darlinghq/darling-xnu
1
0
Fork 0
mirror of https://github.com/darlinghq/darling-xnu.git synced 2024-11-23 12:39:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
main
darling-xnu/bsd/netinet6/ipsec.h
Thomas A cdbc10b677 Upload xnu-7195.141.2 Source
2023-05-16 21:41:14 -07:00

433 lines
16 KiB
C
Raw Permalink Blame History

/* $FreeBSD: src/sys/netinet6/ipsec.h,v 1.4.2.2 2001/07/03 11:01:54 ume Exp $ */
/* $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* IPsec controller part.
*/
#ifndef _NETINET6_IPSEC_H_
#define _NETINET6_IPSEC_H_
#include <sys/cdefs.h>
#include <sys/appleapiopts.h>
#include <net/pfkeyv2.h>
#include <uuid/uuid.h>
#ifdef BSD_KERNEL_PRIVATE
#include <netkey/keydb.h>
#include <netinet/ip_var.h>
#include <os/log.h>
/* lock for IPsec stats */
extern lck_grp_t *sadb_stat_mutex_grp;
extern lck_grp_attr_t *sadb_stat_mutex_grp_attr;
extern lck_attr_t *sadb_stat_mutex_attr;
extern lck_mtx_t *sadb_stat_mutex;
#define IPSEC_STAT_INCREMENT(x) \
OSIncrementAtomic64((SInt64 *)&x)
struct secpolicyaddrrange {
struct sockaddr_storage start; /* Start (low values) of address range */
struct sockaddr_storage end; /* End (high values) of address range */
};
/*
* Security Policy Index
* Ensure that both address families in the "src" and "dst" are same.
* When the value of the ul_proto is ICMPv6, the port field in "src"
* specifies ICMPv6 type, and the port field in "dst" specifies ICMPv6 code.
*/
struct secpolicyindex {
u_int8_t dir; /* direction of packet flow, see below */
struct sockaddr_storage src; /* IP src address for SP */
struct sockaddr_storage dst; /* IP dst address for SP */
u_int8_t prefs; /* prefix length in bits for src */
u_int8_t prefd; /* prefix length in bits for dst */
u_int8_t ul_proto; /* upper layer Protocol */
ifnet_t internal_if; /* Interface a matching packet is bound to */
struct secpolicyaddrrange src_range; /* IP src address range for SP */
struct secpolicyaddrrange dst_range; /* IP dst address range for SP */
#ifdef notyet
uid_t uids;
uid_t uidd;
gid_t gids;
gid_t gidd;
#endif
};
/* Security Policy Data Base */
struct secpolicy {
LIST_ENTRY(secpolicy) chain;
int refcnt; /* reference count */
struct secpolicyindex spidx; /* selector */
u_int32_t id; /* It's unique number on the system. */
u_int state; /* 0: dead, others: alive */
#define IPSEC_SPSTATE_DEAD 0
#define IPSEC_SPSTATE_ALIVE 1
u_int policy; /* DISCARD, NONE or IPSEC, see keyv2.h */
struct ipsecrequest *req;
/* pointer to the ipsec request tree, */
/* if policy == IPSEC else this value == NULL.*/
ifnet_t ipsec_if; /* IPsec interface to use */
ifnet_t outgoing_if; /* Outgoing interface for encrypted traffic */
char disabled; /* Set to ignore policy */
/*
* lifetime handler.
* the policy can be used without limitiation if both lifetime and
* validtime are zero.
* "lifetime" is passed by sadb_lifetime.sadb_lifetime_addtime.
* "validtime" is passed by sadb_lifetime.sadb_lifetime_usetime.
*/
long created; /* time created the policy */
long lastused; /* updated every when kernel sends a packet */
long lifetime; /* duration of the lifetime of this policy */
long validtime; /* duration this policy is valid without use */
};
/* Request for IPsec */
struct ipsecrequest {
struct ipsecrequest *next;
/* pointer to next structure */
/* If NULL, it means the end of chain. */
struct secasindex saidx;/* hint for search proper SA */
/* if __ss_len == 0 then no address specified.*/
u_int level; /* IPsec level defined below. */
struct secpolicy *sp; /* back pointer to SP */
};
/* security policy in PCB */
struct inpcbpolicy {
struct secpolicy *sp_in;
struct secpolicy *sp_out;
int priv; /* privileged socket ? */
};
/* SP acquiring list table. */
struct secspacq {
LIST_ENTRY(secspacq) chain;
struct secpolicyindex spidx;
long created; /* for lifetime */
int count; /* for lifetime */
/* XXX: here is mbuf place holder to be sent ? */
};
#endif /* BSD_KERNEL_PRIVATE */
/* according to IANA assignment, port 0x0000 and proto 0xff are reserved. */
#define IPSEC_PORT_ANY 0
#define IPSEC_ULPROTO_ANY 255
#define IPSEC_PROTO_ANY 255
/* mode of security protocol */
/* NOTE: DON'T use IPSEC_MODE_ANY at SPD. It's only use in SAD */
#define IPSEC_MODE_ANY 0 /* i.e. wildcard. */
#define IPSEC_MODE_TRANSPORT 1
#define IPSEC_MODE_TUNNEL 2
/*
* Direction of security policy.
* NOTE: Since INVALID is used just as flag.
* The other are used for loop counter too.
*/
#define IPSEC_DIR_ANY 0
#define IPSEC_DIR_INBOUND 1
#define IPSEC_DIR_OUTBOUND 2
#define IPSEC_DIR_MAX 3
#define IPSEC_DIR_INVALID 4
/* Policy level */
/*
* IPSEC, ENTRUST and BYPASS are allowed for setsockopt() in PCB,
* DISCARD, IPSEC and NONE are allowed for setkey() in SPD.
* DISCARD and NONE are allowed for system default.
*/
#define IPSEC_POLICY_DISCARD 0 /* discarding packet */
#define IPSEC_POLICY_NONE 1 /* through IPsec engine */
#define IPSEC_POLICY_IPSEC 2 /* do IPsec */
#define IPSEC_POLICY_ENTRUST 3 /* consulting SPD if present. */
#define IPSEC_POLICY_BYPASS 4 /* only for privileged socket. */
#define IPSEC_POLICY_GENERATE 5 /* same as discard - IKE daemon can override with generated policy */
/* Security protocol level */
#define IPSEC_LEVEL_DEFAULT 0 /* reference to system default */
#define IPSEC_LEVEL_USE 1 /* use SA if present. */
#define IPSEC_LEVEL_REQUIRE 2 /* require SA. */
#define IPSEC_LEVEL_UNIQUE 3 /* unique SA. */
#define IPSEC_MANUAL_REQID_MAX 0x3fff
/*
* if security policy level == unique, this id
* indicate to a relative SA for use, else is
* zero.
* 1 - 0x3fff are reserved for manual keying.
* 0 are reserved for above reason. Others is
* for kernel use.
* Note that this id doesn't identify SA
* by only itself.
*/
#define IPSEC_REPLAYWSIZE 32
/* statistics for ipsec processing */
struct ipsecstat {
u_quad_t in_success __attribute__ ((aligned(8))); /* succeeded inbound process */
u_quad_t in_polvio __attribute__ ((aligned(8)));
/* security policy violation for inbound process */
u_quad_t in_nosa __attribute__ ((aligned(8))); /* inbound SA is unavailable */
u_quad_t in_inval __attribute__ ((aligned(8))); /* inbound processing failed due to EINVAL */
u_quad_t in_nomem __attribute__ ((aligned(8))); /* inbound processing failed due to ENOBUFS */
u_quad_t in_badspi __attribute__ ((aligned(8))); /* failed getting a SPI */
u_quad_t in_ahreplay __attribute__ ((aligned(8))); /* AH replay check failed */
u_quad_t in_espreplay __attribute__ ((aligned(8))); /* ESP replay check failed */
u_quad_t in_ahauthsucc __attribute__ ((aligned(8))); /* AH authentication success */
u_quad_t in_ahauthfail __attribute__ ((aligned(8))); /* AH authentication failure */
u_quad_t in_espauthsucc __attribute__ ((aligned(8))); /* ESP authentication success */
u_quad_t in_espauthfail __attribute__ ((aligned(8))); /* ESP authentication failure */
u_quad_t in_esphist[256] __attribute__ ((aligned(8)));
u_quad_t in_ahhist[256] __attribute__ ((aligned(8)));
u_quad_t in_comphist[256] __attribute__ ((aligned(8)));
u_quad_t out_success __attribute__ ((aligned(8))); /* succeeded outbound process */
u_quad_t out_polvio __attribute__ ((aligned(8)));
/* security policy violation for outbound process */
u_quad_t out_nosa __attribute__ ((aligned(8))); /* outbound SA is unavailable */
u_quad_t out_inval __attribute__ ((aligned(8))); /* outbound process failed due to EINVAL */
u_quad_t out_nomem __attribute__ ((aligned(8))); /* inbound processing failed due to ENOBUFS */
u_quad_t out_noroute __attribute__ ((aligned(8))); /* there is no route */
u_quad_t out_esphist[256] __attribute__ ((aligned(8)));
u_quad_t out_ahhist[256] __attribute__ ((aligned(8)));
u_quad_t out_comphist[256] __attribute__ ((aligned(8)));
};
#define IPSEC_MAX_WAKE_PKT_LEN 100
struct ipsec_wake_pkt_info {
u_int8_t wake_pkt[IPSEC_MAX_WAKE_PKT_LEN];
uuid_string_t wake_uuid;
u_int32_t wake_pkt_spi;
u_int32_t wake_pkt_seq;
u_int16_t wake_pkt_len;
};
struct ipsec_wake_pkt_event_data {
uuid_string_t wake_uuid;
};
#ifdef BSD_KERNEL_PRIVATE
/*
* Definitions for IPsec & Key sysctl operations.
*/
/*
* Names for IPsec & Key sysctl objects
*/
#define IPSECCTL_STATS 1 /* stats */
#define IPSECCTL_DEF_POLICY 2
#define IPSECCTL_DEF_ESP_TRANSLEV 3 /* int; ESP transport mode */
#define IPSECCTL_DEF_ESP_NETLEV 4 /* int; ESP tunnel mode */
#define IPSECCTL_DEF_AH_TRANSLEV 5 /* int; AH transport mode */
#define IPSECCTL_DEF_AH_NETLEV 6 /* int; AH tunnel mode */
#if 0 /* obsolete, do not reuse */
#define IPSECCTL_INBOUND_CALL_IKE 7
#endif
#define IPSECCTL_AH_CLEARTOS 8
#define IPSECCTL_AH_OFFSETMASK 9
#define IPSECCTL_DFBIT 10
#define IPSECCTL_ECN 11
#define IPSECCTL_DEBUG 12
#define IPSECCTL_ESP_RANDPAD 13
#define IPSECCTL_MAXID 14
#define IPSECCTL_NAMES { \
{ 0, 0 }, \
{ 0, 0 }, \
{ "def_policy", CTLTYPE_INT }, \
{ "esp_trans_deflev", CTLTYPE_INT }, \
{ "esp_net_deflev", CTLTYPE_INT }, \
{ "ah_trans_deflev", CTLTYPE_INT }, \
{ "ah_net_deflev", CTLTYPE_INT }, \
{ 0, 0 }, \
{ "ah_cleartos", CTLTYPE_INT }, \
{ "ah_offsetmask", CTLTYPE_INT }, \
{ "dfbit", CTLTYPE_INT }, \
{ "ecn", CTLTYPE_INT }, \
{ "debug", CTLTYPE_INT }, \
{ "esp_randpad", CTLTYPE_INT }, \
}
#define IPSEC6CTL_NAMES { \
{ 0, 0 }, \
{ 0, 0 }, \
{ "def_policy", CTLTYPE_INT }, \
{ "esp_trans_deflev", CTLTYPE_INT }, \
{ "esp_net_deflev", CTLTYPE_INT }, \
{ "ah_trans_deflev", CTLTYPE_INT }, \
{ "ah_net_deflev", CTLTYPE_INT }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ 0, 0 }, \
{ "ecn", CTLTYPE_INT }, \
{ "debug", CTLTYPE_INT }, \
{ "esp_randpad", CTLTYPE_INT }, \
}
#if defined(__ARM__)
#define IPSEC_IS_P2ALIGNED(p) IS_P2ALIGNED(p, sizeof (u_int32_t))
#define IPSEC_GET_P2UNALIGNED_OFS(p) (sizeof(u_int32_t) - (((uintptr_t)(p)) & ((uintptr_t)(sizeof(u_int32_t)) - 1)))
#else
#define IPSEC_IS_P2ALIGNED(p) 1
#define IPSEC_GET_P2UNALIGNED_OFS(p) 0
#endif
struct ipsec_output_state {
int tunneled;
struct mbuf *m;
struct route_in6 ro;
struct sockaddr *dst;
u_int outgoing_if;
};
struct ipsec_history {
int ih_proto;
u_int32_t ih_spi;
};
extern int ipsec_debug;
extern struct ipsecstat ipsecstat;
extern struct secpolicy ip4_def_policy;
extern int ip4_esp_trans_deflev;
extern int ip4_esp_net_deflev;
extern int ip4_ah_trans_deflev;
extern int ip4_ah_net_deflev;
extern int ip4_ah_cleartos;
extern int ip4_ah_offsetmask;
extern int ip4_ipsec_dfbit;
extern int ip4_ipsec_ecn;
extern int ip4_esp_randpad;
extern bool ipsec_save_wake_pkt;
#define _ipsec_log(level, fmt, ...) do { \
os_log_type_t type; \
switch (level) { \
default: \
type = OS_LOG_TYPE_DEFAULT; \
break; \
case LOG_INFO: \
type = OS_LOG_TYPE_INFO; \
break; \
case LOG_DEBUG: \
type = OS_LOG_TYPE_DEBUG; \
break; \
case LOG_ERR: \
type = OS_LOG_TYPE_ERROR; \
break; \
} \
os_log_with_type(OS_LOG_DEFAULT, type, fmt, ##__VA_ARGS__); \
} while (0)
#define ipseclog(x) do { if (ipsec_debug != 0) _ipsec_log x; } while (0)
extern struct secpolicy *ipsec4_getpolicybysock(struct mbuf *, u_int8_t,
struct socket *, int *);
extern struct secpolicy *ipsec4_getpolicybyaddr(struct mbuf *, u_int8_t, int,
int *);
extern int ipsec4_getpolicybyinterface(struct mbuf *, u_int8_t, int *,
struct ip_out_args *, struct secpolicy **);
extern u_int ipsec_get_reqlevel(struct ipsecrequest *);
struct inpcb;
extern int ipsec_init_policy(struct socket *so, struct inpcbpolicy **);
extern int ipsec_copy_policy(struct inpcbpolicy *, struct inpcbpolicy *);
extern u_int ipsec_get_reqlevel(struct ipsecrequest *);
extern int ipsec4_set_policy(struct inpcb *inp, int optname,
caddr_t request, size_t len, int priv);
extern int ipsec4_delete_pcbpolicy(struct inpcb *);
extern int ipsec4_in_reject_so(struct mbuf *, struct socket *);
extern int ipsec4_in_reject(struct mbuf *, struct inpcb *);
struct secas;
struct tcpcb;
extern int ipsec_chkreplay(u_int32_t, struct secasvar *, u_int8_t);
extern int ipsec_updatereplay(u_int32_t, struct secasvar *, u_int8_t);
extern size_t ipsec4_hdrsiz(struct mbuf *, u_int8_t, struct inpcb *);
extern size_t ipsec_hdrsiz_tcp(struct tcpcb *);
extern size_t ipsec_hdrsiz(struct secpolicy *);
struct ip;
extern const char *ipsec4_logpacketstr(struct ip *, u_int32_t);
extern const char *ipsec_logsastr(struct secasvar *);
extern void ipsec_dumpmbuf(struct mbuf *);
extern int ipsec4_interface_output(struct ipsec_output_state *state, ifnet_t interface);
extern int ipsec4_output(struct ipsec_output_state *, struct secpolicy *, int);
#if INET
extern struct mbuf * ipsec4_splithdr(struct mbuf *);
extern int ipsec4_encapsulate(struct mbuf *, struct secasvar *);
#endif
extern struct mbuf * ipsec6_splithdr(struct mbuf *);
extern int ipsec6_encapsulate(struct mbuf *, struct secasvar *);
extern int ipsec4_tunnel_validate(struct mbuf *, int, u_int, struct secasvar *, sa_family_t *);
extern struct mbuf *ipsec_copypkt(struct mbuf *);
extern void ipsec_delaux(struct mbuf *);
extern int ipsec_setsocket(struct mbuf *, struct socket *);
extern struct socket *ipsec_getsocket(struct mbuf *);
extern int ipsec_addhist(struct mbuf *, int, u_int32_t);
extern struct ipsec_history *ipsec_gethist(struct mbuf *, int *);
extern void ipsec_clearhist(struct mbuf *);
extern void ipsec_monitor_sleep_wake(void);
extern void ipsec_save_wake_packet(struct mbuf *, u_int32_t, u_int32_t);
#endif /* BSD_KERNEL_PRIVATE */
#ifndef KERNEL
__BEGIN_DECLS
extern caddr_t ipsec_set_policy(char *, int);
extern int ipsec_get_policylen(caddr_t);
extern char *ipsec_dump_policy(caddr_t, char *);
extern const char *ipsec_strerror(void);
__END_DECLS
#endif /* KERNEL */
#endif /* _NETINET6_IPSEC_H_ */
Reference in New Issue View Git Blame Copy Permalink