2013-09-14 15:29:06 +00:00
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/*-
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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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* This software was developed by Edward Tomasz Napierala under sponsorship
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* 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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* 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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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <sys/wait.h>
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#include <netinet/in.h>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <netdb.h>
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#include <signal.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ctld.h"
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static volatile bool sighup_received = false;
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static volatile bool sigterm_received = false;
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static volatile bool sigalrm_received = false;
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static int nchildren = 0;
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static void
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usage(void)
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{
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fprintf(stderr, "usage: ctld [-d][-f config-file]\n");
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exit(1);
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}
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char *
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checked_strdup(const char *s)
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{
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char *c;
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c = strdup(s);
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if (c == NULL)
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log_err(1, "strdup");
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return (c);
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}
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struct conf *
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conf_new(void)
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{
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struct conf *conf;
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conf = calloc(1, sizeof(*conf));
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if (conf == NULL)
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log_err(1, "calloc");
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TAILQ_INIT(&conf->conf_targets);
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TAILQ_INIT(&conf->conf_auth_groups);
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TAILQ_INIT(&conf->conf_portal_groups);
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conf->conf_debug = 0;
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conf->conf_timeout = 60;
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conf->conf_maxproc = 30;
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return (conf);
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}
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void
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conf_delete(struct conf *conf)
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{
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struct target *targ, *tmp;
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struct auth_group *ag, *cagtmp;
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struct portal_group *pg, *cpgtmp;
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assert(conf->conf_pidfh == NULL);
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TAILQ_FOREACH_SAFE(targ, &conf->conf_targets, t_next, tmp)
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target_delete(targ);
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TAILQ_FOREACH_SAFE(ag, &conf->conf_auth_groups, ag_next, cagtmp)
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auth_group_delete(ag);
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TAILQ_FOREACH_SAFE(pg, &conf->conf_portal_groups, pg_next, cpgtmp)
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portal_group_delete(pg);
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free(conf->conf_pidfile_path);
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free(conf);
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}
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static struct auth *
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auth_new(struct auth_group *ag)
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{
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struct auth *auth;
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auth = calloc(1, sizeof(*auth));
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if (auth == NULL)
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log_err(1, "calloc");
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auth->a_auth_group = ag;
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TAILQ_INSERT_TAIL(&ag->ag_auths, auth, a_next);
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return (auth);
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}
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static void
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auth_delete(struct auth *auth)
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{
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TAILQ_REMOVE(&auth->a_auth_group->ag_auths, auth, a_next);
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free(auth->a_user);
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free(auth->a_secret);
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free(auth->a_mutual_user);
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free(auth->a_mutual_secret);
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free(auth);
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}
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const struct auth *
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auth_find(struct auth_group *ag, const char *user)
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{
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const struct auth *auth;
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TAILQ_FOREACH(auth, &ag->ag_auths, a_next) {
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if (strcmp(auth->a_user, user) == 0)
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return (auth);
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}
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return (NULL);
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}
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struct auth_group *
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auth_group_new(struct conf *conf, const char *name)
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{
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struct auth_group *ag;
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if (name != NULL) {
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ag = auth_group_find(conf, name);
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if (ag != NULL) {
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log_warnx("duplicated auth-group \"%s\"", name);
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return (NULL);
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}
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}
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ag = calloc(1, sizeof(*ag));
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if (ag == NULL)
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log_err(1, "calloc");
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if (name != NULL)
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ag->ag_name = checked_strdup(name);
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TAILQ_INIT(&ag->ag_auths);
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ag->ag_conf = conf;
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TAILQ_INSERT_TAIL(&conf->conf_auth_groups, ag, ag_next);
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return (ag);
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}
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void
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auth_group_delete(struct auth_group *ag)
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{
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struct auth *auth, *tmp;
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TAILQ_REMOVE(&ag->ag_conf->conf_auth_groups, ag, ag_next);
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TAILQ_FOREACH_SAFE(auth, &ag->ag_auths, a_next, tmp)
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auth_delete(auth);
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free(ag->ag_name);
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free(ag);
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}
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struct auth_group *
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auth_group_find(struct conf *conf, const char *name)
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{
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struct auth_group *ag;
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TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
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if (ag->ag_name != NULL && strcmp(ag->ag_name, name) == 0)
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return (ag);
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}
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return (NULL);
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}
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static void
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auth_check_secret_length(struct auth *auth)
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{
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size_t len;
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len = strlen(auth->a_secret);
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if (len > 16) {
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if (auth->a_auth_group->ag_name != NULL)
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log_warnx("secret for user \"%s\", auth-group \"%s\", "
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"is too long; it should be at most 16 characters "
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"long", auth->a_user, auth->a_auth_group->ag_name);
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else
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log_warnx("secret for user \"%s\", target \"%s\", "
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"is too long; it should be at most 16 characters "
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"long", auth->a_user,
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auth->a_auth_group->ag_target->t_iqn);
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}
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if (len < 12) {
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if (auth->a_auth_group->ag_name != NULL)
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log_warnx("secret for user \"%s\", auth-group \"%s\", "
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"is too short; it should be at least 12 characters "
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"long", auth->a_user,
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auth->a_auth_group->ag_name);
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else
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log_warnx("secret for user \"%s\", target \"%s\", "
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"is too short; it should be at least 16 characters "
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"long", auth->a_user,
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auth->a_auth_group->ag_target->t_iqn);
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}
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if (auth->a_mutual_secret != NULL) {
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len = strlen(auth->a_secret);
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if (len > 16) {
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if (auth->a_auth_group->ag_name != NULL)
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log_warnx("mutual secret for user \"%s\", "
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"auth-group \"%s\", is too long; it should "
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"be at most 16 characters long",
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auth->a_user, auth->a_auth_group->ag_name);
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else
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log_warnx("mutual secret for user \"%s\", "
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"target \"%s\", is too long; it should "
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"be at most 16 characters long",
