1 files changed, 60 insertions, 0 deletions

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+#include <stdint.h>
+#include <sys/types.h>
+
+#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
+#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
+
+static const uint8_t radiotap_data[] = {
+    0x00,
+    0x00, // <-- radiotap version (ignore this)
+    0x18,
+    0x00, // <-- number of bytes in our header (count the number of "0x"s)
+
+    /**
+     * The next field is a bitmap of which options we are including.
+     * The full list of which field is which option is in ieee80211_radiotap.h,
+     * but I've chosen to include:
+     *   0x00 0x01: timestamp
+     *   0x00 0x02: flags
+     *   0x00 0x03: rate
+     *   0x00 0x04: channel
+     *   0x80 0x00: tx flags (seems silly to have this AND flags, but oh well)
+     */
+    0x0f,
+    0x80,
+    0x00,
+    0x00,
+
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00, // <-- timestamp
+
+    /**
+     * This is the first set of flags, and we've set the bit corresponding to
+     * IEEE80211_RADIOTAP_F_FCS, meaning we want the card to add a FCS at the
+     * end of our buffer for us.
+     */
+    0x10,
+
+    0x00, // <-- rate
+    0x00,
+    0x00,
+    0x00,
+    0x00, // <-- channel
+
+    /**
+     * This is the second set of flags, specifically related to transmissions.
+     * The bit we've set is IEEE80211_RADIOTAP_F_TX_NOACK, which means the card
+     * won't wait for an ACK for this frame, and that it won't retry if it
+     * doesn't get one.
+     */
+    0x08,
+    0x00,
+};
+
+void hexdump(void *data, size_t size);