Mercurial > hg > nginx-quic
view src/stream/ngx_stream_ssl_module.c @ 6876:a5d1b1383dea
Upstream: fixed cache corruption and socket leaks with aio_write.
The ngx_event_pipe() function wasn't called on write events with
wev->delayed set. As a result, threaded writing results weren't
properly collected in ngx_event_pipe_write_to_downstream() when a
write event was triggered for a completed write.
Further, this wasn't detected, as p->aio was reset by a thread completion
handler, and results were later collected in ngx_event_pipe_read_upstream()
instead of scheduling a new write of additional data. If this happened
on the last reading from an upstream, last part of the response was never
written to the cache file.
Similar problems might also happen in case of timeouts when writing to
client, as this also results in ngx_event_pipe() not being called on write
events. In this scenario socket leaks were observed.
Fix is to check if p->writing is set in ngx_event_pipe_read_upstream(), and
therefore collect results of previous write operations in case of read events
as well, similar to how we do so in ngx_event_pipe_write_downstream().
This is enough to fix the wev->delayed case. Additionally, we now call
ngx_event_pipe() from ngx_http_upstream_process_request() if there are
uncollected write operations (p->writing and !p->aio). This also fixes
the wev->timedout case.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 20 Jan 2017 21:14:19 +0300 |
parents | 1818acd8442f |
children | 08dc60979133 |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_stream.h> typedef ngx_int_t (*ngx_ssl_variable_handler_pt)(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s); #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" #define NGX_DEFAULT_ECDH_CURVE "auto" static ngx_int_t ngx_stream_ssl_handler(ngx_stream_session_t *s); static ngx_int_t ngx_stream_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c); static void ngx_stream_ssl_handshake_handler(ngx_connection_t *c); static ngx_int_t ngx_stream_ssl_static_variable(ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_stream_ssl_variable(ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_stream_ssl_add_variables(ngx_conf_t *cf); static void *ngx_stream_ssl_create_conf(ngx_conf_t *cf); static char *ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child); static char *ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_int_t ngx_stream_ssl_init(ngx_conf_t *cf); static ngx_conf_bitmask_t ngx_stream_ssl_protocols[] = { { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, { ngx_null_string, 0 } }; static ngx_conf_enum_t ngx_stream_ssl_verify[] = { { ngx_string("off"), 0 }, { ngx_string("on"), 1 }, { ngx_string("optional"), 2 }, { ngx_string("optional_no_ca"), 3 }, { ngx_null_string, 0 } }; static ngx_command_t ngx_stream_ssl_commands[] = { { ngx_string("ssl_handshake_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_ssl_conf_t, handshake_timeout), NULL }, { ngx_string("ssl_certificate"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, certificates), NULL }, { ngx_string("ssl_certificate_key"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, certificate_keys), NULL }, { ngx_string("ssl_password_file"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_stream_ssl_password_file, NGX_STREAM_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("ssl_dhparam"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, dhparam), NULL }, { ngx_string("ssl_ecdh_curve"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, ecdh_curve), NULL }, { ngx_string("ssl_protocols"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, protocols), &ngx_stream_ssl_protocols }, { ngx_string("ssl_ciphers"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, ciphers), NULL }, { ngx_string("ssl_verify_client"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_enum_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, verify), &ngx_stream_ssl_verify }, { ngx_string("ssl_verify_depth"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, verify_depth), NULL }, { ngx_string("ssl_client_certificate"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, client_certificate), NULL }, { ngx_string("ssl_trusted_certificate"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, trusted_certificate), NULL }, { ngx_string("ssl_prefer_server_ciphers"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, prefer_server_ciphers), NULL }, { ngx_string("ssl_session_cache"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE12, ngx_stream_ssl_session_cache, NGX_STREAM_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("ssl_session_tickets"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, session_tickets), NULL }, { ngx_string("ssl_session_ticket_key"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, session_ticket_keys), NULL }, { ngx_string("ssl_session_timeout"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_sec_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, session_timeout), NULL }, { ngx_string("ssl_crl"), NGX_STREAM_MAIN_CONF|NGX_STREAM_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_STREAM_SRV_CONF_OFFSET, offsetof(ngx_stream_ssl_conf_t, crl), NULL }, ngx_null_command }; static ngx_stream_module_t ngx_stream_ssl_module_ctx = { ngx_stream_ssl_add_variables, /* preconfiguration */ ngx_stream_ssl_init, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ ngx_stream_ssl_create_conf, /* create server configuration */ ngx_stream_ssl_merge_conf /* merge server configuration */ }; ngx_module_t ngx_stream_ssl_module = { NGX_MODULE_V1, &ngx_stream_ssl_module_ctx, /* module context */ ngx_stream_ssl_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 }; static ngx_stream_variable_t ngx_stream_ssl_vars[] = { { ngx_string("ssl_protocol"), NULL, ngx_stream_ssl_static_variable, (uintptr_t) ngx_ssl_get_protocol, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_cipher"), NULL, ngx_stream_ssl_static_variable, (uintptr_t) ngx_ssl_get_cipher_name, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_ciphers"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_ciphers, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_curves"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_curves, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_session_id"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_session_id, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_session_reused"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_session_reused, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_server_name"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_server_name, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_cert"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_certificate, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_raw_cert"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_raw_certificate, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_s_dn"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_subject_dn, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_i_dn"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_issuer_dn, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_serial"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_serial_number, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_fingerprint"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_fingerprint, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_verify"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_client_verify, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_v_start"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_client_v_start, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_v_end"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_client_v_end, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_string("ssl_client_v_remain"), NULL, ngx_stream_ssl_variable, (uintptr_t) ngx_ssl_get_client_v_remain, NGX_STREAM_VAR_CHANGEABLE, 0 }, { ngx_null_string, NULL, NULL, 0, 0, 0 } }; static ngx_str_t ngx_stream_ssl_sess_id_ctx = ngx_string("STREAM"); static ngx_int_t ngx_stream_ssl_handler(ngx_stream_session_t *s) { long rc; X509 *cert; ngx_int_t rv; ngx_connection_t *c; ngx_stream_ssl_conf_t *sslcf; if (!s->ssl) { return NGX_OK; } c = s->connection; sslcf = ngx_stream_get_module_srv_conf(s, ngx_stream_ssl_module); if (c->ssl == NULL) { 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"); return NGX_ERROR; } rv = ngx_stream_ssl_init_connection(&sslcf->ssl, c); if (rv != NGX_OK) { return rv; } } if (sslcf->verify) { rc = SSL_get_verify_result(c->ssl->connection); if (rc != X509_V_OK && (sslcf->verify != 3 || !ngx_ssl_verify_error_optional(rc))) { ngx_log_error(NGX_LOG_INFO, c->log, 0, "client SSL certificate verify error: (%l:%s)", rc, X509_verify_cert_error_string(rc)); ngx_ssl_remove_cached_session(sslcf->ssl.ctx, (SSL_get0_session(c->ssl->connection))); return NGX_ERROR; } if (sslcf->verify == 1) { cert = SSL_get_peer_certificate(c->ssl->connection); if (cert == NULL) { ngx_log_error(NGX_LOG_INFO, c->log, 0, "client sent no required SSL certificate"); ngx_ssl_remove_cached_session(sslcf->ssl.ctx, (SSL_get0_session(c->ssl->connection))); return NGX_ERROR; } X509_free(cert); } } return NGX_OK; } static ngx_int_t ngx_stream_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) { ngx_int_t rc; ngx_stream_session_t *s; ngx_stream_ssl_conf_t *sslcf; s = c->data; if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { return NGX_ERROR; } rc = ngx_ssl_handshake(c); if (rc == NGX_ERROR) { return NGX_ERROR; } if (rc == NGX_AGAIN) { sslcf = ngx_stream_get_module_srv_conf(s, ngx_stream_ssl_module); ngx_add_timer(c->read, sslcf->handshake_timeout); c->ssl->handler = ngx_stream_ssl_handshake_handler; return NGX_AGAIN; } /* rc == NGX_OK */ return NGX_OK; } static void ngx_stream_ssl_handshake_handler(ngx_connection_t *c) { ngx_stream_session_t *s; s = c->data; if (!c->ssl->handshaked) { ngx_stream_finalize_session(s, NGX_STREAM_INTERNAL_SERVER_ERROR); return; } if (c->read->timer_set) { ngx_del_timer(c->read); } ngx_stream_core_run_phases(s); } static ngx_int_t ngx_stream_ssl_static_variable(ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data) { ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; size_t len; ngx_str_t str; if (s->connection->ssl) { (void) handler(s->connection, NULL, &str); v->data = str.data; for (len = 0; v->data[len]; len++) { /* void */ } v->len = len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; return NGX_OK; } v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_stream_ssl_variable(ngx_stream_session_t *s, ngx_stream_variable_value_t *v, uintptr_t data) { ngx_ssl_variable_handler_pt handler = (ngx_ssl_variable_handler_pt) data; ngx_str_t str; if (s->connection->ssl) { if (handler(s->connection, s->connection->pool, &str) != NGX_OK) { return NGX_ERROR; } v->len = str.len; v->data = str.data; if (v->len) { v->valid = 1; v->no_cacheable = 0; v->not_found = 0; return NGX_OK; } } v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_stream_ssl_add_variables(ngx_conf_t *cf) { ngx_stream_variable_t *var, *v; for (v = ngx_stream_ssl_vars; v->name.len; v++) { var = ngx_stream_add_variable(cf, &v->name, v->flags); if (var == NULL) { return NGX_ERROR; } var->get_handler = v->get_handler; var->data = v->data; } return NGX_OK; } static void * ngx_stream_ssl_create_conf(ngx_conf_t *cf) { ngx_stream_ssl_conf_t *scf; scf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_ssl_conf_t)); if (scf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * scf->protocols = 0; * scf->dhparam = { 0, NULL }; * scf->ecdh_curve = { 0, NULL }; * scf->client_certificate = { 0, NULL }; * scf->trusted_certificate = { 0, NULL }; * scf->crl = { 0, NULL }; * scf->ciphers = { 0, NULL }; * scf->shm_zone = NULL; */ scf->handshake_timeout = NGX_CONF_UNSET_MSEC; scf->certificates = NGX_CONF_UNSET_PTR; scf->certificate_keys = NGX_CONF_UNSET_PTR; scf->passwords = NGX_CONF_UNSET_PTR; scf->prefer_server_ciphers = NGX_CONF_UNSET; scf->verify = NGX_CONF_UNSET_UINT; scf->verify_depth = NGX_CONF_UNSET_UINT; scf->builtin_session_cache = NGX_CONF_UNSET; scf->session_timeout = NGX_CONF_UNSET; scf->session_tickets = NGX_CONF_UNSET; scf->session_ticket_keys = NGX_CONF_UNSET_PTR; return scf; } static char * ngx_stream_ssl_merge_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_stream_ssl_conf_t *prev = parent; ngx_stream_ssl_conf_t *conf = child; ngx_pool_cleanup_t *cln; ngx_conf_merge_msec_value(conf->handshake_timeout, prev->handshake_timeout, 60000); ngx_conf_merge_value(conf->session_timeout, prev->session_timeout, 300); ngx_conf_merge_value(conf->prefer_server_ciphers, prev->prefer_server_ciphers, 0); ngx_conf_merge_bitmask_value(conf->protocols, prev->protocols, (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); ngx_conf_merge_uint_value(conf->verify, prev->verify, 0); ngx_conf_merge_uint_value(conf->verify_depth, prev->verify_depth, 1); ngx_conf_merge_ptr_value(conf->certificates, prev->certificates, NULL); ngx_conf_merge_ptr_value(conf->certificate_keys, prev->certificate_keys, NULL); ngx_conf_merge_ptr_value(conf->passwords, prev->passwords, NULL); ngx_conf_merge_str_value(conf->dhparam, prev->dhparam, ""); ngx_conf_merge_str_value(conf->client_certificate, prev->client_certificate, ""); ngx_conf_merge_str_value(conf->trusted_certificate, prev->trusted_certificate, ""); ngx_conf_merge_str_value(conf->crl, prev->crl, ""); ngx_conf_merge_str_value(conf->ecdh_curve, prev->ecdh_curve, NGX_DEFAULT_ECDH_CURVE); ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, NGX_DEFAULT_CIPHERS); conf->ssl.log = cf->log; if (conf->certificates == NULL) { return NGX_CONF_OK; } if (conf->certificate_keys == NULL || conf->certificate_keys->nelts < conf->certificates->nelts) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "no \"ssl_certificate_key\" is defined " "for certificate \"%V\"", ((ngx_str_t *) conf->certificates->elts) + conf->certificates->nelts - 1); return