Add tcpdump for Linux/ARM

tcpdump/arm/Dockerfile

@@ -0,0 +1,8 @@
+FROM andrewd/musl-cross-arm
+MAINTAINER Andrew Dunham <andrew@du.nham.ca>
+
+# Add our build script
+ADD . /build/
+
+# This builds the program and copies it to /output
+CMD /build/build.sh

tcpdump/arm/build.sh

@@ -0,0 +1,94 @@
+#!/bin/bash
+
+set -e
+set -o pipefail
+set -x
+
+
+LIBPCAP_VERSION=1.7.3
+TCPDUMP_VERSION=4.7.4
+
+
+# Set up path
+export PATH=$PATH:/opt/cross/arm-linux-musleabihf/bin/
+
+
+function build_libnl_tiny() {
+    cd /build
+
+    # Download
+    git clone https://github.com/sabotage-linux/libnl-tiny.git
+    cd libnl-tiny
+
+    # Build
+    make ALL_LIBS=libnl-tiny.a \
+         CC='/opt/cross/arm-linux-musleabihf/bin/arm-linux-musleabihf-gcc -frandom-seed=build-libnl-tiny-arm' \
+         CFLAGS=-static all
+}
+
+
+function build_libpcap() {
+    cd /build
+
+    # Install dependencies
+    DEBIAN_FRONTEND=noninteractive apt-get update
+    DEBIAN_FRONTEND=noninteractive apt-get install -yy bison flex
+
+    # Download
+    curl -LO http://www.tcpdump.org/release/libpcap-${LIBPCAP_VERSION}.tar.gz
+    tar xzvf libpcap-${LIBPCAP_VERSION}.tar.gz
+    cd libpcap-${LIBPCAP_VERSION}
+
+    # Build
+    CC='arm-linux-musleabihf-gcc -static -frandom-seed=build-libpcap-arm' \
+        CFLAGS='-D_GNU_SOURCE -D_BSD_SOURCE -DIPPROTO_HOPOPTS=0 -I/build/libnl-tiny' \
+        ./configure \
+        --disable-canusb \
+        --host=$(arm-linux-musleabihf-gcc -dumpmachine|sed 's/musl/gnu/') \
+        --with-pcap=linux
+        ac_cv_type_u_int64_t=yes \
+    make
+}
+
+
+function build_tcpdump() {
+    cd /build
+
+    # Download
+    curl -LO http://www.tcpdump.org/release/tcpdump-4.7.4.tar.gz
+    tar xzvf tcpdump-${TCPDUMP_VERSION}.tar.gz
+    cd tcpdump-${TCPDUMP_VERSION}
+
+    # Build
+    CC='arm-linux-musleabihf-gcc -static -frandom-seed=build-tcpdump-arm' \
+        CPPFLAGS='-D_GNU_SOURCE -D_BSD_SOURCE' \
+        LDFLAGS="-static -L/build/libnl-tiny -L/build/libpcap-${LIBPCAP_VERSION}" \
+        LIBS='-lpcap -lnl-tiny' \
+        ./configure \
+        --without-crypto \
+        --host=$(arm-linux-musleabihf-gcc -dumpmachine | sed 's/musl/gnu/') \
+        ac_cv_linux_vers=3
+
+    make
+    arm-linux-musleabihf-strip tcpdump
+}
+
+function doit() {
+    build_libnl_tiny
+    build_libpcap
+    build_tcpdump
+
+    # Copy to output
+    if [ -d /output ]
+    then
+        OUT_DIR=/output/`uname | tr 'A-Z' 'a-z'`/arm
+        mkdir -p $OUT_DIR
+        cp /build/tcpdump-${TCPDUMP_VERSION}/tcpdump $OUT_DIR/
+        echo "** Finished **"
+    else
+        echo "** /output does not exist **"
+    fi
+}
+
+doit
+