5 files changed, 13 insertions, 0 deletions
diff --git a/include/libnftables/chain.h b/include/libnftables/chain.h
index 313c26a..29f7bc7 100644
--- a/include/libnftables/chain.h
+++ b/include/libnftables/chain.h
@@ -2,6 +2,7 @@
 #define _CHAIN_H_
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -26,6 +27,7 @@ enum {
 	NFT_CHAIN_ATTR_TYPE,
 };
 
+bool nft_chain_attr_is_set(struct nft_chain *c, uint16_t attr);
 void nft_chain_attr_unset(struct nft_chain *c, uint16_t attr);
 void nft_chain_attr_set(struct nft_chain *t, uint16_t attr, const void *data);
 void nft_chain_attr_set_u32(struct nft_chain *t, uint16_t attr, uint32_t data);
diff --git a/include/libnftables/expr.h b/include/libnftables/expr.h
index bd3fd6e..1ab5590 100644
--- a/include/libnftables/expr.h
+++ b/include/libnftables/expr.h
@@ -15,6 +15,7 @@ enum {
 struct nft_rule_expr *nft_rule_expr_alloc(const char *name);
 void nft_rule_expr_free(struct nft_rule_expr *expr);
 
+bool nft_rule_expr_is_set(const struct nft_rule_expr *expr, uint16_t type);
 void nft_rule_expr_set(struct nft_rule_expr *expr, uint16_t type, const void *data, size_t data_len);
 void nft_rule_expr_set_u8(struct nft_rule_expr *expr, uint16_t type, uint8_t data);
 void nft_rule_expr_set_u32(struct nft_rule_expr *expr, uint16_t type, uint32_t data);
diff --git a/include/libnftables/rule.h b/include/libnftables/rule.h
index ce8bd1f..242ea07 100644
--- a/include/libnftables/rule.h
+++ b/include/libnftables/rule.h
@@ -2,6 +2,7 @@
 #define _RULE_H_
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -24,6 +25,7 @@ enum {
 };
 
 void nft_rule_attr_unset(struct nft_rule *r, uint16_t attr);
+bool nft_rule_attr_is_set(struct nft_rule *r, uint16_t attr);
 void nft_rule_attr_set(struct nft_rule *r, uint16_t attr, const void *data);
 void nft_rule_attr_set_u32(struct nft_rule *r, uint16_t attr, uint32_t val);
 void nft_rule_attr_set_u64(struct nft_rule *r, uint16_t attr, uint64_t val);
diff --git a/include/libnftables/set.h b/include/libnftables/set.h
index f337f60..bcd4db7 100644
--- a/include/libnftables/set.h
+++ b/include/libnftables/set.h
@@ -1,6 +1,9 @@
 #ifndef _NFT_SET_H_
 #define _NFT_SET_H_
 
+#include <stdint.h>
+#include <stdbool.h>
+
 enum {
 	NFT_SET_ATTR_TABLE,
 	NFT_SET_ATTR_NAME,
@@ -16,6 +19,7 @@ struct nft_set;
 struct nft_set *nft_set_alloc(void);
 void nft_set_free(struct nft_set *s);
 
+bool nft_set_attr_is_set(struct nft_set *s, uint16_t attr);
 void nft_set_attr_unset(struct nft_set *s, uint16_t attr);
 void nft_set_attr_set(struct nft_set *s, uint16_t attr, const void *data);
 void nft_set_attr_set_u32(struct nft_set *s, uint16_t attr, uint32_t val);
@@ -73,6 +77,8 @@ void *nft_set_elem_attr_get(struct nft_set_elem *s, uint16_t attr, size_t *data_
 const char *nft_set_elem_attr_get_str(struct nft_set_elem *s, uint16_t attr);
 uint32_t nft_set_elem_attr_get_u32(struct nft_set_elem *s, uint16_t attr);
 
+bool nft_set_elem_attr_is_set(struct nft_set_elem *s, uint16_t attr);
+
 struct nlmsghdr *nft_set_elem_nlmsg_build_hdr(char *buf, uint16_t cmd, uint16_t family, uint16_t type, uint32_t seq);
 void nft_set_elems_nlmsg_build_payload(struct nlmsghdr *nlh, struct nft_set *s);
 void nft_set_elem_nlmsg_build_payload(struct nlmsghdr *nlh, struct nft_set_elem *e);
diff --git a/include/libnftables/table.h b/include/libnftables/table.h
index 8a4778f..9445879 100644
--- a/include/libnftables/table.h
+++ b/include/libnftables/table.h
@@ -2,6 +2,7 @@
 #define _TABLE_H_
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -18,6 +19,7 @@ enum {
 	NFT_TABLE_ATTR_FLAGS,
 };
 
+bool nft_table_attr_is_set(struct nft_table *t, uint16_t attr);
 void nft_table_attr_unset(struct nft_table *t, uint16_t attr);
 void nft_table_attr_set(struct nft_table *t, uint16_t attr, const void *data);
 const void *nft_table_attr_get(struct nft_table *t, uint16_t attr);