mirror of
https://github.com/samba-team/samba.git
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529763a9aa
lib/messaging/
lib/registry/
lib/ldb-samba/
librpc/rpc/
auth/auth_winbind.c
auth/gensec/
auth/kerberos/
dsdb/repl/
dsdb/samdb/
dsdb/schema/
torture/
cluster/ctdb/
kdc/
ntvfs/ipc/
torture/rap/
ntvfs/
utils/getntacl.c
ntptr/
smb_server/
libcli/wrepl/
wrepl_server/
libcli/cldap/
libcli/dgram/
libcli/ldap/
libcli/raw/
libcli/nbt/
libnet/
winbind/
rpc_server/
metze
(This used to be commit 6223c7fddc
)
635 lines
18 KiB
C
635 lines
18 KiB
C
/*
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Unix SMB/CIFS implementation.
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Create and parse the krb5 PAC
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
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Copyright (C) Andrew Tridgell 2001
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Copyright (C) Luke Howard 2002-2003
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Copyright (C) Stefan Metzmacher 2004-2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/kerberos.h"
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#include "auth/kerberos/kerberos.h"
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#include "librpc/gen_ndr/ndr_krb5pac.h"
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#include "lib/ldb/include/ldb.h"
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#include "auth/auth_sam.h"
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static krb5_error_code check_pac_checksum(TALLOC_CTX *mem_ctx,
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DATA_BLOB pac_data,
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struct PAC_SIGNATURE_DATA *sig,
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krb5_context context,
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const krb5_keyblock *keyblock)
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{
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krb5_error_code ret;
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krb5_crypto crypto;
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Checksum cksum;
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cksum.cksumtype = (CKSUMTYPE)sig->type;
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cksum.checksum.length = sig->signature.length;
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cksum.checksum.data = sig->signature.data;
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ret = krb5_crypto_init(context,
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keyblock,
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0,
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&crypto);
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if (ret) {
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DEBUG(0,("krb5_crypto_init() failed: %s\n",
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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return ret;
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}
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ret = krb5_verify_checksum(context,
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crypto,
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KRB5_KU_OTHER_CKSUM,
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pac_data.data,
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pac_data.length,
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&cksum);
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krb5_crypto_destroy(context, crypto);
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return ret;
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}
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NTSTATUS kerberos_decode_pac(TALLOC_CTX *mem_ctx,
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struct PAC_DATA **pac_data_out,
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DATA_BLOB blob,
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krb5_context context,
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const krb5_keyblock *krbtgt_keyblock,
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const krb5_keyblock *service_keyblock,
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krb5_const_principal client_principal,
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time_t tgs_authtime,
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krb5_error_code *k5ret)
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{
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krb5_error_code ret;
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NTSTATUS status;
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enum ndr_err_code ndr_err;
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struct PAC_SIGNATURE_DATA *srv_sig_ptr = NULL;
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struct PAC_SIGNATURE_DATA *kdc_sig_ptr = NULL;
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struct PAC_SIGNATURE_DATA *srv_sig_wipe = NULL;
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struct PAC_SIGNATURE_DATA *kdc_sig_wipe = NULL;
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struct PAC_LOGON_INFO *logon_info = NULL;
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struct PAC_LOGON_NAME *logon_name = NULL;
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struct PAC_DATA *pac_data;
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struct PAC_DATA_RAW *pac_data_raw;
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DATA_BLOB *srv_sig_blob = NULL;
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DATA_BLOB *kdc_sig_blob = NULL;
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DATA_BLOB modified_pac_blob;
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NTTIME tgs_authtime_nttime;
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krb5_principal client_principal_pac;
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int i;
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krb5_clear_error_string(context);
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if (k5ret) {
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*k5ret = KRB5_PARSE_MALFORMED;
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}
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pac_data = talloc(mem_ctx, struct PAC_DATA);
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pac_data_raw = talloc(mem_ctx, struct PAC_DATA_RAW);
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kdc_sig_wipe = talloc(mem_ctx, struct PAC_SIGNATURE_DATA);
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srv_sig_wipe = talloc(mem_ctx, struct PAC_SIGNATURE_DATA);
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if (!pac_data_raw || !pac_data || !kdc_sig_wipe || !srv_sig_wipe) {
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if (k5ret) {
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*k5ret = ENOMEM;
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}
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return NT_STATUS_NO_MEMORY;
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}
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ndr_err = ndr_pull_struct_blob(&blob, pac_data, pac_data,
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(ndr_pull_flags_fn_t)ndr_pull_PAC_DATA);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't parse the PAC: %s\n",
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nt_errstr(status)));
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return status;
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}
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if (pac_data->num_buffers < 4) {
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/* we need logon_ingo, service_key and kdc_key */
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DEBUG(0,("less than 4 PAC buffers\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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ndr_err = ndr_pull_struct_blob(&blob, pac_data_raw, pac_data_raw,
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(ndr_pull_flags_fn_t)ndr_pull_PAC_DATA_RAW);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't parse the PAC: %s\n",
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nt_errstr(status)));
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return status;
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}
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if (pac_data_raw->num_buffers < 4) {
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/* we need logon_ingo, service_key and kdc_key */
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DEBUG(0,("less than 4 PAC buffers\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (pac_data->num_buffers != pac_data_raw->num_buffers) {
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/* we need logon_ingo, service_key and kdc_key */
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DEBUG(0,("misparse! PAC_DATA has %d buffers while PAC_DATA_RAW has %d\n",
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pac_data->num_buffers, pac_data_raw->num_buffers));
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return NT_STATUS_INVALID_PARAMETER;
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}
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for (i=0; i < pac_data->num_buffers; i++) {
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if (pac_data->buffers[i].type != pac_data_raw->buffers[i].type) {
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DEBUG(0,("misparse! PAC_DATA buffer %d has type %d while PAC_DATA_RAW has %d\n",
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i, pac_data->buffers[i].type, pac_data->buffers[i].type));
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return NT_STATUS_INVALID_PARAMETER;
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}
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switch (pac_data->buffers[i].type) {
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case PAC_TYPE_LOGON_INFO:
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if (!pac_data->buffers[i].info) {
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break;
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}
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logon_info = pac_data->buffers[i].info->logon_info.info;
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break;
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case PAC_TYPE_SRV_CHECKSUM:
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if (!pac_data->buffers[i].info) {
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break;
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}
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srv_sig_ptr = &pac_data->buffers[i].info->srv_cksum;
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srv_sig_blob = &pac_data_raw->buffers[i].info->remaining;
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break;
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case PAC_TYPE_KDC_CHECKSUM:
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if (!pac_data->buffers[i].info) {
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break;
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}
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kdc_sig_ptr = &pac_data->buffers[i].info->kdc_cksum;
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kdc_sig_blob = &pac_data_raw->buffers[i].info->remaining;
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break;
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case PAC_TYPE_LOGON_NAME:
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logon_name = &pac_data->buffers[i].info->logon_name;
