/* $OpenBSD: x509name.c,v 1.11 2014/07/10 13:58:23 jsing Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * 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 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 acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS 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 AUTHOR OR 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. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ #include #include #include #include #include #include #include #include int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf, int len) { 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(X509_NAME *name, ASN1_OBJECT *obj, char *buf, int len) { int i; ASN1_STRING *data; i = X509_NAME_get_index_by_OBJ(name, obj, -1); if (i < 0) return (-1); data = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, i)); i = (data->length > (len - 1)) ? (len - 1) : data->length; if (buf == NULL) return (data->length); memcpy(buf, data->data, i); buf[i] = '\0'; return (i); } int X509_NAME_entry_count(X509_NAME *name) { if (name == NULL) return (0); return (sk_X509_NAME_ENTRY_num(name->entries)); } int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos) { 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(X509_NAME *name, ASN1_OBJECT *obj, int lastpos) { int n; X509_NAME_ENTRY *ne; STACK_OF(X509_NAME_ENTRY) *sk; if (name == NULL) return (-1); if (lastpos < 0) lastpos = -1; sk = name->entries; n = sk_X509_NAME_ENTRY_num(sk); for (lastpos++; lastpos < n; lastpos++) { 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(X509_NAME *name, int loc) { if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc || loc < 0) return (NULL); else return (sk_X509_NAME_ENTRY_value(name->entries, loc)); } X509_NAME_ENTRY * X509_NAME_delete_entry(X509_NAME *name, int loc) { X509_NAME_ENTRY *ret; int i, n, set_prev, set_next; STACK_OF(X509_NAME_ENTRY) *sk; if (name == NULL || sk_X509_NAME_ENTRY_num(name->entries) <= loc || loc < 0) return (NULL); sk = name->entries; ret = sk_X509_NAME_ENTRY_delete(sk, loc); n = sk_X509_NAME_ENTRY_num(sk); name->modified = 1; if (loc == n) return (ret); /* else we need to fixup the set field */ if (loc != 0) set_prev = (sk_X509_NAME_ENTRY_value(sk, loc - 1))->set; else set_prev = ret->set - 1; set_next = sk_X509_NAME_ENTRY_value(sk, loc)->set; /* set_prev is the previous set * set is the current set * set_next is the following * prev 1 1 1 1 1 1 1 1 * set 1 1 2 2 * next 1 1 2 2 2 2 3 2 * so basically only if prev and next differ by 2, then * re-number down by 1 */ if (set_prev + 1 < set_next) for (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, ASN1_OBJECT *obj, int type, unsigned char *bytes, int len, int loc, int set) { X509_NAME_ENTRY *ne; int ret; ne = X509_NAME_ENTRY_create_by_OBJ(NULL, obj, type, bytes, len); if (!ne) return 0; 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, unsigned char *bytes, int len, int loc, int set) { X509_NAME_ENTRY *ne; int ret; ne = X509_NAME_ENTRY_create_by_NID(NULL, nid, type, bytes, len); if (!ne) return 0; 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, int len, int loc, int set) { X509_NAME_ENTRY *ne; int ret; ne = X509_NAME_ENTRY_create_by_txt(NULL, field, type, bytes, len); if (!ne) return 0; 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, X509_NAME_ENTRY *ne, int loc, int set) { X509_NAME_ENTRY *new_name = NULL; int n, i, inc; STACK_OF(X509_NAME_ENTRY) *sk; if (name == NULL) return (0); sk = name->entries; n = sk_X509_NAME_ENTRY_num(sk); if (loc > n) loc = n; else if (loc < 0) loc = n; name->modified = 1; if (set == -1) { if (loc == 0) { set = 0; inc = 1; } else { set = sk_X509_NAME_ENTRY_value(sk, loc - 1)->set; inc = 0; } } 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; inc = (set == 0) ? 1 : 0; } if ((new_name = X509_NAME_ENTRY_dup(ne)) == NULL) goto err; new_name->set = set; if (!sk_X509_NAME_ENTRY_insert(sk, new_name, loc)) { X509err(X509_F_X509_NAME_ADD_ENTRY, ERR_R_MALLOC_FAILURE); goto err; } if (inc) { n = sk_X509_NAME_ENTRY_num(sk); for (i = loc + 1; i < n; i++) sk_X509_NAME_ENTRY_value(sk, i - 1)->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, int len) { ASN1_OBJECT *obj; X509_NAME_ENTRY *nentry; obj = OBJ_txt2obj(field, 0); if (obj == NULL) { X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_TXT, X509_R_INVALID_FIELD_NAME); ERR_asprintf_error_data("name=%s", 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, unsigned char *bytes, int len) { ASN1_OBJECT *obj; X509_NAME_ENTRY *nentry; obj = OBJ_nid2obj(nid); if (obj == NULL) { X509err(X509_F_X509_NAME_ENTRY_CREATE_BY_NID, X509_R_UNKNOWN_NID); 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_OBJ(X509_NAME_ENTRY **ne, ASN1_OBJECT *obj, int type, const unsigned char *bytes, int 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, ASN1_OBJECT *obj) { if ((ne == NULL) || (obj == NULL)) { X509err(X509_F_X509_NAME_ENTRY_SET_OBJECT, 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, int len) { int i; 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); i = ASN1_STRING_set(ne->value, bytes, len); if (!i) return (0); if (type != V_ASN1_UNDEF) { if (type == V_ASN1_APP_CHOOSE) ne->value->type = ASN1_PRINTABLE_type(bytes, len); else ne->value->type = type; } return (1); } ASN1_OBJECT * X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne) { if (ne == NULL) return (NULL); return (ne->object); } ASN1_STRING * X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne) { if (ne == NULL) return (NULL); return (ne->value); }