1952 lines
50 KiB
C
1952 lines
50 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2016 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include "lws_config.h"
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#include "lws_config_private.h"
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#if defined(LWS_WITH_CGI) && defined(LWS_HAVE_VFORK)
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#define _GNU_SOURCE
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#endif
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#ifdef LWS_HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdarg.h>
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#if defined(LWS_WITH_ESP8266)
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#include <user_interface.h>
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#define assert(n)
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/* rom-provided stdc functions for free, ensure use these instead of libc ones */
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int ets_vsprintf(char *str, const char *format, va_list argptr);
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int ets_vsnprintf(char *buffer, size_t sizeOfBuffer, const char *format, va_list argptr);
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int ets_snprintf(char *str, size_t size, const char *format, ...);
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int ets_sprintf(char *str, const char *format, ...);
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int os_printf_plus(const char *format, ...);
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#undef malloc
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#undef realloc
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#undef free
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void *pvPortMalloc(size_t s, const char *f, int line);
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#define malloc(s) pvPortMalloc(s, "", 0)
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void *pvPortRealloc(void *p, size_t s, const char *f, int line);
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#define realloc(p, s) pvPortRealloc(p, s, "", 0)
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void vPortFree(void *p, const char *f, int line);
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#define free(p) vPortFree(p, "", 0)
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#undef memcpy
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void *ets_memcpy(void *dest, const void *src, size_t n);
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#define memcpy ets_memcpy
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void *ets_memset(void *dest, int v, size_t n);
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#define memset ets_memset
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char *ets_strcpy(char *dest, const char *src);
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#define strcpy ets_strcpy
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char *ets_strncpy(char *dest, const char *src, size_t n);
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#define strncpy ets_strncpy
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char *ets_strstr(const char *haystack, const char *needle);
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#define strstr ets_strstr
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int ets_strcmp(const char *s1, const char *s2);
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int ets_strncmp(const char *s1, const char *s2, size_t n);
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#define strcmp ets_strcmp
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#define strncmp ets_strncmp
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size_t ets_strlen(const char *s);
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#define strlen ets_strlen
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void *ets_memmove(void *dest, const void *src, size_t n);
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#define memmove ets_memmove
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char *ets_strchr(const char *s, int c);
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#define strchr_ets_strchr
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#undef _DEBUG
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#include <osapi.h>
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#else
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#define STORE_IN_ROM
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#include <assert.h>
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#endif
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#if LWS_MAX_SMP > 1
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#include <pthread.h>
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#endif
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#ifdef LWS_HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#if defined(WIN32) || defined(_WIN32)
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#if (WINVER < 0x0501)
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#undef WINVER
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#undef _WIN32_WINNT
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#define WINVER 0x0501
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#define _WIN32_WINNT WINVER
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#endif
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#define LWS_NO_DAEMONIZE
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#define LWS_ERRNO WSAGetLastError()
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#define LWS_EAGAIN WSAEWOULDBLOCK
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#define LWS_EALREADY WSAEALREADY
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#define LWS_EINPROGRESS WSAEINPROGRESS
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#define LWS_EINTR WSAEINTR
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#define LWS_EISCONN WSAEISCONN
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#define LWS_EWOULDBLOCK WSAEWOULDBLOCK
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#define MSG_NOSIGNAL 0
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#define SHUT_RDWR SD_BOTH
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#define SOL_TCP IPPROTO_TCP
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#define SHUT_WR SD_SEND
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#define compatible_close(fd) closesocket(fd)
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#define lws_set_blocking_send(wsi) wsi->sock_send_blocking = 1
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#define lws_socket_is_valid(x) (!!x)
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#define LWS_SOCK_INVALID 0
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#include <windows.h>
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#include <tchar.h>
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#ifdef LWS_HAVE_IN6ADDR_H
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#include <in6addr.h>
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#endif
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#include <mstcpip.h>
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#include <io.h>
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#ifndef __func__
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#define __func__ __FUNCTION__
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#endif
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#if (defined(_MSC_VER) && _MSC_VER < 1900) || defined(_WIN32_WCE)
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#define vsnprintf _vsnprintf
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#else
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#ifdef LWS_HAVE__VSNPRINTF
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#define vsnprintf _vsnprintf
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#endif
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#endif
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#ifdef LWS_HAVE__SNPRINTF
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#define lws_snprintf _snprintf
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#endif
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#else /* not windows --> */
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#include <fcntl.h>
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#include <strings.h>
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#include <unistd.h>
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#include <sys/types.h>
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#ifndef MBED_OPERATORS
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#ifndef __cplusplus
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#include <errno.h>
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#endif
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#include <netdb.h>
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#include <signal.h>
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#ifdef LWS_WITH_ESP8266
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#include <sockets.h>
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#define vsnprintf ets_vsnprintf
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#define snprintf ets_snprintf
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#define sprintf ets_sprintf
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#else
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#include <sys/socket.h>
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#endif
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#ifdef LWS_WITH_HTTP_PROXY
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#include <hubbub/hubbub.h>
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#include <hubbub/parser.h>
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#endif
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#if defined(LWS_BUILTIN_GETIFADDRS)
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#include <getifaddrs.h>
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#else
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#if !defined(LWS_WITH_ESP8266)
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#include <ifaddrs.h>
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#endif
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#endif
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#if defined (__ANDROID__)
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#include <syslog.h>
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#include <sys/resource.h>
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#elif defined (__sun)
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#include <syslog.h>
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#else
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#if !defined(LWS_WITH_ESP8266)
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#include <sys/syslog.h>
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#endif
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#endif
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#include <netdb.h>
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#if !defined(LWS_WITH_ESP8266)
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#include <sys/mman.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <poll.h>
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#endif
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#ifdef LWS_USE_LIBEV
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#include <ev.h>
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#endif
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#ifdef LWS_USE_LIBUV
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#include <uv.h>
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#endif
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#endif /* MBED */
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#ifndef LWS_NO_FORK
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#ifdef LWS_HAVE_SYS_PRCTL_H
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#include <sys/prctl.h>
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#endif
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#endif
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#include <sys/time.h>
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#define LWS_ERRNO errno
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#define LWS_EAGAIN EAGAIN
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#define LWS_EALREADY EALREADY
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#define LWS_EINPROGRESS EINPROGRESS
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#define LWS_EINTR EINTR
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#define LWS_EISCONN EISCONN
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#define LWS_EWOULDBLOCK EWOULDBLOCK
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#define lws_set_blocking_send(wsi)
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#if defined(MBED_OPERATORS) || defined(LWS_WITH_ESP8266)
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#define lws_socket_is_valid(x) ((x) != NULL)
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#define LWS_SOCK_INVALID (NULL)
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struct lws;
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const char *
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lws_plat_get_peer_simple(struct lws *wsi, char *name, int namelen);
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#else
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#define lws_socket_is_valid(x) (x >= 0)
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#define LWS_SOCK_INVALID (-1)
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#endif
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#endif
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#ifndef LWS_HAVE_BZERO
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#ifndef bzero
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#define bzero(b, len) (memset((b), '\0', (len)), (void) 0)
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#endif
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#endif
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#ifndef LWS_HAVE_STRERROR
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#define strerror(x) ""
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#endif
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#ifdef LWS_OPENSSL_SUPPORT
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#ifdef USE_WOLFSSL
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#ifdef USE_OLD_CYASSL
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#include <cyassl/openssl/ssl.h>
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#include <cyassl/error-ssl.h>
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#else
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#include <wolfssl/openssl/ssl.h>
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#include <wolfssl/error-ssl.h>
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#endif /* not USE_OLD_CYASSL */
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#else
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#if defined(LWS_USE_POLARSSL)
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#include <polarssl/ssl.h>
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#include <polarssl/error.h>
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#include <polarssl/md5.h>
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#include <polarssl/sha1.h>
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#include <polarssl/ecdh.h>
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#define SSL_ERROR_WANT_READ POLARSSL_ERR_NET_WANT_READ
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#define SSL_ERROR_WANT_WRITE POLARSSL_ERR_NET_WANT_WRITE
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#define OPENSSL_VERSION_NUMBER 0x10002000L
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#else
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#if defined(LWS_USE_MBEDTLS)
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#include <mbedtls/ssl.h>
