* Proper RFC 6241 Netconf error handling
* New functions added in clixon_netconf_lib.[ch] * Datastore code modified for RFC 6241 * Remaining: validate, generic restconf and netconf code
This commit is contained in:
Olof hagsand
parent
52e510cfdf
commit
efa72e9e6f
26 changed files with 1196 additions and 475 deletions
698
lib/src/clixon_netconf_lib.c
Normal file
698
lib/src/clixon_netconf_lib.c
Normal file
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@ -0,0 +1,698 @@
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/*
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*
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***** BEGIN LICENSE BLOCK *****
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Copyright (C) 2009-2018 Olof Hagsand and Benny Holmgren
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This file is part of CLIXON.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 3 or later (the "GPL"),
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in which case the provisions of the GPL are applicable instead
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of those above. If you wish to allow use of your version of this file only
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under the terms of the GPL, and not to allow others to
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use your version of this file under the terms of Apache License version 2,
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indicate your decision by deleting the provisions above and replace them with
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the notice and other provisions required by the GPL. If you do not delete
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the provisions above, a recipient may use your version of this file under
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the terms of any one of the Apache License version 2 or the GPL.
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***** END LICENSE BLOCK *****
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* Netconf library functions. See RFC6241
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*/
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#ifdef HAVE_CONFIG_H
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#include "clixon_config.h" /* generated by config & autoconf */
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <limits.h>
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#include <fnmatch.h>
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#include <stdint.h>
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#include <assert.h>
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/* cligen */
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#include <cligen/cligen.h>
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/* clixon */
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#include "clixon_queue.h"
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#include "clixon_hash.h"
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#include "clixon_err.h"
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#include "clixon_handle.h"
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#include "clixon_yang.h"
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#include "clixon_xml.h"
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#include "clixon_netconf_lib.h"
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/*! Create Netconf in-use error XML tree according to RFC 6241 Appendix A
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*
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* The request requires a resource that already is in use.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "application" or "protocol"
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* @param[in] message Error message
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*/
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int
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netconf_in_use(cbuf *cb,
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char *type,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>in-use</error-tag>"
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"<error-type>%s</error-type>"
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"<error-severity>error</error-severity>",
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type) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf invalid-value error XML tree according to RFC 6241 Appendix A
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*
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* The request specifies an unacceptable value for one or more parameters.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "application" or "protocol"
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* @param[in] message Error message
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*/
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int
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netconf_invalid_value(cbuf *cb,
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char *type,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>invalid-value</error-tag>"
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"<error-type>%s</error-type>"
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"<error-severity>error</error-severity>",
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type) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf too-big error XML tree according to RFC 6241 Appendix A
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*
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* The request or response (that would be generated) is
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* too large for the implementation to handle.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "transport", "rpc", "application", "protocol"
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* @param[in] message Error message
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*/
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int
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netconf_too_big(cbuf *cb,
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char *type,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>too-big</error-tag>"
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"<error-type>%s</error-type>"
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"<error-severity>error</error-severity>",
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type) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf missing-attribute error XML tree according to RFC 6241 App A
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*
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* An expected attribute is missing.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "rpc", "application" or "protocol"
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* @param[in] info bad-attribute or bad-element xml
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* @param[in] message Error message
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*/
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int
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netconf_missing_attribute(cbuf *cb,
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char *type,
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char *info,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>missing-attribute</error-tag>"
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"<error-type>%s</error-type>"
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"<error-info>%s</error-info>"
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"<error-severity>error</error-severity>",
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type, info) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf bad-attribute error XML tree according to RFC 6241 App A
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*
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* An attribute value is not correct; e.g., wrong type,
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* out of range, pattern mismatch.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "rpc", "application" or "protocol"
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* @param[in] info bad-attribute or bad-element xml
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* @param[in] message Error message
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*/
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int
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netconf_bad_attribute(cbuf *cb,
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char *type,
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char *info,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>bad-attribute</error-tag>"
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"<error-type>%s</error-type>"
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"<error-info>%s</error-info>"
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"<error-severity>error</error-severity>",
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type, info) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf unknwon-attribute error XML tree according to RFC 6241 App A
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*
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* An unexpected attribute is present.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "rpc", "application" or "protocol"
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* @param[in] info bad-attribute or bad-element xml
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* @param[in] message Error message
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*/
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int
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netconf_unknown_attribute(cbuf *cb,
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char *type,
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char *info,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>unknown-attribute</error-tag>"
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"<error-type>%s</error-type>"
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"<error-info>%s</error-info>"
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"<error-severity>error</error-severity>",
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type, info) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf missing-element error XML tree according to RFC 6241 App A
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*
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* An expected element is missing.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "application" or "protocol"
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* @param[in] info bad-element xml
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* @param[in] message Error message
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*/
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int
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netconf_missing_element(cbuf *cb,
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char *type,
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char *info,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>missing-element</error-tag>"
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"<error-type>%s</error-type>"
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"<error-info>%s</error-info>"
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"<error-severity>error</error-severity>",
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type, info) <0)
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goto err;
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if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
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goto err;
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if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
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goto err;
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retval = 0;
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done:
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return retval;
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err:
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clicon_err(OE_XML, errno, "cprintf");
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goto done;
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}
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/*! Create Netconf bad-element error XML tree according to RFC 6241 App A
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*
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* An element value is not correct; e.g., wrong type, out of range,
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* pattern mismatch.
