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linux/net/sctp/Kconfig
Vlad Yasevich 9ad0977fe1 [SCTP]: Use crc32c library for checksum calculations.
The crc32c library used an identical table and algorithm
as SCTP.  Switch to using the library instead of carrying
our own table.  Using crypto layer proved to have too
much overhead compared to using the library directly.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28 14:58:20 -08:00

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#
# SCTP configuration
#
menuconfig IP_SCTP
tristate "The SCTP Protocol (EXPERIMENTAL)"
depends on INET && EXPERIMENTAL
depends on IPV6 || IPV6=n
select CRYPTO
select CRYPTO_HMAC
select CRYPTO_SHA1
select CRYPTO_MD5 if SCTP_HMAC_MD5
select LIBCRC32C
---help---
Stream Control Transmission Protocol
From RFC 2960 <http://www.ietf.org/rfc/rfc2960.txt>.
"SCTP is a reliable transport protocol operating on top of a
connectionless packet network such as IP. It offers the following
services to its users:
-- acknowledged error-free non-duplicated transfer of user data,
-- data fragmentation to conform to discovered path MTU size,
-- sequenced delivery of user messages within multiple streams,
with an option for order-of-arrival delivery of individual user
messages,
-- optional bundling of multiple user messages into a single SCTP
packet, and
-- network-level fault tolerance through supporting of multi-
homing at either or both ends of an association."
To compile this protocol support as a module, choose M here: the
module will be called sctp.
If in doubt, say N.
if IP_SCTP
config SCTP_DBG_MSG
bool "SCTP: Debug messages"
help
If you say Y, this will enable verbose debugging messages.
If unsure, say N. However, if you are running into problems, use
this option to gather detailed trace information
config SCTP_DBG_OBJCNT
bool "SCTP: Debug object counts"
help
If you say Y, this will enable debugging support for counting the
type of objects that are currently allocated. This is useful for
identifying memory leaks. If the /proc filesystem is enabled this
debug information can be viewed by
'cat /proc/net/sctp/sctp_dbg_objcnt'
If unsure, say N
choice
prompt "SCTP: Cookie HMAC Algorithm"
default SCTP_HMAC_MD5
help
HMAC algorithm to be used during association initialization. It
is strongly recommended to use HMAC-SHA1 or HMAC-MD5. See
configuration for Cryptographic API and enable those algorithms
to make usable by SCTP.
config SCTP_HMAC_NONE
bool "None"
help
Choosing this disables the use of an HMAC during association
establishment. It is advised to use either HMAC-MD5 or HMAC-SHA1.
config SCTP_HMAC_SHA1
bool "HMAC-SHA1"
help
Enable the use of HMAC-SHA1 during association establishment. It
is advised to use either HMAC-MD5 or HMAC-SHA1.
config SCTP_HMAC_MD5
bool "HMAC-MD5"
help
Enable the use of HMAC-MD5 during association establishment. It is
advised to use either HMAC-MD5 or HMAC-SHA1.
endchoice
endif # IP_SCTP