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manager.c
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/*
* server.c - Provide shadowsocks service
*
* Copyright (C) 2013 - 2019, Max Lv <[email protected]>
*
* This file is part of the shadowsocks-libev.
*
* shadowsocks-libev is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* shadowsocks-libev is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with shadowsocks-libev; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <locale.h>
#include <signal.h>
#include <string.h>
#include <strings.h>
#include <time.h>
#include <unistd.h>
#include <getopt.h>
#include <math.h>
#include <ctype.h>
#include <limits.h>
#include <dirent.h>
#include <netdb.h>
#include <errno.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <pthread.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <pwd.h>
#include <libcork/core.h>
#if defined(HAVE_SYS_IOCTL_H) && defined(HAVE_NET_IF_H) && defined(__linux__)
#include <net/if.h>
#include <sys/ioctl.h>
#define SET_INTERFACE
#endif
#include "json.h"
#include "utils.h"
#include "netutils.h"
#include "manager.h"
#ifndef BUF_SIZE
#define BUF_SIZE 65535
#endif
int verbose = 0;
char *executable = "ss-server";
char *working_dir = NULL;
int working_dir_size = 0;
static struct cork_hash_table *server_table;
static int
setnonblocking(int fd)
{
int flags;
if (-1 == (flags = fcntl(fd, F_GETFL, 0))) {
flags = 0;
}
return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
}
static void
destroy_server(struct server *server)
{
// function used to free memories alloced in **get_server**
if (server->method)
ss_free(server->method);
if (server->plugin)
ss_free(server->plugin);
if (server->plugin_opts)
ss_free(server->plugin_opts);
if (server->mode)
ss_free(server->mode);
}
static void
build_config(char *prefix, struct manager_ctx *manager, struct server *server)
{
char *path = NULL;
int path_size = strlen(prefix) + strlen(server->port) + 20;
path = ss_malloc(path_size);
snprintf(path, path_size, "%s/.shadowsocks_%s.conf", prefix, server->port);
FILE *f = fopen(path, "w+");
if (f == NULL) {
if (verbose) {
LOGE("unable to open config file");
}
ss_free(path);
return;
}
fprintf(f, "{\n");
fprintf(f, "\"server_port\":%d,\n", atoi(server->port));
fprintf(f, "\"password\":\"%s\"", server->password);
if (server->method)
fprintf(f, ",\n\"method\":\"%s\"", server->method);
else if (manager->method)
fprintf(f, ",\n\"method\":\"%s\"", manager->method);
if (server->fast_open[0])
fprintf(f, ",\n\"fast_open\": %s", server->fast_open);
else if (manager->fast_open)
fprintf(f, ",\n\"fast_open\": true");
if (server->no_delay[0])
fprintf(f, ",\n\"no_delay\": %s", server->no_delay);
else if (manager->no_delay)
fprintf(f, ",\n\"no_delay\": true");
if (manager->reuse_port)
fprintf(f, ",\n\"reuse_port\": true");
if (server->mode)
fprintf(f, ",\n\"mode\":\"%s\"", server->mode);
if (server->plugin)
fprintf(f, ",\n\"plugin\":\"%s\"", server->plugin);
if (server->plugin_opts)
fprintf(f, ",\n\"plugin_opts\":\"%s\"", server->plugin_opts);
fprintf(f, "\n}\n");
fclose(f);
ss_free(path);
}
static char *
construct_command_line(struct manager_ctx *manager, struct server *server)
{
static char cmd[BUF_SIZE];
int i;
int port;
port = atoi(server->port);
build_config(working_dir, manager, server);
memset(cmd, 0, BUF_SIZE);
snprintf(cmd, BUF_SIZE,
"%s --manager-address %s -f %s/.shadowsocks_%d.pid -c %s/.shadowsocks_%d.conf",
executable, manager->manager_address, working_dir, port, working_dir, port);
if (manager->acl != NULL) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --acl %s", manager->acl);
}
if (manager->timeout != NULL) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -t %s", manager->timeout);
}
#ifdef HAVE_SETRLIMIT
if (manager->nofile) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -n %d", manager->nofile);
}
#endif
if (manager->user != NULL) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -a %s", manager->user);
}
if (manager->verbose) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -v");
}
if (server->mode == NULL && manager->mode == UDP_ONLY) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -U");
}
if (server->mode == NULL && manager->mode == TCP_AND_UDP) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -u");
}
if (manager->iface) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -i \"%s\"", manager->iface);
