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net/dns, paths, util/winutil: change net/dns/windowsManager NRPT management to support more than 50 domains.

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AFAICT this isn't documented on MSDN, but based on the issue referenced below,
NRPT rules are not working when a rule specifies > 50 domains.

This patch modifies our NRPT rule generator to split the list of domains
into chunks as necessary, and write a separate rule for each chunk.

For compatibility reasons, we continue to use the hard-coded rule ID, but
as additional rules are required, we generate new GUIDs. Those GUIDs are
stored under the Tailscale registry path so that we know which rules are ours.

I made some changes to winutils to add additional helper functions in support
of both the code and its test: I added additional registry accessors, and also
moved some token accessors from paths to util/winutil.

Fixes https://github.com/tailscale/coral/issues/63

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
This commit is contained in:
Aaron Klotz
2022-05-25 15:51:54 -06:00
parent c16271fb46
commit b005b79236
6 changed files with 466 additions and 131 deletions
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4
cmd/tailscale/depaware.txt
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@@ -63,7 +63,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
tailscale.com/net/tlsdial from tailscale.com/derp/derphttp
tailscale.com/net/tsaddr from tailscale.com/net/interfaces+
💣 tailscale.com/net/tshttpproxy from tailscale.com/derp/derphttp+
💣 tailscale.com/paths from tailscale.com/cmd/tailscale/cli+
tailscale.com/paths from tailscale.com/cmd/tailscale/cli+
tailscale.com/safesocket from tailscale.com/cmd/tailscale/cli+
tailscale.com/syncs from tailscale.com/net/interfaces+
tailscale.com/tailcfg from tailscale.com/cmd/tailscale/cli+
@@ -88,7 +88,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
W tailscale.com/util/endian from tailscale.com/net/netns
tailscale.com/util/groupmember from tailscale.com/cmd/tailscale/cli
tailscale.com/util/lineread from tailscale.com/net/interfaces+
W tailscale.com/util/winutil from tailscale.com/hostinfo
W 💣 tailscale.com/util/winutil from tailscale.com/hostinfo+
tailscale.com/version from tailscale.com/cmd/tailscale/cli+
tailscale.com/version/distro from tailscale.com/cmd/tailscale/cli+
tailscale.com/wgengine/filter from tailscale.com/types/netmap