MathiasJeschkeRestricted

Wifi Benchmark

• ath <--> ath0 ~ 1 MByte/s
• ath <--> prism2 ~ ?? MByte/s
• ath <--> prism2/ath <--> ath ~ ?? MByte/s (2 Channels)

Get versions from neighbour beacons

$ click-align /mnt/mj/brn/dump_sdp.click | /tmp/clickrun/click

Get versions via telnet (Ethernet conn. required)

#!/bin/sh

ADD_HOSTS="mn11"

exec 2>&-
if [ -z $1 ]
then
    for i in $(seq 21 55)
    do
        HOSTS="$HOSTS wgt$i"
    done
    HOSTS="$HOSTS $ADD_HOSTS"
else
    HOSTS="$1"
fi

for i in $HOSTS
do
  echo -n "$i "
  echo -n "read sdp/sdp.meta" | netcat -w 1 $i 7777 | sed -n 4p | sed 's/.*\(version="[0-9]*"\).*\(start_time="[0-9]*"\).*/\1 \2/' |tr '\012' ' '
  echo
done

Kernel-Click

• Checkout latest click

svn co svn://merkur.sardmn.informatik.hu-berlin.de/brn/archives/click-20051012/

• Checkout BRN sources

cd  click-20051012
cd elements
svn co svn://merkur.sardmn.informatik.hu-berlin.de/brn/platform/wgt634u/brn/src brn
cd ..
sh conf_geode.sh
cd linuxmodule
vi build.sh
sh build.sh 

Minimal Kernel-Click-Config for SDP

FromDevice(wlan0) //, PROMISC true
  -> Prism2Decap()
  -> ExtraDecap()
  -> FilterPhyErr()
  -> filter :: FilterTX();

filter[0]
  -> WifiDupeFilter()
  -> mgm_clf :: Classifier(0/00%0f, -); // management frames

mgm_clf[0] //handle mgmt frames
  -> Discard;

mgm_clf[1] //handle other frames (data)
  -> WifiDecap()
  -> Classifier(12/8086)
  -> EtherDecap()
  -> brnclf :: Classifier(0/01, //BrnSDP
                          0/02, //BrnTFTP
                          -        //other
                          );

brnclf[0] // sdp
-> to_user_click::Null;

brnclf[1] // tftp
-> to_user_click;

to_user_click
        -> PushMACHeader()
        -> Print(to_user_click)
        -> WifiEncap(0x00, 0:0:0:0:0:0)
        -> ToHostSniffers(wlan0);

brnclf[2] //dsr
  -> Discard;

Symbol problem with i586

• elements/brn/brnlinktable.hh
  • Vector<EtherAddress> last_route;

Telnet/IP access

• svn://brn-svn/BerlinRoofNet/trunk/click/configurations/main/brn.kclick

Files for Geode Nodes

• /brn/sdp/library/0
• /brn/sdp/current -> library/0
• /brn/sdp/current_id (contains 0)
• /brn/start.sh
• /brn/ath_hal.ko
• /brn/ath_pci.ko
• /brn/click-align
• /usr/sbin/click-align -> /brn/click-align
• /etc/rc2.d/S99brnstart -> /brn/start.sh
• /var/updatelink -> /tmp/sdp
• /usr/sbin/rcclick -> /var/updatelink/current/activate
• /var/update/fallback-stage1
• /usr/sbin/click-align -> /brn/click-align

echo 'savedefault --default=1 --once' | grub --batch

Links

Multiplatform-SDP

brn-hu-wlan1.dyndns.org -> 141.20.192.200

ifconfig eth1 up
wl scan
wl scnaresults
wl join <essid> [key xxxxxxxxxx]

VMware Server for OSP

• VM duplizieren
  • vmx-Files anpassen (MAC-Adressen)
  • VMs in Server eintragen (/etc/vmware/vm-list)
  • auf private setzen (/etc/vmware/vm-list-private)
  • Was ist mit den UUID der VMs?
  • Nutzer und Passwörter generieren und setzen (home: /vmware/home/osp01..osp12)

  • ssh sarprk -p 22xx -l root

• VM TODO
  • Zeit-Problem lösen / NTP einrichten
  • Software

MRTG

$ yast -i mrtg

click-core für linux-2.6.16.13

Index: linuxmodule/proclikefs.c
===================================================================
--- linuxmodule/proclikefs.c    (Revision 2589)
+++ linuxmodule/proclikefs.c    (Arbeitskopie)
@@ -222,8 +222,15 @@
     struct list_head *p;

     DEBUG("killing files");
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 4, 0)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 16)
     file_list_lock();
+    list_for_each(p, &sb->s_files) {
+    struct file *filp = list_entry(p, struct file, f_u.fu_list);
+    filp->f_op = dummy;
+    }
+    file_list_unlock();
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 4, 0)
+    file_list_lock();
     for (p = sb->s_files.next; p != &sb->s_files; p = p->next) {
        struct file *filp = list_entry(p, struct file, f_list);
        filp->f_op = dummy;
@@ -259,7 +266,11 @@
        /* Prepend children to dentry_tree */
        next = active->d_subdirs.next;
        while (next != &active->d_subdirs) {
-           struct dentry *child = list_entry(next, struct dentry, d_child);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 16)
+        struct dentry *child = list_entry(next, struct dentry, d_u.d_child);
+#else
+        struct dentry *child = list_entry(next, struct dentry, d_child);
+#endif
            next = next->next;
            d_drop(child);
            child->d_fsdata = (void *)dentry_tree;
Index: linuxmodule/skbmgr.cc
===================================================================
--- linuxmodule/skbmgr.cc       (Revision 2589)
+++ linuxmodule/skbmgr.cc       (Arbeitskopie)
@@ -257,7 +257,9 @@
     skb->pkt_bridged = 0;
 #endif
     skb->prev = NULL;
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 15)
     skb->list = NULL;
+#endif
     skb->sk = NULL;
 #if HAVE_LINUX_SKBUFF_SECURITY
     skb->security = 0;
Index: include/click/packet.hh
===================================================================
--- include/click/packet.hh     (Revision 2589)
+++ include/click/packet.hh     (Arbeitskopie)
@@ -197,9 +197,27 @@


 #ifdef CLICK_LINUXMODULE
-  const Timestamp &timestamp_anno() const { return *(const Timestamp*) &skb()->stamp; }
-  Timestamp &timestamp_anno()          { return *(Timestamp*) &skb()->stamp; }
-  void set_timestamp_anno(const Timestamp &tv) { memcpy(&skb()->stamp, &tv, 8); }
+  const Timestamp &timestamp_anno() const {
+    # if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 13)
+      return *(const Timestamp *) &skb()->stamp;
+    # else
+      return *(const Timestamp *) &skb()->tstamp;
+    # endif
+  }
+  Timestamp &timestamp_anno()          {
+    # if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 13)
+      return *(Timestamp *) &skb()->stamp;
+    # else
+      return *(Timestamp *) &skb()->tstamp;
+    # endif
+  }
+  void set_timestamp_anno(const Timestamp &tv) {
+    # if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 13)
+         memcpy(&skb()->stamp, &tv, 8);
+    # else
+         memcpy(&skb()->tstamp, &tv, 8);
+    # endif
+  }
   net_device *device_anno() const      { return skb()->dev; }
   void set_device_anno(net_device *dev)        { skb()->dev = dev; }
   PacketType packet_type_anno() const  { return (PacketType)(skb()->pkt_type & PACKET_TYPE_MASK); }
@@ -440,7 +458,9 @@
 {
   struct sk_buff *b = skb();
   b->next = b->prev = 0;
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 15)
   b->list = 0;
+#endif
   skbmgr_recycle_skbs(b);
 }
 #endif
Index: conf_mips.sh
===================================================================
--- conf_mips.sh        (Revision 2589)
+++ conf_mips.sh        (Arbeitskopie)
@@ -1,3 +1,4 @@
 #! /bin/sh

-./configure --host=mipsel-linux --build=i686-pc-linux-gnu --with-linux=`pwd`/../../platform/wgt634u/linux-kernel-2.6.12-rc3/  --enable-tools=host CFLAGS="-mlong-calls -g -O2"
+./configure --host=mipsel-linux --build=i686-pc-linux-gnu --with-linux=/tmp/WGT634U-Linux-2.6.16.13/linux-2.6.16.13-mips-click/ --enable-tools=host CFLAGS="-mlong-calls -g -O2"
+#./configure --host=mipsel-linux --build=i686-pc-linux-gnu --with-linux=/tmp/WGT634U-Linux-2.6.16.13/linux-2.6.16.13-mips-click/ --enable-tools=host --disable-int64 CFLAGS="-mlong-calls -g -O2"
Index: elements/standard/script.cc
===================================================================
--- elements/standard/script.cc (Revision 2589)
+++ elements/standard/script.cc (Arbeitskopie)
@@ -597,7 +597,7 @@
            accum += (what == AR_ADD || first ? arg : -arg);
            first = false;
        }
-       str = String(accum);
+       str = String((unsigned long) accum);
        return 0;
     }

Index: elements/standard/counter.cc
===================================================================
--- elements/standard/counter.cc        (Revision 2589)
+++ elements/standard/counter.cc        (Arbeitskopie)
@@ -62,7 +62,7 @@
     if (!PARSECMD(cp_pop_spacevec(count_call), &_count_trigger))
       return errh->error("'COUNT_CALL' first word should be unsigned (count)");
     else if (cp_errno == CPE_OVERFLOW)
-      errh->error("COUNT_CALL too large; max %s", String(_count_trigger).c_str());
+      errh->error("COUNT_CALL too large; max %s", String((unsigned long) _count_trigger).c_str());
     _count_trigger_h = new HandlerCall(count_call);
   } else
     _count_trigger = (counter_t)(-1);
@@ -71,7 +71,7 @@
     if (!PARSECMD(cp_pop_spacevec(byte_count_call), &_byte_trigger))
       return errh->error("'BYTE_COUNT_CALL' first word should be unsigned (count)");
     else if (cp_errno == CPE_OVERFLOW)
-      errh->error("BYTE_COUNT_CALL too large; max %s", String(_count_trigger).c_str());
+      errh->error("BYTE_COUNT_CALL too large; max %s", String((unsigned long) _count_trigger).c_str());
     _byte_trigger_h = new HandlerCall(byte_count_call);
   } else
     _byte_trigger = (counter_t)(-1);

Nightly Build

$ svn co svn://repos.majes.de:8690/studienarbeit/nightly-build

BRN -at- Stanford

Nodes:

Revisions:

• Kernel: 2700 (svn://brn-svn.sar.informatik.hu-berlin.de/BerlinRoofNet/trunk/platform/wgt634u/linux-2.6.16.13-mips-click)
• click: build: Sep 20 2006 17:53:58 by jmueller@brn-suse093-4, $Rev: 2831 $ (svn://brn-svn.sar.informatik.hu-berlin.de/BerlinRoofNet/trunk/click/click-core)
• click-config: 2827 (svn://brn-svn/BerlinRoofNet/trunk/click/configurations/main) -- differences between r2827 and shipped firmware: http://openwgt.informatik.hu-berlin.de/brn/diff-to-r2827.diff

Troubleshooting

• Routing geht nicht?
• NVRAM-Einstellungen auf default oder falsch