diff options
Diffstat (limited to 'sys/contrib/ipfilter/netinet/ip_fil.h')
| -rw-r--r-- | sys/contrib/ipfilter/netinet/ip_fil.h | 402 |
1 files changed, 255 insertions, 147 deletions
diff --git a/sys/contrib/ipfilter/netinet/ip_fil.h b/sys/contrib/ipfilter/netinet/ip_fil.h index edbd685..14f4861 100644 --- a/sys/contrib/ipfilter/netinet/ip_fil.h +++ b/sys/contrib/ipfilter/netinet/ip_fil.h @@ -1,12 +1,12 @@ /* - * Copyright (C) 1993-1997 by Darren Reed. + * Copyright (C) 1993-2000 by Darren Reed. * * Redistribution and use in source and binary forms are permitted * provided that this notice is preserved and due credit is given * to the original author and the contributors. * * @(#)ip_fil.h 1.35 6/5/96 - * $Id: ip_fil.h,v 2.0.2.39.2.11 1998/05/23 14:29:37 darrenr Exp $ + * $Id: ip_fil.h,v 2.29.2.2 2000/05/22 10:26:13 darrenr Exp $ */ #ifndef __IP_FIL_H__ @@ -21,11 +21,11 @@ #define IPAUTH_NAME "/dev/ipauth" #ifndef SOLARIS -#define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4))) +# define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4))) #endif #if defined(KERNEL) && !defined(_KERNEL) -#define _KERNEL +# define _KERNEL #endif #ifndef __P @@ -37,94 +37,132 @@ #endif #if defined(__STDC__) || defined(__GNUC__) -#define SIOCADAFR _IOW('r', 60, struct frentry) -#define SIOCRMAFR _IOW('r', 61, struct frentry) -#define SIOCSETFF _IOW('r', 62, u_int) -#define SIOCGETFF _IOR('r', 63, u_int) -#define SIOCGETFS _IOR('r', 64, struct friostat) -#define SIOCIPFFL _IOWR('r', 65, int) -#define SIOCIPFFB _IOR('r', 66, int) -#define SIOCADIFR _IOW('r', 67, struct frentry) -#define SIOCRMIFR _IOW('r', 68, struct frentry) -#define SIOCSWAPA _IOR('r', 69, u_int) -#define SIOCINAFR _IOW('r', 70, struct frentry) -#define SIOCINIFR _IOW('r', 71, struct frentry) -#define SIOCFRENB _IOW('r', 72, u_int) -#define SIOCFRSYN _IOW('r', 73, u_int) -#define SIOCFRZST _IOWR('r', 74, struct friostat) -#define SIOCZRLST _IOWR('r', 75, struct frentry) -#define SIOCAUTHW _IOWR('r', 76, struct fr_info) -#define SIOCAUTHR _IOWR('r', 77, struct fr_info) -#define SIOCATHST _IOWR('r', 78, struct fr_authstat) +# define SIOCADAFR _IOW('r', 60, struct frentry *) +# define SIOCRMAFR _IOW('r', 61, struct frentry *) +# define SIOCSETFF _IOW('r', 62, u_int) +# define SIOCGETFF _IOR('r', 63, u_int) +# define SIOCGETFS _IOWR('r', 64, struct friostat *) +# define SIOCIPFFL _IOWR('r', 65, int) +# define SIOCIPFFB _IOR('r', 66, int) +# define SIOCADIFR _IOW('r', 67, struct frentry *) +# define SIOCRMIFR _IOW('r', 68, struct frentry *) +# define SIOCSWAPA _IOR('r', 69, u_int) +# define SIOCINAFR _IOW('r', 70, struct frentry *) +# define SIOCINIFR _IOW('r', 71, struct frentry *) +# define SIOCFRENB _IOW('r', 72, u_int) +# define SIOCFRSYN _IOW('r', 73, u_int) +# define SIOCFRZST _IOWR('r', 74, struct friostat *) +# define SIOCZRLST _IOWR('r', 75, struct frentry *) +# define SIOCAUTHW _IOWR('r', 76, struct fr_info *) +# define SIOCAUTHR _IOWR('r', 77, struct fr_info *) +# define SIOCATHST _IOWR('r', 78, struct fr_authstat *) +# define SIOCSTLCK _IOWR('r', 79, u_int) +# define SIOCSTPUT _IOWR('r', 80, struct ipstate_save *) +# define SIOCSTGET _IOWR('r', 81, struct ipstate_save *) +# define SIOCSTGSZ _IOWR('r', 82, struct natget *) +# define SIOCGFRST _IOWR('r', 83, struct ipfrstat *) #else -#define SIOCADAFR _IOW(r, 60, struct frentry) -#define SIOCRMAFR _IOW(r, 61, struct frentry) -#define SIOCSETFF _IOW(r, 62, u_int) -#define SIOCGETFF _IOR(r, 63, u_int) -#define SIOCGETFS _IOR(r, 64, struct friostat) -#define SIOCIPFFL _IOWR(r, 65, int) -#define SIOCIPFFB _IOR(r, 66, int) -#define SIOCADIFR _IOW(r, 67, struct frentry) -#define SIOCRMIFR _IOW(r, 68, struct frentry) -#define SIOCSWAPA _IOR(r, 69, u_int) -#define SIOCINAFR _IOW(r, 70, struct frentry) -#define SIOCINIFR _IOW(r, 71, struct frentry) -#define SIOCFRENB _IOW(r, 72, u_int) -#define SIOCFRSYN _IOW(r, 73, u_int) -#define SIOCFRZST _IOWR(r, 74, struct friostat) -#define SIOCZRLST _IOWR(r, 75, struct frentry) -#define SIOCAUTHW _IOWR(r, 76, struct fr_info) -#define SIOCAUTHR _IOWR(r, 77, struct fr_info) -#define SIOCATHST _IOWR(r, 78, struct fr_authstat) +# define SIOCADAFR _IOW(r, 60, struct frentry *) +# define SIOCRMAFR _IOW(r, 61, struct frentry *) +# define SIOCSETFF _IOW(r, 62, u_int) +# define SIOCGETFF _IOR(r, 63, u_int) +# define SIOCGETFS _IOWR(r, 64, struct friostat *) +# define SIOCIPFFL _IOWR(r, 65, int) +# define SIOCIPFFB _IOR(r, 66, int) +# define SIOCADIFR _IOW(r, 67, struct frentry *) +# define SIOCRMIFR _IOW(r, 68, struct frentry *) +# define SIOCSWAPA _IOR(r, 69, u_int) +# define SIOCINAFR _IOW(r, 70, struct frentry *) +# define SIOCINIFR _IOW(r, 71, struct frentry *) +# define SIOCFRENB _IOW(r, 72, u_int) +# define SIOCFRSYN _IOW(r, 73, u_int) +# define SIOCFRZST _IOWR(r, 74, struct friostat *) +# define SIOCZRLST _IOWR(r, 75, struct frentry *) +# define SIOCAUTHW _IOWR(r, 76, struct fr_info *) +# define SIOCAUTHR _IOWR(r, 77, struct fr_info *) +# define SIOCATHST _IOWR(r, 78, struct fr_authstat *) +# define SIOCSTLCK _IOWR(r, 79, u_int) +# define SIOCSTPUT _IOWR(r, 80, struct ipstate_save *) +# define SIOCSTGET _IOWR(r, 81, struct ipstate_save *) +# define SIOCSTGSZ _IOWR(r, 82, struct natget *) +# define SIOCGFRST _IOWR(r, 83, struct ipfrstat *) #endif #define SIOCADDFR SIOCADAFR #define SIOCDELFR SIOCRMAFR #define SIOCINSFR SIOCINAFR + typedef struct fr_ip { - u_char fi_v:4; /* IP version */ - u_char fi_fl:4; /* packet flags */ - u_char fi_tos; - u_char fi_ttl; - u_char fi_p; - struct in_addr fi_src; - struct in_addr fi_dst; + u_32_t fi_v:4; /* IP version */ + u_32_t fi_fl:4; /* packet flags */ + u_32_t fi_tos:8; /* IP packet TOS */ + u_32_t fi_ttl:8; /* IP packet TTL */ + u_32_t fi_p:8; /* IP packet protocol */ + union i6addr fi_src; /* source address from packet */ + union i6addr fi_dst; /* destination address from packet */ u_32_t fi_optmsk; /* bitmask