folkslinux
/
zfs
mirror of https://github.com/openzfs/zfs.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Add basic zfs ioc input nvpair validation 

We want newer versions of libzfs_core to run against an existing
zfs kernel module (i.e. a deferred reboot or module reload after
an update).

Programmatically document, via a zfs_ioc_key_t, the valid arguments 
for the ioc commands that rely on nvpair input arguments (i.e. non 
legacy commands from libzfs_core). Automatically verify the expected 
pairs before dispatching a command.

This initial phase focuses on the non-legacy ioctls. A follow-on 
change can address the legacy ioctl input from the zfs_cmd_t.

The zfs_ioc_key_t for zfs_keys_channel_program looks like:

static const zfs_ioc_key_t zfs_keys_channel_program[] = {
       {"program",     DATA_TYPE_STRING,               0},
       {"arg",         DATA_TYPE_UNKNOWN,              0},
       {"sync",        DATA_TYPE_BOOLEAN_VALUE,        ZK_OPTIONAL},
       {"instrlimit",  DATA_TYPE_UINT64,               ZK_OPTIONAL},
       {"memlimit",    DATA_TYPE_UINT64,               ZK_OPTIONAL},
};

Introduce four input errors to identify specific input failures
(in addition to generic argument value errors like EINVAL, ERANGE, 
EBADF, and E2BIG).

ZFS_ERR_IOC_CMD_UNAVAIL the ioctl number is not supported by kernel
ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #7780
This commit is contained in:
Don Brady 2018-09-02 15:14:01 -04:00 committed by Brian Behlendorf
parent e8bcb693d6
commit b83a0e2dc1
15 changed files with 1513 additions and 196 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
cmd/zfs/zfs_main.c
View File

@ -7238,7 +7238,7 @@ zfs_do_bookmark(int argc, char **argv)
fnvlist_free(nvl);
if (ret != 0) {
const char *err_msg;
const char *err_msg = NULL;
char errbuf[1024];
(void) snprintf(errbuf, sizeof (errbuf),
@ -7265,11 +7265,13 @@ zfs_do_bookmark(int argc, char **argv)
err_msg = "dataset does not exist";
break;
default:
err_msg = "unknown error";
(void) zfs_standard_error(g_zfs, ret, errbuf);
break;
}
(void) fprintf(stderr, "%s: %s\n", errbuf,
dgettext(TEXT_DOMAIN, err_msg));
if (err_msg != NULL) {
(void) fprintf(stderr, "%s: %s\n", errbuf,
dgettext(TEXT_DOMAIN, err_msg));
}
}
return (ret != 0);
@ -7285,7 +7287,7 @@ zfs_do_channel_program(int argc, char **argv)
int ret, fd, c;
char *progbuf, *filename, *poolname;
size_t progsize, progread;
nvlist_t *outnvl;
nvlist_t *outnvl = NULL;
uint64_t instrlimit = ZCP_DEFAULT_INSTRLIMIT;
uint64_t memlimit = ZCP_DEFAULT_MEMLIMIT;
boolean_t sync_flag = B_TRUE, json_output = B_FALSE;
@ -7412,8 +7414,9 @@ zfs_do_channel_program(int argc, char **argv)
* falling back on strerror() for an unexpected return code.
*/
char *errstring = NULL;
const char *msg = gettext("Channel program execution failed");
uint64_t instructions = 0;
if (nvlist_exists(outnvl, ZCP_RET_ERROR)) {
if (outnvl != NULL && nvlist_exists(outnvl, ZCP_RET_ERROR)) {
(void) nvlist_lookup_string(outnvl,
ZCP_RET_ERROR, &errstring);
if (errstring == NULL)
@ -7442,12 +7445,12 @@ zfs_do_channel_program(int argc, char **argv)
"programs must be run as root.";
break;
default:
errstring = strerror(ret);
(void) zfs_standard_error(g_zfs, ret, msg);
}
}
(void) fprintf(stderr,
gettext("Channel program execution failed:\n%s\n"),
errstring);
if (errstring != NULL)
(void) fprintf(stderr, "%s:\n%s\n", msg, errstring);
if (ret == ETIME && instructions != 0)
(void) fprintf(stderr,
gettext("%llu Lua instructions\n"),

1
configure.ac
View File

@ -169,6 +169,7 @@ AC_CONFIG_FILES([
tests/zfs-tests/cmd/file_trunc/Makefile
tests/zfs-tests/cmd/file_write/Makefile
tests/zfs-tests/cmd/largest_file/Makefile
tests/zfs-tests/cmd/libzfs_input_check/Makefile
tests/zfs-tests/cmd/mkbusy/Makefile
tests/zfs-tests/cmd/mkfile/Makefile
tests/zfs-tests/cmd/mkfiles/Makefile

3
include/libzfs.h
View File

@ -21,7 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2017 by Delphix. All rights reserved.
* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright (c) 2012, Joyent, Inc. All rights reserved.
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2016, Intel Corporation.
@ -157,6 +157,7 @@ typedef enum zfs_error {
EZFS_NO_CHECKPOINT, /* pool has no checkpoint */
EZFS_DEVRM_IN_PROGRESS, /* a device is currently being removed */
EZFS_VDEV_TOO_BIG, /* a device is too big to be used */
EZFS_IOC_NOTSUPPORTED, /* operation not supported by zfs module */
EZFS_UNKNOWN
} zfs_error_t;

176
include/sys/fs/zfs.h
View File

@ -21,7 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2017 by Delphix. All rights reserved.
* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2013, 2017 Joyent, Inc. All rights reserved.
* Copyright (c) 2014 Integros [integros.com]
@ -1078,6 +1078,8 @@ typedef struct ddt_histogram {
/*
* /dev/zfs ioctl numbers.
*
* These numbers cannot change over time. New ioctl numbers must be appended.
*/
typedef enum zfs_ioc {
/*
@ -1085,93 +1087,93 @@ typedef enum zfs_ioc {
*/
ZFS_IOC_FIRST = ('Z' << 8),
ZFS_IOC = ZFS_IOC_FIRST,
ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST,
ZFS_IOC_POOL_DESTROY,
ZFS_IOC_POOL_IMPORT,
ZFS_IOC_POOL_EXPORT,
ZFS_IOC_POOL_CONFIGS,
ZFS_IOC_POOL_STATS,
ZFS_IOC_POOL_TRYIMPORT,
ZFS_IOC_POOL_SCAN,
ZFS_IOC_POOL_FREEZE,
ZFS_IOC_POOL_UPGRADE,
ZFS_IOC_POOL_GET_HISTORY,
ZFS_IOC_VDEV_ADD,
ZFS_IOC_VDEV_REMOVE,
ZFS_IOC_VDEV_SET_STATE,
ZFS_IOC_VDEV_ATTACH,
ZFS_IOC_VDEV_DETACH,
ZFS_IOC_VDEV_SETPATH,
ZFS_IOC_VDEV_SETFRU,
ZFS_IOC_OBJSET_STATS,
ZFS_IOC_OBJSET_ZPLPROPS,
ZFS_IOC_DATASET_LIST_NEXT,
ZFS_IOC_SNAPSHOT_LIST_NEXT,
ZFS_IOC_SET_PROP,
ZFS_IOC_CREATE,
ZFS_IOC_DESTROY,
ZFS_IOC_ROLLBACK,
ZFS_IOC_RENAME,
ZFS_IOC_RECV,
ZFS_IOC_SEND,
ZFS_IOC_INJECT_FAULT,
ZFS_IOC_CLEAR_FAULT,
ZFS_IOC_INJECT_LIST_NEXT,
ZFS_IOC_ERROR_LOG,
ZFS_IOC_CLEAR,
ZFS_IOC_PROMOTE,
ZFS_IOC_SNAPSHOT,
ZFS_IOC_DSOBJ_TO_DSNAME,
ZFS_IOC_OBJ_TO_PATH,
ZFS_IOC_POOL_SET_PROPS,
ZFS_IOC_POOL_GET_PROPS,
ZFS_IOC_SET_FSACL,
ZFS_IOC_GET_FSACL,
ZFS_IOC_SHARE,
ZFS_IOC_INHERIT_PROP,
ZFS_IOC_SMB_ACL,
ZFS_IOC_USERSPACE_ONE,
ZFS_IOC_USERSPACE_MANY,
ZFS_IOC_USERSPACE_UPGRADE,
ZFS_IOC_HOLD,
ZFS_IOC_RELEASE,
ZFS_IOC_GET_HOLDS,
ZFS_IOC_OBJSET_RECVD_PROPS,
ZFS_IOC_VDEV_SPLIT,
ZFS_IOC_NEXT_OBJ,
ZFS_IOC_DIFF,
ZFS_IOC_TMP_SNAPSHOT,
ZFS_IOC_OBJ_TO_STATS,
ZFS_IOC_SPACE_WRITTEN,
ZFS_IOC_SPACE_SNAPS,
ZFS_IOC_DESTROY_SNAPS,
ZFS_IOC_POOL_REGUID,
ZFS_IOC_POOL_REOPEN,
ZFS_IOC_SEND_PROGRESS,
ZFS_IOC_LOG_HISTORY,
ZFS_IOC_SEND_NEW,
ZFS_IOC_SEND_SPACE,
ZFS_IOC_CLONE,
ZFS_IOC_BOOKMARK,
ZFS_IOC_GET_BOOKMARKS,
ZFS_IOC_DESTROY_BOOKMARKS,
ZFS_IOC_CHANNEL_PROGRAM,
ZFS_IOC_RECV_NEW,
ZFS_IOC_POOL_SYNC,
ZFS_IOC_LOAD_KEY,
ZFS_IOC_UNLOAD_KEY,
ZFS_IOC_CHANGE_KEY,
ZFS_IOC_REMAP,
ZFS_IOC_POOL_CHECKPOINT,
ZFS_IOC_POOL_DISCARD_CHECKPOINT,
ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST, /* 0x5a00 */
ZFS_IOC_POOL_DESTROY, /* 0x5a01 */
ZFS_IOC_POOL_IMPORT, /* 0x5a02 */
ZFS_IOC_POOL_EXPORT, /* 0x5a03 */
ZFS_IOC_POOL_CONFIGS, /* 0x5a04 */
ZFS_IOC_POOL_STATS, /* 0x5a05 */
ZFS_IOC_POOL_TRYIMPORT, /* 0x5a06 */
ZFS_IOC_POOL_SCAN, /* 0x5a07 */
ZFS_IOC_POOL_FREEZE, /* 0x5a08 */
ZFS_IOC_POOL_UPGRADE, /* 0x5a09 */
ZFS_IOC_POOL_GET_HISTORY, /* 0x5a0a */
ZFS_IOC_VDEV_ADD, /* 0x5a0b */
ZFS_IOC_VDEV_REMOVE, /* 0x5a0c */
ZFS_IOC_VDEV_SET_STATE, /* 0x5a0d */
ZFS_IOC_VDEV_ATTACH, /* 0x5a0e */
ZFS_IOC_VDEV_DETACH, /* 0x5a0f */
ZFS_IOC_VDEV_SETPATH, /* 0x5a10 */
ZFS_IOC_VDEV_SETFRU, /* 0x5a11 */
ZFS_IOC_OBJSET_STATS, /* 0x5a12 */
ZFS_IOC_OBJSET_ZPLPROPS, /* 0x5a13 */
ZFS_IOC_DATASET_LIST_NEXT, /* 0x5a14 */
ZFS_IOC_SNAPSHOT_LIST_NEXT, /* 0x5a15 */
ZFS_IOC_SET_PROP, /* 0x5a16 */
ZFS_IOC_CREATE, /* 0x5a17 */
ZFS_IOC_DESTROY, /* 0x5a18 */
ZFS_IOC_ROLLBACK, /* 0x5a19 */
ZFS_IOC_RENAME, /* 0x5a1a */
ZFS_IOC_RECV, /* 0x5a1b */
ZFS_IOC_SEND, /* 0x5a1c */
ZFS_IOC_INJECT_FAULT, /* 0x5a1d */
ZFS_IOC_CLEAR_FAULT, /* 0x5a1e */
ZFS_IOC_INJECT_LIST_NEXT, /* 0x5a1f */
ZFS_IOC_ERROR_LOG, /* 0x5a20 */
ZFS_IOC_CLEAR, /* 0x5a21 */
ZFS_IOC_PROMOTE, /* 0x5a22 */
ZFS_IOC_SNAPSHOT, /* 0x5a23 */
ZFS_IOC_DSOBJ_TO_DSNAME, /* 0x5a24 */
ZFS_IOC_OBJ_TO_PATH, /* 0x5a25 */
ZFS_IOC_POOL_SET_PROPS, /* 0x5a26 */
ZFS_IOC_POOL_GET_PROPS, /* 0x5a27 */
ZFS_IOC_SET_FSACL, /* 0x5a28 */
ZFS_IOC_GET_FSACL, /* 0x5a29 */
ZFS_IOC_SHARE, /* 0x5a2a */
ZFS_IOC_INHERIT_PROP, /* 0x5a2b */
ZFS_IOC_SMB_ACL, /* 0x5a2c */
ZFS_IOC_USERSPACE_ONE, /* 0x5a2d */
ZFS_IOC_USERSPACE_MANY, /* 0x5a2e */
ZFS_IOC_USERSPACE_UPGRADE, /* 0x5a2f */
ZFS_IOC_HOLD, /* 0x5a30 */
ZFS_IOC_RELEASE, /* 0x5a31 */
ZFS_IOC_GET_HOLDS, /* 0x5a32 */
ZFS_IOC_OBJSET_RECVD_PROPS, /* 0x5a33 */
ZFS_IOC_VDEV_SPLIT, /* 0x5a34 */
ZFS_IOC_NEXT_OBJ, /* 0x5a35 */
ZFS_IOC_DIFF, /* 0x5a36 */
ZFS_IOC_TMP_SNAPSHOT, /* 0x5a37 */
ZFS_IOC_OBJ_TO_STATS, /* 0x5a38 */
ZFS_IOC_SPACE_WRITTEN, /* 0x5a39 */
ZFS_IOC_SPACE_SNAPS, /* 0x5a3a */
ZFS_IOC_DESTROY_SNAPS, /* 0x5a3b */
ZFS_IOC_POOL_REGUID, /* 0x5a3c */
ZFS_IOC_POOL_REOPEN, /* 0x5a3d */
ZFS_IOC_SEND_PROGRESS, /* 0x5a3e */
ZFS_IOC_LOG_HISTORY, /* 0x5a3f */
ZFS_IOC_SEND_NEW, /* 0x5a40 */
ZFS_IOC_SEND_SPACE, /* 0x5a41 */
ZFS_IOC_CLONE, /* 0x5a42 */
ZFS_IOC_BOOKMARK, /* 0x5a43 */
ZFS_IOC_GET_BOOKMARKS, /* 0x5a44 */
ZFS_IOC_DESTROY_BOOKMARKS, /* 0x5a45 */
ZFS_IOC_CHANNEL_PROGRAM, /* 0x5a46 */
ZFS_IOC_RECV_NEW, /* 0x5a47 */
ZFS_IOC_POOL_SYNC, /* 0x5a48 */
ZFS_IOC_LOAD_KEY, /* 0x5a49 */
ZFS_IOC_UNLOAD_KEY, /* 0x5a4a */
ZFS_IOC_CHANGE_KEY, /* 0x5a4b */
ZFS_IOC_REMAP, /* 0x5a4c */
ZFS_IOC_POOL_CHECKPOINT, /* 0x5a4d */
ZFS_IOC_POOL_DISCARD_CHECKPOINT, /* 0x5a4e */
/*
* Linux - 3/64 numbers reserved.
*/
ZFS_IOC_LINUX = ('Z' << 8) + 0x80,
ZFS_IOC_EVENTS_NEXT,
ZFS_IOC_EVENTS_CLEAR,
ZFS_IOC_EVENTS_SEEK,
ZFS_IOC_EVENTS_NEXT, /* 0x5a81 */
ZFS_IOC_EVENTS_CLEAR, /* 0x5a82 */
ZFS_IOC_EVENTS_SEEK, /* 0x5a83 */
/*
* FreeBSD - 1/64 numbers reserved.
@ -1193,13 +1195,19 @@ typedef enum zfs_ioc {
* The enum implicitly includes all the error codes from errno.h.
* New code should use and extend this enum for errors that are
* not described precisely by generic errno codes.
*
* These numbers should not change over time. New entries should be appended.
*/
typedef enum {
ZFS_ERR_CHECKPOINT_EXISTS = 1024,
ZFS_ERR_DISCARDING_CHECKPOINT,
ZFS_ERR_NO_CHECKPOINT,
ZFS_ERR_DEVRM_IN_PROGRESS,
ZFS_ERR_VDEV_TOO_BIG
ZFS_ERR_VDEV_TOO_BIG,
ZFS_ERR_IOC_CMD_UNAVAIL,
ZFS_ERR_IOC_ARG_UNAVAIL,
ZFS_ERR_IOC_ARG_REQUIRED,
ZFS_ERR_IOC_ARG_BADTYPE,
} zfs_errno_t;
/*