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* @param[out] cb CLIgen buf. Error XML is written in this buffer
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* @param[in] type Error type: "application" or "protocol"
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* @param[in] info bad-element xml
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* @param[in] message Error message
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*/
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int
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netconf_bad_element(cbuf *cb,
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char *type,
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char *info,
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char *message)
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{
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int retval = -1;
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if (cprintf(cb, "<rpc-reply><rpc-error>"
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"<error-tag>bad-element</error-tag>"
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"<error-type>%s</error-type>"
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"<error-info>%s</error-info>"
|
||||
"<error-severity>error</error-severity>",
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type, info) <0)
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||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
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||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf unknown-element error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* An unexpected element is present.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "application" or "protocol"
|
||||
* @param[in] info bad-element xml
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_unknown_element(cbuf *cb,
|
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char *type,
|
||||
char *info,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>unknown-element</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-info>%s</error-info>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type, info) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf unknown-namespace error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* An unexpected namespace is present.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "application" or "protocol"
|
||||
* @param[in] info bad-element or bad-namespace xml
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_unknown_namespace(cbuf *cb,
|
||||
char *type,
|
||||
char *info,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>unknown-namespace</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-info>%s</error-info>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type, info) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf access-denied error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* An expected element is missing.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "application" or "protocol"
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_access_denied(cbuf *cb,
|
||||
char *type,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>access-denied</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf lock-denied error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* Access to the requested lock is denied because the lock is currently held
|
||||
* by another entity.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] info session-id xml
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_lock_denied(cbuf *cb,
|
||||
char *info,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>lock-denied</error-tag>"
|
||||
"<error-type>protocol</error-type>"
|
||||
"<error-info>%s</error-info>"
|
||||
"<error-severity>error</error-severity>",
|
||||
info) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf resource-denied error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* An expected element is missing.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "transport, "rpc", "application", "protocol"
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_resource_denied(cbuf *cb,
|
||||
char *type,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>resource-denied</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf rollback-failed error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* Request to roll back some configuration change (via rollback-on-error or
|
||||
* <discard-changes> operations) was not completed for some reason.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "application" or "protocol"
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_rollback_failed(cbuf *cb,
|
||||
char *type,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>rollback-failed</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf data-exists error XML tree according to RFC 6241 Appendix A
|
||||
*
|
||||
* Request could not be completed because the relevant
|
||||
* data model content already exists. For example,
|
||||
* a "create" operation was attempted on data that already exists.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_data_exists(cbuf *cb,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>data-exists</error-tag>"
|
||||
"<error-type>application</error-type>"
|
||||
"<error-severity>error</error-severity>") <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf data-missing error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* Request could not be completed because the relevant data model content
|
||||
* does not exist. For example, a "delete" operation was attempted on
|
||||
* data that does not exist.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_data_missing(cbuf *cb,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>data-missing</error-tag>"
|
||||
"<error-type>application</error-type>"
|
||||
"<error-severity>error</error-severity>") <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf operation-not-supported error XML according to RFC 6241 App A
|
||||
*
|
||||
* Request could not be completed because the requested operation is not
|
||||
* supported by this implementation.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "application" or "protocol"
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_operation_not_supported(cbuf *cb,
|
||||
char *type,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>operation-not-supported</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf operation-failed error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* Request could not be completed because the requested operation failed for
|
||||
* some reason not covered by any other error condition.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] type Error type: "rpc", "application" or "protocol"
|
||||
* @param[in] message Error message
|
||||
*/
|
||||
int
|
||||
netconf_operation_failed(cbuf *cb,
|
||||
char *type,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>operation-failed</error-tag>"
|
||||
"<error-type>%s</error-type>"
|
||||
"<error-severity>error</error-severity>",
|
||||
type) <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
|
||||
/*! Create Netconf malformed-message error XML tree according to RFC 6241 App A
|
||||
*
|
||||
* A message could not be handled because it failed to be parsed correctly.
|
||||
* For example, the message is not well-formed XML or it uses an
|
||||
* invalid character set.
|
||||
* @param[out] cb CLIgen buf. Error XML is written in this buffer
|
||||
* @param[in] message Error message
|
||||
* @note New in :base:1.1
|
||||
*/
|
||||
int
|
||||
netconf_malformed_message(cbuf *cb,
|
||||
char *message)
|
||||
{
|
||||
int retval = -1;
|
||||
|
||||
if (cprintf(cb, "<rpc-reply><rpc-error>"
|
||||
"<error-tag>malformed-message</error-tag>"
|
||||
"<error-type>rpc</error-type>"
|
||||
"<error-severity>error</error-severity>") <0)
|
||||
goto err;
|
||||
if (message && cprintf(cb, "<error-message>%s</error-message>", message) < 0)
|
||||
goto err;
|
||||
if (cprintf(cb, "</rpc-error></rpc-reply>") <0)
|
||||
goto err;
|
||||
retval = 0;
|
||||
done:
|
||||
return retval;
|
||||
err:
|
||||
clicon_err(OE_XML, errno, "cprintf");
|
||||
goto done;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue