-
Notifications
You must be signed in to change notification settings - Fork 2k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
gnrc_sixlowpan_nd_router: initial import of router behavior of 6LoWPAN-ND #3749
Merged
OlegHahm
merged 2 commits into
RIOT-OS:master
from
miri64:gnrc_sixlowpan_nd_router/feat/initial
Sep 10, 2015
Merged
Changes from all commits
Commits
Show all changes
2 commits
Select commit
Hold shift + click to select a range
File filter
Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| /* | ||
| * 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 gnrc_sixlowpan_nd_router Router-part of 6LoWPAN-ND | ||
| * @ingroup gnrc_sixlowpan_nd | ||
| * @brief Router-part of 6LoWPAN-ND | ||
| * @{ | ||
| * | ||
| * @file | ||
| * @brief Router-definitions for 6LoWPAN-ND. | ||
| * | ||
| * @author Martine Lenders <mlenders@inf.fu-berlin.de> | ||
| */ | ||
| #ifndef GNRC_SIXLOWPAN_ND_ROUTER_H_ | ||
| #define GNRC_SIXLOWPAN_ND_ROUTER_H_ | ||
|
|
||
| #include <stdbool.h> | ||
|
|
||
| #include "bitfield.h" | ||
| #include "net/gnrc/sixlowpan/ctx.h" | ||
| #include "net/gnrc/ipv6/netif.h" | ||
|
|
||
| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
|
|
||
| /** | ||
| * @brief Number of registerable border routers | ||
| * | ||
| * @note More than one border routers require some way of synchronization | ||
| * of the context information (see | ||
| * [RFC 6775, section 8.1](https://tools.ietf.org/html/rfc6775#section-8.1)) | ||
| */ | ||
| #ifndef GNRC_SIXLOWPAN_ND_ROUTER_ABR_NUMOF | ||
| #define GNRC_SIXLOWPAN_ND_ROUTER_ABR_NUMOF (1) | ||
| #endif | ||
|
|
||
| /** | ||
| * @brief The number of non-link-local prefixes associated with border routers | ||
| * at maximum. | ||
| */ | ||
| #ifndef GNRC_SIXLOWPAN_ND_ROUTER_ABR_PRF_NUMOF | ||
| #define GNRC_SIXLOWPAN_ND_ROUTER_ABR_PRF_NUMOF (GNRC_SIXLOWPAN_ND_ROUTER_ABR_NUMOF) | ||
| #endif | ||
|
|
||
| /** | ||
| * @brief Representation for prefixes coming from a router | ||
| */ | ||
| typedef struct gnrc_sixlowpan_nd_router_prf { | ||
| struct gnrc_sixlowpan_nd_router_prf *next; /**< next prefix */ | ||
| gnrc_ipv6_netif_t *iface; /**< interface the prefix is registered too */ | ||
| gnrc_ipv6_netif_addr_t *prefix; /**< prefix on the interface/in the prefix list */ | ||
| } gnrc_sixlowpan_nd_router_prf_t; | ||
|
|
||
| /** | ||
| * @brief Abstract representation of a border router on all (border) routers. | ||
| */ | ||
| typedef struct { | ||
| ipv6_addr_t addr; /**< the IPv6 address of the border router (BR) */ | ||
| uint32_t version; /**< version of the information dissiminated by the | ||
| * BR */ | ||
| uint16_t ltime; /**< the time in minutes until deletion */ | ||
| BITFIELD(ctxs, GNRC_SIXLOWPAN_CTX_SIZE);/**< contexts associated with BR */ | ||
| gnrc_sixlowpan_nd_router_prf_t *prfs; /**< prefixes associated with BR */ | ||
| vtimer_t ltimer; /**< timer for deletion */ | ||
| } gnrc_sixlowpan_nd_router_abr_t; | ||
|
|
||
| /** | ||
| * @brief Removes tentetative neighbor cache entries or sets registered ones to | ||
| * garbage-collectible. | ||
| * | ||
| * @param[in] nc_entry A neighbor cache entry. | ||
| */ | ||
| static inline void gnrc_sixlowpan_nd_router_gc_nc(gnrc_ipv6_nc_t *nc_entry) | ||
| { | ||
| switch (gnrc_ipv6_nc_get_type(nc_entry)) { | ||
| case GNRC_IPV6_NC_TYPE_TENTATIVE: | ||
