| |
| /* |
| * Copyright (C) Roman Arutyunyan |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_stream.h> |
| |
| |
| static ngx_int_t ngx_stream_core_preconfiguration(ngx_conf_t *cf); |
| static void *ngx_stream_core_create_main_conf(ngx_conf_t *cf); |
| static char *ngx_stream_core_init_main_conf(ngx_conf_t *cf, void *conf); |
| static void *ngx_stream_core_create_srv_conf(ngx_conf_t *cf); |
| static char *ngx_stream_core_merge_srv_conf(ngx_conf_t *cf, void *parent, |
| void *child); |
| static char *ngx_stream_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_stream_core_server(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_stream_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_stream_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| |
| |
| static ngx_command_t ngx_stream_core_commands[] = { |
| |
| { ngx_string("variables_hash_max_size"), |
| NGX_STREAM_MAIN_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_num_slot, |
| NGX_STREAM_MAIN_CONF_OFFSET, |
| offsetof(ngx_stream_core_main_conf_t, variables_hash_max_size), |
| NULL }, |
| |
| { ngx_string("variables_hash_bucket_size"), |
| NGX_STREAM_MAIN_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_num_slot, |
| NGX_STREAM_MAIN_CONF_OFFSET, |
| offsetof(ngx_stream_core_main_conf_t, variables_hash_bucket_size), |
| NULL }, |
| |
| { ngx_string("server"), |
| NGX_STREAM_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, |
| ngx_stream_core_server, |
| 0, |
| 0, |
| NULL }, |
| |
| { ngx_string("listen"), |
| NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, |
| ngx_stream_core_listen, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("error_log"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, |
| ngx_stream_core_error_log, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("resolver"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, |
| ngx_stream_core_resolver, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("resolver_timeout"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_core_srv_conf_t, resolver_timeout), |
| NULL }, |
| |
| { ngx_string("proxy_protocol_timeout"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_core_srv_conf_t, proxy_protocol_timeout), |
| NULL }, |
| |
| { ngx_string("tcp_nodelay"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_core_srv_conf_t, tcp_nodelay), |
| NULL }, |
| |
| { ngx_string("preread_buffer_size"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_core_srv_conf_t, preread_buffer_size), |
| NULL }, |
| |
| { ngx_string("preread_timeout"), |
| NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| NGX_STREAM_SRV_CONF_OFFSET, |
| offsetof(ngx_stream_core_srv_conf_t, preread_timeout), |
| NULL }, |
| |
| ngx_null_command |
| }; |
| |
| |
| static ngx_stream_module_t ngx_stream_core_module_ctx = { |
| ngx_stream_core_preconfiguration, /* preconfiguration */ |
| NULL, /* postconfiguration */ |
| |
| ngx_stream_core_create_main_conf, /* create main configuration */ |
| ngx_stream_core_init_main_conf, /* init main configuration */ |
| |
| ngx_stream_core_create_srv_conf, /* create server configuration */ |
| ngx_stream_core_merge_srv_conf /* merge server configuration */ |
| }; |
| |
| |
| ngx_module_t ngx_stream_core_module = { |
| NGX_MODULE_V1, |
| &ngx_stream_core_module_ctx, /* module context */ |
| ngx_stream_core_commands, /* module directives */ |
