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1c84efe4 CH |
1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* | |
3 | * MGMTD Datastores | |
4 | * | |
5 | * Copyright (C) 2021 Vmware, Inc. | |
6 | * Pushpasis Sarkar <spushpasis@vmware.com> | |
7 | */ | |
8 | ||
9 | #include <zebra.h> | |
10 | #include "md5.h" | |
11 | #include "mgmtd/mgmt.h" | |
12 | #include "mgmtd/mgmt_memory.h" | |
13 | #include "mgmtd/mgmt_ds.h" | |
74335ceb YR |
14 | #include "mgmtd/mgmt_history.h" |
15 | #include "mgmtd/mgmt_txn.h" | |
1c84efe4 CH |
16 | #include "libyang/libyang.h" |
17 | ||
1c84efe4 | 18 | #define MGMTD_DS_DBG(fmt, ...) \ |
cfa0facb | 19 | DEBUGD(&mgmt_debug_ds, "%s:" fmt, __func__, ##__VA_ARGS__) |
1c84efe4 CH |
20 | #define MGMTD_DS_ERR(fmt, ...) \ |
21 | zlog_err("%s: ERROR: " fmt, __func__, ##__VA_ARGS__) | |
1c84efe4 CH |
22 | |
23 | struct mgmt_ds_ctx { | |
ef43a632 | 24 | Mgmtd__DatastoreId ds_id; |
1c84efe4 CH |
25 | int lock; /* 0 unlocked, >0 read locked < write locked */ |
26 | ||
27 | bool config_ds; | |
28 | ||
29 | union { | |
30 | struct nb_config *cfg_root; | |
31 | struct lyd_node *dnode_root; | |
32 | } root; | |
33 | }; | |
34 | ||
35 | const char *mgmt_ds_names[MGMTD_DS_MAX_ID + 1] = { | |
36 | MGMTD_DS_NAME_NONE, /* MGMTD_DS_NONE */ | |
37 | MGMTD_DS_NAME_RUNNING, /* MGMTD_DS_RUNNING */ | |
38 | MGMTD_DS_NAME_CANDIDATE, /* MGMTD_DS_CANDIDATE */ | |
39 | MGMTD_DS_NAME_OPERATIONAL, /* MGMTD_DS_OPERATIONAL */ | |
40 | "Unknown/Invalid", /* MGMTD_DS_ID_MAX */ | |
41 | }; | |
42 | ||
43 | static struct mgmt_master *mgmt_ds_mm; | |
44 | static struct mgmt_ds_ctx running, candidate, oper; | |
45 | ||
46 | /* Dump the data tree of the specified format in the file pointed by the path */ | |
47 | static int mgmt_ds_dump_in_memory(struct mgmt_ds_ctx *ds_ctx, | |
48 | const char *base_xpath, LYD_FORMAT format, | |
49 | struct ly_out *out) | |
50 | { | |
51 | struct lyd_node *root; | |
52 | uint32_t options = 0; | |
53 | ||
54 | if (base_xpath[0] == '\0') | |
55 | root = ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode | |
56 | : ds_ctx->root.dnode_root; | |
57 | else | |
58 | root = yang_dnode_get(ds_ctx->config_ds | |
59 | ? ds_ctx->root.cfg_root->dnode | |
60 | : ds_ctx->root.dnode_root, | |
61 | base_xpath); | |
62 | if (!root) | |
63 | return -1; | |
64 | ||
65 | options = ds_ctx->config_ds ? LYD_PRINT_WD_TRIM : | |
66 | LYD_PRINT_WD_EXPLICIT; | |
67 | ||
68 | if (base_xpath[0] == '\0') | |
69 | lyd_print_all(out, root, format, options); | |
70 | else | |
71 | lyd_print_tree(out, root, format, options); | |
72 | ||
73 | return 0; | |
74 | } | |
75 | ||
76 | static int mgmt_ds_replace_dst_with_src_ds(struct mgmt_ds_ctx *src, | |
77 | struct mgmt_ds_ctx *dst) | |
78 | { | |
79 | struct lyd_node *dst_dnode, *src_dnode; | |
1c84efe4 CH |
80 | |
81 | if (!src || !dst) | |
82 | return -1; | |
83 | MGMTD_DS_DBG("Replacing %d with %d", dst->ds_id, src->ds_id); | |