37
lib/libzfs/libzfs_util.c
View File

@ -22,7 +22,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2018, Joyent, Inc. All rights reserved.
* Copyright (c) 2011, 2017 by Delphix. All rights reserved.
* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
* Copyright (c) 2017 Datto Inc.
*/
@ -227,6 +227,9 @@ libzfs_error_description(libzfs_handle_t *hdl)
case EZFS_NOTSUP:
return (dgettext(TEXT_DOMAIN, "operation not supported "
"on this dataset"));
case EZFS_IOC_NOTSUPPORTED:
return (dgettext(TEXT_DOMAIN, "operation not supported by "
"zfs kernel module"));
case EZFS_ACTIVE_SPARE:
return (dgettext(TEXT_DOMAIN, "pool has active shared spare "
"device"));
@ -445,6 +448,22 @@ zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
case EREMOTEIO:
zfs_verror(hdl, EZFS_ACTIVE_POOL, fmt, ap);
break;
case ZFS_ERR_IOC_CMD_UNAVAIL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs "
"module does not support this operation. A reboot may "
"be required to enable this operation."));
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break;
case ZFS_ERR_IOC_ARG_UNAVAIL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs "
"module does not support an option for this operation. "
"A reboot may be required to enable this option."));
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break;
case ZFS_ERR_IOC_ARG_REQUIRED:
case ZFS_ERR_IOC_ARG_BADTYPE:
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break;
default:
zfs_error_aux(hdl, strerror(error));
zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
@ -556,6 +575,22 @@ zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...)
case ZFS_ERR_VDEV_TOO_BIG:
zfs_verror(hdl, EZFS_VDEV_TOO_BIG, fmt, ap);
break;
case ZFS_ERR_IOC_CMD_UNAVAIL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs "
"module does not support this operation. A reboot may "
"be required to enable this operation."));
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break;
case ZFS_ERR_IOC_ARG_UNAVAIL:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs "
"module does not support an option for this operation. "
"A reboot may be required to enable this option."));
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break;
case ZFS_ERR_IOC_ARG_REQUIRED:
case ZFS_ERR_IOC_ARG_BADTYPE:
zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap);
break;
default:
zfs_error_aux(hdl, strerror(error));
zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);

50
lib/libzfs_core/libzfs_core.c
View File

@ -20,7 +20,7 @@
*/
/*
* Copyright (c) 2012, 2017 by Delphix. All rights reserved.
* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2017 Datto Inc.
* Copyright 2017 RackTop Systems.
@ -78,6 +78,9 @@
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#ifdef ZFS_DEBUG
#include <stdio.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
@ -91,6 +94,42 @@ static int g_fd = -1;
static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
static int g_refcount;
#ifdef ZFS_DEBUG
static zfs_ioc_t fail_ioc_cmd;
static zfs_errno_t fail_ioc_err;
static void
libzfs_core_debug_ioc(void)
{
/*
* To test running newer user space binaries with kernel's
* that don't yet support an ioctl or a new ioctl arg we
* provide an override to intentionally fail an ioctl.
*
* USAGE:
* The override variable, ZFS_IOC_TEST, is of the form "cmd:err"
*
* For example, to fail a ZFS_IOC_POOL_CHECKPOINT with a
* ZFS_ERR_IOC_CMD_UNAVAIL, the string would be "0x5a4d:1029"
*
* $ sudo sh -c "ZFS_IOC_TEST=0x5a4d:1029 zpool checkpoint tank"
* cannot checkpoint 'tank': the loaded zfs module does not support
* this operation. A reboot may be required to enable this operation.
*/
if (fail_ioc_cmd == 0) {
char *ioc_test = getenv("ZFS_IOC_TEST");
unsigned int ioc_num = 0, ioc_err = 0;
if (ioc_test != NULL &&
sscanf(ioc_test, "%i:%i", &ioc_num, &ioc_err) == 2 &&
ioc_num < ZFS_IOC_LAST) {
fail_ioc_cmd = ioc_num;
fail_ioc_err = ioc_err;
}
}
}
#endif
int
libzfs_core_init(void)
{
@ -103,6 +142,10 @@ libzfs_core_init(void)
}
}
g_refcount++;
#ifdef ZFS_DEBUG
libzfs_core_debug_ioc();
#endif
(void) pthread_mutex_unlock(&g_lock);
return (0);
}
@ -135,6 +178,11 @@ lzc_ioctl(zfs_ioc_t ioc, const char *name,
ASSERT3S(g_refcount, >, 0);
VERIFY3S(g_fd, !=, -1);
#ifdef ZFS_DEBUG
if (ioc == fail_ioc_cmd)
return (fail_ioc_err);
#endif
if (name != NULL)
(void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));

