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* check: Move wdt_ib700 test to commonJuan Quintela2018-08-271-2/+2
| | | | | | | It is protected by CONFIG_WDT_IB700. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
* check: Move endianess test to commonJuan Quintela2018-08-271-13/+1Star
| | | | | | | | It is already protected by CONFIG_ISA_TESTDEV in all architectures. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* check: Move VMXNET3 test to commonJuan Quintela2018-08-271-2/+2
| | | | | | | | | We protect it with CONFIG_VMXNET3_PCI now, so no need to also put it on i386. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* check: Only test boot-serial when sga is compiled inJuan Quintela2018-08-271-1/+1
| | | | | | | | This is only for x86* architecture. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* check: Only test ivshm when it is compiled inJuan Quintela2018-08-271-3/+4
| | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* check: Only test usb-xhci-nec when it is compiled inJuan Quintela2018-08-271-4/+6
| | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* check: Only test isa-testdev when it is compiled inJuan Quintela2018-08-271-8/+8
| | | | | | | | | | | Once there, untangle endianness-test and boot-serial-test. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> --- boot-serial-test don't depend on isa-testdev. Thanks Thomas.
* json: Support %% in JSON strings when interpolatingMarkus Armbruster2018-08-241-2/+2
| | | | | | | | | | | | The previous commit makes JSON strings containing '%' awkward to express in templates: you'd have to mask the '%' with an Unicode escape \u0025. No template currently contains such JSON strings. Support the printf conversion specification %% in JSON strings as a convenience anyway, because it's trivially easy to do. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-58-armbru@redhat.com>
* json: Improve safety of qobject_from_jsonf_nofail() & friendsMarkus Armbruster2018-08-241-10/+7Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The JSON parser optionally supports interpolation. This is used to build QObjects by parsing string templates. The templates are C literals, so parse errors (such as invalid interpolation specifications) are actually programming errors. Consequently, the functions providing parsing with interpolation (qobject_from_jsonf_nofail(), qobject_from_vjsonf_nofail(), qdict_from_jsonf_nofail(), qdict_from_vjsonf_nofail()) pass &error_abort to the parser. However, there's another, more dangerous kind of programming error: since we use va_arg() to get the value to interpolate, behavior is undefined when the variable argument isn't consistent with the interpolation specification. The same problem exists with printf()-like functions, and the solution is to have the compiler check consistency. This is what GCC_FMT_ATTR() is about. To enable this type checking for interpolation as well, we carefully chose our interpolation specifications to match printf conversion specifications, and decorate functions parsing templates with GCC_FMT_ATTR(). Note that this only protects against undefined behavior due to type errors. It can't protect against use of invalid interpolation specifications that happen to be valid printf conversion specifications. However, there's still a gaping hole in the type checking: GCC recognizes '%' as start of printf conversion specification anywhere in the template, but the parser recognizes it only outside JSON strings. For instance, if someone were to pass a "{ '%s': %d }" template, GCC would require a char * and an int argument, but the parser would va_arg() only an int argument, resulting in undefined behavior. Avoid undefined behavior by catching the programming error at run time: have the parser recognize and reject '%' in JSON strings. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-57-armbru@redhat.com>
* tests/drive_del-test: Fix harmless JSON interpolation bugMarkus Armbruster2018-08-241-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | test_after_failed_device_add() does this: response = qmp("{'execute': 'device_add'," " 'arguments': {" " 'driver': 'virtio-blk-%s'," " 'drive': 'drive0'" "}}", qvirtio_get_dev_type()); Wrong. An interpolation specification must be a JSON token, it doesn't work within JSON string tokens. The code above doesn't use the value of qvirtio_get_dev_type(), and sends arguments {"driver": "virtio-blk-%s", "drive": "drive0"}} The command fails because there is no driver named "virtio-blk-%". Harmless, since the test wants the command to fail. Screwed up in commit 2f84a92ec63. Fix the obvious way. The command now fails because the drive is empty, like it did before commit 2f84a92ec63. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-55-armbru@redhat.com>
