| Marc Boucher | e6869a8 | 2000-03-20 06:03:29 +0000 | [diff] [blame^] | 1 | #ifndef _IPTABLES_USER_H |
| 2 | #define _IPTABLES_USER_H |
| 3 | |
| 4 | #include "libiptc/libiptc.h" |
| 5 | |
| 6 | /* Include file for additions: new matches and targets. */ |
| 7 | struct iptables_match |
| 8 | { |
| 9 | struct iptables_match *next; |
| 10 | |
| 11 | ipt_chainlabel name; |
| 12 | |
| 13 | const char *version; |
| 14 | |
| 15 | /* Size of match data. */ |
| 16 | size_t size; |
| 17 | |
| 18 | /* Function which prints out usage message. */ |
| 19 | void (*help)(void); |
| 20 | |
| 21 | /* Initialize the match. */ |
| 22 | void (*init)(struct ipt_entry_match *m, unsigned int *nfcache); |
| 23 | |
| 24 | /* Function which parses command options; returns true if it |
| 25 | ate an option */ |
| 26 | int (*parse)(int c, char **argv, int invert, unsigned int *flags, |
| 27 | const struct ipt_entry *entry, |
| 28 | unsigned int *nfcache, |
| 29 | struct ipt_entry_match **match); |
| 30 | |
| 31 | /* Final check; exit if not ok. */ |
| 32 | void (*final_check)(unsigned int flags); |
| 33 | |
| 34 | /* Prints out the match iff non-NULL: put space at end */ |
| 35 | void (*print)(const struct ipt_ip *ip, |
| 36 | const struct ipt_entry_match *match, int numeric); |
| 37 | |
| 38 | /* Saves the union ipt_matchinfo in parsable form to stdout. */ |
| 39 | void (*save)(const struct ipt_ip *ip, |
| 40 | const struct ipt_entry_match *match); |
| 41 | |
| 42 | /* Pointer to list of extra command-line options */ |
| 43 | struct option *extra_opts; |
| 44 | |
| 45 | /* Ignore these men behind the curtain: */ |
| 46 | unsigned int option_offset; |
| 47 | struct ipt_entry_match *m; |
| 48 | unsigned int mflags; |
| 49 | }; |
| 50 | |
| 51 | struct iptables_target |
| 52 | { |
| 53 | struct iptables_target *next; |
| 54 | |
| 55 | ipt_chainlabel name; |
| 56 | |
| 57 | const char *version; |
| 58 | |
| 59 | /* Size of target data. */ |
| 60 | size_t size; |
| 61 | |
| 62 | /* Function which prints out usage message. */ |
| 63 | void (*help)(void); |
| 64 | |
| 65 | /* Initialize the target. */ |
| 66 | void (*init)(struct ipt_entry_target *t, unsigned int *nfcache); |
| 67 | |
| 68 | /* Function which parses command options; returns true if it |
| 69 | ate an option */ |
| 70 | int (*parse)(int c, char **argv, int invert, unsigned int *flags, |
| 71 | const struct ipt_entry *entry, |
| 72 | struct ipt_entry_target **target); |
| 73 | |
| 74 | /* Final check; exit if not ok. */ |
| 75 | void (*final_check)(unsigned int flags); |
| 76 | |
| 77 | /* Prints out the target iff non-NULL: put space at end */ |
| 78 | void (*print)(const struct ipt_ip *ip, |
| 79 | const struct ipt_entry_target *target, int numeric); |
| 80 | |
| 81 | /* Saves the targinfo in parsable form to stdout. */ |
| 82 | void (*save)(const struct ipt_ip *ip, |
| 83 | const struct ipt_entry_target *target); |
| 84 | |
| 85 | /* Pointer to list of extra command-line options */ |
| 86 | struct option *extra_opts; |
| 87 | |
| 88 | /* Ignore these men behind the curtain: */ |
| 89 | unsigned int option_offset; |
| 90 | struct ipt_entry_target *t; |
| 91 | unsigned int tflags; |
| 92 | }; |
| 93 | |
| 94 | /* Your shared library should call one of these. */ |
| 95 | extern void register_match(struct iptables_match *me); |
| 96 | extern void register_target(struct iptables_target *me); |
| 97 | |
| 98 | /* Functions we share */ |
| 99 | enum exittype { |
| 100 | OTHER_PROBLEM = 1, |
| 101 | PARAMETER_PROBLEM, |
| 102 | VERSION_PROBLEM |
| 103 | }; |
| 104 | extern void exit_printhelp() __attribute__((noreturn)); |
| 105 | extern void exit_tryhelp(int) __attribute__((noreturn)); |
| 106 | int check_inverse(const char option[], int *invert); |
| 107 | extern int string_to_number(const char *, int, int); |
| 108 | void exit_error(enum exittype, char *, ...)__attribute__((noreturn, |
| 109 | format(printf,2,3))); |
| 110 | extern char *addr_to_dotted(const struct in_addr *addrp); |
| 111 | struct in_addr *dotted_to_addr(const char *dotted); |
| 112 | extern const char *program_name, *program_version; |
| 113 | |
| 114 | extern int do_command(int argc, char *argv[], char **table, |
| 115 | iptc_handle_t *handle); |
| 116 | /* Keeping track of external matches and targets: linked lists. */ |
| 117 | extern struct iptables_match *iptables_matches; |
| 118 | extern struct iptables_target *iptables_targets; |
| 119 | |
| 120 | extern struct iptables_target *find_target(const char *name, int tryload); |
| 121 | extern struct iptables_match *find_match(const char *name, int tryload); |
| 122 | #endif /*_IPTABLES_USER_H*/ |