| /* | |
| * Copyright (C) Igor Sysoev | |
| * Copyright (C) Nginx, Inc. | |
| */ | |
| #include <ngx_config.h> | |
| #include <ngx_core.h> | |
| #include <ngx_event.h> | |
| static ngx_int_t ngx_enable_accept_events(ngx_cycle_t *cycle); | |
| static ngx_int_t ngx_disable_accept_events(ngx_cycle_t *cycle, ngx_uint_t all); | |
| static void ngx_close_accepted_connection(ngx_connection_t *c); | |
| #if (NGX_DEBUG) | |
| static void ngx_debug_accepted_connection(ngx_event_conf_t *ecf, | |
| ngx_connection_t *c); | |
| #endif | |
| void | |
| ngx_event_accept(ngx_event_t *ev) | |
| { | |
| socklen_t socklen; | |
| ngx_err_t err; | |
| ngx_log_t *log; | |
| ngx_uint_t level; | |
| ngx_socket_t s; | |
| ngx_event_t *rev, *wev; | |
| ngx_sockaddr_t sa; | |
| ngx_listening_t *ls; | |
| ngx_connection_t *c, *lc; | |
| ngx_event_conf_t *ecf; | |
| #if (NGX_HAVE_ACCEPT4) | |
| static ngx_uint_t use_accept4 = 1; | |
| #endif | |
| if (ev->timedout) { | |
| if (ngx_enable_accept_events((ngx_cycle_t *) ngx_cycle) != NGX_OK) { | |
| return; | |
| } | |
| ev->timedout = 0; | |
| } | |
| ecf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_event_core_module); | |
| if (!(ngx_event_flags & NGX_USE_KQUEUE_EVENT)) { | |
| ev->available = ecf->multi_accept; | |
| } | |
| lc = ev->data; | |
| ls = lc->listening; | |
| ev->ready = 0; | |
| ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, | |
| "accept on %V, ready: %d", &ls->addr_text, ev->available); | |
| do { | |
| socklen = sizeof(ngx_sockaddr_t); | |
| #if (NGX_HAVE_ACCEPT4) | |
| if (use_accept4) { | |
| s = accept4(lc->fd, &sa.sockaddr, &socklen, SOCK_NONBLOCK); | |
| } else { | |
| s = accept(lc->fd, &sa.sockaddr, &socklen); | |
| } | |
| #else | |
| s = accept(lc->fd, &sa.sockaddr, &socklen); | |
| #endif | |
| if (s == (ngx_socket_t) -1) { | |
| err = ngx_socket_errno; | |
| if (err == NGX_EAGAIN) { | |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, err, | |
| "accept() not ready"); | |
| return; | |
| } | |
| level = NGX_LOG_ALERT; | |
| if (err == NGX_ECONNABORTED) { | |
| level = NGX_LOG_ERR; | |
| } else if (err == NGX_EMFILE || err == NGX_ENFILE) { | |
| level = NGX_LOG_CRIT; | |
| } | |
| #if (NGX_HAVE_ACCEPT4) | |
| ngx_log_error(level, ev->log, err, | |
| use_accept4 ? "accept4() failed" : "accept() failed"); | |
| if (use_accept4 && err == NGX_ENOSYS) { | |
| use_accept4 = 0; | |
| ngx_inherited_nonblocking = 0; | |
| continue; | |
| } | |
| #else | |
| ngx_log_error(level, ev->log, err, "accept() failed"); | |
| #endif | |
| if (err == NGX_ECONNABORTED) { | |
| if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| ev->available--; | |
| } | |
| if (ev->available) { | |
| continue; | |
| } | |
| } | |
| if (err == NGX_EMFILE || err == NGX_ENFILE) { | |
| if (ngx_disable_accept_events((ngx_cycle_t *) ngx_cycle, 1) | |
| != NGX_OK) | |
| { | |
| return; | |
| } | |
| if (ngx_use_accept_mutex) { | |
| if (ngx_accept_mutex_held) { | |
| ngx_shmtx_unlock(&ngx_accept_mutex); | |
| ngx_accept_mutex_held = 0; | |
| } | |
| ngx_accept_disabled = 1; | |
| } else { | |
| ngx_add_timer(ev, ecf->accept_mutex_delay); | |
| } | |
| } | |
| return; | |
| } | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_accepted, 1); | |
| #endif | |
| ngx_accept_disabled = ngx_cycle->connection_n / 8 | |
| - ngx_cycle->free_connection_n; | |
| c = ngx_get_connection(s, ev->log); | |
| if (c == NULL) { | |
| if (ngx_close_socket(s) == -1) { | |
| ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, | |
| ngx_close_socket_n " failed"); | |
| } | |
| return; | |
| } | |
| c->type = SOCK_STREAM; | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_active, 1); | |
| #endif | |
| c->pool = ngx_create_pool(ls->pool_size, ev->log); | |
| if (c->pool == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| c->sockaddr = ngx_palloc(c->pool, socklen); | |
| if (c->sockaddr == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| ngx_memcpy(c->sockaddr, &sa, socklen); | |
| log = ngx_palloc(c->pool, sizeof(ngx_log_t)); | |
| if (log == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| /* set a blocking mode for iocp and non-blocking mode for others */ | |
| if (ngx_inherited_nonblocking) { | |
| if (ngx_event_flags & NGX_USE_IOCP_EVENT) { | |
| if (ngx_blocking(s) == -1) { | |
| ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, | |
| ngx_blocking_n " failed"); | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| } | |
| } else { | |
| if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) { | |
| if (ngx_nonblocking(s) == -1) { | |
| ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_socket_errno, | |
| ngx_nonblocking_n " failed"); | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| } | |
| } | |
| *log = ls->log; | |
| c->recv = ngx_recv; | |
| c->send = ngx_send; | |
| c->recv_chain = ngx_recv_chain; | |
| c->send_chain = ngx_send_chain; | |
| c->log = log; | |
| c->pool->log = log; | |
| c->socklen = socklen; | |
| c->listening = ls; | |
| c->local_sockaddr = ls->sockaddr; | |
| c->local_socklen = ls->socklen; | |
| #if (NGX_HAVE_UNIX_DOMAIN) | |
| if (c->sockaddr->sa_family == AF_UNIX) { | |
| c->tcp_nopush = NGX_TCP_NOPUSH_DISABLED; | |
| c->tcp_nodelay = NGX_TCP_NODELAY_DISABLED; | |
| #if (NGX_SOLARIS) | |
| /* Solaris's sendfilev() supports AF_NCA, AF_INET, and AF_INET6 */ | |
| c->sendfile = 0; | |
| #endif | |
| } | |
| #endif | |
| rev = c->read; | |
| wev = c->write; | |
| wev->ready = 1; | |
| if (ngx_event_flags & NGX_USE_IOCP_EVENT) { | |
| rev->ready = 1; | |
| } | |
| if (ev->deferred_accept) { | |
| rev->ready = 1; | |
| #if (NGX_HAVE_KQUEUE) | |
| rev->available = 1; | |
| #endif | |
| } | |
| rev->log = log; | |
| wev->log = log; | |
| /* | |
| * TODO: MT: - ngx_atomic_fetch_add() | |
| * or protection by critical section or light mutex | |
| * | |
| * TODO: MP: - allocated in a shared memory | |
| * - ngx_atomic_fetch_add() | |
| * or protection by critical section or light mutex | |
| */ | |
| c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_handled, 1); | |
| #endif | |
| if (ls->addr_ntop) { | |
| c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); | |
