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-rw-r--r--c/src/exec/libnetworking/sys/mbuf.h440
1 files changed, 0 insertions, 440 deletions
diff --git a/c/src/exec/libnetworking/sys/mbuf.h b/c/src/exec/libnetworking/sys/mbuf.h
deleted file mode 100644
index 00f8a13a5c..0000000000
--- a/c/src/exec/libnetworking/sys/mbuf.h
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- * Copyright (c) 1982, 1986, 1988, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)mbuf.h 8.5 (Berkeley) 2/19/95
- * $Id$
- */
-
-#ifndef _SYS_MBUF_H_
-#define _SYS_MBUF_H_
-
-#ifndef M_WAITOK
-#include <sys/malloc.h>
-#endif
-
-/*
- * Mbufs are of a single size, MSIZE (machine/machparam.h), which
- * includes overhead. An mbuf may add a single "mbuf cluster" of size
- * MCLBYTES (also in machine/machparam.h), which has no additional overhead
- * and is used instead of the internal data area; this is done when
- * at least MINCLSIZE of data must be stored.
- */
-
-#define MLEN (MSIZE - sizeof(struct m_hdr)) /* normal data len */
-#define MHLEN (MLEN - sizeof(struct pkthdr)) /* data len w/pkthdr */
-
-#define MINCLSIZE (MHLEN + MLEN) /* smallest amount to put in cluster */
-#define M_MAXCOMPRESS (MHLEN / 2) /* max amount to copy for compression */
-
-/*
- * Macros for type conversion
- * mtod(m,t) - convert mbuf pointer to data pointer of correct type
- * dtom(x) - convert data pointer within mbuf to mbuf pointer (XXX)
- * mtocl(x) - convert pointer within cluster to cluster index #
- * cltom(x) - convert cluster # to ptr to beginning of cluster
- */
-#define mtod(m,t) ((t)((m)->m_data))
-#define dtom(x) ((struct mbuf *)((long)(x) & ~(MSIZE-1)))
-#define mtocl(x) (((u_long)(x) - (u_long)mbutl) >> MCLSHIFT)
-#define cltom(x) ((caddr_t)((u_long)mbutl + ((u_long)(x) << MCLSHIFT)))
-
-/* header at beginning of each mbuf: */
-struct m_hdr {
- struct mbuf *mh_next; /* next buffer in chain */
- struct mbuf *mh_nextpkt; /* next chain in queue/record */
- caddr_t mh_data; /* location of data */
- int mh_len; /* amount of data in this mbuf */
- short mh_type; /* type of data in this mbuf */
- short mh_flags; /* flags; see below */
-};
-
-/* record/packet header in first mbuf of chain; valid if M_PKTHDR set */
-struct pkthdr {
- struct ifnet *rcvif; /* rcv interface */
- int len; /* total packet length */
-};
-
-/* description of external storage mapped into mbuf, valid if M_EXT set */
-struct m_ext {
- caddr_t ext_buf; /* start of buffer */
- void (*ext_free) /* free routine if not the usual */
- __P((caddr_t, u_int));
- u_int ext_size; /* size of buffer, for ext_free */
- void (*ext_ref) /* add a reference to the ext object */
- __P((caddr_t, u_int));
-};
-
-struct mbuf {
- struct m_hdr m_hdr;
- union {
- struct {
- struct pkthdr MH_pkthdr; /* M_PKTHDR set */
- union {
- struct m_ext MH_ext; /* M_EXT set */
- char MH_databuf[MHLEN];
- } MH_dat;
- } MH;
- char M_databuf[MLEN]; /* !M_PKTHDR, !M_EXT */
- } 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
-
-/* mbuf flags */
-#define M_EXT 0x0001 /* has associated external storage */
-#define M_PKTHDR 0x0002 /* start of record */
-#define M_EOR 0x0004 /* end of record */
-#define M_PROTO1 0x0008 /* protocol-specific */
-
-/* mbuf pkthdr flags, also in m_flags */
-#define M_BCAST 0x0100 /* send/received as link-level broadcast */
-#define M_MCAST 0x0200 /* send/received as link-level multicast */
-
-/* flags copied when copying m_pkthdr */
-#define M_COPYFLAGS (M_PKTHDR|M_EOR|M_PROTO1|M_BCAST|M_MCAST)
-
-/* mbuf types */
-#define MT_FREE 0 /* should be on free list */
-#define MT_DATA 1 /* dynamic (data) allocation */
-#define MT_HEADER 2 /* packet header */
-#define MT_SOCKET 3 /* socket structure */
-#define MT_PCB 4 /* protocol control block */
-#define MT_RTABLE 5 /* routing tables */
-#define MT_HTABLE 6 /* IMP host tables */
-#define MT_ATABLE 7 /* address resolution tables */
-#define MT_SONAME 8 /* socket name */
-#define MT_SOOPTS 10 /* socket options */
-#define MT_FTABLE 11 /* fragment reassembly header */
-#define MT_RIGHTS 12 /* access rights */
-#define MT_IFADDR 13 /* interface address */
-#define MT_CONTROL 14 /* extra-data protocol message */
-#define MT_OOBDATA 15 /* expedited data */
-
-/* flags to m_get/MGET */
-#define M_DONTWAIT M_NOWAIT
-#define M_WAIT M_WAITOK
-
-/* Freelists:
- *
- * Normal mbuf clusters are normally treated as character arrays
- * after allocation, but use the first word of the buffer as a free list
- * pointer while on the free list.
