3728855a0f
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.
613 lines
17 KiB
C
613 lines
17 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2007 Lukas Ertl
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* Copyright (c) 2007, 2009 Ulf Lilleengen
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bio.h>
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#include <sys/conf.h>
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#include <sys/jail.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/systm.h>
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#include <geom/geom.h>
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#include <geom/vinum/geom_vinum_var.h>
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#include <geom/vinum/geom_vinum.h>
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#define DEFAULT_STRIPESIZE 262144
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/*
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* Create a new drive object, either by user request, during taste of the drive
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* itself, or because it was referenced by a subdisk during taste.
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*/
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int
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gv_create_drive(struct gv_softc *sc, struct gv_drive *d)
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{
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struct g_geom *gp;
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struct g_provider *pp;
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struct g_consumer *cp, *cp2;
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struct gv_drive *d2;
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struct gv_hdr *hdr;
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struct gv_freelist *fl;
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KASSERT(d != NULL, ("gv_create_drive: NULL d"));
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gp = sc->geom;
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pp = NULL;
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cp = cp2 = NULL;
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/* The drive already has a consumer if it was tasted before. */
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if (d->consumer != NULL) {
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cp = d->consumer;
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cp->private = d;
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pp = cp->provider;
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} else if (!(d->flags & GV_DRIVE_REFERENCED)) {
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if (gv_find_drive(sc, d->name) != NULL) {
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G_VINUM_DEBUG(0, "drive '%s' already exists", d->name);
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g_free(d);
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return (GV_ERR_CREATE);
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}
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if (gv_find_drive_device(sc, d->device) != NULL) {
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G_VINUM_DEBUG(0, "provider '%s' already in use by "
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"gvinum", d->device);
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return (GV_ERR_CREATE);
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}
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pp = g_provider_by_name(d->device);
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if (pp == NULL) {
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G_VINUM_DEBUG(0, "create '%s': device '%s' disappeared",
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d->name, d->device);
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g_free(d);
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return (GV_ERR_CREATE);
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}
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g_topology_lock();
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cp = g_new_consumer(gp);
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if (g_attach(cp, pp) != 0) {
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g_destroy_consumer(cp);
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g_topology_unlock();
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G_VINUM_DEBUG(0, "create drive '%s': unable to attach",
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d->name);
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g_free(d);
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return (GV_ERR_CREATE);
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}
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g_topology_unlock();
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d->consumer = cp;
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cp->private = d;
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}
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/*
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* If this was just a "referenced" drive, we're almost finished, but
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* insert this drive not on the head of the drives list, as
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* gv_drive_is_newer() expects a "real" drive from LIST_FIRST().
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*/
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if (d->flags & GV_DRIVE_REFERENCED) {
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snprintf(d->device, sizeof(d->device), "???");
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d2 = LIST_FIRST(&sc->drives);
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if (d2 == NULL)
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LIST_INSERT_HEAD(&sc->drives, d, drive);
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else
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LIST_INSERT_AFTER(d2, d, drive);
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return (0);
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}
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/*
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* Update access counts of the new drive to those of an already
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* existing drive.
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*/
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LIST_FOREACH(d2, &sc->drives, drive) {
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if ((d == d2) || (d2->consumer == NULL))
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continue;
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cp2 = d2->consumer;
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g_topology_lock();
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if ((cp2->acr || cp2->acw || cp2->ace) &&
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(g_access(cp, cp2->acr, cp2->acw, cp2->ace) != 0)) {
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g_detach(cp);
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g_destroy_consumer(cp);
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g_topology_unlock();
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G_VINUM_DEBUG(0, "create drive '%s': unable to update "
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"access counts", d->name);
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if (d->hdr != NULL)
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g_free(d->hdr);
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g_free(d);
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return (GV_ERR_CREATE);
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}
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g_topology_unlock();
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break;
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}
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d->size = pp->mediasize - GV_DATA_START;
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d->avail = d->size;
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d->vinumconf = sc;
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LIST_INIT(&d->subdisks);
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LIST_INIT(&d->freelist);
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/* The header might have been set during taste. */
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if (d->hdr == NULL) {
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hdr = g_malloc(sizeof(*hdr), M_WAITOK | M_ZERO);
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hdr->magic = GV_MAGIC;
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hdr->config_length = GV_CFG_LEN;
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getcredhostname(NULL, hdr->label.sysname, GV_HOSTNAME_LEN);
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strlcpy(hdr->label.name, d->name, sizeof(hdr->label.name));
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microtime(&hdr->label.date_of_birth);
