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qemu/tests/test-qemu-opts.c
Daniel P. Berrangé e652714f98 opts: don't silently truncate long parameter keys 
The existing QemuOpts parsing code uses a fixed size 128 byte buffer
for storing the parameter keys. If a key exceeded this size it was
silently truncate and no error reported to the user. This behaviour was
reasonable & harmless because traditionally the key names are all
statically declared, and it was known that no code was declaring a key
longer than 127 bytes. This assumption, however, ceased to be valid once
the block layer added support for dot-separate compound keys. This
syntax allows for keys that can be arbitrarily long, limited only by the
number of block drivers you can stack up. With this usage, silently
truncating the key name can never lead to correct behaviour.

Hopefully such truncation would turn into an error, when the block code
then tried to extract options later, but there's no guarantee that will
happen. It is conceivable that an option specified by the user may be
truncated and then ignored. This could have serious consequences,
possibly even leading to security problems if the ignored option set a
security relevant parameter.

If the operating system didn't limit the user's argv when spawning QEMU,
the code should honour whatever length arguments were given without
imposing its own length restrictions. This patch thus changes the code
to use a heap allocated buffer for storing the keys during parsing,
lifting the arbitrary length restriction.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20180416111743.8473-3-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-05-09 00:13:39 +02:00

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/*
* QemuOpts unit-tests.
*
* Copyright (C) 2014 Leandro Dorileo <l@dorileo.org>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qemu/cutils.h"
#include "qemu/option.h"
#include "qemu/option_int.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qstring.h"
#include "qemu/config-file.h"
static QemuOptsList opts_list_01 = {
.name = "opts_list_01",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_01.head),
.desc = {
{
.name = "str1",
.type = QEMU_OPT_STRING,
.help = "Help texts are preserved in qemu_opts_append",
.def_value_str = "default",
},{
.name = "str2",
.type = QEMU_OPT_STRING,
},{
.name = "str3",
.type = QEMU_OPT_STRING,
},{
.name = "number1",
.type = QEMU_OPT_NUMBER,
.help = "Having help texts only for some options is okay",
},{
.name = "number2",
.type = QEMU_OPT_NUMBER,
},
{ /* end of list */ }
},
};
static QemuOptsList opts_list_02 = {
.name = "opts_list_02",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_02.head),
.desc = {
{
.name = "str1",
.type = QEMU_OPT_STRING,
},{
.name = "str2",
.type = QEMU_OPT_STRING,
},{
.name = "bool1",
.type = QEMU_OPT_BOOL,
},{
.name = "bool2",
.type = QEMU_OPT_BOOL,
},{
.name = "size1",
.type = QEMU_OPT_SIZE,
},{
.name = "size2",
.type = QEMU_OPT_SIZE,
},{
.name = "size3",
.type = QEMU_OPT_SIZE,
},
{ /* end of list */ }
},
};
static QemuOptsList opts_list_03 = {
.name = "opts_list_03",
.implied_opt_name = "implied",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_03.head),
.desc = {
/* no elements => accept any params */
{ /* end of list */ }
},
};
static void register_opts(void)
{
qemu_add_opts(&opts_list_01);
qemu_add_opts(&opts_list_02);
qemu_add_opts(&opts_list_03);
}
static void test_find_unknown_opts(void)
{
QemuOptsList *list;
Error *err = NULL;
/* should not return anything, we don't have an "unknown" option */
list = qemu_find_opts_err("unknown", &err);
g_assert(list == NULL);
error_free_or_abort(&err);
}
static void test_qemu_find_opts(void)
{
QemuOptsList *list;
/* we have an "opts_list_01" option, should return it */
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert_cmpstr(list->name, ==, "opts_list_01");
}
static void test_qemu_opts_create(void)
{
QemuOptsList *list;
