1 /* 2 * Copyright (c) 2012-2021 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 30 #ifndef _NET_IF_IPSEC_H_ 31 #define _NET_IF_IPSEC_H_ 32 33 #ifdef BSD_KERNEL_PRIVATE 34 35 #include <sys/kern_control.h> 36 #include <netinet/ip_var.h> 37 38 39 errno_t ipsec_register_control(void); 40 41 /* Helpers */ 42 int ipsec_interface_isvalid(ifnet_t interface); 43 #if SKYWALK 44 boolean_t ipsec_interface_needs_netagent(ifnet_t interface); 45 #endif /* SKYWALK */ 46 47 errno_t ipsec_inject_inbound_packet(ifnet_t interface, mbuf_t packet); 48 49 void ipsec_set_pkthdr_for_interface(ifnet_t interface, mbuf_t packet, int family, 50 uint32_t flowid); 51 52 void ipsec_set_ipoa_for_interface(ifnet_t interface, struct ip_out_args *ipoa); 53 54 struct ip6_out_args; 55 void ipsec_set_ip6oa_for_interface(ifnet_t interface, struct ip6_out_args *ip6oa); 56 57 #endif 58 59 /* 60 * Name registered by the ipsec kernel control 61 */ 62 #define IPSEC_CONTROL_NAME "com.apple.net.ipsec_control" 63 64 /* 65 * Socket option names to manage ipsec 66 */ 67 #define IPSEC_OPT_FLAGS 1 68 #define IPSEC_OPT_IFNAME 2 69 #define IPSEC_OPT_EXT_IFDATA_STATS 3 /* get|set (type int) */ 70 #define IPSEC_OPT_INC_IFDATA_STATS_IN 4 /* set to increment stat counters (type struct ipsec_stats_param) */ 71 #define IPSEC_OPT_INC_IFDATA_STATS_OUT 5 /* set to increment stat counters (type struct ipsec_stats_param) */ 72 #define IPSEC_OPT_SET_DELEGATE_INTERFACE 6 /* set the delegate interface (char[]) */ 73 #define IPSEC_OPT_OUTPUT_TRAFFIC_CLASS 7 /* set the traffic class for packets leaving the interface, see sys/socket.h */ 74 #define IPSEC_OPT_ENABLE_CHANNEL 8 /* enable a kernel pipe nexus that allows the owner to open a channel to act as a driver, 75 * Must be set before connecting */ 76 #define IPSEC_OPT_GET_CHANNEL_UUID 9 /* get the uuid of the kernel pipe nexus instance */ 77 #define IPSEC_OPT_ENABLE_FLOWSWITCH 10 /* enable a flowswitch nexus that clients can use */ 78 #define IPSEC_OPT_INPUT_FRAG_SIZE 11 /* set the maximum size of input packets before fragmenting as a uint32_t */ 79 80 #define IPSEC_OPT_ENABLE_NETIF 12 /* Must be set before connecting */ 81 #define IPSEC_OPT_SLOT_SIZE 13 /* Must be set before connecting */ 82 #define IPSEC_OPT_NETIF_RING_SIZE 14 /* Must be set before connecting */ 83 #define IPSEC_OPT_TX_FSW_RING_SIZE 15 /* Must be set before connecting */ 84 #define IPSEC_OPT_RX_FSW_RING_SIZE 16 /* Must be set before connecting */ 85 #define IPSEC_OPT_CHANNEL_BIND_PID 17 /* Must be set before connecting */ 86 #define IPSEC_OPT_KPIPE_TX_RING_SIZE 18 /* Must be set before connecting */ 87 #define IPSEC_OPT_KPIPE_RX_RING_SIZE 19 /* Must be set before connecting */ 88 #define IPSEC_OPT_CHANNEL_BIND_UUID 20 /* Must be set before connecting */ 89 90 #define IPSEC_OPT_OUTPUT_DSCP_MAPPING 21 /* Must be set before connecting */ 91 92 typedef enum { 93 IPSEC_DSCP_MAPPING_COPY = 0, /* Copy DSCP bits from inner IP header to outer IP header */ 94 IPSEC_DSCP_MAPPING_LEGACY = 1, /* Copies bits from the outer IP header that are at TOS offset of the inner IP header, into the DSCP of the outer IP header */ 95 } ipsec_dscp_mapping_t; 96 97 /* 98 * ipsec stats parameter structure 99 */ 100 struct ipsec_stats_param { 101 u_int64_t utsp_packets; 102 u_int64_t utsp_bytes; 103 u_int64_t utsp_errors; 104 }; 105 106 #endif 107