diff options
Diffstat (limited to 'plugins/epan/docsis/packet-vendor.c')
| -rw-r--r-- | plugins/epan/docsis/packet-vendor.c | 887 |
1 files changed, 0 insertions, 887 deletions
diff --git a/plugins/epan/docsis/packet-vendor.c b/plugins/epan/docsis/packet-vendor.c deleted file mode 100644 index 2f5f46e73b..0000000000 --- a/plugins/epan/docsis/packet-vendor.c +++ /dev/null @@ -1,887 +0,0 @@ -/* packet-vendor.c - * Routines for Vendor Specific Encodings dissection - * Copyright 2002, Anand V. Narwani <anand[AT]narwani.org> - * - * Wireshark - Network traffic analyzer - * By Gerald Combs <gerald@wireshark.org> - * Copyright 1998 Gerald Combs - * - * SPDX-License-Identifier: GPL-2.0-or-later - */ - - -/* Notes to Adding dissectors for Vendor specific TLV's: - * 1. Create a dissect_<vendorname> function with the following prototype: - * dissect_foovendor(tvbuff_t *tvb, proto_tree *tree, gint vsif_len) - * 2. vsif_len will be the *entire* length of the vsif TLV (including the - * Vendor Id TLV, which is 5 bytes long). - * 3. Create a new 'case' statement in dissect_vsif, for your specific Vendor - * id. - * 4. In that 'case' statement you will make the following calls: - * (assume for this example that your vendor id is 0x000054) - * #define VENDOR_FOOVENDOR 0x00054 - * case VENDOR_FOOVENDOR: - * proto_item_append_text (it, " (foo vendor)"); - * dissect_foovendor (tvb, vsif_tree, vsif_len); - * break; - * 5. Please see dissect_cisco for an example of how to do this. - */ - -#include "config.h" - -#include <epan/packet.h> -#include <epan/expert.h> - -/* Define Vendor ID's here */ -#define VENDOR_CISCO 0x00000C -#define VENDOR_GENERAL 0xFFFFFF - -void proto_register_docsis_vsif(void); -void proto_reg_handoff_docsis_vsif(void); - -/* Initialize the protocol and registered fields */ -static int proto_docsis_vsif = -1; -static int hf_docsis_vsif_vendorid = -1; -static int hf_docsis_vsif_vendor_unknown = -1; -static int hf_docsis_vsif_cisco_numphones = -1; -/* static int hf_docsis_vsif_cisco_ipprec = -1; */ -static int hf_docsis_vsif_cisco_ipprec_val = -1; -static int hf_docsis_vsif_cisco_ipprec_bw = -1; -static int hf_docsis_vsif_cisco_config_file = -1; - -static int hf_docsis_vsif_gex_loadbal_policy_id = -1; -static int hf_docsis_vsif_gex_loadbal_priority = -1; -static int hf_docsis_vsif_gex_loadbal_group_id = -1; -static int hf_docsis_vsif_gex_ranging_class_id_extension = -1; -static int hf_docsis_vsif_gex_l2vpn_encoding = -1; -static int hf_docsis_vsif_gex_ecm = -1; -static int hf_docsis_vsif_gex_sav = -1; -static int hf_docsis_vsif_gex_cmam = -1; -static int hf_docsis_vsif_gex_imja = -1; -static int hf_docsis_vsif_gex_service_type_identifier = -1; - -static int hf_docsis_vsif_gex_ecm_extended_cmts_mic_hmac_type = -1; -static int hf_docsis_vsif_gex_ecm_extended_cmts_mic_bitmap = -1; -static int hf_docsis_vsif_gex_ecm_explicit_extended_cmts_mic_digest_subtype = -1; - -static int hf_docsis_vsif_gex_sav_group_name = -1; -static int hf_docsis_vsif_gex_sav_static_prefix_rule = -1; - -static int hf_docsis_vsif_gex_sav_static_prefix_addressv4 = -1; -static int hf_docsis_vsif_gex_sav_static_prefix_addressv6 = -1; -static int hf_docsis_vsif_gex_sav_static_prefix_length = -1; - -static int hf_docsis_vsif_gex_cmam_cm_required_downstream_attribute_mask = -1; -static int hf_docsis_vsif_gex_cmam_cm_forbidden_downstream_attribute_mask = -1; -static int hf_docsis_vsif_gex_cmam_cm_required_upstream_attribute_mask = -1; -static int hf_docsis_vsif_gex_cmam_cm_forbidden_upstream_attribute_mask = -1; - -static int hf_docsis_vsif_gex_imja_ip_multicast_profile_name = -1; -static int hf_docsis_vsif_gex_imja_ssr = -1; -static int hf_docsis_vsif_gex_imja_maximum_multicast_sessions = -1; - -static int hf_docsis_vsif_gex_imja_ssr_rule_priority = -1; -static int hf_docsis_vsif_gex_imja_ssr_authorization_action = -1; -static int hf_docsis_vsif_gex_imja_ssr_source_prefix_addressv4 = -1; -static int hf_docsis_vsif_gex_imja_ssr_source_prefix_addressv6 = -1; -static int hf_docsis_vsif_gex_imja_ssr_source_prefix_length = -1; -static int hf_docsis_vsif_gex_imja_ssr_group_prefix_addressv4 = -1; -static int hf_docsis_vsif_gex_imja_ssr_group_prefix_addressv6 = -1; -static int hf_docsis_vsif_gex_imja_ssr_group_prefix_length = -1; - -static int hf_docsis_vsif_tlv_unknown = -1; - - -/* Initialize the subtree pointers */ -static gint ett_docsis_vsif = -1; -static gint ett_docsis_vsif_ipprec = -1; -static gint ett_docsis_vsif_gex_ecm = -1; -static gint ett_docsis_vsif_gex_sav = -1; -static gint ett_docsis_vsif_gex_sav_spr = -1; -static gint ett_docsis_vsif_gex_cmam = -1; -static gint ett_docsis_vsif_gex_imja = -1; -static gint ett_docsis_vsif_gex_imja_ssr = -1; - - -static expert_field ei_docsis_vsif_tlvlen_bad = EI_INIT; -static expert_field ei_docsis_vsif_tlvtype_unknown = EI_INIT; - -static const value_string vendorid_vals[] = { - {VENDOR_CISCO, "Cisco Systems, Inc."}, - {VENDOR_GENERAL, "General Extension Information"}, - {0, NULL}, -}; - -static const value_string hmac_vals[] = { - {1, "MD5 HMAC [RFC 2104]"}, - {2, "MMH16-sigma-n HMAC [DOCSIS SECv3.0]"}, - {43, "Vendor Specific"}, - {0, NULL}, -}; - -static const value_string authorization_action_vals[] = { - {0, "permit"}, - {1, "deny"}, - {0, NULL}, -}; - - -/* Dissector for Cisco Vendor Specific TLV's */ - -#define NUM_PHONES 0x0a -#define IOS_CONFIG_FILE 0x80 -#define IP_PREC 0x0b -#define IP_PREC_VAL 0x01 -#define IP_PREC_BW 0x02 - -static void dissect_general_extension_information (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, - gint vsif_len); - - -static void -dissect_cisco (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gint vsif_len) -{ - /* Start at pos = 5, since tvb includes the Vendor ID field */ - int pos = 5; - guint8 type, length; - proto_tree *ipprec_tree; - proto_item *ipprec_item; - int templen; - - while (pos < vsif_len) - { - /* Extract the type and length Fields from the TLV */ - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case NUM_PHONES: - proto_tree_add_item (tree, hf_docsis_vsif_cisco_numphones, tvb, - pos, length, ENC_BIG_ENDIAN); - break; - case IP_PREC: - ipprec_tree = - proto_tree_add_subtree(tree, tvb, pos, length, ett_docsis_vsif_ipprec, &ipprec_item, "IP Precedence"); - /* Handle Sub-TLVs in IP Precedence */ - templen = pos + length; - while (pos < templen) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case IP_PREC_VAL: - if (length == 1) - { - proto_tree_add_item (ipprec_tree, - hf_docsis_vsif_cisco_ipprec_val, tvb, - pos, length, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, ipprec_item, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case IP_PREC_BW: - if (length != 4) - { - proto_tree_add_item (ipprec_tree, - hf_docsis_vsif_cisco_ipprec_bw, tvb, - pos, length, ENC_BIG_ENDIAN); - } - else - { - expert_add_info_format(pinfo, ipprec_item, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - default: - expert_add_info_format(pinfo, ipprec_item, &ei_docsis_vsif_tlvtype_unknown, "Unknown TLV: %u", type); - } - pos += length; - } - break; - case IOS_CONFIG_FILE: - proto_tree_add_item (tree, hf_docsis_vsif_cisco_config_file, tvb, - pos, length, ENC_ASCII|ENC_NA); - } - pos += length; - } -} - -/* Dissection */ -static int -dissect_vsif (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_) -{ - proto_item *it; - proto_tree *vsif_tree; - guint8 type; - guint8 length; - guint32 value; - gint vsif_len; - - /* get the reported length of the VSIF TLV */ - vsif_len = tvb_reported_length_remaining (tvb, 0); - - it = proto_tree_add_protocol_format (tree, proto_docsis_vsif, tvb, 0, -1, - "VSIF Encodings"); - vsif_tree = proto_item_add_subtree (it, ett_docsis_vsif); - proto_tree_add_item_ret_uint(vsif_tree, hf_docsis_vsif_vendorid, tvb, 2, 3, ENC_BIG_ENDIAN, &value); - - /* The first TLV in the VSIF encodings must be type 0x08 (Vendor ID) and - * length 3. - */ - type = tvb_get_guint8 (tvb, 0); - if (type != 