Head

GCC Code Coverage Report
Directory:	./		Exec	Total	Coverage
File:	usr.sbin/ospfd/parse.c	Lines:	139	414	33.6 %
Date:	2017-11-13	Branches:	69	319	21.6 %

#include <stdlib.h>
#include <string.h>
#define YYBYACC 1
#define YYMAJOR 1
#define YYMINOR 9
#define YYLEX yylex()
#define YYEMPTY -1
#define yyclearin (yychar=(YYEMPTY))
#define yyerrok (yyerrflag=0)
#define YYRECOVERING() (yyerrflag!=0)
#define YYPREFIX "yy"
#line 25 "parse.y"
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <unistd.h>
#include <ifaddrs.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>

#include "ospf.h"
#include "ospfd.h"
#include "ospfe.h"
#include "log.h"

TAILQ_HEAD(files, file)		 files = TAILQ_HEAD_INITIALIZER(files);
static struct file {
	TAILQ_ENTRY(file)	 entry;
	FILE			*stream;
	char			*name;
	int			 lineno;
	int			 errors;
} *file, *topfile;
struct file	*pushfile(const char *, int);
int		 popfile(void);
int		 check_file_secrecy(int, const char *);
int		 yyparse(void);
int		 yylex(void);
int		 yyerror(const char *, ...)
    __attribute__((__format__ (printf, 1, 2)))
    __attribute__((__nonnull__ (1)));
int		 kw_cmp(const void *, const void *);
int		 lookup(char *);
int		 lgetc(int);
int		 lungetc(int);
int		 findeol(void);

TAILQ_HEAD(symhead, sym)	 symhead = TAILQ_HEAD_INITIALIZER(symhead);
struct sym {
	TAILQ_ENTRY(sym)	 entry;
	int			 used;
	int			 persist;
	char			*nam;
	char			*val;
};
int		 symset(const char *, const char *, int);
char		*symget(const char *);

void		 clear_config(struct ospfd_conf *xconf);
u_int32_t	 get_rtr_id(void);
int		 host(const char *, struct in_addr *, struct in_addr *);

static struct ospfd_conf	*conf;
static int			 errors = 0;

struct area	*area = NULL;
struct iface	*iface = NULL;

struct config_defaults {
	char		auth_key[MAX_SIMPLE_AUTH_LEN];
	struct auth_md_head	 md_list;
	u_int32_t	dead_interval;
	u_int32_t	fast_hello_interval;
	u_int16_t	transmit_delay;
	u_int16_t	hello_interval;
	u_int16_t	rxmt_interval;
	u_int16_t	metric;
	enum auth_type	auth_type;
	u_int8_t	auth_keyid;
	u_int8_t	priority;
};

struct config_defaults	 globaldefs;
struct config_defaults	 areadefs;
struct config_defaults	 ifacedefs;
struct config_defaults	*defs;

struct area	*conf_get_area(struct in_addr);
struct iface	*conf_get_if(struct kif *, struct kif_addr *);
int		 conf_check_rdomain(unsigned int);

typedef struct {
	union {
		int64_t		 number;
		char		*string;
		struct redistribute *redist;
	} v;
	int lineno;
} YYSTYPE;

#line 110 "parse.c"
#define AREA 257
#define INTERFACE 258
#define ROUTERID 259
#define FIBUPDATE 260
#define REDISTRIBUTE 261
#define RTLABEL 262
#define RDOMAIN 263
#define RFC1583COMPAT 264
#define STUB 265
#define ROUTER 266
#define SPFDELAY 267
#define SPFHOLDTIME 268
#define EXTTAG 269
#define AUTHKEY 270
#define AUTHTYPE 271
#define AUTHMD 272
#define AUTHMDKEYID 273
#define METRIC 274
#define PASSIVE 275
#define HELLOINTERVAL 276
#define FASTHELLOINTERVAL 277
#define TRANSMITDELAY 278
#define RETRANSMITINTERVAL 279
#define ROUTERDEADTIME 280
#define ROUTERPRIORITY 281
#define SET 282
#define TYPE 283
#define YES 284
#define NO 285
#define MSEC 286
#define MINIMAL 287
#define DEMOTE 288
#define INCLUDE 289
#define ERROR 290
#define STRING 291
#define NUMBER 292
#define YYERRCODE 256
const short yylhs[] =
	{                                        -1,
    0,    0,    0,    0,    0,    0,    0,   11,    9,    9,
    1,    1,    2,    2,    7,    7,   13,   12,   12,   12,
   12,   12,   12,   12,   12,   12,   12,   10,   10,   10,
    3,    3,    3,    4,    4,    5,    5,   18,   19,   20,
   21,   15,   15,   15,   15,   15,   15,   15,   15,   15,
   15,   15,    8,    8,   16,   16,   22,   17,   17,   23,
   14,    6,    6,   24,   24,   25,   25,   25,   25,   25,
   28,   26,   27,   27,   27,   29,   29,   30,   30,   30,
};
const short yylen[] =
	{                                         2,
    0,    3,    2,    3,    3,    3,    3,    2,    2,    1,
    1,    1,    0,    1,    2,    1,    3,    2,    2,    1,
    4,    2,    2,    2,    2,    3,    1,    6,    4,    5,
    0,    2,    7,    3,    1,    2,    2,    3,    2,    2,
    2,    2,    2,    2,    2,    2,    3,    2,    1,    1,
    1,    1,    1,    1,    2,    0,    2,    1,    0,    0,
    7,    1,    0,    3,    2,    1,    3,    1,    1,    2,
    0,    4,    4,    3,    0,    3,    2,    1,    2,    1,
};
const short yydefred[] =
	{                                      1,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,   14,    0,    0,    3,    0,   20,    0,    0,
    0,    0,   27,   52,   51,   49,   50,    7,   60,   18,
   11,   12,   19,    0,   22,   23,    0,    0,   16,   24,
   25,   41,   40,    0,   39,   42,   46,    0,   45,   48,
   54,   53,   44,   43,    8,    0,    0,    2,    4,    5,
    6,    0,    0,   26,   15,   38,   47,   10,    0,    0,
    0,    0,    0,   21,    9,    0,    0,   29,    0,    0,
    0,   30,    0,    0,   32,    0,    0,   55,    0,    0,
    0,   68,    0,    0,   66,   36,   37,    0,   28,   71,
   70,    0,   61,    0,   65,    0,    0,   62,   67,    0,
   64,    0,   35,    0,   72,   57,   58,    0,    0,    0,
   33,   34,   78,    0,   74,   80,    0,    0,   79,   73,
    0,   77,   76,
};
const short yydgoto[] =
	{                                       1,
   43,   27,   88,  122,   95,  119,   50,   63,   79,   28,
   29,   30,   31,   32,  102,   91,  129,   34,   35,   36,
   37,  121,   72,  103,  104,  105,  125,  117,  137,  138,
};
const short yysindex[] =
	{                                      0,
  -10,    6, -261, -260, -272, -255, -273, -272, -234, -275,
 -275, -254, -252, -257, -249, -248, -246, -253, -244, -239,
 -258, -237,    0, -233,   -4,    0, -197,    0,   62,   64,
   65,   69,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0, -189,    0,    0, -272, -210,    0,    0,
    0,    0,    0, -203,    0,    0,    0, -196,    0,    0,
    0,    0,    0,    0,    0, -193, -241,    0,    0,    0,
    0,  -42, -192,    0,    0,    0,    0,    0, -188, -186,
 -183,   48,   92,    0,    0, -183,   -9,    0, -185,   92,
 -211,    0, -184, -182,    0,  -19, -183,    0, -180, -179,
 -178,    0,  -73,   92,    0,    0,    0,   92,    0,    0,
    0, -177,    0,   99,    0, -259,  -11,    0,    0,   92,
    0,   -3,    0,   92,    0,    0,    0,   -8, -259,  108,
    0,    0,    0, -175,    0,    0,  131,   92,    0,    0,
   99,    0,    0,};
const short yyrindex[] =
	{                                      0,
 -147,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,    0,  109,    0,
   39,    0, -187,    0,    0,   39,   -5,    0,    0, -121,
    0,    0,    0,    0,    0,    0,   39,    0,    0,   15,
    0,    0,    0,  -49,    0,    0,    0, -256,    0,    0,
    0,   63,    0,    0,    0,    0,   87,    0,    0,  -97,
    0, -111,    0,  152,    0,    0,    0,    0,    0,    0,
    0,    0,    0,    0,    0,    0,    0,  152,    0,    0,
    0,    0,    0,};
const short yygindex[] =
	{                                      0,
   -2,    0,  -77,    0, -106,    0,  110,    0,    0,   20,
    0,    0,    0,    0,    2,  -82,    0,    0,    0,    0,
    0,  -18,    0,    0,   19,    0,    0,    0,    0,  -13,
};
#define YYTABLESIZE 440
const short yytable[] =
	{                                      26,
   90,   56,   33,   56,   96,   46,   90,   98,   92,  123,
   48,   41,   42,   56,   93,   38,   49,   56,   45,  109,
   80,  115,  132,   94,   69,  116,   56,   56,   61,   39,
   40,   47,   58,   62,   54,   44,   52,  126,   53,  128,
  127,  130,   55,   56,   74,   57,   99,   59,   31,   81,
   82,  113,   60,  100,   64,  142,   66,   65,   12,   13,
   14,   15,   16,   67,   17,   18,   19,   20,   21,   22,
   56,   68,   63,   69,   70,   56,  101,   56,   71,   73,
   83,   75,   56,   56,   56,   56,   56,   76,   56,   56,
   56,   56,   56,   56,   89,   77,   75,   78,   87,   84,
   56,   90,   85,  108,   86,   23,   97,  106,  120,  107,
  110,  124,  112,   13,  118,  139,  131,   56,   17,  111,
   51,  114,  143,  141,    0,    0,    0,    0,    0,    0,
    0,  136,    0,    0,    0,    0,   56,    0,  136,   69,
    0,    0,    0,   56,    0,    0,    0,    0,   56,   56,
   56,   56,   56,   56,   56,   56,   56,   56,   56,   56,
   56,   56,   59,   31,    0,    0,   56,   56,    0,    0,
    0,   59,   56,   56,   56,   56,   56,   56,   56,   56,
   56,   56,   56,   56,   99,    0,    0,   63,    0,    0,
   56,  100,    0,    0,    0,    0,   12,   13,   14,   15,
   16,    0,   17,   18,   19,   20,   21,   22,   56,    0,
    0,   75,    0,    0,  101,   56,    0,    0,    0,    0,
   56,   56,   56,   56,   56,    0,   56,   56,   56,   56,
   56,   56,  135,    0,    0,    0,    0,    0,   56,    0,
    0,    0,    0,    0,    0,    2,    3,    0,    4,    5,
    0,    6,    7,    8,    9,  140,   10,   11,    0,   12,
   13,   14,   15,   16,   93,   17,   18,   19,   20,   21,
   22,    0,   69,   94,   23,   13,   56,    0,   24,   69,
   25,    0,    0,    0,   69,   69,   69,   69,   69,    0,
   69,   69,   69,   69,   69,   69,   31,    0,    0,    0,
    0,    0,   69,   31,    0,    0,    0,    0,   31,   31,
   31,   31,   31,    0,   31,   31,   31,   31,   31,   31,
   63,    0,    0,    0,    0,    0,   31,   63,    0,    0,
    0,    0,   63,   63,   63,   63,   63,    0,   63,   63,
   63,   63,   63,   63,   75,    0,    0,    0,    0,    0,
   63,   75,    0,    0,    0,    0,   75,   75,   75,   75,
   75,    0,   75,   75,   75,   75,   75,   75,    0,    0,
    0,    0,    0,    0,   75,    0,    0,   12,   13,   14,
   15,   16,  133,   17,   18,   19,   20,   21,   22,    0,
    0,    0,    0,    0,    0,  134,    0,    0,    0,    0,
   12,   13,   14,   15,   16,  133,   17,   18,   19,   20,
   21,   22,    0,    0,    0,    0,    0,    0,  134,    0,
    0,   56,   56,   56,   56,   56,   56,   56,   56,   56,
   56,   56,   56,    0,    0,    0,    0,    0,    0,   56,
};
const short yycheck[] =
	{                                      10,
   10,  123,    1,  125,   87,    8,   10,   90,   86,  116,
  286,  284,  285,  125,  274,   10,  292,  274,  292,   97,
  262,  104,  129,  283,   10,  108,  283,  125,  287,  291,
  291,  266,  286,  292,  292,  291,  291,  120,  291,  122,
   44,  124,  292,  292,   47,  292,  258,  292,   10,  291,
  292,  125,  292,  265,  292,  138,   61,  291,  270,  271,
  272,  273,  274,  261,  276,  277,  278,  279,  280,  281,
  258,   10,   10,   10,   10,  125,  288,  265,   10,  269,
  123,  292,  270,  271,  272,  273,  274,  291,  276,  277,
  278,  279,  280,  281,   47,  292,   10,  291,  282,  292,
  288,   10,  291,  123,  291,  285,  292,  292,   10,  292,
  291,  123,  291,  261,  292,  291,  125,  123,   10,  100,
   11,  103,  141,  137,   -1,   -1,   -1,   -1,   -1,   -1,
   -1,  130,   -1,   -1,   -1,   -1,  258,   -1,  137,  125,
   -1,   -1,   -1,  265,   -1,   -1,   -1,   -1,  270,  271,
  272,  273,  274,  275,  276,  277,  278,  279,  280,  281,
  258,  283,  274,  125,   -1,   -1,  288,  265,   -1,   -1,
   -1,  283,  270,  271,  272,  273,  274,  275,  276,  277,
  278,  279,  280,  281,  258,   -1,   -1,  125,   -1,   -1,
  288,  265,   -1,   -1,   -1,   -1,  270,  271,  272,  273,
  274,   -1,  276,  277,  278,  279,  280,  281,  258,   -1,
   -1,  125,   -1,   -1,  288,  265,   -1,   -1,   -1,   -1,
  270,  271,  272,  273,  274,   -1,  276,  277,  278,  279,
  280,  281,  125,   -1,   -1,   -1,   -1,   -1,  288,   -1,
   -1,   -1,   -1,   -1,   -1,  256,  257,   -1,  259,  260,
   -1,  262,  263,  264,  265,  125,  267,  268,   -1,  270,
  271,  272,  273,  274,  274,  276,  277,  278,  279,  280,
  281,   -1,  258,  283,  285,  261,  125,   -1,  289,  265,
  291,   -1,   -1,   -1,  270,  271,  272,  273,  274,   -1,
  276,  277,  278,  279,  280,  281,  258,   -1,   -1,   -1,
   -1,   -1,  288,  265,   -1,   -1,   -1,   -1,  270,  271,
  272,  273,  274,   -1,  276,  277,  278,  279,  280,  281,
  258,   -1,   -1,   -1,   -1,   -1,  288,  265,   -1,   -1,
   -1,   -1,  270,  271,  272,  273,  274,   -1,  276,  277,
  278,  279,  280,  281,  258,   -1,   -1,   -1,   -1,   -1,
  288,  265,   -1,   -1,   -1,   -1,  270,  271,  272,  273,
  274,   -1,  276,  277,  278,  279,  280,  281,   -1,   -1,
   -1,   -1,   -1,   -1,  288,   -1,   -1,  270,  271,  272,
  273,  274,  275,  276,  277,  278,  279,  280,  281,   -1,
   -1,   -1,   -1,   -1,   -1,  288,   -1,   -1,   -1,   -1,
  270,  271,  272,  273,  274,  275,  276,  277,  278,  279,
  280,  281,   -1,   -1,   -1,   -1,   -1,   -1,  288,   -1,
   -1,  270,  271,  272,  273,  274,  275,  276,  277,  278,
  279,  280,  281,   -1,   -1,   -1,   -1,   -1,   -1,  288,
};
#define YYFINAL 1
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 292
#if YYDEBUG
const char * const yyname[] =
	{
"end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,"','",0,0,"'/'",0,0,0,0,0,0,0,0,0,0,0,0,0,"'='",0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"AREA",
"INTERFACE","ROUTERID","FIBUPDATE","REDISTRIBUTE","RTLABEL","RDOMAIN",
"RFC1583COMPAT","STUB","ROUTER","SPFDELAY","SPFHOLDTIME","EXTTAG","AUTHKEY",
"AUTHTYPE","AUTHMD","AUTHMDKEYID","METRIC","PASSIVE","HELLOINTERVAL",
"FASTHELLOINTERVAL","TRANSMITDELAY","RETRANSMITINTERVAL","ROUTERDEADTIME",
"ROUTERPRIORITY","SET","TYPE","YES","NO","MSEC","MINIMAL","DEMOTE","INCLUDE",
"ERROR","STRING","NUMBER",
};
const char * const yyrule[] =
	{"$accept : grammar",
"grammar :",
"grammar : grammar include '\\n'",
"grammar : grammar '\\n'",
"grammar : grammar conf_main '\\n'",
"grammar : grammar varset '\\n'",
"grammar : grammar area '\\n'",
"grammar : grammar error '\\n'",
"include : INCLUDE STRING",
"string : string STRING",
"string : STRING",
"yesno : YES",
"yesno : NO",
"no :",
"no : NO",
"msec : MSEC NUMBER",
"msec : NUMBER",
"varset : STRING '=' string",
"conf_main : ROUTERID STRING",
"conf_main : FIBUPDATE yesno",
"conf_main : redistribute",
"conf_main : RTLABEL STRING EXTTAG NUMBER",
"conf_main : RDOMAIN NUMBER",
"conf_main : RFC1583COMPAT yesno",
"conf_main : SPFDELAY msec",
"conf_main : SPFHOLDTIME msec",
"conf_main : STUB ROUTER yesno",
"conf_main : defaults",
"redistribute : no REDISTRIBUTE NUMBER '/' NUMBER optlist",
"redistribute : no REDISTRIBUTE STRING optlist",
"redistribute : no REDISTRIBUTE RTLABEL STRING optlist",
"optlist :",
"optlist : SET option",
"optlist : SET optnl '{' optnl optlist_l optnl '}'",
"optlist_l : optlist_l comma option",
"optlist_l : option",
"option : METRIC NUMBER",
"option : TYPE NUMBER",
"authmd : AUTHMD NUMBER STRING",
"authmdkeyid : AUTHMDKEYID NUMBER",
"authtype : AUTHTYPE STRING",
"authkey : AUTHKEY STRING",
"defaults : METRIC NUMBER",
"defaults : ROUTERPRIORITY NUMBER",
"defaults : ROUTERDEADTIME deadtime",
"defaults : TRANSMITDELAY NUMBER",
"defaults : HELLOINTERVAL NUMBER",
"defaults : FASTHELLOINTERVAL MSEC NUMBER",
"defaults : RETRANSMITINTERVAL NUMBER",
"defaults : authtype",
"defaults : authkey",
"defaults : authmdkeyid",
"defaults : authmd",
"deadtime : NUMBER",
"deadtime : MINIMAL",
"optnl : '\\n' optnl",
"optnl :",
"nl : '\\n' optnl",
"comma : ','",
"comma :",
"$$1 :",
"area : AREA STRING $$1 '{' optnl areaopts_l '}'",
"demotecount : NUMBER",
"demotecount :",
"areaopts_l : areaopts_l areaoptsl nl",
"areaopts_l : areaoptsl optnl",
"areaoptsl : interface",
"areaoptsl : DEMOTE STRING demotecount",
"areaoptsl : defaults",
"areaoptsl : STUB",
"areaoptsl : STUB redistribute",
"$$2 :",
"interface : INTERFACE STRING $$2 interface_block",
"interface_block : '{' optnl interfaceopts_l '}'",
"interface_block : '{' optnl '}'",
"interface_block :",
"interfaceopts_l : interfaceopts_l interfaceoptsl nl",
"interfaceopts_l : interfaceoptsl optnl",
"interfaceoptsl : PASSIVE",
"interfaceoptsl : DEMOTE STRING",
"interfaceoptsl : defaults",
};
#endif
#ifdef YYSTACKSIZE
#undef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 10000
#define YYMAXDEPTH 10000
#endif
#endif
#define YYINITSTACKSIZE 200
/* LINTUSED */
int yydebug;
int yynerrs;
int yyerrflag;
int yychar;
short *yyssp;
YYSTYPE *yyvsp;
YYSTYPE yyval;
YYSTYPE yylval;
short *yyss;
short *yysslim;
YYSTYPE *yyvs;
unsigned int yystacksize;
int yyparse(void);
#line 700 "parse.y"

