char*
xdg_get_path(const char *xdg_env, const char *default_path)
{
assert(xdg_env && default_path && default_path[0] != '/');
if (!xdg_env || !default_path || default_path[0] == '/')
return NULL;
const char *xdg_dir;
if ((xdg_dir = getenv(xdg_env)) && xdg_dir[0] == '/')
return strip_slash(ccopy(xdg_dir));
char *home;
if (!(home = get_home()))
return NULL; /** fatal! */
const size_t len = snprintf(NULL, 0, "%s/%s", home, default_path) + 1;
char *path;
if (!(path = calloc(1, len))) {
free(home);
return NULL; /** fatal! */
}
snprintf(path, len, "%s/%s", home, default_path);
free(home);
return path;
}
static int format_partname(char *buf, size_t bufsiz,
const char *mapname, const char *delim, int part)
{
if (snprintf(buf, bufsiz, "%s%s%d", mapname, delim, part) >= bufsiz)
return 0;
strip_slash(buf);
return 1;
}
const char*
xdg_get_paths(const char *xdg_env, const char *default_paths, struct xdg_paths *state, uint32_t max_iter)
{
assert(xdg_env && default_paths && state);
if ((state->path && !*state->path) || state->iter == max_iter) {
free((char*)state->paths);
return NULL;
}
++state->iter;
if (!state->paths) {
if (!xdg_env || !default_paths)
return NULL;
const char *paths;
if (!(paths = getenv(xdg_env)) || !paths[0])
paths = default_paths;
state->path = state->paths = ccopy(paths);
}
if (!state->path || !state->paths)
return NULL;
char *path;
do {
size_t f;
path = (char*)state->path;
if ((f = strcspn(state->path, ":")) > 0) {
state->path += f + (path[f] ? 1 : 0);
path[f] = 0;
}
if (!*path) {
free((char*)state->paths);
return NULL;
}
} while (path[0] != '/');
return strip_slash(path);
}
int rs_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) {
char *clean_path = adjust_path(path, true);
log_msg("OP READDIR %s", clean_path);
//struct rs_node *node = rs_get_node(clean_path);
struct rs_node *node = get_node_remote(clean_path, true);
if(node == NULL) {
if(path != clean_path) {
free(clean_path);
}
return -ENOENT;
}
log_msg("READDIR GOT NODE: %s", inspect_rs_node(node));
filler(buf, ".", NULL, 0);
filler(buf, "..", NULL, 0);
struct rs_dir_entry *entry;
char *tmp;
for(entry = (struct rs_dir_entry*)node->data; entry != NULL; entry = entry->next) {
log_msg("READDIR FOUND ENTRY: %s", inspect_rs_dir_entry(entry));
if(is_dir(entry->name)) {
tmp = strip_slash(entry->name);
filler(buf, tmp, NULL, 0);
free(tmp);
} else {
filler(buf, entry->name, NULL, 0);
}
}
if(path != clean_path) {
free(clean_path);
}
free_node(node);
return 0;
}
int
main(int argc, char **argv){
int fd, i, j, m, n, op, off, arg, c, d;
struct slice all;
struct pt *ptp;
enum action what = LIST;
char *type, *diskdevice, *device, *progname;
int verbose = 0;
char partname[PARTNAME_SIZE], params[PARTNAME_SIZE + 16];
char * loopdev = NULL;
char * delim = NULL;
char *uuid = NULL;
char *mapname = NULL;
int loopro = 0;
int hotplug = 0;
int loopcreated = 0;
int sync = 0;
struct stat buf;
uint32_t cookie = 0;
initpts();
init_crc32();
type = device = diskdevice = NULL;
memset(&all, 0, sizeof(all));
memset(&partname, 0, sizeof(partname));
/* Check whether hotplug mode. */
