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tcp: validate reset if in sequence window

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Matheus
2024-06-16 12:49:59 -03:00
parent 68624ad31b
commit 82480a5583
1 changed files with 1 additions and 2 deletions
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kernel-src/io/net/tcp.c
+1 -2
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@@ -906,8 +906,7 @@ __attribute__((noreturn)) static void tcp_worker() {
continue;
}
// TODO validade reset if in sequence window (rfc 793 page 37)
if (tcpheader->seq == tcb->rcvnext && (tcpheader->control & CONTROL_RST) && tcb->state != TCB_STATE_LISTEN) {
if (seqinrange(tcpheader->seq, tcpheader->seq + 1, tcb->rcvnext, tcb->rcvnext + tcb->rcvwindow) && (tcpheader->control & CONTROL_RST) && tcb->state != TCB_STATE_LISTEN) {
tcp_reset(tcb);
MUTEX_RELEASE(&tcb->mutex);
TCB_RELEASE(tcb);