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 INVALID_SPI (0)
42 #define DISCARD INVALID_SPI
43 #define BYPASS UINT32_MAX
45 #define IPSEC_XFORM_MAX 2
47 #define IP6_VERSION (6)
49 struct rte_crypto_xform;
55 * Keeps number of configured SA's for each address family:
62 typedef int32_t (*ipsec_xform_fn)(struct rte_mbuf *m, struct ipsec_sa *sa,
63 struct rte_crypto_op *cop);
75 #define MAX_KEY_SIZE 32
78 * application wide SA parameters
81 uint32_t enable; /* use librte_ipsec API for ipsec pkt processing */
82 uint32_t window_size; /* replay window size */
83 uint32_t enable_esn; /* enable/disable ESN support */
84 uint32_t cache_sz; /* per lcore SA cache size */
85 uint64_t flags; /* rte_ipsec_sa_prm.flags */
88 extern struct app_sa_prm app_sa_prm;
91 IPSEC_SESSION_PRIMARY = 0,
92 IPSEC_SESSION_FALLBACK = 1,
96 #define IPSEC_SA_OFFLOAD_FALLBACK_FLAG (1)
98 static inline struct ipsec_sa *
99 ipsec_mask_saptr(void *ptr)
101 uintptr_t i = (uintptr_t)ptr;
102 static const uintptr_t mask = IPSEC_SA_OFFLOAD_FALLBACK_FLAG;
106 return (struct ipsec_sa *)i;
110 struct rte_ipsec_session sessions[IPSEC_SESSION_MAX];
115 uint32_t fallback_sessions;
116 enum rte_crypto_cipher_algorithm cipher_algo;
117 enum rte_crypto_auth_algorithm auth_algo;
118 enum rte_crypto_aead_algorithm aead_algo;
123 #define IP4_TUNNEL (1 << 0)
124 #define IP6_TUNNEL (1 << 1)
125 #define TRANSPORT (1 << 2)
126 #define IP4_TRANSPORT (1 << 3)
127 #define IP6_TRANSPORT (1 << 4)
130 uint8_t cipher_key[MAX_KEY_SIZE];
131 uint16_t cipher_key_len;
132 uint8_t auth_key[MAX_KEY_SIZE];
133 uint16_t auth_key_len;
136 struct rte_crypto_sym_xform *xforms;
137 struct rte_security_ipsec_xform *sec_xform;
139 enum rte_security_ipsec_sa_direction direction;
142 #define MAX_RTE_FLOW_PATTERN (4)
143 #define MAX_RTE_FLOW_ACTIONS (3)
144 struct rte_flow_item pattern[MAX_RTE_FLOW_PATTERN];
145 struct rte_flow_action action[MAX_RTE_FLOW_ACTIONS];
146 struct rte_flow_attr attr;
148 struct rte_flow_item_ipv4 ipv4_spec;
149 struct rte_flow_item_ipv6 ipv6_spec;
151 struct rte_flow_item_esp esp_spec;
152 struct rte_flow *flow;
153 struct rte_security_session_conf sess_conf;
154 } __rte_cache_aligned;
156 struct ipsec_mbuf_metadata {
158 struct rte_crypto_op cop;
159 struct rte_crypto_sym_op sym_cop;
161 } __rte_cache_aligned;
163 #define IS_TRANSPORT(flags) ((flags) & TRANSPORT)
165 #define IS_TUNNEL(flags) ((flags) & (IP4_TUNNEL | IP6_TUNNEL))
167 #define IS_IP4(flags) ((flags) & (IP4_TUNNEL | IP4_TRANSPORT))
169 #define IS_IP6(flags) ((flags) & (IP6_TUNNEL | IP6_TRANSPORT))
171 #define IS_IP4_TUNNEL(flags) ((flags) & IP4_TUNNEL)
173 #define IS_IP6_TUNNEL(flags) ((flags) & IP6_TUNNEL)
176 * Macro for getting ipsec_sa flags statuses without version of protocol
177 * used for transport (IP4_TRANSPORT and IP6_TRANSPORT flags).
