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nghttp2/src/shrpx.cc

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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.
*/
#include "shrpx.h"
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif // HAVE_SYS_SOCKET_H
#include <sys/un.h>
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif // HAVE_NETDB_H
#include <signal.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif // HAVE_NETINET_IN_H
#include <netinet/tcp.h>
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif // HAVE_ARPA_INET_H
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif // HAVE_UNISTD_H
#include <getopt.h>
#ifdef HAVE_SYSLOG_H
#include <syslog.h>
#endif // HAVE_SYSLOG_H
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif // HAVE_LIMITS_H
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif // HAVE_SYS_TIME_H
#include <sys/resource.h>
#include <cinttypes>
#include <limits>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <vector>
#include <initializer_list>
#include <random>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <ev.h>
#include <nghttp2/nghttp2.h>
#include "shrpx_config.h"
#include "shrpx_ssl.h"
#include "shrpx_log_config.h"
#include "shrpx_worker.h"
#include "shrpx_http2_upstream.h"
#include "shrpx_http2_session.h"
#include "shrpx_worker_process.h"
#include "shrpx_process.h"
#include "shrpx_signal.h"
#include "shrpx_connection.h"
#include "util.h"
#include "app_helper.h"
#include "ssl.h"
#include "template.h"
#include "allocator.h"
#include "ssl_compat.h"
#include "xsi_strerror.h"
extern char **environ;
using namespace nghttp2;
namespace shrpx {
// Deprecated: Environment variables to tell new binary the listening
// socket's file descriptors. They are not close-on-exec.
constexpr auto ENV_LISTENER4_FD = StringRef::from_lit("NGHTTPX_LISTENER4_FD");
constexpr auto ENV_LISTENER6_FD = StringRef::from_lit("NGHTTPX_LISTENER6_FD");
// Deprecated: Environment variable to tell new binary the port number
// the current binary is listening to.
constexpr auto ENV_PORT = StringRef::from_lit("NGHTTPX_PORT");
// Deprecated: Environment variable to tell new binary the listening
// socket's file descriptor if frontend listens UNIX domain socket.
constexpr auto ENV_UNIX_FD = StringRef::from_lit("NGHTTP2_UNIX_FD");
// Deprecated: Environment variable to tell new binary the UNIX domain
// socket path.
constexpr auto ENV_UNIX_PATH = StringRef::from_lit("NGHTTP2_UNIX_PATH");
// Prefix of environment variables to tell new binary the listening
// socket's file descriptor. They are not close-on-exec. For TCP
// socket, the value must be comma separated 2 parameters: tcp,<FD>.
// <FD> is file descriptor. For UNIX domain socket, the value must be
// comma separated 3 parameters: unix,<FD>,<PATH>. <FD> is file
// descriptor. <PATH> is a path to UNIX domain socket.
constexpr auto ENV_ACCEPT_PREFIX = StringRef::from_lit("NGHTTPX_ACCEPT_");
#ifndef _KERNEL_FASTOPEN
#define _KERNEL_FASTOPEN
// conditional define for TCP_FASTOPEN mostly on ubuntu
#ifndef TCP_FASTOPEN
#define TCP_FASTOPEN 23
#endif
// conditional define for SOL_TCP mostly on ubuntu
#ifndef SOL_TCP
#define SOL_TCP 6
#endif
#endif
// This configuration is fixed at the first startup of the main
// process, and does not change after subsequent reloadings.
struct StartupConfig {
// This contains all options given in command-line.
std::vector<std::pair<StringRef, StringRef>> cmdcfgs;
// The current working directory where this process started.
char *cwd;
// The pointer to original argv (not sure why we have this?)
char **original_argv;
// The pointer to argv, this is a deep copy of original argv.
char **argv;
// The number of elements in argv.
int argc;
};
namespace {
StartupConfig suconfig;
} // namespace
struct InheritedAddr {
// IP address if TCP socket. Otherwise, UNIX domain socket path.
StringRef host;
uint16_t port;
// true if UNIX domain socket path
bool host_unix;
int fd;
bool used;
};
namespace {
std::random_device rd;
} // namespace
namespace {
void signal_cb(struct ev_loop *loop, ev_signal *w, int revents);
} // namespace
namespace {
void worker_process_child_cb(struct ev_loop *loop, ev_child *w, int revents);
} // namespace
struct WorkerProcess {
WorkerProcess(struct ev_loop *loop, pid_t worker_pid, int ipc_fd)
: loop(loop), worker_pid(worker_pid), ipc_fd(ipc_fd) {
ev_signal_init(&reopen_log_signalev, signal_cb, REOPEN_LOG_SIGNAL);
reopen_log_signalev.data = this;
ev_signal_start(loop, &reopen_log_signalev);
ev_signal_init(&exec_binary_signalev, signal_cb, EXEC_BINARY_SIGNAL);
exec_binary_signalev.data = this;
ev_signal_start(loop, &exec_binary_signalev);
ev_signal_init(&graceful_shutdown_signalev, signal_cb,
GRACEFUL_SHUTDOWN_SIGNAL);
graceful_shutdown_signalev.data = this;
ev_signal_start(loop, &graceful_shutdown_signalev);
ev_signal_init(&reload_signalev, signal_cb, RELOAD_SIGNAL);
reload_signalev.data = this;
ev_signal_start(loop, &reload_signalev);
ev_child_init(&worker_process_childev, worker_process_child_cb, worker_pid,
0);
worker_process_childev.data = this;
ev_child_start(loop, &worker_process_childev);
}
~WorkerProcess() {
shutdown_signal_watchers();
ev_child_stop(loop, &worker_process_childev);
if (ipc_fd != -1) {
shutdown(ipc_fd, SHUT_WR);
close(ipc_fd);
}
}
void shutdown_signal_watchers() {
ev_signal_stop(loop, &reopen_log_signalev);
ev_signal_stop(loop, &exec_binary_signalev);
ev_signal_stop(loop, &graceful_shutdown_signalev);
ev_signal_stop(loop, &reload_signalev);
}
ev_signal reopen_log_signalev;
ev_signal exec_binary_signalev;
ev_signal graceful_shutdown_signalev;
ev_signal reload_signalev;
ev_child worker_process_childev;
struct ev_loop *loop;
pid_t worker_pid;
int ipc_fd;
};
namespace {
void reload_config(WorkerProcess *wp);
} // namespace
namespace {
std::deque<std::unique_ptr<WorkerProcess>> worker_processes;
} // namespace
namespace {
void worker_process_add(std::unique_ptr<WorkerProcess> wp) {
worker_processes.push_back(std::move(wp));
}
} // namespace
namespace {
void worker_process_remove(const WorkerProcess *wp) {
for (auto it = std::begin(worker_processes); it != std::end(worker_processes);
++it) {
auto &s = *it;
if (s.get() != wp) {
continue;
}
worker_processes.erase(it);
break;
}
}
} // namespace
namespace {
void worker_process_remove_all() {
std::deque<std::unique_ptr<WorkerProcess>>().swap(worker_processes);
}
} // namespace
namespace {
// Send signal |signum| to all worker processes, and clears
// worker_processes.
void worker_process_kill(int signum) {
for (auto &s : worker_processes) {
if (s->worker_pid == -1) {
continue;
}
kill(s->worker_pid, signum);
}
worker_process_remove_all();
}
} // namespace
namespace {
// Returns the last PID of worker process. Returns -1 if there is no
// worker process at the moment.
int worker_process_last_pid() {
if (worker_processes.empty()) {
return -1;
}
return worker_processes.back()->worker_pid;
}
} // namespace
namespace {
int chown_to_running_user(const char *path) {
auto config = get_config();
return chown(path, config->uid, config->gid);
}
} // namespace
namespace {
int save_pid() {
std::array<char, STRERROR_BUFSIZE> errbuf;
auto config = get_config();
constexpr auto SUFFIX = StringRef::from_lit(".XXXXXX");
auto &pid_file = config->pid_file;
auto len = config->pid_file.size() + SUFFIX.size();
auto buf = make_unique<char[]>(len + 1);
auto p = buf.get();
p = std::copy(std::begin(pid_file), std::end(pid_file), p);
p = std::copy(std::begin(SUFFIX), std::end(SUFFIX), p);
*p = '\0';
auto temp_path = buf.get();
auto fd = mkstemp(temp_path);
if (fd == -1) {
auto error = errno;
LOG(ERROR) << "Could not save PID to file " << pid_file << ": "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
auto content = util::utos(config->pid) + '\n';
if (write(fd, content.c_str(), content.size()) == -1) {
auto error = errno;
LOG(ERROR) << "Could not save PID to file " << pid_file << ": "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
if (fsync(fd) == -1) {
auto error = errno;
LOG(ERROR) << "Could not save PID to file " << pid_file << ": "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
close(fd);
if (rename(temp_path, pid_file.c_str()) == -1) {
auto error = errno;
LOG(ERROR) << "Could not save PID to file " << pid_file << ": "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
unlink(temp_path);
return -1;
}
if (config->uid != 0) {
if (chown_to_running_user(pid_file.c_str()) == -1) {
auto error = errno;
LOG(WARN) << "Changing owner of pid file " << pid_file << " failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
return 0;
}
} // namespace
namespace {
void exec_binary() {
int rv;
sigset_t oldset;
std::array<char, STRERROR_BUFSIZE> errbuf;
LOG(NOTICE) << "Executing new binary";
rv = shrpx_signal_block_all(&oldset);
if (rv != 0) {
auto error = errno;
LOG(ERROR) << "Blocking all signals failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return;
}
auto pid = fork();
if (pid != 0) {
if (pid == -1) {
auto error = errno;
LOG(ERROR) << "fork() failed errno=" << error;
}
rv = shrpx_signal_set(&oldset);
if (rv != 0) {
auto error = errno;
LOG(FATAL) << "Restoring signal mask failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
exit(EXIT_FAILURE);
}
return;
}
// child process
shrpx_signal_unset_master_proc_ign_handler();
rv = shrpx_signal_unblock_all();
if (rv != 0) {
auto error = errno;
LOG(ERROR) << "Unblocking all signals failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
_Exit(EXIT_FAILURE);
}
auto exec_path =
util::get_exec_path(suconfig.argc, suconfig.argv, suconfig.cwd);
if (!exec_path) {
LOG(ERROR) << "Could not resolve the executable path";
_Exit(EXIT_FAILURE);
}
auto argv = make_unique<char *[]>(suconfig.argc + 1);
argv[0] = exec_path;
for (int i = 1; i < suconfig.argc; ++i) {
argv[i] = suconfig.argv[i];
}
argv[suconfig.argc] = nullptr;
size_t envlen = 0;
for (char **p = environ; *p; ++p, ++envlen)
;
auto &listenerconf = get_config()->conn.listener;
auto envp = make_unique<char *[]>(envlen + listenerconf.addrs.size() + 1);
size_t envidx = 0;
std::vector<ImmutableString> fd_envs;
for (size_t i = 0; i < listenerconf.addrs.size(); ++i) {
auto &addr = listenerconf.addrs[i];
auto s = ENV_ACCEPT_PREFIX.str();
s += util::utos(i + 1);
s += '=';
if (addr.host_unix) {
s += "unix,";
s += util::utos(addr.fd);
s += ',';
s += addr.host;
} else {
s += "tcp,";
s += util::utos(addr.fd);
}
fd_envs.emplace_back(s);
envp[envidx++] = const_cast<char *>(fd_envs.back().c_str());
}
for (size_t i = 0; i < envlen; ++i) {
auto env = StringRef{environ[i]};
if (util::starts_with(env, ENV_ACCEPT_PREFIX) ||
util::starts_with(env, ENV_LISTENER4_FD) ||
util::starts_with(env, ENV_LISTENER6_FD) ||
util::starts_with(env, ENV_PORT) ||
util::starts_with(env, ENV_UNIX_FD) ||
util::starts_with(env, ENV_UNIX_PATH)) {
continue;
}
envp[envidx++] = environ[i];
}
envp[envidx++] = nullptr;
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "cmdline";
for (int i = 0; argv[i]; ++i) {
LOG(INFO) << i << ": " << argv[i];
}
LOG(INFO) << "environ";
for (int i = 0; envp[i]; ++i) {
LOG(INFO) << i << ": " << envp[i];
}
}
// restores original stderr
util::restore_original_fds();
if (execve(argv[0], argv.get(), envp.get()) == -1) {
auto error = errno;
LOG(ERROR) << "execve failed: errno=" << error;
_Exit(EXIT_FAILURE);
}
}
} // namespace
namespace {
void ipc_send(WorkerProcess *wp, uint8_t ipc_event) {
std::array<char, STRERROR_BUFSIZE> errbuf;
ssize_t nwrite;
while ((nwrite = write(wp->ipc_fd, &ipc_event, 1)) == -1 && errno == EINTR)
;
if (nwrite < 0) {
auto error = errno;
LOG(ERROR) << "Could not send IPC event to worker process: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return;
}
if (nwrite == 0) {
LOG(ERROR) << "Could not send IPC event due to pipe overflow";
return;
}
}
} // namespace
namespace {
void reopen_log(WorkerProcess *wp) {
LOG(NOTICE) << "Reopening log files: master process";
(void)reopen_log_files();
redirect_stderr_to_errorlog();
ipc_send(wp, SHRPX_IPC_REOPEN_LOG);
}
} // namespace
namespace {
void signal_cb(struct ev_loop *loop, ev_signal *w, int revents) {
auto wp = static_cast<WorkerProcess *>(w->data);
if (wp->worker_pid == -1) {
ev_break(loop);
return;
}
switch (w->signum) {
case REOPEN_LOG_SIGNAL:
reopen_log(wp);
return;
case EXEC_BINARY_SIGNAL:
exec_binary();
return;
case GRACEFUL_SHUTDOWN_SIGNAL:
ipc_send(wp, SHRPX_IPC_GRACEFUL_SHUTDOWN);
return;
case RELOAD_SIGNAL:
reload_config(wp);
return;
default:
worker_process_kill(w->signum);
ev_break(loop);
return;
}
}
} // namespace
namespace {
void worker_process_child_cb(struct ev_loop *loop, ev_child *w, int revents) {
auto wp = static_cast<WorkerProcess *>(w->data);
log_chld(w->rpid, w->rstatus, "Worker process");
auto pid = wp->worker_pid;
worker_process_remove(wp);
if (worker_process_last_pid() == pid) {
ev_break(loop);
}
}
} // namespace
namespace {
int create_unix_domain_server_socket(UpstreamAddr &faddr,
std::vector<InheritedAddr> &iaddrs) {
std::array<char, STRERROR_BUFSIZE> errbuf;
auto found = std::find_if(
std::begin(iaddrs), std::end(iaddrs), [&faddr](const InheritedAddr &ia) {
return !ia.used && ia.host_unix && ia.host == faddr.host;
});
if (found != std::end(iaddrs)) {
LOG(NOTICE) << "Listening on UNIX domain socket " << faddr.host
<< (faddr.tls ? ", tls" : "");
(*found).used = true;
faddr.fd = (*found).fd;
faddr.hostport = StringRef::from_lit("localhost");
return 0;
}
#ifdef SOCK_NONBLOCK
auto fd = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0);
if (fd == -1) {
auto error = errno;
LOG(WARN) << "socket() syscall failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
#else // !SOCK_NONBLOCK
auto fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd == -1) {
auto error = errno;
LOG(WARN) << "socket() syscall failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
util::make_socket_nonblocking(fd);
#endif // !SOCK_NONBLOCK
int val = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val,
static_cast<socklen_t>(sizeof(val))) == -1) {
auto error = errno;
LOG(WARN) << "Failed to set SO_REUSEADDR option to listener socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
return -1;
}
sockaddr_union addr;
addr.un.sun_family = AF_UNIX;
if (faddr.host.size() + 1 > sizeof(addr.un.sun_path)) {
LOG(FATAL) << "UNIX domain socket path " << faddr.host << " is too long > "
<< sizeof(addr.un.sun_path);
close(fd);
return -1;
}
// copy path including terminal NULL
std::copy_n(faddr.host.c_str(), faddr.host.size() + 1, addr.un.sun_path);
// unlink (remove) already existing UNIX domain socket path
unlink(faddr.host.c_str());
if (bind(fd, &addr.sa, sizeof(addr.un)) != 0) {
auto error = errno;
LOG(FATAL) << "Failed to bind UNIX domain socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
return -1;
}
auto &listenerconf = get_config()->conn.listener;
if (listen(fd, listenerconf.backlog) != 0) {
auto error = errno;
LOG(FATAL) << "Failed to listen to UNIX domain socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
return -1;
}
LOG(NOTICE) << "Listening on UNIX domain socket " << faddr.host
<< (faddr.tls ? ", tls" : "");
faddr.fd = fd;
faddr.hostport = StringRef::from_lit("localhost");
return 0;
}
} // namespace
namespace {
int create_tcp_server_socket(UpstreamAddr &faddr,
std::vector<InheritedAddr> &iaddrs) {
std::array<char, STRERROR_BUFSIZE> errbuf;
int fd = -1;
int rv;
auto &listenerconf = get_config()->conn.listener;
auto service = util::utos(faddr.port);
addrinfo hints{};
hints.ai_family = faddr.family;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
#ifdef AI_ADDRCONFIG
hints.ai_flags |= AI_ADDRCONFIG;
#endif // AI_ADDRCONFIG
auto node =
faddr.host == StringRef::from_lit("*") ? nullptr : faddr.host.c_str();
addrinfo *res, *rp;
rv = getaddrinfo(node, service.c_str(), &hints, &res);
if (rv != 0) {
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "Unable to get IPv" << (faddr.family == AF_INET ? "4" : "6")
<< " address for " << faddr.host << ", port " << faddr.port
<< ": " << gai_strerror(rv);
}
return -1;
}
auto res_d = defer(freeaddrinfo, res);
std::array<char, NI_MAXHOST> host;
for (rp = res; rp; rp = rp->ai_next) {
rv = getnameinfo(rp->ai_addr, rp->ai_addrlen, host.data(), host.size(),
nullptr, 0, NI_NUMERICHOST);
if (rv != 0) {
LOG(WARN) << "getnameinfo() failed: " << gai_strerror(rv);
continue;
}
auto found = std::find_if(std::begin(iaddrs), std::end(iaddrs),
[&host, &faddr](const InheritedAddr &ia) {
return !ia.used && !ia.host_unix &&
ia.host == host.data() &&
ia.port == faddr.port;
});
if (found != std::end(iaddrs)) {
(*found).used = true;
fd = (*found).fd;
break;
}
#ifdef SOCK_NONBLOCK
fd =
socket(rp->ai_family, rp->ai_socktype | SOCK_NONBLOCK, rp->ai_protocol);
if (fd == -1) {
auto error = errno;
LOG(WARN) << "socket() syscall failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
continue;
}
#else // !SOCK_NONBLOCK
fd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (fd == -1) {
auto error = errno;
LOG(WARN) << "socket() syscall failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
continue;
}
util::make_socket_nonblocking(fd);
#endif // !SOCK_NONBLOCK
int val = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val,
static_cast<socklen_t>(sizeof(val))) == -1) {
auto error = errno;
LOG(WARN) << "Failed to set SO_REUSEADDR option to listener socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
continue;
}
#ifdef IPV6_V6ONLY
if (faddr.family == AF_INET6) {
if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &val,
static_cast<socklen_t>(sizeof(val))) == -1) {
auto error = errno;
LOG(WARN) << "Failed to set IPV6_V6ONLY option to listener socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
continue;
}
}
#endif // IPV6_V6ONLY
#ifdef TCP_DEFER_ACCEPT
val = 3;
if (setsockopt(fd, IPPROTO_TCP, TCP_DEFER_ACCEPT, &val,
static_cast<socklen_t>(sizeof(val))) == -1) {
auto error = errno;
LOG(WARN) << "Failed to set TCP_DEFER_ACCEPT option to listener socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
#endif // TCP_DEFER_ACCEPT
// When we are executing new binary, and the old binary did not
// bind privileged port (< 1024) for some reason, binding to those
// ports will fail with permission denied error.
