1770 lines
43 KiB
C++
1770 lines
43 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 - 2018 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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#if defined(__COVERITY__) && !defined(LWS_COVERITY_WORKAROUND)
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#define LWS_COVERITY_WORKAROUND
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typedef float _Float32;
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typedef float _Float64;
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typedef float _Float128;
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typedef float _Float32x;
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typedef float _Float64x;
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typedef float _Float128x;
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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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#include <inttypes.h>
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#if defined(LWS_WITH_ESP32)
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#define MSG_NOSIGNAL 0
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#define SOMAXCONN 3
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#endif
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#define STORE_IN_ROM
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#include <assert.h>
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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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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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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_SOCK_INVALID (INVALID_SOCKET)
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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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#if !defined(LWS_HAVE_ATOLL)
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#if defined(LWS_HAVE__ATOI64)
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#define atoll _atoi64
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#else
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#warning No atoll or _atoi64 available, using atoi
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#define atoll atoi
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#endif
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#endif
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#ifndef __func__
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#define __func__ __FUNCTION__
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#endif
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#ifdef LWS_HAVE__VSNPRINTF
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#define vsnprintf _vsnprintf
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#endif
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/* we don't have an implementation for this on windows... */
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int kill(int pid, int sig);
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int fork(void);
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#ifndef SIGINT
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#define SIGINT 2
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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 __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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#include <sys/socket.h>
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#if defined(LWS_BUILTIN_GETIFADDRS)
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#include "./misc/getifaddrs.h"
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#else
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#if !defined(LWS_WITH_ESP32)
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#if defined(__HAIKU__)
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#define _BSD_SOURCE
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#endif
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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) || defined(__HAIKU__) || defined(__QNX__)
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#include <syslog.h>
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#else
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#if !defined(LWS_WITH_ESP32)
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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_ESP32)
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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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#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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#define LWS_SOCK_INVALID (-1)
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#endif /* not windows */
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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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#define lws_socket_is_valid(x) (x != LWS_SOCK_INVALID)
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#include "libwebsockets.h"
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#include "tls/private.h"
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#if defined(WIN32) || defined(_WIN32)
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#include <gettimeofday.h>
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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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#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 /* not windows */
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static LWS_INLINE int compatible_close(int fd) { return close(fd); }
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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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#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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#include <arpa/nameser_compat.h>
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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 __ORDER_LITTLE_ENDIAN__
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#endif
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#if !defined(BIG_ENDIAN)
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#define BIG_ENDIAN __ORDER_BIG_ENDIAN__
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#endif
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#endif /* sun + GNUC */
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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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/*
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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 1
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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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#define LWS_H2_RX_SCRATCH_SIZE 512
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#if defined(WIN32) || defined(_WIN32)
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// Visual studio older than 2015 and WIN_CE has only _stricmp
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#if (defined(_MSC_VER) && _MSC_VER < 1900) || defined(_WIN32_WCE)
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#define strcasecmp _stricmp
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#elif !defined(__MINGW32__)
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#define strcasecmp stricmp
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#endif
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#define getdtablesize() 30000
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#endif
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/*
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* All lws_tls...() functions must return this type, converting the
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* native backend result and doing the extra work to determine which one
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* as needed.
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*
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* Native TLS backend return codes are NOT ALLOWED outside the backend.
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*
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* Non-SSL mode also uses these types.
