BytesGalore
7 years ago
10 changed files with 283 additions and 0 deletions
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/*
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* Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de> |
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* Copyright (C) 2016 Martin Landsmann <martin.landsmann@haw-hamburg.de> |
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* |
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* This file is subject to the terms and conditions of the GNU Lesser |
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* General Public License v2.1. See the file LICENSE in the top level |
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* directory for more details. |
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*/ |
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/**
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* @defgroup net_gnrc_ipv6_blacklist IPv6 address blacklist |
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* @ingroup net_gnrc_ipv6 |
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* @brief This refuses IPv6 addresses that are defined in this list. |
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* @{ |
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* |
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* @file |
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* @brief IPv6 blacklist definitions |
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* |
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* @author Martine Lenders <mlenders@inf.fu-berlin.de> |
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* @author Martin Landsmann <martin.landsmann@haw-hamburg.de> |
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*/ |
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#ifndef GNRC_IPV6_BLACKLIST_H_ |
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#define GNRC_IPV6_BLACKLIST_H_ |
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#include <stdbool.h> |
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#include "net/ipv6/addr.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/**
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* Maximum size of the blacklist. |
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*/ |
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#ifndef GNRC_IPV6_BLACKLIST_SIZE |
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#define GNRC_IPV6_BLACKLIST_SIZE (8) |
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#endif |
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/**
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* @brief Adds an IPv6 address to the blacklist. |
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* |
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* @param[in] addr An IPv6 address. |
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* |
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* @return 0, on success. |
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* @return -1, if blacklist is full. |
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*/ |
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int gnrc_ipv6_blacklist_add(const ipv6_addr_t *addr); |
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/**
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* @brief Removes an IPv6 address from the blacklist. |
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* |
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* Addresses not in the blacklist will be ignored. |
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* |
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* @param[in] addr An IPv6 address. |
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*/ |
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void gnrc_ipv6_blacklist_del(const ipv6_addr_t *addr); |
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/**
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* @brief Checks if an IPv6 address is blacklisted. |
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* |
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* @param[in] addr An IPv6 address. |
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* |
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* @return true, if @p addr is blacklisted. |
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* @return false, if @p addr is not blacklisted. |
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*/ |
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bool gnrc_ipv6_blacklisted(const ipv6_addr_t *addr); |
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/**
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* @brief Prints the blacklist. |
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*/ |
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void gnrc_ipv6_blacklist_print(void); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* GNRC_IPV6_BLACKLIST_H_ */ |
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/** @} */ |
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MODULE = gnrc_ipv6_blacklist
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include $(RIOTBASE)/Makefile.base |
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/*
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* Copyright (C) Freie Universität Berlin |
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* |
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* This file is subject to the terms and conditions of the GNU Lesser |
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* General Public License v2.1. See the file LICENSE in the top level |
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* directory for more details. |
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*/ |
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/**
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* @{ |
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* |
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* @file |
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* @author Martine Lenders <mlenders@inf.fu-berlin.de> |
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* @author Martin Landsmann <martin.landsmann@haw-hamburg.de> |
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*/ |
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#include <string.h> |
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#include "bitfield.h" |
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#include "net/gnrc/ipv6/blacklist.h" |
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#define ENABLE_DEBUG (0) |
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#include "debug.h" |
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ipv6_addr_t gnrc_ipv6_blacklist[GNRC_IPV6_BLACKLIST_SIZE]; |
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BITFIELD(gnrc_ipv6_blacklist_set, GNRC_IPV6_BLACKLIST_SIZE); |
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#if ENABLE_DEBUG |
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static char addr_str[IPV6_ADDR_MAX_STR_LEN]; |
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#endif |
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int gnrc_ipv6_blacklist_add(const ipv6_addr_t *addr) |
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{ |
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for (int i = 0; i < GNRC_IPV6_BLACKLIST_SIZE; i++) { |
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if (!bf_isset(gnrc_ipv6_blacklist_set, i)) { |
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bf_set(gnrc_ipv6_blacklist_set, i); |
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memcpy(&gnrc_ipv6_blacklist[i], addr, sizeof(*addr)); |
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DEBUG("IPv6 blacklist: blacklisted %s\n", |
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ipv6_addr_to_str(addr_str, addr, sizeof(addr_str))); |
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return 0; |
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} |
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} |