composed from IP options */ u_short fi_secmsk; /* bitmask composed from IP security options */ - u_short fi_auth; + u_short fi_auth; /* authentication code from IP sec. options */ } fr_ip_t; #define FI_OPTIONS (FF_OPTIONS >> 24) #define FI_TCPUDP (FF_TCPUDP >> 24) /* TCP/UCP implied comparison*/ #define FI_FRAG (FF_FRAG >> 24) #define FI_SHORT (FF_SHORT >> 24) +#define FI_CMP (FI_OPTIONS|FI_TCPUDP|FI_SHORT) + +#define fi_saddr fi_src.in4.s_addr +#define fi_daddr fi_dst.in4.s_addr + + +/* + * These are both used by the state and NAT code to indicate that one port or + * the other should be treated as a wildcard. + */ +#define FI_W_SPORT 0x00000100 +#define FI_W_DPORT 0x00000200 +#define FI_WILDP (FI_W_SPORT|FI_W_DPORT) +#define FI_W_SADDR 0x00000400 +#define FI_W_DADDR 0x00000800 +#define FI_WILDA (FI_W_SADDR|FI_W_DADDR) +#define FI_NEWFR 0x00001000 typedef struct fr_info { - struct fr_ip fin_fi; - u_short fin_data[2]; - u_short fin_out; - u_short fin_hlen; - u_char fin_tcpf; - u_char fin_icode; /* From here on is packet specific */ - u_short fin_rule; - u_short fin_group; - u_short fin_dlen; - u_short fin_id; - void *fin_ifp; - struct frentry *fin_fr; + void *fin_ifp; /* interface packet is `on' */ + struct fr_ip fin_fi; /* IP Packet summary */ + u_short fin_data[2]; /* TCP/UDP ports, ICMP code/type */ + u_char fin_out; /* in or out ? 1 == out, 0 == in */ + u_char fin_rev; /* state only: 1 = reverse */ + u_short fin_hlen; /* length of IP header in bytes */ + u_char fin_tcpf; /* TCP header flags (SYN, ACK, etc) */ + /* From here on is packet specific */ + u_char fin_icode; /* ICMP error to return */ + u_short fin_rule; /* rule # last matched */ + u_32_t fin_group; /* group number, -1 for none */ + struct frentry *fin_fr; /* last matching rule */ char *fin_dp; /* start of data past IP header */ - void *fin_mp; + u_short fin_dlen; /* length of data portion of packet */ + u_short fin_id; /* IP packet id field */ + void *fin_mp; /* pointer to pointer to mbuf */ +#if SOLARIS + void *fin_qfm; /* pointer to mblk where pkt starts */ + void *fin_qif; +#endif + u_short fin_plen; + u_short fin_off; } fr_info_t; +#define fin_v fin_fi.fi_v + /* * Size for compares on fr_info structures */ -#define FI_CSIZE (sizeof(struct fr_ip) + sizeof(u_short) * 4 + \ - sizeof(u_char)) +#define FI_CSIZE offsetof(fr_info_t, fin_icode) + /* * Size for copying cache fr_info structure */ -#define FI_COPYSIZE (sizeof(fr_info_t) - sizeof(void *) * 2) +#define FI_COPYSIZE offsetof(fr_info_t, fin_dp) typedef struct frdest { void *fd_ifp; @@ -132,13 +170,36 @@ typedef struct frdest { char fd_ifname[IFNAMSIZ]; } frdest_t; +typedef struct frpcmp { + int frp_cmp; /* data for port comparisons */ + u_short frp_port; /* top port for <> and >< */ + u_short frp_top; /* top port for <> and >< */ +} frpcmp_t; + +typedef struct frtuc { + u_char ftu_tcpfm; /* tcp flags mask */ + u_char ftu_tcpf; /* tcp flags */ + frpcmp_t ftu_src; + frpcmp_t