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libwebsockets/lib/core-net/private.h
Andy Green 0516966d7d http_proxy: fixes
2019-11-15 08:44:22 +00:00

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/*
* libwebsockets - small server side websockets and web server implementation
*
* Copyright (C) 2010 - 2019 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
*/
#if !defined(__LWS_CORE_NET_PRIVATE_H__)
#define __LWS_CORE_NET_PRIVATE_H__
#if !defined(_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE 200112L
#endif
#include "roles/private.h"
#ifdef LWS_WITH_IPV6
#if defined(WIN32) || defined(_WIN32)
#include <iphlpapi.h>
#else
#include <net/if.h>
#endif
#endif
#ifdef __cplusplus
extern "C" {
#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 */
};
/*
*
* ------ roles ------
*
*/
/* 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 ------
*
*/
/* 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),
};
enum lws_parser_return {
LPR_OK = 0,
LPR_FAIL = -1,
LPR_DO_FALLBACK = 2,
LPR_FORBIDDEN = -2
};
enum pmd_return {
PMDR_UNKNOWN,
PMDR_DID_NOTHING,
PMDR_HAS_PENDING,
PMDR_EMPTY_NONFINAL,
PMDR_EMPTY_FINAL,
PMDR_FAILED = -1
};
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
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 = (1u << 31),
};
#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;
void *opaque_user_data; /* not allocated or freed by lws */
};
#endif
#define lws_wsi_is_udp(___wsi) (!!___wsi->udp)
#define LWS_H2_FRAME_HEADER_LENGTH 9
int
__lws_sul_insert(lws_dll2_owner_t *own, lws_sorted_usec_list_t *sul,
lws_usec_t us);
lws_usec_t
__lws_sul_service_ripe(lws_dll2_owner_t *own, lws_usec_t usnow);
struct lws_timed_vh_protocol {
struct lws_timed_vh_protocol *next;
lws_sorted_usec_list_t sul;
const struct lws_protocols *protocol;
struct lws_vhost *vhost; /* only used for pending processing */
int reason;
int tsi_req;
};
/*
* lws_dsh
*/
typedef struct lws_dsh_obj_head {
lws_dll2_owner_t owner;
int kind;
} lws_dsh_obj_head_t;
typedef struct lws_dsh_obj {
lws_dll2_t list; /* must be first */
lws_dsh_t *dsh; /* invalid when on free list */
size_t size; /* invalid when on free list */
size_t asize;
} lws_dsh_obj_t;
struct lws_dsh {
lws_dll2_t list;
uint8_t *buf;
lws_dsh_obj_head_t *oha; /* array of object heads/kind */
size_t buffer_size;
size_t locally_in_use;
size_t locally_free;
int count_kinds;
uint8_t being_destroyed;
/*
* Overallocations at create:
*
* - the buffer itself
* - the object heads array
*/
};
/*
* 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_stats;
struct lws_mutex_refcount mr;
pthread_t self;
#endif
struct lws_dll2_owner dll_buflist_owner; /* guys with pending rxflow */
struct lws_dll2_owner seq_owner; /* list of lws_sequencer-s */
struct lws_dll2_owner pt_sul_owner;
#if defined (LWS_WITH_SEQUENCER)
lws_sorted_usec_list_t sul_seq_heartbeat;
#endif
#if defined(LWS_ROLE_H1) || defined(LWS_ROLE_H2)
lws_sorted_usec_list_t sul_ah_lifecheck;
#endif
#if defined(LWS_WITH_TLS) && !defined(LWS_NO_SERVER)
lws_sorted_usec_list_t sul_tls;
#endif
#if defined(LWS_PLAT_UNIX)
lws_sorted_usec_list_t sul_plat;
#endif
#if defined(LWS_WITH_STATS)
uint64_t lws_stats[LWSSTATS_SIZE];
int updated;
lws_sorted_usec_list_t sul_stats;
#endif
#if defined(LWS_WITH_PEER_LIMITS)
lws_sorted_usec_list_t sul_peer_limits;
#endif
#if defined(LWS_WITH_TLS)
struct lws_pt_tls tls;
#endif
struct lws *fake_wsi; /* used for callbacks where there's no wsi */
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_pollfd *fds;
volatile struct lws_foreign_thread_pollfd * volatile foreign_pfd_list;
#ifdef _WIN32
WSAEVENT events;
CRITICAL_SECTION interrupt_lock;
#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
#if defined(LWS_ROLE_DBUS)
struct lws_pt_role_dbus dbus;
#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;
/*
* 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;
volatile unsigned char inside_poll;
volatile unsigned char foreign_spinlock;
unsigned char tid;
unsigned char inside_service:1;
unsigned char event_loop_foreign:1;
unsigned char event_loop_destroy_processing_done:1;
#ifdef _WIN32
unsigned char interrupt_requested:1;
