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[cli] update CLI DNS callbacks to output error for long/invalid names (#11436)

Browse Source 
This commit updates the DNS callbacks `HandleDnsBrowseResponse()`,
`HandleDnsServiceResponse()`, `HandleDnsRecordResponse()`, etc.,
to output an error if the query name is invalid or too long.

This change replaces previous `IgnoreError()` calls with specific
error handling code for these cases. This should help address CLI
Fuzzer test failures where long or invalid names might be generated
as CLI input.
This commit is contained in:
Abtin Keshavarzian
2025-04-23 13:23:55 -07:00
committed by GitHub
parent 20aefc2215
commit b0176443cc
1 changed files with 58 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/cli/cli_dns.cpp
+58 -55
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@@ -573,28 +573,29 @@ void Dns::HandleDnsAddressResponse(otError aError, const otDnsAddressResponse *a
void Dns::HandleDnsAddressResponse(otError aError, const otDnsAddressResponse *aResponse)
{
otError error;
char hostName[OT_DNS_MAX_NAME_SIZE];
otIp6Address address;
uint32_t ttl;
uint16_t index = 0;
IgnoreError(otDnsAddressResponseGetHostName(aResponse, hostName, sizeof(hostName)));
SuccessOrExit(error = otDnsAddressResponseGetHostName(aResponse, hostName, sizeof(hostName)));
OutputFormat("DNS response for %s - ", hostName);
if (aError == OT_ERROR_NONE)
{
uint16_t index = 0;
error = aError;
SuccessOrExit(error);
while (otDnsAddressResponseGetAddress(aResponse, index, &address, &ttl) == OT_ERROR_NONE)
{
OutputIp6Address(address);
OutputFormat(" TTL:%lu ", ToUlong(ttl));
index++;
}
while (otDnsAddressResponseGetAddress(aResponse, index, &address, &ttl) == OT_ERROR_NONE)
{
OutputIp6Address(address);
OutputFormat(" TTL:%lu ", ToUlong(ttl));
index++;
}
OutputNewLine();
OutputResult(aError);
exit:
OutputResult(error);
}
#if OPENTHREAD_CONFIG_DNS_CLIENT_SERVICE_DISCOVERY_ENABLE
@@ -630,39 +631,39 @@ void Dns::HandleDnsBrowseResponse(otError aError, const otDnsBrowseResponse *aRe
void Dns::HandleDnsBrowseResponse(otError aError, const otDnsBrowseResponse *aResponse)
{
Error error;
char name[OT_DNS_MAX_NAME_SIZE];
char label[OT_DNS_MAX_LABEL_SIZE];
uint8_t txtBuffer[kMaxTxtDataSize];
otDnsServiceInfo serviceInfo;
uint16_t index = 0;
IgnoreError(otDnsBrowseResponseGetServiceName(aResponse, name, sizeof(name)));
SuccessOrExit(error = otDnsBrowseResponseGetServiceName(aResponse, name, sizeof(name)));
OutputLine("DNS browse response for %s", name);
if (aError == OT_ERROR_NONE)
error = aError;
SuccessOrExit(error);
while (otDnsBrowseResponseGetServiceInstance(aResponse, index, label, sizeof(label)) == OT_ERROR_NONE)
{
uint16_t index = 0;
OutputLine("%s", label);
index++;
while (otDnsBrowseResponseGetServiceInstance(aResponse, index, label, sizeof(label)) == OT_ERROR_NONE)
serviceInfo.mHostNameBuffer = name;
serviceInfo.mHostNameBufferSize = sizeof(name);
serviceInfo.mTxtData = txtBuffer;
serviceInfo.mTxtDataSize = sizeof(txtBuffer);
if (otDnsBrowseResponseGetServiceInfo(aResponse, label, &serviceInfo) == OT_ERROR_NONE)
{
OutputLine("%s", label);
index++;
serviceInfo.mHostNameBuffer = name;
serviceInfo.mHostNameBufferSize = sizeof(name);
serviceInfo.mTxtData = txtBuffer;
serviceInfo.mTxtDataSize = sizeof(txtBuffer);
if (otDnsBrowseResponseGetServiceInfo(aResponse, label, &serviceInfo) == OT_ERROR_NONE)