461
module/zfs/zfs_ioctl.c
View File

@ -27,7 +27,7 @@
* Copyright (c) 2014, 2016 Joyent, Inc. All rights reserved.
* Copyright 2016 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014, Joyent, Inc. All rights reserved.
* Copyright (c) 2011, 2017 by Delphix. All rights reserved.
* Copyright (c) 2011, 2018 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
* Copyright (c) 2013 Steven Hartland. All rights reserved.
* Copyright (c) 2014 Integros [integros.com]
@ -63,8 +63,9 @@
*
* zfs_ioc_t ioc
* The ioctl request number, which userland will pass to ioctl(2).
* The ioctl numbers can change from release to release, because
* the caller (libzfs) must be matched to the kernel.
* We want newer versions of libzfs and libzfs_core to run against
* existing zfs kernel modules (i.e. a deferred reboot after an update).
* Therefore the ioctl numbers cannot change from release to release.
*
* zfs_secpolicy_func_t *secpolicy
* This function will be called before the zfs_ioc_func_t, to
@ -90,6 +91,10 @@
* Multiple checks can be or-ed together (e.g. POOL_CHECK_SUSPENDED |
* POOL_CHECK_READONLY).
*
* zfs_ioc_key_t *nvl_keys
* The list of expected/allowable innvl input keys. This list is used
* to validate the nvlist input to the ioctl.
*
* boolean_t smush_outnvlist
* If smush_outnvlist is true, then the output is presumed to be a
* list of errors, and it will be "smushed" down to fit into the
@ -138,6 +143,14 @@
* use the outnvl if they succeed, because the caller can not
* distinguish between the operation failing, and
* deserialization failing.
*
* IOCTL Interface Errors
*
* The following ioctl input errors can be returned:
* ZFS_ERR_IOC_CMD_UNAVAIL the ioctl number is not supported by kernel
* ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
* ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
* ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type
*/
#include <sys/types.h>
@ -220,6 +233,37 @@ typedef int zfs_ioc_legacy_func_t(zfs_cmd_t *);
typedef int zfs_ioc_func_t(const char *, nvlist_t *, nvlist_t *);
typedef int zfs_secpolicy_func_t(zfs_cmd_t *, nvlist_t *, cred_t *);
/*
* IOC Keys are used to document and validate user->kernel interface inputs.
* See zfs_keys_recv_new for an example declaration. Any key name that is not
* listed will be rejected as input.
*
* The keyname 'optional' is always allowed, and must be an nvlist if present.
* Arguments which older kernels can safely ignore can be placed under the
* "optional" key.
*
* When adding new keys to an existing ioc for new functionality, consider:
* - adding an entry into zfs_sysfs.c zfs_features[] list
* - updating the libzfs_input_check.c test utility
*
* Note: in the ZK_WILDCARDLIST case, the name serves as documentation
* for the expected name (bookmark, snapshot, property, etc) but there
* is no validation in the preflight zfs_check_input_nvpairs() check.
*/
typedef enum {
ZK_OPTIONAL = 1 << 0, /* pair is optional */
ZK_WILDCARDLIST = 1 << 1, /* one or more unspecified key names */
} ioc_key_flag_t;
/* DATA_TYPE_ANY is used when zkey_type can vary. */
#define DATA_TYPE_ANY DATA_TYPE_UNKNOWN
typedef struct zfs_ioc_key {
const char *zkey_name;
data_type_t zkey_type;
ioc_key_flag_t zkey_flags;
} zfs_ioc_key_t;
typedef enum {
NO_NAME,
POOL_NAME,
@ -241,6 +285,8 @@ typedef struct zfs_ioc_vec {
zfs_ioc_poolcheck_t zvec_pool_check;
boolean_t zvec_smush_outnvlist;
const char *zvec_name;
const zfs_ioc_key_t *zvec_nvl_keys;
size_t zvec_nvl_key_count;
} zfs_ioc_vec_t;
/* This array is indexed by zfs_userquota_prop_t */
@ -841,8 +887,8 @@ zfs_secpolicy_destroy_snaps(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
nvpair_t *pair, *nextpair;
int error = 0;
if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
return (SET_ERROR(EINVAL));
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
pair = nextpair) {
nextpair = nvlist_next_nvpair(snaps, pair);
@ -993,8 +1039,8 @@ zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
int error = 0;
nvpair_t *pair;
if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
return (SET_ERROR(EINVAL));
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
pair = nvlist_next_nvpair(snaps, pair)) {
char *name = nvpair_name(pair);
@ -1014,7 +1060,7 @@ zfs_secpolicy_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
}
/*
* Check for permission to create each snapshot in the nvlist.
* Check for permission to create each bookmark in the nvlist.
*/
/* ARGSUSED */
static int
@ -1249,9 +1295,7 @@ zfs_secpolicy_hold(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
nvlist_t *holds;
int error;
error = nvlist_lookup_nvlist(innvl, "holds", &holds);
if (error != 0)
return (SET_ERROR(EINVAL));
holds = fnvlist_lookup_nvlist(innvl, "holds");
for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
pair = nvlist_next_nvpair(holds, pair)) {
@ -1306,12 +1350,15 @@ zfs_secpolicy_tmp_snapshot(zfs_cmd_t *zc, nvlist_t *innvl, cred_t *cr)
return (0);
error = zfs_secpolicy_snapshot_perms(zc->zc_name, cr);
if (error == 0)
error = zfs_secpolicy_hold(zc, innvl, cr);
if (error == 0)
error = zfs_secpolicy_release(zc, innvl, cr);
if (error == 0)
error = zfs_secpolicy_destroy(zc, innvl, cr);
if (innvl != NULL) {
if (error == 0)
error = zfs_secpolicy_hold(zc, innvl, cr);
if (error == 0)
error = zfs_secpolicy_release(zc, innvl, cr);
if (error == 0)
error = zfs_secpolicy_destroy(zc, innvl, cr);
}
return (error);
}
@ -3221,6 +3268,13 @@ zfs_fill_zplprops_root(uint64_t spa_vers, nvlist_t *createprops,
*
* outnvl: propname -> error code (int32)
*/
static const zfs_ioc_key_t zfs_keys_create[] = {
{"type", DATA_TYPE_INT32, 0},
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
};
static int
zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -3229,14 +3283,11 @@ zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
nvlist_t *nvprops = NULL;
nvlist_t *hidden_args = NULL;
void (*cbfunc)(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
int32_t type32;
dmu_objset_type_t type;
boolean_t is_insensitive = B_FALSE;
dsl_crypto_params_t *dcp = NULL;
if (nvlist_lookup_int32(innvl, "type", &type32) != 0)
return (SET_ERROR(EINVAL));
type = type32;
type = (dmu_objset_type_t)fnvlist_lookup_int32(innvl, "type");
(void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
(void) nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
@ -3357,6 +3408,12 @@ zfs_ioc_create(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
* outputs:
* outnvl: propname -> error code (int32)
*/
static const zfs_ioc_key_t zfs_keys_clone[] = {
{"origin", DATA_TYPE_STRING, 0},
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
};
static int
zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -3364,8 +3421,7 @@ zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
nvlist_t *nvprops = NULL;
char *origin_name;
if (nvlist_lookup_string(innvl, "origin", &origin_name) != 0)
return (SET_ERROR(EINVAL));
origin_name = fnvlist_lookup_string(innvl, "origin");
(void) nvlist_lookup_nvlist(innvl, "props", &nvprops);
if (strchr(fsname, '@') ||
@ -3389,6 +3445,10 @@ zfs_ioc_clone(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
return (error);
}
static const zfs_ioc_key_t zfs_keys_remap[] = {
/* no nvl keys */
};
/* ARGSUSED */
static int
zfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
@ -3408,6 +3468,11 @@ zfs_ioc_remap(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
*
* outnvl: snapshot -> error code (int32)
*/
static const zfs_ioc_key_t zfs_keys_snapshot[] = {
{"snaps", DATA_TYPE_NVLIST, 0},
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
};
static int
zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -3424,8 +3489,7 @@ zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
zfs_earlier_version(poolname, SPA_VERSION_SNAP_PROPS))
return (SET_ERROR(ENOTSUP));
if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
return (SET_ERROR(EINVAL));
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
poollen = strlen(poolname);
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
pair = nvlist_next_nvpair(snaps, pair)) {
@ -3465,6 +3529,10 @@ zfs_ioc_snapshot(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
/*
* innvl: "message" -> string
*/
static const zfs_ioc_key_t zfs_keys_log_history[] = {
{"message", DATA_TYPE_STRING, 0},
};
/* ARGSUSED */
static int
zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
@ -3490,10 +3558,7 @@ zfs_ioc_log_history(const char *unused, nvlist_t *innvl, nvlist_t *outnvl)
if (error != 0)
return (error);
if (nvlist_lookup_string(innvl, "message", &message) != 0) {
spa_close(spa, FTAG);
return (SET_ERROR(EINVAL));
}
message = fnvlist_lookup_string(innvl, "message");
if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY) {
spa_close(spa, FTAG);
@ -3566,6 +3631,11 @@ zfs_destroy_unmount_origin(const char *fsname)
*
* outnvl: snapshot -> error code (int32)
*/
static const zfs_ioc_key_t zfs_keys_destroy_snaps[] = {
{"snaps", DATA_TYPE_NVLIST, 0},
{"defer", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
};
/* ARGSUSED */
static int
zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
@ -3574,8 +3644,7 @@ zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
nvpair_t *pair;
boolean_t defer;
if (nvlist_lookup_nvlist(innvl, "snaps", &snaps) != 0)
return (SET_ERROR(EINVAL));
snaps = fnvlist_lookup_nvlist(innvl, "snaps");
defer = nvlist_exists(innvl, "defer");
for (pair = nvlist_next_nvpair(snaps, NULL); pair != NULL;
@ -3597,6 +3666,10 @@ zfs_ioc_destroy_snaps(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
* outnvl: bookmark -> error code (int32)
*
*/
static const zfs_ioc_key_t zfs_keys_bookmark[] = {
{"<bookmark>...", DATA_TYPE_STRING, ZK_WILDCARDLIST},
};
/* ARGSUSED */
static int
zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
@ -3634,6 +3707,10 @@ zfs_ioc_bookmark(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
* }
*
*/
static const zfs_ioc_key_t zfs_keys_get_bookmarks[] = {
{"<property>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST | ZK_OPTIONAL},
};
static int
zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -3648,6 +3725,10 @@ zfs_ioc_get_bookmarks(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