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break;
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default:
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break;
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}
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}
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if (!logon_info) {
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DEBUG(0,("PAC no logon_info\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (!logon_name) {
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DEBUG(0,("PAC no logon_name\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (!srv_sig_ptr || !srv_sig_blob) {
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DEBUG(0,("PAC no srv_key\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (!kdc_sig_ptr || !kdc_sig_blob) {
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DEBUG(0,("PAC no kdc_key\n"));
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return NT_STATUS_INVALID_PARAMETER;
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}
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/* Find and zero out the signatures, as required by the signing algorithm */
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/* We find the data blobs above, now we parse them to get at the exact portion we should zero */
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ndr_err = ndr_pull_struct_blob(kdc_sig_blob, kdc_sig_wipe, kdc_sig_wipe,
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(ndr_pull_flags_fn_t)ndr_pull_PAC_SIGNATURE_DATA);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't parse the KDC signature: %s\n",
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nt_errstr(status)));
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return status;
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}
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ndr_err = ndr_pull_struct_blob(srv_sig_blob, srv_sig_wipe, srv_sig_wipe,
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(ndr_pull_flags_fn_t)ndr_pull_PAC_SIGNATURE_DATA);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't parse the SRV signature: %s\n",
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nt_errstr(status)));
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return status;
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}
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/* Now zero the decoded structure */
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memset(kdc_sig_wipe->signature.data, '\0', kdc_sig_wipe->signature.length);
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memset(srv_sig_wipe->signature.data, '\0', srv_sig_wipe->signature.length);
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/* and reencode, back into the same place it came from */
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ndr_err = ndr_push_struct_blob(kdc_sig_blob, pac_data_raw, kdc_sig_wipe,
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(ndr_push_flags_fn_t)ndr_push_PAC_SIGNATURE_DATA);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't repack the KDC signature: %s\n",
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nt_errstr(status)));
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return status;
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}
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ndr_err = ndr_push_struct_blob(srv_sig_blob, pac_data_raw, srv_sig_wipe,
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(ndr_push_flags_fn_t)ndr_push_PAC_SIGNATURE_DATA);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't repack the SRV signature: %s\n",
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nt_errstr(status)));
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return status;
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}
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/* push out the whole structure, but now with zero'ed signatures */
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ndr_err = ndr_push_struct_blob(&modified_pac_blob, pac_data_raw, pac_data_raw,
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(ndr_push_flags_fn_t)ndr_push_PAC_DATA_RAW);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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status = ndr_map_error2ntstatus(ndr_err);
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DEBUG(0,("can't repack the RAW PAC: %s\n",
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nt_errstr(status)));
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return status;
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}
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/* verify by service_key */
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ret = check_pac_checksum(mem_ctx,
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modified_pac_blob, srv_sig_ptr,
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context,
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service_keyblock);
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if (ret) {
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DEBUG(1, ("PAC Decode: Failed to verify the service signature: %s\n",
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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if (k5ret) {
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*k5ret = ret;
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}
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return NT_STATUS_ACCESS_DENIED;
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}
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if (krbtgt_keyblock) {
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ret = check_pac_checksum(mem_ctx,
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srv_sig_ptr->signature, kdc_sig_ptr,
