1530 lines
		
	
	
		
			42 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1530 lines
		
	
	
		
			42 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2004 - 2009 Kungliga Tekniska Högskolan
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|  * (Royal Institute of Technology, Stockholm, Sweden).
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|  * All rights reserved.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions
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|  * are met:
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|  *
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|  * 1. Redistributions of source code must retain the above copyright
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|  *    notice, this list of conditions and the following disclaimer.
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|  *
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|  * 2. Redistributions in binary form must reproduce the above copyright
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|  *    notice, this list of conditions and the following disclaimer in the
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|  *    documentation and/or other materials provided with the distribution.
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|  *
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|  * 3. Neither the name of the Institute nor the names of its contributors
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|  *    may be used to endorse or promote products derived from this software
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|  *    without specific prior written permission.
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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|  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | |
|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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|  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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|  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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|  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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|  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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|  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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|  * SUCH DAMAGE.
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|  */
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| 
 | |
| #include "hx_locl.h"
 | |
| #include <wind.h>
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| #include "char_map.h"
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| 
 | |
| /**
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|  * @page page_name PKIX/X.509 Names
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|  *
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|  * There are several names in PKIX/X.509, GeneralName and Name.
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|  *
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|  * A Name consists of an ordered list of Relative Distinguished Names
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|  * (RDN). Each RDN consists of an unordered list of typed strings. The
 | |
|  * types are defined by OID and have long and short description. For
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|  * example id-at-commonName (2.5.4.3) have the long name CommonName
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|  * and short name CN. The string itself can be of several encoding,
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|  * UTF8, UTF16, Teltex string, etc. The type limit what encoding
 | |
|  * should be used.
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|  *
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|  * GeneralName is a broader nametype that can contains al kind of
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|  * stuff like Name, IP addresses, partial Name, etc.
 | |
|  *
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|  * Name is mapped into a hx509_name object.
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|  *
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|  * Parse and string name into a hx509_name object with hx509_parse_name(),
 | |
|  * make it back into string representation with hx509_name_to_string().
 | |
|  *
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|  * Name string are defined rfc2253, rfc1779 and X.501.
 | |
|  *
 | |
|  * See the library functions here: @ref hx509_name
 | |
|  */
 | |
| 
 | |
| static const struct {
 | |
|     const char *n;
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|     const heim_oid *o;
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|     int type_choice; /* Preference for DirectoryString choice; 0 -> no pref */
 | |
|     wind_profile_flags flags;
 | |
|     /*
 | |
|      * RFC52380 imposes maximum lengths for some strings in Names.  These are
 | |
|      * ASN.1 size limits.  We should implement these in our copy of the PKIX
 | |
|      * ASN.1 module.  For now we treat them as maximum byte counts rather than
 | |
|      * maximum character counts, and we encode and enforce them here.
 | |
|      *
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|      * 0 -> no max
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|      *
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|      * Some of these attributes aren't of type DirectoryString, so our
 | |
|      * type_choice isn't really correct.  We're not really set up for
 | |
|      * attributes whose types aren't DirectoryString or one of its choice arms'
 | |
|      * type, much less are we set up for non-string attribute value types.
 | |
|      */
 | |
|     size_t max_bytes;
 | |
| } no[] = {
 | |
|     { "C", &asn1_oid_id_at_countryName,
 | |
|         choice_DirectoryString_printableString, 0, 2 },
 | |
|     { "CN", &asn1_oid_id_at_commonName, 0, 0, ub_common_name },
 | |
|     { "DC", &asn1_oid_id_domainComponent, choice_DirectoryString_ia5String,
 | |
|         0, 63 }, /* DNS label */
 | |
|     { "L", &asn1_oid_id_at_localityName, 0, 0, ub_locality_name },
 | |
|     { "O", &asn1_oid_id_at_organizationName, 0, 0, ub_organization_name },
 | |
|     { "OU", &asn1_oid_id_at_organizationalUnitName, 0, 0,
 | |
|         ub_organizational_unit_name },
 | |
|     { "S", &asn1_oid_id_at_stateOrProvinceName, 0, 0, ub_state_name },
 | |
|     { "STREET", &asn1_oid_id_at_streetAddress, 0, 0, 0 }, /* ENOTSUP */
 | |
|     { "UID", &asn1_oid_id_Userid, 0, 0, ub_numeric_user_id_length },
 | |
|     { "emailAddress", &asn1_oid_id_pkcs9_emailAddress,
 | |
|         choice_DirectoryString_ia5String, 0, ub_emailaddress_length },
 | |
|     /* This is for DevID certificates and maybe others */
 | |
|     { "serialNumber", &asn1_oid_id_at_serialNumber, 0, 0, ub_serial_number },
 | |
|     /* These are for TPM 2.0 Endorsement Key Certificates (EKCerts) */
 | |
|     { "TPMManufacturer", &asn1_oid_tcg_at_tpmManufacturer, 0, 0,
 | |
|         ub_emailaddress_length },
 | |
|     { "TPMModel", &asn1_oid_tcg_at_tpmModel, 0, 0, ub_emailaddress_length },
 | |
|     { "TPMVersion", &asn1_oid_tcg_at_tpmVersion, 0, 0, ub_emailaddress_length },
 | |
| };
 | |
| 
 | |
| static char *
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| quote_string(const char *f, size_t len, int flags, size_t *rlen)
 | |
| {
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|     size_t i, j, tolen;
 | |
|     const unsigned char *from = (const unsigned char *)f;
 | |
|     unsigned char *to;
 | |
| 
 | |
|     tolen = len * 3 + 1;
 | |
|     to = malloc(tolen);
 | |
|     if (to == NULL)
 | |
| 	return NULL;
 | |
| 
 | |
|     for (i = 0, j = 0; i < len; i++) {
 | |
| 	unsigned char map = char_map[from[i]] & flags;
 | |
| 	if (i == 0 && (map & Q_RFC2253_QUOTE_FIRST)) {
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| 	    to[j++] = '\\';
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| 	    to[j++] = from[i];
 | |
| 	} else if ((i + 1) == len && (map & Q_RFC2253_QUOTE_LAST)) {
 | |
| 
 | |
| 	    to[j++] = '\\';
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| 	    to[j++] = from[i];
 | |
| 	} else if (map & Q_RFC2253_QUOTE) {
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| 	    to[j++] = '\\';
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| 	    to[j++] = from[i];
 | |
| 	} else if (map & Q_RFC2253_HEX) {
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| 	    int l = snprintf((char *)&to[j], tolen - j - 1,
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| 			     "#%02x", (unsigned char)from[i]);
 | |
| 	    j += l;
 | |
| 	} else {
 | |
| 	    to[j++] = from[i];
 | |
| 	}
 | |
|     }
 | |
|     to[j] = '\0';
 | |
|     assert(j < tolen);
 | |
|     *rlen = j;
 | |
|     return (char *)to;
 | |
| }
 | |
| 
 | |
| 
 | |
| static int
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| append_string(char **str, size_t *total_len, const char *ss,
 | |
| 	      size_t len, int quote)
 | |
| {
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|     char *s, *qs;
 | |
| 
 | |
|     if (quote)
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| 	qs = quote_string(ss, len, Q_RFC2253, &len);
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|     else
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| 	qs = rk_UNCONST(ss);
 | |
| 
 | |
|     s = realloc(*str, len + *total_len + 1);
 | |
|     if (s == NULL)
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| 	_hx509_abort("allocation failure"); /* XXX */
 | |
|     memcpy(s + *total_len, qs, len);
 | |
|     if (qs != ss)
 | |
| 	free(qs);
 | |
|     s[*total_len + len] = '\0';
 | |
|     *str = s;
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|     *total_len += len;
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static char *
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| oidtostring(const heim_oid *type, int *type_choice)
 | |
| {
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|     char *s;
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|     size_t i;
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| 
 | |
|     if (type_choice)
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|         *type_choice = choice_DirectoryString_utf8String;
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| 
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|     for (i = 0; i < sizeof(no)/sizeof(no[0]); i++) {
 | |
| 	if (der_heim_oid_cmp(no[i].o, type) == 0) {
 | |
|             if (type_choice && no[i].type_choice)
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|                 *type_choice = no[i].type_choice;
 | |
| 	    return strdup(no[i].n);
 | |
|         }
 | |
|     }
 | |
|     if (der_print_heim_oid(type, '.', &s) != 0)
 | |
| 	return NULL;
 | |
|     return s;
 | |
| }
 | |
| 
 | |
| static size_t
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| oidtomaxlen(const heim_oid *type)
 | |
| {
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|     size_t i;
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| 
 | |
|     for (i = 0; i < sizeof(no)/sizeof(no[0]); i++) {
 | |
| 	if (der_heim_oid_cmp(no[i].o, type) == 0)
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| 	    return no[i].max_bytes;
 | |
|     }
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|     return 0;
 | |
| }
 | |
| 
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| static int
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| stringtooid(const char *name, size_t len, heim_oid *oid)
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| {
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|     int ret;
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|     size_t i;
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|     char *s;
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| 
 | |
|     memset(oid, 0, sizeof(*oid));
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| 
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|     for (i = 0; i < sizeof(no)/sizeof(no[0]); i++) {
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| 	if (strncasecmp(no[i].n, name, len) == 0)
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| 	    return der_copy_oid(no[i].o, oid);
 | |
|     }
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|     s = malloc(len + 1);
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|     if (s == NULL)
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| 	return ENOMEM;
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|     memcpy(s, name, len);
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|     s[len] = '\0';
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|     ret = der_parse_heim_oid(s, ".", oid);
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|     free(s);
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|     return ret;
 | |
| }
 | |
| 
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| /**
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|  * Convert the hx509 name object into a printable string.
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|  * The resulting string should be freed with free().
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|  *
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|  * @param name name to print
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|  * @param str the string to return
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|  *
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|  * @return An hx509 error code, see hx509_get_error_string().
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|  *
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|  * @ingroup hx509_name
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|  */
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| 
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| HX509_LIB_FUNCTION int HX509_LIB_CALL
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| hx509_name_to_string(const hx509_name name, char **str)
 | |
| {
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|     return _hx509_Name_to_string(&name->der_name, str);
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| }
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| 
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| HX509_LIB_FUNCTION int HX509_LIB_CALL
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| _hx509_Name_to_string(const Name *n, char **str)
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| {
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|     size_t total_len = 0;
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|     size_t i, j, m;
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|     int ret;
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| 
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|     *str = strdup("");
 | |
|     if (*str == NULL)
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| 	return ENOMEM;
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| 
 | |
|     for (m = n->u.rdnSequence.len; m > 0; m--) {
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| 	size_t len;
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| 	i = m - 1;
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| 
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| 	for (j = 0; j < n->u.rdnSequence.val[i].len; j++) {
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| 	    DirectoryString *ds = &n->u.rdnSequence.val[i].val[j].value;
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| 	    char *oidname;
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| 	    char *ss;
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| 
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| 	    oidname = oidtostring(&n->u.rdnSequence.val[i].val[j].type, NULL);
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| 
 | |
| 	    switch(ds->element) {
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| 	    case choice_DirectoryString_ia5String:
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| 		ss = ds->u.ia5String.data;
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| 		len = ds->u.ia5String.length;
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| 		break;
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| 	    case choice_DirectoryString_printableString:
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| 		ss = ds->u.printableString.data;
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| 		len = ds->u.printableString.length;
 | |
| 		break;
 | |
| 	    case choice_DirectoryString_utf8String:
 | |
| 		ss = ds->u.utf8String;
 | |
| 		len = strlen(ss);
 | |
| 		break;
 | |
| 	    case choice_DirectoryString_bmpString: {
 | |
| 	        const uint16_t *bmp = ds->u.bmpString.data;
 | |
| 		size_t bmplen = ds->u.bmpString.length;
 | |
| 		size_t k;
 | |
| 
 | |
| 		ret = wind_ucs2utf8_length(bmp, bmplen, &k);
 | |
| 		if (ret) {
 | |
|                     free(oidname);
 | |
|                     free(*str);
 | |
|                     *str = NULL;
 | |
| 		    return ret;
 | |
|                 }
 | |
| 
 | |
| 		ss = malloc(k + 1);
 | |
| 		if (ss == NULL)
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| 		    _hx509_abort("allocation failure"); /* XXX */
 | |
| 		ret = wind_ucs2utf8(bmp, bmplen, ss, NULL);
 | |
| 		if (ret) {
 | |
|                     free(oidname);
 | |
| 		    free(ss);
 | |
|                     free(*str);
 | |
|                     *str = NULL;
 | |
| 		    return ret;
 | |
| 		}
 | |
| 		ss[k] = '\0';
 | |
| 		len = k;
 | |
| 		break;
 | |
| 	    }
 | |
| 	    case choice_DirectoryString_teletexString:
 | |
| 		ss = ds->u.teletexString;
 | |
| 		len = strlen(ss);
 | |
| 		break;
 | |
| 	    case choice_DirectoryString_universalString: {
 | |
| 	        const uint32_t *uni = ds->u.universalString.data;
 | |
| 		size_t unilen = ds->u.universalString.length;
 | |
| 		size_t k;
 | |
| 
 | |
| 		ret = wind_ucs4utf8_length(uni, unilen, &k);
 | |
| 		if (ret) {
 | |
|                     free(oidname);
 | |
|                     free(*str);
 | |
|                     *str = NULL;
 | |
| 		    return ret;
 | |
|                 }
 | |
| 
 | |
| 		ss = malloc(k + 1);
 | |
| 		if (ss == NULL)
 | |
| 		    _hx509_abort("allocation failure"); /* XXX */
 | |
| 		ret = wind_ucs4utf8(uni, unilen, ss, NULL);
 | |
| 		if (ret) {
 | |
| 		    free(ss);
 | |
|                     free(oidname);
 | |
|                     free(*str);
 | |
|                     *str = NULL;
 | |
| 		    return ret;
 | |
| 		}
 | |
| 		ss[k] = '\0';
 | |
| 		len = k;
 | |
| 		break;
 | |
| 	    }
 | |
| 	    default:
 | |
| 		_hx509_abort("unknown directory type: %d", ds->element);
 | |
| 		exit(1);
 | |
| 	    }
 | |
| 	    append_string(str, &total_len, oidname, strlen(oidname), 0);
 | |
| 	    free(oidname);
 | |
| 	    append_string(str, &total_len, "=", 1, 0);
 | |
