void ngx_tcp_send(ngx_event_t *wev) { ngx_int_t n; ngx_connection_t *c; ngx_tcp_session_t *s; ngx_tcp_core_srv_conf_t *cscf; c = wev->data; s = c->data; if (wev->timedout) { ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); c->timedout = 1; ngx_tcp_close_connection(c); return; } if (s->out.len == 0) { if (ngx_handle_write_event(c->write, 0) != NGX_OK) { ngx_tcp_close_connection(c); } return; } n = c->send(c, s->out.data, s->out.len); ngx_log_debug1(NGX_LOG_DEBUG_EVENT, wev->log, 0, "nginx tcp send:%d", n); if (n > 0) { s->out.len -= n; if (wev->timer_set) { ngx_del_timer(wev); } if (s->quit) { ngx_tcp_close_connection(c); return; } return; } if (n == NGX_ERROR) { ngx_tcp_close_connection(c); return; } /* n == NGX_AGAIN */ cscf = ngx_tcp_get_module_srv_conf(s, ngx_tcp_core_module); ngx_add_timer(c->write, cscf->timeout); if (ngx_handle_write_event(c->write, 0) != NGX_OK) { ngx_tcp_close_connection(c); return; } }
void ngx_tcp_send(ngx_event_t *wev) { ngx_int_t rc; ngx_connection_t *c; ngx_tcp_session_t *s; ngx_tcp_core_srv_conf_t *cscf; c = wev->data; s = c->data; if (wev->timedout) { ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "%s|%d|%s|client timed out",__FILE__, __LINE__, __FUNCTION__); c->timedout = 1; ngx_tcp_close_connection(c); return; } if (s->output_buffer_chain == NULL) { return; } // rc = s->output_ctx->output_filter(s->output_ctx->filter_ctx, //s->output_buffer_chain); rc = s->output_ctx->output_filter(s); ngx_chain_update_chains(s->output_ctx->pool, &s->output_ctx->free, &s->output_ctx->busy, &s->output_buffer_chain, s->output_ctx->tag); s->output_buffer_chain = NULL; if (rc == NGX_OK || rc == NGX_DONE) { if (wev->timer_set) { ngx_del_timer(wev); } return; } if (rc == NGX_ERROR) { ngx_log_error(NGX_LOG_ERR, c->log, 0, "ngx_tcp_send|client=%V\n", &c->addr_text); ngx_tcp_close_connection(c); return; } /* rc == NGX_AGAIN */ /* ngx_log_error(NGX_LOG_INFO, c->log, 0, "ngx_tcp_send|NGX_AGAIN|client=%V\n", &c->addr_text); */ cscf = ngx_tcp_get_module_srv_conf(s, ngx_tcp_core_module); ngx_add_timer(c->write, cscf->timeout); if (ngx_handle_write_event(c->write, 0) != NGX_OK) { ngx_tcp_close_connection(c); return; } }
void ngx_tcp_init_connection(ngx_connection_t *c) { ngx_event_t *rev; ngx_tcp_log_ctx_t *ctx; ctx = ngx_palloc(c->pool, sizeof(ngx_tcp_log_ctx_t)); if (ctx == NULL) { ngx_tcp_close_connection(c); return; } ctx->client = NULL; ctx->session = NULL; c->log->connection = c->number; c->log->handler = ngx_tcp_log_error; c->log->data = ctx; c->log->action = "client init tcp connection"; c->log_error = NGX_ERROR_INFO; rev = c->read; rev->handler = ngx_tcp_init_session; c->write->handler = ngx_tcp_empty_handler; /* #if (NGX_STAT_STUB) (void) ngx_atomic_fetch_add(ngx_stat_reading, 1); #endif */ if (rev->ready) { /* the deferred accept(), rtsig, aio, iocp */ if (ngx_use_accept_mutex) { ngx_post_event(rev, &ngx_posted_events); return; } ngx_tcp_init_session(rev); return; } ngx_add_timer(rev, c->listening->post_accept_timeout); if (ngx_handle_read_event(rev, 0) != NGX_OK) { /* #if (NGX_STAT_STUB) (void) ngx_atomic_fetch_add(ngx_stat_reading, -1); #endif */ ngx_tcp_close_connection(c); return; } }
static void ngx_tcp_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) { ngx_tcp_session_t *s; ngx_tcp_core_srv_conf_t *cscf; if (ngx_ssl_create_connection(ssl, c, NGX_SSL_BUFFER) == NGX_ERROR) { ngx_tcp_close_connection(c); return; } if (ngx_ssl_handshake(c) == NGX_AGAIN) { s = c->data; cscf = ngx_tcp_get_module_srv_conf(s, ngx_tcp_core_module); ngx_add_timer(c->read, cscf->timeout); c->ssl->handler = ngx_tcp_ssl_handshake_handler; return; } ngx_tcp_ssl_handshake_handler(c); }
static void ngx_tcp_ssl_handshake_handler(ngx_connection_t *c) { ngx_tcp_session_t *s; ngx_tcp_core_srv_conf_t *cscf; if (c->ssl->handshaked) { s = c->data; if (s->starttls) { cscf = ngx_tcp_get_module_srv_conf(s, ngx_tcp_core_module); c->read->handler = cscf->protocol->init_protocol; c->write->handler = ngx_tcp_send; cscf->protocol->init_protocol(c->read); return; } c->read->ready = 0; ngx_tcp_init_session(c); return; } ngx_tcp_close_connection(c); }
void ngx_tcp_lua_close_session(ngx_tcp_session_t *s) { ngx_connection_t *c; ngx_tcp_cleanup_t *cln; #if (NGX_STAT_STUB) if (s->stat_reading) { (void) ngx_atomic_fetch_add(ngx_stat_reading, -1); } if (s->stat_writing) { (void) ngx_atomic_fetch_add(ngx_stat_writing, -1); } #endif c = s->connection; ngx_log_debug0(NGX_LOG_DEBUG_TCP, c->log, 0, "ngx_tcp_lua_close_session"); for (cln = s->cleanup; cln; cln = cln->next) { if (cln->handler) { cln->handler(cln->data); cln->handler = NULL; } } ngx_destroy_pool(s->pool); ngx_tcp_close_connection(c); return; }
static void ngx_tcp_lua_req_keepalive_handler(ngx_tcp_session_t *s) { ngx_connection_t *c; ngx_event_t *rev; c = s->connection; rev = c->read; if (rev->timedout) { ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); ngx_tcp_lua_close_session(s); return; } if (c->close) { ngx_tcp_lua_close_session(s); return; } //have data or close event //tmp ngx_tcp_test_reading(s); if (!c->read->ready) { if (!c->error) { ngx_log_error(NGX_LOG_INFO, c->log, 0, "weird, no event call this function"); return;// XXX . add return due to this weird thing really happened. } ngx_tcp_lua_close_session(s); return; } c->idle = 0; ngx_reusable_connection(c, 0); //s->write_event_handler = ngx_tcp_session_empty_handler; s->read_event_handler = ngx_tcp_lua_check_client_abort_handler; if (rev->timer_set) { ngx_del_timer(rev); } if (ngx_tcp_lua_init_light_session(s) != NGX_OK) { ngx_tcp_close_connection(c); return; } c->log->action = "start new session"; ngx_tcp_lua_req_resume(s); }
static void ngx_tcp_ssl_handshake_handler(ngx_connection_t *c) { if (c->ssl->handshaked) { c->read->ready = 0; ngx_tcp_init_session(c); return; } ngx_tcp_close_connection(c); }
void ngx_tcp_finalize_session(ngx_tcp_session_t *s) { ngx_connection_t *c; ngx_tcp_cleanup_t *cln; c = s->connection; //ngx_tcp_access_log_handler(s); ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "close tcp session: %d", c->fd); for (cln = s->cleanup; cln; cln = cln->next) { if (cln->handler) { cln->handler(cln->data); cln->handler = NULL; } } ngx_tcp_close_connection(c); return; }
