view src/core/ngx_core.h @ 7401:a7ff19afbb14

Negative size buffers detection. In the past, there were several security issues which resulted in worker process memory disclosure due to buffers with negative size. It looks reasonable to check for such buffers in various places, much like we already check for zero size buffers. While here, removed "#if 1 / #endif" around zero size buffer checks. It looks highly unlikely that we'll disable these checks anytime soon.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 26 Nov 2018 18:29:56 +0300
parents d27aa9060c95
children 06b01840bd42
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_CORE_H_INCLUDED_
#define _NGX_CORE_H_INCLUDED_


#include <ngx_config.h>


typedef struct ngx_module_s          ngx_module_t;
typedef struct ngx_conf_s            ngx_conf_t;
typedef struct ngx_cycle_s           ngx_cycle_t;
typedef struct ngx_pool_s            ngx_pool_t;
typedef struct ngx_chain_s           ngx_chain_t;
typedef struct ngx_log_s             ngx_log_t;
typedef struct ngx_open_file_s       ngx_open_file_t;
typedef struct ngx_command_s         ngx_command_t;
typedef struct ngx_file_s            ngx_file_t;
typedef struct ngx_event_s           ngx_event_t;
typedef struct ngx_event_aio_s       ngx_event_aio_t;
typedef struct ngx_connection_s      ngx_connection_t;
typedef struct ngx_thread_task_s     ngx_thread_task_t;
typedef struct ngx_ssl_s             ngx_ssl_t;
typedef struct ngx_ssl_connection_s  ngx_ssl_connection_t;
typedef struct ngx_udp_connection_s  ngx_udp_connection_t;

typedef void (*ngx_event_handler_pt)(ngx_event_t *ev);
typedef void (*ngx_connection_handler_pt)(ngx_connection_t *c);


#define  NGX_OK          0
#define  NGX_ERROR      -1
#define  NGX_AGAIN      -2
#define  NGX_BUSY       -3
#define  NGX_DONE       -4
#define  NGX_DECLINED   -5
#define  NGX_ABORT      -6


#include <ngx_errno.h>
#include <ngx_atomic.h>
#include <ngx_thread.h>
#include <ngx_rbtree.h>
#include <ngx_time.h>
#include <ngx_socket.h>
#include <ngx_string.h>
#include <ngx_files.h>
#include <ngx_shmem.h>
#include <ngx_process.h>
#include <ngx_user.h>
#include <ngx_dlopen.h>
#include <ngx_parse.h>
#include <ngx_parse_time.h>
#include <ngx_log.h>
#include <ngx_alloc.h>
#include <ngx_palloc.h>
#include <ngx_buf.h>
#include <ngx_queue.h>
#include <ngx_array.h>
#include <ngx_list.h>
#include <ngx_hash.h>
#include <ngx_file.h>
#include <ngx_crc.h>
#include <ngx_crc32.h>
#include <ngx_murmurhash.h>
#if (NGX_PCRE)
#include <ngx_regex.h>
#endif
#include <ngx_radix_tree.h>
#include <ngx_times.h>
#include <ngx_rwlock.h>
#include <ngx_shmtx.h>
#include <ngx_slab.h>
#include <ngx_inet.h>
#include <ngx_cycle.h>
#include <ngx_resolver.h>
#if (NGX_OPENSSL)
#include <ngx_event_openssl.h>
#endif
#include <ngx_process_cycle.h>
#include <ngx_conf_file.h>
#include <ngx_module.h>
#include <ngx_open_file_cache.h>
#include <ngx_os.h>
#include <ngx_connection.h>
#include <ngx_syslog.h>
#include <ngx_proxy_protocol.h>


#define LF     (u_char) '\n'
#define CR     (u_char) '\r'
#define CRLF   "\r\n"


#define ngx_abs(value)       (((value) >= 0) ? (value) : - (value))
#define ngx_max(val1, val2)  ((val1 < val2) ? (val2) : (val1))
#define ngx_min(val1, val2)  ((val1 > val2) ? (val2) : (val1))

void ngx_cpuinfo(void);

#if (NGX_HAVE_OPENAT)
#define NGX_DISABLE_SYMLINKS_OFF        0
#define NGX_DISABLE_SYMLINKS_ON         1
#define NGX_DISABLE_SYMLINKS_NOTOWNER   2
#endif

#endif /* _NGX_CORE_H_INCLUDED_ */