nexus: Rollup update for nexus

nexus: Change field separator from : to ' '

Signed-off-by: San Mehat <san@google.com>

nexus: Add some prototypes for stuff to come

Signed-off-by: San Mehat <san@google.com>

nexus: Add some TODOs

Signed-off-by: San Mehat <san@google.com>

libsysutils: Put a proper token parser into the FrameworkListener which
supports minimal \ escapes and quotes

Signed-off-by: San Mehat <san@google.com>

nexus: Fix a lot of bugs

Signed-off-by: San Mehat <san@google.com>

libsysutils: Remove some debugging
Signed-off-by: San Mehat <san@google.com>

nexus: Send broadcasts for supplicant state changes

Signed-off-by: San Mehat <san@google.com>

nexus: Plumb DHCP listener state changes to NetworkManager

Signed-off-by: San Mehat <san@google.com>

nexus: Make the SupplicantState strings more parsable

Signed-off-by: San Mehat <san@google.com>

nexus: Broadcast a message when dhcp state changes.

Signed-off-by: San Mehat <san@google.com>

nexus: Add a few new response codes

Signed-off-by: San Mehat <san@google.com>

nexus: Rename ErrorCode -> ResponseCode

Signed-off-by: San Mehat <san@google.com>

nexus: Add DHCP event broadcasting. Also adds the framework for
tracking supplicant 'searching-for-AP' state

Signed-off-by: San Mehat <san@google.com>

nexus: REmove WifiScanner

Signed-off-by: San Mehat <san@google.com>

nexus: Change the way scanning works. scanmode can now be selected
independantly of triggering a scan. Also adds rxfilter support

Signed-off-by: San Mehat <san@google.com>

nexus: Add support for configuring bluetooth coexistence scanning and modes

Signed-off-by: San Mehat <san@google.com>

nexus: use case insensitive match for property names

Signed-off-by: San Mehat <san@google.com>

nexus: Rollup of a bunch of stuff:
    - 'list' command now takes an argument to match against
    - InterfaceConfig has been moved into the Controller base (for now)
    - DhcpClient now has some rudimentry locking
    - process 'ADDRINFO' messages from dhcpcd
    - Drop tertiary dns

Signed-off-by: San Mehat <san@google.com>

nexus: Clean up some of the supplicant variable parsing and add 'wifi.current'

Signed-off-by: San Mehat <san@google.com>

nexus: Add driver-stop/start, initial suspend support

Signed-off-by: San Mehat <san@google.com>

nexus: Add Controller suspend/resume callbacks, as well as locking

Signed-off-by: San Mehat <san@google.com>

nexus: Make ARP probing configurable for DhcpClient

Signed-off-by: San Mehat <san@google.com>

nexus: Add linkspeed / rssi retrieval

Signed-off-by: San Mehat <san@google.com>

nexus: Add WifiStatusPoller to track RSSI/linkspeed when associated

Signed-off-by: San Mehat <san@google.com>

nexus: Disable some debugging and add 'wifi.netcount' property

Signed-off-by: San Mehat <san@google.com>

nexus: Replace the hackish property system with something more flexible with namespaces

Signed-off-by: San Mehat <san@google.com>

libsysutils: Fix a few bugs in SocketListener

Signed-off-by: San Mehat <san@google.com>

nexus: PropertyManager: Add array support

Signed-off-by: San Mehat <san@google.com>

nexus: Clean up properties
Signed-off-by: San Mehat <san@google.com>

nexus: WifiController: Change name of 'CurrentNetwork' property

Signed-off-by: San Mehat <san@google.com>
diff --git a/nexus/NetworkManager.cpp b/nexus/NetworkManager.cpp
index 7450b95..e0df409 100644
--- a/nexus/NetworkManager.cpp
+++ b/nexus/NetworkManager.cpp
@@ -24,6 +24,9 @@
 #include "NetworkManager.h"
 #include "InterfaceConfig.h"
 #include "DhcpClient.h"
+#include "DhcpState.h"
+#include "DhcpEvent.h"
+#include "ResponseCode.h"
 
 NetworkManager *NetworkManager::sInstance = NULL;
 
@@ -35,8 +38,9 @@
 
 NetworkManager::NetworkManager(PropertyManager *propMngr) {
     mBroadcaster = NULL;
-    mControllers = new ControllerCollection();
+    mControllerBindings = new ControllerBindingCollection();
     mPropMngr = propMngr;
+    mLastDhcpState = DhcpState::INIT;
     mDhcp = new DhcpClient(this);
 }
 
@@ -51,17 +55,17 @@
 }
 
 int NetworkManager::attachController(Controller *c) {
-    mControllers->push_back(c);
+    ControllerBinding *cb = new ControllerBinding(c);
+    mControllerBindings->push_back(cb);
     return 0;
 }
 
 int NetworkManager::startControllers() {
     int rc = 0;
-    ControllerCollection::iterator i;
+    ControllerBindingCollection::iterator it;
 
-    for (i = mControllers->begin(); i != mControllers->end(); ++i) {
-        int irc = (*i)->start();
-        LOGD("Controller '%s' start rc = %d", (*i)->getName(), irc);
+    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
+        int irc = (*it)->getController()->start();
         if (irc && !rc)
             rc = irc;
     }
@@ -70,52 +74,132 @@
 
 int NetworkManager::stopControllers() {
     int rc = 0;
-    ControllerCollection::iterator i;
+    ControllerBindingCollection::iterator it;
 
-    for (i = mControllers->begin(); i != mControllers->end(); ++i) {
-        int irc = (*i)->stop();
-        LOGD("Controller '%s' stop rc = %d", (*i)->getName(), irc);
+    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
+        int irc = (*it)->getController()->stop();
         if (irc && !rc)
             rc = irc;
     }
     return rc;
 }
 
-Controller *NetworkManager::findController(const char *name) {
-    ControllerCollection::iterator i;
-    for (i = mControllers->begin(); i != mControllers->end(); ++i) {
-        if (!strcmp((*i)->getName(), name))
-            return *i;
+NetworkManager::ControllerBinding *NetworkManager::lookupBinding(Controller *c) {
+    ControllerBindingCollection::iterator it;
+
+    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
+        if ((*it)->getController() == c)
+            return (*it);
     }
-    LOGW("Controller '%s' not found", name);
+    errno = ENOENT;
     return NULL;
 }
 
-void NetworkManager::onInterfaceConnected(Controller *c, const InterfaceConfig *cfg) {
+Controller *NetworkManager::findController(const char *name) {
+    ControllerBindingCollection::iterator it;
+
+    for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
+        if (!strcasecmp((*it)->getController()->getName(), name))
+            return (*it)->getController();
+    }
+    errno = ENOENT;
+    return NULL;
+}
+
+void NetworkManager::onInterfaceConnected(Controller *c) {
     LOGD("Controller %s interface %s connected", c->getName(), c->getBoundInterface());
 
-    // Look up the interface
-
-    if (0) { // already started?
-    }
-
-    if (cfg) {
-        if (cfg->getUseDhcp() && mDhcp->start(c->getBoundInterface())) {
-            LOGE("DHCP start failed");
-        } else if (!cfg->getUseDhcp()) {
-            // Static configuration
-        }
-    } else {
-        LOGD("No InterfaceConfig for %s:%s - assuming self-managed",
-            c->getName(), c->getBoundInterface());
+    if (mDhcp->start(c)) {
+        LOGE("Failed to start DHCP (%s)", strerror(errno));
+        return;
     }
 }
 
-void NetworkManager::onInterfaceDisconnected(Controller *c, const char *name) {
-    LOGD("Controller %s interface %s disconnected", c->getName(), name);
+void NetworkManager::onInterfaceDisconnected(Controller *c) {
+    LOGD("Controller %s interface %s disconnected", c->getName(),
+         c->getBoundInterface());
 
-    // If we have a DHCP request out on this interface then stop it
-    if (1) {
-        mDhcp->stop();
-    }
+    mDhcp->stop();
 }
+
+void NetworkManager::onControllerSuspending(Controller *c) {
+    LOGD("Controller %s interface %s suspending", c->getName(),
+         c->getBoundInterface());
+    mDhcp->stop();
+}
+
+void NetworkManager::onControllerResumed(Controller *c) {
+    LOGD("Controller %s interface %s resumed", c->getName(),
+         c->getBoundInterface());
+}
+
+void NetworkManager::onDhcpStateChanged(Controller *c, int state) {
+    char tmp[255];
+    char tmp2[255];
+
+    LOGD("onDhcpStateChanged(%s -> %s)",
+         DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)),
+         DhcpState::toString(state, tmp2, sizeof(tmp2)));
+
+    switch(state) {
+        case DhcpState::BOUND:
+            // Refresh the 'net.xxx' for the controller
+            break;
+        case DhcpState::RENEWING:
+            break;
+        default:
+            break;
+    }
+
+    char *tmp3;
+    asprintf(&tmp3,
+             "DHCP state changed from %d (%s) -> %d (%s)", 
+             mLastDhcpState,
+             DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)),
+             state,
+             DhcpState::toString(state, tmp2, sizeof(tmp2)));
+
+    getBroadcaster()->sendBroadcast(ResponseCode::DhcpStateChange,
+                                    tmp3,
+                                    false);
+    free(tmp3);
+                          
+    mLastDhcpState = state;
+}
+
+void NetworkManager::onDhcpEvent(Controller *c, int evt) {
+    char tmp[64];
+    LOGD("onDhcpEvent(%s)", DhcpEvent::toString(evt, tmp, sizeof(tmp)));
+}
+
+void NetworkManager::onDhcpLeaseUpdated(Controller *c, struct in_addr *addr,
+                                        struct in_addr *net,
+                                        struct in_addr *brd,
+                                        struct in_addr *gw,
+                                        struct in_addr *dns1,
+                                        struct in_addr *dns2) {
+    ControllerBinding *bind = lookupBinding(c);
+
+    if (!bind->getCurrentCfg())
+        bind->setCurrentCfg(new InterfaceConfig(true));
+
+    bind->getCurrentCfg()->setIp(addr);
+    bind->getCurrentCfg()->setNetmask(net);
+    bind->getCurrentCfg()->setGateway(gw);
+    bind->getCurrentCfg()->setBroadcast(brd);
+    bind->getCurrentCfg()->setDns(0, dns1);
+    bind->getCurrentCfg()->setDns(1, dns2);
+}
+
+NetworkManager::ControllerBinding::ControllerBinding(Controller *c) :
+                mController(c) {
+}
+
+void NetworkManager::ControllerBinding::setCurrentCfg(InterfaceConfig *c) {
+    mCurrentCfg = c;
+}
+
+void NetworkManager::ControllerBinding::setBoundCfg(InterfaceConfig *c) {
+    mBoundCfg = c;
+}
+