1375 lines
28 KiB
Plaintext
1375 lines
28 KiB
Plaintext
/* $KAME: cfparse.y,v 1.112 2002/02/21 14:47:38 sakane Exp $ */
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%{
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet6/ipsec.h>
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#include <netkey/key_var.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <netdb.h>
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#if !defined(HAVE_GETADDRINFO) || !defined(HAVE_GETNAMEINFO)
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#include "addrinfo.h"
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#endif
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#include "var.h"
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#include "misc.h"
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#include "vmbuf.h"
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#include "plog.h"
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#include "sockmisc.h"
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#include "str2val.h"
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#include "debug.h"
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#include "cfparse.h"
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#include "cftoken.h"
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#include "algorithm.h"
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#include "localconf.h"
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#include "policy.h"
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#include "sainfo.h"
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#include "oakley.h"
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#include "pfkey.h"
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#include "remoteconf.h"
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#include "grabmyaddr.h"
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#include "isakmp_var.h"
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#include "handler.h"
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#include "isakmp.h"
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#include "ipsec_doi.h"
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#include "strnames.h"
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#include "gcmalloc.h"
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#ifdef HAVE_GSSAPI
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#include "gssapi.h"
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#endif
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#include "vendorid.h"
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struct proposalspec {
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time_t lifetime; /* for isakmp/ipsec */
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int lifebyte; /* for isakmp/ipsec */
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struct secprotospec *spspec; /* the head is always current spec. */
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struct proposalspec *next; /* the tail is the most prefered. */
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struct proposalspec *prev;
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};
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struct secprotospec {
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int prop_no;
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int trns_no;
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int strength; /* for isakmp/ipsec */
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int encklen; /* for isakmp/ipsec */
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time_t lifetime; /* for isakmp */
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int lifebyte; /* for isakmp */
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int proto_id; /* for ipsec (isakmp?) */
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int ipsec_level; /* for ipsec */
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int encmode; /* for ipsec */
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int vendorid; /* for isakmp */
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char *gssid;
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struct sockaddr *remote;
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int algclass[MAXALGCLASS];
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struct secprotospec *next; /* the tail is the most prefiered. */
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struct secprotospec *prev;
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struct proposalspec *back;
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};
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static int num2dhgroup[] = {
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0,
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OAKLEY_ATTR_GRP_DESC_MODP768,
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OAKLEY_ATTR_GRP_DESC_MODP1024,
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OAKLEY_ATTR_GRP_DESC_EC2N155,
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OAKLEY_ATTR_GRP_DESC_EC2N185,
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OAKLEY_ATTR_GRP_DESC_MODP1536,
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};
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static struct remoteconf *cur_rmconf;
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static int tmpalgtype[MAXALGCLASS];
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static struct sainfo *cur_sainfo;
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static int cur_algclass;
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static struct proposalspec *prhead; /* the head is always current. */
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static struct proposalspec *newprspec __P((void));
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static void cleanprhead __P((void));
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static void insprspec __P((struct proposalspec *, struct proposalspec **));
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static struct secprotospec *newspspec __P((void));
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static void insspspec __P((struct secprotospec *, struct proposalspec **));
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static int set_isakmp_proposal
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__P((struct remoteconf *, struct proposalspec *));
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static void clean_tmpalgtype __P((void));
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static int expand_isakmpspec __P((int, int, int *,
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int, int, time_t, int, int, int, char *, struct remoteconf *));
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#if 0
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static int fix_lifebyte __P((u_long));
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#endif
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%}
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%union {
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unsigned long num;
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vchar_t *val;
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struct remoteconf *rmconf;
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struct sockaddr *saddr;
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struct sainfoalg *alg;
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}
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/* path */
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%token PATH PATHTYPE
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/* include */
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%token INCLUDE
