*/
#include <rte_cryptodev.h>
+#include <rte_esp.h>
+#include <rte_ethdev.h>
+#include <rte_ip.h>
#include <rte_malloc.h>
#include <rte_security.h>
#include <rte_security_driver.h>
+#include <rte_udp.h>
#include "otx2_cryptodev.h"
#include "otx2_cryptodev_capabilities.h"
+#include "otx2_cryptodev_hw_access.h"
+#include "otx2_cryptodev_ops.h"
#include "otx2_cryptodev_sec.h"
#include "otx2_security.h"
+static int
+ipsec_lp_len_precalc(struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *xform,
+ struct otx2_sec_session_ipsec_lp *lp)
+{
+ struct rte_crypto_sym_xform *cipher_xform, *auth_xform;
+
+ lp->partial_len = sizeof(struct rte_ipv4_hdr);
+
+ if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_ESP) {
+ lp->partial_len += sizeof(struct rte_esp_hdr);
+ lp->roundup_len = sizeof(struct rte_esp_tail);
+ } else if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_AH) {
+ lp->partial_len += OTX2_SEC_AH_HDR_LEN;
+ } else {
+ return -EINVAL;
+ }
+
+ if (ipsec->options.udp_encap)
+ lp->partial_len += sizeof(struct rte_udp_hdr);
+
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+ if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+ lp->partial_len += OTX2_SEC_AES_GCM_IV_LEN;
+ lp->partial_len += OTX2_SEC_AES_GCM_MAC_LEN;
+ lp->roundup_byte = OTX2_SEC_AES_GCM_ROUNDUP_BYTE_LEN;
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+ }
+
+ if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
+ cipher_xform = xform;
+ auth_xform = xform->next;
+ } else if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
+ auth_xform = xform;
+ cipher_xform = xform->next;
+ } else {
+ return -EINVAL;
+ }
+
+ if (cipher_xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
+ lp->partial_len += OTX2_SEC_AES_CBC_IV_LEN;
+ lp->roundup_byte = OTX2_SEC_AES_CBC_ROUNDUP_BYTE_LEN;
+ } else {
+ return -EINVAL;
+ }
+
+ if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
+ lp->partial_len += OTX2_SEC_SHA1_HMAC_LEN;
+ else
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+otx2_cpt_enq_sa_write(struct otx2_sec_session_ipsec_lp *lp,
+ struct otx2_cpt_qp *qptr, uint8_t opcode)
+{
+ uint64_t lmt_status, time_out;
+ void *lmtline = qptr->lmtline;
+ struct otx2_cpt_inst_s inst;
+ struct otx2_cpt_res *res;
+ uint64_t *mdata;
+ int ret = 0;
+
+ if (unlikely(rte_mempool_get(qptr->meta_info.pool,
+ (void **)&mdata) < 0))
+ return -ENOMEM;
+
+ res = (struct otx2_cpt_res *)RTE_PTR_ALIGN(mdata, 16);
+ res->compcode = CPT_9X_COMP_E_NOTDONE;
+
+ inst.opcode = opcode | (lp->ctx_len << 8);
+ inst.param1 = 0;
+ inst.param2 = 0;
+ inst.dlen = lp->ctx_len << 3;
+ inst.dptr = rte_mempool_virt2iova(lp);
+ inst.rptr = 0;
+ inst.cptr = rte_mempool_virt2iova(lp);
+ inst.egrp = OTX2_CPT_EGRP_SE;
+
+ inst.u64[0] = 0;
+ inst.u64[2] = 0;
+ inst.u64[3] = 0;
+ inst.res_addr = rte_mempool_virt2iova(res);
+
+ rte_cio_wmb();
+
+ do {
+ /* Copy CPT command to LMTLINE */
+ otx2_lmt_mov(lmtline, &inst, 2);
+ lmt_status = otx2_lmt_submit(qptr->lf_nq_reg);
+ } while (lmt_status == 0);
