Re: [PATCH nf-next] netfilter: nf_tables: check the bind callback failed and unbind callback if hook register failed

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



在 2019/11/15 19:25, Pablo Neira Ayuso 写道:
>
>>  net/netfilter/nf_tables_api.c | 14 +++++++++++---
>>  1 file changed, 11 insertions(+), 3 deletions(-)
>>
>> diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
>> index 0f8080e..149de13 100644
>> --- a/net/netfilter/nf_tables_api.c
>> +++ b/net/netfilter/nf_tables_api.c
>> @@ -6001,12 +6001,20 @@ static int nft_register_flowtable_net_hooks(struct net *net,
>>  			}
>>  		}
>>  
>> -		flowtable->data.type->setup(&flowtable->data, hook->ops.dev,
>> -					    FLOW_BLOCK_BIND);
>> -		err = nf_register_net_hook(net, &hook->ops);
>> +		err = flowtable->data.type->setup(&flowtable->data,
>> +						  hook->ops.dev,
>> +						  FLOW_BLOCK_BIND);
> I'd rather not check for the return value. ->setup returns 0 unless
> you use anything else than FLOW_BLOCK_BIND or _UNBIND. Probably better
> turn nf_flow_table_block_setup void and add WARN_ON_ONCE() there.

If BIND failed. It means hw-offload failed. But the flowtable is set as hw-offload.

Maybe it is not too make sense?





[Index of Archives]     [Netfitler Users]     [Berkeley Packet Filter]     [LARTC]     [Bugtraq]     [Yosemite Forum]

  Powered by Linux