+#include "private-libwebsockets.h"
+
/*
* included from libwebsockets.c for unix builds
*/
-static unsigned long long time_in_microseconds(void)
+unsigned long long time_in_microseconds(void)
{
struct timeval tv;
gettimeofday(&tv, NULL);
- return (tv.tv_sec * 1000000) + tv.tv_usec;
+ return ((unsigned long long)tv.tv_sec * 1000000LL) + tv.tv_usec;
}
LWS_VISIBLE int libwebsockets_get_random(struct libwebsocket_context *context,
return 0;
}
-static int lws_poll_listen_fd(struct libwebsocket_pollfd *fd)
+LWS_VISIBLE int
+lws_poll_listen_fd(struct libwebsocket_pollfd *fd)
{
return poll(fd, 1, 0);
}
-
-#ifdef LWS_USE_LIBEV
-LWS_VISIBLE void
-libwebsocket_accept_cb(struct ev_loop *loop, struct ev_io *watcher, int revents)
-{
- struct libwebsocket_pollfd eventfd;
- struct lws_io_watcher *lws_io = (struct lws_io_watcher*)watcher;
- struct libwebsocket_context *context = lws_io->context;
-
- if (revents & EV_ERROR)
- return;
-
- eventfd.fd = watcher->fd;
- eventfd.revents = EV_NONE;
- if (revents & EV_READ)
- eventfd.revents |= LWS_POLLIN;
-
- if (revents & EV_WRITE)
- eventfd.revents |= LWS_POLLOUT;
-
- libwebsocket_service_fd(context,&eventfd);
-}
-
-LWS_VISIBLE void
-libwebsocket_sigint_cb(
- struct ev_loop *loop, struct ev_signal* watcher, int revents)
-{
- ev_break(loop, EVBREAK_ALL);
-}
-
-LWS_VISIBLE int
-libwebsocket_initloop(
- struct libwebsocket_context *context,
- struct ev_loop *loop)
+/*
+ * This is just used to interrupt poll waiting
+ * we don't have to do anything with it.
+ */
+static void lws_sigusr2(int sig)
{
- int status = 0;
- int backend;
- const char * backend_name;
- struct ev_io *w_accept = (ev_io *)&context->w_accept;
- struct ev_signal *w_sigint = (ev_signal *)&context->w_sigint;
-
- if (!loop)
- loop = ev_default_loop(0);
-
- context->io_loop = loop;
-
- /*
- * Initialize the accept w_accept with the listening socket
- * and register a callback for read operations:
- */
- ev_io_init(w_accept, libwebsocket_accept_cb,
- context->listen_service_fd, EV_READ);
- ev_io_start(context->io_loop,w_accept);
- ev_signal_init(w_sigint, libwebsocket_sigint_cb, SIGINT);
- ev_signal_start(context->io_loop,w_sigint);
- backend = ev_backend(loop);
-
- switch (backend) {
- case EVBACKEND_SELECT:
- backend_name = "select";
- break;
- case EVBACKEND_POLL:
- backend_name = "poll";
- break;
- case EVBACKEND_EPOLL:
- backend_name = "epoll";
- break;
- case EVBACKEND_KQUEUE:
- backend_name = "kqueue";
- break;
- case EVBACKEND_DEVPOLL:
- backend_name = "/dev/poll";
- break;
- case EVBACKEND_PORT:
- backend_name = "Solaris 10 \"port\"";
- break;
- default:
- backend_name = "Unknown libev backend";
- break;
- };
-
- lwsl_notice(" libev backend: %s\n", backend_name);
-
- return status;
}
-#endif /* LWS_USE_LIBEV */
-
/**
* libwebsocket_cancel_service() - Cancel servicing of pending websocket activity
* @context: Websocket context
break;
}
syslog(syslog_level, "%s", line);
-}
\ No newline at end of file
+}
+
+LWS_VISIBLE int
+lws_plat_service(struct libwebsocket_context *context, int timeout_ms)
+{
+ int n;
+ int m;
+ char buf;
+ struct libwebsocket *wsi, *wsi_next;
+
+ /* stay dead once we are dead */
+
+ if (!context)
+ return 1;
+
+ lws_libev_run(context);
+
+ context->service_tid = context->protocols[0].callback(context, NULL,
+ LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0);
+
+#ifdef LWS_OPENSSL_SUPPORT
+ /* if we know we have non-network pending data, do not wait in poll */
+ if (lws_ssl_anybody_has_buffered_read(context))
+ timeout_ms = 0;
+#endif
+ n = poll(context->fds, context->fds_count, timeout_ms);
+ context->service_tid = 0;
+
+#ifdef LWS_OPENSSL_SUPPORT
+ if (!lws_ssl_anybody_has_buffered_read(context) && n == 0) {
+#else
+ if (n == 0) /* poll timeout */ {
+#endif
+ libwebsocket_service_fd(context, NULL);
+ return 0;
+ }
+
+ if (n < 0) {
+ if (LWS_ERRNO != LWS_EINTR)
+ return -1;
+ return 0;
+ }
+
+#ifdef LWS_OPENSSL_SUPPORT
+ /*
+ * For all guys with buffered SSL read data already saved up, if they
+ * are not flowcontrolled, fake their POLLIN status so they'll get
+ * service to use up the buffered incoming data, even though their
+ * network socket may have nothing
+ */
+
+ wsi = context->pending_read_list;
+ while (wsi) {
+ wsi_next = wsi->pending_read_list_next;
+ context->fds[wsi->sock].revents |=
+ context->fds[wsi->sock].events & POLLIN;
+ if (context->fds[wsi->sock].revents & POLLIN) {
+ /*
+ * he's going to get serviced now, take him off the
+ * list of guys with buffered SSL. If he still has some
+ * at the end of the service, he'll get put back on the
+ * list then.
