/*
SSSD
Library for rule based certificate to user mapping - Attribute name
mapping for different implementations
Authors:
Sumit Bose <sbose@redhat.com>
Copyright (C) 2017 Red Hat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* NSS data taken from nss-utils:nss/lib/util/secoid.c and
* nss:nss/lib/certdb/alg1485.c */
/* AD data taken from
* https://msdn.microsoft.com/en-us/library/windows/desktop/aa376556%28v=vs.85%29.aspx
* and wine source code dlls/crypt32/oid.c  and include/wincrypt.h . */
/* OpenSSL data taken from include/openssl/obj_mac.h */
#include <stdbool.h>
#include <string.h>
#include <talloc.h>
struct oid_attr_name_map {
bool nss_ad_differ;
bool nss_openssl_differ;
const char *oid;
const char *nss;
const char *ad;
const char *openssl;
} oid_attr_name_map[] = {
{ false, false, "2.5.4.3", "CN", "CN", "CN"},
{ true, false, "2.5.4.8", "ST", "S", "ST"},
{ false, false, "2.5.4.10", "O", "O", "O"},
{ false, false, "2.5.4.11", "OU", "OU", "OU"},
{ false, false, "2.5.4.46", "dnQualifier", "dnQualifier", "dnQualifier"},
{ false, false, "2.5.4.6", "C", "C", "C"},
{ true, false, "2.5.4.5", "serialNumber", "SERIALNUMBER", "serialNumber"},
{ false, false, "2.5.4.7", "L", "L", "L"},
{ true, false, "2.5.4.12", "title", "T", "title"},
{ false, false, "2.5.4.4", "SN", "SN", "SN"},
{ true, true, "2.5.4.42", "givenName", "G", "GN"},
{ true, false, "2.5.4.43", "initials", "I", "initials"},
{ true, false, "2.5.4.44", "generationQualifier", "OID.2.5.4.44", "generationQualifier"},
{ false, false, "0.9.2342.19200300.100.1.25", "DC", "DC", "DC"},
{ true, true, "0.9.2342.19200300.100.1.3", "MAIL", "OID,0.9.2342.19200300.100.1.3", "mail"},
{ true, false, "0.9.2342.19200300.100.1.1", "UID", "OID.0.9.2342.19200300.100.1.1", "UID"},
{ true, true, "2.5.4.13", "OID.2.5.4.13", "Description", "description"},
{ true, false, "2.5.4.16", "postalAddress", "OID.2.5.4.16", "postalAddress"},
{ true, false, "2.5.4.17", "postalCode", "PostalCode", "postalCode"},
{ true, false, "2.5.4.18", "postOfficeBox", "POBox", "postOfficeBox"},
{ true, false, "2.5.4.51", "houseIdentifier", "OID.2.5.4.51", "houseIdentifier"},
{ false, true, "1.2.840.113549.1.9.1", "E", "E", "emailAddress"},
{ false, true, "2.5.4.9", "STREET", "STREET", "street"},
{ true, false, "2.5.4.65", "pseudonym", "OID.2.5.4.65", "pseudonym"},
{ true, false, "2.5.4.15", "businessCategory", "OID.2.5.4.15", "businessCategory"},
{ true, false, "2.5.4.41", "name", "OID.2.5.4.41", "name"},
{ false, false, NULL, NULL, NULL, NULL}
};
char *check_ad_attr_name(TALLOC_CTX *mem_ctx, const char *rdn)
{
char *p;
size_t c;
size_t len;
if (rdn == NULL) {
return NULL;
}
p = strchr(rdn, '=');
if (p == NULL) {
return NULL;
}
len = p - rdn;
if (len == 0) {
return NULL;
}
for (c = 0; oid_attr_name_map[c].oid != NULL; c++) {
if (!oid_attr_name_map[c].nss_ad_differ) {
continue;
}
if (strlen(oid_attr_name_map[c].nss) != len
|| strncmp(rdn, oid_attr_name_map[c].nss, len) != 0) {
continue;
}
return talloc_asprintf(mem_ctx, "%s%s", oid_attr_name_map[c].ad, p);
}
return NULL;
}
const char *openssl_2_nss_attr_name(const char *attr)
{
size_t c;
if (attr == NULL) {
return NULL;
}
for (c = 0; oid_attr_name_map[c].oid != NULL; c++) {
if (!oid_attr_name_map[c].nss_openssl_differ) {
continue;
}
if (strcmp(attr, oid_attr_name_map[c].openssl) != 0) {
continue;
}
return oid_attr_name_map[c].nss;
}
return attr;
}