| /* v3_alt.c */ |
| /* |
| * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| * project. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1999-2003 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 <stdio.h> |
| #include <string.h> |
| |
| #include <openssl/conf.h> |
| #include <openssl/err.h> |
| #include <openssl/mem.h> |
| #include <openssl/obj.h> |
| #include <openssl/x509v3.h> |
| |
| #include "internal.h" |
| |
| |
| static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, |
| STACK_OF(CONF_VALUE) *nval); |
| static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, |
| STACK_OF(CONF_VALUE) *nval); |
| static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p); |
| static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens); |
| static int do_othername(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx); |
| static int do_dirname(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx); |
| |
| const X509V3_EXT_METHOD v3_alt[] = { |
| {NID_subject_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES), |
| 0, 0, 0, 0, |
| 0, 0, |
| (X509V3_EXT_I2V) i2v_GENERAL_NAMES, |
| (X509V3_EXT_V2I)v2i_subject_alt, |
| NULL, NULL, NULL}, |
| |
| {NID_issuer_alt_name, 0, ASN1_ITEM_ref(GENERAL_NAMES), |
| 0, 0, 0, 0, |
| 0, 0, |
| (X509V3_EXT_I2V) i2v_GENERAL_NAMES, |
| (X509V3_EXT_V2I)v2i_issuer_alt, |
| NULL, NULL, NULL}, |
| |
| {NID_certificate_issuer, 0, ASN1_ITEM_ref(GENERAL_NAMES), |
| 0, 0, 0, 0, |
| 0, 0, |
| (X509V3_EXT_I2V) i2v_GENERAL_NAMES, |
| NULL, NULL, NULL, NULL}, |
| }; |
| |
| STACK_OF(CONF_VALUE) *i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method, |
| GENERAL_NAMES *gens, |
| STACK_OF(CONF_VALUE) *ret) |
| { |
| size_t i; |
| GENERAL_NAME *gen; |
| for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) { |
| gen = sk_GENERAL_NAME_value(gens, i); |
| ret = i2v_GENERAL_NAME(method, gen, ret); |
| } |
| if (!ret) |
| return sk_CONF_VALUE_new_null(); |
| return ret; |
| } |
| |
| STACK_OF(CONF_VALUE) *i2v_GENERAL_NAME(X509V3_EXT_METHOD *method, |
| GENERAL_NAME *gen, |
| STACK_OF(CONF_VALUE) *ret) |
| { |
| unsigned char *p; |
| char oline[256], htmp[5]; |
| int i; |
| switch (gen->type) { |
| case GEN_OTHERNAME: |
| if (!X509V3_add_value("othername", "<unsupported>", &ret)) |
| return NULL; |
| break; |
| |
| case GEN_X400: |
| if (!X509V3_add_value("X400Name", "<unsupported>", &ret)) |
| return NULL; |
| break; |
| |
| case GEN_EDIPARTY: |
| if (!X509V3_add_value("EdiPartyName", "<unsupported>", &ret)) |
| return NULL; |
| break; |
| |
| case GEN_EMAIL: |
| if (!X509V3_add_value_uchar("email", gen->d.ia5->data, &ret)) |
| return NULL; |
| break; |
| |
| case GEN_DNS: |
| if (!X509V3_add_value_uchar("DNS", gen->d.ia5->data, &ret)) |
| return NULL; |
| break; |
| |
| case GEN_URI: |
| if (!X509V3_add_value_uchar("URI", gen->d.ia5->data, &ret)) |
| return NULL; |
| break; |
| |
| case GEN_DIRNAME: |
| if (X509_NAME_oneline(gen->d.dirn, oline, 256) == NULL |
| || !X509V3_add_value("DirName", oline, &ret)) |
| return NULL; |
| break; |
| |
| case GEN_IPADD: |
| p = gen->d.ip->data; |
| if (gen->d.ip->length == 4) |
| BIO_snprintf(oline, sizeof oline, |
| "%d.%d.%d.%d", p[0], p[1], p[2], p[3]); |
| else if (gen->d.ip->length == 16) { |
| oline[0] = 0; |
| for (i = 0; i < 8; i++) { |
| BIO_snprintf(htmp, sizeof htmp, "%X", p[0] << 8 | p[1]); |
| p += 2; |
| BUF_strlcat(oline, htmp, sizeof(oline)); |
| if (i != 7) |
| BUF_strlcat(oline, ":", sizeof(oline)); |
| } |
| } else { |
| if (!X509V3_add_value("IP Address", "<invalid>", &ret)) |
| return NULL; |
| break; |
| } |
| if (!X509V3_add_value("IP Address", oline, &ret)) |
| return NULL; |
| break; |
