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[4093] Support for option[123].hex operator.

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This commit is contained in:
Marcin Siodelski 2015-11-19 15:58:16 +01:00
parent eb932d6809
commit 00effa23d3
3 changed files with 35 additions and 0 deletions
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6
src/lib/eval/parser.yy
View File

@ -123,6 +123,12 @@ string_expr : STRING
TokenPtr opt(new TokenOption(numeric_code, TokenOption::TEXTUAL));
ctx.expression.push_back(opt);
}
| OPTION "[" INTEGER "]" DOTHEX
{
uint16_t numeric_code = convert_option_code($3, @3, ctx);
TokenPtr opt(new TokenOption(numeric_code, TokenOption::HEXADECIMAL));
ctx.expression.push_back(opt);
}
| SUBSTRING "(" string_expr "," start_expr "," length_expr ")"
{
TokenPtr sub(new TokenSubstring());

10
src/lib/eval/tests/context_unittest.cc
View File

@ -209,6 +209,16 @@ TEST_F(EvalContextTest, option) {
checkTokenOption(eval.expression.at(0), 123);
}
// Test parsing of an option represented as hexadecimal string.
TEST_F(EvalContextTest, optionHex) {
EvalContext eval;
EXPECT_NO_THROW(parsed_ = eval.parseString("option[123].hex == 0x666F6F"));
EXPECT_TRUE(parsed_);
ASSERT_EQ(3, eval.expression.size());
checkTokenOption(eval.expression.at(0), 123);
}
// Test the parsing of a substring expression
TEST_F(EvalContextTest, substring) {
EvalContext eval;

19
src/lib/eval/tests/evaluate_unittest.cc
View File

@ -209,6 +209,25 @@ TEST_F(EvaluateTest, packet) {
EXPECT_FALSE(result_);
}
// A test which compares option value represented in hexadecimal format.
TEST_F(EvaluateTest, optionHex) {
TokenPtr toption;
TokenPtr tstring;
TokenPtr tequal;
ASSERT_NO_THROW(toption.reset(new TokenOption(100, TokenOption::HEXADECIMAL)));
e_.push_back(toption);
ASSERT_NO_THROW(tstring.reset(new TokenString("0x68756E6472656434")));
e_.push_back(tstring);
ASSERT_NO_THROW(tequal.reset(new TokenEqual()));
e_.push_back(tequal);
ASSERT_NO_THROW(result_ = evaluate(e_, *pkt4_));
EXPECT_TRUE(result_);
ASSERT_NO_THROW(result_ = evaluate(e_, *pkt6_));
EXPECT_FALSE(result_);
}
// A test using substring on an option.
TEST_F(EvaluateTest, complex) {
TokenPtr toption;