?? plugins-wimax-wimax_utils.c
字號:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_frame_number, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_frame_number, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_SS_RANDOM:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_ss_random, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_ss_random, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_BS_RANDOM:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_bs_random, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_bs_random, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PRE_PAK:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_pre_pak, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_pre_pak, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_BS_CERTIFICATE:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_bs_certificate, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_bs_certificate, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_SIG_BS:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_sig_bs, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_sig_bs, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_MS_MAC_ADDRESS:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_ms_mac_address, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_ms_mac_address, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_CMAC_DIGEST:
/* add TLV subtree */
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_cmac_digest, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_cmac_digest_pn, tvb, offset, 4, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_cmac_digest_value, tvb, (offset + 4), 8, FALSE);
break;
case PKM_ATTR_KEY_PUSH_MODES:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_push_modes, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_push_modes, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_KEY_PUSH_COUNTER:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_key_push_counter, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_key_push_counter, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_GKEK:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_gkek, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_gkek, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_SIG_SS:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_sig_ss, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_sig_ss, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_AKID:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_akid, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_akid, tvb, offset, tlv_len, FALSE);
break;
default:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_msg_unknown_type, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_unknown_type, tvb, offset, tlv_len, FALSE);
break;
}
offset += tlv_len;
} /* end of TLV process while loop */
}
/******************************************************************/
/* wimax_tek_parameters_decoder() */
/* decode and display the WiMax TEK Parameters subattributes */
/* parameter: */
/* tvb - pointer of the tvb of service flow encodings */
/* tree - pointer of Wireshark display tree */
/* pinfo - pointer of Wireshark packet information structure */
/******************************************************************/
void wimax_tek_parameters_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint offset;
guint tvb_len, tlv_len, tlv_value_offset;
gint tlv_type;
proto_tree *tlv_tree = NULL;
tlv_info_t tlv_info;
/* get the tvb reported length */
tvb_len = tvb_reported_length(tvb);
/* do nothing if the TLV fields is not exist */
if(!tvb_len)
return;
/* report error if the packet size is less than 2 bytes (type+length) */
if(tvb_len < 2)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Invalid TEK Params");
}
return;
}
/* process PKM Message TEK Parameters (11.9.8) */
for(offset = 0; offset < tvb_len; )
{
/* get the TLV information */
init_tlv_info(&tlv_info, tvb, offset);
/* get the TLV type */
tlv_type = get_tlv_type(&tlv_info);
/* get the TLV length */
tlv_len = get_tlv_length(&tlv_info);
if(tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "TEK Param TLV error");
}
proto_tree_add_item(tree, hf_cst_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
break;
}
/* get the TLV value offset */
tlv_value_offset = get_tlv_value_offset(&tlv_info);
#ifdef DEBUG /* for debug only */
proto_tree_add_protocol_format(tree, proto_wimax_utility_decoders, tvb, offset, (tlv_len + tlv_value_offset), "TEK Parameters Subattributes TLV Type: %u (%u bytes, offset=%u, tvb_len=%u)", tlv_type, (tlv_len + tlv_value_offset), offset, tvb_len);
#endif
/* update the offset for the TLV value */
offset += tlv_value_offset;
/* parse TEK Parameters Subattributes (table 372) */
switch (tlv_type)
{
case PKM_ATTR_TEK:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_msg_attr_tek, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_attr_tek, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_KEY_LIFE_TIME:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_msg_attr_key_life_time, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_attr_key_life_time, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_KEY_SEQ_NUM:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_msg_attr_key_seq_num, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_attr_key_seq_num, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_CBC_IV:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_msg_attr_cbc_iv, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_attr_cbc_iv, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_ASSOCIATED_GKEK_SEQ_NUM:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_attr_associated_gkek_seq_number, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_attr_associated_gkek_seq_number, tvb, offset, tlv_len, FALSE);
break;
default:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_msg_unknown_type, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_unknown_type, tvb, offset, tlv_len, FALSE);
break;
}
offset += tlv_len;
} /* end of TLV process while loop */
}
/******************************************************************/
/* wimax_pkm_configuration_settings_decoder() */
