commit c3f883a72a5a9972cad507eb0479073a04dab6c3 Author: David Fifield david@bamsoftware.com Date: Wed Dec 19 19:20:36 2012 -0800

Add abstractions for using IPv4/IPv6 reg pools.

Still always going to the IPv4 pool. --- facilitator/facilitator | 45 +++++++++++++++++++++++++++++++++++++++++++-- 1 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/facilitator/facilitator b/facilitator/facilitator index c1cf89a..a0538d2 100755 --- a/facilitator/facilitator +++ b/facilitator/facilitator @@ -234,7 +234,24 @@ class Handler(SocketServer.StreamRequestHandler): print >> self.wfile, "ERROR"

def do_GET(self, params): - reg = REGS_IPV4.fetch() + proxy_spec = fac.param_first("FROM", params) + if proxy_spec is None: + log(u"GET missing FROM param") + self.send_error() + return False + try: + proxy_addr = fac.parse_addr_spec(proxy_spec, defport=0) + except ValueError, e: + log(u"syntax error in proxy address %s: %s" % (safe_str(repr(proxy_spec)), safe_str(repr(str(e))))) + self.send_error() + return False + + try: + reg = get_reg_for_proxy(proxy_addr) + except Exception, e: + log(u"error getting reg for proxy address %s: %s" % (safe_str(repr(proxy_spec)), safe_str(repr(str(e))))) + self.send_error() + return False if reg: log(u"proxy gets %s, relay %s (now %d)" % (safe_str(unicode(reg)), options.relay_spec, num_regs())) @@ -260,7 +277,13 @@ class Handler(SocketServer.StreamRequestHandler): self.send_error() return False

- if REGS_IPV4.add(reg): + try: + ok = put_reg(reg) + except Exception, e: + log(u"error putting reg %s: %s" % (safe_str(repr(client_spec)), safe_str(repr(str(e))))) + self.send_error() + return False + if ok: log(u"client %s (now %d)" % (safe_str(unicode(reg)), num_regs())) else: log(u"client %s (already present, now %d)" % (safe_str(unicode(reg)), num_regs())) @@ -281,6 +304,24 @@ def num_regs(): """Return the total number of registrations.""" return len(REGS_IPV4) + len(REGS_IPV6)

+def regs_for_af(af): + """Return the correct regs pool for the given address family.""" + if af == socket.AF_INET: + return REGS_IPV4 + elif af == socket.AF_INET6: + return REGS_IPV6 + else: + raise ValueError("unknown address family %d" % af) + +def get_reg_for_proxy(proxy_addr): + """Get a client registration appropriate for the given proxy (one of a + matching address family).""" + return REGS_IPV4.fetch() + +def put_reg(reg): + """Add a registration.""" + REGS_IPV4.add(reg) + def main(): opts, args = getopt.gnu_getopt(sys.argv[1:], "dhl:p:r:", ["debug", "help", "log=", "port=", "pidfile=", "relay=", "unsafe-logging"])