#ifndef _SYS_MBUF_H_
#define _SYS_MBUF_H_
#include <sys/cdefs.h>
#include <sys/appleapiopts.h>
#ifdef XNU_KERNEL_PRIVATE
#include <sys/lock.h>
#include <sys/queue.h>
#define _MLEN (MSIZE - sizeof(struct m_hdr))
#define _MHLEN (_MLEN - sizeof(struct pkthdr))
#define NMBPBGSHIFT (MBIGCLSHIFT - MSIZESHIFT)
#define NMBPBG (1 << NMBPBGSHIFT)
#define NCLPBGSHIFT (MBIGCLSHIFT - MCLSHIFT)
#define NCLPBG (1 << NCLPBGSHIFT)
#define NMBPCLSHIFT (NMBPBGSHIFT - NCLPBGSHIFT)
#define NMBPCL (1 << NMBPCLSHIFT)
#define NCLPJCLSHIFT ((M16KCLSHIFT - MBIGCLSHIFT) + NCLPBGSHIFT)
#define NCLPJCL (1 << NCLPJCLSHIFT)
#define mtod(m, t) ((t)m_mtod(m))
#define dtom(x) m_dtom(x)
struct m_hdr {
struct mbuf *mh_next;
struct mbuf *mh_nextpkt;
int32_t mh_len;
caddr_t mh_data;
short mh_type;
short mh_flags;
};
struct m_tag {
u_int64_t m_tag_cookie;
#ifndef __LP64__
u_int32_t pad;
#endif
SLIST_ENTRY(m_tag) m_tag_link;
u_int16_t m_tag_type;
u_int16_t m_tag_len;
u_int32_t m_tag_id;
};
#define M_TAG_ALIGN(len) \
(P2ROUNDUP(len, sizeof (u_int64_t)) + sizeof (struct m_tag))
#define M_TAG_VALID_PATTERN 0xfeedfacefeedfaceULL
#define M_TAG_FREE_PATTERN 0xdeadbeefdeadbeefULL
struct m_taghdr {
#ifndef __LP64__
u_int32_t pad;
#endif
u_int64_t refcnt;
};
#define PF_TAG_GENERATED 0x000001
#define PF_TAG_FRAGCACHE 0x000002
#define PF_TAG_TRANSLATE_LOCALHOST 0x000004
#define PF_TAG_FLOWHASH 0x000100
#define PF_TAG_HDR_INET 0x000200
#define PF_TAG_HDR_INET6 0x000400
#define PF_TAG_TCP 0x000800
#define PF_TAG_FLOWADV 0x010000
#define PF_TAG_QUEUE1 0x100000
#define IF_PKTSEQ_SHIFT 4
struct pf_mtag {
void *pftag_hdr;
unsigned int pftag_rtableid;
union {
struct {
u_int32_t qid;
union {
u_int8_t val8[4];
u_int16_t val16[2];
u_int32_t val32;
} __qpriv_u;
} __pf_data;
u_int64_t pktseq;
} __pfifseq_u;
#define pftag_qid __pfifseq_u.__pf_data.qid
#define pftag_qpriv8 __pfifseq_u.__pf_data.__qpriv_u.val8
#define pftag_qpriv16 __pfifseq_u.__pf_data.__qpriv_u.val16
#define pftag_qpriv32 __pfifseq_u.__pf_data.__qpriv_u.val32
#define pftag_pktseq __pfifseq_u.pktseq
u_int32_t pftag_flowhash;
u_int16_t pftag_tag;
u_int16_t pftag_routed;
u_int32_t pftag_flags;
};
struct tcp_mtag {
u_int tm_tso_segz;
u_int16_t tm_pktlen;
u_int16_t tm_npkts;
};
struct pkthdr {
int len;
struct ifnet *rcvif;
void *header;
int csum_flags;
int csum_data;
u_short vlan_tag;
u_short socket_id;
SLIST_HEAD(packet_tags, m_tag) tags;
struct pf_mtag pf_mtag;
#define m_flowhash pf_mtag.pftag_flowhash
#define m_fhflags pf_mtag.pftag_flags
u_int32_t svc;
u_int16_t vt_nrecs;
u_int16_t aux_flags;
struct tcp_mtag tcp_mtag;
#define tso_segsz tcp_mtag.tm_tso_segz
#define lro_pktlen tcp_mtag.tm_pktlen
#define lro_npkts tcp_mtag.tm_npkts
};
struct m_ext {
caddr_t ext_buf;
