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/*
Unix SMB/CIFS implementation.
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
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/>.
*/
#include "includes.h"
#include "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
#include <hdb.h>
#include "kdc/samba_kdc.h"
#include "libnet/libnet_export_keytab.h"
NTSTATUS libnet_export_keytab(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_export_keytab *r)
{
krb5_error_code ret;
struct smb_krb5_context *smb_krb5_context;
const char *from_keytab;
/* Register hdb-samba4 hooks for use as a keytab */
struct samba_kdc_base_context *base_ctx = talloc_zero(mem_ctx, struct samba_kdc_base_context);
if (!base_ctx) {
return NT_STATUS_NO_MEMORY;
}
base_ctx->ev_ctx = ctx->event_ctx;
base_ctx->lp_ctx = ctx->lp_ctx;
from_keytab = talloc_asprintf(base_ctx, "HDB:samba4&%p", base_ctx);
if (!from_keytab) {
return NT_STATUS_NO_MEMORY;
}
ret = smb_krb5_init_context(ctx, ctx->event_ctx, ctx->lp_ctx, &smb_krb5_context);
if (ret) {
return NT_STATUS_NO_MEMORY;
}
ret = krb5_plugin_register(smb_krb5_context->krb5_context,
PLUGIN_TYPE_DATA, "hdb",
&hdb_samba4_interface);
if(ret) {
return NT_STATUS_NO_MEMORY;
}
ret = krb5_kt_register(smb_krb5_context->krb5_context, &hdb_kt_ops);
if(ret) {
return NT_STATUS_NO_MEMORY;
}
if (r->in.principal) {
/* TODO: Find a way not to have to use a fixed list */
krb5_enctype enctypes[] = {
KRB5_ENCTYPE_DES_CBC_CRC,
KRB5_ENCTYPE_DES_CBC_MD5,
KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96,
KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96,
KRB5_ENCTYPE_ARCFOUR_HMAC_MD5
};
ret = kt_copy_one_principal(smb_krb5_context->krb5_context, from_keytab, r->in.keytab_name, r->in.principal, 0, enctypes);
} else {
unlink(r->in.keytab_name);
ret = kt_copy(smb_krb5_context->krb5_context, from_keytab, r->in.keytab_name);
}
if(ret) {
r->out.error_string = smb_get_krb5_error_message(smb_krb5_context->krb5_context,
ret, mem_ctx);
if (ret == KRB5_KT_NOTFOUND) {
return NT_STATUS_NO_SUCH_USER;
} else {
return NT_STATUS_UNSUCCESSFUL;
}
}
return NT_STATUS_OK;
}
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