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2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771 
 kernel/net/rxrpc/conn_event.c
....@@ -1,12 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /* connection-level event handling
23  *
34  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
45  * Written by David Howells (dhowells@redhat.com)
5
- *
6
- * This program is free software; you can redistribute it and/or
7
- * modify it under the terms of the GNU General Public License
8
- * as published by the Free Software Foundation; either version
9
- * 2 of the License, or (at your option) any later version.
106  */
117 
128 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
....@@ -153,19 +149,20 @@
153149  * pass a connection-level abort onto all calls on that connection
154150  */
155151 static void rxrpc_abort_calls(struct rxrpc_connection *conn,
156
-			      enum rxrpc_call_completion compl)
152
+			      enum rxrpc_call_completion compl,
153
+			      rxrpc_serial_t serial)
157154 {
158155 	struct rxrpc_call *call;
159156 	int i;
160157 
161158 	_enter("{%d},%x", conn->debug_id, conn->abort_code);
162159 
163
-	spin_lock(&conn->channel_lock);
160
+	spin_lock(&conn->bundle->channel_lock);
164161 
165162 	for (i = 0; i < RXRPC_MAXCALLS; i++) {
166163 		call = rcu_dereference_protected(
167164 			conn->channels[i].call,
168
-			lockdep_is_held(&conn->channel_lock));
165
+			lockdep_is_held(&conn->bundle->channel_lock));
169166 		if (call) {
170167 			if (compl == RXRPC_CALL_LOCALLY_ABORTED)
171168 				trace_rxrpc_abort(call->debug_id,
....@@ -173,14 +170,16 @@
173170 						  call->call_id, 0,
174171 						  conn->abort_code,
175172 						  conn->error);
176
-			if (rxrpc_set_call_completion(call, compl,
177
-						      conn->abort_code,
178
-						      conn->error))
179
-				rxrpc_notify_socket(call);
173
+			else
174
+				trace_rxrpc_rx_abort(call, serial,
175
+						     conn->abort_code);
176
+			rxrpc_set_call_completion(call, compl,
177
+						  conn->abort_code,
178
+						  conn->error);
180179 		}
181180 	}
182181 
183
-	spin_unlock(&conn->channel_lock);
182
+	spin_unlock(&conn->bundle->channel_lock);
184183 	_leave("");
185184 }
186185 
....@@ -211,9 +210,8 @@
211210 	conn->error = error;
212211 	conn->abort_code = abort_code;
213212 	conn->state = RXRPC_CONN_LOCALLY_ABORTED;
213
+	set_bit(RXRPC_CONN_DONT_REUSE, &conn->flags);
214214 	spin_unlock_bh(&conn->state_lock);
215
-
216
-	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED);
217215 
218216 	msg.msg_name	= &conn->params.peer->srx.transport;
219217 	msg.msg_namelen	= conn->params.peer->srx.transport_len;
....@@ -242,6 +240,7 @@
242240 	len = iov[0].iov_len + iov[1].iov_len;
243241 
244242 	serial = atomic_inc_return(&conn->serial);
243
+	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, serial);
245244 	whdr.serial = htonl(serial);
246245 	_proto("Tx CONN ABORT %%%u { %d }", serial, conn->abort_code);
247246 
....@@ -271,7 +270,7 @@
271270 	if (call) {
272271 		write_lock_bh(&call->state_lock);
273272 		if (call->state == RXRPC_CALL_SERVER_SECURING) {
274
-			call->state = RXRPC_CALL_SERVER_ACCEPTING;
273
+			call->state = RXRPC_CALL_SERVER_RECV_REQUEST;
275274 			rxrpc_notify_socket(call);
276275 		}
277276 		write_unlock_bh(&call->state_lock);
....@@ -321,7 +320,8 @@
321320 		conn->error = -ECONNABORTED;
322321 		conn->abort_code = abort_code;
323322 		conn->state = RXRPC_CONN_REMOTELY_ABORTED;
324
-		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED);
