gandc/zapret2
Template
1
0
Fork 0
mirror of https://github.com/bol-van/zapret2.git synced 2026-03-18 23:35:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

nfqws2: cancel reasm if server window size is smaller than expected reasm size

Browse Source
This commit is contained in:
bol-van
2025-12-12 20:18:55 +03:00
parent 4404127fa3
commit e828864811
2 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
docs/changes.txt
View File

@@ -94,3 +94,4 @@ v0.7
v0.7.1
* init.d: fix non-working incoming redirect
* nfqws2: cancel reasm if server window size is smaller than expected reasm size

9
nfq2/desync.c
View File

@@ -410,6 +410,15 @@ static bool reasm_start(t_ctrack *ctrack, t_reassemble *reasm, uint8_t proto, ui
static bool reasm_client_start(t_ctrack *ctrack, uint8_t proto, size_t sz, size_t szMax, const uint8_t *data_payload, size_t len_payload)
{
if (!ctrack) return false;
if (proto==IPPROTO_TCP && ctrack->pos.server.winsize_calc < szMax)
{
// this is rare but possible situation
// server gave us too small tcp window
// client will not send all pieces of reasm
// if we drop packets and wait for next pieces we will see nothing but retransmissions
DLOG("reasm cancelled because server window size %u is smaller than expected reasm size %u\n", ctrack->pos.server.winsize_calc, sz);
return false;
}
return reasm_start(ctrack, &ctrack->reasm_client, proto, (proto == IPPROTO_TCP) ? ctrack->pos.client.seq_last : 0, sz, szMax, data_payload, len_payload);
}
static bool reasm_feed(t_ctrack *ctrack, t_reassemble *reasm, uint8_t proto, uint32_t seq, const uint8_t *data_payload, size_t len_payload)