/*
- * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2017 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
*/
#ifndef _NET_ROUTE_H_
-#define _NET_ROUTE_H_
+#define _NET_ROUTE_H_
#include <sys/appleapiopts.h>
#include <stdint.h>
#include <sys/types.h>
* retransmission behavior and are included in the routing structure.
*/
struct rt_metrics {
- 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 */
- u_int32_t rmx_recvpipe; /* inbound delay-bandwidth product */
- u_int32_t rmx_sendpipe; /* outbound delay-bandwidth product */
- u_int32_t rmx_ssthresh; /* outbound gateway buffer limit */
- u_int32_t rmx_rtt; /* estimated round trip time */
- u_int32_t rmx_rttvar; /* estimated rtt variance */
- u_int32_t rmx_pksent; /* packets sent using this route */
- u_int32_t rmx_filler[4]; /* will be used for T/TCP later */
+ 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 */
+ u_int32_t rmx_recvpipe; /* inbound delay-bandwidth product */
+ u_int32_t rmx_sendpipe; /* outbound delay-bandwidth product */
+ u_int32_t rmx_ssthresh; /* outbound gateway buffer limit */
+ u_int32_t rmx_rtt; /* estimated round trip time */
+ u_int32_t rmx_rttvar; /* estimated rtt variance */
+ u_int32_t rmx_pksent; /* packets sent using this route */
+ u_int32_t rmx_state; /* route state */
+ u_int32_t rmx_filler[3]; /* will be used for T/TCP later */
};
/*
* rmx_rtt and rmx_rttvar are stored as microseconds;
*/
-#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */
+#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */
#ifdef PRIVATE
struct route_old {
- void *ro_rt;
- uint32_t ro_flags;
- struct sockaddr ro_dst;
+ 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>
+#include <net/if_llatbl.h>
+#include <sys/eventhandler.h>
+#include <net/if_dl.h>
+extern boolean_t trigger_v6_defrtr_select;
/*
* Kernel resident routing tables.
*
*/
struct route {
/*
- * N.B: struct route must begin with ro_{rt,srcia,flags}
+ * N.B: struct route must begin with ro_{rt, lle, 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;
+ struct rtentry *ro_rt;
+ struct llentry *ro_lle;
+
+ 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 ROF_SRCIF_SELECTED 0x0001 /* source interface was selected */
+#if 0
+/* XXX These will be used in the changes coming in later */
+#define ROF_NORTREF 0x0002 /* doesn't hold reference on ro_rt */
+#define ROF_L2_ME 0x0004 /* dst L2 addr is our address */
+#define ROF_MAY_LOOP 0x0008 /* dst may require loop copy */
+#define ROF_HAS_HEADER 0x0010 /* mbuf already have its header prepended */
+#define ROF_REJECT 0x0020 /* Destination is reject */
+#define ROF_BLACKHOLE 0x0040 /* Destination is blackhole */
+#define ROF_HAS_GW 0x0080 /* Destination has GW */
+#endif
+#define ROF_LLE_CACHE 0x0100 /* Cache link layer */
-#define ROUTE_UNUSABLE(_ro) \
- ((_ro)->ro_rt == NULL || \
- ((_ro)->ro_rt->rt_flags & (RTF_UP|RTF_CONDEMNED)) != RTF_UP || \
+#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; \
- } \
+#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; \
+ } \
+ if ((_ro)->ro_lle != NULL) { \
+ LLE_REMREF((_ro)->ro_lle); \
+ (_ro)->ro_lle = NULL; \
+ (_ro)->ro_flags &= ~ROF_LLE_CACHE; \
+ } \
} while (0)
-#define ROUTE_RELEASE_LOCKED(_ro) _ROUTE_RELEASE_COMMON(_ro, TRUE)
-#define ROUTE_RELEASE(_ro) _ROUTE_RELEASE_COMMON(_ro, FALSE)
+#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,
* gateway rather than the ultimate destination.
*/
-#define NRTT_HIST 10
+#define NRTT_HIST 10
/*
* Kernel routing entry structure.
