bsd/net/if_utun_crypto_dtls.h

   1 /*
   2  * Copyright (c) 2012 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _NET_IF_UTUN_CRYPTO_DTLS_H_
  30 #define _NET_IF_UTUN_CRYPTO_DTLS_H_
  31
  32 #define UTUN_CRYPTO_DTLS_HANDLE_INVALID -1
  33
  34 #ifdef KERNEL_PRIVATE
  35
  36 #include <sys/systm.h>
  37 #include <sys/socket.h>
  38 #include <net/if.h>
  39 #include <net/if_types.h>
  40 #include <sys/mbuf.h>
  41 #include <netinet/in.h>
  42 #include <netinet6/in6_var.h>
  43 #include <netinet6/in6_var.h>
  44 #include <netinet/ip.h>
  45 #include <netinet/ip6.h>
  46 #include <netinet/ip_var.h>
  47 #include <net/if_utun.h>
  48 #include <net/if_utun_crypto.h>
  49 #include <sys/kernel_types.h>
  50 #include <net/kpi_interface.h>
  51
  52 #define utun_cleanup_all_crypto_dtls(pcb) utun_ctl_disable_crypto_dtls(pcb)
  53
  54 /*
  55  * Summary: initializes global vars needed for any utun crypto based on dtls
  56  */
  57 void
  58 utun_ctl_init_crypto_dtls(void);
  59
  60 errno_t
  61 utun_ctl_register_dtls (utun_crypto_kpi_reg_t *reg);
  62
  63 /*
  64  * Summary: disables all crypto DTLS in one shot
  65  */
  66 void
  67 utun_cleanup_all_crypto_dtls (struct utun_pcb   *pcb);
  68
  69 /*
  70  * Summary: enables dtls crypto info for the specified utun. dtls ref is passed into args.
  71  */
  72 void
  73 utun_ctl_enable_crypto_dtls(struct utun_pcb   *pcb, utun_crypto_args_t *args);
  74
  75 /*
  76  * Summary: disables ipsec crypto info for the specified utun.
  77  */
  78 void
  79 utun_ctl_disable_crypto_dtls(struct utun_pcb   *pcb);
  80
  81 int
  82 utun_ctl_config_crypto_dtls_framer(utun_crypto_ctx_t *crypto_ctx, utun_crypto_framer_args_t *args);
  83
  84 int
  85 utun_ctl_unconfig_crypto_dtls_framer(utun_crypto_ctx_t *crypto_ctx, utun_crypto_framer_args_t *args);
  86
  87 /*
  88  * Summary: enables handling of data traffic
  89  */
  90 void
  91 utun_ctl_start_datatraffic_crypto_dtls(struct utun_pcb   *pcb);
  92
  93 /*
  94  * Summary: disables handling of data traffic
  95  */
  96 void
  97 utun_ctl_stop_datatraffic_crypto_dtls(struct utun_pcb   *pcb);
  98
  99 int
 100 utun_pkt_dtls_output(struct utun_pcb *pcb, mbuf_t *pkt);
 101
 102 int
 103 utun_pkt_dtls_input(struct utun_pcb *pcb, mbuf_t *pkt, protocol_family_t family);
 104
 105 static inline protocol_family_t
 106 utun_crypto_framer_inner_type_to_protocol_family (utun_crypto_framer_inner_type_t type)
 107 {
 108         if (type == UTUN_CRYPTO_INNER_TYPE_IPv4) {
 109                 return PF_INET;
 110         } else {
 111                 return PF_INET6;
 112         }
 113 }
 114
 115 static inline utun_crypto_framer_inner_type_t
 116 utun_crypto_framer_protocol_family_to_inner_type (protocol_family_t family)
 117 {
 118         if (family == PF_INET) {
 119                 return UTUN_CRYPTO_INNER_TYPE_IPv4;
 120         } else {
 121                 return UTUN_CRYPTO_INNER_TYPE_IPv6;
 122         }
 123 }
 124
 125 #endif // KERNEL_PRIVATE
 126
 127 #endif // _NET_IF_UTUN_CRYPTO_DTLS_H_