diff options
Diffstat (limited to 'qemu-bridge-helper.c')
-rw-r--r-- | qemu-bridge-helper.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/qemu-bridge-helper.c b/qemu-bridge-helper.c index 287bfd5..6a0974e 100644 --- a/qemu-bridge-helper.c +++ b/qemu-bridge-helper.c @@ -367,6 +367,24 @@ int main(int argc, char **argv) goto cleanup; } + /* Linux uses the lowest enslaved MAC address as the MAC address of + * the bridge. Set MAC address to a high value so that it doesn't + * affect the MAC address of the bridge. + */ + if (ioctl(ctlfd, SIOCGIFHWADDR, &ifr) < 0) { + fprintf(stderr, "failed to get MAC address of device `%s': %s\n", + iface, strerror(errno)); + ret = EXIT_FAILURE; + goto cleanup; + } + ifr.ifr_hwaddr.sa_data[0] = 0xFE; + if (ioctl(ctlfd, SIOCSIFHWADDR, &ifr) < 0) { + fprintf(stderr, "failed to set MAC address of device `%s': %s\n", + iface, strerror(errno)); + ret = EXIT_FAILURE; + goto cleanup; + } + /* add the interface to the bridge */ prep_ifreq(&ifr, bridge); ifindex = if_nametoindex(iface); |