B.A.T.M.A.N August 2009

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

16 participants
14 discussions

[B.A.T.M.A.N.] List policy for none subscribers
by Andrew Lunn 09 Oct '09

09 Oct '09

Hi folks Yesterday evening i sent an email to Greg KH about getting batman into mainline via staging. I CCed the list. Since i used an account which is not subscribed, i got a bounce: You are not allowed to post to this mailing list, and your message has been automatically rejected. If you think that your messages are being rejected in error, contact the mailing list owner at b.a.t.m.a.n-owner(a)lists.open-mesh.net. This is contrary to what the wiki says: http://open-mesh.org/wiki/MailingList You can subscribe to our Mailing List here. You can also send an E-Mail without subscription to b.a.t.m.a.n@…, but note that this message will have to be accepted manually (and this can take some time). Greg KH reply also bounced, and he was not so happy about that. If we want to receive comments from the kernel experts, we are probably going to need an open list. I can think of two options: 1) Make the batman list open for none subscribers to post to. 2) Create a batman-adv list which is open and we use that for all discussion about kernel work. As a side issue, i'm not sure batman-adv is the right name for mainline. In the context of the batman project, it makes sense, but from the perspective of mainline, this is the first version of batman, and maybe we cannot justify the advanced. Andrew

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[B.A.T.M.A.N.] [patch] adding subgraph-feature to vis-output in dot-file-format
by Linus Lüssing 30 Sep '09

30 Sep '09

Pfeh... long night again, but here you go. With this patch, batman-adv now supports the subgraphing-feature of the dot-file-format. The vis-output can then be parsed with "fdp -Tsvg -Gcharset=utf8 /proc/net/batman-adv/vis > test.svg" for example. Interfaces belonging to one BATMAN-node can be found inside a box, the primary interface of a BATMAN-node is double-circled. The output also got more detailed, in that connections between nodes are being displayed with the exact mac address of the used interface instead of replacing one end with the primary interface's mac (see [0] for the problems I had posted before). Cheers, Linus PS: Please check if I got that kmalloc stuff right. PPS: I had to introduce a src-field in the vis-packet-struct, therefore the compatibility version had to be increased as well. [0] https://lists.open-mesh.net/pipermail/b.a.t.m.a.n/2009-August/002832.html Index: vis.c =================================================================== --- vis.c (revision 1417) +++ vis.c (working copy) @@ -333,6 +333,7 @@ /* fill one entry into buffer. */ entry = &entry_array[info->packet.entries]; + memcpy(entry->src, orig_node->batman_if->net_dev->dev_addr, ETH_ALEN); memcpy(entry->dest, orig_node->orig, ETH_ALEN); entry->quality = orig_node->router->tq_avg; info->packet.entries++; @@ -351,6 +352,7 @@ while (NULL != (hashit = hash_iterate(hna_local_hash, hashit))) { hna_local_entry = hashit->bucket->data; entry = &entry_array[info->packet.entries]; + memset(entry->src, 0, ETH_ALEN); memcpy(entry->dest, hna_local_entry->addr, ETH_ALEN); entry->quality = 0; /* 0 means HNA */ info->packet.entries++; Index: vis.h =================================================================== --- vis.h (revision 1417) +++ vis.h (working copy) @@ -33,6 +33,7 @@ } __attribute__((packed)); struct vis_info_entry { + uint8_t src[ETH_ALEN]; uint8_t dest[ETH_ALEN]; uint8_t quality; /* quality = 0 means HNA */ } __attribute__((packed)); Index: packet.h =================================================================== --- packet.h (revision 1417) +++ packet.h (working copy) @@ -26,7 +26,7 @@ #define BAT_VIS 0x05 /* this file is included by batctl which needs these defines */ -#define COMPAT_VERSION 7 +#define COMPAT_VERSION 8 #define DIRECTLINK 0x40 #define VIS_SERVER 0x20 Index: proc.c =================================================================== --- proc.c (revision 1417) +++ proc.c (working copy) @@ -403,17 +403,47 @@ return single_open(file, proc_transt_global_read, NULL); } +static void proc_vis_insert_interface(const uint8_t *interface, + struct vis_if_list **if_entry, + bool primary) +{ + // Did we get an empty list? (then insert imediately) + if(*if_entry == NULL) { + *if_entry = kmalloc(sizeof(struct vis_if_list), GFP_KERNEL); + (*if_entry)->primary = primary; + (*if_entry)->next = NULL; + memcpy((*if_entry)->addr, interface, ETH_ALEN); + } else { + // Do we already have this interface in our list? + while(memcmp((*if_entry)->addr, interface, ETH_ALEN)) { + // Or did we reach the end (then append the interface) + if((*if_entry)->next == NULL) { + (*if_entry)->next = kmalloc(sizeof(struct vis_if_list), GFP_KERNEL); + memcpy((*if_entry)->next->addr, interface, ETH_ALEN); + (*if_entry)->next->primary = primary; + (*if_entry)->next->next = NULL; + break; + } + *if_entry = (*if_entry)->next; + } + } +} + static void proc_vis_read_entry(struct seq_file *seq, struct vis_info_entry *entry, - char *from, + struct vis_if_list **if_entry, + uint8_t *vis_orig, uint8_t current_format, uint8_t first_line) { + char from[40]; char to[40]; int int_part, frac_part; addr_to_string(to, entry->dest); if (entry->quality == 0) { + proc_vis_insert_interface(vis_orig, if_entry, true); + addr_to_string(from, vis_orig); if (current_format == DOT_DRAW) { seq_printf(seq, "\t\"%s\" -> \"%s\" [label=\"HNA\"]\n", from, to); @@ -425,6 +455,9 @@ } else { /* kernel has no printf-support for %f? it'd be better to return * this in float. */ + proc_vis_insert_interface(entry->src, if_entry, + (memcmp(entry->src, vis_orig, ETH_ALEN)) ? false : true); + addr_to_string(from, entry->src); int_part = TQ_MAX_VALUE / entry->quality; frac_part = 1000 * TQ_MAX_VALUE / entry->quality - int_part * 1000; if (current_format == DOT_DRAW) { @@ -444,9 +477,11 @@ struct hash_it_t *hashit = NULL; struct vis_info *info; struct vis_info_entry *entries; - char from[40]; + struct vis_if_list *if_entries = NULL; int i; uint8_t current_format, first_line = 1; + char tmp_addr_str[ETH_STR_LEN]; + struct vis_if_list *tmp_if_next; current_format = vis_format; @@ -468,14 +503,32 @@ info = hashit->bucket->data; entries = (struct vis_info_entry *) ((char *)info + sizeof(struct vis_info)); - addr_to_string(from, info->packet.vis_orig); for (i = 0; i < info->packet.entries; i++) { - proc_vis_read_entry(seq, &entries[i], from, + proc_vis_read_entry(seq, &entries[i], &if_entries, + info->packet.vis_orig, current_format, first_line); if (first_line) first_line = 0; } + + // Generate subgraphs from the collected items + if (current_format == DOT_DRAW) { + addr_to_string(tmp_addr_str, info->packet.vis_orig); + seq_printf(seq, "\tsubgraph \"cluster_%s\" \{\n", tmp_addr_str); + while (if_entries != NULL) { + addr_to_string(tmp_addr_str, if_entries->addr); + if (if_entries->primary) + seq_printf(seq, "\t\t\"%s\" [peripheries=2]\n", tmp_addr_str); + else + seq_printf(seq, "\t\t\"%s\"\n", tmp_addr_str); + // ... and empty the list while doing this + tmp_if_next = if_entries->next; + kfree(if_entries); + if_entries = tmp_if_next; + } + seq_printf(seq, "\t}\n"); + } } spin_unlock(&vis_hash_lock); Index: proc.h =================================================================== --- proc.h (revision 1417) +++ proc.h (working copy) @@ -35,3 +35,12 @@ void cleanup_procfs(void); int setup_procfs(void); + +// While scanning for vis-entries of a particular vis-originator +// this list collects its interfaces to create a subgraph/cluster +// out of them later +struct vis_if_list { + uint8_t addr[ETH_ALEN]; + bool primary; + struct vis_if_list *next; +};