if (bind(fd, rp->ai_addr, rp->ai_addrlen) == -1) {
auto error = errno;
LOG(WARN) << "bind() syscall failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
continue;
}
if (listenerconf.fastopen > 0) {
val = listenerconf.fastopen;
if (setsockopt(fd, SOL_TCP, TCP_FASTOPEN, &val,
static_cast<socklen_t>(sizeof(val))) == -1) {
auto error = errno;
LOG(WARN) << "Failed to set TCP_FASTOPEN option to listener socket: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
if (listen(fd, listenerconf.backlog) == -1) {
auto error = errno;
LOG(WARN) << "listen() syscall failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
continue;
}
break;
}
if (!rp) {
LOG(WARN) << "Listening " << (faddr.family == AF_INET ? "IPv4" : "IPv6")
<< " socket failed";
return -1;
}
faddr.fd = fd;
faddr.hostport = util::make_http_hostport(mod_config()->balloc,
StringRef{host.data()}, faddr.port);
LOG(NOTICE) << "Listening on " << faddr.hostport
<< (faddr.tls ? ", tls" : "");
return 0;
}
} // namespace
namespace {
// Returns array of InheritedAddr constructed from |config|. This
// function is intended to be used when reloading configuration, and
// |config| is usually a current configuration.
std::vector<InheritedAddr>
get_inherited_addr_from_config(BlockAllocator &balloc, Config *config) {
std::array<char, STRERROR_BUFSIZE> errbuf;
int rv;
auto &listenerconf = config->conn.listener;
std::vector<InheritedAddr> iaddrs(listenerconf.addrs.size());
size_t idx = 0;
for (auto &addr : listenerconf.addrs) {
auto &iaddr = iaddrs[idx++];
if (addr.host_unix) {
iaddr.host = addr.host;
iaddr.host_unix = true;
iaddr.fd = addr.fd;
continue;
}
iaddr.port = addr.port;
iaddr.fd = addr.fd;
// We have to getsockname/getnameinfo for fd, since we may have
// '*' appear in addr.host, which makes comparison against "real"
// address fail.
sockaddr_union su;
socklen_t salen = sizeof(su);
// We already added entry to iaddrs. Even if we got errors, we
// don't remove it. This is required because we have to close the
// socket if it is not reused. The empty host name usually does
// not match anything.
if (getsockname(addr.fd, &su.sa, &salen) != 0) {
auto error = errno;
LOG(WARN) << "getsockname() syscall failed (fd=" << addr.fd
<< "): " << xsi_strerror(error, errbuf.data(), errbuf.size());
continue;
}
std::array<char, NI_MAXHOST> host;
rv = getnameinfo(&su.sa, salen, host.data(), host.size(), nullptr, 0,
NI_NUMERICHOST);
if (rv != 0) {
LOG(WARN) << "getnameinfo() failed (fd=" << addr.fd
<< "): " << gai_strerror(rv);
continue;
}
iaddr.host = make_string_ref(balloc, StringRef{host.data()});
}
return iaddrs;
}
} // namespace
namespace {
// Returns array of InheritedAddr constructed from environment
// variables. This function handles the old environment variable
// names used in 1.7.0 or earlier.
std::vector<InheritedAddr> get_inherited_addr_from_env(Config *config) {
std::array<char, STRERROR_BUFSIZE> errbuf;
int rv;
std::vector<InheritedAddr> iaddrs;
{
// Upgrade from 1.7.0 or earlier
auto portenv = getenv(ENV_PORT.c_str());
if (portenv) {
size_t i = 1;
for (auto env_name : {ENV_LISTENER4_FD, ENV_LISTENER6_FD}) {
auto fdenv = getenv(env_name.c_str());
if (fdenv) {
auto name = ENV_ACCEPT_PREFIX.str();
name += util::utos(i);
std::string value = "tcp,";
value += fdenv;
setenv(name.c_str(), value.c_str(), 0);
++i;
}
}
} else {
// The return value of getenv may be allocated statically.
if (getenv(ENV_UNIX_PATH.c_str()) && getenv(ENV_UNIX_FD.c_str())) {
auto name = ENV_ACCEPT_PREFIX.str();
name += '1';
std::string value = "unix,";
value += getenv(ENV_UNIX_FD.c_str());
value += ',';
value += getenv(ENV_UNIX_PATH.c_str());
setenv(name.c_str(), value.c_str(), 0);
}
}
}
for (size_t i = 1;; ++i) {
auto name = ENV_ACCEPT_PREFIX.str();
name += util::utos(i);
auto env = getenv(name.c_str());
if (!env) {
break;
}
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "Read env " << name << "=" << env;
}
auto end_type = strchr(env, ',');
if (!end_type) {
continue;
}
auto type = StringRef(env, end_type);
auto value = end_type + 1;
if (type == StringRef::from_lit("unix")) {
auto endfd = strchr(value, ',');
if (!endfd) {
continue;
}
auto fd = util::parse_uint(reinterpret_cast<const uint8_t *>(value),
endfd - value);
if (fd == -1) {
LOG(WARN) << "Could not parse file descriptor from "
<< std::string(value, endfd - value);
continue;
}
auto path = endfd + 1;
if (strlen(path) == 0) {
LOG(WARN) << "Empty UNIX domain socket path (fd=" << fd << ")";
close(fd);
continue;
}
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "Inherit UNIX domain socket fd=" << fd
<< ", path=" << path;
}
InheritedAddr addr{};
addr.host = make_string_ref(config->balloc, StringRef{path});
addr.host_unix = true;
addr.fd = static_cast<int>(fd);
iaddrs.push_back(std::move(addr));
}
if (type == StringRef::from_lit("tcp")) {
auto fd = util::parse_uint(value);
if (fd == -1) {
LOG(WARN) << "Could not parse file descriptor from " << value;
continue;
}
sockaddr_union su;
socklen_t salen = sizeof(su);
if (getsockname(fd, &su.sa, &salen) != 0) {
auto error = errno;
LOG(WARN) << "getsockname() syscall failed (fd=" << fd
<< "): " << xsi_strerror(error, errbuf.data(), errbuf.size());
close(fd);
continue;
}
uint16_t port;
switch (su.storage.ss_family) {
case AF_INET:
port = ntohs(su.in.sin_port);
break;
case AF_INET6:
port = ntohs(su.in6.sin6_port);
break;
default:
close(fd);
continue;
}
std::array<char, NI_MAXHOST> host;
rv = getnameinfo(&su.sa, salen, host.data(), host.size(), nullptr, 0,
NI_NUMERICHOST);
if (rv != 0) {
LOG(WARN) << "getnameinfo() failed (fd=" << fd
<< "): " << gai_strerror(rv);
close(fd);
continue;
}
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "Inherit TCP socket fd=" << fd
<< ", address=" << host.data() << ", port=" << port;
}
InheritedAddr addr{};
addr.host = make_string_ref(config->balloc, StringRef{host.data()});
addr.port = static_cast<uint16_t>(port);
addr.fd = static_cast<int>(fd);
iaddrs.push_back(std::move(addr));
continue;
}
}
return iaddrs;
}
} // namespace
namespace {
// Closes all sockets which are not reused.
void close_unused_inherited_addr(const std::vector<InheritedAddr> &iaddrs) {
for (auto &ia : iaddrs) {
if (ia.used) {
continue;
}
close(ia.fd);
}
}
} // namespace
namespace {
int create_acceptor_socket(Config *config, std::vector<InheritedAddr> &iaddrs) {
std::array<char, STRERROR_BUFSIZE> errbuf;
auto &listenerconf = config->conn.listener;
for (auto &addr : listenerconf.addrs) {
if (addr.host_unix) {
if (create_unix_domain_server_socket(addr, iaddrs) != 0) {
return -1;
}
if (config->uid != 0) {
// fd is not associated to inode, so we cannot use fchown(2)
// here. https://lkml.org/lkml/2004/11/1/84
if (chown_to_running_user(addr.host.c_str()) == -1) {
auto error = errno;
LOG(WARN) << "Changing owner of UNIX domain socket " << addr.host
<< " failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
continue;
}
if (create_tcp_server_socket(addr, iaddrs) != 0) {
return -1;
}
}
return 0;
}
} // namespace
namespace {
int call_daemon() {
#ifdef __sgi
return _daemonize(0, 0, 0, 0);
#else // !__sgi
return daemon(0, 0);
#endif // !__sgi
}
} // namespace
namespace {
// Opens IPC socket used to communicate with worker proess. The
// communication is unidirectional; that is main process sends
// messages to the worker process. On success, ipc_fd[0] is for
// reading, and ipc_fd[1] for writing, just like pipe(2).
int create_ipc_socket(std::array<int, 2> &ipc_fd) {
std::array<char, STRERROR_BUFSIZE> errbuf;
int rv;
rv = pipe(ipc_fd.data());
if (rv == -1) {
auto error = errno;
LOG(WARN) << "Failed to create pipe to communicate worker process: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
for (int i = 0; i < 2; ++i) {
auto fd = ipc_fd[i];
util::make_socket_nonblocking(fd);
util::make_socket_closeonexec(fd);
}
return 0;
}
} // namespace
namespace {
// Creates worker process, and returns PID of worker process. On
// success, file descriptor for IPC (send only) is assigned to
// |main_ipc_fd|. In child process, we will close file descriptors
// which are inherited from previous configuration/process, but not
// used in the current configuration.
pid_t fork_worker_process(int &main_ipc_fd,
const std::vector<InheritedAddr> &iaddrs) {
std::array<char, STRERROR_BUFSIZE> errbuf;
int rv;
sigset_t oldset;
std::array<int, 2> ipc_fd;
rv = create_ipc_socket(ipc_fd);
if (rv != 0) {
return -1;
}
rv = shrpx_signal_block_all(&oldset);
if (rv != 0) {
auto error = errno;
LOG(ERROR) << "Blocking all signals failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
close(ipc_fd[0]);
close(ipc_fd[1]);
return -1;
}
auto pid = fork();
if (pid == 0) {
ev_loop_fork(EV_DEFAULT);
// Remove all WorkerProcesses to stop any registered watcher on
// default loop.
worker_process_remove_all();
close_unused_inherited_addr(iaddrs);
shrpx_signal_set_worker_proc_ign_handler();
rv = shrpx_signal_unblock_all();
if (rv != 0) {
auto error = errno;
LOG(FATAL) << "Unblocking all signals failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
_Exit(EXIT_FAILURE);
}
close(ipc_fd[1]);
WorkerProcessConfig wpconf{ipc_fd[0]};
rv = worker_process_event_loop(&wpconf);
if (rv != 0) {
LOG(FATAL) << "Worker process returned error";
_Exit(EXIT_FAILURE);
}
LOG(NOTICE) << "Worker process shutting down momentarily";
// call exit(...) instead of _Exit to get leak sanitizer report
_Exit(EXIT_SUCCESS);
}
// parent process
if (pid == -1) {
auto error = errno;
LOG(ERROR) << "Could not spawn worker process: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
rv = shrpx_signal_set(&oldset);
if (rv != 0) {
auto error = errno;
LOG(FATAL) << "Restoring signal mask failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
exit(EXIT_FAILURE);
}
if (pid == -1) {
close(ipc_fd[0]);
close(ipc_fd[1]);
return -1;
}
close(ipc_fd[0]);
main_ipc_fd = ipc_fd[1];
LOG(NOTICE) << "Worker process [" << pid << "] spawned";
return pid;
}
} // namespace
namespace {
int event_loop() {
std::array<char, STRERROR_BUFSIZE> errbuf;
shrpx_signal_set_master_proc_ign_handler();
auto config = mod_config();
if (config->daemon) {
if (call_daemon() == -1) {
auto error = errno;
LOG(FATAL) << "Failed to daemonize: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
// We get new PID after successful daemon().
mod_config()->pid = getpid();
// daemon redirects stderr file descriptor to /dev/null, so we
// need this.
redirect_stderr_to_errorlog();
}
{
auto iaddrs = get_inherited_addr_from_env(config);
if (create_acceptor_socket(config, iaddrs) != 0) {
return -1;
}
close_unused_inherited_addr(iaddrs);
}
auto loop = ev_default_loop(config->ev_loop_flags);
int ipc_fd;
auto pid = fork_worker_process(ipc_fd, {});
if (pid == -1) {
return -1;
}
worker_process_add(make_unique<WorkerProcess>(loop, pid, ipc_fd));
// Write PID file when we are ready to accept connection from peer.
// This makes easier to write restart script for nghttpx. Because
// when we know that PID file is recreated, it means we can send
// QUIT signal to the old process to make it shutdown gracefully.
if (!config->pid_file.empty()) {
save_pid();
}
ev_run(loop, 0);
return 0;
}
} // namespace
namespace {
// Returns true if regular file or symbolic link |path| exists.
bool conf_exists(const char *path) {
struct stat buf;
int rv = stat(path, &buf);
return rv == 0 && (buf.st_mode & (S_IFREG | S_IFLNK));
}
} // namespace
namespace {
constexpr auto DEFAULT_NPN_LIST = StringRef::from_lit("h2,h2-16,h2-14,"
#ifdef HAVE_SPDYLAY
"spdy/3.1,"
#endif // HAVE_SPDYLAY
"http/1.1");
} // namespace
namespace {
constexpr auto DEFAULT_TLS_PROTO_LIST = StringRef::from_lit("TLSv1.2,TLSv1.1");
} // namespace
namespace {
constexpr auto DEFAULT_ACCESSLOG_FORMAT = StringRef::from_lit(
R"($remote_addr - - [$time_local] )"
R"("$request" $status $body_bytes_sent )"
R"("$http_referer" "$http_user_agent")");
} // namespace
namespace {
void fill_default_config(Config *config) {
config->num_worker = 1;
config->conf_path = StringRef::from_lit("/etc/nghttpx/nghttpx.conf");
config->pid = getpid();
if (ev_supported_backends() & ~ev_recommended_backends() & EVBACKEND_KQUEUE) {
config->ev_loop_flags = ev_recommended_backends() | EVBACKEND_KQUEUE;
}
auto &tlsconf = config->tls;
{
auto &ticketconf = tlsconf.ticket;
{
auto &memcachedconf = ticketconf.memcached;
memcachedconf.max_retry = 3;
memcachedconf.max_fail = 2;
memcachedconf.interval = 10_min;
memcachedconf.family = AF_UNSPEC;
}
auto &session_cacheconf = tlsconf.session_cache;
{
auto &memcachedconf = session_cacheconf.memcached;
memcachedconf.family = AF_UNSPEC;
}
ticketconf.cipher = EVP_aes_128_cbc();
}
{
auto &ocspconf = tlsconf.ocsp;
// ocsp update interval = 14400 secs = 4 hours, borrowed from h2o
ocspconf.update_interval = 4_h;
ocspconf.fetch_ocsp_response_file =
StringRef::from_lit(PKGDATADIR "/fetch-ocsp-response");
}
{
auto &dyn_recconf = tlsconf.dyn_rec;
dyn_recconf.warmup_threshold = 1_m;
dyn_recconf.idle_timeout = 1_s;
}
tlsconf.session_timeout = std::chrono::hours(12);
#if OPENSSL_1_1_API
tlsconf.ecdh_curves = StringRef::from_lit("X25519:P-256:P-384:P-521");
#else // !OPENSSL_1_1_API
tlsconf.ecdh_curves = StringRef::from_lit("P-256:P-384:P-521");
#endif // !OPENSSL_1_1_API
auto &httpconf = config->http;
httpconf.server_name =
StringRef::from_lit("nghttpx nghttp2/" NGHTTP2_VERSION);
httpconf.no_host_rewrite = true;
httpconf.request_header_field_buffer = 64_k;
httpconf.max_request_header_fields = 100;
httpconf.response_header_field_buffer = 64_k;
httpconf.max_response_header_fields = 500;
auto &http2conf = config->http2;
{
auto &upstreamconf = http2conf.upstream;
{
auto &timeoutconf = upstreamconf.timeout;
timeoutconf.settings = 10_s;
}
// window size for HTTP/2 and SPDY upstream connection per stream.
// 2**16-1 = 64KiB-1, which is HTTP/2 default. Please note that
// SPDY/3 default is 64KiB.
upstreamconf.window_size = 64_k - 1;
// HTTP/2 and SPDY/3.1 has connection-level flow control. The
// default window size for HTTP/2 is 64KiB - 1. SPDY/3's default
// is 64KiB
upstreamconf.connection_window_size = 64_k - 1;
upstreamconf.max_concurrent_streams = 100;
upstreamconf.encoder_dynamic_table_size = 4_k;
upstreamconf.decoder_dynamic_table_size = 4_k;
nghttp2_option_new(&upstreamconf.option);
nghttp2_option_set_no_auto_window_update(upstreamconf.option, 1);
nghttp2_option_set_no_recv_client_magic(upstreamconf.option, 1);
nghttp2_option_set_max_deflate_dynamic_table_size(
upstreamconf.option, upstreamconf.encoder_dynamic_table_size);
// For API endpoint, we enable automatic window update. This is
// because we are a sink.
nghttp2_option_new(&upstreamconf.alt_mode_option);
nghttp2_option_set_no_recv_client_magic(upstreamconf.alt_mode_option, 1);
nghttp2_option_set_max_deflate_dynamic_table_size(
upstreamconf.alt_mode_option, upstreamconf.encoder_dynamic_table_size);
}
{
auto &downstreamconf = http2conf.downstream;
{
auto &timeoutconf = downstreamconf.timeout;
timeoutconf.settings = 10_s;
}
downstreamconf.window_size = 64_k - 1;
downstreamconf.connection_window_size = (1u << 31) - 1;
downstreamconf.max_concurrent_streams = 100;
downstreamconf.encoder_dynamic_table_size = 4_k;
downstreamconf.decoder_dynamic_table_size = 4_k;
nghttp2_option_new(&downstreamconf.option);
nghttp2_option_set_no_auto_window_update(downstreamconf.option, 1);
nghttp2_option_set_peer_max_concurrent_streams(downstreamconf.option, 100);
nghttp2_option_set_max_deflate_dynamic_table_size(
downstreamconf.option, downstreamconf.encoder_dynamic_table_size);
}
auto &loggingconf = config->logging;
{
auto &accessconf = loggingconf.access;
accessconf.format =
parse_log_format(config->balloc, DEFAULT_ACCESSLOG_FORMAT);
auto &errorconf = loggingconf.error;
errorconf.file = StringRef::from_lit("/dev/stderr");
}
loggingconf.syslog_facility = LOG_DAEMON;
auto &connconf = config->conn;
{
auto &listenerconf = connconf.listener;
{
// Default accept() backlog
listenerconf.backlog = 512;
listenerconf.timeout.sleep = 30_s;
}
}
{
auto &upstreamconf = connconf.upstream;
{
auto &timeoutconf = upstreamconf.timeout;
// Read timeout for HTTP2 upstream connection
timeoutconf.http2_read = 3_min;
// Read timeout for non-HTTP2 upstream connection
timeoutconf.read = 1_min;
// Write timeout for HTTP2/non-HTTP2 upstream connection
timeoutconf.write = 30_s;
}
}
{
connconf.downstream = std::make_shared<DownstreamConfig>();
auto &downstreamconf = *connconf.downstream;
{
auto &timeoutconf = downstreamconf.timeout;
// Read/Write timeouts for downstream connection
timeoutconf.read = 1_min;
timeoutconf.write = 30_s;
// Timeout for pooled (idle) connections
timeoutconf.idle_read = 2_s;
timeoutconf.connect = 30_s;
timeoutconf.max_backoff = 120_s;
}
downstreamconf.connections_per_host = 8;
downstreamconf.request_buffer_size = 16_k;
downstreamconf.response_buffer_size = 128_k;
downstreamconf.family = AF_UNSPEC;
}
auto &apiconf = config->api;
apiconf.max_request_body = 16_k;
auto &dnsconf = config->dns;
{
auto &timeoutconf = dnsconf.timeout;
timeoutconf.cache = 10_s;
timeoutconf.lookup = 5_s;
}
dnsconf.max_try = 2;
}
} // namespace
namespace {
void print_version(std::ostream &out) {
out << get_config()->http.server_name.c_str() << std::endl;
}
} // namespace
namespace {
void print_usage(std::ostream &out) {
out << R"(Usage: nghttpx [OPTIONS]... [<PRIVATE_KEY> <CERT>]
A reverse proxy for HTTP/2, HTTP/1 and SPDY.)"
<< std::endl;
}
} // namespace
namespace {
void print_help(std::ostream &out) {
auto config = get_config();
print_usage(out);
out << R"(
<PRIVATE_KEY>
Set path to server's private key. Required unless
"no-tls" parameter is used in --frontend option.
<CERT> Set path to server's certificate. Required unless
"no-tls" parameter is used in --frontend option. To
make OCSP stapling work, this must be an absolute path.
Options:
The options are categorized into several groups.
Connections:
-b, --backend=(<HOST>,<PORT>|unix:<PATH>)[;[<PATTERN>[:...]][[;<PARAM>]...]
Set backend host and port. The multiple backend
addresses are accepted by repeating this option. UNIX
domain socket can be specified by prefixing path name
with "unix:" (e.g., unix:/var/run/backend.sock).
Optionally, if <PATTERN>s are given, the backend address
is only used if request matches the pattern. If
--http2-proxy is used, <PATTERN>s are ignored. The
pattern matching is closely designed to ServeMux in
net/http package of Go programming language. <PATTERN>
consists of path, host + path or just host. The path
must start with "/". If it ends with "/", it matches
all request path in its subtree. To deal with the
request to the directory without trailing slash, the
path which ends with "/" also matches the request path
which only lacks trailing '/' (e.g., path "/foo/"
matches request path "/foo"). If it does not end with
"/", it performs exact match against the request path.
If host is given, it performs exact match against the
request host. If host alone is given, "/" is appended
to it, so that it matches all request paths under the
host (e.g., specifying "nghttp2.org" equals to
"nghttp2.org/").
Patterns with host take precedence over patterns with
just path. Then, longer patterns take precedence over
shorter ones.
Host can include "*" in the left most position to
indicate wildcard match (only suffix match is done).
The "*" must match at least one character. For example,
host pattern "*.nghttp2.org" matches against
"www.nghttp2.org" and "git.ngttp2.org", but does not
match against "nghttp2.org". The exact hosts match
takes precedence over the wildcard hosts match.
If <PATTERN> is omitted or empty string, "/" is used as
pattern, which matches all request paths (catch-all
pattern). The catch-all backend must be given.
When doing a match, nghttpx made some normalization to
pattern, request host and path. For host part, they are
converted to lower case. For path part, percent-encoded
unreserved characters defined in RFC 3986 are decoded,
and any dot-segments (".." and ".") are resolved and
removed.
For example, -b'127.0.0.1,8080;nghttp2.org/httpbin/'
matches the request host "nghttp2.org" and the request
path "/httpbin/get", but does not match the request host
"nghttp2.org" and the request path "/index.html".
The multiple <PATTERN>s can be specified, delimiting
them by ":". Specifying
-b'127.0.0.1,8080;nghttp2.org:www.nghttp2.org' has the
same effect to specify -b'127.0.0.1,8080;nghttp2.org'
and -b'127.0.0.1,8080;www.nghttp2.org'.
The backend addresses sharing same <PATTERN> are grouped
together forming load balancing group.
Several parameters <PARAM> are accepted after <PATTERN>.
The parameters are delimited by ";". The available
parameters are: "proto=<PROTO>", "tls",
"sni=<SNI_HOST>", "fall=<N>", "rise=<N>",
"affinity=<METHOD>", and "dns". The parameter consists
of keyword, and optionally followed by "=" and value.
For example, the parameter "proto=h2" consists of the
keyword "proto" and value "h2". The parameter "tls"
consists of the keyword "tls" without value. Each
parameter is described as follows.
The backend application protocol can be specified using
optional "proto" parameter, and in the form of
"proto=<PROTO>". <PROTO> should be one of the following
list without quotes: "h2", "http/1.1". The default
value of <PROTO> is "http/1.1". Note that usually "h2"
refers to HTTP/2 over TLS. But in this option, it may
mean HTTP/2 over cleartext TCP unless "tls" keyword is
used (see below).
TLS can be enabled by specifying optional "tls"
parameter. TLS is not enabled by default.
With "sni=<SNI_HOST>" parameter, it can override the TLS
SNI field value with given <SNI_HOST>. This will
default to the backend <HOST> name
The feature to detect whether backend is online or
offline can be enabled using optional "fall" and "rise"
parameters. Using "fall=<N>" parameter, if nghttpx
cannot connect to a this backend <N> times in a row,
this backend is assumed to be offline, and it is
excluded from load balancing. If <N> is 0, this backend
never be excluded from load balancing whatever times
nghttpx cannot connect to it, and this is the default.
There is also "rise=<N>" parameter. After backend was
excluded from load balancing group, nghttpx periodically
attempts to make a connection to the failed backend, and
if the connection is made successfully <N> times in a
row, the backend is assumed to be online, and it is now
eligible for load balancing target. If <N> is 0, a
backend is permanently offline, once it goes in that
state, and this is the default behaviour.
The session affinity is enabled using
"affinity=<METHOD>" parameter. If "ip" is given in
<METHOD>, client IP based session affinity is enabled.
If "none" is given in <METHOD>, session affinity is
disabled, and this is the default. The session affinity
is enabled per <PATTERN>. If at least one backend has
"affinity" parameter, and its <METHOD> is not "none",
session affinity is enabled for all backend servers
sharing the same <PATTERN>. It is advised to set
"affinity" parameter to all backend explicitly if
session affinity is desired. The session affinity may
break if one of the backend gets unreachable, or backend
settings are reloaded or replaced by API.
By default, name resolution of backend host name is done
at start up, or reloading configuration. If "dns"
parameter is given, name resolution takes place
dynamically. This is useful if backend address changes
frequently. If "dns" is given, name resolution of
backend host name at start up, or reloading
configuration is skipped.
Since ";" and ":" are used as delimiter, <PATTERN> must
not contain these characters. Since ";" has special
meaning in shell, the option value must be quoted.
Default: )"
<< DEFAULT_DOWNSTREAM_HOST << "," << DEFAULT_DOWNSTREAM_PORT << R"(
-f, --frontend=(<HOST>,<PORT>|unix:<PATH>)[[;<PARAM>]...]
Set frontend host and port. If <HOST> is '*', it
assumes all addresses including both IPv4 and IPv6.
UNIX domain socket can be specified by prefixing path
name with "unix:" (e.g., unix:/var/run/nghttpx.sock).
This option can be used multiple times to listen to
multiple addresses.
This option can take 0 or more parameters, which are
described below. Note that "api" and "healthmon"
parameters are mutually exclusive.
Optionally, TLS can be disabled by specifying "no-tls"
parameter. TLS is enabled by default.
To make this frontend as API endpoint, specify "api"
parameter. This is disabled by default. It is
important to limit the access to the API frontend.
Otherwise, someone may change the backend server, and
break your services, or expose confidential information
to the outside the world.
To make this frontend as health monitor endpoint,
specify "healthmon" parameter. This is disabled by
default. Any requests which come through this address
are replied with 200 HTTP status, without no body.
Default: *,3000
--backlog=<N>
Set listen backlog size.
Default: )"
<< config->conn.listener.backlog << R"(
--backend-address-family=(auto|IPv4|IPv6)
Specify address family of backend connections. If
"auto" is given, both IPv4 and IPv6 are considered. If
"IPv4" is given, only IPv4 address is considered. If
"IPv6" is given, only IPv6 address is considered.
Default: auto
--backend-http-proxy-uri=<URI>
Specify proxy URI in the form
http://[<USER>:<PASS>@]<PROXY>:<PORT>. If a proxy
requires authentication, specify <USER> and <PASS>.
