/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2013, Joyent, Inc. All rights reserved.
- * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
+ * Copyright (c) 2018, Joyent, Inc. All rights reserved.
+ * Copyright (c) 2011, 2018 by Delphix. All rights reserved.
+ * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
+ * Copyright (c) 2017 Datto Inc.
*/
/*
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
-#include <ctype.h>
#include <math.h>
#include <sys/stat.h>
#include <sys/mnttab.h>
#include <sys/mntent.h>
#include <sys/types.h>
-#include <wait.h>
+#include <sys/wait.h>
#include <libzfs.h>
#include <libzfs_core.h>
#include "zfs_prop.h"
#include "zfeature_common.h"
#include <zfs_fletcher.h>
+#include <libzutil.h>
+#include <sys/zfs_sysfs.h>
int
libzfs_errno(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"));
case EZFS_POSTSPLIT_ONLINE:
return (dgettext(TEXT_DOMAIN, "disk was split from this pool "
"into a new one"));
+ case EZFS_SCRUB_PAUSED:
+ return (dgettext(TEXT_DOMAIN, "scrub is paused; "
+ "use 'zpool scrub' to resume"));
case EZFS_SCRUBBING:
return (dgettext(TEXT_DOMAIN, "currently scrubbing; "
"use 'zpool scrub -s' to cancel current scrub"));
return (dgettext(TEXT_DOMAIN, "invalid diff data"));
case EZFS_POOLREADONLY:
return (dgettext(TEXT_DOMAIN, "pool is read-only"));
+ case EZFS_NO_PENDING:
+ return (dgettext(TEXT_DOMAIN, "operation is not "
+ "in progress"));
+ case EZFS_CHECKPOINT_EXISTS:
+ return (dgettext(TEXT_DOMAIN, "checkpoint exists"));
+ case EZFS_DISCARDING_CHECKPOINT:
+ return (dgettext(TEXT_DOMAIN, "currently discarding "
+ "checkpoint"));
+ case EZFS_NO_CHECKPOINT:
+ return (dgettext(TEXT_DOMAIN, "checkpoint does not exist"));
+ case EZFS_DEVRM_IN_PROGRESS:
+ return (dgettext(TEXT_DOMAIN, "device removal in progress"));
+ case EZFS_VDEV_TOO_BIG:
+ return (dgettext(TEXT_DOMAIN, "device exceeds supported size"));
+ case EZFS_ACTIVE_POOL:
+ return (dgettext(TEXT_DOMAIN, "pool is imported on a "
+ "different host"));
+ case EZFS_CRYPTOFAILED:
+ return (dgettext(TEXT_DOMAIN, "encryption failure"));
+ case EZFS_TOOMANY:
+ return (dgettext(TEXT_DOMAIN, "argument list too long"));
+ case EZFS_INITIALIZING:
+ return (dgettext(TEXT_DOMAIN, "currently initializing"));
+ case EZFS_NO_INITIALIZE:
+ return (dgettext(TEXT_DOMAIN, "there is no active "
+ "initialization"));
+ case EZFS_WRONG_PARENT:
+ return (dgettext(TEXT_DOMAIN, "invalid parent dataset"));
+ case EZFS_TRIMMING:
+ return (dgettext(TEXT_DOMAIN, "currently trimming"));
+ case EZFS_NO_TRIM:
+ return (dgettext(TEXT_DOMAIN, "there is no active trim"));
+ case EZFS_TRIM_NOTSUP:
+ return (dgettext(TEXT_DOMAIN, "trim operations are not "
+ "supported by this device"));
+ case EZFS_NO_RESILVER_DEFER:
+ return (dgettext(TEXT_DOMAIN, "this action requires the "
+ "resilver_defer feature"));
+ case EZFS_EXPORT_IN_PROGRESS:
+ return (dgettext(TEXT_DOMAIN, "pool export in progress"));
case EZFS_UNKNOWN:
return (dgettext(TEXT_DOMAIN, "unknown error"));
default:
"pool I/O is currently suspended"));
zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap);
break;
+ case EREMOTEIO:
+ zfs_verror(hdl, EZFS_ACTIVE_POOL, fmt, ap);
+ break;
+ case ZFS_ERR_UNKNOWN_SEND_STREAM_FEATURE:
+ 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;
+ case ZFS_ERR_WRONG_PARENT:
+ zfs_verror(hdl, EZFS_WRONG_PARENT, fmt, ap);
+ break;
default:
zfs_error_aux(hdl, strerror(error));
zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
zfs_verror(hdl, EZFS_BUSY, fmt, ap);
break;
+ /* There is no pending operation to cancel */
+ case ENOTACTIVE:
+ zfs_verror(hdl, EZFS_NO_PENDING, fmt, ap);
+ break;
+
case ENXIO:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"one or more devices is currently unavailable"));
"block size out of range or does not match"));
zfs_verror(hdl, EZFS_BADPROP, fmt, ap);
break;
-
+ case EREMOTEIO:
+ zfs_verror(hdl, EZFS_ACTIVE_POOL, fmt, ap);
+ break;
+ case ZFS_ERR_CHECKPOINT_EXISTS:
+ zfs_verror(hdl, EZFS_CHECKPOINT_EXISTS, fmt, ap);
+ break;
+ case ZFS_ERR_DISCARDING_CHECKPOINT:
+ zfs_verror(hdl, EZFS_DISCARDING_CHECKPOINT, fmt, ap);
+ break;
+ case ZFS_ERR_NO_CHECKPOINT:
+ zfs_verror(hdl, EZFS_NO_CHECKPOINT, fmt, ap);
+ break;
+ case ZFS_ERR_DEVRM_IN_PROGRESS:
+ zfs_verror(hdl, EZFS_DEVRM_IN_PROGRESS, fmt, ap);
+ break;
+ case ZFS_ERR_VDEV_TOO_BIG:
+ zfs_verror(hdl, EZFS_VDEV_TOO_BIG, fmt, ap);
+ break;
+ case ZFS_ERR_EXPORT_IN_PROGRESS:
+ zfs_verror(hdl, EZFS_EXPORT_IN_PROGRESS, 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);
return (ret);
}
-/*
- * Convert a number to an appropriately human-readable output.
- */
-void
-zfs_nicenum_format(uint64_t num, char *buf, size_t buflen,
- enum zfs_nicenum_format format)
-{
- uint64_t n = num;
- int index = 0;
- const char *u;
- const char *units[3][7] = {
- [ZFS_NICENUM_1024] = {"", "K", "M", "G", "T", "P", "E"},
- [ZFS_NICENUM_TIME] = {"ns", "us", "ms", "s", "?", "?", "?"}
- };
-
- const int units_len[] = {[ZFS_NICENUM_1024] = 6,
- [ZFS_NICENUM_TIME] = 4};
-
- const int k_unit[] = { [ZFS_NICENUM_1024] = 1024,
- [ZFS_NICENUM_TIME] = 1000};
-
- double val;
-
- if (format == ZFS_NICENUM_RAW) {
- snprintf(buf, buflen, "%llu", (u_longlong_t) num);
- return;
- }
-
-
- while (n >= k_unit[format] && index < units_len[format]) {
- n /= k_unit[format];
- index++;
- }
-
- u = units[format][index];
-
- /* Don't print 0ns times */
- if ((format == ZFS_NICENUM_TIME) && (num == 0)) {
- (void) snprintf(buf, buflen, "-");
- } else if ((index == 0) || ((num %
- (uint64_t) powl(k_unit[format], index)) == 0)) {
- /*
- * If this is an even multiple of the base, always display
- * without any decimal precision.
- */
- (void) snprintf(buf, buflen, "%llu%s", (u_longlong_t) n, u);
-
- } else {
- /*
- * We want to choose a precision that reflects the best choice
- * for fitting in 5 characters. This can get rather tricky when
- * we have numbers that are very close to an order of magnitude.
