OpenSolaris_b135/cmd/zoneadm/zoneadm.c
/*
* 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 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* zoneadm is a command interpreter for zone administration. It is all in
* C (i.e., no lex/yacc), and all the argument passing is argc/argv based.
* main() calls parse_and_run() which calls cmd_match(), then invokes the
* appropriate command's handler function. The rest of the program is the
* handler functions and their helper functions.
*
* Some of the helper functions are used largely to simplify I18N: reducing
* the need for translation notes. This is particularly true of many of
* the zerror() calls: doing e.g. zerror(gettext("%s failed"), "foo") rather
* than zerror(gettext("foo failed")) with a translation note indicating
* that "foo" need not be translated.
*/
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <stdarg.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <wait.h>
#include <zone.h>
#include <priv.h>
#include <locale.h>
#include <libintl.h>
#include <libzonecfg.h>
#include <bsm/adt.h>
#include <sys/brand.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <assert.h>
#include <sys/sockio.h>
#include <sys/mntent.h>
#include <limits.h>
#include <dirent.h>
#include <uuid/uuid.h>
#include <fcntl.h>
#include <door.h>
#include <macros.h>
#include <libgen.h>
#include <fnmatch.h>
#include <sys/modctl.h>
#include <libbrand.h>
#include <libscf.h>
#include <procfs.h>
#include <strings.h>
#include <pool.h>
#include <sys/pool.h>
#include <sys/priocntl.h>
#include <sys/fsspriocntl.h>
#include <libdladm.h>
#include <libdllink.h>
#include "zoneadm.h"
#define MAXARGS 8
/* Reflects kernel zone entries */
typedef struct zone_entry {
zoneid_t zid;
char zname[ZONENAME_MAX];
char *zstate_str;
zone_state_t zstate_num;
char zbrand[MAXNAMELEN];
char zroot[MAXPATHLEN];
char zuuid[UUID_PRINTABLE_STRING_LENGTH];
zone_iptype_t ziptype;
} zone_entry_t;
#define CLUSTER_BRAND_NAME "cluster"
static zone_entry_t *zents;
static size_t nzents;
#define LOOPBACK_IF "lo0"
#define SOCKET_AF(af) (((af) == AF_UNSPEC) ? AF_INET : (af))
struct net_if {
char *name;
int af;
};
/* 0755 is the default directory mode. */
#define DEFAULT_DIR_MODE \
(S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
struct cmd {
uint_t cmd_num; /* command number */
char *cmd_name; /* command name */
char *short_usage; /* short form help */
int (*handler)(int argc, char *argv[]); /* function to call */
};
#define SHELP_HELP "help"
#define SHELP_BOOT "boot [-- boot_arguments]"
#define SHELP_HALT "halt"
#define SHELP_READY "ready"
#define SHELP_REBOOT "reboot [-- boot_arguments]"
#define SHELP_LIST "list [-cipv]"
#define SHELP_VERIFY "verify"
#define SHELP_INSTALL "install [-x nodataset] [brand-specific args]"
#define SHELP_UNINSTALL "uninstall [-F] [brand-specific args]"
#define SHELP_CLONE "clone [-m method] [-s <ZFS snapshot>] "\
"[brand-specific args] zonename"
#define SHELP_MOVE "move zonepath"
#define SHELP_DETACH "detach [-n] [brand-specific args]"
#define SHELP_ATTACH "attach [-F] [-n <path>] [brand-specific args]"
#define SHELP_MARK "mark incomplete"
#define EXEC_PREFIX "exec "
#define EXEC_LEN (strlen(EXEC_PREFIX))
#define RMCOMMAND "/usr/bin/rm -rf"
static int cleanup_zonepath(char *, boolean_t);
static int help_func(int argc, char *argv[]);
static int ready_func(int argc, char *argv[]);
static int boot_func(int argc, char *argv[]);
static int halt_func(int argc, char *argv[]);
static int reboot_func(int argc, char *argv[]);
static int list_func(int argc, char *argv[]);
static int verify_func(int argc, char *argv[]);
static int install_func(int argc, char *argv[]);
static int uninstall_func(int argc, char *argv[]);
static int mount_func(int argc, char *argv[]);
static int unmount_func(int argc, char *argv[]);
static int clone_func(int argc, char *argv[]);
static int move_func(int argc, char *argv[]);
static int detach_func(int argc, char *argv[]);
static int attach_func(int argc, char *argv[]);
static int mark_func(int argc, char *argv[]);
static int apply_func(int argc, char *argv[]);
static int sysboot_func(int argc, char *argv[]);
static int sanity_check(char *zone, int cmd_num, boolean_t running,
boolean_t unsafe_when_running, boolean_t force);
static int cmd_match(char *cmd);
static int verify_details(int, char *argv[]);
static int verify_brand(zone_dochandle_t, int, char *argv[]);
static int invoke_brand_handler(int, char *argv[]);
static struct cmd cmdtab[] = {
{ CMD_HELP, "help", SHELP_HELP, help_func },
{ CMD_BOOT, "boot", SHELP_BOOT, boot_func },
{ CMD_HALT, "halt", SHELP_HALT, halt_func },
{ CMD_READY, "ready", SHELP_READY, ready_func },
{ CMD_REBOOT, "reboot", SHELP_REBOOT, reboot_func },
{ CMD_LIST, "list", SHELP_LIST, list_func },
{ CMD_VERIFY, "verify", SHELP_VERIFY, verify_func },
{ CMD_INSTALL, "install", SHELP_INSTALL, install_func },
{ CMD_UNINSTALL, "uninstall", SHELP_UNINSTALL,
uninstall_func },
/* mount and unmount are private commands for admin/install */
{ CMD_MOUNT, "mount", NULL, mount_func },
{ CMD_UNMOUNT, "unmount", NULL, unmount_func },
{ CMD_CLONE, "clone", SHELP_CLONE, clone_func },
{ CMD_MOVE, "move", SHELP_MOVE, move_func },
{ CMD_DETACH, "detach", SHELP_DETACH, detach_func },
{ CMD_ATTACH, "attach", SHELP_ATTACH, attach_func },
{ CMD_MARK, "mark", SHELP_MARK, mark_func },
{ CMD_APPLY, "apply", NULL, apply_func },
{ CMD_SYSBOOT, "sysboot", NULL, sysboot_func }
};
/* global variables */
/* set early in main(), never modified thereafter, used all over the place */
static char *execname;
static char target_brand[MAXNAMELEN];
static char default_brand[MAXPATHLEN];
static char *locale;
char *target_zone;
static char *target_uuid;
char *
cmd_to_str(int cmd_num)
{
assert(cmd_num >= CMD_MIN && cmd_num <= CMD_MAX);
return (cmdtab[cmd_num].cmd_name);
}
/* This is a separate function because of gettext() wrapping. */
static char *
long_help(int cmd_num)
{
assert(cmd_num >= CMD_MIN && cmd_num <= CMD_MAX);
switch (cmd_num) {
case CMD_HELP:
return (gettext("Print usage message."));
case CMD_BOOT:
return (gettext("Activates (boots) specified zone. See "
"zoneadm(1m) for valid boot\n\targuments."));
case CMD_HALT:
return (gettext("Halts specified zone, bypassing shutdown "
"scripts and removing runtime\n\tresources of the zone."));
case CMD_READY:
return (gettext("Prepares a zone for running applications but "
"does not start any user\n\tprocesses in the zone."));
case CMD_REBOOT:
return (gettext("Restarts the zone (equivalent to a halt / "
"boot sequence).\n\tFails if the zone is not active. "
"See zoneadm(1m) for valid boot\n\targuments."));
case CMD_LIST:
return (gettext("Lists the current zones, or a "
"specific zone if indicated. By default,\n\tall "
"running zones are listed, though this can be "
"expanded to all\n\tinstalled zones with the -i "
"option or all configured zones with the\n\t-c "
"option. When used with the general -z <zone> and/or -u "
"<uuid-match>\n\toptions, lists only the specified "
"matching zone, but lists it\n\tregardless of its state, "
"and the -i and -c options are disallowed. The\n\t-v "
"option can be used to display verbose information: zone "
"name, id,\n\tcurrent state, root directory and options. "
"The -p option can be used\n\tto request machine-parsable "
"output. The -v and -p options are mutually\n\texclusive."
" If neither -v nor -p is used, just the zone name is "
"listed."));
case CMD_VERIFY:
return (gettext("Check to make sure the configuration "
"can safely be instantiated\n\ton the machine: "
"physical network interfaces exist, etc."));
case CMD_INSTALL:
return (gettext("Install the configuration on to the system. "
"The -x nodataset option\n\tcan be used to prevent the "
"creation of a new ZFS file system for the\n\tzone "
"(assuming the zonepath is within a ZFS file system).\n\t"
"All other arguments are passed to the brand installation "
"function;\n\tsee brands(5) for more information."));
case CMD_UNINSTALL:
return (gettext("Uninstall the configuration from the system. "
"The -F flag can be used\n\tto force the action. All "
"other arguments are passed to the brand\n\tuninstall "
"function; see brands(5) for more information."));
case CMD_CLONE:
return (gettext("Clone the installation of another zone. "
"The -m option can be used to\n\tspecify 'copy' which "
"forces a copy of the source zone. The -s option\n\t"
"can be used to specify the name of a ZFS snapshot "
"that was taken from\n\ta previous clone command. The "
"snapshot will be used as the source\n\tinstead of "
"creating a new ZFS snapshot. All other arguments are "
"passed\n\tto the brand clone function; see "
"brands(5) for more information."));
case CMD_MOVE:
return (gettext("Move the zone to a new zonepath."));
case CMD_DETACH:
return (gettext("Detach the zone from the system. The zone "
"state is changed to\n\t'configured' (but the files under "
"the zonepath are untouched).\n\tThe zone can subsequently "
"be attached, or can be moved to another\n\tsystem and "
"attached there. The -n option can be used to specify\n\t"
"'no-execute' mode. When -n is used, the information "
"needed to attach\n\tthe zone is sent to standard output "
"but the zone is not actually\n\tdetached. All other "
"arguments are passed to the brand detach function;\n\tsee "
"brands(5) for more information."));
case CMD_ATTACH:
return (gettext("Attach the zone to the system. The zone "
"state must be 'configured'\n\tprior to attach; upon "
"successful completion, the zone state will be\n\t"
"'installed'. The system software on the current "
"system must be\n\tcompatible with the software on the "
"zone's original system.\n\tSpecify -F "
"to force the attach and skip software compatibility "
"tests.\n\tThe -n option can be used to specify "
"'no-execute' mode. When -n is\n\tused, the information "
"needed to attach the zone is read from the\n\tspecified "
"path and the configuration is only validated. The path "
"can\n\tbe '-' to specify standard input. The -F and -n "
"options are mutually\n\texclusive. All other arguments "
"are passed to the brand attach\n\tfunction; see "
"brands(5) for more information."));
case CMD_MARK:
return (gettext("Set the state of the zone. This can be used "
"to force the zone\n\tstate to 'incomplete' "
"administratively if some activity has rendered\n\tthe "
"zone permanently unusable. The only valid state that "
"may be\n\tspecified is 'incomplete'."));
default:
return ("");
}
/* NOTREACHED */
return (NULL);
}
/*
* Called with explicit B_TRUE when help is explicitly requested, B_FALSE for
* unexpected errors.
*/
static int
usage(boolean_t explicit)
{
int i;
FILE *fd = explicit ? stdout : stderr;
(void) fprintf(fd, "%s:\t%s help\n", gettext("usage"), execname);
(void) fprintf(fd, "\t%s [-z <zone>] [-u <uuid-match>] list\n",
execname);
(void) fprintf(fd, "\t%s {-z <zone>|-u <uuid-match>} <%s>\n", execname,
gettext("subcommand"));
(void) fprintf(fd, "\n%s:\n\n", gettext("Subcommands"));
for (i = CMD_MIN; i <= CMD_MAX; i++) {
if (cmdtab[i].short_usage == NULL)
continue;
(void) fprintf(fd, "%s\n", cmdtab[i].short_usage);
if (explicit)
(void) fprintf(fd, "\t%s\n\n", long_help(i));
}
if (!explicit)
(void) fputs("\n", fd);
return (Z_USAGE);
}
static void
sub_usage(char *short_usage, int cmd_num)
{
(void) fprintf(stderr, "%s:\t%s\n", gettext("usage"), short_usage);
(void) fprintf(stderr, "\t%s\n", long_help(cmd_num));
}
/*
* zperror() is like perror(3c) except that this also prints the executable
* name at the start of the message, and takes a boolean indicating whether
* to call libc'c strerror() or that from libzonecfg.
*/
void
zperror(const char *str, boolean_t zonecfg_error)
{
(void) fprintf(stderr, "%s: %s: %s\n", execname, str,
zonecfg_error ? zonecfg_strerror(errno) : strerror(errno));
}
/*
* zperror2() is very similar to zperror() above, except it also prints a
* supplied zone name after the executable.
*
* All current consumers of this function want libzonecfg's strerror() rather
* than libc's; if this ever changes, this function can be made more generic
* like zperror() above.
*/
void
zperror2(const char *zone, const char *str)
{
(void) fprintf(stderr, "%s: %s: %s: %s\n", execname, zone, str,
zonecfg_strerror(errno));
}
/* PRINTFLIKE1 */
void
zerror(const char *fmt, ...)
{
va_list alist;
va_start(alist, fmt);
(void) fprintf(stderr, "%s: ", execname);
if (target_zone != NULL)
(void) fprintf(stderr, "zone '%s': ", target_zone);
(void) vfprintf(stderr, fmt, alist);
(void) fprintf(stderr, "\n");
va_end(alist);
}
static void *
safe_calloc(size_t nelem, size_t elsize)
{
void *r = calloc(nelem, elsize);
if (r == NULL) {
zerror(gettext("failed to allocate %lu bytes: %s"),
(ulong_t)nelem * elsize, strerror(errno));
exit(Z_ERR);
}
return (r);
}
static void
zone_print(zone_entry_t *zent, boolean_t verbose, boolean_t parsable)
{
static boolean_t firsttime = B_TRUE;
char *ip_type_str;
/* Skip a zone that shutdown while we were collecting data. */
if (zent->zname[0] == '\0')
return;
if (zent->ziptype == ZS_EXCLUSIVE)
ip_type_str = "excl";
else
ip_type_str = "shared";
assert(!(verbose && parsable));
if (firsttime && verbose) {
firsttime = B_FALSE;
(void) printf("%*s %-16s %-10s %-30s %-8s %-6s\n",
ZONEID_WIDTH, "ID", "NAME", "STATUS", "PATH", "BRAND",
"IP");
}
if (!verbose) {
char *cp, *clim;
if (!parsable) {
(void) printf("%s\n", zent->zname);
return;
}
if (zent->zid == ZONE_ID_UNDEFINED)
(void) printf("-");
else
(void) printf("%lu", zent->zid);
(void) printf(":%s:%s:", zent->zname, zent->zstate_str);
cp = zent->zroot;
while ((clim = strchr(cp, ':')) != NULL) {
(void) printf("%.*s\\:", clim - cp, cp);
cp = clim + 1;
}
(void) printf("%s:%s:%s:%s\n", cp, zent->zuuid, zent->zbrand,
ip_type_str);
return;
}
if (zent->zstate_str != NULL) {
if (zent->zid == ZONE_ID_UNDEFINED)
(void) printf("%*s", ZONEID_WIDTH, "-");
else
(void) printf("%*lu", ZONEID_WIDTH, zent->zid);
(void) printf(" %-16s %-10s %-30s %-8s %-6s\n", zent->zname,
zent->zstate_str, zent->zroot, zent->zbrand, ip_type_str);
}
}
static int
lookup_zone_info(const char *zone_name, zoneid_t zid, zone_entry_t *zent)
{
char root[MAXPATHLEN], *cp;
int err;
uuid_t uuid;
zone_dochandle_t handle;
(void) strlcpy(zent->zname, zone_name, sizeof (zent->zname));
(void) strlcpy(zent->zroot, "???", sizeof (zent->zroot));
(void) strlcpy(zent->zbrand, "???", sizeof (zent->zbrand));
zent->zstate_str = "???";
zent->zid = zid;
if (zonecfg_get_uuid(zone_name, uuid) == Z_OK &&
!uuid_is_null(uuid))
uuid_unparse(uuid, zent->zuuid);
else
zent->zuuid[0] = '\0';
/*
* For labeled zones which query the zone path of lower-level
* zones, the path needs to be adjusted to drop the final
* "/root" component. This adjusted path is then useful
* for reading down any exported directories from the
* lower-level zone.
*/
if (is_system_labeled() && zent->zid != ZONE_ID_UNDEFINED) {
if (zone_getattr(zent->zid, ZONE_ATTR_ROOT, zent->zroot,
sizeof (zent->zroot)) == -1) {
zperror2(zent->zname,
gettext("could not get zone path."));
return (Z_ERR);
}
cp = zent->zroot + strlen(zent->zroot) - 5;
if (cp > zent->zroot && strcmp(cp, "/root") == 0)
*cp = 0;
} else {
if ((err = zone_get_zonepath(zent->zname, root,
sizeof (root))) != Z_OK) {
errno = err;
zperror2(zent->zname,
gettext("could not get zone path."));
return (Z_ERR);
}
(void) strlcpy(zent->zroot, root, sizeof (zent->zroot));
}
if ((err = zone_get_state(zent->zname, &zent->zstate_num)) != Z_OK) {
errno = err;
zperror2(zent->zname, gettext("could not get state"));
return (Z_ERR);
}
zent->zstate_str = zone_state_str(zent->zstate_num);
/*
* A zone's brand is only available in the .xml file describing it,
* which is only visible to the global zone. This causes
* zone_get_brand() to fail when called from within a non-global
* zone. Fortunately we only do this on labeled systems, where we
* know all zones are native.
*/
if (getzoneid() != GLOBAL_ZONEID) {
assert(is_system_labeled() != 0);
(void) strlcpy(zent->zbrand, default_brand,
sizeof (zent->zbrand));
} else if (zone_get_brand(zent->zname, zent->zbrand,
sizeof (zent->zbrand)) != Z_OK) {
zperror2(zent->zname, gettext("could not get brand name"));
return (Z_ERR);
}
/*
* Get ip type of the zone.
* Note for global zone, ZS_SHARED is set always.
*/
if (zid == GLOBAL_ZONEID) {
zent->ziptype = ZS_SHARED;
return (Z_OK);
}
/*
* There is a race condition where the zone could boot while
* we're walking the index file. In this case the zone state
* could be seen as running from the call above, but the zoneid
* would be undefined.
*
* There is also a race condition where the zone could shutdown after
* we got its running state above. This is also not an error and
* we fall back to getting the ziptype from the zone configuration.
*/
if (zent->zstate_num == ZONE_STATE_RUNNING &&
zid != ZONE_ID_UNDEFINED) {
ushort_t flags;
if (zone_getattr(zid, ZONE_ATTR_FLAGS, &flags,
sizeof (flags)) >= 0) {
if (flags & ZF_NET_EXCL)
zent->ziptype = ZS_EXCLUSIVE;
else
zent->ziptype = ZS_SHARED;
return (Z_OK);
}
}
if ((handle = zonecfg_init_handle()) == NULL) {
zperror2(zent->zname, gettext("could not init handle"));
return (Z_ERR);
}
if ((err = zonecfg_get_handle(zent->zname, handle)) != Z_OK) {
zperror2(zent->zname, gettext("could not get handle"));
zonecfg_fini_handle(handle);
return (Z_ERR);
}
if ((err = zonecfg_get_iptype(handle, &zent->ziptype)) != Z_OK) {
zperror2(zent->zname, gettext("could not get ip-type"));
zonecfg_fini_handle(handle);
return (Z_ERR);
}
zonecfg_fini_handle(handle);
return (Z_OK);
}
/*
* fetch_zents() calls zone_list(2) to find out how many zones are running
* (which is stored in the global nzents), then calls zone_list(2) again
* to fetch the list of running zones (stored in the global zents). This
* function may be called multiple times, so if zents is already set, we
* return immediately to save work.
*
* Note that the data about running zones can change while this function
* is running, so its possible that the list of zones will have empty slots
* at the end.
*/
static int
fetch_zents(void)
{
zoneid_t *zids = NULL;
uint_t nzents_saved;
int i, retv;
FILE *fp;
boolean_t inaltroot;
zone_entry_t *zentp;
if (nzents > 0)
return (Z_OK);
if (zone_list(NULL, &nzents) != 0) {
zperror(gettext("failed to get zoneid list"), B_FALSE);
return (Z_ERR);
}
again:
if (nzents == 0)
return (Z_OK);
zids = safe_calloc(nzents, sizeof (zoneid_t));
nzents_saved = nzents;
if (zone_list(zids, &nzents) != 0) {
zperror(gettext("failed to get zone list"), B_FALSE);
free(zids);
return (Z_ERR);
}
if (nzents != nzents_saved) {
/* list changed, try again */
free(zids);
goto again;
}
zents = safe_calloc(nzents, sizeof (zone_entry_t));
inaltroot = zonecfg_in_alt_root();
if (inaltroot)
fp = zonecfg_open_scratch("", B_FALSE);
else
fp = NULL;
zentp = zents;
retv = Z_OK;
for (i = 0; i < nzents; i++) {
char name[ZONENAME_MAX];
char altname[ZONENAME_MAX];
if (getzonenamebyid(zids[i], name, sizeof (name)) < 0) {
/*
* There is a race condition where the zone may have
* shutdown since we retrieved the number of running
* zones above. This is not an error, there will be
* an empty slot at the end of the list.
*/
continue;
}
if (zonecfg_is_scratch(name)) {
/* Ignore scratch zones by default */
if (!inaltroot)
continue;
if (fp == NULL ||
zonecfg_reverse_scratch(fp, name, altname,
sizeof (altname), NULL, 0) == -1) {
zerror(gettext("could not resolve scratch "
"zone %s"), name);
retv = Z_ERR;
continue;
}
(void) strcpy(name, altname);
} else {
/* Ignore non-scratch when in an alternate root */
if (inaltroot && strcmp(name, GLOBAL_ZONENAME) != 0)
continue;
}
if (lookup_zone_info(name, zids[i], zentp) != Z_OK) {
/*
* There is a race condition where the zone may have
* shutdown since we retrieved the number of running
* zones above. This is not an error, there will be
* an empty slot at the end of the list.
*/
continue;
}
zentp++;
}
nzents = zentp - zents;
if (fp != NULL)
zonecfg_close_scratch(fp);
free(zids);
return (retv);
}
static int
zone_print_list(zone_state_t min_state, boolean_t verbose, boolean_t parsable)
{
int i;
zone_entry_t zent;
FILE *cookie;
char *name;
/*
* First get the list of running zones from the kernel and print them.
* If that is all we need, then return.
*/
if ((i = fetch_zents()) != Z_OK) {
/*
* No need for error messages; fetch_zents() has already taken
* care of this.
*/
return (i);
}
for (i = 0; i < nzents; i++)
zone_print(&zents[i], verbose, parsable);
if (min_state >= ZONE_STATE_RUNNING)
return (Z_OK);
/*
* Next, get the full list of zones from the configuration, skipping
* any we have already printed.
*/
cookie = setzoneent();
while ((name = getzoneent(cookie)) != NULL) {
for (i = 0; i < nzents; i++) {
if (strcmp(zents[i].zname, name) == 0)
break;
}
if (i < nzents) {
free(name);
continue;
}
if (lookup_zone_info(name, ZONE_ID_UNDEFINED, &zent) != Z_OK) {
free(name);
continue;
}
free(name);
if (zent.zstate_num >= min_state)
zone_print(&zent, verbose, parsable);
}
endzoneent(cookie);
return (Z_OK);
}
/*
* Retrieve a zone entry by name. Returns NULL if no such zone exists.
*/
static zone_entry_t *
lookup_running_zone(const char *str)
{
int i;
if (fetch_zents() != Z_OK)
return (NULL);
for (i = 0; i < nzents; i++) {
if (strcmp(str, zents[i].zname) == 0)
return (&zents[i]);
}
return (NULL);
}
/*
* Check a bit in a mode_t: if on is B_TRUE, that bit should be on; if
* B_FALSE, it should be off. Return B_TRUE if the mode is bad (incorrect).
*/
static boolean_t
bad_mode_bit(mode_t mode, mode_t bit, boolean_t on, char *file)
{
char *str;
assert(bit == S_IRUSR || bit == S_IWUSR || bit == S_IXUSR ||
bit == S_IRGRP || bit == S_IWGRP || bit == S_IXGRP ||
bit == S_IROTH || bit == S_IWOTH || bit == S_IXOTH);
/*
* TRANSLATION_NOTE
* The strings below will be used as part of a larger message,
* either:
* (file name) must be (owner|group|world) (read|writ|execut)able
* or
* (file name) must not be (owner|group|world) (read|writ|execut)able
*/
switch (bit) {
case S_IRUSR:
str = gettext("owner readable");
break;
case S_IWUSR:
str = gettext("owner writable");
break;
case S_IXUSR:
str = gettext("owner executable");
break;
case S_IRGRP:
str = gettext("group readable");
break;
case S_IWGRP:
str = gettext("group writable");
break;
case S_IXGRP:
str = gettext("group executable");
break;
case S_IROTH:
str = gettext("world readable");
break;
case S_IWOTH:
str = gettext("world writable");
break;
case S_IXOTH:
str = gettext("world executable");
break;
}
if ((mode & bit) == (on ? 0 : bit)) {
/*
* TRANSLATION_NOTE
* The first parameter below is a file name; the second
* is one of the "(owner|group|world) (read|writ|execut)able"
* strings from above.
*/
/*
* The code below could be simplified but not in a way
* that would easily translate to non-English locales.
*/
if (on) {
(void) fprintf(stderr, gettext("%s must be %s.\n"),
file, str);
} else {
(void) fprintf(stderr, gettext("%s must not be %s.\n"),
file, str);
}
return (B_TRUE);
}
return (B_FALSE);
}
/*
* We want to make sure that no zone has its zone path as a child node
* (in the directory sense) of any other. We do that by comparing this
* zone's path to the path of all other (non-global) zones. The comparison
* in each case is simple: add '/' to the end of the path, then do a
* strncmp() of the two paths, using the length of the shorter one.
*/
static int
crosscheck_zonepaths(char *path)
{
char rpath[MAXPATHLEN]; /* resolved path */
char path_copy[MAXPATHLEN]; /* copy of original path */
char rpath_copy[MAXPATHLEN]; /* copy of original rpath */
struct zoneent *ze;
int res, err;
FILE *cookie;
cookie = setzoneent();
while ((ze = getzoneent_private(cookie)) != NULL) {
/* Skip zones which are not installed. */
if (ze->zone_state < ZONE_STATE_INSTALLED) {
free(ze);
continue;
}
/* Skip the global zone and the current target zone. */
if (strcmp(ze->zone_name, GLOBAL_ZONENAME) == 0 ||
strcmp(ze->zone_name, target_zone) == 0) {
free(ze);
continue;
}
if (strlen(ze->zone_path) == 0) {
/* old index file without path, fall back */
if ((err = zone_get_zonepath(ze->zone_name,
ze->zone_path, sizeof (ze->zone_path))) != Z_OK) {
errno = err;
zperror2(ze->zone_name,
gettext("could not get zone path"));
free(ze);
continue;
}
}
(void) snprintf(path_copy, sizeof (path_copy), "%s%s",
zonecfg_get_root(), ze->zone_path);
res = resolvepath(path_copy, rpath, sizeof (rpath));
if (res == -1) {
if (errno != ENOENT) {
zperror(path_copy, B_FALSE);
free(ze);
return (Z_ERR);
}
(void) printf(gettext("WARNING: zone %s is installed, "
"but its %s %s does not exist.\n"), ze->zone_name,
"zonepath", path_copy);
free(ze);
continue;
}
rpath[res] = '\0';
(void) snprintf(path_copy, sizeof (path_copy), "%s/", path);
(void) snprintf(rpath_copy, sizeof (rpath_copy), "%s/", rpath);
if (strncmp(path_copy, rpath_copy,
min(strlen(path_copy), strlen(rpath_copy))) == 0) {
/*
* TRANSLATION_NOTE
* zonepath is a literal that should not be translated.
*/
(void) fprintf(stderr, gettext("%s zonepath (%s) and "
"%s zonepath (%s) overlap.\n"),
target_zone, path, ze->zone_name, rpath);
free(ze);
return (Z_ERR);
}
free(ze);
}
endzoneent(cookie);
return (Z_OK);
}
static int
validate_zonepath(char *path, int cmd_num)
{
int res; /* result of last library/system call */
boolean_t err = B_FALSE; /* have we run into an error? */
struct stat stbuf;
struct statvfs64 vfsbuf;
char rpath[MAXPATHLEN]; /* resolved path */
char ppath[MAXPATHLEN]; /* parent path */
char rppath[MAXPATHLEN]; /* resolved parent path */
char rootpath[MAXPATHLEN]; /* root path */
zone_state_t state;
if (path[0] != '/') {
(void) fprintf(stderr,
gettext("%s is not an absolute path.\n"), path);
return (Z_ERR);
}
if ((res = resolvepath(path, rpath, sizeof (rpath))) == -1) {
if ((errno != ENOENT) ||
(cmd_num != CMD_VERIFY && cmd_num != CMD_INSTALL &&
cmd_num != CMD_CLONE && cmd_num != CMD_MOVE)) {
zperror(path, B_FALSE);
return (Z_ERR);
}
if (cmd_num == CMD_VERIFY) {
/*
* TRANSLATION_NOTE
* zoneadm is a literal that should not be translated.
*/
(void) fprintf(stderr, gettext("WARNING: %s does not "
"exist, so it could not be verified.\nWhen "
"'zoneadm %s' is run, '%s' will try to create\n%s, "
"and '%s' will be tried again,\nbut the '%s' may "
"fail if:\nthe parent directory of %s is group- or "
"other-writable\nor\n%s overlaps with any other "
"installed zones.\n"), path,
cmd_to_str(CMD_INSTALL), cmd_to_str(CMD_INSTALL),
path, cmd_to_str(CMD_VERIFY),
cmd_to_str(CMD_VERIFY), path, path);
return (Z_OK);
}
/*
* The zonepath is supposed to be mode 700 but its
* parent(s) 755. So use 755 on the mkdirp() then
* chmod() the zonepath itself to 700.
*/
if (mkdirp(path, DEFAULT_DIR_MODE) < 0) {
zperror(path, B_FALSE);
return (Z_ERR);
}
/*
* If the chmod() fails, report the error, but might
* as well continue the verify procedure.
*/
if (chmod(path, S_IRWXU) != 0)
zperror(path, B_FALSE);
/*
* Since the mkdir() succeeded, we should not have to
* worry about a subsequent ENOENT, thus this should
* only recurse once.
*/
return (validate_zonepath(path, cmd_num));
}
rpath[res] = '\0';
if (strcmp(path, rpath) != 0) {
errno = Z_RESOLVED_PATH;
zperror(path, B_TRUE);
return (Z_ERR);
}
if ((res = stat(rpath, &stbuf)) != 0) {
zperror(rpath, B_FALSE);
return (Z_ERR);
}
if (!S_ISDIR(stbuf.st_mode)) {
(void) fprintf(stderr, gettext("%s is not a directory.\n"),
rpath);
return (Z_ERR);
}
if (strcmp(stbuf.st_fstype, MNTTYPE_TMPFS) == 0) {
(void) printf(gettext("WARNING: %s is on a temporary "
"file system.\n"), rpath);
}
if (crosscheck_zonepaths(rpath) != Z_OK)
return (Z_ERR);
/*
* Try to collect and report as many minor errors as possible
* before returning, so the user can learn everything that needs
* to be fixed up front.
*/
if (stbuf.st_uid != 0) {
(void) fprintf(stderr, gettext("%s is not owned by root.\n"),
rpath);
err = B_TRUE;
}
err |= bad_mode_bit(stbuf.st_mode, S_IRUSR, B_TRUE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IWUSR, B_TRUE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IXUSR, B_TRUE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IRGRP, B_FALSE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IWGRP, B_FALSE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IXGRP, B_FALSE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IROTH, B_FALSE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IWOTH, B_FALSE, rpath);
err |= bad_mode_bit(stbuf.st_mode, S_IXOTH, B_FALSE, rpath);
(void) snprintf(ppath, sizeof (ppath), "%s/..", path);
if ((res = resolvepath(ppath, rppath, sizeof (rppath))) == -1) {
zperror(ppath, B_FALSE);
return (Z_ERR);
}
rppath[res] = '\0';
if ((res = stat(rppath, &stbuf)) != 0) {
zperror(rppath, B_FALSE);
return (Z_ERR);
}
/* theoretically impossible */
if (!S_ISDIR(stbuf.st_mode)) {
(void) fprintf(stderr, gettext("%s is not a directory.\n"),
rppath);
return (Z_ERR);
}
if (stbuf.st_uid != 0) {
(void) fprintf(stderr, gettext("%s is not owned by root.\n"),
rppath);
err = B_TRUE;
}
err |= bad_mode_bit(stbuf.st_mode, S_IRUSR, B_TRUE, rppath);
err |= bad_mode_bit(stbuf.st_mode, S_IWUSR, B_TRUE, rppath);
err |= bad_mode_bit(stbuf.st_mode, S_IXUSR, B_TRUE, rppath);
err |= bad_mode_bit(stbuf.st_mode, S_IWGRP, B_FALSE, rppath);
err |= bad_mode_bit(stbuf.st_mode, S_IWOTH, B_FALSE, rppath);
if (strcmp(rpath, rppath) == 0) {
(void) fprintf(stderr, gettext("%s is its own parent.\n"),
rppath);
err = B_TRUE;
}
if (statvfs64(rpath, &vfsbuf) != 0) {
zperror(rpath, B_FALSE);
return (Z_ERR);
}
if (strcmp(vfsbuf.f_basetype, MNTTYPE_NFS) == 0) {
/*
* TRANSLATION_NOTE
* Zonepath and NFS are literals that should not be translated.
*/
(void) fprintf(stderr, gettext("Zonepath %s is on an NFS "
"mounted file system.\n"
"\tA local file system must be used.\n"), rpath);
return (Z_ERR);
}
if (vfsbuf.f_flag & ST_NOSUID) {
/*
* TRANSLATION_NOTE
* Zonepath and nosuid are literals that should not be
* translated.
*/
(void) fprintf(stderr, gettext("Zonepath %s is on a nosuid "
"file system.\n"), rpath);
return (Z_ERR);
}
if ((res = zone_get_state(target_zone, &state)) != Z_OK) {
errno = res;
zperror2(target_zone, gettext("could not get state"));
return (Z_ERR);
}
/*
* The existence of the root path is only bad in the configured state,
* as it is *supposed* to be there at the installed and later states.
* However, the root path is expected to be there if the zone is
* detached.
* State/command mismatches are caught earlier in verify_details().
*/
if (state == ZONE_STATE_CONFIGURED && cmd_num != CMD_ATTACH) {
if (snprintf(rootpath, sizeof (rootpath), "%s/root", rpath) >=
sizeof (rootpath)) {
/*
* TRANSLATION_NOTE
* Zonepath is a literal that should not be translated.
*/
(void) fprintf(stderr,
gettext("Zonepath %s is too long.\n"), rpath);
return (Z_ERR);
}
if ((res = stat(rootpath, &stbuf)) == 0) {
if (zonecfg_detached(rpath)) {
(void) fprintf(stderr,
gettext("Cannot %s detached "
"zone.\nUse attach or remove %s "
"directory.\n"), cmd_to_str(cmd_num),
rpath);
return (Z_ERR);
}
/* Not detached, check if it really looks ok. */
if (!S_ISDIR(stbuf.st_mode)) {
(void) fprintf(stderr, gettext("%s is not a "
"directory.\n"), rootpath);
return (Z_ERR);
}
if (stbuf.st_uid != 0) {
(void) fprintf(stderr, gettext("%s is not "
"owned by root.\n"), rootpath);
return (Z_ERR);
}
if ((stbuf.st_mode & 0777) != 0755) {
(void) fprintf(stderr, gettext("%s mode is not "
"0755.\n"), rootpath);
return (Z_ERR);
}
}
}
return (err ? Z_ERR : Z_OK);
}
static int
invoke_brand_handler(int cmd_num, char *argv[])
{
zone_dochandle_t handle;
int err;
if ((handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(cmd_num), B_TRUE);
return (Z_ERR);
}
if ((err = zonecfg_get_handle(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(cmd_num), B_TRUE);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
if (verify_brand(handle, cmd_num, argv) != Z_OK) {
zonecfg_fini_handle(handle);
return (Z_ERR);
}
zonecfg_fini_handle(handle);
return (Z_OK);
}
static int
ready_func(int argc, char *argv[])
{
zone_cmd_arg_t zarg;
int arg;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot ready zone in alternate root"));
return (Z_ERR);
}
optind = 0;
if ((arg = getopt(argc, argv, "?")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_READY, CMD_READY);
return (optopt == '?' ? Z_OK : Z_USAGE);
default:
sub_usage(SHELP_READY, CMD_READY);
return (Z_USAGE);
}
}
if (argc > optind) {
sub_usage(SHELP_READY, CMD_READY);
return (Z_USAGE);
}
if (sanity_check(target_zone, CMD_READY, B_FALSE, B_FALSE, B_FALSE)
!= Z_OK)
return (Z_ERR);
if (verify_details(CMD_READY, argv) != Z_OK)
return (Z_ERR);
zarg.cmd = Z_READY;
if (zonecfg_call_zoneadmd(target_zone, &zarg, locale, B_TRUE) != 0) {
zerror(gettext("call to %s failed"), "zoneadmd");
return (Z_ERR);
}
return (Z_OK);
}
static int
boot_func(int argc, char *argv[])
{
zone_cmd_arg_t zarg;
boolean_t force = B_FALSE;
int arg;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot boot zone in alternate root"));
return (Z_ERR);
}
zarg.bootbuf[0] = '\0';
/*
* The following getopt processes arguments to zone boot; that
* is to say, the [here] portion of the argument string:
*
* zoneadm -z myzone boot [here] -- -v -m verbose
*
* Where [here] can either be nothing, -? (in which case we bail
* and print usage), -f (a private option to indicate that the
* boot operation should be 'forced'), or -s. Support for -s is
* vestigal and obsolete, but is retained because it was a
* documented interface and there are known consumers including
* admin/install; the proper way to specify boot arguments like -s
* is:
*
* zoneadm -z myzone boot -- -s -v -m verbose.
*/
optind = 0;
while ((arg = getopt(argc, argv, "?fs")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_BOOT, CMD_BOOT);
return (optopt == '?' ? Z_OK : Z_USAGE);
case 's':
(void) strlcpy(zarg.bootbuf, "-s",
sizeof (zarg.bootbuf));
break;
case 'f':
force = B_TRUE;
break;
default:
sub_usage(SHELP_BOOT, CMD_BOOT);
return (Z_USAGE);
}
}
for (; optind < argc; optind++) {
if (strlcat(zarg.bootbuf, argv[optind],
sizeof (zarg.bootbuf)) >= sizeof (zarg.bootbuf)) {
zerror(gettext("Boot argument list too long"));
return (Z_ERR);
}
if (optind < argc - 1)
if (strlcat(zarg.bootbuf, " ", sizeof (zarg.bootbuf)) >=
sizeof (zarg.bootbuf)) {
zerror(gettext("Boot argument list too long"));
return (Z_ERR);
}
}
if (sanity_check(target_zone, CMD_BOOT, B_FALSE, B_FALSE, force)
!= Z_OK)
return (Z_ERR);
if (verify_details(CMD_BOOT, argv) != Z_OK)
return (Z_ERR);
zarg.cmd = force ? Z_FORCEBOOT : Z_BOOT;
if (zonecfg_call_zoneadmd(target_zone, &zarg, locale, B_TRUE) != 0) {
zerror(gettext("call to %s failed"), "zoneadmd");
return (Z_ERR);
}
return (Z_OK);
}
static void
fake_up_local_zone(zoneid_t zid, zone_entry_t *zeptr)
{
ssize_t result;
uuid_t uuid;
FILE *fp;
ushort_t flags;
(void) memset(zeptr, 0, sizeof (*zeptr));
zeptr->zid = zid;
/*
* Since we're looking up our own (non-global) zone name,
* we can be assured that it will succeed.
*/
result = getzonenamebyid(zid, zeptr->zname, sizeof (zeptr->zname));
assert(result >= 0);
if (zonecfg_is_scratch(zeptr->zname) &&
(fp = zonecfg_open_scratch("", B_FALSE)) != NULL) {
(void) zonecfg_reverse_scratch(fp, zeptr->zname, zeptr->zname,
sizeof (zeptr->zname), NULL, 0);
zonecfg_close_scratch(fp);
}
if (is_system_labeled()) {
(void) zone_getattr(zid, ZONE_ATTR_ROOT, zeptr->zroot,
sizeof (zeptr->zroot));
(void) strlcpy(zeptr->zbrand, NATIVE_BRAND_NAME,
sizeof (zeptr->zbrand));
} else {
(void) strlcpy(zeptr->zroot, "/", sizeof (zeptr->zroot));
(void) zone_getattr(zid, ZONE_ATTR_BRAND, zeptr->zbrand,
sizeof (zeptr->zbrand));
}
zeptr->zstate_str = "running";
if (zonecfg_get_uuid(zeptr->zname, uuid) == Z_OK &&
!uuid_is_null(uuid))
uuid_unparse(uuid, zeptr->zuuid);
if (zone_getattr(zid, ZONE_ATTR_FLAGS, &flags, sizeof (flags)) < 0) {
zperror2(zeptr->zname, gettext("could not get zone flags"));
exit(Z_ERR);
}
if (flags & ZF_NET_EXCL)
zeptr->ziptype = ZS_EXCLUSIVE;
else
zeptr->ziptype = ZS_SHARED;
}
static int
list_func(int argc, char *argv[])
{
zone_entry_t *zentp, zent;
int arg, retv;
boolean_t output = B_FALSE, verbose = B_FALSE, parsable = B_FALSE;
zone_state_t min_state = ZONE_STATE_RUNNING;
zoneid_t zone_id = getzoneid();
if (target_zone == NULL) {
/* all zones: default view to running but allow override */
optind = 0;
while ((arg = getopt(argc, argv, "?cipv")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_LIST, CMD_LIST);
return (optopt == '?' ? Z_OK : Z_USAGE);
/*
* The 'i' and 'c' options are not mutually
* exclusive so if 'c' is given, then min_state
* is set to 0 (ZONE_STATE_CONFIGURED) which is
* the lowest possible state. If 'i' is given,
* then min_state is set to be the lowest state
* so far.
*/
case 'c':
min_state = ZONE_STATE_CONFIGURED;
break;
case 'i':
min_state = min(ZONE_STATE_INSTALLED,
min_state);
break;
case 'p':
parsable = B_TRUE;
break;
case 'v':
verbose = B_TRUE;
break;
default:
sub_usage(SHELP_LIST, CMD_LIST);
return (Z_USAGE);
}
}
if (parsable && verbose) {
zerror(gettext("%s -p and -v are mutually exclusive."),
cmd_to_str(CMD_LIST));
return (Z_ERR);
}
if (zone_id == GLOBAL_ZONEID || is_system_labeled()) {
retv = zone_print_list(min_state, verbose, parsable);
} else {
fake_up_local_zone(zone_id, &zent);
retv = Z_OK;
zone_print(&zent, verbose, parsable);
}
return (retv);
}
/*
* Specific target zone: disallow -i/-c suboptions.
*/
optind = 0;
while ((arg = getopt(argc, argv, "?pv")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_LIST, CMD_LIST);
return (optopt == '?' ? Z_OK : Z_USAGE);
case 'p':
parsable = B_TRUE;
break;
case 'v':
verbose = B_TRUE;
break;
default:
sub_usage(SHELP_LIST, CMD_LIST);
return (Z_USAGE);
}
}
if (parsable && verbose) {
zerror(gettext("%s -p and -v are mutually exclusive."),
cmd_to_str(CMD_LIST));
return (Z_ERR);
}
if (argc > optind) {
sub_usage(SHELP_LIST, CMD_LIST);
return (Z_USAGE);
}
if (zone_id != GLOBAL_ZONEID && !is_system_labeled()) {
fake_up_local_zone(zone_id, &zent);
/*
* main() will issue a Z_NO_ZONE error if it cannot get an
* id for target_zone, which in a non-global zone should
* happen for any zone name except `zonename`. Thus we
* assert() that here but don't otherwise check.
*/
assert(strcmp(zent.zname, target_zone) == 0);
zone_print(&zent, verbose, parsable);
output = B_TRUE;
} else if ((zentp = lookup_running_zone(target_zone)) != NULL) {
zone_print(zentp, verbose, parsable);
output = B_TRUE;
} else if (lookup_zone_info(target_zone, ZONE_ID_UNDEFINED,
&zent) == Z_OK) {
zone_print(&zent, verbose, parsable);
output = B_TRUE;
}
/*
* Invoke brand-specific handler. Note that we do this
* only if we're in the global zone, and target_zone is specified
* and it is not the global zone.
*/
if (zone_id == GLOBAL_ZONEID && target_zone != NULL &&
strcmp(target_zone, GLOBAL_ZONENAME) != 0)
if (invoke_brand_handler(CMD_LIST, argv) != Z_OK)
return (Z_ERR);
return (output ? Z_OK : Z_ERR);
}
int
do_subproc(char *cmdbuf)
{
void (*saveint)(int);
void (*saveterm)(int);
void (*savequit)(int);
void (*savehup)(int);
int pid, child, status;
if ((child = vfork()) == 0) {
(void) execl("/bin/sh", "sh", "-c", cmdbuf, (char *)NULL);
}
if (child == -1)
return (-1);
saveint = sigset(SIGINT, SIG_IGN);
saveterm = sigset(SIGTERM, SIG_IGN);
savequit = sigset(SIGQUIT, SIG_IGN);
savehup = sigset(SIGHUP, SIG_IGN);
while ((pid = waitpid(child, &status, 0)) != child && pid != -1)
;
(void) sigset(SIGINT, saveint);
(void) sigset(SIGTERM, saveterm);
(void) sigset(SIGQUIT, savequit);
(void) sigset(SIGHUP, savehup);
return (pid == -1 ? -1 : status);
}
int
subproc_status(const char *cmd, int status, boolean_t verbose_failure)
{
if (WIFEXITED(status)) {
int exit_code = WEXITSTATUS(status);
if ((verbose_failure) && (exit_code != ZONE_SUBPROC_OK))
zerror(gettext("'%s' failed with exit code %d."), cmd,
exit_code);
return (exit_code);
} else if (WIFSIGNALED(status)) {
int signal = WTERMSIG(status);
char sigstr[SIG2STR_MAX];
if (sig2str(signal, sigstr) == 0) {
zerror(gettext("'%s' terminated by signal SIG%s."), cmd,
sigstr);
} else {
zerror(gettext("'%s' terminated by an unknown signal."),
cmd);
}
} else {
zerror(gettext("'%s' failed for unknown reasons."), cmd);
}
/*
* Assume a subprocess that died due to a signal or an unknown error
* should be considered an exit code of ZONE_SUBPROC_FATAL, as the
* user will likely need to do some manual cleanup.
*/
return (ZONE_SUBPROC_FATAL);
}
/*
* Various sanity checks; make sure:
* 1. We're in the global zone.
* 2. The calling user has sufficient privilege.
* 3. The target zone is neither the global zone nor anything starting with
* "SUNW".
* 4a. If we're looking for a 'not running' (i.e., configured or installed)
* zone, the name service knows about it.
* 4b. For some operations which expect a zone not to be running, that it is
* not already running (or ready).
*/
static int
sanity_check(char *zone, int cmd_num, boolean_t running,
boolean_t unsafe_when_running, boolean_t force)
{
zone_entry_t *zent;
priv_set_t *privset;
zone_state_t state, min_state;
char kernzone[ZONENAME_MAX];
FILE *fp;
if (getzoneid() != GLOBAL_ZONEID) {
switch (cmd_num) {
case CMD_HALT:
zerror(gettext("use %s to %s this zone."), "halt(1M)",
cmd_to_str(cmd_num));
break;
case CMD_REBOOT:
zerror(gettext("use %s to %s this zone."),
"reboot(1M)", cmd_to_str(cmd_num));
break;
default:
zerror(gettext("must be in the global zone to %s a "
"zone."), cmd_to_str(cmd_num));
break;
}
return (Z_ERR);
}
if ((privset = priv_allocset()) == NULL) {
zerror(gettext("%s failed"), "priv_allocset");
return (Z_ERR);
}
if (getppriv(PRIV_EFFECTIVE, privset) != 0) {
zerror(gettext("%s failed"), "getppriv");
priv_freeset(privset);
return (Z_ERR);
}
if (priv_isfullset(privset) == B_FALSE) {
zerror(gettext("only a privileged user may %s a zone."),
cmd_to_str(cmd_num));
priv_freeset(privset);
return (Z_ERR);
}
priv_freeset(privset);
if (zone == NULL) {
zerror(gettext("no zone specified"));
return (Z_ERR);
}
if (strcmp(zone, GLOBAL_ZONENAME) == 0) {
zerror(gettext("%s operation is invalid for the global zone."),
cmd_to_str(cmd_num));
return (Z_ERR);
}
if (strncmp(zone, "SUNW", 4) == 0) {
zerror(gettext("%s operation is invalid for zones starting "
"with SUNW."), cmd_to_str(cmd_num));
return (Z_ERR);
}
if (!zonecfg_in_alt_root()) {
zent = lookup_running_zone(zone);
} else if ((fp = zonecfg_open_scratch("", B_FALSE)) == NULL) {
zent = NULL;
} else {
if (zonecfg_find_scratch(fp, zone, zonecfg_get_root(),
kernzone, sizeof (kernzone)) == 0)
zent = lookup_running_zone(kernzone);
else
zent = NULL;
zonecfg_close_scratch(fp);
}
/*
* Look up from the kernel for 'running' zones.
*/
if (running && !force) {
if (zent == NULL) {
zerror(gettext("not running"));
return (Z_ERR);
}
} else {
int err;
if (unsafe_when_running && zent != NULL) {
/* check whether the zone is ready or running */
if ((err = zone_get_state(zent->zname,
&zent->zstate_num)) != Z_OK) {
errno = err;
zperror2(zent->zname,
gettext("could not get state"));
/* can't tell, so hedge */
zent->zstate_str = "ready/running";
} else {
zent->zstate_str =
zone_state_str(zent->zstate_num);
}
zerror(gettext("%s operation is invalid for %s zones."),
cmd_to_str(cmd_num), zent->zstate_str);
return (Z_ERR);
}
if ((err = zone_get_state(zone, &state)) != Z_OK) {
errno = err;
zperror2(zone, gettext("could not get state"));
return (Z_ERR);
}
switch (cmd_num) {
case CMD_UNINSTALL:
if (state == ZONE_STATE_CONFIGURED) {
zerror(gettext("is already in state '%s'."),
zone_state_str(ZONE_STATE_CONFIGURED));
return (Z_ERR);
}
break;
case CMD_ATTACH:
if (state == ZONE_STATE_INSTALLED) {
zerror(gettext("is already %s."),
zone_state_str(ZONE_STATE_INSTALLED));
return (Z_ERR);
} else if (state == ZONE_STATE_INCOMPLETE && !force) {
zerror(gettext("zone is %s; %s required."),
zone_state_str(ZONE_STATE_INCOMPLETE),
cmd_to_str(CMD_UNINSTALL));
return (Z_ERR);
}
break;
case CMD_CLONE:
case CMD_INSTALL:
if (state == ZONE_STATE_INSTALLED) {
zerror(gettext("is already %s."),
zone_state_str(ZONE_STATE_INSTALLED));
return (Z_ERR);
} else if (state == ZONE_STATE_INCOMPLETE) {
zerror(gettext("zone is %s; %s required."),
zone_state_str(ZONE_STATE_INCOMPLETE),
cmd_to_str(CMD_UNINSTALL));
return (Z_ERR);
}
break;
case CMD_DETACH:
case CMD_MOVE:
case CMD_READY:
case CMD_BOOT:
case CMD_MOUNT:
case CMD_MARK:
if ((cmd_num == CMD_BOOT || cmd_num == CMD_MOUNT) &&
force)
min_state = ZONE_STATE_INCOMPLETE;
else if (cmd_num == CMD_MARK)
min_state = ZONE_STATE_CONFIGURED;
else
min_state = ZONE_STATE_INSTALLED;
if (state < min_state) {
zerror(gettext("must be %s before %s."),
zone_state_str(min_state),
cmd_to_str(cmd_num));
return (Z_ERR);
}
break;
case CMD_VERIFY:
if (state == ZONE_STATE_INCOMPLETE) {
zerror(gettext("zone is %s; %s required."),
zone_state_str(ZONE_STATE_INCOMPLETE),
cmd_to_str(CMD_UNINSTALL));
return (Z_ERR);
}
break;
case CMD_UNMOUNT:
if (state != ZONE_STATE_MOUNTED) {
zerror(gettext("must be %s before %s."),
zone_state_str(ZONE_STATE_MOUNTED),
cmd_to_str(cmd_num));
return (Z_ERR);
}
break;
case CMD_SYSBOOT:
if (state != ZONE_STATE_INSTALLED) {
zerror(gettext("%s operation is invalid for %s "
"zones."), cmd_to_str(cmd_num),
zone_state_str(state));
return (Z_ERR);
}
break;
}
}
return (Z_OK);
}
static int
halt_func(int argc, char *argv[])
{
zone_cmd_arg_t zarg;
int arg;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot halt zone in alternate root"));
return (Z_ERR);
}
optind = 0;
if ((arg = getopt(argc, argv, "?")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_HALT, CMD_HALT);
return (optopt == '?' ? Z_OK : Z_USAGE);
default:
sub_usage(SHELP_HALT, CMD_HALT);
return (Z_USAGE);
}
}
if (argc > optind) {
sub_usage(SHELP_HALT, CMD_HALT);
return (Z_USAGE);
}
/*
* zoneadmd should be the one to decide whether or not to proceed,
* so even though it seems that the fourth parameter below should
* perhaps be B_TRUE, it really shouldn't be.
*/
if (sanity_check(target_zone, CMD_HALT, B_FALSE, B_FALSE, B_FALSE)
!= Z_OK)
return (Z_ERR);
/*
* Invoke brand-specific handler.
*/
if (invoke_brand_handler(CMD_HALT, argv) != Z_OK)
return (Z_ERR);
zarg.cmd = Z_HALT;
return ((zonecfg_call_zoneadmd(target_zone, &zarg, locale,
B_TRUE) == 0) ? Z_OK : Z_ERR);
}
static int
reboot_func(int argc, char *argv[])
{
zone_cmd_arg_t zarg;
int arg;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot reboot zone in alternate root"));
return (Z_ERR);
}
optind = 0;
if ((arg = getopt(argc, argv, "?")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_REBOOT, CMD_REBOOT);
return (optopt == '?' ? Z_OK : Z_USAGE);
default:
sub_usage(SHELP_REBOOT, CMD_REBOOT);
return (Z_USAGE);
}
}
zarg.bootbuf[0] = '\0';
for (; optind < argc; optind++) {
if (strlcat(zarg.bootbuf, argv[optind],
sizeof (zarg.bootbuf)) >= sizeof (zarg.bootbuf)) {
zerror(gettext("Boot argument list too long"));
return (Z_ERR);
}
if (optind < argc - 1)
if (strlcat(zarg.bootbuf, " ", sizeof (zarg.bootbuf)) >=
sizeof (zarg.bootbuf)) {
zerror(gettext("Boot argument list too long"));
return (Z_ERR);
}
}
/*
* zoneadmd should be the one to decide whether or not to proceed,
* so even though it seems that the fourth parameter below should
* perhaps be B_TRUE, it really shouldn't be.
*/
if (sanity_check(target_zone, CMD_REBOOT, B_TRUE, B_FALSE, B_FALSE)
!= Z_OK)
return (Z_ERR);
if (verify_details(CMD_REBOOT, argv) != Z_OK)
return (Z_ERR);
zarg.cmd = Z_REBOOT;
return ((zonecfg_call_zoneadmd(target_zone, &zarg, locale, B_TRUE) == 0)
? Z_OK : Z_ERR);
}
static int
get_hook(brand_handle_t bh, char *cmd, size_t len, int (*bp)(brand_handle_t,
const char *, const char *, char *, size_t), char *zonename, char *zonepath)
{
if (strlcpy(cmd, EXEC_PREFIX, len) >= len)
return (Z_ERR);
if (bp(bh, zonename, zonepath, cmd + EXEC_LEN, len - EXEC_LEN) != 0)
return (Z_ERR);
if (strlen(cmd) <= EXEC_LEN)
cmd[0] = '\0';
return (Z_OK);
}
static int
verify_brand(zone_dochandle_t handle, int cmd_num, char *argv[])
{
char cmdbuf[MAXPATHLEN];
int err;
char zonepath[MAXPATHLEN];
brand_handle_t bh = NULL;
int status, i;
/*
* Fetch the verify command from the brand configuration.
* "exec" the command so that the returned status is that of
* the command and not the shell.
*/
if (handle == NULL) {
(void) strlcpy(zonepath, "-", sizeof (zonepath));
} else if ((err = zonecfg_get_zonepath(handle, zonepath,
sizeof (zonepath))) != Z_OK) {
errno = err;
zperror(cmd_to_str(cmd_num), B_TRUE);
return (Z_ERR);
}
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
return (Z_ERR);
}
/*
* If the brand has its own verification routine, execute it now.
* The verification routine validates the intended zoneadm
* operation for the specific brand. The zoneadm subcommand and
* all its arguments are passed to the routine.
*/
err = get_hook(bh, cmdbuf, sizeof (cmdbuf), brand_get_verify_adm,
target_zone, zonepath);
brand_close(bh);
if (err != Z_OK)
return (Z_BRAND_ERROR);
if (cmdbuf[0] == '\0')
return (Z_OK);
if (strlcat(cmdbuf, cmd_to_str(cmd_num),
sizeof (cmdbuf)) >= sizeof (cmdbuf))
return (Z_ERR);
/* Build the argv string */
i = 0;
while (argv[i] != NULL) {
if ((strlcat(cmdbuf, " ",
sizeof (cmdbuf)) >= sizeof (cmdbuf)) ||
(strlcat(cmdbuf, argv[i++],
sizeof (cmdbuf)) >= sizeof (cmdbuf)))
return (Z_ERR);
}
status = do_subproc(cmdbuf);
err = subproc_status(gettext("brand-specific verification"),
status, B_FALSE);
return ((err == ZONE_SUBPROC_OK) ? Z_OK : Z_BRAND_ERROR);
}
static int
verify_rctls(zone_dochandle_t handle)
{
struct zone_rctltab rctltab;
size_t rbs = rctlblk_size();
rctlblk_t *rctlblk;
int error = Z_INVAL;
if ((rctlblk = malloc(rbs)) == NULL) {
zerror(gettext("failed to allocate %lu bytes: %s"), rbs,
strerror(errno));
return (Z_NOMEM);
}
if (zonecfg_setrctlent(handle) != Z_OK) {
zerror(gettext("zonecfg_setrctlent failed"));
free(rctlblk);
return (error);
}
rctltab.zone_rctl_valptr = NULL;
while (zonecfg_getrctlent(handle, &rctltab) == Z_OK) {
struct zone_rctlvaltab *rctlval;
const char *name = rctltab.zone_rctl_name;
if (!zonecfg_is_rctl(name)) {
zerror(gettext("WARNING: Ignoring unrecognized rctl "
"'%s'."), name);
zonecfg_free_rctl_value_list(rctltab.zone_rctl_valptr);
rctltab.zone_rctl_valptr = NULL;
continue;
}
for (rctlval = rctltab.zone_rctl_valptr; rctlval != NULL;
rctlval = rctlval->zone_rctlval_next) {
if (zonecfg_construct_rctlblk(rctlval, rctlblk)
!= Z_OK) {
zerror(gettext("invalid rctl value: "
"(priv=%s,limit=%s,action%s)"),
rctlval->zone_rctlval_priv,
rctlval->zone_rctlval_limit,
rctlval->zone_rctlval_action);
goto out;
}
if (!zonecfg_valid_rctl(name, rctlblk)) {
zerror(gettext("(priv=%s,limit=%s,action=%s) "
"is not a valid value for rctl '%s'"),
rctlval->zone_rctlval_priv,
rctlval->zone_rctlval_limit,
rctlval->zone_rctlval_action,
name);
goto out;
}
}
zonecfg_free_rctl_value_list(rctltab.zone_rctl_valptr);
}
rctltab.zone_rctl_valptr = NULL;
error = Z_OK;
out:
zonecfg_free_rctl_value_list(rctltab.zone_rctl_valptr);
(void) zonecfg_endrctlent(handle);
free(rctlblk);
return (error);
}
static int
verify_pool(zone_dochandle_t handle)
{
char poolname[MAXPATHLEN];
pool_conf_t *poolconf;
pool_t *pool;
int status;
int error;
/*
* This ends up being very similar to the check done in zoneadmd.
*/
error = zonecfg_get_pool(handle, poolname, sizeof (poolname));
if (error == Z_NO_ENTRY || (error == Z_OK && strlen(poolname) == 0)) {
/*
* No pool specified.
*/
return (0);
}
if (error != Z_OK) {
zperror(gettext("Unable to retrieve pool name from "
"configuration"), B_TRUE);
return (error);
}
/*
* Don't do anything if pools aren't enabled.
*/
if (pool_get_status(&status) != PO_SUCCESS || status != POOL_ENABLED) {
zerror(gettext("WARNING: pools facility not active; "
"zone will not be bound to pool '%s'."), poolname);
return (Z_OK);
}
/*
* Try to provide a sane error message if the requested pool doesn't
* exist. It isn't clear that pools-related failures should
* necessarily translate to a failure to verify the zone configuration,
* hence they are not considered errors.