struct keywords {
	const char	*k_name;
	int		 k_val;
};

int
yyerror(const char *fmt, ...)
{
	va_list		 ap;
	char		*msg;

	file->errors++;
	va_start(ap, fmt);
	if (vasprintf(&msg, fmt, ap) == -1)
		fatalx("yyerror vasprintf");
	va_end(ap);
	logit(LOG_CRIT, "%s:%d: %s", file->name, yylval.lineno, msg);
	free(msg);
	return (0);
}

int
kw_cmp(const void *k, const void *e)
{
	return (strcmp(k, ((const struct keywords *)e)->k_name));
}

int
lookup(char *s)
{
	/* this has to be sorted always */
	static const struct keywords keywords[] = {
		{"area",		AREA},
		{"auth-key",		AUTHKEY},
		{"auth-md",		AUTHMD},
		{"auth-md-keyid",	AUTHMDKEYID},
		{"auth-type",		AUTHTYPE},
		{"demote",		DEMOTE},
		{"external-tag",	EXTTAG},
		{"fast-hello-interval",	FASTHELLOINTERVAL},
		{"fib-update",		FIBUPDATE},
		{"hello-interval",	HELLOINTERVAL},
		{"include",		INCLUDE},
		{"interface",		INTERFACE},
		{"metric",		METRIC},
		{"minimal",		MINIMAL},
		{"msec",		MSEC},
		{"no",			NO},
		{"passive",		PASSIVE},
		{"rdomain",		RDOMAIN},
		{"redistribute",	REDISTRIBUTE},
		{"retransmit-interval",	RETRANSMITINTERVAL},
		{"rfc1583compat",	RFC1583COMPAT},
		{"router",		ROUTER},
		{"router-dead-time",	ROUTERDEADTIME},
		{"router-id",		ROUTERID},
		{"router-priority",	ROUTERPRIORITY},
		{"rtlabel",		RTLABEL},
		{"set",			SET},
		{"spf-delay",		SPFDELAY},
		{"spf-holdtime",	SPFHOLDTIME},
		{"stub",		STUB},
		{"transmit-delay",	TRANSMITDELAY},
		{"type",		TYPE},
		{"yes",			YES}
	};
	const struct keywords	*p;

	p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
	    sizeof(keywords[0]), kw_cmp);

	if (p)
		return (p->k_val);
	else
		return (STRING);
}

#define MAXPUSHBACK	128

u_char	*parsebuf;
int	 parseindex;
u_char	 pushback_buffer[MAXPUSHBACK];
int	 pushback_index = 0;

int
lgetc(int quotec)
{
	int		c, next;

	if (parsebuf) {
		/* Read character from the parsebuffer instead of input. */
		if (parseindex >= 0) {
			c = parsebuf[parseindex++];
			if (c != '\0')
				return (c);
			parsebuf = NULL;
		} else
			parseindex++;
	}

	if (pushback_index)
		return (pushback_buffer[--pushback_index]);

	if (quotec) {
		if ((c = getc(file->stream)) == EOF) {
			yyerror("reached end of file while parsing "
			    "quoted string");
			if (file == topfile || popfile() == EOF)
				return (EOF);
			return (quotec);
		}
		return (c);
	}

	while ((c = getc(file->stream)) == '\\') {
		next = getc(file->stream);
		if (next != '\n') {
			c = next;
			break;
		}
		yylval.lineno = file->lineno;
		file->lineno++;
	}

	while (c == EOF) {
		if (file == topfile || popfile() == EOF)
			return (EOF);
		c = getc(file->stream);
	}
	return (c);
}

int
lungetc(int c)
{
	if (c == EOF)
		return (EOF);
	if (parsebuf) {
		parseindex--;
		if (parseindex >= 0)
			return (c);
	}
	if (pushback_index < MAXPUSHBACK-1)
		return (pushback_buffer[pushback_index++] = c);
	else
		return (EOF);
}

int
findeol(void)
{
	int	c;

	parsebuf = NULL;

