From 2ed40da84809968f763d05557ee5dfce0f566220 Mon Sep 17 00:00:00 2001 From: Radu Nicolau Date: Thu, 14 Oct 2021 17:03:27 +0100 Subject: [PATCH] ipsec: support setting initial ESN value Update IPsec library to support initial ESN value. Signed-off-by: Declan Doherty Signed-off-by: Radu Nicolau Signed-off-by: Abhijit Sinha Signed-off-by: Daniel Martin Buckley Acked-by: Fan Zhang Acked-by: Konstantin Ananyev Acked-by: Akhil Goyal --- doc/guides/rel_notes/release_21_11.rst | 1 + lib/ipsec/sa.c | 18 +++++++++++------- 2 files changed, 12 insertions(+), 7 deletions(-) diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst index 0970ea4ee6..3370be94af 100644 --- a/doc/guides/rel_notes/release_21_11.rst +++ b/doc/guides/rel_notes/release_21_11.rst @@ -157,6 +157,7 @@ New Features and AES_GMAC. * Added support for NAT-T / UDP encapsulated ESP. * Added support for SA telemetry. + * Added support for setting a non default starting ESN value. * **Added multi-process support for testpmd.** diff --git a/lib/ipsec/sa.c b/lib/ipsec/sa.c index bbe2fa3612..9d5ffda627 100644 --- a/lib/ipsec/sa.c +++ b/lib/ipsec/sa.c @@ -294,11 +294,11 @@ esp_inb_tun_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm) * Init ESP outbound specific things. */ static void -esp_outb_init(struct rte_ipsec_sa *sa, uint32_t hlen) +esp_outb_init(struct rte_ipsec_sa *sa, uint32_t hlen, uint64_t sqn) { uint8_t algo_type; - sa->sqn.outb = 1; + sa->sqn.outb = sqn > 1 ? sqn : 1; algo_type = sa->algo_type; @@ -376,7 +376,7 @@ esp_outb_tun_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm) sa->tx_offload.val = rte_mbuf_tx_offload(sa->hdr_l3_off, sa->hdr_len - sa->hdr_l3_off, 0, 0, 0, 0, 0); - esp_outb_init(sa, sa->hdr_len); + esp_outb_init(sa, sa->hdr_len, prm->ipsec_xform.esn.value); } /* @@ -502,7 +502,7 @@ esp_sa_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm, 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); + esp_outb_init(sa, 0, prm->ipsec_xform.esn.value); break; } @@ -513,15 +513,19 @@ esp_sa_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm, * helper function, init SA replay structure. */ static void -fill_sa_replay(struct rte_ipsec_sa *sa, uint32_t wnd_sz, uint32_t nb_bucket) +fill_sa_replay(struct rte_ipsec_sa *sa, uint32_t wnd_sz, uint32_t nb_bucket, + uint64_t sqn) { sa->replay.win_sz = wnd_sz; sa->replay.nb_bucket = nb_bucket; sa->replay.bucket_index_mask = nb_bucket - 1; sa->sqn.inb.rsn[0] = (struct replay_sqn *)(sa + 1); - if ((sa->type & RTE_IPSEC_SATP_SQN_MASK) == RTE_IPSEC_SATP_SQN_ATOM) + sa->sqn.inb.rsn[0]->sqn = sqn; + if ((sa->type & RTE_IPSEC_SATP_SQN_MASK) == RTE_IPSEC_SATP_SQN_ATOM) { sa->sqn.inb.rsn[1] = (struct replay_sqn *) ((uintptr_t)sa->sqn.inb.rsn[0] + rsn_size(nb_bucket)); + sa->sqn.inb.rsn[1]->sqn = sqn; + } } int @@ -601,7 +605,7 @@ rte_ipsec_sa_init(struct rte_ipsec_sa *sa, const struct rte_ipsec_sa_prm *prm, /* fill replay window related fields */ if (nb != 0) - fill_sa_replay(sa, wsz, nb); + fill_sa_replay(sa, wsz, nb, prm->ipsec_xform.esn.value); return sz; } -- 2.20.1