dtrace_cddl.h revision 269342
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 * 21 * $FreeBSD: stable/10/sys/cddl/dev/dtrace/dtrace_cddl.h 269342 2014-07-31 17:10:03Z markj $ 22 * 23 */ 24 25#ifndef _DTRACE_CDDL_H_ 26#define _DTRACE_CDDL_H_ 27 28#include <sys/proc.h> 29 30#define LOCK_LEVEL 10 31 32/* 33 * Kernel DTrace extension to 'struct proc' for FreeBSD. 34 */ 35typedef struct kdtrace_proc { 36 int p_dtrace_probes; /* Are there probes for this proc? */ 37 u_int64_t p_dtrace_count; /* Number of DTrace tracepoints */ 38 void *p_dtrace_helpers; /* DTrace helpers, if any */ 39 int p_dtrace_model; 40 41} kdtrace_proc_t; 42 43/* 44 * Kernel DTrace extension to 'struct thread' for FreeBSD. 45 */ 46typedef struct kdtrace_thread { 47 u_int8_t td_dtrace_stop; /* Indicates a DTrace-desired stop */ 48 u_int8_t td_dtrace_sig; /* Signal sent via DTrace's raise() */ 49 u_int td_predcache; /* DTrace predicate cache */ 50 u_int64_t td_dtrace_vtime; /* DTrace virtual time */ 51 u_int64_t td_dtrace_start; /* DTrace slice start time */ 52 53 union __tdu { 54 struct __tds { 55 u_int8_t _td_dtrace_on; 56 /* Hit a fasttrap tracepoint. */ 57 u_int8_t _td_dtrace_step; 58 /* About to return to kernel. */ 59 u_int8_t _td_dtrace_ret; 60 /* Handling a return probe. */ 61 u_int8_t _td_dtrace_ast; 62 /* Saved ast flag. */ 63#ifdef __amd64__ 64 u_int8_t _td_dtrace_reg; 65#endif 66 } _tds; 67 u_long _td_dtrace_ft; /* Bitwise or of these flags. */ 68 } _tdu; 69#define td_dtrace_ft _tdu._td_dtrace_ft 70#define td_dtrace_on _tdu._tds._td_dtrace_on 71#define td_dtrace_step _tdu._tds._td_dtrace_step 72#define td_dtrace_ret _tdu._tds._td_dtrace_ret 73#define td_dtrace_ast _tdu._tds._td_dtrace_ast 74#define td_dtrace_reg _tdu._tds._td_dtrace_reg 75 76 uintptr_t td_dtrace_pc; /* DTrace saved pc from fasttrap. */ 77 uintptr_t td_dtrace_npc; /* DTrace next pc from fasttrap. */ 78 uintptr_t td_dtrace_scrpc; 79 /* DTrace per-thread scratch location. */ 80 uintptr_t td_dtrace_astpc; 81 /* DTrace return sequence location. */ 82#ifdef __amd64__ 83 uintptr_t td_dtrace_regv; 84#endif 85 u_int64_t td_hrtime; /* Last time on cpu. */ 86 int td_errno; /* Syscall return value. */ 87 void *td_dtrace_sscr; /* Saved scratch space location. */ 88} kdtrace_thread_t; 89 90/* 91 * Definitions to reference fields in the FreeBSD DTrace structures defined 92 * above using the names of fields in similar structures in Solaris. Note 93 * that the separation on FreeBSD is a licensing constraint designed to 94 * keep the GENERIC kernel BSD licensed. 95 */ 96#define t_dtrace_vtime td_dtrace->td_dtrace_vtime 97#define t_dtrace_start td_dtrace->td_dtrace_start 98#define t_dtrace_stop td_dtrace->td_dtrace_stop 99#define t_dtrace_sig td_dtrace->td_dtrace_sig 100#define t_predcache td_dtrace->td_predcache 101#define t_dtrace_ft td_dtrace->td_dtrace_ft 102#define t_dtrace_on td_dtrace->td_dtrace_on 103#define t_dtrace_step td_dtrace->td_dtrace_step 104#define t_dtrace_ret td_dtrace->td_dtrace_ret 105#define t_dtrace_ast td_dtrace->td_dtrace_ast 106#define t_dtrace_reg td_dtrace->td_dtrace_reg 107#define t_dtrace_pc td_dtrace->td_dtrace_pc 108#define t_dtrace_npc td_dtrace->td_dtrace_npc 109#define t_dtrace_scrpc td_dtrace->td_dtrace_scrpc 110#define t_dtrace_astpc td_dtrace->td_dtrace_astpc 111#define t_dtrace_regv td_dtrace->td_dtrace_regv 112#define t_dtrace_sscr td_dtrace->td_dtrace_sscr 113#define p_dtrace_helpers p_dtrace->p_dtrace_helpers 114#define p_dtrace_count p_dtrace->p_dtrace_count 115#define p_dtrace_probes p_dtrace->p_dtrace_probes 116#define p_model p_dtrace->p_dtrace_model 117 118#define DATAMODEL_NATIVE 0 119#ifdef __amd64__ 120#define DATAMODEL_LP64 0 121#define DATAMODEL_ILP32 1 122#else 123#define DATAMODEL_LP64 1 124#define DATAMODEL_ILP32 0 125#endif 126 127/* 128 * Definitions for fields in struct proc which are named differently in FreeBSD. 129 */ 130#define p_cred p_ucred 131#define p_parent p_pptr 132 133/* 134 * Definitions for fields in struct thread which are named differently in FreeBSD. 135 */ 136#define t_procp td_proc 137#define t_tid td_tid 138#define t_did td_tid 139#define t_cred td_ucred 140 141 142int priv_policy(const cred_t *, int, boolean_t, int, const char *); 143boolean_t priv_policy_only(const cred_t *, int, boolean_t); 144boolean_t priv_policy_choice(const cred_t *, int, boolean_t); 145 146/* 147 * Test privilege. Audit success or failure, allow privilege debugging. 148 * Returns 0 for success, err for failure. 149 */ 150#define PRIV_POLICY(cred, priv, all, err, reason) \ 151 priv_policy((cred), (priv), (all), (err), (reason)) 152 153/* 154 * Test privilege. Audit success only, no privilege debugging. 155 * Returns 1 for success, and 0 for failure. 156 */ 157#define PRIV_POLICY_CHOICE(cred, priv, all) \ 158 priv_policy_choice((cred), (priv), (all)) 159 160/* 161 * Test privilege. No priv_debugging, no auditing. 162 * Returns 1 for success, and 0 for failure. 163 */ 164 165#define PRIV_POLICY_ONLY(cred, priv, all) \ 166 priv_policy_only((cred), (priv), (all)) 167 168#endif /* !_DTRACE_CDDL_H_ */ 169