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Merged
tinic merged 1 commit into from
Sep 26, 2026
Merged

tests/netstack: host gates for the #38 multicast fan-out, both topologies #69

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89 changes: 89 additions & 0 deletions tests/netstack/CMakeLists.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -166,6 +166,95 @@ if(NOT CMAKE_CROSSCOMPILING)

add_test(NAME bcast_loopback COMMAND test_bcast_loopback)

# A multicast datagram this host sends to a group two SO_REUSEPORT sockets
# share must loop back and fan out to both (#38 x #47). Same real send and
# loopback path as test_bcast_loopback, plus _nx_ip_packet_receive so the
# deferred receive stamps nx_packet_ip_version/header exactly as the guest's
# IP thread does -- the metadata the fan-out's is_multicast test reads.
set(mcast_share_sources
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_driver_packet_send.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_packet_send.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_header_add.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_route_find.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_checksum_compute.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_packet_checksum_compute.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_packet_receive.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ipv4_packet_receive.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ipv4_option_process.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_ip_dispatch_process.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_icmpv4_send_error_message.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_igmp_multicast_check.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_pool_initialize.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_enable.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_socket_create.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_socket_bind.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_bind_cleanup.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_free_port_find.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_socket_send.c"
"${AMINETXDUO_NETXDUO}/common/src/nxd_udp_socket_send.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_packet_receive.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_socket_receive.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_udp_receive_cleanup.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_pool_create.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_pool_cleanup.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_allocate.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_copy.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_data_append.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_length_get.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_release.c"
"${AMINETXDUO_NETXDUO}/common/src/nx_packet_transmit_release.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_packet_pool_create.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_packet_allocate.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_packet_data_append.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_packet_length_get.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_packet_release.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_udp_enable.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_udp_socket_create.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_udp_socket_bind.c"
"${AMINETXDUO_NETXDUO}/common/src/nxd_udp_source_extract.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_udp_socket_send.c"
"${AMINETXDUO_NETXDUO}/common/src/nxe_udp_socket_receive.c")

add_executable(test_mcast_share_loopback
host/test_mcast_share_loopback_host.c
${mcast_share_sources})

# The guest's exact #38 topology: the sender is itself the port-list
# primary (binds first), the co-bound second socket is the sibling.
add_executable(test_mcast_share_2sock
host/test_mcast_share_2sock_host.c
${mcast_share_sources})

target_compile_options(test_mcast_share_loopback PRIVATE -UAMINETXDUO_IPV6)

target_include_directories(test_mcast_share_loopback PRIVATE
"${CMAKE_SOURCE_DIR}/tests/perf/host/shim" # tx_port.h, first
"${AMINETXDUO_NETXDUO}/ports/linux/gnu/inc" # nx_port.h
"${CMAKE_SOURCE_DIR}/port/netxduo-amiga/inc" # nx_user.h, ours
"${AMINETXDUO_NETXDUO}/common/inc"
"${AMINETXDUO_THREADX}/common/inc")

target_compile_definitions(test_mcast_share_loopback PRIVATE
NX_INCLUDE_USER_DEFINE_FILE
AMINETXDUO_HOST_VENDORED_TX_PORT="${AMINETXDUO_THREADX}/ports/linux/gnu/inc/tx_port.h")

add_test(NAME mcast_share_loopback COMMAND test_mcast_share_loopback)

target_compile_options(test_mcast_share_2sock PRIVATE -UAMINETXDUO_IPV6)

target_include_directories(test_mcast_share_2sock PRIVATE
"${CMAKE_SOURCE_DIR}/tests/perf/host/shim" # tx_port.h, first
"${AMINETXDUO_NETXDUO}/ports/linux/gnu/inc" # nx_port.h
"${CMAKE_SOURCE_DIR}/port/netxduo-amiga/inc" # nx_user.h, ours
"${AMINETXDUO_NETXDUO}/common/inc"
"${AMINETXDUO_THREADX}/common/inc")

target_compile_definitions(test_mcast_share_2sock PRIVATE
NX_INCLUDE_USER_DEFINE_FILE
AMINETXDUO_HOST_VENDORED_TX_PORT="${AMINETXDUO_THREADX}/ports/linux/gnu/inc/tx_port.h")

add_test(NAME mcast_share_2sock COMMAND test_mcast_share_2sock)

# Whether a TCP connect leaves from the source it was named, on a machine
# with two interfaces on one subnet, the topology the lab guest cannot
# boot, built here out of two filled-in nx_ip_interface[] entries. Links
Expand Down
251 changes: 251 additions & 0 deletions tests/netstack/host/test_mcast_share_2sock_host.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,251 @@
/*
* AmiNetXDuo, multicast loopback fan-out with the sender as the port-list
* primary (#38 x #47), the topology t_test_udp_reuseport actually drives on
* the guest: two SO_REUSEPORT sockets share 0.0.0.0:5353, A binds first (so A
* is the primary), A sends a datagram to the group, and B -- the sibling --
* must still receive the fan-out clone. The existing
* test_mcast_share_loopback_host.c has a responder socket bound first, so the
* sender there is a sibling, not the primary; this closes the gap.
*
* SPDX-License-Identifier: MIT
*/

#include "nx_api.h"
#include "nx_ip.h"
#include "nx_udp.h"
#include "nx_packet.h"

#include <stdio.h>
#include <string.h>

static unsigned long h_checks;
static unsigned long h_failures;

static void h_check(int ok, const char *what)
{
h_checks++;

if (!ok)
{
h_failures++;
printf("FAIL %s\n", what);
}
}

#define H_OUR_IP IP_ADDRESS(10, 0, 0, 17)
#define H_NETMASK IP_ADDRESS(255, 255, 255, 0)
#define H_GROUP IP_ADDRESS(224, 0, 0, 251)
#define H_PORT 5353
#define H_PAYLOAD "m"

static NX_IP h_ip;
static NX_PACKET_POOL h_pool;
static NX_UDP_SOCKET h_a; /* the sender, bound first */
static NX_UDP_SOCKET h_b; /* the co-bound sibling */

static UINT h_a_cb; /* sender callback invocations */
static UINT h_b_cb; /* sibling callback invocations */

static VOID h_a_receive(NX_UDP_SOCKET *sock)
{
(VOID)sock;
h_a_cb++;
}

static VOID h_b_receive(NX_UDP_SOCKET *sock)
{
(VOID)sock;
h_b_cb++;
}

/* 1568 is AMI_POOL_PAYLOAD (include/aminetxduo/netstack.h). */
#define H_POOL_PAYLOAD 1568
#define H_POOL_PACKETS 64
static ULONG h_pool_memory[((H_POOL_PAYLOAD + sizeof(NX_PACKET) + 32) *
H_POOL_PACKETS) / sizeof(ULONG)];

static UINT h_wire_sends;

static TX_THREAD h_caller_thread;

TX_THREAD *_tx_thread_current_ptr = &h_caller_thread;
TX_THREAD _tx_timer_thread;
UINT _tx_thread_preempt_disable;
volatile ULONG _tx_thread_system_state;

