diff options
Diffstat (limited to 'sys/contrib/ipfilter/netinet/ip_state.h')
| -rw-r--r-- | sys/contrib/ipfilter/netinet/ip_state.h | 199 |
1 files changed, 124 insertions, 75 deletions
diff --git a/sys/contrib/ipfilter/netinet/ip_state.h b/sys/contrib/ipfilter/netinet/ip_state.h index 73d699f..5e3fe87 100644 --- a/sys/contrib/ipfilter/netinet/ip_state.h +++ b/sys/contrib/ipfilter/netinet/ip_state.h @@ -1,21 +1,25 @@ +/* $FreeBSD$ */ + /* * Copyright (C) 1995-2001 by Darren Reed. * * See the IPFILTER.LICENCE file for details on licencing. * * @(#)ip_state.h 1.3 1/12/96 (C) 1995 Darren Reed - * $Id: ip_state.h,v 2.13.2.1 2000/07/08 02:15:35 darrenr Exp $ * $FreeBSD$ + * Id: ip_state.h,v 2.68.2.3 2005/03/03 14:24:11 darrenr Exp */ #ifndef __IP_STATE_H__ #define __IP_STATE_H__ #if defined(__STDC__) || defined(__GNUC__) -# define SIOCDELST _IOW('r', 61, struct ipstate *) +# define SIOCDELST _IOW('r', 61, struct ipfobj) #else -# define SIOCDELST _IOW(r, 61, struct ipstate *) +# define SIOCDELST _IOW(r, 61, struct ipfobj) #endif +struct ipscan; + #ifndef IPSTATE_SIZE # define IPSTATE_SIZE 5737 #endif @@ -29,54 +33,34 @@ (s2).s_addr, (d2).s_addr) -typedef struct udpstate { - u_short us_sport; - u_short us_dport; -} udpstate_t; - -typedef struct icmpstate { - u_short ics_id; - u_short ics_seq; - u_char ics_type; -} icmpstate_t; - -typedef struct tcpdata { - u_32_t td_end; - u_32_t td_maxend; - u_32_t td_maxwin; - u_char td_wscale; -} tcpdata_t; - -typedef struct tcpstate { - u_short ts_sport; - u_short ts_dport; - tcpdata_t ts_data[2]; - u_char ts_state[2]; -} tcpstate_t; - typedef struct ipstate { + ipfmutex_t is_lock; struct ipstate *is_next; struct ipstate **is_pnext; struct ipstate *is_hnext; struct ipstate **is_phnext; struct ipstate **is_me; + void *is_ifp[4]; + void *is_sync; + struct nat *is_nat[2]; frentry_t *is_rule; - U_QUAD_T is_pkts; - U_QUAD_T is_bytes; - U_QUAD_T is_icmppkts; - union i6addr is_src; - union i6addr is_dst; - void *is_ifp[4]; - u_long is_age; - u_int is_frage[2]; /* age from filter rule, forward & reverse */ + struct ipftq *is_tqehead[2]; + struct ipscan *is_isc; + U_QUAD_T is_pkts[4]; + U_QUAD_T is_bytes[4]; + U_QUAD_T is_icmppkts[4]; + struct ipftqent is_sti; + u_int is_frage[2]; + int is_ref; /* reference count */ + int is_isninc[2]; + u_short is_sumd[2]; + i6addr_t is_src; + i6addr_t is_dst; u_int is_pass; u_char is_p; /* Protocol */ - u_char is_v; /* IP version */ - u_char is_fsm; /* 1 = following FSM, 0 = not */ - u_char is_xxx; /* pad */ - u_int is_hv; /* hash value for this in the table */ - u_32_t is_rulen; /* rule number */ - u_32_t is_flags; /* flags for this structure */ + u_char is_v; + u_32_t is_hv; + u_32_t is_tag; u_32_t is_opt; /* packet options set */ u_32_t is_optmsk; /* " " mask */ u_short is_sec; /* security options set */ @@ -84,37 +68,74 @@ typedef struct ipstate { u_short is_auth; /* authentication options set */ u_short is_authmsk; /* " " mask */ union { - icmpstate_t is_ics; - tcpstate_t is_ts; - udpstate_t is_us; + icmpinfo_t is_ics; + tcpinfo_t is_ts; + udpinfo_t is_us; + greinfo_t is_ug; } is_ps; - u_32_t is_group; - char is_ifname[4][IFNAMSIZ]; -#if SOLARIS || defined(__sgi) || (__FreeBSD_version >= 500043) - kmutex_t is_lock; -#endif + u_32_t is_flags; + int is_flx[2][2]; + u_32_t is_rulen; /* rule number when created */ + u_32_t is_s0[2]; + u_short is_smsk[2]; + char is_group[FR_GROUPLEN]; + char is_sbuf[2][16]; + char is_ifname[4][LIFNAMSIZ]; } ipstate_t; +#define is_die is_sti.tqe_die +#define is_state is_sti.tqe_state +#define is_touched is_sti.tqe_touched #define is_saddr is_src.in4.s_addr #define is_daddr is_dst.in4.s_addr #define is_icmp is_ps.is_ics -#define is_type is_icmp.ics_type -#define is_code is_icmp.ics_code +#define is_type is_icmp.ici_type +#define is_code is_icmp.ici_code #define is_tcp is_ps.is_ts #define is_udp is_ps.is_us #define is_send is_tcp.ts_data[0].td_end #define is_dend is_tcp.ts_data[1].td_end #define is_maxswin is_tcp.ts_data[0].td_maxwin #define is_maxdwin is_tcp.ts_data[1].td_maxwin -#define is_swscale is_tcp.ts_data[0].td_wscale -#define is_dwscale is_tcp.ts_data[1].td_wscale #define is_maxsend is_tcp.ts_data[0].td_maxend #define is_maxdend is_tcp.ts_data[1].td_maxend +#define is_swinscale is_tcp.ts_data[0].td_winscale +#define is_dwinscale is_tcp.ts_data[1].td_winscale +#define is_swinflags is_tcp.ts_data[0].td_winflags +#define is_dwinflags is_tcp.ts_data[1].td_winflags #define is_sport is_tcp.ts_sport #define is_dport is_tcp.ts_dport -#define is_state is_tcp.ts_state #define is_ifpin is_ifp[0] #define is_ifpout is_ifp[2] +#define is_gre is_ps.is_ug +#define is_call is_gre.gs_call + +#define IS_WSPORT SI_W_SPORT /* 0x00100 */ +#define IS_WDPORT SI_W_DPORT /* 0x00200 */ +#define IS_WSADDR SI_W_SADDR /* 0x00400 */ +#define IS_WDADDR SI_W_DADDR /* 0x00800 */ +#define IS_NEWFR SI_NEWFR /* 0x01000 */ +#define IS_CLONE SI_CLONE /* 0x02000 */ +#define IS_CLONED SI_CLONED /* 0x04000 */ +#define IS_TCPFSM 0x10000 +#define IS_STRICT 0x20000 +#define IS_ISNSYN 0x40000 +#define IS_ISNACK 0x80000 +#define IS_STATESYNC 0x100000 +/* + * IS_SC flags are for scan-operations that need to be recognised in state. + */ +#define IS_SC_CLIENT 0x10000000 +#define IS_SC_SERVER 0x20000000 +#define IS_SC_MATCHC 0x40000000 +#define IS_SC_MATCHS 0x80000000 +#define IS_SC_MATCHALL (IS_SC_MATCHC|IS_SC_MATCHC) +#define IS_SC_ALL (IS_SC_MATCHC|IS_SC_MATCHC|IS_SC_CLIENT|IS_SC_SERVER) + +/* + * Flags that can be passed into fr_addstate + */ +#define IS_INHERITED 0x0fffff00 #define TH_OPENING (TH_SYN|TH_ACK) /* @@ -124,6 +145,8 @@ typedef struct ipstate { * Bits 4 - 7 are set from the initial packet and contain what the packet * anded with bits 0-3 must match. * Bits 8,9 are used to indicate wildcard source/destination port matching. + * Bits 10,11 are reserved for other wildcard flag compatibility. + * Bits 12,13 are for scaning. */ typedef struct ipstate_save { @@ -136,10 +159,11 @@ typedef struct ipstate_save { typedef struct ipslog { - U_QUAD_T isl_pkts; - U_QUAD_T isl_bytes; - union i6addr isl_src; - union i6addr isl_dst; + U_QUAD_T isl_pkts[4]; + U_QUAD_T isl_bytes[4]; + i6addr_t isl_src; + i6addr_t isl_dst; + u_32_t isl_tag; u_short isl_type; union { u_short isl_filler[2]; @@ -151,23 +175,28 @@ typedef struct ipslog { u_char isl_flags; u_char isl_state[2]; u_32_t isl_rulen; - u_32_t isl_group; + char isl_group[FR_GROUPLEN]; } ipslog_t; #define isl_sport isl_ps.isl_ports[0] #define isl_dport isl_ps.isl_ports[1] #define isl_itype isl_ps.isl_icmp -#define ISL_NEW 0 -#define ISL_EXPIRE 0xffff -#define ISL_FLUSH 0xfffe -#define ISL_REMOVE 0xfffd +#define ISL_NEW 0 +#define ISL_CLONE 1 +#define ISL_EXPIRE 0xffff +#define ISL_FLUSH 0xfffe +#define ISL_REMOVE 0xfffd +#define ISL_INTERMEDIATE 0xfffc +#define ISL_KILLED 0xfffb +#define ISL_ORPHAN 0xfffa typedef struct ips_stat { u_long iss_hits; u_long iss_miss; u_long iss_max; + u_long iss_maxref; u_long iss_tcp; u_long iss_udp; u_long iss_icmp; @@ -178,8 +207,15 @@ typedef struct ips_stat { u_long iss_logged; u_long iss_logfail; u_long iss_inuse; + u_long iss_wild; + u_long iss_killed; + u_long iss_ticks; + u_long iss_bucketfull; + int iss_statesize; + int iss_statemax; ipstate_t **iss_table; ipstate_t *iss_list; + u_long *iss_bucketlen; } ips_stat_t; @@ -193,21 +229,34 @@ extern u_long fr_udptimeout; extern u_long fr_udpacktimeout; extern u_long fr_icmptimeout; extern u_long fr_icmpacktimeout; -extern ipstate_t *ips_list; +extern u_long fr_iptimeout; +extern int fr_statemax; +extern int fr_statesize; extern int fr_state_lock; +extern int fr_state_maxbucket; +extern int fr_state_maxbucket_reset; +extern ipstate_t *ips_list; +extern ipftq_t *ips_utqe; +extern ipftq_t ips_tqtqb[IPF_TCP_NSTATES]; + extern int fr_stateinit __P((void)); -extern int fr_tcpstate __P((ipstate_t *, fr_info_t *, ip_t *, tcphdr_t *)); -extern ipstate_t *fr_addstate __P((ip_t *, fr_info_t *, ipstate_t **, u_int)); -extern frentry_t *fr_checkstate __P((ip_t *, fr_info_t *)); -extern void ip_statesync __P((void *)); +extern ipstate_t *fr_addstate __P((fr_info_t *, ipstate_t **, u_int)); +extern frentry_t *fr_checkstate __P((struct fr_info *, u_32_t *)); +extern ipstate_t *fr_stlookup __P((fr_info_t *, tcphdr_t *, ipftq_t **)); +extern void fr_statesync __P((void *)); extern void fr_timeoutstate __P((void)); -extern int fr_tcp_age __P((u_long *, u_char *, fr_info_t *, int, int)); +extern int fr_tcp_age __P((struct ipftqent *, struct fr_info *, + struct ipftq *, int)); +extern int fr_tcpinwindow __P((struct fr_info *, struct tcpdata *, + struct tcpdata *, tcphdr_t *, int)); extern void fr_stateunload __P((void)); extern void ipstate_log __P((struct ipstate *, u_int)); -#if defined(__NetBSD__) || defined(__OpenBSD__) -extern int fr_state_ioctl __P((caddr_t, u_long, int)); -#else -extern int fr_state_ioctl __P((caddr_t, int, int)); -#endif +extern int fr_state_ioctl __P((caddr_t, ioctlcmd_t, int)); +extern void fr_stinsert __P((struct ipstate *, int)); +extern void fr_sttab_init __P((struct ipftq *)); +extern void fr_sttab_destroy __P((struct ipftq *)); +extern void fr_updatestate __P((fr_info_t *, ipstate_t *, ipftq_t *)); +extern void fr_statederef __P((fr_info_t *, ipstate_t **)); +extern void fr_setstatequeue __P((ipstate_t *, int)); #endif /* __IP_STATE_H__ */ |
