From: "Zhang, Qi Z" <qi.z.zhang@intel.com>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
"Awal, Mohammad Abdul" <mohammad.abdul.awal@intel.com>
Subject: Re: [dpdk-dev] [PATCH 6/9] ipsec: implement SA data-path API
Date: Tue, 20 Nov 2018 01:03:59 +0000 [thread overview]
Message-ID: <039ED4275CED7440929022BC67E70611532E86A8@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1542326031-5263-7-git-send-email-konstantin.ananyev@intel.com>
Hi Konstantin and Awal:
I have couple questions for this patch.
please forgive me if they are obvious, since I don't have much insight on IPsec, but I may work on related stuff in future :)
> +static inline int32_t
> +esp_outb_tun_pkt_prepare(struct rte_ipsec_sa *sa, rte_be64_t sqc,
> + const uint64_t ivp[IPSEC_MAX_IV_QWORD], struct rte_mbuf *mb,
> + union sym_op_data *icv)
> +{
> + uint32_t clen, hlen, pdlen, pdofs, tlen;
> + struct rte_mbuf *ml;
> + struct esp_hdr *esph;
> + struct esp_tail *espt;
> + char *ph, *pt;
> + uint64_t *iv;
> +
> + /* calculate extra header space required */
> + hlen = sa->hdr_len + sa->iv_len + sizeof(*esph);
> +
> + /* number of bytes to encrypt */
> + clen = mb->pkt_len + sizeof(*espt);
> + clen = RTE_ALIGN_CEIL(clen, sa->pad_align);
> +
> + /* pad length + esp tail */
> + pdlen = clen - mb->pkt_len;
> + tlen = pdlen + sa->icv_len;
> +
> + /* do append and prepend */
> + ml = rte_pktmbuf_lastseg(mb);
> + if (tlen + sa->sqh_len + sa->aad_len > rte_pktmbuf_tailroom(ml))
> + return -ENOSPC;
> +
> + /* prepend header */
> + ph = rte_pktmbuf_prepend(mb, hlen);
> + if (ph == NULL)
> + return -ENOSPC;
> +
> + /* append tail */
> + pdofs = ml->data_len;
> + ml->data_len += tlen;
> + mb->pkt_len += tlen;
> + pt = rte_pktmbuf_mtod_offset(ml, typeof(pt), pdofs);
> +
> + /* update pkt l2/l3 len */
> + mb->l2_len = sa->hdr_l3_off;
> + mb->l3_len = sa->hdr_len - sa->hdr_l3_off;
> +
> + /* copy tunnel pkt header */
> + rte_memcpy(ph, sa->hdr, sa->hdr_len);
I didn't get this, my understand is:
for tunnel mode if an original packet is
Eth + IP + UDP/TCP + data,
after encap, it should become
Eth + encap header (IP or IP + UDP) + ESP Header + IP + UDP/TCP + Data + ESP Tailer...
So after rte_pktmbuf_prepend shouldn't we do below
1) shift L2 HEAD (Eth) ahead
2) copy encap header and ESP header to the hole.
?
But now we just copy the sa->hdr on the pre-pend space directly? What is the sa->hdr supposed to be? but no matter what is it, we encap everything before the packet?
BTW, is UDP encapsulation also be considered here?, I didn't figure out how a IP + UDP header should be configured with sa->hdr , sa->hdr_l3_off, sa->hdr_len for this case
> +static inline int
> +esp_inb_tun_single_pkt_process(struct rte_ipsec_sa *sa, struct rte_mbuf
> *mb,
> + uint32_t *sqn)
> +{
> + uint32_t hlen, icv_len, tlen;
> + struct esp_hdr *esph;
> + struct esp_tail *espt;
> + struct rte_mbuf *ml;
> + char *pd;
> +
> + if (mb->ol_flags & PKT_RX_SEC_OFFLOAD_FAILED)
> + return -EBADMSG;
> +
> + icv_len = sa->icv_len;
> +
> + ml = rte_pktmbuf_lastseg(mb);
> + espt = rte_pktmbuf_mtod_offset(ml, struct esp_tail *,
> + ml->data_len - icv_len - sizeof(*espt));
What kind of mechanism is to guarantee that last segment will always cover the esp tail?( data_len >= icv_len + sizeof (*espt))
Is that possible the esp tail be split into multi-segment for jumbo frames caes?
Thanks
Qi
next prev parent reply other threads:[~2018-11-20 1:05 UTC|newest]
Thread overview: 194+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-24 16:53 [dpdk-dev] [RFC] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2018-09-03 12:41 ` Joseph, Anoob
2018-09-03 18:21 ` Ananyev, Konstantin
2018-09-05 14:39 ` Joseph, Anoob
[not found] ` <2601191342CEEE43887BDE71AB977258EA954BAD@irsmsx105.ger.corp.intel.com>
2018-09-12 18:09 ` Ananyev, Konstantin
2018-09-15 17:06 ` Joseph, Anoob
2018-09-16 10:56 ` Jerin Jacob
2018-09-17 18:12 ` Ananyev, Konstantin
2018-09-18 12:42 ` Ananyev, Konstantin
2018-09-20 14:26 ` Akhil Goyal
2018-09-24 10:51 ` Ananyev, Konstantin
2018-09-25 7:48 ` Akhil Goyal
2018-09-30 21:00 ` Ananyev, Konstantin
2018-10-01 12:49 ` Akhil Goyal
2018-10-02 23:24 ` Ananyev, Konstantin
2018-09-18 17:54 ` Jerin Jacob
2018-09-24 8:45 ` Ananyev, Konstantin
2018-09-26 18:02 ` Jerin Jacob
2018-10-02 23:56 ` Ananyev, Konstantin
2018-10-03 9:37 ` Jerin Jacob
2018-10-09 18:24 ` Ananyev, Konstantin
2018-09-17 10:36 ` Ananyev, Konstantin
2018-09-17 14:41 ` Joseph, Anoob
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 0/9] " Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 1/9] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 2/9] security: add opaque userdata pointer into security session Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 3/9] net: add ESP trailer structure definition Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 4/9] lib: introduce ipsec library Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 5/9] ipsec: add SA data-path API Konstantin Ananyev
2018-10-18 17:37 ` Jerin Jacob
2018-10-21 22:01 ` Ananyev, Konstantin
2018-10-24 12:03 ` Jerin Jacob
2018-10-28 20:37 ` Ananyev, Konstantin
2018-10-29 10:19 ` Jerin Jacob
2018-10-30 13:53 ` Ananyev, Konstantin
2018-10-31 6:37 ` Jerin Jacob
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 6/9] ipsec: implement " Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 7/9] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 8/9] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2018-10-09 18:23 ` [dpdk-dev] [RFC v2 9/9] test/ipsec: introduce functional test Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 0/9] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 1/9] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2018-11-16 10:23 ` Mohammad Abdul Awal
2018-11-30 16:45 ` [dpdk-dev] [PATCH v2 0/9] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2018-11-30 16:45 ` [dpdk-dev] [PATCH v2 1/9] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2018-12-04 13:13 ` Mohammad Abdul Awal
2018-12-04 15:32 ` Trahe, Fiona
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 0/9] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 1/9] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2018-12-11 17:24 ` Doherty, Declan
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 01/10] " Konstantin Ananyev
2018-12-19 9:26 ` Akhil Goyal
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 00/10] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 01/10] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 00/10] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2019-01-11 1:09 ` Xu, Yanjie
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 01/10] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2019-01-04 0:25 ` Stephen Hemminger
2019-01-04 9:29 ` Ananyev, Konstantin
2019-01-09 23:41 ` Thomas Monjalon
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 00/10] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2019-01-10 14:25 ` Thomas Monjalon
2019-01-10 14:40 ` De Lara Guarch, Pablo
2019-01-10 14:52 ` Ananyev, Konstantin
2019-01-10 14:54 ` Thomas Monjalon
2019-01-10 14:58 ` Ananyev, Konstantin
2019-01-10 15:00 ` Akhil Goyal
2019-01-10 15:09 ` Akhil Goyal
2019-01-10 14:51 ` Akhil Goyal
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 01/10] cryptodev: add opaque userdata pointer into crypto sym session Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 0/9] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2019-01-10 23:59 ` De Lara Guarch, Pablo
