Attachment 106338 Details for Bug 69702 – Add NetBSD to the list of platforms where credentials-passing a pid should work

[patch] Add NetBSD to the list of platforms where credentials-passing a pid should work

0002-Implement-NetBSD-credentials-passing-with-LOCAL_PEER.patch (text/plain), 6.66 KB, created by Simon McVittie on 2014-09-15 17:40:44 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Simon McVittie

Created: 2014-09-15 17:40:44 UTC

Size: 6.66 KB

patch

obsolete

>From 853f701636ecb43cf656ab2da4625aaa5c7c0f5b Mon Sep 17 00:00:00 2001
>From: Patrick Welche <prlw1@cam.ac.uk>
>Date: Tue, 29 Jul 2014 14:08:20 +0100
>Subject: [PATCH 2/4] Implement NetBSD credentials-passing with LOCAL_PEEREID
>
>Bug: https://bugs.freedesktop.org/attachment.cgi?id=99398
>---
> bus/dispatch.c           |  5 +++++
> configure.ac             |  5 +++++
> dbus/dbus-auth.c         |  2 +-
> dbus/dbus-spawn.c        |  2 +-
> dbus/dbus-sysdeps-unix.c | 37 ++++++++++++++++++++++++++------
> test/dbus-daemon.c       | 55 ++++++++++++++++++++++++++++++++++++++++++++++++
> 6 files changed, 98 insertions(+), 8 deletions(-)
>
>diff --git a/bus/dispatch.c b/bus/dispatch.c
>index 7a61953..02b1883 100644
>--- a/bus/dispatch.c
>+++ b/bus/dispatch.c
>@@ -1310,6 +1310,11 @@ check_get_connection_unix_process_id (BusContext     *context,
> #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
>           defined(__linux__) || \
>           defined(__OpenBSD__)
>+          /* In principle NetBSD should also be in that list, but
>+           * its implementation of PID-passing doesn't work
>+           * over a socketpair() as used in the debug-pipe transport.
>+           * We test this functionality in a more realistic situation
>+           * in test/dbus-daemon.c. */
>           warn_unexpected (connection, message, "not this error");
> 
>           goto out;
>diff --git a/configure.ac b/configure.ac
>index 646c006..4de5c21 100644
>--- a/configure.ac
>+++ b/configure.ac
>@@ -818,6 +818,11 @@ if test x$dbus_have_struct_cmsgcred = xyes; then
>     AC_DEFINE(HAVE_CMSGCRED,1,[Have cmsgcred structure])
> fi
> 
>+AC_CHECK_MEMBER([struct unpcbid.unp_pid],
>+                [AC_DEFINE([HAVE_UNPCBID], 1, [Have unpcbid structure])],
>+                [],
>+                [[#include <sys/un.h>]])
>+
> AC_CHECK_FUNCS(getpeerucred getpeereid)
> 
> AC_CHECK_FUNCS(pipe2 accept4)
>diff --git a/dbus/dbus-auth.c b/dbus/dbus-auth.c
>index 6a07665..64ad2b0 100644
>--- a/dbus/dbus-auth.c
>+++ b/dbus/dbus-auth.c
>@@ -37,7 +37,7 @@
>  * @brief DBusAuth object
>  *
>  * DBusAuth manages the authentication negotiation when a connection
>- * is first established, and also manage any encryption used over a
>+ * is first established, and also manages any encryption used over a
>  * connection.
>  *
>  * @todo some SASL profiles require sending the empty string as a
>diff --git a/dbus/dbus-spawn.c b/dbus/dbus-spawn.c
>index b95cad6..3d1fbeb 100644
>--- a/dbus/dbus-spawn.c
>+++ b/dbus/dbus-spawn.c
>@@ -1017,7 +1017,7 @@ do_exec (int                       child_err_report_fd,
>       retval = fcntl (i, F_GETFD);
> 
>       if (retval != -1 && !(retval & FD_CLOEXEC))
>-	_dbus_warn ("Fd %d did not have the close-on-exec flag set!\n", i);
>+        _dbus_warn ("Fd %d did not have the close-on-exec flag set!\n", i);
>     }
> #endif
> 
>diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
>index a5090d4..e4398cd 100644
>--- a/dbus/dbus-sysdeps-unix.c
>+++ b/dbus/dbus-sysdeps-unix.c
>@@ -1741,16 +1741,41 @@ _dbus_read_credentials_socket  (int              client_fd,
> #endif
>     int cr_len = sizeof (cr);
> 
>-    if (getsockopt (client_fd, SOL_SOCKET, SO_PEERCRED, &cr, &cr_len) == 0 &&
>-	cr_len == sizeof (cr))
>+    if (getsockopt (client_fd, SOL_SOCKET, SO_PEERCRED, &cr, &cr_len) != 0)
>       {
>-	pid_read = cr.pid;
