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 */ 22 23 #ifndef _DTRACE_CDDL_H_ 24 #define _DTRACE_CDDL_H_ 25 26 #include <sys/proc.h> 27 28 /* 29 * Kernel DTrace extension to 'struct proc' for FreeBSD. 30 */ 31 typedef struct kdtrace_proc { 32 int p_dtrace_probes; /* Are there probes for this proc? */ 33 uint64_t p_dtrace_count; /* Number of DTrace tracepoints */ 34 void *p_dtrace_helpers; /* DTrace helpers, if any */ 35 int p_dtrace_model; 36 uint64_t p_fasttrap_tp_gen; /* Tracepoint hash table gen */ 37 } kdtrace_proc_t; 38 39 /* 40 * Kernel DTrace extension to 'struct thread' for FreeBSD. 41 */ 42 typedef struct kdtrace_thread { 43 uint8_t td_dtrace_stop; /* Indicates a DTrace-desired stop */ 44 uint8_t td_dtrace_sig; /* Signal sent via DTrace's raise() */ 45 uint8_t td_dtrace_inprobe; /* Are we in a probe? */ 46 u_int td_predcache; /* DTrace predicate cache */ 47 uint64_t td_dtrace_vtime; /* DTrace virtual time */ 48 uint64_t td_dtrace_start; /* DTrace slice start time */ 49 50 union __tdu { 51 struct __tds { 52 uint8_t _td_dtrace_on; 53 /* Hit a fasttrap tracepoint. */ 54 uint8_t _td_dtrace_step; 55 /* About to return to kernel. */ 56 uint8_t _td_dtrace_ret; 57 /* Handling a return probe. */ 58 uint8_t _td_dtrace_ast; 59 /* Saved ast flag. */ 60 #ifdef __amd64__ 61 uint8_t _td_dtrace_reg; 62 #endif 63 } _tds; 64 u_long _td_dtrace_ft; /* Bitwise or of these flags. */ 65 } _tdu; 66 #define td_dtrace_ft _tdu._td_dtrace_ft 67 #define td_dtrace_on _tdu._tds._td_dtrace_on 68 #define td_dtrace_step _tdu._tds._td_dtrace_step 69 #define td_dtrace_ret _tdu._tds._td_dtrace_ret 70 #define td_dtrace_ast _tdu._tds._td_dtrace_ast 71 #define td_dtrace_reg _tdu._tds._td_dtrace_reg 72 73 uintptr_t td_dtrace_pc; /* DTrace saved pc from fasttrap. */ 74 uintptr_t td_dtrace_npc; /* DTrace next pc from fasttrap. */ 75 uintptr_t td_dtrace_scrpc; 76 /* DTrace per-thread scratch location. */ 77 uintptr_t td_dtrace_astpc; 78 /* DTrace return sequence location. */ 79 #ifdef __amd64__ 80 uintptr_t td_dtrace_regv; 81 #endif 82 uint64_t td_hrtime; /* Last time on cpu. */ 83 void *td_dtrace_sscr; /* Saved scratch space location. */ 84 void *td_systrace_args; /* syscall probe arguments. */ 85 uint64_t td_fasttrap_tp_gen; /* Tracepoint hash table gen. */ 86 struct trapframe *td_dtrace_trapframe; /* Trap frame from invop. */ 87 void *td_kinst_tramp; 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_dtrace_inprobe td_dtrace->td_dtrace_inprobe 101 #define t_predcache td_dtrace->td_predcache 102 #define t_dtrace_ft td_dtrace->td_dtrace_ft 103 #define t_dtrace_on td_dtrace->td_dtrace_on 104 #define t_dtrace_step td_dtrace->td_dtrace_step 105 #define t_dtrace_ret td_dtrace->td_dtrace_ret 106 #define t_dtrace_ast td_dtrace->td_dtrace_ast 107 #define t_dtrace_reg td_dtrace->td_dtrace_reg 108 #define t_dtrace_pc td_dtrace->td_dtrace_pc 109 #define t_dtrace_npc td_dtrace->td_dtrace_npc 110 #define t_dtrace_scrpc td_dtrace->td_dtrace_scrpc 111 #define t_dtrace_astpc td_dtrace->td_dtrace_astpc 112 #define t_dtrace_regv td_dtrace->td_dtrace_regv 113 #define t_dtrace_sscr td_dtrace->td_dtrace_sscr 114 #define t_dtrace_systrace_args td_dtrace->td_systrace_args 115 #define t_fasttrap_tp_gen td_dtrace->td_fasttrap_tp_gen 116 #define t_dtrace_trapframe td_dtrace->td_dtrace_trapframe 117 #define t_kinst_tramp td_dtrace->td_kinst_tramp 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