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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	sbin/isakmpd/vendor.c	Lines:	0	47	0.0 %
Date:	2017-11-13	Branches:	0	22	0.0 %


/*	$OpenBSD: vendor.c,v 1.6 2017/11/08 13:33:49 patrick Exp $	*/
/*
 * Copyright (c) 2006 Hans-Joerg Hoexer <hshoexer@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <stdlib.h>
#include <string.h>

#include "exchange.h"
#include "hash.h"
#include "log.h"
#include "message.h"
#include "vendor.h"

static struct vendor_cap openbsd_vendor_cap[] = {
	{ "OpenBSD-6.3", NULL, 0 },
};

#define NUMVIDS	(sizeof openbsd_vendor_cap / sizeof openbsd_vendor_cap[0])

static int
setup_vendor_hashes(void)
{
	struct hash	*hash;
	int		 i, n = NUMVIDS;

	hash = hash_get(HASH_MD5);
	if (!hash) {
		log_print("setup_vendor_hashes: could not find MD5 hash");
		return -1;
	}

	for (i = 0; i < n; i++) {
		openbsd_vendor_cap[i].hashsize = hash->hashsize;
		openbsd_vendor_cap[i].hash = calloc(hash->hashsize,
		    sizeof(u_int8_t));
		if (openbsd_vendor_cap[i].hash == NULL) {
			log_error("setup_vendor_hashes: calloc failed");
			goto errout;
		}

		hash->Init(hash->ctx);
		hash->Update(hash->ctx,
		    (unsigned char *)openbsd_vendor_cap[i].text,
		    strlen(openbsd_vendor_cap[i].text));
		hash->Final(openbsd_vendor_cap[i].hash, hash->ctx);

		LOG_DBG((LOG_EXCHANGE, 50, "setup_vendor_hashes: "
		    "MD5(\"%s\") (%lu bytes)", openbsd_vendor_cap[i].text,
		    (unsigned long)hash->hashsize));
		LOG_DBG_BUF((LOG_EXCHANGE, 50, "setup_vendor_hashes",
		    openbsd_vendor_cap[i].hash, hash->hashsize));
	}
	return 0;

errout:
	for (i = 0; i < n; i++)
		free(openbsd_vendor_cap[i].hash);
	return -1;
}

void
vendor_init(void)
{
	setup_vendor_hashes();
}

int
add_vendor_openbsd(struct message *msg)
{
	u_int8_t	*buf;
	size_t		 buflen;
	int		 i, n = NUMVIDS;

	for (i = 0; i < n; i++) {
		buflen = openbsd_vendor_cap[i].hashsize + ISAKMP_GEN_SZ;
		if ((buf = calloc(buflen, sizeof(char))) == NULL) {
			log_error("add_vendor_payload: calloc(%lu) failed",
			    (unsigned long)buflen);
			return -1;
		}

		SET_ISAKMP_GEN_LENGTH(buf, buflen);
		memcpy(buf + ISAKMP_VENDOR_ID_OFF, openbsd_vendor_cap[i].hash,
		    openbsd_vendor_cap[i].hashsize);
		if (message_add_payload(msg, ISAKMP_PAYLOAD_VENDOR, buf,
		    buflen, 1)) {
			free(buf);
			return -1;
		}
	}

	return 0;
}

void
check_vendor_openbsd(struct message *msg, struct payload *p)
{
	u_int8_t	*pbuf = p->p;
	ssize_t		 vlen;
	int		 i, n = NUMVIDS;

	if (msg->exchange->flags & EXCHANGE_FLAG_OPENBSD) {
		p->flags |= PL_MARK;
		return;
	}

	vlen = GET_ISAKMP_GEN_LENGTH(pbuf) - ISAKMP_GEN_SZ;

