D-Bus  1.13.16
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 
27 #include <dbus/dbus-string.h>
28 
38 typedef enum
39 {
40  DBUS_VALIDATION_MODE_WE_TRUST_THIS_DATA_ABSOLUTELY,
41  DBUS_VALIDATION_MODE_DATA_IS_UNTRUSTED
43 
51 typedef enum
52 {
53 #define _DBUS_NEGATIVE_VALIDITY_COUNT 4
55  DBUS_INVALID_FOR_UNKNOWN_REASON = -3,
56  DBUS_VALID_BUT_INCOMPLETE = -2,
57  DBUS_VALIDITY_UNKNOWN = -1,
58  DBUS_VALID = 0,
59  DBUS_INVALID_UNKNOWN_TYPECODE = 1,
60  DBUS_INVALID_MISSING_ARRAY_ELEMENT_TYPE = 2,
61  DBUS_INVALID_SIGNATURE_TOO_LONG = 3, /* this one is impossible right now since
62  * you can't put a too-long value in a byte
63  */
64  DBUS_INVALID_EXCEEDED_MAXIMUM_ARRAY_RECURSION = 4,
65  DBUS_INVALID_EXCEEDED_MAXIMUM_STRUCT_RECURSION = 5,
66  DBUS_INVALID_STRUCT_ENDED_BUT_NOT_STARTED = 6,
67  DBUS_INVALID_STRUCT_STARTED_BUT_NOT_ENDED = 7,
68  DBUS_INVALID_STRUCT_HAS_NO_FIELDS = 8,
69  DBUS_INVALID_ALIGNMENT_PADDING_NOT_NUL = 9,
70  DBUS_INVALID_BOOLEAN_NOT_ZERO_OR_ONE = 10,
71  DBUS_INVALID_NOT_ENOUGH_DATA = 11,
73  DBUS_INVALID_BAD_BYTE_ORDER = 13,
74  DBUS_INVALID_BAD_PROTOCOL_VERSION = 14,
75  DBUS_INVALID_BAD_MESSAGE_TYPE = 15,
76  DBUS_INVALID_BAD_SERIAL = 16,
77  DBUS_INVALID_INSANE_FIELDS_ARRAY_LENGTH = 17,
78  DBUS_INVALID_INSANE_BODY_LENGTH = 18,
79  DBUS_INVALID_MESSAGE_TOO_LONG = 19,
80  DBUS_INVALID_HEADER_FIELD_CODE = 20,
81  DBUS_INVALID_HEADER_FIELD_HAS_WRONG_TYPE = 21,
82  DBUS_INVALID_USES_LOCAL_INTERFACE = 22,
83  DBUS_INVALID_USES_LOCAL_PATH = 23,
84  DBUS_INVALID_HEADER_FIELD_APPEARS_TWICE = 24,
85  DBUS_INVALID_BAD_DESTINATION = 25,
86  DBUS_INVALID_BAD_INTERFACE = 26,
87  DBUS_INVALID_BAD_MEMBER = 27,
88  DBUS_INVALID_BAD_ERROR_NAME = 28,
89  DBUS_INVALID_BAD_SENDER = 29,
90  DBUS_INVALID_MISSING_PATH = 30,
91  DBUS_INVALID_MISSING_INTERFACE = 31,
92  DBUS_INVALID_MISSING_MEMBER = 32,
93  DBUS_INVALID_MISSING_ERROR_NAME = 33,
94  DBUS_INVALID_MISSING_REPLY_SERIAL = 34,
95  DBUS_INVALID_LENGTH_OUT_OF_BOUNDS = 35,
96  DBUS_INVALID_ARRAY_LENGTH_EXCEEDS_MAXIMUM = 36,
97  DBUS_INVALID_BAD_PATH = 37,
98  DBUS_INVALID_SIGNATURE_LENGTH_OUT_OF_BOUNDS = 38,
99  DBUS_INVALID_BAD_UTF8_IN_STRING = 39,
100  DBUS_INVALID_ARRAY_LENGTH_INCORRECT = 40,
101  DBUS_INVALID_VARIANT_SIGNATURE_LENGTH_OUT_OF_BOUNDS = 41,
102  DBUS_INVALID_VARIANT_SIGNATURE_BAD = 42,
103  DBUS_INVALID_VARIANT_SIGNATURE_EMPTY = 43,
104  DBUS_INVALID_VARIANT_SIGNATURE_SPECIFIES_MULTIPLE_VALUES = 44,
105  DBUS_INVALID_VARIANT_SIGNATURE_MISSING_NUL = 45,
106  DBUS_INVALID_STRING_MISSING_NUL = 46,
107  DBUS_INVALID_SIGNATURE_MISSING_NUL = 47,
108  DBUS_INVALID_EXCEEDED_MAXIMUM_DICT_ENTRY_RECURSION = 48,
109  DBUS_INVALID_DICT_ENTRY_ENDED_BUT_NOT_STARTED = 49,
110  DBUS_INVALID_DICT_ENTRY_STARTED_BUT_NOT_ENDED = 50,
111  DBUS_INVALID_DICT_ENTRY_HAS_NO_FIELDS = 51,
112  DBUS_INVALID_DICT_ENTRY_HAS_ONLY_ONE_FIELD = 52,
113  DBUS_INVALID_DICT_ENTRY_HAS_TOO_MANY_FIELDS = 53,
114  DBUS_INVALID_DICT_ENTRY_NOT_INSIDE_ARRAY = 54,
115  DBUS_INVALID_DICT_KEY_MUST_BE_BASIC_TYPE = 55,
116  DBUS_INVALID_MISSING_UNIX_FDS = 56,
117  DBUS_INVALID_NESTED_TOO_DEEPLY = 57,
118  DBUS_VALIDITY_LAST
119 } DBusValidity;
120 
