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ESPHome Feature Request Tracker
https://esphome.io/
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WireGuard Support for ESP32 #1444

Closed davey closed 12 months ago

davey commented 2 years ago

Describe the problem you have/What new integration you would like

Please help me adding support for WireGuard to ESPHome on ESP32 boards. WireGuard is an extremely simple yet fast and modern VP.

There already seems to be an Arduino library in Platformio for the ESP32.

Please describe your use case for this integration and alternatives you've tried:

I need to have a bidirectional, secure channel between multiple ESPHome/ESP32s at multiple locations and some remote backend server. From these backend servers I want to be able to push e.g. OTA updates centrally to many different NATed locations (where a site2site VPN is not an option). Also I'd like to reach all those different locations from one central HomeAssistant instance. On the ESP side, only traffic to a specific remote subnet (the backend) needs be routed through Wireguard, all remaining network traffic should use the default gateway.

AFAIK there are no VPN alternatives available for ESPhome yet.

Additional context

Basically this is all about being able to directly reach (on IP level) multiple ESPHome boards at different locations/networks behind their NAT routers from some central place / VPN server / backend.

davey commented 2 years ago

I've already tried to add the library by putting this in my ESPHome yaml config: platformio_options: { lib_deps: "ciniml/WireGuard-ESP32" } but I got this error:

Processing my_test (board: esp32dev; framework: arduino; platform: platformio/espressif32@3.2.0)
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
PACKAGES:
 - framework-arduinoespressif32 3.10006.210326 (1.0.6)
 - tool-esptoolpy 1.30000.201119 (3.0.0)
 - toolchain-xtensa32 2.50200.97 (5.2.0)
Dependency Graph
|-- <WireGuard-ESP32> 0.1.2
[......]
Compiling .pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/cortex_m0_mpy121666.s.o
xtensa-esp32-elf-as: unrecognized option '-x'
Compiling .pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/cortex_m0_reduce25519.s.o
xtensa-esp32-elf-as: unrecognized option '-x'
Compiling .pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/mul.s.o
xtensa-esp32-elf-as: unrecognized option '-x'
*** [.pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/cortex_m0_mpy121666.s.o] Error 1
*** [.pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/cortex_m0_reduce25519.s.o] Error 1
*** [.pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/mul.s.o] Error 1
Compiling .pioenvs/my_test/libc96/WireGuard-ESP32/crypto/cortex/scalarmult.c.o
================================================ [FAILED] Took 7.92 seconds ================================================

Any help / hint is much appreciated!

mrkeuz commented 2 years ago

@davey Very cool solution. It is potentially will add ability to communicate with ESPHome from anywhere. Really impressive. I like idea, maybe it is even good alternative over MQTT.

I know one of embedded developer. Will try to consult with him. Also, will try to google problem to help you.

mrkeuz commented 2 years ago

Faced with same issue. I've even created fresh project to test. Same result. It tries to execute xtensa-esp32-elf-as -x assembler-with-cpp -mlongcalls ... assembler tool chain (in contrast GNU Assembler) to compile *.s files, but exactly xtensa-esp32-elf-as has not the options -x, -mlongcalls. (if I understand things correctly)

Here my test project and config: https://github.com/mrkeuz/wg-esp32-test Just in case, for prepare config (just with ESPHome is little hard to pass some parameters to pio config)

What I found and tried, options:

Summary: It is necessary to understand, how configure PlatformIO assembler tool chain for compile right in way.

Hope it helps somehow.

platformio.ini:

...
; Removes paramaters from ASFLAGS
build_unflags =
   -Wa,-x
   -Wa,assembler-with-cpp
   -Wa,-mlongcalls
...

Error from assembler after remove unsupported flags:

...
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:14: Error: unknown pseudo-op: `.cpu'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:15: Error: unknown pseudo-op: `.fpu'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:16: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:17: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:18: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:19: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:20: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:21: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:22: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:23: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:24: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_mpy121666.S:25: Error: unknown pseudo-op: `.code'
cortex_m0_reduce25519.S:33: Error: unknown pseudo-op: `.code'
cortex_m0_reduce25519.S:34: Error: unknown pseudo-op: `.thumb_func'
cortex_m0_reduce25519.S:38: Error: unknown opcode or format name 'push'
cortex_m0_reduce25519.S:39: Error: unknown opcode or format name 'ldr'
cortex_m0_reduce25519.S:40: Error: extra comma
cortex_m0_reduce25519.S:40: Error: syntax error
cortex_m0_reduce25519.S:41: Error: extra comma
cortex_m0_reduce25519.S:41: Error: syntax error
cortex_m0_reduce25519.S:42: Error: extra comma
cortex_m0_reduce25519.S:42: Error: syntax error
cortex_m0_reduce25519.S:43: Error: extra comma
cortex_m0_reduce25519.S:43: Error: syntax error
cortex_m0_reduce25519.S:44: Error: unknown opcode or format name 'uxth'
cortex_m0_reduce25519.S:45: Error: unknown opcode or format name 'mul'
cortex_m0_reduce25519.S:46: Error: unknown opcode or format name 'mul'
cortex_m0_reduce25519.S:47: Error: bad register name: r5
cortex_m0_reduce25519.S:47: Error: junk at end of line, first unrecognized character is `r'
cortex_m0_reduce25519.S:47: Internal error!
Assertion failure in ignore_rest_of_line at /builds/idf/crosstool-NG/.build/src/binutils-2.25.1/gas/read.c line 3694.
Please report this bug.
*** [.pio/build/esp-wrover-kit/libca3/WireGuard-ESP32/crypto/cortex/cortex_m0_mpy121666.S.o] Error 1
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S: Assembler messages:
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:11: Error: unknown pseudo-op: `.cpu'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:12: Error: unknown pseudo-op: `.fpu'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:13: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:14: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:15: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:16: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:17: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:18: Error: unknown pseudo-op: `.eabi_attribute'
-ardui.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:19: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:20: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:21: Error: unknown pseudo-op: `.eabi_attribute'
.pio/libdeps/esp-wrover-kit/WireGuard-ESP32/src/crypto/cortex/cortex_m0_reduce25519.S:22: Error: unknown pseudo-op: `.code'
ncortex_m0_reduce25519.S:30: Error: unknown pseudo-op: `.code'
oespressif32/tools/sdk/include/coap -I/cortex_m0_reduce25519.S:31: Error: unknown pseudo-op: `.thumb_func'
home/petr/.platformio/cortex_m0_reduce25519.S:35: Error: unknown opcode or format name 'push'
cortex_m0_reduce25519.S:36: Error: extra comma
cortex_m0_reduce25519.S:36: Error: syntax error
cortex_m0_reduce25519.S:37: Error: extra comma
cortex_m0_reduce25519.S:37: Error: syntax error
cortex_m0_reduce25519.S:38: Error: unknown opcode or format name 'uxth'
cortex_m0_reduce25519.S:39: Error: extra comma
cortex_m0_reduce25519.S:39: Error: syntax error
cortex_m0_reduce25519.S:40: Error: unknown opcode or format name 'mul'
cortex_m0_reduce25519.S:41: Error: unknown opcode or format name 'mul'
cortex_m0_reduce25519.S:42: Error: extra comma
cortex_m0_reduce25519.S:42: Error: syntax error
cortex_m0_reduce25519.S:43: Error: extra comma
cortex_m0_reduce25519.S:43: Error: syntax error
cortex_m0_reduce25519.S:44: Error: extra comma
cortex_m0_reduce25519.S:44: Error: syntax error
cortex_m0_reduce25519.S:45: Error: extra comma
cortex_m0_reduce25519.S:45: Error: syntax error
cortex_m0_reduce25519.S:46: Error: bad register name: r4
cortex_m0_reduce25519.S:46: Error: junk at end of line, first unrecognized character is `r'
cortex_m0_reduce25519.S:46: Internal error!
Assertion failure in ignore_rest_of_line at /builds/idf/crosstool-NG/.build/src/binutils-2.25.1/gas/read.c line 3694.
Please report this bug.
...
mrkeuz commented 2 years ago

Solved. By exclude files in src/crypto/cortex from build.

In the end reveals that src/crypto/cortex is some platform-specific implementation of cryptography and even not used (call of asm implementation crypto_scalarmult_curve25519 is commented):

So it can safety exclude from build. One thing, I don't find easy way to exclude some lib files from build via platformio.ini flags, it can achieve little tricky via python script (extra_scipts = ... flag). But I decided just fork project and fix library.

So you can use lib_deps like 

lib_deps = https://github.com/mrkeuz/WireGuard-ESP32-Arduino#a788ab8

Or fork you own repo (just delete src/crypto/cortex folder). It compiles successfully. But I don't tested exactly wg in on real hardware.

jarno83 commented 2 years ago

Hi, will it be added to esphome code? I want to connect esphome sensors from external network to home assistant api. Thanks

EDIT: I added libs_deps: lib_deps = https://github.com/mrkeuz/WireGuard-ESP32-Arduino#a788ab8 to platformio.ini of my esp32 project and it got compiled with some warnings. https://pastebin.com/fPbddrfq

If I flash it how and what commands can I configure it on project yaml? Thanks

davey commented 2 years ago

I finally got a basic example setup working and would like to share that. 🚀

Thanks a lot for all those who contributed to this - this is great!

This is the content of my ESPhome config yaml (wireguard-test.yaml):

esphome:
  name: "wireguard-test"
  platform: esp32
  board: esp32dev
  arduino_version: latest
  platformio_options:
    lib_deps: "ciniml/WireGuard-ESP32"
  libraries: "WireGuard-ESP32"
  includes:
    - wireguard-test.wg.h

wifi:
  networks:
    - { ssid: "wifi-ssid-1", password: "xxxxxxxxxxxx" }
    - { ssid: "wifi-ssid-2", password: "yyyyyyyyyyyyy" }
  ap: { ssid: "wgtest-SETUP", password: "secretsetup" }

ota:
logger: { level: DEBUG, baud_rate: 115200}
web_server: { port: 80 }
time:
 - { platform: sntp, id: "sntp_time", timezone: "Europe/Berlin" }

custom_component:
- lambda: |-
    auto wireguard_component = new WireguardComponent();
    return {wireguard_component};

This is the content of my Wireguard config (wireguard-test.wg.h), which is mentioned in the file above:

#include "esphome.h"
#include "WireGuard-ESP32.h"

static WireGuard wg;

class WireguardComponent : public Component {
 public:

  // make sure we are starting LATE, after WIFI is initialized
  float get_setup_priority() const override { return esphome::setup_priority::LATE; }

  void setup() override {
    ESP_LOGD("custom", "wireguard setup: start ...");

    char private_key[] = "XXXXXXXXXXXXXXX="; // private key of the client (ESP)
    char public_key[]  = "YYYYYYYYYYYYYYYY="; // public key of the server (remote linux VPN server)
    IPAddress local_ip(192,168,99,123);           // VPN IP for this VPN client
    char endpoint_address[] = "vpn.example.com"; // VPN/Wireguard server hostname
    int endpoint_port = 51820;                   // VPN/Wireguard server port

    ESP_LOGD("custom", "wireguard setup: delay(5000) ...");
    delay( 5000 );
    ESP_LOGD("custom", "wireguard setup: begin ...");
    wg.begin(
        local_ip,
        private_key,
        endpoint_address,
        public_key,
        endpoint_port
    );
    ESP_LOGD("custom", "wireguard setup: end ...");
  }

  void loop() override {
    delay( 1000 );
    ESP_LOGD("custom", "wireguard loop ...");
  }
};

This is all that is needed on the ESP / EPShome side.

For completeness of this example, this is the essential part on the VPN/Wireguard server side (/etc/wireguard/wg0.conf on an Ubuntu server):

[Interface]
Address = 192.168.99.1/32
PrivateKey = PPPPPPPPPPPPPPPPPPP
ListenPort = 51820

## wireguard-test
[Peer]
PublicKey = VVVVVVVVVVVVVVVVVV
AllowedIPs = 192.168.99.123/32

I am sure there a a lot things that still need to be improved, e.g. properly waiting for the Wifi being established, making sure we reconnect in case the connection is lost and so on - I just wanted to share the earliest success to everyone waiting for it :-)

Next steps in my opinion would be to make the config more dynamic, e.g. being able to change the settings (server host, port, public and private keys and so on) or even generate a private key on the ESP itself, only showing/providing it's publickey part somewhere...