84 | ||
85 | src_dnode = src->config_ds ? src->root.cfg_root->dnode | |
86 | : dst->root.dnode_root; | |
87 | dst_dnode = dst->config_ds ? dst->root.cfg_root->dnode | |
88 | : dst->root.dnode_root; | |
89 | ||
90 | if (dst_dnode) | |
91 | yang_dnode_free(dst_dnode); | |
92 | ||
93 | /* Not using nb_config_replace as the oper ds does not contain nb_config | |
94 | */ | |
95 | dst_dnode = yang_dnode_dup(src_dnode); | |
96 | if (dst->config_ds) | |
97 | dst->root.cfg_root->dnode = dst_dnode; | |
98 | else | |
99 | dst->root.dnode_root = dst_dnode; | |
100 | ||
74335ceb YR |
101 | if (src->ds_id == MGMTD_DS_CANDIDATE) { |
102 | /* | |
103 | * Drop the changes in scratch-buffer. | |
104 | */ | |
105 | MGMTD_DS_DBG("Emptying Candidate Scratch buffer!"); | |
106 | nb_config_diff_del_changes(&src->root.cfg_root->cfg_chgs); | |
107 | } | |
108 | ||
1c84efe4 CH |
109 | /* TODO: Update the versions if nb_config present */ |
110 | ||
111 | return 0; | |
112 | } | |
113 | ||
114 | static int mgmt_ds_merge_src_with_dst_ds(struct mgmt_ds_ctx *src, | |
115 | struct mgmt_ds_ctx *dst) | |
116 | { | |
117 | int ret; | |
118 | struct lyd_node **dst_dnode, *src_dnode; | |
1c84efe4 CH |
119 | |
120 | if (!src || !dst) | |
121 | return -1; | |
122 | ||
123 | MGMTD_DS_DBG("Merging DS %d with %d", dst->ds_id, src->ds_id); | |
124 | ||
125 | src_dnode = src->config_ds ? src->root.cfg_root->dnode | |
126 | : dst->root.dnode_root; | |
127 | dst_dnode = dst->config_ds ? &dst->root.cfg_root->dnode | |
128 | : &dst->root.dnode_root; | |
129 | ret = lyd_merge_siblings(dst_dnode, src_dnode, 0); | |
130 | if (ret != 0) { | |
131 | MGMTD_DS_ERR("lyd_merge() failed with err %d", ret); | |
132 | return ret; | |
133 | } | |
134 | ||
74335ceb YR |
135 | if (src->ds_id == MGMTD_DS_CANDIDATE) { |
136 | /* | |
137 | * Drop the changes in scratch-buffer. | |
138 | */ | |
139 | MGMTD_DS_DBG("Emptying Candidate Scratch buffer!"); | |
140 | nb_config_diff_del_changes(&src->root.cfg_root->cfg_chgs); | |
141 | } | |
142 | ||
1c84efe4 CH |
143 | return 0; |
144 | } | |
145 | ||
146 | static int mgmt_ds_load_cfg_from_file(const char *filepath, | |
147 | struct lyd_node **dnode) | |
148 | { | |
149 | LY_ERR ret; | |
150 | ||
151 | *dnode = NULL; | |
152 | ret = lyd_parse_data_path(ly_native_ctx, filepath, LYD_JSON, | |
153 | LYD_PARSE_STRICT, 0, dnode); | |
154 | ||
155 | if (ret != LY_SUCCESS) { | |
156 | if (*dnode) | |
157 | yang_dnode_free(*dnode); | |
158 | return -1; | |
159 | } | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
74335ceb YR |
164 | void mgmt_ds_reset_candidate(void) |
165 | { | |
166 | struct lyd_node *dnode = mm->candidate_ds->root.cfg_root->dnode; | |
83b78f43 | 167 | |
74335ceb YR |
168 | if (dnode) |
169 | yang_dnode_free(dnode); | |
170 | ||
171 | dnode = yang_dnode_new(ly_native_ctx, true); | |
172 | mm->candidate_ds->root.cfg_root->dnode = dnode; | |
