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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>
#ifdef HAVE_LIBSYSTEMD
# include <systemd/sd-daemon.h>
#endif // HAVE_LIBSYSTEMD
#ifdef HAVE_LIBBPF
# include <bpf/libbpf.h>
#endif // HAVE_LIBBPF
#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 <openssl/rand.h>
#include <ev.h>
#include <nghttp2/nghttp2.h>
#ifdef ENABLE_HTTP3
# include <ngtcp2/ngtcp2.h>
# include <nghttp3/nghttp3.h>
#endif // ENABLE_HTTP3
#include "shrpx_config.h"
#include "shrpx_tls.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 "shrpx_log.h"
#include "shrpx_http.h"
#include "util.h"
#include "app_helper.h"
#include "tls.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_");
// This environment variable contains PID of the original main
// process, assuming that it created this main process as a result of
// SIGUSR2. The new main process is expected to send QUIT signal to
// the original main process to shut it down gracefully.
constexpr auto ENV_ORIG_PID = StringRef::from_lit("NGHTTPX_ORIG_PID");
// Prefix of environment variables to tell new binary the QUIC IPC
// file descriptor and CID prefix of the lingering worker process.
// The value must be comma separated parameters:
// <FD>,<CID_PREFIX_0>,<CID_PREFIX_1>,... <FD> is the file
// descriptor. <CID_PREFIX_I> is the I-th CID prefix in hex encoded
// string.
constexpr auto ENV_QUIC_WORKER_PROCESS_PREFIX =
StringRef::from_lit("NGHTTPX_QUIC_WORKER_PROCESS_");
#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 {
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
#ifdef ENABLE_HTTP3
,
int quic_ipc_fd,
const std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>>
&cid_prefixes
#endif // ENABLE_HTTP3
)
: loop(loop),
worker_pid(worker_pid),
ipc_fd(ipc_fd),
termination_deadline(0.)
#ifdef ENABLE_HTTP3
,
quic_ipc_fd(quic_ipc_fd),
cid_prefixes(cid_prefixes)
#endif // ENABLE_HTTP3
{
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);
#ifdef ENABLE_HTTP3
if (quic_ipc_fd != -1) {
close(quic_ipc_fd);
}
#endif // ENABLE_HTTP3
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;
ev_tstamp termination_deadline;
#ifdef ENABLE_HTTP3
int quic_ipc_fd;
std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>> cid_prefixes;
#endif // ENABLE_HTTP3
};
namespace {
void reload_config(WorkerProcess *wp);
} // namespace
namespace {
std::deque<std::unique_ptr<WorkerProcess>> worker_processes;
} // namespace
namespace {
ev_timer worker_process_grace_period_timer;
} // namespace
namespace {
void worker_process_grace_period_timercb(struct ev_loop *loop, ev_timer *w,
int revents) {
auto now = ev_now(loop);
ev_tstamp next_repeat = 0.;
for (auto it = std::begin(worker_processes);
it != std::end(worker_processes);) {
auto &wp = *it;
if (!(wp->termination_deadline > 0.)) {
++it;
continue;
}
auto d = wp->termination_deadline - now;
if (d > 0) {
if (!(next_repeat > 0.) || d < next_repeat) {
next_repeat = d;
}
++it;
continue;
}
LOG(NOTICE) << "Deleting worker process pid=" << wp->worker_pid
<< " because its grace shutdown period is over";
it = worker_processes.erase(it);
}
if (next_repeat > 0.) {
w->repeat = next_repeat;
ev_timer_again(loop, w);
return;
}
ev_timer_stop(loop, w);
}
} // namespace
namespace {
void worker_process_set_termination_deadline(WorkerProcess *wp,
struct ev_loop *loop) {
auto config = get_config();
if (!(config->worker_process_grace_shutdown_period > 0.)) {
return;
}
wp->termination_deadline =
ev_now(loop) + config->worker_process_grace_shutdown_period;
if (!ev_is_active(&worker_process_grace_period_timer)) {
worker_process_grace_period_timer.repeat =
config->worker_process_grace_shutdown_period;
ev_timer_again(loop, &worker_process_grace_period_timer);
}
}
} // 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, struct ev_loop *loop) {
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);
if (worker_processes.empty()) {
ev_timer_stop(loop, &worker_process_grace_period_timer);
}
break;
}
}
} // namespace
namespace {
void worker_process_adjust_limit() {
auto config = get_config();
if (config->max_worker_processes &&
worker_processes.size() > config->max_worker_processes) {
worker_processes.pop_front();
}
}
} // namespace
namespace {
void worker_process_remove_all(struct ev_loop *loop) {
std::deque<std::unique_ptr<WorkerProcess>>().swap(worker_processes);
ev_timer_stop(loop, &worker_process_grace_period_timer);
}
} // namespace
namespace {
// Send signal |signum| to all worker processes, and clears
// worker_processes.
void worker_process_kill(int signum, struct ev_loop *loop) {
for (auto &s : worker_processes) {
if (s->worker_pid == -1) {
continue;
}
kill(s->worker_pid, signum);
}
worker_process_remove_all(loop);
}
} // 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 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 = std::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(pid_file.c_str(), config->uid, config->gid) == -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 shrpx_sd_notifyf(int unset_environment, const char *format, ...) {
#ifdef HAVE_LIBSYSTEMD
va_list args;
va_start(args, format);
sd_notifyf(unset_environment, format, va_arg(args, char *));
va_end(args);
#endif // HAVE_LIBSYSTEMD
}
} // namespace
namespace {
void exec_binary() {
int rv;
sigset_t oldset;
std::array<char, STRERROR_BUFSIZE> errbuf;
LOG(NOTICE) << "Executing new binary";
shrpx_sd_notifyf(0, "RELOADING=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());
return;
}
auto pid = fork();
if (pid != 0) {
if (pid == -1) {
auto error = errno;
LOG(ERROR) << "fork() failed errno=" << error;
} else {
// update PID tracking information in systemd
shrpx_sd_notifyf(0, "MAINPID=%d\n", pid);
}
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_main_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());
nghttp2_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";
nghttp2_Exit(EXIT_FAILURE);
}
auto argv = std::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 config = get_config();
auto &listenerconf = config->conn.listener;
// 2 for ENV_ORIG_PID and terminal nullptr.
auto envp = std::make_unique<char *[]>(envlen + listenerconf.addrs.size() +
worker_processes.size() + 2);
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());
}
auto ipc_fd_str = ENV_ORIG_PID.str();
ipc_fd_str += '=';
ipc_fd_str += util::utos(config->pid);
envp[envidx++] = const_cast<char *>(ipc_fd_str.c_str());
#ifdef ENABLE_HTTP3
std::vector<ImmutableString> quic_lwps;
for (size_t i = 0; i < worker_processes.size(); ++i) {
auto &wp = worker_processes[i];
auto s = ENV_QUIC_WORKER_PROCESS_PREFIX.str();
s += util::utos(i + 1);
s += '=';
s += util::utos(wp->quic_ipc_fd);
for (auto &cid_prefix : wp->cid_prefixes) {
s += ',';
s += util::format_hex(cid_prefix);
}
quic_lwps.emplace_back(s);
envp[envidx++] = const_cast<char *>(quic_lwps.back().c_str());
}
#endif // ENABLE_HTTP3
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) ||
util::starts_with(env, ENV_ORIG_PID) ||
util::starts_with(env, ENV_QUIC_WORKER_PROCESS_PREFIX)) {
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
restore_original_fds();
// reloading finished
shrpx_sd_notifyf(0, "READY=1");
if (execve(argv[0], argv.get(), envp.get()) == -1) {
auto error = errno;
LOG(ERROR) << "execve failed: errno=" << error;
nghttp2_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: main process";
auto config = get_config();
auto &loggingconf = config->logging;
(void)reopen_log_files(loggingconf);
redirect_stderr_to_errorlog(loggingconf);
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: {
auto &listenerconf = get_config()->conn.listener;
for (auto &addr : listenerconf.addrs) {
close(addr.fd);
}
ipc_send(wp, SHRPX_IPC_GRACEFUL_SHUTDOWN);
worker_process_set_termination_deadline(wp, loop);
return;
}
case RELOAD_SIGNAL:
reload_config(wp);
return;
default:
worker_process_kill(w->signum, loop);
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, loop);
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(FATAL) << "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(FATAL) << "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(FATAL) << "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);
#ifdef AI_ADDRCONFIG
if (rv != 0) {
// Retry without AI_ADDRCONFIG
hints.ai_flags &= ~AI_ADDRCONFIG;
rv = getaddrinfo(node, service.c_str(), &hints, &res);
}
#endif // AI_ADDRCONFIG
if (rv != 0) {
LOG(FATAL) << "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(FATAL) << "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 (const 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 {
// Returns the PID of the original main process from environment
// variable ENV_ORIG_PID.
