291 lines
9.5 KiB
C
291 lines
9.5 KiB
C
/* $Id: pcp_msg_struct.h $ */
|
|
/* MiniUPnP project
|
|
* Website : http://miniupnp.free.fr/
|
|
* Author : Peter Tatrai
|
|
|
|
Copyright (c) 2013 by Cisco Systems, Inc.
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
* The name of the author may not be used to endorse or promote products
|
|
derived from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#define PCP_OPCODE_ANNOUNCE 0
|
|
#define PCP_OPCODE_MAP 1
|
|
#define PCP_OPCODE_PEER 2
|
|
#ifdef PCP_SADSCP
|
|
#define PCP_OPCODE_SADSCP 3
|
|
#endif
|
|
|
|
/* Possible response codes sent by server, as a result of client request*/
|
|
#define PCP_SUCCESS 0
|
|
|
|
#define PCP_ERR_UNSUPP_VERSION 1
|
|
/** The version number at the start of the PCP Request
|
|
* header is not recognized by this PCP server. This is a long
|
|
* lifetime error. This document describes PCP version 2.
|
|
*/
|
|
|
|
#define PCP_ERR_NOT_AUTHORIZED 2
|
|
/**The requested operation is disabled for this PCP
|
|
* client, or the PCP client requested an operation that cannot be
|
|
* fulfilled by the PCP server's security policy. This is a long
|
|
* lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_MALFORMED_REQUEST 3
|
|
/**The request could not be successfully parsed.
|
|
* This is a long lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_UNSUPP_OPCODE 4
|
|
/** Unsupported Opcode. This is a long lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_UNSUPP_OPTION 5
|
|
/**Unsupported Option. This error only occurs if the
|
|
* Option is in the mandatory-to-process range. This is a long
|
|
* lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_MALFORMED_OPTION 6
|
|
/**Malformed Option (e.g., appears too many times,
|
|
* invalid length). This is a long lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_NETWORK_FAILURE 7
|
|
/**The PCP server or the device it controls are
|
|
* experiencing a network failure of some sort (e.g., has not
|
|
* obtained an External IP address). This is a short lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_NO_RESOURCES 8
|
|
/**Request is well-formed and valid, but the server has
|
|
* insufficient resources to complete the requested operation at this
|
|
* time. For example, the NAT device cannot create more mappings at
|
|
* this time, is short of CPU cycles or memory, or is unable to
|
|
* handle the request due to some other temporary condition. The
|
|
* same request may succeed in the future. This is a system-wide
|
|
* error, different from USER_EX_QUOTA. This can be used as a catch-
|
|
* all error, should no other error message be suitable. This is a
|
|
* short lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_UNSUPP_PROTOCOL 9
|
|
/**Unsupported transport protocol, e.g. SCTP in a
|
|
* NAT that handles only UDP and TCP. This is a long lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_USER_EX_QUOTA 10
|
|
/** This attempt to create a new mapping would exceed
|
|
* this subscriber's port quota. This is a short lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_CANNOT_PROVIDE_EXTERNAL 11
|
|
/** The suggested external port and/or
|
|
* external address cannot be provided. This error MUST only be
|
|
* returned for:
|
|
* * MAP requests that included the PREFER_FAILURE Option
|
|
* (normal MAP requests will return an available external port)
|
|
* * MAP requests for the SCTP protocol (PREFER_FAILURE is implied)
|
|
* * PEER requests
|
|
*/
|
|
|
|
#define PCP_ERR_ADDRESS_MISMATCH 12
|
|
/** The source IP address of the request packet does
|
|
* not match the contents of the PCP Client's IP Address field, due
|
|
* to an unexpected NAT on the path between the PCP client and the
|
|
* PCP-controlled NAT or firewall. This is a long lifetime error.
|
|
*/
|
|
|
|
#define PCP_ERR_EXCESSIVE_REMOTE_PEERS 13
|
|
/** The PCP server was not able to create the
|
|
* filters in this request. This result code MUST only be returned
|
|
* if the MAP request contained the FILTER Option. See Section 13.3
|
|
* for processing information. This is a long lifetime error.