- * For example, when displaying 10239 (which is really 9.999K),
- * we want only a single place of precision for 10.0K. We could
- * develop some complex heuristics for this, but it's much
- * easier just to try each combination in turn.
- */
- int i;
- for (i = 2; i >= 0; i--) {
- val = (double) num /
- (uint64_t) powl(k_unit[format], index);
-
- /*
- * Don't print floating point values for time. Note,
- * we use floor() instead of round() here, since
- * round can result in undesirable results. For
- * example, if "num" is in the range of
- * 999500-999999, it will print out "1000us". This
- * doesn't happen if we use floor().
- */
- if (format == ZFS_NICENUM_TIME) {
- if (snprintf(buf, buflen, "%d%s",
- (unsigned int) floor(val), u) <= 5)
- break;
-
- } else {
- if (snprintf(buf, buflen, "%.*f%s", i,
- val, u) <= 5)
- break;
- }
- }
- }
-}
-
-/*
- * Convert a number to an appropriately human-readable output.
- */
-void
-zfs_nicenum(uint64_t num, char *buf, size_t buflen)
-{
- zfs_nicenum_format(num, buf, buflen, ZFS_NICENUM_1024);
-}
-
-/*
- * Convert a time to an appropriately human-readable output.
- * @num: Time in nanoseconds
- */
-void
-zfs_nicetime(uint64_t num, char *buf, size_t buflen)
-{
- zfs_nicenum_format(num, buf, buflen, ZFS_NICENUM_TIME);
-}
-
-/*
- * Print out a raw number with correct column spacing
- */
-void
-zfs_niceraw(uint64_t num, char *buf, size_t buflen)
-{
- zfs_nicenum_format(num, buf, buflen, ZFS_NICENUM_RAW);
-}
-
-
-
void
libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
{
return (access(path, F_OK) == 0);
}
-int
-libzfs_run_process(const char *path, char *argv[], int flags)
+
+/*
+ * Read lines from an open file descriptor and store them in an array of
+ * strings until EOF. lines[] will be allocated and populated with all the
+ * lines read. All newlines are replaced with NULL terminators for
+ * convenience. lines[] must be freed after use with libzfs_free_str_array().
+ *
+ * Returns the number of lines read.
+ */
+static int
+libzfs_read_stdout_from_fd(int fd, char **lines[])
+{
+
+ FILE *fp;
+ int lines_cnt = 0;
+ size_t len = 0;
+ char *line = NULL;
+ char **tmp_lines = NULL, **tmp;
+ char *nl = NULL;
+ int rc;
+
+ fp = fdopen(fd, "r");
+ if (fp == NULL)
+ return (0);
+ while (1) {
+ rc = getline(&line, &len, fp);
+ if (rc == -1)
+ break;
+
+ tmp = realloc(tmp_lines, sizeof (*tmp_lines) * (lines_cnt + 1));
+ if (tmp == NULL) {
+ /* Return the lines we were able to process */
+ break;
+ }
+ tmp_lines = tmp;
+
+ /* Terminate newlines */
+ if ((nl = strchr(line, '\n')) != NULL)
+ *nl = '\0';
+ tmp_lines[lines_cnt] = line;
+ lines_cnt++;
+ line = NULL;
+ }
+ fclose(fp);
+ *lines = tmp_lines;
+ return (lines_cnt);
+}
+
+static int
+libzfs_run_process_impl(const char *path, char *argv[], char *env[], int flags,
+ char **lines[], int *lines_cnt)
{
pid_t pid;
int error, devnull_fd;
+ int link[2];
+
+ /*
+ * Setup a pipe between our child and parent process if we're
+ * reading stdout.
+ */
+ if ((lines != NULL) && pipe(link) == -1)
+ return (-ESTRPIPE);
pid = vfork();
if (pid == 0) {
+ /* Child process */
devnull_fd = open("/dev/null", O_WRONLY);
if (devnull_fd < 0)
_exit(-1);
- if (!(flags & STDOUT_VERBOSE))
+ if (!(flags & STDOUT_VERBOSE) && (lines == NULL))
(void) dup2(devnull_fd, STDOUT_FILENO);
+ else if (lines != NULL) {
+ /* Save the output to lines[] */
+ dup2(link[1], STDOUT_FILENO);
+ close(link[0]);
+ close(link[1]);
+ }
if (!(flags & STDERR_VERBOSE))
(void) dup2(devnull_fd, STDERR_FILENO);
close(devnull_fd);
- (void) execvp(path, argv);
+ if (flags & NO_DEFAULT_PATH) {
+ if (env == NULL)
+ execv(path, argv);
+ else
+ execve(path, argv, env);
+ } else {
+ if (env == NULL)
+ execvp(path, argv);
+ else
+ execvpe(path, argv, env);
+ }
+
_exit(-1);
} else if (pid > 0) {
+ /* Parent process */
int status;
while ((error = waitpid(pid, &status, 0)) == -1 &&
- errno == EINTR);
+ errno == EINTR) { }
if (error < 0 || !WIFEXITED(status))
return (-1);
+ if (lines != NULL) {
+ close(link[1]);
+ *lines_cnt = libzfs_read_stdout_from_fd(link[0], lines);
+ }
return (WEXITSTATUS(status));
}
return (-1);
}
+int
+libzfs_run_process(const char *path, char *argv[], int flags)
+{
+ return (libzfs_run_process_impl(path, argv, NULL, flags, NULL, NULL));
+}
+
+/*
+ * Run a command and store its stdout lines in an array of strings (lines[]).
+ * lines[] is allocated and populated for you, and the number of lines is set in
+ * lines_cnt. lines[] must be freed after use with libzfs_free_str_array().
+ * All newlines (\n) in lines[] are terminated for convenience.
+ */
+int
+libzfs_run_process_get_stdout(const char *path, char *argv[], char *env[],
+ char **lines[], int *lines_cnt)
+{
+ return (libzfs_run_process_impl(path, argv, env, 0, lines, lines_cnt));
+}
+
+/*
+ * Same as libzfs_run_process_get_stdout(), but run without $PATH set. This
+ * means that *path needs to be the full path to the executable.
+ */
+int
+libzfs_run_process_get_stdout_nopath(const char *path, char *argv[],
+ char *env[], char **lines[], int *lines_cnt)
+{
+ return (libzfs_run_process_impl(path, argv, env, NO_DEFAULT_PATH,
+ lines, lines_cnt));
+}
+
+/*
+ * Free an array of strings. Free both the strings contained in the array and
+ * the array itself.
+ */
+void
+libzfs_free_str_array(char **strs, int count)
+{
+ while (--count >= 0)
+ free(strs[count]);
+
+ free(strs);
+}
+
+/*
+ * Returns 1 if environment variable is set to "YES", "yes", "ON", "on", or
+ * a non-zero number.
+ *
+ * Returns 0 otherwise.
+ */
+int
+libzfs_envvar_is_set(char *envvar)
+{
+ char *env = getenv(envvar);
+ if (env && (strtoul(env, NULL, 0) > 0 ||
+ (!strncasecmp(env, "YES", 3) && strnlen(env, 4) == 3) ||
+ (!strncasecmp(env, "ON", 2) && strnlen(env, 3) == 2)))
+ return (1);
+
+ return (0);
+}
+
/*
* Verify the required ZFS_DEV device is available and optionally attempt
* to load the ZFS modules. Under normal circumstances the modules
load = 0;
}
- if (load && libzfs_run_process("/sbin/modprobe", argv, 0))
- return (ENOEXEC);
- }
+ if (load) {
+ if (libzfs_run_process("/sbin/modprobe", argv, 0))
+ return (ENOEXEC);
+ }
- /* Module loading is synchronous it must be available */
- if (!libzfs_module_loaded(module))
- return (ENXIO);
+ if (!libzfs_module_loaded(module))
+ return (ENXIO);
+ }
/*
* Device creation by udev is asynchronous and waiting may be
return (NULL);
}
- hdl->libzfs_sharetab = fopen("/etc/dfs/sharetab", "r");
+ hdl->libzfs_sharetab = fopen(ZFS_SHARETAB, "r");
if (libzfs_core_init() != 0) {
(void) close(hdl->libzfs_fd);
(void) fclose(hdl->libzfs_mnttab);
- (void) fclose(hdl->libzfs_sharetab);
+ if (hdl->libzfs_sharetab)
+ (void) fclose(hdl->libzfs_sharetab);
free(hdl);
return (NULL);
}
libzfs_mnttab_init(hdl);
fletcher_4_init();
+ if (getenv("ZFS_PROP_DEBUG") != NULL) {
+ hdl->libzfs_prop_debug = B_TRUE;
+ }
+
+ /*
+ * For testing, remove some settable properties and features
+ */
+ if (libzfs_envvar_is_set("ZFS_SYSFS_PROP_SUPPORT_TEST")) {
+ zprop_desc_t *proptbl;
+
+ proptbl = zpool_prop_get_table();
+ proptbl[ZPOOL_PROP_COMMENT].pd_zfs_mod_supported = B_FALSE;
+
+ proptbl = zfs_prop_get_table();
+ proptbl[ZFS_PROP_DNODESIZE].pd_zfs_mod_supported = B_FALSE;
+
+ zfeature_info_t *ftbl = spa_feature_table;
+ ftbl[SPA_FEATURE_LARGE_BLOCKS].fi_zfs_mod_supported = B_FALSE;
+ }
+
return (hdl);
}
(void) fclose(hdl->libzfs_sharetab);
zfs_uninit_libshare(hdl);
zpool_free_handles(hdl);
- libzfs_fru_clear(hdl, B_TRUE);
namespace_clear(hdl);
libzfs_mnttab_fini(hdl);
libzfs_core_fini();
* Given a name, determine whether or not it's a valid path
* (starts with '/' or "./"). If so, walk the mnttab trying
* to match the device number. If not, treat the path as an
- * fs/vol/snap name.
+ * fs/vol/snap/bkmark name.
*/
zfs_handle_t *
zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype)
return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM));
}
-/*
- * Append partition suffix to an otherwise fully qualified device path.
- * This is used to generate the name the full path as its stored in
- * ZPOOL_CONFIG_PATH for whole disk devices. On success the new length
- * of 'path' will be returned on error a negative value is returned.
- */
-int
-zfs_append_partition(char *path, size_t max_len)
-{
- int len = strlen(path);
-
- if ((strncmp(path, UDISK_ROOT, strlen(UDISK_ROOT)) == 0) ||
- (strncmp(path, ZVOL_ROOT, strlen(ZVOL_ROOT)) == 0)) {
- if (len + 6 >= max_len)
- return (-1);
-
- (void) strcat(path, "-part1");
- len += 6;
- } else {
- if (len + 2 >= max_len)
- return (-1);
-
- if (isdigit(path[len-1])) {
- (void) strcat(path, "p1");
- len += 2;
- } else {
- (void) strcat(path, "1");
- len += 1;
- }
- }
-
- return (len);
-}
-
-/*
- * Given a shorthand device name check if a file by that name exists in any
- * of the 'zpool_default_import_path' or ZPOOL_IMPORT_PATH directories. If
- * one is found, store its fully qualified path in the 'path' buffer passed
- * by the caller and return 0, otherwise return an error.
