From patchwork Wed Jun 26 15:05:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fan Zhang X-Patchwork-Id: 55414 X-Patchwork-Delegate: gakhil@marvell.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 565DB2B99; Wed, 26 Jun 2019 17:11:07 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 2CA0DF04 for ; Wed, 26 Jun 2019 17:11:04 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Jun 2019 08:11:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,420,1557212400"; d="scan'208";a="360336709" Received: from silpixa00398673.ir.intel.com (HELO silpixa00398673.ger.corp.intel.com) ([10.237.223.136]) by fmsmga005.fm.intel.com with ESMTP; 26 Jun 2019 08:11:02 -0700 From: Fan Zhang To: dev@dpdk.org Cc: akhil.goyal@nxp.com, konstantin.ananyev@intel.com, Fan Zhang , Marko Kovacevic Date: Wed, 26 Jun 2019 16:05:08 +0100 Message-Id: <20190626150509.17442-2-roy.fan.zhang@intel.com> X-Mailer: git-send-email 2.14.5 In-Reply-To: <20190626150509.17442-1-roy.fan.zhang@intel.com> References: <20190625134321.71595-1-roy.fan.zhang@intel.com> <20190626150509.17442-1-roy.fan.zhang@intel.com> Subject: [dpdk-dev] [PATCH v3 1/2] lib/ipsec: add support for header construction X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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 RFC 4301(5.1.2) to update of Type of service field and Traffic class field bits inside ipv4/ipv6 packets for outbound cases and inbound cases which deals with the update of the DSCP/ENC bits inside each of the fields. Signed-off-by: Marko Kovacevic Signed-off-by: Fan Zhang --- lib/librte_ipsec/esp_inb.c | 16 +++- lib/librte_ipsec/esp_outb.c | 3 +- lib/librte_ipsec/iph.h | 148 +++++++++++++++++++++++++++++++++++-- lib/librte_ipsec/rte_ipsec_sa.h | 25 +++++++ lib/librte_ipsec/sa.c | 17 +++++ lib/librte_ipsec/sa.h | 2 + lib/librte_net/rte_ip.h | 11 +++ lib/librte_security/rte_security.h | 9 +++ 8 files changed, 221 insertions(+), 10 deletions(-) diff --git a/lib/librte_ipsec/esp_inb.c b/lib/librte_ipsec/esp_inb.c index fb10b7085..3e1894e13 100644 --- a/lib/librte_ipsec/esp_inb.c +++ b/lib/librte_ipsec/esp_inb.c @@ -464,13 +464,15 @@ tun_process(const struct rte_ipsec_sa *sa, struct rte_mbuf *mb[], uint32_t hl[num], to[num]; struct esp_tail espt[num]; struct rte_mbuf *ml[num]; + const uint32_t cofs = sa->ctp.cipher.offset; + void *inner_h; + const void *outter_h; /* * remove icv, esp trailer and high-order * 32 bits of esn from packet length */ const uint32_t tlen = sa->icv_len + sizeof(espt[0]) + sqh_len; - const uint32_t cofs = sa->ctp.cipher.offset; /* * to minimize stalls due to load latency, @@ -489,9 +491,17 @@ tun_process(const struct rte_ipsec_sa *sa, struct rte_mbuf *mb[], if (tun_process_check(mb[i], &ml[i], &to[i], espt[i], adj, tl, sa->proto) == 0) { + outter_h = rte_pktmbuf_mtod_offset(mb[i], uint8_t *, + mb[i]->l2_len); + /* modify packet's layout */ - tun_process_step2(mb[i], ml[i], hl[i], adj, to[i], - tl, sqn + k); + + inner_h = tun_process_step2(mb[i], ml[i], hl[i], adj, + to[i], tl, sqn + k); + + if ((sa->type & TUN_HDR_MSK) != 0) + update_inb_tun_l3_hdr(sa, inner_h, outter_h); + /* update mbuf's metadata */ tun_process_step3(mb[i], sa->tx_offload.msk, sa->tx_offload.val); diff --git a/lib/librte_ipsec/esp_outb.c b/lib/librte_ipsec/esp_outb.c index 8c6db3553..0c72a9d5f 100644 --- a/lib/librte_ipsec/esp_outb.c +++ b/lib/librte_ipsec/esp_outb.c @@ -152,7 +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 - sqh_len, + + update_outb_tun_l3hdr(sa, ph + sa->hdr_l3_off, ph + hlen, mb->pkt_len, sa->hdr_l3_off, sqn_low16(sqc)); /* update spi, seqn and iv */ diff --git a/lib/librte_ipsec/iph.h b/lib/librte_ipsec/iph.h index 62d78b7b1..1bde9daeb 100644 --- a/lib/librte_ipsec/iph.h +++ b/lib/librte_ipsec/iph.h @@ -5,14 +5,17 @@ #ifndef _IPH_H_ #define _IPH_H_ -#include - /** * @file iph.h * Contains