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0e570a6acc
virTypedParamsValidate currently uses an index based check to find
duplicate parameters. This check does not work. Consider the following
simple example:
We have only 2 keys
A (multiples allowed)
B (multiples NOT allowed)
We are given the following list of parameters to check:
A
A
B
If you work through the validation loop you will see that our last iteration
through the loop has i=2 and j=1. In this case, i > j and keys[j].value.i will
indicate that multiples are not allowed. Both conditionals are satisfied so
an incorrect error will be given: "parameter '%s' occurs multiple times"
This patch replaces the index based check with code that remembers
the name of the last parameter seen and only triggers the error case if
the current parameter name equals the last one. This works because the
list is sorted and duplicate parameters will be grouped together.
In reality, we hit this bug while using selective block migration to migrate
a guest with 5 disks. 5 was apparently just the right number to push i > j
and hit this bug.
virsh migrate --live guestname --copy-storage-all
--migrate-disks vdb,vdc,vdd,vde,vdf
qemu+ssh://dsthost/system
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com>
311 lines
9.2 KiB
C
311 lines
9.2 KiB
C
/*
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* virtypedparamtest.c: Test typed param functions
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*
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* Copyright (C) 2015 Mirantis, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#include <config.h>
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#include <stdio.h>
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#include <virtypedparam.h>
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#include "testutils.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
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typedef struct _TypedParameterTest {
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/* Test name for logging */
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const char *name;
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/* Flags of the "foobar" parameter check */
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int foobar_flags;
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/* Parameters to validate */
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virTypedParameterPtr params;
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/* Amount of parameters */
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int nparams;
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/* Expected error code */
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int expected_errcode;
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/* Expected error message */
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const char *expected_errmessage;
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} TypedParameterTest;
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static int
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testTypedParamsValidate(const void *opaque)
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{
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int rv;
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TypedParameterTest *test = (TypedParameterTest *)opaque;
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virErrorPtr errptr;
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rv = virTypedParamsValidate(
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test->params, test->nparams,
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"foobar", VIR_TYPED_PARAM_STRING | test->foobar_flags,
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"foo", VIR_TYPED_PARAM_INT,
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"bar", VIR_TYPED_PARAM_UINT,
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"zzz", VIR_TYPED_PARAM_UINT,
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NULL);
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if (test->expected_errcode) {
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errptr = virGetLastError();
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rv = (errptr == NULL) || ((rv < 0) &&
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!(errptr->code == test->expected_errcode));
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if (errptr && test->expected_errmessage) {
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rv = STRNEQ(test->expected_errmessage, errptr->message);
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if (rv)
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printf("%s\n", errptr->message);
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}
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}
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return rv;
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}
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#define PARAMS_ARRAY(...) ((virTypedParameter[]){ __VA_ARGS__ })
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#define PARAMS_SIZE(...) ARRAY_CARDINALITY(PARAMS_ARRAY(__VA_ARGS__))
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#define PARAMS(...) \
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.params = PARAMS_ARRAY(__VA_ARGS__), \
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.nparams = PARAMS_SIZE(__VA_ARGS__),
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static int
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testTypedParamsFilter(const void *opaque ATTRIBUTE_UNUSED)
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{
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size_t i, nfiltered;
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int rv = -1;
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virTypedParameter params[] = {
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{ .field = "bar", .type = VIR_TYPED_PARAM_UINT },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT },
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{ .field = "bar", .type = VIR_TYPED_PARAM_UINT },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT }
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};
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virTypedParameterPtr *filtered = NULL;
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nfiltered = virTypedParamsFilter(params, ARRAY_CARDINALITY(params),
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"foo", &filtered);
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if (nfiltered != 3)
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goto cleanup;
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for (i = 0; i < nfiltered; i++) {
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if (filtered[i] != ¶ms[1 + i * 2])
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goto cleanup;
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}
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VIR_FREE(filtered);
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filtered = NULL;
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nfiltered = virTypedParamsFilter(params, ARRAY_CARDINALITY(params),
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"bar", &filtered);
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if (nfiltered != 2)
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goto cleanup;
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for (i = 0; i < nfiltered; i++) {
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if (filtered[i] != ¶ms[i * 2])
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goto cleanup;
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}
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rv = 0;
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cleanup:
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VIR_FREE(filtered);
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return rv;
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}
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static int
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testTypedParamsAddStringList(const void *opaque ATTRIBUTE_UNUSED)
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{
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int rv = 0;
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virTypedParameterPtr params = NULL;
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int nparams = 0, maxparams = 0, i;
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const char *values[] = {
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"foo", "bar", "foobar", NULL
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};
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rv = virTypedParamsAddStringList(¶ms, &nparams, &maxparams, "param",
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values);
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for (i = 0; i < nparams; i++) {
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if (STRNEQ(params[i].field, "param") ||
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STRNEQ(params[i].value.s, values[i]) ||
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params[i].type != VIR_TYPED_PARAM_STRING)
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rv = -1;
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}
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virTypedParamsFree(params, nparams);
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return rv;
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}
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static int