| 	    append_string(str, &total_len, ss, len, 1);
 | |
| 	    if (ds->element == choice_DirectoryString_bmpString ||
 | |
| 		ds->element == choice_DirectoryString_universalString)
 | |
| 	    {
 | |
| 		free(ss);
 | |
| 	    }
 | |
| 	    if (j + 1 < n->u.rdnSequence.val[i].len)
 | |
| 		append_string(str, &total_len, "+", 1, 0);
 | |
| 	}
 | |
| 
 | |
| 	if (i > 0)
 | |
| 	    append_string(str, &total_len, ",", 1, 0);
 | |
|     }
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| #define COPYCHARARRAY(_ds,_el,_l,_n)			\
 | |
|         (_l) = strlen(_ds->u._el);			\
 | |
| 	(_n) = malloc((_l + 1) * sizeof((_n)[0]));	\
 | |
| 	if ((_n) == NULL)				\
 | |
| 	    return ENOMEM;				\
 | |
| 	for (i = 0; i < (_l); i++)			\
 | |
| 	    (_n)[i] = _ds->u._el[i]
 | |
| 
 | |
| 
 | |
| #define COPYVALARRAY(_ds,_el,_l,_n)			\
 | |
|         (_l) = _ds->u._el.length;			\
 | |
| 	(_n) = malloc((_l + 1) * sizeof((_n)[0]));	\
 | |
| 	if ((_n) == NULL)				\
 | |
| 	    return ENOMEM;				\
 | |
| 	for (i = 0; i < (_l); i++)			\
 | |
| 	    (_n)[i] = _ds->u._el.data[i]
 | |
| 
 | |
| #define COPYVOIDARRAY(_ds,_el,_l,_n)			\
 | |
|         (_l) = _ds->u._el.length;			\
 | |
| 	(_n) = malloc((_l + 1) * sizeof((_n)[0]));	\
 | |
| 	if ((_n) == NULL)				\
 | |
| 	    return ENOMEM;				\
 | |
| 	for (i = 0; i < (_l); i++)			\
 | |
| 	    (_n)[i] = ((unsigned char *)_ds->u._el.data)[i]
 | |
| 
 | |
| 
 | |
| 
 | |
| static int
 | |
| dsstringprep(const DirectoryString *ds, uint32_t **rname, size_t *rlen)
 | |
| {
 | |
|     wind_profile_flags flags;
 | |
|     size_t i, len;
 | |
|     int ret = 0;
 | |
|     uint32_t *name;
 | |
| 
 | |
|     *rname = NULL;
 | |
|     *rlen = 0;
 | |
| 
 | |
|     switch(ds->element) {
 | |
|     case choice_DirectoryString_ia5String:
 | |
| 	flags = WIND_PROFILE_LDAP;
 | |
| 	COPYVOIDARRAY(ds, ia5String, len, name);
 | |
| 	break;
 | |
|     case choice_DirectoryString_printableString:
 | |
| 	flags = WIND_PROFILE_LDAP;
 | |
| 	flags |= WIND_PROFILE_LDAP_CASE_EXACT_ATTRIBUTE;
 | |
| 	COPYVOIDARRAY(ds, printableString, len, name);
 | |
| 	break;
 | |
|     case choice_DirectoryString_teletexString:
 | |
| 	flags = WIND_PROFILE_LDAP_CASE;
 | |
| 	COPYCHARARRAY(ds, teletexString, len, name);
 | |
| 	break;
 | |
|     case choice_DirectoryString_bmpString:
 | |
| 	flags = WIND_PROFILE_LDAP;
 | |
| 	COPYVALARRAY(ds, bmpString, len, name);
 | |
| 	break;
 | |
|     case choice_DirectoryString_universalString:
 | |
| 	flags = WIND_PROFILE_LDAP;
 | |
| 	COPYVALARRAY(ds, universalString, len, name);
 | |
| 	break;
 | |
|     case choice_DirectoryString_utf8String:
 | |
| 	flags = WIND_PROFILE_LDAP;
 | |
| 	ret = wind_utf8ucs4_length(ds->u.utf8String, &len);
 | |
| 	if (ret)
 | |
| 	    return ret;
 | |
| 	name = malloc((len + 1) * sizeof(name[0]));
 | |
| 	if (name == NULL)
 | |
| 	    return ENOMEM;
 | |
| 	ret = wind_utf8ucs4(ds->u.utf8String, name, &len);
 | |
| 	if (ret) {
 | |
| 	    free(name);
 | |
| 	    return ret;
 | |
| 	}
 | |
| 	break;
 | |
|     default:
 | |
| 	_hx509_abort("unknown directory type: %d", ds->element);
 | |
|     }
 | |
| 
 | |
|     *rlen = len;
 | |
|     /* try a couple of times to get the length right, XXX gross */
 | |
|     for (i = 0; i < 4; i++) {
 | |
| 	*rlen = *rlen * 2;
 | |
| 	if ((*rname = malloc((rlen[0] + 1) * sizeof((*rname)[0]))) == NULL) {
 | |
|             ret = ENOMEM;
 | |
|             break;
 | |
|         }
 | |
| 
 | |
| 	ret = wind_stringprep(name, len, *rname, rlen, flags);
 | |
| 	if (ret == WIND_ERR_OVERRUN) {
 | |
| 	    free(*rname);
 | |
| 	    *rname = NULL;
 | |
| 	    continue;
 | |
| 	} else
 | |
| 	    break;
 | |
|     }
 | |
|     free(name);
 | |
|     if (ret) {
 | |
| 	if (*rname)
 | |
| 	    free(*rname);
 | |
| 	*rname = NULL;
 | |
| 	*rlen = 0;
 | |
| 	return ret;
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| _hx509_name_ds_cmp(const DirectoryString *ds1,
 | |
| 		   const DirectoryString *ds2,
 | |
| 		   int *diff)
 | |
| {
 | |
|     uint32_t *ds1lp, *ds2lp;
 | |
|     size_t ds1len, ds2len, i;
 | |
|     int ret;
 | |
| 
 | |
|     ret = dsstringprep(ds1, &ds1lp, &ds1len);
 | |
|     if (ret)
 | |
| 	return ret;
 | |
|     ret = dsstringprep(ds2, &ds2lp, &ds2len);
 | |
|     if (ret) {
 | |
| 	free(ds1lp);
 | |
| 	return ret;
 | |
|     }
 | |
| 
 | |
|     if (ds1len != ds2len)
 | |
| 	*diff = ds1len - ds2len;
 | |
|     else {
 | |
| 	for (i = 0; i < ds1len; i++) {
 | |
| 	    *diff = ds1lp[i] - ds2lp[i];
 | |
| 	    if (*diff)
 | |
| 		break;
 | |
| 	}
 | |
|     }
 | |
|     free(ds1lp);
 | |
|     free(ds2lp);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| _hx509_name_cmp(const Name *n1, const Name *n2, int *c)
 | |
| {
 | |
|     int ret;
 | |
|     size_t i, j;
 | |
| 
 | |
|     *c = n1->u.rdnSequence.len - n2->u.rdnSequence.len;
 | |
|     if (*c)
 | |
| 	return 0;
 | |
| 
 | |
|     for (i = 0 ; i < n1->u.rdnSequence.len; i++) {
 | |
| 	*c = n1->u.rdnSequence.val[i].len - n2->u.rdnSequence.val[i].len;
 | |
| 	if (*c)
 | |
| 	    return 0;
 | |
| 
 | |
| 	for (j = 0; j < n1->u.rdnSequence.val[i].len; j++) {
 | |
| 	    *c = der_heim_oid_cmp(&n1->u.rdnSequence.val[i].val[j].type,
 | |
| 				  &n1->u.rdnSequence.val[i].val[j].type);
 | |
| 	    if (*c)
 | |
| 		return 0;
 | |
| 
 | |
| 	    ret = _hx509_name_ds_cmp(&n1->u.rdnSequence.val[i].val[j].value,
 | |
| 				     &n2->u.rdnSequence.val[i].val[j].value,
 | |
| 				     c);
 | |
| 	    if (ret)
 | |
| 		return ret;
 | |
| 	    if (*c)
 | |
| 		return 0;
 | |
| 	}
 | |
|     }
 | |
|     *c = 0;
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Compare to hx509 name object, useful for sorting.
 | |
|  *
 | |
|  * @param n1 a hx509 name object.
 | |
|  * @param n2 a hx509 name object.
 | |
|  *
 | |
|  * @return 0 the objects are the same, returns > 0 is n2 is "larger"
 | |
|  * then n2, < 0 if n1 is "smaller" then n2.
