.fmf/version

@@ -0,0 +1 @@
+1

.gitignore

@@ -1 +1,12 @@
-SOURCES/kdcproxy-0.4.tar.gz
+/kdcproxy-0.1.1.tar.gz
+/kdcproxy-0.2.tar.gz
+/kdcproxy-0.2.1.tar.gz
+/v0.3.tar.gz
+/v0.3.1.tar.gz
+/v0.3.2.tar.gz
+/kdcproxy-0.4.tar.gz
+/kdcproxy-0.4.1.tar.gz
+/kdcproxy-0.4.2.tar.gz
+/kdcproxy-1.0.0.tar.gz
+/kdcproxy-1.1.0.tar.gz
+/kdcproxy-1.1.0.tar.gz.sha512sum.txt

.python-kdcproxy.metadata

@@ -1 +0,0 @@
-48cffec358fe9e15a66fb040b6b7fc87f642f6da SOURCES/kdcproxy-0.4.tar.gz

SOURCES/0005-Fix-DoS-vulnerability-based-on-unbounded-TCP-bufferi.patch

@@ -1,206 +0,0 @@
-From 829cfae65bde395302948c99dbf0e0e8f97a1ce0 Mon Sep 17 00:00:00 2001
-From: Julien Rische <jrische@redhat.com>
-Date: Fri, 3 Oct 2025 17:39:36 +0200
-Subject: [PATCH] Fix DoS vulnerability based on unbounded TCP buffering
-
-In Application.__handle_recv(), the next part of the TCP exchange is
-received and queued to the io.BytesIO stream. Then, the content of the
-stream was systematically exported to a buffer. However, this buffer
-is only used if the data transfer is finished, causing a waste of
-processing resources if the message is received in multiple parts.
-
-On top of these unnecessary operations, this function does not handle
-length limits properly: it accepts to receive chunks of data with both
-an individual and total length larger than the maximum theoretical
-length of a Kerberos message, and will continue to wait for data as long
-as the input stream's length is not exactly the same as the one provided
-in the header of the response (even if the stream is already longer than
-the expected length).
-
-If the kdcproxy service is not protected against DNS discovery abuse,
-the attacker could take advantage of these problems to operate a
-denial-of-service attack (CVE-2025-59089).
-
-After this commit, kdcproxy will interrupt the receiving of a message
-after it exceeds the maximum length of a Kerberos message or the length
-indicated in the message header. Also it will only export the content of
-the input stream to a buffer once the receiving process has ended.
-
-Signed-off-by: Julien Rische <jrische@redhat.com>
-(cherry picked from commit 93ba7376098d9a3b6d039475e15778b0ffd024de)
----
- kdcproxy/__init__.py | 51 +++++++++++++++++++-------------
- tests.py             | 70 ++++++++++++++++++++++++++++++++++++++++++++
- 2 files changed, 100 insertions(+), 21 deletions(-)
-
-diff --git a/kdcproxy/__init__.py b/kdcproxy/__init__.py
-index a84ad4a..10a7b00 100644
---- a/kdcproxy/__init__.py
-+++ b/kdcproxy/__init__.py
-@@ -148,6 +148,7 @@ class Application:
-                     if self.sock_type(sock) == socket.SOCK_STREAM:
-                         # Remove broken TCP socket from readers
-                         rsocks.remove(sock)
-+                        read_buffers.pop(sock)
-                 else:
-                     if reply is not None:
-                         return reply
-@@ -173,7 +174,7 @@ class Application:
-         if self.sock_type(sock) == socket.SOCK_DGRAM:
-             # For UDP sockets, recv() returns an entire datagram
-             # package. KDC sends one datagram as reply.
--            reply = sock.recv(1048576)
-+            reply = sock.recv(self.MAX_LENGTH)
-             # If we proxy over UDP, we will be missing the 4-byte
-             # length prefix. So add it.
-             reply = struct.pack("!I", len(reply)) + reply
-@@ -185,30 +186,38 @@ class Application:
-         if buf is None:
-             read_buffers[sock] = buf = io.BytesIO()
- 
--        part = sock.recv(1048576)
--        if not part:
--            # EOF received.  Return any incomplete data we have on the theory
--            # that a decode error is more apparent than silent failure.  The
--            # client will fail faster, at least.
--            read_buffers.pop(sock)
--            reply = buf.getvalue()
--            return reply
-+        part = sock.recv(self.MAX_LENGTH)
-+        if part:
-+            # Data received, accumulate it in a buffer.
-+            buf.write(part)
- 
--        # Data received, accumulate it in a buffer.
--        buf.write(part)
-+            reply = buf.getbuffer()
-+            if len(reply) < 4:
-+                # We don't have the length yet.
-+                return None
- 
--        reply = buf.getvalue()
--        if len(reply) < 4:
--            # We don't have the length yet.
--            return None
-+            # Got enough data to check if we have the full package.
-+            (length, ) = struct.unpack("!I", reply[0:4])
-+            length += 4  # add prefix length
- 
--        # Got enough data to check if we have the full package.
--        (length, ) = struct.unpack("!I", reply[0:4])