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[B.A.T.M.A.N.] HSB announces the second Wireless Battle Mesh (Brussels, 17-18 Oct)
by Benjamin Henrion 04 Sep '09

04 Sep '09

======================================================================= HackerSpaceBrussels announces the second Wireless Battle Mesh WBM2009 v2 (Brussels, 17-18 October) ======================================================================= HackerSpaceBrussels (HSB) announces the second Wireless Battle Mesh, which aims to test 3 popular WiFi routing protocols (OLSR, Batman and Babel), in Brussels on Saturday and Sunday 17-18 October 2009. Agenda ====== * Tue 06 Oct @ 21:00: final IRC meeting to prepare the design of the networks (see below) * Sat 10 Oct @19:30: IPv6 presentation (Filip P.) + panel on possibilities and pittfalls of IPv6 for free networks * Tue 13 Oct - Fri 16 Oct: OpenWRT workshops (we're still up to organising things, some points of interest: openwrt installation and config, kamikaze build environment, ssh keys infrastructure, firmware generation, UCI configuration tool, asterisk/ SIP phone) * Friday 16th Oct @ 18:00 : Deploy the nodes * Sat 17 Oct @ 14:00: Deploy the nodes, setup tests * Sat 17 Oct @ 19:00: concert "I'm sitting under an antenna" v.a., org. by OKNO * Sun 18 Oct @ 14:00: The battle! :-) IRC meetings ============ We setup some IRC meetings to prepare the configuration: IP's, versions, and everything that took too much time at WBM v1. The meetings will be held on the tuesdays of 15 and 22 September and 06 October at 21:00 CET on irc.freenode.net channel #hsbxl. People from brussels and around are invited to join us at the hackerspace. Fee === The event is free. We'll kindly ask you for a donation to cover some costs. Location ======== Okno Quai des Charbonnages 30-34 1080 Brussels http://okno.be http://tinyurl.com/oknomap Transport ========= * Metro: Compte de Flandres / Graaf van Vlaanderen * Train: Go to Brussels central station and take metro from there (metro 5 direction Erasmus) * Route planner in Brussels: http://mivb.be/index.htm Registration ============ Space is limited, so we ask you to register in advance by registering: 1. send an email with your name and surname to contact at voidpointer.be AND 2. register on Doodle: http://www.doodle.com/7yzcn8ptibyq7gxv Requirements ============ * Bring your laptop/computer * Bring your compatible router(s) with OpenWRT pre-installed * Bring your WiFi antenna(s) and connectors Accomodation ============ * Zoobab is offering some free space to sleep (contact him at zoobab at gmail.com) * If you have problems finding accomodation, let us know (contact at voidpointer.be) -- there always be some couches free at HSB. Contact ====== Email: contact at voidpointer.be Tel (ptr_): +32 493 52 50 09 Tel (zoobab): +32 484 56 61 09 Links ===== http://hackerspace.be/wbm2009v2 http://www.olsr.org http://www.pps.jussieu.fr/~jch/software/babel/ http://en.wikipedia.org/wiki/B.A.T.M.A.N. http://hackerspace.be/wbm2009 http://www.tmplab.org/2009/02/16/first-tmplab-wireless-battle-mesh-april-11… http://openwrt.org/ http://www.tmplab.org/wiki/index.php/Wireless_Battle_Mesh

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[B.A.T.M.A.N.] Is svn broken?
by "Sebastián D. Criado" 28 Aug '09

28 Aug '09

I cant's update vía svn svn co http://downloads.open-mesh.net/svn/batman/trunk/batman-experimental/ svn: Could not open the requested SVN filesystem Saludos.- -- Sebastian.Criado(a)gmail.com - GPG: 1024D/FB208AA2 797A 6D01 B7FC B8C7 AD5E|counter.li.org: #146768 2A50 66E6 2FFB FB20 8AA2|http://www.lugro.org.ar http://noalamatricula.wordpress.com/about/ read! "Si el Universo fuera un programa estaría hecho en C, y correría sobre un sistema UNIX" Anónimo.