QemuOpts *opts;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* now we've create the opts, must find it */
opts = qemu_opts_find(list, NULL);
g_assert(opts != NULL);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get(void)
{
QemuOptsList *list;
QemuOpts *opts;
const char *opt = NULL;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to str2 yet */
opt = qemu_opt_get(opts, "str2");
g_assert(opt == NULL);
qemu_opt_set(opts, "str2", "value", &error_abort);
/* now we have set str2, should know about it */
opt = qemu_opt_get(opts, "str2");
g_assert_cmpstr(opt, ==, "value");
qemu_opt_set(opts, "str2", "value2", &error_abort);
/* having reset the value, the returned should be the reset one */
opt = qemu_opt_get(opts, "str2");
g_assert_cmpstr(opt, ==, "value2");
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get_bool(void)
{
Error *err = NULL;
QemuOptsList *list;
QemuOpts *opts;
bool opt;
list = qemu_find_opts("opts_list_02");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_02");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to bool1 yet, so defval should be returned */
opt = qemu_opt_get_bool(opts, "bool1", false);
g_assert(opt == false);
qemu_opt_set_bool(opts, "bool1", true, &err);
g_assert(!err);
/* now we have set bool1, should know about it */
opt = qemu_opt_get_bool(opts, "bool1", false);
g_assert(opt == true);
/* having reset the value, opt should be the reset one not defval */
qemu_opt_set_bool(opts, "bool1", false, &err);
g_assert(!err);
opt = qemu_opt_get_bool(opts, "bool1", true);
g_assert(opt == false);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get_number(void)
{
Error *err = NULL;
QemuOptsList *list;
QemuOpts *opts;
uint64_t opt;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to number1 yet, so defval should be returned */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 5);
qemu_opt_set_number(opts, "number1", 10, &err);
g_assert(!err);
/* now we have set number1, should know about it */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 10);
/* having reset it, the returned should be the reset one not defval */
qemu_opt_set_number(opts, "number1", 15, &err);
g_assert(!err);
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 15);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get_size(void)
{
QemuOptsList *list;
QemuOpts *opts;
uint64_t opt;
QDict *dict;
list = qemu_find_opts("opts_list_02");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_02");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to size1 yet, so defval should be returned */
opt = qemu_opt_get_size(opts, "size1", 5);
g_assert(opt == 5);
dict = qdict_new();
g_assert(dict != NULL);
qdict_put_str(dict, "size1", "10");
qemu_opts_absorb_qdict(opts, dict, &error_abort);
g_assert(error_abort == NULL);
/* now we have set size1, should know about it */
opt = qemu_opt_get_size(opts, "size1", 5);
g_assert(opt == 10);
/* reset value */
qdict_put_str(dict, "size1", "15");
qemu_opts_absorb_qdict(opts, dict, &error_abort);
g_assert(error_abort == NULL);
/* test the reset value */
opt = qemu_opt_get_size(opts, "size1", 5);
g_assert(opt == 15);
qdict_del(dict, "size1");
g_free(dict);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_unset(void)
{
QemuOpts *opts;
const char *value;
int ret;
/* dynamically initialized (parsed) opts */
opts = qemu_opts_parse(&opts_list_03, "key=value", false, NULL);
g_assert(opts != NULL);
/* check default/parsed value */
value = qemu_opt_get(opts, "key");
g_assert_cmpstr(value, ==, "value");
/* reset it to value2 */
qemu_opt_set(opts, "key", "value2", &error_abort);
value = qemu_opt_get(opts, "key");
g_assert_cmpstr(value, ==, "value2");
/* unset, valid only for "accept any" */
ret = qemu_opt_unset(opts, "key");
g_assert(ret == 0);
/* after reset the value should be the parsed/default one */
value = qemu_opt_get(opts, "key");
g_assert_cmpstr(value, ==, "value");
qemu_opts_del(opts);
}
static void test_qemu_opts_reset(void)
{
Error *err = NULL;
QemuOptsList *list;
QemuOpts *opts;
