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-rw-r--r--samples/landlock/sandboxer.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/samples/landlock/sandboxer.c b/samples/landlock/sandboxer.c
index 8b8ecd65c2..e8223c3e78 100644
--- a/samples/landlock/sandboxer.c
+++ b/samples/landlock/sandboxer.c
@@ -81,7 +81,8 @@ static int parse_path(char *env_path, const char ***const path_list)
LANDLOCK_ACCESS_FS_EXECUTE | \
LANDLOCK_ACCESS_FS_WRITE_FILE | \
LANDLOCK_ACCESS_FS_READ_FILE | \
- LANDLOCK_ACCESS_FS_TRUNCATE)
+ LANDLOCK_ACCESS_FS_TRUNCATE | \
+ LANDLOCK_ACCESS_FS_IOCTL_DEV)
/* clang-format on */
@@ -202,11 +203,12 @@ out_free_name:
LANDLOCK_ACCESS_FS_MAKE_BLOCK | \
LANDLOCK_ACCESS_FS_MAKE_SYM | \
LANDLOCK_ACCESS_FS_REFER | \
- LANDLOCK_ACCESS_FS_TRUNCATE)
+ LANDLOCK_ACCESS_FS_TRUNCATE | \
+ LANDLOCK_ACCESS_FS_IOCTL_DEV)
/* clang-format on */
-#define LANDLOCK_ABI_LAST 4
+#define LANDLOCK_ABI_LAST 5
int main(const int argc, char *const argv[], char *const *const envp)
{
@@ -320,6 +322,11 @@ int main(const int argc, char *const argv[], char *const *const envp)
ruleset_attr.handled_access_net &=
~(LANDLOCK_ACCESS_NET_BIND_TCP |
LANDLOCK_ACCESS_NET_CONNECT_TCP);
+ __attribute__((fallthrough));
+ case 4:
+ /* Removes LANDLOCK_ACCESS_FS_IOCTL_DEV for ABI < 5 */
+ ruleset_attr.handled_access_fs &= ~LANDLOCK_ACCESS_FS_IOCTL_DEV;
+
fprintf(stderr,
"Hint: You should update the running kernel "
"to leverage Landlock features "