mirror of
https://github.com/the-tcpdump-group/tcpdump.git
synced 2024-11-23 18:14:29 +08:00
e379a5690f
Introduce struct of_msgtypeinfo and convert all the case blocks in of10_message_print() and of13_message_print() together with ofpt_str[] and the associated wrapper functions into array elements of this type. Convert the code remaining of both functions into a short generic of_message_print() function. Refer to the latest OpenFlow 1.3 PDF and update comments to use section numbers from that document.
91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2013 The TCPDUMP project
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 HOLDER 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.
|
|
*/
|
|
|
|
/* OpenFlow: protocol between controller and datapath. */
|
|
|
|
/* for netdissect_options */
|
|
#include "netdissect.h"
|
|
|
|
#define OF_FWD(n) { \
|
|
cp += (n); \
|
|
len -= (n); \
|
|
}
|
|
|
|
#define OF_CHK_FWD(n) { \
|
|
ND_TCHECK_LEN(cp, (n)); \
|
|
cp += (n); \
|
|
len -= (n); \
|
|
}
|
|
|
|
#define OF_VER_1_0 0x01U
|
|
#define OF_VER_1_1 0x02U
|
|
#define OF_VER_1_2 0x03U
|
|
#define OF_VER_1_3 0x04U
|
|
#define OF_VER_1_4 0x05U
|
|
#define OF_VER_1_5 0x06U
|
|
|
|
#define OF_HEADER_FIXLEN 8U
|
|
|
|
#define ONF_EXP_ONF 0x4f4e4600
|
|
#define ONF_EXP_BUTE 0xff000001
|
|
#define ONF_EXP_NOVIFLOW 0xff000002
|
|
#define ONF_EXP_L3 0xff000003
|
|
#define ONF_EXP_L4L7 0xff000004
|
|
#define ONF_EXP_WMOB 0xff000005
|
|
#define ONF_EXP_FABS 0xff000006
|
|
#define ONF_EXP_OTRANS 0xff000007
|
|
#define ONF_EXP_NBLNCTU 0xff000008
|
|
#define ONF_EXP_MPCE 0xff000009
|
|
#define ONF_EXP_MPLSTPSPTN 0xff00000a
|
|
extern const struct tok onf_exp_str[];
|
|
|
|
extern const char * of_vendor_name(const uint32_t);
|
|
extern void of_bitmap_print(netdissect_options *ndo,
|
|
const struct tok *, const uint32_t, const uint32_t);
|
|
extern void of_data_print(netdissect_options *ndo,
|
|
const u_char *, const u_int);
|
|
|
|
/*
|
|
* Routines to handle various versions of OpenFlow.
|
|
*/
|
|
|
|
struct of_msgtypeinfo {
|
|
/* Should not be NULL. */
|
|
const char *name;
|
|
/* May be NULL to mean "message body printing is not implemented". */
|
|
void (*decoder)(netdissect_options *ndo, const u_char *, const u_int);
|
|
enum {
|
|
REQ_NONE, /* Message body length may be anything. */
|
|
REQ_FIXLEN, /* Message body length must be == req_value. */
|
|
REQ_MINLEN, /* Message body length must be >= req_value. */
|
|
} req_what;
|
|
uint16_t req_value;
|
|
};
|
|
|
|
extern const struct of_msgtypeinfo *of10_identify_msgtype(const uint8_t);
|
|
extern const struct of_msgtypeinfo *of13_identify_msgtype(const uint8_t);
|