1 /* 2 * Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 /* We need to use some engine deprecated APIs */ 11 #define OPENSSL_SUPPRESS_DEPRECATED 12 13 #include "eng_local.h" 14 15 static ENGINE_TABLE *dsa_table = NULL; 16 static const int dummy_nid = 1; 17 18 void ENGINE_unregister_DSA(ENGINE *e) 19 { 20 engine_table_unregister(&dsa_table, e); 21 } 22 23 static void engine_unregister_all_DSA(void) 24 { 25 engine_table_cleanup(&dsa_table); 26 } 27 28 int ENGINE_register_DSA(ENGINE *e) 29 { 30 if (e->dsa_meth) 31 return engine_table_register(&dsa_table, 32 engine_unregister_all_DSA, e, &dummy_nid, 33 1, 0); 34 return 1; 35 } 36 37 void ENGINE_register_all_DSA(void) 38 { 39 ENGINE *e; 40 41 for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e)) 42 ENGINE_register_DSA(e); 43 } 44 45 int ENGINE_set_default_DSA(ENGINE *e) 46 { 47 if (e->dsa_meth) 48 return engine_table_register(&dsa_table, 49 engine_unregister_all_DSA, e, &dummy_nid, 50 1, 1); 51 return 1; 52 } 53 54 /* 55 * Exposed API function to get a functional reference from the implementation 56 * table (ie. try to get a functional reference from the tabled structural 57 * references). 58 */ 59 ENGINE *ENGINE_get_default_DSA(void) 60 { 61 return ossl_engine_table_select(&dsa_table, dummy_nid, 62 OPENSSL_FILE, OPENSSL_LINE); 63 } 64 65 /* Obtains an DSA implementation from an ENGINE functional reference */ 66 const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e) 67 { 68 return e->dsa_meth; 69 } 70 71 /* Sets an DSA implementation in an ENGINE structure */ 72 int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth) 73 { 74 e->dsa_meth = dsa_meth; 75 return 1; 76 } 77