Copyright (C) Andrew Tridgell 1992-2000
Copyright (C) Jeremy Allison 1992-2006
Copyright (C) Volker Lendecke 2005
-
+
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 "system/filesys.h"
+#include "locking/proto.h"
+#include "smbd/globals.h"
+#include "dbwrap.h"
+#include "../libcli/security/security.h"
+#include "serverid.h"
+#include "messages.h"
+#include "util_tdb.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_LOCKING
****************************************************************************/
void init_strict_lock_struct(files_struct *fsp,
- uint32 smbpid,
+ uint64_t smblctx,
br_off start,
br_off size,
enum brl_type lock_type,
{
SMB_ASSERT(lock_type == READ_LOCK || lock_type == WRITE_LOCK);
- plock->context.smbpid = smbpid;
+ plock->context.smblctx = smblctx;
plock->context.tid = fsp->conn->cnum;
- plock->context.pid = procid_self();
+ plock->context.pid = sconn_server_id(fsp->conn->sconn);
plock->start = start;
plock->size = size;
plock->fnum = fsp->fnum;
if (strict_locking == Auto) {
if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type) && (plock->lock_type == READ_LOCK || plock->lock_type == WRITE_LOCK)) {
- DEBUG(10,("is_locked: optimisation - exclusive oplock on file %s\n", fsp->fsp_name ));
+ DEBUG(10,("is_locked: optimisation - exclusive oplock on file %s\n", fsp_str_dbg(fsp)));
ret = True;
} else if ((fsp->oplock_type == LEVEL_II_OPLOCK) &&
(plock->lock_type == READ_LOCK)) {
- DEBUG(10,("is_locked: optimisation - level II oplock on file %s\n", fsp->fsp_name ));
+ DEBUG(10,("is_locked: optimisation - level II oplock on file %s\n", fsp_str_dbg(fsp)));
ret = True;
} else {
- struct byte_range_lock *br_lck = brl_get_locks_readonly(talloc_tos(), fsp);
+ struct byte_range_lock *br_lck;
+
+ br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
return True;
}
ret = brl_locktest(br_lck,
- plock->context.smbpid,
+ plock->context.smblctx,
plock->context.pid,
plock->start,
plock->size,
plock->lock_type,
plock->lock_flav);
- TALLOC_FREE(br_lck);
}
} else {
- struct byte_range_lock *br_lck = brl_get_locks_readonly(talloc_tos(), fsp);
+ struct byte_range_lock *br_lck;
+
+ br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
return True;
}
ret = brl_locktest(br_lck,
- plock->context.smbpid,
+ plock->context.smblctx,
plock->context.pid,
plock->start,
plock->size,
plock->lock_type,
plock->lock_flav);
- TALLOC_FREE(br_lck);
}
DEBUG(10,("strict_lock_default: flavour = %s brl start=%.0f "
lock_flav_name(plock->lock_flav),
(double)plock->start, (double)plock->size,
ret ? "unlocked" : "locked",
- plock->fnum, fsp->fsp_name ));
+ plock->fnum, fsp_str_dbg(fsp)));
return ret;
}
****************************************************************************/
NTSTATUS query_lock(files_struct *fsp,
- uint32 *psmbpid,
+ uint64_t *psmblctx,
uint64_t *pcount,
uint64_t *poffset,
enum brl_type *plock_type,
enum brl_flavour lock_flav)
{
struct byte_range_lock *br_lck = NULL;
- NTSTATUS status = NT_STATUS_LOCK_NOT_GRANTED;
if (!fsp->can_lock) {
return fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
return NT_STATUS_OK;
}
- br_lck = brl_get_locks_readonly(talloc_tos(), fsp);
+ br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
- status = brl_lockquery(br_lck,
- psmbpid,
- procid_self(),
+ return brl_lockquery(br_lck,
+ psmblctx,
+ sconn_server_id(fsp->conn->sconn),
poffset,
pcount,
plock_type,
lock_flav);
-
- TALLOC_FREE(br_lck);
- return status;
}
static void increment_current_lock_count(files_struct *fsp,
struct byte_range_lock *do_lock(struct messaging_context *msg_ctx,
files_struct *fsp,
- uint32 lock_pid,
+ uint64_t smblctx,
uint64_t count,
uint64_t offset,
enum brl_type lock_type,
enum brl_flavour lock_flav,
bool blocking_lock,
NTSTATUS *perr,
- uint32 *plock_pid,
+ uint64_t *psmblctx,
struct blocking_lock_record *blr)
{
struct byte_range_lock *br_lck = NULL;
+ /* silently return ok on print files as we don't do locking there */
+ if (fsp->print_file) {
+ *perr = NT_STATUS_OK;
+ return NULL;
+ }
+
if (!fsp->can_lock) {
*perr = fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
return NULL;
"blocking_lock=%s requested for fnum %d file %s\n",
lock_flav_name(lock_flav), lock_type_name(lock_type),
(double)offset, (double)count, blocking_lock ? "true" :
- "false", fsp->fnum, fsp->fsp_name));
+ "false", fsp->fnum, fsp_str_dbg(fsp)));
br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
*perr = brl_lock(msg_ctx,
br_lck,
- lock_pid,
- procid_self(),
+ smblctx,
+ sconn_server_id(fsp->conn->sconn),
offset,
- count,
+ count,
lock_type,
lock_flav,
blocking_lock,
- plock_pid,
+ psmblctx,
blr);
DEBUG(10, ("do_lock: returning status=%s\n", nt_errstr(*perr)));
NTSTATUS do_unlock(struct messaging_context *msg_ctx,
files_struct *fsp,
- uint32 lock_pid,
+ uint64_t smblctx,
uint64_t count,
uint64_t offset,
enum brl_flavour lock_flav)
{
bool ok = False;
struct byte_range_lock *br_lck = NULL;
-
+
if (!fsp->can_lock) {
return fsp->is_directory ? NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
-
+
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_OK;
}
-
+
DEBUG(10,("do_unlock: unlock start=%.0f len=%.0f requested for fnum %d file %s\n",
- (double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
+ (double)offset, (double)count, fsp->fnum,
+ fsp_str_dbg(fsp)));
br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
ok = brl_unlock(msg_ctx,
br_lck,
- lock_pid,
- procid_self(),
+ smblctx,
+ sconn_server_id(fsp->conn->sconn),
offset,
count,
lock_flav);
-
+
TALLOC_FREE(br_lck);
if (!ok) {
****************************************************************************/
NTSTATUS do_lock_cancel(files_struct *fsp,
- uint32 lock_pid,
+ uint64 smblctx,
uint64_t count,
uint64_t offset,
enum brl_flavour lock_flav,
return fsp->is_directory ?
NT_STATUS_INVALID_DEVICE_REQUEST : NT_STATUS_INVALID_HANDLE;
}
-
+
if (!lp_locking(fsp->conn->params)) {
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
DEBUG(10,("do_lock_cancel: cancel start=%.0f len=%.0f requested for fnum %d file %s\n",
- (double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
+ (double)offset, (double)count, fsp->fnum,
+ fsp_str_dbg(fsp)));
br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
}
ok = brl_lock_cancel(br_lck,
- lock_pid,
- procid_self(),
+ smblctx,
+ sconn_server_id(fsp->conn->sconn),
offset,
count,
lock_flav,
****************************************************************************/
void locking_close_file(struct messaging_context *msg_ctx,
- files_struct *fsp)
+ files_struct *fsp,
+ enum file_close_type close_type)
{
struct byte_range_lock *br_lck;
br_lck = brl_get_locks(talloc_tos(),fsp);
if (br_lck) {
- cancel_pending_lock_requests_by_fid(fsp, br_lck);
+ cancel_pending_lock_requests_by_fid(fsp, br_lck, close_type);
brl_close_fnum(msg_ctx, br_lck);
TALLOC_FREE(br_lck);
}
lock_db = db_open(NULL, lock_path("locking.tdb"),
lp_open_files_db_hash_size(),
- TDB_DEFAULT|TDB_VOLATILE|TDB_CLEAR_IF_FIRST,
+ TDB_DEFAULT|TDB_VOLATILE|TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH,
read_only?O_RDONLY:O_RDWR|O_CREAT, 0644);
if (!lock_db) {
{
return talloc_asprintf(ctx, "share_mode_entry[%d]: %s "
"pid = %s, share_access = 0x%x, private_options = 0x%x, "
- "access_mask = 0x%x, mid = 0x%x, type= 0x%x, gen_id = %lu, "
- "uid = %u, flags = %u, file_id %s",
+ "access_mask = 0x%x, mid = 0x%llx, type= 0x%x, gen_id = %lu, "
+ "uid = %u, flags = %u, file_id %s, name_hash = 0x%x",
num,
e->op_type == UNUSED_SHARE_MODE_ENTRY ? "UNUSED" : "",
procid_str_static(&e->pid),
e->share_access, e->private_options,
- e->access_mask, e->op_mid, e->op_type, e->share_file_id,
+ e->access_mask, (unsigned long long)e->op_mid,
+ e->op_type, e->share_file_id,
(unsigned int)e->uid, (unsigned int)e->flags,
- file_id_string_tos(&e->id));
+ file_id_string_tos(&e->id),
+ (unsigned int)e->name_hash);
}
/*******************************************************************
}
}
+static int parse_delete_tokens_list(struct share_mode_lock *lck,
+ struct locking_data *pdata,
+ const TDB_DATA dbuf)
+{
+ uint8_t *p = dbuf.dptr + sizeof(struct locking_data) +
+ (lck->num_share_modes *
+ sizeof(struct share_mode_entry));
+ uint8_t *end_ptr = dbuf.dptr + (dbuf.dsize - 2);
+ int delete_tokens_size = 0;
+ int i;
+
+ lck->delete_tokens = NULL;
+
+ for (i = 0; i < pdata->u.s.num_delete_token_entries; i++) {
+ uint32_t token_len;
+ struct delete_token_list *pdtl;
+
+ if (end_ptr - p < (sizeof(uint32_t) + sizeof(uint32_t) +
+ sizeof(uid_t) + sizeof(gid_t))) {
+ DEBUG(0,("parse_delete_tokens_list: "
+ "corrupt token list (%u)",
+ (unsigned int)(end_ptr - p)));
+ smb_panic("corrupt token list");
+ return -1;
+ }
+
+ memcpy(&token_len, p, sizeof(token_len));
+ delete_tokens_size += token_len;
+
+ if (p + token_len > end_ptr || token_len < sizeof(token_len) +
+ sizeof(pdtl->name_hash) +
+ sizeof(uid_t) +
+ sizeof(gid_t)) {
+ DEBUG(0,("parse_delete_tokens_list: "
+ "invalid token length (%u)\n",
+ (unsigned int)token_len ));
+ smb_panic("invalid token length");
+ return -1;
+ }
+
+ p += sizeof(token_len);
+
+ pdtl = TALLOC_ZERO_P(lck, struct delete_token_list);
+ if (pdtl == NULL) {
+ DEBUG(0,("parse_delete_tokens_list: talloc failed"));
+ return -1;
+ }
+ /* Copy out the name_hash. */
+ memcpy(&pdtl->name_hash, p, sizeof(pdtl->name_hash));
+ p += sizeof(pdtl->name_hash);
+
+ pdtl->delete_token = TALLOC_ZERO_P(pdtl, struct security_unix_token);
+ if (pdtl->delete_token == NULL) {
+ DEBUG(0,("parse_delete_tokens_list: talloc failed"));
+ return -1;
+ }
+
+ /* Copy out the uid and gid. */
+ memcpy(&pdtl->delete_token->uid, p, sizeof(uid_t));
+ p += sizeof(uid_t);
+ memcpy(&pdtl->delete_token->gid, p, sizeof(gid_t));
+ p += sizeof(gid_t);
+
+ token_len -= (sizeof(token_len) + sizeof(pdtl->name_hash) +
+ sizeof(uid_t) + sizeof(gid_t));
+
+ /* Any supplementary groups ? */
+ if (token_len) {
+ int j;
+
+ if (token_len % sizeof(gid_t) != 0) {
+ DEBUG(0,("parse_delete_tokens_list: "
+ "corrupt group list (%u)",
+ (unsigned int)(token_len % sizeof(gid_t)) ));
+ smb_panic("corrupt group list");
+ return -1;
+ }
+
+ pdtl->delete_token->ngroups = token_len / sizeof(gid_t);
+ pdtl->delete_token->groups = talloc_array(pdtl->delete_token, gid_t,
+ pdtl->delete_token->ngroups);
+ if (pdtl->delete_token->groups == NULL) {
+ DEBUG(0,("parse_delete_tokens_list: talloc failed"));
+ return -1;
+ }
+
+ for (j = 0; j < pdtl->delete_token->ngroups; j++) {
+ memcpy(&pdtl->delete_token->groups[j], p, sizeof(gid_t));
+ p += sizeof(gid_t);
+ }
+ }
+ /* Add to the list. */
+ DLIST_ADD(lck->delete_tokens, pdtl);
+ }
+
+ return delete_tokens_size;
+}
+
/*******************************************************************
Get all share mode entries for a dev/inode pair.
********************************************************************/
-static bool parse_share_modes(TDB_DATA dbuf, struct share_mode_lock *lck)
+static bool parse_share_modes(const TDB_DATA dbuf, struct share_mode_lock *lck)
{
struct locking_data data;
+ int delete_tokens_size;
int i;
if (dbuf.dsize < sizeof(struct locking_data)) {
memcpy(&data, dbuf.dptr, sizeof(data));
- lck->delete_on_close = data.u.s.delete_on_close;
lck->old_write_time = data.u.s.old_write_time;
lck->changed_write_time = data.u.s.changed_write_time;
lck->num_share_modes = data.u.s.num_share_mode_entries;
- DEBUG(10, ("parse_share_modes: delete_on_close: %d, owrt: %s, "
- "cwrt: %s, tok: %u, num_share_modes: %d\n",
- lck->delete_on_close,
- timestring(debug_ctx(),
+ DEBUG(10, ("parse_share_modes: owrt: %s, "
+ "cwrt: %s, ntok: %u, num_share_modes: %d\n",
+ timestring(talloc_tos(),
convert_timespec_to_time_t(lck->old_write_time)),
- timestring(debug_ctx(),
+ timestring(talloc_tos(),
convert_timespec_to_time_t(
lck->changed_write_time)),
- (unsigned int)data.u.s.delete_token_size,
+ (unsigned int)data.u.s.num_delete_token_entries,
lck->num_share_modes));
if ((lck->num_share_modes < 0) || (lck->num_share_modes > 1000000)) {
}
lck->share_modes = NULL;
-
+
if (lck->num_share_modes != 0) {
if (dbuf.dsize < (sizeof(struct locking_data) +
sizeof(struct share_mode_entry)))) {
smb_panic("parse_share_modes: buffer too short");
}
-
+
lck->share_modes = (struct share_mode_entry *)
TALLOC_MEMDUP(lck,
dbuf.dptr+sizeof(struct locking_data),
}
}
- /* Get any delete token. */
- if (data.u.s.delete_token_size) {
- uint8 *p = dbuf.dptr + sizeof(struct locking_data) +
- (lck->num_share_modes *
- sizeof(struct share_mode_entry));
-
- if ((data.u.s.delete_token_size < sizeof(uid_t) + sizeof(gid_t)) ||
- ((data.u.s.delete_token_size - sizeof(uid_t)) % sizeof(gid_t)) != 0) {
- DEBUG(0, ("parse_share_modes: invalid token size %d\n",
- data.u.s.delete_token_size));
- smb_panic("parse_share_modes: invalid token size");
- }
-
- lck->delete_token = TALLOC_P(lck, UNIX_USER_TOKEN);
- if (!lck->delete_token) {
- smb_panic("parse_share_modes: talloc failed");
- }
-
- /* Copy out the uid and gid. */
- memcpy(&lck->delete_token->uid, p, sizeof(uid_t));
- p += sizeof(uid_t);
- memcpy(&lck->delete_token->gid, p, sizeof(gid_t));
- p += sizeof(gid_t);
-
- /* Any supplementary groups ? */
- lck->delete_token->ngroups = (data.u.s.delete_token_size > (sizeof(uid_t) + sizeof(gid_t))) ?
- ((data.u.s.delete_token_size -
- (sizeof(uid_t) + sizeof(gid_t)))/sizeof(gid_t)) : 0;
-
- if (lck->delete_token->ngroups) {
- /* Make this a talloc child of lck->delete_token. */
- lck->delete_token->groups = TALLOC_ARRAY(lck->delete_token, gid_t,
- lck->delete_token->ngroups);
- if (!lck->delete_token) {
- smb_panic("parse_share_modes: talloc failed");
- }
-
- for (i = 0; i < lck->delete_token->ngroups; i++) {
- memcpy(&lck->delete_token->groups[i], p, sizeof(gid_t));
- p += sizeof(gid_t);
- }
- }
-
- } else {
- lck->delete_token = NULL;
+ /* Get any delete tokens. */
+ delete_tokens_size = parse_delete_tokens_list(lck, &data, dbuf);
+ if (delete_tokens_size < 0) {
+ smb_panic("parse_share_modes: parse_delete_tokens_list failed");
}
/* Save off the associated service path and filename. */
lck->servicepath = (const char *)dbuf.dptr + sizeof(struct locking_data) +
(lck->num_share_modes * sizeof(struct share_mode_entry)) +
- data.u.s.delete_token_size;
+ delete_tokens_size;
- lck->filename = (const char *)dbuf.dptr + sizeof(struct locking_data) +
+ lck->base_name = (const char *)dbuf.dptr + sizeof(struct locking_data) +
(lck->num_share_modes * sizeof(struct share_mode_entry)) +
- data.u.s.delete_token_size +
+ delete_tokens_size +
strlen(lck->servicepath) + 1;
+ lck->stream_name = (const char *)dbuf.dptr + sizeof(struct locking_data) +
+ (lck->num_share_modes * sizeof(struct share_mode_entry)) +
+ delete_tokens_size +
+ strlen(lck->servicepath) + 1 +
+ strlen(lck->base_name) + 1;
+
/*
* Ensure that each entry has a real process attached.