pid_t get_orig_pid_from_env() {
auto s = getenv(ENV_ORIG_PID.c_str());
if (s == nullptr) {
return -1;
}
return util::parse_uint(s);
}
} // namespace
#ifdef ENABLE_HTTP3
namespace {
std::vector<QUICLingeringWorkerProcess>
inherited_quic_lingering_worker_processes;
} // namespace
namespace {
std::vector<QUICLingeringWorkerProcess>
get_inherited_quic_lingering_worker_process_from_env() {
std::vector<QUICLingeringWorkerProcess> iwps;
for (size_t i = 1;; ++i) {
auto name = ENV_QUIC_WORKER_PROCESS_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 envend = env + strlen(env);
auto end_fd = std::find(env, envend, ',');
if (end_fd == envend) {
continue;
}
auto fd =
util::parse_uint(reinterpret_cast<const uint8_t *>(env), end_fd - env);
if (fd == -1) {
LOG(WARN) << "Could not parse file descriptor from "
<< StringRef{env, static_cast<size_t>(end_fd - env)};
continue;
}
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "Inherit worker process QUIC IPC socket fd=" << fd;
}
util::make_socket_closeonexec(fd);
std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>> cid_prefixes;
auto p = end_fd + 1;
for (;;) {
auto end = std::find(p, envend, ',');
auto hex_cid_prefix = StringRef{p, end};
if (hex_cid_prefix.size() != SHRPX_QUIC_CID_PREFIXLEN * 2 ||
!util::is_hex_string(hex_cid_prefix)) {
LOG(WARN) << "Found invalid CID prefix=" << hex_cid_prefix;
break;
}
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "Inherit worker process CID prefix=" << hex_cid_prefix;
}
cid_prefixes.emplace_back();
util::decode_hex(std::begin(cid_prefixes.back()), hex_cid_prefix);
if (end == envend) {
break;
}
p = end + 1;
}
iwps.emplace_back(std::move(cid_prefixes), fd);
}
return iwps;
}
} // namespace
#endif // ENABLE_HTTP3
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(addr.host.c_str(), config->uid, config->gid) == -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
# ifdef HAVE_LIBSYSTEMD
if (sd_booted() && (getenv("NOTIFY_SOCKET") != nullptr)) {
LOG(NOTICE) << "Daemonising disabled under systemd";
chdir("/");
return 0;
}
# endif // HAVE_LIBSYSTEMD
return util::daemonize(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
#ifdef ENABLE_HTTP3
namespace {
int create_quic_ipc_socket(std::array<int, 2> &quic_ipc_fd) {
std::array<char, STRERROR_BUFSIZE> errbuf;
int rv;
rv = socketpair(AF_UNIX, SOCK_DGRAM, 0, quic_ipc_fd.data());
if (rv == -1) {
auto error = errno;
LOG(WARN) << "Failed to create socket pair to communicate worker process: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
return -1;
}
for (auto fd : quic_ipc_fd) {
util::make_socket_nonblocking(fd);
}
return 0;
}
} // namespace
namespace {
int generate_cid_prefix(
std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>> &cid_prefixes,
const Config *config) {
auto &apiconf = config->api;
auto &quicconf = config->quic;
size_t num_cid_prefix;
if (config->single_thread) {
num_cid_prefix = 1;
} else {
num_cid_prefix = config->num_worker;
// API endpoint occupies the one dedicated worker thread.
// Although such worker never gets QUIC traffic, we create CID
// prefix for it to make code a bit simpler.
if (apiconf.enabled) {
++num_cid_prefix;
}
}
cid_prefixes.resize(num_cid_prefix);
for (auto &cid_prefix : cid_prefixes) {
if (create_cid_prefix(cid_prefix.data(), quicconf.server_id.data()) != 0) {
return -1;
}
}
return 0;
}
} // namespace
namespace {
std::vector<QUICLingeringWorkerProcess>
collect_quic_lingering_worker_processes() {
std::vector<QUICLingeringWorkerProcess> quic_lwps{
std::begin(inherited_quic_lingering_worker_processes),
std::end(inherited_quic_lingering_worker_processes)};
for (auto &wp : worker_processes) {
quic_lwps.emplace_back(wp->cid_prefixes, wp->quic_ipc_fd);
}
return quic_lwps;
}
} // namespace
#endif // ENABLE_HTTP3
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
#ifdef ENABLE_HTTP3
,
int &wp_quic_ipc_fd
#endif // ENABLE_HTTP3
,
const std::vector<InheritedAddr> &iaddrs
#ifdef ENABLE_HTTP3
,
const std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>>
&cid_prefixes,
const std::vector<QUICLingeringWorkerProcess> &quic_lwps
#endif // ENABLE_HTTP3
) {
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;
}
#ifdef ENABLE_HTTP3
std::array<int, 2> quic_ipc_fd;
rv = create_quic_ipc_socket(quic_ipc_fd);
if (rv != 0) {
return -1;
}
#endif // ENABLE_HTTP3
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 config = get_config();
pid_t pid = 0;
if (!config->single_process) {
pid = fork();
}
if (pid == 0) {
ev_loop_fork(EV_DEFAULT);
for (auto &addr : config->conn.listener.addrs) {
util::make_socket_closeonexec(addr.fd);
}
#ifdef ENABLE_HTTP3
util::make_socket_closeonexec(quic_ipc_fd[0]);
for (auto &lwp : quic_lwps) {
util::make_socket_closeonexec(lwp.quic_ipc_fd);
}
for (auto &wp : worker_processes) {
util::make_socket_closeonexec(wp->quic_ipc_fd);
// Do not close quic_ipc_fd.
wp->quic_ipc_fd = -1;
}
#endif // ENABLE_HTTP3
// Remove all WorkerProcesses to stop any registered watcher on
// default loop.