| |
| case GEN_RID: |
| i2t_ASN1_OBJECT(oline, 256, gen->d.rid); |
| if (!X509V3_add_value("Registered ID", oline, &ret)) |
| return NULL; |
| break; |
| } |
| return ret; |
| } |
| |
| int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen) |
| { |
| unsigned char *p; |
| int i; |
| switch (gen->type) { |
| case GEN_OTHERNAME: |
| BIO_printf(out, "othername:<unsupported>"); |
| break; |
| |
| case GEN_X400: |
| BIO_printf(out, "X400Name:<unsupported>"); |
| break; |
| |
| case GEN_EDIPARTY: |
| /* Maybe fix this: it is supported now */ |
| BIO_printf(out, "EdiPartyName:<unsupported>"); |
| break; |
| |
| case GEN_EMAIL: |
| BIO_printf(out, "email:"); |
| ASN1_STRING_print(out, gen->d.ia5); |
| break; |
| |
| case GEN_DNS: |
| BIO_printf(out, "DNS:"); |
| ASN1_STRING_print(out, gen->d.ia5); |
| break; |
| |
| case GEN_URI: |
| BIO_printf(out, "URI:"); |
| ASN1_STRING_print(out, gen->d.ia5); |
| break; |
| |
| case GEN_DIRNAME: |
| BIO_printf(out, "DirName: "); |
| X509_NAME_print_ex(out, gen->d.dirn, 0, XN_FLAG_ONELINE); |
| break; |
| |
| case GEN_IPADD: |
| p = gen->d.ip->data; |
| if (gen->d.ip->length == 4) |
| BIO_printf(out, "IP Address:%d.%d.%d.%d", p[0], p[1], p[2], p[3]); |
| else if (gen->d.ip->length == 16) { |
| BIO_printf(out, "IP Address"); |
| for (i = 0; i < 8; i++) { |
| BIO_printf(out, ":%X", p[0] << 8 | p[1]); |
| p += 2; |
| } |
| BIO_puts(out, "\n"); |
| } else { |
| BIO_printf(out, "IP Address:<invalid>"); |
| break; |
| } |
| break; |
| |
| case GEN_RID: |
| BIO_printf(out, "Registered ID"); |
| i2a_ASN1_OBJECT(out, gen->d.rid); |
| break; |
| } |
| return 1; |
| } |
| |
| static GENERAL_NAMES *v2i_issuer_alt(X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, |
| STACK_OF(CONF_VALUE) *nval) |
| { |
| GENERAL_NAMES *gens = NULL; |
| CONF_VALUE *cnf; |
| size_t i; |
| if (!(gens = sk_GENERAL_NAME_new_null())) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { |
| cnf = sk_CONF_VALUE_value(nval, i); |
| if (!x509v3_name_cmp(cnf->name, "issuer") && cnf->value && |
| !strcmp(cnf->value, "copy")) { |
| if (!copy_issuer(ctx, gens)) |
| goto err; |
| } else { |
| GENERAL_NAME *gen; |
| if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) |
| goto err; |
| sk_GENERAL_NAME_push(gens, gen); |
| } |
| } |
| return gens; |
| err: |
| sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); |
| return NULL; |
| } |
| |
| /* Append subject altname of issuer to issuer alt name of subject */ |
| |
| static int copy_issuer(X509V3_CTX *ctx, GENERAL_NAMES *gens) |
| { |
| GENERAL_NAMES *ialt; |
| GENERAL_NAME *gen; |
| X509_EXTENSION *ext; |
| int i; |
| size_t j; |
| if (ctx && (ctx->flags == CTX_TEST)) |
| return 1; |
| if (!ctx || !ctx->issuer_cert) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_ISSUER_DETAILS); |
| goto err; |
| } |
| i = X509_get_ext_by_NID(ctx->issuer_cert, NID_subject_alt_name, -1); |
| if (i < 0) |
| return 1; |
| if (!(ext = X509_get_ext(ctx->issuer_cert, i)) || |
| !(ialt = X509V3_EXT_d2i(ext))) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_ISSUER_DECODE_ERROR); |
| goto err; |
| } |
| |
| for (j = 0; j < sk_GENERAL_NAME_num(ialt); j++) { |
| gen = sk_GENERAL_NAME_value(ialt, j); |
| if (!sk_GENERAL_NAME_push(gens, gen)) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| } |
| sk_GENERAL_NAME_free(ialt); |
| |
| return 1; |
| |
| err: |
| return 0; |
| |
| } |
| |
| static GENERAL_NAMES *v2i_subject_alt(X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, |
| STACK_OF(CONF_VALUE) *nval) |
| { |
| GENERAL_NAMES *gens = NULL; |
| CONF_VALUE *cnf; |
| size_t i; |
| if (!(gens = sk_GENERAL_NAME_new_null())) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { |
| cnf = sk_CONF_VALUE_value(nval, i); |
| if (!x509v3_name_cmp(cnf->name, "email") && cnf->value && |
| !strcmp(cnf->value, "copy")) { |
| if (!copy_email(ctx, gens, 0)) |
| goto err; |
| } else if (!x509v3_name_cmp(cnf->name, "email") && cnf->value && |
| !strcmp(cnf->value, "move")) { |
| if (!copy_email(ctx, gens, 1)) |
| goto err; |
| } else { |
| GENERAL_NAME *gen; |
| if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) |
| goto err; |
| sk_GENERAL_NAME_push(gens, gen); |
| } |
| } |
| return gens; |
| err: |
| sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); |
| return NULL; |
| } |
| |
| /* |
| * Copy any email addresses in a certificate or request to GENERAL_NAMES |
| */ |
| |
| static int copy_email(X509V3_CTX *ctx, GENERAL_NAMES *gens, int move_p) |
| { |
| X509_NAME *nm; |
| ASN1_IA5STRING *email = NULL; |
| X509_NAME_ENTRY *ne; |
| GENERAL_NAME *gen = NULL; |
| int i; |
| if (ctx != NULL && ctx->flags == CTX_TEST) |
| return 1; |
| if (!ctx || (!ctx->subject_cert && !ctx->subject_req)) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_SUBJECT_DETAILS); |
| goto err; |
| } |
| /* Find the subject name */ |
| if (ctx->subject_cert) |
| nm = X509_get_subject_name(ctx->subject_cert); |
| else |
| nm = X509_REQ_get_subject_name(ctx->subject_req); |
| |
| /* Now add any email address(es) to STACK */ |
| i = -1; |
| while ((i = X509_NAME_get_index_by_NID(nm, |
| NID_pkcs9_emailAddress, i)) >= 0) { |
| ne = X509_NAME_get_entry(nm, i); |
| email = M_ASN1_IA5STRING_dup(X509_NAME_ENTRY_get_data(ne)); |
| if (move_p) { |
| X509_NAME_delete_entry(nm, i); |
| X509_NAME_ENTRY_free(ne); |
| i--; |
| } |
| if (!email || !(gen = GENERAL_NAME_new())) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| gen->d.ia5 = email; |
| email = NULL; |
| gen->type = GEN_EMAIL; |
| if (!sk_GENERAL_NAME_push(gens, gen)) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| gen = NULL; |
| } |
| |
| return 1; |
| |
| err: |
| GENERAL_NAME_free(gen); |
| M_ASN1_IA5STRING_free(email); |
| return 0; |
| |
| } |
| |
| GENERAL_NAMES *v2i_GENERAL_NAMES(const X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval) |
| { |
| GENERAL_NAME *gen; |
| GENERAL_NAMES *gens = NULL; |
| CONF_VALUE *cnf; |
| size_t i; |
| if (!(gens = sk_GENERAL_NAME_new_null())) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { |
| cnf = sk_CONF_VALUE_value(nval, i); |
| if (!(gen = v2i_GENERAL_NAME(method, ctx, cnf))) |
| goto err; |
| sk_GENERAL_NAME_push(gens, gen); |
| } |
| return gens; |
| err: |
| sk_GENERAL_NAME_pop_free(gens, GENERAL_NAME_free); |
| return NULL; |
| } |
| |
| GENERAL_NAME *v2i_GENERAL_NAME(const X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, CONF_VALUE *cnf) |
| { |
| return v2i_GENERAL_NAME_ex(NULL, method, ctx, cnf, 0); |
| } |
| |
| GENERAL_NAME *a2i_GENERAL_NAME(GENERAL_NAME *out, |
| const X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, int gen_type, char *value, |
| int is_nc) |
| { |
| char is_string = 0; |
| GENERAL_NAME *gen = NULL; |
| |
| if (!value) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_MISSING_VALUE); |
| return NULL; |
| } |
| |
| if (out) |
| gen = out; |
| else { |
| gen = GENERAL_NAME_new(); |
| if (gen == NULL) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| } |
| |
| switch (gen_type) { |
| case GEN_URI: |
| case GEN_EMAIL: |
| case GEN_DNS: |
| is_string = 1; |
| break; |
| |
| case GEN_RID: |
| { |
| ASN1_OBJECT *obj; |
| if (!(obj = OBJ_txt2obj(value, 0))) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_BAD_OBJECT); |
| ERR_add_error_data(2, "value=", value); |
| goto err; |
| } |
| gen->d.rid = obj; |
