2 * libwebsockets - small server side websockets and web server implementation
4 * Copyright (C) 2010 - 2013 Andy Green <andy@warmcat.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation:
9 * version 2.1 of the License.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
22 /* System introspection configs */
24 #include "lws_config.h"
26 #if defined(WIN32) || defined(_WIN32)
27 #define inline __inline
31 #define vsnprintf _vsnprintf
37 #endif /* not WIN32 */
38 #endif /* not CMAKE */
40 #ifdef HAVE_SYS_TYPES_H
41 #include <sys/types.h>
52 #ifdef HAVE_SYS_STAT_H
56 #if defined(WIN32) || defined(_WIN32)
57 #define LWS_NO_DAEMONIZE
58 #define LWS_ERRNO WSAGetLastError()
59 #define LWS_EAGAIN WSAEWOULDBLOCK
60 #define LWS_EALREADY WSAEALREADY
61 #define LWS_EINPROGRESS WSAEINPROGRESS
62 #define LWS_EINTR WSAEINTR
63 #define LWS_EISCONN WSAEISCONN
64 #define LWS_EWOULDBLOCK WSAEWOULDBLOCK
65 #define LWS_POLLHUP (FD_CLOSE)
66 #define LWS_POLLIN (FD_READ | FD_ACCEPT)
67 #define LWS_POLLOUT (FD_WRITE)
68 #define MSG_NOSIGNAL 0
69 #define SHUT_RDWR SD_BOTH
70 #define SOL_TCP IPPROTO_TCP
72 #define compatible_close(fd) closesocket(fd)
73 #define compatible_file_close(fd) CloseHandle(fd)
74 #define compatible_file_seek_cur(fd, offset) SetFilePointer(fd, offset, NULL, FILE_CURRENT)
75 #define compatible_file_read(amount, fd, buf, len) {\
77 if (!ReadFile(fd, buf, len, &amount, NULL)) \
82 #define lws_set_blocking_send(wsi) wsi->sock_send_blocking = TRUE
85 #define LWS_INVALID_FILE INVALID_HANDLE_VALUE
86 const char *inet_ntop(int af, const void *src, char *dst, int cnt);
87 #else /* not windows --> */
94 #include <sys/types.h>
95 #include <sys/socket.h>
96 #ifdef LWS_BUILTIN_GETIFADDRS
97 #include <getifaddrs.h>
101 #include <sys/syslog.h>
103 #include <sys/socket.h>
106 #ifdef HAVE_SYS_PRCTL_H
107 #include <sys/prctl.h>
110 #include <netinet/in.h>
111 #include <netinet/tcp.h>
112 #include <arpa/inet.h>
116 #endif /* LWS_USE_LIBEV */
118 #include <sys/mman.h>
119 #include <sys/time.h>
121 #define LWS_ERRNO errno
122 #define LWS_EAGAIN EAGAIN
123 #define LWS_EALREADY EALREADY
124 #define LWS_EINPROGRESS EINPROGRESS
125 #define LWS_EINTR EINTR
126 #define LWS_EISCONN EISCONN
127 #define LWS_EWOULDBLOCK EWOULDBLOCK
128 #define LWS_INVALID_FILE -1
129 #define LWS_POLLHUP (POLLHUP|POLLERR)
130 #define LWS_POLLIN (POLLIN)
131 #define LWS_POLLOUT (POLLOUT)
132 #define compatible_close(fd) close(fd)
133 #define compatible_file_close(fd) close(fd)
134 #define compatible_file_seek_cur(fd, offset) lseek(fd, offset, SEEK_CUR)
135 #define compatible_file_read(amount, fd, buf, len) \
136 amount = read(fd, buf, len);
137 #define lws_set_blocking_send(wsi)
141 #define bzero(b, len) (memset((b), '\0', (len)), (void) 0)
144 #ifndef HAVE_STRERROR
145 #define strerror(x) ""
148 #ifdef LWS_OPENSSL_SUPPORT
150 #include <cyassl/openssl/ssl.h>
151 #include <cyassl/error.h>
153 SHA1(const unsigned char *d, size_t n, unsigned char *md);
155 #include <openssl/ssl.h>
156 #include <openssl/evp.h>
157 #include <openssl/err.h>
158 #include <openssl/md5.h>
159 #include <openssl/sha.h>
160 #endif /* not USE_CYASSL */
163 #include "libwebsockets.h"
165 #if defined(WIN32) || defined(_WIN32)
168 #define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */
170 #ifndef LITTLE_ENDIAN
171 #define LITTLE_ENDIAN 1234
174 #define BYTE_ORDER LITTLE_ENDIAN
176 typedef unsigned __int64 u_int64_t;
181 #define __P(protos) protos
183 #define __P(protos) ()
189 #include <sys/stat.h>
190 #include <sys/cdefs.h>
191 #include <sys/time.h>
193 #if defined(__APPLE__)
194 #include <machine/endian.h>
195 #elif defined(__FreeBSD__)
196 #include <sys/endian.h>
197 #elif defined(__linux__)
201 #if !defined(BYTE_ORDER)
202 # define BYTE_ORDER __BYTE_ORDER
204 #if !defined(LITTLE_ENDIAN)
205 # define LITTLE_ENDIAN __LITTLE_ENDIAN
207 #if !defined(BIG_ENDIAN)
208 # define BIG_ENDIAN __BIG_ENDIAN
214 * Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag,
215 * but happily have something equivalent in the SO_NOSIGPIPE flag.
