diff options
Diffstat (limited to 'thirdparty/lws/private-libwebsockets.h')
| -rw-r--r-- | thirdparty/lws/private-libwebsockets.h | 2615 |
1 files changed, 0 insertions, 2615 deletions
diff --git a/thirdparty/lws/private-libwebsockets.h b/thirdparty/lws/private-libwebsockets.h deleted file mode 100644 index 535fa0be57..0000000000 --- a/thirdparty/lws/private-libwebsockets.h +++ /dev/null @@ -1,2615 +0,0 @@ -/* - * libwebsockets - small server side websockets and web server implementation - * - * Copyright (C) 2010 - 2016 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 "lws_config.h" -#include "lws_config_private.h" - - -#if defined(LWS_WITH_CGI) && defined(LWS_HAVE_VFORK) -#define _GNU_SOURCE -#endif - -#if defined(__COVERITY__) -typedef struct { long double x, y; } _Float128; -#endif - -#ifdef LWS_HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <ctype.h> -#include <limits.h> -#include <stdarg.h> -#include <inttypes.h> - -#if defined(LWS_WITH_ESP32) -#define MSG_NOSIGNAL 0 -#define SOMAXCONN 3 -#endif - -#if defined(LWS_WITH_ESP8266) -#include <user_interface.h> -#define assert(n) - -/* rom-provided stdc functions for free, ensure use these instead of libc ones */ - -int ets_vsprintf(char *str, const char *format, va_list argptr); -int ets_vsnprintf(char *buffer, size_t sizeOfBuffer, const char *format, va_list argptr); -int ets_snprintf(char *str, size_t size, const char *format, ...); -int ets_sprintf(char *str, const char *format, ...); -int os_printf_plus(const char *format, ...); -#undef malloc -#undef realloc -#undef free -void *pvPortMalloc(size_t s, const char *f, int line); -#define malloc(s) pvPortMalloc(s, "", 0) -void *pvPortRealloc(void *p, size_t s, const char *f, int line); -#define realloc(p, s) pvPortRealloc(p, s, "", 0) -void vPortFree(void *p, const char *f, int line); -#define free(p) vPortFree(p, "", 0) -#undef memcpy -void *ets_memcpy(void *dest, const void *src, size_t n); -#define memcpy ets_memcpy -void *ets_memset(void *dest, int v, size_t n); -#define memset ets_memset -char *ets_strcpy(char *dest, const char *src); -#define strcpy ets_strcpy -char *ets_strncpy(char *dest, const char *src, size_t n); -#define strncpy ets_strncpy -char *ets_strstr(const char *haystack, const char *needle); -#define strstr ets_strstr -int ets_strcmp(const char *s1, const char *s2); -int ets_strncmp(const char *s1, const char *s2, size_t n); -#define strcmp ets_strcmp -#define strncmp ets_strncmp -size_t ets_strlen(const char *s); -#define strlen ets_strlen -void *ets_memmove(void *dest, const void *src, size_t n); -#define memmove ets_memmove -char *ets_strchr(const char *s, int c); -#define strchr_ets_strchr -#undef _DEBUG -#include <osapi.h> - -#else -#define STORE_IN_ROM -#include <assert.h> -#endif -#if LWS_MAX_SMP > 1 -#include <pthread.h> -#endif - -#ifdef LWS_HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif - -#if defined(WIN32) || defined(_WIN32) - -#ifndef WIN32_LEAN_AND_MEAN -#define WIN32_LEAN_AND_MEAN -#endif - -#if (WINVER < 0x0501) -#undef WINVER -#undef _WIN32_WINNT -#define WINVER 0x0501 -#define _WIN32_WINNT WINVER -#endif -#define LWS_NO_DAEMONIZE -#define LWS_ERRNO WSAGetLastError() -#define LWS_EAGAIN WSAEWOULDBLOCK -#define LWS_EALREADY WSAEALREADY -#define LWS_EINPROGRESS WSAEINPROGRESS -#define LWS_EINTR WSAEINTR -#define LWS_EISCONN WSAEISCONN -#define LWS_EWOULDBLOCK WSAEWOULDBLOCK -#define MSG_NOSIGNAL 0 -#define SHUT_RDWR SD_BOTH -#define SOL_TCP IPPROTO_TCP -#define SHUT_WR SD_SEND - -#define compatible_close(fd) closesocket(fd) -#define lws_set_blocking_send(wsi) wsi->sock_send_blocking = 1 -#define lws_socket_is_valid(x) (!!x) -#define LWS_SOCK_INVALID 0 -#include <winsock2.h> -#include <ws2tcpip.h> -#include <windows.h> -#include <tchar.h> -#ifdef LWS_HAVE_IN6ADDR_H -#include <in6addr.h> -#endif -#include <mstcpip.h> -#include <io.h> - -#if !defined(LWS_HAVE_ATOLL) -#if defined(LWS_HAVE__ATOI64) -#define atoll _atoi64 -#else -#warning No atoll or _atoi64 available, using atoi -#define atoll atoi -#endif -#endif - -#ifndef __func__ -#define __func__ __FUNCTION__ -#endif - -#ifdef LWS_HAVE__VSNPRINTF -#define vsnprintf _vsnprintf -#endif - -/* we don't have an implementation for this on windows... */ -int kill(int pid, int sig); -int fork(void); -#ifndef SIGINT -#define SIGINT 2 -#endif - -#else /* not windows --> */ - -#include <fcntl.h> -#include <strings.h> -#include <unistd.h> -#include <sys/types.h> - -#ifndef __cplusplus -#include <errno.h> -#endif -#include <netdb.h> -#include <signal.h> -#ifdef LWS_WITH_ESP8266 -#include <sockets.h> -#define vsnprintf ets_vsnprintf -#define snprintf ets_snprintf -#define sprintf ets_sprintf - -int kill(int pid, int sig); - -#else -#include <sys/socket.h> -#endif -#ifdef LWS_WITH_HTTP_PROXY -#include <hubbub/hubbub.h> -#include <hubbub/parser.h> -#endif -#if defined(LWS_BUILTIN_GETIFADDRS) - #include "./misc/getifaddrs.h" -#else - #if !defined(LWS_WITH_ESP8266) && !defined(LWS_WITH_ESP32) - #if defined(__HAIKU__) - #define _BSD_SOURCE - #endif - #include <ifaddrs.h> - #endif -#endif -#if defined (__ANDROID__) -#include <syslog.h> -#include <sys/resource.h> -#elif defined (__sun) || defined(__HAIKU__) -#include <syslog.h> -#else -#if !defined(LWS_WITH_ESP8266) && !defined(LWS_WITH_ESP32) -#include <sys/syslog.h> -#endif -#endif -#include <netdb.h> -#if !defined(LWS_WITH_ESP8266) && !defined(LWS_WITH_ESP32) -#include <sys/mman.h> -#include <sys/un.h> -#include <netinet/in.h> -#include <netinet/tcp.h> -#include <arpa/inet.h> -#include <poll.h> -#endif -#ifdef LWS_WITH_LIBEV -#include <ev.h> -#endif -#ifdef LWS_WITH_LIBUV -#include <uv.h> -#endif -#ifdef LWS_WITH_LIBEVENT -#include <event2/event.h> -#endif - -#ifndef LWS_NO_FORK -#ifdef LWS_HAVE_SYS_PRCTL_H -#include <sys/prctl.h> -#endif -#endif - -#include <sys/time.h> - -#define LWS_ERRNO errno -#define LWS_EAGAIN EAGAIN -#define LWS_EALREADY EALREADY -#define LWS_EINPROGRESS EINPROGRESS -#define LWS_EINTR EINTR -#define LWS_EISCONN EISCONN -#define LWS_EWOULDBLOCK EWOULDBLOCK - -#define lws_set_blocking_send(wsi) - -#if defined(LWS_WITH_ESP8266) -#define lws_socket_is_valid(x) ((x) != NULL) -#define LWS_SOCK_INVALID (NULL) -struct lws; -const char * -lws_plat_get_peer_simple(struct lws *wsi, char *name, int namelen); -#else -#define lws_socket_is_valid(x) (x >= 0) -#define LWS_SOCK_INVALID (-1) -#endif -#endif - -#ifndef LWS_HAVE_BZERO -#ifndef bzero -#define bzero(b, len) (memset((b), '\0', (len)), (void) 0) -#endif -#endif - -#ifndef LWS_HAVE_STRERROR -#define strerror(x) "" -#endif - -#ifdef LWS_OPENSSL_SUPPORT - -#ifdef USE_WOLFSSL -#ifdef USE_OLD_CYASSL -#include <cyassl/openssl/ssl.h> -#include <cyassl/error-ssl.h> -#else -#include <wolfssl/openssl/ssl.h> -#include <wolfssl/error-ssl.h> -#define OPENSSL_NO_TLSEXT -#endif /* not USE_OLD_CYASSL */ -#else -#if defined(LWS_WITH_ESP32) -#define OPENSSL_NO_TLSEXT -#else -#if defined(LWS_WITH_MBEDTLS) -#include <mbedtls/ssl.h> -#include <mbedtls/x509_crt.h> -#else -#include <openssl/ssl.h> -#include <openssl/evp.h> -#include <openssl/err.h> -#include <openssl/md5.h> -#include <openssl/sha.h> -#ifdef LWS_HAVE_OPENSSL_ECDH_H -#include <openssl/ecdh.h> -#endif -#include <openssl/x509v3.h> -#endif -#if defined(OPENSSL_VERSION_NUMBER) -#if (OPENSSL_VERSION_NUMBER < 0x0009080afL) -/* later openssl defines this to negate the presence of tlsext... but it was only - * introduced at 0.9.8j. Earlier versions don't know it exists so don't - * define it... making it look like the feature exists... - */ -#define OPENSSL_NO_TLSEXT -#endif -#endif -#endif /* not ESP32 */ -#endif /* not USE_WOLFSSL */ -#endif - -#include "libwebsockets.h" -#if defined(WIN32) || defined(_WIN32) -#else -static inline int compatible_close(int fd) { return close(fd); } -#endif - -#if defined(WIN32) || defined(_WIN32) -#include <gettimeofday.h> -#endif - -#if defined(LWS_WITH_ESP8266) -#undef compatible_close -#define compatible_close(fd) { fd->state=ESPCONN_CLOSE; espconn_delete(fd); } -lws_sockfd_type -esp8266_create_tcp_stream_socket(void); -void -esp8266_tcp_stream_bind(lws_sockfd_type fd, int port, struct lws *wsi); -#ifndef BIG_ENDIAN -#define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */ -#endif -#ifndef LITTLE_ENDIAN -#define LITTLE_ENDIAN 1234 -#endif -#ifndef BYTE_ORDER -#define BYTE_ORDER LITTLE_ENDIAN -#endif -#endif - - -#if defined(WIN32) || defined(_WIN32) - -#ifndef BIG_ENDIAN -#define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */ -#endif -#ifndef LITTLE_ENDIAN -#define LITTLE_ENDIAN 1234 -#endif -#ifndef BYTE_ORDER -#define BYTE_ORDER LITTLE_ENDIAN -#endif - -#undef __P -#ifndef __P -#if __STDC__ -#define __P(protos) protos -#else -#define __P(protos) () -#endif -#endif - -#else - -#include <sys/stat.h> -#include <sys/time.h> - -#if