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rtems-libbsd/freebsd-userspace/lib/libipsec/policy_parse.c
Jennifer Averett 05519817fb Added files to get netshell to link when using ping.
2012-10-11 09:03:25 -05:00

967 lines
24 KiB
C
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#ifndef lint
static const char yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93";
#endif
#define YYBYACC 1
#define YYMAJOR 1
#define YYMINOR 9
#define YYPATCH 20101229
#define YYEMPTY (-1)
#define yyclearin (yychar = YYEMPTY)
#define yyerrok (yyerrflag = 0)
#define YYRECOVERING() (yyerrflag != 0)
#ifndef yyparse
#define yyparse __libipsecyyparse
#endif /* yyparse */
#ifndef yylex
#define yylex __libipsecyylex
#endif /* yylex */
#ifndef yyerror
#define yyerror __libipsecyyerror
#endif /* yyerror */
#ifndef yychar
#define yychar __libipsecyychar
#endif /* yychar */
#ifndef yyval
#define yyval __libipsecyyval
#endif /* yyval */
#ifndef yylval
#define yylval __libipsecyylval
#endif /* yylval */
#ifndef yydebug
#define yydebug __libipsecyydebug
#endif /* yydebug */
#ifndef yynerrs
#define yynerrs __libipsecyynerrs
#endif /* yynerrs */
#ifndef yyerrflag
#define yyerrflag __libipsecyyerrflag
#endif /* yyerrflag */
#ifndef yylhs
#define yylhs __libipsecyylhs
#endif /* yylhs */
#ifndef yylen
#define yylen __libipsecyylen
#endif /* yylen */
#ifndef yydefred
#define yydefred __libipsecyydefred
#endif /* yydefred */
#ifndef yydgoto
#define yydgoto __libipsecyydgoto
#endif /* yydgoto */
#ifndef yysindex
#define yysindex __libipsecyysindex
#endif /* yysindex */
#ifndef yyrindex
#define yyrindex __libipsecyyrindex
#endif /* yyrindex */
#ifndef yygindex
#define yygindex __libipsecyygindex
#endif /* yygindex */
#ifndef yytable
#define yytable __libipsecyytable
#endif /* yytable */
#ifndef yycheck
#define yycheck __libipsecyycheck
#endif /* yycheck */
#ifndef yyname
#define yyname __libipsecyyname
#endif /* yyname */
#ifndef yyrule
#define yyrule __libipsecyyrule
#endif /* yyrule */
#define YYPREFIX "__libipsecyy"
#define YYPURE 0
#line 52 "lib/libipsec/policy_parse.y"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#ifdef __rtems__
#include <freebsd/netipsec/ipsec.h>
#else
#include <netipsec/ipsec.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include "ipsec_strerror.h"
#define ATOX(c) \
(isdigit(c) ? (c - '0') : (isupper(c) ? (c - 'A' + 10) : (c - 'a' + 10) ))
static caddr_t pbuf = NULL; /* sadb_x_policy buffer */
static int tlen = 0; /* total length of pbuf */
static int offset = 0; /* offset of pbuf */
static int p_dir, p_type, p_protocol, p_mode, p_level, p_reqid;
static struct sockaddr *p_src = NULL;
static struct sockaddr *p_dst = NULL;
struct _val;
extern void yyerror(char *msg);
static struct sockaddr *parse_sockaddr(struct _val *buf);
static int rule_check(void);
static int init_x_policy(void);
static int set_x_request(struct sockaddr *src, struct sockaddr *dst);
static int set_sockaddr(struct sockaddr *addr);
static void policy_parse_request_init(void);
static caddr_t policy_parse(char *msg, int msglen);
extern void __policy__strbuffer__init__(char *msg);
extern void __policy__strbuffer__free__(void);
extern int yyparse(void);
extern int yylex(void);
extern char *__libipsecyytext; /*XXX*/
#line 102 "lib/libipsec/policy_parse.y"
#ifdef YYSTYPE
