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diff --git a/cddl/contrib/opensolaris/cmd/zinject/zinject.c b/cddl/contrib/opensolaris/cmd/zinject/zinject.c
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-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License (the "License").
- * You may not use this file except in compliance with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
- */
-
-/*
- * ZFS Fault Injector
- *
- * This userland component takes a set of options and uses libzpool to translate
- * from a user-visible object type and name to an internal representation.
- * There are two basic types of faults: device faults and data faults.
- *
- *
- * DEVICE FAULTS
- *
- * Errors can be injected into a particular vdev using the '-d' option. This
- * option takes a path or vdev GUID to uniquely identify the device within a
- * pool. There are two types of errors that can be injected, EIO and ENXIO,
- * that can be controlled through the '-e' option. The default is ENXIO. For
- * EIO failures, any attempt to read data from the device will return EIO, but
- * subsequent attempt to reopen the device will succeed. For ENXIO failures,
- * any attempt to read from the device will return EIO, but any attempt to
- * reopen the device will also return ENXIO.
- * For label faults, the -L option must be specified. This allows faults
- * to be injected into either the nvlist, uberblock, pad1, or pad2 region
- * of all the labels for the specified device.
- *
- * This form of the command looks like:
- *
- * zinject -d device [-e errno] [-L <uber | nvlist | pad1 | pad2>] pool
- *
- *
- * DATA FAULTS
- *
- * We begin with a tuple of the form:
- *
- * <type,level,range,object>
- *
- * type A string describing the type of data to target. Each type
- * implicitly describes how to interpret 'object'. Currently,
- * the following values are supported:
- *
- * data User data for a file
- * dnode Dnode for a file or directory
- *
- * The following MOS objects are special. Instead of injecting
- * errors on a particular object or blkid, we inject errors across
- * all objects of the given type.
- *
- * mos Any data in the MOS
- * mosdir object directory
- * config pool configuration
- * bpobj blkptr list
- * spacemap spacemap
- * metaslab metaslab
- * errlog persistent error log
- *
- * level Object level. Defaults to '0', not applicable to all types. If
- * a range is given, this corresponds to the indirect block
- * corresponding to the specific range.
- *
- * range A numerical range [start,end) within the object. Defaults to
- * the full size of the file.
- *
- * object A string describing the logical location of the object. For
- * files and directories (currently the only supported types),
- * this is the path of the object on disk.
- *
- * This is translated, via libzpool, into the following internal representation:
- *
- * <type,objset,object,level,range>
- *
- * These types should be self-explanatory. This tuple is then passed to the
- * kernel via a special ioctl() to initiate fault injection for the given
- * object. Note that 'type' is not strictly necessary for fault injection, but
- * is used when translating existing faults into a human-readable string.
- *
- *
- * The command itself takes one of the forms:
- *
- * zinject
- * zinject <-a | -u pool>
- * zinject -c <id|all>
- * zinject [-q] <-t type> [-f freq] [-u] [-a] [-m] [-e errno] [-l level]
- * [-r range] <object>
- * zinject [-f freq] [-a] [-m] [-u] -b objset:object:level:start:end pool
- *
- * With no arguments, the command prints all currently registered injection
- * handlers, with their numeric identifiers.
- *
- * The '-c' option will clear the given handler, or all handlers if 'all' is
- * specified.
- *
- * The '-e' option takes a string describing the errno to simulate. This must
- * be either 'io' or 'checksum'. In most cases this will result in the same
- * behavior, but RAID-Z will produce a different set of ereports for this
- * situation.
- *
- * The '-a', '-u', and '-m' flags toggle internal flush behavior. If '-a' is
- * specified, then the ARC cache is flushed appropriately. If '-u' is
- * specified, then the underlying SPA is unloaded. Either of these flags can be
- * specified independently of any other handlers. The '-m' flag automatically
- * does an unmount and remount of the underlying dataset to aid in flushing the
- * cache.
- *
- * The '-f' flag controls the frequency of errors injected, expressed as a
- * integer percentage between 1 and 100. The default is 100.
- *
- * The this form is responsible for actually injecting the handler into the
- * framework. It takes the arguments described above, translates them to the
- * internal tuple using libzpool, and then issues an ioctl() to register the
- * handler.
- *
- * The final form can target a specific bookmark, regardless of whether a
- * human-readable interface has been designed. It allows developers to specify
- * a particular block by number.