static void ngx_tcp_init_session(ngx_event_t *rev) { ngx_time_t *tp; ngx_uint_t i; ngx_connection_t *c; struct sockaddr_in *sin; ngx_tcp_port_t *port; ngx_tcp_in_addr_t *addr; ngx_tcp_log_ctx_t *ctx; ngx_tcp_addr_conf_t *addr_conf; ngx_tcp_session_t *s; #if (NGX_HAVE_INET6) struct sockaddr_in6 *sin6; ngx_tcp_in6_addr_t *addr6; #endif ngx_tcp_core_srv_conf_t *cscf; /* #if (NGX_STAT_STUB) (void) ngx_atomic_fetch_add(ngx_stat_reading, -1); #endif */ c = rev->data; s = c->data; if (s == NULL) { s = ngx_pcalloc(c->pool, sizeof(ngx_tcp_session_t)); if (s == NULL) { ngx_tcp_close_connection(c); return; } c->data = s; } ctx = c->log->data; ctx->session= s; ctx->client= &c->addr_text; c->requests++; s->connection = c; s->signature = NGX_TCP_MODULE; /* find the server configuration for the address:port */ port = c->listening->servers; if (port->naddrs > 1) { /* * there are several addresses on this port and one of them * is an "*:port" wildcard so getsockname() in ngx_tcp_server_addr() * is required to determine a server address */ if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { ngx_tcp_close_connection(c); return; } switch (c->local_sockaddr->sa_family) { #if (NGX_HAVE_INET6) case AF_INET6: sin6 = (struct sockaddr_in6 *) c->local_sockaddr; addr6 = port->addrs; /* the last address is "*" */ for (i = 0; i < port->naddrs - 1; i++) { if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) { break; } } addr_conf = &addr6[i].conf; break; #endif default: /* AF_INET */ sin = (struct sockaddr_in *) c->local_sockaddr; addr = port->addrs; /* the last address is "*" */ for (i = 0; i < port->naddrs - 1; i++) { if (addr[i].addr == sin->sin_addr.s_addr) { break; } } addr_conf = &addr[i].conf; break; } } else { switch (c->local_sockaddr->sa_family) { #if (NGX_HAVE_INET6) case AF_INET6: addr6 = port->addrs; addr_conf = &addr6[0].conf; break; #endif default: /* AF_INET */ addr = port->addrs; addr_conf = &addr[0].conf; break; } } if (addr_conf->default_ctx) { s->main_conf = addr_conf->default_ctx->main_conf; s->srv_conf = addr_conf->default_ctx->srv_conf; } else { s->main_conf = addr_conf->ctx->main_conf; s->srv_conf = addr_conf->ctx->srv_conf; } s->addr_text = &addr_conf->addr_text; if (rev->timedout) { ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); ngx_tcp_close_connection(c); return; } rev->handler = ngx_tcp_process_session; //s->read_event_handler = ngx_tcp_block_reading; /* #if (NGX_HTTP_SSL) { ngx_tcp_ssl_srv_conf_t *sscf; sscf = ngx_tcp_get_module_srv_conf(r, ngx_tcp_ssl_module); if (sscf->enable || addr_conf->ssl) { if (c->ssl == NULL) { c->log->action = "SSL handshaking"; if (addr_conf->ssl && sscf->ssl.ctx == NULL) { ngx_log_error(NGX_LOG_ERR, c->log, 0, "no \"ssl_certificate\" is defined " "in server listening on SSL port"); ngx_tcp_close_connection(c); return; } if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER) != NGX_OK) { ngx_tcp_close_connection(c); return; } rev->handler = ngx_tcp_ssl_handshake; } r->main_filter_need_in_memory = 1; } } #endif */ s->pool = c->pool; cscf = ngx_tcp_get_module_srv_conf(s, ngx_tcp_core_module); if (cscf == NULL) { ngx_tcp_finalize_session(s); return; } s->ctx = ngx_pcalloc(s->pool, sizeof(void *) * ngx_tcp_max_module); if (s->ctx == NULL) { ngx_tcp_finalize_session(s); return; } tp = ngx_timeofday(); s->start_sec = tp->sec; s->start_msec = tp->msec; s->bytes_read = 0; s->bytes_write = 0; ngx_tcp_set_session_socket(s); /* #if (NGX_STAT_STUB) (void) ngx_atomic_fetch_add(ngx_stat_reading, 1); r->stat_reading = 1; (void) ngx_atomic_fetch_add(ngx_stat_requests, 1); #endif */ rev->handler(rev); }