Note that they must be properly percent-encoded. This
proxy is used when the backend connection is HTTP/2.
First, make a CONNECT request to the proxy and it
connects to the backend on behalf of nghttpx. This
forms tunnel. After that, nghttpx performs SSL/TLS
handshake with the downstream through the tunnel. The
timeouts when connecting and making CONNECT request can
be specified by --backend-read-timeout and
--backend-write-timeout options.
--accept-proxy-protocol
Accept PROXY protocol version 1 on frontend connection.
Performance:
-n, --workers=<N>
Set the number of worker threads.
Default: )"
<< config->num_worker << R"(
--read-rate=<SIZE>
Set maximum average read rate on frontend connection.
Setting 0 to this option means read rate is unlimited.
Default: )"
<< config->conn.upstream.ratelimit.read.rate << R"(
--read-burst=<SIZE>
Set maximum read burst size on frontend connection.
Setting 0 to this option means read burst size is
unlimited.
Default: )"
<< config->conn.upstream.ratelimit.read.burst << R"(
--write-rate=<SIZE>
Set maximum average write rate on frontend connection.
Setting 0 to this option means write rate is unlimited.
Default: )"
<< config->conn.upstream.ratelimit.write.rate << R"(
--write-burst=<SIZE>
Set maximum write burst size on frontend connection.
Setting 0 to this option means write burst size is
unlimited.
Default: )"
<< config->conn.upstream.ratelimit.write.burst << R"(
--worker-read-rate=<SIZE>
Set maximum average read rate on frontend connection per
worker. Setting 0 to this option means read rate is
unlimited. Not implemented yet.
Default: 0
--worker-read-burst=<SIZE>
Set maximum read burst size on frontend connection per
worker. Setting 0 to this option means read burst size
is unlimited. Not implemented yet.
Default: 0
--worker-write-rate=<SIZE>
Set maximum average write rate on frontend connection
per worker. Setting 0 to this option means write rate
is unlimited. Not implemented yet.
Default: 0
--worker-write-burst=<SIZE>
Set maximum write burst size on frontend connection per
worker. Setting 0 to this option means write burst size
is unlimited. Not implemented yet.
Default: 0
--worker-frontend-connections=<N>
Set maximum number of simultaneous connections frontend
accepts. Setting 0 means unlimited.
Default: )"
<< config->conn.upstream.worker_connections << R"(
--backend-connections-per-host=<N>
Set maximum number of backend concurrent connections
(and/or streams in case of HTTP/2) per origin host.
This option is meaningful when --http2-proxy option is
used. The origin host is determined by authority
portion of request URI (or :authority header field for
HTTP/2). To limit the number of connections per
frontend for default mode, use
--backend-connections-per-frontend.
Default: )"
<< config->conn.downstream->connections_per_host << R"(
--backend-connections-per-frontend=<N>
Set maximum number of backend concurrent connections
(and/or streams in case of HTTP/2) per frontend. This
option is only used for default mode. 0 means
unlimited. To limit the number of connections per host
with --http2-proxy option, use
--backend-connections-per-host.
Default: )"
<< config->conn.downstream->connections_per_frontend << R"(
--rlimit-nofile=<N>
Set maximum number of open files (RLIMIT_NOFILE) to <N>.
If 0 is given, nghttpx does not set the limit.
Default: )"
<< config->rlimit_nofile << R"(
--backend-request-buffer=<SIZE>
Set buffer size used to store backend request.
Default: )"
<< util::utos_unit(config->conn.downstream->request_buffer_size) << R"(
--backend-response-buffer=<SIZE>
Set buffer size used to store backend response.
Default: )"
<< util::utos_unit(config->conn.downstream->response_buffer_size) << R"(
--fastopen=<N>
Enables "TCP Fast Open" for the listening socket and
limits the maximum length for the queue of connections
that have not yet completed the three-way handshake. If
value is 0 then fast open is disabled.
Default: )"
<< config->conn.listener.fastopen << R"(
--no-kqueue Don't use kqueue. This option is only applicable for
the platforms which have kqueue. For other platforms,
this option will be simply ignored.
Timeout:
--frontend-http2-read-timeout=<DURATION>
Specify read timeout for HTTP/2 and SPDY frontend
connection.
Default: )"
<< util::duration_str(config->conn.upstream.timeout.http2_read) << R"(
--frontend-read-timeout=<DURATION>
Specify read timeout for HTTP/1.1 frontend connection.
Default: )"
<< util::duration_str(config->conn.upstream.timeout.read) << R"(
--frontend-write-timeout=<DURATION>
Specify write timeout for all frontend connections.
Default: )"
<< util::duration_str(config->conn.upstream.timeout.write) << R"(
--stream-read-timeout=<DURATION>
Specify read timeout for HTTP/2 and SPDY streams. 0
means no timeout.
Default: )"
<< util::duration_str(config->http2.timeout.stream_read) << R"(
--stream-write-timeout=<DURATION>
Specify write timeout for HTTP/2 and SPDY streams. 0
means no timeout.
Default: )"
<< util::duration_str(config->http2.timeout.stream_write) << R"(
--backend-read-timeout=<DURATION>
Specify read timeout for backend connection.
Default: )"
<< util::duration_str(config->conn.downstream->timeout.read) << R"(
--backend-write-timeout=<DURATION>
Specify write timeout for backend connection.
Default: )"
<< util::duration_str(config->conn.downstream->timeout.write) << R"(
--backend-connect-timeout=<DURATION>
Specify timeout before establishing TCP connection to
backend.
Default: )"
<< util::duration_str(config->conn.downstream->timeout.connect) << R"(
--backend-keep-alive-timeout=<DURATION>
Specify keep-alive timeout for backend connection.
Default: )"
<< util::duration_str(config->conn.downstream->timeout.idle_read) << R"(
--listener-disable-timeout=<DURATION>
After accepting connection failed, connection listener
is disabled for a given amount of time. Specifying 0
disables this feature.
Default: )"
<< util::duration_str(config->conn.listener.timeout.sleep) << R"(
--frontend-http2-setting-timeout=<DURATION>
Specify timeout before SETTINGS ACK is received from
client.
Default: )"
<< util::duration_str(config->http2.upstream.timeout.settings) << R"(
--backend-http2-settings-timeout=<DURATION>
Specify timeout before SETTINGS ACK is received from
backend server.
Default: )"
<< util::duration_str(config->http2.downstream.timeout.settings) << R"(
--backend-max-backoff=<DURATION>
Specify maximum backoff interval. This is used when
doing health check against offline backend (see "fail"
parameter in --backend option). It is also used to
limit the maximum interval to temporarily disable
backend when nghttpx failed to connect to it. These
intervals are calculated using exponential backoff, and
consecutive failed attempts increase the interval. This
option caps its maximum value.
Default: )"
<< util::duration_str(config->conn.downstream->timeout.max_backoff) << R"(
SSL/TLS:
--ciphers=<SUITE>
Set allowed cipher list. The format of the string is
described in OpenSSL ciphers(1).
--ecdh-curves=<LIST>
Set supported curve list for frontend connections.
<LIST> is a colon separated list of curve NID or names
in the preference order. The supported curves depend on
the linked OpenSSL library. This function requires
OpenSSL >= 1.0.2.
Default: )"
<< config->tls.ecdh_curves << R"(
-k, --insecure
Don't verify backend server's certificate if TLS is
enabled for backend connections.
--cacert=<PATH>
Set path to trusted CA certificate file used in backend
TLS connections. The file must be in PEM format. It
can contain multiple certificates. If the linked
OpenSSL is configured to load system wide certificates,
they are loaded at startup regardless of this option.
--private-key-passwd-file=<PATH>
Path to file that contains password for the server's
private key. If none is given and the private key is
password protected it'll be requested interactively.
--subcert=<KEYPATH>:<CERTPATH>[[;<PARAM>]...]
Specify additional certificate and private key file.
nghttpx will choose certificates based on the hostname
indicated by client using TLS SNI extension. This
option can be used multiple times. To make OCSP
stapling work, <CERTPATH> must be absolute path.
Additional parameter can be specified in <PARAM>. The
available <PARAM> is "sct-dir=<DIR>".
"sct-dir=<DIR>" specifies the path to directory which
contains *.sct files for TLS
signed_certificate_timestamp extension (RFC 6962). This
feature requires OpenSSL >= 1.0.2. See also
--tls-sct-dir option.
--dh-param-file=<PATH>
Path to file that contains DH parameters in PEM format.
Without this option, DHE cipher suites are not
available.
--npn-list=<LIST>
Comma delimited list of ALPN protocol identifier sorted
in the order of preference. That means most desirable
protocol comes first. This is used in both ALPN and
NPN. The parameter must be delimited by a single comma
only and any white spaces are treated as a part of
protocol string.
Default: )"
<< DEFAULT_NPN_LIST << R"(
--verify-client
Require and verify client certificate.
--verify-client-cacert=<PATH>
Path to file that contains CA certificates to verify
client certificate. The file must be in PEM format. It
can contain multiple certificates.
--client-private-key-file=<PATH>
Path to file that contains client private key used in
backend client authentication.
--client-cert-file=<PATH>
Path to file that contains client certificate used in
backend client authentication.
--tls-proto-list=<LIST>
Comma delimited list of SSL/TLS protocol to be enabled.
The following protocols are available: TLSv1.2, TLSv1.1
and TLSv1.0. The name matching is done in
case-insensitive manner. The parameter must be
delimited by a single comma only and any white spaces
are treated as a part of protocol string. If the
protocol list advertised by client does not overlap this
list, you will receive the error message "unknown
protocol".
Default: )"
<< DEFAULT_TLS_PROTO_LIST << R"(
--tls-ticket-key-file=<PATH>
Path to file that contains random data to construct TLS
session ticket parameters. If aes-128-cbc is given in
--tls-ticket-key-cipher, the file must contain exactly
48 bytes. If aes-256-cbc is given in
--tls-ticket-key-cipher, the file must contain exactly
80 bytes. This options can be used repeatedly to
specify multiple ticket parameters. If several files
are given, only the first key is used to encrypt TLS
session tickets. Other keys are accepted but server
will issue new session ticket with first key. This
allows session key rotation. Please note that key
rotation does not occur automatically. User should
rearrange files or change options values and restart
nghttpx gracefully. If opening or reading given file
fails, all loaded keys are discarded and it is treated
as if none of this option is given. If this option is
not given or an error occurred while opening or reading
a file, key is generated every 1 hour internally and
they are valid for 12 hours. This is recommended if
ticket key sharing between nghttpx instances is not
required.
--tls-ticket-key-memcached=<HOST>,<PORT>[;tls]
Specify address of memcached server to get TLS ticket
keys for session resumption. This enables shared TLS
ticket key between multiple nghttpx instances. nghttpx
does not set TLS ticket key to memcached. The external
ticket key generator is required. nghttpx just gets TLS
ticket keys from memcached, and use them, possibly
replacing current set of keys. It is up to extern TLS
ticket key generator to rotate keys frequently. See
"TLS SESSION TICKET RESUMPTION" section in manual page
to know the data format in memcached entry. Optionally,
memcached connection can be encrypted with TLS by
specifying "tls" parameter.
--tls-ticket-key-memcached-address-family=(auto|IPv4|IPv6)
Specify address family of memcached connections to get
TLS ticket keys. If "auto" is given, both IPv4 and IPv6
are considered. If "IPv4" is given, only IPv4 address
is considered. If "IPv6" is given, only IPv6 address is
considered.
Default: auto
--tls-ticket-key-memcached-interval=<DURATION>
Set interval to get TLS ticket keys from memcached.
Default: )"
<< util::duration_str(config->tls.ticket.memcached.interval) << R"(
--tls-ticket-key-memcached-max-retry=<N>
Set maximum number of consecutive retries before
abandoning TLS ticket key retrieval. If this number is
reached, the attempt is considered as failure, and
"failure" count is incremented by 1, which contributed
to the value controlled
--tls-ticket-key-memcached-max-fail option.
Default: )"
<< config->tls.ticket.memcached.max_retry << R"(
--tls-ticket-key-memcached-max-fail=<N>
Set maximum number of consecutive failure before
disabling TLS ticket until next scheduled key retrieval.
Default: )"
<< config->tls.ticket.memcached.max_fail << R"(
--tls-ticket-key-cipher=<CIPHER>
Specify cipher to encrypt TLS session ticket. Specify
either aes-128-cbc or aes-256-cbc. By default,
aes-128-cbc is used.
--tls-ticket-key-memcached-cert-file=<PATH>
Path to client certificate for memcached connections to
get TLS ticket keys.
--tls-ticket-key-memcached-private-key-file=<PATH>
Path to client private key for memcached connections to
get TLS ticket keys.
--fetch-ocsp-response-file=<PATH>
Path to fetch-ocsp-response script file. It should be
absolute path.
Default: )"
<< config->tls.ocsp.fetch_ocsp_response_file << R"(
--ocsp-update-interval=<DURATION>
Set interval to update OCSP response cache.
Default: )"
<< util::duration_str(config->tls.ocsp.update_interval) << R"(
--no-ocsp Disable OCSP stapling.
--tls-session-cache-memcached=<HOST>,<PORT>[;tls]
Specify address of memcached server to store session
cache. This enables shared session cache between
multiple nghttpx instances. Optionally, memcached
connection can be encrypted with TLS by specifying "tls"
parameter.
--tls-session-cache-memcached-address-family=(auto|IPv4|IPv6)
Specify address family of memcached connections to store
session cache. If "auto" is given, both IPv4 and IPv6
are considered. If "IPv4" is given, only IPv4 address
is considered. If "IPv6" is given, only IPv6 address is
considered.
Default: auto
--tls-session-cache-memcached-cert-file=<PATH>
Path to client certificate for memcached connections to
store session cache.
--tls-session-cache-memcached-private-key-file=<PATH>
Path to client private key for memcached connections to
store session cache.
--tls-dyn-rec-warmup-threshold=<SIZE>
Specify the threshold size for TLS dynamic record size
behaviour. During a TLS session, after the threshold
number of bytes have been written, the TLS record size
will be increased to the maximum allowed (16K). The max
record size will continue to be used on the active TLS
session. After --tls-dyn-rec-idle-timeout has elapsed,
the record size is reduced to 1300 bytes. Specify 0 to
always use the maximum record size, regardless of idle
period. This behaviour applies to all TLS based
frontends, and TLS HTTP/2 backends.
Default: )"
<< util::utos_unit(config->tls.dyn_rec.warmup_threshold) << R"(
--tls-dyn-rec-idle-timeout=<DURATION>
Specify TLS dynamic record size behaviour timeout. See
--tls-dyn-rec-warmup-threshold for more information.
This behaviour applies to all TLS based frontends, and
TLS HTTP/2 backends.
Default: )"
<< util::duration_str(config->tls.dyn_rec.idle_timeout) << R"(
--no-http2-cipher-black-list
Allow black listed cipher suite on HTTP/2 connection.
See https://tools.ietf.org/html/rfc7540#appendix-A for
the complete HTTP/2 cipher suites black list.
--tls-sct-dir=<DIR>
Specifies the directory where *.sct files exist. All
*.sct files in <DIR> are read, and sent as
extension_data of TLS signed_certificate_timestamp (RFC
6962) to client. These *.sct files are for the
certificate specified in positional command-line
argument <CERT>, or certificate option in configuration
file. For additional certificates, use --subcert
option. This option requires OpenSSL >= 1.0.2.
HTTP/2 and SPDY:
-c, --frontend-http2-max-concurrent-streams=<N>
Set the maximum number of the concurrent streams in one
frontend HTTP/2 and SPDY session.
Default: )"
<< config->http2.upstream.max_concurrent_streams << R"(
--backend-http2-max-concurrent-streams=<N>
Set the maximum number of the concurrent streams in one
backend HTTP/2 session. This sets maximum number of
concurrent opened pushed streams. The maximum number of
concurrent requests are set by a remote server.