void (*ext_free)(caddr_t, u_int, caddr_t);
u_int ext_size;
caddr_t ext_arg;
struct ext_refsq {
struct ext_refsq *forward, *backward;
} ext_refs;
struct ext_ref {
u_int32_t refcnt;
u_int32_t flags;
} *ext_refflags;
};
typedef struct m_ext _m_ext_t;
struct mbuf {
struct m_hdr m_hdr;
union {
struct {
struct pkthdr MH_pkthdr;
union {
struct m_ext MH_ext;
char MH_databuf[_MHLEN];
} MH_dat;
} MH;
char M_databuf[_MLEN];
} M_dat;
};
#define m_next m_hdr.mh_next
#define m_len m_hdr.mh_len
#define m_data m_hdr.mh_data
#define m_type m_hdr.mh_type
#define m_flags m_hdr.mh_flags
#define m_nextpkt m_hdr.mh_nextpkt
#define m_act m_nextpkt
#define m_pkthdr M_dat.MH.MH_pkthdr
#define m_ext M_dat.MH.MH_dat.MH_ext
#define m_pktdat M_dat.MH.MH_dat.MH_databuf
#define m_dat M_dat.M_databuf
#define m_pktlen(_m) ((_m)->m_pkthdr.len)
#define m_pftag(_m) (&(_m)->m_pkthdr.pf_mtag)
#define M_EXT 0x0001
#define M_PKTHDR 0x0002
#define M_EOR 0x0004
#define M_PROTO1 0x0008
#define M_PROTO2 0x0010
#define M_PROTO3 0x0020
#define M_LOOP 0x0040
#define M_PROTO5 0x0080
#define M_BCAST 0x0100
#define M_MCAST 0x0200
#define M_FRAG 0x0400
#define M_FIRSTFRAG 0x0800
#define M_LASTFRAG 0x1000
#define M_PROMISC 0x2000
#define M_HASFCS 0x4000
#define M_TAGHDR 0x8000
#define M_PROTOFLAGS \
(M_PROTO1|M_PROTO2|M_PROTO3|M_PROTO5)
#define M_COPYFLAGS \
(M_PKTHDR|M_EOR|M_PROTO1|M_PROTO2|M_PROTO3 | \
M_LOOP|M_PROTO5|M_BCAST|M_MCAST|M_FRAG | \
M_FIRSTFRAG|M_LASTFRAG|M_PROMISC|M_HASFCS)
#define CSUM_IP 0x0001
#define CSUM_TCP 0x0002
#define CSUM_UDP 0x0004
#define CSUM_IP_FRAGS 0x0008
#define CSUM_FRAGMENT 0x0010
#define CSUM_TCPIPV6 0x0020
#define CSUM_UDPIPV6 0x0040
#define CSUM_FRAGMENT_IPV6 0x0080
#define CSUM_IP_CHECKED 0x0100
#define CSUM_IP_VALID 0x0200
#define CSUM_DATA_VALID 0x0400
#define CSUM_PSEUDO_HDR 0x0800
#define CSUM_TCP_SUM16 0x1000
#define CSUM_DELAY_DATA (CSUM_TCP | CSUM_UDP)
#define CSUM_DELAY_IP (CSUM_IP)
#define CSUM_DELAY_IPV6_DATA (CSUM_TCPIPV6 | CSUM_UDPIPV6)
#define CSUM_DATA_IPV6_VALID CSUM_DATA_VALID
#define CSUM_CHECKSUM_MASK 0xffff
#define CSUM_VLAN_TAG_VALID 0x10000
#define CSUM_TSO_IPV4 0x100000
#define CSUM_TSO_IPV6 0x200000
#define MAUXF_PRIO_PRIVILEGED 0x0001
#define MAUXF_PROXY_DST 0x0002
#define MAUXF_INET_RESOLVE_RTR 0x0004
#define MAUXF_INET6_RESOLVE_RTR 0x0008
#define MAUXF_SW_LRO_PKT 0x0010
#define MAUXF_SW_LRO_DID_CSUM 0x0020
#endif
#define MT_FREE 0
#define MT_DATA 1
#define MT_HEADER 2
#define MT_SOCKET 3
#define MT_PCB 4
#define MT_RTABLE 5
#define MT_HTABLE 6
#define MT_ATABLE 7
#define MT_SONAME 8
#define MT_SOOPTS 10
#define MT_FTABLE 11
#define MT_RIGHTS 12
#define MT_IFADDR 13
#define MT_CONTROL 14
#define MT_OOBDATA 15
#define MT_TAG 16
#define MT_MAX 32
#ifdef XNU_KERNEL_PRIVATE
#if 1
#define MCHECK(m) m_mcheck(m)
#else
#define MCHECK(m)
#endif
#define MGET(m, how, type) ((m) = m_get((how), (type)))
#define MGETHDR(m, how, type) ((m) = m_gethdr((how), (type)))
union mcluster {
union mcluster *mcl_next;
char mcl_buf[MCLBYTES];
};
#define MCLALLOC(p, how) ((p) = m_mclalloc(how))
#define MCLFREE(p) m_mclfree(p)
#define MCLGET(m, how) ((m) = m_mclget(m, how))
union mbigcluster {
union mbigcluster *mbc_next;
char mbc_buf[MBIGCLBYTES];
};
union m16kcluster {
union m16kcluster *m16kcl_next;
char m16kcl_buf[M16KCLBYTES];
};
#define MCLHASREFERENCE(m) m_mclhasreference(m)
#define MFREE(m, n) ((n) = m_free(m))
#define M_COPY_PKTHDR(to, from) m_copy_pkthdr(to, from)
#define M_COPY_PFTAG(to, from) m_copy_pftag(to, from)
#define M_ALIGN(m, len) \
do { \
(m)->m_data += (MLEN - (len)) &~ (sizeof (long) - 1); \
} while (0)
#define MH_ALIGN(m, len) \
do { \
(m)->m_data += (MHLEN - (len)) &~ (sizeof (long) - 1); \
} while (0)
#define M_LEADINGSPACE(m) m_leadingspace(m)
#define M_TRAILINGSPACE(m) m_trailingspace(m)
#define M_PREPEND(m, plen, how) ((m) = m_prepend_2((m), (plen), (how)))
#define MCHTYPE(m, t) m_mchtype(m, t)
#define m_copy(m, o, l) m_copym((m), (o), (l), M_DONTWAIT)
#define MBSHIFT 20
#define MBSIZE (1 << MBSHIFT)
#define GBSHIFT 30
#define GBSIZE (1 << GBSHIFT)
#define M_STRUCT_GET(val, typ, m, off, len) \
do { \
struct mbuf *t; \
int tmp; \
\
if ((m)->m_len >= (off) + (len)) { \
(val) = (typ)(mtod((m), caddr_t) + (off)); \
} else { \
t = m_pulldown((m), (off), (len), &tmp); \
if (t != NULL) { \
if (t->m_len < tmp + (len)) \
panic("m_pulldown malfunction"); \
(val) = (typ)(mtod(t, caddr_t) + tmp); \
} else { \
(val) = (typ)NULL; \
(m) = NULL; \
} \
} \
} while (0)
#define M_STRUCT_GET0(val, typ, m, off, len) \
do { \
struct mbuf *t; \
\
if ((off) == 0 && ((m)->m_len >= (len))) { \
(val) = (typ)(void *)mtod(m, caddr_t); \
} else { \
t = m_pulldown((m), (off), (len), NULL); \
if (t != NULL) { \
if (t->m_len < (len)) \
panic("m_pulldown malfunction"); \
(val) = (typ)(void *)mtod(t, caddr_t); \
} else { \
(val) = (typ)NULL; \
(m) = NULL; \
} \
} \
} while (0)
#define MBUF_INPUT_CHECK(m, rcvif) \
do { \
if (!(m->m_flags & MBUF_PKTHDR) || \
m->m_len < 0 || \
m->m_len > ((njcl > 0) ? njclbytes : MBIGCLBYTES) || \
m->m_type == MT_FREE || \
((m->m_flags & M_EXT) != 0 && m->m_ext.ext_buf == NULL)) { \
panic_plain("Failed mbuf validity check: mbuf %p len %d " \
"type %d flags 0x%x data %p rcvif %s%d ifflags 0x%x", \
m, m->m_len, m->m_type, m->m_flags, \
((m->m_flags & M_EXT) ? m->m_ext.ext_buf : m->m_data), \
rcvif->if_name, rcvif->if_unit, \
(rcvif->if_flags & 0xffff)); \
} \
} while (0)
#define MBUFQ_HEAD(name) \
struct name { \
struct mbuf *mq_first; \
struct mbuf **mq_last; \
}
#define MBUFQ_INIT(q) do { \
MBUFQ_FIRST(q) = NULL; \
(q)->mq_last = &MBUFQ_FIRST(q); \
} while (0)
#define MBUFQ_PREPEND(q, m) do { \
if ((MBUFQ_NEXT(m) = MBUFQ_FIRST(q)) == NULL) \
(q)->mq_last = &MBUFQ_NEXT(m); \
MBUFQ_FIRST(q) = (m); \
} while (0)
#define MBUFQ_ENQUEUE(q, m) do { \
MBUFQ_NEXT(m) = NULL; \
*(q)->mq_last = (m); \
(q)->mq_last = &MBUFQ_NEXT(m); \
} while (0)
#define MBUFQ_ENQUEUE_MULTI(q, m, n) do { \
MBUFQ_NEXT(n) = NULL; \
*(q)->mq_last = (m); \
(q)->mq_last = &MBUFQ_NEXT(n); \
} while (0)
#define MBUFQ_DEQUEUE(q, m) do { \
if (((m) = MBUFQ_FIRST(q)) != NULL) { \
if ((MBUFQ_FIRST(q) = MBUFQ_NEXT(m)) == NULL) \
(q)->mq_last = &MBUFQ_FIRST(q); \
else \
MBUFQ_NEXT(m) = NULL; \
} \
} while (0)
#define MBUFQ_REMOVE(q, m) do { \
if (MBUFQ_FIRST(q) == (m)) { \
MBUFQ_DEQUEUE(q, m); \
} else { \
struct mbuf *_m = MBUFQ_FIRST(q); \
while (MBUFQ_NEXT(_m) != (m)) \
_m = MBUFQ_NEXT(_m); \
if ((MBUFQ_NEXT(_m) = \
MBUFQ_NEXT(MBUFQ_NEXT(_m))) == NULL) \
(q)->mq_last = &MBUFQ_NEXT(_m); \
} \
} while (0)
#define MBUFQ_DRAIN(q) do { \
struct mbuf *__m0; \
while ((__m0 = MBUFQ_FIRST(q)) != NULL) { \
MBUFQ_FIRST(q) = MBUFQ_NEXT(__m0); \
MBUFQ_NEXT(__m0) = NULL; \
m_freem(__m0); \
} \
(q)->mq_last = &MBUFQ_FIRST(q); \
} while (0)
#define MBUFQ_FOREACH(m, q) \
for ((m) = MBUFQ_FIRST(q); \
(m); \
(m) = MBUFQ_NEXT(m))
#define MBUFQ_FOREACH_SAFE(m, q, tvar) \
for ((m) = MBUFQ_FIRST(q); \
(m) && ((tvar) = MBUFQ_NEXT(m), 1); \
(m) = (tvar))
#define MBUFQ_EMPTY(q) ((q)->mq_first == NULL)
#define MBUFQ_FIRST(q) ((q)->mq_first)
#define MBUFQ_NEXT(m) ((m)->m_nextpkt)
#define MBUFQ_LAST(q) (*(q)->mq_last)
#define max_linkhdr P2ROUNDUP(_max_linkhdr, sizeof (u_int32_t))
#define max_protohdr P2ROUNDUP(_max_protohdr, sizeof (u_int32_t))
#endif
struct mbstat {
u_int32_t m_mbufs;
u_int32_t m_clusters;
u_int32_t m_spare;
u_int32_t m_clfree;
u_int32_t m_drops;
u_int32_t m_wait;
u_int32_t m_drain;
u_short m_mtypes[256];
u_int32_t m_mcfail;
u_int32_t m_mpfail;
u_int32_t m_msize;
u_int32_t m_mclbytes;
u_int32_t m_minclsize;
u_int32_t m_mlen;
u_int32_t m_mhlen;
u_int32_t m_bigclusters;
u_int32_t m_bigclfree;
u_int32_t m_bigmclbytes;
};
struct ombstat {
u_int32_t m_mbufs;
u_int32_t m_clusters;
u_int32_t m_spare;
u_int32_t m_clfree;
u_int32_t m_drops;
u_int32_t m_wait;
u_int32_t m_drain;
u_short m_mtypes[256];
u_int32_t m_mcfail;
u_int32_t m_mpfail;
u_int32_t m_msize;
u_int32_t m_mclbytes;
u_int32_t m_minclsize;
u_int32_t m_mlen;
u_int32_t m_mhlen;
};
#define MAX_MBUF_CNAME 15
#if defined(XNU_KERNEL_PRIVATE)
struct omb_class_stat {
char mbcl_cname[MAX_MBUF_CNAME + 1];
u_int32_t mbcl_size;
u_int32_t mbcl_total;
u_int32_t mbcl_active;
u_int32_t mbcl_infree;
u_int32_t mbcl_slab_cnt;
u_int64_t mbcl_alloc_cnt;
u_int64_t mbcl_free_cnt;
u_int64_t mbcl_notified;
u_int64_t mbcl_purge_cnt;
u_int64_t mbcl_fail_cnt;
u_int32_t mbcl_ctotal;
u_int32_t mbcl_mc_state;
u_int32_t mbcl_mc_cached;
u_int32_t mbcl_mc_waiter_cnt;
u_int32_t mbcl_mc_wretry_cnt;
u_int32_t mbcl_mc_nwretry_cnt;
u_int64_t mbcl_reserved[4];
} __attribute__((__packed__));
#endif
typedef struct mb_class_stat {
char mbcl_cname[MAX_MBUF_CNAME + 1];
u_int32_t mbcl_size;
u_int32_t mbcl_total;
u_int32_t mbcl_active;
u_int32_t mbcl_infree;
u_int32_t mbcl_slab_cnt;
#if defined(KERNEL) || defined(__LP64__)
u_int32_t mbcl_pad;
#endif
u_int64_t mbcl_alloc_cnt;
u_int64_t mbcl_free_cnt;
u_int64_t mbcl_notified;
u_int64_t mbcl_purge_cnt;
u_int64_t mbcl_fail_cnt;
u_int32_t mbcl_ctotal;
u_int32_t mbcl_mc_state;
u_int32_t mbcl_mc_cached;
u_int32_t mbcl_mc_waiter_cnt;
u_int32_t mbcl_mc_wretry_cnt;
u_int32_t mbcl_mc_nwretry_cnt;
u_int64_t mbcl_reserved[4];
} mb_class_stat_t;
#define MCS_DISABLED 0
#define MCS_ONLINE 1
#define MCS_PURGING 2
#define MCS_OFFLINE 3
#if defined(XNU_KERNEL_PRIVATE)
struct omb_stat {
u_int32_t mbs_cnt;
struct omb_class_stat mbs_class[1];
} __attribute__((__packed__));
#endif
typedef struct mb_stat {
u_int32_t mbs_cnt;
#if defined(KERNEL) || defined(__LP64__)
u_int32_t mbs_pad;
#endif
mb_class_stat_t mbs_class[1];
} mb_stat_t;
#ifdef PRIVATE
#define MLEAK_STACK_DEPTH 16
typedef struct mleak_trace_stat {
u_int64_t mltr_collisions;
u_int64_t mltr_hitcount;
u_int64_t mltr_allocs;
u_int64_t mltr_depth;
u_int64_t mltr_addr[MLEAK_STACK_DEPTH];
} mleak_trace_stat_t;
typedef struct mleak_stat {
u_int32_t ml_isaddr64;
u_int32_t ml_cnt;
mleak_trace_stat_t ml_trace[1];
} mleak_stat_t;
struct mleak_table {
u_int32_t mleak_capture;
u_int32_t mleak_sample_factor;
u_int64_t alloc_collisions;
u_int64_t trace_collisions;
u_int64_t alloc_overwrites;
u_int64_t trace_overwrites;
u_int64_t alloc_recorded;
u_int64_t trace_recorded;
u_int64_t outstanding_allocs;
u_int64_t total_conflicts;
};
#endif
#ifdef KERNEL_PRIVATE
__BEGIN_DECLS
extern struct mbstat mbstat;
__END_DECLS
#endif
#ifdef XNU_KERNEL_PRIVATE
__BEGIN_DECLS
#include <sys/malloc.h>
struct mbuf;
#define M_COPYALL 1000000000
#define M_DONTWAIT M_NOWAIT
#define M_WAIT M_WAITOK
#define MLEN mbuf_get_mlen()
#define MHLEN mbuf_get_mhlen()
#define MINCLSIZE mbuf_get_minclsize()
extern void m_freem(struct mbuf *);
extern char *mcl_to_paddr(char *);
extern void m_adj(struct mbuf *, int);
extern void m_cat(struct mbuf *, struct mbuf *);
extern void m_copydata(struct mbuf *, int, int, void *);
extern struct mbuf *m_copym(struct mbuf *, int, int, int);
extern struct mbuf *m_get(int, int);
extern struct mbuf *m_gethdr(int, int);
extern struct mbuf *m_getpacket(void);
extern struct mbuf *m_getpackets(int, int, int);
extern struct mbuf *m_mclget(struct mbuf *, int);
extern void *m_mtod(struct mbuf *);
extern struct mbuf *m_prepend_2(struct mbuf *, int, int);
extern struct mbuf *m_pullup(struct mbuf *, int);
extern struct mbuf *m_split(struct mbuf *, int, int);
extern void m_mclfree(caddr_t p);
#if defined(__i386__) || defined(__x86_64__)
#define MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(_m)
#else
#define MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(_m) do { \
if (!IS_P2ALIGNED((_m)->m_data, sizeof (u_int32_t))) { \
if (((_m)->m_flags & M_PKTHDR) && \
(_m)->m_pkthdr.rcvif != NULL) { \
panic_plain("\n%s: mbuf %p data ptr %p is not " \
"32-bit aligned [%s%d: alignerrs=%lld]\n", \
__func__, (_m), (_m)->m_data, \
(_m)->m_pkthdr.rcvif->if_name, \
(_m)->m_pkthdr.rcvif->if_unit, \
(_m)->m_pkthdr.rcvif->if_alignerrs); \
} else { \
panic_plain("\n%s: mbuf %p data ptr %p is not " \
"32-bit aligned\n", \
__func__, (_m), (_m)->m_data); \
} \
} \
} while (0)
#endif
#define MBUF_SC_MAX_CLASSES 10
#define MBUF_SCVAL(x) ((x) & 0xffff)
#define MBUF_SCIDX(x) ((((x) >> 16) & 0xff) >> 3)
#define MBUF_SC2TC(_sc) (MBUF_SCVAL(_sc) >> 7)
#define MBUF_TC2SCVAL(_tc) ((_tc) << 7)
#define IS_MBUF_SC_BACKGROUND(_sc) (((_sc) == MBUF_SC_BK_SYS) || \
((_sc) == MBUF_SC_BK))
#define SCIDX_BK_SYS MBUF_SCIDX(MBUF_SC_BK_SYS)
#define SCIDX_BK MBUF_SCIDX(MBUF_SC_BK)
#define SCIDX_BE MBUF_SCIDX(MBUF_SC_BE)
#define SCIDX_RD MBUF_SCIDX(MBUF_SC_RD)
#define SCIDX_OAM MBUF_SCIDX(MBUF_SC_OAM)
#define SCIDX_AV MBUF_SCIDX(MBUF_SC_AV)
#define SCIDX_RV MBUF_SCIDX(MBUF_SC_RV)
#define SCIDX_VI MBUF_SCIDX(MBUF_SC_VI)
#define SCIDX_VO MBUF_SCIDX(MBUF_SC_VO)
#define SCIDX_CTL MBUF_SCIDX(MBUF_SC_CTL)
#define SCVAL_BK_SYS MBUF_SCVAL(MBUF_SC_BK_SYS)
#define SCVAL_BK MBUF_SCVAL(MBUF_SC_BK)
#define SCVAL_BE MBUF_SCVAL(MBUF_SC_BE)
#define SCVAL_RD MBUF_SCVAL(MBUF_SC_RD)
#define SCVAL_OAM MBUF_SCVAL(MBUF_SC_OAM)
#define SCVAL_AV MBUF_SCVAL(MBUF_SC_AV)
#define SCVAL_RV MBUF_SCVAL(MBUF_SC_RV)
#define SCVAL_VI MBUF_SCVAL(MBUF_SC_VI)
#define SCVAL_VO MBUF_SCVAL(MBUF_SC_VO)
#define SCVAL_CTL MBUF_SCVAL(MBUF_SC_CTL)
#define MBUF_VALID_SC(c) \
(c == MBUF_SC_BK_SYS || c == MBUF_SC_BK || c == MBUF_SC_BE || \
c == MBUF_SC_RD || c == MBUF_SC_OAM || c == MBUF_SC_AV || \
c == MBUF_SC_RV || c == MBUF_SC_VI || c == MBUF_SC_VO || \
c == MBUF_SC_CTL)
#define MBUF_VALID_SCIDX(c) \
(c == SCIDX_BK_SYS || c == SCIDX_BK || c == SCIDX_BE || \
c == SCIDX_RD || c == SCIDX_OAM || c == SCIDX_AV || \
c == SCIDX_RV || c == SCIDX_VI || c == SCIDX_VO || \
c == SCIDX_CTL)
#define MBUF_VALID_SCVAL(c) \
(c == SCVAL_BK_SYS || c == SCVAL_BK || c == SCVAL_BE || \
c == SCVAL_RD || c == SCVAL_OAM || c == SCVAL_AV || \
c == SCVAL_RV || c == SCVAL_VI || c == SCVAL_VO || \
c == SCVAL_CTL)
__private_extern__ union mbigcluster *mbutl;
__private_extern__ union mbigcluster *embutl;
__private_extern__ unsigned int nmbclusters;
__private_extern__ int njcl;
__private_extern__ int njclbytes;
__private_extern__ int max_hdr;
__private_extern__ int max_datalen;
__private_extern__ int _max_linkhdr;
__private_extern__ int _max_protohdr;
__private_extern__ unsigned int mbuf_default_ncl(int, u_int64_t);
__private_extern__ void mbinit(void);
__private_extern__ struct mbuf *m_clattach(struct mbuf *, int, caddr_t,
void (*)(caddr_t, u_int, caddr_t), u_int, caddr_t, int);
__private_extern__ caddr_t m_bigalloc(int);
__private_extern__ void m_bigfree(caddr_t, u_int, caddr_t);
__private_extern__ struct mbuf *m_mbigget(struct mbuf *, int);
__private_extern__ caddr_t m_16kalloc(int);
__private_extern__ void m_16kfree(caddr_t, u_int, caddr_t);
__private_extern__ struct mbuf *m_m16kget(struct mbuf *, int);
__private_extern__ struct mbuf *m_free(struct mbuf *);
__private_extern__ struct mbuf *m_getclr(int, int);
__private_extern__ struct mbuf *m_getptr(struct mbuf *, int, int *);
__private_extern__ unsigned int m_length(struct mbuf *);
__private_extern__ unsigned int m_length2(struct mbuf *, struct mbuf **);
__private_extern__ unsigned int m_fixhdr(struct mbuf *);
__private_extern__ struct mbuf *m_defrag(struct mbuf *, int);
__private_extern__ struct mbuf *m_defrag_offset(struct mbuf *, u_int32_t, int);
__private_extern__ struct mbuf *m_prepend(struct mbuf *, int, int);
__private_extern__ struct mbuf *m_copyup(struct mbuf *, int, int);
__private_extern__ struct mbuf *m_retry(int, int);
__private_extern__ struct mbuf *m_retryhdr(int, int);
__private_extern__ int m_freem_list(struct mbuf *);
__private_extern__ int m_append(struct mbuf *, int, caddr_t);
__private_extern__ struct mbuf *m_last(struct mbuf *);
__private_extern__ struct mbuf *m_devget(char *, int, int, struct ifnet *,
void (*)(const void *, void *, size_t));
__private_extern__ struct mbuf *m_pulldown(struct mbuf *, int, int, int *);
__private_extern__ struct mbuf *m_getcl(int, int, int);
__private_extern__ caddr_t m_mclalloc(int);
__private_extern__ int m_mclhasreference(struct mbuf *);
__private_extern__ void m_copy_pkthdr(struct mbuf *, struct mbuf *);
__private_extern__ void m_copy_pftag(struct mbuf *, struct mbuf *);
__private_extern__ struct mbuf *m_dtom(void *);
__private_extern__ int m_mtocl(void *);
__private_extern__ union mcluster *m_cltom(int);
__private_extern__ int m_trailingspace(struct mbuf *);
__private_extern__ int m_leadingspace(struct mbuf *);
__private_extern__ struct mbuf *m_normalize(struct mbuf *m);
__private_extern__ void m_mchtype(struct mbuf *m, int t);
__private_extern__ void m_mcheck(struct mbuf *);
__private_extern__ void m_copyback(struct mbuf *, int, int, const void *);
__private_extern__ struct mbuf *m_copyback_cow(struct mbuf *, int, int,
const void *, int);
__private_extern__ int m_makewritable(struct mbuf **, int, int, int);
__private_extern__ struct mbuf *m_dup(struct mbuf *m, int how);
__private_extern__ struct mbuf *m_copym_with_hdrs(struct mbuf *, int, int, int,
struct mbuf **, int *);
__private_extern__ struct mbuf *m_getpackethdrs(int, int);
__private_extern__ struct mbuf *m_getpacket_how(int);
__private_extern__ struct mbuf *m_getpackets_internal(unsigned int *, int,
int, int, size_t);
__private_extern__ struct mbuf *m_allocpacket_internal(unsigned int *, size_t,
unsigned int *, int, int, size_t);
#define KERNEL_MODULE_TAG_ID 0
enum {
KERNEL_TAG_TYPE_NONE = 0,
KERNEL_TAG_TYPE_DUMMYNET = 1,
KERNEL_TAG_TYPE_DIVERT = 2,
KERNEL_TAG_TYPE_IPFORWARD = 3,
KERNEL_TAG_TYPE_IPFILT = 4,
KERNEL_TAG_TYPE_MACLABEL = 5,
KERNEL_TAG_TYPE_MAC_POLICY_LABEL = 6,
KERNEL_TAG_TYPE_ENCAP = 8,
KERNEL_TAG_TYPE_INET6 = 9,
KERNEL_TAG_TYPE_IPSEC = 10,
KERNEL_TAG_TYPE_PF = 11
};
__private_extern__ struct m_tag *m_tag_alloc(u_int32_t, u_int16_t, int, int);
__private_extern__ struct m_tag *m_tag_create(u_int32_t, u_int16_t, int, int,
struct mbuf *);
__private_extern__ void m_tag_free(struct m_tag *);
__private_extern__ void m_tag_prepend(struct mbuf *, struct m_tag *);
__private_extern__ void m_tag_unlink(struct mbuf *, struct m_tag *);
__private_extern__ void m_tag_delete(struct mbuf *, struct m_tag *);
__private_extern__ void m_tag_delete_chain(struct mbuf *, struct m_tag *);
__private_extern__ struct m_tag *m_tag_locate(struct mbuf *, u_int32_t,
u_int16_t, struct m_tag *);
__private_extern__ struct m_tag *m_tag_copy(struct m_tag *, int);
__private_extern__ int m_tag_copy_chain(struct mbuf *, struct mbuf *, int);
__private_extern__ void m_tag_init(struct mbuf *);
__private_extern__ struct m_tag *m_tag_first(struct mbuf *);
__private_extern__ struct m_tag *m_tag_next(struct mbuf *, struct m_tag *);
__END_DECLS
#endif
#ifdef KERNEL
#include <sys/kpi_mbuf.h>
#ifdef XNU_KERNEL_PRIVATE
__BEGIN_DECLS
__private_extern__ void m_service_class_init(struct mbuf *);
__private_extern__ int m_set_service_class(struct mbuf *, mbuf_svc_class_t);
__private_extern__ mbuf_svc_class_t m_get_service_class(struct mbuf *);
__private_extern__ mbuf_svc_class_t m_service_class_from_idx(u_int32_t);
__private_extern__ mbuf_svc_class_t m_service_class_from_val(u_int32_t);
__private_extern__ int m_set_traffic_class(struct mbuf *, mbuf_traffic_class_t);
__private_extern__ mbuf_traffic_class_t m_get_traffic_class(struct mbuf *);
__END_DECLS
#endif
#endif
#endif