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Brad Fitzpatrick 2a67beaacf net/interfaces: bound Linux /proc/net/route parsing ... tailscaled was using 100% CPU on a machine with ~1M lines, 100MB+ of /proc/net/route data. Two problems: in likelyHomeRouterIPLinux, we didn't stop reading the file once we found the default route (which is on the first non-header line when present). Which meant it was finding the answer and then parsing 100MB over 1M lines unnecessarily. Second was that if the default route isn't present, it'd read to the end of the file looking for it. If it's not in the first 1,000 lines, it ain't coming, or at least isn't worth having. (it's only used for discovering a potential UPnP/PMP/PCP server, which is very unlikely to be present in the environment of a machine with a ton of routes) Change-Id: I2c4a291ab7f26aedc13885d79237b8f05c2fd8e4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>		3 years ago
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dns	net/dns/resolvd: properly handle not having "search" entries	3 years ago
dnscache	envknob: add new package for all the strconv.ParseBool(os.Getenv(..))	3 years ago
dnsfallback	net/netns: thread logf into control functions	3 years ago
flowtrack	all: use testingutil.MinAllocsPerRun	3 years ago
interfaces	net/interfaces: bound Linux /proc/net/route parsing	3 years ago
netcheck	envknob: add new package for all the strconv.ParseBool(os.Getenv(..))	3 years ago
neterror	net/{neterror,dns/resolver}: move PacketWasTruncated to neterror from DNS code	3 years ago
netknob	all: disable TCP keep-alives on iOS/Android	3 years ago
netns	net/netns: remove a useless probe of the "ip" command	3 years ago
netstat	all: gofmt with Go 1.17	3 years ago
nettest	net/nettest: deflake TestPipeTimeout	3 years ago
packet	wgengine/netstack: clear TCP ECN bits before giving to gvisor	3 years ago
portmapper	netcheck,portmapper,magicsock: ignore some UDP write errors on Linux	3 years ago
proxymux	net/proxymux: add a listener mux that can run SOCKS and HTTP on a single socket.	3 years ago
socks5	net/tsdial: start of new package to unify all outbound dialing complexity	3 years ago
speedtest	all: fix spelling mistakes	3 years ago
stun	all: gofmt with Go 1.17	3 years ago
tlsdial	envknob: add new package for all the strconv.ParseBool(os.Getenv(..))	3 years ago
tsaddr	ipnlocal, net/{dns,tsaddr,tstun}, wgengine: support MagicDNS on IPv6	3 years ago
tsdial	net/dnscache, net/tsdial: add DNS caching to tsdial UserDial	3 years ago
tshttpproxy	net/tshttpproxy: use correct size for Windows BOOL argument	3 years ago
tstun	go.mod: bump netstack, switch to upstream netstack	3 years ago