functions/structures/macros to manipulate IPv4/IPv6 headers * used internally by ipsec library. */ +#define IPV6_DSCP_MASK (RTE_IP_DSCP_MASK << RTE_IPV6_HDR_TC_SHIFT) +#define IPV6_ECN_MASK (RTE_IP_ECN_MASK << RTE_IPV6_HDR_TC_SHIFT) +#define IPV6_TOS_MASK (IPV6_ECN_MASK | IPV6_DSCP_MASK) +#define IPV6_ECN_CE IPV6_ECN_MASK + /* * Move preceding (L3) headers down to remove ESP header and IV. */ @@ -37,6 +40,26 @@ insert_esph(char *np, char *op, uint32_t hlen) np[i] = op[i]; } +static inline uint8_t +get_ipv6_tos(rte_be32_t vtc_flow) +{ + uint32_t v; + + v = rte_be_to_cpu_32(vtc_flow); + return v >> RTE_IPV6_HDR_TC_SHIFT; +} + +static inline rte_be32_t +set_ipv6_tos(rte_be32_t vtc_flow, uint32_t tos) +{ + uint32_t v; + + v = rte_cpu_to_be_32(tos << RTE_IPV6_HDR_TC_SHIFT); + vtc_flow &= ~rte_cpu_to_be_32(IPV6_TOS_MASK); + + return (v | vtc_flow); +} + /* update original ip header fields for transport case */ static inline int update_trs_l3hdr(const struct rte_ipsec_sa *sa, void *p, uint32_t plen, @@ -101,23 +124,136 @@ update_trs_l3hdr(const struct rte_ipsec_sa *sa, void *p, uint32_t plen, return rc; } +/** + * Update type-of-service/traffic-class field of inbound/outbound tunnel + * packet. + * + * @param ref_h: reference header, for outbound it is inner header, otherwise + * outer header. + * @param update_h: header to be updated tos/tc field, for outbound it is outer + * header, otherwise inner header. + * @param tos_mask: type-of-service mask stored in sa. + * @param is_outh_ipv4: 1 if outer header is ipv4, 0 if it is ipv6. + * @param is_inner_ipv4: 1 if inner header is ipv4, 0 if it is ipv6. + * @param is_inbound: 1 if it is a inbound packet, 0 if it is outbound. + */ +static inline void +update_tun_tos(const void *ref_h, void *update_h, uint32_t tos_mask, + uint8_t is_outh_ipv4, uint8_t is_inh_ipv4, uint8_t is_inbound) +{ + uint8_t idx = ((is_inbound << 2) | (is_outh_ipv4 << 1) | is_inh_ipv4); + struct rte_ipv4_hdr *v4out_h; + struct rte_ipv6_hdr *v6out_h; + struct rte_ipv4_hdr *v4in_h; + struct rte_ipv6_hdr *v6in_h; + uint32_t itp, otp; + uint8_t ecn_v4out, ecn_v4in; + uint32_t ecn_v6out, ecn_v6in; + + switch (idx) { + /* outbound */ + case 0: /*outh ipv6, inh ipv6 */ + v6out_h = update_h; + otp = get_ipv6_tos(v6out_h->vtc_flow) & ~tos_mask; + itp = get_ipv6_tos(((const struct rte_ipv6_hdr *)ref_h)-> + vtc_flow) & tos_mask; + v6out_h->vtc_flow = set_ipv6_tos(v6out_h->vtc_flow, otp | itp); + break; + case 1: /*outh ipv6, inh ipv4 */ + v6out_h = update_h; + otp = get_ipv6_tos(v6out_h->vtc_flow) & ~tos_mask; + itp = ((const struct rte_ipv4_hdr *)ref_h)->type_of_service & + tos_mask; + v6out_h->vtc_flow = set_ipv6_tos(v6out_h->vtc_flow, otp | itp); + break; + case 2: /*outh ipv4, inh ipv6 */ + v4out_h = update_h; + otp = v4out_h->type_of_service & ~tos_mask; + itp = get_ipv6_tos(((const struct rte_ipv6_hdr *)ref_h)-> + vtc_flow) & tos_mask; + v4out_h->type_of_service = (otp | itp); + break; + case 3: /* outh ipv4, inh ipv4 */ + v4out_h = update_h; + otp = v4out_h->type_of_service & ~tos_mask; + itp = ((const struct rte_ipv4_hdr *)ref_h)->type_of_service & + tos_mask; + v4out_h->type_of_service = (otp | itp); + break; + /* inbound */ + case 4: /* outh ipv6, inh ipv6 */ + v6in_h = update_h; + ecn_v6out = ((const struct rte_ipv6_hdr *)ref_h)->vtc_flow & + rte_cpu_to_be_32(IPV6_ECN_MASK); + ecn_v6in = v6in_h->vtc_flow & rte_cpu_to_be_32(IPV6_ECN_MASK); + if ((ecn_v6out == rte_cpu_to_be_32(IPV6_ECN_CE)) && + (ecn_v6in != 0)) + v6in_h->vtc_flow |= rte_cpu_to_be_32(IPV6_ECN_CE); + break; + case 5: /* outh ipv6, inh ipv4 */ + v4in_h = update_h; + ecn_v6out = ((const struct rte_ipv6_hdr *)ref_h)->vtc_flow & + rte_cpu_to_be_32(IPV6_ECN_MASK); + ecn_v4in = v4in_h->type_of_service & RTE_IP_ECN_MASK; + if ((ecn_v6out == rte_cpu_to_be_32(IPV6_ECN_CE)) && + (ecn_v4in != 0)) + v4in_h->type_of_service |= RTE_IP_ECN_CE; + break; + case 6: /* outh ipv4, inh ipv6 */ + v6in_h = update_h; + ecn_v4out = ((const struct rte_ipv4_hdr *)ref_h)-> + type_of_service & RTE_IP_ECN_MASK; + ecn_v6in = v6in_h->vtc_flow & rte_cpu_to_be_32(IPV6_ECN_MASK); + if (ecn_v4out == RTE_IP_ECN_CE && ecn_v6in != 0) + v6in_h->vtc_flow |= rte_cpu_to_be_32(IPV6_ECN_CE); + break; + case 7: /* outh ipv4, inh ipv4 */ + v4in_h = update_h; + ecn_v4out = ((const struct rte_ipv4_hdr *)ref_h)-> + type_of_service & RTE_IP_ECN_MASK; + ecn_v4in = v4in_h->type_of_service & RTE_IP_ECN_MASK; + if (ecn_v4out == RTE_IP_ECN_CE && ecn_v4in != 0) + v4in_h->type_of_service |= RTE_IP_ECN_CE; + break; + } +} + + /* update original and new ip header fields for tunnel case */ static inline void -update_tun_l3hdr(const struct rte_ipsec_sa *sa, void *p, uint32_t plen, - uint32_t l2len, rte_be16_t pid) +update_outb_tun_l3hdr(const struct rte_ipsec_sa *sa, void *outh, + const void *inh, uint32_t plen, uint32_t l2len, rte_be16_t pid) { struct rte_ipv4_hdr *v4h; struct rte_ipv6_hdr *v6h; + uint8_t is_out_ipv4; if (sa->type & RTE_IPSEC_SATP_MODE_TUNLV4) { - v4h = p; + is_out_ipv4 = 1; + v4h = outh; v4h->packet_id = pid; v4h->total_length = rte_cpu_to_be_16(plen - l2len); } else { - v6h = p; + is_out_ipv4 = 0; + v6h = outh; v6h->payload_len = rte_cpu_to_be_16(plen - l2len - sizeof(*v6h)); } + + if (sa->type & TUN_HDR_MSK) + update_tun_tos(inh, outh, sa->tos_mask, is_out_ipv4, + ((sa->type & RTE_IPSEC_SATP_IPV_MASK) == + RTE_IPSEC_SATP_IPV4), 0); +} + +static inline void +update_inb_tun_l3_hdr(const struct rte_ipsec_sa *sa, void *ip_inner, + const void *ip_outter) +{ + update_tun_tos(ip_outter, ip_inner, sa->tos_mask, + ((sa->type & RTE_IPSEC_SATP_MODE_TUNLV4) != 0), + ((sa->type & RTE_IPSEC_SATP_IPV_MASK) == RTE_IPSEC_SATP_IPV4), + 1); } #endif /* _IPH_H_ */ diff --git a/lib/librte_ipsec/rte_ipsec_sa.h b/lib/librte_ipsec/rte_ipsec_sa.h index fd9b3ed60..8f179ee9d 100644 --- a/lib/librte_ipsec/rte_ipsec_sa.h +++ b/lib/librte_ipsec/rte_ipsec_sa.h @@ -95,6 +95,11 @@ enum { RTE_SATP_LOG2_MODE, RTE_SATP_LOG2_SQN = RTE_SATP_LOG2_MODE + 2, RTE_SATP_LOG2_ESN, + RTE_SATP_LOG2_ECN, + RTE_SATP_LOG2_DSCP, + RTE_SATP_LOG2_TTL, + RTE_SATP_LOG2_DF, + RTE_SATP_LOG2_FLABEL, RTE_SATP_LOG2_NUM }; @@ -123,6 +128,26 @@ enum { #define RTE_IPSEC_SATP_ESN_DISABLE (0ULL << RTE_SATP_LOG2_ESN) #define RTE_IPSEC_SATP_ESN_ENABLE (1ULL << RTE_SATP_LOG2_ESN) +#define RTE_IPSEC_SATP_ECN_MASK (1ULL << RTE_SATP_LOG2_ECN) +#define RTE_IPSEC_SATP_ECN_DISABLE (0ULL << RTE_SATP_LOG2_ECN) +#define RTE_IPSEC_SATP_ECN_ENABLE (1ULL << RTE_SATP_LOG2_ECN) + +#define RTE_IPSEC_SATP_DSCP_MASK (1ULL << RTE_SATP_LOG2_DSCP) +#define RTE_IPSEC_SATP_DSCP_DISABLE (0ULL << RTE_SATP_LOG2_DSCP) +#define RTE_IPSEC_SATP_DSCP_ENABLE (1ULL << RTE_SATP_LOG2_DSCP) + +#define RTE_IPSEC_SATP_TTL_MASK (1ULL << RTE_SATP_LOG2_TTL) +#define RTE_IPSEC_SATP_TTL_DISABLE (0ULL << RTE_SATP_LOG2_TTL) +#define RTE_IPSEC_SATP_TTL_ENABLE (1ULL << RTE_SATP_LOG2_TTL) + +#define RTE_IPSEC_SATP_DF_MASK (1ULL << RTE_SATP_LOG2_DF) +#define RTE_IPSEC_SATP_DF_DISABLE (0ULL << RTE_SATP_LOG2_DF) +#define RTE_IPSEC_SATP_DF_ENABLE (1ULL << RTE_SATP_LOG2_DF) + +#define RTE_IPSEC_SATP_FLABEL_MASK (1ULL << RTE_SATP_LOG2_FLABEL) +#define RTE_IPSEC_SATP_FLABEL_DISABLE (0ULL << RTE_SATP_LOG2_FLABEL) +#define RTE_IPSEC_SATP_FLABEL_ENABLE (1ULL << RTE_SATP_LOG2_FLABEL) + /** * get type of given SA * @return diff --git a/lib/librte_ipsec/sa.c b/lib/librte_ipsec/sa.c index 087de958a..61d817dfc 100644 --- a/lib/librte_ipsec/sa.c +++ b/lib/librte_ipsec/sa.c @@ -220,6 +220,17 @@ fill_sa_type(const struct rte_ipsec_sa_prm *prm, uint64_t *type) else tp |= RTE_IPSEC_SATP_SQN_RAW; + /* check for ECN flag */ + if (prm->ipsec_xform.options.ecn == 0) + tp |= RTE_IPSEC_SATP_ECN_DISABLE; + else + tp |= RTE_IPSEC_SATP_ECN_ENABLE; + /* check