ftu_dst; +} frtuc_t; + +#define ftu_scmp ftu_src.frp_cmp +#define ftu_dcmp ftu_dst.frp_cmp +#define ftu_sport ftu_src.frp_port +#define ftu_dport ftu_dst.frp_port +#define ftu_stop ftu_src.frp_top +#define ftu_dtop ftu_dst.frp_top + typedef struct frentry { struct frentry *fr_next; - u_short fr_group; /* group to which this rule belongs */ - u_short fr_grhead; /* group # which this rule starts */ + u_32_t fr_group; /* group to which this rule belongs */ + u_32_t fr_grhead; /* group # which this rule starts */ struct frentry *fr_grp; int fr_ref; /* reference count - for grouping */ void *fr_ifa; +#if BSD >= 199306 + void *fr_oifa; +#endif /* * These are only incremented when a packet matches this rule and * it is the last match @@ -151,34 +212,42 @@ typedef struct frentry { struct fr_ip fr_ip; struct fr_ip fr_mip; /* mask structure */ - u_char fr_tcpfm; /* tcp flags mask */ - u_char fr_tcpf; /* tcp flags */ u_short fr_icmpm; /* data for ICMP packets (mask) */ u_short fr_icmp; - u_char fr_scmp; /* data for port comparisons */ - u_char fr_dcmp; - u_short fr_dport; - u_short fr_sport; - u_short fr_stop; /* top port for <> and >< */ - u_short fr_dtop; /* top port for <> and >< */ + frtuc_t fr_tuc; u_32_t fr_flags; /* per-rule flags && options (see below) */ - int fr_skip; /* # of rules to skip */ + u_int fr_skip; /* # of rules to skip */ + u_int fr_loglevel; /* syslog log facility + priority */ int (*fr_func) __P((int, ip_t *, fr_info_t *)); /* call this function */ - char fr_icode; /* return ICMP code */ + int fr_sap; /* For solaris only */ + u_char fr_icode; /* return ICMP code */ char fr_ifname[IFNAMSIZ]; +#if BSD >= 199306 + char fr_oifname[IFNAMSIZ]; +#endif struct frdest fr_tif; /* "to" interface */ struct frdest fr_dif; /* duplicate packet interfaces */ + u_int fr_cksum; /* checksum on filter rules for performance */ } frentry_t; +#define fr_v fr_ip.fi_v #define fr_proto fr_ip.fi_p #define fr_ttl fr_ip.fi_ttl #define fr_tos fr_ip.fi_tos -#define fr_dst fr_ip.fi_dst -#define fr_src fr_ip.fi_src -#define fr_dmsk fr_mip.fi_dst -#define fr_smsk fr_mip.fi_src +#define fr_tcpfm fr_tuc.ftu_tcpfm +#define fr_tcpf fr_tuc.ftu_tcpf +#define fr_scmp fr_tuc.ftu_scmp +#define fr_dcmp fr_tuc.ftu_dcmp +#define fr_dport fr_tuc.ftu_dport +#define fr_sport fr_tuc.ftu_sport +#define fr_stop fr_tuc.ftu_stop +#define fr_dtop fr_tuc.ftu_dtop +#define fr_dst fr_ip.fi_dst.in4 +#define fr_src fr_ip.fi_src.in4 +#define fr_dmsk fr_mip.fi_dst.in4 +#define fr_smsk fr_mip.fi_src.in4 #ifndef offsetof #define offsetof(t,m) (int)((&((t *)0L)->m)) @@ -199,6 +268,7 @@ typedef struct frentry { #define FR_LOGFIRST 0x00040 /* Log the first byte if state held */ #define FR_RETRST 0x00080 /* Return TCP RST packet - reset connection */ #define FR_RETICMP 0x00100 /* Return ICMP unreachable packet */ +#define FR_FAKEICMP 0x00180 /* Return ICMP unreachable with fake source */ #define FR_NOMATCH 0x00200 /* no match occured */ #define