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 101