Annotation of sys/sys/ktrace.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: ktrace.h,v 1.9 2006/05/17 02:11:25 tedu Exp $ */
! 2: /* $NetBSD: ktrace.h,v 1.12 1996/02/04 02:12:29 christos Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1988, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the University nor the names of its contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: *
! 32: * @(#)ktrace.h 8.1 (Berkeley) 6/2/93
! 33: */
! 34:
! 35: /*
! 36: * operations to ktrace system call (KTROP(op))
! 37: */
! 38: #define KTROP_SET 0 /* set trace points */
! 39: #define KTROP_CLEAR 1 /* clear trace points */
! 40: #define KTROP_CLEARFILE 2 /* stop all tracing to file */
! 41: #define KTROP(o) ((o)&3) /* macro to extract operation */
! 42: /*
! 43: * flags (ORed in with operation)
! 44: */
! 45: #define KTRFLAG_DESCEND 4 /* perform op on all children too */
! 46:
! 47: /*
! 48: * ktrace record header
! 49: */
! 50: struct ktr_header {
! 51: size_t ktr_len; /* length of buf */
! 52: pid_t ktr_pid; /* process id */
! 53: char ktr_comm[MAXCOMLEN+1]; /* command name */
! 54: short ktr_type; /* trace record type */
! 55: struct timeval ktr_time; /* timestamp */
! 56: caddr_t ktr_buf;
! 57: };
! 58:
! 59: /*
! 60: * Test for kernel trace point
! 61: */
! 62: #define KTRPOINT(p, type) \
! 63: (((p)->p_traceflag & ((1<<(type))|KTRFAC_ACTIVE)) == (1<<(type)))
! 64:
! 65: /*
! 66: * ktrace record types
! 67: */
! 68:
! 69: /*
! 70: * KTR_SYSCALL - system call record
! 71: */
! 72: #define KTR_SYSCALL 1
! 73: struct ktr_syscall {
! 74: int ktr_code; /* syscall number */
! 75: int ktr_argsize; /* size of arguments */
! 76: /*
! 77: * followed by ktr_argsize/sizeof(register_t) "register_t"s
! 78: */
! 79: };
! 80:
! 81: /*
! 82: * KTR_SYSRET - return from system call record
! 83: */
! 84: #define KTR_SYSRET 2
! 85: struct ktr_sysret {
! 86: short ktr_code;
! 87: short ktr_eosys;
! 88: int ktr_error;
! 89: int ktr_retval;
! 90: };
! 91:
! 92: /*
! 93: * KTR_NAMEI - namei record
! 94: */
! 95: #define KTR_NAMEI 3
! 96: /* record contains pathname */
! 97:
! 98: /*
! 99: * KTR_GENIO - trace generic process i/o
! 100: */
! 101: #define KTR_GENIO 4
! 102: struct ktr_genio {
! 103: int ktr_fd;
! 104: enum uio_rw ktr_rw;
! 105: /*
! 106: * followed by data successfully read/written
! 107: */
! 108: };
! 109:
! 110: /*
! 111: * KTR_PSIG - trace processed signal
! 112: */
! 113: #define KTR_PSIG 5
! 114: struct ktr_psig {
! 115: int signo;
! 116: sig_t action;
! 117: int mask;
! 118: int code;
! 119: siginfo_t si;
! 120: };
! 121:
! 122: /*
! 123: * KTR_CSW - trace context switches
! 124: */
! 125: #define KTR_CSW 6
! 126: struct ktr_csw {
! 127: int out; /* 1 if switch out, 0 if switch in */
! 128: int user; /* 1 if usermode (ivcsw), 0 if kernel (vcsw) */
! 129: };
! 130:
! 131: /*
! 132: * KTR_EMUL - emulation change
! 133: */
! 134: #define KTR_EMUL 7
! 135: /* record contains emulation name */
! 136:
! 137:
! 138: /*
! 139: * kernel trace points (in p_traceflag)
! 140: */
! 141: #define KTRFAC_MASK 0x00ffffff
! 142: #define KTRFAC_SYSCALL (1<<KTR_SYSCALL)
! 143: #define KTRFAC_SYSRET (1<<KTR_SYSRET)
! 144: #define KTRFAC_NAMEI (1<<KTR_NAMEI)
! 145: #define KTRFAC_GENIO (1<<KTR_GENIO)
! 146: #define KTRFAC_PSIG (1<<KTR_PSIG)
! 147: #define KTRFAC_CSW (1<<KTR_CSW)
! 148: #define KTRFAC_EMUL (1<<KTR_EMUL)
! 149: /*
! 150: * trace flags (also in p_traceflags)
! 151: */
! 152: #define KTRFAC_ROOT 0x80000000 /* root set this trace */
! 153: #define KTRFAC_INHERIT 0x40000000 /* pass trace flags to children */
! 154: #define KTRFAC_ACTIVE 0x20000000 /* ktrace logging in progress, ignore */
! 155:
! 156: #ifndef _KERNEL
! 157:
! 158: #include <sys/cdefs.h>
! 159:
! 160: __BEGIN_DECLS
! 161: int ktrace(const char *, int, int, pid_t);
! 162: __END_DECLS
! 163:
! 164: #else
! 165:
! 166: void ktrcsw(struct proc *, int, int);
! 167: void ktremul(struct proc *, char *);
! 168: void ktrgenio(struct proc *, int, enum uio_rw, struct iovec *, int, int);
! 169: void ktrnamei(struct proc *, char *);
! 170: void ktrpsig(struct proc *, int, sig_t, int, int, siginfo_t *);
! 171: void ktrsyscall(struct proc *, register_t, size_t, register_t []);
! 172: void ktrsysret(struct proc *, register_t, int, register_t);
! 173:
! 174: void ktrsettracevnode(struct proc *, struct vnode *);
! 175:
! 176: #endif /* !_KERNEL */
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