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Diffstat (limited to 'examples/ipsec-secgw/esp.c')
-rw-r--r--examples/ipsec-secgw/esp.c144
1 files changed, 102 insertions, 42 deletions
diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
index 70bb81f7..c3efe52b 100644
--- a/examples/ipsec-secgw/esp.c
+++ b/examples/ipsec-secgw/esp.c
@@ -58,8 +58,11 @@ esp_inbound(struct rte_mbuf *m, struct ipsec_sa *sa,
struct rte_crypto_sym_op *sym_cop;
int32_t payload_len, ip_hdr_len;
- RTE_ASSERT(m != NULL);
RTE_ASSERT(sa != NULL);
+ if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO)
+ return 0;
+
+ RTE_ASSERT(m != NULL);
RTE_ASSERT(cop != NULL);
ip4 = rte_pktmbuf_mtod(m, struct ip *);
@@ -103,12 +106,12 @@ esp_inbound(struct rte_mbuf *m, struct ipsec_sa *sa,
aad = get_aad(m);
memcpy(aad, iv - sizeof(struct esp_hdr), 8);
sym_cop->aead.aad.data = aad;
- sym_cop->aead.aad.phys_addr = rte_pktmbuf_mtophys_offset(m,
+ sym_cop->aead.aad.phys_addr = rte_pktmbuf_iova_offset(m,
aad - rte_pktmbuf_mtod(m, uint8_t *));
sym_cop->aead.digest.data = rte_pktmbuf_mtod_offset(m, void*,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
- sym_cop->aead.digest.phys_addr = rte_pktmbuf_mtophys_offset(m,
+ sym_cop->aead.digest.phys_addr = rte_pktmbuf_iova_offset(m,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
} else {
sym_cop->cipher.data.offset = ip_hdr_len + sizeof(struct esp_hdr) +
@@ -154,7 +157,7 @@ esp_inbound(struct rte_mbuf *m, struct ipsec_sa *sa,
sym_cop->auth.digest.data = rte_pktmbuf_mtod_offset(m, void*,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
- sym_cop->auth.digest.phys_addr = rte_pktmbuf_mtophys_offset(m,
+ sym_cop->auth.digest.phys_addr = rte_pktmbuf_iova_offset(m,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
}
@@ -175,29 +178,44 @@ esp_inbound_post(struct rte_mbuf *m, struct ipsec_sa *sa,
RTE_ASSERT(sa != NULL);
RTE_ASSERT(cop != NULL);
+ if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
+ if (m->ol_flags & PKT_RX_SEC_OFFLOAD) {
+ if (m->ol_flags & PKT_RX_SEC_OFFLOAD_FAILED)
+ cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
+ else
+ cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
+ } else
+ cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
+ }
+
if (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS) {
RTE_LOG(ERR, IPSEC_ESP, "failed crypto op\n");
return -1;
}
- nexthdr = rte_pktmbuf_mtod_offset(m, uint8_t*,
- rte_pktmbuf_pkt_len(m) - sa->digest_len - 1);
- pad_len = nexthdr - 1;
+ if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO &&
+ sa->ol_flags & RTE_SECURITY_RX_HW_TRAILER_OFFLOAD) {
+ nexthdr = &m->inner_esp_next_proto;
+ } else {
+ nexthdr = rte_pktmbuf_mtod_offset(m, uint8_t*,
+ rte_pktmbuf_pkt_len(m) - sa->digest_len - 1);
+ pad_len = nexthdr - 1;
+
+ padding = pad_len - *pad_len;
+ for (i = 0; i < *pad_len; i++) {
+ if (padding[i] != i + 1) {
+ RTE_LOG(ERR, IPSEC_ESP, "invalid padding\n");
+ return -EINVAL;
+ }
+ }
- padding = pad_len - *pad_len;
- for (i = 0; i < *pad_len; i++) {
- if (padding[i] != i + 1) {
- RTE_LOG(ERR, IPSEC_ESP, "invalid padding\n");
+ if (rte_pktmbuf_trim(m, *pad_len + 2 + sa->digest_len)) {
