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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/mopd/moptrace/../common/device.c	Lines:	0	77	0.0 %
Date:	2017-11-13	Branches:	0	45	0.0 %


/*	$OpenBSD: device.c,v 1.17 2017/01/21 08:33:51 krw Exp $ */

/*
 * Copyright (c) 1993-95 Mats O Jansson.  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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "os.h"
#include "common.h"
#include "device.h"
#include "mopdef.h"
#include "pf.h"

struct if_info	*iflist;		/* Interface List		*/

#ifdef	DEV_NEW_CONF
/*
 * Return ethernet address for interface
 */

void
deviceEthAddr(char *ifname, u_char *eaddr)
{
	struct sockaddr_dl	*sdl;
	struct ifaddrs		*ifap, *ifa;

	if (getifaddrs(&ifap) != 0) {
		syslog(LOG_ERR, "deviceEthAddr: getifaddrs: %m");
		exit(1);
	}

	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
		sdl = (struct sockaddr_dl *)ifa->ifa_addr;
		if (sdl->sdl_family != AF_LINK || sdl->sdl_type != IFT_ETHER ||
		    sdl->sdl_alen != 6)
			continue;
		if (!strcmp(ifa->ifa_name, ifname)) {
			bcopy(LLADDR(sdl), eaddr, 6);
			freeifaddrs(ifap);
			return;
		}
	}

	syslog(LOG_ERR, "deviceEthAddr: Never saw interface `%s'!", ifname);
	exit(1);
}
#endif	/* DEV_NEW_CONF */

void
deviceOpen(char *ifname, u_short proto, int trans)
{
	struct if_info	*p, tmp;

	strncpy(tmp.if_name, ifname, sizeof(tmp.if_name) - 1);
	tmp.if_name[sizeof(tmp.if_name) - 1] = 0;
	tmp.iopen = pfInit;

	switch (proto) {
	case MOP_K_PROTO_RC:
		tmp.read = mopReadRC;
		tmp.fd   = mopOpenRC(&tmp, trans);
		break;
	case MOP_K_PROTO_DL:
		tmp.read = mopReadDL;
		tmp.fd   = mopOpenDL(&tmp, trans);
		break;
	default:
		break;
	}

	if (tmp.fd != -1) {
		p = malloc(sizeof(*p));
		if (p == 0) {
			syslog(LOG_ERR, "deviceOpen: malloc: %m");
			exit(1);
		}

		p->next = iflist;
		iflist = p;

		strlcpy(p->if_name, tmp.if_name, IFNAME_SIZE);
		p->iopen   = tmp.iopen;
		p->write   = pfWrite;
		p->read    = tmp.read;
		bzero(p->eaddr, sizeof(p->eaddr));
		p->fd      = tmp.fd;

#ifdef	DEV_NEW_CONF
		deviceEthAddr(p->if_name, &p->eaddr[0]);
#else
		p->eaddr[0] = tmp.eaddr[0];
		p->eaddr[1] = tmp.eaddr[1];
		p->eaddr[2] = tmp.eaddr[2];
		p->eaddr[3] = tmp.eaddr[3];
		p->eaddr[4] = tmp.eaddr[4];
		p->eaddr[5] = tmp.eaddr[5];
#endif	/* DEV_NEW_CONF */

#ifdef LINUX2_PF
		{
			int s;

			s = socket(AF_INET, SOCK_DGRAM, 0);
			pfEthAddr(s, p->if_name, &p->eaddr[0]);
			close(s);
		}
#endif
	}
}

void
deviceInitOne(char *ifname)
{
	char	interface[IFNAME_SIZE];
	struct if_info *p;
	int	trans;
#ifdef _AIX
	char	dev[IFNAME_SIZE];
	int	unit,j;

	unit = 0;
	for (j = 0; j < strlen(ifname); j++) {
		if (isalpha((unsigned char)ifname[j]))
			dev[j] = ifname[j];
		else
			if (isdigit((unsigned char)ifname[j])) {
				unit = unit * 10 + ifname[j] - '0';
				dev[j] = '\0';
			}
	}

	if ((strlen(dev) == 2) && (dev[0] == 'e') &&
	    ((dev[1] == 'n') || (dev[1] == 't')))
		snprintf(interface, sizeof(interface), "ent%d\0", unit);
	else
		snprintf(interface, sizeof(interface), "%s%d\0", dev, unit);
#else
	snprintf(interface, sizeof(interface), "%s", ifname);
#endif /* _AIX */