defined(__APPLE__) -#include <machine/endian.h> -#elif defined(__FreeBSD__) -#include <sys/endian.h> -#elif defined(__linux__) -#include <endian.h> -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -#if defined(__QNX__) - #include <gulliver.h> - #if defined(__LITTLEENDIAN__) - #define BYTE_ORDER __LITTLEENDIAN__ - #define LITTLE_ENDIAN __LITTLEENDIAN__ - #define BIG_ENDIAN 4321 /* to show byte order (taken from gcc); for suppres warning that BIG_ENDIAN is not defined. */ - #endif - #if defined(__BIGENDIAN__) - #define BYTE_ORDER __BIGENDIAN__ - #define LITTLE_ENDIAN 1234 /* to show byte order (taken from gcc); for suppres warning that LITTLE_ENDIAN is not defined. */ - #define BIG_ENDIAN __BIGENDIAN__ - #endif -#endif - -#if defined(__sun) && defined(__GNUC__) - -#include <arpa/nameser_compat.h> - -#if !defined (BYTE_ORDER) -# define BYTE_ORDER __BYTE_ORDER__ -#endif - -#if !defined(LITTLE_ENDIAN) -# define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__ -#endif - -#if !defined(BIG_ENDIAN) -# define BIG_ENDIAN __ORDER_BIG_ENDIAN__ -#endif - -#endif /* sun + GNUC */ - -#if !defined(BYTE_ORDER) -# define BYTE_ORDER __BYTE_ORDER -#endif -#if !defined(LITTLE_ENDIAN) -# define LITTLE_ENDIAN __LITTLE_ENDIAN -#endif -#if !defined(BIG_ENDIAN) -# define BIG_ENDIAN __BIG_ENDIAN -#endif - -#endif - -/* - * Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag, - * but happily have something equivalent in the SO_NOSIGPIPE flag. - */ -#ifdef __APPLE__ -#define MSG_NOSIGNAL SO_NOSIGPIPE -#endif - -/* - * Solaris 11.X only supports POSIX 2001, MSG_NOSIGNAL appears in - * POSIX 2008. - */ -#ifdef __sun -#define MSG_NOSIGNAL 0 -#endif - -#ifdef _WIN32 -#ifndef FD_HASHTABLE_MODULUS -#define FD_HASHTABLE_MODULUS 32 -#endif -#endif - -#ifndef LWS_DEF_HEADER_LEN -#define LWS_DEF_HEADER_LEN 4096 -#endif -#ifndef LWS_DEF_HEADER_POOL -#define LWS_DEF_HEADER_POOL 4 -#endif -#ifndef LWS_MAX_PROTOCOLS -#define LWS_MAX_PROTOCOLS 5 -#endif -#ifndef LWS_MAX_EXTENSIONS_ACTIVE -#define LWS_MAX_EXTENSIONS_ACTIVE 2 -#endif -#ifndef LWS_MAX_EXT_OFFERS -#define LWS_MAX_EXT_OFFERS 8 -#endif -#ifndef SPEC_LATEST_SUPPORTED -#define SPEC_LATEST_SUPPORTED 13 -#endif -#ifndef AWAITING_TIMEOUT -#define AWAITING_TIMEOUT 20 -#endif -#ifndef CIPHERS_LIST_STRING -#define CIPHERS_LIST_STRING "DEFAULT" -#endif -#ifndef LWS_SOMAXCONN -#define LWS_SOMAXCONN SOMAXCONN -#endif - -#define MAX_WEBSOCKET_04_KEY_LEN 128 - -#ifndef SYSTEM_RANDOM_FILEPATH -#define SYSTEM_RANDOM_FILEPATH "/dev/urandom" -#endif - -enum lws_websocket_opcodes_07 { - LWSWSOPC_CONTINUATION = 0, - LWSWSOPC_TEXT_FRAME = 1, - LWSWSOPC_BINARY_FRAME = 2, - - LWSWSOPC_NOSPEC__MUX = 7, - - /* control extensions 8+ */ - - LWSWSOPC_CLOSE = 8, - LWSWSOPC_PING = 9, - LWSWSOPC_PONG = 0xa, -}; - - -enum lws_connection_states { - LWSS_HTTP, - LWSS_HTTP_ISSUING_FILE, - LWSS_HTTP_HEADERS, - LWSS_HTTP_BODY, - LWSS_DEAD_SOCKET, - LWSS_ESTABLISHED, - LWSS_CLIENT_HTTP_ESTABLISHED, - LWSS_CLIENT_UNCONNECTED, - LWSS_WAITING_TO_SEND_CLOSE_NOTIFICATION, - LWSS_RETURNED_CLOSE_ALREADY, - LWSS_AWAITING_CLOSE_ACK, - LWSS_FLUSHING_STORED_SEND_BEFORE_CLOSE, - LWSS_SHUTDOWN, - - LWSS_HTTP2_AWAIT_CLIENT_PREFACE, - LWSS_HTTP2_ESTABLISHED_PRE_SETTINGS, - LWSS_HTTP2_ESTABLISHED, - - LWSS_CGI, -}; - -enum http_version { - HTTP_VERSION_1_0, - HTTP_VERSION_1_1, - HTTP_VERSION_2 -}; - -enum http_connection_type { - HTTP_CONNECTION_CLOSE, - HTTP_CONNECTION_KEEP_ALIVE -}; - -enum lws_rx_parse_state { - LWS_RXPS_NEW, - - LWS_RXPS_04_mask_1, - LWS_RXPS_04_mask_2, - LWS_RXPS_04_mask_3, - - LWS_RXPS_04_FRAME_HDR_1, - LWS_RXPS_04_FRAME_HDR_LEN, - LWS_RXPS_04_FRAME_HDR_LEN16_2, - LWS_RXPS_04_FRAME_HDR_LEN16_1, - LWS_RXPS_04_FRAME_HDR_LEN64_8, - LWS_RXPS_04_FRAME_HDR_LEN64_7, - LWS_RXPS_04_FRAME_HDR_LEN64_6, - LWS_RXPS_04_FRAME_HDR_LEN64_5, - LWS_RXPS_04_FRAME_HDR_LEN64_4, - LWS_RXPS_04_FRAME_HDR_LEN64_3, - LWS_RXPS_04_FRAME_HDR_LEN64_2, - LWS_RXPS_04_FRAME_HDR_LEN64_1, - - LWS_RXPS_07_COLLECT_FRAME_KEY_1, - LWS_RXPS_07_COLLECT_FRAME_KEY_2, - LWS_RXPS_07_COLLECT_FRAME_KEY_3, - LWS_RXPS_07_COLLECT_FRAME_KEY_4, - - LWS_RXPS_PAYLOAD_UNTIL_LENGTH_EXHAUSTED -}; - -#define LWSCM_FLAG_IMPLIES_CALLBACK_CLOSED_CLIENT_HTTP 32 - -enum connection_mode { - LWSCM_HTTP_SERVING, - LWSCM_HTTP_SERVING_ACCEPTED, /* actual HTTP service going on */ - LWSCM_PRE_WS_SERVING_ACCEPT, - - LWSCM_WS_SERVING, - LWSCM_WS_CLIENT, - - LWSCM_HTTP2_SERVING, - - /* transient, ssl delay hiding */ - LWSCM_SSL_ACK_PENDING, - LWSCM_SSL_INIT, - /* as above, but complete into LWSCM_RAW */ - LWSCM_SSL_ACK_PENDING_RAW, - LWSCM_SSL_INIT_RAW, - - /* special internal types */ - LWSCM_SERVER_LISTENER, - LWSCM_CGI, /* stdin, stdout, stderr for another cgi master wsi */ - LWSCM_RAW, /* raw with bulk handling */ - LWSCM_RAW_FILEDESC, /* raw without bulk handling */ - - /* HTTP Client related */ - LWSCM_HTTP_CLIENT = LWSCM_FLAG_IMPLIES_CALLBACK_CLOSED_CLIENT_HTTP, - LWSCM_HTTP_CLIENT_ACCEPTED, /* actual HTTP service going on */ - LWSCM_WSCL_WAITING_CONNECT, - LWSCM_WSCL_WAITING_PROXY_REPLY, - LWSCM_WSCL_ISSUE_HANDSHAKE, - LWSCM_WSCL_ISSUE_HANDSHAKE2, - LWSCM_WSCL_ISSUE_HTTP_BODY, - LWSCM_WSCL_WAITING_SSL, - LWSCM_WSCL_WAITING_SERVER_REPLY, - LWSCM_WSCL_WAITING_EXTENSION_CONNECT, - LWSCM_WSCL_PENDING_CANDIDATE_CHILD, - LWSCM_WSCL_WAITING_SOCKS_GREETING_REPLY, - LWSCM_WSCL_WAITING_SOCKS_CONNECT_REPLY, - LWSCM_WSCL_WAITING_SOCKS_AUTH_REPLY, - - /****** add new things just above ---^ ******/ - - -}; - -/* enums of socks version */ -enum socks_version { - SOCKS_VERSION_4 = 4, - SOCKS_VERSION_5 = 5 -}; - -/* enums of subnegotiation version */ -enum socks_subnegotiation_version { - SOCKS_SUBNEGOTIATION_VERSION_1 = 1, -}; - -/* enums of socks commands */ -enum socks_command { - SOCKS_COMMAND_CONNECT = 1, - SOCKS_COMMAND_BIND = 2, - SOCKS_COMMAND_UDP_ASSOCIATE = 3 -}; - -/* enums of socks address type */ -enum socks_atyp { - SOCKS_ATYP_IPV4 = 1, - SOCKS_ATYP_DOMAINNAME = 3, - SOCKS_ATYP_IPV6 = 4 -}; - -/* enums of socks authentication methods */ -enum socks_auth_method { - SOCKS_AUTH_NO_AUTH = 0, - SOCKS_AUTH_GSSAPI = 1, - SOCKS_AUTH_USERNAME_PASSWORD = 2 -}; - -/* enums of subnegotiation status */ -enum socks_subnegotiation_status { - SOCKS_SUBNEGOTIATION_STATUS_SUCCESS = 0, -}; - -/* enums of socks request reply */ -enum socks_request_reply { - SOCKS_REQUEST_REPLY_SUCCESS = 0, - SOCKS_REQUEST_REPLY_FAILURE_GENERAL = 1, - SOCKS_REQUEST_REPLY_CONNECTION_NOT_ALLOWED = 2, - SOCKS_REQUEST_REPLY_NETWORK_UNREACHABLE = 3, - SOCKS_REQUEST_REPLY_HOST_UNREACHABLE = 4, - SOCKS_REQUEST_REPLY_CONNECTION_REFUSED = 5, - SOCKS_REQUEST_REPLY_TTL_EXPIRED = 6, - SOCKS_REQUEST_REPLY_COMMAND_NOT_SUPPORTED = 7, - SOCKS_REQUEST_REPLY_ATYP_NOT_SUPPORTED = 8 -}; - -/* enums used to generate socks messages */ -enum socks_msg_type { - /* greeting */ - SOCKS_MSG_GREETING, - /* credential, user name and password */ - SOCKS_MSG_USERNAME_PASSWORD, - /* connect command */ - SOCKS_MSG_CONNECT -}; - -enum { - LWS_RXFLOW_ALLOW = (1 << 0), - LWS_RXFLOW_PENDING_CHANGE = (1 << 1), -}; - -struct lws_ring { - void *buf; - void (*destroy_element)(void *element); - size_t buflen; - size_t element_len; - uint32_t head; - uint32_t oldest_tail; -}; - -/* this is not usable directly by user code any more, lws_close_reason() */ -#define LWS_WRITE_CLOSE 4 - -struct lws_protocols; -struct lws; - -#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT) - -struct lws_io_watcher { -#ifdef LWS_WITH_LIBEV - ev_io ev_watcher; -#endif -#ifdef LWS_WITH_LIBUV - uv_poll_t uv_watcher; -#endif -#ifdef LWS_WITH_LIBEVENT - struct event *event_watcher; -#endif - struct lws_context *context; - - uint8_t actual_events; -}; - -struct lws_signal_watcher { -#ifdef LWS_WITH_LIBEV - ev_signal ev_watcher; -#endif -#ifdef LWS_WITH_LIBUV - uv_signal_t uv_watcher; -#endif -#ifdef LWS_WITH_LIBEVENT - struct event *event_watcher; -#endif - struct lws_context *context; -}; -#endif - -#ifdef _WIN32 -#define LWS_FD_HASH(fd) ((fd ^ (fd >> 8) ^ (fd >> 16)) % FD_HASHTABLE_MODULUS) -struct lws_fd_hashtable { - struct lws **wsi; - int length; -}; -#endif - -/* - * This is totally opaque to code using the library. It's exported as a - * forward-reference pointer-only declaration; the user can use the pointer with - * other APIs to get information out of it. - */ - -#if defined(LWS_WITH_ESP32) -typedef uint16_t ah_data_idx_t; -#else -typedef uint32_t ah_data_idx_t; -#endif - -struct lws_fragments { - ah_data_idx_t offset; - uint16_t len; - uint8_t nfrag; /* which ah->frag[] continues this content, or 0 */ - uint8_t flags; /* only http2 cares */ -}; - -/* - * these are assigned from a pool held in the context. - * Both client and server mode uses them for http header analysis - */ - -struct allocated_headers { - struct allocated_headers *next; /* linked list */ - struct lws *wsi; /* owner */ - char *data; /* prepared by context init to point to dedicated storage */ - ah_data_idx_t data_length; - /* - * the randomly ordered fragments, indexed by frag_index and - * lws_fragments->nfrag for continuation. - */ - struct lws_fragments frags[WSI_TOKEN_COUNT]; - time_t assigned; - /* - * for each recognized token, frag_index says which frag[] his data - * starts in (0 means the token did not appear) - * the actual header data gets dumped as it comes in, into data[] - */ - uint8_t frag_index[WSI_TOKEN_COUNT]; -#if defined(LWS_WITH_ESP32) - uint8_t rx[256]; -#else - uint8_t rx[2048]; -#endif - - int16_t rxpos; - int16_t rxlen; - uint32_t pos; - uint32_t http_response; - int hdr_token_idx; - -#ifndef LWS_NO_CLIENT - char initial_handshake_hash_base64[30]; -#endif - - uint8_t in_use; - uint8_t nfrag; -}; - -/* - * so we can have n connections being serviced simultaneously, - * these things need to be isolated per-thread. - */ - -struct lws_context_per_thread { -#if LWS_MAX_SMP > 1 - pthread_mutex_t lock; -#endif - struct lws_pollfd *fds; -#if defined(LWS_WITH_ESP8266) - struct lws **lws_vs_fds_index; -#endif - struct lws *rx_draining_ext_list; - struct lws *tx_draining_ext_list; - struct lws *timeout_list; -#if defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT) - struct lws_context *context; -#endif -#ifdef LWS_WITH_CGI - struct lws_cgi *cgi_list; -#endif - void *http_header_data; - struct allocated_headers *ah_list; - struct lws *ah_wait_list; - int ah_wait_list_length; -#ifdef LWS_OPENSSL_SUPPORT - struct lws *pending_read_list; /* linked list */ -#endif -#if defined(LWS_WITH_LIBEV) - struct ev_loop *io_loop_ev; -#endif -#if defined(LWS_WITH_LIBUV) - uv_loop_t *io_loop_uv; - uv_signal_t signals[8]; - uv_timer_t uv_timeout_watcher; - uv_idle_t uv_idle; -#endif -#if defined(LWS_WITH_LIBEVENT) - struct event_base *io_loop_event_base; -#endif -#if defined(LWS_WITH_LIBEV) - struct lws_io_watcher w_accept; -#endif -#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT) - struct lws_signal_watcher w_sigint; - unsigned char ev_loop_foreign:1; -#endif - - unsigned long count_conns; - /* - * usable by anything in the service code, but only if the scope - * does not last longer than the service action (since next service - * of any socket can likewise use it and overwrite) - */ - unsigned char *serv_buf; -#ifdef _WIN32 - WSAEVENT *events; -#else - lws_sockfd_type dummy_pipe_fds[2]; -#endif - unsigned int fds_count; - uint32_t ah_pool_length; - - short ah_count_in_use; - unsigned char tid; - unsigned char lock_depth; -}; - -struct lws_conn_stats { - unsigned long long rx, tx; - unsigned long h1_conn, h1_trans, h2_trans, ws_upg, h2_alpn, h2_subs, - h2_upg, rejected; -}; - -void -lws_sum_stats(const struct lws_context *ctx, struct lws_conn_stats *cs); - - -enum lws_h2_settings { - H2SET_HEADER_TABLE_SIZE = 1, - H2SET_ENABLE_PUSH, - H2SET_MAX_CONCURRENT_STREAMS, - H2SET_INITIAL_WINDOW_SIZE, - H2SET_MAX_FRAME_SIZE, - H2SET_MAX_HEADER_LIST_SIZE, - - H2SET_COUNT /* always last */ -}; - -struct http2_settings { - uint32_t s[H2SET_COUNT]; -}; - -/* - * virtual host -related context information - * vhostwide SSL context - * vhostwide proxy - * - * hierarchy: - * - * context -> vhost -> wsi - * - * incoming connection non-SSL vhost binding: - * - * listen socket -> wsi -> select vhost after first headers - * - * incoming connection SSL vhost binding: - * - * SSL SNI -> wsi -> bind after SSL negotiation - */ - -struct lws_vhost { -#if !defined(LWS_WITH_ESP8266) - char http_proxy_address[128]; - char proxy_basic_auth_token[128]; -#if defined(LWS_WITH_HTTP2) - struct http2_settings set; -#endif -#if defined(LWS_WITH_SOCKS5) - char socks_proxy_address[128]; - char socks_user[96]; - char socks_password[96]; -#endif -#endif -#if defined(LWS_WITH_ESP8266) - /* listen sockets need a place to hang their hat */ - esp_tcp tcp; -#endif - struct lws_conn_stats conn_stats; - struct lws_context *context; - struct lws_vhost *vhost_next; - const struct lws_http_mount *mount_list; - struct lws *lserv_wsi; - const char *name; - const char *iface; -#if !defined(LWS_WITH_ESP8266) && !defined(LWS_WITH_ESP32) && !defined(OPTEE_TA) && !defined(WIN32) - int bind_iface; -#endif - const struct lws_protocols *protocols; - void **protocol_vh_privs; - const struct lws_protocol_vhost_options *pvo; - const struct lws_protocol_vhost_options *headers; - struct lws **same_vh_protocol_list; -#ifdef LWS_OPENSSL_SUPPORT - SSL_CTX *ssl_ctx; - SSL_CTX *ssl_client_ctx; -#endif -#if defined(LWS_WITH_MBEDTLS) - X509 *x509_client_CA; -#endif -#ifndef LWS_NO_EXTENSIONS - const struct lws_extension *extensions; -#endif - void *user; - - int listen_port; - unsigned int http_proxy_port; -#if defined(LWS_WITH_SOCKS5) - unsigned int socks_proxy_port; -#endif - unsigned int options; - int count_protocols; - int ka_time; - int ka_probes; - int ka_interval; - int keepalive_timeout; - int timeout_secs_ah_idle; - int ssl_info_event_mask; -#ifdef LWS_WITH_ACCESS_LOG - int log_fd; -#endif - -#ifdef LWS_OPENSSL_SUPPORT - int use_ssl; - int allow_non_ssl_on_ssl_port; - unsigned int user_supplied_ssl_ctx:1; -#endif - - unsigned int created_vhost_protocols:1; - unsigned int being_destroyed:1; - - unsigned char default_protocol_index; - unsigned char raw_protocol_index; -}; - -struct lws_deferred_free -{ - struct lws_deferred_free *next; - time_t deadline; - void *payload; -}; - -typedef union { -#ifdef LWS_WITH_IPV6 - struct sockaddr_in6 sa6; -#endif - struct sockaddr_in sa4; -} sockaddr46; - - -#if defined(LWS_WITH_PEER_LIMITS) -struct lws_peer { - struct lws_peer *next; - struct lws_peer *peer_wait_list; - - time_t time_created; - time_t time_closed_all; - - uint8_t addr[32]; - uint32_t hash; - uint32_t count_wsi; - uint32_t count_ah; - - uint32_t total_wsi; - uint32_t total_ah; - - uint8_t af; -}; -#endif - -/* - * the rest is managed per-context, that includes - * - * - processwide single fd -> wsi lookup - * - contextwide headers pool - */ - -struct lws_context { - time_t last_timeout_check_s; - time_t last_ws_ping_pong_check_s; - time_t time_up; - const struct lws_plat_file_ops *fops; - struct lws_plat_file_ops fops_platform; -#if defined(LWS_WITH_HTTP2) - struct http2_settings set; -#endif -#if defined(LWS_WITH_ZIP_FOPS) - struct lws_plat_file_ops fops_zip; -#endif - struct lws_context_per_thread pt[LWS_MAX_SMP]; - struct lws_conn_stats conn_stats; -#if LWS_MAX_SMP > 1 - pthread_mutex_t lock; - int lock_depth; -#endif -#ifdef _WIN32 -/* different implementation between unix and windows */ - struct lws_fd_hashtable fd_hashtable[FD_HASHTABLE_MODULUS]; -#else -#if defined(LWS_WITH_ESP8266) - struct espconn **connpool; /* .reverse points to the wsi */ - void *rxd; - int rxd_len; - os_timer_t to_timer; -#else - struct lws **lws_lookup; /* fd to wsi */ -#endif -#endif - struct lws_vhost *vhost_list; - struct lws_vhost *vhost_pending_destruction_list; - struct lws_plugin *plugin_list; - struct lws_deferred_free *deferred_free_list; -#if defined(LWS_WITH_PEER_LIMITS) - struct lws_peer **pl_hash_table; - struct lws_peer *peer_wait_list; - time_t next_cull; -#endif - - void *external_baggage_free_on_destroy; - const struct lws_token_limits *token_limits; - void *user_space; - const char *server_string; - const struct lws_protocol_vhost_options *reject_service_keywords; - lws_reload_func deprecation_cb; - -#if defined(LWS_HAVE_SYS_CAPABILITY_H) && defined(LWS_HAVE_LIBCAP) - cap_value_t caps[4]; - char count_caps; -#endif - -#if defined(LWS_WITH_LIBEV) - lws_ev_signal_cb_t * lws_ev_sigint_cb; -#endif -#if defined(LWS_WITH_LIBUV) - uv_signal_cb lws_uv_sigint_cb; - uv_loop_t pu_loop; -#endif -#if defined(LWS_WITH_LIBEVENT) - lws_event_signal_cb_t * lws_event_sigint_cb; -#endif - char canonical_hostname[128]; -#ifdef LWS_LATENCY - unsigned long worst_latency; - char worst_latency_info[256]; -#endif - -#if defined(LWS_WITH_STATS) - uint64_t lws_stats[LWSSTATS_SIZE]; - uint64_t last_dump; - int updated; -#endif -#if defined(LWS_WITH_ESP32) - unsigned long time_last_state_dump; - uint32_t last_free_heap; -#endif - - int max_fds; -#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT) - int use_ev_sigint; -#endif - int started_with_parent; - int uid, gid; - - int fd_random; - - int count_wsi_allocated; - int count_cgi_spawned; - unsigned int options; - unsigned int fd_limit_per_thread; - unsigned int timeout_secs; - unsigned int pt_serv_buf_size; - int max_http_header_data; - int simultaneous_ssl_restriction; - int simultaneous_ssl; -#if defined(LWS_WITH_PEER_LIMITS) - uint32_t pl_hash_elements; /* protected by context->lock */ - uint32_t count_peers; /* protected by context->lock */ - unsigned short ip_limit_ah; - unsigned short ip_limit_wsi; -#endif - unsigned int deprecated:1; - unsigned int being_destroyed:1; - unsigned int