progname = strrchr(argv[0], '/');
if (!progname)
progname = argv[0];
else
progname++;
if (!strcmp(progname, "kpartx.dev")) { /* Hotplug mode */
hotplug = 1;
/* Setup for original kpartx variables */
if (!(device = get_hotplug_device()))
exit(1);
diskdevice = device;
what = ADD;
} else if (argc < 2) {
usage();
exit(1);
}
while ((arg = getopt(argc, argv, short_opts)) != EOF) switch(arg) {
case 'g':
force_gpt=1;
break;
case 't':
type = optarg;
break;
case 'v':
verbose = 1;
break;
case 'p':
delim = optarg;
break;
case 'l':
what = LIST;
break;
case 'a':
what = ADD;
break;
case 'd':
what = DELETE;
break;
case 's':
sync = 1;
break;
default:
usage();
exit(1);
}
if (!sync)
dm_udev_set_sync_support(0);
if (dm_prereq(DM_TARGET, 0, 0, 0) && (what == ADD || what == DELETE)) {
fprintf(stderr, "device mapper prerequisites not met\n");
exit(1);
}
if (hotplug) {
/* already got [disk]device */
} else if (optind == argc-2) {
device = argv[optind];
diskdevice = argv[optind+1];
} else if (optind == argc-1) {
diskdevice = device = argv[optind];
} else {
usage();
exit(1);
}
if (stat(device, &buf)) {
printf("failed to stat() %s\n", device);
exit (1);
}
if (S_ISREG (buf.st_mode)) {
/* already looped file ? */
loopdev = find_loop_by_file(device);
if (!loopdev && what == DELETE)
exit (0);
if (!loopdev) {
loopdev = find_unused_loop_device();
if (set_loop(loopdev, device, 0, &loopro)) {
fprintf(stderr, "can't set up loop\n");
exit (1);
}
loopcreated = 1;
}
device = loopdev;
}
if (delim == NULL) {
delim = malloc(DELIM_SIZE);
memset(delim, 0, DELIM_SIZE);
set_delimiter(device, delim);
}
off = find_devname_offset(device);
if (!loopdev) {
uuid = dm_mapuuid((unsigned int)MAJOR(buf.st_rdev),
(unsigned int)MINOR(buf.st_rdev));
mapname = dm_mapname((unsigned int)MAJOR(buf.st_rdev),
(unsigned int)MINOR(buf.st_rdev));
}
if (!uuid)
uuid = device + off;
if (!mapname)
mapname = device + off;
fd = open(device, O_RDONLY);
if (fd == -1) {
perror(device);
exit(1);
}
/* add/remove partitions to the kernel devmapper tables */
int r = 0;
for (i = 0; i < ptct; i++) {
ptp = &pts[i];
if (type && strcmp(type, ptp->type))
continue;
/* here we get partitions */
n = ptp->fn(fd, all, slices, SIZE(slices));
#ifdef DEBUG
if (n >= 0)
printf("%s: %d slices\n", ptp->type, n);
#endif
if (n > 0)
close(fd);
else
continue;
switch(what) {
case LIST:
for (j = 0, c = 0, m = 0; j < n; j++) {
if (slices[j].size == 0)
continue;
if (slices[j].container > 0) {
c++;
continue;
}
slices[j].minor = m++;
printf("%s%s%d : 0 %" PRIu64 " %s %" PRIu64"\n",
mapname, delim, j+1,
slices[j].size, device,
slices[j].start);
}
/* Loop to resolve contained slices */
d = c;
while (c) {
for (j = 0; j < n; j++) {
uint64_t start;
int k = slices[j].container - 1;
if (slices[j].size == 0)
continue;
if (slices[j].minor > 0)
continue;
if (slices[j].container == 0)
continue;
slices[j].minor = m++;
start = slices[j].start - slices[k].start;
printf("%s%s%d : 0 %" PRIu64 " /dev/dm-%d %" PRIu64 "\n",
mapname, delim, j+1,
slices[j].size,
slices[k].minor, start);
c--;
}
/* Terminate loop if nothing more to resolve */
if (d == c)
break;
}
if (loopcreated && S_ISREG (buf.st_mode)) {
if (del_loop(device)) {
if (verbose)
printf("can't del loop : %s\n",
device);
exit(1);
}
printf("loop deleted : %s\n", device);
}
break;
case DELETE:
for (j = n-1; j >= 0; j--) {
if (safe_sprintf(partname, "%s%s%d",
mapname, delim, j+1)) {
fprintf(stderr, "partname too small\n");
exit(1);
}
strip_slash(partname);
if (!slices[j].size || !dm_map_present(partname))
continue;
if (!dm_simplecmd(DM_DEVICE_REMOVE, partname,
0, &cookie)) {
r++;
continue;
}
if (verbose)
printf("del devmap : %s\n", partname);
}
if (S_ISREG (buf.st_mode)) {
if (del_loop(device)) {
if (verbose)
printf("can't del loop : %s\n",
device);
exit(1);
}
printf("loop deleted : %s\n", device);
}
break;
case ADD:
for (j = 0, c = 0; j < n; j++) {
if (slices[j].size == 0)
continue;
/* Skip all contained slices */
if (slices[j].container > 0) {
c++;
continue;
}
if (safe_sprintf(partname, "%s%s%d",
mapname, delim, j+1)) {
fprintf(stderr, "partname too small\n");
exit(1);
}
strip_slash(partname);
if (safe_sprintf(params, "%s %" PRIu64 ,
device, slices[j].start)) {
fprintf(stderr, "params too small\n");
exit(1);
}
op = (dm_map_present(partname) ?
DM_DEVICE_RELOAD : DM_DEVICE_CREATE);
if (!dm_addmap(op, partname, DM_TARGET, params,
slices[j].size, uuid, j+1,
buf.st_mode & 0777, buf.st_uid,
buf.st_gid, &cookie)) {
fprintf(stderr, "create/reload failed on %s\n",
partname);
r++;
}
if (op == DM_DEVICE_RELOAD &&
!dm_simplecmd(DM_DEVICE_RESUME, partname,
1, &cookie)) {
fprintf(stderr, "resume failed on %s\n",
partname);
r++;
}
dm_devn(partname, &slices[j].major,
&slices[j].minor);
if (verbose)
printf("add map %s (%d:%d): 0 %" PRIu64 " %s %s\n",
partname, slices[j].major,
slices[j].minor, slices[j].size,
DM_TARGET, params);
}
/* Loop to resolve contained slices */
d = c;
while (c) {
for (j = 0; j < n; j++) {
uint64_t start;
int k = slices[j].container - 1;
if (slices[j].size == 0)
continue;
/* Skip all existing slices */
if (slices[j].minor > 0)
continue;
/* Skip all simple slices */
if (slices[j].container == 0)
continue;
/* Check container slice */
if (slices[k].size == 0)
fprintf(stderr, "Invalid slice %d\n",
k);
if (safe_sprintf(partname, "%s%s%d",
mapname, delim, j+1)) {
fprintf(stderr, "partname too small\n");
exit(1);
}
strip_slash(partname);
start = slices[j].start - slices[k].start;
if (safe_sprintf(params, "%d:%d %" PRIu64,
slices[k].major,
slices[k].minor,
start)) {
fprintf(stderr, "params too small\n");
exit(1);
}
op = (dm_map_present(partname) ?
DM_DEVICE_RELOAD : DM_DEVICE_CREATE);
dm_addmap(op, partname, DM_TARGET, params,
slices[j].size, uuid, j+1,
buf.st_mode & 0777,
buf.st_uid, buf.st_gid,
&cookie);
if (op == DM_DEVICE_RELOAD)
dm_simplecmd(DM_DEVICE_RESUME,
partname, 1,
&cookie);
dm_devn(partname, &slices[j].major,
&slices[j].minor);
if (verbose)
printf("add map %s : 0 %" PRIu64 " %s %s\n",
partname, slices[j].size,
DM_TARGET, params);
c--;
}
/* Terminate loop */
if (d == c)
break;
}
break;
default:
break;
}
if (n > 0)
break;
}
dm_udev_wait(cookie);
dm_lib_release();
dm_lib_exit();
return r;
}
