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-rw-r--r--include/libiptc/libip6tc.h110
-rw-r--r--include/libiptc/libiptc.h110
-rw-r--r--include/libiptc/xtcshared.h20
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 */