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Author SHA1 Message Date
e60e002863 Merge pull request 'woodpecker CI' (#23) from woodpecker-ci into main
Reviewed-on: Deuxfleurs/diplonat#23
2024-03-20 17:02:24 +00:00
166d74649a woodpecker CI 2024-03-20 17:45:09 +01:00
58ac0e3758 Merge pull request 'STUN actor: try to avoid ip address flapping' (#21) from stun-keep-values into main
Reviewed-on: Deuxfleurs/diplonat#21
2024-01-16 15:05:01 +00:00
843104dad7 stun actor: add back log message to inform of autodiscovery result 2024-01-16 15:51:36 +01:00
6613ea347d stun actor: if no address is found but an address existed <15m ago, keep it 2024-01-16 15:38:20 +01:00
097a2a029d refactor stun_actor 2024-01-16 15:24:34 +01:00
5a4bd88903 dockerfile: update rust version 2024-01-16 15:21:45 +01:00
05872634a4 Merge pull request 'public IP address autodiscovery' (#20) from stun into main
Reviewed-on: Deuxfleurs/diplonat#20
2023-04-21 09:56:21 +00:00
f5fc635b75 match numeric protocol values 2023-04-20 14:53:20 +02:00
d27173a2b7 debug 2023-04-20 14:29:38 +02:00
48da5b61ac better error handling 2023-04-20 14:14:30 +02:00
21ab77b828 Remove ACME options from tests 2023-04-05 09:51:50 +02:00
71bfd5be2d Remove ACME config, not used as we are doing ACME in Tricot now 2023-04-05 09:50:26 +02:00
c356c4d1c4 IPv6-only mode 2023-04-05 09:47:58 +02:00
f410230240 parse private_ip earlier 2023-04-04 19:06:33 +02:00
b3f76f272a Remove .rustfmt.toml and move to standard rustfmt format (4 spaces) 2023-04-04 18:48:52 +02:00
2d39adcabb cargo fmt 2023-04-04 18:48:10 +02:00
615f926618 Add STUN actor that saves autodiscovered IPv4/IPv6 to Consul 2023-04-04 18:46:14 +02:00
e64be9e881 Merge pull request 'firewall: open ports in ipv6 as well as ipv4 (using ip6tables)' (#19) from fw-ipv6 into main
Reviewed-on: Deuxfleurs/diplonat#19
2023-04-04 12:13:19 +00:00
846c4344aa firewall: open ports in ipv6 as well as ipv4 (using ip6tables) 2023-04-04 13:33:54 +02:00
eba95c9b28 Merge pull request 'CI: make rustfmt work in nix' (#17) from ci-fmt into main
Reviewed-on: Deuxfleurs/diplonat#17
2022-12-02 11:38:34 +00:00
75aa6405f2
CI: make rustfmt work in nix 2022-12-02 12:36:55 +01:00
f306e8dc8d Merge pull request 'Make repoa Nix flake' (#16) from nix-flake into main
Reviewed-on: Deuxfleurs/diplonat#16
2022-12-01 16:51:20 +00:00
f8431271d9
Merge branch 'consul-tls' into nix-flake 2022-12-01 17:50:46 +01:00
2a910c7af2
Default value for skip tls parameter 2022-12-01 17:49:57 +01:00
04528d1e60
Make repo a nix flake 2022-12-01 17:38:04 +01:00
e7f6c15bc1
Add possibility to skip tls verification for consul 2022-08-24 18:22:00 +02:00
862e8ce876
Add license in the readme 2022-04-23 11:58:34 +02:00
5483db8dd4
Add the AGPLv3 license 2022-04-23 11:57:06 +02:00
730c9049ad
Update Rust version in docker build 2021-12-30 20:49:48 +01:00
04bdd029fe
Add TLS support for Consul 2021-12-30 20:42:56 +01:00
4560622fa1 Merge pull request 'Allow Diplonat to automatically detect it's private IP' (#12) from autodetect-private-ip into main
Reviewed-on: Deuxfleurs/diplonat#12
2021-12-28 11:56:12 +01:00
7760b9c58f repaired test, now that private IP is an Option 2021-12-28 10:43:10 +01:00
3b9e75634a
Allow Diplonat to automatically detect it's private IP 2021-12-25 19:23:18 +01:00
27 changed files with 5649 additions and 1395 deletions

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@ -1,24 +0,0 @@
---
kind: pipeline
name: default
workspace:
base: /drone/diplonat
steps:
- name: code style
image: rust:1.47
commands:
- rustup toolchain install nightly-x86_64-unknown-linux-gnu
- rustup component add rustfmt --toolchain nightly
- cargo +nightly fmt --all -- --check
# - name: code quality
# image: rust:1.47
# commands:
# - cargo clippy -- --deny warnings
- name: test
image: rust:1.47
commands:
- cargo build --verbose --all
- cargo test --verbose --all

4
.gitignore vendored
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@ -1,3 +1,5 @@
target/ target
result
result-bin
*.swp *.swp
.env .env

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@ -1,75 +0,0 @@
unstable_features = true
array_width = 60
attr_fn_like_width = 70
binop_separator = "Front"
blank_lines_lower_bound = 0
blank_lines_upper_bound = 1
brace_style = "SameLineWhere"
chain_width = 60
color = "Auto"
combine_control_expr = true
comment_width = 80
condense_wildcard_suffixes = true
control_brace_style = "AlwaysSameLine"
disable_all_formatting = false
empty_item_single_line = true
enum_discrim_align_threshold = 0
error_on_line_overflow = true
error_on_unformatted = true
fn_args_layout = "Tall"
fn_call_width = 60
fn_single_line = true
force_explicit_abi = true
force_multiline_blocks = false
format_code_in_doc_comments = true
# format_generated_files = true
format_macro_matchers = true
format_macro_bodies = true
format_strings = true
hard_tabs = false
#hex_literal_case = "Lower"
hide_parse_errors = false
ignore = []
imports_indent = "Block"
imports_layout = "Mixed"
indent_style = "Block"
inline_attribute_width = 0
license_template_path = ""
match_arm_blocks = true
match_arm_leading_pipes = "Never"
match_block_trailing_comma = false
max_width = 100
merge_derives = true
imports_granularity = "Crate"
newline_style = "Unix"
normalize_comments = true
normalize_doc_attributes = true
overflow_delimited_expr = false
remove_nested_parens = true
reorder_impl_items = true
reorder_imports = true
group_imports = "StdExternalCrate"
reorder_modules = true
report_fixme = "Unnumbered"
report_todo = "Unnumbered"
required_version = "1.4.37"
skip_children = false
single_line_if_else_max_width = 50
space_after_colon = true
space_before_colon = false
#space_around_ranges = false
struct_field_align_threshold = 0
struct_lit_single_line = true
struct_lit_width = 18
struct_variant_width = 35
tab_spaces = 2
trailing_comma = "Vertical"
trailing_semicolon = false
type_punctuation_density = "Wide"
use_field_init_shorthand = false
use_small_heuristics = "Off"
use_try_shorthand = true
version = "Two"
where_single_line = true
wrap_comments = true

26
.woodpecker.yml Normal file
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@ -0,0 +1,26 @@
when:
event:
- push
- pull_request
- tag
- cron
- manual
steps:
- name: check formatting
image: nixpkgs/nix:nixos-22.05
environment:
NIX_PATH: 'nixpkgs=channel:nixos-22.05'
commands:
- nix-shell -p cargo -p rustfmt --run 'cargo fmt -- --check'
- name: build
image: nixpkgs/nix:nixos-22.05
commands:
- nix build --extra-experimental-features nix-command --extra-experimental-features flakes .#debug.x86_64-linux.diplonat
- name: test
image: nixpkgs/nix:nixos-22.05
commands:
- nix build --extra-experimental-features nix-command --extra-experimental-features flakes .#test.x86_64-linux.diplonat
- ./result-bin/bin/diplonat-*

