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 * Keeps number of configured SA's for each address family:
64 typedef int32_t (*ipsec_xform_fn)(struct rte_mbuf *m, struct ipsec_sa *sa,
65 struct rte_crypto_op *cop);
77 #define MAX_KEY_SIZE 32
80 * application wide SA parameters
83 uint32_t enable; /* use librte_ipsec API for ipsec pkt processing */
84 uint32_t window_size; /* replay window size */
85 uint32_t enable_esn; /* enable/disable ESN support */
86 uint64_t flags; /* rte_ipsec_sa_prm.flags */
89 extern struct app_sa_prm app_sa_prm;
92 IPSEC_SESSION_PRIMARY = 0,
93 IPSEC_SESSION_FALLBACK = 1,
97 #define IPSEC_SA_OFFLOAD_FALLBACK_FLAG (1)
99 static inline struct ipsec_sa *
100 ipsec_mask_saptr(void *ptr)
102 uintptr_t i = (uintptr_t)ptr;
103 static const uintptr_t mask = IPSEC_SA_OFFLOAD_FALLBACK_FLAG;
107 return (struct ipsec_sa *)i;
111 struct rte_ipsec_session sessions[IPSEC_SESSION_MAX];
116 uint32_t fallback_sessions;
117 enum rte_crypto_cipher_algorithm cipher_algo;
118 enum rte_crypto_auth_algorithm auth_algo;
119 enum rte_crypto_aead_algorithm aead_algo;
124 #define IP4_TUNNEL (1 << 0)
125 #define IP6_TUNNEL (1 << 1)
126 #define TRANSPORT (1 << 2)
127 #define IP4_TRANSPORT (1 << 3)
128 #define IP6_TRANSPORT (1 << 4)
131 uint8_t cipher_key[MAX_KEY_SIZE];
132 uint16_t cipher_key_len;
133 uint8_t auth_key[MAX_KEY_SIZE];
134 uint16_t auth_key_len;
137 struct rte_crypto_sym_xform *xforms;
138 struct rte_security_ipsec_xform *sec_xform;
140 enum rte_security_ipsec_sa_direction direction;
143 #define MAX_RTE_FLOW_PATTERN (4)
144 #define MAX_RTE_FLOW_ACTIONS (3)
145 struct rte_flow_item pattern[MAX_RTE_FLOW_PATTERN];
146 struct rte_flow_action action[MAX_RTE_FLOW_ACTIONS];
147 struct rte_flow_attr attr;
149 struct rte_flow_item_ipv4 ipv4_spec;
150 struct rte_flow_item_ipv6 ipv6_spec;
152 struct rte_flow_item_esp esp_spec;
153 struct rte_flow *flow;
154 struct rte_security_session_conf sess_conf;
155 } __rte_cache_aligned;
157 struct ipsec_mbuf_metadata {
159 struct rte_crypto_op cop;
160 struct rte_crypto_sym_op sym_cop;
162 } __rte_cache_aligned;
164 #define IS_TRANSPORT(flags) ((flags) & TRANSPORT)
166 #define IS_TUNNEL(flags) ((flags) & (IP4_TUNNEL | IP6_TUNNEL))
168 #define IS_IP4(flags) ((flags) & (IP4_TUNNEL | IP4_TRANSPORT))
170 #define IS_IP6(flags) ((flags) & (IP6_TUNNEL | IP6_TRANSPORT))
172 #define IS_IP4_TUNNEL(flags) ((flags) & IP4_TUNNEL)
174 #define IS_IP6_TUNNEL(flags) ((flags) & IP6_TUNNEL)
177 * Macro for getting ipsec_sa flags statuses without version of protocol
178 * used for transport (IP4_TRANSPORT and IP6_TRANSPORT flags).
