565 lines
16 KiB
C
565 lines
16 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $FreeBSD$
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*
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*/
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/*
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* System Configuration
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* --------------------
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*
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* Porting aides
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*
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*/
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#ifndef _NETATM_PORT_H
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#define _NETATM_PORT_H
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/*
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* Try to ensure that this system is supported
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*/
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#if (defined(BSD) && (BSD >= 199103))
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/* 4.3 BSD Net2 based */
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#elif defined(sun)
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/* SunOS4.x */
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#else
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/* Ooops */
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#error "Undefined/unsupported system type"
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#endif
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/*
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* Kernel memory management
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*
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* KM_ALLOC(size, type, flags)
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* Returns an allocated kernel memory chunk of size bytes.
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* KM_FREE(addr, size, type)
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* Free a kernel memory chunk of size bytes.
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* KM_CMP(b1, b2, len)
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* Compares len bytes of data from b1 against b2.
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* KM_COPY(from, to, len)
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* Copies len bytes of data from from to to.
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* KM_ZERO(addr, len)
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* Zeros len bytes of data from addr.
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*
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*/
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#ifdef ATM_KERNEL
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#if (defined(BSD) && (BSD >= 199103))
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#include <sys/malloc.h>
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#define KM_ALLOC(size, type, flags) malloc((size), (type), (flags))
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#define KM_FREE(addr, size, type) free((addr), (type))
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#elif defined(sun)
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#include <sys/kmem_alloc.h>
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#define KM_ALLOC(size, type, flags) kmem_alloc(size)
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#define KM_FREE(addr, size, type) kmem_free((addr), (size))
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#endif
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#if defined(BSD)
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#define KM_CMP(b1, b2, len) bcmp((void *)(b1), (void *)(b2),\
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(len))
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#define KM_COPY(from, to, len) bcopy((void *)(from), (void *)(to),\
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(len))
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#define KM_ZERO(addr, len) bzero((void *)(addr), (len))
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#endif
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#define XM_COPY(f, t, l) KM_COPY((f), (t), (l))
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#else
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/*
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* User-space memory management
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*
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* UM_ALLOC(size) Returns an allocated kernel memory chunk of size bytes.
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* UM_FREE(addr) Free a kernel memory chunk of size bytes.
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* UM_COPY(from, to, len)
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* Copies len bytes of data from from to to.
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* UM_ZERO(addr, len) Zeros len bytes of data from addr.
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*
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*/
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#if (defined(BSD) && (BSD >= 199103))
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#define UM_ALLOC(size) malloc((size_t)(size))
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#define UM_FREE(addr) free((void *)(addr))
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#define UM_COPY(from, to, len) bcopy((void *)(from), (void *)(to),\
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(size_t)(len))
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#define UM_ZERO(addr, len) bzero((void *)(addr), (size_t)(len))
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#elif defined(sun)
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#define UM_ALLOC(size) malloc(size)
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#define UM_FREE(addr) free((char *)(addr))
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#define UM_COPY(from, to, len) bcopy((char *)(from), (char *)(to), (len))
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#define UM_ZERO(addr, len) bzero((char *)(addr), (len))
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#endif
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#define XM_COPY(f, t, l) UM_COPY((f), (t), (l))
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#endif /* ATM_KERNEL */
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#ifdef ATM_KERNEL
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/*
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* Kernel buffers
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*
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* KBuffer Typedef for a kernel buffer.
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*
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* KB_NEXT(bfr) Access next buffer in chain (r/w).
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* KB_LEN(bfr) Access length of data in this buffer (r/w).
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* KB_QNEXT(bfr) Access next buffer in queue (r/w).
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*
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* KB_ALLOC(bfr, size, flags, type)
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* Allocates a new kernel buffer of at least size bytes.
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* KB_ALLOCPKT(bfr, size, flags, type)
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* Allocates a new kernel packet header buffer of at
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* least size bytes.
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* KB_ALLOCEXT(bfr, size, flags, type)
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* Allocates a new kernel buffer with external storage
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* of at least size bytes.
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* KB_FREEONE(bfr, nxt) Free buffer bfr and set next buffer in chain in nxt.
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* KB_FREEALL(bfr) Free bfr's entire buffer chain.
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* KB_COPY(bfr, off, len, new, flags)
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* Copy len bytes of user data from buffer bfr starting at
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* byte offset off and return new buffer chain in new.
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* If len is KB_COPYALL, copy until end of chain.
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* KB_COPYDATA(bfr, off, len, datap)
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* Copy data from buffer bfr starting at byte offset off
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* for len bytes into the data area pointed to by datap.
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* Returns the number of bytes not copied to datap.
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* KB_PULLUP(bfr, n, new)
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* Get at least the first n bytes of data in the buffer
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* chain headed by bfr contiguous in the first buffer.
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* Returns the (potentially new) head of the chain in new.
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* On failure the chain is freed and NULL is returned.
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* KB_LINKHEAD(new, head)
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* Link the kernel buffer new at the head of the buffer
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* chain headed by head. If both new and head are
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* packet header buffers, new will become the packet
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* header for the chain.
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* KB_LINK(new, prev)
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* Link the kernel buffer new into the buffer chain
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* after the buffer prev.
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* KB_UNLINKHEAD(head, next)
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* Unlink the kernel buffer from the head of the buffer
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* chain headed by head. The buffer head will be freed
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* and the new chain head will be placed in next.
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* KB_UNLINK(old, prev, next)
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* Unlink the kernel buffer old with previous buffer prev
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* from its buffer chain. The following buffer in the
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* chain will be placed in next and the buffer old will
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* be freed.
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* KB_ISPKT(bfr) Tests whether bfr is a packet header buffer.
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* KB_ISEXT(bfr) Tests whether bfr has external storage.
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* KB_BFRSTART(bfr, x, t)
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* Sets x (cast to type t) to point to the start of the
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* buffer space in bfr.
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* KB_BFREND(bfr, x, t)
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* Sets x (cast to type t) to point one byte past the end
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* of the buffer space in bfr.
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* KB_BFRLEN(bfr) Returns length of buffer space in bfr.
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* KB_DATASTART(bfr, x, t)
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* Sets x (cast to type t) to point to the start of the
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* buffer data contained in bfr.
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* KB_DATAEND(bfr, x, t)
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* Sets x (cast to type t) to point one byte past the end
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* of the buffer data contained in bfr.
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* KB_HEADSET(bfr, n) Sets the start address for buffer data in buffer bfr to
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* n bytes from the beginning of the buffer space.
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* KB_HEADMOVE(bfr, n) Adjust buffer data controls to move data down (n > 0)
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* or up (n < 0) n bytes in the buffer bfr.
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* KB_HEADADJ(bfr, n) Adjust buffer data controls to add (n > 0) or subtract
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* (n < 0) n bytes of data to/from the beginning of bfr.
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* KB_TAILADJ(bfr, n) Adjust buffer data controls to add (n > 0) or subtract
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* (n < 0) n bytes of data to/from the end of bfr.
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* KB_TAILALIGN(bfr, n) Set buffer data controls to place an object of size n
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* at the end of bfr, longword aligned.
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* KB_HEADROOM(bfr, n) Set n to the amount of buffer space available before
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* the start of data in bfr.
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* KB_TAILROOM(bfr, n) Set n to the amount of buffer space available after
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* the end of data in bfr.
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* KB_PLENGET(bfr, n) Set n to bfr's packet length.
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* KB_PLENSET(bfr, n) Set bfr's packet length to n.
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* KB_PLENADJ(bfr, n) Adjust total packet length by n bytes.
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*
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*/
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#if defined(BSD)
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#include <sys/mbuf.h>
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typedef struct mbuf KBuffer;
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#define KB_F_WAIT M_WAIT
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#define KB_F_NOWAIT M_DONTWAIT
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#define KB_T_HEADER MT_HEADER
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#define KB_T_DATA MT_DATA
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#define KB_COPYALL M_COPYALL
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#if BSD >= 199103
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#define KB_NEXT(bfr) (bfr)->m_next
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#define KB_LEN(bfr) (bfr)->m_len
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#define KB_QNEXT(bfr) (bfr)->m_nextpkt
