freebsd-dev/sys/geom/vinum/geom_vinum_rename.c
Pedro F. Giffuni 3728855a0f sys/geom: adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:17:37 +00:00

264 lines
7.2 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2005 Chris Jones
* All rights reserved.
*
* This software was developed for the FreeBSD Project by Chris Jones
* thanks to the support of Google's Summer of Code program and
* mentoring by Lukas Ertl.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/libkern.h>
#include <sys/malloc.h>
#include <geom/geom.h>
#include <geom/vinum/geom_vinum_var.h>
#include <geom/vinum/geom_vinum.h>
void
gv_rename(struct g_geom *gp, struct gctl_req *req)
{
struct gv_softc *sc;
struct gv_volume *v;
struct gv_plex *p;
struct gv_sd *s;
struct gv_drive *d;
char *newname, *object, *name;
int *flags, type;
sc = gp->softc;
flags = gctl_get_paraml(req, "flags", sizeof(*flags));
if (flags == NULL) {
gctl_error(req, "no flags given");
return;
}
newname = gctl_get_param(req, "newname", NULL);
if (newname == NULL) {
gctl_error(req, "no new name given");
return;
}
object = gctl_get_param(req, "object", NULL);
if (object == NULL) {
gctl_error(req, "no object given");
return;
}
type = gv_object_type(sc, object);
switch (type) {
case GV_TYPE_VOL:
v = gv_find_vol(sc, object);
if (v == NULL) {
gctl_error(req, "unknown volume '%s'", object);
return;
}
name = g_malloc(GV_MAXVOLNAME, M_WAITOK | M_ZERO);
strlcpy(name, newname, GV_MAXVOLNAME);
gv_post_event(sc, GV_EVENT_RENAME_VOL, v, name, *flags, 0);
break;
case GV_TYPE_PLEX:
p = gv_find_plex(sc, object);
if (p == NULL) {
gctl_error(req, "unknown plex '%s'", object);
return;
}
name = g_malloc(GV_MAXPLEXNAME, M_WAITOK | M_ZERO);
strlcpy(name, newname, GV_MAXPLEXNAME);
gv_post_event(sc, GV_EVENT_RENAME_PLEX, p, name, *flags, 0);
break;
case GV_TYPE_SD:
s = gv_find_sd(sc, object);
if (s == NULL) {
gctl_error(req, "unknown subdisk '%s'", object);
return;
}
name = g_malloc(GV_MAXSDNAME, M_WAITOK | M_ZERO);
strlcpy(name, newname, GV_MAXSDNAME);
gv_post_event(sc, GV_EVENT_RENAME_SD, s, name, *flags, 0);
break;
case GV_TYPE_DRIVE:
d = gv_find_drive(sc, object);
if (d == NULL) {
gctl_error(req, "unknown drive '%s'", object);
return;
}
name = g_malloc(GV_MAXDRIVENAME, M_WAITOK | M_ZERO);
strlcpy(name, newname, GV_MAXDRIVENAME);
gv_post_event(sc, GV_EVENT_RENAME_DRIVE, d, name, *flags, 0);
break;
default:
gctl_error(req, "unknown object '%s'", object);
return;
}
}
int
gv_rename_drive(struct gv_softc *sc, struct gv_drive *d, char *newname,
int flags)
{
struct gv_sd *s;
KASSERT(d != NULL, ("gv_rename_drive: NULL d"));
if (gv_object_type(sc, newname) != GV_ERR_NOTFOUND) {
G_VINUM_DEBUG(1, "drive name '%s' already in use", newname);
return (GV_ERR_NAMETAKEN);
}
strlcpy(d->name, newname, sizeof(d->name));
if (d->hdr != NULL)
strlcpy(d->hdr->label.name, newname, sizeof(d->hdr->label.name));
LIST_FOREACH(s, &d->subdisks, from_drive)
strlcpy(s->drive, d->name, sizeof(s->drive));
return (0);
}
int
gv_rename_plex(struct gv_softc *sc, struct gv_plex *p, char *newname, int flags)
{
char newsd[GV_MAXSDNAME];
struct gv_sd *s;
char *ptr;
int err;
KASSERT(p != NULL, ("gv_rename_plex: NULL p"));
if (gv_object_type(sc, newname) != GV_ERR_NOTFOUND) {
G_VINUM_DEBUG(1, "plex name '%s' already in use", newname);
return (GV_ERR_NAMETAKEN);
}
/*
* Locate the plex number part of the plex names.
* XXX: might be a good idea to sanitize input a bit more
*/
ptr = strrchr(newname, '.');
if (ptr == NULL) {
G_VINUM_DEBUG(0, "proposed plex name '%s' is not a valid plex "
"name", newname);
return (GV_ERR_INVNAME);
}
strlcpy(p->name, newname, sizeof(p->name));
/* Fix up references and potentially rename subdisks. */
LIST_FOREACH(s, &p->subdisks, in_plex) {
strlcpy(s->plex, p->name, sizeof(s->plex));
if (flags & GV_FLAG_R) {
/*
* Look for the two last dots in the string, and assume
* that the old value was ok.
*/
ptr = strrchr(s->name, '.');
if (ptr == NULL)
return (GV_ERR_INVNAME);
ptr++;
snprintf(newsd, sizeof(newsd), "%s.%s", p->name, ptr);
err = gv_rename_sd(sc, s, newsd, flags);
if (err)
return (err);
}
}
return (0);
}
/*
* gv_rename_sd: renames a subdisk. Note that the 'flags' argument is ignored,
* since there are no structures below a subdisk. Similarly, we don't have to
* clean up any references elsewhere to the subdisk's name.
*/
int
gv_rename_sd(struct gv_softc *sc, struct gv_sd *s, char *newname, int flags)
{
char *dot1, *dot2;
KASSERT(s != NULL, ("gv_rename_sd: NULL s"));
if (gv_object_type(sc, newname) != GV_ERR_NOTFOUND) {
G_VINUM_DEBUG(1, "subdisk name %s already in use", newname);
return (GV_ERR_NAMETAKEN);
}
/* Locate the sd number part of the sd names. */
dot1 = strchr(newname, '.');
if (dot1 == NULL || (dot2 = strchr(dot1 + 1, '.')) == NULL) {
G_VINUM_DEBUG(0, "proposed sd name '%s' is not a valid sd name",
newname);
return (GV_ERR_INVNAME);
}
strlcpy(s->name, newname, sizeof(s->name));
return (0);
}
int
gv_rename_vol(struct gv_softc *sc, struct gv_volume *v, char *newname,
int flags)
{
struct g_provider *pp;
struct gv_plex *p;
char newplex[GV_MAXPLEXNAME], *ptr;
int err;
KASSERT(v != NULL, ("gv_rename_vol: NULL v"));
pp = v->provider;
KASSERT(pp != NULL, ("gv_rename_vol: NULL pp"));
if (gv_object_type(sc, newname) != GV_ERR_NOTFOUND) {
G_VINUM_DEBUG(1, "volume name %s already in use", newname);
return (GV_ERR_NAMETAKEN);
}
/* Rename the volume. */
strlcpy(v->name, newname, sizeof(v->name));
/* Fix up references and potentially rename plexes. */
LIST_FOREACH(p, &v->plexes, in_volume) {
strlcpy(p->volume, v->name, sizeof(p->volume));
if (flags & GV_FLAG_R) {
/*
* Look for the last dot in the string, and assume that
* the old value was ok.
*/
ptr = strrchr(p->name, '.');
ptr++;
snprintf(newplex, sizeof(newplex), "%s.%s", v->name, ptr);
err = gv_rename_plex(sc, p, newplex, flags);
if (err)
return (err);
}
}
return (0);
}