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Annotation of Gnu-Mach/device/net_io.h, revision 1.1.1.3

1.1.1.2   root        1: /*
1.1       root        2:  * Mach Operating System
                      3:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
                      4:  * All Rights Reserved.
1.1.1.2   root        5:  *
1.1       root        6:  * Permission to use, copy, modify and distribute this software and its
                      7:  * documentation is hereby granted, provided that both the copyright
                      8:  * notice and this permission notice appear in all copies of the
                      9:  * software, derivative works or modified versions, and any portions
                     10:  * thereof, and that both notices appear in supporting documentation.
1.1.1.2   root       11:  *
1.1       root       12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
                     14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
1.1.1.2   root       15:  *
1.1       root       16:  * Carnegie Mellon requests users of this software to return to
1.1.1.2   root       17:  *
1.1       root       18:  *  Software Distribution Coordinator  or  [email protected]
                     19:  *  School of Computer Science
                     20:  *  Carnegie Mellon University
                     21:  *  Pittsburgh PA 15213-3890
1.1.1.2   root       22:  *
1.1       root       23:  * any improvements or extensions that they make and grant Carnegie Mellon
                     24:  * the rights to redistribute these changes.
                     25:  */
                     26: /*
                     27:  *     Author: David B. Golub, Carnegie Mellon University
                     28:  *     Date:   ll/89
                     29:  */
                     30: 
                     31: #ifndef        _DEVICE_NET_IO_H_
                     32: #define        _DEVICE_NET_IO_H_
                     33: 
                     34: /*
                     35:  * Utilities for playing with network messages.
                     36:  */
                     37: 
                     38: #include <mach/machine/vm_types.h>
                     39: #include <ipc/ipc_kmsg.h>
                     40: 
                     41: #include <kern/macro_help.h>
                     42: #include <kern/lock.h>
                     43: #include <kern/kalloc.h>
                     44: 
1.1.1.3 ! root       45: #include <device/if_hdr.h>
        !            46: #include <device/io_req.h>
1.1       root       47: #include <device/net_status.h>
                     48: 
                     49: /*
                     50:  * A network packet is wrapped in a kernel message while in
                     51:  * the kernel.
                     52:  */
                     53: 
                     54: #define        net_kmsg(kmsg)  ((net_rcv_msg_t)&(kmsg)->ikm_header)
                     55: 
                     56: /*
                     57:  * Interrupt routines may allocate and free net_kmsgs with these
                     58:  * functions.  net_kmsg_get may return IKM_NULL.
                     59:  */
                     60: 
1.1.1.3 ! root       61: extern ipc_kmsg_t net_kmsg_get(void);
        !            62: extern void net_kmsg_put(ipc_kmsg_t);
1.1       root       63: 
                     64: /*
                     65:  * Network utility routines.
                     66:  */
                     67: 
1.1.1.3 ! root       68: extern void net_ast();
        !            69: extern void net_packet(struct ifnet *, ipc_kmsg_t, unsigned int, boolean_t);
        !            70: extern void net_filter(ipc_kmsg_t, ipc_kmsg_queue_t);
        !            71: extern io_return_t net_getstat(struct ifnet *, dev_flavor_t, dev_status_t,
        !            72:                               natural_t *);
        !            73: extern io_return_t net_write(struct ifnet *, int (*)(), io_req_t);
1.1       root       74: 
                     75: /*
                     76:  * Non-interrupt code may allocate and free net_kmsgs with these functions.
                     77:  */
                     78: 
                     79: extern vm_size_t net_kmsg_size;
                     80: 
1.1.1.3 ! root       81: extern void net_kmsg_collect (void);
        !            82: 
1.1       root       83: #define net_kmsg_alloc()       ((ipc_kmsg_t) kalloc(net_kmsg_size))
                     84: #define net_kmsg_free(kmsg)    kfree((vm_offset_t) (kmsg), net_kmsg_size)
                     85: 
1.1.1.3 ! root       86: extern unsigned int            ntohl(unsigned int);
        !            87: extern unsigned short int      ntohs(unsigned short int);
        !            88: extern unsigned int            htonl(unsigned int);
        !            89: extern unsigned short int      htons(unsigned short int);
        !            90: 
1.1.1.2   root       91: #endif /* _DEVICE_NET_IO_H_ */

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