299 lines
8.2 KiB
Text
299 lines
8.2 KiB
Text
/*
|
|
*
|
|
***** BEGIN LICENSE BLOCK *****
|
|
|
|
Copyright (C) 2009-2019 Olof Hagsand
|
|
Copyright (C) 2020-2021 Olof Hagsand and Rubicon Communications, LLC(Netgate)
|
|
|
|
This file is part of CLIXON.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
|
|
Alternatively, the contents of this file may be used under the terms of
|
|
the GNU General Public License Version 3 or later (the "GPL"),
|
|
in which case the provisions of the GPL are applicable instead
|
|
of those above. If you wish to allow use of your version of this file only
|
|
under the terms of the GPL, and not to allow others to
|
|
use your version of this file under the terms of Apache License version 2,
|
|
indicate your decision by deleting the provisions above and replace them with
|
|
the notice and other provisions required by the GPL. If you do not delete
|
|
the provisions above, a recipient may use your version of this file under
|
|
the terms of any one of the Apache License version 2 or the GPL.
|
|
|
|
***** END LICENSE BLOCK *****
|
|
|
|
* "api-path" is "URI-encoded path expression" definition in RFC8040 3.5.3
|
|
* BNF:
|
|
* <api-path> := <root> ("/" (<api-identifier> | <list-instance>))*
|
|
* <root> := <string> # See note 1 below
|
|
* <root> := <string>
|
|
* <api-identifier> := [<module-name> ":"] <identifier>
|
|
* <module-name> := <identifier>
|
|
* <list-instance> := <api-identifier> "=" key-value *("," key-value)
|
|
* <key-value> := <string>
|
|
* <string> := <an unquoted string>
|
|
* <identifier> := (<ALPHA> | "_") (<ALPHA> | <DIGIT> | "_" | "-" | ".")
|
|
* @note 1. <root> is the RESTCONF root resource (Sec 3.3) omitted in all calls below, it is
|
|
* assumed to be stripped from api-path before calling these functions.
|
|
* @note 2. characters in a key value string are constrained, and some characters need to be
|
|
* percent-encoded,
|
|
*/
|
|
|
|
%start start
|
|
|
|
/* Must be here to define YYSTYPE */
|
|
%union {
|
|
char *string;
|
|
void *stack; /* cv / cvec */
|
|
}
|
|
|
|
%token <string> IDENTIFIER
|
|
%token <string> STRING
|
|
%token <string> SLASH
|
|
%token <string> COLON
|
|
%token <string> COMMA
|
|
%token <string> EQUAL
|
|
%token <string> X_EOF
|
|
|
|
%type <stack> list
|
|
%type <stack> element
|
|
%type <stack> api_identifier
|
|
%type <string> module_name
|
|
%type <stack> list_instance
|
|
%type <stack> key_values
|
|
%type <stack> key_value
|
|
|
|
|
|
%lex-param {void *_ay} /* Add this argument to parse() and lex() function */
|
|
%parse-param {void *_ay}
|
|
|
|
%{
|
|
/* Here starts user C-code */
|
|
|
|
/* typecast macro */
|
|
#define _AY ((clixon_api_path_yacc *)_ay)
|
|
|
|
#define _YYERROR(msg) {clicon_err(OE_XML, 0, "YYERROR %s '%s' %d", (msg), clixon_api_path_parsetext, _AY->ay_linenum); YYERROR;}
|
|
|
|
/* add _yy to error parameters */
|
|
#define YY_(msgid) msgid
|
|
|
|
#include "clixon_config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <net/if.h>
|
|
|
|
#include <cligen/cligen.h>
|
|
|
|
#include "clixon_err.h"
|
|
#include "clixon_log.h"
|
|
#include "clixon_queue.h"
|
|
#include "clixon_string.h"
|
|
#include "clixon_hash.h"
|
|
#include "clixon_handle.h"
|
|
#include "clixon_yang.h"
|
|
#include "clixon_xml.h"
|
|
#include "clixon_path.h"
|
|
#include "clixon_api_path_parse.h"
|
|
|
|
/*
|
|
also called from yacc generated code *
|
|
*/
|
|
|
|
void
|
|
clixon_api_path_parseerror(void *_ay,
|
|
char *s)
|
|
{
|
|
clicon_err(OE_XML, 0, "%s on line %d: %s at or before: '%s'",
|
|
_AY->ay_name,
|
|
_AY->ay_linenum ,
|
|
s,
|
|
clixon_api_path_parsetext);
|
|
return;
|
|
}
|
|
|
|
int
|
|
api_path_parse_init(clixon_api_path_yacc *ay)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
api_path_parse_exit(clixon_api_path_yacc *ay)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*! Append new path structure to clixon path list
|
|
*/
