debugnet_int.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2019 Isilon Systems, LLC.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD$
   28  */
   29 
   30 #pragma once
   31 
   32 #ifndef DEBUGNET_INTERNAL
   33 #error "Don't include this"
   34 #endif
   35 
   36 #define DNETDEBUG(f, ...) do {                                          \
   37         if (debugnet_debug > 0)                                         \
   38                 printf(("%s: " f), __func__, ## __VA_ARGS__);           \
   39 } while (0)
   40 #define DNETDEBUG_IF(i, f, ...) do {                                    \
   41         if (debugnet_debug > 0)                                         \
   42                 if_printf((i), ("%s: " f), __func__, ## __VA_ARGS__);   \
   43 } while (0)
   44 #define DNETDEBUGV(f, ...) do {                                         \
   45         if (debugnet_debug > 1)                                         \
   46                 printf(("%s: " f), __func__, ## __VA_ARGS__);           \
   47 } while (0)
   48 
   49 enum dnet_pcb_st {
   50         DN_STATE_INIT = 1,
   51         DN_STATE_HAVE_GW_MAC,
   52         DN_STATE_GOT_HERALD_PORT,
   53         DN_STATE_REMOTE_CLOSED,
   54 };
   55 
   56 struct debugnet_pcb {
   57         uint64_t                dp_rcvd_acks;
   58 
   59         in_addr_t               dp_client;
   60         in_addr_t               dp_server;
   61         in_addr_t               dp_gateway;
   62         uint32_t                dp_seqno;
   63 
   64         struct ether_addr       dp_gw_mac;
   65         uint16_t                dp_server_port;
   66 
   67         struct ifnet            *dp_ifp;
   68         /* Saved driver if_input to restore on close. */
   69         void                    (*dp_drv_input)(struct ifnet *, struct mbuf *);
   70 
   71         /* RX handler for bidirectional protocols. */
   72         void                    (*dp_rx_handler)(struct debugnet_pcb *,
   73                                     struct mbuf **);
   74 
   75         enum dnet_pcb_st        dp_state;
   76         uint16_t                dp_client_port;
   77         bool                    dp_event_started;
   78 };
   79 
   80 /* TODO(CEM): Obviate this assertion by using a BITSET(9) for acks. */
   81 CTASSERT(sizeof(((struct debugnet_pcb *)0)->dp_rcvd_acks) * NBBY >=
   82     DEBUGNET_MAX_IN_FLIGHT);
   83 
   84 extern unsigned debugnet_debug;
   85 SYSCTL_DECL(_net_debugnet);
   86 
   87 int debugnet_ether_output(struct mbuf *, struct ifnet *, struct ether_addr,
   88     u_short);
   89 void debugnet_handle_udp(struct debugnet_pcb *, struct mbuf **);
   90 
   91 #ifdef INET
   92 int debugnet_arp_gw(struct debugnet_pcb *);
   93 void debugnet_handle_arp(struct debugnet_pcb *, struct mbuf **);
   94 void debugnet_handle_ip(struct debugnet_pcb *, struct mbuf **);
   95 int debugnet_ip_output(struct debugnet_pcb *, struct mbuf *);
   96 #endif

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FreeBSD/Linux Kernel Cross Reference sys/net/debugnet_int.h

FreeBSD/Linux Kernel Cross Reference
sys/net/debugnet_int.h