Default: )"
<< config->http2.downstream.max_concurrent_streams << R"(
--frontend-http2-window-size=<SIZE>
Sets the per-stream initial window size of HTTP/2 and
SPDY frontend connection.
Default: )"
<< config->http2.upstream.window_size << R"(
--frontend-http2-connection-window-size=<SIZE>
Sets the per-connection window size of HTTP/2 and SPDY
frontend connection. For SPDY connection, the value
less than 64KiB is rounded up to 64KiB.
Default: )"
<< config->http2.upstream.connection_window_size << R"(
--backend-http2-window-size=<SIZE>
Sets the initial window size of HTTP/2 backend
connection.
Default: )"
<< config->http2.downstream.window_size << R"(
--backend-http2-connection-window-size=<SIZE>
Sets the per-connection window size of HTTP/2 backend
connection.
Default: )"
<< config->http2.downstream.connection_window_size << R"(
--http2-no-cookie-crumbling
Don't crumble cookie header field.
--padding=<N>
Add at most <N> bytes to a HTTP/2 frame payload as
padding. Specify 0 to disable padding. This option is
meant for debugging purpose and not intended to enhance
protocol security.
--no-server-push
Disable HTTP/2 server push. Server push is supported by
default mode and HTTP/2 frontend via Link header field.
It is also supported if both frontend and backend are
HTTP/2 in default mode. In this case, server push from
backend session is relayed to frontend, and server push
via Link header field is also supported. SPDY frontend
does not support server push.
--frontend-http2-optimize-write-buffer-size
(Experimental) Enable write buffer size optimization in
frontend HTTP/2 TLS connection. This optimization aims
to reduce write buffer size so that it only contains
bytes which can send immediately. This makes server
more responsive to prioritized HTTP/2 stream because the
buffering of lower priority stream is reduced. This
option is only effective on recent Linux platform.
--frontend-http2-optimize-window-size
(Experimental) Automatically tune connection level
window size of frontend HTTP/2 TLS connection. If this
feature is enabled, connection window size starts with
the default window size, 65535 bytes. nghttpx
automatically adjusts connection window size based on
TCP receiving window size. The maximum window size is
capped by the value specified by
--frontend-http2-connection-window-size. Since the
stream is subject to stream level window size, it should
be adjusted using --frontend-http2-window-size option as
well. This option is only effective on recent Linux
platform.
--frontend-http2-encoder-dynamic-table-size=<SIZE>
Specify the maximum dynamic table size of HPACK encoder
in the frontend HTTP/2 connection. The decoder (client)
specifies the maximum dynamic table size it accepts.
Then the negotiated dynamic table size is the minimum of
this option value and the value which client specified.
Default: )"
<< util::utos_unit(config->http2.upstream.encoder_dynamic_table_size)
<< R"(
--frontend-http2-decoder-dynamic-table-size=<SIZE>
Specify the maximum dynamic table size of HPACK decoder
in the frontend HTTP/2 connection.
Default: )"
<< util::utos_unit(config->http2.upstream.decoder_dynamic_table_size)
<< R"(
--backend-http2-encoder-dynamic-table-size=<SIZE>
Specify the maximum dynamic table size of HPACK encoder
in the backend HTTP/2 connection. The decoder (backend)
specifies the maximum dynamic table size it accepts.
Then the negotiated dynamic table size is the minimum of
this option value and the value which backend specified.
Default: )"
<< util::utos_unit(config->http2.downstream.encoder_dynamic_table_size)
<< R"(
--backend-http2-decoder-dynamic-table-size=<SIZE>
Specify the maximum dynamic table size of HPACK decoder
in the backend HTTP/2 connection.
Default: )"
<< util::utos_unit(config->http2.downstream.decoder_dynamic_table_size)
<< R"(
Mode:
(default mode)
Accept HTTP/2, SPDY and HTTP/1.1 over SSL/TLS. "no-tls"
parameter is used in --frontend option, accept HTTP/2
and HTTP/1.1 over cleartext TCP. The incoming HTTP/1.1
connection can be upgraded to HTTP/2 through HTTP
Upgrade.
-s, --http2-proxy
Like default mode, but enable forward proxy. This is so
called HTTP/2 proxy mode.
Logging:
-L, --log-level=<LEVEL>
Set the severity level of log output. <LEVEL> must be
one of INFO, NOTICE, WARN, ERROR and FATAL.
Default: NOTICE
--accesslog-file=<PATH>
Set path to write access log. To reopen file, send USR1
signal to nghttpx.
--accesslog-syslog
Send access log to syslog. If this option is used,
--accesslog-file option is ignored.
--accesslog-format=<FORMAT>
Specify format string for access log. The default
format is combined format. The following variables are
available:
* $remote_addr: client IP address.
* $time_local: local time in Common Log format.
* $time_iso8601: local time in ISO 8601 format.
* $request: HTTP request line.
* $status: HTTP response status code.
* $body_bytes_sent: the number of bytes sent to client
as response body.
* $http_<VAR>: value of HTTP request header <VAR> where
'_' in <VAR> is replaced with '-'.
* $remote_port: client port.
* $server_port: server port.
* $request_time: request processing time in seconds with
milliseconds resolution.
* $pid: PID of the running process.
* $alpn: ALPN identifier of the protocol which generates
the response. For HTTP/1, ALPN is always http/1.1,
regardless of minor version.
* $ssl_cipher: cipher used for SSL/TLS connection.
* $ssl_protocol: protocol for SSL/TLS connection.
* $ssl_session_id: session ID for SSL/TLS connection.
* $ssl_session_reused: "r" if SSL/TLS session was
reused. Otherwise, "."
* $backend_host: backend host used to fulfill the
request. "-" if backend host is not available.
* $backend_port: backend port used to fulfill the
request. "-" if backend host is not available.
The variable can be enclosed by "{" and "}" for
disambiguation (e.g., ${remote_addr}).
Default: )"
<< DEFAULT_ACCESSLOG_FORMAT << R"(
--errorlog-file=<PATH>
Set path to write error log. To reopen file, send USR1
signal to nghttpx. stderr will be redirected to the
error log file unless --errorlog-syslog is used.
Default: )"
<< config->logging.error.file << R"(
--errorlog-syslog
Send error log to syslog. If this option is used,
--errorlog-file option is ignored.
--syslog-facility=<FACILITY>
Set syslog facility to <FACILITY>.
Default: )"
<< str_syslog_facility(config->logging.syslog_facility) << R"(
HTTP:
--add-x-forwarded-for
Append X-Forwarded-For header field to the downstream
request.
--strip-incoming-x-forwarded-for
Strip X-Forwarded-For header field from inbound client
requests.
--add-forwarded=<LIST>
Append RFC 7239 Forwarded header field with parameters
specified in comma delimited list <LIST>. The supported
parameters are "by", "for", "host", and "proto". By
default, the value of "by" and "for" parameters are
obfuscated string. See --forwarded-by and
--forwarded-for options respectively. Note that nghttpx
does not translate non-standard X-Forwarded-* header
fields into Forwarded header field, and vice versa.
--strip-incoming-forwarded
Strip Forwarded header field from inbound client
requests.
--forwarded-by=(obfuscated|ip|<VALUE>)
Specify the parameter value sent out with "by" parameter
of Forwarded header field. If "obfuscated" is given,
the string is randomly generated at startup. If "ip" is
given, the interface address of the connection,
including port number, is sent with "by" parameter. In
case of UNIX domain socket, "localhost" is used instead
of address and port. User can also specify the static
obfuscated string. The limitation is that it must start
with "_", and only consists of character set
[A-Za-z0-9._-], as described in RFC 7239.
Default: obfuscated
--forwarded-for=(obfuscated|ip)
Specify the parameter value sent out with "for"
parameter of Forwarded header field. If "obfuscated" is
given, the string is randomly generated for each client
connection. If "ip" is given, the remote client address
of the connection, without port number, is sent with
"for" parameter. In case of UNIX domain socket,
"localhost" is used instead of address.
Default: obfuscated
--no-via Don't append to Via header field. If Via header field
is received, it is left unaltered.
--no-location-rewrite
Don't rewrite location header field in default mode.
When --http2-proxy is used, location header field will
not be altered regardless of this option.
--host-rewrite
Rewrite host and :authority header fields in default
mode. When --http2-proxy is used, these headers will
not be altered regardless of this option.
--altsvc=<PROTOID,PORT[,HOST,[ORIGIN]]>
Specify protocol ID, port, host and origin of
alternative service. <HOST> and <ORIGIN> are optional.
They are advertised in alt-svc header field only in
HTTP/1.1 frontend. This option can be used multiple
times to specify multiple alternative services.
Example: --altsvc=h2,443
--add-request-header=<HEADER>
Specify additional header field to add to request header
set. This option just appends header field and won't
replace anything already set. This option can be used
several times to specify multiple header fields.
Example: --add-request-header="foo: bar"
--add-response-header=<HEADER>
Specify additional header field to add to response
header set. This option just appends header field and
won't replace anything already set. This option can be
used several times to specify multiple header fields.
Example: --add-response-header="foo: bar"
--request-header-field-buffer=<SIZE>
Set maximum buffer size for incoming HTTP request header
field list. This is the sum of header name and value in
bytes. If trailer fields exist, they are counted
towards this number.
Default: )"
<< util::utos_unit(config->http.request_header_field_buffer) << R"(
--max-request-header-fields=<N>
Set maximum number of incoming HTTP request header
fields. If trailer fields exist, they are counted
towards this number.
Default: )"
<< config->http.max_request_header_fields << R"(
--response-header-field-buffer=<SIZE>
Set maximum buffer size for incoming HTTP response
header field list. This is the sum of header name and
value in bytes. If trailer fields exist, they are
counted towards this number.
Default: )"
<< util::utos_unit(config->http.response_header_field_buffer) << R"(
--max-response-header-fields=<N>
Set maximum number of incoming HTTP response header
fields. If trailer fields exist, they are counted
towards this number.
Default: )"
<< config->http.max_response_header_fields << R"(
--error-page=(<CODE>|*)=<PATH>
Set file path to custom error page served when nghttpx
originally generates HTTP error status code <CODE>.
<CODE> must be greater than or equal to 400, and at most
599. If "*" is used instead of <CODE>, it matches all
HTTP status code. If error status code comes from
backend server, the custom error pages are not used.
--server-name=<NAME>
Change server response header field value to <NAME>.
Default: )"
<< config->http.server_name << R"(
--no-server-rewrite
Don't rewrite server header field in default mode. When
--http2-proxy is used, these headers will not be altered
regardless of this option.
API:
--api-max-request-body=<SIZE>
Set the maximum size of request body for API request.
Default: )"
<< util::utos_unit(config->api.max_request_body) << R"(
DNS:
--dns-cache-timeout=<DURATION>
Set duration that cached DNS results remain valid. Note
that nghttpx caches the unsuccessful results as well.
Default: )"
<< util::duration_str(config->dns.timeout.cache) << R"(
--dns-lookup-timeout=<DURATION>
Set timeout that DNS server is given to respond to the
initial DNS query. For the 2nd and later queries,
server is given time based on this timeout, and it is
scaled linearly.
Default: )"
<< util::duration_str(config->dns.timeout.lookup) << R"(
--dns-max-try=<N>
Set the number of DNS query before nghttpx gives up name
lookup.
Default: )"
<< config->dns.max_try << R"(
Debug:
--frontend-http2-dump-request-header=<PATH>
Dumps request headers received by HTTP/2 frontend to the
file denoted in <PATH>. The output is done in HTTP/1
header field format and each header block is followed by
an empty line. This option is not thread safe and MUST
NOT be used with option -n<N>, where <N> >= 2.
--frontend-http2-dump-response-header=<PATH>
Dumps response headers sent from HTTP/2 frontend to the
file denoted in <PATH>. The output is done in HTTP/1
header field format and each header block is followed by
an empty line. This option is not thread safe and MUST
NOT be used with option -n<N>, where <N> >= 2.
-o, --frontend-frame-debug
Print HTTP/2 frames in frontend to stderr. This option
is not thread safe and MUST NOT be used with option
-n=N, where N >= 2.
Process:
-D, --daemon
Run in a background. If -D is used, the current working
directory is changed to '/'.
--pid-file=<PATH>
Set path to save PID of this program.
--user=<USER>
Run this program as <USER>. This option is intended to
be used to drop root privileges.
Scripting:
--mruby-file=<PATH>
Set mruby script file
Misc:
--conf=<PATH>
Load configuration from <PATH>.
Default: )"
<< config->conf_path << R"(
--include=<PATH>
Load additional configurations from <PATH>. File <PATH>
is read when configuration parser encountered this
option. This option can be used multiple times, or even
recursively.
-v, --version
Print version and exit.
-h, --help Print this help and exit.
--
The <SIZE> argument is an integer and an optional unit (e.g., 10K is
10 * 1024). Units are K, M and G (powers of 1024).
The <DURATION> argument is an integer and an optional unit (e.g., 1s
is 1 second and 500ms is 500 milliseconds). Units are h, m, s or ms
(hours, minutes, seconds and milliseconds, respectively). If a unit
is omitted, a second is used as unit.)"
<< std::endl;
}
} // namespace
namespace {
int process_options(Config *config,
std::vector<std::pair<StringRef, StringRef>> &cmdcfgs) {
std::array<char, STRERROR_BUFSIZE> errbuf;
if (conf_exists(config->conf_path.c_str())) {
std::set<StringRef> include_set;
if (load_config(config, config->conf_path.c_str(), include_set) == -1) {
LOG(FATAL) << "Failed to load configuration from " << config->conf_path;
return -1;
}
assert(include_set.empty());
}
// Reopen log files using configurations in file
reopen_log_files();
{
std::set<StringRef> include_set;
for (auto &p : cmdcfgs) {
if (parse_config(config, p.first, p.second, include_set) == -1) {
LOG(FATAL) << "Failed to parse command-line argument.";
return -1;
}
}
assert(include_set.empty());
}
auto &loggingconf = config->logging;
if (loggingconf.access.syslog || loggingconf.error.syslog) {
openlog("nghttpx", LOG_NDELAY | LOG_NOWAIT | LOG_PID,
loggingconf.syslog_facility);
}
if (reopen_log_files() != 0) {
LOG(FATAL) << "Failed to open log file";
return -1;
}
redirect_stderr_to_errorlog();
if (config->uid != 0) {
if (log_config()->accesslog_fd != -1 &&
fchown(log_config()->accesslog_fd, config->uid, config->gid) == -1) {
auto error = errno;
LOG(WARN) << "Changing owner of access log file failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
if (log_config()->errorlog_fd != -1 &&
fchown(log_config()->errorlog_fd, config->uid, config->gid) == -1) {
auto error = errno;
LOG(WARN) << "Changing owner of error log file failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
auto &http2conf = config->http2;
{
auto &dumpconf = http2conf.upstream.debug.dump;
if (!dumpconf.request_header_file.empty()) {
auto path = dumpconf.request_header_file.c_str();
auto f = open_file_for_write(path);
if (f == nullptr) {
LOG(FATAL) << "Failed to open http2 upstream request header file: "
<< path;
return -1;
}
dumpconf.request_header = f;
if (config->uid != 0) {
if (chown_to_running_user(path) == -1) {
auto error = errno;
LOG(WARN) << "Changing owner of http2 upstream request header file "
<< path << " failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
}
if (!dumpconf.response_header_file.empty()) {
auto path = dumpconf.response_header_file.c_str();
auto f = open_file_for_write(path);
if (f == nullptr) {
LOG(FATAL) << "Failed to open http2 upstream response header file: "
<< path;
return -1;
}
dumpconf.response_header = f;
if (config->uid != 0) {
if (chown_to_running_user(path) == -1) {
auto error = errno;
LOG(WARN) << "Changing owner of http2 upstream response header file"
<< " " << path << " failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
}
}
auto &tlsconf = config->tls;
if (tlsconf.npn_list.empty()) {
tlsconf.npn_list = util::split_str(DEFAULT_NPN_LIST, ',');
}
if (tlsconf.tls_proto_list.empty()) {
tlsconf.tls_proto_list = util::split_str(DEFAULT_TLS_PROTO_LIST, ',');
}
tlsconf.tls_proto_mask = ssl::create_tls_proto_mask(tlsconf.tls_proto_list);
if (ssl::set_alpn_prefs(tlsconf.alpn_prefs, tlsconf.npn_list) != 0) {
return -1;
}
tlsconf.bio_method = create_bio_method();
auto &listenerconf = config->conn.listener;
auto &upstreamconf = config->conn.upstream;
if (listenerconf.addrs.empty()) {
UpstreamAddr addr{};
addr.host = StringRef::from_lit("*");
addr.port = 3000;
addr.tls = true;
addr.family = AF_INET;
listenerconf.addrs.push_back(addr);
addr.family = AF_INET6;
listenerconf.addrs.push_back(std::move(addr));
}
if (upstreamconf.worker_connections == 0) {
upstreamconf.worker_connections = std::numeric_limits<size_t>::max();
}
if (ssl::upstream_tls_enabled() &&
(tlsconf.private_key_file.empty() || tlsconf.cert_file.empty())) {
print_usage(std::cerr);
LOG(FATAL) << "Too few arguments";
return -1;
}
if (ssl::upstream_tls_enabled() && !tlsconf.ocsp.disabled) {
struct stat buf;
if (stat(tlsconf.ocsp.fetch_ocsp_response_file.c_str(), &buf) != 0) {
tlsconf.ocsp.disabled = true;
LOG(WARN) << "--fetch-ocsp-response-file: "
<< tlsconf.ocsp.fetch_ocsp_response_file
<< " not found. OCSP stapling has been disabled.";
}
}
if (configure_downstream_group(config, config->http2_proxy, false, tlsconf) !=
0) {
return -1;
}
auto &proxy = config->downstream_http_proxy;
if (!proxy.host.empty()) {
auto hostport = util::make_hostport(StringRef{proxy.host}, proxy.port);
if (resolve_hostname(&proxy.addr, proxy.host.c_str(), proxy.port,
AF_UNSPEC) == -1) {
LOG(FATAL) << "Resolving backend HTTP proxy address failed: " << hostport;
return -1;
}
LOG(NOTICE) << "Backend HTTP proxy address: " << hostport << " -> "
<< util::to_numeric_addr(&proxy.addr);
}
{
auto &memcachedconf = tlsconf.session_cache.memcached;
if (!memcachedconf.host.empty()) {
auto hostport = util::make_hostport(StringRef{memcachedconf.host},
memcachedconf.port);
if (resolve_hostname(&memcachedconf.addr, memcachedconf.host.c_str(),
memcachedconf.port, memcachedconf.family) == -1) {
LOG(FATAL)
<< "Resolving memcached address for TLS session cache failed: "
<< hostport;
return -1;
}
LOG(NOTICE) << "Memcached address for TLS session cache: " << hostport
<< " -> " << util::to_numeric_addr(&memcachedconf.addr);
if (memcachedconf.tls) {
LOG(NOTICE) << "Connection to memcached for TLS session cache will be "
"encrypted by TLS";
}
}
}
{
auto &memcachedconf = tlsconf.ticket.memcached;
if (!memcachedconf.host.empty()) {
auto hostport = util::make_hostport(StringRef{memcachedconf.host},
memcachedconf.port);
if (resolve_hostname(&memcachedconf.addr, memcachedconf.host.c_str(),
memcachedconf.port, memcachedconf.family) == -1) {
LOG(FATAL) << "Resolving memcached address for TLS ticket key failed: "
<< hostport;
return -1;
}
LOG(NOTICE) << "Memcached address for TLS ticket key: " << hostport
<< " -> " << util::to_numeric_addr(&memcachedconf.addr);
if (memcachedconf.tls) {
LOG(NOTICE) << "Connection to memcached for TLS ticket key will be "
"encrypted by TLS";
}
}
}
if (config->rlimit_nofile) {
struct rlimit lim = {static_cast<rlim_t>(config->rlimit_nofile),
static_cast<rlim_t>(config->rlimit_nofile)};
if (setrlimit(RLIMIT_NOFILE, &lim) != 0) {
auto error = errno;
LOG(WARN) << "Setting rlimit-nofile failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
auto &fwdconf = config->http.forwarded;
if (fwdconf.by_node_type == FORWARDED_NODE_OBFUSCATED &&
fwdconf.by_obfuscated.empty()) {
// 2 for '_' and terminal NULL
auto iov = make_byte_ref(config->balloc, SHRPX_OBFUSCATED_NODE_LENGTH + 2);
auto p = iov.base;
*p++ = '_';
std::mt19937 gen(rd());
p = util::random_alpha_digit(p, p + SHRPX_OBFUSCATED_NODE_LENGTH, gen);
*p = '\0';
fwdconf.by_obfuscated = StringRef{iov.base, p};
}
if (config->http2.upstream.debug.frame_debug) {
// To make it sync to logging
set_output(stderr);
if (isatty(fileno(stdout))) {
set_color_output(true);
}
reset_timer();
}
config->http2.upstream.callbacks = create_http2_upstream_callbacks();
config->http2.downstream.callbacks = create_http2_downstream_callbacks();
return 0;
}
} // namespace
namespace {
// Closes file descriptor which are opened for listeners in config,
// and are not inherited from |iaddrs|.
void close_not_inherited_fd(Config *config,
const std::vector<InheritedAddr> &iaddrs) {
auto &listenerconf = config->conn.listener;
for (auto &addr : listenerconf.addrs) {
auto inherited = std::find_if(
std::begin(iaddrs), std::end(iaddrs),
[&addr](const InheritedAddr &iaddr) { return addr.fd == iaddr.fd; });
if (inherited != std::end(iaddrs)) {
continue;
}
close(addr.fd);
}
}
} // namespace
namespace {
void reload_config(WorkerProcess *wp) {
int rv;
LOG(NOTICE) << "Reloading configuration";
auto cur_config = mod_config();
auto new_config = make_unique<Config>();
fill_default_config(new_config.get());
new_config->conf_path =
make_string_ref(new_config->balloc, cur_config->conf_path);
// daemon option is ignored here.
new_config->daemon = cur_config->daemon;
// loop is reused, and ev_loop_flags gets ignored
new_config->ev_loop_flags = cur_config->ev_loop_flags;
rv = process_options(new_config.get(), suconfig.cmdcfgs);
if (rv != 0) {
LOG(ERROR) << "Failed to process new configuration";
return;
}
auto iaddrs = get_inherited_addr_from_config(new_config->balloc, cur_config);
if (create_acceptor_socket(new_config.get(), iaddrs) != 0) {
close_not_inherited_fd(new_config.get(), iaddrs);
return;
}
// According to libev documentation, flags are ignored since we have
// already created first default loop.
auto loop = ev_default_loop(new_config->ev_loop_flags);
int ipc_fd;
// fork_worker_process and forked child process assumes new
// configuration can be obtained from get_config().
auto old_config = replace_config(std::move(new_config));
auto pid = fork_worker_process(ipc_fd, iaddrs);
if (pid == -1) {
LOG(ERROR) << "Failed to process new configuration";
new_config = replace_config(std::move(old_config));
close_not_inherited_fd(new_config.get(), iaddrs);
return;
}
close_unused_inherited_addr(iaddrs);
// Send last worker process a graceful shutdown notice
auto &last_wp = worker_processes.back();
ipc_send(last_wp.get(), SHRPX_IPC_GRACEFUL_SHUTDOWN);
// We no longer use signals for this worker.
last_wp->shutdown_signal_watchers();
worker_process_add(make_unique<WorkerProcess>(loop, pid, ipc_fd));
if (!get_config()->pid_file.empty()) {
save_pid();
}
}
} // namespace
int main(int argc, char **argv) {
int rv;
std::array<char, STRERROR_BUFSIZE> errbuf;
nghttp2::ssl::libssl_init();
#ifndef NOTHREADS
nghttp2::ssl::LibsslGlobalLock lock;
#endif // NOTHREADS
Log::set_severity_level(NOTICE);
create_config();
fill_default_config(mod_config());
// make copy of stderr
util::store_original_fds();
// First open log files with default configuration, so that we can
// log errors/warnings while reading configuration files.
reopen_log_files();
suconfig.original_argv = argv;
// We have to copy argv, since getopt_long may change its content.
suconfig.argc = argc;
suconfig.argv = new char *[argc];
for (int i = 0; i < argc; ++i) {
suconfig.argv[i] = strdup(argv[i]);
if (suconfig.argv[i] == nullptr) {
auto error = errno;
LOG(FATAL) << "failed to copy argv: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
exit(EXIT_FAILURE);
}
}
suconfig.cwd = getcwd(nullptr, 0);
if (suconfig.cwd == nullptr) {
auto error = errno;
LOG(FATAL) << "failed to get current working directory: errno=" << error;
exit(EXIT_FAILURE);
}
auto &cmdcfgs = suconfig.cmdcfgs;
while (1) {
static int flag = 0;
static option long_options[] = {
{SHRPX_OPT_DAEMON.c_str(), no_argument, nullptr, 'D'},
{SHRPX_OPT_LOG_LEVEL.c_str(), required_argument, nullptr, 'L'},
{SHRPX_OPT_BACKEND.c_str(), required_argument, nullptr, 'b'},
{SHRPX_OPT_HTTP2_MAX_CONCURRENT_STREAMS.c_str(), required_argument,
nullptr, 'c'},
{SHRPX_OPT_FRONTEND.c_str(), required_argument, nullptr, 'f'},
{"help", no_argument, nullptr, 'h'},
{SHRPX_OPT_INSECURE.c_str(), no_argument, nullptr, 'k'},
{SHRPX_OPT_WORKERS.c_str(), required_argument, nullptr, 'n'},
{SHRPX_OPT_CLIENT_PROXY.c_str(), no_argument, nullptr, 'p'},
{SHRPX_OPT_HTTP2_PROXY.c_str(), no_argument, nullptr, 's'},
{"version", no_argument, nullptr, 'v'},
{SHRPX_OPT_FRONTEND_FRAME_DEBUG.c_str(), no_argument, nullptr, 'o'},
{SHRPX_OPT_ADD_X_FORWARDED_FOR.c_str(), no_argument, &flag, 1},
{SHRPX_OPT_FRONTEND_HTTP2_READ_TIMEOUT.c_str(), required_argument,
&flag, 2},
{SHRPX_OPT_FRONTEND_READ_TIMEOUT.c_str(), required_argument, &flag, 3},
{SHRPX_OPT_FRONTEND_WRITE_TIMEOUT.c_str(), required_argument, &flag, 4},
{SHRPX_OPT_BACKEND_READ_TIMEOUT.c_str(), required_argument, &flag, 5},
{SHRPX_OPT_BACKEND_WRITE_TIMEOUT.c_str(), required_argument, &flag, 6},
{SHRPX_OPT_ACCESSLOG_FILE.c_str(), required_argument, &flag, 7},
{SHRPX_OPT_BACKEND_KEEP_ALIVE_TIMEOUT.c_str(), required_argument, &flag,
8},
{SHRPX_OPT_FRONTEND_HTTP2_WINDOW_BITS.c_str(), required_argument, &flag,
9},
{SHRPX_OPT_PID_FILE.c_str(), required_argument, &flag, 10},
{SHRPX_OPT_USER.c_str(), required_argument, &flag, 11},
{"conf", required_argument, &flag, 12},
{SHRPX_OPT_SYSLOG_FACILITY.c_str(), required_argument, &flag, 14},
{SHRPX_OPT_BACKLOG.c_str(), required_argument, &flag, 15},
{SHRPX_OPT_CIPHERS.c_str(), required_argument, &flag, 16},
{SHRPX_OPT_CLIENT.c_str(), no_argument, &flag, 17},
{SHRPX_OPT_BACKEND_HTTP2_WINDOW_BITS.c_str(), required_argument, &flag,
18},
{SHRPX_OPT_CACERT.c_str(), required_argument, &flag, 19},
{SHRPX_OPT_BACKEND_IPV4.c_str(), no_argument, &flag, 20},
{SHRPX_OPT_BACKEND_IPV6.c_str(), no_argument, &flag, 21},
{SHRPX_OPT_PRIVATE_KEY_PASSWD_FILE.c_str(), required_argument, &flag,
22},
{SHRPX_OPT_NO_VIA.c_str(), no_argument, &flag, 23},
{SHRPX_OPT_SUBCERT.c_str(), required_argument, &flag, 24},
{SHRPX_OPT_HTTP2_BRIDGE.c_str(), no_argument, &flag, 25},
{SHRPX_OPT_BACKEND_HTTP_PROXY_URI.c_str(), required_argument, &flag,
26},
{SHRPX_OPT_BACKEND_NO_TLS.c_str(), no_argument, &flag, 27},
{SHRPX_OPT_FRONTEND_NO_TLS.c_str(), no_argument, &flag, 29},
{SHRPX_OPT_BACKEND_TLS_SNI_FIELD.c_str(), required_argument, &flag, 31},
{SHRPX_OPT_DH_PARAM_FILE.c_str(), required_argument, &flag, 33},
{SHRPX_OPT_READ_RATE.c_str(), required_argument, &flag, 34},
{SHRPX_OPT_READ_BURST.c_str(), required_argument, &flag, 35},
{SHRPX_OPT_WRITE_RATE.c_str(), required_argument, &flag, 36},
{SHRPX_OPT_WRITE_BURST.c_str(), required_argument, &flag, 37},
{SHRPX_OPT_NPN_LIST.c_str(), required_argument, &flag, 38},
{SHRPX_OPT_VERIFY_CLIENT.c_str(), no_argument, &flag, 39},
{SHRPX_OPT_VERIFY_CLIENT_CACERT.c_str(), required_argument, &flag, 40},