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_cmp(hx509_name n1, hx509_name n2)
 | |
| {
 | |
|     int ret, diff;
 | |
|     ret = _hx509_name_cmp(&n1->der_name, &n2->der_name, &diff);
 | |
|     if (ret)
 | |
| 	return ret;
 | |
|     return diff;
 | |
| }
 | |
| 
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| _hx509_name_from_Name(const Name *n, hx509_name *name)
 | |
| {
 | |
|     int ret;
 | |
|     *name = calloc(1, sizeof(**name));
 | |
|     if (*name == NULL)
 | |
| 	return ENOMEM;
 | |
|     ret = copy_Name(n, &(*name)->der_name);
 | |
|     if (ret) {
 | |
| 	free(*name);
 | |
| 	*name = NULL;
 | |
|     }
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| _hx509_name_modify(hx509_context context,
 | |
| 		   Name *name,
 | |
| 		   int append,
 | |
| 		   const heim_oid *oid,
 | |
| 		   const char *str)
 | |
| {
 | |
|     RelativeDistinguishedName rdn;
 | |
|     size_t max_len = oidtomaxlen(oid);
 | |
|     char *s = NULL;
 | |
|     int type_choice = choice_DirectoryString_printableString;
 | |
|     int ret;
 | |
| 
 | |
|     /*
 | |
|      * Check string length upper bounds.
 | |
|      *
 | |
|      * Because we don't have these bounds in our copy of the PKIX ASN.1 module,
 | |
|      * and because we might like to catch these early anyways, we enforce them
 | |
|      * here.
 | |
|      */
 | |
|     if (max_len && strlen(str) > max_len) {
 | |
|         char *a = oidtostring(oid, &type_choice);
 | |
| 
 | |
|         ret = HX509_PARSING_NAME_FAILED;
 | |
|         hx509_set_error_string(context, 0, ret, "RDN attribute %s value too "
 | |
|                                "long (max %llu): %s", a ? a : "<unknown>",
 | |
|                                max_len, str);
 | |
|         free(a);
 | |
|         return ret;
 | |
|     }
 | |
| 
 | |
|     memset(&rdn, 0, sizeof(rdn));
 | |
|     if ((rdn.val = malloc(sizeof(rdn.val[0]))) == NULL) {
 | |
| 	hx509_set_error_string(context, 0, ENOMEM, "Out of memory");
 | |
| 	return ENOMEM;
 | |
|     }
 | |
|     rdn.len = 1;
 | |
| 
 | |
|     /*
 | |
|      * How best to pick a type for this attribute value?
 | |
|      *
 | |
|      * Options:
 | |
|      *
 | |
|      * 1) the API deals only in UTF-8, let the callers convert to/from UTF-8
 | |
|      *    and whatever the current locale wants
 | |
|      *
 | |
|      * 2) use the best type for the codeset of the current locale.
 | |
|      *
 | |
|      * We choose (1).
 | |
|      *
 | |
|      * However, for some cases we really should prefer other types when the
 | |
|      * input string is all printable ASCII.
 | |
|      */
 | |
|     rdn.val[0].value.element = type_choice;
 | |
|     if ((s = strdup(str)) == NULL ||
 | |
|         der_copy_oid(oid, &rdn.val[0].type)) {
 | |
|         free(rdn.val);
 | |
|         free(s);
 | |
| 	return hx509_enomem(context);
 | |
|     }
 | |
|     switch (rdn.val[0].value.element) {
 | |
|     /* C strings: */
 | |
|     case choice_DirectoryString_utf8String:
 | |
|         rdn.val[0].value.u.utf8String = s;
 | |
|         break;
 | |
|     case choice_DirectoryString_teletexString:
 | |
|         rdn.val[0].value.u.teletexString = s;
 | |
|         break;
 | |
| 
 | |
|     /* Length and pointer */
 | |
|     case choice_DirectoryString_ia5String:
 | |
|         rdn.val[0].value.u.ia5String.data = s;
 | |
|         rdn.val[0].value.u.ia5String.length = strlen(s);
 | |
|         break;
 | |
|     case choice_DirectoryString_printableString:
 | |
|         rdn.val[0].value.u.printableString.data = s;
 | |
|         rdn.val[0].value.u.printableString.length = strlen(s);
 | |
|         break;
 | |
|     case choice_DirectoryString_universalString:
 | |
|         free(s);
 | |
|         free(rdn.val);
 | |
| 	hx509_set_error_string(context, 0, ENOTSUP, "UniversalString not supported");
 | |
|         return ENOTSUP;
 | |
|     case choice_DirectoryString_bmpString:
 | |
|         free(s);
 | |
|         free(rdn.val);
 | |
| 	hx509_set_error_string(context, 0, ENOTSUP, "BMPString not supported");
 | |
|         return ENOTSUP;
 | |
|     default:
 | |
|         free(s);
 | |
|         free(rdn.val);
 | |
| 	hx509_set_error_string(context, 0, ENOTSUP,
 | |
|                                "Internal error; unknown DirectoryString choice");
 | |
|         return ENOTSUP;
 | |
|     }
 | |
| 
 | |
|     /* Append RDN.  If the caller wanted to prepend instead, we'll rotate. */
 | |
|     ret = add_RDNSequence(&name->u.rdnSequence, &rdn);
 | |
|     free_RelativeDistinguishedName(&rdn);
 | |
| 
 | |
|     if (ret || append || name->u.rdnSequence.len < 2)
 | |
|         return ret;
 | |
| 
 | |
|     /* Rotate */
 | |
|     rdn = name->u.rdnSequence.val[name->u.rdnSequence.len - 1];
 | |
|     memmove(&name->u.rdnSequence.val[1],
 | |
|             &name->u.rdnSequence.val[0],
 | |
|             (name->u.rdnSequence.len - 1) *
 | |
|             sizeof(name->u.rdnSequence.val[0]));
 | |
|     name->u.rdnSequence.val[0] = rdn;
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_empty_name(hx509_context context, hx509_name *name)
 | |
| {
 | |
|     if ((*name = calloc(1, sizeof(**name))) == NULL) {
 | |
| 	hx509_set_error_string(context, 0, ENOMEM, "out of memory");
 | |
| 	return ENOMEM;
 | |
|     }
 | |
|     (*name)->der_name.element = choice_Name_rdnSequence;
 | |
|     (*name)->der_name.u.rdnSequence.val = 0;
 | |
|     (*name)->der_name.u.rdnSequence.len = 0;
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Parse a string into a hx509 name object.
 | |
|  *
 | |
|  * @param context A hx509 context.
 | |
|  * @param str a string to parse.
 | |
|  * @param name the resulting object, NULL in case of error.
