B.A.T.M.A.N

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15 participants
4308 discussions

[B.A.T.M.A.N.] help
by Jose Armando 23 Mar '11

23 Mar '11

sorry im new to mesh n i would like to learn more about mesh can any one help me to build mesh software to install ubiquiti nano loco -- Armando Dieguez Phone 714.292.0156

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[B.A.T.M.A.N.] Software editing of /etc/network/interfaces ?
by Kevin Steen 19 Mar '11

19 Mar '11

Anyone know if there are existing script functions to allow a Debian package to edit/add entries to /etc/network/interfaces ? I'm trying to create a package which someone can install to get them on the mesh, rather than a list of instructions on what to edit, etc. The key thing (AFAIK) is making sure everyone is on the same BSSID and channel. Anyone created this package for a batman_adv network already? On a related note, is the on-air format for batman_adv reasonably stable at the moment? If thousands of FreedomBoxen[1] were to start using it, what's the likelihood they would all have to upgrade to a new wire format in the near future? 1. http://wiki.debian.org/FreedomBox Thanks -Kevin

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Re: [B.A.T.M.A.N.] New BMX website at www.bmx6.net
by Sven Eckelmann 15 Mar '11

15 Mar '11

Axel Neumann wrote: > > Does that mean that your svn directories and git repositories at > > open-mesh.org can be dropped > > In the long term yes! But please not right now. I want to update links in > other repositories like openWrt first and give users some time to update > their checkout as well so that the build process does not fail. Lets say > in February. Ok, sounds good. > > (at least it seems that no branch has common > > ancestors with your branches)? > > For branches/bmx-0.3.x/ I used git-svn to create the git repository which > I expected to create common ancestors. Some confusion leaked in when I > moved the directory from trunk/batman-experimental to branches/bmx-0.3.x > (some deleted files like LIESMICH,.. were not deleted which I fixed with > the last git commit). The problem is that you (sry, no offence meant) did a quite bad job to convert it. bmxd.git has these weird git-svn-id lines in the commit messages, "random" commiter names+mails, missing parts of the history, dangling symlinks, ... Please take a look at git://git.open-mesh.org/ecsv/test/bmx.git I don't say that it is the holy grail of svn-to-git conversation, but I think it could be a better conversation than your bmxd.git Best regards, Sven

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[B.A.T.M.A.N.] Wireless Bridge
by A. AlBoori 15 Mar '11

15 Mar '11

Good Day all, I have Wireless DSL router and Open Mesh Router. Is it possible to bridge the Open Mesh Router with Wireless DSL router wirelessly to get the internet? Thank You

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[B.A.T.M.A.N.] Batman-adv gateways vs IPv6
by Jan Lühr 15 Mar '11

15 Mar '11

Hello @all, I'm new to batman - so, sorry if this was discussed already... We're up to deploy batman-adv in an wireless mesh network with multiple routers / gateways providing access to the outside world. Furthermore deploying an IPv4 / v6 dual stack networking is one goals we're trying to archive. We stumbled up on batman-adv and its gateway feature, which looks quite promising. (http://www.open-mesh.org/wiki/batman-adv-gateways) However, since dhcp is used for implementing batman-adv gateways, this feature doesn't affect IPv6 ND / icmp6 - am I right? Having this in mind, what do you think is a suitable deployment strategy for IPv6 in batman-adv networks? Of course, assigning a single /64 to the mesh-cloud is a simple option, but icmp6 flooding might occur ... Thanks, Jan

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[B.A.T.M.A.N.] Various fixes and clean-ups
by Linus Lüssing 14 Mar '11

14 Mar '11

Hi everyone, For one thing, I've changed the orig_node->router dereference as discussed on IRC, now using an extra getter method for that to reduce the lines of code for rcu-dereferencing, rcu-locking and refcounting for the router pointer and to make it easier to keep track of the right refcounting (Patch 4/5). Note, that the previous version was pretty simple, by just using rcu_dereference() everywhere. However, this current version is a little more invasive, so would be great if someone could double check that I didn't introduce any new mem-leaks or null-pointer-dereferences due to wrong refcounting. It already took me quite some time to find and squash two bugs I had introduced with this, so there might be even more in there. I double checked it myself and also tested it in a 4 node chain toplogy vm setup, though. For Patch 5/5, I've removed the "TQ value" from the patch subject. For the TQ window locking is definitely needed, whether tq_avg needs locking as well still needs to be checked. If so, that could be done with a separate patch though. Patches 1,2,3 are just some smaller changes. Let me know what you think about them. Cheers, Linus

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[B.A.T.M.A.N.] Maintainer of vis and batmand
by elektra 10 Mar '11

10 Mar '11

Hi Sven - AFAIK *vis* has no maintainer at the moment. I am currently working on the routing loop issue in batmand and link-local OGM aggregation, in order to improve scalability. Will do some testing at the Battlemesh. Cheers, Elektra

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[B.A.T.M.A.N.] [Patch] vis: Modified format of JSON output.
by elektra 10 Mar '11

