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 IP::fragment_offset and IP::flags

Browse Source
This commit is contained in:
Matias Fontanini
2015-12-07 21:10:41 -08:00
parent 35d5045db4
commit 3e23bcc73c
4 changed files with 103 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
src/ip_reassembler.cpp
View File

@@ -52,7 +52,7 @@ void IPv4Stream::add_fragment(IP *ip) {
return;
fragments.insert(it, IPv4Fragment(ip->inner_pdu(), offset));
received_size += ip->inner_pdu()->size();
if(!extract_more_frag(ip)) {
if(ip->flags() != IP::MORE_FRAGMENTS) {
total_size = offset + ip->inner_pdu()->size();
received_end = true;
}
@@ -83,12 +83,9 @@ PDU *IPv4Stream::allocate_pdu() const {
}
uint16_t IPv4Stream::extract_offset(const IP *ip) {
return (ip->frag_off() & 0x1fff) * 8;
return ip->fragment_offset() * 8;
}
bool IPv4Stream::extract_more_frag(const IP *ip) {
return (ip->frag_off() & 0x2000) != 0;
}
} // namespace Internals
IPv4Reassembler::IPv4Reassembler(overlapping_technique technique)