| /* |
| * Copyright 1995-2020 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/safestack.h> |
| #include <openssl/asn1.h> |
| #include <openssl/objects.h> |
| #include <openssl/evp.h> |
| #include <openssl/x509.h> |
| #include <openssl/x509v3.h> |
| #include "x509_local.h" |
| |
| int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x) |
| { |
| if (x == NULL) |
| return 0; |
| return sk_X509_EXTENSION_num(x); |
| } |
| |
| int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid, |
| int lastpos) |
| { |
| ASN1_OBJECT *obj; |
| |
| obj = OBJ_nid2obj(nid); |
| if (obj == NULL) |
| return -2; |
| return X509v3_get_ext_by_OBJ(x, obj, lastpos); |
| } |
| |
| int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk, |
| const ASN1_OBJECT *obj, int lastpos) |
| { |
| int n; |
| X509_EXTENSION *ex; |
| |
| if (sk == NULL) |
| return -1; |
| lastpos++; |
| if (lastpos < 0) |
| lastpos = 0; |
| n = sk_X509_EXTENSION_num(sk); |
| for (; lastpos < n; lastpos++) { |
| ex = sk_X509_EXTENSION_value(sk, lastpos); |
| if (OBJ_cmp(ex->object, obj) == 0) |
| return lastpos; |
| } |
| return -1; |
| } |
| |
| int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit, |
| int lastpos) |
| { |
| int n; |
| X509_EXTENSION *ex; |
| |
| if (sk == NULL) |
| return -1; |
| lastpos++; |
| if (lastpos < 0) |
| lastpos = 0; |
| n = sk_X509_EXTENSION_num(sk); |
| for (; lastpos < n; lastpos++) { |
| ex = sk_X509_EXTENSION_value(sk, lastpos); |
| if (((ex->critical > 0) && crit) || ((ex->critical <= 0) && !crit)) |
| return lastpos; |
| } |
| return -1; |
| } |
| |
| X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc) |
| { |
| if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0) |
| return NULL; |
| else |
| return sk_X509_EXTENSION_value(x, loc); |
| } |
| |
| X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc) |
| { |
| X509_EXTENSION *ret; |
| |
| if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0) |
| return NULL; |
| ret = sk_X509_EXTENSION_delete(x, loc); |
| return ret; |
| } |
| |
| STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x, |
| X509_EXTENSION *ex, int loc) |
| { |
| X509_EXTENSION *new_ex = NULL; |
| int n; |
| STACK_OF(X509_EXTENSION) *sk = NULL; |
| |
| if (x == NULL) { |
| ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER); |
| goto err2; |
| } |
| |
| if (*x == NULL) { |
| if ((sk = sk_X509_EXTENSION_new_null()) == NULL) |
| goto err; |
| } else |
| sk = *x; |
| |
| n = sk_X509_EXTENSION_num(sk); |
| if (loc > n) |
| loc = n; |
| else if (loc < 0) |
| loc = n; |
| |
| if ((new_ex = X509_EXTENSION_dup(ex)) == NULL) |
| goto err2; |
| if (!sk_X509_EXTENSION_insert(sk, new_ex, loc)) |
| goto err; |
| if (*x == NULL) |
| *x = sk; |
| return sk; |
| err: |
| ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
| err2: |
| X509_EXTENSION_free(new_ex); |
| if (x != NULL && *x == NULL) |
| sk_X509_EXTENSION_free(sk); |
| return NULL; |
| } |
| |
| X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid, |
| int crit, |
| ASN1_OCTET_STRING *data) |
| { |
| ASN1_OBJECT *obj; |
| X509_EXTENSION *ret; |
| |
| obj = OBJ_nid2obj(nid); |
| if (obj == NULL) { |
| ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID); |
| return NULL; |
| } |
| ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data); |
| if (ret == NULL) |
| ASN1_OBJECT_free(obj); |
| return ret; |
| } |
| |
| X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex, |
| const ASN1_OBJECT *obj, int crit, |
| ASN1_OCTET_STRING *data) |
| { |
| X509_EXTENSION *ret; |
| |
| if ((ex == NULL) || (*ex == NULL)) { |
| if ((ret = X509_EXTENSION_new()) == NULL) { |
| ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
| return NULL; |
| } |
| } else |
| ret = *ex; |
| |
| if (!X509_EXTENSION_set_object(ret, obj)) |
| goto err; |
| if (!X509_EXTENSION_set_critical(ret, crit)) |
| goto err; |
| if (!X509_EXTENSION_set_data(ret, data)) |
| goto err; |
| |
| if ((ex != NULL) && (*ex == NULL)) |
| *ex = ret; |
| return ret; |
| err: |
| if ((ex == NULL) || (ret != *ex)) |
| X509_EXTENSION_free(ret); |
| return NULL; |
| } |
| |
| int X509_EXTENSION_set_object(X509_EXTENSION *ex, const ASN1_OBJECT *obj) |
| { |
| if ((ex == NULL) || (obj == NULL)) |
| return 0; |
| ASN1_OBJECT_free(ex->object); |
| ex->object = OBJ_dup(obj); |
| return ex->object != NULL; |
| } |
| |
| int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit) |
| { |
| if (ex == NULL) |
| return 0; |
| ex->critical = (crit) ? 0xFF : -1; |
| return 1; |
| } |
| |
| int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data) |
| { |
| int i; |
| |
| if (ex == NULL) |
| return 0; |
| i = ASN1_OCTET_STRING_set(&ex->value, data->data, data->length); |
| if (!i) |
| return 0; |
| return 1; |
| } |
| |
| ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex) |
| { |
| if (ex == NULL) |
| return NULL; |
| return ex->object; |
| } |
| |
| ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex) |
| { |
| if (ex == NULL) |
| return NULL; |
| return &ex->value; |
| } |
| |
| int X509_EXTENSION_get_critical(const X509_EXTENSION *ex) |
| { |
| if (ex == NULL) |
| return 0; |
| if (ex->critical > 0) |
| return 1; |
| return 0; |
| } |