/* decode and display the WiMax PKM Configuration Settings */
/* parameter: */
/* tvb - pointer of the tvb of service flow encodings */
/* tree - pointer of Wireshark display tree */
/* pinfo - pointer of Wireshark packet information structure */
/******************************************************************/
void wimax_pkm_configuration_settings_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint offset;
guint tvb_len, tlv_len, tlv_value_offset;
gint tlv_type;
proto_tree *tlv_tree;
tlv_info_t tlv_info;
/* get the tvb reported length */
tvb_len = tvb_reported_length(tvb);
/* do nothing if the TLV fields is not exist */
if(!tvb_len)
return;
/* report error if the packet size is less than 2 bytes (type+length) */
if(tvb_len < 2)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Invalid PKM Config Settings");
}
return;
}
/* process PKM Configuration Settings (11.9.19) */
for(offset = 0; offset < tvb_len; )
{
/* get the TLV information */
init_tlv_info(&tlv_info, tvb, offset);
/* get the TLV type */
tlv_type = get_tlv_type(&tlv_info);
/* get the TLV length */
tlv_len = get_tlv_length(&tlv_info);
if(tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "PKM Config Settings TLV error");
}
proto_tree_add_item(tree, hf_cst_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
break;
}
/* get the TLV value offset */
tlv_value_offset = get_tlv_value_offset(&tlv_info);
#ifdef DEBUG /* for debug only */
proto_tree_add_protocol_format(tree, proto_wimax_utility_decoders, tvb, offset, (tlv_len + tlv_value_offset), "PKM Configuration Settings TLV Type: %u (%u bytes, offset=%u, tvb_len=%u)", tlv_type, (tlv_len + tlv_value_offset), offset, tvb_len);
#endif
/* update the offset for the TLV value */
offset += tlv_value_offset;
/* parse PKM Configuration Settings (11.9.19.1 - 11.9.19.7 */
switch (tlv_type)
{
case PKM_ATTR_PKM_CONFIG_SETTINGS_AUTHORIZE_WAIT_TIMEOUT:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_authorize_waitout, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_authorize_waitout, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PKM_CONFIG_SETTINGS_REAUTHORIZE_WAIT_TIMEOUT:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_reauthorize_waitout, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_reauthorize_waitout, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PKM_CONFIG_SETTINGS_AUTHORIZATION_GRACE_TIME:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_grace_time, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_grace_time, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PKM_CONFIG_SETTINGS_OPERATIONAL_WAIT_TIMEOUT:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_operational_waittime, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_operational_waittime, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PKM_CONFIG_SETTINGS_REKEY_WAIT_TIMEOUT:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_rekey_wait_timeout, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_rekey_wait_timeout, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PKM_CONFIG_SETTINGS_TEK_GRACE_TIME:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_tek_grace_time, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_tek_grace_time, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_PKM_CONFIG_SETTINGS_AUTHORIZE_REJECT_WAIT_TIMEOUT:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_authorize_reject_wait_timeout, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_config_settings_authorize_reject_wait_timeout, tvb, offset, tlv_len, FALSE);
break;
default:
tlv_tree = add_tlv_subtree(&tlv_info, ett_pkm_tlv_encoded_attributes_decoder, tree, hf_pkm_config_settings_authorize_reject_wait_timeout, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_unknown_type, tvb, offset, tlv_len, FALSE);
break;
}
offset += tlv_len;
} /* end of TLV process while loop */
}
/******************************************************************/
/* wimax_sa_descriptor_decoder() */
/* decode and display the WiMax PKM message SA-Descriptor */
/* parameter: */
/* tvb - pointer of the tvb of service flow encodings */
/* tree - pointer of Wireshark display tree */
/* pinfo - pointer of Wireshark packet information structure */
/******************************************************************/
void wimax_sa_descriptor_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint offset;
guint tvb_len, tlv_len, tlv_value_offset;
gint tlv_type;
proto_tree *tlv_tree = NULL;
tlv_info_t tlv_info;
/* get the tvb reported length */
tvb_len = tvb_reported_length(tvb);
/* do nothing if the TLV fields is not exist */
if(!tvb_len)
return;
/* report error if the packet size is less than 2 bytes (type+length) */
if(tvb_len < 2)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Invalid SA-Descriptor");
}
return;
}
/* process SA-Descriptor (11.9.17) */
for(offset = 0; offset < tvb_len; )
{
/* get the TLV information */
init_tlv_info(&tlv_info, tvb, offset);
/* get the TLV type */
tlv_type = get_tlv_type(&tlv_info);
/* get the TLV length */
tlv_len = get_tlv_length(&tlv_info);
if(tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "SA-Descriptor TLV error");
}
proto_tree_add_item(tree, hf_cst_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
break;
}
/* get the TLV value offset */
tlv_value_offset = get_tlv_value_offset(&tlv_info);
#ifdef DEBUG /* for debug only */
proto_tree_add_protocol_format(tree, proto_wimax_utility_decoders, tvb, offset, (tlv_len + tlv_value_offset), "SA-Descriptor TLV Type: %u (%u bytes, offset=%u, tvb_len=%u)", tlv_type, (tlv_len + tlv_value_offset), offset, tvb_len);
#endif
/* update the offset for the TLV value */
offset += tlv_value_offset;
/* parse SA-Descriptor (table 380) */
switch (tlv_type)
{
case PKM_ATTR_SAID:
tlv_tree = add_tlv_subtree(&tlv_info, ett_sa_descriptor_decoder, tree, hf_pkm_msg_attr_said, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_msg_attr_said, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_SA_TYPE:
tlv_tree = add_tlv_subtree(&tlv_info, ett_sa_descriptor_decoder, tree, hf_pkm_sa_type, tvb, offset, tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_pkm_sa_type, tvb, offset, tlv_len, FALSE);
break;
case PKM_ATTR_SA_SERVICE_TYPE:
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