[B.A.T.M.A.N.] [PATCHv3 1/2] batctl: adding multicast debug level

[B.A.T.M.A.N.] [PATCHv3 1/2] batctl: adding multicast debug level

[Linus Lüssing]

This patch adds the multicast debug level to check for own
multicast flag changes for instance.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
---

Changes in v3:
* none

Changes in v2:
* added a sentence about 'mcast' log level to manpage

 README       |    1 +
 man/batctl.8 |    6 +++---
 sys.c        |    5 +++++
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/README b/README
index b5fd259..c5e3575 100644
--- a/README
+++ b/README
@@ -389,6 +389,7 @@ $  batctl loglevel
 [ ] messages related to bridge loop avoidance (bla)
 [ ] messages related to arp snooping and distributed arp table (dat)
 [ ] messages related to network coding (nc)
+[ ] messages related to multicast (mcast)
 
 batctl nc_nodes
 ===============
diff --git a/man/batctl.8 b/man/batctl.8
index 110020e..66c28bb 100644
--- a/man/batctl.8
+++ b/man/batctl.8
@@ -98,9 +98,9 @@ level. Level 'none' disables all verbose logging. Level 'batman' enables message
 Level 'routes' enables messages related to routes being added / changed / deleted. Level 'tt' enables messages related to
 translation table operations. Level 'bla' enables messages related to the bridge loop avoidance. Level 'dat' enables
 messages related to ARP snooping and the Distributed Arp Table. Level 'nc' enables messages related to network coding.
-Level 'all' enables all messages. The messages are sent to the batman-adv debug log. Use \fBbatctl log\fP to retrieve it.
-Make sure to have debugging output enabled when compiling the module otherwise the output as well as the loglevel options
-won't be available.
+Level 'mcast' enables messages related to multicast optimizations. Level 'all' enables all messages. The messages
+are sent to the batman-adv debug log. Use \fBbatctl log\fP to retrieve it. Make sure to have debugging output enabled
+when compiling the module otherwise the output as well as the loglevel options won't be available.
 .br
 .IP "\fBlog\fP|\fBl\fP [\fB\-n\fP]\fP"
 batctl will read the batman-adv debug log which has to be compiled into the kernel module. If "\-n" is given batctl will not
diff --git a/sys.c b/sys.c
index 676bef1..4fa0e24 100644
--- a/sys.c
+++ b/sys.c
@@ -280,6 +280,7 @@ static void log_level_usage(void)
 	fprintf(stderr, " \t bla     Messages related to bridge loop avoidance\n");
 	fprintf(stderr, " \t dat     Messages related to arp snooping and distributed arp table\n");
 	fprintf(stderr, " \t nc      Messages related to network coding\n");
+	fprintf(stderr, " \t mcast   Messages related to multicast\n");
 }
 
 int handle_loglevel(char *mesh_iface, int argc, char **argv)
@@ -325,6 +326,8 @@ int handle_loglevel(char *mesh_iface, int argc, char **argv)
 				log_level |= BIT(4);
 			else if (strcmp(argv[i], "nc") == 0)
 				log_level |= BIT(5);
+			else if (strcmp(argv[i], "mcast") == 0)
+				log_level |= BIT(6);
 			else {
 				log_level_usage();
 				goto out;
@@ -359,6 +362,8 @@ int handle_loglevel(char *mesh_iface, int argc, char **argv)
 	       "messages related to arp snooping and distributed arp table", "dat");
 	printf("[%c] %s (%s)\n", (log_level & BIT(5)) ? 'x' : ' ',
 	       "messages related to network coding", "nc");
+	printf("[%c] %s (%s)\n", (log_level & BIT(6)) ? 'x' : ' ',
+	       "messages related to multicast", "mcast");
 
 out:
 	free(path_buff);
-- 
1.7.10.4

[B.A.T.M.A.N.] [PATCHv3 2/2] batctl: adding mcast flags debugfs table

[Linus Lüssing]

This patch adds an option to retrieve the per originator multicast
flags table.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
---

Changes in v3:
* updated mcast_flags example in README file

Changes in v2: 
* header_lines for 'mcast_flags' increased from 2 to 6
* Example updated to more verbose, 6 lines debugfs header output
* (kept order for the noted manpage section as it wasn't alphabetically
   orderd in the first place - instead keeping the previous "logical"
   order - 'mcast' after 'nc')

 README       |   34 ++++++++++++++++++++++++++++++++++
 debug.c      |    6 ++++++
 debug.h      |    1 +
 functions.c  |    1 +
 man/batctl.8 |    3 +++
 5 files changed, 45 insertions(+)

diff --git a/README b/README
index c5e3575..ca69866 100644
--- a/README
+++ b/README
@@ -425,6 +425,40 @@ display or modify the multicast mode setting
 
