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This commit is contained in:
Mehdi Abaakouk 2012-05-30 09:16:58 +02:00
parent d93994e064
commit 1e08b5379e
1 changed files with 34 additions and 11 deletions
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45
lg.py
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@ -317,7 +317,7 @@ def get_as_name(_as):
""" """
if not _as.isdigit(): if not _as.isdigit():
return _as return _as.strip()
if _as not in ASNAME_CACHE: if _as not in ASNAME_CACHE:
whois_answer = whois_command("as%s" % _as) whois_answer = whois_command("as%s" % _as)
@ -332,6 +332,14 @@ def get_as_name(_as):
else: else:
return "AS%s\r%s" % (_as, ASNAME_CACHE[_as]) return "AS%s\r%s" % (_as, ASNAME_CACHE[_as])
def get_as_number_from_protocol_name(host, proto, protocol):
ret, res = bird_command(host, proto, "show protocols all %s" % protocol)
re_asnumber = re.search("Neighbor AS:\s*(\d*)", res)
if re_asnumber:
return re_asnumber.group(1)
else:
return "?????"
@app.route("/bgpmap/") @app.route("/bgpmap/")
def show_bgpmap(): def show_bgpmap():
@ -350,7 +358,7 @@ def show_bgpmap():
def add_node(_as, **kwargs): def add_node(_as, **kwargs):
if _as not in nodes: if _as not in nodes:
kwargs["label"] = kwargs.get("label", get_as_name(_as)) kwargs["label"] = '<<TABLE CELLBORDER="0" BORDER="0" CELLPADDING="0" CELLSPACING="0"><TR><TD ALIGN="CENTER">' + kwargs.get("label", get_as_name(_as)).replace("\r","<BR/>") + "</TD></TR></TABLE>>"
nodes[_as] = pydot.Node(_as, style="filled", fontsize="10", **kwargs) nodes[_as] = pydot.Node(_as, style="filled", fontsize="10", **kwargs)
graph.add_node(nodes[_as]) graph.add_node(nodes[_as])
return nodes[_as] return nodes[_as]
@ -364,6 +372,9 @@ def show_bgpmap():
edge = pydot.Edge(*edge_tuple, **kwargs) edge = pydot.Edge(*edge_tuple, **kwargs)
graph.add_edge(edge) graph.add_edge(edge)
edges[edge_tuple] = edge edges[edge_tuple] = edge
elif "label" in kwargs and kwargs["label"]:
e = edges[edge_tuple]
e.set_label(e.get_label() + "\r" + kwargs["label"])
return edges[edge_tuple] return edges[edge_tuple]
for host, asmaps in data.iteritems(): for host, asmaps in data.iteritems():
@ -384,12 +395,26 @@ def show_bgpmap():
for asmap in asmaps: for asmap in asmaps:
previous_as = host previous_as = host
color = "#%x" % random.randint(0, 16777215) color = "#%x" % random.randint(0, 16777215)
hop = False
hop_label = ""
for _as in asmap: for _as in asmap:
if _as == previous_as: if _as == previous_as:
continue continue
if not hop:
hop = True
if _as not in hosts:
hop_label = _as
continue
else:
hop_label = ""
add_node(_as, fillcolor=(first and "#F5A9A9" or "white")) add_node(_as, fillcolor=(first and "#F5A9A9" or "white"))
edge = add_edge(nodes[previous_as], nodes[_as] ) edge = add_edge(nodes[previous_as], nodes[_as] , label=hop_label, fontsize="7")
hop_label = ""
if first: if first:
edge.set_style("bold") edge.set_style("bold")
@ -403,6 +428,7 @@ def show_bgpmap():
node = add_node(previous_as) node = add_node(previous_as)
node.set_shape("box") node.set_shape("box")
#return Response("<pre>" + graph.create_dot() + "</pre>") #return Response("<pre>" + graph.create_dot() + "</pre>")
return Response(graph.create_png(), mimetype='image/png') return Response(graph.create_png(), mimetype='image/png')
@ -430,17 +456,14 @@ def build_as_tree_from_raw_bird_ouput(host, proto, text):
peer_protocol_name = expr.group(3).strip() peer_protocol_name = expr.group(3).strip()
# Check if via line is a internal route # Check if via line is a internal route
for rt_host, rt_ips in app.config["ROUTER_IP"].iteritems(): for rt_host, rt_ips in app.config["ROUTER_IP"].iteritems():
# Special case for internal routing
if peer_ip in rt_ips: if peer_ip in rt_ips:
path = [rt_host] path = [rt_host]
break break
else: # retreive as number from bird else:
ret, res = bird_command(host, proto, "show protocols all %s" % peer_protocol_name) # ugly hack for good printing
re_asnumber = re.search("Neighbor AS:\s*(\d*)", res) path = [ peer_protocol_name ]
if re_asnumber: # path = ["%s\r%s" % (peer_protocol_name, get_as_name(get_as_number_from_protocol_name(host, proto, peer_protocol_name)))]
path = [re_asnumber.group(1)]
else:
print "Missing retreive some information for the path"
path = ["as?????"]
if line.startswith("BGP.as_path:"): if line.startswith("BGP.as_path:"):
path.extend(line.replace("BGP.as_path:", "").strip().split(" ")) path.extend(line.replace("BGP.as_path:", "").strip().split(" "))