sn1_brand.c revision eb5a5c7888f20ad6fa4580e785308db395ef6dfc
/*
* 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
*/
/*
* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include <sys/errno.h>
#include <sys/exec.h>
#include <sys/kmem.h>
#include <sys/modctl.h>
#include <sys/model.h>
#include <sys/proc.h>
#include <sys/syscall.h>
#include <sys/systm.h>
#include <sys/thread.h>
#include <sys/cmn_err.h>
#include <sys/archsystm.h>
#include <sys/pathname.h>
#include <sys/machbrand.h>
#include <sys/brand.h>
#include "sn1_brand.h"
char *sn1_emulation_table = NULL;
void sn1_init_brand_data(zone_t *);
void sn1_free_brand_data(zone_t *);
void sn1_setbrand(proc_t *);
int sn1_getattr(zone_t *, int, void *, size_t *);
int sn1_setattr(zone_t *, int, void *, size_t);
int sn1_brandsys(int, int64_t *, uintptr_t, uintptr_t, uintptr_t,
uintptr_t, uintptr_t, uintptr_t);
void sn1_copy_procdata(proc_t *, proc_t *);
void sn1_proc_exit(struct proc *, klwp_t *);
void sn1_exec();
int sn1_initlwp(klwp_t *);
void sn1_forklwp(klwp_t *, klwp_t *);
void sn1_freelwp(klwp_t *);
void sn1_lwpexit(klwp_t *);
int sn1_elfexec(vnode_t *, execa_t *, uarg_t *, intpdata_t *, int,
long *, int, caddr_t, cred_t *, int);
/* sn1 brand */
struct brand_ops sn1_brops = {
sn1_init_brand_data,
sn1_free_brand_data,
sn1_brandsys,
sn1_setbrand,
sn1_getattr,
sn1_setattr,
sn1_copy_procdata,
sn1_proc_exit,
sn1_exec,
lwp_setrval,
sn1_initlwp,
sn1_forklwp,
sn1_freelwp,
sn1_lwpexit,
sn1_elfexec,
NULL,
NULL,
NSIG,
};
#ifdef sparc
struct brand_mach_ops sn1_mops = {
sn1_brand_syscall_callback,
sn1_brand_syscall32_callback
};
#else /* sparc */
#ifdef __amd64
struct brand_mach_ops sn1_mops = {
sn1_brand_sysenter_callback,
sn1_brand_int91_callback,
sn1_brand_syscall_callback,
sn1_brand_syscall32_callback
};
#else /* ! __amd64 */
struct brand_mach_ops sn1_mops = {
sn1_brand_sysenter_callback,
NULL,
sn1_brand_syscall_callback,
NULL
};
#endif /* __amd64 */
#endif /* _sparc */
struct brand sn1_brand = {
BRAND_VER_1,
"sn1",
&sn1_brops,
&sn1_mops
};
static struct modlbrand modlbrand = {
&mod_brandops, /* type of module */
"Solaris N-1 Brand", /* description of module */
&sn1_brand /* driver ops */
};
static struct modlinkage modlinkage = {
MODREV_1, (void *)&modlbrand, NULL
};
void
sn1_setbrand(proc_t *p)
{
brand_solaris_setbrand(p, &sn1_brand);
}
/* ARGSUSED */
int
sn1_getattr(zone_t *zone, int attr, void *buf, size_t *bufsize)
{
return (EINVAL);
}
/* ARGSUSED */
int
sn1_setattr(zone_t *zone, int attr, void *buf, size_t bufsize)
{
return (EINVAL);
}
/*ARGSUSED*/
int
sn1_brandsys(int cmd, int64_t *rval, uintptr_t arg1, uintptr_t arg2,
uintptr_t arg3, uintptr_t arg4, uintptr_t arg5, uintptr_t arg6)
{
int res;
*rval = 0;
res = brand_solaris_cmd(cmd, arg1, arg2, arg3, &sn1_brand, SN1_VERSION);
if (res >= 0)
return (res);
return (EINVAL);
}
void
sn1_copy_procdata(proc_t *child, proc_t *parent)
{
brand_solaris_copy_procdata(child, parent, &sn1_brand);
}
void
sn1_proc_exit(struct proc *p, klwp_t *l)
{
brand_solaris_proc_exit(p, l, &sn1_brand);
}
void
sn1_exec()
{
brand_solaris_exec(&sn1_brand);
}
int
sn1_initlwp(klwp_t *l)
{
return (brand_solaris_initlwp(l, &sn1_brand));
}
void
sn1_forklwp(klwp_t *p, klwp_t *c)
{
brand_solaris_forklwp(p, c, &sn1_brand);
}
void
sn1_freelwp(klwp_t *l)
{
brand_solaris_freelwp(l, &sn1_brand);
}
void
sn1_lwpexit(klwp_t *l)
{
brand_solaris_lwpexit(l, &sn1_brand);
}
/*ARGSUSED*/
void
sn1_free_brand_data(zone_t *zone)
{
}
/*ARGSUSED*/
void
sn1_init_brand_data(zone_t *zone)
{
}
int
sn1_elfexec(vnode_t *vp, execa_t *uap, uarg_t *args, intpdata_t *idatap,
int level, long *execsz, int setid, caddr_t exec_file, cred_t *cred,
int brand_action)
{
return (brand_solaris_elfexec(vp, uap, args, idatap, level, execsz,
setid, exec_file, cred, brand_action, &sn1_brand, SN1_BRANDNAME,
SN1_LIB, SN1_LIB32, SN1_LINKER, SN1_LINKER32));
}
int
_init(void)
{
int err;
/*
* Set up the table indicating which system calls we want to
* interpose on. We should probably build this automatically from
* a list of system calls that is shared with the user-space
* library.
*/
sn1_emulation_table = kmem_zalloc(NSYSCALL, KM_SLEEP);
sn1_emulation_table[SYS_read] = 1; /* 3 */
sn1_emulation_table[SYS_write] = 1; /* 4 */
sn1_emulation_table[SYS_time] = 1; /* 13 */
sn1_emulation_table[SYS_getpid] = 1; /* 20 */
sn1_emulation_table[SYS_mount] = 1; /* 21 */
sn1_emulation_table[SYS_getuid] = 1; /* 24 */
sn1_emulation_table[SYS_times] = 1; /* 43 */
sn1_emulation_table[SYS_getgid] = 1; /* 47 */
sn1_emulation_table[SYS_utssys] = 1; /* 57 */
sn1_emulation_table[SYS_readlink] = 1; /* 90 */
sn1_emulation_table[SYS_waitid] = 1; /* 107 */
sn1_emulation_table[SYS_uname] = 1; /* 135 */
err = mod_install(&modlinkage);
if (err) {
cmn_err(CE_WARN, "Couldn't install brand module");
kmem_free(sn1_emulation_table, NSYSCALL);
}
return (err);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
int
_fini(void)
{
return (brand_solaris_fini(&sn1_emulation_table, &modlinkage,
&sn1_brand));
}