>-	uid_read = cr.uid;
>+        _dbus_verbose ("Failed to getsockopt(SO_PEERCRED): %s\n",
>+                       _dbus_strerror (errno));
>+      }
>+    else if (cr_len != sizeof (cr))
>+      {
>+        _dbus_verbose ("Failed to getsockopt(SO_PEERCRED), returned %d bytes, expected %d\n",
>+                       cr_len, (int) sizeof (cr));
>+      }
>+    else
>+      {
>+        pid_read = cr.pid;
>+        uid_read = cr.uid;
>+      }
>+#elif defined(HAVE_UNPCBID) && defined(LOCAL_PEEREID)
>+    /* Another variant of the above - used on NetBSD
>+     */
>+    struct unpcbid cr;
>+    socklen_t cr_len = sizeof (cr);
>+
>+    if (getsockopt (client_fd, 0, LOCAL_PEEREID, &cr, &cr_len) != 0)
>+      {
>+        _dbus_verbose ("Failed to getsockopt(LOCAL_PEEREID): %s\n",
>+                       _dbus_strerror (errno));
>+      }
>+    else if (cr_len != sizeof (cr))
>+      {
>+        _dbus_verbose ("Failed to getsockopt(LOCAL_PEEREID), returned %d bytes, expected %d\n",
>+                       cr_len, (int) sizeof (cr));
>       }
>     else
>       {
>-	_dbus_verbose ("Failed to getsockopt() credentials, returned len %d/%d: %s\n",
>-		       cr_len, (int) sizeof (cr), _dbus_strerror (errno));
>+        pid_read = cr.unp_pid;
>+        uid_read = cr.unp_euid;
>       }
> #elif defined(HAVE_CMSGCRED)
>     /* We only check for HAVE_CMSGCRED, but we're really assuming that the
>diff --git a/test/dbus-daemon.c b/test/dbus-daemon.c
>index 98a2ac5..d5a9617 100644
>--- a/test/dbus-daemon.c
>+++ b/test/dbus-daemon.c
>@@ -485,6 +485,60 @@ test_creds (Fixture *f,
> }
> 
> static void
>+test_processid (Fixture *f,
>+    gconstpointer context)
>+{
>+  const char *unique = dbus_bus_get_unique_name (f->left_conn);
>+  DBusMessage *m = dbus_message_new_method_call (DBUS_SERVICE_DBUS,
>+      DBUS_PATH_DBUS, DBUS_INTERFACE_DBUS, "GetConnectionUnixProcessID");
>+  DBusPendingCall *pc;
>+  DBusError error = DBUS_ERROR_INIT;
>+  guint32 pid;
>+
>+  if (m == NULL)
>+    g_error ("OOM");
>+
>+  if (!dbus_message_append_args (m,
>+        DBUS_TYPE_STRING, &unique,
>+        DBUS_TYPE_INVALID))
>+    g_error ("OOM");
>+
>+  if (!dbus_connection_send_with_reply (f->left_conn, m, &pc,
>+                                        DBUS_TIMEOUT_USE_DEFAULT) ||
>+      pc == NULL)
>+    g_error ("OOM");
>+
>+  dbus_message_unref (m);
>+  m = NULL;
>+
>+  if (dbus_pending_call_get_completed (pc))
>+    pending_call_store_reply (pc, &m);
>+  else if (!dbus_pending_call_set_notify (pc, pending_call_store_reply,
>+                                          &m, NULL))
>+    g_error ("OOM");
>+
>+  while (m == NULL)
>+    test_main_context_iterate (f->ctx, TRUE);
>+
>+  g_assert_cmpstr (dbus_message_get_signature (m), ==, "u");
>+
>+  g_assert_true (dbus_message_get_args (m, &error,
>+                                        DBUS_TYPE_UINT32, &pid,
>+                                        DBUS_TYPE_INVALID));
>+// g_assert_no_error (&error);
>+
>+  g_message ("GetConnectionUnixProcessID returned %u", pid);
>+
>+#ifdef G_OS_UNIX
>+  g_assert_cmpuint (pid, ==, getpid ());
>+#elif defined(G_OS_WIN32)
>+  g_assert_cmpuint (pid, ==, GetCurrentProcessId ());
>+#else
>+  g_assert_not_reached ();
>+#endif
>+}
>+
>+static void
> teardown (Fixture *f,
>     gconstpointer context G_GNUC_UNUSED)
> {
>@@ -541,6 +595,7 @@ main (int argc,
>   g_test_add ("/echo/limited", Fixture, &limited_config,
>       setup, test_echo, teardown);
>   g_test_add ("/creds", Fixture, NULL, setup, test_creds, teardown);
>+  g_test_add ("/processid", Fixture, NULL, setup, test_processid, teardown);
> 
>   return g_test_run ();
> }
>-- 
>2.1.0
>

Actions: View | Splinter Review

Attachments on bug 69702: 97249 | 99398 | 100403 | 102072 | 103645 | 106337 | 106338 | 106339 | 106340 | 108682

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.