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/* self information */
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%token IDENTIFIER VENDORID
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/* logging */
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%token LOGGING LOGLEV
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/* padding */
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%token PADDING PAD_RANDOMIZE PAD_RANDOMIZELEN PAD_MAXLEN PAD_STRICT PAD_EXCLTAIL
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/* listen */
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%token LISTEN X_ISAKMP X_ADMIN STRICT_ADDRESS
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/* timer */
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%token RETRY RETRY_COUNTER RETRY_INTERVAL RETRY_PERSEND
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%token RETRY_PHASE1 RETRY_PHASE2
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/* algorithm */
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%token ALGORITHM_CLASS ALGORITHMTYPE STRENGTHTYPE
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/* sainfo */
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%token SAINFO
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/* remote */
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%token REMOTE ANONYMOUS
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%token EXCHANGE_MODE EXCHANGETYPE DOI DOITYPE SITUATION SITUATIONTYPE
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%token CERTIFICATE_TYPE CERTTYPE PEERS_CERTFILE VERIFY_CERT SEND_CERT SEND_CR
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%token IDENTIFIERTYPE MY_IDENTIFIER PEERS_IDENTIFIER VERIFY_IDENTIFIER
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%token DNSSEC CERT_X509
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%token NONCE_SIZE DH_GROUP KEEPALIVE PASSIVE INITIAL_CONTACT
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%token PROPOSAL_CHECK PROPOSAL_CHECK_LEVEL
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%token GENERATE_POLICY SUPPORT_MIP6
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%token PROPOSAL
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%token EXEC_PATH EXEC_COMMAND EXEC_SUCCESS EXEC_FAILURE
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%token GSSAPI_ID
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%token COMPLEX_BUNDLE
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%token PREFIX PORT PORTANY UL_PROTO ANY
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%token PFS_GROUP LIFETIME LIFETYPE_TIME LIFETYPE_BYTE STRENGTH
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%token NUMBER SWITCH BOOLEAN
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%token HEXSTRING QUOTEDSTRING ADDRSTRING
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%token UNITTYPE_BYTE UNITTYPE_KBYTES UNITTYPE_MBYTES UNITTYPE_TBYTES
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%token UNITTYPE_SEC UNITTYPE_MIN UNITTYPE_HOUR
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%token EOS BOC EOC COMMA
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%type <num> NUMBER BOOLEAN SWITCH keylength
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%type <num> PATHTYPE IDENTIFIERTYPE LOGLEV
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%type <num> ALGORITHM_CLASS dh_group_num
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%type <num> ALGORITHMTYPE STRENGTHTYPE
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%type <num> PREFIX prefix PORT port ike_port
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%type <num> ul_proto UL_PROTO
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%type <num> EXCHANGETYPE DOITYPE SITUATIONTYPE
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%type <num> CERTTYPE CERT_X509 PROPOSAL_CHECK_LEVEL
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%type <num> unittype_time unittype_byte
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%type <val> QUOTEDSTRING HEXSTRING ADDRSTRING sainfo_id
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%type <val> identifierstring
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%type <saddr> remote_index ike_addrinfo_port
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%type <alg> algorithm
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%%
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statements
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: /* nothing */
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| statements statement
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;
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statement
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: path_statement
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| include_statement
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| identifier_statement
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| logging_statement
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| padding_statement
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| listen_statement
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| timer_statement
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| sainfo_statement
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| remote_statement
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| special_statement
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;
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/* path */
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path_statement
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: PATH PATHTYPE QUOTEDSTRING
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{
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if ($2 > LC_PATHTYPE_MAX) {
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yyerror("invalid path type %d", $2);
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return -1;
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}
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/* free old pathinfo */
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if (lcconf->pathinfo[$2])
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racoon_free(lcconf->pathinfo[$2]);
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/* set new pathinfo */
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lcconf->pathinfo[$2] = strdup($3->v);
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vfree($3);
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}
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EOS
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;
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/* special */
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special_statement
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: COMPLEX_BUNDLE SWITCH { lcconf->complex_bundle = $2; } EOS
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;
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/* include */
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include_statement
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: INCLUDE QUOTEDSTRING
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{
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char path[MAXPATHLEN];
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getpathname(path, sizeof(path),
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LC_PATHTYPE_INCLUDE, $2->v);
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vfree($2);
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if (yycf_switch_buffer(path) != 0)
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return -1;
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}
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EOS
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;
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/* self infomation */
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identifier_statement
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: IDENTIFIER identifier_stmt
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;
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identifier_stmt
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: VENDORID
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{
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/*XXX to be deleted */
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}
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QUOTEDSTRING EOS
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| IDENTIFIERTYPE QUOTEDSTRING
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{
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/*XXX to be deleted */
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$2->l--; /* nuke '\0' */
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lcconf->ident[$1] = $2;
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if (lcconf->ident[$1] == NULL) {
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yyerror("failed to set my ident: %s",
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strerror(errno));
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return -1;
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}
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}
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EOS
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;
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/* logging */
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logging_statement
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: LOGGING log_level EOS
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;
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log_level
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: HEXSTRING
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{
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/*
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* XXX ignore it because this specification
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* will be obsoleted.
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*/
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yywarn("see racoon.conf(5), such a log specification will be obsoleted.");
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vfree($1);
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}
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| LOGLEV
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{
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/*
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* set the loglevel by configuration file only when
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* the command line did not specify any loglevel.
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*/
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if (loglevel <= LLV_BASE)
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loglevel += $1;
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}
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;
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/* padding */
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padding_statement
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: PADDING BOC padding_stmts EOC
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;
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padding_stmts
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: /* nothing */
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| padding_stmts padding_stmt
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;
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padding_stmt
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: PAD_RANDOMIZE SWITCH { lcconf->pad_random = $2; } EOS
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| PAD_RANDOMIZELEN SWITCH { lcconf->pad_randomlen = $2; } EOS
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| PAD_MAXLEN NUMBER { lcconf->pad_maxsize = $2; } EOS
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| PAD_STRICT SWITCH { lcconf->pad_strict = $2; } EOS
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| PAD_EXCLTAIL SWITCH { lcconf->pad_excltail = $2; } EOS
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;
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/* listen */
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listen_statement
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: LISTEN BOC listen_stmts EOC
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;
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listen_stmts
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: /* nothing */
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| listen_stmts listen_stmt
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;
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listen_stmt
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: X_ISAKMP ike_addrinfo_port
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{
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struct myaddrs *p;
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p = newmyaddr();
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if (p == NULL) {
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yyerror("failed to allocate myaddrs");
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return -1;
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}
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p->addr = $2;
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if (p->addr == NULL) {
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yyerror("failed to copy sockaddr ");
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delmyaddr(p);
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return -1;
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}
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insmyaddr(p, &lcconf->myaddrs);
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lcconf->autograbaddr = 0;
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}
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EOS
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| X_ADMIN
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{
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yyerror("admin directive is obsoleted.");
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}
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PORT EOS
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| STRICT_ADDRESS { lcconf->strict_address = TRUE; } EOS
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;
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ike_addrinfo_port
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: ADDRSTRING ike_port
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{
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char portbuf[10];
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snprintf(portbuf, sizeof(portbuf), "%ld", $2);
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$$ = str2saddr($1->v, portbuf);
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vfree($1);
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if (!$$)
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return -1;
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}
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;
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ike_port
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: /* nothing */ { $$ = PORT_ISAKMP; }
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| PORT { $$ = $1; }
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;
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/* timer */
