* it_version, it_pad,
* it_len, and data fields.
*/
- uint32_t it_present; /* A bitmap telling which
+ uint32_t it_present; /* A bitmap telling which
* fields are present. Set bit 31
* (0x80000000) to extend the
* bitmap by another 32 bits.
* by bitset of flag values, followed by the MCS rate index as
* in IEEE 802.11n.
*
+ *
+ * IEEE80211_RADIOTAP_AMPDU_STATUS u32, u16, u8, u8 unitless
+ *
+ * Contains the AMPDU information for the subframe.
+ *
+ * IEEE80211_RADIOTAP_VHT u16, u8, u8, u8[4], u8, u8, u16
+ *
+ * Contains VHT information about this frame.
+ *
* IEEE80211_RADIOTAP_VENDOR_NAMESPACE
* uint8_t OUI[3]
* uint8_t subspace
/* NB: gap for netbsd definitions */
IEEE80211_RADIOTAP_XCHANNEL = 18,
IEEE80211_RADIOTAP_MCS = 19,
+ IEEE80211_RADIOTAP_AMPDU_STATUS = 20,
+ IEEE80211_RADIOTAP_VHT = 21,
IEEE80211_RADIOTAP_NAMESPACE = 29,
IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30,
IEEE80211_RADIOTAP_EXT = 31
#define IEEE80211_RADIOTAP_MCS_HT_FORMAT_KNOWN 0x08
#define IEEE80211_RADIOTAP_MCS_FEC_TYPE_KNOWN 0x10
#define IEEE80211_RADIOTAP_MCS_STBC_KNOWN 0x20
+#define IEEE80211_RADIOTAP_MCS_NESS_KNOWN 0x40
+#define IEEE80211_RADIOTAP_MCS_NESS_BIT_1 0x80
/* For IEEE80211_RADIOTAP_MCS flags */
#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK 0x03
#define IEEE80211_RADIOTAP_MCS_STBC_2 2
#define IEEE80211_RADIOTAP_MCS_STBC_3 3
#define IEEE80211_RADIOTAP_MCS_STBC_SHIFT 5
+#define IEEE80211_RADIOTAP_MCS_NESS_BIT_0 0x80
+
+/* For IEEE80211_RADIOTAP_AMPDU_STATUS */
+#define IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN 0x0001
+#define IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN 0x0002
+#define IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN 0x0004
+#define IEEE80211_RADIOTAP_AMPDU_IS_LAST 0x0008
+#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR 0x0010
+#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN 0x0020
+
+/* For IEEE80211_RADIOTAP_VHT known */
+#define IEEE80211_RADIOTAP_VHT_STBC_KNOWN 0x0001
+#define IEEE80211_RADIOTAP_VHT_TXOP_PS_NA_KNOWN 0x0002
+#define IEEE80211_RADIOTAP_VHT_GUARD_INTERVAL_KNOWN 0x0004
+#define IEEE80211_RADIOTAP_VHT_SGI_NSYM_DIS_KNOWN 0x0008
+#define IEEE80211_RADIOTAP_VHT_LDPC_EXTRA_OFDM_SYM_KNOWN 0x0010
+#define IEEE80211_RADIOTAP_VHT_BEAMFORMED_KNOWN 0x0020
+#define IEEE80211_RADIOTAP_VHT_BANDWIDTH_KNOWN 0x0040
+#define IEEE80211_RADIOTAP_VHT_GROUP_ID_KNOWN 0x0080
+#define IEEE80211_RADIOTAP_VHT_PARTIAL_AID_KNOWN 0x0100
+
+/* For IEEE80211_RADIOTAP_VHT flags */
+#define IEEE80211_RADIOTAP_VHT_STBC 0x01
+#define IEEE80211_RADIOTAP_VHT_TXOP_PS_NA 0x02
+#define IEEE80211_RADIOTAP_VHT_SHORT_GI 0x04
+#define IEEE80211_RADIOTAP_VHT_SGI_NSYM_M10_9 0x08
+#define IEEE80211_RADIOTAP_VHT_LDPC_EXTRA_OFDM_SYM 0x10
+#define IEEE80211_RADIOTAP_VHT_BEAMFORMED 0x20
+
+#define IEEE80211_RADIOTAP_VHT_BANDWIDTH_MASK 0x1f
+
+#define IEEE80211_RADIOTAP_VHT_NSS_MASK 0x0f
+#define IEEE80211_RADIOTAP_VHT_MCS_MASK 0xf0
+#define IEEE80211_RADIOTAP_VHT_MCS_SHIFT 4
+
+#define IEEE80211_RADIOTAP_CODING_LDPC_USERn 0x01
+
/* Radiotap state */
/* This is used to save state when parsing/processing parameters */
static void
print_chaninfo(netdissect_options *ndo,
- int freq, int flags)
+ int freq, int flags, int presentflags)
{
ND_PRINT((ndo, "%u MHz", freq));
- if (IS_CHAN_FHSS(flags))
- ND_PRINT((ndo, " FHSS"));
- if (IS_CHAN_A(flags)) {
- if (flags & IEEE80211_CHAN_HALF)
- ND_PRINT((ndo, " 11a/10Mhz"));
- else if (flags & IEEE80211_CHAN_QUARTER)
- ND_PRINT((ndo, " 11a/5Mhz"));
- else
- ND_PRINT((ndo, " 11a"));
+ if (presentflags & (1 << IEEE80211_RADIOTAP_MCS)) {
+ /*
+ * We have the MCS field, so this is 11n, regardless
+ * of what the channel flags say.
