IPv6: #259 #253

- implement forwarding
- implement random CIDR

Signed-off-by: Jasmin Fazlic <[email protected]>

Author: pfandl

Dockerfile.artifact

@@ -3,7 +3,7 @@ ARG DEBIAN_VERSION=10
 
 FROM --platform=$TARGETPLATFORM debian:${DEBIAN_VERSION} AS build
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt update && apt install -y automake autotools-dev make gcc libglib2.0-dev libcap-dev libseccomp-dev git ninja-build python3-pip
+RUN apt update && apt install -y automake autotools-dev make gcc libglib2.0-dev libcap-dev libseccomp-dev libssl-dev git ninja-build python3-pip
 RUN pip3 install meson
 RUN git clone https://gitlab.freedesktop.org/slirp/libslirp.git /libslirp
 WORKDIR /libslirp

Dockerfile.buildtests

@@ -2,7 +2,7 @@ ARG LIBSLIRP_COMMIT=v4.6.1
 
 # Alpine
 FROM alpine:3 AS buildtest-alpine3-static
-RUN apk add --no-cache git build-base autoconf automake libtool linux-headers glib-dev glib-static libcap-static libcap-dev libseccomp-dev libseccomp-static git meson
+RUN apk add --no-cache git build-base autoconf automake libtool linux-headers glib-dev glib-static libcap-static libcap-dev libseccomp-dev openssl-dev openssl-libs-static libseccomp-static git meson
 RUN git clone https://gitlab.freedesktop.org/slirp/libslirp.git /libslirp
 WORKDIR /libslirp
 ARG LIBSLIRP_COMMIT
@@ -14,7 +14,7 @@ RUN ./autogen.sh && ./configure LDFLAGS="-static" && make && cp -f slirp4netns /
 # Ubuntu
 FROM ubuntu:18.04 AS buildtest-ubuntu1804-common
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt update && apt install -y automake autotools-dev make gcc libglib2.0-dev libcap-dev libseccomp-dev git ninja-build python3-pip
+RUN apt update && apt install -y automake autotools-dev make gcc libglib2.0-dev libcap-dev libseccomp-dev libssl-dev git ninja-build python3-pip
 RUN pip3 install meson
 RUN git clone https://gitlab.freedesktop.org/slirp/libslirp.git /libslirp
 WORKDIR /libslirp
@@ -32,7 +32,7 @@ RUN ./configure && make && cp -f slirp4netns /
 
 # openSUSE (dynamic only)
 FROM opensuse/leap:15 AS buildtest-opensuse15-common
-RUN zypper install -y --no-recommends autoconf automake gcc glib2-devel git make libcap-devel libseccomp-devel ninja python3-pip
+RUN zypper install -y --no-recommends autoconf automake gcc glib2-devel git make libcap-devel libseccomp-devel libopenssl-devel ninja python3-pip
 RUN pip3 install meson
 RUN git clone https://gitlab.freedesktop.org/slirp/libslirp.git /libslirp
 WORKDIR /libslirp

Dockerfile.tests

@@ -2,7 +2,7 @@ ARG LIBSLIRP_COMMIT=v4.6.1
 
 FROM ubuntu:20.04 AS build
 ENV DEBIAN_FRONTEND=noninteractive
-RUN apt update && apt install -y automake autotools-dev make gcc libglib2.0-dev libcap-dev libseccomp-dev git ninja-build python3-pip
+RUN apt update && apt install -y automake autotools-dev make gcc libglib2.0-dev libcap-dev libseccomp-dev libssl-dev git ninja-build python3-pip socat
 RUN pip3 install meson
 RUN git clone https://gitlab.freedesktop.org/slirp/libslirp.git /libslirp
 WORKDIR /libslirp

Makefile.am

@@ -7,11 +7,16 @@ noinst_LIBRARIES = libparson.a
 AM_TESTS_ENVIRONMENT = PATH="$(abs_top_builddir):$(PATH)"
 TESTS = tests/test-slirp4netns-api-socket.sh \
 				tests/test-slirp4netns-cidr.sh \
+				tests/test-slirp4netns-cidr6.sh \
 				tests/test-slirp4netns-configure.sh \
 				tests/test-slirp4netns-dhcp.sh \
 				tests/test-slirp4netns-disable-dns.sh \
 				tests/test-slirp4netns-disable-host-loopback.sh \
 				tests/test-slirp4netns-exit-fd.sh \
+				tests/test-slirp4netns-hostfwd.sh \
+				tests/test-slirp4netns-hostfwd4.sh \
+				tests/test-slirp4netns-hostfwd6.sh \
+				tests/test-slirp4netns-ipv6.sh \
 				tests/test-slirp4netns-macaddress.sh \
 				tests/test-slirp4netns-nspath.sh \
 				tests/test-slirp4netns-outbound-addr.sh \
@@ -47,7 +52,7 @@ libparson_a_CFLAGS = $(AM_CFLAGS) -I$(abs_top_builddir)/vendor/parson
 libparson_a_SOURCES = vendor/parson/parson.c
 
 slirp4netns_SOURCES = main.c slirp4netns.c api.c sandbox.c seccompfilter.c
-slirp4netns_LDADD = libparson.a @GLIB_LIBS@ @SLIRP_LIBS@ @LIBSECCOMP_LIBS@ -lpthread
+slirp4netns_LDADD = libparson.a @GLIB_LIBS@ @SLIRP_LIBS@ @LIBSECCOMP_LIBS@ -lpthread -lcrypto
 man1_MANS = slirp4netns.1
 
 generate-man:

README.md

@@ -1,4 +1,4 @@
-# slirp4netns: User-mode networking for unprivileged network namespaces 
+# slirp4netns: User-mode networking for unprivileged network namespaces
 
 slirp4netns provides user-mode networking ("slirp") for unprivileged network namespaces.
 
@@ -73,7 +73,7 @@ Also available as a package on almost all Linux distributions:
 * [Arch Linux](https://www.archlinux.org/packages/community/x86_64/slirp4netns/)
 * [openSUSE (since Leap 15.0)](https://build.opensuse.org/package/show/openSUSE%3AFactory/slirp4netns)
 * [SUSE Linux Enterprise (since 15)](https://build.opensuse.org/package/show/devel%3Akubic/slirp4netns)
-* [Debian GNU/Linux (since 10.0)](https://packages.debian.org/buster/slirp4netns) 
+* [Debian GNU/Linux (since 10.0)](https://packages.debian.org/buster/slirp4netns)
 * [Ubuntu (since 19.04)](https://packages.ubuntu.com/search?keywords=slirp4netns)
 * [NixOS](https://github.com/NixOS/nixpkgs/tree/master/pkgs/tools/networking/slirp4netns)
 * [Gentoo Linux](https://packages.gentoo.org/packages/app-emulation/slirp4netns)
@@ -126,7 +126,7 @@ starting slirp, MTU=65520
     link/ether c2:28:0c:0e:29:06 brd ff:ff:ff:ff:ff:ff
     inet 10.0.2.100/24 brd 10.0.2.255 scope global tap0
        valid_lft forever preferred_lft forever
-    inet6 fe80::c028:cff:fe0e:2906/64 scope link 
+    inet6 fe80::c028:cff:fe0e:2906/64 scope link
        valid_lft forever preferred_lft forever
 (namespace)$ echo "nameserver 10.0.2.3" > /tmp/resolv.conf
 (namespace)$ mount --bind /tmp/resolv.conf /etc/resolv.conf
@@ -169,13 +169,13 @@ The latest revision of slirp4netns is regularly benchmarked (`make benchmark`) o
 Build dependencies (`apt-get`):
 
 ```console
-$ sudo apt-get install libglib2.0-dev libslirp-dev libcap-dev libseccomp-dev
+$ sudo apt-get install libglib2.0-dev libslirp-dev libcap-dev libseccomp-dev libssl-dev
 ```
 
 Build dependencies (`dnf`):
 
 ```console
-$ sudo dnf install glib2-devel libslirp-devel libcap-devel libseccomp-devel
+$ sudo dnf install glib2-devel libslirp-devel libcap-devel libseccomp-devel openssl-devel
 ```
 
 Installation steps:
@@ -187,7 +187,7 @@ $ make
 $ sudo make install
 ```
 
-* [libslirp](https://gitlab.freedesktop.org/slirp/libslirp) needs to be v4.1.0 or later.
+* [libslirp](https://gitlab.freedesktop.org/slirp/libslirp) needs to be v4.1.0 or later. Using v4.5.0 or later is recommended.
 * To build `slirp4netns` as a static binary, run `./configure` with `LDFLAGS=-static`.
 * If you set `--prefix` to `$HOME`, you don't need to run `make install` with `sudo`.
 

Vagrantfile

@@ -20,8 +20,8 @@ Vagrant.configure("2") do |config|
       yum install -y \
         autoconf automake make gcc gperf libtool \
         git-core meson ninja-build \
-        glib2-devel libcap-devel \
-        git-core libtool iproute iputils iperf3 nmap jq
+        glib2-devel libcap-devel openssl-devel \
+        git-core libtool iproute iputils iperf3 nmap jq socat
 
       # TODO: install udhcpc (required by test-slirp4netns-dhcp.sh)