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timer_statement
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: RETRY BOC timer_stmts EOC
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;
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timer_stmts
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: /* nothing */
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| timer_stmts timer_stmt
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;
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timer_stmt
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: RETRY_COUNTER NUMBER
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{
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lcconf->retry_counter = $2;
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}
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EOS
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| RETRY_INTERVAL NUMBER unittype_time
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{
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lcconf->retry_interval = $2 * $3;
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}
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EOS
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| RETRY_PERSEND NUMBER
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{
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lcconf->count_persend = $2;
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}
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EOS
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| RETRY_PHASE1 NUMBER unittype_time
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{
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lcconf->retry_checkph1 = $2 * $3;
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}
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EOS
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| RETRY_PHASE2 NUMBER unittype_time
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{
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lcconf->wait_ph2complete = $2 * $3;
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}
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EOS
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;
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/* sainfo */
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sainfo_statement
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: SAINFO
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{
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cur_sainfo = newsainfo();
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if (cur_sainfo == NULL) {
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yyerror("failed to allocate sainfo");
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return -1;
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}
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}
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sainfo_name BOC sainfo_specs
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{
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struct sainfo *check;
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/* default */
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if (cur_sainfo->algs[algclass_ipsec_enc] == 0) {
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yyerror("no encryption algorithm at %s",
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sainfo2str(cur_sainfo));
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return -1;
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}
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if (cur_sainfo->algs[algclass_ipsec_auth] == 0) {
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yyerror("no authentication algorithm at %s",
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sainfo2str(cur_sainfo));
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return -1;
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}
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if (cur_sainfo->algs[algclass_ipsec_comp] == 0) {
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yyerror("no compression algorithm at %s",
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sainfo2str(cur_sainfo));
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return -1;
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}
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/* duplicate check */
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check = getsainfo(cur_sainfo->idsrc, cur_sainfo->iddst);
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if (check && (!check->idsrc && !cur_sainfo->idsrc)) {
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yyerror("duplicated sainfo: %s",
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sainfo2str(cur_sainfo));
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return -1;
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}
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inssainfo(cur_sainfo);
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}
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EOC
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;
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sainfo_name
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: ANONYMOUS
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{
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cur_sainfo->idsrc = NULL;
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cur_sainfo->iddst = NULL;
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}
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| sainfo_id sainfo_id
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{
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cur_sainfo->idsrc = $1;
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cur_sainfo->iddst = $2;
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}
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;
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sainfo_id
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: IDENTIFIERTYPE ADDRSTRING prefix port ul_proto
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{
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char portbuf[10];
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struct sockaddr *saddr;
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if (($5 == IPPROTO_ICMP || $5 == IPPROTO_ICMPV6)
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&& ($4 != IPSEC_PORT_ANY || $4 != IPSEC_PORT_ANY)) {
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yyerror("port number must be \"any\".");
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return -1;
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}
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snprintf(portbuf, sizeof(portbuf), "%lu", $4);
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saddr = str2saddr($2->v, portbuf);
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vfree($2);
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if (saddr == NULL)
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return -1;
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switch (saddr->sa_family) {
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case AF_INET:
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if ($5 == IPPROTO_ICMPV6) {
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yyerror("upper layer protocol mismatched.\n");
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racoon_free(saddr);
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return -1;
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}
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$$ = ipsecdoi_sockaddr2id(saddr,
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$3 == ~0 ? (sizeof(struct in_addr) << 3): $3,
