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1 /*
2  * WPA Supplicant / dbus-based control interface
3  * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #ifndef DBUS_DICT_HELPERS_H
10 #define DBUS_DICT_HELPERS_H
11 
12 #include "wpabuf.h"
13 
14 /*
15  * Adding a dict to a DBusMessage
16  */
17 
18 dbus_bool_t wpa_dbus_dict_open_write(DBusMessageIter *iter,
19 				     DBusMessageIter *iter_dict);
20 
21 dbus_bool_t wpa_dbus_dict_close_write(DBusMessageIter *iter,
22 				      DBusMessageIter *iter_dict);
23 
24 const char * wpa_dbus_type_as_string(const int type);
25 
26 dbus_bool_t wpa_dbus_dict_append_string(DBusMessageIter *iter_dict,
27 					const char *key, const char *value);
28 
29 dbus_bool_t wpa_dbus_dict_append_bool(DBusMessageIter *iter_dict,
30 				      const char *key,
31 				      const dbus_bool_t value);
32 
33 dbus_bool_t wpa_dbus_dict_append_int16(DBusMessageIter *iter_dict,
34 				       const char *key,
35 				       const dbus_int16_t value);
36 
37 dbus_bool_t wpa_dbus_dict_append_uint16(DBusMessageIter *iter_dict,
38 					const char *key,
39 					const dbus_uint16_t value);
40 
41 dbus_bool_t wpa_dbus_dict_append_int32(DBusMessageIter *iter_dict,
42 				       const char *key,
43 				       const dbus_int32_t value);
44 
45 dbus_bool_t wpa_dbus_dict_append_uint32(DBusMessageIter *iter_dict,
46 					const char *key,
47 					const dbus_uint32_t value);
48 
49 dbus_bool_t wpa_dbus_dict_append_object_path(DBusMessageIter *iter_dict,
50 					     const char *key,
51 					     const char *value);
52 
53 dbus_bool_t wpa_dbus_dict_append_byte_array(DBusMessageIter *iter_dict,
54 					    const char *key,
55 					    const char *value,
56 					    const dbus_uint32_t value_len);
57 
58 /* Manual construction and addition of array elements */
59 dbus_bool_t wpa_dbus_dict_begin_array(DBusMessageIter *iter_dict,
60 				      const char *key, const char *type,
61 				      DBusMessageIter *iter_dict_entry,
62 				      DBusMessageIter *iter_dict_val,
63 				      DBusMessageIter *iter_array);
64 
65 dbus_bool_t wpa_dbus_dict_begin_string_array(DBusMessageIter *iter_dict,
66 					     const char *key,
67 					     DBusMessageIter *iter_dict_entry,
68 					     DBusMessageIter *iter_dict_val,
69 					     DBusMessageIter *iter_array);
70 
71 dbus_bool_t wpa_dbus_dict_string_array_add_element(DBusMessageIter *iter_array,
72 						   const char *elem);
73 
74 dbus_bool_t wpa_dbus_dict_bin_array_add_element(DBusMessageIter *iter_array,
75 						const u8 *value,
76 						size_t value_len);
77 
78 dbus_bool_t wpa_dbus_dict_end_array(DBusMessageIter *iter_dict,
79 				    DBusMessageIter *iter_dict_entry,
80 				    DBusMessageIter *iter_dict_val,
81 				    DBusMessageIter *iter_array);
82 
83 static inline dbus_bool_t
wpa_dbus_dict_end_string_array(DBusMessageIter * iter_dict,DBusMessageIter * iter_dict_entry,DBusMessageIter * iter_dict_val,DBusMessageIter * iter_array)84 wpa_dbus_dict_end_string_array(DBusMessageIter *iter_dict,
85 			       DBusMessageIter *iter_dict_entry,
86 			       DBusMessageIter *iter_dict_val,
87 			       DBusMessageIter *iter_array)
88 {
89 	return wpa_dbus_dict_end_array(iter_dict, iter_dict_entry,
90 				       iter_dict_val, iter_array);
91 }
92 
93 /* Convenience function to add a whole string list */
94 dbus_bool_t wpa_dbus_dict_append_string_array(DBusMessageIter *iter_dict,
95 					      const char *key,
96 					      const char **items,
97 					      const dbus_uint32_t num_items);
98 
99 dbus_bool_t wpa_dbus_dict_append_wpabuf_array(DBusMessageIter *iter_dict,
100 					      const char *key,
101 					      const struct wpabuf **items,
102 					      const dbus_uint32_t num_items);
103 
104 /*
105  * Reading a dict from a DBusMessage
106  */
107 
108 /*
109  * Used only in struct wpa_dbus_dict_entry::array_type internally to identify
110  * special binary array case.
111  */
112 #define WPAS_DBUS_TYPE_BINARRAY ((int) '@')
113 
114 struct wpa_dbus_dict_entry {
115 	int type;         /** the dbus type of the dict entry's value */
116 	int array_type;   /** the dbus type of the array elements if the dict
117 			      entry value contains an array, or the special
118 			      WPAS_DBUS_TYPE_BINARRAY */
119 	const char *key;  /** key of the dict entry */
120 
121 	/** Possible values of the property */
122 	union {
123 		char *str_value;
124 		char byte_value;
125 		dbus_bool_t bool_value;
126 		dbus_int16_t int16_value;
127 		dbus_uint16_t uint16_value;
128 		dbus_int32_t int32_value;
129 		dbus_uint32_t uint32_value;
130 		dbus_int64_t int64_value;
131 		dbus_uint64_t uint64_value;
132 		double double_value;
133 		char *bytearray_value;
134 		char **strarray_value;
135 		struct wpabuf **binarray_value;
136 	};
137 	dbus_uint32_t array_len; /** length of the array if the dict entry's
138 				     value contains an array */
139 };
140 
141 dbus_bool_t wpa_dbus_dict_open_read(DBusMessageIter *iter,
142 				    DBusMessageIter *iter_dict,
143 				    DBusError *error);
144 
145 dbus_bool_t wpa_dbus_dict_get_entry(DBusMessageIter *iter_dict,
146 				    struct wpa_dbus_dict_entry *entry);
147 
148 dbus_bool_t wpa_dbus_dict_has_dict_entry(DBusMessageIter *iter_dict);
149 
150 void wpa_dbus_dict_entry_clear(struct wpa_dbus_dict_entry *entry);
151 
152 #endif  /* DBUS_DICT_HELPERS_H */
153