218 #define MSG_NOSIGNAL SO_NOSIGPIPE
221 #ifndef LWS_MAX_HEADER_LEN
222 #define LWS_MAX_HEADER_LEN 1024
224 #ifndef LWS_MAX_PROTOCOLS
225 #define LWS_MAX_PROTOCOLS 5
227 #ifndef LWS_MAX_EXTENSIONS_ACTIVE
228 #define LWS_MAX_EXTENSIONS_ACTIVE 3
230 #ifndef SPEC_LATEST_SUPPORTED
231 #define SPEC_LATEST_SUPPORTED 13
233 #ifndef AWAITING_TIMEOUT
234 #define AWAITING_TIMEOUT 5
236 #ifndef CIPHERS_LIST_STRING
237 #define CIPHERS_LIST_STRING "DEFAULT"
239 #ifndef LWS_SOMAXCONN
240 #define LWS_SOMAXCONN SOMAXCONN
243 #define MAX_WEBSOCKET_04_KEY_LEN 128
244 #define LWS_MAX_SOCKET_IO_BUF 4096
246 #ifndef SYSTEM_RANDOM_FILEPATH
247 #define SYSTEM_RANDOM_FILEPATH "/dev/urandom"
249 #ifndef LWS_MAX_ZLIB_CONN_BUFFER
250 #define LWS_MAX_ZLIB_CONN_BUFFER (64 * 1024)
254 * if not in a connection storm, check for incoming
255 * connections this many normal connection services
257 #define LWS_LISTEN_SERVICE_MODULO 10
259 enum lws_websocket_opcodes_07 {
260 LWS_WS_OPCODE_07__CONTINUATION = 0,
261 LWS_WS_OPCODE_07__TEXT_FRAME = 1,
262 LWS_WS_OPCODE_07__BINARY_FRAME = 2,
264 LWS_WS_OPCODE_07__NOSPEC__MUX = 7,
266 /* control extensions 8+ */
268 LWS_WS_OPCODE_07__CLOSE = 8,
269 LWS_WS_OPCODE_07__PING = 9,
270 LWS_WS_OPCODE_07__PONG = 0xa,
274 enum lws_connection_states {
276 WSI_STATE_HTTP_ISSUING_FILE,
277 WSI_STATE_HTTP_HEADERS,
279 WSI_STATE_DEAD_SOCKET,
280 WSI_STATE_ESTABLISHED,
281 WSI_STATE_CLIENT_UNCONNECTED,
282 WSI_STATE_RETURNED_CLOSE_ALREADY,
283 WSI_STATE_AWAITING_CLOSE_ACK,
286 enum lws_rx_parse_state {
289 LWS_RXPS_04_MASK_NONCE_1,
290 LWS_RXPS_04_MASK_NONCE_2,
291 LWS_RXPS_04_MASK_NONCE_3,
293 LWS_RXPS_04_FRAME_HDR_1,
294 LWS_RXPS_04_FRAME_HDR_LEN,
295 LWS_RXPS_04_FRAME_HDR_LEN16_2,
296 LWS_RXPS_04_FRAME_HDR_LEN16_1,
297 LWS_RXPS_04_FRAME_HDR_LEN64_8,
298 LWS_RXPS_04_FRAME_HDR_LEN64_7,
299 LWS_RXPS_04_FRAME_HDR_LEN64_6,
300 LWS_RXPS_04_FRAME_HDR_LEN64_5,
301 LWS_RXPS_04_FRAME_HDR_LEN64_4,
302 LWS_RXPS_04_FRAME_HDR_LEN64_3,
303 LWS_RXPS_04_FRAME_HDR_LEN64_2,
304 LWS_RXPS_04_FRAME_HDR_LEN64_1,
306 LWS_RXPS_07_COLLECT_FRAME_KEY_1,
307 LWS_RXPS_07_COLLECT_FRAME_KEY_2,
308 LWS_RXPS_07_COLLECT_FRAME_KEY_3,
309 LWS_RXPS_07_COLLECT_FRAME_KEY_4,
311 LWS_RXPS_PAYLOAD_UNTIL_LENGTH_EXHAUSTED
315 enum connection_mode {
316 LWS_CONNMODE_HTTP_SERVING,
317 LWS_CONNMODE_HTTP_SERVING_ACCEPTED, /* actual HTTP service going on */
318 LWS_CONNMODE_PRE_WS_SERVING_ACCEPT,
320 LWS_CONNMODE_WS_SERVING,
321 LWS_CONNMODE_WS_CLIENT,
323 /* transient, ssl delay hiding */
324 LWS_CONNMODE_SSL_ACK_PENDING,
326 /* transient modes */
327 LWS_CONNMODE_WS_CLIENT_WAITING_CONNECT,
328 LWS_CONNMODE_WS_CLIENT_WAITING_PROXY_REPLY,
329 LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE,
330 LWS_CONNMODE_WS_CLIENT_ISSUE_HANDSHAKE2,
331 LWS_CONNMODE_WS_CLIENT_WAITING_SSL,
332 LWS_CONNMODE_WS_CLIENT_WAITING_SERVER_REPLY,
333 LWS_CONNMODE_WS_CLIENT_WAITING_EXTENSION_CONNECT,
334 LWS_CONNMODE_WS_CLIENT_PENDING_CANDIDATE_CHILD,
336 /* special internal types */
337 LWS_CONNMODE_SERVER_LISTENER,
341 LWS_RXFLOW_ALLOW = (1 << 0),
342 LWS_RXFLOW_PENDING_CHANGE = (1 << 1),
345 struct libwebsocket_protocols;
349 struct lws_io_watcher {
350 struct ev_io watcher;
351 struct libwebsocket_context* context;
354 struct lws_signal_watcher {
355 struct ev_signal watcher;
356 struct libwebsocket_context* context;
358 #endif /* LWS_USE_LIBEV */
360 struct libwebsocket_context {
364 struct libwebsocket_pollfd *fds;
365 struct libwebsocket **lws_lookup; /* fd to wsi */
368 struct ev_loop* io_loop;
369 struct lws_io_watcher w_accept;
370 struct lws_signal_watcher w_sigint;
371 #endif /* LWS_USE_LIBEV */
375 char http_proxy_address[128];
376 char canonical_hostname[128];
377 unsigned int http_proxy_port;
378 unsigned int options;
379 time_t last_timeout_check_s;
382 * usable by anything in the service code, but only if the scope
383 * does not last longer than the service action (since next service
384 * of any socket can likewise use it and overwrite)
386 unsigned char service_buffer[LWS_MAX_SOCKET_IO_BUF];
388 int started_with_parent;
391 int listen_service_modulo;
392 int listen_service_count;
393 int listen_service_fd;
394 int listen_service_extraseen;
397 * set to the Thread ID that's doing the service loop just before entry
398 * to poll indicates service thread likely idling in poll()
399 * volatile because other threads may check it as part of processing
400 * for pollfd event change.
402 volatile int service_tid;
404 int dummy_pipe_fds[2];
412 unsigned long worst_latency;
413 char worst_latency_info[256];
416 #ifdef LWS_OPENSSL_SUPPORT
418 int allow_non_ssl_on_ssl_port;
420 SSL_CTX *ssl_client_ctx;
422 struct libwebsocket_protocols *protocols;
424 #ifndef LWS_NO_EXTENSIONS
425 struct libwebsocket_extension *extensions;
431 #define LWS_LIBEV_ENABLED(context) (context->options & LWS_SERVER_OPTION_LIBEV)
433 #define LWS_LIBEV_ENABLED(context) (0)
437 #define LWS_IPV6_ENABLED(context) (!(context->options & LWS_SERVER_OPTION_DISABLE_IPV6))
439 #define LWS_IPV6_ENABLED(context) (0)
442 enum uri_path_states {
445 URIPS_SEEN_SLASH_DOT,
446 URIPS_SEEN_SLASH_DOT_DOT,
450 enum uri_esc_states {
453 URIES_SEEN_PERCENT_H1,
457 * This is totally opaque to code using the library. It's exported as a
458 * forward-reference pointer-only declaration; the user can use the pointer with
459 * other APIs to get information out of it.
