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Code Issues Releases Wiki Activity

Added IPv4Reassembler class.

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This commit is contained in:
Matias Fontanini
2013-11-17 15:32:24 -03:00
parent a6655191d4
commit 6355aff3cd
9 changed files with 2400 additions and 84 deletions
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8
src/ip.cpp
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@@ -118,7 +118,7 @@ IP::IP(const uint8_t *buffer, uint32_t total_sz)
total_sz -= head_len() * sizeof(uint32_t);
if (total_sz) {
// Don't try to decode it if it's fragmented
if(frag_off() == 0 || frag_off() == 0x4000) {
if(!is_fragmented()) {
inner_pdu(
Internals::pdu_from_flag(
static_cast<Constants::IP::e>(_ip.protocol),
@@ -155,6 +155,12 @@ void IP::init_ip_fields() {
_padded_options_size = 0;
}
bool IP::is_fragmented() const {
// It's 0 if offset == 0 && more_frag == 0
// It's 0x4000 if dont_fragment = 1
return frag_off() != 0 && frag_off() != 0x4000;
}
/* Setters */
void IP::tos(uint8_t new_tos) {