#include "includes.h"
#include "system/filesys.h"
+#include "lib/util/server_id.h"
#include "locking/proto.h"
#include "smbd/globals.h"
#include "dbwrap/dbwrap.h"
#include "messages.h"
#include "util_tdb.h"
#include "../librpc/gen_ndr/ndr_open_files.h"
+#include "librpc/gen_ndr/ndr_file_id.h"
#include "locking/leases_db.h"
#undef DBGC_CLASS
plock->lock_flav = lp_posix_cifsu_locktype(fsp);
}
-bool strict_lock_default(files_struct *fsp, struct lock_struct *plock)
+bool strict_lock_check_default(files_struct *fsp, struct lock_struct *plock)
{
struct byte_range_lock *br_lck;
int strict_locking = lp_strict_locking(fsp->conn->params);
}
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_str_dbg(fsp)));
+ uint32_t lease_type = fsp_lease_type(fsp);
+
+ if ((lease_type & SMB2_LEASE_READ) &&
+ (plock->lock_type == READ_LOCK))
+ {
+ DBG_DEBUG("optimisation - read lease on file %s\n",
+ fsp_str_dbg(fsp));
return true;
}
- 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_str_dbg(fsp)));
+
+ if ((lease_type & SMB2_LEASE_WRITE) &&
+ (plock->lock_type == WRITE_LOCK))
+ {
+ DBG_DEBUG("optimisation - write lease on file %s\n",
+ fsp_str_dbg(fsp));
return true;
}
}
* autocleanup. This is the slow path anyway.
*/
br_lck = brl_get_locks(talloc_tos(), fsp);
+ if (br_lck == NULL) {
+ return true;
+ }
ret = brl_locktest(br_lck, plock);
TALLOC_FREE(br_lck);
}
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 do_lock_cancel(files_struct *fsp,
- uint64 smblctx,
+ uint64_t smblctx,
uint64_t count,
uint64_t offset,
enum brl_flavour lock_flav)
Print out a share mode.
********************************************************************/
-char *share_mode_str(TALLOC_CTX *ctx, int num, const struct share_mode_entry *e)
+char *share_mode_str(TALLOC_CTX *ctx, int num,
+ const struct file_id *id,
+ const struct share_mode_entry *e)
{
+ struct server_id_buf tmp;
+
return talloc_asprintf(ctx, "share_mode_entry[%d]: "
"pid = %s, share_access = 0x%x, private_options = 0x%x, "
"access_mask = 0x%x, mid = 0x%llx, type= 0x%x, gen_id = %llu, "
"uid = %u, flags = %u, file_id %s, name_hash = 0x%x",
num,
- procid_str_static(&e->pid),
+ server_id_str_buf(e->pid, &tmp),
e->share_access, e->private_options,
e->access_mask, (unsigned long long)e->op_mid,
e->op_type, (unsigned long long)e->share_file_id,
(unsigned int)e->uid, (unsigned int)e->flags,
- file_id_string_tos(&e->id),
+ file_id_string_tos(id),
(unsigned int)e->name_hash);
}
size_t sn_len;
size_t msg_len;
char *frm = NULL;
- int i;
+ uint32_t i;
bool strip_two_chars = false;
bool has_stream = smb_fname_dst->stream_name != NULL;
struct server_id self_pid = messaging_server_id(msg_ctx);
/* Send the messages. */
for (i=0; i<d->num_share_modes; i++) {
struct share_mode_entry *se = &d->share_modes[i];
+ struct server_id_buf tmp;
+
if (!is_valid_share_mode_entry(se)) {
continue;
}
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),
+ server_id_str_buf(se->pid, &tmp),
file_id_string_tos(&id),
d->servicepath, d->base_name,
has_stream ? d->stream_name : ""));
messaging_send_buf(msg_ctx, se->pid, MSG_SMB_FILE_RENAME,
- (uint8 *)frm, msg_len);
+ (uint8_t *)frm, msg_len);
+ }
+
+ for (i=0; i<d->num_leases; i++) {
+ /* Update the filename in leases_db. */
+ NTSTATUS status;
