From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id E777CA0C4E; Thu, 12 Aug 2021 16:11:04 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 284EC4123A; Thu, 12 Aug 2021 16:10:34 +0200 (CEST) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by mails.dpdk.org (Postfix) with ESMTP id D480340042 for ; Thu, 12 Aug 2021 16:10:31 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10074"; a="300944442" X-IronPort-AV: E=Sophos;i="5.84,316,1620716400"; d="scan'208";a="300944442" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2021 07:10:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,316,1620716400"; d="scan'208";a="446554442" Received: from silpixa00400884.ir.intel.com ([10.243.22.82]) by fmsmga007.fm.intel.com with ESMTP; 12 Aug 2021 07:10:24 -0700 From: Radu Nicolau To: Cc: dev@dpdk.org, mdr@ashroe.eu, konstantin.ananyev@intel.com, vladimir.medvedkin@intel.com, bruce.richardson@intel.com, hemant.agrawal@nxp.com, gakhil@marvell.com, anoobj@marvell.com, declan.doherty@intel.com, abhijit.sinha@intel.com, daniel.m.buckley@intel.com, marchana@marvell.com, ktejasree@marvell.com, matan@nvidia.com, Radu Nicolau , Abhijit Sinha Date: Thu, 12 Aug 2021 14:54:22 +0100 Message-Id: <20210812135425.698189-8-radu.nicolau@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210812135425.698189-1-radu.nicolau@intel.com> References: <20210713133542.3550525-1-radu.nicolau@intel.com> <20210812135425.698189-1-radu.nicolau@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v2 07/10] ipsec: add support for NAT-T X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add support for the IPsec NAT-Traversal use case for Tunnel mode packets. Signed-off-by: Declan Doherty Signed-off-by: Radu Nicolau Signed-off-by: Abhijit Sinha Signed-off-by: Daniel Martin Buckley --- lib/ipsec/iph.h | 13 +++++++++++++ lib/ipsec/rte_ipsec_sa.h | 8 +++++++- lib/ipsec/sa.c | 13 ++++++++++++- lib/ipsec/sa.h | 4 ++++ 4 files changed, 36 insertions(+), 2 deletions(-) diff --git a/lib/ipsec/iph.h b/lib/ipsec/iph.h index 2d223199ac..093f86d34a 100644 --- a/lib/ipsec/iph.h +++ b/lib/ipsec/iph.h @@ -251,6 +251,7 @@ update_tun_outb_l3hdr(const struct rte_ipsec_sa *sa, void *outh, { struct rte_ipv4_hdr *v4h; struct rte_ipv6_hdr *v6h; + struct rte_udp_hdr *udph; uint8_t is_outh_ipv4; if (sa->type & RTE_IPSEC_SATP_MODE_TUNLV4) { @@ -258,11 +259,23 @@ update_tun_outb_l3hdr(const struct rte_ipsec_sa *sa, void *outh, v4h = outh; v4h->packet_id = pid; v4h->total_length = rte_cpu_to_be_16(plen - l2len); + + if (sa->type & RTE_IPSEC_SATP_NATT_ENABLE) { + udph = (struct rte_udp_hdr *)(v4h + 1); + udph->dgram_len = rte_cpu_to_be_16(plen - l2len - + (sizeof(*v4h) + sizeof(*udph))); + } } else { is_outh_ipv4 = 0; v6h = outh; v6h->payload_len = rte_cpu_to_be_16(plen - l2len - sizeof(*v6h)); + + if (sa->type & RTE_IPSEC_SATP_NATT_ENABLE) { + udph = (struct rte_udp_hdr *)(v6h + 1); + udph->dgram_len = rte_cpu_to_be_16(plen - l2len - + (sizeof(*v6h) + sizeof(*udph))); + } } if (sa->type & TUN_HDR_MSK) diff --git a/lib/ipsec/rte_ipsec_sa.h b/lib/ipsec/rte_ipsec_sa.h index cf51ad8338..40d1e70d45 100644 --- a/lib/ipsec/rte_ipsec_sa.h +++ b/lib/ipsec/rte_ipsec_sa.h @@ -76,6 +76,7 @@ struct rte_ipsec_sa_prm { * - inbound/outbound * - mode (TRANSPORT/TUNNEL) * - for TUNNEL outer IP version (IPv4/IPv6) + * - NAT-T UDP encapsulated (TUNNEL mode only) * - are SA SQN operations 'atomic' * - ESN enabled/disabled * ... @@ -86,7 +87,8 @@ enum { RTE_SATP_LOG2_PROTO, RTE_SATP_LOG2_DIR, RTE_SATP_LOG2_MODE, - RTE_SATP_LOG2_SQN = RTE_SATP_LOG2_MODE + 2, + RTE_SATP_LOG2_NATT = RTE_SATP_LOG2_MODE + 2, + RTE_SATP_LOG2_SQN, RTE_SATP_LOG2_ESN, RTE_SATP_LOG2_ECN, RTE_SATP_LOG2_DSCP @@ -109,6 +111,10 @@ enum { #define RTE_IPSEC_SATP_MODE_TUNLV4 (1ULL << RTE_SATP_LOG2_MODE) #define RTE_IPSEC_SATP_MODE_TUNLV6 (2ULL << RTE_SATP_LOG2_MODE) +#define RTE_IPSEC_SATP_NATT_MASK (1ULL << RTE_SATP_LOG2_NATT) +#define RTE_IPSEC_SATP_NATT_DISABLE (0ULL << RTE_SATP_LOG2_NATT) +#define RTE_IPSEC_SATP_NATT_ENABLE (1ULL << RTE_SATP_LOG2_NATT) + #define RTE_IPSEC_SATP_SQN_MASK (1ULL << RTE_SATP_LOG2_SQN) #define RTE_IPSEC_SATP_SQN_RAW (0ULL << RTE_SATP_LOG2_SQN) #define RTE_IPSEC_SATP_SQN_ATOM (1ULL << RTE_SATP_LOG2_SQN) diff --git a/lib/ipsec/sa.c b/lib/ipsec/sa.c index 2ecbbce0a4..8e369e4618 100644 --- a/lib/ipsec/sa.c +++ b/lib/ipsec/sa.c @@ -217,6 +217,10 @@ fill_sa_type(const struct rte_ipsec_sa_prm *prm, uint64_t *type) } else return -EINVAL; + /* check for UDP encapsulation flag */ + if (prm->ipsec_xform.options.udp_encap == 1) + tp |= RTE_IPSEC_SATP_NATT_ENABLE; + /* check for ESN flag */ if (prm->ipsec_xform.options.esn == 0) tp |= RTE_IPSEC_SATP_ESN_DISABLE; @@ -372,7 +376,8 @@ esp_sa_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm, const struct crypto_xform *cxf) { static const uint64_t msk = RTE_IPSEC_SATP_DIR_MASK | - RTE_IPSEC_SATP_MODE_MASK; + RTE_IPSEC_SATP_MODE_MASK | + RTE_IPSEC_SATP_NATT_MASK; if (prm->ipsec_xform.options.ecn) sa->tos_mask |= RTE_IPV4_HDR_ECN_MASK; @@ -475,10 +480,16 @@ esp_sa_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm, case (RTE_IPSEC_SATP_DIR_IB | RTE_IPSEC_SATP_MODE_TRANS): esp_inb_init(sa); break; + case (RTE_IPSEC_SATP_DIR_OB | RTE_IPSEC_SATP_MODE_TUNLV4 | + RTE_IPSEC_SATP_NATT_ENABLE): + case (RTE_IPSEC_SATP_DIR_OB | RTE_IPSEC_SATP_MODE_TUNLV6 | + RTE_IPSEC_SATP_NATT_ENABLE): case (RTE_IPSEC_SATP_DIR_OB | RTE_IPSEC_SATP_MODE_TUNLV4): case (RTE_IPSEC_SATP_DIR_OB | RTE_IPSEC_SATP_MODE_TUNLV6): esp_outb_tun_init(sa, prm); break; + case (RTE_IPSEC_SATP_DIR_OB | RTE_IPSEC_SATP_MODE_TRANS | + RTE_IPSEC_SATP_NATT_ENABLE): case (RTE_IPSEC_SATP_DIR_OB | RTE_IPSEC_SATP_MODE_TRANS): esp_outb_init(sa, 0); break; diff --git a/lib/ipsec/sa.h b/lib/ipsec/sa.h index 5e237f3525..3f38921eb3 100644 --- a/lib/ipsec/sa.h +++ b/lib/ipsec/sa.h @@ -101,6 +101,10 @@ struct rte_ipsec_sa { uint64_t msk; uint64_t val; } tx_offload; + struct { + uint16_t sport; + uint16_t dport; + } natt; uint32_t salt; uint8_t algo_type; uint8_t proto; /* next proto */ -- 2.25.1