| } |
| break; |
| |
| case GEN_IPADD: |
| if (is_nc) |
| gen->d.ip = a2i_IPADDRESS_NC(value); |
| else |
| gen->d.ip = a2i_IPADDRESS(value); |
| if (gen->d.ip == NULL) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_BAD_IP_ADDRESS); |
| ERR_add_error_data(2, "value=", value); |
| goto err; |
| } |
| break; |
| |
| case GEN_DIRNAME: |
| if (!do_dirname(gen, value, ctx)) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_DIRNAME_ERROR); |
| goto err; |
| } |
| break; |
| |
| case GEN_OTHERNAME: |
| if (!do_othername(gen, value, ctx)) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_OTHERNAME_ERROR); |
| goto err; |
| } |
| break; |
| default: |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_UNSUPPORTED_TYPE); |
| goto err; |
| } |
| |
| if (is_string) { |
| if (!(gen->d.ia5 = M_ASN1_IA5STRING_new()) || |
| !ASN1_STRING_set(gen->d.ia5, (unsigned char *)value, |
| strlen(value))) { |
| OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); |
| goto err; |
| } |
| } |
| |
| gen->type = gen_type; |
| |
| return gen; |
| |
| err: |
| if (!out) |
| GENERAL_NAME_free(gen); |
| return NULL; |
| } |
| |
| GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out, |
| const X509V3_EXT_METHOD *method, |
| X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc) |
| { |
| int type; |
| |
| char *name, *value; |
| |
| name = cnf->name; |
| value = cnf->value; |
| |
| if (!value) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_MISSING_VALUE); |
| return NULL; |
| } |
| |
| if (!x509v3_name_cmp(name, "email")) |
| type = GEN_EMAIL; |
| else if (!x509v3_name_cmp(name, "URI")) |
| type = GEN_URI; |
| else if (!x509v3_name_cmp(name, "DNS")) |
| type = GEN_DNS; |
| else if (!x509v3_name_cmp(name, "RID")) |
| type = GEN_RID; |
| else if (!x509v3_name_cmp(name, "IP")) |
| type = GEN_IPADD; |
| else if (!x509v3_name_cmp(name, "dirName")) |
| type = GEN_DIRNAME; |
| else if (!x509v3_name_cmp(name, "otherName")) |
| type = GEN_OTHERNAME; |
| else { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_UNSUPPORTED_OPTION); |
| ERR_add_error_data(2, "name=", name); |
| return NULL; |
| } |
| |
| return a2i_GENERAL_NAME(out, method, ctx, type, value, is_nc); |
| |
| } |
| |
| static int do_othername(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx) |
| { |
| char *objtmp = NULL, *p; |
| int objlen; |
| if (!(p = strchr(value, ';'))) |
| return 0; |
| if (!(gen->d.otherName = OTHERNAME_new())) |
| return 0; |
| /* |
| * Free this up because we will overwrite it. no need to free type_id |
| * because it is static |
| */ |
| ASN1_TYPE_free(gen->d.otherName->value); |
| if (!(gen->d.otherName->value = ASN1_generate_v3(p + 1, ctx))) |
| return 0; |
| objlen = p - value; |
| objtmp = OPENSSL_malloc(objlen + 1); |
| if (objtmp == NULL) |
| return 0; |
| BUF_strlcpy(objtmp, value, objlen + 1); |
| gen->d.otherName->type_id = OBJ_txt2obj(objtmp, 0); |
| OPENSSL_free(objtmp); |
| if (!gen->d.otherName->type_id) |
| return 0; |
| return 1; |
| } |
| |
| static int do_dirname(GENERAL_NAME *gen, char *value, X509V3_CTX *ctx) |
| { |
| int ret = 0; |
| STACK_OF(CONF_VALUE) *sk = NULL; |
| X509_NAME *nm = X509_NAME_new(); |
| if (nm == NULL) |
| goto err; |
| sk = X509V3_get_section(ctx, value); |
| if (sk == NULL) { |
| OPENSSL_PUT_ERROR(X509V3, X509V3_R_SECTION_NOT_FOUND); |
| ERR_add_error_data(2, "section=", value); |
| goto err; |
| } |
| /* FIXME: should allow other character types... */ |
| if (!X509V3_NAME_from_section(nm, sk, MBSTRING_ASC)) |
| goto err; |
| gen->d.dirn = nm; |
| ret = 1; |
| |
| err: |
| if (!ret) |
| X509_NAME_free(nm); |
| X509V3_section_free(ctx, sk); |
| return ret; |
| } |