worker_process_remove_all(EV_DEFAULT);
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());
if (config->single_process) {
exit(EXIT_FAILURE);
} else {
nghttp2_Exit(EXIT_FAILURE);
}
}
if (!config->single_process) {
close(ipc_fd[1]);
#ifdef ENABLE_HTTP3
close(quic_ipc_fd[1]);
#endif // ENABLE_HTTP3
}
WorkerProcessConfig wpconf{
.ipc_fd = ipc_fd[0],
#ifdef ENABLE_HTTP3
.cid_prefixes = cid_prefixes,
.quic_ipc_fd = quic_ipc_fd[0],
.quic_lingering_worker_processes = quic_lwps,
#endif // ENABLE_HTTP3
};
rv = worker_process_event_loop(&wpconf);
if (rv != 0) {
LOG(FATAL) << "Worker process returned error";
if (config->single_process) {
exit(EXIT_FAILURE);
} else {
nghttp2_Exit(EXIT_FAILURE);
}
}
LOG(NOTICE) << "Worker process shutting down momentarily";
// call exit(...) instead of nghttp2_Exit to get leak sanitizer report
if (config->single_process) {
exit(EXIT_SUCCESS);
} else {
nghttp2_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]);
#ifdef ENABLE_HTTP3
close(quic_ipc_fd[0]);
close(quic_ipc_fd[1]);
#endif // ENABLE_HTTP3
return -1;
}
close(ipc_fd[0]);
#ifdef ENABLE_HTTP3
close(quic_ipc_fd[0]);
#endif // ENABLE_HTTP3
main_ipc_fd = ipc_fd[1];
#ifdef ENABLE_HTTP3
wp_quic_ipc_fd = quic_ipc_fd[1];
#endif // ENABLE_HTTP3
LOG(NOTICE) << "Worker process [" << pid << "] spawned";
return pid;
}
} // namespace
namespace {
int event_loop() {
std::array<char, STRERROR_BUFSIZE> errbuf;
shrpx_signal_set_main_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(config->logging);
}
// update systemd PID tracking
shrpx_sd_notifyf(0, "MAINPID=%d\n", config->pid);
{
auto iaddrs = get_inherited_addr_from_env(config);
if (create_acceptor_socket(config, iaddrs) != 0) {
return -1;
}
close_unused_inherited_addr(iaddrs);
}
auto orig_pid = get_orig_pid_from_env();
#ifdef ENABLE_HTTP3
inherited_quic_lingering_worker_processes =
get_inherited_quic_lingering_worker_process_from_env();
#endif // ENABLE_HTTP3
auto loop = ev_default_loop(config->ev_loop_flags);
int ipc_fd = 0;
#ifdef ENABLE_HTTP3
int quic_ipc_fd = 0;
auto quic_lwps = collect_quic_lingering_worker_processes();
std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>> cid_prefixes;
if (generate_cid_prefix(cid_prefixes, config) != 0) {
return -1;
}
#endif // ENABLE_HTTP3
auto pid = fork_worker_process(ipc_fd
#ifdef ENABLE_HTTP3
,
quic_ipc_fd
#endif // ENABLE_HTTP3
,
{}
#ifdef ENABLE_HTTP3
,
cid_prefixes, quic_lwps
#endif // ENABLE_HTTP3
);
if (pid == -1) {
return -1;
}
ev_timer_init(&worker_process_grace_period_timer,
worker_process_grace_period_timercb, 0., 0.);
worker_process_add(std::make_unique<WorkerProcess>(loop, pid, ipc_fd
#ifdef ENABLE_HTTP3
,
quic_ipc_fd, cid_prefixes
#endif // ENABLE_HTTP3
));
// 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();
}
// ready to serve requests
shrpx_sd_notifyf(0, "READY=1");
if (orig_pid != -1) {
LOG(NOTICE) << "Send QUIT signal to the original main process to tell "
"that we are ready to serve requests.";
kill(orig_pid, SIGQUIT);
}
ev_run(loop, 0);
ev_timer_stop(loop, &worker_process_grace_period_timer);
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,http/1.1");
} // namespace
namespace {
constexpr auto DEFAULT_TLS_MIN_PROTO_VERSION = StringRef::from_lit("TLSv1.2");
#ifdef TLS1_3_VERSION
constexpr auto DEFAULT_TLS_MAX_PROTO_VERSION = StringRef::from_lit("TLSv1.3");
#else // !TLS1_3_VERSION
constexpr auto DEFAULT_TLS_MAX_PROTO_VERSION = StringRef::from_lit("TLSv1.2");
#endif // !TLS1_3_VERSION
} // 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();
#ifdef NOTHREADS
config->single_thread = true;
#endif // NOTHREADS
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);
tlsconf.ciphers = StringRef::from_lit(nghttp2::tls::DEFAULT_CIPHER_LIST);
tlsconf.tls13_ciphers =
StringRef::from_lit(nghttp2::tls::DEFAULT_TLS13_CIPHER_LIST);
tlsconf.client.ciphers =
StringRef::from_lit(nghttp2::tls::DEFAULT_CIPHER_LIST);
tlsconf.client.tls13_ciphers =
StringRef::from_lit(nghttp2::tls::DEFAULT_TLS13_CIPHER_LIST);
tlsconf.min_proto_version =
tls::proto_version_from_string(DEFAULT_TLS_MIN_PROTO_VERSION);
tlsconf.max_proto_version =
tls::proto_version_from_string(DEFAULT_TLS_MAX_PROTO_VERSION);
tlsconf.max_early_data = 16_k;
#if OPENSSL_1_1_API || defined(OPENSSL_IS_BORINGSSL)
tlsconf.ecdh_curves = StringRef::from_lit("X25519:P-256:P-384:P-521");
#else // !OPENSSL_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
tlsconf.ecdh_curves = StringRef::from_lit("P-256:P-384:P-521");
#endif // !OPENSSL_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
auto &httpconf = config->http;
httpconf.server_name = StringRef::from_lit("nghttpx");
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;
httpconf.redirect_https_port = StringRef::from_lit("443");
httpconf.max_requests = std::numeric_limits<size_t>::max();
httpconf.xfp.add = true;
httpconf.xfp.strip_incoming = true;
httpconf.early_data.strip_incoming = true;
auto &http2conf = config->http2;
{
auto &upstreamconf = http2conf.upstream;
{
auto &timeoutconf = upstreamconf.timeout;
timeoutconf.settings = 10_s;
}
// window size for HTTP/2 upstream connection per stream. 2**16-1
// = 64KiB-1, which is HTTP/2 default.
upstreamconf.window_size = 64_k - 1;
// HTTP/2 has connection-level flow control. The default window
// size for HTTP/2 is 64KiB - 1.
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);
nghttp2_option_set_server_fallback_rfc7540_priorities(upstreamconf.option,
1);
nghttp2_option_set_builtin_recv_extension_type(upstreamconf.option,
NGHTTP2_PRIORITY_UPDATE);
// 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);
}
http2conf.timeout.stream_write = 1_min;
{
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);
}
#ifdef ENABLE_HTTP3
auto &quicconf = config->quic;
{
auto &upstreamconf = quicconf.upstream;
{
auto &timeoutconf = upstreamconf.timeout;
timeoutconf.idle = 30_s;
}
auto &bpfconf = quicconf.bpf;
bpfconf.prog_file = StringRef::from_lit(PKGLIBDIR "/reuseport_kern.o");
upstreamconf.congestion_controller = NGTCP2_CC_ALGO_CUBIC;
upstreamconf.initial_rtt =
static_cast<ev_tstamp>(NGTCP2_DEFAULT_INITIAL_RTT) / NGTCP2_SECONDS;
}
if (RAND_bytes(quicconf.server_id.data(), quicconf.server_id.size()) != 1) {
assert(0);
abort();
}
auto &http3conf = config->http3;
{
auto &upstreamconf = http3conf.upstream;
upstreamconf.max_concurrent_streams = 100;
upstreamconf.window_size = 256_k;
upstreamconf.connection_window_size = 1_m;
upstreamconf.max_window_size = 6_m;
upstreamconf.max_connection_window_size = 8_m;
}
#endif // ENABLE_HTTP3
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;
loggingconf.severity = NOTICE;
auto &connconf = config->conn;
{
auto &listenerconf = connconf.listener;
{
// Default accept() backlog
listenerconf.backlog = 65536;
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 HTTP3 upstream connection
timeoutconf.http3_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;
// Keep alive timeout for HTTP/1 upstream connection
timeoutconf.idle_read = 1_min;
}
}
{
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 = 32_m;
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 << "nghttpx nghttp2/" NGHTTP2_VERSION
#ifdef ENABLE_HTTP3
" ngtcp2/" NGTCP2_VERSION " nghttp3/" NGHTTP3_VERSION
#endif // ENABLE_HTTP3
<< std::endl;
}
} // namespace
namespace {
void print_usage(std::ostream &out) {
out << R"(Usage: nghttpx [OPTIONS]... [<PRIVATE_KEY> <CERT>]
A reverse proxy for HTTP/3, HTTP/2, and HTTP/1.)"
<< 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. 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 a match against the
request host. For a request received on the frontend
listener with "sni-fwd" parameter enabled, SNI host is
used instead of a 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/"). CONNECT method is treated
specially. It does not have path, and we don't allow
empty path. To workaround this, we assume that CONNECT
method has "/" as path.
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 path part ends with "*", it is treated as wildcard
path. The wildcard path behaves differently from the
normal path. For normal path, match is made around the
boundary of path component separator,"/". On the other
hand, the wildcard path does not take into account the
path component separator. All paths which include the
wildcard path without last "*" as prefix, and are
strictly longer than wildcard path without last "*" are
matched. "*" must match at least one character. For
example, the pattern "/foo*" matches "/foo/" and
"/foobar". But it does not match "/foo", or "/fo".
