c5d9d80f43
- more env vars: + with disk, DEVICE holds partition name, i.e. hda2 + PIGGYBACK set means install from iso image (disk & nfs) - HTTP/1.0 from now
195 lines
4.6 KiB
C
195 lines
4.6 KiB
C
/*
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* Guillaume Cottenceau (gc@mandrakesoft.com)
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*
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* Copyright 2000 MandrakeSoft
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*
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* This software may be freely redistributed under the terms of the GNU
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* public license.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/*
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* Portions from Erik Troan (ewt@redhat.com)
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*
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* Copyright 1996 Red Hat Software
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*
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*/
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "log.h"
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#include "modules.h"
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#include "mount.h"
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#ifndef DISABLE_MEDIAS
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/* WARNING: this won't work if the argument is not /dev/ based */
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int ensure_dev_exists(char *dev)
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{
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int major, minor;
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int type = S_IFBLK; /* my default type is block. don't forget to change for chars */
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char * name;
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struct stat buf;
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char * ptr;
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name = &dev[5]; /* we really need that dev be passed as /dev/something.. */
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if (!stat(dev, &buf))
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return 0; /* if the file already exists, we assume it's correct */
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if (name[0] == 's' && name[1] == 'd') {
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/* SCSI disks */
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major = 8;
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minor = (name[2] - 'a') << 4;
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if (name[3] && name[4])
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minor += 10 + (name[4] - '0');
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else if (name[3])
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minor += (name[3] - '0');
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} else if (name[0] == 'h' && name[1] == 'd') {
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/* IDE disks/cd's */
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if (name[2] == 'a')
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major = 3, minor = 0;
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else if (name[2] == 'b')
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major = 3, minor = 64;
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else if (name[2] == 'c')
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major = 22, minor = 0;
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else if (name[2] == 'd')
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major = 22, minor = 64;
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else if (name[2] == 'e')
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major = 33, minor = 0;
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else if (name[2] == 'f')
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major = 33, minor = 64;
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else if (name[2] == 'g')
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major = 34, minor = 0;
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else if (name[2] == 'h')
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major = 34, minor = 64;
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else
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return -1;
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if (name[3] && name[4])
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minor += 10 + (name[4] - '0');
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else if (name[3])
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minor += (name[3] - '0');
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} else if (name[0] == 's' && name[1] == 'r') {
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/* SCSI cd's */
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major = 11;
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minor = name[2] - '0';
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} else if (ptr_begins_static_str(name, "ida/") ||
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ptr_begins_static_str(name, "cciss/")) {
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/* Compaq Smart Array "ida/c0d0{p1}" */
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ptr = strchr(name, '/');
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mkdir("/dev/ida", 0755);
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mkdir("/dev/cciss", 0755);
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major = ptr_begins_static_str(name, "ida/") ? 72 : 104 + charstar_to_int(ptr+2);
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ptr = strchr(ptr, 'd');
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minor = 16 * charstar_to_int(ptr+1);
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ptr = strchr(ptr, 'p');
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minor += charstar_to_int(ptr+1);
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} else if (ptr_begins_static_str(name, "rd/")) {
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/* DAC960 "rd/cXdXXpX" */
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mkdir("/dev/rd", 0755);
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major = 48 + charstar_to_int(name+4);
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ptr = strchr(name+4, 'd');
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minor = 8 * charstar_to_int(ptr+1);
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ptr = strchr(ptr, 'p');
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minor += charstar_to_int(ptr+1);
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} else {
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log_message("I don't know how to create device %s, please post bugreport to me!", dev);
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return -1;
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}
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if (mknod(dev, type | 0600, makedev(major, minor))) {
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log_perror(dev);
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return -1;
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}
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return 0;
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}
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#endif /* DISABLE_MEDIAS */
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/* mounts, creating the device if needed+possible */
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int my_mount(char *dev, char *location, char *fs, int force_rw)
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{
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unsigned long flags = MS_MGC_VAL | (force_rw ? 0 : MS_RDONLY);
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char * opts = NULL;
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struct stat buf;
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int rc;
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#ifndef DISABLE_MEDIAS
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if (strcmp(fs, "nfs")) {
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rc = ensure_dev_exists(dev);
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if (rc != 0) {
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log_message("could not create required device file");
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return -1;
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}
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}
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#endif
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log_message("mounting %s on %s as type %s", dev, location, fs);
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if (stat(location, &buf)) {
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if (mkdir(location, 0755)) {
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log_perror("could not create location dir");
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return -1;
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}
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} else if (!S_ISDIR(buf.st_mode)) {
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log_message("not a dir %s, will unlink and mkdir", location);
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if (unlink(location)) {
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log_perror("could not unlink");
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return -1;
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}
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if (mkdir(location, 0755)) {
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log_perror("could not create location dir");
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return -1;
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}
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}
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#ifndef DISABLE_MEDIAS
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if (!strcmp(fs, "ext2"))
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my_insmod("ext2", ANY_DRIVER_TYPE, NULL);
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if (!strcmp(fs, "vfat")) {
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my_insmod("vfat", ANY_DRIVER_TYPE, NULL);
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opts = "check=relaxed";
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}
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if (!strcmp(fs, "ntfs"))
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my_insmod("ntfs", ANY_DRIVER_TYPE, NULL);
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if (!strcmp(fs, "reiserfs"))
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my_insmod("reiserfs", ANY_DRIVER_TYPE, NULL);
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if (!strcmp(fs, "iso9660"))
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my_insmod("isofs", ANY_DRIVER_TYPE, NULL);
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#endif
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#ifndef DISABLE_NETWORK
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if (!strcmp(fs, "nfs")) {
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my_insmod("nfs", ANY_DRIVER_TYPE, NULL);
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log_message("preparing nfsmount for %s", dev);
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rc = nfsmount_prepare(dev, &opts);
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if (rc != 0)
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return rc;
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}
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#endif
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rc = mount(dev, location, fs, flags, opts);
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if (rc != 0) {
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log_perror("mount failed");
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rmdir(location);
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}
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return rc;
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}
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