1*5e3eaea3SApple OSS Distributions /*
2*5e3eaea3SApple OSS Distributions * Copyright (c) 2022 Apple Inc. All rights reserved.
3*5e3eaea3SApple OSS Distributions *
4*5e3eaea3SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*5e3eaea3SApple OSS Distributions *
6*5e3eaea3SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*5e3eaea3SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*5e3eaea3SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*5e3eaea3SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*5e3eaea3SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*5e3eaea3SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*5e3eaea3SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*5e3eaea3SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*5e3eaea3SApple OSS Distributions *
15*5e3eaea3SApple OSS Distributions * Please obtain a copy of the License at
16*5e3eaea3SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*5e3eaea3SApple OSS Distributions *
18*5e3eaea3SApple OSS Distributions * The Original Code and all software distributed under the License are
19*5e3eaea3SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*5e3eaea3SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*5e3eaea3SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*5e3eaea3SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*5e3eaea3SApple OSS Distributions * Please see the License for the specific language governing rights and
24*5e3eaea3SApple OSS Distributions * limitations under the License.
25*5e3eaea3SApple OSS Distributions *
26*5e3eaea3SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*5e3eaea3SApple OSS Distributions */
28*5e3eaea3SApple OSS Distributions
29*5e3eaea3SApple OSS Distributions #include <netinet/in_var.h>
30*5e3eaea3SApple OSS Distributions #include <netinet/inp_log.h>
31*5e3eaea3SApple OSS Distributions
32*5e3eaea3SApple OSS Distributions SYSCTL_NODE(_net_inet_ip, OID_AUTO, log, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
33*5e3eaea3SApple OSS Distributions "TCP/IP + UDP logs");
34*5e3eaea3SApple OSS Distributions
35*5e3eaea3SApple OSS Distributions #if (DEVELOPMENT || DEBUG)
36*5e3eaea3SApple OSS Distributions #define INP_LOG_PRIVACY_DEFAULT 0
37*5e3eaea3SApple OSS Distributions #else
38*5e3eaea3SApple OSS Distributions #define INP_LOG_PRIVACY_DEFAULT 1
39*5e3eaea3SApple OSS Distributions #endif /* (DEVELOPMENT || DEBUG) */
40*5e3eaea3SApple OSS Distributions
41*5e3eaea3SApple OSS Distributions int inp_log_privacy = INP_LOG_PRIVACY_DEFAULT;
42*5e3eaea3SApple OSS Distributions SYSCTL_INT(_net_inet_ip_log, OID_AUTO, privacy,
43*5e3eaea3SApple OSS Distributions CTLFLAG_RW | CTLFLAG_LOCKED, &inp_log_privacy, 0, "");
44*5e3eaea3SApple OSS Distributions
45*5e3eaea3SApple OSS Distributions void
inp_log_addresses(struct inpcb * inp,char * lbuf,socklen_t lbuflen,char * fbuf,socklen_t fbuflen)46*5e3eaea3SApple OSS Distributions inp_log_addresses(struct inpcb *inp, char *lbuf, socklen_t lbuflen, char *fbuf, socklen_t fbuflen)
47*5e3eaea3SApple OSS Distributions {
48*5e3eaea3SApple OSS Distributions /*
49*5e3eaea3SApple OSS Distributions * Ugly but %{private} does not work in the kernel version of os_log()
50*5e3eaea3SApple OSS Distributions */
51*5e3eaea3SApple OSS Distributions if (inp_log_privacy != 0) {
52*5e3eaea3SApple OSS Distributions if (inp->inp_vflag & INP_IPV6) {
53*5e3eaea3SApple OSS Distributions strlcpy(lbuf, "<IPv6-redacted>", lbuflen);
54*5e3eaea3SApple OSS Distributions strlcpy(fbuf, "<IPv6-redacted>", fbuflen);
55*5e3eaea3SApple OSS Distributions } else {
56*5e3eaea3SApple OSS Distributions strlcpy(lbuf, "<IPv4-redacted>", lbuflen);
57*5e3eaea3SApple OSS Distributions strlcpy(fbuf, "<IPv4-redacted>", fbuflen);
58*5e3eaea3SApple OSS Distributions }
59*5e3eaea3SApple OSS Distributions } else if (inp->inp_vflag & INP_IPV6) {
60*5e3eaea3SApple OSS Distributions struct in6_addr addr6;
61*5e3eaea3SApple OSS Distributions
62*5e3eaea3SApple OSS Distributions if (IN6_IS_ADDR_LINKLOCAL(&inp->in6p_laddr)) {
63*5e3eaea3SApple OSS Distributions addr6 = inp->in6p_laddr;
64*5e3eaea3SApple OSS Distributions addr6.s6_addr16[1] = 0;
65*5e3eaea3SApple OSS Distributions inet_ntop(AF_INET6, (void *)&addr6, lbuf, lbuflen);
66*5e3eaea3SApple OSS Distributions } else {
67*5e3eaea3SApple OSS Distributions inet_ntop(AF_INET6, (void *)&inp->in6p_laddr, lbuf, lbuflen);
68*5e3eaea3SApple OSS Distributions }
69*5e3eaea3SApple OSS Distributions
70*5e3eaea3SApple OSS Distributions if (IN6_IS_ADDR_LINKLOCAL(&inp->in6p_faddr)) {
71*5e3eaea3SApple OSS Distributions addr6 = inp->in6p_faddr;
72*5e3eaea3SApple OSS Distributions addr6.s6_addr16[1] = 0;
73*5e3eaea3SApple OSS Distributions inet_ntop(AF_INET6, (void *)&addr6, fbuf, fbuflen);
74*5e3eaea3SApple OSS Distributions } else {
75*5e3eaea3SApple OSS Distributions inet_ntop(AF_INET6, (void *)&inp->in6p_faddr, fbuf, fbuflen);
76*5e3eaea3SApple OSS Distributions }
77*5e3eaea3SApple OSS Distributions } else {
78*5e3eaea3SApple OSS Distributions inet_ntop(AF_INET, (void *)&inp->inp_laddr.s_addr, lbuf, lbuflen);
79*5e3eaea3SApple OSS Distributions inet_ntop(AF_INET, (void *)&inp->inp_faddr.s_addr, fbuf, fbuflen);
80*5e3eaea3SApple OSS Distributions }
81*5e3eaea3SApple OSS Distributions }
82