*/
if ((poolconf = pool_conf_alloc()) == NULL) {
zerror(gettext("WARNING: pool_conf_alloc failed; "
"using default pool"));
return (Z_OK);
}
if (pool_conf_open(poolconf, pool_dynamic_location(), PO_RDONLY) !=
PO_SUCCESS) {
zerror(gettext("WARNING: pool_conf_open failed; "
"using default pool"));
pool_conf_free(poolconf);
return (Z_OK);
}
pool = pool_get_pool(poolconf, poolname);
(void) pool_conf_close(poolconf);
pool_conf_free(poolconf);
if (pool == NULL) {
zerror(gettext("WARNING: pool '%s' not found. "
"using default pool"), poolname);
}
return (Z_OK);
}
static int
verify_ipd(zone_dochandle_t handle)
{
int return_code = Z_OK;
struct zone_fstab fstab;
struct stat st;
char specdir[MAXPATHLEN];
if (zonecfg_setipdent(handle) != Z_OK) {
/*
* TRANSLATION_NOTE
* inherit-pkg-dirs is a literal that should not be translated.
*/
(void) fprintf(stderr, gettext("could not verify "
"inherit-pkg-dirs: unable to enumerate mounts\n"));
return (Z_ERR);
}
while (zonecfg_getipdent(handle, &fstab) == Z_OK) {
/*
* Verify fs_dir exists.
*/
(void) snprintf(specdir, sizeof (specdir), "%s%s",
zonecfg_get_root(), fstab.zone_fs_dir);
if (stat(specdir, &st) != 0) {
/*
* TRANSLATION_NOTE
* inherit-pkg-dir is a literal that should not be
* translated.
*/
(void) fprintf(stderr, gettext("could not verify "
"inherit-pkg-dir %s: %s\n"),
fstab.zone_fs_dir, strerror(errno));
return_code = Z_ERR;
}
if (strcmp(st.st_fstype, MNTTYPE_NFS) == 0) {
/*
* TRANSLATION_NOTE
* inherit-pkg-dir and NFS are literals that should
* not be translated.
*/
(void) fprintf(stderr, gettext("cannot verify "
"inherit-pkg-dir %s: NFS mounted file system.\n"
"\tA local file system must be used.\n"),
fstab.zone_fs_dir);
return_code = Z_ERR;
}
}
(void) zonecfg_endipdent(handle);
return (return_code);
}
/*
* Verify that the special device/file system exists and is valid.
*/
static int
verify_fs_special(struct zone_fstab *fstab)
{
struct stat64 st;
/*
* This validation is really intended for standard zone administration.
* If we are in a mini-root or some other upgrade situation where
* we are using the scratch zone, just by-pass this.
*/
if (zonecfg_in_alt_root())
return (Z_OK);
if (strcmp(fstab->zone_fs_type, MNTTYPE_ZFS) == 0)
return (verify_fs_zfs(fstab));
if (stat64(fstab->zone_fs_special, &st) != 0) {
(void) fprintf(stderr, gettext("could not verify fs "
"%s: could not access %s: %s\n"), fstab->zone_fs_dir,
fstab->zone_fs_special, strerror(errno));
return (Z_ERR);
}
if (strcmp(st.st_fstype, MNTTYPE_NFS) == 0) {
/*
* TRANSLATION_NOTE
* fs and NFS are literals that should
* not be translated.
*/
(void) fprintf(stderr, gettext("cannot verify "
"fs %s: NFS mounted file system.\n"
"\tA local file system must be used.\n"),
fstab->zone_fs_special);
return (Z_ERR);
}
return (Z_OK);
}
static int
isregfile(const char *path)
{
struct stat64 st;
if (stat64(path, &st) == -1)
return (-1);
return (S_ISREG(st.st_mode));
}
static int
verify_filesystems(zone_dochandle_t handle)
{
int return_code = Z_OK;
struct zone_fstab fstab;
char cmdbuf[MAXPATHLEN];
struct stat st;
/*
* No need to verify inherit-pkg-dir fs types, as their type is
* implicitly lofs, which is known. Therefore, the types are only
* verified for regular file systems below.
*
* Since the actual mount point is not known until the dependent mounts
* are performed, we don't attempt any path validation here: that will
* happen later when zoneadmd actually does the mounts.
*/
if (zonecfg_setfsent(handle) != Z_OK) {
(void) fprintf(stderr, gettext("could not verify file systems: "
"unable to enumerate mounts\n"));
return (Z_ERR);
}
while (zonecfg_getfsent(handle, &fstab) == Z_OK) {
if (!zonecfg_valid_fs_type(fstab.zone_fs_type)) {
(void) fprintf(stderr, gettext("cannot verify fs %s: "
"type %s is not allowed.\n"), fstab.zone_fs_dir,
fstab.zone_fs_type);
return_code = Z_ERR;
goto next_fs;
}
/*
* Verify /usr/lib/fs/<fstype>/mount exists.
*/
if (snprintf(cmdbuf, sizeof (cmdbuf), "/usr/lib/fs/%s/mount",
fstab.zone_fs_type) > sizeof (cmdbuf)) {
(void) fprintf(stderr, gettext("cannot verify fs %s: "
"type %s is too long.\n"), fstab.zone_fs_dir,
fstab.zone_fs_type);
return_code = Z_ERR;
goto next_fs;
}
if (stat(cmdbuf, &st) != 0) {
(void) fprintf(stderr, gettext("could not verify fs "
"%s: could not access %s: %s\n"), fstab.zone_fs_dir,
cmdbuf, strerror(errno));
return_code = Z_ERR;
goto next_fs;
}
if (!S_ISREG(st.st_mode)) {
(void) fprintf(stderr, gettext("could not verify fs "
"%s: %s is not a regular file\n"),
fstab.zone_fs_dir, cmdbuf);
return_code = Z_ERR;
goto next_fs;
}
/*
* If zone_fs_raw is set, verify that there's an fsck
* binary for it. If zone_fs_raw is not set, and it's
* not a regular file (lofi mount), and there's an fsck
* binary for it, complain.
*/
if (snprintf(cmdbuf, sizeof (cmdbuf), "/usr/lib/fs/%s/fsck",
fstab.zone_fs_type) > sizeof (cmdbuf)) {
(void) fprintf(stderr, gettext("cannot verify fs %s: "
"type %s is too long.\n"), fstab.zone_fs_dir,
fstab.zone_fs_type);
return_code = Z_ERR;
goto next_fs;
}
if (fstab.zone_fs_raw[0] != '\0' &&
(stat(cmdbuf, &st) != 0 || !S_ISREG(st.st_mode))) {
(void) fprintf(stderr, gettext("cannot verify fs %s: "
"'raw' device specified but "
"no fsck executable exists for %s\n"),
fstab.zone_fs_dir, fstab.zone_fs_type);
return_code = Z_ERR;
goto next_fs;
} else if (fstab.zone_fs_raw[0] == '\0' &&
stat(cmdbuf, &st) == 0 &&
isregfile(fstab.zone_fs_special) != 1) {
(void) fprintf(stderr, gettext("could not verify fs "
"%s: must specify 'raw' device for %s "
"file systems\n"),
fstab.zone_fs_dir, fstab.zone_fs_type);
return_code = Z_ERR;
goto next_fs;
}
/* Verify fs_special. */
if ((return_code = verify_fs_special(&fstab)) != Z_OK)
goto next_fs;
/* Verify fs_raw. */
if (fstab.zone_fs_raw[0] != '\0' &&
stat(fstab.zone_fs_raw, &st) != 0) {
/*
* TRANSLATION_NOTE
* fs is a literal that should not be translated.
*/
(void) fprintf(stderr, gettext("could not verify fs "
"%s: could not access %s: %s\n"), fstab.zone_fs_dir,
fstab.zone_fs_raw, strerror(errno));
return_code = Z_ERR;
goto next_fs;
}
next_fs:
zonecfg_free_fs_option_list(fstab.zone_fs_options);
}
(void) zonecfg_endfsent(handle);
return (return_code);
}
static int
verify_limitpriv(zone_dochandle_t handle)
{
char *privname = NULL;
int err;
priv_set_t *privs;
if ((privs = priv_allocset()) == NULL) {
zperror(gettext("failed to allocate privilege set"), B_FALSE);
return (Z_NOMEM);
}
err = zonecfg_get_privset(handle, privs, &privname);
switch (err) {
case Z_OK:
break;
case Z_PRIV_PROHIBITED:
(void) fprintf(stderr, gettext("privilege \"%s\" is not "
"permitted within the zone's privilege set\n"), privname);
break;
case Z_PRIV_REQUIRED:
(void) fprintf(stderr, gettext("required privilege \"%s\" is "
"missing from the zone's privilege set\n"), privname);
break;
case Z_PRIV_UNKNOWN:
(void) fprintf(stderr, gettext("unknown privilege \"%s\" "
"specified in the zone's privilege set\n"), privname);
break;
default:
zperror(
gettext("failed to determine the zone's privilege set"),
B_TRUE);
break;
}
free(privname);
priv_freeset(privs);
return (err);
}
static void
free_local_netifs(int if_cnt, struct net_if **if_list)
{
int i;
for (i = 0; i < if_cnt; i++) {
free(if_list[i]->name);
free(if_list[i]);
}
free(if_list);
}
/*
* Get a list of the network interfaces, along with their address families,
* that are plumbed in the global zone. See if_tcp(7p) for a description
* of the ioctls used here.
*/
static int
get_local_netifs(int *if_cnt, struct net_if ***if_list)
{
int s;
int i;
int res = Z_OK;
int space_needed;
int cnt = 0;
struct lifnum if_num;
struct lifconf if_conf;
struct lifreq *if_reqp;
char *if_buf;
struct net_if **local_ifs = NULL;
*if_cnt = 0;
*if_list = NULL;
if ((s = socket(SOCKET_AF(AF_INET), SOCK_DGRAM, 0)) < 0)
return (Z_ERR);
/*
* Come back here in the unlikely event that the number of interfaces
* increases between the time we get the count and the time we do the
* SIOCGLIFCONF ioctl.
*/
retry:
/* Get the number of interfaces. */
if_num.lifn_family = AF_UNSPEC;
if_num.lifn_flags = LIFC_NOXMIT;
if (ioctl(s, SIOCGLIFNUM, &if_num) < 0) {
(void) close(s);
return (Z_ERR);
}
/* Get the interface configuration list. */
space_needed = if_num.lifn_count * sizeof (struct lifreq);
if ((if_buf = malloc(space_needed)) == NULL) {
(void) close(s);
return (Z_ERR);
}
if_conf.lifc_family = AF_UNSPEC;
if_conf.lifc_flags = LIFC_NOXMIT;
if_conf.lifc_len = space_needed;
if_conf.lifc_buf = if_buf;
if (ioctl(s, SIOCGLIFCONF, &if_conf) < 0) {
free(if_buf);
/*
* SIOCGLIFCONF returns EINVAL if the buffer we passed in is
* too small. In this case go back and get the new if cnt.
*/
if (errno == EINVAL)
goto retry;
(void) close(s);
return (Z_ERR);
}
(void) close(s);
/* Get the name and address family for each interface. */
if_reqp = if_conf.lifc_req;
for (i = 0; i < (if_conf.lifc_len / sizeof (struct lifreq)); i++) {
struct net_if **p;
struct lifreq req;
if (strcmp(LOOPBACK_IF, if_reqp->lifr_name) == 0) {
if_reqp++;
continue;
}
if ((s = socket(SOCKET_AF(if_reqp->lifr_addr.ss_family),
SOCK_DGRAM, 0)) == -1) {
res = Z_ERR;
break;
}
(void) strncpy(req.lifr_name, if_reqp->lifr_name,
sizeof (req.lifr_name));
if (ioctl(s, SIOCGLIFADDR, &req) < 0) {
(void) close(s);
if_reqp++;
continue;
}
if ((p = (struct net_if **)realloc(local_ifs,
sizeof (struct net_if *) * (cnt + 1))) == NULL) {
res = Z_ERR;
break;
}
local_ifs = p;
if ((local_ifs[cnt] = malloc(sizeof (struct net_if))) == NULL) {
res = Z_ERR;
break;
}
if ((local_ifs[cnt]->name = strdup(if_reqp->lifr_name))
== NULL) {
free(local_ifs[cnt]);
res = Z_ERR;
break;
}
local_ifs[cnt]->af = req.lifr_addr.ss_family;
cnt++;
(void) close(s);
if_reqp++;
}
free(if_buf);
if (res != Z_OK) {
free_local_netifs(cnt, local_ifs);
} else {
*if_cnt = cnt;
*if_list = local_ifs;
}
return (res);
}
static char *
af2str(int af)
{
switch (af) {
case AF_INET:
return ("IPv4");
case AF_INET6:
return ("IPv6");
default:
return ("Unknown");
}
}
/*
* Cross check the network interface name and address family with the
* interfaces that are set up in the global zone so that we can print the
* appropriate error message.
*/
static void
print_net_err(char *phys, char *addr, int af, char *msg)
{
int i;
int local_if_cnt = 0;
struct net_if **local_ifs = NULL;
boolean_t found_if = B_FALSE;
boolean_t found_af = B_FALSE;
if (get_local_netifs(&local_if_cnt, &local_ifs) != Z_OK) {
(void) fprintf(stderr,
gettext("could not verify %s %s=%s %s=%s\n\t%s\n"),
"net", "address", addr, "physical", phys, msg);
return;
}
for (i = 0; i < local_if_cnt; i++) {
if (strcmp(phys, local_ifs[i]->name) == 0) {
found_if = B_TRUE;
if (af == local_ifs[i]->af) {
found_af = B_TRUE;
break;
}
}
}
free_local_netifs(local_if_cnt, local_ifs);
if (!found_if) {
(void) fprintf(stderr,
gettext("could not verify %s %s=%s\n\t"
"network interface %s is not plumbed in the global zone\n"),
"net", "physical", phys, phys);
return;
}
/*
* Print this error if we were unable to find the address family
* for this interface. If the af variable is not initialized to
* to something meaningful by the caller (not AF_UNSPEC) then we
* also skip this message since it wouldn't be informative.
*/
if (!found_af && af != AF_UNSPEC) {
(void) fprintf(stderr,
gettext("could not verify %s %s=%s %s=%s\n\tthe %s address "
"family is not configured on this network interface in "
"the\n\tglobal zone\n"),
"net", "address", addr, "physical", phys, af2str(af));
return;
}
(void) fprintf(stderr,
gettext("could not verify %s %s=%s %s=%s\n\t%s\n"),
"net", "address", addr, "physical", phys, msg);
}
static int
verify_handle(int cmd_num, zone_dochandle_t handle, char *argv[])
{
struct zone_nwiftab nwiftab;
int return_code = Z_OK;
int err;
boolean_t in_alt_root;
zone_iptype_t iptype;
dladm_handle_t dh;
dladm_status_t status;
datalink_id_t linkid;
char errmsg[DLADM_STRSIZE];
in_alt_root = zonecfg_in_alt_root();
if (in_alt_root)
goto no_net;
if ((err = zonecfg_get_iptype(handle, &iptype)) != Z_OK) {
errno = err;
zperror(cmd_to_str(cmd_num), B_TRUE);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
if ((err = zonecfg_setnwifent(handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(cmd_num), B_TRUE);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
while (zonecfg_getnwifent(handle, &nwiftab) == Z_OK) {
struct lifreq lifr;
sa_family_t af = AF_UNSPEC;
char dl_owner_zname[ZONENAME_MAX];
zoneid_t dl_owner_zid;
zoneid_t target_zid;
int res;
/* skip any loopback interfaces */
if (strcmp(nwiftab.zone_nwif_physical, "lo0") == 0)
continue;
switch (iptype) {
case ZS_SHARED:
if ((res = zonecfg_valid_net_address(
nwiftab.zone_nwif_address, &lifr)) != Z_OK) {
print_net_err(nwiftab.zone_nwif_physical,
nwiftab.zone_nwif_address, af,
zonecfg_strerror(res));
return_code = Z_ERR;
continue;
}
af = lifr.lifr_addr.ss_family;
if (!zonecfg_ifname_exists(af,
nwiftab.zone_nwif_physical)) {
/*
* The interface failed to come up. We continue
* on anyway for the sake of consistency: a
* zone is not shut down if the interface fails
* any time after boot, nor does the global zone
* fail to boot if an interface fails.
*/
(void) fprintf(stderr,
gettext("WARNING: skipping network "
"interface '%s' which may not be "
"present/plumbed in the global "
"zone.\n"),
nwiftab.zone_nwif_physical);
}
break;
case ZS_EXCLUSIVE:
/* Warning if it exists for either IPv4 or IPv6 */
if (zonecfg_ifname_exists(AF_INET,
nwiftab.zone_nwif_physical) ||
zonecfg_ifname_exists(AF_INET6,
nwiftab.zone_nwif_physical)) {
(void) fprintf(stderr,
gettext("WARNING: skipping network "
"interface '%s' which is used in the "
"global zone.\n"),
nwiftab.zone_nwif_physical);
break;
}
/*
* Verify that the datalink exists and that it isn't
* already assigned to a zone.
*/
if ((status = dladm_open(&dh)) == DLADM_STATUS_OK) {
status = dladm_name2info(dh,
nwiftab.zone_nwif_physical, &linkid, NULL,
NULL, NULL);
dladm_close(dh);
}
if (status != DLADM_STATUS_OK) {
(void) fprintf(stderr,
gettext("WARNING: skipping network "
"interface '%s': %s\n"),
nwiftab.zone_nwif_physical,
dladm_status2str(status, errmsg));
break;
}
dl_owner_zid = ALL_ZONES;
if (zone_check_datalink(&dl_owner_zid, linkid) != 0)
break;
/*
* If the zone being verified is
* running and owns the interface
*/
target_zid = getzoneidbyname(target_zone);
if (target_zid == dl_owner_zid)
break;
/* Zone id match failed, use name to check */
if (getzonenamebyid(dl_owner_zid, dl_owner_zname,
ZONENAME_MAX) < 0) {
/* No name, show ID instead */
(void) snprintf(dl_owner_zname, ZONENAME_MAX,
"<%d>", dl_owner_zid);
} else if (strcmp(dl_owner_zname, target_zone) == 0)
break;
/*
* Note here we only report a warning that
* the interface is already in use by another
* running zone, and the verify process just
* goes on, if the interface is still in use
* when this zone really boots up, zoneadmd
* will find it. If the name of the zone which
* owns this interface cannot be determined,
* then it is not possible to determine if there
* is a conflict so just report it as a warning.
*/
(void) fprintf(stderr,
gettext("WARNING: skipping network interface "
"'%s' which is used by the non-global zone "
"'%s'.\n"), nwiftab.zone_nwif_physical,
dl_owner_zname);
break;
}
}
(void) zonecfg_endnwifent(handle);
no_net:
/* verify that lofs has not been excluded from the kernel */
if (!(cmd_num == CMD_DETACH || cmd_num == CMD_ATTACH ||
cmd_num == CMD_MOVE || cmd_num == CMD_CLONE) &&
modctl(MODLOAD, 1, "fs/lofs", NULL) != 0) {
if (errno == ENXIO)
(void) fprintf(stderr, gettext("could not verify "
"lofs(7FS): possibly excluded in /etc/system\n"));
else
(void) fprintf(stderr, gettext("could not verify "
"lofs(7FS): %s\n"), strerror(errno));
return_code = Z_ERR;
}
if (verify_filesystems(handle) != Z_OK)
return_code = Z_ERR;
if (verify_ipd(handle) != Z_OK)
return_code = Z_ERR;
if (!in_alt_root && verify_rctls(handle) != Z_OK)
return_code = Z_ERR;
if (!in_alt_root && verify_pool(handle) != Z_OK)
return_code = Z_ERR;
if (!in_alt_root && verify_brand(handle, cmd_num, argv) != Z_OK)
return_code = Z_ERR;
if (!in_alt_root && verify_datasets(handle) != Z_OK)
return_code = Z_ERR;
/*
* As the "mount" command is used for patching/upgrading of zones
* or other maintenance processes, the zone's privilege set is not
* checked in this case. Instead, the default, safe set of
* privileges will be used when this zone is created in the
* kernel.
*/
if (!in_alt_root && cmd_num != CMD_MOUNT &&
verify_limitpriv(handle) != Z_OK)
return_code = Z_ERR;
return (return_code);
}
static int
verify_details(int cmd_num, char *argv[])
{
zone_dochandle_t handle;
char zonepath[MAXPATHLEN], checkpath[MAXPATHLEN];
int return_code = Z_OK;
int err;
if ((handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(cmd_num), B_TRUE);
return (Z_ERR);
}
if ((err = zonecfg_get_handle(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(cmd_num), B_TRUE);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
if ((err = zonecfg_get_zonepath(handle, zonepath, sizeof (zonepath))) !=
Z_OK) {
errno = err;
zperror(cmd_to_str(cmd_num), B_TRUE);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
/*
* zonecfg_get_zonepath() gets its data from the XML repository.
* Verify this against the index file, which is checked first by
* zone_get_zonepath(). If they don't match, bail out.
*/
if ((err = zone_get_zonepath(target_zone, checkpath,
sizeof (checkpath))) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get zone path"));
zonecfg_fini_handle(handle);
return (Z_ERR);
}
if (strcmp(zonepath, checkpath) != 0) {
/*
* TRANSLATION_NOTE
* XML and zonepath are literals that should not be translated.
*/
(void) fprintf(stderr, gettext("The XML repository has "
"zonepath '%s',\nbut the index file has zonepath '%s'.\n"
"These must match, so fix the incorrect entry.\n"),
zonepath, checkpath);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
if (cmd_num != CMD_ATTACH &&
validate_zonepath(zonepath, cmd_num) != Z_OK) {
(void) fprintf(stderr, gettext("could not verify zonepath %s "
"because of the above errors.\n"), zonepath);
return_code = Z_ERR;
}
if (verify_handle(cmd_num, handle, argv) != Z_OK)
return_code = Z_ERR;
zonecfg_fini_handle(handle);
if (return_code == Z_ERR)
(void) fprintf(stderr,
gettext("%s: zone %s failed to verify\n"),
execname, target_zone);
return (return_code);
}
static int
verify_func(int argc, char *argv[])
{
int arg;
optind = 0;
if ((arg = getopt(argc, argv, "?")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_VERIFY, CMD_VERIFY);
return (optopt == '?' ? Z_OK : Z_USAGE);
default:
sub_usage(SHELP_VERIFY, CMD_VERIFY);
return (Z_USAGE);
}
}
if (argc > optind) {
sub_usage(SHELP_VERIFY, CMD_VERIFY);
return (Z_USAGE);
}
if (sanity_check(target_zone, CMD_VERIFY, B_FALSE, B_FALSE, B_FALSE)
!= Z_OK)
return (Z_ERR);
return (verify_details(CMD_VERIFY, argv));
}
static int
addoptions(char *buf, char *argv[], size_t len)
{
int i = 0;
if (buf[0] == '\0')
return (Z_OK);
while (argv[i] != NULL) {
if (strlcat(buf, " ", len) >= len ||
strlcat(buf, argv[i++], len) >= len) {
zerror("Command line too long");
return (Z_ERR);
}
}
return (Z_OK);
}
static int
addopt(char *buf, int opt, char *optarg, size_t bufsize)
{
char optstring[4];
if (opt > 0)
(void) sprintf(optstring, " -%c", opt);
else
(void) strcpy(optstring, " ");
if ((strlcat(buf, optstring, bufsize) > bufsize))
return (Z_ERR);
if ((optarg != NULL) && (strlcat(buf, optarg, bufsize) > bufsize))
return (Z_ERR);
return (Z_OK);
}
/* ARGSUSED */
static int
install_func(int argc, char *argv[])
{
char cmdbuf[MAXPATHLEN];
char postcmdbuf[MAXPATHLEN];
int lockfd;
int arg, err, subproc_err;
char zonepath[MAXPATHLEN];
brand_handle_t bh = NULL;
int status;
boolean_t nodataset = B_FALSE;
boolean_t do_postinstall = B_FALSE;
boolean_t brand_help = B_FALSE;
char opts[128];
if (target_zone == NULL) {
sub_usage(SHELP_INSTALL, CMD_INSTALL);
return (Z_USAGE);
}
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot install zone in alternate root"));
return (Z_ERR);
}
if ((err = zone_get_zonepath(target_zone, zonepath,
sizeof (zonepath))) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get zone path"));
return (Z_ERR);
}
/* Fetch the install command from the brand configuration. */
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
return (Z_ERR);
}
if (get_hook(bh, cmdbuf, sizeof (cmdbuf), brand_get_install,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing install resource");
brand_close(bh);
return (Z_ERR);
}
if (get_hook(bh, postcmdbuf, sizeof (postcmdbuf), brand_get_postinstall,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing postinstall "
"resource");
brand_close(bh);
return (Z_ERR);
}
if (postcmdbuf[0] != '\0')
do_postinstall = B_TRUE;
(void) strcpy(opts, "?x:");
/*
* Fetch the list of recognized command-line options from
* the brand configuration file.
*/
if (brand_get_installopts(bh, opts + strlen(opts),
sizeof (opts) - strlen(opts)) != 0) {
zerror("invalid brand configuration: missing "
"install options resource");
brand_close(bh);
return (Z_ERR);
}
brand_close(bh);
if (cmdbuf[0] == '\0') {
zerror("Missing brand install command");
return (Z_ERR);
}
/* Check the argv string for args we handle internally */
optind = 0;
opterr = 0;
while ((arg = getopt(argc, argv, opts)) != EOF) {
switch (arg) {
case '?':
if (optopt == '?') {
sub_usage(SHELP_INSTALL, CMD_INSTALL);
brand_help = B_TRUE;
}
/* Ignore unknown options - may be brand specific. */
break;
case 'x':
/* Handle this option internally, don't pass to brand */
if (strcmp(optarg, "nodataset") == 0) {
/* Handle this option internally */
nodataset = B_TRUE;
}
continue;
default:
/* Ignore unknown options - may be brand specific. */
break;
}
/*
* Append the option to the command line passed to the
* brand-specific install and postinstall routines.
*/
if (addopt(cmdbuf, optopt, optarg, sizeof (cmdbuf)) != Z_OK) {
zerror("Install command line too long");
return (Z_ERR);
}
if (addopt(postcmdbuf, optopt, optarg, sizeof (postcmdbuf))
!= Z_OK) {
zerror("Post-Install command line too long");
return (Z_ERR);
}
}
for (; optind < argc; optind++) {
if (addopt(cmdbuf, 0, argv[optind], sizeof (cmdbuf)) != Z_OK) {
zerror("Install command line too long");
return (Z_ERR);
}
if (addopt(postcmdbuf, 0, argv[optind], sizeof (postcmdbuf))
!= Z_OK) {
zerror("Post-Install command line too long");
return (Z_ERR);
}
}
if (!brand_help) {
if (sanity_check(target_zone, CMD_INSTALL, B_FALSE, B_TRUE,
B_FALSE) != Z_OK)
return (Z_ERR);
if (verify_details(CMD_INSTALL, argv) != Z_OK)
return (Z_ERR);
if (zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in "
"progress."), "zoneadm");
return (Z_ERR);
}
err = zone_set_state(target_zone, ZONE_STATE_INCOMPLETE);
if (err != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
goto done;
}
if (!nodataset)
create_zfs_zonepath(zonepath);
}
status = do_subproc(cmdbuf);
if ((subproc_err =
subproc_status(gettext("brand-specific installation"), status,
B_FALSE)) != ZONE_SUBPROC_OK) {
if (subproc_err == ZONE_SUBPROC_USAGE && !brand_help) {
sub_usage(SHELP_INSTALL, CMD_INSTALL);
zonecfg_release_lock_file(target_zone, lockfd);
return (Z_ERR);
}
err = Z_ERR;
goto done;
}
if (brand_help)
return (Z_OK);
if ((err = zone_set_state(target_zone, ZONE_STATE_INSTALLED)) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
goto done;
}
if (do_postinstall) {
status = do_subproc(postcmdbuf);
if ((subproc_err =
subproc_status(gettext("brand-specific post-install"),
status, B_FALSE)) != ZONE_SUBPROC_OK) {
err = Z_ERR;
(void) zone_set_state(target_zone,
ZONE_STATE_INCOMPLETE);
}
}
done:
/*
* If the install script exited with ZONE_SUBPROC_NOTCOMPLETE, try to
* clean up the zone and leave the zone in the CONFIGURED state so that
* another install can be attempted without requiring an uninstall
* first.
*/
if (subproc_err == ZONE_SUBPROC_NOTCOMPLETE) {
if ((err = cleanup_zonepath(zonepath, B_FALSE)) != Z_OK) {
errno = err;
zperror2(target_zone,
gettext("cleaning up zonepath failed"));
} else if ((err = zone_set_state(target_zone,
ZONE_STATE_CONFIGURED)) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
}
}
if (!brand_help)
zonecfg_release_lock_file(target_zone, lockfd);
return ((err == Z_OK) ? Z_OK : Z_ERR);
}
/*
* Check that the inherited pkg dirs are the same for the clone and its source.
* The easiest way to do that is check that the list of ipds is the same
* by matching each one against the other. This algorithm should be fine since
* the list of ipds should not be that long.
*/
static int
valid_ipd_clone(zone_dochandle_t s_handle, char *source_zone,
zone_dochandle_t t_handle, char *target_zone)
{
int err;
int res = Z_OK;
int s_cnt = 0;
int t_cnt = 0;
struct zone_fstab s_fstab;
struct zone_fstab t_fstab;
/*
* First check the source of the clone against the target.
*/
if ((err = zonecfg_setipdent(s_handle)) != Z_OK) {
errno = err;
zperror2(source_zone, gettext("could not enumerate "
"inherit-pkg-dirs"));
return (Z_ERR);
}
while (zonecfg_getipdent(s_handle, &s_fstab) == Z_OK) {
boolean_t match = B_FALSE;
s_cnt++;
if ((err = zonecfg_setipdent(t_handle)) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not enumerate "
"inherit-pkg-dirs"));
(void) zonecfg_endipdent(s_handle);
return (Z_ERR);
}
while (zonecfg_getipdent(t_handle, &t_fstab) == Z_OK) {
if (strcmp(s_fstab.zone_fs_dir, t_fstab.zone_fs_dir)
== 0) {
match = B_TRUE;
break;
}
}
(void) zonecfg_endipdent(t_handle);
if (!match) {
(void) fprintf(stderr, gettext("inherit-pkg-dir "
"'%s' is not configured in zone %s.\n"),
s_fstab.zone_fs_dir, target_zone);
res = Z_ERR;
}
}
(void) zonecfg_endipdent(s_handle);
/* skip the next check if we already have errors */
if (res == Z_ERR)
return (res);
/*
* Now check the number of ipds in the target so we can verify
* that the source is not a subset of the target.
*/
if ((err = zonecfg_setipdent(t_handle)) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not enumerate "
"inherit-pkg-dirs"));
return (Z_ERR);
}
while (zonecfg_getipdent(t_handle, &t_fstab) == Z_OK)
t_cnt++;
(void) zonecfg_endipdent(t_handle);
if (t_cnt != s_cnt) {
(void) fprintf(stderr, gettext("Zone %s is configured "
"with inherit-pkg-dirs that are not configured in zone "
"%s.\n"), target_zone, source_zone);
res = Z_ERR;
}
return (res);
}
static void
warn_dev_match(zone_dochandle_t s_handle, char *source_zone,
zone_dochandle_t t_handle, char *target_zone)
{
int err;
struct zone_devtab s_devtab;
struct zone_devtab t_devtab;
if ((err = zonecfg_setdevent(t_handle)) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not enumerate devices"));
return;
}
while (zonecfg_getdevent(t_handle, &t_devtab) == Z_OK) {
if ((err = zonecfg_setdevent(s_handle)) != Z_OK) {
errno = err;
zperror2(source_zone,
gettext("could not enumerate devices"));
(void) zonecfg_enddevent(t_handle);
return;
}
while (zonecfg_getdevent(s_handle, &s_devtab) == Z_OK) {
/*
* Use fnmatch to catch the case where wildcards
* were used in one zone and the other has an
* explicit entry (e.g. /dev/dsk/c0t0d0s6 vs.
* /dev/\*dsk/c0t0d0s6).
*/
if (fnmatch(t_devtab.zone_dev_match,
s_devtab.zone_dev_match, FNM_PATHNAME) == 0 ||
fnmatch(s_devtab.zone_dev_match,
t_devtab.zone_dev_match, FNM_PATHNAME) == 0) {
(void) fprintf(stderr,
gettext("WARNING: device '%s' "
"is configured in both zones.\n"),
t_devtab.zone_dev_match);
break;
}
}
(void) zonecfg_enddevent(s_handle);
}
(void) zonecfg_enddevent(t_handle);
}
/*
* Check if the specified mount option (opt) is contained within the
* options string.
*/
static boolean_t
opt_match(char *opt, char *options)
{
char *p;
char *lastp;
if ((p = strtok_r(options, ",", &lastp)) != NULL) {
if (strcmp(p, opt) == 0)
return (B_TRUE);
while ((p = strtok_r(NULL, ",", &lastp)) != NULL) {
if (strcmp(p, opt) == 0)
return (B_TRUE);
}
}
return (B_FALSE);
}
#define RW_LOFS "WARNING: read-write lofs file system on '%s' is configured " \
"in both zones.\n"
static void
print_fs_warnings(struct zone_fstab *s_fstab, struct zone_fstab *t_fstab)
{
/*
* It is ok to have shared lofs mounted fs but we want to warn if
* either is rw since this will effect the other zone.
*/
if (strcmp(t_fstab->zone_fs_type, "lofs") == 0) {
zone_fsopt_t *optp;
/* The default is rw so no options means rw */
if (t_fstab->zone_fs_options == NULL ||
s_fstab->zone_fs_options == NULL) {
(void) fprintf(stderr, gettext(RW_LOFS),
t_fstab->zone_fs_special);
return;
}
for (optp = s_fstab->zone_fs_options; optp != NULL;
optp = optp->zone_fsopt_next) {
if (opt_match("rw", optp->zone_fsopt_opt)) {
(void) fprintf(stderr, gettext(RW_LOFS),
s_fstab->zone_fs_special);
return;
}
}
for (optp = t_fstab->zone_fs_options; optp != NULL;
optp = optp->zone_fsopt_next) {
if (opt_match("rw", optp->zone_fsopt_opt)) {
(void) fprintf(stderr, gettext(RW_LOFS),
t_fstab->zone_fs_special);
return;
}
}
return;
}
/*
* TRANSLATION_NOTE
* The first variable is the file system type and the second is
* the file system special device. For example,
* WARNING: ufs file system on '/dev/dsk/c0t0d0s0' ...
*/
(void) fprintf(stderr, gettext("WARNING: %s file system on '%s' "
"is configured in both zones.\n"), t_fstab->zone_fs_type,
t_fstab->zone_fs_special);
}
static void
warn_fs_match(zone_dochandle_t s_handle, char *source_zone,
zone_dochandle_t t_handle, char *target_zone)
{
int err;
struct zone_fstab s_fstab;
struct zone_fstab t_fstab;
if ((err = zonecfg_setfsent(t_handle)) != Z_OK) {
errno = err;
zperror2(target_zone,
gettext("could not enumerate file systems"));
return;
}
while (zonecfg_getfsent(t_handle, &t_fstab) == Z_OK) {
if ((err = zonecfg_setfsent(s_handle)) != Z_OK) {
errno = err;
zperror2(source_zone,
gettext("could not enumerate file systems"));
(void) zonecfg_endfsent(t_handle);
return;
}
while (zonecfg_getfsent(s_handle, &s_fstab) == Z_OK) {
if (strcmp(t_fstab.zone_fs_special,
s_fstab.zone_fs_special) == 0) {
print_fs_warnings(&s_fstab, &t_fstab);
break;
}
}
(void) zonecfg_endfsent(s_handle);
}
(void) zonecfg_endfsent(t_handle);
}
/*
* We don't catch the case where you used the same IP address but
* it is not an exact string match. For example, 192.9.0.128 vs. 192.09.0.128.
* However, we're not going to worry about that but we will check for
* a possible netmask on one of the addresses (e.g. 10.0.0.1 and 10.0.0.1/24)
* and handle that case as a match.
*/
static void
warn_ip_match(zone_dochandle_t s_handle, char *source_zone,
zone_dochandle_t t_handle, char *target_zone)
{
int err;
struct zone_nwiftab s_nwiftab;
struct zone_nwiftab t_nwiftab;
if ((err = zonecfg_setnwifent(t_handle)) != Z_OK) {
errno = err;
zperror2(target_zone,
gettext("could not enumerate network interfaces"));
return;
}
while (zonecfg_getnwifent(t_handle, &t_nwiftab) == Z_OK) {
char *p;
/* remove an (optional) netmask from the address */
if ((p = strchr(t_nwiftab.zone_nwif_address, '/')) != NULL)
*p = '\0';
if ((err = zonecfg_setnwifent(s_handle)) != Z_OK) {
errno = err;
zperror2(source_zone,
gettext("could not enumerate network interfaces"));
(void) zonecfg_endnwifent(t_handle);
return;
}
while (zonecfg_getnwifent(s_handle, &s_nwiftab) == Z_OK) {
/* remove an (optional) netmask from the address */
if ((p = strchr(s_nwiftab.zone_nwif_address, '/'))
!= NULL)
*p = '\0';
/* For exclusive-IP zones, address is not specified. */
if (strlen(s_nwiftab.zone_nwif_address) == 0)
continue;
if (strcmp(t_nwiftab.zone_nwif_address,
s_nwiftab.zone_nwif_address) == 0) {
(void) fprintf(stderr,
gettext("WARNING: network address '%s' "
"is configured in both zones.\n"),
t_nwiftab.zone_nwif_address);
break;
}
}
(void) zonecfg_endnwifent(s_handle);
}
(void) zonecfg_endnwifent(t_handle);
}
static void
warn_dataset_match(zone_dochandle_t s_handle, char *source,
zone_dochandle_t t_handle, char *target)
{
int err;
struct zone_dstab s_dstab;
struct zone_dstab t_dstab;
if ((err = zonecfg_setdsent(t_handle)) != Z_OK) {
errno = err;
zperror2(target, gettext("could not enumerate datasets"));
return;
}
while (zonecfg_getdsent(t_handle, &t_dstab) == Z_OK) {
if ((err = zonecfg_setdsent(s_handle)) != Z_OK) {
errno = err;
zperror2(source,
gettext("could not enumerate datasets"));
(void) zonecfg_enddsent(t_handle);
return;
}
while (zonecfg_getdsent(s_handle, &s_dstab) == Z_OK) {
if (strcmp(t_dstab.zone_dataset_name,
s_dstab.zone_dataset_name) == 0) {
target_zone = source;
zerror(gettext("WARNING: dataset '%s' "
"is configured in both zones.\n"),
t_dstab.zone_dataset_name);
break;
}
}
(void) zonecfg_enddsent(s_handle);
}
(void) zonecfg_enddsent(t_handle);
}
/*
* Check that the clone and its source have the same brand type.
*/
static int
valid_brand_clone(char *source_zone, char *target_zone)
{
brand_handle_t bh;
char source_brand[MAXNAMELEN];
if ((zone_get_brand(source_zone, source_brand,
sizeof (source_brand))) != Z_OK) {
(void) fprintf(stderr, "%s: zone '%s': %s\n",
execname, source_zone, gettext("missing or invalid brand"));
return (Z_ERR);
}
if (strcmp(source_brand, target_brand) != NULL) {
(void) fprintf(stderr,
gettext("%s: Zones '%s' and '%s' have different brand "
"types.\n"), execname, source_zone, target_zone);
return (Z_ERR);
}
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
return (Z_ERR);
}
brand_close(bh);
return (Z_OK);
}
static int
validate_clone(char *source_zone, char *target_zone)
{
int err = Z_OK;
zone_dochandle_t s_handle;
zone_dochandle_t t_handle;
if ((t_handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_CLONE), B_TRUE);
return (Z_ERR);
}
if ((err = zonecfg_get_handle(target_zone, t_handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_CLONE), B_TRUE);
zonecfg_fini_handle(t_handle);
return (Z_ERR);
}
if ((s_handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_CLONE), B_TRUE);
zonecfg_fini_handle(t_handle);
return (Z_ERR);
}
if ((err = zonecfg_get_handle(source_zone, s_handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_CLONE), B_TRUE);
goto done;
}
/* verify new zone has same brand type */
err = valid_brand_clone(source_zone, target_zone);
if (err != Z_OK)
goto done;
/* verify new zone has same inherit-pkg-dirs */
err = valid_ipd_clone(s_handle, source_zone, t_handle, target_zone);
/* warn about imported fs's which are the same */
warn_fs_match(s_handle, source_zone, t_handle, target_zone);
/* warn about imported IP addresses which are the same */
warn_ip_match(s_handle, source_zone, t_handle, target_zone);
/* warn about imported devices which are the same */
warn_dev_match(s_handle, source_zone, t_handle, target_zone);
/* warn about imported datasets which are the same */
warn_dataset_match(s_handle, source_zone, t_handle, target_zone);
done:
zonecfg_fini_handle(t_handle);
zonecfg_fini_handle(s_handle);
return ((err == Z_OK) ? Z_OK : Z_ERR);
}
static int
copy_zone(char *src, char *dst)
{
boolean_t out_null = B_FALSE;
int status;
char *outfile;
char cmdbuf[MAXPATHLEN * 2 + 128];
if ((outfile = tempnam("/var/log", "zone")) == NULL) {
outfile = "/dev/null";
out_null = B_TRUE;
}
/*
* Use find to get the list of files to copy. We need to skip
* files of type "socket" since cpio can't handle those but that
* should be ok since the app will recreate the socket when it runs.
* We also need to filter out anything under the .zfs subdir. Since
* find is running depth-first, we need the extra egrep to filter .zfs.
*/
(void) snprintf(cmdbuf, sizeof (cmdbuf),
"cd %s && /usr/bin/find . -type s -prune -o -depth -print | "
"/usr/bin/egrep -v '^\\./\\.zfs$|^\\./\\.zfs/' | "
"/usr/bin/cpio -pdmuP@ %s > %s 2>&1",
src, dst, outfile);
status = do_subproc(cmdbuf);
if (subproc_status("copy", status, B_TRUE) != ZONE_SUBPROC_OK) {
if (!out_null)
(void) fprintf(stderr, gettext("\nThe copy failed.\n"
"More information can be found in %s\n"), outfile);
return (Z_ERR);
}
if (!out_null)
(void) unlink(outfile);
return (Z_OK);
}
/* ARGSUSED */
int
zfm_print(const struct mnttab *p, void *r) {
zerror(" %s\n", p->mnt_mountp);
return (0);
}
int
clone_copy(char *source_zonepath, char *zonepath)
{
int err;
/* Don't clone the zone if anything is still mounted there */
if (zonecfg_find_mounts(source_zonepath, NULL, NULL)) {
zerror(gettext("These file systems are mounted on "
"subdirectories of %s.\n"), source_zonepath);
(void) zonecfg_find_mounts(source_zonepath, zfm_print, NULL);
return (Z_ERR);
}
/*
* Attempt to create a ZFS fs for the zonepath. As usual, we don't
* care if this works or not since we always have the default behavior
* of a simple directory for the zonepath.
*/
create_zfs_zonepath(zonepath);
(void) printf(gettext("Copying %s..."), source_zonepath);
(void) fflush(stdout);
err = copy_zone(source_zonepath, zonepath);
(void) printf("\n");
return (err);
}
static int
clone_func(int argc, char *argv[])
{
char *source_zone = NULL;
int lockfd;
int err, arg;
char zonepath[MAXPATHLEN];
char source_zonepath[MAXPATHLEN];
zone_state_t state;
zone_entry_t *zent;
char *method = NULL;
char *snapshot = NULL;
char cmdbuf[MAXPATHLEN];
char postcmdbuf[MAXPATHLEN];
char presnapbuf[MAXPATHLEN];
char postsnapbuf[MAXPATHLEN];
char validsnapbuf[MAXPATHLEN];
brand_handle_t bh = NULL;
int status;
boolean_t brand_help = B_FALSE;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot clone zone in alternate root"));
return (Z_ERR);
}
/* Check the argv string for args we handle internally */
optind = 0;
opterr = 0;
while ((arg = getopt(argc, argv, "?m:s:")) != EOF) {
switch (arg) {
case '?':
if (optopt == '?') {
sub_usage(SHELP_CLONE, CMD_CLONE);
brand_help = B_TRUE;
}
/* Ignore unknown options - may be brand specific. */
break;
case 'm':
method = optarg;
break;
case 's':
snapshot = optarg;
break;
default:
/* Ignore unknown options - may be brand specific. */
break;
}
}
if (argc != (optind + 1)) {
sub_usage(SHELP_CLONE, CMD_CLONE);
return (Z_USAGE);
}
source_zone = argv[optind];
if (!brand_help) {
if (sanity_check(target_zone, CMD_CLONE, B_FALSE, B_TRUE,
B_FALSE) != Z_OK)
return (Z_ERR);
if (verify_details(CMD_CLONE, argv) != Z_OK)
return (Z_ERR);
/*
* We also need to do some extra validation on the source zone.
*/
if (strcmp(source_zone, GLOBAL_ZONENAME) == 0) {
zerror(gettext("%s operation is invalid for the "
"global zone."), cmd_to_str(CMD_CLONE));
return (Z_ERR);
}
if (strncmp(source_zone, "SUNW", 4) == 0) {
zerror(gettext("%s operation is invalid for zones "
"starting with SUNW."), cmd_to_str(CMD_CLONE));
return (Z_ERR);
}
zent = lookup_running_zone(source_zone);
if (zent != NULL) {
/* check whether the zone is ready or running */
if ((err = zone_get_state(zent->zname,
&zent->zstate_num)) != Z_OK) {
errno = err;
zperror2(zent->zname, gettext("could not get "
"state"));
/* can't tell, so hedge */
zent->zstate_str = "ready/running";
} else {
zent->zstate_str =
zone_state_str(zent->zstate_num);
}
zerror(gettext("%s operation is invalid for %s zones."),
cmd_to_str(CMD_CLONE), zent->zstate_str);
return (Z_ERR);
}
if ((err = zone_get_state(source_zone, &state)) != Z_OK) {
errno = err;
zperror2(source_zone, gettext("could not get state"));
return (Z_ERR);
}
if (state != ZONE_STATE_INSTALLED) {
(void) fprintf(stderr,
gettext("%s: zone %s is %s; %s is required.\n"),
execname, source_zone, zone_state_str(state),
zone_state_str(ZONE_STATE_INSTALLED));
return (Z_ERR);
}
/*
* The source zone checks out ok, continue with the clone.
*/
if (validate_clone(source_zone, target_zone) != Z_OK)
return (Z_ERR);
if (zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in "
"progress."), "zoneadm");
return (Z_ERR);
}
}
if ((err = zone_get_zonepath(source_zone, source_zonepath,
sizeof (source_zonepath))) != Z_OK) {
errno = err;
zperror2(source_zone, gettext("could not get zone path"));
goto done;
}
if ((err = zone_get_zonepath(target_zone, zonepath, sizeof (zonepath)))
!= Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get zone path"));
goto done;
}
/*
* Fetch the clone and postclone hooks from the brand configuration.
*/
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
err = Z_ERR;
goto done;
}
if (get_hook(bh, cmdbuf, sizeof (cmdbuf), brand_get_clone, target_zone,
zonepath) != Z_OK) {
zerror("invalid brand configuration: missing clone resource");
brand_close(bh);
err = Z_ERR;
goto done;
}
if (get_hook(bh, postcmdbuf, sizeof (postcmdbuf), brand_get_postclone,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing postclone "
"resource");
brand_close(bh);
err = Z_ERR;
goto done;
}
if (get_hook(bh, presnapbuf, sizeof (presnapbuf), brand_get_presnap,
source_zone, source_zonepath) != Z_OK) {
zerror("invalid brand configuration: missing presnap "
"resource");
brand_close(bh);
err = Z_ERR;
goto done;
}
if (get_hook(bh, postsnapbuf, sizeof (postsnapbuf), brand_get_postsnap,
source_zone, source_zonepath) != Z_OK) {
zerror("invalid brand configuration: missing postsnap "
"resource");
brand_close(bh);
err = Z_ERR;
goto done;
}
if (get_hook(bh, validsnapbuf, sizeof (validsnapbuf),
brand_get_validatesnap, target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing validatesnap "
"resource");
brand_close(bh);
err = Z_ERR;
goto done;
}
brand_close(bh);
/* Append all options to clone hook. */
if (addoptions(cmdbuf, argv, sizeof (cmdbuf)) != Z_OK) {
err = Z_ERR;
goto done;
}
/* Append all options to postclone hook. */
if (addoptions(postcmdbuf, argv, sizeof (postcmdbuf)) != Z_OK) {
err = Z_ERR;
goto done;
}
if (!brand_help) {
if ((err = zone_set_state(target_zone, ZONE_STATE_INCOMPLETE))
!= Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
goto done;
}
}
/*
* The clone hook is optional. If it exists, use the hook for
* cloning, otherwise use the built-in clone support
*/
if (cmdbuf[0] != '\0') {
/* Run the clone hook */
status = do_subproc(cmdbuf);
if ((status = subproc_status(gettext("brand-specific clone"),
status, B_FALSE)) != ZONE_SUBPROC_OK) {
if (status == ZONE_SUBPROC_USAGE && !brand_help)
sub_usage(SHELP_CLONE, CMD_CLONE);
err = Z_ERR;
goto done;
}
if (brand_help)
return (Z_OK);
} else {
/* If just help, we're done since there is no brand help. */
if (brand_help)
return (Z_OK);
/* Run the built-in clone support. */
/* The only explicit built-in method is "copy". */
if (method != NULL && strcmp(method, "copy") != 0) {
sub_usage(SHELP_CLONE, CMD_CLONE);
err = Z_USAGE;
goto done;
}
if (snapshot != NULL) {
err = clone_snapshot_zfs(snapshot, zonepath,
validsnapbuf);
} else {
/*
* We always copy the clone unless the source is ZFS
* and a ZFS clone worked. We fallback to copying if
* the ZFS clone fails for some reason.
*/
err = Z_ERR;
if (method == NULL && is_zonepath_zfs(source_zonepath))
err = clone_zfs(source_zonepath, zonepath,
presnapbuf, postsnapbuf);
if (err != Z_OK)
err = clone_copy(source_zonepath, zonepath);
}
}
if (err == Z_OK && postcmdbuf[0] != '\0') {
status = do_subproc(postcmdbuf);
if ((err = subproc_status("postclone", status, B_FALSE))
!= ZONE_SUBPROC_OK) {
zerror(gettext("post-clone configuration failed."));
err = Z_ERR;
}
}
done:
/*
* If everything went well, we mark the zone as installed.
*/
if (err == Z_OK) {
err = zone_set_state(target_zone, ZONE_STATE_INSTALLED);
if (err != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
}
}
if (!brand_help)
zonecfg_release_lock_file(target_zone, lockfd);
return ((err == Z_OK) ? Z_OK : Z_ERR);
}
/*
* Used when removing a zonepath after uninstalling or cleaning up after
* the move subcommand. This handles a zonepath that has non-standard
* contents so that we will only cleanup the stuff we know about and leave
* any user data alone.
*
* If the "all" parameter is true then we should remove the whole zonepath
* even if it has non-standard files/directories in it. This can be used when
* we need to cleanup after moving the zonepath across file systems.
*
* We "exec" the RMCOMMAND so that the returned status is that of RMCOMMAND
* and not the shell.
*/
static int
cleanup_zonepath(char *zonepath, boolean_t all)
{
int status;
int i;
boolean_t non_std = B_FALSE;
struct dirent *dp;
DIR *dirp;
/*
* The SUNWattached.xml file is expected since it might
* exist if the zone was force-attached after a
* migration.
*/
char *std_entries[] = {"dev", "lu", "root",
"SUNWattached.xml", NULL};
/* (MAXPATHLEN * 3) is for the 3 std_entries dirs */
char cmdbuf[sizeof (RMCOMMAND) + (MAXPATHLEN * 3) + 64];
/*
* We shouldn't need these checks but lets be paranoid since we
* could blow away the whole system here if we got the wrong zonepath.
*/
if (*zonepath == NULL || strcmp(zonepath, "/") == 0) {
(void) fprintf(stderr, "invalid zonepath '%s'\n", zonepath);
return (Z_INVAL);
}
/*
* If the dirpath is already gone (maybe it was manually removed) then
* we just return Z_OK so that the cleanup is successful.
*/
if ((dirp = opendir(zonepath)) == NULL)
return (Z_OK);
/*
* Look through the zonepath directory to see if there are any
* non-standard files/dirs. Also skip .zfs since that might be
* there but we'll handle ZFS file systems as a special case.
*/
while ((dp = readdir(dirp)) != NULL) {
if (strcmp(dp->d_name, ".") == 0 ||
strcmp(dp->d_name, "..") == 0 ||
strcmp(dp->d_name, ".zfs") == 0)
continue;
for (i = 0; std_entries[i] != NULL; i++)
if (strcmp(dp->d_name, std_entries[i]) == 0)
break;
if (std_entries[i] == NULL)
non_std = B_TRUE;
}
(void) closedir(dirp);
if (!all && non_std) {
/*
* There are extra, non-standard directories/files in the
* zonepath so we don't want to remove the zonepath. We
* just want to remove the standard directories and leave
* the user data alone.
*/
(void) snprintf(cmdbuf, sizeof (cmdbuf), "exec " RMCOMMAND);
for (i = 0; std_entries[i] != NULL; i++) {
char tmpbuf[MAXPATHLEN];
if (snprintf(tmpbuf, sizeof (tmpbuf), " %s/%s",
zonepath, std_entries[i]) >= sizeof (tmpbuf) ||
strlcat(cmdbuf, tmpbuf, sizeof (cmdbuf)) >=
sizeof (cmdbuf)) {
(void) fprintf(stderr,
gettext("path is too long\n"));
return (Z_INVAL);
}
}
status = do_subproc(cmdbuf);
(void) fprintf(stderr, gettext("WARNING: Unable to completely "
"remove %s\nbecause it contains additional user data. "
"Only the standard directory\nentries have been "
"removed.\n"),
zonepath);
return ((subproc_status(RMCOMMAND, status, B_TRUE) ==
ZONE_SUBPROC_OK) ? Z_OK : Z_ERR);
}
/*
* There is nothing unexpected in the zonepath, try to get rid of the
* whole zonepath directory.
*
* If the zonepath is its own zfs file system, try to destroy the
* file system. If that fails for some reason (e.g. it has clones)
* then we'll just remove the contents of the zonepath.
*/
if (is_zonepath_zfs(zonepath)) {
if (destroy_zfs(zonepath) == Z_OK)
return (Z_OK);
(void) snprintf(cmdbuf, sizeof (cmdbuf), "exec " RMCOMMAND
" %s/*", zonepath);
status = do_subproc(cmdbuf);
return ((subproc_status(RMCOMMAND, status, B_TRUE) ==
ZONE_SUBPROC_OK) ? Z_OK : Z_ERR);
}
(void) snprintf(cmdbuf, sizeof (cmdbuf), "exec " RMCOMMAND " %s",
zonepath);
status = do_subproc(cmdbuf);
return ((subproc_status(RMCOMMAND, status, B_TRUE) == ZONE_SUBPROC_OK)
? Z_OK : Z_ERR);
}
static int
move_func(int argc, char *argv[])
{
char *new_zonepath = NULL;
int lockfd;
int err, arg;
char zonepath[MAXPATHLEN];
zone_dochandle_t handle;
boolean_t fast;
boolean_t is_zfs = B_FALSE;
boolean_t root_fs_mounted = B_FALSE;
struct dirent *dp;
DIR *dirp;
boolean_t empty = B_TRUE;
boolean_t revert;
struct stat zonepath_buf;
struct stat new_zonepath_buf;
zone_mounts_t mounts;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot move zone in alternate root"));
return (Z_ERR);
}
optind = 0;
if ((arg = getopt(argc, argv, "?")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_MOVE, CMD_MOVE);
return (optopt == '?' ? Z_OK : Z_USAGE);
default:
sub_usage(SHELP_MOVE, CMD_MOVE);
return (Z_USAGE);
}
}
if (argc != (optind + 1)) {
sub_usage(SHELP_MOVE, CMD_MOVE);
return (Z_USAGE);
}
new_zonepath = argv[optind];
if (sanity_check(target_zone, CMD_MOVE, B_FALSE, B_TRUE, B_FALSE)
!= Z_OK)
return (Z_ERR);
if (verify_details(CMD_MOVE, argv) != Z_OK)
return (Z_ERR);
/*
* Check out the new zonepath. This has the side effect of creating
* a directory for the new zonepath. We depend on this later when we
* stat to see if we are doing a cross file system move or not.
*/
if (validate_zonepath(new_zonepath, CMD_MOVE) != Z_OK)
return (Z_ERR);
if ((err = zone_get_zonepath(target_zone, zonepath, sizeof (zonepath)))
!= Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get zone path"));
return (Z_ERR);
}
if (stat(zonepath, &zonepath_buf) == -1) {
zperror(gettext("could not stat zone path"), B_FALSE);
return (Z_ERR);
}
if (stat(new_zonepath, &new_zonepath_buf) == -1) {
zperror(gettext("could not stat new zone path"), B_FALSE);
return (Z_ERR);
}
/*
* Check if the destination directory is empty.
*/
if ((dirp = opendir(new_zonepath)) == NULL) {
zperror(gettext("could not open new zone path"), B_FALSE);
return (Z_ERR);
}
while ((dp = readdir(dirp)) != (struct dirent *)0) {
if (strcmp(dp->d_name, ".") == 0 ||
strcmp(dp->d_name, "..") == 0)
continue;
empty = B_FALSE;
break;
}
(void) closedir(dirp);
/* Error if there is anything in the destination directory. */
if (!empty) {
(void) fprintf(stderr, gettext("could not move zone to %s: "
"directory not empty\n"), new_zonepath);
return (Z_ERR);
}
/*
* Collect information about mounts within the zone's zonepath.
* Overlay mounts on the zone's root directory are erroneous.
* Bail if we encounter any unexpected mounts.
*/
if (zone_mounts_init(&mounts, zonepath) != 0)
return (Z_ERR);
if (mounts.num_root_overlay_mounts != 0) {
zerror(gettext("%d overlay mount(s) detected on %s/root."),
mounts.num_root_overlay_mounts, zonepath);
goto err_and_mounts_destroy;
}
if (mounts.num_unexpected_mounts != 0)
goto err_and_mounts_destroy;
/*
* Check if we are moving in the same file system and can do a fast
* move or if we are crossing file systems and have to copy the data.
*/
fast = (zonepath_buf.st_dev == new_zonepath_buf.st_dev);
if ((handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_MOVE), B_TRUE);
goto err_and_mounts_destroy;
}
if ((err = zonecfg_get_handle(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_MOVE), B_TRUE);
goto err_and_fini_handle;
}
if (zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in progress."),
"zoneadm");
goto err_and_fini_handle;
}
/*
* Unmount the zone's root filesystem before we move the zone's
* zonepath.
*/
if (zone_unmount_rootfs(&mounts, zonepath, B_FALSE) != 0)
goto err_and_rele_lockfile;
/*
* We're making some file system changes now so we have to clean up
* the file system before we are done. This will either clean up the
* new zonepath if the zonecfg update failed or it will clean up the
* old zonepath if everything is ok.
*/
revert = B_TRUE;
if (is_zonepath_zfs(zonepath) &&
move_zfs(zonepath, new_zonepath) != Z_ERR) {
is_zfs = B_TRUE;
} else if (fast) {
/* same file system, use rename for a quick move */
/*
* Remove the new_zonepath directory that got created above
* during the validation. It gets in the way of the rename.
*/
if (rmdir(new_zonepath) != 0) {
zperror(gettext("could not rmdir new zone path"),
B_FALSE);
(void) zone_mount_rootfs(&mounts, zonepath);
goto err_and_rele_lockfile;
}
if (rename(zonepath, new_zonepath) != 0) {
/*
* If this fails we don't need to do all of the
* cleanup that happens for the rest of the code
* so just return from this error.
*/
zperror(gettext("could not move zone"), B_FALSE);
(void) zone_mount_rootfs(&mounts, zonepath);
goto err_and_rele_lockfile;
}
} else {
/*
* Attempt to create a ZFS fs for the new zonepath. As usual,
* we don't care if this works or not since we always have the
* default behavior of a simple directory for the zonepath.
*/
create_zfs_zonepath(new_zonepath);
(void) printf(gettext(
"Moving across file systems; copying zonepath %s..."),
zonepath);
(void) fflush(stdout);
err = copy_zone(zonepath, new_zonepath);
(void) printf("\n");
if (err != Z_OK)
goto done;
}
/*
* Mount the zone's root filesystem in the new zonepath if there was
* a root mount prior to the move.
*/
if (zone_mount_rootfs(&mounts, new_zonepath) != 0) {
err = Z_ERR;
goto done;
}
root_fs_mounted = B_TRUE;
if ((err = zonecfg_set_zonepath(handle, new_zonepath)) != Z_OK) {
errno = err;
zperror(gettext("could not set new zonepath"), B_TRUE);
goto done;
}
if ((err = zonecfg_save(handle)) != Z_OK) {
errno = err;
zperror(gettext("zonecfg save failed"), B_TRUE);
goto done;
}
revert = B_FALSE;
done:
zonecfg_fini_handle(handle);
zonecfg_release_lock_file(target_zone, lockfd);
/*
* Clean up the file system based on how things went. We either
* clean up the new zonepath if the operation failed for some reason
* or we clean up the old zonepath if everything is ok.
*/
if (revert) {
/*
* Check for the unlikely scenario in which the zone's
* zonepath and its root file system moved but libzonecfg
* couldn't save the new zonepath to the zone's configuration
* file. The mounted root filesystem must be unmounted before
* zoneadm restores the zone's zonepath.
*/
if (root_fs_mounted && zone_unmount_rootfs(&mounts,
new_zonepath, B_TRUE) != 0) {
/*
* We can't forcibly unmount the zone's root file system
* from the new zonepath. Bail!
*/
zerror(gettext("fatal error: cannot unmount %s/root\n"),
new_zonepath);
goto err_and_mounts_destroy;
}
/* The zonecfg update failed, cleanup the new zonepath. */
if (is_zfs) {
if (move_zfs(new_zonepath, zonepath) == Z_ERR) {
(void) fprintf(stderr, gettext("could not "
"restore zonepath, the zfs mountpoint is "
"set as:\n%s\n"), new_zonepath);
/*
* err is already != Z_OK since we're reverting
*/
} else {
(void) zone_mount_rootfs(&mounts, zonepath);
}
} else if (fast) {
if (rename(new_zonepath, zonepath) != 0) {
zperror(gettext("could not restore zonepath"),
B_FALSE);
/*
* err is already != Z_OK since we're reverting
*/
} else {
(void) zone_mount_rootfs(&mounts, zonepath);
}
} else {
(void) printf(gettext("Cleaning up zonepath %s..."),
new_zonepath);
(void) fflush(stdout);
err = cleanup_zonepath(new_zonepath, B_TRUE);
(void) printf("\n");
if (err != Z_OK) {
errno = err;
zperror(gettext("could not remove new "
"zonepath"), B_TRUE);
} else {
/*
* Because we're reverting we know the mainline
* code failed but we just reused the err
* variable so we reset it back to Z_ERR.
*/
err = Z_ERR;
}
(void) zone_mount_rootfs(&mounts, zonepath);
}
} else {
/* The move was successful, cleanup the old zonepath. */
if (!is_zfs && !fast) {
(void) printf(
gettext("Cleaning up zonepath %s..."), zonepath);
(void) fflush(stdout);
err = cleanup_zonepath(zonepath, B_TRUE);
(void) printf("\n");
if (err != Z_OK) {
errno = err;
zperror(gettext("could not remove zonepath"),
B_TRUE);
}
}
}
zone_mounts_destroy(&mounts);
return ((err == Z_OK) ? Z_OK : Z_ERR);
err_and_rele_lockfile:
zonecfg_release_lock_file(target_zone, lockfd);
err_and_fini_handle:
zonecfg_fini_handle(handle);
err_and_mounts_destroy:
zone_mounts_destroy(&mounts);
return (Z_ERR);
}
/* ARGSUSED */
static int
detach_func(int argc, char *argv[])
{
int lockfd = -1;
int err, arg;
char zonepath[MAXPATHLEN];
char cmdbuf[MAXPATHLEN];
char precmdbuf[MAXPATHLEN];
boolean_t execute = B_TRUE;
boolean_t brand_help = B_FALSE;
brand_handle_t bh = NULL;
int status;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot detach zone in alternate root"));
return (Z_ERR);
}
/* Check the argv string for args we handle internally */
optind = 0;
opterr = 0;
while ((arg = getopt(argc, argv, "?n")) != EOF) {
switch (arg) {
case '?':
if (optopt == '?') {
sub_usage(SHELP_DETACH, CMD_DETACH);
brand_help = B_TRUE;
}
/* Ignore unknown options - may be brand specific. */
break;
case 'n':
execute = B_FALSE;
break;
default:
/* Ignore unknown options - may be brand specific. */
break;
}
}
if (brand_help)
execute = B_FALSE;
if (execute) {
if (sanity_check(target_zone, CMD_DETACH, B_FALSE, B_TRUE,
B_FALSE) != Z_OK)
return (Z_ERR);
if (verify_details(CMD_DETACH, argv) != Z_OK)
return (Z_ERR);
} else {
/*
* We want a dry-run to work for a non-privileged user so we
* only do minimal validation.
*/
if (target_zone == NULL) {
zerror(gettext("no zone specified"));
return (Z_ERR);
}
if (strcmp(target_zone, GLOBAL_ZONENAME) == 0) {
zerror(gettext("%s operation is invalid for the "
"global zone."), cmd_to_str(CMD_DETACH));
return (Z_ERR);
}
}
if ((err = zone_get_zonepath(target_zone, zonepath, sizeof (zonepath)))
!= Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get zone path"));
return (Z_ERR);
}
/* Fetch the detach and predetach hooks from the brand configuration. */
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
return (Z_ERR);
}
if (get_hook(bh, cmdbuf, sizeof (cmdbuf), brand_get_detach, target_zone,
zonepath) != Z_OK) {
zerror("invalid brand configuration: missing detach resource");
brand_close(bh);
return (Z_ERR);
}
if (get_hook(bh, precmdbuf, sizeof (precmdbuf), brand_get_predetach,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing predetach "
"resource");
brand_close(bh);
return (Z_ERR);
}
brand_close(bh);
/* Append all options to predetach hook. */
if (addoptions(precmdbuf, argv, sizeof (precmdbuf)) != Z_OK)
return (Z_ERR);
/* Append all options to detach hook. */
if (addoptions(cmdbuf, argv, sizeof (cmdbuf)) != Z_OK)
return (Z_ERR);
if (execute && zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in progress."),
"zoneadm");
return (Z_ERR);
}
/* If we have a brand predetach hook, run it. */
if (!brand_help && precmdbuf[0] != '\0') {
status = do_subproc(precmdbuf);
if (subproc_status(gettext("brand-specific predetach"),
status, B_FALSE) != ZONE_SUBPROC_OK) {
if (execute) {
assert(lockfd >= 0);
zonecfg_release_lock_file(target_zone, lockfd);
lockfd = -1;
}
assert(lockfd == -1);
return (Z_ERR);
}
}
if (cmdbuf[0] != '\0') {
/* Run the detach hook */
status = do_subproc(cmdbuf);
if ((status = subproc_status(gettext("brand-specific detach"),
status, B_FALSE)) != ZONE_SUBPROC_OK) {
if (status == ZONE_SUBPROC_USAGE && !brand_help)
sub_usage(SHELP_DETACH, CMD_DETACH);
if (execute) {
assert(lockfd >= 0);
zonecfg_release_lock_file(target_zone, lockfd);
lockfd = -1;
}
assert(lockfd == -1);
return (Z_ERR);
}
} else {
zone_dochandle_t handle;
/* If just help, we're done since there is no brand help. */
if (brand_help) {
assert(lockfd == -1);
return (Z_OK);
}
/*
* Run the built-in detach support. Just generate a simple
* zone definition XML file and detach.
*/
/* Don't detach the zone if anything is still mounted there */
if (execute && zonecfg_find_mounts(zonepath, NULL, NULL)) {
(void) fprintf(stderr, gettext("These file systems are "
"mounted on subdirectories of %s.\n"), zonepath);
(void) zonecfg_find_mounts(zonepath, zfm_print, NULL);
err = ZONE_SUBPROC_NOTCOMPLETE;
goto done;
}
if ((handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_DETACH), B_TRUE);
err = ZONE_SUBPROC_NOTCOMPLETE;
goto done;
}
if ((err = zonecfg_get_handle(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_DETACH), B_TRUE);
} else if ((err = zonecfg_detach_save(handle,
(execute ? 0 : ZONE_DRY_RUN))) != Z_OK) {
errno = err;
zperror(gettext("saving the detach manifest failed"),
B_TRUE);
}
zonecfg_fini_handle(handle);
if (err != Z_OK)
goto done;
}
/*
* Set the zone state back to configured unless we are running with the
* no-execute option.
*/
if (execute && (err = zone_set_state(target_zone,
ZONE_STATE_CONFIGURED)) != Z_OK) {
errno = err;
zperror(gettext("could not reset state"), B_TRUE);
}
done:
if (execute) {
assert(lockfd >= 0);
zonecfg_release_lock_file(target_zone, lockfd);
lockfd = -1;
}
assert(lockfd == -1);
return ((err == Z_OK) ? Z_OK : Z_ERR);
}
/*
* Determine the brand when doing a dry-run attach. The zone does not have to
* exist, so we have to read the incoming manifest to determine the zone's
* brand.
*
* Because the manifest has to be processed twice; once to determine the brand
* and once to do the brand-specific attach logic, we always read it into a tmp
* file. This handles the manifest coming from stdin or a regular file. The
* tmpname parameter returns the name of the temporary file that the manifest
* was read into.
*/
static int
dryrun_get_brand(char *manifest_path, char *tmpname, int size)
{
int fd;
int err;
int res = Z_OK;
zone_dochandle_t local_handle;
zone_dochandle_t rem_handle = NULL;
int len;
int ofd;
char buf[512];
if (strcmp(manifest_path, "-") == 0) {
fd = STDIN_FILENO;
} else {
if ((fd = open(manifest_path, O_RDONLY)) < 0) {
if (getcwd(buf, sizeof (buf)) == NULL)
(void) strlcpy(buf, "/", sizeof (buf));
zerror(gettext("could not open manifest path %s%s: %s"),
(*manifest_path == '/' ? "" : buf), manifest_path,
strerror(errno));
return (Z_ERR);
}
}
(void) snprintf(tmpname, size, "/var/run/zone.%d", getpid());
if ((ofd = open(tmpname, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR)) < 0) {
zperror(gettext("could not save manifest"), B_FALSE);
(void) close(fd);
return (Z_ERR);
}
while ((len = read(fd, buf, sizeof (buf))) > 0) {
if (write(ofd, buf, len) == -1) {
zperror(gettext("could not save manifest"), B_FALSE);
(void) close(ofd);
(void) close(fd);
return (Z_ERR);
}
}
if (close(ofd) != 0) {
zperror(gettext("could not save manifest"), B_FALSE);
(void) close(fd);
return (Z_ERR);
}
(void) close(fd);
if ((fd = open(tmpname, O_RDONLY)) < 0) {
zperror(gettext("could not open manifest path"), B_FALSE);
return (Z_ERR);
}
if ((local_handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_ATTACH), B_TRUE);
res = Z_ERR;
goto done;
}
if ((rem_handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_ATTACH), B_TRUE);
res = Z_ERR;
goto done;
}
if ((err = zonecfg_attach_manifest(fd, local_handle, rem_handle))
!= Z_OK) {
res = Z_ERR;
if (err == Z_INVALID_DOCUMENT) {
struct stat st;
char buf[6];
if (strcmp(manifest_path, "-") == 0) {
zerror(gettext("Input is not a valid XML "
"file"));
goto done;
}
if (fstat(fd, &st) == -1 || !S_ISREG(st.st_mode)) {
zerror(gettext("%s is not an XML file"),
manifest_path);
goto done;
}
bzero(buf, sizeof (buf));
(void) lseek(fd, 0L, SEEK_SET);
if (read(fd, buf, sizeof (buf) - 1) < 0 ||
strncmp(buf, "<?xml", 5) != 0)
zerror(gettext("%s is not an XML file"),
manifest_path);
else
zerror(gettext("Cannot attach to an earlier "
"release of the operating system"));
} else {
zperror(cmd_to_str(CMD_ATTACH), B_TRUE);
}
goto done;
}
/* Retrieve remote handle brand type. */
if (zonecfg_get_brand(rem_handle, target_brand, sizeof (target_brand))
!= Z_OK) {
zerror(gettext("missing or invalid brand"));
exit(Z_ERR);
}
done:
zonecfg_fini_handle(local_handle);
zonecfg_fini_handle(rem_handle);
(void) close(fd);
return ((res == Z_OK) ? Z_OK : Z_ERR);
}
/* ARGSUSED */
static int
attach_func(int argc, char *argv[])
{
int lockfd = -1;
int err, arg;
boolean_t force = B_FALSE;
zone_dochandle_t handle;
char zonepath[MAXPATHLEN];
char cmdbuf[MAXPATHLEN];
char postcmdbuf[MAXPATHLEN];
boolean_t execute = B_TRUE;
boolean_t brand_help = B_FALSE;
char *manifest_path;
char tmpmanifest[80];
int manifest_pos;
brand_handle_t bh = NULL;
int status;
int last_index = 0;
int offset;
char *up;
boolean_t forced_update = B_FALSE;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot attach zone in alternate root"));
return (Z_ERR);
}
/* Check the argv string for args we handle internally */
optind = 0;
opterr = 0;
while ((arg = getopt(argc, argv, "?Fn:U")) != EOF) {
switch (arg) {
case '?':
if (optopt == '?') {
sub_usage(SHELP_ATTACH, CMD_ATTACH);
brand_help = B_TRUE;
}
/* Ignore unknown options - may be brand specific. */
break;
case 'F':
force = B_TRUE;
break;
case 'n':
execute = B_FALSE;
manifest_path = optarg;
manifest_pos = optind - 1;
break;
case 'U':
/*
* Undocumented 'force update' option for p2v update on
* attach when zone is in the incomplete state. Change
* the option back to 'u' and set forced_update flag.
*/
if (optind == last_index)
offset = optind;
else
offset = optind - 1;
if ((up = index(argv[offset], 'U')) != NULL)
*up = 'u';
forced_update = B_TRUE;
break;
default:
/* Ignore unknown options - may be brand specific. */
break;
}
last_index = optind;
}
if (brand_help) {
force = B_FALSE;
execute = B_TRUE;
}
/* dry-run and force flags are mutually exclusive */
if (!execute && force) {
zerror(gettext("-F and -n flags are mutually exclusive"));
return (Z_ERR);
}
/*
* If the no-execute option was specified, we don't do validation and
* need to figure out the brand, since there is no zone required to be
* configured for this option.
*/
if (execute) {
if (!brand_help) {
if (sanity_check(target_zone, CMD_ATTACH, B_FALSE,
B_TRUE, forced_update) != Z_OK)
return (Z_ERR);
if (verify_details(CMD_ATTACH, argv) != Z_OK)
return (Z_ERR);
}
if ((err = zone_get_zonepath(target_zone, zonepath,
sizeof (zonepath))) != Z_OK) {
errno = err;
zperror2(target_zone,
gettext("could not get zone path"));
return (Z_ERR);
}
} else {
if (dryrun_get_brand(manifest_path, tmpmanifest,
sizeof (tmpmanifest)) != Z_OK)
return (Z_ERR);
argv[manifest_pos] = tmpmanifest;
target_zone = "-";
(void) strlcpy(zonepath, "-", sizeof (zonepath));
/* Run the brand's verify_adm hook. */
if (verify_brand(NULL, CMD_ATTACH, argv) != Z_OK)
return (Z_ERR);
}
/*
* Fetch the attach and postattach hooks from the brand configuration.
*/
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
return (Z_ERR);
}
if (get_hook(bh, cmdbuf, sizeof (cmdbuf), brand_get_attach, target_zone,
zonepath) != Z_OK) {
zerror("invalid brand configuration: missing attach resource");
brand_close(bh);
return (Z_ERR);
}
if (get_hook(bh, postcmdbuf, sizeof (postcmdbuf), brand_get_postattach,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing postattach "
"resource");
brand_close(bh);
return (Z_ERR);
}
brand_close(bh);
/* Append all options to attach hook. */
if (addoptions(cmdbuf, argv, sizeof (cmdbuf)) != Z_OK)
return (Z_ERR);
/* Append all options to postattach hook. */
if (addoptions(postcmdbuf, argv, sizeof (postcmdbuf)) != Z_OK)
return (Z_ERR);
if (execute && !brand_help) {
if (zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in "
"progress."), "zoneadm");
return (Z_ERR);
}
}
if (!force) {
/*
* Not a force-attach, so we need to actually do the work.
*/
if (cmdbuf[0] != '\0') {
/* Run the attach hook */
status = do_subproc(cmdbuf);
if ((status = subproc_status(gettext("brand-specific "
"attach"), status, B_FALSE)) != ZONE_SUBPROC_OK) {
if (status == ZONE_SUBPROC_USAGE && !brand_help)
sub_usage(SHELP_ATTACH, CMD_ATTACH);
if (execute && !brand_help) {
assert(zonecfg_lock_file_held(&lockfd));
zonecfg_release_lock_file(target_zone,
lockfd);
lockfd = -1;
}
assert(lockfd == -1);
return (Z_ERR);
}
}
/*
* Else run the built-in attach support.
* This is a no-op since there is nothing to validate.
*/
/* If dry-run or help, then we're done. */
if (!execute || brand_help) {
if (!execute)
(void) unlink(tmpmanifest);
assert(lockfd == -1);
return (Z_OK);
}
}
/* Now we can validate that the zonepath exists. */
if (validate_zonepath(zonepath, CMD_ATTACH) != Z_OK) {
(void) fprintf(stderr, gettext("could not verify zonepath %s "
"because of the above errors.\n"), zonepath);
assert(zonecfg_lock_file_held(&lockfd));
zonecfg_release_lock_file(target_zone, lockfd);
return (Z_ERR);
}
if ((handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_ATTACH), B_TRUE);
err = Z_ERR;
} else if ((err = zonecfg_get_handle(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_ATTACH), B_TRUE);
zonecfg_fini_handle(handle);
} else {
zonecfg_rm_detached(handle, force);
zonecfg_fini_handle(handle);
}
if (err == Z_OK &&
(err = zone_set_state(target_zone, ZONE_STATE_INSTALLED)) != Z_OK) {
errno = err;
zperror(gettext("could not reset state"), B_TRUE);
}
assert(zonecfg_lock_file_held(&lockfd));
zonecfg_release_lock_file(target_zone, lockfd);
lockfd = -1;
/* If we have a brand postattach hook, run it. */
if (err == Z_OK && !force && postcmdbuf[0] != '\0') {
status = do_subproc(postcmdbuf);
if (subproc_status(gettext("brand-specific postattach"),
status, B_FALSE) != ZONE_SUBPROC_OK) {
if ((err = zone_set_state(target_zone,
ZONE_STATE_CONFIGURED)) != Z_OK) {
errno = err;
zperror(gettext("could not reset state"),
B_TRUE);
}
}
}
assert(lockfd == -1);
return ((err == Z_OK) ? Z_OK : Z_ERR);
}
/*
* On input, TRUE => yes, FALSE => no.
* On return, TRUE => 1, FALSE => 0, could not ask => -1.
*/
static int
ask_yesno(boolean_t default_answer, const char *question)
{
char line[64]; /* should be large enough to answer yes or no */
if (!isatty(STDIN_FILENO))
return (-1);
for (;;) {
(void) printf("%s (%s)? ", question,
default_answer ? "[y]/n" : "y/[n]");
if (fgets(line, sizeof (line), stdin) == NULL ||
line[0] == '\n')
return (default_answer ? 1 : 0);
if (tolower(line[0]) == 'y')
return (1);
if (tolower(line[0]) == 'n')
return (0);
}
}
/* ARGSUSED */
static int
uninstall_func(int argc, char *argv[])
{
char line[ZONENAME_MAX + 128]; /* Enough for "Are you sure ..." */
char rootpath[MAXPATHLEN], zonepath[MAXPATHLEN];
char cmdbuf[MAXPATHLEN];
char precmdbuf[MAXPATHLEN];
boolean_t force = B_FALSE;
int lockfd, answer;
int err, arg;
boolean_t brand_help = B_FALSE;
brand_handle_t bh = NULL;
int status;
if (zonecfg_in_alt_root()) {
zerror(gettext("cannot uninstall zone in alternate root"));
return (Z_ERR);
}
/* Check the argv string for args we handle internally */
optind = 0;
opterr = 0;
while ((arg = getopt(argc, argv, "?F")) != EOF) {
switch (arg) {
case '?':
if (optopt == '?') {
sub_usage(SHELP_UNINSTALL, CMD_UNINSTALL);
brand_help = B_TRUE;
}
/* Ignore unknown options - may be brand specific. */
break;
case 'F':
force = B_TRUE;
break;
default:
/* Ignore unknown options - may be brand specific. */
break;
}
}
if (!brand_help) {
if (sanity_check(target_zone, CMD_UNINSTALL, B_FALSE, B_TRUE,
B_FALSE) != Z_OK)
return (Z_ERR);
/*
* Invoke brand-specific handler.
*/
if (invoke_brand_handler(CMD_UNINSTALL, argv) != Z_OK)
return (Z_ERR);
if (!force) {
(void) snprintf(line, sizeof (line),
gettext("Are you sure you want to %s zone %s"),
cmd_to_str(CMD_UNINSTALL), target_zone);
if ((answer = ask_yesno(B_FALSE, line)) == 0) {
return (Z_OK);
} else if (answer == -1) {
zerror(gettext("Input not from terminal and -F "
"not specified: %s not done."),
cmd_to_str(CMD_UNINSTALL));
return (Z_ERR);
}
}
}
if ((err = zone_get_zonepath(target_zone, zonepath,
sizeof (zonepath))) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get zone path"));
return (Z_ERR);
}
/*
* Fetch the uninstall and preuninstall hooks from the brand
* configuration.
*/
if ((bh = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand"));
return (Z_ERR);
}
if (get_hook(bh, cmdbuf, sizeof (cmdbuf), brand_get_uninstall,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing uninstall "
"resource");
brand_close(bh);
return (Z_ERR);
}
if (get_hook(bh, precmdbuf, sizeof (precmdbuf), brand_get_preuninstall,
target_zone, zonepath) != Z_OK) {
zerror("invalid brand configuration: missing preuninstall "
"resource");
brand_close(bh);
return (Z_ERR);
}
brand_close(bh);
/* Append all options to preuninstall hook. */
if (addoptions(precmdbuf, argv, sizeof (precmdbuf)) != Z_OK)
return (Z_ERR);
/* Append all options to uninstall hook. */
if (addoptions(cmdbuf, argv, sizeof (cmdbuf)) != Z_OK)
return (Z_ERR);
if (!brand_help) {
if ((err = zone_get_rootpath(target_zone, rootpath,
sizeof (rootpath))) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not get root "
"path"));
return (Z_ERR);
}
/*
* If there seems to be a zoneadmd running for this zone, call
* it to tell it that an uninstall is happening; if all goes
* well it will then shut itself down.
*/
if (zonecfg_ping_zoneadmd(target_zone) == Z_OK) {
zone_cmd_arg_t zarg;
zarg.cmd = Z_NOTE_UNINSTALLING;
/* we don't care too much if this fails, just plow on */
(void) zonecfg_call_zoneadmd(target_zone, &zarg, locale,
B_TRUE);
}
if (zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in "
"progress."), "zoneadm");
return (Z_ERR);
}
/* Don't uninstall the zone if anything is mounted there */
err = zonecfg_find_mounts(rootpath, NULL, NULL);
if (err) {
zerror(gettext("These file systems are mounted on "
"subdirectories of %s.\n"), rootpath);
(void) zonecfg_find_mounts(rootpath, zfm_print, NULL);
zonecfg_release_lock_file(target_zone, lockfd);
return (Z_ERR);
}
}
/* If we have a brand preuninstall hook, run it. */
if (!brand_help && precmdbuf[0] != '\0') {
status = do_subproc(precmdbuf);
if (subproc_status(gettext("brand-specific preuninstall"),
status, B_FALSE) != ZONE_SUBPROC_OK) {
zonecfg_release_lock_file(target_zone, lockfd);
return (Z_ERR);
}
}
if (!brand_help) {
err = zone_set_state(target_zone, ZONE_STATE_INCOMPLETE);
if (err != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
goto bad;
}
}
/*
* If there is a brand uninstall hook, use it, otherwise use the
* built-in uninstall code.
*/
if (cmdbuf[0] != '\0') {
/* Run the uninstall hook */
status = do_subproc(cmdbuf);
if ((status = subproc_status(gettext("brand-specific "
"uninstall"), status, B_FALSE)) != ZONE_SUBPROC_OK) {
if (status == ZONE_SUBPROC_USAGE && !brand_help)
sub_usage(SHELP_UNINSTALL, CMD_UNINSTALL);
if (!brand_help)
zonecfg_release_lock_file(target_zone, lockfd);
return (Z_ERR);
}
if (brand_help)
return (Z_OK);
} else {
/* If just help, we're done since there is no brand help. */
if (brand_help)
return (Z_OK);
/* Run the built-in uninstall support. */
if ((err = cleanup_zonepath(zonepath, B_FALSE)) != Z_OK) {
errno = err;
zperror2(target_zone, gettext("cleaning up zonepath "
"failed"));
goto bad;
}
}
err = zone_set_state(target_zone, ZONE_STATE_CONFIGURED);
if (err != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not reset state"));
}
bad:
zonecfg_release_lock_file(target_zone, lockfd);
return (err);
}
/* ARGSUSED */
static int
mount_func(int argc, char *argv[])
{
zone_cmd_arg_t zarg;
boolean_t force = B_FALSE;
int arg;
/*
* The only supported subargument to the "mount" subcommand is
* "-f", which forces us to mount a zone in the INCOMPLETE state.
*/
optind = 0;
if ((arg = getopt(argc, argv, "f")) != EOF) {
switch (arg) {
case 'f':
force = B_TRUE;
break;
default:
return (Z_USAGE);
}
}
if (argc > optind)
return (Z_USAGE);
if (sanity_check(target_zone, CMD_MOUNT, B_FALSE, B_FALSE, force)
!= Z_OK)
return (Z_ERR);
if (verify_details(CMD_MOUNT, argv) != Z_OK)
return (Z_ERR);
zarg.cmd = force ? Z_FORCEMOUNT : Z_MOUNT;
zarg.bootbuf[0] = '\0';
if (zonecfg_call_zoneadmd(target_zone, &zarg, locale, B_TRUE) != 0) {
zerror(gettext("call to %s failed"), "zoneadmd");
return (Z_ERR);
}
return (Z_OK);
}
/* ARGSUSED */
static int
unmount_func(int argc, char *argv[])
{
zone_cmd_arg_t zarg;
if (argc > 0)
return (Z_USAGE);
if (sanity_check(target_zone, CMD_UNMOUNT, B_FALSE, B_FALSE, B_FALSE)
!= Z_OK)
return (Z_ERR);
zarg.cmd = Z_UNMOUNT;
if (zonecfg_call_zoneadmd(target_zone, &zarg, locale, B_TRUE) != 0) {
zerror(gettext("call to %s failed"), "zoneadmd");
return (Z_ERR);
}
return (Z_OK);
}
static int
mark_func(int argc, char *argv[])
{
int err, lockfd;
int arg;
boolean_t force = B_FALSE;
int state;
optind = 0;
opterr = 0;
while ((arg = getopt(argc, argv, "F")) != EOF) {
switch (arg) {
case 'F':
force = B_TRUE;
break;
default:
return (Z_USAGE);
}
}
if (argc != (optind + 1))
return (Z_USAGE);
if (strcmp(argv[optind], "configured") == 0)
state = ZONE_STATE_CONFIGURED;
else if (strcmp(argv[optind], "incomplete") == 0)
state = ZONE_STATE_INCOMPLETE;
else if (strcmp(argv[optind], "installed") == 0)
state = ZONE_STATE_INSTALLED;
else
return (Z_USAGE);
if (state != ZONE_STATE_INCOMPLETE && !force)
return (Z_USAGE);
if (sanity_check(target_zone, CMD_MARK, B_FALSE, B_TRUE, B_FALSE)
!= Z_OK)
return (Z_ERR);
/*
* Invoke brand-specific handler.
*/
if (invoke_brand_handler(CMD_MARK, argv) != Z_OK)
return (Z_ERR);
if (zonecfg_grab_lock_file(target_zone, &lockfd) != Z_OK) {
zerror(gettext("another %s may have an operation in progress."),
"zoneadm");
return (Z_ERR);
}
err = zone_set_state(target_zone, state);
if (err != Z_OK) {
errno = err;
zperror2(target_zone, gettext("could not set state"));
}
zonecfg_release_lock_file(target_zone, lockfd);
return (err);
}
/*
* Check what scheduling class we're running under and print a warning if
* we're not using FSS.
*/
static int
check_sched_fss(zone_dochandle_t handle)
{
char class_name[PC_CLNMSZ];
if (zonecfg_get_dflt_sched_class(handle, class_name,
sizeof (class_name)) != Z_OK) {
zerror(gettext("WARNING: unable to determine the zone's "
"scheduling class"));
} else if (strcmp("FSS", class_name) != 0) {
zerror(gettext("WARNING: The zone.cpu-shares rctl is set but\n"
"FSS is not the default scheduling class for this zone. "
"FSS will be\nused for processes in the zone but to get "
"the full benefit of FSS,\nit should be the default "
"scheduling class. See dispadmin(1M) for\nmore details."));
return (Z_SYSTEM);
}
return (Z_OK);
}
static int
check_cpu_shares_sched(zone_dochandle_t handle)
{
int err;
int res = Z_OK;
struct zone_rctltab rctl;
if ((err = zonecfg_setrctlent(handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_APPLY), B_TRUE);
return (err);
}
while (zonecfg_getrctlent(handle, &rctl) == Z_OK) {
if (strcmp(rctl.zone_rctl_name, "zone.cpu-shares") == 0) {
if (check_sched_fss(handle) != Z_OK)
res = Z_SYSTEM;
break;
}
}
(void) zonecfg_endrctlent(handle);
return (res);
}
/*
* Check if there is a mix of processes running in different pools within the
* zone. This is currently only going to be called for the global zone from
* apply_func but that could be generalized in the future.
*/
static boolean_t
mixed_pools(zoneid_t zoneid)
{
DIR *dirp;
dirent_t *dent;
boolean_t mixed = B_FALSE;
boolean_t poolid_set = B_FALSE;
poolid_t last_poolid = 0;
if ((dirp = opendir("/proc")) == NULL) {
zerror(gettext("could not open /proc"));
return (B_FALSE);
}
while ((dent = readdir(dirp)) != NULL) {
int procfd;
psinfo_t ps;
char procpath[MAXPATHLEN];
if (dent->d_name[0] == '.')
continue;
(void) snprintf(procpath, sizeof (procpath), "/proc/%s/psinfo",
dent->d_name);
if ((procfd = open(procpath, O_RDONLY)) == -1)
continue;
if (read(procfd, &ps, sizeof (ps)) == sizeof (psinfo_t)) {
/* skip processes in other zones and system processes */
if (zoneid != ps.pr_zoneid || ps.pr_flag & SSYS) {
(void) close(procfd);
continue;
}
if (poolid_set) {
if (ps.pr_poolid != last_poolid)
mixed = B_TRUE;
} else {
last_poolid = ps.pr_poolid;
poolid_set = B_TRUE;
}
}
(void) close(procfd);
if (mixed)
break;
}
(void) closedir(dirp);
return (mixed);
}
/*
* Check if a persistent or temporary pool is configured for the zone.
* This is currently only going to be called for the global zone from
* apply_func but that could be generalized in the future.
*/
static boolean_t
pool_configured(zone_dochandle_t handle)
{
int err1, err2;
struct zone_psettab pset_tab;
char poolname[MAXPATHLEN];
err1 = zonecfg_lookup_pset(handle, &pset_tab);
err2 = zonecfg_get_pool(handle, poolname, sizeof (poolname));
if (err1 == Z_NO_ENTRY &&
(err2 == Z_NO_ENTRY || (err2 == Z_OK && strlen(poolname) == 0)))
return (B_FALSE);
return (B_TRUE);
}
/*
* This is an undocumented interface which is currently only used to apply
* the global zone resource management settings when the system boots.
* This function does not yet properly handle updating a running system so
* any projects running in the zone would be trashed if this function
* were to run after the zone had booted. It also does not reset any
* rctl settings that were removed from zonecfg. There is still work to be
* done before we can properly support dynamically updating the resource
* management settings for a running zone (global or non-global). Thus, this
* functionality is undocumented for now.
*/
/* ARGSUSED */
static int
apply_func(int argc, char *argv[])
{
int err;
int res = Z_OK;
priv_set_t *privset;
zoneid_t zoneid;
zone_dochandle_t handle;
struct zone_mcaptab mcap;
char pool_err[128];
zoneid = getzoneid();
if (zonecfg_in_alt_root() || zoneid != GLOBAL_ZONEID ||
target_zone == NULL || strcmp(target_zone, GLOBAL_ZONENAME) != 0)
return (usage(B_FALSE));
if ((privset = priv_allocset()) == NULL) {
zerror(gettext("%s failed"), "priv_allocset");
return (Z_ERR);
}
if (getppriv(PRIV_EFFECTIVE, privset) != 0) {
zerror(gettext("%s failed"), "getppriv");
priv_freeset(privset);
return (Z_ERR);
}
if (priv_isfullset(privset) == B_FALSE) {
(void) usage(B_FALSE);
priv_freeset(privset);
return (Z_ERR);
}
priv_freeset(privset);
if ((handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_APPLY), B_TRUE);
return (Z_ERR);
}
if ((err = zonecfg_get_handle(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_APPLY), B_TRUE);
zonecfg_fini_handle(handle);
return (Z_ERR);
}
/* specific error msgs are printed within apply_rctls */
if ((err = zonecfg_apply_rctls(target_zone, handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_APPLY), B_TRUE);
res = Z_ERR;
}
if ((err = check_cpu_shares_sched(handle)) != Z_OK)
res = Z_ERR;
if (pool_configured(handle)) {
if (mixed_pools(zoneid)) {
zerror(gettext("Zone is using multiple resource "
"pools. The pool\nconfiguration cannot be "
"applied without rebooting."));
res = Z_ERR;
} else {
/*
* The next two blocks of code attempt to set up
* temporary pools as well as persistent pools. In
* both cases we call the functions unconditionally.
* Within each funtion the code will check if the zone
* is actually configured for a temporary pool or
* persistent pool and just return if there is nothing
* to do.
*/
if ((err = zonecfg_bind_tmp_pool(handle, zoneid,
pool_err, sizeof (pool_err))) != Z_OK) {
if (err == Z_POOL || err == Z_POOL_CREATE ||
err == Z_POOL_BIND)
zerror("%s: %s", zonecfg_strerror(err),
pool_err);
else
zerror(gettext("could not bind zone to "
"temporary pool: %s"),
zonecfg_strerror(err));
res = Z_ERR;
}
if ((err = zonecfg_bind_pool(handle, zoneid, pool_err,
sizeof (pool_err))) != Z_OK) {
if (err == Z_POOL || err == Z_POOL_BIND)
zerror("%s: %s", zonecfg_strerror(err),
pool_err);
else
zerror("%s", zonecfg_strerror(err));
}
}
}
/*
* If a memory cap is configured, set the cap in the kernel using
* zone_setattr() and make sure the rcapd SMF service is enabled.
*/
if (zonecfg_getmcapent(handle, &mcap) == Z_OK) {
uint64_t num;
char smf_err[128];
num = (uint64_t)strtoll(mcap.zone_physmem_cap, NULL, 10);
if (zone_setattr(zoneid, ZONE_ATTR_PHYS_MCAP, &num, 0) == -1) {
zerror(gettext("could not set zone memory cap"));
res = Z_ERR;
}
if (zonecfg_enable_rcapd(smf_err, sizeof (smf_err)) != Z_OK) {
zerror(gettext("enabling system/rcap service failed: "
"%s"), smf_err);
res = Z_ERR;
}
}
zonecfg_fini_handle(handle);
return (res);
}
/*
* This is an undocumented interface that is invoked by the zones SMF service
* for installed zones that won't automatically boot.
*/
/* ARGSUSED */
static int
sysboot_func(int argc, char *argv[])
{
int err;
zone_dochandle_t zone_handle;
brand_handle_t brand_handle;
char cmdbuf[MAXPATHLEN];
char zonepath[MAXPATHLEN];
/*
* This subcommand can only be executed in the global zone on non-global
* zones.
*/
if (zonecfg_in_alt_root())
return (usage(B_FALSE));
if (sanity_check(target_zone, CMD_SYSBOOT, B_FALSE, B_TRUE, B_FALSE) !=
Z_OK)
return (Z_ERR);
/*
* Fetch the sysboot hook from the target zone's brand.
*/
if ((zone_handle = zonecfg_init_handle()) == NULL) {
zperror(cmd_to_str(CMD_SYSBOOT), B_TRUE);
return (Z_ERR);
}
if ((err = zonecfg_get_handle(target_zone, zone_handle)) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_SYSBOOT), B_TRUE);
zonecfg_fini_handle(zone_handle);
return (Z_ERR);
}
if ((err = zonecfg_get_zonepath(zone_handle, zonepath,
sizeof (zonepath))) != Z_OK) {
errno = err;
zperror(cmd_to_str(CMD_SYSBOOT), B_TRUE);
zonecfg_fini_handle(zone_handle);
return (Z_ERR);
}
if ((brand_handle = brand_open(target_brand)) == NULL) {
zerror(gettext("missing or invalid brand during %s operation: "
"%s"), cmd_to_str(CMD_SYSBOOT), target_brand);
zonecfg_fini_handle(zone_handle);
return (Z_ERR);
}
err = get_hook(brand_handle, cmdbuf, sizeof (cmdbuf), brand_get_sysboot,
target_zone, zonepath);
brand_close(brand_handle);
zonecfg_fini_handle(zone_handle);
if (err != Z_OK) {
zerror(gettext("unable to get brand hook from brand %s for %s "
"operation"), target_brand, cmd_to_str(CMD_SYSBOOT));
return (Z_ERR);
}
/*
* If the hook wasn't defined (which is OK), then indicate success and
* return. Otherwise, execute the hook.
*/
if (cmdbuf[0] != '\0')
return ((subproc_status(gettext("brand sysboot operation"),
do_subproc(cmdbuf), B_FALSE) == ZONE_SUBPROC_OK) ? Z_OK :
Z_BRAND_ERROR);
return (Z_OK);
}
static int
help_func(int argc, char *argv[])
{
int arg, cmd_num;
if (argc == 0) {
(void) usage(B_TRUE);
return (Z_OK);
}
optind = 0;
if ((arg = getopt(argc, argv, "?")) != EOF) {
switch (arg) {
case '?':
sub_usage(SHELP_HELP, CMD_HELP);
return (optopt == '?' ? Z_OK : Z_USAGE);
default:
sub_usage(SHELP_HELP, CMD_HELP);
return (Z_USAGE);
}
}
while (optind < argc) {
/* Private commands have NULL short_usage; omit them */
if ((cmd_num = cmd_match(argv[optind])) < 0 ||
cmdtab[cmd_num].short_usage == NULL) {
sub_usage(SHELP_HELP, CMD_HELP);
return (Z_USAGE);
}
sub_usage(cmdtab[cmd_num].short_usage, cmd_num);
optind++;
}
return (Z_OK);
}
/*
* Returns: CMD_MIN thru CMD_MAX on success, -1 on error
*/
static int
cmd_match(char *cmd)
{
int i;
for (i = CMD_MIN; i <= CMD_MAX; i++) {
/* return only if there is an exact match */
if (strcmp(cmd, cmdtab[i].cmd_name) == 0)
return (cmdtab[i].cmd_num);
}
return (-1);
}
static int
parse_and_run(int argc, char *argv[])
{
int i = cmd_match(argv[0]);
if (i < 0)
return (usage(B_FALSE));
return (cmdtab[i].handler(argc - 1, &(argv[1])));
}
static char *
get_execbasename(char *execfullname)
{
char *last_slash, *execbasename;
/* guard against '/' at end of command invocation */
for (;;) {
last_slash = strrchr(execfullname, '/');
if (last_slash == NULL) {
execbasename = execfullname;
break;
} else {
execbasename = last_slash + 1;
if (*execbasename == '\0') {
*last_slash = '\0';
continue;
}
break;
}
}
return (execbasename);
}
int
main(int argc, char **argv)
{
int arg;
zoneid_t zid;
struct stat st;
char *zone_lock_env;
int err;
if ((locale = setlocale(LC_ALL, "")) == NULL)
locale = "C";
(void) textdomain(TEXT_DOMAIN);
setbuf(stdout, NULL);
(void) sigset(SIGHUP, SIG_IGN);
execname = get_execbasename(argv[0]);
target_zone = NULL;
if (chdir("/") != 0) {
zerror(gettext("could not change directory to /."));
exit(Z_ERR);
}
/*
* Use the default system mask rather than anything that may have been
* set by the caller.
*/
(void) umask(CMASK);
if (init_zfs() != Z_OK)
exit(Z_ERR);
while ((arg = getopt(argc, argv, "?u:z:R:")) != EOF) {
switch (arg) {
case '?':
return (usage(B_TRUE));
case 'u':
target_uuid = optarg;
break;
case 'z':
target_zone = optarg;
break;
case 'R': /* private option for admin/install use */
if (*optarg != '/') {
zerror(gettext("root path must be absolute."));
exit(Z_ERR);
}
if (stat(optarg, &st) == -1 || !S_ISDIR(st.st_mode)) {
zerror(
gettext("root path must be a directory."));
exit(Z_ERR);
}
zonecfg_set_root(optarg);
break;
default:
return (usage(B_FALSE));
}
}
if (optind >= argc)
return (usage(B_FALSE));
if (target_uuid != NULL && *target_uuid != '\0') {
uuid_t uuid;
static char newtarget[ZONENAME_MAX];
if (uuid_parse(target_uuid, uuid) == -1) {
zerror(gettext("illegal UUID value specified"));
exit(Z_ERR);
}
if (zonecfg_get_name_by_uuid(uuid, newtarget,
sizeof (newtarget)) == Z_OK)
target_zone = newtarget;
}
if (target_zone != NULL && zone_get_id(target_zone, &zid) != 0) {
errno = Z_NO_ZONE;
zperror(target_zone, B_TRUE);
exit(Z_ERR);
}
/*
* See if we have inherited the right to manipulate this zone from
* a zoneadm instance in our ancestry. If so, set zone_lock_cnt to
* indicate it. If not, make that explicit in our environment.
*/
zonecfg_init_lock_file(target_zone, &zone_lock_env);
/* Figure out what the system's default brand is */
if (zonecfg_default_brand(default_brand,
sizeof (default_brand)) != Z_OK) {
zerror(gettext("unable to determine default brand"));
return (Z_ERR);
}
/*
* If we are going to be operating on a single zone, retrieve its
* brand type and determine whether it is native or not.
*/
if ((target_zone != NULL) &&
(strcmp(target_zone, GLOBAL_ZONENAME) != 0)) {
if (zone_get_brand(target_zone, target_brand,
sizeof (target_brand)) != Z_OK) {
zerror(gettext("missing or invalid brand"));
exit(Z_ERR);
}
/*
* In the alternate root environment, the only supported
* operations are mount and unmount. In this case, just treat
* the zone as native if it is cluster. Cluster zones can be
* native for the purpose of LU or upgrade, and the cluster
* brand may not exist in the miniroot (such as in net install
* upgrade).
*/
if (strcmp(target_brand, CLUSTER_BRAND_NAME) == 0) {
if (zonecfg_in_alt_root()) {
(void) strlcpy(target_brand, default_brand,
sizeof (target_brand));
}
}
}
err = parse_and_run(argc - optind, &argv[optind]);
return (err);
}