D-Bus: dbus-marshal-validate.h Source File

D-Bus 1.10.22

dbus-marshal-validate.h
1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-marshal-validate.h Validation routines for marshaled data
3 *
4 * Copyright (C) 2005 Red Hat, Inc.
5 *
6 * Licensed under the Academic Free License version 2.1
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 */
23
24 #ifndef DBUS_MARSHAL_VALIDATE_H
25 #define DBUS_MARSHAL_VALIDATE_H
26
36 typedef enum
37 {
38 DBUS_VALIDATION_MODE_WE_TRUST_THIS_DATA_ABSOLUTELY,
39 DBUS_VALIDATION_MODE_DATA_IS_UNTRUSTED
40 } DBusValidationMode;
41
49 typedef enum
50 {
51 #define _DBUS_NEGATIVE_VALIDITY_COUNT 4
52 DBUS_VALIDITY_UNKNOWN_OOM_ERROR = -4,
53 DBUS_INVALID_FOR_UNKNOWN_REASON = -3,
54 DBUS_VALID_BUT_INCOMPLETE = -2,
55 DBUS_VALIDITY_UNKNOWN = -1,
56 DBUS_VALID = 0,
57 DBUS_INVALID_UNKNOWN_TYPECODE = 1,
58 DBUS_INVALID_MISSING_ARRAY_ELEMENT_TYPE = 2,
59 DBUS_INVALID_SIGNATURE_TOO_LONG = 3, /* this one is impossible right now since
60 * you can't put a too-long value in a byte
61 */
62 DBUS_INVALID_EXCEEDED_MAXIMUM_ARRAY_RECURSION = 4,
63 DBUS_INVALID_EXCEEDED_MAXIMUM_STRUCT_RECURSION = 5,
64 DBUS_INVALID_STRUCT_ENDED_BUT_NOT_STARTED = 6,
65 DBUS_INVALID_STRUCT_STARTED_BUT_NOT_ENDED = 7,
66 DBUS_INVALID_STRUCT_HAS_NO_FIELDS = 8,
67 DBUS_INVALID_ALIGNMENT_PADDING_NOT_NUL = 9,
68 DBUS_INVALID_BOOLEAN_NOT_ZERO_OR_ONE = 10,
69 DBUS_INVALID_NOT_ENOUGH_DATA = 11,
70 DBUS_INVALID_TOO_MUCH_DATA = 12,
71 DBUS_INVALID_BAD_BYTE_ORDER = 13,
72 DBUS_INVALID_BAD_PROTOCOL_VERSION = 14,
73 DBUS_INVALID_BAD_MESSAGE_TYPE = 15,
74 DBUS_INVALID_BAD_SERIAL = 16,
75 DBUS_INVALID_INSANE_FIELDS_ARRAY_LENGTH = 17,
76 DBUS_INVALID_INSANE_BODY_LENGTH = 18,
77 DBUS_INVALID_MESSAGE_TOO_LONG = 19,
78 DBUS_INVALID_HEADER_FIELD_CODE = 20,
79 DBUS_INVALID_HEADER_FIELD_HAS_WRONG_TYPE = 21,
80 DBUS_INVALID_USES_LOCAL_INTERFACE = 22,
81 DBUS_INVALID_USES_LOCAL_PATH = 23,
82 DBUS_INVALID_HEADER_FIELD_APPEARS_TWICE = 24,
83 DBUS_INVALID_BAD_DESTINATION = 25,
84 DBUS_INVALID_BAD_INTERFACE = 26,
85 DBUS_INVALID_BAD_MEMBER = 27,
86 DBUS_INVALID_BAD_ERROR_NAME = 28,
87 DBUS_INVALID_BAD_SENDER = 29,
88 DBUS_INVALID_MISSING_PATH = 30,
89 DBUS_INVALID_MISSING_INTERFACE = 31,
90 DBUS_INVALID_MISSING_MEMBER = 32,
91 DBUS_INVALID_MISSING_ERROR_NAME = 33,
92 DBUS_INVALID_MISSING_REPLY_SERIAL = 34,
93 DBUS_INVALID_LENGTH_OUT_OF_BOUNDS = 35,
94 DBUS_INVALID_ARRAY_LENGTH_EXCEEDS_MAXIMUM = 36,
95 DBUS_INVALID_BAD_PATH = 37,
96 DBUS_INVALID_SIGNATURE_LENGTH_OUT_OF_BOUNDS = 38,
97 DBUS_INVALID_BAD_UTF8_IN_STRING = 39,
98 DBUS_INVALID_ARRAY_LENGTH_INCORRECT = 40,
99 DBUS_INVALID_VARIANT_SIGNATURE_LENGTH_OUT_OF_BOUNDS = 41,
100 DBUS_INVALID_VARIANT_SIGNATURE_BAD = 42,
101 DBUS_INVALID_VARIANT_SIGNATURE_EMPTY = 43,
102 DBUS_INVALID_VARIANT_SIGNATURE_SPECIFIES_MULTIPLE_VALUES = 44,
103 DBUS_INVALID_VARIANT_SIGNATURE_MISSING_NUL = 45,
104 DBUS_INVALID_STRING_MISSING_NUL = 46,
105 DBUS_INVALID_SIGNATURE_MISSING_NUL = 47,
106 DBUS_INVALID_EXCEEDED_MAXIMUM_DICT_ENTRY_RECURSION = 48,
107 DBUS_INVALID_DICT_ENTRY_ENDED_BUT_NOT_STARTED = 49,
108 DBUS_INVALID_DICT_ENTRY_STARTED_BUT_NOT_ENDED = 50,
109 DBUS_INVALID_DICT_ENTRY_HAS_NO_FIELDS = 51,
110 DBUS_INVALID_DICT_ENTRY_HAS_ONLY_ONE_FIELD = 52,
111 DBUS_INVALID_DICT_ENTRY_HAS_TOO_MANY_FIELDS = 53,
112 DBUS_INVALID_DICT_ENTRY_NOT_INSIDE_ARRAY = 54,
113 DBUS_INVALID_DICT_KEY_MUST_BE_BASIC_TYPE = 55,
114 DBUS_INVALID_MISSING_UNIX_FDS = 56,
115 DBUS_INVALID_NESTED_TOO_DEEPLY = 57,
116 DBUS_VALIDITY_LAST
117 } DBusValidity;
118
119 DBUS_PRIVATE_EXPORT
120 DBusValidity _dbus_validate_signature_with_reason (const DBusString *type_str,
121 int type_pos,
122 int len);
123 DBUS_PRIVATE_EXPORT
124 DBusValidity _dbus_validate_body_with_reason (const DBusString *expected_signature,
125 int expected_signature_start,
126 int byte_order,
127 int *bytes_remaining,
128 const DBusString *value_str,
129 int value_pos,
130 int len);
131
132 const char *_dbus_validity_to_error_message (DBusValidity validity);
133
134 DBUS_PRIVATE_EXPORT
135 dbus_bool_t _dbus_validate_path (const DBusString *str,
136 int start,
137 int len);
138 DBUS_PRIVATE_EXPORT
139 dbus_bool_t _dbus_validate_interface (const DBusString *str,
140 int start,
141 int len);
142 DBUS_PRIVATE_EXPORT
143 dbus_bool_t _dbus_validate_member (const DBusString *str,
144 int start,
145 int len);
146 DBUS_PRIVATE_EXPORT
147 dbus_bool_t _dbus_validate_error_name (const DBusString *str,
148 int start,
149 int len);
150 DBUS_PRIVATE_EXPORT
151 dbus_bool_t _dbus_validate_bus_name (const DBusString *str,
152 int start,
153 int len);
154 DBUS_PRIVATE_EXPORT
155 dbus_bool_t _dbus_validate_bus_namespace (const DBusString *str,
156 int start,
157 int len);
158 DBUS_PRIVATE_EXPORT
159 dbus_bool_t _dbus_validate_signature (const DBusString *str,
160 int start,
161 int len);
162 /* just to have a name consistent with the above: */
163 #define _dbus_validate_utf8(s,b,e) _dbus_string_validate_utf8 (s, b, e)
164
165 #ifdef DBUS_DISABLE_CHECKS
166
167 /* Be sure they don't exist, since we don't want to use them outside of checks
168 * and so we want the compile failure.
