1253 lines
32 KiB
C
1253 lines
32 KiB
C
/*-
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* Copyright (c) 2003, 2004 Silicon Graphics International Corp.
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* Copyright (c) 1997-2007 Kenneth D. Merry
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* Copyright (c) 2012 The FreeBSD Foundation
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* All rights reserved.
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*
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* Portions of this software were developed by Edward Tomasz Napierala
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* under sponsorship from the FreeBSD Foundation.
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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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <sys/linker.h>
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#include <sys/queue.h>
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#include <sys/callout.h>
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#include <sys/sbuf.h>
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#include <sys/capsicum.h>
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#include <assert.h>
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#include <bsdxml.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_message.h>
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#include <cam/ctl/ctl.h>
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#include <cam/ctl/ctl_io.h>
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#include <cam/ctl/ctl_backend.h>
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#include <cam/ctl/ctl_ioctl.h>
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#include <cam/ctl/ctl_util.h>
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#include <cam/ctl/ctl_scsi_all.h>
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#include "ctld.h"
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#ifdef ICL_KERNEL_PROXY
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#include <netdb.h>
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#endif
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extern bool proxy_mode;
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static int ctl_fd = 0;
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void
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kernel_init(void)
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{
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int retval, saved_errno;
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ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
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if (ctl_fd < 0 && errno == ENOENT) {
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saved_errno = errno;
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retval = kldload("ctl");
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if (retval != -1)
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ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
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else
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errno = saved_errno;
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}
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if (ctl_fd < 0)
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log_err(1, "failed to open %s", CTL_DEFAULT_DEV);
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}
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/*
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* Name/value pair used for per-LUN attributes.
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*/
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struct cctl_lun_nv {
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char *name;
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char *value;
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STAILQ_ENTRY(cctl_lun_nv) links;
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};
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/*
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* Backend LUN information.
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*/
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struct cctl_lun {
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uint64_t lun_id;
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char *backend_type;
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uint64_t size_blocks;
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uint32_t blocksize;
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char *serial_number;
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char *device_id;
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char *ctld_name;
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STAILQ_HEAD(,cctl_lun_nv) attr_list;
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STAILQ_ENTRY(cctl_lun) links;
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};
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struct cctl_port {
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uint32_t port_id;
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char *port_name;
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int pp;
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int vp;
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int cfiscsi_state;
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char *cfiscsi_target;
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uint16_t cfiscsi_portal_group_tag;
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char *ctld_portal_group_name;
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STAILQ_HEAD(,cctl_lun_nv) attr_list;
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STAILQ_ENTRY(cctl_port) links;
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};
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struct cctl_devlist_data {
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int num_luns;
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STAILQ_HEAD(,cctl_lun) lun_list;
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struct cctl_lun *cur_lun;
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int num_ports;
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STAILQ_HEAD(,cctl_port) port_list;
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struct cctl_port *cur_port;
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int level;
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struct sbuf *cur_sb[32];
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};
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static void
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cctl_start_element(void *user_data, const char *name, const char **attr)
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{
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int i;
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struct cctl_devlist_data *devlist;
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struct cctl_lun *cur_lun;
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devlist = (struct cctl_devlist_data *)user_data;
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cur_lun = devlist->cur_lun;
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devlist->level++;
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if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
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sizeof(devlist->cur_sb[0])))
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log_errx(1, "%s: too many nesting levels, %zd max", __func__,
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sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
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devlist->cur_sb[devlist->level] = sbuf_new_auto();
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if (devlist->cur_sb[devlist->level] == NULL)
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log_err(1, "%s: unable to allocate sbuf", __func__);
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if (strcmp(name, "lun") == 0) {
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if (cur_lun != NULL)
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log_errx(1, "%s: improper lun element nesting",
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__func__);
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cur_lun = calloc(1, sizeof(*cur_lun));
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if (cur_lun == NULL)
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log_err(1, "%s: cannot allocate %zd bytes", __func__,
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sizeof(*cur_lun));
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devlist->num_luns++;
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devlist->cur_lun = cur_lun;
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STAILQ_INIT(&cur_lun->attr_list);
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STAILQ_INSERT_TAIL(&devlist->lun_list, cur_lun, links);
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for (i = 0; attr[i] != NULL; i += 2) {
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if (strcmp(attr[i], "id") == 0) {
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cur_lun->lun_id = strtoull(attr[i+1], NULL, 0);
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} else {
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log_errx(1, "%s: invalid LUN attribute %s = %s",
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__func__, attr[i], attr[i+1]);
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}
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}
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}
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}
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static void
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cctl_end_element(void *user_data, const char *name)
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{
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struct cctl_devlist_data *devlist;
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struct cctl_lun *cur_lun;
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char *str;
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devlist = (struct cctl_devlist_data *)user_data;
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cur_lun = devlist->cur_lun;
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if ((cur_lun == NULL)
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&& (strcmp(name, "ctllunlist") != 0))
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log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name);
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if (devlist->cur_sb[devlist->level] == NULL)
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log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
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devlist->level, name);
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sbuf_finish(devlist->cur_sb[devlist->level]);
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str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
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if (strlen(str) == 0) {
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free(str);
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str = NULL;
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}
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sbuf_delete(devlist->cur_sb[devlist->level]);
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devlist->cur_sb[devlist->level] = NULL;
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devlist->level--;
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if (strcmp(name, "backend_type") == 0) {
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cur_lun->backend_type = str;