+
+ time_out = rte_get_timer_cycles() +
+ DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
+
+ while (res->compcode == CPT_9X_COMP_E_NOTDONE) {
+ if (rte_get_timer_cycles() > time_out) {
+ rte_mempool_put(qptr->meta_info.pool, mdata);
+ otx2_err("Request timed out");
+ return -ETIMEDOUT;
+ }
+ rte_cio_rmb();
+ }
+
+ if (unlikely(res->compcode != CPT_9X_COMP_E_GOOD)) {
+ ret = res->compcode;
+ switch (ret) {
+ case CPT_9X_COMP_E_INSTERR:
+ otx2_err("Request failed with instruction error");
+ break;
+ case CPT_9X_COMP_E_FAULT:
+ otx2_err("Request failed with DMA fault");
+ break;
+ case CPT_9X_COMP_E_HWERR:
+ otx2_err("Request failed with hardware error");
+ break;
+ default:
+ otx2_err("Request failed with unknown hardware "
+ "completion code : 0x%x", ret);
+ }
+ goto mempool_put;
+ }
+
+ if (unlikely(res->uc_compcode != OTX2_IPSEC_PO_CC_SUCCESS)) {
+ ret = res->uc_compcode;
+ switch (ret) {
+ case OTX2_IPSEC_PO_CC_AUTH_UNSUPPORTED:
+ otx2_err("Invalid auth type");
+ break;
+ case OTX2_IPSEC_PO_CC_ENCRYPT_UNSUPPORTED:
+ otx2_err("Invalid encrypt type");
+ break;
+ default:
+ otx2_err("Request failed with unknown microcode "
+ "completion code : 0x%x", ret);
+ }
+ }
+
+mempool_put:
+ rte_mempool_put(qptr->meta_info.pool, mdata);
+ return ret;
+}
+
+static void
+set_session_misc_attributes(struct otx2_sec_session_ipsec_lp *sess,
+ struct rte_crypto_sym_xform *crypto_xform,
+ struct rte_crypto_sym_xform *auth_xform,
+ struct rte_crypto_sym_xform *cipher_xform)
+{
+ if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+ sess->iv_offset = crypto_xform->aead.iv.offset;
+ sess->iv_length = crypto_xform->aead.iv.length;
+ sess->aad_length = crypto_xform->aead.aad_length;
+ sess->mac_len = crypto_xform->aead.digest_length;
+ } else {
+ sess->iv_offset = cipher_xform->cipher.iv.offset;
+ sess->iv_length = cipher_xform->cipher.iv.length;
+ sess->auth_iv_offset = auth_xform->auth.iv.offset;
+ sess->auth_iv_length = auth_xform->auth.iv.length;
+ sess->mac_len = auth_xform->auth.digest_length;
+ }
+
+ sess->ucmd_param1 = OTX2_IPSEC_PO_PER_PKT_IV;
+ sess->ucmd_param2 = 0;
+}
+
+static int
+crypto_sec_ipsec_outb_session_create(struct rte_cryptodev *crypto_dev,
+ struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *crypto_xform,
+ struct rte_security_session *sec_sess)
+{
+ struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
+ const uint8_t *cipher_key, *auth_key;
+ struct otx2_sec_session_ipsec_lp *lp;
+ struct otx2_ipsec_po_sa_ctl *ctl;
+ int cipher_key_len, auth_key_len;
+ struct otx2_ipsec_po_out_sa *sa;
+ struct otx2_sec_session *sess;
+ struct otx2_cpt_inst_s inst;
+ struct rte_ipv4_hdr *ip;
+ int ret;
+
+ sess = get_sec_session_private_data(sec_sess);
+ lp = &sess->ipsec.lp;
+
+ sa = &lp->out_sa;
+ ctl = &sa->ctl;
+ if (ctl->valid) {
+ otx2_err("SA already registered");
+ return -EINVAL;
+ }
+
+ memset(sa, 0, sizeof(struct otx2_ipsec_po_out_sa));
+
+ /* Initialize lookaside ipsec private data */
+ lp->ip_id = 0;