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*/
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enum lws_ssl_capable_status {
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LWS_SSL_CAPABLE_ERROR = -1, /* it failed */
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LWS_SSL_CAPABLE_DONE = 0, /* it succeeded */
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LWS_SSL_CAPABLE_MORE_SERVICE_READ = -2, /* retry WANT_READ */
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LWS_SSL_CAPABLE_MORE_SERVICE_WRITE = -3, /* retry WANT_WRITE */
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LWS_SSL_CAPABLE_MORE_SERVICE = -4, /* general retry */
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};
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#if defined(__clang__)
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#define lws_memory_barrier() __sync_synchronize()
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#elif defined(__GNUC__)
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#define lws_memory_barrier() __sync_synchronize()
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#else
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#define lws_memory_barrier()
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#endif
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/*
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*
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* ------ roles ------
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*
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*/
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#include "roles/private.h"
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/* null-terminated array of pointers to roles lws built with */
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extern const struct lws_role_ops *available_roles[];
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#define LWS_FOR_EVERY_AVAILABLE_ROLE_START(xx) { \
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const struct lws_role_ops **ppxx = available_roles; \
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while (*ppxx) { \
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const struct lws_role_ops *xx = *ppxx++;
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#define LWS_FOR_EVERY_AVAILABLE_ROLE_END }}
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/*
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*
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* ------ event_loop ops ------
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*
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*/
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#include "event-libs/private.h"
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/* enums of socks version */
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enum socks_version {
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SOCKS_VERSION_4 = 4,
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SOCKS_VERSION_5 = 5
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};
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/* enums of subnegotiation version */
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enum socks_subnegotiation_version {
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SOCKS_SUBNEGOTIATION_VERSION_1 = 1,
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};
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/* enums of socks commands */
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enum socks_command {
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SOCKS_COMMAND_CONNECT = 1,
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SOCKS_COMMAND_BIND = 2,
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SOCKS_COMMAND_UDP_ASSOCIATE = 3
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};
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/* enums of socks address type */
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enum socks_atyp {
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SOCKS_ATYP_IPV4 = 1,
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SOCKS_ATYP_DOMAINNAME = 3,
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SOCKS_ATYP_IPV6 = 4
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};
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/* enums of socks authentication methods */
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enum socks_auth_method {
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SOCKS_AUTH_NO_AUTH = 0,
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SOCKS_AUTH_GSSAPI = 1,
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SOCKS_AUTH_USERNAME_PASSWORD = 2
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};
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/* enums of subnegotiation status */
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enum socks_subnegotiation_status {
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SOCKS_SUBNEGOTIATION_STATUS_SUCCESS = 0,
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};
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/* enums of socks request reply */
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enum socks_request_reply {
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SOCKS_REQUEST_REPLY_SUCCESS = 0,
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SOCKS_REQUEST_REPLY_FAILURE_GENERAL = 1,
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SOCKS_REQUEST_REPLY_CONNECTION_NOT_ALLOWED = 2,
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SOCKS_REQUEST_REPLY_NETWORK_UNREACHABLE = 3,
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SOCKS_REQUEST_REPLY_HOST_UNREACHABLE = 4,
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SOCKS_REQUEST_REPLY_CONNECTION_REFUSED = 5,
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SOCKS_REQUEST_REPLY_TTL_EXPIRED = 6,
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SOCKS_REQUEST_REPLY_COMMAND_NOT_SUPPORTED = 7,
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SOCKS_REQUEST_REPLY_ATYP_NOT_SUPPORTED = 8
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};
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/* enums used to generate socks messages */
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enum socks_msg_type {
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/* greeting */
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SOCKS_MSG_GREETING,
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/* credential, user name and password */
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SOCKS_MSG_USERNAME_PASSWORD,
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/* connect command */
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SOCKS_MSG_CONNECT
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};
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enum {
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LWS_RXFLOW_ALLOW = (1 << 0),
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LWS_RXFLOW_PENDING_CHANGE = (1 << 1),
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};
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struct lws_ring {
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void *buf;
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void (*destroy_element)(void *element);
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uint32_t buflen;
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uint32_t element_len;
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uint32_t head;
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uint32_t oldest_tail;
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};
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struct lws_protocols;
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struct lws;
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struct lws_io_watcher {
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#ifdef LWS_WITH_LIBEV
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struct lws_io_watcher_libev ev;
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#endif
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#ifdef LWS_WITH_LIBUV
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struct lws_io_watcher_libuv uv;
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|
#endif
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#ifdef LWS_WITH_LIBEVENT
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struct lws_io_watcher_libevent event;
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#endif
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struct lws_context *context;
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uint8_t actual_events;
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};
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struct lws_signal_watcher {
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#ifdef LWS_WITH_LIBEV
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struct lws_signal_watcher_libev ev;
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#endif
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#ifdef LWS_WITH_LIBUV
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struct lws_signal_watcher_libuv uv;
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#endif
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#ifdef LWS_WITH_LIBEVENT
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struct lws_signal_watcher_libevent event;
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#endif
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struct lws_context *context;
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};
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|
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#ifdef _WIN32
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#define LWS_FD_HASH(fd) ((fd ^ (fd >> 8) ^ (fd >> 16)) % FD_HASHTABLE_MODULUS)
|
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struct lws_fd_hashtable {
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struct lws **wsi;
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int length;
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};
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#endif
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|
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struct lws_foreign_thread_pollfd {
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struct lws_foreign_thread_pollfd *next;
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int fd_index;
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int _and;
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int _or;
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};
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|
#define LWS_HRTIMER_NOWAIT (0x7fffffffffffffffll)
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|
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/*
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|
* so we can have n connections being serviced simultaneously,
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|
* these things need to be isolated per-thread.
