Mercurial > hg > nginx-quic
view src/core/ngx_log.c @ 5091:d3e256c67d6d
SSL: do not treat SSL handshake as request.
The request object will not be created until SSL handshake is complete.
This simplifies adding another connection handler that does not need
request object right after handshake (e.g., SPDY).
There are also a few more intentional effects:
- the "client_header_buffer_size" directive will be taken from the
server configuration that was negotiated by SNI;
- SSL handshake errors and timeouts are not logged into access log
as bad requests;
- ngx_ssl_create_connection() is not called until the first byte of
ClientHello message was received. This also decreases memory
consumption if plain HTTP request is sent to SSL socket.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 27 Feb 2013 17:21:21 +0000 |
parents | d620f497c50f |
children | d8af1005e886 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> static char *ngx_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_command_t ngx_errlog_commands[] = { {ngx_string("error_log"), NGX_MAIN_CONF|NGX_CONF_1MORE, ngx_error_log, 0, 0, NULL}, ngx_null_command }; static ngx_core_module_t ngx_errlog_module_ctx = { ngx_string("errlog"), NULL, NULL }; ngx_module_t ngx_errlog_module = { NGX_MODULE_V1, &ngx_errlog_module_ctx, /* module context */ ngx_errlog_commands, /* module directives */ NGX_CORE_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_log_t ngx_log; static ngx_open_file_t ngx_log_file; ngx_uint_t ngx_use_stderr = 1; static ngx_str_t err_levels[] = { ngx_null_string, ngx_string("emerg"), ngx_string("alert"), ngx_string("crit"), ngx_string("error"), ngx_string("warn"), ngx_string("notice"), ngx_string("info"), ngx_string("debug") }; static const char *debug_levels[] = { "debug_core", "debug_alloc", "debug_mutex", "debug_event", "debug_http", "debug_mail", "debug_mysql" }; #if (NGX_HAVE_VARIADIC_MACROS) void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...) #else void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, va_list args) #endif { #if (NGX_HAVE_VARIADIC_MACROS) va_list args; #endif u_char *p, *last, *msg; u_char errstr[NGX_MAX_ERROR_STR]; if (log->file->fd == NGX_INVALID_FILE) { return; } last = errstr + NGX_MAX_ERROR_STR; ngx_memcpy(errstr, ngx_cached_err_log_time.data, ngx_cached_err_log_time.len); p = errstr + ngx_cached_err_log_time.len; p = ngx_slprintf(p, last, " [%V] ", &err_levels[level]); /* pid#tid */ p = ngx_slprintf(p, last, "%P#" NGX_TID_T_FMT ": ", ngx_log_pid, ngx_log_tid); if (log->connection) { p = ngx_slprintf(p, last, "*%uA ", log->connection); } msg = p; #if (NGX_HAVE_VARIADIC_MACROS) va_start(args, fmt); p = ngx_vslprintf(p, last, fmt, args); va_end(args); #else p = ngx_vslprintf(p, last, fmt, args); #endif if (err) { p = ngx_log_errno(p, last, err); } if (level != NGX_LOG_DEBUG && log->handler) { p = log->handler(log, p, last - p); } if (p > last - NGX_LINEFEED_SIZE) { p = last - NGX_LINEFEED_SIZE; } ngx_linefeed(p); (void) ngx_write_fd(log->file->fd, errstr, p - errstr); if (!ngx_use_stderr || level > NGX_LOG_WARN || log->file->fd == ngx_stderr) { return; } msg -= (7 + err_levels[level].len + 3); (void) ngx_sprintf(msg, "nginx: [%V] ", &err_levels[level]); (void) ngx_write_console(ngx_stderr, msg, p - msg); } #if !(NGX_HAVE_VARIADIC_MACROS) void ngx_cdecl ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...) { va_list args; if (log->log_level >= level) { va_start(args, fmt); ngx_log_error_core(level, log, err, fmt, args); va_end(args); } } void ngx_cdecl ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...) { va_list args; va_start(args, fmt); ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, args); va_end(args); } #endif void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...) { u_char *p; va_list args; u_char errstr[NGX_MAX_CONF_ERRSTR]; va_start(args, fmt); p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args); va_end(args); ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, err, "%*s", p - errstr, errstr); } void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...) { u_char *p, *last; va_list args; u_char errstr[NGX_MAX_ERROR_STR]; last = errstr + NGX_MAX_ERROR_STR; p = errstr + 7; ngx_memcpy(errstr, "nginx: ", 7); va_start(args, fmt); p = ngx_vslprintf(p, last, fmt, args); va_end(args); if (err) { p = ngx_log_errno(p, last, err); } if (p > last - NGX_LINEFEED_SIZE) { p = last - NGX_LINEFEED_SIZE; } ngx_linefeed(p); (void) ngx_write_console(ngx_stderr, errstr, p - errstr); } u_char * ngx_log_errno(u_char *buf, u_char *last, ngx_err_t err) { if (buf > last - 50) { /* leave a space for an error code */ buf = last - 50; *buf++ = '.'; *buf++ = '.'; *buf++ = '.'; } #if (NGX_WIN32) buf = ngx_slprintf(buf, last, ((unsigned) err < 0x80000000) ? " (%d: " : " (%Xd: ", err); #else buf = ngx_slprintf(buf, last, " (%d: ", err); #endif buf = ngx_strerror(err, buf, last - buf); if (buf < last) { *buf++ = ')'; } return buf; } ngx_log_t * ngx_log_init(u_char *prefix) { u_char *p, *name; size_t nlen, plen; ngx_log.file = &ngx_log_file; ngx_log.log_level = NGX_LOG_NOTICE; name = (u_char *) NGX_ERROR_LOG_PATH; /* * we use ngx_strlen() here since BCC warns about * condition is always false and unreachable code */ nlen = ngx_strlen(name); if (nlen == 0) { ngx_log_file.fd = ngx_stderr; return &ngx_log; } p = NULL; #if (NGX_WIN32) if (name[1] != ':') { #else if (name[0] != '/') { #endif if (prefix) { plen = ngx_strlen(prefix); } else { #ifdef NGX_PREFIX prefix = (u_char *) NGX_PREFIX; plen = ngx_strlen(prefix); #else plen = 0; #endif } if (plen) { name = malloc(plen + nlen + 2); if (name == NULL) { return NULL; } p = ngx_cpymem(name, prefix, plen); if (!ngx_path_separator(*(p - 1))) { *p++ = '/'; } ngx_cpystrn(p, (u_char *) NGX_ERROR_LOG_PATH, nlen + 1); p = name; } } ngx_log_file.fd = ngx_open_file(name, NGX_FILE_APPEND, NGX_FILE_CREATE_OR_OPEN, NGX_FILE_DEFAULT_ACCESS); if (ngx_log_file.fd == NGX_INVALID_FILE) { ngx_log_stderr(ngx_errno, "[alert] could not open error log file: " ngx_open_file_n " \"%s\" failed", name); #if (NGX_WIN32) ngx_event_log(ngx_errno, "could not open error log file: " ngx_open_file_n " \"%s\" failed", name); #endif ngx_log_file.fd = ngx_stderr; } if (p) { ngx_free(p); } return &ngx_log; } ngx_log_t * ngx_log_create(ngx_cycle_t *cycle, ngx_str_t *name) { ngx_log_t *log; log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t)); if (log == NULL) { return NULL; } log->file = ngx_conf_open_file(cycle, name); if (log->file == NULL) { return NULL; } return log; } char * ngx_log_set_levels(ngx_conf_t *cf, ngx_log_t *log) { ngx_uint_t i, n, d, found; ngx_str_t *value; value = cf->args->elts; for (i = 2; i < cf->args->nelts; i++) { found = 0; for (n = 1; n <= NGX_LOG_DEBUG; n++) { if (ngx_strcmp(value[i].data, err_levels[n].data) == 0) { if (log->log_level != 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "duplicate log level \"%V\"", &value[i]); return NGX_CONF_ERROR; } log->log_level = n; found = 1; break; } } for (n = 0, d = NGX_LOG_DEBUG_FIRST; d <= NGX_LOG_DEBUG_LAST; d <<= 1) { if (ngx_strcmp(value[i].data, debug_levels[n++]) == 0) { if (log->log_level & ~NGX_LOG_DEBUG_ALL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%V\"", &value[i]); return NGX_CONF_ERROR; } log->log_level |= d; found = 1; break; } } if (!found) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%V\"", &value[i]); return NGX_CONF_ERROR; } } if (log->log_level == NGX_LOG_DEBUG) { log->log_level = NGX_LOG_DEBUG_ALL; } return NGX_CONF_OK; } static char * ngx_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_str_t *value, name; if (cf->cycle->new_log.file) { return "is duplicate"; } value = cf->args->elts; if (ngx_strcmp(value[1].data, "stderr") == 0) { ngx_str_null(&name); } else { name = value[1]; } cf->cycle->new_log.file = ngx_conf_open_file(cf->cycle, &name); if (cf->cycle->new_log.file == NULL) { return NULL; } if (cf->args->nelts == 2) { cf->cycle->new_log.log_level = NGX_LOG_ERR; return NGX_CONF_OK; } cf->cycle->new_log.log_level = 0; return ngx_log_set_levels(cf, &cf->cycle->new_log); }