- */
-union mcluster {
- union mcluster *mcl_next;
- char mcl_buf[MCLBYTES];
-};
-
-/*
- * mbuf utility macros:
- *
- * MBUFLOCK(code)
- * prevents a section of code from from being interrupted by network
- * drivers.
- */
-#define MBUFLOCK(code) \
- { int ms = splimp(); \
- { code } \
- splx(ms); \
- }
-
-/*
- * mbuf allocation/deallocation macros:
- *
- * MGET(struct mbuf *m, int how, int type)
- * allocates an mbuf and initializes it to contain internal data.
- *
- * MGETHDR(struct mbuf *m, int how, int type)
- * allocates an mbuf and initializes it to contain a packet header
- * and internal data.
- */
-#define MGET(m, how, type) { \
- int _ms = splimp(); \
- if (mmbfree == 0) \
- (void)m_mballoc(1, (how)); \
- if (((m) = mmbfree) != 0) { \
- mmbfree = (m)->m_next; \
- mbstat.m_mtypes[MT_FREE]--; \
- (m)->m_type = (type); \
- mbstat.m_mtypes[type]++; \
- (m)->m_next = (struct mbuf *)NULL; \
- (m)->m_nextpkt = (struct mbuf *)NULL; \
- (m)->m_data = (m)->m_dat; \
- (m)->m_flags = 0; \
- splx(_ms); \
- } else { \
- splx(_ms); \
- (m) = m_retry((how), (type)); \
- } \
-}
-
-#define MGETHDR(m, how, type) { \
- int _ms = splimp(); \
- if (mmbfree == 0) \
- (void)m_mballoc(1, (how)); \
- if (((m) = mmbfree) != 0) { \
- mmbfree = (m)->m_next; \
- mbstat.m_mtypes[MT_FREE]--; \
- (m)->m_type = (type); \
- mbstat.m_mtypes[type]++; \
- (m)->m_next = (struct mbuf *)NULL; \
- (m)->m_nextpkt = (struct mbuf *)NULL; \
- (m)->m_data = (m)->m_pktdat; \
- (m)->m_flags = M_PKTHDR; \
- splx(_ms); \
- } else { \
- splx(_ms); \
- (m) = m_retryhdr((how), (type)); \
- } \
-}
-
-/*
- * Mbuf cluster macros.
- * MCLALLOC(caddr_t p, int how) allocates an mbuf cluster.
- * MCLGET adds such clusters to a normal mbuf;
- * the flag M_EXT is set upon success.
- * MCLFREE releases a reference to a cluster allocated by MCLALLOC,
- * freeing the cluster if the reference count has reached 0.