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <strings.h>
-#include <unistd.h>
-
-#include <sys/fs/zfs.h>
-#include <sys/param.h>
-#include <sys/mount.h>
-
-#include <libzfs.h>
-#include <libzfs_compat.h>
-
-#undef verify /* both libzfs.h and zfs_context.h want to define this */
-
-#include "zinject.h"
-
-libzfs_handle_t *g_zfs;
-int zfs_fd;
-
-#ifndef ECKSUM
-#define ECKSUM EBADE
-#endif
-
-static const char *errtable[TYPE_INVAL] = {
- "data",
- "dnode",
- "mos",
- "mosdir",
- "metaslab",
- "config",
- "bpobj",
- "spacemap",
- "errlog",
- "uber",
- "nvlist",
- "pad1",
- "pad2"
-};
-
-static err_type_t
-name_to_type(const char *arg)
-{
- int i;
- for (i = 0; i < TYPE_INVAL; i++)
- if (strcmp(errtable[i], arg) == 0)
- return (i);
-
- return (TYPE_INVAL);
-}
-
-static const char *
-type_to_name(uint64_t type)
-{
- switch (type) {
- case DMU_OT_OBJECT_DIRECTORY:
- return ("mosdir");
- case DMU_OT_OBJECT_ARRAY:
- return ("metaslab");
- case DMU_OT_PACKED_NVLIST:
- return ("config");
- case DMU_OT_BPOBJ:
- return ("bpobj");
- case DMU_OT_SPACE_MAP:
- return ("spacemap");
- case DMU_OT_ERROR_LOG:
- return ("errlog");
- default:
- return ("-");
- }
-}
-
-
-/*
- * Print usage message.
- */
-void
-usage(void)
-{
- (void) printf(
- "usage:\n"
- "\n"
- "\tzinject\n"
- "\n"
- "\t\tList all active injection records.\n"
- "\n"
- "\tzinject -c <id|all>\n"
- "\n"
- "\t\tClear the particular record (if given a numeric ID), or\n"
- "\t\tall records if 'all' is specificed.\n"
- "\n"
- "\tzinject -p <function name> pool\n"
- "\n"
- "\t\tInject a panic fault at the specified function. Only \n"
- "\t\tfunctions which call spa_vdev_config_exit(), or \n"
- "\t\tspa_vdev_exit() will trigger a panic.\n"
- "\n"
- "\tzinject -d device [-e errno] [-L <nvlist|uber|pad1|pad2>] [-F]\n"
- "\t [-T <read|write|free|claim|all> pool\n"
- "\n"
- "\t\tInject a fault into a particular device or the device's\n"
- "\t\tlabel. Label injection can either be 'nvlist', 'uber',\n "
- "\t\t'pad1', or 'pad2'.\n"
- "\t\t'errno' can be 'nxio' (the default), 'io', or 'dtl'.\n"
- "\n"
- "\tzinject -d device -A <degrade|fault> pool\n"
- "\n"
- "\t\tPerform a specific action on a particular device\n"
- "\n"
- "\tzinject -d device -D latency:lanes pool\n"
- "\n"
- "\t\tAdd an artificial delay to IO requests on a particular\n"
- "\t\tdevice, such that the requests take a minimum of 'latency'\n"
- "\t\tmilliseconds to complete. Each delay has an associated\n"
- "\t\tnumber of 'lanes' which defines the number of concurrent\n"
- "\t\tIO requests that can be processed.\n"
- "\n"
- "\t\tFor example, with a single lane delay of 10 ms (-D 10:1),\n"
- "\t\tthe device will only be able to service a single IO request\n"
- "\t\tat a time with each request taking 10 ms to complete. So,\n"
- "\t\tif only a single request is submitted every 10 ms, the\n"
- "\t\taverage latency will be 10 ms; but if more than one request\n"
- "\t\tis submitted every 10 ms, the average latency will be more\n"
- "\t\tthan 10 ms.\n"
- "\n"
- "\t\tSimilarly, if a delay of 10 ms is specified to have two\n"
- "\t\tlanes (-D 10:2), then the device will be able to service\n"
- "\t\ttwo requests at a time, each with a minimum latency of\n"
- "\t\t10 ms. So, if two requests are submitted every 10 ms, then\n"
- "\t\tthe average latency will be 10 ms; but if more than two\n"
- "\t\trequests are submitted every 10 ms, the average latency\n"
- "\t\twill be more than 10 ms.\n"
