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ng_ndp/ng_sixlowpan: import 6LoWPAN-ND host behavior
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de> | ||
| * | ||
| * This file is subject to the terms and conditions of the GNU Lesser | ||
| * General Public License v2.1. See the file LICENSE in the top level | ||
| * directory for more details. | ||
| */ | ||
|
|
||
| /** | ||
| * @defgroup net_ng_sixlowpan_nd Neighbor Discovery Optimization for 6LoWPAN | ||
| * @ingroup net_ng_sixlowpan | ||
| * @brief Implements Neighbor Discovery Optimization for 6LoWPAN. | ||
| * @see <a href="https://tools.ietf.org/html/rfc6775"> | ||
| * RFC 6775 | ||
| * </a> | ||
| * @{ | ||
| * | ||
| * @file | ||
| * @brief 6LoWPAN Neighbor Discovery definitions. | ||
| * | ||
| * @author Martine Lenders <mlenders@inf.fu-berlin.de> | ||
| */ | ||
| #ifndef NG_SIXLOWPAN_ND_H_ | ||
| #define NG_SIXLOWPAN_ND_H_ | ||
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|
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| #include <stdint.h> | ||
|
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| #include "net/eui64.h" | ||
| #include "net/ng_ipv6/addr.h" | ||
| #include "net/ng_netapi.h" | ||
| #include "net/ng_netconf.h" | ||
|
|
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| #include "net/ng_sixlowpan/nd/rtr.h" | ||
| #include "net/ng_sixlowpan/nd/types.h" | ||
|
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
|
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| /** | ||
| * @brief Message type for next unicast router solicitation. | ||
| */ | ||
| #define NG_SIXLOWPAN_ND_MSG_UC_RTR_SOL (0x0221) | ||
|
|
||
| /** | ||
| * @brief Registration Lifetime of an address in minutes. | ||
| * This lifetime is highly depenent on the sleep cycles of the node and should | ||
| * be set to a value bigger than these sleep cycles. | ||
| * | ||
| * @see <a href="https://tools.ietf.org/html/rfc6775#section-5.8.1"> | ||
| * RFC 6775, section 5.8.1 | ||
| * </a> | ||
| */ | ||
| #ifndef NG_SIXLOWPAN_ND_REG_LTIME | ||
| #define NG_SIXLOWPAN_ND_REG_LTIME (5U) | ||
| #endif | ||
|
|
||
| /** | ||
| * @brief Interval in seconds between initial router solicitation | ||
| * transmissions | ||
| * | ||
| * @see @ref NG_NDP_MAX_RTR_SOL_INT | ||
| */ | ||
| #define NG_SIXLOWPAN_ND_MAX_RTR_SOL_INT (10U) | ||
|
|
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| /** | ||
| * @brief Truncation for truncated binary exponential backoff after initial | ||
| * resends. | ||
| * | ||
| * @note The RFC is a little ambiguous since the truncation should be a | ||
| * binary exponent, while the | ||
| * | ||
| * @see <a href="https://tools.ietf.org/html/rfc6775#section-5.3"> | ||
| * RFC 6775, section 5.3 | ||
| * </a> | ||
| */ | ||
| #define NG_SIXLOWPAN_ND_MAX_RTR_SOL_INT_TRUNC (6U) | ||
|
|
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| /** | ||
| * @brief Binary exponential backoff for router solicitation | ||
| * re-sends. | ||
| * | ||
| * @param[in] base_sec Base time in seconds for the backoff. | ||
| * @param[in] exp Exponent for the factor of the backoff. | ||
| * | ||
| * @return The resulting backoff time in seconds. | ||
| */ | ||
| uint32_t ng_sixlowpan_nd_beb(uint32_t base_sec, uint8_t exp); | ||
|
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| void ng_sixlowpan_nd_l2addr_resolution(uint8_t *l2addr, uint8_t *l2addr_len, | ||
| ng_ipv6_addr_t *next_hop_ip); | ||
|
|
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| /** | ||
| * @brief Handles 6LoWPAN context option. | ||
| * | ||
| * @param[in] icmpv6_type Message type of the ICMPv6 message that contained. | ||
| * this message. | ||
| * @param[in] 6ctx_opt The 6LoWPAN context option. | ||
| * | ||
| * @return true, when 6LoWPAN context option was correct. | ||
| * @return false, when it was incorrect. | ||
| */ | ||
| bool ng_sixlowpan_nd_opt_6ctx_handle(uint8_t icmpv6_type, | ||
| ng_sixlowpan_nd_opt_6ctx_t *ctx_opt, | ||
| uint16_t rtr_ltime); | ||
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| uint8_t ng_sixlowpan_nd_opt_ar_handle(kernel_pid_t iface, ng_ipv6_hdr_t *ipv6, | ||
| uint8_t icmpv6_type, | ||
| ng_sixlowpan_nd_opt_ar_t *ar_opt, | ||
| ng_ndp_opt_t *sl2a_opt); | ||
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| ng_pktsnip_t *ng_sixlowpan_nd_opt_ar_build(uint8_t status, uint16_t ltime, | ||
| eui64_t *eui64, | ||
| ng_pktsnip_t *next); | ||
|
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| static inline ng_pktsnip_t *ng_sixlowpan_nd_opt_ar_iface_build(kernel_pid_t iface, | ||
| uint8_t status, ng_pktsnip_t *next) | ||
| { | ||
| eui64_t eui64; | ||
|
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| if (ng_netapi_get(iface, NETCONF_OPT_ADDRESS_LONG, 0, &eui64, | ||
| sizeof(eui64)) < 0) { | ||
| return NULL; | ||
| } | ||
|
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| return ng_sixlowpan_nd_opt_ar_build(0, NG_SIXLOWPAN_ND_REG_LTIME, &eui64, | ||
| next); | ||
| } | ||
|
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| /* TODO: wake-up behavior */ | ||
|
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| #ifdef __cplusplus | ||
| } | ||
| #endif | ||
|
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| #endif /* NG_SIXLOWPAN_ND_H_ */ | ||
| /** @} */ |
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