mbuf.d revision 305781
1/* 2 * Copyright (c) 2016 George V. Neville-Neil 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/11/share/dtrace/mbuf.d 305781 2016-09-13 19:59:29Z markj $ 27 * 28 * Translators and flags for the mbuf structure. FreeBSD specific code. 29 */ 30 31#pragma D depends_on module kernel 32 33/* 34 * mbuf flags of global significance and layer crossing. 35 * Those of only protocol/layer specific significance are to be mapped 36 * to M_PROTO[1-12] and cleared at layer handoff boundaries. 37 * NB: Limited to the lower 24 bits. 38 */ 39 40#pragma D binding "1.6.3" M_EXT 41inline int M_EXT = 0x00000001; /* has associated external storage */ 42#pragma D binding "1.6.3" M_PKTHDR 43inline int M_PKTHDR = 0x00000002; /* start of record */ 44#pragma D binding "1.6.3" M_EOR 45inline int M_EOR = 0x00000004; /* end of record */ 46#pragma D binding "1.6.3" M_RDONLY 47inline int M_RDONLY = 0x00000008; /* associated data is marked read-only */ 48#pragma D binding "1.6.3" M_BCAST 49inline int M_BCAST = 0x00000010; /* send/received as link-level broadcast */ 50#pragma D binding "1.6.3" M_MCAST 51inline int M_MCAST = 0x00000020; /* send/received as link-level multicast */ 52#pragma D binding "1.6.3" M_PROMISC 53inline int M_PROMISC = 0x00000040; /* packet was not for us */ 54#pragma D binding "1.6.3" M_VLANTAG 55inline int M_VLANTAG = 0x00000080; /* ether_vtag is valid */ 56#pragma D binding "1.6.3" M_UNUSED_8 57inline int M_UNUSED_8 = 0x00000100; /* --available-- */ 58#pragma D binding "1.6.3" M_NOFREE 59inline int M_NOFREE = 0x00000200; /* do not free mbuf, embedded in cluster */ 60 61#pragma D binding "1.6.3" M_PROTO1 62inline int M_PROTO1 = 0x00001000; /* protocol-specific */ 63#pragma D binding "1.6.3" M_PROTO2 64inline int M_PROTO2 = 0x00002000; /* protocol-specific */ 65#pragma D binding "1.6.3" M_PROTO3 66inline int M_PROTO3 = 0x00004000; /* protocol-specific */ 67#pragma D binding "1.6.3" M_PROTO4 68inline int M_PROTO4 = 0x00008000; /* protocol-specific */ 69#pragma D binding "1.6.3" M_PROTO5 70inline int M_PROTO5 = 0x00010000; /* protocol-specific */ 71#pragma D binding "1.6.3" M_PROTO6 72inline int M_PROTO6 = 0x00020000; /* protocol-specific */ 73#pragma D binding "1.6.3" M_PROTO7 74inline int M_PROTO7 = 0x00040000; /* protocol-specific */ 75#pragma D binding "1.6.3" M_PROTO8 76inline int M_PROTO8 = 0x00080000; /* protocol-specific */ 77#pragma D binding "1.6.3" M_PROTO9 78inline int M_PROTO9 = 0x00100000; /* protocol-specific */ 79#pragma D binding "1.6.3" M_PROTO10 80inline int M_PROTO10 = 0x00200000; /* protocol-specific */ 81#pragma D binding "1.6.3" M_PROTO11 82inline int M_PROTO11 = 0x00400000; /* protocol-specific */ 83#pragma D binding "1.6.3" M_PROTO12 84inline int M_PROTO12 = 0x00800000; /* protocol-specific */ 85 86#pragma D binding "1.6.3" mbufflags_string 87inline string mbufflags_string[uint32_t flags] = 88 flags & M_EXT ? "M_EXT" : 89 flags & M_PKTHDR ? "M_PKTHDR" : 90 flags & M_EOR ? "M_EOR" : 91 flags & M_RDONLY ? "M_RDONLY" : 92 flags & M_BCAST ? "M_BCAST" : 93 flags & M_MCAST ? "M_MCAST" : 94 flags & M_PROMISC ? "M_PROMISC" : 95 flags & M_VLANTAG ? "M_VLANTAG" : 96 flags & M_UNUSED_8 ? "M_UNUSED_8" : 97 flags & M_NOFREE ? "M_NOFREE" : 98 flags & M_PROTO1 ? "M_PROTO1" : 99 flags & M_PROTO2 ? "M_PROTO2" : 100 flags & M_PROTO3 ? "M_PROTO3" : 101 flags & M_PROTO4 ? "M_PROTO4" : 102 flags & M_PROTO5 ? "M_PROTO5" : 103 flags & M_PROTO6 ? "M_PROTO6" : 104 flags & M_PROTO7 ? "M_PROTO7" : 105 flags & M_PROTO8 ? "M_PROTO8" : 106 flags & M_PROTO9 ? "M_PROTO9" : 107 flags & M_PROTO10 ? "M_PROTO10" : 108 flags & M_PROTO11 ? "M_PROTO11" : 109 flags & M_PROTO12 ? "M_PROTO12" : 110 "none" ; 111 112typedef struct mbufinfo { 113 uintptr_t mbuf_addr; 114 caddr_t m_data; 115 int32_t m_len; 116 uint8_t m_type; 117 uint32_t m_flags; 118} mbufinfo_t; 119 120translator mbufinfo_t < struct mbuf *p > { 121 mbuf_addr = (uintptr_t)p; 122 m_data = p->m_data; 123 m_len = p->m_len; 124 m_type = p->m_type & 0xff000000; 125 m_flags = p->m_type & 0x00ffffff; 126}; 127