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 40 } kdtrace_proc_t; 41 42 /* 43 * Kernel DTrace extension to 'struct thread' for FreeBSD. 44 */ 45 typedef struct kdtrace_thread { 46 u_int8_t td_dtrace_stop; /* Indicates a DTrace-desired stop */ 47 u_int8_t td_dtrace_sig; /* Signal sent via DTrace's raise() */ 48 u_int td_predcache; /* DTrace predicate cache */ 49 u_int64_t td_dtrace_vtime; /* DTrace virtual time */ 50 u_int64_t td_dtrace_start; /* DTrace slice start time */ 51 52 union __tdu { 53 struct __tds { 54 u_int8_t _td_dtrace_on; 55 /* Hit a fasttrap tracepoint. */ 56 u_int8_t _td_dtrace_step; 57 /* About to return to kernel. */ 58 u_int8_t _td_dtrace_ret; 59 /* Handling a return probe. */ 60 u_int8_t _td_dtrace_ast; 61 /* Saved ast flag. */ 62 } _tds; 63 u_long _td_dtrace_ft; /* Bitwise or of these flags. */ 64 } _tdu; 65 #define td_dtrace_ft _tdu._td_dtrace_ft 66 #define td_dtrace_on _tdu._tds._td_dtrace_on 67 #define td_dtrace_step _tdu._tds._td_dtrace_step 68 #define td_dtrace_ret _tdu._tds._td_dtrace_ret 69 #define td_dtrace_ast _tdu._tds._td_dtrace_ast 70 71 uintptr_t td_dtrace_pc; /* DTrace saved pc from fasttrap. */ 72 uintptr_t td_dtrace_npc; /* DTrace next pc from fasttrap. */ 73 uintptr_t td_dtrace_scrpc; 74 /* DTrace per-thread scratch location. */ 75 uintptr_t td_dtrace_astpc; 76 /* DTrace return sequence location. */ 77 u_int64_t td_hrtime; /* Last time on cpu. */ 78 int td_errno; /* Syscall return value. */ 79 } kdtrace_thread_t; 80 81 /* 82 * Definitions to reference fields in the FreeBSD DTrace structures defined 83 * above using the names of fields in similar structures in Solaris. Note 84 * that the separation on FreeBSD is a licensing constraint designed to 85 * keep the GENERIC kernel BSD licensed. 86 */ 87 #define t_dtrace_vtime td_dtrace->td_dtrace_vtime 88 #define t_dtrace_start td_dtrace->td_dtrace_start 89 #define t_dtrace_stop td_dtrace->td_dtrace_stop 90 #define t_dtrace_sig td_dtrace->td_dtrace_sig 91 #define t_predcache td_dtrace->td_predcache 92 #define p_dtrace_helpers p_dtrace->p_dtrace_helpers 93 94 /* 95 * Definitions for fields in struct proc which are named differntly in FreeBSD. 96 */ 97 #define p_cred p_ucred 98 #define p_parent p_pptr 99 100 /* 101 * Definitions for fields in struct thread which are named differntly in FreeBSD. 102 */ 103 #define t_procp td_proc 104 #define t_tid td_tid 105 #define t_did td_tid 106 107 108 int priv_policy(const cred_t *, int, boolean_t, int, const char *); 109 boolean_t priv_policy_only(const cred_t *, int, boolean_t); 110 boolean_t priv_policy_choice(const cred_t *, int, boolean_t); 111 112 /* 113 * Test privilege. Audit success or failure, allow privilege debugging. 114 * Returns 0 for success, err for failure. 115 */ 116 #define PRIV_POLICY(cred, priv, all, err, reason) \ 117 priv_policy((cred), (priv), (all), (err), (reason)) 118 119 /* 120 * Test privilege. Audit success only, no privilege debugging. 121 * Returns 1 for success, and 0 for failure. 122 */ 123 #define PRIV_POLICY_CHOICE(cred, priv, all) \ 124 priv_policy_choice((cred), (priv), (all)) 125 126 /* 127 * Test privilege. No priv_debugging, no auditing. 128 * Returns 1 for success, and 0 for failure. 129 */ 130 131 #define PRIV_POLICY_ONLY(cred, priv, all) \ 132 priv_policy_only((cred), (priv), (all)) 133 134 #endif /* !_DTRACE_CDDL_H_ */ 135