1568
Cargo.lock generated

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2828
Cargo.nix Normal file

File diff suppressed because it is too large Load diff

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@ -10,13 +10,15 @@ edition = "2018"
anyhow = "1.0.28" anyhow = "1.0.28"
envy = "0.4" envy = "0.4"
futures = "0.3.5" futures = "0.3.5"
igd = { version = "0.10.0", features = ["aio"] } get_if_addrs = "0.5"
igd = { version = "0.12.0", features = ["aio"] }
iptables = "0.2.2" iptables = "0.2.2"
log = "0.4" log = "0.4"
pretty_env_logger = "0.4" pretty_env_logger = "0.4"
regex = "1" regex = "1"
reqwest = { version = "0.10", features = ["json"] } reqwest = { version = "0.11", default-features = false, features = ["json", "rustls-tls-manual-roots" ] }
serde = { version = "1.0.107", features = ["derive"] } serde = { version = "1.0.107", features = ["derive"] }
serde-lexpr = "0.1.1" serde-lexpr = "0.1.1"
serde_json = "1.0.53" serde_json = "1.0.53"
tokio = "0.2" tokio = { version = "1", features = ["sync", "rt-multi-thread", "net", "macros"] }
stun-client = "0.1.2"

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@ -1,7 +1,7 @@
FROM debian:bullseye-slim as builder FROM rust:1.69-bullseye as builder
RUN apt-get update && \ RUN apt-get update && \
apt-get install -y rustc cargo libssl-dev pkg-config apt-get install -y libssl-dev pkg-config
WORKDIR /srv WORKDIR /srv

661
LICENSE Normal file
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@ -0,0 +1,661 @@
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Everyone is permitted to copy and distribute verbatim copies
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the scope of its coverage, prohibits the exercise of, or is
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or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
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excuse you from the conditions of this License. If you cannot convey a
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not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
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shall include the Corresponding Source for any work covered by version 3
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14. Revised Versions of this License.
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Each version is given a distinguishing version number. If the
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If the Program specifies that a proxy can decide which future
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IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
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Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

View file

@ -1,6 +1,8 @@
Diplonat Diplonat
======== ========
[![status-badge](https://woodpecker.deuxfleurs.fr/api/badges/40/status.svg)](https://woodpecker.deuxfleurs.fr/repos/40)
## Feature set ## Feature set
* [X] (Re)Configure NAT via UPNP/IGD (prio: high) * [X] (Re)Configure NAT via UPNP/IGD (prio: high)
@ -40,13 +42,10 @@ cargo build
consul agent -dev # in a separate terminal consul agent -dev # in a separate terminal
# adapt following values to your configuration # adapt following values to your configuration
export DIPLONAT_PRIVATE_IP="192.168.0.18"
export DIPLONAT_REFRESH_TIME="60"
export DIPLONAT_EXPIRATION_TIME="300"
export DIPLONAT_CONSUL_NODE_NAME="lheureduthe" export DIPLONAT_CONSUL_NODE_NAME="lheureduthe"
export DIPLONAT_FIREWALL_ENABLE="true"
export DIPLONAT_FIREWALL_REFRESH_TIME="300"
export DIPLONAT_IGD_ENABLE="true"
export DIPLONAT_IGD_PRIVATE_IP="192.168.0.18"
export DIPLONAT_IGD_REFRESH_TIME="60"
export DIPLONAT_IGD_EXPIRATION_TIME="300"
export RUST_LOG=debug export RUST_LOG=debug
cargo run cargo run
``` ```
@ -89,3 +88,7 @@ consul services register -name=fake_dns -tag="(diplonat (udp_port 53) (tcp_port
consul services register -name=fake_irc -tag="(diplonat (udp_port 6667 6666))" consul services register -name=fake_irc -tag="(diplonat (udp_port 6667 6666))"
consul services -id=example consul services -id=example
``` ```
## License
This software is published under the AGPLv3 license.

View file

@ -5,13 +5,10 @@ services:
image: darkgallium/amd64_diplonat:v2 image: darkgallium/amd64_diplonat:v2
network_mode: host # required by UPNP/IGD network_mode: host # required by UPNP/IGD
environment: environment:
DIPLONAT_PRIVATE_IP: 192.168.0.18
DIPLONAT_REFRESH_TIME: 60
DIPLONAT_EXPIRATION_TIME: 300
DIPLONAT_CONSUL_NODE_NAME: lheureduthe DIPLONAT_CONSUL_NODE_NAME: lheureduthe
DIPLONAT_FIREWALL_ENABLE: true
DIPLONAT_FIREWALL_REFRESH_TIME: 60
DIPLONAT_IGD_ENABLE: true
DIPLONAT_IGD_PRIVATE_IP: 192.168.0.18
DIPLONAT_IGD_EXPIRATION_TIME: 300
DIPLONAT_IGD_REFRESH_TIME: 60
RUST_LOG: debug RUST_LOG: debug

108
flake.lock Normal file
View file

@ -0,0 +1,108 @@
{
"nodes": {
"cargo2nix": {
"inputs": {
"flake-compat": "flake-compat",
"flake-utils": "flake-utils",
"nixpkgs": [
"nixpkgs"
],
"rust-overlay": "rust-overlay"
},
"locked": {
"lastModified": 1666087781,
"narHash": "sha256-trKVdjMZ8mNkGfLcY5LsJJGtdV3xJDZnMVrkFjErlcs=",
"owner": "Alexis211",
"repo": "cargo2nix",
"rev": "a7a61179b66054904ef6a195d8da736eaaa06c36",
"type": "github"
},
"original": {
"owner": "Alexis211",
"repo": "cargo2nix",
"rev": "a7a61179b66054904ef6a195d8da736eaaa06c36",
"type": "github"
}
},
"flake-compat": {
"flake": false,
"locked": {
"lastModified": 1650374568,
"narHash": "sha256-Z+s0J8/r907g149rllvwhb4pKi8Wam5ij0st8PwAh+E=",
"owner": "edolstra",
"repo": "flake-compat",
"rev": "b4a34015c698c7793d592d66adbab377907a2be8",
"type": "github"
},
"original": {
"owner": "edolstra",
"repo": "flake-compat",
"type": "github"
}
},
"flake-utils": {
"locked": {
"lastModified": 1659877975,
"narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1665657542,
"narHash": "sha256-mojxNyzbvmp8NtVtxqiHGhRfjCALLfk9i/Uup68Y5q8=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "a3073c49bc0163fea6a121c276f526837672b555",
"type": "github"
},
"original": {
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "a3073c49bc0163fea6a121c276f526837672b555",
"type": "github"
}
},
"root": {
"inputs": {
"cargo2nix": "cargo2nix",
"nixpkgs": "nixpkgs"
}
},
"rust-overlay": {
"inputs": {
"flake-utils": [
"cargo2nix",
"flake-utils"
],
"nixpkgs": [
"cargo2nix",
"nixpkgs"
]
},
"locked": {
"lastModified": 1664247556,
"narHash": "sha256-J4vazHU3609ekn7dr+3wfqPo5WGlZVAgV7jfux352L0=",
"owner": "oxalica",
"repo": "rust-overlay",
"rev": "524db9c9ea7bc7743bb74cdd45b6d46ea3fcc2ab",
"type": "github"
},
"original": {
"owner": "oxalica",
"repo": "rust-overlay",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

36
flake.nix Normal file
View file

@ -0,0 +1,36 @@
{
description = "A very basic flake";
inputs.nixpkgs.url = "github:NixOS/nixpkgs/a3073c49bc0163fea6a121c276f526837672b555";
inputs.cargo2nix = {
# As of 2022-10-18: two small patches over unstable branch, one for clippy and one to fix feature detection
url = "github:Alexis211/cargo2nix/a7a61179b66054904ef6a195d8da736eaaa06c36";
inputs.nixpkgs.follows = "nixpkgs";
};
outputs = { self, nixpkgs, cargo2nix }:
let
pkgs = import nixpkgs {
system = "x86_64-linux";
overlays = [ cargo2nix.overlays.default ];
};
packageFun = import ./Cargo.nix;
rustVersion = "1.63.0";
compile = args: compileMode:
let
packageSet = pkgs.rustBuilder.makePackageSet ({
inherit packageFun rustVersion;
} // args);
in
packageSet.workspace.diplonat {
inherit compileMode;
};
in
{
test.x86_64-linux.diplonat = compile { release = false; } "test";
debug.x86_64-linux.diplonat = compile { release = false; } "build";
packages.x86_64-linux.diplonat = compile { release = true; } "build";
packages.x86_64-linux.default = self.packages.x86_64-linux.diplonat;
};
}

View file

@ -1,153 +0,0 @@
use std::{collections::HashMap, time::Duration};
use crate::config::*;
// Environment variables are set for the entire process and
// tests are run whithin the same process.
// => We cannot test ConfigOpts::from_env(),
// because tests modify each other's environment.
// This is why we only test ConfigOpts::from_iter(iter).
fn minimal_valid_options() -> HashMap<String, String> {
let mut opts = HashMap::new();
opts.insert(
"DIPLONAT_CONSUL_NODE_NAME".to_string(),
"consul_node".to_string(),
);
opts
}
fn all_valid_options() -> HashMap<String, String> {
let mut opts = minimal_valid_options();
opts.insert(
"DIPLONAT_CONSUL_URL".to_string(),
"http://127.0.0.1:9999".to_string(),
);
opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_ACME_EMAIL".to_string(),
"bozo@bozo.net".to_string(),
);
opts.insert("DIPLONAT_FIREWALL_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_FIREWALL_REFRESH_TIME".to_string(),
"20".to_string(),
);
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_IGD_PRIVATE_IP".to_string(),
"172.123.43.555".to_string(),
);
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "10".to_string());
opts
}
#[test]
#[should_panic]
fn err_empty_env() {
std::env::remove_var("DIPLONAT_CONSUL_NODE_NAME");
let opts: HashMap<String, String> = HashMap::new();
ConfigOpts::from_iter(opts).unwrap();
}
#[test]
fn ok_minimal_valid_options() {
let opts = minimal_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(rt_config.consul.url, CONSUL_URL.to_string());
assert!(rt_config.acme.is_none());
assert!(rt_config.firewall.is_none());
assert!(rt_config.igd.is_none());
// assert_eq!(
// rt_config.firewall.refresh_time,
// Duration::from_secs(REFRESH_TIME.into())
// );
// assert_eq!(
// &rt_config.igd.private_ip,
// opts.get(&"DIPLONAT_PRIVATE_IP".to_string()).unwrap()
// );
// assert_eq!(
// rt_config.igd.expiration_time,
// Duration::from_secs(EXPIRATION_TIME.into())
// );
// assert_eq!(
// rt_config.igd.refresh_time,
// Duration::from_secs(REFRESH_TIME.into())
// );
}
#[test]
#[should_panic]
fn err_invalid_igd_options() {
let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_IGD_ENABLE".to_string(), "true".to_string());
opts.insert("DIPLONAT_IGD_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_IGD_REFRESH_TIME".to_string(), "60".to_string());
ConfigOpts::from_iter(opts).unwrap();
}
#[test]
fn ok_all_valid_options() {
let opts = all_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
let firewall_refresh_time = Duration::from_secs(
opts
.get(&"DIPLONAT_FIREWALL_REFRESH_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let igd_expiration_time = Duration::from_secs(
opts
.get(&"DIPLONAT_IGD_EXPIRATION_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let igd_refresh_time = Duration::from_secs(
opts
.get(&"DIPLONAT_IGD_REFRESH_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(
&rt_config.consul.url,
opts.get(&"DIPLONAT_CONSUL_URL".to_string()).unwrap()
);
assert!(rt_config.acme.is_some());
let acme = rt_config.acme.unwrap();
assert_eq!(
&acme.email,
opts.get(&"DIPLONAT_ACME_EMAIL".to_string()).unwrap()
);
assert!(rt_config.firewall.is_some());
let firewall = rt_config.firewall.unwrap();
assert_eq!(firewall.refresh_time, firewall_refresh_time);
assert!(rt_config.igd.is_some());
let igd = rt_config.igd.unwrap();
assert_eq!(
&igd.private_ip,
opts.get(&"DIPLONAT_IGD_PRIVATE_IP".to_string()).unwrap()
);
assert_eq!(igd.expiration_time, igd_expiration_time);
assert_eq!(igd.refresh_time, igd_refresh_time);
}

View file

@ -1,15 +1,14 @@
#[cfg(test)]
mod config_test;
mod options; mod options;
#[cfg(test)]
mod options_test;
mod runtime; mod runtime;
pub use options::{ pub use options::{ConfigOpts, ConfigOptsBase, ConfigOptsConsul};
ConfigOpts, ConfigOptsAcme, ConfigOptsConsul, ConfigOptsFirewall, ConfigOptsIgd,
};
pub use runtime::{ pub use runtime::{
RuntimeConfig, RuntimeConfigAcme, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd, RuntimeConfig, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd, RuntimeConfigStun,
}; };
pub const EXPIRATION_TIME: u16 = 300; pub const EXPIRATION_TIME: u16 = 300;
pub const REFRESH_TIME: u16 = 60; pub const REFRESH_TIME: u16 = 60;
pub const CONSUL_URL: &str = "http://127.0.0.1:8500"; pub const CONSUL_URL: &str = "http://127.0.0.1:8500";
pub const STUN_SERVER: &str = "stun.nextcloud.com:443";

View file

@ -8,12 +8,21 @@ use crate::config::RuntimeConfig;
// This file parses the options that can be declared in the environment. // This file parses the options that can be declared in the environment.
// runtime.rs applies business logic and builds RuntimeConfig structs. // runtime.rs applies business logic and builds RuntimeConfig structs.
// Note for the future /// Base configuration options
// There is no *need* to have a 'DIPLONAT_XXX_*' prefix for all config options. #[derive(Clone, Default, Deserialize)]
// If some config options are shared by several modules, a ConfigOptsBase could pub struct ConfigOptsBase {
// contain them, and parse the 'DIPLONAT_*' prefix directly. /// This node's private IP address [default: None]
// Only in runtime.rs would these options find their proper location in each pub private_ip: Option<String>,
// module's struct. /// Expiration time for IGD rules [default: 60]
pub expiration_time: Option<u16>,
/// Refresh time for IGD and Firewall rules [default: 300]
pub refresh_time: Option<u16>,
/// STUN server [default: stun.nextcloud.com:443]
pub stun_server: Option<String>,
/// IPv6-only mode (disables IGD, IPv4 firewall and IPv4 address autodiscovery) [default: false]
#[serde(default)]
pub ipv6_only: bool,
}
/// Consul configuration options /// Consul configuration options
#[derive(Clone, Default, Deserialize)] #[derive(Clone, Default, Deserialize)]
@ -22,83 +31,47 @@ pub struct ConfigOptsConsul {
pub node_name: Option<String>, pub node_name: Option<String>,
/// Consul's REST URL [default: "http://127.0.0.1:8500"] /// Consul's REST URL [default: "http://127.0.0.1:8500"]
pub url: Option<String>, pub url: Option<String>,
} /// Consul's CA certificate [default: None]
pub ca_cert: Option<String>,
/// ACME configuration options /// Skip TLS verification for Consul server [default: false]
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsAcme {
/// Whether the ACME module is enabled [default: false]
#[serde(default)] #[serde(default)]
pub enable: bool, pub tls_skip_verify: bool,
/// Consul's client certificate [default: None]
/// The default domain holder's e-mail [default: None] pub client_cert: Option<String>,
pub email: Option<String>, /// Consul's client key [default: None]
} pub client_key: Option<String>,
/// Firewall configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsFirewall {
/// Whether the firewall module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// Refresh time for firewall rules [default: 300]
pub refresh_time: Option<u16>,
}
/// IGD configuration options
#[derive(Clone, Default, Deserialize)]
pub struct ConfigOptsIgd {
/// Whether the IGD module is enabled [default: false]
#[serde(default)]
pub enable: bool,
/// This node's private IP address [default: None]
pub private_ip: Option<String>,
/// Expiration time for IGD rules [default: 60]
pub expiration_time: Option<u16>,
/// Refresh time for IGD rules [default: 300]
pub refresh_time: Option<u16>,
} }
/// Model of all potential configuration options /// Model of all potential configuration options
pub struct ConfigOpts { pub struct ConfigOpts {
pub base: ConfigOptsBase,
pub consul: ConfigOptsConsul, pub consul: ConfigOptsConsul,
pub acme: ConfigOptsAcme,
pub firewall: ConfigOptsFirewall,
pub igd: ConfigOptsIgd,
} }
impl ConfigOpts { impl ConfigOpts {
pub fn from_env() -> Result<RuntimeConfig> { pub fn from_env() -> Result<RuntimeConfig> {
let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_env()?;
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?; let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?;
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_env()?;
let firewall: ConfigOptsFirewall = envy::prefixed("DIPLONAT_FIREWALL_").from_env()?;
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_env()?;
RuntimeConfig::new(Self { RuntimeConfig::new(Self {
consul, base: base,
acme, consul: consul,
firewall,
igd,
}) })
} }
// Currently only used in tests // Currently only used in tests
#[allow(dead_code)] #[cfg(test)]
pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig> pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
where Iter: IntoIterator<Item = (String, String)> { where
let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?; Iter: IntoIterator<Item = (String, String)>,
let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?; {
let firewall: ConfigOptsFirewall = let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_iter(iter.clone())?;
envy::prefixed("DIPLONAT_FIREWALL_").from_iter(iter.clone())?; let consul: ConfigOptsConsul =
let igd: ConfigOptsIgd = envy::prefixed("DIPLONAT_IGD_").from_iter(iter.clone())?; envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
RuntimeConfig::new(Self { RuntimeConfig::new(Self {
consul, base: base,
acme, consul: consul,
firewall,
igd,
}) })
} }
} }

119
src/config/options_test.rs Normal file
View file

@ -0,0 +1,119 @@
use std::{collections::HashMap, time::Duration};
use crate::config::*;
// Environment variables are set for the entire process and
// tests are run whithin the same process.
// => We cannot test ConfigOpts::from_env(),
// because tests modify each other's environment.
// This is why we only test ConfigOpts::from_iter(iter).
fn minimal_valid_options() -> HashMap<String, String> {
let mut opts = HashMap::new();
opts.insert(
"DIPLONAT_CONSUL_NODE_NAME".to_string(),
"consul_node".to_string(),
);
opts
}
fn all_valid_options() -> HashMap<String, String> {
let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_EXPIRATION_TIME".to_string(), "30".to_string());
opts.insert(
"DIPLONAT_STUN_SERVER".to_string(),
"stun.nextcloud.com:443".to_string(),
);
opts.insert(
"DIPLONAT_PRIVATE_IP".to_string(),
"172.123.43.55".to_string(),
);
opts.insert("DIPLONAT_REFRESH_TIME".to_string(), "10".to_string());
opts.insert(
"DIPLONAT_CONSUL_URL".to_string(),
"http://127.0.0.1:9999".to_string(),
);
opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
opts.insert(
"DIPLONAT_ACME_EMAIL".to_string(),
"bozo@bozo.net".to_string(),
);
opts
}
#[test]
#[should_panic]
fn err_empty_env() {
std::env::remove_var("DIPLONAT_CONSUL_NODE_NAME");
ConfigOpts::from_env().unwrap();
}
#[test]
fn ok_from_iter_minimal_valid_options() {
let opts = minimal_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(rt_config.consul.url, CONSUL_URL.to_string());
assert_eq!(
rt_config.firewall.refresh_time,
Duration::from_secs(REFRESH_TIME.into())
);
let igd = rt_config.igd.unwrap();
assert!(igd.private_ip.is_none());
assert_eq!(
igd.expiration_time,
Duration::from_secs(EXPIRATION_TIME.into())
);
assert_eq!(igd.refresh_time, Duration::from_secs(REFRESH_TIME.into()));
}
#[test]
#[should_panic]
fn err_from_iter_invalid_refresh_time() {
let mut opts = minimal_valid_options();
opts.insert("DIPLONAT_EXPIRATION_TIME".to_string(), "60".to_string());
opts.insert("DIPLONAT_REFRESH_TIME".to_string(), "60".to_string());
ConfigOpts::from_iter(opts).unwrap();
}
#[test]
fn ok_from_iter_all_valid_options() {
let opts = all_valid_options();
let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
let expiration_time = Duration::from_secs(
opts.get(&"DIPLONAT_EXPIRATION_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
let refresh_time = Duration::from_secs(
opts.get(&"DIPLONAT_REFRESH_TIME".to_string())
.unwrap()
.parse::<u64>()
.unwrap()
.into(),
);
assert_eq!(
&rt_config.consul.node_name,
opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
);
assert_eq!(
&rt_config.consul.url,
opts.get(&"DIPLONAT_CONSUL_URL".to_string()).unwrap()
);
assert_eq!(rt_config.firewall.refresh_time, refresh_time);
let igd = rt_config.igd.unwrap();
assert_eq!(
&igd.private_ip.unwrap().to_string(),
opts.get(&"DIPLONAT_PRIVATE_IP".to_string()).unwrap()
);
assert_eq!(igd.expiration_time, expiration_time);
assert_eq!(igd.refresh_time, refresh_time);
}

