- Rewrite of netconf get/get-config code

- Unified get and get-config code to single function get_common
  - Integrated list-pagination code
  - Moved get code to new files backend_get.[ch]
This commit is contained in:
Olof hagsand 2021-08-22 12:41:45 +02:00
parent b03cf426a4
commit c9843b34a6
11 changed files with 1382 additions and 1246 deletions

View file

@ -688,6 +688,7 @@ xml_diff(yang_stmt *yspec,
}
/*! Prune everything that does not pass test or have at least a child* does not
*
* @param[in] xt XML tree with some node marked
* @param[in] flag Which flag to test for
* @param[in] test 1: test that flag is set, 0: test that flag is not set
@ -701,7 +702,6 @@ xml_diff(yang_stmt *yspec,
* @note This function seems a little too complex semantics
* @see xml_tree_prune_flagged for a simpler variant
*/
#if 1
int
xml_tree_prune_flagged_sub(cxobj *xt,
int flag,
@ -773,97 +773,6 @@ xml_tree_prune_flagged_sub(cxobj *xt,
*upmark = mark;
return retval;
}
#else
/* This is optimized in the sense that xml_purge is replaced with xml_child_rm but it leaks memory,
* in poarticualr attributes and namespace caches
*/
int
xml_tree_prune_flagged_sub(cxobj *xt,
int flag,
int test,
int *upmark)
{
int retval = -1;
int submark;
int mark;
cxobj *x;
cxobj *xprev;
int iskey;
int anykey=0;
yang_stmt *yt;
int i;
mark = 0;
yt = xml_spec(xt); /* xan be null */
x = NULL;
xprev = x = NULL;
i = 0;
while ((x = xml_child_each(xt, x, -1)) != NULL) {
i++;
if (xml_type(x) != CX_ELMNT){
xprev = x;
continue;
}
if (xml_flag(x, flag) == test?flag:0){
/* Pass test */
mark++;
xprev = x;
continue; /* mark and stop here */
}
/* If it is key dont remove it yet (see second round) */
if (yt){
if ((iskey = yang_key_match(yt, xml_name(x))) < 0)
goto done;
if (iskey){
anykey++;
xprev = x; /* skip if this is key */
continue;
}
}
if (xml_tree_prune_flagged_sub(x, flag, test, &submark) < 0)
goto done;
/* if xt is list and submark anywhere, then key subs are also marked
*/
if (submark)
mark++;
else{ /* Safe with xml_child_each if last */
if (xml_child_rm(xt, i-1) < 0)
goto done;
i--;
x = xprev;
}
xprev = x;
}
/* Second round: if any keys were found, and no marks detected, purge now */
if (anykey && !mark){
x = NULL;
xprev = x = NULL;
i = 0;
while ((x = xml_child_each(xt, x, -1)) != NULL) {
i++;
if (xml_type(x) != CX_ELMNT){
xprev = x;
continue;
}
/* If it is key remove it here */
if (yt){
if ((iskey = yang_key_match(yt, xml_name(x))) < 0)
goto done;
if (xml_child_rm(xt, i-1) < 0)
goto done;
i--;
x = xprev;
}
xprev = x;
}
}
retval = 0;
done:
if (upmark)
*upmark = mark;
return retval;
}
#endif
/*! Prune everything that passes test
* @param[in] xt XML tree with some node marked

View file

@ -150,6 +150,7 @@ xp_yang_eval_step(xp_yang_ctx *xy0,
char *prefix;
yang_stmt *ys;
xp_yang_ctx *xy = NULL;
yang_stmt *ys1 = NULL;
/* Create new xy */
if ((xy = xy_dup(xy0)) == NULL)
@ -164,9 +165,12 @@ xp_yang_eval_step(xp_yang_ctx *xy0,
switch (nodetest->xs_type){
case XP_NODE:
if ((prefix = nodetest->xs_s0) != NULL){
if (yang_keyword_get(ys) == Y_MODULE){ /* This means top */
yang_stmt *ys1 = NULL;
/* XXX: Kludge with prefixes */
/* XXX: Kludge with prefixes */
if (yang_keyword_get(ys) == Y_SPEC){ /* This means top */
if ((ys1 = yang_find_module_by_prefix_yspec(ys, prefix)) != NULL)
ys = ys1;
}
else if (yang_keyword_get(ys) == Y_MODULE){ /* This means top */
if ((ys1 = yang_find_module_by_prefix(ys, prefix)) == NULL)
ys1 = yang_find_module_by_prefix_yspec(ys_spec(ys), prefix);
if (ys1 != NULL)
@ -323,9 +327,15 @@ xp_yang_eval(xp_yang_ctx *xy,
}
}
break;
case XP_PRIME_STR:
if ((*xyr = xy_dup(xy)) == NULL)
goto done;
goto ok;
break;
case XP_ABSPATH:
/* Set context node to top node, and nodeset to that node only */
xy->xy_node = ys_module(xy->xy_node);
if (yang_keyword_get(xy->xy_node) != Y_SPEC)
xy->xy_node = ys_module(xy->xy_node);
break;
case XP_PRED:
if (xp_yang_eval_predicate(xy, xptree, xyr) < 0)
@ -419,15 +429,24 @@ xp_yang_eval(xp_yang_ctx *xy,
* Leafrefs have a path arguments that are used both for finding referred XML node instances as well
* as finding a referred YANG node for typechecks.
* Such a path-arg is defined as:
* The syntax for a path argument is a subset of the XPath abbreviated
* The syntax for a path argument is a subset of the XPath abbreviated
* syntax. Predicates are used only for constraining the values for the
* key nodes for list entries. Each predicate consists of exactly one
* equality test per key, and multiple adjacent predicates MAY be
* present if a list has multiple keys.
* @param[in] ys YANG referring leaf node
* @param[in] path_arg Leafref path-arg
* @param[in] ys YANG referring node
* @param[in] path_arg path-arg
* @param[out] yref YANG referred node
* @note this function uses XPATH parser, which is (much too) general
* @code
* yang_stmt *ys; // source / referring node
* yang_stmt *yref = NULL; // target / referred node
* char *path_arg="../config/name";
*
* if (yang_path_arg(ys, path_arg, &yref) < 0)
* err;
* @endcode
* @see rfc7950 Sec 9.9.2
* @see rfc7950 Sec 14 (leafref path)
*/