修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/net/x25/af_x25.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  *	X.25 Packet Layer release 002
3
4
  *
..
..
@@ -6,12 +7,6 @@
6
7
  *	screw up. It might even work.
7
8
  *
8
9
  *	This code REQUIRES 2.1.15 or higher
9
- *
10
- *	This module:
11
- *		This module is free software; you can redistribute it and/or
12
- *		modify it under the terms of the GNU General Public License
13
- *		as published by the Free Software Foundation; either version
14
- *		2 of the License, or (at your option) any later version.
15
10
  *
16
11
  *	History
17
12
  *	X.25 001	Jonathan Naylor	Started coding.
..
..
@@ -436,7 +431,7 @@
436
431
  */
437
432
 
438
433
 static int x25_setsockopt(struct socket *sock, int level, int optname,
439
-			  char __user *optval, unsigned int optlen)
434
+			  sockptr_t optval, unsigned int optlen)
440
435
 {
441
436
 	int opt;
442
437
 	struct sock *sk = sock->sk;
..
..
@@ -450,7 +445,7 @@
450
445
 		goto out;
451
446
 
452
447
 	rc = -EFAULT;
453
-	if (get_user(opt, (int __user *)optval))
448
+	if (copy_from_sockptr(&opt, optval, sizeof(int)))
454
449
 		goto out;
455
450
 
456
451
 	if (opt)
..
..
@@ -497,6 +492,12 @@
497
492
 	int rc = -EOPNOTSUPP;
498
493
 
499
494
 	lock_sock(sk);
495
+	if (sock->state != SS_UNCONNECTED) {
496
+		rc = -EINVAL;
497
+		release_sock(sk);
498
+		return rc;
499
+	}
500
+
500
501
 	if (sk->sk_state != TCP_LISTEN) {
501
502
 		memset(&x25_sk(sk)->dest_addr, 0, X25_ADDR_LEN);
502
503
 		sk->sk_max_ack_backlog = backlog;
..
..
@@ -664,6 +665,12 @@
664
665
 			sock_set_flag(sk, SOCK_DEAD);
665
666
 			sock_set_flag(sk, SOCK_DESTROY);
666
667
 			break;
668
+
669
+		case X25_STATE_5:
670
+			x25_write_internal(sk, X25_CLEAR_REQUEST);
671
+			x25_disconnect(sk, 0, 0, 0);
672
+			__x25_destroy_socket(sk);
673
+			goto out;
667
674
 	}
668
675
 
669
676
 	sock_orphan(sk);
..
..
@@ -902,7 +909,7 @@
902
909
 	/* Now attach up the new socket */
903
910
 	skb->sk = NULL;
904
911
 	kfree_skb(skb);
905
-	sk->sk_ack_backlog--;
912
+	sk_acceptq_removed(sk);
906
913
 	newsock->state = SS_CONNECTED;
907
914
 	rc = 0;
908
915
 out2:
..
..
@@ -1066,6 +1073,8 @@
1066
1073
 	if (test_bit(X25_ACCPT_APPRV_FLAG, &makex25->flags)) {
1067
1074
 		x25_write_internal(make, X25_CALL_ACCEPTED);
1068
1075
 		makex25->state = X25_STATE_3;
1076
+	} else {
1077
+		makex25->state = X25_STATE_5;
1069
1078
 	}
1070
1079
 
1071
1080
 	/*
..
..
@@ -1074,7 +1083,7 @@
1074
1083
 	skb_copy_from_linear_data(skb, makex25->calluserdata.cuddata, skb->len);
1075
1084
 	makex25->calluserdata.cudlength = skb->len;
1076
1085
 
1077
-	sk->sk_ack_backlog++;
1086
+	sk_acceptq_added(sk);
1078
1087
 
1079
1088
 	x25_insert_socket(make);
1080
1089
 
..
..
@@ -1405,18 +1414,6 @@
1405
1414
 		break;
1406
1415
 	}
1407
1416
 
1408
-	case SIOCGSTAMP:
1409
-		rc = -EINVAL;
1410
-		if (sk)
1411
-			rc = sock_get_timestamp(sk,
1412
-						(struct timeval __user *)argp);
1413
-		break;
1414
-	case SIOCGSTAMPNS:
1415
-		rc = -EINVAL;
1416
-		if (sk)
1417
-			rc = sock_get_timestampns(sk,
1418
-					(struct timespec __user *)argp);
1419
-		break;
1420
1417
 	case SIOCGIFADDR:
1421
1418
 	case SIOCSIFADDR:
1422
1419
 	case SIOCGIFDSTADDR:
..
..
@@ -1688,26 +1685,12 @@
1688
1685
 				unsigned long arg)
1689
1686
 {
1690
1687
 	void __user *argp = compat_ptr(arg);
1691
-	struct sock *sk = sock->sk;
1692
-
1693
1688
 	int rc = -ENOIOCTLCMD;
1694
1689
 
1695
1690
 	switch(cmd) {
1696
1691
 	case TIOCOUTQ:
1697
1692
 	case TIOCINQ:
1698
1693
 		rc = x25_ioctl(sock, cmd, (unsigned long)argp);
1699
-		break;
1700
-	case SIOCGSTAMP:
1701
-		rc = -EINVAL;
1702
-		if (sk)
1703
-			rc = compat_sock_get_timestamp(sk,
1704
-					(struct timeval __user*)argp);
1705
-		break;
1706
-	case SIOCGSTAMPNS:
1707
-		rc = -EINVAL;
1708
-		if (sk)
1709
-			rc = compat_sock_get_timestampns(sk,
1710
-					(struct timespec __user*)argp);
1711
1694
 		break;
1712
1695
 	case SIOCGIFADDR:
1713
1696
 	case SIOCSIFADDR:
..
..
@@ -1772,6 +1755,7 @@
1772
1755
 #ifdef CONFIG_COMPAT
1773
1756
 	.compat_ioctl = compat_x25_ioctl,
1774
1757
 #endif
1758
+	.gettstamp =	sock_gettstamp,
1775
1759
 	.listen =	x25_listen,
1776
1760
 	.shutdown =	sock_no_shutdown,
1777
1761
 	.setsockopt =	x25_setsockopt,
..
..
@@ -1797,10 +1781,15 @@
1797
1781
 
1798
1782
 	write_lock_bh(&x25_list_lock);
1799
1783
 
1800
-	sk_for_each(s, &x25_list)
1801
-		if (x25_sk(s)->neighbour == nb)
1784
+	sk_for_each(s, &x25_list) {
1785
+		if (x25_sk(s)->neighbour == nb) {
1786
+			write_unlock_bh(&x25_list_lock);
1787
+			lock_sock(s);
1802
1788
 			x25_disconnect(s, ENETUNREACH, 0, 0);
1803
-
1789
+			release_sock(s);
1790
+			write_lock_bh(&x25_list_lock);
1791
+		}
1792
+	}
1804
1793
 	write_unlock_bh(&x25_list_lock);
1805
1794
 
1806
1795
 	/* Remove any related forwards */