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context, krbtgt_keyblock);
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if (ret) {
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DEBUG(1, ("PAC Decode: Failed to verify the KDC signature: %s\n",
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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if (k5ret) {
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*k5ret = ret;
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}
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return NT_STATUS_ACCESS_DENIED;
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}
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}
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/* Convert to NT time, so as not to loose accuracy in comparison */
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unix_to_nt_time(&tgs_authtime_nttime, tgs_authtime);
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if (tgs_authtime_nttime != logon_name->logon_time) {
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DEBUG(2, ("PAC Decode: Logon time mismatch between ticket and PAC!\n"));
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DEBUG(2, ("PAC Decode: PAC: %s\n", nt_time_string(mem_ctx, logon_name->logon_time)));
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DEBUG(2, ("PAC Decode: Ticket: %s\n", nt_time_string(mem_ctx, tgs_authtime_nttime)));
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return NT_STATUS_ACCESS_DENIED;
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}
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ret = krb5_parse_name_flags(context, logon_name->account_name, KRB5_PRINCIPAL_PARSE_NO_REALM,
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&client_principal_pac);
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if (ret) {
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DEBUG(2, ("Could not parse name from incoming PAC: [%s]: %s\n",
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logon_name->account_name,
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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if (k5ret) {
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*k5ret = ret;
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}
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return NT_STATUS_INVALID_PARAMETER;
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}
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if (!krb5_principal_compare_any_realm(context, client_principal, client_principal_pac)) {
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DEBUG(2, ("Name in PAC [%s] does not match principal name in ticket\n",
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logon_name->account_name));
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return NT_STATUS_ACCESS_DENIED;
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}
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#if 0
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if (strcasecmp(logon_info->info3.base.account_name.string,
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"Administrator")== 0) {
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file_save("tmp_pac_data-admin.dat",blob.data,blob.length);
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}
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#endif
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DEBUG(3,("Found account name from PAC: %s [%s]\n",
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logon_info->info3.base.account_name.string,
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logon_info->info3.base.full_name.string));
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*pac_data_out = pac_data;
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return NT_STATUS_OK;
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}
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_PUBLIC_ NTSTATUS kerberos_pac_logon_info(TALLOC_CTX *mem_ctx,
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struct PAC_LOGON_INFO **logon_info,
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DATA_BLOB blob,
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krb5_context context,
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const krb5_keyblock *krbtgt_keyblock,
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const krb5_keyblock *service_keyblock,
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krb5_const_principal client_principal,
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time_t tgs_authtime,
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krb5_error_code *k5ret)
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{
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NTSTATUS nt_status;
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struct PAC_DATA *pac_data;
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int i;
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nt_status = kerberos_decode_pac(mem_ctx, &pac_data,
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blob,
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context,
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krbtgt_keyblock,
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service_keyblock,
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client_principal,
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tgs_authtime,
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k5ret);
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if (!NT_STATUS_IS_OK(nt_status)) {
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return nt_status;
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}
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*logon_info = NULL;
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for (i=0; i < pac_data->num_buffers; i++) {
