X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fuci.git;a=blobdiff_plain;f=uci.h;h=2ae02b78f2eee6c5cd9cad48ee157e287c7893f2;hp=674981c8f369685ecc894ef843a34e91c02fc1a6;hb=bc7d0c4049b516945d4adae203575f8eddd94ce4;hpb=406d259cd1faab6de1ee2b817970c9f71d7945a2

diff --git a/uci.h b/uci.h
index 674981c..2ae02b7 100644
--- a/uci.h
+++ b/uci.h
@@ -32,7 +32,8 @@
 
 #define UCI_CONFDIR "/etc/config"
 #define UCI_SAVEDIR "/tmp/.uci"
-#define UCI_FILEMODE	0600
+#define UCI_DIRMODE 0700
+#define UCI_FILEMODE 0600
 
 enum
 {
@@ -54,6 +55,7 @@ struct uci_list
 	struct uci_list *prev;
 };
 
+struct uci_ptr;
 struct uci_element;
 struct uci_package;
 struct uci_section;
@@ -65,19 +67,6 @@ struct uci_parse_context;
 
 
 /**
- * uci_parse_tuple: Parse an uci tuple
- * @ctx: uci context
- * @str: input string
- * @package: output package pointer
- * @section: output section pointer
- * @option: output option pointer
- * @value: output value pointer
- *
- * format: <package>[.<section>[.<option>]][=<value>]
- */
-extern int uci_parse_tuple(struct uci_context *ctx, char *str, char **package, char **section, char **option, char **value);
-
-/**
  * uci_alloc_context: Allocate a new uci context
  */
 extern struct uci_context *uci_alloc_context(void);
@@ -95,6 +84,16 @@ extern void uci_free_context(struct uci_context *ctx);
 extern void uci_perror(struct uci_context *ctx, const char *str);
 
 /**
+ * uci_geterror: Get an error string for the last uci error
+ * @ctx: uci context
+ * @dest: target pointer for the string
+ * @str: prefix for the error message
+ *
+ * Note: string must be freed by the caller
+ */
+extern void uci_get_errorstr(struct uci_context *ctx, char **dest, const char *str);
+
+/**
  * uci_import: Import uci config data from a stream
  * @ctx: uci context
  * @stream: file stream to import from
@@ -134,18 +133,21 @@ extern int uci_load(struct uci_context *ctx, const char *name, struct uci_packag
 extern int uci_unload(struct uci_context *ctx, struct uci_package *p);
 
 /**
- * uci_lookup: Look up an uci element
- *
+ * uci_lookup_ptr: Split an uci tuple string and look up an element tree
  * @ctx: uci context
- * @res: where to store the result
- * @package: uci_package struct 
- * @section: config section (optional)
- * @option: option to search for (optional)
+ * @ptr: lookup result struct
+ * @str: uci tuple string to look up
+ * @extended: allow extended syntax lookup
  *
- * If section is omitted, then a pointer to the config package is returned
- * If option is omitted, then a pointer to the config section is returned
+ * if extended is set to true, uci_lookup_ptr supports the following 
+ * extended syntax:
+ *
+ * Examples:
+ *   network.@interface[0].ifname ('ifname' option of the first interface section)
+ *   network.@interface[-1]       (last interface section)
+ * Note: uci_lookup_ext will automatically load a config package if necessary
  */
-extern int uci_lookup(struct uci_context *ctx, struct uci_element **res, struct uci_package *package, char *section, char *option);
+extern int uci_lookup_ptr(struct uci_context *ctx, struct uci_ptr *ptr, char *str, bool extended);
 
 /**
  * uci_add_section: Add an unnamed section
@@ -154,55 +156,40 @@ extern int uci_lookup(struct uci_context *ctx, struct uci_element **res, struct
  * @type: section type
  * @res: pointer to store a reference to the new section in
  */
-extern int uci_add_section(struct uci_context *ctx, struct uci_package *p, char *type, struct uci_section **res);
-
-/**
- * uci_set_element_value: Replace an element's value with a new one
- * @ctx: uci context
- * @element: pointer to an uci_element struct pointer
- * @value: new value
- * 
- * Only valid for uci_option and uci_section. Will replace the type string
- * when used with an uci_section
- */
-extern int uci_set_element_value(struct uci_context *ctx, struct uci_element **element, char *value);
+extern int uci_add_section(struct uci_context *ctx, struct uci_package *p, const char *type, struct uci_section **res);
 
 /**
  * uci_set: Set an element's value; create the element if necessary
  * @ctx: uci context
- * @package: package name
- * @section: section name
- * @option: option name
- * @value: value (option) or type (section)
- * @result: store the updated element in this variable (optional)
+ * @ptr: uci pointer 
+ *
+ * The updated/created element is stored in ptr->last
  */
-extern int uci_set(struct uci_context *ctx, struct uci_package *p, char *section, char *option, char *value, struct uci_element **result);
+extern int uci_set(struct uci_context *ctx, struct uci_ptr *ptr);
 
 /**
- * uci_rename: Rename an element
+ * uci_add_list: Append a string to an element list
  * @ctx: uci context
- * @package: package name
- * @section: section name
- * @option: option name
- * @name: new name
+ * @ptr: uci pointer (with value)
+ *
+ * Note: if the given option already contains a string value,
+ * it will be converted to an 1-element-list before appending the next element
  */
-extern int uci_rename(struct uci_context *ctx, struct uci_package *p, char *section, char *option, char *name);
+extern int uci_add_list(struct uci_context *ctx, struct uci_ptr *ptr);
 
 /**
- * uci_delete_element: Delete a section or option
+ * uci_rename: Rename an element
  * @ctx: uci context
- * @e: element (section or option)
+ * @ptr: uci pointer (with value)
  */
-extern int uci_delete_element(struct uci_context *ctx, struct uci_element *e);
+extern int uci_rename(struct uci_context *ctx, struct uci_ptr *ptr);
 
 /**
  * uci_delete: Delete a section or option
  * @ctx: uci context
- * @p: uci package
- * @section: section name
- * @option: option name (optional)
+ * @ptr: uci pointer 
  */
-extern int uci_delete(struct uci_context *ctx, struct uci_package *p, char *section, char *option);
+extern int uci_delete(struct uci_context *ctx, struct uci_ptr *ptr);
 
 /**
  * uci_save: save change history for a package
@@ -257,11 +244,9 @@ extern int uci_add_history_path(struct uci_context *ctx, const char *dir);
 /**
  * uci_revert: revert all changes to a config item
  * @ctx: uci context
- * @p: pointer to a uci_package struct ptr (will be replaced by the revert)
- * @section: section name (optional)
- * @option option name (optional)
+ * @ptr: uci pointer
  */
-extern int uci_revert(struct uci_context *ctx, struct uci_package **p, char *section, char *option);
+extern int uci_revert(struct uci_context *ctx, struct uci_ptr *ptr);
 
 /**
  * uci_parse_argument: parse a shell-style argument, with an arbitrary quoting style
@@ -281,14 +266,30 @@ extern int uci_parse_argument(struct uci_context *ctx, FILE *stream, char **str,
  */
 extern int uci_set_backend(struct uci_context *ctx, const char *name);
 
+/**
+ * uci_validate_text: validate a value string for uci options
+ * @str: value
+ *
+ * this function checks whether a given string is acceptable as value
+ * for uci options
+ */
+extern bool uci_validate_text(const char *str);
+
 /* UCI data structures */
 enum uci_type {
-	UCI_TYPE_HISTORY = 0,
-	UCI_TYPE_PACKAGE = 1,
-	UCI_TYPE_SECTION = 2,
-	UCI_TYPE_OPTION = 3,
-	UCI_TYPE_PATH = 4,
-	UCI_TYPE_BACKEND = 5,
+	UCI_TYPE_UNSPEC = 0,
+	UCI_TYPE_HISTORY = 1,
+	UCI_TYPE_PACKAGE = 2,
+	UCI_TYPE_SECTION = 3,
+	UCI_TYPE_OPTION = 4,
+	UCI_TYPE_PATH = 5,
+	UCI_TYPE_BACKEND = 6,
+	UCI_TYPE_ITEM = 7,
+};
+
+enum uci_option_type {
+	UCI_TYPE_STRING = 0,
+	UCI_TYPE_LIST = 1,
 };
 
 enum uci_flags {
@@ -311,6 +312,10 @@ struct uci_backend
 	char **(*list_configs)(struct uci_context *ctx);
 	struct uci_package *(*load)(struct uci_context *ctx, const char *name);
 	void (*commit)(struct uci_context *ctx, struct uci_package **p, bool overwrite);
+
+	/* private: */
+	const void *ptr;
+	void *priv;
 };
 
 struct uci_context
@@ -335,10 +340,10 @@ struct uci_context
 	struct uci_list history_path;
 
 	/* private: */
-	int errno;
+	int err;
 	const char *func;
 	jmp_buf trap;
-	bool internal;
+	bool internal, nested;
 	char *buf;
 	int bufsz;
 };
@@ -372,14 +377,19 @@ struct uci_option
 {
 	struct uci_element e;
 	struct uci_section *section;
-	char *value;
+	enum uci_option_type type;
+	union {
+		struct uci_list list;
+		char *string;
+	} v;
 };
 
 enum uci_command {
 	UCI_CMD_ADD,
 	UCI_CMD_REMOVE,
 	UCI_CMD_CHANGE,
-	UCI_CMD_RENAME
+	UCI_CMD_RENAME,
+	UCI_CMD_LIST_ADD,
 };
 
 struct uci_history
@@ -390,16 +400,25 @@ struct uci_history
 	char *value;
 };
 
-#define UCI_BACKEND(_var, _name, ...)	\
-struct uci_backend _var = {		\
-	.e.list = {			\
-		.next = &_var.e.list,	\
-		.prev = &_var.e.list,	\
-	},				\
-	.e.name = _name,		\
-	.e.type = UCI_TYPE_BACKEND,	\
-	__VA_ARGS__			\
-}
+struct uci_ptr
+{
+	enum uci_type target;
+	enum {
+		UCI_LOOKUP_DONE =     (1 << 0),
+		UCI_LOOKUP_COMPLETE = (1 << 1),
+		UCI_LOOKUP_EXTENDED = (1 << 2),
+	} flags;
+
+	struct uci_package *p;
+	struct uci_section *s;
+	struct uci_option *o;
+	struct uci_element *last;
+
+	const char *package;
+	const char *section;
+	const char *option;
+	const char *value;
+};
 
 
 /* linked list handling */
@@ -413,8 +432,10 @@ struct uci_backend _var = {		\
  * @type:   the type of the container struct this is embedded in.
  * @member: the name of the member within the struct.
  */
+#ifndef container_of
 #define container_of(ptr, type, member) \
 	((type *) ((char *)ptr - offsetof(type,member)))
+#endif
 
 
 /**