- */
-#define MCLALLOC(p, how) \
- MBUFLOCK( \
- if (mclfree == 0) \
- (void)m_clalloc(1, (how)); \
- if (((p) = (caddr_t)mclfree) != 0) { \
- ++mclrefcnt[mtocl(p)]; \
- mbstat.m_clfree--; \
- mclfree = ((union mcluster *)(p))->mcl_next; \
- } \
- )
-
-#define MCLGET(m, how) \
- { MCLALLOC((m)->m_ext.ext_buf, (how)); \
- if ((m)->m_ext.ext_buf != NULL) { \
- (m)->m_data = (m)->m_ext.ext_buf; \
- (m)->m_flags |= M_EXT; \
- (m)->m_ext.ext_free = NULL; \
- (m)->m_ext.ext_ref = NULL; \
- (m)->m_ext.ext_size = MCLBYTES; \
- } \
- }
-
-#define MCLFREE(p) \
- MBUFLOCK ( \
- if (--mclrefcnt[mtocl(p)] == 0) { \
- ((union mcluster *)(p))->mcl_next = mclfree; \
- mclfree = (union mcluster *)(p); \
- mbstat.m_clfree++; \
- } \
- )
-
-/*
- * MFREE(struct mbuf *m, struct mbuf *n)
- * Free a single mbuf and associated external storage.
- * Place the successor, if any, in n.
- */
-#define MFREE(m, n) \
- MBUFLOCK( \
- mbstat.m_mtypes[(m)->m_type]--; \
- if ((m)->m_flags & M_EXT) { \
- if ((m)->m_ext.ext_free) \
- (*((m)->m_ext.ext_free))((m)->m_ext.ext_buf, \
- (m)->m_ext.ext_size); \
- else { \
- char *p = (m)->m_ext.ext_buf; \
- if (--mclrefcnt[mtocl(p)] == 0) { \
- ((union mcluster *)(p))->mcl_next = mclfree; \
- mclfree = (union mcluster *)(p); \
- mbstat.m_clfree++; \
- } \
- } \
- } \
- (n) = (m)->m_next; \
- (m)->m_type = MT_FREE; \
- mbstat.m_mtypes[MT_FREE]++; \
- (m)->m_next = mmbfree; \
- mmbfree = (m); \
- )
-
-/*
- * Copy mbuf pkthdr from from to to.
- * from must have M_PKTHDR set, and to must be empty.
- */
-#define M_COPY_PKTHDR(to, from) { \
- (to)->m_pkthdr = (from)->m_pkthdr; \
- (to)->m_flags = (from)->m_flags & M_COPYFLAGS; \
- (to)->m_data = (to)->m_pktdat; \
-}
-
-/*
- * Set the m_data pointer of a newly-allocated mbuf (m_get/MGET) to place
- * an object of the specified size at the end of the mbuf, longword aligned.
- */
-#define M_ALIGN(m, len) \
- { (m)->m_data += (MLEN - (len)) &~ (sizeof(long) - 1); }
-/*
- * As above, for mbufs allocated with m_gethdr/MGETHDR
- * or initialized by M_COPY_PKTHDR.
- */
-#define MH_ALIGN(m, len) \
- { (m)->m_data += (MHLEN - (len)) &~ (sizeof(long) - 1); }
-
-/*
- * Compute the amount of space available
- * before the current start of data in an mbuf.
- */
-#define M_LEADINGSPACE(m) \
- ((m)->m_flags & M_EXT ? /* (m)->m_data - (m)->m_ext.ext_buf */ 0 : \
- (m)->m_flags & M_PKTHDR ? (m)->m_data - (m)->m_pktdat : \
- (m)->m_data - (m)->m_dat)
-
-/*
- * Compute the amount of space available
- * after the end of data in an mbuf.
- */
-#define M_TRAILINGSPACE(m) \
- ((m)->m_flags & M_EXT ? (m)->m_ext.ext_buf + (m)->m_ext.ext_size - \
- ((m)->m_data + (m)->m_len) : \
- &(m)->m_dat[MLEN] - ((m)->m_data + (m)->m_len))
-
-/*
- * Arrange to prepend space of size plen to mbuf m.
- * If a new mbuf must be allocated, how specifies whether to wait.
- * If how is M_DONTWAIT and allocation fails, the original mbuf chain
- * is freed and m is set to NULL.
- */
-#define M_PREPEND(m, plen, how) { \
- if (M_LEADINGSPACE(m) >= (plen)) { \
- (m)->m_data -= (plen); \
- (m)->m_len += (plen); \
- } else \
- (m) = m_prepend((m), (plen), (how)); \
- if ((m) && (m)->m_flags & M_PKTHDR) \
- (m)->m_pkthdr.len += (plen); \
-}
-
-/* change mbuf to new type */
-#define MCHTYPE(m, t) { \
- MBUFLOCK(mbstat.m_mtypes[(m)->m_type]--; mbstat.m_mtypes[t]++;) \
- (m)->m_type = t;\
-}
-
-/* length to m_copy to copy all */
-#define M_COPYALL 1000000000
-
-/* compatibility with 4.3 */
-#define m_copy(m, o, l) m_copym((m), (o), (l), M_DONTWAIT)
-
-/*
- * Mbuf statistics.
- */
-struct mbstat {
- u_long m_mbufs; /* mbufs obtained from page pool */
- u_long m_clusters; /* clusters obtained from page pool */
- u_long m_spare; /* spare field */
- u_long m_clfree; /* free clusters */
- u_long m_drops; /* times failed to find space */
- u_long m_wait; /* times waited for space */
- u_long m_drain; /* times drained protocols for space */
- u_short m_mtypes[256]; /* type specific mbuf allocations */
-};
-
-#ifdef KERNEL
-extern struct mbuf *mbutl; /* virtual address of mclusters */
-extern char *mclrefcnt; /* cluster reference counts */
-extern struct mbstat mbstat;
-extern int nmbclusters;
-extern int nmbufs;
-extern struct mbuf *mmbfree;
-extern union mcluster *mclfree;
-extern int max_linkhdr; /* largest link-level header */
-extern int max_protohdr; /* largest protocol header */
-extern int max_hdr; /* largest link+protocol header */
-extern int max_datalen; /* MHLEN - max_hdr */
-extern int mbtypes[]; /* XXX */
-
-struct mbuf *m_copym __P((struct mbuf *, int, int, int));
-struct mbuf *m_copypacket __P((struct mbuf *, int));
-struct mbuf *m_devget __P((char *, int, int, struct ifnet *,
- void (*copy)(char *, caddr_t, u_int)));
-struct mbuf *m_free __P((struct mbuf *));
-struct mbuf *m_get __P((int, int));
-struct mbuf *m_getclr __P((int, int));
-struct mbuf *m_gethdr __P((int, int));
-struct mbuf *m_prepend __P((struct mbuf *,int,int));
-struct mbuf *m_pullup __P((struct mbuf *, int));
-struct mbuf *m_retry __P((int, int));
-struct mbuf *m_retryhdr __P((int, int));
-struct mbuf *m_split __P((struct mbuf *,int,int));
-void m_adj __P((struct mbuf *, int));
-void m_cat __P((struct mbuf *,struct mbuf *));
-int m_mballoc __P((int, int));
-int m_clalloc __P((int, int));
-void m_copyback __P((struct mbuf *, int, int, caddr_t));
-void m_copydata __P((struct mbuf *,int,int,caddr_t));
-void m_freem __P((struct mbuf *));
-void m_reclaim __P((void));
-
-#ifdef MBTYPES
-int mbtypes[] = { /* XXX */
- M_FREE, /* MT_FREE 0 should be on free list */
- M_MBUF, /* MT_DATA 1 dynamic (data) allocation */
- M_MBUF, /* MT_HEADER 2 packet header */
- M_SOCKET, /* MT_SOCKET 3 socket structure */
- M_PCB, /* MT_PCB 4 protocol control block */
- M_RTABLE, /* MT_RTABLE 5 routing tables */
- M_HTABLE, /* MT_HTABLE 6 IMP host tables */
- 0, /* MT_ATABLE 7 address resolution tables */
- M_MBUF, /* MT_SONAME 8 socket name */
- 0, /* 9 */
- M_SOOPTS, /* MT_SOOPTS 10 socket options */
- M_FTABLE, /* MT_FTABLE 11 fragment reassembly header */
- M_MBUF, /* MT_RIGHTS 12 access rights */
- M_IFADDR, /* MT_IFADDR 13 interface address */
- M_MBUF, /* MT_CONTROL 14 extra-data protocol message */
- M_MBUF, /* MT_OOBDATA 15 expedited data */
-#ifdef DATAKIT
- 25, 26, 27, 28, 29, 30, 31, 32 /* datakit ugliness */
-#endif
-};
-#endif
-#endif
-
-#endif /* !_SYS_MBUF_H_ */
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