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397f7e5c0e
Add full support for RFC 9460's SvcParams list.
Amend the existing `dns_svcb_rr` record by a vector of new
`dns_svcb_param` records containing aptly typed SvcParamKey and
SvcParamValue pairs. Example output:
```
@load base/protocols/dns
event dns_HTTPS( c: connection , msg: dns_msg , ans: dns_answer , https: dns_svcb_rr ) {
for (_, param in https$svc_params)
print to_json(param); # filter uninitialised values
}
```
```
$ dig https cloudflare-ech.com +short | tr [:space:] \\n
1
.
alpn="h3,h2"
ipv4hint=104.18.10.118,104.18.11.118
ech=AEX+DQBBHgAgACBGL2e9TiFwjK/w1Zg9AmRm7mgXHz3PjffP0mTFNMxmDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA=
ipv6hint=2606:4700::6812:a76,2606:4700::6812:b76
```
```
{"key":1,"alpn":["h3","h2"]}
{"key":4,"hint":["104.18.10.118","104.18.11.118"]}
{"key":5,"ech":"AEX+DQBBHgAgACBGL2e9TiFwjK/w1Zg9AmRm7mgXHz3PjffP0mTFNMxmDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA="}
{"key":6,"hint":["2606:4700::6812:a76","2606:4700::6812:b76"]}
```
Values with malformed data or belonging to invalid/reserved keys
are passed raw bytes in network order for script-level inspection.
Follow up to "Initial Support to DNS SVCB/HTTPS RR"
https://github.com/zeek/zeek/pull/1808
8 lines
1.4 KiB
Text
8 lines
1.4 KiB
Text
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
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[key=4, mandatory=<uninitialized>, alpn=<uninitialized>, p=<uninitialized>, hint=[213.108.108.101], ech=<uninitialized>, raw=<uninitialized>]
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[key=5, mandatory=<uninitialized>, alpn=<uninitialized>, p=<uninitialized>, hint=<uninitialized>, ech=AMD+DQA8agAgACCuY19tSB4Tb5cnVHw9eCEj629o/whTJgMysNszoM7KSgAEAAEAAQANY292ZXIuZGVmby5pZQAA/g0APEcAIAAg8InmybO7/fiQqDA30bs6zU4TEkcHY3ExOgVOmpIPcWoABAABAAEADWNvdmVyLmRlZm8uaWUAAP4NADwiACAAIO4CLZ79TKIxJXvbhF13BQo7n8/umXWXCI4dydnNfjoFAAQAAQABAA1jb3Zlci5kZWZvLmllAAA=, raw=<uninitialized>]
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[key=6, mandatory=<uninitialized>, alpn=<uninitialized>, p=<uninitialized>, hint=[2a00:c6c0:0:116:5::10], ech=<uninitialized>, raw=<uninitialized>]
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[key=1, mandatory=<uninitialized>, alpn=[h3, h2], p=<uninitialized>, hint=<uninitialized>, ech=<uninitialized>, raw=<uninitialized>]
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[key=4, mandatory=<uninitialized>, alpn=<uninitialized>, p=<uninitialized>, hint=[104.18.10.118, 104.18.11.118], ech=<uninitialized>, raw=<uninitialized>]
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[key=5, mandatory=<uninitialized>, alpn=<uninitialized>, p=<uninitialized>, hint=<uninitialized>, ech=AEX+DQBBdAAgACDB6UNjy9kyv48V6cEOb99HnrfJuiTGKjW9A05sDxhcKQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA=, raw=<uninitialized>]
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[key=6, mandatory=<uninitialized>, alpn=<uninitialized>, p=<uninitialized>, hint=[2606:4700::6812:a76, 2606:4700::6812:b76], ech=<uninitialized>, raw=<uninitialized>]
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