From patchwork Sat Oct 14 17:19:55 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [SQUASHED,v17,4/8] Add fff-hoods From: Tim Niemeyer X-Patchwork-Id: 574 Message-Id: <20171014171959.25099-5-tim@tn-x.org> To: franken-dev@freifunk.net Cc: Jan Kraus , Adrian Schmutzler Date: Sat, 14 Oct 2017 19:19:55 +0200 From: Christian Dresel This package connects to keyxchangev2 Signed-off-by: Christian Dresel Signed-off-by: Jan Kraus Signed-off-by: Adrian Schmutzler Signed-off-by: Tim Niemeyer --- Changes in v17: - Fix resetting interfaces during connection drop - Remove exit before vpn-select - Use function for conditional wifiAddPhy Changes in v16: - Open configap for both 2.4 and 5 GHz Changes in v15: - Fixed 5 GHz channel - Only start vpn-select if router has internet - Put ping into function since it is used twice - Check for started in micrond to prevent race condition - Moved copy of keyxchangev2data to the end Changes in v14: - Tested, working Inet+mesh: - Fixed stderr redirect - Added call of configurehood to rc.local, so it is triggered if wan does not come up. To prevent race condition, hotplug.d is removed. - Added wifi call to configAP setup - Remove hiddenap flag after successful setup - Added -q to uci calls - Added network interface configSta - Substitute timestamp to enable SHA comparison - Removed started-check from vpn-select Changes in v13: None Changes in v12: - Removed obsolete hostname Changes in v11: - Changed isGatewayAvailable to return integers (bool is not valid) and removed brackets for evaluations - Added variables for channels as they are used twice - Fixed $radio not set at the beginning (WORKAROUND!) - Changed OpenWRT to LEDE - Correctly reset json_select before reuse - Some tidying-up of comments and quotes - Fixed vpn loop so it works for more than one host (TESTED) - Fixed "else" if no file received Changes in v10: - Minor code fixes - Added fff-hoods to fff-base Makefile - Removed trailing whitespaces and harmonized tabs - Fixed some comments spelling - Added mac for hostname rewrite - Removed redundant check for /tmp/keyxchangev2data Changes in v9: - rebase onto 20170918-beta Changes in v8: - rebase onto 20170918-beta Changes in v7: None Changes in v6: - !!UNTESTED!! - fix hidden station v6 - fix -n to -f if - Add function to check for a gateway and use this - remove /etc/community.cfg and variables - send fewer infos to keyxchangev2 - add a check if /tmp/keyxchangev2 not downloadable and edit a bit on the wgets - change the position from json_load and do this only 1 times - !!UNTESTED!! - delete keyxchangev2data at start of the script - do only things with keyxchangev2data if available - change keyxchangev2 url Changes in v5: - clean tabstops - !!UNTESTED!! - change hidden AP ip to locallink - Open hidden AP after more checks - Load json File from Gateway if Gateway in Batman in Range Changes in v4: None Changes in v3: None Changes in v2: - clean tabstops - move the json vpn out of the if because we need this after reboot bsp/default/root_file_system/etc/rc.local | 4 + src/packages/fff/fff-hoods/Makefile | 39 ++++ .../fff/fff-hoods/files/usr/lib/micron.d/fff-hoods | 1 + .../fff/fff-hoods/files/usr/sbin/configurehood | 206 +++++++++++++++++++++ .../fff/fff-vpn-select/files/usr/sbin/vpn-select | 2 - .../fff-wireless/files/lib/functions/fff/wireless | 23 +++ src/packages/fff/fff/Makefile | 3 +- 7 files changed, 275 insertions(+), 3 deletions(-) create mode 100644 src/packages/fff/fff-hoods/Makefile create mode 100644 src/packages/fff/fff-hoods/files/usr/lib/micron.d/fff-hoods create mode 100755 src/packages/fff/fff-hoods/files/usr/sbin/configurehood diff --git a/bsp/default/root_file_system/etc/rc.local b/bsp/default/root_file_system/etc/rc.local index bd972fb..59042c3 100755 --- a/bsp/default/root_file_system/etc/rc.local +++ b/bsp/default/root_file_system/etc/rc.local @@ -4,6 +4,10 @@ /usr/sbin/configurenetwork +sleep 3 + +/usr/sbin/configurehood + touch /tmp/started exit 0 diff --git a/src/packages/fff/fff-hoods/Makefile b/src/packages/fff/fff-hoods/Makefile new file mode 100644 index 0000000..f85178d --- /dev/null +++ b/src/packages/fff/fff-hoods/Makefile @@ -0,0 +1,39 @@ +include $(TOPDIR)/rules.mk + +PKG_NAME:=fff-hoods +PKG_VERSION:=0.0.1 +PKG_RELEASE:=1 + +PKG_BUILD_DIR:=$(BUILD_DIR)/fff-hoods + +include $(INCLUDE_DIR)/package.mk + +define Package/fff-hoods + SECTION:=base + CATEGORY:=Freifunk + TITLE:= Freifunk-Franken hoods + URL:=http://www.freifunk-franken.de + DEPENDS:=+fff-network +endef + +define Package/fff-hoods/description + This package load and configures the current hood +endef + +define Build/Prepare + echo "all: " > $(PKG_BUILD_DIR)/Makefile +endef + +define Build/Configure + # nothing +endef + +define Build/Compile + # nothing +endef + +define Package/fff-hoods/install + $(CP) ./files/* $(1)/ +endef + +$(eval $(call BuildPackage,fff-hoods)) diff --git a/src/packages/fff/fff-hoods/files/usr/lib/micron.d/fff-hoods b/src/packages/fff/fff-hoods/files/usr/lib/micron.d/fff-hoods new file mode 100644 index 0000000..39e800e --- /dev/null +++ b/src/packages/fff/fff-hoods/files/usr/lib/micron.d/fff-hoods @@ -0,0 +1 @@ +*/5 * * * * [ -f /tmp/started ] && /usr/sbin/configurehood diff --git a/src/packages/fff/fff-hoods/files/usr/sbin/configurehood b/src/packages/fff/fff-hoods/files/usr/sbin/configurehood new file mode 100755 index 0000000..09c2069 --- /dev/null +++ b/src/packages/fff/fff-hoods/files/usr/sbin/configurehood @@ -0,0 +1,206 @@ +#!/bin/sh + +. /usr/share/libubox/jshn.sh +. /lib/functions/fff/wireless + +rm /tmp/keyxchangev2data + +# Gatewaycheck function +isGatewayAvailable() { + if [ "$(batctl gwl | wc -l)" -gt 2 ]; then + return 0 + else + return 1 + fi +} + +# Ping test +hasInternet() { + test_ipv4_host1="keyserver.freifunk-franken.de" # Freifunk-Franken keyserver + test_ipv4_host2="8.8.8.8" # Google DNS + test_ipv6_host1="heise.de" # heise Zeitschriftenverlag + if ping -w5 -c3 "$test_ipv4_host1" &>/dev/null || + ping -w5 -c3 "$test_ipv4_host2" &>/dev/null || + ping6 -w5 -c3 "$test_ipv6_host1" &>/dev/null ; then + return 0 + fi + return 1 +} + +chan2ghz="1" +chan5ghz="36" + +# Hidden AP check + +if [ -f /tmp/hiddenapflag ]; then + if isGatewayAvailable ; then + + uci set network.configap=interface + uci set network.configap.proto='static' + uci set network.configap.ip6addr='fe80::1/64' + uci commit network + + for radio in $(uci show wireless | sed -n 's,.*\.\([a-z0-9]*\)=wifi-device,\1,p'); do + if ! wifiAddAP "$radio" "config.franken.freifunk.net" "configap" "configap" "1"; then + echo "Can't add Config interface on $radio." + exit 1 + fi + done + + wifi + fi + rm /tmp/hiddenapflag +fi + +lat=$(uci -q get system.@system[0].latitude) +long=$(uci -q get system.@system[0].longitude) + +# if we have Internet, we download the Hoodfile from the keyxchangev2 +if hasInternet ; then + wget -T15 -t5 "http://keyserver.freifunk-franken.de/v2/?lat=$lat&long=$long" -O /tmp/keyxchangev2data + #if no Internet, we connect to the hidden AP and download the file from another Node in range +else + # connect to wireless hidden ap here and download the json File from the nearest router + # Only do that, when we have no gateway in range. If the Uplinkrouter changed the hood, we lost the GW and do this automatically again, I think! Nice idea? + if ! isGatewayAvailable ; then + #now we haven't a gateway in Range, we search for a hidden AP to get a keyxchangev2data file! + #first we delete all wifi settings + rm /www/public/keyxchangev2data # delete this, so interfaces are recreated if reconnect with unchanged hood file takes place + + if ! wifiDelAll; then + echo "Can't delete current wifi setup" + exit 1 + fi + #now we look for phy and add this + for phy in $(iw phy | awk '/^Wiphy/{ print $2 }'); do + radio="$(wifiAddPhyCond "$phy" "2" "$chan2ghz")" + radio5="$(wifiAddPhyCond "$phy" "5" "$chan5ghz")" + [ -n "$radio5" ] && radio="$radio5" + + #and here we add the station + if ! wifiAddSta "$radio" "config.franken.freifunk.net" "configSta"; then + echo "Can't add Sta interface on $radio." + exit 1 + else + uci -q set network.configSta=interface + uci -q set network.configSta.proto='static' + uci -q commit network + fi + done + + wifi + # wait a moment to start the interface + sleep 10; + # and here we can download the Hoodfile from the other node + wget -T15 -t5 "http://[fe80::1%w2sta]/keyxchangev2data" -O /tmp/keyxchangev2data + else + echo "We have a Gateway in Range, we load the keyxchangev2data from fe80::1" + wget -T15 -t5 "http://[fe80::1%br-mesh]/keyxchangev2data" -O /tmp/keyxchangev2data + fi +fi + +if [ -s /tmp/keyxchangev2data ]; then + + # we get a json file in this format: + # https://pw.freifunk-franken.de/patch/205/ + # but without signature, every hood file we get is valid! + + catnew="$(cat /tmp/keyxchangev2data | sed 's/"timestamp":[0-9]*/"timestamp":0/')" + catold="$(cat /www/public/keyxchangev2data 2>/dev/null | sed 's/"timestamp":[0-9]*/"timestamp":0/')" + sumnew=$(echo "$catnew" | sha256sum | cut -f1 -d " ") + sumold=$(echo "$catold" | sha256sum | cut -f1 -d " ") + + json_load "$(cat /tmp/keyxchangev2data)" + + if [ "$sumnew" != "$sumold" ]; then + echo "New file detect, we reconfigure the Node"; + + json_select hood + + json_get_var hood name + json_get_var mesh_bssid mesh_bssid + json_get_var mesh_essid mesh_essid + json_get_var essid essid + # i think the next things we don't active this in the first version! we can do it later + #json_get_var channel2 channel2 + #json_get_var mode2 mode2 + #json_get_var type2 type2 + #json_get_var channel5 channel5 + #json_get_var mode5 mode5 + #json_get_var type5 type5 + #json_get_var protocol protocol + + json_select ".." # back to root + + echo "Setting hood name: $hood" + uci set "system.@system[0].hood=$hood" + + if ! wifiDelAll; then + echo "Can't delete current wifi setup" + exit 1 + fi + + for phy in $(iw phy | awk '/^Wiphy/{ print $2 }'); do + radio="$(wifiAddPhyCond "$phy" "2" "$chan2ghz")" + radio5="$(wifiAddPhyCond "$phy" "5" "$chan5ghz")" + [ -n "$radio5" ] && radio="$radio5" + + if ! wifiAddAP "$radio" "$essid" "mesh" "ap" "0"; then + echo "Can't add AP interface on $radio." + exit 1 + fi + + # here we set a bit for add hidden AP + touch /tmp/hiddenapflag + + if ! wifiAddAdHocMesh "$radio" "$mesh_essid" "$mesh_bssid"; then + echo "Can't add AP interface on $radio." + exit 1 + fi + done + + echo "Loading wifi" + wifi + + # copy the file to webroot so that other Meshrouter can download it; + # copy only after all other steps so IF can be reentered if something goes wrong + cp /tmp/keyxchangev2data /www/public/ + + else + echo "We have no new file. We do nothing. We try it again in 5 minutes..."; + fi + + # and now we read the VPN Data and give this data to fff-vpn + json_select vpn + Index=1 + rm /tmp/fastd_fff_output + touch /tmp/fastd_fff_output + while json_select "$Index" > /dev/null + do + json_get_var protocol protocol + if [ "$protocol" == "fastd" ]; then + json_get_var servername name + echo "####${servername}.conf" >> /tmp/fastd_fff_output + echo "#name \"${servername}\";" >> /tmp/fastd_fff_output + json_get_var key key + echo "key \"${key}\";" >> /tmp/fastd_fff_output + json_get_var address address + json_get_var port port + echo "remote ipv4 \"${address}\" port $port float;" >> /tmp/fastd_fff_output + fi + echo "" >> /tmp/fastd_fff_output + json_select ".." # back to vpn + Index=$(( Index + 1 )) + done + echo "###" >> /tmp/fastd_fff_output + json_select ".." # back to root + #this we do every 5 minutes, because it can change the VPN Protocol + #and now we get to vpn-select Script and load VPNs + + if hasInternet ; then + sh /usr/sbin/vpn-select + fi +else + echo "We haven't got a file. We do nothing. We try it again in 5 minutes..."; + exit 0 +fi diff --git a/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select b/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select index bb4c933..bbc87cc 100755 --- a/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select +++ b/src/packages/fff/fff-vpn-select/files/usr/sbin/vpn-select @@ -1,7 +1,5 @@ #!/bin/sh -test -f /tmp/started || exit - make_config() { # remove old config >/etc/config/tunneldigger diff --git a/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless b/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless index 8ba9463..2c6dff8 100644 --- a/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless +++ b/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless @@ -50,6 +50,27 @@ wifiAddPhy() { return 0 } +wifiAddPhyCond() { + if [ $# -ne "3" ] + then + return 1 + fi + + local phy=$1 + local freq=$2 + local channel=$3 + + if iw phy "$phy" info | grep -q -m1 "${freq}... MHz"; then + radio="$(wifiAddPhy "$phy" "$channel")" + if [ -z "$radio" ]; then + return 1 + fi + fi + + echo "$radio" + return 0 # also returns success if outermost if is false +} + wifiAddAdHocMesh() { if [ $# -ne "3" ] then @@ -122,6 +143,7 @@ wifiAddAP() { __EOF__ echo "${iface}" + return 0 } wifiAddSta() { @@ -152,6 +174,7 @@ wifiAddSta() { __EOF__ echo "${iface}" + return 0 } # vim: set noexpandtab:tabstop=4 diff --git a/src/packages/fff/fff/Makefile b/src/packages/fff/fff/Makefile index 166d423..305ab8d 100644 --- a/src/packages/fff/fff/Makefile +++ b/src/packages/fff/fff/Makefile @@ -29,7 +29,8 @@ define Package/fff-base +fff-wireless \ +fff-timeserver \ +fff-vpn-select \ - +simple-tc + +simple-tc \ + +fff-hoods endef define Package/fff-base/description