	/* Ok, init it just once */
	p = iflist;
	for (p = iflist; p; p = p->next)
		if (strcmp(p->if_name, interface) == 0)
			return;

	syslog(LOG_INFO, "Initialized %s", interface);

	/* Ok, get transport information */
	trans = pfTrans(interface);

#ifndef NORC
	/* Start with MOP Remote Console */
	switch (trans) {
	case TRANS_ETHER:
		deviceOpen(interface, MOP_K_PROTO_RC, TRANS_ETHER);
		break;
	case TRANS_8023:
		deviceOpen(interface, MOP_K_PROTO_RC, TRANS_8023);
		break;
	case TRANS_ETHER + TRANS_8023:
		deviceOpen(interface, MOP_K_PROTO_RC, TRANS_ETHER);
		deviceOpen(interface, MOP_K_PROTO_RC, TRANS_8023);
		break;
	case TRANS_ETHER + TRANS_8023 + TRANS_AND:
		deviceOpen(interface, MOP_K_PROTO_RC, TRANS_ETHER + TRANS_8023);
		break;
	}
#endif

#ifndef NODL
	/* and next MOP Dump/Load */
	switch (trans) {
	case TRANS_ETHER:
		deviceOpen(interface, MOP_K_PROTO_DL, TRANS_ETHER);
		break;
	case TRANS_8023:
		deviceOpen(interface, MOP_K_PROTO_DL, TRANS_8023);
		break;
	case TRANS_ETHER + TRANS_8023:
		deviceOpen(interface, MOP_K_PROTO_DL, TRANS_ETHER);
		deviceOpen(interface, MOP_K_PROTO_DL, TRANS_8023);
		break;
	case TRANS_ETHER + TRANS_8023 + TRANS_AND:
		deviceOpen(interface, MOP_K_PROTO_DL, TRANS_ETHER + TRANS_8023);
		break;
	}
#endif

}

/*
 * Initialize all "candidate" interfaces that are in the system
 * configuration list.  A "candidate" is up, not loopback and not
 * point to point.
 */
void
deviceInitAll()
{
#ifdef DEV_NEW_CONF
	struct sockaddr_dl	*sdl;
	struct ifaddrs		*ifap, *ifa;

	if (getifaddrs(&ifap) != 0) {
		syslog(LOG_ERR, "deviceInitAll: getifaddrs: %m");
		exit(1);
	}

	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
		sdl = (struct sockaddr_dl *)ifa->ifa_addr;
		if (sdl->sdl_family != AF_LINK || sdl->sdl_type != IFT_ETHER ||
		    sdl->sdl_alen != 6)
			continue;
		if ((ifa->ifa_flags &
		    (IFF_UP | IFF_LOOPBACK | IFF_POINTOPOINT)) != IFF_UP)
			continue;
		deviceInitOne(ifa->ifa_name);
	}
	freeifaddrs(ifap);
#else
	struct ifaddrs	*ifap, *ifa;

	if (getifaddrs(&ifap) != 0) {
		syslog(LOG_ERR, "deviceInitAll: getifaddrs: %m");
		exit(1);
	}