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Re: [B.A.T.M.A.N.] Getting batman into staging
by Andrew Lunn 26 Aug '09

26 Aug '09

Hi Greg CC: to the batman list should now work for you. Your email address has been listed as O.K. to accept. There is an ongoing discussion about an open list and fighting SPAM etc. > But first off, what is keeping this code from being added to the "main" > portion of the kernel tree? Have you submitted it for inclusion there > already? If so, what was the response? If not, why not? I'm reasonably new to the project so don't know the history too well. I get the impression the code has not been sent to lkml or linux-net list. There seems to be a perception within the developers that getting code into mainline is difficult, so why bother when it has been going O.K. out of mainline. I think you saying it could go into staging right now has taken quite a few people by surprise. Is staging the right way to do this? Is posting to say linux-net better for this sort of code? > Sound good? If so, send me some patches! Assuming we do go via staging, do you want one jumbo patch, 6500 lines of code, or should i break it up into smaller chunks? Thanks Andrew

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[B.A.T.M.A.N.] Reply from Greg KH
by Andrew Lunn 26 Aug '09

26 Aug '09

and here is the reply... Andrew ---------------------------------------------------------------------- On Tue, Aug 25, 2009 at 10:05:30PM +0200, Andrew Lunn wrote: > Hi Greg > > I've decided to take on the challenge of getting batman-advanced into > mainline. This is a challenge since as to date all i've had committed > to mainline are a few USB querks for devices i happen to have. > > B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a > routing protocol for multi-hop ad-hoc mesh networks. It can be used > over wireless and wired links. Batman is used for example in Berlin to > provide their "Freifunknetzes", free wireless network, and in many > other cities. > > The project website can be found at: > > http://www.open-mesh.org/ > > My first question would be is this something that can go into staging? > It is not a device driver or a filesystem which seems to be the major > usage for staging. If it is "self-contained" then we can add it to the staging tree. > The only exception i found to this is the openPOWERLINK protocol > stack. Heh, bad example, that code is getting ripped out for the 2.6.32 release as there has been no support from the developers to get this code into mergable shape :) > Batman layers on top of the wireless and wired network devices, > exporting a virtual network device for accessing the resulting mesh. > The nice thing about batman is that it is completely contained. It > does not need any patches anywhere else, which does fit with the > staging model. Good. But first off, what is keeping this code from being added to the "main" portion of the kernel tree? Have you submitted it for inclusion there already? If so, what was the response? If not, why not? > > The source code is currently in a subversion repository: > > http://downloads.open-mesh.net/svn/batman/trunk/batman-adv-kernelland/ > > I also have a list of things which i think need doing: > > Finish stripping out debug_log. > > Make batctl, the user space configuration tool, standalone. > > Maybe make batctl _The_ tool for configuration and status and > depreciate direct /proc access, so that we can restructure it without > too much pain for users. > > Take out the dot_draw/josm formatting in /proc/net/batman-adv/vis and > put it into userspace as part of batctl. > > Think if /proc/net/batman-adv should be renamed /proc/net/bat0 giving > the option of /proc/net/bat1 etc in the future? > > Should /proc/net/batman-adv/interface be replaced with an IOCTL interface > similar to brctl? > > Maybe move orig_interval, aggregate_ogm and write half of vis to > /sys/class/batman/bat0/? > > Investigate if there is a generic linux hash algorithm which should be used? > > Strip out all backward compatibility support to older kernels. > > Make use of printk %pM support. > > The code is however sparse clean and checkpatch only complains about a > few lines being longer than 80 characters. Most of these are printk > like statements. > > My second question would be when is the right time to get into > staging? Hm, based on the above, right now :) > Should i work on all these issues first? Or can it go into staging > with some of these issues in a TODO file, to be joined by new issues > as the code is reviewed by more experts? Yes, it can go in right now, with that TODO file, and we, and you, can work on it there. Sound good? If so, send me some patches! thanks, greg k-h

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[B.A.T.M.A.N.] Getting batman into staging
by Andrew Lunn 26 Aug '09