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#define KB_ALLOC(bfr, size, flags, type) { \
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if ((size) <= MLEN) { \
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MGET((bfr), (flags), (type)); \
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} else \
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(bfr) = NULL; \
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}
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#define KB_ALLOCPKT(bfr, size, flags, type) { \
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if ((size) <= MHLEN) { \
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MGETHDR((bfr), (flags), (type)); \
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} else \
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(bfr) = NULL; \
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}
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#define KB_ALLOCEXT(bfr, size, flags, type) { \
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if ((size) <= MCLBYTES) { \
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MGET((bfr), (flags), (type)); \
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if ((bfr) != NULL) { \
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MCLGET((bfr), (flags)); \
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if (((bfr)->m_flags & M_EXT) == 0) { \
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m_freem((bfr)); \
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(bfr) = NULL; \
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} \
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} \
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} else \
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(bfr) = NULL; \
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}
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#define KB_FREEONE(bfr, nxt) { \
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(nxt) = m_free(bfr); \
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}
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#define KB_FREEALL(bfr) { \
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m_freem(bfr); \
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}
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#define KB_COPY(bfr, off, len, new, flags) { \
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(new) = m_copym((bfr), (off), (len), (flags)); \
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}
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#define KB_COPYDATA(bfr, off, len, datap) \
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(m_copydata((bfr), (off), (len), (datap)), 0)
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#define KB_PULLUP(bfr, n, new) { \
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(new) = m_pullup((bfr), (n)); \
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}
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#define KB_LINKHEAD(new, head) { \
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if ((head) && KB_ISPKT(new) && KB_ISPKT(head)) {\
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M_COPY_PKTHDR((new), (head)); \
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(head)->m_flags &= ~M_PKTHDR; \
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} \
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(new)->m_next = (head); \
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}
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#define KB_LINK(new, prev) { \
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(new)->m_next = (prev)->m_next; \
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(prev)->m_next = (new); \
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}
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#define KB_UNLINKHEAD(head, next) { \
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MFREE((head), (next)); \
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}
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#define KB_UNLINK(old, prev, next) { \
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MFREE((old), (next)); \
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(prev)->m_next = (next); \
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}
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#define KB_ISPKT(bfr) (((bfr)->m_flags & M_PKTHDR) != 0)
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#define KB_ISEXT(bfr) (((bfr)->m_flags & M_EXT) != 0)
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#define KB_BFRSTART(bfr, x, t) { \
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if ((bfr)->m_flags & M_EXT) \
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(x) = (t)((bfr)->m_ext.ext_buf); \
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else if ((bfr)->m_flags & M_PKTHDR) \
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(x) = (t)(&(bfr)->m_pktdat); \
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else \
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(x) = (t)((bfr)->m_dat); \
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}
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#define KB_BFREND(bfr, x, t) { \
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if ((bfr)->m_flags & M_EXT) \
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(x) = (t)((bfr)->m_ext.ext_buf + (bfr)->m_ext.ext_size);\
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else if ((bfr)->m_flags & M_PKTHDR) \
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(x) = (t)(&(bfr)->m_pktdat + MHLEN); \
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else \
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(x) = (t)((bfr)->m_dat + MLEN); \
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}
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#define KB_BFRLEN(bfr) \
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(((bfr)->m_flags & M_EXT) ? (bfr)->m_ext.ext_size : \
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(((bfr)->m_flags & M_PKTHDR) ? MHLEN : MLEN))
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#define KB_DATASTART(bfr, x, t) { \
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(x) = mtod((bfr), t); \
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}
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#define KB_DATAEND(bfr, x, t) { \
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(x) = (t)(mtod((bfr), caddr_t) + (bfr)->m_len); \
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}
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#define KB_HEADSET(bfr, n) { \
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if ((bfr)->m_flags & M_EXT) \
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(bfr)->m_data = (bfr)->m_ext.ext_buf + (n); \
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else if ((bfr)->m_flags & M_PKTHDR) \
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(bfr)->m_data = (bfr)->m_pktdat + (n); \
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else \
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(bfr)->m_data = (bfr)->m_dat + (n); \
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}
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#define KB_HEADMOVE(bfr, n) { \
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(bfr)->m_data += (n); \
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}
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#define KB_HEADADJ(bfr, n) { \
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(bfr)->m_len += (n); \
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(bfr)->m_data -= (n); \
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}
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#define KB_TAILADJ(bfr, n) { \
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(bfr)->m_len += (n); \
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}
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#define KB_TAILALIGN(bfr, n) { \
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(bfr)->m_len = (n); \
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if ((bfr)->m_flags & M_EXT) \
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(bfr)->m_data = (caddr_t)(((u_int)(bfr)->m_ext.ext_buf \
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+ (bfr)->m_ext.ext_size - (n)) & ~(sizeof(long) - 1));\
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else \
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(bfr)->m_data = (caddr_t)(((u_int)(bfr)->m_dat + MLEN - (n)) \
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& ~(sizeof(long) - 1)); \
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}
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#define KB_HEADROOM(bfr, n) { \
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/* n = M_LEADINGSPACE(bfr) XXX */ \
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(n) = ((bfr)->m_flags & M_EXT ? (bfr)->m_data - (bfr)->m_ext.ext_buf : \
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(bfr)->m_flags & M_PKTHDR ? (bfr)->m_data - (bfr)->m_pktdat : \
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(bfr)->m_data - (bfr)->m_dat); \
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}
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#define KB_TAILROOM(bfr, n) { \
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(n) = M_TRAILINGSPACE(bfr); \
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}
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#define KB_PLENGET(bfr, n) { \
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(n) = (bfr)->m_pkthdr.len; \
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}
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#define KB_PLENSET(bfr, n) { \
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(bfr)->m_pkthdr.len = (n); \
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}
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#define KB_PLENADJ(bfr, n) { \
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(bfr)->m_pkthdr.len += (n); \
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}
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#else /* ! BSD >= 199103 */
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#define KB_NEXT(bfr) (bfr)->m_next
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#define KB_LEN(bfr) (bfr)->m_len
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#define KB_QNEXT(bfr) (bfr)->m_act
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#define KB_ALLOC(bfr, size, flags, type) { \
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if ((size) <= MLEN) { \
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MGET((bfr), (flags), (type)); \
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} else \
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(bfr) = NULL; \
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}
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#define KB_ALLOCPKT(bfr, size, flags, type) { \
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if ((size) <= MLEN) { \
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MGET((bfr), (flags), (type)); \
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} else \
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(bfr) = NULL; \
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}
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#define KB_ALLOCEXT(bfr, size, flags, type) { \
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if ((size) <= MCLBYTES) { \
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MGET((bfr), (flags), (type)); \
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if ((bfr) != NULL) { \
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MCLGET(bfr); \
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if ((bfr)->m_len != MCLBYTES) { \
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m_freem((bfr)); \
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(bfr) = NULL; \
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} \
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} \
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} else \
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(bfr) = NULL; \
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}
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#define KB_FREEONE(bfr, nxt) { \
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(nxt) = m_free(bfr); \
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}
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#define KB_FREEALL(bfr) { \
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m_freem(bfr); \
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}
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#define KB_COPY(bfr, off, len, new, flags) { \
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(new) = m_copy((bfr), (off), (len)); \
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}
