2 Unix SMB/CIFS implementation.
6 Copyright (C) Andrew Tridgell 2001
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
8 Copyright (C) Luke Howard 2003
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include "libcli/util/asn_1.h"
26 #include "auth/gensec/gensec.h"
29 generate a krb5 GSS-API wrapper packet given a ticket
31 DATA_BLOB gensec_gssapi_gen_krb5_wrap(TALLOC_CTX *mem_ctx, const DATA_BLOB *ticket, const uint8_t tok_id[2])
33 struct asn1_data *data;
36 if (!data || !ticket->data) {
37 return data_blob(NULL,0);
40 data = asn1_init(mem_ctx);
42 return data_blob(NULL,0);
45 asn1_push_tag(data, ASN1_APPLICATION(0));
46 asn1_write_OID(data, GENSEC_OID_KERBEROS5);
48 asn1_write(data, tok_id, 2);
49 asn1_write(data, ticket->data, ticket->length);
52 if (data->has_error) {
53 DEBUG(1,("Failed to build krb5 wrapper at offset %d\n", (int)data->ofs));
55 return data_blob(NULL,0);
58 ret = data_blob_talloc(mem_ctx, data->data, data->length);
65 parse a krb5 GSS-API wrapper packet giving a ticket
67 BOOL gensec_gssapi_parse_krb5_wrap(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, DATA_BLOB *ticket, uint8_t tok_id[2])
70 struct asn1_data *data = asn1_init(mem_ctx);
77 asn1_load(data, *blob);
78 asn1_start_tag(data, ASN1_APPLICATION(0));
79 asn1_check_OID(data, GENSEC_OID_KERBEROS5);
81 data_remaining = asn1_tag_remaining(data);
83 if (data_remaining < 3) {
84 data->has_error = True;
86 asn1_read(data, tok_id, 2);
88 *ticket = data_blob_talloc(mem_ctx, NULL, data_remaining);
89 asn1_read(data, ticket->data, ticket->length);
94 ret = !data->has_error;
103 check a GSS-API wrapper packet givin an expected OID
105 BOOL gensec_gssapi_check_oid(const DATA_BLOB *blob, const char *oid)
108 struct asn1_data *data = asn1_init(NULL);
110 if (!data) return False;
112 asn1_load(data, *blob);
113 asn1_start_tag(data, ASN1_APPLICATION(0));
114 asn1_check_OID(data, oid);
116 ret = !data->has_error;