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Preliminary code to move to the new server

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This commit is contained in:
Frank Denis 2019-09-22 15:38:22 +02:00
parent 1f42134a69
commit a3efabd367
13 changed files with 213 additions and 730 deletions
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54
Dockerfile
View File

@ -1,17 +1,17 @@
FROM jedisct1/alpine-runit:latest
MAINTAINER Frank Denis
LABEL maintainer="Frank Denis"
SHELL ["/bin/sh", "-x", "-c"]
ENV SERIAL 3
ENV CFLAGS=-Ofast
ENV BUILD_DEPS make gcc musl-dev git libevent-dev expat-dev shadow autoconf file openssl-dev byacc linux-headers
ENV BUILD_DEPS curl make gcc musl-dev git libevent-dev expat-dev shadow autoconf file openssl-dev byacc linux-headers
ENV RUNTIME_DEPS bash util-linux coreutils findutils grep openssl ldns ldns-tools libevent expat libexecinfo coreutils drill ca-certificates
RUN apk --no-cache upgrade && apk add --no-cache $RUNTIME_DEPS
RUN update-ca-certificates 2> /dev/null || true
ENV UNBOUND_GIT_URL https://github.com/jedisct1/unbound.git
ENV UNBOUND_GIT_REVISION 4edb15ba417c78710069a5be8be3a6b5d8bdba9c
ENV UNBOUND_GIT_REVISION 35ac577d99d56869f2f87dcc7b5e36b8996df5ca
WORKDIR /tmp
@ -29,53 +29,41 @@ RUN apk add --no-cache $BUILD_DEPS && \
rm -fr /opt/unbound/share/man && \
rm -fr /tmp/* /var/tmp/*
ENV LIBSODIUM_GIT_URL https://github.com/jedisct1/libsodium.git
ENV RUSTFLAGS "-C target-feature=-crt-static -C link-arg=-s"
RUN apk add --no-cache $BUILD_DEPS && \
git clone --depth=1 --branch stable "$LIBSODIUM_GIT_URL" && \
cd libsodium && \
./configure --disable-dependency-tracking && \
make -j"$(getconf _NPROCESSORS_ONLN)" check && make -j"$(getconf _NPROCESSORS_ONLN)" install && \
ldconfig /usr/local/lib && \
apk del --purge $BUILD_DEPS && \
rm -fr /tmp/* /var/tmp/*
ENV DNSCRYPT_WRAPPER_GIT_URL https://github.com/jedisct1/dnscrypt-wrapper.git
ENV DNSCRYPT_WRAPPER_GIT_BRANCH xchacha-stamps
COPY queue.h /tmp
RUN apk add --no-cache $BUILD_DEPS && \
git clone --depth=1 --branch="${DNSCRYPT_WRAPPER_GIT_BRANCH}" "${DNSCRYPT_WRAPPER_GIT_URL}" && \
cd dnscrypt-wrapper && \
sed -i 's#<sys/queue.h>#"/tmp/queue.h"#' compat.h && \
sed -i 's#HAVE_BACKTRACE#NO_BACKTRACE#' compat.h && \
mkdir -p /opt/dnscrypt-wrapper/empty && \
groupadd _dnscrypt-wrapper && \
useradd -g _dnscrypt-wrapper -s /etc -d /opt/dnscrypt-wrapper/empty _dnscrypt-wrapper && \
groupadd _dnscrypt-signer && \
useradd -g _dnscrypt-signer -G _dnscrypt-wrapper -s /etc -d /dev/null _dnscrypt-signer && \
make -j"$(getconf _NPROCESSORS_ONLN)" configure && \
./configure --prefix=/opt/dnscrypt-wrapper && \
make -j"$(getconf _NPROCESSORS_ONLN)" install && \
curl -sSf https://sh.rustup.rs | bash -s -- -y --default-toolchain nightly
RUN source $HOME/.cargo/env && \
cargo install encrypted-dns && \
mkdir -p /opt/encrypted-dns/sbin && \
mkdir -p /opt/encrypted-dns/etc/keys && \
mv ~/.cargo/bin/encrypted-dns /opt/encrypted-dns/sbin/ && \
strip --strip-all /opt/encrypted-dns/sbin/encrypted-dns && \
groupadd _encrypted-dns && \
useradd -g _encrypted-dns -s /etc -d /opt/encrypted-dns/empty _encrypted-dns && \
chown _encrypted-dns:_encrypted-dns /opt/encrypted-dns/etc/keys && \
chmod 700 /opt/encrypted-dns/etc/keys && \
apk del --purge $BUILD_DEPS && \
rm -fr ~/.cargo ~/.rustup && \
rm -fr /tmp/* /var/tmp/*
RUN mkdir -p \
/etc/service/unbound \
/etc/service/watchdog
COPY encrypted-dns.toml.in /opt/encrypted-dns/etc/
COPY entrypoint.sh /
COPY unbound.sh /etc/service/unbound/run
COPY unbound-check.sh /etc/service/unbound/check
COPY dnscrypt-wrapper.sh /etc/service/dnscrypt-wrapper/run
COPY encrypted-dns.sh /etc/service/encrypted-dns/run
COPY key-rotation.sh /etc/service/key-rotation/run
COPY watchdog.sh /etc/service/watchdog/run
VOLUME ["/opt/dnscrypt-wrapper/etc/keys"]
VOLUME ["/opt/encrypted-dns/etc/keys"]
EXPOSE 443/udp 443/tcp

2
LICENSE
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@ -1,4 +1,4 @@
Copyright (c) 2015-2016, Frank Denis <github@pureftpd.org>
Copyright (c) 2015-2019, Frank Denis <github@pureftpd.org>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above

17
README.md
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@ -13,8 +13,8 @@ to get your resolver up and running.
Quickstart
==========
* [How to setup your own DNSCrypt server in less than 10 minutes on Scaleway](https://github.com/jedisct1/dnscrypt-proxy/wiki/How-to-setup-your-own-DNSCrypt-server-in-less-than-10-minutes)
* [DNSCrypt server with vultr.com](https://github.com/jedisct1/dnscrypt-proxy/wiki/DNSCrypt-server-with-vultr.com)
* [How to setup your own DNSCrypt server in less than 10 minutes on Scaleway](https://github.com/dnscrypt/dnscrypt-proxy/wiki/How-to-setup-your-own-DNSCrypt-server-in-less-than-10-minutes)
* [DNSCrypt server with vultr.com](https://github.com/dnscrypt/dnscrypt-proxy/wiki/DNSCrypt-server-with-vultr.com)
Installation
============
@ -104,12 +104,10 @@ Details
- Caching resolver: [Unbound](https://www.unbound.net/), with DNSSEC, prefetching,
and no logs. The number of threads and memory usage are automatically adjusted.
Latest stable version, compiled from source. qname minimisation is enabled.
- [libsodium](https://download.libsodium.org/doc/) - Latest stable version,
minimal build compiled from source.
- [dnscrypt-wrapper](https://github.com/Cofyc/dnscrypt-wrapper) - Latest stable version,
compiled from source.
- [encrypted-dns-server](https://github.com/jedisct1/dnscrypt-dns-server).
Compiled from source.
Keys and certificates are automatically rotated every 12 hour.
Keys and certificates are automatically rotated every 8 hour.
Kubernetes
==========
@ -128,8 +126,3 @@ in minutes.
To get your public key just view the logs for the `dnscrypt-init` job. The public
IP for your server is merely the `dnscrypt` service address.
Coming up next
==============
- Better isolation of the certificate signing process, in a dedicated container.

68
dnscrypt-wrapper.sh
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@ -1,68 +0,0 @@
#! /usr/bin/env bash
KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
STKEYS_DIR="${KEYS_DIR}/short-term"
LISTS_DIR="/opt/dnscrypt-wrapper/etc/lists"
BLACKLIST="${LISTS_DIR}/blacklist.txt"
prune() {
/usr/bin/find "$STKEYS_DIR" -type f -cmin +1440 -exec rm -f {} \;
}
rotation_needed() {
if [ "$(/usr/bin/find "$STKEYS_DIR" -name '*.cert' -type f -cmin -720 -print -quit | wc -l | sed 's/[^0-9]//g')" -le 0 ]; then
echo true
else
echo false
fi
}
new_key() {
ts=$(date '+%s')
/opt/dnscrypt-wrapper/sbin/dnscrypt-wrapper --gen-crypt-keypair \
--crypt-secretkey-file="${STKEYS_DIR}/${ts}.key" &&
/opt/dnscrypt-wrapper/sbin/dnscrypt-wrapper --gen-cert-file \
--xchacha20 \
--provider-publickey-file="${KEYS_DIR}/public.key" \
--provider-secretkey-file="${KEYS_DIR}/secret.key" \
--crypt-secretkey-file="${STKEYS_DIR}/${ts}.key" \
--provider-cert-file="${STKEYS_DIR}/${ts}.cert" \
--cert-file-expire-days=1
[ $? -ne 0 ] && rm -f "${STKEYS_DIR}/${ts}.key" "${STKEYS_DIR}/${ts}.cert"
}
stkeys_files() {
res=""
for file in $(ls "$STKEYS_DIR"/[0-9]*.key); do
res="${res}${file},"
done
echo "$res"
}
stcerts_files() {
res=""
for file in $(ls "$STKEYS_DIR"/[0-9]*.cert); do
res="${res}${file},"
done
echo "$res"
}
if [ ! -f "$KEYS_DIR/provider_name" ]; then
exit 1
fi
provider_name=$(cat "$KEYS_DIR/provider_name")
mkdir -p "$STKEYS_DIR"
prune
[ "$(rotation_needed)" = true ] && new_key
[ -r "$BLACKLIST" ] && blacklist_opt="--blacklist-file=${BLACKLIST}"
exec /opt/dnscrypt-wrapper/sbin/dnscrypt-wrapper \
--user=_dnscrypt-wrapper \
--listen-address=[::]:443 \
--resolver-address=127.0.0.1:553 \
--provider-name="$provider_name" \
--provider-cert-file="$(stcerts_files)" \
--crypt-secretkey-file="$(stkeys_files)" \
$blacklist_opt

15
encrypted-dns.sh Executable file
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@ -0,0 +1,15 @@
#! /usr/bin/env bash
LEGACY_KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
CONF_DIR="/opt/encrypted-dns/etc"
KEYS_DIR="/opt/encrypted-dns/etc/keys"
LISTS_DIR="/opt/encrypted-dns/etc/lists"
BLACKLIST="${LISTS_DIR}/blacklist.txt"
CONFIG_FILE="${CONF_DIR}/encrypted-dns.toml"
if [ ! -f "$KEYS_DIR/provider_name" ]; then
exit 1
fi
provider_name=$(cat "$KEYS_DIR/provider_name")
exec /opt/encrypted-dns/sbin/encrypted-dns --config "$CONFIG_FILE"

151
encrypted-dns.toml.in Normal file
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@ -0,0 +1,151 @@
####################################################
# #
# Encrypted DNS Server configuration #
# #
####################################################
##################################
# Global settings #
##################################
## IP addresses and ports to listen to, as well as their external IP
## If there is no NAT involved, `local` and `external` can be the same.
## As many addresses as needed can be configured here, IPv4 and/or IPv6.
listen_addrs = [
{ local = "0.0.0.0:443", external = "@EXTERNAL_IPV4@" }
]
## Upstream DNS server and port
upstream_addr = "127.0.0.1:53"
## File name to save the state to
state_file = "/opt/encrypted-dns/etc/keys/encrypted-dns.state"
## UDP timeout in seconds
udp_timeout = 10
## TCP timeout in seconds
tcp_timeout = 10
## Maximum active UDP sockets
udp_max_active_connections = 1000
## Maximum active TCP connections
tcp_max_active_connections = 100
## IP address to connect to upstream servers from.
## You probably do not want to change this. `0.0.0.0` should be fine.
external_addr = "0.0.0.0"
## Built-in DNS cache capacity
cache_capacity = 50000
## DNS cache: minimum TTL
cache_ttl_min = 600
## DNS cache: max TTL
cache_ttl_max = 86400
## DNS cache: error TTL
cache_ttl_error = 600
## Run as a background process
daemonize = false
## Log file
# log_file = "/tmp/encrypted-dns.log"
## PID file
# pid_file = "/tmp/encrypted-dns.pid"
## User name to drop privileges to, when started as root.
# user = "nobody"
## Group name to drop privileges to, when started as root.
# group = "nobody"
## Path to chroot() to, when started as root.
## The path to the state file is relative to the chroot base.
# chroot = "/var/empty"
####################################
# DNSCrypt settings #
####################################
[dnscrypt]
## Provider name (with or without the `2.dnscrypt-cert.` prefix)
provider_name = "@PROVIDER_NAME@"
## Does the server support DNSSEC?
dnssec = true
## Does the server always returns correct answers (no filtering, including ad blocking)?
no_filters = true
## Set to `true` if the server doesn't keep any information that can be used to identify users
no_logs = true
## Key cache capacity, per certificate
key_cache_capacity = 10000
###############################
# TLS settings #
###############################
[tls]
## Where to prooxy TLS connections to (e.g. DoH server)
# upstream_addr = "127.0.0.1:4343"