for DSCP flag */ + if (prm->ipsec_xform.options.copy_dscp == 0) + tp |= RTE_IPSEC_SATP_DSCP_DISABLE; + else + tp |= RTE_IPSEC_SATP_DSCP_ENABLE; + *type = tp; return 0; } @@ -310,6 +321,12 @@ esp_sa_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm, static const uint64_t msk = RTE_IPSEC_SATP_DIR_MASK | RTE_IPSEC_SATP_MODE_MASK; + if (prm->ipsec_xform.options.ecn) + sa->tos_mask |= RTE_IP_ECN_MASK; + + if (prm->ipsec_xform.options.copy_dscp) + sa->tos_mask |= RTE_IP_DSCP_MASK; + if (cxf->aead != NULL) { switch (cxf->aead->algo) { case RTE_CRYPTO_AEAD_AES_GCM: diff --git a/lib/librte_ipsec/sa.h b/lib/librte_ipsec/sa.h index 20c0a65c0..51e69ad05 100644 --- a/lib/librte_ipsec/sa.h +++ b/lib/librte_ipsec/sa.h @@ -10,6 +10,7 @@ #define IPSEC_MAX_HDR_SIZE 64 #define IPSEC_MAX_IV_SIZE 16 #define IPSEC_MAX_IV_QWORD (IPSEC_MAX_IV_SIZE / sizeof(uint64_t)) +#define TUN_HDR_MSK (RTE_IPSEC_SATP_ECN_MASK | RTE_IPSEC_SATP_DSCP_MASK) /* padding alignment for different algorithms */ enum { @@ -103,6 +104,7 @@ struct rte_ipsec_sa { uint8_t iv_ofs; /* offset for algo-specific IV inside crypto op */ uint8_t iv_len; uint8_t pad_align; + uint8_t tos_mask; /* template for tunnel header */ uint8_t hdr[IPSEC_MAX_HDR_SIZE]; diff --git a/lib/librte_net/rte_ip.h b/lib/librte_net/rte_ip.h index c2c67b85d..85c53e8d9 100644 --- a/lib/librte_net/rte_ip.h +++ b/lib/librte_net/rte_ip.h @@ -46,6 +46,17 @@ struct rte_ipv4_hdr { (((b) & 0xff) << 16) | \ (((c) & 0xff) << 8) | \ ((d) & 0xff)) +/** + * RFC 3168 Explicit Congestion Notification (ECN) + * * ECT(1) (ECN-Capable Transport(1)) + * * ECT(0) (ECN-Capable Transport(0)) + * * ECT(CE)(CE (Congestion Experienced)) + */ +#define RTE_IP_ECN_MASK (0x03) +#define RTE_IP_ECN_CE RTE_IP_ECN_MASK + +/** Packet Option Masks */ +#define RTE_IP_DSCP_MASK (0xFC) /** Maximal IPv4 packet length (including a header) */ #define RTE_IPV4_MAX_PKT_LEN 65535 diff --git a/lib/librte_security/rte_security.h b/lib/librte_security/rte_security.h index 76f54e0e0..d0492928c 100644 --- a/lib/librte_security/rte_security.h +++ b/lib/librte_security/rte_security.h @@ -163,6 +163,15 @@ struct rte_security_ipsec_sa_options { * * 0: Inner packet is not modified. */ uint32_t dec_ttl : 1; + + /**< Explicit Congestion Notification (ECN) + * + * * 1: In tunnel mode, enable outer header ECN Field copied from + * inner header in tunnel encapsulation, or inner header ECN + * field construction in decapsulation. + * * 0: Inner/outer header are not modified. + */ + uint32_t ecn : 1; }; /** IPSec security association direction */ From patchwork Wed Jun 26 15:05:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fan Zhang X-Patchwork-Id: 55415 X-Patchwork-Delegate: gakhil@marvell.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 71E312BF2; Wed, 26 Jun 2019 17:11:10 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id A22592AA0 for ; Wed, 26 Jun 2019 17:11:05 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Jun 2019 08:11:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,420,1557212400"; d="scan'208";a="360336719" Received: from silpixa00398673.ir.intel.com (HELO silpixa00398673.ger.corp.intel.com) ([10.237.223.136]) by fmsmga005.fm.intel.com with ESMTP; 26 Jun 2019 08:11:04 -0700 From: Fan Zhang To: dev@dpdk.org Cc: akhil.goyal@nxp.com, konstantin.ananyev@intel.com, Fan Zhang Date: Wed, 26 Jun 2019 16:05:09 +0100 Message-Id: <20190626150509.17442-3-roy.fan.zhang@intel.com> X-Mailer: git-send-email 2.14.5 In-Reply-To: <20190626150509.17442-1-roy.fan.zhang@intel.com> References: <20190625134321.71595-1-roy.fan.zhang@intel.com> <20190626150509.17442-1-roy.fan.zhang@intel.com> Subject: [dpdk-dev] [PATCH v3 2/2] examples/ipsec-secgw: support header reconstruction X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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" This