mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-19 04:57:53 +00:00
299 lines
8.0 KiB
C++
299 lines
8.0 KiB
C++
/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2012-2013 ZeroTier Networks LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <iostream>
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#include "node/Identity.hpp"
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#include "node/Utils.hpp"
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using namespace ZeroTier;
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static void printHelp(char *pn)
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{
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std::cout << "Usage: " << pn << " <command> [<args>]" << std::endl << std::endl;
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std::cout << "Commands:" << std::endl;
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std::cout << "\tgenerate [<identity.secret>]" << std::endl;
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std::cout << "\tvalidate <identity.secret/public>" << std::endl;
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std::cout << "\tgetpublic <identity.secret>" << std::endl;
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std::cout << "\tsign <identity.secret> <file>" << std::endl;
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std::cout << "\tverify <identity.secret/public> <file> <signature>" << std::endl;
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std::cout << "\tencrypt <identity.secret> <identity.public (recipient)> [<file>] [<outfile>]" << std::endl;
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std::cout << "\tdecrypt <identity.secret> <identity.public (sender)> [<file>] [<outfile>]" << std::endl;
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}
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static Identity getIdFromArg(char *arg)
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{
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Identity id;
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if ((strlen(arg) > 32)&&(arg[10] == ':')) { // identity is a literal on the command line
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if (id.fromString(arg))
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return id;
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} else { // identity is to be read from a file
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std::string idser;
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if (Utils::readFile(arg,idser)) {
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if (id.fromString(idser))
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return id;
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}
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}
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return Identity();
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}
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int main(int argc,char **argv)
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{
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if (argc < 2) {
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printHelp(argv[0]);
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return -1;
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}
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if (!strcmp(argv[1],"generate")) {
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Identity id;
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id.generate();
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std::string idser = id.toString(true);
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if (argc >= 3) {
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if (!Utils::writeFile(argv[2],idser)) {
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std::cerr << "Error writing to " << argv[2] << std::endl;
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return -1;
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} else std::cout << argv[2] << " written" << std::endl;
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} else std::cout << idser;
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} else if (!strcmp(argv[1],"validate")) {
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if (argc < 3) {
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printHelp(argv[0]);
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return -1;
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}
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Identity id = getIdFromArg(argv[2]);
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if (!id) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[2] << std::endl;
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return -1;
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}
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if (!id.locallyValidate(true)) {
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std::cerr << argv[2] << " FAILED validation." << std::endl;
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return -1;
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} else std::cout << argv[2] << " is a valid identity (full check performed)" << std::endl;
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} else if (!strcmp(argv[1],"getpublic")) {
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if (argc < 3) {
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printHelp(argv[0]);
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return -1;
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}
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Identity id = getIdFromArg(argv[2]);
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if (!id) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[2] << std::endl;
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return -1;
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}
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std::cout << id.toString(false);
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} else if (!strcmp(argv[1],"sign")) {
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if (argc < 4) {
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printHelp(argv[0]);
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return -1;
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}
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Identity id = getIdFromArg(argv[2]);
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if (!id) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[2] << std::endl;
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return -1;
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}
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if (!id.hasPrivate()) {
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std::cerr << argv[2] << " does not contain a private key (must use private to sign)" << std::endl;
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return -1;
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}
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std::string inf;
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if (!Utils::readFile(argv[3],inf)) {
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std::cerr << argv[3] << " is not readable" << std::endl;
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return -1;
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}
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std::string signature = id.sign(inf.data(),inf.length());
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if (!signature.length()) {
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std::cerr << "Error computing SHA256 or signature (bug?)" << std::endl;
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return -1;
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}
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std::cout << Utils::base64Encode(signature.data(),signature.length());
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} else if (!strcmp(argv[1],"verify")) {
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if (argc < 4) {
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printHelp(argv[0]);
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return -1;
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}
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Identity id = getIdFromArg(argv[2]);
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if (!id) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[2] << std::endl;
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return -1;
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}
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std::string inf;
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if (!Utils::readFile(argv[3],inf)) {
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std::cerr << argv[3] << " is not readable" << std::endl;
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return -1;
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}
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std::string signature(Utils::base64Decode(argv[4],strlen(argv[4])));
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if ((signature.length() > ZEROTIER_ADDRESS_LENGTH)&&(id.verifySignature(inf.data(),inf.length(),signature))) {