+ RTE_LOG(ERR, IPSEC_ESP,
+ "failed to remove pad_len + digest\n");
return -EINVAL;
}
}
- if (rte_pktmbuf_trim(m, *pad_len + 2 + sa->digest_len)) {
- RTE_LOG(ERR, IPSEC_ESP,
- "failed to remove pad_len + digest\n");
- return -EINVAL;
- }
-
if (unlikely(sa->flags == TRANSPORT)) {
ip = rte_pktmbuf_mtod(m, struct ip *);
ip4 = (struct ip *)rte_pktmbuf_adj(m,
@@ -211,7 +229,8 @@ esp_inbound_post(struct rte_mbuf *m, struct ipsec_sa *sa,
/* XXX No option headers supported */
memmove(ip6, ip, sizeof(struct ip6_hdr));
ip6->ip6_nxt = *nexthdr;
- ip6->ip6_plen = htons(rte_pktmbuf_data_len(m));
+ ip6->ip6_plen = htons(rte_pktmbuf_data_len(m) -
+ sizeof(struct ip6_hdr));
}
} else
ipip_inbound(m, sizeof(struct esp_hdr) + sa->iv_len);
@@ -226,14 +245,13 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
struct ip *ip4;
struct ip6_hdr *ip6;
struct esp_hdr *esp = NULL;
- uint8_t *padding, *new_ip, nlp;
+ uint8_t *padding = NULL, *new_ip, nlp;
struct rte_crypto_sym_op *sym_cop;
int32_t i;
uint16_t pad_payload_len, pad_len, ip_hdr_len;
RTE_ASSERT(m != NULL);
RTE_ASSERT(sa != NULL);
- RTE_ASSERT(cop != NULL);
ip_hdr_len = 0;
@@ -283,12 +301,19 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
return -EINVAL;
}
- padding = (uint8_t *)rte_pktmbuf_append(m, pad_len + sa->digest_len);
- if (unlikely(padding == NULL)) {
- RTE_LOG(ERR, IPSEC_ESP, "not enough mbuf trailing space\n");
- return -ENOSPC;
+ /* Add trailer padding if it is not constructed by HW */
+ if (sa->type != RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
+ (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO &&
+ !(sa->ol_flags & RTE_SECURITY_TX_HW_TRAILER_OFFLOAD))) {
+ padding = (uint8_t *)rte_pktmbuf_append(m, pad_len +
+ sa->digest_len);
+ if (unlikely(padding == NULL)) {
+ RTE_LOG(ERR, IPSEC_ESP,
+ "not enough mbuf trailing space\n");
+ return -ENOSPC;
+ }
+ rte_prefetch0(padding);
}
- rte_prefetch0(padding);
switch (sa->flags) {
case IP4_TUNNEL:
@@ -306,14 +331,15 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
sizeof(struct esp_hdr) + sa->iv_len);
memmove(new_ip, ip4, ip_hdr_len);
esp = (struct esp_hdr *)(new_ip + ip_hdr_len);
+ ip4 = (struct ip *)new_ip;
if (likely(ip4->ip_v == IPVERSION)) {
- ip4 = (struct ip *)new_ip;
ip4->ip_p = IPPROTO_ESP;
ip4->ip_len = htons(rte_pktmbuf_data_len(m));
} else {
ip6 = (struct ip6_hdr *)new_ip;
ip6->ip6_nxt = IPPROTO_ESP;
- ip6->ip6_plen = htons(rte_pktmbuf_data_len(m));
+ ip6->ip6_plen = htons(rte_pktmbuf_data_len(m) -
+ sizeof(struct ip6_hdr));
}
}
@@ -321,15 +347,46 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
esp->spi = rte_cpu_to_be_32(sa->spi);
esp->seq = rte_cpu_to_be_32((uint32_t)sa->seq);
+ /* set iv */
uint64_t *iv = (uint64_t *)(esp + 1);
+ if (sa->aead_algo == RTE_CRYPTO_AEAD_AES_GCM) {
+ *iv = rte_cpu_to_be_64(sa->seq);
+ } else {
+ switch (sa->cipher_algo) {
+ case RTE_CRYPTO_CIPHER_NULL:
+ case RTE_CRYPTO_CIPHER_AES_CBC:
+ memset(iv, 0, sa->iv_len);
+ break;
+ case RTE_CRYPTO_CIPHER_AES_CTR:
+ *iv = rte_cpu_to_be_64(sa->seq);
+ break;
+ default:
+ RTE_LOG(ERR, IPSEC_ESP,
+ "unsupported cipher algorithm %u\n",
+ sa->cipher_algo);
+ return -EINVAL;
