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Code Issues Releases Wiki Activity

Keep current flags as member in RadioTapParser

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This commit is contained in:
Matias Fontanini
2017-05-29 20:48:05 -07:00
parent e1571e19a8
commit 52be4b0e8a
3 changed files with 56 additions and 34 deletions
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8
src/radiotap.cpp
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@@ -98,19 +98,19 @@ RadioTap::RadioTap(const uint8_t* buffer, uint32_t total_sz) {
total_sz = input.size();
RadioTapParser parser(options_payload_);
if (parser.skip_to_field(FLAGS)) {
const uint8_t flags_value = parser.current_option().to<uint8_t>();
const uint8_t flags_value = *parser.current_option_ptr();
if ((flags_value & FCS) != 0) {
if (total_sz < sizeof(uint32_t)) {
if (TINS_UNLIKELY(total_sz < sizeof(uint32_t))) {
throw malformed_packet();
}
total_sz -= sizeof(uint32_t);
if ((flags_value & FAILED_FCS) !=0) {
if (TINS_UNLIKELY((flags_value & FAILED_FCS) != 0)) {
throw malformed_packet();
}
}
}
if (total_sz) {
if (TINS_LIKELY(total_sz)) {
inner_pdu(Dot11::from_bytes(input.pointer(), total_sz));
}
}