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Diffstat (limited to 'tools/testing/selftests/bpf/progs/lsm.c')
-rw-r--r--tools/testing/selftests/bpf/progs/lsm.c81
1 files changed, 76 insertions, 5 deletions
diff --git a/tools/testing/selftests/bpf/progs/lsm.c b/tools/testing/selftests/bpf/progs/lsm.c
index ff4d343b94b5..0c13b7409947 100644
--- a/tools/testing/selftests/bpf/progs/lsm.c
+++ b/tools/testing/selftests/bpf/progs/lsm.c
@@ -5,9 +5,11 @@
*/
#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_core_read.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
-#include <errno.h>
+#include "bpf_misc.h"
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
@@ -30,6 +32,53 @@ struct {
__type(value, __u64);
} lru_hash SEC(".maps");
+struct {
+ __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+ __uint(max_entries, 1);
+ __type(key, __u32);
+ __type(value, __u64);
+} percpu_array SEC(".maps");
+
+struct {
+ __uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+ __uint(max_entries, 1);
+ __type(key, __u32);
+ __type(value, __u64);
+} percpu_hash SEC(".maps");
+
+struct {
+ __uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH);
+ __uint(max_entries, 1);
+ __type(key, __u32);
+ __type(value, __u64);
+} lru_percpu_hash SEC(".maps");
+
+struct inner_map {
+ __uint(type, BPF_MAP_TYPE_ARRAY);
+ __uint(max_entries, 1);
+ __type(key, int);
+ __type(value, __u64);
+} inner_map SEC(".maps");
+
+struct outer_arr {
+ __uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+ __uint(max_entries, 1);
+ __uint(key_size, sizeof(int));
+ __uint(value_size, sizeof(int));
+ __array(values, struct inner_map);
+} outer_arr SEC(".maps") = {
+ .values = { [0] = &inner_map },
+};
+
+struct outer_hash {
+ __uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+ __uint(max_entries, 1);
+ __uint(key_size, sizeof(int));
+ __array(values, struct inner_map);
+} outer_hash SEC(".maps") = {
+ .values = { [0] = &inner_map },
+};
+
char _license[] SEC("license") = "GPL";
int monitored_pid = 0;
@@ -43,7 +92,7 @@ int BPF_PROG(test_int_hook, struct vm_area_struct *vma,
if (ret != 0)
return ret;
- __u32 pid = bpf_get_current_pid_tgid() >> 32;
+ __s32 pid = bpf_get_current_pid_tgid() >> 32;
int is_stack = 0;
is_stack = (vma->vm_start <= vma->vm_mm->start_stack &&
@@ -61,6 +110,7 @@ SEC("lsm.s/bprm_committed_creds")
int BPF_PROG(test_void_hook, struct linux_binprm *bprm)
{
__u32 pid = bpf_get_current_pid_tgid() >> 32;
+ struct inner_map *inner_map;
char args[64];
__u32 key = 0;
__u64 *value;
@@ -80,6 +130,27 @@ int BPF_PROG(test_void_hook, struct linux_binprm *bprm)
value = bpf_map_lookup_elem(&lru_hash, &key);
if (value)
*value = 0;
+ value = bpf_map_lookup_elem(&percpu_array, &key);
+ if (value)
+ *value = 0;
+ value = bpf_map_lookup_elem(&percpu_hash, &key);
+ if (value)
+ *value = 0;
+ value = bpf_map_lookup_elem(&lru_percpu_hash, &key);
+ if (value)
+ *value = 0;
+ inner_map = bpf_map_lookup_elem(&outer_arr, &key);
+ if (inner_map) {
+ value = bpf_map_lookup_elem(inner_map, &key);
+ if (value)
+ *value = 0;
+ }
+ inner_map = bpf_map_lookup_elem(&outer_hash, &key);
+ if (inner_map) {
+ value = bpf_map_lookup_elem(inner_map, &key);
+ if (value)
+ *value = 0;
+ }
return 0;
}
@@ -91,11 +162,11 @@ int BPF_PROG(test_task_free, struct task_struct *task)
int copy_test = 0;
-SEC("fentry.s/__x64_sys_setdomainname")
+SEC("fentry.s/" SYS_PREFIX "sys_setdomainname")
int BPF_PROG(test_sys_setdomainname, struct pt_regs *regs)
{
- void *ptr = (void *)PT_REGS_PARM1(regs);
- int len = PT_REGS_PARM2(regs);
+ void *ptr = (void *)PT_REGS_PARM1_SYSCALL(regs);
+ int len = PT_REGS_PARM2_SYSCALL(regs);
int buf = 0;
long ret;