*/
}
DEBUG(10,("parse_share_modes: %s\n",
str ? str : ""));
- if (!process_exists(entry_p->pid)) {
+ if (!serverid_exists(&entry_p->pid)) {
DEBUG(10,("parse_share_modes: deleted %s\n",
str ? str : ""));
entry_p->op_type = UNUSED_SHARE_MODE_ENTRY;
return True;
}
-static TDB_DATA unparse_share_modes(struct share_mode_lock *lck)
+static TDB_DATA unparse_share_modes(const struct share_mode_lock *lck)
{
TDB_DATA result;
int num_valid = 0;
int i;
struct locking_data *data;
ssize_t offset;
- ssize_t sp_len;
- uint32 delete_token_size;
+ ssize_t sp_len, bn_len, sn_len;
+ uint32_t delete_tokens_size = 0;
+ struct delete_token_list *pdtl = NULL;
+ uint32_t num_delete_token_entries = 0;
result.dptr = NULL;
result.dsize = 0;
}
sp_len = strlen(lck->servicepath);
- delete_token_size = (lck->delete_token ?
- (sizeof(uid_t) + sizeof(gid_t) + (lck->delete_token->ngroups*sizeof(gid_t))) : 0);
+ bn_len = strlen(lck->base_name);
+ sn_len = lck->stream_name != NULL ? strlen(lck->stream_name) : 0;
+
+ for (pdtl = lck->delete_tokens; pdtl; pdtl = pdtl->next) {
+ num_delete_token_entries++;
+ delete_tokens_size += (sizeof(uint32_t) +
+ sizeof(uint32_t) +
+ sizeof(uid_t) +
+ sizeof(gid_t) +
+ pdtl->delete_token->ngroups*sizeof(gid_t));
+ }
result.dsize = sizeof(*data) +
lck->num_share_modes * sizeof(struct share_mode_entry) +
- delete_token_size +
+ delete_tokens_size +
sp_len + 1 +
- strlen(lck->filename) + 1;
- result.dptr = TALLOC_ARRAY(lck, uint8, result.dsize);
+ bn_len + 1 +
+ sn_len + 1;
+ result.dptr = talloc_array(lck, uint8, result.dsize);
if (result.dptr == NULL) {
smb_panic("talloc failed");
data = (struct locking_data *)result.dptr;
ZERO_STRUCTP(data);
data->u.s.num_share_mode_entries = lck->num_share_modes;
- data->u.s.delete_on_close = lck->delete_on_close;
data->u.s.old_write_time = lck->old_write_time;
data->u.s.changed_write_time = lck->changed_write_time;
- data->u.s.delete_token_size = delete_token_size;
+ data->u.s.num_delete_token_entries = num_delete_token_entries;
- DEBUG(10,("unparse_share_modes: del: %d, owrt: %s cwrt: %s, tok: %u, "
- "num: %d\n", data->u.s.delete_on_close,
- timestring(debug_ctx(),
+ DEBUG(10,("unparse_share_modes: owrt: %s cwrt: %s, ntok: %u, "
+ "num: %d\n",
+ timestring(talloc_tos(),
convert_timespec_to_time_t(lck->old_write_time)),
- timestring(debug_ctx(),
+ timestring(talloc_tos(),
convert_timespec_to_time_t(
lck->changed_write_time)),
- (unsigned int)data->u.s.delete_token_size,
+ (unsigned int)data->u.s.num_delete_token_entries,
data->u.s.num_share_mode_entries));
memcpy(result.dptr + sizeof(*data), lck->share_modes,
offset = sizeof(*data) +
sizeof(struct share_mode_entry)*lck->num_share_modes;
- /* Store any delete on close token. */
- if (lck->delete_token) {
- uint8 *p = result.dptr + offset;
+ /* Store any delete on close tokens. */
+ for (pdtl = lck->delete_tokens; pdtl; pdtl = pdtl->next) {
+ struct security_unix_token *pdt = pdtl->delete_token;
+ uint32_t token_size = sizeof(uint32_t) +
+ sizeof(uint32_t) +
+ sizeof(uid_t) +
+ sizeof(gid_t) +
+ (pdt->ngroups * sizeof(gid_t));
+ uint8_t *p = result.dptr + offset;
+
+ memcpy(p, &token_size, sizeof(uint32_t));
+ p += sizeof(uint32_t);
- memcpy(p, &lck->delete_token->uid, sizeof(uid_t));
+ memcpy(p, &pdtl->name_hash, sizeof(uint32_t));
+ p += sizeof(uint32_t);
+
+ memcpy(p, &pdt->uid, sizeof(uid_t));
p += sizeof(uid_t);
- memcpy(p, &lck->delete_token->gid, sizeof(gid_t));
+ memcpy(p, &pdt->gid, sizeof(gid_t));
p += sizeof(gid_t);
- for (i = 0; i < lck->delete_token->ngroups; i++) {
- memcpy(p, &lck->delete_token->groups[i], sizeof(gid_t));
+ for (i = 0; i < pdt->ngroups; i++) {
+ memcpy(p, &pdt->groups[i], sizeof(gid_t));
p += sizeof(gid_t);
}
- offset = p - result.dptr;
+ offset += token_size;
}
- safe_strcpy((char *)result.dptr + offset, lck->servicepath,
- result.dsize - offset - 1);
+ strlcpy((char *)result.dptr + offset,
+ lck->servicepath ? lck->servicepath : "",
+ result.dsize - offset);
offset += sp_len + 1;
- safe_strcpy((char *)result.dptr + offset, lck->filename,
- result.dsize - offset - 1);
+ strlcpy((char *)result.dptr + offset,