+ */
+ ND_PRINT((ndo, " 11n"));
+ } else {
+ if (IS_CHAN_FHSS(flags))
+ ND_PRINT((ndo, " FHSS"));
+ if (IS_CHAN_A(flags)) {
+ if (flags & IEEE80211_CHAN_HALF)
+ ND_PRINT((ndo, " 11a/10Mhz"));
+ else if (flags & IEEE80211_CHAN_QUARTER)
+ ND_PRINT((ndo, " 11a/5Mhz"));
+ else
+ ND_PRINT((ndo, " 11a"));
+ }
+ if (IS_CHAN_ANYG(flags)) {
+ if (flags & IEEE80211_CHAN_HALF)
+ ND_PRINT((ndo, " 11g/10Mhz"));
+ else if (flags & IEEE80211_CHAN_QUARTER)
+ ND_PRINT((ndo, " 11g/5Mhz"));
+ else
+ ND_PRINT((ndo, " 11g"));
+ } else if (IS_CHAN_B(flags))
+ ND_PRINT((ndo, " 11b"));
+ if (flags & IEEE80211_CHAN_TURBO)
+ ND_PRINT((ndo, " Turbo"));
}
- if (IS_CHAN_ANYG(flags)) {
- if (flags & IEEE80211_CHAN_HALF)
- ND_PRINT((ndo, " 11g/10Mhz"));
- else if (flags & IEEE80211_CHAN_QUARTER)
- ND_PRINT((ndo, " 11g/5Mhz"));
- else
- ND_PRINT((ndo, " 11g"));
- } else if (IS_CHAN_B(flags))
- ND_PRINT((ndo, " 11b"));
- if (flags & IEEE80211_CHAN_TURBO)
- ND_PRINT((ndo, " Turbo"));
+ /*
+ * These apply to 11n.
+ */
if (flags & IEEE80211_CHAN_HT20)
ND_PRINT((ndo, " ht/20"));
else if (flags & IEEE80211_CHAN_HT40D)
uint16_t u16;
uint32_t u32;
uint64_t u64;
- } u, u2, u3, u4;
+ } u, u2, u3, u4, u5, u6;
+ uint8_t mcs_nss[4];
+ u_int i;
int rc;
switch (bit) {
break;
rc = cpack_uint8(s, &u3.u8);
break;
+ case IEEE80211_RADIOTAP_AMPDU_STATUS:
+ rc = cpack_uint32(s, &u.u32);
+ if (rc != 0)
+ break;
+ rc = cpack_uint16(s, &u2.u16);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u3.u8);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u4.u8);
+ break;
+ case IEEE80211_RADIOTAP_VHT:
+ rc = cpack_uint16(s, &u.u16);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u2.u8);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u3.u8);
+ if (rc != 0)
+ goto fail;
+ for (i = 0; i < 4; i++) {
+ rc = cpack_uint8(s, &mcs_nss[i]);
+ if (rc != 0)
+ goto fail;
+ }
+ rc = cpack_uint8(s, &u4.u8);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u5.u8);
+ if (rc != 0)
+ goto fail;
+ rc = cpack_uint16(s, &u6.u16);
+ fail:
+ break;
case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: {
uint8_t vns[3];
uint16_t length;
*/
if (presentflags & (1 << IEEE80211_RADIOTAP_XCHANNEL))
break;
- print_chaninfo(ndo, u.u16, u2.u16);
+ print_chaninfo(ndo, u.u16, u2.u16, presentflags);
break;
case IEEE80211_RADIOTAP_FHSS:
