3 files changed, 23 insertions, 0 deletions

diff --git a/src/include/gnunet_connection_lib.h b/src/include/gnunet_connection_lib.h
index 33afb0386..8d2dbb611 100644
--- a/src/include/gnunet_connection_lib.h
+++ b/src/include/gnunet_connection_lib.h
@@ -53,15 +53,34 @@ struct GNUNET_CONNECTION_Handle;
 
 
 /**
+ * Credentials for UNIX domain sockets.
+ */
+struct GNUNET_CONNECTION_Credentials
+{
+  /**
+   * UID of the other end of the connection.
+   */
+  uid_t uid;
+
+  /**
+   * GID of the other end of the connection.
+   */
+  gid_t gid;
+};
+
+
+/**
  * Function to call for access control checks.
  *
  * @param cls closure
+ * @param ucred credentials, if available, otherwise NULL
  * @param addr address
  * @param addrlen length of address
  * @return GNUNET_YES to allow, GNUNET_NO to deny, GNUNET_SYSERR
  *   for unknown address family (will be denied).
  */
 typedef int (*GNUNET_CONNECTION_AccessCheck) (void *cls,
+                                              const struct GNUNET_CONNECTION_Credentials *ucred,
                                            const struct sockaddr * addr,
                                            socklen_t addrlen);
 
diff --git a/src/include/gnunet_network_lib.h b/src/include/gnunet_network_lib.h
index 73303689a..34cb7bc32 100644
--- a/src/include/gnunet_network_lib.h
+++ b/src/include/gnunet_network_lib.h
@@ -309,6 +309,7 @@ void GNUNET_NETWORK_fdset_add (struct GNUNET_NETWORK_FDSet *dst,
 void GNUNET_NETWORK_fdset_copy (struct GNUNET_NETWORK_FDSet *to,
                                 const struct GNUNET_NETWORK_FDSet *from);
 
+
 /**
  * Return file descriptor for this network handle
  *
diff --git a/src/include/platform.h b/src/include/platform.h
index cc2aa03ae..230031307 100644
--- a/src/include/platform.h
+++ b/src/include/platform.h
@@ -156,6 +156,9 @@
 #include <sys/loadavg.h>
 #include <semaphore.h>
 #endif
+#if HAVE_UCRED_H
+#include <ucred.h>
+#endif
 #ifdef CYGWIN
 #include <windows.h>
 #include <cygwin/if.h>