1 files changed, 14 insertions, 35 deletions

diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 8b9949bb833d..e4657c5bc3f1 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -33,13 +33,8 @@
 #include <bpf/bpf.h>
 #include <bpf/libbpf.h>
 
-#ifdef HAVE_GENHDR
-# include "autoconf.h"
-#else
-# if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__)
-#  define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1
-# endif
-#endif
+#include "autoconf_helper.h"
+#include "unpriv_helpers.h"
 #include "cap_helpers.h"
 #include "bpf_rand.h"
 #include "bpf_util.h"
@@ -699,13 +694,13 @@ static int create_cgroup_storage(bool percpu)
  *   struct bpf_timer t;
  * };
  * struct btf_ptr {
+ *   struct prog_test_ref_kfunc __kptr_untrusted *ptr;
  *   struct prog_test_ref_kfunc __kptr *ptr;
- *   struct prog_test_ref_kfunc __kptr_ref *ptr;
- *   struct prog_test_member __kptr_ref *ptr;
+ *   struct prog_test_member __kptr *ptr;
  * }
  */
 static const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l\0bpf_timer\0timer\0t"
-				  "\0btf_ptr\0prog_test_ref_kfunc\0ptr\0kptr\0kptr_ref"
+				  "\0btf_ptr\0prog_test_ref_kfunc\0ptr\0kptr\0kptr_untrusted"
 				  "\0prog_test_member";
 static __u32 btf_raw_types[] = {
 	/* int */
@@ -724,20 +719,20 @@ static __u32 btf_raw_types[] = {
 	BTF_MEMBER_ENC(41, 4, 0), /* struct bpf_timer t; */
 	/* struct prog_test_ref_kfunc */		/* [6] */
 	BTF_STRUCT_ENC(51, 0, 0),
-	BTF_STRUCT_ENC(89, 0, 0),			/* [7] */
+	BTF_STRUCT_ENC(95, 0, 0),			/* [7] */
+	/* type tag "kptr_untrusted" */
+	BTF_TYPE_TAG_ENC(80, 6),			/* [8] */
 	/* type tag "kptr" */
-	BTF_TYPE_TAG_ENC(75, 6),			/* [8] */
-	/* type tag "kptr_ref" */
-	BTF_TYPE_TAG_ENC(80, 6),			/* [9] */
-	BTF_TYPE_TAG_ENC(80, 7),			/* [10] */
+	BTF_TYPE_TAG_ENC(75, 6),			/* [9] */
+	BTF_TYPE_TAG_ENC(75, 7),			/* [10] */
 	BTF_PTR_ENC(8),					/* [11] */
 	BTF_PTR_ENC(9),					/* [12] */
 	BTF_PTR_ENC(10),				/* [13] */
 	/* struct btf_ptr */				/* [14] */
 	BTF_STRUCT_ENC(43, 3, 24),
-	BTF_MEMBER_ENC(71, 11, 0), /* struct prog_test_ref_kfunc __kptr *ptr; */
-	BTF_MEMBER_ENC(71, 12, 64), /* struct prog_test_ref_kfunc __kptr_ref *ptr; */
-	BTF_MEMBER_ENC(71, 13, 128), /* struct prog_test_member __kptr_ref *ptr; */
+	BTF_MEMBER_ENC(71, 11, 0), /* struct prog_test_ref_kfunc __kptr_untrusted *ptr; */
+	BTF_MEMBER_ENC(71, 12, 64), /* struct prog_test_ref_kfunc __kptr *ptr; */
+	BTF_MEMBER_ENC(71, 13, 128), /* struct prog_test_member __kptr *ptr; */
 };
 
 static char bpf_vlog[UINT_MAX >> 8];
@@ -1084,7 +1079,7 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
 	}
 	if (*fixup_map_ringbuf) {
 		map_fds[20] = create_map(BPF_MAP_TYPE_RINGBUF, 0,
-					   0, 4096);
+					 0, getpagesize());
 		do {
 			prog[*fixup_map_ringbuf].imm = map_fds[20];
 			fixup_map_ringbuf++;
@@ -1665,22 +1660,6 @@ static bool is_admin(void)
 	return (caps & ADMIN_CAPS) == ADMIN_CAPS;
 }
 
-static void get_unpriv_disabled()
-{
-	char buf[2];
-	FILE *fd;
-
-	fd = fopen("/proc/sys/"UNPRIV_SYSCTL, "r");
-	if (!fd) {
-		perror("fopen /proc/sys/"UNPRIV_SYSCTL);
-		unpriv_disabled = true;
-		return;
-	}
-	if (fgets(buf, 2, fd) == buf && atoi(buf))
-		unpriv_disabled = true;
-	fclose(fd);
-}
-
 static bool test_as_unpriv(struct bpf_test *test)
 {
 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS