/*
- * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
*/
#ifndef _NET_ROUTE_H_
-#define _NET_ROUTE_H_
+#define _NET_ROUTE_H_
#include <sys/appleapiopts.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/socket.h>
-/*
- * Kernel resident routing tables.
- *
- * The routing tables are initialized when interface addresses
- * are set by making entries for all directly connected interfaces.
- */
-
-/*
- * A route consists of a destination address and a reference
- * to a routing entry. These are often held by protocols
- * in their control blocks, e.g. inpcb.
- */
-#ifdef PRIVATE
-struct rtentry;
-struct route {
- /*
- * N.B: struct route must begin with ro_rt and ro_flags
- * because the code does some casts of a 'struct route_in6 *'
- * to a 'struct route *'.
- */
- struct rtentry *ro_rt;
- uint32_t ro_flags; /* route flags (see below) */
- struct sockaddr ro_dst;
-};
-
-#define ROF_SRCIF_SELECTED 0x1 /* source interface was selected */
-
-/*
- * Route reachability info (private)
- */
-struct rt_reach_info {
- u_int32_t ri_refcnt; /* reference count */
- u_int32_t ri_probes; /* total # of probes */
- u_int64_t ri_snd_expire; /* transmit expiration (calendar) time */
- u_int64_t ri_rcv_expire; /* receive expiration (calendar) time */
- int32_t ri_rssi; /* received signal strength */
- int32_t ri_lqm; /* link quality metric */
- int32_t ri_npm; /* node proximity metric */
-};
-#else
-struct route;
-#endif /* PRIVATE */
-
/*
* These numbers are used by reliable protocols for determining
* retransmission behavior and are included in the routing structure.
*/
struct rt_metrics {
- u_int32_t rmx_locks; /* Kernel must leave these values alone */
+ u_int32_t rmx_locks; /* Kernel leaves these values alone */
u_int32_t rmx_mtu; /* MTU for this path */
u_int32_t rmx_hopcount; /* max hops expected */
int32_t rmx_expire; /* lifetime for route, e.g. redirect */
*/
#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */
-#ifdef KERNEL_PRIVATE
+#ifdef PRIVATE
+struct route_old {
+ void *ro_rt;
+ uint32_t ro_flags;
+ struct sockaddr ro_dst;
+};
+#endif /* PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE
+#include <kern/locks.h>
+#include <net/radix.h>
+
/*
- * New expiry value (in seconds) when dealing with interfaces which implement
- * the if_want_aggressive_drain behavior. Otherwise the event mechanism wouldn't
- * fire quick enough to cause any sort of significant gains in performance.
+ * Kernel resident routing tables.
+ *
+ * The routing tables are initialized when interface addresses
+ * are set by making entries for all directly connected interfaces.
+ */
+
+/* forward declarations */
+struct ifnet_llreach_info;
+struct rt_reach_info;
+
+/*
+ * IP route structure
+ *
+ * A route consists of a destination address and a reference
+ * to a routing entry. These are often held by protocols
+ * in their control blocks, e.g. inpcb.
*/
-#define RT_IF_IDLE_EXPIRE_TIMEOUT 30
-#define RT_IF_IDLE_DRAIN_INTERVAL 10
-#endif /* KERNEL_PRIVATE */
+struct route {
+ /*
+ * N.B: struct route must begin with ro_{rt,srcia,flags}
+ * because the code does some casts of a 'struct route_in6 *'
+ * to a 'struct route *'.
+ */
+ struct rtentry *ro_rt;
+ struct ifaddr *ro_srcia;
+ uint32_t ro_flags; /* route flags (see below) */
+ struct sockaddr ro_dst;
+};
+
+#define ROF_SRCIF_SELECTED 0x1 /* source interface was selected */
+
+#define ROUTE_UNUSABLE(_ro) \
+ ((_ro)->ro_rt == NULL || \
+ ((_ro)->ro_rt->rt_flags & (RTF_UP|RTF_CONDEMNED)) != RTF_UP || \
+ RT_GENID_OUTOFSYNC((_ro)->ro_rt))
+
+#define _ROUTE_RELEASE_COMMON(_ro, _rnh_locked) do { \
+ if ((_ro)->ro_rt != NULL) { \
+ RT_LOCK_ASSERT_NOTHELD((_ro)->ro_rt); \
+ if (_rnh_locked) \
+ rtfree_locked((_ro)->ro_rt); \
+ else \
+ rtfree((_ro)->ro_rt); \
+ (_ro)->ro_rt = NULL; \
+ } \
+ if ((_ro)->ro_srcia != NULL) { \
+ IFA_REMREF((_ro)->ro_srcia); \
+ (_ro)->ro_srcia = NULL; \
+ (_ro)->ro_flags &= ~ROF_SRCIF_SELECTED; \
+ } \
+} while (0)
+
+#define ROUTE_RELEASE_LOCKED(_ro) _ROUTE_RELEASE_COMMON(_ro, TRUE)
+#define ROUTE_RELEASE(_ro) _ROUTE_RELEASE_COMMON(_ro, FALSE)
/*
* We distinguish between routes to hosts and routes to networks,
* gateways are marked so that the output routines know to address the
* gateway rather than the ultimate destination.
*/
-#ifdef KERNEL_PRIVATE
-#include <kern/locks.h>
-#ifndef RNF_NORMAL
-#include <net/radix.h>
-#endif
-struct ifnet_llreach_info; /* forward declaration */
+
/*
- * Kernel routing entry structure (private).
+ * Kernel routing entry structure.
*/
struct rtentry {
struct radix_node rt_nodes[2]; /* tree glue, and other values */
-#define rt_key(r) ((struct sockaddr *)(void *)((r)->rt_nodes->rn_key))
-#define rt_mask(r) ((struct sockaddr *)(void *)((r)->rt_nodes->rn_mask))
- struct sockaddr *rt_gateway; /* value */
- int32_t rt_refcnt; /* # held references */
- uint32_t rt_flags; /* up/down?, host/net */
- struct ifnet *rt_ifp; /* the answer: interface to use */
- struct ifaddr *rt_ifa; /* the answer: interface addr to use */
- struct sockaddr *rt_genmask; /* for generation of cloned routes */
- void *rt_llinfo; /* pointer to link level info cache */
- void (*rt_llinfo_get_ri) /* llinfo get reachability info fn */
- (struct rtentry *, struct rt_reach_info *);
- void (*rt_llinfo_get_iflri) /* ifnet llinfo get reach. info fn */
- (struct rtentry *, struct ifnet_llreach_info *);
- void (*rt_llinfo_purge)(struct rtentry *); /* llinfo purge fn */
- void (*rt_llinfo_free)(void *); /* link level info free function */
- struct rt_metrics rt_rmx; /* metrics used by rx'ing protocols */
- struct rtentry *rt_gwroute; /* implied entry for gatewayed routes */
- struct rtentry *rt_parent; /* cloning parent of this route */
- uint32_t generation_id; /* route generation id */
+#define rt_key(r) (SA((r)->rt_nodes->rn_key))
+#define rt_mask(r) (SA((r)->rt_nodes->rn_mask))
/*
* See bsd/net/route.c for synchronization notes.
*/
decl_lck_mtx_data(, rt_lock); /* lock for routing entry */
- struct nstat_counts *rt_stats;
- void (*rt_if_ref_fn)(struct ifnet *, int); /* interface ref func */
-
+ uint32_t rt_refcnt; /* # held references */
+ uint32_t rt_flags; /* up/down?, host/net */
+ uint32_t rt_genid; /* route generation id */
+ struct sockaddr *rt_gateway; /* value */
+ struct ifnet *rt_ifp; /* the answer: interface to use */
+ struct ifaddr *rt_ifa; /* the answer: interface addr to use */
+ struct sockaddr *rt_genmask; /* for generation of cloned routes */
+ void *rt_llinfo; /* pointer to link level info cache */
+ void (*rt_llinfo_get_ri) /* llinfo get reachability info fn */
+ (struct rtentry *, struct rt_reach_info *);
+ void (*rt_llinfo_get_iflri) /* ifnet llinfo get reach. info fn */
+ (struct rtentry *, struct ifnet_llreach_info *);
+ void (*rt_llinfo_purge)(struct rtentry *); /* llinfo purge fn */
+ void (*rt_llinfo_free)(void *); /* link level info free function */
+ struct rt_metrics rt_rmx; /* metrics used by rx'ing protocols */
+#define rt_use rt_rmx.rmx_pksent
+ struct rtentry *rt_gwroute; /* implied entry for gatewayed routes */
+ struct rtentry *rt_parent; /* cloning parent of this route */
+ struct nstat_counts *rt_stats; /* route stats */
+ void (*rt_if_ref_fn)(struct ifnet *, int); /* interface ref func */
+
+ uint32_t *rt_tree_genid; /* ptr to per-tree route_genid */
uint64_t rt_expire; /* expiration time in uptime seconds */
uint64_t base_calendartime; /* calendar time upon entry creation */
- uint64_t base_uptime;/* uptime upon entry creation */
+ uint64_t base_uptime; /* uptime upon entry creation */
};
-extern void rt_setexpire(struct rtentry *, uint64_t);
-#endif /* KERNEL_PRIVATE */
+/*
+ * Synchronize route entry's generation ID with the tree's.
