static struct passive_context *
create_passive(struct ev_loop *loop, struct server_config *cfg)
{
struct passive_context *passive = NULL;
struct uinet_socket *listener = NULL;
struct ev_uinet_ctx *soctx = NULL;
struct uinet_in_addr addr;
int optlen, optval;
int error;
struct uinet_sockaddr_in sin;
if (uinet_inet_pton(UINET_AF_INET, cfg->listen_addr, &addr) <= 0) {
printf("Malformed address %s\n", cfg->listen_addr);
goto fail;
}
error = uinet_socreate(UINET_PF_INET, &listener, UINET_SOCK_STREAM, 0);
if (0 != error) {
printf("Listen socket creation failed (%d)\n", error);
goto fail;
}
soctx = ev_uinet_attach(listener);
if (NULL == soctx) {
printf("Failed to alloc libev socket context\n");
goto fail;
}
if ((error = uinet_make_socket_passive(listener))) {
printf("Failed to make listen socket passive (%d)\n", error);
goto fail;
}
if (cfg->interface->promisc) {
if ((error = uinet_make_socket_promiscuous(listener, cfg->interface->cdom))) {
printf("Failed to make listen socket promiscuous (%d)\n", error);
goto fail;
}
}
/*
* The following settings will be inherited by all sockets created
* by this listen socket.
*/
/*
* Need to be non-blocking to work with the event system.
*/
uinet_sosetnonblocking(listener, 1);
/* Wait 5 seconds for connections to complete */
optlen = sizeof(optval);
optval = 5;
if ((error = uinet_sosetsockopt(listener, UINET_IPPROTO_TCP, UINET_TCP_KEEPINIT, &optval, optlen)))
goto fail;
/* Begin counting down to close after 10 seconds of idle */
optlen = sizeof(optval);
optval = 10;
if ((error = uinet_sosetsockopt(listener, UINET_IPPROTO_TCP, UINET_TCP_KEEPIDLE, &optval, optlen)))
goto fail;
/* Count down to close once per second */
optlen = sizeof(optval);
optval = 1;
if ((error = uinet_sosetsockopt(listener, UINET_IPPROTO_TCP, UINET_TCP_KEEPINTVL, &optval, optlen)))
goto fail;
/* Close after idle for 3 counts */
optlen = sizeof(optval);
optval = 3;
if ((error = uinet_sosetsockopt(listener, UINET_IPPROTO_TCP, UINET_TCP_KEEPCNT, &optval, optlen)))
goto fail;
/* Wait 100 milliseconds for missing TCP segments */
optlen = sizeof(optval);
optval = 100;
if ((error = uinet_sosetsockopt(listener, UINET_IPPROTO_TCP, UINET_TCP_REASSDL, &optval, optlen)))
goto fail;
passive = calloc(1, sizeof(struct passive_context));
if (NULL == passive) {
goto fail;
}
passive->loop = loop;
passive->listener = listener;
passive->verbose = cfg->verbose;
passive->interface = cfg->interface;
passive->extract = cfg->extract;
memcpy(passive->content_types, cfg->content_types, sizeof(passive->content_types));
memset(&sin, 0, sizeof(struct uinet_sockaddr_in));
sin.sin_len = sizeof(struct uinet_sockaddr_in);
sin.sin_family = UINET_AF_INET;
sin.sin_addr = addr;
sin.sin_port = htons(cfg->listen_port);
error = uinet_sobind(listener, (struct uinet_sockaddr *)&sin);
if (0 != error) {
printf("bind failed\n");
goto fail;
}
error = uinet_solisten(passive->listener, -1);
if (0 != error)
goto fail;
if (passive->verbose) {
char buf[32];
printf("Listening on %s:%u\n", uinet_inet_ntoa(addr, buf, sizeof(buf)), cfg->listen_port);
}
ev_init(&passive->listen_watcher, accept_cb);
ev_uinet_set(&passive->listen_watcher, soctx, EV_READ);
passive->listen_watcher.data = passive;
ev_uinet_start(loop, &passive->listen_watcher);
return (passive);
fail:
if (soctx) ev_uinet_detach(soctx);
if (listener) uinet_soclose(listener);
if (passive) free(passive);
return (NULL);
}
static int
passive_start(struct uinet_demo_config *cfg, uinet_instance_t uinst, struct ev_loop *loop)
{
struct uinet_demo_passive *passive = (struct uinet_demo_passive *)cfg;
struct uinet_socket *listen_socket = NULL;
struct ev_uinet_ctx *soctx = NULL;
struct uinet_in_addr addr;
int optlen, optval;
int error;
struct uinet_sockaddr_in sin;
if (uinet_inet_pton(UINET_AF_INET, passive->listen_addr, &addr) <= 0) {
printf("%s: Malformed address %s\n", passive->cfg.name, passive->listen_addr);
error = UINET_EINVAL;
goto fail;
}
error = uinet_socreate(passive->cfg.uinst, UINET_PF_INET, &listen_socket, UINET_SOCK_STREAM, 0);
if (0 != error) {
printf("%s: Listen socket creation failed (%d)\n", passive->cfg.name, error);
goto fail;
}
soctx = ev_uinet_attach(listen_socket);
if (NULL == soctx) {
printf("%s: Failed to alloc libev socket context\n", passive->cfg.name);
error = UINET_ENOMEM;
goto fail;
}
if ((error = uinet_make_socket_passive(listen_socket))) {
printf("%s: Failed to make listen socket passive (%d)\n", passive->cfg.name, error);
goto fail;
}
if (passive->promisc) {
if ((error = uinet_make_socket_promiscuous(listen_socket, NULL))) {
printf("%s: Failed to make listen socket promiscuous (%d)\n", passive->cfg.name, error);
goto fail;
}
}
/*
* The following settings will be inherited by all sockets created
* by this listen socket.