* outnvl: bookmark -> error code (int32)
*
*/
static const zfs_ioc_key_t zfs_keys_destroy_bookmarks[] = {
{"<bookmark>...", DATA_TYPE_BOOLEAN, ZK_WILDCARDLIST},
};
static int
zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl,
nvlist_t *outnvl)
@ -3680,6 +3761,14 @@ zfs_ioc_destroy_bookmarks(const char *poolname, nvlist_t *innvl,
return (error);
}
static const zfs_ioc_key_t zfs_keys_channel_program[] = {
{"program", DATA_TYPE_STRING, 0},
{"arg", DATA_TYPE_ANY, 0},
{"sync", DATA_TYPE_BOOLEAN_VALUE, ZK_OPTIONAL},
{"instrlimit", DATA_TYPE_UINT64, ZK_OPTIONAL},
{"memlimit", DATA_TYPE_UINT64, ZK_OPTIONAL},
};
static int
zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl,
nvlist_t *outnvl)
@ -3689,9 +3778,7 @@ zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl,
boolean_t sync_flag;
nvpair_t *nvarg = NULL;
if (0 != nvlist_lookup_string(innvl, ZCP_ARG_PROGRAM, &program)) {
return (EINVAL);
}
program = fnvlist_lookup_string(innvl, ZCP_ARG_PROGRAM);
if (0 != nvlist_lookup_boolean_value(innvl, ZCP_ARG_SYNC, &sync_flag)) {
sync_flag = B_TRUE;
}
@ -3701,9 +3788,7 @@ zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl,
if (0 != nvlist_lookup_uint64(innvl, ZCP_ARG_MEMLIMIT, &memlimit)) {
memlimit = ZCP_DEFAULT_MEMLIMIT;
}
if (0 != nvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST, &nvarg)) {
return (EINVAL);
}
nvarg = fnvlist_lookup_nvpair(innvl, ZCP_ARG_ARGLIST);
if (instrlimit == 0 || instrlimit > zfs_lua_max_instrlimit)
return (EINVAL);
@ -3718,6 +3803,10 @@ zfs_ioc_channel_program(const char *poolname, nvlist_t *innvl,
* innvl: unused
* outnvl: empty
*/
static const zfs_ioc_key_t zfs_keys_pool_checkpoint[] = {
/* no nvl keys */
};
/* ARGSUSED */
static int
zfs_ioc_pool_checkpoint(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
@ -3729,6 +3818,10 @@ zfs_ioc_pool_checkpoint(const char *poolname, nvlist_t *innvl, nvlist_t *outnvl)
* innvl: unused
* outnvl: empty
*/
static const zfs_ioc_key_t zfs_keys_pool_discard_checkpoint[] = {
/* no nvl keys */
};
/* ARGSUSED */
static int
zfs_ioc_pool_discard_checkpoint(const char *poolname, nvlist_t *innvl,
@ -3798,6 +3891,10 @@ zfs_ioc_destroy(zfs_cmd_t *zc)
* outnvl: "target" -> name of most recent snapshot
* }
*/
static const zfs_ioc_key_t zfs_keys_rollback[] = {
{"target", DATA_TYPE_STRING, ZK_OPTIONAL},
};
/* ARGSUSED */
static int
zfs_ioc_rollback(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
@ -4738,6 +4835,7 @@ zfs_ioc_recv(zfs_cmd_t *zc)
* (optional) "resumable" -> resumable flag (value ignored)
* (optional) "cleanup_fd" -> cleanup-on-exit file descriptor
* (optional) "action_handle" -> handle for this guid/ds mapping
* (optional) "hidden_args" -> { "wkeydata" -> value }
* }
*
* outnvl: {
@ -4747,6 +4845,20 @@ zfs_ioc_recv(zfs_cmd_t *zc)
* "errors" -> error for each unapplied received property (nvlist)
* }
*/
static const zfs_ioc_key_t zfs_keys_recv_new[] = {
{"snapname", DATA_TYPE_STRING, 0},
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
{"localprops", DATA_TYPE_NVLIST, ZK_OPTIONAL},
{"origin", DATA_TYPE_STRING, ZK_OPTIONAL},
{"begin_record", DATA_TYPE_BYTE_ARRAY, 0},
{"input_fd", DATA_TYPE_INT32, 0},
{"force", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"resumable", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL},
{"action_handle", DATA_TYPE_UINT64, ZK_OPTIONAL},
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
};
static int
zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -4756,7 +4868,7 @@ zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
nvlist_t *recvprops = NULL;
nvlist_t *localprops = NULL;
nvlist_t *hidden_args = NULL;
char *snapname = NULL;
char *snapname;
char *origin = NULL;
char *tosnap;
char tofs[ZFS_MAX_DATASET_NAME_LEN];
@ -4769,9 +4881,7 @@ zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
int cleanup_fd = -1;
int error;
error = nvlist_lookup_string(innvl, "snapname", &snapname);
if (error != 0)
return (SET_ERROR(EINVAL));
snapname = fnvlist_lookup_string(innvl, "snapname");
if (dataset_namecheck(snapname, NULL, NULL) != 0 ||
strchr(snapname, '@') == NULL ||
@ -4791,9 +4901,7 @@ zfs_ioc_recv_new(const char *fsname, nvlist_t *innvl, nvlist_t *outnvl)
if (error != 0 || begin_record_size != sizeof (*begin_record))
return (SET_ERROR(EINVAL));
error = nvlist_lookup_int32(innvl, "input_fd", &input_fd);
if (error != 0)
return (SET_ERROR(EINVAL));
input_fd = fnvlist_lookup_int32(innvl, "input_fd");
force = nvlist_exists(innvl, "force");
resumable = nvlist_exists(innvl, "resumable");
@ -5132,6 +5240,10 @@ zfs_ioc_clear(zfs_cmd_t *zc)
*
* outnvl is unused
*/
static const zfs_ioc_key_t zfs_keys_pool_reopen[] = {
{"scrub_restart", DATA_TYPE_BOOLEAN_VALUE, 0},
};
/* ARGSUSED */
static int
zfs_ioc_pool_reopen(const char *pool, nvlist_t *innvl, nvlist_t *outnvl)
@ -5141,10 +5253,8 @@ zfs_ioc_pool_reopen(const char *pool, nvlist_t *innvl, nvlist_t *outnvl)
boolean_t scrub_restart = B_TRUE;
if (innvl) {
if (nvlist_lookup_boolean_value(innvl, "scrub_restart",
&scrub_restart) != 0) {
return (SET_ERROR(EINVAL));
}
scrub_restart = fnvlist_lookup_boolean_value(innvl,
"scrub_restart");
}
error = spa_open(pool, &spa, FTAG);
@ -5661,6 +5771,11 @@ zfs_ioc_smb_acl(zfs_cmd_t *zc)
* ...
* }
*/
static const zfs_ioc_key_t zfs_keys_hold[] = {
{"holds", DATA_TYPE_NVLIST, 0},
{"cleanup_fd", DATA_TYPE_INT32, ZK_OPTIONAL},
};
/* ARGSUSED */
static int
zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
@ -5671,9 +5786,7 @@ zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
int error;
minor_t minor = 0;
error = nvlist_lookup_nvlist(args, "holds", &holds);
if (error != 0)
return (SET_ERROR(EINVAL));
holds = fnvlist_lookup_nvlist(args, "holds");
/* make sure the user didn't pass us any invalid (empty) tags */
for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
@ -5708,11 +5821,14 @@ zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
* ...
* }
*/
static const zfs_ioc_key_t zfs_keys_get_holds[] = {
/* no nvl keys */
};
/* ARGSUSED */
static int
zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl)
{
ASSERT3P(args, ==, NULL);
return (dsl_dataset_get_holds(snapname, outnvl));
}
@ -5727,6 +5843,10 @@ zfs_ioc_get_holds(const char *snapname, nvlist_t *args, nvlist_t *outnvl)
* ...
* }
*/
static const zfs_ioc_key_t zfs_keys_release[] = {
{"<snapname>...", DATA_TYPE_NVLIST, ZK_WILDCARDLIST},
};
/* ARGSUSED */
static int
zfs_ioc_release(const char *pool, nvlist_t *holds, nvlist_t *errlist)
@ -5869,6 +5989,10 @@ zfs_ioc_space_written(zfs_cmd_t *zc)
* "uncompressed" -> uncompressed space in bytes
* }
*/
static const zfs_ioc_key_t zfs_keys_space_snaps[] = {
{"firstsnap", DATA_TYPE_STRING, 0},
};
static int
zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -5878,8 +6002,7 @@ zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
char *firstsnap;
uint64_t used, comp, uncomp;
if (nvlist_lookup_string(innvl, "firstsnap", &firstsnap) != 0)
return (SET_ERROR(EINVAL));
firstsnap = fnvlist_lookup_string(innvl, "firstsnap");
error = dsl_pool_hold(lastsnap, FTAG, &dp);
if (error != 0)
@ -5933,6 +6056,17 @@ zfs_ioc_space_snaps(const char *lastsnap, nvlist_t *innvl, nvlist_t *outnvl)
*
* outnvl is unused
*/
static const zfs_ioc_key_t zfs_keys_send_new[] = {
{"fd", DATA_TYPE_INT32, 0},
{"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL},
{"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"resume_object", DATA_TYPE_UINT64, ZK_OPTIONAL},
{"resume_offset", DATA_TYPE_UINT64, ZK_OPTIONAL},
};
/* ARGSUSED */
static int
zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
@ -5949,9 +6083,7 @@ zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
uint64_t resumeobj = 0;
uint64_t resumeoff = 0;
error = nvlist_lookup_int32(innvl, "fd", &fd);
if (error != 0)
return (SET_ERROR(EINVAL));
fd = fnvlist_lookup_int32(innvl, "fd");
(void) nvlist_lookup_string(innvl, "fromsnap", &fromname);
@ -5998,6 +6130,15 @@ zfs_ioc_send_new(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
* "space" -> bytes of space (uint64)
* }
*/
static const zfs_ioc_key_t zfs_keys_send_space[] = {
{"from", DATA_TYPE_STRING, ZK_OPTIONAL},
{"fromsnap", DATA_TYPE_STRING, ZK_OPTIONAL},
{"largeblockok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"embedok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"compressok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
{"rawok", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
};
static int
zfs_ioc_send_space(const char *snapname, nvlist_t *innvl, nvlist_t *outnvl)
{
@ -6090,6 +6231,10 @@ out:
*
* onvl is unused
*/
static const zfs_ioc_key_t zfs_keys_pool_sync[] = {
{"force", DATA_TYPE_BOOLEAN_VALUE, 0},
};
/* ARGSUSED */
static int
zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
@ -6101,12 +6246,8 @@ zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
if ((err = spa_open(pool, &spa, FTAG)) != 0)
return (err);
if (innvl) {
if (nvlist_lookup_boolean_value(innvl, "force", &force) != 0) {
err = SET_ERROR(EINVAL);
goto out;
}
}
if (innvl)
force = fnvlist_lookup_boolean_value(innvl, "force");
if (force) {
spa_config_enter(spa, SCL_CONFIG, FTAG, RW_WRITER);
@ -6114,7 +6255,7 @@ zfs_ioc_pool_sync(const char *pool, nvlist_t *innvl, nvlist_t *onvl)
spa_config_exit(spa, SCL_CONFIG, FTAG);
}
txg_wait_synced(spa_get_dsl(spa), 0);
out:
spa_close(spa, FTAG);
return (err);
@ -6129,6 +6270,11 @@ out:
* presence indicated key should only be verified, not loaded
* }
*/
static const zfs_ioc_key_t zfs_keys_load_key[] = {
{"hidden_args", DATA_TYPE_NVLIST, 0},
{"noop", DATA_TYPE_BOOLEAN, ZK_OPTIONAL},
};
/* ARGSUSED */
static int
zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
@ -6143,11 +6289,7 @@ zfs_ioc_load_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
goto error;
}
ret = nvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS, &hidden_args);
if (ret != 0) {
ret = SET_ERROR(EINVAL);
goto error;
}
hidden_args = fnvlist_lookup_nvlist(innvl, ZPOOL_HIDDEN_ARGS);
ret = dsl_crypto_params_create_nvlist(DCP_CMD_NONE, NULL,
hidden_args, &dcp);
@ -6171,6 +6313,10 @@ error:
* Unload a user's wrapping key from the kernel.
* Both innvl and outnvl are unused.
*/
static const zfs_ioc_key_t zfs_keys_unload_key[] = {
/* no nvl keys */
};
/* ARGSUSED */
static int
zfs_ioc_unload_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
@ -6203,6 +6349,12 @@ out:
*
* outnvl is unused
*/
static const zfs_ioc_key_t zfs_keys_change_key[] = {
{"crypt_cmd", DATA_TYPE_UINT64, ZK_OPTIONAL},
{"hidden_args", DATA_TYPE_NVLIST, ZK_OPTIONAL},
{"props", DATA_TYPE_NVLIST, ZK_OPTIONAL},
};
/* ARGSUSED */
static int
zfs_ioc_change_key(const char *dsname, nvlist_t *innvl, nvlist_t *outnvl)
@ -6267,7 +6419,7 @@ static void
zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func,
zfs_secpolicy_func_t *secpolicy, zfs_ioc_namecheck_t namecheck,
zfs_ioc_poolcheck_t pool_check, boolean_t smush_outnvlist,
boolean_t allow_log)
boolean_t allow_log, const zfs_ioc_key_t *nvl_keys, size_t num_keys)
{
zfs_ioc_vec_t *vec = &zfs_ioc_vec[ioc - ZFS_IOC_FIRST];
@ -6286,6 +6438,8 @@ zfs_ioctl_register(const char *name, zfs_ioc_t ioc, zfs_ioc_func_t *func,
vec->zvec_pool_check = pool_check;
vec->zvec_smush_outnvlist = smush_outnvlist;
vec->zvec_allow_log = allow_log;
vec->zvec_nvl_keys = nvl_keys;
vec->zvec_nvl_key_count = num_keys;
}
static void
@ -6348,102 +6502,128 @@ zfs_ioctl_init(void)
{
zfs_ioctl_register("snapshot", ZFS_IOC_SNAPSHOT,
zfs_ioc_snapshot, zfs_secpolicy_snapshot, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_snapshot, ARRAY_SIZE(zfs_keys_snapshot));
zfs_ioctl_register("log_history", ZFS_IOC_LOG_HISTORY,
zfs_ioc_log_history, zfs_secpolicy_log_history, NO_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE,
zfs_keys_log_history, ARRAY_SIZE(zfs_keys_log_history));
zfs_ioctl_register("space_snaps", ZFS_IOC_SPACE_SNAPS,
zfs_ioc_space_snaps, zfs_secpolicy_read, DATASET_NAME,
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
zfs_keys_space_snaps, ARRAY_SIZE(zfs_keys_space_snaps));
zfs_ioctl_register("send", ZFS_IOC_SEND_NEW,
zfs_ioc_send_new, zfs_secpolicy_send_new, DATASET_NAME,
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
zfs_keys_send_new, ARRAY_SIZE(zfs_keys_send_new));
zfs_ioctl_register("send_space", ZFS_IOC_SEND_SPACE,
zfs_ioc_send_space, zfs_secpolicy_read, DATASET_NAME,
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
zfs_keys_send_space, ARRAY_SIZE(zfs_keys_send_space));
zfs_ioctl_register("create", ZFS_IOC_CREATE,
zfs_ioc_create, zfs_secpolicy_create_clone, DATASET_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_create, ARRAY_SIZE(zfs_keys_create));
zfs_ioctl_register("clone", ZFS_IOC_CLONE,
zfs_ioc_clone, zfs_secpolicy_create_clone, DATASET_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_clone, ARRAY_SIZE(zfs_keys_clone));
zfs_ioctl_register("remap", ZFS_IOC_REMAP,
zfs_ioc_remap, zfs_secpolicy_remap, DATASET_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE,
zfs_keys_remap, ARRAY_SIZE(zfs_keys_remap));
zfs_ioctl_register("destroy_snaps", ZFS_IOC_DESTROY_SNAPS,
zfs_ioc_destroy_snaps, zfs_secpolicy_destroy_snaps, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_destroy_snaps, ARRAY_SIZE(zfs_keys_destroy_snaps));
zfs_ioctl_register("hold", ZFS_IOC_HOLD,
zfs_ioc_hold, zfs_secpolicy_hold, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_hold, ARRAY_SIZE(zfs_keys_hold));
zfs_ioctl_register("release", ZFS_IOC_RELEASE,
zfs_ioc_release, zfs_secpolicy_release, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_release, ARRAY_SIZE(zfs_keys_release));
zfs_ioctl_register("get_holds", ZFS_IOC_GET_HOLDS,
zfs_ioc_get_holds, zfs_secpolicy_read, DATASET_NAME,
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
zfs_keys_get_holds, ARRAY_SIZE(zfs_keys_get_holds));
zfs_ioctl_register("rollback", ZFS_IOC_ROLLBACK,
zfs_ioc_rollback, zfs_secpolicy_rollback, DATASET_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_TRUE,
zfs_keys_rollback, ARRAY_SIZE(zfs_keys_rollback));
zfs_ioctl_register("bookmark", ZFS_IOC_BOOKMARK,
zfs_ioc_bookmark, zfs_secpolicy_bookmark, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_bookmark, ARRAY_SIZE(zfs_keys_bookmark));
zfs_ioctl_register("get_bookmarks", ZFS_IOC_GET_BOOKMARKS,
zfs_ioc_get_bookmarks, zfs_secpolicy_read, DATASET_NAME,
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED, B_FALSE, B_FALSE,
zfs_keys_get_bookmarks, ARRAY_SIZE(zfs_keys_get_bookmarks));
zfs_ioctl_register("destroy_bookmarks", ZFS_IOC_DESTROY_BOOKMARKS,
zfs_ioc_destroy_bookmarks, zfs_secpolicy_destroy_bookmarks,
POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_destroy_bookmarks,
ARRAY_SIZE(zfs_keys_destroy_bookmarks));
zfs_ioctl_register("receive", ZFS_IOC_RECV_NEW,
zfs_ioc_recv_new, zfs_secpolicy_recv_new, DATASET_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_recv_new, ARRAY_SIZE(zfs_keys_recv_new));
zfs_ioctl_register("load-key", ZFS_IOC_LOAD_KEY,
zfs_ioc_load_key, zfs_secpolicy_load_key,
DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE);
DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
zfs_keys_load_key, ARRAY_SIZE(zfs_keys_load_key));
zfs_ioctl_register("unload-key", ZFS_IOC_UNLOAD_KEY,
zfs_ioc_unload_key, zfs_secpolicy_load_key,
DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE);
DATASET_NAME, POOL_CHECK_SUSPENDED, B_TRUE, B_TRUE,
zfs_keys_unload_key, ARRAY_SIZE(zfs_keys_unload_key));
zfs_ioctl_register("change-key", ZFS_IOC_CHANGE_KEY,
zfs_ioc_change_key, zfs_secpolicy_change_key,
DATASET_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY,
B_TRUE, B_TRUE);
B_TRUE, B_TRUE, zfs_keys_change_key,
ARRAY_SIZE(zfs_keys_change_key));
zfs_ioctl_register("sync", ZFS_IOC_POOL_SYNC,
zfs_ioc_pool_sync, zfs_secpolicy_none, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_FALSE, B_FALSE,
zfs_keys_pool_sync, ARRAY_SIZE(zfs_keys_pool_sync));
zfs_ioctl_register("reopen", ZFS_IOC_POOL_REOPEN, zfs_ioc_pool_reopen,
zfs_secpolicy_config, POOL_NAME, POOL_CHECK_SUSPENDED, B_TRUE,
B_TRUE);
B_TRUE, zfs_keys_pool_reopen, ARRAY_SIZE(zfs_keys_pool_reopen));
zfs_ioctl_register("channel_program", ZFS_IOC_CHANNEL_PROGRAM,
zfs_ioc_channel_program, zfs_secpolicy_config,
POOL_NAME, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE,
B_TRUE);
B_TRUE, zfs_keys_channel_program,
ARRAY_SIZE(zfs_keys_channel_program));
zfs_ioctl_register("zpool_checkpoint", ZFS_IOC_POOL_CHECKPOINT,
zfs_ioc_pool_checkpoint, zfs_secpolicy_config, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_pool_checkpoint, ARRAY_SIZE(zfs_keys_pool_checkpoint));
zfs_ioctl_register("zpool_discard_checkpoint",
ZFS_IOC_POOL_DISCARD_CHECKPOINT, zfs_ioc_pool_discard_checkpoint,
zfs_secpolicy_config, POOL_NAME,
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE);
POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY, B_TRUE, B_TRUE,
zfs_keys_pool_discard_checkpoint,
ARRAY_SIZE(zfs_keys_pool_discard_checkpoint));
/* IOCTLS that use the legacy function signature */
@ -6587,6 +6767,80 @@ zfs_ioctl_init(void)
zfs_secpolicy_config, NO_NAME, B_FALSE, POOL_CHECK_NONE);
}
/*
* Verify that for non-legacy ioctls the input nvlist
* pairs match against the expected input.
*
* Possible errors are:
* ZFS_ERR_IOC_ARG_UNAVAIL An unrecognized nvpair was encountered
* ZFS_ERR_IOC_ARG_REQUIRED A required nvpair is missing
* ZFS_ERR_IOC_ARG_BADTYPE Invalid type for nvpair
*/
static int
zfs_check_input_nvpairs(nvlist_t *innvl, const zfs_ioc_vec_t *vec)
{
const zfs_ioc_key_t *nvl_keys = vec->zvec_nvl_keys;
boolean_t required_keys_found = B_FALSE;
/*
* examine each input pair
*/
for (nvpair_t *pair = nvlist_next_nvpair(innvl, NULL);
pair != NULL; pair = nvlist_next_nvpair(innvl, pair)) {
char *name = nvpair_name(pair);
data_type_t type = nvpair_type(pair);
boolean_t identified = B_FALSE;
/*
* check pair against the documented names and type
*/
for (int k = 0; k < vec->zvec_nvl_key_count; k++) {
/* if not a wild card name, check for an exact match */
if ((nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) == 0 &&
strcmp(nvl_keys[k].zkey_name, name) != 0)
continue;
identified = B_TRUE;
if (nvl_keys[k].zkey_type != DATA_TYPE_ANY &&
nvl_keys[k].zkey_type != type) {
return (SET_ERROR(ZFS_ERR_IOC_ARG_BADTYPE));
}
if (nvl_keys[k].zkey_flags & ZK_OPTIONAL)
continue;
required_keys_found = B_TRUE;
break;
}
/* allow an 'optional' key, everything else is invalid */
if (!identified &&
(strcmp(name, "optional") != 0 ||
type != DATA_TYPE_NVLIST)) {
return (SET_ERROR(ZFS_ERR_IOC_ARG_UNAVAIL));
}
}
/* verify that all required keys were found */
for (int k = 0; k < vec->zvec_nvl_key_count; k++) {
if (nvl_keys[k].zkey_flags & ZK_OPTIONAL)
continue;
if (nvl_keys[k].zkey_flags & ZK_WILDCARDLIST) {
/* at least one non-optionial key is expected here */
if (!required_keys_found)
return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED));
continue;
}
if (!nvlist_exists(innvl, nvl_keys[k].zkey_name))
return (SET_ERROR(ZFS_ERR_IOC_ARG_REQUIRED));
}
return (0);
}
int
pool_status_check(const char *name, zfs_ioc_namecheck_t type,
zfs_ioc_poolcheck_t check)
@ -6801,7 +7055,7 @@ zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
vecnum = cmd - ZFS_IOC_FIRST;
if (vecnum >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
return (-SET_ERROR(EINVAL));
return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL));
vec = &zfs_ioc_vec[vecnum];
/*
@ -6809,7 +7063,7 @@ zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
* a normal or legacy handler are registered.
*/
if (vec->zvec_func == NULL && vec->zvec_legacy_func == NULL)
return (-SET_ERROR(EINVAL));
return (-SET_ERROR(ZFS_ERR_IOC_CMD_UNAVAIL));
zc = kmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
@ -6869,6 +7123,19 @@ zfsdev_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
break;
}
/*
* Ensure that all input pairs are valid before we pass them down
* to the lower layers.
*
* The vectored functions can use fnvlist_lookup_{type} for any
* required pairs since zfs_check_input_nvpairs() confirmed that
* they exist and are of the correct type.
*/
if (error == 0 && vec->zvec_func != NULL) {
error = zfs_check_input_nvpairs(innvl, vec);
if (error != 0)
goto out;
}
if (error == 0) {
cookie = spl_fstrans_mark();

