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authorThomas Zimmermann <[email protected]>2023-10-11 09:50:59 +0200
committerThomas Zimmermann <[email protected]>2023-10-11 09:50:59 +0200
commit57390019b68b83f96eb98f490367b9df1f2d77cb (patch)
treee6d4b6c75efdd2d7fb7d37f980688c491be3ff6a /tools/testing/selftests/bpf/progs/test_ptr_untrusted.c
parente5f9d543419c78ac58f3b3557bc5a76b20ff600b (diff)
parent389af786f92ecdff35883551d54bf4e507ffcccb (diff)
Merge drm/drm-next into drm-misc-next
Updating drm-misc-next to the state of Linux v6.6-rc2. Signed-off-by: Thomas Zimmermann <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_ptr_untrusted.c')
-rw-r--r--tools/testing/selftests/bpf/progs/test_ptr_untrusted.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_ptr_untrusted.c b/tools/testing/selftests/bpf/progs/test_ptr_untrusted.c
new file mode 100644
index 000000000000..4bdd65b5aa2d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ptr_untrusted.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <[email protected]> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+
+char tp_name[128];
+
+SEC("lsm/bpf")
+int BPF_PROG(lsm_run, int cmd, union bpf_attr *attr, unsigned int size)
+{
+ switch (cmd) {
+ case BPF_RAW_TRACEPOINT_OPEN:
+ bpf_probe_read_user_str(tp_name, sizeof(tp_name) - 1,
+ (void *)attr->raw_tracepoint.name);
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+SEC("raw_tracepoint")
+int BPF_PROG(raw_tp_run)
+{
+ return 0;
+}
+
+char _license[] SEC("license") = "GPL";