diff options
Diffstat (limited to 'plugins/epan/wimax/msg_pkm.c')
| -rw-r--r-- | plugins/epan/wimax/msg_pkm.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/plugins/epan/wimax/msg_pkm.c b/plugins/epan/wimax/msg_pkm.c new file mode 100644 index 0000000..b91f260 --- /dev/null +++ b/plugins/epan/wimax/msg_pkm.c @@ -0,0 +1,178 @@ +/* msg_pkm.c + * WiMax MAC Management PKM-REQ/RSP Messages decoders + * + * Copyright (c) 2007 by Intel Corporation. + * + * Author: Lu Pan <lu.pan@intel.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1999 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#if 0 +#define DEBUG /* for debug only */ +#endif + +/* Include files */ + +#include "config.h" + +#include <epan/packet.h> +#include "wimax_tlv.h" +#include "wimax_mac.h" +#include "wimax_utils.h" + +void proto_register_mac_mgmt_msg_pkm(void); +void proto_reg_handoff_mac_mgmt_msg_pkm(void); + +static dissector_handle_t mac_mgmt_msg_pkm_req_handle; +static dissector_handle_t mac_mgmt_msg_pkm_rsp_handle; + + +static gint proto_mac_mgmt_msg_pkm_decoder = -1; +static gint ett_mac_mgmt_msg_pkm_req_decoder = -1; +static gint ett_mac_mgmt_msg_pkm_rsp_decoder = -1; + +static const value_string vals_pkm_msg_code[] = +{ + { 3, "SA ADD"}, + { 4, "Auth Request"}, + { 5, "Auth Reply"}, + { 6, "Auth Reject"}, + { 7, "Key Request"}, + { 8, "Key Reply"}, + { 9, "Key Reject"}, + {10, "Auth Invalid"}, + {11, "TEK Invalid"}, + {12, "Auth Info"}, + {13, "PKMv2 RSA-Request"}, + {14, "PKMv2 RSA-Reply"}, + {15, "PKMv2 RSA-Reject"}, + {16, "PKMv2 RSA-Acknowledgement"}, + {17, "PKMv2 EAP Start"}, + {18, "PKMv2 EAP-Transfer"}, + {19, "PKMv2 Authenticated EAP-Transfer"}, + {20, "PKMv2 SA TEK Challenge"}, + {21, "PKMv2 SA TEK Request"}, + {22, "PKMv2 SA TEK Response"}, + {23, "PKMv2 Key-Request"}, + {24, "PKMv2 Key-Reply"}, + {25, "PKMv2 Key-Reject"}, + {26, "PKMv2 SA-Addition"}, + {27, "PKMv2 TEK-Invalid"}, + {28, "PKMv2 Group-Key-Update-Command"}, + {29, "PKMv2 EAP Complete"}, + {30, "PKMv2 Authenticated EAP Start"}, + { 0, NULL} +}; + +/* fix fields */ +static gint hf_pkm_msg_code = -1; +static gint hf_pkm_msg_pkm_id = -1; + + +/* Wimax Mac PKM-REQ Message Dissector */ +static int dissect_mac_mgmt_msg_pkm_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + guint offset = 0; + proto_item *pkm_item; + proto_tree *pkm_tree; + + /* display MAC payload type PKM-REQ */ + pkm_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_pkm_decoder, tvb, offset, -1, "Privacy Key Management Request (PKM-REQ)"); + /* add MAC PKM subtree */ + pkm_tree = proto_item_add_subtree(pkm_item, ett_mac_mgmt_msg_pkm_req_decoder); + /* Decode and display the Privacy Key Management Request Message (PKM-REQ) (table 24) */ + /* display the PKM Code */ + proto_tree_add_item(pkm_tree, hf_pkm_msg_code, tvb, offset, 1, ENC_BIG_ENDIAN); + /* set the offset for the PKM ID */ + offset++; + /* display the PKM ID */ + proto_tree_add_item(pkm_tree, hf_pkm_msg_pkm_id, tvb, offset, 