CarlosGS commented 2 years ago

Thanks for the great work! You can also make it run upon time sync, which simplifies things:

wireguard-test.yaml

esphome:
  name: wireguard-test
  platform: ESP32
  board: esp32dev
  libraries: ciniml/WireGuard-ESP32
  includes: wg-settings.h

wifi:
  networks:
    - { ssid: "wifi-ssid-1", password: "xxxxxxxxxxxx" }
  ap: { ssid: "wgtest-SETUP", password: "secretsetup" }

ota:
logger: { level: DEBUG, baud_rate: 115200}
web_server: { port: 80 }
time:
  - platform: sntp
    on_time_sync:
        then:
        - logger.log: "Starting wireguard..."
        - lambda: |
            wg.begin(local_ip,private_key,endpoint_address,public_key,endpoint_port);

wg-settings.h

#include <WireGuard-ESP32.h>
static WireGuard wg;

char private_key[] = "XXXXXXXXXXXXXXX="; // private key of the client (ESP)
char public_key[]  = "YYYYYYYYYYYYYYYY="; // public key of the server (remote linux VPN server)
IPAddress local_ip(192,168,99,123);           // VPN IP for this VPN client
char endpoint_address[] = "vpn.example.com"; // VPN/Wireguard server hostname
int endpoint_port = 51820;                   // VPN/Wireguard server port

The web server works, it's pretty amazing to have Wireguard running finally thanks a lot :D

However, I haven't been able to connect via OTA nor ESPHome API (adding api:). We must be missing some internal configuration. Maybe we need to find a way to set up wireguard before api & ota. Almost there!

CarlosGS commented 2 years ago

OK, got it to work with Home Assistant & OTA! :smile:

We were missing an IP route from the Home Assistant network to the Wireguard network (i.e. packets sent from HASS to the ESPHome node IP were being forwarded to the router, which dropped them). So neither HASS nor OTA could reach the nodes. I've arranged these instructions to make it work:

  1. Set up the official Wireguard addon with the standard configuration, verify you can connect to HASS from your phone on data.
  2. Add the following to your Home Assistant's configuration.yaml. It creates a "command" sensor to periodically fetch the Wireguard addon's internal IP, and also configure the correct IP route. 
    sensor:
- platform: command_line
name: Wireguard addon internal IP # Creates the IP route to support ESPHome devices on Wireguard
command: host_result=$(host a0d7b954-wireguard); addon_ip=${host_result##* }; ip route replace 172.27.66.0/24 via $addon_ip; echo $addon_ip
  3. Restart HASS, the new text sensor will take a couple minutes to settle into an IP like 172.30.33.2.
  4. Then note: To add the ESPHome nodes to Home Assistant you need to do it manually by going to Config->Integrations->Add->ESPHome and typing the node's specific wireguard IP. Make sure that you have the api: line in the yaml for each node. And for the ESPHome dashboard, remember to enable status_use_ping so the nodes are properly detected.

A bit tacky but at least we know it can work! Thanks @davey, @mrkeuz and @ciniml for making this possible! :tada: Finally we can properly have remote ESPHome nodes :D

mrkeuz commented 2 years ago

@CarlosGS fantastic news!

I'm curious, did you try test connections exactly from ESPHome. I.e. try to connect to MQTT inside wg LAN. Seems wg in this case should start before MQTT component, right? And in general, will it be working at all. Just curious, how it works in core.

Honestly, exposed API via wg is already BIG DEAL and this really cool! Hopefully sooner or later this will land to mainstream.

@CarlosGS, @davey 🚀🚀🚀

CarlosGS commented 2 years ago

Haven't tried MQTT yet, but it should work. Setup order shouldn't really matter as the Wireguard implementation overrides the default routing interface.

Hopefully sooner or later this will land to mainstream.

Indeed! And ESP8266 is also based on lwip - do you think it could be possible to port it, or does it depend on internal cipher functions of ESP32?

mrkeuz commented 2 years ago

ESP8266 is also based on lwip - do you think it could be possible to port it

Actually, I'm not "core" c/cpp developer. Just touching home automation a bit. And didn't dive into libraries/compatibility so deeply yet, especially with lwip.

I think it needs just try. The missing functions can be added and replaced via some #DEFINE magic. All the more wg uses modern ciphers and I don't think there will be any hardware restrictions or limitations in this area. Also, as described in original implementation, ciphers implemented in pure c, so don't think that here will be some problems. Just will be working little slowly.

Ah. Finally, found next discussion (see last comment). Seem it already worked on ESP8266. So just here a question how easily can be integrated into esphome.

CarlosGS commented 2 years ago

The other item that wasn't working "out of the box" was the API logger. Connecting with the remote logger would make the ESP32 fall into some sort of loop and stop responding. Found a solution after some debugging: we simply need to remove/comment the ESP_LOG statements from the wireguard code, it seems they clash with ESPHome's internal logger. Doing that, everything works just fine :tada:

Also, for a complete official component we should consider enabling Wireguard in "OTA safe mode", this way remote nodes would be accessible even in the event of a reboot loop :)

:thinking: It would be great if someone could get ESPHome+Wireguard running on ESP8266, that would really shape an official method to have remote ESPHome nodes. Any news or testing, make sure to post here!

mrkeuz commented 2 years ago

Just FYI.

Found easy instruction how link home-assistant container to WireGuard (without route magic):

https://www.pedrolamas.com/2020/11/20/how-to-connect-to-a-wireguard-vpn-server-from-a-docker-container/

Maybe it might be useful for somebody.

vsurkov commented 2 years ago

Hello everyone, first of all, thanks a lot for your work, it's awesome! I have an addition to the solution from @CarlosGS . Details are in this issue (https://github.com/ciniml/WireGuard-ESP32-Arduino/issues/13). The correct configuration should be like this to avoid reboots every ~10 min:

time:
  - platform: sntp
    on_time_sync:
        then:
        - lambda: |
            static const char* TAG = "wireguard";
            ESP_LOGD(TAG, "Starting...");
            if( !wg.is_initialized() ) {
                        ESP_LOGD(TAG, "Initializing WG interface...");
                        if( !wg.begin(
                                local_ip,
                                private_key,
                                endpoint_address,
                                public_key,
                                endpoint_port) ) {
                            ESP_LOGD(TAG, "Failed to initialize WG interface.");
                        }
                    }

I hope this information will be useful and save someone a few nights of debugging :)

trombik commented 2 years ago

Seem it already worked on ESP8266.

i did confirm that esp8266 works fine with the original implementation.

https://github.com/trombik/esp_wireguard

shirou93 commented 2 years ago

This feature will be added to esphome?

jarno83 commented 2 years ago

Seem it already worked on ESP8266.

i did confirm that esp8266 works fine with the original implementation.

https://github.com/trombik/esp_wireguard

Hi, I tried to build that with platformIO but I get error, How did you do it?

Thanks.

.pio/libdeps/woodenbrick/esp_wireguard/src/crypto.c: In function 'crypto_equal': .pio/libdeps/woodenbrick/esp_wireguard/src/crypto.c:18:5: warning: pointer of type 'void *' used in arithmetic [-Wpointer-arith] a += 1; ^ .pio/libdeps/woodenbrick/esp_wireguard/src/crypto.c:19:5: warning: pointer of type 'void *' used in arithmetic [-Wpointer-arith] b += 1; ^ Compiling .pio/build/woodenbrick/libaf1/esp_wireguard/crypto/cortex/cortex_m0_mpy121666.s.o xtensa-lx106-elf-as: unrecognized option-x' *** [.pio/build/woodenbrick/libaf1/esp_wireguard/crypto/cortex/cortex_m0_mpy121666.s.o] Error 1`

trombik commented 2 years ago

as I don't use platformio, I don't know.

fkoteam commented 2 years ago

@CarlosGS thank you (gracias!). I'm very close to make work oracle cloud+home assistant+wireguard+esphome. Only have and issue (the last?). I've made your magic with the command sensor. With those line wireguard works, but home assistant loses internet connection. any idea? EDIT: I think I get it: sudo sysctl -w net.ipv4.ip_forward=1 echo "net.ipv4.ip_forward = 1" | sudo tee -a /etc/sysctl.conf sudo sysctl -p /etc/sysctl.conf

CarlosGS commented 2 years ago

Hmm, do you mean your Home assistant is running in an external server?

Mine runs in LAN, sorry, I'm not sure what would be needed to make it work like that 🤔

fkoteam commented 2 years ago

Hmm, do you mean your Home assistant is running in an external server? Mine runs in LAN, sorry, I'm not sure what would be needed to make it work like that 🤔

yes, it's working on an oracle cloud+wireguard (i think it's great). I'd to enable ip forward to make it work (see my previous post). I'd issues also to install all together with motioneye (+ esp32cam). I think I will have to change cidr address on command sensor: command: host_result=$(host a0d7b954-wireguard); addon_ip=${host_result##* }; ip route replace 172.27.66.0/12 via $addon_ip; echo $addon_ip

thank you!

jarno83 commented 2 years ago

Hi, can anyone make a little guide in one document, how novice users like me can get wiregurd working with esp32? Thanks :) I think it can help more people that me ;)

fkoteam commented 2 years ago

Hi, can anyone make a little guide in one document, how novice users like me can get wiregurd working with esp32? Thanks :) I think it can help more people that me ;)

A quick and ugly guide. enjoy EDIT: see this comment

redstorm1 commented 2 years ago

Hi, can anyone make a little guide in one document, how novice users like me can get wiregurd working with esp32? Thanks :) I think it can help more people that me ;)

A quick and ugly guide. enjoy hass.docx

PSA this attachment is a virus.

ssieb commented 2 years ago

Why do you think it's a virus? It's a document describing how to setup wireguard on an esphome device.

redstorm1 commented 2 years ago

As my av picked up the doc is infected. Open it at your peril.Get Outlook for Android

ssieb commented 2 years ago

I opened it in LibreOffice and there were no warnings. I don't see any macros. However, an online virus scanner does say it has a problem. https://www.fortiguard.com/encyclopedia/virus/10092628 Use Windows at your peril. :-)

fkoteam commented 2 years ago

the virus is on your mind. here's an online version to install Home Assistant on the cloud with Wireguard and esphome.

https://docs.google.com/document/d/1qZ69Z8mk8uFgMNyqTZbkIQTE1_aEXn3BoerFWkDh70c/edit?usp=sharing

ssieb commented 2 years ago

@fkoteam, it's such a vague scan warning and I'm sure it's a false alarm caused by the funny urls you used in the document. You should probably make those just text and not real links.

trombik commented 2 years ago

tried to port my esp_wireguard to esphome. however, platformio has been troublesome with esp-idf, and still is. some call it "unpredictable wonky behavior". until almost two-years-old issue https://github.com/platformio/platform-espressif32/issues/453 is fixed, it's not possible. the problem is directory of lib_deps is not part of EXTRA_COMPONENT_DIRS, and platformio does not read Kconfig of lib_deps. they chose to implement their own, and failed to do it correctly. like it or not, that's the way it is.

that means you need to add list(APPEND EXTRA_COMPONENT_DIRS path) to CMakeLists.txt.

include($ENV{IDF_PATH}/tools/cmake/project.cmake)
list(APPEND EXTRA_COMPONENT_DIRS $ENV{PWD}/.pio/libdeps/wireguard)
project(wireguard)

a workaround is to add a feature to esphome that modifies CMakeLists.txt in the top directory. I don't think anyone would bother to implement it.

droscy commented 2 years ago

Hi all, hi @trombik, I succeded in compiling with esphome (esp-idf framework) your implementation with some additional commits (see my fork and branch https://github.com/droscy/esp_wireguard/tree/esphome/dev).

Now I'm facing the following issue: the connection to wireguard works only sometimes, the other times it fails with the following error on server syslog "Invalid handshake initiation from ip:port", and the error is repeated every 2-5 seconds. Do you have any hint?

This is my wg_settings.h file

#pragma once

#include <esp_wireguard.h>
#include "secrets.h"

char wg_peer_privkey[] = WG_PRIVATE_KEY;
char wg_peer_ip[] = WG_PEER_IP;
char wg_peer_ip_mask[] = WG_SERVER_DEFAULT_NETMASK;

char wg_server_pubkey[] = WG_SERVER_PUBKEY;
char wg_server_endpoint[] = WG_SERVER_ENDPOINT;
int wg_server_port = WG_SERVER_PORT;

static const char * const TAG = "wireguard";

esp_err_t wg_initialized = ESP_FAIL;
esp_err_t wg_connected = ESP_FAIL;

wireguard_config_t wg_config = ESP_WIREGUARD_CONFIG_DEFAULT();
wireguard_ctx_t ctx = ESP_WIREGUARD_CONTEXT_DEFAULT();

The secrets.h file contains the #defines for WG_* settings used above.