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$5);
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break;
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#ifdef INET6
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case AF_INET6:
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if ($5 == IPPROTO_ICMP) {
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yyerror("upper layer protocol mismatched.\n");
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racoon_free(saddr);
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return -1;
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}
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$$ = ipsecdoi_sockaddr2id(saddr,
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$3 == ~0 ? (sizeof(struct in6_addr) << 3) : $3,
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$5);
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break;
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#endif
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default:
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yyerror("invalid family: %d", saddr->sa_family);
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break;
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}
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racoon_free(saddr);
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if ($$ == NULL)
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return -1;
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}
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| IDENTIFIERTYPE QUOTEDSTRING
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{
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struct ipsecdoi_id_b *id_b;
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if ($1 == IDTYPE_ASN1DN) {
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yyerror("id type forbidden: %d", $1);
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return -1;
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}
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$2->l--;
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$$ = vmalloc(sizeof(*id_b) + $2->l);
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if ($$ == NULL) {
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yyerror("failed to allocate identifier");
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return -1;
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}
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id_b = (struct ipsecdoi_id_b *)$$->v;
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id_b->type = idtype2doi($1);
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id_b->proto_id = 0;
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id_b->port = 0;
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memcpy($$->v + sizeof(*id_b), $2->v, $2->l);
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}
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;
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sainfo_specs
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: /* nothing */
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| sainfo_specs sainfo_spec
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;
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sainfo_spec
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: PFS_GROUP dh_group_num
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{
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cur_sainfo->pfs_group = $2;
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}
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EOS
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| LIFETIME LIFETYPE_TIME NUMBER unittype_time
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{
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cur_sainfo->lifetime = $3 * $4;
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}
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EOS
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| LIFETIME LIFETYPE_BYTE NUMBER unittype_byte
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{
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#if 1
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yyerror("byte lifetime support is deprecated");
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return -1;
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#else
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cur_sainfo->lifebyte = fix_lifebyte($3 * $4);
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if (cur_sainfo->lifebyte == 0)
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return -1;
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#endif
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}
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EOS
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|
| ALGORITHM_CLASS {
|
|
cur_algclass = $1;
|
|
}
|
|
algorithms EOS
|
|
| IDENTIFIER IDENTIFIERTYPE
|
|
{
|
|
yyerror("it's deprecated to specify a identifier in phase 2");
|
|
}
|
|
EOS
|
|
| MY_IDENTIFIER IDENTIFIERTYPE QUOTEDSTRING
|
|
{
|
|
yyerror("it's deprecated to specify a identifier in phase 2");
|
|
}
|
|
EOS
|
|
;
|
|
|
|
algorithms
|
|
: algorithm
|
|
{
|
|
inssainfoalg(&cur_sainfo->algs[cur_algclass], $1);
|
|
}
|
|
| algorithm
|
|
{
|
|
inssainfoalg(&cur_sainfo->algs[cur_algclass], $1);
|
|
}
|
|
COMMA algorithms
|
|
;
|
|
algorithm
|
|
: ALGORITHMTYPE keylength
|
|
{
|
|
int defklen;
|
|
|
|
$$ = newsainfoalg();
|
|
if ($$ == NULL) {
|
|
yyerror("failed to get algorithm alocation");
|
|
return -1;
|
|
}
|
|
|
|
$$->alg = algtype2doi(cur_algclass, $1);
|
|
if ($$->alg == -1) {
|
|
yyerror("algorithm mismatched");
|
|
racoon_free($$);
|
|
return -1;
|
|
}
|
|
|
|
defklen = default_keylen(cur_algclass, $1);
|
|
if (defklen == 0) {
|
|
if ($2) {
|
|
yyerror("keylen not allowed");
|
|
racoon_free($$);
|
|
return -1;
|
|
}
|
|
} else {
|
|
if ($2 && check_keylen(cur_algclass, $1, $2) < 0) {
|
|
yyerror("invalid keylen %d", $2);
|
|
racoon_free($$);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if ($2)
|
|
$$->encklen = $2;
|
|
else
|
|
$$->encklen = defklen;
|
|
|
|
/* check if it's supported algorithm by kernel */
|
|
if (!(cur_algclass == algclass_ipsec_auth && $1 == algtype_non_auth)
|
|
&& pk_checkalg(cur_algclass, $1, $$->encklen)) {
|
|
int a = algclass2doi(cur_algclass);
|
|
int b = algtype2doi(cur_algclass, $1);
|
|
if (a == IPSECDOI_ATTR_AUTH)
|
|
a = IPSECDOI_PROTO_IPSEC_AH;
|
|
yyerror("algorithm %s not supported",
|
|
s_ipsecdoi_trns(a, b));
|
|
racoon_free($$);
|
|
return -1;
|
|
}
|
|
}
|
|
;
|
|
prefix
|
|
: /* nothing */ { $$ = ~0; }
|
|
| PREFIX { $$ = $1; }
|
|
;
|
|
port
|
|
: /* nothing */ { $$ = IPSEC_PORT_ANY; }
|
|
| PORT { $$ = $1; }
|
|
| PORTANY { $$ = IPSEC_PORT_ANY; }
|
|
;
|
|
ul_proto
|
|
: NUMBER { $$ = $1; }
|
|
| UL_PROTO { $$ = $1; }
|
|
| ANY { $$ = IPSEC_ULPROTO_ANY; }
|
|
;
|
|
keylength
|
|
: /* nothing */ { $$ = 0; }
|
|
| NUMBER { $$ = $1; }
|
|
;
|
|
|
|
/* remote */
|
|
remote_statement
|
|
: REMOTE remote_index
|
|
{
|
|
struct remoteconf *new;
|
|
struct proposalspec *prspec;
|
|
|
|
new = newrmconf();
|
|
if (new == NULL) {
|
|
yyerror("failed to get new remoteconf.");
|
|
return -1;
|
|
}
|
|
|
|
new->remote = $2;
|
|
cur_rmconf = new;
|
|
|
|
prspec = newprspec();
|
|
if (prspec == NULL)
|
|
return -1;
|
|
prspec->lifetime = oakley_get_defaultlifetime();
|
|
insprspec(prspec, &prhead);
|
|
}
|
|
BOC remote_specs
|
|
{
|
|
/* check a exchange mode */
|
|
if (cur_rmconf->etypes == NULL) {
|
|
yyerror("no exchange mode specified.\n");
|
|
return -1;
|
|
}
|
|
|
|
if (cur_rmconf->idvtype == IDTYPE_ASN1DN
|
|
&& cur_rmconf->mycertfile == NULL) {
|
|
yyerror("id type mismatched due to "
|
|
"no CERT defined.\n");
|
|
return -1;
|
|
}
|
|
|
|
if (set_isakmp_proposal(cur_rmconf, prhead) != 0)
|
|
return -1;
|
|
|
|
/* DH group settting if aggressive mode is there. */
|
|
if (check_etypeok(cur_rmconf, ISAKMP_ETYPE_AGG) != NULL) {
|
|
struct isakmpsa *p;
|
|
int b = 0;
|
|
|
|
/* DH group */
|
|
for (p = cur_rmconf->proposal; p; p = p->next) {
|
|
if (b == 0 || (b && b == p->dh_group)) {
|
|
b = p->dh_group;
|
|
continue;
|
|
}
|
|
yyerror("DH group must be equal "
|
|
"to each proposals's "
|
|
"when aggressive mode is "
|
|
"used.\n");
|
|
return -1;
|
|
}
|
|
cur_rmconf->dh_group = b;
|
|
|
|
if (cur_rmconf->dh_group == 0) {
|
|
yyerror("DH group must be required.\n");
|
|
return -1;
|
|
}
|
|
|
|
/* DH group settting if PFS is required. */
|
|
if (oakley_setdhgroup(cur_rmconf->dh_group,
|
|
&cur_rmconf->dhgrp) < 0) {
|
|
yyerror("failed to set DH value.\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
insrmconf(cur_rmconf);
|
|
|
|
cleanprhead();
|
|
}
|
|
EOC
|
|
;
|
|
remote_index
|
|
: ANONYMOUS ike_port
|
|
{
|
|
$$ = newsaddr(sizeof(struct sockaddr *));
|
|
$$->sa_family = AF_UNSPEC;
|
|
((struct sockaddr_in *)$$)->sin_port = htons($2);
|
|
}
|
|
| ike_addrinfo_port
|
|
{
|
|
$$ = $1;
|
|
if ($$ == NULL) {
|
|
yyerror("failed to allocate sockaddr");
|
|
return -1;
|
|
}
|
|
}
|
|
;
|
|
remote_specs
|
|
: /* nothing */
|
|
| remote_specs remote_spec
|
|
;
|
|
remote_spec
|
|
: EXCHANGE_MODE exchange_types EOS
|
|
| DOI DOITYPE { cur_rmconf->doitype = $2; } EOS
|
|
| SITUATION SITUATIONTYPE { cur_rmconf->sittype = $2; } EOS
|
|
| CERTIFICATE_TYPE cert_spec
|
|
| PEERS_CERTFILE QUOTEDSTRING
|
|
{
|
|
#ifdef HAVE_SIGNING_C
|
|
cur_rmconf->getcert_method = ISAKMP_GETCERT_LOCALFILE;
|
|
cur_rmconf->peerscertfile = strdup($2->v);
|
|
vfree($2);
|
|
#else
|
|
yyerror("directive not supported");
|
|
return -1;
|
|
#endif
|
|
}
|
|
EOS
|
|
| PEERS_CERTFILE DNSSEC
|
|
{
|
|
#ifdef HAVE_SIGNING_C
|
|
cur_rmconf->getcert_method = ISAKMP_GETCERT_DNS;
|
|
cur_rmconf->peerscertfile = NULL;
|
|
#else
|
|
yyerror("directive not supported");
|
|
return -1;
|
|
#endif
|
|
}
|
|
EOS
|
|
| VERIFY_CERT SWITCH { cur_rmconf->verify_cert = $2; } EOS
|
|
| SEND_CERT SWITCH { cur_rmconf->send_cert = $2; } EOS
|
|
| SEND_CR SWITCH { cur_rmconf->send_cr = $2; } EOS
|
|
| IDENTIFIER IDENTIFIERTYPE
|
|
{
|
|
/*XXX to be deleted */
|
|
cur_rmconf->idvtype = $2;
|
|
}
|
|
EOS
|
|
| MY_IDENTIFIER IDENTIFIERTYPE identifierstring
|
|
{
|
|
if (set_identifier(&cur_rmconf->idv, $2, $3) != 0) {
|
|
yyerror("failed to set identifer.\n");
|
|
return -1;
|
|
}
|
|
cur_rmconf->idvtype = $2;
|
|
}
|
|
EOS
|
|
| PEERS_IDENTIFIER IDENTIFIERTYPE identifierstring
|
|
{
|
|
if (set_identifier(&cur_rmconf->idv_p, $2, $3) != 0) {
|
|
yyerror("failed to set identifer.\n");
|
|
return -1;
|
|
}
|
|
cur_rmconf->idvtype_p = $2;
|
|
}
|
|
EOS
|
|
| VERIFY_IDENTIFIER SWITCH { cur_rmconf->verify_identifier = $2; } EOS
|
|
| NONCE_SIZE NUMBER { cur_rmconf->nonce_size = $2; } EOS
|
|
| DH_GROUP
|
|
{
|
|
yyerror("dh_group cannot be defined here.");
|
|
return -1;
|
|
}
|
|
dh_group_num EOS
|
|
| KEEPALIVE { cur_rmconf->keepalive = TRUE; } EOS
|
|
| PASSIVE SWITCH { cur_rmconf->passive = $2; } EOS
|
|
| GENERATE_POLICY SWITCH { cur_rmconf->gen_policy = $2; } EOS
|
|
| SUPPORT_MIP6 SWITCH { cur_rmconf->support_mip6 = $2; } EOS
|
|
| INITIAL_CONTACT SWITCH { cur_rmconf->ini_contact = $2; } EOS
|
|
| PROPOSAL_CHECK PROPOSAL_CHECK_LEVEL { cur_rmconf->pcheck_level = $2; } EOS
|
|
| LIFETIME LIFETYPE_TIME NUMBER unittype_time
|
|
{
|
|
prhead->lifetime = $3 * $4;
|
|
}
|
|
EOS
|
|
| LIFETIME LIFETYPE_BYTE NUMBER unittype_byte
|
|
{
|
|
#if 1
|
|
yyerror("byte lifetime support is deprecated");
|
|
return -1;
|
|
#else
|
|
yywarn("the lifetime of bytes in phase 1 "
|
|
"will be ignored at the moment.");
|
|
prhead->lifebyte = fix_lifebyte($3 * $4);
|
|
if (prhead->lifebyte == 0)
|
|
return -1;
|
|
#endif
|
|
}
|
|
EOS
|
|
| PROPOSAL
|
|
{
|
|
struct secprotospec *spspec;
|
|
|
|
spspec = newspspec();
|
|
if (spspec == NULL)
|
|
return -1;
|
|
insspspec(spspec, &prhead);
|
|
}
|
|
BOC isakmpproposal_specs EOC
|
|
;
|
|
exchange_types
|
|
: /* nothing */
|
|
| exchange_types EXCHANGETYPE
|
|
{
|
|
struct etypes *new;
|
|
new = racoon_malloc(sizeof(struct etypes));
|
|
if (new == NULL) {
|
|
yyerror("filed to allocate etypes");
|
|
return -1;
|
|
}
|
|
new->type = $2;
|
|
new->next = NULL;
|
|
if (cur_rmconf->etypes == NULL)
|
|
cur_rmconf->etypes = new;
|
|
else {
|
|
struct etypes *p;
|
|
for (p = cur_rmconf->etypes;
|
|
p->next != NULL;
|
|
p = p->next)
|
|
;
|
|
p->next = new;
|
|
}
|
|
}
|
|
;
|
|
cert_spec
|
|
: CERT_X509 QUOTEDSTRING QUOTEDSTRING
|
|
{
|
|
#ifdef HAVE_SIGNING_C
|
|
cur_rmconf->certtype = $1;
|
|
cur_rmconf->mycertfile = strdup($2->v);
|
|
vfree($2);
|
|
cur_rmconf->myprivfile = strdup($3->v);
|
|
vfree($3);
|
|
#else
|
|
yyerror("directive not supported");
|
|
return -1;
|
|
#endif
|
|
}
|
|
EOS
|
|
;
|
|
dh_group_num
|
|
: ALGORITHMTYPE
|
|
{
|
|
$$ = algtype2doi(algclass_isakmp_dh, $1);
|
|
if ($$ == -1) {
|
|
yyerror("must be DH group");
|
|
return -1;
|
|
}
|
|
}
|
|
| NUMBER
|
|
{
|
|
if (ARRAYLEN(num2dhgroup) > $1 && num2dhgroup[$1] != 0) {
|
|
$$ = num2dhgroup[$1];
|
|
} else {
|
|
yyerror("must be DH group");
|
|
return -1;
|
|
}
|
|
}
|
|
;
|
|
identifierstring
|
|
: /* nothing */ { $$ = NULL; }
|
|
| ADDRSTRING { $$ = $1; }
|
|
| QUOTEDSTRING { $$ = $1; }
|
|
;
|
|
isakmpproposal_specs
|
|
: /* nothing */
|
|
| isakmpproposal_specs isakmpproposal_spec
|
|
;
|
|
isakmpproposal_spec
|
|
: STRENGTH
|
|
{
|
|
yyerror("strength directive is obsoleted.");
|
|
} STRENGTHTYPE EOS
|
|
| LIFETIME LIFETYPE_TIME NUMBER unittype_time
|
|
{
|
|
prhead->spspec->lifetime = $3 * $4;
|
|
}
|
|
EOS
|
|
| LIFETIME LIFETYPE_BYTE NUMBER unittype_byte
|
|
{
|
|
#if 1
|
|
yyerror("byte lifetime support is deprecated");
|
|
return -1;
|
|
#else
|
|
prhead->spspec->lifebyte = fix_lifebyte($3 * $4);
|
|
if (prhead->spspec->lifebyte == 0)
|
|
return -1;
|
|
#endif
|
|
}
|
|
EOS
|
|
| DH_GROUP dh_group_num
|
|
{
|
|
prhead->spspec->algclass[algclass_isakmp_dh] = $2;
|
|
}
|
|
EOS
|
|
| GSSAPI_ID QUOTEDSTRING
|
|
{
|
|
if (prhead->spspec->vendorid != VENDORID_GSSAPI) {
|
|
yyerror("wrong Vendor ID for gssapi_id");
|
|
return -1;
|
|
}
|
|
prhead->spspec->gssid = strdup($2->v);
|
|
}
|
|
EOS
|
|
| ALGORITHM_CLASS ALGORITHMTYPE keylength
|
|
{
|
|
int doi;
|
|
int defklen;
|
|
|
|
doi = algtype2doi($1, $2);
|
|
if (doi == -1) {
|
|
yyerror("algorithm mismatched 1");
|
|
return -1;
|
|
}
|
|
|
|
switch ($1) {
|
|
case algclass_isakmp_enc:
|
|
/* reject suppressed algorithms */
|
|
#ifndef HAVE_OPENSSL_RC5_H
|
|
if ($2 == algtype_rc5) {
|
|
yyerror("algorithm %s not supported",
|
|
s_attr_isakmp_enc(doi));
|
|
return -1;
|
|
}
|
|
#endif
|
|
#ifndef HAVE_OPENSSL_IDEA_H
|
|
if ($2 == algtype_idea) {
|
|
yyerror("algorithm %s not supported",
|
|
s_attr_isakmp_enc(doi));
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
prhead->spspec->algclass[algclass_isakmp_enc] = doi;
|
|
defklen = default_keylen($1, $2);
|
|
if (defklen == 0) {
|
|
if ($3) {
|
|
yyerror("keylen not allowed");
|
|
return -1;
|
|
}
|
|
} else {
|
|
if ($3 && check_keylen($1, $2, $3) < 0) {
|
|
yyerror("invalid keylen %d", $3);
|
|
return -1;
|
|
}
|
|
}
|
|
if ($3)
|
|
prhead->spspec->encklen = $3;
|
|
else
|
|
prhead->spspec->encklen = defklen;
|
|
break;
|
|
case algclass_isakmp_hash:
|
|
prhead->spspec->algclass[algclass_isakmp_hash] = doi;
|
|
break;
|
|
case algclass_isakmp_ameth:
|
|
prhead->spspec->algclass[algclass_isakmp_ameth] = doi;
|
|
/*
|
|
* We may have to set the Vendor ID for the
|
|
* authentication method we're using.
|
|
*/
|
|
switch ($2) {
|
|
case algtype_gssapikrb:
|
|
if (prhead->spspec->vendorid !=
|
|
VENDORID_UNKNOWN) {
|
|
yyerror("Vendor ID mismatch "
|
|
"for auth method");
|
|
return -1;
|
|
}
|
|
/*
|
|
* For interoperability with Win2k,
|
|
* we set the Vendor ID to "GSSAPI".