121 DBUS_PRIVATE_EXPORT
123  int type_pos,
124  int len);
125 DBUS_PRIVATE_EXPORT
126 DBusValidity _dbus_validate_body_with_reason (const DBusString *expected_signature,
127  int expected_signature_start,
128  int byte_order,
129  int *bytes_remaining,
130  const DBusString *value_str,
131  int value_pos,
132  int len);
133 
134 const char *_dbus_validity_to_error_message (DBusValidity validity);
135 
136 DBUS_PRIVATE_EXPORT
138  int start,
139  int len);
140 DBUS_PRIVATE_EXPORT
142  int start,
143  int len);
144 DBUS_PRIVATE_EXPORT
146  int start,
147  int len);
148 DBUS_PRIVATE_EXPORT
150  int start,
151  int len);
152 DBUS_PRIVATE_EXPORT
154  int start,
155  int len);
156 DBUS_PRIVATE_EXPORT
158  int start,
159  int len);
160 /* just to have a name consistent with the above: */
161 #define _dbus_validate_utf8(s,b,e) _dbus_string_validate_utf8 (s, b, e)
162 
163 #ifdef DBUS_DISABLE_CHECKS
164 
165 /* Be sure they don't exist, since we don't want to use them outside of checks
166  * and so we want the compile failure.
167  */
168 #define DECLARE_DBUS_NAME_CHECK(what)
169 #define DEFINE_DBUS_NAME_CHECK(what)
170 
171 #else /* !DBUS_DISABLE_CHECKS */
172 
176 #define DECLARE_DBUS_NAME_CHECK(what) \
177 dbus_bool_t _dbus_check_is_valid_##what (const char *name)
178 
181 #define DEFINE_DBUS_NAME_CHECK(what) \
182 dbus_bool_t \
183 _dbus_check_is_valid_##what (const char *name) \
184 { \
185  DBusString str; \
186  \
187  if (name == NULL) \
188  return FALSE; \
189  \
190  _dbus_string_init_const (&str, name); \
191  return _dbus_validate_##what (&str, 0, \
192  _dbus_string_get_length (&str)); \
193 }
194 #endif /* !DBUS_DISABLE_CHECKS */
195 
199 DECLARE_DBUS_NAME_CHECK(interface);
203 DECLARE_DBUS_NAME_CHECK(error_name);
205 DECLARE_DBUS_NAME_CHECK(bus_name);
208 
211 #endif /* DBUS_MARSHAL_VALIDATE_H */
DBusValidationMode
DBusValidationMode
This is used rather than a bool for high visibility.
Definition: dbus-marshal-validate.h:38
DBUS_VALID
@ DBUS_VALID
the data is valid
Definition: dbus-marshal-validate.h:58
_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:708
_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:790
DECLARE_DBUS_NAME_CHECK
#define DECLARE_DBUS_NAME_CHECK(what)
A name check is used in _dbus_return_if_fail(), it's not suitable for validating untrusted data.
Definition: dbus-marshal-validate.h:176
_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:1194
DBusString
Definition: dbus-string.h:42
_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:1215
DBUS_INVALID_TOO_MUCH_DATA
@ DBUS_INVALID_TOO_MUCH_DATA
trailing junk makes it invalid
Definition: dbus-marshal-validate.h:72
_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:1004
_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:1065
DBUS_VALIDITY_UNKNOWN_OOM_ERROR
@ DBUS_VALIDITY_UNKNOWN_OOM_ERROR
can't determine validity due to OOM
Definition: dbus-marshal-validate.h:54
_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:928
_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
dbus_bool_t
dbus_uint32_t dbus_bool_t
Definition: dbus-types.h:35
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:51