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|
*/
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|
|
|
struct lws_context_per_thread {
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|
#if LWS_MAX_SMP > 1
|
|
pthread_mutex_t lock;
|
|
pthread_mutex_t lock_stats;
|
|
pthread_t lock_owner;
|
|
const char *last_lock_reason;
|
|
#endif
|
|
|
|
struct lws_context *context;
|
|
|
|
/*
|
|
* 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;
|
|
|
|
struct lws_dll_lws dll_head_timeout;
|
|
struct lws_dll_lws dll_head_hrtimer;
|
|
struct lws_dll_lws dll_head_buflist; /* guys with pending rxflow */
|
|
|
|
#if defined(LWS_WITH_TLS)
|
|
struct lws_pt_tls tls;
|
|
#endif
|
|
|
|
struct lws_pollfd *fds;
|
|
volatile struct lws_foreign_thread_pollfd * volatile foreign_pfd_list;
|
|
#ifdef _WIN32
|
|
WSAEVENT *events;
|
|
#endif
|
|
lws_sockfd_type dummy_pipe_fds[2];
|
|
struct lws *pipe_wsi;
|
|
|
|
/* --- role based members --- */
|
|
|
|
#if defined(LWS_ROLE_WS) && !defined(LWS_WITHOUT_EXTENSIONS)
|
|
struct lws_pt_role_ws ws;
|
|
#endif
|
|
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
|
|
struct lws_pt_role_http http;
|
|
#endif
|
|
|
|
/* --- event library based members --- */
|
|
|
|
#if defined(LWS_WITH_LIBEV)
|
|
struct lws_pt_eventlibs_libev ev;
|
|
#endif
|
|
#if defined(LWS_WITH_LIBUV)
|
|
struct lws_pt_eventlibs_libuv uv;
|
|
#endif
|
|
#if defined(LWS_WITH_LIBEVENT)
|
|
struct lws_pt_eventlibs_libevent event;
|
|
#endif
|
|
|
|
#if defined(LWS_WITH_LIBEV) || defined(LWS_WITH_LIBUV) || defined(LWS_WITH_LIBEVENT)
|
|
struct lws_signal_watcher w_sigint;
|
|
#endif
|
|
|
|
/* --- */
|
|
|
|
unsigned long count_conns;
|
|
unsigned int fds_count;
|
|
|
|
volatile unsigned char inside_poll;
|
|
volatile unsigned char foreign_spinlock;
|
|
|
|
unsigned char tid;
|
|
|
|
unsigned char lock_depth;
|
|
unsigned char inside_service:1;
|
|
unsigned char event_loop_foreign:1;
|
|
unsigned char event_loop_destroy_processing_done:1;
|
|
};
|
|
|
|
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);
|
|
|
|
struct lws_timed_vh_protocol {
|
|
struct lws_timed_vh_protocol *next;
|
|
const struct lws_protocols *protocol;
|
|
time_t time;
|
|
int reason;
|
|
};
|
|
|
|
/*
|
|
* 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_WITHOUT_CLIENT)
|
|
char proxy_basic_auth_token[128];
|
|
#endif
|
|
#if LWS_MAX_SMP > 1
|
|
pthread_mutex_t lock;
|
|
#endif
|
|
|
|
#if defined(LWS_ROLE_H2)
|
|
struct lws_vhost_role_h2 h2;
|
|
#endif
|
|
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
|
|
struct lws_vhost_role_http http;
|
|
#endif
|
|
#if defined(LWS_ROLE_WS) && !defined(LWS_WITHOUT_EXTENSIONS)
|
|
struct lws_vhost_role_ws ws;
|
|
#endif
|
|
|
|
#if defined(LWS_WITH_SOCKS5)
|
|
char socks_proxy_address[128];
|
|
char socks_user[96];
|
|
char socks_password[96];
|
|
#endif
|
|
#if defined(LWS_WITH_LIBEV)
|
|
struct lws_io_watcher w_accept;
|
|
#endif
|
|
struct lws_conn_stats conn_stats;
|
|
struct lws_context *context;
|
|
struct lws_vhost *vhost_next;
|
|
|
|
struct lws *lserv_wsi;
|
|
const char *name;
|
|
const char *iface;
|
|
|
|
#if !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;
|
|
struct lws_vhost *no_listener_vhost_list;
|
|
#if !defined(LWS_NO_CLIENT)
|
|
struct lws_dll_lws dll_active_client_conns;
|
|
#endif
|
|
|
|
#if defined(LWS_WITH_TLS)
|
|
struct lws_vhost_tls tls;
|
|
#endif
|
|
|
|
struct lws_timed_vh_protocol *timed_vh_protocol_list;
|
|
void *user;
|
|
|
|
int listen_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;
|
|
|
|
#ifdef LWS_WITH_ACCESS_LOG
|
|
int log_fd;
|
|
#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 total_wsi;
|
|
|
|
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
|
|
struct lws_peer_role_http http;
|
|
#endif
|
|
|
|
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;
|
|
time_t time_discontiguity;
|
|
time_t time_fixup;
|
|
const struct lws_plat_file_ops *fops;
|
|
struct lws_plat_file_ops fops_platform;
|
|
struct lws_context **pcontext_finalize;
|
|
|
|
const struct lws_tls_ops *tls_ops;
|
|
|
|
#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
|
|
struct lws **lws_lookup; /* fd to wsi */
|
|
#endif
|
|
struct lws_vhost *vhost_list;
|
|
struct lws_vhost *no_listener_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 struct lws_protocol_vhost_options *reject_service_keywords;
|
|
lws_reload_func deprecation_cb;
|
|
void (*eventlib_signal_cb)(void *event_lib_handle, int signum);
|
|
|
|
#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)
|
|
struct lws_context_eventlibs_libev ev;
|
|
#endif
|
|
#if defined(LWS_WITH_LIBUV)
|
|
struct lws_context_eventlibs_libuv uv;
|
|
#endif
|
|
#if defined(LWS_WITH_LIBEVENT)
|
|
struct lws_context_eventlibs_libevent event;
|
|
#endif
|
|
struct lws_event_loop_ops *event_loop_ops;
|
|
|
|
|
|
#if defined(LWS_WITH_TLS)
|
|
struct lws_context_tls tls;
|
|
#endif
|
|
|
|
char canonical_hostname[128];
|
|
const char *server_string;
|
|
|
|
#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;
|
|
int count_event_loop_static_asset_handles;
|
|
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 max_http_header_pool;
|
|
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 being_destroyed2:1;
|
|
unsigned int requested_kill:1;
|
|
unsigned int protocol_init_done:1;
|
|
unsigned int doing_protocol_init:1;
|
|
unsigned int done_protocol_destroy_cb:1;
|
|
unsigned int finalize_destroy_after_internal_loops_stopped:1;
|
|
/*
|
|
