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net/{batching,packet},wgengine/magicsock: export batchingConn (#16848)

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For eventual use by net/udprelay.Server.

Updates tailscale/corp#31164

Signed-off-by: Jordan Whited <jordan@tailscale.com>
This commit is contained in:
Jordan Whited
2025-08-13 13:13:11 -07:00
committed by GitHub
parent f22c7657e5
commit 16bc0a5558
25 changed files with 328 additions and 268 deletions
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8
wgengine/magicsock/magicsock_linux.go
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@@ -516,11 +516,3 @@ func trySetSocketBuffer(pconn nettype.PacketConn, logf logger.Logf) {
}
}
}
var controlMessageSize = -1 // bomb if used for allocation before init
func init() {
// controlMessageSize is set to hold a UDP_GRO or UDP_SEGMENT control
// message. These contain a single uint16 of data.
controlMessageSize = unix.CmsgSpace(2)
}