+ lp->seq_lo = 1;
+ lp->seq_hi = 0;
+
+ ret = ipsec_po_sa_ctl_set(ipsec, crypto_xform, ctl);
+ if (ret)
+ return ret;
+
+ ret = ipsec_lp_len_precalc(ipsec, crypto_xform, lp);
+ if (ret)
+ return ret;
+
+ memcpy(sa->iv.gcm.nonce, &ipsec->salt, 4);
+
+ if (ipsec->options.udp_encap) {
+ sa->udp_src = 4500;
+ sa->udp_dst = 4500;
+ }
+
+ if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
+ /* Start ip id from 1 */
+ lp->ip_id = 1;
+
+ if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4) {
+ ip = &sa->template.ipv4_hdr;
+ ip->version_ihl = RTE_IPV4_VHL_DEF;
+ ip->next_proto_id = IPPROTO_ESP;
+ ip->time_to_live = ipsec->tunnel.ipv4.ttl;
+ ip->type_of_service |= (ipsec->tunnel.ipv4.dscp << 2);
+ if (ipsec->tunnel.ipv4.df)
+ ip->fragment_offset = BIT(14);
+ memcpy(&ip->src_addr, &ipsec->tunnel.ipv4.src_ip,
+ sizeof(struct in_addr));
+ memcpy(&ip->dst_addr, &ipsec->tunnel.ipv4.dst_ip,
+ sizeof(struct in_addr));
+ } else {
+ return -EINVAL;
+ }
+ } else {
+ return -EINVAL;
+ }
+
+ cipher_xform = crypto_xform;
+ auth_xform = crypto_xform->next;
+
+ cipher_key_len = 0;
+ auth_key_len = 0;
+
+ if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+ cipher_key = crypto_xform->aead.key.data;
+ cipher_key_len = crypto_xform->aead.key.length;
+
+ lp->ctx_len = sizeof(struct otx2_ipsec_po_out_sa);
+ lp->ctx_len >>= 3;
+ RTE_ASSERT(lp->ctx_len == OTX2_IPSEC_PO_AES_GCM_OUTB_CTX_LEN);
+ } else {
+ cipher_key = cipher_xform->cipher.key.data;
+ cipher_key_len = cipher_xform->cipher.key.length;
+ auth_key = auth_xform->auth.key.data;
+ auth_key_len = auth_xform->auth.key.length;
+
+ /* TODO: check the ctx len for supporting ALGO */
+ lp->ctx_len = sizeof(struct otx2_ipsec_po_out_sa) >> 3;
+ RTE_ASSERT(lp->ctx_len == OTX2_IPSEC_PO_MAX_OUTB_CTX_LEN);
+ }
+
+ if (cipher_key_len != 0)
+ memcpy(sa->cipher_key, cipher_key, cipher_key_len);
+ else
+ return -EINVAL;
+
+ /* Use OPAD & IPAD */
+ RTE_SET_USED(auth_key);
+ RTE_SET_USED(auth_key_len);
+
+ inst.u64[7] = 0;
+ inst.egrp = OTX2_CPT_EGRP_SE;
+ inst.cptr = rte_mempool_virt2iova(sa);
+
+ lp->ucmd_w3 = inst.u64[7];
+ lp->ucmd_opcode = (lp->ctx_len << 8) |
+ (OTX2_IPSEC_PO_PROCESS_IPSEC_OUTB);
+
+ set_session_misc_attributes(lp, crypto_xform,
+ auth_xform, cipher_xform);
+
+ return otx2_cpt_enq_sa_write(lp, crypto_dev->data->queue_pairs[0],
+ OTX2_IPSEC_PO_WRITE_IPSEC_OUTB);
+}
+
+static int
+crypto_sec_ipsec_inb_session_create(struct rte_cryptodev *crypto_dev,
+ struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *crypto_xform,
+ struct rte_security_session *sec_sess)
+{
+ struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
+ struct otx2_sec_session_ipsec_lp *lp;
+ struct otx2_ipsec_po_sa_ctl *ctl;
+ const uint8_t *cipher_key, *auth_key;
+ int cipher_key_len, auth_key_len;
+ struct otx2_ipsec_po_in_sa *sa;
+ struct otx2_sec_session *sess;
+ struct otx2_cpt_inst_s inst;
+ int ret;
+
+ sess = get_sec_session_private_data(sec_sess);
+ lp = &sess->ipsec.lp;
+
+ sa = &lp->in_sa;
+ ctl = &sa->ctl;