#undef YYSTYPE_IS_DECLARED
#define YYSTYPE_IS_DECLARED 1
#endif
#ifndef YYSTYPE_IS_DECLARED
#define YYSTYPE_IS_DECLARED 1
typedef union {
u_int num;
struct _val {
int len;
char *buf;
} val;
} YYSTYPE;
#endif /* !YYSTYPE_IS_DECLARED */
#line 163 "lib/libipsec/policy_parse.i"
/* compatibility with bison */
#ifdef YYPARSE_PARAM
/* compatibility with FreeBSD */
# ifdef YYPARSE_PARAM_TYPE
# define YYPARSE_DECL() yyparse(YYPARSE_PARAM_TYPE YYPARSE_PARAM)
# else
# define YYPARSE_DECL() yyparse(void *YYPARSE_PARAM)
# endif
#else
# define YYPARSE_DECL() yyparse(void)
#endif
/* Parameters sent to lex. */
#ifdef YYLEX_PARAM
# define YYLEX_DECL() yylex(void *YYLEX_PARAM)
# define YYLEX yylex(YYLEX_PARAM)
#else
# define YYLEX_DECL() yylex(void)
# define YYLEX yylex()
#endif
/* Parameters sent to yyerror. */
#define YYERROR_DECL() yyerror(const char *s)
#define YYERROR_CALL(msg) yyerror(msg)
extern int YYPARSE_DECL();
#define DIR 257
#define ACTION 258
#define PROTOCOL 259
#define MODE 260
#define LEVEL 261
#define LEVEL_SPECIFY 262
#define IPADDRESS 263
#define ME 264
#define ANY 265
#define SLASH 266
#define HYPHEN 267
#define YYERRCODE 256
static const short __libipsecyylhs[] = { -1,
2, 0, 0, 1, 1, 3, 3, 3, 3, 3,
3, 3, 3, 4, 5, 7, 7, 8, 6, 6,
6,
};
static const short __libipsecyylen[] = { 2,
0, 4, 1, 0, 2, 7, 6, 5, 4, 6,
3, 2, 1, 1, 1, 1, 1, 0, 4, 3,
3,
};
static const short __libipsecyydefred[] = { 0,
0, 0, 1, 4, 0, 14, 5, 0, 0, 15,
0, 0, 18, 0, 0, 0, 0, 0, 0, 0,
16, 17, 10, 0, 0, 20, 21, 6, 19,
};
static const short __libipsecyydgoto[] = { 2,
5, 4, 7, 8, 11, 17, 23, 18,
};
static const short __libipsecyysindex[] = { -257,
-245, 0, 0, 0, -244, 0, 0, -252, -243, 0,
-248, -256, 0, -251, -247, -250, -242, -246, -240, -241,
0, 0, 0, -250, -237, 0, 0, 0, 0,
};
static const short __libipsecyyrindex[] = { 0,
19, 0, 0, 0, 22, 0, 0, 1, 2, 0,
3, 4, 0, 0, 0, 0, 5, 0, 0, 0,
0, 0, 0, 6, 0, 0, 0, 0, 0,
};
static const short __libipsecyygindex[] = { 0,
0, 0, 0, 0, 0, 0, 7, 0,
};
#define YYTABLESIZE 265
static const short __libipsecyytable[] = { 1,
13, 12, 11, 9, 8, 7, 13, 14, 15, 16,
21, 22, 3, 9, 6, 19, 10, 12, 3, 20,
25, 2, 27, 24, 26, 29, 0, 0, 0, 0,
28, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 13,
12, 11, 9, 8, 7,
};
static const short __libipsecyycheck[] = { 257,
0, 0, 0, 0, 0, 0, 263, 264, 265, 266,
261, 262, 258, 266, 259, 267, 260, 266, 0, 267,
267, 0, 264, 266, 265, 263, -1, -1, -1, -1,
24, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, 259,
259, 259, 259, 259, 259,
};
#define YYFINAL 2
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 267
#if YYDEBUG
static const char *yyname[] = {
"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"DIR","ACTION","PROTOCOL","MODE",
"LEVEL","LEVEL_SPECIFY","IPADDRESS","ME","ANY","SLASH","HYPHEN",
};
static const char *yyrule[] = {
"$accept : policy_spec",
"$$1 :",
"policy_spec : DIR ACTION $$1 rules",
"policy_spec : DIR",
"rules :",
"rules : rules rule",
"rule : protocol SLASH mode SLASH addresses SLASH level",
"rule : protocol SLASH mode SLASH addresses SLASH",
"rule : protocol SLASH mode SLASH addresses",
"rule : protocol SLASH mode SLASH",
"rule : protocol SLASH mode SLASH SLASH level",
"rule : protocol SLASH mode",
"rule : protocol SLASH",
"rule : protocol",
"protocol : PROTOCOL",
"mode : MODE",
"level : LEVEL",