- */
-int
-zfs_resolve_shortname(const char *name, char *path, size_t len)
-{
- int i, error = -1;
- char *dir, *env, *envdup;
-
- env = getenv("ZPOOL_IMPORT_PATH");
- errno = ENOENT;
-
- if (env) {
- envdup = strdup(env);
- dir = strtok(envdup, ":");
- while (dir && error) {
- (void) snprintf(path, len, "%s/%s", dir, name);
- error = access(path, F_OK);
- dir = strtok(NULL, ":");
- }
- free(envdup);
- } else {
- for (i = 0; i < DEFAULT_IMPORT_PATH_SIZE && error < 0; i++) {
- (void) snprintf(path, len, "%s/%s",
- zpool_default_import_path[i], name);
- error = access(path, F_OK);
- }
- }
-
- return (error ? ENOENT : 0);
-}
-
-/*
- * Given a shorthand device name look for a match against 'cmp_name'. This
- * is done by checking all prefix expansions using either the default
- * 'zpool_default_import_paths' or the ZPOOL_IMPORT_PATH environment
- * variable. Proper partition suffixes will be appended if this is a
- * whole disk. When a match is found 0 is returned otherwise ENOENT.
- */
-static int
-zfs_strcmp_shortname(char *name, char *cmp_name, int wholedisk)
-{
- int path_len, cmp_len, i = 0, error = ENOENT;
- char *dir, *env, *envdup = NULL;
- char path_name[MAXPATHLEN];
-
- cmp_len = strlen(cmp_name);
- env = getenv("ZPOOL_IMPORT_PATH");
-
- if (env) {
- envdup = strdup(env);
- dir = strtok(envdup, ":");
- } else {
- dir = zpool_default_import_path[i];
- }
-
- while (dir) {
- /* Trim trailing directory slashes from ZPOOL_IMPORT_PATH */
- while (dir[strlen(dir)-1] == '/')
- dir[strlen(dir)-1] = '\0';
-
- path_len = snprintf(path_name, MAXPATHLEN, "%s/%s", dir, name);
- if (wholedisk)
- path_len = zfs_append_partition(path_name, MAXPATHLEN);
-
- if ((path_len == cmp_len) && strcmp(path_name, cmp_name) == 0) {
- error = 0;
- break;
- }
-
- if (env) {
- dir = strtok(NULL, ":");
- } else if (++i < DEFAULT_IMPORT_PATH_SIZE) {
- dir = zpool_default_import_path[i];
- } else {
- dir = NULL;
- }
- }
-
- if (env)
- free(envdup);
-
- return (error);
-}
-
-/*
- * Given either a shorthand or fully qualified path name look for a match
- * against 'cmp'. The passed name will be expanded as needed for comparison
- * purposes and redundant slashes stripped to ensure an accurate match.
- */
-int
-zfs_strcmp_pathname(char *name, char *cmp, int wholedisk)
-{
- int path_len, cmp_len;
- char path_name[MAXPATHLEN];
- char cmp_name[MAXPATHLEN];
- char *dir, *dup;
-
- /* Strip redundant slashes if one exists due to ZPOOL_IMPORT_PATH */
- memset(cmp_name, 0, MAXPATHLEN);
- dup = strdup(cmp);
- dir = strtok(dup, "/");
- while (dir) {
- strlcat(cmp_name, "/", sizeof (cmp_name));
- strlcat(cmp_name, dir, sizeof (cmp_name));
- dir = strtok(NULL, "/");
- }
- free(dup);
-
- if (name[0] != '/')
- return (zfs_strcmp_shortname(name, cmp_name, wholedisk));
-
- (void) strlcpy(path_name, name, MAXPATHLEN);
- path_len = strlen(path_name);
- cmp_len = strlen(cmp_name);
-
- if (wholedisk) {
- path_len = zfs_append_partition(path_name, MAXPATHLEN);
- if (path_len == -1)
- return (ENOMEM);
- }
-
- if ((path_len != cmp_len) || strcmp(path_name, cmp_name))
- return (ENOENT);
-
- return (0);
-}
-
/*
* Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
* an ioctl().
case ZPROP_SRC_RECEIVED:
str = "received";
break;
+
+ default:
+ str = NULL;
+ assert(!"unhandled zprop_source_t");
}
break;
const char *propname;
char *value;
boolean_t isnone = B_FALSE;
+ boolean_t isauto = B_FALSE;
+ int err = 0;
if (type == ZFS_TYPE_POOL) {
proptype = zpool_prop_get_type(prop);
"'%s' must be a string"), nvpair_name(elem));
goto error;
}
- (void) nvpair_value_string(elem, svalp);
+ err = nvpair_value_string(elem, svalp);
+ if (err != 0) {
+ zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
+ "'%s' is invalid"), nvpair_name(elem));
+ goto error;
+ }
if (strlen(*svalp) >= ZFS_MAXPROPLEN) {
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"'%s' is too long"), nvpair_name(elem));
(void) nvpair_value_string(elem, &value);
if (strcmp(value, "none") == 0) {
isnone = B_TRUE;
- } else if (zfs_nicestrtonum(hdl, value, ivalp)
- != 0) {
+ } else if (strcmp(value, "auto") == 0) {
+ isauto = B_TRUE;
+ } else if (zfs_nicestrtonum(hdl, value, ivalp) != 0) {
goto error;
}
} else if (datatype == DATA_TYPE_UINT64) {
prop == ZFS_PROP_SNAPSHOT_LIMIT)) {
*ivalp = UINT64_MAX;
}
+
+ /*
+ * Special handling for setting 'refreservation' to 'auto'. Use
+ * UINT64_MAX to tell the caller to use zfs_fix_auto_resv().
+ * 'auto' is only allowed on volumes.
+ */
+ if (isauto) {
+ switch (prop) {
+ case ZFS_PROP_REFRESERVATION:
+ if ((type & ZFS_TYPE_VOLUME) == 0) {
+ zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
+ "'%s=auto' only allowed on "
+ "volumes"), nvpair_name(elem));
+ goto error;
+ }
+ *ivalp = UINT64_MAX;
+ break;
+ default:
+ zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
+ "'auto' is invalid value for '%s'"),
+ nvpair_name(elem));
+ goto error;
+ }
+ }
+
break;
case PROP_TYPE_INDEX:
{
return (zprop_iter_common(func, cb, show_all, ordered, type));
}
+
+/*
+ * Fill given version buffer with zfs userland version
+ */
+void
+zfs_version_userland(char *version, int len)
+{
+ (void) strlcpy(version, ZFS_META_ALIAS, len);
+}
+
+/*
+ * Fill given version buffer with zfs kernel version read from ZFS_SYSFS_DIR
+ * Returns 0 on success, and -1 on error (with errno set)
+ */
+int
+zfs_version_kernel(char *version, int len)
+{
+ int _errno;
+ int fd;
+ int rlen;
+
+ if ((fd = open(ZFS_SYSFS_DIR "/version", O_RDONLY)) == -1)
+ return (-1);
+
+ if ((rlen = read(fd, version, len)) == -1) {
+ version[0] = '\0';
+ _errno = errno;
+ (void) close(fd);
+ errno = _errno;
+ return (-1);
+ }
+
+ version[rlen-1] = '\0'; /* discard '\n' */
+
+ if (close(fd) == -1)
+ return (-1);
+
+ return (0);
+}
+
+/*
+ * Prints both zfs userland and kernel versions
+ * Returns 0 on success, and -1 on error (with errno set)
+ */
+int
+zfs_version_print(void)
+{
+ char zver_userland[128];
+ char zver_kernel[128];
+
+ if (zfs_version_kernel(zver_kernel, sizeof (zver_kernel)) == -1) {
+ fprintf(stderr, "zfs_version_kernel() failed: %s\n",
+ strerror(errno));
+ return (-1);
+ }
+
+ zfs_version_userland(zver_userland, sizeof (zver_userland));
+
+ (void) printf("%s\n", zver_userland);
+ (void) printf("zfs-kmod-%s\n", zver_kernel);
+
+ return (0);
+}
projects / zfs / blobdiff