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* Add multiple yang support also for obsolete versions

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* This means that files and datastores supporting modstate also looks for deleted or updated yang modules.
  * A stricter binding which gives error if loading outdated YANG file does not exist.
* Stricter yang checks: you cannot do get-config on datastores that have obsolete YANG
* Added xerr output parameter to `xmldb_get0()`
This commit is contained in:
Olof hagsand 2021-03-16 15:25:34 +01:00
parent d542cd5530
commit 8469a0962e
20 changed files with 328 additions and 118 deletions
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78
lib/src/clixon_yang_module.c
View file

@ -86,6 +86,7 @@ modstate_diff_t *
modstate_diff_new(void)
{
modstate_diff_t *md;
if ((md = malloc(sizeof(modstate_diff_t))) == NULL){
clicon_err(OE_UNIX, errno, "malloc");
return NULL;
@ -582,6 +583,83 @@ yang_find_module_by_namespace(yang_stmt *yspec,
return ymod;
}
/*! Given a yang spec, a namespace and revision, return yang module
*
* @param[in] yspec A yang specification
* @param[in] ns Namespace
* @param[in] rev Revision
* @retval ymod Yang module statement if found
* @retval NULL not found
* @see yang_find_module_by_namespace
* @note a module may have many revisions, but only the first is significant
*/
yang_stmt *
yang_find_module_by_namespace_revision(yang_stmt *yspec,
const char *ns,
const char *rev)
{
yang_stmt *ymod = NULL;
yang_stmt *yrev;
char *rev1;
if (ns == NULL || rev == NULL){
clicon_err(OE_CFG, EINVAL, "No ns or rev");
goto done;
}
while ((ymod = yn_each(yspec, ymod)) != NULL) {
if (yang_find(ymod, Y_NAMESPACE, ns) != NULL)
/* Get FIRST revision */
if ((yrev = yang_find(ymod, Y_REVISION, NULL)) != NULL){
rev1 = yang_argument_get(yrev);
if (strcmp(rev, rev1) == 0)
break; /* return this ymod */
}
}
done:
return ymod;
}
/*! Given a yang spec, name and revision, return yang module
*
* @param[in] yspec A yang specification
* @param[in] name Name
* @param[in] rev Revision
* @retval ymod Yang module statement if found
* @retval NULL not found
* @see yang_find_module_by_namespace
* @note a module may have many revisions, but only the first is significant
*/
yang_stmt *
yang_find_module_by_name_revision(yang_stmt *yspec,
const char *name,
const char *rev)
{
yang_stmt *ymod = NULL;
yang_stmt *yrev;
char *rev1;
if (name == NULL){
clicon_err(OE_CFG, EINVAL, "No ns or rev");
goto done;
}
while ((ymod = yn_each(yspec, ymod)) != NULL) {
if (yang_keyword_get(ymod) != Y_MODULE)
continue;
if (strcmp(yang_argument_get(ymod), name) != 0)
continue;
if (rev == NULL)
break; /* Matching revision is NULL, match that */
/* Get FIRST revision */
if ((yrev = yang_find(ymod, Y_REVISION, NULL)) != NULL){
rev1 = yang_argument_get(yrev);
if (strcmp(rev, rev1) == 0)
break; /* return this ymod */
}
}
done:
return ymod;
}
/*! Given a yang spec and a module name, return yang module or submodule
*
* @param[in] yspec A yang specification