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* JSON encoding of YANG metadata according to RFC 7952

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* XML -> JSON translation
This commit is contained in:
Olof hagsand 2021-08-17 15:15:37 +02:00
parent 76e59873c2
commit 6bf3112fe7
8 changed files with 145 additions and 29 deletions
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47
lib/src/clixon_yang_module.c
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@ -690,6 +690,7 @@ yang_find_module_by_name(yang_stmt *yspec,
* as described in Section 3.
* Note this is called by the module using the extension md:annotate, not by
* ietf-yang-metadata.yang
* @see yang_metadata_annotation_check
*/
static int
ietf_yang_metadata_extension_cb(clicon_handle h,
@ -700,13 +701,15 @@ ietf_yang_metadata_extension_cb(clicon_handle h,
char *extname;
char *modname;
yang_stmt *ymod;
char *name;
ymod = ys_module(yext);
modname = yang_argument_get(ymod);
extname = yang_argument_get(yext);
if (strcmp(modname, "ietf-yang-metadata") != 0 || strcmp(extname, "annotation") != 0)
goto ok;
clicon_debug(1, "%s Enabled extension:%s:%s", __FUNCTION__, modname, extname);
name = cv_string_get(yang_cv_get(ys));
clicon_debug(1, "%s Enabled extension:%s:%s:%s", __FUNCTION__, modname, extname, name);
/* XXX Nothing yet - this should signal that xml attribute annotations are allowed
* Possibly, add an "annotation" YANG node.
*/
@ -716,6 +719,48 @@ ietf_yang_metadata_extension_cb(clicon_handle h,
return retval;
}
/*! Check annotation extension
*
* @param[in] xa XML attribute
* @param[in] ys YANG something
* @param[out] ismeta Set to 1 if this is an annotation
* @retval 0 OK
* @retval -1 Error
* @see ietf_yang_metadata_extension_cb
* XXX maybe a cache would be appropriate?
* XXX: return type?
*/
int
yang_metadata_annotation_check(cxobj *xa,
yang_stmt *ymod,
int *ismeta)
{
int retval = -1;
yang_stmt *yma = NULL;
char *name;
cg_var *cv;
/* Loop through annotations */
while ((yma = yn_each(ymod, yma)) != NULL){
/* Assume here md:annotation is written using canonical prefix */
if (yang_keyword_get(yma) != Y_UNKNOWN)
continue;
if (strcmp(yang_argument_get(yma), "md:annotation") != 0)
continue;
if ((cv = yang_cv_get(yma)) != NULL &&
(name = cv_string_get(cv)) != NULL){
if (strcmp(name, xml_name(xa)) == 0){
/* XXX: yang_find(yma,Y_TYPE,0) */
*ismeta = 1;
break;
}
}
}
retval = 0;
// done:
return retval;
}
/*! In case ietf-yang-metadata is loaded by application, handle annotation extension
* Consider moving fn
*/