View file

@ -1,146 +1,140 @@
use std::fs::File;
use std::io::Read;
use std::net::{Ipv4Addr, SocketAddr, ToSocketAddrs};
use std::time::Duration; use std::time::Duration;
use anyhow::{anyhow, Result}; use anyhow::{anyhow, bail, Context, Result};
use crate::config::{ use crate::config::{ConfigOpts, ConfigOptsBase, ConfigOptsConsul};
ConfigOpts, ConfigOptsAcme, ConfigOptsConsul, ConfigOptsFirewall, ConfigOptsIgd,
};
// This code is inspired by the Trunk crate (https://github.com/thedodd/trunk) // This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
// In this file, we take ConfigOpts and transform them into ready-to-use // In this file, we take ConfigOpts and transform them into ready-to-use
// RuntimeConfig. We apply default values and business logic. // RuntimeConfig. We apply default values and business logic.
// Consul config is mandatory, all the others are optional.
#[derive(Debug)] #[derive(Debug)]
pub struct RuntimeConfigConsul { pub struct RuntimeConfigConsul {
pub node_name: String, pub node_name: String,
pub url: String, pub url: String,
} pub tls: Option<(Option<reqwest::Certificate>, bool, reqwest::Identity)>,
#[derive(Debug)]
pub struct RuntimeConfigAcme {
pub email: String,
} }
#[derive(Debug)] #[derive(Debug)]
pub struct RuntimeConfigFirewall { pub struct RuntimeConfigFirewall {
pub ipv6_only: bool,
pub refresh_time: Duration, pub refresh_time: Duration,
} }
#[derive(Debug)] #[derive(Debug)]
pub struct RuntimeConfigIgd { pub struct RuntimeConfigIgd {
pub private_ip: String, pub private_ip: Option<Ipv4Addr>,
pub expiration_time: Duration, pub expiration_time: Duration,
pub refresh_time: Duration, pub refresh_time: Duration,
} }
#[derive(Debug)]
pub struct RuntimeConfigStun {
pub stun_server_v4: Option<SocketAddr>,
pub stun_server_v6: SocketAddr,
pub refresh_time: Duration,
}
#[derive(Debug)] #[derive(Debug)]
pub struct RuntimeConfig { pub struct RuntimeConfig {
pub consul: RuntimeConfigConsul, pub consul: RuntimeConfigConsul,
pub acme: Option<RuntimeConfigAcme>, pub firewall: RuntimeConfigFirewall,
pub firewall: Option<RuntimeConfigFirewall>,
pub igd: Option<RuntimeConfigIgd>, pub igd: Option<RuntimeConfigIgd>,
pub stun: RuntimeConfigStun,
} }
impl RuntimeConfig { impl RuntimeConfig {
pub fn new(opts: ConfigOpts) -> Result<Self> { pub fn new(opts: ConfigOpts) -> Result<Self> {
let consul = RuntimeConfigConsul::new(opts.consul)?; let consul = RuntimeConfigConsul::new(opts.consul)?;
let acme = RuntimeConfigAcme::new(opts.acme)?; let firewall = RuntimeConfigFirewall::new(&opts.base)?;
let firewall = RuntimeConfigFirewall::new(opts.firewall)?; let igd = match opts.base.ipv6_only {
let igd = RuntimeConfigIgd::new(opts.igd)?; false => Some(RuntimeConfigIgd::new(&opts.base)?),
true => None,
};
let stun = RuntimeConfigStun::new(&opts.base)?;
Ok(Self { Ok(Self {
acme,
consul, consul,
firewall, firewall,
igd, igd,
stun,
}) })
} }
} }
impl RuntimeConfigConsul { impl RuntimeConfigConsul {
pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> { pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
let node_name = match opts.node_name { let node_name = opts
Some(n) => n, .node_name
_ => return Err(anyhow!("'DIPLONAT_CONSUL_NODE_NAME' is required")), .expect("'DIPLONAT_CONSUL_NODE_NAME' environment variable is required");
}; let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
let url = match opts.url {
Some(url) => url,
_ => super::CONSUL_URL.to_string(),
};
Ok(Self { node_name, url }) let tls = match (&opts.client_cert, &opts.client_key) {
(Some(client_cert), Some(client_key)) => {
let cert = match &opts.ca_cert {
Some(ca_cert) => {
let mut ca_cert_buf = vec![];
File::open(ca_cert)?.read_to_end(&mut ca_cert_buf)?;
Some(reqwest::Certificate::from_pem(&ca_cert_buf[..])?)
} }
} None => None,
impl RuntimeConfigAcme {
pub fn new(opts: ConfigOptsAcme) -> Result<Option<Self>> {
if !opts.enable {
return Ok(None)
}; };
let email = match opts.email { let mut client_cert_buf = vec![];
Some(email) => email, File::open(client_cert)?.read_to_end(&mut client_cert_buf)?;
_ => {
return Err(anyhow!( let mut client_key_buf = vec![];
"'DIPLONAT_ACME_EMAIL' is required if ACME is enabled" File::open(client_key)?.read_to_end(&mut client_key_buf)?;
))
let ident = reqwest::Identity::from_pem(
&[&client_cert_buf[..], &client_key_buf[..]].concat()[..],
)?;
Some((cert, opts.tls_skip_verify, ident))
} }
(None, None) => None,
_ => bail!("Incomplete TLS configuration parameters"),
}; };
Ok(Some(Self { email })) Ok(Self {
node_name,
url,
tls,
})
} }
} }
impl RuntimeConfigFirewall { impl RuntimeConfigFirewall {
pub(super) fn new(opts: ConfigOptsFirewall) -> Result<Option<Self>> { pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
if !opts.enable { let refresh_time =
return Ok(None) Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
}
let refresh_time = Duration::from_secs( Ok(Self {
match opts.refresh_time { refresh_time,
Some(t) => t, ipv6_only: opts.ipv6_only,
_ => super::REFRESH_TIME, })
}
.into(),
);
Ok(Some(Self { refresh_time }))
} }
} }
impl RuntimeConfigIgd { impl RuntimeConfigIgd {
pub(super) fn new(opts: ConfigOptsIgd) -> Result<Option<Self>> { pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
if !opts.enable { let private_ip = opts
return Ok(None) .private_ip
} .as_ref()
.map(|x| x.parse())
let private_ip = match opts.private_ip { .transpose()
Some(ip) => ip, .context("parse private_ip")?;
_ => {
return Err(anyhow!(
"'DIPLONAT_IGD_PRIVATE_IP' is required if IGD is enabled"
))
}
};
let expiration_time = Duration::from_secs( let expiration_time = Duration::from_secs(
match opts.expiration_time { opts.expiration_time
Some(t) => t.into(), .unwrap_or(super::EXPIRATION_TIME)
_ => super::EXPIRATION_TIME,
}
.into(),
);
let refresh_time = Duration::from_secs(
match opts.refresh_time {
Some(t) => t,
_ => super::REFRESH_TIME,
}
.into(), .into(),
); );
let refresh_time =
Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
if refresh_time.as_secs() * 2 > expiration_time.as_secs() { if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
return Err(anyhow!( return Err(anyhow!(
@ -148,13 +142,50 @@ impl RuntimeConfigIgd {
(currently: {}s)", (currently: {}s)",
expiration_time.as_secs(), expiration_time.as_secs(),
refresh_time.as_secs() refresh_time.as_secs()
)) ));
} }
Ok(Some(Self { Ok(Self {
private_ip, private_ip,
expiration_time, expiration_time,
refresh_time, refresh_time,
})) })
}
}
impl RuntimeConfigStun {
pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
let mut stun_server_v4 = None;
let mut stun_server_v6 = None;
for addr in opts
.stun_server
.as_deref()
.unwrap_or(super::STUN_SERVER)
.to_socket_addrs()?
{
if addr.is_ipv4() {
stun_server_v4 = Some(addr);
}
if addr.is_ipv6() {
stun_server_v6 = Some(addr);
}
}
let refresh_time =
Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
let stun_server_v4 = match opts.ipv6_only {
false => Some(
stun_server_v4.ok_or(anyhow!("Unable to resolve STUN server's IPv4 address"))?,
),
true => None,
};
Ok(Self {
stun_server_v4,
stun_server_v6: stun_server_v6
.ok_or(anyhow!("Unable to resolve STUN server's IPv6 address"))?,
refresh_time,
})
} }
} }

View file

@ -3,14 +3,18 @@ use std::collections::HashMap;
use anyhow::{anyhow, Result}; use anyhow::{anyhow, Result};
use serde::{Deserialize, Serialize}; use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug)] use crate::config::RuntimeConfigConsul;
pub struct ServiceEntry {
pub Tags: Vec<String>,
}
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub struct ServiceEntry {
#[serde(rename = "Tags")]
pub tags: Vec<String>,
}
#[derive(Serialize, Deserialize, Debug, Default)]
pub struct CatalogNode { pub struct CatalogNode {
pub Services: HashMap<String, ServiceEntry>, #[serde(rename = "Services")]
pub services: HashMap<String, ServiceEntry>,
} }
pub struct Consul { pub struct Consul {
@ -20,15 +24,42 @@ pub struct Consul {
} }
impl Consul { impl Consul {
pub fn new(url: &str) -> Self { pub fn new(config: &RuntimeConfigConsul) -> Self {
return Self { let client = if let Some((ca, skip_verify, ident)) = config.tls.clone() {
client: reqwest::Client::new(), if skip_verify {
url: url.to_string(), reqwest::Client::builder()
idx: None, .use_rustls_tls()
.danger_accept_invalid_certs(true)
.identity(ident)
.build()
.expect("Unable to build reqwest client")
} else if let Some(ca) = ca {
reqwest::Client::builder()
.use_rustls_tls()
.add_root_certificate(ca)
.identity(ident)
.build()
.expect("Unable to build reqwest client")
} else {
reqwest::Client::builder()
.use_rustls_tls()
.identity(ident)
.build()
.expect("Unable to build reqwest client")
} }
} else {
reqwest::Client::new()
};
return Self {
client,
url: config.url.clone(),
idx: None,
};
} }
pub fn watch_node_reset(&mut self) -> () { self.idx = None; } pub fn watch_node_reset(&mut self) -> () {
self.idx = None;
}
pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> { pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> {
let url = match self.idx { let url = match self.idx {
@ -42,7 +73,14 @@ impl Consul {
None => return Err(anyhow!("X-Consul-Index header not found")), None => return Err(anyhow!("X-Consul-Index header not found")),
}; };
let resp: CatalogNode = http.json().await?; let resp: Option<CatalogNode> = http.json().await?;
return Ok(resp) return Ok(resp.unwrap_or_default());
}
pub async fn kv_put(&self, key: &str, bytes: Vec<u8>) -> Result<()> {
let url = format!("{}/v1/kv/{}", self.url, key);
let http = self.client.put(&url).body(bytes).send().await?;
http.error_for_status()?;
Ok(())
} }
} }

View file

@ -4,19 +4,23 @@ use anyhow::Result;
use log::*; use log::*;
use serde::{Deserialize, Serialize}; use serde::{Deserialize, Serialize};
use serde_lexpr::{error, from_str}; use serde_lexpr::{error, from_str};
use tokio::{sync::watch, time::delay_for}; use tokio::{sync::watch, time::sleep};
use crate::{config::RuntimeConfigConsul, consul, messages}; use crate::config::RuntimeConfigConsul;
use crate::{consul, messages};
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub enum DiplonatParameter { pub enum DiplonatParameter {
tcp_port(HashSet<u16>), #[serde(rename = "tcp_port")]
udp_port(HashSet<u16>), TcpPort(HashSet<u16>),
#[serde(rename = "udp_port")]
UdpPort(HashSet<u16>),
} }
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
pub enum DiplonatConsul { pub enum DiplonatConsul {
diplonat(Vec<DiplonatParameter>), #[serde(rename = "diplonat")]
Diplonat(Vec<DiplonatParameter>),
} }
pub struct ConsulActor { pub struct ConsulActor {
@ -25,7 +29,6 @@ pub struct ConsulActor {
consul: consul::Consul, consul: consul::Consul,
node: String, node: String,
retries: u32, retries: u32,
tx_open_ports: watch::Sender<messages::PublicExposedPorts>, tx_open_ports: watch::Sender<messages::PublicExposedPorts>,
} }
@ -36,14 +39,14 @@ fn retry_to_time(retries: u32, max_time: Duration) -> Duration {
return Duration::from_secs(cmp::min( return Duration::from_secs(cmp::min(
max_time.as_secs(), max_time.as_secs(),
1.2f64.powf(retries as f64) as u64, 1.2f64.powf(retries as f64) as u64,
)) ));
} }
fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> { fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
let mut r = Vec::new(); let mut r = Vec::new();
for (_, service_info) in &catalog.Services { for (_, service_info) in &catalog.services {
for tag in &service_info.Tags { for tag in &service_info.tags {
let diplo_conf: error::Result<DiplonatConsul> = from_str(tag); let diplo_conf: error::Result<DiplonatConsul> = from_str(tag);
match diplo_conf { match diplo_conf {
Ok(conf) => r.push(conf), Ok(conf) => r.push(conf),
@ -52,7 +55,7 @@ fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
} }
} }
return r return r;
} }
fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts { fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts {
@ -62,32 +65,32 @@ fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts {
}; };
for conf in params { for conf in params {
let DiplonatConsul::diplonat(c) = conf; let DiplonatConsul::Diplonat(c) = conf;
for parameter in c { for parameter in c {
match parameter { match parameter {
DiplonatParameter::tcp_port(p) => op.tcp_ports.extend(p), DiplonatParameter::TcpPort(p) => op.tcp_ports.extend(p),
DiplonatParameter::udp_port(p) => op.udp_ports.extend(p), DiplonatParameter::UdpPort(p) => op.udp_ports.extend(p),
}; };
} }
} }
return op return op;
} }
impl ConsulActor { impl ConsulActor {
pub fn new(config: RuntimeConfigConsul) -> Self { pub fn new(config: &RuntimeConfigConsul, node: &str) -> Self {
let (tx, rx) = watch::channel(messages::PublicExposedPorts { let (tx, rx) = watch::channel(messages::PublicExposedPorts {
tcp_ports: HashSet::new(), tcp_ports: HashSet::new(),
udp_ports: HashSet::new(), udp_ports: HashSet::new(),
}); });
return Self { return Self {
consul: consul::Consul::new(&config.url), consul: consul::Consul::new(config),
node: config.node_name,
retries: 0,
rx_open_ports: rx, rx_open_ports: rx,
tx_open_ports: tx, tx_open_ports: tx,
} node: node.to_string(),
retries: 0,
};
} }
pub async fn listen(&mut self) -> Result<()> { pub async fn listen(&mut self) -> Result<()> {
@ -103,15 +106,15 @@ impl ConsulActor {
will_retry_in.as_secs(), will_retry_in.as_secs(),
e e
); );
delay_for(will_retry_in).await; sleep(will_retry_in).await;
continue continue;
} }
}; };
self.retries = 0; self.retries = 0;
let msg = to_open_ports(&to_parameters(&catalog)); let msg = to_open_ports(&to_parameters(&catalog));
debug!("Extracted configuration: {:#?}", msg); debug!("Extracted configuration: {:#?}", msg);
self.tx_open_ports.broadcast(msg)?; self.tx_open_ports.send(msg)?;
} }
} }
} }

View file

@ -1,50 +1,78 @@
use std::pin::Pin; use anyhow::{Context, Result};
use futures::future::FutureExt;
use anyhow::{anyhow, Result}; use tokio::try_join;
use futures::future::{try_join_all, Future};
// use tokio::try_join;
type ActorTask = Pin<Box<dyn Future<Output = Result<()>>>>;
use crate::{ use crate::{
config::ConfigOpts, consul_actor::ConsulActor, fw_actor::FirewallActor, igd_actor::IgdActor, config::ConfigOpts, consul_actor::ConsulActor, fw_actor::FirewallActor, igd_actor::IgdActor,
stun_actor::StunActor,
}; };
pub struct Diplonat { pub struct Diplonat {
actors: Vec<ActorTask>, consul: ConsulActor,
firewall: FirewallActor,
igd: Option<IgdActor>,
stun: StunActor,
} }
impl Diplonat { impl Diplonat {
pub async fn new() -> Result<Self> { pub async fn new() -> Result<Self> {
let config = ConfigOpts::from_env()?; let rt_cfg = ConfigOpts::from_env().context("Parse configuration")?;
println!("{:#?}", config); println!("{:#?}", rt_cfg);
let mut consul_actor = ConsulActor::new(config.consul); let ca = ConsulActor::new(&rt_cfg.consul, &rt_cfg.consul.node_name);
let consul_rx = consul_actor.rx_open_ports.clone();
let actor_task: ActorTask = Box::pin(consul_actor.listen());
let mut actors = vec![actor_task]; let fw = FirewallActor::new(
rt_cfg.firewall.ipv6_only,
rt_cfg.firewall.refresh_time,
&ca.rx_open_ports,
)
.await
.context("Setup fireall actor")?;
if let Some(mut actor) = FirewallActor::new(config.firewall, &consul_rx)? { let ia = match rt_cfg.igd {
let actor_task: ActorTask = Box::pin(actor.listen()); Some(igdc) => Some(
actors.push(actor_task); IgdActor::new(
} igdc.private_ip,
if let Some(mut actor) = IgdActor::new(config.igd, &consul_rx).await? { igdc.refresh_time,
let actor_task: ActorTask = Box::pin(actor.listen()); igdc.expiration_time,
actors.push(actor_task); &ca.rx_open_ports,
)
.await
.context("Setup IGD actor")?,
),
None => None,
};
let sa = StunActor::new(&rt_cfg.consul, &rt_cfg.stun, &rt_cfg.consul.node_name);
let ctx = Self {
consul: ca,
igd: ia,
firewall: fw,
stun: sa,
};
Ok(ctx)
} }
if actors.len() == 1 { pub async fn listen(&mut self) -> Result<()> {
return Err(anyhow!( let igd_opt = &mut self.igd;
"At least enable *one* module, otherwise it's boring!"
))
}
Ok(Self { actors }) try_join!(
self.consul.listen().map(|x| x.context("Run consul actor")),
async {
if let Some(igd) = igd_opt {
igd.listen().await.context("Run IGD actor")
} else {
Ok(())
} }
},
self.firewall
.listen()
.map(|x| x.context("Run firewall actor")),
self.stun.listen().map(|x| x.context("Run STUN actor")),
)?;
pub async fn listen(&self) -> Result<()> {
try_join_all(self.actors);
Ok(()) Ok(())
} }
} }