*/
/*
* Need to be non-blocking to work with the event system.
*/
uinet_sosetnonblocking(listen_socket, 1);
/* Wait 5 seconds for connections to complete */
optlen = sizeof(optval);
optval = 5;
if ((error = uinet_sosetsockopt(listen_socket, UINET_IPPROTO_TCP, UINET_TCP_KEEPINIT, &optval, optlen))) {
printf("%s: Failed to set TCP_KEEPINIT (%d)\n", passive->cfg.name, error);
goto fail;
}
/* Begin counting down to close after 10 seconds of idle */
optlen = sizeof(optval);
optval = 10;
if ((error = uinet_sosetsockopt(listen_socket, UINET_IPPROTO_TCP, UINET_TCP_KEEPIDLE, &optval, optlen))) {
printf("%s: Failed to set TCP_KEEPIDLE (%d)\n", passive->cfg.name, error);
goto fail;
}
/* Count down to close once per second */
optlen = sizeof(optval);
optval = 1;
if ((error = uinet_sosetsockopt(listen_socket, UINET_IPPROTO_TCP, UINET_TCP_KEEPINTVL, &optval, optlen))) {
printf("%s: Failed to set TCP_KEEPINTVL (%d)\n", passive->cfg.name, error);
goto fail;
}
/* Close after idle for 3 counts */
optlen = sizeof(optval);
optval = 3;
if ((error = uinet_sosetsockopt(listen_socket, UINET_IPPROTO_TCP, UINET_TCP_KEEPCNT, &optval, optlen))) {
printf("%s: Failed to set TCP_KEEPCNT (%d)\n", passive->cfg.name, error);
goto fail;
}
/* Wait 100 milliseconds for missing TCP segments */
optlen = sizeof(optval);
optval = 100;
if ((error = uinet_sosetsockopt(listen_socket, UINET_IPPROTO_TCP, UINET_TCP_REASSDL, &optval, optlen))) {
printf("%s: Failed to set TCP_REASSDL (%d)\n", passive->cfg.name, error);
goto fail;
}
passive->listen_socket = listen_socket;
memset(&sin, 0, sizeof(struct uinet_sockaddr_in));
sin.sin_len = sizeof(struct uinet_sockaddr_in);
sin.sin_family = UINET_AF_INET;
sin.sin_addr = addr;
sin.sin_port = htons(passive->listen_port);
error = uinet_sobind(listen_socket, (struct uinet_sockaddr *)&sin);
if (0 != error) {
printf("%s: Bind to %s:%u failed\n", passive->cfg.name,
passive->listen_addr, passive->listen_port);
goto fail;
}
error = uinet_solisten(passive->listen_socket, -1);
if (0 != error) {
printf("%s: Listen on %s:%u failed\n", passive->cfg.name,
passive->listen_addr, passive->listen_port);
goto fail;
}
if (passive->cfg.verbose)
printf("%s: Listening on %s:%u\n", passive->cfg.name,
passive->listen_addr, passive->listen_port);
ev_init(&passive->listen_watcher, passive_accept_cb);
ev_uinet_set(&passive->listen_watcher, soctx, EV_READ);
passive->listen_watcher.data = passive;
ev_uinet_start(loop, &passive->listen_watcher);
return (0);
fail:
if (soctx) ev_uinet_detach(soctx);
if (listen_socket) uinet_soclose(listen_socket);
return (error);
}