* json: Clean up headersMarkus Armbruster2018-08-241-1/+1
| | | | | | | | | | | | | The JSON parser has three public headers, json-lexer.h, json-parser.h, json-streamer.h. They all contain stuff that is of no interest outside qobject/json-*.c. Collect the public interface in include/qapi/qmp/json-parser.h, and everything else in qobject/json-parser-int.h. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-54-armbru@redhat.com>
* qjson: Have qobject_from_json() & friends reject empty and blankMarkus Armbruster2018-08-241-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | The last case where qobject_from_json() & friends return null without setting an error is empty or blank input. Callers: * block.c's parse_json_protocol() reports "Could not parse the JSON options". It's marked as a work-around, because it also covered actual bugs, but they got fixed in the previous few commits. * qobject_input_visitor_new_str() reports "JSON parse error". Also marked as work-around. The recent fixes have made this unreachable, because it currently gets called only for input starting with '{'. * check-qjson.c's empty_input() and blank_input() demonstrate the behavior. * The other callers are not affected since they only pass input with exactly one JSON value or, in the case of negative tests, one error. Fail with "Expecting a JSON value" instead of returning null, and simplify callers. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-48-armbru@redhat.com>
* json: Fix streamer not to ignore trailing unterminated structuresMarkus Armbruster2018-08-241-4/+4
| | | | | | | | | | | | | | | | | | json_message_process_token() accumulates tokens until it got the sequence of tokens that comprise a single JSON value (it counts curly braces and square brackets to decide). It feeds those token sequences to json_parser_parse(). If a non-empty sequence of tokens remains at the end of the parse, it's silently ignored. check-qjson.c cases unterminated_array(), unterminated_array_comma(), unterminated_dict(), unterminated_dict_comma() demonstrate this bug. Fix as follows. Introduce a JSON_END_OF_INPUT token. When the streamer receives it, it feeds the accumulated tokens to json_parser_parse(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-46-armbru@redhat.com>
* qjson: Fix qobject_from_json() & friends for multiple valuesMarkus Armbruster2018-08-241-7/+3Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qobject_from_json() & friends use the consume_json() callback to receive either a value or an error from the parser. When they are fed a string that contains more than either one JSON value or one JSON syntax error, consume_json() gets called multiple times. When the last call receives a value, qobject_from_json() returns that value. Any other values are leaked. When any call receives an error, qobject_from_json() sets the first error received. Any other errors are thrown away. When values follow errors, qobject_from_json() returns both a value and sets an error. That's bad. Impact: * block.c's parse_json_protocol() ignores and leaks the value. It's used to to parse pseudo-filenames starting with "json:". The pseudo-filenames can come from the user or from image meta-data such as a QCOW2 image's backing file name. * vl.c's parse_display_qapi() ignores and leaks the error. It's used to parse the argument of command line option -display. * vl.c's main() case QEMU_OPTION_blockdev ignores the error and leaves it in @err. main() will then pass a pointer to a non-null Error * to net_init_clients(), which is forbidden. It can lead to assertion failure or other misbehavior. * check-qjson.c's multiple_values() demonstrates the badness. * The other callers are not affected since they only pass strings with exactly one JSON value or, in the case of negative tests, one error. The impact on the _nofail() functions is relatively harmless. They abort when any call receives an error. Else they return the last value, and leak the others, if any. Fix consume_json() as follows. On the first call, save value and error as before. On subsequent calls, if any, don't save them. If the first call saved a value, the next call, if any, replaces the value by an "Expecting at most one JSON value" error. Take care not to leak values or errors that aren't saved. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-44-armbru@redhat.com>
* json: Replace %I64d, %I64u by %PRId64, %PRIu64Markus Armbruster2018-08-241-0/+10
| | | | | | | | | | | | | Support for %I64d got added in commit 2c0d4b36e7f "json: fix PRId64 on Win32". We had to hard-code I64d because we used the lexer's finite state machine to check interpolations. No more, so clean this up. Additional conversion specifications would be easy enough to implement when needed. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-42-armbru@redhat.com>
* json: Leave rejecting invalid interpolation to parserMarkus Armbruster2018-08-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both lexer and parser reject invalid interpolation specifications. The parser's check is useless. The lexer ends the token right after the first bad character. This tends to lead to suboptimal error reporting. For instance, input [ %04d ] produces the tokens JSON_LSQUARE [ JSON_ERROR %0 JSON_INTEGER 4 JSON_KEYWORD d JSON_RSQUARE ] The parser then yields an error, an object and two more errors: error: Invalid JSON syntax object: 4 error: JSON parse error, invalid keyword error: JSON parse error, expecting value Dumb down the lexer to accept [A-Za-z0-9]*. The parser's check is now used. Emit a proper error there. The lexer now produces JSON_LSQUARE [ JSON_INTERP %04d JSON_RSQUARE ] and the parser reports just JSON parse error, invalid interpolation '%04d' Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-41-armbru@redhat.com>
* json: Pass lexical errors and limit violations to callbackMarkus Armbruster2018-08-242-9/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The callback to consume JSON values takes QObject *json, Error *err. If both are null, the callback is supposed to make up an error by itself. This sucks. qjson.c's consume_json() neglects to do so, which makes qobject_from_json() null instead of failing. I consider that a bug. The culprit is json_message_process_token(): it passes two null pointers when it runs into a lexical error or a limit violation. Fix it to pass a proper Error object then. Update the callbacks: * monitor.c's handle_qmp_command(): the code to make up an error is now dead, drop it. * qga/main.c's process_event(): lumps the "both null" case together with the "not a JSON object" case. The former is now gone. The error message "Invalid JSON syntax" is misleading for the latter. Improve it to "Input must be a JSON object". * qobject/qjson.c's consume_json(): no update; check-qjson demonstrates qobject_from_json() now sets an error on lexical errors, but still doesn't on some other errors. * tests/libqtest.c's qmp_response(): the Error object is now reliable, so use it to improve the error message. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-40-armbru@redhat.com>
* json: Treat unwanted interpolation as lexical errorMarkus Armbruster2018-08-241-0/+4
| | | | | | | | | | | | | | | | | | | The JSON parser optionally supports interpolation. The lexer recognizes interpolation tokens unconditionally. The parser rejects them when interpolation is disabled, in parse_interpolation(). However, it neglects to set an error then, which can make json_parser_parse() fail without setting an error. Move the check for unwanted interpolation from the parser's parse_interpolation() into the lexer's finite state machine. When interpolation is disabled, '%' is now handled like any other unexpected character. The next commit will improve how such lexical errors are handled. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-39-armbru@redhat.com>
* json: Redesign the callback to consume JSON valuesMarkus Armbruster2018-08-242-7/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The classical way to structure parser and lexer is to have the client call the parser to get an abstract syntax tree, the parser call the lexer to get the next token, and the lexer call some function to get input characters. Another way to structure them would be to have the client feed characters to the lexer, the lexer feed tokens to the parser, and the parser feed abstract syntax trees to some callback provided by the client. This way is more easily integrated into an event loop that dispatches input characters as they arrive. Our JSON parser is kind of between the two. The lexer feeds