UINT _tx_thread_interrupt_disable(VOID) { return 0; }
VOID _tx_thread_interrupt_restore(UINT previous_posture) { NX_PARAMETER_NOT_USED(previous_posture); }
UINT _tx_thread_sleep(ULONG timer_ticks) { NX_PARAMETER_NOT_USED(timer_ticks); return TX_SUCCESS; }
TX_THREAD *_tx_thread_identify(VOID) { return _tx_thread_current_ptr; }
UINT _tx_mutex_get(TX_MUTEX *mutex_ptr, ULONG wait_option)
{ NX_PARAMETER_NOT_USED(mutex_ptr); NX_PARAMETER_NOT_USED(wait_option); return TX_SUCCESS; }
UINT _tx_mutex_put(TX_MUTEX *mutex_ptr) { NX_PARAMETER_NOT_USED(mutex_ptr); return TX_SUCCESS; }
UINT _tx_mutex_create(TX_MUTEX *mutex_ptr, CHAR *name, UINT inherit)
{ NX_PARAMETER_NOT_USED(mutex_ptr); NX_PARAMETER_NOT_USED(name); NX_PARAMETER_NOT_USED(inherit); return TX_SUCCESS; }
UINT _tx_mutex_delete(TX_MUTEX *mutex_ptr) { NX_PARAMETER_NOT_USED(mutex_ptr); return TX_SUCCESS; }
VOID _tx_thread_system_suspend(TX_THREAD *thread_ptr) { NX_PARAMETER_NOT_USED(thread_ptr); }
VOID _tx_thread_system_resume(TX_THREAD *thread_ptr) { NX_PARAMETER_NOT_USED(thread_ptr); }
VOID _tx_thread_system_preempt_check(VOID) { }
UINT _tx_thread_preemption_change(TX_THREAD *thread_ptr, UINT new_threshold, UINT *old_threshold)
{
NX_PARAMETER_NOT_USED(thread_ptr);
NX_PARAMETER_NOT_USED(new_threshold);
if (old_threshold) { *old_threshold = 0; }
return TX_SUCCESS;
}
UINT _tx_event_flags_set(TX_EVENT_FLAGS_GROUP *group_ptr, ULONG flags_to_set, UINT set_option)
{ NX_PARAMETER_NOT_USED(group_ptr); NX_PARAMETER_NOT_USED(flags_to_set); NX_PARAMETER_NOT_USED(set_option); return TX_SUCCESS; }
ULONG _tx_time_get(VOID) { return 0; }

static VOID h_driver(NX_IP_DRIVER *request)
{
switch (request -> nx_ip_driver_command)
{

case NX_LINK_PACKET_SEND:
case NX_LINK_PACKET_BROADCAST:
h_wire_sends++;
_nx_packet_transmit_release(request -> nx_ip_driver_packet);
break;

default:
break;
}

request -> nx_ip_driver_status = NX_SUCCESS;
}

VOID _nx_ip_packet_deferred_receive(NX_IP *ip_ptr, NX_PACKET *packet_ptr)
{
_nx_ip_packet_receive(ip_ptr, packet_ptr);
}

static VOID h_interface_setup(VOID)
{
NX_INTERFACE *if_ptr = &h_ip.nx_ip_interface[0];

if_ptr -> nx_interface_valid = NX_TRUE;
if_ptr -> nx_interface_name = "eth0";
if_ptr -> nx_interface_link_up = NX_TRUE;
if_ptr -> nx_interface_address_mapping_needed = NX_TRUE;
if_ptr -> nx_interface_ip_address = H_OUR_IP;
if_ptr -> nx_interface_ip_network_mask = H_NETMASK;
if_ptr -> nx_interface_ip_network = H_OUR_IP & H_NETMASK;
if_ptr -> nx_interface_ip_mtu_size = 1500;
if_ptr -> nx_interface_link_driver_entry = h_driver;
if_ptr -> nx_interface_physical_address_msw = 0x0000UL;
if_ptr -> nx_interface_physical_address_lsw = 0x00112233UL;

h_ip.nx_ipv4_multicast_entry[0].nx_ipv4_multicast_join_list = H_GROUP;
h_ip.nx_ipv4_multicast_entry[0].nx_ipv4_multicast_join_interface_list = if_ptr;
h_ip.nx_ipv4_multicast_entry[0].nx_ipv4_multicast_loopback_enable = NX_TRUE;
}

static UINT h_send_multicast(VOID)
{
NX_PACKET *packet_ptr;
UINT status;