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_parse_name(hx509_context context, const char *str, hx509_name *name)
 | |
| {
 | |
|     const char *p, *q;
 | |
|     size_t len;
 | |
|     hx509_name n;
 | |
|     int ret;
 | |
| 
 | |
|     *name = NULL;
 | |
| 
 | |
|     n = calloc(1, sizeof(*n));
 | |
|     if (n == NULL) {
 | |
| 	hx509_set_error_string(context, 0, ENOMEM, "out of memory");
 | |
| 	return ENOMEM;
 | |
|     }
 | |
| 
 | |
|     n->der_name.element = choice_Name_rdnSequence;
 | |
| 
 | |
|     p = str;
 | |
| 
 | |
|     while (p != NULL && *p != '\0') {
 | |
| 	heim_oid oid;
 | |
| 	int last;
 | |
| 
 | |
| 	q = strchr(p, ',');
 | |
| 	if (q) {
 | |
| 	    len = (q - p);
 | |
| 	    last = 1;
 | |
| 	} else {
 | |
| 	    len = strlen(p);
 | |
| 	    last = 0;
 | |
| 	}
 | |
| 
 | |
| 	q = strchr(p, '=');
 | |
| 	if (q == NULL) {
 | |
| 	    ret = HX509_PARSING_NAME_FAILED;
 | |
| 	    hx509_set_error_string(context, 0, ret, "missing = in %s", p);
 | |
| 	    goto out;
 | |
| 	}
 | |
| 	if (q == p) {
 | |
| 	    ret = HX509_PARSING_NAME_FAILED;
 | |
| 	    hx509_set_error_string(context, 0, ret,
 | |
| 				   "missing name before = in %s", p);
 | |
| 	    goto out;
 | |
| 	}
 | |
| 
 | |
| 	if ((size_t)(q - p) > len) {
 | |
| 	    ret = HX509_PARSING_NAME_FAILED;
 | |
| 	    hx509_set_error_string(context, 0, ret, " = after , in %s", p);
 | |
| 	    goto out;
 | |
| 	}
 | |
| 
 | |
| 	ret = stringtooid(p, q - p, &oid);
 | |
| 	if (ret) {
 | |
| 	    ret = HX509_PARSING_NAME_FAILED;
 | |
| 	    hx509_set_error_string(context, 0, ret,
 | |
| 				   "unknown type: %.*s", (int)(q - p), p);
 | |
| 	    goto out;
 | |
| 	}
 | |
| 
 | |
| 	{
 | |
| 	    size_t pstr_len = len - (q - p) - 1;
 | |
| 	    const char *pstr = p + (q - p) + 1;
 | |
| 	    char *r;
 | |
| 
 | |
| 	    r = malloc(pstr_len + 1);
 | |
| 	    if (r == NULL) {
 | |
| 		der_free_oid(&oid);
 | |
| 		ret = ENOMEM;
 | |
| 		hx509_set_error_string(context, 0, ret, "out of memory");
 | |
| 		goto out;
 | |
| 	    }
 | |
| 	    memcpy(r, pstr, pstr_len);
 | |
| 	    r[pstr_len] = '\0';
 | |
| 
 | |
| 	    ret = _hx509_name_modify(context, &n->der_name, 0, &oid, r);
 | |
| 	    free(r);
 | |
| 	    der_free_oid(&oid);
 | |
| 	    if(ret)
 | |
| 		goto out;
 | |
| 	}
 | |
| 	p += len + last;
 | |
|     }
 | |
| 
 | |
|     *name = n;
 | |
| 
 | |
|     return 0;
 | |
| out:
 | |
|     hx509_name_free(&n);
 | |
|     return HX509_NAME_MALFORMED;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Copy a hx509 name object.
 | |
|  *
 | |
|  * @param context A hx509 cotext.
 | |
|  * @param from the name to copy from
 | |
|  * @param to the name to copy to
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_copy(hx509_context context, const hx509_name from, hx509_name *to)
 | |
| {
 | |
|     int ret;
 | |
| 
 | |
|     *to = calloc(1, sizeof(**to));
 | |
|     if (*to == NULL)
 | |
| 	return ENOMEM;
 | |
|     ret = copy_Name(&from->der_name, &(*to)->der_name);
 | |
|     if (ret) {
 | |
| 	free(*to);
 | |
| 	*to = NULL;
 | |
| 	return ENOMEM;
 | |
|     }
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Convert a hx509_name into a Name.
 | |
|  *
 | |
|  * @param from the name to copy from
 | |
|  * @param to the name to copy to
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_to_Name(const hx509_name from, Name *to)
 | |
| {
 | |
|     return copy_Name(&from->der_name, to);
 | |
| }
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_normalize(hx509_context context, hx509_name name)
 | |
| {
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Expands variables in the name using env. Variables are on the form
 | |
|  * ${name}. Useful when dealing with certificate templates.
 | |
|  *
 | |
|  * @param context A hx509 cotext.
 | |
|  * @param name the name to expand.
 | |
|  * @param env environment variable to expand.
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_expand(hx509_context context,
 | |
| 		  hx509_name name,
 | |
| 		  hx509_env env)
 | |
| {
 | |
|     Name *n = &name->der_name;
 | |
|     size_t i, j;
 | |
|     int bounds_check = 1;
 | |
| 
 | |
|     if (env == NULL)
 | |
| 	return 0;
 | |
| 
 | |
|     if (n->element != choice_Name_rdnSequence) {
 | |
| 	hx509_set_error_string(context, 0, EINVAL, "RDN not of supported type");
 | |
| 	return EINVAL;
 | |
|     }
 | |
| 
 | |
|     for (i = 0 ; i < n->u.rdnSequence.len; i++) {
 | |
| 	for (j = 0; j < n->u.rdnSequence.val[i].len; j++) {
 | |
| 	    /** Only UTF8String rdnSequence names are allowed */
 | |
| 	    /*
 | |
| 	      THIS SHOULD REALLY BE:
 | |
| 	      COMP = n->u.rdnSequence.val[i].val[j];
 | |
| 	      normalize COMP to utf8
 | |
| 	      check if there are variables
 | |
| 	        expand variables
 | |
| 	        convert back to orignal format, store in COMP
 | |
| 	      free normalized utf8 string
 | |
| 	    */
 | |
| 	    DirectoryString *ds = &n->u.rdnSequence.val[i].val[j].value;
 | |
|             heim_oid *type = &n->u.rdnSequence.val[i].val[j].type;
 | |
|             const char *sval = NULL;
 | |
| 	    char *p, *p2;
 | |
|             char *s = NULL;
 | |
| 	    struct rk_strpool *strpool = NULL;
 | |
| 
 | |
|             switch (ds->element) {
 | |
|             case choice_DirectoryString_utf8String:
 | |
|                 sval = ds->u.utf8String;
 | |
|                 break;
 | |
|             case choice_DirectoryString_teletexString:
 | |
|                 sval = ds->u.utf8String;
 | |
|                 break;
 | |
|             case choice_DirectoryString_ia5String:
 | |
|                 s = strndup(ds->u.ia5String.data,
 | |
|                             ds->u.ia5String.length);
 | |
|                 break;
 | |
|             case choice_DirectoryString_printableString:
 | |
|                 s = strndup(ds->u.printableString.data,
 | |
|                             ds->u.printableString.length);
 | |
|                 break;
 | |
|             case choice_DirectoryString_universalString:
 | |
|                 hx509_set_error_string(context, 0, ENOTSUP, "UniversalString not supported");
 | |
|                 return ENOTSUP;
 | |
|             case choice_DirectoryString_bmpString:
 | |
|                 hx509_set_error_string(context, 0, ENOTSUP, "BMPString not supported");
 | |
|                 return ENOTSUP;
 | |
|             }
 | |
|             if (sval == NULL && s == NULL)
 | |
|                 return hx509_enomem(context);
 | |
|             if (s)
 | |
|                 sval = s;
 | |
| 
 | |
| 	    p = strstr(sval, "${");
 | |
| 	    if (p) {
 | |
| 		strpool = rk_strpoolprintf(strpool, "%.*s", (int)(p - sval), sval);
 | |
| 		if (strpool == NULL) {
 | |
| 		    hx509_set_error_string(context, 0, ENOMEM, "out of memory");
 | |
|                     free(s);
 | |
| 		    return ENOMEM;
 | |
| 		}
 | |
| 	    }
 | |
| 
 | |
| 	    while (p != NULL) {
 | |
| 		/* expand variables */
 | |
| 		const char *value;
 | |
| 		p2 = strchr(p, '}');
 | |
| 		if (p2 == NULL) {
 | |
| 		    hx509_set_error_string(context, 0, EINVAL, "missing }");
 | |
| 		    rk_strpoolfree(strpool);
 | |
|                     free(s);
 | |
| 		    return EINVAL;
 | |
| 		}
 | |
| 		p += 2;
 | |
| 		value = hx509_env_lfind(context, env, p, p2 - p);
 | |
| 		if (value == NULL) {
 | |
| 		    hx509_set_error_string(context, 0, EINVAL,
 | |
| 					   "variable %.*s missing",
 | |
| 					   (int)(p2 - p), p);
 | |
| 		    rk_strpoolfree(strpool);
 | |
|                     free(s);
 | |
| 		    return EINVAL;
 | |
| 		}
 | |
| 		strpool = rk_strpoolprintf(strpool, "%s", value);
 | |
| 		if (strpool == NULL) {
 | |
| 		    hx509_set_error_string(context, 0, ENOMEM, "out of memory");
 | |
|                     free(s);
 | |
| 		    return ENOMEM;
 | |
| 		}
 | |
| 		p2++;
 | |
| 
 | |
| 		p = strstr(p2, "${");
 | |
| 		if (p)
 | |
| 		    strpool = rk_strpoolprintf(strpool, "%.*s",
 | |
| 					       (int)(p - p2), p2);
 | |
| 		else
 | |
| 		    strpool = rk_strpoolprintf(strpool, "%s", p2);