10 Mar '11

The current vis server JSON output format is breaking the json_decode() function for PHP. This patch mainly: - Removes all spaces - Removes all the \t TABS - Double quotes the string-variables Reported-by: "Alberto Escudero-Pascual" <aep(a)it46.se> Signed-off-by: "elektra" <onelektra(a)gmx.net> --- vis.c 2011-03-09 17:19:59.000000000 +0100 +++ new/vis.c 2011-03-09 17:15:26.000000000 +0100 @@ -88,19 +88,21 @@ if ( fork() ) exit(EXIT_SUCCESS); - chdir( "/" ); + if (chdir( "/" )==0) { - if ( ( fd = open(_PATH_DEVNULL, O_RDWR, 0) ) != -1 ) { + if ( ( fd = open(_PATH_DEVNULL, O_RDWR, 0) ) != -1 ) { - dup2(fd, STDIN_FILENO); - dup2(fd, STDOUT_FILENO); - dup2(fd, STDERR_FILENO); + dup2(fd, STDIN_FILENO); + dup2(fd, STDOUT_FILENO); + dup2(fd, STDERR_FILENO); - if ( fd > 2 ) - close(fd); + if ( fd > 2 ) + close(fd); + } + } else { + exit_error( "Error - can't chdir\n"); } - return 0; } @@ -395,7 +397,7 @@ fillme->dot_buffer = (char *)debugRealloc( fillme->dot_buffer, strlen( tmp ) + strlen( fillme->dot_buffer ) + 1, 408 ); strncat( fillme->dot_buffer, tmp, strlen( tmp ) ); - snprintf( tmp, sizeof( tmp ), "%s\t{ router : \"%s\", neighbour : \"%s\", label : %.2f }", + snprintf( tmp, sizeof( tmp ), "%s{\"router\":\"%s\",\"neighbour\":\"%s\",\"label\":%.2f}", (first_line ? "" : ", \n"), from_str, to_str, (float)( orig_node->tq_max / (float)neigh->tq_avg ) ); first_line = 0; fillme->json_buffer = (char *)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( fillme->json_buffer ) + 1, 408 ); @@ -416,7 +418,7 @@ fillme->dot_buffer = (char *)debugRealloc( fillme->dot_buffer, strlen( tmp ) + strlen( fillme->dot_buffer ) + 1, 409 ); strncat( fillme->dot_buffer, tmp, strlen( tmp ) ); - snprintf( tmp, sizeof( tmp ), "%s\t{ router : \"%s\", gateway : \"%s/%s\", label : \"HNA\" }", + snprintf( tmp, sizeof( tmp ), "%s{\"router\":\"%s\",\"gateway\":\"%s/%s\",\"label\":\"HNA\"}", (first_line ? "" : ",\n"), from_str, to_str, hna_str ); first_line = 0; fillme->json_buffer = (char *)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( fillme->json_buffer ) + 1, 409 ); @@ -432,7 +434,7 @@ strncat( fillme->dot_buffer, tmp, strlen( tmp ) );

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[B.A.T.M.A.N.] [Patch] vis: Modified format of JSON output.
by elektra 09 Mar '11

09 Mar '11

The current vis server JSON output format is breaking the json_decode() function for PHP. This patch mainly: - Removes all spaces - Removes all the \t TABS - Double quotes the string-variables Reported-by: "Alberto Escudero-Pascual" <aep(a)it46.se> Signed-off-by: "elektra" <onelektra(a)gmx.net> --- vis.c 2011-03-09 17:19:59.000000000 +0100 +++ new/vis.c 2011-03-09 17:15:26.000000000 +0100 @@ -88,19 +88,21 @@ if ( fork() ) exit(EXIT_SUCCESS); - chdir( "/" ); + if (chdir( "/" )==0) { - if ( ( fd = open(_PATH_DEVNULL, O_RDWR, 0) ) != -1 ) { + if ( ( fd = open(_PATH_DEVNULL, O_RDWR, 0) ) != -1 ) { - dup2(fd, STDIN_FILENO); - dup2(fd, STDOUT_FILENO); - dup2(fd, STDERR_FILENO); + dup2(fd, STDIN_FILENO); + dup2(fd, STDOUT_FILENO); + dup2(fd, STDERR_FILENO); - if ( fd > 2 ) - close(fd); + if ( fd > 2 ) + close(fd); + } + } else { + exit_error( "Error - can't chdir\n"); } - return 0; } @@ -395,7 +397,7 @@ fillme->dot_buffer = (char *)debugRealloc( fillme->dot_buffer, strlen( tmp ) + strlen( fillme->dot_buffer ) + 1, 408 ); strncat( fillme->dot_buffer, tmp, strlen( tmp ) ); - snprintf( tmp, sizeof( tmp ), "%s\t{ router : \"%s\", neighbour : \"%s\", label : %.2f }", + snprintf( tmp, sizeof( tmp ), "%s{\"router\":\"%s\",\"neighbour\":\"%s\",\"label\":%.2f}", (first_line ? "" : ",\n"), from_str, to_str, (float)( orig_node->tq_max / (float)neigh->tq_avg ) ); first_line = 0; fillme->json_buffer = (char *)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( fillme->json_buffer ) + 1, 408 ); @@ -416,7 +418,7 @@ fillme->dot_buffer = (char *)debugRealloc( fillme->dot_buffer, strlen( tmp ) + strlen( fillme->dot_buffer ) + 1, 409 ); strncat( fillme->dot_buffer, tmp, strlen( tmp ) ); - snprintf( tmp, sizeof( tmp ), "%s\t{ router : \"%s\", gateway : \"%s/%s\", label : \"HNA\" }", + snprintf( tmp, sizeof( tmp ), "%s{\"router\":\"%s\",\"gateway\":\"%s/%s\",\"label\":\"HNA\"}", (first_line ? "" : ",\n"), from_str, to_str, hna_str ); first_line = 0; fillme->json_buffer = (char *)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( fillme->json_buffer ) + 1, 409 ); @@ -432,7 +434,7 @@ strncat( fillme->dot_buffer, tmp, strlen( tmp ) ); snprintf( tmp, sizeof( tmp ), - "%s\t{ router : \"%s\", gateway : \"%s\", label : \"%s\" }", + "%s{\"router\":\"%s\",\"gateway\":\"%s\",\"label\":\"%s\"}", (first_line ? "" : ",\n"), from_str, "0.0.0.0/0.0.0.0", "HNA" ); first_line = 0; fillme->json_buffer = (char *)debugRealloc( fillme->json_buffer, strlen( tmp ) + strlen( fillme->json_buffer ) + 1, 410 );