	/* skip to either EOF or the first real EOL */
	while (1) {
		if (pushback_index)
			c = pushback_buffer[--pushback_index];
		else
			c = lgetc(0);
		if (c == '\n') {
			file->lineno++;
			break;
		}
		if (c == EOF)
			break;
	}
	return (ERROR);
}

int
yylex(void)
{
	u_char	 buf[8096];
	u_char	*p, *val;
	int	 quotec, next, c;
	int	 token;

top:
	p = buf;
	while ((c = lgetc(0)) == ' ' || c == '\t')
		; /* nothing */

	yylval.lineno = file->lineno;
	if (c == '#')
		while ((c = lgetc(0)) != '\n' && c != EOF)
			; /* nothing */
	if (c == '$' && parsebuf == NULL) {
		while (1) {
			if ((c = lgetc(0)) == EOF)
				return (0);

			if (p + 1 >= buf + sizeof(buf) - 1) {
				yyerror("string too long");
				return (findeol());
			}
			if (isalnum(c) || c == '_') {
				*p++ = c;
				continue;
			}
			*p = '\0';
			lungetc(c);
			break;
		}
		val = symget(buf);
		if (val == NULL) {
			yyerror("macro '%s' not defined", buf);
			return (findeol());
		}
		parsebuf = val;
		parseindex = 0;
		goto top;
	}

	switch (c) {
	case '\'':
	case '"':
		quotec = c;
		while (1) {
			if ((c = lgetc(quotec)) == EOF)
				return (0);
			if (c == '\n') {
				file->lineno++;
				continue;
			} else if (c == '\\') {
				if ((next = lgetc(quotec)) == EOF)
					return (0);
				if (next == quotec || c == ' ' || c == '\t')
					c = next;
				else if (next == '\n') {
					file->lineno++;
					continue;
				} else
					lungetc(next);
			} else if (c == quotec) {
				*p = '\0';
				break;
			} else if (c == '\0') {
				yyerror("syntax error");
				return (findeol());
			}
			if (p + 1 >= buf + sizeof(buf) - 1) {
				yyerror("string too long");
				return (findeol());
			}
			*p++ = c;
		}
		yylval.v.string = strdup(buf);
		if (yylval.v.string == NULL)
			err(1, "yylex: strdup");
		return (STRING);
	}

#define allowed_to_end_number(x) \
	(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')

	if (c == '-' || isdigit(c)) {
		do {
			*p++ = c;
			if ((unsigned)(p-buf) >= sizeof(buf)) {
				yyerror("string too long");
				return (findeol());
			}
		} while ((c = lgetc(0)) != EOF && isdigit(c));
		lungetc(c);
		if (p == buf + 1 && buf[0] == '-')
			goto nodigits;
		if (c == EOF || allowed_to_end_number(c)) {
			const char *errstr = NULL;

			*p = '\0';
			yylval.v.number = strtonum(buf, LLONG_MIN,
			    LLONG_MAX, &errstr);
			if (errstr) {
				yyerror("\"%s\" invalid number: %s",
				    buf, errstr);
				return (findeol());
			}
			return (NUMBER);
		} else {
nodigits:
			while (p > buf + 1)
				lungetc(*--p);
			c = *--p;
			if (c == '-')
				return (c);
		}
	}

#define allowed_in_string(x) \
	(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
	x != '{' && x != '}' && \
	x != '!' && x != '=' && x != '#' && \
	x != ','))

	if (isalnum(c) || c == ':' || c == '_') {
		do {
			*p++ = c;
			if ((unsigned)(p-buf) >= sizeof(buf)) {
				yyerror("string too long");
				return (findeol());
			}
		} while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
		lungetc(c);
		*p = '\0';
		if ((token = lookup(buf)) == STRING)
			if ((yylval.v.string = strdup(buf)) == NULL)
				err(1, "yylex: strdup");
		return (token);
	}
	if (c == '\n') {
		yylval.lineno = file->lineno;
		file->lineno++;
	}
	if (c == EOF)
		return (0);
	return (c);
}

int
check_file_secrecy(int fd, const char *fname)
{
	struct stat	st;

	if (fstat(fd, &st)) {
		log_warn("cannot stat %s", fname);
		return (-1);
	}
	if (st.st_uid != 0 && st.st_uid != getuid()) {
		log_warnx("%s: owner not root or current user", fname);
		return (-1);
	}
	if (st.st_mode & (S_IWGRP | S_IXGRP | S_IRWXO)) {
		log_warnx("%s: group writable or world read/writable", fname);
		return (-1);
	}
	return (0);
}

struct file *
pushfile(const char *name, int secret)
{
	struct file	*nfile;

	if ((nfile = calloc(1, sizeof(struct file))) == NULL) {
		log_warn("malloc");
		return (NULL);
	}
	if ((nfile->name = strdup(name)) == NULL) {
		log_warn("malloc");
		free(nfile);
		return (NULL);
	}
	if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
		log_warn("%s", nfile->name);
		free(nfile->name);
		free(nfile);
		return (NULL);
	} else if (secret &&
	    check_file_secrecy(fileno(nfile->stream), nfile->name)) {
		fclose(nfile->stream);
		free(nfile->name);
		free(nfile);
		return (NULL);
	}
	nfile->lineno = 1;
	TAILQ_INSERT_TAIL(&files, nfile, entry);
	return (nfile);
}

int
popfile(void)
{
	struct file	*prev;

	if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
		prev->errors += file->errors;

	TAILQ_REMOVE(&files, file, entry);
	fclose(file->stream);
	free(file->name);
	free(file);
	file = prev;
	return (file ? 0 : EOF);
}

struct ospfd_conf *
parse_config(char *filename, int opts)
{
	struct sym	*sym, *next;

	if ((conf = calloc(1, sizeof(struct ospfd_conf))) == NULL)
		fatal("parse_config");
	conf->opts = opts;
	if (conf->opts & OSPFD_OPT_STUB_ROUTER)
		conf->flags |= OSPFD_FLAG_STUB_ROUTER;

	bzero(&globaldefs, sizeof(globaldefs));
	defs = &globaldefs;
	TAILQ_INIT(&defs->md_list);
	defs->dead_interval = DEFAULT_RTR_DEAD_TIME;
	defs->fast_hello_interval = DEFAULT_FAST_INTERVAL;
	defs->transmit_delay = DEFAULT_TRANSMIT_DELAY;
	defs->hello_interval = DEFAULT_HELLO_INTERVAL;
	defs->rxmt_interval = DEFAULT_RXMT_INTERVAL;
	defs->metric = DEFAULT_METRIC;
	defs->priority = DEFAULT_PRIORITY;

	conf->spf_delay = DEFAULT_SPF_DELAY;
	conf->spf_hold_time = DEFAULT_SPF_HOLDTIME;
	conf->spf_state = SPF_IDLE;

	if ((file = pushfile(filename, !(conf->opts & OSPFD_OPT_NOACTION))) == NULL) {
		free(conf);
		return (NULL);
	}
	topfile = file;

	LIST_INIT(&conf->area_list);
	LIST_INIT(&conf->cand_list);
	SIMPLEQ_INIT(&conf->redist_list);

	yyparse();
	errors = file->errors;
	popfile();