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#include <mbedtls/error.h>
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#include <mbedtls/md5.h>
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#include <mbedtls/sha1.h>
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#include <mbedtls/ecdh.h>
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#else
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#include <openssl/ssl.h>
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#include <openssl/evp.h>
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#include <openssl/err.h>
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#include <openssl/md5.h>
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#include <openssl/sha.h>
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#ifdef LWS_HAVE_OPENSSL_ECDH_H
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#include <openssl/ecdh.h>
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#endif
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#include <openssl/x509v3.h>
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#endif /* not USE_MBEDTLS */
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#endif /* not USE_POLARSSL */
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#endif /* not USE_WOLFSSL */
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#endif
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#include "libwebsockets.h"
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#if defined(WIN32) || defined(_WIN32)
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#else
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static inline int compatible_close(int fd) { return close(fd); }
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#endif
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#if defined(WIN32) || defined(_WIN32)
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#include <gettimeofday.h>
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#endif
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#if defined(MBED_OPERATORS)
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#undef compatible_close
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#define compatible_close(fd) mbed3_delete_tcp_stream_socket(fd)
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */
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#endif
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifndef BYTE_ORDER
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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#if defined(LWS_WITH_ESP8266)
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#undef compatible_close
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#define compatible_close(fd) { fd->state=ESPCONN_CLOSE; espconn_delete(fd); }
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lws_sockfd_type
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esp8266_create_tcp_stream_socket(void);
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void
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esp8266_tcp_stream_bind(lws_sockfd_type fd, int port, struct lws *wsi);
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */
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#endif
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifndef BYTE_ORDER
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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#if defined(WIN32) || defined(_WIN32)
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */
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#endif
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifndef BYTE_ORDER
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#ifndef u_int64_t
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typedef unsigned __int64 u_int64_t;
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#endif
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#undef __P
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#ifndef __P
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#if __STDC__
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#define __P(protos) protos
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#else
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#define __P(protos) ()
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#endif
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#endif
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#else
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#include <sys/stat.h>
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#include <sys/time.h>
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#if defined(__APPLE__)
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#include <machine/endian.h>
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#elif defined(__FreeBSD__)
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#include <sys/endian.h>
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#elif defined(__linux__)
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#include <endian.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(__QNX__)
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#include <gulliver.h>
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#if defined(__LITTLEENDIAN__)
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#define BYTE_ORDER __LITTLEENDIAN__
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#define LITTLE_ENDIAN __LITTLEENDIAN__
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#define BIG_ENDIAN 4321 /* to show byte order (taken from gcc); for suppres warning that BIG_ENDIAN is not defined. */
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#endif
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#if defined(__BIGENDIAN__)
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#define BYTE_ORDER __BIGENDIAN__
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#define LITTLE_ENDIAN 1234 /* to show byte order (taken from gcc); for suppres warning that LITTLE_ENDIAN is not defined. */
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#define BIG_ENDIAN __BIGENDIAN__
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#endif
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#endif
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#if defined(__sun) && defined(__GNUC__)
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# define BYTE_ORDER __BYTE_ORDER__
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# define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
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# define BIG_ENDIAN __ORDER_BIG_ENDIAN__
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#endif
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#if !defined(BYTE_ORDER)
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# define BYTE_ORDER __BYTE_ORDER
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#endif
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#if !defined(LITTLE_ENDIAN)
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# define LITTLE_ENDIAN __LITTLE_ENDIAN
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#endif
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#if !defined(BIG_ENDIAN)
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# define BIG_ENDIAN __BIG_ENDIAN
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#endif
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#endif
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/*
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* Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag,
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* but happily have something equivalent in the SO_NOSIGPIPE flag.
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*/
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#ifdef __APPLE__
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#define MSG_NOSIGNAL SO_NOSIGPIPE
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#endif
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/*
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* Solaris 11.X only supports POSIX 2001, MSG_NOSIGNAL appears in
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* POSIX 2008.