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auth->a_user,
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auth->a_auth_group->ag_target->t_iqn);
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}
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if (len < 12) {
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if (auth->a_auth_group->ag_name != NULL)
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log_warnx("mutual secret for user \"%s\", "
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"auth-group \"%s\", is too short; it "
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"should be at least 12 characters long",
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auth->a_user, auth->a_auth_group->ag_name);
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else
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log_warnx("mutual secret for user \"%s\", "
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"target \"%s\", is too short; it should be "
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"at least 16 characters long",
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auth->a_user,
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auth->a_auth_group->ag_target->t_iqn);
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}
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}
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}
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const struct auth *
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auth_new_chap(struct auth_group *ag, const char *user,
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const char *secret)
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{
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struct auth *auth;
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if (ag->ag_type == AG_TYPE_UNKNOWN)
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ag->ag_type = AG_TYPE_CHAP;
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if (ag->ag_type != AG_TYPE_CHAP) {
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if (ag->ag_name != NULL)
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log_warnx("cannot mix \"chap\" authentication with "
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"other types for auth-group \"%s\"", ag->ag_name);
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else
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log_warnx("cannot mix \"chap\" authentication with "
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"other types for target \"%s\"",
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ag->ag_target->t_iqn);
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return (NULL);
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}
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auth = auth_new(ag);
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auth->a_user = checked_strdup(user);
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auth->a_secret = checked_strdup(secret);
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auth_check_secret_length(auth);
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return (auth);
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}
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const struct auth *
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auth_new_chap_mutual(struct auth_group *ag, const char *user,
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const char *secret, const char *user2, const char *secret2)
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{
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struct auth *auth;
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if (ag->ag_type == AG_TYPE_UNKNOWN)
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ag->ag_type = AG_TYPE_CHAP_MUTUAL;
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if (ag->ag_type != AG_TYPE_CHAP_MUTUAL) {
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if (ag->ag_name != NULL)
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log_warnx("cannot mix \"chap-mutual\" authentication "
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"with other types for auth-group \"%s\"",
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ag->ag_name);
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else
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log_warnx("cannot mix \"chap-mutual\" authentication "
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"with other types for target \"%s\"",
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ag->ag_target->t_iqn);
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return (NULL);
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}
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auth = auth_new(ag);
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auth->a_user = checked_strdup(user);
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auth->a_secret = checked_strdup(secret);
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auth->a_mutual_user = checked_strdup(user2);
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auth->a_mutual_secret = checked_strdup(secret2);
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auth_check_secret_length(auth);
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return (auth);
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}
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static struct portal *
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portal_new(struct portal_group *pg)
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{
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struct portal *portal;
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portal = calloc(1, sizeof(*portal));
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if (portal == NULL)
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log_err(1, "calloc");
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TAILQ_INIT(&portal->p_targets);
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portal->p_portal_group = pg;
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TAILQ_INSERT_TAIL(&pg->pg_portals, portal, p_next);
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return (portal);
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}
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static void
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portal_delete(struct portal *portal)
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{
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TAILQ_REMOVE(&portal->p_portal_group->pg_portals, portal, p_next);
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freeaddrinfo(portal->p_ai);
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free(portal->p_listen);
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free(portal);
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}
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struct portal_group *
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portal_group_new(struct conf *conf, const char *name)
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{
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struct portal_group *pg;
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2013-09-18 21:15:21 +00:00
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pg = portal_group_find(conf, name);
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if (pg != NULL) {
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log_warnx("duplicated portal-group \"%s\"", name);
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return (NULL);
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2013-09-14 15:29:06 +00:00
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}
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pg = calloc(1, sizeof(*pg));
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if (pg == NULL)
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log_err(1, "calloc");
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pg->pg_name = checked_strdup(name);
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TAILQ_INIT(&pg->pg_portals);
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pg->pg_conf = conf;
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conf->conf_last_portal_group_tag++;
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pg->pg_tag = conf->conf_last_portal_group_tag;
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TAILQ_INSERT_TAIL(&conf->conf_portal_groups, pg, pg_next);
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return (pg);
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}
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void
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portal_group_delete(struct portal_group *pg)
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{
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struct portal *portal, *tmp;
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TAILQ_REMOVE(&pg->pg_conf->conf_portal_groups, pg, pg_next);
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TAILQ_FOREACH_SAFE(portal, &pg->pg_portals, p_next, tmp)
|
|
|
|
portal_delete(portal);
|
|
|
|
free(pg->pg_name);
|
|
|
|
free(pg);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct portal_group *
|
|
|
|
portal_group_find(struct conf *conf, const char *name)
|
|
|
|
{
|
|
|
|
struct portal_group *pg;
|
|
|
|
|
|
|
|
TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
|
|
|
|
if (strcmp(pg->pg_name, name) == 0)
|
|
|
|
return (pg);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
portal_group_add_listen(struct portal_group *pg, const char *value, bool iser)
|
|
|
|
{
|
|
|
|
struct addrinfo hints;
|
|
|
|
struct portal *portal;
|
|
|
|
char *addr, *ch, *arg;
|
|
|
|
const char *port;
|
|
|
|
int error, colons = 0;
|
|
|
|
|
|
|
|
#ifndef ICL_KERNEL_PROXY
|
|
|
|
if (iser) {
|
|
|
|
log_warnx("ctld(8) compiled without ICL_KERNEL_PROXY "
|
|
|
|
"does not support iSER protocol");
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
portal = portal_new(pg);
|
|
|
|
portal->p_listen = checked_strdup(value);
|
|
|
|
portal->p_iser = iser;
|
|
|
|
|
|
|
|
arg = portal->p_listen;
|
|
|
|
if (arg[0] == '\0') {
|
|
|
|
log_warnx("empty listen address");
|
|
|
|
free(portal->p_listen);
|
|
|
|
free(portal);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (arg[0] == '[') {
|
|
|
|
/*
|
|
|
|
* IPv6 address in square brackets, perhaps with port.
|
|
|
|
*/
|
|
|
|
arg++;
|
|
|
|
addr = strsep(&arg, "]");
|
|
|
|
if (arg == NULL) {
|
|
|
|
log_warnx("invalid listen address %s",
|
|
|
|
portal->p_listen);
|
|
|
|
free(portal->p_listen);
|
|
|
|
free(portal);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (arg[0] == '\0') {
|
|
|
|
port = "3260";
|
|
|
|
} else if (arg[0] == ':') {
|
|
|
|
port = arg + 1;
|
|
|
|
} else {
|
|
|
|
log_warnx("invalid listen address %s",
|
|
|
|
portal->p_listen);
|
|
|
|
free(portal->p_listen);
|
|
|
|
free(portal);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* Either IPv6 address without brackets - and without
|
|
|
|
* a port - or IPv4 address. Just count the colons.
|
|
|
|
*/
|
|
|
|
for (ch = arg; *ch != '\0'; ch++) {
|
|
|
|
if (*ch == ':')
|
|
|
|
colons++;
|
|
|
|
}
|
|
|
|
if (colons > 1) {
|
|
|
|
addr = arg;
|
|
|
|
port = "3260";
|
|
|
|
} else {
|
|
|
|
addr = strsep(&arg, ":");
|
|
|
|
if (arg == NULL)
|
|
|
|
port = "3260";
|
|
|
|
else
|
|
|
|
port = arg;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
|
|
hints.ai_family = PF_UNSPEC;
|
|
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
|
|
hints.ai_flags = AI_PASSIVE;
|
|
|
|
|
|
|
|
error = getaddrinfo(addr, port, &hints, &portal->p_ai);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warnx("getaddrinfo for %s failed: %s",
|
|
|
|
portal->p_listen, gai_strerror(error));
|
|
|
|
free(portal->p_listen);
|
|
|
|
free(portal);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX: getaddrinfo(3) may return multiple addresses; we should turn
|
|
|
|
* those into multiple portals.
|
|
|
|
*/
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool
|
|
|
|
valid_hex(const char ch)
|
|
|
|
{
|
|
|
|
switch (ch) {
|
|
|
|
case '0':
|
|
|
|
case '1':
|
|
|
|
case '2':
|
|
|
|
case '3':
|
|
|
|
case '4':
|
|
|
|
case '5':
|
|
|
|
case '6':
|
|
|
|
case '7':
|
|
|
|
case '8':
|
|
|
|
case '9':
|
|
|
|
case 'a':
|
|
|
|
case 'A':
|
|
|
|
case 'b':
|
|
|
|
case 'B':
|
|
|
|
case 'c':
|
|
|
|
case 'C':
|
|
|
|
case 'd':
|
|
|
|
case 'D':
|
|
|
|
case 'e':
|
|
|
|
case 'E':
|
|
|
|
case 'f':
|
|
|
|
case 'F':
|
|
|
|
return (true);
|
|
|
|
default:
|
|
|
|
return (false);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
bool
|
|
|
|
valid_iscsi_name(const char *name)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (strlen(name) >= MAX_NAME_LEN) {
|
|
|
|
log_warnx("overlong name for target \"%s\"; max length allowed "
|
|
|
|
"by iSCSI specification is %d characters",
|
|
|
|
name, MAX_NAME_LEN);
|
|
|
|
return (false);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In the cases below, we don't return an error, just in case the admin
|
|
|
|
* was right, and we're wrong.
|
|
|
|
*/
|
|
|
|
if (strncasecmp(name, "iqn.", strlen("iqn.")) == 0) {
|
|
|
|
for (i = strlen("iqn."); name[i] != '\0'; i++) {
|
|
|
|
/*
|
|
|
|
* XXX: We should verify UTF-8 normalisation, as defined
|
|
|
|
* by 3.2.6.2: iSCSI Name Encoding.
|
|
|
|
*/
|
|
|
|
if (isalnum(name[i]))
|
|
|
|
continue;
|
|
|
|
if (name[i] == '-' || name[i] == '.' || name[i] == ':')
|
|
|
|
continue;
|
|
|
|
log_warnx("invalid character \"%c\" in target name "
|
|
|
|
"\"%s\"; allowed characters are letters, digits, "
|
|
|
|
"'-', '.', and ':'", name[i], name);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* XXX: Check more stuff: valid date and a valid reversed domain.
|
|
|
|
*/
|
|
|
|
} else if (strncasecmp(name, "eui.", strlen("eui.")) == 0) {
|
|
|
|
if (strlen(name) != strlen("eui.") + 16)
|
|
|
|
log_warnx("invalid target name \"%s\"; the \"eui.\" "
|
|
|
|
"should be followed by exactly 16 hexadecimal "
|
|
|
|
"digits", name);
|
|
|
|
for (i = strlen("eui."); name[i] != '\0'; i++) {
|
|
|
|
if (!valid_hex(name[i])) {
|
|
|
|
log_warnx("invalid character \"%c\" in target "
|
|
|
|
"name \"%s\"; allowed characters are 1-9 "
|
|
|
|
"and A-F", name[i], name);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else if (strncasecmp(name, "naa.", strlen("naa.")) == 0) {
|
|
|
|
if (strlen(name) > strlen("naa.") + 32)
|
|
|
|
log_warnx("invalid target name \"%s\"; the \"naa.\" "
|
|
|
|
"should be followed by at most 32 hexadecimal "
|
|
|
|
"digits", name);
|
|
|
|
for (i = strlen("naa."); name[i] != '\0'; i++) {
|
|
|
|
if (!valid_hex(name[i])) {
|
|
|
|
log_warnx("invalid character \"%c\" in target "
|
|
|
|
"name \"%s\"; allowed characters are 1-9 "
|
|
|
|
"and A-F", name[i], name);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
log_warnx("invalid target name \"%s\"; should start with "
|
|
|
|
"either \".iqn\", \"eui.\", or \"naa.\"",
|
|
|
|
name);
|
|
|
|
}
|
|
|
|
return (true);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct target *
|
|
|
|
target_new(struct conf *conf, const char *iqn)
|
|
|
|
{
|
|
|
|
struct target *targ;
|
|
|
|
int i, len;
|
|
|
|
|
|
|
|
targ = target_find(conf, iqn);
|
|
|
|
if (targ != NULL) {
|
|
|
|
log_warnx("duplicated target \"%s\"", iqn);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
if (valid_iscsi_name(iqn) == false) {
|
|
|
|
log_warnx("target name \"%s\" is invalid", iqn);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
targ = calloc(1, sizeof(*targ));
|
|
|
|
if (targ == NULL)
|
|
|
|
log_err(1, "calloc");
|
|
|
|
targ->t_iqn = checked_strdup(iqn);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* RFC 3722 requires us to normalize the name to lowercase.
|
|
|
|
*/
|
|
|
|
len = strlen(iqn);
|
|
|
|
for (i = 0; i < len; i++)
|
|
|
|
targ->t_iqn[i] = tolower(targ->t_iqn[i]);
|
|
|
|
|
|
|
|
TAILQ_INIT(&targ->t_luns);
|
|
|
|
targ->t_conf = conf;
|
|
|
|
TAILQ_INSERT_TAIL(&conf->conf_targets, targ, t_next);
|
|
|
|
|
|
|
|
return (targ);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
target_delete(struct target *targ)
|
|
|
|
{
|
|
|
|
struct lun *lun, *tmp;
|
|
|
|
|
|
|
|
TAILQ_REMOVE(&targ->t_conf->conf_targets, targ, t_next);
|
|
|
|
|
|
|
|
TAILQ_FOREACH_SAFE(lun, &targ->t_luns, l_next, tmp)
|
|
|
|
lun_delete(lun);
|
|
|
|
free(targ->t_iqn);
|
|
|
|
free(targ);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct target *
|
|
|
|
target_find(struct conf *conf, const char *iqn)
|
|
|
|
{
|
|
|
|
struct target *targ;
|
|
|
|
|
|
|
|
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
|
|
|
if (strcasecmp(targ->t_iqn, iqn) == 0)
|
|
|
|
return (targ);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct lun *
|
|
|
|
lun_new(struct target *targ, int lun_id)
|
|
|
|
{
|
|
|
|
struct lun *lun;
|
|
|
|
|
|
|
|
lun = lun_find(targ, lun_id);
|
|
|
|
if (lun != NULL) {
|
|
|
|
log_warnx("duplicated lun %d for target \"%s\"",
|
|
|
|
lun_id, targ->t_iqn);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
lun = calloc(1, sizeof(*lun));
|
|
|
|
if (lun == NULL)
|
|
|
|
log_err(1, "calloc");
|
|
|
|
lun->l_lun = lun_id;
|
|
|
|
TAILQ_INIT(&lun->l_options);
|
|
|
|
lun->l_target = targ;
|
|
|
|
TAILQ_INSERT_TAIL(&targ->t_luns, lun, l_next);
|
|
|
|
|
|
|
|
return (lun);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_delete(struct lun *lun)
|
|
|
|
{
|
|
|
|
struct lun_option *lo, *tmp;
|
|
|
|
|
|
|
|
TAILQ_REMOVE(&lun->l_target->t_luns, lun, l_next);
|
|
|
|
|
|
|
|
TAILQ_FOREACH_SAFE(lo, &lun->l_options, lo_next, tmp)
|
|
|
|
lun_option_delete(lo);
|
|
|
|
free(lun->l_backend);
|
|
|
|
free(lun->l_device_id);
|
|
|
|
free(lun->l_path);
|
|
|
|
free(lun->l_serial);
|
|
|
|
free(lun);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct lun *
|
|
|
|
lun_find(struct target *targ, int lun_id)
|
|
|
|
{
|
|
|
|
struct lun *lun;
|
|
|
|
|
|
|
|
TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
|
|
|
|
if (lun->l_lun == lun_id)
|
|
|
|
return (lun);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_backend(struct lun *lun, const char *value)
|
|
|
|
{
|
|
|
|
free(lun->l_backend);
|
|
|
|
lun->l_backend = checked_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_blocksize(struct lun *lun, size_t value)
|
|
|
|
{
|
|
|
|
|
|
|
|
lun->l_blocksize = value;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_device_id(struct lun *lun, const char *value)
|
|
|
|
{
|
|
|
|
free(lun->l_device_id);
|
|
|
|
lun->l_device_id = checked_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_path(struct lun *lun, const char *value)
|
|
|
|
{
|
|
|
|
free(lun->l_path);
|
|
|
|
lun->l_path = checked_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_serial(struct lun *lun, const char *value)
|
|
|
|
{
|
|
|
|
free(lun->l_serial);
|
|
|
|
lun->l_serial = checked_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_size(struct lun *lun, size_t value)
|
|
|
|
{
|
|
|
|
|
|
|
|
lun->l_size = value;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_set_ctl_lun(struct lun *lun, uint32_t value)
|
|
|
|
{
|
|
|
|
|
|
|
|
lun->l_ctl_lun = value;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct lun_option *
|
|
|
|
lun_option_new(struct lun *lun, const char *name, const char *value)
|
|
|
|
{
|
|
|
|
struct lun_option *lo;
|
|
|
|
|
|
|
|
lo = lun_option_find(lun, name);
|
|
|
|
if (lo != NULL) {
|
|
|
|
log_warnx("duplicated lun option %s for lun %d, target \"%s\"",
|
|
|
|
name, lun->l_lun, lun->l_target->t_iqn);
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
lo = calloc(1, sizeof(*lo));
|
|
|
|
if (lo == NULL)
|
|
|
|
log_err(1, "calloc");
|
|
|
|
lo->lo_name = checked_strdup(name);
|
|
|
|
lo->lo_value = checked_strdup(value);
|
|
|
|
lo->lo_lun = lun;
|
|
|
|
TAILQ_INSERT_TAIL(&lun->l_options, lo, lo_next);
|
|
|
|
|
|
|
|
return (lo);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_option_delete(struct lun_option *lo)
|
|
|
|
{
|
|
|
|
|
|
|
|
TAILQ_REMOVE(&lo->lo_lun->l_options, lo, lo_next);
|
|
|
|
|
|
|
|
free(lo->lo_name);
|
|
|
|
free(lo->lo_value);
|
|
|
|
free(lo);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct lun_option *
|
|
|
|
lun_option_find(struct lun *lun, const char *name)
|
|
|
|
{
|
|
|
|
struct lun_option *lo;
|
|
|
|
|
|
|
|
TAILQ_FOREACH(lo, &lun->l_options, lo_next) {
|
|
|
|
if (strcmp(lo->lo_name, name) == 0)
|
|
|
|
return (lo);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
lun_option_set(struct lun_option *lo, const char *value)
|
|
|
|
{
|
|
|
|
|
|
|
|
free(lo->lo_value);
|
|
|
|
lo->lo_value = checked_strdup(value);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct connection *
|
|
|
|
connection_new(struct portal *portal, int fd, const char *host)
|
|
|
|
{
|
|
|
|
struct connection *conn;
|
|
|
|
|
|
|
|
conn = calloc(1, sizeof(*conn));
|
|
|
|
if (conn == NULL)
|
|
|
|
log_err(1, "calloc");
|
|
|
|
conn->conn_portal = portal;
|
|
|
|
conn->conn_socket = fd;
|
|
|
|
conn->conn_initiator_addr = checked_strdup(host);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Default values, from RFC 3720, section 12.
|
|
|
|
*/
|
|
|
|
conn->conn_max_data_segment_length = 8192;
|
|
|
|
conn->conn_max_burst_length = 262144;
|
|
|
|
conn->conn_immediate_data = true;
|
|
|
|
|
|
|
|
return (conn);
|
|
|
|
}
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
static void
|
|
|
|
conf_print(struct conf *conf)
|
|
|
|
{
|
|
|
|
struct auth_group *ag;
|
|
|
|
struct auth *auth;
|
|
|
|
struct portal_group *pg;
|
|
|
|
struct portal *portal;
|
|
|
|
struct target *targ;
|
|
|
|
struct lun *lun;
|
|
|
|
struct lun_option *lo;
|
|
|
|
|
|
|
|
TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
|
|
|
|
fprintf(stderr, "auth-group %s {\n", ag->ag_name);
|
|
|
|
TAILQ_FOREACH(auth, &ag->ag_auths, a_next)
|
|
|
|
fprintf(stderr, "\t chap-mutual %s %s %s %s\n",
|
|
|
|
auth->a_user, auth->a_secret,
|
|
|
|
auth->a_mutual_user, auth->a_mutual_secret);
|
|
|
|
fprintf(stderr, "}\n");
|
|
|
|
}
|
|
|
|
TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
|
|
|
|
fprintf(stderr, "portal-group %s {\n", pg->pg_name);
|
|
|
|
TAILQ_FOREACH(portal, &pg->pg_portals, p_next)
|
|
|
|
fprintf(stderr, "\t listen %s\n", portal->p_listen);
|
|
|
|
fprintf(stderr, "}\n");
|
|
|
|
}
|
|
|
|
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
|
|
|
fprintf(stderr, "target %s {\n", targ->t_iqn);
|
|
|
|
if (targ->t_alias != NULL)
|
|
|
|
fprintf(stderr, "\t alias %s\n", targ->t_alias);
|
|
|
|
TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
|
|
|
|
fprintf(stderr, "\tlun %d {\n", lun->l_lun);
|
|
|
|
fprintf(stderr, "\t\tpath %s\n", lun->l_path);
|
|
|
|
TAILQ_FOREACH(lo, &lun->l_options, lo_next)
|
|
|
|
fprintf(stderr, "\t\toption %s %s\n",
|
|
|
|
lo->lo_name, lo->lo_value);
|
|
|
|
fprintf(stderr, "\t}\n");
|
|
|
|
}
|
|
|
|
fprintf(stderr, "}\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2014-02-11 10:53:08 +00:00
|
|
|
static int
|
|
|
|
conf_verify_lun(struct lun *lun)
|
|
|
|
{
|
|
|
|
const struct lun *lun2;
|
2014-02-11 10:55:32 +00:00
|
|
|
const struct target *targ2;
|
2014-02-11 10:53:08 +00:00
|
|
|
|
|
|
|
if (lun->l_backend == NULL)
|
|
|
|
lun_set_backend(lun, "block");
|
|
|
|
if (strcmp(lun->l_backend, "block") == 0) {
|
|
|
|
if (lun->l_path == NULL) {
|
|
|
|
log_warnx("missing path for lun %d, target \"%s\"",
|
|
|
|
lun->l_lun, lun->l_target->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
} else if (strcmp(lun->l_backend, "ramdisk") == 0) {
|
|
|
|
if (lun->l_size == 0) {
|
|
|
|
log_warnx("missing size for ramdisk-backed lun %d, "
|
|
|
|
"target \"%s\"", lun->l_lun, lun->l_target->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (lun->l_path != NULL) {
|
|
|
|
log_warnx("path must not be specified "
|
|
|
|
"for ramdisk-backed lun %d, target \"%s\"",
|
|
|
|
lun->l_lun, lun->l_target->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (lun->l_lun < 0 || lun->l_lun > 255) {
|
|
|
|
log_warnx("invalid lun number for lun %d, target \"%s\"; "
|
|
|
|
"must be between 0 and 255", lun->l_lun,
|
|
|
|
lun->l_target->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (lun->l_blocksize == 0) {
|
|
|
|
lun_set_blocksize(lun, DEFAULT_BLOCKSIZE);
|
|
|
|
} else if (lun->l_blocksize < 0) {
|
|
|
|
log_warnx("invalid blocksize for lun %d, target \"%s\"; "
|
|
|
|
"must be larger than 0", lun->l_lun, lun->l_target->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (lun->l_size != 0 && lun->l_size % lun->l_blocksize != 0) {
|
|
|
|
log_warnx("invalid size for lun %d, target \"%s\"; "
|
|
|
|
"must be multiple of blocksize", lun->l_lun,
|
|
|
|
lun->l_target->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
2014-02-11 10:55:32 +00:00
|
|
|
TAILQ_FOREACH(targ2, &lun->l_target->t_conf->conf_targets, t_next) {
|
|
|
|
TAILQ_FOREACH(lun2, &targ2->t_luns, l_next) {
|
|
|
|
if (lun == lun2)
|
|
|
|
continue;
|
|
|
|
if (lun->l_path != NULL && lun2->l_path != NULL &&
|
|
|
|
strcmp(lun->l_path, lun2->l_path) == 0) {
|
|
|
|
log_debugx("WARNING: path \"%s\" duplicated "
|
|
|
|
"between lun %d, target \"%s\", and "
|
|
|
|
"lun %d, target \"%s\"", lun->l_path,
|
|
|
|
lun->l_lun, lun->l_target->t_iqn,
|
|
|
|
lun2->l_lun, lun2->l_target->t_iqn);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2014-02-11 10:53:08 +00:00
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2013-09-14 15:29:06 +00:00
|
|
|
int
|
|
|
|
conf_verify(struct conf *conf)
|
|
|
|
{
|
|
|
|
struct auth_group *ag;
|
|
|
|
struct portal_group *pg;
|
|
|
|
struct target *targ;
|
2014-02-11 10:53:08 +00:00
|
|
|
struct lun *lun;
|
2013-09-14 15:29:06 +00:00
|
|
|
bool found_lun0;
|
2014-02-11 10:53:08 +00:00
|
|
|
int error;
|
2013-09-14 15:29:06 +00:00
|
|
|
|
|
|
|
if (conf->conf_pidfile_path == NULL)
|
|
|
|
conf->conf_pidfile_path = checked_strdup(DEFAULT_PIDFILE);
|
|
|
|
|
|
|
|
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
|
|
|
if (targ->t_auth_group == NULL) {
|
|
|
|
log_warnx("missing authentication for target \"%s\"; "
|
|
|
|
"must specify either \"auth-group\", \"chap\", "
|
|
|
|
"or \"chap-mutual\"", targ->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
if (targ->t_portal_group == NULL) {
|
|
|
|
targ->t_portal_group = portal_group_find(conf,
|
|
|
|
"default");
|
|
|
|
assert(targ->t_portal_group != NULL);
|
|
|
|
}
|
|
|
|
found_lun0 = false;
|
|
|
|
TAILQ_FOREACH(lun, &targ->t_luns, l_next) {
|
2014-02-11 10:53:08 +00:00
|
|
|
error = conf_verify_lun(lun);
|
|
|
|
if (error != 0)
|
|
|
|
return (error);
|
2013-09-14 15:29:06 +00:00
|
|
|
if (lun->l_lun == 0)
|
|
|
|
found_lun0 = true;
|
|
|
|
}
|
|
|
|
if (!found_lun0) {
|
|
|
|
log_warnx("mandatory LUN 0 not configured "
|
|
|
|
"for target \"%s\"", targ->t_iqn);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
|
|
|
|
assert(pg->pg_name != NULL);
|
|
|
|
if (pg->pg_discovery_auth_group == NULL) {
|
|
|
|
pg->pg_discovery_auth_group =
|
|
|
|
auth_group_find(conf, "no-access");
|
|
|
|
assert(pg->pg_discovery_auth_group != NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
|
|
|
if (targ->t_portal_group == pg)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (targ == NULL) {
|
|
|
|
if (strcmp(pg->pg_name, "default") != 0)
|
|
|
|
log_warnx("portal-group \"%s\" not assigned "
|
|
|
|
"to any target", pg->pg_name);
|
|
|
|
pg->pg_unassigned = true;
|
|
|
|
} else
|
|
|
|
pg->pg_unassigned = false;
|
|
|
|
}
|
|
|
|
TAILQ_FOREACH(ag, &conf->conf_auth_groups, ag_next) {
|
|
|
|
if (ag->ag_name == NULL)
|
|
|
|
assert(ag->ag_target != NULL);
|
|
|
|
else
|
|
|
|
assert(ag->ag_target == NULL);
|
|
|
|
|
|
|
|
TAILQ_FOREACH(targ, &conf->conf_targets, t_next) {
|
|
|
|
if (targ->t_auth_group == ag)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (targ == NULL && ag->ag_name != NULL &&
|
|
|
|
strcmp(ag->ag_name, "no-authentication") != 0 &&
|
|
|
|
strcmp(ag->ag_name, "no-access") != 0) {
|
|
|
|
log_warnx("auth-group \"%s\" not assigned "
|
|
|
|
"to any target", ag->ag_name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
conf_apply(struct conf *oldconf, struct conf *newconf)
|
|
|
|
{
|
|
|
|
struct target *oldtarg, *newtarg, *tmptarg;
|
|
|
|
struct lun *oldlun, *newlun, *tmplun;
|
|
|
|
struct portal_group *oldpg, *newpg;
|
|
|
|
struct portal *oldp, *newp;
|
|
|
|
pid_t otherpid;
|
|
|
|
int changed, cumulated_error = 0, error;
|
|
|
|
#ifndef ICL_KERNEL_PROXY
|
|
|
|
int one = 1;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (oldconf->conf_debug != newconf->conf_debug) {
|
|
|
|
log_debugx("changing debug level to %d", newconf->conf_debug);
|
|
|
|
log_init(newconf->conf_debug);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (oldconf->conf_pidfh != NULL) {
|
|
|
|
assert(oldconf->conf_pidfile_path != NULL);
|
|
|
|
if (newconf->conf_pidfile_path != NULL &&
|
|
|
|
strcmp(oldconf->conf_pidfile_path,
|
|
|
|
newconf->conf_pidfile_path) == 0) {
|
|
|
|
newconf->conf_pidfh = oldconf->conf_pidfh;
|
|
|
|
oldconf->conf_pidfh = NULL;
|
|
|
|
} else {
|
|
|
|
log_debugx("removing pidfile %s",
|
|
|
|
oldconf->conf_pidfile_path);
|
|
|
|
pidfile_remove(oldconf->conf_pidfh);
|
|
|
|
oldconf->conf_pidfh = NULL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (newconf->conf_pidfh == NULL && newconf->conf_pidfile_path != NULL) {
|
|
|
|
log_debugx("opening pidfile %s", newconf->conf_pidfile_path);
|
|
|
|
newconf->conf_pidfh =
|
|
|
|
pidfile_open(newconf->conf_pidfile_path, 0600, &otherpid);
|
|
|
|
if (newconf->conf_pidfh == NULL) {
|
|
|
|
if (errno == EEXIST)
|
|
|
|
log_errx(1, "daemon already running, pid: %jd.",
|
|
|
|
(intmax_t)otherpid);
|
|
|
|
log_err(1, "cannot open or create pidfile \"%s\"",
|
|
|
|
newconf->conf_pidfile_path);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
TAILQ_FOREACH_SAFE(oldtarg, &oldconf->conf_targets, t_next, tmptarg) {
|
|
|
|
/*
|
|
|
|
* First, remove any targets present in the old configuration
|
|
|
|
* and missing in the new one.
|
|
|
|
*/
|
|
|
|
newtarg = target_find(newconf, oldtarg->t_iqn);
|
|
|
|
if (newtarg == NULL) {
|
|
|
|
TAILQ_FOREACH_SAFE(oldlun, &oldtarg->t_luns, l_next,
|
|
|
|
tmplun) {
|
|
|
|
log_debugx("target %s not found in the "
|
|
|
|
"configuration file; removing its lun %d, "
|
|
|
|
"backed by CTL lun %d",
|
|
|
|
oldtarg->t_iqn, oldlun->l_lun,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
error = kernel_lun_remove(oldlun);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warnx("failed to remove lun %d, "
|
|
|
|
"target %s, CTL lun %d",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
cumulated_error++;
|
|
|
|
}
|
|
|
|
lun_delete(oldlun);
|
|
|
|
}
|
|
|
|
target_delete(oldtarg);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Second, remove any LUNs present in the old target
|
|
|
|
* and missing in the new one.
|
|
|
|
*/
|
|
|
|
TAILQ_FOREACH_SAFE(oldlun, &oldtarg->t_luns, l_next, tmplun) {
|
|
|
|
newlun = lun_find(newtarg, oldlun->l_lun);
|
|
|
|
if (newlun == NULL) {
|
|
|
|
log_debugx("lun %d, target %s, CTL lun %d "
|
|
|
|
"not found in the configuration file; "
|
|
|
|
"removing", oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
error = kernel_lun_remove(oldlun);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warnx("failed to remove lun %d, "
|
|
|
|
"target %s, CTL lun %d",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
cumulated_error++;
|
|
|
|
}
|
|
|
|
lun_delete(oldlun);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Also remove the LUNs changed by more than size.
|
|
|
|
*/
|
|
|
|
changed = 0;
|
|
|
|
assert(oldlun->l_backend != NULL);
|
|
|
|
assert(newlun->l_backend != NULL);
|
|
|
|
if (strcmp(newlun->l_backend, oldlun->l_backend) != 0) {
|
|
|
|
log_debugx("backend for lun %d, target %s, "
|
|
|
|
"CTL lun %d changed; removing",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
changed = 1;
|
|
|
|
}
|
|
|
|
if (oldlun->l_blocksize != newlun->l_blocksize) {
|
|
|
|
log_debugx("blocksize for lun %d, target %s, "
|
|
|
|
"CTL lun %d changed; removing",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
changed = 1;
|
|
|
|
}
|
|
|
|
if (newlun->l_device_id != NULL &&
|
|
|
|
(oldlun->l_device_id == NULL ||
|
|
|
|
strcmp(oldlun->l_device_id, newlun->l_device_id) !=
|
|
|
|
0)) {
|
|
|
|
log_debugx("device-id for lun %d, target %s, "
|
|
|
|
"CTL lun %d changed; removing",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
changed = 1;
|
|
|
|
}
|
|
|
|
if (newlun->l_path != NULL &&
|
|
|
|
(oldlun->l_path == NULL ||
|
|
|
|
strcmp(oldlun->l_path, newlun->l_path) != 0)) {
|
|
|
|
log_debugx("path for lun %d, target %s, "
|
|
|
|
"CTL lun %d, changed; removing",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
changed = 1;
|
|
|
|
}
|
|
|
|
if (newlun->l_serial != NULL &&
|
|
|
|
(oldlun->l_serial == NULL ||
|
|
|
|
strcmp(oldlun->l_serial, newlun->l_serial) != 0)) {
|
|
|
|
log_debugx("serial for lun %d, target %s, "
|
|
|
|
"CTL lun %d changed; removing",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
changed = 1;
|
|
|
|
}
|
|
|
|
if (changed) {
|
|
|
|
error = kernel_lun_remove(oldlun);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warnx("failed to remove lun %d, "
|
|
|
|
"target %s, CTL lun %d",
|
|
|
|
oldlun->l_lun, oldtarg->t_iqn,
|
|
|
|
oldlun->l_ctl_lun);
|
|
|
|
cumulated_error++;
|
|
|
|
}
|
|
|
|
lun_delete(oldlun);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
lun_set_ctl_lun(newlun, oldlun->l_ctl_lun);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Now add new targets or modify existing ones.
|
|
|
|
*/
|
|
|
|
TAILQ_FOREACH(newtarg, &newconf->conf_targets, t_next) {
|
|
|
|
oldtarg = target_find(oldconf, newtarg->t_iqn);
|
|
|
|
|
|
|
|
TAILQ_FOREACH(newlun, &newtarg->t_luns, l_next) {
|
|
|
|
if (oldtarg != NULL) {
|
|
|
|
oldlun = lun_find(oldtarg, newlun->l_lun);
|
|
|
|
if (oldlun != NULL) {
|
|
|
|
if (newlun->l_size != oldlun->l_size) {
|
|
|
|
log_debugx("resizing lun %d, "
|
|
|
|
"target %s, CTL lun %d",
|
|
|
|
newlun->l_lun,
|
|
|
|
newtarg->t_iqn,
|
|
|
|
newlun->l_ctl_lun);
|
|
|
|
error =
|
|
|
|
kernel_lun_resize(newlun);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warnx("failed to "
|
|
|
|
"resize lun %d, "
|
|
|
|
"target %s, "
|
|
|
|
"CTL lun %d",
|
|
|
|
newlun->l_lun,
|
|
|
|
newtarg->t_iqn,
|
|
|
|
newlun->l_lun);
|
|
|
|
cumulated_error++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
log_debugx("adding lun %d, target %s",
|
|
|
|
newlun->l_lun, newtarg->t_iqn);
|
|
|
|
error = kernel_lun_add(newlun);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warnx("failed to add lun %d, target %s",
|
|
|
|
newlun->l_lun, newtarg->t_iqn);
|
|
|
|
cumulated_error++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Go through the new portals, opening the sockets as neccessary.
|
|
|
|
*/
|
|
|
|
TAILQ_FOREACH(newpg, &newconf->conf_portal_groups, pg_next) {
|
|
|
|
if (newpg->pg_unassigned) {
|
|
|
|
log_debugx("not listening on portal-group \"%s\", "
|
|
|
|
"not assigned to any target",
|
|
|
|
newpg->pg_name);
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
TAILQ_FOREACH(newp, &newpg->pg_portals, p_next) {
|
|
|
|
/*
|
|
|
|
* Try to find already open portal and reuse
|
|
|
|
* the listening socket. We don't care about
|
|
|
|
* what portal or portal group that was, what
|
|
|
|
* matters is the listening address.
|
|
|
|
*/
|
|
|
|
TAILQ_FOREACH(oldpg, &oldconf->conf_portal_groups,
|
|
|
|
pg_next) {
|
|
|
|
TAILQ_FOREACH(oldp, &oldpg->pg_portals,
|
|
|
|
p_next) {
|
|
|
|
if (strcmp(newp->p_listen,
|
|
|
|
oldp->p_listen) == 0 &&
|
|
|
|
oldp->p_socket > 0) {
|
|
|
|
newp->p_socket =
|
|
|
|
oldp->p_socket;
|
|
|
|
oldp->p_socket = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (newp->p_socket > 0) {
|
|
|
|
/*
|
|
|
|
* We're done with this portal.
|
|
|
|
*/
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
|
|
log_debugx("listening on %s, portal-group \"%s\" using ICL proxy",
|
|
|
|
newp->p_listen, newpg->pg_name);
|
|
|
|
kernel_listen(newp->p_ai, newp->p_iser);
|
|
|
|
#else
|
|
|
|
assert(newp->p_iser == false);
|
|
|
|
|
|
|
|
log_debugx("listening on %s, portal-group \"%s\"",
|
|
|
|
newp->p_listen, newpg->pg_name);
|
|
|
|
newp->p_socket = socket(newp->p_ai->ai_family,
|
|
|
|
newp->p_ai->ai_socktype,
|
|
|
|
newp->p_ai->ai_protocol);
|
|
|
|
if (newp->p_socket < 0) {
|
|
|
|
log_warn("socket(2) failed for %s",
|
|
|
|
newp->p_listen);
|
|
|
|
cumulated_error++;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
error = setsockopt(newp->p_socket, SOL_SOCKET,
|
|
|
|
SO_REUSEADDR, &one, sizeof(one));
|
|
|
|
if (error != 0) {
|
|
|
|
log_warn("setsockopt(SO_REUSEADDR) failed "
|
|
|
|
"for %s", newp->p_listen);
|
|
|
|
close(newp->p_socket);
|
|
|
|
newp->p_socket = 0;
|
|
|
|
cumulated_error++;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
error = bind(newp->p_socket, newp->p_ai->ai_addr,
|
|
|
|
newp->p_ai->ai_addrlen);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warn("bind(2) failed for %s",
|
|
|
|
newp->p_listen);
|
|
|
|
close(newp->p_socket);
|
|
|
|
newp->p_socket = 0;
|
|
|
|
cumulated_error++;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
error = listen(newp->p_socket, -1);
|
|
|
|
if (error != 0) {
|
|
|
|
log_warn("listen(2) failed for %s",
|
|
|
|
newp->p_listen);
|
|
|
|
close(newp->p_socket);
|
|
|
|
newp->p_socket = 0;
|
|
|
|
cumulated_error++;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
#endif /* !ICL_KERNEL_PROXY */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Go through the no longer used sockets, closing them.
|
|
|
|
*/
|
|
|
|
TAILQ_FOREACH(oldpg, &oldconf->conf_portal_groups, pg_next) {
|
|
|
|
TAILQ_FOREACH(oldp, &oldpg->pg_portals, p_next) {
|
|
|
|
if (oldp->p_socket <= 0)
|
|
|
|
continue;
|
|
|
|
log_debugx("closing socket for %s, portal-group \"%s\"",
|
|
|
|
oldp->p_listen, oldpg->pg_name);
|
|
|
|
close(oldp->p_socket);
|
|
|
|
oldp->p_socket = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (cumulated_error);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool
|
|
|
|
timed_out(void)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (sigalrm_received);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
sigalrm_handler(int dummy __unused)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* It would be easiest to just log an error and exit. We can't
|
|
|
|
* do this, though, because log_errx() is not signal safe, since
|
|
|
|
* it calls syslog(3). Instead, set a flag checked by pdu_send()
|
|
|
|
* and pdu_receive(), to call log_errx() there. Should they fail
|
|
|
|
* to notice, we'll exit here one second later.
|
|
|
|
*/
|
|
|
|
if (sigalrm_received) {
|
|
|
|
/*
|
|
|
|
* Oh well. Just give up and quit.
|
|
|
|
*/
|
|
|
|
_exit(2);
|
|
|
|
}
|
|
|
|
|
|
|
|
sigalrm_received = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
set_timeout(const struct conf *conf)
|
|
|
|
{
|
|
|
|
struct sigaction sa;
|
|
|
|
struct itimerval itv;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
if (conf->conf_timeout <= 0) {
|
|
|
|
log_debugx("session timeout disabled");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
bzero(&sa, sizeof(sa));
|
|
|
|
sa.sa_handler = sigalrm_handler;
|
|
|
|
sigfillset(&sa.sa_mask);
|
|
|
|
error = sigaction(SIGALRM, &sa, NULL);
|
|
|
|
if (error != 0)
|
|
|
|
log_err(1, "sigaction");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* First SIGALRM will arive after conf_timeout seconds.
|
|
|
|
* If we do nothing, another one will arrive a second later.
|
|
|
|
*/
|
|
|
|
bzero(&itv, sizeof(itv));
|
|
|
|
itv.it_interval.tv_sec = 1;
|
|
|
|
itv.it_value.tv_sec = conf->conf_timeout;
|
|
|
|
|
|
|
|
log_debugx("setting session timeout to %d seconds",
|
|
|
|
conf->conf_timeout);
|
|
|
|
error = setitimer(ITIMER_REAL, &itv, NULL);
|
|
|
|
if (error != 0)
|
|
|
|
log_err(1, "setitimer");
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
wait_for_children(bool block)
|
|
|
|
{
|
|
|
|
pid_t pid;
|
|
|
|
int status;
|
|
|
|
int num = 0;
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
/*
|
|
|
|
* If "block" is true, wait for at least one process.
|
|
|
|
*/
|
|
|
|
if (block && num == 0)
|
|
|
|
pid = wait4(-1, &status, 0, NULL);
|
|
|
|
else
|
|
|
|
pid = wait4(-1, &status, WNOHANG, NULL);
|
|
|
|
if (pid <= 0)
|
|
|
|
break;
|
|
|
|
if (WIFSIGNALED(status)) {
|
|
|
|
log_warnx("child process %d terminated with signal %d",
|
|
|
|
pid, WTERMSIG(status));
|
|
|
|
} else if (WEXITSTATUS(status) != 0) {
|
|
|
|
log_warnx("child process %d terminated with exit status %d",
|
|
|
|
pid, WEXITSTATUS(status));
|
|
|
|
} else {
|
|
|
|
log_debugx("child process %d terminated gracefully", pid);
|
|
|
|
}
|
|
|
|
num++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (num);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
handle_connection(struct portal *portal, int fd, bool dont_fork)
|
|
|
|
{
|
|
|
|
struct connection *conn;
|
|
|
|
#ifndef ICL_KERNEL_PROXY
|
|
|
|
struct sockaddr_storage ss;
|
|
|
|
socklen_t sslen = sizeof(ss);
|
|
|
|
int error;
|
|
|
|
#endif
|
|
|
|
pid_t pid;
|
|
|
|
char host[NI_MAXHOST + 1];
|
|
|
|
struct conf *conf;
|
|
|
|
|
|
|
|
conf = portal->p_portal_group->pg_conf;
|
|
|
|
|
|
|
|
if (dont_fork) {
|
|
|
|
log_debugx("incoming connection; not forking due to -d flag");
|
|
|
|
} else {
|
|
|
|
nchildren -= wait_for_children(false);
|
|
|
|
assert(nchildren >= 0);
|
|
|
|
|
|
|
|
while (conf->conf_maxproc > 0 && nchildren >= conf->conf_maxproc) {
|
|
|
|
log_debugx("maxproc limit of %d child processes hit; "
|
|
|
|
"waiting for child process to exit", conf->conf_maxproc);
|
|
|
|
nchildren -= wait_for_children(true);
|
|
|
|
assert(nchildren >= 0);
|
|
|
|
}
|
|
|
|
log_debugx("incoming connection; forking child process #%d",
|
|
|
|
nchildren);
|
|
|
|
nchildren++;
|
|
|
|
pid = fork();
|
|
|
|
if (pid < 0)
|
|
|
|
log_err(1, "fork");
|
|
|
|
if (pid > 0) {
|
|
|
|
close(fd);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
pidfile_close(conf->conf_pidfh);
|
|
|
|
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
|
|
/*
|
|
|
|
* XXX
|
|
|
|
*/
|
|
|
|
log_set_peer_addr("XXX");
|
|
|
|
#else
|
|
|
|
error = getpeername(fd, (struct sockaddr *)&ss, &sslen);
|
|
|
|
if (error != 0)
|
|
|
|
log_err(1, "getpeername");
|
|
|
|
error = getnameinfo((struct sockaddr *)&ss, sslen,
|
|
|
|
host, sizeof(host), NULL, 0, NI_NUMERICHOST);
|
|
|
|
if (error != 0)
|
|
|
|
log_errx(1, "getaddrinfo: %s", gai_strerror(error));
|
|
|
|
|
|
|
|
log_debugx("accepted connection from %s; portal group \"%s\"",
|
|
|
|
host, portal->p_portal_group->pg_name);
|
|
|
|
log_set_peer_addr(host);
|
|
|
|
setproctitle("%s", host);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
conn = connection_new(portal, fd, host);
|
|
|
|
set_timeout(conf);
|
|
|
|
kernel_capsicate();
|
|
|
|
login(conn);
|
|
|
|
if (conn->conn_session_type == CONN_SESSION_TYPE_NORMAL) {
|
|
|
|
kernel_handoff(conn);
|
|
|
|
log_debugx("connection handed off to the kernel");
|
|
|
|
} else {
|
|
|
|
assert(conn->conn_session_type == CONN_SESSION_TYPE_DISCOVERY);
|
|
|
|
discovery(conn);
|
|
|
|
}
|
|
|
|
log_debugx("nothing more to do; exiting");
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef ICL_KERNEL_PROXY
|
|
|
|
static int
|
|
|
|
fd_add(int fd, fd_set *fdset, int nfds)
|
|
|
|
{
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Skip sockets which we failed to bind.
|
|
|
|
*/
|
|
|
|
if (fd <= 0)
|
|
|
|
return (nfds);
|
|
|
|
|
|
|
|
FD_SET(fd, fdset);
|
|
|
|
if (fd > nfds)
|
|
|
|
nfds = fd;
|
|
|
|
return (nfds);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static void
|
|
|
|
main_loop(struct conf *conf, bool dont_fork)
|
|
|
|
{
|
|
|
|
struct portal_group *pg;
|
|
|
|
struct portal *portal;
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
|
|
int connection_id;
|
|
|
|
#else
|
|
|
|
fd_set fdset;
|
|
|
|
int error, nfds, client_fd;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
pidfile_write(conf->conf_pidfh);
|
|
|
|
|
|
|
|
for (;;) {
|
|
|
|
if (sighup_received || sigterm_received)
|
|
|
|
return;
|
|
|
|
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
|
|
connection_id = kernel_accept();
|
|
|
|
if (connection_id == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX: This is obviously temporary.
|
|
|
|
*/
|
|
|
|
pg = TAILQ_FIRST(&conf->conf_portal_groups);
|
|
|
|
portal = TAILQ_FIRST(&pg->pg_portals);
|
|
|
|
|
|
|
|
handle_connection(portal, connection_id, dont_fork);
|
|
|
|
#else
|
|
|
|
FD_ZERO(&fdset);
|
|
|
|
nfds = 0;
|
|
|
|
TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
|
|
|
|
TAILQ_FOREACH(portal, &pg->pg_portals, p_next)
|
|
|
|
nfds = fd_add(portal->p_socket, &fdset, nfds);
|
|
|
|
}
|
|
|
|
error = select(nfds + 1, &fdset, NULL, NULL, NULL);
|
|
|
|
if (error <= 0) {
|
|
|
|
if (errno == EINTR)
|
|
|
|
return;
|
|
|
|
log_err(1, "select");
|
|
|
|
}
|
|
|
|
TAILQ_FOREACH(pg, &conf->conf_portal_groups, pg_next) {
|
|
|
|
TAILQ_FOREACH(portal, &pg->pg_portals, p_next) {
|
|
|
|
if (!FD_ISSET(portal->p_socket, &fdset))
|
|
|
|
continue;
|
|
|
|
client_fd = accept(portal->p_socket, NULL, 0);
|
|
|
|
if (client_fd < 0)
|
|
|
|
log_err(1, "accept");
|
|
|
|
handle_connection(portal, client_fd, dont_fork);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* !ICL_KERNEL_PROXY */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
sighup_handler(int dummy __unused)
|
|
|
|
{
|
|
|
|
|
|
|
|
sighup_received = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
sigterm_handler(int dummy __unused)
|
|
|
|
{
|
|
|
|
|
|
|
|
sigterm_received = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
register_signals(void)
|
|
|
|
{
|
|
|
|
struct sigaction sa;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
bzero(&sa, sizeof(sa));
|
|
|
|
sa.sa_handler = sighup_handler;
|
|
|
|
sigfillset(&sa.sa_mask);
|
|
|
|
error = sigaction(SIGHUP, &sa, NULL);
|
|
|
|
if (error != 0)
|
|
|
|
log_err(1, "sigaction");
|
|
|
|
|
|
|
|
sa.sa_handler = sigterm_handler;
|
|
|
|
error = sigaction(SIGTERM, &sa, NULL);
|
|
|
|
if (error != 0)
|
|
|
|
log_err(1, "sigaction");
|
|
|
|
|
|
|
|
sa.sa_handler = sigterm_handler;
|
|
|
|
error = sigaction(SIGINT, &sa, NULL);
|
|
|
|
if (error != 0)
|
|
|
|
log_err(1, "sigaction");
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
struct conf *oldconf, *newconf, *tmpconf;
|
|
|
|
const char *config_path = DEFAULT_CONFIG_PATH;
|
|
|
|
int debug = 0, ch, error;
|
|
|
|
bool dont_daemonize = false;
|
|
|
|
|
|
|
|
while ((ch = getopt(argc, argv, "df:")) != -1) {
|
|
|
|
switch (ch) {
|
|
|
|
case 'd':
|
|
|
|
dont_daemonize = true;
|
|
|
|
debug++;
|
|
|
|
break;
|
|
|
|
case 'f':
|
|
|
|
config_path = optarg;
|
|
|
|
break;
|
|
|
|
case '?':
|
|
|
|
default:
|
|
|
|
usage();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
argc -= optind;
|
|
|
|
if (argc != 0)
|
|
|
|
usage();
|
|
|
|
|
|
|
|
log_init(debug);
|
|
|
|
kernel_init();
|
|
|
|
|
|
|
|
oldconf = conf_new_from_kernel();
|
|
|
|
newconf = conf_new_from_file(config_path);
|
|
|
|
if (newconf == NULL)
|
|
|
|
log_errx(1, "configuration error, exiting");
|
|
|
|
if (debug > 0) {
|
|
|
|
oldconf->conf_debug = debug;
|
|
|
|
newconf->conf_debug = debug;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef ICL_KERNEL_PROXY
|
|
|
|
log_debugx("enabling CTL iSCSI port");
|
|
|
|
error = kernel_port_on();
|
|
|
|
if (error != 0)
|
|
|
|
log_errx(1, "failed to enable CTL iSCSI port, exiting");
|
|
|
|
#endif
|
|
|
|
|
|
|
|
error = conf_apply(oldconf, newconf);
|
|
|
|
if (error != 0)
|
|
|
|
log_errx(1, "failed to apply configuration, exiting");
|
|
|
|
conf_delete(oldconf);
|
|
|
|
oldconf = NULL;
|
|
|
|
|
|
|
|
register_signals();
|
|
|
|
|
|
|
|
#ifndef ICL_KERNEL_PROXY
|
|
|
|
log_debugx("enabling CTL iSCSI port");
|
|
|
|
error = kernel_port_on();
|
|
|
|
if (error != 0)
|
|
|
|
log_errx(1, "failed to enable CTL iSCSI port, exiting");
|
|
|
|
#endif
|
|
|
|
|
2014-02-11 10:59:57 +00:00
|
|
|
if (dont_daemonize == false) {
|
|
|
|
log_debugx("daemonizing");
|
|
|
|
if (daemon(0, 0) == -1) {
|
|
|
|
log_warn("cannot daemonize");
|
|
|
|
pidfile_remove(newconf->conf_pidfh);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-09-14 15:29:06 +00:00
|
|
|
for (;;) {
|
|
|
|
main_loop(newconf, dont_daemonize);
|
|
|
|
if (sighup_received) {
|
|
|
|
sighup_received = false;
|
|
|
|
log_debugx("received SIGHUP, reloading configuration");
|
|
|
|
tmpconf = conf_new_from_file(config_path);
|
|
|
|
if (tmpconf == NULL) {
|
|
|
|
log_warnx("configuration error, "
|
|
|
|
"continuing with old configuration");
|
|
|
|
} else {
|
|
|
|
if (debug > 0)
|
|
|
|
tmpconf->conf_debug = debug;
|
|
|
|
oldconf = newconf;
|
|
|
|
newconf = tmpconf;
|
|
|
|
error = conf_apply(oldconf, newconf);
|
|
|
|
if (error != 0)
|
|
|
|
log_warnx("failed to reload "
|
|
|
|
"configuration");
|
|
|
|
conf_delete(oldconf);
|
|
|
|
oldconf = NULL;
|
|
|
|
}
|
|
|
|
} else if (sigterm_received) {
|
|
|
|
log_debugx("exiting on signal; "
|
|
|
|
"reloading empty configuration");
|
|
|
|
|
|
|
|
log_debugx("disabling CTL iSCSI port "
|
|
|
|
"and terminating all connections");
|
|
|
|
error = kernel_port_off();
|
|
|
|
if (error != 0)
|
|
|
|
log_warnx("failed to disable CTL iSCSI port");
|
|
|
|
|
|
|
|
oldconf = newconf;
|
|
|
|
newconf = conf_new();
|
|
|
|
if (debug > 0)
|
|
|
|
newconf->conf_debug = debug;
|
|
|
|
error = conf_apply(oldconf, newconf);
|
|
|
|
if (error != 0)
|
|
|
|
log_warnx("failed to apply configuration");
|
|
|
|
|
|
|
|
log_warnx("exiting on signal");
|
|
|
|
exit(0);
|
|
|
|
} else {
|
|
|
|
nchildren -= wait_for_children(false);
|
|
|
|
assert(nchildren >= 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* NOTREACHED */
|
|
|
|
}
|