	/* Free macros and check which have not been used. */
	TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
		if ((conf->opts & OSPFD_OPT_VERBOSE2) && !sym->used)
			fprintf(stderr, "warning: macro '%s' not "
			    "used\n", sym->nam);
		if (!sym->persist) {
			free(sym->nam);
			free(sym->val);
			TAILQ_REMOVE(&symhead, sym, entry);
			free(sym);
		}
	}

	/* free global config defaults */
	md_list_clr(&globaldefs.md_list);

	/* check that all interfaces belong to the configured rdomain */
	errors += conf_check_rdomain(conf->rdomain);

	if (errors) {
		clear_config(conf);
		return (NULL);
	}

	if (conf->rtr_id.s_addr == 0)
		conf->rtr_id.s_addr = get_rtr_id();

	return (conf);
}

int
symset(const char *nam, const char *val, int persist)
{
	struct sym	*sym;

	TAILQ_FOREACH(sym, &symhead, entry) {
		if (strcmp(nam, sym->nam) == 0)
			break;
	}

	if (sym != NULL) {
		if (sym->persist == 1)
			return (0);
		else {
			free(sym->nam);
			free(sym->val);
			TAILQ_REMOVE(&symhead, sym, entry);
			free(sym);
		}
	}
	if ((sym = calloc(1, sizeof(*sym))) == NULL)
		return (-1);

	sym->nam = strdup(nam);
	if (sym->nam == NULL) {
		free(sym);
		return (-1);
	}
	sym->val = strdup(val);
	if (sym->val == NULL) {
		free(sym->nam);
		free(sym);
		return (-1);
	}
	sym->used = 0;
	sym->persist = persist;
	TAILQ_INSERT_TAIL(&symhead, sym, entry);
	return (0);
}

int
cmdline_symset(char *s)
{
	char	*sym, *val;
	int	ret;
	size_t	len;

	if ((val = strrchr(s, '=')) == NULL)
		return (-1);

	len = strlen(s) - strlen(val) + 1;
	if ((sym = malloc(len)) == NULL)
		errx(1, "cmdline_symset: malloc");

	strlcpy(sym, s, len);

	ret = symset(sym, val + 1, 1);
	free(sym);

	return (ret);
}

char *
symget(const char *nam)
{
	struct sym	*sym;

	TAILQ_FOREACH(sym, &symhead, entry) {
		if (strcmp(nam, sym->nam) == 0) {
			sym->used = 1;
			return (sym->val);
		}
	}
	return (NULL);
}

struct area *
conf_get_area(struct in_addr id)
{
	struct area	*a;

	a = area_find(conf, id);
	if (a)
		return (a);
	a = area_new();
	LIST_INSERT_HEAD(&conf->area_list, a, entry);

	a->id.s_addr = id.s_addr;

	return (a);
}

struct iface *
conf_get_if(struct kif *kif, struct kif_addr *ka)
{
	struct area	*a;
	struct iface	*i;

	LIST_FOREACH(a, &conf->area_list, entry)
		LIST_FOREACH(i, &a->iface_list, entry)
			if (i->ifindex == kif->ifindex &&
			    i->addr.s_addr == ka->addr.s_addr) {
				yyerror("interface %s already configured",
				    kif->ifname);
				return (NULL);
			}

	i = if_new(kif, ka);
	i->auth_keyid = 1;

	return (i);
}

int
conf_check_rdomain(unsigned int rdomain)
{
	struct area	*a;
	struct iface	*i;
	int		 errs = 0;

	LIST_FOREACH(a, &conf->area_list, entry)
		LIST_FOREACH(i, &a->iface_list, entry)
			if (i->rdomain != rdomain) {
				logit(LOG_CRIT,
				    "interface %s not in rdomain %u",
				    i->name, rdomain);
				errs++;
			}

	return (errs);
}

void
clear_config(struct ospfd_conf *xconf)
{
	struct area	*a;

	while ((a = LIST_FIRST(&xconf->area_list)) != NULL) {
		LIST_REMOVE(a, entry);
		area_del(a);
	}

	free(xconf);
}

u_int32_t
get_rtr_id(void)
{
	struct ifaddrs		*ifap, *ifa;
	u_int32_t		 ip = 0, cur, localnet;

	localnet = htonl(INADDR_LOOPBACK & IN_CLASSA_NET);

	if (getifaddrs(&ifap) == -1)
		fatal("getifaddrs");

	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
		if (strncmp(ifa->ifa_name, "carp", 4) == 0)
			continue;
		if (ifa->ifa_addr->sa_family != AF_INET)
			continue;
		cur = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
		if ((cur & localnet) == localnet)	/* skip 127/8 */
			continue;
		if (ntohl(cur) < ntohl(ip) || ip == 0)
			ip = cur;
	}
	freeifaddrs(ifap);

	if (ip == 0)
		fatal("router-id is 0.0.0.0");

	return (ip);
}

int
host(const char *s, struct in_addr *addr, struct in_addr *mask)
{
	struct in_addr		 ina;
	int			 bits = 32;

	bzero(&ina, sizeof(struct in_addr));
	if (strrchr(s, '/') != NULL) {
		if ((bits = inet_net_pton(AF_INET, s, &ina, sizeof(ina))) == -1)
			return (0);
	} else {
		if (inet_pton(AF_INET, s, &ina) != 1)
			return (0);
	}

	addr->s_addr = ina.s_addr;
	mask->s_addr = prefixlen2mask(bits);

	return (1);
}
#line 1107 "parse.c"
/* allocate initial stack or double stack size, up to YYMAXDEPTH */
static int yygrowstack(void)
{
    unsigned int newsize;
    long sslen;
    short *newss;
    YYSTYPE *newvs;

    if ((newsize = yystacksize) == 0)
        newsize = YYINITSTACKSIZE;
    else if (newsize >= YYMAXDEPTH)
        return -1;
    else if ((newsize *= 2) > YYMAXDEPTH)
        newsize = YYMAXDEPTH;
    sslen = yyssp - yyss;
#ifdef SIZE_MAX
#define YY_SIZE_MAX SIZE_MAX
#else
#define YY_SIZE_MAX 0xffffffffU
#endif
    if (newsize && YY_SIZE_MAX / newsize < sizeof *newss)
        goto bail;
    newss = yyss ? (short *)realloc(yyss, newsize * sizeof *newss) :
      (short *)malloc(newsize * sizeof *newss); /* overflow check above */
    if (newss == NULL)
        goto bail;
    yyss = newss;
    yyssp = newss + sslen;
    if (newsize && YY_SIZE_MAX / newsize < sizeof *newvs)
        goto bail;
    newvs = yyvs ? (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs) :
      (YYSTYPE *)malloc(newsize * sizeof *newvs); /* overflow check above */
    if (newvs == NULL)
        goto bail;
    yyvs = newvs;
    yyvsp = newvs + sslen;
    yystacksize = newsize;
    yysslim = yyss + newsize - 1;
    return 0;
bail:
    if (yyss)
            free(yyss);
    if (yyvs)
            free(yyvs);
    yyss = yyssp = NULL;
    yyvs = yyvsp = NULL;
    yystacksize = 0;
    return -1;
}

#define YYABORT goto yyabort
#define YYREJECT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
yyparse(void)
{
    int yym, yyn, yystate;
#if YYDEBUG
    const char *yys;

    if ((yys = getenv("YYDEBUG")))
    {
        yyn = *yys;
        if (yyn >= '0' && yyn <= '9')
            yydebug = yyn - '0';
    }
#endif /* YYDEBUG */

    yynerrs = 0;
    yyerrflag = 0;
    yychar = (-1);

    if (yyss == NULL && yygrowstack()) goto yyoverflow;
    yyssp = yyss;
    yyvsp = yyvs;
    *yyssp = yystate = 0;

yyloop:
    if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
    if (yychar < 0)
    {
        if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
        if (yydebug)
        {
            yys = 0;
            if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
            if (!yys) yys = "illegal-symbol";
            printf("%sdebug: state %d, reading %d (%s)\n",
                    YYPREFIX, yystate, yychar, yys);
        }
#endif
    }
    if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
            yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
    {
#if YYDEBUG
        if (yydebug)
            printf("%sdebug: state %d, shifting to state %d\n",
                    YYPREFIX, yystate, yytable[yyn]);
#endif
        if (yyssp >= yysslim && yygrowstack())
        {
            goto yyoverflow;
        }
        *++yyssp = yystate = yytable[yyn];
        *++yyvsp = yylval;
        yychar = (-1);
        if (yyerrflag > 0)  --yyerrflag;
        goto yyloop;
    }
    if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
            yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
    {
        yyn = yytable[yyn];
        goto yyreduce;
    }
    if (yyerrflag) goto yyinrecovery;
#if defined(__GNUC__)
    goto yynewerror;
#endif
yynewerror:
    yyerror("syntax error");
#if defined(__GNUC__)
    goto yyerrlab;
#endif
yyerrlab:
    ++yynerrs;
yyinrecovery:
    if (yyerrflag < 3)
    {
        yyerrflag = 3;
        for (;;)
        {
            if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
                    yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
            {
#if YYDEBUG
                if (yydebug)
                    printf("%sdebug: state %d, error recovery shifting\
 to state %d\n", YYPREFIX, *yyssp, yytable[yyn]);
#endif
                if (yyssp >= yysslim && yygrowstack())
                {
                    goto yyoverflow;
                }
                *++yyssp = yystate = yytable[yyn];
                *++yyvsp = yylval;
                goto yyloop;
            }
            else
            {
#if YYDEBUG
                if (yydebug)
                    printf("%sdebug: error recovery discarding state %d\n",
                            YYPREFIX, *yyssp);
#endif
                if (yyssp <= yyss) goto yyabort;
                --yyssp;
                --yyvsp;
            }
        }
    }
    else
    {
        if (yychar == 0) goto yyabort;
#if YYDEBUG
        if (yydebug)
        {
            yys = 0;
            if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
            if (!yys) yys = "illegal-symbol";
            printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
                    YYPREFIX, yystate, yychar, yys);
        }
#endif
        yychar = (-1);
        goto yyloop;
    }
yyreduce:
#if YYDEBUG
    if (yydebug)
        printf("%sdebug: state %d, reducing by rule %d (%s)\n",
                YYPREFIX, yystate, yyn, yyrule[yyn]);
#endif
    yym = yylen[yyn];
    if (yym)
        yyval = yyvsp[1-yym];
    else
        memset(&yyval, 0, sizeof yyval);
    switch (yyn)
    {
case 7:
#line 150 "parse.y"
{ file->errors++; }
break;
case 8:
#line 153 "parse.y"
{
			struct file	*nfile;

			if ((nfile = pushfile(yyvsp[0].v.string, 1)) == NULL) {
				yyerror("failed to include file %s", yyvsp[0].v.string);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);

			file = nfile;
			lungetc('\n');
		}
break;
case 9:
#line 168 "parse.y"
{
			if (asprintf(&yyval.v.string, "%s %s", yyvsp[-1].v.string, yyvsp[0].v.string) == -1) {
				free(yyvsp[-1].v.string);
				free(yyvsp[0].v.string);
				yyerror("string: asprintf");
				YYERROR;
			}
			free(yyvsp[-1].v.string);
			free(yyvsp[0].v.string);
		}
break;
case 11:
#line 181 "parse.y"
{ yyval.v.number = 1; }
break;
case 12:
#line 182 "parse.y"
{ yyval.v.number = 0; }
break;
case 13:
#line 185 "parse.y"
{ yyval.v.number = 0; }
break;
case 14:
#line 186 "parse.y"
{ yyval.v.number = 1; }
break;
case 15:
#line 189 "parse.y"
{
			yyval.v.number = yyvsp[0].v.number;
		}
break;
case 16:
#line 192 "parse.y"
{
			yyval.v.number = yyvsp[0].v.number * 1000;
		}
break;
case 17:
#line 197 "parse.y"
{
			char *s = yyvsp[-2].v.string;
			if (conf->opts & OSPFD_OPT_VERBOSE)
				printf("%s = \"%s\"\n", yyvsp[-2].v.string, yyvsp[0].v.string);
			while (*s++) {
				if (isspace((unsigned char)*s)) {
					yyerror("macro name cannot contain "
					    "whitespace");
					YYERROR;
				}
			}
			if (symset(yyvsp[-2].v.string, yyvsp[0].v.string, 0) == -1)
				fatal("cannot store variable");
			free(yyvsp[-2].v.string);
			free(yyvsp[0].v.string);
		}
break;
case 18:
#line 215 "parse.y"
{
			if (!inet_aton(yyvsp[0].v.string, &conf->rtr_id)) {
				yyerror("error parsing router-id");
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
		}
break;
case 19:
#line 223 "parse.y"
{
			if (yyvsp[0].v.number == 0)
				conf->flags |= OSPFD_FLAG_NO_FIB_UPDATE;
			else
				conf->flags &= ~OSPFD_FLAG_NO_FIB_UPDATE;
		}
break;
case 20:
#line 229 "parse.y"
{
			SIMPLEQ_INSERT_TAIL(&conf->redist_list, yyvsp[0].v.redist, entry);
			conf->redistribute = 1;
		}
break;
case 21:
#line 233 "parse.y"
{
			if (yyvsp[0].v.number < 0 || yyvsp[0].v.number > UINT_MAX) {
				yyerror("invalid external route tag");
				free(yyvsp[-2].v.string);
				YYERROR;
			}
			rtlabel_tag(rtlabel_name2id(yyvsp[-2].v.string), yyvsp[0].v.number);
			free(yyvsp[-2].v.string);
		}
break;
case 22:
#line 242 "parse.y"
{
			if (yyvsp[0].v.number < 0 || yyvsp[0].v.number > RT_TABLEID_MAX) {
				yyerror("invalid rdomain");
				YYERROR;
			}
			conf->rdomain = yyvsp[0].v.number;
		}
break;
case 23:
#line 249 "parse.y"
{
			conf->rfc1583compat = yyvsp[0].v.number;
		}
break;
case 24:
#line 252 "parse.y"
{
			if (yyvsp[0].v.number < MIN_SPF_DELAY || yyvsp[0].v.number > MAX_SPF_DELAY) {
				yyerror("spf-delay out of range "
				    "(%d-%d)", MIN_SPF_DELAY,
				    MAX_SPF_DELAY);
				YYERROR;
			}
			conf->spf_delay = yyvsp[0].v.number;
		}
break;
case 25:
#line 261 "parse.y"
{
			if (yyvsp[0].v.number < MIN_SPF_HOLDTIME || yyvsp[0].v.number > MAX_SPF_HOLDTIME) {
				yyerror("spf-holdtime out of range "
				    "(%d-%d)", MIN_SPF_HOLDTIME,
				    MAX_SPF_HOLDTIME);
				YYERROR;
			}
			conf->spf_hold_time = yyvsp[0].v.number;
		}
break;
case 26:
#line 270 "parse.y"
{
			if (yyvsp[0].v.number)
				conf->flags |= OSPFD_FLAG_STUB_ROUTER;
			else
				/* allow to force non stub mode */
				conf->flags &= ~OSPFD_FLAG_STUB_ROUTER;
		}
break;
case 28:
#line 281 "parse.y"
{
			struct redistribute	*r;

			if ((r = calloc(1, sizeof(*r))) == NULL)
				fatal(NULL);
			r->type = REDIST_ADDR;
			if (yyvsp[-3].v.number < 0 || yyvsp[-3].v.number > 255 || yyvsp[-1].v.number < 1 || yyvsp[-1].v.number > 32) {
				yyerror("bad network: %llu/%llu", yyvsp[-3].v.number, yyvsp[-1].v.number);
				free(r);
				YYERROR;
			}
			r->addr.s_addr = htonl(yyvsp[-3].v.number << IN_CLASSA_NSHIFT);
			r->mask.s_addr = prefixlen2mask(yyvsp[-1].v.number);

