1 /* 2 * Copyright (c) 2013 The TCPDUMP project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 17 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 18 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* OpenFlow: protocol between controller and datapath. */ 29 30 /* for netdissect_options */ 31 #include "netdissect.h" 32 33 #define OF_FWD(n) { \ 34 cp += (n); \ 35 len -= (n); \ 36 } 37 38 #define OF_CHK_FWD(n) { \ 39 ND_TCHECK_LEN(cp, (n)); \ 40 cp += (n); \ 41 len -= (n); \ 42 } 43 44 #define OF_VER_1_0 0x01U 45 #define OF_VER_1_1 0x02U 46 #define OF_VER_1_2 0x03U 47 #define OF_VER_1_3 0x04U 48 #define OF_VER_1_4 0x05U 49 #define OF_VER_1_5 0x06U 50 51 #define OF_HEADER_FIXLEN 8U 52 53 #define ONF_EXP_ONF 0x4f4e4600 54 #define ONF_EXP_BUTE 0xff000001 55 #define ONF_EXP_NOVIFLOW 0xff000002 56 #define ONF_EXP_L3 0xff000003 57 #define ONF_EXP_L4L7 0xff000004 58 #define ONF_EXP_WMOB 0xff000005 59 #define ONF_EXP_FABS 0xff000006 60 #define ONF_EXP_OTRANS 0xff000007 61 #define ONF_EXP_NBLNCTU 0xff000008 62 #define ONF_EXP_MPCE 0xff000009 63 #define ONF_EXP_MPLSTPSPTN 0xff00000a 64 extern const struct tok onf_exp_str[]; 65 66 extern const char * of_vendor_name(const uint32_t); 67 extern void of_bitmap_print(netdissect_options *ndo, 68 const struct tok *, const uint32_t, const uint32_t); 69 extern void of_data_print(netdissect_options *ndo, 70 const u_char *, const u_int); 71 72 /* 73 * Routines to handle various versions of OpenFlow. 74 */ 75 76 struct of_msgtypeinfo { 77 /* Should not be NULL. */ 78 const char *name; 79 /* May be NULL to mean "message body printing is not implemented". */ 80 void (*decoder)(netdissect_options *ndo, const u_char *, const u_int); 81 enum { 82 REQ_NONE, /* Message body length may be anything. */ 83 REQ_FIXLEN, /* Message body length must be == req_value. */ 84 REQ_MINLEN, /* Message body length must be >= req_value. */ 85 } req_what; 86 uint16_t req_value; 87 }; 88 89 extern const struct of_msgtypeinfo *of10_identify_msgtype(const uint8_t); 90 extern const struct of_msgtypeinfo *of13_identify_msgtype(const uint8_t); 91