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/*
SSSD
Authors:
Sumit Bose <sbose@redhat.com>
Copyright (C) 2016 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/>.
*/
#include "providers/ad/ad_pac.h"
#include "util/util.h"
errno_t ad_get_data_from_pac(TALLOC_CTX *mem_ctx,
uint8_t *pac_blob, size_t pac_len,
struct PAC_LOGON_INFO **_logon_info)
{
DATA_BLOB blob;
struct ndr_pull *ndr_pull;
struct PAC_DATA *pac_data;
enum ndr_err_code ndr_err;
size_t c;
int ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "talloc_new failed.\n");
return ENOMEM;
}
blob.data = pac_blob;
blob.length = pac_len;
ndr_pull = ndr_pull_init_blob(&blob, tmp_ctx);
if (ndr_pull == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "ndr_pull_init_blob failed.\n");
ret = ENOMEM;
goto done;
}
ndr_pull->flags |= LIBNDR_FLAG_REF_ALLOC; /* FIXME: is this really needed ? */
pac_data = talloc_zero(tmp_ctx, struct PAC_DATA);
if (pac_data == NULL) {
DEBUG(SSSDBG_OP_FAILURE, "talloc_zero failed.\n");
ret = ENOMEM;
goto done;
}
ndr_err = ndr_pull_PAC_DATA(ndr_pull, NDR_SCALARS|NDR_BUFFERS, pac_data);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(SSSDBG_OP_FAILURE, "ndr_pull_PAC_DATA failed [%d]\n", ndr_err);
ret = EBADMSG;
goto done;
}
for(c = 0; c < pac_data->num_buffers; c++) {
if (pac_data->buffers[c].type == PAC_TYPE_LOGON_INFO) {
*_logon_info = talloc_steal(mem_ctx,
pac_data->buffers[c].info->logon_info.info);
ret = EOK;
goto done;
}
}
ret = EINVAL;
done:
talloc_free(tmp_ctx);
return ret;
}
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