+
+ if (ctl->valid) {
+ otx2_err("SA already registered");
+ return -EINVAL;
+ }
+
+ memset(sa, 0, sizeof(struct otx2_ipsec_po_in_sa));
+
+ ret = ipsec_po_sa_ctl_set(ipsec, crypto_xform, ctl);
+ if (ret)
+ return ret;
+
+ auth_xform = crypto_xform;
+ cipher_xform = crypto_xform->next;
+
+ cipher_key_len = 0;
+ auth_key_len = 0;
+
+ if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+ if (crypto_xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM)
+ memcpy(sa->iv.gcm.nonce, &ipsec->salt, 4);
+ cipher_key = crypto_xform->aead.key.data;
+ cipher_key_len = crypto_xform->aead.key.length;
+
+ lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
+ aes_gcm.hmac_key[0]) >> 3;
+ RTE_ASSERT(lp->ctx_len == OTX2_IPSEC_PO_AES_GCM_INB_CTX_LEN);
+ } else {
+ cipher_key = cipher_xform->cipher.key.data;
+ cipher_key_len = cipher_xform->cipher.key.length;
+ auth_key = auth_xform->auth.key.data;
+ auth_key_len = auth_xform->auth.key.length;
+
+ /* TODO: check the ctx len for supporting ALGO */
+ lp->ctx_len = sizeof(struct otx2_ipsec_po_in_sa) >> 2;
+ RTE_ASSERT(lp->ctx_len == OTX2_IPSEC_PO_MAX_INB_CTX_LEN);
+ }
+
+ if (cipher_key_len != 0)
+ memcpy(sa->cipher_key, cipher_key, cipher_key_len);
+ else
+ return -EINVAL;
+
+ /* Use OPAD & IPAD */
+ RTE_SET_USED(auth_key);
+ RTE_SET_USED(auth_key_len);
+
+ inst.u64[7] = 0;
+ inst.egrp = OTX2_CPT_EGRP_SE;
+ inst.cptr = rte_mempool_virt2iova(sa);
+
+ lp->ucmd_w3 = inst.u64[7];
+ lp->ucmd_opcode = (lp->ctx_len << 8) |
+ (OTX2_IPSEC_PO_PROCESS_IPSEC_INB);
+
+ set_session_misc_attributes(lp, crypto_xform,
+ auth_xform, cipher_xform);
+
+ return otx2_cpt_enq_sa_write(lp, crypto_dev->data->queue_pairs[0],
+ OTX2_IPSEC_PO_WRITE_IPSEC_INB);
+}
+
+static int
+crypto_sec_ipsec_session_create(struct rte_cryptodev *crypto_dev,
+ struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *crypto_xform,
+ struct rte_security_session *sess)
+{
+ int ret;
+
+ if (crypto_dev->data->queue_pairs[0] == NULL) {
+ otx2_err("Setup cpt queue pair before creating sec session");
+ return -EPERM;
+ }
+
+ ret = ipsec_po_xform_verify(ipsec, crypto_xform);
+ if (ret)
+ return ret;
+
+ if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS)
+ return crypto_sec_ipsec_inb_session_create(crypto_dev, ipsec,
+ crypto_xform, sess);
+ else
+ return crypto_sec_ipsec_outb_session_create(crypto_dev, ipsec,
+ crypto_xform, sess);
+}
+
+static int
+otx2_crypto_sec_session_create(void *device,
+ struct rte_security_session_conf *conf,
+ struct rte_security_session *sess,
+ struct rte_mempool *mempool)
+{
+ struct otx2_sec_session *priv;
+ int ret;
+
+ if (conf->action_type != RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL)
+ return -ENOTSUP;
+
+ if (rte_mempool_get(mempool, (void **)&priv)) {
+ otx2_err("Could not allocate security session private data");
+ return -ENOMEM;
+ }
+
+ set_sec_session_private_data(sess, priv);
+
+ priv->userdata = conf->userdata;
+
+ if (conf->protocol == RTE_SECURITY_PROTOCOL_IPSEC)