{SHRPX_OPT_CLIENT_PRIVATE_KEY_FILE.c_str(), required_argument, &flag,
41},
{SHRPX_OPT_CLIENT_CERT_FILE.c_str(), required_argument, &flag, 42},
{SHRPX_OPT_FRONTEND_HTTP2_DUMP_REQUEST_HEADER.c_str(),
required_argument, &flag, 43},
{SHRPX_OPT_FRONTEND_HTTP2_DUMP_RESPONSE_HEADER.c_str(),
required_argument, &flag, 44},
{SHRPX_OPT_HTTP2_NO_COOKIE_CRUMBLING.c_str(), no_argument, &flag, 45},
{SHRPX_OPT_FRONTEND_HTTP2_CONNECTION_WINDOW_BITS.c_str(),
required_argument, &flag, 46},
{SHRPX_OPT_BACKEND_HTTP2_CONNECTION_WINDOW_BITS.c_str(),
required_argument, &flag, 47},
{SHRPX_OPT_TLS_PROTO_LIST.c_str(), required_argument, &flag, 48},
{SHRPX_OPT_PADDING.c_str(), required_argument, &flag, 49},
{SHRPX_OPT_WORKER_READ_RATE.c_str(), required_argument, &flag, 50},
{SHRPX_OPT_WORKER_READ_BURST.c_str(), required_argument, &flag, 51},
{SHRPX_OPT_WORKER_WRITE_RATE.c_str(), required_argument, &flag, 52},
{SHRPX_OPT_WORKER_WRITE_BURST.c_str(), required_argument, &flag, 53},
{SHRPX_OPT_ALTSVC.c_str(), required_argument, &flag, 54},
{SHRPX_OPT_ADD_RESPONSE_HEADER.c_str(), required_argument, &flag, 55},
{SHRPX_OPT_WORKER_FRONTEND_CONNECTIONS.c_str(), required_argument,
&flag, 56},
{SHRPX_OPT_ACCESSLOG_SYSLOG.c_str(), no_argument, &flag, 57},
{SHRPX_OPT_ERRORLOG_FILE.c_str(), required_argument, &flag, 58},
{SHRPX_OPT_ERRORLOG_SYSLOG.c_str(), no_argument, &flag, 59},
{SHRPX_OPT_STREAM_READ_TIMEOUT.c_str(), required_argument, &flag, 60},
{SHRPX_OPT_STREAM_WRITE_TIMEOUT.c_str(), required_argument, &flag, 61},
{SHRPX_OPT_NO_LOCATION_REWRITE.c_str(), no_argument, &flag, 62},
{SHRPX_OPT_BACKEND_HTTP1_CONNECTIONS_PER_HOST.c_str(),
required_argument, &flag, 63},
{SHRPX_OPT_LISTENER_DISABLE_TIMEOUT.c_str(), required_argument, &flag,
64},
{SHRPX_OPT_STRIP_INCOMING_X_FORWARDED_FOR.c_str(), no_argument, &flag,
65},
{SHRPX_OPT_ACCESSLOG_FORMAT.c_str(), required_argument, &flag, 66},
{SHRPX_OPT_BACKEND_HTTP1_CONNECTIONS_PER_FRONTEND.c_str(),
required_argument, &flag, 67},
{SHRPX_OPT_TLS_TICKET_KEY_FILE.c_str(), required_argument, &flag, 68},
{SHRPX_OPT_RLIMIT_NOFILE.c_str(), required_argument, &flag, 69},
{SHRPX_OPT_BACKEND_RESPONSE_BUFFER.c_str(), required_argument, &flag,
71},
{SHRPX_OPT_BACKEND_REQUEST_BUFFER.c_str(), required_argument, &flag,
72},
{SHRPX_OPT_NO_HOST_REWRITE.c_str(), no_argument, &flag, 73},
{SHRPX_OPT_NO_SERVER_PUSH.c_str(), no_argument, &flag, 74},
{SHRPX_OPT_BACKEND_HTTP2_CONNECTIONS_PER_WORKER.c_str(),
required_argument, &flag, 76},
{SHRPX_OPT_FETCH_OCSP_RESPONSE_FILE.c_str(), required_argument, &flag,
77},
{SHRPX_OPT_OCSP_UPDATE_INTERVAL.c_str(), required_argument, &flag, 78},
{SHRPX_OPT_NO_OCSP.c_str(), no_argument, &flag, 79},
{SHRPX_OPT_HEADER_FIELD_BUFFER.c_str(), required_argument, &flag, 80},
{SHRPX_OPT_MAX_HEADER_FIELDS.c_str(), required_argument, &flag, 81},
{SHRPX_OPT_ADD_REQUEST_HEADER.c_str(), required_argument, &flag, 82},
{SHRPX_OPT_INCLUDE.c_str(), required_argument, &flag, 83},
{SHRPX_OPT_TLS_TICKET_KEY_CIPHER.c_str(), required_argument, &flag, 84},
{SHRPX_OPT_HOST_REWRITE.c_str(), no_argument, &flag, 85},
{SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED.c_str(), required_argument,
&flag, 86},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED.c_str(), required_argument, &flag,
87},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_INTERVAL.c_str(), required_argument,
&flag, 88},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_MAX_RETRY.c_str(),
required_argument, &flag, 89},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_MAX_FAIL.c_str(), required_argument,
&flag, 90},
{SHRPX_OPT_MRUBY_FILE.c_str(), required_argument, &flag, 91},
{SHRPX_OPT_ACCEPT_PROXY_PROTOCOL.c_str(), no_argument, &flag, 93},
{SHRPX_OPT_FASTOPEN.c_str(), required_argument, &flag, 94},
{SHRPX_OPT_TLS_DYN_REC_WARMUP_THRESHOLD.c_str(), required_argument,
&flag, 95},
{SHRPX_OPT_TLS_DYN_REC_IDLE_TIMEOUT.c_str(), required_argument, &flag,
96},
{SHRPX_OPT_ADD_FORWARDED.c_str(), required_argument, &flag, 97},
{SHRPX_OPT_STRIP_INCOMING_FORWARDED.c_str(), no_argument, &flag, 98},
{SHRPX_OPT_FORWARDED_BY.c_str(), required_argument, &flag, 99},
{SHRPX_OPT_FORWARDED_FOR.c_str(), required_argument, &flag, 100},
{SHRPX_OPT_RESPONSE_HEADER_FIELD_BUFFER.c_str(), required_argument,
&flag, 101},
{SHRPX_OPT_MAX_RESPONSE_HEADER_FIELDS.c_str(), required_argument, &flag,
102},
{SHRPX_OPT_NO_HTTP2_CIPHER_BLACK_LIST.c_str(), no_argument, &flag, 103},
{SHRPX_OPT_REQUEST_HEADER_FIELD_BUFFER.c_str(), required_argument,
&flag, 104},
{SHRPX_OPT_MAX_REQUEST_HEADER_FIELDS.c_str(), required_argument, &flag,
105},
{SHRPX_OPT_BACKEND_HTTP1_TLS.c_str(), no_argument, &flag, 106},
{SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_TLS.c_str(), no_argument, &flag,
108},
{SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_CERT_FILE.c_str(),
required_argument, &flag, 109},
{SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_PRIVATE_KEY_FILE.c_str(),
required_argument, &flag, 110},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_TLS.c_str(), no_argument, &flag,
111},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_CERT_FILE.c_str(),
required_argument, &flag, 112},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_PRIVATE_KEY_FILE.c_str(),
required_argument, &flag, 113},
{SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_ADDRESS_FAMILY.c_str(),
required_argument, &flag, 114},
{SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_ADDRESS_FAMILY.c_str(),
required_argument, &flag, 115},
{SHRPX_OPT_BACKEND_ADDRESS_FAMILY.c_str(), required_argument, &flag,
116},
{SHRPX_OPT_FRONTEND_HTTP2_MAX_CONCURRENT_STREAMS.c_str(),
required_argument, &flag, 117},
{SHRPX_OPT_BACKEND_HTTP2_MAX_CONCURRENT_STREAMS.c_str(),
required_argument, &flag, 118},
{SHRPX_OPT_BACKEND_CONNECTIONS_PER_FRONTEND.c_str(), required_argument,
&flag, 119},
{SHRPX_OPT_BACKEND_TLS.c_str(), no_argument, &flag, 120},
{SHRPX_OPT_BACKEND_CONNECTIONS_PER_HOST.c_str(), required_argument,
&flag, 121},
{SHRPX_OPT_ERROR_PAGE.c_str(), required_argument, &flag, 122},
{SHRPX_OPT_NO_KQUEUE.c_str(), no_argument, &flag, 123},
{SHRPX_OPT_FRONTEND_HTTP2_SETTINGS_TIMEOUT.c_str(), required_argument,
&flag, 124},
{SHRPX_OPT_BACKEND_HTTP2_SETTINGS_TIMEOUT.c_str(), required_argument,
&flag, 125},
{SHRPX_OPT_API_MAX_REQUEST_BODY.c_str(), required_argument, &flag, 126},
{SHRPX_OPT_BACKEND_MAX_BACKOFF.c_str(), required_argument, &flag, 127},
{SHRPX_OPT_SERVER_NAME.c_str(), required_argument, &flag, 128},
{SHRPX_OPT_NO_SERVER_REWRITE.c_str(), no_argument, &flag, 129},
{SHRPX_OPT_FRONTEND_HTTP2_OPTIMIZE_WRITE_BUFFER_SIZE.c_str(),
no_argument, &flag, 130},
{SHRPX_OPT_FRONTEND_HTTP2_OPTIMIZE_WINDOW_SIZE.c_str(), no_argument,
&flag, 131},
{SHRPX_OPT_FRONTEND_HTTP2_WINDOW_SIZE.c_str(), required_argument, &flag,
132},
{SHRPX_OPT_FRONTEND_HTTP2_CONNECTION_WINDOW_SIZE.c_str(),
required_argument, &flag, 133},
{SHRPX_OPT_BACKEND_HTTP2_WINDOW_SIZE.c_str(), required_argument, &flag,
134},
{SHRPX_OPT_BACKEND_HTTP2_CONNECTION_WINDOW_SIZE.c_str(),
required_argument, &flag, 135},
{SHRPX_OPT_FRONTEND_HTTP2_ENCODER_DYNAMIC_TABLE_SIZE.c_str(),
required_argument, &flag, 136},
{SHRPX_OPT_FRONTEND_HTTP2_DECODER_DYNAMIC_TABLE_SIZE.c_str(),
required_argument, &flag, 137},
{SHRPX_OPT_BACKEND_HTTP2_ENCODER_DYNAMIC_TABLE_SIZE.c_str(),
required_argument, &flag, 138},
{SHRPX_OPT_BACKEND_HTTP2_DECODER_DYNAMIC_TABLE_SIZE.c_str(),
required_argument, &flag, 139},
{SHRPX_OPT_ECDH_CURVES.c_str(), required_argument, &flag, 140},
{SHRPX_OPT_TLS_SCT_DIR.c_str(), required_argument, &flag, 141},
{SHRPX_OPT_BACKEND_CONNECT_TIMEOUT.c_str(), required_argument, &flag,
142},
{SHRPX_OPT_DNS_CACHE_TIMEOUT.c_str(), required_argument, &flag, 143},
{SHRPX_OPT_DNS_LOOKUP_TIMEOUT.c_str(), required_argument, &flag, 144},
{SHRPX_OPT_DNS_MAX_TRY.c_str(), required_argument, &flag, 145},
{nullptr, 0, nullptr, 0}};
int option_index = 0;
int c = getopt_long(argc, argv, "DL:b:c:f:hkn:opsv", long_options,
&option_index);
if (c == -1) {
break;
}
switch (c) {
case 'D':
cmdcfgs.emplace_back(SHRPX_OPT_DAEMON, StringRef::from_lit("yes"));
break;
case 'L':
cmdcfgs.emplace_back(SHRPX_OPT_LOG_LEVEL, StringRef{optarg});
break;
case 'b':
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND, StringRef{optarg});
break;
case 'c':
cmdcfgs.emplace_back(SHRPX_OPT_HTTP2_MAX_CONCURRENT_STREAMS,
StringRef{optarg});
break;
case 'f':
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND, StringRef{optarg});
break;
case 'h':
print_help(std::cout);
exit(EXIT_SUCCESS);
case 'k':
cmdcfgs.emplace_back(SHRPX_OPT_INSECURE, StringRef::from_lit("yes"));
break;
case 'n':
cmdcfgs.emplace_back(SHRPX_OPT_WORKERS, StringRef{optarg});
break;
case 'o':
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_FRAME_DEBUG,
StringRef::from_lit("yes"));
break;
case 'p':
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_PROXY, StringRef::from_lit("yes"));
break;
case 's':
cmdcfgs.emplace_back(SHRPX_OPT_HTTP2_PROXY, StringRef::from_lit("yes"));
break;
case 'v':
print_version(std::cout);
exit(EXIT_SUCCESS);
case '?':
util::show_candidates(argv[optind - 1], long_options);
exit(EXIT_FAILURE);
case 0:
switch (flag) {
case 1:
// --add-x-forwarded-for
cmdcfgs.emplace_back(SHRPX_OPT_ADD_X_FORWARDED_FOR,
StringRef::from_lit("yes"));
break;
case 2:
// --frontend-http2-read-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_READ_TIMEOUT,
StringRef{optarg});
break;
case 3:
// --frontend-read-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_READ_TIMEOUT,
StringRef{optarg});
break;
case 4:
// --frontend-write-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_WRITE_TIMEOUT,
StringRef{optarg});
break;
case 5:
// --backend-read-timeout
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_READ_TIMEOUT, StringRef{optarg});
break;
case 6:
// --backend-write-timeout
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_WRITE_TIMEOUT,
StringRef{optarg});
break;
case 7:
cmdcfgs.emplace_back(SHRPX_OPT_ACCESSLOG_FILE, StringRef{optarg});
break;
case 8:
// --backend-keep-alive-timeout
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_KEEP_ALIVE_TIMEOUT,
StringRef{optarg});
break;
case 9:
// --frontend-http2-window-bits
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_WINDOW_BITS,
StringRef{optarg});
break;
case 10:
cmdcfgs.emplace_back(SHRPX_OPT_PID_FILE, StringRef{optarg});
break;
case 11:
cmdcfgs.emplace_back(SHRPX_OPT_USER, StringRef{optarg});
break;
case 12:
// --conf
mod_config()->conf_path =
make_string_ref(mod_config()->balloc, StringRef{optarg});
break;
case 14:
// --syslog-facility
cmdcfgs.emplace_back(SHRPX_OPT_SYSLOG_FACILITY, StringRef{optarg});
break;
case 15:
// --backlog
cmdcfgs.emplace_back(SHRPX_OPT_BACKLOG, StringRef{optarg});
break;
case 16:
// --ciphers
cmdcfgs.emplace_back(SHRPX_OPT_CIPHERS, StringRef{optarg});
break;
case 17:
// --client
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT, StringRef::from_lit("yes"));
break;
case 18:
// --backend-http2-window-bits
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_WINDOW_BITS,
StringRef{optarg});
break;
case 19:
// --cacert
cmdcfgs.emplace_back(SHRPX_OPT_CACERT, StringRef{optarg});
break;
case 20:
// --backend-ipv4
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_IPV4,
StringRef::from_lit("yes"));
break;
case 21:
// --backend-ipv6
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_IPV6,
StringRef::from_lit("yes"));
break;
case 22:
// --private-key-passwd-file
cmdcfgs.emplace_back(SHRPX_OPT_PRIVATE_KEY_PASSWD_FILE,
StringRef{optarg});
break;
case 23:
// --no-via
cmdcfgs.emplace_back(SHRPX_OPT_NO_VIA, StringRef::from_lit("yes"));
break;
case 24:
// --subcert
cmdcfgs.emplace_back(SHRPX_OPT_SUBCERT, StringRef{optarg});
break;
case 25:
// --http2-bridge
cmdcfgs.emplace_back(SHRPX_OPT_HTTP2_BRIDGE,
StringRef::from_lit("yes"));
break;
case 26:
// --backend-http-proxy-uri
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP_PROXY_URI,
StringRef{optarg});
break;
case 27:
// --backend-no-tls
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_NO_TLS,
StringRef::from_lit("yes"));
break;
case 29:
// --frontend-no-tls
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_NO_TLS,
StringRef::from_lit("yes"));
break;
case 31:
// --backend-tls-sni-field
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_TLS_SNI_FIELD,
StringRef{optarg});
break;
case 33:
// --dh-param-file
cmdcfgs.emplace_back(SHRPX_OPT_DH_PARAM_FILE, StringRef{optarg});
break;
case 34:
// --read-rate
cmdcfgs.emplace_back(SHRPX_OPT_READ_RATE, StringRef{optarg});
break;
case 35:
// --read-burst
cmdcfgs.emplace_back(SHRPX_OPT_READ_BURST, StringRef{optarg});
break;
case 36:
// --write-rate
cmdcfgs.emplace_back(SHRPX_OPT_WRITE_RATE, StringRef{optarg});
break;
case 37:
// --write-burst
cmdcfgs.emplace_back(SHRPX_OPT_WRITE_BURST, StringRef{optarg});
break;
case 38:
// --npn-list
cmdcfgs.emplace_back(SHRPX_OPT_NPN_LIST, StringRef{optarg});
break;
case 39:
// --verify-client
cmdcfgs.emplace_back(SHRPX_OPT_VERIFY_CLIENT,
StringRef::from_lit("yes"));
break;
case 40:
// --verify-client-cacert
cmdcfgs.emplace_back(SHRPX_OPT_VERIFY_CLIENT_CACERT, StringRef{optarg});
break;
case 41:
// --client-private-key-file
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_PRIVATE_KEY_FILE,
StringRef{optarg});
break;
case 42:
// --client-cert-file
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_CERT_FILE, StringRef{optarg});
