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* More YANG extension functionality,

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* See [Augment auto-cli for hiding/modifying cli syntax #156](https://github.com/clicon/clixon/issues/156) and [hiding auto-generated CLI entries #153](https://github.com/clicon/clixon/issues/153)
  * Extensions can be used in augmentations
  * Extension `autocli-op` has been added to add "hidden" commands in the autocli
  * Documentation: https://clixon-docs.readthedocs.io/en/latest/misc.html#extensions
This commit is contained in:
Olof hagsand 2020-12-08 17:21:37 +01:00
parent e1b94d94d2
commit b8641f30bd
14 changed files with 547 additions and 50 deletions
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63
lib/src/clixon_yang.c
View file

@ -985,8 +985,8 @@ yang_find_schemanode(yang_stmt *yn,
* @retval NULL No prefix found. This is an error
* @retval prefix OK: Prefix as char* pointer into yang tree
* @code
* char *myprefix;
* myprefix = yang_find_myprefix(ys);
* char *myprefix;
* myprefix = yang_find_myprefix(ys);
* @endcode
*/
char *
@ -3236,6 +3236,65 @@ yang_anydata_add(yang_stmt *yp,
return ys;
}
/*! Find extension argument and return extension argument value
* @param[in] ys Yang statement
* @param[in] name Name of the extension
* @param[in] ns The namespace
* @param[out] value clispec operator (hide/none) - direct pointer into yang, dont free
* This is for extensions with an argument
* @code
* char *value = NULL;
* if (yang_extension_value(ys, "mymode", "urn:example:lib", &value) < 0)
* err;
* if (value != NULL){
* // use extension value
* }
* @endcode
*/
int
yang_extension_value(yang_stmt *ys,
char *name,
char *ns,
char **value)
{
int retval = -1;
yang_stmt *yext;
yang_stmt *ymod;
cg_var *cv;
char *prefix = NULL;
cbuf *cb = NULL;
if ((cb = cbuf_new()) == NULL){
clicon_err(OE_UNIX, errno, "cbuf_new");
goto done;
}
yext = NULL; /* This loop gets complicated in trhe case the extension is augmented */
while ((yext = yn_each(ys, yext)) != NULL) {
if (yang_keyword_get(yext) != Y_UNKNOWN)
continue;
if ((ymod = ys_module(yext)) == NULL)
continue;
if (yang_find_prefix_by_namespace(ymod, ns, &prefix) < 0)
goto ok;
cprintf(cb, "%s:%s", prefix, name);
if (strcmp(yang_argument_get(yext), cbuf_get(cb)) != 0)
continue;
break;
}
if (yext != NULL){ /* Found */
if ((cv = yang_cv_get(yext)) == NULL)
goto ok;
if (value)
*value = cv_string_get(cv);
}
ok:
retval = 0;
done:
if (cb)
cbuf_free(cb);
return retval;
}
#ifdef XML_EXPLICIT_INDEX
/*! Mark element as search_index in list
* @retval 0 OK