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Diffstat (limited to 'pkg/bpf/decoder_test.go')
| -rw-r--r-- | pkg/bpf/decoder_test.go | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/pkg/bpf/decoder_test.go b/pkg/bpf/decoder_test.go deleted file mode 100644 index 6a023f0c0..000000000 --- a/pkg/bpf/decoder_test.go +++ /dev/null @@ -1,146 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package bpf - -import ( - "testing" - - "gvisor.dev/gvisor/pkg/abi/linux" -) - -func TestDecode(t *testing.T) { - for _, test := range []struct { - filter linux.BPFInstruction - expected string - fail bool - }{ - {filter: Stmt(Ld+Imm, 10), expected: "A <- 10"}, - {filter: Stmt(Ld+Abs+W, 10), expected: "A <- P[10:4]"}, - {filter: Stmt(Ld+Ind+H, 10), expected: "A <- P[X+10:2]"}, - {filter: Stmt(Ld+Ind+B, 10), expected: "A <- P[X+10:1]"}, - {filter: Stmt(Ld+Mem, 10), expected: "A <- M[10]"}, - {filter: Stmt(Ld+Len, 0), expected: "A <- len"}, - {filter: Stmt(Ldx+Imm, 10), expected: "X <- 10"}, - {filter: Stmt(Ldx+Mem, 10), expected: "X <- M[10]"}, - {filter: Stmt(Ldx+Len, 0), expected: "X <- len"}, - {filter: Stmt(Ldx+Msh, 10), expected: "X <- 4*(P[10:1]&0xf)"}, - {filter: Stmt(St, 10), expected: "M[10] <- A"}, - {filter: Stmt(Stx, 10), expected: "M[10] <- X"}, - {filter: Stmt(Alu+Add+K, 10), expected: "A <- A + 10"}, - {filter: Stmt(Alu+Sub+K, 10), expected: "A <- A - 10"}, - {filter: Stmt(Alu+Mul+K, 10), expected: "A <- A * 10"}, - {filter: Stmt(Alu+Div+K, 10), expected: "A <- A / 10"}, - {filter: Stmt(Alu+Or+K, 10), expected: "A <- A | 10"}, - {filter: Stmt(Alu+And+K, 10), expected: "A <- A & 10"}, - {filter: Stmt(Alu+Lsh+K, 10), expected: "A <- A << 10"}, - {filter: Stmt(Alu+Rsh+K, 10), expected: "A <- A >> 10"}, - {filter: Stmt(Alu+Mod+K, 10), expected: "A <- A % 10"}, - {filter: Stmt(Alu+Xor+K, 10), expected: "A <- A ^ 10"}, - {filter: Stmt(Alu+Add+X, 0), expected: "A <- A + X"}, - {filter: Stmt(Alu+Sub+X, 0), expected: "A <- A - X"}, - {filter: Stmt(Alu+Mul+X, 0), expected: "A <- A * X"}, - {filter: Stmt(Alu+Div+X, 0), expected: "A <- A / X"}, - {filter: Stmt(Alu+Or+X, 0), expected: "A <- A | X"}, - {filter: Stmt(Alu+And+X, 0), expected: "A <- A & X"}, - {filter: Stmt(Alu+Lsh+X, 0), expected: "A <- A << X"}, - {filter: Stmt(Alu+Rsh+X, 0), expected: "A <- A >> X"}, - {filter: Stmt(Alu+Mod+X, 0), expected: "A <- A % X"}, - {filter: Stmt(Alu+Xor+X, 0), expected: "A <- A ^ X"}, - {filter: Stmt(Alu+Neg, 0), expected: "A <- -A"}, - {filter: Stmt(Jmp+Ja, 10), expected: "pc += 10"}, - {filter: Jump(Jmp+Jeq+K, 10, 2, 5), expected: "pc += (A == 10) ? 2 : 5"}, - {filter: Jump(Jmp+Jgt+K, 10, 2, 5), expected: "pc += (A > 10) ? 2 : 5"}, - {filter: Jump(Jmp+Jge+K, 10, 2, 5), expected: "pc += (A >= 10) ? 2 : 5"}, - {filter: Jump(Jmp+Jset+K, 10, 2, 5), expected: "pc += (A & 10) ? 2 : 5"}, - {filter: Jump(Jmp+Jeq+X, 0, 2, 5), expected: "pc += (A == X) ? 2 : 5"}, - {filter: Jump(Jmp+Jgt+X, 0, 2, 5), expected: "pc += (A > X) ? 2 : 5"}, - {filter: Jump(Jmp+Jge+X, 0, 2, 5), expected: "pc += (A >= X) ? 2 : 5"}, - {filter: Jump(Jmp+Jset+X, 0, 2, 5), expected: "pc += (A & X) ? 2 : 5"}, - {filter: Stmt(Ret+K, 10), expected: "ret 10"}, - {filter: Stmt(Ret+A, 0), expected: "ret A"}, - {filter: Stmt(Misc+Tax, 0), expected: "X <- A"}, - {filter: Stmt(Misc+Txa, 0), expected: "A <- X"}, - {filter: Stmt(Ld+Ind+Msh, 0), fail: true}, - } { - got, err := Decode(test.filter) - if test.fail { - if err == nil { - t.Errorf("Decode(%v) failed, expected: 'error', got: %q", test.filter, got) - continue - } - } else { - if err != nil { - t.Errorf("Decode(%v) failed for test %q, error: %q", test.filter, test.expected, err) - continue - } - if got != test.expected { - t.Errorf("Decode(%v) failed, expected: %q, got: %q", test.filter, test.expected, got) - continue - } - } - } -} - -func TestDecodeProgram(t *testing.T) { - for _, test := range []struct { - name string - program []linux.BPFInstruction - expected string - fail bool - }{ - {name: "basic with jump indexes", - program: []linux.BPFInstruction{ - Stmt(Ld+Abs+W, 10), - Stmt(Ldx+Mem, 10), - Stmt(St, 10), - Stmt(Stx, 10), - Stmt(Alu+Add+K, 10), - Stmt(Jmp+Ja, 10), - Jump(Jmp+Jeq+K, 10, 2, 5), - Jump(Jmp+Jset+X, 0, 0, 5), - Stmt(Misc+Tax, 0), - }, - expected: "0: A <- P[10:4]\n" + - "1: X <- M[10]\n" + - "2: M[10] <- A\n" + - "3: M[10] <- X\n" + - "4: A <- A + 10\n" + - "5: pc += 10 [16]\n" + - "6: pc += (A == 10) ? 2 [9] : 5 [12]\n" + - "7: pc += (A & X) ? 0 [8] : 5 [13]\n" + - "8: X <- A\n", - }, - {name: "invalid instruction", - program: []linux.BPFInstruction{Stmt(Ld+Abs+W, 10), Stmt(Ld+Len+Mem, 0)}, - fail: true}, - } { - got, err := DecodeProgram(test.program) - if test.fail { - if err == nil { - t.Errorf("%s: Decode(...) failed, expected: 'error', got: %q", test.name, got) - continue - } - } else { - if err != nil { - t.Errorf("%s: Decode failed: %v", test.name, err) - continue - } - if got != test.expected { - t.Errorf("%s: Decode(...) failed, expected: %q, got: %q", test.name, test.expected, got) - continue - } - } - } -} |