"level : LEVEL_SPECIFY",
"$$2 :",
"addresses : IPADDRESS $$2 HYPHEN IPADDRESS",
"addresses : ME HYPHEN ANY",
"addresses : ANY HYPHEN ME",
};
#endif
/* define the initial stack-sizes */
#ifdef YYSTACKSIZE
#undef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 500
#define YYMAXDEPTH 500
#endif
#endif
#define YYINITSTACKSIZE 500
int yydebug;
int yynerrs;
typedef struct {
unsigned stacksize;
short *s_base;
short *s_mark;
short *s_last;
YYSTYPE *l_base;
YYSTYPE *l_mark;
} YYSTACKDATA;
int yyerrflag;
int yychar;
YYSTYPE yyval;
YYSTYPE yylval;
/* variables for the parser stack */
static YYSTACKDATA yystack;
#line 217 "lib/libipsec/policy_parse.y"
void
yyerror(msg)
char *msg;
{
fprintf(stderr, "libipsec: %s while parsing \"%s\"\n",
msg, __libipsecyytext);
return;
}
static struct sockaddr *
parse_sockaddr(buf)
struct _val *buf;
{
struct addrinfo hints, *res;
char *serv = NULL;
int error;
struct sockaddr *newaddr = NULL;
memset(&hints, 0, sizeof(hints));
hints.ai_family = PF_UNSPEC;
hints.ai_flags = AI_NUMERICHOST;
error = getaddrinfo(buf->buf, serv, &hints, &res);
if (error != 0) {
yyerror("invalid IP address");
__ipsec_set_strerror(gai_strerror(error));
return NULL;
}
if (res->ai_addr == NULL) {
yyerror("invalid IP address");
__ipsec_set_strerror(gai_strerror(error));
return NULL;
}
newaddr = malloc(res->ai_addr->sa_len);
if (newaddr == NULL) {
__ipsec_errcode = EIPSEC_NO_BUFS;
freeaddrinfo(res);
return NULL;
}
memcpy(newaddr, res->ai_addr, res->ai_addr->sa_len);
freeaddrinfo(res);
__ipsec_errcode = EIPSEC_NO_ERROR;
return newaddr;
}
static int
rule_check()
{
if (p_type == IPSEC_POLICY_IPSEC) {
if (p_protocol == IPPROTO_IP) {
__ipsec_errcode = EIPSEC_NO_PROTO;
return -1;
}
if (p_mode != IPSEC_MODE_TRANSPORT
&& p_mode != IPSEC_MODE_TUNNEL) {
__ipsec_errcode = EIPSEC_INVAL_MODE;
return -1;
}
if (p_src == NULL && p_dst == NULL) {
if (p_mode != IPSEC_MODE_TRANSPORT) {
__ipsec_errcode = EIPSEC_INVAL_ADDRESS;
return -1;
}
}
else if (p_src->sa_family != p_dst->sa_family) {
__ipsec_errcode = EIPSEC_FAMILY_MISMATCH;
return -1;
}
}
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
static int
init_x_policy()
{
struct sadb_x_policy *p;
tlen = sizeof(struct sadb_x_policy);
pbuf = malloc(tlen);
if (pbuf == NULL) {
__ipsec_errcode = EIPSEC_NO_BUFS;
return -1;
}
memset(pbuf, 0, tlen);
p = (struct sadb_x_policy *)pbuf;
p->sadb_x_policy_len = 0; /* must update later */
p->sadb_x_policy_exttype = SADB_X_EXT_POLICY;
p->sadb_x_policy_type = p_type;
p->sadb_x_policy_dir = p_dir;
p->sadb_x_policy_id = 0;
offset = tlen;
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
static int
set_x_request(src, dst)
struct sockaddr *src, *dst;
{
struct sadb_x_ipsecrequest *p;
int reqlen;
reqlen = sizeof(*p)
+ (src ? src->sa_len : 0)
+ (dst ? dst->sa_len : 0);
tlen += reqlen; /* increment to total length */
pbuf = realloc(pbuf, tlen);
if (pbuf == NULL) {
__ipsec_errcode = EIPSEC_NO_BUFS;
return -1;
}
p = (struct sadb_x_ipsecrequest *)&pbuf[offset];
p->sadb_x_ipsecrequest_len = reqlen;
p->sadb_x_ipsecrequest_proto = p_protocol;
p->sadb_x_ipsecrequest_mode = p_mode;
p->sadb_x_ipsecrequest_level = p_level;
p->sadb_x_ipsecrequest_reqid = p_reqid;
offset += sizeof(*p);
if (set_sockaddr(src) || set_sockaddr(dst))
return -1;
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
static int
set_sockaddr(addr)
struct sockaddr *addr;
{
if (addr == NULL) {
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
/* tlen has already incremented */
memcpy(&pbuf[offset], addr, addr->sa_len);
offset += addr->sa_len;
__ipsec_errcode = EIPSEC_NO_ERROR;
return 0;
}
static void
policy_parse_request_init()
{
p_protocol = IPPROTO_IP;
p_mode = IPSEC_MODE_ANY;
p_level = IPSEC_LEVEL_DEFAULT;
p_reqid = 0;
if (p_src != NULL) {
free(p_src);
p_src = NULL;
}
if (p_dst != NULL) {
free(p_dst);
p_dst = NULL;
}
return;
}
static caddr_t
policy_parse(msg, msglen)
char *msg;
int msglen;
{
int error;
pbuf = NULL;
tlen = 0;
/* initialize */
p_dir = IPSEC_DIR_INVALID;
p_type = IPSEC_POLICY_DISCARD;
policy_parse_request_init();
__policy__strbuffer__init__(msg);
error = yyparse(); /* it must be set errcode. */
__policy__strbuffer__free__();
if (error) {
if (pbuf != NULL)
free(pbuf);
return NULL;
}
/* update total length */
((struct sadb_x_policy *)pbuf)->sadb_x_policy_len = PFKEY_UNIT64(tlen);
__ipsec_errcode = EIPSEC_NO_ERROR;
return pbuf;
}
caddr_t
ipsec_set_policy(msg, msglen)
char *msg;
int msglen;
{
caddr_t policy;
policy = policy_parse(msg, msglen);
if (policy == NULL) {
if (__ipsec_errcode == EIPSEC_NO_ERROR)
__ipsec_errcode = EIPSEC_INVAL_ARGUMENT;
return NULL;
}
__ipsec_errcode = EIPSEC_NO_ERROR;
return policy;
}
#line 597 "lib/libipsec/policy_parse.i"
#if YYDEBUG
#include <stdio.h> /* needed for printf */
#endif
#include <stdlib.h> /* needed for malloc, etc */
#include <string.h> /* needed for memset */
/* allocate initial stack or double stack size, up to YYMAXDEPTH */
static int yygrowstack(YYSTACKDATA *data)
{
int i;
unsigned newsize;
short *newss;
YYSTYPE *newvs;
if ((newsize = data->stacksize) == 0)
newsize = YYINITSTACKSIZE;
else if (newsize >= YYMAXDEPTH)
return -1;
else if ((newsize *= 2) > YYMAXDEPTH)
newsize = YYMAXDEPTH;
i = data->s_mark - data->s_base;
newss = (short *)realloc(data->s_base, newsize * sizeof(*newss));
if (newss == 0)
return -1;
data->s_base = newss;
data->s_mark = newss + i;
newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));
if (newvs == 0)
return -1;
data->l_base = newvs;
data->l_mark = newvs + i;
data->stacksize = newsize;
data->s_last = data->s_base + newsize - 1;
return 0;
}
#if YYPURE || defined(YY_NO_LEAKS)
static void yyfreestack(YYSTACKDATA *data)
{
free(data->s_base);
free(data->l_base);
memset(data, 0, sizeof(*data));
}
#else
#define yyfreestack(data) /* nothing */
#endif
#define YYABORT goto yyabort
#define YYREJECT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
YYPARSE_DECL()
{
int yym, yyn, yystate;
#if YYDEBUG
const char *yys;
if ((yys = getenv("YYDEBUG")) != 0)
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')
yydebug = yyn - '0';
}
#endif
yynerrs = 0;
yyerrflag = 0;
yychar = YYEMPTY;
yystate = 0;
#if YYPURE
memset(&yystack, 0, sizeof(yystack));
#endif
if (yystack.s_base == NULL && yygrowstack(&yystack)) goto yyoverflow;
yystack.s_mark = yystack.s_base;
yystack.l_mark = yystack.l_base;
yystate = 0;
*yystack.s_mark = 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 (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack))
{
goto yyoverflow;
}
yystate = yytable[yyn];
*++yystack.s_mark = yytable[yyn];
*++yystack.l_mark = yylval;
yychar = YYEMPTY;
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;
yyerror("syntax error");
goto yyerrlab;
yyerrlab:
++yynerrs;
yyinrecovery:
if (yyerrflag < 3)
{
yyerrflag = 3;
for (;;)
{
if ((yyn = yysindex[*yystack.s_mark]) && (yyn += YYERRCODE) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, error recovery shifting\
to state %d\n", YYPREFIX, *yystack.s_mark, yytable[yyn]);
#endif
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack))
{
goto yyoverflow;
}
yystate = yytable[yyn];
*++yystack.s_mark = yytable[yyn];
*++yystack.l_mark = yylval;
goto yyloop;
}
else
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: error recovery discarding state %d\n",
YYPREFIX, *yystack.s_mark);
#endif
if (yystack.s_mark <= yystack.s_base) goto yyabort;
--yystack.s_mark;
--yystack.l_mark;
}
}
}
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 = YYEMPTY;
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 = yystack.l_mark[1-yym];
else
memset(&yyval, 0, sizeof yyval);
switch (yyn)
{
case 1:
#line 120 "lib/libipsec/policy_parse.y"
{
p_dir = yystack.l_mark[-1].num;
p_type = yystack.l_mark[0].num;
if (init_x_policy())
return -1;
}
break;
case 3:
#line 129 "lib/libipsec/policy_parse.y"
{
p_dir = yystack.l_mark[0].num;
p_type = 0; /* ignored it by kernel */
if (init_x_policy())
return -1;
}
break;
case 5:
#line 140 "lib/libipsec/policy_parse.y"
{
if (rule_check() < 0)
return -1;
if (set_x_request(p_src, p_dst) < 0)
return -1;
policy_parse_request_init();
}
break;
case 12:
#line 158 "lib/libipsec/policy_parse.y"
{
__ipsec_errcode = EIPSEC_FEW_ARGUMENTS;
return -1;
}
break;
case 13:
#line 162 "lib/libipsec/policy_parse.y"
{
__ipsec_errcode = EIPSEC_FEW_ARGUMENTS;
return -1;
}
break;
case 14:
#line 169 "lib/libipsec/policy_parse.y"
{ p_protocol = yystack.l_mark[0].num; }
break;
case 15:
#line 173 "lib/libipsec/policy_parse.y"
{ p_mode = yystack.l_mark[0].num; }
break;
case 16:
#line 177 "lib/libipsec/policy_parse.y"
{
p_level = yystack.l_mark[0].num;
p_reqid = 0;
}
break;
case 17:
#line 181 "lib/libipsec/policy_parse.y"
{
p_level = IPSEC_LEVEL_UNIQUE;
p_reqid = atol(yystack.l_mark[0].val.buf); /* atol() is good. */
}
break;
case 18:
#line 188 "lib/libipsec/policy_parse.y"
{
p_src = parse_sockaddr(&yystack.l_mark[0].val);
if (p_src == NULL)
return -1;
}
break;
case 19:
#line 194 "lib/libipsec/policy_parse.y"
{
p_dst = parse_sockaddr(&yystack.l_mark[0].val);
if (p_dst == NULL)
return -1;
}
break;
case 20:
#line 199 "lib/libipsec/policy_parse.y"
{
if (p_dir != IPSEC_DIR_OUTBOUND) {
__ipsec_errcode = EIPSEC_INVAL_DIR;
return -1;
}
}
break;
case 21:
#line 205 "lib/libipsec/policy_parse.y"
{
if (p_dir != IPSEC_DIR_INBOUND) {
__ipsec_errcode = EIPSEC_INVAL_DIR;
return -1;
}
}
break;
#line 905 "lib/libipsec/policy_parse.i"
}
yystack.s_mark -= yym;
yystate = *yystack.s_mark;
yystack.l_mark -= 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;
*++yystack.s_mark = YYFINAL;
*++yystack.l_mark = 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, *yystack.s_mark, yystate);
#endif
if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack))
{
goto yyoverflow;
}
*++yystack.s_mark = (short) yystate;
*++yystack.l_mark = yyval;
goto yyloop;
yyoverflow:
yyerror("yacc stack overflow");
yyabort:
yyfreestack(&yystack);
return (1);
yyaccept:
yyfreestack(&yystack);
return (0);
}
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