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>", "dns", "redirect-if-not-tls",
"upgrade-scheme", "mruby=<PATH>",
"read-timeout=<DURATION>", "write-timeout=<DURATION>",
"group=<GROUP>", "group-weight=<N>", "weight=<N>", and
"dnf". 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 "cookie" is given in <METHOD>, cookie 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.
If "affinity=cookie" is used, the additional
configuration is required.
"affinity-cookie-name=<NAME>" must be used to specify a
name of cookie to use. Optionally,
"affinity-cookie-path=<PATH>" can be used to specify a
path which cookie is applied. The optional
"affinity-cookie-secure=<SECURE>" controls the Secure
attribute of a cookie. The default value is "auto", and
the Secure attribute is determined by a request scheme.
If a request scheme is "https", then Secure attribute is
set. Otherwise, it is not set. If <SECURE> is "yes",
the Secure attribute is always set. If <SECURE> is
"no", the Secure attribute is always omitted.
"affinity-cookie-stickiness=<STICKINESS>" controls
stickiness of this affinity. If <STICKINESS> is
"loose", removing or adding a backend server might break
the affinity and the request might be forwarded to a
different backend server. If <STICKINESS> is "strict",
removing the designated backend server breaks affinity,
but adding new backend server does not cause breakage.
If the designated backend server becomes unavailable,
new backend server is chosen as if the request does not
have an affinity cookie. <STICKINESS> defaults to
"loose".
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.
If "redirect-if-not-tls" parameter is used, the matched
backend requires that frontend connection is TLS
encrypted. If it isn't, nghttpx responds to the request
with 308 status code, and https URI the client should
use instead is included in Location header field. The
port number in redirect URI is 443 by default, and can
be changed using --redirect-https-port option. If at
least one backend has "redirect-if-not-tls" parameter,
this feature is enabled for all backend servers sharing
the same <PATTERN>. It is advised to set
"redirect-if-no-tls" parameter to all backends
explicitly if this feature is desired.
If "upgrade-scheme" parameter is used along with "tls"
parameter, HTTP/2 :scheme pseudo header field is changed
to "https" from "http" when forwarding a request to this
particular backend. This is a workaround for a backend
server which requires "https" :scheme pseudo header
field on TLS encrypted connection.
"mruby=<PATH>" parameter specifies a path to mruby
script file which is invoked when this pattern is
matched. All backends which share the same pattern must
have the same mruby path.
"read-timeout=<DURATION>" and "write-timeout=<DURATION>"
parameters specify the read and write timeout of the
backend connection when this pattern is matched. All
backends which share the same pattern must have the same
timeouts. If these timeouts are entirely omitted for a
pattern, --backend-read-timeout and
--backend-write-timeout are used.
"group=<GROUP>" parameter specifies the name of group
this backend address belongs to. By default, it belongs
to the unnamed default group. The name of group is
unique per pattern. "group-weight=<N>" parameter
specifies the weight of the group. The higher weight
gets more frequently selected by the load balancing
algorithm. <N> must be [1, 256] inclusive. The weight
8 has 4 times more weight than 2. <N> must be the same
for all addresses which share the same <GROUP>. If
"group-weight" is omitted in an address, but the other
address which belongs to the same group specifies
"group-weight", its weight is used. If no
"group-weight" is specified for all addresses, the
weight of a group becomes 1. "group" and "group-weight"
are ignored if session affinity is enabled.
"weight=<N>" parameter specifies the weight of the
backend address inside a group which this address
belongs to. The higher weight gets more frequently
selected by the load balancing algorithm. <N> must be
[1, 256] inclusive. The weight 8 has 4 times more
weight than weight 2. If this parameter is omitted,
weight becomes 1. "weight" is ignored if session
affinity is enabled.
If "dnf" parameter is specified, an incoming request is
not forwarded to a backend and just consumed along with
the request body (actually a backend server never be
contacted). It is expected that the HTTP response is
generated by mruby script (see "mruby=<PATH>" parameter
above). "dnf" is an abbreviation of "do not forward".
Since ";" and ":" are used as delimiter, <PATTERN> must
not contain these characters. In order to include ":"
in <PATTERN>, one has to specify "%3A" (which is
percent-encoded from of ":") instead. 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.
If "sni-fwd" parameter is used, when performing a match
to select a backend server, SNI host name received from
the client is used instead of the request host. See
--backend option about the pattern match.
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.
To accept PROXY protocol version 1 and 2 on frontend
connection, specify "proxyproto" parameter. This is
disabled by default.
To receive HTTP/3 (QUIC) traffic, specify "quic"
parameter. It makes nghttpx listen on UDP port rather
than TCP port. UNIX domain socket, "api", and
"healthmon" parameters cannot be used with "quic"
parameter.
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.
Performance:
-n, --workers=<N>
Set the number of worker threads.
Default: )"
<< config->num_worker << R"(
--single-thread
Run everything in one thread inside the worker process.
This feature is provided for better debugging
experience, or for the platforms which lack thread
support. If threading is disabled, this option is
always enabled.
--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"(
--rlimit-memlock=<N>
Set maximum number of bytes of memory that may be locked
into RAM. If 0 is given, nghttpx does not set the
limit.
Default: )"
<< config->rlimit_memlock << 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 frontend connection.
Default: )"
<< util::duration_str(config->conn.upstream.timeout.http2_read) << R"(
--frontend-http3-read-timeout=<DURATION>
Specify read timeout for HTTP/3 frontend connection.
Default: )"
<< util::duration_str(config->conn.upstream.timeout.http3_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"(
--frontend-keep-alive-timeout=<DURATION>
Specify keep-alive timeout for frontend HTTP/1
connection.
Default: )"
<< util::duration_str(config->conn.upstream.timeout.idle_read) << R"(
--stream-read-timeout=<DURATION>
Specify read timeout for HTTP/2 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 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 HTTP/1
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 for frontend connection. The
format of the string is described in OpenSSL ciphers(1).
This option sets cipher suites for TLSv1.2 or earlier.
Use --tls13-ciphers for TLSv1.3.
Default: )"
<< config->tls.ciphers << R"(
--tls13-ciphers=<SUITE>
Set allowed cipher list for frontend connection. The
format of the string is described in OpenSSL ciphers(1).
This option sets cipher suites for TLSv1.3. Use
--ciphers for TLSv1.2 or earlier.
Default: )"
<< config->tls.tls13_ciphers << R"(
--client-ciphers=<SUITE>
Set allowed cipher list for backend connection. The
format of the string is described in OpenSSL ciphers(1).
This option sets cipher suites for TLSv1.2 or earlier.
Use --tls13-client-ciphers for TLSv1.3.
Default: )"
<< config->tls.client.ciphers << R"(
--tls13-client-ciphers=<SUITE>
Set allowed cipher list for backend connection. The
format of the string is described in OpenSSL ciphers(1).
This option sets cipher suites for TLSv1.3. Use
--tls13-client-ciphers for TLSv1.2 or earlier.
Default: )"
<< config->tls.client.tls13_ciphers << R"(
--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. It is used in
backend TLS connections to verify peer's certificate.
It is also used to verify OCSP response from the script
set by --fetch-ocsp-response-file. 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. If nghttpx
is built with OpenSSL >= 1.0.2, the shared elliptic
curves (e.g., P-256) between client and server are also
taken into consideration. This allows nghttpx to send
ECDSA certificate to modern clients, while sending RSA
based certificate to older clients. 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.
--verify-client-tolerate-expired
Accept expired client certificate. Operator should
handle the expired client certificate by some means
(e.g., mruby script). Otherwise, this option might
cause a security risk.