462 struct lws_fragments {
463 unsigned short offset;
465 unsigned char next_frag_index;
468 struct allocated_headers {
469 unsigned short next_frag_index;
471 unsigned char frag_index[WSI_TOKEN_COUNT];
472 struct lws_fragments frags[WSI_TOKEN_COUNT * 2];
473 char data[LWS_MAX_HEADER_LEN];
474 #ifndef LWS_NO_CLIENT
475 char initial_handshake_hash_base64[30];
476 unsigned short c_port;
480 struct _lws_http_mode_related {
481 struct allocated_headers *ah; /* mirroring _lws_header_related */
482 #if defined(WIN32) || defined(_WIN32)
487 unsigned long filepos;
488 unsigned long filelen;
491 int content_length_seen;
493 unsigned char *post_buffer;
496 struct _lws_header_related {
497 struct allocated_headers *ah;
499 unsigned char parser_state; /* enum lws_token_indexes */
500 enum uri_path_states ups;
501 enum uri_esc_states ues;
505 struct _lws_websocket_related {
506 char *rx_user_buffer;
507 int rx_user_buffer_head;
508 unsigned char frame_masking_nonce_04[4];
509 unsigned char frame_mask_index;
510 size_t rx_packet_length;
511 unsigned char opcode;
512 unsigned int final:1;
514 unsigned int frame_is_binary:1;
515 unsigned int all_zero_nonce:1;
516 short close_reason; /* enum lws_close_status */
517 unsigned char *rxflow_buffer;
520 unsigned int rxflow_change_to:2;
521 unsigned int this_frame_masked:1;
522 unsigned int inside_frame:1; /* next write will be more of frame */
523 unsigned int clean_buffer:1; /* buffer not rewritten by extension */
526 struct libwebsocket {
528 /* lifetime members */
531 struct lws_io_watcher w_read;
532 struct lws_io_watcher w_write;
533 #endif /* LWS_USE_LIBEV */
534 const struct libwebsocket_protocols *protocol;
535 #ifndef LWS_NO_EXTENSIONS
536 struct libwebsocket_extension *
537 active_extensions[LWS_MAX_EXTENSIONS_ACTIVE];
538 void *active_extensions_user[LWS_MAX_EXTENSIONS_ACTIVE];
539 unsigned char count_active_extensions;
540 unsigned int extension_data_pending:1;
542 unsigned char ietf_spec_revision;
544 char mode; /* enum connection_mode */
545 char state; /* enum lws_connection_states */
546 char lws_rx_parse_state; /* enum lws_rx_parse_state */
547 char rx_frame_type; /* enum libwebsocket_write_protocol */
549 unsigned int hdr_parsing_completed:1;
551 char pending_timeout; /* enum pending_timeout */
552 time_t pending_timeout_limit;
555 int position_in_fds_table;
557 unsigned long action_start;
558 unsigned long latency_start;
561 /* truncated send handling */
562 unsigned char *truncated_send_malloc; /* non-NULL means buffering in progress */
563 unsigned int truncated_send_allocation; /* size of malloc */
564 unsigned int truncated_send_offset; /* where we are in terms of spilling */
565 unsigned int truncated_send_len; /* how much is buffered */
569 /* members with mutually exclusive lifetimes are unionized */
572 struct _lws_http_mode_related http;
573 struct _lws_header_related hdr;
574 struct _lws_websocket_related ws;
577 #ifdef LWS_OPENSSL_SUPPORT
580 unsigned int use_ssl:2;
584 BOOL sock_send_blocking;
588 LWS_EXTERN int log_level;
591 libwebsocket_close_and_free_session(struct libwebsocket_context *context,
592 struct libwebsocket *wsi, enum lws_close_status);
595 remove_wsi_socket_from_fds(struct libwebsocket_context *context,
596 struct libwebsocket *wsi);
599 static inline void lws_latency(struct libwebsocket_context *context,
600 struct libwebsocket *wsi, const char *action,
601 int ret, int completion) { while (0); }
602 static inline void lws_latency_pre(struct libwebsocket_context *context,
603 struct libwebsocket *wsi) { while (0); }
605 #define lws_latency_pre(_context, _wsi) lws_latency(_context, _wsi, NULL, 0, 0)
607 lws_latency(struct libwebsocket_context *context,
608 struct libwebsocket *wsi, const char *action,
609 int ret, int completion);
613 libwebsocket_client_rx_sm(struct libwebsocket *wsi, unsigned char c);
616 libwebsocket_parse(struct libwebsocket *wsi, unsigned char c);
619 libwebsocket_interpret_incoming_packet(struct libwebsocket *wsi,
620 unsigned char *buf, size_t len);
623 lws_b64_selftest(void);
625 LWS_EXTERN struct libwebsocket *
626 wsi_from_fd(struct libwebsocket_context *context, int fd);
629 insert_wsi_socket_into_fds(struct libwebsocket_context *context,
630 struct libwebsocket *wsi);
633 lws_issue_raw(struct libwebsocket *wsi, unsigned char *buf, size_t len);
637 libwebsocket_service_timeout_check(struct libwebsocket_context *context,
638 struct libwebsocket *wsi, unsigned int sec);
640 LWS_EXTERN struct libwebsocket *
641 libwebsocket_client_connect_2(struct libwebsocket_context *context,
642 struct libwebsocket *wsi);
644 LWS_EXTERN struct libwebsocket *
645 libwebsocket_create_new_server_wsi(struct libwebsocket_context *context);
648 libwebsockets_generate_client_handshake(struct libwebsocket_context *context,
649 struct libwebsocket *wsi, char *pkt);
652 lws_handle_POLLOUT_event(struct libwebsocket_context *context,
653 struct libwebsocket *wsi, struct libwebsocket_pollfd *pollfd);
654 #ifndef LWS_NO_EXTENSIONS
656 lws_any_extension_handled(struct libwebsocket_context *context,
657 struct libwebsocket *wsi,
658 enum libwebsocket_extension_callback_reasons r,
659 void *v, size_t len);
662 lws_ext_callback_for_each_active(struct libwebsocket *wsi, int reason,
665 lws_ext_callback_for_each_extension_type(
666 struct libwebsocket_context *context, struct libwebsocket *wsi,
667 int reason, void *arg, int len);
669 #define lws_any_extension_handled(_a, _b, _c, _d, _e) (0)
670 #define lws_ext_callback_for_each_active(_a, _b, _c, _d) (0)
671 #define lws_ext_callback_for_each_extension_type(_a, _b, _c, _d, _e) (0)
672 #define lws_issue_raw_ext_access lws_issue_raw
676 lws_client_interpret_server_handshake(struct libwebsocket_context *context,
677 struct libwebsocket *wsi);
680 libwebsocket_rx_sm(struct libwebsocket *wsi, unsigned char c);
683 lws_issue_raw_ext_access(struct libwebsocket *wsi,
684 unsigned char *buf, size_t len);
687 _libwebsocket_rx_flow_control(struct libwebsocket *wsi);
690 user_callback_handle_rxflow(callback_function,
691 struct libwebsocket_context *context,
692 struct libwebsocket *wsi,
693 enum libwebsocket_callback_reasons reason, void *user,
694 void *in, size_t len);
697 lws_plat_set_socket_options(struct libwebsocket_context *context, int fd);
700 lws_allocate_header_table(struct libwebsocket *wsi);
703 lws_hdr_simple_ptr(struct libwebsocket *wsi, enum lws_token_indexes h);
706 lws_hdr_simple_create(struct libwebsocket *wsi,
707 enum lws_token_indexes h, const char *s);
710 libwebsocket_ensure_user_space(struct libwebsocket *wsi);
713 lws_change_pollfd(struct libwebsocket *wsi, int _and, int _or);
715 #ifndef LWS_NO_SERVER
716 int lws_context_init_server(struct lws_context_creation_info *info,
717 struct libwebsocket_context *context);
718 LWS_EXTERN int handshake_0405(struct libwebsocket_context *context,
719 struct libwebsocket *wsi);
721 #define lws_context_init_server(_a, _b) (0)
724 #ifndef LWS_NO_DAEMONIZE
725 LWS_EXTERN int get_daemonize_pid();
728 LWS_EXTERN int interface_to_sa(struct libwebsocket_context *context,
729 const char *ifname, struct sockaddr_in *addr, size_t addrlen);
731 LWS_EXTERN void lwsl_emit_stderr(int level, const char *line);
734 LWS_EXTERN HANDLE lws_plat_open_file(const char* filename, unsigned long* filelen);