uint64_t opt;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to number1 yet, so defval should be returned */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 5);
qemu_opt_set_number(opts, "number1", 10, &err);
g_assert(!err);
/* now we have set number1, should know about it */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 10);
qemu_opts_reset(list);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opts_set(void)
{
Error *err = NULL;
QemuOptsList *list;
QemuOpts *opts;
const char *opt;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* implicitly create opts and set str3 value */
qemu_opts_set(list, NULL, "str3", "value", &err);
g_assert(!err);
g_assert(!QTAILQ_EMPTY(&list->head));
/* get the just created opts */
opts = qemu_opts_find(list, NULL);
g_assert(opts != NULL);
/* check the str3 value */
opt = qemu_opt_get(opts, "str3");
g_assert_cmpstr(opt, ==, "value");
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static int opts_count_iter(void *opaque, const char *name, const char *value,
Error **errp)
{
(*(size_t *)opaque)++;
return 0;
}
static size_t opts_count(QemuOpts *opts)
{
size_t n = 0;
qemu_opt_foreach(opts, opts_count_iter, &n, NULL);
return n;
}
static void test_opts_parse(void)
{
Error *err = NULL;
QemuOpts *opts;
/* Nothing */
opts = qemu_opts_parse(&opts_list_03, "", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 0);
/* Empty key */
opts = qemu_opts_parse(&opts_list_03, "=val", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "val");
/* Multiple keys, last one wins */
opts = qemu_opts_parse(&opts_list_03, "a=1,b=2,,x,a=3",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmpstr(qemu_opt_get(opts, "a"), ==, "3");
g_assert_cmpstr(qemu_opt_get(opts, "b"), ==, "2,x");
/* Except when it doesn't */
opts = qemu_opts_parse(&opts_list_03, "id=foo,id=bar",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 0);
g_assert_cmpstr(qemu_opts_id(opts), ==, "foo");
/* TODO Cover low-level access to repeated keys */
/* Trailing comma is ignored */
opts = qemu_opts_parse(&opts_list_03, "x=y,", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, "x"), ==, "y");
/* Except when it isn't */
opts = qemu_opts_parse(&opts_list_03, ",", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "on");
/* Duplicate ID */
opts = qemu_opts_parse(&opts_list_03, "x=y,id=foo", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* TODO Cover .merge_lists = true */
/* Buggy ID recognition */
opts = qemu_opts_parse(&opts_list_03, "x=,,id=bar", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opts_id(opts), ==, "bar"); /* BUG */
g_assert_cmpstr(qemu_opt_get(opts, "x"), ==, ",id=bar");
/* Anti-social ID */
opts = qemu_opts_parse(&opts_list_01, "id=666", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Implied value */
opts = qemu_opts_parse(&opts_list_03, "an,noaus,noaus=",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmpstr(qemu_opt_get(opts, "an"), ==, "on");
g_assert_cmpstr(qemu_opt_get(opts, "aus"), ==, "off");
g_assert_cmpstr(qemu_opt_get(opts, "noaus"), ==, "");
/* Implied value, negated empty key */
opts = qemu_opts_parse(&opts_list_03, "no", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "off");
/* Implied key */
opts = qemu_opts_parse(&opts_list_03, "an,noaus,noaus=", true,
&error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmpstr(qemu_opt_get(opts, "implied"), ==, "an");
g_assert_cmpstr(qemu_opt_get(opts, "aus"), ==, "off");
g_assert_cmpstr(qemu_opt_get(opts, "noaus"), ==, "");
/* Implied key with empty value */
opts = qemu_opts_parse(&opts_list_03, ",", true, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, "implied"), ==, "");
/* Implied key with comma value */
opts = qemu_opts_parse(&opts_list_03, ",,,a=1", true, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmpstr(qemu_opt_get(opts, "implied"), ==, ",");
g_assert_cmpstr(qemu_opt_get(opts, "a"), ==, "1");
/* Empty key is not an implied key */
