802.11 : 11ac decode update , base on IEEE-11ac-2013
IE193 Extended BSS Load element (8.4.2.162) IE194 Wide Bandwidth Channel Switch element (8.4.2.163) IE199 Operating mode notification And extend capabilities octet 8. Bug:10258 Change-Id: If5ef2b72eec2bdbf1d111eaa2b4d2d5954b7413b Reviewed-on: https://code.wireshark.org/review/2915 Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
This commit is contained in:
Luke Chou
Alexis La Goutte
parent
acf39ff724
commit
ea8738306e
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@ -828,7 +828,11 @@ enum fixed_field {
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#define TAG_ANTENNA_SECTOR_ID 190 /* IEEE Std 802.11ad */
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#define TAG_VHT_CAPABILITY 191 /* IEEE Std 802.11ac/D3.1 */
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#define TAG_VHT_OPERATION 192 /* IEEE Std 802.11ac/D3.1 */
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#define TAG_EXT_BSS_LOAD 193 /* IEEE Std 802.11ac */
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#define TAG_WIDE_BW_CHANNEL_SWITCH 194 /* IEEE Std 802.11ac */
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#define TAG_VHT_TX_PWR_ENVELOPE 195 /* IEEE Std 802.11ac/D5.0 */
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#define TAG_CHANNEL_SWITCH_WRAPPER 196 /* IEEE Std 802.11ac */
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#define TAG_OPERATING_MODE_NOTIFICATION 199 /* IEEE Std 802.11ac */
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#define TAG_VENDOR_SPECIFIC_IE 221
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static const value_string tag_num_vals[] = {
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@ -991,7 +995,11 @@ static const value_string tag_num_vals[] = {
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{ TAG_ANTENNA_SECTOR_ID, "Antenna Sector ID" },
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{ TAG_VHT_CAPABILITY, "VHT Capabilities (IEEE Std 802.11ac/D3.1)" },
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{ TAG_VHT_OPERATION, "VHT Operation (IEEE Std 802.11ac/D3.1)" },
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{ TAG_EXT_BSS_LOAD, "Extended BSS Load" },
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{ TAG_WIDE_BW_CHANNEL_SWITCH, "Wide Bandwidth Channel Switch" },
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{ TAG_VHT_TX_PWR_ENVELOPE, "VHT Tx Power Envelope (IEEE Std 802.11ac/D5.0)" },
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{ TAG_CHANNEL_SWITCH_WRAPPER, "Channel Switch Wrapper" },
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{ TAG_OPERATING_MODE_NOTIFICATION, "Operating Mode Notification" },
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{ TAG_VENDOR_SPECIFIC_IE, "Vendor Specific" },
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{ 0, NULL }
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};
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@ -2538,6 +2546,15 @@ static const value_string ht_rx_stbc_flag[] = {
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{0x00, NULL}
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};
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/* IEEE Stc 802.11ac-2013 8.4.2.29 Extended Capabilities element*/
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static const value_string vht_max_mpdu_in_amsdu[] = {
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{0x00, "No limit"},
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{0x01, "32"},
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{0x02, "16"},
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{0x03, "8"},
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{0, NULL}
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};
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/* IEEE Stc 802.11ac/D3.1 */
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static const value_string vht_max_mpdu_length_flag[] = {
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@ -3028,6 +3045,33 @@ static const value_string allocation_type[] = {
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{0, NULL}
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};
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static const value_string vht_operation_info_channel_width[] = {
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{0x00, "20MHz or 40MHz"},
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{0x01, "80MHZ"},
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{0x10, "160MHz"},
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{0x11, "80MHz+80MHz"},
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{0, NULL}
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};
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static const value_string operating_mode_field_channel_width[] = {
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{0x00, "20MHz"},
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{0x01, "40MHZ"},
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{0x02, "80MHz"},
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{0x03, "160MHz or 80MHz+80MHz"},
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{0, NULL}
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};
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static const value_string operat_mode_field_rxnss[] = {
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{0x0, "1Nss"},
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{0x1, "2Nss"},
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{0x2, "3Nss"},
