projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c2facd1 RW |
1 | /* |
| 2 | * Copyright (C) 2018 NetDEF, Inc. | |
| 3 | * Renato Westphal | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU General Public License as published by the Free | |
| 7 | * Software Foundation; either version 2 of the License, or (at your option) | |
| 8 | * any later version. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 13 | * more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU General Public License along | |
| 16 | * with this program; see the file COPYING; if not, write to the Free Software | |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 18 | */ | |
| 19 | ||
| 20 | #ifndef _FRR_YANG_TRANSLATOR_H_ | |
| 21 | #define _FRR_YANG_TRANSLATOR_H_ | |
| 22 | ||
| 23 | #define YANG_TRANSLATE_TO_NATIVE 0 | |
| 24 | #define YANG_TRANSLATE_FROM_NATIVE 1 | |
| 25 | #define YANG_TRANSLATE_MAX 2 | |
| 26 | ||
| 27 | struct yang_tmodule { | |
| 28 | const struct lys_module *module; | |
| 29 | const struct lys_module *deviations; | |
| 30 | uint32_t nodes_before_deviations; | |
| 31 | uint32_t nodes_after_deviations; | |
| 32 | double coverage; | |
| 33 | }; | |
| 34 | ||
| 35 | struct yang_translator { | |
| 36 | RB_ENTRY(yang_translator) entry; | |
| 37 | char family[32]; | |
| 38 | struct ly_ctx *ly_ctx; | |
| 39 | struct list *modules; | |
| 40 | struct hash *mappings[YANG_TRANSLATE_MAX]; | |
| 41 | }; | |
| 42 | RB_HEAD(yang_translators, yang_translator); | |
| 43 | RB_PROTOTYPE(yang_translators, yang_translator, entry, yang_translator_compare); | |
| 44 | ||
| 45 | enum yang_translate_result { | |
| 46 | YANG_TRANSLATE_SUCCESS, | |
| 47 | YANG_TRANSLATE_NOTFOUND, | |
| 48 | YANG_TRANSLATE_FAILURE, | |
| 49 | }; | |
| 50 | ||
| 51 | /* Tree of all loaded YANG module translators. */ | |
| 52 | extern struct yang_translators yang_translators; | |
| 53 | ||
| 54 | /* | |
| 55 | * Load a YANG module translator from a JSON file. | |
| 56 | * | |
| 57 | * path | |
| 58 | * Absolute path to the module translator file. | |
| 59 | * | |
| 60 | * Returns: | |
| 61 | * Pointer to newly created YANG module translator, or NULL in the case of an | |
| 62 | * error. | |
| 63 | */ | |
| 64 | extern struct yang_translator *yang_translator_load(const char *path); | |
| 65 | ||
| 66 | /* | |
| 67 | * Unload a YANG module translator. | |
| 68 | * | |
| 69 | * translator | |
| 70 | * Pointer to the YANG module translator. | |
| 71 | */ | |
| 72 | extern void yang_translator_unload(struct yang_translator *translator); | |
| 73 | ||
| 74 | /* | |
| 75 | * Find a YANG module translator by its family name. | |
| 76 | * | |
| 77 | * family | |
| 78 | * Family of the YANG module translator (e.g. ietf, openconfig). | |
| 79 | * | |
| 80 | * Returns: | |
| 81 | * Pointer to the YANG module translator if found, NULL otherwise. | |
| 82 | */ | |
| 83 | extern struct yang_translator *yang_translator_find(const char *family); | |
| 84 | ||
| 85 | /* | |
| 86 | * Translate an XPath expression. | |
| 87 | * | |
| 88 | * translator | |
| 89 | * Pointer to YANG module translator. | |
| 90 | * | |
| 91 | * dir | |
| 92 | * Direction of the translation (either YANG_TRANSLATE_TO_NATIVE or | |
| 93 | * YANG_TRANSLATE_FROM_NATIVE). | |
| 94 | * | |
| 95 | * xpath | |
| 96 | * Pointer to previously allocated buffer containing the xpath expression to | |
| 97 | * be translated. | |
| 98 | * | |
| 99 | * xpath_len | |
| 100 | * Size of the xpath buffer. | |
| 101 | * | |
| 102 | * Returns: | |
| 103 | * - YANG_TRANSLATE_SUCCESS on success. | |
| 104 | * - YANG_TRANSLATE_NOTFOUND when there's no available mapping to perform | |
| 105 | * the translation. | |
| 106 | * - YANG_TRANSLATE_FAILURE when an error occurred during the translation. | |
| 107 | */ | |
| 108 | extern enum yang_translate_result | |
| 109 | yang_translate_xpath(const struct yang_translator *translator, int dir, | |
| 110 | char *xpath, size_t xpath_len); | |
| 111 | ||
| 112 | /* | |
| 113 | * Translate an entire libyang data node. | |
| 114 | * | |
| 115 | * translator | |
| 116 | * Pointer to YANG module translator. | |
| 117 | * | |
| 118 | * dir | |
| 119 | * Direction of the translation (either YANG_TRANSLATE_TO_NATIVE or | |
| 120 | * YANG_TRANSLATE_FROM_NATIVE). | |
| 121 | * | |
| 122 | * dnode | |
| 123 | * libyang schema node we want to translate. | |
| 124 | * | |
| 125 | * Returns: | |
| 126 | * - YANG_TRANSLATE_SUCCESS on success. | |
| 127 | * - YANG_TRANSLATE_FAILURE when an error occurred during the translation. | |
| 128 | */ | |
| 129 | extern int yang_translate_dnode(const struct yang_translator *translator, | |
| 130 | int dir, struct lyd_node **dnode); | |
| 131 | ||
| 132 | /* | |
| 133 | * Initialize the YANG module translator subsystem. Should be called only once | |
| 134 | * during the daemon initialization process. | |
| 135 | */ | |
| 136 | extern void yang_translator_init(void); | |
| 137 | ||
| 138 | /* | |
| 139 | * Finish the YANG module translator subsystem gracefully. Should be called only | |
| 140 | * when the daemon is exiting. | |
| 141 | */ | |
| 142 | extern void yang_translator_terminate(void); | |
| 143 | ||
| 144 | #endif /* _FRR_YANG_TRANSLATOR_H_ */ |