FR_ACCOUNT 0x00400 /* count packet bytes */ #define FR_KEEPFRAG 0x00800 /* keep fragment information */ @@ -213,8 +283,10 @@ typedef struct frentry { #define FR_NOTDSTIP 0x100000 /* not the dst IP# */ #define FR_AUTH 0x200000 /* use authentication */ #define FR_PREAUTH 0x400000 /* require preauthentication */ +#define FR_DONTCACHE 0x800000 /* don't cache the result */ #define FR_LOGMASK (FR_LOG|FR_LOGP|FR_LOGB) +#define FR_RETMASK (FR_RETICMP|FR_RETRST|FR_FAKEICMP) /* * These correspond to #define's for FI_* and are stored in fr_flags @@ -246,6 +318,7 @@ typedef struct filterstats { u_long fr_pass; /* packets allowed */ u_long fr_block; /* packets denied */ u_long fr_nom; /* packets which don't match any rule */ + u_long fr_short; /* packets which are short */ u_long fr_ppkl; /* packets allowed and logged */ u_long fr_bpkl; /* packets denied and logged */ u_long fr_npkl; /* packets unmatched and logged */ @@ -261,11 +334,16 @@ typedef struct filterstats { u_long fr_chit; /* cached hit */ u_long fr_tcpbad; /* TCP checksum check failures */ u_long fr_pull[2]; /* good and bad pullup attempts */ + u_long fr_badsrc; /* source received doesn't match route */ #if SOLARIS + u_long fr_notdata; /* PROTO/PCPROTO that have no data */ + u_long fr_nodata; /* mblks that have no data */ u_long fr_bad; /* bad IP packets to the filter */ u_long fr_notip; /* packets passed through no on ip queue */ u_long fr_drop; /* packets dropped - no info for them! */ + u_long fr_copy; /* messages copied due to db_ref > 1 */ #endif + u_long fr_ipv6[2]; /* IPv6 packets in/out */ } filterstats_t; /* @@ -277,9 +355,19 @@ typedef struct friostat { struct frentry *f_fout[2]; struct frentry *f_acctin[2]; struct frentry *f_acctout[2]; + struct frentry *f_fin6[2]; + struct frentry *f_fout6[2]; + struct frentry *f_acctin6[2]; + struct frentry *f_acctout6[2]; struct frentry *f_auth; + struct frgroup *f_groups[3][2]; u_long f_froute[2]; - int f_active; + int f_defpass; /* default pass - from fr_pass */ + char f_active; /* 1 or 0 - active rule set */ + char f_running; /* 1 if running, else 0 */ + char f_logging; /* 1 if enabled, else 0 */ + char f_version[32]; /* version string */ + int f_locks[4]; } friostat_t; typedef struct optlist { @@ -292,7 +380,7 @@ typedef struct optlist { * Group list structure. */ typedef struct frgroup { - u_short fg_num; + u_32_t fg_num; struct frgroup *fg_next; struct frentry *fg_head; struct frentry **fg_start; @@ -305,11 +393,10 @@ typedef struct frgroup { * structure which is then followed by any packet data. */ typedef struct iplog { - u_long ipl_magic; + u_32_t ipl_magic; + u_int ipl_count; u_long ipl_sec; u_long ipl_usec; - u_int ipl_len; - u_int ipl_count; size_t ipl_dsize; struct iplog *ipl_next; } iplog_t; @@ -326,21 +413,23 @@ typedef struct ipflog { #endif u_char fl_plen; /* extra data after hlen */ u_char fl_hlen; /* length of IP headers saved */ - u_short fl_rule; /* assume never more than 64k rules, total */ - u_short fl_group; + u_short fl_loglevel; /* syslog log level */ + u_32_t fl_rule; + u_32_t fl_group; u_32_t fl_flags; + u_32_t fl_lflags; } ipflog_t; #ifndef ICMP_UNREACH_FILTER -#define ICMP_UNREACH_FILTER 13 +# define ICMP_UNREACH_FILTER 13 #endif #ifndef IPF_LOGGING -#define IPF_LOGGING 0 +# define IPF_LOGGING 0 #endif #ifndef IPF_DEFAULT_PASS -#define IPF_DEFAULT_PASS FR_PASS +# define IPF_DEFAULT_PASS FR_PASS #endif #define IPMINLEN(i, h) ((i)->ip_len >= ((i)->ip_hl * 4 + sizeof(struct h))) @@ -372,16 +461,32 @@ typedef struct ipflog { # define CDEV_MAJOR 79 #endif +/* + * Post NetBSD 1.2 has the PFIL interface for packet filters. This turns + * on those hooks. We don't need any special mods in non-IP Filter code + * with this! + */ +#if (defined(NetBSD) && (NetBSD > 199609) && (NetBSD <= 1991011)) || \ + (defined(NetBSD1_2) && NetBSD1_2 > 1) +# if (NetBSD >= 199905) +# define PFIL_HOOKS +# endif +# ifdef PFIL_HOOKS +# define NETBSD_PF +# endif +#endif + + #ifndef _KERNEL extern int fr_check __P((ip_t *, int, void *, int, mb_t **)); extern int (*fr_checkp) __P((ip_t *, int, void *, int, mb_t **)); extern int send_reset __P((ip_t *, struct ifnet *)); extern int icmp_error __P((ip_t *, struct ifnet *)); extern int ipf_log __P((void)); -extern void ipfr_fastroute __P((ip_t *, fr_info_t *, frdest_t *)); -extern struct ifnet *get_unit __P((char *)); -# define FR_SCANLIST(p, ip, fi, m) fr_scanlist(p, ip, fi, m) -# if defined(__NetBSD__) || defined(__OpenBSD__) || (_BSDI_VERSION >= 199701) +extern int ipfr_fastroute __P((ip_t *, fr_info_t *, frdest_t *)); +extern struct ifnet *get_unit __P((char *, int)); +# if defined(__NetBSD__) || defined(__OpenBSD__) || \ + (_BSDI_VERSION >= 199701) || (__FreeBSD_version >= 300000) extern int iplioctl __P((dev_t, u_long, caddr_t, int)); # else extern int iplioctl __P((dev_t, int, caddr_t, int)); @@ -390,45 +495,43 @@ extern int iplopen __P((dev_t, int)); extern int iplclose __P((dev_t, int)); #else /* #ifndef _KERNEL */ # if defined(__NetBSD__) && defined(PFIL_HOOKS) -extern int ipfilterattach __P((int)); +extern void ipfilterattach __P((int)); # endif extern int iplattach __P((void)); extern int ipl_enable __P((void)); extern int ipl_disable __P((void)); extern void ipflog_init __P((void)); -extern int ipflog_clear __P((int)); -extern int ipflog_read __P((int, struct uio *)); +extern int ipflog_clear __P((minor_t)); +extern int ipflog_read __P((minor_t, struct uio *)); extern int ipflog __P((u_int, ip_t *, fr_info_t *, mb_t *)); -extern int ipllog __P((int, u_long, void **, size_t *, int *, int)); +extern int ipllog __P((int, fr_info_t *, void **, size_t *, int *, int)); +extern int send_icmp_err __P((ip_t *, int, fr_info_t *, int)); +extern int send_reset __P((ip_t *, fr_info_t *)); # if SOLARIS extern int fr_check __P((ip_t *, int, void *, int, qif_t *, mb_t **)); extern int (*fr_checkp) __P((ip_t *, int, void *, int, qif_t *, mb_t **)); -extern int icmp_error __P((ip_t *, int, int, qif_t *, - struct in_addr)); -extern int iplioctl __P((dev_t, int, int, int, cred_t *, int *)); +# if SOLARIS2 >= 7 +extern int iplioctl __P((dev_t, int, intptr_t, int, cred_t *, int *)); +# else +extern int iplioctl __P((dev_t, int, int *, int, cred_t *, int *)); +# endif extern int iplopen __P((dev_t *, int, int, cred_t *)); extern int iplclose __P((dev_t, int, int, cred_t *)); extern int ipfsync __P((void)); -extern int send_reset __P((ip_t *, qif_t *)); extern int ipfr_fastroute __P((qif_t *, ip_t *, mblk_t *, mblk_t **, fr_info_t *, frdest_t *)); -extern void copyin_mblk __P((mblk_t *, int, int, char *)); -extern void copyout_mblk __P((mblk_t *, int, int, char *)); +extern void copyin_mblk __P((mblk_t *, size_t, size_t, char *)); +extern void copyout_mblk __P((mblk_t *, size_t, size_t, char *)); extern int fr_qin __P((queue_t *, mblk_t *)); extern int fr_qout __P((queue_t *, mblk_t *)); -# ifdef IPFILTER_LOG extern int iplread __P((dev_t, struct uio *, cred_t *)); -# endif # else /* SOLARIS */ extern int fr_check __P((ip_t *, int, void *, int, mb_t **)); extern int (*fr_checkp) __P((ip_t *, int, void *, int, mb_t **)); -# ifdef linux -extern int send_reset __P((tcpiphdr_t *, struct ifnet *)); -# else -extern int send_reset __P((tcpiphdr_t *)); -# endif -extern void ipfr_fastroute __P((mb_t *, fr_info_t *, frdest_t *)); +extern int send_reset __P((struct ip *, fr_info_t *)); +extern int send_icmp_err __P((ip_t *, int, fr_info_t *, int)); +extern int ipfr_fastroute __P((mb_t *, fr_info_t *, frdest_t *)); extern size_t mbufchainlen __P((mb_t *)); # ifdef __sgi # include <sys/cred.h> @@ -445,8 +548,9 @@ extern void ipfilter_sgi_intfsync __P((void)); extern int iplidentify __P((char *)); # endif # if (_BSDI_VERSION >= 199510) || (__FreeBSD_version >= 220000) || \ - (NetBSD >= 199511) -# if defined(__NetBSD__) || (_BSDI_VERSION >= 199701) + (NetBSD >= 199511) || defined(__OpenBSD__) +# if defined(__NetBSD__) || (_BSDI_VERSION >= 199701) || \ + defined(__OpenBSD__) || (__FreeBSD_version >= 300000) extern int iplioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); # else extern int iplioctl __P((dev_t, int, caddr_t, int, struct proc *)); @@ -454,19 +558,12 @@ extern int iplioctl __P((dev_t, int, caddr_t, int, struct proc *)); extern int iplopen __P((dev_t, int, int, struct proc *)); extern int iplclose __P((dev_t, int, int, struct proc *)); # else -# if defined(__OpenBSD__) -extern int iplioctl __P((dev_t, u_long, caddr_t, int)); -# else /* __OpenBSD__ */ -# ifndef linux -extern int iplioctl __P((dev_t, int, caddr_t, int)); -# else -extern int iplioctl(struct inode *, struct file *, u_int, u_long); -# endif -# endif /* __OpenBSD__ */ -# ifndef linux +# ifndef linux extern int iplopen __P((dev_t, int)); extern int iplclose __P((dev_t, int)); +extern int iplioctl __P((dev_t, int, caddr_t, int)); # else +extern int iplioctl(struct inode *, struct file *, u_int, u_long); extern int iplopen __P((struct inode *, struct file *)); extern void iplclose __P((struct inode *, struct file *)); # endif /* !linux */ @@ -484,38 +581,49 @@ extern int iplread(struct inode *, struct file *, char *, int); # endif /* SOLARIS */ #endif /* #ifndef _KERNEL */ -/* - * Post NetBSD 1.2 has the PFIL interface for packet filters. This turns - * on those hooks. We don't need any special mods in non-IP Filter code - * with this! - */ -#if (defined(NetBSD) && (NetBSD > 199609) && (NetBSD <= 1991011)) || \ - (defined(NetBSD1_2) && NetBSD1_2 > 1) -# define NETBSD_PF -#endif - +extern char *memstr __P((char *, char *, int, int)); +extern void fixskip __P((frentry_t **, frentry_t *, int)); +extern int countbits __P((u_32_t)); extern int ipldetach __P((void)); -extern u_short fr_tcpsum __P((mb_t *, ip_t *, tcphdr_t *, int)); -#define FR_SCANLIST(p, ip, fi, m) fr_scanlist(p, ip, fi, m) -extern int fr_scanlist __P((int, ip_t *, fr_info_t *, void *)); extern u_short ipf_cksum __P((u_short *, int)); +extern int ircopyptr __P((void *, void *, size_t)); +extern int iwcopyptr __P((void *, void *, size_t)); + +extern int frflush __P((minor_t, int)); +extern void frsync __P((void)); +extern frgroup_t *fr_addgroup __P((u_32_t, frentry_t *, minor_t, int)); +extern void fr_delgroup __P((u_32_t, u_32_t, minor_t, int)); +extern frgroup_t *fr_findgroup __P((u_32_t, u_32_t, minor_t, int, + frgroup_t ***)); + extern int fr_copytolog __P((int, char *, int)); -extern void frflush __P((int, int *)); -extern frgroup_t *fr_addgroup __P((u_short, frentry_t *, int, int)); -extern frgroup_t *fr_findgroup __P((u_short, u_32_t, int, int, frgroup_t ***)); -extern void fr_delgroup __P((u_short, u_32_t, int, int)); +extern void fr_forgetifp __P((void *)); +extern void fr_getstat __P((struct friostat *)); +extern int fr_ifpaddr __P((int, void *, struct in_addr *)); +extern int fr_lock __P((caddr_t, int *)); +extern void fr_makefrip __P((int, ip_t *, fr_info_t *)); +extern u_short fr_tcpsum __P((mb_t *, ip_t *, tcphdr_t *)); +extern int fr_scanlist __P((u_32_t, ip_t *, fr_info_t *, void *)); +extern int fr_tcpudpchk __P((frtuc_t *, fr_info_t *)); +extern int fr_verifysrc __P((struct in_addr, void *)); + extern int ipl_unreach; -extern int ipl_inited; +extern int fr_running; extern u_long ipl_frouteok[2]; extern int fr_pass; extern int fr_flags; extern int fr_active; +extern int fr_chksrc; extern fr_info_t frcache[2]; -#ifdef IPFILTER_LOG +extern char ipfilter_version[]; extern iplog_t **iplh[IPL_LOGMAX+1], *iplt[IPL_LOGMAX+1]; -extern int iplused[IPL_LOGMAX + 1]; -#endif +extern size_t iplused[IPL_LOGMAX + 1]; extern struct frentry *ipfilter[2][2], *ipacct[2][2]; +#ifdef USE_INET6 +extern struct frentry *ipfilter6[2][2], *ipacct6[2][2]; +extern int icmptoicmp6types[ICMP_MAXTYPE+1]; +extern int icmptoicmp6unreach[ICMP_MAX_UNREACH]; +#endif extern struct frgroup *ipfgroups[3][2]; extern struct filterstats frstats[]; |