opts = qemu_opts_parse(&opts_list_03, "=val", true, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "val");
/* Unknown key */
opts = qemu_opts_parse(&opts_list_01, "nonexistent=", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_01);
qemu_opts_reset(&opts_list_03);
}
static void test_opts_parse_bool(void)
{
Error *err = NULL;
QemuOpts *opts;
opts = qemu_opts_parse(&opts_list_02, "bool1=on,bool2=off",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert(qemu_opt_get_bool(opts, "bool1", false));
g_assert(!qemu_opt_get_bool(opts, "bool2", true));
opts = qemu_opts_parse(&opts_list_02, "bool1=offer", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_02);
}
static void test_opts_parse_number(void)
{
Error *err = NULL;
QemuOpts *opts;
/* Lower limit zero */
opts = qemu_opts_parse(&opts_list_01, "number1=0", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 0);
/* Upper limit 2^64-1 */
opts = qemu_opts_parse(&opts_list_01,
"number1=18446744073709551615,number2=-1",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_number(opts, "number1", 1), ==, UINT64_MAX);
g_assert_cmphex(qemu_opt_get_number(opts, "number2", 0), ==, UINT64_MAX);
/* Above upper limit */
opts = qemu_opts_parse(&opts_list_01, "number1=18446744073709551616",
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Below lower limit */
opts = qemu_opts_parse(&opts_list_01, "number1=-18446744073709551616",
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Hex and octal */
opts = qemu_opts_parse(&opts_list_01, "number1=0x2a,number2=052",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 42);
g_assert_cmpuint(qemu_opt_get_number(opts, "number2", 0), ==, 42);
/* Invalid */
opts = qemu_opts_parse(&opts_list_01, "number1=", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_01, "number1=eins", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Leading whitespace */
opts = qemu_opts_parse(&opts_list_01, "number1= \t42",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 42);
/* Trailing crap */
opts = qemu_opts_parse(&opts_list_01, "number1=3.14", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_01, "number1=08", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_01, "number1=0 ", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_01);
}
static void test_opts_parse_size(void)
{
Error *err = NULL;
QemuOpts *opts;
/* Lower limit zero */
opts = qemu_opts_parse(&opts_list_02, "size1=0", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_size(opts, "size1", 1), ==, 0);
/* Note: precision is 53 bits since we're parsing with strtod() */
/* Around limit of precision: 2^53-1, 2^53, 2^54 */
opts = qemu_opts_parse(&opts_list_02,
"size1=9007199254740991,"
"size2=9007199254740992,"
"size3=9007199254740993",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1),
==, 0x1fffffffffffff);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1),
==, 0x20000000000000);
g_assert_cmphex(qemu_opt_get_size(opts, "size3", 1),
==, 0x20000000000000);
/* Close to signed upper limit 0x7ffffffffffffc00 (53 msbs set) */
opts = qemu_opts_parse(&opts_list_02,
"size1=9223372036854774784," /* 7ffffffffffffc00 */
"size2=9223372036854775295", /* 7ffffffffffffdff */
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1),
==, 0x7ffffffffffffc00);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1),
==, 0x7ffffffffffffc00);
/* Close to actual upper limit 0xfffffffffffff800 (53 msbs set) */
opts = qemu_opts_parse(&opts_list_02,
"size1=18446744073709549568," /* fffffffffffff800 */
"size2=18446744073709550591", /* fffffffffffffbff */
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1),
==, 0xfffffffffffff800);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1),
==, 0xfffffffffffff800);
/* Beyond limits */
opts = qemu_opts_parse(&opts_list_02, "size1=-1", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_02,
"size1=18446744073709550592", /* fffffffffffffc00 */
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Suffixes */