#endif
};
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;
};
/*
* 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;
char close_flow_vs_tsi[LWS_MAX_SMP];
#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;
const char *listen_accept_role;
const char *listen_accept_protocol;
const char *unix_socket_perms;
void (*finalize)(struct lws_vhost *vh, void *arg);
void *finalize_arg;
#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_dll2_owner *same_vh_protocol_owner;
struct lws_vhost *no_listener_vhost_list;
struct lws_dll2_owner abstract_instances_owner;
#if !defined(LWS_NO_CLIENT)
struct lws_dll2_owner dll_cli_active_conns_owner;
#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;
int count_bound_wsi;
#ifdef LWS_WITH_ACCESS_LOG
int log_fd;
#endif
unsigned int allocated_vhost_protocols:1;
unsigned int created_vhost_protocols:1;
unsigned int being_destroyed:1;
unsigned char default_protocol_index;
unsigned char raw_protocol_index;
};
void
__lws_vhost_destroy2(struct lws_vhost *vh);
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 */
lws_sorted_usec_list_t sul_ping;
#endif
#if defined(LWS_ROLE_DBUS)
struct _lws_dbus_mode_related dbus;
#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
lws_sorted_usec_list_t sul_timeout;
lws_sorted_usec_list_t sul_hrtimer;
/* 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_dll2 same_vh_protocol;
lws_seq_t *seq; /* associated sequencer if any */
struct lws_dll2 dll_buflist; /* guys with pending rxflow */
#if defined(LWS_WITH_THREADPOOL)
struct lws_threadpool_task *tp_task;
#endif
#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 *cli_hostname_copy;
struct lws_dll2 dll_cli_active_conns;
struct lws_dll2_owner dll2_cli_txn_queue_owner;
struct lws_dll2 dll2_cli_txn_queue;
#endif
void *user_space;
void *opaque_parent_data;
void *opaque_user_data;
struct lws_buflist *buflist; /* input-side buflist */
struct lws_buflist *buflist_out; /* output-side buflist */
#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
#ifdef LWS_LATENCY
unsigned long action_start;
unsigned long latency_start;
#endif
/* ints */
#define LWS_NO_FDS_POS (-1)
int position_in_fds_table;
#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 h2_stream_carries_sse: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_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 handling_404:1;
unsigned int protocol_bind_balance:1;
unsigned int unix_skt:1;
unsigned int close_when_buffered_out_drained:1;
unsigned int h1_ws_proxied;
unsigned int proxied_ws_parent;
unsigned int could_have_pending:1; /* detect back-to-back writes */
unsigned int outer_will_close:1;
unsigned int shadow:1; /* we do not control fd lifecycle at all */
#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 ocport, c_port;
#endif
/* 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;
uint8_t bound_vhost_index;
#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 immortal_substream_count;
/* volatile to make sure code is aware other thread can change */
volatile char handling_pollout;
volatile char leave_pollout_active;
#if LWS_MAX_SMP > 1
volatile char undergoing_init_from_other_pt;
#endif
};
#define lws_is_flowcontrolled(w) (!!(wsi->rxflow_bitmap))
void
lws_service_do_ripe_rxflow(struct lws_context_per_thread *pt);
const struct lws_role_ops *
lws_role_by_name(const char *name);
LWS_EXTERN int
lws_socket_bind(struct lws_vhost *vhost, lws_sockfd_type sockfd, int port,
const char *iface, int ipv6_allowed);
#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);
#if LWS_MAX_SMP > 1
static LWS_INLINE void
lws_pt_mutex_init(struct lws_context_per_thread *pt)
{
lws_mutex_refcount_init(&pt->mr);
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);
lws_mutex_refcount_destroy(&pt->mr);
}
#define lws_pt_lock(pt, reason) lws_mutex_refcount_lock(&pt->mr, reason)
#define lws_pt_unlock(pt) lws_mutex_refcount_unlock(&pt->mr)
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);
}
#endif
/*
* 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,
const struct lws_role_ops *ops);
int
lws_http_to_fallback(struct lws *wsi, unsigned char *buf, size_t len);
