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History

Denton Gentry ebc630c6c0 net/interfaces: also allow link-local for AzureAppServices. In May 2021, Azure App Services used 172.16.x.x addresses: ``` 10: eth0@if11: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue state UP link/ether 02:42:ac:10:01:03 brd ff:ff:ff:ff:ff:ff inet 172.16.1.3/24 brd 172.16.1.255 scope global eth0 valid_lft forever preferred_lft forever ``` Now it uses link-local: ``` 2: eth0@if6: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 qdisc noqueue state UP link/ether 8a:30:1f:50:1d:23 brd ff:ff:ff:ff:ff:ff inet 169.254.129.3/24 brd 169.254.129.255 scope global eth0 valid_lft forever preferred_lft forever ``` This is reasonable for them to choose to do, it just broke the handling in net/interfaces. This PR proposes to: 1. Always allow link-local in LocalAddresses() if we have no better address available. 2. Continue to make isUsableV4() conditional on an environment we know requires it. I don't love the idea of having to discover these environments one by one, but I don't understand the consequences of making isUsableV4() return true unconditionally. It makes isUsableV4() essentially always return true and perform no function. Fixes https://github.com/tailscale/tailscale/issues/7603 Signed-off-by: Denton Gentry <dgentry@tailscale.com>		2 years ago
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connstats	net/connstats: fix ticker in NewStatistics (#7225 )	2 years ago
dns	various: pass logger.Logf through to more places	2 years ago
dnscache	tstest: add method to Replace values for tests	2 years ago
dnsfallback	various: pass logger.Logf through to more places	2 years ago
flowtrack	all: update copyright and license headers	2 years ago
interfaces	net/interfaces: also allow link-local for AzureAppServices.	2 years ago
memnet	net/memnet: rename from net/nettest	2 years ago
netaddr	all: update copyright and license headers	2 years ago
netcheck	sockstats: switch label to enum	2 years ago
neterror	all: update copyright and license headers	2 years ago
netknob	all: update copyright and license headers	2 years ago
netns	net/interfaces, net/netns: add node attributes to control default interface getting and binding	2 years ago
netstat	net/{netns,netstat}: use new x/sys/cpu.IsBigEndian	2 years ago
netutil	all: replace /kb/ links with /s/ equivalents	2 years ago
packet	all: update copyright and license headers	2 years ago
ping	all: update copyright and license headers	2 years ago
portmapper	sockstats: switch label to enum	2 years ago
proxymux	all: update copyright and license headers	2 years ago
routetable	net/routetable: include unknown flags in the routetable doctor output	2 years ago
socks5	net/socks5: add password auth support	2 years ago
sockstats	sockstats: remove per-interface stats from Get	2 years ago
speedtest	all: update copyright and license headers	2 years ago
stun	all: use Go 1.20's bytes.Clone	2 years ago
tlsdial	health, net/tlsdial: add healthcheck for self-signed cert	2 years ago
tsaddr	all: replace /kb/ links with /s/ equivalents	2 years ago
tsdial	all: update copyright and license headers	2 years ago
tshttpproxy	all: use tstest.Replace more	2 years ago
tstun	wgengine: start logging DISCO frames to pcap stream	2 years ago
wsconn	all: update copyright and license headers	2 years ago