37133ba702
which should improve readability, and also to ease the port to platforms that do not support %llu MFC after: 3 days
289 lines
6.7 KiB
C
289 lines
6.7 KiB
C
/*
|
|
* Copyright (c) 2002-2003 Luigi Rizzo
|
|
* Copyright (c) 1996 Alex Nash, Paul Traina, Poul-Henning Kamp
|
|
* Copyright (c) 1994 Ugen J.S.Antsilevich
|
|
*
|
|
* Idea and grammar partially left from:
|
|
* Copyright (c) 1993 Daniel Boulet
|
|
*
|
|
* Redistribution and use in source forms, with and without modification,
|
|
* are permitted provided that this entire comment appears intact.
|
|
*
|
|
* Redistribution in binary form may occur without any restrictions.
|
|
* Obviously, it would be nice if you gave credit where credit is due
|
|
* but requiring it would be too onerous.
|
|
*
|
|
* This software is provided ``AS IS'' without any warranties of any kind.
|
|
*
|
|
* NEW command line interface for IP firewall facility
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Options that can be set on the command line.
|
|
* When reading commands from a file, a subset of the options can also
|
|
* be applied globally by specifying them before the file name.
|
|
* After that, each line can contain its own option that changes
|
|
* the global value.
|
|
* XXX The context is not restored after each line.
|
|
*/
|
|
|
|
struct cmdline_opts {
|
|
/* boolean options: */
|
|
int do_value_as_ip; /* show table value as IP */
|
|
int do_resolv; /* try to resolve all ip to names */
|
|
int do_time; /* Show time stamps */
|
|
int do_quiet; /* Be quiet in add and flush */
|
|
int do_pipe; /* this cmd refers to a pipe/queue/sched */
|
|
int do_nat; /* this cmd refers to a nat config */
|
|
int do_dynamic; /* display dynamic rules */
|
|
int do_expired; /* display expired dynamic rules */
|
|
int do_compact; /* show rules in compact mode */
|
|
int do_force; /* do not ask for confirmation */
|
|
int show_sets; /* display the set each rule belongs to */
|
|
int test_only; /* only check syntax */
|
|
int comment_only; /* only print action and comment */
|
|
int verbose; /* be verbose on some commands */
|
|
|
|
/* The options below can have multiple values. */
|
|
|
|
int do_sort; /* field to sort results (0 = no) */
|
|
/* valid fields are 1 and above */
|
|
|
|
int use_set; /* work with specified set number */
|
|
/* 0 means all sets, otherwise apply to set use_set - 1 */
|
|
|
|
};
|
|
|
|
extern struct cmdline_opts co;
|
|
|
|
/*
|
|
* _s_x is a structure that stores a string <-> token pairs, used in
|
|
* various places in the parser. Entries are stored in arrays,
|
|
* with an entry with s=NULL as terminator.
|
|
* The search routines are match_token() and match_value().
|
|
* Often, an element with x=0 contains an error string.
|
|
*
|
|
*/
|
|
struct _s_x {
|
|
char const *s;
|
|
int x;
|
|
};
|
|
|
|
enum tokens {
|
|
TOK_NULL=0,
|
|
|
|
TOK_OR,
|
|
TOK_NOT,
|
|
TOK_STARTBRACE,
|
|
TOK_ENDBRACE,
|
|
|
|
TOK_ACCEPT,
|
|
TOK_COUNT,
|
|
TOK_PIPE,
|
|
TOK_LINK,
|
|
TOK_QUEUE,
|
|
TOK_FLOWSET,
|
|
TOK_SCHED,
|
|
TOK_DIVERT,
|
|
TOK_TEE,
|
|
TOK_NETGRAPH,
|
|
TOK_NGTEE,
|
|
TOK_FORWARD,
|
|
TOK_SKIPTO,
|
|
TOK_DENY,
|
|
TOK_REJECT,
|
|
TOK_RESET,
|
|
TOK_UNREACH,
|
|
TOK_CHECKSTATE,
|
|
TOK_NAT,
|
|
TOK_REASS,
|
|
|
|
TOK_ALTQ,
|
|
TOK_LOG,
|
|
TOK_TAG,
|
|
TOK_UNTAG,
|
|
|
|
TOK_TAGGED,
|
|
TOK_UID,
|
|
TOK_GID,
|
|
TOK_JAIL,
|
|
TOK_IN,
|
|
TOK_LIMIT,
|
|
TOK_KEEPSTATE,
|
|
TOK_LAYER2,
|
|
TOK_OUT,
|
|
TOK_DIVERTED,
|
|
TOK_DIVERTEDLOOPBACK,
|
|
TOK_DIVERTEDOUTPUT,
|
|
TOK_XMIT,
|
|
TOK_RECV,
|
|
TOK_VIA,
|
|
TOK_FRAG,
|
|
TOK_IPOPTS,
|
|
TOK_IPLEN,
|
|
TOK_IPID,
|
|
TOK_IPPRECEDENCE,
|
|
TOK_DSCP,
|
|
TOK_IPTOS,
|
|
TOK_IPTTL,
|
|
TOK_IPVER,
|
|
TOK_ESTAB,
|
|
TOK_SETUP,
|
|
TOK_TCPDATALEN,
|
|
TOK_TCPFLAGS,
|
|
TOK_TCPOPTS,
|
|
TOK_TCPSEQ,
|
|
TOK_TCPACK,
|
|
TOK_TCPWIN,
|
|
TOK_ICMPTYPES,
|
|
TOK_MAC,
|
|
TOK_MACTYPE,
|
|
TOK_VERREVPATH,
|
|
TOK_VERSRCREACH,
|
|
TOK_ANTISPOOF,
|
|
TOK_IPSEC,
|
|
TOK_COMMENT,
|
|
|
|
TOK_PLR,
|
|
TOK_NOERROR,
|
|
TOK_BUCKETS,
|
|
TOK_DSTIP,
|
|
TOK_SRCIP,
|
|
TOK_DSTPORT,
|
|
TOK_SRCPORT,
|
|
TOK_ALL,
|
|
TOK_MASK,
|
|
TOK_FLOW_MASK,
|
|
TOK_SCHED_MASK,
|
|
TOK_BW,
|
|
TOK_DELAY,
|
|
TOK_PROFILE,
|
|
TOK_BURST,
|
|
TOK_RED,
|
|
TOK_GRED,
|
|
TOK_DROPTAIL,
|
|
TOK_PROTO,
|
|
/* dummynet tokens */
|
|
TOK_WEIGHT,
|
|
TOK_LMAX,
|
|
TOK_PRI,
|
|
TOK_TYPE,
|
|
TOK_SLOTSIZE,
|
|
|
|
TOK_IP,
|
|
TOK_IF,
|
|
TOK_ALOG,
|
|
TOK_DENY_INC,
|
|
TOK_SAME_PORTS,
|
|
TOK_UNREG_ONLY,
|
|
TOK_RESET_ADDR,
|
|
TOK_ALIAS_REV,
|
|
TOK_PROXY_ONLY,
|
|
TOK_REDIR_ADDR,
|
|
TOK_REDIR_PORT,
|
|
TOK_REDIR_PROTO,
|
|
|
|
TOK_IPV6,
|
|
TOK_FLOWID,
|
|
TOK_ICMP6TYPES,
|
|
TOK_EXT6HDR,
|
|
TOK_DSTIP6,
|
|
TOK_SRCIP6,
|
|
|
|
TOK_IPV4,
|
|
TOK_UNREACH6,
|
|
TOK_RESET6,
|
|
|
|
TOK_FIB,
|
|
TOK_SETFIB,
|
|
TOK_LOOKUP,
|
|
};
|
|
/*
|
|
* the following macro returns an error message if we run out of
|
|
* arguments.
