Commit Graph

5 Commits (9f7cbf6cf14c4a3642c3ffae5e89d605f301734b)

Author SHA1 Message Date
David Anderson 76d99cf01a wgengine/filter: remove the Matches type.
It only served to obscure the underlying slice type without
adding much value.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
chungdaniel 4d56d19b46
control/controlclient, wgengine/filter: extract parsePacketFilter to … (#696)
control/controlclient, wgengine/filter: extract parsePacketFilter to new constructor in wgengine/filter

Signed-off-by: chungdaniel <daniel@tailscale.com>
4 years ago
Brad Fitzpatrick 337c86b89d control/controlclient: don't crash on invalid filter CIDR from server
Fixes #691
4 years ago
Avery Pennarun 5e5e5db75f Appease the "missing copyright header" check.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago
Avery Pennarun 65fbb9c303 wgengine/filter: support subnet mask rules, not just /32 IPs.
This depends on improved support from the control server, to send the
new subnet width (Bits) fields. If these are missing, we fall back to
assuming their value is /32.

Conversely, if the server sends Bits fields to an older client, it will
interpret them as /32 addresses. Since the only rules we allow are
"accept" rules, this will be narrower or equal to the intended rule, so
older clients will simply reject hosts on the wider subnet (fail
closed).

With this change, the internal filter.Matches format has diverged
from the wire format used by controlclient, so move the wire format
into tailcfg and convert it to filter.Matches in controlclient.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
5 years ago