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 * $FreeBSD$ 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 */ 35 typedef 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 */ 46 typedef 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 void *td_dtrace_sscr; /* Saved scratch space location. */ 87 void *td_systrace_args; /* syscall probe arguments. */ 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 t_dtrace_systrace_args td_dtrace->td_systrace_args 114 #define p_dtrace_helpers p_dtrace->p_dtrace_helpers 115 #define p_dtrace_count p_dtrace->p_dtrace_count 116 #define p_dtrace_probes p_dtrace->p_dtrace_probes 117 #define p_model p_dtrace->p_dtrace_model 118 119 #define DATAMODEL_NATIVE 0 120 #ifdef __amd64__ 121 #define DATAMODEL_LP64 0 122 #define DATAMODEL_ILP32 1 123 #else 124 #define DATAMODEL_LP64 1 125 #define DATAMODEL_ILP32 0 126 #endif 127 128 /* 129 * Definitions for fields in struct proc which are named differently in FreeBSD. 130 */ 131 #define p_cred p_ucred 132 #define p_parent p_pptr 133 134 /* 135 * Definitions for fields in struct thread which are named differently in FreeBSD. 136 */ 137 #define t_procp td_proc 138 #define t_tid td_tid 139 #define t_did td_tid 140 #define t_cred td_ucred 141 142 143 int priv_policy(const cred_t *, int, boolean_t, int, const char *); 144 boolean_t priv_policy_only(const cred_t *, int, boolean_t); 145 boolean_t priv_policy_choice(const cred_t *, int, boolean_t); 146 147 /* 148 * Test privilege. Audit success or failure, allow privilege debugging. 149 * Returns 0 for success, err for failure. 150 */ 151 #define PRIV_POLICY(cred, priv, all, err, reason) \ 152 priv_policy((cred), (priv), (all), (err), (reason)) 153 154 /* 155 * Test privilege. Audit success only, no privilege debugging. 156 * Returns 1 for success, and 0 for failure. 157 */ 158 #define PRIV_POLICY_CHOICE(cred, priv, all) \ 159 priv_policy_choice((cred), (priv), (all)) 160 161 /* 162 * Test privilege. No priv_debugging, no auditing. 163 * Returns 1 for success, and 0 for failure. 164 */ 165 166 #define PRIV_POLICY_ONLY(cred, priv, all) \ 167 priv_policy_only((cred), (priv), (all)) 168 169 #endif /* !_DTRACE_CDDL_H_ */ 170