diff options
Diffstat (limited to 'src/spdk/dpdk/examples/ipsec-secgw/ipsec.h')
| -rw-r--r-- | src/spdk/dpdk/examples/ipsec-secgw/ipsec.h | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/src/spdk/dpdk/examples/ipsec-secgw/ipsec.h b/src/spdk/dpdk/examples/ipsec-secgw/ipsec.h new file mode 100644 index 00000000..c998c807 --- /dev/null +++ b/src/spdk/dpdk/examples/ipsec-secgw/ipsec.h @@ -0,0 +1,242 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2017 Intel Corporation + */ + +#ifndef __IPSEC_H__ +#define __IPSEC_H__ + +#include <stdint.h> + +#include <rte_byteorder.h> +#include <rte_crypto.h> +#include <rte_security.h> +#include <rte_flow.h> + +#define RTE_LOGTYPE_IPSEC RTE_LOGTYPE_USER1 +#define RTE_LOGTYPE_IPSEC_ESP RTE_LOGTYPE_USER2 +#define RTE_LOGTYPE_IPSEC_IPIP RTE_LOGTYPE_USER3 + +#define MAX_PKT_BURST 32 +#define MAX_INFLIGHT 128 +#define MAX_QP_PER_LCORE 256 + +#define MAX_DIGEST_SIZE 32 /* Bytes -- 256 bits */ + +#define IPSEC_OFFLOAD_ESN_SOFTLIMIT 0xffffff00 + +#define IV_OFFSET (sizeof(struct rte_crypto_op) + \ + sizeof(struct rte_crypto_sym_op)) + +#define uint32_t_to_char(ip, a, b, c, d) do {\ + *a = (uint8_t)(ip >> 24 & 0xff);\ + *b = (uint8_t)(ip >> 16 & 0xff);\ + *c = (uint8_t)(ip >> 8 & 0xff);\ + *d = (uint8_t)(ip & 0xff);\ + } while (0) + +#define DEFAULT_MAX_CATEGORIES 1 + +#define IPSEC_SA_MAX_ENTRIES (128) /* must be power of 2, max 2 power 30 */ +#define SPI2IDX(spi) (spi & (IPSEC_SA_MAX_ENTRIES - 1)) +#define INVALID_SPI (0) + +#define DISCARD (0x80000000) +#define BYPASS (0x40000000) +#define PROTECT_MASK (0x3fffffff) +#define PROTECT(sa_idx) (SPI2IDX(sa_idx) & PROTECT_MASK) /* SA idx 30 bits */ + +#define IPSEC_XFORM_MAX 2 + +#define IP6_VERSION (6) + +struct rte_crypto_xform; +struct ipsec_xform; +struct rte_mbuf; + +struct ipsec_sa; + +typedef int32_t (*ipsec_xform_fn)(struct rte_mbuf *m, struct ipsec_sa *sa, + struct rte_crypto_op *cop); + +struct ip_addr { + union { + uint32_t ip4; + union { + uint64_t ip6[2]; + uint8_t ip6_b[16]; + } ip6; + } ip; +}; + +#define MAX_KEY_SIZE 32 + +struct ipsec_sa { + uint32_t spi; + uint32_t cdev_id_qp; + uint64_t seq; + uint32_t salt; + union { + struct rte_cryptodev_sym_session *crypto_session; + struct rte_security_session *sec_session; + }; + enum rte_crypto_cipher_algorithm cipher_algo; + enum rte_crypto_auth_algorithm auth_algo; + enum rte_crypto_aead_algorithm aead_algo; + uint16_t digest_len; + uint16_t iv_len; + uint16_t block_size; + uint16_t flags; +#define IP4_TUNNEL (1 << 0) +#define IP6_TUNNEL (1 << 1) +#define TRANSPORT (1 << 2) + struct ip_addr src; + struct ip_addr dst; + uint8_t cipher_key[MAX_KEY_SIZE]; + uint16_t cipher_key_len; + uint8_t auth_key[MAX_KEY_SIZE]; + uint16_t auth_key_len; + uint16_t aad_len; + union { + struct rte_crypto_sym_xform *xforms; + struct rte_security_ipsec_xform *sec_xform; + }; + enum rte_security_session_action_type type; + enum rte_security_ipsec_sa_direction direction; + uint16_t portid; + struct rte_security_ctx *security_ctx; + uint32_t ol_flags; + +#define MAX_RTE_FLOW_PATTERN (4) +#define MAX_RTE_FLOW_ACTIONS (3) + struct rte_flow_item pattern[MAX_RTE_FLOW_PATTERN]; + struct rte_flow_action action[MAX_RTE_FLOW_ACTIONS]; + struct rte_flow_attr attr; + union { + struct rte_flow_item_ipv4 ipv4_spec; + struct rte_flow_item_ipv6 ipv6_spec; + }; + struct rte_flow_item_esp esp_spec; + struct rte_flow *flow; + struct rte_security_session_conf sess_conf; +} __rte_cache_aligned; + +struct ipsec_mbuf_metadata { + struct ipsec_sa *sa; + struct rte_crypto_op cop; + struct rte_crypto_sym_op sym_cop; + uint8_t buf[32]; +} __rte_cache_aligned; + +struct cdev_qp { + uint16_t id; + uint16_t qp; + uint16_t in_flight; + uint16_t len; + struct rte_crypto_op *buf[MAX_PKT_BURST] __rte_aligned(sizeof(void *)); +}; + +struct ipsec_ctx { + struct rte_hash *cdev_map; + struct sp_ctx *sp4_ctx; + struct sp_ctx *sp6_ctx; + struct sa_ctx *sa_ctx; + uint16_t nb_qps; + uint16_t last_qp; + struct cdev_qp tbl[MAX_QP_PER_LCORE]; + struct rte_mempool *session_pool; + struct rte_mbuf *ol_pkts[MAX_PKT_BURST] __rte_aligned(sizeof(void *)); + uint16_t ol_pkts_cnt; +}; + +struct cdev_key { + uint16_t lcore_id; + uint8_t cipher_algo; + uint8_t auth_algo; + uint8_t aead_algo; +}; + +struct socket_ctx { + struct sa_ctx *sa_in; + struct sa_ctx *sa_out; + struct sp_ctx *sp_ip4_in; + struct sp_ctx *sp_ip4_out; + struct sp_ctx *sp_ip6_in; + struct sp_ctx *sp_ip6_out; + struct rt_ctx *rt_ip4; + struct rt_ctx *rt_ip6; + struct rte_mempool *mbuf_pool; + struct rte_mempool *session_pool; +}; + +struct cnt_blk { + uint32_t salt; + uint64_t iv; + uint32_t cnt; +} __attribute__((packed)); + +uint16_t +ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], + uint16_t nb_pkts, uint16_t len); + +uint16_t +ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[], + uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len); + +static inline uint16_t +ipsec_metadata_size(void) +{ + return sizeof(struct ipsec_mbuf_metadata); +} + +static inline struct ipsec_mbuf_metadata * +get_priv(struct rte_mbuf *m) +{ + return rte_mbuf_to_priv(m); +} + +static inline void * +get_cnt_blk(struct rte_mbuf *m) +{ + struct ipsec_mbuf_metadata *priv = get_priv(m); + + return &priv->buf[0]; +} + +static inline void * +get_aad(struct rte_mbuf *m) +{ + struct ipsec_mbuf_metadata *priv = get_priv(m); + + return &priv->buf[16]; +} + +static inline void * +get_sym_cop(struct rte_crypto_op *cop) +{ + return (cop + 1); +} + +int +inbound_sa_check(struct sa_ctx *sa_ctx, struct rte_mbuf *m, uint32_t sa_idx); + +void +inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[], + struct ipsec_sa *sa[], uint16_t nb_pkts); + +void +outbound_sa_lookup(struct sa_ctx *sa_ctx, uint32_t sa_idx[], + struct ipsec_sa *sa[], uint16_t nb_pkts); + +void +sp4_init(struct socket_ctx *ctx, int32_t socket_id); + +void +sp6_init(struct socket_ctx *ctx, int32_t socket_id); + +void +sa_init(struct socket_ctx *ctx, int32_t socket_id); + +void +rt_init(struct socket_ctx *ctx, int32_t socket_id); + +#endif /* __IPSEC_H__ */ |