--        if length + 4 == len(reply):
--            read_buffers.pop(sock)
--            return reply
-+            if length > self.MAX_LENGTH:
-+                raise ValueError('Message length exceeds the maximum length '
-+                                 'for a Kerberos message (%i > %i)'
-+                                 % (length, self.MAX_LENGTH))
- 
--        return None
-+            if len(reply) > length:
-+                raise ValueError('Message length exceeds its expected length '
-+                                 '(%i > %i)' % (len(reply), length))
-+
-+            if len(reply) < length:
-+                return None
-+
-+        # Else (if part is None), EOF was received.  Return any incomplete data
-+        # we have on the theory that a decode error is more apparent than
-+        # silent failure.  The client will fail faster, at least.
-+
-+        read_buffers.pop(sock)
-+        return buf.getvalue()
- 
-     def __filter_addr(self, addr):
-         if addr[0] not in (socket.AF_INET, socket.AF_INET6):
-diff --git a/tests.py b/tests.py
-index c2b1fc0..e3fa4f7 100644
---- a/tests.py
-+++ b/tests.py
-@@ -20,6 +20,8 @@
- # THE SOFTWARE.
- 
- import os
-+import socket
-+import struct
- import sys
- import unittest
- from base64 import b64decode
-@@ -123,6 +125,74 @@ class KDCProxyWSGITests(unittest.TestCase):
-                                                      kpasswd=True)
-         self.assertEqual(response.status_code, 503)
- 
-+    @mock.patch("socket.getaddrinfo", return_value=addrinfo)
-+    @mock.patch("socket.socket")
-+    def test_tcp_message_length_exceeds_max(self, m_socket, m_getaddrinfo):
-+        # Test that TCP messages with length > MAX_LENGTH raise ValueError
-+        # Create a message claiming to be larger than MAX_LENGTH
-+        max_len = self.app.MAX_LENGTH
-+        # Length prefix claiming message is larger than allowed
-+        oversized_length = max_len + 1
-+        malicious_msg = struct.pack("!I", oversized_length)
-+
-+        # Mock socket to return the malicious length prefix
-+        mock_sock = m_socket.return_value
-+        mock_sock.recv.return_value = malicious_msg
-+        mock_sock.getsockopt.return_value = socket.SOCK_STREAM
-+
-+        # Manually call the receive method to test it
-+        read_buffers = {}
-+        with self.assertRaises(ValueError) as cm:
-+            self.app._Application__handle_recv(mock_sock, read_buffers)
-+
-+        self.assertIn("exceeds the maximum length", str(cm.exception))
-+        self.assertIn(str(max_len), str(cm.exception))
-+
-+    @mock.patch("socket.getaddrinfo", return_value=addrinfo)
-+    @mock.patch("socket.socket")
-+    def test_tcp_message_data_exceeds_expected_length(
-+        self, m_socket, m_getaddrinfo
-+    ):
-+        # Test that receiving more data than expected raises ValueError
-+        # Create a message with length = 100 but send more data
-+        expected_length = 100
-+        length_prefix = struct.pack("!I", expected_length)
-+        # Send more data than the length prefix indicates
-+        extra_data = b"X" * (expected_length + 10)
-+        malicious_msg = length_prefix + extra_data
-+
-+        mock_sock = m_socket.return_value
-+        mock_sock.recv.return_value = malicious_msg
-+        mock_sock.getsockopt.return_value = socket.SOCK_STREAM
-+
-+        read_buffers = {}
-+        with self.assertRaises(ValueError) as cm:
-+            self.app._Application__handle_recv(mock_sock, read_buffers)
-+
-+        self.assertIn("exceeds its expected length", str(cm.exception))
-+
-+    @mock.patch("socket.getaddrinfo", return_value=addrinfo)
-+    @mock.patch("socket.socket")
-+    def test_tcp_eof_returns_buffered_data(self, m_socket, m_getaddrinfo):
-+        # Test that EOF returns any buffered data
-+        initial_data = b"\x00\x00\x00\x10"  # Length = 16
-+        mock_sock = m_socket.return_value
-+        mock_sock.getsockopt.return_value = socket.SOCK_STREAM
-+
-+        # First recv returns some data, second returns empty (EOF)
-+        mock_sock.recv.side_effect = [initial_data, b""]
-+
-+        read_buffers = {}
-+        # First call buffers the data
-+        result = self.app._Application__handle_recv(mock_sock, read_buffers)
-+        self.assertIsNone(result)  # Not complete yet
-+
-+        # Second call gets EOF and returns buffered data
-+        result = self.app._Application__handle_recv(mock_sock, read_buffers)
-+        self.assertEqual(result, initial_data)
-+        # Buffer should be cleaned up
-+        self.assertNotIn(mock_sock, read_buffers)
-+
- 
- def decode(data):
-     data = data.replace(b'\\n', b'')
--- 
-2.51.0
-

