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-rw-r--r--src/shared/base-filesystem.c16
-rw-r--r--src/shared/base-filesystem.h4
-rw-r--r--src/shared/dev-setup.c29
-rw-r--r--src/shared/dev-setup.h4
-rw-r--r--src/shared/switch-root.c2
5 files changed, 42 insertions, 13 deletions
diff --git a/src/shared/base-filesystem.c b/src/shared/base-filesystem.c
index 11e0947407..ab6fc171b0 100644
--- a/src/shared/base-filesystem.c
+++ b/src/shared/base-filesystem.c
@@ -41,13 +41,16 @@ static const BaseFilesystem table[] = {
{ "lib", 0, "usr/lib\0", NULL },
{ "root", 0755, NULL, NULL },
{ "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) {
+int base_filesystem_create(const char *root, uid_t uid, gid_t gid) {
_cleanup_close_ int fd = -1;
unsigned i;
int r = 0;
@@ -90,6 +93,12 @@ int base_filesystem_create(const char *root) {
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;
}
@@ -97,6 +106,11 @@ int base_filesystem_create(const char *root) {
r = mkdirat(fd, table[i].dir, table[i].mode);
if (r < 0 && errno != EEXIST)
return log_error_errno(errno, "Failed to create directory 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 directory at %s/%s: %m", root, table[i].dir);
+ }
}
return 0;
diff --git a/src/shared/base-filesystem.h b/src/shared/base-filesystem.h
index 03201f7083..39a496090f 100644
--- a/src/shared/base-filesystem.h
+++ b/src/shared/base-filesystem.h
@@ -21,4 +21,6 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-int base_filesystem_create(const char *root);
+#include <sys/types.h>
+
+int base_filesystem_create(const char *root, uid_t uid, gid_t gid);
diff --git a/src/shared/dev-setup.c b/src/shared/dev-setup.c
index cb15da8a5d..25ad918b85 100644
--- a/src/shared/dev-setup.c
+++ b/src/shared/dev-setup.c
@@ -23,13 +23,12 @@
#include <stdlib.h>
#include <unistd.h>
-#include "dev-setup.h"
#include "util.h"
#include "label.h"
+#include "path-util.h"
+#include "dev-setup.h"
-int dev_setup(const char *prefix) {
- const char *j, *k;
-
+int dev_setup(const char *prefix, uid_t uid, gid_t gid) {
static const char symlinks[] =
"-/proc/kcore\0" "/dev/core\0"
"/proc/self/fd\0" "/dev/fd\0"
@@ -37,7 +36,13 @@ int dev_setup(const char *prefix) {
"/proc/self/fd/1\0" "/dev/stdout\0"
"/proc/self/fd/2\0" "/dev/stderr\0";
+ const char *j, *k;
+ int r;
+
NULSTR_FOREACH_PAIR(j, k, symlinks) {
+ _cleanup_free_ char *link_name = NULL;
+ const char *n;
+
if (j[0] == '-') {
j++;
@@ -46,15 +51,21 @@ int dev_setup(const char *prefix) {
}
if (prefix) {
- _cleanup_free_ char *link_name = NULL;
-
- link_name = strjoin(prefix, "/", k, NULL);
+ link_name = prefix_root(prefix, k);
if (!link_name)
return -ENOMEM;
- symlink_label(j, link_name);
+ n = link_name;
} else
- symlink_label(j, k);
+ n = k;
+
+ r = symlink_label(j, n);
+ if (r < 0)
+ log_debug_errno(r, "Failed to symlink %s to %s: %m", j, n);
+
+ if (uid != UID_INVALID || gid != GID_INVALID)
+ if (lchown(n, uid, gid) < 0)
+ log_debug_errno(errno, "Failed to chown %s: %m", n);
}
return 0;
diff --git a/src/shared/dev-setup.h b/src/shared/dev-setup.h
index d41b6eefba..ab2748db7f 100644
--- a/src/shared/dev-setup.h
+++ b/src/shared/dev-setup.h
@@ -21,4 +21,6 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-int dev_setup(const char *pathprefix);
+#include <sys/types.h>
+
+int dev_setup(const char *prefix, uid_t uid, gid_t gid);
diff --git a/src/shared/switch-root.c b/src/shared/switch-root.c
index ae3839de16..b12189cd10 100644
--- a/src/shared/switch-root.c
+++ b/src/shared/switch-root.c
@@ -105,7 +105,7 @@ int switch_root(const char *new_root, const char *oldroot, bool detach_oldroot,
* to look like. They might even boot, if they are RO and
* don't have the FS layout. Just ignore the error and
* switch_root() nevertheless. */
- (void) base_filesystem_create(new_root);
+ (void) base_filesystem_create(new_root, UID_INVALID, GID_INVALID);
if (chdir(new_root) < 0)
return log_error_errno(errno, "Failed to change directory to %s: %m", new_root);