summaryrefslogtreecommitdiff
path: root/kernel/bpf/bpf_lsm.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/bpf/bpf_lsm.c')
-rw-r--r--kernel/bpf/bpf_lsm.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c
index c5c925f00202..1433809bb166 100644
--- a/kernel/bpf/bpf_lsm.c
+++ b/kernel/bpf/bpf_lsm.c
@@ -51,6 +51,9 @@ BTF_ID(func, bpf_lsm_key_getsecurity)
#ifdef CONFIG_AUDIT
BTF_ID(func, bpf_lsm_audit_rule_match)
#endif
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+BTF_ID(func, bpf_lsm_xfrm_decode_session)
+#endif
BTF_ID(func, bpf_lsm_ismaclabel)
BTF_ID(func, bpf_lsm_file_alloc_security)
BTF_SET_END(bpf_lsm_disabled_hooks)
@@ -427,6 +430,26 @@ BTF_ID(func, bpf_lsm_audit_rule_known)
BTF_ID(func, bpf_lsm_inode_xattr_skipcap)
BTF_SET_END(bool_lsm_hooks)
+/* hooks returning void */
+#define LSM_HOOK_void(DEFAULT, NAME, ...) BTF_ID(func, bpf_lsm_##NAME)
+#define LSM_HOOK_int(DEFAULT, NAME, ...) /* nothing */
+#define LSM_HOOK(RET, DEFAULT, NAME, ...) LSM_HOOK_##RET(DEFAULT, NAME, __VA_ARGS__)
+BTF_SET_START(void_lsm_hooks)
+#include <linux/lsm_hook_defs.h>
+#undef LSM_HOOK
+#undef LSM_HOOK_void
+#undef LSM_HOOK_int
+BTF_SET_END(void_lsm_hooks)
+
+bool bpf_lsm_hook_returns_errno(u32 btf_id)
+{
+ if (btf_id_set_contains(&bool_lsm_hooks, btf_id))
+ return false;
+ if (btf_id_set_contains(&void_lsm_hooks, btf_id))
+ return false;
+ return true;
+}
+
int bpf_lsm_get_retval_range(const struct bpf_prog *prog,
struct bpf_retval_range *retval_range)
{