1 /* 2 * Copyright (c) 2017 Thomas Pornin <pornin@bolet.org> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sublicense, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 25 #include "inner.h" 26 27 /* see bearssl_ssl.h */ 28 void 29 br_ssl_engine_set_default_aes_gcm(br_ssl_engine_context *cc) 30 { 31 #if BR_AES_X86NI || BR_POWER8 32 const br_block_ctr_class *ictr; 33 br_ghash ighash; 34 #endif 35 36 br_ssl_engine_set_gcm(cc, 37 &br_sslrec_in_gcm_vtable, 38 &br_sslrec_out_gcm_vtable); 39 #if BR_AES_X86NI 40 ictr = br_aes_x86ni_ctr_get_vtable(); 41 if (ictr != NULL) { 42 br_ssl_engine_set_aes_ctr(cc, ictr); 43 } else { 44 #if BR_64 45 br_ssl_engine_set_aes_ctr(cc, &br_aes_ct64_ctr_vtable); 46 #else 47 br_ssl_engine_set_aes_ctr(cc, &br_aes_ct_ctr_vtable); 48 #endif 49 } 50 #elif BR_POWER8 51 ictr = br_aes_pwr8_ctr_get_vtable(); 52 if (ictr != NULL) { 53 br_ssl_engine_set_aes_ctr(cc, ictr); 54 } else { 55 #if BR_64 56 br_ssl_engine_set_aes_ctr(cc, &br_aes_ct64_ctr_vtable); 57 #else 58 br_ssl_engine_set_aes_ctr(cc, &br_aes_ct_ctr_vtable); 59 #endif 60 } 61 #else 62 #if BR_64 63 br_ssl_engine_set_aes_ctr(cc, &br_aes_ct64_ctr_vtable); 64 #else 65 br_ssl_engine_set_aes_ctr(cc, &br_aes_ct_ctr_vtable); 66 #endif 67 #endif 68 #if BR_AES_X86NI 69 ighash = br_ghash_pclmul_get(); 70 if (ighash != 0) { 71 br_ssl_engine_set_ghash(cc, ighash); 72 return; 73 } 74 #endif 75 #if BR_POWER8 76 ighash = br_ghash_pwr8_get(); 77 if (ighash != 0) { 78 br_ssl_engine_set_ghash(cc, ighash); 79 return; 80 } 81 #endif 82 #if BR_LOMUL 83 br_ssl_engine_set_ghash(cc, &br_ghash_ctmul32); 84 #elif BR_64 85 br_ssl_engine_set_ghash(cc, &br_ghash_ctmul64); 86 #else 87 br_ssl_engine_set_ghash(cc, &br_ghash_ctmul); 88 #endif 89 } 90