diff options
Diffstat (limited to 'include/libiptc')
-rw-r--r-- | include/libiptc/libip6tc.h | 110 | ||||
-rw-r--r-- | include/libiptc/libiptc.h | 110 | ||||
-rw-r--r-- | include/libiptc/xtcshared.h | 20 |
3 files changed, 132 insertions, 108 deletions
diff --git a/include/libiptc/libip6tc.h b/include/libiptc/libip6tc.h index 4f2d1f87..c656bc43 100644 --- a/include/libiptc/libip6tc.h +++ b/include/libiptc/libip6tc.h @@ -10,10 +10,10 @@ # include <limits.h> /* INT_MAX in ip6_tables.h */ #endif #include <linux/netfilter_ipv6/ip6_tables.h> +#include <libiptc/xtcshared.h> -struct ip6tc_handle; - -typedef char ip6t_chainlabel[32]; +#define ip6tc_handle xtc_handle +#define ip6t_chainlabel xt_chainlabel #define IP6TC_LABEL_ACCEPT "ACCEPT" #define IP6TC_LABEL_DROP "DROP" @@ -21,132 +21,132 @@ typedef char ip6t_chainlabel[32]; #define IP6TC_LABEL_RETURN "RETURN" /* Does this chain exist? */ -int ip6tc_is_chain(const char *chain, struct ip6tc_handle *const handle); +int ip6tc_is_chain(const char *chain, struct xtc_handle *const handle); /* Take a snapshot of the rules. Returns NULL on error. */ -struct ip6tc_handle *ip6tc_init(const char *tablename); +struct xtc_handle *ip6tc_init(const char *tablename); /* Cleanup after ip6tc_init(). */ -void ip6tc_free(struct ip6tc_handle *h); +void ip6tc_free(struct xtc_handle *h); /* Iterator functions to run through the chains. Returns NULL at end. */ -const char *ip6tc_first_chain(struct ip6tc_handle *handle); -const char *ip6tc_next_chain(struct ip6tc_handle *handle); +const char *ip6tc_first_chain(struct xtc_handle *handle); +const char *ip6tc_next_chain(struct xtc_handle *handle); /* Get first rule in the given chain: NULL for empty chain. */ const struct ip6t_entry *ip6tc_first_rule(const char *chain, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Returns NULL when rules run out. */ const struct ip6t_entry *ip6tc_next_rule(const struct ip6t_entry *prev, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Returns a pointer to the target name of this position. */ const char *ip6tc_get_target(const struct ip6t_entry *e, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Is this a built-in chain? */ -int ip6tc_builtin(const char *chain, struct ip6tc_handle *const handle); +int ip6tc_builtin(const char *chain, struct xtc_handle *const handle); /* Get the policy of a given built-in chain */ const char *ip6tc_get_policy(const char *chain, - struct ip6t_counters *counters, - struct ip6tc_handle *handle); + struct xt_counters *counters, + struct xtc_handle *handle); /* These functions return TRUE for OK or 0 and set errno. If errno == 0, it means there was a version error (ie. upgrade libiptc). */ /* Rule numbers start at 1 for the first rule. */ /* Insert the entry `fw' in chain `chain' into position `rulenum'. */ -int ip6tc_insert_entry(const ip6t_chainlabel chain, +int ip6tc_insert_entry(const xt_chainlabel chain, const struct ip6t_entry *e, unsigned int rulenum, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Atomically replace rule `rulenum' in `chain' with `fw'. */ -int ip6tc_replace_entry(const ip6t_chainlabel chain, +int ip6tc_replace_entry(const xt_chainlabel chain, const struct ip6t_entry *e, unsigned int rulenum, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Append entry `fw' to chain `chain'. Equivalent to insert with rulenum = length of chain. */ -int ip6tc_append_entry(const ip6t_chainlabel chain, +int ip6tc_append_entry(const xt_chainlabel chain, const struct ip6t_entry *e, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Check whether a matching rule exists */ -int ip6tc_check_entry(const ip6t_chainlabel chain, +int ip6tc_check_entry(const xt_chainlabel chain, const struct ip6t_entry *origfw, unsigned char *matchmask, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Delete the first rule in `chain' which matches `fw'. */ -int ip6tc_delete_entry(const ip6t_chainlabel chain, +int ip6tc_delete_entry(const