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{0x3, "4Nss"},
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{0x4, "5Nss"},
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{0x5, "6Nss"},
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{0x6, "7Nss"},
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{0x7, "8Nss"},
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{0, NULL}
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};
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static int proto_wlan = -1;
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static int proto_aggregate = -1;
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static gboolean ieee80211_tvb_invalid = FALSE;
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@ -3686,6 +3730,24 @@ static int hf_ieee80211_ht_psmp = -1;
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static int hf_ieee80211_ht_40_mhz_intolerant = -1;
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static int hf_ieee80211_ht_l_sig = -1;
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static int hf_ieee80211_ext_bss_mu_mimo_capable_sta_count = -1;
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static int hf_ieee80211_ext_bss_ss_underutilization = -1;
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static int hf_ieee80211_ext_bss_observable_sec_20mhz_utilization = -1;
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static int hf_ieee80211_ext_bss_observable_sec_40mhz_utilization = -1;
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static int hf_ieee80211_ext_bss_observable_sec_80mhz_utilization = -1;
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static int hf_ieee80211_wide_bw_new_channel_width = -1;
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static int hf_ieee80211_wide_bw_new_channel_center_freq_segment0 = -1;
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static int hf_ieee80211_wide_bw_new_channel_center_freq_segment1 = -1;
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#if 0
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static int hf_ieee80211_ctl_switch_country = -1;
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static int hf_ieee80211_ctl_switch_bw_ch_switch = -1;
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static int hf_ieee80211_ctl_switch_vht_transmit_power_envelope = -1;
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#endif
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static int hf_ieee80211_operat_notification_mode = -1;
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static int hf_ieee80211_operat_mode_field_channel_width = -1;
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static int hf_ieee80211_operat_mode_field_reserved = -1;
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static int hf_ieee80211_operat_mode_field_rxnss = -1;
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static int hf_ieee80211_operat_mode_field_rxnsstype= -1;
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static int hf_ieee80211_ampduparam = -1;
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static int hf_ieee80211_ampduparam_vs = -1;
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static int hf_ieee80211_ampduparam_mpdu = -1;
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@ -3994,8 +4056,13 @@ static int hf_ieee80211_tag_extended_capabilities_b45 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b46 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b47 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b48 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b61 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b62 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b63 = -1;
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static int hf_ieee80211_tag_extended_capabilities_b64 = -1;
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static int hf_ieee80211_tag_extended_capabilities_o7 = -1;
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static int hf_ieee80211_tag_extended_capabilities_o8 = -1;
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static int hf_ieee80211_tag_extended_capabilities_o9 = -1;
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static int hf_ieee80211_tag_cisco_ccx1_unknown = -1;
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static int hf_ieee80211_tag_cisco_ccx1_name = -1;
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@ -4951,6 +5018,7 @@ static gint ett_tag_ex_cap5 = -1;
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static gint ett_tag_ex_cap6 = -1;
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static gint ett_tag_ex_cap7 = -1;
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static gint ett_tag_ex_cap8 = -1;
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static gint ett_tag_ex_cap9 = -1;
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static gint ett_tag_rm_cap1 = -1;
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static gint ett_tag_rm_cap2 = -1;
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@ -10599,9 +10667,33 @@ dissect_extended_capabilities_ie(packet_info *pinfo, proto_tree *tree,
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ti_ex_cap = proto_tree_add_item(tree, hf_ieee80211_tag_extended_capabilities, tvb, offset, 1, ENC_NA);
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proto_item_append_text(ti_ex_cap, " (octet 8)");
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ex_cap_tree = proto_item_add_subtree(ti_ex_cap, ett_tag_ex_cap8);
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proto_tree_add_item(ex_cap_tree, hf_ieee80211_tag_extended_capabilities_b61, tvb, offset, 1, ENC_NA);
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proto_tree_add_item(ex_cap_tree, hf_ieee80211_tag_extended_capabilities_b62, tvb, offset, 1, ENC_NA);
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/* Std802.11ac-2013, b63-64 indicate the Max Number of MSDUs in AMSDU. */
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ti_ex_cap = proto_tree_add_item(ex_cap_tree, hf_ieee80211_tag_extended_capabilities_b63, tvb, offset, 1, ENC_NA);
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if (offset+1 < tag_end) {
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proto_item_append_text(ti_ex_cap, " (b63-64 Max Number of MSDUs in AMSDU: %s)",
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val_to_str((tvb_get_guint8(tvb,offset) & 0x80) + ((tvb_get_guint8(tvb,offset+1) & 0x1) << 1),
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vht_max_mpdu_in_amsdu,"Unknown:%d"));
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}
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proto_tree_add_item(ex_cap_tree, hf_ieee80211_tag_extended_capabilities_o8, tvb, offset, 1, ENC_NA);
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offset += 1;
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/* Extended Capability octet 9 */
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if (offset >= tag_end) {
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return offset;
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}
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ti_ex_cap = proto_tree_add_item(tree, hf_ieee80211_tag_extended_capabilities, tvb, offset, 1, ENC_NA);
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proto_item_append_text(ti_ex_cap, " (octet 9)");
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ex_cap_tree = proto_item_add_subtree(ti_ex_cap, ett_tag_ex_cap9);
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ti_ex_cap = proto_tree_add_item(ex_cap_tree, hf_ieee80211_tag_extended_capabilities_b64, tvb, offset, 1, ENC_NA);
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proto_item_append_text(ti_ex_cap, " (b63-64 Max Number of MSDUs in AMSDU)");
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proto_tree_add_item(ex_cap_tree, hf_ieee80211_tag_extended_capabilities_o9, tvb, offset, 1, ENC_NA);
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offset += 1;
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return offset;
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}
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static int
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@ -11221,6 +11313,58 @@ dissect_ric_descriptor(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int
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}
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return offset;
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}
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static int
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dissect_ext_bss_load(proto_tree *tree, tvbuff_t *tvb, int offset)
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{
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proto_tree_add_item(tree, hf_ieee80211_ext_bss_mu_mimo_capable_sta_count, tvb, offset, 2, ENC_LITTLE_ENDIAN);
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offset += 2;
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proto_tree_add_item(tree, hf_ieee80211_ext_bss_ss_underutilization, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_ieee80211_ext_bss_observable_sec_20mhz_utilization, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_ieee80211_ext_bss_observable_sec_40mhz_utilization, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_ieee80211_ext_bss_observable_sec_80mhz_utilization, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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return offset;
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}
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static int
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dissect_wide_bw_channel_switch(proto_tree *tree, tvbuff_t *tvb, int offset)
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{
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proto_tree_add_item(tree, hf_ieee80211_wide_bw_new_channel_width, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_ieee80211_wide_bw_new_channel_center_freq_segment0, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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proto_tree_add_item(tree, hf_ieee80211_wide_bw_new_channel_center_freq_segment1, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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return offset;
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}
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static int
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dissect_operating_mode_notification(proto_tree *tree, tvbuff_t *tvb, int offset)
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{
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proto_item *ti;
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proto_tree *bit_tree;
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/* Operating Mode field */
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ti = proto_tree_add_item(tree, hf_ieee80211_operat_notification_mode, tvb, offset, 1, ENC_NA);
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bit_tree = proto_item_add_subtree(ti, ett_mcsbit_tree);
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proto_tree_add_item(bit_tree, hf_ieee80211_operat_mode_field_channel_width, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(bit_tree, hf_ieee80211_operat_mode_field_reserved, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(bit_tree, hf_ieee80211_operat_mode_field_rxnss, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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proto_tree_add_item(bit_tree, hf_ieee80211_operat_mode_field_rxnsstype, tvb, offset, 1, ENC_LITTLE_ENDIAN);
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offset += 1;
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return offset;
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}
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static int
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dissect_mcs_set(proto_tree *tree, tvbuff_t *tvb, int offset, gboolean basic, gboolean vendorspecific)
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{
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@ -14391,10 +14535,22 @@ add_tagged_field(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset
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dissect_vht_operation_ie(tvb, pinfo, tree, offset+2, tag_len, ti_len);
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break;
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case TAG_EXT_BSS_LOAD:
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dissect_ext_bss_load(tree, tvb, offset+2);
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break;
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case TAG_WIDE_BW_CHANNEL_SWITCH:
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dissect_wide_bw_channel_switch(tree, tvb, offset+2);
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break;
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case TAG_VHT_TX_PWR_ENVELOPE:
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dissect_vht_tx_pwr_envelope(tvb, pinfo, tree, offset+2, tag_len, ti_len);
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break;
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case TAG_OPERATING_MODE_NOTIFICATION:
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dissect_operating_mode_notification(tree, tvb, offset + 2);
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break;
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case TAG_VENDOR_SPECIFIC_IE: /* 7.3.2.26 Vendor Specific information element (221) */
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case TAG_CISCO_VENDOR_SPECIFIC: /* This Cisco proprietary IE seems to mimic 221 */
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case TAG_SYMBOL_PROPRIETARY: /* This Symbol proprietary IE seems to mimic 221 */
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@ -22134,6 +22290,85 @@ proto_register_ieee80211 (void)
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FT_BOOLEAN, 16, TFS (&tfs_supported_not_supported), 0x8000,
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NULL, HFILL }},
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{&hf_ieee80211_ext_bss_mu_mimo_capable_sta_count,
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{"MU-MIMO Capable STA Count", "wlan_mgt.ext_bss.mu_mimo_capable_sta_count",
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FT_UINT16, BASE_DEC, NULL, 0,
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NULL, HFILL }},
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{&hf_ieee80211_ext_bss_ss_underutilization,
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{"Spatial Stream Underutilization", "wlan_mgt.ext_bss.ss_underutilization",
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FT_UINT8, BASE_HEX, NULL, 0,
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NULL, HFILL }},
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{&hf_ieee80211_ext_bss_observable_sec_20mhz_utilization,
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{"Observable Secondary 20MHz Utilization", "wlan_mgt.ext_bss.observable_sec_20mhz_utilization",
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FT_UINT8, BASE_HEX, NULL, 0,
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NULL, HFILL }},
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{&hf_ieee80211_ext_bss_observable_sec_40mhz_utilization,
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{"Observable Secondary 40MHz Utilization", "wlan_mgt.ext_bss.observable_sec_40mhz_utilization",
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FT_UINT8, BASE_HEX, NULL, 0,
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NULL, HFILL }},
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{&hf_ieee80211_ext_bss_observable_sec_80mhz_utilization,
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{"Observable Secondary 80MHz Utilization", "wlan_mgt.ext_bss.observable_sec_80mhz_utilization",
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FT_UINT8, BASE_HEX, NULL, 0,
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NULL, HFILL }},
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{&hf_ieee80211_wide_bw_new_channel_width,
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{"New Channel Width", "wlan_mgt.wide_bw.new_channel_width",
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FT_UINT8, BASE_HEX, VALS(vht_operation_info_channel_width), 0x0,
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NULL, HFILL }},
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{&hf_ieee80211_wide_bw_new_channel_center_freq_segment0,
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{"New Channel Center Frequency Segment 0", "wlan_mgt.wide_bw.new_channel_center_freq_segment0",
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FT_UINT8, BASE_HEX_DEC, NULL, 0x0,
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NULL, HFILL }},
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{&hf_ieee80211_wide_bw_new_channel_center_freq_segment1,
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{"New Channel Center Frequency Segment 1", "wlan_mgt.wide_bw.new_channel_center_freq_segment1",
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FT_UINT8, BASE_HEX_DEC, NULL, 0x0,
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NULL, HFILL }},
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#if 0
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{&hf_ieee80211_ctl_switch_country,
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{"New Country subelement", "wlan_mgt.ctl_switch.country",
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FT_UINT8, BASE_HEX, NULL, 0xFF, NULL, HFILL }},
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{&hf_ieee80211_ctl_switch_bw_ch_switch,
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{"Wide Bandwidth Channel Switch subelement", "wlan_mgt.ctl_switch.bw_ch",
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FT_UINT8, BASE_HEX, NULL, 0xFF, NULL, HFILL }},
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{&hf_ieee80211_ctl_switch_vht_transmit_power_envelope,
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{"New VHT Transmit Power Envelope subelement", "wlan_mgt.ctl_switch.vht_transmit_pwr",
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FT_UINT8, BASE_HEX, NULL, 0xFF, NULL, HFILL }},
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#endif
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{&hf_ieee80211_operat_notification_mode,
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{"Operating Mode Notification", "wlan_mgt.operat_notification_mode",
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FT_UINT8, BASE_HEX, NULL, 0x0,
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NULL, HFILL }},
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{&hf_ieee80211_operat_mode_field_channel_width,
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{"Channel Width", "wlan_mgt.operat_mode_field.channelwidth",
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FT_UINT8, BASE_HEX, VALS (&operating_mode_field_channel_width), 0x03,
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NULL, HFILL }},
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{&hf_ieee80211_operat_mode_field_reserved,
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{"Reserved", "wlan_mgt.operat_mode_field.reserved",
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FT_UINT8, BASE_HEX, NULL, 0x0C,
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NULL, HFILL }},
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{&hf_ieee80211_operat_mode_field_rxnss,
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{"Rx NSS", "wlan_mgt.operat_mode_field.rxnss",
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FT_UINT8, BASE_HEX, VALS (&operat_mode_field_rxnss), 0x70,
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NULL, HFILL }},
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{&hf_ieee80211_operat_mode_field_rxnsstype,
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{"Rx NSS Type", "wlan_mgt.operat_mode_field.rxnsstype",
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FT_UINT8, BASE_HEX, NULL, 0x80,
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"Indicate that the Rx NSS subfield carries the maximum number of spatial streams that the STA can receive", HFILL }},
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{&hf_ieee80211_ampduparam,
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{"A-MPDU Parameters", "wlan_mgt.ht.ampduparam",
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FT_UINT8, BASE_HEX, NULL, 0,
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@ -24021,10 +24256,35 @@ proto_register_ieee80211 (void)
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"Must be zero", HFILL }},
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/* Extended Capability octet 8 */
|
||||
{&hf_ieee80211_tag_extended_capabilities_b61,
|
||||
{"TDLS Wider Bandwidth", "wlan_mgt.extcap.b61",
|
||||
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x20,
|
||||
NULL, HFILL }},
|
||||
|
||||
{&hf_ieee80211_tag_extended_capabilities_b62,
|
||||
{"Operating Mode Notification", "wlan_mgt.extcap.b62",
|
||||
FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), 0x40,
|
||||
NULL, HFILL }},
|
||||
|
||||
{&hf_ieee80211_tag_extended_capabilities_b63,
|
||||
{"Max Number Of MSDUs In A-MSDU", "wlan_mgt.extcap.b63",
|
||||
FT_UINT8, BASE_DEC, NULL, 0x80,
|
||||
"Part 1 (bit63)", HFILL }},
|
||||
|
||||
{&hf_ieee80211_tag_extended_capabilities_o8,
|
||||
{"Reserved", "wlan_mgt.extcap.o8",
|
||||
FT_UINT8, BASE_HEX, NULL, 0xff,
|
||||
FT_UINT8, BASE_HEX, NULL, 0x1f,
|
||||
"Must be zero", HFILL }},
|
||||
|
||||
/* Extended Capability octet 9 */
|
||||
{&hf_ieee80211_tag_extended_capabilities_b64,
|
||||
{"Max Number Of MSDUs In A-MSDU64", "wlan_mgt.extcap.b64",
|
||||
FT_UINT8, BASE_DEC, NULL, 0x01,
|
||||
"Part 2 (bit64)", HFILL }},
|
||||
|
||||
{&hf_ieee80211_tag_extended_capabilities_o9,
|
||||
{"Reserved", "wlan_mgt.extcap.o9",
|
||||
FT_UINT8, BASE_HEX, NULL, 0xfe,
|
||||
"Must be zero", HFILL }},
|
||||
|
||||
{&hf_ieee80211_tag_cisco_ccx1_unknown,
|
||||
|
|
|
|||
Loading…
Reference in New Issue