iw: backport he operation scan support
With this patch, iw can now scan APs in the 6 GHz band and shows their operation parameters: ~~~ 6 Ghz Operation Information: 0x0103070f06 Primary Channel: 1 Channel Width: 80+80 or 160 MHz Regulatory Info: 0 Center Frequency Segment 0: 7 Center Frequency Segment 1: 15 Minimum Rate: 6 ~~~ Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> Link: https://github.com/openwrt/openwrt/pull/18240 Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Aleksander Jan Bajkowski
Robert Marko
parent
66f38834d6
commit
cf04dbcf4a
@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
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PKG_NAME:=iw
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PKG_VERSION:=6.9
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PKG_RELEASE:=1
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PKG_RELEASE:=2
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PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
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PKG_SOURCE_URL:=@KERNEL/software/network/iw
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@ -0,0 +1,153 @@
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From 422419e06d55a7c852d1f6f054a094e285ebaa27 Mon Sep 17 00:00:00 2001
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From: Christopher A Wills <christopher.a.wills@intel.com>
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Date: Tue, 30 Jul 2024 16:27:36 -0700
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Subject: [PATCH] scan: Add printing of HE Operation Element
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Signed-off-by: Christopher A Wills <christopher.a.wills@intel.com>
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---
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iw.h | 1 +
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scan.c | 8 +++++
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util.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 112 insertions(+)
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--- a/iw.h
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+++ b/iw.h
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@@ -222,6 +222,7 @@ void print_ampdu_spacing(__u8 spacing);
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void print_ht_capability(__u16 cap);
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void print_vht_info(__u32 capa, const __u8 *mcs);
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void print_he_capability(const uint8_t *ie, int len);
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+void print_he_operation(const uint8_t *ie, int len);
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void print_he_info(struct nlattr *nl_iftype);
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void print_eht_info(struct nlattr *nl_iftype, int band);
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void print_s1g_capability(const uint8_t *caps);
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--- a/scan.c
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+++ b/scan.c
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@@ -2384,8 +2384,16 @@ static void print_he_capa(const uint8_t
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print_he_capability(data, len);
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}
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+static void print_he_oper(const uint8_t type, uint8_t len, const uint8_t *data,
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+ const struct print_ies_data *ie_buffer)
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+{
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+ printf("\n");
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+ print_he_operation(data, len);
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+}
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+
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static const struct ie_print ext_printers[] = {
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[35] = { "HE capabilities", print_he_capa, 21, 54, BIT(PRINT_SCAN), },
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+ [36] = { "HE Operation", print_he_oper, 6, 15, BIT(PRINT_SCAN), },
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};
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static void print_extension(unsigned char len, unsigned char *ie,
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--- a/util.c
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+++ b/util.c
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@@ -1733,6 +1733,109 @@ void print_he_capability(const uint8_t *
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__print_he_capa(mac_cap, phy_cap - 1, mcs_set, mcs_len, NULL, 0, false);
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}
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+void print_he_operation(const uint8_t *ie, int len)
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+{
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+ uint8_t oper_parameters[3] = {ie[0], ie[1], ie[2] };
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+ uint8_t bss_color = ie[3];
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+ uint16_t nss_mcs_set = *(uint16_t*)(&ie[4]);
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+ uint8_t vht_oper_present = oper_parameters[1] & 0x40;
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+ uint8_t co_hosted_bss_present = oper_parameters[1] & 0x80;
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+ uint8_t uhb_operation_info_present = oper_parameters[2] & 0x02;
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+ uint8_t offset = 6;
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+
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+ printf("\t\tHE Operation Parameters: (0x%02x%02x%02x)\n",
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+ oper_parameters[2], oper_parameters[1], oper_parameters[0]);
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+ printf("\t\t\tDefault PE Duration: %hhu\n", oper_parameters[0] & 0x07);
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+ if (oper_parameters[0] & 0x08)
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+ printf("\t\t\tTWT Required\n");
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+
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+ printf("\t\t\tTXOP Duration RTS Threshold: %hu\n",
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+ (*(uint16_t*)(oper_parameters)) >> 4 & 0x03ff);
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+ if (oper_parameters[1] & 0x40)
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+ printf("\t\t\tVHT Operation Information Present\n");
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+
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+ if (oper_parameters[1] & 0x80)
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+ printf("\t\t\tCo-Hosted BSS\n");
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+
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+ if (oper_parameters[2] & 0x01)
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+ printf("\t\t\tER SU Disable\n");
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+
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+ if (oper_parameters[2] & 0x02)
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+ printf("\t\t\t6 GHz Operation Information Present\n");
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+
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+ printf("\t\tBSS Color: %hhu\n", bss_color & 0x3F);
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+ if (bss_color & 0x40)
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+ printf("\t\tPartial BSS Color\n");
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+
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+ if (bss_color & 0x80)
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+ printf("\t\tBSS Color Disabled\n");
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+
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+ printf("\t\tBasic HE-MCS NSS Set: 0x%04x\n", nss_mcs_set);
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+ for (int k = 0; k < 8; k++) {
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+ __u16 mcs = nss_mcs_set;
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+
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+ mcs >>= k * 2;
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+ mcs &= 0x3;
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+ printf("\t\t\t%d streams: ", k + 1);
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+ if (mcs == 3)
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+ printf("not supported\n");
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+ else
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+ printf("MCS 0-%d\n", 7 + (mcs * 2));
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+ }
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+
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+ if (vht_oper_present) {
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+ if (len - offset < 3) {
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+ printf("\t\tVHT Operation Info: Invalid\n");
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+ return;
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+ }
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+
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+ printf("\t\tVHT Operation Info: 0x%02x%02x%02x\n",
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+ ie[offset + 2], ie[offset + 1], ie[offset + 0]);
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+ offset += 3;
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+ }
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+
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+ if (co_hosted_bss_present) {
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+ if (len - offset < 1) {
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+ printf("\t\tMax Co-Hosted BSSID: Invalid\n");
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+ return;
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+ }
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+
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+ printf("\t\tMax Co-Hosted BSSID: %hhu\n", ie[offset]);
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+ offset += 1;
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+ }
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+
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+ if (uhb_operation_info_present) {
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+ if (len - offset < 5) {
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+ printf("\t\t6 GHz Operation Info: Invalid\n");
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+ return;
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+ } else {
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+ const uint8_t control = ie[offset + 1];
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+
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+ printf("\t\t6 Ghz Operation Information: 0x");
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+ for (uint8_t i = 0; i < 5; i++)
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+ printf("%02x", ie[offset + i]);
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+
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+ printf("\n");
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+ printf("\t\t\tPrimary Channel: %hhu\n", ie[offset]);
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+ printf("\t\t\tChannel Width: ");
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+ switch (control & 0x3) {
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+ case 0: printf("20 MHz\n"); break;
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+ case 1: printf("40 MHz\n"); break;
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+ case 2: printf("80 MHz\n"); break;
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+ case 3: printf("80+80 or 160 MHz\n"); break;
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+ }
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+
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+ if (control & 0x4)
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+ printf("\t\t\tDuplicate Beacon: True\n");
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+
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+ printf("\t\t\tRegulatory Info: %hhu\n", (control >> 3) & 0xf);
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+ printf("\t\t\tCenter Frequency Segment 0: %hhu\n", ie[offset+2]);
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+ printf("\t\t\tCenter Frequency Segment 1: %hhu\n", ie[offset+3]);
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+ printf("\t\t\tMinimum Rate: %hhu\n", ie[offset+4]);
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+ }
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+ }
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+}
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+
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void iw_hexdump(const char *prefix, const __u8 *buf, size_t size)
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{
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size_t i;
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@ -212,7 +212,7 @@
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if (len >= 4 && memcmp(data, wfa_oui, 3) == 0) {
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if (data[3] < ARRAY_SIZE(wfa_printers) &&
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wfa_printers[data[3]].name &&
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@@ -2483,6 +2494,7 @@ static void print_capa_non_dmg(__u16 cap
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@@ -2491,6 +2502,7 @@ static void print_capa_non_dmg(__u16 cap
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printf(" ESS");
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if (capa & WLAN_CAPABILITY_IBSS)
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printf(" IBSS");
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@ -220,7 +220,7 @@
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if (capa & WLAN_CAPABILITY_CF_POLLABLE)
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printf(" CfPollable");
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if (capa & WLAN_CAPABILITY_CF_POLL_REQUEST)
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@@ -2511,6 +2523,7 @@ static void print_capa_non_dmg(__u16 cap
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@@ -2519,6 +2531,7 @@ static void print_capa_non_dmg(__u16 cap
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printf(" DelayedBACK");
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if (capa & WLAN_CAPABILITY_IMM_BACK)
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printf(" ImmediateBACK");
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@ -228,7 +228,7 @@
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}
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static int print_bss_handler(struct nl_msg *msg, void *arg)
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@@ -2601,8 +2614,10 @@ static int print_bss_handler(struct nl_m
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@@ -2609,8 +2622,10 @@ static int print_bss_handler(struct nl_m
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else
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printf("\tfreq: %d\n", freq);
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@ -239,7 +239,7 @@
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}
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if (bss[NL80211_BSS_BEACON_INTERVAL])
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printf("\tbeacon interval: %d TUs\n",
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@@ -2796,6 +2811,7 @@ static int handle_stop_sched_scan(struct
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@@ -2804,6 +2819,7 @@ static int handle_stop_sched_scan(struct
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return 0;
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}
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@ -247,7 +247,7 @@
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COMMAND(scan, sched_start,
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SCHED_SCAN_OPTIONS,
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NL80211_CMD_START_SCHED_SCAN, 0, CIB_NETDEV, handle_start_sched_scan,
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@@ -2806,3 +2822,4 @@ COMMAND(scan, sched_start,
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@@ -2814,3 +2830,4 @@ COMMAND(scan, sched_start,
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COMMAND(scan, sched_stop, "",
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NL80211_CMD_STOP_SCHED_SCAN, 0, CIB_NETDEV, handle_stop_sched_scan,
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"Stop an ongoing scheduled scan.");
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