180 #define WITHOUT_TRANSPORT_VERSION(flags) \
181 ((flags) & (IP4_TUNNEL | \
190 struct rte_crypto_op *buf[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
194 struct rte_hash *cdev_map;
195 struct sp_ctx *sp4_ctx;
196 struct sp_ctx *sp6_ctx;
197 struct sa_ctx *sa_ctx;
200 struct cdev_qp tbl[MAX_QP_PER_LCORE];
201 struct rte_mempool *session_pool;
202 struct rte_mempool *session_priv_pool;
203 struct rte_mbuf *ol_pkts[MAX_PKT_BURST] __rte_aligned(sizeof(void *));
204 uint16_t ol_pkts_cnt;
205 uint64_t ipv4_offloads;
206 uint64_t ipv6_offloads;
217 struct sa_ctx *sa_in;
218 struct sa_ctx *sa_out;
219 struct sp_ctx *sp_ip4_in;
220 struct sp_ctx *sp_ip4_out;
221 struct sp_ctx *sp_ip6_in;
222 struct sp_ctx *sp_ip6_out;
223 struct rt_ctx *rt_ip4;
224 struct rt_ctx *rt_ip6;
225 struct rte_mempool *mbuf_pool;
226 struct rte_mempool *mbuf_pool_indir;
227 struct rte_mempool *session_pool;
228 struct rte_mempool *session_priv_pool;
235 } __attribute__((packed));
237 struct traffic_type {
238 const uint8_t *data[MAX_PKT_BURST * 2];
239 struct rte_mbuf *pkts[MAX_PKT_BURST * 2];
240 void *saptr[MAX_PKT_BURST * 2];
241 uint32_t res[MAX_PKT_BURST * 2];
245 struct ipsec_traffic {
246 struct traffic_type ipsec;
247 struct traffic_type ip4;
248 struct traffic_type ip6;
252 ipsec_inbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
253 uint16_t nb_pkts, uint16_t len);
256 ipsec_outbound(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
257 uint32_t sa_idx[], uint16_t nb_pkts, uint16_t len);
260 ipsec_inbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
264 ipsec_outbound_cqp_dequeue(struct ipsec_ctx *ctx, struct rte_mbuf *pkts[],
268 ipsec_process(struct ipsec_ctx *ctx, struct ipsec_traffic *trf);
271 ipsec_cqp_process(struct ipsec_ctx *ctx, struct ipsec_traffic *trf);
273 static inline uint16_t
274 ipsec_metadata_size(void)
276 return sizeof(struct ipsec_mbuf_metadata);
279 static inline struct ipsec_mbuf_metadata *
280 get_priv(struct rte_mbuf *m)
282 return rte_mbuf_to_priv(m);
286 get_cnt_blk(struct rte_mbuf *m)
288 struct ipsec_mbuf_metadata *priv = get_priv(m);
290 return &priv->buf[0];
294 get_aad(struct rte_mbuf *m)
296 struct ipsec_mbuf_metadata *priv = get_priv(m);
298 return &priv->buf[16];
302 get_sym_cop(struct rte_crypto_op *cop)
307 static inline struct rte_ipsec_session *
308 ipsec_get_primary_session(struct ipsec_sa *sa)
310 return &sa->sessions[IPSEC_SESSION_PRIMARY];
313 static inline struct rte_ipsec_session *
314 ipsec_get_fallback_session(struct ipsec_sa *sa)
316 return &sa->sessions[IPSEC_SESSION_FALLBACK];
319 static inline enum rte_security_session_action_type
320 ipsec_get_action_type(struct ipsec_sa *sa)
322 struct rte_ipsec_session *ips;
323 ips = ipsec_get_primary_session(sa);
328 inbound_sa_check(struct sa_ctx *sa_ctx, struct rte_mbuf *m, uint32_t sa_idx);
331 inbound_sa_lookup(struct sa_ctx *sa_ctx, struct rte_mbuf *pkts[],
332 void *sa[], uint16_t nb_pkts);
335 outbound_sa_lookup(struct sa_ctx *sa_ctx, uint32_t sa_idx[],
336 void *sa[], uint16_t nb_pkts);
339 sp4_init(struct socket_ctx *ctx, int32_t socket_id);
342 sp6_init(struct socket_ctx *ctx, int32_t socket_id);
345 * Search through SP rules for given SPI.
346 * Returns first rule index if found(greater or equal then zero),
347 * or -ENOENT otherwise.
350 sp4_spi_present(uint32_t spi, int inbound, struct ip_addr ip_addr[2],
353 sp6_spi_present(uint32_t spi, int inbound, struct ip_addr ip_addr[2],
357 * Search through SA entries for given SPI.
358 * Returns first entry index if found(greater or equal then zero),
359 * or -ENOENT otherwise.
362 sa_spi_present(uint32_t spi, int inbound);
365 sa_init(struct socket_ctx *ctx, int32_t socket_id);
368 rt_init(struct socket_ctx *ctx, int32_t socket_id);
371 sa_check_offloads(uint16_t port_id, uint64_t *rx_offloads,
372 uint64_t *tx_offloads);
375 add_dst_ethaddr(uint16_t port, const struct rte_ether_addr *addr);
378 enqueue_cop_burst(struct cdev_qp *cqp);
381 create_lookaside_session(struct ipsec_ctx *ipsec_ctx, struct ipsec_sa *sa,
382 struct rte_ipsec_session *ips);
385 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa,
386 struct rte_ipsec_session *ips);
388 #endif /* __IPSEC_H__ */