31
entrypoint.sh
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@ -4,7 +4,11 @@ set -e
action="$1"
KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
LEGACY_KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
KEYS_DIR="/opt/encrypted-dns/etc/keys"
CONF_DIR="/opt/encrypted-dns/etc"
CONFIG_FILE="${CONF_DIR}/encrypted-dns.toml"
# -N provider-name -E external-ip-address:port
@ -37,18 +41,14 @@ init() {
esac
echo "Provider name: [$provider_name]"
cd "$KEYS_DIR"
/opt/dnscrypt-wrapper/sbin/dnscrypt-wrapper \
--gen-provider-keypair --nolog --dnssec --nofilter \
--provider-name="$provider_name" --ext-address="$ext_address" |
tee "${KEYS_DIR}/provider-info.txt"
chmod 640 "${KEYS_DIR}/secret.key"
chmod 644 "${KEYS_DIR}/public.key"
chown root:_dnscrypt-signer "${KEYS_DIR}/public.key" "${KEYS_DIR}/secret.key"
echo "$provider_name" > "${KEYS_DIR}/provider_name"
chmod 644 "${KEYS_DIR}/provider_name"
hexdump -ve '1/1 "%.2x"' < "${KEYS_DIR}/public.key" > "${KEYS_DIR}/public.key.txt"
chmod 644 "${KEYS_DIR}/public.key.txt"
/opt/encrypted-dns/sbin/dnscrypted-dns \
--config "$CONFIG_FILE" --dry-run |
tee "${KEYS_DIR}/provider-info.txt"
echo
echo -----------------------------------------------------------------------
echo
@ -59,16 +59,13 @@ init() {
provider_info() {
ensure_initialized
echo "Provider name:"
cat "${KEYS_DIR}/provider_name"
echo
echo "Provider public key:"
cat "${KEYS_DIR}/public.key.txt"
cat "${KEYS_DIR}/provider-info.txt"
echo
}
is_initialized() {
if [ ! -f "${KEYS_DIR}/public.key" ] && [ ! -f "${KEYS_DIR}/secret.key" ] && [ ! -f "${KEYS_DIR}/provider_name" ]; then
if [ ! -f "${KEYS_DIR}/encrypted-dns.state" ] && [ ! -f "${KEYS_DIR}/provider-info.txt" ] && [ ! -f "${KEYS_DIR}/provider_name" ]; then
echo no
else
echo yes
@ -104,7 +101,7 @@ Ports 443/udp and 443/tcp have to be publicly exposed.
* provider-info: prints the provider name and provider public key.
This container has a single volume that you might want to securely keep a
backup of: /opt/dnscrypt-wrapper/etc/keys
backup of: /opt/encrypted-dns/etc/keys
EOT
exit 1
}

18
key-rotation.sh
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@ -1,18 +0,0 @@
#! /usr/bin/env bash
sleep 1800
KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
STKEYS_DIR="${KEYS_DIR}/short-term"
rotation_needed() {
if [ "$(/usr/bin/find "$STKEYS_DIR" -type f -cmin -720 -print -quit | wc -l | sed 's/[^0-9]//g')" -le 0 ]; then
echo true
else
echo false
fi
}
[ "$(rotation_needed)" = true ] || exit 0
sv status dnscrypt-wrapper | grep -E -q '^run:' || exit 0
sv restart dnscrypt-wrapper

2
kube/dnscrypt-deployment.yml
View File

@ -20,7 +20,7 @@ spec:
name: dnscrypt
volumeMounts:
- name: dnscrypt-keys
mountPath: /opt/dnscrypt-wrapper/etc/keys
mountPath: /opt/encrypted-dns/etc/keys
command: ["/entrypoint.sh", "start"]
resources:
requests:

2
kube/dnscrypt-init-job.yml
View File

@ -13,7 +13,7 @@ spec:
command: ["/entrypoint.sh", "init", "-N", "example.com", "-E", "192.168.1.1:443"]
volumeMounts:
- name: dnscrypt-keys
mountPath: /opt/dnscrypt-wrapper/etc/keys
mountPath: /opt/encrypted-dns/etc/keys
restartPolicy: Never
volumes:
- name: dnscrypt-keys