--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-min-proto-version=<VER>
Specify minimum SSL/TLS protocol. The name matching is
done in case-insensitive manner. The versions between
--tls-min-proto-version and --tls-max-proto-version are
enabled. If the protocol list advertised by client does
not overlap this range, you will receive the error
message "unknown protocol". If a protocol version lower
than TLSv1.2 is specified, make sure that the compatible
ciphers are included in --ciphers option. The default
cipher list only includes ciphers compatible with
TLSv1.2 or above. The available versions are:
)"
#ifdef TLS1_3_VERSION
"TLSv1.3, "
#endif // TLS1_3_VERSION
"TLSv1.2, TLSv1.1, and TLSv1.0"
R"(
Default: )"
<< DEFAULT_TLS_MIN_PROTO_VERSION
<< R"(
--tls-max-proto-version=<VER>
Specify maximum SSL/TLS protocol. The name matching is
done in case-insensitive manner. The versions between
--tls-min-proto-version and --tls-max-proto-version are
enabled. If the protocol list advertised by client does
not overlap this range, you will receive the error
message "unknown protocol". The available versions are:
)"
#ifdef TLS1_3_VERSION
"TLSv1.3, "
#endif // TLS1_3_VERSION
"TLSv1.2, TLSv1.1, and TLSv1.0"
R"(
Default: )"
<< DEFAULT_TLS_MAX_PROTO_VERSION << 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"(
--ocsp-startup
Start accepting connections after initial attempts to
get OCSP responses finish. It does not matter some of
the attempts fail. This feature is useful if OCSP
responses must be available before accepting
connections.
--no-verify-ocsp
nghttpx does not verify OCSP response.
--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-block-list
Allow block listed cipher suite on frontend HTTP/2
connection. See
https://tools.ietf.org/html/rfc7540#appendix-A for the
complete HTTP/2 cipher suites block list.
--client-no-http2-cipher-block-list
Allow block listed cipher suite on backend HTTP/2
connection. See
https://tools.ietf.org/html/rfc7540#appendix-A for the
complete HTTP/2 cipher suites block 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.
--psk-secrets=<PATH>
Read list of PSK identity and secrets from <PATH>. This
is used for frontend connection. The each line of input
file is formatted as <identity>:<hex-secret>, where
<identity> is PSK identity, and <hex-secret> is secret
in hex. An empty line, and line which starts with '#'
are skipped. The default enabled cipher list might not
contain any PSK cipher suite. In that case, desired PSK
cipher suites must be enabled using --ciphers option.
The desired PSK cipher suite may be block listed by
HTTP/2. To use those cipher suites with HTTP/2,
consider to use --no-http2-cipher-block-list option.
But be aware its implications.
--client-psk-secrets=<PATH>
Read PSK identity and secrets from <PATH>. This is used
for backend connection. The each line of input file is
formatted as <identity>:<hex-secret>, where <identity>
is PSK identity, and <hex-secret> is secret in hex. An
empty line, and line which starts with '#' are skipped.
The first identity and secret pair encountered is used.
The default enabled cipher list might not contain any
PSK cipher suite. In that case, desired PSK cipher
suites must be enabled using --client-ciphers option.
The desired PSK cipher suite may be block listed by
HTTP/2. To use those cipher suites with HTTP/2,
consider to use --client-no-http2-cipher-block-list
option. But be aware its implications.
--tls-no-postpone-early-data
By default, except for QUIC connections, nghttpx
postpones forwarding HTTP requests sent in early data,
including those sent in partially in it, until TLS
handshake finishes. If all backend server recognizes
"Early-Data" header field, using this option makes
nghttpx not postpone forwarding request and get full
potential of 0-RTT data.
--tls-max-early-data=<SIZE>
Sets the maximum amount of 0-RTT data that server
accepts.
Default: )"
<< util::utos_unit(config->tls.max_early_data) << R"(
--tls-ktls Enable ktls. For server, ktls is enable if
--tls-session-cache-memcached is not configured.
HTTP/2:
-c, --frontend-http2-max-concurrent-streams=<N>
Set the maximum number of the concurrent streams in one
frontend HTTP/2 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
frontend connection.
Default: )"
<< config->http2.upstream.window_size << R"(
--frontend-http2-connection-window-size=<SIZE>
Sets the per-connection window size of HTTP/2 frontend
connection.
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.
--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, 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.
* $tls_cipher: cipher used for SSL/TLS connection.
* $tls_client_fingerprint_sha256: SHA-256 fingerprint of
client certificate.
* $tls_client_fingerprint_sha1: SHA-1 fingerprint of
client certificate.
* $tls_client_subject_name: subject name in client
certificate.
* $tls_client_issuer_name: issuer name in client
certificate.
* $tls_client_serial: serial number in client
certificate.
* $tls_protocol: protocol for SSL/TLS connection.
* $tls_session_id: session ID for SSL/TLS connection.
* $tls_session_reused: "r" if SSL/TLS session was
reused. Otherwise, "."
* $tls_sni: SNI server name for SSL/TLS connection.
* $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.
* $method: HTTP method
* $path: Request path including query. For CONNECT
request, authority is recorded.
* $path_without_query: $path up to the first '?'
character. For CONNECT request, authority is
recorded.
* $protocol_version: HTTP version (e.g., HTTP/1.1,
HTTP/2)
The variable can be enclosed by "{" and "}" for
disambiguation (e.g., ${remote_addr}).
Default: )"
<< DEFAULT_ACCESSLOG_FORMAT << R"(
--accesslog-write-early
Write access log when response header fields are
received from backend rather than when request
transaction finishes.
--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.
--no-add-x-forwarded-proto
Don't append additional X-Forwarded-Proto header field
to the backend request. If inbound client sets
X-Forwarded-Proto, and
--no-strip-incoming-x-forwarded-proto option is used,
they are passed to the backend.
--no-strip-incoming-x-forwarded-proto
Don't strip X-Forwarded-Proto 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-strip-incoming-early-data
Don't strip Early-Data header field from inbound client
requests.
--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[,PARAMS]]]>
Specify protocol ID, port, host and origin of
alternative service. <HOST>, <ORIGIN> and <PARAMS> are
optional. Empty <HOST> and <ORIGIN> are allowed and
they are treated as nothing is specified. 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,,,ma=3600; persist=1"
--http2-altsvc=<PROTOID,PORT[,HOST,[ORIGIN[,PARAMS]]]>
Just like --altsvc option, but this altsvc is only sent
in HTTP/2 frontend.
--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.
--redirect-https-port=<PORT>
Specify the port number which appears in Location header
field when redirect to HTTPS URI is made due to
"redirect-if-not-tls" parameter in --backend option.
Default: )"
<< config->http.redirect_https_port << R"(
--require-http-scheme
Always require http or https scheme in HTTP request. It
also requires that https scheme must be used for an
encrypted connection. Otherwise, http scheme must be
used. This option is recommended for a server
deployment which directly faces clients and the services
it provides only require http or https scheme.
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"(
--frontend-max-requests=<N>
The number of requests that single frontend connection
can process. For HTTP/2, this is the number of streams
in one HTTP/2 connection. For HTTP/1, this is the
number of keep alive requests. This is hint to nghttpx,
and it may allow additional few requests. The default
value is unlimited.
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.
--single-process
Run this program in a single process mode for debugging
purpose. Without this option, nghttpx creates at least
2 processes: main and worker processes. If this option
is used, main and worker are unified into a single
process. nghttpx still spawns additional process if
neverbleed is used. In the single process mode, the
signal handling feature is disabled.
--max-worker-processes=<N>
The maximum number of worker processes. nghttpx spawns
new worker process when it reloads its configuration.
The previous worker process enters graceful termination
period and will terminate when it finishes handling the
existing connections. However, if reloading
configurations happen very frequently, the worker
processes might be piled up if they take a bit long time
to finish the existing connections. With this option,
if the number of worker processes exceeds the given
value, the oldest worker process is terminated
immediately. Specifying 0 means no limit and it is the
default behaviour.
--worker-process-grace-shutdown-period=<DURATION>
Maximum period for a worker process to terminate
gracefully. When a worker process enters in graceful
shutdown period (e.g., when nghttpx reloads its
configuration) and it does not finish handling the
existing connections in the given period of time, it is
immediately terminated. Specifying 0 means no limit and
it is the default behaviour.
Scripting:
--mruby-file=<PATH>
Set mruby script file
--ignore-per-pattern-mruby-error
Ignore mruby compile error for per-pattern mruby script
file. If error occurred, it is treated as if no mruby
file were specified for the pattern.