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if (pac_data->buffers[i].type != PAC_TYPE_LOGON_INFO) {
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continue;
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}
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*logon_info = pac_data->buffers[i].info->logon_info.info;
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}
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if (!*logon_info) {
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return NT_STATUS_INVALID_PARAMETER;
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}
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return NT_STATUS_OK;
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}
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static krb5_error_code make_pac_checksum(TALLOC_CTX *mem_ctx,
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DATA_BLOB *pac_data,
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struct PAC_SIGNATURE_DATA *sig,
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krb5_context context,
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const krb5_keyblock *keyblock)
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{
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krb5_error_code ret;
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krb5_crypto crypto;
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Checksum cksum;
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ret = krb5_crypto_init(context,
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keyblock,
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0,
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&crypto);
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if (ret) {
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DEBUG(0,("krb5_crypto_init() failed: %s\n",
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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return ret;
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}
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ret = krb5_create_checksum(context,
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crypto,
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KRB5_KU_OTHER_CKSUM,
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0,
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pac_data->data,
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pac_data->length,
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&cksum);
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if (ret) {
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DEBUG(2, ("PAC Verification failed: %s\n",
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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}
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krb5_crypto_destroy(context, crypto);
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if (ret) {
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return ret;
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}
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sig->type = cksum.cksumtype;
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sig->signature = data_blob_talloc(mem_ctx, cksum.checksum.data, cksum.checksum.length);
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free_Checksum(&cksum);
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return 0;
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}
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krb5_error_code kerberos_encode_pac(TALLOC_CTX *mem_ctx,
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struct PAC_DATA *pac_data,
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krb5_context context,
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const krb5_keyblock *krbtgt_keyblock,
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const krb5_keyblock *service_keyblock,
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DATA_BLOB *pac)
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{
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NTSTATUS nt_status;
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krb5_error_code ret;
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enum ndr_err_code ndr_err;
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DATA_BLOB zero_blob = data_blob(NULL, 0);
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DATA_BLOB tmp_blob = data_blob(NULL, 0);
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struct PAC_SIGNATURE_DATA *kdc_checksum = NULL;
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struct PAC_SIGNATURE_DATA *srv_checksum = NULL;
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int i;
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/* First, just get the keytypes filled in (and lengths right, eventually) */
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for (i=0; i < pac_data->num_buffers; i++) {
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if (pac_data->buffers[i].type != PAC_TYPE_KDC_CHECKSUM) {
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continue;
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}
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kdc_checksum = &pac_data->buffers[i].info->kdc_cksum,
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ret = make_pac_checksum(mem_ctx, &zero_blob,
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kdc_checksum,
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context, krbtgt_keyblock);
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if (ret) {
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DEBUG(2, ("making krbtgt PAC checksum failed: %s\n",
|
|
smb_get_krb5_error_message(context, ret, mem_ctx)));
|
|
talloc_free(pac_data);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