	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
		if (/*(ifa->ifa_flags & IFF_UP) == 0 ||*/
		    ifa->ifa_flags & IFF_LOOPBACK ||
		    ifa->ifa_flags & IFF_POINTOPOINT)
			continue;
		deviceInitOne(ifa->ifa_name);
	}
	freeifaddrs(ifap);
#endif
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: device.c,v 1.17 2017/01/21 08:33:51 krw Exp $ */
2
3			/*
4			* Copyright (c) 1993-95 Mats O Jansson. All rights reserved.
5			*
6			* Redistribution and use in source and binary forms, with or without
7			* modification, are permitted provided that the following conditions
8			* are met:
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			* 2. Redistributions in binary form must reproduce the above copyright
12			* notice, this list of conditions and the following disclaimer in the
13			* documentation and/or other materials provided with the distribution.
14			*
15			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25			*/
26
27			#include "os.h"
28			#include "common.h"
29			#include "device.h"
30			#include "mopdef.h"
31			#include "pf.h"
32
33			struct if_info iflist; / Interface List */
34
35			#ifdef DEV_NEW_CONF
36			/*
37			* Return ethernet address for interface
38			*/
39
40			void
41			deviceEthAddr(char ifname, u_char eaddr)
42			{
43			struct sockaddr_dl *sdl;
44			struct ifaddrs ifap, ifa;
45
46			if (getifaddrs(&ifap) != 0) {
47			syslog(LOG_ERR, "deviceEthAddr: getifaddrs: %m");
48			exit(1);
49			}
50
51			for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
52			sdl = (struct sockaddr_dl *)ifa->ifa_addr;
53			if (sdl->sdl_family != AF_LINK \|\| sdl->sdl_type != IFT_ETHER \|\|
54			sdl->sdl_alen != 6)
55			continue;
56			if (!strcmp(ifa->ifa_name, ifname)) {
57			bcopy(LLADDR(sdl), eaddr, 6);
58			freeifaddrs(ifap);
59			return;
60			}
61			}
62
63			syslog(LOG_ERR, "deviceEthAddr: Never saw interface `%s'!", ifname);
64			exit(1);
65			}
66			#endif /* DEV_NEW_CONF */
67
68			void
69			deviceOpen(char *ifname, u_short proto, int trans)
70			{
71			struct if_info *p, tmp;
72
73			strncpy(tmp.if_name, ifname, sizeof(tmp.if_name) - 1);
74			tmp.if_name[sizeof(tmp.if_name) - 1] = 0;
75			tmp.iopen = pfInit;
76
77			switch (proto) {
78			case MOP_K_PROTO_RC:
79			tmp.read = mopReadRC;
80			tmp.fd = mopOpenRC(&tmp, trans);
81			break;
82			case MOP_K_PROTO_DL:
83			tmp.read = mopReadDL;
84			tmp.fd = mopOpenDL(&tmp, trans);
85			break;
86			default:
87			break;
88			}
89
90			if (tmp.fd != -1) {
91			p = malloc(sizeof(*p));
92			if (p == 0) {
93			syslog(LOG_ERR, "deviceOpen: malloc: %m");
94			exit(1);
95			}
96
97			p->next = iflist;
98			iflist = p;
99
100			strlcpy(p->if_name, tmp.if_name, IFNAME_SIZE);
101			p->iopen = tmp.iopen;
102			p->write = pfWrite;
103			p->read = tmp.read;
104			bzero(p->eaddr, sizeof(p->eaddr));
105			p->fd = tmp.fd;
106
107			#ifdef DEV_NEW_CONF
108			deviceEthAddr(p->if_name, &p->eaddr[0]);
109			#else
110			p->eaddr[0] = tmp.eaddr[0];
111			p->eaddr[1] = tmp.eaddr[1];
112			p->eaddr[2] = tmp.eaddr[2];
113			p->eaddr[3] = tmp.eaddr[3];
114			p->eaddr[4] = tmp.eaddr[4];
115			p->eaddr[5] = tmp.eaddr[5];
116			#endif /* DEV_NEW_CONF */
117
118			#ifdef LINUX2_PF
119			{
120			int s;
121
122			s = socket(AF_INET, SOCK_DGRAM, 0);
123			pfEthAddr(s, p->if_name, &p->eaddr[0]);
124			close(s);
125			}
126			#endif
127			}
128			}
129
130			void
131			deviceInitOne(char *ifname)
132			{
133			char interface[IFNAME_SIZE];
134			struct if_info *p;
135			int trans;
