[LEDE-DEV] [PATCH 6/7] firewall3: add UBUS support for include scripts

[Pierre Lebleu]

It gives the ability to include scripts via procd
services and netifd interface firewall data.

Signed-off-by: Pierre Lebleu <pme.lebleu at gmail.com>
---
 includes.c |   64 +++++++++++++++++++++++++++++++++++++++++++++++++-----------
 includes.h |    9 ++++++---
 main.c     |    2 +-
 3 files changed, 60 insertions(+), 15 deletions(-)

diff --git a/includes.c b/includes.c
index 7ca164f..f373c9f 100644
--- a/includes.c
+++ b/includes.c
@@ -31,15 +31,58 @@ const struct fw3_option fw3_include_opts[] = {
 };
 
 
+static struct fw3_include *
+fw3_alloc_include(struct fw3_state *state)
+{
+	struct fw3_include *include;
+
+	include = calloc(1, sizeof(*include));
+	if (!include)
+		return NULL;
+
+	include->enabled = true;
+
+	list_add_tail(&include->list, &state->includes);
+
+	return include;
+}
+
 void
-fw3_load_includes(struct fw3_state *state, struct uci_package *p)
+fw3_load_includes(struct fw3_state *state, struct uci_package *p,
+		struct blob_attr *a)
 {
 	struct uci_section *s;
 	struct uci_element *e;
-	struct fw3_include *include;
+	struct fw3_include *include, *n;
+	struct blob_attr *entry, *opt;
+	unsigned rem, orem;
 
 	INIT_LIST_HEAD(&state->includes);
 
+	blob_for_each_attr(entry, a, rem)
+	{
+		const char *type = NULL;
+		const char *name = "ubus include";
+		blobmsg_for_each_attr(opt, entry, orem)
+			if (!strcmp(blobmsg_name(opt), "type"))
+				type = blobmsg_get_string(opt);
+			else if (!strcmp(blobmsg_name(opt), "name"))
+				name = blobmsg_get_string(opt);
+
+		if (!type || (strcmp(type, "script") && strcmp(type, "restore")))
+			continue;
+
+		if (!(include = fw3_alloc_include(state)))
+			continue;
+
+		if (!fw3_parse_blob_options(include, fw3_include_opts, entry, name))
+		{
+			warn("%s skipped due to invalid options\n", name);
+			fw3_free_include(include);
+			continue;
+		}
+	}
+
 	uci_foreach_element(&p->sections, e)
 	{
 		s = uci_to_section(e);
@@ -47,12 +90,10 @@ fw3_load_includes(struct fw3_state *state, struct uci_package *p)
 		if (strcmp(s->type, "include"))
 			continue;
 
-		include = calloc(1, sizeof(*include));
-		if (!include)
+		if (!(include = fw3_alloc_include(state)))
 			continue;
 
 		include->name = e->name;
-		include->enabled = true;
 
 		if (!fw3_parse_options(include, fw3_include_opts, s))
 		{
@@ -60,7 +101,10 @@ fw3_load_includes(struct fw3_state *state, struct uci_package *p)
 			fw3_free_include(include);
 			continue;
 		}
+	}
 
+	list_for_each_entry_safe(include, n, &state->includes, list)
+	{
 		if (!include->enabled)
 		{
 			fw3_free_include(include);
@@ -69,17 +113,15 @@ fw3_load_includes(struct fw3_state *state, struct uci_package *p)
 
 		if (!include->path)
 		{
-			warn_elem(e, "must specify a path");
+			warn("%s must specify a path", include->name);
 			fw3_free_include(include);
 			continue;
 		}
 
 		if (include->type == FW3_INC_TYPE_RESTORE && !include->family)
-			warn_elem(e, "does not specify a family, include will get loaded "
-			             "with both iptables-restore and ip6tables-restore!");
-
-		list_add_tail(&include->list, &state->includes);
-		continue;
+			warn("%s does not specify a family, include will get loaded "
+				"with both iptables-restore and ip6tables-restore!",
+				include->name);
 	}
 }
 
diff --git a/includes.h b/includes.h
index 070cb3a..3a0af1b 100644
--- a/includes.h
+++ b/includes.h
@@ -24,14 +24,17 @@
 
 extern const struct fw3_option fw3_include_opts[];
 
-void fw3_load_includes(struct fw3_state *state, struct uci_package *p);
+void fw3_load_includes(struct fw3_state *state, struct uci_package *p, struct blob_attr *a);
 
 void fw3_print_includes(struct fw3_state *state, enum fw3_family family,
                         bool reload);
 
 void fw3_run_includes(struct fw3_state *state, bool reload);
 
-#define fw3_free_include(include) \
-	fw3_free_object(include, fw3_include_opts)
+static inline void fw3_free_include(struct fw3_include *include)
+{
+	list_del(&include->list);
+	fw3_free_object(include, fw3_include_opts);
+}
 
 #endif
diff --git a/main.c b/main.c
index 6e275ef..c4b8228 100644
--- a/main.c
+++ b/main.c
@@ -107,7 +107,7 @@ build_state(bool runtime)
 	fw3_load_redirects(state, p, b.head);
 	fw3_load_snats(state, p, b.head);
 	fw3_load_forwards(state, p, b.head);
-	fw3_load_includes(state, p);
+	fw3_load_includes(state, p, b.head);
 
 	return true;
 }
-- 
1.7.9.5