X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fparser.h;h=e7d52fe5d2ae671e96e78c6ec6270396e4bb82a3;hp=c1b4012d67cb29764fbb499cb27224555137b4d8;hb=f110c98b582be12c9d4ac4a13a7bf5aff2b7dd57;hpb=b86a7a0533c4d723ea940ac2071f845f165f832c

diff --git a/discover/parser.h b/discover/parser.h
index c1b4012..e7d52fe 100644
--- a/discover/parser.h
+++ b/discover/parser.h
@@ -2,6 +2,10 @@
 #define _PARSER_H
 
 #include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
 
 #include "device-handler.h"
 
@@ -27,10 +31,7 @@ struct resource;
  */
 struct parser {
 	char			*name;
-	enum conf_method	method;
-	const char * const	*filenames;
-	int			(*parse)(struct discover_context *ctx,
-						char *buf, int len);
+	int			(*parse)(struct discover_context *ctx);
 	bool			(*resolve_resource)(
 						struct device_handler *handler,
 						struct resource *res);
@@ -44,15 +45,58 @@ enum generic_icon_type {
 	ICON_TYPE_UNKNOWN
 };
 
+struct parser_found_file {
+	const char *filename;
+	unsigned ino;
+	struct list_item list;
+};
+
 #define streq(a,b) (!strcasecmp((a),(b)))
 
 void parser_init(void);
 
-void iterate_parsers(struct discover_context *ctx, enum conf_method method);
+void iterate_parsers(struct discover_context *ctx);
 int parse_user_event(struct discover_context *ctx, struct event *event);
 
+/* File IO functions for parsers; these should be the only interface that
+ * parsers use to access a device's filesystem.
+ *
+ * These are intended for small amounts of data, typically text
+ * configuration and state files.  Note that parser_request_file,
+ * and parser_replace_file work only on non-directories.
+ */
 int parser_request_file(struct discover_context *ctx,
 		struct discover_device *dev, const char *filename,
 		char **buf, int *len);
+int parser_replace_file(struct discover_context *ctx,
+		struct discover_device *dev, const char *filename,
+		char *buf, int len);
+int parser_request_url(struct discover_context *ctx, struct pb_url *url,
+		char **buf, int *len);
+/* parser_stat_path returns 0 if path can be stated on dev by the
+ * running user.  Note that this function follows symlinks, like the
+ * stat system call.  When the function returns 0, also fills in
+ * statbuf for the path.  Returns non-zero on error.  This function
+ * does not have the limitations on file size that the functions above
+ * do.  Unlike some of the functions above, this function also works
+ * on directories. */
+int parser_stat_path(struct discover_context *ctx,
+		struct discover_device *dev, const char *path,
+		struct stat *statbuf);
+/* Function used to list the files on a directory. The dirname should
+ * be relative to the discover context device mount path. It returns
+ * the number of files returned in files or a negative value on error.
+ */
+int parser_scandir(struct discover_context *ctx, const char *dirname,
+		   struct dirent ***files, int (*filter)(const struct dirent *),
+		   int (*comp)(const struct dirent **, const struct dirent **));
+
+/* parser_is_unique - Test a file against a list of known files.
+ * If the file @filename exists and the file is not in @found_list add the
+ * file to @found_list and return true.  Use when searching case-insensitive
+ * filesystems.
+ */
+bool parser_is_unique(struct discover_context *ctx, struct discover_device *dev, const char *filename,
+		struct list *found_list);
 
 #endif /* _PARSER_H */