| NGX_STREAM_MODULE, /* module type */ |
| NULL, /* init master */ |
| NULL, /* init module */ |
| NULL, /* init process */ |
| NULL, /* init thread */ |
| NULL, /* exit thread */ |
| NULL, /* exit process */ |
| NULL, /* exit master */ |
| NGX_MODULE_V1_PADDING |
| }; |
| |
| |
| void |
| ngx_stream_core_run_phases(ngx_stream_session_t *s) |
| { |
| ngx_int_t rc; |
| ngx_stream_phase_handler_t *ph; |
| ngx_stream_core_main_conf_t *cmcf; |
| |
| cmcf = ngx_stream_get_module_main_conf(s, ngx_stream_core_module); |
| |
| ph = cmcf->phase_engine.handlers; |
| |
| while (ph[s->phase_handler].checker) { |
| |
| rc = ph[s->phase_handler].checker(s, &ph[s->phase_handler]); |
| |
| if (rc == NGX_OK) { |
| return; |
| } |
| } |
| } |
| |
| |
| ngx_int_t |
| ngx_stream_core_generic_phase(ngx_stream_session_t *s, |
| ngx_stream_phase_handler_t *ph) |
| { |
| ngx_int_t rc; |
| |
| /* |
| * generic phase checker, |
| * used by all phases, except for preread and content |
| */ |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_STREAM, s->connection->log, 0, |
| "generic phase: %ui", s->phase_handler); |
| |
| rc = ph->handler(s); |
| |
| if (rc == NGX_OK) { |
| s->phase_handler = ph->next; |
| return NGX_AGAIN; |
| } |
| |
| if (rc == NGX_DECLINED) { |
| s->phase_handler++; |
| return NGX_AGAIN; |
| } |
| |
| if (rc == NGX_AGAIN || rc == NGX_DONE) { |
| return NGX_OK; |
| } |
| |
| if (rc == NGX_ERROR) { |
| rc = NGX_STREAM_INTERNAL_SERVER_ERROR; |
| } |
| |
| ngx_stream_finalize_session(s, rc); |
| |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_stream_core_preread_phase(ngx_stream_session_t *s, |
| ngx_stream_phase_handler_t *ph) |
| { |
| size_t size; |
| ssize_t n; |
| ngx_int_t rc; |
| ngx_connection_t *c; |
| ngx_stream_core_srv_conf_t *cscf; |
| |
| c = s->connection; |
| |
| c->log->action = "prereading client data"; |
| |
| cscf = ngx_stream_get_module_srv_conf(s, ngx_stream_core_module); |
| |
| if (c->read->timedout) { |
| rc = NGX_STREAM_OK; |
| |
| } else if (c->read->timer_set) { |
| rc = NGX_AGAIN; |
| |
| } else { |
| rc = ph->handler(s); |
| } |
| |
| while (rc == NGX_AGAIN) { |
| |
| if (c->buffer == NULL) { |
| c->buffer = ngx_create_temp_buf(c->pool, cscf->preread_buffer_size); |
| if (c->buffer == NULL) { |
| rc = NGX_ERROR; |
| break; |
| } |
| } |
| |
| size = c->buffer->end - c->buffer->last; |
| |
| if (size == 0) { |
| ngx_log_error(NGX_LOG_ERR, c->log, 0, "preread buffer full"); |
| rc = NGX_STREAM_BAD_REQUEST; |
| break; |
| } |
| |
| if (c->read->eof) { |
| rc = NGX_STREAM_OK; |
| break; |
| } |
| |
| if (!c->read->ready) { |
| if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
| rc = NGX_ERROR; |
| break; |
| } |
| |
| if (!c->read->timer_set) { |
| ngx_add_timer(c->read, cscf->preread_timeout); |
| } |
| |
| c->read->handler = ngx_stream_session_handler; |
| |
| return NGX_OK; |
| } |
| |
| n = c->recv(c, c->buffer->last, size); |
| |
| if (n == NGX_ERROR) { |
| rc = NGX_STREAM_OK; |
| break; |
| } |
| |
| if (n > 0) { |
| c->buffer->last += n; |
| } |
| |
| rc = ph->handler(s); |
| } |
| |
| if (c->read->timer_set) { |
| ngx_del_timer(c->read); |
| } |
| |
| if (rc == NGX_OK) { |
| s->phase_handler = ph->next; |
| return NGX_AGAIN; |
| } |
| |
| if (rc == NGX_DECLINED) { |
| s->phase_handler++; |
| return NGX_AGAIN; |
| } |
| |
| if (rc == NGX_DONE) { |
| return NGX_OK; |
| } |
| |