being_destroyed1:1; - unsigned int requested_kill:1; - unsigned int protocol_init_done:1; - unsigned int ssl_gate_accepts:1; - unsigned int doing_protocol_init; - /* - * set to the Thread ID that's doing the service loop just before entry - * to poll indicates service thread likely idling in poll() - * volatile because other threads may check it as part of processing - * for pollfd event change. - */ - volatile int service_tid; - int service_tid_detected; - - short max_http_header_pool; - short count_threads; - short plugin_protocol_count; - short plugin_extension_count; - short server_string_len; - unsigned short ws_ping_pong_interval; - unsigned short deprecation_pending_listen_close_count; - - uint8_t max_fi; -}; - -int -lws_check_deferred_free(struct lws_context *context, int force); - -#define lws_get_context_protocol(ctx, x) ctx->vhost_list->protocols[x] -#define lws_get_vh_protocol(vh, x) vh->protocols[x] - -LWS_EXTERN void -lws_close_free_wsi_final(struct lws *wsi); -LWS_EXTERN void -lws_libuv_closehandle(struct lws *wsi); -LWS_EXTERN void -lws_libuv_closehandle_manually(struct lws *wsi); -LWS_EXTERN int -lws_libuv_check_watcher_active(struct lws *wsi); - -LWS_VISIBLE LWS_EXTERN int -lws_plat_plugins_init(struct lws_context * context, const char * const *d); - -LWS_VISIBLE LWS_EXTERN int -lws_plat_plugins_destroy(struct lws_context * context); - -LWS_EXTERN void -lws_restart_ws_ping_pong_timer(struct lws *wsi); - -struct lws * -lws_adopt_socket_vhost(struct lws_vhost *vh, lws_sockfd_type accept_fd); - - -enum { - LWS_EV_READ = (1 << 0), - LWS_EV_WRITE = (1 << 1), - LWS_EV_START = (1 << 2), - LWS_EV_STOP = (1 << 3), - - LWS_EV_PREPARE_DELETION = (1 << 31), -}; - -#if defined(LWS_WITH_LIBEV) -LWS_EXTERN void -lws_libev_accept(struct lws *new_wsi, lws_sock_file_fd_type desc); -LWS_EXTERN void -lws_libev_io(struct lws *wsi, int flags); -LWS_EXTERN int -lws_libev_init_fd_table(struct lws_context *context); -LWS_EXTERN void -lws_libev_destroyloop(struct lws_context *context, int tsi); -LWS_EXTERN void -lws_libev_run(const struct lws_context *context, int tsi); -#define LWS_LIBEV_ENABLED(context) lws_check_opt(context->options, LWS_SERVER_OPTION_LIBEV) -LWS_EXTERN void lws_feature_status_libev(struct lws_context_creation_info *info); -#else -#define lws_libev_accept(_a, _b) ((void) 0) -#define lws_libev_io(_a, _b) ((void) 0) -#define lws_libev_init_fd_table(_a) (0) -#define lws_libev_run(_a, _b) ((void) 0) -#define lws_libev_destroyloop(_a, _b) ((void) 0) -#define LWS_LIBEV_ENABLED(context) (0) -#if LWS_POSIX && !defined(LWS_WITH_ESP32) -#define lws_feature_status_libev(_a) \ - lwsl_info("libev support not compiled in\n") -#else -#define lws_feature_status_libev(_a) -#endif -#endif - -#if defined(LWS_WITH_LIBUV) -LWS_EXTERN void -lws_libuv_accept(struct lws *new_wsi, lws_sock_file_fd_type desc); -LWS_EXTERN void -lws_libuv_io(struct lws *wsi, int flags); -LWS_EXTERN int -lws_libuv_init_fd_table(struct lws_context *context); -LWS_EXTERN void -lws_libuv_run(const struct lws_context *context, int tsi); -LWS_EXTERN void -lws_libuv_destroyloop(struct lws_context *context, int tsi); -LWS_EXTERN int -lws_uv_initvhost(struct lws_vhost* vh, struct lws*); -#define LWS_LIBUV_ENABLED(context) lws_check_opt(context->options, LWS_SERVER_OPTION_LIBUV) -LWS_EXTERN void lws_feature_status_libuv(struct lws_context_creation_info *info); -#else -#define lws_libuv_accept(_a, _b) ((void) 0) -#define lws_libuv_io(_a, _b) ((void) 0) -#define lws_libuv_init_fd_table(_a) (0) -#define lws_libuv_run(_a, _b) ((void) 0) -#define lws_libuv_destroyloop(_a, _b) ((void) 0) -#define LWS_LIBUV_ENABLED(context) (0) -#if LWS_POSIX && !defined(LWS_WITH_ESP32) -#define lws_feature_status_libuv(_a) \ - lwsl_notice("libuv support not compiled in\n") -#else -#define lws_feature_status_libuv(_a) -#endif -#endif - -#if defined(LWS_WITH_LIBEVENT) -LWS_EXTERN void -lws_libevent_accept(struct lws *new_wsi, lws_sock_file_fd_type desc); -LWS_EXTERN void -lws_libevent_io(struct lws *wsi, int flags); -LWS_EXTERN int -lws_libevent_init_fd_table(struct lws_context *context); -LWS_EXTERN void -lws_libevent_destroyloop(struct lws_context *context, int tsi); -LWS_EXTERN void -lws_libevent_run(const struct lws_context *context, int tsi); -#define LWS_LIBEVENT_ENABLED(context) lws_check_opt(context->options, LWS_SERVER_OPTION_LIBEVENT) -LWS_EXTERN void lws_feature_status_libevent(struct lws_context_creation_info *info); -#else -#define lws_libevent_accept(_a, _b) ((void) 0) -#define lws_libevent_io(_a, _b) ((void) 0) -#define lws_libevent_init_fd_table(_a) (0) -#define lws_libevent_run(_a, _b) ((void) 0) -#define lws_libevent_destroyloop(_a, _b) ((void) 0) -#define LWS_LIBEVENT_ENABLED(context) (0) -#if LWS_POSIX && !defined(LWS_WITH_ESP32) -#define lws_feature_status_libevent(_a) \ - lwsl_notice("libevent support not compiled in\n") -#else -#define lws_feature_status_libevent(_a) -#endif -#endif - - -#ifdef LWS_WITH_IPV6 -#define LWS_IPV6_ENABLED(vh) \ - (!lws_check_opt(vh->context->options, LWS_SERVER_OPTION_DISABLE_IPV6) && \ - !lws_check_opt(vh->options, LWS_SERVER_OPTION_DISABLE_IPV6)) -#else -#define LWS_IPV6_ENABLED(context) (0) -#endif - -#ifdef LWS_WITH_UNIX_SOCK -#define LWS_UNIX_SOCK_ENABLED(vhost) \ - (vhost->options & LWS_SERVER_OPTION_UNIX_SOCK) -#else -#define LWS_UNIX_SOCK_ENABLED(vhost) (0) -#endif - -enum uri_path_states { - URIPS_IDLE, - URIPS_SEEN_SLASH, - URIPS_SEEN_SLASH_DOT, - URIPS_SEEN_SLASH_DOT_DOT, -}; - -enum uri_esc_states { - URIES_IDLE, - URIES_SEEN_PERCENT, - URIES_SEEN_PERCENT_H1, -}; - -/* notice that these union members: - * - * hdr - * http - * http2 - * - * all have a pointer to allocated_headers struct as their first member. - * - * It means for allocated_headers access, the three union paths can all be - * used interchangeably to access the same data - */ - - -#ifndef LWS_NO_CLIENT -struct client_info_stash { - char address[256]; - char path[4096]; - char host[256]; - char origin[256]; - char protocol[256]; - char method[16]; - char iface[16]; -}; -#endif - -struct _lws_header_related { - /* MUST be first in struct */ - struct allocated_headers *ah; - struct lws *ah_wait_list; - unsigned char *preamble_rx; -#ifndef LWS_NO_CLIENT - struct client_info_stash *stash; -#endif - unsigned int preamble_rx_len; - enum uri_path_states ups; - enum uri_esc_states ues; - short lextable_pos; - unsigned int current_token_limit; - - char esc_stash; - char post_literal_equal; - unsigned char parser_state; /* enum lws_token_indexes */ -}; - -#if defined(LWS_WITH_RANGES) -enum range_states { - LWSRS_NO_ACTIVE_RANGE, - LWSRS_BYTES_EQ, - LWSRS_FIRST, - LWSRS_STARTING, - LWSRS_ENDING, - LWSRS_COMPLETED, - LWSRS_SYNTAX, -}; - -struct lws_range_parsing { - unsigned long long start, end, extent, agg, budget; - const char buf[128]; - int pos; - enum range_states state; - char start_valid, end_valid, ctr, count_ranges, did_try, inside, send_ctr; -}; - -int -lws_ranges_init(struct lws *wsi, struct lws_range_parsing *rp, unsigned long long extent); -int -lws_ranges_next(struct lws_range_parsing *rp); -void -lws_ranges_reset(struct lws_range_parsing *rp); -#endif - -struct _lws_http_mode_related { - /* MUST be first in struct */ - struct allocated_headers *ah; /* mirroring _lws_header_related */ - struct lws *ah_wait_list; - unsigned char *preamble_rx; -#ifndef LWS_NO_CLIENT - struct client_info_stash *stash; -#endif - unsigned int preamble_rx_len; - struct lws *new_wsi_list; - lws_filepos_t filepos; - lws_filepos_t filelen; - lws_fop_fd_t fop_fd; - -#if defined(LWS_WITH_RANGES) - struct lws_range_parsing range; - char multipart_content_type[64]; -#endif - - enum http_version request_version; - enum http_connection_type connection_type; - lws_filepos_t tx_content_length; - lws_filepos_t tx_content_remain; - lws_filepos_t rx_content_length; - lws_filepos_t rx_content_remain; -}; - -#define LWS_H2_FRAME_HEADER_LENGTH 9 - -#ifdef LWS_WITH_HTTP2 - -enum lws_h2_wellknown_frame_types { - LWS_H2_FRAME_TYPE_DATA, - LWS_H2_FRAME_TYPE_HEADERS, - LWS_H2_FRAME_TYPE_PRIORITY, - LWS_H2_FRAME_TYPE_RST_STREAM, - LWS_H2_FRAME_TYPE_SETTINGS, - LWS_H2_FRAME_TYPE_PUSH_PROMISE, - LWS_H2_FRAME_TYPE_PING, - LWS_H2_FRAME_TYPE_GOAWAY, - LWS_H2_FRAME_TYPE_WINDOW_UPDATE, - LWS_H2_FRAME_TYPE_CONTINUATION, - - LWS_H2_FRAME_TYPE_COUNT /* always last */ -}; - -enum lws_h2_flags { - LWS_H2_FLAG_END_STREAM = 1, - LWS_H2_FLAG_END_HEADERS = 4, - LWS_H2_FLAG_PADDED = 8, - LWS_H2_FLAG_PRIORITY = 0x20, - - LWS_H2_FLAG_SETTINGS_ACK = 1, -}; - -enum lws_h2_errors { - H2_ERR_NO_ERROR, /* Graceful shutdown */ - H2_ERR_PROTOCOL_ERROR, /* Protocol error detected */ - H2_ERR_INTERNAL_ERROR, /* Implementation fault */ - H2_ERR_FLOW_CONTROL_ERROR, /* Flow-control limits exceeded */ - H2_ERR_SETTINGS_TIMEOUT, /* Settings not