[331] | 1 | /*
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| 2 | * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include <openssl/conf.h>
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| 13 | #include <openssl/asn1.h>
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| 14 | #include <openssl/asn1t.h>
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| 15 | #include <openssl/x509v3.h>
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| 16 | #include "ext_dat.h"
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| 17 |
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| 18 | /* Support for Thawte strong extranet extension */
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| 19 |
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| 20 | #define SXNET_TEST
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| 21 |
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| 22 | static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
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| 23 | int indent);
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| 24 | #ifdef SXNET_TEST
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| 25 | static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
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| 26 | STACK_OF(CONF_VALUE) *nval);
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| 27 | #endif
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| 28 | const X509V3_EXT_METHOD v3_sxnet = {
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| 29 | NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
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| 30 | 0, 0, 0, 0,
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| 31 | 0, 0,
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| 32 | 0,
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| 33 | #ifdef SXNET_TEST
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| 34 | (X509V3_EXT_V2I)sxnet_v2i,
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| 35 | #else
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| 36 | 0,
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| 37 | #endif
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| 38 | (X509V3_EXT_I2R)sxnet_i2r,
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| 39 | 0,
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| 40 | NULL
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| 41 | };
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| 42 |
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| 43 | ASN1_SEQUENCE(SXNETID) = {
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| 44 | ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
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| 45 | ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
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| 46 | } ASN1_SEQUENCE_END(SXNETID)
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| 47 |
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| 48 | IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
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| 49 |
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| 50 | ASN1_SEQUENCE(SXNET) = {
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| 51 | ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
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| 52 | ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
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| 53 | } ASN1_SEQUENCE_END(SXNET)
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| 54 |
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| 55 | IMPLEMENT_ASN1_FUNCTIONS(SXNET)
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| 56 |
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| 57 | static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
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| 58 | int indent)
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| 59 | {
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| 60 | long v;
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| 61 | char *tmp;
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| 62 | SXNETID *id;
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| 63 | int i;
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| 64 | v = ASN1_INTEGER_get(sx->version);
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| 65 | BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
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| 66 | for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
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| 67 | id = sk_SXNETID_value(sx->ids, i);
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| 68 | tmp = i2s_ASN1_INTEGER(NULL, id->zone);
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| 69 | BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
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| 70 | OPENSSL_free(tmp);
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| 71 | ASN1_STRING_print(out, id->user);
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| 72 | }
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| 73 | return 1;
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| 74 | }
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| 75 |
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| 76 | #ifdef SXNET_TEST
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| 77 |
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| 78 | /*
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| 79 | * NBB: this is used for testing only. It should *not* be used for anything
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| 80 | * else because it will just take static IDs from the configuration file and
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| 81 | * they should really be separate values for each user.
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| 82 | */
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| 83 |
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| 84 | static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
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| 85 | STACK_OF(CONF_VALUE) *nval)
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| 86 | {
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| 87 | CONF_VALUE *cnf;
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| 88 | SXNET *sx = NULL;
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| 89 | int i;
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| 90 | for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
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| 91 | cnf = sk_CONF_VALUE_value(nval, i);
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| 92 | if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
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| 93 | return NULL;
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| 94 | }
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| 95 | return sx;
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| 96 | }
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| 97 |
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| 98 | #endif
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| 99 |
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| 100 | /* Strong Extranet utility functions */
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| 101 |
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| 102 | /* Add an id given the zone as an ASCII number */
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| 103 |
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| 104 | int SXNET_add_id_asc(SXNET **psx, const char *zone, const char *user, int userlen)
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| 105 | {
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| 106 | ASN1_INTEGER *izone;
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| 107 |
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| 108 | if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
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| 109 | X509V3err(X509V3_F_SXNET_ADD_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE);
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| 110 | return 0;
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| 111 | }
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| 112 | return SXNET_add_id_INTEGER(psx, izone, user, userlen);
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| 113 | }
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| 114 |
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| 115 | /* Add an id given the zone as an unsigned long */
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| 116 |
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| 117 | int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, const char *user,
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| 118 | int userlen)
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| 119 | {
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| 120 | ASN1_INTEGER *izone;
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| 121 |
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| 122 | if ((izone = ASN1_INTEGER_new()) == NULL
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| 123 | || !ASN1_INTEGER_set(izone, lzone)) {
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| 124 | X509V3err(X509V3_F_SXNET_ADD_ID_ULONG, ERR_R_MALLOC_FAILURE);
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| 125 | ASN1_INTEGER_free(izone);
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| 126 | return 0;
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| 127 | }
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| 128 | return SXNET_add_id_INTEGER(psx, izone, user, userlen);
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| 129 |
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| 130 | }
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| 131 |
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| 132 | /*
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| 133 | * Add an id given the zone as an ASN1_INTEGER. Note this version uses the
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| 134 | * passed integer and doesn't make a copy so don't free it up afterwards.