)";
#ifdef ENABLE_HTTP3
out << R"(
HTTP/3 and QUIC:
--frontend-quic-idle-timeout=<DURATION>
Specify an idle timeout for QUIC connection.
Default: )"
<< util::duration_str(config->quic.upstream.timeout.idle) << R"(
--frontend-quic-debug-log
Output QUIC debug log to /dev/stderr.
--quic-bpf-program-file=<PATH>
Specify a path to eBPF program file reuseport_kern.o to
direct an incoming QUIC UDP datagram to a correct
socket.
Default: )"
<< config->quic.bpf.prog_file << R"(
--frontend-quic-early-data
Enable early data on frontend QUIC connections. nghttpx
sends "Early-Data" header field to a backend server if a
request is received in early data and handshake has not
finished. All backend servers should deal with possibly
replayed requests.
--frontend-quic-qlog-dir=<DIR>
Specify a directory where a qlog file is written for
frontend QUIC connections. A qlog file is created per
each QUIC connection. The file name is ISO8601 basic
format, followed by "-", server Source Connection ID and
".sqlog".
--frontend-quic-require-token
Require an address validation token for a frontend QUIC
connection. Server sends a token in Retry packet or
NEW_TOKEN frame in the previous connection.
--frontend-quic-congestion-controller=<CC>
Specify a congestion controller algorithm for a frontend
QUIC connection. <CC> should be one of "cubic", "bbr",
and "bbr2".
Default: )"
<< (config->quic.upstream.congestion_controller == NGTCP2_CC_ALGO_CUBIC
? "cubic"
: (config->quic.upstream.congestion_controller ==
NGTCP2_CC_ALGO_BBR
? "bbr"
: "bbr2"))
<< R"(
--frontend-quic-secret-file=<PATH>
Path to file that contains secure random data to be used
as QUIC keying materials. It is used to derive keys for
encrypting tokens and Connection IDs. It is not used to
encrypt QUIC packets. Each line of this file must
contain exactly 136 bytes hex-encoded string (when
decoded the byte string is 68 bytes long). The first 2
bits of decoded byte string are used to identify the
keying material. An empty line or a line which starts
'#' is ignored. The file can contain more than one
keying materials. Because the identifier is 2 bits, at
most 4 keying materials are read and the remaining data
is discarded. The first keying material in the file is
primarily used for encryption and decryption for new
connection. The other ones are used to decrypt data for
the existing connections. Specifying multiple keying
materials enables key rotation. Please note that key
rotation does not occur automatically. User should
update files or change options values and restart
nghttpx gracefully. If opening or reading given file
fails, all loaded keying materials 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, a keying material is generated
internally on startup and reload.
--quic-server-id=<HEXSTRING>
Specify server ID encoded in Connection ID to identify
this particular server instance. Connection ID is
encrypted and this part is not visible in public. It
must be 4 bytes long and must be encoded in hex string
(which is 8 bytes long). If this option is omitted, a
random server ID is generated on startup and
configuration reload.
--frontend-quic-initial-rtt=<DURATION>
Specify the initial RTT of the frontend QUIC connection.
Default: )"
<< util::duration_str(config->quic.upstream.initial_rtt) << R"(
--no-quic-bpf
Disable eBPF.
--frontend-http3-window-size=<SIZE>
Sets the per-stream initial window size of HTTP/3
frontend connection.
Default: )"
<< util::utos_unit(config->http3.upstream.window_size) << R"(
--frontend-http3-connection-window-size=<SIZE>
Sets the per-connection window size of HTTP/3 frontend
connection.
Default: )"
<< util::utos_unit(config->http3.upstream.connection_window_size) << R"(
--frontend-http3-max-window-size=<SIZE>
Sets the maximum per-stream window size of HTTP/3
frontend connection. The window size is adjusted based
on the receiving rate of stream data. The initial value
is the value specified by --frontend-http3-window-size
and the window size grows up to <SIZE> bytes.
Default: )"
<< util::utos_unit(config->http3.upstream.max_window_size) << R"(
--frontend-http3-max-connection-window-size=<SIZE>
Sets the maximum per-connection window size of HTTP/3
frontend connection. The window size is adjusted based
on the receiving rate of stream data. The initial value
is the value specified by
--frontend-http3-connection-window-size and the window
size grows up to <SIZE> bytes.
Default: )"
<< util::utos_unit(config->http3.upstream.max_connection_window_size)
<< R"(
--frontend-http3-max-concurrent-streams=<N>
Set the maximum number of the concurrent streams in one
frontend HTTP/3 connection.
Default: )"
<< config->http3.upstream.max_concurrent_streams << R"(
)";
#endif // ENABLE_HTTP3
out << R"(
Misc:
--conf=<PATH>
Load configuration from <PATH>. Please note that
nghttpx always tries to read the default configuration
file if --conf is not given.
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;
std::map<StringRef, size_t> pattern_addr_indexer;
if (conf_exists(config->conf_path.c_str())) {
LOG(NOTICE) << "Loading configuration from " << config->conf_path;
std::set<StringRef> include_set;
if (load_config(config, config->conf_path.c_str(), include_set,
pattern_addr_indexer) == -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(config->logging);
{
std::set<StringRef> include_set;
for (auto &p : cmdcfgs) {
if (parse_config(config, p.first, p.second, include_set,
pattern_addr_indexer) == -1) {
LOG(FATAL) << "Failed to parse command-line argument.";
return -1;
}
}
assert(include_set.empty());
}
Log::set_severity_level(config->logging.severity);
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(config->logging) != 0) {
LOG(FATAL) << "Failed to open log file";
return -1;
}
redirect_stderr_to_errorlog(loggingconf);
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());
}
}
if (config->single_thread) {
LOG(WARN) << "single-thread: Set workers to 1";
config->num_worker = 1;
}
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(path, config->uid, config->gid) == -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(path, config->uid, config->gid) == -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_mask = tls::create_tls_proto_mask(tlsconf.tls_proto_list);
}
// TODO We depends on the ordering of protocol version macro in
// OpenSSL.
if (tlsconf.min_proto_version > tlsconf.max_proto_version) {
LOG(ERROR) << "tls-max-proto-version must be equal to or larger than "
"tls-min-proto-version";
return -1;
}
if (tls::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;
addr.index = 0;
listenerconf.addrs.push_back(addr);
addr.family = AF_INET6;
addr.index = 1;
listenerconf.addrs.push_back(std::move(addr));
}
if (upstreamconf.worker_connections == 0) {
upstreamconf.worker_connections = std::numeric_limits<size_t>::max();
}
if (tls::upstream_tls_enabled(config->conn) &&
(tlsconf.private_key_file.empty() || tlsconf.cert_file.empty())) {
LOG(FATAL) << "TLS private key and certificate files are required. "
"Specify them in command-line, or in configuration file "
"using private-key-file and certificate-file options.";
return -1;
}
if (tls::upstream_tls_enabled(config->conn) && !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;
}
std::array<char, util::max_hostport> hostport_buf;
auto &proxy = config->downstream_http_proxy;
if (!proxy.host.empty()) {
auto hostport = util::make_hostport(std::begin(hostport_buf),
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(std::begin(hostport_buf),
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(std::begin(hostport_buf),
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());
}
}
#ifdef RLIMIT_MEMLOCK
if (config->rlimit_memlock) {
struct rlimit lim = {static_cast<rlim_t>(config->rlimit_memlock),
static_cast<rlim_t>(config->rlimit_memlock)};
if (setrlimit(RLIMIT_MEMLOCK, &lim) != 0) {
auto error = errno;
LOG(WARN) << "Setting rlimit-memlock failed: "
<< xsi_strerror(error, errbuf.data(), errbuf.size());
}
}
#endif // RLIMIT_MEMLOCK
auto &fwdconf = config->http.forwarded;
if (fwdconf.by_node_type == ForwardedNode::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++ = '_';
auto gen = util::make_mt19937();
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();
if (!config->http.altsvcs.empty()) {
config->http.altsvc_header_value =
http::create_altsvc_header_value(config->balloc, config->http.altsvcs);
}
if (!config->http.http2_altsvcs.empty()) {
config->http.http2_altsvc_header_value = http::create_altsvc_header_value(
config->balloc, config->http.http2_altsvcs);
}
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 = std::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;
new_config->config_revision = cur_config->config_revision + 1;
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 = 0;
#ifdef ENABLE_HTTP3
int quic_ipc_fd = 0;
auto quic_lwps = collect_quic_lingering_worker_processes();
std::vector<std::array<uint8_t, SHRPX_QUIC_CID_PREFIXLEN>> cid_prefixes;
if (generate_cid_prefix(cid_prefixes, new_config.get()) != 0) {
close_not_inherited_fd(new_config.get(), iaddrs);
return;
}
#endif // ENABLE_HTTP3
// 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
#ifdef ENABLE_HTTP3
,
quic_ipc_fd
#endif // ENABLE_HTTP3
,
iaddrs
#ifdef ENABLE_HTTP3
,
cid_prefixes, quic_lwps
#endif // ENABLE_HTTP3
);
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);
worker_process_set_termination_deadline(last_wp.get(), loop);
// We no longer use signals for this worker.
