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* RESTCONF "content" query parameter supported

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* New clixon-lib@2019-08-13.yang revision
* Bugfix: If `ietf-netconf.yang` was imported from any yang module, client/backend communication stops working.
This commit is contained in:
Olof hagsand 2019-08-13 13:21:11 +02:00
parent 48022e57b9
commit 8b7b7b0f60
20 changed files with 507 additions and 62 deletions
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93
apps/backend/backend_client.c
View file

@ -942,6 +942,94 @@ from_client_get(clicon_handle h,
return retval;
}
/*! Retrieve device state information only
*
* This is a CLIXON specific RPC
* @param[in] h Clicon handle
* @param[in] xe Request: <rpc><xn></rpc>
* @param[out] cbret Return xml tree, eg <rpc-reply>..., <rpc-error..
* @param[in] arg client-entry
* @param[in] regarg User argument given at rpc_callback_register()
* @retval 0 OK
* @retval -1 Error
*
* @see from_client_get
*/
static int
from_client_get_state(clicon_handle h,
cxobj *xe,
cbuf *cbret,
void *arg,
void *regarg)
{
int retval = -1;
cxobj *xfilter;
char *xpath = "/";
cxobj *xret = NULL;
int ret;
cxobj **xvec = NULL;
size_t xlen;
cxobj *xnacm = NULL;
char *username;
cvec *nsc = NULL; /* Create a netconf namespace context from filter */
username = clicon_username_get(h);
if ((xfilter = xml_find(xe, "filter")) != NULL){
if ((xpath = xml_find_value(xfilter, "select"))==NULL)
xpath="/";
/* Create namespace context for xpath from <filter>
* The set of namespace declarations are those in scope on the
* <filter> element.
*/
else
if (xml_nsctx_node(xfilter, &nsc) < 0)
goto done;
}
/* Get state data from plugins as defined by plugin_statedata(), if any */
clicon_err_reset();
if ((ret = client_statedata(h, xpath, nsc, &xret)) < 0)
goto done;
if (ret == 0){ /* Error from callback (error in xret) */
if (clicon_xml2cbuf(cbret, xret, 0, 0) < 0)
goto done;
goto ok;
}
/* Pre-NACM access step */
if ((ret = nacm_access_pre(h, username, NACM_DATA, &xnacm)) < 0)
goto done;
if (ret == 0){ /* Do NACM validation */
if (xpath_vec_nsc(xret, nsc, "%s", &xvec, &xlen, xpath?xpath:"/") < 0)
goto done;
/* NACM datanode/module read validation */
if (nacm_datanode_read(xret, xvec, xlen, username, xnacm) < 0)
goto done;
}
cprintf(cbret, "<rpc-reply>"); /* OK */
if (xret==NULL)
cprintf(cbret, "<data/>");
else{
if (xml_name_set(xret, "data") < 0)
goto done;
if (clicon_xml2cbuf(cbret, xret, 0, 0) < 0)
goto done;
}
cprintf(cbret, "</rpc-reply>");
ok:
retval = 0;
done:
clicon_debug(1, "%s retval:%d", __FUNCTION__, retval);
if (xnacm)
xml_free(xnacm);
if (xvec)
free(xvec);
if (nsc)
xml_nsctx_free(nsc);
if (xret)
xml_free(xret);
return retval;
}
/*! Request graceful termination of a NETCONF session.
* @param[in] h Clicon handle
* @param[in] xe Request: <rpc><xn></rpc>
@ -1283,7 +1371,7 @@ from_client_msg(clicon_handle h,
goto reply; /* Dont quit here on user callbacks */
}
if (ret == 0){ /* not handled by callback */
if (netconf_operation_failed(cbret, "application", "Callback not recognized")< 0)
if (netconf_operation_not_supported(cbret, "application", "RPC operation not supported")< 0)
goto done;
goto reply;
}
@ -1424,6 +1512,9 @@ backend_rpc_init(clicon_handle h)
"urn:ietf:params:xml:ns:netmod:notification", "create-subscription") < 0)
goto done;
/* Clixon RPC */
if (rpc_callback_register(h, from_client_get_state, NULL,
"http://clicon.org/lib", "get-state") < 0)
goto done;
if (rpc_callback_register(h, from_client_debug, NULL,
"http://clicon.org/lib", "debug") < 0)
goto done;