| #ifndef _IPTABLES_USER_H |
| #define _IPTABLES_USER_H |
| |
| #include "libiptc/libiptc.h" |
| |
| /* Include file for additions: new matches and targets. */ |
| struct iptables_match |
| { |
| struct iptables_match *next; |
| |
| ipt_chainlabel name; |
| |
| const char *version; |
| |
| /* Size of match data. */ |
| size_t size; |
| |
| /* Function which prints out usage message. */ |
| void (*help)(void); |
| |
| /* Initialize the match. */ |
| void (*init)(struct ipt_entry_match *m, unsigned int *nfcache); |
| |
| /* Function which parses command options; returns true if it |
| ate an option */ |
| int (*parse)(int c, char **argv, int invert, unsigned int *flags, |
| const struct ipt_entry *entry, |
| unsigned int *nfcache, |
| struct ipt_entry_match **match); |
| |
| /* Final check; exit if not ok. */ |
| void (*final_check)(unsigned int flags); |
| |
| /* Prints out the match iff non-NULL: put space at end */ |
| void (*print)(const struct ipt_ip *ip, |
| const struct ipt_entry_match *match, int numeric); |
| |
| /* Saves the union ipt_matchinfo in parsable form to stdout. */ |
| void (*save)(const struct ipt_ip *ip, |
| const struct ipt_entry_match *match); |
| |
| /* Pointer to list of extra command-line options */ |
| struct option *extra_opts; |
| |
| /* Ignore these men behind the curtain: */ |
| unsigned int option_offset; |
| struct ipt_entry_match *m; |
| unsigned int mflags; |
| }; |
| |
| struct iptables_target |
| { |
| struct iptables_target *next; |
| |
| ipt_chainlabel name; |
| |
| const char *version; |
| |
| /* Size of target data. */ |
| size_t size; |
| |
| /* Function which prints out usage message. */ |
| void (*help)(void); |
| |
| /* Initialize the target. */ |
| void (*init)(struct ipt_entry_target *t, unsigned int *nfcache); |
| |
| /* Function which parses command options; returns true if it |
| ate an option */ |
| int (*parse)(int c, char **argv, int invert, unsigned int *flags, |
| const struct ipt_entry *entry, |
| struct ipt_entry_target **target); |
| |
| /* Final check; exit if not ok. */ |
| void (*final_check)(unsigned int flags); |
| |
| /* Prints out the target iff non-NULL: put space at end */ |
| void (*print)(const struct ipt_ip *ip, |
| const struct ipt_entry_target *target, int numeric); |
| |
| /* Saves the targinfo in parsable form to stdout. */ |
| void (*save)(const struct ipt_ip *ip, |
| const struct ipt_entry_target *target); |
| |
| /* Pointer to list of extra command-line options */ |
| struct option *extra_opts; |
| |
| /* Ignore these men behind the curtain: */ |
| unsigned int option_offset; |
| struct ipt_entry_target *t; |
| unsigned int tflags; |
| }; |
| |
| /* Your shared library should call one of these. */ |
| extern void register_match(struct iptables_match *me); |
| extern void register_target(struct iptables_target *me); |
| |
| /* Functions we share */ |
| enum exittype { |
| OTHER_PROBLEM = 1, |
| PARAMETER_PROBLEM, |
| VERSION_PROBLEM |
| }; |
| extern void exit_printhelp() __attribute__((noreturn)); |
| extern void exit_tryhelp(int) __attribute__((noreturn)); |
| int check_inverse(const char option[], int *invert); |
| extern int string_to_number(const char *, int, int); |
| void exit_error(enum exittype, char *, ...)__attribute__((noreturn, |
| format(printf,2,3))); |
| extern char *addr_to_dotted(const struct in_addr *addrp); |
| struct in_addr *dotted_to_addr(const char *dotted); |
| extern const char *program_name, *program_version; |
| |
| extern int do_command(int argc, char *argv[], char **table, |
| iptc_handle_t *handle); |
| /* Keeping track of external matches and targets: linked lists. */ |
| extern struct iptables_match *iptables_matches; |
| extern struct iptables_target *iptables_targets; |
| |
| extern struct iptables_target *find_target(const char *name, int tryload); |
| extern struct iptables_match *find_match(const char *name, int tryload); |
| #endif /*_IPTABLES_USER_H*/ |