以前紹介したTP-LINK WiFiスマートプラグ制御をPC(Linux/Windows等)から実行できるプログラムを作ってみた。コマンドライン・オプションによりオン・オフしたりできる。
TP-LINK WiFiスマートプラグをESP32(Arduino)から制御する
紹介元サイトで公開されているPythonで書かれたtplink_smartplug.pyをC言語に移殖(というかほぼ全部書き換え)したもので、OrangePi/RaspberryPiなどのLinuxやWindows上で実行することができる。Linuxはgcc、WindowsはMSYS2 MinGW64にてwsock32とws2_32ライブラリのリンクが必要となる。
https://github.com/softScheck/tplink-smartplug
スマートプラグのアドレスを調べるために元プログラムにデバイス検出機能を追加してみたが、実際に使う場合にはルーター等のDHCPにて固定アドレスを割り当てしたほうが良いだろう。
しかし、Pythonに比べるとコードがバカデカイ。個人的にはあまり好きではないがPythonでの開発って凄く効率よさげだなと思ったりも．．．
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/* TP-Link Wi-Fi Smart Plug Protocol Client For use with TP-Link HS-100 or HS-105 or HS-110 Copyright 2019 Sasapea's Lab. (Porting C from Python) by Lubomir Stroetmann Copyright 2016 softScheck GmbH Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ #include <stdio.h> #include <stdint.h> #include <stdbool.h> #include <stdarg.h> #include <stdlib.h> #include <string.h> #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) #include <ws2tcpip.h> #define socket_error(s) wsa_error(WSAGetLastError(), s) #else #include <unistd.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <netdb.h> #define SOCKET int #define socket_error(s) perror(s) #define closesocket(s) close(s) #endif #define VERSION "1.0" #define PORT "9999" #define DISCOVER_IP "255.255.255.255" #define DISCOVER_HS105 "{\"system\":{\"get_sysinfo\":null}}" #define DISCOVER_HS110 "{\"system\":{\"get_sysinfo\":null},\"emeter\":{\"get_realtime\":null}}" #define STARTING_KEY 171 /** * Predefined Smart Plug Commands * For a full list of commands, consult tplink_commands.txt **/ const char *commands[][2] = { { "info" , "{\"system\":{\"get_sysinfo\":{}}}" }, { "on" , "{\"system\":{\"set_relay_state\":{\"state\":1}}}" }, { "off" , "{\"system\":{\"set_relay_state\":{\"state\":0}}}" }, { "cloudinfo", "{\"cnCloud\":{\"get_info\":{}}}" }, { "wlanscan" , "{\"netif\":{\"get_scaninfo\":{\"refresh\":0}}}" }, { "time" , "{\"time\":{\"get_time\":{}}}" }, { "schedule" , "{\"schedule\":{\"get_rules\":{}}}" }, { "countdown", "{\"count_down\":{\"get_rules\":{}}}" }, { "antitheft", "{\"anti_theft\":{\"get_rules\":{}}}" }, { "reboot" , "{\"system\":{\"reboot\":{\"delay\":1}}}" }, { "reset" , "{\"system\":{\"reset\":{\"delay\":1}}}" }, { "energy" , "{\"emeter\":{\"get_realtime\":{}}}" }, }; #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) const struct { int err_code; char *err_str; } errors[] = { { WSAEINTR , "WSAEINTR" }, { WSAEACCES , "WSAEACCES" }, { WSAEFAULT , "WSAEFAULT" }, { WSAEINVAL , "WSAEINVAL" }, { WSAEMFILE , "WSAEMFILE" }, { WSAEWOULDBLOCK , "WSAEWOULDBLOCK" }, { WSAEINPROGRESS , "WSAEINPROGRESS" }, { WSAEALREADY , "WSAEALREADY" }, { WSAENOTSOCK , "WSAENOTSOCK" }, { WSAEDESTADDRREQ , "WSAEDESTADDRREQ" }, { WSAEMSGSIZE , "WSAEMSGSIZE" }, { WSAEPROTOTYPE , "WSAEPROTOTYPE" }, { WSAENOPROTOOPT , "WSAENOPROTOOPT" }, { WSAEPROTONOSUPPORT, "WSAEPROTONOSUPPORT" }, { WSAESOCKTNOSUPPORT, "WSAESOCKTNOSUPPORT" }, { WSAEOPNOTSUPP , "WSAEOPNOTSUPP" }, { WSAEPFNOSUPPORT , "WSAEPFNOSUPPORT" }, { WSAEAFNOSUPPORT , "WSAEAFNOSUPPORT" }, { WSAEADDRINUSE , "WSAEADDRINUSE" }, { WSAEADDRNOTAVAIL , "WSAEADDRNOTAVAIL" }, { WSAENETDOWN , "WSAENETDOWN" }, { WSAENETUNREACH , "WSAENETUNREACH" }, { WSAENETRESET , "WSAENETRESET" }, { WSAECONNABORTED , "WSAECONNABORTED" }, { WSAECONNRESET , "WSAECONNRESET" }, { WSAENOBUFS , "WSAENOBUFS" }, { WSAEISCONN , "WSAEISCONN" }, { WSAENOTCONN , "WSAENOTCONN" }, { WSAESHUTDOWN , "WSAESHUTDOWN" }, { WSAETIMEDOUT , "WSAETIMEDOUT" }, { WSAECONNREFUSED , "WSAECONNREFUSED" }, { WSAEHOSTDOWN , "WSAEHOSTDOWN" }, { WSAEHOSTUNREACH , "WSAEHOSTUNREACH" }, { WSAEPROCLIM , "WSAEPROCLIM" }, { WSASYSNOTREADY , "WSASYSNOTREADY" }, { WSAVERNOTSUPPORTED, "WSAVERNOTSUPPORTED" }, { WSANOTINITIALISED , "WSANOTINITIALISED" }, { WSAEDISCON , "WSAEDISCON" }, { WSATYPE_NOT_FOUND , "WSATYPE_NOT_FOUND" }, { WSAHOST_NOT_FOUND , "WSAHOST_NOT_FOUND" }, { WSATRY_AGAIN , "WSATRY_AGAIN" }, { WSANO_RECOVERY , "WSANO_RECOVERY" }, { WSANO_DATA , "WSANO_DATA" }, }; void wsa_error(int err_code, const char *format, ...) { va_list arg; char *err_str = NULL; int i; for (i = 0; i < sizeof(errors) / sizeof(errors[0]); i++) { if (errors[i].err_code == err_code) { err_str = errors[i].err_str; break; } } va_start(arg, format); vfprintf(stderr, format, arg); va_end(arg); if (err_str) fprintf(stderr, ": %s\n", err_str); else fprintf(stderr, ": %d\n", err_code); } #endif struct { uint32_t size; char data[768]; } packet; /** * Encryption and Decryption of TP-Link Smart Home Protocol * XOR Autokey Cipher with starting key = 171 **/ void encrypt() { char key = STARTING_KEY; uint32_t i; for (i = 0; i < packet.size; ++i) packet.data[i] = key = key ^ packet.data[i]; packet.size = htonl(packet.size); } void decrypt() { char key = STARTING_KEY; uint32_t i; packet.size = ntohl(packet.size); for (i = 0; i < packet.size; ++i) { char b = packet.data[i]; packet.data[i] = key ^ b; key = b; } packet.data[packet.size] = 0; } bool recv_fill(SOCKET sock, char *buf, size_t len) { ssize_t n; size_t i; for (i = 0; i < len; i += n) { if ((n = recv(sock, buf + i, len - i, 0)) == 0) { fprintf(stderr, "recv() aborted\n"); return false; } if (n == -1) { socket_error("recv()"); return false; } } return true; } /** * Send command and receive reply **/ int smartplug(SOCKET sock, const char *cmd) { packet.size = snprintf(packet.data, sizeof(packet.data), "%s", cmd); size_t size = sizeof(packet.size) + packet.size; encrypt(); if (send(sock, (char *)&packet, size, 0) != size) socket_error("send()"); else { if (recv_fill(sock, (char *)&packet.size, sizeof(packet.size))) { size = ntohl(packet.size); if (size < sizeof(packet.data) - 1) { if (recv_fill(sock, packet.data, size)) { decrypt(); fprintf(stdout, "%s\n", packet.data); return EXIT_SUCCESS; } } } } return EXIT_FAILURE; } struct addrinfo *gethostinfo(const char *host, const char *port) { int rv; struct addrinfo hints, *result = NULL; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_UNSPEC; // IPv4 or IPv6 hints.ai_socktype = SOCK_STREAM; if ((rv = getaddrinfo(host, port, &hints, &result)) != 0) #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) wsa_error(rv, "getaddrinfo(\"%s\")", host); #else fprintf(stderr, "getaddrinfo(\"%s\"): %s\n", host, gai_strerror(rv)); #endif return result; } SOCKET connect_socket(const char *host, const char *port) { SOCKET sock = -1; struct addrinfo *info, *node; if (info = gethostinfo(host, port)) { for (node = info; node; node = node->ai_next) { if ((sock = socket(node->ai_family, node->ai_socktype, node->ai_protocol)) == -1) { if (!node->ai_next) socket_error("socket()"); } else if (connect(sock, node->ai_addr, node->ai_addrlen) == -1) { if (!node->ai_next) socket_error("connect()"); closesocket(sock); sock = -1; } else break; } freeaddrinfo(info); } return sock; } int scan_smartplugs() { int rv = EXIT_FAILURE; struct addrinfo hints, *result = NULL; memset(&hints, 0, sizeof(hints)); hints.ai_flags = 0; hints.ai_family = AF_INET; // IPv4 hints.ai_socktype = SOCK_DGRAM; if ((rv = getaddrinfo(DISCOVER_IP, PORT, &hints, &result)) != 0) #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) wsa_error(rv, "getaddrinfo(\"%s\")", DISCOVER_IP); #else fprintf(stderr, "getaddrinfo(\"%s\"): %s\n", DISCOVER_IP, gai_strerror(rv)); #endif else { const int on = 1; SOCKET sock; if ((sock = socket(result->ai_family, result->ai_socktype, result->ai_protocol)) == -1) socket_error("socket()"); else { size_t size = packet.size = snprintf(packet.data, sizeof(packet.data), "%s", DISCOVER_HS105); encrypt(); if (setsockopt(sock, SOL_SOCKET, SO_BROADCAST, (char *)&on, sizeof(on)) == -1) socket_error("setsockopt()"); else if (sendto(sock, packet.data, size, 0, result->ai_addr, result->ai_addrlen) == -1) socket_error("sendto()"); else { while (1) { int len; struct sockaddr_in from; socklen_t fromlen; struct timeval timeout; fd_set readfds; FD_ZERO(&readfds); FD_SET(sock, &readfds); timeout.tv_sec = 3; timeout.tv_usec = 0; if ((len = select(sock + 1, &readfds, NULL, NULL, &timeout)) <= 0) { if (len == 0) rv = EXIT_SUCCESS; else socket_error("select()"); break; } fromlen = sizeof(from); if ((len = recvfrom(sock, packet.data, sizeof(packet.data), 0, (struct sockaddr *)&from, &fromlen)) == -1) { socket_error("recvfrom()"); break; } else if (len >= 0) { printf("[%s]\n", inet_ntoa(from.sin_addr)); if (len > 0) { packet.size = htonl(len); decrypt(); printf("%s\n", packet.data); } } } } closesocket(sock); } freeaddrinfo(result); } return rv; } void usage() { fprintf(stderr, "\n"); fprintf(stderr, "TP-Link Wi-Fi Smart Plug Client v" VERSION "\n"); fprintf(stderr, "\n"); fprintf(stderr, "Usage: tplink-smartplug [-h] -t <hostname> {-c <command> | -j <JSON string>}\n"); fprintf(stderr, "\n"); fprintf(stderr, "optional arguments:\n"); fprintf(stderr, " -h Show this help message and exit\n"); fprintf(stderr, " -d Device Discovery\n"); fprintf(stderr, " -t <hostname> Target hostname or IP address\n"); fprintf(stderr, " -c <command> Preset command to send. Choices are: info, on, off,\n"); fprintf(stderr, " cloudinfo, wlanscan, time, schedule, countdown,\n"); fprintf(stderr, " antitheft, reboot, reset, energy\n"); fprintf(stderr, " -j <JSON string> Full JSON string of command to send\n"); } #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) int main0(int argc, char **argv) #else int main(int argc, char **argv) #endif { char *host = ""; char *cmd = ""; char *json = ""; bool help = false; bool scan = false; int i, rv = EXIT_FAILURE; SOCKET sock; for (i = 1; i < argc; ) { char *p = argv[i++]; if (*p == '-') { switch (p[1]) { case 't': if (i < argc) host = argv[i++]; break; case 'c': if (i < argc) cmd = argv[i++]; break; case 'j': if (i < argc) json = argv[i++]; break; case 'd': scan = true; break; default: case 'h': help = true; break; } } else help = true; } if (*cmd) { for (i = 0; i < sizeof(commands) / sizeof(commands[0]); ++i) { if (strcmp(cmd, commands[i][0]) == 0) { json = (char *)commands[i][1]; break; } } } if (help || (!scan && (!*host || !*json))) usage(); else if (scan) { scan_smartplugs(); rv = EXIT_SUCCESS; } else if ((sock = connect_socket(host, PORT)) != -1) { rv = smartplug(sock, json); closesocket(sock); } return rv; } #if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__) int main(int argc, char **argv) { WSADATA wsaData; if (WSAStartup(MAKEWORD(2, 0), &wsaData) == 0) { int rv = main0(argc, argv); WSACleanup(); return rv; } socket_error("WSAStartup()"); return EXIT_FAILURE; } #endif |
【関連投稿】
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