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/*
* Test with unused address twice in parallel
* This runs the ACD engine with an unused address on a veth pair, but it runs
* it on both ends. We expect the PROBE to fail on at least one of the devices.
*/
#include <stdlib.h>
#include "test.h"
static void test_unused(int ifindex1, uint8_t *mac1, size_t n_mac1, int ifindex2, uint8_t *mac2, size_t n_mac2) {
NAcdConfig config1 = {
.ifindex = ifindex1,
.mac = mac1,
.n_mac = n_mac1,
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
.timeout_msec = 100,
};
NAcdConfig config2 = {
.ifindex = ifindex2,
.mac = mac2,
.n_mac = n_mac2,
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
.timeout_msec = 100,
};
struct pollfd pfds[2];
NAcd *acd1, *acd2;
int r, fd1, fd2, state1, state2;
r = n_acd_new(&acd1);
assert(!r);
r = n_acd_new(&acd2);
assert(!r);
n_acd_get_fd(acd1, &fd1);
n_acd_get_fd(acd2, &fd2);
r = n_acd_start(acd1, &config1);
assert(!r);
r = n_acd_start(acd2, &config2);
assert(!r);
for (state1 = state2 = -1; state1 == -1 || state2 == -1; ) {
NAcdEvent *event;
pfds[0] = (struct pollfd){ .fd = fd1, .events = (state1 == -1) ? POLLIN : 0 };
pfds[1] = (struct pollfd){ .fd = fd2, .events = (state2 == -1) ? POLLIN : 0 };
r = poll(pfds, sizeof(pfds) / sizeof(*pfds), -1);
assert(r >= 0);
if (state1 == -1) {
r = n_acd_dispatch(acd1);
assert(!r);
r = n_acd_pop_event(acd1, &event);
if (!r) {
assert(event->event == N_ACD_EVENT_READY || event->event == N_ACD_EVENT_USED);
state1 = !!(event->event == N_ACD_EVENT_READY);
} else {
assert(r == N_ACD_E_DONE);
}
}
if (state2 == -1) {
r = n_acd_dispatch(acd2);
assert(!r);
r = n_acd_pop_event(acd2, &event);
if (!r) {
assert(event->event == N_ACD_EVENT_READY || event->event == N_ACD_EVENT_USED);
state2 = !!(event->event == N_ACD_EVENT_READY);
} else {
assert(r == N_ACD_E_DONE);
}
}
}
n_acd_free(acd1);
n_acd_free(acd2);
assert(!state1 || !state2);
}
int main(int argc, char **argv) {
struct ether_addr mac1, mac2;
int r, ifindex1, ifindex2;
r = test_setup();
if (r)
return r;
test_veth_new(&ifindex1, &mac1, &ifindex2, &mac2);
test_unused(ifindex1, mac1.ether_addr_octet, sizeof(mac2.ether_addr_octet), ifindex2, mac2.ether_addr_octet, sizeof(mac2.ether_addr_octet));
return 0;
}
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