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 1/9] security: add opaque userdata pointer into security session Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 2/9] net: add ESP trailer structure definition Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 3/9] lib: introduce ipsec library Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 4/9] ipsec: add SA data-path API Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 5/9] ipsec: implement " Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 6/9] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 7/9] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 8/9] test/ipsec: introduce functional test Konstantin Ananyev
2019-01-10 21:06 ` [dpdk-dev] [PATCH v8 9/9] doc: add IPsec library guide Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 02/10] security: add opaque userdata pointer into security session Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 03/10] net: add ESP trailer structure definition Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 04/10] lib: introduce ipsec library Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 05/10] ipsec: add SA data-path API Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 06/10] ipsec: implement " Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 07/10] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 08/10] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 09/10] test/ipsec: introduce functional test Konstantin Ananyev
2019-01-10 14:20 ` [dpdk-dev] [PATCH v7 10/10] doc: add IPsec library guide Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 02/10] security: add opaque userdata pointer into security session Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 03/10] net: add ESP trailer structure definition Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 04/10] lib: introduce ipsec library Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 05/10] ipsec: add SA data-path API Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 06/10] ipsec: implement " Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 07/10] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 08/10] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 09/10] test/ipsec: introduce functional test Konstantin Ananyev
2019-01-03 20:16 ` [dpdk-dev] [PATCH v6 10/10] doc: add IPsec library guide Konstantin Ananyev
2019-01-10 8:35 ` Thomas Monjalon
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 02/10] security: add opaque userdata pointer into security session Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 03/10] net: add ESP trailer structure definition Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 04/10] lib: introduce ipsec library Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 05/10] ipsec: add SA data-path API Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 06/10] ipsec: implement " Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 07/10] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 08/10] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 09/10] test/ipsec: introduce functional test Konstantin Ananyev
2018-12-28 15:17 ` [dpdk-dev] [PATCH v5 10/10] doc: add IPsec library guide Konstantin Ananyev
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 02/10] security: add opaque userdata pointer into security session Konstantin Ananyev
2018-12-19 9:26 ` Akhil Goyal
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 03/10] net: add ESP trailer structure definition Konstantin Ananyev
2018-12-19 9:32 ` Akhil Goyal
2018-12-27 10:13 ` Olivier Matz
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 04/10] lib: introduce ipsec library Konstantin Ananyev
2018-12-19 12:08 ` Akhil Goyal
2018-12-19 12:39 ` Thomas Monjalon
2018-12-20 14:06 ` Ananyev, Konstantin
2018-12-20 14:14 ` Thomas Monjalon
2018-12-20 14:26 ` Ananyev, Konstantin
2018-12-20 18:17 ` Ananyev, Konstantin
2018-12-21 11:57 ` Akhil Goyal
2018-12-21 11:53 ` Akhil Goyal
2018-12-21 12:41 ` Ananyev, Konstantin
2018-12-21 12:54 ` Ananyev, Konstantin
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 05/10] ipsec: add SA data-path API Konstantin Ananyev
2018-12-19 13:04 ` Akhil Goyal
2018-12-20 10:17 ` Ananyev, Konstantin
2018-12-21 12:14 ` Akhil Goyal
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 06/10] ipsec: implement " Konstantin Ananyev
2018-12-19 15:32 ` Akhil Goyal