* 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 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 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);
|
|
|
|
int
|
|
lws_jws_base64_enc(const char *in, size_t in_len, char *out, size_t out_max);
|
|
|
|
void
|
|
lws_vhost_destroy1(struct lws_vhost *vh);
|
|
|
|
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_ESP32)
|
|
LWS_EXTERN int
|
|
lws_find_string_in_file(const char *filename, const char *string, int stringlen);
|
|
#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,
|
|
};
|
|
|
|
|
|
#ifndef LWS_NO_CLIENT
|
|
struct client_info_stash {
|
|
char *address;
|
|
char *path;
|
|
char *host;
|
|
char *origin;
|
|
char *protocol;
|
|
char *method;
|
|
char *iface;
|
|
char *alpn;
|
|
};
|
|
#endif
|
|
|
|
|
|
signed char char_to_hex(const char c);
|
|
|
|
|
|
struct lws_buflist {
|
|
struct lws_buflist *next;
|
|
|
|
size_t len;
|
|
size_t pos;
|
|
|
|
uint8_t buf[1]; /* true length of this is set by the oversize malloc */
|
|
};
|
|
|
|
#define lws_wsi_is_udp(___wsi) (!!___wsi->udp)
|
|
|
|
#define LWS_H2_FRAME_HEADER_LENGTH 9
|
|
|
|
|
|
struct lws {
|
|
/* structs */
|
|
|
|
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
|
|
struct _lws_http_mode_related http;
|
|
#endif
|
|
#if defined(LWS_ROLE_H2)
|
|
struct _lws_h2_related h2;
|
|
#endif
|
|
#if defined(LWS_ROLE_WS)
|
|
struct _lws_websocket_related *ws; /* allocated if we upgrade to ws */
|
|
#endif
|
|
|
|
const struct lws_role_ops *role_ops;
|
|
lws_wsi_state_t wsistate;
|
|
lws_wsi_state_t wsistate_pre_close;
|
|
|
|
/* 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
|
|
|
|
/* 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 */
|
|
|
|
const struct lws_protocols *protocol;
|
|
struct lws **same_vh_protocol_prev, *same_vh_protocol_next;
|
|
|
|
struct lws_dll_lws dll_timeout;
|
|
struct lws_dll_lws dll_hrtimer;
|
|
struct lws_dll_lws dll_buflist; /* guys with pending rxflow */
|
|
|
|
#if defined(LWS_WITH_PEER_LIMITS)
|
|
struct lws_peer *peer;
|
|
#endif
|
|
|
|
struct lws_udp *udp;
|
|
#ifndef LWS_NO_CLIENT
|
|
struct client_info_stash *stash;
|
|
char *client_hostname_copy;
|
|
struct lws_dll_lws dll_active_client_conns;
|
|
struct lws_dll_lws dll_client_transaction_queue_head;
|
|
struct lws_dll_lws dll_client_transaction_queue;
|
|
#endif
|
|
void *user_space;
|
|
void *opaque_parent_data;
|
|
|
|
struct lws_buflist *buflist;
|
|
|
|
/* truncated send handling */
|
|
unsigned char *trunc_alloc; /* non-NULL means buffering in progress */
|
|
|
|
#if defined(LWS_WITH_TLS)
|
|
struct lws_lws_tls tls;
|
|
#endif
|
|
|
|
lws_sock_file_fd_type desc; /* .filefd / .sockfd */
|
|
#if defined(LWS_WITH_STATS)
|
|
uint64_t active_writable_req_us;
|
|
#if defined(LWS_WITH_TLS)
|
|
uint64_t accept_start_us;
|
|
#endif
|
|
#endif
|
|
|
|
lws_usec_t pending_timer; /* hrtimer fires */
|
|
time_t pending_timeout_set; /* second-resolution timeout start */
|
|
|
|
#ifdef LWS_LATENCY
|
|
unsigned long action_start;
|
|
unsigned long latency_start;
|
|
#endif
|
|
|
|
/* ints */
|
|
#define LWS_NO_FDS_POS (-1)
|
|
int position_in_fds_table;
|
|
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 h2_stream_carries_ws: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 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 interpreting:1;
|
|
unsigned int already_did_cce:1;
|
|
unsigned int told_user_closed:1;
|
|
unsigned int told_event_loop_closed:1;
|
|
unsigned int waiting_to_send_close_frame:1;
|
|
unsigned int close_needs_ack: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;
|
|
unsigned int event_pipe:1;
|
|
unsigned int on_same_vh_list:1;
|
|
unsigned int handling_404:1;
|
|
unsigned int protocol_bind_balance:1;
|
|
|
|
unsigned int could_have_pending:1; /* detect back-to-back writes */
|
|
unsigned int outer_will_close:1;
|
|
|
|
#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;
|
|
unsigned int transaction_from_pipeline_queue:1;
|
|
unsigned int keepalive_active:1;
|
|
unsigned int keepalive_rejected:1;
|
|
unsigned int client_pipeline:1;
|
|
unsigned int client_h2_alpn:1;
|
|
unsigned int client_h2_substream:1;
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
unsigned int sock_send_blocking:1;
|
|
#endif
|
|
|
|
#ifndef LWS_NO_CLIENT
|
|
unsigned short c_port;
|
|
#endif
|
|
unsigned short pending_timeout_limit;
|
|
|
|
/* chars */
|
|
|
|
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
|
|
#if defined(LWS_WITH_STATS) && defined(LWS_WITH_TLS)
|
|
char seen_rx;
|
|
#endif
|
|
uint8_t ws_over_h2_count;
|
|
/* volatile to make sure code is aware other thread can change */
|
|
volatile char handling_pollout;
|
|
volatile char leave_pollout_active;
|
|
};
|
|
|
|
#define lws_is_flowcontrolled(w) (!!(wsi->rxflow_bitmap))
|
|
|
|
void
|
|
lws_service_do_ripe_rxflow(struct lws_context_per_thread *pt);
|
|
|
|
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, const char *caller);
|
|
LWS_EXTERN void
|
|
__lws_close_free_wsi(struct lws *wsi, enum lws_close_status, const char *caller);
|
|
|
|
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 LWS_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 LWS_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_ws_client_rx_sm(struct lws *wsi, unsigned char c);
|
|
|
|
LWS_EXTERN int LWS_WARN_UNUSED_RESULT
|
|
lws_parse(struct lws *wsi, unsigned char *buf, int *len);
|
|
|
|
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);
|
|
|
|
LWS_EXTERN int
|
|
lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *p);
|
|
|
|
#if defined(_WIN32)
|
|
