1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016-2017 Intel Corporation
10 #include <rte_byteorder.h>
11 #include <rte_crypto.h>
12 #include <rte_security.h>
14 #include <rte_ipsec.h>
16 #define RTE_LOGTYPE_IPSEC RTE_LOGTYPE_USER1
17 #define RTE_LOGTYPE_IPSEC_ESP RTE_LOGTYPE_USER2
18 #define RTE_LOGTYPE_IPSEC_IPIP RTE_LOGTYPE_USER3
20 #define MAX_PKT_BURST 32
21 #define MAX_INFLIGHT 128
22 #define MAX_QP_PER_LCORE 256
24 #define MAX_DIGEST_SIZE 32 /* Bytes -- 256 bits */
26 #define IPSEC_OFFLOAD_ESN_SOFTLIMIT 0xffffff00
28 #define IV_OFFSET (sizeof(struct rte_crypto_op) + \
29 sizeof(struct rte_crypto_sym_op))
31 #define uint32_t_to_char(ip, a, b, c, d) do {\
32 *a = (uint8_t)(ip >> 24 & 0xff);\
33 *b = (uint8_t)(ip >> 16 & 0xff);\
34 *c = (uint8_t)(ip >> 8 & 0xff);\
35 *d = (uint8_t)(ip & 0xff);\
38 #define DEFAULT_MAX_CATEGORIES 1
40 #define IPSEC_SA_MAX_ENTRIES (128) /* must be power of 2, max 2 power 30 */
41 #define SPI2IDX(spi) (spi & (IPSEC_SA_MAX_ENTRIES - 1))
42 #define INVALID_SPI (0)
44 #define DISCARD INVALID_SPI
45 #define BYPASS UINT32_MAX
47 #define IPSEC_XFORM_MAX 2
49 #define IP6_VERSION (6)
51 struct rte_crypto_xform;
57 typedef int32_t (*ipsec_xform_fn)(struct rte_mbuf *m, struct ipsec_sa *sa,
58 struct rte_crypto_op *cop);
70 #define MAX_KEY_SIZE 32
73 * application wide SA parameters
76 uint32_t enable; /* use librte_ipsec API for ipsec pkt processing */
77 uint32_t window_size; /* replay window size */
78 uint32_t enable_esn; /* enable/disable ESN support */
79 uint64_t flags; /* rte_ipsec_sa_prm.flags */
82 extern struct app_sa_prm app_sa_prm;
85 struct rte_ipsec_session ips; /* one session per sa for now */
91 struct rte_cryptodev_sym_session *crypto_session;
92 struct rte_security_session *sec_session;
94 enum rte_crypto_cipher_algorithm cipher_algo;
95 enum rte_crypto_auth_algorithm auth_algo;
96 enum rte_crypto_aead_algorithm aead_algo;
101 #define IP4_TUNNEL (1 << 0)
102 #define IP6_TUNNEL (1 << 1)
103 #define TRANSPORT (1 << 2)
104 #define IP4_TRANSPORT (1 << 3)
105 #define IP6_TRANSPORT (1 << 4)
108 uint8_t cipher_key[MAX_KEY_SIZE];
109 uint16_t cipher_key_len;
110 uint8_t auth_key[MAX_KEY_SIZE];
111 uint16_t auth_key_len;
114 struct rte_crypto_sym_xform *xforms;
115 struct rte_security_ipsec_xform *sec_xform;
117 enum rte_security_session_action_type type;
118 enum rte_security_ipsec_sa_direction direction;
120 struct rte_security_ctx *security_ctx;
123 #define MAX_RTE_FLOW_PATTERN (4)
124 #define MAX_RTE_FLOW_ACTIONS (3)
125 struct rte_flow_item pattern[MAX_RTE_FLOW_PATTERN];
126 struct rte_flow_action action[MAX_RTE_FLOW_ACTIONS];
127 struct rte_flow_attr attr;
129 struct rte_flow_item_ipv4 ipv4_spec;
130 struct rte_flow_item_ipv6 ipv6_spec;
132 struct rte_flow_item_esp esp_spec;
133 struct rte_flow *flow;
134 struct rte_security_session_conf sess_conf;
135 } __rte_cache_aligned;
137 struct ipsec_mbuf_metadata {
139 struct rte_crypto_op cop;
140 struct rte_crypto_sym_op sym_cop;
142 } __rte_cache_aligned;
144 #define IS_TRANSPORT(flags) ((flags) & TRANSPORT)
146 #define IS_TUNNEL(flags) ((flags) & (IP4_TUNNEL | IP6_TUNNEL))
148 #define IS_IP4(flags) ((flags) & (IP4_TUNNEL | IP4_TRANSPORT))
150 #define IS_IP6(flags) ((flags) & (IP6_TUNNEL | IP6_TRANSPORT))
152 #define IS_IP4_TUNNEL(flags) ((flags) & IP4_TUNNEL)
154 #define IS_IP6_TUNNEL(flags) ((flags) & IP6_TUNNEL)
157 * Macro for getting ipsec_sa flags statuses without version of protocol
158 * used for transport (IP4_TRANSPORT and IP6_TRANSPORT flags).