179 #define WITHOUT_TRANSPORT_VERSION(flags) \
180 ((flags) & (IP4_TUNNEL | \
189 struct rte_crypto_op *buf[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
193 struct rte_hash *cdev_map;
194 struct sp_ctx *sp4_ctx;
195 struct sp_ctx *sp6_ctx;
196 struct sa_ctx *sa_ctx;
199 struct cdev_qp tbl[MAX_QP_PER_LCORE];
200 struct rte_mempool *session_pool;
201 struct rte_mempool *session_priv_pool;
202 struct rte_mbuf *ol_pkts[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
203 uint16_t ol_pkts_cnt;
204 uint64_t ipv4_offloads;
205 uint64_t ipv6_offloads;
216 struct sa_ctx *sa_in;
217 struct sa_ctx *sa_out;
218 struct sp_ctx *sp_ip4_in;
219 struct sp_ctx *sp_ip4_out;
220 struct sp_ctx *sp_ip6_in;
221 struct sp_ctx *sp_ip6_out;
222 struct rt_ctx *rt_ip4;
223 struct rt_ctx *rt_ip6;
224 struct rte_mempool *mbuf_pool;
225 struct rte_mempool *mbuf_pool_indir;
226 struct rte_mempool *session_pool;
227 struct rte_mempool *session_priv_pool;
234 } __attribute__((packed));
236 struct traffic_type {
237 const uint8_t *data[MAX_PKT_BURST * 2];
238 struct rte_mbuf *pkts[MAX_PKT_BURST * 2];
239 void *saptr[MAX_PKT_BURST * 2];
240 uint32_t res[MAX_PKT_BURST * 2];
244 struct ipsec_traffic {
245 struct traffic_type ipsec;
246 struct traffic_type ip4;
247 struct traffic_type ip6;
251 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
252 uint16_t nb_pkts, uint16_t len);
255 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
256 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len);
259 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
263 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
267 ipsec_process(struct ipsec_ctx *ctx, struct ipsec_traffic *trf);
270 ipsec_cqp_process(struct ipsec_ctx *ctx, struct ipsec_traffic *trf);
272 static inline uint16_t
273 ipsec_metadata_size(void)
275 return sizeof(struct ipsec_mbuf_metadata);
278 static inline struct ipsec_mbuf_metadata *
279 get_priv(struct rte_mbuf *m)
281 return rte_mbuf_to_priv(m);
285 get_cnt_blk(struct rte_mbuf *m)
287 struct ipsec_mbuf_metadata *priv = get_priv(m);
289 return &priv->buf[0];
293 get_aad(struct rte_mbuf *m)
295 struct ipsec_mbuf_metadata *priv = get_priv(m);
297 return &priv->buf[16];
301 get_sym_cop(struct rte_crypto_op *cop)
306 static inline struct rte_ipsec_session *
307 ipsec_get_primary_session(struct ipsec_sa *sa)
309 return &sa->sessions[IPSEC_SESSION_PRIMARY];
312 static inline struct rte_ipsec_session *
313 ipsec_get_fallback_session(struct ipsec_sa *sa)
315 return &sa->sessions[IPSEC_SESSION_FALLBACK];
318 static inline enum rte_security_session_action_type
319 ipsec_get_action_type(struct ipsec_sa *sa)
321 struct rte_ipsec_session *ips;
322 ips = ipsec_get_primary_session(sa);
327 inbound_sa_check(struct sa_ctx *sa_ctx, struct rte_mbuf *m, uint32_t sa_idx);
330 inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[],
331 void *sa[], uint16_t nb_pkts);
334 outbound_sa_lookup(struct sa_ctx *sa_ctx, uint32_t sa_idx[],
335 void *sa[], uint16_t nb_pkts);
338 sp4_init(struct socket_ctx *ctx, int32_t socket_id);
341 sp6_init(struct socket_ctx *ctx, int32_t socket_id);
344 * Search through SP rules for given SPI.
345 * Returns first rule index if found(greater or equal then zero),
346 * or -ENOENT otherwise.
349 sp4_spi_present(uint32_t spi, int inbound, struct ip_addr ip_addr[2],
352 sp6_spi_present(uint32_t spi, int inbound, struct ip_addr ip_addr[2],
356 * Search through SA entries for given SPI.
357 * Returns first entry index if found(greater or equal then zero),
358 * or -ENOENT otherwise.
361 sa_spi_present(struct sa_ctx *sa_ctx, uint32_t spi, int inbound);
364 sa_init(struct socket_ctx *ctx, int32_t socket_id);
367 rt_init(struct socket_ctx *ctx, int32_t socket_id);
370 sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
371 uint64_t *tx_offloads);
374 add_dst_ethaddr(uint16_t port, const struct rte_ether_addr *addr);
377 enqueue_cop_burst(struct cdev_qp *cqp);
380 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa,
381 struct rte_ipsec_session *ips);
384 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa,
385 struct rte_ipsec_session *ips);
387 #endif /* __IPSEC_H__ */