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| 135 | */
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| 136 |
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| 137 | int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, const char *user,
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| 138 | int userlen)
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| 139 | {
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| 140 | SXNET *sx = NULL;
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| 141 | SXNETID *id = NULL;
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| 142 | if (!psx || !zone || !user) {
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| 143 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,
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| 144 | X509V3_R_INVALID_NULL_ARGUMENT);
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| 145 | return 0;
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| 146 | }
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| 147 | if (userlen == -1)
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| 148 | userlen = strlen(user);
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| 149 | if (userlen > 64) {
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| 150 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_USER_TOO_LONG);
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| 151 | return 0;
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| 152 | }
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| 153 | if (*psx == NULL) {
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| 154 | if ((sx = SXNET_new()) == NULL)
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| 155 | goto err;
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| 156 | if (!ASN1_INTEGER_set(sx->version, 0))
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| 157 | goto err;
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| 158 | *psx = sx;
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| 159 | } else
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| 160 | sx = *psx;
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| 161 | if (SXNET_get_id_INTEGER(sx, zone)) {
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| 162 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_DUPLICATE_ZONE_ID);
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| 163 | return 0;
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| 164 | }
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| 165 |
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| 166 | if ((id = SXNETID_new()) == NULL)
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| 167 | goto err;
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| 168 | if (userlen == -1)
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| 169 | userlen = strlen(user);
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| 170 |
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| 171 | if (!ASN1_OCTET_STRING_set(id->user, (const unsigned char *)user, userlen))
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| 172 | goto err;
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| 173 | if (!sk_SXNETID_push(sx->ids, id))
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| 174 | goto err;
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| 175 | id->zone = zone;
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| 176 | return 1;
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| 177 |
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| 178 | err:
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| 179 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, ERR_R_MALLOC_FAILURE);
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| 180 | SXNETID_free(id);
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| 181 | SXNET_free(sx);
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| 182 | *psx = NULL;
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| 183 | return 0;
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| 184 | }
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| 185 |
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| 186 | ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, const char *zone)
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| 187 | {
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| 188 | ASN1_INTEGER *izone;
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| 189 | ASN1_OCTET_STRING *oct;
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| 190 |
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| 191 | if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
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| 192 | X509V3err(X509V3_F_SXNET_GET_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE);
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| 193 | return NULL;
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| 194 | }
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| 195 | oct = SXNET_get_id_INTEGER(sx, izone);
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| 196 | ASN1_INTEGER_free(izone);
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| 197 | return oct;
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| 198 | }
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| 199 |
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| 200 | ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
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| 201 | {
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| 202 | ASN1_INTEGER *izone;
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| 203 | ASN1_OCTET_STRING *oct;
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| 204 |
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| 205 | if ((izone = ASN1_INTEGER_new()) == NULL
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| 206 | || !ASN1_INTEGER_set(izone, lzone)) {
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| 207 | X509V3err(X509V3_F_SXNET_GET_ID_ULONG, ERR_R_MALLOC_FAILURE);
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| 208 | ASN1_INTEGER_free(izone);
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| 209 | return NULL;
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| 210 | }
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| 211 | oct = SXNET_get_id_INTEGER(sx, izone);
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| 212 | ASN1_INTEGER_free(izone);
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| 213 | return oct;
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| 214 | }
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| 215 |
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| 216 | ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
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| 217 | {
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| 218 | SXNETID *id;
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| 219 | int i;
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| 220 | for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
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| 221 | id = sk_SXNETID_value(sx->ids, i);
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| 222 | if (!ASN1_INTEGER_cmp(id->zone, zone))
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| 223 | return id->user;
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| 224 | }
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| 225 | return NULL;
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| 226 | }
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