136			#ifdef _AIX
137			char dev[IFNAME_SIZE];
138			int unit,j;
139
140			unit = 0;
141			for (j = 0; j < strlen(ifname); j++) {
142			if (isalpha((unsigned char)ifname[j]))
143			dev[j] = ifname[j];
144			else
145			if (isdigit((unsigned char)ifname[j])) {
146			unit = unit * 10 + ifname[j] - '0';
147			dev[j] = '\0';
148			}
149			}
150
151			if ((strlen(dev) == 2) && (dev[0] == 'e') &&
152			((dev[1] == 'n') \|\| (dev[1] == 't')))
153			snprintf(interface, sizeof(interface), "ent%d\0", unit);
154			else
155			snprintf(interface, sizeof(interface), "%s%d\0", dev, unit);
156			#else
157			snprintf(interface, sizeof(interface), "%s", ifname);
158			#endif /* _AIX */
159
160			/* Ok, init it just once */
161			p = iflist;
162			for (p = iflist; p; p = p->next)
163			if (strcmp(p->if_name, interface) == 0)
164			return;
165
166			syslog(LOG_INFO, "Initialized %s", interface);
167
168			/* Ok, get transport information */
169			trans = pfTrans(interface);
170
171			#ifndef NORC
172			/* Start with MOP Remote Console */
173			switch (trans) {
174			case TRANS_ETHER:
175			deviceOpen(interface, MOP_K_PROTO_RC, TRANS_ETHER);
176			break;
177			case TRANS_8023:
178			deviceOpen(interface, MOP_K_PROTO_RC, TRANS_8023);
179			break;
180			case TRANS_ETHER + TRANS_8023:
181			deviceOpen(interface, MOP_K_PROTO_RC, TRANS_ETHER);
182			deviceOpen(interface, MOP_K_PROTO_RC, TRANS_8023);
183			break;
184			case TRANS_ETHER + TRANS_8023 + TRANS_AND:
185			deviceOpen(interface, MOP_K_PROTO_RC, TRANS_ETHER + TRANS_8023);
186			break;
187			}
188			#endif
189
190			#ifndef NODL
191			/* and next MOP Dump/Load */
192			switch (trans) {
193			case TRANS_ETHER:
194			deviceOpen(interface, MOP_K_PROTO_DL, TRANS_ETHER);
195			break;
196			case TRANS_8023:
197			deviceOpen(interface, MOP_K_PROTO_DL, TRANS_8023);
198			break;
199			case TRANS_ETHER + TRANS_8023:
200			deviceOpen(interface, MOP_K_PROTO_DL, TRANS_ETHER);
201			deviceOpen(interface, MOP_K_PROTO_DL, TRANS_8023);
202			break;
203			case TRANS_ETHER + TRANS_8023 + TRANS_AND:
204			deviceOpen(interface, MOP_K_PROTO_DL, TRANS_ETHER + TRANS_8023);
205			break;
206			}
207			#endif
208
209			}
210
211			/*
212			* Initialize all "candidate" interfaces that are in the system
213			* configuration list. A "candidate" is up, not loopback and not
214			* point to point.
215			*/
216			void
217			deviceInitAll()
218			{
219			#ifdef DEV_NEW_CONF
220			struct sockaddr_dl *sdl;
221			struct ifaddrs ifap, ifa;
222
223			if (getifaddrs(&ifap) != 0) {
224			syslog(LOG_ERR, "deviceInitAll: getifaddrs: %m");
225			exit(1);
226			}
227
228			for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
229			sdl = (struct sockaddr_dl *)ifa->ifa_addr;
230			if (sdl->sdl_family != AF_LINK \|\| sdl->sdl_type != IFT_ETHER \|\|
231			sdl->sdl_alen != 6)
232			continue;
233			if ((ifa->ifa_flags &
234			(IFF_UP \| IFF_LOOPBACK \| IFF_POINTOPOINT)) != IFF_UP)
235			continue;
236			deviceInitOne(ifa->ifa_name);
237			}
238			freeifaddrs(ifap);
239			#else
240			struct ifaddrs ifap, ifa;
241
242			if (getifaddrs(&ifap) != 0) {
243			syslog(LOG_ERR, "deviceInitAll: getifaddrs: %m");
244			exit(1);
245			}
246
247			for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
248			if (/(ifa->ifa_flags & IFF_UP) == 0 \|\|/
249			ifa->ifa_flags & IFF_LOOPBACK \|\|
250			ifa->ifa_flags & IFF_POINTOPOINT)
251			continue;
252			deviceInitOne(ifa->ifa_name);
253			}
254			freeifaddrs(ifap);
255			#endif
256			}