int main(int argc, char **argv)
{
mesh_t meshA = mesh_new(3);
fail_unless(meshA);
lob_t secretsA = mesh_generate(meshA);
fail_unless(secretsA);
mesh_t meshB = mesh_new(3);
fail_unless(meshB);
lob_t secretsB = mesh_generate(meshB);
fail_unless(secretsB);
net_loopback_t pair = net_loopback_new(meshA,meshB);
fail_unless(pair);
link_t linkAB = link_get(meshA, meshB->id->hashname);
link_t linkBA = link_get(meshB, meshA->id->hashname);
fail_unless(linkAB);
fail_unless(linkBA);
fail_unless(link_sync(linkAB));
fail_unless(link_ready(linkAB));
fail_unless(link_ready(linkBA));
return 0;
}
void recv_data(int len) {
static i32 i;
static u32 buffer[4];
const __builtin_quad *b = (__builtin_quad *)buffer;
i32 tout;
while (len >= 4) {
tout = 0x1000;
buffer[i] =
(u32)(RECEIVE_NETWORK_B() & 0xFF) << 24 |
(u32)(RECEIVE_NETWORK_B() & 0xFF) << 16 |
(u32)(RECEIVE_NETWORK_B() & 0xFF) << 8 |
(u32)(RECEIVE_NETWORK_B() & 0xFF);
i = (i + 1) % 4;
if (i == 0) {
while (!link_ready() && --tout) {
asm("nop;nop;nop;nop;;");
}
if (tout) {
link_send(b);
}
}
if (tout) {
len -= 4;
}
else {
len = 0;
}
}
}
// process an incoming handshake
link_t link_handshake(link_t link, lob_t inner, lob_t outer, pipe_t pipe)
{
link_t ready;
uint32_t out;
if(!link || !inner || !outer) return LOG("bad args");
if(!link->key && link_key(link->mesh,inner) != link) return LOG("invalid/mismatch handshake key");
out = exchange3_out(link->x,0);
ready = link_ready(link);
// if bad at, always send current handshake
if(exchange3_in(link->x, lob_get_int(inner,"at")) < out)
{
LOG("old/bad at: %s (%d,%d,%d)",lob_json(inner),lob_get_int(inner,"at"),exchange3_in(link->x,0),exchange3_out(link->x,0));
if(pipe) pipe->send(pipe,exchange3_handshake(link->x),link);
return NULL;
}
// trust/add this pipe
if(pipe) link_pipe(link,pipe);
// try to sync ephemeral key
if(!exchange3_sync(link->x,outer)) return LOG("sync failed");
// we may need to re-sync
if(out != exchange3_out(link->x,0)) link_sync(link);
// notify of ready state change
if(!ready && link_ready(link))
{
LOG("link ready");
mesh_link(link->mesh, link);
}
return link;
}