|
|
*/
|
|
prhead->spspec->vendorid =
|
|
VENDORID_GSSAPI;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
yyerror("algorithm mismatched 2");
|
|
return -1;
|
|
}
|
|
}
|
|
EOS
|
|
;
|
|
|
|
unittype_time
|
|
: UNITTYPE_SEC { $$ = 1; }
|
|
| UNITTYPE_MIN { $$ = 60; }
|
|
| UNITTYPE_HOUR { $$ = (60 * 60); }
|
|
;
|
|
unittype_byte
|
|
: UNITTYPE_BYTE { $$ = 1; }
|
|
| UNITTYPE_KBYTES { $$ = 1024; }
|
|
| UNITTYPE_MBYTES { $$ = (1024 * 1024); }
|
|
| UNITTYPE_TBYTES { $$ = (1024 * 1024 * 1024); }
|
|
;
|
|
%%
|
|
|
|
static struct proposalspec *
|
|
newprspec()
|
|
{
|
|
struct proposalspec *new;
|
|
|
|
new = racoon_calloc(1, sizeof(*new));
|
|
if (new == NULL)
|
|
yyerror("failed to allocate proposal");
|
|
|
|
return new;
|
|
}
|
|
|
|
static void
|
|
cleanprhead()
|
|
{
|
|
struct proposalspec *p, *next;
|
|
|
|
if (prhead == NULL)
|
|
return;
|
|
|
|
for (p = prhead; p != NULL; p = next) {
|
|
next = p->next;
|
|
racoon_free(p);
|
|
}
|
|
|
|
prhead = NULL;
|
|
}
|
|
|
|
/*
|
|
* insert into head of list.
|
|
*/
|
|
static void
|
|
insprspec(prspec, head)
|
|
struct proposalspec *prspec;
|
|
struct proposalspec **head;
|
|
{
|
|
if (*head != NULL)
|
|
(*head)->prev = prspec;
|
|
prspec->next = *head;
|
|
*head = prspec;
|
|
}
|
|
|
|
static struct secprotospec *
|
|
newspspec()
|
|
{
|
|
struct secprotospec *new;
|
|
|
|
new = racoon_calloc(1, sizeof(*new));
|
|
if (new == NULL) {
|
|
yyerror("failed to allocate spproto");
|
|
return NULL;
|
|
}
|
|
|
|
new->encklen = 0; /*XXX*/
|
|
|
|
/*
|
|
* Default to "uknown" vendor -- we will override this
|
|
* as necessary. When we send a Vendor ID payload, an
|
|
* "unknown" will be translated to a KAME/racoon ID.
|
|
*/
|
|
new->vendorid = VENDORID_UNKNOWN;
|
|
|
|
return new;
|
|
}
|
|
|
|
/*
|
|
* insert into head of list.
|
|
*/
|
|
static void
|
|
insspspec(spspec, head)
|
|
struct secprotospec *spspec;
|
|
struct proposalspec **head;
|
|
{
|
|
spspec->back = *head;
|
|
|
|
if ((*head)->spspec != NULL)
|
|
(*head)->spspec->prev = spspec;
|
|
spspec->next = (*head)->spspec;
|
|
(*head)->spspec = spspec;
|
|
}
|
|
|
|
/* set final acceptable proposal */
|
|
static int
|
|
set_isakmp_proposal(rmconf, prspec)
|
|
struct remoteconf *rmconf;
|
|
struct proposalspec *prspec;
|
|
{
|
|
struct proposalspec *p;
|
|
struct secprotospec *s;
|
|
int prop_no = 1;
|
|
int trns_no = 1;
|
|
u_int32_t types[MAXALGCLASS];
|
|
|
|
p = prspec;
|
|
if (p->next != 0) {
|
|
plog(LLV_ERROR, LOCATION, NULL,
|
|
"multiple proposal definition.\n");
|
|
return -1;
|
|
}
|
|
|
|
/* mandatory check */
|
|
if (p->spspec == NULL) {
|
|
yyerror("no remote specification found: %s.\n",
|
|
rm2str(rmconf));
|
|
return -1;
|
|
}
|
|
for (s = p->spspec; s != NULL; s = s->next) {
|
|
/* XXX need more to check */
|
|
if (s->algclass[algclass_isakmp_enc] == 0) {
|
|
yyerror("encryption algorithm required.");
|
|
return -1;
|
|
}
|
|
if (s->algclass[algclass_isakmp_hash] == 0) {
|
|
yyerror("hash algorithm required.");
|
|
return -1;
|
|
}
|
|
if (s->algclass[algclass_isakmp_dh] == 0) {
|
|
yyerror("DH group required.");
|
|
return -1;
|
|
}
|
|
if (s->algclass[algclass_isakmp_ameth] == 0) {
|
|
yyerror("authentication method required.");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* skip to last part */
|
|
for (s = p->spspec; s->next != NULL; s = s->next)
|
|
;
|
|
|
|
while (s != NULL) {
|
|
plog(LLV_DEBUG2, LOCATION, NULL,
|
|
"lifetime = %ld\n", (long)
|
|
(s->lifetime ? s->lifetime : p->lifetime));
|
|
plog(LLV_DEBUG2, LOCATION, NULL,
|
|
"lifebyte = %d\n",
|
|
s->lifebyte ? s->lifebyte : p->lifebyte);
|
|
plog(LLV_DEBUG2, LOCATION, NULL,
|
|
"encklen=%d\n", s->encklen);
|
|
|
|
memset(types, 0, ARRAYLEN(types));
|
|
types[algclass_isakmp_enc] = s->algclass[algclass_isakmp_enc];
|
|
types[algclass_isakmp_hash] = s->algclass[algclass_isakmp_hash];
|
|
types[algclass_isakmp_dh] = s->algclass[algclass_isakmp_dh];
|
|
types[algclass_isakmp_ameth] =
|
|
s->algclass[algclass_isakmp_ameth];
|
|
|
|
/* expanding spspec */
|
|
clean_tmpalgtype();
|
|
trns_no = expand_isakmpspec(prop_no, trns_no, types,
|
|
algclass_isakmp_enc, algclass_isakmp_ameth + 1,
|
|
s->lifetime ? s->lifetime : p->lifetime,
|
|
s->lifebyte ? s->lifebyte : p->lifebyte,
|
|
s->encklen, s->vendorid, s->gssid,
|
|
rmconf);
|
|
if (trns_no == -1) {
|
|
plog(LLV_ERROR, LOCATION, NULL,
|
|
"failed to expand isakmp proposal.\n");
|
|
return -1;
|
|
}
|
|
|
|
s = s->prev;
|
|
}
|
|
|
|
if (rmconf->proposal == NULL) {
|
|
plog(LLV_ERROR, LOCATION, NULL,
|
|
"no proposal found.\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
clean_tmpalgtype()
|
|
{
|
|
int i;
|
|
for (i = 0; i < MAXALGCLASS; i++)
|
|
tmpalgtype[i] = 0; /* means algorithm undefined. */
|
|
}
|
|
|
|
static int
|
|
expand_isakmpspec(prop_no, trns_no, types,
|
|
class, last, lifetime, lifebyte, encklen, vendorid, gssid,
|
|
rmconf)
|
|
int prop_no, trns_no;
|
|
int *types, class, last;
|
|
time_t lifetime;
|
|
int lifebyte;
|
|
int encklen;
|
|
int vendorid;
|
|
char *gssid;
|
|
struct remoteconf *rmconf;
|
|
{
|
|
struct isakmpsa *new;
|
|
|
|
/* debugging */
|
|
{
|
|
int j;
|
|
char tb[10];
|
|
plog(LLV_DEBUG2, LOCATION, NULL,
|
|
"p:%d t:%d\n", prop_no, trns_no);
|
|
for (j = class; j < MAXALGCLASS; j++) {
|
|
snprintf(tb, sizeof(tb), "%d", types[j]);
|
|
plog(LLV_DEBUG2, LOCATION, NULL,
|
|
"%s%s%s%s\n",
|
|
s_algtype(j, types[j]),
|
|
types[j] ? "(" : "",
|
|
tb[0] == '0' ? "" : tb,
|
|
types[j] ? ")" : "");
|
|
}
|
|
plog(LLV_DEBUG2, LOCATION, NULL, "\n");
|
|
}
|
|
|
|
#define TMPALGTYPE2STR(n) \
|
|
s_algtype(algclass_isakmp_##n, types[algclass_isakmp_##n])
|
|
/* check mandatory values */
|
|
if (types[algclass_isakmp_enc] == 0
|
|
|| types[algclass_isakmp_ameth] == 0
|
|
|| types[algclass_isakmp_hash] == 0
|
|
|| types[algclass_isakmp_dh] == 0) {
|
|
yyerror("few definition of algorithm "
|
|
"enc=%s ameth=%s hash=%s dhgroup=%s.\n",
|
|
TMPALGTYPE2STR(enc),
|
|
TMPALGTYPE2STR(ameth),
|
|
TMPALGTYPE2STR(hash),
|
|
TMPALGTYPE2STR(dh));
|
|
return -1;
|
|
}
|
|
#undef TMPALGTYPE2STR
|
|
|
|
/* set new sa */
|
|
new = newisakmpsa();
|
|
if (new == NULL) {
|
|
yyerror("failed to allocate isakmp sa");
|
|
return -1;
|
|
}
|
|
new->prop_no = prop_no;
|
|
new->trns_no = trns_no++;
|
|
new->lifetime = lifetime;
|
|
new->lifebyte = lifebyte;
|
|
new->enctype = types[algclass_isakmp_enc];
|
|
new->encklen = encklen;
|
|
new->authmethod = types[algclass_isakmp_ameth];
|
|
new->hashtype = types[algclass_isakmp_hash];
|
|
new->dh_group = types[algclass_isakmp_dh];
|
|
new->vendorid = vendorid;
|
|
#ifdef HAVE_GSSAPI
|
|
if (gssid != NULL) {
|
|
new->gssid = vmalloc(strlen(gssid) + 1);
|
|
memcpy(new->gssid->v, gssid, new->gssid->l);
|
|
racoon_free(gssid);
|
|
} else
|
|
new->gssid = NULL;
|
|
#endif
|
|
insisakmpsa(new, rmconf);
|
|
|
|
return trns_no;
|
|
}
|
|
|
|
#if 0
|
|
/*
|
|
* fix lifebyte.
|
|
* Must be more than 1024B because its unit is kilobytes.
|
|
* That is defined RFC2407.
|
|
*/
|
|
static int
|
|
fix_lifebyte(t)
|
|
unsigned long t;
|
|
{
|
|
if (t < 1024) {
|
|
yyerror("byte size should be more than 1024B.");
|
|
return 0;
|
|
}
|
|
|
|
return(t / 1024);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
cfparse()
|
|
{
|
|
int error;
|
|
|
|
yycf_init_buffer();
|
|
|
|
if (yycf_set_buffer(lcconf->racoon_conf) != 0)
|
|
return -1;
|
|
|
|
prhead = NULL;
|
|
|
|
error = yyparse();
|
|
if (error != 0) {
|
|
if (yyerrorcount) {
|
|
plog(LLV_ERROR, LOCATION, NULL,
|
|
"fatal parse failure (%d errors)\n",
|
|
yyerrorcount);
|
|
} else {
|
|
plog(LLV_ERROR, LOCATION, NULL,
|
|
"fatal parse failure.\n");
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
if (error == 0 && yyerrorcount) {
|
|
plog(LLV_ERROR, LOCATION, NULL,
|
|
"parse error is nothing, but yyerrorcount is %d.\n",
|
|
yyerrorcount);
|
|
exit(1);
|
|
}
|
|
|
|
yycf_clean_buffer();
|
|
|
|
plog(LLV_DEBUG2, LOCATION, NULL, "parse successed.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
cfreparse()
|
|
{
|
|
flushph2();
|
|
flushph1();
|
|
flushrmconf();
|
|
cleanprhead();
|
|
clean_tmpalgtype();
|
|
yycf_init_buffer();
|
|
|
|
if (yycf_set_buffer(lcconf->racoon_conf) != 0)
|
|
return -1;
|
|
|
|
return(cfparse());
|
|
}
|
|
|