2018-12-20 12:56 ` Ananyev, Konstantin
2018-12-21 12:36 ` Akhil Goyal
2018-12-21 14:27 ` Ananyev, Konstantin
2018-12-21 14:39 ` Thomas Monjalon
2018-12-21 14:51 ` Akhil Goyal
2018-12-21 15:16 ` Ananyev, Konstantin
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 07/10] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 08/10] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2018-12-19 15:46 ` Akhil Goyal
2018-12-20 13:00 ` Ananyev, Konstantin
2018-12-21 12:37 ` Akhil Goyal
2018-12-14 16:23 ` [dpdk-dev] [PATCH v4 09/10] test/ipsec: introduce functional test Konstantin Ananyev
2018-12-19 15:53 ` Akhil Goyal
2018-12-20 13:03 ` Ananyev, Konstantin
2018-12-21 12:41 ` Akhil Goyal
2018-12-14 16:27 ` [dpdk-dev] [PATCH v4 10/10] doc: add IPsec library guide Konstantin Ananyev
2018-12-19 3:46 ` Thomas Monjalon
2018-12-19 16:01 ` Akhil Goyal
2018-12-20 13:06 ` Ananyev, Konstantin
2018-12-21 12:58 ` Akhil Goyal
2018-12-14 16:29 ` [dpdk-dev] [PATCH v4 00/10] ipsec: new library for IPsec data-path processing Konstantin Ananyev
2018-12-21 13:32 ` Akhil Goyal
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 2/9] security: add opaque userdata pointer into security session Konstantin Ananyev
2018-12-11 17:25 ` Doherty, Declan
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 3/9] net: add ESP trailer structure definition Konstantin Ananyev
2018-12-11 17:25 ` Doherty, Declan
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 4/9] lib: introduce ipsec library Konstantin Ananyev
2018-12-11 17:25 ` Doherty, Declan
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 5/9] ipsec: add SA data-path API Konstantin Ananyev
2018-12-11 17:25 ` Doherty, Declan
2018-12-12 7:37 ` Ananyev, Konstantin
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 6/9] ipsec: implement " Konstantin Ananyev
2018-12-12 17:47 ` Doherty, Declan
2018-12-13 11:21 ` Ananyev, Konstantin
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 7/9] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2018-12-13 12:14 ` Doherty, Declan
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 8/9] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2018-12-13 12:14 ` Doherty, Declan
2018-12-06 15:38 ` [dpdk-dev] [PATCH v3 9/9] test/ipsec: introduce functional test Konstantin Ananyev
2018-12-13 12:54 ` Doherty, Declan
2018-11-30 16:45 ` [dpdk-dev] [PATCH v2 2/9] security: add opaque userdata pointer into security session Konstantin Ananyev
2018-12-04 13:13 ` Mohammad Abdul Awal
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 3/9] net: add ESP trailer structure definition Konstantin Ananyev
2018-12-04 13:12 ` Mohammad Abdul Awal
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 4/9] lib: introduce ipsec library Konstantin Ananyev
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 5/9] ipsec: add SA data-path API Konstantin Ananyev
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 6/9] ipsec: implement " Konstantin Ananyev
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 7/9] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 8/9] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2018-11-30 16:46 ` [dpdk-dev] [PATCH v2 9/9] test/ipsec: introduce functional test Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 2/9] security: add opaque userdata pointer into security session Konstantin Ananyev
2018-11-16 10:24 ` Mohammad Abdul Awal
2018-11-15 23:53 ` [dpdk-dev] [PATCH 3/9] net: add ESP trailer structure definition Konstantin Ananyev
2018-11-16 10:22 ` Mohammad Abdul Awal
2018-11-15 23:53 ` [dpdk-dev] [PATCH 4/9] lib: introduce ipsec library Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 5/9] ipsec: add SA data-path API Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 6/9] ipsec: implement " Konstantin Ananyev
2018-11-20 1:03 ` Zhang, Qi Z [this message]
2018-11-20 9:44 ` Ananyev, Konstantin
2018-11-20 10:02 ` Ananyev, Konstantin
2018-11-15 23:53 ` [dpdk-dev] [PATCH 7/9] ipsec: rework SA replay window/SQN for MT environment Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 8/9] ipsec: helper functions to group completed crypto-ops Konstantin Ananyev
2018-11-15 23:53 ` [dpdk-dev] [PATCH 9/9] test/ipsec: introduce functional test Konstantin Ananyev
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