1 | /* |
2 | * Copyright 1999-2016 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 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 | { |
60 | long v; |
61 | char *tmp; |
62 | SXNETID *id; |
63 | int i; |
64 | v = ASN1_INTEGER_get(sx->version); |
65 | BIO_printf(out, "%*sVersion: %ld (0x%lX)" , indent, "" , v + 1, v); |
66 | for (i = 0; i < sk_SXNETID_num(sx->ids); i++) { |
67 | id = sk_SXNETID_value(sx->ids, i); |
68 | tmp = i2s_ASN1_INTEGER(NULL, id->zone); |
69 | BIO_printf(out, "\n%*sZone: %s, User: " , indent, "" , tmp); |
70 | OPENSSL_free(tmp); |
71 | ASN1_STRING_print(out, id->user); |
72 | } |
73 | return 1; |
74 | } |
75 | |
76 | #ifdef SXNET_TEST |
77 | |
78 | /* |
79 | * NBB: this is used for testing only. It should *not* be used for anything |
80 | * else because it will just take static IDs from the configuration file and |
81 | * they should really be separate values for each user. |
82 | */ |
83 | |
84 | static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, |
85 | STACK_OF(CONF_VALUE) *nval) |
86 | { |
87 | CONF_VALUE *cnf; |
88 | SXNET *sx = NULL; |
89 | int i; |
90 | for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { |
91 | cnf = sk_CONF_VALUE_value(nval, i); |
92 | if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1)) |
93 | return NULL; |
94 | } |
95 | return sx; |
96 | } |
97 | |
98 | #endif |
99 | |
100 | /* Strong Extranet utility functions */ |
101 | |
102 | /* Add an id given the zone as an ASCII number */ |
103 | |
104 | int SXNET_add_id_asc(SXNET **psx, const char *zone, const char *user, int userlen) |
105 | { |
106 | ASN1_INTEGER *izone; |
107 | |
108 | if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) { |
109 | X509V3err(X509V3_F_SXNET_ADD_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE); |
110 | return 0; |
111 | } |
112 | return SXNET_add_id_INTEGER(psx, izone, user, userlen); |
113 | } |
114 | |
115 | /* Add an id given the zone as an unsigned long */ |
116 | |
117 | int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, const char *user, |
118 | int userlen) |
119 | { |
120 | ASN1_INTEGER *izone; |
121 | |
122 | if ((izone = ASN1_INTEGER_new()) == NULL |
123 | || !ASN1_INTEGER_set(izone, lzone)) { |
124 | X509V3err(X509V3_F_SXNET_ADD_ID_ULONG, ERR_R_MALLOC_FAILURE); |
125 | ASN1_INTEGER_free(izone); |
126 | return 0; |
127 | } |
128 | return SXNET_add_id_INTEGER(psx, izone, user, userlen); |
129 | |
130 | } |
131 | |
132 | /* |
133 | * Add an id given the zone as an ASN1_INTEGER. Note this version uses the |
134 | * passed integer and doesn't make a copy so don't free it up afterwards. |
135 | */ |
136 | |
137 | int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, const char *user, |
138 | int userlen) |
139 | { |
140 | SXNET *sx = NULL; |
141 | SXNETID *id = NULL; |
142 | |
143 | if (psx == NULL || zone == NULL || user == NULL) { |
144 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, |
145 | X509V3_R_INVALID_NULL_ARGUMENT); |
146 | return 0; |
147 | } |
148 | if (userlen == -1) |
149 | userlen = strlen(user); |
150 | if (userlen > 64) { |
151 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_USER_TOO_LONG); |
152 | return 0; |
153 | } |
154 | if (*psx == NULL) { |
155 | if ((sx = SXNET_new()) == NULL) |
156 | goto err; |
157 | if (!ASN1_INTEGER_set(sx->version, 0)) |
158 | goto err; |
159 | *psx = sx; |
160 | } else |
161 | sx = *psx; |
162 | if (SXNET_get_id_INTEGER(sx, zone)) { |
163 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_DUPLICATE_ZONE_ID); |
164 | return 0; |
165 | } |
166 | |
167 | if ((id = SXNETID_new()) == NULL) |
168 | goto err; |
169 | if (userlen == -1) |
170 | userlen = strlen(user); |
171 | |
172 | if (!ASN1_OCTET_STRING_set(id->user, (const unsigned char *)user, userlen)) |
173 | goto err; |
174 | if (!sk_SXNETID_push(sx->ids, id)) |
175 | goto err; |
176 | id->zone = zone; |
177 | return 1; |
178 | |
179 | err: |
180 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, ERR_R_MALLOC_FAILURE); |
181 | SXNETID_free(id); |
182 | SXNET_free(sx); |
183 | *psx = NULL; |
184 | return 0; |
185 | } |
186 | |
187 | ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, const char *zone) |
188 | { |
189 | ASN1_INTEGER *izone; |
190 | ASN1_OCTET_STRING *oct; |
191 | |
192 | if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) { |
193 | X509V3err(X509V3_F_SXNET_GET_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE); |
194 | return NULL; |
195 | } |
196 | oct = SXNET_get_id_INTEGER(sx, izone); |
197 | ASN1_INTEGER_free(izone); |
198 | return oct; |
199 | } |
200 | |
201 | ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone) |
202 | { |
203 | ASN1_INTEGER *izone; |
204 | ASN1_OCTET_STRING *oct; |
205 | |
206 | if ((izone = ASN1_INTEGER_new()) == NULL |
207 | || !ASN1_INTEGER_set(izone, lzone)) { |
208 | X509V3err(X509V3_F_SXNET_GET_ID_ULONG, ERR_R_MALLOC_FAILURE); |
209 | ASN1_INTEGER_free(izone); |
210 | return NULL; |
211 | } |
212 | oct = SXNET_get_id_INTEGER(sx, izone); |
213 | ASN1_INTEGER_free(izone); |
214 | return oct; |
215 | } |
216 | |
217 | ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone) |
218 | { |
219 | SXNETID *id; |
220 | int i; |
221 | for (i = 0; i < sk_SXNETID_num(sx->ids); i++) { |
222 | id = sk_SXNETID_value(sx->ids, i); |
223 | if (!ASN1_INTEGER_cmp(id->zone, zone)) |
224 | return id->user; |
225 | } |
226 | return NULL; |
227 | } |
228 | |