1 | /* |
2 | * Copyright (c) 2022 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | #include <netinet/in_var.h> |
30 | #include <netinet/inp_log.h> |
31 | |
32 | SYSCTL_NODE(_net_inet_ip, OID_AUTO, log, CTLFLAG_RW | CTLFLAG_LOCKED, 0, |
33 | "TCP/IP + UDP logs" ); |
34 | |
35 | #if (DEVELOPMENT || DEBUG) |
36 | #define INP_LOG_PRIVACY_DEFAULT 0 |
37 | #else |
38 | #define INP_LOG_PRIVACY_DEFAULT 1 |
39 | #endif /* (DEVELOPMENT || DEBUG) */ |
40 | |
41 | int inp_log_privacy = INP_LOG_PRIVACY_DEFAULT; |
42 | SYSCTL_INT(_net_inet_ip_log, OID_AUTO, privacy, |
43 | CTLFLAG_RW | CTLFLAG_LOCKED, &inp_log_privacy, 0, "" ); |
44 | |
45 | void |
46 | inp_log_addresses(struct inpcb *inp, char *lbuf, socklen_t lbuflen, char *fbuf, socklen_t fbuflen) |
47 | { |
48 | /* |
49 | * Ugly but %{private} does not work in the kernel version of os_log() |
50 | */ |
51 | if (inp_log_privacy != 0) { |
52 | if (inp->inp_vflag & INP_IPV6) { |
53 | strlcpy(dst: lbuf, src: "<IPv6-redacted>" , n: lbuflen); |
54 | strlcpy(dst: fbuf, src: "<IPv6-redacted>" , n: fbuflen); |
55 | } else { |
56 | strlcpy(dst: lbuf, src: "<IPv4-redacted>" , n: lbuflen); |
57 | strlcpy(dst: fbuf, src: "<IPv4-redacted>" , n: fbuflen); |
58 | } |
59 | } else if (inp->inp_vflag & INP_IPV6) { |
60 | struct in6_addr addr6; |
61 | |
62 | if (IN6_IS_ADDR_LINKLOCAL(&inp->in6p_laddr)) { |
63 | addr6 = inp->in6p_laddr; |
64 | addr6.s6_addr16[1] = 0; |
65 | inet_ntop(AF_INET6, (void *)&addr6, lbuf, lbuflen); |
66 | } else { |
67 | inet_ntop(AF_INET6, (void *)&inp->in6p_laddr, lbuf, lbuflen); |
68 | } |
69 | |
70 | if (IN6_IS_ADDR_LINKLOCAL(&inp->in6p_faddr)) { |
71 | addr6 = inp->in6p_faddr; |
72 | addr6.s6_addr16[1] = 0; |
73 | inet_ntop(AF_INET6, (void *)&addr6, fbuf, fbuflen); |
74 | } else { |
75 | inet_ntop(AF_INET6, (void *)&inp->in6p_faddr, fbuf, fbuflen); |
76 | } |
77 | } else { |
78 | inet_ntop(AF_INET, (void *)&inp->inp_laddr.s_addr, lbuf, lbuflen); |
79 | inet_ntop(AF_INET, (void *)&inp->inp_faddr.s_addr, fbuf, fbuflen); |
80 | } |
81 | } |
82 | |