/*
- * Copyright (c) 2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <sys/queue.h>
-#ifdef KERNEL_PRIVATE
+#ifdef XNU_KERNEL_PRIVATE
#include <kern/locks.h>
struct llinfo_nd6 {
short ln_router; /* 2^0: ND6 router bit */
int ln_byhint; /* # of times we made it reachable by UL hint */
u_int32_t ln_flags; /* flags; see below */
+ struct if_llreach *ln_llreach; /* link-layer reachability record */
+ u_int64_t ln_lastused; /* last used timestamp */
};
/* Values for ln_flags */
#define ND6_LNF_TIMER_SKIP 0x1 /* modified by nd6_timer() */
#define ND6_LNF_IN_USE 0x2 /* currently in llinfo_nd6 list */
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
#define ND6_LLINFO_PURGE -3
#define ND6_LLINFO_NOSTATE -2
#define ND6_LLINFO_DELAY 3
#define ND6_LLINFO_PROBE 4
-#ifdef KERNEL_PRIVATE
+#ifdef XNU_KERNEL_PRIVATE
#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
-#endif /* KERNEL_PRIVATE */
-
-#if !defined(KERNEL_PRIVATE)
+#define ND6_LLINFO_PERMANENT(n) (((n)->ln_expire == 0) && ((n)->ln_state > ND6_LLINFO_INCOMPLETE))
+#define ND6_IFF_PERFORMNUD 0x1
+#define ND6_IFF_ACCEPT_RTADV 0x2 /* APPLE: not used. Innterface specific router advertisments are
+ * handled with a specific ifnet flag: IFEF_ACCEPT_RTADVD
+ */
+#define ND6_IFF_PREFER_SOURCE 0x4 /* APPLE: NOT USED not related to ND. */
+#define ND6_IFF_IFDISABLED 0x8 /* IPv6 operation is disabled due to
+ * DAD failure. (XXX: not ND-specific)
+ */
+#define ND6_IFF_DONT_SET_IFROUTE 0x10 /* NOT USED */
+
+#endif /* XNU_KERNEL_PRIVATE */
+
+#if !defined(XNU_KERNEL_PRIVATE)
struct nd_ifinfo {
#else
/* For binary compatibility, this structure must not change */
struct nd_ifinfo_compat {
-#endif /* !KERNEL_PRIVATE */
+#endif /* !XNU_KERNEL_PRIVATE */
u_int32_t linkmtu; /* LinkMTU */
u_int32_t maxmtu; /* Upper bound of LinkMTU */
u_int32_t basereachable; /* BaseReachableTime */
u_int8_t randomid[8]; /* current random ID */
};
-#if defined(KERNEL_PRIVATE)
+#if defined(XNU_KERNEL_PRIVATE)
struct nd_ifinfo {
u_int32_t linkmtu; /* LinkMTU */
u_int32_t maxmtu; /* Upper bound of LinkMTU */
u_int32_t flags; /* Flags */
int recalctm; /* BaseReacable re-calculation timer */
u_int8_t chlim; /* CurHopLimit */
- u_int8_t receivedra;
+ u_int8_t initialized; /* Flag to see the entry is initialized */
/* the following 3 members are for privacy extension for addrconf */
u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
int32_t nprefixes;
int32_t ndefrouters;
};
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
#define ND6_IFF_PERFORMNUD 0x1
int expire; /* lifetime for NDP state transition */
};
-#if defined(KERNEL_PRIVATE)
+#if defined(XNU_KERNEL_PRIVATE)
struct in6_nbrinfo_32 {
char ifname[IFNAMSIZ];
struct in6_addr addr;
int state;
int expire;
} __attribute__((aligned(8)));
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
#define DRLSTSIZ 10
#define PRLSTSIZ 10
} defrouter[DRLSTSIZ];
};
-#if defined(KERNEL_PRIVATE)
+#if defined(XNU_KERNEL_PRIVATE)
struct in6_drlist_32 {
char ifname[IFNAMSIZ];
struct {
u_short if_index __attribute__((aligned(8)));
} defrouter[DRLSTSIZ] __attribute__((aligned(8)));
};
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
+
+/* valid values for stateflags */
+#define NDDRF_INSTALLED 0x1 /* installed in the routing table */
+#define NDDRF_IFSCOPE 0x2 /* installed as a scoped route */
+#define NDDRF_STATIC 0x4 /* for internal use only */
+#ifdef XNU_KERNEL_PRIVATE
+#define NDDRF_PROCESSED 0x10
+#endif
struct in6_defrouter {
struct sockaddr_in6 rtaddr;
u_char flags;
+ u_char stateflags;
u_short rtlifetime;
u_long expire;
u_short if_index;
};
-#if defined(KERNEL_PRIVATE)
+#if defined(XNU_KERNEL_PRIVATE)
struct in6_defrouter_32 {
struct sockaddr_in6 rtaddr;
u_char flags;
+ u_char stateflags;
u_short rtlifetime;
u_int32_t expire;
u_short if_index;
struct in6_defrouter_64 {
struct sockaddr_in6 rtaddr;
u_char flags;
+ u_char stateflags;
u_short rtlifetime;
u_long expire __attribute__((aligned(8)));
u_short if_index __attribute__((aligned(8)));
} __attribute__((aligned(8)));
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
struct in6_prlist {
char ifname[IFNAMSIZ];
} prefix[PRLSTSIZ];
};
-#if defined(KERNEL_PRIVATE)
+#if defined(XNU_KERNEL_PRIVATE)
struct in6_prlist_32 {
char ifname[IFNAMSIZ];
struct {
struct in6_addr advrtr[DRLSTSIZ];
} prefix[PRLSTSIZ];
};
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
struct in6_prefix {
struct sockaddr_in6 prefix;
/* struct sockaddr_in6 advrtr[] */
};
-#if defined(KERNEL_PRIVATE)
+#if defined(XNU_KERNEL_PRIVATE)
struct in6_prefix_32 {
struct sockaddr_in6 prefix;
struct prf_ra raflags;
u_int32_t flags;
int refcnt;
u_short if_index;
- u_short advrtrs;
+ u_short advrtrs; /* number of advertisement routers */
/* struct sockaddr_in6 advrtr[] */
};
u_short advrtrs;
/* struct sockaddr_in6 advrtr[] */
};
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
struct in6_ondireq {
char ifname[IFNAMSIZ];
} ndi;
};
-#if !defined(KERNEL_PRIVATE)
+#if !defined(XNU_KERNEL_PRIVATE)
struct in6_ndireq {
char ifname[IFNAMSIZ];
struct nd_ifinfo ndi;
char ifname[IFNAMSIZ];
struct nd_ifinfo_compat ndi;
};
-#endif /* !KERNEL_PRIVATE */
+#endif /* !XNU_KERNEL_PRIVATE */
struct in6_ndifreq {
char ifname[IFNAMSIZ];
u_long ifindex;
};
-#if defined(KERNEL_PRIVATE)
+#define MAX_RTR_SOLICITATION_DELAY 1 /* 1sec */
+#define RTR_SOLICITATION_INTERVAL 4 /* 4sec */
+
+#if defined(XNU_KERNEL_PRIVATE)
struct in6_ndifreq_32 {
char ifname[IFNAMSIZ];
u_int32_t ifindex;
char ifname[IFNAMSIZ];
u_long ifindex __attribute__((aligned(8)));
};
-#endif /* KERNEL_PRIVATE */
+#endif /* XNU_KERNEL_PRIVATE */
/* Prefix status */
#define NDPRF_ONLINK 0x1
#define NDPRF_DETACHED 0x2
+#define NDPRF_STATIC 0x100
+#define NDPRF_IFSCOPE 0x1000
+#ifdef XNU_KERNEL_PRIVATE
+#define NDPRF_PROCESSED 0x08000
+#endif
/* protocol constants */
#define MAX_RTR_SOLICITATION_DELAY 1 /*1sec*/
#define MAX_RTR_SOLICITATIONS 3
#define ND6_INFINITE_LIFETIME 0xffffffff
+#define ND6_MAX_LIFETIME 0x7fffffff
-#ifdef KERNEL_PRIVATE
+#ifdef XNU_KERNEL_PRIVATE
/*
