nghttp2/src/shrpx_config.h

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/*
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* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2012 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SHRPX_CONFIG_H
#define SHRPX_CONFIG_H
#include "shrpx.h"
#include <stdint.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <cstdio>
#include <vector>
#include <memory>
#include <atomic>
#include <event.h>
#include <openssl/ssl.h>
#include <nghttp2/nghttp2.h>
namespace shrpx {
namespace ssl {
struct CertLookupTree;
} // namespace ssl
extern const char SHRPX_OPT_PRIVATE_KEY_FILE[];
extern const char SHRPX_OPT_PRIVATE_KEY_PASSWD_FILE[];
extern const char SHRPX_OPT_CERTIFICATE_FILE[];
extern const char SHRPX_OPT_DH_PARAM_FILE[];
extern const char SHRPX_OPT_SUBCERT[];
extern const char SHRPX_OPT_BACKEND[];
extern const char SHRPX_OPT_FRONTEND[];
extern const char SHRPX_OPT_WORKERS[];
extern const char SHRPX_OPT_HTTP2_MAX_CONCURRENT_STREAMS[];
extern const char SHRPX_OPT_LOG_LEVEL[];
extern const char SHRPX_OPT_DAEMON[];
extern const char SHRPX_OPT_HTTP2_PROXY[];
extern const char SHRPX_OPT_HTTP2_BRIDGE[];
extern const char SHRPX_OPT_CLIENT_PROXY[];
extern const char SHRPX_OPT_ADD_X_FORWARDED_FOR[];
extern const char SHRPX_OPT_NO_VIA[];
extern const char SHRPX_OPT_FRONTEND_HTTP2_READ_TIMEOUT[];
extern const char SHRPX_OPT_FRONTEND_READ_TIMEOUT[];
extern const char SHRPX_OPT_FRONTEND_WRITE_TIMEOUT[];
extern const char SHRPX_OPT_BACKEND_READ_TIMEOUT[];
extern const char SHRPX_OPT_BACKEND_WRITE_TIMEOUT[];
extern const char SHRPX_OPT_STREAM_READ_TIMEOUT[];
extern const char SHRPX_OPT_STREAM_WRITE_TIMEOUT[];
extern const char SHRPX_OPT_ACCESSLOG_FILE[];
extern const char SHRPX_OPT_ACCESSLOG_SYSLOG[];
extern const char SHRPX_OPT_ERRORLOG_FILE[];
extern const char SHRPX_OPT_ERRORLOG_SYSLOG[];
extern const char SHRPX_OPT_BACKEND_KEEP_ALIVE_TIMEOUT[];
extern const char SHRPX_OPT_FRONTEND_HTTP2_WINDOW_BITS[];
extern const char SHRPX_OPT_BACKEND_HTTP2_WINDOW_BITS[];
extern const char SHRPX_OPT_FRONTEND_HTTP2_CONNECTION_WINDOW_BITS[];
extern const char SHRPX_OPT_BACKEND_HTTP2_CONNECTION_WINDOW_BITS[];
extern const char SHRPX_OPT_FRONTEND_NO_TLS[];
extern const char SHRPX_OPT_BACKEND_NO_TLS[];
extern const char SHRPX_OPT_PID_FILE[];
extern const char SHRPX_OPT_USER[];
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extern const char SHRPX_OPT_SYSLOG_FACILITY[];
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extern const char SHRPX_OPT_BACKLOG[];
extern const char SHRPX_OPT_CIPHERS[];
extern const char SHRPX_OPT_CLIENT[];
extern const char SHRPX_OPT_INSECURE[];
extern const char SHRPX_OPT_CACERT[];
extern const char SHRPX_OPT_BACKEND_IPV4[];
extern const char SHRPX_OPT_BACKEND_IPV6[];
extern const char SHRPX_OPT_BACKEND_HTTP_PROXY_URI[];
extern const char SHRPX_OPT_BACKEND_TLS_SNI_FIELD[];
extern const char SHRPX_OPT_READ_RATE[];
extern const char SHRPX_OPT_READ_BURST[];
extern const char SHRPX_OPT_WRITE_RATE[];
extern const char SHRPX_OPT_WRITE_BURST[];
extern const char SHRPX_OPT_WORKER_READ_RATE[];
extern const char SHRPX_OPT_WORKER_READ_BURST[];
extern const char SHRPX_OPT_WORKER_WRITE_RATE[];
extern const char SHRPX_OPT_WORKER_WRITE_BURST[];
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extern const char SHRPX_OPT_NPN_LIST[];
extern const char SHRPX_OPT_TLS_PROTO_LIST[];
extern const char SHRPX_OPT_VERIFY_CLIENT[];
extern const char SHRPX_OPT_VERIFY_CLIENT_CACERT[];