+ struct share_mode_lease *l;
+
+ l = &d->leases[i];
+
+ status = leases_db_rename(&l->client_guid,
+ &l->lease_key,
+ &id,
+ d->servicepath,
+ d->base_name,
+ d->stream_name);
+ if (!NT_STATUS_IS_OK(status)) {
+ /* Any error recovery possible here ? */
+ DEBUG(1,("Failed to rename lease key for "
+ "renamed file %s:%s. %s\n",
+ d->base_name,
+ d->stream_name,
+ nt_errstr(status)));
+ continue;
+ }
}
return True;
static void remove_share_mode_lease(struct share_mode_data *d,
struct share_mode_entry *e)
{
- struct GUID client_guid;
- struct smb2_lease_key lease_key;
uint16_t op_type;
uint32_t lease_idx;
uint32_t i;
e->lease_idx = UINT32_MAX;
for (i=0; i<d->num_share_modes; i++) {
- if (d->share_modes[i].stale) {
+ struct share_mode_entry *e2 = &d->share_modes[i];
+
+ if (e2->stale) {
continue;
}
- if (e == &d->share_modes[i]) {
+ if (e == e2) {
/* Not ourselves. */
continue;
}
- if (d->share_modes[i].lease_idx == lease_idx) {
+ if (smb2_lease_equal(&e->client_guid,
+ &e->lease_key,
+ &e2->client_guid,
+ &e2->lease_key)) {
break;
}
}
return;
}
- memcpy(&client_guid,
- &d->leases[lease_idx].client_guid,
- sizeof(client_guid));
- lease_key = d->leases[lease_idx].lease_key;
-
d->num_leases -= 1;
d->leases[lease_idx] = d->leases[d->num_leases];
for (i=0; i<d->num_share_modes; i++) {
if (d->share_modes[i].lease_idx == d->num_leases) {
d->share_modes[i].lease_idx = lease_idx;
- d->share_modes[i].lease = &d->leases[lease_idx];
}
}
{
NTSTATUS status;
- status = leases_db_del(&client_guid,
- &lease_key,
- &e->id);
+ status = leases_db_del(&e->client_guid,
+ &e->lease_key,
+ &d->id);
DEBUG(10, ("%s: leases_db_del returned %s\n", __func__,
nt_errstr(status)));
*/
bool share_mode_stale_pid(struct share_mode_data *d, uint32_t idx)
{
+ struct server_id_buf tmp;
struct share_mode_entry *e;
if (idx > d->num_share_modes) {
- DEBUG(1, ("Asking for index %u, only %u around\n",
- idx, (unsigned)d->num_share_modes));
+ DBG_WARNING("Asking for index %"PRIu32", "
+ "only %"PRIu32" around\n",
+ idx,
+ d->num_share_modes);
return false;
}
e = &d->share_modes[idx];
return true;
}
if (serverid_exists(&e->pid)) {
- DEBUG(10, ("PID %s (index %u out of %u) still exists\n",
- procid_str_static(&e->pid), idx,
- (unsigned)d->num_share_modes));
+ DBG_DEBUG("PID %s (index %"PRIu32" out of %"PRIu32") "
+ "still exists\n",
+ server_id_str_buf(e->pid, &tmp),
+ idx,
+ d->num_share_modes);
return false;
}
- DEBUG(10, ("PID %s (index %u out of %u) does not exist anymore\n",
- procid_str_static(&e->pid), idx,
- (unsigned)d->num_share_modes));
+ DBG_DEBUG("PID %s (index %"PRIu32" out of %"PRIu32") "
+ "does not exist anymore\n",
+ server_id_str_buf(e->pid, &tmp),
+ idx,
+ d->num_share_modes);
e->stale = true;
if (d->num_delete_tokens != 0) {
- uint32_t i, num_stale;
-
- /*
- * We cannot have any delete tokens
- * if there are no valid share modes.
- */
-
- num_stale = 0;
+ uint32_t i;
for (i=0; i<d->num_share_modes; i++) {
- if (d->share_modes[i].stale) {
- num_stale += 1;
+ bool valid = !d->share_modes[i].stale;
+ if (valid) {
+ break;
}
}
- if (num_stale == d->num_share_modes) {
+ if (i == d->num_share_modes) {
/*
- * No non-stale share mode found
+ * No valid (non-stale) share mode found, all
+ * who might have set the delete token are
+ * gone.
*/
TALLOC_FREE(d->delete_tokens);
d->num_delete_tokens = 0;
struct share_mode_entry *m = d->share_modes;
m[i] = m[d->num_share_modes-1];
d->num_share_modes -= 1;
- } else {
- i += 1;
+ continue;
}
+ i += 1;
}
}
-bool set_share_mode(struct share_mode_lock *lck, struct files_struct *fsp,
- uid_t uid, uint64_t mid, uint16_t op_type,
- uint32_t lease_idx)
+bool set_share_mode(struct share_mode_lock *lck,
+ struct files_struct *fsp,
+ uid_t uid,
+ uint64_t mid,
+ uint16_t op_type,
+ const struct GUID *client_guid,
+ const struct smb2_lease_key *lease_key)
{
struct share_mode_data *d = lck->data;
struct share_mode_entry *tmp, *e;
- struct share_mode_lease *lease = NULL;
-
- if (lease_idx == UINT32_MAX) {
- lease = NULL;
- } else if (lease_idx >= d->num_leases) {
- return false;
- } else {
- lease = &d->leases[lease_idx];
- }
tmp = talloc_realloc(d, d->share_modes, struct share_mode_entry,
d->num_share_modes+1);
e->access_mask = fsp->access_mask;
e->op_mid = mid;
e->op_type = op_type;
- e->lease_idx = lease_idx;
- e->lease = lease;
+
+ if (op_type == LEASE_OPLOCK) {
+ uint32_t i;
+
+ e->client_guid = *client_guid;
+ e->lease_key = *lease_key;
+
+ /*
+ * Need to set lease_idx. This is essentially
+ * find_share_mode_lease(), but that will go away
+ * soon. So don't add the dependency here.
+ */
+
+ for (i=0; i<d->num_leases; i++) {
+ struct share_mode_lease *l = &d->leases[i];
+
+ if (smb2_lease_equal(client_guid,
+ lease_key,
+ &l->client_guid,
+ &l->lease_key)) {
+ break;
+ }
+ }
+
+ if (i == d->num_leases) {
+ DBG_WARNING("lease not found\n");
+ d->num_share_modes -= 1;
+ return false;
+ }
+
+ e->lease_idx = i;
+ } else {
+ e->lease_idx = UINT32_MAX;
+ }
+
e->time.tv_sec = fsp->open_time.tv_sec;
e->time.tv_usec = fsp->open_time.tv_usec;
- e->id = fsp->file_id;
e->share_file_id = fsp->fh->gen_id;
- e->uid = (uint32)uid;
- e->flags = fsp->posix_open ? SHARE_MODE_FLAG_POSIX_OPEN : 0;
+ e->uid = (uint32_t)uid;
+ e->flags = (fsp->posix_flags & FSP_POSIX_FLAGS_OPEN) ?
+ SHARE_MODE_FLAG_POSIX_OPEN : 0;
e->name_hash = fsp->name_hash;
return true;
}
-static struct share_mode_entry *find_share_mode_entry(
+struct share_mode_entry *find_share_mode_entry(
struct share_mode_lock *lck, files_struct *fsp)
{
struct share_mode_data *d = lck->data;
struct server_id pid;
- int i;
+ uint32_t i;
pid = messaging_server_id(fsp->conn->sconn->msg_ctx);
if (!serverid_equal(&pid, &e->pid)) {
continue;
}
- if (!file_id_equal(&fsp->file_id, &e->id)) {
- continue;
- }
if (fsp->fh->gen_id != e->share_file_id) {
continue;
}
}
/*******************************************************************
- Del the share mode of a file for this process. Return the number of
- entries left.
+ Del the share mode of a file for this process.
********************************************************************/
bool del_share_mode(struct share_mode_lock *lck, files_struct *fsp)
return true;
}
+void reset_delete_on_close_lck(files_struct *fsp,
+ struct share_mode_lock *lck)
+{
+ struct share_mode_data *d = lck->data;
+ uint32_t i;
+
+ for (i=0; i<d->num_delete_tokens; i++) {
+ struct delete_token *dt = &d->delete_tokens[i];
+
+ if (dt->name_hash == fsp->name_hash) {
+ d->modified = true;
+
+ /* Delete this entry. */
+ TALLOC_FREE(dt->delete_nt_token);
+ TALLOC_FREE(dt->delete_token);
+ *dt = d->delete_tokens[d->num_delete_tokens-1];
+ d->num_delete_tokens -= 1;
+ }
+ }
+}
+
/****************************************************************************
Sets the delete on close flag over all share modes on this file.
