/*
* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/*
* ATM support:
*
* Copyright (c) 1997 Yen Yen Lim and North Dakota State University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Yen Yen Lim and
* North Dakota State University
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef HAVE___ATTRIBUTE__
#define __attribute__(x)
#endif /* HAVE___ATTRIBUTE__ */
/* Address qualifiers. */
#define Q_HOST 1
#define Q_NET 2
#define Q_PORT 3
#define Q_GATEWAY 4
#define Q_PROTO 5
#define Q_PROTOCHAIN 6
#define Q_PORTRANGE 7
/* Protocol qualifiers. */
#define Q_LINK 1
#define Q_IP 2
#define Q_ARP 3
#define Q_RARP 4
#define Q_SCTP 5
#define Q_TCP 6
#define Q_UDP 7
#define Q_ICMP 8
#define Q_IGMP 9
#define Q_IGRP 10
#define Q_ATALK 11
#define Q_DECNET 12
#define Q_LAT 13
#define Q_SCA 14
#define Q_MOPRC 15
#define Q_MOPDL 16
#define Q_IPV6 17
#define Q_ICMPV6 18
#define Q_AH 19
#define Q_ESP 20
#define Q_PIM 21
#define Q_VRRP 22
#define Q_AARP 23
#define Q_ISO 24
#define Q_ESIS 25
#define Q_ISIS 26
#define Q_CLNP 27
#define Q_STP 28
#define Q_IPX 29
#define Q_NETBEUI 30
/* IS-IS Levels */
#define Q_ISIS_L1 31
#define Q_ISIS_L2 32
/* PDU types */
#define Q_ISIS_IIH 33
#define Q_ISIS_LAN_IIH 34
#define Q_ISIS_PTP_IIH 35
#define Q_ISIS_SNP 36
#define Q_ISIS_CSNP 37
#define Q_ISIS_PSNP 38
#define Q_ISIS_LSP 39
#define Q_RADIO 40
#define Q_CARP 41
/* Directional qualifiers. */
#define Q_SRC 1
#define Q_DST 2
#define Q_OR 3
#define Q_AND 4
#define Q_ADDR1 5
#define Q_ADDR2 6
#define Q_ADDR3 7
#define Q_ADDR4 8
#define Q_RA 9
#define Q_TA 10
#define Q_DEFAULT 0
#define Q_UNDEF 255
/* ATM types */
#define A_METAC 22 /* Meta signalling Circuit */
#define A_BCC 23 /* Broadcast Circuit */
#define A_OAMF4SC 24 /* Segment OAM F4 Circuit */
#define A_OAMF4EC 25 /* End-to-End OAM F4 Circuit */
#define A_SC 26 /* Signalling Circuit*/
#define A_ILMIC 27 /* ILMI Circuit */
#define A_OAM 28 /* OAM cells : F4 only */
#define A_OAMF4 29 /* OAM F4 cells: Segment + End-to-end */
#define A_LANE 30 /* LANE traffic */
#define A_LLC 31 /* LLC-encapsulated traffic */
/* Based on Q.2931 signalling protocol */
#define A_SETUP 41 /* Setup message */
#define A_CALLPROCEED 42 /* Call proceeding message */
#define A_CONNECT 43 /* Connect message */
#define A_CONNECTACK 44 /* Connect Ack message */
#define A_RELEASE 45 /* Release message */
#define A_RELEASE_DONE 46 /* Release message */
/* ATM field types */
#define A_VPI 51
#define A_VCI 52
#define A_PROTOTYPE 53
#define A_MSGTYPE 54
#define A_CALLREFTYPE 55
#define A_CONNECTMSG 70 /* returns Q.2931 signalling messages for
establishing and destroying switched
virtual connection */
#define A_METACONNECT 71 /* returns Q.2931 signalling messages for
establishing and destroying predefined
virtual circuits, such as broadcast
circuit, oamf4 segment circuit, oamf4
end-to-end circuits, ILMI circuits or
connection signalling circuit. */
/* MTP2 types */
#define M_FISU 22 /* FISU */
#define M_LSSU 23 /* LSSU */
#define M_MSU 24 /* MSU */
/* MTP2 HSL types */
#define MH_FISU 25 /* FISU for HSL */
#define MH_LSSU 26 /* LSSU */
#define MH_MSU 27 /* MSU */
/* MTP3 field types */
#define M_SIO 1
#define M_OPC 2
#define M_DPC 3
#define M_SLS 4
/* MTP3 field types in case of MTP2 HSL */
#define MH_SIO 5
#define MH_OPC 6
#define MH_DPC 7
#define MH_SLS 8
struct slist;
struct stmt {
int code;
struct slist *jt; /*only for relative jump in block*/
struct slist *jf; /*only for relative jump in block*/
bpf_int32 k;
};
struct slist {
struct stmt s;
struct slist *next;
};
/*
* A bit vector to represent definition sets. We assume TOT_REGISTERS
* is smaller than 8*sizeof(atomset).