last_wp->shutdown_signal_watchers();
worker_process_add(std::make_unique<WorkerProcess>(loop, pid, ipc_fd
#ifdef ENABLE_HTTP3
,
quic_ipc_fd, cid_prefixes
#endif // ENABLE_HTTP3
));
worker_process_adjust_limit();
if (!get_config()->pid_file.empty()) {
save_pid();
}
}
} // namespace
int main(int argc, char **argv) {
int rv;
std::array<char, STRERROR_BUFSIZE> errbuf;
nghttp2::tls::libssl_init();
#ifdef HAVE_LIBBPF
libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
#endif // HAVE_LIBBPF
#ifndef NOTHREADS
nghttp2::tls::LibsslGlobalLock lock;
#endif // NOTHREADS
Log::set_severity_level(NOTICE);
create_config();
fill_default_config(mod_config());
// make copy of stderr
store_original_fds();
// First open log files with default configuration, so that we can
// log errors/warnings while reading configuration files.
reopen_log_files(get_config()->logging);
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 constexpr 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_OCSP_STARTUP.c_str(), no_argument, &flag, 28},
{SHRPX_OPT_FRONTEND_NO_TLS.c_str(), no_argument, &flag, 29},
{SHRPX_OPT_NO_VERIFY_OCSP.c_str(), no_argument, &flag, 30},
{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},
{SHRPX_OPT_FRONTEND_KEEP_ALIVE_TIMEOUT.c_str(), required_argument,
&flag, 146},
{SHRPX_OPT_PSK_SECRETS.c_str(), required_argument, &flag, 147},
{SHRPX_OPT_CLIENT_PSK_SECRETS.c_str(), required_argument, &flag, 148},
{SHRPX_OPT_CLIENT_NO_HTTP2_CIPHER_BLACK_LIST.c_str(), no_argument,
&flag, 149},
{SHRPX_OPT_CLIENT_CIPHERS.c_str(), required_argument, &flag, 150},
{SHRPX_OPT_ACCESSLOG_WRITE_EARLY.c_str(), no_argument, &flag, 151},
{SHRPX_OPT_TLS_MIN_PROTO_VERSION.c_str(), required_argument, &flag,
152},
{SHRPX_OPT_TLS_MAX_PROTO_VERSION.c_str(), required_argument, &flag,
153},
{SHRPX_OPT_REDIRECT_HTTPS_PORT.c_str(), required_argument, &flag, 154},
{SHRPX_OPT_FRONTEND_MAX_REQUESTS.c_str(), required_argument, &flag,
155},
{SHRPX_OPT_SINGLE_THREAD.c_str(), no_argument, &flag, 156},
{SHRPX_OPT_NO_ADD_X_FORWARDED_PROTO.c_str(), no_argument, &flag, 157},
{SHRPX_OPT_NO_STRIP_INCOMING_X_FORWARDED_PROTO.c_str(), no_argument,
&flag, 158},
{SHRPX_OPT_SINGLE_PROCESS.c_str(), no_argument, &flag, 159},
{SHRPX_OPT_VERIFY_CLIENT_TOLERATE_EXPIRED.c_str(), no_argument, &flag,
160},
{SHRPX_OPT_IGNORE_PER_PATTERN_MRUBY_ERROR.c_str(), no_argument, &flag,
161},
{SHRPX_OPT_TLS_NO_POSTPONE_EARLY_DATA.c_str(), no_argument, &flag, 162},
{SHRPX_OPT_TLS_MAX_EARLY_DATA.c_str(), required_argument, &flag, 163},
{SHRPX_OPT_TLS13_CIPHERS.c_str(), required_argument, &flag, 164},
{SHRPX_OPT_TLS13_CLIENT_CIPHERS.c_str(), required_argument, &flag, 165},
{SHRPX_OPT_NO_STRIP_INCOMING_EARLY_DATA.c_str(), no_argument, &flag,
166},
{SHRPX_OPT_NO_HTTP2_CIPHER_BLOCK_LIST.c_str(), no_argument, &flag, 167},
{SHRPX_OPT_CLIENT_NO_HTTP2_CIPHER_BLOCK_LIST.c_str(), no_argument,
&flag, 168},
{SHRPX_OPT_QUIC_BPF_PROGRAM_FILE.c_str(), required_argument, &flag,
169},
{SHRPX_OPT_NO_QUIC_BPF.c_str(), no_argument, &flag, 170},
{SHRPX_OPT_HTTP2_ALTSVC.c_str(), required_argument, &flag, 171},
{SHRPX_OPT_FRONTEND_HTTP3_READ_TIMEOUT.c_str(), required_argument,
&flag, 172},
{SHRPX_OPT_FRONTEND_QUIC_IDLE_TIMEOUT.c_str(), required_argument, &flag,
173},
{SHRPX_OPT_FRONTEND_QUIC_DEBUG_LOG.c_str(), no_argument, &flag, 174},
{SHRPX_OPT_FRONTEND_HTTP3_WINDOW_SIZE.c_str(), required_argument, &flag,
175},
{SHRPX_OPT_FRONTEND_HTTP3_CONNECTION_WINDOW_SIZE.c_str(),
required_argument, &flag, 176},
{SHRPX_OPT_FRONTEND_HTTP3_MAX_WINDOW_SIZE.c_str(), required_argument,
&flag, 177},
{SHRPX_OPT_FRONTEND_HTTP3_MAX_CONNECTION_WINDOW_SIZE.c_str(),
required_argument, &flag, 178},
{SHRPX_OPT_FRONTEND_HTTP3_MAX_CONCURRENT_STREAMS.c_str(),
required_argument, &flag, 179},
{SHRPX_OPT_FRONTEND_QUIC_EARLY_DATA.c_str(), no_argument, &flag, 180},
{SHRPX_OPT_FRONTEND_QUIC_QLOG_DIR.c_str(), required_argument, &flag,
181},
{SHRPX_OPT_FRONTEND_QUIC_REQUIRE_TOKEN.c_str(), no_argument, &flag,
182},
{SHRPX_OPT_FRONTEND_QUIC_CONGESTION_CONTROLLER.c_str(),
required_argument, &flag, 183},
{SHRPX_OPT_QUIC_SERVER_ID.c_str(), required_argument, &flag, 185},
{SHRPX_OPT_FRONTEND_QUIC_SECRET_FILE.c_str(), required_argument, &flag,
186},
{SHRPX_OPT_RLIMIT_MEMLOCK.c_str(), required_argument, &flag, 187},
{SHRPX_OPT_MAX_WORKER_PROCESSES.c_str(), required_argument, &flag, 188},
{SHRPX_OPT_WORKER_PROCESS_GRACE_SHUTDOWN_PERIOD.c_str(),
required_argument, &flag, 189},
{SHRPX_OPT_FRONTEND_QUIC_INITIAL_RTT.c_str(), required_argument, &flag,
190},
{SHRPX_OPT_REQUIRE_HTTP_SCHEME.c_str(), no_argument, &flag, 191},
{SHRPX_OPT_TLS_KTLS.c_str(), no_argument, &flag, 192},
{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 28:
// --ocsp-startup
cmdcfgs.emplace_back(SHRPX_OPT_OCSP_STARTUP,
StringRef::from_lit("yes"));
break;
case 29:
// --frontend-no-tls
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_NO_TLS,
StringRef::from_lit("yes"));
break;
case 30:
// --no-verify-ocsp
cmdcfgs.emplace_back(SHRPX_OPT_NO_VERIFY_OCSP,
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;
case 146:
// --frontend-keep-alive-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_KEEP_ALIVE_TIMEOUT,
StringRef{optarg});
break;
case 147:
// --psk-secrets
cmdcfgs.emplace_back(SHRPX_OPT_PSK_SECRETS, StringRef{optarg});
break;
case 148:
// --client-psk-secrets
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_PSK_SECRETS, StringRef{optarg});
break;
case 149:
// --client-no-http2-cipher-black-list
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_NO_HTTP2_CIPHER_BLACK_LIST,
StringRef::from_lit("yes"));
break;