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d->hdr = hdr;
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}
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/* We also need a freelist entry. */
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fl = g_malloc(sizeof(struct gv_freelist), M_WAITOK | M_ZERO);
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fl->offset = GV_DATA_START;
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fl->size = d->avail;
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LIST_INSERT_HEAD(&d->freelist, fl, freelist);
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d->freelist_entries = 1;
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if (gv_find_drive(sc, d->name) == NULL)
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LIST_INSERT_HEAD(&sc->drives, d, drive);
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gv_set_drive_state(d, GV_DRIVE_UP, 0);
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return (0);
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}
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int
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gv_create_volume(struct gv_softc *sc, struct gv_volume *v)
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{
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KASSERT(v != NULL, ("gv_create_volume: NULL v"));
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v->vinumconf = sc;
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v->flags |= GV_VOL_NEWBORN;
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LIST_INIT(&v->plexes);
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LIST_INSERT_HEAD(&sc->volumes, v, volume);
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v->wqueue = g_malloc(sizeof(struct bio_queue_head), M_WAITOK | M_ZERO);
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bioq_init(v->wqueue);
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return (0);
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}
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int
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gv_create_plex(struct gv_softc *sc, struct gv_plex *p)
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{
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struct gv_volume *v;
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KASSERT(p != NULL, ("gv_create_plex: NULL p"));
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/* Find the volume this plex should be attached to. */
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v = gv_find_vol(sc, p->volume);
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if (v == NULL) {
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G_VINUM_DEBUG(0, "create plex '%s': volume '%s' not found",
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p->name, p->volume);
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g_free(p);
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return (GV_ERR_CREATE);
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}
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if (!(v->flags & GV_VOL_NEWBORN))
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p->flags |= GV_PLEX_ADDED;
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p->vol_sc = v;
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v->plexcount++;
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p->vinumconf = sc;
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p->synced = 0;
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p->flags |= GV_PLEX_NEWBORN;
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LIST_INSERT_HEAD(&v->plexes, p, in_volume);
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LIST_INIT(&p->subdisks);
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TAILQ_INIT(&p->packets);
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LIST_INSERT_HEAD(&sc->plexes, p, plex);
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p->bqueue = g_malloc(sizeof(struct bio_queue_head), M_WAITOK | M_ZERO);
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bioq_init(p->bqueue);
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p->wqueue = g_malloc(sizeof(struct bio_queue_head), M_WAITOK | M_ZERO);
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bioq_init(p->wqueue);
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p->rqueue = g_malloc(sizeof(struct bio_queue_head), M_WAITOK | M_ZERO);
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bioq_init(p->rqueue);
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return (0);
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}
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int
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gv_create_sd(struct gv_softc *sc, struct gv_sd *s)
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{
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struct gv_plex *p;
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struct gv_drive *d;
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KASSERT(s != NULL, ("gv_create_sd: NULL s"));
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/* Find the drive where this subdisk should be put on. */
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d = gv_find_drive(sc, s->drive);
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if (d == NULL) {
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/*
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* It's possible that the subdisk references a drive that
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* doesn't exist yet (during the taste process), so create a
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* practically empty "referenced" drive.
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*/
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if (s->flags & GV_SD_TASTED) {
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d = g_malloc(sizeof(struct gv_drive),
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M_WAITOK | M_ZERO);
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d->flags |= GV_DRIVE_REFERENCED;
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strlcpy(d->name, s->drive, sizeof(d->name));
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gv_create_drive(sc, d);
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} else {
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G_VINUM_DEBUG(0, "create sd '%s': drive '%s' not found",
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s->name, s->drive);
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g_free(s);
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return (GV_ERR_CREATE);
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}
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}
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/* Find the plex where this subdisk belongs to. */
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p = gv_find_plex(sc, s->plex);
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if (p == NULL) {
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G_VINUM_DEBUG(0, "create sd '%s': plex '%s' not found",
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s->name, s->plex);
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g_free(s);
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return (GV_ERR_CREATE);
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}
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/*
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* First we give the subdisk to the drive, to handle autosized
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* values ...
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*/
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if (gv_sd_to_drive(s, d) != 0) {
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g_free(s);
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return (GV_ERR_CREATE);
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}
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/*
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* Then, we give the subdisk to the plex; we check if the
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* given values are correct and maybe adjust them.
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*/
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if (gv_sd_to_plex(s, p) != 0) {
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G_VINUM_DEBUG(0, "unable to give sd '%s' to plex '%s'",
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s->name, p->name);
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if (s->drive_sc && !(s->drive_sc->flags & GV_DRIVE_REFERENCED))
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LIST_REMOVE(s, from_drive);
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gv_free_sd(s);
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g_free(s);
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/*
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* If this subdisk can't be created, we won't create
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* the attached plex either, if it is also a new one.
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*/
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if (!(p->flags & GV_PLEX_NEWBORN))
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return (GV_ERR_CREATE);
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gv_rm_plex(sc, p);
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return (GV_ERR_CREATE);
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}
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s->flags |= GV_SD_NEWBORN;
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s->vinumconf = sc;
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LIST_INSERT_HEAD(&sc->subdisks, s, sd);
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return (0);
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}
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/*
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* Create a concatenated volume from specified drives or drivegroups.
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*/
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void
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gv_concat(struct g_geom *gp, struct gctl_req *req)
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{
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struct gv_drive *d;
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struct gv_sd *s;
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struct gv_volume *v;
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struct gv_plex *p;
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struct gv_softc *sc;
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char *drive, buf[30], *vol;
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int *drives, dcount;
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sc = gp->softc;
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dcount = 0;
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vol = gctl_get_param(req, "name", NULL);
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if (vol == NULL) {
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gctl_error(req, "volume name not given");
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return;
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}
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drives = gctl_get_paraml(req, "drives", sizeof(*drives));
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if (drives == NULL) {
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gctl_error(req, "drive names not given");
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return;
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}
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/* First we create the volume. */
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v = g_malloc(sizeof(*v), M_WAITOK | M_ZERO);
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strlcpy(v->name, vol, sizeof(v->name));
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v->state = GV_VOL_UP;
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gv_post_event(sc, GV_EVENT_CREATE_VOLUME, v, NULL, 0, 0);
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/* Then we create the plex. */
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p = g_malloc(sizeof(*p), M_WAITOK | M_ZERO);
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snprintf(p->name, sizeof(p->name), "%s.p%d", v->name, v->plexcount);
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strlcpy(p->volume, v->name, sizeof(p->volume));
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p->org = GV_PLEX_CONCAT;
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p->stripesize = 0;
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gv_post_event(sc, GV_EVENT_CREATE_PLEX, p, NULL, 0, 0);
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/* Drives are first (right now) priority */
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for (dcount = 0; dcount < *drives; dcount++) {
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snprintf(buf, sizeof(buf), "drive%d", dcount);
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drive = gctl_get_param(req, buf, NULL);
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d = gv_find_drive(sc, drive);
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if (d == NULL) {
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gctl_error(req, "No such drive '%s'", drive);
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continue;
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}
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s = g_malloc(sizeof(*s), M_WAITOK | M_ZERO);
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snprintf(s->name, sizeof(s->name), "%s.s%d", p->name, dcount);
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strlcpy(s->plex, p->name, sizeof(s->plex));
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strlcpy(s->drive, drive, sizeof(s->drive));
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s->plex_offset = -1;
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s->drive_offset = -1;
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s->size = -1;
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gv_post_event(sc, GV_EVENT_CREATE_SD, s, NULL, 0, 0);
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}
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gv_post_event(sc, GV_EVENT_SETUP_OBJECTS, sc, NULL, 0, 0);
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gv_post_event(sc, GV_EVENT_SAVE_CONFIG, sc, NULL, 0, 0);
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}
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/*
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* Create a mirrored volume from specified drives or drivegroups.
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*/
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void
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gv_mirror(struct g_geom *gp, struct gctl_req *req)
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{
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struct gv_drive *d;
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struct gv_sd *s;
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struct gv_volume *v;
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struct gv_plex *p;
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struct gv_softc *sc;
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char *drive, buf[30], *vol;
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int *drives, *flags, dcount, pcount, scount;
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sc = gp->softc;
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dcount = 0;
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scount = 0;
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pcount = 0;
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vol = gctl_get_param(req, "name", NULL);
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if (vol == NULL) {
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gctl_error(req, "volume name not given");
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return;
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}
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flags = gctl_get_paraml(req, "flags", sizeof(*flags));
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drives = gctl_get_paraml(req, "drives", sizeof(*drives));
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if (drives == NULL) {
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gctl_error(req, "drive names not given");
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return;
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}
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/* We must have an even number of drives. */
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if (*drives % 2 != 0) {
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gctl_error(req, "mirror organization must have an even number "
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"of drives");
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return;
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}
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if (*flags & GV_FLAG_S && *drives < 4) {
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gctl_error(req, "must have at least 4 drives for striped plex");
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return;
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}
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/* First we create the volume. */
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v = g_malloc(sizeof(*v), M_WAITOK | M_ZERO);
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strlcpy(v->name, vol, sizeof(v->name));
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v->state = GV_VOL_UP;
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gv_post_event(sc, GV_EVENT_CREATE_VOLUME, v, NULL, 0, 0);
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/* Then we create the plexes. */
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for (pcount = 0; pcount < 2; pcount++) {
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p = g_malloc(sizeof(*p), M_WAITOK | M_ZERO);
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snprintf(p->name, sizeof(p->name), "%s.p%d", v->name,
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pcount);
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strlcpy(p->volume, v->name, sizeof(p->volume));
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if (*flags & GV_FLAG_S) {
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p->org = GV_PLEX_STRIPED;
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p->stripesize = DEFAULT_STRIPESIZE;
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} else {
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p->org = GV_PLEX_CONCAT;
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p->stripesize = -1;
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}
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gv_post_event(sc, GV_EVENT_CREATE_PLEX, p, NULL, 0, 0);
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/*
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* We just gives each even drive to plex one, and each odd to
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* plex two.