SOURCES/Always-buffer-TCP-data-in-__handle_recv.patch

@@ -1,84 +0,0 @@
-From c1be487bb00f2e813212031d93fcebbfbd0da60b Mon Sep 17 00:00:00 2001
-From: Robbie Harwood <rharwood@redhat.com>
-Date: Thu, 29 Aug 2019 11:13:41 -0400
-Subject: [PATCH] Always buffer TCP data in __handle_recv()
-
-Refactor __handle_recv() to always create a BytesIO() object for TCP
-data.  Linearize control flow for ease of debugging.  Always apply
-length checks so that we don't have to wait for EOF in the multiple-recv
-case.
-
-Fixes a bug where we wouldn't return any data because we never received
-the EOF, or didn't receive it fast enough.
-
-Signed-off-by: Robbie Harwood <rharwood@redhat.com>
-(cherry picked from commit 7e2b1ab27b843c220fe301b74bab01ed61b0f59a)
----
- kdcproxy/__init__.py | 54 +++++++++++++++++++++++++-------------------
- 1 file changed, 31 insertions(+), 23 deletions(-)
-
-diff --git a/kdcproxy/__init__.py b/kdcproxy/__init__.py
-index 6526bc9..9bc7044 100644
---- a/kdcproxy/__init__.py
-+++ b/kdcproxy/__init__.py
-@@ -128,29 +128,37 @@ class Application:
-             # length prefix. So add it.
-             reply = struct.pack("!I", len(reply)) + reply
-             return reply
--        else:
--            # TCP is a different story. The reply must be buffered
--            # until the full answer is accumulated.
--            buf = read_buffers.get(sock)
--            part = sock.recv(1048576)
--            if buf is None:
--                if len(part) > 4:
--                    # got enough data in the initial package. Now check
--                    # if we got the full package in the first run.
--                    (length, ) = struct.unpack("!I", part[0:4])
--                    if length + 4 == len(part):
--                        return part
--                read_buffers[sock] = buf = io.BytesIO()
--
--            if part:
--                # data received, accumulate it in a buffer
--                buf.write(part)
--                return None
--            else:
--                # EOF received
--                read_buffers.pop(sock)
--                reply = buf.getvalue()
--                return reply
-+
-+        # TCP is a different story. The reply must be buffered until the full
-+        # answer is accumulated.
-+        buf = read_buffers.get(sock)
-+        if buf is None:
-+            read_buffers[sock] = buf = io.BytesIO()
-+
-+        part = sock.recv(1048576)
-+        if not part:
-+            # EOF received.  Return any incomplete data we have on the theory
-+            # that a decode error is more apparent than silent failure.  The
-+            # client will fail faster, at least.
-+            read_buffers.pop(sock)
-+            reply = buf.getvalue()
-+            return reply
-+
-+        # Data received, accumulate it in a buffer.
-+        buf.write(part)
-+
-+        reply = buf.getvalue()
-+        if len(reply) < 4:
-+            # We don't have the length yet.
-+            return None
-+
-+        # Got enough data to check if we have the full package.
-+        (length, ) = struct.unpack("!I", reply[0:4])
-+        if length + 4 == len(reply):
-+            read_buffers.pop(sock)
-+            return reply
-+
-+        return None
- 
-     def __filter_addr(self, addr):
-         if addr[0] not in (socket.AF_INET, socket.AF_INET6):

SOURCES/Correct-addrs-sorting-to-be-by-TCP-UDP.patch

@@ -1,28 +0,0 @@
-From 5cfde6d085320da3fb5d4c6506e6d6253438669c Mon Sep 17 00:00:00 2001
-From: Robbie Harwood <rharwood@redhat.com>
-Date: Fri, 2 Aug 2019 13:54:05 -0400
-Subject: [PATCH] Correct addrs sorting to be by TCP/UDP
-
-Fixes any potential cases where the resolver might yield UDP addresses
-first.
-
-Signed-off-by: Robbie Harwood <rharwood@redhat.com>
-(cherry picked from commit d0b35c2b71a172f409b4311d36538d8fa3433c58)
----
- kdcproxy/__init__.py | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/kdcproxy/__init__.py b/kdcproxy/__init__.py
-index c59f2b3..6526bc9 100644
---- a/kdcproxy/__init__.py
-+++ b/kdcproxy/__init__.py
-@@ -227,7 +227,8 @@ class Application:
-                 #
-                 # Stick a None address on the end so we can get one
-                 # more attempt after all servers have been contacted.
--                addrs = tuple(sorted(filter(self.__filter_addr, addrs)))
-+                addrs = tuple(sorted(filter(self.__filter_addr, addrs),
-+                                     key=lambda a: a[2]))
-                 for addr in addrs + (None,):
-                     if addr is not None:
-                         # Bypass unspecified socktypes

SOURCES/Make-webtest-an-optional-dependency.patch

@@ -1,36 +0,0 @@
-From 2164f10fe5d992006f42c4a8d682f23b04ffbf12 Mon Sep 17 00:00:00 2001
-From: Robbie Harwood <rharwood@redhat.com>
-Date: Thu, 9 Aug 2018 14:57:56 -0400
-Subject: [PATCH] Make webtest an optional dependency
-
-Resolves: #38
-(cherry picked from commit c0bee88c60deb176d420d90447d24c370d70727a)
----
- tests.py | 7 ++++++-
- 1 file changed, 6 insertions(+), 1 deletion(-)
-
-diff --git a/tests.py b/tests.py
-index 992529f..c2b1fc0 100644
---- a/tests.py
-+++ b/tests.py
-@@ -33,7 +33,11 @@ from dns.rdataclass import IN as RDCLASS_IN
- from dns.rdatatype import SRV as RDTYPE_SRV
- from dns.rdtypes.IN.SRV import SRV
- 
--from webtest import TestApp as WebTestApp
-+try:
-+    from webtest import TestApp as WebTestApp
-+except ImportError:
-+    print("webtest not installed!  Tests will be skipped")
-+    WebTestApp = "skip"
- 
- import kdcproxy
- from kdcproxy import codec
-@@ -45,6 +49,7 @@ HERE = os.path.dirname(os.path.abspath(__file__))
- KRB5_CONFIG = os.path.join(HERE, 'tests.krb5.conf')
- 
- 
-+@unittest.skipIf(WebTestApp == "skip", "webtest not installed")
- class KDCProxyWSGITests(unittest.TestCase):
-     addrinfo = [
-         (2, 1, 6, '', ('128.66.0.2', 88)),

SOURCES/Use-dedicated-kdcproxy-logger.patch

@@ -1,71 +0,0 @@
-From d66084656bd01e22a5f23119968bd939d380875c Mon Sep 17 00:00:00 2001
-From: Julien Rische <jrische@redhat.com>
-Date: Mon, 18 Nov 2024 10:01:16 +0100
-Subject: [PATCH] Use dedicated "kdcproxy" logger
-
-Signed-off-by: Julien Rische <jrische@redhat.com>
-(cherry picked from commit c8a69dbc0777579ba3bf3d156baed0966327ebc2)
----
- kdcproxy/__init__.py        | 7 +++++--
- kdcproxy/config/__init__.py | 7 +++++--
- 2 files changed, 10 insertions(+), 4 deletions(-)
-
-diff --git a/kdcproxy/__init__.py b/kdcproxy/__init__.py
-index cfec0f3..a84ad4a 100644
---- a/kdcproxy/__init__.py
-+++ b/kdcproxy/__init__.py
-@@ -37,6 +37,9 @@ else:
-     import httplib
-     import urlparse
- 
-+logging.basicConfig()
-+logger = logging.getLogger('kdcproxy')
-+
- 
- class HTTPException(Exception):
- 
-@@ -326,8 +329,8 @@ class Application:
-                         fail_socktype = self.addr2socktypename(fail_addr)
-                         fail_ip = fail_addr[4][0]
-                         fail_port = fail_addr[4][1]
--                        logging.warning("Exchange with %s:[%s]:%d failed: %s",
--                                        fail_socktype, fail_ip, fail_port, e)
-+                        logger.warning("Exchange with %s:[%s]:%d failed: %s",
-+                                       fail_socktype, fail_ip, fail_port, e)
-                     if reply is not None:
-                         break
- 
-diff --git a/kdcproxy/config/__init__.py b/kdcproxy/config/__init__.py
-index 5bff159..93af69a 100644
---- a/kdcproxy/config/__init__.py
-+++ b/kdcproxy/config/__init__.py
-@@ -32,6 +32,9 @@ except ImportError:  # Python 2.x
- import dns.rdatatype
- import dns.resolver
- 
-+logging.basicConfig()
-+logger = logging.getLogger('kdcproxy')
-+
- 
- class IResolver(object):
- 
-@@ -60,14 +63,14 @@ class KDCProxyConfig(IConfig):
-         try:
-             self.__cp.read(filename)
-         except configparser.Error:
--            logging.error("Unable to read config file: %s", filename)
-+            logger.error("Unable to read config file: %s", filename)
- 
-         try:
-             mod = self.__cp.get(self.GLOBAL, "configs")
-             try:
-                 importlib.import_module("kdcproxy.config." + mod)
-             except ImportError as e:
--                logging.log(logging.ERROR, "Error reading config: %s" % e)
-+                logger.log(logging.ERROR, "Error reading config: %s" % e)
-         except configparser.Error:
-             pass
- 
--- 
-2.46.0
-

SOURCES/Use-exponential-backoff-for-connection-retries.patch

@@ -1,158 +0,0 @@
-From c8ed63653cfdf4a55ad4cf26cb11e8938b227f13 Mon Sep 17 00:00:00 2001
-From: Julien Rische <jrische@redhat.com>
-Date: Mon, 18 Nov 2024 09:38:13 +0100
-Subject: [PATCH] Use exponential backoff for connection retries
-
-Calls to socket.connect() are non-blocking, hence all subsequent calls
-to socket.sendall() will fail if the target KDC service is temporarily
-or indefinitely unreachable. Since the kdcproxy task uses busy-looping,
-it results in the journal to be flooded with warning logs.
-
-This commit introduces a per-socket reactivation delay which increases
-exponentially as the number of reties is incremented, until timeout is
-reached (i.e. 100ms, 200ms, 400ms, 800ms, 1.6s, 3.2s, ...).
-
-Signed-off-by: Julien Rische <jrische@redhat.com>
-(cherry picked from commit bac3c99c1b23487e38d965a79173ce9519e19c75)
----
- kdcproxy/__init__.py | 63 +++++++++++++++++++++++++++++++++++++++++---
- 1 file changed, 60 insertions(+), 3 deletions(-)
-
-diff --git a/kdcproxy/__init__.py b/kdcproxy/__init__.py
-index 9bc7044..cfec0f3 100644
---- a/kdcproxy/__init__.py
-+++ b/kdcproxy/__init__.py
-@@ -60,6 +60,13 @@ class HTTPException(Exception):
-         return "%d %s" % (self.code, httplib.responses[self.code])
- 
- 
-+class SocketException(Exception):
-+
-+    def __init__(self, message, sock):
-+        super(Exception, self).__init__(message)
-+        self.sockfno = sock.fileno()
-+
-+
- class Application:
-     MAX_LENGTH = 128 * 1024
-     SOCKTYPES = {
-@@ -67,10 +74,23 @@ class Application:
-         "udp": socket.SOCK_DGRAM,
-     }
- 
-+    def addr2socktypename(self, addr):
-+        ret = None
-+        for name in self.SOCKTYPES:
-+            if self.SOCKTYPES[name] == addr[1]:
-+                ret = name
-+                break
-+        return ret
-+
-     def __init__(self):
-         self.__resolver = MetaResolver()
- 
-     def __await_reply(self, pr, rsocks, wsocks, timeout):
-+        starting_time = time.time()
-+        send_error = None
-+        recv_error = None
-+        failing_sock = None
-+        reactivations = {}
-         extra = 0
-         read_buffers = {}
-         while (timeout + extra) > time.time():
-@@ -91,6 +111,12 @@ class Application:
-                     pass
- 
-             for sock in w:
-+                # Fetch reactivation tuple:
-+                #   1st element: reactivation index (-1 = first activation)
-+                #   2nd element: planned reactivation time (0.0 = now)
-+                (rn, rt) = reactivations.get(sock, (-1, 0.0))
-+                if rt > time.time():
-+                    continue
-                 try:
-                     if self.sock_type(sock) == socket.SOCK_DGRAM:
-                         # If we proxy over UDP, remove the 4-byte length
-@@ -100,8 +126,13 @@ class Application:
-                         sock.sendall(pr.request)
-                         extra = 10  # New connections get 10 extra seconds
-                 except Exception as e:
--                    logging.warning("Conection broken while writing (%s)", e)
-+                    send_error = e
-+                    failing_sock = sock
-+                    reactivations[sock] = (rn + 1,
-+                                           time.time() + 2.0**(rn + 1) / 10)
-                     continue
-+                if sock in reactivations:
-+                    del reactivations[sock]
-                 rsocks.append(sock)
-                 wsocks.remove(sock)
- 
-@@ -109,7 +140,8 @@ class Application:
-                 try:
-                     reply = self.__handle_recv(sock, read_buffers)
-                 except Exception as e:
--                    logging.warning("Connection broken while reading (%s)", e)
-+                    recv_error = e
-+                    failing_sock = sock
-                     if self.sock_type(sock) == socket.SOCK_STREAM:
-                         # Remove broken TCP socket from readers
-                         rsocks.remove(sock)
-@@ -117,6 +149,21 @@ class Application:
-                     if reply is not None:
-                         return reply
- 
-+        if reactivations:
-+            raise SocketException("Timeout while sending packets after %.2fs "
-+                                  "and %d tries: %s" % (
-+                                      (timeout + extra) - starting_time,
-+                                      sum(map(lambda r: r[0],
-+                                              reactivations.values())),
-+                                      send_error),
-+                                  failing_sock)
-+        elif recv_error is not None:
-+            raise SocketException("Timeout while receiving packets after "
-+                                  "%.2fs: %s" % (
-+                                      (timeout + extra) - starting_time,
-+                                      recv_error),
-+                                  failing_sock)
-+
-         return None
- 
-     def __handle_recv(self, sock, read_buffers):
-@@ -214,6 +261,7 @@ class Application:
-             reply = None
-             wsocks = []
-             rsocks = []
-+            sockfno2addr = {}
-             for server in map(urlparse.urlparse, servers):
-                 # Enforce valid, supported URIs
-                 scheme = server.scheme.lower().split("+", 1)
-@@ -260,6 +308,7 @@ class Application:
-                                 continue
-                         except io.BlockingIOError:
-                             pass
-+                        sockfno2addr[sock.fileno()] = addr
-                         wsocks.append(sock)
- 
-                     # Resend packets to UDP servers
-@@ -270,7 +319,15 @@ class Application:
- 
-                     # Call select()
-                     timeout = time.time() + (15 if addr is None else 2)
--                    reply = self.__await_reply(pr, rsocks, wsocks, timeout)
-+                    try:
-+                        reply = self.__await_reply(pr, rsocks, wsocks, timeout)
-+                    except SocketException as e:
-+                        fail_addr = sockfno2addr[e.sockfno]
-+                        fail_socktype = self.addr2socktypename(fail_addr)
-+                        fail_ip = fail_addr[4][0]
-+                        fail_port = fail_addr[4][1]
-+                        logging.warning("Exchange with %s:[%s]:%d failed: %s",
-+                                        fail_socktype, fail_ip, fail_port, e)
-                     if reply is not None:
-                         break
- 
--- 
-2.46.0
-