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testTypedParamsGetStringList(const void *opaque ATTRIBUTE_UNUSED)
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{
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size_t i;
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int picked;
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int rv = -1;
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char l = '1';
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const char **strings = NULL;
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virTypedParameter params[] = {
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{ .field = "bar", .type = VIR_TYPED_PARAM_STRING,
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.value = { .s = (char*)"bar1"} },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT },
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{ .field = "bar", .type = VIR_TYPED_PARAM_STRING,
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.value = { .s = (char*)"bar2"} },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "bar", .type = VIR_TYPED_PARAM_STRING,
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.value = { .s = NULL } },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT },
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{ .field = "bar", .type = VIR_TYPED_PARAM_STRING,
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.value = { .s = (char*)"bar3"} }
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};
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picked = virTypedParamsGetStringList(params,
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ARRAY_CARDINALITY(params),
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"bar",
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&strings);
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if (picked < 0)
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goto cleanup;
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for (i = 0; i < picked; i++) {
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if (i == 2) {
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if (strings[i] != NULL)
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goto cleanup;
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continue;
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}
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if (STRNEQLEN(strings[i], "bar", 3))
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goto cleanup;
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if (strings[i][3] != l++)
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goto cleanup;
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}
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rv = 0;
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cleanup:
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VIR_FREE(strings);
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return rv;
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}
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static int
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testTypedParamsValidator(void)
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{
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size_t i;
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int rv = 0;
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TypedParameterTest test[] = {
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{
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.name = "Invalid arg type",
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.foobar_flags = 0,
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PARAMS({ .field = "foobar", .type = VIR_TYPED_PARAM_INT })
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.expected_errcode = VIR_ERR_INVALID_ARG,
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.expected_errmessage =
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"invalid argument: invalid type 'int' for parameter "
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"'foobar', expected 'string'"
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},
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{
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.name = "Extra arg",
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.foobar_flags = 0,
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PARAMS({ .field = "f", .type = VIR_TYPED_PARAM_INT })
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.expected_errcode = VIR_ERR_INVALID_ARG,
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.expected_errmessage =
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"argument unsupported: parameter 'f' not supported"
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},
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{
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.name = "Valid parameters",
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.foobar_flags = 0,
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PARAMS(
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{ .field = "bar", .type = VIR_TYPED_PARAM_UINT },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT }
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)
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.expected_errcode = 0, .expected_errmessage = NULL,
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},
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{
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.name = "Duplicates incorrect",
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.foobar_flags = 0,
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PARAMS(
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{ .field = "bar", .type = VIR_TYPED_PARAM_UINT },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT }
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)
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.expected_errcode = VIR_ERR_INVALID_ARG,
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.expected_errmessage =
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"invalid argument: parameter 'foobar' occurs multiple times"
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},
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{
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.name = "Duplicates OK for marked",
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.foobar_flags = VIR_TYPED_PARAM_MULTIPLE,
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PARAMS(
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{ .field = "bar", .type = VIR_TYPED_PARAM_UINT },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foo", .type = VIR_TYPED_PARAM_INT }
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)
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.expected_errcode = 0, .expected_errmessage = NULL,
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},
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{
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.name = "BUG, non-duplicate marked as duplicate",
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.foobar_flags = VIR_TYPED_PARAM_MULTIPLE,
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PARAMS(
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "foobar", .type = VIR_TYPED_PARAM_STRING },
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{ .field = "zzz", .type = VIR_TYPED_PARAM_UINT },
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)
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.expected_errcode = 0, .expected_errmessage = NULL,
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},
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{
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.name = NULL
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}
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};
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for (i = 0; test[i].name; ++i) {
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if (virtTestRun(test[i].name, testTypedParamsValidate, &test[i]) < 0)
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rv = -1;
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}
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return rv;
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}
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static int
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mymain(void)
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{
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int rv = 0;
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if (testTypedParamsValidator() < 0)
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rv = -1;
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if (virtTestRun("Filtering", testTypedParamsFilter, NULL) < 0)
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rv = -1;
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if (virtTestRun("Get All Strings", testTypedParamsGetStringList, NULL) < 0)
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rv = -1;
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if (virtTestRun("Add string list", testTypedParamsAddStringList, NULL) < 0)
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rv = -1;
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if (rv < 0)
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return EXIT_FAILURE;
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return EXIT_SUCCESS;
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}
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VIRT_TEST_MAIN(mymain)
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