|
|
*/
|
|
|
|
typedef enum pcp_options {
|
|
PCP_OPTION_3RD_PARTY = 1,
|
|
PCP_OPTION_PREF_FAIL = 2,
|
|
PCP_OPTION_FILTER = 3,
|
|
#ifdef PCP_FLOWP
|
|
PCP_OPTION_FLOW_PRIORITY = 4, /*TODO: change it to correct value*/
|
|
#endif
|
|
} pcp_options_t;
|
|
|
|
|
|
#ifdef WIN32
|
|
#pragma warning (push)
|
|
#pragma warning (disable:4200)
|
|
#endif // WIN32
|
|
|
|
#pragma pack(push, 1)
|
|
|
|
/* PCP common request header*/
|
|
typedef struct pcp_request {
|
|
uint8_t ver;
|
|
uint8_t r_opcode;
|
|
uint16_t reserved;
|
|
uint32_t req_lifetime;
|
|
uint32_t ip[4]; /* ipv4 will be represented
|
|
by the ipv4 mapped ipv6 */
|
|
uint8_t next_data[0];
|
|
} pcp_request_t;
|
|
|
|
/* PCP common response header*/
|
|
typedef struct pcp_response {
|
|
uint8_t ver;
|
|
uint8_t r_opcode; /* R indicates Request (0) or Response (1)
|
|
Opcode is 7 bit value specifying operation MAP or PEER */
|
|
uint8_t reserved; /* reserved bits, must be 0 on transmission and must be ignored on reception */
|
|
uint8_t result_code; /* */
|
|
uint32_t lifetime; /* an unsigned 32-bit integer, in seconds {0, 2^32-1}*/
|
|
uint32_t epochtime; /* epoch indicates how long has PCP server had its current mappings
|
|
it increases by 1 every second */
|
|
uint32_t reserved1[3];/* For requests that were successfully parsed this must be sent as 0 */
|
|
uint8_t next_data[0];
|
|
} pcp_response_t;
|
|
|
|
|
|
typedef struct pcp_options_hdr {
|
|
uint8_t code; /* Most significant bit indicates if this option is mandatory (0) or optional (1) */
|
|
uint8_t reserved; /* MUST be set to 0 on transmission and MUST be ignored on reception */
|
|
uint16_t len; /* indicates the length of the enclosed data in octets (see RFC) */
|
|
uint8_t next_data[0]; /* */
|
|
} pcp_options_hdr_t;
|
|
|
|
/* same for both request and response */
|
|
typedef struct pcp_map_v2 {
|
|
uint32_t nonce[3];
|
|
uint8_t protocol;
|
|
uint8_t reserved[3];
|
|
uint16_t int_port;
|
|
uint16_t ext_port;
|
|
uint32_t ext_ip[4]; /* ipv4 will be represented
|
|
by the ipv4 mapped ipv6 */
|
|
uint8_t next_data[0];
|
|
} pcp_map_v2_t;
|
|
|
|
/* same for both request and response */
|
|
typedef struct pcp_map_v1 {
|
|
uint8_t protocol;
|
|
uint8_t reserved[3];
|
|
uint16_t int_port;
|
|
uint16_t ext_port;
|
|
uint32_t ext_ip[4]; /* ipv4 will be represented
|
|
by the ipv4 mapped ipv6 */
|
|
uint8_t next_data[0];
|
|
} pcp_map_v1_t;
|
|
|
|
/* same for both request and response */
|
|
typedef struct pcp_peer_v1 {
|
|
uint8_t protocol;
|
|
uint8_t reserved[3];
|
|
uint16_t int_port;
|
|
uint16_t ext_port;
|
|
uint32_t ext_ip[4]; /* ipv4 will be represented
|
|
by the ipv4 mapped ipv6 */
|
|
uint16_t peer_port;
|
|
uint16_t reserved1;
|
|
uint32_t peer_ip[4];
|
|
uint8_t next_data[0];
|
|
} pcp_peer_v1_t;
|
|
|
|
/* same for both request and response */
|
|
typedef struct pcp_peer_v2 {
|
|
uint32_t nonce[3];
|
|
uint8_t protocol;
|
|
uint8_t reserved[3];
|
|
uint16_t int_port;
|
|
uint16_t ext_port;
|
|
uint32_t ext_ip[4]; /* ipv4 will be represented
|
|
by the ipv4 mapped ipv6 */
|
|
uint16_t peer_port;
|
|
uint16_t reserved1;
|
|
uint32_t peer_ip[4];
|
|
uint8_t next_data[0];
|
|
} pcp_peer_v2_t;
|
|
|
|
#ifdef PCP_SADSCP
|
|
typedef struct pcp_sadscp_req {
|
|
uint32_t nonce[3];
|
|
uint8_t tolerance_fields;
|
|
uint8_t app_name_length;
|
|
char app_name[0];
|
|
} pcp_sadscp_req_t;
|
|
|
|
typedef struct pcp_sadscp_resp {
|
|
uint32_t nonce[3];
|
|
#define PCP_SADSCP_MASK ((1<<6)-1)
|
|
uint8_t a_r_dscp_value;
|
|
uint8_t reserved[3];
|
|
} pcp_sadscp_resp_t;
|
|
#endif
|
|
|
|
typedef struct pcp_prefer_fail_option {
|
|
uint8_t option;
|
|
uint8_t reserved;
|
|
uint16_t len;
|
|
uint8_t next_data[0];
|
|
} pcp_prefer_fail_option_t;
|
|
|
|
typedef struct pcp_3rd_party_option{
|
|
uint8_t option;
|
|
uint8_t reserved;
|
|
uint16_t len;
|
|
uint32_t ip[4];
|
|
uint8_t next_data[0];
|
|
} pcp_3rd_party_option_t;
|
|
|
|
#ifdef PCP_FLOWP
|
|
typedef struct pcp_flow_priority_option{
|
|
uint8_t option;
|
|
uint8_t reserved;
|
|
uint16_t len;
|
|
uint8_t dscp_up;
|
|
uint8_t dscp_down;
|
|
#define PCP_DSCP_MASK ((1<<6)-1)
|
|
uint8_t reserved2;
|
|
/* most significant bit is used for response */
|
|
uint8_t response_bit;
|
|
uint8_t next_data[0];
|
|
} pcp_flow_priority_option_t;
|
|
#endif
|
|
|
|
typedef struct pcp_filter_option {
|
|
uint8_t option;
|
|
uint8_t reserved1;
|
|
uint16_t len;
|
|
uint8_t reserved2;
|
|
uint8_t prefix_len;
|
|
uint16_t peer_port;
|
|
uint32_t peer_ip[4];
|
|
}pcp_filter_option_t;
|
|
|
|
#pragma pack(pop)
|
|
|
|
#ifdef WIN32
|
|
#pragma warning (pop)
|
|
#endif // WIN32
|