patch updates the ipsec-secgw application to support header reconstruction. In addition a series of tests have been added to prove the implementation's correctness. Signed-off-by: Fan Zhang --- doc/guides/rel_notes/release_19_08.rst | 6 + examples/ipsec-secgw/sa.c | 2 + examples/ipsec-secgw/test/run_test.sh | 3 +- .../test/tun_null_header_reconstruct.py | 477 +++++++++++++++++++++ 4 files changed, 487 insertions(+), 1 deletion(-) create mode 100755 examples/ipsec-secgw/test/tun_null_header_reconstruct.py diff --git a/doc/guides/rel_notes/release_19_08.rst b/doc/guides/rel_notes/release_19_08.rst index 7c0435a43..d949dbcfb 100644 --- a/doc/guides/rel_notes/release_19_08.rst +++ b/doc/guides/rel_notes/release_19_08.rst @@ -99,6 +99,12 @@ New Features Updated ``librte_telemetry`` to fetch the global metrics from the ``librte_metrics`` library. +* **Updated IPSec library Header Reconstruction.** + + Updated the IPSec library with ECN and DSCP field header reconstruction + feature followed by RFC4301. The IPSec-secgw sample application is also + updated to support this feature by default. + Removed Items ------------- diff --git a/examples/ipsec-secgw/sa.c b/examples/ipsec-secgw/sa.c index 7262ccee8..447f9dbb4 100644 --- a/examples/ipsec-secgw/sa.c +++ b/examples/ipsec-secgw/sa.c @@ -991,6 +991,8 @@ fill_ipsec_sa_prm(struct rte_ipsec_sa_prm *prm, const struct ipsec_sa *ss, prm->ipsec_xform.mode = (ss->flags == TRANSPORT) ? RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT : RTE_SECURITY_IPSEC_SA_MODE_TUNNEL; + prm->ipsec_xform.options.ecn = 1; + prm->ipsec_xform.options.copy_dscp = 1; if (ss->flags == IP4_TUNNEL) { prm->ipsec_xform.tunnel.type = RTE_SECURITY_IPSEC_TUNNEL_IPV4; diff --git a/examples/ipsec-secgw/test/run_test.sh b/examples/ipsec-secgw/test/run_test.sh index 4969effdb..3f73545c9 100755 --- a/examples/ipsec-secgw/test/run_test.sh +++ b/examples/ipsec-secgw/test/run_test.sh @@ -61,7 +61,8 @@ trs_3descbc_sha1_old \ trs_3descbc_sha1_esn \ trs_3descbc_sha1_esn_atom" -PKT_TESTS="trs_ipv6opts" +PKT_TESTS="trs_ipv6opts \ +tun_null_header_reconstruct" DIR=$(dirname $0) diff --git a/examples/ipsec-secgw/test/tun_null_header_reconstruct.py b/examples/ipsec-secgw/test/tun_null_header_reconstruct.py new file mode 100755 index 000000000..f2653b351 --- /dev/null +++ b/examples/ipsec-secgw/test/tun_null_header_reconstruct.py @@ -0,0 +1,477 @@ +#!/usr/bin/env python3 + +from scapy.all import * +import unittest +import pkttest + +#{ipv4{ipv4}} test +SRC_ADDR_IPV4_1 = "192.168.1.1" +DST_ADDR_IPV4_1 = "192.168.2.1" + +#{ipv6{ipv6}} test +SRC_ADDR_IPV6_1 = "1111:0000:0000:0000:0000:0000:0000:0001" +DST_ADDR_IPV6_1 = "2222:0000:0000:0000:0000:0000:0000:0001" + +#{ipv4{ipv6}} test +SRC_ADDR_IPV4_2 = "192.168.11.1" +DST_ADDR_IPV4_2 = "192.168.12.1" +SRC_ADDR_IPV6_2 = "1111:0000:0000:0000:0000:0000:0001:0001" +DST_ADDR_IPV6_2 = "2222:0000:0000:0000:0000:0000:0001:0001" + +#{ipv6{ipv4}} test +SRC_ADDR_IPV4_3 = "192.168.21.1" +DST_ADDR_IPV4_3 = "192.168.22.1" +SRC_ADDR_IPV6_3 = "1111:0000:0000:0000:0000:0001:0001:0001" +DST_ADDR_IPV6_3 = "2222:0000:0000:0000:0000:0001:0001:0001" + +def config(): + return """ +#outter-ipv4 inner-ipv4 tunnel mode test +sp ipv4 out esp protect 5 pri 1 \\ +src {0}/32 \\ +dst {1}/32 \\ +sport 0:65535 dport 0:65535 + +sp ipv4 in esp protect 6 pri 1 \\ +src {1}/32 \\ +dst {0}/32 \\ +sport 0:65535 dport 0:65535 + +sa out 5 cipher_algo null auth_algo null mode ipv4-tunnel \\ +src {0} dst {1} +sa in 6 cipher_algo null auth_algo null mode ipv4-tunnel \\ +src {1} dst {0} + +rt ipv4 dst {0}/32 port 1 +rt ipv4 dst {1}/32 port 0 + +#outter-ipv6 inner-ipv6 tunnel mode test +sp ipv6 out esp protect 7 pri 1 \\ +src {2}/128 \\ +dst {3}/128 \\ +sport 0:65535 dport 0:65535 + +sp ipv6 in esp protect 8 pri 1 \\ +src {3}/128 \\ +dst {2}/128 \\ +sport 0:65535 dport 