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Refactored yang schema code

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YANG Deprecated:  `CLICON_YANG_SCHEMA_MOUNT_SHARE` due to yang domain support
This commit is contained in:
Olof hagsand 2024-12-11 19:38:00 +01:00
parent b1d969e42b
commit 6c73c36fb7
8 changed files with 87 additions and 41 deletions
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97
lib/src/clixon_yang_schema_mount.c
View file

@ -53,6 +53,10 @@
* The API handles the relation between yext -->* ymnt -->* xmnt
* Structure:
*
* ymounts(top)
* |
* ydomain*
* |
* yspec0(1) xtop(1)
* | | (xpath)
* ymnt(*) <-- xmnt(*)
@ -64,11 +68,11 @@
* The calls in this code are:
* - yang_schema_mount_point(): Is ymnt a yang mount-point? (ymnt)
* - yang_mount_get(): ymnt + xpath -> yspec
* XXXX - yang_mount_get(): ymnt + xpath -> yspec
* - yang_mount_set(): ymnt
* - xml_yang_mount_get(): xmnt-> yspec
* - xml_yang_mount_set(): xmnt -> yspec
* - yang_mount_get_yspec_any(): ymnt -> yspec
* - yang_mounto_freeall(): ymnt-> free cvec
* - yang_mount_xmnt2ymnt_xpath(): xmnt -> ymnt + xpath
* - yang_mount_xtop2xmnt(): top-level xml -> xmnt vector
* - yang_mount_yspec2ymnt(): top-level yspec -> ymnt vector NOTUSED
@ -183,11 +187,13 @@ yang_schema_mount_point(yang_stmt *y)
/*! Get yangspec mount-point
*
* @param[in] y Yang container/list containing unknown node
* @param[in] ys Yang container/list containing unknown node
* @param[in] xpath Key for yspec on y
* @param[out] yspec YANG stmt spec
* @retval 0 OK
* @retval -1 Error
* With domains it is assumed an xpath is unique across domains, which is true if the xpath
* has eg a list name which is unique. But there could be cases where this is not true.
*/
int
yang_mount_get(yang_stmt *ys,
@ -721,7 +727,7 @@ yang_schema_find_share(clixon_handle h,
cg_var *cv;
cxobj *xroot;
cxobj *xmnt;
cxobj *xylib;
cxobj *xylib = NULL;
int config = 1;
int ret;
@ -735,7 +741,10 @@ yang_schema_find_share(clixon_handle h,
xmnt = cv_void_get(cv);
if (xmnt == xt)
continue;
xylib = NULL;
if (xylib){
xml_free(xylib);
xylib = NULL;
}
/* Get xyanglib */
if (clixon_plugin_yang_mount_all(h, xmnt, &config, NULL, &xylib) < 0)
goto done;
@ -753,44 +762,41 @@ yang_schema_find_share(clixon_handle h,
}
retval = 0;
done:
if (xylib)
xml_free(xylib);
if (cvv)
cvec_free(cvv);
return retval;
}
/*! Get yanglib from user plugin callback, parse it and mount it
/*! Given yanglib, mount it, potentially create a new yspec, and parse all its yangs
*
* Optionally check for shared yspec
* @param[in] h Clixon handle
* @param[in] xt XML tree node
* @retval 1 OK
* @retval 0 No yanglib or problem when parsing yanglib
* @retval -1 Error
* @param[in] h Clixon handle
* @param[in] xt XML tree node
* @param[in] xyanglib XML yang-lib
* @retval 1 OK
* @retval 0 No yanglib or problem when parsing yanglib
* @retval -1 Error
*/
int
yang_schema_yanglib_parse_mount(clixon_handle h,
cxobj *xt)
yang_schema_yanglib_mount_parse(clixon_handle h,
cxobj *xt,
cxobj *xyanglib,
yang_stmt **yspecp)
{
int retval = -1;
cxobj *xyanglib = NULL;
cxobj *xb;
char *domain = NULL;
yang_stmt *ymounts;
yang_stmt *ydomain;
yang_stmt *yspec0 = NULL;
yang_stmt *yspec1 = NULL;
char *xpath = NULL;
char *domain = NULL;
cbuf *cb = NULL;
int ret;
static unsigned int nr = 0;
/* 1. Get modstate (xyanglib) of node: xyanglib, by querying backend state (via callback)
* XXX this xyanglib is not proper RFC8525, submodules appear as modules WHY?
*/
if (clixon_plugin_yang_mount_all(h, xt, NULL, NULL, &xyanglib) < 0)
goto done;
if (xyanglib == NULL)
goto anydata;
if ((xb = xpath_first(xyanglib, NULL, "module-set/name")) != NULL)
domain = xml_body(xb);
if (domain == NULL){
@ -813,10 +819,8 @@ yang_schema_yanglib_parse_mount(clixon_handle h,
goto done;
}
/* Optimization: find equal yspec from other mount-point */
if (clicon_option_bool(h, "CLICON_YANG_SCHEMA_MOUNT_SHARE")) {
if (yang_schema_find_share(h, xt, xyanglib, &yspec0) < 0)
goto done;
}
if (yang_schema_find_share(h, xt, xyanglib, &yspec0) < 0)
goto done;
if ((cb = cbuf_new()) == NULL){
clixon_err(OE_YANG, errno, "cbuf_new");
goto done;
@ -835,15 +839,54 @@ yang_schema_yanglib_parse_mount(clixon_handle h,
}
if (xml_yang_mount_set(h, xt, yspec1) < 0)
goto done;
if (yspecp)
*yspecp = yspec1;
yspec1 = NULL;
retval = 1;
done:
if (yspec1)
ys_free(yspec1);
if (cb)
cbuf_free(cb);
if (xpath)
free(xpath);
if (yspec1)
ys_free(yspec1);
return retval;
anydata:
retval = 0;
goto done;
}
/*! Get yanglib from user plugin callback, create yspec, mount it and parse all yangs
*
* Optionally check for shared yspec
* @param[in] h Clixon handle
* @param[in] xt XML tree node
* @retval 1 OK
* @retval 0 No yanglib or problem when parsing yanglib
* @retval -1 Error
*/
int
yang_schema_yanglib_get_mount_parse(clixon_handle h,
cxobj *xt)
{
int retval = -1;
cxobj *xyanglib = NULL;
int ret;
clixon_debug(CLIXON_DBG_APP, "");
/* 1. Get modstate (xyanglib) of node: xyanglib, by querying backend state (via callback)
* XXX this xyanglib is not proper RFC8525, submodules appear as modules WHY?
*/
if (clixon_plugin_yang_mount_all(h, xt, NULL, NULL, &xyanglib) < 0)
goto done;
if (xyanglib == NULL)
goto anydata;
if ((ret = yang_schema_yanglib_mount_parse(h, xt, xyanglib, NULL)) < 0)
goto done;
if (ret == 0)
goto anydata;
retval = 1;
done:
if (xyanglib)
xml_free(xyanglib);
return retval;