169 */
170 #define DECLARE_DBUS_NAME_CHECK(what)
171 #define DEFINE_DBUS_NAME_CHECK(what)
172
173 #else /* !DBUS_DISABLE_CHECKS */
174
178 #define DECLARE_DBUS_NAME_CHECK(what) \
179 dbus_bool_t _dbus_check_is_valid_##what (const char *name)
180
183 #define DEFINE_DBUS_NAME_CHECK(what) \
184 dbus_bool_t \
185 _dbus_check_is_valid_##what (const char *name) \
186 { \
187 DBusString str; \
188 \
189 if (name == NULL) \
190 return FALSE; \
191 \
192 _dbus_string_init_const (&str, name); \
193 return _dbus_validate_##what (&str, 0, \
194 _dbus_string_get_length (&str)); \
195 }
196 #endif /* !DBUS_DISABLE_CHECKS */
197
199 DECLARE_DBUS_NAME_CHECK(path);
201 DECLARE_DBUS_NAME_CHECK(interface);
203 DECLARE_DBUS_NAME_CHECK(member);
205 DECLARE_DBUS_NAME_CHECK(error_name);
207 DECLARE_DBUS_NAME_CHECK(bus_name);
209 DECLARE_DBUS_NAME_CHECK(signature);
211 DECLARE_DBUS_NAME_CHECK(utf8);
212
215 #endif /* DBUS_MARSHAL_VALIDATE_H */
_dbus_validate_body_with_reason
DBusValidity _dbus_validate_body_with_reason(const DBusString *expected_signature, int expected_signature_start, int byte_order, int *bytes_remaining, const DBusString *value_str, int value_pos, int len)
Verifies that the range of value_str from value_pos to value_end is a legitimate value of type expect...
Definition: dbus-marshal-validate.c:703
DBUS_INVALID_TOO_MUCH_DATA
trailing junk makes it invalid
Definition: dbus-marshal-validate.h:70
_dbus_validate_interface
dbus_bool_t _dbus_validate_interface(const DBusString *str, int start, int len)
Checks that the given range of the string is a valid interface name in the D-Bus protocol.
Definition: dbus-marshal-validate.c:921
DBusValidationMode
DBusValidationMode
This is used rather than a bool for high visibility.
Definition: dbus-marshal-validate.h:36
DBusValidity
DBusValidity
This is primarily used in unit testing, so we can verify that each invalid message is invalid for the...
Definition: dbus-marshal-validate.h:49
_dbus_validate_member
dbus_bool_t _dbus_validate_member(const DBusString *str, int start, int len)
Checks that the given range of the string is a valid member name in the D-Bus protocol.
Definition: dbus-marshal-validate.c:997
_dbus_validate_path
dbus_bool_t _dbus_validate_path(const DBusString *str, int start, int len)
Checks that the given range of the string is a valid object path name in the D-Bus protocol...
Definition: dbus-marshal-validate.c:785
_dbus_validate_error_name
dbus_bool_t _dbus_validate_error_name(const DBusString *str, int start, int len)
Checks that the given range of the string is a valid error name in the D-Bus protocol.
Definition: dbus-marshal-validate.c:1058
DBusString
Definition: dbus-string.h:42
_dbus_validate_signature
dbus_bool_t _dbus_validate_signature(const DBusString *str, int start, int len)
Checks that the given range of the string is a valid message type signature in the D-Bus protocol...
Definition: dbus-marshal-validate.c:1228
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition: dbus-types.h:35
DBUS_VALIDITY_UNKNOWN_OOM_ERROR
can&#39;t determine validity due to OOM
Definition: dbus-marshal-validate.h:52
_dbus_validate_bus_namespace
dbus_bool_t _dbus_validate_bus_namespace(const DBusString *str, int start, int len)
Checks that the given range of the string is a prefix of a valid bus name in the D-Bus protocol...
Definition: dbus-marshal-validate.c:1208
_dbus_validate_bus_name
dbus_bool_t _dbus_validate_bus_name(const DBusString *str, int start, int len)
Checks that the given range of the string is a valid bus name in the D-Bus protocol.
Definition: dbus-marshal-validate.c:1187
DBUS_VALID
the data is valid
Definition: dbus-marshal-validate.h:56
_dbus_validate_signature_with_reason
DBusValidity _dbus_validate_signature_with_reason(const DBusString *type_str, int type_pos, int len)
Verifies that the range of type_str from type_pos to type_end is a valid signature.
Definition: dbus-marshal-validate.c:51
DECLARE_DBUS_NAME_CHECK
#define DECLARE_DBUS_NAME_CHECK(what)
A name check is used in _dbus_return_if_fail(), it&#39;s not suitable for validating untrusted data...
Definition: dbus-marshal-validate.h:178