opts = qemu_opts_parse(&opts_list_02, "size1=8b,size2=1.5k,size3=2M",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 0), ==, 8);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 0), ==, 1536);
g_assert_cmphex(qemu_opt_get_size(opts, "size3", 0), ==, 2 * M_BYTE);
opts = qemu_opts_parse(&opts_list_02, "size1=0.1G,size2=16777215T",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 0), ==, G_BYTE / 10);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 0),
==, 16777215 * T_BYTE);
/* Beyond limit with suffix */
opts = qemu_opts_parse(&opts_list_02, "size1=16777216T",
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Trailing crap */
opts = qemu_opts_parse(&opts_list_02, "size1=16E", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_02, "size1=16Gi", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_02);
}
static void append_verify_list_01(QemuOptDesc *desc, bool with_overlapping)
{
int i = 0;
if (with_overlapping) {
g_assert_cmpstr(desc[i].name, ==, "str1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==,
"Help texts are preserved in qemu_opts_append");
g_assert_cmpstr(desc[i].def_value_str, ==, "default");
i++;
g_assert_cmpstr(desc[i].name, ==, "str2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
}
g_assert_cmpstr(desc[i].name, ==, "str3");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "number1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_NUMBER);
g_assert_cmpstr(desc[i].help, ==,
"Having help texts only for some options is okay");
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "number2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_NUMBER);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, NULL);
}
static void append_verify_list_02(QemuOptDesc *desc)
{
int i = 0;
g_assert_cmpstr(desc[i].name, ==, "str1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "str2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "bool1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_BOOL);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "bool2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_BOOL);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "size1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_SIZE);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "size2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_SIZE);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "size3");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_SIZE);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
}
static void test_opts_append_to_null(void)
{
QemuOptsList *merged;
merged = qemu_opts_append(NULL, &opts_list_01);
g_assert(merged != &opts_list_01);
g_assert_cmpstr(merged->name, ==, NULL);
g_assert_cmpstr(merged->implied_opt_name, ==, NULL);
g_assert_false(merged->merge_lists);
append_verify_list_01(merged->desc, true);
qemu_opts_free(merged);
}
static void test_opts_append(void)
{
QemuOptsList *first, *merged;
first = qemu_opts_append(NULL, &opts_list_02);
merged = qemu_opts_append(first, &opts_list_01);
g_assert(first != &opts_list_02);
g_assert(merged != &opts_list_01);
g_assert_cmpstr(merged->name, ==, NULL);
g_assert_cmpstr(merged->implied_opt_name, ==, NULL);
g_assert_false(merged->merge_lists);
append_verify_list_02(&merged->desc[0]);
append_verify_list_01(&merged->desc[7], false);
qemu_opts_free(merged);
}
static void test_opts_to_qdict_basic(void)
{
QemuOpts *opts;
QDict *dict;
opts = qemu_opts_parse(&opts_list_01, "str1=foo,str2=,str3=bar,number1=42",
false, &error_abort);
g_assert(opts != NULL);
dict = qemu_opts_to_qdict(opts, NULL);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "str3"), ==, "bar");
g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
g_assert_false(qdict_haskey(dict, "number2"));
qobject_unref(dict);
qemu_opts_del(opts);
}
static void test_opts_to_qdict_filtered(void)
{
QemuOptsList *first, *merged;
QemuOpts *opts;
QDict *dict;
first = qemu_opts_append(NULL, &opts_list_02);
merged = qemu_opts_append(first, &opts_list_01);
opts = qemu_opts_parse(merged,
"str1=foo,str2=,str3=bar,bool1=off,number1=42",
false, &error_abort);
g_assert(opts != NULL);
/* Convert to QDict without deleting from opts */
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_01, false);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "str3"), ==, "bar");
g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
g_assert_false(qdict_haskey(dict, "number2"));
g_assert_false(qdict_haskey(dict, "bool1"));
qobject_unref(dict);
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_02, false);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "bool1"), ==, "off");
g_assert_false(qdict_haskey(dict, "str3"));
g_assert_false(qdict_haskey(dict, "number1"));
g_assert_false(qdict_haskey(dict, "number2"));
qobject_unref(dict);
/* Now delete converted options from opts */
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_01, true);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "str3"), ==, "bar");
g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
g_assert_false(qdict_haskey(dict, "number2"));
g_assert_false(qdict_haskey(dict, "bool1"));
qobject_unref(dict);
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_02, true);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "bool1"), ==, "off");
g_assert_false(qdict_haskey(dict, "str1"));
g_assert_false(qdict_haskey(dict, "str2"));
g_assert_false(qdict_haskey(dict, "str3"));
g_assert_false(qdict_haskey(dict, "number1"));
g_assert_false(qdict_haskey(dict, "number2"));
qobject_unref(dict);
g_assert_true(QTAILQ_EMPTY(&opts->head));
qemu_opts_del(opts);
qemu_opts_free(merged);
}
static void test_opts_to_qdict_duplicates(void)
{
QemuOpts *opts;
QemuOpt *opt;
QDict *dict;
opts = qemu_opts_parse(&opts_list_03, "foo=a,foo=b", false, &error_abort);
g_assert(opts != NULL);
/* Verify that opts has two options with the same name */
opt = QTAILQ_FIRST(&opts->head);
g_assert_cmpstr(opt->name, ==, "foo");
g_assert_cmpstr(opt->str , ==, "a");
opt = QTAILQ_NEXT(opt, next);
g_assert_cmpstr(opt->name, ==, "foo");
g_assert_cmpstr(opt->str , ==, "b");
opt = QTAILQ_NEXT(opt, next);
g_assert(opt == NULL);
/* In the conversion to QDict, the last one wins */
dict = qemu_opts_to_qdict(opts, NULL);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "b");
qobject_unref(dict);
/* The last one still wins if entries are deleted, and both are deleted */
dict = qemu_opts_to_qdict_filtered(opts, NULL, NULL, true);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "b");
qobject_unref(dict);
g_assert_true(QTAILQ_EMPTY(&opts->head));
qemu_opts_del(opts);
}
int main(int argc, char *argv[])
{
register_opts();
g_test_init(&argc, &argv, NULL);
g_test_add_func("/qemu-opts/find_unknown_opts", test_find_unknown_opts);
g_test_add_func("/qemu-opts/find_opts", test_qemu_find_opts);
g_test_add_func("/qemu-opts/opts_create", test_qemu_opts_create);
g_test_add_func("/qemu-opts/opt_get", test_qemu_opt_get);
g_test_add_func("/qemu-opts/opt_get_bool", test_qemu_opt_get_bool);
g_test_add_func("/qemu-opts/opt_get_number", test_qemu_opt_get_number);
g_test_add_func("/qemu-opts/opt_get_size", test_qemu_opt_get_size);
g_test_add_func("/qemu-opts/opt_unset", test_qemu_opt_unset);
g_test_add_func("/qemu-opts/opts_reset", test_qemu_opts_reset);
g_test_add_func("/qemu-opts/opts_set", test_qemu_opts_set);
g_test_add_func("/qemu-opts/opts_parse/general", test_opts_parse);
g_test_add_func("/qemu-opts/opts_parse/bool", test_opts_parse_bool);
g_test_add_func("/qemu-opts/opts_parse/number", test_opts_parse_number);
g_test_add_func("/qemu-opts/opts_parse/size", test_opts_parse_size);
g_test_add_func("/qemu-opts/append_to_null", test_opts_append_to_null);
g_test_add_func("/qemu-opts/append", test_opts_append);
g_test_add_func("/qemu-opts/to_qdict/basic", test_opts_to_qdict_basic);
g_test_add_func("/qemu-opts/to_qdict/filtered", test_opts_to_qdict_filtered);
g_test_add_func("/qemu-opts/to_qdict/duplicates", test_opts_to_qdict_duplicates);
g_test_run();
return 0;
}
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