+ */
+#define RT_GENID_SYNC(_rt) do { \
+ if ((_rt)->rt_tree_genid != NULL) \
+ (_rt)->rt_genid = *(_rt)->rt_tree_genid; \
+} while (0)
-#ifdef KERNEL_PRIVATE
-#define rt_use rt_rmx.rmx_pksent
-#endif /* KERNEL_PRIVATE */
+/*
+ * Indicates whether or not the route entry's generation ID is stale.
+ */
+#define RT_GENID_OUTOFSYNC(_rt) \
+ ((_rt)->rt_tree_genid != NULL && \
+ *(_rt)->rt_tree_genid != (_rt)->rt_genid)
+
+#endif /* BSD_KERNEL_PRIVATE */
#define RTF_UP 0x1 /* route usable */
#define RTF_GATEWAY 0x2 /* destination is a gateway */
#define RTF_REJECT 0x8 /* host or net unreachable */
#define RTF_DYNAMIC 0x10 /* created dynamically (by redirect) */
#define RTF_MODIFIED 0x20 /* modified dynamically (by redirect) */
-#define RTF_DONE 0x40 /* message confirmed */
-#define RTF_DELCLONE 0x80 /* delete cloned route */
-#define RTF_CLONING 0x100 /* generate new routes on use */
-#define RTF_XRESOLVE 0x200 /* external daemon resolves name */
-#define RTF_LLINFO 0x400 /* generated by link layer (e.g. ARP) */
-#define RTF_STATIC 0x800 /* manually added */
-#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */
-#define RTF_PROTO2 0x4000 /* protocol specific routing flag */
-#define RTF_PROTO1 0x8000 /* protocol specific routing flag */
-
-#define RTF_PRCLONING 0x10000 /* protocol requires cloning */
-#define RTF_WASCLONED 0x20000 /* route generated through cloning */
-#define RTF_PROTO3 0x40000 /* protocol specific routing flag */
+#define RTF_DONE 0x40 /* message confirmed */
+#define RTF_DELCLONE 0x80 /* delete cloned route */
+#define RTF_CLONING 0x100 /* generate new routes on use */
+#define RTF_XRESOLVE 0x200 /* external daemon resolves name */
+#define RTF_LLINFO 0x400 /* generated by link layer (e.g. ARP) */
+#define RTF_STATIC 0x800 /* manually added */
+#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */
+#define RTF_NOIFREF 0x2000 /* not eligible for RTF_IFREF */
+#define RTF_PROTO2 0x4000 /* protocol specific routing flag */
+#define RTF_PROTO1 0x8000 /* protocol specific routing flag */
+
+#define RTF_PRCLONING 0x10000 /* protocol requires cloning */
+#define RTF_WASCLONED 0x20000 /* route generated through cloning */
+#define RTF_PROTO3 0x40000 /* protocol specific routing flag */
/* 0x80000 unused */
-#define RTF_PINNED 0x100000 /* future use */
+#define RTF_PINNED 0x100000 /* future use */
#define RTF_LOCAL 0x200000 /* route represents a local address */
#define RTF_BROADCAST 0x400000 /* route represents a bcast address */
#define RTF_MULTICAST 0x800000 /* route represents a mcast address */
-#define RTF_IFSCOPE 0x1000000 /* has valid interface scope */
-#define RTF_CONDEMNED 0x2000000 /* defunct; no longer modifiable */
-#define RTF_IFREF 0x4000000 /* route holds a ref to interface */
+#define RTF_IFSCOPE 0x1000000 /* has valid interface scope */
+#define RTF_CONDEMNED 0x2000000 /* defunct; no longer modifiable */
+#define RTF_IFREF 0x4000000 /* route holds a ref to interface */
#define RTF_PROXY 0x8000000 /* proxying, no interface scope */
#define RTF_ROUTER 0x10000000 /* host is a router */
/* 0x20000000 and up unassigned */
+#define RTF_BITS \
+ "\020\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE" \
+ "\10DELCLONE\11CLONING\12XRESOLVE\13LLINFO\14STATIC\15BLACKHOLE" \
+ "\16NOIFREF\17PROTO2\20PROTO1\21PRCLONING\22WASCLONED\23PROTO3" \
+ "\25PINNED\26LOCAL\27BROADCAST\30MULTICAST\31IFSCOPE\32CONDEMNED" \
+ "\33IFREF\34PROXY\35ROUTER"
+
/*
* Routing statistics.
*/
* Structures for routing messages.
*/
struct rt_msghdr {
- u_short rtm_msglen; /* to skip over non-understood messages */
- u_char rtm_version; /* future binary compatibility */
- u_char rtm_type; /* message type */
- u_short rtm_index; /* index for associated ifp */
- int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
- int rtm_addrs; /* bitmask identifying sockaddrs in msg */
- pid_t rtm_pid; /* identify sender */
- int rtm_seq; /* for sender to identify action */
- int rtm_errno; /* why failed */
- int rtm_use; /* from rtentry */
- u_int32_t rtm_inits; /* which metrics we are initializing */
- struct rt_metrics rtm_rmx; /* metrics themselves */
+ u_short rtm_msglen; /* to skip over non-understood messages */
+ u_char rtm_version; /* future binary compatibility */
+ u_char rtm_type; /* message type */
+ u_short rtm_index; /* index for associated ifp */
+ int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
+ int rtm_addrs; /* bitmask identifying sockaddrs in msg */
+ pid_t rtm_pid; /* identify sender */
+ int rtm_seq; /* for sender to identify action */
+ int rtm_errno; /* why failed */
+ int rtm_use; /* from rtentry */
+ u_int32_t rtm_inits; /* which metrics we are initializing */
+ struct rt_metrics rtm_rmx; /* metrics themselves */
};
struct rt_msghdr2 {
- u_short rtm_msglen; /* to skip over non-understood messages */
- u_char rtm_version; /* future binary compatibility */
- u_char rtm_type; /* message type */
- u_short rtm_index; /* index for associated ifp */
- int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
- int rtm_addrs; /* bitmask identifying sockaddrs in msg */
- int32_t rtm_refcnt; /* reference count */
- int rtm_parentflags; /* flags of the parent route */
- int rtm_reserved; /* reserved field set to 0 */
- int rtm_use; /* from rtentry */
- u_int32_t rtm_inits; /* which metrics we are initializing */
- struct rt_metrics rtm_rmx; /* metrics themselves */
+ u_short rtm_msglen; /* to skip over non-understood messages */
+ u_char rtm_version; /* future binary compatibility */
+ u_char rtm_type; /* message type */
+ u_short rtm_index; /* index for associated ifp */
+ int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
+ int rtm_addrs; /* bitmask identifying sockaddrs in msg */
+ int32_t rtm_refcnt; /* reference count */
+ int rtm_parentflags; /* flags of the parent route */
+ int rtm_reserved; /* reserved field set to 0 */
+ int rtm_use; /* from rtentry */
+ u_int32_t rtm_inits; /* which metrics we are initializing */
+ struct rt_metrics rtm_rmx; /* metrics themselves */
};
#ifdef PRIVATE
+/*
+ * Route reachability info.
+ */
+struct rt_reach_info {
+ u_int32_t ri_refcnt; /* reference count */
+ u_int32_t ri_probes; /* total # of probes */
+ u_int64_t ri_snd_expire; /* tx expiration (calendar) time */
+ u_int64_t ri_rcv_expire; /* rx expiration (calendar) time */
+ int32_t ri_rssi; /* received signal strength */
+ int32_t ri_lqm; /* link quality metric */
+ int32_t ri_npm; /* node proximity metric */
+};
+
/*
* Extended routing message header (private).