0:65535 + +sa out 7 cipher_algo null auth_algo null mode ipv6-tunnel \\ +src {2} dst {3} +sa in 8 cipher_algo null auth_algo null mode ipv6-tunnel \\ +src {3} dst {2} + +rt ipv6 dst {2}/128 port 1 +rt ipv6 dst {3}/128 port 0 + +#outter-ipv4 inner-ipv6 tunnel mode test +sp ipv6 out esp protect 9 pri 1 \\ +src {4}/128 \\ +dst {5}/128 \\ +sport 0:65535 dport 0:65535 + +sp ipv6 in esp protect 10 pri 1 \\ +src {5}/128 \\ +dst {4}/128 \\ +sport 0:65535 dport 0:65535 + +sa out 9 cipher_algo null auth_algo null mode ipv4-tunnel \\ +src {6} dst {7} +sa in 10 cipher_algo null auth_algo null mode ipv4-tunnel \\ +src {7} dst {6} + +rt ipv6 dst {4}/128 port 1 +rt ipv4 dst {7}/32 port 0 + +#outter-ipv6 inner-ipv4 tunnel mode test +sp ipv4 out esp protect 11 pri 1 \\ +src {8}/32 \\ +dst {9}/32 \\ +sport 0:65535 dport 0:65535 + +sp ipv4 in esp protect 12 pri 1 \\ +src {9}/32 \\ +dst {8}/32 \\ +sport 0:65535 dport 0:65535 + +sa out 11 cipher_algo null auth_algo null mode ipv6-tunnel \\ +src {10} dst {11} +sa in 12 cipher_algo null auth_algo null mode ipv6-tunnel \\ +src {11} dst {10} + +rt ipv4 dst {8}/32 port 1 +rt ipv6 dst {11}/128 port 0 +""".format(SRC_ADDR_IPV4_1, DST_ADDR_IPV4_1, + SRC_ADDR_IPV6_1, DST_ADDR_IPV6_1, + SRC_ADDR_IPV6_2, DST_ADDR_IPV6_2, SRC_ADDR_IPV4_2, DST_ADDR_IPV4_2, + SRC_ADDR_IPV4_3, DST_ADDR_IPV4_3, SRC_ADDR_IPV6_3, DST_ADDR_IPV6_3) + +ECN_ECT0 = 0x02 +ECN_ECT1 = 0x01 +ECN_CE = 0x03 +DSCP_1 = 0x04 +DSCP_3F = 0xFC + +class TestTunnelHeaderReconstruct(unittest.TestCase): + def setUp(self): + self.px = pkttest.PacketXfer() + th = IP(src=DST_ADDR_IPV4_1, dst=SRC_ADDR_IPV4_1) + self.sa_ipv4v4 = SecurityAssociation(ESP, spi=6, tunnel_header = th) + + th = IPv6(src=DST_ADDR_IPV6_1, dst=SRC_ADDR_IPV6_1) + self.sa_ipv6v6 = SecurityAssociation(ESP, spi=8, tunnel_header = th) + + th = IP(src=DST_ADDR_IPV4_2, dst=SRC_ADDR_IPV4_2) + self.sa_ipv4v6 = SecurityAssociation(ESP, spi=10, tunnel_header = th) + + th = IPv6(src=DST_ADDR_IPV6_3, dst=SRC_ADDR_IPV6_3) + self.sa_ipv6v4 = SecurityAssociation(ESP, spi=12, tunnel_header = th) + + def gen_pkt_plain_ipv4(self, src, dst, tos): + pkt = IP(src=src, dst=dst, tos=tos) + pkt /= UDP(sport=123,dport=456)/Raw(load="abc") + return pkt + + def gen_pkt_plain_ipv6(self, src, dst, tc): + pkt = IPv6(src=src, dst=dst, tc=tc) + pkt /= UDP(sport=123,dport=456)/Raw(load="abc") + return pkt + + def gen_pkt_tun_ipv4v4(self, tos_outter, tos_inner): + pkt = self.gen_pkt_plain_ipv4(DST_ADDR_IPV4_1, SRC_ADDR_IPV4_1, + tos_inner) + pkt = self.sa_ipv4v4.encrypt(pkt) + self.assertEqual(pkt[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(pkt[ESP].spi, 6) + pkt[IP].tos = tos_outter + return pkt + + def gen_pkt_tun_ipv6v6(self, tc_outter, tc_inner): + pkt = self.gen_pkt_plain_ipv6(DST_ADDR_IPV6_1, SRC_ADDR_IPV6_1, + tc_inner) + pkt = self.sa_ipv6v6.encrypt(pkt) + self.assertEqual(pkt[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(pkt[ESP].spi, 8) + pkt[IPv6].tc = tc_outter + return pkt + + def gen_pkt_tun_ipv4v6(self, tos_outter, tc_inner): + pkt = self.gen_pkt_plain_ipv6(DST_ADDR_IPV6_2, SRC_ADDR_IPV6_2, + tc_inner) + pkt = self.sa_ipv4v6.encrypt(pkt) + self.assertEqual(pkt[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(pkt[ESP].spi, 10) + pkt[IP].tos = tos_outter + return pkt + + def gen_pkt_tun_ipv6v4(self, tc_outter, tos_inner): + pkt = self.gen_pkt_plain_ipv4(DST_ADDR_IPV4_3, SRC_ADDR_IPV4_3, + tos_inner) + pkt = self.sa_ipv6v4.encrypt(pkt) + self.assertEqual(pkt[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(pkt[ESP].spi, 12) + pkt[IPv6].tc = tc_outter + return pkt + +#RFC4301 5.1.2.1 & 5.1.2.2, outbound packets shall be copied ECN field + def test_outb_ipv4v4_ecn(self): + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_1, DST_ADDR_IPV4_1, + ECN_ECT1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 