status = nx_packet_allocate(&h_pool, &packet_ptr, NX_UDP_PACKET, NX_NO_WAIT);
if (status != NX_SUCCESS)
{
h_check(0, "packet_allocate");
return status;
}

status = nx_packet_data_append(packet_ptr, (VOID *)H_PAYLOAD,
sizeof(H_PAYLOAD) - 1, &h_pool, NX_NO_WAIT);
if (status != NX_SUCCESS)
{
h_check(0, "packet_data_append");
nx_packet_release(packet_ptr);
return status;
}

return nx_udp_socket_send(&h_a, packet_ptr, H_GROUP, H_PORT);
}

int main(void)
{
UINT status;
UINT n_a = 0, n_b = 0;
NX_PACKET *received;

printf("AmiNetXDuo multicast share loopback (2 sockets, sender primary)\n");

memset(&h_ip, 0, sizeof(h_ip));

status = nx_packet_pool_create(&h_pool, "host pool", H_POOL_PAYLOAD,
(VOID *)h_pool_memory,
sizeof(h_pool_memory));
h_check(status == NX_SUCCESS, "packet_pool_create");
if (status != NX_SUCCESS)
{
return 1;
}

h_ip.nx_ip_id = NX_IP_ID;
h_ip.nx_ip_default_packet_pool = &h_pool;
h_ip.nx_ip_address = H_OUR_IP;
h_ip.nx_ip_network_mask = H_NETMASK;
h_ip.nx_ip_driver_mtu = 1500;
h_ip.nx_ipv4_packet_receive = _nx_ipv4_packet_receive;

h_interface_setup();

status = nx_udp_enable(&h_ip);
h_check(status == NX_SUCCESS, "udp_enable");

status = nx_udp_socket_create(&h_ip, &h_a, "a", NX_IP_NORMAL,
NX_DONT_FRAGMENT, 0x80, 8);
h_check(status == NX_SUCCESS, "udp_socket_create a");

status = nx_udp_socket_create(&h_ip, &h_b, "b", NX_IP_NORMAL,
NX_DONT_FRAGMENT, 0x80, 8);
h_check(status == NX_SUCCESS, "udp_socket_create b");

h_a.nx_udp_socket_share = NX_TRUE;
h_b.nx_udp_socket_share = NX_TRUE;

h_a.nx_udp_receive_callback = h_a_receive;
h_b.nx_udp_receive_callback = h_b_receive;

/* A binds first, so A is the port-list primary -- exactly the guest. */
status = nx_udp_socket_bind(&h_a, H_PORT, NX_NO_WAIT);
h_check(status == NX_SUCCESS, "bind a 5353 (primary)");

status = nx_udp_socket_bind(&h_b, H_PORT, NX_NO_WAIT);
h_check(status == NX_SUCCESS, "bind b 5353 (co-bind)");

if (h_failures)
{
printf("setup failed\n");
return 1;
}

status = h_send_multicast();
h_check(status == NX_SUCCESS, "send multicast 224.0.0.251:5353");

while (nx_udp_socket_receive(&h_a, &received, NX_NO_WAIT) == NX_SUCCESS)
{
n_a++;
nx_packet_release(received);
}
while (nx_udp_socket_receive(&h_b, &received, NX_NO_WAIT) == NX_SUCCESS)
{
n_b++;
nx_packet_release(received);
}

printf("multicast: sender A %u (cb %u), sibling B %u (cb %u)\n",
n_a, h_a_cb, n_b, h_b_cb);
printf("wire sends: %u\n", h_wire_sends);

h_check(n_a == 1, "sender A received its own multicast (the primary copy)");
h_check(n_b == 1, "sibling B received the fan-out clone");
h_check(h_a_cb == 1, "sender A callback fired once");
h_check(h_b_cb == 1, "sibling B callback fired once");

printf("%lu checks, %lu failures\n", h_checks, h_failures);
return (h_failures == 0) ? 0 : 1;
}
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