libzpool - zygaena/hammerhead

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#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (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 2005 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

include		../Makefile.lib

# Hammerhead: amd64-only
SUBDIRS = $(MACH64)

all :		TARGET= all
clean :	TARGET= clean
clobber :	TARGET= clobber
install :	TARGET= install

.KEEP_STATE:

all clean clobber install: $(SUBDIRS)

install_h: $(ROOTHDRS)

check: $(CHECKHDRS)

$(SUBDIRS): FRC
	@cd $@; pwd; $(MAKE) $(TARGET)

FRC:
#
# 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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
# Copyright 2020 Joyent, Inc.
# Copyright 2023 OmniOS Community Edition (OmniOSce) Association.
#

LIBRARY= libzpool.a
VERS= .1

# include the list of ZFS sources
include ../../../uts/common/Makefile.files
KERNEL_OBJS = kernel.o util.o
DTRACE_OBJS = zfs.o

OBJECTS=$(LUA_OBJS) $(ZFS_COMMON_OBJS) $(ZFS_SHARED_OBJS) $(KERNEL_OBJS)

# include library definitions
include ../../Makefile.lib

LUA_SRCS=		$(LUA_OBJS:%.o=../../../uts/common/fs/zfs/lua/%.c)
ZFS_COMMON_SRCS=	$(ZFS_COMMON_OBJS:%.o=../../../uts/common/fs/zfs/%.c)
ZFS_SHARED_SRCS=	$(ZFS_SHARED_OBJS:%.o=../../../common/zfs/%.c)
KERNEL_SRCS=		$(KERNEL_OBJS:%.o=../common/%.c)

SRCS=$(LUA_SRCS) $(ZFS_COMMON_SRCS) $(ZFS_SHARED_SRCS) $(KERNEL_SRCS)
SRCDIR=		../common

# There should be a mapfile here
MAPFILES =

LIBS +=		$(DYNLIB)

INCS += -I../common
INCS += -I../../../uts/common/fs/zfs
INCS += -I../../../uts/common/fs/zfs/lua
INCS += -I../../../common/zfs
INCS += -I../../../common
INCS += -I../../libzutil/common


CLEANFILES += ../common/zfs.h
CLEANFILES += $(EXTPICS)

$(LIBS): ../common/zfs.h

CSTD=	$(CSTD_GNU99)

CFLAGS +=	$(CCGDEBUG) $(CCVERBOSE)
CFLAGS64 +=	$(CCGDEBUG) $(CCVERBOSE)
LDLIBS +=	-lcmdutils -lumem -lavl -lnvpair -lz -lc -lmd \
		-lfakekernel -lzutil
# Hammerhead: DTrace DOF section (.SUNW_dof) contains relocations that are
# resolved by the kernel at runtime.  GNU ld places this section in a
# read-only segment and rejects the relocations with -z text.  Override
# ZTEXT (used in DYNFLAGS for shared library linking) to allow text relocs.
ZTEXT =	-Wl,-znotext
CPPFLAGS.first =	-I$(SRC)/lib/libfakekernel/common
# The in-gate lz4 headers must take precedence over any that may appear in an
# adjunct.
CPPFLAGS.first +=	-I$(SRC)/common/lz4
CPPFLAGS +=	$(INCS)	-DDEBUG -D_FAKE_KERNEL

CERRWARN +=	-Wno-parentheses
CERRWARN +=	-Wno-switch
CERRWARN +=	-Wno-type-limits
CERRWARN +=	-Wno-unused-variable
CERRWARN +=	-Wno-empty-body
CERRWARN +=	-Wno-unused-function

# not linted
SMATCH=off

.KEEP_STATE:

all: $(LIBS)

include ../../Makefile.targ

EXTPICS= $(DTRACE_OBJS:%=pics/%)

# Ensure generated dtrace header exists before any compilation
$(OBJS) $(PICS) : ../common/zfs.h

pics/%.o: ../../../uts/common/fs/zfs/%.c ../common/zfs.h
	$(COMPILE.c) -o $@ $<
	$(POST_PROCESS_O)

pics/%.o: ../../../uts/common/fs/zfs/lua/%.c
	$(COMPILE.c) -o $@ $<
	$(POST_PROCESS_O)

pics/%.o: ../../../common/zfs/%.c ../common/zfs.h
	$(COMPILE.c) -o $@ $<
	$(POST_PROCESS_O)

pics/%.o: ../../../common/lz4/%.c ../common/zfs.h
	$(COMPILE.c) -o $@ $<
	$(POST_PROCESS_O)

pics/%.o: ../common/%.d $(PICS)
	$(COMPILE.d) -C -s $< -o $@ $(PICS)
	$(POST_PROCESS_O)

../common/%.h: ../common/%.d
	$(DTRACE) -xnolibs -h -s $< -o $@
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (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 2005 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

include ../Makefile.com
include ../../Makefile.lib.64

install: all $(ROOTLIBS64) $(ROOTLINKS64)
/*
 * 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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
 * Copyright 2020 Joyent, Inc.
 * Copyright 2017 RackTop Systems.
 */