| if (rc == NGX_ERROR) { |
| rc = NGX_STREAM_INTERNAL_SERVER_ERROR; |
| } |
| |
| ngx_stream_finalize_session(s, rc); |
| |
| return NGX_OK; |
| } |
| |
| |
| ngx_int_t |
| ngx_stream_core_content_phase(ngx_stream_session_t *s, |
| ngx_stream_phase_handler_t *ph) |
| { |
| int tcp_nodelay; |
| ngx_connection_t *c; |
| ngx_stream_core_srv_conf_t *cscf; |
| |
| c = s->connection; |
| |
| c->log->action = NULL; |
| |
| cscf = ngx_stream_get_module_srv_conf(s, ngx_stream_core_module); |
| |
| if (c->type == SOCK_STREAM |
| && cscf->tcp_nodelay |
| && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0, "tcp_nodelay"); |
| |
| tcp_nodelay = 1; |
| |
| if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY, |
| (const void *) &tcp_nodelay, sizeof(int)) == -1) |
| { |
| ngx_connection_error(c, ngx_socket_errno, |
| "setsockopt(TCP_NODELAY) failed"); |
| ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR); |
| return NGX_OK; |
| } |
| |
| c->tcp_nodelay = NGX_TCP_NODELAY_SET; |
| } |
| |
| cscf->handler(s); |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_stream_core_preconfiguration(ngx_conf_t *cf) |
| { |
| return ngx_stream_variables_add_core_vars(cf); |
| } |
| |
| |
| static void * |
| ngx_stream_core_create_main_conf(ngx_conf_t *cf) |
| { |
| ngx_stream_core_main_conf_t *cmcf; |
| |
| cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_core_main_conf_t)); |
| if (cmcf == NULL) { |
| return NULL; |
| } |
| |
| if (ngx_array_init(&cmcf->servers, cf->pool, 4, |
| sizeof(ngx_stream_core_srv_conf_t *)) |
| != NGX_OK) |
| { |
| return NULL; |
| } |
| |
| if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_stream_listen_t)) |
| != NGX_OK) |
| { |
| return NULL; |
| } |
| |
| cmcf->variables_hash_max_size = NGX_CONF_UNSET_UINT; |
| cmcf->variables_hash_bucket_size = NGX_CONF_UNSET_UINT; |
| |
| return cmcf; |
| } |
| |
| |
| static char * |
| ngx_stream_core_init_main_conf(ngx_conf_t *cf, void *conf) |
| { |
| ngx_stream_core_main_conf_t *cmcf = conf; |
| |
| ngx_conf_init_uint_value(cmcf->variables_hash_max_size, 1024); |
| ngx_conf_init_uint_value(cmcf->variables_hash_bucket_size, 64); |
| |
| cmcf->variables_hash_bucket_size = |
| ngx_align(cmcf->variables_hash_bucket_size, ngx_cacheline_size); |
| |
| if (cmcf->ncaptures) { |
| cmcf->ncaptures = (cmcf->ncaptures + 1) * 3; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static void * |
| ngx_stream_core_create_srv_conf(ngx_conf_t *cf) |
| { |
| ngx_stream_core_srv_conf_t *cscf; |
| |
| cscf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_core_srv_conf_t)); |
| if (cscf == NULL) { |
| return NULL; |
| } |
| |
| /* |
| * set by ngx_pcalloc(): |
| * |
| * cscf->handler = NULL; |
| * cscf->error_log = NULL; |
| */ |
| |
| cscf->file_name = cf->conf_file->file.name.data; |
| cscf->line = cf->conf_file->line; |
| cscf->resolver_timeout = NGX_CONF_UNSET_MSEC; |
| cscf->proxy_protocol_timeout = NGX_CONF_UNSET_MSEC; |
| cscf->tcp_nodelay = NGX_CONF_UNSET; |
| cscf->preread_buffer_size = NGX_CONF_UNSET_SIZE; |
| cscf->preread_timeout = NGX_CONF_UNSET_MSEC; |
| |
| return cscf; |
| } |
| |
| |
| static char * |
| ngx_stream_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
| { |
| ngx_stream_core_srv_conf_t *prev = parent; |
| ngx_stream_core_srv_conf_t *conf = child; |
| |
| ngx_conf_merge_msec_value(conf->resolver_timeout, |
| prev->resolver_timeout, 30000); |
| |
| if (conf->resolver == NULL) { |
| |
| if (prev->resolver == NULL) { |
| |
| /* |
| * create dummy resolver in stream {} context |
| * to inherit it in all servers |
| */ |
| |
| prev->resolver = ngx_resolver_create(cf, NULL, 0); |
| if (prev->resolver == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| conf->resolver = prev->resolver; |
| } |
| |
| if (conf->handler == NULL) { |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "no handler for server in %s:%ui", |
| conf->file_name, conf->line); |
| return NGX_CONF_ERROR; |
| } |
| |
| if (conf->error_log == NULL) { |
| if (prev->error_log) { |
| conf->error_log = prev->error_log; |
| } else { |
| conf->error_log = &cf->cycle->new_log; |
| } |
| } |
| |
| ngx_conf_merge_msec_value(conf->proxy_protocol_timeout, |
| prev->proxy_protocol_timeout, 30000); |
| |
| ngx_conf_merge_value(conf->tcp_nodelay, prev->tcp_nodelay, 1); |
| |
| ngx_conf_merge_size_value(conf->preread_buffer_size, |
| prev->preread_buffer_size, 16384); |
| |
| ngx_conf_merge_msec_value(conf->preread_timeout, |
| prev->preread_timeout, 30000); |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_stream_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_stream_core_srv_conf_t *cscf = conf; |
| |
| return ngx_log_set_log(cf, &cscf->error_log); |
| } |
| |
| |
| static char * |
| ngx_stream_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| char *rv; |
| void *mconf; |
| ngx_uint_t m; |
| ngx_conf_t pcf; |
| ngx_stream_module_t *module; |
| ngx_stream_conf_ctx_t *ctx, *stream_ctx; |
| ngx_stream_core_srv_conf_t *cscf, **cscfp; |
| ngx_stream_core_main_conf_t *cmcf; |
| |
| ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t)); |
| if (ctx == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| stream_ctx = cf->ctx; |
| ctx->main_conf = stream_ctx->main_conf; |
| |
| /* the server{}'s srv_conf */ |
| |
| ctx->srv_conf = ngx_pcalloc(cf->pool, |
| sizeof(void *) * ngx_stream_max_module); |
| if (ctx->srv_conf == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| for (m = 0; cf->cycle->modules[m]; m++) { |
| if (cf->cycle->modules[m]->type != NGX_STREAM_MODULE) { |
| continue; |
| } |
| |
| module = cf->cycle->modules[m]->ctx; |
| |
| if (module->create_srv_conf) { |
| mconf = module->create_srv_conf(cf); |
| if (mconf == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ctx->srv_conf[cf->cycle->modules[m]->ctx_index] = mconf; |
| } |
| } |
| |
| /* the server configuration context */ |
| |
| cscf = ctx->srv_conf[ngx_stream_core_module.ctx_index]; |
| cscf->ctx = ctx; |
| |
| cmcf = ctx->main_conf[ngx_stream_core_module.ctx_index]; |
| |
| cscfp = ngx_array_push(&cmcf->servers); |
| if (cscfp == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| *cscfp = cscf; |
| |
| |
| /* parse inside server{} */ |
| |
| pcf = *cf; |
| cf->ctx = ctx; |
| cf->cmd_type = NGX_STREAM_SRV_CONF; |
| |
| rv = ngx_conf_parse(cf, NULL); |
| |
| *cf = pcf; |
| |
| if (rv == NGX_CONF_OK && !cscf->listen) { |
| ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
| "no \"listen\" is defined for server in %s:%ui", |
| cscf->file_name, cscf->line); |
| return NGX_CONF_ERROR; |
| } |
| |
| return rv; |
| } |
| |
| |
| static char * |
| ngx_stream_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_stream_core_srv_conf_t *cscf = conf; |
| |
| ngx_str_t *value; |
| ngx_url_t u; |
