*/
#include "includes.h"
+#include "librpc/gen_ndr/messaging.h"
+#include "smbd/globals.h"
+#include "dbwrap.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_LOCKING
Called in the read/write codepath.
****************************************************************************/
-bool is_locked(files_struct *fsp,
- uint32 smbpid,
- SMB_BIG_UINT count,
- SMB_BIG_UINT offset,
- enum brl_type lock_type)
+void init_strict_lock_struct(files_struct *fsp,
+ uint64_t smblctx,
+ br_off start,
+ br_off size,
+ enum brl_type lock_type,
+ struct lock_struct *plock)
+{
+ SMB_ASSERT(lock_type == READ_LOCK || lock_type == WRITE_LOCK);
+
+ plock->context.smblctx = smblctx;
+ plock->context.tid = fsp->conn->cnum;
+ plock->context.pid = sconn_server_id(fsp->conn->sconn);
+ plock->start = start;
+ plock->size = size;
+ plock->fnum = fsp->fnum;
+ plock->lock_type = lock_type;
+ plock->lock_flav = lp_posix_cifsu_locktype(fsp);
+}
+
+bool strict_lock_default(files_struct *fsp, struct lock_struct *plock)
{
int strict_locking = lp_strict_locking(fsp->conn->params);
- enum brl_flavour lock_flav = lp_posix_cifsu_locktype(fsp);
- bool ret = True;
-
- if (count == 0) {
- return False;
+ bool ret = False;
+
+ if (plock->size == 0) {
+ return True;
}
if (!lp_locking(fsp->conn->params) || !strict_locking) {
- return False;
+ return True;
}
if (strict_locking == Auto) {
- if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type) && (lock_type == READ_LOCK || lock_type == WRITE_LOCK)) {
- DEBUG(10,("is_locked: optimisation - exclusive oplock on file %s\n", fsp->fsp_name ));
- ret = False;
+ 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_str_dbg(fsp)));
+ ret = True;
} else if ((fsp->oplock_type == LEVEL_II_OPLOCK) &&
- (lock_type == READ_LOCK)) {
- DEBUG(10,("is_locked: optimisation - level II oplock on file %s\n", fsp->fsp_name ));
- ret = False;
+ (plock->lock_type == READ_LOCK)) {
+ 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(NULL, fsp);
+ struct byte_range_lock *br_lck;
+
+ br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
- return False;
+ return True;
}
- ret = !brl_locktest(br_lck,
- smbpid,
- procid_self(),
- offset,
- count,
- lock_type,
- lock_flav);
- TALLOC_FREE(br_lck);
+ ret = brl_locktest(br_lck,
+ plock->context.smblctx,
+ plock->context.pid,
+ plock->start,
+ plock->size,
+ plock->lock_type,
+ plock->lock_flav);
}
} else {
- struct byte_range_lock *br_lck = brl_get_locks_readonly(NULL, fsp);
+ struct byte_range_lock *br_lck;
+
+ br_lck = brl_get_locks_readonly(fsp);
if (!br_lck) {
- return False;
+ return True;
}
- ret = !brl_locktest(br_lck,
- smbpid,
- procid_self(),
- offset,
- count,
- lock_type,
- lock_flav);
- TALLOC_FREE(br_lck);
- }
-
- DEBUG(10,("is_locked: flavour = %s brl start=%.0f len=%.0f %s for fnum %d file %s\n",
- lock_flav_name(lock_flav),
- (double)offset, (double)count, ret ? "locked" : "unlocked",
- fsp->fnum, fsp->fsp_name ));
+ ret = brl_locktest(br_lck,
+ plock->context.smblctx,
+ plock->context.pid,
+ plock->start,
+ plock->size,
+ plock->lock_type,
+ plock->lock_flav);
+ }
+
+ DEBUG(10,("strict_lock_default: flavour = %s brl start=%.0f "
+ "len=%.0f %s for fnum %d file %s\n",
+ lock_flav_name(plock->lock_flav),
+ (double)plock->start, (double)plock->size,
+ ret ? "unlocked" : "locked",
+ plock->fnum, fsp_str_dbg(fsp)));
return ret;
}
+void strict_unlock_default(files_struct *fsp, struct lock_struct *plock)
+{
+}
+
/****************************************************************************
Find out if a lock could be granted - return who is blocking us if we can't.
