diff options
Diffstat (limited to 'kernel/bpf/test_stub.c')
| -rw-r--r-- | kernel/bpf/test_stub.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/kernel/bpf/test_stub.c b/kernel/bpf/test_stub.c deleted file mode 100644 index 0ceae1e6e8b5..000000000000 --- a/kernel/bpf/test_stub.c +++ /dev/null | |||
| @@ -1,78 +0,0 @@ | |||
| 1 | /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com | ||
| 2 | * | ||
| 3 | * This program is free software; you can redistribute it and/or | ||
| 4 | * modify it under the terms of version 2 of the GNU General Public | ||
| 5 | * License as published by the Free Software Foundation. | ||
| 6 | */ | ||
| 7 | #include <linux/kernel.h> | ||
| 8 | #include <linux/types.h> | ||
| 9 | #include <linux/slab.h> | ||
| 10 | #include <linux/err.h> | ||
| 11 | #include <linux/bpf.h> | ||
| 12 | |||
| 13 | /* test stubs for BPF_MAP_TYPE_UNSPEC and for BPF_PROG_TYPE_UNSPEC | ||
| 14 | * to be used by user space verifier testsuite | ||
| 15 | */ | ||
| 16 | struct bpf_context { | ||
| 17 | u64 arg1; | ||
| 18 | u64 arg2; | ||
| 19 | }; | ||
| 20 | |||
| 21 | static const struct bpf_func_proto *test_func_proto(enum bpf_func_id func_id) | ||
| 22 | { | ||
| 23 | switch (func_id) { | ||
| 24 | case BPF_FUNC_map_lookup_elem: | ||
| 25 | return &bpf_map_lookup_elem_proto; | ||
| 26 | case BPF_FUNC_map_update_elem: | ||
| 27 | return &bpf_map_update_elem_proto; | ||
| 28 | case BPF_FUNC_map_delete_elem: | ||
| 29 | return &bpf_map_delete_elem_proto; | ||
| 30 | default: | ||
| 31 | return NULL; | ||
| 32 | } | ||
| 33 | } | ||
| 34 | |||
| 35 | static const struct bpf_context_access { | ||
| 36 | int size; | ||
| 37 | enum bpf_access_type type; | ||
| 38 | } test_ctx_access[] = { | ||
| 39 | [offsetof(struct bpf_context, arg1)] = { | ||
| 40 | FIELD_SIZEOF(struct bpf_context, arg1), | ||
| 41 | BPF_READ | ||
| 42 | }, | ||
| 43 | [offsetof(struct bpf_context, arg2)] = { | ||
| 44 | FIELD_SIZEOF(struct bpf_context, arg2), | ||
| 45 | BPF_READ | ||
| 46 | }, | ||
| 47 | }; | ||
| 48 | |||
| 49 | static bool test_is_valid_access(int off, int size, enum bpf_access_type type) | ||
| 50 | { | ||
| 51 | const struct bpf_context_access *access; | ||
| 52 | |||
| 53 | if (off < 0 || off >= ARRAY_SIZE(test_ctx_access)) | ||
| 54 | return false; | ||
| 55 | |||
| 56 | access = &test_ctx_access[off]; | ||
| 57 | if (access->size == size && (access->type & type)) | ||
| 58 | return true; | ||
| 59 | |||
| 60 | return false; | ||
| 61 | } | ||
| 62 | |||
| 63 | static struct bpf_verifier_ops test_ops = { | ||
| 64 | .get_func_proto = test_func_proto, | ||
| 65 | .is_valid_access = test_is_valid_access, | ||
| 66 | }; | ||
| 67 | |||
| 68 | static struct bpf_prog_type_list tl_prog = { | ||
| 69 | .ops = &test_ops, | ||
| 70 | .type = BPF_PROG_TYPE_UNSPEC, | ||
| 71 | }; | ||
| 72 | |||
| 73 | static int __init register_test_ops(void) | ||
| 74 | { | ||
| 75 | bpf_register_prog_type(&tl_prog); | ||
| 76 | return 0; | ||
| 77 | } | ||
| 78 | late_initcall(register_test_ops); | ||