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 - lws_plat_socket_offset()]
|
|
#define insert_wsi(A,B) assert(A->lws_lookup[B->desc.sockfd - lws_plat_socket_offset()] == 0); A->lws_lookup[B->desc.sockfd - lws_plat_socket_offset()]=B
|
|
#define delete_from_fd(A,B) A->lws_lookup[B - lws_plat_socket_offset()]=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 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, int fixed_tsi);
|
|
|
|
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 void
|
|
lws_client_stash_destroy(struct lws *wsi);
|
|
|
|
/*
|
|
* EXTENSIONS
|
|
*/
|
|
|
|
#if defined(LWS_WITHOUT_EXTENSIONS)
|
|
#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_ws_rx_sm(struct lws *wsi, char already_processed, unsigned char c);
|
|
|
|
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_role_transition(struct lws *wsi, enum lwsi_role role, enum lwsi_state state,
|
|
struct lws_role_ops *ops);
|
|
|
|
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);
|
|
|
|
LWS_EXTERN int
|
|
lws_plat_socket_offset(void);
|
|
|
|
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 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 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_vhost_init_server(const 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 LWS_WARN_UNUSED_RESULT
|
|
lws_parse_ws(struct lws *wsi, unsigned char **buf, size_t len);
|
|
LWS_EXTERN void
|
|
lws_server_get_canonical_hostname(struct lws_context *context,
|
|
const struct lws_context_creation_info *info);
|
|
#else
|
|
#define _lws_vhost_init_server(_a, _b) (0)
|
|
#define lws_parse_ws(_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
|
|
|
|
LWS_EXTERN int LWS_WARN_UNUSED_RESULT
|
|
interface_to_sa(struct lws_vhost *vh, const char *ifname,
|
|
struct sockaddr_in *addr, size_t addrlen);
|
|
LWS_EXTERN void lwsl_emit_stderr(int level, const char *line);
|
|
|
|
#if !defined(LWS_WITH_TLS)
|
|
#define LWS_SSL_ENABLED(context) (0)
|
|
#define lws_context_init_server_ssl(_a, _b) (0)
|
|
#define lws_ssl_destroy(_a)
|
|
#define lws_context_init_alpn(_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_ssl_remove_wsi_from_buffered_list(_a)
|
|
#define lws_context_init_ssl_library(_a)
|
|
#define lws_tls_check_all_cert_lifetimes(_a)
|
|
#define lws_tls_acme_sni_cert_destroy(_a)
|
|
#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);
|
|
pthread_mutex_init(&pt->lock_stats, NULL);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_pt_mutex_destroy(struct lws_context_per_thread *pt)
|
|
{
|
|
pthread_mutex_destroy(&pt->lock_stats);
|
|
pthread_mutex_destroy(&pt->lock);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_pt_lock(struct lws_context_per_thread *pt, const char *reason)
|
|
{
|
|
if (pt->lock_owner == pthread_self()) {
|
|
pt->lock_depth++;
|
|
return;
|
|
}
|
|
pthread_mutex_lock(&pt->lock);
|
|
pt->last_lock_reason = reason;
|
|
pt->lock_owner = pthread_self();
|
|
//lwsl_notice("tid %d: lock %s\n", pt->tid, reason);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_pt_unlock(struct lws_context_per_thread *pt)
|
|
{
|
|
if (pt->lock_depth) {
|
|
pt->lock_depth--;
|
|
return;
|
|
}
|
|
pt->last_lock_reason = "free";
|
|
pt->lock_owner = 0;
|
|
//lwsl_notice("tid %d: unlock %s\n", pt->tid, pt->last_lock_reason);
|
|
pthread_mutex_unlock(&pt->lock);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_pt_stats_lock(struct lws_context_per_thread *pt)
|
|
{
|
|
pthread_mutex_lock(&pt->lock_stats);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_pt_stats_unlock(struct lws_context_per_thread *pt)
|
|
{
|
|
pthread_mutex_unlock(&pt->lock_stats);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_context_lock(struct lws_context *context)
|
|
{
|
|
pthread_mutex_lock(&context->lock);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_context_unlock(struct lws_context *context)
|
|
{
|
|
pthread_mutex_unlock(&context->lock);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_vhost_lock(struct lws_vhost *vhost)
|
|
{
|
|
pthread_mutex_lock(&vhost->lock);
|
|
}
|
|
|
|
static LWS_INLINE void
|
|
lws_vhost_unlock(struct lws_vhost *vhost)
|
|
{
|
|
pthread_mutex_unlock(&vhost->lock);
|
|
}
|
|
|
|
|
|
#else
|
|
#define lws_pt_mutex_init(_a) (void)(_a)
|
|
#define lws_pt_mutex_destroy(_a) (void)(_a)
|
|
#define lws_pt_lock(_a, b) (void)(_a)
|
|
#define lws_pt_unlock(_a) (void)(_a)
|
|
#define lws_context_lock(_a) (void)(_a)
|
|
#define lws_context_unlock(_a) (void)(_a)
|
|
#define lws_vhost_lock(_a) (void)(_a)
|
|
#define lws_vhost_unlock(_a) (void)(_a)
|
|
#define lws_pt_stats_lock(_a) (void)(_a)
|
|
#define lws_pt_stats_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);
|
|
|
|
int
|
|
lws_tls_check_cert_lifetime(struct lws_vhost *vhost);
|
|
|
|
int lws_jws_selftest(void);
|
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#ifndef LWS_NO_CLIENT
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LWS_EXTERN int lws_client_socket_service(struct lws *wsi,
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struct lws_pollfd *pollfd,
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struct lws *wsi_conn);
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LWS_EXTERN struct lws *
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lws_client_wsi_effective(struct lws *wsi);
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_http_transaction_completed_client(struct lws *wsi);
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#if !defined(LWS_WITH_TLS)
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#define lws_context_init_client_ssl(_a, _b) (0)