| if (c->addr_text.data == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->socklen, | |
| c->addr_text.data, | |
| ls->addr_text_max_len, 0); | |
| if (c->addr_text.len == 0) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| } | |
| #if (NGX_DEBUG) | |
| { | |
| ngx_str_t addr; | |
| u_char text[NGX_SOCKADDR_STRLEN]; | |
| ngx_debug_accepted_connection(ecf, c); | |
| if (log->log_level & NGX_LOG_DEBUG_EVENT) { | |
| addr.data = text; | |
| addr.len = ngx_sock_ntop(c->sockaddr, c->socklen, text, | |
| NGX_SOCKADDR_STRLEN, 1); | |
| ngx_log_debug3(NGX_LOG_DEBUG_EVENT, log, 0, | |
| "*%uA accept: %V fd:%d", c->number, &addr, s); | |
| } | |
| } | |
| #endif | |
| if (ngx_add_conn && (ngx_event_flags & NGX_USE_EPOLL_EVENT) == 0) { | |
| if (ngx_add_conn(c) == NGX_ERROR) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| } | |
| log->data = NULL; | |
| log->handler = NULL; | |
| ls->handler(c); | |
| if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| ev->available--; | |
| } | |
| } while (ev->available); | |
| } | |
| #if !(NGX_WIN32) | |
| void | |
| ngx_event_recvmsg(ngx_event_t *ev) | |
| { | |
| ssize_t n; | |
| ngx_log_t *log; | |
| ngx_err_t err; | |
| ngx_event_t *rev, *wev; | |
| struct iovec iov[1]; | |
| struct msghdr msg; | |
| ngx_sockaddr_t sa; | |
| ngx_listening_t *ls; | |
| ngx_event_conf_t *ecf; | |
| ngx_connection_t *c, *lc; | |
| static u_char buffer[65535]; | |
| #if (NGX_HAVE_MSGHDR_MSG_CONTROL) | |
| #if (NGX_HAVE_IP_RECVDSTADDR) | |
| u_char msg_control[CMSG_SPACE(sizeof(struct in_addr))]; | |
| #elif (NGX_HAVE_IP_PKTINFO) | |
| u_char msg_control[CMSG_SPACE(sizeof(struct in_pktinfo))]; | |
| #endif | |
| #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) | |
| u_char msg_control6[CMSG_SPACE(sizeof(struct in6_pktinfo))]; | |
| #endif | |
| #endif | |
| if (ev->timedout) { | |
| if (ngx_enable_accept_events((ngx_cycle_t *) ngx_cycle) != NGX_OK) { | |
| return; | |
| } | |
| ev->timedout = 0; | |
| } | |
| ecf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_event_core_module); | |
| if (!(ngx_event_flags & NGX_USE_KQUEUE_EVENT)) { | |
| ev->available = ecf->multi_accept; | |
| } | |
| lc = ev->data; | |
| ls = lc->listening; | |
| ev->ready = 0; | |
| ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, | |
| "recvmsg on %V, ready: %d", &ls->addr_text, ev->available); | |
| do { | |
| ngx_memzero(&msg, sizeof(struct msghdr)); | |
| iov[0].iov_base = (void *) buffer; | |
| iov[0].iov_len = sizeof(buffer); | |
| msg.msg_name = &sa; | |
| msg.msg_namelen = sizeof(ngx_sockaddr_t); | |
| msg.msg_iov = iov; | |
| msg.msg_iovlen = 1; | |
| #if (NGX_HAVE_MSGHDR_MSG_CONTROL) | |
| if (ls->wildcard) { | |
| #if (NGX_HAVE_IP_RECVDSTADDR || NGX_HAVE_IP_PKTINFO) | |
| if (ls->sockaddr->sa_family == AF_INET) { | |
| msg.msg_control = &msg_control; | |
| msg.msg_controllen = sizeof(msg_control); | |
| } | |
| #endif | |
| #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) | |
| if (ls->sockaddr->sa_family == AF_INET6) { | |
| msg.msg_control = &msg_control6; | |
