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tests: add test for 7012 #2015

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tests: add test for 7012 #2015

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4 changes: 4 additions & 0 deletions tests/dns/dns-response-sticky-buffer/README.md
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Test the 'dns.response' sticky buffer.

This test verifies that data in a name field or an rdata field
of a DNS response will trigger a signature.
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When you prepare a new version, could you please add the Redmine ticket reference, here?

5 changes: 5 additions & 0 deletions tests/dns/dns-response-sticky-buffer/test.rules
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# Will alert on name field of Query section in response
alert dns any any -> any any (dns.response; content: "dne.oisf.net"; sid:1; rev:1;)

# Will alert on rdata field of Authority section in response
alert dns any any -> any any (dns.response; content: "ns-110.awsdns-13.com"; sid:2; rev:1;)
19 changes: 19 additions & 0 deletions tests/dns/dns-response-sticky-buffer/test.yaml
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requires:
min-version: 8

pcap: ../../dns-eve-v2-udp-nxdomain-soa/dns-udp-nxdomain-soa.pcap

checks:
- filter:
count: 1
match:
alert.signature_id: 1
direction: to_client
app_proto: dns
- filter:
count: 1
match:
alert.signature_id: 2
direction: to_client
app_proto: dns

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