ADD_DEFINITIONS(-DDEBUG -g3)
ENDIF()
-ADD_EXECUTABLE(mount_root mount_root.c)
-TARGET_LINK_LIBRARIES(mount_root ${LIBS})
-
-INSTALL(TARGETS mount_root
- RUNTIME DESTINATION sbin
-)
-
-ADD_EXECUTABLE(block block.c
- libblkid-tiny/libblkid-tiny.c
- libblkid-tiny/mkdev.c
- libblkid-tiny/ext.c
- libblkid-tiny/jffs2.c
- libblkid-tiny/vfat.c
- libblkid-tiny/swap.c
- libblkid-tiny/squashfs.c)
-TARGET_LINK_LIBRARIES(block ${LIBS} blobmsg_json)
-
-INSTALL(TARGETS block
- RUNTIME DESTINATION sbin
-)
-
ADD_EXECUTABLE(kmodloader kmodloader.c)
TARGET_LINK_LIBRARIES(kmodloader ${LIBS})
+++ /dev/null
-/*
- * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define _GNU_SOURCE
-#include <getopt.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <libgen.h>
-#include <glob.h>
-
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/swap.h>
-#include <sys/mount.h>
-#include <sys/wait.h>
-
-#include <uci.h>
-#include <uci_blob.h>
-
-#include <libubox/list.h>
-#include <libubox/vlist.h>
-#include <libubox/blobmsg_json.h>
-#include <libubox/avl-cmp.h>
-
-#include "libblkid-tiny/libblkid-tiny.h"
-
-#define ERROR(fmt, ...) do { \
- syslog(LOG_ERR, fmt, ## __VA_ARGS__); \
- fprintf(stderr, "block: "fmt, ## __VA_ARGS__); \
- } while (0)
-
-enum {
- TYPE_MOUNT,
- TYPE_SWAP,
-};
-
-struct mount {
- struct vlist_node node;
- int type;
-
- char *target;
- char *path;
- char *options;
- uint32_t flags;
- char *uuid;
- char *label;
- char *device;
- int extroot;
- int overlay;
- int disabled_fsck;
- unsigned int prio;
-};
-
-static struct vlist_tree mounts;
-static struct blob_buf b;
-static LIST_HEAD(devices);
-static int anon_mount, anon_swap, auto_mount, auto_swap, check_fs;
-static unsigned int delay_root;
-
-enum {
- CFG_ANON_MOUNT,
- CFG_ANON_SWAP,
- CFG_AUTO_MOUNT,
- CFG_AUTO_SWAP,
- CFG_DELAY_ROOT,
- CFG_CHECK_FS,
- __CFG_MAX
-};
-
-static const struct blobmsg_policy config_policy[__CFG_MAX] = {
- [CFG_ANON_SWAP] = { .name = "anon_swap", .type = BLOBMSG_TYPE_INT32 },
- [CFG_ANON_MOUNT] = { .name = "anon_mount", .type = BLOBMSG_TYPE_INT32 },
- [CFG_AUTO_SWAP] = { .name = "auto_swap", .type = BLOBMSG_TYPE_INT32 },
- [CFG_AUTO_MOUNT] = { .name = "auto_mount", .type = BLOBMSG_TYPE_INT32 },
- [CFG_DELAY_ROOT] = { .name = "delay_root", .type = BLOBMSG_TYPE_INT32 },
- [CFG_CHECK_FS] = { .name = "check_fs", .type = BLOBMSG_TYPE_INT32 },
-};
-
-enum {
- MOUNT_UUID,
- MOUNT_LABEL,
- MOUNT_ENABLE,
- MOUNT_TARGET,
- MOUNT_DEVICE,
- MOUNT_OPTIONS,
- __MOUNT_MAX
-};
-
-static const struct uci_blob_param_list config_attr_list = {
- .n_params = __CFG_MAX,
- .params = config_policy,
-};
-
-static const struct blobmsg_policy mount_policy[__MOUNT_MAX] = {
- [MOUNT_UUID] = { .name = "uuid", .type = BLOBMSG_TYPE_STRING },
- [MOUNT_LABEL] = { .name = "label", .type = BLOBMSG_TYPE_STRING },
- [MOUNT_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
- [MOUNT_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
- [MOUNT_OPTIONS] = { .name = "options", .type = BLOBMSG_TYPE_STRING },
- [MOUNT_ENABLE] = { .name = "enabled", .type = BLOBMSG_TYPE_INT32 },
-};
-
-static const struct uci_blob_param_list mount_attr_list = {
- .n_params = __MOUNT_MAX,
- .params = mount_policy,
-};
-
-enum {
- SWAP_ENABLE,
- SWAP_UUID,
- SWAP_LABEL,
- SWAP_DEVICE,
- SWAP_PRIO,
- __SWAP_MAX
-};
-
-static const struct blobmsg_policy swap_policy[__SWAP_MAX] = {
- [SWAP_ENABLE] = { .name = "enabled", .type = BLOBMSG_TYPE_INT32 },
- [SWAP_UUID] = { .name = "uuid", .type = BLOBMSG_TYPE_STRING },
- [SWAP_LABEL] = { .name = "label", .type = BLOBMSG_TYPE_STRING },
- [SWAP_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
- [SWAP_PRIO] = { .name = "priority", .type = BLOBMSG_TYPE_INT32 },
-};
-
-static const struct uci_blob_param_list swap_attr_list = {
- .n_params = __SWAP_MAX,
- .params = swap_policy,
-};
-
-struct mount_flag {
- const char *name;
- int32_t flag;
-};
-
-#ifndef MS_DIRSYNC
-# define MS_DIRSYNC (1 << 7)
-#endif
-
-#ifndef MS_RELATIME
-# define MS_RELATIME (1 << 21)
-#endif
-
-#ifndef MS_STRICTATIME
-# define MS_STRICTATIME (1 << 24)
-#endif
-
-static const struct mount_flag mount_flags[] = {
- { "sync", MS_SYNCHRONOUS },
- { "async", ~MS_SYNCHRONOUS },
- { "dirsync", MS_DIRSYNC },
- { "mand", MS_MANDLOCK },
- { "nomand", ~MS_MANDLOCK },
- { "atime", ~MS_NOATIME },
- { "noatime", MS_NOATIME },
- { "dev", ~MS_NODEV },
- { "nodev", MS_NODEV },
- { "diratime", ~MS_NODIRATIME },
- { "nodiratime", MS_NODIRATIME },
- { "exec", ~MS_NOEXEC },
- { "noexec", MS_NOEXEC },
- { "suid", ~MS_NOSUID },
- { "nosuid", MS_NOSUID },
- { "rw", ~MS_RDONLY },
- { "ro", MS_RDONLY },
- { "relatime", MS_RELATIME },
- { "norelatime", ~MS_RELATIME },
- { "strictatime", MS_STRICTATIME },
-};
-
-static char *blobmsg_get_strdup(struct blob_attr *attr)
-{
- if (!attr)
- return NULL;
-
- return strdup(blobmsg_get_string(attr));
-}
-
-static char *blobmsg_get_basename(struct blob_attr *attr)
-{
- if (!attr)
- return NULL;
-
- return strdup(basename(blobmsg_get_string(attr)));
-}
-
-static void parse_mount_options(struct mount *m, char *optstr)
-{
- int i;
- bool is_flag;
- char *p, *opts, *last;
-
- m->flags = 0;
- m->options = NULL;
-
- if (!optstr || !*optstr)
- return;
-
- m->options = opts = calloc(1, strlen(optstr) + 1);
-
- if (!m->options)
- return;
-
- p = last = optstr;
-
- do {
- p = strchr(p, ',');
-
- if (p)
- *p++ = 0;
-
- for (i = 0, is_flag = false; i < ARRAY_SIZE(mount_flags); i++) {
- if (!strcmp(last, mount_flags[i].name)) {
- if (mount_flags[i].flag < 0)
- m->flags &= (uint32_t)mount_flags[i].flag;
- else
- m->flags |= (uint32_t)mount_flags[i].flag;
- is_flag = true;
- break;
- }
- }
-
- if (!is_flag)
- opts += sprintf(opts, "%s%s", (opts > m->options) ? "," : "", last);
-
- last = p;
-
- } while (p);
-
- free(optstr);
-}
-
-static int mount_add(struct uci_section *s)
-{
- struct blob_attr *tb[__MOUNT_MAX] = { 0 };
- struct mount *m;
-
- blob_buf_init(&b, 0);
- uci_to_blob(&b, s, &mount_attr_list);
- blobmsg_parse(mount_policy, __MOUNT_MAX, tb, blob_data(b.head), blob_len(b.head));
-
- if (!tb[MOUNT_LABEL] && !tb[MOUNT_UUID] && !tb[MOUNT_DEVICE])
- return -1;
-
- if (tb[MOUNT_ENABLE] && !blobmsg_get_u32(tb[MOUNT_ENABLE]))
- return -1;
-
- m = malloc(sizeof(struct mount));
- m->type = TYPE_MOUNT;
- m->uuid = blobmsg_get_strdup(tb[MOUNT_UUID]);
- m->label = blobmsg_get_strdup(tb[MOUNT_LABEL]);
- m->target = blobmsg_get_strdup(tb[MOUNT_TARGET]);
- m->device = blobmsg_get_basename(tb[MOUNT_DEVICE]);
-
- parse_mount_options(m, blobmsg_get_strdup(tb[MOUNT_OPTIONS]));
-
- m->overlay = m->extroot = 0;
- if (m->target && !strcmp(m->target, "/"))
- m->extroot = 1;
- if (m->target && !strcmp(m->target, "/overlay"))
- m->extroot = m->overlay = 1;
-
- if (m->uuid)
- vlist_add(&mounts, &m->node, m->uuid);
- else if (m->label)
- vlist_add(&mounts, &m->node, m->label);
- else if (m->device)
- vlist_add(&mounts, &m->node, m->device);
-
- return 0;
-}
-
-static int swap_add(struct uci_section *s)
-{
- struct blob_attr *tb[__SWAP_MAX] = { 0 };
- struct mount *m;
-
- blob_buf_init(&b, 0);
- uci_to_blob(&b, s, &swap_attr_list);
- blobmsg_parse(swap_policy, __SWAP_MAX, tb, blob_data(b.head), blob_len(b.head));
-
- if (!tb[SWAP_UUID] && !tb[SWAP_LABEL] && !tb[SWAP_DEVICE])
- return -1;
-
- m = malloc(sizeof(struct mount));
- memset(m, 0, sizeof(struct mount));
- m->type = TYPE_SWAP;
- m->uuid = blobmsg_get_strdup(tb[SWAP_UUID]);
- m->label = blobmsg_get_strdup(tb[SWAP_LABEL]);
- m->device = blobmsg_get_basename(tb[SWAP_DEVICE]);
- if (tb[SWAP_PRIO])
- m->prio = blobmsg_get_u32(tb[SWAP_PRIO]);
- if (m->prio)
- m->prio = ((m->prio << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK) | SWAP_FLAG_PREFER;
-
- if ((!tb[SWAP_ENABLE]) || blobmsg_get_u32(tb[SWAP_ENABLE])) {
- /* store complete swap path */
- if (tb[SWAP_DEVICE])
- m->target = blobmsg_get_strdup(tb[SWAP_DEVICE]);
-
- if (m->uuid)
- vlist_add(&mounts, &m->node, m->uuid);
- else if (m->label)
- vlist_add(&mounts, &m->node, m->label);
- else if (m->device)
- vlist_add(&mounts, &m->node, m->device);
- }
-
- return 0;
-}
-
-static int global_add(struct uci_section *s)
-{
- struct blob_attr *tb[__CFG_MAX] = { 0 };
-
- blob_buf_init(&b, 0);
- uci_to_blob(&b, s, &config_attr_list);
- blobmsg_parse(config_policy, __CFG_MAX, tb, blob_data(b.head), blob_len(b.head));
-
- if ((tb[CFG_ANON_MOUNT]) && blobmsg_get_u32(tb[CFG_ANON_MOUNT]))
- anon_mount = 1;
- if ((tb[CFG_ANON_SWAP]) && blobmsg_get_u32(tb[CFG_ANON_SWAP]))
- anon_swap = 1;
-
- if ((tb[CFG_AUTO_MOUNT]) && blobmsg_get_u32(tb[CFG_AUTO_MOUNT]))
- auto_mount = 1;
- if ((tb[CFG_AUTO_SWAP]) && blobmsg_get_u32(tb[CFG_AUTO_SWAP]))
- auto_swap = 1;
-
- if (tb[CFG_DELAY_ROOT])
- delay_root = blobmsg_get_u32(tb[CFG_DELAY_ROOT]);
-
- if ((tb[CFG_CHECK_FS]) && blobmsg_get_u32(tb[CFG_CHECK_FS]))
- check_fs = 1;
-
- return 0;
-}
-
-static struct mount* find_swap(const char *uuid, const char *label, const char *device)
-{
- struct mount *m;
-
- vlist_for_each_element(&mounts, m, node) {
- if (m->type != TYPE_SWAP)
- continue;
- if (uuid && m->uuid && !strcmp(m->uuid, uuid))
- return m;
- if (label && m->label && !strcmp(m->label, label))
- return m;
- if (device && m->device && !strcmp(m->device, device))
- return m;
- }
-
- return NULL;
-}
-
-static struct mount* find_block(const char *uuid, const char *label, const char *device,
- const char *target)
-{
- struct mount *m;
-
- vlist_for_each_element(&mounts, m, node) {
- if (m->type != TYPE_MOUNT)
- continue;
- if (m->uuid && uuid && !strcmp(m->uuid, uuid))
- return m;
- if (m->label && label && !strcmp(m->label, label))
- return m;
- if (m->target && target && !strcmp(m->target, target))
- return m;
- if (m->device && device && !strcmp(m->device, device))
- return m;
- }
-
- return NULL;
-}
-
-static void mounts_update(struct vlist_tree *tree, struct vlist_node *node_new,
- struct vlist_node *node_old)
-{
-}
-
-static int config_load(char *cfg)
-{
- struct uci_context *ctx;
- struct uci_package *pkg;
- struct uci_element *e;
-
- vlist_init(&mounts, avl_strcmp, mounts_update);
-
- ctx = uci_alloc_context();
- if (cfg) {
- char path[32];
- snprintf(path, 32, "%s/etc/config", cfg);
- uci_set_confdir(ctx, path);
- }
-
- if (uci_load(ctx, "fstab", &pkg))
- {
- char *err;
- uci_get_errorstr(ctx, &err, "fstab");
- ERROR("extroot: failed to load %s/etc/config/%s\n",
- cfg ? cfg : "", err);
- free(err);
- return -1;
- }
-
- vlist_update(&mounts);
- uci_foreach_element(&pkg->sections, e) {
- struct uci_section *s = uci_to_section(e);
-
- if (!strcmp(s->type, "mount"))
- mount_add(s);
- if (!strcmp(s->type, "swap"))
- swap_add(s);
- if (!strcmp(s->type, "global"))
- global_add(s);
- }
- vlist_flush(&mounts);
-
- return 0;
-}
-
-static struct blkid_struct_probe* _probe_path(char *path)
-{
- struct blkid_struct_probe *pr;
-
- pr = malloc(sizeof(*pr));
-
- if (!pr)
- return NULL;
-
- memset(pr, 0, sizeof(*pr));
- probe_block(path, pr);
-
- if (pr->err || !pr->id) {
- free(pr);
- return NULL;
- }
-
- return pr;
-}
-
-static int _cache_load(const char *path)
-{
- int gl_flags = GLOB_NOESCAPE | GLOB_MARK;
- int j;
- glob_t gl;
-
- if (glob(path, gl_flags, NULL, &gl) < 0)
- return -1;
-
- for (j = 0; j < gl.gl_pathc; j++) {
- struct blkid_struct_probe *pr = _probe_path(gl.gl_pathv[j]);
- if (pr)
- list_add_tail(&pr->list, &devices);
- }
-
- globfree(&gl);
-
- return 0;
-}
-
-static void cache_load(int mtd)
-{
- if (mtd)
- _cache_load("/dev/mtdblock*");
- _cache_load("/dev/mmcblk*");
- _cache_load("/dev/sd*");
- _cache_load("/dev/hd*");
- _cache_load("/dev/md*");
- _cache_load("/dev/mapper/*");
-}
-
-static int print_block_info(struct blkid_struct_probe *pr)
-{
- printf("%s:", pr->dev);
- if (pr->uuid[0])
- printf(" UUID=\"%s\"", pr->uuid);
-
- if (pr->label[0])
- printf(" LABEL=\"%s\"", pr->label);
-
- if (pr->name[0])
- printf(" NAME=\"%s\"", pr->name);
-
- if (pr->version[0])
- printf(" VERSION=\"%s\"", pr->version);
-
- printf(" TYPE=\"%s\"\n", pr->id->name);
-
- return 0;
-}
-
-static int print_block_uci(struct blkid_struct_probe *pr)
-{
- if (!strcmp(pr->id->name, "swap")) {
- printf("config 'swap'\n");
- } else {
- printf("config 'mount'\n");
- printf("\toption\ttarget\t'/mnt/%s'\n", basename(pr->dev));
- }
- if (pr->uuid[0])
- printf("\toption\tuuid\t'%s'\n", pr->uuid);
- else
- printf("\toption\tdevice\t'%s'\n", pr->dev);
- printf("\toption\tenabled\t'0'\n\n");
-
- return 0;
-}
-
-static struct blkid_struct_probe* find_block_info(char *uuid, char *label, char *path)
-{
- struct blkid_struct_probe *pr = NULL;
-
- if (uuid)
- list_for_each_entry(pr, &devices, list)
- if (!strcmp(pr->uuid, uuid))
- return pr;
-
- if (label)
- list_for_each_entry(pr, &devices, list)
- if (!strcmp(pr->label, label))
- return pr;
-
- if (path)
- list_for_each_entry(pr, &devices, list)
- if (!strcmp(basename(pr->dev), basename(path)))
- return pr;
-
- return NULL;
-}
-
-static char* find_mount_point(char *block)
-{
- FILE *fp = fopen("/proc/mounts", "r");
- static char line[256];
- int len = strlen(block);
- char *point = NULL;
-
- if(!fp)
- return NULL;
-
- while (fgets(line, sizeof(line), fp)) {
- if (!strncmp(line, block, len)) {
- char *p = &line[len + 1];
- char *t = strstr(p, " ");
-
- if (!t) {
- fclose(fp);
- return NULL;
- }
- *t = '\0';
- point = p;
- break;
- }
- }
-
- fclose(fp);
-
- return point;
-}
-
-static void mkdir_p(char *dir)
-{
- char *l = strrchr(dir, '/');
-
- if (l) {
- *l = '\0';
- mkdir_p(dir);
- *l = '/';
- mkdir(dir, 0755);
- }
-}
-
-static void check_filesystem(struct blkid_struct_probe *pr)
-{
- pid_t pid;
- struct stat statbuf;
- char *e2fsck = "/usr/sbin/e2fsck";
-
- if (strncmp(pr->id->name, "ext", 3)) {
- ERROR("check_filesystem: %s is not supported\n", pr->id->name);
- return;
- }
-
- if (stat(e2fsck, &statbuf) < 0) {
- ERROR("check_filesystem: %s not found\n", e2fsck);
- return;
- }
-
- pid = fork();
- if (!pid) {
- execl(e2fsck, e2fsck, "-p", pr->dev, NULL);
- exit(-1);
- } else if (pid > 0) {
- int status;
-
- waitpid(pid, &status, 0);
- if (WEXITSTATUS(status))
- ERROR("check_filesystem: %s returned %d\n", e2fsck, WEXITSTATUS(status));
- }
-}
-
-static void handle_swapfiles(bool on)
-{
- struct stat s;
- struct mount *m;
- struct blkid_struct_probe *pr;
-
- vlist_for_each_element(&mounts, m, node)
- {
- if (m->type != TYPE_SWAP || !m->target)
- continue;
-
- if (stat(m->target, &s) || !S_ISREG(s.st_mode))
- continue;
-
- pr = _probe_path(m->target);
-
- if (!pr)
- continue;
-
- if (!strcmp(pr->id->name, "swap")) {
- if (on)
- swapon(pr->dev, m->prio);
- else
- swapoff(pr->dev);
- }
-
- free(pr);
- }
-}
-
-static int mount_device(struct blkid_struct_probe *pr, int hotplug)
-{
- struct mount *m;
- char *device;
-
- if (!pr)
- return -1;
-
- device = basename(pr->dev);
-
- if (!strcmp(pr->id->name, "swap")) {
- if (hotplug && !auto_swap)
- return -1;
- m = find_swap(pr->uuid, pr->label, device);
- if (m || anon_swap)
- swapon(pr->dev, (m) ? (m->prio) : (0));
-
- return 0;
- }
-
- if (hotplug && !auto_mount)
- return -1;
-
- if (find_mount_point(pr->dev)) {
- ERROR("%s is already mounted\n", pr->dev);
- return -1;
- }
-
- m = find_block(pr->uuid, pr->label, device, NULL);
- if (m && m->extroot)
- return -1;
-
- if (m) {
- char *target = m->target;
- char _target[32];
- int err = 0;
-
- if (!target) {
- snprintf(_target, sizeof(_target), "/mnt/%s", device);
- target = _target;
- }
- mkdir_p(target);
-
- if (check_fs)
- check_filesystem(pr);
-
- err = mount(pr->dev, target, pr->id->name, m->flags,
- (m->options) ? (m->options) : (""));
- if (err)
- ERROR("mounting %s (%s) as %s failed (%d) - %s\n",
- pr->dev, pr->id->name, target, err, strerror(err));
- else
- handle_swapfiles(true);
- return err;
- }
-
- if (anon_mount) {
- char target[] = "/mnt/mmcblk123";
- int err = 0;
-
- snprintf(target, sizeof(target), "/mnt/%s", device);
- mkdir_p(target);
-
- if (check_fs)
- check_filesystem(pr);
-
- err = mount(pr->dev, target, pr->id->name, 0, "");
- if (err)
- ERROR("mounting %s (%s) as %s failed (%d) - %s\n",
- pr->dev, pr->id->name, target, err, strerror(err));
- else
- handle_swapfiles(true);
- return err;
- }
-
- return 0;
-}
-
-static int umount_device(struct blkid_struct_probe *pr)
-{
- struct mount *m;
- char *device = basename(pr->dev);
- char *mp;
- int err;
-
- if (!pr)
- return -1;
-
- if (!strcmp(pr->id->name, "swap"))
- return -1;
-
- mp = find_mount_point(pr->dev);
- if (!mp)
- return -1;
-
- m = find_block(pr->uuid, pr->label, device, NULL);
- if (m && m->extroot)
- return -1;
-
- err = umount2(mp, MNT_DETACH);
- if (err)
- ERROR("unmounting %s (%s) failed (%d) - %s\n",
- pr->dev, mp, err, strerror(err));
- else
- ERROR("unmounted %s (%s)\n",
- pr->dev, mp);
-
- return err;
-}
-
-static int main_hotplug(int argc, char **argv)
-{
- char path[32];
- char *action, *device, *mount_point;
-
- action = getenv("ACTION");
- device = getenv("DEVNAME");
-
- if (!action || !device)
- return -1;
- snprintf(path, sizeof(path), "/dev/%s", device);
-
- if (!strcmp(action, "remove")) {
- int err = 0;
- mount_point = find_mount_point(path);
- if (mount_point)
- err = umount2(mount_point, MNT_DETACH);
-
- if (err)
- ERROR("umount of %s failed (%d) - %s\n",
- mount_point, err, strerror(err));
-
- return 0;
- } else if (strcmp(action, "add")) {
- ERROR("Unkown action %s\n", action);
-
- return -1;
- }
-
- if (config_load(NULL))
- return -1;
- cache_load(0);
-
- return mount_device(find_block_info(NULL, NULL, path), 1);
-}
-
-static int find_block_mtd(char *name, char *part, int plen)
-{
- FILE *fp = fopen("/proc/mtd", "r");
- static char line[256];
- char *index = NULL;
-
- if(!fp)
- return -1;
-
- while (!index && fgets(line, sizeof(line), fp)) {
- if (strstr(line, name)) {
- char *eol = strstr(line, ":");
-
- if (!eol)
- continue;
-
- *eol = '\0';
- index = &line[3];
- }
- }
-
- fclose(fp);
-
- if (!index)
- return -1;
-
- snprintf(part, plen, "/dev/mtdblock%s", index);
-
- return 0;
-}
-
-static int check_extroot(char *path)
-{
- struct blkid_struct_probe *pr = NULL;
- char fs[32];
-
- if (find_block_mtd("rootfs", fs, sizeof(fs)))
- return -1;
-
- list_for_each_entry(pr, &devices, list) {
- if (!strcmp(pr->dev, fs)) {
- struct stat s;
- FILE *fp = NULL;
- char tag[64];
- char uuid[64] = { 0 };
-
- snprintf(tag, sizeof(tag), "%s/etc/.extroot-uuid", path);
- if (stat(tag, &s)) {
- fp = fopen(tag, "w+");
- if (!fp) {
- ERROR("extroot: failed to write uuid tag file\n");
- /* return 0 to continue boot regardless of error */
- return 0;
- }
- fputs(pr->uuid, fp);
- fclose(fp);
- return 0;
- }
-
- fp = fopen(tag, "r");
- if (!fp) {
- ERROR("extroot: failed to open uuid tag file\n");
- return -1;
- }
-
- fgets(uuid, sizeof(uuid), fp);
- fclose(fp);
- if (!strcmp(uuid, pr->uuid))
- return 0;
- ERROR("extroot: uuid tag does not match rom uuid\n");
- }
- }
- return -1;
-}
-
-static int mount_extroot(char *cfg)
-{
- char overlay[] = "/tmp/extroot/overlay";
- char mnt[] = "/tmp/extroot/mnt";
- char *path = mnt;
- struct blkid_struct_probe *pr;
- struct mount *m;
- int err = -1;
-
- if (config_load(cfg))
- return -2;
-
- m = find_block(NULL, NULL, NULL, "/");
- if (!m)
- m = find_block(NULL, NULL, NULL, "/overlay");
-
- if (!m || !m->extroot)
- {
- ERROR("extroot: no root or overlay mount defined\n");
- return -1;
- }
-
- pr = find_block_info(m->uuid, m->label, m->device);
-
- if (!pr && delay_root){
- ERROR("extroot: is not ready yet, retrying in %u seconds\n", delay_root);
- sleep(delay_root);
- mkblkdev();
- cache_load(0);
- pr = find_block_info(m->uuid, m->label, m->device);
- }
- if (pr) {
- if (strncmp(pr->id->name, "ext", 3)) {
- ERROR("extroot: %s is not supported, try ext4\n", pr->id->name);
- return -1;
- }
- if (m->overlay)
- path = overlay;
- mkdir_p(path);
-
- if (check_fs)
- check_filesystem(pr);
-
- err = mount(pr->dev, path, pr->id->name, 0, (m->options) ? (m->options) : (""));
-
- if (err) {
- ERROR("mounting %s (%s) as %s failed (%d) - %s\n",
- pr->dev, pr->id->name, path, err, strerror(err));
- } else if (m->overlay) {
- err = check_extroot(path);
- if (err)
- umount(path);
- }
- } else {
- ERROR("extroot: cannot find block device\n");
- }
-
- return err;
-}
-
-static int main_extroot(int argc, char **argv)
-{
- struct blkid_struct_probe *pr;
- char fs[32] = { 0 };
- char fs_data[32] = { 0 };
- int err = -1;
-
- if (!getenv("PREINIT"))
- return -1;
-
- if (argc != 2) {
- fprintf(stderr, "Usage: block extroot mountpoint\n");
- return -1;
- }
-
- mkblkdev();
- cache_load(1);
-
- find_block_mtd("rootfs", fs, sizeof(fs));
- if (!fs[0]) {
- ERROR("extroot: unable to locate rootfs mtdblock\n");
- return -2;
- }
-
- pr = find_block_info(NULL, NULL, fs);
- if (!pr) {
- ERROR("extroot: unable to retrieve rootfs information\n");
- return -3;
- }
-
- find_block_mtd("rootfs_data", fs_data, sizeof(fs_data));
- if (fs_data[0]) {
- pr = find_block_info(NULL, NULL, fs_data);
- if (pr && !strcmp(pr->id->name, "jffs2")) {
- char cfg[] = "/tmp/jffs_cfg";
-
- mkdir_p(cfg);
- if (!mount(fs_data, cfg, "jffs2", MS_NOATIME, NULL)) {
- err = mount_extroot(cfg);
- umount2(cfg, MNT_DETACH);
- }
- if (err < 0)
- rmdir("/tmp/overlay");
- rmdir(cfg);
- return err;
- }
- }
-
- return mount_extroot(NULL);
-}
-
-static int main_mount(int argc, char **argv)
-{
- struct blkid_struct_probe *pr;
-
- if (config_load(NULL))
- return -1;
-
- cache_load(1);
- list_for_each_entry(pr, &devices, list)
- mount_device(pr, 0);
-
- handle_swapfiles(true);
-
- return 0;
-}
-
-static int main_umount(int argc, char **argv)
-{
- struct blkid_struct_probe *pr;
-
- if (config_load(NULL))
- return -1;
-
- handle_swapfiles(false);
-
- cache_load(0);
- list_for_each_entry(pr, &devices, list)
- umount_device(pr);
-
- return 0;
-}
-
-static int main_detect(int argc, char **argv)
-{
- struct blkid_struct_probe *pr;
-
- cache_load(0);
- printf("config 'global'\n");
- printf("\toption\tanon_swap\t'0'\n");
- printf("\toption\tanon_mount\t'0'\n");
- printf("\toption\tauto_swap\t'1'\n");
- printf("\toption\tauto_mount\t'1'\n");
- printf("\toption\tdelay_root\t'5'\n");
- printf("\toption\tcheck_fs\t'0'\n\n");
- list_for_each_entry(pr, &devices, list)
- print_block_uci(pr);
-
- return 0;
-}
-
-static int main_info(int argc, char **argv)
-{
- int i;
- struct blkid_struct_probe *pr;
-
- cache_load(1);
- if (argc == 2) {
- list_for_each_entry(pr, &devices, list)
- print_block_info(pr);
-
- return 0;
- };
-
- for (i = 2; i < argc; i++) {
- struct stat s;
-
- if (stat(argv[i], &s)) {
- ERROR("failed to stat %s\n", argv[i]);
- continue;
- }
- if (!S_ISBLK(s.st_mode)) {
- ERROR("%s is not a block device\n", argv[i]);
- continue;
- }
- pr = find_block_info(NULL, NULL, argv[i]);
- if (pr)
- print_block_info(pr);
- }
-
- return 0;
-}
-
-static int swapon_usage(void)
-{
- fprintf(stderr, "Usage: swapon [-s] [-a] [[-p pri] DEVICE]\n\n"
- "\tStart swapping on [DEVICE]\n"
- " -a\tStart swapping on all swap devices\n"
- " -p pri\tSet priority of swap device\n"
- " -s\tShow summary\n");
- return -1;
-}
-
-static int main_swapon(int argc, char **argv)
-{
- int ch;
- FILE *fp;
- char *lineptr;
- size_t s;
- struct blkid_struct_probe *pr;
- int flags = 0;
- int pri;
- struct stat st;
- int err;
-
- while ((ch = getopt(argc, argv, "ap:s")) != -1) {
- switch(ch) {
- case 's':
- fp = fopen("/proc/swaps", "r");
- lineptr = NULL;
-
- if (!fp) {
- ERROR("failed to open /proc/swaps\n");
- return -1;
- }
- while (getline(&lineptr, &s, fp) > 0)
- printf(lineptr);
- if (lineptr)
- free(lineptr);
- fclose(fp);
- return 0;
- case 'a':
- cache_load(0);
- list_for_each_entry(pr, &devices, list) {
- if (strcmp(pr->id->name, "swap"))
- continue;
- if (swapon(pr->dev, 0))
- ERROR("failed to swapon %s\n", pr->dev);
- }
- return 0;
- case 'p':
- pri = atoi(optarg);
- if (pri >= 0)
- flags = ((pri << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK) | SWAP_FLAG_PREFER;
- break;
- default:
- return swapon_usage();
- }
-
- }
-
- if (optind != (argc - 1))
- return swapon_usage();
-
- if (stat(argv[optind], &st) || (!S_ISBLK(st.st_mode) && !S_ISREG(st.st_mode))) {
- ERROR("%s is not a block device or file\n", argv[optind]);
- return -1;
- }
- err = swapon(argv[optind], flags);
- if (err) {
- ERROR("failed to swapon %s (%d)\n", argv[optind], err);
- return err;
- }
-
- return 0;
-}
-
-static int main_swapoff(int argc, char **argv)
-{
- if (argc != 2) {
- ERROR("Usage: swapoff [-a] [DEVICE]\n\n"
- "\tStop swapping on DEVICE\n"
- " -a\tStop swapping on all swap devices\n");
- return -1;
- }
-
- if (!strcmp(argv[1], "-a")) {
- FILE *fp = fopen("/proc/swaps", "r");
- char line[256];
-
- if (!fp) {
- ERROR("failed to open /proc/swaps\n");
- return -1;
- }
- fgets(line, sizeof(line), fp);
- while (fgets(line, sizeof(line), fp)) {
- char *end = strchr(line, ' ');
- int err;
-
- if (!end)
- continue;
- *end = '\0';
- err = swapoff(line);
- if (err)
- ERROR("failed to swapoff %s (%d)\n", line, err);
- }
- fclose(fp);
- } else {
- struct stat s;
- int err;
-
- if (stat(argv[1], &s) || (!S_ISBLK(s.st_mode) && !S_ISREG(s.st_mode))) {
- ERROR("%s is not a block device or file\n", argv[1]);
- return -1;
- }
- err = swapoff(argv[1]);
- if (err) {
- ERROR("fsiled to swapoff %s (%d)\n", argv[1], err);
- return err;
- }
- }
-
- return 0;
-}
-
-int main(int argc, char **argv)
-{
- char *base = basename(*argv);
-
- umask(0);
-
- if (!strcmp(base, "swapon"))
- return main_swapon(argc, argv);
-
- if (!strcmp(base, "swapoff"))
- return main_swapoff(argc, argv);
-
- if ((argc > 1) && !strcmp(base, "block")) {
- if (!strcmp(argv[1], "info"))
- return main_info(argc, argv);
-
- if (!strcmp(argv[1], "detect"))
- return main_detect(argc, argv);
-
- if (!strcmp(argv[1], "hotplug"))
- return main_hotplug(argc, argv);
-
- if (!strcmp(argv[1], "extroot"))
- return main_extroot(argc, argv);
-
- if (!strcmp(argv[1], "mount"))
- return main_mount(argc, argv);
-
- if (!strcmp(argv[1], "umount"))
- return main_umount(argc, argv);
- }
-
- fprintf(stderr, "Usage: block <info|mount|umount|detect>\n");
-
- return -1;
-}
+++ /dev/null
-#ifndef BITOPS_H
-#define BITOPS_H
-
-#include <stdint.h>
-
-/*
- * Bit map related macros. Usually provided by libc.
- */
-#include <sys/param.h>
-
-#ifndef NBBY
-# define NBBY CHAR_BIT
-#endif
-
-#ifndef setbit
-# define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
-# define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
-# define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY)))
-# define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
-#endif
-
-/*
- * Byte swab macros (based on linux/byteorder/swab.h)
- */
-#define swab16(x) \
- ((uint16_t)( \
- (((uint16_t)(x) & (uint16_t)0x00ffU) << 8) | \
- (((uint16_t)(x) & (uint16_t)0xff00U) >> 8) ))
-
-#define swab32(x) \
- ((uint32_t)( \
- (((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \
- (((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \
- (((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \
- (((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24) ))
-
-#define swab64(x) \
- ((uint64_t)( \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \
- (uint64_t)(((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56) ))
-
-
-#if __BYTE_ORDER == __BIG_ENDIAN
-
-#define cpu_to_le16(x) swab16(x)
-#define cpu_to_le32(x) swab32(x)
-#define cpu_to_le64(x) swab64(x)
-#define cpu_to_be16(x) ((uint16_t)(x))
-#define cpu_to_be32(x) ((uint32_t)(x))
-#define cpu_to_be64(x) ((uint64_t)(x))
-
-#define le16_to_cpu(x) swab16(x)
-#define le32_to_cpu(x) swab32(x)
-#define le64_to_cpu(x) swab64(x)
-#define be16_to_cpu(x) ((uint16_t)(x))
-#define be32_to_cpu(x) ((uint32_t)(x))
-#define be64_to_cpu(x) ((uint64_t)(x))
-
-#else /* !WORDS_BIGENDIAN */
-
-#define cpu_to_le16(x) ((uint16_t)(x))
-#define cpu_to_le32(x) ((uint32_t)(x))
-#define cpu_to_le64(x) ((uint64_t)(x))
-#define cpu_to_be16(x) swab16(x)
-#define cpu_to_be32(x) swab32(x)
-#define cpu_to_be64(x) swab64(x)
-
-#define le16_to_cpu(x) ((uint16_t)(x))
-#define le32_to_cpu(x) ((uint32_t)(x))
-#define le64_to_cpu(x) ((uint64_t)(x))
-#define be16_to_cpu(x) swab16(x)
-#define be32_to_cpu(x) swab32(x)
-#define be64_to_cpu(x) swab64(x)
-
-#endif /* WORDS_BIGENDIAN */
-
-#endif /* BITOPS_H */
-
+++ /dev/null
-#ifndef BLKDEV_H
-#define BLKDEV_H
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#ifdef HAVE_SYS_IOCCOM_H
-# include <sys/ioccom.h> /* for _IO macro on e.g. Solaris */
-#endif
-#include <fcntl.h>
-#include <unistd.h>
-
-#ifdef HAVE_SYS_MKDEV_H
-# include <sys/mkdev.h> /* major and minor on Solaris */
-#endif
-
-#define DEFAULT_SECTOR_SIZE 512
-
-#ifdef __linux__
-/* very basic ioclts, should be available everywhere */
-# ifndef BLKROSET
-# define BLKROSET _IO(0x12,93) /* set device read-only (0 = read-write) */
-# define BLKROGET _IO(0x12,94) /* get read-only status (0 = read_write) */
-# define BLKRRPART _IO(0x12,95) /* re-read partition table */
-# define BLKGETSIZE _IO(0x12,96) /* return device size /512 (long *arg) */
-# define BLKFLSBUF _IO(0x12,97) /* flush buffer cache */
-# define BLKRASET _IO(0x12,98) /* set read ahead for block device */
-# define BLKRAGET _IO(0x12,99) /* get current read ahead setting */
-# define BLKFRASET _IO(0x12,100) /* set filesystem (mm/filemap.c) read-ahead */
-# define BLKFRAGET _IO(0x12,101) /* get filesystem (mm/filemap.c) read-ahead */
-# define BLKSECTSET _IO(0x12,102) /* set max sectors per request (ll_rw_blk.c) */
-# define BLKSECTGET _IO(0x12,103) /* get max sectors per request (ll_rw_blk.c) */
-# define BLKSSZGET _IO(0x12,104) /* get block device sector size */
-
-/* ioctls introduced in 2.2.16, removed in 2.5.58 */
-# define BLKELVGET _IOR(0x12,106,size_t) /* elevator get */
-# define BLKELVSET _IOW(0x12,107,size_t) /* elevator set */
-
-# define BLKBSZGET _IOR(0x12,112,size_t)
-# define BLKBSZSET _IOW(0x12,113,size_t)
-# endif /* !BLKROSET */
-
-# ifndef BLKGETSIZE64
-# define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size in bytes (u64 *arg) */
-# endif
-
-/* block device topology ioctls, introduced in 2.6.32 (commit ac481c20) */
-# ifndef BLKIOMIN
-# define BLKIOMIN _IO(0x12,120)
-# define BLKIOOPT _IO(0x12,121)
-# define BLKALIGNOFF _IO(0x12,122)
-# define BLKPBSZGET _IO(0x12,123)
-# endif
-
-/* discard zeroes support, introduced in 2.6.33 (commit 98262f27) */
-# ifndef BLKDISCARDZEROES
-# define BLKDISCARDZEROES _IO(0x12,124)
-# endif
-
-/* filesystem freeze, introduced in 2.6.29 (commit fcccf502) */
-# ifndef FIFREEZE
-# define FIFREEZE _IOWR('X', 119, int) /* Freeze */
-# define FITHAW _IOWR('X', 120, int) /* Thaw */
-# endif
-
-#endif /* __linux */
-
-#ifdef APPLE_DARWIN
-# define BLKGETSIZE DKIOCGETBLOCKCOUNT32
-#endif
-
-#ifndef HDIO_GETGEO
-# ifdef __linux__
-# define HDIO_GETGEO 0x0301
-# endif
-
-/* uniform CD-ROM information */
-#ifndef CDROM_GET_CAPABILITY
-# define CDROM_GET_CAPABILITY 0x5331
-#endif
-
-struct hd_geometry {
- unsigned char heads;
- unsigned char sectors;
- unsigned short cylinders; /* truncated */
- unsigned long start;
-};
-#endif
-
-/* are we working with block device? */
-int is_blkdev(int fd);
-
-/* Determine size in bytes */
-off_t blkdev_find_size (int fd);
-
-/* get size in bytes */
-int blkdev_get_size(int fd, unsigned long long *bytes);
-
-/* get 512-byte sector count */
-int blkdev_get_sectors(int fd, unsigned long long *sectors);
-
-/* get hardware sector size */
-int blkdev_get_sector_size(int fd, int *sector_size);
-
-/* specifies whether or not the device is misaligned */
-int blkdev_is_misaligned(int fd);
-
-/* get physical block device size */
-int blkdev_get_physector_size(int fd, int *sector_size);
-
-/* is the device cdrom capable? */
-int blkdev_is_cdrom(int fd);
-
-#endif /* BLKDEV_H */
+++ /dev/null
-/*
- * blkid.h - Interface for libblkid, a library to identify block devices
- *
- * Copyright (C) 2001 Andreas Dilger
- * Copyright (C) 2003 Theodore Ts'o
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _BLKID_BLKID_H
-#define _BLKID_BLKID_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include "libblkid-tiny.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define BLKID_VERSION "2.21.0"
-#define BLKID_DATE "25-May-2012"
-
-/**
- * blkid_dev:
- *
- * The device object keeps information about one device
- */
-typedef struct blkid_struct_dev *blkid_dev;
-
-/**
- * blkid_cache:
- *
- * information about all system devices
- */
-typedef struct blkid_struct_cache *blkid_cache;
-
-/**
- * blkid_probe:
- *
- * low-level probing setting
- */
-typedef struct blkid_struct_probe *blkid_probe;
-
-/**
- * blkid_topology:
- *
- * device topology information
- */
-typedef struct blkid_struct_topology *blkid_topology;
-
-/**
- * blkid_partlist
- *
- * list of all detected partitions and partitions tables
- */
-typedef struct blkid_struct_partlist *blkid_partlist;
-
-/**
- * blkid_partition:
- *
- * information about a partition
- */
-typedef struct blkid_struct_partition *blkid_partition;
-
-/**
- * blkid_parttable:
- *
- * information about a partition table
- */
-typedef struct blkid_struct_parttable *blkid_parttable;
-
-/**
- * blkid_loff_t:
- *
- * 64-bit signed number for offsets and sizes
- */
-typedef int64_t blkid_loff_t;
-
-/**
- * blkid_tag_iterate:
- *
- * tags iterator for high-level (blkid_cache) API
- */
-typedef struct blkid_struct_tag_iterate *blkid_tag_iterate;
-
-/**
- * blkid_dev_iterate:
- *
- * devices iterator for high-level (blkid_cache) API
- */
-typedef struct blkid_struct_dev_iterate *blkid_dev_iterate;
-
-/*
- * Flags for blkid_get_dev
- *
- * BLKID_DEV_CREATE Create an empty device structure if not found
- * in the cache.
- * BLKID_DEV_VERIFY Make sure the device structure corresponds
- * with reality.
- * BLKID_DEV_FIND Just look up a device entry, and return NULL
- * if it is not found.
- * BLKID_DEV_NORMAL Get a valid device structure, either from the
- * cache or by probing the device.
- */
-#define BLKID_DEV_FIND 0x0000
-#define BLKID_DEV_CREATE 0x0001
-#define BLKID_DEV_VERIFY 0x0002
-#define BLKID_DEV_NORMAL (BLKID_DEV_CREATE | BLKID_DEV_VERIFY)
-
-/* cache.c */
-extern void blkid_put_cache(blkid_cache cache);
-extern int blkid_get_cache(blkid_cache *cache, const char *filename);
-extern void blkid_gc_cache(blkid_cache cache);
-
-/* dev.c */
-extern const char *blkid_dev_devname(blkid_dev dev);
-
-extern blkid_dev_iterate blkid_dev_iterate_begin(blkid_cache cache);
-extern int blkid_dev_set_search(blkid_dev_iterate iter,
- char *search_type, char *search_value);
-extern int blkid_dev_next(blkid_dev_iterate iterate, blkid_dev *dev);
-extern void blkid_dev_iterate_end(blkid_dev_iterate iterate);
-
-/* devno.c */
-extern char *blkid_devno_to_devname(dev_t devno);
-extern int blkid_devno_to_wholedisk(dev_t dev, char *diskname,
- size_t len, dev_t *diskdevno);
-
-/* devname.c */
-extern int blkid_probe_all(blkid_cache cache);
-extern int blkid_probe_all_new(blkid_cache cache);
-extern int blkid_probe_all_removable(blkid_cache cache);
-extern blkid_dev blkid_get_dev(blkid_cache cache, const char *devname,
- int flags);
-
-/* getsize.c */
-extern blkid_loff_t blkid_get_dev_size(int fd);
-
-/* verify.c */
-extern blkid_dev blkid_verify(blkid_cache cache, blkid_dev dev);
-
-/* read.c */
-
-/* resolve.c */
-extern char *blkid_get_tag_value(blkid_cache cache, const char *tagname,
- const char *devname);
-extern char *blkid_get_devname(blkid_cache cache, const char *token,
- const char *value);
-
-/* tag.c */
-extern blkid_tag_iterate blkid_tag_iterate_begin(blkid_dev dev);
-extern int blkid_tag_next(blkid_tag_iterate iterate,
- const char **type, const char **value);
-extern void blkid_tag_iterate_end(blkid_tag_iterate iterate);
-extern int blkid_dev_has_tag(blkid_dev dev, const char *type,
- const char *value);
-extern blkid_dev blkid_find_dev_with_tag(blkid_cache cache,
- const char *type,
- const char *value);
-extern int blkid_parse_tag_string(const char *token, char **ret_type,
- char **ret_val);
-
-/* version.c */
-extern int blkid_parse_version_string(const char *ver_string);
-extern int blkid_get_library_version(const char **ver_string,
- const char **date_string);
-
-/* encode.c */
-extern int blkid_encode_string(const char *str, char *str_enc, size_t len);
-extern int blkid_safe_string(const char *str, char *str_safe, size_t len);
-
-/* evaluate.c */
-extern int blkid_send_uevent(const char *devname, const char *action);
-extern char *blkid_evaluate_tag(const char *token, const char *value,
- blkid_cache *cache);
-extern char *blkid_evaluate_spec(const char *spec, blkid_cache *cache);
-
-/* probe.c */
-extern blkid_probe blkid_new_probe(void);
-extern blkid_probe blkid_new_probe_from_filename(const char *filename);
-extern void blkid_free_probe(blkid_probe pr);
-extern void blkid_reset_probe(blkid_probe pr);
-
-extern int blkid_probe_set_device(blkid_probe pr, int fd,
- blkid_loff_t off, blkid_loff_t size);
-
-extern dev_t blkid_probe_get_devno(blkid_probe pr);
-extern dev_t blkid_probe_get_wholedisk_devno(blkid_probe pr);
-extern int blkid_probe_is_wholedisk(blkid_probe pr);
-
-extern blkid_loff_t blkid_probe_get_size(blkid_probe pr);
-extern blkid_loff_t blkid_probe_get_offset(blkid_probe pr);
-extern unsigned int blkid_probe_get_sectorsize(blkid_probe pr);
-extern blkid_loff_t blkid_probe_get_sectors(blkid_probe pr);
-
-extern int blkid_probe_get_fd(blkid_probe pr);
-
-/*
- * superblocks probing
- */
-extern int blkid_known_fstype(const char *fstype);
-extern int blkid_superblocks_get_name(size_t idx, const char **name, int *usage);
-
-extern int blkid_probe_enable_superblocks(blkid_probe pr, int enable);
-
-#define BLKID_SUBLKS_LABEL (1 << 1) /* read LABEL from superblock */
-#define BLKID_SUBLKS_LABELRAW (1 << 2) /* read and define LABEL_RAW result value*/
-#define BLKID_SUBLKS_UUID (1 << 3) /* read UUID from superblock */
-#define BLKID_SUBLKS_UUIDRAW (1 << 4) /* read and define UUID_RAW result value */
-#define BLKID_SUBLKS_TYPE (1 << 5) /* define TYPE result value */
-#define BLKID_SUBLKS_SECTYPE (1 << 6) /* define compatible fs type (second type) */
-#define BLKID_SUBLKS_USAGE (1 << 7) /* define USAGE result value */
-#define BLKID_SUBLKS_VERSION (1 << 8) /* read FS type from superblock */
-#define BLKID_SUBLKS_MAGIC (1 << 9) /* define SBMAGIC and SBMAGIC_OFFSET */
-
-#define BLKID_SUBLKS_DEFAULT (BLKID_SUBLKS_LABEL | BLKID_SUBLKS_UUID | \
- BLKID_SUBLKS_TYPE | BLKID_SUBLKS_SECTYPE)
-
-extern int blkid_probe_set_superblocks_flags(blkid_probe pr, int flags);
-
-extern int blkid_probe_reset_superblocks_filter(blkid_probe pr);
-extern int blkid_probe_invert_superblocks_filter(blkid_probe pr);
-
-/**
- * BLKID_FLTR_NOTIN
- */
-#define BLKID_FLTR_NOTIN 1
-/**
- * BLKID_FLTR_ONLYIN
- */
-#define BLKID_FLTR_ONLYIN 2
-extern int blkid_probe_filter_superblocks_type(blkid_probe pr, int flag, char *names[]);
-
-#define BLKID_USAGE_FILESYSTEM (1 << 1)
-#define BLKID_USAGE_RAID (1 << 2)
-#define BLKID_USAGE_CRYPTO (1 << 3)
-#define BLKID_USAGE_OTHER (1 << 4)
-extern int blkid_probe_filter_superblocks_usage(blkid_probe pr, int flag, int usage);
-
-/*
- * topology probing
- */
-extern int blkid_probe_enable_topology(blkid_probe pr, int enable);
-
-/* binary interface */
-extern blkid_topology blkid_probe_get_topology(blkid_probe pr);
-
-extern unsigned long blkid_topology_get_alignment_offset(blkid_topology tp);
-extern unsigned long blkid_topology_get_minimum_io_size(blkid_topology tp);
-extern unsigned long blkid_topology_get_optimal_io_size(blkid_topology tp);
-extern unsigned long blkid_topology_get_logical_sector_size(blkid_topology tp);
-extern unsigned long blkid_topology_get_physical_sector_size(blkid_topology tp);
-
-/*
- * partitions probing
- */
-extern int blkid_known_pttype(const char *pttype);
-extern int blkid_probe_enable_partitions(blkid_probe pr, int enable);
-
-extern int blkid_probe_reset_partitions_filter(blkid_probe pr);
-extern int blkid_probe_invert_partitions_filter(blkid_probe pr);
-extern int blkid_probe_filter_partitions_type(blkid_probe pr, int flag, char *names[]);
-
-
-/* partitions probing flags */
-#define BLKID_PARTS_FORCE_GPT (1 << 1)
-#define BLKID_PARTS_ENTRY_DETAILS (1 << 2)
-#define BLKID_PARTS_MAGIC (1 << 3)
-extern int blkid_probe_set_partitions_flags(blkid_probe pr, int flags);
-
-/* binary interface */
-extern blkid_partlist blkid_probe_get_partitions(blkid_probe pr);
-
-extern int blkid_partlist_numof_partitions(blkid_partlist ls);
-extern blkid_parttable blkid_partlist_get_table(blkid_partlist ls);
-extern blkid_partition blkid_partlist_get_partition(blkid_partlist ls, int n);
-extern blkid_partition blkid_partlist_devno_to_partition(blkid_partlist ls, dev_t devno);
-
-extern blkid_parttable blkid_partition_get_table(blkid_partition par);
-extern const char *blkid_partition_get_name(blkid_partition par);
-extern const char *blkid_partition_get_uuid(blkid_partition par);
-extern int blkid_partition_get_partno(blkid_partition par);
-extern blkid_loff_t blkid_partition_get_start(blkid_partition par);
-extern blkid_loff_t blkid_partition_get_size(blkid_partition par);
-extern int blkid_partition_get_type(blkid_partition par);
-extern const char *blkid_partition_get_type_string(blkid_partition par);
-extern unsigned long long blkid_partition_get_flags(blkid_partition par);
-extern int blkid_partition_is_logical(blkid_partition par);
-extern int blkid_partition_is_extended(blkid_partition par);
-extern int blkid_partition_is_primary(blkid_partition par);
-
-extern const char *blkid_parttable_get_type(blkid_parttable tab);
-extern blkid_loff_t blkid_parttable_get_offset(blkid_parttable tab);
-extern blkid_partition blkid_parttable_get_parent(blkid_parttable tab);
-
-/*
- * NAME=value low-level interface
- */
-extern int blkid_do_probe(blkid_probe pr);
-extern int blkid_do_safeprobe(blkid_probe pr);
-extern int blkid_do_fullprobe(blkid_probe pr);
-
-extern int blkid_probe_numof_values(blkid_probe pr);
-extern int blkid_probe_get_value(blkid_probe pr, int num, const char **name,
- const char **data, size_t *len);
-extern int blkid_probe_lookup_value(blkid_probe pr, const char *name,
- const char **data, size_t *len);
-extern int blkid_probe_has_value(blkid_probe pr, const char *name);
-
-extern int blkid_do_wipe(blkid_probe pr, int dryrun);
-
-/*
- * Deprecated functions/macros
- */
-#ifndef BLKID_DISABLE_DEPRECATED
-
-#define BLKID_PROBREQ_LABEL BLKID_SUBLKS_LABEL
-#define BLKID_PROBREQ_LABELRAW BLKID_SUBLKS_LABELRAW
-#define BLKID_PROBREQ_UUID BLKID_SUBLKS_UUID
-#define BLKID_PROBREQ_UUIDRAW BLKID_SUBLKS_UUIDRAW
-#define BLKID_PROBREQ_TYPE BLKID_SUBLKS_TYPE
-#define BLKID_PROBREQ_SECTYPE BLKID_SUBLKS_SECTYPE
-#define BLKID_PROBREQ_USAGE BLKID_SUBLKS_USAGE
-#define BLKID_PROBREQ_VERSION BLKID_SUBLKS_VERSION
-
-extern int blkid_probe_set_request(blkid_probe pr, int flags);
-extern int blkid_probe_filter_usage(blkid_probe pr, int flag, int usage);
-extern int blkid_probe_filter_types(blkid_probe pr, int flag, char *names[]);
-extern int blkid_probe_invert_filter(blkid_probe pr);
-extern int blkid_probe_reset_filter(blkid_probe pr);
-
-#endif /* BLKID_DISABLE_DEPRECATED */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _BLKID_BLKID_H */
+++ /dev/null
-/*
- * blkidP.h - Internal interfaces for libblkid
- *
- * Copyright (C) 2001 Andreas Dilger
- * Copyright (C) 2003 Theodore Ts'o
- *
- * %Begin-Header%
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- * %End-Header%
- */
-
-#ifndef _BLKID_BLKIDP_H
-#define _BLKID_BLKIDP_H
-
-
-#define CONFIG_BLKID_DEBUG 1
-
-#include <sys/types.h>
-#include <dirent.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdint.h>
-
-#include "c.h"
-#include "bitops.h" /* $(top_srcdir)/include/ */
-#include "blkdev.h"
-
-#include "blkid.h"
-#include <libubox/list.h>
-
-/*
- * This describes the attributes of a specific device.
- * We can traverse all of the tags by bid_tags (linking to the tag bit_names).
- * The bid_label and bid_uuid fields are shortcuts to the LABEL and UUID tag
- * values, if they exist.
- */
-struct blkid_struct_dev
-{
- struct list_head bid_devs; /* All devices in the cache */
- struct list_head bid_tags; /* All tags for this device */
- blkid_cache bid_cache; /* Dev belongs to this cache */
- char *bid_name; /* Device inode pathname */
- char *bid_type; /* Preferred device TYPE */
- int bid_pri; /* Device priority */
- dev_t bid_devno; /* Device major/minor number */
- time_t bid_time; /* Last update time of device */
- suseconds_t bid_utime; /* Last update time (microseconds) */
- unsigned int bid_flags; /* Device status bitflags */
- char *bid_label; /* Shortcut to device LABEL */
- char *bid_uuid; /* Shortcut to binary UUID */
-};
-
-#define BLKID_BID_FL_VERIFIED 0x0001 /* Device data validated from disk */
-#define BLKID_BID_FL_INVALID 0x0004 /* Device is invalid */
-#define BLKID_BID_FL_REMOVABLE 0x0008 /* Device added by blkid_probe_all_removable() */
-
-/*
- * Each tag defines a NAME=value pair for a particular device. The tags
- * are linked via bit_names for a single device, so that traversing the
- * names list will get you a list of all tags associated with a device.
- * They are also linked via bit_values for all devices, so one can easily
- * search all tags with a given NAME for a specific value.
- */
-struct blkid_struct_tag
-{
- struct list_head bit_tags; /* All tags for this device */
- struct list_head bit_names; /* All tags with given NAME */
- char *bit_name; /* NAME of tag (shared) */
- char *bit_val; /* value of tag */
- blkid_dev bit_dev; /* pointer to device */
-};
-typedef struct blkid_struct_tag *blkid_tag;
-
-/*
- * Chain IDs
- */
-enum {
- BLKID_CHAIN_SUBLKS, /* FS/RAID superblocks (enabled by default) */
- BLKID_CHAIN_TOPLGY, /* Block device topology */
- BLKID_CHAIN_PARTS, /* Partition tables */
-
- BLKID_NCHAINS /* number of chains */
-};
-
-struct blkid_chain {
- const struct blkid_chaindrv *driver; /* chain driver */
-
- int enabled; /* boolean */
- int flags; /* BLKID_<chain>_* */
- int binary; /* boolean */
- int idx; /* index of the current prober (or -1) */
- unsigned long *fltr; /* filter or NULL */
- void *data; /* private chain data or NULL */
-};
-
-/*
- * Chain driver
- */
-struct blkid_chaindrv {
- const size_t id; /* BLKID_CHAIN_* */
- const char *name; /* name of chain (for debug purpose) */
- const int dflt_flags; /* default chain flags */
- const int dflt_enabled; /* default enabled boolean */
- int has_fltr; /* boolean */
-
- const struct blkid_idinfo **idinfos; /* description of probing functions */
- const size_t nidinfos; /* number of idinfos */
-
- /* driver operations */
- int (*probe)(blkid_probe, struct blkid_chain *);
- int (*safeprobe)(blkid_probe, struct blkid_chain *);
- void (*free_data)(blkid_probe, void *);
-};
-
-/*
- * Low-level probe result
- */
-#define BLKID_PROBVAL_BUFSIZ 64
-
-#define BLKID_NVALS_SUBLKS 14
-#define BLKID_NVALS_TOPLGY 5
-#define BLKID_NVALS_PARTS 13
-
-/* Max number of all values in probing result */
-#define BLKID_NVALS (BLKID_NVALS_SUBLKS + \
- BLKID_NVALS_TOPLGY + \
- BLKID_NVALS_PARTS)
-
-struct blkid_prval
-{
- const char *name; /* value name */
- unsigned char data[BLKID_PROBVAL_BUFSIZ]; /* value data */
- size_t len; /* length of value data */
-
- struct blkid_chain *chain; /* owner */
-};
-
-/*
- * Filesystem / Raid magic strings
- */
-/*
- * Filesystem / Raid description
- */
-#define BLKID_NONE_MAGIC {{ NULL }}
-
-/*
- * tolerant FS - can share the same device with more filesystems (e.g. typical
- * on CD-ROMs). We need this flag to detect ambivalent results (e.g. valid fat
- * and valid linux swap on the same device).
- */
-#define BLKID_IDINFO_TOLERANT (1 << 1)
-
-struct blkid_bufinfo {
- unsigned char *data;
- blkid_loff_t off;
- blkid_loff_t len;
- struct list_head bufs; /* list of buffers */
-};
-
-/* private flags library flags */
-#define BLKID_FL_PRIVATE_FD (1 << 1) /* see blkid_new_probe_from_filename() */
-#define BLKID_FL_TINY_DEV (1 << 2) /* <= 1.47MiB (floppy or so) */
-#define BLKID_FL_CDROM_DEV (1 << 3) /* is a CD/DVD drive */
-
-/* private per-probing flags */
-#define BLKID_PROBE_FL_IGNORE_PT (1 << 1) /* ignore partition table */
-
-extern blkid_probe blkid_clone_probe(blkid_probe parent);
-extern blkid_probe blkid_probe_get_wholedisk_probe(blkid_probe pr);
-
-/*
- * Evaluation methods (for blkid_eval_* API)
- */
-enum {
- BLKID_EVAL_UDEV = 0,
- BLKID_EVAL_SCAN,
-
- __BLKID_EVAL_LAST
-};
-
-/*
- * Library config options
- */
-struct blkid_config {
- int eval[__BLKID_EVAL_LAST]; /* array with EVALUATION=<udev,cache> options */
- int nevals; /* number of elems in eval array */
- int uevent; /* SEND_UEVENT=<yes|not> option */
- char *cachefile; /* CACHE_FILE=<path> option */
-};
-
-extern struct blkid_config *blkid_read_config(const char *filename);
-extern void blkid_free_config(struct blkid_config *conf);
-
-/*
- * Minimum number of seconds between device probes, even when reading
- * from the cache. This is to avoid re-probing all devices which were
- * just probed by another program that does not share the cache.
- */
-#define BLKID_PROBE_MIN 2
-
-/*
- * Time in seconds an entry remains verified in the in-memory cache
- * before being reverified (in case of long-running processes that
- * keep a cache in memory and continue to use it for a long time).
- */
-#define BLKID_PROBE_INTERVAL 200
-
-/* This describes an entire blkid cache file and probed devices.
- * We can traverse all of the found devices via bic_list.
- * We can traverse all of the tag types by bic_tags, which hold empty tags
- * for each tag type. Those tags can be used as list_heads for iterating
- * through all devices with a specific tag type (e.g. LABEL).
- */
-struct blkid_struct_cache
-{
- struct list_head bic_devs; /* List head of all devices */
- struct list_head bic_tags; /* List head of all tag types */
- time_t bic_time; /* Last probe time */
- time_t bic_ftime; /* Mod time of the cachefile */
- unsigned int bic_flags; /* Status flags of the cache */
- char *bic_filename; /* filename of cache */
- blkid_probe probe; /* low-level probing stuff */
-};
-
-#define BLKID_BIC_FL_PROBED 0x0002 /* We probed /proc/partition devices */
-#define BLKID_BIC_FL_CHANGED 0x0004 /* Cache has changed from disk */
-
-extern char *blkid_strdup(const char *s);
-extern char *blkid_strndup(const char *s, const int length);
-extern char *blkid_strconcat(const char *a, const char *b, const char *c);
-
-/* config file */
-#define BLKID_CONFIG_FILE "/etc/blkid.conf"
-
-/* cache file on systemds with /run */
-#define BLKID_RUNTIME_TOPDIR "/run"
-#define BLKID_RUNTIME_DIR BLKID_RUNTIME_TOPDIR "/blkid"
-#define BLKID_CACHE_FILE BLKID_RUNTIME_DIR "/blkid.tab"
-
-/* old systems */
-#define BLKID_CACHE_FILE_OLD "/etc/blkid.tab"
-
-#define BLKID_ERR_IO 5
-#define BLKID_ERR_PROC 9
-#define BLKID_ERR_MEM 12
-#define BLKID_ERR_CACHE 14
-#define BLKID_ERR_DEV 19
-#define BLKID_ERR_PARAM 22
-#define BLKID_ERR_BIG 27
-
-/*
- * Priority settings for different types of devices
- */
-#define BLKID_PRI_UBI 50
-#define BLKID_PRI_DM 40
-#define BLKID_PRI_EVMS 30
-#define BLKID_PRI_LVM 20
-#define BLKID_PRI_MD 10
-
-#if defined(TEST_PROGRAM) && !defined(CONFIG_BLKID_DEBUG)
-#define CONFIG_BLKID_DEBUG
-#endif
-
-#define DEBUG_CACHE 0x0001
-#define DEBUG_DUMP 0x0002
-#define DEBUG_DEV 0x0004
-#define DEBUG_DEVNAME 0x0008
-#define DEBUG_DEVNO 0x0010
-#define DEBUG_PROBE 0x0020
-#define DEBUG_READ 0x0040
-#define DEBUG_RESOLVE 0x0080
-#define DEBUG_SAVE 0x0100
-#define DEBUG_TAG 0x0200
-#define DEBUG_LOWPROBE 0x0400
-#define DEBUG_CONFIG 0x0800
-#define DEBUG_EVALUATE 0x1000
-#define DEBUG_INIT 0x8000
-#define DEBUG_ALL 0xFFFF
-
-#ifdef CONFIG_BLKID_DEBUG
-extern int blkid_debug_mask;
-extern void blkid_init_debug(int mask);
-extern void blkid_debug_dump_dev(blkid_dev dev);
-extern void blkid_debug_dump_tag(blkid_tag tag);
-
-#define DBG(m,x) if ((m) & blkid_debug_mask) x;
-
-#else /* !CONFIG_BLKID_DEBUG */
-#define DBG(m,x)
-#define blkid_init_debug(x)
-#endif /* CONFIG_BLKID_DEBUG */
-
-/* devno.c */
-struct dir_list {
- char *name;
- struct dir_list *next;
-};
-extern void blkid__scan_dir(char *, dev_t, struct dir_list **, char **);
-extern int blkid_driver_has_major(const char *drvname, int major);
-
-/* lseek.c */
-extern blkid_loff_t blkid_llseek(int fd, blkid_loff_t offset, int whence);
-
-/* read.c */
-extern void blkid_read_cache(blkid_cache cache);
-
-/* save.c */
-extern int blkid_flush_cache(blkid_cache cache);
-
-/* cache */
-extern char *blkid_safe_getenv(const char *arg);
-extern char *blkid_get_cache_filename(struct blkid_config *conf);
-
-/*
- * Functions to create and find a specific tag type: tag.c
- */
-extern void blkid_free_tag(blkid_tag tag);
-extern blkid_tag blkid_find_tag_dev(blkid_dev dev, const char *type);
-extern int blkid_set_tag(blkid_dev dev, const char *name,
- const char *value, const int vlength);
-
-/*
- * Functions to create and find a specific tag type: dev.c
- */
-extern blkid_dev blkid_new_dev(void);
-extern void blkid_free_dev(blkid_dev dev);
-
-/* probe.c */
-extern int blkid_probe_is_tiny(blkid_probe pr);
-extern int blkid_probe_is_cdrom(blkid_probe pr);
-extern unsigned char *blkid_probe_get_buffer(blkid_probe pr,
- blkid_loff_t off, blkid_loff_t len);
-
-extern unsigned char *blkid_probe_get_sector(blkid_probe pr, unsigned int sector);
-
-extern int blkid_probe_get_dimension(blkid_probe pr,
- blkid_loff_t *off, blkid_loff_t *size);
-
-extern int blkid_probe_set_dimension(blkid_probe pr,
- blkid_loff_t off, blkid_loff_t size);
-
-extern int blkid_probe_get_idmag(blkid_probe pr, const struct blkid_idinfo *id,
- blkid_loff_t *offset, const struct blkid_idmag **res);
-
-/* returns superblok according to 'struct blkid_idmag' */
-#define blkid_probe_get_sb(_pr, _mag, type) \
- ((type *) blkid_probe_get_buffer((_pr),\
- (_mag)->kboff << 10, sizeof(type)))
-
-extern blkid_partlist blkid_probe_get_partlist(blkid_probe pr);
-
-extern int blkid_probe_is_covered_by_pt(blkid_probe pr,
- blkid_loff_t offset, blkid_loff_t size);
-
-extern void blkid_probe_chain_reset_vals(blkid_probe pr, struct blkid_chain *chn);
-extern int blkid_probe_chain_copy_vals(blkid_probe pr, struct blkid_chain *chn,
- struct blkid_prval *vals, int nvals);
-extern struct blkid_prval *blkid_probe_assign_value(blkid_probe pr, const char *name);
-extern int blkid_probe_reset_last_value(blkid_probe pr);
-extern void blkid_probe_append_vals(blkid_probe pr, struct blkid_prval *vals, int nvals);
-
-extern struct blkid_chain *blkid_probe_get_chain(blkid_probe pr);
-
-extern struct blkid_prval *__blkid_probe_get_value(blkid_probe pr, int num);
-extern struct blkid_prval *__blkid_probe_lookup_value(blkid_probe pr, const char *name);
-
-extern unsigned long *blkid_probe_get_filter(blkid_probe pr, int chain, int create);
-extern int __blkid_probe_invert_filter(blkid_probe pr, int chain);
-extern int __blkid_probe_reset_filter(blkid_probe pr, int chain);
-extern int __blkid_probe_filter_types(blkid_probe pr, int chain, int flag, char *names[]);
-
-extern void *blkid_probe_get_binary_data(blkid_probe pr, struct blkid_chain *chn);
-
-extern int blkid_probe_set_value(blkid_probe pr, const char *name,
- unsigned char *data, size_t len);
-extern int blkid_probe_vsprintf_value(blkid_probe pr, const char *name,
- const char *fmt, va_list ap);
-extern int blkid_probe_sprintf_value(blkid_probe pr, const char *name,
- const char *fmt, ...);
-extern int blkid_probe_set_magic(blkid_probe pr, blkid_loff_t offset,
- size_t len, unsigned char *magic);
-
-extern void blkid_unparse_uuid(const unsigned char *uuid, char *str, size_t len);
-extern size_t blkid_rtrim_whitespace(unsigned char *str);
-
-extern void blkid_probe_set_wiper(blkid_probe pr, blkid_loff_t off,
- blkid_loff_t size);
-extern int blkid_probe_is_wiped(blkid_probe pr, struct blkid_chain **chn,
- blkid_loff_t off, blkid_loff_t size);
-extern void blkid_probe_use_wiper(blkid_probe pr, blkid_loff_t off, blkid_loff_t size);
-
-/* filter bitmap macros */
-#define blkid_bmp_wordsize (8 * sizeof(unsigned long))
-#define blkid_bmp_idx_bit(item) (1UL << ((item) % blkid_bmp_wordsize))
-#define blkid_bmp_idx_byte(item) ((item) / blkid_bmp_wordsize)
-
-#define blkid_bmp_set_item(bmp, item) \
- ((bmp)[ blkid_bmp_idx_byte(item) ] |= blkid_bmp_idx_bit(item))
-
-#define blkid_bmp_unset_item(bmp, item) \
- ((bmp)[ blkid_bmp_idx_byte(item) ] &= ~blkid_bmp_idx_bit(item))
-
-#define blkid_bmp_get_item(bmp, item) \
- ((bmp)[ blkid_bmp_idx_byte(item) ] & blkid_bmp_idx_bit(item))
-
-#define blkid_bmp_nwords(max_items) \
- (((max_items) + blkid_bmp_wordsize) / blkid_bmp_wordsize)
-
-#define blkid_bmp_nbytes(max_items) \
- (blkid_bmp_nwords(max_items) * sizeof(unsigned long))
-
-/* encode.c */
-extern size_t blkid_encode_to_utf8(int enc, unsigned char *dest, size_t len,
- const unsigned char *src, size_t count);
-
-#define BLKID_ENC_UTF16BE 0
-#define BLKID_ENC_UTF16LE 1
-
-#endif /* _BLKID_BLKIDP_H */
+++ /dev/null
-/*
- * Fundamental C definitions.
- */
-
-#ifndef UTIL_LINUX_C_H
-#define UTIL_LINUX_C_H
-
-#include <limits.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#ifdef HAVE_ERR_H
-# include <err.h>
-#endif
-
-/*
- * Compiler specific stuff
- */
-#ifndef __GNUC_PREREQ
-# if defined __GNUC__ && defined __GNUC_MINOR__
-# define __GNUC_PREREQ(maj, min) \
- ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
-# else
-# define __GNUC_PREREQ(maj, min) 0
-# endif
-#endif
-
-#ifdef __GNUC__
-
-/* &a[0] degrades to a pointer: a different type from an array */
-# define __must_be_array(a) \
- UL_BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(__typeof__(a), __typeof__(&a[0])))
-
-# define ignore_result(x) ({ \
- __typeof__(x) __dummy __attribute__((__unused__)) = (x); (void) __dummy; \
-})
-
-#else /* !__GNUC__ */
-# define __must_be_array(a) 0
-# define __attribute__(_arg_)
-# define ignore_result(x) ((void) (x))
-#endif /* !__GNUC__ */
-
-/*
- * Function attributes
- */
-#ifndef __ul_alloc_size
-# if __GNUC_PREREQ (4, 3)
-# define __ul_alloc_size(s) __attribute__((alloc_size(s)))
-# else
-# define __ul_alloc_size(s)
-# endif
-#endif
-
-#ifndef __ul_calloc_size
-# if __GNUC_PREREQ (4, 3)
-# define __ul_calloc_size(n, s) __attribute__((alloc_size(n, s)))
-# else
-# define __ul_calloc_size(n, s)
-# endif
-#endif
-
-/* Force a compilation error if condition is true, but also produce a
- * result (of value 0 and type size_t), so the expression can be used
- * e.g. in a structure initializer (or where-ever else comma expressions
- * aren't permitted).
- */
-#define UL_BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
-#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
-
-#ifndef ARRAY_SIZE
-# define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
-#endif
-
-#ifndef PATH_MAX
-# define PATH_MAX 4096
-#endif
-
-#ifndef TRUE
-# define TRUE 1
-#endif
-
-#ifndef FALSE
-# define FALSE 0
-#endif
-
-#ifndef min
-# define min(x, y) ({ \
- __typeof__(x) _min1 = (x); \
- __typeof__(y) _min2 = (y); \
- (void) (&_min1 == &_min2); \
- _min1 < _min2 ? _min1 : _min2; })
-#endif
-
-#ifndef max
-# define max(x, y) ({ \
- __typeof__(x) _max1 = (x); \
- __typeof__(y) _max2 = (y); \
- (void) (&_max1 == &_max2); \
- _max1 > _max2 ? _max1 : _max2; })
-#endif
-
-#ifndef offsetof
-#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
-#endif
-
-#ifndef container_of
-#define container_of(ptr, type, member) ({ \
- const __typeof__( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
-#endif
-
-#ifndef HAVE_PROGRAM_INVOCATION_SHORT_NAME
-# ifdef HAVE___PROGNAME
-extern char *__progname;
-# define program_invocation_short_name __progname
-# else
-# ifdef HAVE_GETEXECNAME
-# define program_invocation_short_name \
- prog_inv_sh_nm_from_file(getexecname(), 0)
-# else
-# define program_invocation_short_name \
- prog_inv_sh_nm_from_file(__FILE__, 1)
-# endif
-static char prog_inv_sh_nm_buf[256];
-static inline char *
-prog_inv_sh_nm_from_file(char *f, char stripext)
-{
- char *t;
-
- if ((t = strrchr(f, '/')) != NULL)
- t++;
- else
- t = f;
-
- strncpy(prog_inv_sh_nm_buf, t, sizeof(prog_inv_sh_nm_buf) - 1);
- prog_inv_sh_nm_buf[sizeof(prog_inv_sh_nm_buf) - 1] = '\0';
-
- if (stripext && (t = strrchr(prog_inv_sh_nm_buf, '.')) != NULL)
- *t = '\0';
-
- return prog_inv_sh_nm_buf;
-}
-# endif
-#endif
-
-
-#ifndef HAVE_ERR_H
-static inline void
-errmsg(char doexit, int excode, char adderr, const char *fmt, ...)
-{
- fprintf(stderr, "%s: ", program_invocation_short_name);
- if (fmt != NULL) {
- va_list argp;
- va_start(argp, fmt);
- vfprintf(stderr, fmt, argp);
- va_end(argp);
- if (adderr)
- fprintf(stderr, ": ");
- }
- if (adderr)
- fprintf(stderr, "%m");
- fprintf(stderr, "\n");
- if (doexit)
- exit(excode);
-}
-
-#ifndef HAVE_ERR
-# define err(E, FMT...) errmsg(1, E, 1, FMT)
-#endif
-
-#ifndef HAVE_ERRX
-# define errx(E, FMT...) errmsg(1, E, 0, FMT)
-#endif
-
-#ifndef HAVE_WARN
-# define warn(FMT...) errmsg(0, 0, 1, FMT)
-#endif
-
-#ifndef HAVE_WARNX
-# define warnx(FMT...) errmsg(0, 0, 0, FMT)
-#endif
-#endif /* !HAVE_ERR_H */
-
-
-static inline __attribute__((const)) int is_power_of_2(unsigned long num)
-{
- return (num != 0 && ((num & (num - 1)) == 0));
-}
-
-#ifndef HAVE_LOFF_T
-typedef int64_t loff_t;
-#endif
-
-#if !defined(HAVE_DIRFD) && (!defined(HAVE_DECL_DIRFD) || HAVE_DECL_DIRFD == 0) && defined(HAVE_DIR_DD_FD)
-#include <sys/types.h>
-#include <dirent.h>
-static inline int dirfd(DIR *d)
-{
- return d->dd_fd;
-}
-#endif
-
-/*
- * Fallback defines for old versions of glibc
- */
-#include <fcntl.h>
-#ifndef O_CLOEXEC
-#define O_CLOEXEC 0
-#endif
-
-#ifndef AI_ADDRCONFIG
-#define AI_ADDRCONFIG 0x0020
-#endif
-
-#ifndef IUTF8
-#define IUTF8 0040000
-#endif
-
-/*
- * Constant strings for usage() functions. For more info see
- * Documentation/howto-usage-function.txt and sys-utils/arch.c
- */
-#define USAGE_HEADER _("\nUsage:\n")
-#define USAGE_OPTIONS _("\nOptions:\n")
-#define USAGE_SEPARATOR _("\n")
-#define USAGE_HELP _(" -h, --help display this help and exit\n")
-#define USAGE_VERSION _(" -V, --version output version information and exit\n")
-#define USAGE_MAN_TAIL(_man) _("\nFor more details see %s.\n"), _man
-
-#define UTIL_LINUX_VERSION _("%s from %s\n"), program_invocation_short_name, PACKAGE_STRING
-
-/*
- * scanf modifiers for "strings allocation"
- */
-#ifdef HAVE_SCANF_MS_MODIFIER
-#define UL_SCNsA "%ms"
-#elif defined(HAVE_SCANF_AS_MODIFIER)
-#define UL_SCNsA "%as"
-#endif
-
-#endif /* UTIL_LINUX_C_H */
+++ /dev/null
-/*
- * Copyright (C) 1999, 2001 by Andries Brouwer
- * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-#include <stdint.h>
-#ifdef __linux__
-#include <sys/utsname.h>
-#endif
-#include <time.h>
-
-#include "linux_version.h"
-#include "superblocks.h"
-
-struct ext2_super_block {
- uint32_t s_inodes_count;
- uint32_t s_blocks_count;
- uint32_t s_r_blocks_count;
- uint32_t s_free_blocks_count;
- uint32_t s_free_inodes_count;
- uint32_t s_first_data_block;
- uint32_t s_log_block_size;
- uint32_t s_dummy3[7];
- unsigned char s_magic[2];
- uint16_t s_state;
- uint16_t s_errors;
- uint16_t s_minor_rev_level;
- uint32_t s_lastcheck;
- uint32_t s_checkinterval;
- uint32_t s_creator_os;
- uint32_t s_rev_level;
- uint16_t s_def_resuid;
- uint16_t s_def_resgid;
- uint32_t s_first_ino;
- uint16_t s_inode_size;
- uint16_t s_block_group_nr;
- uint32_t s_feature_compat;
- uint32_t s_feature_incompat;
- uint32_t s_feature_ro_compat;
- unsigned char s_uuid[16];
- char s_volume_name[16];
- char s_last_mounted[64];
- uint32_t s_algorithm_usage_bitmap;
- uint8_t s_prealloc_blocks;
- uint8_t s_prealloc_dir_blocks;
- uint16_t s_reserved_gdt_blocks;
- uint8_t s_journal_uuid[16];
- uint32_t s_journal_inum;
- uint32_t s_journal_dev;
- uint32_t s_last_orphan;
- uint32_t s_hash_seed[4];
- uint8_t s_def_hash_version;
- uint8_t s_jnl_backup_type;
- uint16_t s_reserved_word_pad;
- uint32_t s_default_mount_opts;
- uint32_t s_first_meta_bg;
- uint32_t s_mkfs_time;
- uint32_t s_jnl_blocks[17];
- uint32_t s_blocks_count_hi;
- uint32_t s_r_blocks_count_hi;
- uint32_t s_free_blocks_hi;
- uint16_t s_min_extra_isize;
- uint16_t s_want_extra_isize;
- uint32_t s_flags;
- uint16_t s_raid_stride;
- uint16_t s_mmp_interval;
- uint64_t s_mmp_block;
- uint32_t s_raid_stripe_width;
- uint32_t s_reserved[163];
-} __attribute__((packed));
-
-/* magic string */
-#define EXT_SB_MAGIC "\123\357"
-/* supper block offset */
-#define EXT_SB_OFF 0x400
-/* supper block offset in kB */
-#define EXT_SB_KBOFF (EXT_SB_OFF >> 10)
-/* magic string offset within super block */
-#define EXT_MAG_OFF 0x38
-
-
-
-/* for s_flags */
-#define EXT2_FLAGS_TEST_FILESYS 0x0004
-
-/* for s_feature_compat */
-#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
-
-/* for s_feature_ro_compat */
-#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
-#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
-#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
-#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
-#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
-#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
-#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
-
-/* for s_feature_incompat */
-#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
-#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004
-#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008
-#define EXT2_FEATURE_INCOMPAT_META_BG 0x0010
-#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */
-#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
-#define EXT4_FEATURE_INCOMPAT_MMP 0x0100
-#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
-
-#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
- EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
-#define EXT2_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \
- EXT2_FEATURE_INCOMPAT_META_BG)
-#define EXT2_FEATURE_INCOMPAT_UNSUPPORTED ~EXT2_FEATURE_INCOMPAT_SUPP
-#define EXT2_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT2_FEATURE_RO_COMPAT_SUPP
-
-#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
- EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
-#define EXT3_FEATURE_INCOMPAT_SUPP (EXT2_FEATURE_INCOMPAT_FILETYPE| \
- EXT3_FEATURE_INCOMPAT_RECOVER| \
- EXT2_FEATURE_INCOMPAT_META_BG)
-#define EXT3_FEATURE_INCOMPAT_UNSUPPORTED ~EXT3_FEATURE_INCOMPAT_SUPP
-#define EXT3_FEATURE_RO_COMPAT_UNSUPPORTED ~EXT3_FEATURE_RO_COMPAT_SUPP
-
-/*
- * Check to see if a filesystem is in /proc/filesystems.
- * Returns 1 if found, 0 if not
- */
-static int fs_proc_check(const char *fs_name)
-{
- FILE *f;
- char buf[80], *cp, *t;
-
- f = fopen("/proc/filesystems", "r");
- if (!f)
- return 0;
- while (!feof(f)) {
- if (!fgets(buf, sizeof(buf), f))
- break;
- cp = buf;
- if (!isspace(*cp)) {
- while (*cp && !isspace(*cp))
- cp++;
- }
- while (*cp && isspace(*cp))
- cp++;
- if ((t = strchr(cp, '\n')) != NULL)
- *t = 0;
- if ((t = strchr(cp, '\t')) != NULL)
- *t = 0;
- if ((t = strchr(cp, ' ')) != NULL)
- *t = 0;
- if (!strcmp(fs_name, cp)) {
- fclose(f);
- return 1;
- }
- }
- fclose(f);
- return (0);
-}
-
-/*
- * Check to see if a filesystem is available as a module
- * Returns 1 if found, 0 if not
- */
-static int check_for_modules(const char *fs_name)
-{
-#ifdef __linux__
- struct utsname uts;
- FILE *f;
- char buf[1024], *cp;
- int namesz;
-
- if (uname(&uts))
- return 0;
- snprintf(buf, sizeof(buf), "/lib/modules/%s/modules.dep", uts.release);
-
- f = fopen(buf, "r");
- if (!f)
- return 0;
-
- namesz = strlen(fs_name);
-
- while (!feof(f)) {
- if (!fgets(buf, sizeof(buf), f))
- break;
- if ((cp = strchr(buf, ':')) != NULL)
- *cp = 0;
- else
- continue;
- if ((cp = strrchr(buf, '/')) == NULL)
- continue;
- cp++;
-
- if (!strncmp(cp, fs_name, namesz) &&
- (!strcmp(cp + namesz, ".ko") ||
- !strcmp(cp + namesz, ".ko.gz"))) {
- fclose(f);
- return 1;
- }
- }
- fclose(f);
-#endif /* __linux__ */
- return 0;
-}
-
-/*
- * Starting in 2.6.29, ext4 can be used to support filesystems
- * without a journal.
- */
-#define EXT4_SUPPORTS_EXT2 KERNEL_VERSION(2, 6, 29)
-
-static int system_supports_ext2(void)
-{
- static time_t last_check = 0;
- static int ret = -1;
- time_t now = time(0);
-
- if (ret != -1 || (now - last_check) < 5)
- return ret;
- last_check = now;
- ret = (fs_proc_check("ext2") || check_for_modules("ext2"));
- return ret;
-}
-
-static int system_supports_ext4(void)
-{
- static time_t last_check = 0;
- static int ret = -1;
- time_t now = time(0);
-
- if (ret != -1 || (now - last_check) < 5)
- return ret;
- last_check = now;
- ret = (fs_proc_check("ext4") || check_for_modules("ext4"));
- return ret;
-}
-
-static int system_supports_ext4dev(void)
-{
- static time_t last_check = 0;
- static int ret = -1;
- time_t now = time(0);
-
- if (ret != -1 || (now - last_check) < 5)
- return ret;
- last_check = now;
- ret = (fs_proc_check("ext4dev") || check_for_modules("ext4dev"));
- return ret;
-}
-/*
- * reads superblock and returns:
- * fc = feature_compat
- * fi = feature_incompat
- * frc = feature_ro_compat
- */
-static struct ext2_super_block *ext_get_super(
- blkid_probe pr, uint32_t *fc, uint32_t *fi, uint32_t *frc)
-{
- struct ext2_super_block *es;
-
- es = (struct ext2_super_block *)
- blkid_probe_get_buffer(pr, EXT_SB_OFF, 0x200);
- if (!es)
- return NULL;
- if (fc)
- *fc = le32_to_cpu(es->s_feature_compat);
- if (fi)
- *fi = le32_to_cpu(es->s_feature_incompat);
- if (frc)
- *frc = le32_to_cpu(es->s_feature_ro_compat);
-
- return es;
-}
-
-static void ext_get_info(blkid_probe pr, int ver, struct ext2_super_block *es)
-{
- //struct blkid_chain *chn = blkid_probe_get_chain(pr);
-
- DBG(DEBUG_PROBE, printf("ext2_sb.compat = %08X:%08X:%08X\n",
- le32_to_cpu(es->s_feature_compat),
- le32_to_cpu(es->s_feature_incompat),
- le32_to_cpu(es->s_feature_ro_compat)));
-
- if (strlen(es->s_volume_name))
- blkid_probe_set_label(pr, (unsigned char *) es->s_volume_name,
- sizeof(es->s_volume_name));
- blkid_probe_set_uuid(pr, es->s_uuid);
-
- if (le32_to_cpu(es->s_feature_compat) & EXT3_FEATURE_COMPAT_HAS_JOURNAL)
- blkid_probe_set_uuid_as(pr, es->s_journal_uuid, "EXT_JOURNAL");
-
-/* if (ver != 2 && (chn->flags & BLKID_SUBLKS_SECTYPE) &&
- ((le32_to_cpu(es->s_feature_incompat) & EXT2_FEATURE_INCOMPAT_UNSUPPORTED) == 0))
- blkid_probe_set_value(pr, "SEC_TYPE",
- (unsigned char *) "ext2",
- sizeof("ext2"));*/
-
- blkid_probe_sprintf_version(pr, "%u.%u",
- le32_to_cpu(es->s_rev_level),
- le16_to_cpu(es->s_minor_rev_level));
-}
-
-
-static int probe_jbd(blkid_probe pr,
- const struct blkid_idmag *mag __attribute__((__unused__)))
-{
- struct ext2_super_block *es;
- uint32_t fi;
-
- es = ext_get_super(pr, NULL, &fi, NULL);
- if (!es)
- return -BLKID_ERR_PARAM;
- if (!(fi & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV))
- return -BLKID_ERR_PARAM;
-
- ext_get_info(pr, 2, es);
- return 0;
-}
-
-static int probe_ext2(blkid_probe pr,
- const struct blkid_idmag *mag __attribute__((__unused__)))
-{
- struct ext2_super_block *es;
- uint32_t fc, frc, fi;
-
- es = ext_get_super(pr, &fc, &fi, &frc);
- if (!es)
- return -BLKID_ERR_PARAM;
-
- /* Distinguish between ext3 and ext2 */
- if (fc & EXT3_FEATURE_COMPAT_HAS_JOURNAL)
- return -BLKID_ERR_PARAM;
-
- /* Any features which ext2 doesn't understand */
- if ((frc & EXT2_FEATURE_RO_COMPAT_UNSUPPORTED) ||
- (fi & EXT2_FEATURE_INCOMPAT_UNSUPPORTED))
- return -BLKID_ERR_PARAM;
-
- /*
- * If ext2 is not present, but ext4 or ext4dev are, then
- * disclaim we are ext2
- */
- if (!system_supports_ext2() &&
- (system_supports_ext4() || system_supports_ext4dev()) &&
- get_linux_version() >= EXT4_SUPPORTS_EXT2)
- return -BLKID_ERR_PARAM;
-
- ext_get_info(pr, 2, es);
- return 0;
-}
-
-static int probe_ext3(blkid_probe pr,
- const struct blkid_idmag *mag __attribute__((__unused__)))
-{
- struct ext2_super_block *es;
- uint32_t fc, frc, fi;
-
- es = ext_get_super(pr, &fc, &fi, &frc);
- if (!es)
- return -BLKID_ERR_PARAM;
-
- /* ext3 requires journal */
- if (!(fc & EXT3_FEATURE_COMPAT_HAS_JOURNAL))
- return -BLKID_ERR_PARAM;
-
- /* Any features which ext3 doesn't understand */
- if ((frc & EXT3_FEATURE_RO_COMPAT_UNSUPPORTED) ||
- (fi & EXT3_FEATURE_INCOMPAT_UNSUPPORTED))
- return -BLKID_ERR_PARAM;
-
- ext_get_info(pr, 3, es);
- return 0;
-}
-
-
-static int probe_ext4dev(blkid_probe pr,
- const struct blkid_idmag *mag __attribute__((__unused__)))
-{
- struct ext2_super_block *es;
- uint32_t fc, frc, fi;
-
- es = ext_get_super(pr, &fc, &fi, &frc);
- if (!es)
- return -BLKID_ERR_PARAM;
-
- /* Distinguish from jbd */
- if (fi & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)
- return -BLKID_ERR_PARAM;
-
- /*
- * If the filesystem does not have a journal and ext2 and ext4
- * is not present, then force this to be detected as an
- * ext4dev filesystem.
- */
- if (!(fc & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
- !system_supports_ext2() && !system_supports_ext4() &&
- system_supports_ext4dev() &&
- get_linux_version() >= EXT4_SUPPORTS_EXT2)
- goto force_ext4dev;
-
- /*
- * If the filesystem is marked as OK for use by in-development
- * filesystem code, but ext4dev is not supported, and ext4 is,
- * then don't call ourselves ext4dev, since we should be
- * detected as ext4 in that case.
- *
- * If the filesystem is marked as in use by production
- * filesystem, then it can only be used by ext4 and NOT by
- * ext4dev, so always disclaim we are ext4dev in that case.
- */
- if (le32_to_cpu(es->s_flags) & EXT2_FLAGS_TEST_FILESYS) {
- if (!system_supports_ext4dev() && system_supports_ext4())
- return -BLKID_ERR_PARAM;
- } else
- return -BLKID_ERR_PARAM;
-
-force_ext4dev:
- ext_get_info(pr, 4, es);
- return 0;
-}
-
-static int probe_ext4(blkid_probe pr,
- const struct blkid_idmag *mag __attribute__((__unused__)))
-{
- struct ext2_super_block *es;
- uint32_t fc, frc, fi;
-
- es = ext_get_super(pr, &fc, &fi, &frc);
- if (!es)
- return -1;
-
- /* Distinguish from jbd */
- if (fi & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)
- return -BLKID_ERR_PARAM;
-
- /*
- * If the filesystem does not have a journal and ext2 is not
- * present, then force this to be detected as an ext2
- * filesystem.
- */
- if (!(fc & EXT3_FEATURE_COMPAT_HAS_JOURNAL) &&
- !system_supports_ext2() && system_supports_ext4() &&
- get_linux_version() >= EXT4_SUPPORTS_EXT2)
- goto force_ext4;
-
- /* Ext4 has at least one feature which ext3 doesn't understand */
- if (!(frc & EXT3_FEATURE_RO_COMPAT_UNSUPPORTED) &&
- !(fi & EXT3_FEATURE_INCOMPAT_UNSUPPORTED))
- return -BLKID_ERR_PARAM;
-
-force_ext4:
- /*
- * If the filesystem is a OK for use by in-development
- * filesystem code, and ext4dev is supported or ext4 is not
- * supported, then don't call ourselves ext4, so we can redo
- * the detection and mark the filesystem as ext4dev.
- *
- * If the filesystem is marked as in use by production
- * filesystem, then it can only be used by ext4 and NOT by
- * ext4dev.
- */
- if (le32_to_cpu(es->s_flags) & EXT2_FLAGS_TEST_FILESYS) {
- if (system_supports_ext4dev() || !system_supports_ext4())
- return -BLKID_ERR_PARAM;
- }
-
- ext_get_info(pr, 4, es);
- return 0;
-}
-
-#define BLKID_EXT_MAGICS \
- { \
- { \
- .magic = EXT_SB_MAGIC, \
- .len = sizeof(EXT_SB_MAGIC) - 1, \
- .kboff = EXT_SB_KBOFF, \
- .sboff = EXT_MAG_OFF \
- }, \
- { NULL } \
- }
-
-const struct blkid_idinfo jbd_idinfo =
-{
- .name = "jbd",
- .usage = BLKID_USAGE_OTHER,
- .probefunc = probe_jbd,
- .magics = BLKID_EXT_MAGICS
-};
-
-const struct blkid_idinfo ext2_idinfo =
-{
- .name = "ext2",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_ext2,
- .magics = BLKID_EXT_MAGICS
-};
-
-const struct blkid_idinfo ext3_idinfo =
-{
- .name = "ext3",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_ext3,
- .magics = BLKID_EXT_MAGICS
-};
-
-const struct blkid_idinfo ext4_idinfo =
-{
- .name = "ext4",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_ext4,
- .magics = BLKID_EXT_MAGICS
-};
-
-const struct blkid_idinfo ext4dev_idinfo =
-{
- .name = "ext4dev",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_ext4dev,
- .magics = BLKID_EXT_MAGICS
-};
-
+++ /dev/null
-/*
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * Inspired by libvolume_id by
- * Kay Sievers <kay.sievers@vrfy.org>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "bitops.h" /* swab16() */
-#include "superblocks.h"
-
-static int probe_jffs2(blkid_probe pr, const struct blkid_idmag *mag)
-{
- return 0;
-}
-
-const struct blkid_idinfo jffs2_idinfo =
-{
- .name = "jffs2",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_jffs2,
- .magics =
- {
- { .magic = "\x19\x85", .len = 2 },
- { .magic = "\x85\x19", .len = 2 },
- { NULL }
- }
-};
+++ /dev/null
-#include <stdio.h>
-#include <sys/utsname.h>
-
-#include "superblocks.h"
-#include "linux_version.h"
-
-#if 0
-#define DEBUG(fmt, ...) printf(fmt, __VA_ARGS__)
-#else
-#define DEBUG(fmt, ...)
-#endif
-
-int blkid_debug_mask = 0;
-
-static unsigned char *probe_buffer;
-static unsigned int probe_buffer_size = 0;
-
-int get_linux_version (void)
-{
- static int kver = -1;
- struct utsname uts;
- int major = 0;
- int minor = 0;
- int teeny = 0;
- int n;
-
- if (kver != -1)
- return kver;
- if (uname (&uts))
- return kver = 0;
-
- n = sscanf(uts.release, "%d.%d.%d", &major, &minor, &teeny);
- if (n < 1 || n > 3)
- return kver = 0;
-
- return kver = KERNEL_VERSION(major, minor, teeny);
-}
-
-int blkid_probe_is_tiny(blkid_probe pr)
-{
- /* never true ? */
- return 0;
-}
-
-int blkid_probe_set_value(blkid_probe pr, const char *name,
- unsigned char *data, size_t len)
-{
- /* empty stub */
- return 0;
-}
-
-int blkid_probe_set_version(blkid_probe pr, const char *version)
-{
- int len = strlen(version);
- if (len > (sizeof(pr->version) - 1)) {
- fprintf(stderr, "version buffer too small %d\n", len);
- return -1;
- }
-
- strncpy(pr->version, version, sizeof(pr->version));
-
- return 0;
-}
-
-int blkid_probe_sprintf_version(blkid_probe pr, const char *fmt, ...)
-{
- va_list ap;
- int n;
-
- va_start(ap, fmt);
- n = vsnprintf(pr->version, sizeof(pr->version), fmt, ap);
- va_end(ap);
-
- if (n >= sizeof(pr->version))
- fprintf(stderr, "version buffer too small %d\n", n);
-
- return 0;
-}
-
-unsigned char *blkid_probe_get_buffer(blkid_probe pr,
- blkid_loff_t off, blkid_loff_t len)
-{
- int ret;
- unsigned char *buf;
-
- if (len > probe_buffer_size) {
- buf = realloc(probe_buffer, len);
-
- if (!buf) {
- fprintf(stderr, "failed to allocate %d byte buffer\n",
- (int)len);
-
- return NULL;
- }
-
- probe_buffer = buf;
- probe_buffer_size = len;
- }
-
- memset(probe_buffer, 0, probe_buffer_size);
-
- lseek(pr->fd, off, SEEK_SET);
- ret = read(pr->fd, probe_buffer, len);
-
- if (ret != len)
- fprintf(stderr, "faile to read blkid\n");
-
- return probe_buffer;
-}
-
-int blkid_probe_set_label(blkid_probe pr, unsigned char *label, size_t len)
-{
- if (len > (sizeof(pr->label) - 1)) {
- fprintf(stderr, "label buffer too small %d > %d\n",
- (int) len, (int) sizeof(pr->label) - 1);
- return -1;
- }
- memcpy(pr->label, label, len + 1);
-
- return 0;
-}
-
-int blkid_probe_set_uuid_as(blkid_probe pr, unsigned char *uuid, const char *name)
-{
- short unsigned int*u = (short unsigned int*) uuid;
-
- if (u[0])
- sprintf(pr->uuid,
- "%04x%04x-%04x-%04x-%04x-%04x%04x%04x",
- be16_to_cpu(u[0]), be16_to_cpu(u[1]), be16_to_cpu(u[2]), be16_to_cpu(u[3]),
- be16_to_cpu(u[4]), be16_to_cpu(u[5]), be16_to_cpu(u[6]), be16_to_cpu(u[7]));
- if (name)
- strncpy(pr->name, name, sizeof(pr->name));
-
- return 0;
-}
-
-int blkid_probe_set_uuid(blkid_probe pr, unsigned char *uuid)
-{
- return blkid_probe_set_uuid_as(pr, uuid, NULL);
-}
-
-int blkid_probe_sprintf_uuid(blkid_probe pr, unsigned char *uuid,
- size_t len, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vsnprintf(pr->uuid, sizeof(pr->uuid), fmt, ap);
- va_end(ap);
-
- return 0;
-}
-
-static const struct blkid_idinfo *idinfos[] =
-{
- &vfat_idinfo,
- &swsuspend_idinfo,
- &swap_idinfo,
- &ext4dev_idinfo,
- &ext4_idinfo,
- &ext3_idinfo,
- &ext2_idinfo,
- &jbd_idinfo,
- &squashfs_idinfo,
- &jffs2_idinfo,
-};
-
-int probe_block(char *block, struct blkid_struct_probe *pr)
-{
- struct stat s;
- int i;
-
- if (stat(block, &s) || (!S_ISBLK(s.st_mode) && !S_ISREG(s.st_mode)))
- return -1;
-
- pr->err = -1;
- pr->fd = open(block, O_RDONLY);
- if (!pr->fd)
- return -1;
-
- for (i = 0; i < ARRAY_SIZE(idinfos); i++) {
- /* loop over all magic handlers */
- const struct blkid_idmag *mag;
-
- /* loop over all probe handlers */
- DEBUG("scanning %s\n", idinfos[i]->name);
-
- mag = &idinfos[i]->magics[0];
-
- while (mag->magic) {
- int off = (mag->kboff * 1024) + mag->sboff;
- char magic[32] = { 0 };
-
- lseek(pr->fd, off, SEEK_SET);
- read(pr->fd, magic, mag->len);
-
- DEBUG("magic: %s %s %d\n", mag->magic, magic, mag->len);
- if (!memcmp(mag->magic, magic, mag->len))
- break;
- mag++;
- }
-
- if (mag && mag->magic) {
- DEBUG("probing %s\n", idinfos[i]->name);
- pr->err = idinfos[i]->probefunc(pr, mag);
- pr->id = idinfos[i];
- strcpy(pr->dev, block);
- if (!pr->err)
- break;
- }
- }
-
- close(pr->fd);
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <libubox/list.h>
-
-struct blkid_idmag;
-struct blkid_idmag;
-struct blkid_idinfo;
-
-struct blkid_idmag
-{
- const char *magic;
- unsigned int len;
-
- long kboff;
- unsigned int sboff;
-};
-
-
-struct blkid_idinfo;
-
-struct blkid_struct_probe
-{
- const struct blkid_idinfo *id;
- struct list_head list;
-
- int fd;
- int err;
- char dev[32];
- char uuid[64];
- char label[64];
- char name[64];
- char version[64];
-};
-
-struct blkid_idinfo
-{
- const char *name;
- int usage;
- int flags;
- int minsz;
- int (*probefunc)(struct blkid_struct_probe *pr, const struct blkid_idmag *mag);
- struct blkid_idmag magics[];
-};
-
-extern int probe_block(char *block, struct blkid_struct_probe *pr);
-extern int mkblkdev(void);
+++ /dev/null
-#ifndef LINUX_VERSION_H
-#define LINUX_VERSION_H
-
-#ifdef HAVE_LINUX_VERSION_H
-# include <linux/version.h>
-#endif
-
-#ifndef KERNEL_VERSION
-# define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#endif
-
-int get_linux_version(void);
-
-#endif /* LINUX_VERSION_H */
+++ /dev/null
-/*
- * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define _BSD_SOURCE
-
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <dirent.h>
-#include <limits.h>
-#include <fnmatch.h>
-
-#include "libblkid-tiny.h"
-
-#include <syslog.h>
-
-static char buf[PATH_MAX];
-static char buf2[PATH_MAX];
-static unsigned int mode = 0600;
-
-static void make_dev(const char *path, bool block, int major, int minor)
-{
- unsigned int _mode = mode | (block ? S_IFBLK : S_IFCHR);
-
- mknod(path, _mode, makedev(major, minor));
-}
-
-static void find_devs(bool block)
-{
- char *path = block ? "/sys/dev/block" : "/sys/dev/char";
- struct dirent *dp;
- DIR *dir;
-
- dir = opendir(path);
- if (!dir)
- return;
-
- path = buf2 + sprintf(buf2, "%s/", path);
- while ((dp = readdir(dir)) != NULL) {
- char *c;
- int major = 0, minor = 0;
- int len;
-
- if (dp->d_type != DT_LNK)
- continue;
-
- if (sscanf(dp->d_name, "%d:%d", &major, &minor) != 2)
- continue;
-
- strcpy(path, dp->d_name);
- len = readlink(buf2, buf, sizeof(buf));
- if (len <= 0)
- continue;
-
- buf[len] = 0;
-
- c = strrchr(buf, '/');
- if (!c)
- continue;
-
-
- c++;
- make_dev(c, block, major, minor);
- }
- closedir(dir);
-}
-
-int mkblkdev(void)
-{
- if (chdir("/dev"))
- return 1;
-
- mode = 0600;
- find_devs(true);
- chdir("/");
-
- return 0;
-}
+++ /dev/null
-/*
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * Inspired by libvolume_id by
- * Kay Sievers <kay.sievers@vrfy.org>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "bitops.h" /* swab16() */
-#include "superblocks.h"
-
-#include <libubox/md5.h>
-
-struct squashfs_super_block {
- uint32_t s_magic;
- uint32_t inodes;
- uint32_t mkfs_time;
- uint32_t block_size;
- uint32_t fragments;
- uint16_t compression;
- uint16_t block_log;
- uint16_t flags;
- uint16_t no_ids;
- uint16_t s_major;
- uint16_t s_minor;
- uint64_t root_inode;
- uint64_t bytes_used;
- uint64_t id_table_start;
- uint64_t xattr_id_table_start;
- uint64_t inode_table_start;
- uint64_t directory_table_start;
- uint64_t fragment_table_start;
- uint64_t lookup_table_start;
-} __attribute__((packed));
-
-static int probe_squashfs(blkid_probe pr, const struct blkid_idmag *mag)
-{
- md5_ctx_t ctx = { 0 };
- uint32_t md5[4];
- struct squashfs_super_block *sq;
-
- sq = blkid_probe_get_sb(pr, mag, struct squashfs_super_block);
- if (!sq)
- return -1;
-
- if (strcmp(mag->magic, "sqsh") == 0 ||
- strcmp(mag->magic, "qshs") == 0)
- blkid_probe_sprintf_version(pr, "%u.%u",
- sq->s_major,
- sq->s_minor);
- else
- blkid_probe_sprintf_version(pr, "%u.%u",
- swab16(sq->s_major),
- swab16(sq->s_minor));
- md5_begin(&ctx);
- md5_hash(sq, sizeof(*sq), &ctx);
- md5_end(&md5, &ctx);
- blkid_probe_sprintf_uuid(pr, NULL, 4, "%08x-%08x-%08x-%08x",
- md5[3], md5[2], md5[1], md5[0]);
- return 0;
-}
-
-const struct blkid_idinfo squashfs_idinfo =
-{
- .name = "squashfs",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_squashfs,
- .magics =
- {
- { .magic = "sqsh", .len = 4 },
- { .magic = "hsqs", .len = 4 }, /* swap */
-
- /* LZMA version */
- { .magic = "qshs", .len = 4 },
- { .magic = "shsq", .len = 4 }, /* swap */
- { NULL }
- }
-};
-
-
+++ /dev/null
-/*
- * Copyright (C) 2008-2009 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#ifndef _BLKID_SUPERBLOCKS_H
-#define _BLKID_SUPERBLOCKS_H
-
-#include "blkidP.h"
-
-extern const struct blkid_idinfo cramfs_idinfo;
-extern const struct blkid_idinfo swap_idinfo;
-extern const struct blkid_idinfo swsuspend_idinfo;
-extern const struct blkid_idinfo adraid_idinfo;
-extern const struct blkid_idinfo ddfraid_idinfo;
-extern const struct blkid_idinfo iswraid_idinfo;
-extern const struct blkid_idinfo jmraid_idinfo;
-extern const struct blkid_idinfo lsiraid_idinfo;
-extern const struct blkid_idinfo nvraid_idinfo;
-extern const struct blkid_idinfo pdcraid_idinfo;
-extern const struct blkid_idinfo silraid_idinfo;
-extern const struct blkid_idinfo viaraid_idinfo;
-extern const struct blkid_idinfo linuxraid_idinfo;
-extern const struct blkid_idinfo ext4dev_idinfo;
-extern const struct blkid_idinfo ext4_idinfo;
-extern const struct blkid_idinfo ext3_idinfo;
-extern const struct blkid_idinfo ext2_idinfo;
-extern const struct blkid_idinfo jbd_idinfo;
-extern const struct blkid_idinfo jfs_idinfo;
-extern const struct blkid_idinfo xfs_idinfo;
-extern const struct blkid_idinfo gfs_idinfo;
-extern const struct blkid_idinfo gfs2_idinfo;
-extern const struct blkid_idinfo romfs_idinfo;
-extern const struct blkid_idinfo ocfs_idinfo;
-extern const struct blkid_idinfo ocfs2_idinfo;
-extern const struct blkid_idinfo oracleasm_idinfo;
-extern const struct blkid_idinfo reiser_idinfo;
-extern const struct blkid_idinfo reiser4_idinfo;
-extern const struct blkid_idinfo hfs_idinfo;
-extern const struct blkid_idinfo hfsplus_idinfo;
-extern const struct blkid_idinfo ntfs_idinfo;
-extern const struct blkid_idinfo iso9660_idinfo;
-extern const struct blkid_idinfo udf_idinfo;
-extern const struct blkid_idinfo vxfs_idinfo;
-extern const struct blkid_idinfo minix_idinfo;
-extern const struct blkid_idinfo vfat_idinfo;
-extern const struct blkid_idinfo ufs_idinfo;
-extern const struct blkid_idinfo hpfs_idinfo;
-extern const struct blkid_idinfo lvm2_idinfo;
-extern const struct blkid_idinfo lvm1_idinfo;
-extern const struct blkid_idinfo snapcow_idinfo;
-extern const struct blkid_idinfo luks_idinfo;
-extern const struct blkid_idinfo highpoint37x_idinfo;
-extern const struct blkid_idinfo highpoint45x_idinfo;
-extern const struct blkid_idinfo squashfs_idinfo;
-extern const struct blkid_idinfo netware_idinfo;
-extern const struct blkid_idinfo sysv_idinfo;
-extern const struct blkid_idinfo xenix_idinfo;
-extern const struct blkid_idinfo btrfs_idinfo;
-extern const struct blkid_idinfo ubifs_idinfo;
-extern const struct blkid_idinfo zfs_idinfo;
-extern const struct blkid_idinfo bfs_idinfo;
-extern const struct blkid_idinfo vmfs_volume_idinfo;
-extern const struct blkid_idinfo vmfs_fs_idinfo;
-extern const struct blkid_idinfo drbd_idinfo;
-extern const struct blkid_idinfo drbdproxy_datalog_idinfo;
-extern const struct blkid_idinfo befs_idinfo;
-extern const struct blkid_idinfo nilfs2_idinfo;
-extern const struct blkid_idinfo exfat_idinfo;
-extern const struct blkid_idinfo jffs2_idinfo;
-
-/*
- * superblock functions
- */
-extern int blkid_probe_set_version(blkid_probe pr, const char *version);
-extern int blkid_probe_sprintf_version(blkid_probe pr, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-
-extern int blkid_probe_set_label(blkid_probe pr, unsigned char *label, size_t len);
-extern int blkid_probe_set_utf8label(blkid_probe pr, unsigned char *label,
- size_t len, int enc);
-extern int blkid_probe_sprintf_uuid(blkid_probe pr, unsigned char *uuid,
- size_t len, const char *fmt, ...)
- __attribute__ ((format (printf, 4, 5)));
-extern int blkid_probe_strncpy_uuid(blkid_probe pr, unsigned char *str, size_t len);
-
-extern int blkid_probe_set_uuid(blkid_probe pr, unsigned char *uuid);
-extern int blkid_probe_set_uuid_as(blkid_probe pr, unsigned char *uuid, const char *name);
-
-
-#endif /* _BLKID_SUPERBLOCKS_H */
+++ /dev/null
-/*
- * Copyright (C) 1999 by Andries Brouwer
- * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
- * Copyright (C) 2001 by Andreas Dilger
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-#include <stdint.h>
-
-#include "superblocks.h"
-
-/* linux-2.6/include/linux/swap.h */
-struct swap_header_v1_2 {
- /* char bootbits[1024]; */ /* Space for disklabel etc. */
- uint32_t version;
- uint32_t lastpage;
- uint32_t nr_badpages;
- unsigned char uuid[16];
- unsigned char volume[16];
- uint32_t padding[117];
- uint32_t badpages[1];
-} __attribute__((packed));
-
-#define PAGESIZE_MIN 0xff6 /* 4086 (arm, i386, ...) */
-#define PAGESIZE_MAX 0xfff6 /* 65526 (ia64) */
-
-#define TOI_MAGIC_STRING "\xed\xc3\x02\xe9\x98\x56\xe5\x0c"
-#define TOI_MAGIC_STRLEN (sizeof(TOI_MAGIC_STRING) - 1)
-
-static int swap_set_info(blkid_probe pr, const char *version)
-{
- struct swap_header_v1_2 *hdr;
-
- /* Swap header always located at offset of 1024 bytes */
- hdr = (struct swap_header_v1_2 *) blkid_probe_get_buffer(pr, 1024,
- sizeof(struct swap_header_v1_2));
- if (!hdr)
- return -1;
-
- /* SWAPSPACE2 - check for wrong version or zeroed pagecount */
- if (strcmp(version, "2") == 0 &&
- ((hdr->version != 1 && swab32(hdr->version) != 1) || hdr->lastpage == 0))
- return -1;
-
- /* arbitrary sanity check.. is there any garbage down there? */
- if (hdr->padding[32] == 0 && hdr->padding[33] == 0) {
- if (hdr->volume[0] && blkid_probe_set_label(pr, hdr->volume,
- sizeof(hdr->volume)) < 0)
- return -1;
- if (blkid_probe_set_uuid(pr, hdr->uuid) < 0)
- return -1;
- }
-
- blkid_probe_set_version(pr, version);
- return 0;
-}
-
-static int probe_swap(blkid_probe pr, const struct blkid_idmag *mag)
-{
- unsigned char *buf;
-
- if (!mag)
- return -1;
-
- /* TuxOnIce keeps valid swap header at the end of the 1st page */
- buf = blkid_probe_get_buffer(pr, 0, TOI_MAGIC_STRLEN);
- if (!buf)
- return -1;
-
- if (memcmp(buf, TOI_MAGIC_STRING, TOI_MAGIC_STRLEN) == 0)
- return 1; /* Ignore swap signature, it's TuxOnIce */
-
- if (!memcmp(mag->magic, "SWAP-SPACE", mag->len)) {
- /* swap v0 doesn't support LABEL or UUID */
- blkid_probe_set_version(pr, "1");
- return 0;
-
- } else if (!memcmp(mag->magic, "SWAPSPACE2", mag->len))
- return swap_set_info(pr, "2");
-
- return -1;
-}
-
-static int probe_swsuspend(blkid_probe pr, const struct blkid_idmag *mag)
-{
- if (!mag)
- return -1;
- if (!memcmp(mag->magic, "S1SUSPEND", mag->len))
- return swap_set_info(pr, "s1suspend");
- if (!memcmp(mag->magic, "S2SUSPEND", mag->len))
- return swap_set_info(pr, "s2suspend");
- if (!memcmp(mag->magic, "ULSUSPEND", mag->len))
- return swap_set_info(pr, "ulsuspend");
- if (!memcmp(mag->magic, TOI_MAGIC_STRING, mag->len))
- return swap_set_info(pr, "tuxonice");
- if (!memcmp(mag->magic, "LINHIB0001", mag->len))
- return swap_set_info(pr, "linhib0001");
-
- return -1; /* no signature detected */
-}
-
-const struct blkid_idinfo swap_idinfo =
-{
- .name = "swap",
- .usage = BLKID_USAGE_OTHER,
- .probefunc = probe_swap,
- .minsz = 10 * 4096, /* 10 pages */
- .magics =
- {
- { "SWAP-SPACE", 10, 0, 0xff6 },
- { "SWAPSPACE2", 10, 0, 0xff6 },
- { "SWAP-SPACE", 10, 0, 0x1ff6 },
- { "SWAPSPACE2", 10, 0, 0x1ff6 },
- { "SWAP-SPACE", 10, 0, 0x3ff6 },
- { "SWAPSPACE2", 10, 0, 0x3ff6 },
- { "SWAP-SPACE", 10, 0, 0x7ff6 },
- { "SWAPSPACE2", 10, 0, 0x7ff6 },
- { "SWAP-SPACE", 10, 0, 0xfff6 },
- { "SWAPSPACE2", 10, 0, 0xfff6 },
- { NULL }
- }
-};
-
-
-const struct blkid_idinfo swsuspend_idinfo =
-{
- .name = "swsuspend",
- .usage = BLKID_USAGE_OTHER,
- .probefunc = probe_swsuspend,
- .minsz = 10 * 4096, /* 10 pages */
- .magics =
- {
- { TOI_MAGIC_STRING, TOI_MAGIC_STRLEN, 0, 0 },
- { "S1SUSPEND", 9, 0, 0xff6 },
- { "S2SUSPEND", 9, 0, 0xff6 },
- { "ULSUSPEND", 9, 0, 0xff6 },
- { "LINHIB0001",10,0, 0xff6 },
-
- { "S1SUSPEND", 9, 0, 0x1ff6 },
- { "S2SUSPEND", 9, 0, 0x1ff6 },
- { "ULSUSPEND", 9, 0, 0x1ff6 },
- { "LINHIB0001",10,0, 0x1ff6 },
-
- { "S1SUSPEND", 9, 0, 0x3ff6 },
- { "S2SUSPEND", 9, 0, 0x3ff6 },
- { "ULSUSPEND", 9, 0, 0x3ff6 },
- { "LINHIB0001",10,0, 0x3ff6 },
-
- { "S1SUSPEND", 9, 0, 0x7ff6 },
- { "S2SUSPEND", 9, 0, 0x7ff6 },
- { "ULSUSPEND", 9, 0, 0x7ff6 },
- { "LINHIB0001",10,0, 0x7ff6 },
-
- { "S1SUSPEND", 9, 0, 0xfff6 },
- { "S2SUSPEND", 9, 0, 0xfff6 },
- { "ULSUSPEND", 9, 0, 0xfff6 },
- { "LINHIB0001",10,0, 0xfff6 },
-
- { NULL }
- }
-};
-
+++ /dev/null
-/*
- * Copyright (C) 2009 Corentin Chary <corentincj@iksaif.net>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdint.h>
-
-#include "superblocks.h"
-
-/*
- * struct ubifs_ch - common header node.
- * @magic: UBIFS node magic number (%UBIFS_NODE_MAGIC)
- * @crc: CRC-32 checksum of the node header
- * @sqnum: sequence number
- * @len: full node length
- * @node_type: node type
- * @group_type: node group type
- * @padding: reserved for future, zeroes
- *
- * Every UBIFS node starts with this common part. If the node has a key, the
- * key always goes next.
- */
-struct ubifs_ch {
- uint32_t magic;
- uint32_t crc;
- uint64_t sqnum;
- uint32_t len;
- uint8_t node_type;
- uint8_t group_type;
- uint8_t padding[2];
-} __attribute__ ((packed));
-
-/*
- * struct ubifs_sb_node - superblock node.
- * @ch: common header
- * @padding: reserved for future, zeroes
- * @key_hash: type of hash function used in keys
- * @key_fmt: format of the key
- * @flags: file-system flags (%UBIFS_FLG_BIGLPT, etc)
- * @min_io_size: minimal input/output unit size
- * @leb_size: logical eraseblock size in bytes
- * @leb_cnt: count of LEBs used by file-system
- * @max_leb_cnt: maximum count of LEBs used by file-system
- * @max_bud_bytes: maximum amount of data stored in buds
- * @log_lebs: log size in logical eraseblocks
- * @lpt_lebs: number of LEBs used for lprops table
- * @orph_lebs: number of LEBs used for recording orphans
- * @jhead_cnt: count of journal heads
- * @fanout: tree fanout (max. number of links per indexing node)
- * @lsave_cnt: number of LEB numbers in LPT's save table
- * @fmt_version: UBIFS on-flash format version
- * @default_compr: default compression algorithm (%UBIFS_COMPR_LZO, etc)
- * @padding1: reserved for future, zeroes
- * @rp_uid: reserve pool UID
- * @rp_gid: reserve pool GID
- * @rp_size: size of the reserved pool in bytes
- * @padding2: reserved for future, zeroes
- * @time_gran: time granularity in nanoseconds
- * @uuid: UUID generated when the file system image was created
- * @ro_compat_version: UBIFS R/O compatibility version
- */
-struct ubifs_sb_node {
- struct ubifs_ch ch;
- uint8_t padding[2];
- uint8_t key_hash;
- uint8_t key_fmt;
- uint32_t flags;
- uint32_t min_io_size;
- uint32_t leb_size;
- uint32_t leb_cnt;
- uint32_t max_leb_cnt;
- uint64_t max_bud_bytes;
- uint32_t log_lebs;
- uint32_t lpt_lebs;
- uint32_t orph_lebs;
- uint32_t jhead_cnt;
- uint32_t fanout;
- uint32_t lsave_cnt;
- uint32_t fmt_version;
- uint16_t default_compr;
- uint8_t padding1[2];
- uint32_t rp_uid;
- uint32_t rp_gid;
- uint64_t rp_size;
- uint32_t time_gran;
- uint8_t uuid[16];
- uint32_t ro_compat_version;
- uint8_t padding2[3968];
-} __attribute__ ((packed));
-
-static int probe_ubifs(blkid_probe pr, const struct blkid_idmag *mag)
-{
- struct ubifs_sb_node *sb;
-
- sb = blkid_probe_get_sb(pr, mag, struct ubifs_sb_node);
- if (!sb)
- return -1;
-
- blkid_probe_set_uuid(pr, sb->uuid);
- blkid_probe_sprintf_version(pr, "w%dr%d",
- sb->fmt_version, sb->ro_compat_version);
- return 0;
-}
-
-const struct blkid_idinfo ubifs_idinfo =
-{
- .name = "ubifs",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_ubifs,
- .magics =
- {
- { .magic = "\x31\x18\x10\x06", .len = 4 },
- { NULL }
- }
-};
+++ /dev/null
-/*
- * Copyright (C) 1999 by Andries Brouwer
- * Copyright (C) 1999, 2000, 2003 by Theodore Ts'o
- * Copyright (C) 2001 by Andreas Dilger
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <ctype.h>
-#include <stdint.h>
-
-#include "superblocks.h"
-
-/* Yucky misaligned values */
-struct vfat_super_block {
-/* 00*/ unsigned char vs_ignored[3];
-/* 03*/ unsigned char vs_sysid[8];
-/* 0b*/ unsigned char vs_sector_size[2];
-/* 0d*/ uint8_t vs_cluster_size;
-/* 0e*/ uint16_t vs_reserved;
-/* 10*/ uint8_t vs_fats;
-/* 11*/ unsigned char vs_dir_entries[2];
-/* 13*/ unsigned char vs_sectors[2];
-/* 15*/ unsigned char vs_media;
-/* 16*/ uint16_t vs_fat_length;
-/* 18*/ uint16_t vs_secs_track;
-/* 1a*/ uint16_t vs_heads;
-/* 1c*/ uint32_t vs_hidden;
-/* 20*/ uint32_t vs_total_sect;
-/* 24*/ uint32_t vs_fat32_length;
-/* 28*/ uint16_t vs_flags;
-/* 2a*/ uint8_t vs_version[2];
-/* 2c*/ uint32_t vs_root_cluster;
-/* 30*/ uint16_t vs_fsinfo_sector;
-/* 32*/ uint16_t vs_backup_boot;
-/* 34*/ uint16_t vs_reserved2[6];
-/* 40*/ unsigned char vs_unknown[3];
-/* 43*/ unsigned char vs_serno[4];
-/* 47*/ unsigned char vs_label[11];
-/* 52*/ unsigned char vs_magic[8];
-/* 5a*/ unsigned char vs_dummy2[0x1fe - 0x5a];
-/*1fe*/ unsigned char vs_pmagic[2];
-} __attribute__((packed));
-
-/* Yucky misaligned values */
-struct msdos_super_block {
-/* 00*/ unsigned char ms_ignored[3];
-/* 03*/ unsigned char ms_sysid[8];
-/* 0b*/ unsigned char ms_sector_size[2];
-/* 0d*/ uint8_t ms_cluster_size;
-/* 0e*/ uint16_t ms_reserved;
-/* 10*/ uint8_t ms_fats;
-/* 11*/ unsigned char ms_dir_entries[2];
-/* 13*/ unsigned char ms_sectors[2]; /* =0 iff V3 or later */
-/* 15*/ unsigned char ms_media;
-/* 16*/ uint16_t ms_fat_length; /* Sectors per FAT */
-/* 18*/ uint16_t ms_secs_track;
-/* 1a*/ uint16_t ms_heads;
-/* 1c*/ uint32_t ms_hidden;
-/* V3 BPB */
-/* 20*/ uint32_t ms_total_sect; /* iff ms_sectors == 0 */
-/* V4 BPB */
-/* 24*/ unsigned char ms_unknown[3]; /* Phys drive no., resvd, V4 sig (0x29) */
-/* 27*/ unsigned char ms_serno[4];
-/* 2b*/ unsigned char ms_label[11];
-/* 36*/ unsigned char ms_magic[8];
-/* 3e*/ unsigned char ms_dummy2[0x1fe - 0x3e];
-/*1fe*/ unsigned char ms_pmagic[2];
-} __attribute__((packed));
-
-struct vfat_dir_entry {
- uint8_t name[11];
- uint8_t attr;
- uint16_t time_creat;
- uint16_t date_creat;
- uint16_t time_acc;
- uint16_t date_acc;
- uint16_t cluster_high;
- uint16_t time_write;
- uint16_t date_write;
- uint16_t cluster_low;
- uint32_t size;
-} __attribute__((packed));
-
-struct fat32_fsinfo {
- uint8_t signature1[4];
- uint32_t reserved1[120];
- uint8_t signature2[4];
- uint32_t free_clusters;
- uint32_t next_cluster;
- uint32_t reserved2[4];
-} __attribute__((packed));
-
-/* maximum number of clusters */
-#define FAT12_MAX 0xFF4
-#define FAT16_MAX 0xFFF4
-#define FAT32_MAX 0x0FFFFFF6
-
-#define FAT_ATTR_VOLUME_ID 0x08
-#define FAT_ATTR_DIR 0x10
-#define FAT_ATTR_LONG_NAME 0x0f
-#define FAT_ATTR_MASK 0x3f
-#define FAT_ENTRY_FREE 0xe5
-
-static const char *no_name = "NO NAME ";
-
-#define unaligned_le16(x) \
- (((unsigned char *) x)[0] + (((unsigned char *) x)[1] << 8))
-
-/*
- * Look for LABEL (name) in the FAT root directory.
- */
-static unsigned char *search_fat_label(blkid_probe pr,
- uint64_t offset, uint32_t entries)
-{
- struct vfat_dir_entry *ent, *dir = NULL;
- uint32_t i;
-
- DBG(DEBUG_LOWPROBE,
- printf("\tlook for label in root-dir "
- "(entries: %d, offset: %jd)\n", entries, offset));
-
- if (!blkid_probe_is_tiny(pr)) {
- /* large disk, read whole root directory */
- dir = (struct vfat_dir_entry *)
- blkid_probe_get_buffer(pr,
- offset,
- (blkid_loff_t) entries *
- sizeof(struct vfat_dir_entry));
- if (!dir)
- return NULL;
- }
-
- for (i = 0; i < entries; i++) {
- /*
- * The root directory could be relatively large (4-16kB).
- * Fortunately, the LABEL is usually the first entry in the
- * directory. On tiny disks we call read() per entry.
- */
- if (!dir)
- ent = (struct vfat_dir_entry *)
- blkid_probe_get_buffer(pr,
- (blkid_loff_t) offset + (i *
- sizeof(struct vfat_dir_entry)),
- sizeof(struct vfat_dir_entry));
- else
- ent = &dir[i];
-
- if (!ent || ent->name[0] == 0x00)
- break;
-
- if ((ent->name[0] == FAT_ENTRY_FREE) ||
- (ent->cluster_high != 0 || ent->cluster_low != 0) ||
- ((ent->attr & FAT_ATTR_MASK) == FAT_ATTR_LONG_NAME))
- continue;
-
- if ((ent->attr & (FAT_ATTR_VOLUME_ID | FAT_ATTR_DIR)) ==
- FAT_ATTR_VOLUME_ID) {
- DBG(DEBUG_LOWPROBE,
- printf("\tfound fs LABEL at entry %d\n", i));
- return ent->name;
- }
- }
- return NULL;
-}
-
-static int fat_valid_superblock(const struct blkid_idmag *mag,
- struct msdos_super_block *ms,
- struct vfat_super_block *vs,
- uint32_t *cluster_count, uint32_t *fat_size)
-{
- uint16_t sector_size, dir_entries, reserved;
- uint32_t sect_count, __fat_size, dir_size, __cluster_count, fat_length;
- uint32_t max_count;
-
- /* extra check for FATs without magic strings */
- if (mag->len <= 2) {
- /* Old floppies have a valid MBR signature */
- if (ms->ms_pmagic[0] != 0x55 || ms->ms_pmagic[1] != 0xAA)
- return 0;
-
- /*
- * OS/2 and apparently DFSee will place a FAT12/16-like
- * pseudo-superblock in the first 512 bytes of non-FAT
- * filesystems --- at least JFS and HPFS, and possibly others.
- * So we explicitly check for those filesystems at the
- * FAT12/16 filesystem magic field identifier, and if they are
- * present, we rule this out as a FAT filesystem, despite the
- * FAT-like pseudo-header.
- */
- if ((memcmp(ms->ms_magic, "JFS ", 8) == 0) ||
- (memcmp(ms->ms_magic, "HPFS ", 8) == 0))
- return 0;
- }
-
- /* fat counts(Linux kernel expects at least 1 FAT table) */
- if (!ms->ms_fats)
- return 0;
- if (!ms->ms_reserved)
- return 0;
- if (!(0xf8 <= ms->ms_media || ms->ms_media == 0xf0))
- return 0;
- if (!is_power_of_2(ms->ms_cluster_size))
- return 0;
-
- sector_size = unaligned_le16(&ms->ms_sector_size);
- if (!is_power_of_2(sector_size) ||
- sector_size < 512 || sector_size > 4096)
- return 0;
-
- dir_entries = unaligned_le16(&ms->ms_dir_entries);
- reserved = le16_to_cpu(ms->ms_reserved);
- sect_count = unaligned_le16(&ms->ms_sectors);
-
- if (sect_count == 0)
- sect_count = le32_to_cpu(ms->ms_total_sect);
-
- fat_length = le16_to_cpu(ms->ms_fat_length);
- if (fat_length == 0)
- fat_length = le32_to_cpu(vs->vs_fat32_length);
-
- __fat_size = fat_length * ms->ms_fats;
- dir_size = ((dir_entries * sizeof(struct vfat_dir_entry)) +
- (sector_size-1)) / sector_size;
-
- __cluster_count = (sect_count - (reserved + __fat_size + dir_size)) /
- ms->ms_cluster_size;
- if (!ms->ms_fat_length && vs->vs_fat32_length)
- max_count = FAT32_MAX;
- else
- max_count = __cluster_count > FAT12_MAX ? FAT16_MAX : FAT12_MAX;
-
- if (__cluster_count > max_count)
- return 0;
-
- if (fat_size)
- *fat_size = __fat_size;
- if (cluster_count)
- *cluster_count = __cluster_count;
-
- return 1; /* valid */
-}
-
-/*
- * This function is used by MBR partition table parser to avoid
- * misinterpretation of FAT filesystem.
- */
-/*static int blkid_probe_is_vfat(blkid_probe pr)
-{
- struct vfat_super_block *vs;
- struct msdos_super_block *ms;
- const struct blkid_idmag *mag = NULL;
-
- if (blkid_probe_get_idmag(pr, &vfat_idinfo, NULL, &mag) || !mag)
- return 0;
-
- ms = blkid_probe_get_sb(pr, mag, struct msdos_super_block);
- if (!ms)
- return 0;
- vs = blkid_probe_get_sb(pr, mag, struct vfat_super_block);
- if (!vs)
- return 0;
-
- return fat_valid_superblock(mag, ms, vs, NULL, NULL);
-}*/
-static struct vfat_super_block vs;
-static struct msdos_super_block ms;
-
-static int set_label(blkid_probe pr, unsigned char *vol_label)
-{
- unsigned char *c;
-
- for (c = vol_label + 10; c >= vol_label && *c == ' '; c--)
- *c = 0;
-
- if (!*vol_label)
- return 0;
-
- return blkid_probe_set_label(pr, vol_label, 11);
-}
-
-/* FAT label extraction from the root directory taken from Kay
- * Sievers's volume_id library */
-static int probe_vfat(blkid_probe pr, const struct blkid_idmag *mag)
-{
- struct vfat_super_block *_vs;
- struct msdos_super_block *_ms;
- const unsigned char *vol_label = 0;
- unsigned char *vol_serno = NULL, vol_label_buf[11];
- uint16_t sector_size = 0, reserved;
- uint32_t cluster_count, fat_size;
- const char *version = NULL;
-
- _ms = blkid_probe_get_sb(pr, mag, struct msdos_super_block);
- if (!_ms)
- return 0;
- _vs = blkid_probe_get_sb(pr, mag, struct vfat_super_block);
- if (!_vs)
- return 0;
- memcpy(&ms, _ms, sizeof(struct vfat_super_block));
- memcpy(&vs, _vs, sizeof(struct msdos_super_block));
- if (!fat_valid_superblock(mag, &ms, &vs, &cluster_count, &fat_size))
- return 1;
-
- sector_size = unaligned_le16(&ms.ms_sector_size);
- reserved = le16_to_cpu(ms.ms_reserved);
-
- if (ms.ms_fat_length) {
- /* the label may be an attribute in the root directory */
- uint32_t root_start = (reserved + fat_size) * sector_size;
- uint32_t root_dir_entries = unaligned_le16(&vs.vs_dir_entries);
-
- vol_label = search_fat_label(pr, root_start, root_dir_entries);
- if (vol_label) {
- memcpy(vol_label_buf, vol_label, 11);
- vol_label = vol_label_buf;
- }
-
- if (!vol_label || !memcmp(vol_label, no_name, 11))
- vol_label = ms.ms_label;
- vol_serno = ms.ms_serno;
-
- blkid_probe_set_value(pr, "SEC_TYPE", (unsigned char *) "msdos",
- sizeof("msdos"));
-
- if (cluster_count < FAT12_MAX)
- version = "FAT12";
- else if (cluster_count < FAT16_MAX)
- version = "FAT16";
-
- } else if (vs.vs_fat32_length) {
- unsigned char *buf;
- uint16_t fsinfo_sect;
- int maxloop = 100;
-
- /* Search the FAT32 root dir for the label attribute */
- uint32_t buf_size = vs.vs_cluster_size * sector_size;
- uint32_t start_data_sect = reserved + fat_size;
- uint32_t entries = le32_to_cpu(vs.vs_fat32_length) *
- sector_size / sizeof(uint32_t);
- uint32_t next = le32_to_cpu(vs.vs_root_cluster);
-
- while (next && next < entries && --maxloop) {
- uint32_t next_sect_off;
- uint64_t next_off, fat_entry_off;
- int count;
-
- next_sect_off = (next - 2) * le32_to_cpu(vs.vs_cluster_size);
- next_off = (uint64_t)(start_data_sect + next_sect_off) *
- sector_size;
-
- count = buf_size / sizeof(struct vfat_dir_entry);
-
- vol_label = search_fat_label(pr, next_off, count);
- if (vol_label) {
- memcpy(vol_label_buf, vol_label, 11);
- vol_label = vol_label_buf;
- break;
- }
-
- /* get FAT entry */
- fat_entry_off = ((uint64_t) reserved * sector_size) +
- (next * sizeof(uint32_t));
- buf = blkid_probe_get_buffer(pr, fat_entry_off, buf_size);
- if (buf == NULL)
- break;
-
- /* set next cluster */
- next = le32_to_cpu(*((uint32_t *) buf)) & 0x0fffffff;
- }
-
- version = "FAT32";
-
- if (!vol_label || !memcmp(vol_label, no_name, 11))
- vol_label = NULL;
- vol_serno = vs.vs_serno;
-
- /*
- * FAT32 should have a valid signature in the fsinfo block,
- * but also allow all bytes set to '\0', because some volumes
- * do not set the signature at all.
- */
- fsinfo_sect = le16_to_cpu(vs.vs_fsinfo_sector);
- if (fsinfo_sect) {
- struct fat32_fsinfo *fsinfo;
-
- buf = blkid_probe_get_buffer(pr,
- (blkid_loff_t) fsinfo_sect * sector_size,
- sizeof(struct fat32_fsinfo));
- if (buf == NULL)
- return -1;
-
- fsinfo = (struct fat32_fsinfo *) buf;
- if (memcmp(fsinfo->signature1, "\x52\x52\x61\x41", 4) != 0 &&
- memcmp(fsinfo->signature1, "\x52\x52\x64\x41", 4) != 0 &&
- memcmp(fsinfo->signature1, "\x00\x00\x00\x00", 4) != 0)
- return -1;
- if (memcmp(fsinfo->signature2, "\x72\x72\x41\x61", 4) != 0 &&
- memcmp(fsinfo->signature2, "\x00\x00\x00\x00", 4) != 0)
- return -1;
- }
- }
-
- if (vol_label && memcmp(vol_label, no_name, 11))
- set_label(pr, (unsigned char *) vol_label);
-
- /* We can't just print them as %04X, because they are unaligned */
- if (vol_serno)
- blkid_probe_sprintf_uuid(pr, vol_serno, 4, "%02x%02x-%02x%02x",
- vol_serno[3], vol_serno[2], vol_serno[1], vol_serno[0]);
- if (version)
- blkid_probe_set_version(pr, version);
-
- return 0;
-}
-
-
-const struct blkid_idinfo vfat_idinfo =
-{
- .name = "vfat",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_vfat,
- .magics =
- {
- { .magic = "MSWIN", .len = 5, .sboff = 0x52 },
- { .magic = "FAT32 ", .len = 8, .sboff = 0x52 },
- { .magic = "MSDOS", .len = 5, .sboff = 0x36 },
- { .magic = "FAT16 ", .len = 8, .sboff = 0x36 },
- { .magic = "FAT12 ", .len = 8, .sboff = 0x36 },
- { .magic = "FAT ", .len = 8, .sboff = 0x36 },
- { .magic = "\353", .len = 1, },
- { .magic = "\351", .len = 1, },
- { .magic = "\125\252", .len = 2, .sboff = 0x1fe },
- { NULL }
- }
-};
-
+++ /dev/null
-/*
- * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <getopt.h>
-#include <syslog.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <libgen.h>
-#include <glob.h>
-#include <dirent.h>
-
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/mount.h>
-#include <sys/wait.h>
-
-#include <asm/byteorder.h>
-
-#include <mtd/mtd-user.h>
-
-#define DEBUG(level, fmt, ...) do { \
- if (debug >= level) \
- fprintf(stderr, "%s %s(%d): " fmt, argv0, __func__, __LINE__, ## __VA_ARGS__); \
- } while (0)
-
-#define LOG(fmt, ...) do { \
- syslog(LOG_INFO, fmt, ## __VA_ARGS__); \
- fprintf(stderr, "%s: "fmt, argv0, ## __VA_ARGS__); \
- } while (0)
-
-#define ERROR(fmt, ...) do { \
- syslog(LOG_ERR, fmt, ## __VA_ARGS__); \
- fprintf(stderr, "%s: "fmt, argv0, ## __VA_ARGS__); \
- } while (0)
-
-enum {
- FS_NONE,
- FS_JFFS2,
- FS_DEADCODE,
-};
-
-static const char *argv0;
-
-/* this is a raw syscall - man 2 pivot_root */
-extern int pivot_root(const char *new_root, const char *put_old);
-
-static int debug = 0;
-
-static void foreachdir(const char *dir, int (*cb)(const char*))
-{
- char globdir[256];
- glob_t gl;
- int j;
-
- if (dir[strlen(dir) - 1] == '/')
- snprintf(globdir, 256, "%s*", dir);
- else
- snprintf(globdir, 256, "%s/*", dir);
-
- if (!glob(globdir, GLOB_NOESCAPE | GLOB_MARK | GLOB_ONLYDIR, NULL, &gl))
- for (j = 0; j < gl.gl_pathc; j++)
- foreachdir(gl.gl_pathv[j], cb);
-
- cb(dir);
-}
-
-static int find_overlay_mount(char *overlay)
-{
- FILE *fp = fopen("/proc/mounts", "r");
- static char line[256];
- int ret = -1;
-
- if(!fp)
- return ret;
-
- while (ret && fgets(line, sizeof(line), fp))
- if (!strncmp(line, overlay, strlen(overlay)))
- ret = 0;
-
- fclose(fp);
-
- return ret;
-}
-
-static char* find_mount(char *mp)
-{
- FILE *fp = fopen("/proc/mounts", "r");
- static char line[256];
- char *point = NULL;
-
- if(!fp)
- return NULL;
-
- while (fgets(line, sizeof(line), fp)) {
- char *s, *t = strstr(line, " ");
-
- if (!t) {
- fclose(fp);
- return NULL;
- }
- t++;
- s = strstr(t, " ");
- if (!s) {
- fclose(fp);
- return NULL;
- }
- *s = '\0';
-
- if (!strcmp(t, mp)) {
- fclose(fp);
- return t;
- }
- }
-
- fclose(fp);
-
- return point;
-}
-
-static char* find_mount_point(char *block, char *fs)
-{
- FILE *fp = fopen("/proc/mounts", "r");
- static char line[256];
- int len = strlen(block);
- char *point = NULL;
-
- if(!fp)
- return NULL;
-
- while (fgets(line, sizeof(line), fp)) {
- if (!strncmp(line, block, len)) {
- char *p = &line[len + 1];
- char *t = strstr(p, " ");
-
- if (!t) {
- fclose(fp);
- return NULL;
- }
-
- *t = '\0';
- t++;
-
- if (fs && strncmp(t, fs, strlen(fs))) {
- fclose(fp);
- ERROR("block is mounted with wrong fs\n");
- return NULL;
- }
- point = p;
- break;
- }
- }
-
- fclose(fp);
-
- return point;
-}
-
-static char* find_mtd_index(char *name)
-{
- FILE *fp = fopen("/proc/mtd", "r");
- static char line[256];
- char *index = NULL;
-
- if(!fp)
- return index;
-
- while (!index && fgets(line, sizeof(line), fp)) {
- if (strstr(line, name)) {
- char *eol = strstr(line, ":");
-
- if (!eol)
- continue;
-
- *eol = '\0';
- index = &line[3];
- DEBUG(1, "found %s -> index:%s\n", name, index);
- }
- }
-
- fclose(fp);
-
- return index;
-}
-
-static int find_mtd_block(char *name, char *part, int plen)
-{
- char *index = find_mtd_index(name);
-
- if (!index)
- return -1;
-
- snprintf(part, plen, "/dev/mtdblock%s", index);
- DEBUG(1, "found %s -> %s\n", name, part);
-
- return 0;
-}
-
-static int find_mtd_char(char *name, char *part, int plen)
-{
- char *index = find_mtd_index(name);
-
- if (!index)
- return -1;
-
- snprintf(part, plen, "/dev/mtd%s", index);
- DEBUG(1, "found %s -> %s\n", name, part);
-
- return 0;
-}
-
-static int mtd_unlock(char *mtd)
-{
- struct erase_info_user mtdlock;
- struct mtd_info_user mtdinfo;
- int fd = open(mtd, O_RDWR | O_SYNC);
- int ret = -1;
-
- DEBUG(1, "%s\n", mtd);
-
- if (!fd) {
- ERROR("failed to open %s: %s\n", mtd, strerror(errno));
- return -1;
- }
-
- ret = ioctl(fd, MEMGETINFO, &mtdinfo);
- if (ret) {
- ERROR("ioctl(%s, MEMGETINFO) failed: %s\n", mtd, strerror(errno));
- goto err_out;
- }
-
- mtdlock.start = 0;
- mtdlock.length = mtdinfo.size;
- ioctl(fd, MEMUNLOCK, &mtdlock);
-
-err_out:
- close(fd);
-
- return ret;
-}
-
-static int mtd_mount_jffs2(void)
-{
- char rootfs_data[32];
-
- if (mkdir("/tmp/overlay", 0755)) {
- ERROR("failed to mkdir /tmp/overlay: %s\n", strerror(errno));
- return -1;
- }
-
- if (find_mtd_block("rootfs_data", rootfs_data, sizeof(rootfs_data))) {
- ERROR("rootfs_data does not exist\n");
- return -1;
- }
-
- if (mount(rootfs_data, "/tmp/overlay", "jffs2", MS_NOATIME, NULL)) {
- ERROR("failed to mount -t jffs2 %s /tmp/overlay: %s\n", rootfs_data, strerror(errno));
- return -1;
- }
-
- find_mtd_char("rootfs_data", rootfs_data, sizeof(rootfs_data));
-
- return mtd_unlock(rootfs_data);
-}
-
-static int jffs2_ready(char *mtd)
-{
- FILE *fp = fopen(mtd, "r");
- __u32 deadc0de;
- __u16 jffs2;
- size_t sz;
-
- if (!fp) {
- ERROR("reading %s failed\n", mtd);
- exit(-1);
- }
-
- sz = fread(&deadc0de, sizeof(deadc0de), 1, fp);
- fclose(fp);
-
- if (sz != 1) {
- ERROR("reading %s failed: %s\n", mtd, strerror(errno));
- exit(-1);
- }
-
- deadc0de = __be32_to_cpu(deadc0de);
- jffs2 = __be16_to_cpu(deadc0de >> 16);
-
- if (jffs2 == 0x1985) {
- LOG("jffs2 is ready\n");
- return FS_JFFS2;
- }
-
- if (deadc0de == 0xdeadc0de) {
- LOG("jffs2 is not ready - marker found\n");
- return FS_DEADCODE;
- }
-
- ERROR("No jffs2 marker was found\n");
-
- return FS_NONE;
-}
-
-static int check_fs_exists(char *fs)
-{
- FILE *fp = fopen("/proc/filesystems", "r");
- static char line[256];
- int ret = -1;
-
- DEBUG(2, "%s\n", fs);
-
- if (!fp) {
- ERROR("opening /proc/filesystems failed: %s\n", strerror(errno));
- goto out;
- }
-
- while (ret && fgets(line, sizeof(line), fp))
- if (strstr(line, fs))
- ret = 0;
-
- fclose(fp);
-
-out:
- return ret;
-}
-
-static int mount_move(char *oldroot, char *newroot, char *dir)
-{
-#ifndef MS_MOVE
-#define MS_MOVE (1 << 13)
-#endif
- struct stat s;
- char olddir[64];
- char newdir[64];
- int ret;
-
- DEBUG(2, "%s %s %s\n", oldroot, newroot, dir);
-
- snprintf(olddir, sizeof(olddir), "%s%s", oldroot, dir);
- snprintf(newdir, sizeof(newdir), "%s%s", newroot, dir);
-
- if (stat(olddir, &s) || !S_ISDIR(s.st_mode))
- return -1;
-
- if (stat(newdir, &s) || !S_ISDIR(s.st_mode))
- return -1;
-
- ret = mount(olddir, newdir, NULL, MS_NOATIME | MS_MOVE, NULL);
-
- if (ret)
- DEBUG(1, "failed %s %s: %s\n", olddir, newdir, strerror(errno));
-
- return ret;
-}
-
-static int pivot(char *new, char *old)
-{
- char pivotdir[64];
- int ret;
-
- DEBUG(2, "%s %s\n", new, old);
-
- if (mount_move("", new, "/proc"))
- return -1;
-
- snprintf(pivotdir, sizeof(pivotdir), "%s%s", new, old);
-
- ret = pivot_root(new, pivotdir);
-
- if (ret < 0) {
- ERROR("pivot_root failed %s %s: %s\n", new, pivotdir, strerror(errno));
- return -1;
- }
-
- mount_move(old, "", "/dev");
- mount_move(old, "", "/tmp");
- mount_move(old, "", "/sys");
- mount_move(old, "", "/overlay");
-
- return 0;
-}
-
-static int fopivot(char *rw_root, char *ro_root)
-{
- char overlay[64], lowerdir[64];
-
- DEBUG(2, "%s %s\n", rw_root, ro_root);
-
- if (check_fs_exists("overlay")) {
- ERROR("BUG: no suitable fs found\n");
- return -1;
- }
-
- snprintf(overlay, sizeof(overlay), "overlayfs:%s", rw_root);
- snprintf(lowerdir, sizeof(lowerdir), "lowerdir=/,upperdir=%s", rw_root);
-
- if (mount(overlay, "/mnt", "overlayfs", MS_NOATIME, lowerdir)) {
- ERROR("mount failed: %s\n", strerror(errno));
- return -1;
- }
-
- return pivot("/mnt", ro_root);
-}
-
-static int ramoverlay(void)
-{
- DEBUG(2, "\n");
-
- mkdir("/tmp/root", 0755);
- mount("tmpfs", "/tmp/root", "tmpfs", MS_NOATIME, "mode=0755");
-
- return fopivot("/tmp/root", "/rom");
-}
-
-static int switch2jffs(void)
-{
- char mtd[32];
-
- if (!find_mtd_block("rootfs_patches", mtd, sizeof(mtd)))
- return 0;
-
- if (find_mtd_block("rootfs_data", mtd, sizeof(mtd))) {
- ERROR("no rootfs_data was found\n");
- return -1;
- }
-
- if (mount(mtd, "/rom/overlay", "jffs2", MS_NOATIME, NULL)) {
- ERROR("failed - mount -t jffs2 %s /rom/overlay: %s\n", mtd, strerror(errno));
- return -1;
- }
-
- if (mount("none", "/", NULL, MS_NOATIME | MS_REMOUNT, 0)) {
- ERROR("failed - mount -o remount,ro none: %s\n", strerror(errno));
- return -1;
- }
-
- system("cp -a /tmp/root/* /rom/overlay");
-
- if (pivot("/rom", "/mnt")) {
- ERROR("failed - pivot /rom /mnt: %s\n", strerror(errno));
- return -1;
- }
-
- if (mount_move("/mnt", "/tmp/root", "")) {
- ERROR("failed - mount -o move /mnt /tmp/root %s\n", strerror(errno));
- return -1;
- }
-
- return fopivot("/overlay", "/rom");
-}
-
-static int handle_whiteout(const char *dir)
-{
- struct stat s;
- char link[256];
- ssize_t sz;
- struct dirent **namelist;
- int n;
-
- n = scandir(dir, &namelist, NULL, NULL);
-
- if (n < 1)
- return -1;
-
- while (n--) {
- char file[256];
-
- snprintf(file, sizeof(file), "%s%s", dir, namelist[n]->d_name);
- if (!lstat(file, &s) && S_ISLNK(s.st_mode)) {
- sz = readlink(file, link, sizeof(link) - 1);
- if (sz > 0) {
- char *orig;
-
- link[sz] = '\0';
- orig = strstr(&file[1], "/");
- if (orig && !strcmp(link, "(overlay-whiteout)")) {
- DEBUG(1, "unlinking %s\n", orig);
- unlink(orig);
- }
- }
- }
- free(namelist[n]);
- }
- free(namelist);
-
- return 0;
-}
-
-static int mtd_erase(const char *mtd)
-{
- int fd = open(mtd, O_RDWR | O_SYNC);
- struct mtd_info_user i;
- struct erase_info_user e;
- int ret;
-
- if (!fd) {
- ERROR("failed to open %s: %s\n", mtd, strerror(errno));
- return -1;
- }
-
- ret = ioctl(fd, MEMGETINFO, &i);
- if (ret) {
- ERROR("ioctl(%s, MEMGETINFO) failed: %s\n", mtd, strerror(errno));
- return -1;
- }
-
- e.length = i.erasesize;
- for (e.start = 0; e.start < i.size; e.start += i.erasesize) {
- ioctl(fd, MEMUNLOCK, &e);
- if(ioctl(fd, MEMERASE, &e))
- ERROR("Failed to erase block on %s at 0x%x\n", mtd, e.start);
- }
-
- close(fd);
- return 0;
-}
-
-static int ask_user(int argc, char **argv)
-{
- if ((argc < 2) || strcmp(argv[1], "-y")) {
- LOG("This will erase all settings and remove any installed packages. Are you sure? [N/y]\n");
- if (getchar() != 'y')
- return -1;
- }
- return 0;
-
-}
-
-static int handle_rmdir(const char *dir)
-{
- struct stat s;
- struct dirent **namelist;
- int n;
-
- n = scandir(dir, &namelist, NULL, NULL);
-
- if (n < 1)
- return -1;
-
- while (n--) {
- char file[256];
-
- snprintf(file, sizeof(file), "%s%s", dir, namelist[n]->d_name);
- if (!lstat(file, &s) && !S_ISDIR(s.st_mode)) {
- DEBUG(1, "unlinking %s\n", file);
- unlink(file);
- }
- free(namelist[n]);
- }
- free(namelist);
-
- DEBUG(1, "rmdir %s\n", dir);
- rmdir(dir);
-
- return 0;
-}
-
-static int main_jffs2reset(int argc, char **argv)
-{
- char mtd[32];
- char *mp;
-
- if (ask_user(argc, argv))
- return -1;
-
- if (check_fs_exists("overlay")) {
- ERROR("overlayfs not found\n");
- return -1;
- }
-
- if (find_mtd_block("rootfs_data", mtd, sizeof(mtd))) {
- ERROR("no rootfs_data was found\n");
- return -1;
- }
-
- mp = find_mount_point(mtd, "jffs2");
- if (mp) {
- LOG("%s is mounted as %s, only erasing files\n", mtd, mp);
- foreachdir(mp, handle_rmdir);
- mount(mp, "/", NULL, MS_REMOUNT, 0);
- } else {
- LOG("%s is not mounted, erasing it\n", mtd);
- find_mtd_char("rootfs_data", mtd, sizeof(mtd));
- mtd_erase(mtd);
- }
-
- return 0;
-}
-
-static int main_jffs2mark(int argc, char **argv)
-{
- FILE *fp;
- __u32 deadc0de = __cpu_to_be32(0xdeadc0de);
- char mtd[32];
- size_t sz;
-
- if (ask_user(argc, argv))
- return -1;
-
- if (find_mtd_block("rootfs_data", mtd, sizeof(mtd))) {
- ERROR("no rootfs_data was found\n");
- return -1;
- }
-
- fp = fopen(mtd, "w");
- LOG("%s - marking with deadc0de\n", mtd);
- if (!fp) {
- ERROR("opening %s failed\n", mtd);
- return -1;
- }
-
- sz = fwrite(&deadc0de, sizeof(deadc0de), 1, fp);
- fclose(fp);
-
- if (sz != 1) {
- ERROR("writing %s failed: %s\n", mtd, strerror(errno));
- return -1;
- }
-
- return 0;
- }
-static int main_switch2jffs(int argc, char **argv)
-{
- char mtd[32];
- char *mp;
- int ret = -1;
-
- if (find_overlay_mount("overlayfs:/tmp/root"))
- return -1;
-
- if (check_fs_exists("overlay")) {
- ERROR("overlayfs not found\n");
- return ret;
- }
-
- find_mtd_block("rootfs_data", mtd, sizeof(mtd));
- mp = find_mount_point(mtd, NULL);
- if (mp) {
- LOG("rootfs_data:%s is already mounted as %s\n", mtd, mp);
- return -1;
- }
-
- if (find_mtd_char("rootfs_data", mtd, sizeof(mtd))) {
- ERROR("no rootfs_data was found\n");
- return ret;
- }
-
- switch (jffs2_ready(mtd)) {
- case FS_NONE:
- ERROR("no jffs2 marker found\n");
- /* fall through */
-
- case FS_DEADCODE:
- ret = switch2jffs();
- if (!ret) {
- DEBUG(1, "doing fo cleanup\n");
- umount2("/tmp/root", MNT_DETACH);
- foreachdir("/overlay/", handle_whiteout);
- }
- break;
-
- case FS_JFFS2:
- ret = mtd_mount_jffs2();
- if (ret)
- break;
- if (mount_move("/tmp", "", "/overlay") || fopivot("/overlay", "/rom")) {
- ERROR("switching to jffs2 failed\n");
- ret = -1;
- }
- break;
- }
-
- return ret;
-}
-
-static int extroot(const char *prefix)
-{
- char block_path[32];
- char kmod_loader[64];
- struct stat s;
- pid_t pid;
-
- sprintf(block_path, "%s/sbin/block", prefix);
-
- if (stat(block_path, &s))
- {
- sprintf(block_path, "/sbin/block");
-
- if (stat(block_path, &s))
- return -1;
- }
-
- sprintf(kmod_loader, "/sbin/kmodloader %s/etc/modules-boot.d/ %s", prefix, prefix);
- system(kmod_loader);
-
- LOG("starting block executable %s\n", block_path);
-
- pid = fork();
- if (!pid) {
- mkdir("/tmp/extroot", 0755);
- execl(block_path, block_path, "extroot", NULL);
- exit(-1);
- } else if (pid > 0) {
- int status;
-
- waitpid(pid, &status, 0);
- if (!WEXITSTATUS(status)) {
- if (find_mount("/tmp/extroot/mnt")) {
- mount("/dev/root", "/", NULL, MS_NOATIME | MS_REMOUNT | MS_RDONLY, 0);
-
- mkdir("/tmp/extroot/mnt/proc", 0755);
- mkdir("/tmp/extroot/mnt/dev", 0755);
- mkdir("/tmp/extroot/mnt/sys", 0755);
- mkdir("/tmp/extroot/mnt/tmp", 0755);
- mkdir("/tmp/extroot/mnt/rom", 0755);
-
- if (mount_move("/tmp/extroot", "", "/mnt")) {
- ERROR("moving pivotroot failed - continue normal boot\n");
- umount("/tmp/extroot/mnt");
- } else if (pivot("/mnt", "/rom")) {
- ERROR("switching to pivotroot failed - continue normal boot\n");
- umount("/mnt");
- } else {
- umount("/tmp/overlay");
- rmdir("/tmp/overlay");
- rmdir("/tmp/extroot/mnt");
- rmdir("/tmp/extroot");
- return 0;
- }
- } else if (find_mount("/tmp/extroot/overlay")) {
- if (mount_move("/tmp/extroot", "", "/overlay")) {
- ERROR("moving extroot failed - continue normal boot\n");
- umount("/tmp/extroot/overlay");
- } else if (fopivot("/overlay", "/rom")) {
- ERROR("switching to extroot failed - continue normal boot\n");
- umount("/overlay");
- } else {
- umount("/tmp/overlay");
- rmdir("/tmp/overlay");
- rmdir("/tmp/extroot/overlay");
- rmdir("/tmp/extroot");
- return 0;
- }
- } else {
- ERROR("block executable did not set up an overlay\n");
- }
- } else {
- ERROR("block executable failed with code %d\n", WEXITSTATUS(status));
- }
- }
- return -1;
-}
-
-int main(int argc, char **argv)
-{
- char *mp;
- char mtd[32];
-
- argv0 = basename(*argv);
-
- if (!strcmp(basename(*argv), "jffs2mark"))
- return main_jffs2mark(argc, argv);
-
- if (!strcmp(basename(*argv), "jffs2reset"))
- return main_jffs2reset(argc, argv);
-
- if (!strcmp(basename(*argv), "switch2jffs"))
- return main_switch2jffs(argc, argv);
-
- if (!getenv("PREINIT"))
- return -1;
-
- if (!find_mtd_block("rootfs_patches", mtd, sizeof(mtd))) {
- ramoverlay();
- } else if (find_mtd_char("rootfs_data", mtd, sizeof(mtd))) {
- if (!find_mtd_char("rootfs", mtd, sizeof(mtd)))
- mtd_unlock(mtd);
- LOG("mounting /dev/root\n");
- mount("/dev/root", "/", NULL, MS_NOATIME | MS_REMOUNT, 0);
- } else {
- if (!extroot("")) {
- fprintf(stderr, "mount_root: switched to extroot\n");
- return 0;
- }
-
- switch (jffs2_ready(mtd)) {
- case FS_NONE:
- case FS_DEADCODE:
- return ramoverlay();
-
- case FS_JFFS2:
- find_mtd_block("rootfs_data", mtd, sizeof(mtd));
- mp = find_mount_point(mtd, NULL);
- if (mp) {
- LOG("rootfs_data:%s is already mounted as %s\n", mtd, mp);
- return -1;
- }
-
- mtd_mount_jffs2();
-
- if (!extroot("/tmp/overlay")) {
- fprintf(stderr, "mount_root: switched to extroot\n");
- return 0;
- }
-
- DEBUG(1, "switching to jffs2\n");
- if (mount_move("/tmp", "", "/overlay") || fopivot("/overlay", "/rom")) {
- ERROR("switching to jffs2 failed - fallback to ramoverlay\n");
- return ramoverlay();
- }
- }
- }
-
- return 0;
-}
projects / oweals / ubox.git / commitdiff