The beginnings of automatic configuration of network devices using DHCP; this is

currently only triggered when there is no configuration file - it can't be configured this way yet. All DHCP currently does is to send a UDP broadcast DHCP discover message. More to come. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@19437 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-12-06 19:00:00 +00:00
parent 26cbcedb9c
commit fb81684f81
7 changed files with 658 additions and 21 deletions
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2006, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Axel Dörfler, [email protected]
+ */
+
+
+#include "AutoconfigLooper.h"
+#include "DHCPClient.h"
+#include "NetServer.h"
+
+#include <errno.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+
+
+static const uint32 kMsgReadyToRun = 'rdyr';
+
+
+AutoconfigLooper::AutoconfigLooper(BMessenger target, const char* device)
+	: BLooper(device),
+	fTarget(target),
+	fDevice(device)
+{
+	BMessage ready(kMsgReadyToRun);
+	PostMessage(&ready);
+}
+
+
+AutoconfigLooper::~AutoconfigLooper()
+{
+}
+
+
+void
+AutoconfigLooper::_ReadyToRun()
+{
+	// start with DHCP
+
+	DHCPClient* client = new DHCPClient(fDevice.String());
+	if (client->InitCheck() == B_OK) {
+		AddHandler(client);
+		return;
+	}
+puts("DHCP failed miserably!");
+
+	// DHCP obviously didn't work out, take some default values for now
+	// TODO: have a look at zeroconf
+	// TODO: this could also be done add-on based
+
+	BMessage interface;
+	interface.AddString("device", fDevice.String());
+
+	uint8 mac[6];
+	uint8 last = 56;
+	if (get_mac_address(fDevice.String(), mac) == B_OK) {
+		// choose IP address depending on the MAC address, if available
+		last = mac[0] ^ mac[1] ^ mac[2] ^ mac[3] ^ mac[4] ^ mac[5];
+		if (last > 253)
+			last = 253;
+		else if (last == 0)
+			last = 1;
+	}
+
+	char string[64];
+	snprintf(string, sizeof(string), "192.168.0.%u", last);
+
+	BMessage address;
+	address.AddString("family", "inet");
+	address.AddString("address", string);
+	address.AddString("gateway", "192.168.0.254");
+	interface.AddMessage("address", &address);
+
+	fTarget.SendMessage(kMsgConfigureInterface, &interface);
+}
+
+
+void
+AutoconfigLooper::MessageReceived(BMessage* message)
+{
+	switch (message->what) {
+		case kMsgReadyToRun:
+			_ReadyToRun();
+			break;
+
+		default:
+			BLooper::MessageReceived(message);
+			break;
+	}
+}
+