2
tests/runfiles/linux.run
View File

@ -858,5 +858,5 @@ tests = ['zvol_swap_001_pos', 'zvol_swap_002_pos', 'zvol_swap_003_pos',
tags = ['functional', 'zvol', 'zvol_swap']
[tests/functional/libzfs]
tests = ['many_fds']
tests = ['many_fds', 'libzfs_input']
tags = ['functional', 'libzfs']

1
tests/zfs-tests/cmd/Makefile.am
View File

@ -9,6 +9,7 @@ SUBDIRS = \
file_trunc \
file_write \
largest_file \
libzfs_input_check \
mkbusy \
mkfile \
mkfiles \

1
tests/zfs-tests/cmd/libzfs_input_check/.gitignore vendored Normal file
View File

@ -0,0 +1 @@
/libzfs_input_check

14
tests/zfs-tests/cmd/libzfs_input_check/Makefile.am Normal file
View File

@ -0,0 +1,14 @@
include $(top_srcdir)/config/Rules.am
pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/bin
DEFAULT_INCLUDES += \
-I$(top_srcdir)/include \
-I$(top_srcdir)/lib/libspl/include
pkgexec_PROGRAMS = libzfs_input_check
libzfs_input_check_SOURCES = libzfs_input_check.c
libzfs_input_check_LDADD = \
$(top_builddir)/lib/libnvpair/libnvpair.la \
$(top_builddir)/lib/libzfs_core/libzfs_core.la

906
tests/zfs-tests/cmd/libzfs_input_check/libzfs_input_check.c Normal file
View File

@ -0,0 +1,906 @@
/*
* 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) 2018 by Delphix. All rights reserved.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <libzfs_core.h>
#include <sys/nvpair.h>
#include <sys/zfs_ioctl.h>
/*
* Test the nvpair inputs for the non-legacy zfs ioctl commands.
*/
boolean_t unexpected_failures;
int zfs_fd;
const char *active_test;
/*
* Tracks which zfs_ioc_t commands were tested
*/
boolean_t ioc_tested[256];
/*
* Legacy ioctls that are skipped (for now)
*/
static unsigned ioc_skip[] = {
ZFS_IOC_POOL_CREATE,
ZFS_IOC_POOL_DESTROY,
ZFS_IOC_POOL_IMPORT,
ZFS_IOC_POOL_EXPORT,
ZFS_IOC_POOL_CONFIGS,
ZFS_IOC_POOL_STATS,
ZFS_IOC_POOL_TRYIMPORT,
ZFS_IOC_POOL_SCAN,
ZFS_IOC_POOL_FREEZE,
ZFS_IOC_POOL_UPGRADE,
ZFS_IOC_POOL_GET_HISTORY,
ZFS_IOC_VDEV_ADD,
ZFS_IOC_VDEV_REMOVE,
ZFS_IOC_VDEV_SET_STATE,
ZFS_IOC_VDEV_ATTACH,
ZFS_IOC_VDEV_DETACH,
ZFS_IOC_VDEV_SETPATH,
ZFS_IOC_VDEV_SETFRU,
ZFS_IOC_OBJSET_STATS,
ZFS_IOC_OBJSET_ZPLPROPS,
ZFS_IOC_DATASET_LIST_NEXT,
ZFS_IOC_SNAPSHOT_LIST_NEXT,
ZFS_IOC_SET_PROP,
ZFS_IOC_DESTROY,
ZFS_IOC_RENAME,
ZFS_IOC_RECV,
ZFS_IOC_SEND,
ZFS_IOC_INJECT_FAULT,
ZFS_IOC_CLEAR_FAULT,
ZFS_IOC_INJECT_LIST_NEXT,
ZFS_IOC_ERROR_LOG,
ZFS_IOC_CLEAR,
ZFS_IOC_PROMOTE,
ZFS_IOC_DSOBJ_TO_DSNAME,
ZFS_IOC_OBJ_TO_PATH,
ZFS_IOC_POOL_SET_PROPS,
ZFS_IOC_POOL_GET_PROPS,
ZFS_IOC_SET_FSACL,
ZFS_IOC_GET_FSACL,
ZFS_IOC_SHARE,
ZFS_IOC_INHERIT_PROP,
ZFS_IOC_SMB_ACL,
ZFS_IOC_USERSPACE_ONE,
ZFS_IOC_USERSPACE_MANY,
ZFS_IOC_USERSPACE_UPGRADE,
ZFS_IOC_OBJSET_RECVD_PROPS,
ZFS_IOC_VDEV_SPLIT,
ZFS_IOC_NEXT_OBJ,
ZFS_IOC_DIFF,
ZFS_IOC_TMP_SNAPSHOT,
ZFS_IOC_OBJ_TO_STATS,
ZFS_IOC_SPACE_WRITTEN,
ZFS_IOC_POOL_REGUID,
ZFS_IOC_SEND_PROGRESS,
ZFS_IOC_EVENTS_NEXT,
ZFS_IOC_EVENTS_CLEAR,
ZFS_IOC_EVENTS_SEEK,
};
#define IOC_INPUT_TEST(ioc, name, req, opt, err) \
IOC_INPUT_TEST_IMPL(ioc, name, req, opt, err, B_FALSE)
#define IOC_INPUT_TEST_WILD(ioc, name, req, opt, err) \
IOC_INPUT_TEST_IMPL(ioc, name, req, opt, err, B_TRUE)
#define IOC_INPUT_TEST_IMPL(ioc, name, req, opt, err, wild) \
do { \
active_test = __func__ + 5; \
ioc_tested[ioc - ZFS_IOC_FIRST] = B_TRUE; \
lzc_ioctl_test(ioc, name, req, opt, err, wild); \
} while (0)
/*
* run a zfs ioctl command, verify expected results and log failures
*/
static void
lzc_ioctl_run(zfs_ioc_t ioc, const char *name, nvlist_t *innvl, int expected)
{
zfs_cmd_t zc = {"\0"};
char *packed = NULL;
const char *variant;
size_t size = 0;
int error = 0;
switch (expected) {
case ZFS_ERR_IOC_ARG_UNAVAIL:
variant = "unsupported input";
break;
case ZFS_ERR_IOC_ARG_REQUIRED:
variant = "missing input";
break;
case ZFS_ERR_IOC_ARG_BADTYPE:
variant = "invalid input type";
break;
default:
variant = "valid input";
break;
}
packed = fnvlist_pack(innvl, &size);
(void) strncpy(zc.zc_name, name, sizeof (zc.zc_name));
zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed;
zc.zc_nvlist_src_size = size;
zc.zc_nvlist_dst_size = MAX(size * 2, 128 * 1024);
zc.zc_nvlist_dst = (uint64_t)(uintptr_t)malloc(zc.zc_nvlist_dst_size);
if (ioctl(zfs_fd, ioc, &zc) != 0)
error = errno;
if (error != expected) {
unexpected_failures = B_TRUE;
(void) fprintf(stderr, "%s: Unexpected result with %s, "
"error %d (expecting %d)\n",
active_test, variant, error, expected);
}
fnvlist_pack_free(packed, size);
free((void *)(uintptr_t)zc.zc_nvlist_dst);
}
/*
* Test each ioc for the folowing ioctl input errors:
* ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
* ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
* ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type
*/
static int
lzc_ioctl_test(zfs_ioc_t ioc, const char *name, nvlist_t *required,
nvlist_t *optional, int expected_error, boolean_t wildcard)
{
nvlist_t *input = fnvlist_alloc();
nvlist_t *future = fnvlist_alloc();
int error = 0;
if (required != NULL) {
for (nvpair_t *pair = nvlist_next_nvpair(required, NULL);
pair != NULL; pair = nvlist_next_nvpair(required, pair)) {
fnvlist_add_nvpair(input, pair);
}
}
if (optional != NULL) {
for (nvpair_t *pair = nvlist_next_nvpair(optional, NULL);
pair != NULL; pair = nvlist_next_nvpair(optional, pair)) {
fnvlist_add_nvpair(input, pair);
}
}
/*
* Generic input run with 'optional' nvlist pair
*/
if (!wildcard)
fnvlist_add_nvlist(input, "optional", future);
lzc_ioctl_run(ioc, name, input, expected_error);
if (!wildcard)
fnvlist_remove(input, "optional");
/*
* Bogus input value
*/
if (!wildcard) {
fnvlist_add_string(input, "bogus_input", "bogus");
lzc_ioctl_run(ioc, name, input, ZFS_ERR_IOC_ARG_UNAVAIL);
fnvlist_remove(input, "bogus_input");
}
/*
* Missing required inputs
*/
if (required != NULL) {
nvlist_t *empty = fnvlist_alloc();
lzc_ioctl_run(ioc, name, empty, ZFS_ERR_IOC_ARG_REQUIRED);
nvlist_free(empty);
}
/*
* Wrong nvpair type
*/
if (required != NULL || optional != NULL) {
/*
* switch the type of one of the input pairs
*/
for (nvpair_t *pair = nvlist_next_nvpair(input, NULL);
pair != NULL; pair = nvlist_next_nvpair(input, pair)) {
char pname[MAXNAMELEN];
data_type_t ptype;
strncpy(pname, nvpair_name(pair), sizeof (pname));
pname[sizeof (pname) - 1] = '\0';
ptype = nvpair_type(pair);
fnvlist_remove_nvpair(input, pair);
switch (ptype) {
case DATA_TYPE_STRING:
fnvlist_add_uint64(input, pname, 42);
break;
default:
fnvlist_add_string(input, pname, "bogus");
break;
}
}
lzc_ioctl_run(ioc, name, input, ZFS_ERR_IOC_ARG_BADTYPE);
}
nvlist_free(future);
nvlist_free(input);
return (error);
}
static void
test_pool_sync(const char *pool)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_boolean_value(required, "force", B_TRUE);
IOC_INPUT_TEST(ZFS_IOC_POOL_SYNC, pool, required, NULL, 0);
nvlist_free(required);
}
static void
test_pool_reopen(const char *pool)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_boolean_value(required, "scrub_restart", B_FALSE);
IOC_INPUT_TEST(ZFS_IOC_POOL_REOPEN, pool, required, NULL, 0);
nvlist_free(required);
}
static void
test_pool_checkpoint(const char *pool)
{
IOC_INPUT_TEST(ZFS_IOC_POOL_CHECKPOINT, pool, NULL, NULL, 0);
}
static void
test_pool_discard_checkpoint(const char *pool)
{
int err = lzc_pool_checkpoint(pool);
if (err == 0 || err == ZFS_ERR_CHECKPOINT_EXISTS)
IOC_INPUT_TEST(ZFS_IOC_POOL_DISCARD_CHECKPOINT, pool, NULL,
NULL, 0);
}
static void
test_log_history(const char *pool)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_string(required, "message", "input check");
IOC_INPUT_TEST(ZFS_IOC_LOG_HISTORY, pool, required, NULL, 0);
nvlist_free(required);
}
static void
test_create(const char *pool)
{
char dataset[MAXNAMELEN + 32];
(void) snprintf(dataset, sizeof (dataset), "%s/create-fs", pool);
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
fnvlist_add_int32(required, "type", DMU_OST_ZFS);
fnvlist_add_uint64(props, "recordsize", 8192);
fnvlist_add_nvlist(optional, "props", props);
IOC_INPUT_TEST(ZFS_IOC_CREATE, dataset, required, optional, 0);
nvlist_free(required);
nvlist_free(optional);
}
static void
test_snapshot(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *snaps = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
fnvlist_add_boolean(snaps, snapshot);
fnvlist_add_nvlist(required, "snaps", snaps);
fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
fnvlist_add_nvlist(optional, "props", props);
IOC_INPUT_TEST(ZFS_IOC_SNAPSHOT, pool, required, optional, 0);
nvlist_free(props);
nvlist_free(snaps);
nvlist_free(optional);
nvlist_free(required);
}
static void
test_space_snaps(const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_string(required, "firstsnap", snapshot);
IOC_INPUT_TEST(ZFS_IOC_SPACE_SNAPS, snapshot, required, NULL, 0);
nvlist_free(required);
}
static void
test_destroy_snaps(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *snaps = fnvlist_alloc();
fnvlist_add_boolean(snaps, snapshot);
fnvlist_add_nvlist(required, "snaps", snaps);
IOC_INPUT_TEST(ZFS_IOC_DESTROY_SNAPS, pool, required, NULL, 0);
nvlist_free(snaps);
nvlist_free(required);
}
static void
test_bookmark(const char *pool, const char *snapshot, const char *bookmark)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_string(required, bookmark, snapshot);
IOC_INPUT_TEST_WILD(ZFS_IOC_BOOKMARK, pool, required, NULL, 0);
nvlist_free(required);
}
static void
test_get_bookmarks(const char *dataset)
{
nvlist_t *optional = fnvlist_alloc();
fnvlist_add_boolean(optional, "guid");
fnvlist_add_boolean(optional, "createtxg");
fnvlist_add_boolean(optional, "creation");
IOC_INPUT_TEST_WILD(ZFS_IOC_GET_BOOKMARKS, dataset, NULL, optional, 0);
nvlist_free(optional);
}
static void
test_destroy_bookmarks(const char *pool, const char *bookmark)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_boolean(required, bookmark);
IOC_INPUT_TEST_WILD(ZFS_IOC_DESTROY_BOOKMARKS, pool, required, NULL, 0);
nvlist_free(required);
}
static void
test_clone(const char *snapshot, const char *clone)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
fnvlist_add_string(required, "origin", snapshot);
IOC_INPUT_TEST(ZFS_IOC_CLONE, clone, required, NULL, 0);
nvlist_free(props);
nvlist_free(optional);
nvlist_free(required);
}
static void
test_rollback(const char *dataset, const char *snapshot)
{
nvlist_t *optional = fnvlist_alloc();
fnvlist_add_string(optional, "target", snapshot);
IOC_INPUT_TEST(ZFS_IOC_ROLLBACK, dataset, NULL, optional, B_FALSE);
nvlist_free(optional);
}
static void
test_hold(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *holds = fnvlist_alloc();
fnvlist_add_string(holds, snapshot, "libzfs_check_hold");
fnvlist_add_nvlist(required, "holds", holds);
fnvlist_add_int32(optional, "cleanup_fd", zfs_fd);
IOC_INPUT_TEST(ZFS_IOC_HOLD, pool, required, optional, 0);
nvlist_free(holds);
nvlist_free(optional);
nvlist_free(required);
}
static void
test_get_holds(const char *snapshot)
{
IOC_INPUT_TEST(ZFS_IOC_GET_HOLDS, snapshot, NULL, NULL, 0);
}
static void
test_release(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *release = fnvlist_alloc();
fnvlist_add_boolean(release, "libzfs_check_hold");
fnvlist_add_nvlist(required, snapshot, release);
IOC_INPUT_TEST_WILD(ZFS_IOC_RELEASE, pool, required, NULL, 0);
nvlist_free(release);
nvlist_free(required);
}
static void
test_send_new(const char *snapshot, int fd)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
fnvlist_add_int32(required, "fd", fd);
fnvlist_add_boolean(optional, "largeblockok");
fnvlist_add_boolean(optional, "embedok");
fnvlist_add_boolean(optional, "compressok");
fnvlist_add_boolean(optional, "rawok");
/*
* TODO - Resumable send is harder to set up. So we currently
* ignore testing for that variant.
*/
#if 0
fnvlist_add_string(optional, "fromsnap", from);
fnvlist_add_uint64(optional, "resume_object", resumeobj);
fnvlist_add_uint64(optional, "resume_offset", offset);
#endif
IOC_INPUT_TEST(ZFS_IOC_SEND_NEW, snapshot, required, optional, 0);
nvlist_free(optional);
nvlist_free(required);
}
static void
test_recv_new(const char *dataset, int fd)
{
dmu_replay_record_t drr = { 0 };
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
char snapshot[MAXNAMELEN + 32];
ssize_t count;
int cleanup_fd = open(ZFS_DEV, O_RDWR);
(void) snprintf(snapshot, sizeof (snapshot), "%s@replicant", dataset);
count = pread(fd, &drr, sizeof (drr), 0);
if (count != sizeof (drr)) {
(void) fprintf(stderr, "could not read stream: %s\n",
strerror(errno));
}
fnvlist_add_string(required, "snapname", snapshot);
fnvlist_add_byte_array(required, "begin_record", (uchar_t *)&drr,
sizeof (drr));
fnvlist_add_int32(required, "input_fd", fd);
fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
fnvlist_add_nvlist(optional, "localprops", props);
fnvlist_add_boolean(optional, "force");
fnvlist_add_int32(optional, "cleanup_fd", cleanup_fd);
/*
* TODO - Resumable receive is harder to set up. So we currently
* ignore testing for one.
*/
#if 0
fnvlist_add_nvlist(optional, "props", recvdprops);
fnvlist_add_string(optional, "origin", origin);
fnvlist_add_boolean(optional, "resumable");
fnvlist_add_uint64(optional, "action_handle", *action_handle);
#endif
IOC_INPUT_TEST(ZFS_IOC_RECV_NEW, dataset, required, optional, EBADE);
nvlist_free(props);
nvlist_free(optional);
nvlist_free(required);
(void) close(cleanup_fd);
}
static void
test_send_space(const char *snapshot1, const char *snapshot2)
{
nvlist_t *optional = fnvlist_alloc();
fnvlist_add_string(optional, "from", snapshot1);
fnvlist_add_boolean(optional, "largeblockok");
fnvlist_add_boolean(optional, "embedok");
fnvlist_add_boolean(optional, "compressok");
fnvlist_add_boolean(optional, "rawok");
IOC_INPUT_TEST(ZFS_IOC_SEND_SPACE, snapshot2, NULL, optional, 0);
nvlist_free(optional);
}
static void
test_remap(const char *dataset)
{
IOC_INPUT_TEST(ZFS_IOC_REMAP, dataset, NULL, NULL, 0);
}
static void
test_channel_program(const char *pool)
{
const char *program =
"arg = ...\n"
"argv = arg[\"argv\"]\n"
"return argv[1]";
char *const argv[1] = { "Hello World!" };
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *args = fnvlist_alloc();
fnvlist_add_string(required, "program", program);
fnvlist_add_string_array(args, "argv", argv, 1);
fnvlist_add_nvlist(required, "arg", args);
fnvlist_add_boolean_value(optional, "sync", B_TRUE);
fnvlist_add_uint64(optional, "instrlimit", 1000 * 1000);
fnvlist_add_uint64(optional, "memlimit", 8192 * 1024);
IOC_INPUT_TEST(ZFS_IOC_CHANNEL_PROGRAM, pool, required, optional, 0);
nvlist_free(args);
nvlist_free(optional);
nvlist_free(required);
}
#define WRAPPING_KEY_LEN 32
static void
test_load_key(const char *dataset)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *hidden = fnvlist_alloc();
uint8_t keydata[WRAPPING_KEY_LEN] = {0};
fnvlist_add_uint8_array(hidden, "wkeydata", keydata, sizeof (keydata));
fnvlist_add_nvlist(required, "hidden_args", hidden);
fnvlist_add_boolean(optional, "noop");
IOC_INPUT_TEST(ZFS_IOC_LOAD_KEY, dataset, required, optional, EINVAL);
nvlist_free(hidden);
nvlist_free(optional);
nvlist_free(required);
}
static void
test_change_key(const char *dataset)
{
IOC_INPUT_TEST(ZFS_IOC_CHANGE_KEY, dataset, NULL, NULL, EINVAL);
}
static void
test_unload_key(const char *dataset)
{
IOC_INPUT_TEST(ZFS_IOC_UNLOAD_KEY, dataset, NULL, NULL, EACCES);
}
static int
zfs_destroy(const char *dataset)
{
zfs_cmd_t zc = {"\0"};
int err;
(void) strncpy(zc.zc_name, dataset, sizeof (zc.zc_name));
zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
zc.zc_objset_type = DMU_OST_ZFS;
err = ioctl(zfs_fd, ZFS_IOC_DESTROY, &zc);
return (err == 0 ? 0 : errno);
}
static void
zfs_ioc_input_tests(const char *pool)
{
char filepath[] = "/tmp/ioc_test_file_XXXXXX";
char dataset[ZFS_MAX_DATASET_NAME_LEN];
char snapbase[ZFS_MAX_DATASET_NAME_LEN + 32];
char snapshot[ZFS_MAX_DATASET_NAME_LEN + 32];
char bookmark[ZFS_MAX_DATASET_NAME_LEN + 32];
char backup[ZFS_MAX_DATASET_NAME_LEN];
char clone[ZFS_MAX_DATASET_NAME_LEN];
int tmpfd, err;
/*
* Setup names and create a working dataset
*/
(void) snprintf(dataset, sizeof (dataset), "%s/test-fs", pool);
(void) snprintf(snapbase, sizeof (snapbase), "%s@snapbase", dataset);
(void) snprintf(snapshot, sizeof (snapshot), "%s@snapshot", dataset);
(void) snprintf(bookmark, sizeof (bookmark), "%s#bookmark", dataset);
(void) snprintf(clone, sizeof (clone), "%s/test-fs-clone", pool);
(void) snprintf(backup, sizeof (backup), "%s/backup", pool);
err = lzc_create(dataset, DMU_OST_ZFS, NULL, NULL, 0);
if (err) {
(void) fprintf(stderr, "could not create '%s': %s\n",
dataset, strerror(errno));
exit(2);
}
tmpfd = mkstemp(filepath);
if (tmpfd < 0) {
(void) fprintf(stderr, "could not create '%s': %s\n",
filepath, strerror(errno));
exit(2);
}
/*
* run a test for each ioctl
* Note that some test build on previous test operations
*/
test_pool_sync(pool);
test_pool_reopen(pool);
test_pool_checkpoint(pool);
test_pool_discard_checkpoint(pool);
test_log_history(pool);
test_create(dataset);
test_snapshot(pool, snapbase);
test_snapshot(pool, snapshot);
test_space_snaps(snapshot);
test_send_space(snapbase, snapshot);
test_send_new(snapshot, tmpfd);
test_recv_new(backup, tmpfd);
test_bookmark(pool, snapshot, bookmark);
test_get_bookmarks(dataset);
test_destroy_bookmarks(pool, bookmark);
test_hold(pool, snapshot);
test_get_holds(snapshot);
test_release(pool, snapshot);
test_clone(snapshot, clone);
zfs_destroy(clone);
test_rollback(dataset, snapshot);
test_destroy_snaps(pool, snapshot);
test_destroy_snaps(pool, snapbase);
test_remap(dataset);
test_channel_program(pool);
test_load_key(dataset);
test_change_key(dataset);
test_unload_key(dataset);
/*
* cleanup
*/
zfs_cmd_t zc = {"\0"};
nvlist_t *snaps = fnvlist_alloc();
fnvlist_add_boolean(snaps, snapshot);
(void) lzc_destroy_snaps(snaps, B_FALSE, NULL);
nvlist_free(snaps);
(void) zfs_destroy(dataset);
(void) zfs_destroy(backup);
(void) close(tmpfd);
(void) unlink(filepath);
/*
* All the unused slots should yield ZFS_ERR_IOC_CMD_UNAVAIL
*/
for (int i = 0; i < ARRAY_SIZE(ioc_skip); i++) {
if (ioc_tested[ioc_skip[i] - ZFS_IOC_FIRST])
(void) fprintf(stderr, "cmd %d tested, not skipped!\n",
(int)(ioc_skip[i] - ZFS_IOC_FIRST));
ioc_tested[ioc_skip[i] - ZFS_IOC_FIRST] = B_TRUE;
}
(void) strncpy(zc.zc_name, pool, sizeof (zc.zc_name));
zc.zc_name[sizeof (zc.zc_name) - 1] = '\0';
for (unsigned ioc = ZFS_IOC_FIRST; ioc < ZFS_IOC_LAST; ioc++) {
unsigned cmd = ioc - ZFS_IOC_FIRST;
if (ioc_tested[cmd])
continue;
if (ioctl(zfs_fd, ioc, &zc) != 0 &&
errno != ZFS_ERR_IOC_CMD_UNAVAIL) {
(void) fprintf(stderr, "cmd %d is missing a test case "
"(%d)\n", cmd, errno);
}
}
}
enum zfs_ioc_ref {
ZFS_IOC_BASE = ('Z' << 8),
LINUX_IOC_BASE = ('Z' << 8) + 0x80,
FREEBSD_IOC_BASE = ('Z' << 8) + 0xC0,
};
/*
* Canonical reference check of /dev/zfs ioctl numbers.
* These cannot change and new ioctl numbers must be appended.
*/
boolean_t
validate_ioc_values(void)
{
return (
ZFS_IOC_BASE + 0 == ZFS_IOC_POOL_CREATE &&
ZFS_IOC_BASE + 1 == ZFS_IOC_POOL_DESTROY &&
ZFS_IOC_BASE + 2 == ZFS_IOC_POOL_IMPORT &&
ZFS_IOC_BASE + 3 == ZFS_IOC_POOL_EXPORT &&
ZFS_IOC_BASE + 4 == ZFS_IOC_POOL_CONFIGS &&
ZFS_IOC_BASE + 5 == ZFS_IOC_POOL_STATS &&
ZFS_IOC_BASE + 6 == ZFS_IOC_POOL_TRYIMPORT &&
ZFS_IOC_BASE + 7 == ZFS_IOC_POOL_SCAN &&
ZFS_IOC_BASE + 8 == ZFS_IOC_POOL_FREEZE &&
ZFS_IOC_BASE + 9 == ZFS_IOC_POOL_UPGRADE &&
ZFS_IOC_BASE + 10 == ZFS_IOC_POOL_GET_HISTORY &&
ZFS_IOC_BASE + 11 == ZFS_IOC_VDEV_ADD &&
ZFS_IOC_BASE + 12 == ZFS_IOC_VDEV_REMOVE &&
ZFS_IOC_BASE + 13 == ZFS_IOC_VDEV_SET_STATE &&
ZFS_IOC_BASE + 14 == ZFS_IOC_VDEV_ATTACH &&
ZFS_IOC_BASE + 15 == ZFS_IOC_VDEV_DETACH &&
ZFS_IOC_BASE + 16 == ZFS_IOC_VDEV_SETPATH &&
ZFS_IOC_BASE + 17 == ZFS_IOC_VDEV_SETFRU &&
ZFS_IOC_BASE + 18 == ZFS_IOC_OBJSET_STATS &&
ZFS_IOC_BASE + 19 == ZFS_IOC_OBJSET_ZPLPROPS &&
ZFS_IOC_BASE + 20 == ZFS_IOC_DATASET_LIST_NEXT &&
ZFS_IOC_BASE + 21 == ZFS_IOC_SNAPSHOT_LIST_NEXT &&
ZFS_IOC_BASE + 22 == ZFS_IOC_SET_PROP &&
ZFS_IOC_BASE + 23 == ZFS_IOC_CREATE &&
ZFS_IOC_BASE + 24 == ZFS_IOC_DESTROY &&
ZFS_IOC_BASE + 25 == ZFS_IOC_ROLLBACK &&
ZFS_IOC_BASE + 26 == ZFS_IOC_RENAME &&
ZFS_IOC_BASE + 27 == ZFS_IOC_RECV &&
ZFS_IOC_BASE + 28 == ZFS_IOC_SEND &&
ZFS_IOC_BASE + 29 == ZFS_IOC_INJECT_FAULT &&
ZFS_IOC_BASE + 30 == ZFS_IOC_CLEAR_FAULT &&
ZFS_IOC_BASE + 31 == ZFS_IOC_INJECT_LIST_NEXT &&
ZFS_IOC_BASE + 32 == ZFS_IOC_ERROR_LOG &&
ZFS_IOC_BASE + 33 == ZFS_IOC_CLEAR &&
ZFS_IOC_BASE + 34 == ZFS_IOC_PROMOTE &&
ZFS_IOC_BASE + 35 == ZFS_IOC_SNAPSHOT &&
ZFS_IOC_BASE + 36 == ZFS_IOC_DSOBJ_TO_DSNAME &&
ZFS_IOC_BASE + 37 == ZFS_IOC_OBJ_TO_PATH &&
ZFS_IOC_BASE + 38 == ZFS_IOC_POOL_SET_PROPS &&
ZFS_IOC_BASE + 39 == ZFS_IOC_POOL_GET_PROPS &&
ZFS_IOC_BASE + 40 == ZFS_IOC_SET_FSACL &&
ZFS_IOC_BASE + 41 == ZFS_IOC_GET_FSACL &&
ZFS_IOC_BASE + 42 == ZFS_IOC_SHARE &&
ZFS_IOC_BASE + 43 == ZFS_IOC_INHERIT_PROP &&
ZFS_IOC_BASE + 44 == ZFS_IOC_SMB_ACL &&
ZFS_IOC_BASE + 45 == ZFS_IOC_USERSPACE_ONE &&
ZFS_IOC_BASE + 46 == ZFS_IOC_USERSPACE_MANY &&
ZFS_IOC_BASE + 47 == ZFS_IOC_USERSPACE_UPGRADE &&
ZFS_IOC_BASE + 48 == ZFS_IOC_HOLD &&
ZFS_IOC_BASE + 49 == ZFS_IOC_RELEASE &&
ZFS_IOC_BASE + 50 == ZFS_IOC_GET_HOLDS &&
ZFS_IOC_BASE + 51 == ZFS_IOC_OBJSET_RECVD_PROPS &&
ZFS_IOC_BASE + 52 == ZFS_IOC_VDEV_SPLIT &&
ZFS_IOC_BASE + 53 == ZFS_IOC_NEXT_OBJ &&
ZFS_IOC_BASE + 54 == ZFS_IOC_DIFF &&
ZFS_IOC_BASE + 55 == ZFS_IOC_TMP_SNAPSHOT &&
ZFS_IOC_BASE + 56 == ZFS_IOC_OBJ_TO_STATS &&
ZFS_IOC_BASE + 57 == ZFS_IOC_SPACE_WRITTEN &&
ZFS_IOC_BASE + 58 == ZFS_IOC_SPACE_SNAPS &&
ZFS_IOC_BASE + 59 == ZFS_IOC_DESTROY_SNAPS &&
ZFS_IOC_BASE + 60 == ZFS_IOC_POOL_REGUID &&
ZFS_IOC_BASE + 61 == ZFS_IOC_POOL_REOPEN &&
ZFS_IOC_BASE + 62 == ZFS_IOC_SEND_PROGRESS &&
ZFS_IOC_BASE + 63 == ZFS_IOC_LOG_HISTORY &&
ZFS_IOC_BASE + 64 == ZFS_IOC_SEND_NEW &&
ZFS_IOC_BASE + 65 == ZFS_IOC_SEND_SPACE &&
ZFS_IOC_BASE + 66 == ZFS_IOC_CLONE &&
ZFS_IOC_BASE + 67 == ZFS_IOC_BOOKMARK &&
ZFS_IOC_BASE + 68 == ZFS_IOC_GET_BOOKMARKS &&
ZFS_IOC_BASE + 69 == ZFS_IOC_DESTROY_BOOKMARKS &&
ZFS_IOC_BASE + 70 == ZFS_IOC_CHANNEL_PROGRAM &&
ZFS_IOC_BASE + 71 == ZFS_IOC_RECV_NEW &&
ZFS_IOC_BASE + 72 == ZFS_IOC_POOL_SYNC &&
ZFS_IOC_BASE + 73 == ZFS_IOC_LOAD_KEY &&
ZFS_IOC_BASE + 74 == ZFS_IOC_UNLOAD_KEY &&
ZFS_IOC_BASE + 75 == ZFS_IOC_CHANGE_KEY &&
ZFS_IOC_BASE + 76 == ZFS_IOC_REMAP &&
ZFS_IOC_BASE + 77 == ZFS_IOC_POOL_CHECKPOINT &&
ZFS_IOC_BASE + 78 == ZFS_IOC_POOL_DISCARD_CHECKPOINT &&
LINUX_IOC_BASE + 1 == ZFS_IOC_EVENTS_NEXT &&
LINUX_IOC_BASE + 2 == ZFS_IOC_EVENTS_CLEAR &&
LINUX_IOC_BASE + 3 == ZFS_IOC_EVENTS_SEEK);
}
int
main(int argc, const char *argv[])
{
if (argc != 2) {
(void) fprintf(stderr, "usage: %s <pool>\n", argv[0]);
exit(2);
}
if (!validate_ioc_values()) {
(void) fprintf(stderr, "WARNING: zfs_ioc_t has binary "
"incompatible command values\n");
exit(3);
}
(void) libzfs_core_init();
zfs_fd = open(ZFS_DEV, O_RDWR);
if (zfs_fd < 0) {
(void) fprintf(stderr, "open: %s\n", strerror(errno));
libzfs_core_fini();
exit(2);
}
zfs_ioc_input_tests(argv[1]);
(void) close(zfs_fd);
libzfs_core_fini();
return (unexpected_failures);
}

1
tests/zfs-tests/include/commands.cfg
View File

@ -160,6 +160,7 @@ export ZFSTEST_FILES='chg_usr_exec
file_trunc
file_write
largest_file
libzfs_input_check
mkbusy
mkfile
mkfiles

3
tests/zfs-tests/tests/functional/libzfs/Makefile.am
View File

@ -6,7 +6,8 @@ pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/libzfs
dist_pkgdata_SCRIPTS = \
cleanup.ksh \
setup.ksh
setup.ksh \
libzfs_input.ksh
DEFAULT_INCLUDES += \
-I$(top_srcdir)/include \

30
tests/zfs-tests/tests/functional/libzfs/libzfs_input.ksh Executable file
View File

@ -0,0 +1,30 @@
#!/bin/ksh -p
#
# 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.
#
#
# Copyright (c) 2018 by Delphix. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
verify_runnable "global"
#
# DESCRIPTION:
# run C program to test passing different input to libzfs ioctls
#
log_assert "libzfs ioctls handle invalid input arguments"
log_must libzfs_input_check $TESTPOOL
log_pass "libzfs ioctls handle invalid input arguments"