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b8f4e0796d
that the logon_time field in the pac must match the authtime field in the ticket we
gave the client in the AS-REP (and thus also the authtime field in the ticket we get
back in the TGS-REQ).
Many thanks to Andrew Bartlett for his patience in showing me the
basic ropes of all this code! This was a joint effort.
(This used to be commit 7bee374b3f)
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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PAC Glue between Samba and the KDC
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 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 2 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, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "kdc/kdc.h"
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#include "kdc/pac-glue.h" /* Ensure we don't get this prototype wrong, as that could be painful */
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krb5_error_code samba_get_pac(krb5_context context,
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struct krb5_kdc_configuration *config,
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krb5_principal client,
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krb5_keyblock *krbtgt_keyblock,
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krb5_keyblock *server_keyblock,
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time_t tgs_authtime,
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krb5_data *pac)
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{
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krb5_error_code ret;
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NTSTATUS nt_status;
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struct auth_serversupplied_info *server_info;
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char *username, *p;
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const char *realm;
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DATA_BLOB tmp_blob;
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TALLOC_CTX *mem_ctx = talloc_named(config, 0, "samba_get_pac context");
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if (!mem_ctx) {
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return ENOMEM;
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}
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ret = krb5_unparse_name(context, client, &username);
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if (ret != 0) {
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krb5_set_error_string(context, "get pac: could not parse principal");
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krb5_warnx(context, "get pac: could not parse principal");
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talloc_free(mem_ctx);
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return ret;
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}
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/* parse the principal name */
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realm = krb5_principal_get_realm(context, client);
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username = talloc_strdup(mem_ctx, username);
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p = strchr(username, '@');
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if (p) {
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p[0] = '\0';
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}
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nt_status = sam_get_server_info(mem_ctx, username, realm,
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data_blob(NULL, 0), data_blob(NULL, 0),
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&server_info);
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if (!NT_STATUS_IS_OK(nt_status)) {
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DEBUG(0, ("Getting user info for PAC failed: %s\n",
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nt_errstr(nt_status)));
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return EINVAL;
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}
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ret = kerberos_create_pac(mem_ctx, server_info,
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context,
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krbtgt_keyblock,
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server_keyblock,
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tgs_authtime,
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&tmp_blob);
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if (ret) {
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DEBUG(1, ("PAC encoding failed: %s\n",
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smb_get_krb5_error_message(context, ret, mem_ctx)));
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talloc_free(mem_ctx);
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return ret;
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}
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ret = krb5_data_copy(pac, tmp_blob.data, tmp_blob.length);
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talloc_free(mem_ctx);
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return ret;
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}
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