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str = NULL;
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} else if (strcmp(name, "size") == 0) {
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cur_lun->size_blocks = strtoull(str, NULL, 0);
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} else if (strcmp(name, "blocksize") == 0) {
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cur_lun->blocksize = strtoul(str, NULL, 0);
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} else if (strcmp(name, "serial_number") == 0) {
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cur_lun->serial_number = str;
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str = NULL;
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} else if (strcmp(name, "device_id") == 0) {
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cur_lun->device_id = str;
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str = NULL;
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} else if (strcmp(name, "ctld_name") == 0) {
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cur_lun->ctld_name = str;
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str = NULL;
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} else if (strcmp(name, "lun") == 0) {
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devlist->cur_lun = NULL;
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} else if (strcmp(name, "ctllunlist") == 0) {
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/* Nothing. */
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} else {
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struct cctl_lun_nv *nv;
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nv = calloc(1, sizeof(*nv));
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if (nv == NULL)
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log_err(1, "%s: can't allocate %zd bytes for nv pair",
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__func__, sizeof(*nv));
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nv->name = checked_strdup(name);
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nv->value = str;
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str = NULL;
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STAILQ_INSERT_TAIL(&cur_lun->attr_list, nv, links);
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}
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free(str);
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}
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static void
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cctl_start_pelement(void *user_data, const char *name, const char **attr)
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{
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int i;
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struct cctl_devlist_data *devlist;
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struct cctl_port *cur_port;
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devlist = (struct cctl_devlist_data *)user_data;
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cur_port = devlist->cur_port;
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devlist->level++;
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if ((u_int)devlist->level >= (sizeof(devlist->cur_sb) /
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sizeof(devlist->cur_sb[0])))
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log_errx(1, "%s: too many nesting levels, %zd max", __func__,
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sizeof(devlist->cur_sb) / sizeof(devlist->cur_sb[0]));
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devlist->cur_sb[devlist->level] = sbuf_new_auto();
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if (devlist->cur_sb[devlist->level] == NULL)
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log_err(1, "%s: unable to allocate sbuf", __func__);
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if (strcmp(name, "targ_port") == 0) {
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if (cur_port != NULL)
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log_errx(1, "%s: improper port element nesting (%s)",
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__func__, name);
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cur_port = calloc(1, sizeof(*cur_port));
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if (cur_port == NULL)
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log_err(1, "%s: cannot allocate %zd bytes", __func__,
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sizeof(*cur_port));
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devlist->num_ports++;
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devlist->cur_port = cur_port;
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STAILQ_INIT(&cur_port->attr_list);
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STAILQ_INSERT_TAIL(&devlist->port_list, cur_port, links);
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for (i = 0; attr[i] != NULL; i += 2) {
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if (strcmp(attr[i], "id") == 0) {
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cur_port->port_id = strtoul(attr[i+1], NULL, 0);
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} else {
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log_errx(1, "%s: invalid LUN attribute %s = %s",
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__func__, attr[i], attr[i+1]);
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}
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}
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}
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}
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static void
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cctl_end_pelement(void *user_data, const char *name)
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{
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struct cctl_devlist_data *devlist;