}
if (server->fast_open[0] == 0 && manager->fast_open) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --fast-open");
}
if (server->no_delay[0] == 0 && manager->no_delay) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --no-delay");
}
if (manager->ipv6first) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -6");
}
if (manager->mtu) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --mtu %d", manager->mtu);
}
if (server->plugin == NULL && manager->plugin) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --plugin \"%s\"", manager->plugin);
}
if (server->plugin_opts == NULL && manager->plugin_opts) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " --plugin-opts \"%s\"", manager->plugin_opts);
}
if (manager->nameservers) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -d \"%s\"", manager->nameservers);
}
for (i = 0; i < manager->host_num; i++) {
int len = strlen(cmd);
snprintf(cmd + len, BUF_SIZE - len, " -s %s", manager->hosts[i]);
}
if (verbose) {
LOGI("cmd: %s", cmd);
}
return cmd;
}
static char *
get_data(char *buf, int len)
{
char *data;
int pos = 0;
while (pos < len && buf[pos] != '{')
pos++;
if (pos == len) {
return NULL;
}
data = buf + pos - 1;
return data;
}
static char *
get_action(char *buf, int len)
{
char *action;
int pos = 0;
while (pos < len && isspace((unsigned char)buf[pos]))
pos++;
if (pos == len) {
return NULL;
}
action = buf + pos;
while (pos < len && (!isspace((unsigned char)buf[pos]) && buf[pos] != ':'))
pos++;
buf[pos] = '\0';
return action;
}
static struct server *
get_server(char *buf, int len)
{
char *data = get_data(buf, len);
char error_buf[512];
if (data == NULL) {
LOGE("No data found");
return NULL;
}
json_settings settings = { 0 };
json_value *obj = json_parse_ex(&settings, data, strlen(data), error_buf);
if (obj == NULL) {
LOGE("%s", error_buf);
return NULL;
}
struct server *server = ss_malloc(sizeof(struct server));
memset(server, 0, sizeof(struct server));
if (obj->type == json_object) {
int i = 0;
for (i = 0; i < obj->u.object.length; i++) {
char *name = obj->u.object.values[i].name;
json_value *value = obj->u.object.values[i].value;
if (strcmp(name, "server_port") == 0) {
if (value->type == json_string) {
strncpy(server->port, value->u.string.ptr, 7);
} else if (value->type == json_integer) {
snprintf(server->port, 8, "%" PRIu64 "", value->u.integer);
}
} else if (strcmp(name, "password") == 0) {
if (value->type == json_string) {
strncpy(server->password, value->u.string.ptr, 127);
}
} else if (strcmp(name, "method") == 0) {
if (value->type == json_string) {
server->method = strdup(value->u.string.ptr);
}
} else if (strcmp(name, "fast_open") == 0) {
if (value->type == json_boolean) {
strncpy(server->fast_open, (value->u.boolean ? "true" : "false"), 8);
}
} else if (strcmp(name, "no_delay") == 0) {
if (value->type == json_boolean) {
strncpy(server->no_delay, (value->u.boolean ? "true" : "false"), 8);
}
} else if (strcmp(name, "plugin") == 0) {
if (value->type == json_string) {
server->plugin = strdup(value->u.string.ptr);
}
} else if (strcmp(name, "plugin_opts") == 0) {
if (value->type == json_string) {
server->plugin_opts = strdup(value->u.string.ptr);
}
} else if (strcmp(name, "mode") == 0) {
if (value->type == json_string) {
server->mode = strdup(value->u.string.ptr);
}
} else {
LOGE("invalid data: %s", data);
break;
}
}
}
json_value_free(obj);
return server;
}
static int
parse_traffic(char *buf, int len, char *port, uint64_t *traffic)
{
char *data = get_data(buf, len);
char error_buf[512];
json_settings settings = { 0 };
if (data == NULL) {
LOGE("No data found");
return -1;
}
json_value *obj = json_parse_ex(&settings, data, strlen(data), error_buf);
if (obj == NULL) {
LOGE("%s", error_buf);
return -1;
}
if (obj->type == json_object) {
int i = 0;
for (i = 0; i < obj->u.object.length; i++) {
char *name = obj->u.object.values[i].name;
json_value *value = obj->u.object.values[i].value;
if (value->type == json_integer) {
strncpy(port, name, 7);
*traffic = value->u.integer;
}
}
}
json_value_free(obj);
return 0;
}
static int
create_and_bind(const char *host, const char *port, int protocol)
{
struct addrinfo hints;
struct addrinfo *result, *rp, *ipv4v6bindall;
int s, listen_sock = -1;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC; /* Return IPv4 and IPv6 choices */
hints.ai_socktype = protocol == IPPROTO_TCP ?
SOCK_STREAM : SOCK_DGRAM; /* We want a TCP or UDP socket */
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; /* For wildcard IP address */
hints.ai_protocol = protocol;
s = getaddrinfo(host, port, &hints, &result);
if (s != 0) {
LOGE("getaddrinfo: %s", gai_strerror(s));
return -1;
}
rp = result;
/*
* On Linux, with net.ipv6.bindv6only = 0 (the default), getaddrinfo(NULL) with
* AI_PASSIVE returns 0.0.0.0 and :: (in this order). AI_PASSIVE was meant to
* return a list of addresses to listen on, but it is impossible to listen on
* 0.0.0.0 and :: at the same time, if :: implies dualstack mode.
*/
if (!host) {
ipv4v6bindall = result;
/* Loop over all address infos found until a IPV6 address is found. */
while (ipv4v6bindall) {
if (ipv4v6bindall->ai_family == AF_INET6) {
rp = ipv4v6bindall; /* Take first IPV6 address available */
break;
}
ipv4v6bindall = ipv4v6bindall->ai_next; /* Get next address info, if any */
}
}
for (/*rp = result*/; rp != NULL; rp = rp->ai_next) {
listen_sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (listen_sock == -1) {
continue;
}
if (rp->ai_family == AF_INET6) {
int ipv6only = host ? 1 : 0;
setsockopt(listen_sock, IPPROTO_IPV6, IPV6_V6ONLY, &ipv6only, sizeof(ipv6only));
}
int opt = 1;
setsockopt(listen_sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
#ifdef SO_NOSIGPIPE
setsockopt(listen_sock, SOL_SOCKET, SO_NOSIGPIPE, &opt, sizeof(opt));
#endif
s = bind(listen_sock, rp->ai_addr, rp->ai_addrlen);
if (s == 0) {
/* We managed to bind successfully! */
close(listen_sock);
break;
} else {
ERROR("bind");
}
}
if (result != NULL) {
freeaddrinfo(result);
}
if (rp == NULL) {
LOGE("Could not bind");
return -1;
}
return listen_sock;
}
static int
check_port(struct manager_ctx *manager, struct server *server)
{
bool both_tcp_udp = manager->mode == TCP_AND_UDP;
int fd_count = manager->host_num * (both_tcp_udp ? 2 : 1);
int bind_err = 0;
int *sock_fds = (int *)ss_malloc(fd_count * sizeof(int));
memset(sock_fds, 0, fd_count * sizeof(int));
/* try to bind each interface */
for (int i = 0; i < manager->host_num; i++) {
LOGI("try to bind interface: %s, port: %s", manager->hosts[i], server->port);
if (manager->mode == UDP_ONLY) {
sock_fds[i] = create_and_bind(manager->hosts[i], server->port, IPPROTO_UDP);
} else {
sock_fds[i] = create_and_bind(manager->hosts[i], server->port, IPPROTO_TCP);
}
if (both_tcp_udp) {
sock_fds[i + manager->host_num] = create_and_bind(manager->hosts[i], server->port, IPPROTO_UDP);
}
if (sock_fds[i] == -1 || (both_tcp_udp && sock_fds[i + manager->host_num] == -1)) {
bind_err = -1;
break;
}
}
/* clean socks */
for (int i = 0; i < fd_count; i++)
if (sock_fds[i] > 0) {
close(sock_fds[i]);
}
ss_free(sock_fds);
return bind_err == -1 ? -1 : 0;
}
static int
add_server(struct manager_ctx *manager, struct server *server)
{
int ret = check_port(manager, server);
if (ret == -1) {
LOGE("port is not available, please check.");
return -1;
}
bool new = false;
cork_hash_table_put(server_table, (void *)server->port, (void *)server, &new, NULL, NULL);
char *cmd = construct_command_line(manager, server);
if (system(cmd) == -1) {
ERROR("add_server_system");
return -1;
}
return 0;
}
static void
kill_server(char *prefix, char *pid_file)
{
char *path = NULL;
int pid, path_size = strlen(prefix) + strlen(pid_file) + 2;
path = ss_malloc(path_size);
snprintf(path, path_size, "%s/%s", prefix, pid_file);
FILE *f = fopen(path, "r");
if (f == NULL) {
if (verbose) {
LOGE("unable to open pid file");
}
ss_free(path);
return;
}
if (fscanf(f, "%d", &pid) != EOF) {
kill(pid, SIGTERM);
}
fclose(f);
remove(path);
ss_free(path);
}
static void
stop_server(char *prefix, char *port)
{
char *path = NULL;
int pid, path_size = strlen(prefix) + strlen(port) + 20;
path = ss_malloc(path_size);
snprintf(path, path_size, "%s/.shadowsocks_%s.pid", prefix, port);
FILE *f = fopen(path, "r");
if (f == NULL) {
if (verbose) {
LOGE("unable to open pid file");
}
ss_free(path);
return;
}
if (fscanf(f, "%d", &pid) != EOF) {
kill(pid, SIGTERM);
}
fclose(f);
ss_free(path);
}
static void
remove_server(char *prefix, char *port)
{
char *old_port = NULL;
struct server *old_server = NULL;
cork_hash_table_delete(server_table, (void *)port, (void **)&old_port, (void **)&old_server);
if (old_server != NULL) {
destroy_server(old_server);
ss_free(old_server);
}
stop_server(prefix, port);
}
static void
update_stat(char *port, uint64_t traffic)
{
if (verbose) {
LOGI("update traffic %" PRIu64 " for port %s", traffic, port);
}
void *ret = cork_hash_table_get(server_table, (void *)port);
if (ret != NULL) {
struct server *server = (struct server *)ret;
server->traffic = traffic;
}
}
static void
manager_recv_cb(EV_P_ ev_io *w, int revents)
{
struct manager_ctx *manager = (struct manager_ctx *)w;
socklen_t len;
ssize_t r;
struct sockaddr_un claddr;
char buf[BUF_SIZE];
memset(buf, 0, BUF_SIZE);
len = sizeof(struct sockaddr_un);
r = recvfrom(manager->fd, buf, BUF_SIZE, 0, (struct sockaddr *)&claddr, &len);
if (r == -1) {
ERROR("manager_recvfrom");
return;
}
if (r > BUF_SIZE / 2) {
LOGE("too large request: %d", (int)r);
return;
}
// properly terminate string which recvfrom does not do
buf[r] = '\0';
char *action = get_action(buf, r);
if (action == NULL) {
return;
}
if (strcmp(action, "add") == 0) {
struct server *server = get_server(buf, r);
if (server == NULL || server->port[0] == 0 || server->password[0] == 0) {
LOGE("invalid command: %s:%s", buf, get_data(buf, r));
if (server != NULL) {
destroy_server(server);
ss_free(server);
}
goto ERROR_MSG;
}
remove_server(working_dir, server->port);
int ret = add_server(manager, server);
char *msg;
int msg_len;
if (ret == -1) {
msg = "port is not available";
msg_len = 21;
} else {
msg = "ok";
msg_len = 2;
}
if (sendto(manager->fd, msg, msg_len, 0, (struct sockaddr *)&claddr, len) != 2) {
ERROR("add_sendto");
}
} else if (strcmp(action, "list") == 0) {
struct cork_hash_table_iterator iter;
struct cork_hash_table_entry *entry;
char buf[BUF_SIZE];
memset(buf, 0, BUF_SIZE);
sprintf(buf, "[");
cork_hash_table_iterator_init(server_table, &iter);
while ((entry = cork_hash_table_iterator_next(&iter)) != NULL) {
struct server *server = (struct server *)entry->value;
char *method = server->method ? server->method : manager->method;
size_t pos = strlen(buf);
size_t entry_len = strlen(server->port) + strlen(server->password) + strlen(method);
if (pos > BUF_SIZE - entry_len - 50) {