#include <assert.h>
#include <fcntl.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <zlib.h>
#include <libgen.h>
#include <sys/spa.h>
#include <sys/stat.h>
#include <sys/processor.h>
#include <sys/zfs_context.h>
#include <zfs_fletcher.h>
#include <sys/rrwlock.h>
#include <sys/zmod.h>
#include <sys/utsname.h>
#include <sys/systeminfo.h>
#include <libzutil.h>
#include <sys/crypto/common.h>
#include <sys/crypto/impl.h>
#include <sys/crypto/api.h>
#include <sys/sha2.h>
#include <crypto/aes/aes_impl.h>

extern void system_taskq_init(void);
extern void system_taskq_fini(void);

/*
 * Emulation of kernel services in userland.
 */

pgcnt_t physmem;
vnode_t *rootdir = (vnode_t *)0xabcd1234;
char hw_serial[HW_HOSTID_LEN];
kmutex_t cpu_lock;
vmem_t *zio_arena = NULL;

/* If set, all blocks read will be copied to the specified directory. */
char *vn_dumpdir = NULL;

struct utsname utsname = {
	"userland", "libzpool", "1", "1", "na"
};

/*
 * =========================================================================
 * vnode operations
 * =========================================================================
 */
/*
 * Note: for the xxxat() versions of these functions, we assume that the
 * starting vp is always rootdir (which is true for spa_directory.c, the only
 * ZFS consumer of these interfaces).  We assert this is true, and then emulate
 * them by adding '/' in front of the path.
 */

/*ARGSUSED*/
int
vn_open(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2, int x3)
{
	int fd;
	int dump_fd;
	vnode_t *vp;
	int old_umask;
	char realpath[MAXPATHLEN];
	struct stat64 st;

	/*
	 * If we're accessing a real disk from userland, we need to use
	 * the character interface to avoid caching.  This is particularly
	 * important if we're trying to look at a real in-kernel storage
	 * pool from userland, e.g. via zdb, because otherwise we won't
	 * see the changes occurring under the segmap cache.
	 * On the other hand, the stupid character device returns zero
	 * for its size.  So -- gag -- we open the block device to get
	 * its size, and remember it for subsequent VOP_GETATTR().
	 */
	if (strncmp(path, "/dev/", 5) == 0) {
		char *dsk;
		fd = open64(path, O_RDONLY);
		if (fd == -1)
			return (errno);
		if (fstat64(fd, &st) == -1) {
			close(fd);
			return (errno);
		}
		close(fd);
		(void) sprintf(realpath, "%s", path);
		dsk = strstr(path, "/dsk/");
		if (dsk != NULL)
			(void) sprintf(realpath + (dsk - path) + 1, "r%s",
			    dsk + 1);
	} else {
		(void) sprintf(realpath, "%s", path);
		if (!(flags & FCREAT) && stat64(realpath, &st) == -1)
			return (errno);
	}

	if (flags & FCREAT)
		old_umask = umask(0);

	/*
	 * The construct 'flags - FREAD' conveniently maps combinations of
	 * FREAD and FWRITE to the corresponding O_RDONLY, O_WRONLY, and O_RDWR.
	 */
	fd = open64(realpath, flags - FREAD, mode);

	if (flags & FCREAT)
		(void) umask(old_umask);

	if (vn_dumpdir != NULL) {
		char dumppath[MAXPATHLEN];
		(void) snprintf(dumppath, sizeof (dumppath),
		    "%s/%s", vn_dumpdir, basename(realpath));
		dump_fd = open64(dumppath, O_CREAT | O_WRONLY, 0666);
		if (dump_fd == -1)
			return (errno);
	} else {
		dump_fd = -1;
	}

	if (fd == -1)
		return (errno);

	if (fstat64(fd, &st) == -1) {
		close(fd);
		return (errno);
	}

	(void) fcntl(fd, F_SETFD, FD_CLOEXEC);

	*vpp = vp = umem_zalloc(sizeof (vnode_t), UMEM_NOFAIL);

	vp->v_fd = fd;
	vp->v_size = st.st_size;
	vp->v_path = spa_strdup(path);
	vp->v_dump_fd = dump_fd;

	return (0);
}

/*ARGSUSED*/
int
vn_openat(char *path, int x1, int flags, int mode, vnode_t **vpp, int x2,
    int x3, vnode_t *startvp, int fd)
{
	char *realpath = umem_alloc(strlen(path) + 2, UMEM_NOFAIL);
	int ret;

	ASSERT(startvp == rootdir);
	(void) sprintf(realpath, "/%s", path);

	/* fd ignored for now, need if want to simulate nbmand support */
	ret = vn_open(realpath, x1, flags, mode, vpp, x2, x3);

	umem_free(realpath, strlen(path) + 2);

	return (ret);
}

/*ARGSUSED*/
int
vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, offset_t offset,
    int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp)
{
	ssize_t iolen, split;

	if (uio == UIO_READ) {
		iolen = pread64(vp->v_fd, addr, len, offset);
		if (vp->v_dump_fd != -1) {
			int status =
			    pwrite64(vp->v_dump_fd, addr, iolen, offset);
			ASSERT(status != -1);
		}
	} else {
		/*
		 * To simulate partial disk writes, we split writes into two
		 * system calls so that the process can be killed in between.
		 */
		int sectors = len >> SPA_MINBLOCKSHIFT;
		split = (sectors > 0 ? rand() % sectors : 0) <<
		    SPA_MINBLOCKSHIFT;
		iolen = pwrite64(vp->v_fd, addr, split, offset);
		iolen += pwrite64(vp->v_fd, (char *)addr + split,
		    len - split, offset + split);
	}

	if (iolen == -1)
		return (errno);
	if (residp)
		*residp = len - iolen;
	else if (iolen != len)
		return (EIO);
	return (0);
}

void
vn_close(vnode_t *vp)
{
	close(vp->v_fd);
	if (vp->v_dump_fd != -1)
		close(vp->v_dump_fd);
	spa_strfree(vp->v_path);
	umem_free(vp, sizeof (vnode_t));
}

/*
 * At a minimum we need to update the size since vdev_reopen()
 * will no longer call vn_openat().
 */
int
fop_getattr(vnode_t *vp, vattr_t *vap)
{
	struct stat64 st;

	if (fstat64(vp->v_fd, &st) == -1) {
		close(vp->v_fd);
		return (errno);
	}

	vap->va_size = st.st_size;
	return (0);
}

#ifdef ZFS_DEBUG

/*
 * =========================================================================
 * Figure out which debugging statements to print
 * =========================================================================
 */

static char *dprintf_string;
static int dprintf_print_all;

int
dprintf_find_string(const char *string)
{
	char *tmp_str = dprintf_string;
	int len = strlen(string);

	/*
	 * Find out if this is a string we want to print.
	 * String format: file1.c,function_name1,file2.c,file3.c
	 */

	while (tmp_str != NULL) {
		if (strncmp(tmp_str, string, len) == 0 &&
		    (tmp_str[len] == ',' || tmp_str[len] == '\0'))
			return (1);
		tmp_str = strchr(tmp_str, ',');
		if (tmp_str != NULL)
			tmp_str++; /* Get rid of , */
	}
	return (0);
}

void
dprintf_setup(int *argc, char **argv)
{
	int i, j;

	/*
	 * Debugging can be specified two ways: by setting the
	 * environment variable ZFS_DEBUG, or by including a
	 * "debug=..."  argument on the command line.  The command
	 * line setting overrides the environment variable.
	 */

	for (i = 1; i < *argc; i++) {
		int len = strlen("debug=");
		/* First look for a command line argument */
		if (strncmp("debug=", argv[i], len) == 0) {
			dprintf_string = argv[i] + len;
			/* Remove from args */
			for (j = i; j < *argc; j++)
				argv[j] = argv[j+1];
			argv[j] = NULL;
			(*argc)--;
		}
	}

	if (dprintf_string == NULL) {
		/* Look for ZFS_DEBUG environment variable */
		dprintf_string = getenv("ZFS_DEBUG");
	}

	/*
	 * Are we just turning on all debugging?
	 */
	if (dprintf_find_string("on"))
		dprintf_print_all = 1;

	if (dprintf_string != NULL)
		zfs_flags |= ZFS_DEBUG_DPRINTF;
}

/*
 * =========================================================================
 * debug printfs
 * =========================================================================
 */
void
__dprintf(const char *file, const char *func, int line, const char *fmt, ...)
{
	const char *newfile;
	va_list adx;

	/*
	 * Get rid of annoying "../common/" prefix to filename.
	 */
	newfile = strrchr(file, '/');
	if (newfile != NULL) {
		newfile = newfile + 1; /* Get rid of leading / */
	} else {
		newfile = file;
	}

	if (dprintf_print_all ||
	    dprintf_find_string(newfile) ||
	    dprintf_find_string(func)) {
		/* Print out just the function name if requested */
		flockfile(stdout);
		if (dprintf_find_string("pid"))
			(void) printf("%d ", getpid());
		if (dprintf_find_string("tid"))
			(void) printf("%u ", thr_self());
		if (dprintf_find_string("cpu"))
			(void) printf("%u ", getcpuid());
		if (dprintf_find_string("time"))
			(void) printf("%llu ", gethrtime());
		if (dprintf_find_string("long"))
			(void) printf("%s, line %d: ", newfile, line);
		(void) printf("%s: ", func);
		va_start(adx, fmt);
		(void) vprintf(fmt, adx);
		va_end(adx);
		funlockfile(stdout);
	}
}

#endif /* ZFS_DEBUG */

/*
 * =========================================================================
 * kobj interfaces
 * =========================================================================
 */
struct _buf *
kobj_open_file(char *name)
{
	struct _buf *file;
	vnode_t *vp;

	/* set vp as the _fd field of the file */
	if (vn_openat(name, UIO_SYSSPACE, FREAD, 0, &vp, 0, 0, rootdir,
	    -1) != 0)
		return ((void *)-1UL);

	file = umem_zalloc(sizeof (struct _buf), UMEM_NOFAIL);
	file->_fd = (intptr_t)vp;
	return (file);
}

int
kobj_read_file(struct _buf *file, char *buf, unsigned size, unsigned off)
{
	ssize_t resid;

	vn_rdwr(UIO_READ, (vnode_t *)file->_fd, buf, size, (offset_t)off,
	    UIO_SYSSPACE, 0, 0, 0, &resid);

	return (size - resid);
}

void
kobj_close_file(struct _buf *file)
{
	vn_close((vnode_t *)file->_fd);
	umem_free(file, sizeof (struct _buf));
}

int
kobj_get_filesize(struct _buf *file, uint64_t *size)
{
	struct stat64 st;
	vnode_t *vp = (vnode_t *)file->_fd;

	if (fstat64(vp->v_fd, &st) == -1) {
		vn_close(vp);
		return (errno);
	}
	*size = st.st_size;
	return (0);
}

/*
 * =========================================================================
 * misc routines
 * =========================================================================
 */

/*
 * Find lowest one bit set.
 * Returns bit number + 1 of lowest bit that is set, otherwise returns 0.
 * This is basically a reimplementation of ffsll(), which is GNU specific.
 */
int
lowbit64(uint64_t i)
{
	register int h = 64;
	if (i == 0)
		return (0);

	if (i & 0x00000000ffffffffULL)
		h -= 32;
	else
		i >>= 32;

	if (i & 0x0000ffff)
		h -= 16;
	else
		i >>= 16;

	if (i & 0x00ff)
		h -= 8;
	else
		i >>= 8;

	if (i & 0x0f)
		h -= 4;
	else
		i >>= 4;

	if (i & 0x3)
		h -= 2;
	else
		i >>= 2;

	if (i & 0x1)
		h -= 1;

	return (h);
}

int
highbit64(uint64_t i)
{
	int h = 1;

	if (i == 0)
		return (0);
	if (i & 0xffffffff00000000ULL) {
		h += 32; i >>= 32;
	}
	if (i & 0xffff0000) {
		h += 16; i >>= 16;
	}
	if (i & 0xff00) {
		h += 8; i >>= 8;
	}
	if (i & 0xf0) {
		h += 4; i >>= 4;
	}
	if (i & 0xc) {
		h += 2; i >>= 2;
	}
	if (i & 0x2) {
		h += 1;
	}
	return (h);
}

/*
 * =========================================================================
 * kernel emulation setup & teardown
 * =========================================================================
 */
static int
umem_out_of_memory(void)
{
	char errmsg[] = "out of memory -- generating core dump\n";

	write(fileno(stderr), errmsg, sizeof (errmsg));
	abort();
	return (0);
}

void
kernel_init(int mode)
{
	extern uint_t rrw_tsd_key;

	umem_nofail_callback(umem_out_of_memory);

	physmem = sysconf(_SC_PHYS_PAGES);

	dprintf_zfs("physmem = %llu pages (%.2f GB)\n", physmem,
	    (double)physmem * sysconf(_SC_PAGE_SIZE) / (1ULL << 30));

	(void) snprintf(hw_serial, sizeof (hw_serial), "%ld",
	    (mode & FWRITE) ? get_system_hostid() : 0);

	system_taskq_init();

	mutex_init(&cpu_lock, NULL, MUTEX_DEFAULT, NULL);

	spa_init(mode);

	fletcher_4_init();

	tsd_create(&rrw_tsd_key, rrw_tsd_destroy);
}

void
kernel_fini(void)
{
	fletcher_4_fini();

	spa_fini();

	system_taskq_fini();
}

/* ARGSUSED */
uint32_t
zone_get_hostid(void *zonep)
{
	/*
	 * We're emulating the system's hostid in userland.
	 */
	return (strtoul(hw_serial, NULL, 10));
}

int
z_uncompress(void *dst, size_t *dstlen, const void *src, size_t srclen)
{
	int ret;
	uLongf len = *dstlen;

	if ((ret = uncompress(dst, &len, src, srclen)) == Z_OK)
		*dstlen = (size_t)len;

	return (ret);
}

int
z_compress_level(void *dst, size_t *dstlen, const void *src, size_t srclen,
    int level)
{
	int ret;
	uLongf len = *dstlen;

	if ((ret = compress2(dst, &len, src, srclen, level)) == Z_OK)
		*dstlen = (size_t)len;

	return (ret);
}

int
zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr)
{
	return (0);
}

int
zfs_secpolicy_rename_perms(const char *from, const char *to, cred_t *cr)
{
	return (0);
}

int
zfs_secpolicy_destroy_perms(const char *name, cred_t *cr)
{
	return (0);
}

/* ARGSUSED */
int
zfs_onexit_fd_hold(int fd, minor_t *minorp)
{
	*minorp = 0;
	return (0);
}

/* ARGSUSED */
void
zfs_onexit_fd_rele(int fd)
{
}

/* ARGSUSED */
int
zfs_onexit_add_cb(minor_t minor, void (*func)(void *), void *data,
    uint64_t *action_handle)
{
	return (0);
}

/* ARGSUSED */
int
zfs_onexit_del_cb(minor_t minor, uint64_t action_handle, boolean_t fire)
{
	return (0);
}

/* ARGSUSED */
int
zfs_onexit_cb_data(minor_t minor, uint64_t action_handle, void **data)
{
	return (0);
}

void
bioinit(buf_t *bp)
{
	bzero(bp, sizeof (buf_t));
}

void
biodone(buf_t *bp)
{
	if (bp->b_iodone != NULL) {
		(*(bp->b_iodone))(bp);
		return;
	}
	ASSERT((bp->b_flags & B_DONE) == 0);
	bp->b_flags |= B_DONE;
}

void
bioerror(buf_t *bp, int error)
{
	ASSERT(bp != NULL);
	ASSERT(error >= 0);

	if (error != 0) {
		bp->b_flags |= B_ERROR;
	} else {
		bp->b_flags &= ~B_ERROR;
	}
	bp->b_error = error;
}


int
geterror(struct buf *bp)
{
	int error = 0;

	if (bp->b_flags & B_ERROR) {
		error = bp->b_error;
		if (!error)
			error = EIO;
	}
	return (error);
}

int
crypto_create_ctx_template(crypto_mechanism_t *mech,
    crypto_key_t *key, crypto_ctx_template_t *tmpl, int kmflag)
{
	return (0);
}

crypto_mech_type_t
crypto_mech2id(const char *name)
{
	return (CRYPTO_MECH_INVALID);
}

int
crypto_mac(crypto_mechanism_t *mech, crypto_data_t *data,
    crypto_key_t *key, crypto_ctx_template_t impl,
    crypto_data_t *mac, crypto_call_req_t *cr)
{
	return (0);
}

int
crypto_encrypt(crypto_mechanism_t *mech, crypto_data_t *plaintext,
    crypto_key_t *key, crypto_ctx_template_t tmpl,
    crypto_data_t *ciphertext, crypto_call_req_t *cr)
{
	return (0);
}

/* This could probably be a weak reference */
int
crypto_decrypt(crypto_mechanism_t *mech, crypto_data_t *plaintext,
    crypto_key_t *key, crypto_ctx_template_t tmpl,
    crypto_data_t *ciphertext, crypto_call_req_t *cr)
{
	return (0);
}


int
crypto_digest_final(crypto_context_t context, crypto_data_t *digest,
    crypto_call_req_t *cr)
{
	return (0);
}

int
crypto_digest_update(crypto_context_t context, crypto_data_t *data,
    crypto_call_req_t *cr)
{
	return (0);
}

int
crypto_digest_init(crypto_mechanism_t *mech, crypto_context_t *ctxp,
    crypto_call_req_t  *crq)
{
	return (0);
}

void
crypto_destroy_ctx_template(crypto_ctx_template_t tmpl)
{
}

extern int crypto_mac_init(crypto_mechanism_t *mech, crypto_key_t *key,
	crypto_ctx_template_t tmpl, crypto_context_t *ctxp,
    crypto_call_req_t *cr)
{
	return (0);
}

extern int crypto_mac_update(crypto_context_t ctx, crypto_data_t *data,
	crypto_call_req_t *cr)
{
	return (0);
}

extern int crypto_mac_final(crypto_context_t ctx, crypto_data_t *data,
	crypto_call_req_t *cr)
{
	return (0);
}
/*
 * 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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
 * Copyright (c) 2012, 2016 by Delphix. All rights reserved.
 * Copyright 2019 Joyent, Inc.
 * Copyright 2017 RackTop Systems.
 */

#ifndef _SYS_ZFS_CONTEXT_H
#define	_SYS_ZFS_CONTEXT_H

#ifdef	__cplusplus
extern "C" {
#endif

#define	_SYNCH_H

#define	_SYS_VNODE_H
#define	_SYS_VFS_H
#define	_SYS_CALLB_H

#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdarg.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <strings.h>
#include <thread.h>
#include <assert.h>
#include <alloca.h>
#include <umem.h>
#include <limits.h>
#include <atomic.h>
#include <dirent.h>
#include <time.h>
#include <procfs.h>
#include <pthread.h>
#include <setjmp.h>
#include <sys/debug.h>
#include <libsysevent.h>
#include <sys/note.h>
#include <sys/types.h>
#include <sys/cred.h>
#include <sys/sysmacros.h>
#include <sys/bitmap.h>
#include <sys/resource.h>
#include <sys/byteorder.h>
#include <sys/list.h>
#include <sys/uio.h>
#include <sys/zfs_debug.h>
#include <sys/sdt.h>
#include <sys/kstat.h>
#include <sys/u8_textprep.h>
#include <sys/sysevent/eventdefs.h>
#include <sys/sysevent/dev.h>
#include <sys/debug.h>
#include <sys/taskq.h>
#include <sys/taskq_impl.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/condvar.h>
#include <sys/cmn_err.h>
#include <sys/kmem.h>
#include <sys/systm.h>
#include <sys/random.h>
#include <sys/buf.h>
#include <sys/sid.h>
#include <sys/acl.h>
#include <sys/bitmap.h>
#include <sys/systeminfo.h>
#include <sys/cpuvar.h>
#include <sys/pset.h>
#include <sys/kobj.h>
#include <sys/fm/util.h>
#include "zfs.h"

/*
 * ZFS debugging
 */

#ifdef ZFS_DEBUG
extern void dprintf_setup(int *argc, char **argv);
#endif /* ZFS_DEBUG */

/*
 * DTrace SDT probes have different signatures in userland than they do in
 * the kernel.  If they're being used in kernel code, re-define them out of
 * existence for their counterparts in libzpool.
 *
 * Here's an example of how to use the set-error probes in userland:
 * zfs$target:::set-error /arg0 == EBUSY/ {stack();}
 *
 * Here's an example of how to use DTRACE_PROBE probes in userland:
 * If there is a probe declared as follows:
 * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn);
 * Then you can use it as follows:
 * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/
 *     {printf("%u %p\n", arg1, arg2);}
 */

#ifdef DTRACE_PROBE
#undef	DTRACE_PROBE
#endif	/* DTRACE_PROBE */
#define	DTRACE_PROBE(a) \
	ZFS_PROBE0(#a)

#ifdef DTRACE_PROBE1
#undef	DTRACE_PROBE1
#endif	/* DTRACE_PROBE1 */
#define	DTRACE_PROBE1(a, b, c) \
	ZFS_PROBE1(#a, (unsigned long)c)