extern const char SHRPX_OPT_CLIENT_PRIVATE_KEY_FILE[];
extern const char SHRPX_OPT_CLIENT_CERT_FILE[];
extern const char SHRPX_OPT_FRONTEND_HTTP2_DUMP_REQUEST_HEADER[];
extern const char SHRPX_OPT_FRONTEND_HTTP2_DUMP_RESPONSE_HEADER[];
extern const char SHRPX_OPT_HTTP2_NO_COOKIE_CRUMBLING[];
extern const char SHRPX_OPT_FRONTEND_FRAME_DEBUG[];
extern const char SHRPX_OPT_PADDING[];
extern const char SHRPX_OPT_ALTSVC[];
extern const char SHRPX_OPT_ADD_RESPONSE_HEADER[];
extern const char SHRPX_OPT_WORKER_FRONTEND_CONNECTIONS[];
extern const char SHRPX_OPT_NO_LOCATION_REWRITE[];
extern const char SHRPX_OPT_BACKEND_CONNECTIONS_PER_FRONTEND[];
union sockaddr_union {
sockaddr sa;
sockaddr_storage storage;
sockaddr_in6 in6;
sockaddr_in in;
};
enum shrpx_proto {
PROTO_HTTP2,
PROTO_HTTP
};
struct AltSvc {
AltSvc()
: protocol_id(nullptr),
host(nullptr),
origin(nullptr),
protocol_id_len(0),
host_len(0),
origin_len(0),
port(0)
{}
char *protocol_id;
char *host;
char *origin;
size_t protocol_id_len;
size_t host_len;
size_t origin_len;
uint16_t port;
};
struct Config {
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// The list of (private key file, certificate file) pair
std::vector<std::pair<std::string, std::string>> subcerts;
std::vector<AltSvc> altsvcs;
std::vector<std::pair<std::string, std::string>> add_response_headers;
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std::vector<unsigned char> alpn_prefs;
std::shared_ptr<std::string> cached_time;
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sockaddr_union downstream_addr;
// binary form of http proxy host and port
sockaddr_union downstream_http_proxy_addr;
timeval http2_upstream_read_timeout;
timeval upstream_read_timeout;
timeval upstream_write_timeout;
timeval downstream_read_timeout;
timeval downstream_write_timeout;
timeval stream_read_timeout;
timeval stream_write_timeout;
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timeval downstream_idle_read_timeout;
std::unique_ptr<char[]> host;
std::unique_ptr<char[]> private_key_file;
std::unique_ptr<char[]> private_key_passwd;
std::unique_ptr<char[]> cert_file;
std::unique_ptr<char[]> dh_param_file;
SSL_CTX *default_ssl_ctx;
ssl::CertLookupTree *cert_tree;
const char *server_name;
std::unique_ptr<char[]> downstream_host;
std::unique_ptr<char[]> downstream_hostport;
std::unique_ptr<char[]> backend_tls_sni_name;
std::unique_ptr<char[]> pid_file;
std::unique_ptr<char[]> conf_path;
std::unique_ptr<char[]> ciphers;
std::unique_ptr<char[]> cacert;
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// userinfo in http proxy URI, not percent-encoded form
std::unique_ptr<char[]> downstream_http_proxy_userinfo;
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// host in http proxy URI
std::unique_ptr<char[]> downstream_http_proxy_host;
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std::unique_ptr<char[]> http2_upstream_dump_request_header_file;
std::unique_ptr<char[]> http2_upstream_dump_response_header_file;
// Rate limit configuration per connection
ev_token_bucket_cfg *rate_limit_cfg;
// Rate limit configuration per worker (thread)
ev_token_bucket_cfg *worker_rate_limit_cfg;
// list of supported NPN/ALPN protocol strings in the order of
// preference. The each element of this list is a NULL-terminated
// string.
std::vector<char*> npn_list;
// list of supported SSL/TLS protocol strings. The each element of
// this list is a NULL-terminated string.
