Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106

1 files changed, 316 insertions, 0 deletions

diff --git a/network_cmds/ifconfig.tproj/af_inet.c b/network_cmds/ifconfig.tproj/af_inet.c
new file mode 100644
index 0000000..621bd16
--- /dev/null
+++ b/network_cmds/ifconfig.tproj/af_inet.c
@@ -0,0 +1,316 @@
+/*
+ * Copyright (c) 2009-2011, 2020 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <net/if.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <ifaddrs.h>
+
+#include <netinet/in.h>
+#include <net/if_var.h>		/* for struct ifaddr */
+#include <netinet/in_var.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include "ifconfig.h"
+
+static struct ifaliasreq in_addreq;
+static struct ifreq in_ridreq;
+
+static void
+in_status(int s __unused, const struct ifaddrs *ifa)
+{
+	struct sockaddr_in *sin, null_sin;
+	
+	memset(&null_sin, 0, sizeof(null_sin));
+
+	sin = (struct sockaddr_in *)ifa->ifa_addr;
+	if (sin == NULL)
+		return;
+
+	printf("\tinet %s ", inet_ntoa(sin->sin_addr));
+
+	if (ifa->ifa_flags & IFF_POINTOPOINT) {
+		sin = (struct sockaddr_in *)ifa->ifa_dstaddr;
+		if (sin == NULL)
+			sin = &null_sin;
+		printf("--> %s ", inet_ntoa(sin->sin_addr));
+	}
+
+	sin = (struct sockaddr_in *)ifa->ifa_netmask;
+	if (sin == NULL)
+		sin = &null_sin;
+	printf("netmask 0x%lx ", (unsigned long)ntohl(sin->sin_addr.s_addr));
+
+	if (ifa->ifa_flags & IFF_BROADCAST) {
+		sin = (struct sockaddr_in *)ifa->ifa_broadaddr;
+		if (sin != NULL && sin->sin_addr.s_addr != 0)
+			printf("broadcast %s", inet_ntoa(sin->sin_addr));
+	}
+	putchar('\n');
+}
+
+#define SIN(x) ((struct sockaddr_in *) &(x))
+static struct sockaddr_in *sintab[] = {
+	SIN(in_ridreq.ifr_addr), SIN(in_addreq.ifra_addr),
+	SIN(in_addreq.ifra_mask), SIN(in_addreq.ifra_broadaddr)
+};
+
+static void
+in_getaddr(const char *s, int which)
+{
+#ifndef MIN
+#define	MIN(a,b)	((a)<(b)?(a):(b))
+#endif /* MIN */
+	struct sockaddr_in *sin = sintab[which];
+	struct hostent *hp;
+	struct netent *np;
+
+	sin->sin_len = sizeof(*sin);
+	if (which != MASK)
+		sin->sin_family = AF_INET;
+
+	if (which == ADDR) {
+		char *p = NULL;
+
+		if((p = strrchr(s, '/')) != NULL) {
+			/* address is `name/masklen' */
+			int masklen;
+			int ret;
+			struct sockaddr_in *min = sintab[MASK];
+			*p = '\0';
+			ret = sscanf(p+1, "%u", &masklen);
+			if(ret != 1 || (masklen < 0 || masklen > 32)) {
+				*p = '/';
+				errx(1, "%s: bad value", s);
+			}
+			min->sin_len = sizeof(*min);
+			min->sin_addr.s_addr = htonl(~((1LL << (32 - masklen)) - 1) & 
+				              0xffffffff);
+		}
+	}
+
+	if (inet_aton(s, &sin->sin_addr))
+		return;
+	if ((hp = gethostbyname(s)) != 0)
+		bcopy(hp->h_addr, (char *)&sin->sin_addr, 
+		    MIN(hp->h_length, sizeof(sin->sin_addr)));
+	else if ((np = getnetbyname(s)) != 0)
+		sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
+	else
+		errx(1, "%s: bad value", s);
+#undef MIN
+}
+
+static void
+in_status_tunnel(int s)
+{
+	char src[NI_MAXHOST];
+	char dst[NI_MAXHOST];
+	struct ifreq ifr;
+	const struct sockaddr *sa = (const struct sockaddr *) &ifr.ifr_addr;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
+
+	if (ioctl(s, SIOCGIFPSRCADDR, (caddr_t)&ifr) < 0)
+		return;
+	if (sa->sa_family != AF_INET)
+		return;
+	if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0, NI_NUMERICHOST) != 0)
+		src[0] = '\0';
+
+	if (ioctl(s, SIOCGIFPDSTADDR, (caddr_t)&ifr) < 0)
+		return;
+	if (sa->sa_family != AF_INET)
+		return;
+	if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0, NI_NUMERICHOST) != 0)
+		dst[0] = '\0';
+
+	printf("\ttunnel inet %s --> %s\n", src, dst);
+}
+
+static void
+in_set_tunnel(int s, struct addrinfo *srcres, struct addrinfo *dstres)
+{
+	struct ifaliasreq addreq;
+
+	memset(&addreq, 0, sizeof(addreq));
+	strlcpy(addreq.ifra_name, name, sizeof(addreq.ifra_name));
+	memcpy(&addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len);
+	memcpy(&addreq.ifra_dstaddr, dstres->ai_addr, dstres->ai_addr->sa_len);
+
+	if (ioctl(s, SIOCSIFPHYADDR, &addreq) < 0)
+		warn("SIOCSIFPHYADDR");
+}
+
+static void
+in_set_router(int s, int enable)
+{
+	struct ifreq ifr;
+
+	bzero(&ifr, sizeof (ifr));
+	strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
+	ifr.ifr_intval = enable;
+
+	if (ioctl(s, SIOCSETROUTERMODE, &ifr) < 0)
+		warn("SIOCSETROUTERMODE");
+}
+
+static int
+routermode_from_string(char * str, int *mode_p)
+{
+	int	success = 1;
+
+	if (strcasecmp(str, "enabled") == 0) {
+		*mode_p = 1;
+	} else if (strcasecmp(str, "disabled") == 0) {
+		*mode_p = 0;
+	} else {
+		success = 0;
+	}
+	return (success);
+}
+
+static const char *
+routermode_string(int mode)
+{
+	const char *	str;
+
+	switch (mode) {
+	case 0:
+		str = "disabled";
+		break;
+	case 1:
+		str = "enabled";
+		break;
+	default:
+		str = "<unknown>";
+		break;
+	}
+	return str;
+}
+
+static int
+in_routermode(int s, int argc, char *const*argv)
+{
+	struct ifreq 	ifr;
+	int 		ret;
+
+	bzero(&ifr, sizeof (ifr));
+	strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
+	if (argc == 0) {
+		ret = 0;
+#ifndef SIOCGETROUTERMODE
+#define SIOCGETROUTERMODE _IOWR('i', 209, struct ifreq)   /* get IPv4 router mode state */
+#endif /* SIOCGETROUTERMODE */
+		if (ioctl(s, SIOCGETROUTERMODE, &ifr) < 0) {
+			if (argv != NULL) {
+				warn("SIOCGETROUTERMODE");
+			}
+		} else {
+			/* argv is NULL if we're called from status() */
+			printf("%s%s\n",
+			       (argv == NULL) ? "\troutermode4: " : "",
+			       routermode_string(ifr.ifr_intval));
+		}
+		ret = 0;
+	} else {
+		int mode;
+
+		if (routermode_from_string(argv[0], &mode) == 0) {
+			errx(EXIT_FAILURE,
+			     "mode '%s' invalid, must be one of "
+			     "disabled or enabled",
+			     argv[0]);
+		}
+		ifr.ifr_intval = mode;
+		if (ioctl(s, SIOCSETROUTERMODE, &ifr) < 0) {
+			warn("SIOCSETROUTERMODE");
+		}
+		ret = 1;
+	}
+	return ret;
+}
+
+static struct afswtch af_inet = {
+	.af_name	= "inet",
+	.af_af		= AF_INET,
+	.af_status	= in_status,
+	.af_getaddr	= in_getaddr,
+	.af_status_tunnel = in_status_tunnel,
+	.af_settunnel	= in_set_tunnel,
+	.af_setrouter	= in_set_router,
+	.af_routermode	= in_routermode,
+	.af_difaddr	= SIOCDIFADDR,
+	.af_aifaddr	= SIOCAIFADDR,
+	.af_ridreq	= &in_ridreq,
+	.af_addreq	= &in_addreq,
+};
+
+static __constructor void
+inet_ctor(void)
+{
+	af_register(&af_inet);
+}