****************************************************************************/
NTSTATUS query_lock(files_struct *fsp,
- uint32 *psmbpid,
- SMB_BIG_UINT *pcount,
- SMB_BIG_UINT *poffset,
+ 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(NULL, 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,
+ enum brl_flavour lock_flav)
+{
+ if (lock_flav == WINDOWS_LOCK &&
+ fsp->current_lock_count != NO_LOCKING_COUNT) {
+ /* blocking ie. pending, locks also count here,
+ * as this is an efficiency counter to avoid checking
+ * the lock db. on close. JRA. */
+
+ fsp->current_lock_count++;
+ } else {
+ /* Notice that this has had a POSIX lock request.
+ * We can't count locks after this so forget them.
+ */
+ fsp->current_lock_count = NO_LOCKING_COUNT;
+ }
+}
+
+static void decrement_current_lock_count(files_struct *fsp,
+ enum brl_flavour lock_flav)
+{
+ if (lock_flav == WINDOWS_LOCK &&
+ fsp->current_lock_count != NO_LOCKING_COUNT) {
+ SMB_ASSERT(fsp->current_lock_count > 0);
+ fsp->current_lock_count--;
+ }
}
/****************************************************************************
struct byte_range_lock *do_lock(struct messaging_context *msg_ctx,
files_struct *fsp,
- uint32 lock_pid,
- SMB_BIG_UINT count,
- SMB_BIG_UINT offset,
+ 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;
/* NOTE! 0 byte long ranges ARE allowed and should be stored */
- DEBUG(10,("do_lock: lock flavour %s lock type %s start=%.0f len=%.0f requested for fnum %d file %s\n",
+ DEBUG(10,("do_lock: lock flavour %s lock type %s start=%.0f len=%.0f "
+ "blocking_lock=%s requested for fnum %d file %s\n",
lock_flav_name(lock_flav), lock_type_name(lock_type),
- (double)offset, (double)count, fsp->fnum, fsp->fsp_name ));
+ (double)offset, (double)count, blocking_lock ? "true" :
+ "false", fsp->fnum, fsp_str_dbg(fsp)));
- br_lck = brl_get_locks(NULL, fsp);
+ br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
*perr = NT_STATUS_NO_MEMORY;
return NULL;
*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);
- if (lock_flav == WINDOWS_LOCK &&
- fsp->current_lock_count != NO_LOCKING_COUNT) {
- /* blocking ie. pending, locks also count here,
- * as this is an efficiency counter to avoid checking
- * the lock db. on close. JRA. */
-
- fsp->current_lock_count++;
- } else {
- /* Notice that this has had a POSIX lock request.
- * We can't count locks after this so forget them.