std::vector<char*> tls_proto_list;
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// Path to file containing CA certificate solely used for client
// certificate validation
std::unique_ptr<char[]> verify_client_cacert;
std::unique_ptr<char[]> client_private_key_file;
std::unique_ptr<char[]> client_cert_file;
std::unique_ptr<char[]> accesslog_file;
std::unique_ptr<char[]> errorlog_file;
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FILE *http2_upstream_dump_request_header;
FILE *http2_upstream_dump_response_header;
nghttp2_option *http2_option;
char **argv;
char *cwd;
size_t downstream_addrlen;
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size_t num_worker;
size_t http2_max_concurrent_streams;
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size_t http2_upstream_window_bits;
size_t http2_downstream_window_bits;
size_t http2_upstream_connection_window_bits;
size_t http2_downstream_connection_window_bits;
size_t max_downstream_connections;
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// actual size of downstream_http_proxy_addr
size_t downstream_http_proxy_addrlen;
size_t read_rate;
size_t read_burst;
size_t write_rate;
size_t write_burst;
size_t worker_read_rate;
size_t worker_read_burst;
size_t worker_write_rate;
size_t worker_write_burst;
size_t padding;
size_t worker_frontend_connections;
// Bit mask to disable SSL/TLS protocol versions. This will be
// passed to SSL_CTX_set_options().
long int tls_proto_mask;
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// downstream protocol; this will be determined by given options.
shrpx_proto downstream_proto;
int syslog_facility;
int backlog;
int argc;
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uid_t uid;
gid_t gid;
uint16_t port;
uint16_t downstream_port;
// port in http proxy URI
uint16_t downstream_http_proxy_port;
bool verbose;
bool daemon;
bool verify_client;
bool http2_proxy;
bool http2_bridge;
bool client_proxy;
bool add_x_forwarded_for;
bool no_via;
bool upstream_no_tls;
bool downstream_no_tls;
// Send accesslog to syslog, ignoring accesslog_file.
bool accesslog_syslog;
// Send errorlog to syslog, ignoring errorlog_file.
bool errorlog_syslog;
bool client;
// true if --client or --client-proxy are enabled.
bool client_mode;
bool insecure;
bool backend_ipv4;
bool backend_ipv6;
bool http2_no_cookie_crumbling;
bool upstream_frame_debug;
bool no_location_rewrite;
};
const Config* get_config();
Config* mod_config();
void create_config();
// Parses option name |opt| and value |optarg|. The results are
// stored into statically allocated Config object. This function
// returns 0 if it succeeds, or -1.
int parse_config(const char *opt, const char *optarg);
// Loads configurations from |filename| and stores them in statically
// allocated Config object. This function returns 0 if it succeeds, or
// -1.
int load_config(const char *filename);
// Read passwd from |filename|
std::string read_passwd_from_file(const char *filename);
// Parses comma delimited strings in |s| and returns the array of
// pointers, each element points to the each substring in |s|. The
// |s| must be comma delimited list of strings. The strings must be
// delimited by a single comma and any white spaces around it are
// treated as a part of protocol strings. This function may modify
// |s| and the caller must leave it as is after this call. This
// function copies |s| and first element in the return value points to
// it. It is caller's responsibility to deallocate its memory.
std::vector<char*> parse_config_str_list(const char *s);
// Clears all elements of |list|, which is returned by
// parse_config_str_list(). If list is not empty, list[0] is freed by
// free(2). After this call, list.empty() must be true.
void clear_config_str_list(std::vector<char*>& list);
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// Parses header field in |optarg|. We expect header field is formed
// like "NAME: VALUE". We require that NAME is non empty string. ":"
// is allowed at the start of the NAME, but NAME == ":" is not
// allowed. This function returns pair of NAME and VALUE.
std::pair<std::string, std::string> parse_header(const char *optarg);
// Returns a copy of NULL-terminated string |val|.
std::unique_ptr<char[]> strcopy(const char *val);
// Returns a copy of val.c_str().
std::unique_ptr<char[]> strcopy(const std::string& val);
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// Returns string for syslog |facility|.
const char* str_syslog_facility(int facility);
// Returns integer value of syslog |facility| string.
int int_syslog_facility(const char *strfacility);
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FILE* open_file_for_write(const char *filename);
} // namespace shrpx
#endif // SHRPX_CONFIG_H