diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-02-13 13:05:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-13 13:05:57 +0100 |
| commit | d040c1614c24162adc3fe106b182596999264e26 (patch) | |
| tree | 5af02052e633bcde0e33f77cac52ab4685ad07f1 /drivers/net/tun.c | |
| parent | d88316c243e5458a1888edbe0353c4dec6e61c73 (diff) | |
| parent | 7032e8696726354d6180d8a2d17191f958cd93ae (diff) | |
Merge branch 'x86/core' into x86/headers
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index d7b81e4fdd5..09fea31d3e3 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -157,10 +157,16 @@ static int update_filter(struct tap_filter *filter, void __user *arg) nexact = n; - /* The rest is hashed */ + /* Remaining multicast addresses are hashed, + * unicast will leave the filter disabled. */ memset(filter->mask, 0, sizeof(filter->mask)); - for (; n < uf.count; n++) + for (; n < uf.count; n++) { + if (!is_multicast_ether_addr(addr[n].u)) { + err = 0; /* no filter */ + goto done; + } addr_hash_set(filter->mask, addr[n].u); + } /* For ALLMULTI just set the mask to all ones. * This overrides the mask populated above. */ |