*/
typedef bpf_u_int32 atomset;
#define ATOMMASK(n) (1 << (n))
#define ATOMELEM(d, n) (d & ATOMMASK(n))
/*
* An unbounded set.
*/
typedef bpf_u_int32 *uset;
/*
* Total number of atomic entities, including accumulator (A) and index (X).
* We treat all these guys similarly during flow analysis.
*/
#define N_ATOMS (BPF_MEMWORDS+2)
struct edge {
int id;
int code;
uset edom;
struct block *succ;
struct block *pred;
struct edge *next; /* link list of incoming edges for a node */
};
struct block {
int id;
struct slist *stmts; /* side effect stmts */
struct stmt s; /* branch stmt */
int mark;
u_int longjt; /* jt branch requires long jump */
u_int longjf; /* jf branch requires long jump */
int level;
int offset;
int sense;
struct edge et;
struct edge ef;
struct block *head;
struct block *link; /* link field used by optimizer */
uset dom;
uset closure;
struct edge *in_edges;
atomset def, kill;
atomset in_use;
atomset out_use;
int oval;
int val[N_ATOMS];
};
struct arth {
struct block *b; /* protocol checks */
struct slist *s; /* stmt list */
int regno; /* virtual register number of result */
};
struct qual {
unsigned char addr;
unsigned char proto;
unsigned char dir;
unsigned char pad;
};
struct arth *gen_loadi(int);
struct arth *gen_load(int, struct arth *, int);
struct arth *gen_loadlen(void);
struct arth *gen_neg(struct arth *);
struct arth *gen_arth(int, struct arth *, struct arth *);
void gen_and(struct block *, struct block *);
void gen_or(struct block *, struct block *);
void gen_not(struct block *);
struct block *gen_scode(const char *, struct qual);
struct block *gen_ecode(const u_char *, struct qual);
struct block *gen_acode(const u_char *, struct qual);
struct block *gen_mcode(const char *, const char *, unsigned int, struct qual);
#ifdef INET6
struct block *gen_mcode6(const char *, const char *, unsigned int, struct qual);
#endif
struct block *gen_ncode(const char *, bpf_u_int32, struct qual);
struct block *gen_proto_abbrev(int);
struct block *gen_relation(int, struct arth *, struct arth *, int);
struct block *gen_less(int);
struct block *gen_greater(int);
struct block *gen_byteop(int, int, int);
struct block *gen_broadcast(int);
struct block *gen_multicast(int);
struct block *gen_inbound(int);
struct block *gen_llc(void);
struct block *gen_llc_i(void);
struct block *gen_llc_s(void);
struct block *gen_llc_u(void);
struct block *gen_llc_s_subtype(bpf_u_int32);
struct block *gen_llc_u_subtype(bpf_u_int32);
struct block *gen_vlan(int);
struct block *gen_mpls(int);
struct block *gen_pppoed(void);
struct block *gen_pppoes(int);
struct block *gen_geneve(int);
struct block *gen_atmfield_code(int atmfield, bpf_int32 jvalue, bpf_u_int32 jtype, int reverse);
struct block *gen_atmtype_abbrev(int type);
struct block *gen_atmmulti_abbrev(int type);
struct block *gen_mtp2type_abbrev(int type);
struct block *gen_mtp3field_code(int mtp3field, bpf_u_int32 jvalue, bpf_u_int32 jtype, int reverse);
struct block *gen_pf_ifname(const char *);
struct block *gen_pf_rnr(int);
struct block *gen_pf_srnr(int);
struct block *gen_pf_ruleset(char *);
struct block *gen_pf_reason(int);
struct block *gen_pf_action(int);
struct block *gen_pf_dir(int);
struct block *gen_p80211_type(int, int);
struct block *gen_p80211_fcdir(int);
void bpf_optimize(struct block **);
void bpf_error(const char *, ...)
__attribute__((noreturn))
#ifdef __ATTRIBUTE___FORMAT_OK
__attribute__((format (printf, 1, 2)))
#endif /* __ATTRIBUTE___FORMAT_OK */
;
void finish_parse(struct block *);
char *sdup(const char *);
struct bpf_insn *icode_to_fcode(struct block *, u_int *);
int pcap_parse(void);
void lex_init(const char *);
void lex_cleanup(void);
void sappend(struct slist *, struct slist *);
/* XXX */
#define JT(b) ((b)->et.succ)
#define JF(b) ((b)->ef.succ)
extern int no_optimize;