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#endif
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LWS_EXTERN void
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lws_decode_ssl_error(void);
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#else
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#define lws_context_init_client_ssl(_a, _b) (0)
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#endif
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LWS_EXTERN int
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__lws_rx_flow_control(struct lws *wsi);
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LWS_EXTERN int
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_lws_change_pollfd(struct lws *wsi, int _and, int _or, struct lws_pollargs *pa);
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#ifndef LWS_NO_SERVER
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LWS_EXTERN int
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lws_handshake_server(struct lws *wsi, unsigned char **buf, size_t len);
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#else
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#define lws_server_socket_service(_b, _c) (0)
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#define lws_handshake_server(_a, _b, _c) (0)
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#endif
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#ifdef LWS_WITH_ACCESS_LOG
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LWS_EXTERN int
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lws_access_log(struct lws *wsi);
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LWS_EXTERN void
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lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int meth);
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#else
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#define lws_access_log(_a)
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#endif
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LWS_EXTERN int
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lws_cgi_kill_terminated(struct lws_context_per_thread *pt);
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LWS_EXTERN void
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lws_cgi_remove_and_kill(struct lws *wsi);
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int
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lws_protocol_init(struct lws_context *context);
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int
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lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p);
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const struct lws_http_mount *
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lws_find_mount(struct lws *wsi, const char *uri_ptr, int uri_len);
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/*
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* custom allocator
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*/
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LWS_EXTERN void *
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lws_realloc(void *ptr, size_t size, const char *reason);
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LWS_EXTERN void * LWS_WARN_UNUSED_RESULT
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lws_zalloc(size_t size, const char *reason);
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#ifdef LWS_PLAT_OPTEE
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void *lws_malloc(size_t size, const char *reason);
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void lws_free(void *p);
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#define lws_free_set_NULL(P) do { lws_free(P); (P) = NULL; } while(0)
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#else
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#define lws_malloc(S, R) lws_realloc(NULL, S, R)
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#define lws_free(P) lws_realloc(P, 0, "lws_free")
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#define lws_free_set_NULL(P) do { lws_realloc(P, 0, "free"); (P) = NULL; } while(0)
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#endif
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char *
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lws_strdup(const char *s);
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int
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lws_plat_pipe_create(struct lws *wsi);
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int
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lws_plat_pipe_signal(struct lws *wsi);
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void
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lws_plat_pipe_close(struct lws *wsi);
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int
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lws_create_event_pipes(struct lws_context *context);
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int lws_open(const char *__file, int __oflag, ...);
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void lws_plat_apply_FD_CLOEXEC(int n);
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const struct lws_plat_file_ops *
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lws_vfs_select_fops(const struct lws_plat_file_ops *fops, const char *vfs_path,
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const char **vpath);
