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ifconfig: 802.11: decode more information elements (IEs)
Start dealing with Element ID Extension present (IE T=255) and start parsing elemants from the Element ID Extension set. Namely (partially) decode HE_CAPA, HE_OPER, MU_EDCA_PARAM_SET, and as well as SUP_OP_CLASS. For length reasons also rename UNKNOWN_ELEMID_%d to ELEMID_%d. Sponsored by: The FreeBSD Foundation MFC after: 3 days Reviewed by: adrian Differential Revision: https://reviews.freebsd.org/D50678
This commit is contained in:
Bjoern A. Zeeb
parent
2ab7cbdc34
commit
a2a15732eb
1 changed files with 226 additions and 3 deletions
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@ -2778,6 +2778,177 @@ printwmeinfo(if_ctx *ctx, const char *tag, const u_int8_t *ie)
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}
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}
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static void
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printhecap(if_ctx *ctx, const char *tag, const uint8_t *ie)
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{
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const struct ieee80211_he_cap_elem *hecap;
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const struct ieee80211_he_mcs_nss_supp *mcsnss;
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unsigned int i;
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uint8_t chw;
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printf("%s", tag);
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if (!ctx->args->verbose)
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return;
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/* Check that the right size. */
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if (ie[1] < 1 + sizeof(*hecap) + 4) {
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printf("<err: he_cap inval. length %#0x>", ie[1]);
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return;
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}
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/* Skip Element ID, Length, EID Extension. */
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hecap = (const struct ieee80211_he_cap_elem *)(ie + 3);
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/* XXX-BZ we need to somehow decode each field? */
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printf("<mac_cap");
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for (i = 0; i < nitems(hecap->mac_cap_info); i++)
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printf(" %#04x", hecap->mac_cap_info[i]);
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printf(" phy_cap");
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for (i = 0; i < nitems(hecap->phy_cap_info); i++)
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printf(" %#04x", hecap->phy_cap_info[i]);
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chw = hecap->phy_cap_info[0];
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ie = (const uint8_t *)(const void *)(hecap + 1);
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mcsnss = (const struct ieee80211_he_mcs_nss_supp *)ie;
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/* Cannot use <= as < is a delimiter. */
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printf(" rx/tx_he_mcs map: loweq80 %#06x/%#06x",
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mcsnss->rx_mcs_80, mcsnss->tx_mcs_80);
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ie += 2;
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if ((chw & (1<<2)) != 0) {
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printf(" 160 %#06x/%#06x",
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mcsnss->rx_mcs_160, mcsnss->tx_mcs_160);
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ie += 2;
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}
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if ((chw & (1<<3)) != 0) {
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printf(" 80+80 %#06x/%#06x",
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mcsnss->rx_mcs_80p80, mcsnss->tx_mcs_80p80);
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ie += 2;
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}
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/* TODO: ppet = (struct ... *)ie; */
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printf(">");
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}
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static void
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printheoper(if_ctx *ctx, const char *tag, const uint8_t *ie)
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{
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printf("%s", tag);
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if (ctx->args->verbose) {
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const struct ieee80211_he_operation *heoper;
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uint32_t params;
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/* Check that the right size. */
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if (ie[1] < 1 + sizeof(*heoper)) {
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printf("<err: he_oper inval. length %#0x>", ie[1]);
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return;
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}
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/* Skip Element ID, Length, EID Extension. */
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heoper = (const struct ieee80211_he_operation *)(ie + 3);
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/* XXX-BZ we need to somehow decode each field? */
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params = heoper->he_oper_params & 0x00ffffff;
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printf("<params %#08x", params);
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printf(" bss_col %#04x", (heoper->he_oper_params & 0xff000000) >> 24);
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printf(" mcs_nss %#06x", heoper->he_mcs_nss_set);
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if ((params & (1 << 14)) != 0) {
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printf(" vht_op 0-3");
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}
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if ((params & (1 << 15)) != 0) {
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printf(" max_coh_bssid 0-1");
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}
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if ((params & (1 << 17)) != 0) {
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printf(" 6ghz_op 0-5");
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}
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printf(">");
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}
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}
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static void
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printmuedcaparamset(if_ctx *ctx, const char *tag, const uint8_t *ie)
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{
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static const char *acnames[] = { "BE", "BK", "VO", "VI" };
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const struct ieee80211_mu_edca_param_set *mu_edca;
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int i;
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printf("%s", tag);
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if (!ctx->args->verbose)
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return;
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/* Check that the right size. */
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if (ie[1] != 1 + sizeof(*mu_edca)) {
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printf("<err: mu_edca inval. length %#04x>", ie[1]);
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return;
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}
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/* Skip Element ID, Length, EID Extension. */
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mu_edca = (const struct ieee80211_mu_edca_param_set *)(ie + 3);
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printf("<qosinfo 0x%x", mu_edca->mu_qos_info);
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ie++;
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for (i = 0; i < WME_NUM_AC; i++) {
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const struct ieee80211_he_mu_edca_param_ac_rec *ac =
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&mu_edca->param_ac_recs[i];
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printf(" %s[aifsn %u ecwmin %u ecwmax %u timer %u]", acnames[i],
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ac->aifsn,
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_IEEE80211_MASKSHIFT(ac->ecw_min_max, WME_PARAM_LOGCWMIN),
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_IEEE80211_MASKSHIFT(ac->ecw_min_max, WME_PARAM_LOGCWMAX),
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ac->mu_edca_timer);
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}
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printf(">");
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}
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static void
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printsupopclass(if_ctx *ctx, const char *tag, const u_int8_t *ie)
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{
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uint8_t len, i;
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printf("%s", tag);
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if (!ctx->args->verbose)
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return;
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/* Check that the right size. */
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len = ie[1];
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if (len < 2) {
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printf("<err: sup_op_class inval. length %#04x>", ie[1]);
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return;
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}
