Mercurial > hg > nginx-quic
view src/mail/ngx_mail_core_module.c @ 8099:b4ef79ef1c23 quic
QUIC: refined the "c->quic->initialized" flag usage.
The flag is tied to the initial secret creation. The presence of c->quic
pointer is sufficient to enable execution of ngx_quic_close_quic().
The ngx_quic_new_connection() function now returns the allocated quic
connection object and the c->quic pointer is set by the caller.
If an early error occurs before secrets initialization (i.e. in cases
of invalid retry token or nginx exiting), it is still possible to
generate an error response by trying to initialize secrets directly
in the ngx_quic_send_cc() function.
Before the change such early errors failed to send proper connection close
message and logged an error.
An auxilliary ngx_quic_init_secrets() function is introduced to avoid
verbose call to ngx_quic_set_initial_secret() requiring local variable.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Wed, 30 Sep 2020 21:27:52 +0300 |
parents | 4f9b72a229c1 |
children | 12ea1de7d87c |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <ngx_mail.h> static void *ngx_mail_core_create_main_conf(ngx_conf_t *cf); static void *ngx_mail_core_create_srv_conf(ngx_conf_t *cf); static char *ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child); static char *ngx_mail_core_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_mail_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_command_t ngx_mail_core_commands[] = { { ngx_string("server"), NGX_MAIL_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, ngx_mail_core_server, 0, 0, NULL }, { ngx_string("listen"), NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, ngx_mail_core_listen, NGX_MAIL_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("protocol"), NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, ngx_mail_core_protocol, NGX_MAIL_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("timeout"), NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_MAIL_SRV_CONF_OFFSET, offsetof(ngx_mail_core_srv_conf_t, timeout), NULL }, { ngx_string("server_name"), NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_MAIL_SRV_CONF_OFFSET, offsetof(ngx_mail_core_srv_conf_t, server_name), NULL }, { ngx_string("error_log"), NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, ngx_mail_core_error_log, NGX_MAIL_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("resolver"), NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, ngx_mail_core_resolver, NGX_MAIL_SRV_CONF_OFFSET, 0, NULL }, { ngx_string("resolver_timeout"), NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_MAIL_SRV_CONF_OFFSET, offsetof(ngx_mail_core_srv_conf_t, resolver_timeout), NULL }, ngx_null_command }; static ngx_mail_module_t ngx_mail_core_module_ctx = { NULL, /* protocol */ ngx_mail_core_create_main_conf, /* create main configuration */ NULL, /* init main configuration */ ngx_mail_core_create_srv_conf, /* create server configuration */ ngx_mail_core_merge_srv_conf /* merge server configuration */ }; ngx_module_t ngx_mail_core_module = { NGX_MODULE_V1, &ngx_mail_core_module_ctx, /* module context */ ngx_mail_core_commands, /* module directives */ NGX_MAIL_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 void * ngx_mail_core_create_main_conf(ngx_conf_t *cf) { ngx_mail_core_main_conf_t *cmcf; cmcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_main_conf_t)); if (cmcf == NULL) { return NULL; } if (ngx_array_init(&cmcf->servers, cf->pool, 4, sizeof(ngx_mail_core_srv_conf_t *)) != NGX_OK) { return NULL; } if (ngx_array_init(&cmcf->listen, cf->pool, 4, sizeof(ngx_mail_listen_t)) != NGX_OK) { return NULL; } return cmcf; } static void * ngx_mail_core_create_srv_conf(ngx_conf_t *cf) { ngx_mail_core_srv_conf_t *cscf; cscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_core_srv_conf_t)); if (cscf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * cscf->protocol = NULL; * cscf->error_log = NULL; */ cscf->timeout = NGX_CONF_UNSET_MSEC; cscf->resolver_timeout = NGX_CONF_UNSET_MSEC; cscf->resolver = NGX_CONF_UNSET_PTR; cscf->file_name = cf->conf_file->file.name.data; cscf->line = cf->conf_file->line; return cscf; } static char * ngx_mail_core_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_mail_core_srv_conf_t *prev = parent; ngx_mail_core_srv_conf_t *conf = child; ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000); ngx_conf_merge_msec_value(conf->resolver_timeout, prev->resolver_timeout, 30000); ngx_conf_merge_str_value(conf->server_name, prev->server_name, ""); if (conf->server_name.len == 0) { conf->server_name = cf->cycle->hostname; } if (conf->protocol == NULL) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "unknown mail protocol 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_ptr_value(conf->resolver, prev->resolver, NULL); return NGX_CONF_OK; } static char * ngx_mail_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_mail_module_t *module; ngx_mail_conf_ctx_t *ctx, *mail_ctx; ngx_mail_core_srv_conf_t *cscf, **cscfp; ngx_mail_core_main_conf_t *cmcf; ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); if (ctx == NULL) { return NGX_CONF_ERROR; } mail_ctx = cf->ctx; ctx->main_conf = mail_ctx->main_conf; /* the server{}'s srv_conf */ ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_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_MAIL_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_mail_core_module.ctx_index]; cscf->ctx = ctx; cmcf = ctx->main_conf[ngx_mail_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_MAIL_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_mail_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_mail_core_srv_conf_t *cscf = conf; ngx_str_t *value, size; ngx_url_t u; ngx_uint_t i, n, m; ngx_mail_listen_t *ls, *als; ngx_mail_module_t *module; ngx_mail_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_mail_conf_get_module_main_conf(cf, ngx_mail_core_module); ls = ngx_array_push_n(&cmcf->listen, u.naddrs); if (ls == NULL) { return NGX_CONF_ERROR; } ngx_memzero(ls, sizeof(ngx_mail_listen_t)); ls->backlog = NGX_LISTEN_BACKLOG; ls->rcvbuf = -1; ls->sndbuf = -1; ls->ctx = cf->ctx; #if (NGX_HAVE_INET6) ls->ipv6only = 1; #endif if (cscf->protocol == NULL) { for (m = 0; cf->cycle->modules[m]; m++) { if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { continue; } module = cf->cycle->modules[m]->ctx; if (module->protocol == NULL) { continue; } for (i = 0; module->protocol->port[i]; i++) { if (module->protocol->port[i] == u.port) { cscf->protocol = module->protocol; break; } } } } for (i = 2; i < cf->args->nelts; i++) { 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; } continue; } if (ngx_strncmp(value[i].data, "rcvbuf=", 7) == 0) { size.len = value[i].len - 7; size.data = value[i].data + 7; ls->rcvbuf = ngx_parse_size(&size); ls->bind = 1; if (ls->rcvbuf == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid rcvbuf \"%V\"", &value[i]); return NGX_CONF_ERROR; } continue; } if (ngx_strncmp(value[i].data, "sndbuf=", 7) == 0) { size.len = value[i].len - 7; size.data = value[i].data + 7; ls->sndbuf = ngx_parse_size(&size); ls->bind = 1; if (ls->sndbuf == NGX_ERROR) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid sndbuf \"%V\"", &value[i]); return NGX_CONF_ERROR; } continue; } if (ngx_strncmp(value[i].data, "ipv6only=o", 10) == 0) { #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) 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; 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, "ssl") == 0) { #if (NGX_MAIL_SSL) ngx_mail_ssl_conf_t *sslcf; sslcf = ngx_mail_conf_get_module_srv_conf(cf, ngx_mail_ssl_module); sslcf->listen = 1; sslcf->file = cf->conf_file->file.name.data; sslcf->line = cf->conf_file->line; ls->ssl = 1; continue; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the \"ssl\" parameter requires " "ngx_mail_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 } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "the invalid \"%V\" parameter", &value[i]); return NGX_CONF_ERROR; } als = cmcf->listen.elts; for (n = 0; n < u.naddrs; n++) { ls[n] = ls[0]; ls[n].sockaddr = u.addrs[n].sockaddr; ls[n].socklen = u.addrs[n].socklen; ls[n].addr_text = u.addrs[n].name; ls[n].wildcard = ngx_inet_wildcard(ls[n].sockaddr); for (i = 0; i < cmcf->listen.nelts - u.naddrs + n; i++) { if (ngx_cmp_sockaddr(als[i].sockaddr, als[i].socklen, ls[n].sockaddr, ls[n].socklen, 1) != NGX_OK) { continue; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "duplicate \"%V\" address and port pair", &ls[n].addr_text); return NGX_CONF_ERROR; } } return NGX_CONF_OK; } static char * ngx_mail_core_protocol(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_mail_core_srv_conf_t *cscf = conf; ngx_str_t *value; ngx_uint_t m; ngx_mail_module_t *module; value = cf->args->elts; for (m = 0; cf->cycle->modules[m]; m++) { if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { continue; } module = cf->cycle->modules[m]->ctx; if (module->protocol && ngx_strcmp(module->protocol->name.data, value[1].data) == 0) { cscf->protocol = module->protocol; return NGX_CONF_OK; } } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unknown protocol \"%V\"", &value[1]); return NGX_CONF_ERROR; } static char * ngx_mail_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_mail_core_srv_conf_t *cscf = conf; return ngx_log_set_log(cf, &cscf->error_log); } static char * ngx_mail_core_resolver(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_mail_core_srv_conf_t *cscf = conf; ngx_str_t *value; value = cf->args->elts; if (cscf->resolver != NGX_CONF_UNSET_PTR) { return "is duplicate"; } if (ngx_strcmp(value[1].data, "off") == 0) { cscf->resolver = NULL; return NGX_CONF_OK; } cscf->resolver = ngx_resolver_create(cf, &value[1], cf->args->nelts - 1); if (cscf->resolver == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } char * ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *c, *value; ngx_uint_t i; ngx_array_t *a; a = (ngx_array_t *) (p + cmd->offset); value = cf->args->elts; for (i = 1; i < cf->args->nelts; i++) { c = ngx_array_push(a); if (c == NULL) { return NGX_CONF_ERROR; } *c = value[i]; } return NGX_CONF_OK; }