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[B.A.T.M.A.N.] pull request: batman-adv 2011-03-05
by Sven Eckelmann 07 Mar '11

07 Mar '11

Hi, I was asked to submit following pull request for net-next-2.6/linux-2.6.39. It contains Marek's hard work (and of course related work by other people) to remove the orig_hash (aka the batman-adv private "big kernel lock"). There are also smaller cleanups by Marek, Jesper Juhl and Linus Luessing which remove some unused variables, includes and irritating naming schemes. thanks, Sven The following changes since commit 3878f1f075470990d9c2418b53f31694e774f743: batman-adv: Disallow originator addressing within mesh layer (2011-02-11 23:30:33 +0100) are available in the git repository at: git://git.open-mesh.org/ecsv/linux-merge.git batman-adv/next Jesper Juhl (1): batman-adv: Remove two duplicate includes. Linus Lüssing (4): batman-adv: Make bat_priv->curr_gw an rcu protected pointer batman-adv: Increase orig_node refcount before releasing rcu read lock batman-adv: Fix possible buffer overflow in softif neigh list output batman-adv: Remove unused hdr_size variable in route_unicast_packet() Marek Lindner (21): batman-adv: protect neighbor nodes with reference counters batman-adv: convert neighbor list to hlist batman-adv: protect neighbor list with rcu locks batman-adv: free neighbors when an interface is deactivated batman-adv: protect neigh_nodes used outside of rcu_locks with refcounting batman-adv: protect each hash row with rcu locks batman-adv: protect originator nodes with reference counters batman-adv: protect ogm counter arrays with spinlock batman-adv: Correct rcu refcounting for neigh_node batman-adv: Correct rcu refcounting for gw_node batman-adv: Correct rcu refcounting for softif_neigh batman-adv: Correct rcu refcounting for batman_if batman-adv: protect bit operations to count OGMs with spinlock batman-adv: make broadcast seqno operations atomic batman-adv: separate ethernet comparing calls from hash functions batman-adv: remove extra layer between hash and hash element - hash bucket batman-adv: Correct rcu refcounting for orig_node batman-adv: increase refcount in create_neighbor to be consistent batman-adv: remove orig_hash spinlock batman-adv: rename global if_list to hardif_list batman-adv: rename batman_if struct to hard_iface Simon Wunderlich (1): batman-adv: protect bonding with rcu locks Sven Eckelmann (1): batman-adv: Disallow regular interface as mesh device net/batman-adv/aggregation.c | 8 +- net/batman-adv/aggregation.h | 4 +- net/batman-adv/bat_sysfs.c | 51 +- net/batman-adv/gateway_client.c | 140 ++++-- net/batman-adv/hard-interface.c | 407 ++++++++-------- net/batman-adv/hard-interface.h | 15 +- net/batman-adv/hash.c | 26 +- net/batman-adv/hash.h | 112 ++--- net/batman-adv/icmp_socket.c | 40 +- net/batman-adv/main.c | 13 +- net/batman-adv/main.h | 12 +- net/batman-adv/originator.c | 252 ++++++---- net/batman-adv/originator.h | 50 ++- net/batman-adv/routing.c | 983 +++++++++++++++++++++--------------- net/batman-adv/routing.h | 25 +- net/batman-adv/send.c | 103 ++-- net/batman-adv/send.h | 8 +- net/batman-adv/soft-interface.c | 74 ++-- net/batman-adv/soft-interface.h | 3 +- net/batman-adv/translation-table.c | 205 +++++--- net/batman-adv/types.h | 48 +- net/batman-adv/unicast.c | 93 ++-- net/batman-adv/unicast.h | 2 +- net/batman-adv/vis.c | 192 ++++--- 24 files changed, 1634 insertions(+), 1232 deletions(-)

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