- */
- fsp->current_lock_count = NO_LOCKING_COUNT;
- }
+ DEBUG(10, ("do_lock: returning status=%s\n", nt_errstr(*perr)));
+ increment_current_lock_count(fsp, lock_flav);
return br_lck;
}
NTSTATUS do_unlock(struct messaging_context *msg_ctx,
files_struct *fsp,
- uint32 lock_pid,
- SMB_BIG_UINT count,
- SMB_BIG_UINT offset,
+ uint64_t smblctx,
+ uint64_t count,
+ uint64_t offset,
enum brl_flavour lock_flav)
{
bool ok = False;
}
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(NULL, fsp);
+ br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
ok = brl_unlock(msg_ctx,
br_lck,
- lock_pid,
- procid_self(),
+ smblctx,
+ sconn_server_id(fsp->conn->sconn),
offset,
count,
lock_flav);
return NT_STATUS_RANGE_NOT_LOCKED;
}
- if (lock_flav == WINDOWS_LOCK &&
- fsp->current_lock_count != NO_LOCKING_COUNT) {
- SMB_ASSERT(fsp->current_lock_count > 0);
- fsp->current_lock_count--;
- }
-
+ decrement_current_lock_count(fsp, lock_flav);
return NT_STATUS_OK;
}
****************************************************************************/
NTSTATUS do_lock_cancel(files_struct *fsp,
- uint32 lock_pid,
- SMB_BIG_UINT count,
- SMB_BIG_UINT offset,
- enum brl_flavour lock_flav)
+ uint64 smblctx,
+ uint64_t count,
+ uint64_t offset,
+ enum brl_flavour lock_flav,
+ struct blocking_lock_record *blr)
{
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;
}
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(NULL, fsp);
+ br_lck = brl_get_locks(talloc_tos(), fsp);
if (!br_lck) {
return NT_STATUS_NO_MEMORY;
}
ok = brl_lock_cancel(br_lck,
- lock_pid,
- procid_self(),
+ smblctx,
+ sconn_server_id(fsp->conn->sconn),
offset,
count,
- lock_flav);
-
+ lock_flav,
+ blr);
+
TALLOC_FREE(br_lck);
if (!ok) {
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
- if (lock_flav == WINDOWS_LOCK &&
- fsp->current_lock_count != NO_LOCKING_COUNT) {
- SMB_ASSERT(fsp->current_lock_count > 0);
- fsp->current_lock_count--;
- }
-
+ decrement_current_lock_count(fsp, lock_flav);
return NT_STATUS_OK;
}
****************************************************************************/
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;
return;
}
- br_lck = brl_get_locks(NULL,fsp);
+ 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);
}
Initialise the locking functions.
****************************************************************************/
-static int open_read_only;
-
-bool locking_init(int read_only)
+static bool locking_init_internal(bool read_only)
{
brl_init(read_only);
if (lock_db)
return True;
- lock_db = db_open(NULL, lock_path("locking.tdb"), 0,
- TDB_DEFAULT
- |TDB_VOLATILE
- |(read_only?0x0:TDB_CLEAR_IF_FIRST),
+ lock_db = db_open(NULL, lock_path("locking.tdb"),
+ lp_open_files_db_hash_size(),
+ TDB_DEFAULT|TDB_VOLATILE|TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH,
read_only?O_RDONLY:O_RDWR|O_CREAT, 0644);
if (!lock_db) {
if (!posix_locking_init(read_only))
return False;
- open_read_only = read_only;
-
return True;
}
+bool locking_init(void)
+{
+ return locking_init_internal(false);
+}
+
+bool locking_init_readonly(void)
+{
+ return locking_init_internal(true);
+}
+
/*******************************************************************
Deinitialize the share_mode management.
******************************************************************/
bool locking_end(void)
{
- brl_shutdown(open_read_only);
- if (lock_db) {
- TALLOC_FREE(lock_db);
- }
- return True;
+ brl_shutdown();
+ TALLOC_FREE(lock_db);
+ return true;
}
/*******************************************************************
Form a static locking key for a dev/inode pair.
******************************************************************/
-static TDB_DATA locking_key(struct file_id id)
+static TDB_DATA locking_key(const struct file_id *id, struct file_id *tmp)
{
- static struct file_id key;
- TDB_DATA kbuf;
- key = id;
- kbuf.dptr = (uint8 *)&key;
- kbuf.dsize = sizeof(key);
- return kbuf;
+ *tmp = *id;
+ return make_tdb_data((const uint8_t *)tmp, sizeof(*tmp));
}
/*******************************************************************
Print out a share mode.
********************************************************************/
-char *share_mode_str(TALLOC_CTX *ctx, int num, struct share_mode_entry *e)
+char *share_mode_str(TALLOC_CTX *ctx, int num, const struct share_mode_entry *e)
{
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, "
+ "access_mask = 0x%x, mid = 0x%llx, type= 0x%x, gen_id = %lu, "
"uid = %u, flags = %u, file_id %s",
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));
}
for (i = 0; i < num_share_modes; i++) {
struct share_mode_entry entry;
- char *str = share_mode_str(NULL, i, &entry);
+ char *str;
+
+ /*
+ * We need to memcpy the entry here due to alignment
+ * restrictions that are not met when directly accessing
+ * shares[i]
+ */
memcpy(&entry, &shares[i], sizeof(struct share_mode_entry));
- DEBUG(10,("print_share_mode_table: %s\n",
- str ? str : ""));
+ str = share_mode_str(talloc_tos(), i, &entry);
+
+ DEBUG(10,("print_share_mode_table: %s\n", str ? str : ""));
TALLOC_FREE(str);
}
}
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;
+ struct locking_data data;
int i;
if (dbuf.dsize < sizeof(struct locking_data)) {
smb_panic("parse_share_modes: buffer too short");
}
- data = (struct locking_data *)dbuf.dptr;
+ memcpy(&data, dbuf.dptr, sizeof(data));
- lck->delete_on_close = data->u.s.delete_on_close;
- lck->num_share_modes = data->u.s.num_share_mode_entries;
+ 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, "
- "num_share_modes: %d\n",
- lck->delete_on_close,
- lck->num_share_modes));
+ 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(talloc_tos(),
+ convert_timespec_to_time_t(lck->old_write_time)),
+ timestring(talloc_tos(),
+ convert_timespec_to_time_t(
+ lck->changed_write_time)),
+ (unsigned int)data.u.s.delete_token_size,
+ lck->num_share_modes));
if ((lck->num_share_modes < 0) || (lck->num_share_modes > 1000000)) {
DEBUG(0, ("invalid number of share modes: %d\n",
}
lck->share_modes = (struct share_mode_entry *)
- TALLOC_MEMDUP(lck, dbuf.dptr+sizeof(*data),
+ TALLOC_MEMDUP(lck,
+ dbuf.dptr+sizeof(struct locking_data),
lck->num_share_modes *
sizeof(struct share_mode_entry));
}
/* Get any delete token. */
- if (data->u.s.delete_token_size) {
- uint8 *p = dbuf.dptr + sizeof(*data) +
+ 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) {
+ 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));
+ data.u.s.delete_token_size));
smb_panic("parse_share_modes: invalid token size");
}
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 -
+ 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) {
}
/* Save off the associated service path and filename. */
- lck->servicepath = talloc_strdup(lck, (const char *)dbuf.dptr + sizeof(*data) +
- (lck->num_share_modes *
- sizeof(struct share_mode_entry)) +
- data->u.s.delete_token_size );
- if (lck->servicepath == NULL) {
- smb_panic("parse_share_modes: talloc_strdup failed");
- }
+ 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;
- lck->filename = talloc_strdup(lck, (const char *)dbuf.dptr + sizeof(*data) +
- (lck->num_share_modes *
- sizeof(struct share_mode_entry)) +
- data->u.s.delete_token_size +
- strlen(lck->servicepath) + 1 );
- if (lck->filename == NULL) {
- smb_panic("parse_share_modes: talloc_strdup failed");
- }
+ 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 +
+ strlen(lck->servicepath) + 1;
+
+ lck->stream_name = (const char *)dbuf.dptr + sizeof(struct locking_data) +
+ (lck->num_share_modes * sizeof(struct share_mode_entry)) +
+ data.u.s.delete_token_size +
+ strlen(lck->servicepath) + 1 +
+ strlen(lck->base_name) + 1;
/*
* Ensure that each entry has a real process attached.
for (i = 0; i < lck->num_share_modes; i++) {
struct share_mode_entry *entry_p = &lck->share_modes[i];
- char *str = share_mode_str(NULL, i, entry_p);
+ char *str = NULL;
+ if (DEBUGLEVEL >= 10) {
+ str = share_mode_str(NULL, i, entry_p);
+ }
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;
+ ssize_t sp_len, bn_len, sn_len;
uint32 delete_token_size;
result.dptr = NULL;
}
sp_len = strlen(lck->servicepath);
+ bn_len = strlen(lck->base_name);
+ sn_len = lck->stream_name != NULL ? strlen(lck->stream_name) : 0;
+
delete_token_size = (lck->delete_token ?