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/* lws_plat_ */
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LWS_EXTERN void
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lws_plat_delete_socket_from_fds(struct lws_context *context,
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struct lws *wsi, int m);
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LWS_EXTERN void
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lws_plat_insert_socket_into_fds(struct lws_context *context,
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struct lws *wsi);
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LWS_EXTERN void
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lws_plat_service_periodic(struct lws_context *context);
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LWS_EXTERN int
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lws_plat_change_pollfd(struct lws_context *context, struct lws *wsi,
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struct lws_pollfd *pfd);
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LWS_EXTERN void
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lws_add_wsi_to_draining_ext_list(struct lws *wsi);
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LWS_EXTERN void
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lws_remove_wsi_from_draining_ext_list(struct lws *wsi);
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LWS_EXTERN int
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lws_plat_context_early_init(void);
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LWS_EXTERN void
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lws_plat_context_early_destroy(struct lws_context *context);
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LWS_EXTERN void
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lws_plat_context_late_destroy(struct lws_context *context);
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LWS_EXTERN int
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lws_poll_listen_fd(struct lws_pollfd *fd);
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LWS_EXTERN int
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lws_plat_service(struct lws_context *context, int timeout_ms);
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LWS_EXTERN LWS_VISIBLE int
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_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi);
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LWS_EXTERN int
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lws_plat_init(struct lws_context *context,
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const struct lws_context_creation_info *info);
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LWS_EXTERN void
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lws_plat_drop_app_privileges(const struct lws_context_creation_info *info);
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LWS_EXTERN unsigned long long
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time_in_microseconds(void);
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LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
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lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt);
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_plat_inet_pton(int af, const char *src, void *dst);
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LWS_EXTERN int LWS_WARN_UNUSED_RESULT
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lws_check_utf8(unsigned char *state, unsigned char *buf, size_t len);
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LWS_EXTERN int alloc_file(struct lws_context *context, const char *filename, uint8_t **buf,
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lws_filepos_t *amount);
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LWS_EXTERN void
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lws_same_vh_protocol_remove(struct lws *wsi);
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LWS_EXTERN void
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lws_same_vh_protocol_insert(struct lws *wsi, int n);
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LWS_EXTERN int
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lws_broadcast(struct lws_context *context, int reason, void *in, size_t len);
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#if defined(LWS_WITH_STATS)
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void
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lws_stats_atomic_bump(struct lws_context * context,
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struct lws_context_per_thread *pt, int index, uint64_t bump);
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void
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lws_stats_atomic_max(struct lws_context * context,
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struct lws_context_per_thread *pt, int index, uint64_t val);
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#else
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static LWS_INLINE uint64_t lws_stats_atomic_bump(struct lws_context * context,
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struct lws_context_per_thread *pt, int index, uint64_t bump) {
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(void)context; (void)pt; (void)index; (void)bump; return 0; }
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static LWS_INLINE uint64_t lws_stats_atomic_max(struct lws_context * context,
