Mike Frysinger | 50e31fa | 2018-01-19 18:59:49 -0500 | [diff] [blame] | 1 | /* Copyright 2016 The Chromium OS Authors. All rights reserved. |
| 2 | * Use of this source code is governed by a BSD-style license that can be |
| 3 | * found in the LICENSE file. |
Jorge Lucangeli Obes | 106d97f | 2016-08-19 12:34:02 -0400 | [diff] [blame] | 4 | */ |
| 5 | |
Jorge Lucangeli Obes | 32201f8 | 2019-06-12 14:45:06 -0400 | [diff] [blame] | 6 | #ifndef SYSCALL_FILTER_UNITTEST_MACROS_H |
| 7 | #define SYSCALL_FILTER_UNITTEST_MACROS_H |
| 8 | |
| 9 | #include "bpf.h" |
| 10 | |
Jorge Lucangeli Obes | 106d97f | 2016-08-19 12:34:02 -0400 | [diff] [blame] | 11 | /* BPF testing macros. */ |
| 12 | #define EXPECT_EQ_BLOCK(_block, _code, _k, _jt, _jf) \ |
| 13 | do { \ |
| 14 | EXPECT_EQ((_block)->code, _code); \ |
| 15 | EXPECT_EQ((_block)->k, (unsigned int)(_k)); \ |
| 16 | EXPECT_EQ((_block)->jt, _jt); \ |
| 17 | EXPECT_EQ((_block)->jf, _jf); \ |
| 18 | } while (0) |
| 19 | |
| 20 | #define EXPECT_EQ_STMT(_block, _code, _k) \ |
| 21 | EXPECT_EQ_BLOCK(_block, _code, _k, 0, 0) |
| 22 | |
| 23 | #define EXPECT_COMP(_block) \ |
| 24 | do { \ |
| 25 | EXPECT_EQ((_block)->len, BPF_ARG_COMP_LEN + 1); \ |
| 26 | EXPECT_EQ((_block)->instrs->code, BPF_LD+BPF_W+BPF_ABS); \ |
| 27 | } while (0) |
| 28 | |
Luis Hector Chavez | 1c93783 | 2018-07-21 22:45:47 -0700 | [diff] [blame] | 29 | #define EXPECT_GT_GE_COMP(_block) \ |
| 30 | do { \ |
| 31 | EXPECT_EQ((_block)->len, BPF_ARG_GT_GE_COMP_LEN + 1); \ |
| 32 | EXPECT_EQ((_block)->instrs->code, BPF_LD+BPF_W+BPF_ABS); \ |
| 33 | } while (0) |
| 34 | |
Luis Hector Chavez | 136adca | 2018-07-21 22:45:56 -0700 | [diff] [blame] | 35 | #define EXPECT_SHORT_GT_GE_COMP(_block) \ |
| 36 | do { \ |
| 37 | EXPECT_EQ((_block)->len, BPF_ARG_SHORT_GT_GE_COMP_LEN + 1); \ |
| 38 | EXPECT_EQ((_block)->instrs->code, BPF_LD+BPF_W+BPF_ABS); \ |
| 39 | } while (0) |
| 40 | |
Jorge Lucangeli Obes | 106d97f | 2016-08-19 12:34:02 -0400 | [diff] [blame] | 41 | #define EXPECT_LBL(_block) \ |
| 42 | do { \ |
| 43 | EXPECT_TRUE((_block)->code == (BPF_JMP+BPF_JA)); \ |
| 44 | EXPECT_TRUE((_block)->jt == LABEL_JT); \ |
| 45 | EXPECT_TRUE((_block)->jf == LABEL_JF); \ |
| 46 | } while (0) |
| 47 | |
Jorge Lucangeli Obes | 45932a5 | 2017-03-15 17:02:58 -0400 | [diff] [blame] | 48 | #define EXPECT_ACTUAL_LBL(_block, _id) \ |
| 49 | do { \ |
| 50 | EXPECT_TRUE((_block)->code == (BPF_JMP+BPF_JA)); \ |
| 51 | EXPECT_TRUE((_block)->k == (_id)); \ |
| 52 | EXPECT_TRUE((_block)->jt == LABEL_JT); \ |
| 53 | EXPECT_TRUE((_block)->jf == LABEL_JF); \ |
| 54 | } while (0) |
| 55 | |