+ }
+ }
+ if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
+ if (sa->ol_flags & RTE_SECURITY_TX_HW_TRAILER_OFFLOAD) {
+ /* Set the inner esp next protocol for HW trailer */
+ m->inner_esp_next_proto = nlp;
+ m->packet_type |= RTE_PTYPE_TUNNEL_ESP;
+ } else {
+ padding[pad_len - 2] = pad_len - 2;
+ padding[pad_len - 1] = nlp;
+ }
+ goto done;
+ }
+
+ RTE_ASSERT(cop != NULL);
sym_cop = get_sym_cop(cop);
sym_cop->m_src = m;
if (sa->aead_algo == RTE_CRYPTO_AEAD_AES_GCM) {
uint8_t *aad;
- *iv = sa->seq;
sym_cop->aead.data.offset = ip_hdr_len +
sizeof(struct esp_hdr) + sa->iv_len;
sym_cop->aead.data.length = pad_payload_len;
@@ -342,30 +399,28 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
struct cnt_blk *icb = get_cnt_blk(m);
icb->salt = sa->salt;
- icb->iv = sa->seq;
+ icb->iv = rte_cpu_to_be_64(sa->seq);
icb->cnt = rte_cpu_to_be_32(1);
aad = get_aad(m);
memcpy(aad, esp, 8);
sym_cop->aead.aad.data = aad;
- sym_cop->aead.aad.phys_addr = rte_pktmbuf_mtophys_offset(m,
+ sym_cop->aead.aad.phys_addr = rte_pktmbuf_iova_offset(m,
aad - rte_pktmbuf_mtod(m, uint8_t *));
sym_cop->aead.digest.data = rte_pktmbuf_mtod_offset(m, uint8_t *,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
- sym_cop->aead.digest.phys_addr = rte_pktmbuf_mtophys_offset(m,
+ sym_cop->aead.digest.phys_addr = rte_pktmbuf_iova_offset(m,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
} else {
switch (sa->cipher_algo) {
case RTE_CRYPTO_CIPHER_NULL:
case RTE_CRYPTO_CIPHER_AES_CBC:
- memset(iv, 0, sa->iv_len);
sym_cop->cipher.data.offset = ip_hdr_len +
sizeof(struct esp_hdr);
sym_cop->cipher.data.length = pad_payload_len + sa->iv_len;
break;
case RTE_CRYPTO_CIPHER_AES_CTR:
- *iv = sa->seq;
sym_cop->cipher.data.offset = ip_hdr_len +
sizeof(struct esp_hdr) + sa->iv_len;
sym_cop->cipher.data.length = pad_payload_len;
@@ -384,7 +439,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
struct cnt_blk *icb = get_cnt_blk(m);
icb->salt = sa->salt;
- icb->iv = sa->seq;
+ icb->iv = rte_cpu_to_be_64(sa->seq);
icb->cnt = rte_cpu_to_be_32(1);
switch (sa->auth_algo) {
@@ -403,25 +458,30 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
sym_cop->auth.digest.data = rte_pktmbuf_mtod_offset(m, uint8_t *,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
- sym_cop->auth.digest.phys_addr = rte_pktmbuf_mtophys_offset(m,
+ sym_cop->auth.digest.phys_addr = rte_pktmbuf_iova_offset(m,
rte_pktmbuf_pkt_len(m) - sa->digest_len);
}
+done:
return 0;
}
int
-esp_outbound_post(struct rte_mbuf *m __rte_unused,
- struct ipsec_sa *sa __rte_unused,
- struct rte_crypto_op *cop)
+esp_outbound_post(struct rte_mbuf *m,
+ struct ipsec_sa *sa,
+ struct rte_crypto_op *cop)
{
RTE_ASSERT(m != NULL);
RTE_ASSERT(sa != NULL);
- RTE_ASSERT(cop != NULL);
- if (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS) {
- RTE_LOG(ERR, IPSEC_ESP, "Failed crypto op\n");
- return -1;
+ if (sa->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO) {
+ m->ol_flags |= PKT_TX_SEC_OFFLOAD;
+ } else {
+ RTE_ASSERT(cop != NULL);
+ if (cop->status != RTE_CRYPTO_OP_STATUS_SUCCESS) {
+ RTE_LOG(ERR, IPSEC_ESP, "Failed crypto op\n");
+ return -1;
+ }
}
return 0;