NGX_CONF_ERROR; } if (ngx_ssl_create(&conf->ssl, conf->protocols, NULL) != NGX_OK) { return NGX_CONF_ERROR; } cln = ngx_pool_cleanup_add(cf->pool, 0); if (cln == NULL) { return NGX_CONF_ERROR; } cln->handler = ngx_ssl_cleanup_ctx; cln->data = &conf->ssl; if (ngx_ssl_certificates(cf, &conf->ssl, conf->certificates, conf->certificate_keys, conf->passwords) != NGX_OK) { return NGX_CONF_ERROR; } if (ngx_ssl_ciphers(cf, &conf->ssl, &conf->ciphers, conf->prefer_server_ciphers) != NGX_OK) { return NGX_CONF_ERROR; } if (conf->verify) { if (conf->client_certificate.len == 0 && conf->verify != 3) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "no ssl_client_certificate for ssl_client_verify"); return NGX_CONF_ERROR; } if (ngx_ssl_client_certificate(cf, &conf->ssl, &conf->client_certificate, conf->verify_depth) != NGX_OK) { return NGX_CONF_ERROR; } if (ngx_ssl_trusted_certificate(cf, &conf->ssl, &conf->trusted_certificate, conf->verify_depth) != NGX_OK) { return NGX_CONF_ERROR; } if (ngx_ssl_crl(cf, &conf->ssl, &conf->crl) != NGX_OK) { return NGX_CONF_ERROR; } } if (ngx_ssl_dhparam(cf, &conf->ssl, &conf->dhparam) != NGX_OK) { return NGX_CONF_ERROR; } if (ngx_ssl_ecdh_curve(cf, &conf->ssl, &conf->ecdh_curve) != NGX_OK) { return NGX_CONF_ERROR; } ngx_conf_merge_value(conf->builtin_session_cache, prev->builtin_session_cache, NGX_SSL_NONE_SCACHE); if (conf->shm_zone == NULL) { conf->shm_zone = prev->shm_zone; } if (ngx_ssl_session_cache(&conf->ssl, &ngx_stream_ssl_sess_id_ctx, conf->builtin_session_cache, conf->shm_zone, conf->session_timeout) != NGX_OK) { return NGX_CONF_ERROR; } ngx_conf_merge_value(conf->session_tickets, prev->session_tickets, 1); #ifdef SSL_OP_NO_TICKET if (!conf->session_tickets) { SSL_CTX_set_options(conf->ssl.ctx, SSL_OP_NO_TICKET); } #endif ngx_conf_merge_ptr_value(conf->session_ticket_keys, prev->session_ticket_keys, NULL); if (ngx_ssl_session_ticket_keys(cf, &conf->ssl, conf->session_ticket_keys) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static char * ngx_stream_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_stream_ssl_conf_t *scf = conf; ngx_str_t *value; if (scf->passwords != NGX_CONF_UNSET_PTR) { return "is duplicate"; } value = cf->args->elts; scf->passwords = ngx_ssl_read_password_file(cf, &value[1]); if (scf->passwords == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static char * ngx_stream_ssl_session_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_stream_ssl_conf_t *scf = conf; size_t len; ngx_str_t *value, name, size; ngx_int_t n; ngx_uint_t i, j; value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { if (ngx_strcmp(value[i].data, "off") == 0) { scf->builtin_session_cache = NGX_SSL_NO_SCACHE; continue; } if (ngx_strcmp(value[i].data, "none") == 0) { scf->builtin_session_cache = NGX_SSL_NONE_SCACHE; continue; } if (ngx_strcmp(value[i].data, "builtin") == 0) { scf->builtin_session_cache = NGX_SSL_DFLT_BUILTIN_SCACHE; continue; } if (value[i].len > sizeof("builtin:") - 1 && ngx_strncmp(value[i].data, "builtin:", sizeof("builtin:") - 1) == 0) { n = ngx_atoi(value[i].data + sizeof("builtin:") - 1, value[i].len - (sizeof("builtin:") - 1)); if (n == NGX_ERROR) { goto invalid; } scf->builtin_session_cache = n; continue; } if (value[i].len > sizeof("shared:") - 1 && ngx_strncmp(value[i].data, "shared:", sizeof("shared:") - 1) == 0) { len = 0; for (j = sizeof("shared:") - 1; j < value[i].len; j++) { if (value[i].data[j] == ':') { break; } len++; } if (len == 0) { goto invalid; } name.len = len; name.data = value[i].data + sizeof("shared:") - 1; size.len = value[i].len - j - 1; size.data = name.data + len + 1; n = ngx_parse_size(&size); if (n == NGX_ERROR) { goto invalid; } if (n < (ngx_int_t) (8 * ngx_pagesize)) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "session cache \"%V\" is too small", &value[i]); return NGX_CONF_ERROR; } scf->shm_zone = ngx_shared_memory_add(cf, &name, n, &ngx_stream_ssl_module); if (scf->shm_zone == NULL) { return NGX_CONF_ERROR; } scf->shm_zone->init = ngx_ssl_session_cache_init; continue; } goto invalid; } if (scf->shm_zone && scf->builtin_session_cache == NGX_CONF_UNSET) { scf->builtin_session_cache = NGX_SSL_NO_BUILTIN_SCACHE; } return NGX_CONF_OK; invalid: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid session cache \"%V\"", &value[i]); return NGX_CONF_ERROR; } static ngx_int_t ngx_stream_ssl_init(ngx_conf_t *cf) { ngx_stream_handler_pt *h; ngx_stream_core_main_conf_t *cmcf; cmcf = ngx_stream_conf_get_module_main_conf(cf, ngx_stream_core_module); h = ngx_array_push(&cmcf->phases[NGX_STREAM_SSL_PHASE].handlers); if (h == NULL) { return NGX_ERROR; } *h = ngx_stream_ssl_handler; return NGX_OK; }