Annotation of sys/sys/ktrace.h, Revision 1.1.1.1
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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