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struct lws_context_per_thread *pt, int index, uint64_t val) {
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(void)context; (void)pt; (void)index; (void)val; return 0; }
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#endif
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/* socks */
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void socks_generate_msg(struct lws *wsi, enum socks_msg_type type,
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ssize_t *msg_len);
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#if defined(LWS_WITH_PEER_LIMITS)
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void
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lws_peer_track_wsi_close(struct lws_context *context, struct lws_peer *peer);
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int
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lws_peer_confirm_ah_attach_ok(struct lws_context *context, struct lws_peer *peer);
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void
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lws_peer_track_ah_detach(struct lws_context *context, struct lws_peer *peer);
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void
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lws_peer_cull_peer_wait_list(struct lws_context *context);
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struct lws_peer *
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lws_get_or_create_peer(struct lws_vhost *vhost, lws_sockfd_type sockfd);
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void
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lws_peer_add_wsi(struct lws_context *context, struct lws_peer *peer,
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struct lws *wsi);
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void
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lws_peer_dump_from_wsi(struct lws *wsi);
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#endif
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#ifdef LWS_WITH_HTTP_PROXY
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hubbub_error
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html_parser_cb(const hubbub_token *token, void *pw);
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#endif
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void
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__lws_remove_from_timeout_list(struct lws *wsi);
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lws_usec_t
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__lws_hrtimer_service(struct lws_context_per_thread *pt);
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void
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__lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs);
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int
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__lws_change_pollfd(struct lws *wsi, int _and, int _or);
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int
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lws_callback_as_writeable(struct lws *wsi);
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int
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lws_buflist_aware_read(struct lws_context_per_thread *pt, struct lws *wsi,
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struct lws_tokens *ebuf);
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int
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lws_buflist_aware_consume(struct lws *wsi, struct lws_tokens *ebuf, int used,
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int buffered);
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char *
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lws_generate_client_ws_handshake(struct lws *wsi, char *p);
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int
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lws_client_ws_upgrade(struct lws *wsi, const char **cce);
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int
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lws_create_client_ws_object(struct lws_client_connect_info *i, struct lws *wsi);
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int
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lws_alpn_comma_to_openssl(const char *comma, uint8_t *os, int len);
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int
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lws_role_call_alpn_negotiated(struct lws *wsi, const char *alpn);
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int
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lws_tls_server_conn_alpn(struct lws *wsi);
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int
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lws_ws_client_rx_sm_block(struct lws *wsi, unsigned char **buf, size_t len);
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void
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lws_destroy_event_pipe(struct lws *wsi);
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void
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lws_context_destroy2(struct lws_context *context);
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#ifdef __cplusplus
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};
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#endif
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