	for (i = 0; i < n; i++) {
		if (vlen != openbsd_vendor_cap[i].hashsize) {
			LOG_DBG((LOG_EXCHANGE, 90,
			    "check_vendor_openbsd: bad size %lu != %lu",
			    (unsigned long)vlen,
			    (unsigned long)openbsd_vendor_cap[i].hashsize));
			continue;
		}
		if (memcmp(openbsd_vendor_cap[i].hash, pbuf + ISAKMP_GEN_SZ,
		    vlen) == 0) {
			msg->exchange->flags |= EXCHANGE_FLAG_OPENBSD;
			LOG_DBG((LOG_EXCHANGE, 10, "check_vendor_openbsd: "
			    "OpenBSD (%s)", openbsd_vendor_cap[i].text));
		}
		p->flags |= PL_MARK;
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: vendor.c,v 1.6 2017/11/08 13:33:49 patrick Exp $ */
2			/*
3			* Copyright (c) 2006 Hans-Joerg Hoexer <hshoexer@openbsd.org>
4			*
5			* Permission to use, copy, modify, and distribute this software for any
6			* purpose with or without fee is hereby granted, provided that the above
7			* copyright notice and this permission notice appear in all copies.
8			*
9			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16			*/
17
18			#include <sys/types.h>
19			#include <stdlib.h>
20			#include <string.h>
21
22			#include "exchange.h"
23			#include "hash.h"
24			#include "log.h"
25			#include "message.h"
26			#include "vendor.h"
27
28			static struct vendor_cap openbsd_vendor_cap[] = {
29			{ "OpenBSD-6.3", NULL, 0 },
30			};
31
32			#define NUMVIDS (sizeof openbsd_vendor_cap / sizeof openbsd_vendor_cap[0])
33
34			static int
35			setup_vendor_hashes(void)
36			{
37			struct hash *hash;
38			int i, n = NUMVIDS;
39
40			hash = hash_get(HASH_MD5);
41			if (!hash) {
42			log_print("setup_vendor_hashes: could not find MD5 hash");
43			return -1;
44			}
45
46			for (i = 0; i < n; i++) {
47			openbsd_vendor_cap[i].hashsize = hash->hashsize;
48			openbsd_vendor_cap[i].hash = calloc(hash->hashsize,
49			sizeof(u_int8_t));
50			if (openbsd_vendor_cap[i].hash == NULL) {
51			log_error("setup_vendor_hashes: calloc failed");
52			goto errout;
53			}
54
55			hash->Init(hash->ctx);
56			hash->Update(hash->ctx,
57			(unsigned char *)openbsd_vendor_cap[i].text,
58			strlen(openbsd_vendor_cap[i].text));
59			hash->Final(openbsd_vendor_cap[i].hash, hash->ctx);
60
61			LOG_DBG((LOG_EXCHANGE, 50, "setup_vendor_hashes: "
62			"MD5(\"%s\") (%lu bytes)", openbsd_vendor_cap[i].text,
63			(unsigned long)hash->hashsize));
64			LOG_DBG_BUF((LOG_EXCHANGE, 50, "setup_vendor_hashes",
65			openbsd_vendor_cap[i].hash, hash->hashsize));
66			}
67			return 0;
68
69			errout:
70			for (i = 0; i < n; i++)
71			free(openbsd_vendor_cap[i].hash);
72			return -1;
73			}
74
75			void
76			vendor_init(void)
77			{
78			setup_vendor_hashes();
79			}
80
81			int
82			add_vendor_openbsd(struct message *msg)
83			{
84			u_int8_t *buf;
85			size_t buflen;
86			int i, n = NUMVIDS;
87
88			for (i = 0; i < n; i++) {
89			buflen = openbsd_vendor_cap[i].hashsize + ISAKMP_GEN_SZ;
90			if ((buf = calloc(buflen, sizeof(char))) == NULL) {
91			log_error("add_vendor_payload: calloc(%lu) failed",
92			(unsigned long)buflen);
93			return -1;
94			}
95
96			SET_ISAKMP_GEN_LENGTH(buf, buflen);
97			memcpy(buf + ISAKMP_VENDOR_ID_OFF, openbsd_vendor_cap[i].hash,
98			openbsd_vendor_cap[i].hashsize);
99			if (message_add_payload(msg, ISAKMP_PAYLOAD_VENDOR, buf,
100			buflen, 1)) {
101			free(buf);
102			return -1;
103			}
104			}
105
106			return 0;
107			}
108
109			void
110			check_vendor_openbsd(struct message msg, struct payload p)
111			{
112			u_int8_t *pbuf = p->p;
113			ssize_t vlen;
114			int i, n = NUMVIDS;
115
116			if (msg->exchange->flags & EXCHANGE_FLAG_OPENBSD) {
117			p->flags \|= PL_MARK;
118			return;
119			}
120
121			vlen = GET_ISAKMP_GEN_LENGTH(pbuf) - ISAKMP_GEN_SZ;
122
123			for (i = 0; i < n; i++) {
124			if (vlen != openbsd_vendor_cap[i].hashsize) {
125			LOG_DBG((LOG_EXCHANGE, 90,
126			"check_vendor_openbsd: bad size %lu != %lu",
127			(unsigned long)vlen,
128			(unsigned long)openbsd_vendor_cap[i].hashsize));
129			continue;
130			}
131			if (memcmp(openbsd_vendor_cap[i].hash, pbuf + ISAKMP_GEN_SZ,
132			vlen) == 0) {
133			msg->exchange->flags \|= EXCHANGE_FLAG_OPENBSD;
134			LOG_DBG((LOG_EXCHANGE, 10, "check_vendor_openbsd: "
135			"OpenBSD (%s)", openbsd_vendor_cap[i].text));
136			}
137			p->flags \|= PL_MARK;
138			}
139			}