X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fgrub2%2Fgrub2.h;h=e79bf41d4b655598a3019394a0c2f5ccbbac0ca3;hp=60a573456d3afa286400a7f7e9f2629b0947f0ef;hb=ae3c354e844698bdb4ed35a6845aa9dca1e9205f;hpb=5c6c8ea8ca66fe70563143cb226852a10b1a98fb;ds=sidebyside

diff --git a/discover/grub2/grub2.h b/discover/grub2/grub2.h
index 60a5734..e79bf41 100644
--- a/discover/grub2/grub2.h
+++ b/discover/grub2/grub2.h
@@ -1,6 +1,8 @@
 #ifndef GRUB2_H
 #define GRUB2_H
 
+#include <discover/device-handler.h>
+
 #include <stdbool.h>
 #include <list/list.h>
 
@@ -12,12 +14,10 @@ struct grub2_word {
 		GRUB2_WORD_VAR,
 	} type;
 	union {
-		char	*text;
-		struct {
-			const char	*name;
-			bool		split;
-		} var;
+		char		*text;
+		const char	*name;
 	};
+	bool			split;
 	struct grub2_word	*next;
 	struct grub2_word	*last;
 	struct list_item	argv_list;
@@ -43,6 +43,7 @@ struct grub2_statement {
 		STMT_TYPE_MENUENTRY,
 		STMT_TYPE_IF,
 		STMT_TYPE_BLOCK,
+		STMT_TYPE_CONDITIONAL,
 	} type;
 	int			(*exec)(struct grub2_script *,
 					struct grub2_statement *);
@@ -59,11 +60,16 @@ struct grub2_statement_menuentry {
 	struct grub2_statements	*statements;
 };
 
-struct grub2_statement_if {
+struct grub2_statement_conditional {
 	struct grub2_statement	st;
 	struct grub2_statement	*condition;
-	struct grub2_statements	*true_case;
-	struct grub2_statements	*false_case;
+	struct grub2_statements	*statements;
+};
+
+struct grub2_statement_if {
+	struct grub2_statement	st;
+	struct grub2_statements	*conditionals;
+	struct grub2_statements	*else_case;
 };
 
 struct grub2_statement_block {
@@ -71,18 +77,27 @@ struct grub2_statement_block {
 	struct grub2_statements	*statements;
 };
 
-struct grub2_command {
-	const char		*name;
-	int			(*exec)(struct grub2_script *script,
-					int argc, char *argv[]);
-	struct list_item	list;
+struct grub2_statement_function {
+	struct grub2_statement	st;
+	struct grub2_word	*name;
+	struct grub2_statements	*body;
+};
+
+struct grub2_statement_for {
+	struct grub2_statement	st;
+	struct grub2_word	*var;
+	struct grub2_argv	*list;
+	struct grub2_statements	*body;
 };
 
 struct grub2_script {
-	struct grub2_statements	*statements;
-	struct list		environment;
-	struct list		commands;
-	struct list		symtab;
+	struct grub2_statements		*statements;
+	struct list			environment;
+	struct list			symtab;
+	struct discover_context		*ctx;
+	struct discover_boot_option	*opt;
+	const char			*filename;
+	unsigned int			n_options;
 };
 
 struct grub2_parser {
@@ -90,6 +105,10 @@ struct grub2_parser {
 	struct grub2_script	*script;
 };
 
+/* type for builtin functions */
+typedef int (*grub2_function)(struct grub2_script *script, void *data,
+				int argc, char *argv[]);
+
 struct grub2_statements *create_statements(struct grub2_parser *parser);
 
 struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
@@ -98,14 +117,25 @@ struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
 struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
 		struct grub2_argv *argv, struct grub2_statements *stmts);
 
+struct grub2_statement *create_statement_conditional(
+		struct grub2_parser *parser, struct grub2_statement *condition,
+		struct grub2_statements *statements);
+
 struct grub2_statement *create_statement_if(struct grub2_parser *parser,
-		struct grub2_statement *condition,
-		struct grub2_statements *true_case,
-		struct grub2_statements *false_case);
+		struct grub2_statement *conditional,
+		struct grub2_statements *elifs,
+		struct grub2_statements *else_case);
 
 struct grub2_statement *create_statement_block(struct grub2_parser *parser,
 		struct grub2_statements *stmts);
 
+struct grub2_statement *create_statement_function(struct grub2_parser *parser,
+		struct grub2_word *name, struct grub2_statements *body);
+
+struct grub2_statement *create_statement_for(struct grub2_parser *parser,
+		struct grub2_word *var, struct grub2_argv *list,
+		struct grub2_statements *body);
+
 struct grub2_word *create_word_text(struct grub2_parser *parser,
 		const char *text);
 
@@ -126,24 +156,41 @@ void script_execute(struct grub2_script *script);
 
 int statement_simple_execute(struct grub2_script *script,
 		struct grub2_statement *statement);
+int statement_block_execute(struct grub2_script *script,
+		struct grub2_statement *statement);
 int statement_if_execute(struct grub2_script *script,
 		struct grub2_statement *statement);
 int statement_menuentry_execute(struct grub2_script *script,
 		struct grub2_statement *statement);
+int statement_function_execute(struct grub2_script *script,
+		struct grub2_statement *statement);
+int statement_for_execute(struct grub2_script *script,
+		struct grub2_statement *statement);
 
-struct grub2_script *create_script(void *ctx);
+struct grub2_script *create_script(struct grub2_parser *parser,
+		struct discover_context *ctx);
 
 const char *script_env_get(struct grub2_script *script, const char *name);
 
 void script_env_set(struct grub2_script *script,
 		const char *name, const char *value);
 
-void script_register_command(struct grub2_script *script,
-		struct grub2_command *command);
-
-struct grub2_command *script_lookup_command(struct grub2_script *script,
-		const char *name);
+void script_register_function(struct grub2_script *script,
+		const char *name, grub2_function fn, void *data);
 
 void register_builtins(struct grub2_script *script);
+
+/* resources */
+struct resource *create_grub2_resource(struct discover_boot_option *opt,
+		struct discover_device *orig_device,
+		const char *root, const char *path);
+
+bool resolve_grub2_resource(struct device_handler *handler,
+		struct resource *res);
+
+/* external parser api */
+struct grub2_parser *grub2_parser_create(struct discover_context *ctx);
+void grub2_parser_parse(struct grub2_parser *parser, const char *filename,
+		char *buf, int len);
 #endif /* GRUB2_H */