Jorge Lucangeli Obes | 106d97f | 2016-08-19 12:34:02 -0400 | [diff] [blame] | 56 | #define EXPECT_JUMP_LBL(_block) \ |
| 57 | do { \ |
| 58 | EXPECT_EQ((_block)->code, BPF_JMP+BPF_JA); \ |
| 59 | EXPECT_EQ((_block)->jt, JUMP_JT); \ |
| 60 | EXPECT_EQ((_block)->jf, JUMP_JF); \ |
| 61 | } while (0) |
| 62 | |
| 63 | #define EXPECT_GROUP_END(_block) \ |
| 64 | do { \ |
| 65 | EXPECT_EQ((_block)->len, 2U); \ |
| 66 | EXPECT_JUMP_LBL(&(_block)->instrs[0]); \ |
| 67 | EXPECT_LBL(&(_block)->instrs[1]); \ |
| 68 | } while (0) |
| 69 | |
| 70 | #define EXPECT_KILL(_block) \ |
| 71 | do { \ |
| 72 | EXPECT_EQ((_block)->len, 1U); \ |
| 73 | EXPECT_EQ_STMT((_block)->instrs, \ |
| 74 | BPF_RET+BPF_K, SECCOMP_RET_KILL); \ |
| 75 | } while (0) |
| 76 | |
| 77 | #define EXPECT_TRAP(_block) \ |
| 78 | do { \ |
| 79 | EXPECT_EQ((_block)->len, 1U); \ |
| 80 | EXPECT_EQ_STMT((_block)->instrs, \ |
| 81 | BPF_RET+BPF_K, SECCOMP_RET_TRAP); \ |
| 82 | } while (0) |
| 83 | |
Jorge Lucangeli Obes | 32201f8 | 2019-06-12 14:45:06 -0400 | [diff] [blame] | 84 | #define EXPECT_LOG(_block) \ |
| 85 | do { \ |
| 86 | EXPECT_EQ((_block)->len, 1U); \ |
| 87 | EXPECT_EQ_STMT((_block)->instrs, \ |
| 88 | BPF_RET+BPF_K, SECCOMP_RET_LOG); \ |
| 89 | } while (0) |
| 90 | |
Jorge Lucangeli Obes | 106d97f | 2016-08-19 12:34:02 -0400 | [diff] [blame] | 91 | #define EXPECT_ALLOW(_block) \ |
| 92 | do { \ |
| 93 | EXPECT_EQ((_block)->len, 2U); \ |
| 94 | EXPECT_LBL(&(_block)->instrs[0]); \ |
| 95 | EXPECT_EQ_STMT(&(_block)->instrs[1], \ |
| 96 | BPF_RET+BPF_K, SECCOMP_RET_ALLOW); \ |
| 97 | } while (0) |
| 98 | |
| 99 | #define EXPECT_ARCH_VALIDATION(_filter) \ |
| 100 | do { \ |
| 101 | EXPECT_EQ_STMT(&(_filter)[0], BPF_LD+BPF_W+BPF_ABS, arch_nr); \ |
| 102 | EXPECT_EQ_BLOCK(&(_filter)[1], \ |
| 103 | BPF_JMP+BPF_JEQ+BPF_K, ARCH_NR, SKIP, NEXT); \ |
| 104 | EXPECT_EQ_STMT(&(_filter)[2], BPF_RET+BPF_K, SECCOMP_RET_KILL); \ |
| 105 | } while (0) |
| 106 | |
| 107 | #define EXPECT_ALLOW_SYSCALL(_filter, _nr) \ |
| 108 | do { \ |
| 109 | EXPECT_EQ_BLOCK(&(_filter)[0], \ |
| 110 | BPF_JMP+BPF_JEQ+BPF_K, (_nr), NEXT, SKIP); \ |
| 111 | EXPECT_EQ_STMT(&(_filter)[1], \ |
| 112 | BPF_RET+BPF_K, SECCOMP_RET_ALLOW); \ |
| 113 | } while (0) |
| 114 | |
| 115 | #define EXPECT_ALLOW_SYSCALL_ARGS(_filter, _nr, _id, _jt, _jf) \ |
| 116 | do { \ |
| 117 | EXPECT_EQ_BLOCK(&(_filter)[0], \ |
| 118 | BPF_JMP+BPF_JEQ+BPF_K, (_nr), NEXT, SKIP); \ |
| 119 | EXPECT_EQ_BLOCK(&(_filter)[1], \ |
| 120 | BPF_JMP+BPF_JA, (_id), (_jt), (_jf)); \ |
| 121 | } while (0) |
Jorge Lucangeli Obes | 32201f8 | 2019-06-12 14:45:06 -0400 | [diff] [blame] | 122 | |
| 123 | #endif // SYSCALL_FILTER_UNITTEST_MACROS_H |