diff options
Diffstat (limited to 'mdk-stage1/mount.c')
| -rw-r--r-- | mdk-stage1/mount.c | 392 |
1 files changed, 202 insertions, 190 deletions
diff --git a/mdk-stage1/mount.c b/mdk-stage1/mount.c index b481052c7..918f5d1a2 100644 --- a/mdk-stage1/mount.c +++ b/mdk-stage1/mount.c @@ -37,225 +37,237 @@ /* WARNING: this won't work if the argument is not /dev/ based */ int ensure_dev_exists(const char * dev) { - int major, minor; - int type = S_IFBLK; /* my default type is block. don't forget to change for chars */ - const char * name; - struct stat buf; - char * ptr; - - name = &dev[5]; /* we really need that dev be passed as /dev/something.. */ + int major, minor; + int type = S_IFBLK; /* my default type is block. don't forget to change for chars */ + const char * name; + struct stat buf; + char * ptr; + + name = &dev[5]; /* we really need that dev be passed as /dev/something.. */ - if (!stat(dev, &buf)) - return 0; /* if the file already exists, we assume it's correct */ + if (!stat(dev, &buf)) + return 0; /* if the file already exists, we assume it's correct */ - if (ptr_begins_static_str(name, "sd")) { - /* SCSI disks */ - major = 8; - minor = (name[2] - 'a') << 4; - if (name[3] && name[4]) { - minor += 10 + (name[4] - '0'); - if (name[3] > 1 || name[4] > 5) { - log_message("I don't know how to create device %s, please post bugreport to me!", dev); - return -1; - } - } else if (name[3]) - minor += (name[3] - '0'); - } else if (ptr_begins_static_str(name, "vd")) { - /* Virtual disks */ - major = 252; - minor = (name[2] - 'a') << 4; - if (name[3] && name[4]) { - minor += 10 + (name[4] - '0'); - if (name[3] > 1 || name[4] > 5) { - log_message("I don't know how to create device %s, please post bugreport to me!", dev); - return -1; - } - } else if (name[3]) - minor += (name[3] - '0'); - } else if (ptr_begins_static_str(name, "hd")) { - /* IDE disks/cd's */ - if (name[2] == 'a') - major = 3, minor = 0; - else if (name[2] == 'b') - major = 3, minor = 64; - else if (name[2] == 'c') - major = 22, minor = 0; - else if (name[2] == 'd') - major = 22, minor = 64; - else if (name[2] == 'e') - major = 33, minor = 0; - else if (name[2] == 'f') - major = 33, minor = 64; - else if (name[2] == 'g') - major = 34, minor = 0; - else if (name[2] == 'h') - major = 34, minor = 64; - else if (name[2] == 'i') - major = 56, minor = 0; - else if (name[2] == 'j') - major = 56, minor = 64; - else if (name[2] == 'k') - major = 57, minor = 0; - else if (name[2] == 'l') - major = 57, minor = 64; - else if (name[2] == 'm') - major = 88, minor = 0; - else if (name[2] == 'n') - major = 88, minor = 64; - else if (name[2] == 'o') - major = 89, minor = 0; - else if (name[2] == 'p') - major = 89, minor = 64; - else if (name[2] == 'q') - major = 90, minor = 0; - else if (name[2] == 'r') - major = 90, minor = 64; - else if (name[2] == 's') - major = 91, minor = 0; - else if (name[2] == 't') - major = 91, minor = 64; - else - return -1; - - if (name[3] && name[4]) - minor += 10 + (name[4] - '0'); - else if (name[3]) - minor += (name[3] - '0'); - } else if (ptr_begins_static_str(name , "sr")) { - /* SCSI cd's */ - major = 11; - minor = name[2] - '0'; - } else if (ptr_begins_static_str(name, "ida/") || - ptr_begins_static_str(name, "cciss/")) { - /* Compaq Smart Array "ida/c0d0{p1}" */ - ptr = strchr(name, '/'); - mkdir("/dev/ida", 0755); - mkdir("/dev/cciss", 0755); - major = ptr_begins_static_str(name, "ida/") ? 72 : 104 + charstar_to_int(ptr+2); - ptr = strchr(ptr, 'd'); - minor = 16 * charstar_to_int(ptr+1); - ptr = strchr(ptr, 'p'); - minor += charstar_to_int(ptr+1); - } else if (ptr_begins_static_str(name, "rd/")) { - /* DAC960 "rd/cXdXXpX" */ - mkdir("/dev/rd", 0755); - major = 48 + charstar_to_int(name+4); - ptr = strchr(name+4, 'd'); - minor = 8 * charstar_to_int(ptr+1); - ptr = strchr(ptr, 'p'); - minor += charstar_to_int(ptr+1); - } else if (ptr_begins_static_str(name, "loop")) { - major = 7; - minor = name[4] - '0'; - } else if (ptr_begins_static_str(name, "chloop")) { - major = 100; - minor = name[6] - '0'; - } else { - log_message("I don't know how to create device %s, please post bugreport to me!", dev); - return -1; - } + if (ptr_begins_static_str(name, "sd")) { + /* SCSI disks */ + major = 8; + minor = (name[2] - 'a') << 4; + if (name[3] && name[4]) { + minor += 10 + (name[4] - '0'); + if (name[3] > 1 || name[4] > 5) { + log_message("I don't know how to create device %s, please post bugreport to me!", dev); + return -1; + } + } else if (name[3]) + minor += (name[3] - '0'); + } else if (ptr_begins_static_str(name, "vd")) { + /* Virtual disks */ + major = 252; + minor = (name[2] - 'a') << 4; + if (name[3] && name[4]) { + minor += 10 + (name[4] - '0'); + if (name[3] > 1 || name[4] > 5) { + log_message("I don't know how to create device %s, please post bugreport to me!", dev); + return -1; + } + } else if (name[3]) + minor += (name[3] - '0'); + } else if (ptr_begins_static_str(name, "xvd")) { + /* Virtual disks */ + major = 202; + minor = (name[2] - 'a') << 4; + if (name[4] && name[5]) { + minor += 10 + (name[5] - '0'); + if (name[4] > 1 || name[5] > 5) { + log_message("I don't know how to create device %s, please post bugreport to me!", dev); + return -1; + } + } else if (name[4]) + minor += (name[4] - '0'); + } else if (ptr_begins_static_str(name, "hd")) { + /* IDE disks/cd's */ + if (name[2] == 'a') + major = 3, minor = 0; + else if (name[2] == 'b') + major = 3, minor = 64; + else if (name[2] == 'c') + major = 22, minor = 0; + else if (name[2] == 'd') + major = 22, minor = 64; + else if (name[2] == 'e') + major = 33, minor = 0; + else if (name[2] == 'f') + major = 33, minor = 64; + else if (name[2] == 'g') + major = 34, minor = 0; + else if (name[2] == 'h') + major = 34, minor = 64; + else if (name[2] == 'i') + major = 56, minor = 0; + else if (name[2] == 'j') + major = 56, minor = 64; + else if (name[2] == 'k') + major = 57, minor = 0; + else if (name[2] == 'l') + major = 57, minor = 64; + else if (name[2] == 'm') + major = 88, minor = 0; + else if (name[2] == 'n') + major = 88, minor = 64; + else if (name[2] == 'o') + major = 89, minor = 0; + else if (name[2] == 'p') + major = 89, minor = 64; + else if (name[2] == 'q') + major = 90, minor = 0; + else if (name[2] == 'r') + major = 90, minor = 64; + else if (name[2] == 's') + major = 91, minor = 0; + else if (name[2] == 't') + major = 91, minor = 64; + else + return -1; + + if (name[3] && name[4]) + minor += 10 + (name[4] - '0'); + else if (name[3]) + minor += (name[3] - '0'); + } else if (ptr_begins_static_str(name , "sr")) { + /* SCSI cd's */ + major = 11; + minor = name[2] - '0'; + } else if (ptr_begins_static_str(name, "ida/") || + ptr_begins_static_str(name, "cciss/")) { + /* Compaq Smart Array "ida/c0d0{p1}" */ + ptr = strchr(name, '/'); + mkdir("/dev/ida", 0755); + mkdir("/dev/cciss", 0755); + major = ptr_begins_static_str(name, "ida/") ? 72 : 104 + charstar_to_int(ptr+2); + ptr = strchr(ptr, 'd'); + minor = 16 * charstar_to_int(ptr+1); + ptr = strchr(ptr, 'p'); + minor += charstar_to_int(ptr+1); + } else if (ptr_begins_static_str(name, "rd/")) { + /* DAC960 "rd/cXdXXpX" */ + mkdir("/dev/rd", 0755); + major = 48 + charstar_to_int(name+4); + ptr = strchr(name+4, 'd'); + minor = 8 * charstar_to_int(ptr+1); + ptr = strchr(ptr, 'p'); + minor += charstar_to_int(ptr+1); + } else if (ptr_begins_static_str(name, "loop")) { + major = 7; + minor = name[4] - '0'; + } else if (ptr_begins_static_str(name, "chloop")) { + major = 100; + minor = name[6] - '0'; + } else { + log_message("I don't know how to create device %s, please post bugreport to me!", dev); + return -1; + } - if (mknod(dev, type | 0600, makedev(major, minor))) { - log_perror(dev); - return -1; - } - - return 0; + if (mknod(dev, type | 0600, makedev(major, minor))) { + log_perror(dev); + return -1; + } + + return 0; } /* mounts, creating the device if needed+possible */ int my_mount(char *dev, char *location, char *fs, int force_rw) { - unsigned long flags = MS_MGC_VAL | (force_rw ? 0 : MS_RDONLY); - char * opts = NULL; - struct stat buf; - int rc; + unsigned long flags = MS_MGC_VAL | (force_rw ? 0 : MS_RDONLY); + char * opts = NULL; + struct stat buf; + int rc; - if (strcmp(fs, "nfs")) { - rc = ensure_dev_exists(dev); - if (rc != 0) { - log_message("could not create required device file"); - return -1; - } - } + if (strcmp(fs, "nfs")) { + rc = ensure_dev_exists(dev); + if (rc != 0) { + log_message("could not create required device file"); + return -1; + } + } - log_message("mounting %s on %s as type %s", dev, location, fs); + log_message("mounting %s on %s as type %s", dev, location, fs); - if (stat(location, &buf)) { - if (mkdir(location, 0755)) { - log_perror("could not create location dir"); - return -1; - } - } else if (!S_ISDIR(buf.st_mode)) { - log_message("not a dir %s, will unlink and mkdir", location); - if (unlink(location)) { - log_perror("could not unlink"); - return -1; - } - if (mkdir(location, 0755)) { - log_perror("could not create location dir"); - return -1; - } - } + if (stat(location, &buf)) { + if (mkdir(location, 0755)) { + log_perror("could not create location dir"); + return -1; + } + } else if (!S_ISDIR(buf.st_mode)) { + log_message("not a dir %s, will unlink and mkdir", location); + if (unlink(location)) { + log_perror("could not unlink"); + return -1; + } + if (mkdir(location, 0755)) { + log_perror("could not create location dir"); + return -1; + } + } - if (!strcmp(fs, "supermount")) { - my_insmod("supermount", ANY_DRIVER_TYPE, NULL, 1); - my_insmod("isofs", ANY_DRIVER_TYPE, NULL, 1); - opts = alloca(500); + if (!strcmp(fs, "supermount")) { + my_insmod("supermount", ANY_DRIVER_TYPE, NULL, 1); + my_insmod("isofs", ANY_DRIVER_TYPE, NULL, 1); + opts = alloca(500); sprintf(opts, "dev=%s,fs=iso9660,tray_lock=always", dev); dev = "none"; - } + } #ifndef DISABLE_MEDIAS - if (!strcmp(fs, "vfat")) { - my_insmod("nls_cp437", ANY_DRIVER_TYPE, NULL, 1); - my_insmod("nls_iso8859_1", ANY_DRIVER_TYPE, NULL, 1); - my_insmod("vfat", ANY_DRIVER_TYPE, NULL, 1); - opts = "check=relaxed"; - } + if (!strcmp(fs, "vfat")) { + my_insmod("nls_cp437", ANY_DRIVER_TYPE, NULL, 1); + my_insmod("nls_iso8859_1", ANY_DRIVER_TYPE, NULL, 1); + my_insmod("vfat", ANY_DRIVER_TYPE, NULL, 1); + opts = "check=relaxed"; + } - if (!strcmp(fs, "ntfs")) { - my_insmod("ntfs", ANY_DRIVER_TYPE, NULL, 1); - } + if (!strcmp(fs, "ntfs")) { + my_insmod("ntfs", ANY_DRIVER_TYPE, NULL, 1); + } - if (!strcmp(fs, "reiserfs")) - my_insmod("reiserfs", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "reiserfs")) + my_insmod("reiserfs", ANY_DRIVER_TYPE, NULL, 1); - if (!strcmp(fs, "reiser4")) - my_insmod("reiser4", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "reiser4")) + my_insmod("reiser4", ANY_DRIVER_TYPE, NULL, 1); - if (!strcmp(fs, "jfs")) - my_insmod("jfs", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "jfs")) + my_insmod("jfs", ANY_DRIVER_TYPE, NULL, 1); - if (!strcmp(fs, "xfs")) - my_insmod("xfs", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "xfs")) + my_insmod("xfs", ANY_DRIVER_TYPE, NULL, 1); - if (!strcmp(fs, "ext4")) - my_insmod("ext4", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "ext4")) + my_insmod("ext4", ANY_DRIVER_TYPE, NULL, 1); - if (!strcmp(fs, "btrfs")) - my_insmod("btrfs", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "btrfs")) + my_insmod("btrfs", ANY_DRIVER_TYPE, NULL, 1); #endif - if (!strcmp(fs, "iso9660")) - my_insmod("isofs", ANY_DRIVER_TYPE, NULL, 1); + if (!strcmp(fs, "iso9660")) + my_insmod("isofs", ANY_DRIVER_TYPE, NULL, 1); #ifndef DISABLE_NETWORK - if (!strcmp(fs, "nfs")) { - my_insmod("nfs", ANY_DRIVER_TYPE, NULL, 1); - log_message("preparing nfsmount for %s", dev); - rc = nfsmount_prepare(dev, &opts); - if (rc != 0) - return rc; - } + if (!strcmp(fs, "nfs")) { + my_insmod("nfs", ANY_DRIVER_TYPE, NULL, 1); + log_message("preparing nfsmount for %s", dev); + rc = nfsmount_prepare(dev, &opts); + if (rc != 0) + return rc; + } #endif - rc = mount(dev, location, fs, flags, opts); - if (rc != 0) { - log_perror("mount failed"); - rmdir(location); - } + rc = mount(dev, location, fs, flags, opts); + if (rc != 0) { + log_perror("mount failed"); + rmdir(location); + } - return rc; + return rc; } |