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 SCTP_DBG_MSG 41 bool "SCTP: Debug messages" 42 help 43 If you say Y, this will enable verbose debugging messages. 44 45 If unsure, say N. However, if you are running into problems, use 46 this option to gather detailed trace information 47 48config SCTP_DBG_OBJCNT 49 bool "SCTP: Debug object counts" 50 depends on PROC_FS 51 help 52 If you say Y, this will enable debugging support for counting the 53 type of objects that are currently allocated. This is useful for 54 identifying memory leaks. This debug information can be viewed by 55 'cat /proc/net/sctp/sctp_dbg_objcnt' 56 57 If unsure, say N 58 59choice 60 prompt "SCTP: Cookie HMAC Algorithm" 61 default SCTP_HMAC_MD5 62 help 63 HMAC algorithm to be used during association initialization. It 64 is strongly recommended to use HMAC-SHA1 or HMAC-MD5. See 65 configuration for Cryptographic API and enable those algorithms 66 to make usable by SCTP. 67 68config SCTP_HMAC_NONE 69 bool "None" 70 help 71 Choosing this disables the use of an HMAC during association 72 establishment. It is advised to use either HMAC-MD5 or HMAC-SHA1. 73 74config SCTP_HMAC_SHA1 75 bool "HMAC-SHA1" 76 help 77 Enable the use of HMAC-SHA1 during association establishment. It 78 is advised to use either HMAC-MD5 or HMAC-SHA1. 79 80config SCTP_HMAC_MD5 81 bool "HMAC-MD5" 82 help 83 Enable the use of HMAC-MD5 during association establishment. It is 84 advised to use either HMAC-MD5 or HMAC-SHA1. 85 86endchoice 87 88endif # IP_SCTP 89