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Diffstat (limited to 'source3/smbd/oplock.c')
-rw-r--r--source3/smbd/oplock.c131
1 files changed, 65 insertions, 66 deletions
diff --git a/source3/smbd/oplock.c b/source3/smbd/oplock.c
index ce00397bbd..b937e8e07d 100644
--- a/source3/smbd/oplock.c
+++ b/source3/smbd/oplock.c
@@ -344,6 +344,54 @@ static void add_oplock_timeout_handler(files_struct *fsp)
}
}
+void break_level2_to_none_async(files_struct *fsp)
+{
+ char *break_msg;
+
+ if (fsp->oplock_type == NO_OPLOCK) {
+ /* We already got a "break to none" message and we've handled
+ * it. just ignore. */
+ DEBUG(3, ("process_oplock_async_level2_break_message: already "
+ "broken to none, ignoring.\n"));
+ return;
+ }
+
+ if (fsp->oplock_type == FAKE_LEVEL_II_OPLOCK) {
+ /* Don't tell the client, just downgrade. */
+ DEBUG(3, ("process_oplock_async_level2_break_message: "
+ "downgrading fake level 2 oplock.\n"));
+ remove_oplock(fsp);
+ return;
+ }
+
+ /* Ensure we're really at level2 state. */
+ SMB_ASSERT(fsp->oplock_type == LEVEL_II_OPLOCK);
+
+ DEBUG(10,("process_oplock_async_level2_break_message: sending break "
+ "to none message for fid %d, file %s\n", fsp->fnum,
+ fsp->fsp_name));
+
+ /* Now send a break to none message to our client. */
+ break_msg = new_break_smb_message(NULL, fsp, OPLOCKLEVEL_NONE);
+ if (break_msg == NULL) {
+ exit_server("Could not talloc break_msg\n");
+ }
+
+ show_msg(break_msg);
+ if (!srv_send_smb(smbd_server_fd(),
+ break_msg, false, 0,
+ IS_CONN_ENCRYPTED(fsp->conn),
+ NULL)) {
+ exit_server_cleanly("oplock_break: srv_send_smb failed.");
+ }
+
+ TALLOC_FREE(break_msg);
+
+ /* Async level2 request, don't send a reply, just remove the oplock. */
+ remove_oplock(fsp);
+
+}
+
/*******************************************************************
This handles the case of a write triggering a break to none
message on a level2 oplock.
@@ -360,7 +408,6 @@ void process_oplock_async_level2_break_message(struct messaging_context *msg_ctx
{
struct share_mode_entry msg;
files_struct *fsp;
- char *break_msg;
if (data->data == NULL) {
DEBUG(0, ("Got NULL buffer\n"));
@@ -375,8 +422,9 @@ void process_oplock_async_level2_break_message(struct messaging_context *msg_ctx
/* De-linearize incoming message. */
message_to_share_mode_entry(&msg, (char *)data->data);
- DEBUG(10, ("Got oplock async level 2 break message from pid %d: %s/%lu\n",
- (int)procid_to_pid(&src), file_id_string_tos(&msg.id), msg.share_file_id));
+ DEBUG(10, ("Got oplock async level 2 break message from pid %s: "
+ "%s/%lu\n", procid_str(debug_ctx(), &src),
+ file_id_string_tos(&msg.id), msg.share_file_id));
fsp = initial_break_processing(msg.id, msg.share_file_id);
@@ -388,52 +436,7 @@ void process_oplock_async_level2_break_message(struct messaging_context *msg_ctx
return;
}
- if (fsp->oplock_type == NO_OPLOCK) {
- /* We already got a "break to none" message and we've handled it.