+ lck->base_name ? lck->base_name : "",
+ result.dsize - offset);
+ offset += bn_len + 1;
+ strlcpy((char *)result.dptr + offset,
+ lck->stream_name ? lck->stream_name : "",
+ result.dsize - offset);
if (DEBUGLEVEL >= 10) {
print_share_mode_table(data);
status = lck->record->delete_rec(lck->record);
if (!NT_STATUS_IS_OK(status)) {
+ char *errmsg;
+
DEBUG(0, ("delete_rec returned %s\n",
nt_errstr(status)));
- smb_panic("could not delete share entry");
+
+ if (asprintf(&errmsg, "could not delete share "
+ "entry: %s\n",
+ nt_errstr(status)) == -1) {
+ smb_panic("could not delete share"
+ "entry");
+ }
+ smb_panic(errmsg);
}
}
goto done;
status = lck->record->store(lck->record, data, TDB_REPLACE);
if (!NT_STATUS_IS_OK(status)) {
+ char *errmsg;
+
DEBUG(0, ("store returned %s\n", nt_errstr(status)));
- smb_panic("could not store share mode entry");
+
+ if (asprintf(&errmsg, "could not store share mode entry: %s",
+ nt_errstr(status)) == -1) {
+ smb_panic("could not store share mode entry");
+ }
+ smb_panic(errmsg);
}
done:
static bool fill_share_mode_lock(struct share_mode_lock *lck,
struct file_id id,
const char *servicepath,
- const char *fname,
+ const struct smb_filename *smb_fname,
TDB_DATA share_mode_data,
const struct timespec *old_write_time)
{
valid even if parse_share_modes fails. */
lck->servicepath = NULL;
- lck->filename = NULL;
+ lck->base_name = NULL;
+ lck->stream_name = NULL;
lck->id = id;
lck->num_share_modes = 0;
lck->share_modes = NULL;
- lck->delete_token = NULL;
- lck->delete_on_close = False;
+ lck->delete_tokens = NULL;
ZERO_STRUCT(lck->old_write_time);
ZERO_STRUCT(lck->changed_write_time);
lck->fresh = False;
lck->fresh = (share_mode_data.dptr == NULL);
if (lck->fresh) {
- if (fname == NULL || servicepath == NULL
+ bool has_stream;
+ if (smb_fname == NULL || servicepath == NULL
|| old_write_time == NULL) {
return False;
}
- lck->filename = talloc_strdup(lck, fname);
+
+ has_stream = smb_fname->stream_name != NULL;
+
+ lck->base_name = talloc_strdup(lck, smb_fname->base_name);
+ lck->stream_name = talloc_strdup(lck, smb_fname->stream_name);
lck->servicepath = talloc_strdup(lck, servicepath);
- if (lck->filename == NULL || lck->servicepath == NULL) {
+ if (lck->base_name == NULL ||
+ (has_stream && lck->stream_name == NULL) ||
+ lck->servicepath == NULL) {
DEBUG(0, ("talloc failed\n"));
return False;
}
struct share_mode_lock *get_share_mode_lock(TALLOC_CTX *mem_ctx,
const struct file_id id,
const char *servicepath,
- const char *fname,
+ const struct smb_filename *smb_fname,
const struct timespec *old_write_time)
{
struct share_mode_lock *lck;
return NULL;
}
- if (!fill_share_mode_lock(lck, id, servicepath, fname,
+ if (!fill_share_mode_lock(lck, id, servicepath, smb_fname,
lck->record->value, old_write_time)) {
DEBUG(3, ("fill_share_mode_lock failed\n"));
TALLOC_FREE(lck);
}
struct share_mode_lock *fetch_share_mode_unlocked(TALLOC_CTX *mem_ctx,
- const struct file_id id,
- const char *servicepath,
- const char *fname)
+ const struct file_id id)
{
struct share_mode_lock *lck;
struct file_id tmp;
return NULL;
}
- if (!fill_share_mode_lock(lck, id, servicepath, fname, data, NULL)) {
- DEBUG(3, ("fill_share_mode_lock failed\n"));
+ if (!fill_share_mode_lock(lck, id, NULL, NULL, data, NULL)) {
+ DEBUG(10, ("fetch_share_mode_unlocked: no share_mode record "
+ "around (file not open)\n"));
TALLOC_FREE(lck);
return NULL;
}
bool rename_share_filename(struct messaging_context *msg_ctx,
struct share_mode_lock *lck,
const char *servicepath,
- const char *newname)
+ uint32_t orig_name_hash,
+ uint32_t new_name_hash,
+ const struct smb_filename *smb_fname_dst)
{
size_t sp_len;
- size_t fn_len;
+ size_t bn_len;
+ size_t sn_len;
size_t msg_len;
char *frm = NULL;
int i;
+ bool strip_two_chars = false;
+ bool has_stream = smb_fname_dst->stream_name != NULL;
DEBUG(10, ("rename_share_filename: servicepath %s newname %s\n",
- servicepath, newname));
+ servicepath, smb_fname_dst->base_name));
/*
* rename_internal_fsp() and rename_internals() add './' to
* head of newname if newname does not contain a '/'.