 | |
| 		if (strpool == NULL) {
 | |
| 		    hx509_set_error_string(context, 0, ENOMEM, "out of memory");
 | |
|                     free(s);
 | |
| 		    return ENOMEM;
 | |
| 		}
 | |
| 	    }
 | |
| 
 | |
|             free(s);
 | |
|             s = NULL;
 | |
| 
 | |
| 	    if (strpool) {
 | |
|                 size_t max_bytes;
 | |
| 
 | |
|                 if ((s = rk_strpoolcollect(strpool)) == NULL) {
 | |
|                     hx509_set_error_string(context, 0, ENOMEM, "out of memory");
 | |
|                     return ENOMEM;
 | |
|                 }
 | |
| 
 | |
|                 /* Check upper bounds! */
 | |
|                 if ((max_bytes = oidtomaxlen(type)) && strlen(s) > max_bytes)
 | |
|                     bounds_check = 0;
 | |
| 
 | |
|                 switch (ds->element) {
 | |
|                 /* C strings: */
 | |
|                 case choice_DirectoryString_utf8String:
 | |
|                     free(ds->u.utf8String);
 | |
|                     ds->u.utf8String = s;
 | |
|                     break;
 | |
|                 case choice_DirectoryString_teletexString:
 | |
|                     free(ds->u.teletexString);
 | |
|                     ds->u.teletexString = s;
 | |
|                     break;
 | |
| 
 | |
|                 /* Length and pointer */
 | |
|                 case choice_DirectoryString_ia5String:
 | |
|                     free(ds->u.ia5String.data);
 | |
|                     ds->u.ia5String.data = s;
 | |
|                     ds->u.ia5String.length = strlen(s);
 | |
|                     break;
 | |
|                 case choice_DirectoryString_printableString:
 | |
|                     free(ds->u.printableString.data);
 | |
|                     ds->u.printableString.data = s;
 | |
|                     ds->u.printableString.length = strlen(s);
 | |
|                     break;
 | |
|                 default:
 | |
|                     break; /* Handled above */
 | |
|                 }
 | |
| 	    }
 | |
| 	}
 | |
|     }
 | |
| 
 | |
|     if (!bounds_check) {
 | |
|         hx509_set_error_string(context, 0, HX509_PARSING_NAME_FAILED,
 | |
|                                "some expanded RDNs are too long");
 | |
|         return HX509_PARSING_NAME_FAILED;
 | |
|     }
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Free a hx509 name object, upond return *name will be NULL.
 | |
|  *
 | |
|  * @param name a hx509 name object to be freed.
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION void HX509_LIB_CALL
 | |
| hx509_name_free(hx509_name *name)
 | |
| {
 | |
|     free_Name(&(*name)->der_name);
 | |
|     memset(*name, 0, sizeof(**name));
 | |
|     free(*name);
 | |
|     *name = NULL;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Convert a DER encoded name info a string.
 | |
|  *
 | |
|  * @param data data to a DER/BER encoded name
 | |
|  * @param length length of data
 | |
|  * @param str the resulting string, is NULL on failure.
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_unparse_der_name(const void *data, size_t length, char **str)
 | |
| {
 | |
|     Name name;
 | |
|     int ret;
 | |
| 
 | |
|     *str = NULL;
 | |
| 
 | |
|     ret = decode_Name(data, length, &name, NULL);
 | |
|     if (ret)
 | |
| 	return ret;
 | |
|     ret = _hx509_Name_to_string(&name, str);
 | |
|     free_Name(&name);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Convert a hx509_name object to DER encoded name.
 | |
|  *
 | |
|  * @param name name to concert
 | |
|  * @param os data to a DER encoded name, free the resulting octet
 | |
|  * string with hx509_xfree(os->data).
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_binary(const hx509_name name, heim_octet_string *os)
 | |
| {
 | |
|     size_t size;
 | |
|     int ret;
 | |
| 
 | |
|     ASN1_MALLOC_ENCODE(Name, os->data, os->length, &name->der_name, &size, ret);
 | |
|     if (ret)
 | |
| 	return ret;
 | |
|     if (os->length != size)
 | |
| 	_hx509_abort("internal ASN.1 encoder error");
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| _hx509_unparse_Name(const Name *aname, char **str)
 | |
| {
 | |
|     hx509_name name;
 | |
|     int ret;
 | |
| 
 | |
|     ret = _hx509_name_from_Name(aname, &name);
 | |
|     if (ret)
 | |
| 	return ret;
 | |
| 
 | |
|     ret = hx509_name_to_string(name, str);
 | |
|     hx509_name_free(&name);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Check if a name is empty.
 | |
|  *
 | |
|  * @param name the name to check if its empty/null.
 | |
|  *
 | |
|  * @return non zero if the name is empty/null.
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_name_is_null_p(const hx509_name name)
 | |
| {
 | |
|     return name->der_name.element == choice_Name_rdnSequence &&
 | |
|         name->der_name.u.rdnSequence.len == 0;
 | |
| }
 | |
| 
 | |
| int
 | |
| _hx509_unparse_PermanentIdentifier(hx509_context context,
 | |
|                                    struct rk_strpool **strpool,
 | |
|                                    heim_any *value)
 | |
| {
 | |
|     PermanentIdentifier pi;
 | |
|     size_t len;
 | |
|     const char *pid = "";
 | |
|     char *s = NULL;
 | |
|     int ret;
 | |
| 
 | |
|     ret = decode_PermanentIdentifier(value->data, value->length, &pi, &len);
 | |
|     if (ret == 0 && pi.assigner &&
 | |
|         der_print_heim_oid(pi.assigner, '.', &s) != 0)
 | |
| 	ret = hx509_enomem(context);
 | |
|     if (pi.identifierValue && *pi.identifierValue)
 | |
|         pid = *pi.identifierValue;
 | |
|     if (ret == 0 &&
 | |
|         (*strpool = rk_strpoolprintf(*strpool, "%s:%s", s ? s : "", pid)) == NULL)
 | |
|         ret = hx509_enomem(context);
 | |
|     free_PermanentIdentifier(&pi);
 | |
|     free(s);
 | |
|     if (ret) {
 | |
|         rk_strpoolfree(*strpool);
 | |
|         *strpool = rk_strpoolprintf(NULL,
 | |
|                                     "<error-decoding-PermanentIdentifier");
 | |
|         hx509_set_error_string(context, 0, ret,
 | |
|                                "Failed to decode PermanentIdentifier");
 | |
|     }
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| int
 | |
| _hx509_unparse_HardwareModuleName(hx509_context context,
 | |
|                                   struct rk_strpool **strpool,
 | |
|                                   heim_any *value)
 | |
| {
 | |
|     HardwareModuleName hm;
 | |
|     size_t len;
 | |
|     char *s = NULL;
 | |
|     int ret;
 | |
| 
 | |
|     ret = decode_HardwareModuleName(value->data, value->length, &hm, &len);
 | |
|     if (ret == 0 && hm.hwSerialNum.length > 256)
 | |
|         hm.hwSerialNum.length = 256;
 | |
|     if (ret == 0)
 | |
|         ret = der_print_heim_oid(&hm.hwType, '.', &s);
 | |
|     if (ret == 0) {
 | |
|         *strpool = rk_strpoolprintf(*strpool, "%s:%.*s%s", s,
 | |
|                                     (int)hm.hwSerialNum.length,
 | |
|                                     (char *)hm.hwSerialNum.data,
 | |
|                                     value->length == len ? "" : ", <garbage>");
 | |
|         if (*strpool == NULL)
 | |
|             ret = hx509_enomem(context);
 | |
|     }
 | |
|     free_HardwareModuleName(&hm);
 | |
|     free(s);
 | |
|     if (ret) {
 | |
|         rk_strpoolfree(*strpool);
 | |
|         *strpool = rk_strpoolprintf(NULL,
 | |
|                                     "<error-decoding-HardwareModuleName");
 | |
|         hx509_set_error_string(context, 0, ret,
 | |
|                                "Failed to decode HardwareModuleName");
 | |
|     }
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| /*
 | |
|  * This necessarily duplicates code from libkrb5, and has to unless we move
 | |
|  * common code here or to lib/roken for it.  We do have slightly different
 | |
|  * needs (e.g., we want space quoted, and we want to indicate whether we saw
 | |
|  * trailing garbage, we have no need for flags, no special realm treatment,
 | |
|  * etc) than the corresponding code in libkrb5, so for now we duplicate this
 | |
|  * code.