| ngx_uint_t i, backlog; |
| ngx_stream_listen_t *ls, *als; |
| ngx_stream_core_main_conf_t *cmcf; |
| |
| cscf->listen = 1; |
| |
| value = cf->args->elts; |
| |
| ngx_memzero(&u, sizeof(ngx_url_t)); |
| |
| u.url = value[1]; |
| u.listen = 1; |
| |
| if (ngx_parse_url(cf->pool, &u) != NGX_OK) { |
| if (u.err) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "%s in \"%V\" of the \"listen\" directive", |
| u.err, &u.url); |
| } |
| |
| return NGX_CONF_ERROR; |
| } |
| |
| cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); |
| |
| ls = ngx_array_push(&cmcf->listen); |
| if (ls == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| ngx_memzero(ls, sizeof(ngx_stream_listen_t)); |
| |
| ngx_memcpy(&ls->sockaddr.sockaddr, &u.sockaddr, u.socklen); |
| |
| ls->socklen = u.socklen; |
| ls->backlog = NGX_LISTEN_BACKLOG; |
| ls->type = SOCK_STREAM; |
| ls->wildcard = u.wildcard; |
| ls->ctx = cf->ctx; |
| |
| #if (NGX_HAVE_INET6) |
| ls->ipv6only = 1; |
| #endif |
| |
| backlog = 0; |
| |
| for (i = 2; i < cf->args->nelts; i++) { |
| |
| #if !(NGX_WIN32) |
| if (ngx_strcmp(value[i].data, "udp") == 0) { |
| ls->type = SOCK_DGRAM; |
| continue; |
| } |
| #endif |
| |
| if (ngx_strcmp(value[i].data, "bind") == 0) { |
| ls->bind = 1; |
| continue; |
| } |
| |
| if (ngx_strncmp(value[i].data, "backlog=", 8) == 0) { |
| ls->backlog = ngx_atoi(value[i].data + 8, value[i].len - 8); |
| ls->bind = 1; |
| |
| if (ls->backlog == NGX_ERROR || ls->backlog == 0) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "invalid backlog \"%V\"", &value[i]); |
| return NGX_CONF_ERROR; |
| } |
| |
| backlog = 1; |
| |
| continue; |
| } |
| |
| if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { |
| #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
| size_t len; |
| u_char buf[NGX_SOCKADDR_STRLEN]; |
| |
| if (ls->sockaddr.sockaddr.sa_family == AF_INET6) { |
| |
| if (ngx_strcmp(&value[i].data[10], "n") == 0) { |
| ls->ipv6only = 1; |
| |
| } else if (ngx_strcmp(&value[i].data[10], "ff") == 0) { |
| ls->ipv6only = 0; |
| |
| } else { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "invalid ipv6only flags \"%s\"", |
| &value[i].data[9]); |
| return NGX_CONF_ERROR; |
| } |
| |
| ls->bind = 1; |
| |
| } else { |
| len = ngx_sock_ntop(&ls->sockaddr.sockaddr, ls->socklen, buf, |
| NGX_SOCKADDR_STRLEN, 1); |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "ipv6only is not supported " |
| "on addr \"%*s\", ignored", len, buf); |
| } |
| |
| continue; |
| #else |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "bind ipv6only is not supported " |
| "on this platform"); |
| return NGX_CONF_ERROR; |
| #endif |
| } |
| |
| if (ngx_strcmp(value[i].data, "reuseport") == 0) { |
| #if (NGX_HAVE_REUSEPORT) |
| ls->reuseport = 1; |
| ls->bind = 1; |
| #else |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "reuseport is not supported " |
| "on this platform, ignored"); |
| #endif |
| continue; |
| } |
| |
| if (ngx_strcmp(value[i].data, "ssl") == 0) { |
| #if (NGX_STREAM_SSL) |
| ls->ssl = 1; |
| continue; |
| #else |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "the \"ssl\" parameter requires " |
| "ngx_stream_ssl_module"); |
| return NGX_CONF_ERROR; |
| #endif |
| } |
| |
| if (ngx_strncmp(value[i].data, "so_keepalive=", 13) == 0) { |
| |
| if (ngx_strcmp(&value[i].data[13], "on") == 0) { |
| ls->so_keepalive = 1; |
| |
| } else if (ngx_strcmp(&value[i].data[13], "off") == 0) { |
| ls->so_keepalive = 2; |
| |
| } else { |
| |
| #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
| u_char *p, *end; |
| ngx_str_t s; |
| |
| end = value[i].data + value[i].len; |
| s.data = value[i].data + 13; |
| |
| p = ngx_strlchr(s.data, end, ':'); |
| if (p == NULL) { |
| p = end; |
| } |
| |
| if (p > s.data) { |
| s.len = p - s.data; |
| |
| ls->tcp_keepidle = ngx_parse_time(&s, 1); |
| if (ls->tcp_keepidle == (time_t) NGX_ERROR) { |
| goto invalid_so_keepalive; |
| } |
| } |
| |
| s.data = (p < end) ? (p + 1) : end; |
| |
| p = ngx_strlchr(s.data, end, ':'); |
| if (p == NULL) { |
| p = end; |
| } |
| |
| if (p > s.data) { |
| s.len = p - s.data; |
| |
| ls->tcp_keepintvl = ngx_parse_time(&s, 1); |
| if (ls->tcp_keepintvl == (time_t) NGX_ERROR) { |
| goto invalid_so_keepalive; |
| } |
| } |
| |
| s.data = (p < end) ? (p + 1) : end; |
| |
| if (s.data < end) { |
| s.len = end - s.data; |
| |
| ls->tcp_keepcnt = ngx_atoi(s.data, s.len); |
| if (ls->tcp_keepcnt == NGX_ERROR) { |
| goto invalid_so_keepalive; |
| } |
| } |
| |
| if (ls->tcp_keepidle == 0 && ls->tcp_keepintvl == 0 |
| && ls->tcp_keepcnt == 0) |
| { |
| goto invalid_so_keepalive; |
| } |
| |
| ls->so_keepalive = 1; |
| |
| #else |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "the \"so_keepalive\" parameter accepts " |
| "only \"on\" or \"off\" on this platform"); |
| return NGX_CONF_ERROR; |
| |
| #endif |
| } |
| |
| ls->bind = 1; |
| |
| continue; |
| |
| #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
| invalid_so_keepalive: |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "invalid so_keepalive value: \"%s\"", |
| &value[i].data[13]); |
| return NGX_CONF_ERROR; |
| #endif |
| } |
| |
| if (ngx_strcmp(value[i].data, "proxy_protocol") == 0) { |
| ls->proxy_protocol = 1; |
| continue; |
| } |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "the invalid \"%V\" parameter", &value[i]); |
| return NGX_CONF_ERROR; |
| } |
| |
| if (ls->type == SOCK_DGRAM) { |
| if (backlog) { |
| return "\"backlog\" parameter is incompatible with \"udp\""; |
| } |
| |
| #if (NGX_STREAM_SSL) |
| if (ls->ssl) { |
| return "\"ssl\" parameter is incompatible with \"udp\""; |
| } |
| #endif |
| |
| if (ls->so_keepalive) { |
| return "\"so_keepalive\" parameter is incompatible with \"udp\""; |
| } |
| |
| if (ls->proxy_protocol) { |
| return "\"proxy_protocol\" parameter is incompatible with \"udp\""; |
| } |
| } |
| |
| als = cmcf->listen.elts; |
| |
| for (i = 0; i < cmcf->listen.nelts - 1; i++) { |
| if (ls->type != als[i].type) { |
| continue; |
| } |
| |
| if (ngx_cmp_sockaddr(&als[i].sockaddr.sockaddr, als[i].socklen, |
| &ls->sockaddr.sockaddr, ls->socklen, 1) |
| != NGX_OK) |
| { |
| continue; |
| } |
| |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "duplicate \"%V\" address and port pair", &u.url); |
| return NGX_CONF_ERROR; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_stream_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_stream_core_srv_conf_t *cscf = conf; |
| |
| ngx_str_t *value; |
| |
| if (cscf->resolver) { |
| return "is duplicate"; |
| } |
| |
| value = cf->args->elts; |
| |
| cscf->resolver = ngx_resolver_create(cf, &value[1], cf->args->nelts - 1); |
| if (cscf->resolver == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| return NGX_CONF_OK; |
| } |