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struct cctl_port *cur_port;
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char *str;
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devlist = (struct cctl_devlist_data *)user_data;
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cur_port = devlist->cur_port;
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if ((cur_port == NULL)
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&& (strcmp(name, "ctlportlist") != 0))
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log_errx(1, "%s: cur_port == NULL! (name = %s)", __func__, name);
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if (devlist->cur_sb[devlist->level] == NULL)
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log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
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devlist->level, name);
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sbuf_finish(devlist->cur_sb[devlist->level]);
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str = checked_strdup(sbuf_data(devlist->cur_sb[devlist->level]));
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if (strlen(str) == 0) {
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free(str);
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str = NULL;
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}
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sbuf_delete(devlist->cur_sb[devlist->level]);
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devlist->cur_sb[devlist->level] = NULL;
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devlist->level--;
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if (strcmp(name, "port_name") == 0) {
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cur_port->port_name = str;
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str = NULL;
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} else if (strcmp(name, "physical_port") == 0) {
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cur_port->pp = strtoul(str, NULL, 0);
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} else if (strcmp(name, "virtual_port") == 0) {
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cur_port->vp = strtoul(str, NULL, 0);
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} else if (strcmp(name, "cfiscsi_target") == 0) {
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cur_port->cfiscsi_target = str;
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str = NULL;
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} else if (strcmp(name, "cfiscsi_state") == 0) {
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cur_port->cfiscsi_state = strtoul(str, NULL, 0);
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} else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
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cur_port->cfiscsi_portal_group_tag = strtoul(str, NULL, 0);
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} else if (strcmp(name, "ctld_portal_group_name") == 0) {
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cur_port->ctld_portal_group_name = str;
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str = NULL;
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} else if (strcmp(name, "targ_port") == 0) {
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devlist->cur_port = NULL;
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} else if (strcmp(name, "ctlportlist") == 0) {
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/* Nothing. */
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} else {
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struct cctl_lun_nv *nv;
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nv = calloc(1, sizeof(*nv));
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if (nv == NULL)
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log_err(1, "%s: can't allocate %zd bytes for nv pair",
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__func__, sizeof(*nv));
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nv->name = checked_strdup(name);
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nv->value = str;
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str = NULL;
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STAILQ_INSERT_TAIL(&cur_port->attr_list, nv, links);
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}
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free(str);
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}
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static void
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cctl_char_handler(void *user_data, const XML_Char *str, int len)
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{
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struct cctl_devlist_data *devlist;
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devlist = (struct cctl_devlist_data *)user_data;
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sbuf_bcat(devlist->cur_sb[devlist->level], str, len);
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}
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|
|
struct conf *
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conf_new_from_kernel(void)
|
|
{
|
|
struct conf *conf = NULL;
|
|
struct target *targ;
|
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struct portal_group *pg;
|
|
struct pport *pp;
|
|
struct port *cp;
|
|
struct lun *cl;
|
|
struct lun_option *lo;
|
|
struct ctl_lun_list list;
|
|
struct cctl_devlist_data devlist;
|
|
struct cctl_lun *lun;
|
|
struct cctl_port *port;
|
|
XML_Parser parser;
|
|
char *str, *name;
|
|
int len, retval;
|
|
|
|
bzero(&devlist, sizeof(devlist));
|
|
STAILQ_INIT(&devlist.lun_list);
|
|
STAILQ_INIT(&devlist.port_list);
|
|
|
|
log_debugx("obtaining previously configured CTL luns from the kernel");
|
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|
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str = NULL;
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len = 4096;