+ */
+ lws_ssl_remove_wsi_from_buffered_list(context, wsi);
+ }
+ wsi = wsi_next;
+ }
+#endif
+
+ /* any socket with events to service? */
+
+ for (n = 0; n < context->fds_count; n++) {
+
+ if (!context->fds[n].revents)
+ continue;
+
+ if (context->fds[n].fd == context->dummy_pipe_fds[0]) {
+ if (read(context->fds[n].fd, &buf, 1) != 1)
+ lwsl_err("Cannot read from dummy pipe.");
+ continue;
+ }
+
+ m = libwebsocket_service_fd(context, &context->fds[n]);
+ if (m < 0)
+ return -1;
+ /* if something closed, retry this slot */
+ if (m)
+ n--;
+ }
+
+ return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_set_socket_options(struct libwebsocket_context *context, int fd)
+{
+ int optval = 1;
+ socklen_t optlen = sizeof(optval);
+
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
+ defined(__OpenBSD__)
+ struct protoent *tcp_proto;
+#endif
+
+ if (context->ka_time) {
+ /* enable keepalive on this socket */
+ optval = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE,
+ (const void *)&optval, optlen) < 0)
+ return 1;
+
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
+ defined(__CYGWIN__) || defined(__OpenBSD__)
+
+ /*
+ * didn't find a way to set these per-socket, need to
+ * tune kernel systemwide values
+ */
+#else
+ /* set the keepalive conditions we want on it too */
+ optval = context->ka_time;
+ if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE,
+ (const void *)&optval, optlen) < 0)
+ return 1;
+
+ optval = context->ka_interval;
+ if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL,
+ (const void *)&optval, optlen) < 0)
+ return 1;
+
+ optval = context->ka_probes;
+ if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT,
+ (const void *)&optval, optlen) < 0)
+ return 1;
+#endif
+ }
+
+ /* Disable Nagle */
+ optval = 1;
+#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__NetBSD__) && \
+ !defined(__OpenBSD__)
+ if (setsockopt(fd, SOL_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0)
+ return 1;
+#else
+ tcp_proto = getprotobyname("TCP");
+ if (setsockopt(fd, tcp_proto->p_proto, TCP_NODELAY, &optval, optlen) < 0)
+ return 1;
+#endif
+
+ /* We are nonblocking... */
+ if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
+ return 1;
+
+ return 0;
+}
+
+LWS_VISIBLE void
+lws_plat_drop_app_privileges(struct lws_context_creation_info *info)
+{
+ if (info->gid != -1)
+ if (setgid(info->gid))
+ lwsl_warn("setgid: %s\n", strerror(LWS_ERRNO));
+ if (info->uid != -1)
+ if (setuid(info->uid))
+ lwsl_warn("setuid: %s\n", strerror(LWS_ERRNO));
+}
+
+LWS_VISIBLE int
+lws_plat_init_fd_tables(struct libwebsocket_context *context)
+{
+ if (lws_libev_init_fd_table(context))
+ /* libev handled it instead */
+ return 0;
+
+ if (pipe(context->dummy_pipe_fds)) {
+ lwsl_err("Unable to create pipe\n");
+ return 1;
+ }
+
+ /* use the read end of pipe as first item */
+ context->fds[0].fd = context->dummy_pipe_fds[0];
+ context->fds[0].events = LWS_POLLIN;
+ context->fds[0].revents = 0;
+ context->fds_count = 1;
+
+ context->fd_random = open(SYSTEM_RANDOM_FILEPATH, O_RDONLY);
+ if (context->fd_random < 0) {
+ lwsl_err("Unable to open random device %s %d\n",
+ SYSTEM_RANDOM_FILEPATH, context->fd_random);
+ return 1;
+ }
+
+ return 0;
+}
+
+static void sigpipe_handler(int x)
+{
+}
+
+
+LWS_VISIBLE int
+lws_plat_context_early_init(void)
+{
+ sigset_t mask;
+
+ signal(SIGUSR2, lws_sigusr2);
+ sigemptyset(&mask);
+ sigaddset(&mask, SIGUSR2);
+
+ sigprocmask(SIG_BLOCK, &mask, NULL);
+
+ signal(SIGPIPE, sigpipe_handler);
+
+ return 0;
+}
+
+LWS_VISIBLE void
+lws_plat_context_early_destroy(struct libwebsocket_context *context)
+{
+}
+
+LWS_VISIBLE void
+lws_plat_context_late_destroy(struct libwebsocket_context *context)
+{
+ close(context->dummy_pipe_fds[0]);
+ close(context->dummy_pipe_fds[1]);
+ close(context->fd_random);
+}
+
+/* cast a struct sockaddr_in6 * into addr for ipv6 */
+
+LWS_VISIBLE int
+interface_to_sa(struct libwebsocket_context *context,
+ const char *ifname, struct sockaddr_in *addr, size_t addrlen)
+{
+ int rc = -1;
+
+ struct ifaddrs *ifr;
+ struct ifaddrs *ifc;
+#ifdef LWS_USE_IPV6
+ struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr;
+#endif
+
+ getifaddrs(&ifr);
+ for (ifc = ifr; ifc != NULL && rc; ifc = ifc->ifa_next) {
+ if (!ifc->ifa_addr)
+ continue;
+
+ lwsl_info(" interface %s vs %s\n", ifc->ifa_name, ifname);
+
+ if (strcmp(ifc->ifa_name, ifname))
+ continue;
+
+ switch (ifc->ifa_addr->sa_family) {
+ case AF_INET:
+#ifdef LWS_USE_IPV6
+ if (LWS_IPV6_ENABLED(context)) {
+ /* map IPv4 to IPv6 */
+ bzero((char *)&addr6->sin6_addr,
+ sizeof(struct in6_addr));
+ addr6->sin6_addr.s6_addr[10] = 0xff;
+ addr6->sin6_addr.s6_addr[11] = 0xff;
+ memcpy(&addr6->sin6_addr.s6_addr[12],
+ &((struct sockaddr_in *)ifc->ifa_addr)->sin_addr,
+ sizeof(struct in_addr));
+ } else
+#endif
+ memcpy(addr,
+ (struct sockaddr_in *)ifc->ifa_addr,
+ sizeof(struct sockaddr_in));
+ break;
+#ifdef LWS_USE_IPV6
+ case AF_INET6:
+ memcpy(&addr6->sin6_addr,
+ &((struct sockaddr_in6 *)ifc->ifa_addr)->sin6_addr,
+ sizeof(struct in6_addr));
+ break;
+#endif
+ default:
+ continue;
+ }
+ rc = 0;
+ }
+
+ freeifaddrs(ifr);
+
+ if (rc == -1) {
+ /* check if bind to IP adddress */
+#ifdef LWS_USE_IPV6
+ if (inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1)
+ rc = 0;
+ else
+#endif
+ if (inet_pton(AF_INET, ifname, &addr->sin_addr) == 1)
+ rc = 0;
+ }
+
+ return rc;
+}
+
+LWS_VISIBLE void
+lws_plat_insert_socket_into_fds(struct libwebsocket_context *context,
+ struct libwebsocket *wsi)
+{
+ lws_libev_io(context, wsi, LWS_EV_START | LWS_EV_READ);
+ context->fds[context->fds_count++].revents = 0;
+}
+
+LWS_VISIBLE void
+lws_plat_delete_socket_from_fds(struct libwebsocket_context *context,
+ struct libwebsocket *wsi, int m)
+{
+}
+
+LWS_VISIBLE void
+lws_plat_service_periodic(struct libwebsocket_context *context)
+{
+ /* if our parent went down, don't linger around */
+ if (context->started_with_parent &&
+ kill(context->started_with_parent, 0) < 0)
+ kill(getpid(), SIGTERM);
+}
+
+LWS_VISIBLE int
+lws_plat_change_pollfd(struct libwebsocket_context *context,
+ struct libwebsocket *wsi, struct libwebsocket_pollfd *pfd)
+{
+ return 0;
+}
+
+LWS_VISIBLE int
+lws_plat_open_file(const char* filename, unsigned long* filelen)
+{
+ struct stat stat_buf;
+ int ret = open(filename, O_RDONLY);
+
+ if (ret < 0)
+ return LWS_INVALID_FILE;
+
+ if (fstat(ret, &stat_buf) < 0) {
+ close(ret);
+ return LWS_INVALID_FILE;
+ }
+ *filelen = stat_buf.st_size;
+ return ret;
+}
+
+#ifdef LWS_USE_IPV6
+LWS_VISIBLE const char *
+lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt)
+{
+ return inet_ntop(af, src, dst, cnt);
+}
+#endif
projects / platform / upstream / libwebsockets.git / blobdiff