Correcciones hechas en nuestra última experiencia traumática en el laboratorio.

[z.facultad/75.43/tp2.git] / makeroute

diff --git a/makeroute b/makeroute
index 1cd184ba71026d88326e54ce2a63d072da5d92b8..fd7b223de93d46489c90ded9b2baa29fe7d484ca 100755 (executable)
--- a/makeroute
+++ b/makeroute
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # vim: set et sw=4 sts=4 :
 
-import sys
+import sys, os
 
 def get_campos(line):
     r = []
@@ -20,12 +20,13 @@ def parse(f):
             hosts[host]['ifaces'] = []
             while line and line.strip() <> '"red"\t"ip"\t"mascara"\t"gateway"\t"interfaz"\t"metrica"':
                 if line.startswith('"'):
-                    (iface, ip, mascara, broadcast) = get_campos(line)[:4]
+                    (iface, ip, mascara, broadcast, peer) = get_campos(line)[:5]
                     hosts[host]['ifaces'].append({
                         'iface': iface,
                         'ip': ip,
                         'mascara': mascara,
                         'broadcast': broadcast,
+                        'peer': peer,
                     })
                 line = f.readline()
             line = f.readline()
@@ -46,24 +47,57 @@ def parse(f):
         line = f.readline()
     return hosts
 
-def up(host):
-    hosts = parse(sys.stdin)
+def up(host, fd):
+    hosts = parse(fd)
+    ppp = 0
     for iface in hosts[host]['ifaces']:
-        if not iface['iface'].startswith('ppp'):
-            print 'ifconfig %(iface)s %(ip)s broadcast %(broadcast)s netmask %(mascara)s' % iface
+        if iface['iface'].startswith('ppp'):
+            print 'UP: pppd -detach crtscts lock %(ip)s:%(peer)s /dev/ttyS0' % iface
+            os.system('pppd -detach crtscts lock %(ip)s:%(peer)s /dev/ttyS0 &' % iface)
+            ppp = 1
+        else:
+            print 'UP: ifconfig %(iface)s %(ip)s broadcast %(broadcast)s netmask %(mascara)s' % iface
+            os.system('ifconfig %(iface)s %(ip)s broadcast %(broadcast)s netmask %(mascara)s' % iface)
+    if ppp:
+       print 'while sleep 1; do if ping -c1 %(peer)s 2>&1 > /dev/null; then break; else echo Esperando link ppp...; fi; done' % iface
+       os.system('while sleep 1; do if ping -c1 %(peer)s 2>&1 > /dev/null; then break; else echo Esperando link ppp...; fi; done' % iface)
     for ruta in hosts[host]['rutas']:
         if ruta['metrica'] <> "0":
-            print 'route add -net %(ip)s gw %(gateway)s netmask %(mascara)s dev %(iface)s metric %(metrica)s' % ruta
+            print 'UP: route add -net %(ip)s gw %(gateway)s netmask %(mascara)s dev %(iface)s metric %(metrica)s' % ruta
+            os.system('route add -net %(ip)s gw %(gateway)s netmask %(mascara)s dev %(iface)s metric %(metrica)s' % ruta)
+    os.system('cp /etc/hosts /etc/hosts.13.bak')
+    os.system('cp hosts /etc/hosts')
+    os.system('cp /etc/networks /etc/networks.13.bak')
+    os.system('cp networks /etc/networks')
 
-def down(host):
-    hosts = parse(sys.stdin)
+def down(host, fd):
+    hosts = parse(fd)
     for iface in hosts[host]['ifaces']:
-        if not iface['iface'].startswith('ppp'):
-            print 'ifconfig %(iface)s down' % iface
+        print 'DOWN: ifconfig %(iface)s down' % iface
+        if iface['iface'].startswith('ppp'):
+            os.system('killall pppd')
+        else:
+            os.system('ifconfig %(iface)s down' % iface)
+    os.system('mv /etc/hosts.13.bak /etc/hosts')
+    os.system('mv /etc/networks.13.bak /etc/networks')
+
+def list(fd):
+    hosts = parse(fd)
+    for host in hosts.keys():
+        print host
 
 if __name__ == '__main__':
+    fd = file('routers_labo.csv')
+    if len(sys.argv) < 2:
+        print >>sys.stderr, 'Uso: %s [up|down] host' % sys.argv[0]
+        sys.exit(1)
     if sys.argv[1] == 'up':
-        up(sys.argv[2])
+        up(sys.argv[2], fd)
     elif sys.argv[1] == 'down':
-        down(sys.argv[2])
+        down(sys.argv[2], fd)
+    elif sys.argv[1] == 'restart':
+       down(sys.argv[2], fd)
+       up(sys.argv[2], file('routers_labo.csv'))
+    elif sys.argv[1] == 'list':
+        list(fd)