1, ENC_BIG_ENDIAN); + /* set the offset for the TLV Encoded info */ + offset++; + wimax_pkm_tlv_encoded_attributes_decoder(tvb_new_subset_remaining(tvb, offset), pinfo, pkm_tree); + return tvb_captured_length(tvb); +} + +/* Wimax Mac PKM-RSP Message Dissector */ +static int dissect_mac_mgmt_msg_pkm_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + guint offset = 0; + proto_item *pkm_item; + proto_tree *pkm_tree; + + /* display MAC payload type PKM-RSP */ + pkm_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_pkm_decoder, tvb, offset, -1, "Privacy Key Management Response (PKM-RSP)"); + /* add MAC PKM subtree */ + pkm_tree = proto_item_add_subtree(pkm_item, ett_mac_mgmt_msg_pkm_rsp_decoder); + /* Decode and display the Privacy Key Management Response (PKM-RSP) (table 25) */ + /* display the PKM Code */ + proto_tree_add_item(pkm_tree, hf_pkm_msg_code, tvb, offset, 1, ENC_BIG_ENDIAN); + /* set the offset for the PKM ID */ + offset++; + /* display the PKM ID */ + proto_tree_add_item(pkm_tree, hf_pkm_msg_pkm_id, tvb, offset, 1, ENC_BIG_ENDIAN); + /* set the offset for the TLV Encoded info */ + offset++; + /* process the PKM TLV Encoded Attributes */ + wimax_pkm_tlv_encoded_attributes_decoder(tvb_new_subset_remaining(tvb, offset), pinfo, pkm_tree); + return tvb_captured_length(tvb); +} + +/* Register Wimax Mac PKM-REQ/RSP Messages Dissectors */ +void proto_register_mac_mgmt_msg_pkm(void) +{ + /* PKM display */ + static hf_register_info hf_pkm[] = + { + { + &hf_pkm_msg_code, + {"Code", "wmx.pkm.msg_code",FT_UINT8, BASE_DEC, VALS(vals_pkm_msg_code),0x0, NULL, HFILL} + }, + { + &hf_pkm_msg_pkm_id, + {"PKM Identifier", "wmx.pkm.msg_pkm_identifier",FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} + }, + }; + + /* Setup protocol subtree array */ + static gint *ett_pkm[] = + { + &ett_mac_mgmt_msg_pkm_req_decoder, + &ett_mac_mgmt_msg_pkm_rsp_decoder, + }; + + proto_mac_mgmt_msg_pkm_decoder = proto_register_protocol ( + "WiMax PKM-REQ/RSP Messages", /* name */ + "WiMax PKM-REQ/RSP (pkm)", /* short name */ + "wmx.pkm" /* abbrev */ + ); + + proto_register_field_array(proto_mac_mgmt_msg_pkm_decoder, hf_pkm, array_length(hf_pkm)); + proto_register_subtree_array(ett_pkm, array_length(ett_pkm)); + mac_mgmt_msg_pkm_req_handle = register_dissector("mac_mgmt_msg_pkm_req_handler", dissect_mac_mgmt_msg_pkm_req_decoder, proto_mac_mgmt_msg_pkm_decoder); + mac_mgmt_msg_pkm_rsp_handle = register_dissector("mac_mgmt_msg_pkm_rsp_handler", dissect_mac_mgmt_msg_pkm_rsp_decoder, proto_mac_mgmt_msg_pkm_decoder); +} + +void proto_reg_handoff_mac_mgmt_msg_pkm(void) +{ + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_PKM_REQ, mac_mgmt_msg_pkm_req_handle ); + dissector_add_uint( "wmx.mgmtmsg", MAC_MGMT_MSG_PKM_RSP, mac_mgmt_msg_pkm_rsp_handle ); +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 8 + * tab-width: 8 + * indent-tabs-mode: t + * End: + * + * vi: set shiftwidth=8 tabstop=8 noexpandtab: + * :indentSize=8:tabSize=8:noTabs=false: + */ |