Modify the share mode entry for all files open
void set_delete_on_close_lck(files_struct *fsp,
struct share_mode_lock *lck,
- bool delete_on_close,
const struct security_token *nt_tok,
const struct security_unix_token *tok)
{
+ struct messaging_context *msg_ctx = fsp->conn->sconn->msg_ctx;
struct share_mode_data *d = lck->data;
- int i;
+ uint32_t i;
bool ret;
+ DATA_BLOB fid_blob = {};
+ enum ndr_err_code ndr_err;
- if (delete_on_close) {
- SMB_ASSERT(nt_tok != NULL);
- SMB_ASSERT(tok != NULL);
- } else {
- SMB_ASSERT(nt_tok == NULL);
- SMB_ASSERT(tok == NULL);
- }
+ SMB_ASSERT(nt_tok != NULL);
+ SMB_ASSERT(tok != NULL);
for (i=0; i<d->num_delete_tokens; i++) {
struct delete_token *dt = &d->delete_tokens[i];
if (dt->name_hash == fsp->name_hash) {
d->modified = true;
- if (delete_on_close == false) {
- /* Delete this entry. */
- TALLOC_FREE(dt->delete_nt_token);
- TALLOC_FREE(dt->delete_token);
- *dt = d->delete_tokens[
- d->num_delete_tokens-1];
- d->num_delete_tokens -= 1;
- } else {
- /* Replace this token with the
- given tok. */
- TALLOC_FREE(dt->delete_nt_token);
- dt->delete_nt_token = dup_nt_token(dt, nt_tok);
- SMB_ASSERT(dt->delete_nt_token != NULL);
- TALLOC_FREE(dt->delete_token);
- dt->delete_token = copy_unix_token(dt, tok);
- SMB_ASSERT(dt->delete_token != NULL);
- }
+
+ /* Replace this token with the given tok. */
+ TALLOC_FREE(dt->delete_nt_token);
+ dt->delete_nt_token = dup_nt_token(dt, nt_tok);
+ SMB_ASSERT(dt->delete_nt_token != NULL);
+ TALLOC_FREE(dt->delete_token);
+ dt->delete_token = copy_unix_token(dt, tok);
+ SMB_ASSERT(dt->delete_token != NULL);
+
return;
}
}
- if (!delete_on_close) {
- /* Nothing to delete - not found. */
- return;
- }
-
ret = add_delete_on_close_token(lck->data, fsp->name_hash, nt_tok, tok);
SMB_ASSERT(ret);
+
+ ndr_err = ndr_push_struct_blob(&fid_blob, talloc_tos(), &fsp->file_id,
+ (ndr_push_flags_fn_t)ndr_push_file_id);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(10, ("ndr_push_file_id failed: %s\n",
+ ndr_errstr(ndr_err)));
+ }
+
+ for (i=0; i<d->num_share_modes; i++) {
+ struct share_mode_entry *e = &d->share_modes[i];
+ NTSTATUS status;
+
+ status = messaging_send(
+ msg_ctx, e->pid, MSG_SMB_NOTIFY_CANCEL_DELETED,
+ &fid_blob);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ struct server_id_buf tmp;
+ DEBUG(10, ("%s: messaging_send to %s returned %s\n",
+ __func__, server_id_str_buf(e->pid, &tmp),
+ nt_errstr(status)));
+ }
+ }
+
+ TALLOC_FREE(fid_blob.data);
}
bool set_delete_on_close(files_struct *fsp, bool delete_on_close,
}
if (delete_on_close) {
- set_delete_on_close_lck(fsp, lck, true,
- nt_tok,
- tok);
+ set_delete_on_close_lck(fsp, lck, nt_tok, tok);
} else {
- set_delete_on_close_lck(fsp, lck, false,
- NULL,
- NULL);
+ reset_delete_on_close_lck(fsp, lck);
}
if (fsp->is_directory) {
}
return d->old_write_time;
}
+
+bool file_has_open_streams(files_struct *fsp)
+{
+ struct share_mode_lock *lock = NULL;
+ struct share_mode_data *d = NULL;
+ uint32_t i;
+
+ lock = get_existing_share_mode_lock(talloc_tos(), fsp->file_id);
+ if (lock == NULL) {
+ return false;
+ }
+ d = lock->data;
+
+ for (i = 0; i < d->num_share_modes; i++) {
+ struct share_mode_entry *e = &d->share_modes[i];
+
+ if (share_mode_stale_pid(d, i)) {
+ continue;
+ }
+
+ if (e->private_options &
+ NTCREATEX_OPTIONS_PRIVATE_STREAM_BASEOPEN)
+ {
+ TALLOC_FREE(lock);
+ return true;
+ }
+ }
+
+ TALLOC_FREE(lock);
+ return false;
+}
git.samba.org / gd / samba-autobuild / .git / blobdiff