736 LWS_EXTERN int lws_plat_open_file(const char* filename, unsigned long* filelen);
739 #ifndef LWS_OPENSSL_SUPPORT
742 SHA1(const unsigned char *d, size_t n, unsigned char *md);
743 #define lws_context_init_server_ssl(_a, _b) (0)
744 #define lws_ssl_destroy(_a)
745 #define lws_context_init_http2_ssl(_a)
746 #define lws_ssl_pending(_a) (0)
747 #define lws_ssl_capable_read lws_ssl_capable_read_no_ssl
748 #define lws_ssl_capable_write lws_ssl_capable_write_no_ssl
750 LWS_EXTERN int lws_ssl_pending(struct libwebsocket *wsi);
751 LWS_EXTERN int openssl_websocket_private_data_index;
753 lws_ssl_capable_read(struct libwebsocket *wsi, unsigned char *buf, int len);
756 lws_ssl_capable_write(struct libwebsocket *wsi, unsigned char *buf, int len);
758 #ifndef LWS_NO_SERVER
760 lws_context_init_server_ssl(struct lws_context_creation_info *info,
761 struct libwebsocket_context *context);
763 #define lws_context_init_server_ssl(_a, _b) (0)
766 lws_ssl_destroy(struct libwebsocket_context *context);
768 enum lws_ssl_capable_status {
769 LWS_SSL_CAPABLE_ERROR = -1,
770 LWS_SSL_CAPABLE_MORE_SERVICE = -2,
774 lws_ssl_capable_read_no_ssl(struct libwebsocket *wsi, unsigned char *buf, int len);
777 lws_ssl_capable_write_no_ssl(struct libwebsocket *wsi, unsigned char *buf, int len);
783 lws_context_init_http2_ssl(struct libwebsocket_context *context);
785 #define lws_context_init_http2_ssl(_a)
789 #ifndef LWS_NO_CLIENT
790 LWS_EXTERN int lws_client_socket_service(
791 struct libwebsocket_context *context,
792 struct libwebsocket *wsi, struct libwebsocket_pollfd *pollfd);
793 #ifdef LWS_OPENSSL_SUPPORT
794 LWS_EXTERN int lws_context_init_client_ssl(struct lws_context_creation_info *info,
795 struct libwebsocket_context *context);
797 #define lws_context_init_client_ssl(_a, _b) (0)
799 LWS_EXTERN int lws_handshake_client(struct libwebsocket *wsi, unsigned char **buf, size_t len);
801 libwebsockets_decode_ssl_error(void);
803 #define lws_context_init_client_ssl(_a, _b) (0)
804 #define lws_handshake_client(_a, _b, _c) (0)
806 #ifndef LWS_NO_SERVER
807 LWS_EXTERN int lws_server_socket_service(
808 struct libwebsocket_context *context,
809 struct libwebsocket *wsi, struct libwebsocket_pollfd *pollfd);
810 LWS_EXTERN int _libwebsocket_rx_flow_control(struct libwebsocket *wsi);
811 LWS_EXTERN int lws_handshake_server(struct libwebsocket_context *context,
812 struct libwebsocket *wsi, unsigned char **buf, size_t len);
814 #define lws_server_socket_service(_a, _b, _c) (0)
815 #define _libwebsocket_rx_flow_control(_a) (0)
816 #define lws_handshake_server(_a, _b, _c, _d) (0)
823 lws_plat_delete_socket_from_fds(struct libwebsocket_context *context,
824 struct libwebsocket *wsi, int m);
826 lws_plat_insert_socket_into_fds(struct libwebsocket_context *context,
827 struct libwebsocket *wsi);
829 lws_plat_service_periodic(struct libwebsocket_context *context);
832 lws_plat_change_pollfd(struct libwebsocket_context *context,
833 struct libwebsocket *wsi, struct libwebsocket_pollfd *pfd);
835 lws_plat_context_early_init(void);
837 lws_plat_context_early_destroy(struct libwebsocket_context *context);
839 lws_plat_context_late_destroy(struct libwebsocket_context *context);
841 lws_poll_listen_fd(struct libwebsocket_pollfd *fd);
843 lws_plat_service(struct libwebsocket_context *context, int timeout_ms);
845 lws_plat_init_fd_tables(struct libwebsocket_context *context);
847 lws_plat_drop_app_privileges(struct lws_context_creation_info *info);
848 LWS_EXTERN unsigned long long
849 time_in_microseconds(void);
850 LWS_EXTERN const char *
851 lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt);