diff options
Diffstat (limited to 'thirdparty/libwebsockets/plat')
| -rw-r--r-- | thirdparty/libwebsockets/plat/lws-plat-unix.c | 850 | ||||
| -rw-r--r-- | thirdparty/libwebsockets/plat/lws-plat-win.c | 745 |
2 files changed, 1595 insertions, 0 deletions
diff --git a/thirdparty/libwebsockets/plat/lws-plat-unix.c b/thirdparty/libwebsockets/plat/lws-plat-unix.c new file mode 100644 index 0000000000..a51e67bb81 --- /dev/null +++ b/thirdparty/libwebsockets/plat/lws-plat-unix.c @@ -0,0 +1,850 @@ +/* + * libwebsockets - small server side websockets and web server implementation + * + * Copyright (C) 2010-2017 Andy Green <andy@warmcat.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation: + * version 2.1 of the License. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include "private-libwebsockets.h" + +#include <pwd.h> +#include <grp.h> + +#ifdef LWS_WITH_PLUGINS +#include <dlfcn.h> +#endif +#include <dirent.h> + +unsigned long long time_in_microseconds(void) +{ + struct timeval tv; + + gettimeofday(&tv, NULL); + return ((unsigned long long)tv.tv_sec * 1000000LL) + tv.tv_usec; +} + +LWS_VISIBLE int +lws_get_random(struct lws_context *context, void *buf, int len) +{ + return read(context->fd_random, (char *)buf, len); +} + +LWS_VISIBLE int +lws_send_pipe_choked(struct lws *wsi) +{ + struct lws_pollfd fds; + struct lws *wsi_eff = wsi; + +#if defined(LWS_WITH_HTTP2) + wsi_eff = lws_get_network_wsi(wsi); +#endif + /* treat the fact we got a truncated send pending as if we're choked */ + if (wsi_eff->trunc_len) + return 1; + + fds.fd = wsi_eff->desc.sockfd; + fds.events = POLLOUT; + fds.revents = 0; + + if (poll(&fds, 1, 0) != 1) + return 1; + + if ((fds.revents & POLLOUT) == 0) + return 1; + + /* okay to send another packet without blocking */ + + return 0; +} + +LWS_VISIBLE int +lws_poll_listen_fd(struct lws_pollfd *fd) +{ + return poll(fd, 1, 0); +} + +LWS_VISIBLE void +lws_cancel_service_pt(struct lws *wsi) +{ + struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi]; + char buf = 0; + + if (write(pt->dummy_pipe_fds[1], &buf, sizeof(buf)) != 1) + lwsl_err("Cannot write to dummy pipe"); +} + +LWS_VISIBLE void +lws_cancel_service(struct lws_context *context) +{ + struct lws_context_per_thread *pt = &context->pt[0]; + char buf = 0, m = context->count_threads; + + while (m--) { + if (write(pt->dummy_pipe_fds[1], &buf, sizeof(buf)) != 1) + lwsl_err("Cannot write to dummy pipe"); + pt++; + } +} + +LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line) +{ + int syslog_level = LOG_DEBUG; + + switch (level) { + case LLL_ERR: + syslog_level = LOG_ERR; + break; + case LLL_WARN: + syslog_level = LOG_WARNING; + break; + case LLL_NOTICE: + syslog_level = LOG_NOTICE; + break; + case LLL_INFO: + syslog_level = LOG_INFO; + break; + } + syslog(syslog_level, "%s", line); +} + +LWS_VISIBLE LWS_EXTERN int +_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi) +{ + struct lws_context_per_thread *pt; + int n = -1, m, c; + char buf; + + /* stay dead once we are dead */ + + if (!context || !context->vhost_list) + return 1; + + pt = &context->pt[tsi]; + + lws_stats_atomic_bump(context, pt, LWSSTATS_C_SERVICE_ENTRY, 1); + + if (timeout_ms < 0) + goto faked_service; + + lws_libev_run(context, tsi); + lws_libuv_run(context, tsi); + lws_libevent_run(context, tsi); + + if (!context->service_tid_detected) { + struct lws _lws; + + memset(&_lws, 0, sizeof(_lws)); + _lws.context = context; + + context->service_tid_detected = + context->vhost_list->protocols[0].callback( + &_lws, LWS_CALLBACK_GET_THREAD_ID, NULL, NULL, 0); + context->service_tid = context->service_tid_detected; + context->service_tid_detected = 1; + } + + /* + * is there anybody with pending stuff that needs service forcing? + */ + if (!lws_service_adjust_timeout(context, 1, tsi)) { + /* -1 timeout means just do forced service */ + _lws_plat_service_tsi(context, -1, pt->tid); + /* still somebody left who wants forced service? */ + if (!lws_service_adjust_timeout(context, 1, pt->tid)) + /* yes... come back again quickly */ + timeout_ms = 0; + } + + n = poll(pt->fds, pt->fds_count, timeout_ms); + +#ifdef LWS_OPENSSL_SUPPORT + if (!n && !pt->rx_draining_ext_list && + !lws_ssl_anybody_has_buffered_read_tsi(context, tsi)) { +#else + if (!pt->rx_draining_ext_list && !n) /* poll timeout */ { +#endif + lws_service_fd_tsi(context, NULL, tsi); + return 0; + } + +faked_service: + m = lws_service_flag_pending(context, tsi); + if (m) + c = -1; /* unknown limit */ + else + if (n < 0) { + if (LWS_ERRNO != LWS_EINTR) + return -1; + return 0; + } else + c = n; + + /* any socket with events to service? */ + for (n = 0; n < pt->fds_count && c; n++) { + if (!pt->fds[n].revents) + continue; + + c--; + + if (pt->fds[n].fd == pt->dummy_pipe_fds[0]) { + if (read(pt->fds[n].fd, &buf, 1) != 1) + lwsl_err("Cannot read from dummy pipe."); + continue; + } + + m = lws_service_fd_tsi(context, &pt->fds[n], tsi); + if (m < 0) + return -1; + /* if something closed, retry this slot */ + if (m) + n--; + } + + return 0; +} + +LWS_VISIBLE int +lws_plat_check_connection_error(struct lws *wsi) +{ + return 0; +} + +LWS_VISIBLE int +lws_plat_service(struct lws_context *context, int timeout_ms) +{ + return _lws_plat_service_tsi(context, timeout_ms, 0); +} + +LWS_VISIBLE int +lws_plat_set_socket_options(struct lws_vhost *vhost, int fd) +{ + int optval = 1; + socklen_t optlen = sizeof(optval); + +#if defined(__APPLE__) || \ + defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \ + defined(__NetBSD__) || \ + defined(__OpenBSD__) || \ + defined(__HAIKU__) + struct protoent *tcp_proto; +#endif + + if (vhost->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(__FreeBSD_kernel__) || \ + defined(__NetBSD__) || \ + defined(__CYGWIN__) || defined(__OpenBSD__) || defined (__sun) || \ + defined(__HAIKU__) + + /* + * 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 = vhost->ka_time; + if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, + (const void *)&optval, optlen) < 0) + return 1; + + optval = vhost->ka_interval; + if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, + (const void *)&optval, optlen) < 0) + return 1; + + optval = vhost->ka_probes; + if (setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, + (const void *)&optval, optlen) < 0) + return 1; +#endif + } + +#if defined(SO_BINDTODEVICE) + if (vhost->bind_iface && vhost->iface) { + lwsl_info("binding listen skt to %s using SO_BINDTODEVICE\n", vhost->iface); + if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, vhost->iface, + strlen(vhost->iface)) < 0) { + lwsl_warn("Failed to bind to device %s\n", vhost->iface); + return 1; + } + } +#endif + + /* Disable Nagle */ + optval = 1; +#if defined (__sun) + if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&optval, optlen) < 0) + return 1; +#elif !defined(__APPLE__) && \ + !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) && \ + !defined(__NetBSD__) && \ + !defined(__OpenBSD__) && \ + !defined(__HAIKU__) + 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; +} + +#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP) +static void +_lws_plat_apply_caps(int mode, cap_value_t *cv, int count) +{ + cap_t caps; + + if (!count) + return; + + caps = cap_get_proc(); + + cap_set_flag(caps, mode, count, cv, CAP_SET); + cap_set_proc(caps); + prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0); + cap_free(caps); +} +#endif + +LWS_VISIBLE void +lws_plat_drop_app_privileges(struct lws_context_creation_info *info) +{ +#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP) + int n; +#endif + + if (info->gid && info->gid != -1) + if (setgid(info->gid)) + lwsl_warn("setgid: %s\n", strerror(LWS_ERRNO)); + + if (info->uid && info->uid != -1) { + struct passwd *p = getpwuid(info->uid); + + if (p) { + +#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP) + _lws_plat_apply_caps(CAP_PERMITTED, info->caps, info->count_caps); +#endif + + initgroups(p->pw_name, info->gid); + if (setuid(info->uid)) + lwsl_warn("setuid: %s\n", strerror(LWS_ERRNO)); + else + lwsl_notice("Set privs to user '%s'\n", p->pw_name); + +#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP) + _lws_plat_apply_caps(CAP_EFFECTIVE, info->caps, info->count_caps); + + if (info->count_caps) + for (n = 0; n < info->count_caps; n++) + lwsl_notice(" RETAINING CAPABILITY %d\n", (int)info->caps[n]); +#endif + + } else + lwsl_warn("getpwuid: unable to find uid %d", info->uid); + } +} + +#ifdef LWS_WITH_PLUGINS + +#if defined(LWS_WITH_LIBUV) && UV_VERSION_MAJOR > 0 + +/* libuv.c implements these in a cross-platform way */ + +#else + +static int filter(const struct dirent *ent) +{ + if (!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, "..")) + return 0; + + return 1; +} + +LWS_VISIBLE int +lws_plat_plugins_init(struct lws_context * context, const char * const *d) +{ + struct lws_plugin_capability lcaps; + struct lws_plugin *plugin; + lws_plugin_init_func initfunc; + struct dirent **namelist; + int n, i, m, ret = 0; + char path[256]; + void *l; + + lwsl_notice(" Plugins:\n"); + + while (d && *d) { + n = scandir(*d, &namelist, filter, alphasort); + if (n < 0) { + lwsl_err("Scandir on %s failed\n", *d); + return 1; + } + + for (i = 0; i < n; i++) { + if (strlen(namelist[i]->d_name) < 7) + goto inval; + + lwsl_notice(" %s\n", namelist[i]->d_name); + + lws_snprintf(path, sizeof(path) - 1, "%s/%s", *d, + namelist[i]->d_name); + l = dlopen(path, RTLD_NOW); + if (!l) { + lwsl_err("Error loading DSO: %s\n", dlerror()); + while (i++ < n) + free(namelist[i]); + goto bail; + } + /* we could open it, can we get his init function? */ + m = lws_snprintf(path, sizeof(path) - 1, "init_%s", + namelist[i]->d_name + 3 /* snip lib... */); + path[m - 3] = '\0'; /* snip the .so */ + initfunc = dlsym(l, path); + if (!initfunc) { + lwsl_err("Failed to get init on %s: %s", + namelist[i]->d_name, dlerror()); + dlclose(l); + } + lcaps.api_magic = LWS_PLUGIN_API_MAGIC; + m = initfunc(context, &lcaps); + if (m) { + lwsl_err("Initializing %s failed %d\n", + namelist[i]->d_name, m); + dlclose(l); + goto skip; + } + + plugin = lws_malloc(sizeof(*plugin), "plugin"); + if (!plugin) { + lwsl_err("OOM\n"); + goto bail; + } + plugin->list = context->plugin_list; + context->plugin_list = plugin; + strncpy(plugin->name, namelist[i]->d_name, sizeof(plugin->name) - 1); + plugin->name[sizeof(plugin->name) - 1] = '\0'; + plugin->l = l; + plugin->caps = lcaps; + context->plugin_protocol_count += lcaps.count_protocols; + context->plugin_extension_count += lcaps.count_extensions; + + free(namelist[i]); + continue; + + skip: + dlclose(l); + inval: + free(namelist[i]); + } + free(namelist); + d++; + } + +bail: + free(namelist); + + return ret; +} + +LWS_VISIBLE int +lws_plat_plugins_destroy(struct lws_context * context) +{ + struct lws_plugin *plugin = context->plugin_list, *p; + lws_plugin_destroy_func func; + char path[256]; + int m; + + if (!plugin) + return 0; + + lwsl_notice("%s\n", __func__); + + while (plugin) { + p = plugin; + m = lws_snprintf(path, sizeof(path) - 1, "destroy_%s", plugin->name + 3); + path[m - 3] = '\0'; + func = dlsym(plugin->l, path); + if (!func) { + lwsl_err("Failed to get destroy on %s: %s", + plugin->name, dlerror()); + goto next; + } + m = func(context); + if (m) + lwsl_err("Initializing %s failed %d\n", + plugin->name, m); +next: + dlclose(p->l); + plugin = p->list; + p->list = NULL; + free(p); + } + + context->plugin_list = NULL; + + return 0; +} + +#endif +#endif + + +#if 0 +static void +sigabrt_handler(int x) +{ + printf("%s\n", __func__); +} +#endif + +LWS_VISIBLE int +lws_plat_context_early_init(void) +{ +#if !defined(LWS_AVOID_SIGPIPE_IGN) + signal(SIGPIPE, SIG_IGN); +#endif + + return 0; +} + +LWS_VISIBLE void +lws_plat_context_early_destroy(struct lws_context *context) +{ +} + +LWS_VISIBLE void +lws_plat_context_late_destroy(struct lws_context *context) +{ + struct lws_context_per_thread *pt = &context->pt[0]; + int m = context->count_threads; + +#ifdef LWS_WITH_PLUGINS + if (context->plugin_list) + lws_plat_plugins_destroy(context); +#endif + + if (context->lws_lookup) + lws_free(context->lws_lookup); + + while (m--) { + if (pt->dummy_pipe_fds[0]) + close(pt->dummy_pipe_fds[0]); + if (pt->dummy_pipe_fds[1]) + close(pt->dummy_pipe_fds[1]); + pt++; + } + if (!context->fd_random) + lwsl_err("ZERO RANDOM FD\n"); + if (context->fd_random != LWS_INVALID_FILE) + close(context->fd_random); +} + +/* cast a struct sockaddr_in6 * into addr for ipv6 */ + +LWS_VISIBLE int +lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr, + size_t addrlen) +{ + int rc = -1; + + struct ifaddrs *ifr; + struct ifaddrs *ifc; +#ifdef LWS_WITH_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_WITH_IPV6 + if (ipv6) { + /* 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_WITH_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 address */ +#ifdef LWS_WITH_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 lws_context *context, struct lws *wsi) +{ + struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi]; + + lws_libev_io(wsi, LWS_EV_START | LWS_EV_READ); + lws_libuv_io(wsi, LWS_EV_START | LWS_EV_READ); + lws_libevent_io(wsi, LWS_EV_START | LWS_EV_READ); + + pt->fds[pt->fds_count++].revents = 0; +} + +LWS_VISIBLE void +lws_plat_delete_socket_from_fds(struct lws_context *context, + struct lws *wsi, int m) +{ + struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi]; + + lws_libev_io(wsi, LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE); + lws_libuv_io(wsi, LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE); + lws_libevent_io(wsi, LWS_EV_STOP | LWS_EV_READ | LWS_EV_WRITE); + + pt->fds_count--; +} + +LWS_VISIBLE void +lws_plat_service_periodic(struct lws_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 lws_context *context, + struct lws *wsi, struct lws_pollfd *pfd) +{ + return 0; +} + +LWS_VISIBLE const char * +lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt) +{ + return inet_ntop(af, src, dst, cnt); +} + +LWS_VISIBLE int +lws_plat_inet_pton(int af, const char *src, void *dst) +{ + return inet_pton(af, src, dst); +} + +LWS_VISIBLE lws_fop_fd_t +_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename, + const char *vpath, lws_fop_flags_t *flags) +{ + struct stat stat_buf; + int ret = open(filename, (*flags) & LWS_FOP_FLAGS_MASK, 0664); + lws_fop_fd_t fop_fd; + + if (ret < 0) + return NULL; + + if (fstat(ret, &stat_buf) < 0) + goto bail; + + fop_fd = malloc(sizeof(*fop_fd)); + if (!fop_fd) + goto bail; + + fop_fd->fops = fops; + fop_fd->flags = *flags; + fop_fd->fd = ret; + fop_fd->filesystem_priv = NULL; /* we don't use it */ + fop_fd->len = stat_buf.st_size; + fop_fd->pos = 0; + + return fop_fd; + +bail: + close(ret); + return NULL; +} + +LWS_VISIBLE int +_lws_plat_file_close(lws_fop_fd_t *fop_fd) +{ + int fd = (*fop_fd)->fd; + + free(*fop_fd); + *fop_fd = NULL; + + return close(fd); +} + +LWS_VISIBLE lws_fileofs_t +_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset) +{ + lws_fileofs_t r; + + if (offset > 0 && offset > fop_fd->len - fop_fd->pos) + offset = fop_fd->len - fop_fd->pos; + + if ((lws_fileofs_t)fop_fd->pos + offset < 0) + offset = -fop_fd->pos; + + r = lseek(fop_fd->fd, offset, SEEK_CUR); + + if (r >= 0) + fop_fd->pos = r; + else + lwsl_err("error seeking from cur %ld, offset %ld\n", + (long)fop_fd->pos, (long)offset); + + return r; +} + +LWS_VISIBLE int +_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount, + uint8_t *buf, lws_filepos_t len) +{ + long n; + + n = read((int)fop_fd->fd, buf, len); + if (n == -1) { + *amount = 0; + return -1; + } + fop_fd->pos += n; + lwsl_debug("%s: read %ld of req %ld, pos %ld, len %ld\n", __func__, n, + (long)len, (long)fop_fd->pos, (long)fop_fd->len); + *amount = n; + + return 0; +} + +LWS_VISIBLE int +_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount, + uint8_t *buf, lws_filepos_t len) +{ + long n; + + n = write((int)fop_fd->fd, buf, len); + if (n == -1) { + *amount = 0; + return -1; + } + + fop_fd->pos += n; + *amount = n; + + return 0; +} + + +LWS_VISIBLE int +lws_plat_init(struct lws_context *context, + struct lws_context_creation_info *info) +{ + struct lws_context_per_thread *pt = &context->pt[0]; + int n = context->count_threads, fd; + + /* master context has the global fd lookup array */ + context->lws_lookup = lws_zalloc(sizeof(struct lws *) * + context->max_fds, "lws_lookup"); + if (context->lws_lookup == NULL) { + lwsl_err("OOM on lws_lookup array for %d connections\n", + context->max_fds); + return 1; + } + + lwsl_info(" mem: platform fd map: %5lu bytes\n", + (unsigned long)(sizeof(struct lws *) * context->max_fds)); + fd = open(SYSTEM_RANDOM_FILEPATH, O_RDONLY); + + context->fd_random = fd; + if (context->fd_random < 0) { + lwsl_err("Unable to open random device %s %d\n", + SYSTEM_RANDOM_FILEPATH, context->fd_random); + return 1; + } + + if (!lws_libev_init_fd_table(context) && + !lws_libuv_init_fd_table(context) && + !lws_libevent_init_fd_table(context)) { + /* otherwise libev/uv/event handled it instead */ + + while (n--) { + if (pipe(pt->dummy_pipe_fds)) { + lwsl_err("Unable to create pipe\n"); + return 1; + } + + /* use the read end of pipe as first item */ + pt->fds[0].fd = pt->dummy_pipe_fds[0]; + pt->fds[0].events = LWS_POLLIN; + pt->fds[0].revents = 0; + pt->fds_count = 1; + pt++; + } + } + +#ifdef LWS_WITH_PLUGINS + if (info->plugin_dirs) + lws_plat_plugins_init(context, info->plugin_dirs); +#endif + + return 0; +} diff --git a/thirdparty/libwebsockets/plat/lws-plat-win.c b/thirdparty/libwebsockets/plat/lws-plat-win.c new file mode 100644 index 0000000000..f5b178ce85 --- /dev/null +++ b/thirdparty/libwebsockets/plat/lws-plat-win.c @@ -0,0 +1,745 @@ +#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS +#define _WINSOCK_DEPRECATED_NO_WARNINGS +#endif +#include "private-libwebsockets.h" + +unsigned long long +time_in_microseconds() +{ +#ifndef DELTA_EPOCH_IN_MICROSECS +#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL +#endif + FILETIME filetime; + ULARGE_INTEGER datetime; + +#ifdef _WIN32_WCE + GetCurrentFT(&filetime); +#else + GetSystemTimeAsFileTime(&filetime); +#endif + + /* + * As per Windows documentation for FILETIME, copy the resulting FILETIME structure to a + * ULARGE_INTEGER structure using memcpy (using memcpy instead of direct assignment can + * prevent alignment faults on 64-bit Windows). + */ + memcpy(&datetime, &filetime, sizeof(datetime)); + + /* Windows file times are in 100s of nanoseconds. */ + return (datetime.QuadPart - DELTA_EPOCH_IN_MICROSECS) / 10; +} + +#ifdef _WIN32_WCE +time_t time(time_t *t) +{ + time_t ret = time_in_microseconds() / 1000000; + + if(t != NULL) + *t = ret; + + return ret; +} +#endif + +/* file descriptor hash management */ + +struct lws * +wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd) +{ + int h = LWS_FD_HASH(fd); + int n = 0; + + for (n = 0; n < context->fd_hashtable[h].length; n++) + if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd) + return context->fd_hashtable[h].wsi[n]; + + return NULL; +} + +int +insert_wsi(struct lws_context *context, struct lws *wsi) +{ + int h = LWS_FD_HASH(wsi->desc.sockfd); + + if (context->fd_hashtable[h].length == (getdtablesize() - 1)) { + lwsl_err("hash table overflow\n"); + return 1; + } + + context->fd_hashtable[h].wsi[context->fd_hashtable[h].length++] = wsi; + + return 0; +} + +int +delete_from_fd(struct lws_context *context, lws_sockfd_type fd) +{ + int h = LWS_FD_HASH(fd); + int n = 0; + + for (n = 0; n < context->fd_hashtable[h].length; n++) + if (context->fd_hashtable[h].wsi[n]->desc.sockfd == fd) { + while (n < context->fd_hashtable[h].length) { + context->fd_hashtable[h].wsi[n] = + context->fd_hashtable[h].wsi[n + 1]; + n++; + } + context->fd_hashtable[h].length--; + + return 0; + } + + lwsl_err("Failed to find fd %d requested for " + "delete in hashtable\n", fd); + return 1; +} + +LWS_VISIBLE int lws_get_random(struct lws_context *context, + void *buf, int len) +{ + int n; + char *p = (char *)buf; + + for (n = 0; n < len; n++) + p[n] = (unsigned char)rand(); + + return n; +} + +LWS_VISIBLE int lws_send_pipe_choked(struct lws *wsi) +{ + /* treat the fact we got a truncated send pending as if we're choked */ + if (wsi->trunc_len) + return 1; + + return (int)wsi->sock_send_blocking; +} + +LWS_VISIBLE int lws_poll_listen_fd(struct lws_pollfd *fd) +{ + fd_set readfds; + struct timeval tv = { 0, 0 }; + + assert((fd->events & LWS_POLLIN) == LWS_POLLIN); + + FD_ZERO(&readfds); + FD_SET(fd->fd, &readfds); + + return select(fd->fd + 1, &readfds, NULL, NULL, &tv); +} + +LWS_VISIBLE void +lws_cancel_service(struct lws_context *context) +{ + struct lws_context_per_thread *pt = &context->pt[0]; + int n = context->count_threads; + + while (n--) { + WSASetEvent(pt->events[0]); + pt++; + } +} + +LWS_VISIBLE void +lws_cancel_service_pt(struct lws *wsi) +{ + struct lws_context_per_thread *pt = &wsi->context->pt[(int)wsi->tsi]; + WSASetEvent(pt->events[0]); +} + +LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line) +{ + lwsl_emit_stderr(level, line); +} + +LWS_VISIBLE LWS_EXTERN int +_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi) +{ + struct lws_context_per_thread *pt; + WSANETWORKEVENTS networkevents; + struct lws_pollfd *pfd; + struct lws *wsi; + unsigned int i; + DWORD ev; + int n, m; + + /* stay dead once we are dead */ + if (context == NULL || !context->vhost_list) + return 1; + + pt = &context->pt[tsi]; + + if (!context->service_tid_detected) { + struct lws _lws; + + memset(&_lws, 0, sizeof(_lws)); + _lws.context = context; + + context->service_tid_detected = context->vhost_list-> + protocols[0].callback(&_lws, LWS_CALLBACK_GET_THREAD_ID, + NULL, NULL, 0); + context->service_tid = context->service_tid_detected; + context->service_tid_detected = 1; + } + + if (timeout_ms < 0) + { + if (lws_service_flag_pending(context, tsi)) { + /* any socket with events to service? */ + for (n = 0; n < (int)pt->fds_count; n++) { + if (!pt->fds[n].revents) + continue; + + m = lws_service_fd_tsi(context, &pt->fds[n], tsi); + if (m < 0) + return -1; + /* if something closed, retry this slot */ + if (m) + n--; + } + } + return 0; + } + + for (i = 0; i < pt->fds_count; ++i) { + pfd = &pt->fds[i]; + + if (!(pfd->events & LWS_POLLOUT)) + continue; + + wsi = wsi_from_fd(context, pfd->fd); + if (wsi->listener) + continue; + if (!wsi || wsi->sock_send_blocking) + continue; + pfd->revents = LWS_POLLOUT; + n = lws_service_fd(context, pfd); + if (n < 0) + return -1; + /* if something closed, retry this slot */ + if (n) + i--; + + if (wsi->trunc_len) + WSASetEvent(pt->events[0]); + } + + /* + * is there anybody with pending stuff that needs service forcing? + */ + if (!lws_service_adjust_timeout(context, 1, tsi)) { + /* -1 timeout means just do forced service */ + _lws_plat_service_tsi(context, -1, pt->tid); + /* still somebody left who wants forced service? */ + if (!lws_service_adjust_timeout(context, 1, pt->tid)) + /* yes... come back again quickly */ + timeout_ms = 0; + } + + ev = WSAWaitForMultipleEvents( 1, pt->events , FALSE, timeout_ms, FALSE); + if (ev == WSA_WAIT_EVENT_0) { + unsigned int eIdx; + + WSAResetEvent(pt->events[0]); + + for (eIdx = 0; eIdx < pt->fds_count; ++eIdx) { + if (WSAEnumNetworkEvents(pt->fds[eIdx].fd, 0, &networkevents) == SOCKET_ERROR) { + lwsl_err("WSAEnumNetworkEvents() failed with error %d\n", LWS_ERRNO); + return -1; + } + + pfd = &pt->fds[eIdx]; + pfd->revents = (short)networkevents.lNetworkEvents; + + if ((networkevents.lNetworkEvents & FD_CONNECT) && + networkevents.iErrorCode[FD_CONNECT_BIT] && + networkevents.iErrorCode[FD_CONNECT_BIT] != LWS_EALREADY && + networkevents.iErrorCode[FD_CONNECT_BIT] != LWS_EINPROGRESS && + networkevents.iErrorCode[FD_CONNECT_BIT] != LWS_EWOULDBLOCK && + networkevents.iErrorCode[FD_CONNECT_BIT] != WSAEINVAL) { + lwsl_debug("Unable to connect errno=%d\n", + networkevents.iErrorCode[FD_CONNECT_BIT]); + pfd->revents |= LWS_POLLHUP; + } + + if (pfd->revents & LWS_POLLOUT) { + wsi = wsi_from_fd(context, pfd->fd); + if (wsi) + wsi->sock_send_blocking = 0; + } + /* if something closed, retry this slot */ + if (pfd->revents & LWS_POLLHUP) + --eIdx; + + if( pfd->revents != 0 ) { + lws_service_fd_tsi(context, pfd, tsi); + + } + } + } + + context->service_tid = 0; + + if (ev == WSA_WAIT_TIMEOUT) { + lws_service_fd(context, NULL); + } + return 0;; +} + +LWS_VISIBLE int +lws_plat_service(struct lws_context *context, int timeout_ms) +{ + return _lws_plat_service_tsi(context, timeout_ms, 0); +} + +LWS_VISIBLE int +lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd) +{ + int optval = 1; + int optlen = sizeof(optval); + u_long optl = 1; + DWORD dwBytesRet; + struct tcp_keepalive alive; + int protonbr; +#ifndef _WIN32_WCE + struct protoent *tcp_proto; +#endif + + if (vhost->ka_time) { + /* enable keepalive on this socket */ + optval = 1; + if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, + (const char *)&optval, optlen) < 0) + return 1; + + alive.onoff = TRUE; + alive.keepalivetime = vhost->ka_time; + alive.keepaliveinterval = vhost->ka_interval; + + if (WSAIoctl(fd, SIO_KEEPALIVE_VALS, &alive, sizeof(alive), + NULL, 0, &dwBytesRet, NULL, NULL)) + return 1; + } + + /* Disable Nagle */ + optval = 1; +#ifndef _WIN32_WCE + tcp_proto = getprotobyname("TCP"); + if (!tcp_proto) { + lwsl_err("getprotobyname() failed with error %d\n", LWS_ERRNO); + return 1; + } + protonbr = tcp_proto->p_proto; +#else + protonbr = 6; +#endif + + setsockopt(fd, protonbr, TCP_NODELAY, (const char *)&optval, optlen); + + /* We are nonblocking... */ + ioctlsocket(fd, FIONBIO, &optl); + + return 0; +} + +LWS_VISIBLE void +lws_plat_drop_app_privileges(struct lws_context_creation_info *info) +{ +} + +LWS_VISIBLE int +lws_plat_context_early_init(void) +{ + WORD wVersionRequested; + WSADATA wsaData; + int err; + + /* Use the MAKEWORD(lowbyte, highbyte) macro from Windef.h */ + wVersionRequested = MAKEWORD(2, 2); + + err = WSAStartup(wVersionRequested, &wsaData); + if (!err) + return 0; + /* + * Tell the user that we could not find a usable + * Winsock DLL + */ + lwsl_err("WSAStartup failed with error: %d\n", err); + + return 1; +} + +LWS_VISIBLE void +lws_plat_context_early_destroy(struct lws_context *context) +{ + struct lws_context_per_thread *pt = &context->pt[0]; + int n = context->count_threads; + + while (n--) { + if (pt->events) { + WSACloseEvent(pt->events[0]); + lws_free(pt->events); + } + pt++; + } +} + +LWS_VISIBLE void +lws_plat_context_late_destroy(struct lws_context *context) +{ + int n; + + for (n = 0; n < FD_HASHTABLE_MODULUS; n++) { + if (context->fd_hashtable[n].wsi) + lws_free(context->fd_hashtable[n].wsi); + } + + WSACleanup(); +} + +LWS_VISIBLE LWS_EXTERN int +lws_interface_to_sa(int ipv6, + const char *ifname, struct sockaddr_in *addr, size_t addrlen) +{ +#ifdef LWS_WITH_IPV6 + struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)addr; + + if (ipv6) { + if (lws_plat_inet_pton(AF_INET6, ifname, &addr6->sin6_addr) == 1) { + return 0; + } + } +#endif + + long long address = inet_addr(ifname); + + if (address == INADDR_NONE) { + struct hostent *entry = gethostbyname(ifname); + if (entry) + address = ((struct in_addr *)entry->h_addr_list[0])->s_addr; + } + + if (address == INADDR_NONE) + return -1; + + addr->sin_addr.s_addr = (lws_intptr_t)address; + + return 0; +} + +LWS_VISIBLE void +lws_plat_insert_socket_into_fds(struct lws_context *context, struct lws *wsi) +{ + struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi]; + + pt->fds[pt->fds_count++].revents = 0; + pt->events[pt->fds_count] = pt->events[0]; + WSAEventSelect(wsi->desc.sockfd, pt->events[0], + LWS_POLLIN | LWS_POLLHUP | FD_CONNECT); +} + +LWS_VISIBLE void +lws_plat_delete_socket_from_fds(struct lws_context *context, + struct lws *wsi, int m) +{ + struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi]; + + pt->events[m + 1] = pt->events[pt->fds_count--]; +} + +LWS_VISIBLE void +lws_plat_service_periodic(struct lws_context *context) +{ +} + +LWS_VISIBLE int +lws_plat_check_connection_error(struct lws *wsi) +{ + int optVal; + int optLen = sizeof(int); + + if (getsockopt(wsi->desc.sockfd, SOL_SOCKET, SO_ERROR, + (char*)&optVal, &optLen) != SOCKET_ERROR && optVal && + optVal != LWS_EALREADY && optVal != LWS_EINPROGRESS && + optVal != LWS_EWOULDBLOCK && optVal != WSAEINVAL) { + lwsl_debug("Connect failed SO_ERROR=%d\n", optVal); + return 1; + } + + return 0; +} + +LWS_VISIBLE int +lws_plat_change_pollfd(struct lws_context *context, + struct lws *wsi, struct lws_pollfd *pfd) +{ + struct lws_context_per_thread *pt = &context->pt[(int)wsi->tsi]; + long networkevents = LWS_POLLHUP | FD_CONNECT; + + if ((pfd->events & LWS_POLLIN)) + networkevents |= LWS_POLLIN; + + if ((pfd->events & LWS_POLLOUT)) + networkevents |= LWS_POLLOUT; + + if (WSAEventSelect(wsi->desc.sockfd, + pt->events[0], + networkevents) != SOCKET_ERROR) + return 0; + + lwsl_err("WSAEventSelect() failed with error %d\n", LWS_ERRNO); + + return 1; +} + +LWS_VISIBLE const char * +lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt) +{ + WCHAR *buffer; + DWORD bufferlen = cnt; + BOOL ok = FALSE; + + buffer = lws_malloc(bufferlen * 2, "inet_ntop"); + if (!buffer) { + lwsl_err("Out of memory\n"); + return NULL; + } + + if (af == AF_INET) { + struct sockaddr_in srcaddr; + bzero(&srcaddr, sizeof(srcaddr)); + srcaddr.sin_family = AF_INET; + memcpy(&(srcaddr.sin_addr), src, sizeof(srcaddr.sin_addr)); + + if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen)) + ok = TRUE; +#ifdef LWS_WITH_IPV6 + } else if (af == AF_INET6) { + struct sockaddr_in6 srcaddr; + bzero(&srcaddr, sizeof(srcaddr)); + srcaddr.sin6_family = AF_INET6; + memcpy(&(srcaddr.sin6_addr), src, sizeof(srcaddr.sin6_addr)); + + if (!WSAAddressToStringW((struct sockaddr*)&srcaddr, sizeof(srcaddr), 0, buffer, &bufferlen)) + ok = TRUE; +#endif + } else + lwsl_err("Unsupported type\n"); + + if (!ok) { + int rv = WSAGetLastError(); + lwsl_err("WSAAddressToString() : %d\n", rv); + } else { + if (WideCharToMultiByte(CP_ACP, 0, buffer, bufferlen, dst, cnt, 0, NULL) <= 0) + ok = FALSE; + } + + lws_free(buffer); + return ok ? dst : NULL; +} + +LWS_VISIBLE int +lws_plat_inet_pton(int af, const char *src, void *dst) +{ + WCHAR *buffer; + DWORD bufferlen = strlen(src) + 1; + BOOL ok = FALSE; + + buffer = lws_malloc(bufferlen * 2, "inet_pton"); + if (!buffer) { + lwsl_err("Out of memory\n"); + return -1; + } + + if (MultiByteToWideChar(CP_ACP, 0, src, bufferlen, buffer, bufferlen) <= 0) { + lwsl_err("Failed to convert multi byte to wide char\n"); + lws_free(buffer); + return -1; + } + + if (af == AF_INET) { + struct sockaddr_in dstaddr; + int dstaddrlen = sizeof(dstaddr); + bzero(&dstaddr, sizeof(dstaddr)); + dstaddr.sin_family = AF_INET; + + if (!WSAStringToAddressW(buffer, af, 0, (struct sockaddr *) &dstaddr, &dstaddrlen)) { + ok = TRUE; + memcpy(dst, &dstaddr.sin_addr, sizeof(dstaddr.sin_addr)); + } +#ifdef LWS_WITH_IPV6 + } else if (af == AF_INET6) { + struct sockaddr_in6 dstaddr; + int dstaddrlen = sizeof(dstaddr); + bzero(&dstaddr, sizeof(dstaddr)); + dstaddr.sin6_family = AF_INET6; + + if (!WSAStringToAddressW(buffer, af, 0, (struct sockaddr *) &dstaddr, &dstaddrlen)) { + ok = TRUE; + memcpy(dst, &dstaddr.sin6_addr, sizeof(dstaddr.sin6_addr)); + } +#endif + } else + lwsl_err("Unsupported type\n"); + + if (!ok) { + int rv = WSAGetLastError(); + lwsl_err("WSAAddressToString() : %d\n", rv); + } + + lws_free(buffer); + return ok ? 1 : -1; +} + +LWS_VISIBLE lws_fop_fd_t +_lws_plat_file_open(const struct lws_plat_file_ops *fops, const char *filename, + const char *vpath, lws_fop_flags_t *flags) +{ + HANDLE ret; + WCHAR buf[MAX_PATH]; + lws_fop_fd_t fop_fd; + LARGE_INTEGER llFileSize = {0}; + + MultiByteToWideChar(CP_UTF8, 0, filename, -1, buf, ARRAY_SIZE(buf)); + if (((*flags) & 7) == _O_RDONLY) { + ret = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ, + NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + } else { + ret = CreateFileW(buf, GENERIC_WRITE, 0, NULL, + CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); + } + + if (ret == LWS_INVALID_FILE) + goto bail; + + fop_fd = malloc(sizeof(*fop_fd)); + if (!fop_fd) + goto bail; + + fop_fd->fops = fops; + fop_fd->fd = ret; + fop_fd->filesystem_priv = NULL; /* we don't use it */ + fop_fd->flags = *flags; + fop_fd->len = GetFileSize(ret, NULL); + if(GetFileSizeEx(ret, &llFileSize)) + fop_fd->len = llFileSize.QuadPart; + + fop_fd->pos = 0; + + return fop_fd; + +bail: + return NULL; +} + +LWS_VISIBLE int +_lws_plat_file_close(lws_fop_fd_t *fop_fd) +{ + HANDLE fd = (*fop_fd)->fd; + + free(*fop_fd); + *fop_fd = NULL; + + CloseHandle((HANDLE)fd); + + return 0; +} + +LWS_VISIBLE lws_fileofs_t +_lws_plat_file_seek_cur(lws_fop_fd_t fop_fd, lws_fileofs_t offset) +{ + LARGE_INTEGER l; + + l.QuadPart = offset; + return SetFilePointerEx((HANDLE)fop_fd->fd, l, NULL, FILE_CURRENT); +} + +LWS_VISIBLE int +_lws_plat_file_read(lws_fop_fd_t fop_fd, lws_filepos_t *amount, + uint8_t *buf, lws_filepos_t len) +{ + DWORD _amount; + + if (!ReadFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) { + *amount = 0; + + return 1; + } + + fop_fd->pos += _amount; + *amount = (unsigned long)_amount; + + return 0; +} + +LWS_VISIBLE int +_lws_plat_file_write(lws_fop_fd_t fop_fd, lws_filepos_t *amount, + uint8_t* buf, lws_filepos_t len) +{ + DWORD _amount; + + if (!WriteFile((HANDLE)fop_fd->fd, buf, (DWORD)len, &_amount, NULL)) { + *amount = 0; + + return 1; + } + + fop_fd->pos += _amount; + *amount = (unsigned long)_amount; + + return 0; +} + +LWS_VISIBLE int +lws_plat_init(struct lws_context *context, + struct lws_context_creation_info *info) +{ + struct lws_context_per_thread *pt = &context->pt[0]; + int i, n = context->count_threads; + + for (i = 0; i < FD_HASHTABLE_MODULUS; i++) { + context->fd_hashtable[i].wsi = + lws_zalloc(sizeof(struct lws*) * context->max_fds, "win hashtable"); + + if (!context->fd_hashtable[i].wsi) + return -1; + } + + while (n--) { + pt->events = lws_malloc(sizeof(WSAEVENT) * + (context->fd_limit_per_thread + 1), "event table"); + if (pt->events == NULL) { + lwsl_err("Unable to allocate events array for %d connections\n", + context->fd_limit_per_thread + 1); + return 1; + } + + pt->fds_count = 0; + pt->events[0] = WSACreateEvent(); + + pt++; + } + + context->fd_random = 0; + +#ifdef LWS_WITH_PLUGINS + if (info->plugin_dirs) + lws_plat_plugins_init(context, info->plugin_dirs); +#endif + + return 0; +} + + +int kill(int pid, int sig) +{ + lwsl_err("Sorry Windows doesn't support kill()."); + exit(0); +} + +int fork(void) +{ + lwsl_err("Sorry Windows doesn't support fork()."); + exit(0); +} + |