+ ret = crypto_sec_ipsec_session_create(device, &conf->ipsec,
+ conf->crypto_xform,
+ sess);
+ else
+ ret = -ENOTSUP;
+
+ if (ret)
+ goto mempool_put;
+
+ return 0;
+
+mempool_put:
+ rte_mempool_put(mempool, priv);
+ set_sec_session_private_data(sess, NULL);
+ return ret;
+}
+
+static int
+otx2_crypto_sec_session_destroy(void *device __rte_unused,
+ struct rte_security_session *sess)
+{
+ struct otx2_sec_session *priv;
+ struct rte_mempool *sess_mp;
+
+ priv = get_sec_session_private_data(sess);
+
+ if (priv == NULL)
+ return 0;
+
+ sess_mp = rte_mempool_from_obj(priv);
+
+ set_sec_session_private_data(sess, NULL);
+ rte_mempool_put(sess_mp, priv);
+
+ return 0;
+}
+
static unsigned int
otx2_crypto_sec_session_get_size(void *device __rte_unused)
{
}
static struct rte_security_ops otx2_crypto_sec_ops = {
- .session_create = NULL,
- .session_destroy = NULL,
+ .session_create = otx2_crypto_sec_session_create,
+ .session_destroy = otx2_crypto_sec_session_destroy,
.session_get_size = otx2_crypto_sec_session_get_size,
.set_pkt_metadata = otx2_crypto_sec_set_pkt_mdata,
.get_userdata = otx2_crypto_sec_get_userdata,
#include <rte_ip.h>
#include <rte_security.h>
+#define OTX2_IPSEC_PO_AES_GCM_INB_CTX_LEN 0x09
+#define OTX2_IPSEC_PO_AES_GCM_OUTB_CTX_LEN 0x28
+
+#define OTX2_IPSEC_PO_MAX_INB_CTX_LEN 0x22
+#define OTX2_IPSEC_PO_MAX_OUTB_CTX_LEN 0x38
+
+#define OTX2_IPSEC_PO_PER_PKT_IV BIT(11)
+
+#define OTX2_IPSEC_PO_WRITE_IPSEC_OUTB 0x20
+#define OTX2_IPSEC_PO_WRITE_IPSEC_INB 0x21
+#define OTX2_IPSEC_PO_PROCESS_IPSEC_OUTB 0x23
+#define OTX2_IPSEC_PO_PROCESS_IPSEC_INB 0x24
+
+enum otx2_ipsec_po_comp_e {
+ OTX2_IPSEC_PO_CC_SUCCESS = 0x00,
+ OTX2_IPSEC_PO_CC_AUTH_UNSUPPORTED = 0xB0,
+ OTX2_IPSEC_PO_CC_ENCRYPT_UNSUPPORTED = 0xB1,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_DIRECTION_INBOUND = 0,
+ OTX2_IPSEC_PO_SA_DIRECTION_OUTBOUND = 1,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_IP_VERSION_4 = 0,
+ OTX2_IPSEC_PO_SA_IP_VERSION_6 = 1,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_MODE_TRANSPORT = 0,
+ OTX2_IPSEC_PO_SA_MODE_TUNNEL = 1,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_PROTOCOL_AH = 0,
+ OTX2_IPSEC_PO_SA_PROTOCOL_ESP = 1,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_AES_KEY_LEN_128 = 1,
+ OTX2_IPSEC_PO_SA_AES_KEY_LEN_192 = 2,
+ OTX2_IPSEC_PO_SA_AES_KEY_LEN_256 = 3,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_ENC_NULL = 0,
+ OTX2_IPSEC_PO_SA_ENC_DES_CBC = 1,
+ OTX2_IPSEC_PO_SA_ENC_3DES_CBC = 2,
+ OTX2_IPSEC_PO_SA_ENC_AES_CBC = 3,
+ OTX2_IPSEC_PO_SA_ENC_AES_CTR = 4,
+ OTX2_IPSEC_PO_SA_ENC_AES_GCM = 5,
+ OTX2_IPSEC_PO_SA_ENC_AES_CCM = 6,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_AUTH_NULL = 0,
+ OTX2_IPSEC_PO_SA_AUTH_MD5 = 1,
+ OTX2_IPSEC_PO_SA_AUTH_SHA1 = 2,
+ OTX2_IPSEC_PO_SA_AUTH_SHA2_224 = 3,
+ OTX2_IPSEC_PO_SA_AUTH_SHA2_256 = 4,
+ OTX2_IPSEC_PO_SA_AUTH_SHA2_384 = 5,
+ OTX2_IPSEC_PO_SA_AUTH_SHA2_512 = 6,
+ OTX2_IPSEC_PO_SA_AUTH_AES_GMAC = 7,