574
queue.h
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@ -1,574 +0,0 @@
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)queue.h 8.5 (Berkeley) 8/20/94
*/
#ifndef _SYS_QUEUE_H_
#define _SYS_QUEUE_H_
/*
* This file defines five types of data structures: singly-linked lists,
* lists, simple queues, tail queues, and circular queues.
*
* A singly-linked list is headed by a single forward pointer. The
* elements are singly linked for minimum space and pointer manipulation
* overhead at the expense of O(n) removal for arbitrary elements. New
* elements can be added to the list after an existing element or at the
* head of the list. Elements being removed from the head of the list
* should use the explicit macro for this purpose for optimum
* efficiency. A singly-linked list may only be traversed in the forward
* direction. Singly-linked lists are ideal for applications with large
* datasets and few or no removals or for implementing a LIFO queue.
*
* A list is headed by a single forward pointer (or an array of forward
* pointers for a hash table header). The elements are doubly linked
* so that an arbitrary element can be removed without a need to
* traverse the list. New elements can be added to the list before
* or after an existing element or at the head of the list. A list
* may only be traversed in the forward direction.
*
* A simple queue is headed by a pair of pointers, one the head of the
* list and the other to the tail of the list. The elements are singly
* linked to save space, so elements can only be removed from the
* head of the list. New elements can be added to the list after
* an existing element, at the head of the list, or at the end of the
* list. A simple queue may only be traversed in the forward direction.
*
* A tail queue is headed by a pair of pointers, one to the head of the
* list and the other to the tail of the list. The elements are doubly
* linked so that an arbitrary element can be removed without a need to
* traverse the list. New elements can be added to the list before or
* after an existing element, at the head of the list, or at the end of
* the list. A tail queue may be traversed in either direction.
*
* A circle queue is headed by a pair of pointers, one to the head of the
* list and the other to the tail of the list. The elements are doubly
* linked so that an arbitrary element can be removed without a need to
* traverse the list. New elements can be added to the list before or after
* an existing element, at the head of the list, or at the end of the list.
* A circle queue may be traversed in either direction, but has a more
* complex end of list detection.
*
* For details on the use of these macros, see the queue(3) manual page.
*/
/*
* List definitions.
*/
#define LIST_HEAD(name, type) \
struct name { \
struct type *lh_first; /* first element */ \
}
#define LIST_HEAD_INITIALIZER(head) \
{ NULL }
#define LIST_ENTRY(type) \
struct { \
struct type *le_next; /* next element */ \
struct type **le_prev; /* address of previous next element */ \
}
/*
* List functions.
*/
#define LIST_INIT(head) do { \
(head)->lh_first = NULL; \
} while (/*CONSTCOND*/0)
#define LIST_INSERT_AFTER(listelm, elm, field) do { \
if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \
(listelm)->field.le_next->field.le_prev = \
&(elm)->field.le_next; \
(listelm)->field.le_next = (elm); \
(elm)->field.le_prev = &(listelm)->field.le_next; \
} while (/*CONSTCOND*/0)
#define LIST_INSERT_BEFORE(listelm, elm, field) do { \
(elm)->field.le_prev = (listelm)->field.le_prev; \
(elm)->field.le_next = (listelm); \
*(listelm)->field.le_prev = (elm); \
(listelm)->field.le_prev = &(elm)->field.le_next; \
} while (/*CONSTCOND*/0)
#define LIST_INSERT_HEAD(head, elm, field) do { \
if (((elm)->field.le_next = (head)->lh_first) != NULL) \
(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
(head)->lh_first = (elm); \
(elm)->field.le_prev = &(head)->lh_first; \
} while (/*CONSTCOND*/0)
#define LIST_REMOVE(elm, field) do { \
if ((elm)->field.le_next != NULL) \
(elm)->field.le_next->field.le_prev = \
(elm)->field.le_prev; \
*(elm)->field.le_prev = (elm)->field.le_next; \
} while (/*CONSTCOND*/0)
#define LIST_FOREACH(var, head, field) \
for ((var) = ((head)->lh_first); \
(var); \
(var) = ((var)->field.le_next))
/*
* List access methods.
*/
#define LIST_EMPTY(head) ((head)->lh_first == NULL)
#define LIST_FIRST(head) ((head)->lh_first)
#define LIST_NEXT(elm, field) ((elm)->field.le_next)
/*
* Singly-linked List definitions.
*/
#define SLIST_HEAD(name, type) \
struct name { \
struct type *slh_first; /* first element */ \
}
#define SLIST_HEAD_INITIALIZER(head) \
{ NULL }
#define SLIST_ENTRY(type) \
struct { \
struct type *sle_next; /* next element */ \
}
/*
* Singly-linked List functions.
*/
#define SLIST_INIT(head) do { \
(head)->slh_first = NULL; \
} while (/*CONSTCOND*/0)
#define SLIST_INSERT_AFTER(slistelm, elm, field) do { \
(elm)->field.sle_next = (slistelm)->field.sle_next; \
(slistelm)->field.sle_next = (elm); \
} while (/*CONSTCOND*/0)
#define SLIST_INSERT_HEAD(head, elm, field) do { \
(elm)->field.sle_next = (head)->slh_first; \
(head)->slh_first = (elm); \
} while (/*CONSTCOND*/0)
#define SLIST_REMOVE_HEAD(head, field) do { \
(head)->slh_first = (head)->slh_first->field.sle_next; \
} while (/*CONSTCOND*/0)
#define SLIST_REMOVE(head, elm, type, field) do { \
if ((head)->slh_first == (elm)) { \
SLIST_REMOVE_HEAD((head), field); \
} \
else { \
struct type *curelm = (head)->slh_first; \
while(curelm->field.sle_next != (elm)) \
curelm = curelm->field.sle_next; \
curelm->field.sle_next = \
curelm->field.sle_next->field.sle_next; \
} \
} while (/*CONSTCOND*/0)
#define SLIST_FOREACH(var, head, field) \
for((var) = (head)->slh_first; (var); (var) = (var)->field.sle_next)
/*
* Singly-linked List access methods.
*/
#define SLIST_EMPTY(head) ((head)->slh_first == NULL)
#define SLIST_FIRST(head) ((head)->slh_first)
#define SLIST_NEXT(elm, field) ((elm)->field.sle_next)
/*
* Singly-linked Tail queue declarations.
*/
#define STAILQ_HEAD(name, type) \
struct name { \
struct type *stqh_first; /* first element */ \
struct type **stqh_last; /* addr of last next element */ \
}
#define STAILQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).stqh_first }
#define STAILQ_ENTRY(type) \
struct { \
struct type *stqe_next; /* next element */ \
}
/*
* Singly-linked Tail queue functions.
*/
#define STAILQ_INIT(head) do { \
(head)->stqh_first = NULL; \
(head)->stqh_last = &(head)->stqh_first; \
} while (/*CONSTCOND*/0)
#define STAILQ_INSERT_HEAD(head, elm, field) do { \
if (((elm)->field.stqe_next = (head)->stqh_first) == NULL) \
(head)->stqh_last = &(elm)->field.stqe_next; \
(head)->stqh_first = (elm); \
} while (/*CONSTCOND*/0)
#define STAILQ_INSERT_TAIL(head, elm, field) do { \
(elm)->field.stqe_next = NULL; \
*(head)->stqh_last = (elm); \
(head)->stqh_last = &(elm)->field.stqe_next; \
} while (/*CONSTCOND*/0)
#define STAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
if (((elm)->field.stqe_next = (listelm)->field.stqe_next) == NULL)\
(head)->stqh_last = &(elm)->field.stqe_next; \
(listelm)->field.stqe_next = (elm); \
} while (/*CONSTCOND*/0)
#define STAILQ_REMOVE_HEAD(head, field) do { \
if (((head)->stqh_first = (head)->stqh_first->field.stqe_next) == NULL) \
(head)->stqh_last = &(head)->stqh_first; \
} while (/*CONSTCOND*/0)
#define STAILQ_REMOVE(head, elm, type, field) do { \
if ((head)->stqh_first == (elm)) { \
STAILQ_REMOVE_HEAD((head), field); \
} else { \
struct type *curelm = (head)->stqh_first; \
while (curelm->field.stqe_next != (elm)) \
curelm = curelm->field.stqe_next; \
if ((curelm->field.stqe_next = \
curelm->field.stqe_next->field.stqe_next) == NULL) \
(head)->stqh_last = &(curelm)->field.stqe_next; \
} \
} while (/*CONSTCOND*/0)
#define STAILQ_FOREACH(var, head, field) \
for ((var) = ((head)->stqh_first); \
(var); \
(var) = ((var)->field.stqe_next))
#define STAILQ_CONCAT(head1, head2) do { \
if (!STAILQ_EMPTY((head2))) { \
*(head1)->stqh_last = (head2)->stqh_first; \
(head1)->stqh_last = (head2)->stqh_last; \
STAILQ_INIT((head2)); \
} \
} while (/*CONSTCOND*/0)
/*
* Singly-linked Tail queue access methods.
*/
#define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
#define STAILQ_FIRST(head) ((head)->stqh_first)
#define STAILQ_NEXT(elm, field) ((elm)->field.stqe_next)
/*
* Simple queue definitions.
*/
#define SIMPLEQ_HEAD(name, type) \
struct name { \
struct type *sqh_first; /* first element */ \
struct type **sqh_last; /* addr of last next element */ \
}
#define SIMPLEQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).sqh_first }
#define SIMPLEQ_ENTRY(type) \
struct { \
struct type *sqe_next; /* next element */ \
}
/*
* Simple queue functions.
*/
#define SIMPLEQ_INIT(head) do { \
(head)->sqh_first = NULL; \
(head)->sqh_last = &(head)->sqh_first; \
} while (/*CONSTCOND*/0)
#define SIMPLEQ_INSERT_HEAD(head, elm, field) do { \
if (((elm)->field.sqe_next = (head)->sqh_first) == NULL) \
(head)->sqh_last = &(elm)->field.sqe_next; \
(head)->sqh_first = (elm); \
} while (/*CONSTCOND*/0)
#define SIMPLEQ_INSERT_TAIL(head, elm, field) do { \
(elm)->field.sqe_next = NULL; \
*(head)->sqh_last = (elm); \
(head)->sqh_last = &(elm)->field.sqe_next; \
} while (/*CONSTCOND*/0)
#define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
(head)->sqh_last = &(elm)->field.sqe_next; \
(listelm)->field.sqe_next = (elm); \
} while (/*CONSTCOND*/0)
#define SIMPLEQ_REMOVE_HEAD(head, field) do { \
if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
(head)->sqh_last = &(head)->sqh_first; \
} while (/*CONSTCOND*/0)
#define SIMPLEQ_REMOVE(head, elm, type, field) do { \
if ((head)->sqh_first == (elm)) { \
SIMPLEQ_REMOVE_HEAD((head), field); \
} else { \
struct type *curelm = (head)->sqh_first; \
while (curelm->field.sqe_next != (elm)) \
curelm = curelm->field.sqe_next; \
if ((curelm->field.sqe_next = \
curelm->field.sqe_next->field.sqe_next) == NULL) \
(head)->sqh_last = &(curelm)->field.sqe_next; \
} \
} while (/*CONSTCOND*/0)
#define SIMPLEQ_FOREACH(var, head, field) \
for ((var) = ((head)->sqh_first); \
(var); \
(var) = ((var)->field.sqe_next))
/*
* Simple queue access methods.
*/
#define SIMPLEQ_EMPTY(head) ((head)->sqh_first == NULL)
#define SIMPLEQ_FIRST(head) ((head)->sqh_first)
#define SIMPLEQ_NEXT(elm, field) ((elm)->field.sqe_next)
/*
* Tail queue definitions.
*/
#define _TAILQ_HEAD(name, type, qual) \
struct name { \
qual type *tqh_first; /* first element */ \
qual type *qual *tqh_last; /* addr of last next element */ \
}
#define TAILQ_HEAD(name, type) _TAILQ_HEAD(name, struct type,)
#define TAILQ_HEAD_INITIALIZER(head) \
{ NULL, &(head).tqh_first }
#define _TAILQ_ENTRY(type, qual) \
struct { \
qual type *tqe_next; /* next element */ \
qual type *qual *tqe_prev; /* address of previous next element */\
}
#define TAILQ_ENTRY(type) _TAILQ_ENTRY(struct type,)
/*
* Tail queue functions.
*/
#define TAILQ_INIT(head) do { \
(head)->tqh_first = NULL; \
(head)->tqh_last = &(head)->tqh_first; \
} while (/*CONSTCOND*/0)
#define TAILQ_INSERT_HEAD(head, elm, field) do { \
if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
(head)->tqh_first->field.tqe_prev = \
&(elm)->field.tqe_next; \
else \
(head)->tqh_last = &(elm)->field.tqe_next; \
(head)->tqh_first = (elm); \
(elm)->field.tqe_prev = &(head)->tqh_first; \
} while (/*CONSTCOND*/0)
#define TAILQ_INSERT_TAIL(head, elm, field) do { \
(elm)->field.tqe_next = NULL; \
(elm)->field.tqe_prev = (head)->tqh_last; \
*(head)->tqh_last = (elm); \
(head)->tqh_last = &(elm)->field.tqe_next; \
} while (/*CONSTCOND*/0)
#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
(elm)->field.tqe_next->field.tqe_prev = \
&(elm)->field.tqe_next; \
else \
(head)->tqh_last = &(elm)->field.tqe_next; \
(listelm)->field.tqe_next = (elm); \
(elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
} while (/*CONSTCOND*/0)
#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
(elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
(elm)->field.tqe_next = (listelm); \
*(listelm)->field.tqe_prev = (elm); \
(listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
} while (/*CONSTCOND*/0)
#define TAILQ_REMOVE(head, elm, field) do { \
if (((elm)->field.tqe_next) != NULL) \
(elm)->field.tqe_next->field.tqe_prev = \
(elm)->field.tqe_prev; \
else \
(head)->tqh_last = (elm)->field.tqe_prev; \
*(elm)->field.tqe_prev = (elm)->field.tqe_next; \
} while (/*CONSTCOND*/0)
#define TAILQ_FOREACH(var, head, field) \
for ((var) = ((head)->tqh_first); \
(var); \
(var) = ((var)->field.tqe_next))
#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last)); \
(var); \
(var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))
#define TAILQ_CONCAT(head1, head2, field) do { \
if (!TAILQ_EMPTY(head2)) { \
*(head1)->tqh_last = (head2)->tqh_first; \
(head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
(head1)->tqh_last = (head2)->tqh_last; \
TAILQ_INIT((head2)); \
} \
} while (/*CONSTCOND*/0)
/*
* Tail queue access methods.
*/
#define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
#define TAILQ_FIRST(head) ((head)->tqh_first)
#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
#define TAILQ_LAST(head, headname) \
(*(((struct headname *)((head)->tqh_last))->tqh_last))
#define TAILQ_PREV(elm, headname, field) \
(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
/*
* Circular queue definitions.
*/
#define CIRCLEQ_HEAD(name, type) \
struct name { \
struct type *cqh_first; /* first element */ \
struct type *cqh_last; /* last element */ \
}
#define CIRCLEQ_HEAD_INITIALIZER(head) \
{ (void *)&head, (void *)&head }
#define CIRCLEQ_ENTRY(type) \
struct { \
struct type *cqe_next; /* next element */ \
struct type *cqe_prev; /* previous element */ \
}
/*
* Circular queue functions.
*/
#define CIRCLEQ_INIT(head) do { \
(head)->cqh_first = (void *)(head); \
(head)->cqh_last = (void *)(head); \
} while (/*CONSTCOND*/0)
#define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do { \
(elm)->field.cqe_next = (listelm)->field.cqe_next; \
(elm)->field.cqe_prev = (listelm); \
if ((listelm)->field.cqe_next == (void *)(head)) \
(head)->cqh_last = (elm); \
else \
(listelm)->field.cqe_next->field.cqe_prev = (elm); \
(listelm)->field.cqe_next = (elm); \
} while (/*CONSTCOND*/0)
#define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do { \
(elm)->field.cqe_next = (listelm); \
(elm)->field.cqe_prev = (listelm)->field.cqe_prev; \
if ((listelm)->field.cqe_prev == (void *)(head)) \
(head)->cqh_first = (elm); \
else \
(listelm)->field.cqe_prev->field.cqe_next = (elm); \
(listelm)->field.cqe_prev = (elm); \
} while (/*CONSTCOND*/0)
#define CIRCLEQ_INSERT_HEAD(head, elm, field) do { \
(elm)->field.cqe_next = (head)->cqh_first; \
(elm)->field.cqe_prev = (void *)(head); \
if ((head)->cqh_last == (void *)(head)) \
(head)->cqh_last = (elm); \
else \
(head)->cqh_first->field.cqe_prev = (elm); \
(head)->cqh_first = (elm); \
} while (/*CONSTCOND*/0)
#define CIRCLEQ_INSERT_TAIL(head, elm, field) do { \
(elm)->field.cqe_next = (void *)(head); \
(elm)->field.cqe_prev = (head)->cqh_last; \
if ((head)->cqh_first == (void *)(head)) \
(head)->cqh_first = (elm); \
else \
(head)->cqh_last->field.cqe_next = (elm); \
(head)->cqh_last = (elm); \
} while (/*CONSTCOND*/0)
#define CIRCLEQ_REMOVE(head, elm, field) do { \
if ((elm)->field.cqe_next == (void *)(head)) \
(head)->cqh_last = (elm)->field.cqe_prev; \
else \
(elm)->field.cqe_next->field.cqe_prev = \
(elm)->field.cqe_prev; \
if ((elm)->field.cqe_prev == (void *)(head)) \
(head)->cqh_first = (elm)->field.cqe_next; \
else \
(elm)->field.cqe_prev->field.cqe_next = \
(elm)->field.cqe_next; \
} while (/*CONSTCOND*/0)
#define CIRCLEQ_FOREACH(var, head, field) \
for ((var) = ((head)->cqh_first); \
(var) != (const void *)(head); \
(var) = ((var)->field.cqe_next))
#define CIRCLEQ_FOREACH_REVERSE(var, head, field) \
for ((var) = ((head)->cqh_last); \
(var) != (const void *)(head); \
(var) = ((var)->field.cqe_prev))
/*
* Circular queue access methods.
*/
#define CIRCLEQ_EMPTY(head) ((head)->cqh_first == (void *)(head))
#define CIRCLEQ_FIRST(head) ((head)->cqh_first)
#define CIRCLEQ_LAST(head) ((head)->cqh_last)
#define CIRCLEQ_NEXT(elm, field) ((elm)->field.cqe_next)
#define CIRCLEQ_PREV(elm, field) ((elm)->field.cqe_prev)
#define CIRCLEQ_LOOP_NEXT(head, elm, field) \
(((elm)->field.cqe_next == (void *)(head)) \
? ((head)->cqh_first) \
: (elm->field.cqe_next))
#define CIRCLEQ_LOOP_PREV(head, elm, field) \
(((elm)->field.cqe_prev == (void *)(head)) \
? ((head)->cqh_last) \
: (elm->field.cqe_prev))
#endif /* sys/queue.h */

2
unbound.sh
View File

@ -1,6 +1,6 @@
#! /usr/bin/env bash
KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
KEYS_DIR="/opt/encrypted-dns/etc/keys"
ZONES_DIR="/opt/unbound/etc/unbound/zones"
reserved=134217728

7
watchdog.sh
View File

@ -2,15 +2,14 @@
sleep 300
for service in unbound dnscrypt-wrapper; do
for service in unbound encrypted-dns; do
sv check "$service" || sv force-restart "$service"
done
KEYS_DIR="/opt/dnscrypt-wrapper/etc/keys"
KEYS_DIR="/opt/encrypted-dns/etc/keys"
GRACE_PERIOD=60
provider_key=$(cat "${KEYS_DIR}/public.key.txt")
provider_name=$(cat "${KEYS_DIR}/provider_name")
drill -p 443 -Q TXT "$provider_name" @127.0.0.1 ||
sv force-restart dnscrypt-wrapper
sv force-restart encrypted-dns