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authorMatt Domsch <Matt_Domsch@dell.com>2005-11-08 09:40:47 -0800
committerDavid S. Miller <davem@davemloft.net>2005-11-08 09:40:47 -0800
commitb3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c (patch)
tree7ca8e019573362620638e14e32bb519770ee6945 /drivers/net/Kconfig
parent6722e78c90054101e6797d5944cdc81af9897a0a (diff)
[PPP]: add PPP MPPE encryption module
From: Matt Domsch <Matt_Domsch@dell.com> The patch below implements the Microsoft Point-to-Point Encryption method as a PPP compressor/decompressor. This is necessary for Linux clients and servers to interoperate with Microsoft Point-to-Point Tunneling Protocol (PPTP) servers (either Microsoft PPTP servers or the poptop project) which use MPPE to encrypt data when creating a VPN. This patch differs from the kernel_ppp_mppe DKMS pacakge at pptpclient.sourceforge.net by utilizing the kernel crypto routines rather than providing its own SHA1 and arcfour implementations. Minor changes to ppp_generic.c try to prevent a link from disabling compression (in our case, the encryption) after it has started using compression (encryption). Feedback to <pptpclient-devel@lists.sourceforge.net> please. Signed-off-by: Matt Domsch <Matt_Domsch@dell.com> Cc: James Cameron <james.cameron@hp.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Brice Goglin <Brice.Goglin@ens-lyon.org> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/Kconfig')
-rw-r--r--drivers/net/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 1958d9e16a3..24f1691b84f 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2523,6 +2523,19 @@ config PPP_BSDCOMP
module; it is called bsd_comp and will show up in the directory
modules once you have said "make modules". If unsure, say N.
+config PPP_MPPE
+ tristate "PPP MPPE compression (encryption) (EXPERIMENTAL)"
+ depends on PPP && EXPERIMENTAL
+ select CRYPTO
+ select CRYPTO_SHA1
+ select CRYPTO_ARC4
+ ---help---
+ Support for the MPPE Encryption protocol, as employed by the
+ Microsoft Point-to-Point Tunneling Protocol.
+
+ See http://pptpclient.sourceforge.net/ for information on
+ configuring PPTP clients and servers to utilize this method.
+
config PPPOE
tristate "PPP over Ethernet (EXPERIMENTAL)"
depends on EXPERIMENTAL && PPP