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std::cout << argv[3] << " signature valid" << std::endl;
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} else {
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std::cerr << argv[3] << " signature check FAILED" << std::endl;
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return -1;
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}
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} else if (!strcmp(argv[1],"encrypt")) {
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if (argc < 4) {
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printHelp(argv[0]);
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return -1;
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}
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Identity from = getIdFromArg(argv[2]);
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if (!from) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[2] << std::endl;
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return -1;
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}
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if (!from.hasPrivate()) {
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std::cerr << argv[2] << " must contain a secret key" << std::endl;
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return -1;
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}
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Identity to = getIdFromArg(argv[3]);
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if (!to) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[3] << std::endl;
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return -1;
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}
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FILE *inf;
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if (argc > 4) {
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inf = fopen(argv[4],"r");
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if (!inf) {
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std::cerr << "Could not open input file " << argv[4] << std::endl;
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return -1;
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}
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} else inf = stdin;
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int inbuflen = 131072;
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char *inbuf = (char *)malloc(inbuflen);
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if (!inbuf) {
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std::cerr << "Could not malloc()" << std::endl;
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return -1;
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}
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int inlen = 0;
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int n;
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while ((n = (int)fread(inbuf + inlen,1,inbuflen - inlen,inf)) > 0) {
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inlen += n;
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if ((inbuflen - inlen) < 1024) {
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inbuf = (char *)realloc(inbuf,inbuflen += 131072);
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if (!inbuf) {
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std::cerr << "Could not malloc()" << std::endl;
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return -1;
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}
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}
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}
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if (inf != stdin)
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fclose(inf);
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std::string crypted(from.encrypt(to,inbuf,inlen));
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if (!crypted.length()) {
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std::cerr << "Failure encrypting data, check from/to identities" << std::endl;
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return -1;
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}
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if (argc > 5)
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Utils::writeFile(argv[5],crypted.data(),crypted.length());
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else fwrite(crypted.data(),1,crypted.length(),stdout);
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free(inbuf);
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} else if (!strcmp(argv[1],"decrypt")) {
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if (argc < 4) {
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printHelp(argv[0]);
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return -1;
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}
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Identity to = getIdFromArg(argv[2]);
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if (!to) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[2] << std::endl;
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return -1;
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}
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if (!to.hasPrivate()) {
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std::cerr << argv[2] << " must contain a secret key" << std::endl;
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return -1;
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}
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Identity from = getIdFromArg(argv[3]);
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if (!from) {
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std::cerr << "Identity argument invalid or file unreadable: " << argv[3] << std::endl;
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return -1;
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}
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FILE *inf;
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if (argc > 4) {
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inf = fopen(argv[4],"r");
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if (!inf) {
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std::cerr << "Could not open input file " << argv[4] << std::endl;
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return -1;
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}
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} else inf = stdin;
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int inbuflen = 131072;
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char *inbuf = (char *)malloc(inbuflen);
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if (!inbuf) {
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std::cerr << "Could not malloc()" << std::endl;
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return -1;
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}
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int inlen = 0;
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int n;
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while ((n = (int)fread(inbuf + inlen,1,inbuflen - inlen,inf)) > 0) {
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inlen += n;
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if ((inbuflen - inlen) < 1024) {
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inbuf = (char *)realloc(inbuf,inbuflen += 131072);
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if (!inbuf) {
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std::cerr << "Could not malloc()" << std::endl;
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return -1;
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}
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}
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}
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if (inf != stdin)
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fclose(inf);
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std::string dec(to.decrypt(from,inbuf,inlen));
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free(inbuf);
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if (!dec.length()) {
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std::cerr << "Failure decrypting data, check from/to identities" << std::endl;
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return -1;
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}
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if (argc > 5)
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Utils::writeFile(argv[5],dec.data(),dec.length());
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else fwrite(dec.data(),1,dec.length(),stdout);
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} else {
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printHelp(argv[0]);
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return -1;
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}
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return 0;
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}
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