View file

@ -11,11 +11,10 @@ pub fn setup(ipt: &iptables::IPTables) -> Result<()> {
// ensure we start from a clean state without any rule already set // ensure we start from a clean state without any rule already set
cleanup(ipt)?; cleanup(ipt)?;
ipt info!("{}: creating DIPLONAT chain", ipt.cmd);
.new_chain("filter", "DIPLONAT") ipt.new_chain("filter", "DIPLONAT")
.context("Failed to create new chain")?; .context("Failed to create new chain")?;
ipt ipt.insert_unique("filter", "INPUT", "-j DIPLONAT", 1)
.insert_unique("filter", "INPUT", "-j DIPLONAT", 1)
.context("Failed to insert jump rule")?; .context("Failed to insert jump rule")?;
Ok(()) Ok(())
@ -23,8 +22,8 @@ pub fn setup(ipt: &iptables::IPTables) -> Result<()> {
pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts) -> Result<()> { pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts) -> Result<()> {
for p in ports.tcp_ports { for p in ports.tcp_ports {
ipt info!("{}: opening TCP port {}", ipt.cmd, p);
.append( ipt.append(
"filter", "filter",
"DIPLONAT", "DIPLONAT",
&format!("-p tcp --dport {} -j ACCEPT", p), &format!("-p tcp --dport {} -j ACCEPT", p),
@ -33,8 +32,8 @@ pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts)
} }
for p in ports.udp_ports { for p in ports.udp_ports {
ipt info!("{}: opening UDP port {}", ipt.cmd, p);
.append( ipt.append(
"filter", "filter",
"DIPLONAT", "DIPLONAT",
&format!("-p udp --dport {} -j ACCEPT", p), &format!("-p udp --dport {} -j ACCEPT", p),
@ -55,6 +54,7 @@ pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExpo
let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT") let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT")
.context("Regex matching open ports encountered an unexpected rule")?; .context("Regex matching open ports encountered an unexpected rule")?;
for i in list { for i in list {
debug!("{} list DIPLONAT: got {}", ipt.cmd, i);
let caps = re.captures(&i); let caps = re.captures(&i);
match caps { match caps {
Some(c) => { Some(c) => {
@ -62,36 +62,40 @@ pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExpo
let proto = String::from(raw_proto.as_str()); let proto = String::from(raw_proto.as_str());
let number = String::from(raw_port.as_str()).parse::<u16>()?; let number = String::from(raw_port.as_str()).parse::<u16>()?;
if proto == "tcp" { if proto == "tcp" || proto == "6" {
ports.tcp_ports.insert(number); ports.tcp_ports.insert(number);
} else { } else if proto == "udp" || proto == "17" {
ports.udp_ports.insert(number); ports.udp_ports.insert(number);
} else {
error!("Unexpected protocol in iptables rule: {}", proto);
} }
} else { } else {
error!("Unexpected rule found in DIPLONAT chain") error!("Unexpected rule found in DIPLONAT chain")
} }
} }
_ => {} _ => {
debug!("{} rule not parsed: {}", ipt.cmd, i);
} }
} }
}
debug!("{} ports already openned: {:?}", ipt.cmd, ports);
Ok(ports) Ok(ports)
} }
pub fn cleanup(ipt: &iptables::IPTables) -> Result<()> { pub fn cleanup(ipt: &iptables::IPTables) -> Result<()> {
if ipt.chain_exists("filter", "DIPLONAT")? { if ipt.chain_exists("filter", "DIPLONAT")? {
ipt info!("{}: removing old DIPLONAT chain", ipt.cmd);
.flush_chain("filter", "DIPLONAT") ipt.flush_chain("filter", "DIPLONAT")
.context("Failed to flush the DIPLONAT chain")?; .context("Failed to flush the DIPLONAT chain")?;
if ipt.exists("filter", "INPUT", "-j DIPLONAT")? { if ipt.exists("filter", "INPUT", "-j DIPLONAT")? {
ipt ipt.delete("filter", "INPUT", "-j DIPLONAT")
.delete("filter", "INPUT", "-j DIPLONAT")
.context("Failed to delete jump rule")?; .context("Failed to delete jump rule")?;
} }
ipt ipt.delete_chain("filter", "DIPLONAT")
.delete_chain("filter", "DIPLONAT")
.context("Failed to delete chain")?; .context("Failed to delete chain")?;
} }

View file

@ -9,36 +9,39 @@ use tokio::{
time::{self, Duration}, time::{self, Duration},
}; };
use crate::{config::RuntimeConfigFirewall, fw, messages}; use crate::{fw, messages};
pub struct FirewallActor { pub struct FirewallActor {
pub ipt: iptables::IPTables, pub ipt_v4: Option<iptables::IPTables>,
pub ipt_v6: iptables::IPTables,
rx_ports: watch::Receiver<messages::PublicExposedPorts>,
last_ports: messages::PublicExposedPorts, last_ports: messages::PublicExposedPorts,
refresh: Duration, refresh: Duration,
rx_ports: watch::Receiver<messages::PublicExposedPorts>,
} }
impl FirewallActor { impl FirewallActor {
pub fn new( pub async fn new(
config: Option<RuntimeConfigFirewall>, ipv6_only: bool,
refresh: Duration,
rxp: &watch::Receiver<messages::PublicExposedPorts>, rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Option<Self>> { ) -> Result<Self> {
match config {
None => Ok(None),
Some(c) => {
let ctx = Self { let ctx = Self {
ipt: iptables::new(false)?, ipt_v4: match ipv6_only {
last_ports: messages::PublicExposedPorts::new(), false => Some(iptables::new(false)?),
refresh: c.refresh_time, true => None,
},
ipt_v6: iptables::new(true)?,
rx_ports: rxp.clone(), rx_ports: rxp.clone(),
last_ports: messages::PublicExposedPorts::new(),
refresh,
}; };
fw::setup(&ctx.ipt)?;
Ok(Some(ctx)) if let Some(ipt_v4) = &ctx.ipt_v4 {
} fw::setup(ipt_v4)?;
} }
fw::setup(&ctx.ipt_v6)?;
return Ok(ctx);
} }
pub async fn listen(&mut self) -> Result<()> { pub async fn listen(&mut self) -> Result<()> {
@ -46,7 +49,7 @@ impl FirewallActor {
loop { loop {
// 1. Wait for an event // 1. Wait for an event
let new_ports = select! { let new_ports = select! {
Some(ports) = self.rx_ports.recv() => Some(ports), _ = self.rx_ports.changed() => Some(self.rx_ports.borrow().clone()),
_ = interval.tick() => None, _ = interval.tick() => None,
else => return Ok(()) // Sender dropped, terminate loop. else => return Ok(()) // Sender dropped, terminate loop.
}; };
@ -65,7 +68,15 @@ impl FirewallActor {
} }
pub async fn do_fw_update(&self) -> Result<()> { pub async fn do_fw_update(&self) -> Result<()> {
let curr_opened_ports = fw::get_opened_ports(&self.ipt)?; if let Some(ipt_v4) = &self.ipt_v4 {
self.do_fw_update_on(ipt_v4).await?;
}
self.do_fw_update_on(&self.ipt_v6).await?;
Ok(())
}
pub async fn do_fw_update_on(&self, ipt: &iptables::IPTables) -> Result<()> {
let curr_opened_ports = fw::get_opened_ports(ipt)?;
let diff_tcp = self let diff_tcp = self
.last_ports .last_ports
@ -85,8 +96,8 @@ impl FirewallActor {
udp_ports: diff_udp, udp_ports: diff_udp,
}; };
fw::open_ports(&self.ipt, ports_to_open)?; fw::open_ports(ipt, ports_to_open)?;
return Ok(()) return Ok(());
} }
} }