+ OTX2_IPSEC_PO_SA_AUTH_AES_XCBC_128 = 8,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_FRAG_POST = 0,
+ OTX2_IPSEC_PO_SA_FRAG_PRE = 1,
+};
+
+enum {
+ OTX2_IPSEC_PO_SA_ENCAP_NONE = 0,
+ OTX2_IPSEC_PO_SA_ENCAP_UDP = 1,
+};
+
union otx2_ipsec_po_bit_perfect_iv {
uint8_t aes_iv[16];
uint8_t des_iv[8];
uint16_t udp_dst;
};
+static inline int
+ipsec_po_xform_cipher_verify(struct rte_crypto_sym_xform *xform)
+{
+ if (xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
+ switch (xform->cipher.key.length) {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ return -ENOTSUP;
+ }
+ return 0;
+ }
+
+ return -ENOTSUP;
+}
+
+static inline int
+ipsec_po_xform_auth_verify(struct rte_crypto_sym_xform *xform)
+{
+ uint16_t keylen = xform->auth.key.length;
+
+ if (xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC) {
+ if (keylen >= 20 && keylen <= 64)
+ return 0;
+ }
+
+ return -ENOTSUP;
+}
+
+static inline int
+ipsec_po_xform_aead_verify(struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *xform)
+{
+ if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS &&
+ xform->aead.op != RTE_CRYPTO_AEAD_OP_ENCRYPT)
+ return -EINVAL;
+
+ if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS &&
+ xform->aead.op != RTE_CRYPTO_AEAD_OP_DECRYPT)
+ return -EINVAL;
+
+ if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+ switch (xform->aead.key.length) {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+ }
+
+ return -ENOTSUP;
+}
+
+static inline int
+ipsec_po_xform_verify(struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *xform)
+{
+ struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
+ int ret;
+
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
+ return ipsec_po_xform_aead_verify(ipsec, xform);
+
+ if (xform->next == NULL)
+ return -EINVAL;
+
+ if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
+ /* Ingress */
+ if (xform->type != RTE_CRYPTO_SYM_XFORM_AUTH ||
+ xform->next->type != RTE_CRYPTO_SYM_XFORM_CIPHER)
+ return -EINVAL;
+ auth_xform = xform;
+ cipher_xform = xform->next;
+ } else {
+ /* Egress */
+ if (xform->type != RTE_CRYPTO_SYM_XFORM_CIPHER ||
+ xform->next->type != RTE_CRYPTO_SYM_XFORM_AUTH)
+ return -EINVAL;
+ cipher_xform = xform;
+ auth_xform = xform->next;
+ }
+
+ ret = ipsec_po_xform_cipher_verify(cipher_xform);
+ if (ret)
+ return ret;
+
+ ret = ipsec_po_xform_auth_verify(auth_xform);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static inline int
+ipsec_po_sa_ctl_set(struct rte_security_ipsec_xform *ipsec,
+ struct rte_crypto_sym_xform *xform,
+ struct otx2_ipsec_po_sa_ctl *ctl)
+{
+ struct rte_crypto_sym_xform *cipher_xform, *auth_xform;
+ int aes_key_len;
+
+ if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
+ ctl->direction = OTX2_IPSEC_PO_SA_DIRECTION_OUTBOUND;
+ cipher_xform = xform;
+ auth_xform = xform->next;
+ } else if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
+ ctl->direction = OTX2_IPSEC_PO_SA_DIRECTION_INBOUND;
+ auth_xform = xform;
+ cipher_xform = xform->next;
+ } else {
+ return -EINVAL;
+ }