*/
- while (newname[0] && newname[1] && newname[0] == '.' && newname[1] == '/') {
- newname += 2;
+ if (smb_fname_dst->base_name[0] &&
+ smb_fname_dst->base_name[1] &&
+ smb_fname_dst->base_name[0] == '.' &&
+ smb_fname_dst->base_name[1] == '/') {
+ strip_two_chars = true;
}
lck->servicepath = talloc_strdup(lck, servicepath);
- lck->filename = talloc_strdup(lck, newname);
- if (lck->filename == NULL || lck->servicepath == NULL) {
+ lck->base_name = talloc_strdup(lck, smb_fname_dst->base_name +
+ (strip_two_chars ? 2 : 0));
+ lck->stream_name = talloc_strdup(lck, smb_fname_dst->stream_name);
+ if (lck->base_name == NULL ||
+ (has_stream && lck->stream_name == NULL) ||
+ lck->servicepath == NULL) {
DEBUG(0, ("rename_share_filename: talloc failed\n"));
return False;
}
lck->modified = True;
sp_len = strlen(lck->servicepath);
- fn_len = strlen(lck->filename);
+ bn_len = strlen(lck->base_name);
+ sn_len = has_stream ? strlen(lck->stream_name) : 0;
- msg_len = MSG_FILE_RENAMED_MIN_SIZE + sp_len + 1 + fn_len + 1;
+ msg_len = MSG_FILE_RENAMED_MIN_SIZE + sp_len + 1 + bn_len + 1 +
+ sn_len + 1;
/* Set up the name changed message. */
- frm = TALLOC_ARRAY(lck, char, msg_len);
+ frm = talloc_array(lck, char, msg_len);
if (!frm) {
return False;
}
DEBUG(10,("rename_share_filename: msg_len = %u\n", (unsigned int)msg_len ));
- safe_strcpy(&frm[24], lck->servicepath, sp_len);
- safe_strcpy(&frm[24 + sp_len + 1], lck->filename, fn_len);
+ strlcpy(&frm[24],
+ lck->servicepath ? lck->servicepath : "",
+ sp_len+1);
+ strlcpy(&frm[24 + sp_len + 1],
+ lck->base_name ? lck->base_name : "",
+ bn_len+1);
+ strlcpy(&frm[24 + sp_len + 1 + bn_len + 1],
+ lck->stream_name ? lck->stream_name : "",
+ sn_len+1);
/* Send the messages. */
for (i=0; i<lck->num_share_modes; i++) {
if (!is_valid_share_mode_entry(se)) {
continue;
}
+
+ /* If this is a hardlink to the inode
+ with a different name, skip this. */
+ if (se->name_hash != orig_name_hash) {
+ continue;
+ }
+
+ se->name_hash = new_name_hash;
+
/* But not to ourselves... */
if (procid_is_me(&se->pid)) {
continue;
}
- DEBUG(10,("rename_share_filename: sending rename message to pid %s "
- "file_id %s sharepath %s newname %s\n",
+ DEBUG(10,("rename_share_filename: sending rename message to "
+ "pid %s file_id %s sharepath %s base_name %s "
+ "stream_name %s\n",
procid_str_static(&se->pid),
file_id_string_tos(&lck->id),
- lck->servicepath, lck->filename ));
+ lck->servicepath, lck->base_name,
+ has_stream ? lck->stream_name : ""));
messaging_send_buf(msg_ctx, se->pid, MSG_SMB_FILE_RENAME,
(uint8 *)frm, msg_len);
}
void get_file_infos(struct file_id id,
+ uint32_t name_hash,
bool *delete_on_close,
struct timespec *write_time)
{
ZERO_STRUCTP(write_time);
}
- if (!(lck = fetch_share_mode_unlocked(talloc_tos(), id, NULL, NULL))) {
+ if (!(lck = fetch_share_mode_unlocked(talloc_tos(), id))) {
return;
}
if (delete_on_close) {
- *delete_on_close = lck->delete_on_close;
+ *delete_on_close = is_delete_on_close_set(lck, name_hash);
}
if (write_time) {
static void fill_share_mode_entry(struct share_mode_entry *e,
files_struct *fsp,
- uid_t uid, uint16 mid, uint16 op_type)
+ uid_t uid, uint64_t mid, uint16 op_type)
{
ZERO_STRUCTP(e);
- e->pid = procid_self();
+ e->pid = sconn_server_id(fsp->conn->sconn);
e->share_access = fsp->share_access;
e->private_options = fsp->fh->private_options;
e->access_mask = fsp->access_mask;
e->share_file_id = fsp->fh->gen_id;
e->uid = (uint32)uid;
e->flags = fsp->posix_open ? SHARE_MODE_FLAG_POSIX_OPEN : 0;
+ e->name_hash = fsp->name_hash;
}
static void fill_deferred_open_entry(struct share_mode_entry *e,
const struct timeval request_time,
- struct file_id id, uint16 mid)
+ struct file_id id,
+ struct server_id pid,
+ uint64_t mid)
{
ZERO_STRUCTP(e);
- e->pid = procid_self();
+ e->pid = pid;
e->op_mid = mid;
e->op_type = DEFERRED_OPEN_ENTRY;
e->time.tv_sec = request_time.tv_sec;
}
void set_share_mode(struct share_mode_lock *lck, files_struct *fsp,
- uid_t uid, uint16 mid, uint16 op_type)
+ uid_t uid, uint64_t mid, uint16 op_type)
{
struct share_mode_entry entry;
fill_share_mode_entry(&entry, fsp, uid, mid, op_type);
add_share_mode_entry(lck, &entry);
}
-void add_deferred_open(struct share_mode_lock *lck, uint16 mid,
+void add_deferred_open(struct share_mode_lock *lck, uint64_t mid,
struct timeval request_time,
- struct file_id id)
+ struct server_id pid, struct file_id id)
{
struct share_mode_entry entry;
- fill_deferred_open_entry(&entry, request_time, id, mid);
+ fill_deferred_open_entry(&entry, request_time, id, pid, mid);
add_share_mode_entry(lck, &entry);
}
return True;
}
-void del_deferred_open_entry(struct share_mode_lock *lck, uint16 mid)
+void del_deferred_open_entry(struct share_mode_lock *lck, uint64_t mid,
+ struct server_id pid)
{
struct share_mode_entry entry, *e;
fill_deferred_open_entry(&entry, timeval_zero(),
- lck->id, mid);
+ lck->id, pid, mid);
e = find_share_mode_entry(lck, &entry);
if (e == NULL) {
return False;
}
- e->op_mid = 0;
- if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
+ if (EXCLUSIVE_OPLOCK_TYPE(e->op_type)) {
/*
* Going from exclusive or batch,
* we always go through FAKE_LEVEL_II
* first.
*/
+ if (!EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
+ smb_panic("remove_share_oplock: logic error");
+ }
e->op_type = FAKE_LEVEL_II_OPLOCK;
} else {
e->op_type = NO_OPLOCK;
}
/****************************************************************************
- Deal with the internal needs of setting the delete on close flag. Note that
- as the tdb locking is recursive, it is safe to call this from within
- open_file_ntcreate. JRA.
+ Check if setting delete on close is allowed on this fsp.
****************************************************************************/
-NTSTATUS can_set_delete_on_close(files_struct *fsp, bool delete_on_close,
- uint32 dosmode)
+NTSTATUS can_set_delete_on_close(files_struct *fsp, uint32 dosmode)
{
- if (!delete_on_close) {
- return NT_STATUS_OK;
- }
-
/*
* Only allow delete on close for writable files.
*/
- if ((dosmode & aRONLY) &&
+ if ((dosmode & FILE_ATTRIBUTE_READONLY) &&
!lp_delete_readonly(SNUM(fsp->conn))) {
DEBUG(10,("can_set_delete_on_close: file %s delete on close "
"flag set but file attribute is readonly.\n",
- fsp->fsp_name ));
+ fsp_str_dbg(fsp)));
return NT_STATUS_CANNOT_DELETE;
}
if (!CAN_WRITE(fsp->conn)) {
DEBUG(10,("can_set_delete_on_close: file %s delete on "
"close flag set but write access denied on share.\n",
- fsp->fsp_name ));
+ fsp_str_dbg(fsp)));
return NT_STATUS_ACCESS_DENIED;
}
if (!(fsp->access_mask & DELETE_ACCESS)) {
DEBUG(10,("can_set_delete_on_close: file %s delete on "
"close flag set but delete access denied.\n",
- fsp->fsp_name ));
+ fsp_str_dbg(fsp)));
return NT_STATUS_ACCESS_DENIED;
}
/* Don't allow delete on close for non-empty directories. */
if (fsp->is_directory) {
- return can_delete_directory(fsp->conn, fsp->fsp_name);
+ SMB_ASSERT(!is_ntfs_stream_smb_fname(fsp->fsp_name));
+ return can_delete_directory(fsp->conn,
+ fsp->fsp_name->base_name);
}
return NT_STATUS_OK;
}
/*************************************************************************
- Return a talloced copy of a UNIX_USER_TOKEN. NULL on fail.
+ Return a talloced copy of a struct security_unix_token. NULL on fail.
(Should this be in locking.c.... ?).
*************************************************************************/
-static UNIX_USER_TOKEN *copy_unix_token(TALLOC_CTX *ctx, const UNIX_USER_TOKEN *tok)
+static struct security_unix_token *copy_unix_token(TALLOC_CTX *ctx, const struct security_unix_token *tok)
{
- UNIX_USER_TOKEN *cpy;
+ struct security_unix_token *cpy;
- if (tok == NULL) {
- return NULL;
- }
-
- cpy = TALLOC_P(ctx, UNIX_USER_TOKEN);
+ cpy = TALLOC_P(ctx, struct security_unix_token);
if (!cpy) {
return NULL;
}
cpy->ngroups = tok->ngroups;
if (tok->ngroups) {
/* Make this a talloc child of cpy. */
- cpy->groups = TALLOC_ARRAY(cpy, gid_t, tok->ngroups);
+ cpy->groups = (gid_t *)talloc_memdup(
+ cpy, tok->groups, tok->ngroups * sizeof(gid_t));
if (!cpy->groups) {
+ TALLOC_FREE(cpy);
return NULL;
}
- memcpy(cpy->groups, tok->groups, tok->ngroups * sizeof(gid_t));
}
return cpy;
}
/****************************************************************************
- Replace the delete on close token.
+ Adds a delete on close token.
****************************************************************************/
-void set_delete_on_close_token(struct share_mode_lock *lck, const UNIX_USER_TOKEN *tok)
+static bool add_delete_on_close_token(struct share_mode_lock *lck,
+ uint32_t name_hash,
+ const struct security_unix_token *tok)
{
- TALLOC_FREE(lck->delete_token); /* Also deletes groups... */
+ struct delete_token_list *dtl;
- /* Copy the new token (can be NULL). */
- lck->delete_token = copy_unix_token(lck, tok);
- lck->modified = True;
+ dtl = TALLOC_ZERO_P(lck, struct delete_token_list);
+ if (dtl == NULL) {
+ return false;
+ }
+
+ dtl->name_hash = name_hash;
+ dtl->delete_token = copy_unix_token(lck, tok);
+ if (dtl->delete_token == NULL) {
+ TALLOC_FREE(dtl);
+ return false;
+ }
+ DLIST_ADD(lck->delete_tokens, dtl);
+ lck->modified = true;
+ return true;
}
/****************************************************************************
changed the delete on close flag. This will be noticed
in the close code, the last closer will delete the file
if flag is set.
- This makes a copy of any UNIX_USER_TOKEN into the
+ This makes a copy of any struct security_unix_token into the
lck entry. This function is used when the lock is already granted.
