# SPDX-License-Identifier: GPL-2.0-only
#
# SCTP configuration
#

menuconfig IP_SCTP
	tristate "The SCTP Protocol"
	depends on INET
	select CRYPTO_LIB_SHA1
	select CRYPTO_LIB_SHA256
	select CRYPTO_LIB_UTILS
	select NET_CRC32C
	select NET_UDP_TUNNEL
	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. Debug messages are handled by the
	  kernel's dynamic debugging framework.

	  If in doubt, say N.

if IP_SCTP

config SCTP_DBG_OBJCNT
	bool "SCTP: Debug object counts"
	depends on PROC_FS
	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. This debug information can be viewed by
	  'cat /proc/net/sctp/sctp_dbg_objcnt'

	  If unsure, say N

choice
	prompt "Default SCTP cookie authentication method"
	default SCTP_DEFAULT_COOKIE_HMAC_SHA256
	help
	  This option sets the default SCTP cookie authentication method, for
	  when a method hasn't been explicitly selected via the
	  net.sctp.cookie_hmac_alg sysctl.

	  If unsure, choose the default (HMAC-SHA256).

config SCTP_DEFAULT_COOKIE_HMAC_SHA256
	bool "HMAC-SHA256"

config SCTP_DEFAULT_COOKIE_HMAC_NONE
	bool "None"

endchoice

config INET_SCTP_DIAG
	depends on INET_DIAG
	def_tristate INET_DIAG


endif # IP_SCTP