acknowledged */ - H2_ERR_STREAM_CLOSED, /* Frame received for closed stream */ - H2_ERR_FRAME_SIZE_ERROR, /* Frame size incorrect */ - H2_ERR_REFUSED_STREAM, /* Stream not processed */ - H2_ERR_CANCEL, /* Stream cancelled */ - H2_ERR_COMPRESSION_ERROR, /* Compression state not updated */ - H2_ERR_CONNECT_ERROR, /* TCP connection error for CONNECT method */ - H2_ERR_ENHANCE_YOUR_CALM, /* Processing capacity exceeded */ - H2_ERR_INADEQUATE_SECURITY, /* Negotiated TLS parameters not acceptable */ - H2_ERR_HTTP_1_1_REQUIRED, /* Use HTTP/1.1 for the request */ -}; - -enum lws_h2_states { - LWS_H2_STATE_IDLE, - /* - * Send PUSH_PROMISE -> LWS_H2_STATE_RESERVED_LOCAL - * Recv PUSH_PROMISE -> LWS_H2_STATE_RESERVED_REMOTE - * Send HEADERS -> LWS_H2_STATE_OPEN - * Recv HEADERS -> LWS_H2_STATE_OPEN - * - * - Only PUSH_PROMISE + HEADERS valid to send - * - Only HEADERS or PRIORITY valid to receive - */ - LWS_H2_STATE_RESERVED_LOCAL, - /* - * Send RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv RST_STREAM -> LWS_H2_STATE_CLOSED - * Send HEADERS -> LWS_H2_STATE_HALF_CLOSED_REMOTE - * - * - Only HEADERS, RST_STREAM, or PRIORITY valid to send - * - Only RST_STREAM, PRIORITY, or WINDOW_UPDATE valid to receive - */ - LWS_H2_STATE_RESERVED_REMOTE, - /* - * Send RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv HEADERS -> LWS_H2_STATE_HALF_CLOSED_LOCAL - * - * - Only RST_STREAM, WINDOW_UPDATE, or PRIORITY valid to send - * - Only HEADERS, RST_STREAM, or PRIORITY valid to receive - */ - LWS_H2_STATE_OPEN, - /* - * Send RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv RST_STREAM -> LWS_H2_STATE_CLOSED - * Send END_STREAM flag -> LWS_H2_STATE_HALF_CLOSED_LOCAL - * Recv END_STREAM flag -> LWS_H2_STATE_HALF_CLOSED_REMOTE - */ - LWS_H2_STATE_HALF_CLOSED_REMOTE, - /* - * Send RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv RST_STREAM -> LWS_H2_STATE_CLOSED - * Send END_STREAM flag -> LWS_H2_STATE_CLOSED - * - * - Any frame valid to send - * - Only WINDOW_UPDATE, PRIORITY, or RST_STREAM valid to receive - */ - LWS_H2_STATE_HALF_CLOSED_LOCAL, - /* - * Send RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv RST_STREAM -> LWS_H2_STATE_CLOSED - * Recv END_STREAM flag -> LWS_H2_STATE_CLOSED - * - * - Only WINDOW_UPDATE, PRIORITY, and RST_STREAM valid to send - * - Any frame valid to receive - */ - LWS_H2_STATE_CLOSED, - /* - * - Only PRIORITY, WINDOW_UPDATE (IGNORE) and RST_STREAM (IGNORE) - * may be received - * - * - Only PRIORITY valid to send - */ -}; - -#define LWS_H2_STREAM_ID_MASTER 0 -#define LWS_H2_SETTINGS_LEN 6 - -enum http2_hpack_state { - HPKS_TYPE, - - HPKS_IDX_EXT, - - HPKS_HLEN, - HPKS_HLEN_EXT, - - HPKS_DATA, -}; - -/* - * lws general parsimonious header strategy is only store values from known - * headers, and refer to them by index. - * - * That means if we can't map the peer header name to one that lws knows, we - * will drop the content but track the indexing with associated_lws_hdr_idx = - * LWS_HPACK_IGNORE_ENTRY. - */ - -enum http2_hpack_type { - HPKT_INDEXED_HDR_7, /* 1xxxxxxx: just "header field" */ - HPKT_INDEXED_HDR_6_VALUE_INCR, /* 01xxxxxx: NEW indexed hdr with value */ - HPKT_LITERAL_HDR_VALUE_INCR, /* 01000000: NEW literal hdr with value */ - HPKT_INDEXED_HDR_4_VALUE, /* 0000xxxx: indexed hdr with value */ - HPKT_INDEXED_HDR_4_VALUE_NEVER, /* 0001xxxx: indexed hdr with value NEVER NEW */ - HPKT_LITERAL_HDR_VALUE, /* 00000000: literal hdr with value */ - HPKT_LITERAL_HDR_VALUE_NEVER, /* 00010000: literal hdr with value NEVER NEW */ - HPKT_SIZE_5 -}; - -#define LWS_HPACK_IGNORE_ENTRY 0xffff - - -struct hpack_dt_entry { - char *value; /* malloc'd */ - uint16_t value_len; - uint16_t hdr_len; /* virtual, for accounting */ - uint16_t lws_hdr_idx; /* LWS_HPACK_IGNORE_ENTRY = IGNORE */ -}; - -struct hpack_dynamic_table { - struct hpack_dt_entry *entries; /* malloc'd */ - uint32_t virtual_payload_usage; - uint32_t virtual_payload_max; - uint16_t pos; - uint16_t used_entries; - uint16_t num_entries; -}; - -enum lws_h2_protocol_send_type { - LWS_PPS_NONE, - LWS_H2_PPS_MY_SETTINGS, - LWS_H2_PPS_ACK_SETTINGS, - LWS_H2_PPS_PONG, - LWS_H2_PPS_GOAWAY, - LWS_H2_PPS_RST_STREAM, - LWS_H2_PPS_UPDATE_WINDOW, -}; - -struct lws_h2_protocol_send { - struct lws_h2_protocol_send *next; /* linked list */ - enum lws_h2_protocol_send_type type; - - union uu { - struct { - char str[32]; - uint32_t highest_sid; - uint32_t err; - } ga; - struct { - uint32_t sid; - uint32_t err; - } rs; - struct { - uint8_t ping_payload[8]; - } ping; - struct { - uint32_t sid; - uint32_t credit; - } update_window; - } u; -}; - -struct lws_h2_ghost_sid { - struct lws_h2_ghost_sid *next; - uint32_t sid; -}; - -#define LWS_H2_RX_SCRATCH_SIZE 512 - -/* - * http/2 connection info that is only used by the root connection that has - * the network connection. - * - * h2 tends to spawn many child connections from one network connection, so - * it's necessary to make members only needed by the network connection - * distinct and only malloc'd on network connections. - * - * There's only one HPACK parser per network connection. - * - * But there is an ah per logical child connection... the network connection - * fills it but it belongs to the logical child. - */ -struct lws_h2_netconn { - struct http2_settings set; - struct hpack_dynamic_table hpack_dyn_table; - uint8_t ping_payload[8]; - uint8_t one_setting[LWS_H2_SETTINGS_LEN]; - char goaway_str[32]; /* for rx */ - struct lws *swsi; - struct lws_h2_protocol_send *pps; /* linked list */ - char *rx_scratch; - - enum http2_hpack_state hpack; - enum http2_hpack_type hpack_type; - - unsigned int huff:1; - unsigned int value:1; - unsigned int unknown_header:1; - unsigned int cont_exp:1; - unsigned int cont_exp_headers:1; - unsigned int we_told_goaway:1; - unsigned int pad_length:1; - unsigned int collected_priority:1; - unsigned int is_first_header_char:1; - unsigned int zero_huff_padding:1; - unsigned int last_action_dyntable_resize:1; - - uint32_t hdr_idx; - uint32_t hpack_len; - uint32_t hpack_e_dep; - uint32_t count; - uint32_t preamble; - uint32_t length; - uint32_t sid; - uint32_t inside; - uint32_t highest_sid; - uint32_t highest_sid_opened; - uint32_t cont_exp_sid; - uint32_t dep; - uint32_t goaway_last_sid; - uint32_t goaway_err; - uint32_t hpack_hdr_len; - - uint32_t rx_scratch_pos; - uint32_t rx_scratch_len; - - uint16_t hpack_pos; - - uint8_t frame_state; - uint8_t type; - uint8_t flags; - uint8_t padding; - uint8_t weight_temp; - uint8_t huff_pad; - char first_hdr_char; - uint8_t hpack_m; - uint8_t ext_count; -}; - -struct _lws_h2_related { - /* - * having this first lets us also re-use all HTTP union code - * and in turn, http_mode_related has allocated headers in right - * place so we can use the header apis on the wsi directly still - */ - struct _lws_http_mode_related http; /* MUST BE FIRST IN STRUCT */ - - struct lws_h2_netconn *h2n; /* malloc'd for root net conn */ - struct lws *parent_wsi; - struct lws *child_list; - struct lws *sibling_list; - - char *pending_status_body; - - int tx_cr; - int peer_tx_cr_est; - unsigned int my_sid; - unsigned int child_count; - int my_priority; - uint32_t dependent_on; - - unsigned int END_STREAM:1; - unsigned int END_HEADERS:1; - unsigned int send_END_STREAM:1; - unsigned int GOING_AWAY; - unsigned int requested_POLLOUT:1; - unsigned int skint:1; - - uint16_t round_robin_POLLOUT; - uint16_t count_POLLOUT_children; - uint8_t h2_state; /* the RFC7540 state of the connection */ - uint8_t weight; - - uint8_t initialized; -}; - -#define HTTP2_IS_TOPLEVEL_WSI(wsi) (!wsi->u.h2.parent_wsi) - -#endif - -struct _lws_websocket_related { - /* cheapest way to deal with ah overlap with ws union transition */ - struct _lws_header_related hdr; - char *rx_ubuf; - unsigned int rx_ubuf_alloc; - struct lws *rx_draining_ext_list; - struct lws *tx_draining_ext_list; - time_t time_next_ping_check; - size_t rx_packet_length; - unsigned int rx_ubuf_head; - unsigned char mask[4]; - /* Also used for close content... control opcode == < 128 */ - unsigned char ping_payload_buf[128 - 3 + LWS_PRE]; - - unsigned char ping_payload_len; - unsigned char mask_idx; - unsigned char opcode; - unsigned char rsv; - unsigned char rsv_first_msg; - /* zero if no info, or length including 2-byte close code */ - unsigned char close_in_ping_buffer_len; - unsigned char utf8; - unsigned char stashed_write_type; - unsigned char tx_draining_stashed_wp; - - unsigned int final:1; - unsigned int frame_is_binary:1; - unsigned int all_zero_nonce:1; - unsigned int this_frame_masked:1; - unsigned int inside_frame:1; /* next write will be more of frame */ - unsigned int clean_buffer:1; /* buffer not rewritten by extension */ - unsigned int payload_is_close:1; /* process as PONG, but it is close */ - unsigned int ping_pending_flag:1; - unsigned int continuation_possible:1; - unsigned int owed_a_fin:1; - unsigned int check_utf8:1; - unsigned int defeat_check_utf8:1; - unsigned int pmce_compressed_message:1; - unsigned int stashed_write_pending:1; - unsigned int rx_draining_ext:1; - unsigned int tx_draining_ext:1; - unsigned int send_check_ping:1; - unsigned int first_fragment:1; -}; - -#ifdef LWS_WITH_CGI - -#define LWS_HTTP_CHUNK_HDR_SIZE 16 - -enum { - SIGNIFICANT_HDR_CONTENT_LENGTH, - SIGNIFICANT_HDR_LOCATION, - SIGNIFICANT_HDR_STATUS, - SIGNIFICANT_HDR_TRANSFER_ENCODING, - - SIGNIFICANT_HDR_COUNT -}; - -/* wsi who is master of the cgi points to an lws_cgi */ - -struct lws_cgi { - struct lws_cgi *cgi_list; - struct lws *stdwsi[3]; /* points to the associated stdin/out/err wsis */ - struct lws *wsi; /* owner */ - unsigned char *headers_buf; - unsigned char *headers_start; - unsigned char *headers_pos; - unsigned char *headers_dumped; - unsigned char *headers_end; - lws_filepos_t content_length; - lws_filepos_t content_length_seen; - int pipe_fds[3][2]; - int match[SIGNIFICANT_HDR_COUNT]; - int pid; - int response_code; - int lp; - char l[12]; - - unsigned int being_closed:1; - unsigned int explicitly_chunked:1; - - unsigned char chunked_grace; -}; -#endif - -signed char char_to_hex(const char c); - -#ifndef LWS_NO_CLIENT -enum lws_chunk_parser { - ELCP_HEX, - ELCP_CR, - ELCP_CONTENT, - ELCP_POST_CR, - ELCP_POST_LF, -}; -#endif - -enum lws_parse_urldecode_results { - LPUR_CONTINUE, - LPUR_SWALLOW, - LPUR_FORBID, - LPUR_EXCESSIVE, -}; - -struct lws_rewrite; - -#ifdef LWS_WITH_ACCESS_LOG -struct lws_access_log { - char *header_log; - char *user_agent; - char *referrer; - unsigned long sent; - int response; -}; -#endif - -struct lws { - - /* structs */ - /* members with mutually exclusive lifetimes are unionized */ - - union u { - struct _lws_http_mode_related http; -#ifdef LWS_WITH_HTTP2 - struct _lws_h2_related h2; -#endif - struct _lws_header_related hdr; - struct _lws_websocket_related ws; - } u; - - /* lifetime members */ - -#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT) - struct lws_io_watcher w_read; -#endif -#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBEVENT) - struct lws_io_watcher w_write; -#endif -#ifdef LWS_WITH_ACCESS_LOG - struct lws_access_log access_log; -#endif - time_t pending_timeout_limit; - - /* pointers */ - - struct lws_context *context; - struct lws_vhost *vhost; - struct lws *parent; /* points to parent, if any */ - struct lws *child_list; /* points to first child */ - struct lws *sibling_list; /* subsequent children at same level */ -#ifdef LWS_WITH_CGI - struct lws_cgi *cgi; /* wsi being cgi master have one of these */ -#endif - const struct lws_protocols *protocol; - struct lws **same_vh_protocol_prev, *same_vh_protocol_next; - struct lws *timeout_list; - struct lws **timeout_list_prev; -#if defined(LWS_WITH_PEER_LIMITS) - struct lws_peer *peer; -#endif - - void *user_space; - void *opaque_parent_data; - /* rxflow handling */ - unsigned char *rxflow_buffer; - /* truncated send handling */ - unsigned char *trunc_alloc; /* non-NULL means buffering in progress */ - -#if defined (LWS_WITH_ESP8266) - void *premature_rx; - unsigned short prem_rx_size, prem_rx_pos; -#endif - -#ifndef LWS_NO_EXTENSIONS - const struct lws_extension *active_extensions[LWS_MAX_EXTENSIONS_ACTIVE]; - void *act_ext_user[LWS_MAX_EXTENSIONS_ACTIVE]; -#endif -#ifdef LWS_OPENSSL_SUPPORT - SSL *ssl; - BIO *client_bio; - struct lws *pending_read_list_prev, *pending_read_list_next; -#if defined(LWS_WITH_STATS) - uint64_t accept_start_us; - char seen_rx; -#endif -#endif -#ifdef LWS_WITH_HTTP_PROXY - struct lws_rewrite *rw; -#endif -#ifdef LWS_LATENCY - unsigned long action_start; - unsigned long latency_start; -#endif - lws_sock_file_fd_type desc; /* .filefd / .sockfd */ -#if defined(LWS_WITH_STATS) - uint64_t active_writable_req_us; -#endif - /* ints */ - int position_in_fds_table; - uint32_t rxflow_len; - uint32_t rxflow_pos; - unsigned int trunc_alloc_len; /* size of malloc */ - unsigned int trunc_offset; /* where we are in terms of spilling */ - unsigned int trunc_len; /* how much is buffered */ -#ifndef LWS_NO_CLIENT - int chunk_remaining; -#endif - unsigned int cache_secs; - - unsigned int hdr_parsing_completed:1; - unsigned int http2_substream:1; - unsigned int upgraded_to_http2:1; - unsigned int seen_nonpseudoheader:1; - unsigned int listener:1; - unsigned int user_space_externally_allocated:1; - unsigned int socket_is_permanently_unusable:1; - unsigned int rxflow_change_to:2; - unsigned int more_rx_waiting:1; /* has to live here since ah may stick to end */ - unsigned int conn_stat_done:1; - unsigned int cache_reuse:1; - unsigned int cache_revalidate:1; - unsigned int cache_intermediaries:1; - unsigned int favoured_pollin:1; - unsigned int sending_chunked:1; - unsigned int already_did_cce:1; - unsigned int told_user_closed:1; - unsigned int waiting_to_send_close_frame:1; - unsigned int ipv6:1; - unsigned int parent_carries_io:1; - unsigned int parent_pending_cb_on_writable:1; - unsigned int cgi_stdout_zero_length:1; - unsigned int seen_zero_length_recv:1; - unsigned int rxflow_will_be_applied:1; - -#if defined(LWS_WITH_ESP8266) - unsigned int pending_send_completion:3; - unsigned int close_is_pending_send_completion:1; -#endif -#ifdef LWS_WITH_ACCESS_LOG - unsigned int access_log_pending:1; -#endif -#ifndef LWS_NO_CLIENT - unsigned int do_ws:1; /* whether we are doing http or ws flow */ - unsigned int chunked:1; /* if the clientside connection is chunked */ - unsigned int client_rx_avail:1; - unsigned int client_http_body_pending:1; -#endif -#ifdef LWS_WITH_HTTP_PROXY - unsigned int perform_rewrite:1; -#endif -#ifndef LWS_NO_EXTENSIONS - unsigned int extension_data_pending:1; -#endif -#ifdef LWS_OPENSSL_SUPPORT - unsigned int use_ssl:4; -#endif -#ifdef _WIN32 - unsigned int sock_send_blocking:1; -#endif -#ifdef LWS_OPENSSL_SUPPORT - unsigned int redirect_to_https:1; -#endif - - /* volatile to make sure code is aware other thread can change */ - volatile unsigned int handling_pollout:1; - volatile unsigned int leave_pollout_active:1; - -#ifndef LWS_NO_CLIENT - unsigned short c_port; -#endif - - /* chars */ -#ifndef LWS_NO_EXTENSIONS - unsigned char count_act_ext; -#endif - uint8_t ietf_spec_revision; - char mode; /* enum connection_mode */ - char state; /* enum lws_connection_states */ - char state_pre_close; - char lws_rx_parse_state; /* enum lws_rx_parse_state */ - char rx_frame_type; /* enum lws_write_protocol */ - char pending_timeout; /* enum pending_timeout */ - char tsi; /* thread service index we belong to */ - char protocol_interpret_idx; - char redirects; - uint8_t rxflow_bitmap; -#ifdef LWS_WITH_CGI - char cgi_channel; /* which of stdin/out/err */ - char hdr_state; -#endif -#ifndef LWS_NO_CLIENT - char chunk_parser; /* enum lws_chunk_parser */ -#endif -#if defined(LWS_WITH_CGI) || !defined(LWS_NO_CLIENT) - char reason_bf; /* internal writeable callback reason bitfield */ -#endif -}; - -#define lws_is_flowcontrolled(w) (!!(wsi->rxflow_bitmap)) - -LWS_EXTERN int log_level; - -LWS_EXTERN int -lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port, - const char *iface); - -#if defined(LWS_WITH_IPV6) -LWS_EXTERN unsigned long -lws_get_addr_scope(const char *ipaddr); -#endif - -LWS_EXTERN void -lws_close_free_wsi(struct lws *wsi, enum lws_close_status); - -LWS_EXTERN void -lws_free_wsi(struct lws *wsi); - -LWS_EXTERN int -remove_wsi_socket_from_fds(struct lws *wsi); -LWS_EXTERN int -lws_rxflow_cache(struct lws *wsi, unsigned char *buf, int n, int len); - -#ifndef LWS_LATENCY -static inline void -lws_latency(struct lws_context *context, struct lws *wsi, const char *action, - int ret, int completion) { - do { - (void)context; (void)wsi; (void)action; (void)ret; - (void)completion; - } while (0); -} -static inline void -lws_latency_pre(struct lws_context *context, struct lws *wsi) { - do { (void)context; (void)wsi; } while (0); -} -#else -#define lws_latency_pre(_context, _wsi) lws_latency(_context, _wsi, NULL, 0, 0) -extern void -lws_latency(struct lws_context *context, struct lws *wsi, const char *action, - int ret, int completion); -#endif - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_client_rx_sm(struct lws *wsi, unsigned char c); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_parse(struct lws *wsi, unsigned char c); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_parse_urldecode(struct lws *wsi, uint8_t *_c); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_http_action(struct lws *wsi); - -LWS_EXTERN int -lws_b64_selftest(void); - -LWS_EXTERN int -lws_service_flag_pending(struct lws_context *context, int tsi); - -#if defined(_WIN32) || defined(LWS_WITH_ESP8266) -LWS_EXTERN struct lws * -wsi_from_fd(const