* Protects nd_ifinfo[]
*/
TAILQ_HEAD(nd_drhead, nd_defrouter);
struct nd_defrouter {
+ decl_lck_mtx_data(, nddr_lock);
+ uint32_t nddr_refcount;
+ uint32_t nddr_debug;
TAILQ_ENTRY(nd_defrouter) dr_entry;
- struct in6_addr rtaddr;
- u_char flags; /* flags on RA message */
- u_short rtlifetime;
+ struct in6_addr rtaddr;
+ u_char flags; /* flags on RA message */
+ u_char stateflags;
+ u_short rtlifetime;
u_int32_t expire;
- u_int32_t advint; /* Mobile IPv6 addition (milliseconds) */
- u_int32_t advint_expire; /* Mobile IPv6 addition */
- int advints_lost; /* Mobile IPv6 addition */
- struct ifnet *ifp;
+ struct ifnet *ifp;
+ unsigned int genid;
+ int err;
+ void (*nddr_trace) /* callback fn for tracing refs */
+ (struct nd_defrouter *, int);
};
+#define NDDR_LOCK_ASSERT_HELD(_nddr) \
+ lck_mtx_assert(&(_nddr)->nddr_lock, LCK_MTX_ASSERT_OWNED)
+
+#define NDDR_LOCK_ASSERT_NOTHELD(_nddr) \
+ lck_mtx_assert(&(_nddr)->nddr_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define NDDR_LOCK(_nddr) \
+ lck_mtx_lock(&(_nddr)->nddr_lock)
+
+#define NDDR_LOCK_SPIN(_nddr) \
+ lck_mtx_lock_spin(&(_nddr)->nddr_lock)
+
+#define NDDR_CONVERT_LOCK(_nddr) do { \
+ NDPR_LOCK_ASSERT_HELD(_nddr); \
+ lck_mtx_convert_spin(&(_nddr)->nddr_lock); \
+} while (0)
+
+#define NDDR_UNLOCK(_nddr) \
+ lck_mtx_unlock(&(_nddr)->nddr_lock)
+
+#define NDDR_ADDREF(_nddr) \
+ nddr_addref(_nddr, 0)
+
+#define NDDR_ADDREF_LOCKED(_nddr) \
+ nddr_addref(_nddr, 1)
+
+#define NDDR_REMREF(_nddr) do { \
+ (void) nddr_remref(_nddr, 0); \
+} while (0)
+
+#define NDDR_REMREF_LOCKED(_nddr) \
+ nddr_remref(_nddr, 1)
+
struct nd_prefix {
+ decl_lck_mtx_data(, ndpr_lock);
+ u_int32_t ndpr_refcount; /* reference count */
+ u_int32_t ndpr_debug; /* see ifa_debug flags */
struct ifnet *ndpr_ifp;
LIST_ENTRY(nd_prefix) ndpr_entry;
struct sockaddr_in6 ndpr_prefix; /* prefix */
struct in6_addr ndpr_addr; /* address that is derived from the prefix */
u_int32_t ndpr_vltime; /* advertised valid lifetime */
u_int32_t ndpr_pltime; /* advertised preferred lifetime */
- time_t ndpr_expire; /* expiration time of the prefix */
time_t ndpr_preferred; /* preferred time of the prefix */
+ time_t ndpr_expire; /* expiration time of the prefix */
+ time_t ndpr_lastupdate; /* reception time of last advertisement */
struct prf_ra ndpr_flags;
u_int32_t ndpr_stateflags; /* actual state flags */
/* list of routers that advertise the prefix: */
LIST_HEAD(pr_rtrhead, nd_pfxrouter) ndpr_advrtrs;
u_char ndpr_plen;
- int ndpr_refcnt; /* reference counter from addresses */
- int ndpr_usecnt; /* actual use count; prevents free */
+ int ndpr_addrcnt; /* reference counter from addresses */
+ void (*ndpr_trace) /* callback fn for tracing refs */
+ (struct nd_prefix *, int);
};
#define ndpr_next ndpr_entry.le_next
#define ndpr_raf ndpr_flags
#define ndpr_raf_onlink ndpr_flags.onlink
#define ndpr_raf_auto ndpr_flags.autonomous
-
+#define ndpr_raf_router ndpr_flags.router
/*
* We keep expired prefix for certain amount of time, for validation purposes.
* 1800s = MaxRtrAdvInterval
*/
#define NDPR_KEEP_EXPIRED (1800 * 2)
+#define NDPR_LOCK_ASSERT_HELD(_ndpr) \
+ lck_mtx_assert(&(_ndpr)->ndpr_lock, LCK_MTX_ASSERT_OWNED)
+
+#define NDPR_LOCK_ASSERT_NOTHELD(_ndpr) \
+ lck_mtx_assert(&(_ndpr)->ndpr_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define NDPR_LOCK(_ndpr) \
+ lck_mtx_lock(&(_ndpr)->ndpr_lock)
+
+#define NDPR_LOCK_SPIN(_ndpr) \
+ lck_mtx_lock_spin(&(_ndpr)->ndpr_lock)
+
+#define NDPR_CONVERT_LOCK(_ndpr) do { \
+ NDPR_LOCK_ASSERT_HELD(_ndpr); \
+ lck_mtx_convert_spin(&(_ndpr)->ndpr_lock); \
+} while (0)
+
+#define NDPR_UNLOCK(_ndpr) \
+ lck_mtx_unlock(&(_ndpr)->ndpr_lock)
+
+#define NDPR_ADDREF(_ndpr) \
+ ndpr_addref(_ndpr, 0)
+
+#define NDPR_ADDREF_LOCKED(_ndpr) \
+ ndpr_addref(_ndpr, 1)
+
+#define NDPR_REMREF(_ndpr) do { \
+ (void) ndpr_remref(_ndpr, 0); \
+} while (0)
+
+#define NDPR_REMREF_LOCKED(_ndpr) \
+ ndpr_remref(_ndpr, 1)
+
/*
* Message format for use in obtaining information about prefixes
* from inet6 sysctl function
extern int nd6_umaxtries;
extern int nd6_mmaxtries;
extern int nd6_useloopback;
+extern int nd6_accept_6to4;
extern int nd6_maxnudhint;
extern int nd6_gctimer;
extern struct llinfo_nd6 llinfo_nd6;
extern struct nd_prhead nd_prefix;
extern int nd6_debug;
extern size_t nd_ifinfo_indexlim;
+extern int nd6_onlink_ns_rfc4861;
-#define nd6log(x) do { if (nd6_debug) log x; } while (0)
-
-extern struct callout nd6_timer_ch;
+#define nd6log(x) do { if (nd6_debug >= 1) log x; } while (0)
+#define nd6log2(x) do { if (nd6_debug >= 2) log x; } while (0)
/* nd6_rtr.c */
extern int nd6_defifindex;
extern int ip6_desync_factor; /* seconds */
+/* ND6_INFINITE_LIFETIME does not apply to temporary addresses */
extern u_int32_t ip6_temp_preferred_lifetime; /* seconds */
extern u_int32_t ip6_temp_valid_lifetime; /* seconds */
extern int ip6_temp_regen_advance; /* seconds */
union nd_opts {
- struct nd_opt_hdr *nd_opt_array[9]; /*max = home agent info*/
+ struct nd_opt_hdr *nd_opt_array[8]; /* max = target address list */
struct {
struct nd_opt_hdr *zero;
struct nd_opt_hdr *src_lladdr;
struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
struct nd_opt_rd_hdr *rh;
struct nd_opt_mtu *mtu;
- struct nd_opt_hdr *six;
- struct nd_opt_advint *adv;
- struct nd_opt_hai *hai;
struct nd_opt_hdr *search; /* multiple opts */
struct nd_opt_hdr *last; /* multiple opts */
int done;
#define nd_opts_pi_end nd_opt_each.pi_end
#define nd_opts_rh nd_opt_each.rh
#define nd_opts_mtu nd_opt_each.mtu
-#define nd_opts_adv nd_opt_each.adv
-#define nd_opts_hai nd_opt_each.hai
#define nd_opts_search nd_opt_each.search
#define nd_opts_last nd_opt_each.last
#define nd_opts_done nd_opt_each.done
extern void nd6_cache_lladdr(struct ifnet *, struct in6_addr *,
char *, int, int, int);
extern int nd6_output(struct ifnet *, struct ifnet *, struct mbuf *,
- struct sockaddr_in6 *, struct rtentry *, int);
+ struct sockaddr_in6 *, struct rtentry *);
extern int nd6_storelladdr(struct ifnet *, struct rtentry *, struct mbuf *,
struct sockaddr *, u_char *);
extern int nd6_need_cache(struct ifnet *);
extern void nd6_drain(void *);
/* nd6_nbr.c */
+extern void nd6_nbr_init(void);
extern void nd6_na_input(struct mbuf *, int, int);
extern void nd6_na_output(struct ifnet *, const struct in6_addr *,
const struct in6_addr *, u_int32_t, int, struct sockaddr *);
extern void nd6_ns_input(struct mbuf *, int, int);
extern void nd6_ns_output(struct ifnet *, const struct in6_addr *,
- const struct in6_addr *, struct llinfo_nd6 *, int, int);
+ const struct in6_addr *, struct llinfo_nd6 *, int);
extern caddr_t nd6_ifptomac(struct ifnet *);
extern void nd6_dad_start(struct ifaddr *, int *);
extern void nd6_dad_stop(struct ifaddr *);
-extern void nd6_dad_duplicated(struct ifaddr *);
+extern void nd6_dad_duplicated(struct ifaddr *, boolean_t);
+extern void nd6_llreach_alloc(struct rtentry *, struct ifnet *, void *,
+ unsigned int, boolean_t);
+extern void nd6_llreach_set_reachable(struct ifnet *, void *, unsigned int);
+extern void nd6_llreach_use(struct llinfo_nd6 *);
/* nd6_rtr.c */
+extern void nd6_rtr_init(void);
extern void nd6_rs_input(struct mbuf *, int, int);
extern void nd6_ra_input(struct mbuf *, int, int);
extern void prelist_del(struct nd_prefix *);
-extern void defrouter_addreq(struct nd_defrouter *);
-extern void defrouter_delreq(struct nd_defrouter *, int);
-extern void defrouter_select(void);
-extern void defrtrlist_del(struct nd_defrouter *, int);
-extern void prelist_remove(struct nd_prefix *, int);
+extern void defrouter_addreq(struct nd_defrouter *, boolean_t);
+extern void defrouter_delreq(struct nd_defrouter *);
+extern void defrouter_select(struct ifnet *);
+extern void defrouter_reset(void);
+extern int defrtrlist_ioctl(u_long, caddr_t);
+extern void defrtrlist_del(struct nd_defrouter *);
+extern int defrtrlist_add_static(struct nd_defrouter *);
+extern int defrtrlist_del_static(struct nd_defrouter *);
+extern void prelist_remove(struct nd_prefix *);
extern int prelist_update(struct nd_prefix *, struct nd_defrouter *,
- struct mbuf *);
+ struct mbuf *, int);
extern int nd6_prelist_add(struct nd_prefix *, struct nd_defrouter *,
- struct nd_prefix **);
-extern int nd6_prefix_onlink(struct nd_prefix *, int, int);
+ struct nd_prefix **, boolean_t);
+extern int nd6_prefix_onlink(struct nd_prefix *);
+extern int nd6_prefix_onlink_scoped(struct nd_prefix *, unsigned int);
extern int nd6_prefix_offlink(struct nd_prefix *);
-extern void pfxlist_onlink_check(int);
+extern void pfxlist_onlink_check(void);
extern struct nd_defrouter *defrouter_lookup(struct in6_addr *, struct ifnet *);
extern struct nd_prefix *nd6_prefix_lookup(struct nd_prefix *);
extern int in6_init_prefix_ltimes(struct nd_prefix *ndpr);
extern void rt6_flush(struct in6_addr *, struct ifnet *);
extern int nd6_setdefaultiface(int);
extern int in6_tmpifadd(const struct in6_ifaddr *, int, int);
-extern void ndpr_hold(struct nd_prefix *, boolean_t);
-extern void ndpr_rele(struct nd_prefix *, boolean_t);
-#endif /* KERNEL_PRIVATE */
+extern void nddr_addref(struct nd_defrouter *, int);
+extern struct nd_defrouter *nddr_remref(struct nd_defrouter *, int);
+extern void ndpr_addref(struct nd_prefix *, int);
+extern struct nd_prefix *ndpr_remref(struct nd_prefix *, int);
+#endif /* XNU_KERNEL_PRIVATE */
#ifdef KERNEL
projects / apple / xnu.git / blobdiff