[LTP] [PATCH v2 02/11] Add lapi/landlock.h fallback

[Andrea Cervesato]

From: Andrea Cervesato <andrea.cervesato@suse.com>

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
 configure.ac            |   6 +++
 include/lapi/landlock.h | 123 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 129 insertions(+)

diff --git a/configure.ac b/configure.ac
index 82969b8d3..1f8796c87 100644
--- a/configure.ac
+++ b/configure.ac
@@ -60,6 +60,7 @@ AC_CHECK_HEADERS_ONCE([ \
     linux/io_uring.h \
     linux/ioprio.h \
     linux/keyctl.h \
+    linux/landlock.h \
     linux/mempolicy.h \
     linux/module.h \
     linux/mount.h \
@@ -157,6 +158,7 @@ AC_CHECK_FUNCS_ONCE([ \
 AC_CHECK_FUNCS(mkdtemp,[],AC_MSG_ERROR(mkdtemp() not found!))
 
 AC_CHECK_MEMBERS([struct fanotify_event_info_fid.fsid.__val],,,[#include <sys/fanotify.h>])
+AC_CHECK_MEMBERS([struct landlock_ruleset_attr.handled_access_net],,,[#include <linux/landlock.h>])
 AC_CHECK_MEMBERS([struct perf_event_mmap_page.aux_head],,,[#include <linux/perf_event.h>])
 AC_CHECK_MEMBERS([struct sigaction.sa_sigaction],[],[],[#include <signal.h>])
 AC_CHECK_MEMBERS([struct statx.stx_mnt_id, struct statx.stx_dio_mem_align],,,[
@@ -170,6 +172,7 @@ AC_CHECK_MEMBERS([struct utsname.domainname],,,[
 ])
 
 AC_CHECK_TYPES([enum kcmp_type],,,[#include <linux/kcmp.h>])
+AC_CHECK_TYPES([enum landlock_rule_type],,,[#include <linux/landlock.h>])
 AC_CHECK_TYPES([struct acct_v3],,,[#include <sys/acct.h>])
 AC_CHECK_TYPES([struct af_alg_iv, struct sockaddr_alg],,,[# include <linux/if_alg.h>])
 AC_CHECK_TYPES([struct fanotify_event_info_fid, struct fanotify_event_info_error,
@@ -190,6 +193,9 @@ AC_CHECK_TYPES([struct if_nextdqblk],,,[#include <linux/quota.h>])
 AC_CHECK_TYPES([struct iovec],,,[#include <sys/uio.h>])
 AC_CHECK_TYPES([struct ipc64_perm],,,[#include <sys/ipcbuf.h>])
 AC_CHECK_TYPES([struct loop_config],,,[#include <linux/loop.h>])
+AC_CHECK_TYPES([struct landlock_ruleset_attr],,,[#include <linux/landlock.h>])
+AC_CHECK_TYPES([struct landlock_path_beneath_attr],,,[#include <linux/landlock.h>])
+AC_CHECK_TYPES([struct landlock_net_port_attr],,,[#include <linux/landlock.h>])
 
 AC_CHECK_TYPES([struct mmsghdr],,,[
 #define _GNU_SOURCE
diff --git a/include/lapi/landlock.h b/include/lapi/landlock.h
new file mode 100644
index 000000000..2ee51b340
--- /dev/null
+++ b/include/lapi/landlock.h
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2024 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+#ifndef LAPI_LANDLOCK_H__
+#define LAPI_LANDLOCK_H__
+
+#include "config.h"
+
+#ifdef HAVE_LINUX_LANDLOCK_H
+# include <linux/landlock.h>
+#endif
+
+#ifndef HAVE_STRUCT_LANDLOCK_RULESET_ATTR
+struct landlock_ruleset_attr
+{
+	uint64_t handled_access_fs;
+	uint64_t handled_access_net;
+};
+#endif
+
+#ifndef HAVE_STRUCT_LANDLOCK_PATH_BENEATH_ATTR
+struct landlock_path_beneath_attr
+{
+	uint64_t allowed_access;
+	int32_t parent_fd;
+} __attribute__((packed));
+#endif
+
+#ifndef HAVE_ENUM_LANDLOCK_RULE_TYPE
+enum landlock_rule_type
+{
+	LANDLOCK_RULE_PATH_BENEATH = 1,
+	LANDLOCK_RULE_NET_PORT,
+};
+#endif
+
+#ifndef HAVE_STRUCT_LANDLOCK_NET_PORT_ATTR
+struct landlock_net_port_attr
+{
+	uint64_t allowed_access;
+	uint64_t port;
+};
+#endif
+
+#ifndef LANDLOCK_CREATE_RULESET_VERSION
+# define LANDLOCK_CREATE_RULESET_VERSION	(1U << 0)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_EXECUTE
+# define LANDLOCK_ACCESS_FS_EXECUTE			(1ULL << 0)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_WRITE_FILE
+# define LANDLOCK_ACCESS_FS_WRITE_FILE		(1ULL << 1)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_READ_FILE
+# define LANDLOCK_ACCESS_FS_READ_FILE		(1ULL << 2)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_READ_DIR
+# define LANDLOCK_ACCESS_FS_READ_DIR		(1ULL << 3)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_REMOVE_DIR
+# define LANDLOCK_ACCESS_FS_REMOVE_DIR		(1ULL << 4)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_REMOVE_FILE
+# define LANDLOCK_ACCESS_FS_REMOVE_FILE		(1ULL << 5)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_CHAR
+# define LANDLOCK_ACCESS_FS_MAKE_CHAR		(1ULL << 6)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_DIR
+# define LANDLOCK_ACCESS_FS_MAKE_DIR		(1ULL << 7)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_REG
+# define LANDLOCK_ACCESS_FS_MAKE_REG		(1ULL << 8)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_SOCK
+# define LANDLOCK_ACCESS_FS_MAKE_SOCK		(1ULL << 9)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_FIFO
+# define LANDLOCK_ACCESS_FS_MAKE_FIFO		(1ULL << 10)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_BLOCK
+# define LANDLOCK_ACCESS_FS_MAKE_BLOCK		(1ULL << 11)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_MAKE_SYM
+# define LANDLOCK_ACCESS_FS_MAKE_SYM		(1ULL << 12)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_REFER
+# define LANDLOCK_ACCESS_FS_REFER			(1ULL << 13)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_TRUNCATE
+# define LANDLOCK_ACCESS_FS_TRUNCATE		(1ULL << 14)
+#endif
+
+#ifndef LANDLOCK_ACCESS_FS_IOCTL_DEV
+# define LANDLOCK_ACCESS_FS_IOCTL_DEV		(1ULL << 15)
+#endif
+
+#ifndef LANDLOCK_ACCESS_NET_BIND_TCP
+# define LANDLOCK_ACCESS_NET_BIND_TCP		(1ULL << 0)
+#endif
+
+#ifndef LANDLOCK_ACCESS_NET_CONNECT_TCP
+# define LANDLOCK_ACCESS_NET_CONNECT_TCP	(1ULL << 1)
+#endif
+
+#endif

-- 
2.43.0