These are relevant parts in yaml file:

esphome:
  libraries: "https://github.com/droscy/esp_wireguard.git#esphome/1"
  includes:
    - secrets.h
    - wg_settings.h

time:
  - platform: sntp
    on_time_sync:
        then:
          - lambda: |-
              ESP_LOGD(TAG, "time synchronized");
    on_time:
      - seconds: 0
        minutes: /2
        then:
          - lambda: |-
              ESP_LOGD(TAG, "check");
              if(wg_initialized != ESP_OK)
              {
                  ESP_LOGD(TAG, "initializing...");

                  wg_config.private_key = wg_peer_privkey;
                  wg_config.public_key = wg_server_pubkey;
                  wg_config.allowed_ip = wg_peer_ip;
                  wg_config.allowed_ip_mask = wg_peer_ip_mask;
                  wg_config.endpoint = wg_server_endpoint;
                  wg_config.port = wg_server_port;
                  wg_config.persistent_keepalive = wg_keepalive;

                  wg_initialized = esp_wireguard_init(&wg_config, &ctx);

                  if(wg_initialized == ESP_OK)
                      ESP_LOGI(TAG, "initialized");
                  else
                      ESP_LOGW(TAG, "cannot initialize, error code %d", wg_initialized);
              }

              if(wg_initialized == ESP_OK && wg_connected != ESP_OK)
              {
                  ESP_LOGD(TAG, "connecting...");
                  wg_connected = esp_wireguard_connect(&ctx);
                  if(wg_connected == ESP_OK)
                      ESP_LOGI(TAG, "connected");
                  else
                      ESP_LOGW(TAG, "cannot connect, error code %d", wg_connected);
              }
trombik commented 2 years ago

as I didn't test your setup, i don't know exactly what is happening. however, your logic is not how esp_wireguard was implemented.

  1. esp_wireguard_init() should not be called multiple times
  2. esp_wireguard_connect() should not be called multiple times, and does not return whether or not the link is up, or connected. it merely returns the fact the function successfully started the connection attempt. the return value does not represents the link is connected
  3. after esp_wireguard_connect(), you should not reconnect. that is the responsibility of esp_wireguard, or underlying lwip.
  4. use esp_wireguardif_peer_is_up() when you want to know the peer is up, or the connection is in a good state. however, you cannot do much other than logging "peer is not up". esp_wireguard keeps trying to establish the link in the background.

do something like:

  1. when the network link is up, call esp_wireguard_init() once (probably in on_boot)
  2. when the time is synchronized, call esp_wireguard_connect() once (in on_time_sync), not multiple times
  3. call esp_wireguardif_peer_is_up() periodically just for debugging
droscy commented 2 years ago

Many thanks trombik.

Actually both init and connect are executed only once if they return ESP_OK due to the two ifs. I put them in a "crontab" just because I cannot user serial logging and the on_time_sync usually happens before the OTA logging is up, so this way I have 2 minutes to startup network logging.

But I was not aware that esp_wireguard_connect() returns immediately and not after a successful connection and that esp_wireguardif_peer_is_up() can be used to check the connection.

I'll change the yaml and I'll do more tests. Thanks.

trombik commented 2 years ago

@droscy is this change clear enough?

https://github.com/trombik/esp_wireguard/commit/e92381aebcb66729b50d045228e7a9a9f8868183

droscy commented 2 years ago

Yes, that's good, thanks. Just a tip, both connect() and peer_is_up() accept wireguard_ctx_t* so the argument should be &ctx.

trombik commented 2 years ago

@droscy good catch. will fix it. thanks

psxde commented 1 year ago

A problem seems that if you use e.g. mqtt: esphome tries to connect mqtt first before executing sntp - so if mqtt is inside the wireguard network, the wg connection will never be called because esphome is in an endless loop trying to connect to an ip address which not exists.

Someone have the same issue?

redstorm1 commented 1 year ago

Malware:MSOffice/Follina.536C!exploit found

From: Samuel Sieb @.> Sent: Monday, 13 June 2022 1:13 p.m. To: esphome/feature-requests @.> Cc: redstorm1 @.>; Comment @.> Subject: Re: [esphome/feature-requests] WireGuard Support for ESP32 (#1444)

Why do you think it's a virus? It's a document describing how to setup wireguard on an esphome device.

— Reply to this email directly, view it on GitHub https://github.com/esphome/feature-requests/issues/1444#issuecomment-1153352351 , or unsubscribe https://github.com/notifications/unsubscribe-auth/ACLBKNQ6KONTD4CFZQFVYILVO2DJBANCNFSM5FE3PAVA . You are receiving this because you commented. https://github.com/notifications/beacon/ACLBKNVVBHMTWHGFVRRAQG3VO2DJBA5CNFSM5FE3PAVKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOIS7MFHY.gif Message ID: @. @.> >

rovingclimber commented 1 year ago

Hi guys!

I've just been testing this using the CarlosGS method (ciniml/WireGuard-ESP32).

My setup is a little different - I already have a WireGuard endpoint set up on my router (OPNSense) which I use for external access (road warrior setup).

I've got so far as confirming the ESP32 is connected via WireGuard to my existing endpoint, I can see the handshake traffic occurring and if I traffic capture the server's WG interface I can see e.g. ping packets exiting to the node address as I would expect.

What I'm not getting is any connectivity in ESP32Home. Obviously my config differs from you guys above - my wireguard server is not the HA server itself - and there are a few points I'm not sure about here:

1) Normally with a wg node you can set "allowed IPs" with a mask which effectively sets the route table on the end device to determine which traffic goes via wg and which via the device's default gateway. I don't see a way to do that above - I can only set the node's IP address. 2) As above with Carlos method I'm not even setting a mask or peer IP ... I can't see how does the esp node even know what the "server" wg address is or how to communicate with HA? And how does HA know the esp address? 3) Is this lib even capable of understanding sending traffic through a gateway? I can do something funky with NAT to get around that I guess.