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#define KB_COPYDATA(bfr, off, len, datap) \
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m_cpytoc((bfr), (off), (len), (datap))
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#define KB_PULLUP(bfr, n, new) { \
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(new) = m_pullup((bfr), (n)); \
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}
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#define KB_LINKHEAD(new, head) { \
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(new)->m_next = (head); \
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}
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#define KB_LINK(new, prev) { \
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(new)->m_next = (prev)->m_next; \
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(prev)->m_next = (new); \
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}
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#define KB_UNLINKHEAD(head, next) { \
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MFREE((head), (next)); \
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}
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#define KB_UNLINK(old, prev, next) { \
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MFREE((old), (next)); \
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(prev)->m_next = (next); \
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}
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#define KB_ISPKT(bfr) (0)
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#define KB_ISEXT(bfr) M_HASCL(bfr)
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#define KB_BFRSTART(bfr, x, t) { \
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if (M_HASCL(bfr)) { \
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if ((bfr)->m_cltype == MCL_STATIC) \
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(x) = (t)(mtod((bfr), int) & ~(MCLBYTES - 1)); \
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else \
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(x) = (t)NULL; \
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} else \
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(x) = (t)((bfr)->m_dat); \
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}
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#define KB_BFREND(bfr, x, t) { \
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if (M_HASCL(bfr)) { \
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if ((bfr)->m_cltype == MCL_STATIC) \
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(x) = (t)((mtod((bfr), int) & ~(MCLBYTES - 1)) \
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+ MCLBYTES); \
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else \
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(x) = (t)NULL; \
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} else \
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(x) = (t)((bfr)->m_dat + MLEN); \
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}
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#define KB_BFRLEN(bfr) \
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(M_HASCL(bfr) ? (((bfr)->m_cltype == MCL_STATIC) ? MCLBYTES : 0) : MLEN)
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#define KB_DATASTART(bfr, x, t) { \
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(x) = mtod((bfr), t); \
|
|
}
|
|
#define KB_DATAEND(bfr, x, t) { \
|
|
(x) = (t)(mtod((bfr), caddr_t) + (bfr)->m_len); \
|
|
}
|
|
#define KB_HEADSET(bfr, n) { \
|
|
if (M_HASCL(bfr)) { \
|
|
/* Assume cluster buffer is empty XXX */\
|
|
(bfr)->m_off += (n); \
|
|
} else \
|
|
(bfr)->m_off = MMINOFF + (n); \
|
|
}
|
|
#define KB_HEADMOVE(bfr, n) { \
|
|
(bfr)->m_off += (n); \
|
|
}
|
|
#define KB_HEADADJ(bfr, n) { \
|
|
(bfr)->m_len += (n); \
|
|
(bfr)->m_off -= (n); \
|
|
}
|
|
#define KB_TAILADJ(bfr, n) { \
|
|
(bfr)->m_len += (n); \
|
|
}
|
|
#define KB_TAILALIGN(bfr, n) { \
|
|
(bfr)->m_len = (n); \
|
|
if (M_HASCL(bfr)) { \
|
|
if ((bfr)->m_cltype == MCL_STATIC) \
|
|
(bfr)->m_off = (int)(((mtod((bfr), int) \
|
|
& ~(MCLBYTES - 1)) + MCLBYTES - (n)) \
|
|
& ~(sizeof(long) - 1)) - (int)(bfr); \
|
|
/* Out of luck for loaned buffers */ \
|
|
} else \
|
|
(bfr)->m_off = (MMAXOFF - (n)) & ~(sizeof(long) - 1); \
|
|
}
|
|
#define KB_HEADROOM(bfr, n) { \
|
|
if (M_HASCL(bfr)) { \
|
|
if ((bfr)->m_cltype == MCL_STATIC) \
|
|
(n) = mtod((bfr), int) & (MCLBYTES - 1); \
|
|
else \
|
|
(n) = 0; \
|
|
} else \
|
|
(n) = (bfr)->m_off - MMINOFF; \
|
|
}
|
|
#define KB_TAILROOM(bfr, n) { \
|
|
if (M_HASCL(bfr)) { \
|
|
if ((bfr)->m_cltype == MCL_STATIC) \
|
|
(n) = MCLBYTES - ((mtod((bfr), int) + (bfr)->m_len) \
|
|
& (MCLBYTES - 1)); \
|
|
else \
|
|
(n) = 0; \
|
|
} else \
|
|
(n) = MMAXOFF - ((bfr)->m_off + (bfr)->m_len); \
|
|
}
|
|
#define KB_PLENGET(bfr, n) { \
|
|
struct mbuf *zz; \
|
|
for ((n) = 0, zz = (bfr); zz; zz = zz->m_next) \
|
|
(n) += zz->m_len; \
|
|
}
|
|
#define KB_PLENSET(bfr, n) { \
|
|
}
|
|
#define KB_PLENADJ(bfr, n) { \
|
|
}
|
|
|
|
|
|
#endif /* ! BSD >= 199103 */
|
|
|
|
#endif /* defined(BSD) */
|
|
|
|
|
|
/*
|
|
* Kernel time
|
|
*
|
|
* KTimeout_ret Typedef for timeout() function return
|
|
*
|
|
* KT_TIME(t) Sets t to the current time.
|
|
*
|
|
*/
|
|
#if (defined(BSD) && (BSD >= 199306))
|
|
typedef void KTimeout_ret;
|
|
#else
|
|
typedef int KTimeout_ret;
|
|
#endif
|
|
#if (defined(BSD) && (BSD >= 199103))
|
|
#define KT_TIME(t) microtime(&t)
|
|
#elif defined(sun)
|
|
#define KT_TIME(t) uniqtime(&t)
|
|
#else
|
|
#define KT_TIME(t) ((t) = time)
|
|
#endif
|
|
|
|
#endif /* ATM_KERNEL */
|
|
|
|
#ifndef NTOHL
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
#define NTOHL(x) (x)
|
|
#define NTOHS(x) (x)
|
|
#define HTONL(x) (x)
|
|
#define HTONS(x) (x)
|
|
#else
|
|
#define NTOHL(x) (x) = ntohl((u_long)(x))
|
|
#define NTOHS(x) (x) = ntohs((u_short)(x))
|
|
#define HTONL(x) (x) = htonl((u_long)(x))
|
|
#define HTONS(x) (x) = htons((u_short)(x))
|
|
#endif
|
|
#endif /* NTOHL */
|
|
|
|
#ifndef MAX
|
|
#define MAX(a,b) max((a),(b))
|
|
#endif
|
|
#ifndef MIN
|
|
#define MIN(a,b) min((a),(b))
|
|
#endif
|
|
|
|
#if (!(defined(BSD) && (BSD >= 199306)))
|
|
#ifndef __BIT_TYPES_DEFINED__
|
|
#define __BIT_TYPES_DEFINED__
|
|
typedef char int8_t;
|
|
typedef unsigned char u_int8_t;
|
|
typedef short int16_t;
|
|
typedef unsigned short u_int16_t;
|
|
typedef int int32_t;
|
|
typedef unsigned int u_int32_t;
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* _NETATM_PORT_H */
|