tokens to a "streamer" instead of a real parser. The streamer accumulates tokens until it got the sequence of tokens that comprise a single JSON value (it counts curly braces and square brackets to decide). It feeds those token sequences to a callback provided by the client. The callback passes each token sequence to the parser, and gets back an abstract syntax tree. I figure it was done that way to make a straightforward recursive descent parser possible. "Get next token" becomes "pop the first token off the token sequence". Drawback: we need to store a complete token sequence. Each token eats 13 + input characters + malloc overhead bytes. Observations: 1. This is not the only way to use recursive descent. If we replaced "get next token" by a coroutine yield, we could do without a streamer. 2. The lexer reports errors by passing a JSON_ERROR token to the streamer. This communicates the offending input characters and their location, but no more. 3. The streamer reports errors by passing a null token sequence to the callback. The (already poor) lexical error information is thrown away. 4. Having the callback receive a token sequence duplicates the code to convert token sequence to abstract syntax tree in every callback. 5. Known bug: the streamer silently drops incomplete token sequences. This commit rectifies 4. by lifting the call of the parser from the callbacks into the streamer. Later commits will address 3. and 5. The lifting removes a bug from qjson.c's parse_json(): it passed a pointer to a non-null Error * in certain cases, as demonstrated by check-qjson.c. json_parser_parse() is now unused. It's a stupid wrapper around json_parser_parse_err(). Drop it, and rename json_parser_parse_err() to json_parser_parse(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-35-armbru@redhat.com>
* check-qjson: Fix and enable utf8_string()'s disabled partMarkus Armbruster2018-08-241-8/+3Star
| | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-31-armbru@redhat.com>
* json: Fix \uXXXX for surrogate pairsMarkus Armbruster2018-08-241-2/+1Star
| | | | | | | | | The JSON parser treats each half of a surrogate pair as unpaired surrogate. Fix it to recognize surrogate pairs. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-30-armbru@redhat.com>
* json: Reject invalid \uXXXX, fix \u0000Markus Armbruster2018-08-241-30/+11Star
| | | | | | | | | | | | | | The JSON parser translates invalid \uXXXX to garbage instead of rejecting it, and swallows \u0000. Fix by using mod_utf8_encode() instead of flawed wchar_to_utf8(). Valid surrogate pairs are now differently broken: they're rejected instead of translated to garbage. The next commit will fix them. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-29-armbru@redhat.com>
* json: Accept overlong \xC0\x80 as U+0000 ("modified UTF-8")Markus Armbruster2018-08-241-7/+1Star
| | | | | | | | | | | Since the JSON grammer doesn't accept U+0000 anywhere, this merely exchanges one kind of parse error for another. It's purely for consistency with qobject_to_json(), which accepts \xC0\x80 (see commit e2ec3f97680). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-26-armbru@redhat.com>
* json: Reject invalid UTF-8 sequencesMarkus Armbruster2018-08-241-92/+45Star
| | | | | | | | | | | | | | | | | | | | | | | | | | We reject bytes that can't occur in valid UTF-8 (\xC0..\xC1, \xF5..\xFF in the lexer. That's insufficient; there's plenty of invalid UTF-8 not containing these bytes, as demonstrated by check-qjson: * Malformed sequences - Unexpected continuation bytes - Missing continuation bytes after start bytes other than \xC0..\xC1, \xF5..\xFD. * Overlong sequences with start bytes other than \xC0..\xC1, \xF5..\xFD. * Invalid code points Fixing this in the lexer would be bothersome. Fixing it in the parser is straightforward, so do that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-23-armbru@redhat.com>
* check-qjson: Document we expect invalid UTF-8 to be rejectedMarkus Armbruster2018-08-241-80/+71Star
| | | | | | | | | | | | | | | | The JSON parser rejects some invalid sequences, but accepts others without correcting the problem. We should either reject all invalid sequences, or minimize overlong sequences and replace all other invalid sequences by a suitable replacement character. A common choice for replacement is U+FFFD. I'm going to implement the former. Update the comments in utf8_string() to expect this. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-22-armbru@redhat.com>
