nspawn: a bench of special fileystems that should not be shifted

Add some special filesystems that should not be shifted, most of them
relate to the host and not to containers.

diff --git a/src/basic/missing.h b/src/basic/missing.h
index 651e414..2077ada 100644 (file)
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -453,6 +453,18 @@ struct btrfs_ioctl_quota_ctl_args {
 #define MQUEUE_MAGIC 0x19800202
 #endif
 
+#ifndef SECURITYFS_MAGIC
+#define SECURITYFS_MAGIC 0x73636673
+#endif
+
+#ifndef TRACEFS_MAGIC
+#define TRACEFS_MAGIC 0x74726163
+#endif
+
+#ifndef BPF_FS_MAGIC
+#define BPF_FS_MAGIC 0xcafe4a11
+#endif
+
 #ifndef MS_MOVE
 #define MS_MOVE 8192
 #endif

diff --git a/src/nspawn/nspawn-patch-uid.c b/src/nspawn/nspawn-patch-uid.c
index c7382d4..6b26b07 100644 (file)
--- a/src/nspawn/nspawn-patch-uid.c
+++ b/src/nspawn/nspawn-patch-uid.c
@@ -300,6 +300,9 @@ static int is_procfs_sysfs_or_suchlike(int fd) {
                F_TYPE_EQUAL(sfs.f_type, PSTOREFS_MAGIC) ||
                F_TYPE_EQUAL(sfs.f_type, SELINUX_MAGIC) ||
                F_TYPE_EQUAL(sfs.f_type, SMACK_MAGIC) ||
+               F_TYPE_EQUAL(sfs.f_type, SECURITYFS_MAGIC) ||
+               F_TYPE_EQUAL(sfs.f_type, BPF_FS_MAGIC) ||
+               F_TYPE_EQUAL(sfs.f_type, TRACEFS_MAGIC) ||
                F_TYPE_EQUAL(sfs.f_type, SYSFS_MAGIC);
 }