1 | /*
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2 | * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | #include "eng_local.h"
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11 |
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12 | static ENGINE_TABLE *dh_table = NULL;
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13 | static const int dummy_nid = 1;
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14 |
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15 | void ENGINE_unregister_EC(ENGINE *e)
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16 | {
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17 | engine_table_unregister(&dh_table, e);
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18 | }
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19 |
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20 | static void engine_unregister_all_EC(void)
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21 | {
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22 | engine_table_cleanup(&dh_table);
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23 | }
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24 |
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25 | int ENGINE_register_EC(ENGINE *e)
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26 | {
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27 | if (e->ec_meth != NULL)
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28 | return engine_table_register(&dh_table,
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29 | engine_unregister_all_EC, e, &dummy_nid,
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30 | 1, 0);
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31 | return 1;
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32 | }
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33 |
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34 | void ENGINE_register_all_EC(void)
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35 | {
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36 | ENGINE *e;
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37 |
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38 | for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
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39 | ENGINE_register_EC(e);
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40 | }
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41 |
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42 | int ENGINE_set_default_EC(ENGINE *e)
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43 | {
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44 | if (e->ec_meth != NULL)
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45 | return engine_table_register(&dh_table,
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46 | engine_unregister_all_EC, e, &dummy_nid,
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47 | 1, 1);
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48 | return 1;
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49 | }
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50 |
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51 | /*
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52 | * Exposed API function to get a functional reference from the implementation
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53 | * table (ie. try to get a functional reference from the tabled structural
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54 | * references).
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55 | */
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56 | ENGINE *ENGINE_get_default_EC(void)
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57 | {
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58 | return engine_table_select(&dh_table, dummy_nid);
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59 | }
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60 |
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61 | /* Obtains an EC_KEY implementation from an ENGINE functional reference */
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62 | const EC_KEY_METHOD *ENGINE_get_EC(const ENGINE *e)
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63 | {
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64 | return e->ec_meth;
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65 | }
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66 |
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67 | /* Sets an EC_KEY implementation in an ENGINE structure */
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68 | int ENGINE_set_EC(ENGINE *e, const EC_KEY_METHOD *ec_meth)
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69 | {
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70 | e->ec_meth = ec_meth;
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71 | return 1;
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72 | }
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