- * just ignore. */
- DEBUG(3, ("process_oplock_async_level2_break_message: already broken to none, ignoring.\n"));
- return;
- }
-
- if (fsp->oplock_type == FAKE_LEVEL_II_OPLOCK) {
- /* Don't tell the client, just downgrade. */
- DEBUG(3, ("process_oplock_async_level2_break_message: downgrading fake level 2 oplock.\n"));
- remove_oplock(fsp);
- return;
- }
-
- /* Ensure we're really at level2 state. */
- SMB_ASSERT(fsp->oplock_type == LEVEL_II_OPLOCK);
-
- DEBUG(10,("process_oplock_async_level2_break_message: sending break to "
- "none message for fid %d, file %s\n",
- fsp->fnum,
- fsp->fsp_name));
-
- /* Now send a break to none message to our client. */
-
- break_msg = new_break_smb_message(NULL, fsp, OPLOCKLEVEL_NONE);
- if (break_msg == NULL) {
- exit_server("Could not talloc break_msg\n");
- }
-
- /* Need to wait before sending a break message if we sent ourselves this message. */
- if (procid_to_pid(&src) == sys_getpid()) {
- wait_before_sending_break();
- }
-
- show_msg(break_msg);
- if (!srv_send_smb(smbd_server_fd(),
- break_msg, false, 0,
- IS_CONN_ENCRYPTED(fsp->conn),
- NULL)) {
- exit_server_cleanly("oplock_break: srv_send_smb failed.");
- }
-
- TALLOC_FREE(break_msg);
-
- /* Async level2 request, don't send a reply, just remove the oplock. */
- remove_oplock(fsp);
+ break_level2_to_none_async(fsp);
}
/*******************************************************************
@@ -464,8 +467,9 @@ static void process_oplock_break_message(struct messaging_context *msg_ctx,
/* De-linearize incoming message. */
message_to_share_mode_entry(&msg, (char *)data->data);
- DEBUG(10, ("Got oplock break message from pid %d: %s/%lu\n",
- (int)procid_to_pid(&src), file_id_string_tos(&msg.id), msg.share_file_id));
+ DEBUG(10, ("Got oplock break message from pid %s: %s/%lu\n",
+ procid_str(debug_ctx(), &src), file_id_string_tos(&msg.id),
+ msg.share_file_id));
fsp = initial_break_processing(msg.id, msg.share_file_id);
@@ -518,7 +522,7 @@ static void process_oplock_break_message(struct messaging_context *msg_ctx,
}
/* Need to wait before sending a break message if we sent ourselves this message. */
- if (procid_to_pid(&src) == sys_getpid()) {
+ if (procid_is_me(&src)) {
wait_before_sending_break();
}
@@ -571,8 +575,8 @@ static void process_kernel_oplock_break(struct messaging_context *msg_ctx,
pull_file_id_24((char *)data->data, &id);
file_id = (unsigned long)IVAL(data->data, 24);
- DEBUG(10, ("Got kernel oplock break message from pid %d: %s/%u\n",
- (int)procid_to_pid(&src), file_id_string_tos(&id),
+ DEBUG(10, ("Got kernel oplock break message from pid %s: %s/%u\n",
+ procid_str(debug_ctx(), &src), file_id_string_tos(&id),
(unsigned int)file_id));
fsp = initial_break_processing(id, file_id);
@@ -667,9 +671,9 @@ static void process_oplock_break_response(struct messaging_context *msg_ctx,
/* De-linearize incoming message. */
message_to_share_mode_entry(&msg, (char *)data->data);
- DEBUG(10, ("Got oplock break response from pid %d: %s/%lu mid %u\n",
- (int)procid_to_pid(&src), file_id_string_tos(&msg.id), msg.share_file_id,
- (unsigned int)msg.op_mid));
+ DEBUG(10, ("Got oplock break response from pid %s: %s/%lu mid %u\n",
+ procid_str(debug_ctx(), &src), file_id_string_tos(&msg.id),
+ msg.share_file_id, (unsigned int)msg.op_mid));
/* Here's the hack from open.c, store the mid in the 'port' field */
schedule_deferred_open_smb_message(msg.op_mid);
@@ -696,8 +700,8 @@ static void process_open_retry_message(struct messaging_context *msg_ctx,
/* De-linearize incoming message. */
message_to_share_mode_entry(&msg, (char *)data->data);
- DEBUG(10, ("Got open retry msg from pid %d: %s mid %u\n",
- (int)procid_to_pid(&src), file_id_string_tos(&msg.id),
+ DEBUG(10, ("Got open retry msg from pid %s: %s mid %u\n",
+ procid_str(debug_ctx(), &src), file_id_string_tos(&msg.id),
(unsigned int)msg.op_mid));
schedule_deferred_open_smb_message(msg.op_mid);
@@ -788,13 +792,8 @@ static void contend_level2_oplocks_begin_default(files_struct *fsp,
*/
if (procid_is_me(&share_entry->pid)) {
- DATA_BLOB blob = data_blob_const(msg,
- MSG_SMB_SHARE_MODE_ENTRY_SIZE);
- process_oplock_async_level2_break_message(smbd_messaging_context(),
- NULL,
- MSG_SMB_ASYNC_LEVEL2_BREAK,
- share_entry->pid,
- &blob);
+ wait_before_sending_break();
+ break_level2_to_none_async(fsp);
} else {
messaging_send_buf(smbd_messaging_context(),
share_entry->pid,
generated by cgit (git 2.34.1) at 2024-08-07 12:52:27 +0000