Kernel/VTerm - "Fix" wrapping issue in VTerm (why was old behavior there?)

[tpg/acess2.git] / Usermode / Applications / dhcpclient_src / main.c

diff --git a/Usermode/Applications/dhcpclient_src/main.c b/Usermode/Applications/dhcpclient_src/main.c
index affe1fd..d6f4cda 100644 (file)
--- a/Usermode/Applications/dhcpclient_src/main.c
+++ b/Usermode/Applications/dhcpclient_src/main.c
@@ -77,7 +77,8 @@ typedef struct sInterface
 
        uint32_t        TransactionID;
        char    HWAddr[6];
-       
+
+       int64_t StartTime;      
        int64_t Timeout;
         int    nTimeouts;
 } tInterface;
@@ -118,6 +119,7 @@ int main(int argc, char *argv[])
                        return -1;
                }
                i->State = STATE_PREINIT;
+               i->StartTime = _SysTimestamp();
                
                // Send request
                Send_DHCPDISCOVER(i);
@@ -299,6 +301,7 @@ void Send_DHCPDISCOVER(tInterface *Iface)
        msg->siaddr = htonl(0); // siaddr - Zero? maybe -1
        msg->giaddr = htonl(0); // giaddr - Zero?
        memcpy(msg->chaddr, Iface->HWAddr, 6);
+       memset(msg->chaddr+6, 0, sizeof(msg->chaddr)-6);
 
        memset(msg->sname, 0, sizeof(msg->sname));      // Nuke the rest
        memset(msg->file, 0, sizeof(msg->file));        // Nuke the rest
@@ -330,14 +333,19 @@ void Send_DHCPREQUEST(tInterface *Iface, void *OfferPacket, int TypeOffset)
         int    i;
        msg = (void*) ((char*)OfferPacket) + 8;
 
+       if( msg->xid != htonl(Iface->TransactionID) ) {
+               _SysDebug("DHCPREQUEST: Transaction ID mismatch");
+               return ;
+       }
+
        // Reuses old data :)
-       msg->op    = 1;
-       msg->htype = 1;
-       msg->hlen  = 6;
-       msg->hops  = 0;
-       msg->xid   = msg->xid;
-       msg->secs  = htons(0);  // TODO: Maintain times
-       msg->flags = htons(0);
+       msg->op    = htonb(1);
+       msg->htype = htonb(1);
+       msg->hlen  = htonb(6);
+       msg->hops  = htonb(0);
+       msg->xid   = htonl(Iface->TransactionID);
+       msg->secs  = htons( (_SysTimestamp()-Iface->StartTime+499)/1000 );      // TODO: Maintain times
+       msg->flags = htons(0x0000);
        memcpy(msg->chaddr, Iface->HWAddr, 6);
        memset(msg->sname, 0, sizeof(msg->sname));      // Nuke the rest
        memset(msg->file, 0, sizeof(msg->file));        // Nuke the rest
@@ -380,7 +388,7 @@ int Handle_Packet(tInterface *Iface)
        void    *router = NULL;
        void    *subnet_mask = NULL;
        
-       _SysDebug("Doing read on %i", Iface->SocketFD);
+       _SysDebug("Doing read on %s %i", Iface->Adapter, Iface->SocketFD);
        len = _SysRead(Iface->SocketFD, data, sizeof(data));
        _SysDebug("len = %i", len);
 
@@ -472,11 +480,15 @@ int Handle_Timeout(tInterface *Iface)
        switch(Iface->State)
        {
        case STATE_DISCOVER_SENT:
+               fprintf(stderr, "DHCPDISCOVER timeout on %s, trying again\n", Iface->Adapter);
                Send_DHCPDISCOVER(Iface);
                break;
+       case STATE_REQUEST_SENT:
+               fprintf(stderr, "DHCPREQUEST timeout on %s\n", Iface->Adapter);
+               return 1;
        default:
-               _SysDebug("Timeout with state = %i", Iface->State);
-               break;
+               _SysDebug("Timeout with state = %i (%s)", Iface->State, Iface->Adapter);
+               return 1;
        }
        return 0;
 }
@@ -494,7 +506,9 @@ void Update_State(tInterface *Iface, int newState)
                // TODO: Exponential backoff
                Iface->Timeout = _SysTimestamp() + 3000;
                Iface->nTimeouts ++;
-               _SysDebug("State %i repeated, timeout is 3000ms now", newState);
+               _SysDebug("%s: State %i repeated, timeout is 3000ms now",
+                       Iface->Adapter,
+                       newState);
        }
 }