cryptsetup: support non-LUKS crypto partitions

[elogind.git] / src / mount-setup.c

diff --git a/src/mount-setup.c b/src/mount-setup.c
index d2f05bc5cf2fb56c53a989bb46b4734e06dc973b..6efc48e4dce8c493e669442ff1ee479b4ffd1d99 100644 (file)
--- a/src/mount-setup.c
+++ b/src/mount-setup.c
@@ -26,6 +26,8 @@
 #include <string.h>
 #include <libgen.h>
 #include <assert.h>
+#include <unistd.h>
+#include <ftw.h>
 
 #include "mount-setup.h"
 #include "log.h"
@@ -72,11 +74,17 @@ bool mount_point_is_api(const char *path) {
                 if (path_equal(path, mount_table[i].where))
                         return true;
 
+        return path_startswith(path, "/sys/fs/cgroup/");
+}
+
+bool mount_point_ignore(const char *path) {
+       unsigned i;
+
         for (i = 0; i < ELEMENTSOF(ignore_paths); i++)
                 if (path_equal(path, ignore_paths[i]))
                         return true;
 
-        return path_startswith(path, "/sys/fs/cgroup/");
+        return false;
 }
 
 static int mount_one(const MountPoint *p) {
@@ -171,13 +179,68 @@ finish:
         return r;
 }
 
+static int symlink_and_label(const char *old_path, const char *new_path) {
+        int r;
+
+        assert(old_path);
+        assert(new_path);
+
+        if ((r = label_symlinkfile_set(new_path)) < 0)
+                return r;
+
+        if (symlink(old_path, new_path) < 0)
+                r = -errno;
+
+        label_file_clear();
+
+        return r;
+}
+
+static int nftw_cb(
+                const char *fpath,
+                const struct stat *sb,
+                int tflag,
+                struct FTW *ftwbuf) {
+
+        /* No need to label /dev twice in a row... */
+        if (ftwbuf->level == 0)
+                return 0;
+
+        label_fix(fpath);
+        return 0;
+};
+
 int mount_setup(void) {
+
+        const char *symlinks =
+                "/proc/kcore\0"      "/dev/core\0"
+                "/proc/self/fd\0"    "/dev/fd\0"
+                "/proc/self/fd/0\0"  "/dev/stdin\0"
+                "/proc/self/fd/1\0"  "/dev/stdout\0"
+                "/proc/self/fd/2\0"  "/dev/stderr\0"
+                "\0";
+
         int r;
         unsigned i;
+        const char *j, *k;
 
         for (i = 0; i < ELEMENTSOF(mount_table); i ++)
                 if ((r = mount_one(mount_table+i)) < 0)
                         return r;
 
+        /* Nodes in devtmpfs need to be manually updated for the
+         * appropriate labels, after mounting. The other virtual API
+         * file systems do not need. */
+
+        if (unlink("/dev/.systemd/relabel-devtmpfs") >= 0)
+                nftw("/dev", nftw_cb, 64, FTW_MOUNT|FTW_PHYS);
+
+        /* Create a few default symlinks, which are normally created
+         * bei udevd, but some scripts might need them before we start
+         * udevd. */
+
+        NULSTR_FOREACH_PAIR(j, k, symlinks)
+                symlink_and_label(j, k);
+
         return mount_cgroup_controllers();
 }