View file

@ -1,4 +1,4 @@
use std::net::SocketAddrV4; use std::net::{Ipv4Addr, SocketAddrV4};
use anyhow::{Context, Result}; use anyhow::{Context, Result};
use igd::{aio::*, PortMappingProtocol}; use igd::{aio::*, PortMappingProtocol};
@ -9,41 +9,67 @@ use tokio::{
time::{self, Duration}, time::{self, Duration},
}; };
use crate::{config::RuntimeConfigIgd, messages}; use crate::messages;
pub struct IgdActor { pub struct IgdActor {
expire: Duration,
gateway: Gateway,
last_ports: messages::PublicExposedPorts, last_ports: messages::PublicExposedPorts,
private_ip: String,
refresh: Duration,
rx_ports: watch::Receiver<messages::PublicExposedPorts>, rx_ports: watch::Receiver<messages::PublicExposedPorts>,
gateway: Gateway,
refresh: Duration,
expire: Duration,
private_ip: Ipv4Addr,
} }
impl IgdActor { impl IgdActor {
pub async fn new( pub async fn new(
config: Option<RuntimeConfigIgd>, priv_ip: Option<Ipv4Addr>,
refresh: Duration,
expire: Duration,
rxp: &watch::Receiver<messages::PublicExposedPorts>, rxp: &watch::Receiver<messages::PublicExposedPorts>,
) -> Result<Option<Self>> { ) -> Result<Self> {
match config {
None => Ok(None),
Some(c) => {
let gw = search_gateway(Default::default()) let gw = search_gateway(Default::default())
.await .await
.context("Failed to find IGD gateway")?; .context("Failed to find IGD gateway")?;
info!("IGD gateway: {}", gw); info!("IGD gateway: {}", gw);
Ok(Some(Self { let private_ip = if let Some(ip) = priv_ip {
expire: c.expiration_time, info!("Using private IP from config: {}", ip);
ip
} else {
info!("Trying to automatically detect private IP");
let gwa = gw.addr.ip().octets();
let cmplen = match gwa {
[192, 168, _, _] => 3,
[10, _, _, _] => 2,
_ => panic!(
"Gateway IP does not appear to be in a local network ({})",
gw.addr.ip()
),
};
#[allow(unused_parens)]
let private_ip = get_if_addrs::get_if_addrs()?
.into_iter()
.map(|i| i.addr.ip())
.filter_map(|a| match a {
std::net::IpAddr::V4(a4) if a4.octets()[..cmplen] == gwa[..cmplen] => Some(a4),
_ => None,
})
.next()
.expect("No interface has an IP on same subnet as gateway");
info!("Autodetected private IP: {}", private_ip);
private_ip
};
let ctx = Self {
gateway: gw, gateway: gw,
last_ports: messages::PublicExposedPorts::new(),
private_ip: c.private_ip,
refresh: c.refresh_time,
rx_ports: rxp.clone(), rx_ports: rxp.clone(),
})) private_ip,
} refresh: refresh,
} expire: expire,
last_ports: messages::PublicExposedPorts::new(),
};
return Ok(ctx);
} }
pub async fn listen(&mut self) -> Result<()> { pub async fn listen(&mut self) -> Result<()> {
@ -51,7 +77,7 @@ impl IgdActor {
loop { loop {
// 1. Wait for an event // 1. Wait for an event
let new_ports = select! { let new_ports = select! {
Some(ports) = self.rx_ports.recv() => Some(ports), _ = self.rx_ports.changed() => Some(self.rx_ports.borrow().clone()),
_ = interval.tick() => None, _ = interval.tick() => None,
else => return Ok(()) // Sender dropped, terminate loop. else => return Ok(()) // Sender dropped, terminate loop.
}; };
@ -77,12 +103,8 @@ impl IgdActor {
for (proto, list) in actions.iter() { for (proto, list) in actions.iter() {
for port in *list { for port in *list {
let service_str = format!("{}:{}", self.private_ip, port); let service = SocketAddrV4::new(self.private_ip, *port);
let service = service_str self.gateway
.parse::<SocketAddrV4>()
.context("Invalid socket address")?;
self
.gateway
.add_port( .add_port(
*proto, *proto,
*port, *port,
@ -95,6 +117,6 @@ impl IgdActor {
} }
} }
return Ok(()) return Ok(());
} }
} }

View file

@ -6,6 +6,7 @@ mod fw;
mod fw_actor; mod fw_actor;
mod igd_actor; mod igd_actor;
mod messages; mod messages;
mod stun_actor;
use diplonat::Diplonat; use diplonat::Diplonat;
use log::*; use log::*;
@ -15,6 +16,10 @@ async fn main() {
pretty_env_logger::init(); pretty_env_logger::init();
info!("Starting Diplonat"); info!("Starting Diplonat");
let mut diplo = Diplonat::new().await.expect("Setup failed"); Diplonat::new()
diplo.listen().await.expect("A runtime error occured"); .await
.expect("Setup failed")
.listen()
.await
.expect("A runtime error occured");
} }

View file

@ -11,6 +11,6 @@ impl PublicExposedPorts {
return Self { return Self {
tcp_ports: HashSet::new(), tcp_ports: HashSet::new(),
udp_ports: HashSet::new(), udp_ports: HashSet::new(),
} };
} }
} }

176
src/stun_actor.rs Normal file
View file

@ -0,0 +1,176 @@
use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
use std::time::{Duration, SystemTime};
use anyhow::{anyhow, bail, Result};
use log::*;
use serde::{Deserialize, Serialize};
use crate::config::{RuntimeConfigConsul, RuntimeConfigStun};
use crate::consul;
/// If autodiscovery returns None but an address was obtained less than
/// this number of seconds ago (here 15 minutes), we keep that address
/// in the Consul db instead of insterting a None.
const PERSIST_SOME_RESULT_DURATION_SECS: u64 = 900;
pub struct StunActor {
consul: consul::Consul,
refresh_time: Duration,
autodiscovery_v4: StunAutodiscovery,
autodiscovery_v6: StunAutodiscovery,
}
pub struct StunAutodiscovery {
consul_key: String,
is_ipv4: bool,
stun_server: Option<SocketAddr>,
last_result: Option<AutodiscoverResult>,
}
#[derive(Serialize, Deserialize, Debug)]
pub struct AutodiscoverResult {
pub timestamp: u64,
pub address: Option<IpAddr>,
}
impl StunActor {
pub fn new(
consul_config: &RuntimeConfigConsul,
stun_config: &RuntimeConfigStun,
node: &str,
) -> Self {
assert!(stun_config
.stun_server_v4
.map(|x| x.is_ipv4())
.unwrap_or(true));
assert!(stun_config.stun_server_v6.is_ipv6());
let autodiscovery_v4 = StunAutodiscovery {
consul_key: format!("diplonat/autodiscovery/ipv4/{}", node),
is_ipv4: true,
stun_server: stun_config.stun_server_v4,
last_result: None,
};
let autodiscovery_v6 = StunAutodiscovery {
consul_key: format!("diplonat/autodiscovery/ipv6/{}", node),
is_ipv4: false,
stun_server: Some(stun_config.stun_server_v6),
last_result: None,
};
Self {
consul: consul::Consul::new(consul_config),
autodiscovery_v4,
autodiscovery_v6,
refresh_time: stun_config.refresh_time,
}
}
pub async fn listen(&mut self) -> Result<()> {
loop {
if let Err(e) = self.autodiscovery_v4.do_iteration(&self.consul).await {
error!("Unable to autodiscover IPv4 address: {}", e);
}
if let Err(e) = self.autodiscovery_v6.do_iteration(&self.consul).await {
error!("Unable to autodiscover IPv6 address: {}", e);
}
tokio::time::sleep(self.refresh_time).await;
}
}
}
impl StunAutodiscovery {
async fn do_iteration(&mut self, consul: &consul::Consul) -> Result<()> {
let binding_ip = match self.is_ipv4 {
true => IpAddr::V4(Ipv4Addr::UNSPECIFIED), // 0.0.0.0
false => IpAddr::V6(Ipv6Addr::UNSPECIFIED), // [::]
};
let binding_addr = SocketAddr::new(binding_ip, 0);
let discovered_addr = match self.stun_server {
Some(stun_server) => {
assert_eq!(self.is_ipv4, stun_server.is_ipv4());
get_mapped_addr(stun_server, binding_addr)
.await?
.map(|x| x.ip())
}
None => None,
};
let now = timestamp();
if discovered_addr.is_none() {
if let Some(last_result) = &self.last_result {
if last_result.address.is_some()
&& now - last_result.timestamp <= PERSIST_SOME_RESULT_DURATION_SECS
{
// Keep non-None result that was obtained before by not
// writing/taking into account None result.
return Ok(());
}
}
}
let current_result = AutodiscoverResult {
timestamp: now,
address: discovered_addr,
};
let msg = format!(
"STUN autodiscovery result: {} -> {:?}",
self.consul_key, discovered_addr
);
if self.last_result.as_ref().and_then(|x| x.address) != discovered_addr {
info!("{}", msg);
} else {
debug!("{}", msg);
}
consul
.kv_put(&self.consul_key, serde_json::to_vec(&current_result)?)
.await?;
self.last_result = Some(current_result);
Ok(())
}
}
async fn get_mapped_addr(
stun_server: SocketAddr,
binding_addr: SocketAddr,
) -> Result<Option<SocketAddr>> {
use stun_client::*;
let mut client = Client::new(binding_addr, None).await?;
let res = match client.binding_request(stun_server, None).await {
Err(e) => {
info!(
"STUN binding request to {} failed, assuming no address (error: {})",
binding_addr, e
);
return Ok(None);
}
Ok(r) => r,
};
if res.get_class() != Class::SuccessResponse {
bail!("STUN server did not responde with a success response");
}
let xor_mapped_addr = Attribute::get_xor_mapped_address(&res)
.ok_or(anyhow!("no XorMappedAddress found in STUN response"))?;
Ok(Some(xor_mapped_addr))
}
fn timestamp() -> u64 {
SystemTime::now()
.duration_since(SystemTime::UNIX_EPOCH)
.expect("clock error")
.as_secs()
}