- "\n"
- "\t\tAlso note, these delays are additive. So two invocations\n"
- "\t\tof '-D 10:1', is roughly equivalent to a single invocation\n"
- "\t\tof '-D 10:2'. This also means, one can specify multiple\n"
- "\t\tlanes with differing target latencies. For example, an\n"
- "\t\tinvocation of '-D 10:1' followed by '-D 25:2' will\n"
- "\t\tcreate 3 lanes on the device; one lane with a latency\n"
- "\t\tof 10 ms and two lanes with a 25 ms latency.\n"
- "\n"
- "\tzinject -I [-s <seconds> | -g <txgs>] pool\n"
- "\n"
- "\t\tCause the pool to stop writing blocks yet not\n"
- "\t\treport errors for a duration. Simulates buggy hardware\n"
- "\t\tthat fails to honor cache flush requests.\n"
- "\t\tDefault duration is 30 seconds. The machine is panicked\n"
- "\t\tat the end of the duration.\n"
- "\n"
- "\tzinject -b objset:object:level:blkid pool\n"
- "\n"
- "\t\tInject an error into pool 'pool' with the numeric bookmark\n"
- "\t\tspecified by the remaining tuple. Each number is in\n"
- "\t\thexidecimal, and only one block can be specified.\n"
- "\n"
- "\tzinject [-q] <-t type> [-e errno] [-l level] [-r range]\n"
- "\t [-a] [-m] [-u] [-f freq] <object>\n"
- "\n"
- "\t\tInject an error into the object specified by the '-t' option\n"
- "\t\tand the object descriptor. The 'object' parameter is\n"
- "\t\tinterperted depending on the '-t' option.\n"
- "\n"
- "\t\t-q\tQuiet mode. Only print out the handler number added.\n"
- "\t\t-e\tInject a specific error. Must be either 'io' or\n"
- "\t\t\t'checksum'. Default is 'io'.\n"
- "\t\t-l\tInject error at a particular block level. Default is "
- "0.\n"
- "\t\t-m\tAutomatically remount underlying filesystem.\n"
- "\t\t-r\tInject error over a particular logical range of an\n"
- "\t\t\tobject. Will be translated to the appropriate blkid\n"
- "\t\t\trange according to the object's properties.\n"
- "\t\t-a\tFlush the ARC cache. Can be specified without any\n"
- "\t\t\tassociated object.\n"
- "\t\t-u\tUnload the associated pool. Can be specified with only\n"
- "\t\t\ta pool object.\n"
- "\t\t-f\tOnly inject errors a fraction of the time. Expressed as\n"
- "\t\t\ta percentage between 1 and 100.\n"
- "\n"
- "\t-t data\t\tInject an error into the plain file contents of a\n"
- "\t\t\tfile. The object must be specified as a complete path\n"
- "\t\t\tto a file on a ZFS filesystem.\n"
- "\n"
- "\t-t dnode\tInject an error into the metadnode in the block\n"
- "\t\t\tcorresponding to the dnode for a file or directory. The\n"
- "\t\t\t'-r' option is incompatible with this mode. The object\n"
- "\t\t\tis specified as a complete path to a file or directory\n"
- "\t\t\ton a ZFS filesystem.\n"
- "\n"
- "\t-t <mos>\tInject errors into the MOS for objects of the given\n"
- "\t\t\ttype. Valid types are: mos, mosdir, config, bpobj,\n"
- "\t\t\tspacemap, metaslab, errlog. The only valid <object> is\n"
- "\t\t\tthe poolname.\n");
-}
-
-static int
-iter_handlers(int (*func)(int, const char *, zinject_record_t *, void *),
- void *data)
-{
- zfs_cmd_t zc = { 0 };
- int ret;
-
- while (ioctl(zfs_fd, ZFS_IOC_INJECT_LIST_NEXT, &zc) == 0)
- if ((ret = func((int)zc.zc_guid, zc.zc_name,
- &zc.zc_inject_record, data)) != 0)
- return (ret);
-
- if (errno != ENOENT) {
- (void) fprintf(stderr, "Unable to list handlers: %s\n",
- strerror(errno));
- return (-1);
- }
-
- return (0);
-}
-
-static int
-print_data_handler(int id, const char *pool, zinject_record_t *record,