(sizeof(uid_t) + sizeof(gid_t) + (lck->delete_token->ngroups*sizeof(gid_t))) : 0);
lck->num_share_modes * sizeof(struct share_mode_entry) +
delete_token_size +
sp_len + 1 +
- strlen(lck->filename) + 1;
+ bn_len + 1 +
+ sn_len + 1;
result.dptr = TALLOC_ARRAY(lck, uint8, result.dsize);
if (result.dptr == NULL) {
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;
- DEBUG(10, ("unparse_share_modes: del: %d, tok = %u, num: %d\n",
- data->u.s.delete_on_close,
- (unsigned int)data->u.s.delete_token_size,
- data->u.s.num_share_mode_entries));
+
+ DEBUG(10,("unparse_share_modes: del: %d, owrt: %s cwrt: %s, tok: %u, "
+ "num: %d\n", data->u.s.delete_on_close,
+ timestring(talloc_tos(),
+ convert_timespec_to_time_t(lck->old_write_time)),
+ timestring(talloc_tos(),
+ convert_timespec_to_time_t(
+ lck->changed_write_time)),
+ (unsigned int)data->u.s.delete_token_size,
+ data->u.s.num_share_mode_entries));
+
memcpy(result.dptr + sizeof(*data), lck->share_modes,
sizeof(struct share_mode_entry)*lck->num_share_modes);
offset = sizeof(*data) +
safe_strcpy((char *)result.dptr + offset, lck->servicepath,
result.dsize - offset - 1);
offset += sp_len + 1;
- safe_strcpy((char *)result.dptr + offset, lck->filename,
+ safe_strcpy((char *)result.dptr + offset, lck->base_name,
+ result.dsize - offset - 1);
+ offset += bn_len + 1;
+ safe_strcpy((char *)result.dptr + offset, lck->stream_name,
result.dsize - offset - 1);
if (DEBUGLEVEL >= 10) {
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,
- TDB_DATA share_mode_data)
+ const struct smb_filename *smb_fname,
+ TDB_DATA share_mode_data,
+ const struct timespec *old_write_time)
{
/* Ensure we set every field here as the destructor must be
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;
+ ZERO_STRUCT(lck->old_write_time);
+ ZERO_STRUCT(lck->changed_write_time);
lck->fresh = False;
lck->modified = 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;
}
+ lck->old_write_time = *old_write_time;
} else {
if (!parse_share_modes(share_mode_data, lck)) {
DEBUG(0, ("Could not parse share modes\n"));
}
struct share_mode_lock *get_share_mode_lock(TALLOC_CTX *mem_ctx,
- struct file_id id,
+ 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;
- TDB_DATA key = locking_key(id);
+ struct file_id tmp;
+ TDB_DATA key = locking_key(&id, &tmp);
if (!(lck = TALLOC_P(mem_ctx, struct share_mode_lock))) {
DEBUG(0, ("talloc failed\n"));
return NULL;
}
- if (!fill_share_mode_lock(lck, id, servicepath, fname,
- lck->record->value)) {
+ 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);
return NULL;
}
struct share_mode_lock *fetch_share_mode_unlocked(TALLOC_CTX *mem_ctx,
- struct file_id id,
- const char *servicepath,
- const char *fname)
+ const struct file_id id)
{
struct share_mode_lock *lck;
- TDB_DATA key = locking_key(id);
+ struct file_id tmp;
+ TDB_DATA key = locking_key(&id, &tmp);
TDB_DATA data;
if (!(lck = TALLOC_P(mem_ctx, struct share_mode_lock))) {
return NULL;
}
- if (!fill_share_mode_lock(lck, id, servicepath, fname, data)) {
- 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;
}
- TALLOC_FREE(data.dptr);
-
return lck;
}
bool rename_share_filename(struct messaging_context *msg_ctx,
