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Diffstat (limited to 'thirdparty/libwebsockets/core/private.h')
| -rw-r--r-- | thirdparty/libwebsockets/core/private.h | 1770 |
1 files changed, 1770 insertions, 0 deletions
diff --git a/thirdparty/libwebsockets/core/private.h b/thirdparty/libwebsockets/core/private.h new file mode 100644 index 0000000000..73748b0498 --- /dev/null +++ b/thirdparty/libwebsockets/core/private.h @@ -0,0 +1,1770 @@ +/* + * libwebsockets - small server side websockets and web server implementation + * + * Copyright (C) 2010 - 2018 Andy Green <andy@warmcat.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation: + * version 2.1 of the License. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include "lws_config.h" +#include "lws_config_private.h" + +#if defined(LWS_WITH_CGI) && defined(LWS_HAVE_VFORK) + #define _GNU_SOURCE +#endif + +#if defined(__COVERITY__) && !defined(LWS_COVERITY_WORKAROUND) + #define LWS_COVERITY_WORKAROUND + typedef float _Float32; + typedef float _Float64; + typedef float _Float128; + typedef float _Float32x; + typedef float _Float64x; + typedef float _Float128x; +#endif + +#ifdef LWS_HAVE_SYS_TYPES_H + #include <sys/types.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <ctype.h> +#include <limits.h> +#include <stdarg.h> +#include <inttypes.h> + +#if defined(LWS_WITH_ESP32) + #define MSG_NOSIGNAL 0 + #define SOMAXCONN 3 +#endif + +#define STORE_IN_ROM +#include <assert.h> +#if LWS_MAX_SMP > 1 + #include <pthread.h> +#endif + +#ifdef LWS_HAVE_SYS_STAT_H + #include <sys/stat.h> +#endif + +#if defined(WIN32) || defined(_WIN32) + + #ifndef WIN32_LEAN_AND_MEAN + #define WIN32_LEAN_AND_MEAN + #endif + + #if (WINVER < 0x0501) + #undef WINVER + #undef _WIN32_WINNT + #define WINVER 0x0501 + #define _WIN32_WINNT WINVER + #endif + + #define LWS_NO_DAEMONIZE + #define LWS_ERRNO WSAGetLastError() + #define LWS_EAGAIN WSAEWOULDBLOCK + #define LWS_EALREADY WSAEALREADY + #define LWS_EINPROGRESS WSAEINPROGRESS + #define LWS_EINTR WSAEINTR + #define LWS_EISCONN WSAEISCONN + #define LWS_EWOULDBLOCK WSAEWOULDBLOCK + #define MSG_NOSIGNAL 0 + #define SHUT_RDWR SD_BOTH + #define SOL_TCP IPPROTO_TCP + #define SHUT_WR SD_SEND + + #define compatible_close(fd) closesocket(fd) + #define lws_set_blocking_send(wsi) wsi->sock_send_blocking = 1 + #define LWS_SOCK_INVALID (INVALID_SOCKET) + + #include <winsock2.h> + #include <ws2tcpip.h> + #include <windows.h> + #include <tchar.h> + #ifdef LWS_HAVE_IN6ADDR_H + #include <in6addr.h> + #endif + #include <mstcpip.h> + #include <io.h> + + #if !defined(LWS_HAVE_ATOLL) + #if defined(LWS_HAVE__ATOI64) + #define atoll _atoi64 + #else + #warning No atoll or _atoi64 available, using atoi + #define atoll atoi + #endif + #endif + + #ifndef __func__ + #define __func__ __FUNCTION__ + #endif + + #ifdef LWS_HAVE__VSNPRINTF + #define vsnprintf _vsnprintf + #endif + + /* we don't have an implementation for this on windows... */ + int kill(int pid, int sig); + int fork(void); + #ifndef SIGINT + #define SIGINT 2 + #endif + +#else /* not windows --> */ + + #include <fcntl.h> + #include <strings.h> + #include <unistd.h> + #include <sys/types.h> + + #ifndef __cplusplus + #include <errno.h> + #endif + #include <netdb.h> + #include <signal.h> + #include <sys/socket.h> + + #if defined(LWS_BUILTIN_GETIFADDRS) + #include "./misc/getifaddrs.h" + #else + #if !defined(LWS_WITH_ESP32) + #if defined(__HAIKU__) + #define _BSD_SOURCE + #endif + #include <ifaddrs.h> + #endif + #endif + #if defined (__ANDROID__) + #include <syslog.h> + #include <sys/resource.h> + #elif defined (__sun) || defined(__HAIKU__) || defined(__QNX__) + #include <syslog.h> + #else + #if !defined(LWS_WITH_ESP32) + #include <sys/syslog.h> + #endif + #endif + #include <netdb.h> + #if !defined(LWS_WITH_ESP32) + #include <sys/mman.h> + #include <sys/un.h> + #include <netinet/in.h> + #include <netinet/tcp.h> + #include <arpa/inet.h> + #include <poll.h> + #endif + #ifndef LWS_NO_FORK + #ifdef LWS_HAVE_SYS_PRCTL_H + #include <sys/prctl.h> + #endif + #endif + + #include <sys/time.h> + + #define LWS_ERRNO errno + #define LWS_EAGAIN EAGAIN + #define LWS_EALREADY EALREADY + #define LWS_EINPROGRESS EINPROGRESS + #define LWS_EINTR EINTR + #define LWS_EISCONN EISCONN + #define LWS_EWOULDBLOCK EWOULDBLOCK + + #define lws_set_blocking_send(wsi) + + #define LWS_SOCK_INVALID (-1) +#endif /* not windows */ + +#ifndef LWS_HAVE_BZERO + #ifndef bzero + #define bzero(b, len) (memset((b), '\0', (len)), (void) 0) + #endif +#endif + +#ifndef LWS_HAVE_STRERROR + #define strerror(x) "" +#endif + + +#define lws_socket_is_valid(x) (x != LWS_SOCK_INVALID) + +#include "libwebsockets.h" + +#include "tls/private.h" + +#if defined(WIN32) || defined(_WIN32) + #include <gettimeofday.h> + + #ifndef BIG_ENDIAN + #define BIG_ENDIAN 4321 /* to show byte order (taken from gcc) */ + #endif + #ifndef LITTLE_ENDIAN + #define LITTLE_ENDIAN 1234 + #endif + #ifndef BYTE_ORDER + #define BYTE_ORDER LITTLE_ENDIAN + #endif + + #undef __P + #ifndef __P + #if __STDC__ + #define __P(protos) protos + #else + #define __P(protos) () + #endif + #endif + +#else /* not windows */ + static LWS_INLINE int compatible_close(int fd) { return close(fd); } + + #include <sys/stat.h> + #include <sys/time.h> + + #if defined(__APPLE__) + #include <machine/endian.h> + #elif defined(__FreeBSD__) + #include <sys/endian.h> + #elif defined(__linux__) + #include <endian.h> + #endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(__QNX__) + #include <gulliver.h> + #if defined(__LITTLEENDIAN__) + #define BYTE_ORDER __LITTLEENDIAN__ + #define LITTLE_ENDIAN __LITTLEENDIAN__ + #define BIG_ENDIAN 4321 /* to show byte order (taken from gcc); for suppres warning that BIG_ENDIAN is not defined. */ + #endif + #if defined(__BIGENDIAN__) + #define BYTE_ORDER __BIGENDIAN__ + #define LITTLE_ENDIAN 1234 /* to show byte order (taken from gcc); for suppres warning that LITTLE_ENDIAN is not defined. */ + #define BIG_ENDIAN __BIGENDIAN__ + #endif +#endif + +#if defined(__sun) && defined(__GNUC__) + + #include <arpa/nameser_compat.h> + + #if !defined (BYTE_ORDER) + #define BYTE_ORDER __BYTE_ORDER__ + #endif + + #if !defined(LITTLE_ENDIAN) + #define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__ + #endif + + #if !defined(BIG_ENDIAN) + #define BIG_ENDIAN __ORDER_BIG_ENDIAN__ + #endif + +#endif /* sun + GNUC */ + +#if !defined(BYTE_ORDER) + #define BYTE_ORDER __BYTE_ORDER +#endif +#if !defined(LITTLE_ENDIAN) + #define LITTLE_ENDIAN __LITTLE_ENDIAN +#endif +#if !defined(BIG_ENDIAN) + #define BIG_ENDIAN __BIG_ENDIAN +#endif + + +/* + * Mac OSX as well as iOS do not define the MSG_NOSIGNAL flag, + * but happily have something equivalent in the SO_NOSIGPIPE flag. + */ +#ifdef __APPLE__ +#define MSG_NOSIGNAL SO_NOSIGPIPE +#endif + +/* + * Solaris 11.X only supports POSIX 2001, MSG_NOSIGNAL appears in + * POSIX 2008. + */ +#ifdef __sun + #define MSG_NOSIGNAL 0 +#endif + +#ifdef _WIN32 + #ifndef FD_HASHTABLE_MODULUS + #define FD_HASHTABLE_MODULUS 32 + #endif +#endif + +#ifndef LWS_DEF_HEADER_LEN +#define LWS_DEF_HEADER_LEN 4096 +#endif +#ifndef LWS_DEF_HEADER_POOL +#define LWS_DEF_HEADER_POOL 4 +#endif +#ifndef LWS_MAX_PROTOCOLS +#define LWS_MAX_PROTOCOLS 5 +#endif +#ifndef LWS_MAX_EXTENSIONS_ACTIVE +#define LWS_MAX_EXTENSIONS_ACTIVE 1 +#endif +#ifndef LWS_MAX_EXT_OFFERS +#define LWS_MAX_EXT_OFFERS 8 +#endif +#ifndef SPEC_LATEST_SUPPORTED +#define SPEC_LATEST_SUPPORTED 13 +#endif +#ifndef AWAITING_TIMEOUT +#define AWAITING_TIMEOUT 20 +#endif +#ifndef CIPHERS_LIST_STRING +#define CIPHERS_LIST_STRING "DEFAULT" +#endif +#ifndef LWS_SOMAXCONN +#define LWS_SOMAXCONN SOMAXCONN +#endif + +#define MAX_WEBSOCKET_04_KEY_LEN 128 + +#ifndef SYSTEM_RANDOM_FILEPATH +#define SYSTEM_RANDOM_FILEPATH "/dev/urandom" +#endif + +#define LWS_H2_RX_SCRATCH_SIZE 512 + +#if defined(WIN32) || defined(_WIN32) + // Visual studio older than 2015 and WIN_CE has only _stricmp + #if (defined(_MSC_VER) && _MSC_VER < 1900) || defined(_WIN32_WCE) + #define strcasecmp _stricmp + #elif !defined(__MINGW32__) + #define strcasecmp stricmp + #endif + #define getdtablesize() 30000 +#endif + +/* + * All lws_tls...() functions must return this type, converting the + * native backend result and doing the extra work to determine which one + * as needed. + * + * Native TLS backend return codes are NOT ALLOWED outside the backend. + * + * Non-SSL mode also uses these types. + */ +enum lws_ssl_capable_status { + LWS_SSL_CAPABLE_ERROR = -1, /* it failed */ + LWS_SSL_CAPABLE_DONE = 0, /* it succeeded */ + LWS_SSL_CAPABLE_MORE_SERVICE_READ = -2, /* retry WANT_READ */ + LWS_SSL_CAPABLE_MORE_SERVICE_WRITE = -3, /* retry WANT_WRITE */ + LWS_SSL_CAPABLE_MORE_SERVICE = -4, /* general retry */ +}; + +#if defined(__clang__) +#define lws_memory_barrier() __sync_synchronize() +#elif defined(__GNUC__) +#define lws_memory_barrier() __sync_synchronize() +#else +#define lws_memory_barrier() +#endif + +/* + * + * ------ roles ------ + * + */ + +#include "roles/private.h" + +/* null-terminated array of pointers to roles lws built with */ +extern const struct lws_role_ops *available_roles[]; + +#define LWS_FOR_EVERY_AVAILABLE_ROLE_START(xx) { \ + const struct lws_role_ops **ppxx = available_roles; \ + while (*ppxx) { \ + const struct lws_role_ops *xx = *ppxx++; + +#define LWS_FOR_EVERY_AVAILABLE_ROLE_END }} + +/* + * + * ------ event_loop ops ------ + * + */ + +#include "event-libs/private.h" + +/* enums of socks version */ +enum socks_version { + SOCKS_VERSION_4 = 4, + SOCKS_VERSION_5 = 5 +}; + +/* enums of subnegotiation version */ +enum socks_subnegotiation_version { + SOCKS_SUBNEGOTIATION_VERSION_1 = 1, +}; + +/* enums of socks commands */ +enum socks_command { + SOCKS_COMMAND_CONNECT = 1, + SOCKS_COMMAND_BIND = 2, + SOCKS_COMMAND_UDP_ASSOCIATE = 3 +}; + +/* enums of socks address type */ +enum socks_atyp { + SOCKS_ATYP_IPV4 = 1, + SOCKS_ATYP_DOMAINNAME = 3, + SOCKS_ATYP_IPV6 = 4 +}; + +/* enums of socks authentication methods */ +enum socks_auth_method { + SOCKS_AUTH_NO_AUTH = 0, + SOCKS_AUTH_GSSAPI = 1, + SOCKS_AUTH_USERNAME_PASSWORD = 2 +}; + +/* enums of subnegotiation status */ +enum socks_subnegotiation_status { + SOCKS_SUBNEGOTIATION_STATUS_SUCCESS = 0, +}; + +/* enums of socks request reply */ +enum socks_request_reply { + SOCKS_REQUEST_REPLY_SUCCESS = 0, + SOCKS_REQUEST_REPLY_FAILURE_GENERAL = 1, + SOCKS_REQUEST_REPLY_CONNECTION_NOT_ALLOWED = 2, + SOCKS_REQUEST_REPLY_NETWORK_UNREACHABLE = 3, + SOCKS_REQUEST_REPLY_HOST_UNREACHABLE = 4, + SOCKS_REQUEST_REPLY_CONNECTION_REFUSED = 5, + SOCKS_REQUEST_REPLY_TTL_EXPIRED = 6, + SOCKS_REQUEST_REPLY_COMMAND_NOT_SUPPORTED = 7, + SOCKS_REQUEST_REPLY_ATYP_NOT_SUPPORTED = 8 +}; + +/* enums used to generate socks messages */ +enum socks_msg_type { + /* greeting */ + SOCKS_MSG_GREETING, + /* credential, user name and password */ + SOCKS_MSG_USERNAME_PASSWORD, + /* connect command */ + SOCKS_MSG_CONNECT +}; + +enum { + LWS_RXFLOW_ALLOW = (1 << 0), + LWS_RXFLOW_PENDING_CHANGE = (1 << 1), +}; + +struct lws_ring { + void *buf; + void (*destroy_element)(void *element); + uint32_t buflen; + uint32_t element_len; + uint32_t head; + uint32_t oldest_tail; +}; + +struct lws_protocols; +struct lws; + +struct lws_io_watcher { +#ifdef LWS_WITH_LIBEV + struct lws_io_watcher_libev ev; +#endif +#ifdef LWS_WITH_LIBUV + struct lws_io_watcher_libuv uv; +#endif +#ifdef LWS_WITH_LIBEVENT + struct lws_io_watcher_libevent event; +#endif + struct lws_context *context; + + uint8_t actual_events; +}; + +struct lws_signal_watcher { +#ifdef LWS_WITH_LIBEV + struct lws_signal_watcher_libev ev; +#endif +#ifdef LWS_WITH_LIBUV + struct lws_signal_watcher_libuv uv; +#endif +#ifdef LWS_WITH_LIBEVENT + struct lws_signal_watcher_libevent event; +#endif + struct lws_context *context; +}; + +#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 + +struct lws_foreign_thread_pollfd { + struct lws_foreign_thread_pollfd *next; + int fd_index; + int _and; + int _or; +}; + + +#define LWS_HRTIMER_NOWAIT (0x7fffffffffffffffll) + +/* + * 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; + 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); + + +#ifndef LWS_NO_CLIENT +LWS_EXTERN int lws_client_socket_service(struct lws *wsi, + struct lws_pollfd *pollfd, + struct lws *wsi_conn); +LWS_EXTERN struct lws * +lws_client_wsi_effective(struct lws *wsi); +LWS_EXTERN int LWS_WARN_UNUSED_RESULT +lws_http_transaction_completed_client(struct lws *wsi); +#if !defined(LWS_WITH_TLS) + #define lws_context_init_client_ssl(_a, _b) (0) +#endif +LWS_EXTERN void +lws_decode_ssl_error(void); +#else +#define lws_context_init_client_ssl(_a, _b) (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_handshake_server(struct lws *wsi, unsigned char **buf, size_t len); +#else +#define lws_server_socket_service(_b, _c) (0) +#define lws_handshake_server(_a, _b, _c) (0) +#endif + +#ifdef LWS_WITH_ACCESS_LOG +LWS_EXTERN int +lws_access_log(struct lws *wsi); +LWS_EXTERN void +lws_prepare_access_log_info(struct lws *wsi, char *uri_ptr, int meth); +#else +#define lws_access_log(_a) +#endif + +LWS_EXTERN int +lws_cgi_kill_terminated(struct lws_context_per_thread *pt); + +LWS_EXTERN void +lws_cgi_remove_and_kill(struct lws *wsi); + +int +lws_protocol_init(struct lws_context *context); + +int +lws_bind_protocol(struct lws *wsi, const struct lws_protocols *p); + +const struct lws_http_mount * +lws_find_mount(struct lws *wsi, const char *uri_ptr, int uri_len); + +/* + * custom allocator + */ +LWS_EXTERN void * +lws_realloc(void *ptr, size_t size, const char *reason); + +LWS_EXTERN void * LWS_WARN_UNUSED_RESULT +lws_zalloc(size_t size, const char *reason); + +#ifdef LWS_PLAT_OPTEE +void *lws_malloc(size_t size, const char *reason); +void lws_free(void *p); +#define lws_free_set_NULL(P) do { lws_free(P); (P) = NULL; } while(0) +#else +#define lws_malloc(S, R) lws_realloc(NULL, S, R) +#define lws_free(P) lws_realloc(P, 0, "lws_free") +#define lws_free_set_NULL(P) do { lws_realloc(P, 0, "free"); (P) = NULL; } while(0) +#endif + +char * +lws_strdup(const char *s); + +int +lws_plat_pipe_create(struct lws *wsi); +int +lws_plat_pipe_signal(struct lws *wsi); +void +lws_plat_pipe_close(struct lws *wsi); +int +lws_create_event_pipes(struct lws_context *context); + +int lws_open(const char *__file, int __oflag, ...); +void lws_plat_apply_FD_CLOEXEC(int n); + +const struct lws_plat_file_ops * +lws_vfs_select_fops(const struct lws_plat_file_ops *fops, const char *vfs_path, + const char **vpath); + +/* lws_plat_ */ +LWS_EXTERN void +lws_plat_delete_socket_from_fds(struct lws_context *context, + struct lws *wsi, int m); +LWS_EXTERN void +lws_plat_insert_socket_into_fds(struct lws_context *context, + struct lws *wsi); +LWS_EXTERN void +lws_plat_service_periodic(struct lws_context *context); + +LWS_EXTERN int +lws_plat_change_pollfd(struct lws_context *context, struct lws *wsi, + struct lws_pollfd *pfd); +LWS_EXTERN void +lws_add_wsi_to_draining_ext_list(struct lws *wsi); +LWS_EXTERN void +lws_remove_wsi_from_draining_ext_list(struct lws *wsi); +LWS_EXTERN int +lws_plat_context_early_init(void); +LWS_EXTERN void +lws_plat_context_early_destroy(struct lws_context *context); +LWS_EXTERN void +lws_plat_context_late_destroy(struct lws_context *context); +LWS_EXTERN int +lws_poll_listen_fd(struct lws_pollfd *fd); +LWS_EXTERN int +lws_plat_service(struct lws_context *context, int timeout_ms); +LWS_EXTERN LWS_VISIBLE int +_lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi); +LWS_EXTERN int +lws_plat_init(struct lws_context *context, + const struct lws_context_creation_info *info); +LWS_EXTERN void +lws_plat_drop_app_privileges(const struct lws_context_creation_info *info); +LWS_EXTERN unsigned long long +time_in_microseconds(void); +LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT +lws_plat_inet_ntop(int af, const void *src, char *dst, int cnt); +LWS_EXTERN int LWS_WARN_UNUSED_RESULT +lws_plat_inet_pton(int af, const char *src, void *dst); + +LWS_EXTERN int LWS_WARN_UNUSED_RESULT +lws_check_utf8(unsigned char *state, unsigned char *buf, size_t len); +LWS_EXTERN int alloc_file(struct lws_context *context, const char *filename, uint8_t **buf, + lws_filepos_t *amount); + + +LWS_EXTERN void +lws_same_vh_protocol_remove(struct lws *wsi); +LWS_EXTERN void +lws_same_vh_protocol_insert(struct lws *wsi, int n); + +LWS_EXTERN int +lws_broadcast(struct lws_context *context, int reason, void *in, size_t len); + +#if defined(LWS_WITH_STATS) + void + lws_stats_atomic_bump(struct lws_context * context, + struct lws_context_per_thread *pt, int index, uint64_t bump); + void + lws_stats_atomic_max(struct lws_context * context, + struct lws_context_per_thread *pt, int index, uint64_t val); +#else + static LWS_INLINE uint64_t lws_stats_atomic_bump(struct lws_context * context, + struct lws_context_per_thread *pt, int index, uint64_t bump) { + (void)context; (void)pt; (void)index; (void)bump; return 0; } + static LWS_INLINE uint64_t lws_stats_atomic_max(struct lws_context * context, + struct lws_context_per_thread *pt, int index, uint64_t val) { + (void)context; (void)pt; (void)index; (void)val; return 0; } +#endif + +/* socks */ +void socks_generate_msg(struct lws *wsi, enum socks_msg_type type, + ssize_t *msg_len); + +#if defined(LWS_WITH_PEER_LIMITS) +void +lws_peer_track_wsi_close(struct lws_context *context, struct lws_peer *peer); +int +lws_peer_confirm_ah_attach_ok(struct lws_context *context, struct lws_peer *peer); +void +lws_peer_track_ah_detach(struct lws_context *context, struct lws_peer *peer); +void +lws_peer_cull_peer_wait_list(struct lws_context *context); +struct lws_peer * +lws_get_or_create_peer(struct lws_vhost *vhost, lws_sockfd_type sockfd); +void +lws_peer_add_wsi(struct lws_context *context, struct lws_peer *peer, + struct lws *wsi); +void +lws_peer_dump_from_wsi(struct lws *wsi); +#endif + +#ifdef LWS_WITH_HTTP_PROXY +hubbub_error +html_parser_cb(const hubbub_token *token, void *pw); +#endif + + +void +__lws_remove_from_timeout_list(struct lws *wsi); + +lws_usec_t +__lws_hrtimer_service(struct lws_context_per_thread *pt); + +void +__lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs); +int +__lws_change_pollfd(struct lws *wsi, int _and, int _or); + + +int +lws_callback_as_writeable(struct lws *wsi); +int +lws_buflist_aware_read(struct lws_context_per_thread *pt, struct lws *wsi, + struct lws_tokens *ebuf); +int +lws_buflist_aware_consume(struct lws *wsi, struct lws_tokens *ebuf, int used, + int buffered); + + +char * +lws_generate_client_ws_handshake(struct lws *wsi, char *p); +int +lws_client_ws_upgrade(struct lws *wsi, const char **cce); +int +lws_create_client_ws_object(struct lws_client_connect_info *i, struct lws *wsi); +int +lws_alpn_comma_to_openssl(const char *comma, uint8_t *os, int len); +int +lws_role_call_alpn_negotiated(struct lws *wsi, const char *alpn); +int +lws_tls_server_conn_alpn(struct lws *wsi); + +int +lws_ws_client_rx_sm_block(struct lws *wsi, unsigned char **buf, size_t len); +void +lws_destroy_event_pipe(struct lws *wsi); +void +lws_context_destroy2(struct lws_context *context); + +#ifdef __cplusplus +}; +#endif |