src: add interface to parse from file

This patch adds a new API to parse rule-set expressed in XML/JSON from
a file. A new enum nft_parse_input type is added for this purpose.

Signed-off-by: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

5 files changed, 12 insertions, 0 deletions

diff --git a/include/libnftables/chain.h b/include/libnftables/chain.h
index dec1a77..d213bf1 100644
--- a/include/libnftables/chain.h
+++ b/include/libnftables/chain.h
@@ -53,6 +53,8 @@ void nft_chain_nlmsg_build_payload(struct nlmsghdr *nlh, const struct nft_chain
 
 int nft_chain_parse(struct nft_chain *c, enum nft_parse_type type,
 		    const char *data, struct nft_parse_err *err);
+int nft_chain_parse_file(struct nft_chain *c, enum nft_parse_type type,
+			 FILE *fp, struct nft_parse_err *err);
 int nft_chain_snprintf(char *buf, size_t size, struct nft_chain *t, uint32_t type, uint32_t flags);
 int nft_chain_fprintf(FILE *fp, struct nft_chain *c, uint32_t type, uint32_t flags);
 
diff --git a/include/libnftables/rule.h b/include/libnftables/rule.h
index 1510203..48b9974 100644
--- a/include/libnftables/rule.h
+++ b/include/libnftables/rule.h
@@ -49,6 +49,8 @@ void nft_rule_nlmsg_build_payload(struct nlmsghdr *nlh, struct nft_rule *t);
 
 int nft_rule_parse(struct nft_rule *r, enum nft_parse_type type,
 		   const char *data, struct nft_parse_err *err);
+int nft_rule_parse_file(struct nft_rule *r, enum nft_parse_type type,
+			FILE *fp, struct nft_parse_err *err);
 int nft_rule_snprintf(char *buf, size_t size, struct nft_rule *t, uint32_t type, uint32_t flags);
 int nft_rule_fprintf(FILE *fp, struct nft_rule *r, uint32_t type, uint32_t flags);
 
diff --git a/include/libnftables/ruleset.h b/include/libnftables/ruleset.h
index b523346..f916fba 100644
--- a/include/libnftables/ruleset.h
+++ b/include/libnftables/ruleset.h
@@ -32,6 +32,8 @@ const void *nft_ruleset_attr_get(const struct nft_ruleset *r, uint16_t attr);
 
 int nft_ruleset_parse(struct nft_ruleset *rs, enum nft_parse_type type,
 		      const char *data, struct nft_parse_err *err);
+int nft_ruleset_parse_file(struct nft_ruleset *rs, enum nft_parse_type type,
+			   FILE *fp, struct nft_parse_err *err);
 int nft_ruleset_snprintf(char *buf, size_t size, const struct nft_ruleset *rs, uint32_t type, uint32_t flags);
 int nft_ruleset_fprintf(FILE *fp, const struct nft_ruleset *rs, uint32_t type, uint32_t flags);
 
diff --git a/include/libnftables/set.h b/include/libnftables/set.h
index 9711729..c4b1ff6 100644
--- a/include/libnftables/set.h
+++ b/include/libnftables/set.h
@@ -62,6 +62,8 @@ void nft_set_list_iter_destroy(struct nft_set_list_iter *iter);
 
 int nft_set_parse(struct nft_set *s, enum nft_parse_type type,
 		  const char *data, struct nft_parse_err *err);
+int nft_set_parse_file(struct nft_set *s, enum nft_parse_type type,
+		       FILE *fp, struct nft_parse_err *err);
 
 /*
  * Set elements
@@ -101,6 +103,8 @@ int nft_set_elem_nlmsg_parse(const struct nlmsghdr *nlh, struct nft_set_elem *s)
 
 int nft_set_elem_parse(struct nft_set_elem *e, enum nft_parse_type type,
 		       const char *data, struct nft_parse_err *err);
+int nft_set_elem_parse_file(struct nft_set_elem *e, enum nft_parse_type type,
+			    FILE *fp, struct nft_parse_err *err);
 int nft_set_elem_snprintf(char *buf, size_t size, struct nft_set_elem *s, uint32_t type, uint32_t flags);
 int nft_set_elem_fprintf(FILE *fp, struct nft_set_elem *se, uint32_t type, uint32_t flags);
 
diff --git a/include/libnftables/table.h b/include/libnftables/table.h
index 80f2349..64fbf88 100644
--- a/include/libnftables/table.h
+++ b/include/libnftables/table.h
@@ -41,6 +41,8 @@ void nft_table_nlmsg_build_payload(struct nlmsghdr *nlh, const struct nft_table
 
 int nft_table_parse(struct nft_table *t, enum nft_parse_type type,
 		    const char *data, struct nft_parse_err *err);
+int nft_table_parse_file(struct nft_table *t, enum nft_parse_type type,
+			 FILE *fp, struct nft_parse_err *err);
 int nft_table_snprintf(char *buf, size_t size, struct nft_table *t, uint32_t type, uint32_t flags);
 int nft_table_fprintf(FILE *fp, struct nft_table *t, uint32_t type, uint32_t flags);