1 /* $NetBSD: ktrace.h,v 1.11 1995/07/19 15:27:05 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)ktrace.h 8.1 (Berkeley) 6/2/93 36 */ 37 38 /* 39 * operations to ktrace system call (KTROP(op)) 40 */ 41 #define KTROP_SET 0 /* set trace points */ 42 #define KTROP_CLEAR 1 /* clear trace points */ 43 #define KTROP_CLEARFILE 2 /* stop all tracing to file */ 44 #define KTROP(o) ((o)&3) /* macro to extract operation */ 45 /* 46 * flags (ORed in with operation) 47 */ 48 #define KTRFLAG_DESCEND 4 /* perform op on all children too */ 49 50 /* 51 * ktrace record header 52 */ 53 struct ktr_header { 54 int ktr_len; /* length of buf */ 55 short ktr_type; /* trace record type */ 56 pid_t ktr_pid; /* process id */ 57 char ktr_comm[MAXCOMLEN+1]; /* command name */ 58 struct timeval ktr_time; /* timestamp */ 59 caddr_t ktr_buf; 60 }; 61 62 /* 63 * Test for kernel trace point 64 */ 65 #define KTRPOINT(p, type) \ 66 (((p)->p_traceflag & ((1<<(type))|KTRFAC_ACTIVE)) == (1<<(type))) 67 68 /* 69 * ktrace record types 70 */ 71 72 /* 73 * KTR_SYSCALL - system call record 74 */ 75 #define KTR_SYSCALL 1 76 struct ktr_syscall { 77 int ktr_code; /* syscall number */ 78 int ktr_argsize; /* size of arguments */ 79 /* 80 * followed by ktr_argsize/sizeof(register_t) "register_t"s 81 */ 82 }; 83 84 /* 85 * KTR_SYSRET - return from system call record 86 */ 87 #define KTR_SYSRET 2 88 struct ktr_sysret { 89 short ktr_code; 90 short ktr_eosys; 91 int ktr_error; 92 int ktr_retval; 93 }; 94 95 /* 96 * KTR_NAMEI - namei record 97 */ 98 #define KTR_NAMEI 3 99 /* record contains pathname */ 100 101 /* 102 * KTR_GENIO - trace generic process i/o 103 */ 104 #define KTR_GENIO 4 105 struct ktr_genio { 106 int ktr_fd; 107 enum uio_rw ktr_rw; 108 /* 109 * followed by data successfully read/written 110 */ 111 }; 112 113 /* 114 * KTR_PSIG - trace processed signal 115 */ 116 #define KTR_PSIG 5 117 struct ktr_psig { 118 int signo; 119 sig_t action; 120 int mask; 121 int code; 122 }; 123 124 /* 125 * KTR_CSW - trace context switches 126 */ 127 #define KTR_CSW 6 128 struct ktr_csw { 129 int out; /* 1 if switch out, 0 if switch in */ 130 int user; /* 1 if usermode (ivcsw), 0 if kernel (vcsw) */ 131 }; 132 133 /* 134 * KTR_EMUL - emulation change 135 */ 136 #define KTR_EMUL 7 137 /* record contains emulation name */ 138 139 /* 140 * kernel trace points (in p_traceflag) 141 */ 142 #define KTRFAC_MASK 0x00ffffff 143 #define KTRFAC_SYSCALL (1<<KTR_SYSCALL) 144 #define KTRFAC_SYSRET (1<<KTR_SYSRET) 145 #define KTRFAC_NAMEI (1<<KTR_NAMEI) 146 #define KTRFAC_GENIO (1<<KTR_GENIO) 147 #define KTRFAC_PSIG (1<<KTR_PSIG) 148 #define KTRFAC_CSW (1<<KTR_CSW) 149 #define KTRFAC_EMUL (1<<KTR_EMUL) 150 /* 151 * trace flags (also in p_traceflags) 152 */ 153 #define KTRFAC_ROOT 0x80000000 /* root set this trace */ 154 #define KTRFAC_INHERIT 0x40000000 /* pass trace flags to children */ 155 #define KTRFAC_ACTIVE 0x20000000 /* ktrace logging in progress, ignore */ 156 157 #ifndef _KERNEL 158 159 #include <sys/cdefs.h> 160 161 __BEGIN_DECLS 162 int ktrace __P((const char *, int, int, pid_t)); 163 __END_DECLS 164 165 #endif /* !_KERNEL */ 166