3rd-party/libtins
1
0
Fork 0
mirror of https://github.com/mfontanini/libtins synced 2026-01-26 20:01:35 +01:00
Code Issues Releases Wiki Activity

Add extract_metadata to main PDU classes

Browse Source
This commit is contained in:
Matias Fontanini
2016-02-20 22:19:12 -08:00
parent dae25b3381
commit 17da10d76e
32 changed files with 318 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/eapol.cpp
View File

@@ -46,6 +46,15 @@ using Tins::Memory::OutputMemoryStream;
namespace Tins {
PDU::metadata EAPOL::extract_metadata(const uint8_t *buffer, uint32_t total_sz) {
if (TINS_UNLIKELY(total_sz < sizeof(eapol_header))) {
throw malformed_packet();
}
const eapol_header* header = (const eapol_header*)buffer;
uint32_t advertised_size = Endian::be_to_host<uint16_t>(header->length) + 4;
return metadata(min(total_sz, advertised_size), pdu_flag, PDU::UNKNOWN);
}
EAPOL::EAPOL(uint8_t packet_type, EAPOLTYPE type)
: header_() {
header_.version = 1;
@@ -59,7 +68,7 @@ EAPOL::EAPOL(const uint8_t* buffer, uint32_t total_sz) {
}
EAPOL* EAPOL::from_bytes(const uint8_t* buffer, uint32_t total_sz) {
if (total_sz < sizeof(eapol_header)) {
if (TINS_UNLIKELY(total_sz < sizeof(eapol_header))) {
throw malformed_packet();
}
const eapol_header* ptr = (const eapol_header*)buffer;