0x08) - expert_add_info_format(pinfo, it, &ei_docsis_vsif_tlvtype_unknown, "Unknown TLV: %u", type); - - length = tvb_get_guint8 (tvb, 1); - if (length != 3) - expert_add_info_format(pinfo, it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - - /* switch on the Vendor ID */ - switch (value) - { - case VENDOR_CISCO: - proto_item_append_text (it, " (Cisco)"); - dissect_cisco (tvb, pinfo, vsif_tree, vsif_len); - break; - case VENDOR_GENERAL: - proto_item_append_text (it, " (General Extension Information)"); - dissect_general_extension_information (tvb, pinfo, vsif_tree, vsif_len); - break; - default: - proto_item_append_text (it, " (Unknown)"); - proto_tree_add_item (vsif_tree, hf_docsis_vsif_vendor_unknown, tvb, - 0, -1, ENC_NA); - break; - } - - return tvb_captured_length(tvb); -} - - -#define GEX_ECM_EXTENDED_CMTS_MIC_HMAC_TYPE 1 -#define GEX_ECM_EXTENDED_CMTS_MIC_BITMAP 2 -#define GEX_ECM_EXPLICIT_EXTENDED_CMTS_MIC_DIGEST_SUBTYPE 3 - -static void -dissect_extended_cmts_mic(tvbuff_t * tvb, proto_tree *tree, int start, guint16 len) -{ - proto_item *ecm_it; - proto_tree *ecm_tree; - guint8 type, length; - int pos = start; - - ecm_it = proto_tree_add_item (tree, hf_docsis_vsif_gex_ecm, tvb, start, len, ENC_NA); - ecm_tree = proto_item_add_subtree(ecm_it, ett_docsis_vsif_gex_ecm); - - while (pos < (start + len)) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_ECM_EXTENDED_CMTS_MIC_HMAC_TYPE: - proto_tree_add_item (ecm_tree, hf_docsis_vsif_gex_ecm_extended_cmts_mic_hmac_type, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_ECM_EXTENDED_CMTS_MIC_BITMAP: - proto_tree_add_item (ecm_tree, hf_docsis_vsif_gex_ecm_extended_cmts_mic_bitmap, tvb, pos, length, ENC_NA); - break; - case GEX_ECM_EXPLICIT_EXTENDED_CMTS_MIC_DIGEST_SUBTYPE: - proto_tree_add_item (ecm_tree, hf_docsis_vsif_gex_ecm_explicit_extended_cmts_mic_digest_subtype, tvb, pos, length, ENC_NA); - break; - default: - proto_tree_add_item (ecm_tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - break; - } /* switch */ - pos += length; - } /* while */ -} - -#define GEX_SAV_STATIC_PREFIX_ADDRESS 1 -#define GEX_SAV_STATIC_PREFIX_LENGTH 2 - -static void -dissect_sav_static_prefix_rule(tvbuff_t * tvb, packet_info * pinfo, proto_tree *tree, int start, guint16 len) -{ - proto_item *sav_spr_it; - proto_tree *sav_spr_tree; - guint8 type, length; - int pos = start; - - sav_spr_it = proto_tree_add_item (tree, hf_docsis_vsif_gex_sav_static_prefix_rule, tvb, start, len, ENC_NA); - sav_spr_tree = proto_item_add_subtree(sav_spr_it, ett_docsis_vsif_gex_sav_spr); - - while (pos < (start + len)) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_SAV_STATIC_PREFIX_ADDRESS: - if (length == 4) { - proto_tree_add_item (sav_spr_tree, hf_docsis_vsif_gex_sav_static_prefix_addressv4, tvb, pos, length, ENC_BIG_ENDIAN); - } else if (length == 6) { - proto_tree_add_item (sav_spr_tree, hf_docsis_vsif_gex_sav_static_prefix_addressv6, tvb, pos, length, ENC_NA); - } else { - expert_add_info_format(pinfo, sav_spr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case GEX_SAV_STATIC_PREFIX_LENGTH: - if (length == 1) { - proto_tree_add_item (sav_spr_tree, hf_docsis_vsif_gex_sav_static_prefix_length, tvb, pos, length, ENC_BIG_ENDIAN); - } else { - expert_add_info_format(pinfo, sav_spr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - default: - proto_tree_add_item (sav_spr_tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - break; - } /* switch */ - pos += length; - } /* while */ -} - - - -#define GEX_SAV_GROUP_NAME 1 -#define GEX_SAV_STATIC_PREFIX_RULE 2 - - -static void -dissect_sav(tvbuff_t * tvb, packet_info * pinfo, proto_tree *tree, int start, guint16 len) -{ - proto_item *sav_it; - proto_tree *sav_tree; - guint8 type, length; - int pos = start; - - sav_it = proto_tree_add_item (tree, hf_docsis_vsif_gex_sav, tvb, start, len, ENC_NA); - sav_tree = proto_item_add_subtree(sav_it, ett_docsis_vsif_gex_sav); - - while (pos < (start + len)) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_SAV_GROUP_NAME: - proto_tree_add_item (sav_tree, hf_docsis_vsif_gex_sav_group_name, tvb, pos, length, ENC_ASCII|ENC_NA); - break; - case GEX_SAV_STATIC_PREFIX_RULE: - dissect_sav_static_prefix_rule(tvb, pinfo, sav_tree, pos, length); - break; - default: - proto_tree_add_item (sav_tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - break; - } /* switch */ - pos += length; - } /* while */ -} - - -#define GEX_CM_REQUIRED_DOWNSTREAM_ATTRIBUTE_MASK 1 -#define GEX_CM_FORBIDDEN_DOWNSTREAM_ATTRIBUTE_MASK 2 -#define GEX_CM_REQUIRED_UPSTREAM_ATTRIBUTE_MASK 3 -#define GEX_CM_FORBIDDEN_UPSTREAM_ATTRIBUTE_MASK 4 - -static void -dissect_cable_modem_attribute_masks(tvbuff_t * tvb, packet_info * pinfo, proto_tree *tree, int start, guint16 len) -{ - proto_item *cmam_it; - proto_tree *cmam_tree; - guint8 type, length; - int pos = start; - - cmam_it = proto_tree_add_item (tree, hf_docsis_vsif_gex_cmam, tvb, start, len, ENC_NA); - cmam_tree = proto_item_add_subtree(cmam_it, ett_docsis_vsif_gex_cmam); - - while (pos < (start + len)) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_CM_REQUIRED_DOWNSTREAM_ATTRIBUTE_MASK: - if (length != 4) { - expert_add_info_format(pinfo, cmam_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (cmam_tree, hf_docsis_vsif_gex_cmam_cm_required_downstream_attribute_mask, tvb, pos, length, ENC_NA); - break; - case GEX_CM_FORBIDDEN_DOWNSTREAM_ATTRIBUTE_MASK: - if (length != 4) { - expert_add_info_format(pinfo, cmam_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (cmam_tree, hf_docsis_vsif_gex_cmam_cm_forbidden_downstream_attribute_mask, tvb, pos, length, ENC_NA); - break; - case GEX_CM_REQUIRED_UPSTREAM_ATTRIBUTE_MASK: - if (length != 4) { - expert_add_info_format(pinfo, cmam_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (cmam_tree, hf_docsis_vsif_gex_cmam_cm_required_upstream_attribute_mask, tvb, pos, length, ENC_NA); - break; - case GEX_CM_FORBIDDEN_UPSTREAM_ATTRIBUTE_MASK: - if (length != 4) { - expert_add_info_format(pinfo, cmam_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (cmam_tree, hf_docsis_vsif_gex_cmam_cm_forbidden_upstream_attribute_mask, tvb, pos, length, ENC_NA); - break; - default: proto_tree_add_item (cmam_tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - } /* switch */ - pos += length; - } /* while */ -} - - -#define GEX_IMJA_SSR_RULE_PRIORITY 1 -#define GEX_IMJA_SSR_AUTHORIZATION_ACTION 2 -#define GEX_IMJA_SSR_AUTHORIZATION_SOURCE_PREFIX_ADDRESS 3 -#define GEX_IMJA_SSR_AUTHORIZATION_SOURCE_PREFIX_LENGTH 4 -#define GEX_IMJA_SSR_AUTHORIZATION_GROUP_PREFIX_ADDRESS 5 -#define GEX_IMJA_SSR_AUTHORIZATION_GROUP_PREFIX_LENGTH 6 - - -static void -dissect_ip_multicast_join_authorization_static_session_rule(tvbuff_t * tvb, packet_info * pinfo, proto_tree *tree, int start, guint16 len) -{ - proto_item *imja_ssr_it; - proto_tree *imja_ssr_tree; - guint8 type, length; - int pos = start; - - imja_ssr_it = proto_tree_add_item (tree, hf_docsis_vsif_gex_imja_ssr, tvb, start, len, ENC_NA); - imja_ssr_tree = proto_item_add_subtree(imja_ssr_it, ett_docsis_vsif_gex_imja_ssr); - - while (pos < (start + len)) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_IMJA_SSR_RULE_PRIORITY: - if (length != 1) { - expert_add_info_format(pinfo, imja_ssr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_rule_priority, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_IMJA_SSR_AUTHORIZATION_ACTION: - if (length != 1) { - expert_add_info_format(pinfo, imja_ssr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_authorization_action, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_IMJA_SSR_AUTHORIZATION_SOURCE_PREFIX_ADDRESS: - if (length == 4) { - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_source_prefix_addressv4, tvb, pos, length, ENC_BIG_ENDIAN); - } else if (length == 6) { - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_source_prefix_addressv6, tvb, pos, length, ENC_NA); - } else { - expert_add_info_format(pinfo, imja_ssr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case