struct lws_context *context, lws_sockfd_type fd); - -LWS_EXTERN int -insert_wsi(struct lws_context *context, struct lws *wsi); - -LWS_EXTERN int -delete_from_fd(struct lws_context *context, lws_sockfd_type fd); -#else -#define wsi_from_fd(A,B) A->lws_lookup[B] -#define insert_wsi(A,B) assert(A->lws_lookup[B->desc.sockfd] == 0); A->lws_lookup[B->desc.sockfd]=B -#define delete_from_fd(A,B) A->lws_lookup[B]=0 -#endif - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -insert_wsi_socket_into_fds(struct lws_context *context, struct lws *wsi); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_issue_raw(struct lws *wsi, unsigned char *buf, size_t len); - - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_service_timeout_check(struct lws *wsi, unsigned int sec); - -LWS_EXTERN void -lws_remove_from_timeout_list(struct lws *wsi); - -LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT -lws_client_connect_2(struct lws *wsi); - -LWS_VISIBLE struct lws * LWS_WARN_UNUSED_RESULT -lws_client_reset(struct lws **wsi, int ssl, const char *address, int port, - const char *path, const char *host); - -LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT -lws_create_new_server_wsi(struct lws_vhost *vhost); - -LWS_EXTERN char * LWS_WARN_UNUSED_RESULT -lws_generate_client_handshake(struct lws *wsi, char *pkt); - -LWS_EXTERN int -lws_handle_POLLOUT_event(struct lws *wsi, struct lws_pollfd *pollfd); - -LWS_EXTERN struct lws * -lws_client_connect_via_info2(struct lws *wsi); - -LWS_EXTERN int -_lws_destroy_ah(struct lws_context_per_thread *pt, struct allocated_headers *ah); - -/* - * EXTENSIONS - */ - -#ifndef LWS_NO_EXTENSIONS -LWS_VISIBLE void -lws_context_init_extensions(struct lws_context_creation_info *info, - struct lws_context *context); -LWS_EXTERN int -lws_any_extension_handled(struct lws *wsi, enum lws_extension_callback_reasons r, - void *v, size_t len); - -LWS_EXTERN int -lws_ext_cb_active(struct lws *wsi, int reason, void *buf, int len); -LWS_EXTERN int -lws_ext_cb_all_exts(struct lws_context *context, struct lws *wsi, int reason, - void *arg, int len); - -#else -#define lws_any_extension_handled(_a, _b, _c, _d) (0) -#define lws_ext_cb_active(_a, _b, _c, _d) (0) -#define lws_ext_cb_all_exts(_a, _b, _c, _d, _e) (0) -#define lws_issue_raw_ext_access lws_issue_raw -#define lws_context_init_extensions(_a, _b) -#endif - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_client_interpret_server_handshake(struct lws *wsi); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_rx_sm(struct lws *wsi, unsigned char c); - -LWS_EXTERN int -lws_payload_until_length_exhausted(struct lws *wsi, unsigned char **buf, size_t *len); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_issue_raw_ext_access(struct lws *wsi, unsigned char *buf, size_t len); - -LWS_EXTERN void -lws_union_transition(struct lws *wsi, enum connection_mode mode); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -user_callback_handle_rxflow(lws_callback_function, struct lws *wsi, - enum lws_callback_reasons reason, void *user, - void *in, size_t len); -#ifdef LWS_WITH_HTTP2 -struct lws * lws_h2_get_nth_child(struct lws *wsi, int n); -LWS_EXTERN void lws_h2_init(struct lws *wsi); -LWS_EXTERN int -lws_h2_settings(struct lws *nwsi, struct http2_settings *settings, - unsigned char *buf, int len); -LWS_EXTERN int -lws_h2_parser(struct lws *wsi, unsigned char c); -LWS_EXTERN int lws_h2_do_pps_send(struct lws *wsi); -LWS_EXTERN int lws_h2_frame_write(struct lws *wsi, int type, int flags, - unsigned int sid, unsigned int len, - unsigned char *buf); -LWS_EXTERN struct lws * -lws_h2_wsi_from_id(struct lws *wsi, unsigned int sid); -LWS_EXTERN int lws_hpack_interpret(struct lws *wsi, - unsigned char c); -LWS_EXTERN int -lws_add_http2_header_by_name(struct lws *wsi, - const unsigned char *name, - const unsigned char *value, int length, - unsigned char **p, unsigned char *end); -LWS_EXTERN int -lws_add_http2_header_by_token(struct lws *wsi, - enum lws_token_indexes token, - const unsigned char *value, int length, - unsigned char **p, unsigned char *end); -LWS_EXTERN int -lws_add_http2_header_status(struct lws *wsi, - unsigned int code, unsigned char **p, - unsigned char *end); -LWS_EXTERN int -lws_h2_configure_if_upgraded(struct lws *wsi); -LWS_EXTERN void -lws_hpack_destroy_dynamic_header(struct lws *wsi); -LWS_EXTERN int -lws_hpack_dynamic_size(struct lws *wsi, int size); -LWS_EXTERN int -lws_h2_goaway(struct lws *wsi, uint32_t err, const char *reason); -LWS_EXTERN int -lws_h2_tx_cr_get(struct lws *wsi); -LWS_EXTERN void -lws_h2_tx_cr_consume(struct lws *wsi, int consumed); -LWS_EXTERN int -lws_hdr_extant(struct lws *wsi, enum lws_token_indexes h); -LWS_EXTERN void -lws_pps_schedule(struct lws *wsi, struct lws_h2_protocol_send *pss); - -LWS_EXTERN const struct http2_settings lws_h2_defaults; -#else -#define lws_h2_configure_if_upgraded(x) -#endif - -LWS_EXTERN int -lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd); - -LWS_EXTERN int -lws_plat_check_connection_error(struct lws *wsi); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_header_table_attach(struct lws *wsi, int autoservice); - -LWS_EXTERN int -lws_header_table_detach(struct lws *wsi, int autoservice); - -LWS_EXTERN void -lws_header_table_reset(struct lws *wsi, int autoservice); -void -_lws_header_table_reset(struct allocated_headers *ah); - -void -lws_header_table_force_to_detachable_state(struct lws *wsi); -int -lws_header_table_is_in_detachable_state(struct lws *wsi); - -LWS_EXTERN char * LWS_WARN_UNUSED_RESULT -lws_hdr_simple_ptr(struct lws *wsi, enum lws_token_indexes h); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_hdr_simple_create(struct lws *wsi, enum lws_token_indexes h, const char *s); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ensure_user_space(struct lws *wsi); - -LWS_EXTERN int -lws_change_pollfd(struct lws *wsi, int _and, int _or); - -#ifndef LWS_NO_SERVER -int lws_context_init_server(struct lws_context_creation_info *info, - struct lws_vhost *vhost); -LWS_EXTERN struct lws_vhost * -lws_select_vhost(struct lws_context *context, int port, const char *servername); -LWS_EXTERN int -handshake_0405(struct lws_context *context, struct lws *wsi); -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_interpret_incoming_packet(struct lws *wsi, unsigned char **buf, size_t len); -LWS_EXTERN void -lws_server_get_canonical_hostname(struct lws_context *context, - struct lws_context_creation_info *info); -#else -#define lws_context_init_server(_a, _b) (0) -#define lws_interpret_incoming_packet(_a, _b, _c) (0) -#define lws_server_get_canonical_hostname(_a, _b) -#endif - -#ifndef LWS_NO_DAEMONIZE -LWS_EXTERN int get_daemonize_pid(); -#else -#define get_daemonize_pid() (0) -#endif - -#if !defined(LWS_WITH_ESP8266) -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -interface_to_sa(struct lws_vhost *vh, const char *ifname, - struct sockaddr_in *addr, size_t addrlen); -#endif -LWS_EXTERN void lwsl_emit_stderr(int level, const char *line); - -enum lws_ssl_capable_status { - LWS_SSL_CAPABLE_ERROR = -1, - LWS_SSL_CAPABLE_MORE_SERVICE = -2, -}; - -#ifndef LWS_OPENSSL_SUPPORT -#define LWS_SSL_ENABLED(context) (0) -#define lws_context_init_server_ssl(_a, _b) (0) -#define lws_ssl_destroy(_a) -#define lws_context_init_http2_ssl(_a) -#define lws_ssl_capable_read lws_ssl_capable_read_no_ssl -#define lws_ssl_capable_write lws_ssl_capable_write_no_ssl -#define lws_ssl_pending lws_ssl_pending_no_ssl -#define lws_server_socket_service_ssl(_b, _c) (0) -#define lws_ssl_close(_a) (0) -#define lws_ssl_context_destroy(_a) -#define lws_ssl_SSL_CTX_destroy(_a) -#define lws_ssl_remove_wsi_from_buffered_list(_a) -#define lws_context_init_ssl_library(_a) -#define lws_ssl_anybody_has_buffered_read_tsi(_a, _b) (0) -#else -#define LWS_SSL_ENABLED(context) (context->use_ssl) -LWS_EXTERN int openssl_websocket_private_data_index; -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ssl_capable_read(struct lws *wsi, unsigned char *buf, int len); -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ssl_capable_write(struct lws *wsi, unsigned char *buf, int len); -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ssl_pending(struct lws *wsi); -LWS_EXTERN int -lws_context_init_ssl_library(struct lws_context_creation_info *info); -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_server_socket_service_ssl(struct lws *new_wsi, lws_sockfd_type accept_fd); -LWS_EXTERN int -lws_ssl_close(struct lws *wsi); -LWS_EXTERN void -lws_ssl_SSL_CTX_destroy(struct lws_vhost *vhost); -LWS_EXTERN void -lws_ssl_context_destroy(struct lws_context *context); -LWS_VISIBLE void -lws_ssl_remove_wsi_from_buffered_list(struct lws *wsi); -LWS_EXTERN int -lws_ssl_client_bio_create(struct lws *wsi); -LWS_EXTERN int -lws_ssl_client_connect1(struct lws *wsi); -LWS_EXTERN int -lws_ssl_client_connect2(struct lws *wsi); -LWS_EXTERN void -lws_ssl_elaborate_error(void); -LWS_EXTERN int -lws_ssl_anybody_has_buffered_read_tsi(struct lws_context *context, int tsi); -#ifndef LWS_NO_SERVER -LWS_EXTERN int -lws_context_init_server_ssl(struct lws_context_creation_info *info, - struct lws_vhost *vhost); -#else -#define lws_context_init_server_ssl(_a, _b) (0) -#endif -LWS_EXTERN void -lws_ssl_destroy(struct lws_vhost *vhost); -/* HTTP2-related */ - -#ifdef LWS_WITH_HTTP2 -LWS_EXTERN void -lws_context_init_http2_ssl(struct lws_vhost *vhost); -#else -#define lws_context_init_http2_ssl(_a) -#endif -#endif - -#if LWS_MAX_SMP > 1 -static LWS_INLINE void -lws_pt_mutex_init(struct lws_context_per_thread *pt) -{ - pthread_mutex_init(&pt->lock, NULL); -} - -static LWS_INLINE void -lws_pt_mutex_destroy(struct lws_context_per_thread *pt) -{ - pthread_mutex_destroy(&pt->lock); -} - -static LWS_INLINE void -lws_pt_lock(struct lws_context_per_thread *pt) -{ - if (!pt->lock_depth++) - pthread_mutex_lock(&pt->lock); -} - -static LWS_INLINE void -lws_pt_unlock(struct lws_context_per_thread *pt) -{ - if (!