a59eafbc9d
* fix sdmmc config * Fix warnings in EEPROM from @Curclamas * remove leftover TAG in EEPROM * Initial add of @stickbreaker i2c * Add log_n * fix warnings when log is off * i2c code clean up and reorganization * add flags to interrupt allocator * fix sdmmc config * Fix warnings in EEPROM from @Curclamas * remove leftover TAG in EEPROM * fix errors with latest IDF * fix debug optimization (#1365) incorrect optimization for debugging tick markers. * Fix some missing BT header * Change BTSerial log calls * Update BLE lib * Arduino-ESP32 release management scripted (#1515) * Calculate an absolute path for a custom partitions table (#1452) * * Arduino-ESP32 release management scripted (ready-to-merge) * * secure env for espressif/arduino-esp32 * * build tests enabled * gitter webhook enabled * * gitter room link fixed * better comment * * filepaths fixed * BT Serial adjustments * * don't run sketch builds & tests for tagged builds * Return false from WiFi.hostByName() if hostname is not resolved * Free BT Memory when BT is not used * WIFI_MODE_NULL is not supported anymore * Select some key examples to build with PlatformIO to save some time * Update BLE lib * Fixed BLE lib * Major WiFi overhaul - auto reconnect on connection loss now works - moved to event groups - some code clean up and procedure optimizations - new methods to get a more elaborate system ststus * Add cmake tests to travis * Add initial AsyncUDP * Add NetBIOS lib and fix CMake includes * Add Initial WebServer * Fix WebServer and examples * travis not quiting on build fail * Try different travis build * Update IDF to aaf1239 * Fix WPS Example * fix script permission and add some fail tests to sketch builder * Add missing space in WiFiClient::write(Stream &stream)
125 lines
4.8 KiB
C
125 lines
4.8 KiB
C
/**
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* @file
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*
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* AutoIP Automatic LinkLocal IP Configuration
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*/
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/*
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*
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* Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Dominik Spies <kontakt@dspies.de>
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*
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* This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
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* with RFC 3927.
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*
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*
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* Please coordinate changes and requests with Dominik Spies
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* <kontakt@dspies.de>
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*/
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#ifndef LWIP_HDR_AUTOIP_H
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#define LWIP_HDR_AUTOIP_H
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#include "lwip/opt.h"
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#if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */
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#include "lwip/netif.h"
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/* #include "lwip/udp.h" */
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#include "netif/etharp.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* AutoIP Timing */
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#define AUTOIP_TMR_INTERVAL 100
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#define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL)
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/* RFC 3927 Constants */
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#define PROBE_WAIT 1 /* second (initial random delay) */
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#define PROBE_MIN 1 /* second (minimum delay till repeated probe) */
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#define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */
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#define PROBE_NUM 3 /* (number of probe packets) */
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#define ANNOUNCE_NUM 2 /* (number of announcement packets) */
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#define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */
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#define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */
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#define MAX_CONFLICTS LWIP_AUTOIP_MAX_CONFLICTS /* (max conflicts before rate limiting) */
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#define RATE_LIMIT_INTERVAL LWIP_AUTOIP_RATE_LIMIT_INTERVAL /* seconds (delay between successive attempts) */
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#define DEFEND_INTERVAL 10 /* seconds (min. wait between defensive ARPs) */
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/* AutoIP client states */
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#define AUTOIP_STATE_OFF 0
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#define AUTOIP_STATE_PROBING 1
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#define AUTOIP_STATE_ANNOUNCING 2
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#define AUTOIP_STATE_BOUND 3
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struct autoip
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{
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ip4_addr_t llipaddr; /* the currently selected, probed, announced or used LL IP-Address */
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u8_t state; /* current AutoIP state machine state */
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u8_t sent_num; /* sent number of probes or announces, dependent on state */
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u16_t ttw; /* ticks to wait, tick is AUTOIP_TMR_INTERVAL long */
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u8_t lastconflict; /* ticks until a conflict can be solved by defending */
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u8_t tried_llipaddr; /* total number of probed/used Link Local IP-Addresses */
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};
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#define autoip_init() /* Compatibility define, no init needed. */
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/** Set a struct autoip allocated by the application to work with */
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void autoip_set_struct(struct netif *netif, struct autoip *autoip);
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/** Remove a struct autoip previously set to the netif using autoip_set_struct() */
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#define autoip_remove_struct(netif) do { (netif)->autoip = NULL; } while (0)
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/** Start AutoIP client */
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err_t autoip_start(struct netif *netif);
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/** Stop AutoIP client */
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err_t autoip_stop(struct netif *netif);
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/** Handles every incoming ARP Packet, called by etharp_arp_input */
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void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr);
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/** Has to be called in loop every AUTOIP_TMR_INTERVAL milliseconds */
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void autoip_tmr(void);
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/** Handle a possible change in the network configuration */
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void autoip_network_changed(struct netif *netif);
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/** check if AutoIP supplied netif->ip_addr */
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u8_t autoip_supplied_address(struct netif *netif);
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_IPV4 && LWIP_AUTOIP */
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#endif /* LWIP_HDR_AUTOIP_H */
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