8 Commits (22680a11ae2a3061c57123bc6afac2f11b7b51a7)

Author	SHA1	Message	Date
Tom DNetto	88c7d19d54	tka: compact TKA storage on startup ... Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	ff168a806e	tka: implement compaction logic ... Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Will Norris	71029cea2d	all: update copyright and license headers ... This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Tom DNetto	58ffe928af	ipn/ipnlocal, tka: Implement TKA synchronization with the control plane ... Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	f580f4484f	tka: move disablement logic out-of-band from AUMs ... It doesn't make a ton of sense for disablement to be communicated as an AUM, because any failure in the AUM or chain mechanism will mean disablement wont function. Instead, tracking of the disablement secrets remains inside the state machine, but actual disablement and communication of the disablement secret is done by the caller. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
David Crawshaw	15b8665787	tka: stable text representation of AUMHash ... This makes debugging easier, you can pass an AUMHash to a printf and get a string that is easy to debug. Also rearrange how directories/files work in the FS store: use the first two characters of the string representation as the prefix directory, and use the entire AUMHash string as the file name. This is again to aid debugging: you can `ls` a directory and line up what prints out easily with what you get from a printf in debug code. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	2 years ago
Tom DNetto	ec4f849079	tka: implement filesystem-based tailchonk implementation ... FS implements Chonk, and given the expected load characteristics (frequent use of AUM() + ChildAUMs(), and infrequent use of Heads() + CommitVerifiedAUMs()), the implementation avoids scanning the filesystem to service AUM() and ChildAUMs(). Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Tom DNetto	cca25f6107	tka: implement Chonk type & an in-memory implementation ... Chonks are responsible for efficient storage of AUMs and other TKA state. For testing/prototyping I've implemented an in-memory version, but once we start to use this from tailscaled we'll need a file-based version. Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago