#include <assert.h>
#include <blkid/blkid.h>
+#include <errno.h>
#include <fcntl.h>
#include <libudev.h>
+#include <linux/loop.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
+#include <sys/stat.h>
#include <sys/swap.h>
+#include <sys/sysinfo.h>
#include <unistd.h>
#include <linux/fs.h>
NULL
};
-static int system_chroot(const char* path, const char* cmd) {
+static int system_chroot(const char* output, const char* path, const char* cmd) {
char chroot_cmd[STRING_SIZE];
snprintf(chroot_cmd, sizeof(chroot_cmd), "/usr/sbin/chroot %s %s", path, cmd);
- return mysystem(chroot_cmd);
+ return mysystem(output, chroot_cmd);
}
struct hw* hw_init() {
return (strncmp(a, b, strlen(b)) == 0);
}
+static char loop_device[STRING_SIZE];
+
+static int setup_loop_device(const char* source, const char* device) {
+ int file_fd = open(source, O_RDWR);
+ if (file_fd < 0)
+ goto ERROR;
+
+ int device_fd = -1;
+ if ((device_fd = open(device, O_RDWR)) < 0)
+ goto ERROR;
+
+ if (ioctl(device_fd, LOOP_SET_FD, file_fd) < 0)
+ goto ERROR;
+
+ close(file_fd);
+ close(device_fd);
+
+ return 0;
+
+ERROR:
+ if (file_fd >= 0)
+ close(file_fd);
+
+ if (device_fd >= 0) {
+ ioctl(device_fd, LOOP_CLR_FD, 0);
+ close(device_fd);
+ }
+
+ return -1;
+}
+
int hw_mount(const char* source, const char* target, const char* fs, int flags) {
+ const char* loop_device = "/dev/loop0";
+
// Create target if it does not exist
if (access(target, X_OK) != 0)
mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO);
+ struct stat st;
+ stat(source, &st);
+
+ if (S_ISREG(st.st_mode)) {
+ int r = setup_loop_device(source, loop_device);
+ if (r == 0) {
+ source = loop_device;
+ } else {
+ return -1;
+ }
+ }
+
return mount(source, target, fs, flags, NULL);
}
int hw_umount(const char* target) {
- return umount2(target, 0);
+ int r = umount2(target, 0);
+
+ if (r && errno == EBUSY) {
+ // Give it a moment to settle
+ sleep(1);
+
+ r = umount2(target, MNT_FORCE);
+ }
+
+ return r;
}
static int hw_test_source_medium(const char* path) {
return size;
}
-struct hw_disk** hw_find_disks(struct hw* hw) {
+struct hw_disk** hw_find_disks(struct hw* hw, const char* sourcedrive) {
struct hw_disk** ret = hw_create_disks();
struct hw_disk** disks = ret;
continue;
}
- // DEVTYPE must be disk (otherwise we will see all sorts of partitions here)
- const char* devtype = udev_device_get_property_value(dev, "DEVTYPE");
- if (devtype && (strcmp(devtype, "disk") != 0)) {
+ // Skip sourcedrive if we need to
+ if (sourcedrive && (strcmp(dev_path, sourcedrive) == 0)) {
udev_device_unref(dev);
continue;
}
- // Skip all source mediums
- if (hw_test_source_medium(dev_path) == 0) {
+ // DEVTYPE must be disk (otherwise we will see all sorts of partitions here)
+ const char* devtype = udev_device_get_property_value(dev, "DEVTYPE");
+ if (devtype && (strcmp(devtype, "disk") != 0)) {
udev_device_unref(dev);
continue;
}
disk->ref = 1;
strncpy(disk->path, dev_path, sizeof(disk->path));
+ const char* p = disk->path + 5;
disk->size = size;
if (*disk->vendor && *disk->model) {
snprintf(disk->description, sizeof(disk->description),
- "%s - %s - %s", size_str, disk->vendor, disk->model);
+ "%s - %s - %s - %s", size_str, p, disk->vendor, disk->model);
} else if (*disk->vendor || *disk->model) {
snprintf(disk->description, sizeof(disk->description),
- "%s - %s", size_str, (*disk->vendor) ? disk->vendor : disk->model);
+ "%s - %s - %s", size_str, p, (*disk->vendor) ? disk->vendor : disk->model);
} else {
snprintf(disk->description, sizeof(disk->description),
- "%s - N/A", size_str);
+ "%s - %s", size_str, p);
}
*disks++ = disk;
free(disks);
}
-unsigned int hw_count_disks(struct hw_disk** disks) {
+unsigned int hw_count_disks(const struct hw_disk** disks) {
unsigned int ret = 0;
while (*disks++)
struct hw_disk** ret = hw_create_disks();
struct hw_disk** selected_disks = ret;
- unsigned int num_disks = hw_count_disks(disks);
+ unsigned int num_disks = hw_count_disks((const struct hw_disk**)disks);
for (unsigned int i = 0; i < num_disks; i++) {
- if (selection && selection[i]) {
+ if (!selection || selection[i]) {
struct hw_disk *selected_disk = disks[i];
selected_disk->ref++;
return ret;
}
+struct hw_disk** hw_select_first_disk(const struct hw_disk** disks) {
+ struct hw_disk** ret = hw_create_disks();
+ struct hw_disk** selected_disks = ret;
+
+ unsigned int num_disks = hw_count_disks(disks);
+ assert(num_disks > 0);
+
+ for (unsigned int i = 0; i < num_disks; i++) {
+ struct hw_disk *disk = disks[i];
+ disk->ref++;
+
+ *selected_disks++ = disk;
+ break;
+ }
+
+ // Set sentinel
+ *selected_disks = NULL;
+
+ return ret;
+}
+
static unsigned long long hw_swap_size(struct hw_destination* dest) {
unsigned long long memory = hw_memory();
return MB2BYTES(64);
}
-static int hw_calculate_partition_table(struct hw_destination* dest) {
+static int hw_device_has_p_suffix(const struct hw_destination* dest) {
+ // All RAID devices have the p suffix.
+ if (dest->is_raid)
+ return 1;
+
+ // Devices with a number at the end have the p suffix, too.
+ // e.g. mmcblk0, cciss0
+ unsigned int last_char = strlen(dest->path) - 1;
+ if ((dest->path[last_char] >= '0') && (dest->path[last_char] <= '9'))
+ return 1;
+
+ return 0;
+}
+
+static int hw_calculate_partition_table(struct hw_destination* dest, int disable_swap) {
char path[DEV_SIZE];
int part_idx = 1;
- snprintf(path, sizeof(path), "%s%s", dest->path, (dest->is_raid) ? "p" : "");
+ snprintf(path, sizeof(path), "%s%s", dest->path,
+ hw_device_has_p_suffix(dest) ? "p" : "");
dest->part_boot_idx = 0;
// Determine the size of the target block device
}
dest->size_boot = hw_boot_size(dest);
- dest->size_swap = hw_swap_size(dest);
dest->size_root = hw_root_size(dest);
+ // Should we use swap?
+ if (disable_swap)
+ dest->size_swap = 0;
+ else
+ dest->size_swap = hw_swap_size(dest);
+
// Determine the size of the data partition.
unsigned long long used_space = dest->size_bootldr + dest->size_boot
+ dest->size_swap + dest->size_root;
return 0;
}
-struct hw_destination* hw_make_destination(int part_type, struct hw_disk** disks) {
+struct hw_destination* hw_make_destination(int part_type, struct hw_disk** disks, int disable_swap) {
struct hw_destination* dest = malloc(sizeof(*dest));
if (part_type == HW_PART_TYPE_NORMAL) {
// Is this a RAID device?
dest->is_raid = (part_type > HW_PART_TYPE_NORMAL);
- int r = hw_calculate_partition_table(dest);
+ int r = hw_calculate_partition_table(dest, disable_swap);
if (r)
return NULL;
}
unsigned long long hw_memory() {
- FILE* handle = NULL;
- char line[STRING_SIZE];
-
- unsigned long long memory = 0;
+ struct sysinfo si;
- /* Calculate amount of memory in machine */
- if ((handle = fopen("/proc/meminfo", "r"))) {
- while (fgets(line, sizeof(line), handle)) {
- if (!sscanf (line, "MemTotal: %llu kB", &memory)) {
- memory = 0;
- }
- }
-
- fclose(handle);
- }
+ int r = sysinfo(&si);
+ if (r < 0)
+ return 0;
- return memory * 1024;
+ return si.totalram;
}
static int hw_zero_out_device(const char* path, int bytes) {
return bytes_written;
}
-int hw_create_partitions(struct hw_destination* dest) {
+static int try_open(const char* path) {
+ FILE* f = fopen(path, "r");
+ if (f) {
+ fclose(f);
+ return 0;
+ }
+
+ return -1;
+}
+
+int hw_create_partitions(struct hw_destination* dest, const char* output) {
// Before we write a new partition table to the disk, we will erase
// the first couple of megabytes at the beginning of the device to
// get rid of all left other things like bootloaders and partition tables.
part_start += dest->size_data;
}
- if (dest->part_table == HW_PART_TABLE_MSDOS && dest->part_boot_idx > 0) {
+ if (dest->part_boot_idx > 0)
asprintf(&cmd, "%s set %d boot on", cmd, dest->part_boot_idx);
- } else if (dest->part_table == HW_PART_TABLE_GPT) {
+ if (dest->part_table == HW_PART_TABLE_GPT) {
if (*dest->part_bootldr) {
asprintf(&cmd, "%s set %d bios_grub on", cmd, dest->part_boot_idx);
}
asprintf(&cmd, "%s disk_set pmbr_boot on", cmd);
}
- int r = mysystem(cmd);
+ r = mysystem(output, cmd);
// Wait until the system re-read the partition table
if (r == 0) {
while (counter-- > 0) {
sleep(1);
- if (*dest->part_bootldr && (access(dest->part_bootldr, R_OK) != 0))
+ if (*dest->part_bootldr && (try_open(dest->part_bootldr) != 0))
continue;
- if (*dest->part_boot && (access(dest->part_boot, R_OK) != 0))
+ if (*dest->part_boot && (try_open(dest->part_boot) != 0))
continue;
- if (*dest->part_swap && (access(dest->part_swap, R_OK) != 0))
+ if (*dest->part_swap && (try_open(dest->part_swap) != 0))
continue;
- if (*dest->part_root && (access(dest->part_root, R_OK) != 0))
+ if (*dest->part_root && (try_open(dest->part_root) != 0))
continue;
- if (*dest->part_data && (access(dest->part_data, R_OK) != 0))
+ if (*dest->part_data && (try_open(dest->part_data) != 0))
continue;
// All partitions do exist, exiting the loop.
return r;
}
-static int hw_format_filesystem(const char* path, int fs) {
+static int hw_format_filesystem(const char* path, int fs, const char* output) {
char cmd[STRING_SIZE] = "\0";
// Swap
assert(*cmd);
- int r = mysystem(cmd);
+ int r = mysystem(output, cmd);
return r;
}
-int hw_create_filesystems(struct hw_destination* dest) {
+int hw_create_filesystems(struct hw_destination* dest, const char* output) {
int r;
// boot
if (*dest->part_boot) {
- r = hw_format_filesystem(dest->part_boot, dest->filesystem);
+ r = hw_format_filesystem(dest->part_boot, dest->filesystem, output);
if (r)
return r;
}
// swap
if (*dest->part_swap) {
- r = hw_format_filesystem(dest->part_swap, HW_FS_SWAP);
+ r = hw_format_filesystem(dest->part_swap, HW_FS_SWAP, output);
if (r)
return r;
}
// root
- r = hw_format_filesystem(dest->part_root, dest->filesystem);
+ r = hw_format_filesystem(dest->part_root, dest->filesystem, output);
if (r)
return r;
// data
if (*dest->part_data) {
- r = hw_format_filesystem(dest->part_data, dest->filesystem);
+ r = hw_format_filesystem(dest->part_data, dest->filesystem, output);
if (r)
return r;
}
}
int hw_umount_filesystems(struct hw_destination* dest, const char* prefix) {
+ int r;
+ char target[STRING_SIZE];
+
+ // Write all buffers to disk before umounting
+ hw_sync();
+
// boot
if (*dest->part_boot) {
- hw_umount(dest->part_boot);
+ snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT);
+ r = hw_umount(target);
+ if (r)
+ return -1;
}
// data
if (*dest->part_data) {
- hw_umount(dest->part_data);
+ snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_DATA);
+ r = hw_umount(target);
+ if (r)
+ return -1;
}
- // root
- hw_umount(dest->part_root);
-
// swap
if (*dest->part_swap) {
swapoff(dest->part_swap);
}
// misc filesystems
- char target[STRING_SIZE];
char** otherfs = other_filesystems;
-
while (*otherfs) {
snprintf(target, sizeof(target), "%s%s", prefix, *otherfs++);
- hw_umount(target);
+ r = hw_umount(target);
+ if (r)
+ return -1;
}
+ // root
+ r = hw_umount(prefix);
+ if (r)
+ return -1;
+
return 0;
}
-int hw_setup_raid(struct hw_destination* dest) {
+int hw_destroy_raid_superblocks(const struct hw_destination* dest, const char* output) {
+ char cmd[STRING_SIZE];
+
+ hw_stop_all_raid_arrays(output);
+ hw_stop_all_raid_arrays(output);
+
+ if (dest->disk1) {
+ snprintf(cmd, sizeof(cmd), "/sbin/mdadm --zero-superblock %s", dest->disk1->path);
+ mysystem(output, cmd);
+ }
+
+ if (dest->disk2) {
+ snprintf(cmd, sizeof(cmd), "/sbin/mdadm --zero-superblock %s", dest->disk2->path);
+ mysystem(output, cmd);
+ }
+
+ return 0;
+}
+
+int hw_setup_raid(struct hw_destination* dest, const char* output) {
char* cmd = NULL;
+ int r;
assert(dest->is_raid);
- asprintf(&cmd, "echo \"y\" | /sbin/mdadm --create --verbose --metadata=1.2 %s", dest->path);
+ // Stop all RAID arrays that might be around (again).
+ // It seems that there is some sort of race-condition with udev re-enabling
+ // the raid arrays and therefore locking the disks.
+ r = hw_destroy_raid_superblocks(dest, output);
+
+ asprintf(&cmd, "echo \"y\" | /sbin/mdadm --create --verbose --metadata=%s --auto=mdp %s",
+ RAID_METADATA, dest->path);
switch (dest->raid_level) {
case 1:
return r;
}
- int r = mysystem(cmd);
+ r = mysystem(output, cmd);
free(cmd);
// Wait a moment until the device has been properly brought up
// If the raid device has not yet been properly brought up,
// opening it will fail with the message: Device or resource busy
// Hence we will wait a bit until it becomes usable.
- FILE* f = fopen(dest->path, "r");
- if (f) {
- fclose(f);
+ if (try_open(dest->path) == 0)
break;
- }
}
}
return r;
}
-int hw_stop_all_raid_arrays() {
- return mysystem("/sbin/mdadm --stop --scan");
+int hw_stop_all_raid_arrays(const char* output) {
+ return mysystem(output, "/sbin/mdadm --stop --scan --verbose");
}
-int hw_install_bootloader(struct hw_destination* dest) {
+int hw_install_bootloader(struct hw_destination* dest, const char* output) {
char cmd[STRING_SIZE];
int r;
// Generate configuration file
snprintf(cmd, sizeof(cmd), "/usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg");
- r = system_chroot(DESTINATION_MOUNT_PATH, cmd);
+ r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
char cmd_grub[STRING_SIZE];
snprintf(cmd_grub, sizeof(cmd_grub), "/usr/sbin/grub-install --no-floppy --recheck");
- if (dest->is_raid && (dest->part_table == HW_PART_TABLE_MSDOS)) {
+ if (dest->is_raid) {
snprintf(cmd, sizeof(cmd), "%s %s", cmd_grub, dest->disk1->path);
- r = system_chroot(DESTINATION_MOUNT_PATH, cmd);
+ r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
snprintf(cmd, sizeof(cmd), "%s %s", cmd_grub, dest->disk2->path);
- r = system_chroot(DESTINATION_MOUNT_PATH, cmd);
+ r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
} else {
snprintf(cmd, sizeof(cmd), "%s %s", cmd_grub, dest->path);
- r = system_chroot(DESTINATION_MOUNT_PATH, cmd);
+ r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
}
+ hw_sync();
+
return r;
}
return uuid;
}
+#define FSTAB_FMT "UUID=%s %-8s %-4s %-10s %d %d\n"
+
int hw_write_fstab(struct hw_destination* dest) {
FILE* f = fopen(DESTINATION_MOUNT_PATH "/etc/fstab", "w");
if (!f)
return -1;
- const char* fmt = "UUID=%s %-8s %-4s %-10s %d %d\n";
char* uuid = NULL;
// boot
uuid = hw_get_uuid(dest->part_boot);
if (uuid) {
- fprintf(f, fmt, uuid, "/boot", "auto", "defaults", 1, 2);
+ fprintf(f, FSTAB_FMT, uuid, "/boot", "auto", "defaults", 1, 2);
free(uuid);
}
}
uuid = hw_get_uuid(dest->part_swap);
if (uuid) {
- fprintf(f, fmt, uuid, "swap", "swap", "defaults,pri=1", 0, 0);
+ fprintf(f, FSTAB_FMT, uuid, "swap", "swap", "defaults,pri=1", 0, 0);
free(uuid);
}
}
// root
uuid = hw_get_uuid(dest->part_root);
if (uuid) {
- fprintf(f, fmt, uuid, "/", "auto", "defaults", 1, 1);
+ fprintf(f, FSTAB_FMT, uuid, "/", "auto", "defaults", 1, 1);
free(uuid);
}
uuid = hw_get_uuid(dest->part_data);
if (uuid) {
- fprintf(f, fmt, uuid, "/var", "auto", "defaults", 1, 1);
+ fprintf(f, FSTAB_FMT, uuid, "/var", "auto", "defaults", 1, 1);
free(uuid);
}
}
return 0;
}
+
+void hw_sync() {
+ sync();
+ sync();
+ sync();
+}
+
+int hw_start_networking(const char* output) {
+ return mysystem(output, "/usr/bin/start-networking.sh");
+}
+
+char* hw_find_backup_file(const char* output, const char* search_path) {
+ char path[STRING_SIZE];
+
+ snprintf(path, sizeof(path), "%s/backup.ipf", search_path);
+ int r = access(path, R_OK);
+
+ if (r == 0)
+ return strdup(path);
+
+ return NULL;
+}
+
+int hw_restore_backup(const char* output, const char* backup_path, const char* destination) {
+ char command[STRING_SIZE];
+
+ snprintf(command, sizeof(command), "/bin/tar xzpf %s -C %s", backup_path, destination);
+ int rc = mysystem(output, command);
+
+ if (rc)
+ return -1;
+
+ return 0;
+}
projects / ipfire-2.x.git / blobdiff