add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/net/l2tp/l2tp_ip6.c
..
..
@@ -1,12 +1,7 @@
1
-/*
2
- * L2TPv3 IP encapsulation support for IPv6
1
+// SPDX-License-Identifier: GPL-2.0-or-later
2
+/* L2TPv3 IP encapsulation support for IPv6
3
3
  *
4
4
  * Copyright (c) 2012 Katalix Systems Ltd
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.
10
5
  */
11
6
 
12
7
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
..
..
@@ -42,7 +37,8 @@
42
37
 	u32			peer_conn_id;
43
38
 
44
39
 	/* ipv6_pinfo has to be the last member of l2tp_ip6_sock, see
45
-	   inet6_sk_generic */
40
+	 * inet6_sk_generic
41
+	 */
46
42
 	struct ipv6_pinfo	inet6;
47
43
 };
48
44
 
..
..
@@ -135,14 +131,14 @@
135
131
 	struct l2tp_session *session;
136
132
 	struct l2tp_tunnel *tunnel = NULL;
137
133
 	struct ipv6hdr *iph;
138
-	int length;
139
134
 
140
135
 	if (!pskb_may_pull(skb, 4))
141
136
 		goto discard;
142
137
 
143
138
 	/* Point to L2TP header */
144
-	optr = ptr = skb->data;
145
-	session_id = ntohl(*((__be32 *) ptr));
139
+	optr = skb->data;
140
+	ptr = skb->data;
141
+	session_id = ntohl(*((__be32 *)ptr));
146
142
 	ptr += 4;
147
143
 
148
144
 	/* RFC3931: L2TP/IP packets have the first 4 bytes containing
..
..
@@ -163,19 +159,6 @@
163
159
 	if (!tunnel)
164
160
 		goto discard_sess;
165
161
 
166
-	/* Trace packet contents, if enabled */
167
-	if (tunnel->debug & L2TP_MSG_DATA) {
168
-		length = min(32u, skb->len);
169
-		if (!pskb_may_pull(skb, length))
170
-			goto discard_sess;
171
-
172
-		/* Point to L2TP header */
173
-		optr = ptr = skb->data;
174
-		ptr += 4;
175
-		pr_debug("%s: ip recv\n", tunnel->name);
176
-		print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
177
-	}
178
-
179
162
 	if (l2tp_v3_ensure_opt_in_linear(session, skb, &ptr, &optr))
180
163
 		goto discard_sess;
181
164
 
..
..
@@ -192,7 +175,7 @@
192
175
 	if ((skb->data[0] & 0xc0) != 0xc0)
193
176
 		goto discard;
194
177
 
195
-	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
178
+	tunnel_id = ntohl(*(__be32 *)&skb->data[4]);
196
179
 	iph = ipv6_hdr(skb);
197
180
 
198
181
 	read_lock_bh(&l2tp_ip6_lock);
..
..
@@ -208,7 +191,7 @@
208
191
 	if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb))
209
192
 		goto discard_put;
210
193
 
211
-	nf_reset(skb);
194
+	nf_reset_ct(skb);
212
195
 
213
196
 	return sk_receive_skb(sk, skb, 1);
214
197
 
..
..
@@ -264,7 +247,7 @@
264
247
 
265
248
 static void l2tp_ip6_destroy_sock(struct sock *sk)
266
249
 {
267
-	struct l2tp_tunnel *tunnel = sk->sk_user_data;
250
+	struct l2tp_tunnel *tunnel = l2tp_sk_to_tunnel(sk);
268
251
 
269
252
 	lock_sock(sk);
270
253
 	ip6_flush_pending_frames(sk);
..
..
@@ -272,15 +255,13 @@
272
255
 
273
256
 	if (tunnel)
274
257
 		l2tp_tunnel_delete(tunnel);
275
-
276
-	inet6_destroy_sock(sk);
277
258
 }
278
259
 
279
260
 static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
280
261
 {
281
262
 	struct inet_sock *inet = inet_sk(sk);
282
263
 	struct ipv6_pinfo *np = inet6_sk(sk);
283
-	struct sockaddr_l2tpip6 *addr = (struct sockaddr_l2tpip6 *) uaddr;
264
+	struct sockaddr_l2tpip6 *addr = (struct sockaddr_l2tpip6 *)uaddr;
284
265
 	struct net *net = sock_net(sk);
285
266
 	__be32 v4addr = 0;
286
267
 	int bound_dev_if;
..
..
@@ -379,8 +360,8 @@
379
360
 static int l2tp_ip6_connect(struct sock *sk, struct sockaddr *uaddr,
380
361
 			    int addr_len)
381
362
 {
382
-	struct sockaddr_l2tpip6 *lsa = (struct sockaddr_l2tpip6 *) uaddr;
383
-	struct sockaddr_in6	*usin = (struct sockaddr_in6 *) uaddr;
363
+	struct sockaddr_l2tpip6 *lsa = (struct sockaddr_l2tpip6 *)uaddr;
364
+	struct sockaddr_in6	*usin = (struct sockaddr_in6 *)uaddr;
384
365
 	struct in6_addr	*daddr;
385
366
 	int	addr_type;
386
367
 	int rc;
..
..
@@ -490,7 +471,7 @@
490
471
 	int err = 0;
491
472
 