ND_PRINT((ndo, "fhset %d fhpat %d ", u.u16 & 0xff, (u.u16 >> 8) & 0xff));
/* Do nothing for now */
break;
case IEEE80211_RADIOTAP_XCHANNEL:
- print_chaninfo(ndo, u2.u16, u.u32);
+ print_chaninfo(ndo, u2.u16, u.u32, presentflags);
break;
case IEEE80211_RADIOTAP_MCS: {
- static const char *bandwidth[4] = {
+ static const char *ht_bandwidth[4] = {
"20 MHz",
"40 MHz",
"20 MHz (L)",
}
if (u.u8 & IEEE80211_RADIOTAP_MCS_BANDWIDTH_KNOWN) {
ND_PRINT((ndo, "%s ",
- bandwidth[u2.u8 & IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK]));
+ ht_bandwidth[u2.u8 & IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK]));
}
if (u.u8 & IEEE80211_RADIOTAP_MCS_GUARD_INTERVAL_KNOWN) {
ND_PRINT((ndo, "%s GI ",
(u2.u8 & IEEE80211_RADIOTAP_MCS_SHORT_GI) ?
- "short" : "lon"));
+ "short" : "long"));
}
if (u.u8 & IEEE80211_RADIOTAP_MCS_HT_FORMAT_KNOWN) {
ND_PRINT((ndo, "%s ",
(u2.u8 & IEEE80211_RADIOTAP_MCS_STBC_MASK) >> IEEE80211_RADIOTAP_MCS_STBC_SHIFT));
}
+ break;
+ }
+ case IEEE80211_RADIOTAP_AMPDU_STATUS:
+ break;
+ case IEEE80211_RADIOTAP_VHT: {
+ static const char *vht_bandwidth[32] = {
+ "20 MHz",
+ "40 MHz",
+ "20 MHz (L)",
+ "20 MHz (U)",
+ "80 MHz",
+ "80 MHz (L)",
+ "80 MHz (U)",
+ "80 MHz (LL)",
+ "80 MHz (LU)",
+ "80 MHz (UL)",
+ "80 MHz (UU)",
+ "160 MHz",
+ "160 MHz (L)",
+ "160 MHz (U)",
+ "160 MHz (LL)",
+ "160 MHz (LU)",
+ "160 MHz (UL)",
+ "160 MHz (UU)",
+ "160 MHz (LLL)",
+ "160 MHz (LLU)",
+ "160 MHz (LUL)",
+ "160 MHz (UUU)",
+ "160 MHz (ULL)",
+ "160 MHz (ULU)",
+ "160 MHz (UUL)",
+ "160 MHz (UUU)",
+ "unknown (26)",
+ "unknown (27)",
+ "unknown (28)",
+ "unknown (29)",
+ "unknown (30)",
+ "unknown (31)"
+ };
+
+ for (i = 0; i < 4; i++) {
+ u_int nss, mcs;
+ nss = mcs_nss[i] & IEEE80211_RADIOTAP_VHT_NSS_MASK;
+ mcs = (mcs_nss[i] & IEEE80211_RADIOTAP_VHT_MCS_MASK) >> IEEE80211_RADIOTAP_VHT_MCS_SHIFT;
+
+ if (nss == 0)
+ continue;
+
+ ND_PRINT((ndo, "User %u MCS %u ", i, mcs));
+ ND_PRINT((ndo, "%s FEC ",
+ (u4.u8 & (IEEE80211_RADIOTAP_CODING_LDPC_USERn << i)) ?
+ "LDPC" : "BCC"));
+ }
+ if (u.u16 & IEEE80211_RADIOTAP_VHT_BANDWIDTH_KNOWN) {
+ ND_PRINT((ndo, "%s ",
+ vht_bandwidth[u3.u8 & IEEE80211_RADIOTAP_VHT_BANDWIDTH_MASK]));
+ }
+ if (u.u16 & IEEE80211_RADIOTAP_VHT_GUARD_INTERVAL_KNOWN) {
+ ND_PRINT((ndo, "%s GI ",
+ (u2.u8 & IEEE80211_RADIOTAP_VHT_SHORT_GI) ?
+ "short" : "long"));
+ }
break;
}
}
projects / tcpdump / blobdiff