 | |
|  *
 | |
|  * The relevant RFCs here are RFC1964 for the string representation of Kerberos
 | |
|  * principal names, and RFC4556 for the KRB5PrincipalName ASN.1 type (Kerberos
 | |
|  * lacks such a type because on the wire the name and realm are sent
 | |
|  * separately as a form of cheap compression).
 | |
|  *
 | |
|  * Note that we cannot handle embedded NULs because of Heimdal's representation
 | |
|  * of ASN.1 strings as C strings.
 | |
|  */
 | |
| int
 | |
| _hx509_unparse_KRB5PrincipalName(hx509_context context,
 | |
|                                  struct rk_strpool **strpool,
 | |
|                                  heim_any *value)
 | |
| {
 | |
|     KRB5PrincipalName kn;
 | |
|     size_t len;
 | |
|     int ret;
 | |
| 
 | |
|     ret = decode_KRB5PrincipalName(value->data, value->length, &kn, &len);
 | |
|     if (ret == 0 &&
 | |
|         (*strpool = _hx509_unparse_kerberos_name(*strpool, &kn)) == NULL)
 | |
|         ret = hx509_enomem(context);
 | |
|     free_KRB5PrincipalName(&kn);
 | |
|     if (ret == 0 && (value->length != len) &&
 | |
|         (*strpool = rk_strpoolprintf(*strpool, " <garbage>")) == NULL)
 | |
|         ret = hx509_enomem(context);
 | |
|     if (ret) {
 | |
|         rk_strpoolfree(*strpool);
 | |
|         *strpool = rk_strpoolprintf(NULL,
 | |
|                                     "<error-decoding-PrincipalName");
 | |
|         hx509_set_error_string(context, 0, ret,
 | |
|                                "Failed to decode PermanentIdentifier");
 | |
|     }
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| struct rk_strpool *
 | |
| _hx509_unparse_kerberos_name(struct rk_strpool *strpool, KRB5PrincipalName *kn)
 | |
| {
 | |
|     static const char comp_quotable_chars[] = " \n\t\b\\/@";
 | |
|     static const char realm_quotable_chars[] = " \n\t\b\\@";
 | |
|     const char *s;
 | |
|     size_t i, k, len, plen;
 | |
|     int need_slash = 0;
 | |
| 
 | |
|     for (i = 0; i < kn->principalName.name_string.len; i++) {
 | |
|         s = kn->principalName.name_string.val[i];
 | |
|         len = strlen(s);
 | |
| 
 | |
|         if (need_slash)
 | |
|             strpool = rk_strpoolprintf(strpool, "/");
 | |
|         need_slash = 1;
 | |
| 
 | |
|         for (k = 0; k < len; s += plen, k += plen) {
 | |
|             char c;
 | |
| 
 | |
|             plen = strcspn(s, comp_quotable_chars);
 | |
|             if (plen)
 | |
|                 strpool = rk_strpoolprintf(strpool, "%.*s", (int)plen, s);
 | |
|             if (k + plen >= len)
 | |
|                 continue;
 | |
|             switch ((c = s[plen++])) {
 | |
|             case '\n':  strpool = rk_strpoolprintf(strpool, "\\n");     break;
 | |
|             case '\t':  strpool = rk_strpoolprintf(strpool, "\\t");     break;
 | |
|             case '\b':  strpool = rk_strpoolprintf(strpool, "\\b");     break;
 | |
|                         /* default -> '@', ' ', '\\', or '/' */
 | |
|             default:    strpool = rk_strpoolprintf(strpool, "\\%c", c); break;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
|     if (!kn->realm)
 | |
|         return strpool;
 | |
|     strpool = rk_strpoolprintf(strpool, "@");
 | |
| 
 | |
|     s = kn->realm;
 | |
|     len = strlen(kn->realm);
 | |
|     for (k = 0; k < len; s += plen, k += plen) {
 | |
|         char c;
 | |
| 
 | |
|         plen = strcspn(s, realm_quotable_chars);
 | |
|         if (plen)
 | |
|             strpool = rk_strpoolprintf(strpool, "%.*s", (int)plen, s);
 | |
|         if (k + plen >= len)
 | |
|             continue;
 | |
|         switch ((c = s[plen++])) {
 | |
|         case '\n':  strpool = rk_strpoolprintf(strpool, "\\n");     break;
 | |
|         case '\t':  strpool = rk_strpoolprintf(strpool, "\\t");     break;
 | |
|         case '\b':  strpool = rk_strpoolprintf(strpool, "\\b");     break;
 | |
|                     /* default -> '@', ' ', or '\\' */
 | |
|         default:    strpool = rk_strpoolprintf(strpool, "\\%c", c); break;
 | |
|         }
 | |
|     }
 | |
|     return strpool;
 | |
| }
 | |
| 
 | |
| int
 | |
| _hx509_unparse_utf8_string_name(hx509_context context,
 | |
|                                 struct rk_strpool **strpool,
 | |
|                                 heim_any *value)
 | |
| {
 | |
|     PKIXXmppAddr us;
 | |
|     size_t size;
 | |
|     int ret;
 | |
| 
 | |
|     ret = decode_PKIXXmppAddr(value->data, value->length, &us, &size);
 | |
|     if (ret == 0 &&
 | |
|         (*strpool = rk_strpoolprintf(*strpool, "%s", us)) == NULL)
 | |
|         ret = hx509_enomem(context);
 | |
|     if (ret) {
 | |
|         rk_strpoolfree(*strpool);
 | |
|         *strpool = rk_strpoolprintf(NULL,
 | |
|                                     "<error-decoding-UTF8String-SAN>");
 | |
|         hx509_set_error_string(context, 0, ret,
 | |
|                                "Failed to decode UTF8String SAN");
 | |
|     }
 | |
|     free_PKIXXmppAddr(&us);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| int
 | |
| _hx509_unparse_ia5_string_name(hx509_context context,
 | |
|                                struct rk_strpool **strpool,
 | |
|                                heim_any *value)
 | |
| {
 | |
|     SRVName us;
 | |
|     size_t size;
 | |
|     int ret;
 | |
| 
 | |
|     ret = decode_SRVName(value->data, value->length, &us, &size);
 | |
|     if (ret == 0) {
 | |
|         rk_strpoolfree(*strpool);
 | |
|         *strpool = rk_strpoolprintf(NULL,
 | |
|                                     "<error-decoding-IA5String-SAN>");
 | |
|         hx509_set_error_string(context, 0, ret,
 | |
|                                "Failed to decode UTF8String SAN");
 | |
|         return ret;
 | |
|     }
 | |
|     *strpool = rk_strpoolprintf(*strpool, "%.*s",
 | |
|                                 (int)us.length, (char *)us.data);
 | |
|     free_SRVName(&us);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| typedef int (*other_unparser_f)(hx509_context,
 | |
|                                 struct rk_strpool **,
 | |
|                                 heim_any *);
 | |
| 
 | |
| struct {
 | |
|     const heim_oid *oid;
 | |
|     const char *friendly_name;
 | |
|     other_unparser_f f;
 | |
| } o_unparsers[] = {
 | |
|     { &asn1_oid_id_pkinit_san,
 | |
|         "KerberosPrincipalName",
 | |
|         _hx509_unparse_KRB5PrincipalName },
 | |
|     { &asn1_oid_id_pkix_on_permanentIdentifier,
 | |
|         "PermanentIdentifier",
 | |
|         _hx509_unparse_PermanentIdentifier },
 | |
|     { &asn1_oid_id_on_hardwareModuleName,
 | |
|         "HardwareModuleName",
 | |
|         _hx509_unparse_HardwareModuleName },
 | |
|     { &asn1_oid_id_pkix_on_xmppAddr,
 | |
|         "XMPPName",
 | |
|         _hx509_unparse_utf8_string_name },
 | |
|     { &asn1_oid_id_pkinit_ms_san,
 | |
|         "MSFTKerberosPrincipalName",
 | |
|         _hx509_unparse_utf8_string_name },
 | |
|     { &asn1_oid_id_pkix_on_dnsSRV,
 | |
|         "SRVName",
 | |
|         _hx509_unparse_ia5_string_name },
 | |
| };
 | |
| 
 | |
| /**
 | |
|  * Unparse the hx509 name in name into a string.
