forked from osmocom/wireshark
![Dario Lombardo](/assets/img/avatar_default.png)
Change-Id: I92c94448e6641716d03158a5f332c8b53709423a Reviewed-on: https://code.wireshark.org/review/25756 Petri-Dish: Dario Lombardo <lomato@gmail.com> Reviewed-by: Anders Broman <a.broman58@gmail.com>
207 lines
6.3 KiB
C
207 lines
6.3 KiB
C
/* packet-dcerpc-krb5rpc.c
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*
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* Routines for dcerpc DCE/KRB5 interface
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* Copyright 2002, Jaime Fournier <Jaime.Fournier@hush.com>
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* This information is based off the released idl files from opengroup.
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* ftp://ftp.opengroup.org/pub/dce122/dce/src/security.tar.gz security/idl/krb5rpc.idl
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/asn1.h>
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#include "packet-dcerpc.h"
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#include "packet-kerberos.h"
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void proto_register_krb5rpc (void);
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void proto_reg_handoff_krb5rpc (void);
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static int proto_krb5rpc = -1;
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static gint ett_krb5rpc = -1;
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static e_guid_t uuid_krb5rpc =
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{ 0x8f73de50, 0x768c, 0x11ca, {0xbf, 0xfc, 0x08, 0x00, 0x1e, 0x03, 0x94,
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0x31}
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};
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static guint16 ver_krb5rpc = 1;
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static int hf_krb5rpc_opnum = -1;
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static int hf_krb5rpc_sendto_kdc_rqst_keysize = -1;
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static int hf_krb5rpc_sendto_kdc_rqst_spare1 = -1;
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static int hf_krb5rpc_sendto_kdc_resp_len = -1;
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static int hf_krb5rpc_sendto_kdc_resp_max = -1;
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static int hf_krb5rpc_sendto_kdc_resp_spare1 = -1;
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static int hf_krb5rpc_sendto_kdc_resp_keysize = -1;
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/* static int hf_krb5rpc_sendto_kdc_resp_st = -1; */
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static int hf_krb5rpc_krb5 = -1;
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static gint ett_krb5rpc_krb5 = -1;
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static int
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krb5rpc_dissect_sendto_kdc_rqst (tvbuff_t * tvb, int offset,
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packet_info * pinfo, proto_tree * tree,
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dcerpc_info *di, guint8 *drep)
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{
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guint32 keysize, spare1, remain;
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proto_item *item;
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tvbuff_t *krb5_tvb;
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proto_tree *subtree;
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/*
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* [in] handle_t h,
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* [in] unsigned32 len,
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* [in, size_is(len)]
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* byte message[],
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* [in] unsigned32 out_buf_len,
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*/
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offset =
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dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
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hf_krb5rpc_sendto_kdc_rqst_keysize, &keysize);
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offset =
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dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
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hf_krb5rpc_sendto_kdc_rqst_spare1, &spare1);
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item = proto_tree_add_item (tree, hf_krb5rpc_krb5, tvb, offset, -1, ENC_NA);
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subtree = proto_item_add_subtree (item, ett_krb5rpc_krb5);
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remain = tvb_captured_length_remaining(tvb, offset);
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krb5_tvb = tvb_new_subset_length_caplen (tvb, offset, remain, remain);
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offset = dissect_kerberos_main (krb5_tvb, pinfo, subtree, TRUE, NULL);
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return offset;
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}
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static int
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krb5rpc_dissect_sendto_kdc_resp (tvbuff_t * tvb, int offset,
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packet_info * pinfo, proto_tree * tree,
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dcerpc_info *di, guint8 *drep)
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{
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guint32 resp_len, maxsize, spare1, keysize, remain;
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proto_item *item;
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tvbuff_t *krb5_tvb;
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proto_tree *subtree;
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/*
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*
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* [out] unsigned32 *resp_len,
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* [out, length_is(*resp_len), size_is(out_buf_len)]
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* byte out_buf[],
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* [out] error_status_t *st unsigned long
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*
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*/
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offset =
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dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
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hf_krb5rpc_sendto_kdc_resp_len, &resp_len);
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offset =
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dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
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hf_krb5rpc_sendto_kdc_resp_max, &maxsize);
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offset =
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dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
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hf_krb5rpc_sendto_kdc_resp_spare1, &spare1);
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offset =
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dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep,
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hf_krb5rpc_sendto_kdc_resp_keysize, &keysize);
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item = proto_tree_add_item (tree, hf_krb5rpc_krb5, tvb, offset, -1, ENC_NA);
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subtree = proto_item_add_subtree (item, ett_krb5rpc_krb5);
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remain = tvb_captured_length_remaining(tvb, offset);
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krb5_tvb = tvb_new_subset_length_caplen (tvb, offset, remain, remain);
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offset = dissect_kerberos_main (krb5_tvb, pinfo, subtree, TRUE, NULL);
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offset += 16; /* no idea what this is, probably just extended encrypted text. */
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return offset;
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}
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static dcerpc_sub_dissector krb5rpc_dissectors[] = {
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{0, "rsec_krb5rpc_sendto_kdc", krb5rpc_dissect_sendto_kdc_rqst,
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krb5rpc_dissect_sendto_kdc_resp},
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{0, NULL, NULL, NULL},
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};
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void
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proto_register_krb5rpc (void)
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{
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static hf_register_info hf[] = {
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{&hf_krb5rpc_opnum,
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{"Opnum", "krb5rpc.opnum", FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }},
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{&hf_krb5rpc_sendto_kdc_rqst_keysize,
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{"Request keysize",
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"krb5rpc.sendto_kdc_rqst_keysize", FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL}},
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{&hf_krb5rpc_sendto_kdc_rqst_spare1,
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{"Request spare1",
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"krb5rpc.sendto_kdc_rqst_spare1", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
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HFILL}},
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{&hf_krb5rpc_sendto_kdc_resp_len,
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{"Response length", "krb5rpc.sendto_kdc_resp_len",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
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{&hf_krb5rpc_sendto_kdc_resp_max,
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{"Response max", "krb5rpc.sendto_kdc_resp_max",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
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{&hf_krb5rpc_sendto_kdc_resp_spare1,
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{"Response spare1",
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"krb5rpc.sendto_kdc_resp_spare1", FT_UINT32, BASE_DEC, NULL, 0x0, NULL,
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HFILL}},
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{&hf_krb5rpc_sendto_kdc_resp_keysize,
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{"Response key size",
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"krb5rpc.sendto_kdc_resp_keysize", FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL}},
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#if 0
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{&hf_krb5rpc_sendto_kdc_resp_st,
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{"Response st", "krb5rpc.sendto_kdc_resp_st",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
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#endif
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{&hf_krb5rpc_krb5,
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{"krb5", "krb5rpc.krb5", FT_BYTES, BASE_NONE, NULL, 0x0,
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"krb5 blob", HFILL}},
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};
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static gint *ett[] = {
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&ett_krb5rpc,
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&ett_krb5rpc_krb5,
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};
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proto_krb5rpc =
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proto_register_protocol ("DCE/RPC Kerberos V", "KRB5RPC", "krb5rpc");
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proto_register_field_array (proto_krb5rpc, hf, array_length (hf));
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proto_register_subtree_array (ett, array_length (ett));
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}
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void
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proto_reg_handoff_krb5rpc (void)
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{
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/* Register the protocol as dcerpc */
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dcerpc_init_uuid (proto_krb5rpc, ett_krb5rpc, &uuid_krb5rpc, ver_krb5rpc,
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krb5rpc_dissectors, hf_krb5rpc_opnum);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local Variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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