B.A.T.M.A.N January 2013

b.a.t.m.a.n@lists.open-mesh.org

25 participants
52 discussions

[B.A.T.M.A.N.] netifd batman-adv proto
by Filippo Sallemi 26 Feb '13

26 Feb '13

Hi all, I've writed a batman-adv proto in according on new netifd system of attitude adjustement release. With this script the batman-adv configuration could be moved on /etc/config/network file istead of /etc/config/batman-adv and the /lib/batman-adv/config.sh is no longer required. es. config interface mesh option proto bat option device bat0 option interfaces 'wlan0 wlan1' option gw_mode server ... if someone think that my work could be useful and can provide a better and elegant integration on openwrt please keep in touch. -- Filippo Sallemi

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[B.A.T.M.A.N.] create batman-adv interfaces with netlink v2
by Marek Lindner 09 Feb '13

09 Feb '13

Hi folks, here the updated patchset conceived by Sven Eckelmann for netlink interface creation. Since the first version the following has happened: * the code has been rebased on top of master * batadv_add_slave() / batadv_del_slave() / batadv_interface_free() were renamed to follow general naming conventions * introduced batadv_softif_destroy_netlink() dedicated to netlink deletion * adding clear name separation between batadv_softif_init_early() / batadv_softif_init_late() Apparently, busybox "ip link" does not support creating interfaces through netlink which is why I was unable to actually test the code in my OpenWrt environments. If any if you know a way of making this work on OpenWrt or are brave enough to run the code natively I'd be interested in getting feedback on whether or not this works. I am certain the code was bug free and ran perfectly fine before I touched it. :) Cheers, Marek

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[B.A.T.M.A.N.] Help and Suggestions Please! :)
by Ashwin Chauhan 04 Feb '13

04 Feb '13

I'm a Computer Science Final Year Undergraduate student. We are a group of Four students and are wanting to do our final group project on B.A.T.M.A.N protocol. Can you help us with the simulating a simple sample network. Also I was thinking, If instead of Broadcasting the OGM Packets every time into the network, we could broadcast them the first time a node joins the network and then just Multicast the OGM packets to its one-hop neighbours from the next time. So that their immediate nodes are still informed about the existence of the node in the network. This way we can reduce the unnecessary flooding of packets. Also when a node moves out of the network its immediate node would know about it much faster and can then broadcast it to other nodes. Trying to do our final year project in this area. Also can someone suggest us some ideas to work upon as our final year Project. :) -- Ashwin

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[B.A.T.M.A.N.] [PATCHv2] batman-adv: Fix alignment of batadv_nc_hash_key_gen
by Martin Hundebøll 31 Jan '13

31 Jan '13

Move second argument to first line and align third argument to the opening parenthesis. Signed-off-by: Martin Hundebøll <martin(a)hundeboll.net> --- v2: Use two lines for arguments instead of three... network-coding.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/network-coding.c b/network-coding.c index 262061b..e6b192c 100644 --- a/network-coding.c +++ b/network-coding.c @@ -371,9 +371,8 @@ static void batadv_nc_purge_paths(struct batadv_priv *bat_priv, * @src: source ethernet mac address going into the hash key * @dst: destination ethernet mac address going into the hash key */ -static void batadv_nc_hash_key_gen(struct batadv_nc_path *key, - const char *src, - const char *dst) +static void batadv_nc_hash_key_gen(struct batadv_nc_path *key, const char *src, + const char *dst) { memcpy(key->prev_hop, src, sizeof(key->prev_hop)); memcpy(key->next_hop, dst, sizeof(key->next_hop)); -- 1.8.1.2

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[B.A.T.M.A.N.] Using BATMAN to create a repeater
by Rip route 30 Jan '13

30 Jan '13

All, I am trying to create a WiFi repeater using hardware that cannot accommodate a normal "bridged repeater" mode. Is it possible to create this type of repeater using BATMAN adv? Thanks Rip

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[B.A.T.M.A.N.] [PATCH] batman-adv: Fix alignment of batadv_nc_hash_key_gen
by Martin Hundebøll 30 Jan '13

30 Jan '13

Make second and third arguments correctly aligned to the opening parenthesis. Signed-off-by: Martin Hundebøll <martin(a)hundeboll.net> --- network-coding.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/network-coding.c b/network-coding.c index 262061b..f97d6cd 100644 --- a/network-coding.c +++ b/network-coding.c @@ -372,8 +372,8 @@ static void batadv_nc_purge_paths(struct batadv_priv *bat_priv, * @dst: destination ethernet mac address going into the hash key */ static void batadv_nc_hash_key_gen(struct batadv_nc_path *key, - const char *src, - const char *dst) + const char *src, + const char *dst) { memcpy(key->prev_hop, src, sizeof(key->prev_hop)); memcpy(key->next_hop, dst, sizeof(key->next_hop)); -- 1.8.1.2

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[B.A.T.M.A.N.] pull request: batman-adv 2013-01-29
by Antonio Quartulli 29 Jan '13

29 Jan '13

Hello David, here you have just a single patch which is fixing a pesky bug that I introduced within a patchset recently sent to net-next/linux-3.9. It is not big, but I think it is worth fixing the new behaviour before it gets released. Please pull or let me know if there is any problem. Thanks a lot, Antonio The following changes since commit cef401de7be8c4e155c6746bfccf721a4fa5fab9: net: fix possible wrong checksum generation (2013-01-28 00:27:15 -0500) are available in the git repository at: git://git.open-mesh.org/linux-merge.git tags/batman-adv-for-davem for you to fetch changes up to a7966d908ae8472e8183496916b7baec5f65b3a6: batman-adv: fix local translation table output (2013-01-28 20:46:03 +0100) ---------------------------------------------------------------- Included changes: - fix recently introduced output behaviour ---------------------------------------------------------------- Antonio Quartulli (1): batman-adv: fix local translation table output net/batman-adv/translation-table.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

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[B.A.T.M.A.N.] [PATCHv4 0/6] CATWOMAN: Network coding in batman-adv
by Martin Hundebøll 29 Jan '13

29 Jan '13

I hereby bring you network coding in batman-adv (in its fourth revision). This allows a relay to send two packets (to two destinations) in a single transmission. Tests[1] have shown an increase in throughput up to 1.6 under the right circumstances. For this to work, you will need to compile batman-adv with CONFIG_BATMAN_ADV_NC=y and a wireless interface with working promiscuous mode. The rest is taken care of by batman-adv and the following patches. Patch 5/6 depends on my previous patch on the mailing list: "Return reason for failure in batadv_check_unicast_packet()" [1] http://www.open-mesh.org/projects/open-mesh/wiki/2011-08-18-network-coding-… Martin Hundebøll (6): batman-adv: Add the initial code for network coding. batman-adv: Detect coding nodes and remove these after timeout batman-adv: Buffer unicast packets before forward. batman-adv: Code and transmit packets if possible. batman-adv: Save overheard and tx packets for decoding. batman-adv: Receive coded packets and decode them. Makefile | 2 + Makefile.kbuild | 1 + bat_iv_ogm.c | 5 + compat.c | 10 + compat.h | 1 + debugfs.c | 18 + gen-compat-autoconf.sh | 1 + main.c | 6 + main.h | 12 +- network-coding.c | 1832 ++++++++++++++++++++++++++++++++++++++++++++++++ network-coding.h | 123 ++++ originator.c | 6 + packet.h | 33 + routing.c | 31 +- send.c | 5 + soft-interface.c | 14 + sysfs-class-net-mesh | 8 + sysfs.c | 6 + types.h | 136 ++++ 19 files changed, 2240 insertions(+), 10 deletions(-) create mode 100644 network-coding.c create mode 100644 network-coding.h -- 1.8.1.1

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[B.A.T.M.A.N.] Dynamic OGM interval
by ajeet singh 29 Jan '13

29 Jan '13

Hello All, Is there any plane to support dynamic OGM interval selection in future? Thanks Ajeet Kumar Singh

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[B.A.T.M.A.N.] [PATCH next] batman-adv: fix local translation output
by Antonio Quartulli 28 Jan '13

28 Jan '13

The last-seen field has to be print for all the entries but the one marked as no-purge. Introduced by 15727323d9f8864b2d41930940acc38de987045a ("batman-adv: don't print the last_seen time for bat0 TT local entry") Signed-off-by: Antonio Quartulli <ordex(a)autistici.org> --- translation-table.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/translation-table.c b/translation-table.c index fb15b4c..d44672f 100644 --- a/translation-table.c +++ b/translation-table.c @@ -517,8 +517,8 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset) BATADV_TT_CLIENT_PENDING ? 'X' : '.'), (tt_common_entry->flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'), - no_purge ? last_seen_secs : 0, - no_purge ? last_seen_msecs : 0); + no_purge ? 0 : last_seen_secs, + no_purge ? 0 : last_seen_msecs); } rcu_read_unlock(); } -- 1.8.1.1

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B.A.T.M.A.N January 2013