libiptc: use a family-invariant xtc_ops struct for code reduction
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/include/libiptc/libip6tc.h b/include/libiptc/libip6tc.h
index 61c1e7f..c656bc4 100644
--- a/include/libiptc/libip6tc.h
+++ b/include/libiptc/libip6tc.h
@@ -159,4 +159,6 @@
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 6f64f5a..24cdbdb 100644
--- a/include/libiptc/libiptc.h
+++ b/include/libiptc/libiptc.h
@@ -162,6 +162,8 @@
extern void dump_entries(struct xtc_handle *const);
+extern const struct xtc_ops iptc_ops;
+
#ifdef __cplusplus
}
#endif
diff --git a/include/libiptc/xtcshared.h b/include/libiptc/xtcshared.h
index 89a5151..773ebc4 100644
--- a/include/libiptc/xtcshared.h
+++ b/include/libiptc/xtcshared.h
@@ -3,5 +3,18 @@
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 */
diff --git a/libiptc/Makefile.am b/libiptc/Makefile.am
index 22c920f..0b59007 100644
--- a/libiptc/Makefile.am
+++ b/libiptc/Makefile.am
@@ -10,6 +10,6 @@
libiptc_la_LIBADD = libip4tc.la libip6tc.la
libiptc_la_LDFLAGS = -version-info 0:0:0 ${libiptc_LDFLAGS2}
libip4tc_la_SOURCES = libip4tc.c
-libip4tc_la_LDFLAGS = -version-info 0:0:0
+libip4tc_la_LDFLAGS = -version-info 1:0:1
libip6tc_la_SOURCES = libip6tc.c
-libip6tc_la_LDFLAGS = -version-info 0:0:0 ${libiptc_LDFLAGS2}
+libip6tc_la_LDFLAGS = -version-info 1:0:1 ${libiptc_LDFLAGS2}
diff --git a/libiptc/libip4tc.c b/libiptc/libip4tc.c
index c55cbc7..dd59951 100644
--- a/libiptc/libip4tc.c
+++ b/libiptc/libip4tc.c
@@ -90,6 +90,7 @@
#define TC_STRERROR iptc_strerror
#define TC_NUM_RULES iptc_num_rules
#define TC_GET_RULE iptc_get_rule
+#define TC_OPS iptc_ops
#define TC_AF AF_INET
#define TC_IPPROTO IPPROTO_IP
diff --git a/libiptc/libip6tc.c b/libiptc/libip6tc.c
index 9febee3..7128e1c 100644
--- a/libiptc/libip6tc.c
+++ b/libiptc/libip6tc.c
@@ -88,6 +88,7 @@
#define TC_STRERROR ip6tc_strerror
#define TC_NUM_RULES ip6tc_num_rules
#define TC_GET_RULE ip6tc_get_rule
+#define TC_OPS ip6tc_ops
#define TC_AF AF_INET6
#define TC_IPPROTO IPPROTO_IPV6
diff --git a/libiptc/libiptc.c b/libiptc/libiptc.c
index 593c5de..63fcfc2 100644
--- a/libiptc/libiptc.c
+++ b/libiptc/libiptc.c
@@ -33,6 +33,7 @@
#include <sys/socket.h>
#include <stdbool.h>
#include <xtables.h>
+#include <libiptc/xtcshared.h>
#include "linux_list.h"
@@ -2731,3 +2732,14 @@
return strerror(err);
}
+
+const struct xtc_ops TC_OPS = {
+ .commit = TC_COMMIT,
+ .free = TC_FREE,
+ .builtin = TC_BUILTIN,
+ .is_chain = TC_IS_CHAIN,
+ .flush_entries = TC_FLUSH_ENTRIES,
+ .create_chain = TC_CREATE_CHAIN,
+ .set_policy = TC_SET_POLICY,
+ .strerror = TC_STRERROR,
+};