|
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retry:
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str = realloc(str, len);
|
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if (str == NULL)
|
|
log_err(1, "realloc");
|
|
|
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bzero(&list, sizeof(list));
|
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list.alloc_len = len;
|
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list.status = CTL_LUN_LIST_NONE;
|
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list.lun_xml = str;
|
|
|
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if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) {
|
|
log_warn("error issuing CTL_LUN_LIST ioctl");
|
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free(str);
|
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return (NULL);
|
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}
|
|
|
|
if (list.status == CTL_LUN_LIST_ERROR) {
|
|
log_warnx("error returned from CTL_LUN_LIST ioctl: %s",
|
|
list.error_str);
|
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free(str);
|
|
return (NULL);
|
|
}
|
|
|
|
if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
|
|
len = len << 1;
|
|
goto retry;
|
|
}
|
|
|
|
parser = XML_ParserCreate(NULL);
|
|
if (parser == NULL) {
|
|
log_warnx("unable to create XML parser");
|
|
free(str);
|
|
return (NULL);
|
|
}
|
|
|
|
XML_SetUserData(parser, &devlist);
|
|
XML_SetElementHandler(parser, cctl_start_element, cctl_end_element);
|
|
XML_SetCharacterDataHandler(parser, cctl_char_handler);
|
|
|
|
retval = XML_Parse(parser, str, strlen(str), 1);
|
|
XML_ParserFree(parser);
|
|
free(str);
|
|
if (retval != 1) {
|
|
log_warnx("XML_Parse failed");
|
|
return (NULL);
|
|
}
|
|
|
|
str = NULL;
|
|
len = 4096;
|
|
retry_port:
|
|
str = realloc(str, len);
|
|
if (str == NULL)
|
|
log_err(1, "realloc");
|
|
|
|
bzero(&list, sizeof(list));
|
|
list.alloc_len = len;
|
|
list.status = CTL_LUN_LIST_NONE;
|
|
list.lun_xml = str;
|
|
|
|
if (ioctl(ctl_fd, CTL_PORT_LIST, &list) == -1) {
|
|
log_warn("error issuing CTL_PORT_LIST ioctl");
|
|
free(str);
|
|
return (NULL);
|
|
}
|
|
|
|
if (list.status == CTL_PORT_LIST_ERROR) {
|
|
log_warnx("error returned from CTL_PORT_LIST ioctl: %s",
|
|
list.error_str);
|
|
free(str);
|
|
return (NULL);
|
|
}
|
|
|
|
if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
|
|
len = len << 1;
|
|
goto retry_port;
|
|
}
|
|
|
|
parser = XML_ParserCreate(NULL);
|
|
if (parser == NULL) {
|
|
log_warnx("unable to create XML parser");
|
|
free(str);
|
|
return (NULL);
|
|
}
|
|
|
|
XML_SetUserData(parser, &devlist);
|
|
XML_SetElementHandler(parser, cctl_start_pelement, cctl_end_pelement);
|
|
XML_SetCharacterDataHandler(parser, cctl_char_handler);
|
|
|
|
retval = XML_Parse(parser, str, strlen(str), 1);
|
|
XML_ParserFree(parser);
|
|
free(str);
|
|
if (retval != 1) {
|
|
log_warnx("XML_Parse failed");
|
|
return (NULL);
|
|
}
|
|
|
|
conf = conf_new();
|
|
|
|
name = NULL;
|
|
STAILQ_FOREACH(port, &devlist.port_list, links) {
|
|
if (name)
|
|
free(name);
|
|
if (port->pp == 0 && port->vp == 0)
|
|
name = checked_strdup(port->port_name);
|
|
else if (port->vp == 0)
|
|
asprintf(&name, "%s/%d", port->port_name, port->pp);
|
|
else
|
|
asprintf(&name, "%s/%d/%d", port->port_name, port->pp,
|
|
port->vp);
|
|
|
|
if (port->cfiscsi_target == NULL) {
|
|
log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
|
|
port->port_id, name);
|
|
pp = pport_find(conf, name);
|
|
if (pp == NULL) {
|
|
#if 0
|
|
log_debugx("found new kernel port %u \"%s\"",
|
|
port->port_id, name);
|
|
#endif
|
|
pp = pport_new(conf, name, port->port_id);
|
|
if (pp == NULL) {
|
|
log_warnx("pport_new failed");
|
|
continue;
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
if (port->cfiscsi_state != 1) {
|
|
log_debugx("CTL port %ju is not active (%d); ignoring",
|
|
(uintmax_t)port->port_id, port->cfiscsi_state);
|
|
continue;
|
|
}
|
|
|
|
targ = target_find(conf, port->cfiscsi_target);
|
|
if (targ == NULL) {
|
|
#if 0
|
|
log_debugx("found new kernel target %s for CTL port %ld",
|
|
port->cfiscsi_target, port->port_id);
|
|
#endif
|
|
targ = target_new(conf, port->cfiscsi_target);
|
|
if (targ == NULL) {
|
|
log_warnx("target_new failed");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (port->ctld_portal_group_name == NULL)
|
|
continue;
|
|
pg = portal_group_find(conf, port->ctld_portal_group_name);
|
|
if (pg == NULL) {
|
|
#if 0
|
|
log_debugx("found new kernel portal group %s for CTL port %ld",
|
|
port->ctld_portal_group_name, port->port_id);
|
|
#endif
|
|
pg = portal_group_new(conf, port->ctld_portal_group_name);
|
|
if (pg == NULL) {
|
|
log_warnx("portal_group_new failed");
|
|
continue;
|
|
}
|
|
}
|
|
pg->pg_tag = port->cfiscsi_portal_group_tag;
|
|
cp = port_new(conf, targ, pg);
|
|
if (cp == NULL) {
|
|
log_warnx("port_new failed");
|
|
continue;
|
|
}
|
|
cp->p_ctl_port = port->port_id;
|
|
}
|
|
if (name)
|
|
free(name);
|
|
|
|
STAILQ_FOREACH(lun, &devlist.lun_list, links) {
|
|
struct cctl_lun_nv *nv;
|
|
|
|
if (lun->ctld_name == NULL) {
|
|
log_debugx("CTL lun %ju wasn't managed by ctld; "
|
|
"ignoring", (uintmax_t)lun->lun_id);
|
|
continue;
|
|
}
|
|
|
|
cl = lun_find(conf, lun->ctld_name);
|
|
if (cl != NULL) {
|
|
log_warnx("found CTL lun %ju \"%s\", "
|
|
"also backed by CTL lun %d; ignoring",
|
|
(uintmax_t)lun->lun_id, lun->ctld_name,
|
|
cl->l_ctl_lun);
|
|
continue;
|
|
}
|
|
|
|
log_debugx("found CTL lun %ju \"%s\"",
|
|
(uintmax_t)lun->lun_id, lun->ctld_name);
|
|
|
|
cl = lun_new(conf, lun->ctld_name);
|
|
if (cl == NULL) {
|
|
log_warnx("lun_new failed");
|
|
continue;
|
|
}
|
|
lun_set_backend(cl, lun->backend_type);
|
|
lun_set_blocksize(cl, lun->blocksize);
|
|
lun_set_device_id(cl, lun->device_id);
|
|
lun_set_serial(cl, lun->serial_number);
|
|
lun_set_size(cl, lun->size_blocks * cl->l_blocksize);
|
|
lun_set_ctl_lun(cl, lun->lun_id);
|
|
|
|
STAILQ_FOREACH(nv, &lun->attr_list, links) {
|
|
if (strcmp(nv->name, "file") == 0 ||
|
|
strcmp(nv->name, "dev") == 0) {
|
|
lun_set_path(cl, nv->value);
|
|
continue;
|
|
}
|
|
lo = lun_option_new(cl, nv->name, nv->value);
|
|
if (lo == NULL)
|
|
log_warnx("unable to add CTL lun option %s "
|
|
"for CTL lun %ju \"%s\"",
|
|
nv->name, (uintmax_t) lun->lun_id,
|
|
cl->l_name);
|
|
}
|
|
}
|
|
|
|
return (conf);
|
|
}
|
|
|
|
static void
|
|
str_arg(struct ctl_be_arg *arg, const char *name, const char *value)
|
|
{
|
|
|
|
arg->namelen = strlen(name) + 1;
|
|
arg->name = __DECONST(char *, name);
|
|
arg->vallen = strlen(value) + 1;
|
|
arg->value = __DECONST(char *, value);
|
|
arg->flags = CTL_BEARG_ASCII | CTL_BEARG_RD;
|
|
}
|
|
|
|
int
|
|
kernel_lun_add(struct lun *lun)
|
|
{
|
|
struct lun_option *lo;
|
|
struct ctl_lun_req req;
|
|
int error, i, num_options;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
|
|
req.reqtype = CTL_LUNREQ_CREATE;
|
|
|
|
req.reqdata.create.blocksize_bytes = lun->l_blocksize;
|
|
|
|
if (lun->l_size != 0)
|
|
req.reqdata.create.lun_size_bytes = lun->l_size;
|
|
|
|
req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
|
|
req.reqdata.create.device_type = T_DIRECT;
|
|
|
|
if (lun->l_serial != NULL) {
|
|
strncpy(req.reqdata.create.serial_num, lun->l_serial,
|
|
sizeof(req.reqdata.create.serial_num));
|
|
req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM;
|
|
}
|
|
|
|
if (lun->l_device_id != NULL) {
|
|
strncpy(req.reqdata.create.device_id, lun->l_device_id,
|
|
sizeof(req.reqdata.create.device_id));
|
|
req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID;
|
|
}
|
|
|
|
if (lun->l_path != NULL) {
|
|
lo = lun_option_find(lun, "file");
|
|
if (lo != NULL) {
|
|
lun_option_set(lo, lun->l_path);
|
|
} else {
|
|
lo = lun_option_new(lun, "file", lun->l_path);
|
|
assert(lo != NULL);
|
|
}
|
|
}
|
|
|
|
lo = lun_option_find(lun, "ctld_name");
|
|
if (lo != NULL) {
|
|
lun_option_set(lo, lun->l_name);
|
|
} else {
|
|
lo = lun_option_new(lun, "ctld_name", lun->l_name);
|
|
assert(lo != NULL);
|
|
}
|
|
|
|
lo = lun_option_find(lun, "scsiname");
|
|
if (lo == NULL && lun->l_scsiname != NULL) {
|
|
lo = lun_option_new(lun, "scsiname", lun->l_scsiname);
|
|
assert(lo != NULL);
|
|
}
|
|
|
|
num_options = 0;
|
|
TAILQ_FOREACH(lo, &lun->l_options, lo_next)
|
|
num_options++;
|
|
|
|
req.num_be_args = num_options;
|
|
if (num_options > 0) {
|
|
req.be_args = malloc(num_options * sizeof(*req.be_args));
|
|
if (req.be_args == NULL) {
|
|
log_warn("error allocating %zd bytes",
|
|
num_options * sizeof(*req.be_args));
|
|
return (1);
|
|
}
|
|
|
|
i = 0;
|
|
TAILQ_FOREACH(lo, &lun->l_options, lo_next) {
|
|
str_arg(&req.be_args[i], lo->lo_name, lo->lo_value);
|
|
i++;
|
|
}
|
|
assert(i == num_options);
|
|
}
|
|
|
|
error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
|
|
free(req.be_args);
|
|
if (error != 0) {
|
|
log_warn("error issuing CTL_LUN_REQ ioctl");
|
|
return (1);
|
|
}
|
|
|
|
switch (req.status) {
|
|
case CTL_LUN_ERROR:
|
|
log_warnx("LUN creation error: %s", req.error_str);
|
|
return (1);
|
|
case CTL_LUN_WARNING:
|
|
log_warnx("LUN creation warning: %s", req.error_str);
|
|
break;
|
|
case CTL_LUN_OK:
|
|
break;
|
|
default:
|
|
log_warnx("unknown LUN creation status: %d",
|
|
req.status);
|
|
return (1);
|
|
}
|
|
|
|
lun_set_ctl_lun(lun, req.reqdata.create.req_lun_id);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
kernel_lun_modify(struct lun *lun)
|
|
{
|
|
struct lun_option *lo;
|
|
struct ctl_lun_req req;
|
|
int error, i, num_options;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
|
|
req.reqtype = CTL_LUNREQ_MODIFY;
|
|
|
|
req.reqdata.modify.lun_id = lun->l_ctl_lun;
|
|
req.reqdata.modify.lun_size_bytes = lun->l_size;
|
|
|
|
num_options = 0;
|
|
TAILQ_FOREACH(lo, &lun->l_options, lo_next)
|
|
num_options++;
|
|
|
|
req.num_be_args = num_options;
|
|
if (num_options > 0) {
|
|
req.be_args = malloc(num_options * sizeof(*req.be_args));
|
|
if (req.be_args == NULL) {
|
|
log_warn("error allocating %zd bytes",
|
|
num_options * sizeof(*req.be_args));
|
|
return (1);
|
|
}
|
|
|
|
i = 0;
|
|
TAILQ_FOREACH(lo, &lun->l_options, lo_next) {
|
|
str_arg(&req.be_args[i], lo->lo_name, lo->lo_value);
|
|
i++;
|
|
}
|
|
assert(i == num_options);
|
|
}
|
|
|
|
error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
|
|
free(req.be_args);
|
|
if (error != 0) {
|
|
log_warn("error issuing CTL_LUN_REQ ioctl");
|
|
return (1);
|
|
}
|
|
|
|
switch (req.status) {
|
|
case CTL_LUN_ERROR:
|
|
log_warnx("LUN modification error: %s", req.error_str);
|
|
return (1);
|
|
case CTL_LUN_WARNING:
|
|
log_warnx("LUN modification warning: %s", req.error_str);
|
|
break;
|
|
case CTL_LUN_OK:
|
|
break;
|
|
default:
|
|
log_warnx("unknown LUN modification status: %d",
|
|
req.status);
|
|
return (1);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
kernel_lun_remove(struct lun *lun)
|
|
{
|
|
struct ctl_lun_req req;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
strlcpy(req.backend, lun->l_backend, sizeof(req.backend));
|
|
req.reqtype = CTL_LUNREQ_RM;
|
|
|
|
req.reqdata.rm.lun_id = lun->l_ctl_lun;
|
|
|
|
if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) {
|
|
log_warn("error issuing CTL_LUN_REQ ioctl");
|
|
return (1);
|
|
}
|
|
|
|
switch (req.status) {
|
|
case CTL_LUN_ERROR:
|
|
log_warnx("LUN removal error: %s", req.error_str);
|
|
return (1);
|
|
case CTL_LUN_WARNING:
|
|
log_warnx("LUN removal warning: %s", req.error_str);
|
|
break;
|
|
case CTL_LUN_OK:
|
|
break;
|
|
default:
|
|
log_warnx("unknown LUN removal status: %d", req.status);
|
|
return (1);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
kernel_handoff(struct connection *conn)
|
|
{
|
|
struct ctl_iscsi req;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
req.type = CTL_ISCSI_HANDOFF;
|
|
strlcpy(req.data.handoff.initiator_name,
|
|
conn->conn_initiator_name, sizeof(req.data.handoff.initiator_name));
|
|
strlcpy(req.data.handoff.initiator_addr,
|
|
conn->conn_initiator_addr, sizeof(req.data.handoff.initiator_addr));
|
|