*/
};
#endif /* PRIVATE */
-#define RTM_VERSION 5 /* Up the ante and ignore older versions */
+#define RTM_VERSION 5 /* Up the ante and ignore older versions */
/*
* Message types.
*/
-#define RTM_ADD 0x1 /* Add Route */
-#define RTM_DELETE 0x2 /* Delete Route */
-#define RTM_CHANGE 0x3 /* Change Metrics or flags */
-#define RTM_GET 0x4 /* Report Metrics */
-#define RTM_LOSING 0x5 /* Kernel Suspects Partitioning */
-#define RTM_REDIRECT 0x6 /* Told to use different route */
-#define RTM_MISS 0x7 /* Lookup failed on this address */
-#define RTM_LOCK 0x8 /* fix specified metrics */
-#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */
-#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */
-#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */
-#define RTM_NEWADDR 0xc /* address being added to iface */
-#define RTM_DELADDR 0xd /* address being removed from iface */
-#define RTM_IFINFO 0xe /* iface going up/down etc. */
+#define RTM_ADD 0x1 /* Add Route */
+#define RTM_DELETE 0x2 /* Delete Route */
+#define RTM_CHANGE 0x3 /* Change Metrics or flags */
+#define RTM_GET 0x4 /* Report Metrics */
+#define RTM_LOSING 0x5 /* Kernel Suspects Partitioning */
+#define RTM_REDIRECT 0x6 /* Told to use different route */
+#define RTM_MISS 0x7 /* Lookup failed on this address */
+#define RTM_LOCK 0x8 /* fix specified metrics */
+#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */
+#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */
+#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */
+#define RTM_NEWADDR 0xc /* address being added to iface */
+#define RTM_DELADDR 0xd /* address being removed from iface */
+#define RTM_IFINFO 0xe /* iface going up/down etc. */
#define RTM_NEWMADDR 0xf /* mcast group membership being added to if */
#define RTM_DELMADDR 0x10 /* mcast group membership being deleted */
#ifdef PRIVATE
-#define RTM_GET_SILENT 0x11
+#define RTM_GET_SILENT 0x11
#endif /* PRIVATE */
-#define RTM_IFINFO2 0x12 /* */
-#define RTM_NEWMADDR2 0x13 /* */
-#define RTM_GET2 0x14 /* */
+#define RTM_IFINFO2 0x12 /* */
+#define RTM_NEWMADDR2 0x13 /* */
+#define RTM_GET2 0x14 /* */
#ifdef PRIVATE
#define RTM_GET_EXT 0x15
#endif /* PRIVATE */
/*
* Bitmask values for rtm_inits and rmx_locks.
*/
-#define RTV_MTU 0x1 /* init or lock _mtu */
-#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */
-#define RTV_EXPIRE 0x4 /* init or lock _expire */
-#define RTV_RPIPE 0x8 /* init or lock _recvpipe */
-#define RTV_SPIPE 0x10 /* init or lock _sendpipe */
-#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */
-#define RTV_RTT 0x40 /* init or lock _rtt */
-#define RTV_RTTVAR 0x80 /* init or lock _rttvar */
+#define RTV_MTU 0x1 /* init or lock _mtu */
+#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */
+#define RTV_EXPIRE 0x4 /* init or lock _expire */
+#define RTV_RPIPE 0x8 /* init or lock _recvpipe */
+#define RTV_SPIPE 0x10 /* init or lock _sendpipe */
+#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */
+#define RTV_RTT 0x40 /* init or lock _rtt */
+#define RTV_RTTVAR 0x80 /* init or lock _rttvar */
/*
* Bitmask values for rtm_addrs.
*/
-#define RTA_DST 0x1 /* destination sockaddr present */
-#define RTA_GATEWAY 0x2 /* gateway sockaddr present */
-#define RTA_NETMASK 0x4 /* netmask sockaddr present */
-#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */
-#define RTA_IFP 0x10 /* interface name sockaddr present */
-#define RTA_IFA 0x20 /* interface addr sockaddr present */
-#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */
-#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */
+#define RTA_DST 0x1 /* destination sockaddr present */
+#define RTA_GATEWAY 0x2 /* gateway sockaddr present */
+#define RTA_NETMASK 0x4 /* netmask sockaddr present */
+#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */
+#define RTA_IFP 0x10 /* interface name sockaddr present */
+#define RTA_IFA 0x20 /* interface addr sockaddr present */
+#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */
+#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */
/*
* Index offsets for sockaddr array for alternate internal encoding.
*/
-#define RTAX_DST 0 /* destination sockaddr present */
-#define RTAX_GATEWAY 1 /* gateway sockaddr present */
-#define RTAX_NETMASK 2 /* netmask sockaddr present */
-#define RTAX_GENMASK 3 /* cloning mask sockaddr present */
-#define RTAX_IFP 4 /* interface name sockaddr present */
-#define RTAX_IFA 5 /* interface addr sockaddr present */
-#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */
-#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */
-#define RTAX_MAX 8 /* size of array to allocate */
+#define RTAX_DST 0 /* destination sockaddr present */
+#define RTAX_GATEWAY 1 /* gateway sockaddr present */
+#define RTAX_NETMASK 2 /* netmask sockaddr present */
+#define RTAX_GENMASK 3 /* cloning mask sockaddr present */
+#define RTAX_IFP 4 /* interface name sockaddr present */
+#define RTAX_IFA 5 /* interface addr sockaddr present */
+#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */
+#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */
+#define RTAX_MAX 8 /* size of array to allocate */
struct rt_addrinfo {
int rti_addrs;
struct sockaddr *rti_info[RTAX_MAX];
};
-struct route_cb {
- int ip_count;
- int ip6_count;
- int ipx_count;
- int ns_count;
- int iso_count;
- int any_count;
-};
-
#ifdef PRIVATE
/*
* For scoped routing; a zero interface scope value means nil/no scope.
#define IFSCOPE_NONE 0
#endif /* PRIVATE */
-#ifdef KERNEL_PRIVATE
+#ifdef BSD_KERNEL_PRIVATE
/*
* Generic call trace used by some subsystems (e.g. route, ifaddr)
*/
lck_mtx_assert(&(_rt)->rt_lock, LCK_MTX_ASSERT_NOTOWNED)
#define RT_LOCK(_rt) do { \
- if (!rte_debug) \
- lck_mtx_lock(&(_rt)->rt_lock); \
- else \
- rt_lock(_rt, FALSE); \
+ rt_lock(_rt, FALSE); \
} while (0)
#define RT_LOCK_SPIN(_rt) do { \
- if (!rte_debug) \
- lck_mtx_lock_spin(&(_rt)->rt_lock); \
- else \
- rt_lock(_rt, TRUE); \
+ rt_lock(_rt, TRUE); \
} while (0)
#define RT_CONVERT_LOCK(_rt) do { \
} while (0)
#define RT_UNLOCK(_rt) do { \
- if (!rte_debug) \
- lck_mtx_unlock(&(_rt)->rt_lock); \
- else \
- rt_unlock(_rt); \
+ rt_unlock(_rt); \
} while (0)
#define RT_ADDREF_LOCKED(_rt) do { \
- if (!rte_debug) { \
- RT_LOCK_ASSERT_HELD(_rt); \
- if (++(_rt)->rt_refcnt == 0) \
- panic("RT_ADDREF(%p) bad refcnt\n", _rt); \
- } else { \
- rtref(_rt); \
- } \
+ rtref(_rt); \
} while (0)
/*
} while (0)
#define RT_REMREF_LOCKED(_rt) do { \
- if (!rte_debug) { \
- RT_LOCK_ASSERT_HELD(_rt); \
- if ((_rt)->rt_refcnt == 0) \
- panic("RT_REMREF(%p) bad refcnt\n", _rt); \
- --(_rt)->rt_refcnt; \
- } else { \
- (void) rtunref(_rt); \
- } \
+ (void) rtunref(_rt); \
} while (0)
/*
RT_UNLOCK(_rt); \
} while (0)
-#define RTFREE(_rt) rtfree(_rt)
-#define RTFREE_LOCKED(_rt) rtfree_locked(_rt)
+/*
+ * This macro calculates skew in wall clock, just in case the user changes the
+ * system time. This skew adjustment is required because we now keep the
+ * expiration times in uptime terms in the kernel, but the userland still
+ * expects expiration times in terms of calendar times. This is used when
+ * reporting rt_expire, ln_expire, etc. values to user space.
+ */
+#define NET_CALCULATE_CLOCKSKEW(cc, ic, cu, iu) \
+ ((cc.tv_sec - ic) - (cu - iu))
-extern struct route_cb route_cb;
+extern unsigned int rt_verbose;
extern struct radix_node_head *rt_tables[AF_MAX+1];
-__private_extern__ lck_mtx_t *rnh_lock;
-__private_extern__ int use_routegenid;
-__private_extern__ uint32_t route_generation;
-__private_extern__ int rttrash;
-__private_extern__ unsigned int rte_debug;
+extern lck_mtx_t *rnh_lock;
+extern uint32_t route_genid_inet; /* INET route generation count */
+#if INET6
+extern uint32_t route_genid_inet6; /* INET6 route generation count */
+#endif /* INET6 */
+extern int rttrash;
+extern unsigned int rte_debug;
struct ifmultiaddr;
struct proc;
-extern void route_init(void) __attribute__((section("__TEXT, initcode")));
+extern void route_init(void);
extern void routegenid_update(void);
+extern void routegenid_inet_update(void);
+extern void routegenid_inet6_update(void);
extern void rt_ifmsg(struct ifnet *);
extern void rt_missmsg(int, struct rt_addrinfo *, int, int);
extern void rt_newaddrmsg(int, struct ifaddr *, int, struct rtentry *);
extern boolean_t rt_primary_default(struct rtentry *, struct sockaddr *);
extern struct rtentry *rt_lookup(boolean_t, struct sockaddr *,
struct sockaddr *, struct radix_node_head *, unsigned int);
+extern struct rtentry *rt_lookup_coarse(boolean_t, struct sockaddr *,
+ struct sockaddr *, struct radix_node_head *);
extern void rtalloc(struct route *);
extern void rtalloc_scoped(struct route *, unsigned int);
extern void rtalloc_ign(struct route *, uint32_t);
unsigned int);
extern struct rtentry *rtalloc1_scoped_locked(struct sockaddr *, int,
uint32_t, unsigned int);
-extern void rtfree(struct rtentry *);
extern void rtfree_locked(struct rtentry *);
+extern void rtfree(struct rtentry *);
extern void rtref(struct rtentry *);
/*
* rtunref will decrement the refcount, rtfree will decrement and free if
extern unsigned int sin6_get_ifscope(struct sockaddr *);
extern void rt_lock(struct rtentry *, boolean_t);
extern void rt_unlock(struct rtentry *);
-extern struct sockaddr *rtm_scrub_ifscope(int, int, struct sockaddr *,
- struct sockaddr *, struct sockaddr_storage *);
-extern u_int64_t rt_expiry(struct rtentry *, u_int64_t, u_int32_t);
-extern void rt_set_idleref(struct rtentry *);
-extern void rt_clear_idleref(struct rtentry *);
-extern void rt_aggdrain(int);
+extern struct sockaddr *rtm_scrub(int, int, struct sockaddr *,
+ struct sockaddr *, void *, uint32_t, kauth_cred_t *);
extern boolean_t rt_validate(struct rtentry *);
extern void rt_set_proxy(struct rtentry *, boolean_t);
extern void rt_set_gwroute(struct rtentry *, struct sockaddr *,
extern void rt_revalidate_gwroute(struct rtentry *, struct rtentry *);
extern errno_t route_to_gwroute(const struct sockaddr *, struct rtentry *,
struct rtentry **);
-
-#ifdef XNU_KERNEL_PRIVATE
-extern void route_copyin(struct route *src, struct route *dst, size_t length);
-extern void route_copyout(struct route *dst, const struct route *src, size_t length);
-#endif /* XNU_KERNEL_PRIVATE */
-
-#endif /* KERNEL_PRIVATE */
-
-#endif
+extern void rt_setexpire(struct rtentry *, uint64_t);
+extern void rt_str(struct rtentry *, char *, uint32_t, char *, uint32_t);
+extern const char *rtm2str(int);
+extern void route_copyin(struct route *, struct route *, size_t);
+extern void route_copyout(struct route *, const struct route *, size_t);
+#endif /* BSD_KERNEL_PRIVATE */
+#endif /* _NET_ROUTE_H_ */
projects / apple / xnu.git / blobdiff