xt_chainlabel chain, const struct ip6t_entry *origfw, unsigned char *matchmask, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Delete the rule in position `rulenum' in `chain'. */ -int ip6tc_delete_num_entry(const ip6t_chainlabel chain, +int ip6tc_delete_num_entry(const xt_chainlabel chain, unsigned int rulenum, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Check the packet `fw' on chain `chain'. Returns the verdict, or NULL and sets errno. */ -const char *ip6tc_check_packet(const ip6t_chainlabel chain, +const char *ip6tc_check_packet(const xt_chainlabel chain, struct ip6t_entry *, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* Flushes the entries in the given chain (ie. empties chain). */ -int ip6tc_flush_entries(const ip6t_chainlabel chain, - struct ip6tc_handle *handle); +int ip6tc_flush_entries(const xt_chainlabel chain, + struct xtc_handle *handle); /* Zeroes the counters in a chain. */ -int ip6tc_zero_entries(const ip6t_chainlabel chain, - struct ip6tc_handle *handle); +int ip6tc_zero_entries(const xt_chainlabel chain, + struct xtc_handle *handle); /* Creates a new chain. */ -int ip6tc_create_chain(const ip6t_chainlabel chain, - struct ip6tc_handle *handle); +int ip6tc_create_chain(const xt_chainlabel chain, + struct xtc_handle *handle); /* Deletes a chain. */ -int ip6tc_delete_chain(const ip6t_chainlabel chain, - struct ip6tc_handle *handle); +int ip6tc_delete_chain(const xt_chainlabel chain, + struct xtc_handle *handle); /* Renames a chain. */ -int ip6tc_rename_chain(const ip6t_chainlabel oldname, - const ip6t_chainlabel newname, - struct ip6tc_handle *handle); +int ip6tc_rename_chain(const xt_chainlabel oldname, + const xt_chainlabel newname, + struct xtc_handle *handle); /* Sets the policy on a built-in chain. */ -int ip6tc_set_policy(const ip6t_chainlabel chain, - const ip6t_chainlabel policy, - struct ip6t_counters *counters, - struct ip6tc_handle *handle); +int ip6tc_set_policy(const xt_chainlabel chain, + const xt_chainlabel policy, + struct xt_counters *counters, + struct xtc_handle *handle); /* Get the number of references to this chain */ -int ip6tc_get_references(unsigned int *ref, const ip6t_chainlabel chain, - struct ip6tc_handle *handle); +int ip6tc_get_references(unsigned int *ref, const xt_chainlabel chain, + struct xtc_handle *handle); /* read packet and byte counters for a specific rule */ -struct ip6t_counters *ip6tc_read_counter(const ip6t_chainlabel chain, +struct xt_counters *ip6tc_read_counter(const xt_chainlabel chain, unsigned int rulenum, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* zero packet and byte counters for a specific rule */ -int ip6tc_zero_counter(const ip6t_chainlabel chain, +int ip6tc_zero_counter(const xt_chainlabel chain, unsigned int rulenum, - struct ip6tc_handle *handle); + struct xtc_handle *handle); /* set packet and byte counters for a specific rule */ -int ip6tc_set_counter(const ip6t_chainlabel chain, +int ip6tc_set_counter(const xt_chainlabel chain, unsigned int rulenum, - struct ip6t_counters *counters, - struct ip6tc_handle *handle); + struct xt_counters *counters, + struct xtc_handle *handle); /* Makes the actual changes. */ -int ip6tc_commit(struct ip6tc_handle *handle); +int ip6tc_commit(struct xtc_handle *handle); /* Get raw socket. */ int ip6tc_get_raw_socket(void); @@ -157,6 +157,8 @@ const char *ip6tc_strerror(int err); /* Return prefix length, or -1 if not contiguous */ int ipv6_prefix_length(const struct in6_addr *a); -extern void dump_entries6(struct ip6tc_handle *const); +extern void dump_entries6(struct xtc_handle *const); + +extern const struct xtc_ops ip6tc_ops; #endif /* _LIBIP6TC_H */ diff --git a/include/libiptc/libiptc.h b/include/libiptc/libiptc.h index 3497d6ae..24cdbdb7 100644 --- a/include/libiptc/libiptc.h +++ b/include/libiptc/libiptc.h @@ -10,14 +10,14 @@ # include <limits.h> /* INT_MAX in ip_tables.h */ #endif #include <linux/netfilter_ipv4/ip_tables.h> +#include <libiptc/xtcshared.h> #ifdef __cplusplus extern "C" { #endif -struct iptc_handle; - -typedef char ipt_chainlabel[32]; +#define iptc_handle xtc_handle +#define ipt_chainlabel xt_chainlabel #define IPTC_LABEL_ACCEPT "ACCEPT" #define IPTC_LABEL_DROP "DROP" @@ -25,134 +25,134 @@ typedef char ipt_chainlabel[32]; #define IPTC_LABEL_RETURN "RETURN" /* Does this chain exist? */ -int iptc_is_chain(const char *chain, struct iptc_handle *const handle); +int iptc_is_chain(const char *chain, struct xtc_handle *const handle); /* Take a snapshot of the rules. Returns NULL on error. */ -struct iptc_handle *iptc_init(const char *tablename); +struct xtc_handle *iptc_init(const char *tablename); /* Cleanup after iptc_init(). */ -void iptc_free(struct iptc_handle *h); +void iptc_free(struct xtc_handle *h); /* Iterator functions to run through the chains. Returns NULL at end. */ -const char *iptc_first_chain(struct iptc_handle *handle); -const char *iptc_next_chain(struct iptc_handle *handle); +const char *iptc_first_chain(struct xtc_handle *handle); +const char *iptc_next_chain(struct xtc_handle *handle); /* Get first rule in the given chain: NULL for empty chain. */ const struct ipt_entry *iptc_first_rule(const char *chain, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Returns NULL when rules run out. */ const struct ipt_entry *iptc_next_rule(const struct ipt_entry *prev, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Returns a pointer to the target name of this entry. */ const char *iptc_get_target(const struct ipt_entry *e, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Is this a built-in chain? */ -int iptc_builtin(const char *chain, struct iptc_handle *const handle); +int iptc_builtin(const char *chain, struct xtc_handle *const handle); /* Get the policy of a given built-in chain */ const char *iptc_get_policy(const char *chain, - struct ipt_counters *counter, - struct iptc_handle *handle); + struct xt_counters *counter, + struct xtc_handle *handle); /* These functions return TRUE for OK or 0 and set errno. If errno == 0, it means there was a version error (ie. upgrade libiptc). */ /* Rule numbers start at 1 for the first rule. */ /* Insert the entry `e' in chain `chain' into position `rulenum'. */ -int iptc_insert_entry(const ipt_chainlabel chain, +int iptc_insert_entry(const xt_chainlabel chain, const struct ipt_entry *e, unsigned int rulenum, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Atomically replace rule `rulenum' in `chain' with `e'. */ -int iptc_replace_entry(const ipt_chainlabel chain, +int iptc_replace_entry(const xt_chainlabel chain, const struct ipt_entry *e, unsigned int rulenum, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Append entry `e' to chain `chain'. Equivalent to insert with rulenum = length of chain. */ -int iptc_append_entry(const ipt_chainlabel chain, +int iptc_append_entry(const xt_chainlabel chain, const struct ipt_entry *e, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Check whether a mathching rule exists */ -int iptc_check_entry(const ipt_chainlabel chain, +int iptc_check_entry(const xt_chainlabel chain, const struct ipt_entry *origfw, unsigned char *matchmask, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Delete the first rule in `chain' which matches `e', subject to matchmask (array of length == origfw) */ -int iptc_delete_entry(const ipt_chainlabel chain, +int iptc_delete_entry(const xt_chainlabel chain, const struct ipt_entry *origfw, unsigned char *matchmask, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Delete the rule in position `rulenum' in `chain'. */ -int iptc_delete_num_entry(const ipt_chainlabel chain, +int iptc_delete_num_entry(const xt_chainlabel chain, unsigned int rulenum, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Check the packet `e' on chain `chain'. Returns the verdict, or NULL and sets errno. */ -const char *iptc_check_packet(const