forked from the-tcpdump-group/tcpdump
/
mptcp.h
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/
mptcp.h
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/**
* Copyright (c) 2012
*
* Gregory Detal <gregory.detal@uclouvain.be>
* Christoph Paasch <christoph.paasch@uclouvain.be>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 MPTCP_SUB_CAPABLE 0x0
#define MPTCP_SUB_JOIN 0x1
#define MPTCP_SUB_DSS 0x2
#define MPTCP_SUB_ADD_ADDR 0x3
#define MPTCP_SUB_REMOVE_ADDR 0x4
#define MPTCP_SUB_PRIO 0x5
#define MPTCP_SUB_FAIL 0x6
#define MPTCP_SUB_FCLOSE 0x7
struct mptcp_option {
u_int8_t kind;
u_int8_t len;
u_int8_t sub_etc; /* subtype upper 4 bits, other stuff lower 4 bits */
};
#define MPTCP_OPT_SUBTYPE(sub_etc) (((sub_etc) >> 4) & 0xF)
struct mp_capable {
u_int8_t kind;
u_int8_t len;
u_int8_t sub_ver;
u_int8_t flags;
u_int8_t sender_key[8];
u_int8_t receiver_key[8];
};
#define MP_CAPABLE_OPT_VERSION(sub_ver) (((sub_ver) >> 0) & 0xF)
#define MP_CAPABLE_C 0x80
#define MP_CAPABLE_S 0x01
struct mp_join {
u_int8_t kind;
u_int8_t len;
u_int8_t sub_b;
u_int8_t addr_id;
union {
struct {
u_int8_t token[4];
u_int8_t nonce[4];
} syn;
struct {
u_int8_t mac[8];
u_int8_t nonce[4];
} synack;
struct {
u_int8_t mac[20];
} ack;
} u;
};
#define MP_JOIN_B 0x01
struct mp_dss {
u_int8_t kind;
u_int8_t len;
u_int8_t sub;
u_int8_t flags;
};
#define MP_DSS_F 0x10
#define MP_DSS_m 0x08
#define MP_DSS_M 0x04
#define MP_DSS_a 0x02
#define MP_DSS_A 0x01
struct mp_add_addr {
u_int8_t kind;
u_int8_t len;
u_int8_t sub_ipver;
u_int8_t addr_id;
union {
struct {
u_int8_t addr[4];
u_int8_t port[2];
} v4;
struct {
u_int8_t addr[16];
u_int8_t port[2];
} v6;
} u;
};
#define MP_ADD_ADDR_IPVER(sub_ipver) (((sub_ipver) >> 0) & 0xF)
struct mp_remove_addr {
u_int8_t kind;
u_int8_t len;
u_int8_t sub;
/* list of addr_id */
u_int8_t addrs_id;
};
struct mp_fail {
u_int8_t kind;
u_int8_t len;
u_int8_t sub;
u_int8_t resv;
u_int8_t data_seq[8];
};
struct mp_close {
u_int8_t kind;
u_int8_t len;
u_int8_t sub;
u_int8_t rsv;
u_int8_t key[8];
};
struct mp_prio {
u_int8_t kind;
u_int8_t len;
u_int8_t sub_b;
u_int8_t addr_id;
};
#define MP_PRIO_B 0x01