/src/openssl/crypto/x509/v3_sxnet.c

Source (jump to first uncovered line)
/*
 * Copyright 1999-2024 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/conf.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/x509v3.h>
#include "ext_dat.h"

/* Support for Thawte strong extranet extension */

#define SXNET_TEST

static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
                     int indent);
#ifdef SXNET_TEST
static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
                        STACK_OF(CONF_VALUE) *nval);
#endif
const X509V3_EXT_METHOD ossl_v3_sxnet = {
    NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
    0, 0, 0, 0,
    0, 0,
    0,
#ifdef SXNET_TEST
    (X509V3_EXT_V2I)sxnet_v2i,
#else
    0,
#endif
    (X509V3_EXT_I2R)sxnet_i2r,
    0,
    NULL
};

ASN1_SEQUENCE(SXNETID) = {
        ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
        ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(SXNETID)

IMPLEMENT_ASN1_FUNCTIONS(SXNETID)

ASN1_SEQUENCE(SXNET) = {
        ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
        ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
} ASN1_SEQUENCE_END(SXNET)

IMPLEMENT_ASN1_FUNCTIONS(SXNET)

static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
                     int indent)
{
    int64_t v;
    char *tmp;
    SXNETID *id;
    int i;

    /*
     * Since we add 1 to the version number to display it, we don't support
     * LONG_MAX since that would cause on overflow.
     */
    if (!ASN1_INTEGER_get_int64(&v, sx->version)
            || v >= LONG_MAX
            || v < LONG_MIN) {
        BIO_printf(out, "%*sVersion: <unsupported>", indent, "");
    } else {
        long vl = (long)v;

        BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", vl + 1, vl);
    }
    for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
        id = sk_SXNETID_value(sx->ids, i);
        tmp = i2s_ASN1_INTEGER(NULL, id->zone);
        if (tmp == NULL)
            return 0;
        BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
        OPENSSL_free(tmp);
        ASN1_STRING_print(out, id->user);
    }
    return 1;
}

#ifdef SXNET_TEST

/*
 * NBB: this is used for testing only. It should *not* be used for anything
 * else because it will just take static IDs from the configuration file and
 * they should really be separate values for each user.
 */

static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
                        STACK_OF(CONF_VALUE) *nval)
{
    CONF_VALUE *cnf;
    SXNET *sx = NULL;
    int i;
    for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
        cnf = sk_CONF_VALUE_value(nval, i);
        if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1)) {
            SXNET_free(sx);
            return NULL;
  }
    }
    return sx;
}

#endif

/* Strong Extranet utility functions */

/* Add an id given the zone as an ASCII number */

int SXNET_add_id_asc(SXNET **psx, const char *zone, const char *user, int userlen)
{
    ASN1_INTEGER *izone;

    if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
        ERR_raise(ERR_LIB_X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
        return 0;
    }
    if (!SXNET_add_id_INTEGER(psx, izone, user, userlen)) {
        ASN1_INTEGER_free(izone);
        return 0;
    }
    return 1;
}

/* Add an id given the zone as an unsigned long */

int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, const char *user,
                       int userlen)
{
    ASN1_INTEGER *izone;

    if ((izone = ASN1_INTEGER_new()) == NULL
        || !ASN1_INTEGER_set(izone, lzone)) {
        ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
        ASN1_INTEGER_free(izone);
        return 0;
    }
    if (!SXNET_add_id_INTEGER(psx, izone, user, userlen)) {
        ASN1_INTEGER_free(izone);
        return 0;
    }
    return 1;
}

/*
 * Add an id given the zone as an ASN1_INTEGER. Note this version uses the
 * passed integer and doesn't make a copy so don't free it up afterwards.
 */

int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, const char *user,
                         int userlen)
{
    SXNET *sx = NULL;
    SXNETID *id = NULL;

    if (psx == NULL || zone == NULL || user == NULL) {
        ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_NULL_ARGUMENT);
        return 0;
    }
    if (userlen == -1)
        userlen = strlen(user);
    if (userlen > 64) {
        ERR_raise(ERR_LIB_X509V3, X509V3_R_USER_TOO_LONG);
        return 0;
    }
    if (*psx == NULL) {
        if ((sx = SXNET_new()) == NULL) {
            ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
            goto err;
        }
        if (!ASN1_INTEGER_set(sx->version, 0)) {
            ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
            goto err;
        }
    } else
        sx = *psx;
    if (SXNET_get_id_INTEGER(sx, zone)) {
        ERR_raise(ERR_LIB_X509V3, X509V3_R_DUPLICATE_ZONE_ID);
        if (*psx == NULL)
            SXNET_free(sx);
        return 0;
    }

    if ((id = SXNETID_new()) == NULL) {
        ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
        goto err;
    }

    if (!ASN1_OCTET_STRING_set(id->user, (const unsigned char *)user, userlen)){
        ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
        goto err;
    }
    if (!sk_SXNETID_push(sx->ids, id)) {
        ERR_raise(ERR_LIB_X509V3, ERR_R_CRYPTO_LIB);
        goto err;
    }
    ASN1_INTEGER_free(id->zone);
    id->zone = zone;
    *psx = sx;
    return 1;

 err:
    SXNETID_free(id);
    if (*psx == NULL)
        SXNET_free(sx);
    return 0;
}

ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, const char *zone)
{
    ASN1_INTEGER *izone;
    ASN1_OCTET_STRING *oct;

    if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
        ERR_raise(ERR_LIB_X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
        return NULL;
    }
    oct = SXNET_get_id_INTEGER(sx, izone);
    ASN1_INTEGER_free(izone);
    return oct;
}

ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
{
    ASN1_INTEGER *izone;
    ASN1_OCTET_STRING *oct;

    if ((izone = ASN1_INTEGER_new()) == NULL
        || !ASN1_INTEGER_set(izone, lzone)) {
        ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
        ASN1_INTEGER_free(izone);
        return NULL;
    }
    oct = SXNET_get_id_INTEGER(sx, izone);
    ASN1_INTEGER_free(izone);
    return oct;
}

ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
{
    SXNETID *id;
    int i;
    for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
        id = sk_SXNETID_value(sx->ids, i);
        if (!ASN1_INTEGER_cmp(id->zone, zone))
            return id->user;
    }
    return NULL;
}

Coverage Report

Created: 2025-06-13 06:56

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1999-2024 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <stdio.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/conf.h>
13		#include <openssl/asn1.h>
14		#include <openssl/asn1t.h>
15		#include <openssl/x509v3.h>
16		#include "ext_dat.h"
17
18		/* Support for Thawte strong extranet extension */
19
20		#define SXNET_TEST
21
22		static int sxnet_i2r(X509V3_EXT_METHOD method, SXNET sx, BIO *out,
23		int indent);
24		#ifdef SXNET_TEST
25		static SXNET sxnet_v2i(X509V3_EXT_METHOD method, X509V3_CTX *ctx,
26		STACK_OF(CONF_VALUE) *nval);
27		#endif
28		const X509V3_EXT_METHOD ossl_v3_sxnet = {
29		NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
30		0, 0, 0, 0,
31		0, 0,
32		0,
33		#ifdef SXNET_TEST
34		(X509V3_EXT_V2I)sxnet_v2i,
35		#else
36		0,
37		#endif
38		(X509V3_EXT_I2R)sxnet_i2r,
39		0,
40		NULL
41		};
42
43		ASN1_SEQUENCE(SXNETID) = {
44		ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
45		ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
46		} ASN1_SEQUENCE_END(SXNETID)
47
48		IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
49
50		ASN1_SEQUENCE(SXNET) = {
51		ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
52		ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
53		} ASN1_SEQUENCE_END(SXNET)
54
55		IMPLEMENT_ASN1_FUNCTIONS(SXNET)
56
57		static int sxnet_i2r(X509V3_EXT_METHOD method, SXNET sx, BIO *out,
58		int indent)
59	0	{
60	0	int64_t v;
61	0	char *tmp;
62	0	SXNETID *id;
63	0	int i;
64
65		/*
66		* Since we add 1 to the version number to display it, we don't support
67		* LONG_MAX since that would cause on overflow.
68		*/
69	0	if (!ASN1_INTEGER_get_int64(&v, sx->version)
70	0	\|\| v >= LONG_MAX
71	0	\|\| v < LONG_MIN) {
72	0	BIO_printf(out, "%*sVersion: <unsupported>", indent, "");
73	0	} else {
74	0	long vl = (long)v;
75
76	0	BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", vl + 1, vl);
77	0	}
78	0	for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
79	0	id = sk_SXNETID_value(sx->ids, i);
80	0	tmp = i2s_ASN1_INTEGER(NULL, id->zone);
81	0	if (tmp == NULL)
82	0	return 0;
83	0	BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
84	0	OPENSSL_free(tmp);
85	0	ASN1_STRING_print(out, id->user);
86	0	}
87	0	return 1;
88	0	}
89
90		#ifdef SXNET_TEST
91
92		/*
93		* NBB: this is used for testing only. It should not be used for anything
94		* else because it will just take static IDs from the configuration file and
95		* they should really be separate values for each user.
96		*/
97
98		static SXNET sxnet_v2i(X509V3_EXT_METHOD method, X509V3_CTX *ctx,
99		STACK_OF(CONF_VALUE) *nval)
100	0	{
101	0	CONF_VALUE *cnf;
102	0	SXNET *sx = NULL;
103	0	int i;
104	0	for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
105	0	cnf = sk_CONF_VALUE_value(nval, i);
106	0	if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1)) {
107	0	SXNET_free(sx);
108	0	return NULL;
109	0	}
110	0	}
111	0	return sx;
112	0	}
113
114		#endif
115
116		/* Strong Extranet utility functions */
117
118		/* Add an id given the zone as an ASCII number */
119
120		int SXNET_add_id_asc(SXNET *psx, const char zone, const char *user, int userlen)
121	0	{
122	0	ASN1_INTEGER *izone;
123
124	0	if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
125	0	ERR_raise(ERR_LIB_X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
126	0	return 0;
127	0	}
128	0	if (!SXNET_add_id_INTEGER(psx, izone, user, userlen)) {
129	0	ASN1_INTEGER_free(izone);
130	0	return 0;
131	0	}
132	0	return 1;
133	0	}
134
135		/* Add an id given the zone as an unsigned long */
136
137		int SXNET_add_id_ulong(SXNET *psx, unsigned long lzone, const char user,
138		int userlen)
139	0	{
140	0	ASN1_INTEGER *izone;
141
142	0	if ((izone = ASN1_INTEGER_new()) == NULL
143	0	\|\| !ASN1_INTEGER_set(izone, lzone)) {
144	0	ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
145	0	ASN1_INTEGER_free(izone);
146	0	return 0;
147	0	}
148	0	if (!SXNET_add_id_INTEGER(psx, izone, user, userlen)) {
149	0	ASN1_INTEGER_free(izone);
150	0	return 0;
151	0	}
152	0	return 1;
153	0	}
154
155		/*
156		* Add an id given the zone as an ASN1_INTEGER. Note this version uses the
157		* passed integer and doesn't make a copy so don't free it up afterwards.
158		*/
159
160		int SXNET_add_id_INTEGER(SXNET *psx, ASN1_INTEGER zone, const char *user,
161		int userlen)
162	0	{
163	0	SXNET *sx = NULL;
164	0	SXNETID *id = NULL;
165
166	0	if (psx == NULL \|\| zone == NULL \|\| user == NULL) {
167	0	ERR_raise(ERR_LIB_X509V3, X509V3_R_INVALID_NULL_ARGUMENT);
168	0	return 0;
169	0	}
170	0	if (userlen == -1)
171	0	userlen = strlen(user);
172	0	if (userlen > 64) {
173	0	ERR_raise(ERR_LIB_X509V3, X509V3_R_USER_TOO_LONG);
174	0	return 0;
175	0	}
176	0	if (*psx == NULL) {
177	0	if ((sx = SXNET_new()) == NULL) {
178	0	ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
179	0	goto err;
180	0	}
181	0	if (!ASN1_INTEGER_set(sx->version, 0)) {
182	0	ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
183	0	goto err;
184	0	}
185	0	} else
186	0	sx = *psx;
187	0	if (SXNET_get_id_INTEGER(sx, zone)) {
188	0	ERR_raise(ERR_LIB_X509V3, X509V3_R_DUPLICATE_ZONE_ID);
189	0	if (*psx == NULL)
190	0	SXNET_free(sx);
191	0	return 0;
192	0	}
193
194	0	if ((id = SXNETID_new()) == NULL) {
195	0	ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
196	0	goto err;
197	0	}
198
199	0	if (!ASN1_OCTET_STRING_set(id->user, (const unsigned char *)user, userlen)){
200	0	ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
201	0	goto err;
202	0	}
203	0	if (!sk_SXNETID_push(sx->ids, id)) {
204	0	ERR_raise(ERR_LIB_X509V3, ERR_R_CRYPTO_LIB);
205	0	goto err;
206	0	}
207	0	ASN1_INTEGER_free(id->zone);
208	0	id->zone = zone;
209	0	*psx = sx;
210	0	return 1;
211
212	0	err:
213	0	SXNETID_free(id);
214	0	if (*psx == NULL)
215	0	SXNET_free(sx);
216	0	return 0;
217	0	}
218
219		ASN1_OCTET_STRING SXNET_get_id_asc(SXNET sx, const char *zone)
220	0	{
221	0	ASN1_INTEGER *izone;
222	0	ASN1_OCTET_STRING *oct;
223
224	0	if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
225	0	ERR_raise(ERR_LIB_X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
226	0	return NULL;
227	0	}
228	0	oct = SXNET_get_id_INTEGER(sx, izone);
229	0	ASN1_INTEGER_free(izone);
230	0	return oct;
231	0	}
232
233		ASN1_OCTET_STRING SXNET_get_id_ulong(SXNET sx, unsigned long lzone)
234	0	{
235	0	ASN1_INTEGER *izone;
236	0	ASN1_OCTET_STRING *oct;
237
238	0	if ((izone = ASN1_INTEGER_new()) == NULL
239	0	\|\| !ASN1_INTEGER_set(izone, lzone)) {
240	0	ERR_raise(ERR_LIB_X509V3, ERR_R_ASN1_LIB);
241	0	ASN1_INTEGER_free(izone);
242	0	return NULL;
243	0	}
244	0	oct = SXNET_get_id_INTEGER(sx, izone);
245	0	ASN1_INTEGER_free(izone);
246	0	return oct;
247	0	}
248
249		ASN1_OCTET_STRING SXNET_get_id_INTEGER(SXNET sx, ASN1_INTEGER *zone)
250	0	{
251	0	SXNETID *id;
252	0	int i;
253	0	for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
254	0	id = sk_SXNETID_value(sx->ids, i);
255	0	if (!ASN1_INTEGER_cmp(id->zone, zone))
256	0	return id->user;
257	0	}
258	0	return NULL;
259	0	}