26 Aug '09

Hi Folks Here is the email i sent to Greg KH about getting into staging Andrew ---------------------------------------------------------------------- > Hi Greg > > I've decided to take on the challenge of getting batman-advanced into > mainline. This is a challenge since as to date all i've had committed > to mainline are a few USB querks for devices i happen to have. > > B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a > routing protocol for multi-hop ad-hoc mesh networks. It can be used > over wireless and wired links. Batman is used for example in Berlin to > provide their "Freifunknetzes", free wireless network, and in many > other cities. > > The project website can be found at: > > http://www.open-mesh.org/ > > My first question would be is this something that can go into > staging? It is not a device driver or a filesystem which seems to > be the major usage for staging. The only exception i found to this > is the openPOWERLINK protocol stack. Batman layers on top of the > wireless and wired network devices, exporting a virtual network > device for accessing the resulting mesh. The nice thing about > batman is that it is completely contained. It does not need any > patches anywhere else, which does fit with the staging model. > > The source code is currently in a subversion repository: > > http://downloads.open-mesh.net/svn/batman/trunk/batman-adv-kernelland/ > > I also have a list of things which i think need doing: > > Finish stripping out debug_log. > > Make batctl, the user space configuration tool, standalone. > > Maybe make batctl _The_ tool for configuration and status and > depreciate direct /proc access, so that we can restructure it without > too much pain for users. > > Take out the dot_draw/josm formatting in /proc/net/batman-adv/vis and > put it into userspace as part of batctl. > > Think if /proc/net/batman-adv should be renamed /proc/net/bat0 giving > the option of /proc/net/bat1 etc in the future? > > Should /proc/net/batman-adv/interface be replaced with an IOCTL interface > similar to brctl? > > Maybe move orig_interval, aggregate_ogm and write half of vis to > /sys/class/batman/bat0/? > > Investigate if there is a generic linux hash algorithm which should be used? > > Strip out all backward compatibility support to older kernels. > > Make use of printk %pM support. > > The code is however sparse clean and checkpatch only complains about a > few lines being longer than 80 characters. Most of these are printk > like statements. > > My second question would be when is the right time to get into > staging? > > Should i work on all these issues first? Or can it go into staging > with some of these issues in a TODO file, to be joined by new issues > as the code is reviewed by more experts?

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[B.A.T.M.A.N.] [batman-adv] Use prinkt instead of debug_log
by Andrew Lunn 24 Aug '09

