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Revert "Reorder Linux TAP link sequence"

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This reverts commit 9374e45449ffe5c377e4cb2a346129ec598eeea9.
This commit is contained in:
Jonathon Fernyhough 2021-04-21 20:45:17 +01:00
parent cdcd6c4886
commit b8b1f64959
1 changed files with 6 additions and 7 deletions
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13
osdep/LinuxEthernetTap.cpp
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@ -207,6 +207,12 @@ LinuxEthernetTap::LinuxEthernetTap(
printf("WARNING: ioctl() failed setting up Linux tap device (bring interface up)\n"); printf("WARNING: ioctl() failed setting up Linux tap device (bring interface up)\n");
return; return;
} }
ifr.ifr_flags |= IFF_UP;
if (ioctl(sock,SIOCSIFFLAGS,(void *)&ifr) < 0) {
::close(sock);
printf("WARNING: ioctl() failed setting up Linux tap device (bring interface up)\n");
return;
}
// Some kernel versions seem to require you to yield while the device comes up // Some kernel versions seem to require you to yield while the device comes up
// before they will accept MTU and MAC. For others it doesn't matter, but is // before they will accept MTU and MAC. For others it doesn't matter, but is
@ -229,13 +235,6 @@ LinuxEthernetTap::LinuxEthernetTap(
return; return;
} }
ifr.ifr_flags |= IFF_UP;
if (ioctl(sock,SIOCSIFFLAGS,(void *)&ifr) < 0) {
::close(sock);
printf("WARNING: ioctl() failed setting up Linux tap device (bring interface up)\n");
return;
}
fcntl(_fd,F_SETFL,O_NONBLOCK); fcntl(_fd,F_SETFL,O_NONBLOCK);
::close(sock); ::close(sock);