173 | } | |
174 | ||
175 | ||
1c84efe4 CH |
176 | int mgmt_ds_init(struct mgmt_master *mm) |
177 | { | |
1c84efe4 CH |
178 | if (mgmt_ds_mm || mm->running_ds || mm->candidate_ds || mm->oper_ds) |
179 | assert(!"MGMTD: Call ds_init only once!"); | |
180 | ||
181 | /* Use Running DS from NB module??? */ | |
182 | if (!running_config) | |
183 | assert(!"MGMTD: Call ds_init after frr_init only!"); | |
184 | ||
1c84efe4 CH |
185 | running.root.cfg_root = running_config; |
186 | running.config_ds = true; | |
187 | running.ds_id = MGMTD_DS_RUNNING; | |
188 | ||
189 | candidate.root.cfg_root = nb_config_dup(running.root.cfg_root); | |
190 | candidate.config_ds = true; | |
191 | candidate.ds_id = MGMTD_DS_CANDIDATE; | |
192 | ||
74335ceb YR |
193 | /* |
194 | * Redirect lib/vty candidate-config datastore to the global candidate | |
195 | * config Ds on the MGMTD process. | |
196 | */ | |
197 | vty_mgmt_candidate_config = candidate.root.cfg_root; | |
198 | ||
1c84efe4 CH |
199 | oper.root.dnode_root = yang_dnode_new(ly_native_ctx, true); |
200 | oper.config_ds = false; | |
201 | oper.ds_id = MGMTD_DS_OPERATIONAL; | |
202 | ||
203 | mm->running_ds = &running; | |
204 | mm->candidate_ds = &candidate; | |
205 | mm->oper_ds = &oper; | |
206 | mgmt_ds_mm = mm; | |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
211 | void mgmt_ds_destroy(void) | |
212 | { | |
1c84efe4 CH |
213 | /* |
214 | * TODO: Free the datastores. | |
215 | */ | |
1c84efe4 CH |
216 | } |
217 | ||
218 | struct mgmt_ds_ctx *mgmt_ds_get_ctx_by_id(struct mgmt_master *mm, | |
ef43a632 | 219 | Mgmtd__DatastoreId ds_id) |
1c84efe4 CH |
220 | { |
221 | switch (ds_id) { | |
222 | case MGMTD_DS_CANDIDATE: | |
223 | return (mm->candidate_ds); | |
224 | case MGMTD_DS_RUNNING: | |
225 | return (mm->running_ds); | |
226 | case MGMTD_DS_OPERATIONAL: | |
227 | return (mm->oper_ds); | |
228 | case MGMTD_DS_NONE: | |
ef43a632 CH |
229 | case MGMTD__DATASTORE_ID__STARTUP_DS: |
230 | case _MGMTD__DATASTORE_ID_IS_INT_SIZE: | |
1c84efe4 CH |
231 | return 0; |
232 | } | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
237 | bool mgmt_ds_is_config(struct mgmt_ds_ctx *ds_ctx) | |
238 | { | |
239 | if (!ds_ctx) | |
240 | return false; | |
241 | ||
242 | return ds_ctx->config_ds; | |
243 | } | |
244 | ||
245 | int mgmt_ds_read_lock(struct mgmt_ds_ctx *ds_ctx) | |
246 | { | |
247 | if (!ds_ctx) | |
248 | return EINVAL; | |
249 | if (ds_ctx->lock < 0) | |
250 | return EBUSY; | |
251 | ++ds_ctx->lock; | |
252 | return 0; | |
253 | } | |
254 | ||
255 | int mgmt_ds_write_lock(struct mgmt_ds_ctx *ds_ctx) | |
256 | { | |
257 | if (!ds_ctx) | |
258 | return EINVAL; | |
259 | if (ds_ctx->lock != 0) | |
260 | return EBUSY; | |
261 | ds_ctx->lock = -1; | |
262 | return 0; | |
263 | } | |
264 | ||
265 | int mgmt_ds_unlock(struct mgmt_ds_ctx *ds_ctx) | |
266 | { | |
267 | if (!ds_ctx) | |
268 | return EINVAL; | |