#ifdef DTRACE_PROBE2
#undef	DTRACE_PROBE2
#endif	/* DTRACE_PROBE2 */
#define	DTRACE_PROBE2(a, b, c, d, e) \
	ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e)

#ifdef DTRACE_PROBE3
#undef	DTRACE_PROBE3
#endif	/* DTRACE_PROBE3 */
#define	DTRACE_PROBE3(a, b, c, d, e, f, g) \
	ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g)

#ifdef DTRACE_PROBE4
#undef	DTRACE_PROBE4
#endif	/* DTRACE_PROBE4 */
#define	DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \
	ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \
	(unsigned long)i)

/*
 * We use the comma operator so that this macro can be used without much
 * additional code.  For example, "return (EINVAL);" becomes
 * "return (SET_ERROR(EINVAL));".  Note that the argument will be evaluated
 * twice, so it should not have side effects (e.g. something like:
 * "return (SET_ERROR(log_error(EINVAL, info)));" would log the error twice).
 */
#define	SET_ERROR(err) (ZFS_SET_ERROR(err), err)

/*
 * Threads
 */
#define	kpreempt(x)	yield()
#define	newproc(f, a, cid, pri, ctp, pid)	(ENOSYS)

/*
 * vnodes
 */
#define	XVA_MAPSIZE	3
#define	XVA_MAGIC	0x78766174

typedef struct vnode {
	uint64_t	v_size;
	int		v_fd;
	char		*v_path;
	int		v_dump_fd;
} vnode_t;

extern char *vn_dumpdir;
#define	AV_SCANSTAMP_SZ	32		/* length of anti-virus scanstamp */

typedef struct xoptattr {
	timestruc_t	xoa_createtime;	/* Create time of file */
	uint8_t		xoa_archive;
	uint8_t		xoa_system;
	uint8_t		xoa_readonly;
	uint8_t		xoa_hidden;
	uint8_t		xoa_nounlink;
	uint8_t		xoa_immutable;
	uint8_t		xoa_appendonly;
	uint8_t		xoa_nodump;
	uint8_t		xoa_settable;
	uint8_t		xoa_opaque;
	uint8_t		xoa_av_quarantined;
	uint8_t		xoa_av_modified;
	uint8_t		xoa_av_scanstamp[AV_SCANSTAMP_SZ];
	uint8_t		xoa_reparse;
	uint8_t		xoa_offline;
	uint8_t		xoa_sparse;
} xoptattr_t;

typedef struct vattr {
	uint_t		va_mask;	/* bit-mask of attributes */
	u_offset_t	va_size;	/* file size in bytes */
} vattr_t;


typedef struct xvattr {
	vattr_t		xva_vattr;	/* Embedded vattr structure */
	uint32_t	xva_magic;	/* Magic Number */
	uint32_t	xva_mapsize;	/* Size of attr bitmap (32-bit words) */
	uint32_t	*xva_rtnattrmapp;	/* Ptr to xva_rtnattrmap[] */
	uint32_t	xva_reqattrmap[XVA_MAPSIZE];	/* Requested attrs */
	uint32_t	xva_rtnattrmap[XVA_MAPSIZE];	/* Returned attrs */
	xoptattr_t	xva_xoptattrs;	/* Optional attributes */
} xvattr_t;

typedef struct vsecattr {
	uint_t		vsa_mask;	/* See below */
	int		vsa_aclcnt;	/* ACL entry count */
	void		*vsa_aclentp;	/* pointer to ACL entries */
	int		vsa_dfaclcnt;	/* default ACL entry count */
	void		*vsa_dfaclentp;	/* pointer to default ACL entries */
	size_t		vsa_aclentsz;	/* ACE size in bytes of vsa_aclentp */
} vsecattr_t;

#define	AT_TYPE		0x00001
#define	AT_MODE		0x00002
#define	AT_UID		0x00004
#define	AT_GID		0x00008
#define	AT_FSID		0x00010
#define	AT_NODEID	0x00020
#define	AT_NLINK	0x00040
#define	AT_SIZE		0x00080
#define	AT_ATIME	0x00100
#define	AT_MTIME	0x00200
#define	AT_CTIME	0x00400
#define	AT_RDEV		0x00800
#define	AT_BLKSIZE	0x01000
#define	AT_NBLOCKS	0x02000
#define	AT_SEQ		0x08000
#define	AT_XVATTR	0x10000

#define	CRCREAT		0

extern int fop_getattr(vnode_t *vp, vattr_t *vap);

#define	VOP_CLOSE(vp, f, c, o, cr, ct)	0
#define	VOP_PUTPAGE(vp, of, sz, fl, cr, ct)	0
#define	VOP_GETATTR(vp, vap, fl, cr, ct)  fop_getattr((vp), (vap));
#define	VOP_SPACE(vp, cmd, a, f, o, cr, ct)  0

#define	VOP_FSYNC(vp, f, cr, ct)	fsync((vp)->v_fd)

#define	VN_RELE(vp)	vn_close(vp)

extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp,
    int x2, int x3);
extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp,
    int x2, int x3, vnode_t *vp, int fd);
extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len,
    offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp);
extern void vn_close(vnode_t *vp);

#define	vn_remove(path, x1, x2)		remove(path)
#define	vn_rename(from, to, seg)	rename((from), (to))
#define	vn_is_readonly(vp)		B_FALSE

extern vnode_t *rootdir;

#include <sys/file.h>		/* for FREAD, FWRITE, etc */
#include <sys/sunddi.h>		/* for ddi_strtoul, ddi_strtoull, etc */
#include <sys/cyclic.h>		/* for cyclic_add, cyclic remove, etc */
#include <vm/seg_kmem.h>	/* for zio_arena */

/*
 * Random stuff
 */
#define	max_ncpus	64
#define	boot_ncpus	(sysconf(_SC_NPROCESSORS_ONLN))

#define	minclsyspri	60
#define	maxclsyspri	99

#if (GCC_VERSION >= 302) || (__INTEL_COMPILER >= 800) || defined(__clang__)
#define	_zfs_expect(expr, value)    (__builtin_expect((expr), (value)))
#else
#define	_zfs_expect(expr, value)    (expr)
#endif

#define	likely(x)	_zfs_expect((x) != 0, 1)
#define	unlikely(x)	_zfs_expect((x) != 0, 0)

#define	CPU_SEQID	(thr_self() & (max_ncpus - 1))

extern void kernel_init(int);
extern void kernel_fini(void);

struct spa;
extern void show_pool_stats(struct spa *);
extern int set_global_var(char *arg);

typedef struct callb_cpr {
	kmutex_t	*cc_lockp;
} callb_cpr_t;

#define	CALLB_CPR_INIT(cp, lockp, func, name)	{		\
	(cp)->cc_lockp = lockp;					\
}

#define	CALLB_CPR_SAFE_BEGIN(cp) {				\
	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
}

#define	CALLB_CPR_SAFE_END(cp, lockp) {				\
	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
}

#define	CALLB_CPR_EXIT(cp) {					\
	ASSERT(MUTEX_HELD((cp)->cc_lockp));			\
	mutex_exit((cp)->cc_lockp);				\
}

#define	zone_dataset_visible(x, y)	(1)
#define	INGLOBALZONE(z)			(1)
extern uint32_t zone_get_hostid(void *zonep);

/*
 * In ZoL the following defines were added to their sys/avl.h header, but
 * we want to limit these to the ZFS code on illumos.
 */
#define	TREE_ISIGN(a)	(((a) > 0) - ((a) < 0))
#define	TREE_CMP(a, b)	(((a) > (b)) - ((a) < (b)))
#define	TREE_PCMP(a, b)	\
	(((uintptr_t)(a) > (uintptr_t)(b)) - ((uintptr_t)(a) < (uintptr_t)(b)))

extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
extern int zfs_secpolicy_rename_perms(const char *from, const char *to,
    cred_t *cr);
extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);

#define	ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \
	sysevent_post_event(_c, _d, _b, "libzpool", _e, _f)

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_ZFS_CONTEXT_H */
/*
 * 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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2016 by Delphix. All rights reserved.
 * Copyright 2017 RackTop Systems.
 * Copyright (c) 2017, Intel Corporation.
 * Copyright 2020 Joyent, Inc.
 */

#include <assert.h>
#include <sys/zfs_context.h>
#include <sys/avl.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/spa.h>
#include <sys/fs/zfs.h>
#include <sys/refcount.h>
#include <sys/zfs_ioctl.h>
#include <dlfcn.h>
#include <libzutil.h>

extern void nicenum(uint64_t num, char *buf, size_t);

/*
 * Routines needed by more than one client of libzpool.
 */

static void
show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent)
{
	vdev_stat_t *vs;
	vdev_stat_t *v0 = { 0 };
	uint64_t sec;
	uint64_t is_log = 0;
	nvlist_t **child;
	uint_t c, children;
	char used[6], avail[6];
	char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6];

	v0 = umem_zalloc(sizeof (*v0), UMEM_NOFAIL);

	if (indent == 0 && desc != NULL) {
		(void) printf("                           "
		    " capacity   operations   bandwidth  ---- errors ----\n");
		(void) printf("description                "
		    "used avail  read write  read write  read write cksum\n");
	}

	if (desc != NULL) {
		char *suffix = "", *bias = NULL;
		char bias_suffix[32];

		(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
		(void) nvlist_lookup_string(nv, ZPOOL_CONFIG_ALLOCATION_BIAS,
		    &bias);
		if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
		    (uint64_t **)&vs, &c) != 0)
			vs = v0;

		if (bias != NULL) {
			(void) snprintf(bias_suffix, sizeof (bias_suffix),
			    " (%s)", bias);
			suffix = bias_suffix;
		} else if (is_log) {
			suffix = " (log)";
		}

		sec = MAX(1, vs->vs_timestamp / NANOSEC);

		nicenum(vs->vs_alloc, used, sizeof (used));
		nicenum(vs->vs_space - vs->vs_alloc, avail, sizeof (avail));
		nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops, sizeof (rops));
		nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops, sizeof (wops));
		nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes,
		    sizeof (rbytes));
		nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes,
		    sizeof (wbytes));
		nicenum(vs->vs_read_errors, rerr, sizeof (rerr));
		nicenum(vs->vs_write_errors, werr, sizeof (werr));
		nicenum(vs->vs_checksum_errors, cerr, sizeof (cerr));

		(void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n",
		    indent, "",
		    desc,
		    (int)(indent+strlen(desc)-25-(vs->vs_space ? 0 : 12)),
		    suffix,
		    vs->vs_space ? 6 : 0, vs->vs_space ? used : "",
		    vs->vs_space ? 6 : 0, vs->vs_space ? avail : "",
		    rops, wops, rbytes, wbytes, rerr, werr, cerr);
	}
	umem_free(v0, sizeof (*v0));

	if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0)
		return;

	for (c = 0; c < children; c++) {
		nvlist_t *cnv = child[c];
		char *cname, *tname;
		uint64_t np;
		if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) &&
		    nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname))
			cname = "<unknown>";
		tname = calloc(1, strlen(cname) + 2);
		(void) strcpy(tname, cname);
		if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0)
			tname[strlen(tname)] = '0' + np;
		show_vdev_stats(tname, ctype, cnv, indent + 2);
		free(tname);
	}
}

void
show_pool_stats(spa_t *spa)
{
	nvlist_t *config, *nvroot;
	char *name;

	VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0);

	VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
	    &nvroot) == 0);
	VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
	    &name) == 0);

	show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0);
	show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0);
	show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0);

	nvlist_free(config);
}

/*
 * Sets given global variable in libzpool to given unsigned 32-bit value.
 * arg: "<variable>=<value>"
 */
int
set_global_var(char *arg)
{
	void *zpoolhdl;
	char *varname = arg, *varval;
	u_longlong_t val;

#ifndef _LITTLE_ENDIAN
	/*
	 * On big endian systems changing a 64-bit variable would set the high
	 * 32 bits instead of the low 32 bits, which could cause unexpected
	 * results.
	 */
	fprintf(stderr, "Setting global variables is only supported on "
	    "little-endian systems\n", varname);
	return (ENOTSUP);
#endif
	if ((varval = strchr(arg, '=')) != NULL) {
		*varval = '\0';
		varval++;
		val = strtoull(varval, NULL, 0);
		if (val > UINT32_MAX) {
			fprintf(stderr, "Value for global variable '%s' must "
			    "be a 32-bit unsigned integer\n", varname);
			return (EOVERFLOW);
		}
	} else {
		return (EINVAL);
	}

	zpoolhdl = dlopen("libzpool.so", RTLD_LAZY);
	if (zpoolhdl != NULL) {
		uint32_t *var;
		var = dlsym(zpoolhdl, varname);
		if (var == NULL) {
			fprintf(stderr, "Global variable '%s' does not exist "
			    "in libzpool.so\n", varname);
			return (EINVAL);
		}
		*var = (uint32_t)val;

		dlclose(zpoolhdl);
	} else {
		fprintf(stderr, "Failed to open libzpool.so to set global "
		    "variable\n");
		return (EIO);
	}

	return (0);
}

static nvlist_t *
refresh_config(void *unused, nvlist_t *tryconfig)
{
	return (spa_tryimport(tryconfig));
}

static int
pool_active(void *unused, const char *name, uint64_t guid,
    boolean_t *isactive)
{
	zfs_cmd_t *zcp;
	nvlist_t *innvl;
	char *packed = NULL;
	size_t size = 0;
	int fd, ret;

	/*
	 * Use ZFS_IOC_POOL_SYNC to confirm if a pool is active
	 */

	fd = open("/dev/zfs", O_RDWR);
	if (fd < 0)
		return (-1);

	zcp = umem_zalloc(sizeof (zfs_cmd_t), UMEM_NOFAIL);

	innvl = fnvlist_alloc();
	fnvlist_add_boolean_value(innvl, "force", B_FALSE);

	(void) strlcpy(zcp->zc_name, name, sizeof (zcp->zc_name));
	packed = fnvlist_pack(innvl, &size);
	zcp->zc_nvlist_src = (uint64_t)(uintptr_t)packed;
	zcp->zc_nvlist_src_size = size;

	ret = ioctl(fd, ZFS_IOC_POOL_SYNC, zcp);

	fnvlist_pack_free(packed, size);
	free((void *)(uintptr_t)zcp->zc_nvlist_dst);
	nvlist_free(innvl);
	umem_free(zcp, sizeof (zfs_cmd_t));

	(void) close(fd);

	*isactive = (ret == 0);

	return (0);
}

const pool_config_ops_t libzpool_config_ops = {
	.pco_refresh_config = refresh_config,
	.pco_pool_active = pool_active,
};
/*
 * CDDL HEADER START
 *
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2013 by Delphix. All rights reserved.
 */

provider zfs {
	probe probe0(char *probename);
	probe probe1(char *probename, unsigned long arg1);
	probe probe2(char *probename, unsigned long arg1, unsigned long arg2);
	probe probe3(char *probename, unsigned long arg1, unsigned long arg2,
	    unsigned long arg3);
	probe probe4(char *probename, unsigned long arg1, unsigned long arg2,
	    unsigned long arg3, unsigned long arg4);

	probe set__error(int err);
};

#pragma D attributes Evolving/Evolving/ISA provider zfs provider
#pragma D attributes Private/Private/Unknown provider zfs module
#pragma D attributes Private/Private/Unknown provider zfs function
#pragma D attributes Evolving/Evolving/ISA provider zfs name
#pragma D attributes Evolving/Evolving/ISA provider zfs args
#!/bin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License, Version 1.0 only
# (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 2005 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#ident	"%Z%%M%	%I%	%E% SMI"

find_files "s.*" usr/src/common/zfs
find_files "s.*" usr/src/uts/common/fs/zfs/sys
echo_file usr/src/uts/common/sys/fs/zfs.h