2 * Copyright (c) 2018 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
17 #include <vlib/vlib.h>
18 #include <vnet/crypto/crypto.h>
20 vnet_crypto_main_t crypto_main;
22 static_always_inline u32
23 vnet_crypto_process_ops_call_handler (vlib_main_t * vm,
24 vnet_crypto_main_t * cm,
25 vnet_crypto_op_type_t opt,
26 vnet_crypto_op_t * ops[], u32 n_ops)
31 if (cm->ops_handlers[opt] == 0)
35 ops[0]->status = VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER;
41 return (cm->ops_handlers[opt]) (vm, ops, n_ops);
46 vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
48 vnet_crypto_main_t *cm = &crypto_main;
49 const int op_q_size = VLIB_FRAME_SIZE;
50 vnet_crypto_op_t *op_queue[op_q_size];
51 vnet_crypto_op_type_t opt, current_op_type = ~0;
57 for (i = 0; i < n_ops; i++)
61 if (current_op_type != opt || n_op_queue >= op_q_size)
63 rv += vnet_crypto_process_ops_call_handler (vm, cm, current_op_type,
64 op_queue, n_op_queue);
66 current_op_type = opt;
69 op_queue[n_op_queue++] = &ops[i];
72 rv += vnet_crypto_process_ops_call_handler (vm, cm, current_op_type,
73 op_queue, n_op_queue);
78 vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
81 vnet_crypto_main_t *cm = &crypto_main;
82 vnet_crypto_engine_t *p;
84 vec_add2 (cm->engines, p, 1);
89 hash_set_mem (cm->engine_index_by_name, p->name, p - cm->engines);
91 return p - cm->engines;
95 vnet_crypto_set_handler (char *ops_handler_name, char *engine)
98 vnet_crypto_main_t *cm = &crypto_main;
99 vnet_crypto_op_type_t ot;
100 vnet_crypto_op_type_data_t *otd;
101 vnet_crypto_engine_t *ce;
103 p = hash_get_mem (cm->ops_handler_index_by_name, ops_handler_name);
108 otd = cm->opt_data + ot;
110 p = hash_get_mem (cm->engine_index_by_name, engine);
114 ce = cm->engines + p[0];
115 otd->active_engine_index = p[0];
116 cm->ops_handlers[ot] = ce->ops_handlers[ot];
122 vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
123 vnet_crypto_op_type_t opt,
124 vnet_crypto_ops_handler_t * fn)
126 vnet_crypto_main_t *cm = &crypto_main;
127 vnet_crypto_engine_t *ae, *e = vec_elt_at_index (cm->engines, engine_index);
128 vnet_crypto_op_type_data_t *otd = cm->opt_data + opt;
129 vec_validate_aligned (cm->ops_handlers, VNET_CRYPTO_N_OP_TYPES - 1,
130 CLIB_CACHE_LINE_BYTES);
131 e->ops_handlers[opt] = fn;
133 if (otd->active_engine_index == ~0)
135 otd->active_engine_index = engine_index;
136 cm->ops_handlers[opt] = fn;
139 ae = vec_elt_at_index (cm->engines, otd->active_engine_index);
140 if (ae->priority < e->priority)
142 otd->active_engine_index = engine_index;
143 cm->ops_handlers[opt] = fn;
150 vnet_crypto_init (vlib_main_t * vm)
152 vnet_crypto_main_t *cm = &crypto_main;
153 vlib_thread_main_t *tm = vlib_get_thread_main ();
154 #define CRYPTO_ENC_STR "encrypt"
155 #define CRYPTO_DEC_STR "decrypt"
156 #define CRYPTO_HMAC_STR "hmac"
158 cm->engine_index_by_name = hash_create_string ( /* size */ 0,
160 cm->ops_handler_index_by_name = hash_create_string (0, sizeof (uword));
162 vec_validate_aligned (cm->threads, tm->n_vlib_mains, CLIB_CACHE_LINE_BYTES);
163 vec_validate (cm->algs, VNET_CRYPTO_N_ALGS);
166 cm->algs[VNET_CRYPTO_ALG_##n].name = s; \
167 cm->opt_data[VNET_CRYPTO_OP_##n##_ENC].alg = VNET_CRYPTO_ALG_##n; \
168 cm->opt_data[VNET_CRYPTO_OP_##n##_DEC].alg = VNET_CRYPTO_ALG_##n; \
169 cm->opt_data[VNET_CRYPTO_OP_##n##_ENC].desc = CRYPTO_ENC_STR; \
170 cm->opt_data[VNET_CRYPTO_OP_##n##_DEC].desc = CRYPTO_DEC_STR; \
171 cm->opt_data[VNET_CRYPTO_OP_##n##_ENC].active_engine_index = ~0; \
172 cm->opt_data[VNET_CRYPTO_OP_##n##_DEC].active_engine_index = ~0; \
173 hash_set_mem (cm->ops_handler_index_by_name, CRYPTO_ENC_STR "-" s, \
174 VNET_CRYPTO_OP_##n##_ENC); \
175 hash_set_mem (cm->ops_handler_index_by_name, CRYPTO_DEC_STR "-" s, \
176 VNET_CRYPTO_OP_##n##_DEC);
181 cm->algs[VNET_CRYPTO_ALG_##n].name = s; \
182 cm->opt_data[VNET_CRYPTO_OP_##n##_HMAC].alg = VNET_CRYPTO_ALG_##n; \
183 cm->opt_data[VNET_CRYPTO_OP_##n##_HMAC].desc = CRYPTO_HMAC_STR; \
184 cm->opt_data[VNET_CRYPTO_OP_##n##_HMAC].active_engine_index = ~0; \
185 hash_set_mem (cm->ops_handler_index_by_name, CRYPTO_HMAC_STR "-" s, \
186 VNET_CRYPTO_OP_##n##_HMAC);
193 VLIB_INIT_FUNCTION (vnet_crypto_init);
196 * fd.io coding-style-patch-verification: ON
199 * eval: (c-set-style "gnu")