24 Aug '09

If batman is to get into mainline, the use of debug_log will need to be removed. This is a first step in this direction. It replaces debug_log calls for CRITICAL, WARNING and NOTICE with printk calls. It tries to consistently prefix all such output with "batman:" making it easier to find such output mixed in with other kernel messages. LOG_TYPE_BATMAN and LOG_TYPE_ROUTES has not been changed. Signed-off-by: Andrew Lunn <andrew(a)lunn.ch> Index: batman-adv-kernelland/vis.c =================================================================== --- batman-adv-kernelland/vis.c (revision 1411) +++ batman-adv-kernelland/vis.c (working copy) @@ -440,8 +440,8 @@ int packet_length; if (info->packet.ttl < 2) { - debug_log(LOG_TYPE_NOTICE, - "Error - can't send vis packet: ttl exceeded\n"); + printk(KERN_DEBUG + "batman: Can't send vis packet: ttl exceeded\n"); return; } @@ -490,13 +490,13 @@ vis_hash = hash_new(256, vis_info_cmp, vis_info_choose); if (!vis_hash) { - debug_log(LOG_TYPE_CRIT, "Can't initialize vis_hash\n"); + printk(KERN_ERR "batman: Can't initialize vis_hash\n"); goto err; } my_vis_info = kmalloc(1000, GFP_KERNEL); if (!my_vis_info) { - debug_log(LOG_TYPE_CRIT, "Can't initialize vis packet\n"); + printk(KERN_ERR "batman: Can't initialize vis packet\n"); goto err; } @@ -517,8 +517,8 @@ memcpy(my_vis_info->packet.sender_orig, mainIfAddr, ETH_ALEN); if (hash_add(vis_hash, my_vis_info) < 0) { - debug_log(LOG_TYPE_CRIT, - "Can't add own vis packet into hash\n"); + printk(KERN_ERR + "batman: Can't add own vis packet into hash\n"); free_info(my_vis_info); /* not in hash, need to remove it * manually. */ goto err; Index: batman-adv-kernelland/translation-table.c =================================================================== --- batman-adv-kernelland/translation-table.c (revision 1411) +++ batman-adv-kernelland/translation-table.c (working copy) @@ -111,7 +111,7 @@ hna_local_hash->size * 2); if (swaphash == NULL) - debug_log(LOG_TYPE_CRIT, "Couldn't resize local hna hash table \n"); + printk(KERN_ERR "batman: Couldn't resize local hna hash table \n"); else hna_local_hash = swaphash; } @@ -331,7 +331,7 @@ hna_global_hash->size * 2); if (swaphash == NULL) - debug_log(LOG_TYPE_CRIT, "Couldn't resize global hna hash table \n"); + printk(KERN_ERR "batman: Couldn't resize global hna hash table \n"); else hna_global_hash = swaphash; } Index: batman-adv-kernelland/send.c =================================================================== --- batman-adv-kernelland/send.c (revision 1411) +++ batman-adv-kernelland/send.c (working copy) @@ -70,8 +70,8 @@ return; if (!(batman_if->net_dev->flags & IFF_UP)) { - debug_log(LOG_TYPE_WARN, - "Interface %s is not up - can't send packet via that interface !\n", batman_if->dev); + printk(KERN_WARNING + "batman: Interface %s is not up - can't send packet via that interface !\n", batman_if->dev); batman_if->if_active = IF_TO_BE_DEACTIVATED; return; } @@ -99,7 +99,7 @@ * (which is > 0). This will not be treated as an error. */ retval = dev_queue_xmit(skb); if (retval < 0) { - debug_log(LOG_TYPE_CRIT, "Can't write to raw socket: %i\n", + printk(KERN_WARNING "batman: Can't write to raw socket: %i\n", retval); batman_if->if_active = IF_TO_BE_DEACTIVATED; } @@ -171,8 +171,8 @@ unsigned char directlink = (batman_packet->flags & DIRECTLINK ? 1 : 0); if (!forw_packet->if_incoming) { - debug_log(LOG_TYPE_CRIT, - "Error - can't forward packet: incoming iface not specified\n"); + printk(KERN_ERR + "batman: Can't forward packet: incoming iface not specified\n"); return; } Index: batman-adv-kernelland/device.c =================================================================== --- batman-adv-kernelland/device.c (revision 1411) +++ batman-adv-kernelland/device.c (working copy) @@ -60,7 +60,7 @@ /* register our device - kernel assigns a free major number */ tmp_major = register_chrdev(0, DRIVER_DEVICE, &fops); if (tmp_major < 0) { - debug_log(LOG_TYPE_WARN, "Registering the character device failed with %d\n", + printk(KERN_ERR "batman: Registering the character device failed with %d\n", tmp_major); return 0; } @@ -68,14 +68,14 @@ #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0) if (devfs_mk_cdev(MKDEV(tmp_major, 0), S_IFCHR | S_IRUGO | S_IWUGO, "batman-adv", 0)) { - debug_log(LOG_TYPE_WARN, "Could not create /dev/batman-adv\n"); + printk(KERN_ERR "batman: Could not create /dev/batman-adv\n"); return 0; } #else batman_class = class_create(THIS_MODULE, "batman-adv"); if (IS_ERR(batman_class)) { - debug_log(LOG_TYPE_WARN, "Could not register class 'batman-adv' \n"); + printk(KERN_ERR "batman: Could not register class 'batman-adv' \n"); return 0; } @@ -109,7 +109,7 @@ #endif if (result < 0) - debug_log(LOG_TYPE_WARN, "Unregistering the character device failed with %d\n", result); + printk(KERN_ERR "batman: Unregistering the character device failed with %d\n", result); Major = 0; } @@ -132,7 +132,7 @@ } if (device_client_hash[i] != device_client) { - debug_log(LOG_TYPE_WARN, "Error - can't add another packet client: maximum number of clients reached \n"); + printk(KERN_INFO "batman: Can't add another packet client: maximum number of clients reached \n"); kfree(device_client); return -EXFULL; } @@ -229,7 +229,7 @@ struct batman_if *batman_if; if (len < sizeof(struct icmp_packet)) { - debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from char device: invalid packet size\n"); + printk(KERN_DEBUG "batman: Can't send packet from char device: invalid packet size\n"); return -EINVAL; } @@ -240,12 +240,12 @@ return -EFAULT; if (icmp_packet.packet_type != BAT_ICMP) { - debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n"); + printk(KERN_DEBUG "batman: Can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n"); return -EINVAL; } if (icmp_packet.msg_type != ECHO_REQUEST) { - debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n"); + printk(KERN_DEBUG "batman: Can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n"); return -EINVAL; } Index: batman-adv-kernelland/proc.c =================================================================== --- batman-adv-kernelland/proc.c (revision 1411) +++ batman-adv-kernelland/proc.c (working copy) @@ -74,8 +74,8 @@ return -ENOMEM; if (count > IFNAMSIZ - 1) { - debug_log(LOG_TYPE_WARN, - "Can't add interface: device name is too long\n"); + printk(KERN_WARNING + "batman: Can't add interface: device name is too long\n"); goto end; } @@ -102,7 +102,7 @@ rcu_read_lock(); list_for_each_entry_rcu(batman_if, &if_list, list) { if (strncmp(batman_if->dev, if_string, count) == 0) { - debug_log(LOG_TYPE_WARN, "Given interface is already active: %s\n", if_string); + printk(KERN_WARNING "batman: Given interface is already active: %s\n", if_string); rcu_read_unlock(); goto end; @@ -158,19 +158,19 @@ retval = strict_strtol(interval_string, 10, &originator_interval_tmp); if (retval) { - debug_log(LOG_TYPE_WARN, "New originator interval invalid\n"); + printk(KERN_WARNING "batman: New originator interval invalid\n"); goto end; } if (originator_interval_tmp <= JITTER * 2) { - debug_log(LOG_TYPE_WARN, - "New originator interval too small: %i (min: %i)\n", + printk(KERN_WARNING + "batman: New originator interval too small: %li (min: %i)\n", originator_interval_tmp, JITTER * 2); goto end; } - debug_log(LOG_TYPE_NOTICE, - "Changing originator interval from: %i to: %i\n", + printk(KERN_INFO + "batman: Changing originator interval from: %i to: %li\n", atomic_read(&originator_interval), originator_interval_tmp); atomic_set(&originator_interval, originator_interval_tmp); @@ -262,14 +262,7 @@ static int proc_log_level_read(struct seq_file *seq, void *offset) { - seq_printf(seq, "[x] %s (%d)\n", LOG_TYPE_CRIT_NAME, LOG_TYPE_CRIT); seq_printf(seq, "[%c] %s (%d)\n", - (LOG_TYPE_WARN & log_level) ? 'x' : ' ', - LOG_TYPE_WARN_NAME, LOG_TYPE_WARN); - seq_printf(seq, "[%c] %s (%d)\n", - (LOG_TYPE_NOTICE & log_level) ? 'x' : ' ', - LOG_TYPE_NOTICE_NAME, LOG_TYPE_NOTICE); - seq_printf(seq, "[%c] %s (%d)\n", (LOG_TYPE_BATMAN & log_level) ? 'x' : ' ', LOG_TYPE_BATMAN_NAME, LOG_TYPE_BATMAN); seq_printf(seq, "[%c] %s (%d)\n", @@ -315,10 +308,6 @@ case '\t': *cp = 0; /* compare */ - if (strcmp(tokptr, LOG_TYPE_WARN_NAME) == 0) - log_level_tmp |= LOG_TYPE_WARN; - if (strcmp(tokptr, LOG_TYPE_NOTICE_NAME) == 0) - log_level_tmp |= LOG_TYPE_NOTICE; if (strcmp(tokptr, LOG_TYPE_BATMAN_NAME) == 0) log_level_tmp |= LOG_TYPE_BATMAN; if (strcmp(tokptr, LOG_TYPE_ROUTES_NAME) == 0) @@ -331,7 +320,7 @@ } } - debug_log(LOG_TYPE_CRIT, "Changing log_level from: %i to: %i\n", + printk(KERN_INFO "batman: Changing log_level from: %i to: %i\n", log_level, log_level_tmp); log_level = log_level_tmp; @@ -503,14 +492,14 @@ vis_mode_string[count - not_copied - 1] = 0; if (strcmp(vis_mode_string, "client") == 0) { - debug_log(LOG_TYPE_NOTICE, "Setting VIS mode to client\n"); + printk(KERN_INFO "batman: Setting VIS mode to client\n"); vis_set_mode(VIS_TYPE_CLIENT_UPDATE); } else if (strcmp(vis_mode_string, "server") == 0) { - debug_log(LOG_TYPE_NOTICE, "Setting VIS mode to server\n"); + printk(KERN_INFO "batman: Setting VIS mode to server\n"); vis_set_mode(VIS_TYPE_SERVER_SYNC); } else - debug_log(LOG_TYPE_WARN, "Unknown VIS mode: %s\n", - vis_mode_string); + printk(KERN_WARNING "batman: Unknown VIS mode: %s\n", + vis_mode_string); kfree(vis_mode_string); return count; @@ -555,15 +544,15 @@ vis_format_string[count - not_copied - 1] = 0; if (strcmp(vis_format_string, VIS_FORMAT_DD_NAME) == 0) { - debug_log(LOG_TYPE_NOTICE, "Setting VIS output format to: %s\n", + printk(KERN_INFO "batman: Setting VIS output format to: %s\n", VIS_FORMAT_DD_NAME); vis_format = DOT_DRAW; } else if (strcmp(vis_format_string, VIS_FORMAT_JSON_NAME) == 0) { - debug_log(LOG_TYPE_NOTICE, "Setting VIS output format to: %s\n", + printk(KERN_INFO "batman: Setting VIS output format to: %s\n", VIS_FORMAT_JSON_NAME); vis_format = JSON; } else - debug_log(LOG_TYPE_WARN, "Unknown VIS output format: %s\n", + printk(KERN_WARNING "batman: Unknown VIS output format: %s\n", vis_format_string); kfree(vis_format_string); @@ -595,11 +584,11 @@ strict_strtol(aggr_string, 10, &aggregation_enabled_tmp); if ((aggregation_enabled_tmp != 0) && (aggregation_enabled_tmp != 1)) { - debug_log(LOG_TYPE_WARN, "Aggregation can only be enabled (1) or disabled (0), given value: %li\n", aggregation_enabled_tmp); + printk(KERN_WARNING "batman: Aggregation can only be enabled (1) or disabled (0), given value: %li\n", aggregation_enabled_tmp); goto end; } - debug_log(LOG_TYPE_NOTICE, "Changing aggregation from: %s (%i) to: %s (%li)\n", + printk(KERN_INFO "batman: Changing aggregation from: %s (%i) to: %s (%li)\n", (atomic_read(&aggregation_enabled) == 1 ? "enabled" : "disabled"), atomic_read(&aggregation_enabled), @@ -754,7 +743,7 @@ #endif if (!proc_batman_dir) { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s' folder failed\n", PROC_ROOT_DIR); + printk(KERN_ERR "batman: Registering the '/proc/net/%s' folder failed\n", PROC_ROOT_DIR); return -EFAULT; } @@ -764,7 +753,7 @@ if (proc_interface_file) { proc_interface_file->proc_fops = &proc_interfaces_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_INTERFACES); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_INTERFACES); cleanup_procfs(); return -EFAULT; } @@ -775,7 +764,7 @@ if (proc_orig_interval_file) { proc_orig_interval_file->proc_fops = &proc_orig_interval_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_ORIG_INTERVAL); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_ORIG_INTERVAL); cleanup_procfs(); return -EFAULT; } @@ -786,7 +775,7 @@ if (proc_log_level_file) { proc_log_level_file->proc_fops = &proc_log_level_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_LOG_LEVEL); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_LOG_LEVEL); cleanup_procfs(); return -EFAULT; } @@ -796,7 +785,7 @@ if (proc_originators_file) { proc_originators_file->proc_fops = &proc_originators_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_ORIGINATORS); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_ORIGINATORS); cleanup_procfs(); return -EFAULT; } @@ -806,7 +795,7 @@ if (proc_log_file) { proc_log_file->proc_fops = &proc_log_operations; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_FILE_LOG, PROC_FILE_GATEWAYS); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_FILE_LOG, PROC_FILE_GATEWAYS); cleanup_procfs(); return -EFAULT; } @@ -816,7 +805,7 @@ if (proc_transt_local_file) { proc_transt_local_file->proc_fops = &proc_transt_local_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_TRANST_LOCAL); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_TRANST_LOCAL); cleanup_procfs(); return -EFAULT; } @@ -826,7 +815,7 @@ if (proc_transt_global_file) { proc_transt_global_file->proc_fops = &proc_transt_global_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_TRANST_GLOBAL); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_TRANST_GLOBAL); cleanup_procfs(); return -EFAULT; } @@ -836,7 +825,7 @@ if (proc_vis_file) { proc_vis_file->proc_fops = &proc_vis_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS); cleanup_procfs(); return -EFAULT; } @@ -847,7 +836,7 @@ if (proc_vis_format_file) { proc_vis_format_file->proc_fops = &proc_vis_format_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS_FORMAT); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_VIS_FORMAT); cleanup_procfs(); return -EFAULT; } @@ -857,7 +846,7 @@ if (proc_aggr_file) { proc_aggr_file->proc_fops = &proc_aggr_fops; } else { - printk(KERN_ERR "batman-adv: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_AGGR); + printk(KERN_ERR "batman: Registering the '/proc/net/%s/%s' file failed\n", PROC_ROOT_DIR, PROC_FILE_AGGR); cleanup_procfs(); return -EFAULT; } Index: batman-adv-kernelland/soft-interface.c =================================================================== --- batman-adv-kernelland/soft-interface.c (revision 1411) +++ batman-adv-kernelland/soft-interface.c (working copy) @@ -212,7 +212,7 @@ * dropping */ if (!spin_trylock(&orig_hash_lock)) { lock_dropped++; - debug_log(LOG_TYPE_NOTICE, "%d packets dropped because lock was hold\n", lock_dropped); + printk(KERN_DEBUG "batman: %d packets dropped because lock was hold\n", lock_dropped); goto dropped; } Index: batman-adv-kernelland/hard-interface.c =================================================================== --- batman-adv-kernelland/hard-interface.c (revision 1411) +++ batman-adv-kernelland/hard-interface.c (working copy) @@ -119,7 +119,7 @@ batman_if->if_active = IF_INACTIVE; active_ifs--; - debug_log(LOG_TYPE_NOTICE, "Interface deactivated: %s\n", + printk(KERN_INFO "batman: Interface deactivated: %s\n", batman_if->dev); } @@ -142,8 +142,8 @@ &batman_if->raw_sock); if (retval < 0) { - debug_log(LOG_TYPE_WARN, "Can't create raw socket: %i\n", - retval); + printk(KERN_ERR "batman: Can't create raw socket: %i\n", + retval); goto error; } @@ -155,8 +155,8 @@ (struct sockaddr *)&bind_addr, sizeof(bind_addr)); if (retval < 0) { - debug_log(LOG_TYPE_WARN, "Can't create bind raw socket: %i\n", - retval); + printk(KERN_ERR "batman: Can't create bind raw socket: %i\n", + retval); goto error; } @@ -225,7 +225,7 @@ data_ptr = kmalloc((if_num + 1) * sizeof(TYPE_OF_WORD) * NUM_WORDS, GFP_ATOMIC); if (!data_ptr) { - debug_log(LOG_TYPE_WARN, "Can't resize orig: out of memory\n"); + printk(KERN_WARNING "batman: Can't resize orig: out of memory\n"); return -1; } @@ -236,7 +236,7 @@ data_ptr = kmalloc((if_num + 1) * sizeof(uint8_t), GFP_ATOMIC); if (!data_ptr) { - debug_log(LOG_TYPE_WARN, "Can't resize orig: out of memory\n"); + printk(KERN_WARNING "batman: Can't resize orig: out of memory\n"); return -1; } @@ -259,7 +259,7 @@ batman_if = kmalloc(sizeof(struct batman_if), GFP_KERNEL); if (!batman_if) { - debug_log(LOG_TYPE_WARN, "Can't add interface (%s): out of memory\n", dev); + printk(KERN_WARNING "batman: Can't add interface (%s): out of memory\n", dev); return -1; } @@ -274,7 +274,7 @@ batman_if->packet_buff = kmalloc(batman_if->packet_len, GFP_KERNEL); if (!batman_if->packet_buff) { - debug_log(LOG_TYPE_WARN, "Can't add interface packet (%s): out of memory\n", dev); + printk(KERN_WARNING "batman: Can't add interface packet (%s): out of memory\n", dev); goto out; } @@ -283,7 +283,7 @@ batman_if->if_active = IF_INACTIVE; INIT_RCU_HEAD(&batman_if->rcu); - debug_log(LOG_TYPE_NOTICE, "Adding interface: %s\n", dev); + printk(KERN_INFO "batman: Adding interface: %s\n", dev); avail_ifs++; INIT_LIST_HEAD(&batman_if->list); @@ -324,7 +324,7 @@ spin_unlock(&orig_hash_lock); if (!hardif_is_interface_up(batman_if->dev)) - debug_log(LOG_TYPE_WARN, "Not using interface %s (retrying later): interface not active\n", batman_if->dev); + printk(KERN_WARNING "batman: Not using interface %s (retrying later): interface not active\n", batman_if->dev); list_add_tail_rcu(&batman_if->list, &if_list); Index: batman-adv-kernelland/log.c =================================================================== --- batman-adv-kernelland/log.c (revision 1411) +++ batman-adv-kernelland/log.c (working copy) @@ -80,17 +80,9 @@ int retval = 0; char tmp_log_buf[256]; - /* only critical information get into the official kernel log */ - if (type == LOG_TYPE_CRIT) { + if (log_level & type) { va_start(args, fmt); vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args); - printk(KERN_ERR "batman-adv: %s", tmp_log_buf); - va_end(args); - } - - if ((type == LOG_TYPE_CRIT) || (log_level & type)) { - va_start(args, fmt); - vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args); fdebug_log("[%10u] %s", (jiffies / HZ), tmp_log_buf); va_end(args); } Index: batman-adv-kernelland/main.c =================================================================== --- batman-adv-kernelland/main.c (revision 1411) +++ batman-adv-kernelland/main.c (working copy) @@ -88,20 +88,20 @@ interface_setup); if (!soft_device) { - debug_log(LOG_TYPE_CRIT, "Unable to allocate the batman interface\n"); + printk(KERN_ERR "batman: Unable to allocate the batman interface\n"); goto end; } retval = register_netdev(soft_device); if (retval < 0) { - debug_log(LOG_TYPE_CRIT, "Unable to register the batman interface: %i\n", retval); + printk(KERN_ERR "batman: Unable to register the batman interface: %i\n", retval); goto free_soft_device; } start_hardif_check_timer(); - debug_log(LOG_TYPE_CRIT, "B.A.T.M.A.N. advanced %s%s (compatibility version %i) loaded \n", + printk(KERN_INFO "B.A.T.M.A.N. advanced %s%s (compatibility version %i) loaded \n", SOURCE_VERSION, REVISION_VERSION_STR, COMPAT_VERSION); return 0; @@ -154,7 +154,7 @@ kthread_task = kthread_run(packet_recv_thread, NULL, "batman-adv"); if (IS_ERR(kthread_task)) { - debug_log(LOG_TYPE_CRIT, "Unable to start packet receive thread\n"); + printk(KERN_ERR "batman: Unable to start packet receive thread\n"); kthread_task = NULL; } } @@ -163,7 +163,7 @@ goto end; err: - debug_log(LOG_TYPE_CRIT, "Unable to allocate memory for mesh information structures: out of mem ?\n"); + printk(KERN_ERR "batman: Unable to allocate memory for mesh information structures: out of mem ?\n"); shutdown_module(); end: return; Index: batman-adv-kernelland/routing.c =================================================================== --- batman-adv-kernelland/routing.c (revision 1411) +++ batman-adv-kernelland/routing.c (working copy) @@ -156,7 +156,7 @@ swaphash = hash_resize(orig_hash, orig_hash->size * 2); if (swaphash == NULL) - debug_log(LOG_TYPE_CRIT, "Couldn't resize orig hash table \n"); + printk(KERN_WARNING "batman: Couldn't resize orig hash table \n"); else orig_hash = swaphash; } @@ -617,7 +617,7 @@ atomic_set(&exit_cond, 0); packet_buff = kmalloc(PACKBUFF_SIZE, GFP_KERNEL); if (!packet_buff) { - debug_log(LOG_TYPE_CRIT, "Could allocate memory for the packet buffer. :(\n"); + printk(KERN_ERR "batman: Couldn't allocate memory for the packet buffer. :(\n"); return -1; } @@ -640,8 +640,8 @@ while (1) { if (batman_if->if_active != IF_ACTIVE) { if (batman_if->if_active != IF_TO_BE_ACTIVATED) - debug_log(LOG_TYPE_NOTICE, - "Could not read from deactivated interface %s!\n", + printk(KERN_DEBUG + "batman: Could not read from deactivated interface %s!\n", batman_if->dev); if (batman_if->raw_sock) @@ -748,7 +748,7 @@ addr_to_string(src_str, icmp_packet->orig); addr_to_string(dst_str, icmp_packet->dst); - debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from %s to %s: ttl exceeded\n", src_str, dst_str); + printk(KERN_DEBUG "batman: Can't send packet from %s to %s: ttl exceeded\n", src_str, dst_str); /* send TTL exceeded if packet is an echo request (traceroute) */ if (icmp_packet->msg_type != ECHO_REQUEST) @@ -829,7 +829,7 @@ addr_to_string(src_str, ((struct ethhdr *)(unicast_packet + 1))->h_source); addr_to_string(dst_str, unicast_packet->dest); - debug_log(LOG_TYPE_NOTICE, "Error - can't send packet from %s to %s: ttl exceeded\n", src_str, dst_str); + printk(KERN_DEBUG "batman: Can't send packet from %s to %s: ttl exceeded\n", src_str, dst_str); continue; } @@ -942,8 +942,9 @@ } - if ((result < 0) && (result != -EAGAIN)) - debug_log(LOG_TYPE_CRIT, "Could not receive packet from interface %s: %i\n", batman_if->dev, result); + if ((result < 0) && (result != -EAGAIN) && + printk_ratelimit()) + printk(KERN_WARNING "batman: Could not receive packet from interface %s: %i\n", batman_if->dev, result); /* lock for the next iteration */ rcu_read_lock(); Index: batman-adv-kernelland/main.h =================================================================== --- batman-adv-kernelland/main.h (revision 1411) +++ batman-adv-kernelland/main.h (working copy) @@ -66,19 +66,9 @@ * Logging */ -#define LOG_TYPE_CRIT 0 /* highest priority for fatal errors such as - * blocked sockets / failed packet delivery / - * programming errors */ -#define LOG_TYPE_WARN 1 /* warnings for small errors like wrong user - * input / damaged packets / etc */ -#define LOG_TYPE_NOTICE 2 /* notice information for new interfaces / - * changed settings / new originators / etc */ #define LOG_TYPE_BATMAN 4 /* all messages related to routing / flooding / * broadcasting / etc */ #define LOG_TYPE_ROUTES 8 /* route or hna added / changed / deleted */ -#define LOG_TYPE_CRIT_NAME "critical" -#define LOG_TYPE_WARN_NAME "warnings" -#define LOG_TYPE_NOTICE_NAME "notices" #define LOG_TYPE_BATMAN_NAME "batman" #define LOG_TYPE_ROUTES_NAME "routes"

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[B.A.T.M.A.N.] tcpdump patch for batman-adv
by Andrew Lunn 19 Aug '09

19 Aug '09

Hi Folks Attached is a patch for tcpdump which adds support for dissecting batman-adv messages. This patch is against: git://github.com/mcr/tcpdump.git It would be great if a few users could test it before i submit the patch upstream. Thanks Andrew

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[B.A.T.M.A.N.] batman-adv applying for an official Ethertype?
by Andrew Lunn 18 Aug '09

18 Aug '09

Hi Folks Has anybody investigated the process for applying for an approved Ethertype as needed by batman advanced? I found a few relevant documents: http://standards.ieee.org/regauth/ http://standards.ieee.org/regauth/ethertype/type-tut.html http://standards.ieee.org/regauth/faqs.html#q15 Not cheap :-( Andrew

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B.A.T.M.A.N August 2009