Maybe add a /etc/hosts parser
Categories
(Core :: Networking: DNS, enhancement, P2)
Tracking
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| Tracking | Status | |
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| firefox83 | --- | fixed |
People
(Reporter: valentin, Assigned: valentin)
References
(Blocks 1 open bug)
Details
(Whiteboard: [necko-triaged][trr])
Attachments
(1 file)
We've been avoiding this for a while, mostly because the system resolver already checks this file. But lately we've encountered some issues that seem to require us parsing the file.
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Comment 1•4 years ago
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We should make sure we can handle very large hosts files. We can test the parser on file generated by AdAway. The generated hosts file on my phone has 48000 lines.
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Comment 2•4 years ago
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Thanks for the info, Michal.
I've been thinking that we probably don't want to enable it on Android at the moment, considering TRR isn't enabled there.
However, Android is a great testcase for parsing a big file with limited hardware resources, so I'll make sure to test it before we ship it.
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Updated•4 years ago
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Comment 3•4 years ago
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Updated•4 years ago
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Updated•4 years ago
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Updated•4 years ago
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Pushed by valentin.gosu@gmail.com: https://hg.mozilla.org/integration/autoland/rev/2b1366e8c8ee Exclude domains in /etc/hosts from using TRR r=necko-reviewers,dragana
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Comment 5•4 years ago
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| bugherder | ||
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Comment 7•3 years ago
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I know this issue is resolved, but I want to mention that Firefox fails to parse a large hosts file (mine has 42000 entries a.t.m).
Happens in a fresh profile as well.
FWIW, Chromium-dev 95.0.4624.0 with DoH enabled (same provider, Quad9) does parse the large file.
A hosts file with only 1 entry is parsed, however it takes some time to display the error message.
Linux Mint 19.3; Firefox 91.0.2
Modified preferences:
network.trr.blocklist_cleanup_done ---> true
network.trr.custom_uri --- > https://dns.quad9.net/dns-query
network.trr.mode --- > 2
network.trr.request_timeout_ms --- > 4000
network.trr.uri --- > https://dns.quad9.net/dns-query
Description
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