(--pt->lock_depth)) - pthread_mutex_unlock(&pt->lock); -} -static LWS_INLINE void -lws_context_lock(struct lws_context *context) -{ - if (!context->lock_depth++) - pthread_mutex_lock(&context->lock); -} - -static LWS_INLINE void -lws_context_unlock(struct lws_context *context) -{ - if (!(--context->lock_depth)) - pthread_mutex_unlock(&context->lock); -} - -#else -#define lws_pt_mutex_init(_a) (void)(_a) -#define lws_pt_mutex_destroy(_a) (void)(_a) -#define lws_pt_lock(_a) (void)(_a) -#define lws_pt_unlock(_a) (void)(_a) -#define lws_context_lock(_a) (void)(_a) -#define lws_context_unlock(_a) (void)(_a) -#endif - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ssl_capable_read_no_ssl(struct lws *wsi, unsigned char *buf, int len); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ssl_capable_write_no_ssl(struct lws *wsi, unsigned char *buf, int len); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_ssl_pending_no_ssl(struct lws *wsi); - -#ifdef LWS_WITH_HTTP_PROXY -struct lws_rewrite { - hubbub_parser *parser; - hubbub_parser_optparams params; - const char *from, *to; - int from_len, to_len; - unsigned char *p, *end; - struct lws *wsi; -}; -static LWS_INLINE int hstrcmp(hubbub_string *s, const char *p, int len) -{ - if (s->len != len) - return 1; - - return strncmp((const char *)s->ptr, p, len); -} -typedef hubbub_error (*hubbub_callback_t)(const hubbub_token *token, void *pw); -LWS_EXTERN struct lws_rewrite * -lws_rewrite_create(struct lws *wsi, hubbub_callback_t cb, const char *from, const char *to); -LWS_EXTERN void -lws_rewrite_destroy(struct lws_rewrite *r); -LWS_EXTERN int -lws_rewrite_parse(struct lws_rewrite *r, const unsigned char *in, int in_len); -#endif - -#ifndef LWS_NO_CLIENT -LWS_EXTERN int lws_client_socket_service(struct lws_context *context, - struct lws *wsi, - struct lws_pollfd *pollfd); -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_http_transaction_completed_client(struct lws *wsi); -#ifdef LWS_OPENSSL_SUPPORT -LWS_EXTERN int -lws_context_init_client_ssl(struct lws_context_creation_info *info, - struct lws_vhost *vhost); - -LWS_EXTERN void -lws_ssl_info_callback(const SSL *ssl, int where, int ret); - -#else - #define lws_context_init_client_ssl(_a, _b) (0) -#endif -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_handshake_client(struct lws *wsi, unsigned char **buf, size_t len); -LWS_EXTERN void -lws_decode_ssl_error(void); -#else -#define lws_context_init_client_ssl(_a, _b) (0) -#define lws_handshake_client(_a, _b, _c) (0) -#endif - -LWS_EXTERN int -_lws_rx_flow_control(struct lws *wsi); - -LWS_EXTERN int -_lws_change_pollfd(struct lws *wsi, int _and, int _or, struct lws_pollargs *pa); - -#ifndef LWS_NO_SERVER -LWS_EXTERN int -lws_server_socket_service(struct lws_context *context, struct lws *wsi, - struct lws_pollfd *pollfd); -LWS_EXTERN int -lws_handshake_server(struct lws *wsi, unsigned char **buf, size_t len); -#else -#define lws_server_socket_service(_a, _b, _c) (0) -#define lws_handshake_server(_a, _b, _c) (0) -#endif - -#ifdef LWS_WITH_ACCESS_LOG -LWS_EXTERN int -lws_access_log(struct lws *wsi); -LWS_EXTERN void -lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int meth); -#else -#define lws_access_log(_a) -#endif - -LWS_EXTERN int -lws_cgi_kill_terminated(struct lws_context_per_thread *pt); - -LWS_EXTERN void -lws_cgi_remove_and_kill(struct lws *wsi); - -int -lws_protocol_init(struct lws_context *context); - -int -lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p); - -const struct lws_http_mount * -lws_find_mount(struct lws *wsi, const char *uri_ptr, int uri_len); - -/* - * custom allocator - */ -LWS_EXTERN void * -lws_realloc(void *ptr, size_t size, const char *reason); - -LWS_EXTERN void * LWS_WARN_UNUSED_RESULT -lws_zalloc(size_t size, const char *reason); - -#ifdef LWS_PLAT_OPTEE -void *lws_malloc(size_t size, const char *reason); -void lws_free(void *p); -#define lws_free_set_NULL(P) do { lws_free(P); (P) = NULL; } while(0) -#else -#define lws_malloc(S, R) lws_realloc(NULL, S, R) -#define lws_free(P) lws_realloc(P, 0, "lws_free") -#define lws_free_set_NULL(P) do { lws_realloc(P, 0, "free"); (P) = NULL; } while(0) -#endif - -const struct lws_plat_file_ops * -lws_vfs_select_fops(const struct lws_plat_file_ops *fops, const char *vfs_path, - const char **vpath); - -/* lws_plat_ */ -LWS_EXTERN void -lws_plat_delete_socket_from_fds(struct lws_context *context, - struct lws *wsi, int m); -LWS_EXTERN void -lws_plat_insert_socket_into_fds(struct lws_context *context, - struct lws *wsi); -LWS_EXTERN void -lws_plat_service_periodic(struct lws_context *context); - -LWS_EXTERN int -lws_plat_change_pollfd(struct lws_context *context, struct lws *wsi, - struct lws_pollfd *pfd); -LWS_EXTERN void -lws_add_wsi_to_draining_ext_list(struct lws *wsi); -LWS_EXTERN void -lws_remove_wsi_from_draining_ext_list(struct lws *wsi); -LWS_EXTERN int -lws_plat_context_early_init(void); -LWS_EXTERN void -lws_plat_context_early_destroy(struct lws_context *context); -LWS_EXTERN void -lws_plat_context_late_destroy(struct lws_context *context); -LWS_EXTERN int -lws_poll_listen_fd(struct lws_pollfd *fd); -LWS_EXTERN int -lws_plat_service(struct lws_context *context, int timeout_ms); -LWS_EXTERN LWS_VISIBLE int -_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi); -LWS_EXTERN int -lws_plat_init(struct lws_context *context, - struct lws_context_creation_info *info); -LWS_EXTERN void -lws_plat_drop_app_privileges(struct lws_context_creation_info *info); -LWS_EXTERN unsigned long long -time_in_microseconds(void); -LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT -lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt); -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_plat_inet_pton(int af, const char *src, void *dst); - -LWS_EXTERN int LWS_WARN_UNUSED_RESULT -lws_check_utf8(unsigned char *state, unsigned char *buf, size_t len); -LWS_EXTERN int alloc_file(struct lws_context *context, const char *filename, uint8_t **buf, - lws_filepos_t *amount); -LWS_EXTERN int alloc_pem_to_der_file(struct lws_context *context, const char *filename, uint8_t **buf, - lws_filepos_t *amount); - -LWS_EXTERN void -lws_same_vh_protocol_remove(struct lws *wsi); -LWS_EXTERN void -lws_same_vh_protocol_insert(struct lws *wsi, int n); - -#if defined(LWS_WITH_STATS) -void -lws_stats_atomic_bump(struct lws_context * context, - struct lws_context_per_thread *pt, int index, uint64_t bump); -void -lws_stats_atomic_max(struct lws_context * context, - struct lws_context_per_thread *pt, int index, uint64_t val); -#else -static inline uint64_t lws_stats_atomic_bump(struct lws_context * context, - struct lws_context_per_thread *pt, int index, uint64_t bump) { - (void)context; (void)pt; (void)index; (void)bump; return 0; } -static inline uint64_t lws_stats_atomic_max(struct lws_context * context, - struct lws_context_per_thread *pt, int index, uint64_t val) { - (void)context; (void)pt; (void)index; (void)val; return 0; } -#endif - -/* socks */ -void socks_generate_msg(struct lws *wsi, enum socks_msg_type type, - ssize_t *msg_len); - -#if defined(LWS_WITH_PEER_LIMITS) -void -lws_peer_track_wsi_close(struct lws_context *context, struct lws_peer *peer); -int -lws_peer_confirm_ah_attach_ok(struct lws_context *context, struct lws_peer *peer); -void -lws_peer_track_ah_detach(struct lws_context *context, struct lws_peer *peer); -void -lws_peer_cull_peer_wait_list(struct lws_context *context); -struct lws_peer * -lws_get_or_create_peer(struct lws_vhost *vhost, lws_sockfd_type sockfd); -void -lws_peer_add_wsi(struct lws_context *context, struct lws_peer *peer, - struct lws *wsi); -#endif - -#ifdef __cplusplus -}; -#endif |