|
|
static clixon_path *
|
|
path_append(clixon_path *list,
|
|
clixon_path *new)
|
|
{
|
|
clicon_debug(3, "%s()", __FUNCTION__);
|
|
if (new == NULL)
|
|
return NULL;
|
|
ADDQ(new, list);
|
|
return list;
|
|
}
|
|
|
|
/*! Add keyvalue to existing clixon path
|
|
*/
|
|
static clixon_path *
|
|
path_add_keyvalue(clixon_path *cp,
|
|
cvec *cvk)
|
|
{
|
|
clicon_debug(3, "%s()", __FUNCTION__);
|
|
if (cp)
|
|
cp->cp_cvk = cvk;
|
|
return cp;
|
|
}
|
|
|
|
static clixon_path *
|
|
path_new(char *module_name,
|
|
char *id)
|
|
{
|
|
clixon_path *cp = NULL;
|
|
|
|
clicon_debug(3, "%s(%s,%s)", __FUNCTION__, module_name, id);
|
|
if ((cp = malloc(sizeof(*cp))) == NULL){
|
|
clicon_err(OE_UNIX, errno, "malloc");
|
|
goto done;
|
|
}
|
|
memset(cp, 0, sizeof(*cp));
|
|
if (module_name)
|
|
if ((cp->cp_prefix = strdup(module_name)) == NULL){
|
|
clicon_err(OE_UNIX, errno, "strdup");
|
|
goto done;
|
|
}
|
|
if ((cp->cp_id = strdup(id)) == NULL){
|
|
clicon_err(OE_UNIX, errno, "strdup");
|
|
goto done;
|
|
}
|
|
return cp;
|
|
done:
|
|
return NULL;
|
|
}
|
|
|
|
/*! Append a key-value cv to a cvec, create the cvec if not exist
|
|
* @param[in] cvv Either created cvv or NULL, in whihc case it is created
|
|
* @param[in] cv Is consumed by thius function (if appended)
|
|
* @retval NULL Error
|
|
* @retval cvv Cvec
|
|
*/
|
|
static cvec *
|
|
keyval_add(cvec *cvv,
|
|
cg_var *cv)
|
|
{
|
|
clicon_debug(3, "%s()", __FUNCTION__);
|
|
if (cv == NULL)
|
|
goto done;
|
|
if (cvv == NULL &&
|
|
(cvv = cvec_new(0)) == NULL) {
|
|
clicon_err(OE_UNIX, errno, "cvec_new");
|
|
goto done;
|
|
}
|
|
if (cvec_append_var(cvv, cv) == NULL){
|
|
clicon_err(OE_UNIX, errno, "cvec_append_var");
|
|
cvv = NULL;
|
|
goto done;
|
|
}
|
|
cv_free(cv);
|
|
done:
|
|
return cvv;
|
|
}
|
|
|
|
/*! Create a single key-value as cv and return it
|
|
*/
|
|
static cg_var *
|
|
keyval_set(char *name,
|
|
char *val)
|
|
{
|
|
cg_var *cv = NULL;
|
|
|
|
clicon_debug(3, "%s(%s=%s)", __FUNCTION__, name?name:"NULL", val);
|
|
if ((cv = cv_new(CGV_STRING)) == NULL){
|
|
clicon_err(OE_UNIX, errno, "cv_new");
|
|
goto done;
|
|
}
|
|
if (name && cv_name_set(cv, name) == NULL){
|
|
clicon_err(OE_UNIX, errno, "cv_string_set");
|
|
cv = NULL;
|
|
goto done;
|
|
}
|
|
if (cv_string_set(cv, val) == NULL){
|
|
clicon_err(OE_UNIX, errno, "cv_string_set");
|
|
cv = NULL;
|
|
goto done;
|
|
}
|
|
done:
|
|
return cv;
|
|
}
|
|
|
|
%}
|
|
|
|
|
|
%%
|
|
|
|
/*
|
|
*/
|
|
|
|
start : list X_EOF {clicon_debug(2,"top");_AY->ay_top=$1; YYACCEPT; }
|
|
;
|
|
|
|
list : list SLASH element { if (($$ = path_append($1, $3)) == NULL) YYABORT;
|
|
clicon_debug(2,"list = list / element");}
|
|
| { $$ = NULL;
|
|
clicon_debug(2,"list = ");}
|
|
;
|
|
|
|
element : api_identifier { $$=$1;
|
|
clicon_debug(2,"element = api_identifier");}
|
|
| list_instance { $$=$1;
|
|
clicon_debug(2,"element = list_instance");}
|
|
;
|
|
|
|
api_identifier : module_name COLON IDENTIFIER { $$ = path_new($1, $3); free($1); free($3);
|
|
clicon_debug(2,"api_identifier = module_name : IDENTIFIER");}
|
|
| IDENTIFIER { $$ = path_new(NULL, $1); free($1);
|
|
clicon_debug(2,"api_identifier = IDENTIFIER");}
|
|
;
|
|
|
|
module_name : IDENTIFIER { $$ = $1;
|
|
clicon_debug(2,"module_name = IDENTIFIER");}
|
|
;
|
|
|
|
list_instance : api_identifier EQUAL key_values { $$ = path_add_keyvalue($1, $3);
|
|
clicon_debug(2,"list_instance->api_identifier = key_values");}
|
|
;
|
|
|
|
key_values : key_values COMMA key_value { if (($$ = keyval_add($1, $3)) == NULL) YYABORT;
|
|
clicon_debug(2,"key_values->key_values , key_value");}
|
|
| key_value { if (($$ = keyval_add(NULL, $1)) == NULL) YYABORT;
|
|
clicon_debug(2,"key_values->key_value");}
|
|
;
|
|
|
|
key_value : STRING { $$ = keyval_set(NULL, $1); free($1); clicon_debug(2,"keyvalue->STRING"); }
|
|
| { $$ = keyval_set(NULL, ""); clicon_debug(2,"keyvalue->"); }
|
|
;
|
|
|
|
%%
|
|
|