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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
* $FreeBSD$
*
*/
#ifndef _DTRACE_CDDL_H_
#define _DTRACE_CDDL_H_
#include <sys/proc.h>
#define LOCK_LEVEL 10
/*
* Kernel DTrace extension to 'struct proc' for FreeBSD.
*/
typedef struct kdtrace_proc {
int p_dtrace_probes; /* Are there probes for this proc? */
u_int64_t p_dtrace_count; /* Number of DTrace tracepoints */
void *p_dtrace_helpers; /* DTrace helpers, if any */
int p_dtrace_model;
} kdtrace_proc_t;
/*
* Kernel DTrace extension to 'struct thread' for FreeBSD.
*/
typedef struct kdtrace_thread {
u_int8_t td_dtrace_stop; /* Indicates a DTrace-desired stop */
u_int8_t td_dtrace_sig; /* Signal sent via DTrace's raise() */
u_int td_predcache; /* DTrace predicate cache */
u_int64_t td_dtrace_vtime; /* DTrace virtual time */
u_int64_t td_dtrace_start; /* DTrace slice start time */
union __tdu {
struct __tds {
u_int8_t _td_dtrace_on;
/* Hit a fasttrap tracepoint. */
u_int8_t _td_dtrace_step;
/* About to return to kernel. */
u_int8_t _td_dtrace_ret;
/* Handling a return probe. */
u_int8_t _td_dtrace_ast;
/* Saved ast flag. */
#ifdef __amd64__
u_int8_t _td_dtrace_reg;
#endif
} _tds;
u_long _td_dtrace_ft; /* Bitwise or of these flags. */
} _tdu;
#define td_dtrace_ft _tdu._td_dtrace_ft
#define td_dtrace_on _tdu._tds._td_dtrace_on
#define td_dtrace_step _tdu._tds._td_dtrace_step
#define td_dtrace_ret _tdu._tds._td_dtrace_ret
#define td_dtrace_ast _tdu._tds._td_dtrace_ast
#define td_dtrace_reg _tdu._tds._td_dtrace_reg
uintptr_t td_dtrace_pc; /* DTrace saved pc from fasttrap. */
uintptr_t td_dtrace_npc; /* DTrace next pc from fasttrap. */
uintptr_t td_dtrace_scrpc;
/* DTrace per-thread scratch location. */
uintptr_t td_dtrace_astpc;
/* DTrace return sequence location. */
#ifdef __amd64__
uintptr_t td_dtrace_regv;
#endif
u_int64_t td_hrtime; /* Last time on cpu. */
void *td_dtrace_sscr; /* Saved scratch space location. */
void *td_systrace_args; /* syscall probe arguments. */
} kdtrace_thread_t;
/*
* Definitions to reference fields in the FreeBSD DTrace structures defined
* above using the names of fields in similar structures in Solaris. Note
* that the separation on FreeBSD is a licensing constraint designed to
* keep the GENERIC kernel BSD licensed.
*/
#define t_dtrace_vtime td_dtrace->td_dtrace_vtime
#define t_dtrace_start td_dtrace->td_dtrace_start
#define t_dtrace_stop td_dtrace->td_dtrace_stop
#define t_dtrace_sig td_dtrace->td_dtrace_sig
#define t_predcache td_dtrace->td_predcache
#define t_dtrace_ft td_dtrace->td_dtrace_ft
#define t_dtrace_on td_dtrace->td_dtrace_on
#define t_dtrace_step td_dtrace->td_dtrace_step
#define t_dtrace_ret td_dtrace->td_dtrace_ret
#define t_dtrace_ast td_dtrace->td_dtrace_ast
#define t_dtrace_reg td_dtrace->td_dtrace_reg
#define t_dtrace_pc td_dtrace->td_dtrace_pc
#define t_dtrace_npc td_dtrace->td_dtrace_npc
#define t_dtrace_scrpc td_dtrace->td_dtrace_scrpc
#define t_dtrace_astpc td_dtrace->td_dtrace_astpc
#define t_dtrace_regv td_dtrace->td_dtrace_regv
#define t_dtrace_sscr td_dtrace->td_dtrace_sscr
#define t_dtrace_systrace_args td_dtrace->td_systrace_args
#define p_dtrace_helpers p_dtrace->p_dtrace_helpers
#define p_dtrace_count p_dtrace->p_dtrace_count
#define p_dtrace_probes p_dtrace->p_dtrace_probes
#define p_model p_dtrace->p_dtrace_model
#define DATAMODEL_NATIVE 0
#ifdef __amd64__
#define DATAMODEL_LP64 0
#define DATAMODEL_ILP32 1
#else
#define DATAMODEL_LP64 1
#define DATAMODEL_ILP32 0
#endif
/*
* Definitions for fields in struct proc which are named differently in FreeBSD.
*/
#define p_cred p_ucred
#define p_parent p_pptr
/*
* Definitions for fields in struct thread which are named differently in FreeBSD.
*/
#define t_procp td_proc
#define t_tid td_tid
#define t_did td_tid
#define t_cred td_ucred
int priv_policy(const cred_t *, int, boolean_t, int, const char *);
boolean_t priv_policy_only(const cred_t *, int, boolean_t);
boolean_t priv_policy_choice(const cred_t *, int, boolean_t);
/*
* Test privilege. Audit success or failure, allow privilege debugging.
* Returns 0 for success, err for failure.
*/
#define PRIV_POLICY(cred, priv, all, err, reason) \
priv_policy((cred), (priv), (all), (err), (reason))
/*
* Test privilege. Audit success only, no privilege debugging.
* Returns 1 for success, and 0 for failure.
*/
#define PRIV_POLICY_CHOICE(cred, priv, all) \
priv_policy_choice((cred), (priv), (all))
/*
* Test privilege. No priv_debugging, no auditing.
* Returns 1 for success, and 0 for failure.
*/
#define PRIV_POLICY_ONLY(cred, priv, all) \
priv_policy_only((cred), (priv), (all))
#endif /* !_DTRACE_CDDL_H_ */
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