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/*
* android.c - Setup IPC for shadowsocks-android
*
* Copyright (C) 2013 - 2019, Max Lv <max.c.lv@gmail.com>
*
* 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/>.
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <locale.h>
#include <signal.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <errno.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/un.h>
#include <ancillary.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "netutils.h"
#include "utils.h"
int
protect_socket(int fd)
{
int sock;
struct sockaddr_un addr;
if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
LOGE("[android] socket() failed: %s (socket fd = %d)\n", strerror(errno), sock);
return -1;
}
// Set timeout to 3s
struct timeval tv;
tv.tv_sec = 3;
tv.tv_usec = 0;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(struct timeval));
setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(struct timeval));
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, "protect_path", sizeof(addr.sun_path) - 1);
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
LOGE("[android] connect() failed for protect_path: %s (socket fd = %d)\n",
strerror(errno), sock);
close(sock);
return -1;
}
if (ancil_send_fd(sock, fd)) {
ERROR("[android] ancil_send_fd");
close(sock);
return -1;
}
char ret = 0;
if (recv(sock, &ret, 1, 0) == -1) {
ERROR("[android] recv");
close(sock);
return -1;
}
close(sock);
return ret;
}
extern char *stat_path;
int
send_traffic_stat(uint64_t tx, uint64_t rx)
{
if (!stat_path) return 0;
int sock;
struct sockaddr_un addr;
if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
LOGE("[android] socket() failed: %s (socket fd = %d)\n", strerror(errno), sock);
return -1;
}
// Set timeout to 1s
struct timeval tv;
tv.tv_sec = 1;
tv.tv_usec = 0;
setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(struct timeval));
setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(struct timeval));
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, stat_path, sizeof(addr.sun_path) - 1);
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
LOGE("[android] connect() failed for stat_path: %s (socket fd = %d)\n",
strerror(errno), sock);
close(sock);
return -1;
}
uint64_t stat[2] = { tx, rx };
if (send(sock, stat, sizeof(stat), 0) == -1) {
ERROR("[android] send");
close(sock);
return -1;
}
close(sock);
return 0;
}
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