experiments/clixon
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The Clixon API has been extended with namespaces, or namespace contexts in the following cases:

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* CLIspec functions have added namespace parameter:
    * `cli_show_config <db> <format> <xpath>` --> `cli_show_config <db> <format> <xpath> <namespace>`
    * `cli_copy_config <db> <xpath> ...` --> `cli_copy_config <db> <xpath> <namespace> ...`
  * Xpath API
    * `xpath_first(x, format, ...)` --> `xpath_first(x, nsc, format, ...)`
    * `xpath_vec(x, format, vec, veclen, ...)` --> `xpath_vec(x, nsc, format, vec, veclen, ...)`
    * `xpath_vec_flag(x, format, flags, vec, veclen, ...)` --> `xpath_vec_flag(x, format, flags, vec, veclen, ...)`
    * `xpath_vec_bool(x, format, ...)` --> `xpath_vec_bool(x, nsc, format, ...)`
    * `xpath_vec_ctx(x, xpath, xp)` --> `xpath_vec_ctx(x, nsc, xpath, xp)`
  * xmldb_get0 has an added `nsc` parameter:
    * `xmldb_get0(h, db, xpath, copy, xret, msd)` --> `xmldb_get0(h, db, nsc, xpath, copy, xret, msd)`
  * The plugin statedata callback (ca_statedata) has been extended with an nsc parameter:
    * `int example_statedata(clicon_handle h, cvec *nsc, char *xpath, cxobj *xstate);`
  * rpc get and get-config api function has an added namespace argument:
    * `clicon_rpc_get_config(clicon_handle h, char *db, char *xpath, char *namespace, cxobj **xt);`
    * `int clicon_rpc_get(clicon_handle h, char *xpath, char *namespace, cxobj **xt);`
This commit is contained in:
Olof hagsand 2019-07-08 10:36:37 +02:00
parent 73d8e97a01
commit 67b8685bab
78 changed files with 1507 additions and 538 deletions
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42
example/main/example_backend.c
View file

@ -118,17 +118,24 @@ main_commit(clicon_handle h,
cxobj **vec = NULL;
int i;
size_t len;
cvec *nsc = NULL;
if (_transaction_log)
transaction_log(h, td, LOG_NOTICE, __FUNCTION__);
/* Create namespace context for xpath */
if ((nsc = xml_nsctx_init(NULL, "urn:ietf:params:xml:ns:yang:ietf-interfaces")) == NULL)
goto done;
/* Get all added i/fs */
if (xpath_vec_flag(target, "//interface", XML_FLAG_ADD, &vec, &len) < 0)
if (xpath_vec_flag(target, NULL, "//interface", XML_FLAG_ADD, &vec, &len) < 0)
return -1;
if (debug)
for (i=0; i<len; i++) /* Loop over added i/fs */
xml_print(stdout, vec[i]); /* Print the added interface */
// done:
done:
if (nsc)
xml_nsctx_free(nsc);
if (vec)
free(vec);
return 0;
@ -263,6 +270,7 @@ example_copy_extra(clicon_handle h, /* Clicon handle */
/*! Called to get state data from plugin
* @param[in] h Clicon handle
* @param[in] nsc External XML namespace context, or NULL
* @param[in] xpath String with XPATH syntax. or NULL for all
* @param[in] xstate XML tree, <config/> on entry.
* @retval 0 OK
@ -280,16 +288,18 @@ example_copy_extra(clicon_handle h, /* Clicon handle */
*/
int
example_statedata(clicon_handle h,
char *xpath,
cxobj *xstate)
cvec *nsc,
char *xpath,
cxobj *xstate)
{
int retval = -1;
cxobj **xvec = NULL;
size_t xlen;
size_t xlen = 0;
cbuf *cb = cbuf_new();
int i;
cxobj *xt = NULL;
char *name;
cvec *nsc1 = NULL;
if (!_state)
goto ok;
@ -298,10 +308,18 @@ example_statedata(clicon_handle h,
* state information. In this case adding dummy interface operation state
* to configured interfaces.
* Get config according to xpath */
if (xmldb_get(h, "running", xpath, &xt) < 0)
goto done;
/* From that subset, only get the names */
if (xpath_vec(xt, "/interfaces/interface/name", &xvec, &xlen) < 0)
if (xmldb_get0(h, "running", nsc, xpath, 1, &xt, NULL) < 0)
goto done;
/* Here a separate namespace context nsc1 is created. The original nsc
* created by the system cannot be used trivially, since we dont know
* the prefixes, although we could by a complex mechanism find the prefix
* (if it exists) and use that when creating our xpath.
* But it is easier creating a new namespace context nsc1.
*/
if ((nsc1 = xml_nsctx_init(NULL, "urn:ietf:params:xml:ns:yang:ietf-interfaces")) == NULL)
goto done;
if (xpath_vec(xt, nsc1, "/interfaces/interface/name", &xvec, &xlen) < 0)
goto done;
if (xlen){
cprintf(cb, "<interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">");
@ -322,6 +340,8 @@ example_statedata(clicon_handle h,
ok:
retval = 0;
done:
if (nsc1)
xml_nsctx_free(nsc1);
if (xt)
xml_free(xt);
if (cb)
@ -395,7 +415,7 @@ upgrade_2016(clicon_handle h,
if ((name = xml_find_body(xi, "name")) == NULL)
continue; /* shouldnt happen */
/* Get corresponding /interfaces/interface entry */
xif = xpath_first(xt, "/interfaces/interface[name=\"%s\"]", name);
xif = xpath_first(xt, NULL, "/interfaces/interface[name=\"%s\"]", name);
/* - Move /if:interfaces-state/if:interface/if:admin-status to
* /if:interfaces/if:interface/ */
if ((x = xml_find(xi, "admin-status")) != NULL && xif){
@ -498,7 +518,7 @@ upgrade_2018(clicon_handle h,
/* Change type /interfaces/interface/statistics/in-octets to
* decimal64 with fraction-digits 3 and divide values with 1000
*/
if ((x = xpath_first(xi, "statistics/in-octets")) != NULL){
if ((x = xpath_first(xi, NULL, "statistics/in-octets")) != NULL){
if ((xb = xml_body_get(x)) != NULL){
uint64_t u64;
cbuf *cb = cbuf_new();