#include <sys/mount.h>
#include <unistd.h>
-#include "fd-util.h"
-#include "fileio.h"
-#include "format-util.h"
-#include "fs-util.h"
#include "log.h"
#include "mkfs-util.h"
#include "mount-util.h"
#include "path-util.h"
#include "process-util.h"
#include "recurse-dir.h"
-#include "rm-rf.h"
#include "stat-util.h"
#include "stdio-util.h"
#include "string-util.h"
#include "strv.h"
-#include "tmpfile-util.h"
#include "utf8.h"
int mkfs_exists(const char *fstype) {
return 0;
}
-typedef struct ProtofileData {
- FILE *file;
- bool has_filename_with_spaces;
- const char *tmpdir;
-} ProtofileData;
-
-static int protofile_print_item(
- RecurseDirEvent event,
- const char *path,
- int dir_fd,
- int inode_fd,
- const struct dirent *de,
- const struct statx *sx,
- void *userdata) {
-
- ProtofileData *data = ASSERT_PTR(userdata);
- _cleanup_free_ char *copy = NULL;
- int r;
-
- if (event == RECURSE_DIR_LEAVE) {
- fputs("$\n", data->file);
- return 0;
- }
-
- if (!IN_SET(event, RECURSE_DIR_ENTER, RECURSE_DIR_ENTRY))
- return RECURSE_DIR_CONTINUE;
-
- char type = S_ISDIR(sx->stx_mode) ? 'd' :
- S_ISREG(sx->stx_mode) ? '-' :
- S_ISLNK(sx->stx_mode) ? 'l' :
- S_ISFIFO(sx->stx_mode) ? 'p' :
- S_ISBLK(sx->stx_mode) ? 'b' :
- S_ISCHR(sx->stx_mode) ? 'c' : 0;
- if (type == 0)
- return RECURSE_DIR_CONTINUE;
-
- /* The protofile format does not support spaces in filenames as whitespace is used as a token
- * delimiter. To work around this limitation, mkfs.xfs allows escaping whitespace by using the /
- * character (which isn't allowed in filenames and as such can be used to escape whitespace). See
- * https://lore.kernel.org/linux-xfs/20230222090303.h6tujm7y32gjhgal@andromeda/T/#m8066b3e7d62a080ee7434faac4861d944e64493b
- * for more information. */
-
- if (strchr(de->d_name, ' ')) {
- copy = strdup(de->d_name);
- if (!copy)
- return log_oom();
-
- string_replace_char(copy, ' ', '/');
- data->has_filename_with_spaces = true;
- }
-
- fprintf(data->file, "%s %c%c%c%03o "UID_FMT" "GID_FMT" ",
- copy ?: de->d_name,
- type,
- sx->stx_mode & S_ISUID ? 'u' : '-',
- sx->stx_mode & S_ISGID ? 'g' : '-',
- (unsigned) (sx->stx_mode & 0777),
- sx->stx_uid, sx->stx_gid);
-
- if (S_ISREG(sx->stx_mode)) {
- _cleanup_free_ char *p = NULL;
-
- /* While we can escape whitespace in the filename, we cannot escape whitespace in the source
- * path, so hack around that by creating a symlink to the path in a temporary directory and
- * using the symlink as the source path instead. */
-
- if (strchr(path, ' ')) {
- r = tempfn_random_child(data->tmpdir, "mkfs-xfs", &p);
- if (r < 0)
- return log_error_errno(r, "Failed to generate random child name in %s: %m", data->tmpdir);
-
- if (symlink(path, p) < 0)
- return log_error_errno(errno, "Failed to symlink %s to %s: %m", p, path);
- }
-
- fputs(p ?: path, data->file);
- } else if (S_ISLNK(sx->stx_mode)) {
- _cleanup_free_ char *p = NULL;
-
- r = readlinkat_malloc(dir_fd, de->d_name, &p);
- if (r < 0)
- return log_error_errno(r, "Failed to read symlink %s: %m", path);
-
- /* If we have a symlink to a path with whitespace in it, we're out of luck, as there's no way
- * to encode that in the mkfs.xfs protofile format. */
-
- if (strchr(p, ' '))
- return log_error_errno(r, "Symlinks to paths containing whitespace are not supported by mkfs.xfs: %m");
-
- fputs(p, data->file);
- } else if (S_ISBLK(sx->stx_mode) || S_ISCHR(sx->stx_mode))
- fprintf(data->file, "%" PRIu32 " %" PRIu32, sx->stx_rdev_major, sx->stx_rdev_minor);
-
- fputc('\n', data->file);
-
- return RECURSE_DIR_CONTINUE;
-}
-
-static int make_protofile(const char *root, char **ret_path, bool *ret_has_filename_with_spaces, char **ret_tmpdir) {
- _cleanup_(rm_rf_physical_and_freep) char *tmpdir = NULL;
- _cleanup_fclose_ FILE *f = NULL;
- _cleanup_(unlink_and_freep) char *p = NULL;
- struct ProtofileData data = {};
- const char *vt;
- int r;
-
- assert(ret_path);
- assert(ret_has_filename_with_spaces);
- assert(ret_tmpdir);
-
- r = var_tmp_dir(&vt);
- if (r < 0)
- return log_error_errno(r, "Failed to get persistent temporary directory: %m");
-
- r = fopen_temporary_child(vt, &f, &p);
- if (r < 0)
- return log_error_errno(r, "Failed to open temporary file: %m");
-
- /* Explicitly use /tmp here because this directory cannot have spaces its path. */
- r = mkdtemp_malloc("/tmp/systemd-mkfs-XXXXXX", &tmpdir);
- if (r < 0)
- return log_error_errno(r, "Failed to create temporary directory: %m");
-
- data.file = f;
- data.tmpdir = tmpdir;
-
- fputs("/\n"
- "0 0\n"
- "d--755 0 0\n", f);
-
- r = recurse_dir_at(AT_FDCWD, root, STATX_TYPE|STATX_MODE|STATX_UID|STATX_GID, UINT_MAX,
- RECURSE_DIR_SORT, protofile_print_item, &data);
- if (r < 0)
- return log_error_errno(r, "Failed to recurse through %s: %m", root);
-
- fputs("$\n", f);
-
- r = fflush_and_check(f);
- if (r < 0)
- return log_error_errno(r, "Failed to flush %s: %m", p);
-
- *ret_path = TAKE_PTR(p);
- *ret_has_filename_with_spaces = data.has_filename_with_spaces;
- *ret_tmpdir = TAKE_PTR(tmpdir);
-
- return 0;
-}
-
int make_filesystem(
const char *node,
const char *fstype,
_cleanup_free_ char *mkfs = NULL, *mangled_label = NULL;
_cleanup_strv_free_ char **argv = NULL, **env = NULL;
- _cleanup_(rm_rf_physical_and_freep) char *protofile_tmpdir = NULL;
- _cleanup_(unlink_and_freep) char *protofile = NULL;
char vol_id[CONST_MAX(SD_ID128_UUID_STRING_MAX, 8U + 1U)] = {};
int stdio_fds[3] = { -EBADF, STDERR_FILENO, STDERR_FILENO};
ForkFlags fork_flags = FORK_RESET_SIGNALS|FORK_RLIMIT_NOFILE_SAFE|FORK_DEATHSIG_SIGTERM|FORK_LOG|FORK_WAIT|
if (!FLAGS_SET(flags, MKFS_DISCARD) && strv_extend(&argv, "-K") < 0)
return log_oom();
- if (root) {
- bool has_filename_with_spaces = false;
- _cleanup_free_ char *protofile_with_opt = NULL;
-
- r = make_protofile(root, &protofile, &has_filename_with_spaces, &protofile_tmpdir);
- if (r < 0)
- return r;
-
- /* Gross hack to make mkfs.xfs interpret slashes as spaces so we can encode filenames
- * with spaces in the protofile format. */
- if (has_filename_with_spaces)
- protofile_with_opt = strjoin("slashes_are_spaces=1,", protofile);
- else
- protofile_with_opt = strdup(protofile);
- if (!protofile_with_opt)
- return -ENOMEM;
-
- if (strv_extend_many(&argv, "-p", protofile_with_opt) < 0)
- return log_oom();
- }
+ if (root && strv_extend_many(&argv, "-p", root) < 0)
+ return log_oom();
if (sector_size > 0) {
if (strv_extend(&argv, "-s") < 0)
projects / thirdparty / systemd.git / commitdiff
