Display reservations. Can't yet change them

2015-11-06 12:34:40 -05:00 · 2015-11-06 12:34:40 -05:00 · 5fe6c56601
parent ca70df5736
commit 5fe6c56601
5 changed files with 76 additions and 33 deletions
--- a/dhcp-hosts.dpto2
+++ b/dhcp-hosts.dpto2
@ -95,12 +95,13 @@ ff:ff:ff:ff:ff:fe,10.6.122.93
 ff:ff:ff:ff:ff:fe,10.6.122.94
 ff:ff:ff:ff:ff:fe,10.6.122.95
 # { "reserved-by": "Andy" }
-00:23:54:8c:65:13,10.6.122.96
+00:23:54:8c:65:13,10.6.122.96,set:client0023548c6513
 ff:ff:ff:ff:ff:fe,10.6.122.97
 ff:ff:ff:ff:ff:fe,10.6.122.98
 ff:ff:ff:ff:ff:fe,10.6.122.99
 ff:ff:ff:ff:ff:fe,10.6.122.100
-ff:ff:ff:ff:ff:fe,10.6.122.101
+# { "reserved-by": "Andy" }
+aa:bb:cc:dd:ee:ff,10.6.122.101,set:clientaabbccddeeff
 ff:ff:ff:ff:ff:fe,10.6.122.102
 ff:ff:ff:ff:ff:fe,10.6.122.103
 ff:ff:ff:ff:ff:fe,10.6.122.104
--- a/dhcp-opts.dpto2
+++ b/dhcp-opts.dpto2
@ -1 +1,3 @@
 tag:client5cf9ffffffff,option:router,10.0.0.1
+tag:clientaabbccddeeff,option:router,10.6.122.96
+tag:client0023548c6513,option:router,10.6.122.2
--- a/main.py
+++ b/main.py
@ -23,6 +23,7 @@ app.secret_key = "6ab77f3c45447429c2ae163c260a626029519a66450e474c"
 users_file = "/etc/freeradius/users.dpto2"
 dhcp_hosts_file = "/etc/dnsmasq.d/dpto2/dhcp-hosts"
 dhcp_opts_file = "/etc/dnsmasq.d/dpto2/dhcp-opts"
+impossible_mac = "ff:ff:ff:ff:ff:fe"

 class Lock:
    def __init__(self, lockfile):
@ -191,19 +192,21 @@ def list_users():
    return render_template("users.html", users=lines)

 mac_re = re.compile("(?:[0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}")
-ip_re = re.compile("\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}")
+ip_re_str = "\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}"
+ip_re = re.compile(ip_re_str)
 DhcpHostLine = namedtuple("DhcpHostLine","macs ip tag")

 def parse_dchp_host(line):
    macs = []
    ip = ""
-    tag = ""
+    tag = None
    parts = line.split(",")
    for p in parts:
        p = p.strip()
        m = mac_re.match(p)
        if m:
-            macs.append(m.group(0))
+            if m.group(0) != impossible_mac:
+                macs.append(m.group(0))
            continue
        m = ip_re.match(p)
        if m:
@ -213,14 +216,40 @@ def parse_dchp_host(line):
            tag = p[4:]
    return DhcpHostLine(macs, ip, tag)

-Ip = namedtuple("Ip","reserved_by dhcp locked")
+Ip = namedtuple("Ip","reserved_by dhcp_pool locked macs gw")

 def load_ips():
    ipmap = {}
    for i in range(1,255):
-        ipmap[i] = Ip("",True,False)
-    ipmap[0] = ipmap[255] = Ip("", False, False)
+        ipmap[i] = Ip(
+            reserved_by="",
+            dhcp_pool=True,
+            locked=False,
+            macs=[],
+            gw=None
+        )
+    ipmap[0] = ipmap[255] = Ip(
+        reserved_by="",
+        dhcp_pool=False,
+        locked=False,
+        macs=[],
+        gw=None
+    )
    prefix = None
+
+    # Read custom gateways
+    gws = {}
+    with open(dhcp_opts_file) as f:
+        for line in f:
+            line = line.strip()
+            if line.startswith("#"): continue
+            m = re.match(
+                    "tag:(client[0-9a-f]{12}),option:router,(" + ip_re_str + ")",
+                    line
+                )
+            if m:
+                gws[m.group(1)] = m.group(2)
+
    with open(dhcp_hosts_file) as f:
        meta = {}
        for line in f:
@ -241,8 +270,10 @@ def load_ips():
                    prefix = ".".join(r.ip.split(".")[:-1])
                ipmap[ip] = Ip(
                    reserved_by=meta.get("reserved-by",""),
-                    dhcp=False,
-                    locked=meta.get("locked",False)
+                    dhcp_pool=False,
+                    locked=meta.get("locked",False),
+                    macs=r.macs,
+                    gw=gws.get(r.tag, None)
                )
                meta = {}
    ipmap["prefix"] = prefix
@ -253,7 +284,7 @@ def ips():
    ipmap = load_ips()
    return render_template("ips.html", ipmap=ipmap)

-@app.route("/ip/<int:last_byte>")
+@app.route("/ip/<int:last_byte>", methods=['GET', 'POST'])
 def ip(last_byte):
    ipmap = load_ips()
    addr = "{}.{}".format(ipmap["prefix"], last_byte)
--- a/templates/ip.html
+++ b/templates/ip.html
@ -11,45 +11,54 @@
  <h3>Asignación de {{ addr }}</h3>
 </div>

+{{ meta }}
+
 {% if meta.locked %}
 <div class="alert alert-warning"><i class="fa fa-lock"></i> Esta dirección está reservada por <i>Ilúvatar</i></div>
 {% endif %}

 <div class="row">
+
 <form class="form-horizontal" method="POST">
 {% if meta.locked %}
 <fieldset disabled>
 {% endif %}
- <div class="form-group">
- <div class="col-xs-6">
-   <input type="checkbox" id="reserved" name="reserved"
-       {% if meta.reserved_by -%}
-           checked="checked"
-       {%- endif -%}>
-   <label for="reserved">Reservado a:</label>
-    <input type="text" class="form-control"
-           id="reserved-by" name="reserved-by"
+
+  <div class="form-group">
+   <div class="col-xs-6">
+    <input type="checkbox" id="reserved" name="reserved"
        {% if meta.reserved_by -%}
-            value="{{ meta.reserved_by }}"
-        {%- else -%}
-            disabled
-        {%- endif -%}
-        >
-    </div>  </div>
+            checked="checked"
+        {%- endif -%}>
+    <label for="reserved">Reservado a:</label>
+    <input type="text" class="form-control"
+            id="reserved-by" name="reserved-by"
+         {% if meta.reserved_by -%}
+             value="{{ meta.reserved_by }}"
+         {%- else -%}
+             disabled
+         {%- endif -%}
+         >
+  </div>
+ </div>
+
  <div class="form-group">
      <div class="col-xs-11">
-   <input type="checkbox" id="dhcp" name="dhcp"></input>
+   <input type="checkbox" id="dhcp" name="dhcp"
+       {% if meta.dhcp_pool or meta.macs %}checked="checked"{% endif %}/>
   <label for="dhcp">Ofrecer por DHCP</label>
   <fieldset id="dhcp-fieldset" disabled>
   <div class="form-group">
     <div class="col-sm-offset-1">
-       <input type="radio" id="dhcp-client-any" name="dhcp-client" value="any">
+       <input type="radio" id="dhcp-client-any" name="dhcp-client" value="any"
+        {% if meta.dhcp_pool %}checked="checked"{% endif %}/>
       <label for="dhcp-client-any">A cualquier dispositivo</label>
     </div>
   </div>
   <div class="form-group">
     <div class="col-sm-offset-1">
-       <input type="radio" id="dhcp-client-specific" name="dhcp-client" value="mac">
+       <input type="radio" id="dhcp-client-specific" name="dhcp-client" value="mac"
+       {% if meta.macs %}checked="checked"{% endif %}/>
       <label for="dhcp-client-specific">A un dispositivo específico</label>
       <div class="form-group">
        <fieldset id="dhcp-specific-fieldset" disabled>
@ -57,7 +66,7 @@
             <label for="dhcp-client-mac" class="col-sm-4 control-label">MAC:</label>
             <div class="col-sm-5">
             <input type="text" class="form-control" name="dhcp-client-mac"
-                    placeholder="aa:bb:cc:dd:ee:ff"/>
+                    value="{{ meta.macs|join(",") }}"/>
             </div>
         </div>
         <div>
@ -66,7 +75,7 @@
             </label>
             <div class="col-sm-5">
             <input type="text" class="form-control" name="dhcp-client-mac"
-                    placeholder="10.6.122.1"/>
+                    value="{{ meta.gw if meta.gw }}"/>
             </div>
         </div>
        </fieldset>
--- a/templates/ips.html
+++ b/templates/ips.html
@ -23,11 +23,11 @@
          {%- if col == 7 %} ips-ver-half{% endif %}
          {%- if row == 7 %} ips-hor-half{% endif %}
          {% if unusable %} unusable{% endif %}
-          {%- if ipmap[ip].dhcp %} dhcp-pool{% endif -%}
+          {%- if ipmap[ip].dhcp_pool %} dhcp-pool{% endif -%}
          ">
          <div style="display: inline-block; max-height: 52px;">
              <div class="name">
-                {% if ipmap[ip].dhcp %}
+                {% if ipmap[ip].dhcp_pool %}
                    DHCP
                {% else %}
                    {{ ipmap[ip].reserved_by }}