GEX_IMJA_SSR_AUTHORIZATION_SOURCE_PREFIX_LENGTH: - if (length != 1) { - expert_add_info_format(pinfo, imja_ssr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_source_prefix_length, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_IMJA_SSR_AUTHORIZATION_GROUP_PREFIX_ADDRESS: - if (length == 4) { - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_group_prefix_addressv4, tvb, pos, length, ENC_BIG_ENDIAN); - } else if (length == 6) { - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_group_prefix_addressv6, tvb, pos, length, ENC_NA); - } else { - expert_add_info_format(pinfo, imja_ssr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - break; - case GEX_IMJA_SSR_AUTHORIZATION_GROUP_PREFIX_LENGTH: - if (length != 1) { - expert_add_info_format(pinfo, imja_ssr_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_gex_imja_ssr_group_prefix_length, tvb, pos, length, ENC_BIG_ENDIAN); - break; - default: proto_tree_add_item (imja_ssr_tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - } /* switch */ - pos += length; - } /* while */ -} - -#define GEX_IMJA_IP_MULTICAST_PROFILE_NAME 1 -#define GEX_IMJA_IP_MULTICAST_PROFILE_JOIN_AUTHORIZATION_STATIC_SESSION_RULE 2 -#define GEX_IMJA_MAXIMUM_MULTICAST_SESSIONS 3 - - -static void -dissect_ip_multicast_join_authorization(tvbuff_t * tvb, packet_info * pinfo, proto_tree *tree, int start, guint16 len) -{ - proto_item *imja_it; - proto_tree *imja_tree; - guint8 type, length; - int pos = start; - - imja_it = proto_tree_add_item (tree, hf_docsis_vsif_gex_imja, tvb, start, len, ENC_NA); - imja_tree = proto_item_add_subtree(imja_it, ett_docsis_vsif_gex_imja); - - while (pos < (start + len)) - { - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_IMJA_IP_MULTICAST_PROFILE_NAME: - if ((length < 1) || (length > 15)) { - expert_add_info_format(pinfo, imja_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (imja_tree, hf_docsis_vsif_gex_imja_ip_multicast_profile_name, tvb, pos, length, ENC_ASCII|ENC_NA); - break; - case GEX_IMJA_IP_MULTICAST_PROFILE_JOIN_AUTHORIZATION_STATIC_SESSION_RULE: - dissect_ip_multicast_join_authorization_static_session_rule(tvb, pinfo, imja_tree, pos, length); - break; - case GEX_IMJA_MAXIMUM_MULTICAST_SESSIONS: - if (length != 2) { - expert_add_info_format(pinfo, imja_it, &ei_docsis_vsif_tlvlen_bad, "Wrong TLV length: %u", length); - } - proto_tree_add_item (imja_tree, hf_docsis_vsif_gex_imja_maximum_multicast_sessions, tvb, pos, length, ENC_BIG_ENDIAN); - break; - default: proto_tree_add_item (imja_tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - } /* switch */ - pos += length; - } /* while */ -} - - - -/* Dissector for General Extension TLV's */ - -#define GEX_CM_LOAD_BALANCING_POLICY_ID 1 -#define GEX_CM_LOAD_BALANCING_PRIORITY 2 -#define GEX_CM_LOAD_BALANCING_GROUP_ID 3 -#define GEX_CM_RANGING_CLASS_ID_EXTENSION 4 -#define GEX_L2VPN_ENCODING 5 -#define GEX_EXTENDED_CMTS_MIC_CONFIGURATION_SETTING 6 -#define GEX_EXTENDED_SAV 7 -#define GEX_CABLE_MODEM_ATTRIBUTE_MASKS 9 -#define GEX_IP_MULTICAST_JOIN_AUTHORIZATION 10 -#define GEX_SERVICE_TYPE_IDENTIFIER 11 - - - -static void -dissect_general_extension_information (tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, gint vsif_len) -{ - /* Start at pos = 5, since tvb includes the Vendor ID field */ - int pos = 5; - guint8 type, length; - - while (pos < vsif_len) - { - /* Extract the type and length Fields from the TLV */ - type = tvb_get_guint8 (tvb, pos++); - length = tvb_get_guint8 (tvb, pos++); - switch (type) - { - case GEX_CM_LOAD_BALANCING_POLICY_ID: - proto_tree_add_item (tree, hf_docsis_vsif_gex_loadbal_policy_id, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_CM_LOAD_BALANCING_PRIORITY: - proto_tree_add_item (tree, hf_docsis_vsif_gex_loadbal_priority, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_CM_LOAD_BALANCING_GROUP_ID: - proto_tree_add_item (tree, hf_docsis_vsif_gex_loadbal_group_id, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_CM_RANGING_CLASS_ID_EXTENSION: - proto_tree_add_item (tree, hf_docsis_vsif_gex_ranging_class_id_extension, tvb, pos, length, ENC_BIG_ENDIAN); - break; - case GEX_L2VPN_ENCODING: - proto_tree_add_item (tree, hf_docsis_vsif_gex_l2vpn_encoding, tvb, pos, length, ENC_NA); - break; - case GEX_EXTENDED_CMTS_MIC_CONFIGURATION_SETTING: - dissect_extended_cmts_mic(tvb, tree, pos, length); - break; - case GEX_EXTENDED_SAV: - dissect_sav(tvb, pinfo, tree, pos, length); - break; - case GEX_CABLE_MODEM_ATTRIBUTE_MASKS: - dissect_cable_modem_attribute_masks(tvb, pinfo, tree, pos, length); - break; - case GEX_IP_MULTICAST_JOIN_AUTHORIZATION: - dissect_ip_multicast_join_authorization(tvb, pinfo, tree, pos, length); - break; - case GEX_SERVICE_TYPE_IDENTIFIER: - proto_tree_add_item (tree, hf_docsis_vsif_gex_service_type_identifier, tvb, pos, length, ENC_ASCII|ENC_NA); - break; - default: - proto_tree_add_item (tree, hf_docsis_vsif_tlv_unknown, tvb, pos, length, ENC_NA); - } - pos += length; - } -} - - -/* Register the protocol with Wireshark */ -void -proto_register_docsis_vsif (void) -{ - static hf_register_info hf[] = { - {&hf_docsis_vsif_vendorid, - {"Vendor Id", "docsis_vsif.vendorid", - FT_UINT24, BASE_HEX, VALS(vendorid_vals), 0x0, - "Vendor Identifier", HFILL} - }, - {&hf_docsis_vsif_vendor_unknown, - {"VSIF Encodings", "docsis_vsif.unknown", - FT_BYTES, BASE_NONE, NULL, 0x0, - "Unknown Vendor", HFILL} - }, - {&hf_docsis_vsif_cisco_numphones, - {"Number of phone lines", "docsis_vsif.cisco.numphones", - FT_UINT8, BASE_DEC, NULL, 0x0, - NULL, HFILL} - }, -#if 0 - {&hf_docsis_vsif_cisco_ipprec, - {"IP Precedence Encodings", "docsis_vsif.cisco.ipprec", - FT_BYTES, BASE_NONE, NULL, 0x0, - NULL, HFILL} - }, -#endif - {&hf_docsis_vsif_cisco_ipprec_val, - {"IP Precedence Value", "docsis_vsif.cisco.ipprec.value", - FT_UINT8, BASE_DEC, NULL, 0x0, - NULL, HFILL} - }, - {&hf_docsis_vsif_cisco_ipprec_bw, - {"IP Precedence Bandwidth", "docsis_vsif.cisco.ipprec.bw", - FT_UINT8, BASE_DEC, NULL, 0x0, - NULL, HFILL} - }, - {&hf_docsis_vsif_cisco_config_file, - {"IOS Config File", "docsis_vsif.cisco.iosfile", - FT_STRING, BASE_NONE, NULL, 0x0, - NULL, HFILL} - }, - {&hf_docsis_vsif_gex_loadbal_policy_id, - {".1 CM Load Balancing Policy ID", "docsis_vsif.gex.loadbal_policyid", - FT_UINT32, BASE_DEC, NULL, 0x0, - "General Extension Information - CM Load Balancing Policy ID", HFILL} - }, - {&hf_docsis_vsif_gex_loadbal_priority, - {".2 CM Load Balancing Priority", "docsis_vsif.gex.loadbal_priority", - FT_UINT32, BASE_DEC, NULL, 0x0, - "General Extension Information - CM Load Balancing Priority", HFILL} - }, - {&hf_docsis_vsif_gex_loadbal_group_id, - {".3 CM Load Balancing Group ID", "docsis_vsif.gex.loadbal_group_id", - FT_UINT32, BASE_DEC, NULL, 0x0, - "General Extension Information - CM Load Balancing Group ID", HFILL} - }, - {&hf_docsis_vsif_gex_ranging_class_id_extension, - {".4 CM Ranging Class ID Extension", "docsis_vsif.gex.ranging_class_id_extension", - FT_UINT32, BASE_DEC, NULL, 0x0, - "General Extension Information - CM Ranging Class ID Extension", HFILL} - }, - {&hf_docsis_vsif_gex_l2vpn_encoding, - {".5 L2VPN Encoding", "docsis_vsif.gex.l2vpn_encoding", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - L2VPN Encoding", HFILL} - }, - {&hf_docsis_vsif_gex_ecm, - {".6 Extended CMTS MIC Configuration Setting", "docsis_vsif.gex.extended_cmts_mic_configuration_setting", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - Extended CMTS MIC Configuration Setting", HFILL} - }, - {&hf_docsis_vsif_gex_ecm_extended_cmts_mic_hmac_type, - {"..1 Extended CMTS MIC Hmac type", "docsis_vsif.gex.extended_cmts_mic_hmac_type", - FT_UINT8, BASE_DEC, VALS(hmac_vals), 0x0, - "General Extension Information - Extended CMTS MIC Hmac type", HFILL} - }, - {&hf_docsis_vsif_gex_ecm_extended_cmts_mic_bitmap, - {"..2 Extended CMTS MIC Bitmap", "docsis_vsif.gex.extended_cmts_mic_bitmap", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - Extended