Any help appreciated!

ssieb commented 1 year ago

@redstorm1 as I mentioned earlier, that's a false positive for a really vague "virus" threat. There is no virus, just invalid urls in the document.

ssieb commented 1 year ago

@rovingclimber the ESP device doesn't connect to HA, so it doesn't need to know the address. When you add the device to HA, you give HA the VPN address of the device.

rovingclimber commented 1 year ago

@ssieb Thanks for the reply! I guess I'm struggling with 2 things: 1) I can't access the web interface of the ESP via wireguard. From the device debug I see the web interface is up on port 80, if I try to connect I can see traffic leave the wg interface on my router for port 80 on the device but nothing comes back. I can, however, see successful wg handshakes occurring so I know the keys etc are correct. 2) I don't know how to add a device in this context - normally the ESPhome gui does it for me ... for instance if I spin up a "fresh" ESPhome device and flash it the device shows online and I can add it to my dashboard ... I don't see anything in the config that tells HA the address of the device, so I don't know what to change or how to add my VPN device (which just shows offline after flashing)

From OPNSense wireguard status:

peer: XXXXXXXXXXXXXXXXXXXXXXXX=
  endpoint: 123.123.123.123:36215
  allowed ips: 192.168.252.15/32
  latest handshake: 1 minute, 18 seconds ago
  transfer: 41.62 KiB received, 23.29 KiB sent

From OPNSense packet capture on interface when trying to contact web server (see only outbound packets, nothing received)

wg1 10:30:22.316872 IP 192.168.252.1.54080 > 192.168.252.15.80: tcp 0
wg1 10:30:22.569605 IP 192.168.252.1.51424 > 192.168.252.15.80: tcp 0
wg1 10:30:23.325823 IP 192.168.252.1.54080 > 192.168.252.15.80: tcp 0
wg1 10:30:23.573555 IP 192.168.252.1.51424 > 192.168.252.15.80: tcp 0
wg1 10:30:25.336115 IP 192.168.252.1.54080 > 192.168.252.15.80: tcp 0

From ESP device log

[I][app:062]: setup() finished successfully!
[I][app:102]: ESPHome version 2022.10.0 compiled on Oct 24 2022, 14:35:47
[C][wifi:502]: WiFi:
[C][wifi:360]:   Local MAC: 58:BF:25:9D:6B:E0
[C][wifi:361]:   SSID: [redacted]
[C][wifi:362]:   IP Address: 192.168.98.36
[C][wifi:364]:   BSSID: [redacted]
[C][wifi:365]:   Hostname: 'wireguard-test'
[C][wifi:367]:   Signal strength: -31 dB ▂▄▆█
[C][wifi:371]:   Channel: 6
[C][wifi:372]:   Subnet: 255.255.255.0
[C][wifi:373]:   Gateway: 192.168.98.202
[C][wifi:374]:   DNS1: 192.168.98.202
[C][wifi:375]:   DNS2: 0.0.0.0
[D][sntp:075]: Synchronized time: 2022-10-25 11:46:15
[D][wireguard:029]: Starting...
[D][wireguard:031]: Initializing WG interface...
[D][wireguard:041]: Done...
[C][logger:275]: Logger:
[C][logger:276]:   Level: DEBUG
[C][logger:277]:   Log Baud Rate: 115200
[C][logger:278]:   Hardware UART: UART0
[C][web_server:125]: Web Server:
[C][web_server:126]:   Address: wireguard-test.local:80
[C][mdns:100]: mDNS:
[C][mdns:101]:   Hostname: wireguard-test
[C][ota:089]: Over-The-Air Updates:
[C][ota:090]:   Address: wireguard-test.local:3232
[C][ota:093]:   Using Password.
[C][api:138]: API Server:
[C][api:139]:   Address: wireguard-test.local:6053
[C][api:143]:   Using noise encryption: NO
[C][sntp:050]: SNTP Time:
[C][sntp:051]:   Server 1: '0.pool.ntp.org'
[C][sntp:052]:   Server 2: '1.pool.ntp.org'
[C][sntp:053]:   Server 3: '2.pool.ntp.org'
[C][sntp:054]:   Timezone: 'GMT0BST,M3.5.0/1,M10.5.0'
rovingclimber commented 1 year ago

Hi all! Just a note to say I did finally get this to work, this is what worked for me:

ESPHome yaml:

esphome:
  name: "wireguard-test"
  platform: esp32
  board: esp32dev
  arduino_version: latest
  libraries:
    - https://github.com/ciniml/WireGuard-ESP32-Arduino.git
  platformio_options:
    lib_deps: "ciniml/WireGuard-ESP32"
  includes:
    - wireguard-test.wg.h

wifi:
  ssid: "xxxxxxxxx"
  password: "xxxxxxxxx"
  use_address: 192.168.252.8

api:
  encryption:
    key: "F3lszhY1dYcfC/d1F50RKQ4A0tzDk/xW2SRCV+SWnOM="

ota:
  password: "1b48a9e64ef8810887fe9119fef57af7"

logger: { level: DEBUG, baud_rate: 115200}
web_server: { port: 80 }
time:
  - platform: sntp
    on_time_sync:
        then:
        - lambda: |
            static const char* TAG = "wireguard";
            ESP_LOGD(TAG, "Starting...");
            if( !wg.is_initialized() ) {
                        ESP_LOGD(TAG, "Initializing WG interface...");
                        if( !wg.begin(
                                local_ip,
                                private_key,
                                endpoint_address,
                                public_key,
                                endpoint_port) ) {
                            ESP_LOGD(TAG, "Failed to initialize WG interface.");
                        }
                    }

/config/esphome/wireguard-test.wg.h:

#include "esphome.h"
#include "WireGuard-ESP32.h"

static WireGuard wg;

char private_key[] = "XXXXX="; // private key of the client (ESP)
char public_key[]  = "XXXXX="; // public key of the server (remote linux VPN server)
IPAddress local_ip(192,168,252,8);           // VPN IP for this VPN client
char endpoint_address[] = "myhost.external.com"; // VPN/Wireguard server hostname
int endpoint_port = yyyyy;                   // VPN/Wireguard server port

In this example my wireguard endpoint is my OPNsense router, the use_address statement tells HA to connect to the ESP via 192.168.252.8 which is routable via OPNsense from LAN side. I confirm web interdace, API and OTA update all working, I've successfully tested with WEMOS LOLIN32 clone and ESP32-CAM, connected to mobile phone hotspot, all accessible from LAN via wireguard.

However ...... [see next post]

rovingclimber commented 1 year ago

... Having got ESPHome / wireguard working nicely via @davey @CarlosGS method above ....

My end-game actually is to wireguard enable this ESPHome BLE BMS (battery management system): https://github.com/syssi/esphome-jbd-bms

Unfortunately (or fortunately) this project is using ESP-IDF platform, not Arduino ... so the above method won't work.

