1 /* 2 * Copyright (C) 2012 by Darren Reed. 3 * 4 * See the IPFILTER.LICENCE file for details on licencing. 5 * $Id$ 6 */ 7 8 #ifndef __IP_SCAN_H__ 9 #define __IP_SCAN_H__ 1 10 11 #ifdef sun 12 # include <sys/ioccom.h> 13 #endif 14 15 #define IPSCAN_NAME "/dev/ipscan" 16 #define IPL_SCAN IPSCAN_NAME 17 #define ISC_TLEN 16 18 19 20 struct fr_info; 21 struct frentry; 22 struct ip; 23 struct ipstate; 24 25 26 # define SIOCADSCA _IOWR('r', 60, struct ipscan *) 27 # define SIOCRMSCA _IOWR('r', 61, struct ipscan *) 28 # define SIOCGSCST _IOWR('r', 62, struct ipscan *) 29 30 struct action { 31 int act_val; /* what to do */ 32 struct in_addr act_ip; /* redirect IP# */ 33 u_short act_port; /* redirect port number */ 34 int act_else; /* what to do */ 35 struct in_addr act_eip; /* redirect IP# */ 36 u_short act_eport; /* redirect port number */ 37 }; 38 39 40 typedef struct sinfo { 41 char s_txt[ISC_TLEN]; /* text to match */ 42 char s_msk[ISC_TLEN]; /* mask of the above to check */ 43 int s_len; /* length of server text */ 44 } sinfo_t; 45 46 47 typedef struct ipscan { 48 struct ipscan *ipsc_next; 49 struct ipscan **ipsc_pnext; 50 char ipsc_tag[ISC_TLEN]; /* table entry protocol tag */ 51 sinfo_t ipsc_si[2]; /* client/server side information */ 52 int ipsc_hits; /* times this has been matched */ 53 int ipsc_active; /* # of active matches */ 54 int ipsc_fref; /* # of references from filter rules */ 55 int ipsc_sref; /* # of references from state entries */ 56 struct action ipsc_act; 57 } ipscan_t; 58 59 60 #define ipsc_cl ipsc_si[0] 61 #define ipsc_sl ipsc_si[1] 62 #define ipsc_ctxt ipsc_cl.s_txt 63 #define ipsc_cmsk ipsc_cl.s_msk 64 #define ipsc_clen ipsc_cl.s_len 65 #define ipsc_stxt ipsc_sl.s_txt 66 #define ipsc_smsk ipsc_sl.s_msk 67 #define ipsc_slen ipsc_sl.s_len 68 #define ipsc_action ipsc_act.act_val 69 #define ipsc_ip ipsc_act.act_ip 70 #define ipsc_port ipsc_act.act_port 71 #define ipsc_else ipsc_act.act_else 72 #define ipsc_eip ipsc_act.act_eip 73 #define ipsc_eport ipsc_act.act_eport 74 75 #define ISC_A_NONE 0 76 #define ISC_A_TRACK 1 77 #define ISC_A_CLOSE 2 78 #define ISC_A_REDIRECT 3 79 80 81 typedef struct ipscanstat { 82 struct ipscan *iscs_list; 83 u_long iscs_acted; 84 u_long iscs_else; 85 int iscs_entries; 86 } ipscanstat_t; 87 88 89 extern int ipf_scan_ioctl(ipf_main_softc_t *, caddr_t, ioctlcmd_t, int, int, void *); 90 extern int ipf_scan_init(void); 91 extern int ipf_scan_attachis(struct ipstate *); 92 extern int ipf_scan_attachfr(struct frentry *); 93 extern int ipf_scan_detachis(struct ipstate *); 94 extern int ipf_scan_detachfr(struct frentry *); 95 extern int ipf_scan_packet(struct fr_info *, struct ipstate *); 96 extern void ipf_scan_unload(ipf_main_softc_t *); 97 98 #endif /* __IP_SCAN_H__ */ 99