*/
struct rtentry {
- struct radix_node rt_nodes[2]; /* tree glue, and other values */
-#define rt_key(r) (SA((r)->rt_nodes->rn_key))
-#define rt_mask(r) (SA((r)->rt_nodes->rn_mask))
+ struct radix_node rt_nodes[2]; /* tree glue, and other values */
+#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 */
- 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 *);
+ decl_lck_mtx_data(, rt_lock); /* lock for routing entry */
+ 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 */
void (*rt_llinfo_refresh) (struct rtentry *); /* expedite llinfo refresh */
- 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 */
+ 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 */
- u_int32_t rtt_hist[NRTT_HIST]; /* RTT history sample by TCP connections */
- u_int32_t rtt_min; /* minimum RTT computed from history */
- u_int32_t rtt_expire_ts; /* RTT history expire timestamp */
- u_int8_t rtt_index; /* Index into RTT history */
+ 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 */
+ u_int32_t rtt_hist[NRTT_HIST]; /* RTT history sample by TCP connections */
+ u_int32_t rtt_min; /* minimum RTT computed from history */
+ u_int32_t rtt_expire_ts; /* RTT history expire timestamp */
+ u_int8_t rtt_index; /* Index into RTT history */
+ /* Event handler context for the rtentrt */
+ struct eventhandler_lists_ctxt rt_evhdlr_ctxt;
};
+enum {
+ ROUTE_STATUS_UPDATE = 1,
+ ROUTE_ENTRY_REFRESH,
+ ROUTE_ENTRY_DELETED,
+ ROUTE_LLENTRY_RESOLVED,
+ ROUTE_LLENTRY_UNREACH,
+ ROUTE_LLENTRY_CHANGED,
+ ROUTE_LLENTRY_STALE,
+ ROUTE_LLENTRY_TIMEDOUT,
+ ROUTE_LLENTRY_DELETED,
+ ROUTE_LLENTRY_EXPIRED,
+ ROUTE_LLENTRY_PROBED,
+ ROUTE_EVHDLR_DEREGISTER,
+};
+
+extern const char * route_event2str(int route_event);
+
+typedef void (*route_event_fn) (struct eventhandler_entry_arg,
+ struct sockaddr *, int, struct sockaddr *, int);
+EVENTHANDLER_DECLARE(route_event, route_event_fn);
+
/*
* 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; \
+#define RT_GENID_SYNC(_rt) do { \
+ if ((_rt)->rt_tree_genid != NULL) \
+ (_rt)->rt_genid = *(_rt)->rt_tree_genid; \
} while (0)
/*
* Indicates whether or not the route entry's generation ID is stale.
*/
-#define RT_GENID_OUTOFSYNC(_rt) \
- ((_rt)->rt_tree_genid != NULL && \
+#define RT_GENID_OUTOFSYNC(_rt) \
+ ((_rt)->rt_tree_genid != NULL && \
*(_rt)->rt_tree_genid != (_rt)->rt_genid)
+enum {
+ ROUTE_OP_READ,
+ ROUTE_OP_WRITE,
+};
+
+extern int route_op_entitlement_check(struct socket *, kauth_cred_t, int, boolean_t);
#endif /* BSD_KERNEL_PRIVATE */
-#define RTF_UP 0x1 /* route usable */
-#define RTF_GATEWAY 0x2 /* destination is a gateway */
-#define RTF_HOST 0x4 /* host entry (net otherwise) */
-#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_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_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_PROXY 0x8000000 /* proxying, no interface scope */
-#define RTF_ROUTER 0x10000000 /* host is a router */
- /* 0x20000000 and up unassigned */
-
-#define RTF_BITS \
+#define RTF_UP 0x1 /* route usable */
+#define RTF_GATEWAY 0x2 /* destination is a gateway */
+#define RTF_HOST 0x4 /* host entry (net otherwise) */
+#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 /* DEPRECATED - exists ONLY for backward
+ * compatibility */
+#define RTF_LLDATA 0x400 /* used by apps to add/del L2 entries */
+#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_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_PROXY 0x8000000 /* proxying, no interface scope */
+#define RTF_ROUTER 0x10000000 /* host is a router */
+#define RTF_DEAD 0x20000000 /* Route entry is being freed */
+ /* 0x40000000 and up unassigned */
+
+#define RTPRF_OURS RTF_PROTO3 /* set on routes we manage */
+#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"
+#define IS_DIRECT_HOSTROUTE(rt) \
+ (((rt)->rt_flags & (RTF_HOST | RTF_GATEWAY)) == RTF_HOST)
/*
* Routing statistics.
*/
-struct rtstat {
- short rts_badredirect; /* bogus redirect calls */
- short rts_dynamic; /* routes created by redirects */
- short rts_newgateway; /* routes modified by redirects */
- short rts_unreach; /* lookups which failed */
- short rts_wildcard; /* lookups satisfied by a wildcard */
+struct rtstat {
+ short rts_badredirect; /* bogus redirect calls */
+ short rts_dynamic; /* routes created by redirects */
+ short rts_newgateway; /* routes modified by redirects */
+ short rts_unreach; /* lookups which failed */
+ short rts_wildcard; /* lookups satisfied by a wildcard */
+ short rts_badrtgwroute; /* route to gateway is not direct */
};
/*
* 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 */
+ 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 */
+ 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 */
};
* 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 */
+ 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).