if (conn->conn_initiator_alias != NULL) {
|
|
strlcpy(req.data.handoff.initiator_alias,
|
|
conn->conn_initiator_alias, sizeof(req.data.handoff.initiator_alias));
|
|
}
|
|
memcpy(req.data.handoff.initiator_isid, conn->conn_initiator_isid,
|
|
sizeof(req.data.handoff.initiator_isid));
|
|
strlcpy(req.data.handoff.target_name,
|
|
conn->conn_target->t_name, sizeof(req.data.handoff.target_name));
|
|
if (conn->conn_portal->p_portal_group->pg_offload != NULL) {
|
|
strlcpy(req.data.handoff.offload,
|
|
conn->conn_portal->p_portal_group->pg_offload,
|
|
sizeof(req.data.handoff.offload));
|
|
}
|
|
#ifdef ICL_KERNEL_PROXY
|
|
if (proxy_mode)
|
|
req.data.handoff.connection_id = conn->conn_socket;
|
|
else
|
|
req.data.handoff.socket = conn->conn_socket;
|
|
#else
|
|
req.data.handoff.socket = conn->conn_socket;
|
|
#endif
|
|
req.data.handoff.portal_group_tag =
|
|
conn->conn_portal->p_portal_group->pg_tag;
|
|
if (conn->conn_header_digest == CONN_DIGEST_CRC32C)
|
|
req.data.handoff.header_digest = CTL_ISCSI_DIGEST_CRC32C;
|
|
if (conn->conn_data_digest == CONN_DIGEST_CRC32C)
|
|
req.data.handoff.data_digest = CTL_ISCSI_DIGEST_CRC32C;
|
|
req.data.handoff.cmdsn = conn->conn_cmdsn;
|
|
req.data.handoff.statsn = conn->conn_statsn;
|
|
req.data.handoff.max_recv_data_segment_length =
|
|
conn->conn_max_data_segment_length;
|
|
req.data.handoff.max_burst_length = conn->conn_max_burst_length;
|
|
req.data.handoff.immediate_data = conn->conn_immediate_data;
|
|
|
|
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
|
|
log_err(1, "error issuing CTL_ISCSI ioctl; "
|
|
"dropping connection");
|
|
}
|
|
|
|
if (req.status != CTL_ISCSI_OK) {
|
|
log_errx(1, "error returned from CTL iSCSI handoff request: "
|
|
"%s; dropping connection", req.error_str);
|
|
}
|
|
}
|
|
|
|
void
|
|
kernel_limits(const char *offload, size_t *max_data_segment_length)
|
|
{
|
|
struct ctl_iscsi req;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
req.type = CTL_ISCSI_LIMITS;
|
|
if (offload != NULL) {
|
|
strlcpy(req.data.limits.offload, offload,
|
|
sizeof(req.data.limits.offload));
|
|
}
|
|
|
|
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
|
|
log_err(1, "error issuing CTL_ISCSI ioctl; "
|
|
"dropping connection");
|
|
}
|
|
|
|
if (req.status != CTL_ISCSI_OK) {
|
|
log_errx(1, "error returned from CTL iSCSI limits request: "
|
|
"%s; dropping connection", req.error_str);
|
|
}
|
|
|
|
*max_data_segment_length = req.data.limits.data_segment_limit;
|
|
if (offload != NULL) {
|
|
log_debugx("MaxRecvDataSegment kernel limit for offload "
|
|
"\"%s\" is %zd", offload, *max_data_segment_length);
|
|
} else {
|
|
log_debugx("MaxRecvDataSegment kernel limit is %zd",
|
|
*max_data_segment_length);
|
|
}
|
|
}
|
|
|
|
int
|
|
kernel_port_add(struct port *port)
|
|
{
|
|
struct ctl_port_entry entry;
|
|
struct ctl_req req;
|
|
struct ctl_lun_map lm;
|
|
struct target *targ = port->p_target;
|
|
struct portal_group *pg = port->p_portal_group;
|
|
char tagstr[16];
|
|
int error, i, n;
|
|
|
|
/* Create iSCSI port. */
|
|
if (port->p_portal_group) {
|
|
bzero(&req, sizeof(req));
|
|
strlcpy(req.driver, "iscsi", sizeof(req.driver));
|
|
req.reqtype = CTL_REQ_CREATE;
|
|
req.num_args = 5;
|
|
req.args = malloc(req.num_args * sizeof(*req.args));
|
|
if (req.args == NULL)
|
|
log_err(1, "malloc");
|
|
n = 0;
|
|
req.args[n].namelen = sizeof("port_id");
|
|
req.args[n].name = __DECONST(char *, "port_id");
|
|
req.args[n].vallen = sizeof(port->p_ctl_port);
|
|
req.args[n].value = &port->p_ctl_port;
|
|
req.args[n++].flags = CTL_BEARG_WR;
|
|
str_arg(&req.args[n++], "cfiscsi_target", targ->t_name);
|
|
snprintf(tagstr, sizeof(tagstr), "%d", pg->pg_tag);
|
|
str_arg(&req.args[n++], "cfiscsi_portal_group_tag", tagstr);
|
|
if (targ->t_alias)
|
|
str_arg(&req.args[n++], "cfiscsi_target_alias", targ->t_alias);
|
|
str_arg(&req.args[n++], "ctld_portal_group_name", pg->pg_name);
|
|
req.num_args = n;
|
|
error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
|
|
free(req.args);
|
|
if (error != 0) {
|
|
log_warn("error issuing CTL_PORT_REQ ioctl");
|
|
return (1);
|
|
}
|
|
if (req.status == CTL_LUN_ERROR) {
|
|
log_warnx("error returned from port creation request: %s",
|
|
req.error_str);
|
|
return (1);
|
|
}
|
|
if (req.status != CTL_LUN_OK) {
|
|
log_warnx("unknown port creation request status %d",
|
|
req.status);
|
|
return (1);
|
|
}
|
|
} else if (port->p_pport) {
|
|
port->p_ctl_port = port->p_pport->pp_ctl_port;
|
|
|
|
if (strncmp(targ->t_name, "naa.", 4) == 0 &&
|
|
strlen(targ->t_name) == 20) {
|
|
bzero(&entry, sizeof(entry));
|
|
entry.port_type = CTL_PORT_NONE;
|
|
entry.targ_port = port->p_ctl_port;
|
|
entry.flags |= CTL_PORT_WWNN_VALID;
|
|
entry.wwnn = strtoull(targ->t_name + 4, NULL, 16);
|
|
if (ioctl(ctl_fd, CTL_SET_PORT_WWNS, &entry) == -1)
|
|
log_warn("CTL_SET_PORT_WWNS ioctl failed");
|
|
}
|
|
}
|
|
|
|
/* Explicitly enable mapping to block any access except allowed. */
|
|
lm.port = port->p_ctl_port;
|
|
lm.plun = UINT32_MAX;
|
|
lm.lun = 0;
|
|
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
|
|
if (error != 0)
|
|
log_warn("CTL_LUN_MAP ioctl failed");
|
|
|
|
/* Map configured LUNs */
|
|
for (i = 0; i < MAX_LUNS; i++) {
|
|
if (targ->t_luns[i] == NULL)
|
|
continue;
|
|
lm.port = port->p_ctl_port;
|
|
lm.plun = i;
|
|
lm.lun = targ->t_luns[i]->l_ctl_lun;
|
|
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
|
|
if (error != 0)
|
|
log_warn("CTL_LUN_MAP ioctl failed");
|
|
}
|
|
|
|
/* Enable port */
|
|
bzero(&entry, sizeof(entry));
|
|
entry.targ_port = port->p_ctl_port;
|
|
error = ioctl(ctl_fd, CTL_ENABLE_PORT, &entry);
|
|
if (error != 0) {
|
|
log_warn("CTL_ENABLE_PORT ioctl failed");
|
|
return (-1);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
kernel_port_update(struct port *port, struct port *oport)
|
|
{
|
|
struct ctl_lun_map lm;
|
|
struct target *targ = port->p_target;
|
|
struct target *otarg = oport->p_target;
|
|
int error, i;
|
|
uint32_t olun;
|
|
|
|
/* Map configured LUNs and unmap others */
|
|