case 150:
// --client-ciphers
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_CIPHERS, StringRef{optarg});
break;
case 151:
// --accesslog-write-early
cmdcfgs.emplace_back(SHRPX_OPT_ACCESSLOG_WRITE_EARLY,
StringRef::from_lit("yes"));
break;
case 152:
// --tls-min-proto-version
cmdcfgs.emplace_back(SHRPX_OPT_TLS_MIN_PROTO_VERSION,
StringRef{optarg});
break;
case 153:
// --tls-max-proto-version
cmdcfgs.emplace_back(SHRPX_OPT_TLS_MAX_PROTO_VERSION,
StringRef{optarg});
break;
case 154:
// --redirect-https-port
cmdcfgs.emplace_back(SHRPX_OPT_REDIRECT_HTTPS_PORT, StringRef{optarg});
break;
case 155:
// --frontend-max-requests
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_MAX_REQUESTS,
StringRef{optarg});
break;
case 156:
// --single-thread
cmdcfgs.emplace_back(SHRPX_OPT_SINGLE_THREAD,
StringRef::from_lit("yes"));
break;
case 157:
// --no-add-x-forwarded-proto
cmdcfgs.emplace_back(SHRPX_OPT_NO_ADD_X_FORWARDED_PROTO,
StringRef::from_lit("yes"));
break;
case 158:
// --no-strip-incoming-x-forwarded-proto
cmdcfgs.emplace_back(SHRPX_OPT_NO_STRIP_INCOMING_X_FORWARDED_PROTO,
StringRef::from_lit("yes"));
break;
case 159:
// --single-process
cmdcfgs.emplace_back(SHRPX_OPT_SINGLE_PROCESS,
StringRef::from_lit("yes"));
break;
case 160:
// --verify-client-tolerate-expired
cmdcfgs.emplace_back(SHRPX_OPT_VERIFY_CLIENT_TOLERATE_EXPIRED,
StringRef::from_lit("yes"));
break;
case 161:
// --ignore-per-pattern-mruby-error
cmdcfgs.emplace_back(SHRPX_OPT_IGNORE_PER_PATTERN_MRUBY_ERROR,
StringRef::from_lit("yes"));
break;
case 162:
// --tls-no-postpone-early-data
cmdcfgs.emplace_back(SHRPX_OPT_TLS_NO_POSTPONE_EARLY_DATA,
StringRef::from_lit("yes"));
break;
case 163:
// --tls-max-early-data
cmdcfgs.emplace_back(SHRPX_OPT_TLS_MAX_EARLY_DATA, StringRef{optarg});
break;
case 164:
// --tls13-ciphers
cmdcfgs.emplace_back(SHRPX_OPT_TLS13_CIPHERS, StringRef{optarg});
break;
case 165:
// --tls13-client-ciphers
cmdcfgs.emplace_back(SHRPX_OPT_TLS13_CLIENT_CIPHERS, StringRef{optarg});
break;
case 166:
// --no-strip-incoming-early-data
cmdcfgs.emplace_back(SHRPX_OPT_NO_STRIP_INCOMING_EARLY_DATA,
StringRef::from_lit("yes"));
break;
case 167:
// --no-http2-cipher-block-list
cmdcfgs.emplace_back(SHRPX_OPT_NO_HTTP2_CIPHER_BLOCK_LIST,
StringRef::from_lit("yes"));
break;
case 168:
// --client-no-http2-cipher-block-list
cmdcfgs.emplace_back(SHRPX_OPT_CLIENT_NO_HTTP2_CIPHER_BLOCK_LIST,
StringRef::from_lit("yes"));
break;
case 169:
// --quic-bpf-program-file
cmdcfgs.emplace_back(SHRPX_OPT_QUIC_BPF_PROGRAM_FILE,
StringRef{optarg});
break;
case 170:
// --no-quic-bpf
cmdcfgs.emplace_back(SHRPX_OPT_NO_QUIC_BPF, StringRef::from_lit("yes"));
break;
case 171:
// --http2-altsvc
cmdcfgs.emplace_back(SHRPX_OPT_HTTP2_ALTSVC, StringRef{optarg});
break;
case 172:
// --frontend-http3-read-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP3_READ_TIMEOUT,
StringRef{optarg});
break;
case 173:
// --frontend-quic-idle-timeout
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_IDLE_TIMEOUT,
StringRef{optarg});
break;
case 174:
// --frontend-quic-debug-log
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_DEBUG_LOG,
StringRef::from_lit("yes"));
break;
case 175:
// --frontend-http3-window-size
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP3_WINDOW_SIZE,
StringRef{optarg});
break;
case 176:
// --frontend-http3-connection-window-size
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP3_CONNECTION_WINDOW_SIZE,
StringRef{optarg});
break;
case 177:
// --frontend-http3-max-window-size
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP3_MAX_WINDOW_SIZE,
StringRef{optarg});
break;
case 178:
// --frontend-http3-max-connection-window-size
cmdcfgs.emplace_back(
SHRPX_OPT_FRONTEND_HTTP3_MAX_CONNECTION_WINDOW_SIZE,
StringRef{optarg});
break;
case 179:
// --frontend-http3-max-concurrent-streams
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_HTTP3_MAX_CONCURRENT_STREAMS,
StringRef{optarg});
break;
case 180:
// --frontend-quic-early-data
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_EARLY_DATA,
StringRef::from_lit("yes"));
break;
case 181:
// --frontend-quic-qlog-dir
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_QLOG_DIR,
StringRef{optarg});
break;
case 182:
// --frontend-quic-require-token
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_REQUIRE_TOKEN,
StringRef::from_lit("yes"));
break;
case 183:
// --frontend-quic-congestion-controller
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_CONGESTION_CONTROLLER,
StringRef{optarg});
break;
case 185:
// --quic-server-id
cmdcfgs.emplace_back(SHRPX_OPT_QUIC_SERVER_ID, StringRef{optarg});
break;
case 186:
// --frontend-quic-secret-file
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_SECRET_FILE,
StringRef{optarg});
break;
case 187:
// --rlimit-memlock
cmdcfgs.emplace_back(SHRPX_OPT_RLIMIT_MEMLOCK, StringRef{optarg});
break;
case 188:
// --max-worker-processes
cmdcfgs.emplace_back(SHRPX_OPT_MAX_WORKER_PROCESSES, StringRef{optarg});
break;
case 189:
// --worker-process-grace-shutdown-period
cmdcfgs.emplace_back(SHRPX_OPT_WORKER_PROCESS_GRACE_SHUTDOWN_PERIOD,
StringRef{optarg});
break;
case 190:
// --frontend-quic-initial-rtt
cmdcfgs.emplace_back(SHRPX_OPT_FRONTEND_QUIC_INITIAL_RTT,
StringRef{optarg});
break;
case 191:
// --require-http-scheme
cmdcfgs.emplace_back(SHRPX_OPT_REQUIRE_HTTP_SCHEME,
StringRef::from_lit("yes"));
break;
case 192:
// --tls-ktls
cmdcfgs.emplace_back(SHRPX_OPT_TLS_KTLS, StringRef::from_lit("yes"));
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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