/* $OpenBSD: v3_sxnet.c,v 1.22 2019/03/13 20:34:00 tb Exp $ */ /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL * project 1999. */ /* ==================================================================== * Copyright (c) 1999 The OpenSSL Project. 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. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS CONTRIBUTORS 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. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include #include #include #include #include #include #include /* 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 v3_sxnet = { .ext_nid = NID_sxnet, .ext_flags = X509V3_EXT_MULTILINE, .it = &SXNET_it, .ext_new = NULL, .ext_free = NULL, .d2i = NULL, .i2d = NULL, .i2s = NULL, .s2i = NULL, .i2v = NULL, #ifdef SXNET_TEST .v2i = (X509V3_EXT_V2I)sxnet_v2i, #else .v2i = NULL, #endif .i2r = (X509V3_EXT_I2R)sxnet_i2r, .r2i = NULL, .usr_data = NULL, }; static const ASN1_TEMPLATE SXNETID_seq_tt[] = { { .flags = 0, .tag = 0, .offset = offsetof(SXNETID, zone), .field_name = "zone", .item = &ASN1_INTEGER_it, }, { .flags = 0, .tag = 0, .offset = offsetof(SXNETID, user), .field_name = "user", .item = &ASN1_OCTET_STRING_it, }, }; const ASN1_ITEM SXNETID_it = { .itype = ASN1_ITYPE_SEQUENCE, .utype = V_ASN1_SEQUENCE, .templates = SXNETID_seq_tt, .tcount = sizeof(SXNETID_seq_tt) / sizeof(ASN1_TEMPLATE), .funcs = NULL, .size = sizeof(SXNETID), .sname = "SXNETID", }; SXNETID * d2i_SXNETID(SXNETID **a, const unsigned char **in, long len) { return (SXNETID *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, &SXNETID_it); } int i2d_SXNETID(SXNETID *a, unsigned char **out) { return ASN1_item_i2d((ASN1_VALUE *)a, out, &SXNETID_it); } SXNETID * SXNETID_new(void) { return (SXNETID *)ASN1_item_new(&SXNETID_it); } void SXNETID_free(SXNETID *a) { ASN1_item_free((ASN1_VALUE *)a, &SXNETID_it); } static const ASN1_TEMPLATE SXNET_seq_tt[] = { { .flags = 0, .tag = 0, .offset = offsetof(SXNET, version), .field_name = "version", .item = &ASN1_INTEGER_it, }, { .flags = ASN1_TFLG_SEQUENCE_OF, .tag = 0, .offset = offsetof(SXNET, ids), .field_name = "ids", .item = &SXNETID_it, }, }; const ASN1_ITEM SXNET_it = { .itype = ASN1_ITYPE_SEQUENCE, .utype = V_ASN1_SEQUENCE, .templates = SXNET_seq_tt, .tcount = sizeof(SXNET_seq_tt) / sizeof(ASN1_TEMPLATE), .funcs = NULL, .size = sizeof(SXNET), .sname = "SXNET", }; SXNET * d2i_SXNET(SXNET **a, const unsigned char **in, long len) { return (SXNET *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, &SXNET_it); } int i2d_SXNET(SXNET *a, unsigned char **out) { return ASN1_item_i2d((ASN1_VALUE *)a, out, &SXNET_it); } SXNET * SXNET_new(void) { return (SXNET *)ASN1_item_new(&SXNET_it); } void SXNET_free(SXNET *a) { ASN1_item_free((ASN1_VALUE *)a, &SXNET_it); } static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, int indent) { long v; char *tmp; SXNETID *id; int i; v = ASN1_INTEGER_get(sx->version); BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v); for (i = 0; i < sk_SXNETID_num(sx->ids); i++) { id = sk_SXNETID_value(sx->ids, i); tmp = i2s_ASN1_INTEGER(NULL, id->zone); BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp); 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)) 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 = NULL; if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) { X509V3error(X509V3_R_ERROR_CONVERTING_ZONE); return 0; } return SXNET_add_id_INTEGER(psx, izone, user, userlen); } /* 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 = NULL; if (!(izone = ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { X509V3error(ERR_R_MALLOC_FAILURE); ASN1_INTEGER_free(izone); return 0; } return SXNET_add_id_INTEGER(psx, izone, user, userlen); } /* 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 || !zone || !user) { X509V3error(X509V3_R_INVALID_NULL_ARGUMENT); return 0; } if (userlen == -1) userlen = strlen(user); if (userlen > 64) { X509V3error(X509V3_R_USER_TOO_LONG); return 0; } if (!*psx) { if (!(sx = SXNET_new())) goto err; if (!ASN1_INTEGER_set(sx->version, 0)) goto err; *psx = sx; } else sx = *psx; if (SXNET_get_id_INTEGER(sx, zone)) { X509V3error(X509V3_R_DUPLICATE_ZONE_ID); return 0; } if (!(id = SXNETID_new())) goto err; if (userlen == -1) userlen = strlen(user); if (!ASN1_STRING_set(id->user, user, userlen)) goto err; if (!sk_SXNETID_push(sx->ids, id)) goto err; id->zone = zone; return 1; err: X509V3error(ERR_R_MALLOC_FAILURE); SXNETID_free(id); SXNET_free(sx); *psx = NULL; return 0; } ASN1_OCTET_STRING * SXNET_get_id_asc(SXNET *sx, const char *zone) { ASN1_INTEGER *izone = NULL; ASN1_OCTET_STRING *oct; if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) { X509V3error(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 = NULL; ASN1_OCTET_STRING *oct; if (!(izone = ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { X509V3error(ERR_R_MALLOC_FAILURE); 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; }