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*/
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#ifdef __sun
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#define MSG_NOSIGNAL 0
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#endif
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#ifdef _WIN32
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#ifndef FD_HASHTABLE_MODULUS
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#define FD_HASHTABLE_MODULUS 32
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#endif
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#endif
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#ifndef LWS_DEF_HEADER_LEN
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#define LWS_DEF_HEADER_LEN 4096
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#endif
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#ifndef LWS_DEF_HEADER_POOL
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#define LWS_DEF_HEADER_POOL 4
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#endif
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#ifndef LWS_MAX_PROTOCOLS
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#define LWS_MAX_PROTOCOLS 5
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#endif
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#ifndef LWS_MAX_EXTENSIONS_ACTIVE
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#define LWS_MAX_EXTENSIONS_ACTIVE 2
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#endif
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#ifndef LWS_MAX_EXT_OFFERS
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#define LWS_MAX_EXT_OFFERS 8
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#endif
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#ifndef SPEC_LATEST_SUPPORTED
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#define SPEC_LATEST_SUPPORTED 13
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#endif
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#ifndef AWAITING_TIMEOUT
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#define AWAITING_TIMEOUT 20
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#endif
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#ifndef CIPHERS_LIST_STRING
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#define CIPHERS_LIST_STRING "DEFAULT"
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#endif
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#ifndef LWS_SOMAXCONN
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#define LWS_SOMAXCONN SOMAXCONN
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#endif
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#define MAX_WEBSOCKET_04_KEY_LEN 128
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#ifndef SYSTEM_RANDOM_FILEPATH
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#define SYSTEM_RANDOM_FILEPATH "/dev/urandom"
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#endif
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enum lws_websocket_opcodes_07 {
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LWSWSOPC_CONTINUATION = 0,
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LWSWSOPC_TEXT_FRAME = 1,
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LWSWSOPC_BINARY_FRAME = 2,
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LWSWSOPC_NOSPEC__MUX = 7,
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/* control extensions 8+ */
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LWSWSOPC_CLOSE = 8,
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LWSWSOPC_PING = 9,
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LWSWSOPC_PONG = 0xa,
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};
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enum lws_connection_states {
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LWSS_HTTP,
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LWSS_HTTP_ISSUING_FILE,
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LWSS_HTTP_HEADERS,
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LWSS_HTTP_BODY,
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LWSS_DEAD_SOCKET,
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LWSS_ESTABLISHED,
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LWSS_CLIENT_HTTP_ESTABLISHED,
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LWSS_CLIENT_UNCONNECTED,
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LWSS_RETURNED_CLOSE_ALREADY,
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LWSS_AWAITING_CLOSE_ACK,
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LWSS_FLUSHING_STORED_SEND_BEFORE_CLOSE,
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LWSS_SHUTDOWN,
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LWSS_HTTP2_AWAIT_CLIENT_PREFACE,
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LWSS_HTTP2_ESTABLISHED_PRE_SETTINGS,
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LWSS_HTTP2_ESTABLISHED,
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LWSS_CGI,
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};
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enum http_version {
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HTTP_VERSION_1_0,
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HTTP_VERSION_1_1,
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HTTP_VERSION_2
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};
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enum http_connection_type {
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HTTP_CONNECTION_CLOSE,
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HTTP_CONNECTION_KEEP_ALIVE
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};
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enum lws_pending_protocol_send {
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LWS_PPS_NONE,
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LWS_PPS_HTTP2_MY_SETTINGS,
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LWS_PPS_HTTP2_ACK_SETTINGS,
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LWS_PPS_HTTP2_PONG,
|
|
};
|
|
|
|
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,
|
|
|
|
/* special internal types */
|
|
LWSCM_SERVER_LISTENER,
|
|
LWSCM_CGI, /* stdin, stdout, stderr for another cgi master wsi */
|
|
|
|
/* 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,
|
|
|
|
/****** add new things just above ---^ ******/
|
|
|
|
|
|
};
|
|
|
|
enum {
|
|
LWS_RXFLOW_ALLOW = (1 << 0),
|
|
LWS_RXFLOW_PENDING_CHANGE = (1 << 1),
|
|
};
|
|
|
|
/* 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_USE_LIBEV) || defined(LWS_USE_LIBUV)
|
|
|
|
struct lws_io_watcher {
|
|
#ifdef LWS_USE_LIBEV
|
|
ev_io ev_watcher;
|
|
#endif
|
|
#ifdef LWS_USE_LIBUV
|
|
uv_poll_t uv_watcher;
|
|
#endif
|
|
struct lws_context *context;
|
|
};
|
|
|
|
struct lws_signal_watcher {
|
|
#ifdef LWS_USE_LIBEV
|
|
ev_signal ev_watcher;
|
|
#endif
|
|
#ifdef LWS_USE_LIBUV
|
|
uv_signal_t uv_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.
|
|
*/
|
|
|
|
struct lws_fragments {
|
|
unsigned int offset;
|
|
unsigned short len;
|
|
unsigned char nfrag; /* which ah->frag[] continues this content, or 0 */
|
|
};
|
|
|
|
/*
|
|
* 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 lws *wsi; /* owner */
|
|
char *data; /* prepared by context init to point to dedicated storage */
|
|
/*
|
|
* the randomly ordered fragments, indexed by frag_index and
|
|
* lws_fragments->nfrag for continuation.