			if (yyvsp[-5].v.number)
				r->type |= REDIST_NO;
			r->metric = yyvsp[0].v.number;
			yyval.v.redist = r;
		}
break;
case 29:
#line 300 "parse.y"
{
			struct redistribute	*r;

			if ((r = calloc(1, sizeof(*r))) == NULL)
				fatal(NULL);
			if (!strcmp(yyvsp[-1].v.string, "default"))
				r->type = REDIST_DEFAULT;
			else if (!strcmp(yyvsp[-1].v.string, "static"))
				r->type = REDIST_STATIC;
			else if (!strcmp(yyvsp[-1].v.string, "connected"))
				r->type = REDIST_CONNECTED;
			else if (host(yyvsp[-1].v.string, &r->addr, &r->mask))
				r->type = REDIST_ADDR;
			else {
				yyerror("unknown redistribute type");
				free(yyvsp[-1].v.string);
				free(r);
				YYERROR;
			}

			if (yyvsp[-3].v.number)
				r->type |= REDIST_NO;
			r->metric = yyvsp[0].v.number;
			free(yyvsp[-1].v.string);
			yyval.v.redist = r;
		}
break;
case 30:
#line 326 "parse.y"
{
			struct redistribute	*r;

			if ((r = calloc(1, sizeof(*r))) == NULL)
				fatal(NULL);
			r->type = REDIST_LABEL;
			r->label = rtlabel_name2id(yyvsp[-1].v.string);
			if (yyvsp[-4].v.number)
				r->type |= REDIST_NO;
			r->metric = yyvsp[0].v.number;
			free(yyvsp[-1].v.string);

			yyval.v.redist = r;
		}
break;
case 31:
#line 342 "parse.y"
{ yyval.v.number = DEFAULT_REDIST_METRIC; }
break;
case 32:
#line 343 "parse.y"
{
			yyval.v.number = yyvsp[0].v.number;
			if ((yyval.v.number & LSA_METRIC_MASK) == 0)
				yyval.v.number |= DEFAULT_REDIST_METRIC;
		}
break;
case 33:
#line 348 "parse.y"
{
			yyval.v.number = yyvsp[-2].v.number;
			if ((yyval.v.number & LSA_METRIC_MASK) == 0)
				yyval.v.number |= DEFAULT_REDIST_METRIC;
		}
break;
case 34:
#line 355 "parse.y"
{
			if (yyvsp[-2].v.number & LSA_ASEXT_E_FLAG && yyvsp[0].v.number & LSA_ASEXT_E_FLAG) {
				yyerror("redistribute type already defined");
				YYERROR;
			}
			if (yyvsp[-2].v.number & LSA_METRIC_MASK && yyvsp[0].v.number & LSA_METRIC_MASK) {
				yyerror("redistribute metric already defined");
				YYERROR;
			}
			yyval.v.number = yyvsp[-2].v.number | yyvsp[0].v.number;
		}
break;
case 35:
#line 366 "parse.y"
{ yyval.v.number = yyvsp[0].v.number; }
break;
case 36:
#line 369 "parse.y"
{
			if (yyvsp[0].v.number == 0 || yyvsp[0].v.number > MAX_METRIC) {
				yyerror("invalid redistribute metric");
				YYERROR;
			}
			yyval.v.number = yyvsp[0].v.number;
		}
break;
case 37:
#line 376 "parse.y"
{
			switch (yyvsp[0].v.number) {
			case 1:
				yyval.v.number = 0;
				break;
			case 2:
				yyval.v.number = LSA_ASEXT_E_FLAG;
				break;
			default:
				yyerror("only external type 1 and 2 allowed");
				YYERROR;
			}
		}
break;
case 38:
#line 391 "parse.y"
{
			if (yyvsp[-1].v.number < MIN_MD_ID || yyvsp[-1].v.number > MAX_MD_ID) {
				yyerror("auth-md key-id out of range "
				    "(%d-%d)", MIN_MD_ID, MAX_MD_ID);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			if (strlen(yyvsp[0].v.string) > MD5_DIGEST_LENGTH) {
				yyerror("auth-md key length out of range "
				    "(max length %d)",
				    MD5_DIGEST_LENGTH);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			md_list_add(&defs->md_list, yyvsp[-1].v.number, yyvsp[0].v.string);
			free(yyvsp[0].v.string);
		}
break;
case 39:
#line 409 "parse.y"
{
			if (yyvsp[0].v.number < MIN_MD_ID || yyvsp[0].v.number > MAX_MD_ID) {
				yyerror("auth-md-keyid out of range "
				    "(%d-%d)", MIN_MD_ID, MAX_MD_ID);
				YYERROR;
			}
			defs->auth_keyid = yyvsp[0].v.number;
		}
break;
case 40:
#line 418 "parse.y"
{
			enum auth_type	type;

			if (!strcmp(yyvsp[0].v.string, "none"))
				type = AUTH_NONE;
			else if (!strcmp(yyvsp[0].v.string, "simple"))
				type = AUTH_SIMPLE;
			else if (!strcmp(yyvsp[0].v.string, "crypt"))
				type = AUTH_CRYPT;
			else {
				yyerror("unknown auth-type");
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
			defs->auth_type = type;
		}
break;
case 41:
#line 437 "parse.y"
{
			if (strlen(yyvsp[0].v.string) > MAX_SIMPLE_AUTH_LEN) {
				yyerror("auth-key too long (max length %d)",
				    MAX_SIMPLE_AUTH_LEN);
					free(yyvsp[0].v.string);
					YYERROR;
			}
			strncpy(defs->auth_key, yyvsp[0].v.string,
			    sizeof(defs->auth_key));
			free(yyvsp[0].v.string);
		}
break;
case 42:
#line 450 "parse.y"
{
			if (yyvsp[0].v.number < MIN_METRIC || yyvsp[0].v.number > MAX_METRIC) {
				yyerror("metric out of range (%d-%d)",
				    MIN_METRIC, MAX_METRIC);
				YYERROR;
			}
			defs->metric = yyvsp[0].v.number;
		}
break;
case 43:
#line 458 "parse.y"
{
			if (yyvsp[0].v.number < MIN_PRIORITY || yyvsp[0].v.number > MAX_PRIORITY) {
				yyerror("router-priority out of range (%d-%d)",
				    MIN_PRIORITY, MAX_PRIORITY);
				YYERROR;
			}
			defs->priority = yyvsp[0].v.number;
		}
break;
case 44:
#line 466 "parse.y"
{
			defs->dead_interval = yyvsp[0].v.number;
		}
break;
case 45:
#line 469 "parse.y"
{
			if (yyvsp[0].v.number < MIN_TRANSMIT_DELAY ||
			    yyvsp[0].v.number > MAX_TRANSMIT_DELAY) {
				yyerror("transmit-delay out of range (%d-%d)",
				    MIN_TRANSMIT_DELAY, MAX_TRANSMIT_DELAY);
				YYERROR;
			}
			defs->transmit_delay = yyvsp[0].v.number;
		}
break;
case 46:
#line 478 "parse.y"
{
			if (yyvsp[0].v.number < MIN_HELLO_INTERVAL ||
			    yyvsp[0].v.number > MAX_HELLO_INTERVAL) {
				yyerror("hello-interval out of range (%d-%d)",
				    MIN_HELLO_INTERVAL, MAX_HELLO_INTERVAL);
				YYERROR;
			}
			defs->hello_interval = yyvsp[0].v.number;
		}
break;
case 47:
#line 487 "parse.y"
{
			if (yyvsp[0].v.number < MIN_FAST_INTERVAL ||
			    yyvsp[0].v.number > MAX_FAST_INTERVAL) {
				yyerror("fast-hello-interval msec out of "
				    "range (%d-%d)", MIN_FAST_INTERVAL,
				    MAX_FAST_INTERVAL);
				YYERROR;
			}
			defs->fast_hello_interval = yyvsp[0].v.number;
		}
break;
case 48:
#line 497 "parse.y"
{
			if (yyvsp[0].v.number < MIN_RXMT_INTERVAL || yyvsp[0].v.number > MAX_RXMT_INTERVAL) {
				yyerror("retransmit-interval out of range "
				    "(%d-%d)", MIN_RXMT_INTERVAL,
				    MAX_RXMT_INTERVAL);
				YYERROR;
			}
			defs->rxmt_interval = yyvsp[0].v.number;
		}
break;
case 53:
#line 512 "parse.y"
{
			if (yyvsp[0].v.number < MIN_RTR_DEAD_TIME || yyvsp[0].v.number > MAX_RTR_DEAD_TIME) {
				yyerror("router-dead-time out of range (%d-%d)",
				    MIN_RTR_DEAD_TIME, MAX_RTR_DEAD_TIME);
				YYERROR;
			}
			yyval.v.number = yyvsp[0].v.number;
		}
break;
case 54:
#line 520 "parse.y"
{
			yyval.v.number = FAST_RTR_DEAD_TIME;
		}
break;
case 60:
#line 535 "parse.y"
{
			struct in_addr	id;
			if (inet_aton(yyvsp[0].v.string, &id) == 0) {
				yyerror("error parsing area");
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
			area = conf_get_area(id);

			memcpy(&areadefs, defs, sizeof(areadefs));
			md_list_copy(&areadefs.md_list, &defs->md_list);
			defs = &areadefs;
		}
break;
case 61:
#line 548 "parse.y"
{
			area = NULL;
			md_list_clr(&defs->md_list);
			defs = &globaldefs;
		}
break;
case 62:
#line 555 "parse.y"
{ yyval.v.number = yyvsp[0].v.number; }
break;
case 63:
#line 556 "parse.y"
{ yyval.v.number = 1; }
break;
case 67:
#line 564 "parse.y"
{
			if (yyvsp[0].v.number < 1 || yyvsp[0].v.number > 255) {
				yyerror("demote count out of range (1-255)");
				free(yyvsp[-1].v.string);
				YYERROR;
			}
			area->demote_level = yyvsp[0].v.number;
			if (strlcpy(area->demote_group, yyvsp[-1].v.string,
			    sizeof(area->demote_group)) >=
			    sizeof(area->demote_group)) {
				yyerror("demote group name \"%s\" too long",
				    yyvsp[-1].v.string);
				free(yyvsp[-1].v.string);
				YYERROR;
			}
			free(yyvsp[-1].v.string);
			if (carp_demote_init(area->demote_group,
			    conf->opts & OSPFD_OPT_FORCE_DEMOTE) == -1) {
				yyerror("error initializing group \"%s\"",
				    area->demote_group);
				YYERROR;
			}
		}
break;
case 69:
#line 588 "parse.y"
{ area->stub = 1; }
break;
case 70:
#line 589 "parse.y"
{
			area->stub = 1;
			if (yyvsp[0].v.redist->type != REDIST_DEFAULT) {
				yyerror("bad redistribute option");
				YYERROR;
			}
			if (!SIMPLEQ_EMPTY(&area->redist_list)) {
				yyerror("area redistribute option only "
				    "allowed once");
				YYERROR;
			}
			SIMPLEQ_INSERT_TAIL(&area->redist_list, yyvsp[0].v.redist, entry);
		}
break;
case 71:
#line 604 "parse.y"
{
			struct kif	*kif;
			struct kif_addr	*ka = NULL;
			char		*s;
			struct in_addr	 addr;

			s = strchr(yyvsp[0].v.string, ':');
			if (s) {
				*s++ = '\0';
				if (inet_aton(s, &addr) == 0) {
					yyerror(
					    "error parsing interface address");
					free(yyvsp[0].v.string);
					YYERROR;
				}
			} else
				addr.s_addr = 0;

			if ((kif = kif_findname(yyvsp[0].v.string, addr, &ka)) == NULL) {
				yyerror("unknown interface %s", yyvsp[0].v.string);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			if (ka == NULL) {
				if (s)
					yyerror("address %s not configured on "
					    "interface %s", s, yyvsp[0].v.string);
				else
					yyerror("unnumbered interface %s", yyvsp[0].v.string);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
			iface = conf_get_if(kif, ka);
			if (iface == NULL)
				YYERROR;
			iface->area = area;
			LIST_INSERT_HEAD(&area->iface_list, iface, entry);

			memcpy(&ifacedefs, defs, sizeof(ifacedefs));
			md_list_copy(&ifacedefs.md_list, &defs->md_list);
			defs = &ifacedefs;
		}
break;
case 72:
#line 646 "parse.y"
{
			iface->dead_interval = defs->dead_interval;
			iface->fast_hello_interval = defs->fast_hello_interval;
			iface->transmit_delay = defs->transmit_delay;
			if (iface->dead_interval == FAST_RTR_DEAD_TIME)
				iface->hello_interval = 0;
			else
				iface->hello_interval = defs->hello_interval;
			iface->rxmt_interval = defs->rxmt_interval;
			iface->metric = defs->metric;
			iface->priority = defs->priority;
			iface->auth_type = defs->auth_type;
			iface->auth_keyid = defs->auth_keyid;
			memcpy(iface->auth_key, defs->auth_key,
			    sizeof(iface->auth_key));
			md_list_copy(&iface->auth_md_list, &defs->md_list);
			md_list_clr(&defs->md_list);
			iface = NULL;
			/* interface is always part of an area */
			defs = &areadefs;
		}
break;
case 78:
#line 678 "parse.y"
{ iface->passive = 1; }
break;
case 79:
#line 679 "parse.y"
{
			if (strlcpy(iface->demote_group, yyvsp[0].v.string,
			    sizeof(iface->demote_group)) >=
			    sizeof(iface->demote_group)) {
				yyerror("demote group name \"%s\" too long",
				    yyvsp[0].v.string);
				free(yyvsp[0].v.string);
				YYERROR;
			}
			free(yyvsp[0].v.string);
			if (carp_demote_init(iface->demote_group,
			    conf->opts & OSPFD_OPT_FORCE_DEMOTE) == -1) {
				yyerror("error initializing group \"%s\"",
				    iface->demote_group);
				YYERROR;
			}
		}
break;
#line 1934 "parse.c"
    }
    yyssp -= yym;
    yystate = *yyssp;
    yyvsp -= yym;
    yym = yylhs[yyn];
    if (yystate == 0 && yym == 0)
    {
#if YYDEBUG
        if (yydebug)
            printf("%sdebug: after reduction, shifting from state 0 to\
 state %d\n", YYPREFIX, YYFINAL);
#endif
        yystate = YYFINAL;
        *++yyssp = YYFINAL;
        *++yyvsp = yyval;
        if (yychar < 0)
        {
            if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
            if (yydebug)
            {
                yys = 0;
                if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
                if (!yys) yys = "illegal-symbol";
                printf("%sdebug: state %d, reading %d (%s)\n",
                        YYPREFIX, YYFINAL, yychar, yys);
            }
#endif
        }
        if (yychar == 0) goto yyaccept;
        goto yyloop;
    }
    if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
            yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
        yystate = yytable[yyn];
    else
        yystate = yydgoto[yym];
#if YYDEBUG
    if (yydebug)
        printf("%sdebug: after reduction, shifting from state %d \
to state %d\n", YYPREFIX, *yyssp, yystate);
#endif
    if (yyssp >= yysslim && yygrowstack())
    {
        goto yyoverflow;
    }
    *++yyssp = yystate;
    *++yyvsp = yyval;
    goto yyloop;
yyoverflow:
    yyerror("yacc stack overflow");
yyabort:
    if (yyss)
            free(yyss);
    if (yyvs)
            free(yyvs);
    yyss = yyssp = NULL;
    yyvs = yyvsp = NULL;
    yystacksize = 0;
    return (1);
yyaccept:
    if (yyss)
            free(yyss);
    if (yyvs)
            free(yyvs);
    yyss = yyssp = NULL;
    yyvs = yyvsp = NULL;
    yystacksize = 0;
    return (0);
}

Generated by: GCOVR (Version 3.3)