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*/
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scount = 0;
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for (dcount = pcount; dcount < *drives; dcount += 2) {
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snprintf(buf, sizeof(buf), "drive%d", dcount);
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drive = gctl_get_param(req, buf, NULL);
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d = gv_find_drive(sc, drive);
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if (d == NULL) {
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gctl_error(req, "No such drive '%s', aborting",
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drive);
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scount++;
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break;
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}
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s = g_malloc(sizeof(*s), M_WAITOK | M_ZERO);
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snprintf(s->name, sizeof(s->name), "%s.s%d", p->name,
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scount);
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strlcpy(s->plex, p->name, sizeof(s->plex));
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strlcpy(s->drive, drive, sizeof(s->drive));
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s->plex_offset = -1;
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s->drive_offset = -1;
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s->size = -1;
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gv_post_event(sc, GV_EVENT_CREATE_SD, s, NULL, 0, 0);
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scount++;
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}
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}
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gv_post_event(sc, GV_EVENT_SETUP_OBJECTS, sc, NULL, 0, 0);
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gv_post_event(sc, GV_EVENT_SAVE_CONFIG, sc, NULL, 0, 0);
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}
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void
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gv_raid5(struct g_geom *gp, struct gctl_req *req)
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{
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struct gv_softc *sc;
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struct gv_drive *d;
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struct gv_volume *v;
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|
struct gv_plex *p;
|
|
struct gv_sd *s;
|
|
int *drives, *flags, dcount;
|
|
char *vol, *drive, buf[30];
|
|
off_t *stripesize;
|
|
|
|
sc = gp->softc;
|
|
|
|
vol = gctl_get_param(req, "name", NULL);
|
|
if (vol == NULL) {
|
|
gctl_error(req, "volume name not given");
|
|
return;
|
|
}
|
|
flags = gctl_get_paraml(req, "flags", sizeof(*flags));
|
|
drives = gctl_get_paraml(req, "drives", sizeof(*drives));
|
|
stripesize = gctl_get_paraml(req, "stripesize", sizeof(*stripesize));
|
|
|
|
if (stripesize == NULL) {
|
|
gctl_error(req, "no stripesize given");
|
|
return;
|
|
}
|
|
|
|
if (drives == NULL) {
|
|
gctl_error(req, "drive names not given");
|
|
return;
|
|
}
|
|
|
|
/* We must have at least three drives. */
|
|
if (*drives < 3) {
|
|
gctl_error(req, "must have at least three drives for this "
|
|
"plex organisation");
|
|
return;
|
|
}
|
|
/* First we create the volume. */
|
|
v = g_malloc(sizeof(*v), M_WAITOK | M_ZERO);
|
|
strlcpy(v->name, vol, sizeof(v->name));
|
|
v->state = GV_VOL_UP;
|
|
gv_post_event(sc, GV_EVENT_CREATE_VOLUME, v, NULL, 0, 0);
|
|
|
|
/* Then we create the plex. */
|
|
p = g_malloc(sizeof(*p), M_WAITOK | M_ZERO);
|
|
snprintf(p->name, sizeof(p->name), "%s.p%d", v->name, v->plexcount);
|
|
strlcpy(p->volume, v->name, sizeof(p->volume));
|
|
p->org = GV_PLEX_RAID5;
|
|
p->stripesize = *stripesize;
|
|
gv_post_event(sc, GV_EVENT_CREATE_PLEX, p, NULL, 0, 0);
|
|
|
|
/* Create subdisks on drives. */
|
|
for (dcount = 0; dcount < *drives; dcount++) {
|
|
snprintf(buf, sizeof(buf), "drive%d", dcount);
|
|
drive = gctl_get_param(req, buf, NULL);
|
|
d = gv_find_drive(sc, drive);
|
|
if (d == NULL) {
|
|
gctl_error(req, "No such drive '%s'", drive);
|
|
continue;
|
|
}
|
|
s = g_malloc(sizeof(*s), M_WAITOK | M_ZERO);
|
|
snprintf(s->name, sizeof(s->name), "%s.s%d", p->name, dcount);
|
|
strlcpy(s->plex, p->name, sizeof(s->plex));
|
|
strlcpy(s->drive, drive, sizeof(s->drive));
|
|
s->plex_offset = -1;
|
|
s->drive_offset = -1;
|
|
s->size = -1;
|
|
gv_post_event(sc, GV_EVENT_CREATE_SD, s, NULL, 0, 0);
|
|
}
|
|
gv_post_event(sc, GV_EVENT_SETUP_OBJECTS, sc, NULL, 0, 0);
|
|
gv_post_event(sc, GV_EVENT_SAVE_CONFIG, sc, NULL, 0, 0);
|
|
}
|
|
|
|
/*
|
|
* Create a striped volume from specified drives or drivegroups.