|
|
*/
|
|
#define NEED(_p, msg) {if (!_p) errx(EX_USAGE, msg);}
|
|
#define NEED1(msg) {if (!(*av)) errx(EX_USAGE, msg);}
|
|
|
|
int pr_u64(uint64_t *pd, int width);
|
|
|
|
/* memory allocation support */
|
|
void *safe_calloc(size_t number, size_t size);
|
|
void *safe_realloc(void *ptr, size_t size);
|
|
|
|
/* string comparison functions used for historical compatibility */
|
|
int _substrcmp(const char *str1, const char* str2);
|
|
int _substrcmp2(const char *str1, const char* str2, const char* str3);
|
|
|
|
/* utility functions */
|
|
int match_token(struct _s_x *table, char *string);
|
|
char const *match_value(struct _s_x *p, int value);
|
|
|
|
int do_cmd(int optname, void *optval, uintptr_t optlen);
|
|
|
|
struct in6_addr;
|
|
void n2mask(struct in6_addr *mask, int n);
|
|
int contigmask(uint8_t *p, int len);
|
|
|
|
/*
|
|
* Forward declarations to avoid include way too many headers.
|
|
* C does not allow duplicated typedefs, so we use the base struct
|
|
* that the typedef points to.
|
|
* Should the typedefs use a different type, the compiler will
|
|
* still detect the change when compiling the body of the
|
|
* functions involved, so we do not lose error checking.
|
|
*/
|
|
struct _ipfw_insn;
|
|
struct _ipfw_insn_altq;
|
|
struct _ipfw_insn_u32;
|
|
struct _ipfw_insn_ip6;
|
|
struct _ipfw_insn_icmp6;
|
|
|
|
/*
|
|
* The reserved set numer. This is a constant in ip_fw.h
|
|
* but we store it in a variable so other files do not depend
|
|
* in that header just for one constant.
|
|
*/
|
|
extern int resvd_set_number;
|
|
|
|
/* first-level command handlers */
|
|
void ipfw_add(char *av[]);
|
|
void ipfw_show_nat(int ac, char **av);
|
|
void ipfw_config_pipe(int ac, char **av);
|
|
void ipfw_config_nat(int ac, char **av);
|
|
void ipfw_sets_handler(char *av[]);
|
|
void ipfw_table_handler(int ac, char *av[]);
|
|
void ipfw_sysctl_handler(char *av[], int which);
|
|
void ipfw_delete(char *av[]);
|
|
void ipfw_flush(int force);
|
|
void ipfw_zero(int ac, char *av[], int optname);
|
|
void ipfw_list(int ac, char *av[], int show_counters);
|
|
|
|
/* altq.c */
|
|
void altq_set_enabled(int enabled);
|
|
u_int32_t altq_name_to_qid(const char *name);
|
|
|
|
void print_altq_cmd(struct _ipfw_insn_altq *altqptr);
|
|
|
|
/* dummynet.c */
|
|
void dummynet_list(int ac, char *av[], int show_counters);
|
|
void dummynet_flush(void);
|
|
int ipfw_delete_pipe(int pipe_or_queue, int n);
|
|
|
|
/* ipv6.c */
|
|
void print_unreach6_code(uint16_t code);
|
|
void print_ip6(struct _ipfw_insn_ip6 *cmd, char const *s);
|
|
void print_flow6id(struct _ipfw_insn_u32 *cmd);
|
|
void print_icmp6types(struct _ipfw_insn_u32 *cmd);
|
|
void print_ext6hdr(struct _ipfw_insn *cmd );
|
|
|
|
struct _ipfw_insn *add_srcip6(struct _ipfw_insn *cmd, char *av);
|
|
struct _ipfw_insn *add_dstip6(struct _ipfw_insn *cmd, char *av);
|
|
|
|
void fill_flow6(struct _ipfw_insn_u32 *cmd, char *av );
|
|
void fill_unreach6_code(u_short *codep, char *str);
|
|
void fill_icmp6types(struct _ipfw_insn_icmp6 *cmd, char *av);
|
|
int fill_ext6hdr(struct _ipfw_insn *cmd, char *av);
|