From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: Lukasz Bartosik <lbartosik@marvell.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "anoobj@marvell.com" <anoobj@marvell.com>
Subject: Re: [dpdk-dev] [PATCH v2] ipsec: include high order bytes of esn in pkt len
Date: Thu, 30 May 2019 16:51:21 +0000 [thread overview]
Message-ID: <2601191342CEEE43887BDE71AB977258016163A722@irsmsx105.ger.corp.intel.com> (raw)
In-Reply-To: <1558613471-24414-1-git-send-email-lbartosik@marvell.com>
Hi Lukasz,
> diff --git a/lib/librte_ipsec/esp_outb.c b/lib/librte_ipsec/esp_outb.c
> index c798bc4..ed5974b 100644
> --- a/lib/librte_ipsec/esp_outb.c
> +++ b/lib/librte_ipsec/esp_outb.c
> @@ -126,11 +126,11 @@ outb_tun_pkt_prepare(struct rte_ipsec_sa *sa, rte_be64_t sqc,
>
> /* pad length + esp tail */
> pdlen = clen - plen;
> - tlen = pdlen + sa->icv_len;
> + tlen = pdlen + sa->icv_len + sa->sqh_len;
We probably don't want to increase pkt_len by sa->sqh_len for inline case.
That's why I suggested to pass sqh_len as parameter to that function.
Then for inline we can just pass 0.
Do you see any obstacles with that approach?
Same thought for transport mode.
Konstantin
>
> /* do append and prepend */
> ml = rte_pktmbuf_lastseg(mb);
> - if (tlen + sa->sqh_len + sa->aad_len > rte_pktmbuf_tailroom(ml))
> + if (tlen + sa->aad_len > rte_pktmbuf_tailroom(ml))
> return -ENOSPC;
>
> /* prepend header */
> @@ -152,8 +152,8 @@ outb_tun_pkt_prepare(struct rte_ipsec_sa *sa, rte_be64_t sqc,
> rte_memcpy(ph, sa->hdr, sa->hdr_len);
>
> /* update original and new ip header fields */
> - update_tun_l3hdr(sa, ph + sa->hdr_l3_off, mb->pkt_len, sa->hdr_l3_off,
> - sqn_low16(sqc));
> + update_tun_l3hdr(sa, ph + sa->hdr_l3_off, mb->pkt_len - sa->sqh_len,
> + sa->hdr_l3_off, sqn_low16(sqc));
>
> /* update spi, seqn and iv */
> esph = (struct esp_hdr *)(ph + sa->hdr_len);
> @@ -292,11 +292,11 @@ outb_trs_pkt_prepare(struct rte_ipsec_sa *sa, rte_be64_t sqc,
>
> /* pad length + esp tail */
> pdlen = clen - plen;
> - tlen = pdlen + sa->icv_len;
> + tlen = pdlen + sa->icv_len + sa->sqh_len;
>
> /* do append and insert */
> ml = rte_pktmbuf_lastseg(mb);
> - if (tlen + sa->sqh_len + sa->aad_len > rte_pktmbuf_tailroom(ml))
> + if (tlen + sa->aad_len > rte_pktmbuf_tailroom(ml))
> return -ENOSPC;
>
> /* prepend space for ESP header */
> @@ -314,8 +314,8 @@ outb_trs_pkt_prepare(struct rte_ipsec_sa *sa, rte_be64_t sqc,
> insert_esph(ph, ph + hlen, uhlen);
>
> /* update ip header fields */
> - np = update_trs_l3hdr(sa, ph + l2len, mb->pkt_len, l2len, l3len,
> - IPPROTO_ESP);
> + np = update_trs_l3hdr(sa, ph + l2len, mb->pkt_len - sa->sqh_len, l2len,
> + l3len, IPPROTO_ESP);
>
> /* update spi, seqn and iv */
> esph = (struct esp_hdr *)(ph + uhlen);
> @@ -425,6 +425,9 @@ esp_outb_sqh_process(const struct rte_ipsec_session *ss, struct rte_mbuf *mb[],
> for (i = 0; i != num; i++) {
> if ((mb[i]->ol_flags & PKT_RX_SEC_OFFLOAD_FAILED) == 0) {
> ml = rte_pktmbuf_lastseg(mb[i]);
> + /* remove high-order 32 bits of esn from packet len */
> + mb[i]->pkt_len -= sa->sqh_len;
> + ml->data_len -= sa->sqh_len;
> icv = rte_pktmbuf_mtod_offset(ml, void *,
> ml->data_len - icv_len);
> remove_sqh(icv, icv_len);
next prev parent reply other threads:[~2019-05-30 16:51 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-30 14:55 [dpdk-dev] [PATCH] " Lukasz Bartosik
2019-04-30 14:55 ` Lukasz Bartosik
2019-04-30 15:05 ` Ananyev, Konstantin
2019-04-30 15:05 ` Ananyev, Konstantin
2019-04-30 15:38 ` Lukas Bartosik
2019-04-30 15:38 ` Lukas Bartosik
2019-05-07 14:48 ` [dpdk-dev] [EXT] " Lukas Bartosik
2019-05-07 14:48 ` Lukas Bartosik
2019-05-09 11:59 ` Ananyev, Konstantin
2019-05-09 11:59 ` Ananyev, Konstantin
2019-05-14 13:52 ` Ananyev, Konstantin
2019-05-14 13:52 ` Ananyev, Konstantin
2019-05-14 14:31 ` Lukas Bartosik
2019-05-14 14:31 ` Lukas Bartosik
2019-05-19 14:47 ` [dpdk-dev] " Ananyev, Konstantin
2019-05-20 11:13 ` Lukas Bartosik
2019-05-23 12:11 ` [dpdk-dev] [PATCH v2] " Lukasz Bartosik
2019-05-30 16:51 ` Ananyev, Konstantin [this message]
2019-05-31 16:09 ` Lukas Bartosik
2019-06-05 15:31 ` [dpdk-dev] [PATCH v3] " Lukasz Bartosik
2019-06-06 14:45 ` Ananyev, Konstantin
2019-06-20 13:25 ` Akhil Goyal
2019-06-25 12:49 ` Akhil Goyal
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