void ngx_tcp_init_connection(ngx_connection_t *c) { ngx_uint_t i; ngx_tcp_port_t *port; struct sockaddr *sa; struct sockaddr_in *sin; ngx_tcp_log_ctx_t *ctx; ngx_tcp_in_addr_t *addr; ngx_tcp_session_t *s; ngx_tcp_addr_conf_t *addr_conf; ngx_tcp_core_srv_conf_t *cscf; #if (NGX_HAVE_INET6) struct sockaddr_in6 *sin6; ngx_tcp_in6_addr_t *addr6; #endif /* find the server configuration for the address:port */ port = c->listening->servers; if (port && port->naddrs > 1) { /* * There are several addresses on this port and one of them * is the "*:port" wildcard so getsockname() is needed to determine * the server address. * * AcceptEx() already gave this address. */ if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { ngx_tcp_close_connection(c); return; } sa = c->local_sockaddr; switch (sa->sa_family) { #if (NGX_HAVE_INET6) case AF_INET6: sin6 = (struct sockaddr_in6 *) sa; addr6 = port->addrs; /* the last address is "*" */ for (i = 0; i < port->naddrs - 1; i++) { if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) { break; } } addr_conf = &addr6[i].conf; break; #endif default: /* AF_INET */ sin = (struct sockaddr_in *) sa; addr = port->addrs; /* the last address is "*" */ for (i = 0; i < port->naddrs - 1; i++) { if (addr[i].addr == sin->sin_addr.s_addr) { break; } } addr_conf = &addr[i].conf; break; } } else { switch (c->local_sockaddr->sa_family) { #if (NGX_HAVE_INET6) case AF_INET6: addr6 = port->addrs; addr_conf = &addr6[0].conf; break; #endif case AF_INET: addr = port->addrs; addr_conf = &addr[0].conf; break; default: /* AF_UNIX */ addr = port->addrs; addr_conf = &addr[0].conf; break; } } cscf = ngx_tcp_get_module_srv_conf(addr_conf->ctx, ngx_tcp_core_module); s = cscf->protocol->create_session(c); if (s == NULL) { ngx_tcp_close_connection(c); return; } s->main_conf = addr_conf->ctx->main_conf; s->srv_conf = addr_conf->ctx->srv_conf; s->addr_text = &addr_conf->addr_text; c->data = s; s->connection = c; ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V", c->number, &c->addr_text, s->addr_text); ctx = ngx_palloc(c->pool, sizeof(ngx_tcp_log_ctx_t)); if (ctx == NULL) { ngx_tcp_close_connection(c); return; } ctx->client = &c->addr_text; ctx->session = s; c->log->connection = c->number; c->log->handler = ngx_tcp_log_error_msg; c->log->data = ctx; c->log->action = "sending client greeting line"; c->log_error = NGX_ERROR_INFO; #if (NGX_TCP_SSL) { ngx_tcp_ssl_conf_t *sslcf; sslcf = ngx_tcp_get_module_srv_conf(s, ngx_tcp_ssl_module); if (sslcf->enable) { c->log->action = "SSL handshaking"; ngx_tcp_ssl_init_connection(&sslcf->ssl, c); return; } if (addr_conf->ssl) { c->log->action = "SSL handshaking"; if (sslcf->ssl.ctx == NULL) { ngx_log_error(NGX_LOG_ERR, c->log, 0, "no \"ssl_certificate\" is defined " "in server listening on SSL port"); ngx_tcp_close_connection(c); return; } ngx_tcp_ssl_init_connection(&sslcf->ssl, c); return; } } #endif ngx_tcp_init_session(c); }