* json: Reject unescaped control charactersMarkus Armbruster2018-08-242-7/+3Star
| | | | | | | | | | | | | | | | | | Fix the lexer to reject unescaped control characters in JSON strings, in accordance with RFC 8259 "The JavaScript Object Notation (JSON) Data Interchange Format". Bonus: we now recover more nicely from unclosed strings. E.g. {"one: 1}\n{"two": 2} now recovers cleanly after the newline, where before the lexer remained confused until the next unpaired double quote or lexical error. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-19-armbru@redhat.com>
* check-qjson: Cover interpolation more thoroughlyMarkus Armbruster2018-08-241-60/+98
| | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-17-armbru@redhat.com>
* check-qjson qmp-test: Cover control characters more thoroughlyMarkus Armbruster2018-08-242-6/+44
| | | | | | | | | | RFC 8259 "The JavaScript Object Notation (JSON) Data Interchange Format" requires control characters in strings to be escaped. Demonstrate the JSON parser accepts U+0001 .. U+001F unescaped. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-16-armbru@redhat.com>
* check-qjson: Fix utf8_string() to test all invalid sequencesMarkus Armbruster2018-08-241-5/+28
| | | | | | | | | | | | | | | Some of utf8_string()'s test_cases[] contain multiple invalid sequences. Testing that qobject_from_json() fails only tests we reject at least one invalid sequence. That's incomplete. Additionally test each non-space sequence in isolation. This demonstrates that the JSON parser accepts invalid sequences starting with \xC2..\xF4. Add a FIXME comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-15-armbru@redhat.com>
* check-qjson: Simplify utf8_string()Markus Armbruster2018-08-241-44/+9Star
| | | | | | | | | | | | The previous commit made utf8_string()'s test_cases[].utf8_in superfluous: we can use .json_in instead. Except for the case testing U+0000. \x00 doesn't work in C strings, so it tests \\u0000 instead. But testing \\uXXXX is escaped_string()'s job. It's covered there. Test U+0001 here, and drop .utf8_in. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-14-armbru@redhat.com>
* check-qjson: Cover UTF-8 in single quoted stringsMarkus Armbruster2018-08-241-214/+215
| | | | | | | | | | utf8_string() tests only double quoted strings. Cover single quoted strings, too: store the strings to test without quotes, then wrap them in either kind of quote. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-13-armbru@redhat.com>
* check-qjson: Consolidate partly redundant string testsMarkus Armbruster2018-08-241-50/+14Star
| | | | | | | | | | simple_string() and single_quote_string() have become redundant with escaped_string(), except for embedded single and double quotes. Replace them by a test that covers just that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-12-armbru@redhat.com>
* check-qjson: Cover escaped characters more thoroughly, part 2Markus Armbruster2018-08-241-9/+53
| | | | | | | | | | | Cover escaped single quote, surrogates, invalid escapes, and noncharacters. This demonstrates that valid surrogate pairs are misinterpreted, and invalid surrogates and noncharacters aren't rejected. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-11-armbru@redhat.com>
* check-qjson: Streamline escaped_string()'s test stringsMarkus Armbruster2018-08-241-11/+1Star
| | | | | | | | | Merge a few closely related test strings, and drop a few redundant ones. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-10-armbru@redhat.com>
* check-qjson: Cover escaped characters more thoroughly, part 1Markus Armbruster2018-08-241-39/+57
| | | | | | | | | | | escaped_string() first tests double quoted strings, then repeats a few tests with single quotes. Repeat all of them: store the strings to test without quotes, and wrap them in either kind of quote for testing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-9-armbru@redhat.com>
* test-qga: Clean up how we test QGA synchronizationMarkus Armbruster2018-08-243-19/+25
| | | | | | | | | | | | | | | To permit recovering from arbitrary JSON parse errors, the JSON parser resets itself on lexical errors. We recommend sending a 0xff byte for that purpose, and test-qga covers this usage since commit 5229564b832. That commit had to add an ugly hack to qmp_fd_vsend() to make capable of sending this byte (it's designed to send only valid JSON). The previous commit added a way to send arbitrary text. Put that to use for this purpose, and drop the hack from qmp_fd_vsend(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-8-armbru@redhat.com>
