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From: Aviad Yehezkel <aviadye@dev.mellanox.co.il>
To: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>,
	dev@dpdk.org, pablo.de.lara.guarch@intel.com,
	aviadye@mellanox.com
Cc: borisp@mellanox.com, akhil.goyal@nxp.com, hemant.agrawal@nxp.com,
	radu.nicolau@intel.com, declan.doherty@intel.com,
	liranl@mellanox.com, nelio.laranjeiro@6wind.com,
	thomas@monjalon.net
Subject: Re: [dpdk-dev] [PATCH 09/11] examples/ipsec-secgw: Fixed ip length in case of transport
Date: Mon, 16 Oct 2017 14:44:36 +0300	[thread overview]
Message-ID: <e860b1d4-6d92-b121-4f39-5e472b0195d6@dev.mellanox.co.il> (raw)
In-Reply-To: <221e06d8-c318-90a0-bd39-00f2c9666132@intel.com>

On 10/16/2017 12:43 PM, Sergio Gonzalez Monroy wrote:
> On 14/10/2017 14:28, aviadye@dev.mellanox.co.il wrote:
>> From: Aviad Yehezkel <aviadye@mellanox.com>
>>
>> IP length was incorrect causing corrupted ICMP packets for example
>>
>> Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
>> ---
>>   examples/ipsec-secgw/esp.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
>> index 81ebf55..12c6f8c 100644
>> --- a/examples/ipsec-secgw/esp.c
>> +++ b/examples/ipsec-secgw/esp.c
>> @@ -205,13 +205,13 @@ esp_inbound_post(struct rte_mbuf *m, struct 
>> ipsec_sa *sa,
>>           if (likely(ip->ip_v == IPVERSION)) {
>>               memmove(ip4, ip, ip->ip_hl * 4);
>>               ip4->ip_p = *nexthdr;
>> -            ip4->ip_len = htons(rte_pktmbuf_data_len(m));
>> +            ip4->ip_len = htons(rte_pktmbuf_pkt_len(m));
>>           } else {
>>               ip6 = (struct ip6_hdr *)ip4;
>>               /* XXX No option headers supported */
>>               memmove(ip6, ip, sizeof(struct ip6_hdr));
>>               ip6->ip6_nxt = *nexthdr;
>> -            ip6->ip6_plen = htons(rte_pktmbuf_data_len(m));
>> +            ip6->ip6_plen = htons(rte_pktmbuf_pkt_len(m));
>>           }
>>       } else
>>           ipip_inbound(m, sizeof(struct esp_hdr) + sa->iv_len);
>
> AFAIK the app does not support multi-segments (chain mbufs), so 
> data_len should be the same as pkt_len.
> Is that not the case?
>
This is the inbound function (RX side), so mbufs are allocated by PMD.
PMD is allocating mbuf with additional 14 bytes for ETH header but trim 
it before passing the mbuf.
As a result seg len is 14 bytes smaller than data len.

Thanks,
Aviad

> Thanks,
> Sergio

  reply	other threads:[~2017-10-16 11:44 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-14 13:27 [dpdk-dev] [PATCH 01/11] examples/ipsec-secgw: updated MAINTAINERS file aviadye
2017-10-14 13:27 ` [dpdk-dev] [PATCH 02/11] examples/ipsec-secgw: Fixed init of aead crypto devices aviadye
2017-10-15 12:54   ` Aviad Yehezkel
2017-10-16 15:23     ` De Lara Guarch, Pablo
2017-10-14 13:27 ` [dpdk-dev] [PATCH 03/11] examples/ipsec-secgw: Fixed create session also for aead aviadye
2017-10-15 12:54   ` Aviad Yehezkel
2017-10-16 15:33   ` De Lara Guarch, Pablo
2017-10-14 13:27 ` [dpdk-dev] [PATCH 04/11] examples/ipsec-secgw: Fix aad_len for for aes-gcm support aviadye
2017-10-15 12:54   ` Aviad Yehezkel
2017-10-14 13:27 ` [dpdk-dev] [PATCH 05/11] examples/ipsec-secgw: Fixed transport aviadye
2017-10-15 12:55   ` Aviad Yehezkel
2017-10-16  9:30   ` Sergio Gonzalez Monroy
2017-10-16 10:42     ` Aviad Yehezkel
2017-10-19 18:16       ` De Lara Guarch, Pablo
2017-10-19 18:29         ` Aviad Yehezkel
2017-10-14 13:27 ` [dpdk-dev] [PATCH 06/11] examples/ipsec-secgw: Added correct padding to tunnel mode aviadye
2017-10-15 12:55   ` Aviad Yehezkel
2017-10-16  9:36   ` Sergio Gonzalez Monroy
2017-10-14 13:27 ` [dpdk-dev] [PATCH 07/11] examples/ipsec-secgw: Fixed phyiscal address of aad aviadye
2017-10-15 12:55   ` Aviad Yehezkel
2017-10-16  9:39   ` Sergio Gonzalez Monroy
2017-10-14 13:28 ` [dpdk-dev] [PATCH 08/11] examples/ipsec-secgw: iv should be be64 aviadye
2017-10-15 12:55   ` Aviad Yehezkel
2017-10-16  9:42   ` Sergio Gonzalez Monroy
2017-10-16 10:35     ` Aviad Yehezkel
2017-10-16 11:59       ` Sergio Gonzalez Monroy
2017-10-14 13:28 ` [dpdk-dev] [PATCH 09/11] examples/ipsec-secgw: Fixed ip length in case of transport aviadye
2017-10-15 12:56   ` Aviad Yehezkel
2017-10-16  9:43   ` Sergio Gonzalez Monroy
2017-10-16 11:44     ` Aviad Yehezkel [this message]
2017-10-16 12:03       ` Sergio Gonzalez Monroy
2017-10-19 18:44         ` Aviad Yehezkel
2017-10-14 13:28 ` [dpdk-dev] [PATCH 10/11] app/testpmd: compile even if ixgbe anf bnxt pmds are not compiling aviadye
2017-10-15 12:56   ` Aviad Yehezkel
2017-10-16  9:44   ` Sergio Gonzalez Monroy
2017-10-16 10:38     ` Aviad Yehezkel
2017-10-14 13:28 ` [dpdk-dev] [PATCH 11/11] examples/ipsec-secgw: Ethernet MAC configuration is now dynamic throw conf file aviadye
2017-10-15 12:56   ` Aviad Yehezkel
2017-10-15 12:53 ` [dpdk-dev] [PATCH 01/11] examples/ipsec-secgw: updated MAINTAINERS file Aviad Yehezkel
2017-10-16  7:33   ` De Lara Guarch, Pablo
2017-10-16  9:27 ` Sergio Gonzalez Monroy
2017-10-16 10:43   ` Aviad Yehezkel
2017-10-16 13:39     ` De Lara Guarch, Pablo
2017-10-17 12:36       ` Hemant Agrawal
2017-10-17 13:17         ` De Lara Guarch, Pablo
2017-10-21 17:12           ` Akhil Goyal
2017-10-23  8:32             ` Sergio Gonzalez Monroy
2017-10-19 18:52 ` [dpdk-dev] [PATCH v2 1/6] examples/ipsec-secgw: fix initialization of aead crypto devices aviadye
2017-10-19 18:53   ` [dpdk-dev] [PATCH v2 2/6] examples/ipsec-secgw: fix create session also for aead aviadye
2017-10-19 18:53   ` [dpdk-dev] [PATCH v2 3/6] examples/ipsec-secgw: fix aad_len for for aes-gcm aviadye
2017-10-20  9:52     ` De Lara Guarch, Pablo
2017-10-20 10:52       ` Thomas Monjalon
2017-10-19 18:53   ` [dpdk-dev] [PATCH v2 4/6] examples/ipsec-secgw: add correct padding to tunnel mode aviadye
2017-10-20  5:55     ` Sergio Gonzalez Monroy
2017-10-23 10:54       ` De Lara Guarch, Pablo
2017-10-23 11:40         ` Aviad Yehezkel
2017-10-19 18:53   ` [dpdk-dev] [PATCH v2 5/6] examples/ipsec-secgw: iv should be be64 aviadye
2017-10-20 15:28     ` Radu Nicolau
2017-10-19 18:53   ` [dpdk-dev] [PATCH v2 6/6] examples/ipsec-secgw: config ethernet MACs dynamically aviadye
2017-10-20 16:34     ` Nicolau, Radu
2019-03-28 19:11       ` Ferruh Yigit
2019-03-28 19:11         ` Ferruh Yigit
2017-10-20  9:50   ` [dpdk-dev] [PATCH v2 1/6] examples/ipsec-secgw: fix initialization of aead crypto devices De Lara Guarch, Pablo
2017-10-22  7:21     ` Aviad Yehezkel
2017-10-22 11:00       ` Thomas Monjalon
2017-10-24 12:48 ` [dpdk-dev] [PATCH v3 1/4] " aviadye
2017-10-24 12:48   ` [dpdk-dev] [PATCH v3 2/4] examples/ipsec-secgw: fix create session also for aead aviadye
2017-10-24 12:48   ` [dpdk-dev] [PATCH v3 3/4] examples/ipsec-secgw: fix AAD length for aes-gcm aviadye
2017-10-24 12:49   ` [dpdk-dev] [PATCH v3 4/4] examples/ipsec-secgw: iv should be be64 aviadye
2017-10-24 14:06   ` [dpdk-dev] [PATCH v3 1/4] examples/ipsec-secgw: fix initialization of aead crypto devices Radu Nicolau
2017-10-24 14:20     ` De Lara Guarch, Pablo

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