|
|
*/
|
|
struct lws_fragments frags[WSI_TOKEN_COUNT * 2];
|
|
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[]
|
|
*/
|
|
unsigned char frag_index[WSI_TOKEN_COUNT];
|
|
unsigned char rx[2048];
|
|
unsigned int rxpos;
|
|
unsigned int rxlen;
|
|
unsigned int pos;
|
|
|
|
unsigned int http_response;
|
|
|
|
#ifndef LWS_NO_CLIENT
|
|
char initial_handshake_hash_base64[30];
|
|
#endif
|
|
|
|
unsigned char in_use;
|
|
unsigned char 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;
|
|
#ifdef LWS_USE_LIBUV
|
|
struct lws_context *context;
|
|
#endif
|
|
#ifdef LWS_WITH_CGI
|
|
struct lws_cgi *cgi_list;
|
|
#endif
|
|
void *http_header_data;
|
|
struct allocated_headers *ah_pool;
|
|
struct lws *ah_wait_list;
|
|
int ah_wait_list_length;
|
|
#ifdef LWS_OPENSSL_SUPPORT
|
|
struct lws *pending_read_list; /* linked list */
|
|
#endif
|
|
#ifndef LWS_NO_SERVER
|
|
struct lws *wsi_listening;
|
|
#endif
|
|
#if defined(LWS_USE_LIBEV)
|
|
struct ev_loop *io_loop_ev;
|
|
#endif
|
|
#if defined(LWS_USE_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_USE_LIBEV)
|
|
struct lws_io_watcher w_accept;
|
|
#endif
|
|
#if defined(LWS_USE_LIBEV) || defined(LWS_USE_LIBUV)
|
|
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;
|
|
|
|
short ah_count_in_use;
|
|
unsigned char tid;
|
|
unsigned char lock_depth;
|
|
};
|
|
|
|
/*
|
|
* 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];
|
|
#endif
|
|
#if defined(LWS_WITH_ESP8266)
|
|
/* listen sockets need a place to hang their hat */
|
|
esp_tcp tcp;
|
|
#endif
|
|
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;
|
|
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
|
|
#ifndef LWS_NO_EXTENSIONS
|
|
const struct lws_extension *extensions;
|
|
#endif
|
|
unsigned long long rx, tx;
|
|
unsigned long conn, trans, ws_upgrades, http2_upgrades;
|
|
|
|
int listen_port;
|
|
unsigned int http_proxy_port;
|
|
unsigned int options;
|
|
int count_protocols;
|
|
int ka_time;
|
|
int ka_probes;
|
|
int ka_interval;
|
|
int keepalive_timeout;
|
|
#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 char default_protocol_index;
|
|
};
|
|
|
|
/*
|
|
* 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;
|
|
struct lws_plat_file_ops fops;
|
|
struct lws_context_per_thread pt[LWS_MAX_SMP];
|
|
#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_plugin *plugin_list;
|
|
const struct lws_token_limits *token_limits;
|
|
void *user_space;
|
|
const char *server_string;
|
|
const struct lws_protocol_vhost_options *reject_service_keywords;
|
|
|
|
#if defined(LWS_USE_LIBEV)
|
|
lws_ev_signal_cb_t * lws_ev_sigint_cb;
|
|
#endif
|
|
#if defined(LWS_USE_LIBUV)
|
|
uv_signal_cb lws_uv_sigint_cb;
|
|
#endif
|
|
char canonical_hostname[128];
|
|
#ifdef LWS_LATENCY
|
|
unsigned long worst_latency;
|
|
char worst_latency_info[256];
|
|
#endif
|
|
|
|
int max_fds;
|
|
#if defined(LWS_USE_LIBEV) || defined(LWS_USE_LIBUV)
|
|
int use_ev_sigint;
|
|
#endif
|
|
int started_with_parent;
|
|
int uid, gid;
|
|
|
|
int fd_random;
|
|
#ifdef LWS_OPENSSL_SUPPORT
|
|
#define lws_ssl_anybody_has_buffered_read(w) \
|
|
(w->vhost->use_ssl && \
|
|
w->context->pt[(int)w->tsi].pending_read_list)
|
|
#define lws_ssl_anybody_has_buffered_read_tsi(c, t) \
|
|
(/*c->use_ssl && */ \
|
|
c->pt[(int)t].pending_read_list)
|
|
#else
|
|
#define lws_ssl_anybody_has_buffered_read(ctx) (0)
|
|
#define lws_ssl_anybody_has_buffered_read_tsi(ctx, t) (0)
|
|
#endif
|
|
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;
|
|
|
|
/*
|
|
* 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 int being_destroyed:1;
|
|
unsigned int requested_kill:1;