 Usage: batctl multicast_mode|mm [0|1]
 
+batctl mcast_flags
+=================
+
+display the local D.A.T. cache
+
+Usage batctl mcast_flags|mf
+
+Example:
+
+Multicast flags (own flags: [U46])
+* Bridged [U]                           U
+* No IGMP/MLD Querier [4/6]:            ./.
+* Shadowing IGMP/MLD Querier [4/6]:     4/6
+-------------------------------------------
+       Originator Flags
+02:04:64:a4:39:c1 [U..]
+02:04:64:a4:39:c2 [U..]
+02:04:64:a4:39:c3 [...]
+
+where:
+- Originator: the MAC address of the originating (primary interface)
+		batman-adv node
+- Flags: multicast flags of the according node
+- U: wants all unsnoopable multicast traffic, meaning other nodes need to always
+	forward any multicast traffic destined to ff02::1 or 224.0.0.0/24 to it
+- 4: wants all IPv4 multicast traffic, meaning other nodes need to always
+	forward any IPv4 multicast traffic to it
+- 6: wants all IPv6 multicast traffic, meaning other nodes need to always
+	forward any IPv6 multicast traffic to it
+
+If a node does not have multicast optimizations available (e.g. old batman-adv
+version or optimizations not compiled in), therefore not announcing any
+multicast tvlv/flags, a '-' will be displayed instead of '[...]'.
+
 batctl aggregation
 ==================
 
diff --git a/debug.c b/debug.c
index dfcf3c3..6be3506 100644
--- a/debug.c
+++ b/debug.c
@@ -78,6 +78,12 @@ const struct debug_table_data batctl_debug_tables[BATCTL_TABLE_NUM] = {
 		.debugfs_name = "nc_nodes",
 		.header_lines = 0,
 	},
+	{
+		.opt_long = "mcast_flags",
+		.opt_short = "mf",
+		.debugfs_name = "mcast_flags",
+		.header_lines = 6,
+	},
 };
 
 static void debug_table_usage(int debug_table)
diff --git a/debug.h b/debug.h
index 76d5e68..6ea32a4 100644
--- a/debug.h
+++ b/debug.h
@@ -38,6 +38,7 @@ enum batctl_debug_tables {
 	BATCTL_TABLE_BLA_BACKBONES,
 	BATCTL_TABLE_DAT,
 	BATCTL_TABLE_NETWORK_CODING_NODES,
+	BATCTL_TABLE_MCAST_FLAGS,
 	BATCTL_TABLE_NUM,
 };
 
diff --git a/functions.c b/functions.c
index 251e616..7636e85 100644
--- a/functions.c
+++ b/functions.c
@@ -68,6 +68,7 @@ const char *fs_compile_out_param[] = {
 	batctl_debug_tables[BATCTL_TABLE_BLA_BACKBONES].debugfs_name,
 	batctl_debug_tables[BATCTL_TABLE_DAT].debugfs_name,
 	batctl_debug_tables[BATCTL_TABLE_NETWORK_CODING_NODES].debugfs_name,
+	batctl_debug_tables[BATCTL_TABLE_MCAST_FLAGS].debugfs_name,
 	NULL,
 };
 
diff --git a/man/batctl.8 b/man/batctl.8
index 66c28bb..6c5b244 100644
--- a/man/batctl.8
+++ b/man/batctl.8
@@ -227,6 +227,9 @@ List of debug tables:
 .RS 10
 \- nc_nodes|nn (compile time option)
 .RE
+.RS 10
+\- mcast_flags|mf (compile time option)
+.RE
 .RE
 .br
 .IP "\fBtranslate\fP|\fBt\fP \fBMAC_address\fP|\fBbat\-host_name\fP|\fBhost_name\fP|\fBIP_address\fP"
-- 
1.7.10.4

Re: [B.A.T.M.A.N.] [PATCHv3 1/2] batctl: adding multicast debug level

[Sven Eckelmann]

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On Thursday 21 August 2014 21:48:58 Linus Lüssing wrote:
> This patch adds the multicast debug level to check for own
> multicast flag changes for instance.
> 
> Signed-off-by: Linus Lüssing <linus.luessing@web.de>
> ---

It looks like these patches [1,2] actually belong to another patchset [3].
The used features are currently not supported by the kernel.

Can you please resent it with the kernel patches or mark it correctly in
patchwork.

Thanks,
	Sven

[1] https://patchwork.open-mesh.org/patch/4167/
[2] https://patchwork.open-mesh.org/patch/4152/
[3] https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2016-March/014642.html

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