1#
  2# SCTP configuration
  3#
  4
  5menuconfig IP_SCTP
  6	tristate "The SCTP Protocol (EXPERIMENTAL)"
  7	depends on INET && EXPERIMENTAL
  8	depends on IPV6 || IPV6=n
  9	select CRYPTO
 10	select CRYPTO_HMAC
 11	select CRYPTO_SHA1
 12	select CRYPTO_MD5 if SCTP_HMAC_MD5
 13	select LIBCRC32C
 14	---help---
 15	  Stream Control Transmission Protocol
 16
 17	  From RFC 2960 <http://www.ietf.org/rfc/rfc2960.txt>.
 18
 19	  "SCTP is a reliable transport protocol operating on top of a
 20	  connectionless packet network such as IP.  It offers the following
 21	  services to its users:
 22
 23	  -- acknowledged error-free non-duplicated transfer of user data,
 24	  -- data fragmentation to conform to discovered path MTU size,
 25	  -- sequenced delivery of user messages within multiple streams,
 26	  with an option for order-of-arrival delivery of individual user
 27	  messages,
 28	  -- optional bundling of multiple user messages into a single SCTP
 29	  packet, and
 30	  -- network-level fault tolerance through supporting of multi-
 31	  homing at either or both ends of an association."
 32
 33	  To compile this protocol support as a module, choose M here: the
 34	  module will be called sctp.
 35
 36	  If in doubt, say N.
 37
 38if IP_SCTP
 39
 40config NET_SCTPPROBE
 41	tristate "SCTP: Association probing"
 42        depends on PROC_FS && KPROBES
 43        ---help---
 44        This module allows for capturing the changes to SCTP association
 45        state in response to incoming packets. It is used for debugging
 46        SCTP congestion control algorithms. If you don't understand
 47        what was just said, you don't need it: say N.
 48
 49        To compile this code as a module, choose M here: the
 50        module will be called sctp_probe.
 51
 52config SCTP_DBG_MSG
 53	bool "SCTP: Debug messages"
 54	help
 55	  If you say Y, this will enable verbose debugging messages. 
 56
 57	  If unsure, say N.  However, if you are running into problems, use 
 58	  this option to gather detailed trace information
 59
 60config SCTP_DBG_OBJCNT
 61	bool "SCTP: Debug object counts"
 62	depends on PROC_FS
 63	help
 64	  If you say Y, this will enable debugging support for counting the 
 65	  type of objects that are currently allocated.  This is useful for 
 66	  identifying memory leaks. This debug information can be viewed by
 67	  'cat /proc/net/sctp/sctp_dbg_objcnt'
 68
 69	  If unsure, say N
 70
 71choice
 72	prompt "SCTP: Cookie HMAC Algorithm"
 73	default SCTP_HMAC_MD5
 74	help
 75	  HMAC algorithm to be used during association initialization.  It
 76	  is strongly recommended to use HMAC-SHA1 or HMAC-MD5.  See 
 77	  configuration for Cryptographic API and enable those algorithms
 78          to make usable by SCTP. 
 79
 80config SCTP_HMAC_NONE
 81	bool "None"
 82	help 
 83	  Choosing this disables the use of an HMAC during association 
 84	  establishment.  It is advised to use either HMAC-MD5 or HMAC-SHA1.
 85
 86config SCTP_HMAC_SHA1
 87	bool "HMAC-SHA1"
 88	help 
 89	  Enable the use of HMAC-SHA1 during association establishment.  It 
 90	  is advised to use either HMAC-MD5 or HMAC-SHA1.
 91
 92config SCTP_HMAC_MD5
 93	bool "HMAC-MD5"
 94	help
 95	  Enable the use of HMAC-MD5 during association establishment.  It is 
 96	  advised to use either HMAC-MD5 or HMAC-SHA1.
 97
 98endchoice
 99
100endif # IP_SCTP