| case GNRC_IPV6_NC_TYPE_REGISTERED: | ||
| gnrc_ipv6_nc_remove(nc_entry->iface, &nc_entry->ipv6_addr); | ||
| break; | ||
| default: | ||
| break; | ||
| } | ||
|
|
||
| } | ||
|
|
||
| /** | ||
| * @brief Set @p netif to router mode. | ||
| * | ||
| * @details This sets/unsets the GNRC_IPV6_NETIF_FLAGS_ROUTER and initializes or ceases router | ||
| * behavior for 6LoWPAN neighbor discovery. | ||
| * | ||
| * @param[in] netif An IPv6 interface. Must not be NULL. | ||
| * @param[in] enable Status for the GNRC_IPV6_NETIF_FLAGS_ROUTER flag. | ||
| */ | ||
| static inline void gnrc_sixlowpan_nd_router_set_router(gnrc_ipv6_netif_t *netif, bool enable) | ||
| { | ||
| if (enable) { | ||
| netif->flags |= GNRC_IPV6_NETIF_FLAGS_ROUTER; | ||
| } | ||
| else { | ||
| netif->flags &= ~GNRC_IPV6_NETIF_FLAGS_ROUTER; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @brief Set/Unset GNRC_IPV6_NETIF_FLAGS_RTR_ADV flag for @p netif. | ||
| * | ||
| * @details GNRC_IPV6_NETIF_FLAGS_RTR_ADV and initializes or ceases | ||
| * periodic router advertising behavior for neighbor discovery. | ||
| * | ||
| * @param[in] netif An IPv6 interface. Must not be NULL. | ||
| * @param[in] enable Status for the GNRC_IPV6_NETIF_FLAGS_RTR_ADV flag. | ||
| */ | ||
| static inline void gnrc_sixlowpan_nd_router_set_rtr_adv(gnrc_ipv6_netif_t *netif, bool enable) | ||
| { | ||
| if (enable) { | ||
| netif->flags |= GNRC_IPV6_NETIF_FLAGS_RTR_ADV; | ||
| } | ||
| else { | ||
| netif->flags &= ~GNRC_IPV6_NETIF_FLAGS_RTR_ADV; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @brief Get's the border router for this router. | ||
| * | ||
| * @return The border router, if one is specified. | ||
| * @return NULL, otherwise. | ||
| */ | ||
| gnrc_sixlowpan_nd_router_abr_t *gnrc_sixlowpan_nd_router_abr_get(void); | ||
|
|
||
| /** | ||
| * @brief Checks if the version data @p abr_opt is older than the version of the currently | ||
| * registered border router. | ||
| * | ||
| * @param[in] abr_opt An authoritative border router option containing potentially new | ||
| * information on the currently registered border router. | ||
| * | ||
| * @return true, if the information in @p abr_opt is newer. | ||
| * @return false, if the information in @p abr_opt is older. | ||
| */ | ||
| bool gnrc_sixlowpan_nd_router_abr_older(sixlowpan_nd_opt_abr_t *abr_opt); | ||
|
|
||
| /** | ||
| * @brief Removes the border router and all the prefixes and contexts it disseminated through | ||
| * the network for this node. | ||
| * | ||
| * @param[in] abr The border router. | ||
| */ | ||
| void gnrc_sixlowpan_nd_router_abr_remove(gnrc_sixlowpan_nd_router_abr_t *abr); | ||
|
|
||
| #ifdef __cplusplus | ||
| } | ||
| #endif | ||
|
|
||
| #endif /* GNRC_SIXLOWPAN_ND_ROUTER_H_ */ | ||
| /** @} */ | ||
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
These setter functions look much like Java code to me.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Bit-operations are not typical java operations. Moreover, it makes https://github.com/RIOT-OS/RIOT/pull/3749/files#diff-f9bf85cb337616822921e4230ede1572R239 more readable.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
I don't think that anything gets more readable by replacing an assignment by a function and IMO it adds just 18 lines of additional code plus documentation, but this is not a blocker for this PR.