5) + self.assertEqual(resp[IP].tos, ECN_ECT1) + + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_1, DST_ADDR_IPV4_1, + ECN_ECT0) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 5) + self.assertEqual(resp[IP].tos, ECN_ECT0) + + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_1, DST_ADDR_IPV4_1, + ECN_CE) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 5) + self.assertEqual(resp[IP].tos, ECN_CE) + + def test_outb_ipv6v6_ecn(self): + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_1, DST_ADDR_IPV6_1, + ECN_ECT1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[IPv6].tc, ECN_ECT1) + + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_1, DST_ADDR_IPV6_1, + ECN_ECT0) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 7) + self.assertEqual(resp[IPv6].tc, ECN_ECT0) + + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_1, DST_ADDR_IPV6_1, + ECN_CE) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 7) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + def test_outb_ipv4v6_ecn(self): + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_2, DST_ADDR_IPV6_2, + ECN_ECT1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[IP].tos, ECN_ECT1) + + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_2, DST_ADDR_IPV6_2, + ECN_ECT0) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[IP].tos, ECN_ECT0) + + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_2, DST_ADDR_IPV6_2, + ECN_CE) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[IP].tos, ECN_CE) + + def test_outb_ipv6v4_ecn(self): + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_3, DST_ADDR_IPV4_3, + ECN_ECT1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[IPv6].tc, ECN_ECT1) + + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_3, DST_ADDR_IPV4_3, + ECN_ECT0) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[IPv6].tc, ECN_ECT0) + + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_3, DST_ADDR_IPV4_3, + ECN_CE) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + +#RFC4301 5.1.2.1 & 5.1.2.2, if outbound packets ECN is CE (0x3), inbound packets +#ECN is overwritten to CE, otherwise no change + +#Outter header not CE, Inner header should be no change + def test_inb_ipv4v4_ecn_inner_no_change(self): + pkt = self.gen_pkt_tun_ipv4v4(ECN_ECT1, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_ECT0) + + pkt = self.gen_pkt_tun_ipv4v4(ECN_ECT0, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_ECT1) + + pkt = self.gen_pkt_tun_ipv4v4(ECN_ECT1, ECN_CE) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_CE) + + def test_inb_ipv6v6_ecn_inner_no_change(self): + pkt = self.gen_pkt_tun_ipv6v6(ECN_ECT1, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_ECT0) + + pkt = self.gen_pkt_tun_ipv6v6(ECN_ECT0, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_ECT1) + + pkt = self.gen_pkt_tun_ipv6v6(ECN_ECT1, ECN_CE) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + def test_inb_ipv4v6_ecn_inner_no_change(self): + pkt = self.gen_pkt_tun_ipv4v6(ECN_ECT1, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_ECT0) + + pkt = self.gen_pkt_tun_ipv4v6(ECN_ECT0, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_ECT1) + + pkt = self.gen_pkt_tun_ipv4v6(ECN_ECT1, ECN_CE) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + def test_inb_ipv6v4_ecn_inner_no_change(self): + pkt = self.gen_pkt_tun_ipv6v4(ECN_ECT1, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_ECT0) + + pkt = self.gen_pkt_tun_ipv6v4(ECN_ECT0, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_ECT1) + + pkt = self.gen_pkt_tun_ipv6v4(ECN_ECT1, ECN_CE) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_CE) + +#Outter header CE, Inner header should be changed to CE + def test_inb_ipv4v4_ecn_inner_change(self): + pkt = self.gen_pkt_tun_ipv4v4(ECN_CE, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_CE) + + pkt = self.gen_pkt_tun_ipv4v4(ECN_CE, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_CE) + + def test_inb_ipv6v6_ecn_inner_change(self): + pkt = self.gen_pkt_tun_ipv6v6(ECN_CE, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + pkt = self.gen_pkt_tun_ipv6v6(ECN_CE, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + def test_inb_ipv4v6_ecn_inner_change(self): + pkt = self.gen_pkt_tun_ipv4v6(ECN_CE, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + pkt = self.gen_pkt_tun_ipv4v6(ECN_CE, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, ECN_CE) + + def test_inb_ipv6v4_ecn_inner_change(self): + pkt = self.gen_pkt_tun_ipv6v4(ECN_CE, ECN_ECT0) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_CE) + + pkt = self.gen_pkt_tun_ipv6v4(ECN_CE, ECN_ECT1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, ECN_CE) + +#RFC4301 5.1.2.1.5 Outer DS field should be copied from Inner DS field + def test_outb_ipv4v4_dscp(self): + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_1, DST_ADDR_IPV4_1, + DSCP_1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 5) + self.assertEqual(resp[IP].tos, DSCP_1) + + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_1, DST_ADDR_IPV4_1, + DSCP_3F) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 5) + self.assertEqual(resp[IP].tos, DSCP_3F) + + def test_outb_ipv6v6_dscp(self): + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_1, DST_ADDR_IPV6_1, + DSCP_1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 7) + self.assertEqual(resp[IPv6].tc, DSCP_1) + + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_1, DST_ADDR_IPV6_1, + DSCP_3F) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 7) + self.assertEqual(resp[IPv6].tc, DSCP_3F) + + def test_outb_ipv4v6_dscp(self): + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_2, DST_ADDR_IPV6_2, + DSCP_1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 9) + self.assertEqual(resp[IP].tos, DSCP_1) + + pkt = self.gen_pkt_plain_ipv6(SRC_ADDR_IPV6_2, DST_ADDR_IPV6_2, + DSCP_3F) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 9) + self.assertEqual(resp[IP].tos, DSCP_3F) + + def test_outb_ipv6v4_dscp(self): + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_3, DST_ADDR_IPV4_3, + DSCP_1) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 11) + self.assertEqual(resp[IPv6].tc, DSCP_1) + + pkt = self.gen_pkt_plain_ipv4(SRC_ADDR_IPV4_3, DST_ADDR_IPV4_3, + DSCP_3F) + resp = self.px.xfer_unprotected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_ESP) + self.assertEqual(resp[ESP].spi, 11) + self.assertEqual(resp[IPv6].tc, DSCP_3F) + +#RFC4301 5.1.2.1.5 Inner DS field should not be affected by Outer DS field + def test_inb_ipv4v4_dscp(self): + pkt = self.gen_pkt_tun_ipv4v4(DSCP_3F, DSCP_1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, DSCP_1) + + pkt = self.gen_pkt_tun_ipv4v4(DSCP_1, DSCP_3F) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, DSCP_3F) + + def test_inb_ipv6v6_dscp(self): + pkt = self.gen_pkt_tun_ipv6v6(DSCP_3F, DSCP_1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, DSCP_1) + + pkt = self.gen_pkt_tun_ipv6v6(DSCP_1, DSCP_3F) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, DSCP_3F) + + def test_inb_ipv4v6_dscp(self): + pkt = self.gen_pkt_tun_ipv4v6(DSCP_3F, DSCP_1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, DSCP_1) + + pkt = self.gen_pkt_tun_ipv4v6(DSCP_1, DSCP_3F) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IPv6].nh, socket.IPPROTO_UDP) + self.assertEqual(resp[IPv6].tc, DSCP_3F) + + def test_inb_ipv6v4_dscp(self): + pkt = self.gen_pkt_tun_ipv6v4(DSCP_3F, DSCP_1) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, DSCP_1) + + pkt = self.gen_pkt_tun_ipv6v4(DSCP_1, DSCP_3F) + resp = self.px.xfer_protected(pkt) + self.assertEqual(resp[IP].proto, socket.IPPROTO_UDP) + self.assertEqual(resp[IP].tos, DSCP_3F) + +pkttest.pkttest()