67 lines
2.3 KiB
Diff
67 lines
2.3 KiB
Diff
From 84780210ac31e430d59b0c6d3d9f522c626b6380 Mon Sep 17 00:00:00 2001
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From: Chuan Zheng <zhengchuan@huawei.com>
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Date: Sat, 30 Jan 2021 16:23:15 +0800
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Subject: [PATCH 13/14] migration: Add compress_level sanity check
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Zlib compression has level from 1 to 9. However Zstd compression has level
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from 1 to 22 (level >= 20 not recommanded). Let's do sanity check here
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to make sure a vaild compress_level is given by user.
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Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
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Signed-off-by: Zeyu Jin <jinzeyu@huawei.com>
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Signed-off-by: Ying Fang <fangying1@huawei.com>
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---
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migration/migration.c | 30 ++++++++++++++++++++++++++++--
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1 file changed, 28 insertions(+), 2 deletions(-)
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diff --git a/migration/migration.c b/migration/migration.c
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index 07dc059251..f86dd8cccd 100644
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--- a/migration/migration.c
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+++ b/migration/migration.c
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@@ -1320,14 +1320,40 @@ void qmp_migrate_set_capabilities(MigrationCapabilityStatusList *params,
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}
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}
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+static bool compress_level_check(MigrationParameters *params, Error **errp)
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+{
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+ switch (params->compress_method) {
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+ case COMPRESS_METHOD_ZLIB:
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+ if (params->compress_level > 9 || params->compress_level < 1) {
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+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level",
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+ "a value in the range of 0 to 9 for Zlib method");
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+ return false;
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+ }
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+ break;
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+#ifdef CONFIG_ZSTD
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+ case COMPRESS_METHOD_ZSTD:
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+ if (params->compress_level > 19 || params->compress_level < 1) {
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+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level",
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+ "a value in the range of 1 to 19 for Zstd method");
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+ return false;
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+ }
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+ break;
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+#endif
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+ default:
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+ error_setg(errp, "Checking compress_level failed for unknown reason");
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+ return false;
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+ }
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+
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+ return true;
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+}
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+
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/*
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* Check whether the parameters are valid. Error will be put into errp
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* (if provided). Return true if valid, otherwise false.
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*/
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static bool migrate_params_check(MigrationParameters *params, Error **errp)
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{
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- if (params->has_compress_level &&
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- (params->compress_level > 9)) {
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+ if (params->has_compress_level && !compress_level_check(params, errp)) {
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error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "compress_level",
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"a value between 0 and 9");
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return false;
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--
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2.27.0
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