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ie += 2;
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i = 0;
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printf("<cur op class %u", *ie);
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i++;
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if (i < len && *(ie + i) != 130)
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printf(" op classes");
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while (i < len && *(ie + i) != 130) {
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printf(" %u", *(ie + i));
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i++;
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}
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if (i > 1 && i < len && *(ie + i) != 130) {
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printf(" parsing error at %#0x>", i);
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return;
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}
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/* Skip OneHundredAndThirty Delimiter. */
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i++;
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if (i < len && *(ie + i) != 0)
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printf(" ext seq");
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while (i < len && *(ie + i) != 0) {
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printf(" %u", *(ie + i));
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i++;
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}
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if (i > 1 && i < len && *(ie + i) != 0) {
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printf(" parsing error at %#0x>", i);
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return;
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}
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/* Skip Zero Delimiter. */
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i++;
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if ((i + 1) < len)
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printf(" duple seq");
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while ((i + 1) < len) {
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printf(" %u/%u", *(ie + i), *(ie + i + 1));
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i += 2;
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}
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printf(">");
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}
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static void
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printvhtcap(if_ctx *ctx, const char *tag, const u_int8_t *ie)
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{
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@ -3616,7 +3787,22 @@ iswpsoui(const uint8_t *frm)
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}
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static const char *
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iename(int elemid)
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ie_ext_name(uint8_t ext_elemid)
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{
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static char iename_buf[32];
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switch (ext_elemid) {
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case IEEE80211_ELEMID_EXT_HE_CAPA: return " HECAP";
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case IEEE80211_ELEMID_EXT_HE_OPER: return " HEOPER";
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case IEEE80211_ELEMID_EXT_MU_EDCA_PARAM_SET: return " MU_EDCA_PARAM_SET";
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}
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snprintf(iename_buf, sizeof(iename_buf), " ELEMID_EXT_%d",
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ext_elemid & 0xff);
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return (const char *) iename_buf;
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}
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static const char *
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iename(uint8_t elemid, const u_int8_t *vp)
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{
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static char iename_buf[64];
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switch (elemid) {
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@ -3638,6 +3824,8 @@ iename(int elemid)
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case IEEE80211_ELEMID_IBSSDFS: return " IBSSDFS";
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case IEEE80211_ELEMID_RESERVED_47:
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return " RESERVED_47";
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case IEEE80211_ELEMID_SUP_OP_CLASS:
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return " SUP_OP_CLASS";
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case IEEE80211_ELEMID_MOBILITY_DOMAIN:
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return " MOBILITY_DOMAIN";
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case IEEE80211_ELEMID_RRM_ENACAPS:
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@ -3648,12 +3836,41 @@ iename(int elemid)
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case IEEE80211_ELEMID_CCKM: return " CCKM";
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case IEEE80211_ELEMID_EXTCAP: return " EXTCAP";
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case IEEE80211_ELEMID_RSN_EXT: return " RSNXE";
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case IEEE80211_ELEMID_EXTFIELD:
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if (vp[1] >= 1)
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return ie_ext_name(vp[2]);
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break;
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}
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snprintf(iename_buf, sizeof(iename_buf), " UNKNOWN_ELEMID_%d",
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snprintf(iename_buf, sizeof(iename_buf), " ELEMID_%d",
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elemid);
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return (const char *) iename_buf;
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}
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static void
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printexties(if_ctx *ctx, const u_int8_t *vp, unsigned int maxcols)
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{
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const int verbose = ctx->args->verbose;
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if (vp[1] < 1)
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return;
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switch (vp[2]) {
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case IEEE80211_ELEMID_EXT_HE_CAPA:
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printhecap(ctx, " HECAP", vp);
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break;
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case IEEE80211_ELEMID_EXT_HE_OPER:
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printheoper(ctx, " HEOPER", vp);
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break;
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case IEEE80211_ELEMID_EXT_MU_EDCA_PARAM_SET:
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printmuedcaparamset(ctx, " MU_EDCA_PARAM_SET", vp);
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break;
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default:
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if (verbose)
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printie(ctx, iename(vp[0], vp), vp, 2+vp[1], maxcols);
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break;
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}
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}
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static void
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printies(if_ctx *ctx, const u_int8_t *vp, int ielen, unsigned int maxcols)
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{
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@ -3705,6 +3922,9 @@ printies(if_ctx *ctx, const u_int8_t *vp, int ielen, unsigned int maxcols)
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case IEEE80211_ELEMID_HTCAP:
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printhtcap(ctx, " HTCAP", vp);
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break;
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case IEEE80211_ELEMID_SUP_OP_CLASS:
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printsupopclass(ctx, " SUP_OP_CLASS", vp);
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break;
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case IEEE80211_ELEMID_HTINFO:
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if (verbose)
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printhtinfo(ctx, " HTINFO", vp);
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@ -3734,9 +3954,12 @@ printies(if_ctx *ctx, const u_int8_t *vp, int ielen, unsigned int maxcols)
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case IEEE80211_ELEMID_RSN_EXT:
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printrsnxe(ctx, " RSNXE", vp, 2+vp[1]);
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break;
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case IEEE80211_ELEMID_EXTFIELD:
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printexties(ctx, vp, maxcols);
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break;
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default:
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if (verbose)
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printie(ctx, iename(vp[0]), vp, 2+vp[1], maxcols);
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printie(ctx, iename(vp[0], vp), vp, 2+vp[1], maxcols);
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break;
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}
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ielen -= 2+vp[1];
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