for (i = 0; i < MAX_LUNS; i++) {
|
|
lm.port = port->p_ctl_port;
|
|
lm.plun = i;
|
|
if (targ->t_luns[i] == NULL)
|
|
lm.lun = UINT32_MAX;
|
|
else
|
|
lm.lun = targ->t_luns[i]->l_ctl_lun;
|
|
if (otarg->t_luns[i] == NULL)
|
|
olun = UINT32_MAX;
|
|
else
|
|
olun = otarg->t_luns[i]->l_ctl_lun;
|
|
if (lm.lun == olun)
|
|
continue;
|
|
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
|
|
if (error != 0)
|
|
log_warn("CTL_LUN_MAP ioctl failed");
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
kernel_port_remove(struct port *port)
|
|
{
|
|
struct ctl_port_entry entry;
|
|
struct ctl_lun_map lm;
|
|
struct ctl_req req;
|
|
char tagstr[16];
|
|
struct target *targ = port->p_target;
|
|
struct portal_group *pg = port->p_portal_group;
|
|
int error;
|
|
|
|
/* Disable port */
|
|
bzero(&entry, sizeof(entry));
|
|
entry.targ_port = port->p_ctl_port;
|
|
error = ioctl(ctl_fd, CTL_DISABLE_PORT, &entry);
|
|
if (error != 0) {
|
|
log_warn("CTL_DISABLE_PORT ioctl failed");
|
|
return (-1);
|
|
}
|
|
|
|
/* Remove iSCSI port. */
|
|
if (port->p_portal_group) {
|
|
bzero(&req, sizeof(req));
|
|
strlcpy(req.driver, "iscsi", sizeof(req.driver));
|
|
req.reqtype = CTL_REQ_REMOVE;
|
|
req.num_args = 2;
|
|
req.args = malloc(req.num_args * sizeof(*req.args));
|
|
if (req.args == NULL)
|
|
log_err(1, "malloc");
|
|
str_arg(&req.args[0], "cfiscsi_target", targ->t_name);
|
|
snprintf(tagstr, sizeof(tagstr), "%d", pg->pg_tag);
|
|
str_arg(&req.args[1], "cfiscsi_portal_group_tag", tagstr);
|
|
error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
|
|
free(req.args);
|
|
if (error != 0) {
|
|
log_warn("error issuing CTL_PORT_REQ ioctl");
|
|
return (1);
|
|
}
|
|
if (req.status == CTL_LUN_ERROR) {
|
|
log_warnx("error returned from port removal request: %s",
|
|
req.error_str);
|
|
return (1);
|
|
}
|
|
if (req.status != CTL_LUN_OK) {
|
|
log_warnx("unknown port removal request status %d",
|
|
req.status);
|
|
return (1);
|
|
}
|
|
} else {
|
|
/* Disable LUN mapping. */
|
|
lm.port = port->p_ctl_port;
|
|
lm.plun = UINT32_MAX;
|
|
lm.lun = UINT32_MAX;
|
|
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
|
|
if (error != 0)
|
|
log_warn("CTL_LUN_MAP ioctl failed");
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
void
|
|
kernel_listen(struct addrinfo *ai, bool iser, int portal_id)
|
|
{
|
|
struct ctl_iscsi req;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
req.type = CTL_ISCSI_LISTEN;
|
|
req.data.listen.iser = iser;
|
|
req.data.listen.domain = ai->ai_family;
|
|
req.data.listen.socktype = ai->ai_socktype;
|
|
req.data.listen.protocol = ai->ai_protocol;
|
|
req.data.listen.addr = ai->ai_addr;
|
|
req.data.listen.addrlen = ai->ai_addrlen;
|
|
req.data.listen.portal_id = portal_id;
|
|
|
|
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
|
|
log_err(1, "error issuing CTL_ISCSI ioctl");
|
|
|
|
if (req.status != CTL_ISCSI_OK) {
|
|
log_errx(1, "error returned from CTL iSCSI listen: %s",
|
|
req.error_str);
|
|
}
|
|
}
|
|
|
|
void
|
|
kernel_accept(int *connection_id, int *portal_id,
|
|
struct sockaddr *client_sa, socklen_t *client_salen)
|
|
{
|
|
struct ctl_iscsi req;
|
|
struct sockaddr_storage ss;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
req.type = CTL_ISCSI_ACCEPT;
|
|
req.data.accept.initiator_addr = (struct sockaddr *)&ss;
|
|
|
|
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
|
|
log_err(1, "error issuing CTL_ISCSI ioctl");
|
|
|
|
if (req.status != CTL_ISCSI_OK) {
|
|
log_errx(1, "error returned from CTL iSCSI accept: %s",
|
|
req.error_str);
|
|
}
|
|
|
|
*connection_id = req.data.accept.connection_id;
|
|
*portal_id = req.data.accept.portal_id;
|
|
*client_salen = req.data.accept.initiator_addrlen;
|
|
memcpy(client_sa, &ss, *client_salen);
|
|
}
|
|
|
|
void
|
|
kernel_send(struct pdu *pdu)
|
|
{
|
|
struct ctl_iscsi req;
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
req.type = CTL_ISCSI_SEND;
|
|
req.data.send.connection_id = pdu->pdu_connection->conn_socket;
|
|
req.data.send.bhs = pdu->pdu_bhs;
|
|
req.data.send.data_segment_len = pdu->pdu_data_len;
|
|
req.data.send.data_segment = pdu->pdu_data;
|
|
|
|
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
|
|
log_err(1, "error issuing CTL_ISCSI ioctl; "
|
|
"dropping connection");
|
|
}
|
|
|
|
if (req.status != CTL_ISCSI_OK) {
|
|
log_errx(1, "error returned from CTL iSCSI send: "
|
|
"%s; dropping connection", req.error_str);
|
|
}
|
|
}
|
|
|
|
void
|
|
kernel_receive(struct pdu *pdu)
|
|
{
|
|
struct ctl_iscsi req;
|
|
|
|
pdu->pdu_data = malloc(MAX_DATA_SEGMENT_LENGTH);
|
|
if (pdu->pdu_data == NULL)
|
|
log_err(1, "malloc");
|
|
|
|
bzero(&req, sizeof(req));
|
|
|
|
req.type = CTL_ISCSI_RECEIVE;
|
|
req.data.receive.connection_id = pdu->pdu_connection->conn_socket;
|
|
req.data.receive.bhs = pdu->pdu_bhs;
|
|
req.data.receive.data_segment_len = MAX_DATA_SEGMENT_LENGTH;
|
|
req.data.receive.data_segment = pdu->pdu_data;
|
|
|
|
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
|
|
log_err(1, "error issuing CTL_ISCSI ioctl; "
|
|
"dropping connection");
|
|
}
|
|
|
|
if (req.status != CTL_ISCSI_OK) {
|
|
log_errx(1, "error returned from CTL iSCSI receive: "
|
|
"%s; dropping connection", req.error_str);
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* ICL_KERNEL_PROXY */
|
|
|
|
/*
|
|
* XXX: I CANT INTO LATIN
|
|
*/
|
|
void
|
|
kernel_capsicate(void)
|
|
{
|
|
int error;
|
|
cap_rights_t rights;
|
|
const unsigned long cmds[] = { CTL_ISCSI };
|
|
|
|
cap_rights_init(&rights, CAP_IOCTL);
|
|
error = cap_rights_limit(ctl_fd, &rights);
|
|
if (error != 0 && errno != ENOSYS)
|
|
log_err(1, "cap_rights_limit");
|
|
|
|
error = cap_ioctls_limit(ctl_fd, cmds,
|
|
sizeof(cmds) / sizeof(cmds[0]));
|
|
if (error != 0 && errno != ENOSYS)
|
|
log_err(1, "cap_ioctls_limit");
|
|
|
|
error = cap_enter();
|
|
if (error != 0 && errno != ENOSYS)
|
|
log_err(1, "cap_enter");
|
|
|
|
if (cap_sandboxed())
|
|
log_debugx("Capsicum capability mode enabled");
|
|
else
|
|
log_warnx("Capsicum capability mode not supported");
|
|
}
|
|
|