wt/mongoose
1
0
Fork 0
mirror of https://github.com/cesanta/mongoose.git synced 2026-10-01 05:52:32 +07:00
Code Issues Packages Projects Releases Wiki Activity

add tests for TCP RST handling

Browse Source
This commit is contained in:
Sergio R. Caprile
2026-04-02 15:43:14 -03:00
parent acb3f39e83
commit b48ea36192
2 changed files with 53 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
test/mip_test.c
+52 -3
View File
@@ -378,8 +378,8 @@ static void test_tcp_basics(bool ipv6) {
init_tcp_tests(&mgr, &e, &ipp, &driver, &mif, fn);
// https://datatracker.ietf.org/doc/html/rfc9293#section-3.5.2 Reset
// Generation non-used port. Group 1 in RFC send SYN, expect RST + ACK
// - https://datatracker.ietf.org/doc/html/rfc9293#section-3.5.2
// Reset generation, non-used port. Group 1 in RFC send SYN expect RST + ACK
create_tcp_seg(&e, &ipp, 1234, 4321, TH_SYN, 1, 69, 0, NULL, 0);
mg_mgr_poll(&mgr, 0); // make sure we clean former stuff in buffer
while (!received_response(&s_driver_data)) mg_mgr_poll(&mgr, 0);
@@ -469,7 +469,7 @@ static void test_tcp_basics(bool ipv6) {
ASSERT(t->flags == TH_RST);
ASSERT(t->seq == mg_htonl(4321));
// we currently don't validate checksum, no silently discarded segment test
// no silently discarded segment test
init_tcp_handshake(&e, &ipp, &mgr); // starts with seq_no=1000, ackno=2
@@ -681,6 +681,55 @@ static void test_tcp_basics(bool ipv6) {
s_driver_data.len = 0;
mg_mgr_free(&mgr);
// Test RST handling
// https://datatracker.ietf.org/doc/html/rfc9293#section-3.5.3
init_tcp_tests(&mgr, &e, &ipp, &driver, &mif, fn);
init_tcp_handshake(&e, &ipp, &mgr); // starts with seq_no=1000, ackno=2
// RST with seq_no way out of window
create_tcp_seg(&e, &ipp, 1000000, 2, TH_RST, 1, 80, 0, NULL, 0);
mg_mgr_poll(&mgr, 0);
ASSERT(!received_response(&s_driver_data));
// make sure it is NOT closed
ASSERT(mgr.conns->next != NULL); // two connections: listener + ours
{ // RST with seq_no within window but alien address
uint32_t ip4 = 0;
#if MG_ENABLE_IPV6 // forge source address
uint64_t ip6_0 = 0;
if (ipp.ip6 != NULL) {
ip6_0 = ip6.src[0];
ip6.src[0] = ip6.src[0] << 1;
} else
#endif
{
ip4 = ip.src;
ip.src = ip.src << 1;
}
create_tcp_seg(&e, &ipp, 1010, 2, TH_RST, 1, 80, 0, NULL, 0);
mg_mgr_poll(&mgr, 0);
ASSERT(!received_response(&s_driver_data));
// make sure it is NOT closed
ASSERT(mgr.conns->next != NULL); // two connections: listener + ours
#if MG_ENABLE_IPV6 // restore source address
if (ipp.ip6 != NULL) {
ip6.src[0] = ip6_0;
} else
#endif
{
ip.src = ip4;
}
}
// RST with seq_no within window
create_tcp_seg(&e, &ipp, 1010, 2, TH_RST, 1, 80, 0, NULL, 0);
mg_mgr_poll(&mgr, 0);
ASSERT(!received_response(&s_driver_data));
// make sure it is closed
ASSERT(mgr.conns->next == NULL); // only one connection: the listener
s_driver_data.len = 0;
mg_mgr_free(&mgr);
// Test responses to a connecting client
// https://datatracker.ietf.org/doc/html/rfc9293#section-3.5
// NOTE: Mongoose ignores any data until connection is actually established