269 | if (ds_ctx->lock > 0) | |
270 | --ds_ctx->lock; | |
271 | else if (ds_ctx->lock < 0) { | |
272 | assert(ds_ctx->lock == -1); | |
273 | ds_ctx->lock = 0; | |
274 | } else { | |
275 | assert(ds_ctx->lock != 0); | |
276 | return EINVAL; | |
277 | } | |
278 | return 0; | |
279 | } | |
280 | ||
1c84efe4 CH |
281 | int mgmt_ds_copy_dss(struct mgmt_ds_ctx *src_ds_ctx, |
282 | struct mgmt_ds_ctx *dst_ds_ctx, bool updt_cmt_rec) | |
283 | { | |
284 | if (mgmt_ds_replace_dst_with_src_ds(src_ds_ctx, dst_ds_ctx) != 0) | |
285 | return -1; | |
286 | ||
74335ceb YR |
287 | if (updt_cmt_rec && dst_ds_ctx->ds_id == MGMTD_DS_RUNNING) |
288 | mgmt_history_new_record(dst_ds_ctx); | |
289 | ||
1c84efe4 CH |
290 | return 0; |
291 | } | |
292 | ||
293 | int mgmt_ds_dump_ds_to_file(char *file_name, struct mgmt_ds_ctx *ds_ctx) | |
294 | { | |
295 | struct ly_out *out; | |
296 | int ret = 0; | |
297 | ||
298 | if (ly_out_new_filepath(file_name, &out) == LY_SUCCESS) { | |
299 | ret = mgmt_ds_dump_in_memory(ds_ctx, "", LYD_JSON, out); | |
300 | ly_out_free(out, NULL, 0); | |
301 | } | |
302 | ||
303 | return ret; | |
304 | } | |
305 | ||
306 | struct nb_config *mgmt_ds_get_nb_config(struct mgmt_ds_ctx *ds_ctx) | |
307 | { | |
308 | if (!ds_ctx) | |
309 | return NULL; | |
310 | ||
311 | return ds_ctx->config_ds ? ds_ctx->root.cfg_root : NULL; | |
312 | } | |
313 | ||
314 | static int mgmt_walk_ds_nodes( | |
315 | struct mgmt_ds_ctx *ds_ctx, char *base_xpath, | |
316 | struct lyd_node *base_dnode, | |
317 | void (*mgmt_ds_node_iter_fn)(struct mgmt_ds_ctx *ds_ctx, char *xpath, | |
318 | struct lyd_node *node, | |
319 | struct nb_node *nb_node, void *ctx), | |
320 | void *ctx, char *xpaths[], int *num_nodes, bool childs_as_well, | |
321 | bool alloc_xp_copy) | |
322 | { | |
323 | uint32_t indx; | |
324 | char *xpath, *xpath_buf, *iter_xp; | |
325 | int ret, num_left = 0, num_found = 0; | |
326 | struct lyd_node *dnode; | |
327 | struct nb_node *nbnode; | |
328 | bool alloc_xp = false; | |
329 | ||
330 | if (xpaths) | |
331 | assert(num_nodes); | |
332 | ||
333 | if (num_nodes && !*num_nodes) | |
334 | return 0; | |
335 | ||
336 | if (num_nodes) { | |
337 | num_left = *num_nodes; | |
338 | MGMTD_DS_DBG(" -- START: num_left:%d", num_left); | |
339 | *num_nodes = 0; | |
340 | } | |
341 | ||
342 | MGMTD_DS_DBG(" -- START: Base: %s", base_xpath); | |
343 | ||
344 | if (!base_dnode) | |
345 | base_dnode = yang_dnode_get( | |
346 | ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode | |
347 | : ds_ctx->root.dnode_root, | |
348 | base_xpath); | |
349 | if (!base_dnode) | |
350 | return -1; | |
351 | ||
352 | if (mgmt_ds_node_iter_fn) { | |
353 | /* | |
354 | * In case the caller is interested in getting a copy | |
355 | * of the xpath for themselves (by setting | |
356 | * 'alloc_xp_copy' to 'true') we make a copy for the | |
357 | * caller and pass it. Else we pass the original xpath | |
358 | * buffer. | |
359 | * | |
360 | * NOTE: In such case caller will have to take care of | |
361 | * the copy later. | |
362 | */ | |
363 | iter_xp = alloc_xp_copy ? strdup(base_xpath) : base_xpath; | |
364 | ||
365 | nbnode = (struct nb_node *)base_dnode->schema->priv; | |
366 | (*mgmt_ds_node_iter_fn)(ds_ctx, iter_xp, base_dnode, nbnode, | |
367 | ctx); | |
368 | } | |
369 | ||
370 | if (num_nodes) { | |
371 | (*num_nodes)++; | |
372 | num_left--; | |
373 | } | |
374 | ||
74335ceb YR |
375 | /* |
376 | * If the base_xpath points to a leaf node, or we don't need to | |
377 | * visit any children we can skip the tree walk. | |
378 | */ | |
379 | if (!childs_as_well || base_dnode->schema->nodetype & LYD_NODE_TERM) | |
1c84efe4 CH |
380 | return 0; |
381 | ||
382 | indx = 0; | |
383 | LY_LIST_FOR (lyd_child(base_dnode), dnode) { | |
384 | assert(dnode->schema && dnode->schema->priv); | |
1c84efe4 CH |
385 | |
386 | xpath = NULL; | |
387 | if (xpaths) { | |
388 | if (!xpaths[*num_nodes]) { | |
389 | alloc_xp = true; | |
390 | xpaths[*num_nodes] = | |
391 | (char *)calloc(1, MGMTD_MAX_XPATH_LEN); | |
392 | } | |
393 | xpath = lyd_path(dnode, LYD_PATH_STD, | |
394 | xpaths[*num_nodes], | |
395 | MGMTD_MAX_XPATH_LEN); | |
396 | } else { | |
397 | alloc_xp = true; | |
398 | xpath_buf = (char *)calloc(1, MGMTD_MAX_XPATH_LEN); | |
399 | (void) lyd_path(dnode, LYD_PATH_STD, xpath_buf, | |
400 | MGMTD_MAX_XPATH_LEN); | |
401 | xpath = xpath_buf; | |
402 | } | |
403 | ||
404 | assert(xpath); | |
405 | MGMTD_DS_DBG(" -- XPATH: %s", xpath); | |
406 | ||
1c84efe4 CH |
407 | if (num_nodes) |
408 | num_found = num_left; | |
409 | ||
410 | ret = mgmt_walk_ds_nodes(ds_ctx, xpath, dnode, | |
411 | mgmt_ds_node_iter_fn, ctx, | |
412 | xpaths ? &xpaths[*num_nodes] : NULL, | |
413 | num_nodes ? &num_found : NULL, | |
414 | childs_as_well, alloc_xp_copy); | |
415 | ||
416 | if (num_nodes) { | |
417 | num_left -= num_found; | |
418 | (*num_nodes) += num_found; | |
419 | } | |
420 | ||
421 | if (alloc_xp) | |
422 | free(xpath); | |
423 | ||
424 | if (ret != 0) | |
425 | break; | |
426 | ||
427 | indx++; | |
428 | } | |
429 | ||
430 | ||
431 | if (num_nodes) { | |
432 | MGMTD_DS_DBG(" -- END: *num_nodes:%d, num_left:%d", *num_nodes, | |
433 | num_left); | |
434 | } | |
435 | ||
436 | return 0; | |
437 | } | |
438 | ||
439 | int mgmt_ds_lookup_data_nodes(struct mgmt_ds_ctx *ds_ctx, const char *xpath, | |
440 | char *dxpaths[], int *num_nodes, | |
441 | bool get_childs_as_well, bool alloc_xp_copy) | |
442 | { | |
443 | char base_xpath[MGMTD_MAX_XPATH_LEN]; | |
444 | ||
445 | if (!ds_ctx || !num_nodes) | |
446 | return -1; | |
447 | ||
448 | if (xpath[0] == '.' && xpath[1] == '/') | |
449 | xpath += 2; | |
450 | ||
451 | strlcpy(base_xpath, xpath, sizeof(base_xpath)); | |
452 | mgmt_remove_trailing_separator(base_xpath, '/'); | |
453 | ||