ipt_chainlabel chain, +const char *iptc_check_packet(const xt_chainlabel chain, struct ipt_entry *entry, - struct iptc_handle *handle); + struct xtc_handle *handle); /* Flushes the entries in the given chain (ie. empties chain). */ -int iptc_flush_entries(const ipt_chainlabel chain, - struct iptc_handle *handle); +int iptc_flush_entries(const xt_chainlabel chain, + struct xtc_handle *handle); /* Zeroes the counters in a chain. */ -int iptc_zero_entries(const ipt_chainlabel chain, - struct iptc_handle *handle); +int iptc_zero_entries(const xt_chainlabel chain, + struct xtc_handle *handle); /* Creates a new chain. */ -int iptc_create_chain(const ipt_chainlabel chain, - struct iptc_handle *handle); +int iptc_create_chain(const xt_chainlabel chain, + struct xtc_handle *handle); /* Deletes a chain. */ -int iptc_delete_chain(const ipt_chainlabel chain, - struct iptc_handle *handle); +int iptc_delete_chain(const xt_chainlabel chain, + struct xtc_handle *handle); /* Renames a chain. */ -int iptc_rename_chain(const ipt_chainlabel oldname, - const ipt_chainlabel newname, - struct iptc_handle *handle); +int iptc_rename_chain(const xt_chainlabel oldname, + const xt_chainlabel newname, + struct xtc_handle *handle); /* Sets the policy on a built-in chain. */ -int iptc_set_policy(const ipt_chainlabel chain, - const ipt_chainlabel policy, - struct ipt_counters *counters, - struct iptc_handle *handle); +int iptc_set_policy(const xt_chainlabel chain, + const xt_chainlabel policy, + struct xt_counters *counters, + struct xtc_handle *handle); /* Get the number of references to this chain */ int iptc_get_references(unsigned int *ref, - const ipt_chainlabel chain, - struct iptc_handle *handle); + const xt_chainlabel chain, + struct xtc_handle *handle); /* read packet and byte counters for a specific rule */ -struct ipt_counters *iptc_read_counter(const ipt_chainlabel chain, +struct xt_counters *iptc_read_counter(const xt_chainlabel chain, unsigned int rulenum, - struct iptc_handle *handle); + struct xtc_handle *handle); /* zero packet and byte counters for a specific rule */ -int iptc_zero_counter(const ipt_chainlabel chain, +int iptc_zero_counter(const xt_chainlabel chain, unsigned int rulenum, - struct iptc_handle *handle); + struct xtc_handle *handle); /* set packet and byte counters for a specific rule */ -int iptc_set_counter(const ipt_chainlabel chain, +int iptc_set_counter(const xt_chainlabel chain, unsigned int rulenum, - struct ipt_counters *counters, - struct iptc_handle *handle); + struct xt_counters *counters, + struct xtc_handle *handle); /* Makes the actual changes. */ -int iptc_commit(struct iptc_handle *handle); +int iptc_commit(struct xtc_handle *handle); /* Get raw socket. */ int iptc_get_raw_socket(void); @@ -160,7 +160,9 @@ int iptc_get_raw_socket(void); /* Translates errno numbers into more human-readable form than strerror. */ const char *iptc_strerror(int err); -extern void dump_entries(struct iptc_handle *const); +extern void dump_entries(struct xtc_handle *const); + +extern const struct xtc_ops iptc_ops; #ifdef __cplusplus } diff --git a/include/libiptc/xtcshared.h b/include/libiptc/xtcshared.h new file mode 100644 index 00000000..773ebc4c --- /dev/null +++ b/include/libiptc/xtcshared.h @@ -0,0 +1,20 @@ +#ifndef _LIBXTC_SHARED_H +#define _LIBXTC_SHARED_H 1 + +typedef char xt_chainlabel[32]; +struct xtc_handle; +struct xt_counters; + +struct xtc_ops { + int (*commit)(struct xtc_handle *); + void (*free)(struct xtc_handle *); + int (*builtin)(const char *, struct xtc_handle *const); + int (*is_chain)(const char *, struct xtc_handle *const); + int (*flush_entries)(const xt_chainlabel, struct xtc_handle *); + int (*create_chain)(const xt_chainlabel, struct xtc_handle *); + int (*set_policy)(const xt_chainlabel, const xt_chainlabel, + struct xt_counters *, struct xtc_handle *); + const char *(*strerror)(int); +}; + +#endif /* _LIBXTC_SHARED_H */ |