492
473
 	skb = skb_peek(&sk->sk_write_queue);
493
-	if (skb == NULL)
474
+	if (!skb)
494
475
 		goto out;
495
476
 
496
477
 	transhdr = (__be32 *)skb_transport_header(skb);
..
..
@@ -519,22 +500,20 @@
519
500
 	struct ipcm6_cookie ipc6;
520
501
 	int addr_len = msg->msg_namelen;
521
502
 	int transhdrlen = 4; /* zero session-id */
522
-	int ulen = len + transhdrlen;
503
+	int ulen;
523
504
 	int err;
524
505
 
525
506
 	/* Rough check on arithmetic overflow,
526
-	   better check is made in ip6_append_data().
507
+	 * better check is made in ip6_append_data().
527
508
 	 */
528
-	if (len > INT_MAX)
509
+	if (len > INT_MAX - transhdrlen)
529
510
 		return -EMSGSIZE;
530
511
 
531
512
 	/* Mirror BSD error message compatibility */
532
513
 	if (msg->msg_flags & MSG_OOB)
533
514
 		return -EOPNOTSUPP;
534
515
 
535
-	/*
536
-	 *	Get and verify the address.
537
-	 */
516
+	/* Get and verify the address */
538
517
 	memset(&fl6, 0, sizeof(fl6));
539
518
 
540
519
 	fl6.flowi6_mark = sk->sk_mark;
..
..
@@ -552,15 +531,14 @@
552
531
 		daddr = &lsa->l2tp_addr;
553
532
 		if (np->sndflow) {
554
533
 			fl6.flowlabel = lsa->l2tp_flowinfo & IPV6_FLOWINFO_MASK;
555
-			if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) {
534
+			if (fl6.flowlabel & IPV6_FLOWLABEL_MASK) {
556
535
 				flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
557
-				if (flowlabel == NULL)
536
+				if (IS_ERR(flowlabel))
558
537
 					return -EINVAL;
559
538
 			}
560
539
 		}
561
540
 
562
-		/*
563
-		 * Otherwise it will be difficult to maintain
541
+		/* Otherwise it will be difficult to maintain
564
542
 		 * sk->sk_dst_cache.
565
543
 		 */
566
544
 		if (sk->sk_state == TCP_ESTABLISHED &&
..
..
@@ -595,10 +573,10 @@
595
573
 		}
596
574
 		if ((fl6.flowlabel & IPV6_FLOWLABEL_MASK) && !flowlabel) {
597
575
 			flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
598
-			if (flowlabel == NULL)
576
+			if (IS_ERR(flowlabel))
599
577
 				return -EINVAL;
600
578
 		}
601
-		if (!(opt->opt_nflen|opt->opt_flen))
579
+		if (!(opt->opt_nflen | opt->opt_flen))
602
580
 			opt = NULL;
603
581
 	}
604
582
 
..
..
@@ -626,7 +604,7 @@
626
604
 	else if (!fl6.flowi6_oif)
627
605
 		fl6.flowi6_oif = np->ucast_oif;
628
606
 
629
-	security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
607
+	security_sk_classify_flow(sk, flowi6_to_flowi_common(&fl6));
630
608
 
631
609
 	if (ipc6.tclass < 0)
632
610
 		ipc6.tclass = np->tclass;
..
..
@@ -650,6 +628,7 @@
650
628
 
651
629
 back_from_confirm:
652
630
 	lock_sock(sk);
631
+	ulen = len + skb_queue_empty(&sk->sk_write_queue) ? transhdrlen : 0;
653
632
 	err = ip6_append_data(sk, ip_generic_getfrag, msg,
654
633
 			      ulen, transhdrlen, &ipc6,
655
634
 			      &fl6, (struct rt6_info *)dst,
..
..
@@ -749,10 +728,6 @@
749
728
 	.hash		   = l2tp_ip6_hash,
750
729
 	.unhash		   = l2tp_ip6_unhash,
751
730
 	.obj_size	   = sizeof(struct l2tp_ip6_sock),
752
-#ifdef CONFIG_COMPAT
753
-	.compat_setsockopt = compat_ipv6_setsockopt,
754
-	.compat_getsockopt = compat_ipv6_getsockopt,
755
-#endif
756
731
 };
757
732
 
758
733
 static const struct proto_ops l2tp_ip6_ops = {
..
..
@@ -766,6 +741,7 @@
766
741
 	.getname	   = l2tp_ip6_getname,
767
742
 	.poll		   = datagram_poll,
768
743
 	.ioctl		   = inet6_ioctl,
744
+	.gettstamp	   = sock_gettstamp,
769
745
 	.listen		   = sock_no_listen,
770
746
 	.shutdown	   = inet_shutdown,
771
747
 	.setsockopt	   = sock_common_setsockopt,
..
..
@@ -775,8 +751,7 @@
775
751
 	.mmap		   = sock_no_mmap,
776
752
 	.sendpage	   = sock_no_sendpage,
777
753
 #ifdef CONFIG_COMPAT
778
-	.compat_setsockopt = compat_sock_common_setsockopt,
779
-	.compat_getsockopt = compat_sock_common_getsockopt,
754
+	.compat_ioctl	   = inet6_compat_ioctl,
780
755
 #endif
781
756
 };
782
757