struct share_mode_lock *lck,
const char *servicepath,
- const char *newname)
+ 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);
return False;
}
- push_file_id_16(frm, &lck->id);
+ push_file_id_24(frm, &lck->id);
DEBUG(10,("rename_share_filename: msg_len = %u\n", (unsigned int)msg_len ));
- safe_strcpy(&frm[16], lck->servicepath, sp_len);
- safe_strcpy(&frm[16 + sp_len + 1], lck->filename, fn_len);
+ safe_strcpy(&frm[24], lck->servicepath, sp_len);
+ safe_strcpy(&frm[24 + sp_len + 1], lck->base_name, bn_len);
+ safe_strcpy(&frm[24 + sp_len + 1 + bn_len + 1], lck->stream_name,
+ sn_len);
/* Send the messages. */
for (i=0; i<lck->num_share_modes; i++) {
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);
return True;
}
-bool get_delete_on_close_flag(struct file_id id)
+void get_file_infos(struct file_id id,
+ bool *delete_on_close,
+ struct timespec *write_time)
{
- bool result;
struct share_mode_lock *lck;
-
- if (!(lck = fetch_share_mode_unlocked(NULL, id, NULL, NULL))) {
- return False;
+
+ if (delete_on_close) {
+ *delete_on_close = false;
+ }
+
+ if (write_time) {
+ ZERO_STRUCTP(write_time);
+ }
+
+ if (!(lck = fetch_share_mode_unlocked(talloc_tos(), id))) {
+ return;
+ }
+
+ if (delete_on_close) {
+ *delete_on_close = lck->delete_on_close;
+ }
+
+ if (write_time) {
+ struct timespec wt;
+
+ wt = lck->changed_write_time;
+ if (null_timespec(wt)) {
+ wt = lck->old_write_time;
+ }
+
+ *write_time = wt;
}
- result = lck->delete_on_close;
+
TALLOC_FREE(lck);
- return result;
}
bool is_valid_share_mode_entry(const struct share_mode_entry *e)
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;
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, bool initial_delete_on_close_allowed)
+ uid_t uid, uint64_t mid, uint16 op_type)
{
struct share_mode_entry entry;
fill_share_mode_entry(&entry, fsp, uid, mid, op_type);
- if (initial_delete_on_close_allowed) {
- entry.flags |= SHARE_MODE_ALLOW_INITIAL_DELETE_ON_CLOSE;
- }
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) {
}
e->op_mid = 0;
- e->op_type = NO_OPLOCK;
+ if (EXCLUSIVE_OPLOCK_TYPE(fsp->oplock_type)) {
+ /*
+ * Going from exclusive or batch,
+ * we always go through FAKE_LEVEL_II
+ * first.
+ */
+ e->op_type = FAKE_LEVEL_II_OPLOCK;
+ } else {
+ e->op_type = NO_OPLOCK;
+ }
lck->modified = True;
return True;
}
}
/****************************************************************************
- 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.
*/
!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;
}
-/****************************************************************************
- Do we have an open file handle that created this entry ?
-****************************************************************************/
-
-bool can_set_initial_delete_on_close(const struct share_mode_lock *lck)
-{
- int i;
-
- for (i=0; i<lck->num_share_modes; i++) {
- if (lck->share_modes[i].flags & SHARE_MODE_ALLOW_INITIAL_DELETE_ON_CLOSE) {
- return True;
- }
- }
- return False;
-}
-
/*************************************************************************
Return a talloced copy of a UNIX_USER_TOKEN. NULL on fail.
(Should this be in locking.c.... ?).