- void *data)
-{
- int *count = data;
-
- if (record->zi_guid != 0 || record->zi_func[0] != '\0')
- return (0);
-
- if (*count == 0) {
- (void) printf("%3s %-15s %-6s %-6s %-8s %3s %-15s\n",
- "ID", "POOL", "OBJSET", "OBJECT", "TYPE", "LVL", "RANGE");
- (void) printf("--- --------------- ------ "
- "------ -------- --- ---------------\n");
- }
-
- *count += 1;
-
- (void) printf("%3d %-15s %-6llu %-6llu %-8s %3d ", id, pool,
- (u_longlong_t)record->zi_objset, (u_longlong_t)record->zi_object,
- type_to_name(record->zi_type), record->zi_level);
-
- if (record->zi_start == 0 &&
- record->zi_end == -1ULL)
- (void) printf("all\n");
- else
- (void) printf("[%llu, %llu]\n", (u_longlong_t)record->zi_start,
- (u_longlong_t)record->zi_end);
-
- return (0);
-}
-
-static int
-print_device_handler(int id, const char *pool, zinject_record_t *record,
- void *data)
-{
- int *count = data;
-
- if (record->zi_guid == 0 || record->zi_func[0] != '\0')
- return (0);
-
- if (record->zi_cmd == ZINJECT_DELAY_IO)
- return (0);
-
- if (*count == 0) {
- (void) printf("%3s %-15s %s\n", "ID", "POOL", "GUID");
- (void) printf("--- --------------- ----------------\n");
- }
-
- *count += 1;
-
- (void) printf("%3d %-15s %llx\n", id, pool,
- (u_longlong_t)record->zi_guid);
-
- return (0);
-}
-
-static int
-print_delay_handler(int id, const char *pool, zinject_record_t *record,
- void *data)
-{
- int *count = data;
-
- if (record->zi_guid == 0 || record->zi_func[0] != '\0')
- return (0);
-
- if (record->zi_cmd != ZINJECT_DELAY_IO)
- return (0);
-
- if (*count == 0) {
- (void) printf("%3s %-15s %-15s %-15s %s\n",
- "ID", "POOL", "DELAY (ms)", "LANES", "GUID");
- (void) printf("--- --------------- --------------- "
- "--------------- ----------------\n");
- }
-
- *count += 1;
-
- (void) printf("%3d %-15s %-15llu %-15llu %llx\n", id, pool,
- (u_longlong_t)NSEC2MSEC(record->zi_timer),
- (u_longlong_t)record->zi_nlanes,
- (u_longlong_t)record->zi_guid);
-
- return (0);
-}
-
-static int
-print_panic_handler(int id, const char *pool, zinject_record_t *record,
- void *data)
-{
- int *count = data;
-
- if (record->zi_func[0] == '\0')
- return (0);
-
- if (*count == 0) {
- (void) printf("%3s %-15s %s\n", "ID", "POOL", "FUNCTION");
- (void) printf("--- --------------- ----------------\n");
- }
-
- *count += 1;
-
- (void) printf("%3d %-15s %s\n", id, pool, record->zi_func);
-
- return (0);
-}
-
-/*
- * Print all registered error handlers. Returns the number of handlers
- * registered.
- */
-static int
-print_all_handlers(void)
-{
- int count = 0, total = 0;
-
- (void) iter_handlers(print_device_handler, &count);
- if (count > 0) {
- total += count;
- (void) printf("\n");
- count = 0;
- }
-
- (void) iter_handlers(print_delay_handler, &count);
- if (count > 0) {
- total += count;
- (void) printf("\n");
- count = 0;
- }
-
- (void) iter_handlers(print_data_handler, &count);
- if (count > 0) {
- total += count;
- (void) printf("\n");
- count = 0;
- }
-
- (void) iter_handlers(print_panic_handler, &count);
-
- return (count + total);
-}
-
-/* ARGSUSED */
-static int
-cancel_one_handler(int id, const char *pool, zinject_record_t *record,
- void *data)
-{
- zfs_cmd_t zc = { 0 };
-
- zc.zc_guid = (uint64_t)id;
-
- if (ioctl(zfs_fd, ZFS_IOC_CLEAR_FAULT, &zc) != 0) {
- (void) fprintf(stderr, "failed to remove handler %d: %s\n",
- id, strerror(errno));
- return (1);
- }
-
- return (0);
-}
-
-/*
- * Remove all fault injection handlers.
- */
-static int
-cancel_all_handlers(void)
-{
- int ret = iter_handlers(cancel_one_handler, NULL);
-
- if (ret == 0)
- (void) printf("removed all registered handlers\n");
-
- return (ret);
-}
-
-/*
- * Remove a specific fault injection handler.
- */
-static int
-cancel_handler(int id)
-{
- zfs_cmd_t zc = { 0 };
-
- zc.zc_guid = (uint64_t)id;
-
- if (ioctl(zfs_fd, ZFS_IOC_CLEAR_FAULT, &zc) != 0) {
- (void) fprintf(stderr, "failed to remove handler %d: %s\n",
- id, strerror(errno));
- return (1);
- }
-
- (void) printf("removed handler %d\n", id);
-
- return (0);
-}
-
-/*
- * Register a new fault injection handler.
- */
-static int
-register_handler(const char *pool, int flags, zinject_record_t *record,
- int quiet)
-{
- zfs_cmd_t zc = { 0 };
-
- (void) strcpy(zc.zc_name, pool);
- zc.zc_inject_record = *record;
- zc.zc_guid = flags;
-
- if (ioctl(zfs_fd, ZFS_IOC_INJECT_FAULT, &zc) != 0) {
- (void) fprintf(stderr, "failed to add handler: %s\n",
- strerror(errno));
- return (1);
- }
-
- if (flags & ZINJECT_NULL)
- return (0);
-
- if (quiet) {
- (void) printf("%llu\n", (u_longlong_t)zc.zc_guid);
- } else {
- (void) printf("Added handler %llu with the following "
- "properties:\n", (u_longlong_t)zc.zc_guid);
- (void) printf(" pool: %s\n", pool);
- if (record->zi_guid) {
- (void) printf(" vdev: %llx\n",
- (u_longlong_t)record->zi_guid);
- } else if (record->zi_func[0] != '\0') {
- (void) printf(" panic function: %s\n",
- record->zi_func);
- } else if (record->zi_duration > 0) {
- (void) printf(" time: %lld seconds\n",
- (u_longlong_t)record->zi_duration);
- } else if (record->zi_duration < 0) {
- (void) printf(" txgs: %lld \n",
- (u_longlong_t)-record->zi_duration);
- } else {
- (void) printf("objset: %llu\n",
- (u_longlong_t)record->zi_objset);
- (void) printf("object: %llu\n",
- (u_longlong_t)record->zi_object);
- (void) printf(" type: %llu\n",
- (u_longlong_t)record->zi_type);
- (void) printf(" level: %d\n", record->zi_level);
- if (record->zi_start == 0 &&
- record->zi_end == -1ULL)
- (void) printf(" range: all\n");
- else
- (void) printf(" range: [%llu, %llu)\n",
- (u_longlong_t)record->zi_start,
- (u_longlong_t)record->zi_end);
- }
- }
-
- return (0);
-}
-
-int
-perform_action(const char *pool, zinject_record_t *record, int cmd)
-{
- zfs_cmd_t zc = { 0 };
-
- ASSERT(cmd == VDEV_STATE_DEGRADED || cmd == VDEV_STATE_FAULTED);
- (void) strlcpy(zc.zc_name, pool, sizeof (zc.zc_name));
- zc.zc_guid = record->zi_guid;
- zc.zc_cookie = cmd;
-
- if (ioctl(zfs_fd, ZFS_IOC_VDEV_SET_STATE, &zc) == 0)
- return (0);
-
- return (1);
-}
-
-static int
-parse_delay(char *str, uint64_t *delay, uint64_t *nlanes)
-{
- unsigned long scan_delay;
- unsigned long scan_nlanes;
-
- if (sscanf(str, "%lu:%lu", &scan_delay, &scan_nlanes) != 2)
- return (1);
-
- /*
- * We explicitly disallow a delay of zero here, because we key
- * off this value being non-zero in translate_device(), to
- * determine if the fault is a ZINJECT_DELAY_IO fault or not.
- */
- if (scan_delay == 0)
- return (1);
-
- /*
- * The units for the CLI delay parameter is milliseconds, but
- * the data passed to the kernel is interpreted as nanoseconds.
- * Thus we scale the milliseconds to nanoseconds here, and this
- * nanosecond value is used to pass the delay to the kernel.
- */
- *delay = MSEC2NSEC(scan_delay);
- *nlanes = scan_nlanes;
-
- return (0);
-}
-
-int
-main(int argc, char **argv)
-{
- int c;
- char *range = NULL;
- char *cancel = NULL;
- char *end;
- char *raw = NULL;
- char *device = NULL;
- int level = 0;
- int quiet = 0;
- int error = 0;
- int domount = 0;
- int io_type = ZIO_TYPES;
- int action = VDEV_STATE_UNKNOWN;
- err_type_t type = TYPE_INVAL;
- err_type_t label = TYPE_INVAL;
- zinject_record_t record = { 0 };
- char pool[MAXNAMELEN];
- char dataset[MAXNAMELEN];
- zfs_handle_t *zhp;
- int nowrites = 0;
- int dur_txg = 0;
- int dur_secs = 0;
- int ret;
- int flags = 0;
-
- if ((g_zfs = libzfs_init()) == NULL) {
- (void) fprintf(stderr, "internal error: failed to "
- "initialize ZFS library\n");
- return (1);
- }
-
- libzfs_print_on_error(g_zfs, B_TRUE);
-
- if ((zfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
- (void) fprintf(stderr, "failed to open ZFS device\n");
- return (1);
- }
-
- if (argc == 1) {
- /*
- * No arguments. Print the available handlers. If there are no
- * available handlers, direct the user to '-h' for help
- * information.
- */
- if (print_all_handlers() == 0) {
- (void) printf("No handlers registered.\n");
- (void) printf("Run 'zinject -h' for usage "
- "information.\n");
- }
-
- return (0);
- }
-
- while ((c = getopt(argc, argv,
- ":aA:b:d:D:f:Fg:qhIc:t:T:l:mr:s:e:uL:p:")) != -1) {
- switch (c) {
- case 'a':
- flags |= ZINJECT_FLUSH_ARC;
- break;
- case 'A':
- if (strcasecmp(optarg, "degrade") == 0) {
- action = VDEV_STATE_DEGRADED;
- } else if (strcasecmp(optarg, "fault") == 0) {
- action = VDEV_STATE_FAULTED;
- } else {
- (void) fprintf(stderr, "invalid action '%s': "
- "must be 'degrade' or 'fault'\n", optarg);
- usage();
- return (1);
- }
- break;
- case 'b':
- raw = optarg;
- break;
- case 'c':
- cancel = optarg;
- break;
- case 'd':
- device = optarg;
- break;
- case 'D':
- ret = parse_delay(optarg, &record.zi_timer,
- &record.zi_nlanes);
- if (ret != 0) {
- (void) fprintf(stderr, "invalid i/o delay "
- "value: '%s'\n", optarg);
- usage();
- return (1);
- }
- break;
- case 'e':
- if (strcasecmp(optarg, "io") == 0) {
- error = EIO;
- } else if (strcasecmp(optarg, "checksum") == 0) {
- error = ECKSUM;
- } else if (strcasecmp(optarg, "nxio") == 0) {
- error = ENXIO;
- } else if (strcasecmp(optarg, "dtl") == 0) {
- error = ECHILD;
- } else {
- (void) fprintf(stderr, "invalid error type "
- "'%s': must be 'io', 'checksum' or "
- "'nxio'\n", optarg);
- usage();
- return (1);
- }
- break;
- case 'f':
- record.zi_freq = atoi(optarg);
- if (record.zi_freq < 1 || record.zi_freq > 100) {
- (void) fprintf(stderr, "frequency range must "
- "be in the range (0, 100]\n");
- return (1);
- }
- break;
- case 'F':
- record.zi_failfast = B_TRUE;
- break;
- case 'g':
- dur_txg = 1;
- record.zi_duration = (int)strtol(optarg, &end, 10);
- if (record.zi_duration <= 0 || *end != '\0') {
- (void) fprintf(stderr, "invalid duration '%s': "
- "must be a positive integer\n", optarg);
- usage();
- return (1);
- }
- /* store duration of txgs as its negative */
- record.zi_duration *= -1;
- break;
- case 'h':
- usage();
- return (0);
- case 'I':
- /* default duration, if one hasn't yet been defined */
- nowrites = 1;
- if (dur_secs == 0 && dur_txg == 0)
- record.zi_duration = 30;
- break;
- case 'l':
- level = (int)strtol(optarg, &end, 10);
- if (*end != '\0') {
- (void) fprintf(stderr, "invalid level '%s': "
- "must be an integer\n", optarg);
- usage();
- return (1);
- }
- break;
- case 'm':
- domount = 1;
- break;
- case 'p':
- (void) strlcpy(record.zi_func, optarg,
- sizeof (record.zi_func));
- record.zi_cmd = ZINJECT_PANIC;
- break;
- case 'q':
- quiet = 1;
- break;
- case 'r':
- range = optarg;
- break;
- case 's':
- dur_secs = 1;
- record.zi_duration = (int)strtol(optarg, &end, 10);
- if (record.zi_duration <= 0 || *end != '\0') {
- (void) fprintf(stderr, "invalid duration '%s': "
- "must be a positive integer\n", optarg);
- usage();
- return (1);
- }
- break;
- case 'T':
- if (strcasecmp(optarg, "read") == 0) {
- io_type = ZIO_TYPE_READ;
- } else if (strcasecmp(optarg, "write") == 0) {
- io_type = ZIO_TYPE_WRITE;
- } else if (strcasecmp(optarg, "free") == 0) {
- io_type = ZIO_TYPE_FREE;
- } else if (strcasecmp(optarg, "claim") == 0) {
- io_type = ZIO_TYPE_CLAIM;
- } else if (strcasecmp(optarg, "all") == 0) {
- io_type = ZIO_TYPES;
- } else {
- (void) fprintf(stderr, "invalid I/O type "
- "'%s': must be 'read', 'write', 'free', "
- "'claim' or 'all'\n", optarg);
- usage();
- return (1);
- }
- break;
- case 't':
- if ((type = name_to_type(optarg)) == TYPE_INVAL &&
- !MOS_TYPE(type)) {
- (void) fprintf(stderr, "invalid type '%s'\n",
- optarg);
- usage();
- return (1);
- }
- break;
- case 'u':
- flags |= ZINJECT_UNLOAD_SPA;
- break;
- case 'L':
- if ((label = name_to_type(optarg)) == TYPE_INVAL &&
- !LABEL_TYPE(type)) {
- (void) fprintf(stderr, "invalid label type "
- "'%s'\n", optarg);
- usage();
- return (1);
- }
- break;
- case ':':
- (void) fprintf(stderr, "option -%c requires an "
- "operand\n", optopt);
- usage();
- return (1);
- case '?':
- (void) fprintf(stderr, "invalid option '%c'\n",
- optopt);
- usage();
- return (2);
- }
- }
-
- argc -= optind;
- argv += optind;
-
- if (record.zi_duration != 0)
- record.zi_cmd = ZINJECT_IGNORED_WRITES;
-
- if (cancel != NULL) {
- /*
- * '-c' is invalid with any other options.
- */
- if (raw != NULL || range != NULL || type != TYPE_INVAL ||
- level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED) {
- (void) fprintf(stderr, "cancel (-c) incompatible with "
- "any other options\n");
- usage();
- return (2);
- }
- if (argc != 0) {
- (void) fprintf(stderr, "extraneous argument to '-c'\n");
- usage();
- return (2);
- }
-
- if (strcmp(cancel, "all") == 0) {
- return (cancel_all_handlers());
- } else {
- int id = (int)strtol(cancel, &end, 10);
- if (*end != '\0') {
- (void) fprintf(stderr, "invalid handle id '%s':"
- " must be an integer or 'all'\n", cancel);
- usage();
- return (1);
- }
- return (cancel_handler(id));
- }
- }
-
- if (device != NULL) {
- /*
- * Device (-d) injection uses a completely different mechanism
- * for doing injection, so handle it separately here.
- */
- if (raw != NULL || range != NULL || type != TYPE_INVAL ||
- level != 0 || record.zi_cmd != ZINJECT_UNINITIALIZED) {
- (void) fprintf(stderr, "device (-d) incompatible with "
- "data error injection\n");
- usage();
- return (2);
- }
-
- if (argc != 1) {
- (void) fprintf(stderr, "device (-d) injection requires "
- "a single pool name\n");
- usage();
- return (2);
- }
-
- (void) strcpy(pool, argv[0]);
- dataset[0] = '\0';
-
- if (error == ECKSUM) {
- (void) fprintf(stderr, "device error type must be "
- "'io' or 'nxio'\n");
- return (1);
- }
-
- record.zi_iotype = io_type;
- if (translate_device(pool, device, label, &record) != 0)
- return (1);
- if (!error)
- error = ENXIO;
-
- if (action != VDEV_STATE_UNKNOWN)
- return (perform_action(pool, &record, action));
-
- } else if (raw != NULL) {
- if (range != NULL || type != TYPE_INVAL || level != 0 ||
- record.zi_cmd != ZINJECT_UNINITIALIZED) {
- (void) fprintf(stderr, "raw (-b) format with "
- "any other options\n");
- usage();
- return (2);
- }
-
- if (argc != 1) {
- (void) fprintf(stderr, "raw (-b) format expects a "
- "single pool name\n");
- usage();
- return (2);
- }
-
- (void) strcpy(pool, argv[0]);
- dataset[0] = '\0';
-
- if (error == ENXIO) {
- (void) fprintf(stderr, "data error type must be "
- "'checksum' or 'io'\n");
- return (1);
- }
-
- record.zi_cmd = ZINJECT_DATA_FAULT;
- if (translate_raw(raw, &record) != 0)
- return (1);
- if (!error)
- error = EIO;
- } else if (record.zi_cmd == ZINJECT_PANIC) {
- if (raw != NULL || range != NULL || type != TYPE_INVAL ||
- level != 0 || device != NULL) {
- (void) fprintf(stderr, "panic (-p) incompatible with "
- "other options\n");
- usage();
- return (2);
- }
-
- if (argc < 1 || argc > 2) {
- (void) fprintf(stderr, "panic (-p) injection requires "
- "a single pool name and an optional id\n");
- usage();
- return (2);
- }
-
- (void) strcpy(pool, argv[0]);
- if (argv[1] != NULL)
- record.zi_type = atoi(argv[1]);
- dataset[0] = '\0';
- } else if (record.zi_cmd == ZINJECT_IGNORED_WRITES) {
- if (nowrites == 0) {
- (void) fprintf(stderr, "-s or -g meaningless "
- "without -I (ignore writes)\n");
- usage();
- return (2);
- } else if (dur_secs && dur_txg) {
- (void) fprintf(stderr, "choose a duration either "
- "in seconds (-s) or a number of txgs (-g) "
- "but not both\n");
- usage();
- return (2);
- } else if (argc != 1) {
- (void) fprintf(stderr, "ignore writes (-I) "
- "injection requires a single pool name\n");
- usage();
- return (2);
- }
-
- (void) strcpy(pool, argv[0]);
- dataset[0] = '\0';
- } else if (type == TYPE_INVAL) {
- if (flags == 0) {
- (void) fprintf(stderr, "at least one of '-b', '-d', "
- "'-t', '-a', '-p', '-I' or '-u' "
- "must be specified\n");
- usage();
- return (2);
- }
-
- if (argc == 1 && (flags & ZINJECT_UNLOAD_SPA)) {
- (void) strcpy(pool, argv[0]);
- dataset[0] = '\0';
- } else if (argc != 0) {
- (void) fprintf(stderr, "extraneous argument for "
- "'-f'\n");
- usage();
- return (2);
- }
-
- flags |= ZINJECT_NULL;
- } else {
- if (argc != 1) {
- (void) fprintf(stderr, "missing object\n");
- usage();
- return (2);
- }
-
- if (error == ENXIO) {
- (void) fprintf(stderr, "data error type must be "
- "'checksum' or 'io'\n");
- return (1);
- }
-
- record.zi_cmd = ZINJECT_DATA_FAULT;
- if (translate_record(type, argv[0], range, level, &record, pool,
- dataset) != 0)
- return (1);
- if (!error)
- error = EIO;
- }
-
- /*
- * If this is pool-wide metadata, unmount everything. The ioctl() will
- * unload the pool, so that we trigger spa-wide reopen of metadata next
- * time we access the pool.
- */
- if (dataset[0] != '\0' && domount) {
- if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_DATASET)) == NULL)
- return (1);
-
- if (zfs_unmount(zhp, NULL, 0) != 0)
- return (1);
- }
-
- record.zi_error = error;
-
- ret = register_handler(pool, flags, &record, quiet);
-
- if (dataset[0] != '\0' && domount)
- ret = (zfs_mount(zhp, NULL, 0) != 0);
-
- libzfs_fini(g_zfs);
-
- return (ret);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 13:15:27 +0000