if (sendto(manager->fd, buf, pos, 0, (struct sockaddr *)&claddr, len)
!= pos) {
ERROR("list_sendto");
}
memset(buf, 0, BUF_SIZE);
pos = 0;
}
sprintf(buf + pos, "\n\t{\"server_port\":\"%s\",\"password\":\"%s\",\"method\":\"%s\"},",
server->port, server->password, method);
}
size_t pos = strlen(buf);
strcpy(buf + max(pos - 1, 1), "\n]"); // Remove trailing ","
pos = strlen(buf);
if (sendto(manager->fd, buf, pos, 0, (struct sockaddr *)&claddr, len)
!= pos) {
ERROR("list_sendto");
}
} else if (strcmp(action, "remove") == 0) {
struct server *server = get_server(buf, r);
if (server == NULL || server->port[0] == 0) {
LOGE("invalid command: %s:%s", buf, get_data(buf, r));
if (server != NULL) {
destroy_server(server);
ss_free(server);
}
goto ERROR_MSG;
}
remove_server(working_dir, server->port);
destroy_server(server);
ss_free(server);
char msg[3] = "ok";
if (sendto(manager->fd, msg, 2, 0, (struct sockaddr *)&claddr, len) != 2) {
ERROR("remove_sendto");
}
} else if (strcmp(action, "stat") == 0) {
char port[8];
uint64_t traffic = 0;
if (parse_traffic(buf, r, port, &traffic) == -1) {
LOGE("invalid command: %s:%s", buf, get_data(buf, r));
return;
}
update_stat(port, traffic);
} else if (strcmp(action, "ping") == 0) {
struct cork_hash_table_entry *entry;
struct cork_hash_table_iterator server_iter;
char buf[BUF_SIZE];
memset(buf, 0, BUF_SIZE);
sprintf(buf, "stat: {");
cork_hash_table_iterator_init(server_table, &server_iter);
while ((entry = cork_hash_table_iterator_next(&server_iter)) != NULL) {
struct server *server = (struct server *)entry->value;
size_t pos = strlen(buf);
if (pos > BUF_SIZE / 2) {
buf[pos - 1] = '}';
if (sendto(manager->fd, buf, pos, 0, (struct sockaddr *)&claddr, len)
!= pos) {
ERROR("ping_sendto");
}
memset(buf, 0, BUF_SIZE);
} else {
sprintf(buf + pos, "\"%s\":%" PRIu64 ",", server->port, server->traffic);
}
}
size_t pos = strlen(buf);
if (pos > 7) {
buf[pos - 1] = '}';
} else {
buf[pos] = '}';
pos++;
}
if (sendto(manager->fd, buf, pos, 0, (struct sockaddr *)&claddr, len)
!= pos) {
ERROR("ping_sendto");
}
}
return;
ERROR_MSG:
strcpy(buf, "err");
if (sendto(manager->fd, buf, 3, 0, (struct sockaddr *)&claddr, len) != 3) {
ERROR("error_sendto");
}
}
static void
signal_cb(EV_P_ ev_signal *w, int revents)
{
if (revents & EV_SIGNAL) {
switch (w->signum) {
case SIGINT:
case SIGTERM:
ev_unloop(EV_A_ EVUNLOOP_ALL);
}
}
}
int
create_server_socket(const char *host, const char *port)
{
struct addrinfo hints;
struct addrinfo *result, *rp, *ipv4v6bindall;
int s, server_sock;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC; /* Return IPv4 and IPv6 choices */
hints.ai_socktype = SOCK_DGRAM; /* We want a UDP socket */
hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; /* For wildcard IP address */
hints.ai_protocol = IPPROTO_UDP;
s = getaddrinfo(host, port, &hints, &result);
if (s != 0) {
LOGE("getaddrinfo: %s", gai_strerror(s));
return -1;
}
rp = result;
/*
* On Linux, with net.ipv6.bindv6only = 0 (the default), getaddrinfo(NULL) with
* AI_PASSIVE returns 0.0.0.0 and :: (in this order). AI_PASSIVE was meant to
* return a list of addresses to listen on, but it is impossible to listen on
* 0.0.0.0 and :: at the same time, if :: implies dualstack mode.
*/
if (!host) {
ipv4v6bindall = result;
/* Loop over all address infos found until a IPV6 address is found. */
while (ipv4v6bindall) {
if (ipv4v6bindall->ai_family == AF_INET6) {
rp = ipv4v6bindall; /* Take first IPV6 address available */
break;
}
ipv4v6bindall = ipv4v6bindall->ai_next; /* Get next address info, if any */
}
}
for (/*rp = result*/; rp != NULL; rp = rp->ai_next) {
server_sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (server_sock == -1) {
continue;
}
if (rp->ai_family == AF_INET6) {
int ipv6only = host ? 1 : 0;
setsockopt(server_sock, IPPROTO_IPV6, IPV6_V6ONLY, &ipv6only, sizeof(ipv6only));
}
int opt = 1;
setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
s = bind(server_sock, rp->ai_addr, rp->ai_addrlen);
if (s == 0) {
/* We managed to bind successfully! */
break;
} else {
ERROR("bind");
}
close(server_sock);
}
if (result != NULL) {
freeaddrinfo(result);
}
if (rp == NULL) {
LOGE("cannot bind");
return -1;
}
return server_sock;
}
int
main(int argc, char **argv)
{
int i, c;
int pid_flags = 0;
char *acl = NULL;
char *user = NULL;
char *password = NULL;
char *timeout = NULL;
char *method = NULL;
char *pid_path = NULL;
char *conf_path = NULL;
char *iface = NULL;
char *manager_address = NULL;
char *plugin = NULL;
char *plugin_opts = NULL;
char *workdir = NULL;
int fast_open = 0;
int no_delay = 0;
int reuse_port = 0;
int mode = TCP_ONLY;
int mtu = 0;
int ipv6first = 0;
#ifdef HAVE_SETRLIMIT
static int nofile = 0;
#endif
int server_num = 0;
char *server_host[MAX_REMOTE_NUM];
char *nameservers = NULL;
jconf_t *conf = NULL;
static struct option long_options[] = {
{ "fast-open", no_argument, NULL, GETOPT_VAL_FAST_OPEN },
{ "no-delay", no_argument, NULL, GETOPT_VAL_NODELAY },
{ "reuse-port", no_argument, NULL, GETOPT_VAL_REUSE_PORT },
{ "acl", required_argument, NULL, GETOPT_VAL_ACL },
{ "manager-address", required_argument, NULL,
GETOPT_VAL_MANAGER_ADDRESS },
{ "executable", required_argument, NULL,
GETOPT_VAL_EXECUTABLE },
{ "mtu", required_argument, NULL, GETOPT_VAL_MTU },
{ "plugin", required_argument, NULL, GETOPT_VAL_PLUGIN },
{ "plugin-opts", required_argument, NULL, GETOPT_VAL_PLUGIN_OPTS },
{ "password", required_argument, NULL, GETOPT_VAL_PASSWORD },
{ "workdir", required_argument, NULL, GETOPT_VAL_WORKDIR },
{ "help", no_argument, NULL, GETOPT_VAL_HELP },
{ NULL, 0, NULL, 0 }
};
opterr = 0;
USE_TTY();
while ((c = getopt_long(argc, argv, "f:s:l:k:t:m:c:i:d:a:n:D:6huUvA",
long_options, NULL)) != -1)
switch (c) {
case GETOPT_VAL_REUSE_PORT:
reuse_port = 1;
break;
case GETOPT_VAL_FAST_OPEN:
fast_open = 1;
break;
case GETOPT_VAL_NODELAY:
no_delay = 1;
break;
case GETOPT_VAL_ACL:
acl = optarg;
break;
case GETOPT_VAL_MANAGER_ADDRESS:
manager_address = optarg;
break;
case GETOPT_VAL_EXECUTABLE:
executable = optarg;
break;
case GETOPT_VAL_MTU:
mtu = atoi(optarg);
break;
case GETOPT_VAL_PLUGIN:
plugin = optarg;
break;
case GETOPT_VAL_PLUGIN_OPTS:
plugin_opts = optarg;
break;
case 's':
if (server_num < MAX_REMOTE_NUM) {
server_host[server_num++] = optarg;
}
break;
case GETOPT_VAL_PASSWORD:
case 'k':
password = optarg;
break;
case 'f':
pid_flags = 1;
pid_path = optarg;
break;
case 't':
timeout = optarg;
break;
case 'm':
method = optarg;
break;
case 'c':
conf_path = optarg;
break;
case 'i':
iface = optarg;
break;
case 'd':
nameservers = optarg;
break;
case 'a':
user = optarg;
break;
case 'u':
mode = TCP_AND_UDP;
break;
case 'U':
mode = UDP_ONLY;
break;
case '6':
ipv6first = 1;
break;
case GETOPT_VAL_WORKDIR:
case 'D':
workdir = optarg;
break;
case 'v':
verbose = 1;
break;
case GETOPT_VAL_HELP:
case 'h':
usage();
exit(EXIT_SUCCESS);
#ifdef HAVE_SETRLIMIT
case 'n':
nofile = atoi(optarg);
break;
#endif
case 'A':
FATAL("One time auth has been deprecated. Try AEAD ciphers instead.");