*************************************************************************/
-static UNIX_USER_TOKEN *copy_unix_token(TALLOC_CTX *ctx, UNIX_USER_TOKEN *tok)
+static UNIX_USER_TOKEN *copy_unix_token(TALLOC_CTX *ctx, const UNIX_USER_TOKEN *tok)
{
UNIX_USER_TOKEN *cpy;
Replace the delete on close token.
****************************************************************************/
-void set_delete_on_close_token(struct share_mode_lock *lck, UNIX_USER_TOKEN *tok)
+void set_delete_on_close_token(struct share_mode_lock *lck, const UNIX_USER_TOKEN *tok)
{
- /* Ensure there's no token. */
- if (lck->delete_token) {
- TALLOC_FREE(lck->delete_token); /* Also deletes groups... */
- lck->delete_token = NULL;
- }
+ TALLOC_FREE(lck->delete_token); /* Also deletes groups... */
/* Copy the new token (can be NULL). */
lck->delete_token = copy_unix_token(lck, tok);
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, UNIX_USER_TOKEN *tok)
+void set_delete_on_close_lck(struct share_mode_lock *lck, bool delete_on_close, const UNIX_USER_TOKEN *tok)
{
if (lck->delete_on_close != delete_on_close) {
set_delete_on_close_token(lck, tok);
}
}
-bool set_delete_on_close(files_struct *fsp, bool delete_on_close, UNIX_USER_TOKEN *tok)
+bool set_delete_on_close(files_struct *fsp, bool delete_on_close, const UNIX_USER_TOKEN *tok)
{
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)));
- if (fsp->is_stat) {
- return True;
- }
-
- lck = get_share_mode_lock(NULL, fsp->file_id, NULL, NULL);
+ lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
+ NULL);
if (lck == NULL) {
return False;
}
set_delete_on_close_lck(lck, delete_on_close, tok);
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;
}
-/****************************************************************************
- Sets the allow initial delete on close flag for this share mode.
-****************************************************************************/
+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(talloc_tos(),
+ convert_timespec_to_time_t(write_time)),
+ file_id_string_tos(&fileid)));
-bool set_allow_initial_delete_on_close(struct share_mode_lock *lck, files_struct *fsp, bool delete_on_close)
+ lck = get_share_mode_lock(NULL, fileid, NULL, NULL, NULL);
+ if (lck == NULL) {
+ return False;
+ }
+
+ if (timespec_compare(&lck->changed_write_time, &write_time) != 0) {
+ lck->modified = True;
+ lck->changed_write_time = write_time;
+ }
+
+ TALLOC_FREE(lck);
+ return True;
+}
+
+bool set_write_time(struct file_id fileid, struct timespec write_time)
{
- struct share_mode_entry entry, *e;
+ struct share_mode_lock *lck;
- /* Don't care about the pid owner being correct here - just a search. */
- fill_share_mode_entry(&entry, fsp, (uid_t)-1, 0, NO_OPLOCK);
+ DEBUG(5,("set_write_time: %s id=%s\n",
+ timestring(talloc_tos(),
+ convert_timespec_to_time_t(write_time)),
+ file_id_string_tos(&fileid)));
- e = find_share_mode_entry(lck, &entry);
- if (e == NULL) {
+ lck = get_share_mode_lock(NULL, fileid, NULL, NULL, NULL);
+ if (lck == NULL) {
return False;
}
- if (delete_on_close) {
- e->flags |= SHARE_MODE_ALLOW_INITIAL_DELETE_ON_CLOSE;
- } else {
- e->flags &= ~SHARE_MODE_ALLOW_INITIAL_DELETE_ON_CLOSE;
+ if (timespec_compare(&lck->old_write_time, &write_time) != 0) {
+ lck->modified = True;
+ lck->old_write_time = write_time;
}
- lck->modified = True;
+
+ TALLOC_FREE(lck);
return True;
}
+
struct forall_state {
void (*fn)(const struct share_mode_entry *entry,
const char *sharepath,
git.samba.org / ira / wip.git / blobdiff