| msg.msg_controllen = sizeof(msg_control6); | |
| } | |
| #endif | |
| } | |
| #endif | |
| n = recvmsg(lc->fd, &msg, 0); | |
| if (n == -1) { | |
| err = ngx_socket_errno; | |
| if (err == NGX_EAGAIN) { | |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, err, | |
| "recvmsg() not ready"); | |
| return; | |
| } | |
| ngx_log_error(NGX_LOG_ALERT, ev->log, err, "recvmsg() failed"); | |
| return; | |
| } | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_accepted, 1); | |
| #endif | |
| #if (NGX_HAVE_MSGHDR_MSG_CONTROL) | |
| if (msg.msg_flags & (MSG_TRUNC|MSG_CTRUNC)) { | |
| ngx_log_error(NGX_LOG_ALERT, ev->log, 0, | |
| "recvmsg() truncated data"); | |
| continue; | |
| } | |
| #endif | |
| ngx_accept_disabled = ngx_cycle->connection_n / 8 | |
| - ngx_cycle->free_connection_n; | |
| c = ngx_get_connection(lc->fd, ev->log); | |
| if (c == NULL) { | |
| return; | |
| } | |
| c->shared = 1; | |
| c->type = SOCK_DGRAM; | |
| c->socklen = msg.msg_namelen; | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_active, 1); | |
| #endif | |
| c->pool = ngx_create_pool(ls->pool_size, ev->log); | |
| if (c->pool == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| c->sockaddr = ngx_palloc(c->pool, c->socklen); | |
| if (c->sockaddr == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| ngx_memcpy(c->sockaddr, msg.msg_name, c->socklen); | |
| log = ngx_palloc(c->pool, sizeof(ngx_log_t)); | |
| if (log == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| *log = ls->log; | |
| c->send = ngx_udp_send; | |
| c->send_chain = ngx_udp_send_chain; | |
| c->log = log; | |
| c->pool->log = log; | |
| c->listening = ls; | |
| c->local_sockaddr = ls->sockaddr; | |
| c->local_socklen = ls->socklen; | |
| #if (NGX_HAVE_MSGHDR_MSG_CONTROL) | |
| if (ls->wildcard) { | |
| struct cmsghdr *cmsg; | |
| struct sockaddr *sockaddr; | |
| sockaddr = ngx_palloc(c->pool, c->local_socklen); | |
| if (sockaddr == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| ngx_memcpy(sockaddr, c->local_sockaddr, c->local_socklen); | |
| c->local_sockaddr = sockaddr; | |
| for (cmsg = CMSG_FIRSTHDR(&msg); | |
| cmsg != NULL; | |
| cmsg = CMSG_NXTHDR(&msg, cmsg)) | |
| { | |
| #if (NGX_HAVE_IP_RECVDSTADDR) | |
| if (cmsg->cmsg_level == IPPROTO_IP | |
| && cmsg->cmsg_type == IP_RECVDSTADDR | |
| && sockaddr->sa_family == AF_INET) | |
| { | |
| struct in_addr *addr; | |
| struct sockaddr_in *sin; | |
| addr = (struct in_addr *) CMSG_DATA(cmsg); | |
| sin = (struct sockaddr_in *) sockaddr; | |
| sin->sin_addr = *addr; | |
| break; | |
| } | |
| #elif (NGX_HAVE_IP_PKTINFO) | |
| if (cmsg->cmsg_level == IPPROTO_IP | |
| && cmsg->cmsg_type == IP_PKTINFO | |
| && sockaddr->sa_family == AF_INET) | |
| { | |
| struct in_pktinfo *pkt; | |
| struct sockaddr_in *sin; | |
| pkt = (struct in_pktinfo *) CMSG_DATA(cmsg); | |
| sin = (struct sockaddr_in *) sockaddr; | |
| sin->sin_addr = pkt->ipi_addr; | |
| break; | |
| } | |
| #endif | |
| #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) | |
| if (cmsg->cmsg_level == IPPROTO_IPV6 | |
| && cmsg->cmsg_type == IPV6_PKTINFO | |
| && sockaddr->sa_family == AF_INET6) | |
| { | |
| struct in6_pktinfo *pkt6; | |
| struct sockaddr_in6 *sin6; | |
| pkt6 = (struct in6_pktinfo *) CMSG_DATA(cmsg); | |
| sin6 = (struct sockaddr_in6 *) sockaddr; | |
| sin6->sin6_addr = pkt6->ipi6_addr; | |
| break; | |
| } | |
| #endif | |
| } | |
| } | |
| #endif | |
| c->buffer = ngx_create_temp_buf(c->pool, n); | |
| if (c->buffer == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| c->buffer->last = ngx_cpymem(c->buffer->last, buffer, n); | |
| rev = c->read; | |
| wev = c->write; | |
| wev->ready = 1; | |
| rev->log = log; | |
| wev->log = log; | |
| /* | |
| * TODO: MT: - ngx_atomic_fetch_add() | |
| * or protection by critical section or light mutex | |
| * | |
| * TODO: MP: - allocated in a shared memory | |
| * - ngx_atomic_fetch_add() | |
| * or protection by critical section or light mutex | |
| */ | |
| c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1); | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_handled, 1); | |
| #endif | |
| if (ls->addr_ntop) { | |
| c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len); | |
| if (c->addr_text.data == NULL) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->socklen, | |
| c->addr_text.data, | |
| ls->addr_text_max_len, 0); | |
| if (c->addr_text.len == 0) { | |
| ngx_close_accepted_connection(c); | |
| return; | |
| } | |
| } | |
| #if (NGX_DEBUG) | |
| { | |
| ngx_str_t addr; | |
| u_char text[NGX_SOCKADDR_STRLEN]; | |
| ngx_debug_accepted_connection(ecf, c); | |
| if (log->log_level & NGX_LOG_DEBUG_EVENT) { | |
| addr.data = text; | |
| addr.len = ngx_sock_ntop(c->sockaddr, c->socklen, text, | |
| NGX_SOCKADDR_STRLEN, 1); | |
| ngx_log_debug4(NGX_LOG_DEBUG_EVENT, log, 0, | |
| "*%uA recvmsg: %V fd:%d n:%z", | |
| c->number, &addr, c->fd, n); | |
| } | |
| } | |
| #endif | |
| log->data = NULL; | |
| log->handler = NULL; | |
| ls->handler(c); | |
| if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { | |
| ev->available -= n; | |
| } | |
| } while (ev->available); | |
| } | |
| #endif | |
| ngx_int_t | |
| ngx_trylock_accept_mutex(ngx_cycle_t *cycle) | |
| { | |
| if (ngx_shmtx_trylock(&ngx_accept_mutex)) { | |
| ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
| "accept mutex locked"); | |
| if (ngx_accept_mutex_held && ngx_accept_events == 0) { | |
| return NGX_OK; | |
| } | |
| if (ngx_enable_accept_events(cycle) == NGX_ERROR) { | |
| ngx_shmtx_unlock(&ngx_accept_mutex); | |
| return NGX_ERROR; | |
| } | |
| ngx_accept_events = 0; | |
| ngx_accept_mutex_held = 1; | |
| return NGX_OK; | |
| } | |
| ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | |
| "accept mutex lock failed: %ui", ngx_accept_mutex_held); | |
| if (ngx_accept_mutex_held) { | |
| if (ngx_disable_accept_events(cycle, 0) == NGX_ERROR) { | |
| return NGX_ERROR; | |
| } | |
| ngx_accept_mutex_held = 0; | |
| } | |
| return NGX_OK; | |
| } | |
| static ngx_int_t | |
| ngx_enable_accept_events(ngx_cycle_t *cycle) | |
| { | |
| ngx_uint_t i; | |
| ngx_listening_t *ls; | |
