45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * CDDL HEADER START
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * The contents of this file are subject to the terms of the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Common Development and Distribution License (the "License").
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * You may not use this file except in compliance with the License.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * or http://www.opensolaris.org/os/licensing.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * See the License for the specific language governing permissions
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * and limitations under the License.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * When distributing Covered Code, include this CDDL HEADER in each
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * If applicable, add the following below this CDDL HEADER, with the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * fields enclosed by brackets "[]" replaced with your own identifying
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * information: Portions Copyright [yyyy] [name of copyright owner]
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * CDDL HEADER END
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Use is subject to license terms.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Device allocation related work.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <stdio.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <stdlib.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <errno.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <string.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <strings.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <unistd.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <fcntl.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <sys/types.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <sys/stat.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <sys/dkio.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <sys/wait.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <bsm/devalloc.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#define DEALLOCATE "/usr/sbin/deallocate"
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#define MKDEVALLOC "/usr/sbin/mkdevalloc"
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcelstatic char *_update_dev(deventry_t *, int, const char *, char *, char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkstatic int _make_db();
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcelextern int event_driven;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * _da_check_for_usb
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj * returns 1 if device pointed by 'link' is a removable hotplugged disk,
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * else returns 0.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkint
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk_da_check_for_usb(char *link, char *root_dir)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int fd = -1;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int len, dstsize;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int removable = 0;
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj int hotpluggable = 0;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char *p = NULL;
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj char path[MAXPATHLEN + 4];
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj char rpath[MAXPATHLEN + 4]; /* for ",raw" */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dstsize = sizeof (path);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (strcmp(root_dir, "") != 0) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (strlcat(path, root_dir, dstsize) >= dstsize)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (0);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk len = strlen(path);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk len = 0;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj (void) snprintf(path, dstsize - len, "%s", link);
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj if ((p = realpath(path, rpath)) == NULL) {
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj p = path;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else {
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj if (strstr(link, "rdsk")) {
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj p = rpath;
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj } else {
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj (void) snprintf(path, dstsize, "%s%s", rpath, ",raw");
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj p = path;
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj if ((fd = open(p, O_RDONLY | O_NONBLOCK)) < 0)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (0);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) ioctl(fd, DKIOCREMOVABLE, &removable);
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj (void) ioctl(fd, DKIOCHOTPLUGGABLE, &hotpluggable);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) close(fd);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj if (removable && hotpluggable)
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj return (1);
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj
6e670f775b235d8a831689ffdf4a8f17bbba6b7caj return (0);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * _reset_devalloc
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * If device allocation is being turned on, creates device_allocate
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * device_maps if they do not exist.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Puts DEVICE_ALLOCATION=ON/OFF in device_allocate to indicate if
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * device allocation is on/off.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkvoid
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk_reset_devalloc(int action)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da_args dargs;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (action == DA_ON)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) _make_db();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk else if ((action == DA_OFF) && (open(DEVALLOC, O_RDONLY) == -1))
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (action == DA_ON)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.optflag = DA_ON;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk else if (action == DA_OFF)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.optflag = DA_OFF | DA_ALLOC_ONLY;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.rootdir = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.devnames = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.devinfo = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) da_update_device(&dargs);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * _make_db
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * execs /usr/sbin/mkdevalloc to create device_allocate and
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * device_maps.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkstatic int
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk_make_db()
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int status;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk pid_t pid, wpid;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk pid = vfork();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk switch (pid) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case -1:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (1);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case 0:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (execl(MKDEVALLOC, MKDEVALLOC, DA_IS_LABELED, NULL) == -1)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk exit((errno == ENOENT) ? 0 : 1);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk default:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk for (;;) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk wpid = waitpid(pid, &status, 0);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (wpid == (pid_t)-1) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (errno == EINTR)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk continue;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk else
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (1);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return ((WIFEXITED(status) == 0) ? 1 : WEXITSTATUS(status));
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * _update_devalloc_db
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Forms allocatable device entries to be written to device_allocate and
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * device_maps.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * Or finds the correct entry to remove, and removes it.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * Note: devname is a /devices link in the REMOVE case.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/* ARGSUSED */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkvoid
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk_update_devalloc_db(devlist_t *devlist, int devflag, int action, char *devname,
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char *root_dir)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int i;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk deventry_t *entry = NULL, *dentry = NULL;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel char *typestring;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel char *nickname; /* typestring + instance */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (action == DA_ADD) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk for (i = 0; i < DA_COUNT; i++) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk switch (i) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case 0:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->audio;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case 1:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->cd;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case 2:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->floppy;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case 3:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->tape;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk case 4:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->rmdisk;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk default:
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (dentry)
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel (void) _update_dev(dentry, action, NULL, NULL,
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else if (action == DA_REMOVE) {
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (devflag & DA_AUDIO) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->audio;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel typestring = DA_AUDIO_TYPE;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel } else if (devflag & DA_CD) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->cd;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel typestring = DA_CD_TYPE;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel } else if (devflag & DA_FLOPPY) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->floppy;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel typestring = DA_FLOPPY_TYPE;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel } else if (devflag & DA_TAPE) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->tape;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel typestring = DA_TAPE_TYPE;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel } else if (devflag & DA_RMDISK) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dentry = devlist->rmdisk;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel typestring = DA_RMDISK_TYPE;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel } else
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (event_driven) {
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel nickname = _update_dev(NULL, action, typestring, NULL,
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel devname);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (nickname != NULL) {
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel (void) da_rm_list_entry(devlist, devname,
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel devflag, nickname);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel free(nickname);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel }
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel return;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel }
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel /*
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * Not reached as of now, could be reached if devfsadm is
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * enhanced to clean up devalloc database more thoroughly.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * Will not reliably match for event-driven removes
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk for (entry = dentry; entry != NULL; entry = entry->next) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (strcmp(entry->devinfo.devname, devname) == 0)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk break;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel (void) _update_dev(entry, action, NULL, devname, NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel/*
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * _update_dev: Update device_allocate and/or device_maps files
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * If adding a device:
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * dentry: A linked list of allocatable devices
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * action: DA_ADD or DA_REMOVE
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * devtype: type of device linked list to update on removal
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * devname: short name (i.e. rmdisk5, cdrom0) of device if known
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * rm_link: name of real /device from hot_cleanup
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * If the action is ADD or if the action is triggered by an event
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * from syseventd, read the files FIRST and treat their data as
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * more-accurate than the dentry list, adjusting dentry contents if needed.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * For DA_ADD, try to add each device in the list to the files.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * If the action is DA_REMOVE and not a hotplug remove, adjust the files
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * as indicated by the linked list.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * RETURNS:
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * If we successfully remove a device from the files, returns
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * a char * to strdup'd devname of the device removed.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * The caller is responsible for freeing the return value.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * NULL for all other cases, both success and failure.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel */
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcelstatic char *
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel_update_dev(deventry_t *dentry, int action, const char *devtype, char *devname,
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel char *rm_link)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da_args dargs;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk deventry_t newentry, *entry;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel int status;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.rootdir = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.devnames = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (event_driven)
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel dargs.optflag = DA_EVENT;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel else
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel dargs.optflag = 0;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (action == DA_ADD) {
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel dargs.optflag |= DA_ADD;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel /*
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * Add Events do not have enough information to overrride the
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * existing file contents.
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel */
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk for (entry = dentry; entry != NULL; entry = entry->next) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.devinfo = &(entry->devinfo);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) da_update_device(&dargs);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else if (action == DA_REMOVE) {
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel dargs.optflag |= DA_REMOVE;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (dentry) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk entry = dentry;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel } else if (dargs.optflag & DA_EVENT) {
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (devname == NULL)
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devname = NULL;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel else
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devname = strdup(devname);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devtype = (char *)devtype;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devauths =
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devopts =
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devexec = NULL;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devlist = strdup(rm_link);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.instance = 0;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.next = NULL;
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel entry = &newentry;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk newentry.devinfo.devname = strdup(devname);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devtype = (char *)devtype;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk newentry.devinfo.devauths =
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devexec =
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devopts =
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel newentry.devinfo.devlist = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk newentry.devinfo.instance = 0;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk newentry.next = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk entry = &newentry;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dargs.devinfo = &(entry->devinfo);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel /*
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * da_update_device will fill in entry devname if
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel * event_driven is true and device is in the file
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel */
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel status = da_update_device(&dargs);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (event_driven)
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (newentry.devinfo.devlist != NULL)
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel free(newentry.devinfo.devlist);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel if (status == 0)
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel return (dargs.devinfo->devname);
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel else free(dargs.devinfo->devname);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
7e3e5701c73b753fb9dd17a0cbe0568b4cdda39eJan Parcel return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}