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 uint64_t p_fasttrap_tp_gen; /* Tracepoint hash table gen */ 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_int8_t td_dtrace_inprobe; /* Are we in a probe? */ 50 u_int td_predcache; /* DTrace predicate cache */ 51 u_int64_t td_dtrace_vtime; /* DTrace virtual time */ 52 u_int64_t td_dtrace_start; /* DTrace slice start time */ 53 54 union __tdu { 55 struct __tds { 56 u_int8_t _td_dtrace_on; 57 /* Hit a fasttrap tracepoint. */ 58 u_int8_t _td_dtrace_step; 59 /* About to return to kernel. */ 60 u_int8_t _td_dtrace_ret; 61 /* Handling a return probe. */ 62 u_int8_t _td_dtrace_ast; 63 /* Saved ast flag. */ 64 #ifdef __amd64__ 65 u_int8_t _td_dtrace_reg; 66 #endif 67 } _tds; 68 u_long _td_dtrace_ft; /* Bitwise or of these flags. */ 69 } _tdu; 70 #define td_dtrace_ft _tdu._td_dtrace_ft 71 #define td_dtrace_on _tdu._tds._td_dtrace_on 72 #define td_dtrace_step _tdu._tds._td_dtrace_step 73 #define td_dtrace_ret _tdu._tds._td_dtrace_ret 74 #define td_dtrace_ast _tdu._tds._td_dtrace_ast 75 #define td_dtrace_reg _tdu._tds._td_dtrace_reg 76 77 uintptr_t td_dtrace_pc; /* DTrace saved pc from fasttrap. */ 78 uintptr_t td_dtrace_npc; /* DTrace next pc from fasttrap. */ 79 uintptr_t td_dtrace_scrpc; 80 /* DTrace per-thread scratch location. */ 81 uintptr_t td_dtrace_astpc; 82 /* DTrace return sequence location. */ 83 #ifdef __amd64__ 84 uintptr_t td_dtrace_regv; 85 #endif 86 u_int64_t td_hrtime; /* Last time on cpu. */ 87 void *td_dtrace_sscr; /* Saved scratch space location. */ 88 void *td_systrace_args; /* syscall probe arguments. */ 89 uint64_t td_fasttrap_tp_gen; /* Tracepoint hash table gen. */ 90 } kdtrace_thread_t; 91 92 /* 93 * Definitions to reference fields in the FreeBSD DTrace structures defined 94 * above using the names of fields in similar structures in Solaris. Note 95 * that the separation on FreeBSD is a licensing constraint designed to 96 * keep the GENERIC kernel BSD licensed. 97 */ 98 #define t_dtrace_vtime td_dtrace->td_dtrace_vtime 99 #define t_dtrace_start td_dtrace->td_dtrace_start 100 #define t_dtrace_stop td_dtrace->td_dtrace_stop 101 #define t_dtrace_sig td_dtrace->td_dtrace_sig 102 #define t_dtrace_inprobe td_dtrace->td_dtrace_inprobe 103 #define t_predcache td_dtrace->td_predcache 104 #define t_dtrace_ft td_dtrace->td_dtrace_ft 105 #define t_dtrace_on td_dtrace->td_dtrace_on 106 #define t_dtrace_step td_dtrace->td_dtrace_step 107 #define t_dtrace_ret td_dtrace->td_dtrace_ret 108 #define t_dtrace_ast td_dtrace->td_dtrace_ast 109 #define t_dtrace_reg td_dtrace->td_dtrace_reg 110 #define t_dtrace_pc td_dtrace->td_dtrace_pc 111 #define t_dtrace_npc td_dtrace->td_dtrace_npc 112 #define t_dtrace_scrpc td_dtrace->td_dtrace_scrpc 113 #define t_dtrace_astpc td_dtrace->td_dtrace_astpc 114 #define t_dtrace_regv td_dtrace->td_dtrace_regv 115 #define t_dtrace_sscr td_dtrace->td_dtrace_sscr 116 #define t_dtrace_systrace_args td_dtrace->td_systrace_args 117 #define t_fasttrap_tp_gen td_dtrace->td_fasttrap_tp_gen 118 #define p_dtrace_helpers p_dtrace->p_dtrace_helpers 119 #define p_dtrace_count p_dtrace->p_dtrace_count 120 #define p_dtrace_probes p_dtrace->p_dtrace_probes 121 #define p_model p_dtrace->p_dtrace_model 122 #define p_fasttrap_tp_gen p_dtrace->p_fasttrap_tp_gen 123 124 #define DATAMODEL_NATIVE 0 125 #ifdef __amd64__ 126 #define DATAMODEL_LP64 0 127 #define DATAMODEL_ILP32 1 128 #else 129 #define DATAMODEL_LP64 1 130 #define DATAMODEL_ILP32 0 131 #endif 132 133 /* 134 * Definitions for fields in struct proc which are named differently in FreeBSD. 135 */ 136 #define p_cred p_ucred 137 #define p_parent p_pptr 138 139 /* 140 * Definitions for fields in struct thread which are named differently in FreeBSD. 141 */ 142 #define t_procp td_proc 143 #define t_tid td_tid 144 #define t_did td_tid 145 #define t_cred td_ucred 146 147 148 int priv_policy(const cred_t *, int, boolean_t, int, const char *); 149 boolean_t priv_policy_only(const cred_t *, int, boolean_t); 150 boolean_t priv_policy_choice(const cred_t *, int, boolean_t); 151 152 /* 153 * Test privilege. Audit success or failure, allow privilege debugging. 154 * Returns 0 for success, err for failure. 155 */ 156 #define PRIV_POLICY(cred, priv, all, err, reason) \ 157 priv_policy((cred), (priv), (all), (err), (reason)) 158 159 /* 160 * Test privilege. Audit success only, no privilege debugging. 161 * Returns 1 for success, and 0 for failure. 162 */ 163 #define PRIV_POLICY_CHOICE(cred, priv, all) \ 164 priv_policy_choice((cred), (priv), (all)) 165 166 /* 167 * Test privilege. No priv_debugging, no auditing. 168 * Returns 1 for success, and 0 for failure. 169 */ 170 171 #define PRIV_POLICY_ONLY(cred, priv, all) \ 172 priv_policy_only((cred), (priv), (all)) 173 174 #endif /* !_DTRACE_CDDL_H_ */ 175