netdev - Re: [PATCHv3 net-next 6/7] {pktgen, xfrm} Introduce xfrm_state_lookup

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Date:	Mon, 16 Dec 2013 19:38:25 +0800
From:	Fan Du <fan.du@...driver.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
CC:	<davem@...emloft.net>, <steffen.klassert@...unet.com>,
	<hadi@...erus.ca>, <netdev@...r.kernel.org>
Subject: Re: [PATCHv3 net-next 6/7] {pktgen, xfrm} Introduce xfrm_state_lookup_byspi
 for pktgen



On 2013年12月16日 04:42, Sergei Shtylyov wrote:
> Hello.
>
> On 12/15/2013 10:58 AM, Fan Du wrote:
>
>> Introduce xfrm_state_lookup_byspi to find user specified by custom
>> from "pgset spi xxx". Using this scheme, any flow regardless its
>> saddr/daddr could be transform by SA specified with configurable
>> spi.
>
>> Signed-off-by: Fan Du <fan.du@...driver.com>
> [...]
>
>> diff --git a/net/core/pktgen.c b/net/core/pktgen.c
>> index eb70c23..ae268ff 100644
>> --- a/net/core/pktgen.c
>> +++ b/net/core/pktgen.c
>> @@ -2247,13 +2247,21 @@ static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow)
>> struct xfrm_state *x = pkt_dev->flows[flow].x;
>> struct pktgen_net *pn = net_generic(dev_net(pkt_dev->odev), pg_net_id);
>> if (!x) {
>> - /*slow path: we dont already have xfrm_state*/
>> - x = xfrm_stateonly_find(pn->net, DUMMY_MARK,
>> - (xfrm_address_t *)&pkt_dev->cur_daddr,
>> - (xfrm_address_t *)&pkt_dev->cur_saddr,
>> - AF_INET,
>> - pkt_dev->ipsmode,
>> - pkt_dev->ipsproto, 0);
>> +
>> + if (pkt_dev->spi) {
>> + /* We need as quick as possible to find the right SA
>> + * Searching with minimum criteria to archieve this.
>> + */
>> + x = xfrm_state_lookup_byspi(pn->net, htonl(pkt_dev->spi), AF_INET);
>> + } else {
>> + /*slow path: we dont already have xfrm_state*/
>
> Could you insert spaces after /* and before */, while at it?

Sure, I will incorporate this in v4.

Thanks for your attention.

-- 
浮沉随浪只记今朝笑

--fan
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