1 /* packet-dcerpc-krb5rpc.c
3 * Routines for dcerpc DCE/KRB5 interface
4 * Copyright 2002, Jaime Fournier <Jaime.Fournier@hush.com>
5 * This information is based off the released idl files from opengroup.
6 * ftp://ftp.opengroup.org/pub/dce122/dce/src/security.tar.gz security/idl/krb5rpc.idl
8 * Wireshark - Network traffic analyzer
9 * By Gerald Combs <gerald@wireshark.org>
10 * Copyright 1998 Gerald Combs
12 * SPDX-License-Identifier: GPL-2.0-or-later
18 #include <epan/packet.h>
19 #include <epan/asn1.h>
20 #include "packet-dcerpc.h"
21 #include "packet-kerberos.h"
23 void proto_register_krb5rpc (void);
24 void proto_reg_handoff_krb5rpc (void);
26 static int proto_krb5rpc = -1;
28 static gint ett_krb5rpc = -1;
31 static e_guid_t uuid_krb5rpc =
32 { 0x8f73de50, 0x768c, 0x11ca, {0xbf, 0xfc, 0x08, 0x00, 0x1e, 0x03, 0x94,
35 static guint16 ver_krb5rpc = 1;
36 static int hf_krb5rpc_opnum = -1;
37 static int hf_krb5rpc_sendto_kdc_rqst_keysize = -1;
38 static int hf_krb5rpc_sendto_kdc_rqst_spare1 = -1;
39 static int hf_krb5rpc_sendto_kdc_resp_len = -1;
40 static int hf_krb5rpc_sendto_kdc_resp_max = -1;
41 static int hf_krb5rpc_sendto_kdc_resp_spare1 = -1;
42 static int hf_krb5rpc_sendto_kdc_resp_keysize = -1;
43 /* static int hf_krb5rpc_sendto_kdc_resp_st = -1; */
44 static int hf_krb5rpc_krb5 = -1;
45 static gint ett_krb5rpc_krb5 = -1;
48 krb5rpc_dissect_sendto_kdc_rqst (tvbuff_t * tvb, int offset,
49 packet_info * pinfo, proto_tree * tree,
50 dcerpc_info *di, guint8 *drep)
52 guint32 keysize, spare1, remain;
60 * [in] unsigned32 len,
63 * [in] unsigned32 out_buf_len,
67 dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
68 hf_krb5rpc_sendto_kdc_rqst_keysize, &keysize);
70 dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
71 hf_krb5rpc_sendto_kdc_rqst_spare1, &spare1);
72 item = proto_tree_add_item (tree, hf_krb5rpc_krb5, tvb, offset, -1, ENC_NA);
73 subtree = proto_item_add_subtree (item, ett_krb5rpc_krb5);
75 remain = tvb_captured_length_remaining(tvb, offset);
76 krb5_tvb = tvb_new_subset_length_caplen (tvb, offset, remain, remain);
77 offset = dissect_kerberos_main (krb5_tvb, pinfo, subtree, TRUE, NULL);
85 krb5rpc_dissect_sendto_kdc_resp (tvbuff_t * tvb, int offset,
86 packet_info * pinfo, proto_tree * tree,
87 dcerpc_info *di, guint8 *drep)
89 guint32 resp_len, maxsize, spare1, keysize, remain;
97 * [out] unsigned32 *resp_len,
98 * [out, length_is(*resp_len), size_is(out_buf_len)]
100 * [out] error_status_t *st unsigned long
105 dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
106 hf_krb5rpc_sendto_kdc_resp_len, &resp_len);
108 dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
109 hf_krb5rpc_sendto_kdc_resp_max, &maxsize);
111 dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
112 hf_krb5rpc_sendto_kdc_resp_spare1, &spare1);
114 dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
115 hf_krb5rpc_sendto_kdc_resp_keysize, &keysize);
118 item = proto_tree_add_item (tree, hf_krb5rpc_krb5, tvb, offset, -1, ENC_NA);
119 subtree = proto_item_add_subtree (item, ett_krb5rpc_krb5);
120 remain = tvb_captured_length_remaining(tvb, offset);
121 krb5_tvb = tvb_new_subset_length_caplen (tvb, offset, remain, remain);
123 offset = dissect_kerberos_main (krb5_tvb, pinfo, subtree, TRUE, NULL);
124 offset += 16; /* no idea what this is, probably just extended encrypted text. */
130 static dcerpc_sub_dissector krb5rpc_dissectors[] = {
131 {0, "rsec_krb5rpc_sendto_kdc", krb5rpc_dissect_sendto_kdc_rqst,
132 krb5rpc_dissect_sendto_kdc_resp},
133 {0, NULL, NULL, NULL},
138 proto_register_krb5rpc (void)
140 static hf_register_info hf[] = {
142 {"Opnum", "krb5rpc.opnum", FT_UINT16, BASE_DEC, NULL, 0x0,
144 {&hf_krb5rpc_sendto_kdc_rqst_keysize,
146 "krb5rpc.sendto_kdc_rqst_keysize", FT_UINT32, BASE_DEC, NULL, 0x0,
148 {&hf_krb5rpc_sendto_kdc_rqst_spare1,
150 "krb5rpc.sendto_kdc_rqst_spare1", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
152 {&hf_krb5rpc_sendto_kdc_resp_len,
153 {"Response length", "krb5rpc.sendto_kdc_resp_len",
154 FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
155 {&hf_krb5rpc_sendto_kdc_resp_max,
156 {"Response max", "krb5rpc.sendto_kdc_resp_max",
157 FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
158 {&hf_krb5rpc_sendto_kdc_resp_spare1,
160 "krb5rpc.sendto_kdc_resp_spare1", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
162 {&hf_krb5rpc_sendto_kdc_resp_keysize,
163 {"Response key size",
164 "krb5rpc.sendto_kdc_resp_keysize", FT_UINT32, BASE_DEC, NULL, 0x0,
167 {&hf_krb5rpc_sendto_kdc_resp_st,
168 {"Response st", "krb5rpc.sendto_kdc_resp_st",
169 FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
172 {"krb5", "krb5rpc.krb5", FT_BYTES, BASE_NONE, NULL, 0x0,
173 "krb5 blob", HFILL}},
177 static gint *ett[] = {
182 proto_register_protocol ("DCE/RPC Kerberos V", "KRB5RPC", "krb5rpc");
183 proto_register_field_array (proto_krb5rpc, hf, array_length (hf));
184 proto_register_subtree_array (ett, array_length (ett));
188 proto_reg_handoff_krb5rpc (void)
190 /* Register the protocol as dcerpc */
191 dcerpc_init_uuid (proto_krb5rpc, ett_krb5rpc, &uuid_krb5rpc, ver_krb5rpc,
192 krb5rpc_dissectors, hf_krb5rpc_opnum);
196 * Editor modelines - http://www.wireshark.org/tools/modelines.html
201 * indent-tabs-mode: nil
204 * ex: set shiftwidth=2 tabstop=8 expandtab:
205 * :indentSize=2:tabSize=8:noTabs=true: