/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 * $Id$
 */

typedef struct ipmon_msg_s {
        int     imm_msglen;
        char    *imm_msg;
        int     imm_dsize;
        void    *imm_data;
        time_t  imm_when;
        int     imm_loglevel;
} ipmon_msg_t;

typedef void    (*ims_destroy_func_t)(void *);
typedef void    *(*ims_dup_func_t)(void *);
typedef int     (*ims_match_func_t)(void *, void *);
typedef void    *(*ims_parse_func_t)(char **);
typedef void    (*ims_print_func_t)(void *);
typedef int     (*ims_store_func_t)(void *, ipmon_msg_t *);

typedef struct ipmon_saver_s {
        char                    *ims_name;
        ims_destroy_func_t      ims_destroy;
        ims_dup_func_t          ims_dup;
        ims_match_func_t        ims_match;
        ims_parse_func_t        ims_parse;
        ims_print_func_t        ims_print;
        ims_store_func_t        ims_store;
} ipmon_saver_t;

typedef struct  ipmon_saver_int_s {
        struct ipmon_saver_int_s        *imsi_next;
        ipmon_saver_t                   *imsi_stor;
        void                            *imsi_handle;
} ipmon_saver_int_t;

typedef struct  ipmon_doing_s {
        struct ipmon_doing_s    *ipmd_next;
        void                    *ipmd_token;
        ipmon_saver_t           *ipmd_saver;
        /*
         * ipmd_store is "cached" in this structure to avoid a double
         * deref when doing saves....
         */
        int                     (*ipmd_store)(void *, ipmon_msg_t *);
} ipmon_doing_t;


typedef struct  ipmon_action {
        struct  ipmon_action    *ac_next;
        int     ac_mflag;       /* collection of things to compare */
        int     ac_dflag;       /* flags to compliment the doing fields */
        int     ac_logpri;
        int     ac_direction;
        char    ac_group[FR_GROUPLEN];
        char    ac_nattag[16];
        u_32_t  ac_logtag;
        int     ac_type;        /* nat/state/ipf */
        int     ac_proto;
        int     ac_rule;
        int     ac_packet;
        int     ac_second;
        int     ac_result;
        u_32_t  ac_sip;
        u_32_t  ac_smsk;
        u_32_t  ac_dip;
        u_32_t  ac_dmsk;
        u_short ac_sport;
        u_short ac_dport;
        char    *ac_iface;
        /*
         * used with ac_packet/ac_second
         */
        struct  timeval ac_last;
        int     ac_pktcnt;
        /*
         * What to do with matches
         */
        ipmon_doing_t   *ac_doing;
} ipmon_action_t;

#define ac_lastsec      ac_last.tv_sec
#define ac_lastusec     ac_last.tv_usec

/*
 * Flags indicating what fields to do matching upon (ac_mflag).
 */
#define IPMAC_DIRECTION 0x0001
#define IPMAC_DSTIP     0x0002
#define IPMAC_DSTPORT   0x0004
#define IPMAC_EVERY     0x0008
#define IPMAC_GROUP     0x0010
#define IPMAC_INTERFACE 0x0020
#define IPMAC_LOGTAG    0x0040
#define IPMAC_NATTAG    0x0080
#define IPMAC_PROTOCOL  0x0100
#define IPMAC_RESULT    0x0200
#define IPMAC_RULE      0x0400
#define IPMAC_SRCIP     0x0800
#define IPMAC_SRCPORT   0x1000
#define IPMAC_TYPE      0x2000
#define IPMAC_WITH      0x4000

#define IPMR_BLOCK      1
#define IPMR_PASS       2
#define IPMR_NOMATCH    3
#define IPMR_LOG        4

#define IPMON_SYSLOG    0x001
#define IPMON_RESOLVE   0x002
#define IPMON_HEXBODY   0x004
#define IPMON_HEXHDR    0x010
#define IPMON_TAIL      0x020
#define IPMON_VERBOSE   0x040
#define IPMON_NAT       0x080
#define IPMON_STATE     0x100
#define IPMON_FILTER    0x200
#define IPMON_PORTNUM   0x400
#define IPMON_LOGALL    (IPMON_NAT|IPMON_STATE|IPMON_FILTER)
#define IPMON_LOGBODY   0x800

#define HOSTNAME_V4(a,b)        hostname((a), 4, (u_32_t *)&(b))

#ifndef LOGFAC
#define LOGFAC  LOG_LOCAL0
#endif

extern  void    dump_config(void);
extern  int     load_config(char *);
extern  void    unload_config(void);
extern  void    dumphex(FILE *, int, char *, int);
extern  int     check_action(char *, char *, int, int);
extern  char    *getword(int);
extern  void    *add_doing(ipmon_saver_t *);