2 * This file is part of the Nice GLib ICE library.
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5 * Contact: Youness Alaoui
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37 #ifndef _STUN_CONSTANTS_H
38 #define _STUN_CONSTANTS_H
42 * SECTION:stunconstants
43 * @short_description: STUN constants
44 * @include: stun/constants.h
47 * Various constants defining parts of the STUN and TURN protocols and
48 * on-the-wire packet formats.
52 * STUN_ATTRIBUTE_LENGTH_LEN:
54 * Length of the length field of a STUN attribute (in bytes).
57 * STUN_ATTRIBUTE_LENGTH_POS:
59 * Offset of the length field of a STUN attribute (in bytes).
62 * STUN_ATTRIBUTE_TYPE_LEN:
64 * Length of the type field of a STUN attribute (in bytes).
67 * STUN_ATTRIBUTE_TYPE_POS:
69 * Offset of the type field of a STUN attribute (in bytes).
72 * STUN_ATTRIBUTE_VALUE_POS:
74 * Offset of the value field of a STUN attribute (in bytes).
79 * Length of the ID field of a STUN message (in bytes).
84 * Magic cookie value used to identify STUN messages.
89 * Magic cookie value used to identify TURN messages.
92 * STUN_MAX_MESSAGE_SIZE_IPV4:
94 * Maximum size of a STUN message sent over IPv4 (in bytes).
97 * STUN_MAX_MESSAGE_SIZE_IPV6:
99 * Maximum size of a STUN message sent over IPv6 (in bytes).
102 * STUN_MESSAGE_ATTRIBUTES_POS:
104 * Offset of the attributes of a STUN message (in bytes).
107 * STUN_MESSAGE_HEADER_LENGTH:
109 * Total length of a STUN message header (in bytes).
112 * STUN_MESSAGE_LENGTH_LEN:
114 * Length of the length field of a STUN message (in bytes).
117 * STUN_MESSAGE_LENGTH_POS:
119 * Offset of the length field of a STUN message (in bytes).
122 * STUN_MESSAGE_TRANS_ID_LEN:
124 * Length of the transaction ID field of a STUN message (in bytes).
127 * STUN_MESSAGE_TRANS_ID_POS:
129 * Offset of the transaction ID field of a STUN message (in bytes).
132 * STUN_MESSAGE_TYPE_LEN:
134 * Length of the type field of a STUN message (in bytes).
137 * STUN_MESSAGE_TYPE_POS:
139 * Offset of the type field of a STUN message (in bytes).
142 #define STUN_MESSAGE_TYPE_POS 0
143 #define STUN_MESSAGE_TYPE_LEN 2
144 #define STUN_MESSAGE_LENGTH_POS \
145 (STUN_MESSAGE_TYPE_POS + STUN_MESSAGE_TYPE_LEN)
146 #define STUN_MESSAGE_LENGTH_LEN 2
147 #define STUN_MESSAGE_TRANS_ID_POS \
148 (STUN_MESSAGE_LENGTH_POS + STUN_MESSAGE_LENGTH_LEN)
149 #define STUN_MESSAGE_TRANS_ID_LEN 16
150 #define STUN_MESSAGE_ATTRIBUTES_POS \
151 (STUN_MESSAGE_TRANS_ID_POS + STUN_MESSAGE_TRANS_ID_LEN)
153 #define STUN_MESSAGE_HEADER_LENGTH STUN_MESSAGE_ATTRIBUTES_POS
155 #define STUN_ATTRIBUTE_TYPE_POS 0
156 #define STUN_ATTRIBUTE_TYPE_LEN 2
157 #define STUN_ATTRIBUTE_LENGTH_POS \
158 (STUN_ATTRIBUTE_TYPE_POS + STUN_ATTRIBUTE_TYPE_LEN)
159 #define STUN_ATTRIBUTE_LENGTH_LEN 2
160 #define STUN_ATTRIBUTE_VALUE_POS \
161 (STUN_ATTRIBUTE_LENGTH_POS + STUN_ATTRIBUTE_LENGTH_LEN)
164 * STUN_ATTRIBUTE_HEADER_LENGTH:
166 * Length of a single STUN attribute header (in bytes).
168 #define STUN_ATTRIBUTE_HEADER_LENGTH STUN_ATTRIBUTE_VALUE_POS
171 #define STUN_MAX_MESSAGE_SIZE_IPV4 576
172 #define STUN_MAX_MESSAGE_SIZE_IPV6 1280
173 /* #define STUN_MAX_MESSAGE_SIZE STUN_MAX_MESSAGE_SIZE_IPV4 */
175 #define STUN_ID_LEN 16
178 * STUN_AGENT_MAX_SAVED_IDS:
180 * Maximum number of simultaneously ongoing STUN transactions.
182 #define STUN_AGENT_MAX_SAVED_IDS 200
185 * STUN_AGENT_MAX_UNKNOWN_ATTRIBUTES:
187 * Maximum number of unknown attribute which can be handled in a single STUN
190 #define STUN_AGENT_MAX_UNKNOWN_ATTRIBUTES 256
192 #define STUN_MAGIC_COOKIE 0x2112A442
193 #define TURN_MAGIC_COOKIE 0x72c64bc6
196 #define TRUE (1 == 1)
200 #define FALSE (0 == 1)
203 #endif /* _STUN_CONSTANTS_H */