SPECS/python-kdcproxy.spec

@@ -1,227 +0,0 @@
-%global realname kdcproxy
-
-%if 0%{?fedora} || 0%{?rhel} > 7
-%global with_python3 1
-%else
-%global with_python3 0
-%endif
-
-%if 0%{?fedora} || 0%{?rhel} <= 7
-%global with_python2 1
-%else
-%global with_python2 0
-%endif
-
-Name:           python-%{realname}
-Version:        0.4
-Release:        5%{?dist}.2
-Summary:        MS-KKDCP (kerberos proxy) WSGI module
-
-License:        MIT
-URL:            https://github.com/npmccallum/%{realname}
-Source0:        https://github.com/npmccallum/%{realname}/archive/%{realname}-%{version}.tar.gz
-
-Patch0: Make-webtest-an-optional-dependency.patch
-Patch1: Correct-addrs-sorting-to-be-by-TCP-UDP.patch
-Patch2: Always-buffer-TCP-data-in-__handle_recv.patch
-Patch3: Use-exponential-backoff-for-connection-retries.patch
-Patch4: Use-dedicated-kdcproxy-logger.patch
-Patch5: 0005-Fix-DoS-vulnerability-based-on-unbounded-TCP-bufferi.patch
-Patch6: 0006-Use-DNS-discovery-for-declared-realms-only.patch
-
-BuildArch:      noarch
-BuildRequires:  git
-
-%if 0%{?with_python2} > 0
-BuildRequires:  python2-devel
-BuildRequires:  python2-pytest
-BuildRequires:  python2-coverage
-BuildRequires:  python2-asn1crypto
-BuildRequires:  python2-dns
-BuildRequires:  python2-mock
-%endif
-
-%if 0%{?with_python3} > 0
-BuildRequires:  python3-devel
-BuildRequires:  python3-pytest
-BuildRequires:  python3-coverage
-BuildRequires:  python3-asn1crypto
-BuildRequires:  python3-dns
-BuildRequires:  python3-mock
-%endif
-
-
-%description
-This package contains a Python WSGI module for proxying KDC requests over
-HTTP by following the MS-KKDCP protocol. It aims to be simple to deploy, with
-minimal configuration.
-
-%if 0%{?with_python2} > 0
-%package -n python2-%{realname}
-Summary:        MS-KKDCP (kerberos proxy) WSGI module
-Requires:       python2-dns
-Requires:       python2-asn1crypto
-
-%{?python_provide:%python_provide python2-%{realname}}
-
-%description -n python2-%{realname}
-This package contains a Python 2.x WSGI module for proxying KDC requests over
-HTTP by following the MS-KKDCP protocol. It aims to be simple to deploy, with
-minimal configuration.
-%endif
-
-%if 0%{?with_python3} > 0
-%package -n python3-%{realname}
-Summary:        MS-KKDCP (kerberos proxy) WSGI module
-Requires:       python3-dns
-Requires:       python3-asn1crypto
-
-%{?python_provide:%python_provide python3-%{realname}}
-
-%description -n python3-%{realname}
-This package contains a Python 3.x WSGI module for proxying KDC requests over
-HTTP by following the MS-KKDCP protocol. It aims to be simple to deploy, with
-minimal configuration.
-%endif
-
-%prep
-%autosetup -S git -n %{realname}-%{version}
-
-
-%build
-%if 0%{?with_python2} > 0
-%py2_build
-%endif
-%if 0%{?with_python3} > 0
-%py3_build
-%endif
-
-%install
-%if 0%{?with_python2} > 0
-%py2_install
-%endif
-%if 0%{?with_python3} > 0
-%py3_install
-%endif
-
-%check
-%if 0%{?with_python2} > 0
-KDCPROXY_ASN1MOD=asn1crypto %{__python2} -m pytest
-%endif
-%if 0%{?with_python3} > 0
-KDCPROXY_ASN1MOD=asn1crypto %{__python3} -m pytest
-%endif
-
-%if 0%{?with_python2} > 0
-%files -n python2-%{realname}
-%doc README
-%license COPYING
-%{python2_sitelib}/%{realname}/
-%{python2_sitelib}/%{realname}-%{version}-*.egg-info
-%endif
-
-%if 0%{?with_python3} > 0
-%files -n python3-%{realname}
-%doc README
-%license COPYING
-%{python3_sitelib}/%{realname}/
-%{python3_sitelib}/%{realname}-%{version}-*.egg-info
-%endif
-
-%changelog
-* Wed Oct 22 2025 Julien Rische <jrische@redhat.com> - 0.4-5.2
-- Use DNS discovery for declared realms only (CVE-2025-59088)
-  Resolves: RHEL-113657
-- Fix DoS vulnerability based on unbounded TCP buffering (CVE-2025-59089)
-  Resolves: RHEL-113664
-
-* Fri Nov 22 2024 Julien Rische <jrische@redhat.com> - 0.4-5.1
-- Log KDC timeout only once per request
-  Resolves: RHEL-68634
-
-* Fri Oct 25 2019 Robbie Harwood <rharwood@redhat.com> - 0.4-5
-- Always buffer TCP data in __handle_recv()
-- Resolves: #1747144
-
-* Fri Oct 25 2019 Robbie Harwood <rharwood@redhat.com> - 0.4-4
-- Correct addrs sorting to be by TCP/UDP
-- Resolves: #1732898
-
-* Mon Nov 19 2018 Thomas Woerner <twoerner@redhat.com> - 0.4-3
-- Bump release to be able to add python-kdcpoxy to the idm module
-  Resolves: RHBZ#1639332
-
-* Thu Aug 09 2018 Robbie Harwood <rharwood@redhat.com> - 0.4-2
-- Update dependencies in test suite
-
-* Thu Aug 09 2018 Robbie Harwood <rharwood@redhat.com> - 0.4-1
-- New upstream release - 0.4
-- Port to autosetup
-
-* Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-14
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
-
-* Tue Jun 19 2018 Miro Hrončok <mhroncok@redhat.com> - 0.3.2-13
-- Rebuilt for Python 3.7
-
-* Thu Mar 22 2018 Troy Dawson <tdawson@redhat.com> - 0.3.2-12
-- Update conditionals.
-- Make preperations for non-python2 builds
-
-* Mon Feb 12 2018 Iryna Shcherbina <ishcherb@redhat.com> - 0.3.2-11
-- Update Python 2 dependency declarations to new packaging standards
-  (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
-
-* Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-10
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
-
-* Tue Sep 05 2017 Igor Gnatenko <ignatenko@redhat.com> - 0.3.2-9
-- Ignore test results
-
-* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-8
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
-
-* Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-7
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
-
-* Mon Jan 16 2017 Charalampos Stratakis <cstratak@redhat.com> - 0.3.2-6
-- Fix failing tests
-- Modernize the SPEC file
-
-* Mon Dec 19 2016 Miro Hrončok <mhroncok@redhat.com> - 0.3.2-5
-- Rebuild for Python 3.6
-- BR /usr/bin/tox instead of python-tox
-- Use %%{python3_version_nodots} instead of hardcoded 35
-
-* Tue Jul 19 2016 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3.2-4
-- https://fedoraproject.org/wiki/Changes/Automatic_Provides_for_Python_RPM_Packages
-
-* Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-3
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
-
-* Tue Nov 10 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3.2-2
-- Rebuilt for https://fedoraproject.org/wiki/Changes/python3.5
-
-* Mon Aug 03 2015 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.3.2-1
-- Update to 0.3.2
-- Fixes CVE-2015-5159
-
-* Wed Jul 22 2015 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.3.1-1
-- Update to 0.3.1
-
-* Thu Jun 18 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
-
-* Wed Jun 10 2015 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.3-1
-- Update to 0.3
-- Run tests in Fedora (not RHEL due to python-tox)
-
-* Fri Oct 24 2014 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.2.1-1
-- Update to 0.2.1
-
-* Thu Oct 23 2014 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.2-1
-- Update to 0.2
-- Fix EPEL7 build
-
-* Tue Jan 21 2014 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.1.1-1
-- Initial package

gating.yaml

@@ -0,0 +1,7 @@
+# recipients: abokovoy, frenaud, kaleem, ftrivino, cheimes
+--- !Policy
+product_versions:
+  - rhel-10
+decision_context: osci_compose_gate
+rules:
+  - !PassingTestCaseRule {test_case_name: osci.brew-build.tier0.functional}

plans/tests.fmf

@@ -0,0 +1,9 @@
+summary: Tests
+discover:
+    how: fmf
+    dist-git-source: true
+prepare:
+    how: feature
+    crb: enabled
+execute:
+    how: tmt

python-kdcproxy.spec

@@ -0,0 +1,233 @@
+%global realname kdcproxy
+
+Name:           python-%{realname}
+Version:        1.1.0
+Release:        1%{?dist}
+Summary:        MS-KKDCP (kerberos proxy) WSGI module
+
+License:        MIT
+URL:            https://github.com/latchset/%{realname}
+Source0:        https://github.com/latchset/%{realname}/releases/download/v%{version}/%{realname}-%{version}.tar.gz
+Source1:        https://github.com/latchset/%{realname}/releases/download/v%{version}/%{realname}-%{version}.tar.gz.sha512sum.txt
+
+# Patches
+
+BuildArch:      noarch
+
+BuildRequires:  git-core
+BuildRequires:  python3-pytest
+
+%generate_buildrequires
+%pyproject_buildrequires
+
+%global _description %{expand:
+This package contains a Python WSGI module for proxying KDC requests over
+HTTP by following the MS-KKDCP protocol. It aims to be simple to deploy, with
+minimal configuration.
+}
+
+%description %{_description}
+
+%package -n python3-%{realname}
+Summary:        MS-KKDCP (kerberos proxy) WSGI module
+Requires:       python3-dns
+Requires:       python3-pyasn1
+
+%{?python_provide:%python_provide python3-%{realname}}
+
+%description -n python3-%{realname} %{_description}
+
+%prep
+%autosetup -S git_am -n %{realname}-%{version}
+
+%build
+%pyproject_wheel
+
+%install
+%pyproject_install
+%pyproject_save_files %{realname}
+
+%check
+%pyproject_check_import
+%pytest
+
+%files -n python%{python3_pkgversion}-%{realname} -f %{pyproject_files}
+%doc README
+%license COPYING
+
+%changelog
+* Wed Nov 19 2025 Julien Rische <jrische@redhat.com> - 1.1.0-1
+- New upstream version (1.1.0)
+- Use DNS discovery for declared realms only (CVE-2025-59088)
+  Resolves: RHEL-113652
+- Fix DoS vulnerability based on unbounded TCP buffering (CVE-2025-59089)
+  Resolves: RHEL-113656
+
+* Fri Nov 22 2024 Julien Rische <jrische@redhat.com> - 1.0.0-18
+- Log KDC timeout only once per request
+  Resolves: RHEL-68354
+
+* Tue Oct 29 2024 Troy Dawson <tdawson@redhat.com> - 1.0.0-17
+- Bump release for October 2024 mass rebuild:
+  Resolves: RHEL-64018
+
+* Mon Jun 24 2024 Troy Dawson <tdawson@redhat.com> - 1.0.0-16
+- Bump release for June 2024 mass rebuild
+
+* Fri Jan 26 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-15
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Mon Jan 22 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-14
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
+
+* Fri Jul 21 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
+
+* Thu Jun 15 2023 Python Maint <python-maint@redhat.com> - 1.0.0-12
+- Rebuilt for Python 3.12
+
+* Fri Jan 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-11
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
+
+* Fri Jul 22 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
+
+* Tue Jun 14 2022 Python Maint <python-maint@redhat.com> - 1.0.0-9
+- Rebuilt for Python 3.11
+
+* Fri Jan 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
+
+* Fri Jul 23 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
+
+* Fri Jun 04 2021 Python Maint <python-maint@redhat.com> - 1.0.0-6
+- Rebuilt for Python 3.10
+
+* Thu Apr 08 2021 Robbie Harwood <rharwood@redhat.com> - 1.0.0-5
+- Actually drop coverage dependency
+
+* Fri Jan 29 2021 Robbie Harwood <rharwood@redhat.com> - 1.0.0-4
+- Drop unused dependency on python3-mock
+- Resolves: #1922344
+
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.0-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
+* Wed Jan 20 2021 Robbie Harwood <rharwood@redhat.com> - 1.0.0-2
+- Drop coverage from tests
+- Resolves: #1916739
+
+* Tue Dec 08 2020 Robbie Harwood <rharwood@redhat.com> - 1.0.0-1
+- New upstream version (1.0.0)
+- Drop asn1crypto in favor of pyasn1
+
+* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.2-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Thu Jun 25 2020 Robbie Harwood <rharwood@redhat.com> - 0.4.2-5
+- Explicitly depend on python3-setuptools
+
+* Tue May 26 2020 Miro Hrončok <mhroncok@redhat.com> - 0.4.2-4
+- Rebuilt for Python 3.9
+
+* Thu Jan 30 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.2-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Thu Oct 03 2019 Miro Hrončok <mhroncok@redhat.com> - 0.4.2-2
+- Rebuilt for Python 3.8.0rc1 (#1748018)
+
+* Thu Aug 29 2019 Robbie Harwood <rharwood@redhat.com> - 0.4.2-1
+- New upstream version (0.4.2)
+
+* Mon Aug 19 2019 Miro Hrončok <mhroncok@redhat.com> - 0.4.1-3
+- Rebuilt for Python 3.8
+
+* Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.1-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Mon Feb 11 2019 Robbie Harwood <rharwood@redhdat.com> 0.4.1-1
+- New upstream release - 0.4.1
+- Fixes build with rawhide (dnspython/dnspython3)
+
+* Sat Feb 02 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.4-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild
+
+* Mon Sep 17 2018 Robbie Harwood <rharwood@redhat.com> - 0.4-3
+- Drop python2 subpackage
+- Resolves: #1629775
+
+* Thu Aug 09 2018 Robbie Harwood <rharwood@redhat.com> - 0.4-2
+- Update dependencies in test suite
+
+* Thu Aug 09 2018 Robbie Harwood <rharwood@redhat.com> - 0.4-1
+- New upstream release - 0.4
+- Port to autosetup
+
+* Sat Jul 14 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-14
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
+* Tue Jun 19 2018 Miro Hrončok <mhroncok@redhat.com> - 0.3.2-13
+- Rebuilt for Python 3.7
+
+* Thu Mar 22 2018 Troy Dawson <tdawson@redhat.com> - 0.3.2-12
+- Update conditionals.
+- Make preperations for non-python2 builds
+
+* Mon Feb 12 2018 Iryna Shcherbina <ishcherb@redhat.com> - 0.3.2-11
+- Update Python 2 dependency declarations to new packaging standards
+  (See https://fedoraproject.org/wiki/FinalizingFedoraSwitchtoPython3)
+
+* Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-10
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
+
+* Tue Sep 05 2017 Igor Gnatenko <ignatenko@redhat.com> - 0.3.2-9
+- Ignore test results
+
+* Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-8
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
+
+* Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-7
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
+
+* Mon Jan 16 2017 Charalampos Stratakis <cstratak@redhat.com> - 0.3.2-6
+- Fix failing tests
+- Modernize the SPEC file
+
+* Mon Dec 19 2016 Miro Hrončok <mhroncok@redhat.com> - 0.3.2-5
+- Rebuild for Python 3.6
+- BR /usr/bin/tox instead of python-tox
+- Use %%{python3_version_nodots} instead of hardcoded 35
+
+* Tue Jul 19 2016 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3.2-4
+- https://fedoraproject.org/wiki/Changes/Automatic_Provides_for_Python_RPM_Packages
+
+* Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
+
+* Tue Nov 10 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3.2-2
+- Rebuilt for https://fedoraproject.org/wiki/Changes/python3.5
+
+* Mon Aug 03 2015 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.3.2-1
+- Update to 0.3.2
+- Fixes CVE-2015-5159
+
+* Wed Jul 22 2015 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.3.1-1
+- Update to 0.3.1
+
+* Thu Jun 18 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.3-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
+
+* Wed Jun 10 2015 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.3-1
+- Update to 0.3
+- Run tests in Fedora (not RHEL due to python-tox)
+
+* Fri Oct 24 2014 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.2.1-1
+- Update to 0.2.1
+
+* Thu Oct 23 2014 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.2-1
+- Update to 0.2
+- Fix EPEL7 build
+
+* Tue Jan 21 2014 Nathaniel McCallum <npmccallum@fedoraproject.org> - 0.1.1-1
+- Initial package

sources

@@ -0,0 +1,2 @@
+SHA512 (kdcproxy-1.1.0.tar.gz) = f03b9d40d71322281d0197df6fe6b5936a8d09b0fee49fc5375b61974d005cedc5645f92a223d221c05c6ffd2613a86eb7d7295c4ac27a2f2c9eaa10fa24c182
+SHA512 (kdcproxy-1.1.0.tar.gz.sha512sum.txt) = b08dae1d80ef1c3dd2ff9a5da6411255860c229bc5da46d8ed85b3998f1d417c0b783912320d7e0d780956c117ad4c77699e5d68a61c44853014a5f985301fbd

tests/unittests/main.fmf

@@ -0,0 +1,13 @@
+summary: Unit tests
+component:
+- python-kdcproxy
+require:
+- python3-kdcproxy
+- python3-pytest
+test: |
+  setuppy_path="$(find "$TMT_SOURCE_DIR" -type f -name setup.py)"
+  src_path="$(dirname "$setuppy_path")"
+  pushd "$src_path"
+  python3 -m pytest
+duration: 15m
+enabled: true