- /* Save state rate */
- state->rate = u.u8;
- break;
- case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
- case IEEE80211_RADIOTAP_DB_ANTNOISE:
- case IEEE80211_RADIOTAP_ANTENNA:
- rc = cpack_uint8(s, &u.u8);
- break;
- case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
- case IEEE80211_RADIOTAP_DBM_ANTNOISE:
- rc = cpack_int8(s, &u.i8);
- break;
- case IEEE80211_RADIOTAP_CHANNEL:
- rc = cpack_uint16(s, &u.u16);
- if (rc != 0)
- break;
- rc = cpack_uint16(s, &u2.u16);
- break;
- case IEEE80211_RADIOTAP_FHSS:
- case IEEE80211_RADIOTAP_LOCK_QUALITY:
- case IEEE80211_RADIOTAP_TX_ATTENUATION:
- case IEEE80211_RADIOTAP_RX_FLAGS:
- rc = cpack_uint16(s, &u.u16);
- break;
- case IEEE80211_RADIOTAP_DB_TX_ATTENUATION:
- rc = cpack_uint8(s, &u.u8);
- break;
- case IEEE80211_RADIOTAP_DBM_TX_POWER:
- rc = cpack_int8(s, &u.i8);
- break;
- case IEEE80211_RADIOTAP_TSFT:
- rc = cpack_uint64(s, &u.u64);
- break;
- case IEEE80211_RADIOTAP_XCHANNEL:
- 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_MCS:
- rc = cpack_uint8(s, &u.u8);
- if (rc != 0)
- break;
- rc = cpack_uint8(s, &u2.u8);
- if (rc != 0)
- break;
- rc = cpack_uint8(s, &u3.u8);
- break;
- case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: {
- uint8_t vns[3];
- uint16_t length;
- uint8_t subspace;
+/* Name Data type Units
+ * ---- --------- -----
+ *
+ * IEEE80211_RADIOTAP_TSFT uint64_t microseconds
+ *
+ * Value in microseconds of the MAC's 64-bit 802.11 Time
+ * Synchronization Function timer when the first bit of the
+ * MPDU arrived at the MAC. For received frames, only.
+ *
+ * IEEE80211_RADIOTAP_CHANNEL 2 x uint16_t MHz, bitmap
+ *
+ * Tx/Rx frequency in MHz, followed by flags (see below).
+ * Note that IEEE80211_RADIOTAP_XCHANNEL must be used to
+ * represent an HT channel as there is not enough room in
+ * the flags word.
+ *
+ * IEEE80211_RADIOTAP_FHSS uint16_t see below
+ *
+ * For frequency-hopping radios, the hop set (first byte)
+ * and pattern (second byte).
+ *
+ * IEEE80211_RADIOTAP_RATE uint8_t 500kb/s or index
+ *
+ * Tx/Rx data rate. If bit 0x80 is set then it represents an
+ * an MCS index and not an IEEE rate.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTSIGNAL int8_t decibels from
+ * one milliwatt (dBm)
+ *
+ * RF signal power at the antenna, decibel difference from
+ * one milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTNOISE int8_t decibels from
+ * one milliwatt (dBm)
+ *
+ * RF noise power at the antenna, decibel difference from one
+ * milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTSIGNAL uint8_t decibel (dB)
+ *
+ * RF signal power at the antenna, decibel difference from an
+ * arbitrary, fixed reference.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTNOISE uint8_t decibel (dB)
+ *
+ * RF noise power at the antenna, decibel difference from an
+ * arbitrary, fixed reference point.
+ *
+ * IEEE80211_RADIOTAP_LOCK_QUALITY uint16_t unitless
+ *
+ * Quality of Barker code lock. Unitless. Monotonically
+ * nondecreasing with "better" lock strength. Called "Signal
+ * Quality" in datasheets. (Is there a standard way to measure
+ * this?)
+ *
+ * IEEE80211_RADIOTAP_TX_ATTENUATION uint16_t unitless
+ *
+ * Transmit power expressed as unitless distance from max
+ * power set at factory calibration. 0 is max power.
+ * Monotonically nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION uint16_t decibels (dB)
+ *
+ * Transmit power expressed as decibel distance from max power
+ * set at factory calibration. 0 is max power. Monotonically
+ * nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DBM_TX_POWER int8_t decibels from
+ * one milliwatt (dBm)
+ *
+ * Transmit power expressed as dBm (decibels from a 1 milliwatt
+ * reference). This is the absolute power level measured at
+ * the antenna port.
+ *
+ * IEEE80211_RADIOTAP_FLAGS uint8_t bitmap
+ *
+ * Properties of transmitted and received frames. See flags
+ * defined below.
+ *
+ * IEEE80211_RADIOTAP_ANTENNA uint8_t antenna index
+ *
+ * Unitless indication of the Rx/Tx antenna for this packet.
+ * The first antenna is antenna 0.
+ *
+ * IEEE80211_RADIOTAP_RX_FLAGS uint16_t bitmap
+ *
+ * Properties of received frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_XCHANNEL uint32_t bitmap
+ * uint16_t MHz
+ * uint8_t channel number
+ * uint8_t .5 dBm
+ *
+ * Extended channel specification: flags (see below) followed by
+ * frequency in MHz, the corresponding IEEE channel number, and
+ * finally the maximum regulatory transmit power cap in .5 dBm
+ * units. This property supersedes IEEE80211_RADIOTAP_CHANNEL
+ * and only one of the two should be present.
+ *
+ * IEEE80211_RADIOTAP_MCS uint8_t known
+ * uint8_t flags
+ * uint8_t mcs
+ *
+ * Bitset indicating which fields have known values, followed
+ * 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
+ * uint16_t length
+ *
+ * The Vendor Namespace Field contains three sub-fields. The first
+ * sub-field is 3 bytes long. It contains the vendor's IEEE 802
+ * Organizationally Unique Identifier (OUI). The fourth byte is a
+ * vendor-specific "namespace selector."
+ *
+ */
+enum ieee80211_radiotap_type {
+ IEEE80211_RADIOTAP_TSFT = 0,
+ IEEE80211_RADIOTAP_FLAGS = 1,
+ IEEE80211_RADIOTAP_RATE = 2,
+ IEEE80211_RADIOTAP_CHANNEL = 3,
+ IEEE80211_RADIOTAP_FHSS = 4,
+ IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
+ IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
+ IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
+ IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
+ IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
+ IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
+ IEEE80211_RADIOTAP_ANTENNA = 11,
+ IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
+ IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
+ IEEE80211_RADIOTAP_RX_FLAGS = 14,
+ /* 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
+};
projects / tcpdump / blobdiff