|
|
unsigned int protocol_init_done:1;
|
|
};
|
|
|
|
#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_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_USE_LIBEV)
|
|
LWS_EXTERN void
|
|
lws_libev_accept(struct lws *new_wsi, lws_sockfd_type accept_fd);
|
|
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
|
|
#define lws_feature_status_libev(_a) \
|
|
lwsl_notice("libev support not compiled in\n")
|
|
#else
|
|
#define lws_feature_status_libev(_a)
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(LWS_USE_LIBUV)
|
|
LWS_EXTERN void
|
|
lws_libuv_accept(struct lws *new_wsi, lws_sockfd_type accept_fd);
|
|
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);
|
|
#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
|
|
#define lws_feature_status_libuv(_a) \
|
|
lwsl_notice("libuv support not compiled in\n")
|
|
#else
|
|
#define lws_feature_status_libuv(_a)
|
|
#endif
|
|
#endif
|
|
|
|
|
|
#ifdef LWS_USE_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_USE_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[1024];
|
|
char host[256];
|
|
char origin[256];
|
|
char protocol[256];
|
|
char method[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;
|
|
#ifndef LWS_NO_CLIENT
|
|
unsigned short c_port;
|
|
#endif
|
|
char esc_stash;
|
|
char post_literal_equal;
|
|
unsigned char parser_state; /* enum lws_token_indexes */
|
|
char redirects;
|
|
};
|
|
|
|
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;
|
|
unsigned long filepos;
|
|
unsigned long filelen;
|
|
lws_filefd_type fd;
|
|
|
|
enum http_version request_version;
|
|
enum http_connection_type connection_type;
|
|
unsigned int content_length;
|
|
unsigned int content_remain;
|
|
};
|
|
|
|
#ifdef LWS_USE_HTTP2
|
|
|
|
enum lws_http2_settings {
|
|
LWS_HTTP2_SETTINGS__HEADER_TABLE_SIZE = 1,
|
|
LWS_HTTP2_SETTINGS__ENABLE_PUSH,
|
|
LWS_HTTP2_SETTINGS__MAX_CONCURRENT_STREAMS,
|
|
LWS_HTTP2_SETTINGS__INITIAL_WINDOW_SIZE,
|
|
LWS_HTTP2_SETTINGS__MAX_FRAME_SIZE,
|
|
LWS_HTTP2_SETTINGS__MAX_HEADER_LIST_SIZE,
|
|
|
|
LWS_HTTP2_SETTINGS__COUNT /* always last */
|
|
};
|
|
|
|
enum lws_http2_wellknown_frame_types {
|
|
LWS_HTTP2_FRAME_TYPE_DATA,
|
|
LWS_HTTP2_FRAME_TYPE_HEADERS,
|
|
LWS_HTTP2_FRAME_TYPE_PRIORITY,
|
|
LWS_HTTP2_FRAME_TYPE_RST_STREAM,
|
|
LWS_HTTP2_FRAME_TYPE_SETTINGS,
|
|
LWS_HTTP2_FRAME_TYPE_PUSH_PROMISE,
|
|
LWS_HTTP2_FRAME_TYPE_PING,
|
|
LWS_HTTP2_FRAME_TYPE_GOAWAY,
|
|
LWS_HTTP2_FRAME_TYPE_WINDOW_UPDATE,
|
|
LWS_HTTP2_FRAME_TYPE_CONTINUATION,
|
|
|
|
LWS_HTTP2_FRAME_TYPE_COUNT /* always last */
|
|
};
|
|
|
|
enum lws_http2_flags {
|
|
LWS_HTTP2_FLAG_END_STREAM = 1,
|
|
LWS_HTTP2_FLAG_END_HEADERS = 4,
|
|
LWS_HTTP2_FLAG_PADDED = 8,
|
|
LWS_HTTP2_FLAG_PRIORITY = 0x20,
|
|
|
|
LWS_HTTP2_FLAG_SETTINGS_ACK = 1,
|
|
};
|
|
|
|
#define LWS_HTTP2_STREAM_ID_MASTER 0
|
|
#define LWS_HTTP2_FRAME_HEADER_LENGTH 9
|
|
#define LWS_HTTP2_SETTINGS_LENGTH 6
|
|
|
|
struct http2_settings {
|
|
unsigned int setting[LWS_HTTP2_SETTINGS__COUNT];
|
|
};
|
|
|
|
enum http2_hpack_state {
|
|
|
|
/* optional before first header block */
|
|
HPKS_OPT_PADDING,
|
|
HKPS_OPT_E_DEPENDENCY,
|
|
HKPS_OPT_WEIGHT,
|
|
|
|
/* header block */
|
|
HPKS_TYPE,
|
|
|
|
HPKS_IDX_EXT,
|
|
|
|
HPKS_HLEN,
|
|
HPKS_HLEN_EXT,
|
|
|
|
HPKS_DATA,
|
|
|
|
/* optional after last header block */
|
|
HKPS_OPT_DISCARD_PADDING,
|
|
};
|
|
|
|
enum http2_hpack_type {
|
|
HPKT_INDEXED_HDR_7,
|
|
HPKT_INDEXED_HDR_6_VALUE_INCR,
|
|
HPKT_LITERAL_HDR_VALUE_INCR,
|
|
HPKT_INDEXED_HDR_4_VALUE,
|
|
HPKT_LITERAL_HDR_VALUE,
|
|
HPKT_SIZE_5
|
|
};
|
|
|
|
struct hpack_dt_entry {
|
|
