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01d54ad206
PR: 198396 Submitted by: Marie Helene Kvello-Aune <marieheleneka at gmail.com> MFC after: 1 month Sponsored by: The FreeBSD Foundation
347 lines
7.7 KiB
Plaintext
347 lines
7.7 KiB
Plaintext
%{
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/*-
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* Copyright (c) 2012 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Edward Tomasz Napierala under sponsorship
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* from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libxo/xo.h>
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#include "iscsictl.h"
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extern FILE *yyin;
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extern char *yytext;
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extern int lineno;
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static struct conf *conf;
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static struct target *target;
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extern void yyerror(const char *);
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extern int yylex(void);
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extern void yyrestart(FILE *);
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%}
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%token AUTH_METHOD HEADER_DIGEST DATA_DIGEST TARGET_NAME TARGET_ADDRESS
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%token INITIATOR_NAME INITIATOR_ADDRESS INITIATOR_ALIAS USER SECRET
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%token MUTUAL_USER MUTUAL_SECRET SEMICOLON SESSION_TYPE PROTOCOL OFFLOAD
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%token IGNORED EQUALS OPENING_BRACKET CLOSING_BRACKET
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%union
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{
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char *str;
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}
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%token <str> STR
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%%
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targets:
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targets target
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;
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target: STR OPENING_BRACKET target_entries CLOSING_BRACKET
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{
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if (target_find(conf, $1) != NULL)
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xo_errx(1, "duplicated target %s", $1);
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target->t_nickname = $1;
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target = target_new(conf);
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}
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;
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target_entries:
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target_entries target_entry
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target_entries target_entry SEMICOLON
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;
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target_entry:
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target_name
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target_address
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initiator_name
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initiator_address
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initiator_alias
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user
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secret
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mutual_user
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mutual_secret
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auth_method
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header_digest
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data_digest
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session_type
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offload
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protocol
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ignored
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;
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target_name: TARGET_NAME EQUALS STR
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{
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if (target->t_name != NULL)
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xo_errx(1, "duplicated TargetName at line %d", lineno);
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target->t_name = $3;
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}
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;
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target_address: TARGET_ADDRESS EQUALS STR
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{
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if (target->t_address != NULL)
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xo_errx(1, "duplicated TargetAddress at line %d", lineno);
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target->t_address = $3;
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}
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;
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initiator_name: INITIATOR_NAME EQUALS STR
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{
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if (target->t_initiator_name != NULL)
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xo_errx(1, "duplicated InitiatorName at line %d", lineno);
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target->t_initiator_name = $3;
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}
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;
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initiator_address: INITIATOR_ADDRESS EQUALS STR
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{
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if (target->t_initiator_address != NULL)
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xo_errx(1, "duplicated InitiatorAddress at line %d", lineno);
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target->t_initiator_address = $3;
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}
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;
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initiator_alias: INITIATOR_ALIAS EQUALS STR
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{
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if (target->t_initiator_alias != NULL)
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xo_errx(1, "duplicated InitiatorAlias at line %d", lineno);
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target->t_initiator_alias = $3;
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}
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;
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user: USER EQUALS STR
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{
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if (target->t_user != NULL)
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xo_errx(1, "duplicated chapIName at line %d", lineno);
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target->t_user = $3;
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}
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;
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secret: SECRET EQUALS STR
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{
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if (target->t_secret != NULL)
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xo_errx(1, "duplicated chapSecret at line %d", lineno);
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target->t_secret = $3;
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}
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;
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mutual_user: MUTUAL_USER EQUALS STR
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{
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if (target->t_mutual_user != NULL)
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xo_errx(1, "duplicated tgtChapName at line %d", lineno);
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target->t_mutual_user = $3;
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}
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;
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mutual_secret: MUTUAL_SECRET EQUALS STR
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{
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if (target->t_mutual_secret != NULL)
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xo_errx(1, "duplicated tgtChapSecret at line %d", lineno);
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target->t_mutual_secret = $3;
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}
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;
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auth_method: AUTH_METHOD EQUALS STR
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{
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if (target->t_auth_method != AUTH_METHOD_UNSPECIFIED)
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xo_errx(1, "duplicated AuthMethod at line %d", lineno);
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if (strcasecmp($3, "none") == 0)
