summaryrefslogtreecommitdiff
path: root/node/SysEnv.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'node/SysEnv.cpp')
-rw-r--r--node/SysEnv.cpp224
1 files changed, 0 insertions, 224 deletions
diff --git a/node/SysEnv.cpp b/node/SysEnv.cpp
deleted file mode 100644
index fdf52f11..00000000
--- a/node/SysEnv.cpp
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * ZeroTier One - Global Peer to Peer Ethernet
- * Copyright (C) 2011-2014 ZeroTier Networks LLC
- *
- * This program 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.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * --
- *
- * ZeroTier may be used and distributed under the terms of the GPLv3, which
- * are available at: http://www.gnu.org/licenses/gpl-3.0.html
- *
- * If you would like to embed ZeroTier into a commercial application or
- * redistribute it in a modified binary form, please contact ZeroTier Networks
- * LLC. Start here: http://www.zerotier.com/
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/types.h>
-
-#include <set>
-#include <string>
-
-#include "Constants.hpp"
-#include "SysEnv.hpp"
-#include "Utils.hpp"
-#include "RuntimeEnvironment.hpp"
-#include "NodeConfig.hpp"
-
-#ifdef __UNIX_LIKE__
-#include <arpa/inet.h>
-#include <sys/socket.h>
-#include <unistd.h>
-#include <signal.h>
-#endif
-
-#ifdef __APPLE__
-#include <sys/sysctl.h>
-#include <sys/uio.h>
-#include <sys/param.h>
-#include <net/route.h>
-#endif
-
-#ifdef __WINDOWS__
-#include <Windows.h>
-#include <WinSock2.h>
-#endif
-
-namespace ZeroTier {
-
-SysEnv::SysEnv()
-{
-}
-
-SysEnv::~SysEnv()
-{
-}
-
-#ifdef __APPLE__
-
-uint64_t SysEnv::getNetworkConfigurationFingerprint(const std::set<std::string> &ignoreDevices)
-{
- int mib[6];
- size_t needed;
- uint64_t fingerprint = 5381; // djb2 hash algorithm is used below
-
- // Right now this just scans for changes in default routes. This is not
- // totally robust -- it will miss cases where we switch from one 10.0.0.0/24
- // network with gateway .1 to another -- but most of the time it'll pick
- // up shifts in connectivity. Combined with sleep/wake detection this seems
- // pretty solid so far on Mac for detecting when you change locations.
-
- mib[0] = CTL_NET;
- mib[1] = PF_ROUTE;
- mib[2] = 0;
- mib[3] = AF_UNSPEC;
- mib[4] = NET_RT_DUMP;
- mib[5] = 0;
- if (!sysctl(mib,6,NULL,&needed,NULL,0)) {
- char *buf = (char *)malloc(needed);
- if (buf) {
- if (!sysctl(mib,6,buf,&needed,NULL,0)) {
- struct rt_msghdr *rtm;
- for(char *next=buf,*end=buf+needed;next<end;) {
- rtm = (struct rt_msghdr *)next;
- char *saptr = (char *)(rtm + 1);
- char *saend = next + rtm->rtm_msglen;
- if (((rtm->rtm_addrs & RTA_DST))&&((rtm->rtm_addrs & RTA_GATEWAY))) {
- int sano = 0;
- struct sockaddr *dst = (struct sockaddr *)0;
- struct sockaddr *gateway = (struct sockaddr *)0;
- while (saptr < saend) {
- struct sockaddr *sa = (struct sockaddr *)saptr;
- if (!sa->sa_len)
- break;
- if (sano == 0)
- dst = sa;
- else if (sano == 1)
- gateway = sa;
- else if (sano > 1)
- break;
- ++sano;
- saptr += sa->sa_len;
- }
- if ((dst)&&(gateway)) {
- if ((dst->sa_family == AF_INET)&&(gateway->sa_family == AF_INET)&&(!((struct sockaddr_in *)dst)->sin_addr.s_addr)) {
- fingerprint = ((fingerprint << 5) + fingerprint) + (uint64_t)((struct sockaddr_in *)gateway)->sin_addr.s_addr;
- } else if ((dst->sa_family == AF_INET6)&&(gateway->sa_family == AF_INET6)&&(Utils::isZero(((struct sockaddr_in6 *)dst)->sin6_addr.s6_addr,16))) {
- for(unsigned int i=0;i<16;++i)
- fingerprint = ((fingerprint << 5) + fingerprint) + (uint64_t)((struct sockaddr_in6 *)gateway)->sin6_addr.s6_addr[i];
- }
- }
- }
- next = saend;
- }
- }
- free(buf);
- }
- }
-
- return fingerprint;
-}
-
-#endif // __APPLE__
-
-#if defined(__linux__) || defined(linux) || defined(__LINUX__) || defined(__linux)
-
-uint64_t SysEnv::getNetworkConfigurationFingerprint(const std::set<std::string> &ignoreDevices)
-{
- char buf[16384];
- uint64_t fingerprint = 5381; // djb2 hash algorithm is used below
- char *t1,*t2;
-
- try {
- // Include default IPv4 route if available
- int fd = open("/proc/net/route",O_RDONLY);
- if (fd > 0) {
- long n = read(fd,buf,sizeof(buf) - 1);
- ::close(fd);
- if (n > 0) {
- buf[n] = 0;
- for(char *line=strtok_r(buf,"\r\n",&t1);(line);line=strtok_r((char *)0,"\r\n",&t1)) {
- int fno = 0;
- for(char *field=strtok_r(line," \t",&t2);(field);field=strtok_r((char *)0," \t",&t2)) {
- if (fno == 0) { // device name
- if ((ignoreDevices.count(std::string(field)))||(!strcmp(field,"lo")))
- break;
- } else if ((fno == 1)||(fno == 2)) { // destination, gateway
- if (strlen(field) == 8) { // ignore header junk, use only hex route info
- while (*field)
- fingerprint = ((fingerprint << 5) + fingerprint) + (uint64_t)*(field++);
- }
- } else if (fno > 2)
- break;
- ++fno;
- }
- }
- }
- }
-
- // Include IPs of IPv6 enabled interfaces if available
- fd = open("/proc/net/if_inet6",O_RDONLY);
- if (fd > 0) {
- long n = read(fd,buf,sizeof(buf) - 1);
- ::close(fd);
- if (n > 0) {
- buf[n] = 0;
- for(char *line=strtok_r(buf,"\r\n",&t1);(line);line=strtok_r((char *)0,"\r\n",&t1)) {
- int fno = 0;
- const char *v6ip = (const char *)0;
- const char *devname = (const char *)0;
- for(char *field=strtok_r(line," \t",&t2);(field);field=strtok_r((char *)0," \t",&t2)) {
- switch(fno) {
- case 0:
- v6ip = field;
- break;
- case 5:
- devname = field;
- break;
- }
- ++fno;
- }
-
- if ((v6ip)&&(devname)) {
- if ((!(ignoreDevices.count(std::string(devname))))&&(strcmp(devname,"lo"))) {
- while (*v6ip)
- fingerprint = ((fingerprint << 5) + fingerprint) + (uint64_t)*(v6ip++);
- }
- }
- }
- }
- }
- } catch ( ... ) {}
-
- return fingerprint;
-}
-
-#endif // __linux__
-
-#ifdef __WINDOWS__
-
-uint64_t SysEnv::getNetworkConfigurationFingerprint(const std::set<std::string> &ignoreDevices)
-{
- // TODO: windows version
- return 1;
-}
-
-#endif // __WINDOWS__
-
-} // namespace ZeroTier
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-04 01:03:56 +0000