323
+		set_bit(RXRPC_CONN_DONT_REUSE, &conn->flags);
324
+		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED, sp->hdr.serial);
325325 		return -ECONNABORTED;
326326 
327327 	case RXRPC_PACKET_TYPE_CHALLENGE:
....@@ -341,7 +341,7 @@
341341 		if (ret < 0)
342342 			return ret;
343343 
344
-		spin_lock(&conn->channel_lock);
344
+		spin_lock(&conn->bundle->channel_lock);
345345 		spin_lock_bh(&conn->state_lock);
346346 
347347 		if (conn->state == RXRPC_CONN_SERVICE_CHALLENGING) {
....@@ -351,12 +351,12 @@
351351 				rxrpc_call_is_secure(
352352 					rcu_dereference_protected(
353353 						conn->channels[loop].call,
354
-						lockdep_is_held(&conn->channel_lock)));
354
+						lockdep_is_held(&conn->bundle->channel_lock)));
355355 		} else {
356356 			spin_unlock_bh(&conn->state_lock);
357357 		}
358358 
359
-		spin_unlock(&conn->channel_lock);
359
+		spin_unlock(&conn->bundle->channel_lock);
360360 		return 0;
361361 
362362 	default:
....@@ -377,21 +377,7 @@
377377 	_enter("{%d}", conn->debug_id);
378378 
379379 	ASSERT(conn->security_ix != 0);
380
-
381
-	if (!conn->params.key) {
382
-		_debug("set up security");
383
-		ret = rxrpc_init_server_conn_security(conn);
384
-		switch (ret) {
385
-		case 0:
386
-			break;
387
-		case -ENOENT:
388
-			abort_code = RX_CALL_DEAD;
389
-			goto abort;
390
-		default:
391
-			abort_code = RXKADNOAUTH;
392
-			goto abort;
393
-		}
394
-	}
380
+	ASSERT(conn->server_key);
395381 
396382 	if (conn->security->issue_challenge(conn) < 0) {
397383 		abort_code = RX_CALL_DEAD;
....@@ -411,7 +397,7 @@
411397 /*
412398  * Process delayed final ACKs that we haven't subsumed into a subsequent call.
413399  */
414
-static void rxrpc_process_delayed_final_acks(struct rxrpc_connection *conn)
400
+void rxrpc_process_delayed_final_acks(struct rxrpc_connection *conn, bool force)
415401 {
416402 	unsigned long j = jiffies, next_j;
417403 	unsigned int channel;
....@@ -430,7 +416,7 @@
430416 		smp_rmb(); /* vs rxrpc_disconnect_client_call */
431417 		ack_at = READ_ONCE(chan->final_ack_at);
432418 
433
-		if (time_before(j, ack_at)) {
419
+		if (time_before(j, ack_at) && !force) {
434420 			if (time_before(ack_at, next_j)) {
435421 				next_j = ack_at;
436422 				set = true;
....@@ -464,12 +450,12 @@
464450 
465451 	/* Process delayed ACKs whose time has come. */
466452 	if (conn->flags & RXRPC_CONN_FINAL_ACK_MASK)
467
-		rxrpc_process_delayed_final_acks(conn);
453
+		rxrpc_process_delayed_final_acks(conn, false);
468454 
469455 	/* go through the conn-level event packets, releasing the ref on this
470456 	 * connection that each one has when we've finished with it */
471457 	while ((skb = skb_dequeue(&conn->rx_queue))) {
472
-		rxrpc_see_skb(skb, rxrpc_skb_rx_seen);
458
+		rxrpc_see_skb(skb, rxrpc_skb_seen);
473459 		ret = rxrpc_process_event(conn, skb, &abort_code);
474460 		switch (ret) {
475461 		case -EPROTO:
....@@ -481,7 +467,7 @@
481467 			goto requeue_and_leave;
482468 		case -ECONNABORTED:
483469 		default:
484
-			rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
470
+			rxrpc_free_skb(skb, rxrpc_skb_freed);
485471 			break;
486472 		}
487473 	}
....@@ -495,7 +481,7 @@
495481 protocol_error:
496482 	if (rxrpc_abort_connection(conn, ret, abort_code) < 0)
497483 		goto requeue_and_leave;
498
-	rxrpc_free_skb(skb, rxrpc_skb_rx_freed);
484
+	rxrpc_free_skb(skb, rxrpc_skb_freed);
499485 	return;
500486 }
501487 
....@@ -515,4 +501,3 @@
515501 	_leave("");
516502 	return;
517503 }
518
-