1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Intel Corporation
8 #include <rte_rwlock.h>
10 #define IPSEC_MAX_HDR_SIZE 64
11 #define IPSEC_MAX_IV_SIZE 16
12 #define IPSEC_MAX_IV_QWORD (IPSEC_MAX_IV_SIZE / sizeof(uint64_t))
14 /* padding alignment for different algorithms */
16 IPSEC_PAD_DEFAULT = 4,
17 IPSEC_PAD_3DES_CBC = 8,
18 IPSEC_PAD_AES_CBC = IPSEC_MAX_IV_SIZE,
19 IPSEC_PAD_AES_CTR = IPSEC_PAD_DEFAULT,
20 IPSEC_PAD_AES_GCM = IPSEC_PAD_DEFAULT,
21 IPSEC_PAD_NULL = IPSEC_PAD_DEFAULT,
24 /* iv sizes for different algorithms */
26 IPSEC_IV_SIZE_DEFAULT = IPSEC_MAX_IV_SIZE,
27 IPSEC_AES_CTR_IV_SIZE = sizeof(uint64_t),
28 /* TripleDES supports IV size of 32bits or 64bits but he library
29 * only supports 64bits.
31 IPSEC_3DES_IV_SIZE = sizeof(uint64_t),
34 /* these definitions probably has to be in rte_crypto_sym.h */
44 #ifdef __SIZEOF_INT128__
53 #define REPLAY_SQN_NUM 2
54 #define REPLAY_SQN_NEXT(n) ((n) ^ 1)
59 __extension__ uint64_t window[0];
62 /*IPSEC SA supported algorithms */
74 uint64_t type; /* type of given SA */
75 uint64_t udata; /* user defined */
76 uint32_t size; /* size of given sa object */
78 /* sqn calculations related */
83 uint16_t bucket_index_mask;
85 /* template for crypto op fields */
87 union sym_op_ofslen cipher;
88 union sym_op_ofslen auth;
92 uint8_t proto; /* next proto */
98 uint8_t iv_ofs; /* offset for algo-specific IV inside crypto op */
102 /* template for tunnel header */
103 uint8_t hdr[IPSEC_MAX_HDR_SIZE];
106 * sqn and replay window
107 * In case of SA handled by multiple threads *sqn* cacheline
108 * could be shared by multiple cores.
109 * To minimise perfomance impact, we try to locate in a separate
110 * place from other frequently accesed data.
118 uint32_t rdidx; /* read index */
119 uint32_t wridx; /* write index */
120 struct replay_sqn *rsn[REPLAY_SQN_NUM];
124 } __rte_cache_aligned;
127 ipsec_sa_pkt_func_select(const struct rte_ipsec_session *ss,
128 const struct rte_ipsec_sa *sa, struct rte_ipsec_sa_pkt_func *pf);