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target->t_auth_method = AUTH_METHOD_NONE;
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else if (strcasecmp($3, "chap") == 0)
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target->t_auth_method = AUTH_METHOD_CHAP;
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else
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xo_errx(1, "invalid AuthMethod at line %d; "
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"must be either \"none\" or \"CHAP\"", lineno);
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}
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;
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header_digest: HEADER_DIGEST EQUALS STR
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{
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if (target->t_header_digest != DIGEST_UNSPECIFIED)
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xo_errx(1, "duplicated HeaderDigest at line %d", lineno);
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if (strcasecmp($3, "none") == 0)
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target->t_header_digest = DIGEST_NONE;
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else if (strcasecmp($3, "CRC32C") == 0)
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target->t_header_digest = DIGEST_CRC32C;
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else
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xo_errx(1, "invalid HeaderDigest at line %d; "
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"must be either \"none\" or \"CRC32C\"", lineno);
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}
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;
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data_digest: DATA_DIGEST EQUALS STR
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{
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if (target->t_data_digest != DIGEST_UNSPECIFIED)
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xo_errx(1, "duplicated DataDigest at line %d", lineno);
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if (strcasecmp($3, "none") == 0)
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target->t_data_digest = DIGEST_NONE;
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else if (strcasecmp($3, "CRC32C") == 0)
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target->t_data_digest = DIGEST_CRC32C;
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else
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xo_errx(1, "invalid DataDigest at line %d; "
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"must be either \"none\" or \"CRC32C\"", lineno);
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}
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;
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session_type: SESSION_TYPE EQUALS STR
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{
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if (target->t_session_type != SESSION_TYPE_UNSPECIFIED)
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xo_errx(1, "duplicated SessionType at line %d", lineno);
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if (strcasecmp($3, "normal") == 0)
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target->t_session_type = SESSION_TYPE_NORMAL;
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else if (strcasecmp($3, "discovery") == 0)
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target->t_session_type = SESSION_TYPE_DISCOVERY;
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else
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xo_errx(1, "invalid SessionType at line %d; "
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"must be either \"normal\" or \"discovery\"", lineno);
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}
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;
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offload: OFFLOAD EQUALS STR
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{
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if (target->t_offload != NULL)
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xo_errx(1, "duplicated offload at line %d", lineno);
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target->t_offload = $3;
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}
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;
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protocol: PROTOCOL EQUALS STR
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{
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if (target->t_protocol != PROTOCOL_UNSPECIFIED)
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xo_errx(1, "duplicated protocol at line %d", lineno);
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if (strcasecmp($3, "iscsi") == 0)
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target->t_protocol = PROTOCOL_ISCSI;
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else if (strcasecmp($3, "iser") == 0)
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target->t_protocol = PROTOCOL_ISER;
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else
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xo_errx(1, "invalid protocol at line %d; "
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"must be either \"iscsi\" or \"iser\"", lineno);
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}
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;
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ignored: IGNORED EQUALS STR
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{
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xo_warnx("obsolete statement ignored at line %d", lineno);
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}
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;
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%%
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void
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yyerror(const char *str)
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{
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xo_errx(1, "error in configuration file at line %d near '%s': %s",
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lineno, yytext, str);
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}
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static void
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check_perms(const char *path)
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{
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struct stat sb;
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int error;
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error = stat(path, &sb);
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if (error != 0) {
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xo_warn("stat");
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return;
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}
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if (sb.st_mode & S_IWOTH) {
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xo_warnx("%s is world-writable", path);
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} else if (sb.st_mode & S_IROTH) {
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xo_warnx("%s is world-readable", path);
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} else if (sb.st_mode & S_IXOTH) {
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/*
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* Ok, this one doesn't matter, but still do it,
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* just for consistency.
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*/
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xo_warnx("%s is world-executable", path);
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}
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/*
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* XXX: Should we also check for owner != 0?
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*/
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}
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struct conf *
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conf_new_from_file(const char *path)
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{
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int error;
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conf = conf_new();
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target = target_new(conf);
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yyin = fopen(path, "r");
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if (yyin == NULL)
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xo_err(1, "unable to open configuration file %s", path);
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check_perms(path);
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lineno = 1;
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yyrestart(yyin);
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error = yyparse();
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assert(error == 0);
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fclose(yyin);
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assert(target->t_nickname == NULL);
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target_delete(target);
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conf_verify(conf);
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return (conf);
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}
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