{
OutputDnsServiceInfo(kIndentSize, serviceInfo);
}
OutputNewLine();
OutputDnsServiceInfo(kIndentSize, serviceInfo);
}
OutputNewLine();
}
OutputResult(aError);
exit:
OutputResult(error);
}
void Dns::HandleDnsServiceResponse(otError aError, const otDnsServiceResponse *aResponse, void *aContext)
@@ -672,30 +673,31 @@ void Dns::HandleDnsServiceResponse(otError aError, const otDnsServiceResponse *a
void Dns::HandleDnsServiceResponse(otError aError, const otDnsServiceResponse *aResponse)
{
otError error;
char name[OT_DNS_MAX_NAME_SIZE];
char label[OT_DNS_MAX_LABEL_SIZE];
uint8_t txtBuffer[kMaxTxtDataSize];
otDnsServiceInfo serviceInfo;
IgnoreError(otDnsServiceResponseGetServiceName(aResponse, label, sizeof(label), name, sizeof(name)));
SuccessOrExit(error = otDnsServiceResponseGetServiceName(aResponse, label, sizeof(label), name, sizeof(name)));
OutputLine("DNS service resolution response for %s for service %s", label, name);
if (aError == OT_ERROR_NONE)
{
serviceInfo.mHostNameBuffer = name;
serviceInfo.mHostNameBufferSize = sizeof(name);
serviceInfo.mTxtData = txtBuffer;
serviceInfo.mTxtDataSize = sizeof(txtBuffer);
error = aError;
SuccessOrExit(error);
if (otDnsServiceResponseGetServiceInfo(aResponse, &serviceInfo) == OT_ERROR_NONE)
{
OutputDnsServiceInfo(/* aIndentSize */ 0, serviceInfo);
OutputNewLine();
}
serviceInfo.mHostNameBuffer = name;
serviceInfo.mHostNameBufferSize = sizeof(name);
serviceInfo.mTxtData = txtBuffer;
serviceInfo.mTxtDataSize = sizeof(txtBuffer);
if (otDnsServiceResponseGetServiceInfo(aResponse, &serviceInfo) == OT_ERROR_NONE)
{
OutputDnsServiceInfo(/* aIndentSize */ 0, serviceInfo);
OutputNewLine();
}
OutputResult(aError);
exit:
OutputResult(error);
}
#endif // OPENTHREAD_CONFIG_DNS_CLIENT_SERVICE_DISCOVERY_ENABLE
@@ -708,15 +710,16 @@ void Dns::HandleDnsRecordResponse(otError aError, const otDnsRecordResponse *aRe
void Dns::HandleDnsRecordResponse(otError aError, const otDnsRecordResponse *aResponse)
{
otError error;
char name[OT_DNS_MAX_NAME_SIZE];
uint8_t data[kMaxRrDataSize];
otDnsRecordInfo recordInfo;
IgnoreError(otDnsRecordResponseGetQueryName(aResponse, name, sizeof(name)));
SuccessOrExit(error = otDnsRecordResponseGetQueryName(aResponse, name, sizeof(name)));
OutputLine("DNS query response for %s ", name);
SuccessOrExit(aError);
error = aError;
SuccessOrExit(error);
for (uint16_t index = 0;; index++)
{
@@ -724,17 +727,17 @@ void Dns::HandleDnsRecordResponse(otError aError, const otDnsRecordResponse *aRe
recordInfo.mNameBuffer = name;
recordInfo.mNameBufferSize = sizeof(name);
recordInfo.mDataBuffer = data;
recordInfo.mDataBufferSize = sizeof(name);
recordInfo.mDataBufferSize = sizeof(data);
aError = otDnsRecordResponseGetRecordInfo(aResponse, index, &recordInfo);
error = otDnsRecordResponseGetRecordInfo(aResponse, index, &recordInfo);
if (aError == OT_ERROR_NOT_FOUND)
if (error == OT_ERROR_NOT_FOUND)
{
aError = OT_ERROR_NONE;
error = OT_ERROR_NONE;
ExitNow();
}
SuccessOrExit(aError);
SuccessOrExit(error);
OutputLine("%u)", index);
OutputLine(kIndentSize, "RecordType:%u, RecordLength:%u, TTL:%lu, Section:%s", recordInfo.mRecordType,
@@ -752,7 +755,7 @@ void Dns::HandleDnsRecordResponse(otError aError, const otDnsRecordResponse *aRe
}
exit:
OutputResult(aError);
OutputResult(error);
}
const char *Dns::RecordSectionToString(otDnsRecordSection aSection)