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_set_nonblocking(int fd);
LWS_EXTERN int
lws_plat_set_socket_options(struct lws_vhost *vhost, lws_sockfd_type fd,
int unix_skt);
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_WARN_UNUSED_RESULT
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
LWS_EXTERN int
__remove_wsi_socket_from_fds(struct lws *wsi);
enum {
LWSRXFC_ERROR = -1,
LWSRXFC_CACHED = 0,
LWSRXFC_ADDITIONAL = 1,
LWSRXFC_TRIMMED = 2,
};
int
_lws_plat_service_forced_tsi(struct lws_context *context, int tsi);
LWS_EXTERN int
lws_rxflow_cache(struct lws *wsi, unsigned char *buf, int n, int len);
LWS_EXTERN int
lws_service_flag_pending(struct lws_context *context, int tsi);
LWS_EXTERN void
lws_client_stash_destroy(struct lws *wsi);
static LWS_INLINE int
lws_has_buffered_out(struct lws *wsi) { return !!wsi->buflist_out; }
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 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);
void
lws_vhost_bind_wsi(struct lws_vhost *vh, struct lws *wsi);
void
lws_vhost_unbind_wsi(struct lws *wsi);
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_role_call_client_bind(struct lws *wsi,
const struct lws_client_connect_info *i);
void
lws_remove_child_from_any_parent(struct lws *wsi);
char *
lws_generate_client_ws_handshake(struct lws *wsi, char *p, const char *conn1);
int
lws_client_ws_upgrade(struct lws *wsi, const char **cce);
int
lws_create_client_ws_object(const 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);
/* socks */
int
socks_generate_msg(struct lws *wsi, enum socks_msg_type type, ssize_t *msg_len);
void
lws_sum_stats(const struct lws_context *ctx, struct lws_conn_stats *cs);
LWS_EXTERN int
__lws_timed_callback_remove(struct lws_vhost *vh, struct lws_timed_vh_protocol *p);
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 lws_usec_t
__lws_seq_timeout_check(struct lws_context_per_thread *pt, lws_usec_t usnow);
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_http_client_connect_via_info2(struct lws *wsi);
#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 len, 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);
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 int
lws_plat_change_pollfd(struct lws_context *context, struct lws *wsi,
struct lws_pollfd *pfd);
int
lws_plat_pipe_create(struct lws *wsi);
int
lws_plat_pipe_signal(struct lws *wsi);
void
lws_plat_pipe_close(struct lws *wsi);
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_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_pthread_self_to_tsi(struct lws_context *context);
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 void
lws_same_vh_protocol_remove(struct lws *wsi);
LWS_EXTERN void
__lws_same_vh_protocol_remove(struct lws *wsi);
LWS_EXTERN void
lws_same_vh_protocol_insert(struct lws *wsi, int n);
void
lws_seq_destroy_all_on_pt(struct lws_context_per_thread *pt);
LWS_EXTERN int
lws_broadcast(struct lws_context_per_thread *pt, int reason, void *in, size_t len);
#if defined(LWS_WITH_STATS)
void
lws_stats_bump(struct lws_context_per_thread *pt, int i, uint64_t bump);
void
lws_stats_max(struct lws_context_per_thread *pt, int index, uint64_t val);
#else
static LWS_INLINE uint64_t lws_stats_bump(
struct lws_context_per_thread *pt, int index, uint64_t bump) {
(void)pt; (void)index; (void)bump; return 0; }
static LWS_INLINE uint64_t lws_stats_max(
struct lws_context_per_thread *pt, int index, uint64_t val) {
(void)pt; (void)index; (void)val; return 0; }
#endif
#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_HUBBUB
hubbub_error
html_parser_cb(const hubbub_token *token, void *pw);
#endif
int
lws_threadpool_tsi_context(struct lws_context *context, int tsi);
void
__lws_wsi_remove_from_sul(struct lws *wsi);
int
lws_seq_pt_init(struct lws_context_per_thread *pt);
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);
extern const struct lws_protocols protocol_abs_client_raw_skt,
protocol_abs_client_unit_test;
void
lws_inform_client_conn_fail(struct lws *wsi, void *arg, size_t len);
#ifdef __cplusplus
};
#endif
#endif
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