From de0a5aa8402523fc152495ba647974a8cb06c0e8 Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Fri, 23 Aug 2019 12:09:31 -0700
Subject: [PATCH] GitHub issue #994

---
 osdep/LinuxNetLink.cpp | 22 ++++++++++++++--------
 osdep/LinuxNetLink.hpp |  6 ++++++
 2 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/osdep/LinuxNetLink.cpp b/osdep/LinuxNetLink.cpp
index 8c2fc9d26..13e7176e4 100644
--- a/osdep/LinuxNetLink.cpp
+++ b/osdep/LinuxNetLink.cpp
@@ -11,6 +11,10 @@
  */
 /****/
 
+#include "../node/Constants.hpp"
+
+#ifdef __LINUX__
+
 #include "LinuxNetLink.hpp"
 
 #include <unistd.h>
@@ -53,7 +57,7 @@ LinuxNetLink::LinuxNetLink()
 	_setSocketTimeout(_fd, 1);
 
 	_la.nl_family = AF_NETLINK;
-	_la.nl_pid = getpid()+1;
+	_la.nl_pid = 0; //getpid()+1;
 	_la.nl_groups = RTMGRP_LINK|RTMGRP_IPV4_IFADDR|RTMGRP_IPV6_IFADDR|RTMGRP_IPV4_ROUTE|RTMGRP_IPV6_ROUTE|RTMGRP_NOTIFY;
 	if (bind(_fd, (struct sockaddr*)&_la, sizeof(_la))) {
 		fprintf(stderr, "Error connecting to RTNETLINK: %s\n", strerror(errno));
@@ -433,7 +437,7 @@ void LinuxNetLink::_requestIPv4Routes()
 
 	struct sockaddr_nl la;
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 	la.nl_groups = RTMGRP_IPV4_ROUTE;
 	if(bind(fd, (struct sockaddr*)&la, sizeof(la))) {
 		fprintf(stderr, "Error binding RTNETLINK (_requiestIPv4Routes #1): %s\n", strerror(errno));
@@ -486,7 +490,7 @@ void LinuxNetLink::_requestIPv6Routes()
 
 	struct sockaddr_nl la;
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 	la.nl_groups = RTMGRP_IPV6_ROUTE;
 	if(bind(fd, (struct sockaddr*)&la, sizeof(struct sockaddr_nl))) {
 		fprintf(stderr, "Error binding RTNETLINK (_requestIPv6Routes #1): %s\n", strerror(errno));
@@ -539,7 +543,7 @@ void LinuxNetLink::_requestInterfaceList()
 
 	struct sockaddr_nl la;
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 	la.nl_groups = RTMGRP_LINK;
 	if(bind(fd, (struct sockaddr*)&la, sizeof(struct sockaddr_nl))) {
 		fprintf(stderr, "Error binding RTNETLINK (_requestInterfaceList #1): %s\n", strerror(errno));
@@ -593,7 +597,7 @@ void LinuxNetLink::addRoute(const InetAddress &target, const InetAddress &via, c
 	struct sockaddr_nl la;
 	bzero(&la, sizeof(la));
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 
 	if(bind(fd, (struct sockaddr*)&la, sizeof(struct sockaddr_nl))) {
 		fprintf(stderr, "Error binding RTNETLINK (addRoute #1): %s\n", strerror(errno));
@@ -708,7 +712,7 @@ void LinuxNetLink::delRoute(const InetAddress &target, const InetAddress &via, c
 
 	struct sockaddr_nl la;
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 
 	if(bind(fd, (struct sockaddr*)&la, sizeof(struct sockaddr_nl))) {
 		fprintf(stderr, "Error binding RTNETLINK (delRoute #1): %s\n", strerror(errno));
@@ -822,7 +826,7 @@ void LinuxNetLink::addAddress(const InetAddress &addr, const char *iface)
 	struct sockaddr_nl la;
 	memset(&la,0,sizeof(la));
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 	if (addr.isV4()) {
 		la.nl_groups = RTMGRP_IPV4_IFADDR;
 	} else {
@@ -939,7 +943,7 @@ void LinuxNetLink::removeAddress(const InetAddress &addr, const char *iface)
 
 	struct sockaddr_nl la;
 	la.nl_family = AF_NETLINK;
-	la.nl_pid = getpid();
+	la.nl_pid = 0; //getpid();
 	if (addr.isV4()) {
 		la.nl_groups = RTMGRP_IPV4_IFADDR;
 	} else {
@@ -1066,3 +1070,5 @@ int LinuxNetLink::_indexForInterface(const char *iface)
 }
 
 } // namespace ZeroTier
+
+#endif
diff --git a/osdep/LinuxNetLink.hpp b/osdep/LinuxNetLink.hpp
index 70cd14e71..01bde04b6 100644
--- a/osdep/LinuxNetLink.hpp
+++ b/osdep/LinuxNetLink.hpp
@@ -14,6 +14,10 @@
 #ifndef ZT_LINUX_NETLINK_HPP
 #define ZT_LINUX_NETLINK_HPP
 
+#include "../node/Constants.hpp"
+
+#ifdef __LINUX__
+
 #include <vector>
 
 #include <sys/socket.h>
@@ -113,4 +117,6 @@ private:
 
 }
 
+#endif
+
 #endif // ZT_LINUX_NETLINK_HPPS
\ No newline at end of file