xnu-3247.1.106.tar.gz

[apple/xnu.git] / bsd / net / if_utun.h

diff --git a/bsd/net/if_utun.h b/bsd/net/if_utun.h
index a5dc22cfe51bcd7810aaae5e2cc7ccc71bfb883e..2ffd72ee195719af7b3869d8c9676a2ff91e85a7 100644 (file)
--- a/bsd/net/if_utun.h
+++ b/bsd/net/if_utun.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2008-2013 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -30,22 +30,79 @@
 #ifndef        _NET_IF_UTUN_H_
 #define        _NET_IF_UTUN_H_
 
+#ifdef PRIVATE
+#include <net/if_utun_crypto.h>
+#endif /* PRIVATE */
+
 #ifdef KERNEL_PRIVATE
 
+#include <sys/kern_control.h>
+
+/* Control block allocated for each kernel control connection */
+struct utun_pcb {
+       kern_ctl_ref    utun_ctlref;
+       ifnet_t                 utun_ifp;
+       u_int32_t               utun_unit;
+       u_int32_t               utun_flags;
+       int                             utun_ext_ifdata_stats;
+       u_int32_t               utun_max_pending_packets;
+       utun_crypto_ctx_t utun_crypto_ctx[UTUN_CRYPTO_CTX_NUM_DIRS];
+};
+
+void* utun_alloc(size_t size);
+void utun_free(void *ptr);
 errno_t utun_register_control(void);
 
 #endif
 
+/*
+ * Name registered by the utun kernel control
+ */
+#define UTUN_CONTROL_NAME "com.apple.net.utun_control"
+
+/*
+ * Socket option names to manage utun
+ */
+#define UTUN_OPT_FLAGS                                                 1
+#define UTUN_OPT_IFNAME                                                        2
+#define UTUN_OPT_EXT_IFDATA_STATS                              3       /* get|set (type int) */
+#define UTUN_OPT_INC_IFDATA_STATS_IN                   4       /* set to increment stat counters (type struct utun_stats_param) */ 
+#define UTUN_OPT_INC_IFDATA_STATS_OUT                  5       /* set to increment stat counters (type struct utun_stats_param) */ 
+
 #ifdef PRIVATE
+#define UTUN_OPT_ENABLE_CRYPTO                                 6
+#define UTUN_OPT_CONFIG_CRYPTO_KEYS                            7
+#define UTUN_OPT_UNCONFIG_CRYPTO_KEYS                  8
+#define UTUN_OPT_GENERATE_CRYPTO_KEYS_IDX              9
+#define UTUN_OPT_DISABLE_CRYPTO                                        10
+#define UTUN_OPT_STOP_CRYPTO_DATA_TRAFFIC              11
+#define UTUN_OPT_START_CRYPTO_DATA_TRAFFIC             12
+#define UTUN_OPT_CONFIG_CRYPTO_FRAMER                  13
+#define UTUN_OPT_UNCONFIG_CRYPTO_FRAMER                        14
+#endif /* PRIVATE */
 
-#define UTUN_CONTROL_NAME "com.apple.net.utun_control"
-#define UTUN_OPT_FLAGS                 1
-#define UTUN_OPT_IFNAME                        2
+#define UTUN_OPT_SET_DELEGATE_INTERFACE                        15      /* set the delegate interface (char[]) */
+#define UTUN_OPT_MAX_PENDING_PACKETS                   16      /* the number of packets that can be waiting to be read
+                                                                                                                       from the control socket at a time */
+
+/*
+ * Flags for by UTUN_OPT_FLAGS 
+ */
+#define        UTUN_FLAGS_NO_OUTPUT            0x0001
+#define UTUN_FLAGS_NO_INPUT                    0x0002
 
-enum {
-       UTUN_FLAGS_NO_OUTPUT = 0x1,
-       UTUN_FLAGS_NO_INPUT = 0x2,
+#ifdef PRIVATE
+#define UTUN_FLAGS_CRYPTO                      0x0004
+#define UTUN_FLAGS_CRYPTO_STOP_DATA_TRAFFIC    0x0008
+#endif /* PRIVATE */
+
+/*
+ * utun stats parameter structure
+ */
+struct utun_stats_param {
+        u_int64_t       utsp_packets;
+        u_int64_t       utsp_bytes;
+        u_int64_t       utsp_errors;
 };
 
 #endif
-#endif