freifunkmanager/runtime/node_ssh.go

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package runtime
import (
"fmt"
"strings"
log "github.com/sirupsen/logrus"
"github.com/FreifunkBremen/freifunkmanager/ssh"
)
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func (n *Node) SSHUpdate(sshmgmt *ssh.Manager, oldnode *Node) {
client, err := sshmgmt.ConnectTo(n.GetAddress())
if err != nil {
return
}
defer client.Close()
if oldnode == nil || n.Hostname != oldnode.Hostname {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
uci set system.@system[0].hostname='%s';
uci commit; echo $(uci get system.@system[0].hostname) > /proc/sys/kernel/hostname;`,
n.Hostname))
}
if oldnode == nil || n.Owner != oldnode.Owner {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
uci set gluon-node-info.@owner[0].contact='%s';
uci commit gluon-node-info;`,
n.Owner))
}
if oldnode == nil || !locationEqual(n.Location, oldnode.Location) {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
uci set gluon-node-info.@location[0].latitude='%f';
uci set gluon-node-info.@location[0].longitude='%f';
uci set gluon-node-info.@location[0].share_location=1;
uci commit gluon-node-info;`,
n.Location.Latitude, n.Location.Longitude))
}
runWifi := false
defer func() {
if runWifi {
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ssh.Execute(n.Address, client, "wifi")
// send warning for running wifi, because it kicks clients from node
log.Warn("[cmd] wifi ", n.NodeID)
}
}()
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result, err := ssh.Run(n.Address, client, `
if [ "$(uci get wireless.radio0.hwmode | grep -c g)" -ne 0 ]; then
echo "radio0";
elif [ "$(uci get wireless.radio1.hwmode | grep -c g)" -ne 0 ]; then
echo "radio1";
fi;`)
if err != nil {
return
}
radio := ssh.SSHResultToString(result)
ch := GetChannel(n.Wireless.Channel24)
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if radio != "" && ch != nil {
if oldnode == nil || n.Wireless.TxPower24 != oldnode.Wireless.TxPower24 {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
uci set wireless.%s.txpower='%d';
uci commit wireless;`,
radio, n.Wireless.TxPower24))
runWifi = true
}
if oldnode == nil || n.Wireless.Channel24 != oldnode.Wireless.Channel24 {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
ubus call hostapd.%s switch_chan '{"freq":%d}'
uci set wireless.%s.channel='%d';
uci commit wireless;`,
strings.Replace(radio, "radio", "client", 1), ch.Frequenz,
radio, n.Wireless.Channel24))
}
}
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result, err = ssh.Run(n.Address, client, `
if [ "$(uci get wireless.radio0.hwmode | grep -c a)" -ne 0 ]; then
echo "radio0";
elif [ "$(uci get wireless.radio1.hwmode | grep -c a)" -ne 0 ]; then
echo "radio1";
fi;`)
if err != nil {
return
}
radio = ssh.SSHResultToString(result)
ch = GetChannel(n.Wireless.Channel5)
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if radio != "" && ch != nil {
if oldnode == nil || n.Wireless.TxPower5 != oldnode.Wireless.TxPower5 {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
uci set wireless.%s.txpower='%d';
uci commit wireless;`,
radio, n.Wireless.TxPower5))
runWifi = true
}
if oldnode == nil || n.Wireless.Channel5 != oldnode.Wireless.Channel5 {
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ssh.Execute(n.Address, client, fmt.Sprintf(`
ubus call hostapd.%s switch_chan '{"freq":%d}'
uci set wireless.%s.channel='%d';
uci commit wireless;`,
strings.Replace(radio, "radio", "client", 1), ch.Frequenz,
radio, n.Wireless.Channel5))
}
}
oldnode = n
}