int token; /* additions that don't map to a token are ignored */
|
|
int arg_offset;
|
|
int arg_len;
|
|
};
|
|
|
|
struct hpack_dynamic_table {
|
|
struct hpack_dt_entry *entries;
|
|
char *args;
|
|
int pos;
|
|
int next;
|
|
int num_entries;
|
|
int args_length;
|
|
};
|
|
|
|
struct _lws_http2_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 http2_settings my_settings;
|
|
struct http2_settings peer_settings;
|
|
|
|
struct lws *parent_wsi;
|
|
struct lws *next_child_wsi;
|
|
|
|
struct hpack_dynamic_table *hpack_dyn_table;
|
|
struct lws *stream_wsi;
|
|
unsigned char ping_payload[8];
|
|
unsigned char one_setting[LWS_HTTP2_SETTINGS_LENGTH];
|
|
|
|
unsigned int count;
|
|
unsigned int length;
|
|
unsigned int stream_id;
|
|
enum http2_hpack_state hpack;
|
|
enum http2_hpack_type hpack_type;
|
|
unsigned int header_index;
|
|
unsigned int hpack_len;
|
|
unsigned int hpack_e_dep;
|
|
int tx_credit;
|
|
unsigned int my_stream_id;
|
|
unsigned int child_count;
|
|
int my_priority;
|
|
|
|
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 waiting_tx_credit:1;
|
|
unsigned int huff:1;
|
|
unsigned int value:1;
|
|
|
|
unsigned short round_robin_POLLOUT;
|
|
unsigned short count_POLLOUT_children;
|
|
unsigned short hpack_pos;
|
|
|
|
unsigned char type;
|
|
unsigned char flags;
|
|
unsigned char frame_state;
|
|
unsigned char padding;
|
|
unsigned char hpack_m;
|
|
unsigned char initialized;
|
|
};
|
|
|
|
#define HTTP2_IS_TOPLEVEL_WSI(wsi) (!wsi->u.http2.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;
|
|
};
|
|
|
|
#ifdef LWS_WITH_CGI
|
|
|
|
/* 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 long content_length;
|
|
unsigned long content_length_seen;
|
|
int pipe_fds[3][2];
|
|
int pid;
|
|
|
|
unsigned int being_closed:1;
|
|
};
|
|
#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
|
|
|
|
struct lws_rewrite;
|
|
|
|
#ifdef LWS_WITH_ACCESS_LOG
|
|
struct lws_access_log {
|
|
char *header_log;
|
|
char *user_agent;
|
|
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_USE_HTTP2
|
|
struct _lws_http2_related http2;
|
|
#endif
|
|
struct _lws_header_related hdr;
|
|
struct _lws_websocket_related ws;
|
|
} u;
|
|
|
|
/* lifetime members */
|
|
|
|
#if defined(LWS_USE_LIBEV) || defined(LWS_USE_LIBUV)
|
|
struct lws_io_watcher w_read;
|
|
#endif
|
|
#if defined(LWS_USE_LIBEV)
|
|
struct lws_io_watcher w_write;
|
|
#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;
|
|
#ifdef LWS_WITH_ACCESS_LOG
|
|
struct lws_access_log access_log;
|
|
#endif
|
|
void *user_space;
|
|
/* 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;
|
|
#if !defined(LWS_USE_POLARSSL) && !defined(LWS_USE_MBEDTLS)
|
|
BIO *client_bio;
|
|
#endif
|
|
struct lws *pending_read_list_prev, *pending_read_list_next;
|
|
#endif
|
|
#ifdef LWS_WITH_HTTP_PROXY
|
|
struct lws_rewrite *rw;
|
|
#endif
|
|
#ifdef LWS_LATENCY
|
|
unsigned long action_start;
|
|
unsigned long latency_start;
|
|
#endif
|
|
/* pointer / int */
|
|
lws_sockfd_type sock;
|
|
|
|
/* ints */
|
|
int position_in_fds_table;
|
|
int rxflow_len;
|
|
int 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 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;
|
|
#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:3;
|
|
unsigned int upgraded:1;
|
|
#endif
|
|
#ifdef _WIN32
|
|
unsigned int sock_send_blocking:1;
|
|
#endif
|
|
#ifdef LWS_OPENSSL_SUPPORT
|
|
unsigned int redirect_to_https:1;
|
|
#endif
|
|
|
|
/* chars */
|
|
#ifndef LWS_NO_EXTENSIONS
|
|
unsigned char count_act_ext;
|
|
#endif
|
|
unsigned char 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 pps; /* enum lws_pending_protocol_send */
