| /* |
| * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the OpenSSL license (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 <string.h> |
| |
| #include <openssl/asn1.h> |
| #include <openssl/bytestring.h> |
| #include <openssl/err.h> |
| #include <openssl/evp.h> |
| #include <openssl/obj.h> |
| #include <openssl/stack.h> |
| #include <openssl/x509.h> |
| |
| #include "../internal.h" |
| #include "internal.h" |
| |
| |
| int X509_NAME_get_text_by_NID(const X509_NAME *name, int nid, char *buf, |
| int len) { |
| const ASN1_OBJECT *obj; |
| |
| obj = OBJ_nid2obj(nid); |
| if (obj == NULL) { |
| return -1; |
| } |
| return (X509_NAME_get_text_by_OBJ(name, obj, buf, len)); |
| } |
| |
| int X509_NAME_get_text_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj, |
| char *buf, int len) { |
| int i = X509_NAME_get_index_by_OBJ(name, obj, -1); |
| if (i < 0) { |
| return -1; |
| } |
| const ASN1_STRING *data = |
| X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i)); |
| unsigned char *text = NULL; |
| int ret = -1; |
| int text_len = ASN1_STRING_to_UTF8(&text, data); |
| // Fail if we could not encode as UTF-8. |
| if (text_len < 0) { |
| goto out; |
| } |
| CBS cbs; |
| CBS_init(&cbs, text, text_len); |
| // Fail if the UTF-8 encoding constains a 0 byte because this is |
| // returned as a C string and callers very often do not check. |
| if (CBS_contains_zero_byte(&cbs)) { |
| goto out; |
| } |
| // We still support the "pass NULL to find out how much" API |
| if (buf != NULL) { |
| if (text_len >= len || len <= 0 || |
| !CBS_copy_bytes(&cbs, (uint8_t *)buf, text_len)) { |
| goto out; |
| } |
| // It must be a C string |
| buf[text_len] = '\0'; |
| } |
| ret = text_len; |
| |
| out: |
| OPENSSL_free(text); |
| return ret; |
| } |
| |
| int X509_NAME_entry_count(const X509_NAME *name) { |
| if (name == NULL) { |
| return 0; |
| } |
| return (int)sk_X509_NAME_ENTRY_num(name->entries); |
| } |
| |
| int X509_NAME_get_index_by_NID(const X509_NAME *name, int nid, int lastpos) { |
| const ASN1_OBJECT *obj; |
| |
| obj = OBJ_nid2obj(nid); |
| if (obj == NULL) { |
| return -2; |
| } |
| return X509_NAME_get_index_by_OBJ(name, obj, lastpos); |
| } |
| |
| // NOTE: you should be passsing -1, not 0 as lastpos |
| int X509_NAME_get_index_by_OBJ(const X509_NAME *name, const ASN1_OBJECT *obj, |
| int lastpos) { |
| if (name == NULL) { |
| return -1; |
| } |
| if (lastpos < 0) { |
| lastpos = -1; |
| } |
| const STACK_OF(X509_NAME_ENTRY) *sk = name->entries; |
| int n = (int)sk_X509_NAME_ENTRY_num(sk); |
| for (lastpos++; lastpos < n; lastpos++) { |
| const X509_NAME_ENTRY *ne = sk_X509_NAME_ENTRY_value(sk, lastpos); |
| if (OBJ_cmp(ne->object, obj) == 0) { |
| return lastpos; |
| } |
| } |
| return -1; |
| } |
| |
| X509_NAME_ENTRY *X509_NAME_get_entry(const X509_NAME *name, int loc) { |
| if (name == NULL || loc < 0 || |
| sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc) { |
| return NULL; |
| } else { |
| return (sk_X509_NAME_ENTRY_value(name->entries, loc)); |
| } |
| } |
| |
| X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc) { |
| if (name == NULL || loc < 0 || |
| sk_X509_NAME_ENTRY_num(name->entries) <= (size_t)loc) { |
| return NULL; |
| } |
| |
| STACK_OF(X509_NAME_ENTRY) *sk = name->entries; |
| X509_NAME_ENTRY *ret = sk_X509_NAME_ENTRY_delete(sk, loc); |
| size_t n = sk_X509_NAME_ENTRY_num(sk); |
| name->modified = 1; |
| if ((size_t)loc == n) { |
| return ret; |
| } |
| |
| int set_prev; |
| if (loc != 0) { |
| set_prev = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set; |
| } else { |
| set_prev = ret->set - 1; |
| } |
| int set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set; |
| |
| // If we removed a singleton RDN, update the RDN indices so they are |
| // consecutive again. |
| if (set_prev + 1 < set_next) { |
| for (size_t i = loc; i < n; i++) { |
| sk_X509_NAME_ENTRY_value(sk, i)->set--; |
| } |
| } |
| return ret; |
| } |
| |
| int X509_NAME_add_entry_by_OBJ(X509_NAME *name, const ASN1_OBJECT *obj, |
| int type, const unsigned char *bytes, |
| ossl_ssize_t len, int loc, int set) { |
| X509_NAME_ENTRY *ne = |
| X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len); |
| if (!ne) { |
| return 0; |
| } |
| int ret = X509_NAME_add_entry(name, ne, loc, set); |
| X509_NAME_ENTRY_free(ne); |
| return ret; |
| } |
| |
| int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type, |
| const unsigned char *bytes, ossl_ssize_t len, |
| int loc, int set) { |
| X509_NAME_ENTRY *ne = |
| X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len); |
| if (!ne) { |
| return 0; |
| } |