+
+ if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
+ if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4)
+ ctl->outer_ip_ver = OTX2_IPSEC_PO_SA_IP_VERSION_4;
+ else if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV6)
+ ctl->outer_ip_ver = OTX2_IPSEC_PO_SA_IP_VERSION_6;
+ else
+ return -EINVAL;
+ }
+
+ ctl->inner_ip_ver = OTX2_IPSEC_PO_SA_IP_VERSION_4;
+
+ if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TRANSPORT)
+ ctl->ipsec_mode = OTX2_IPSEC_PO_SA_MODE_TRANSPORT;
+ else if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL)
+ ctl->ipsec_mode = OTX2_IPSEC_PO_SA_MODE_TUNNEL;
+ else
+ return -EINVAL;
+
+ if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_AH)
+ ctl->ipsec_proto = OTX2_IPSEC_PO_SA_PROTOCOL_AH;
+ else if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_ESP)
+ ctl->ipsec_proto = OTX2_IPSEC_PO_SA_PROTOCOL_ESP;
+ else
+ return -EINVAL;
+
+ if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
+ if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
+ ctl->enc_type = OTX2_IPSEC_PO_SA_ENC_AES_GCM;
+ aes_key_len = xform->aead.key.length;
+ } else {
+ return -ENOTSUP;
+ }
+ } else if (cipher_xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
+ ctl->enc_type = OTX2_IPSEC_PO_SA_ENC_AES_CCM;
+ aes_key_len = xform->cipher.key.length;
+ } else {
+ return -ENOTSUP;
+ }
+
+
+ switch (aes_key_len) {
+ case 16:
+ ctl->aes_key_len = OTX2_IPSEC_PO_SA_AES_KEY_LEN_128;
+ break;
+ case 24:
+ ctl->aes_key_len = OTX2_IPSEC_PO_SA_AES_KEY_LEN_192;
+ break;
+ case 32:
+ ctl->aes_key_len = OTX2_IPSEC_PO_SA_AES_KEY_LEN_256;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (xform->type != RTE_CRYPTO_SYM_XFORM_AEAD) {
+ switch (auth_xform->auth.algo) {
+ case RTE_CRYPTO_AUTH_NULL:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_NULL;
+ break;
+ case RTE_CRYPTO_AUTH_MD5_HMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_MD5;
+ break;
+ case RTE_CRYPTO_AUTH_SHA1_HMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_SHA1;
+ break;
+ case RTE_CRYPTO_AUTH_SHA224_HMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_SHA2_224;
+ break;
+ case RTE_CRYPTO_AUTH_SHA256_HMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_SHA2_256;
+ break;
+ case RTE_CRYPTO_AUTH_SHA384_HMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_SHA2_384;
+ break;
+ case RTE_CRYPTO_AUTH_SHA512_HMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_SHA2_512;
+ break;
+ case RTE_CRYPTO_AUTH_AES_GMAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_AES_GMAC;
+ break;
+ case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
+ ctl->auth_type = OTX2_IPSEC_PO_SA_AUTH_AES_XCBC_128;
+ break;
+ default:
+ return -ENOTSUP;
+ }
+ }
+
+ if (ipsec->options.esn)
+ ctl->esn_en = 1;
+
+ if (ipsec->options.udp_encap == 1)
+ ctl->encap_type = OTX2_IPSEC_PO_SA_ENCAP_UDP;
+
+ ctl->spi = rte_cpu_to_be_32(ipsec->spi);
+ ctl->valid = 1;
+
+ return 0;
+}
+
#endif /* __OTX2_IPSEC_PO_H__ */
git.droids-corp.org / dpdk.git / commitdiff