|
|
*/
|
|
void
|
|
gv_stripe(struct g_geom *gp, struct gctl_req *req)
|
|
{
|
|
struct gv_drive *d;
|
|
struct gv_sd *s;
|
|
struct gv_volume *v;
|
|
struct gv_plex *p;
|
|
struct gv_softc *sc;
|
|
char *drive, buf[30], *vol;
|
|
int *drives, *flags, dcount, pcount;
|
|
|
|
sc = gp->softc;
|
|
dcount = 0;
|
|
pcount = 0;
|
|
vol = gctl_get_param(req, "name", NULL);
|
|
if (vol == NULL) {
|
|
gctl_error(req, "volume name not given");
|
|
return;
|
|
}
|
|
flags = gctl_get_paraml(req, "flags", sizeof(*flags));
|
|
drives = gctl_get_paraml(req, "drives", sizeof(*drives));
|
|
|
|
if (drives == NULL) {
|
|
gctl_error(req, "drive names not given");
|
|
return;
|
|
}
|
|
|
|
/* We must have at least two drives. */
|
|
if (*drives < 2) {
|
|
gctl_error(req, "must have at least 2 drives");
|
|
return;
|
|
}
|
|
|
|
/* First we create the volume. */
|
|
v = g_malloc(sizeof(*v), M_WAITOK | M_ZERO);
|
|
strlcpy(v->name, vol, sizeof(v->name));
|
|
v->state = GV_VOL_UP;
|
|
gv_post_event(sc, GV_EVENT_CREATE_VOLUME, v, NULL, 0, 0);
|
|
|
|
/* Then we create the plex. */
|
|
p = g_malloc(sizeof(*p), M_WAITOK | M_ZERO);
|
|
snprintf(p->name, sizeof(p->name), "%s.p%d", v->name, v->plexcount);
|
|
strlcpy(p->volume, v->name, sizeof(p->volume));
|
|
p->org = GV_PLEX_STRIPED;
|
|
p->stripesize = 262144;
|
|
gv_post_event(sc, GV_EVENT_CREATE_PLEX, p, NULL, 0, 0);
|
|
|
|
/* Create subdisks on drives. */
|
|
for (dcount = 0; dcount < *drives; dcount++) {
|
|
snprintf(buf, sizeof(buf), "drive%d", dcount);
|
|
drive = gctl_get_param(req, buf, NULL);
|
|
d = gv_find_drive(sc, drive);
|
|
if (d == NULL) {
|
|
gctl_error(req, "No such drive '%s'", drive);
|
|
continue;
|
|
}
|
|
s = g_malloc(sizeof(*s), M_WAITOK | M_ZERO);
|
|
snprintf(s->name, sizeof(s->name), "%s.s%d", p->name, dcount);
|
|
strlcpy(s->plex, p->name, sizeof(s->plex));
|
|
strlcpy(s->drive, drive, sizeof(s->drive));
|
|
s->plex_offset = -1;
|
|
s->drive_offset = -1;
|
|
s->size = -1;
|
|
gv_post_event(sc, GV_EVENT_CREATE_SD, s, NULL, 0, 0);
|
|
}
|
|
gv_post_event(sc, GV_EVENT_SETUP_OBJECTS, sc, NULL, 0, 0);
|
|
gv_post_event(sc, GV_EVENT_SAVE_CONFIG, sc, NULL, 0, 0);
|
|
}
|