| int ret = X509_NAME_add_entry(name, ne, loc, set); |
| X509_NAME_ENTRY_free(ne); |
| return ret; |
| } |
| |
| int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type, |
| const unsigned char *bytes, ossl_ssize_t len, |
| int loc, int set) { |
| X509_NAME_ENTRY *ne = |
| X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len); |
| if (!ne) { |
| return 0; |
| } |
| int ret = X509_NAME_add_entry(name, ne, loc, set); |
| X509_NAME_ENTRY_free(ne); |
| return ret; |
| } |
| |
| // if set is -1, append to previous set, 0 'a new one', and 1, prepend to the |
| // guy we are about to stomp on. |
| int X509_NAME_add_entry(X509_NAME *name, const X509_NAME_ENTRY *entry, int loc, |
| int set) { |
| X509_NAME_ENTRY *new_name = NULL; |
| int i, inc; |
| STACK_OF(X509_NAME_ENTRY) *sk; |
| |
| if (name == NULL) { |
| return 0; |
| } |
| sk = name->entries; |
| int n = (int)sk_X509_NAME_ENTRY_num(sk); |
| if (loc > n) { |
| loc = n; |
| } else if (loc < 0) { |
| loc = n; |
| } |
| |
| inc = (set == 0); |
| name->modified = 1; |
| |
| if (set == -1) { |
| if (loc == 0) { |
| set = 0; |
| inc = 1; |
| } else { |
| set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set; |
| } |
| } else { // if (set >= 0) |
| |
| if (loc >= n) { |
| if (loc != 0) { |
| set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set + 1; |
| } else { |
| set = 0; |
| } |
| } else { |
| set = sk_X509_NAME_ENTRY_value(sk, loc)->set; |
| } |
| } |
| |
| if ((new_name = X509_NAME_ENTRY_dup(entry)) == NULL) { |
| goto err; |
| } |
| new_name->set = set; |
| if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) { |
| goto err; |
| } |
| if (inc) { |
| n = (int)sk_X509_NAME_ENTRY_num(sk); |
| for (i = loc + 1; i < n; i++) { |
| sk_X509_NAME_ENTRY_value(sk, i)->set += 1; |
| } |
| } |
| return 1; |
| err: |
| if (new_name != NULL) { |
| X509_NAME_ENTRY_free(new_name); |
| } |
| return 0; |
| } |
| |
| X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne, |
| const char *field, int type, |
| const unsigned char *bytes, |
| ossl_ssize_t len) { |
| ASN1_OBJECT *obj; |
| X509_NAME_ENTRY *nentry; |
| |
| obj = OBJ_txt2obj(field, 0); |
| if (obj == NULL) { |
| OPENSSL_PUT_ERROR(X509, X509_R_INVALID_FIELD_NAME); |
| ERR_add_error_data(2, "name=", field); |
| return NULL; |
| } |
| nentry = X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len); |
| ASN1_OBJECT_free(obj); |
| return nentry; |
| } |
| |
| X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid, |
| int type, |
| const unsigned char *bytes, |
| ossl_ssize_t len) { |
| const ASN1_OBJECT *obj = OBJ_nid2obj(nid); |
| if (obj == NULL) { |
| OPENSSL_PUT_ERROR(X509, X509_R_UNKNOWN_NID); |
| return NULL; |
| } |
| return X509_NAME_ENTRY_create_by_OBJ(ne, obj, type, bytes, len); |
| } |
| |
| X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne, |
| const ASN1_OBJECT *obj, int type, |
| const unsigned char *bytes, |
| ossl_ssize_t len) { |
| X509_NAME_ENTRY *ret; |
| |
| if ((ne == NULL) || (*ne == NULL)) { |
| if ((ret = X509_NAME_ENTRY_new()) == NULL) { |
| return NULL; |
| } |
| } else { |
| ret = *ne; |
| } |
| |
| if (!X509_NAME_ENTRY_set_object(ret, obj)) { |
| goto err; |
| } |
| if (!X509_NAME_ENTRY_set_data(ret, type, bytes, len)) { |
| goto err; |
| } |
| |
| if ((ne != NULL) && (*ne == NULL)) { |
| *ne = ret; |
| } |
| return ret; |
| err: |
| if ((ne == NULL) || (ret != *ne)) { |
| X509_NAME_ENTRY_free(ret); |
| } |
| return NULL; |
| } |
| |
| int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj) { |
| if ((ne == NULL) || (obj == NULL)) { |
| OPENSSL_PUT_ERROR(X509, ERR_R_PASSED_NULL_PARAMETER); |
| return 0; |
| } |
| ASN1_OBJECT_free(ne->object); |
| ne->object = OBJ_dup(obj); |
| return ((ne->object == NULL) ? 0 : 1); |
| } |
| |
| int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type, |
| const unsigned char *bytes, ossl_ssize_t len) { |
| if ((ne == NULL) || ((bytes == NULL) && (len != 0))) { |
| return 0; |
| } |
| if ((type > 0) && (type & MBSTRING_FLAG)) { |
| return ASN1_STRING_set_by_NID(&ne->value, bytes, len, type, |
| OBJ_obj2nid(ne->object)) |
| ? 1 |
| : 0; |
| } |
| if (len < 0) { |
| len = strlen((const char *)bytes); |
| } |
| if (!ASN1_STRING_set(ne->value, bytes, len)) { |
| return 0; |
| } |
| if (type != V_ASN1_UNDEF) { |
| ne->value->type = type; |
| } |
| return 1; |
| } |
| |
| ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne) { |
| if (ne == NULL) { |
| return NULL; |
| } |
| return ne->object; |
| } |
| |
| ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne) { |
| if (ne == NULL) { |
| return NULL; |
| } |
| return ne->value; |
| } |