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authorJames Chapman <jchapman@katalix.com>2010-04-02 10:19:33 +0400
committerDavid S. Miller <davem@davemloft.net>2010-04-04 01:56:07 +0400
commit0ad6614048cf722e4d27909665b4846805357f1b (patch)
tree182349ddf6e2b8e8478a5451cd0ed9684c14f0e8 /net/l2tp/Kconfig
parentd9e31d17ceba5f0736f5a34bbc236239cd42b420 (diff)
downloadlinux-0ad6614048cf722e4d27909665b4846805357f1b.tar.xz
l2tp: Add debugfs files for dumping l2tp debug info
The existing pppol2tp driver exports debug info to /proc/net/pppol2tp. Rather than adding info to that file for the new functionality added in this patch series, we add new files in debugfs, leaving the old /proc file for backwards compatibility (L2TPv2 only). Currently only one file is provided: l2tp/tunnels, which lists internal debug info for all l2tp tunnels and sessions. More files may be added later. The info is for debug and problem analysis only - userspace apps should use netlink to obtain status about l2tp tunnels and sessions. Although debugfs does not support net namespaces, the tunnels and sessions dumped in l2tp/tunnels are only those in the net namespace of the process reading the file. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp/Kconfig')
-rw-r--r--net/l2tp/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/l2tp/Kconfig b/net/l2tp/Kconfig
index a292270c0abe..4b1e71751e10 100644
--- a/net/l2tp/Kconfig
+++ b/net/l2tp/Kconfig
@@ -31,6 +31,19 @@ menuconfig L2TP
If you don't need L2TP, say N. To compile all L2TP code as
modules, choose M here.
+config L2TP_DEBUGFS
+ tristate "L2TP debugfs support"
+ depends on L2TP && DEBUG_FS
+ help
+ Support for l2tp directory in debugfs filesystem. This may be
+ used to dump internal state of the l2tp drivers for problem
+ analysis.
+
+ If unsure, say 'Y'.
+
+ To compile this driver as a module, choose M here. The module
+ will be called l2tp_debugfs.
+
config L2TP_V3
bool "L2TPv3 support (EXPERIMENTAL)"
depends on EXPERIMENTAL && L2TP