@trombik @droscy I've just tried using your library as per your comments above but I can't get it to compile.

Here's my .yaml:

esphome:
  name: wg-test-idf
  libraries: "https://github.com/droscy/esp_wireguard.git#esphome/1"
  includes:
    - secrets.h
    - wg_settings.h

esp32:
  board: wemos_d1_mini32
  framework:
    type: esp-idf
    version: latest

logger:

api:
  encryption:
    key: "xxxxxxx"

ota:
  password: "xxxxxxx"

wifi:
  ssid: "xxxxxxx"
  password: "xxxxxxxxxxxx"

time:
  - platform: sntp
    on_time_sync:
        then:
          - lambda: |-
              ESP_LOGD(TAG, "time synchronized");
    on_time:
      - seconds: 0
        minutes: /2
        then:
          - lambda: |-
              ESP_LOGD(TAG, "check");
              if(wg_initialized != ESP_OK)
              {
                  ESP_LOGD(TAG, "initializing...");

                  wg_config.private_key = wg_peer_privkey;
                  wg_config.public_key = wg_server_pubkey;
                  wg_config.allowed_ip = wg_peer_ip;
                  wg_config.allowed_ip_mask = wg_peer_ip_mask;
                  wg_config.endpoint = wg_server_endpoint;
                  wg_config.port = wg_server_port;
                  wg_config.persistent_keepalive = wg_keepalive;

                  wg_initialized = esp_wireguard_init(&wg_config, &ctx);

                  if(wg_initialized == ESP_OK)
                      ESP_LOGI(TAG, "initialized");
                  else
                      ESP_LOGW(TAG, "cannot initialize, error code %d", wg_initialized);
              }

              if(wg_initialized == ESP_OK && wg_connected != ESP_OK)
              {
                  ESP_LOGD(TAG, "connecting...");
                  wg_connected = esp_wireguard_connect(&ctx);
                  if(wg_connected == ESP_OK)
                      ESP_LOGI(TAG, "connected");
                  else
                      ESP_LOGW(TAG, "cannot connect, error code %d", wg_connected);
              }

wg_settings.h is as yours above, except added bool wg_keepalive = true;

secrets.h I wasn't sure the format for some of the definitions but mine is like this:

#define WG_PRIVATE_KEY "XXXXXX="
#define WG_PEER_IP "123.123.123.123"
#define WG_SERVER_DEFAULT_NETMASK "255.255.255.255"
#define WG_SERVER_PUBKEY "XXXXXXXX="
#define WG_SERVER_ENDPOINT "my.endpoint.fqdn.com"
#define WG_SERVER_PORT 12345

On trying to build this is my output:

INFO Reading configuration /config/esphome/wg-test-idf.yaml...
INFO Detected timezone 'Europe/London'
INFO Generating C++ source...
INFO Compiling app...
Processing wg-test-idf (board: wemos_d1_mini32; framework: espidf; platform: platformio/espressif32 @ 3.5.0)
--------------------------------------------------------------------------------
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
 - framework-espidf @ 3.40302.0 (4.3.2) 
 - tool-cmake @ 3.16.4 
 - tool-ninja @ 1.7.1 
 - toolchain-riscv32-esp @ 8.4.0+2021r2-patch2 
 - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch2 
 - toolchain-xtensa-esp32s2 @ 8.4.0+2021r2-patch2
Reading CMake configuration...
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
Dependency Graph
|-- esp_wireguard @ 0.0.0-beta1+sha.18cf4e5
|-- noise-c @ 0.1.4
|   |-- libsodium @ 1.10018.1
Compiling /data/wg-test-idf/.pioenvs/wg-test-idf/lib830/esp_wireguard/wireguard.o
Compiling /data/wg-test-idf/.pioenvs/wg-test-idf/lib830/esp_wireguard/wireguardif.o
In file included from /data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.h:47,
                 from /data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.c:33:
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:43:31: error: 'CONFIG_WIREGUARD_MAX_SRC_IPS' undeclared here (not in a function); did you mean 'WIREGUARD_MAX_SRC_IPS'?
 #define WIREGUARD_MAX_SRC_IPS CONFIG_WIREGUARD_MAX_SRC_IPS
                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.h:126:49: note: in expansion of macro 'WIREGUARD_MAX_SRC_IPS'
  struct wireguard_allowed_ip allowed_source_ips[WIREGUARD_MAX_SRC_IPS];
                                                 ^~~~~~~~~~~~~~~~~~~~~
Compiling /data/wg-test-idf/.pioenvs/wg-test-idf/lib273/libsodium/crypto_hash/sha256/hash_sha256.o
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:42:29: error: 'CONFIG_WIREGUARD_MAX_PEERS' undeclared here (not in a function); did you mean 'WIREGUARD_MAX_PEERS'?
 #define WIREGUARD_MAX_PEERS CONFIG_WIREGUARD_MAX_PEERS
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.h:188:31: note: in expansion of macro 'WIREGUARD_MAX_PEERS'
   struct wireguard_peer peers[WIREGUARD_MAX_PEERS];
                               ^~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.c: In function 'wireguard_process_initiation_message':
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:46:37: error: 'CONFIG_MAX_INITIATIONS_PER_SECOND' undeclared (first use in this function); did you mean 'MAX_INITIATIONS_PER_SECOND'?
 #define MAX_INITIATIONS_PER_SECOND (CONFIG_MAX_INITIATIONS_PER_SECOND)
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:46:37: note: in definition of macro 'MAX_INITIATIONS_PER_SECOND'
 #define MAX_INITIATIONS_PER_SECOND (CONFIG_MAX_INITIATIONS_PER_SECOND)
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:46:37: note: each undeclared identifier is reported only once for each function it appears in
 #define MAX_INITIATIONS_PER_SECOND (CONFIG_MAX_INITIATIONS_PER_SECOND)
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:46:37: note: in definition of macro 'MAX_INITIATIONS_PER_SECOND'
 #define MAX_INITIATIONS_PER_SECOND (CONFIG_MAX_INITIATIONS_PER_SECOND)
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Compiling /data/wg-test-idf/.pioenvs/wg-test-idf/lib273/libsodium/crypto_onetimeauth/crypto_onetimeauth.o
In file included from /data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.h:47,
                 from /data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:49:
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:43:31: error: 'CONFIG_WIREGUARD_MAX_SRC_IPS' undeclared here (not in a function); did you mean 'WIREGUARD_MAX_SRC_IPS'?
 #define WIREGUARD_MAX_SRC_IPS CONFIG_WIREGUARD_MAX_SRC_IPS
                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.h:126:49: note: in expansion of macro 'WIREGUARD_MAX_SRC_IPS'
  struct wireguard_allowed_ip allowed_source_ips[WIREGUARD_MAX_SRC_IPS];
                                                 ^~~~~~~~~~~~~~~~~~~~~
*** [/data/wg-test-idf/.pioenvs/wg-test-idf/lib830/esp_wireguard/wireguard.o] Error 1
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard-platform.h:42:29: error: 'CONFIG_WIREGUARD_MAX_PEERS' undeclared here (not in a function); did you mean 'WIREGUARD_MAX_PEERS'?
 #define WIREGUARD_MAX_PEERS CONFIG_WIREGUARD_MAX_PEERS
                             ^~~~~~~~~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguard.h:188:31: note: in expansion of macro 'WIREGUARD_MAX_PEERS'
   struct wireguard_peer peers[WIREGUARD_MAX_PEERS];
                               ^~~~~~~~~~~~~~~~~~~
In file included from /data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:45:
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c: In function 'wireguardif_init':
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:922:41: error: 'underlying_netif' undeclared (first use in this function); did you mean 'udp_bind_netif'?
  ESP_LOGD(TAG, "underlying_netif = %p", underlying_netif);
                                         ^~~~~~~~~~~~~~~~
/data/cache/platformio/packages/framework-espidf/components/log/include/esp_log.h:334:137: note: in definition of macro 'ESP_LOG_LEVEL'
         if (level==ESP_LOG_ERROR )          { esp_log_write(ESP_LOG_ERROR,      tag, LOG_FORMAT(E, format), esp_log_timestamp(), tag, ##__VA_ARGS__); } \
                                                                                                                                         ^~~~~~~~~~~
/data/cache/platformio/packages/framework-espidf/components/log/include/esp_log.h:302:38: note: in expansion of macro 'ESP_LOG_LEVEL_LOCAL'
 #define ESP_LOGD( tag, format, ... ) ESP_LOG_LEVEL_LOCAL(ESP_LOG_DEBUG,   tag, format, ##__VA_ARGS__)
                                      ^~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:922:2: note: in expansion of macro 'ESP_LOGD'
  ESP_LOGD(TAG, "underlying_netif = %p", underlying_netif);
  ^~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:922:41: note: each undeclared identifier is reported only once for each function it appears in
  ESP_LOGD(TAG, "underlying_netif = %p", underlying_netif);
                                         ^~~~~~~~~~~~~~~~
/data/cache/platformio/packages/framework-espidf/components/log/include/esp_log.h:334:137: note: in definition of macro 'ESP_LOG_LEVEL'
         if (level==ESP_LOG_ERROR )          { esp_log_write(ESP_LOG_ERROR,      tag, LOG_FORMAT(E, format), esp_log_timestamp(), tag, ##__VA_ARGS__); } \
                                                                                                                                         ^~~~~~~~~~~
/data/cache/platformio/packages/framework-espidf/components/log/include/esp_log.h:302:38: note: in expansion of macro 'ESP_LOG_LEVEL_LOCAL'
 #define ESP_LOGD( tag, format, ... ) ESP_LOG_LEVEL_LOCAL(ESP_LOG_DEBUG,   tag, format, ##__VA_ARGS__)
                                      ^~~~~~~~~~~~~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:922:2: note: in expansion of macro 'ESP_LOGD'
  ESP_LOGD(TAG, "underlying_netif = %p", underlying_netif);
  ^~~~~~~~
/data/wg-test-idf/.piolibdeps/wg-test-idf/esp_wireguard/src/wireguardif.c:1002:1: error: label 'fail' defined but not used [-Werror=unused-label]
 fail:
 ^~~~
cc1: some warnings being treated as errors
*** [/data/wg-test-idf/.pioenvs/wg-test-idf/lib830/esp_wireguard/wireguardif.o] Error 1
========================= [FAILED] Took 23.65 seconds =========================
trombik commented 1 year ago

@rovingclimber see my comment at https://github.com/esphome/feature-requests/issues/1444#issuecomment-1166400974

droscy commented 1 year ago

trombik droscy I've just tried using your library as per your comments above but I can't get it to compile.

@rovingclimber you also need to add some defines to your yaml file

esphome:
  platformio_options:
    build_flags:
      - "-DCONFIG_WIREGUARD_ESP_NETIF"
      - "-DCONFIG_WIREGUARD_MAX_PEERS=1"
      - "-DCONFIG_WIREGUARD_MAX_SRC_IPS=2"
      - "-DCONFIG_MAX_INITIATIONS_PER_SECOND=2"
      - "-DCONFIG_WIREGUARD_x25519_IMPLEMENTATION_DEFAULT"

secrets.h I wasn't sure the format for some of the definitions but mine is like this:

The one you posted is ok, it contains only defines.

toreupfeet commented 1 year ago

Why is this feature not being added to ESPHome?

lhoracek commented 1 year ago

Started wrapping this into component to allow easy usage: https://github.com/esphome/esphome/pull/4256

Help wanted.

# equivalent shorthand for GitHub pull request
external_components:
  - source: github://pr#4256
    components: [ wireguard ]
wireguard:
  address: 10.0.0.1
  private_key: private_key=
  peer_key: public_key=
  peer_endpoint: wg.server.example
my-bam commented 1 year ago 
wireguard:
  address: 10.0.0.1
  private_key: private_key=
  peer_key: public_key=
  peer_endpoint: wg.server.example

Hi. I get an error: src/esphome/components/wireguard/wireguard.cpp:4:10: fatal error: arpa/inet.h: No such file or directory 4 | #include <arpa/inet.h> | ^~~~~~~~~~~~~ compilation terminated.

How do I fix it?

lhoracek commented 1 year ago 
wireguard:
  address: 10.0.0.1
  private_key: private_key=
  peer_key: public_key=
  peer_endpoint: wg.server.example

Hi. I get an error: src/esphome/components/wireguard/wireguard.cpp:4:10: fatal error: arpa/inet.h: No such file or directory 4 | #include <arpa/inet.h> | ^~~~~~~~~~~~~ compilation terminated.

How do I fix it?

What is you config? ESP32 or ESP8266 or .. ?