Commit Graph

61 Commits

Author SHA1 Message Date
d1239867ae Add support for timeout action
There is also capability of performing another new authentic knock sequence to refresh their timeout timer so they can remain open
2024-04-20 15:41:26 -06:00
af0c955987 upgrade golang.org/x/exp package
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2024-04-20 13:28:25 -06:00
caf5bd5af6 Fix incorrect string formatting directive 2024-04-20 13:27:18 -06:00
a52f3f0d43 fix incorrect logic in rotateSequence
This was introduced in the previous few commits when adding support for multiple secrets in knockd.  The logic to push and pop entries from the knockSequences slice needed to be adjusted to cound for the number of secrets that are loaded by hypd.
2024-04-20 13:27:00 -06:00
1e195c3768 fix client broke from last commit
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2024-04-19 22:08:16 -06:00
2951c1f684 add support for multiple secrets (independent agents) on the knock daemon
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This allows you to generate more than one pre-shared secret on the knock daemon so that you can distribute the secret and control revocation at a more granular level.  Each additional secret creates one more concurrent authentic knock sequence.
2024-04-19 22:04:00 -06:00
334407e309 mislinked
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2024-04-19 20:34:07 -06:00
348fe6296b Add example vulnerabilities
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2024-04-19 20:20:34 -06:00
b8a16fed7f Minor formatting fixes
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2024-04-19 19:21:56 -06:00
59cd35a51e Merge branch 'main' of https://deadbeef.codes/steven/hyp
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2024-04-19 19:19:14 -06:00
35f58da4f0 Rewrite readme.md
Make the project goal more clear, less personal opinion mentioned.  Mention how hyp differentiates itself, how the authentic knock sequence is determined with a diagram.  Provide instructions to build.
2024-04-19 19:18:39 -06:00
034f3024b6 add diagram
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2024-04-19 18:46:43 -06:00
05e37193b4 Make the success action configurable
Instead of using the hardcoded proof of concept for iptables, the success action is now read from the hypd configuration file and whatever is defined there is executed.
2024-04-18 11:22:03 -06:00
79aa8136c5 add openwrt-wireguard example
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2024-04-18 09:39:21 -06:00
344d874c02 minor formatting changes 2024-04-18 09:39:05 -06:00
1ffadf5c86 BREAKING: Interface name is now specified by configuration file
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The syntax for the hypd server command has changed.  Now instead of specifying an interface name as an argument to the server command, you instead specify a configuration file path.

Example:
./hypd server hypdconfig.json
2024-04-17 19:41:24 -06:00
e95b4972da add scaffolding for configuration file 2024-04-17 19:12:01 -06:00
a0d118b987 Ensure generated code is checked in
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2024-04-16 20:09:54 -06:00
e9aefaf8d6 README add/edit 2024-04-16 20:09:37 -06:00
beed9726e3 remove unreferenced macros...
These were previously used while trying to parse out specific headers.  They are no longer required though because the current length bounds checks covers edge cases.
2024-04-16 20:09:01 -06:00
e85b644e82 Add maxjitter flag to hyp client
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This to allow configurable time between knock sequence transmissions.  It's important the sequence arrive in the correct order, and some networks have multiple paths.
2024-04-16 19:44:25 -06:00
2c43affac9 fix typo in help message 2024-04-16 19:43:39 -06:00
fbf1758ccb added generated go code from ebpg-go
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2024-04-14 21:03:22 -06:00
ffb4b7681f Merge branch 'main' of https://deadbeef.codes/steven/hyp
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2024-04-14 21:01:03 -06:00
7f2e3c0ed9 Added pre-compiled ebpf programs 2024-04-14 21:00:31 -06:00
4ec16513ac give meaningful names to build artifacts
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2024-04-14 19:18:35 -06:00
0d113b4e8b fix dist files path for releases
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2024-04-14 19:05:11 -06:00
8cd537cd79 Merge branch 'main' of https://deadbeef.codes/steven/hyp
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2024-04-14 18:39:17 -06:00
80043a571d release on tag 2024-04-14 18:39:08 -06:00
998c9e217c add build badge to readme
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2024-04-14 18:20:05 -06:00
977aef9ee2 separate hyp and hypd build into different steps, add windows build
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2024-04-14 18:19:52 -06:00
5f10c27b0f add knock sequence timeout
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This provides another layer of additional protection against sweep attacks by ensuring the correct sequence be entered rapidly, within 3 seconds by default.  It also prevents a client from sitting stuck forever part way through an old knock sequence.
2024-04-14 18:14:24 -06:00
0b876665d5 add step to create symlinks - required for compiling eBPF program
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2024-04-14 09:59:23 -06:00
d422724556 source /root/.profile
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2024-04-14 09:54:43 -06:00
a73854e040 do explicitly create not create /dist, it's created during mount
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2024-04-14 09:53:52 -06:00
d40147d61c source command is a bash thing
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it doesn't exist in sh
2024-04-14 09:10:35 -06:00
3cbd6eace2 add public release volume to build pipeline
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Allows us to get the latest build at any time from: https://public.deadbeef.codes/build/
2024-04-14 08:49:10 -06:00
42e5679570 Fix EOF error when building in dockerfile
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2024-04-14 08:43:27 -06:00
54159e2e5e Add golang bin to path of build image
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2024-04-14 08:29:21 -06:00
e197990185 mfw: half my commits are fixing yaml indentations
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2024-04-13 23:00:02 -06:00
f3d84f09fd fix indenting i do love yaml tho
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2024-04-13 22:59:21 -06:00
0382892f73 add condition for release
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2024-04-13 22:58:24 -06:00
cb20f91223 add CICD pipeline (untested)
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2024-04-13 22:56:21 -06:00
2efe3344b4 knock frames should not contain any data, only headers 2024-04-13 21:50:20 -06:00
0ad3e2b0d4 enter eBPF, libpcap and CGO = bloat 2024-04-13 21:22:22 -06:00
3ae568639e add flag to specify alternative filepath to secret
For the hyp client to be able to support multiple servers, each with their own secret, this capability is requried.
2024-04-11 15:31:08 -06:00
ead7578544 change pcap snaplen to 126 bytes
We really only care getting as far as the UDP header and can discard the rest.  This should reduce load, and perhaps enable full pcap with ports on the BPF filter

UDP header = 8 bytes
IPv4 max size = 60 bytes
IPv6 fixed size = 40 bytes
Ethernet header size = 18 bytes
2024-04-11 15:21:48 -06:00
3ff47dfa19 use cobra args, not os.Args 2024-04-10 21:51:00 -06:00
291cbaabd4 BREAKING: changes to CLI interface, moved to cobra CLI
To better support configuration and user friendliness, migrated to cobra based CLI.  The source tree structure has also changed to single go module, the server has been renamed hypd and client has been named hyp.  The original structure came into being organically, but now that the vision is more complete it's best to make these adjustments now.
2024-04-10 21:42:38 -06:00
cca8310dd1 Change license from GPLv3 to BSD3 2024-04-10 06:10:38 -06:00