1 files changed, 168 insertions, 0 deletions
diff --git a/scripts/external_libs/scapy-python3-0.18/scapy/arch/unix.py b/scripts/external_libs/scapy-python3-0.18/scapy/arch/unix.py
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+++ b/scripts/external_libs/scapy-python3-0.18/scapy/arch/unix.py
@@ -0,0 +1,168 @@
+## This file is part of Scapy
+## See http://www.secdev.org/projects/scapy for more informations
+## Copyright (C) Philippe Biondi <phil@secdev.org>
+## This program is published under a GPLv2 license
+
+"""
+Common customizations for all Unix-like operating systems other than Linux
+"""
+
+import sys,os,struct,socket,time
+from subprocess import check_output
+from fcntl import ioctl
+from scapy.error import warning
+import scapy.config
+import scapy.utils
+import scapy.utils6
+import scapy.arch
+
+scapy.config.conf.use_winpcapy = True
+scapy.config.conf.use_netifaces = True
+scapy.config.conf.use_dnet = True
+from .pcapdnet import *
+
+
+
+##################
+## Routes stuff ##
+##################
+
+
+def read_routes():
+    if scapy.arch.SOLARIS:
+        f=check_output(["netstat", "-rvn"], universal_newlines = True) # -f inet
+    elif scapy.arch.FREEBSD:
+        f=check_output(["netstat", "-rnW"], universal_newlines = True) # -W to handle long interface names
+    else:
+        f=check_output(["netstat", "-rn"], universal_newlines = True) # -f inet
+    ok = False
+    routes = []
+    pending_if = []
+    for l in f.split('\n'):
+        l = l.strip()
+        if l.find("----") >= 0: # a separation line
+            continue
+        if not ok:
+            if_index = [ l.split().index(i) for i in ['Iface', 'Netif', 'Interface', 'Device'] if i in l.split()]
+            if if_index:
+                ok = True
+                if_index = if_index[0]
+            continue
+        if not l:
+            break
+        if scapy.arch.SOLARIS:
+            lspl = l.split()
+            if len(lspl) == 10:
+                dest,mask,gw,netif,mxfrg,rtt,ref,flg = lspl[:8]
+            else: # missing interface
+                dest,mask,gw,mxfrg,rtt,ref,flg = lspl[:7]
+                netif=None
+        else:
+            rt = l.split()
+            dest,gw,flg = rt[:3]
+            netif = rt[if_index]
+        if flg.find("Lc") >= 0:
+            continue                
+        if dest == "default":
+            dest = 0
+            netmask = 0
+        else:
+            if scapy.arch.SOLARIS:
+                netmask = scapy.utils.atol(mask)
+            elif "/" in dest:
+                dest,netmask = dest.split("/")
+                netmask = scapy.utils.itom(int(netmask))
+            else:
+                netmask = scapy.utils.itom((dest.count(".") + 1) * 8)
+            dest += ".0"*(3-dest.count("."))
+            dest = scapy.utils.atol(dest)
+        if not "G" in flg:
+            gw = '0.0.0.0'
+        if netif is not None:
+            ifaddr = scapy.arch.get_if_addr(netif)
+            routes.append((dest,netmask,gw,netif,ifaddr))
+        else:
+            pending_if.append((dest,netmask,gw))
+
+    # On Solaris, netstat does not provide output interfaces for some routes
+    # We need to parse completely the routing table to route their gw and
+    # know their output interface
+    for dest,netmask,gw in pending_if:
+        gw_l = scapy.utils.atol(gw)
+        max_rtmask,gw_if,gw_if_addr, = 0,None,None
+        for rtdst,rtmask,_,rtif,rtaddr in routes[:]:
+            if gw_l & rtmask == rtdst:
+                if rtmask >= max_rtmask:
+                    max_rtmask = rtmask
+                    gw_if = rtif
+                    gw_if_addr = rtaddr
+        if gw_if:
+            routes.append((dest,netmask,gw,gw_if,gw_if_addr))
+        else:
+            warning("Did not find output interface to reach gateway %s" % gw)
+            
+    return routes
+
+############
+### IPv6 ###
+############
+
+def read_routes6():
+    f = os.popen("netstat -rn -f inet6")
+    ok = False
+    mtu_present = False
+    prio_present = False
+    routes = []
+    lifaddr = in6_getifaddr()
+    for l in f.readlines():
+        if not l:
+            break
+        l = l.strip()
+        if not ok:
+            if l.find("Destination") >= 0:
+                ok = 1
+                mtu_present = l.find("Mtu") >= 0
+                prio_present = l.find("Prio") >= 0
+            continue
+        # gv 12/12/06: under debugging      
+        if scapy.arch.NETBSD or scapy.arch.OPENBSD:
+            lspl = l.split()
+            d,nh,fl = lspl[:3]
+            dev = lspl[5+mtu_present+prio_present]
+            expire = None
+        else:       # FREEBSD or DARWIN 
+            d,nh,fl,dev = l.split()[:4]
+        if [ x for x in lifaddr if x[2] == dev] == []:
+            continue
+        if 'L' in fl: # drop MAC addresses
+            continue
+
+        if 'link' in nh:
+            nh = '::'
+
+        cset = [] # candidate set (possible source addresses)
+        dp = 128
+        if d == 'default':
+            d = '::'
+            dp = 0
+        if '/' in d:
+            d,dp = d.split("/")
+            dp = int(dp)
+        if '%' in d:
+            d,dev = d.split('%')
+        if '%' in nh:
+            nh,dev = nh.split('%')
+        if scapy.arch.LOOPBACK_NAME in dev:
+            if d == '::' and dp == 96:  #Do not use ::/96 deprecated IPV4 mapping address
+              continue
+            cset = ['::1']
+            nh = '::'
+        else:
+            devaddrs = [ x for x in lifaddr if x[2] == dev ]
+            cset = scapy.utils6.construct_source_candidate_set(d, dp, devaddrs, scapy.arch.LOOPBACK_NAME)
+
+        if len(cset) != 0:
+            routes.append((d, dp, nh, dev, cset))
+
+    f.close()
+    return routes