,
src_adp_smb_fname,
dstfsp,
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,
struct files_struct *dirfsp,
const struct smb_filename *smb_fname)
{
return SMB_VFS_NEXT_UNLINKAT(handle,
dirfsp,
smb_fname,
0);
}
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,
struct files_struct *dirfsp,
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,
dirfsp,
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,
struct files_struct *dirfsp,
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_UNLINKAT(handle,
dirfsp,
smb_fname,
0);
if ((ret != 0) && (errno == ENOENT) && force_unlink) {
ret = 0;
}
return ret;
}
static int fruit_unlink_rsrc_adouble(vfs_handle_struct *handle,
struct files_struct *dirfsp,
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_UNLINKAT(handle,
dirfsp,
adp_smb_fname,
0);
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,
struct files_struct *dirfsp,
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,
dirfsp,
smb_fname,
force_unlink);
break;
case FRUIT_RSRC_ADFILE:
rc = fruit_unlink_rsrc_adouble(handle,
dirfsp,
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_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_unlinkat(vfs_handle_struct *handle,
struct files_struct *dirfsp,
const struct smb_filename *smb_fname,
int flags)
{
struct fruit_config_data *config = NULL;
struct smb_filename *rsrc_smb_fname = NULL;
int ret;
SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
if (flags & AT_REMOVEDIR) {
return SMB_VFS_NEXT_UNLINKAT(handle,
dirfsp,
smb_fname,
AT_REMOVEDIR);
}
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data, return -1);
if (is_afpinfo_stream(smb_fname->stream_name)) {
return fruit_unlink_meta(handle,
dirfsp,
smb_fname);
} else if (is_afpresource_stream(smb_fname->stream_name)) {
return fruit_unlink_rsrc(handle,
dirfsp,
smb_fname,
false);
} else if (is_named_stream(smb_fname)) {
return SMB_VFS_NEXT_UNLINKAT(handle,
dirfsp,
smb_fname,
0);
} else if (is_adouble_file(smb_fname->base_name)) {
return SMB_VFS_NEXT_UNLINKAT(handle,
dirfsp,
smb_fname,
0);
}
/*
* 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->twrp,
smb_fname->flags);
if (rsrc_smb_fname == NULL) {
return -1;
}
ret = fruit_unlink_rsrc(handle, dirfsp, rsrc_smb_fname, true);
if ((ret != 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_UNLINKAT(handle,
dirfsp,
smb_fname,
0);
}
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 == -1 || nread == n) {
return nread;
}
DBG_ERR("Removing [%s] after short read [%zd]\n",
fsp_str_dbg(fsp), nread);
ret = SMB_VFS_NEXT_UNLINKAT(handle,
fsp->conn->cwd_fsp,
fsp->fsp_name,
0);
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;
}
if (fio == NULL) {
DBG_ERR("Failed to fetch fsp extension");
return -1;
}
/* 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;
}
if (nread == -1 && fio->created) {
AfpInfo *ai = NULL;
char afpinfo_buf[AFP_INFO_SIZE];
ai = afpinfo_new(talloc_tos());
if (ai == NULL) {
return -1;
}
nread = afpinfo_pack(ai, afpinfo_buf);
TALLOC_FREE(ai);
if (nread != AFP_INFO_SIZE) {
return -1;
}
memcpy(data, afpinfo_buf, to_return);
return to_return;
}
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;
if (fio == NULL) {
errno = EINVAL;
return -1;
}
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) {
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)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
AfpInfo *ai = NULL;
size_t nwritten;
int ret;
bool ok;
DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
fsp_str_dbg(fsp), (intmax_t)offset, n);
if (fio == NULL) {
return -1;
}
if (fio->fake_fd) {
int fd;
ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
if (ret != 0) {
DBG_ERR("Close [%s] failed: %s\n",
fsp_str_dbg(fsp), strerror(errno));
fsp->fh->fd = -1;
return -1;
}
fd = SMB_VFS_NEXT_OPEN(handle,
fsp->fsp_name,
fsp,
fio->flags,
fio->mode);
if (fd == -1) {
DBG_ERR("On-demand create [%s] in write failed: %s\n",
fsp_str_dbg(fsp), strerror(errno));
return -1;
}
fsp->fh->fd = fd;
fio->fake_fd = false;
}
ai = afpinfo_unpack(talloc_tos(), data);
if (ai == NULL) {
return -1;
}
if (ai_empty_finderinfo(ai)) {
/*
* 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.
*/
ret = SMB_VFS_NEXT_FTRUNCATE(handle, fsp, 0);
if (ret != 0) {
DBG_ERR("SMB_VFS_NEXT_FTRUNCATE on [%s] failed\n",
fsp_str_dbg(fsp));
return -1;
}
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;
}
nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
if (nwritten != n) {
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(), 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(handle, 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;
}
/*
* 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.
*/
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;
uint8_t buf[AFP_INFO_SIZE];
size_t to_write;
size_t to_copy;
int cmp;
if (fio == NULL) {
DBG_ERR("Failed to fetch fsp extension");
return -1;
}
if (n < 3) {
errno = EINVAL;
return -1;
}
if (offset != 0 && n < 60) {
errno = EINVAL;
return -1;
}
cmp = memcmp(data, "AFP", 3);
if (cmp != 0) {
errno = EINVAL;
return -1;
}
if (n <= AFP_OFF_FinderInfo) {
/*
* Nothing to do here really, just return
*/
return n;
}
offset = 0;
to_copy = n;
if (to_copy > AFP_INFO_SIZE) {
to_copy = AFP_INFO_SIZE;
}
memcpy(buf, data, to_copy);
to_write = n;
if (to_write != AFP_INFO_SIZE) {
to_write = AFP_INFO_SIZE;
}
switch (fio->config->meta) {
case FRUIT_META_STREAM:
nwritten = fruit_pwrite_meta_stream(handle,
fsp,
buf,
to_write,
offset);
break;
case FRUIT_META_NETATALK:
nwritten = fruit_pwrite_meta_netatalk(handle,
fsp,
buf,
to_write,
offset);
break;
default:
DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
return -1;
}
if (nwritten != to_write) {
return -1;
}
/*
* Return the requested amount, verified against macOS SMB server
*/
return n;
}
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(handle, 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;
if (fio == NULL) {
DBG_ERR("Failed to fetch fsp extension");
return -1;
}
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;
DBG_DEBUG("fruit_stat_base [%s] dev [%ju] ino [%ju]\n",
smb_fname->base_name,
(uintmax_t)smb_fname->st.st_ex_dev,
(uintmax_t)smb_fname->st.st_ex_ino);
return rc;
}
static int fruit_stat_meta_stream(vfs_handle_struct *handle,
struct smb_filename *smb_fname,
bool follow_links)
{
int ret;
ino_t ino;
ret = fruit_stat_base(handle, smb_fname, false);
if (ret != 0) {
return -1;
}
ino = hash_inode(&smb_fname->st, smb_fname->stream_name);
if (follow_links) {
ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
} else {
ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
smb_fname->st.st_ex_ino = ino;
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 = hash_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 = hash_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 = hash_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_named_stream(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->stream_name)) {
rc = fruit_stat_meta(handle, smb_fname, true);
} else if (is_afpresource_stream(smb_fname->stream_name)) {
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_named_stream(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->stream_name)) {
rc = fruit_stat_meta(handle, smb_fname, false);
} else if (is_afpresource_stream(smb_fname->stream_name)) {
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)
{
struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
struct smb_filename smb_fname;
ino_t ino;
int ret;
if (fio == NULL) {
return -1;
}
if (fio->fake_fd) {
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 = hash_inode(sbuf, fsp->fsp_name->stream_name);
return 0;
}
smb_fname = (struct smb_filename) {
.base_name = fsp->fsp_name->base_name,
.twrp = fsp->fsp_name->twrp,
};
ret = fruit_stat_base(handle, &smb_fname, false);
if (ret != 0) {
return -1;
}
*sbuf = smb_fname.st;
ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
if (ret != 0) {
return -1;
}
sbuf->st_ex_ino = ino;
return 0;
}
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 = hash_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 = hash_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,
off_t size)
{
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;
}
if (size == 0) {
return NT_STATUS_OK;
}
sname = synthetic_smb_fname(talloc_tos(),
smb_fname->base_name,
AFPINFO_STREAM_NAME,
NULL,
smb_fname->twrp,
0);
if (sname == NULL) {
return NT_STATUS_NO_MEMORY;
}
ret = SMB_VFS_NEXT_UNLINKAT(handle,
handle->conn->cwd_fsp,
sname,
0);
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;
int i;
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,
stream[i].size);
}
return NT_STATUS_OK;
}
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 void fruit_filter_empty_streams(unsigned int *pnum_streams,
struct stream_struct **pstreams)
{
unsigned num_streams = *pnum_streams;
struct stream_struct *streams = *pstreams;
unsigned i = 0;
if (!global_fruit_config.nego_aapl) {
return;
}
while (i < num_streams) {
struct smb_filename smb_fname = (struct smb_filename) {
.stream_name = streams[i].name,
};
if (is_ntfs_default_stream_smb_fname(&smb_fname)
|| streams[i].size > 0)
{
i++;
continue;
}
streams[i] = streams[num_streams - 1];
num_streams--;
}
*pnum_streams = num_streams;
}
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;
}
fruit_filter_empty_streams(pnum_streams, pstreams);
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) ||
is_omit_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(handle, 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)
{
#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(handle, 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)
{
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;
if (fio == NULL) {
DBG_ERR("Failed to fetch fsp extension");
return -1;
}
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,
struct files_struct **dirfsp,
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,
const 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;
struct fio *fio = NULL;
bool internal_open = (oplock_request & INTERNAL_OPEN_ONLY);
int ret;
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);
if (is_apple_stream(smb_fname->stream_name) && !internal_open) {
uint32_t conv_flags = 0;
if (config->wipe_intentionally_left_blank_rfork) {
conv_flags |= AD_CONV_WIPE_BLANK;
}
if (config->delete_empty_adfiles) {
conv_flags |= AD_CONV_DELETE;
}
ret = ad_convert(handle,
handle->conn->cwd_fsp,
smb_fname,
macos_string_replace_map,
conv_flags);
if (ret != 0) {
DBG_ERR("ad_convert() failed\n");
return NT_STATUS_UNSUCCESSFUL;
}
}
status = SMB_VFS_NEXT_CREATE_FILE(
handle, req, dirfsp, 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->fsp_flags.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 (global_fruit_config.nego_aapl &&
create_disposition == FILE_OPEN &&
smb_fname->st.st_ex_size == 0 &&
is_named_stream(smb_fname))
{
status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
goto fail;
}
fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
if (fio != NULL && pinfo != NULL && *pinfo == FILE_WAS_CREATED) {
fio->created = true;
}
if (is_named_stream(smb_fname) || fsp->fsp_flags.is_directory) {
return status;
}
if ((config->locking == FRUIT_LOCKING_NETATALK) &&
(fsp->op != NULL))
{
status = fruit_check_access(
handle, *result,
access_mask,
share_access);
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;
uint32_t conv_flags = 0;
NTSTATUS status;
int ret;
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));
if (config->wipe_intentionally_left_blank_rfork) {
conv_flags |= AD_CONV_WIPE_BLANK;
}
if (config->delete_empty_adfiles) {
conv_flags |= AD_CONV_DELETE;
}
ret = ad_convert(handle,
handle->conn->cwd_fsp,
fname,
macos_string_replace_map,
conv_flags);
if (ret != 0) {
DBG_ERR("ad_convert() failed\n");
return NT_STATUS_UNSUCCESSFUL;
}
*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,
handle->conn->cwd_fsp,
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) {
result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
if (result != 0) {
DBG_WARNING("%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->twrp,
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->twrp,
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,
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 */
&handle->conn->cwd_fsp, /* dirfsp */
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,
const char *bundle,
size_t *_nbands)
{
char *path = NULL;
struct smb_filename *bands_dir = NULL;
struct smb_Dir *dir_hnd = NULL;
const char *dname = NULL;
char *talloced = NULL;
long offset = 0;
size_t nbands;
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,
0);
TALLOC_FREE(path);
if (bands_dir == NULL) {
return false;
}
dir_hnd = OpenDir(talloc_tos(), handle->conn, bands_dir, NULL, 0);
if (dir_hnd == NULL) {
TALLOC_FREE(bands_dir);
return false;
}
nbands = 0;
while ((dname = ReadDirName(dir_hnd, &offset, NULL, &talloced))
!= NULL)
{
if (ISDOT(dname) || ISDOTDOT(dname)) {
continue;
}
nbands++;
}
TALLOC_FREE(dir_hnd);
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,
const char *name)
{
bool ok;
char *p = NULL;
size_t sparsebundle_strlen = strlen("sparsebundle");
size_t bandsize = 0;
size_t nbands;
off_t tm_size;
p = strstr(name, "sparsebundle");
if (p == NULL) {
return true;
}
if (p[sparsebundle_strlen] != '\0') {
return true;
}
DBG_DEBUG("Processing sparsebundle [%s]\n", name);
ok = fruit_get_bandsize(handle, 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", name);
return true;
}
ok = fruit_get_num_bands(handle, 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", name);
return true;
}
/*
* Arithmetic on 32-bit systems may cause overflow, depending on
* size_t precision. First we check its unlikely, then we
* force the precision into target off_t, then we check that
* the total did not overflow either.
*/
if (bandsize > SIZE_MAX/nbands) {
DBG_ERR("tmsize potential overflow: bandsize [%zu] nbands [%zu]\n",
bandsize, nbands);
return false;
}
tm_size = (off_t)bandsize * (off_t)nbands;
if (state->total_size + tm_size < state->total_size) {
DBG_ERR("tm total size 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",
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};
struct smb_Dir *dir_hnd = NULL;
const char *dname = NULL;
char *talloced = NULL;
long offset = 0;
uint64_t dfree;
uint64_t dsize;
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);
}
dir_hnd = OpenDir(talloc_tos(), handle->conn, smb_fname, NULL, 0);
if (dir_hnd == NULL) {
return UINT64_MAX;
}
while ((dname = ReadDirName(dir_hnd, &offset, NULL, &talloced))
!= NULL)
{
ok = fruit_tmsize_do_dirent(handle, &state, dname);
if (!ok) {
TALLOC_FREE(talloced);
TALLOC_FREE(dir_hnd);
return UINT64_MAX;
}
TALLOC_FREE(talloced);
}
TALLOC_FREE(dir_hnd);
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 uint64_t fruit_fs_file_id(struct vfs_handle_struct *handle,
const SMB_STRUCT_STAT *psbuf)
{
struct fruit_config_data *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct fruit_config_data,
return 0);
if (global_fruit_config.nego_aapl &&
config->aapl_zero_file_id)
{
return 0;
}
return SMB_VFS_NEXT_FS_FILE_ID(handle, psbuf);
}
static struct vfs_fn_pointers vfs_fruit_fns = {
.connect_fn = fruit_connect,
.disk_free_fn = fruit_disk_free,
/* File operations */
.chmod_fn = fruit_chmod,
.unlinkat_fn = fruit_unlinkat,
.renameat_fn = fruit_renameat,
.open_fn = fruit_open,
.close_fn = fruit_close,
.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,
.fs_file_id_fn = fruit_fs_file_id,
/* 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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