Date: Sun, 03 Mar 2024 14:50:11 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 277435] [Feature request] Add an option to destroy the tap/tun interface when the descriptor is closed Message-ID: <bug-277435-7501-MgXNwxRPTb@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-277435-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-277435-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277435 --- Comment #4 from Nikolay Borodin <monsterovich@gmail.com> --- (In reply to Kyle Evans from comment #3) > though you can destroy it, you just have to close it first You can't. If you try to do this via SIOCIFDESTROY inside an application wh= ich uses the descriptor, the application will hang, even if you do ioctl after close(fd) The sample code from my application: JFUNC(void, close) { close(getFd(env, this)); struct ifreq ifr; memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, "tap0"); int sock =3D socket(PF_INET, SOCK_STREAM, 0); ioctl(sock, SIOCIFDESTROY, &ifr); // hangs } After that, you can only terminate the application via kill -9 <pid>. --=20 You are receiving this mail because: You are the assignee for the bug.=
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