454 | return (mgmt_walk_ds_nodes(ds_ctx, base_xpath, NULL, NULL, NULL, | |
455 | dxpaths, num_nodes, get_childs_as_well, | |
456 | alloc_xp_copy)); | |
457 | } | |
458 | ||
459 | struct lyd_node *mgmt_ds_find_data_node_by_xpath(struct mgmt_ds_ctx *ds_ctx, | |
460 | const char *xpath) | |
461 | { | |
462 | if (!ds_ctx) | |
463 | return NULL; | |
464 | ||
465 | return yang_dnode_get(ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode | |
466 | : ds_ctx->root.dnode_root, | |
467 | xpath); | |
468 | } | |
469 | ||
470 | int mgmt_ds_delete_data_nodes(struct mgmt_ds_ctx *ds_ctx, const char *xpath) | |
471 | { | |
472 | struct nb_node *nb_node; | |
473 | struct lyd_node *dnode, *dep_dnode; | |
474 | char dep_xpath[XPATH_MAXLEN]; | |
475 | ||
476 | if (!ds_ctx) | |
477 | return -1; | |
478 | ||
479 | nb_node = nb_node_find(xpath); | |
480 | ||
481 | dnode = yang_dnode_get(ds_ctx->config_ds | |
482 | ? ds_ctx->root.cfg_root->dnode | |
483 | : ds_ctx->root.dnode_root, | |
484 | xpath); | |
485 | ||
486 | if (!dnode) | |
487 | /* | |
488 | * Return a special error code so the caller can choose | |
489 | * whether to ignore it or not. | |
490 | */ | |
491 | return NB_ERR_NOT_FOUND; | |
492 | /* destroy dependant */ | |
93d4e355 | 493 | if (nb_node && nb_node->dep_cbs.get_dependant_xpath) { |
1c84efe4 CH |
494 | nb_node->dep_cbs.get_dependant_xpath(dnode, dep_xpath); |
495 | ||
496 | dep_dnode = yang_dnode_get( | |
497 | ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode | |
93d4e355 | 498 | : ds_ctx->root.dnode_root, |
1c84efe4 CH |
499 | dep_xpath); |
500 | if (dep_dnode) | |
501 | lyd_free_tree(dep_dnode); | |
502 | } | |
503 | lyd_free_tree(dnode); | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
508 | int mgmt_ds_load_config_from_file(struct mgmt_ds_ctx *dst, | |
509 | const char *file_path, bool merge) | |
510 | { | |
511 | struct lyd_node *iter; | |
512 | struct mgmt_ds_ctx parsed; | |
513 | ||
514 | if (!dst) | |
515 | return -1; | |
516 | ||
517 | if (mgmt_ds_load_cfg_from_file(file_path, &iter) != 0) { | |
518 | MGMTD_DS_ERR("Failed to load config from the file %s", | |
519 | file_path); | |
520 | return -1; | |
521 | } | |
522 | ||
523 | parsed.root.cfg_root = nb_config_new(iter); | |
524 | parsed.config_ds = true; | |
525 | parsed.ds_id = dst->ds_id; | |
526 | ||
527 | if (merge) | |
528 | mgmt_ds_merge_src_with_dst_ds(&parsed, dst); | |
529 | else | |
530 | mgmt_ds_replace_dst_with_src_ds(&parsed, dst); | |
531 | ||
532 | nb_config_free(parsed.root.cfg_root); | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
537 | int mgmt_ds_iter_data(struct mgmt_ds_ctx *ds_ctx, char *base_xpath, | |
538 | void (*mgmt_ds_node_iter_fn)(struct mgmt_ds_ctx *ds_ctx, | |
539 | char *xpath, | |
540 | struct lyd_node *node, | |
541 | struct nb_node *nb_node, | |
542 | void *ctx), | |
543 | void *ctx, bool alloc_xp_copy) | |
544 | { | |
545 | int ret; | |
546 | char xpath[MGMTD_MAX_XPATH_LEN]; | |
547 | struct lyd_node *base_dnode = NULL; | |
548 | struct lyd_node *node; | |
549 | ||
550 | if (!ds_ctx) | |
551 | return -1; | |
552 | ||
553 | mgmt_remove_trailing_separator(base_xpath, '/'); | |
554 | ||
555 | strlcpy(xpath, base_xpath, sizeof(xpath)); | |
556 | ||
557 | MGMTD_DS_DBG(" -- START DS walk for DSid: %d", ds_ctx->ds_id); | |
558 | ||
559 | /* If the base_xpath is empty then crawl the sibblings */ | |
560 | if (xpath[0] == '\0') { | |
561 | base_dnode = ds_ctx->config_ds ? ds_ctx->root.cfg_root->dnode | |
562 | : ds_ctx->root.dnode_root; | |
563 | ||
564 | /* get first top-level sibling */ | |
565 | while (base_dnode->parent) | |
566 | base_dnode = lyd_parent(base_dnode); | |
567 | ||
568 | while (base_dnode->prev->next) | |
569 | base_dnode = base_dnode->prev; | |
570 | ||
571 | LY_LIST_FOR (base_dnode, node) { | |
572 | ret = mgmt_walk_ds_nodes( | |
573 | ds_ctx, xpath, node, mgmt_ds_node_iter_fn, | |
574 | ctx, NULL, NULL, true, alloc_xp_copy); | |
575 | } | |
576 | } else | |
577 | ret = mgmt_walk_ds_nodes(ds_ctx, xpath, base_dnode, | |
578 | mgmt_ds_node_iter_fn, ctx, NULL, NULL, | |
579 | true, alloc_xp_copy); | |
580 | ||
581 | return ret; | |
582 | } | |
583 | ||
584 | void mgmt_ds_dump_tree(struct vty *vty, struct mgmt_ds_ctx *ds_ctx, | |
585 | const char *xpath, FILE *f, LYD_FORMAT format) | |
586 | { | |
587 | struct ly_out *out; | |
588 | char *str; | |
589 | char base_xpath[MGMTD_MAX_XPATH_LEN] = {0}; | |
590 | ||
591 | if (!ds_ctx) { | |
592 | vty_out(vty, " >>>>> Datastore Not Initialized!\n"); | |
593 | return; | |
594 | } | |
595 | ||
596 | if (xpath) { | |
597 | strlcpy(base_xpath, xpath, MGMTD_MAX_XPATH_LEN); | |
598 | mgmt_remove_trailing_separator(base_xpath, '/'); | |
599 | } | |
600 | ||
601 | if (f) | |
602 | ly_out_new_file(f, &out); | |
603 | else | |
604 | ly_out_new_memory(&str, 0, &out); | |
605 | ||
606 | mgmt_ds_dump_in_memory(ds_ctx, base_xpath, format, out); | |
607 | ||
608 | if (!f) | |
609 | vty_out(vty, "%s\n", str); | |
610 | ||
611 | ly_out_free(out, NULL, 0); | |
612 | } | |
613 | ||
614 | void mgmt_ds_status_write_one(struct vty *vty, struct mgmt_ds_ctx *ds_ctx) | |
615 | { | |
616 | if (!ds_ctx) { | |
617 | vty_out(vty, " >>>>> Datastore Not Initialized!\n"); | |
618 | return; | |
619 | } | |
620 | ||
621 | vty_out(vty, " DS: %s\n", mgmt_ds_id2name(ds_ctx->ds_id)); | |
622 | vty_out(vty, " DS-Hndl: \t\t\t%p\n", ds_ctx); | |
623 | vty_out(vty, " Config: \t\t\t%s\n", | |
624 | ds_ctx->config_ds ? "True" : "False"); | |
625 | } | |
626 | ||
627 | void mgmt_ds_status_write(struct vty *vty) | |
628 | { | |
629 | vty_out(vty, "MGMTD Datastores\n"); | |
630 | ||
631 | mgmt_ds_status_write_one(vty, mgmt_ds_mm->running_ds); | |
632 | ||
633 | mgmt_ds_status_write_one(vty, mgmt_ds_mm->candidate_ds); | |
634 | ||
635 | mgmt_ds_status_write_one(vty, mgmt_ds_mm->oper_ds); | |
636 | } |