| ngx_connection_t *c; | |
| ls = cycle->listening.elts; | |
| for (i = 0; i < cycle->listening.nelts; i++) { | |
| c = ls[i].connection; | |
| if (c == NULL || c->read->active) { | |
| continue; | |
| } | |
| if (ngx_add_event(c->read, NGX_READ_EVENT, 0) == NGX_ERROR) { | |
| return NGX_ERROR; | |
| } | |
| } | |
| return NGX_OK; | |
| } | |
| static ngx_int_t | |
| ngx_disable_accept_events(ngx_cycle_t *cycle, ngx_uint_t all) | |
| { | |
| ngx_uint_t i; | |
| ngx_listening_t *ls; | |
| ngx_connection_t *c; | |
| ls = cycle->listening.elts; | |
| for (i = 0; i < cycle->listening.nelts; i++) { | |
| c = ls[i].connection; | |
| if (c == NULL || !c->read->active) { | |
| continue; | |
| } | |
| #if (NGX_HAVE_REUSEPORT) | |
| /* | |
| * do not disable accept on worker's own sockets | |
| * when disabling accept events due to accept mutex | |
| */ | |
| if (ls[i].reuseport && !all) { | |
| continue; | |
| } | |
| #endif | |
| if (ngx_del_event(c->read, NGX_READ_EVENT, NGX_DISABLE_EVENT) | |
| == NGX_ERROR) | |
| { | |
| return NGX_ERROR; | |
| } | |
| } | |
| return NGX_OK; | |
| } | |
| static void | |
| ngx_close_accepted_connection(ngx_connection_t *c) | |
| { | |
| ngx_socket_t fd; | |
| ngx_free_connection(c); | |
| fd = c->fd; | |
| c->fd = (ngx_socket_t) -1; | |
| if (!c->shared && ngx_close_socket(fd) == -1) { | |
| ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, | |
| ngx_close_socket_n " failed"); | |
| } | |
| if (c->pool) { | |
| ngx_destroy_pool(c->pool); | |
| } | |
| #if (NGX_STAT_STUB) | |
| (void) ngx_atomic_fetch_add(ngx_stat_active, -1); | |
| #endif | |
| } | |
| u_char * | |
| ngx_accept_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
| { | |
| return ngx_snprintf(buf, len, " while accepting new connection on %V", | |
| log->data); | |
| } | |
| #if (NGX_DEBUG) | |
| static void | |
| ngx_debug_accepted_connection(ngx_event_conf_t *ecf, ngx_connection_t *c) | |
| { | |
| struct sockaddr_in *sin; | |
| ngx_cidr_t *cidr; | |
| ngx_uint_t i; | |
| #if (NGX_HAVE_INET6) | |
| struct sockaddr_in6 *sin6; | |
| ngx_uint_t n; | |
| #endif | |
| cidr = ecf->debug_connection.elts; | |
| for (i = 0; i < ecf->debug_connection.nelts; i++) { | |
| if (cidr[i].family != (ngx_uint_t) c->sockaddr->sa_family) { | |
| goto next; | |
| } | |
| switch (cidr[i].family) { | |
| #if (NGX_HAVE_INET6) | |
| case AF_INET6: | |
| sin6 = (struct sockaddr_in6 *) c->sockaddr; | |
| for (n = 0; n < 16; n++) { | |
| if ((sin6->sin6_addr.s6_addr[n] | |
| & cidr[i].u.in6.mask.s6_addr[n]) | |
| != cidr[i].u.in6.addr.s6_addr[n]) | |
| { | |
| goto next; | |
| } | |
| } | |
| break; | |
| #endif | |
| #if (NGX_HAVE_UNIX_DOMAIN) | |
| case AF_UNIX: | |
| break; | |
| #endif | |
| default: /* AF_INET */ | |
| sin = (struct sockaddr_in *) c->sockaddr; | |
| if ((sin->sin_addr.s_addr & cidr[i].u.in.mask) | |
| != cidr[i].u.in.addr) | |
| { | |
| goto next; | |
| } | |
| break; | |
| } | |
| c->log->log_level = NGX_LOG_DEBUG_CONNECTION|NGX_LOG_DEBUG_ALL; | |
| break; | |
| next: | |
| continue; | |
| } | |
| } | |
| #endif |