break;
case 43:
// --frontend-http2-dump-request-header
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_DUMP_REQUEST_HEADER,
StringRef{optarg});
break;
case 44:
// --frontend-http2-dump-response-header
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_DUMP_RESPONSE_HEADER,
StringRef{optarg});
break;
case 45:
// --http2-no-cookie-crumbling
cmdcfgs.emplace_back(SHRPX_OPT_HTTP2_NO_COOKIE_CRUMBLING,
StringRef::from_lit("yes"));
break;
case 46:
// --frontend-http2-connection-window-bits
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_CONNECTION_WINDOW_BITS,
StringRef{optarg});
break;
case 47:
// --backend-http2-connection-window-bits
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_CONNECTION_WINDOW_BITS,
StringRef{optarg});
break;
case 48:
// --tls-proto-list
cmdcfgs.emplace_back(SHRPX_OPT_TLS_PROTO_LIST, StringRef{optarg});
break;
case 49:
// --padding
cmdcfgs.emplace_back(SHRPX_OPT_PADDING, StringRef{optarg});
break;
case 50:
// --worker-read-rate
cmdcfgs.emplace_back(SHRPX_OPT_WORKER_READ_RATE, StringRef{optarg});
break;
case 51:
// --worker-read-burst
cmdcfgs.emplace_back(SHRPX_OPT_WORKER_READ_BURST, StringRef{optarg});
break;
case 52:
// --worker-write-rate
cmdcfgs.emplace_back(SHRPX_OPT_WORKER_WRITE_RATE, StringRef{optarg});
break;
case 53:
// --worker-write-burst
cmdcfgs.emplace_back(SHRPX_OPT_WORKER_WRITE_BURST, StringRef{optarg});
break;
case 54:
// --altsvc
cmdcfgs.emplace_back(SHRPX_OPT_ALTSVC, StringRef{optarg});
break;
case 55:
// --add-response-header
cmdcfgs.emplace_back(SHRPX_OPT_ADD_RESPONSE_HEADER, StringRef{optarg});
break;
case 56:
// --worker-frontend-connections
cmdcfgs.emplace_back(SHRPX_OPT_WORKER_FRONTEND_CONNECTIONS,
StringRef{optarg});
break;
case 57:
// --accesslog-syslog
cmdcfgs.emplace_back(SHRPX_OPT_ACCESSLOG_SYSLOG,
StringRef::from_lit("yes"));
break;
case 58:
// --errorlog-file
cmdcfgs.emplace_back(SHRPX_OPT_ERRORLOG_FILE, StringRef{optarg});
break;
case 59:
// --errorlog-syslog
cmdcfgs.emplace_back(SHRPX_OPT_ERRORLOG_SYSLOG,
StringRef::from_lit("yes"));
break;
case 60:
// --stream-read-timeout
cmdcfgs.emplace_back(SHRPX_OPT_STREAM_READ_TIMEOUT, StringRef{optarg});
break;
case 61:
// --stream-write-timeout
cmdcfgs.emplace_back(SHRPX_OPT_STREAM_WRITE_TIMEOUT, StringRef{optarg});
break;
case 62:
// --no-location-rewrite
cmdcfgs.emplace_back(SHRPX_OPT_NO_LOCATION_REWRITE,
StringRef::from_lit("yes"));
break;
case 63:
// --backend-http1-connections-per-host
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP1_CONNECTIONS_PER_HOST,
StringRef{optarg});
break;
case 64:
// --listener-disable-timeout
cmdcfgs.emplace_back(SHRPX_OPT_LISTENER_DISABLE_TIMEOUT,
StringRef{optarg});
break;
case 65:
// --strip-incoming-x-forwarded-for
cmdcfgs.emplace_back(SHRPX_OPT_STRIP_INCOMING_X_FORWARDED_FOR,
StringRef::from_lit("yes"));
break;
case 66:
// --accesslog-format
cmdcfgs.emplace_back(SHRPX_OPT_ACCESSLOG_FORMAT, StringRef{optarg});
break;
case 67:
// --backend-http1-connections-per-frontend
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP1_CONNECTIONS_PER_FRONTEND,
StringRef{optarg});
break;
case 68:
// --tls-ticket-key-file
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_FILE, StringRef{optarg});
break;
case 69:
// --rlimit-nofile
cmdcfgs.emplace_back(SHRPX_OPT_RLIMIT_NOFILE, StringRef{optarg});
break;
case 71:
// --backend-response-buffer
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_RESPONSE_BUFFER,
StringRef{optarg});
break;
case 72:
// --backend-request-buffer
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_REQUEST_BUFFER,
StringRef{optarg});
break;
case 73:
// --no-host-rewrite
cmdcfgs.emplace_back(SHRPX_OPT_NO_HOST_REWRITE,
StringRef::from_lit("yes"));
break;
case 74:
// --no-server-push
cmdcfgs.emplace_back(SHRPX_OPT_NO_SERVER_PUSH,
StringRef::from_lit("yes"));
break;
case 76:
// --backend-http2-connections-per-worker
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_CONNECTIONS_PER_WORKER,
StringRef{optarg});
break;
case 77:
// --fetch-ocsp-response-file
cmdcfgs.emplace_back(SHRPX_OPT_FETCH_OCSP_RESPONSE_FILE,
StringRef{optarg});
break;
case 78:
// --ocsp-update-interval
cmdcfgs.emplace_back(SHRPX_OPT_OCSP_UPDATE_INTERVAL, StringRef{optarg});
break;
case 79:
// --no-ocsp
cmdcfgs.emplace_back(SHRPX_OPT_NO_OCSP, StringRef::from_lit("yes"));
break;
case 80:
// --header-field-buffer
cmdcfgs.emplace_back(SHRPX_OPT_HEADER_FIELD_BUFFER, StringRef{optarg});
break;
case 81:
// --max-header-fields
cmdcfgs.emplace_back(SHRPX_OPT_MAX_HEADER_FIELDS, StringRef{optarg});
break;
case 82:
// --add-request-header
cmdcfgs.emplace_back(SHRPX_OPT_ADD_REQUEST_HEADER, StringRef{optarg});
break;
case 83:
// --include
cmdcfgs.emplace_back(SHRPX_OPT_INCLUDE, StringRef{optarg});
break;
case 84:
// --tls-ticket-key-cipher
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_CIPHER,
StringRef{optarg});
break;
case 85:
// --host-rewrite
cmdcfgs.emplace_back(SHRPX_OPT_HOST_REWRITE,
StringRef::from_lit("yes"));
break;
case 86:
// --tls-session-cache-memcached
cmdcfgs.emplace_back(SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED,
StringRef{optarg});
break;
case 87:
// --tls-ticket-key-memcached
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED,
StringRef{optarg});
break;
case 88:
// --tls-ticket-key-memcached-interval
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_INTERVAL,
StringRef{optarg});
break;
case 89:
// --tls-ticket-key-memcached-max-retry
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_MAX_RETRY,
StringRef{optarg});
break;
case 90:
// --tls-ticket-key-memcached-max-fail
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_MAX_FAIL,
StringRef{optarg});
break;
case 91:
// --mruby-file
cmdcfgs.emplace_back(SHRPX_OPT_MRUBY_FILE, StringRef{optarg});
break;
case 93:
// --accept-proxy-protocol
cmdcfgs.emplace_back(SHRPX_OPT_ACCEPT_PROXY_PROTOCOL,
StringRef::from_lit("yes"));
break;
case 94:
// --fastopen
cmdcfgs.emplace_back(SHRPX_OPT_FASTOPEN, StringRef{optarg});
break;
case 95:
// --tls-dyn-rec-warmup-threshold
cmdcfgs.emplace_back(SHRPX_OPT_TLS_DYN_REC_WARMUP_THRESHOLD,
StringRef{optarg});
break;
case 96:
// --tls-dyn-rec-idle-timeout
cmdcfgs.emplace_back(SHRPX_OPT_TLS_DYN_REC_IDLE_TIMEOUT,
StringRef{optarg});
break;
case 97:
// --add-forwarded
cmdcfgs.emplace_back(SHRPX_OPT_ADD_FORWARDED, StringRef{optarg});
break;
case 98:
// --strip-incoming-forwarded
cmdcfgs.emplace_back(SHRPX_OPT_STRIP_INCOMING_FORWARDED,
StringRef::from_lit("yes"));
break;
case 99:
// --forwarded-by
cmdcfgs.emplace_back(SHRPX_OPT_FORWARDED_BY, StringRef{optarg});
break;
case 100:
// --forwarded-for
cmdcfgs.emplace_back(SHRPX_OPT_FORWARDED_FOR, StringRef{optarg});
break;
case 101:
// --response-header-field-buffer
cmdcfgs.emplace_back(SHRPX_OPT_RESPONSE_HEADER_FIELD_BUFFER,
StringRef{optarg});
break;
case 102:
// --max-response-header-fields
cmdcfgs.emplace_back(SHRPX_OPT_MAX_RESPONSE_HEADER_FIELDS,
StringRef{optarg});
break;
case 103:
// --no-http2-cipher-black-list
cmdcfgs.emplace_back(SHRPX_OPT_NO_HTTP2_CIPHER_BLACK_LIST,
StringRef::from_lit("yes"));
break;
case 104:
// --request-header-field-buffer
cmdcfgs.emplace_back(SHRPX_OPT_REQUEST_HEADER_FIELD_BUFFER,
StringRef{optarg});
break;
case 105:
// --max-request-header-fields
cmdcfgs.emplace_back(SHRPX_OPT_MAX_REQUEST_HEADER_FIELDS,
StringRef{optarg});
break;
case 106:
// --backend-http1-tls
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP1_TLS,
StringRef::from_lit("yes"));
break;
case 108:
// --tls-session-cache-memcached-tls
cmdcfgs.emplace_back(SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_TLS,
StringRef::from_lit("yes"));
break;
case 109:
// --tls-session-cache-memcached-cert-file
cmdcfgs.emplace_back(SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_CERT_FILE,
StringRef{optarg});
break;
case 110:
// --tls-session-cache-memcached-private-key-file
cmdcfgs.emplace_back(
SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_PRIVATE_KEY_FILE,
StringRef{optarg});
break;
case 111:
// --tls-ticket-key-memcached-tls
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_TLS,
StringRef::from_lit("yes"));
break;
case 112:
// --tls-ticket-key-memcached-cert-file
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_CERT_FILE,
StringRef{optarg});
break;
case 113:
// --tls-ticket-key-memcached-private-key-file
cmdcfgs.emplace_back(
SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_PRIVATE_KEY_FILE,
StringRef{optarg});
break;
case 114:
// --tls-ticket-key-memcached-address-family
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_KEY_MEMCACHED_ADDRESS_FAMILY,
StringRef{optarg});
break;
case 115:
// --tls-session-cache-memcached-address-family
cmdcfgs.emplace_back(
SHRPX_OPT_TLS_SESSION_CACHE_MEMCACHED_ADDRESS_FAMILY,
StringRef{optarg});
break;
case 116:
// --backend-address-family
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_ADDRESS_FAMILY,
StringRef{optarg});
break;
case 117:
// --frontend-http2-max-concurrent-streams
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_MAX_CONCURRENT_STREAMS,
StringRef{optarg});
break;
case 118:
// --backend-http2-max-concurrent-streams
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_MAX_CONCURRENT_STREAMS,
StringRef{optarg});
break;
case 119:
// --backend-connections-per-frontend
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_CONNECTIONS_PER_FRONTEND,
StringRef{optarg});
break;
case 120:
// --backend-tls
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_TLS, StringRef::from_lit("yes"));
break;
case 121:
// --backend-connections-per-host
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_CONNECTIONS_PER_HOST,
StringRef{optarg});
break;
case 122:
// --error-page
cmdcfgs.emplace_back(SHRPX_OPT_ERROR_PAGE, StringRef{optarg});
break;
case 123:
// --no-kqueue
cmdcfgs.emplace_back(SHRPX_OPT_NO_KQUEUE, StringRef::from_lit("yes"));
break;
case 124:
// --frontend-http2-settings-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_SETTINGS_TIMEOUT,
StringRef{optarg});
break;
case 125:
// --backend-http2-settings-timeout
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_SETTINGS_TIMEOUT,
StringRef{optarg});
break;
case 126:
// --api-max-request-body
cmdcfgs.emplace_back(SHRPX_OPT_API_MAX_REQUEST_BODY, StringRef{optarg});
break;
case 127:
// --backend-max-backoff
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_MAX_BACKOFF, StringRef{optarg});
break;
case 128:
// --server-name
cmdcfgs.emplace_back(SHRPX_OPT_SERVER_NAME, StringRef{optarg});
break;
case 129:
// --no-server-rewrite
cmdcfgs.emplace_back(SHRPX_OPT_NO_SERVER_REWRITE,
StringRef::from_lit("yes"));
break;
case 130:
// --frontend-http2-optimize-write-buffer-size
cmdcfgs.emplace_back(
SHRPX_OPT_FRONTEND_HTTP2_OPTIMIZE_WRITE_BUFFER_SIZE,
StringRef::from_lit("yes"));
break;
case 131:
// --frontend-http2-optimize-window-size
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_OPTIMIZE_WINDOW_SIZE,
StringRef::from_lit("yes"));
break;
case 132:
// --frontend-http2-window-size
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_WINDOW_SIZE,
StringRef{optarg});
break;
case 133:
// --frontend-http2-connection-window-size
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP2_CONNECTION_WINDOW_SIZE,
StringRef{optarg});
break;
case 134:
// --backend-http2-window-size
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_WINDOW_SIZE,
StringRef{optarg});
break;
case 135:
// --backend-http2-connection-window-size
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_CONNECTION_WINDOW_SIZE,
StringRef{optarg});
break;
case 136:
// --frontend-http2-encoder-dynamic-table-size
cmdcfgs.emplace_back(
SHRPX_OPT_FRONTEND_HTTP2_ENCODER_DYNAMIC_TABLE_SIZE,
StringRef{optarg});
break;
case 137:
// --frontend-http2-decoder-dynamic-table-size
cmdcfgs.emplace_back(
SHRPX_OPT_FRONTEND_HTTP2_DECODER_DYNAMIC_TABLE_SIZE,
StringRef{optarg});
break;
case 138:
// --backend-http2-encoder-dynamic-table-size
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_ENCODER_DYNAMIC_TABLE_SIZE,
StringRef{optarg});
break;
case 139:
// --backend-http2-decoder-dynamic-table-size
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_HTTP2_DECODER_DYNAMIC_TABLE_SIZE,
StringRef{optarg});
break;
case 140:
// --ecdh-curves
cmdcfgs.emplace_back(SHRPX_OPT_ECDH_CURVES, StringRef{optarg});
break;
case 141:
// --tls-sct-dir
cmdcfgs.emplace_back(SHRPX_OPT_TLS_SCT_DIR, StringRef{optarg});
break;
case 142:
// --backend-connect-timeout
cmdcfgs.emplace_back(SHRPX_OPT_BACKEND_CONNECT_TIMEOUT,
StringRef{optarg});
break;
case 143:
// --dns-cache-timeout
cmdcfgs.emplace_back(SHRPX_OPT_DNS_CACHE_TIMEOUT, StringRef{optarg});
break;
case 144:
// --dns-lookup-timeou
cmdcfgs.emplace_back(SHRPX_OPT_DNS_LOOKUP_TIMEOUT, StringRef{optarg});
break;
case 145:
// --dns-max-try
cmdcfgs.emplace_back(SHRPX_OPT_DNS_MAX_TRY, StringRef{optarg});
break;
default:
break;
}
break;
default:
break;
}
}
if (argc - optind >= 2) {
cmdcfgs.emplace_back(SHRPX_OPT_PRIVATE_KEY_FILE, StringRef{argv[optind++]});
cmdcfgs.emplace_back(SHRPX_OPT_CERTIFICATE_FILE, StringRef{argv[optind++]});
}
rv = process_options(mod_config(), cmdcfgs);
if (rv != 0) {
return -1;
}
if (event_loop() != 0) {
return -1;
}
LOG(NOTICE) << "Shutdown momentarily";
delete_log_config();
return 0;
}
} // namespace shrpx
int main(int argc, char **argv) { return run_app(shrpx::main, argc, argv); }
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