*/
struct rt_msghdr_ext {
- u_short rtm_msglen; /* to skip over non-understood messages */
- u_char rtm_version; /* future binary compatibility */
- u_char rtm_type; /* message type */
- u_int32_t rtm_index; /* index for associated ifp */
- u_int32_t rtm_flags; /* flags, incl. kern & message, e.g. DONE */
- u_int32_t rtm_reserved; /* for future use */
- u_int32_t 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 */
- u_int32_t rtm_use; /* from rtentry */
- u_int32_t rtm_inits; /* which metrics we are initializing */
- struct rt_metrics rtm_rmx; /* metrics themselves */
- struct rt_reach_info rtm_ri; /* route reachability info */
+ u_short rtm_msglen; /* to skip over non-understood messages */
+ u_char rtm_version; /* future binary compatibility */
+ u_char rtm_type; /* message type */
+ u_int32_t rtm_index; /* index for associated ifp */
+ u_int32_t rtm_flags; /* flags, incl. kern & message, e.g. DONE */
+ u_int32_t rtm_reserved; /* for future use */
+ u_int32_t 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 */
+ u_int32_t rtm_use; /* from rtentry */
+ u_int32_t rtm_inits; /* which metrics we are initializing */
+ struct rt_metrics rtm_rmx; /* metrics themselves */
+ struct rt_reach_info rtm_ri; /* route reachability info */
};
#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 /* RTM_LOSING is no longer generated by xnu
- and is deprecated */
-#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 */
+#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 /* RTM_LOSING is no longer generated by xnu
+ * and is deprecated */
+#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
+#define RTM_GET_EXT 0x15
#endif /* PRIVATE */
-#ifdef BSD_KERNEL_PRIVATE
-/* RTM flags */
-#define RTMF_HIDE_LLADDR 0x00000001
-#endif /* BSD_KERNEL_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 */
#ifdef PRIVATE
-#define RTV_REFRESH_HOST 0x100 /* init host route to expedite refresh */
+#define RTV_REFRESH_HOST 0x100 /* init host route to expedite refresh */
#endif
/*
* 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];
+ int rti_addrs;
+ struct sockaddr *rti_info[RTAX_MAX];
};
#ifdef PRIVATE
/*
* For scoped routing; a zero interface scope value means nil/no scope.
*/
-#define IFSCOPE_NONE 0
+#define IFSCOPE_NONE 0
#endif /* PRIVATE */
#ifdef BSD_KERNEL_PRIVATE
/*
* Generic call trace used by some subsystems (e.g. route, ifaddr)
*/
-#define CTRACE_STACK_SIZE 8 /* depth of stack trace */
-#define CTRACE_HIST_SIZE 4 /* refcnt history size */
+#define CTRACE_STACK_SIZE 8 /* depth of stack trace */
+#define CTRACE_HIST_SIZE 4 /* refcnt history size */
typedef struct ctrace {
- void *th; /* thread ptr */
- void *pc[CTRACE_STACK_SIZE]; /* PC stack trace */
+ void *th; /* thread ptr */
+ void *pc[CTRACE_STACK_SIZE]; /* PC stack trace */
} ctrace_t;
extern void ctrace_record(ctrace_t *);
-#define RT_LOCK_ASSERT_HELD(_rt) \
- lck_mtx_assert(&(_rt)->rt_lock, LCK_MTX_ASSERT_OWNED)
+#define RT_LOCK_ASSERT_HELD(_rt) \
+ LCK_MTX_ASSERT(&(_rt)->rt_lock, LCK_MTX_ASSERT_OWNED)
-#define RT_LOCK_ASSERT_NOTHELD(_rt) \
- lck_mtx_assert(&(_rt)->rt_lock, LCK_MTX_ASSERT_NOTOWNED)
+#define RT_LOCK_ASSERT_NOTHELD(_rt) \
+ LCK_MTX_ASSERT(&(_rt)->rt_lock, LCK_MTX_ASSERT_NOTOWNED)
-#define RT_LOCK(_rt) do { \
- rt_lock(_rt, FALSE); \
+#define RT_LOCK(_rt) do { \
+ rt_lock(_rt, FALSE); \
} while (0)
-#define RT_LOCK_SPIN(_rt) do { \
- rt_lock(_rt, TRUE); \
+#define RT_LOCK_SPIN(_rt) do { \
+ rt_lock(_rt, TRUE); \
} while (0)
-#define RT_CONVERT_LOCK(_rt) do { \
- RT_LOCK_ASSERT_HELD(_rt); \
- lck_mtx_convert_spin(&(_rt)->rt_lock); \
+#define RT_CONVERT_LOCK(_rt) do { \
+ RT_LOCK_ASSERT_HELD(_rt); \
+ lck_mtx_convert_spin(&(_rt)->rt_lock); \
} while (0)
-#define RT_UNLOCK(_rt) do { \
- rt_unlock(_rt); \
+#define RT_UNLOCK(_rt) do { \
+ rt_unlock(_rt); \
} while (0)
-#define RT_ADDREF_LOCKED(_rt) do { \
- rtref(_rt); \
+#define RT_ADDREF_LOCKED(_rt) do { \
+ rtref(_rt); \
} while (0)
/*
* Spin variant mutex is used here; caller is responsible for
* converting any previously-held similar lock to full mutex.
*/
-#define RT_ADDREF(_rt) do { \
- RT_LOCK_SPIN(_rt); \
- RT_ADDREF_LOCKED(_rt); \
- RT_UNLOCK(_rt); \
+#define RT_ADDREF(_rt) do { \
+ RT_LOCK_SPIN(_rt); \
+ RT_ADDREF_LOCKED(_rt); \
+ RT_UNLOCK(_rt); \
} while (0)
-#define RT_REMREF_LOCKED(_rt) do { \
- (void) rtunref(_rt); \
+#define RT_REMREF_LOCKED(_rt) do { \
+ (void) rtunref(_rt); \
} while (0)
/*
* Spin variant mutex is used here; caller is responsible for
* converting any previously-held similar lock to full mutex.
*/
-#define RT_REMREF(_rt) do { \
- RT_LOCK_SPIN(_rt); \
- RT_REMREF_LOCKED(_rt); \
- RT_UNLOCK(_rt); \
+#define RT_REMREF(_rt) do { \
+ RT_LOCK_SPIN(_rt); \
+ RT_REMREF_LOCKED(_rt); \
+ RT_UNLOCK(_rt); \
} while (0)
/*
* 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) \
+#define NET_CALCULATE_CLOCKSKEW(cc, ic, cu, iu) \
((cc.tv_sec - ic) - (cu - iu))
extern unsigned int rt_verbose;
-extern struct radix_node_head *rt_tables[AF_MAX+1];
+extern struct radix_node_head *rt_tables[AF_MAX + 1];
extern lck_mtx_t *rnh_lock;
-extern uint32_t route_genid_inet; /* INET route generation count */
+extern uint32_t route_genid_inet; /* INET route generation count */
#if INET6
-extern uint32_t route_genid_inet6; /* INET6 route generation count */
+extern uint32_t route_genid_inet6; /* INET6 route generation count */
#endif /* INET6 */
extern int rttrash;
extern unsigned int rte_debug;
extern void rt_lock(struct rtentry *, boolean_t);
extern void rt_unlock(struct rtentry *);
extern struct sockaddr *rtm_scrub(int, int, struct sockaddr *,
- struct sockaddr *, void *, uint32_t, kauth_cred_t *, uint32_t);
+ 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 boolean_t rt_ifa_is_dst(struct sockaddr *, struct ifaddr *);
extern struct sockaddr *sa_copy(struct sockaddr *, struct sockaddr_storage *,
unsigned int *);
+
+/*
+ * The following is used to enqueue work items for route events
+ * and also used to pass route event while walking the tree
+ */
+struct route_event {
+ struct rtentry *rt;
+ /*
+ * There's no reference taken on gwrt.
+ * We only use it to check whether we should
+ * point to rt_gateway or the embedded rt_addr
+ * structure.
+ */
+ struct rtentry *gwrt;
+ union {
+ union sockaddr_in_4_6 _rtev_ipaddr;
+ struct sockaddr_dl _rtev_lladdr;
+ char _rtev_addr_bytes[DLIL_SDLMAXLEN];
+ } rt_addr;
+ uint32_t route_event_code;
+ eventhandler_tag evtag;
+};
+
+#define rtev_ipaddr rt_addr._rtev_ipaddr
+#define rtev_lladdr rt_addr._rtev_lladdr
+#define rtev_addr_bytes rt_addr._rtev_addr_bytes
+
+extern void route_event_init(struct route_event *p_route_ev, struct rtentry *rt,
+ struct rtentry *gwrt, int route_ev_code);
+extern int route_event_walktree(struct radix_node *rn, void *arg);
+extern void route_event_enqueue_nwk_wq_entry(struct rtentry *, struct rtentry *,
+ uint32_t, eventhandler_tag, boolean_t);
#endif /* BSD_KERNEL_PRIVATE */
#endif /* _NET_ROUTE_H_ */
projects / apple / xnu.git / blobdiff