160 #define WITHOUT_TRANSPORT_VERSION(flags) \
161 ((flags) & (IP4_TUNNEL | \
170 struct rte_crypto_op *buf[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
174 struct rte_hash *cdev_map;
175 struct sp_ctx *sp4_ctx;
176 struct sp_ctx *sp6_ctx;
177 struct sa_ctx *sa_ctx;
180 struct cdev_qp tbl[MAX_QP_PER_LCORE];
181 struct rte_mempool *session_pool;
182 struct rte_mempool *session_priv_pool;
183 struct rte_mbuf *ol_pkts[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
184 uint16_t ol_pkts_cnt;
185 uint64_t ipv4_offloads;
186 uint64_t ipv6_offloads;
197 struct sa_ctx *sa_in;
198 struct sa_ctx *sa_out;
199 struct sp_ctx *sp_ip4_in;
200 struct sp_ctx *sp_ip4_out;
201 struct sp_ctx *sp_ip6_in;
202 struct sp_ctx *sp_ip6_out;
203 struct rt_ctx *rt_ip4;
204 struct rt_ctx *rt_ip6;
205 struct rte_mempool *mbuf_pool;
206 struct rte_mempool *mbuf_pool_indir;
207 struct rte_mempool *session_pool;
208 struct rte_mempool *session_priv_pool;
215 } __attribute__((packed));
217 struct traffic_type {
218 const uint8_t *data[MAX_PKT_BURST * 2];
219 struct rte_mbuf *pkts[MAX_PKT_BURST * 2];
220 struct ipsec_sa *saptr[MAX_PKT_BURST * 2];
221 uint32_t res[MAX_PKT_BURST * 2];
225 struct ipsec_traffic {
226 struct traffic_type ipsec;
227 struct traffic_type ip4;
228 struct traffic_type ip6;
232 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
233 uint16_t nb_pkts, uint16_t len);
236 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
237 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len);
240 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
244 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
248 ipsec_process(struct ipsec_ctx *ctx, struct ipsec_traffic *trf);
251 ipsec_cqp_process(struct ipsec_ctx *ctx, struct ipsec_traffic *trf);
253 static inline uint16_t
254 ipsec_metadata_size(void)
256 return sizeof(struct ipsec_mbuf_metadata);
259 static inline struct ipsec_mbuf_metadata *
260 get_priv(struct rte_mbuf *m)
262 return rte_mbuf_to_priv(m);
266 get_cnt_blk(struct rte_mbuf *m)
268 struct ipsec_mbuf_metadata *priv = get_priv(m);
270 return &priv->buf[0];
274 get_aad(struct rte_mbuf *m)
276 struct ipsec_mbuf_metadata *priv = get_priv(m);
278 return &priv->buf[16];
282 get_sym_cop(struct rte_crypto_op *cop)
288 inbound_sa_check(struct sa_ctx *sa_ctx, struct rte_mbuf *m, uint32_t sa_idx);
291 inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[],
292 struct ipsec_sa *sa[], uint16_t nb_pkts);
295 outbound_sa_lookup(struct sa_ctx *sa_ctx, uint32_t sa_idx[],
296 struct ipsec_sa *sa[], uint16_t nb_pkts);
299 sp4_init(struct socket_ctx *ctx, int32_t socket_id);
302 sp6_init(struct socket_ctx *ctx, int32_t socket_id);
305 * Search through SP rules for given SPI.
306 * Returns first rule index if found(greater or equal then zero),
307 * or -ENOENT otherwise.
310 sp4_spi_present(uint32_t spi, int inbound, struct ip_addr ip_addr[2],
313 sp6_spi_present(uint32_t spi, int inbound, struct ip_addr ip_addr[2],
317 * Search through SA entries for given SPI.
318 * Returns first entry index if found(greater or equal then zero),
319 * or -ENOENT otherwise.
322 sa_spi_present(uint32_t spi, int inbound);
325 sa_init(struct socket_ctx *ctx, int32_t socket_id);
328 rt_init(struct socket_ctx *ctx, int32_t socket_id);
331 sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
332 uint64_t *tx_offloads);
335 add_dst_ethaddr(uint16_t port, const struct rte_ether_addr *addr);
338 enqueue_cop_burst(struct cdev_qp *cqp);
341 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa);
344 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa);
346 #endif /* __IPSEC_H__ */