Do not shadow our own route twice on Mac if there is no default route. (Fix for issue found during IPv6 default route override testing.)
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2 changed files with 5 additions and 3 deletions
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@ -57,6 +57,8 @@
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#define ZT_LINUX_IP_COMMAND "/sbin/ip"
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#define ZT_LINUX_IP_COMMAND_2 "/usr/sbin/ip"
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// NOTE: BSD is mostly tested on Apple/Mac but is likely to work on other BSD too
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namespace ZeroTier {
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namespace {
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@ -413,7 +415,7 @@ bool ManagedRoute::sync()
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// Shadow system route if it exists, also delete any obsolete shadows
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// and replace them with the new state. sync() is called periodically to
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// allow us to do that if underlying connectivity changes.
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if ((_systemVia != newSystemVia)||(!strcmp(_systemDevice,newSystemDevice))) {
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if ( ((_systemVia != newSystemVia)||(!strcmp(_systemDevice,newSystemDevice))) && (strcmp(_device,newSystemDevice)) ) {
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if ((_systemVia)&&(_systemDevice[0])) {
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_routeCmd("delete",leftt,_systemVia,_systemDevice,(const char *)0);
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_routeCmd("delete",rightt,_systemVia,_systemDevice,(const char *)0);
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