CMTS MIC Bitmap", HFILL} - }, - {&hf_docsis_vsif_gex_ecm_explicit_extended_cmts_mic_digest_subtype, - {"..3 Explicit Extended CMTS MIC Digest Subtype", "docsis_vsif.gex.extended_cmts_mic_digest_subtype", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - Explicit Extended CMTS MIC Digest Subtype", HFILL} - }, - {&hf_docsis_vsif_gex_sav, - {".7 Source Address Verification (SAV) Authorization Encoding", "docsis_vsif.gex.sav", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - Source Address Verification (SAV) Authorization Encoding", HFILL} - }, - {&hf_docsis_vsif_gex_sav_group_name, - {"..1 SAV Group Name", "docsis_vsif.gex.sav.sav_group_name", - FT_STRING, BASE_NONE, NULL, 0x0, - "General Extension Information - SAV - SAV Group Name", HFILL} - }, - {&hf_docsis_vsif_gex_sav_static_prefix_rule, - {"..2 SAV Static Prefix Rule", "docsis_vsif.gex.sav.static_prefix_rule", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - SAV -Static Prefix Rule", HFILL} - }, - {&hf_docsis_vsif_gex_sav_static_prefix_addressv4, - {"...1 SAV Static Prefix Address", "docsis_vsif.gex.sav.spr.static_prefix_address4", - FT_IPv4, BASE_NONE, NULL, 0x0, - "General Extension Information - SAV -Static Prefix Rule - Static Prefix Address", HFILL} - }, - {&hf_docsis_vsif_gex_sav_static_prefix_addressv6, - {"...1 SAV Static Prefix Address", "docsis_vsif.gex.sav.spr.static_prefix_address6", - FT_IPv6, BASE_NONE, NULL, 0x0, - "General Extension Information - SAV -Static Prefix Rule - Static Prefix Address", HFILL} - }, - {&hf_docsis_vsif_gex_sav_static_prefix_length, - {"...2 SAV Static Prefix Length", "docsis_vsif.gex.sav.spr.static_prefix_length", - FT_UINT8, BASE_DEC, NULL, 0x0, - "General Extension Information - SAV -Static Prefix Rule - Static Prefix Length", HFILL} - }, - {&hf_docsis_vsif_gex_cmam, - {".9 CM Attribute Mask", "docsis_vsif.gex.cmam", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - CM Attribute Mask", HFILL} - }, - {&hf_docsis_vsif_gex_cmam_cm_required_downstream_attribute_mask, - {"..1 CM Required Downstream Attribute", "docsis_vsif.gex.cmam.cm_required_downstream_attribute", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - CM Attribute Mask - CM Required Downstream Attribute", HFILL} - }, - {&hf_docsis_vsif_gex_cmam_cm_forbidden_downstream_attribute_mask, - {"..2 CM Forbidden Downstream Attribute", "docsis_vsif.gex.cmam.cm_forbidden_downstream_attribute", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - CM Attribute Mask - CM Forbidden Downstream Attribute", HFILL} - }, - {&hf_docsis_vsif_gex_cmam_cm_required_upstream_attribute_mask, - {"..3 CM Required Upstream Attribute", "docsis_vsif.gex.cmam.cm_required_upstream_attribute", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - CM Attribute Mask - CM Required Upstream Attribute", HFILL} - }, - {&hf_docsis_vsif_gex_cmam_cm_forbidden_upstream_attribute_mask, - {"..4 CM Forbidden Upstream Attribute", "docsis_vsif.gex.cmam.cm_forbidden_upstream_attribute", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - CM Attribute Mask - CM Forbidden Upstream Attribute", HFILL} - }, - {&hf_docsis_vsif_gex_imja, - {".10 IP Multicast Join Authorization", "docsis_vsif.gex.imja", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ip_multicast_profile_name, - {"..1 IP Multicast Profile Name", "docsis_vsif.gex.imja.ip_multicast_profile_name", - FT_STRING, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Name", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr, - {"..2 IP Multicast Profile Join Authorization Static Session Rule", "docsis_vsif.gex.imja.ip_multicast_join_authorization_static_session_rule", - FT_BYTES, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_rule_priority, - {"...1 Rule Priority", "docsis_vsif.gex.imja.imja_ssr_rule_priority", - FT_UINT8, BASE_DEC, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Rule Priority", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_authorization_action, - {"...2 Authorization Action", "docsis_vsif.gex.imja.imja_ssr_authorization_action", - FT_UINT8, BASE_DEC, VALS(authorization_action_vals), 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Rule Priority", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_source_prefix_addressv4, - {"...3 Source Prefix Address", "docsis_vsif.gex.imja.imja_ssr_source_prefix_address4", - FT_IPv4, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Source Prefix Address", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_source_prefix_addressv6, - {"...3 Source Prefix Address", "docsis_vsif.gex.imja.imja_ssr_source_prefix_address6", - FT_IPv6, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Source Prefix Address", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_source_prefix_length, - {"...4 Source Prefix Length", "docsis_vsif.gex.imja.imja_ssr_source_prefix_length", - FT_UINT8, BASE_DEC, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Source Prefix Length", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_group_prefix_addressv4, - {"...5 Group Prefix Address", "docsis_vsif.gex.imja.imja_ssr_group_prefix_address4", - FT_IPv4, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Group Prefix Address", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_group_prefix_addressv6, - {"...5 Group Prefix Address", "docsis_vsif.gex.imja.imja_ssr_group_prefix_address6", - FT_IPv6, BASE_NONE, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Group Prefix Address", HFILL} - }, - {&hf_docsis_vsif_gex_imja_ssr_group_prefix_length, - {"...6 Group Prefix Length", "docsis_vsif.gex.imja.imja_ssr_group_prefix_length", - FT_UINT8, BASE_DEC, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - IP Multicast Profile Join Authorization Static Session Rule - Group Prefix Length", HFILL} - }, - {&hf_docsis_vsif_gex_imja_maximum_multicast_sessions, - {"..3 Maximum Multicast Sessions", "docsis_vsif.gex.imja.imja_maximum_multicast_sessions", - FT_UINT16, BASE_DEC, NULL, 0x0, - "General Extension Information - IP Multicast Join Authorization - Maximum Multicast Sessions", HFILL} - }, - {&hf_docsis_vsif_gex_service_type_identifier, - {".11 Service Type Identifier", "docsis_vsif.gex.service_type_identifier", - FT_STRING, BASE_NONE, NULL, 0x0, - "General Extension Information - Service Type Identifier", HFILL} - }, - {&hf_docsis_vsif_tlv_unknown, - {"Unknown VSIF TLV", "docsis_vsif.unknown", - FT_BYTES, BASE_NONE, NULL, 0x0, - NULL, HFILL} - }, - }; - - static gint *ett[] = { - &ett_docsis_vsif, - &ett_docsis_vsif_ipprec, - &ett_docsis_vsif_gex_ecm, - &ett_docsis_vsif_gex_sav, - &ett_docsis_vsif_gex_sav_spr, - &ett_docsis_vsif_gex_cmam, - &ett_docsis_vsif_gex_imja, - &ett_docsis_vsif_gex_imja_ssr - }; - - expert_module_t* expert_docsis_vsif; - - static ei_register_info ei[] = { - {&ei_docsis_vsif_tlvlen_bad, { "docsis_vsif.tlvlenbad", PI_MALFORMED, PI_ERROR, "Bad TLV length", EXPFILL}}, - {&ei_docsis_vsif_tlvtype_unknown, { "docsis_vsif.tlvtypeunknown", PI_PROTOCOL, PI_WARN, "Unknown TLV type", EXPFILL}}, - }; - - proto_docsis_vsif = - proto_register_protocol ("DOCSIS Vendor Specific Encodings", - "DOCSIS VSIF", "docsis_vsif"); - - proto_register_field_array (proto_docsis_vsif, hf, array_length (hf)); - proto_register_subtree_array (ett, array_length (ett)); - expert_docsis_vsif = expert_register_protocol(proto_docsis_vsif); - expert_register_field_array(expert_docsis_vsif, ei, array_length(ei)); - - register_dissector ("docsis_vsif", dissect_vsif, proto_docsis_vsif); -} - -void -proto_reg_handoff_docsis_vsif (void) -{ -#if 0 - dissector_handle_t docsis_vsif_handle; - - docsis_vsif_handle = find_dissector ("docsis_vsif"); - dissector_add_uint ("docsis", 0xFD, docsis_vsif_handle); -#endif -} - -/* - * Editor modelines - http://www.wireshark.org/tools/modelines.html - * - * Local Variables: - * c-basic-offset: 2 - * tab-width: 8 - * indent-tabs-mode: nil - * End: - * - * ex: set shiftwidth=2 tabstop=8 expandtab: - * :indentSize=2:tabSize=8:noTabs=true: - */ |