 | |
|  *
 | |
|  * @param name the name to print
 | |
|  * @param str an allocated string returns the name in string form
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_general_name_unparse(GeneralName *name, char **str)
 | |
| {
 | |
|     hx509_context context;
 | |
|     int ret;
 | |
| 
 | |
|     if ((ret = hx509_context_init(&context)))
 | |
|         return ret;
 | |
|     ret = hx509_general_name_unparse2(context, name, str);
 | |
|     hx509_context_free(&context);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * Unparse the hx509 name in name into a string.
 | |
|  *
 | |
|  * @param context hx509 library context
 | |
|  * @param name the name to print
 | |
|  * @param str an allocated string returns the name in string form
 | |
|  *
 | |
|  * @return An hx509 error code, see hx509_get_error_string().
 | |
|  *
 | |
|  * @ingroup hx509_name
 | |
|  */
 | |
| 
 | |
| HX509_LIB_FUNCTION int HX509_LIB_CALL
 | |
| hx509_general_name_unparse2(hx509_context context,
 | |
|                             GeneralName *name,
 | |
|                             char **str)
 | |
| {
 | |
|     struct rk_strpool *strpool = NULL;
 | |
|     int ret = 0;
 | |
| 
 | |
|     *str = NULL;
 | |
| 
 | |
|     switch (name->element) {
 | |
|     case choice_GeneralName_otherName: {
 | |
|         size_t i;
 | |
| 	char *oid;
 | |
| 
 | |
| 	ret = hx509_oid_sprint(&name->u.otherName.type_id, &oid);
 | |
|         if (ret == 0)
 | |
|             strpool = rk_strpoolprintf(strpool, "otherName: %s ", oid);
 | |
|         if (strpool == NULL)
 | |
|             ret = ENOMEM;
 | |
| 
 | |
|         for (i = 0; ret == 0 && i < sizeof(o_unparsers)/sizeof(o_unparsers[0]); i++) {
 | |
|             if (der_heim_oid_cmp(&name->u.otherName.type_id,
 | |
|                                  o_unparsers[i].oid))
 | |
|                 continue;
 | |
|             strpool = rk_strpoolprintf(strpool, "%s ",o_unparsers[i].friendly_name);
 | |
|             if (strpool == NULL)
 | |
|                 ret = ENOMEM;
 | |
|             if (ret == 0)
 | |
|                 ret = o_unparsers[i].f(context, &strpool, &name->u.otherName.value);
 | |
|             break;
 | |
|         }
 | |
|         if (ret == 0 && i == sizeof(o_unparsers)/sizeof(o_unparsers[0])) {
 | |
|             strpool = rk_strpoolprintf(strpool, "<unknown-other-name-type>");
 | |
|             ret = ENOTSUP;
 | |
|         }
 | |
| 	free(oid);
 | |
| 	break;
 | |
|     }
 | |
|     case choice_GeneralName_rfc822Name:
 | |
| 	strpool = rk_strpoolprintf(strpool, "rfc822Name: %.*s",
 | |
| 				   (int)name->u.rfc822Name.length,
 | |
| 				   (char *)name->u.rfc822Name.data);
 | |
| 	break;
 | |
|     case choice_GeneralName_dNSName:
 | |
| 	strpool = rk_strpoolprintf(strpool, "dNSName: %.*s",
 | |
| 				   (int)name->u.dNSName.length,
 | |
| 				   (char *)name->u.dNSName.data);
 | |
| 	break;
 | |
|     case choice_GeneralName_directoryName: {
 | |
| 	Name dir;
 | |
| 	char *s;
 | |
| 	memset(&dir, 0, sizeof(dir));
 | |
| 	dir.element = (enum Name_enum)name->u.directoryName.element;
 | |
| 	dir.u.rdnSequence = name->u.directoryName.u.rdnSequence;
 | |
| 	ret = _hx509_unparse_Name(&dir, &s);
 | |
| 	if (ret)
 | |
| 	    return ret;
 | |
| 	strpool = rk_strpoolprintf(strpool, "directoryName: %s", s);
 | |
| 	free(s);
 | |
| 	break;
 | |
|     }
 | |
|     case choice_GeneralName_uniformResourceIdentifier:
 | |
| 	strpool = rk_strpoolprintf(strpool, "URI: %.*s",
 | |
| 				   (int)name->u.uniformResourceIdentifier.length,
 | |
| 				   (char *)name->u.uniformResourceIdentifier.data);
 | |
| 	break;
 | |
|     case choice_GeneralName_iPAddress: {
 | |
| 	unsigned char *a = name->u.iPAddress.data;
 | |
| 
 | |
| 	strpool = rk_strpoolprintf(strpool, "IPAddress: ");
 | |
| 	if (strpool == NULL)
 | |
| 	    break;
 | |
| 	if (name->u.iPAddress.length == 4)
 | |
| 	    strpool = rk_strpoolprintf(strpool, "%d.%d.%d.%d",
 | |
| 				       a[0], a[1], a[2], a[3]);
 | |
| 	else if (name->u.iPAddress.length == 16)
 | |
| 	    strpool = rk_strpoolprintf(strpool,
 | |
| 				       "%02X:%02X:%02X:%02X:"
 | |
| 				       "%02X:%02X:%02X:%02X:"
 | |
| 				       "%02X:%02X:%02X:%02X:"
 | |
| 				       "%02X:%02X:%02X:%02X",
 | |
| 				       a[0], a[1], a[2], a[3],
 | |
| 				       a[4], a[5], a[6], a[7],
 | |
| 				       a[8], a[9], a[10], a[11],
 | |
| 				       a[12], a[13], a[14], a[15]);
 | |
| 	else
 | |
| 	    strpool = rk_strpoolprintf(strpool,
 | |
| 				       "unknown IP address of length %lu",
 | |
| 				       (unsigned long)name->u.iPAddress.length);
 | |
| 	break;
 | |
|     }
 | |
|     case choice_GeneralName_registeredID: {
 | |
| 	char *oid;
 | |
| 	hx509_oid_sprint(&name->u.registeredID, &oid);
 | |
| 	if (oid == NULL)
 | |
| 	    return ENOMEM;
 | |
| 	strpool = rk_strpoolprintf(strpool, "registeredID: %s", oid);
 | |
| 	free(oid);
 | |
| 	break;
 | |
|     }
 | |
|     default:
 | |
| 	return EINVAL;
 | |
|     }
 | |
|     if (ret)
 | |
|         rk_strpoolfree(strpool);
 | |
|     else if (strpool == NULL || (*str = rk_strpoolcollect(strpool)) == NULL)
 | |
| 	return ENOMEM;
 | |
|     return ret;
 | |
| }
 | 