****************************************************************************/
-void set_delete_on_close_lck(struct share_mode_lock *lck, bool delete_on_close, const UNIX_USER_TOKEN *tok)
+void set_delete_on_close_lck(files_struct *fsp,
+ struct share_mode_lock *lck,
+ bool delete_on_close,
+ const struct security_unix_token *tok)
{
- if (lck->delete_on_close != delete_on_close) {
- set_delete_on_close_token(lck, tok);
- lck->delete_on_close = delete_on_close;
- if (delete_on_close) {
- SMB_ASSERT(lck->delete_token != NULL);
+ struct delete_token_list *dtl;
+ bool ret;
+
+ if (delete_on_close) {
+ SMB_ASSERT(tok != NULL);
+ } else {
+ SMB_ASSERT(tok == NULL);
+ }
+
+ for (dtl = lck->delete_tokens; dtl; dtl = dtl->next) {
+ if (dtl->name_hash == fsp->name_hash) {
+ lck->modified = true;
+ if (delete_on_close == false) {
+ /* Delete this entry. */
+ DLIST_REMOVE(lck->delete_tokens, dtl);
+ TALLOC_FREE(dtl);
+ return;
+ }
+ /* Replace this token with the
+ given tok. */
+ TALLOC_FREE(dtl->delete_token);
+ dtl->delete_token = copy_unix_token(dtl, tok);
+ SMB_ASSERT(dtl->delete_token != NULL);
}
- lck->modified = True;
}
+
+ if (!delete_on_close) {
+ /* Nothing to delete - not found. */
+ return;
+ }
+
+ ret = add_delete_on_close_token(lck, fsp->name_hash, tok);
+ SMB_ASSERT(ret);
}
-bool set_delete_on_close(files_struct *fsp, bool delete_on_close, const UNIX_USER_TOKEN *tok)
+bool set_delete_on_close(files_struct *fsp, bool delete_on_close, const struct security_unix_token *tok)
{
- UNIX_USER_TOKEN *tok_copy = NULL;
struct share_mode_lock *lck;
-
+
DEBUG(10,("set_delete_on_close: %s delete on close flag for "
"fnum = %d, file %s\n",
delete_on_close ? "Adding" : "Removing", fsp->fnum,
- fsp->fsp_name ));
+ fsp_str_dbg(fsp)));
lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
NULL);
return False;
}
- if (fsp->conn->admin_user) {
- tok_copy = copy_unix_token(lck, tok);
- tok_copy->uid = (uid_t)0;
- if (tok_copy == NULL) {
- TALLOC_FREE(lck);
- return false;
- }
- tok = tok_copy;
- }
-
- set_delete_on_close_lck(lck, delete_on_close, tok);
+ set_delete_on_close_lck(fsp, lck, delete_on_close,
+ delete_on_close ? tok : NULL);
if (fsp->is_directory) {
- send_stat_cache_delete_message(fsp->fsp_name);
+ SMB_ASSERT(!is_ntfs_stream_smb_fname(fsp->fsp_name));
+ send_stat_cache_delete_message(fsp->conn->sconn->msg_ctx,
+ fsp->fsp_name->base_name);
}
TALLOC_FREE(lck);
+
+ fsp->delete_on_close = delete_on_close;
+
return True;
}
+const struct security_unix_token *get_delete_on_close_token(struct share_mode_lock *lck, uint32_t name_hash)
+{
+ struct delete_token_list *dtl;
+
+ DEBUG(10,("get_delete_on_close_token: name_hash = 0x%x\n",
+ (unsigned int)name_hash ));
+
+ for (dtl = lck->delete_tokens; dtl; dtl = dtl->next) {
+ DEBUG(10,("get_delete_on_close_token: dtl->name_hash = 0x%x\n",
+ (unsigned int)dtl->name_hash ));
+ if (dtl->name_hash == name_hash) {
+ return dtl->delete_token;
+ }
+ }
+ return NULL;
+}
+
+bool is_delete_on_close_set(struct share_mode_lock *lck, uint32_t name_hash)
+{
+ return (get_delete_on_close_token(lck, name_hash) != NULL);
+}
+
bool set_sticky_write_time(struct file_id fileid, struct timespec write_time)
{
struct share_mode_lock *lck;
DEBUG(5,("set_sticky_write_time: %s id=%s\n",
- timestring(debug_ctx(),
+ timestring(talloc_tos(),
convert_timespec_to_time_t(write_time)),
file_id_string_tos(&fileid)));
struct share_mode_lock *lck;
DEBUG(5,("set_write_time: %s id=%s\n",
- timestring(debug_ctx(),
+ timestring(talloc_tos(),
convert_timespec_to_time_t(write_time)),
file_id_string_tos(&fileid)));
struct share_mode_entry *shares;
const char *sharepath;
const char *fname;
+ const char *del_tokens;
+ uint32_t total_del_token_size = 0;
int i;
/* Ensure this is a locking_key record. */
data = (struct locking_data *)rec->value.dptr;
shares = (struct share_mode_entry *)(rec->value.dptr + sizeof(*data));
+ del_tokens = (const char *)rec->value.dptr + sizeof(*data) +
+ data->u.s.num_share_mode_entries*sizeof(*shares);
+
+ for (i = 0; i < data->u.s.num_delete_token_entries; i++) {
+ uint32_t del_token_size;
+ memcpy(&del_token_size, del_tokens, sizeof(uint32_t));
+ total_del_token_size += del_token_size;
+ del_tokens += del_token_size;
+ }
+
sharepath = (const char *)rec->value.dptr + sizeof(*data) +
data->u.s.num_share_mode_entries*sizeof(*shares) +
- data->u.s.delete_token_size;
+ total_del_token_size;
fname = (const char *)rec->value.dptr + sizeof(*data) +
data->u.s.num_share_mode_entries*sizeof(*shares) +
- data->u.s.delete_token_size +
+ total_del_token_size +
strlen(sharepath) + 1;
for (i=0;i<data->u.s.num_share_mode_entries;i++) {
git.samba.org / samba.git / blobdiff