diff options
Diffstat (limited to 'src/shared/base-filesystem.c')
| -rw-r--r-- | src/shared/base-filesystem.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/src/shared/base-filesystem.c b/src/shared/base-filesystem.c deleted file mode 100644 index 59a34a9d11..0000000000 --- a/src/shared/base-filesystem.c +++ /dev/null @@ -1,129 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Kay Sievers - - systemd 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. - - systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <fcntl.h> -#include <stdbool.h> -#include <stdlib.h> -#include <sys/stat.h> -#include <syslog.h> -#include <unistd.h> - -#include "alloc-util.h" -#include "base-filesystem.h" -#include "fd-util.h" -#include "log.h" -#include "macro.h" -#include "string-util.h" -#include "umask-util.h" -#include "user-util.h" -#include "util.h" - -typedef struct BaseFilesystem { - const char *dir; - mode_t mode; - const char *target; - const char *exists; - bool ignore_failure; -} BaseFilesystem; - -static const BaseFilesystem table[] = { - { "bin", 0, "usr/bin\0", NULL }, - { "lib", 0, "usr/lib\0", NULL }, - { "root", 0755, NULL, NULL, true }, - { "sbin", 0, "usr/sbin\0", NULL }, - { "usr", 0755, NULL, NULL }, - { "var", 0755, NULL, NULL }, - { "etc", 0755, NULL, NULL }, -#if defined(__i386__) || defined(__x86_64__) - { "lib64", 0, "usr/lib/x86_64-linux-gnu\0" - "usr/lib64\0", "ld-linux-x86-64.so.2" }, -#endif -}; - -int base_filesystem_create(const char *root, uid_t uid, gid_t gid) { - _cleanup_close_ int fd = -1; - unsigned i; - int r = 0; - - fd = open(root, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); - if (fd < 0) - return log_error_errno(errno, "Failed to open root file system: %m"); - - for (i = 0; i < ELEMENTSOF(table); i ++) { - if (faccessat(fd, table[i].dir, F_OK, AT_SYMLINK_NOFOLLOW) >= 0) - continue; - - if (table[i].target) { - const char *target = NULL, *s; - - /* check if one of the targets exists */ - NULSTR_FOREACH(s, table[i].target) { - if (faccessat(fd, s, F_OK, AT_SYMLINK_NOFOLLOW) < 0) - continue; - - /* check if a specific file exists at the target path */ - if (table[i].exists) { - _cleanup_free_ char *p = NULL; - - p = strjoin(s, "/", table[i].exists, NULL); - if (!p) - return log_oom(); - - if (faccessat(fd, p, F_OK, AT_SYMLINK_NOFOLLOW) < 0) - continue; - } - - target = s; - break; - } - - if (!target) - continue; - - r = symlinkat(target, fd, table[i].dir); - if (r < 0 && errno != EEXIST) - return log_error_errno(errno, "Failed to create symlink at %s/%s: %m", root, table[i].dir); - - if (uid != UID_INVALID || gid != UID_INVALID) { - if (fchownat(fd, table[i].dir, uid, gid, AT_SYMLINK_NOFOLLOW) < 0) - return log_error_errno(errno, "Failed to chown symlink at %s/%s: %m", root, table[i].dir); - } - - continue; - } - - RUN_WITH_UMASK(0000) - r = mkdirat(fd, table[i].dir, table[i].mode); - if (r < 0 && errno != EEXIST) { - log_full_errno(table[i].ignore_failure ? LOG_DEBUG : LOG_ERR, errno, - "Failed to create directory at %s/%s: %m", root, table[i].dir); - - if (!table[i].ignore_failure) - return -errno; - } - - if (uid != UID_INVALID || gid != UID_INVALID) { - if (fchownat(fd, table[i].dir, uid, gid, AT_SYMLINK_NOFOLLOW) < 0) - return log_error_errno(errno, "Failed to chown directory at %s/%s: %m", root, table[i].dir); - } - } - - return 0; -} |