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-rw-r--r--node/UnixEthernetTap.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/node/UnixEthernetTap.cpp b/node/UnixEthernetTap.cpp
index 50f1dcc5..240efe41 100644
--- a/node/UnixEthernetTap.cpp
+++ b/node/UnixEthernetTap.cpp
@@ -308,6 +308,9 @@ UnixEthernetTap::UnixEthernetTap(
::close(sock);
+ // Set close-on-exec so that devices cannot persist if we fork/exec for update
+ fcntl(_fd,F_SETFD,fcntl(_fd,F_GETFD) | FD_CLOEXEC);
+
::pipe(_shutdownSignalPipe);
TRACE("tap %s created",_dev.c_str());
@@ -418,6 +421,9 @@ UnixEthernetTap::UnixEthernetTap(
_setIpv6Stuff(_dev.c_str(),true,false);
+ // Set close-on-exec so that devices cannot persist if we fork/exec for update
+ fcntl(_fd,F_SETFD,fcntl(_fd,F_GETFD) | FD_CLOEXEC);
+
::pipe(_shutdownSignalPipe);
_thread = Thread::start(this);