for (i=0; i < pac_data->num_buffers; i++) {
|
|
if (pac_data->buffers[i].type != PAC_TYPE_SRV_CHECKSUM) {
|
|
continue;
|
|
}
|
|
srv_checksum = &pac_data->buffers[i].info->srv_cksum;
|
|
ret = make_pac_checksum(mem_ctx, &zero_blob,
|
|
srv_checksum,
|
|
context, service_keyblock);
|
|
if (ret) {
|
|
DEBUG(2, ("making service PAC checksum failed: %s\n",
|
|
smb_get_krb5_error_message(context, ret, mem_ctx)));
|
|
talloc_free(pac_data);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (!kdc_checksum) {
|
|
DEBUG(2, ("Invalid PAC constructed for signing, no KDC checksum present!"));
|
|
return EINVAL;
|
|
}
|
|
if (!srv_checksum) {
|
|
DEBUG(2, ("Invalid PAC constructed for signing, no SRV checksum present!"));
|
|
return EINVAL;
|
|
}
|
|
|
|
/* But wipe out the actual signatures */
|
|
memset(kdc_checksum->signature.data, '\0', kdc_checksum->signature.length);
|
|
memset(srv_checksum->signature.data, '\0', srv_checksum->signature.length);
|
|
|
|
ndr_err = ndr_push_struct_blob(&tmp_blob, mem_ctx, pac_data,
|
|
(ndr_push_flags_fn_t)ndr_push_PAC_DATA);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
nt_status = ndr_map_error2ntstatus(ndr_err);
|
|
DEBUG(1, ("PAC (presig) push failed: %s\n", nt_errstr(nt_status)));
|
|
talloc_free(pac_data);
|
|
return EINVAL;
|
|
}
|
|
|
|
/* Then sign the result of the previous push, where the sig was zero'ed out */
|
|
ret = make_pac_checksum(mem_ctx, &tmp_blob, srv_checksum,
|
|
context, service_keyblock);
|
|
|
|
/* Then sign Server checksum */
|
|
ret = make_pac_checksum(mem_ctx, &srv_checksum->signature, kdc_checksum, context, krbtgt_keyblock);
|
|
if (ret) {
|
|
DEBUG(2, ("making krbtgt PAC checksum failed: %s\n",
|
|
smb_get_krb5_error_message(context, ret, mem_ctx)));
|
|
talloc_free(pac_data);
|
|
return ret;
|
|
}
|
|
|
|
/* And push it out again, this time to the world. This relies on determanistic pointer values */
|
|
ndr_err = ndr_push_struct_blob(&tmp_blob, mem_ctx, pac_data,
|
|
(ndr_push_flags_fn_t)ndr_push_PAC_DATA);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
nt_status = ndr_map_error2ntstatus(ndr_err);
|
|
DEBUG(1, ("PAC (final) push failed: %s\n", nt_errstr(nt_status)));
|
|
talloc_free(pac_data);
|
|
return EINVAL;
|
|
}
|
|
|
|
*pac = tmp_blob;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
krb5_error_code kerberos_create_pac(TALLOC_CTX *mem_ctx,
|
|
struct auth_serversupplied_info *server_info,
|
|
krb5_context context,
|
|
const krb5_keyblock *krbtgt_keyblock,
|
|
const krb5_keyblock *service_keyblock,
|
|
krb5_principal client_principal,
|
|
time_t tgs_authtime,
|
|
DATA_BLOB *pac)
|
|
{
|
|
NTSTATUS nt_status;
|
|
krb5_error_code ret;
|
|
struct PAC_DATA *pac_data = talloc(mem_ctx, struct PAC_DATA);
|
|
struct netr_SamInfo3 *sam3;
|
|
union PAC_INFO *u_LOGON_INFO;
|
|
struct PAC_LOGON_INFO *LOGON_INFO;
|
|
union PAC_INFO *u_LOGON_NAME;
|
|
struct PAC_LOGON_NAME *LOGON_NAME;
|
|
union PAC_INFO *u_KDC_CHECKSUM;
|
|
union PAC_INFO *u_SRV_CHECKSUM;
|
|
|
|
char *name;
|
|
|
|
enum {
|
|
PAC_BUF_LOGON_INFO = 0,
|
|
PAC_BUF_LOGON_NAME = 1,
|
|
PAC_BUF_SRV_CHECKSUM = 2,
|
|
PAC_BUF_KDC_CHECKSUM = 3,
|
|
PAC_BUF_NUM_BUFFERS = 4
|
|
};
|
|
|
|
if (!pac_data) {
|
|
return ENOMEM;
|
|
}
|
|
|
|
pac_data->num_buffers = PAC_BUF_NUM_BUFFERS;
|
|
pac_data->version = 0;
|
|
|
|
pac_data->buffers = talloc_array(pac_data,
|
|
struct PAC_BUFFER,
|
|
pac_data->num_buffers);
|
|
if (!pac_data->buffers) {
|
|
talloc_free(pac_data);
|
|
return ENOMEM;
|
|
}
|
|
|
|
/* LOGON_INFO */
|
|
u_LOGON_INFO = talloc_zero(pac_data->buffers, union PAC_INFO);
|
|
if (!u_LOGON_INFO) {
|
|
talloc_free(pac_data);
|
|
return ENOMEM;
|
|
}
|
|
pac_data->buffers[PAC_BUF_LOGON_INFO].type = PAC_TYPE_LOGON_INFO;
|
|
pac_data->buffers[PAC_BUF_LOGON_INFO].info = u_LOGON_INFO;
|
|
|
|
/* LOGON_NAME */
|
|
u_LOGON_NAME = talloc_zero(pac_data->buffers, union PAC_INFO);
|
|
if (!u_LOGON_NAME) {
|
|
talloc_free(pac_data);
|
|
return ENOMEM;
|
|
}
|
|
pac_data->buffers[PAC_BUF_LOGON_NAME].type = PAC_TYPE_LOGON_NAME;
|
|
pac_data->buffers[PAC_BUF_LOGON_NAME].info = u_LOGON_NAME;
|
|
LOGON_NAME = &u_LOGON_NAME->logon_name;
|
|
|
|
/* SRV_CHECKSUM */
|
|
u_SRV_CHECKSUM = talloc_zero(pac_data->buffers, union PAC_INFO);
|
|
if (!u_SRV_CHECKSUM) {
|
|
talloc_free(pac_data);
|
|
return ENOMEM;
|
|
}
|
|
pac_data->buffers[PAC_BUF_SRV_CHECKSUM].type = PAC_TYPE_SRV_CHECKSUM;
|
|
pac_data->buffers[PAC_BUF_SRV_CHECKSUM].info = u_SRV_CHECKSUM;
|
|
|
|
/* KDC_CHECKSUM */
|
|
u_KDC_CHECKSUM = talloc_zero(pac_data->buffers, union PAC_INFO);
|
|
if (!u_KDC_CHECKSUM) {
|
|
talloc_free(pac_data);
|
|
return ENOMEM;
|
|
}
|
|
pac_data->buffers[PAC_BUF_KDC_CHECKSUM].type = PAC_TYPE_KDC_CHECKSUM;
|
|
pac_data->buffers[PAC_BUF_KDC_CHECKSUM].info = u_KDC_CHECKSUM;
|
|
|
|
/* now the real work begins... */
|
|
|
|
LOGON_INFO = talloc_zero(u_LOGON_INFO, struct PAC_LOGON_INFO);
|
|
if (!LOGON_INFO) {
|
|
talloc_free(pac_data);
|
|
return ENOMEM;
|
|
}
|
|
nt_status = auth_convert_server_info_saminfo3(LOGON_INFO, server_info, &sam3);
|
|
if (!NT_STATUS_IS_OK(nt_status)) {
|
|
DEBUG(1, ("Getting Samba info failed: %s\n", nt_errstr(nt_status)));
|
|
talloc_free(pac_data);
|
|
return EINVAL;
|
|
}
|
|
|
|
u_LOGON_INFO->logon_info.info = LOGON_INFO;
|
|
LOGON_INFO->info3 = *sam3;
|
|
|
|
ret = krb5_unparse_name_flags(context, client_principal,
|
|
KRB5_PRINCIPAL_UNPARSE_NO_REALM, &name);
|
|
if (ret) {
|
|
return ret;
|
|
}
|
|
LOGON_NAME->account_name = talloc_strdup(LOGON_NAME, name);
|
|
free(name);
|
|
/*
|
|
this logon_time field is absolutely critical. This is what
|
|
caused all our PAC troubles :-)
|
|
*/
|
|
unix_to_nt_time(&LOGON_NAME->logon_time, tgs_authtime);
|
|
|
|
ret = kerberos_encode_pac(mem_ctx,
|
|
pac_data,
|
|
context,
|
|
krbtgt_keyblock,
|
|
service_keyblock,
|
|
pac);
|
|
talloc_free(pac_data);
|
|
return ret;
|
|
}
|
|
|