|
|
char tsi; /* thread service index we belong to */
|
|
char protocol_interpret_idx;
|
|
#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
|
|
};
|
|
|
|
LWS_EXTERN int log_level;
|
|
|
|
LWS_EXTERN int
|
|
lws_socket_bind(struct lws_vhost *vhost, int sockfd, int port,
|
|
const char *iface);
|
|
|
|
LWS_EXTERN void
|
|
lws_close_free_wsi(struct lws *wsi, enum lws_close_status);
|
|
|
|
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 void
|
|
lws_set_protocol_write_pending(struct lws *wsi,
|
|
enum lws_pending_protocol_send pend);
|
|
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_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(MBED_OPERATORS) || 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->sock] == 0); A->lws_lookup[B->sock]=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 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);
|
|
|
|
/*
|
|
* 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_USE_HTTP2
|
|
LWS_EXTERN struct lws *lws_http2_get_network_wsi(struct lws *wsi);
|
|
struct lws * lws_http2_get_nth_child(struct lws *wsi, int n);
|
|
LWS_EXTERN int
|
|
lws_http2_interpret_settings_payload(struct http2_settings *settings,
|
|
unsigned char *buf, int len);
|
|
LWS_EXTERN void lws_http2_init(struct http2_settings *settings);
|
|
LWS_EXTERN int
|
|
lws_http2_parser(struct lws *wsi, unsigned char c);
|
|
LWS_EXTERN int lws_http2_do_pps_send(struct lws_context *context,
|
|
struct lws *wsi);
|
|
LWS_EXTERN int lws_http2_frame_write(struct lws *wsi, int type, int flags,
|
|
unsigned int sid, unsigned int len,
|
|
unsigned char *buf);
|
|
LWS_EXTERN struct lws *
|
|
lws_http2_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
|
|
void lws_http2_configure_if_upgraded(struct lws *wsi);
|
|
#else
|
|
#define lws_http2_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);
|
|
|
|
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(MBED_OPERATORS) && !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)
|
|
#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);
|
|
#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_USE_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);
|
|
}
|
|
#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)
|
|
#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);
|
|
#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);
|
|
LWS_EXTERN int
|
|
_lws_server_listen_accept_flow_control(struct lws *twsi, int on);
|
|
#else
|
|
#define lws_server_socket_service(_a, _b, _c) (0)
|
|
#define lws_handshake_server(_a, _b, _c) (0)
|
|
#define _lws_server_listen_accept_flow_control(a, b) (0)
|
|
#endif
|
|
|
|
#ifdef LWS_WITH_ACCESS_LOG
|
|
LWS_EXTERN int
|
|
lws_access_log(struct lws *wsi);
|
|
#else
|
|
#define lws_access_log(_a)
|
|
#endif
|
|
|
|
LWS_EXTERN int
|
|
lws_cgi_kill_terminated(struct lws_context_per_thread *pt);
|
|
|
|
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);
|
|
|
|
LWS_EXTERN void * LWS_WARN_UNUSED_RESULT
|
|
lws_zalloc(size_t size);
|
|
|
|
#define lws_malloc(S) lws_realloc(NULL, S)
|
|
#define lws_free(P) lws_realloc(P, 0)
|
|
#define lws_free_set_NULL(P) do { lws_realloc(P, 0); (P) = NULL; } while(0)
|
|
|
|
/* 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 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_check_utf8(unsigned char *state, unsigned char *buf, size_t len);
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#ifdef __cplusplus
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};
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#endif
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