* qmp-test: Cover syntax and lexical errorsMarkus Armbruster2018-08-243-1/+68
| | | | | | | | | | | qmp-test neglects to cover QMP input that isn't valid JSON. libqtest doesn't let us send such input. Add qtest_qmp_send_raw() for this purpose, and put it to use in qmp-test. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-7-armbru@redhat.com> [Commit message typo fixed]
* qmp-cmd-test: Split off qmp-testMarkus Armbruster2018-08-243-191/+218
| | | | | | | | | | qmp-test is for QMP protocol tests. Commit e4a426e75ef added generic, basic tests of query commands to it. Move them to their own test program qmp-cmd-test, to keep qmp-test focused on the protocol. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-6-armbru@redhat.com>
* check-qjson: Cover whitespace more thoroughlyMarkus Armbruster2018-08-241-1/+1
| | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-5-armbru@redhat.com>
* check-qjson: Cover blank and lexically erroneous inputMarkus Armbruster2018-08-241-3/+37
| | | | | | | | | | qobject_from_json() can return null without setting an error on lexical errors. I call that a bug. Add test coverage to demonstrate it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-4-armbru@redhat.com>
* check-qjson: Cover multiple JSON objects in same stringMarkus Armbruster2018-08-241-0/+20
| | | | | | | | | qobject_from_json() & friends misbehave when the JSON text has more than one JSON value. Add test coverage to demonstrate the bugs. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180823164025.12553-3-armbru@redhat.com>
* Merge remote-tracking branch 'remotes/juanquintela/tags/check/20180822' into ↵Peter Maydell2018-08-241-49/+51
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | staging check/next for 20180822 # gpg: Signature made Wed 22 Aug 2018 09:03:40 BST # gpg: using RSA key F487EF185872D723 # gpg: Good signature from "Juan Quintela <quintela@redhat.com>" # gpg: aka "Juan Quintela <quintela@trasno.org>" # Primary key fingerprint: 1899 FF8E DEBF 58CC EE03 4B82 F487 EF18 5872 D723 * remotes/juanquintela/tags/check/20180822: check: Only test tpm devices when they are compiled in check: Only test usb-ehci when it is compiled in check: Only test usb-uhci devices when they are compiled in check: Only test usb-ohci when it is compiled in check: Only test nvme when it is compiled in check: Only test pvpanic when it is compiled in check: Only test wdt_ib700 when it is compiled in check: Only test sdhci when it is compiled in check: Only test i82801b11 when it is compiled in check: Only test ioh3420 when it is compiled in check: Only test ipack when it is compiled in check: Only test hda when it is compiled in check: Only test ac97 when it is compiled in check: Only test es1370 when it is compiled in check: Only test rtl8139 when it is compiled in check: Only test pcnet when it is compiled in check: Only test eepro100 when it is compiled in check: Only test ne2000 when it is compiled in check: Only test vmxnet3 when it is compiled in Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * check: Only test tpm devices when they are compiled inJuan Quintela2018-08-211-4/+4
| | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test usb-ehci when it is compiled inJuan Quintela2018-08-211-1/+3
| | | | | | | | | | | | | | The ehci test also test uhci. Welcome to the worderfull world of USB. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test usb-uhci devices when they are compiled inJuan Quintela2018-08-211-4/+4
| | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test usb-ohci when it is compiled inJuan Quintela2018-08-211-4/+4
| | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test nvme when it is compiled inJuan Quintela2018-08-211-2/+2
| | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test pvpanic when it is compiled inJuan Quintela2018-08-211-2/+2
| | | | | | | | | | | | | | | | It was not possible to compile out pvpanic. Use the same trick than applesmc. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test wdt_ib700 when it is compiled inJuan Quintela2018-08-211-2/+2
| | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
| * check: Only test sdhci when it is compiled inJuan Quintela2018-08-211-3/+3
| | | | | | | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
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