1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 28 #pragma once 29 30 #ifndef DEBUGNET_INTERNAL 31 #error "Don't include this" 32 #endif 33 34 #define DNETDEBUG(f, ...) do { \ 35 if (debugnet_debug > 0) \ 36 printf(("%s: " f), __func__, ## __VA_ARGS__); \ 37 } while (0) 38 #define DNETDEBUG_IF(i, f, ...) do { \ 39 if (debugnet_debug > 0) \ 40 if_printf((i), ("%s: " f), __func__, ## __VA_ARGS__); \ 41 } while (0) 42 #define DNETDEBUGV(f, ...) do { \ 43 if (debugnet_debug > 1) \ 44 printf(("%s: " f), __func__, ## __VA_ARGS__); \ 45 } while (0) 46 47 enum dnet_pcb_st { 48 DN_STATE_INIT = 1, 49 DN_STATE_HAVE_GW_MAC, 50 DN_STATE_GOT_HERALD_PORT, 51 DN_STATE_REMOTE_CLOSED, 52 }; 53 54 struct debugnet_pcb { 55 uint64_t dp_rcvd_acks; 56 57 in_addr_t dp_client; 58 in_addr_t dp_server; 59 in_addr_t dp_gateway; 60 uint32_t dp_seqno; 61 62 struct ether_addr dp_gw_mac; 63 uint16_t dp_server_port; 64 65 struct ifnet *dp_ifp; 66 /* Saved driver if_input to restore on close. */ 67 void (*dp_drv_input)(struct ifnet *, struct mbuf *); 68 69 /* RX handler for bidirectional protocols. */ 70 int (*dp_rx_handler)(struct mbuf *); 71 72 /* Cleanup signal for bidirectional protocols. */ 73 void (*dp_finish_handler)(void); 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 97