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return -1; |
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} |
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void gnrc_ipv6_blacklist_del(const ipv6_addr_t *addr) |
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{ |
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for (int i = 0; i < GNRC_IPV6_BLACKLIST_SIZE; i++) { |
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if (ipv6_addr_equal(addr, &gnrc_ipv6_blacklist[i])) { |
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bf_unset(gnrc_ipv6_blacklist_set, i); |
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DEBUG("IPv6 blacklist: unblacklisted %s\n", |
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ipv6_addr_to_str(addr_str, addr, sizeof(addr_str))); |
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} |
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} |
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} |
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bool gnrc_ipv6_blacklisted(const ipv6_addr_t *addr) |
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{ |
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for (int i = 0; i < GNRC_IPV6_BLACKLIST_SIZE; i++) { |
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if (bf_isset(gnrc_ipv6_blacklist_set, i) && |
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ipv6_addr_equal(addr, &gnrc_ipv6_blacklist[i])) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** @} */ |
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/*
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* Copyright (C) Freie Universität Berlin |
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* |
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* This file is subject to the terms and conditions of the GNU Lesser |
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* General Public License v2.1. See the file LICENSE in the top level |
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* directory for more details. |
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*/ |
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/**
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* @{ |
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* |
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* @file |
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* @author Martine Lenders <mlenders@inf.fu-berlin.de> |
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* @author Martin Landsmann <martin.landsmann@haw-hamburg.de> |
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*/ |
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#include <stdio.h> |
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#include "bitfield.h" |
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#include "net/ipv6/addr.h" |
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#include "net/gnrc/ipv6/blacklist.h" |
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extern ipv6_addr_t gnrc_ipv6_blacklist[GNRC_IPV6_BLACKLIST_SIZE]; |
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extern BITFIELD(gnrc_ipv6_blacklist_set, GNRC_IPV6_BLACKLIST_SIZE); |
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void gnrc_ipv6_blacklist_print(void) |
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{ |
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char addr_str[IPV6_ADDR_MAX_STR_LEN]; |
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for (int i = 0; i < GNRC_IPV6_BLACKLIST_SIZE; i++) { |
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if (bf_isset(gnrc_ipv6_blacklist_set, i)) { |
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puts(ipv6_addr_to_str(addr_str, &gnrc_ipv6_blacklist[i], sizeof(addr_str))); |
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} |
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} |
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} |
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/** @} */ |
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/*
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* Copyright (C) Freie Universität Berlin |
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* |
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* This file is subject to the terms and conditions of the GNU Lesser |
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* General Public License v2.1. See the file LICENSE in the top level |
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* directory for more details. |
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*/ |
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/**
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* @{ |
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* |
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* @file |
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* @author Martine Lenders <mlenders@inf.fu-berlin.de> |
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* @author Martin Landsmann <martin.landsmann@haw-hamburg.de> |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include "net/gnrc/ipv6/blacklist.h" |
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static void _usage(char *cmd) |
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{ |
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printf("usage: * %s\n", cmd); |
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puts(" Lists all addresses in the blacklist."); |
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printf(" * %s add <addr>\n", cmd); |
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puts(" Adds <addr> to the blacklist."); |
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printf(" * %s del <addr>\n", cmd); |
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puts(" Deletes <addr> from the blacklist."); |
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printf(" * %s help\n", cmd); |
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puts(" Print this."); |
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} |
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int _blacklist(int argc, char **argv) |
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{ |
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ipv6_addr_t addr; |
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if (argc < 2) { |
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gnrc_ipv6_blacklist_print(); |
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return 0; |
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} |
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else if (argc > 2) { |
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if (ipv6_addr_from_str(&addr, argv[2]) == NULL) { |
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_usage(argv[0]); |
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return 1; |
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} |
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} |
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if (strcmp("add", argv[1]) == 0) { |
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gnrc_ipv6_blacklist_add(&addr); |
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} |
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else if (strcmp("del", argv[1]) == 0) { |
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gnrc_ipv6_blacklist_del(&addr); |
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} |
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else if (strcmp("help", argv[1]) == 0) { |
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_usage(argv[0]); |
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} |
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else { |
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_usage(argv[0]); |
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return 1; |
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} |
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return 0; |
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} |
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/** @} */ |
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