1# SPDX-License-Identifier: GPL-2.0-only 2# 3# SCTP configuration 4# 5 6menuconfig IP_SCTP 7 tristate "The SCTP Protocol" 8 depends on INET 9 depends on IPV6 || IPV6=n 10 select CRYPTO 11 select CRYPTO_HMAC 12 select CRYPTO_SHA1 13 select LIBCRC32C 14 select NET_UDP_TUNNEL 15 help 16 Stream Control Transmission Protocol 17 18 From RFC 2960 <http://www.ietf.org/rfc/rfc2960.txt>. 19 20 "SCTP is a reliable transport protocol operating on top of a 21 connectionless packet network such as IP. It offers the following 22 services to its users: 23 24 -- acknowledged error-free non-duplicated transfer of user data, 25 -- data fragmentation to conform to discovered path MTU size, 26 -- sequenced delivery of user messages within multiple streams, 27 with an option for order-of-arrival delivery of individual user 28 messages, 29 -- optional bundling of multiple user messages into a single SCTP 30 packet, and 31 -- network-level fault tolerance through supporting of multi- 32 homing at either or both ends of an association." 33 34 To compile this protocol support as a module, choose M here: the 35 module will be called sctp. Debug messages are handled by the 36 kernel's dynamic debugging framework. 37 38 If in doubt, say N. 39 40if IP_SCTP 41 42config SCTP_DBG_OBJCNT 43 bool "SCTP: Debug object counts" 44 depends on PROC_FS 45 help 46 If you say Y, this will enable debugging support for counting the 47 type of objects that are currently allocated. This is useful for 48 identifying memory leaks. This debug information can be viewed by 49 'cat /proc/net/sctp/sctp_dbg_objcnt' 50 51 If unsure, say N 52choice 53 prompt "Default SCTP cookie HMAC encoding" 54 default SCTP_DEFAULT_COOKIE_HMAC_MD5 55 help 56 This option sets the default sctp cookie hmac algorithm 57 when in doubt select 'md5' 58 59config SCTP_DEFAULT_COOKIE_HMAC_MD5 60 bool "Enable optional MD5 hmac cookie generation" 61 help 62 Enable optional MD5 hmac based SCTP cookie generation 63 select SCTP_COOKIE_HMAC_MD5 64 65config SCTP_DEFAULT_COOKIE_HMAC_SHA1 66 bool "Enable optional SHA1 hmac cookie generation" 67 help 68 Enable optional SHA1 hmac based SCTP cookie generation 69 select SCTP_COOKIE_HMAC_SHA1 70 71config SCTP_DEFAULT_COOKIE_HMAC_NONE 72 bool "Use no hmac alg in SCTP cookie generation" 73 help 74 Use no hmac algorithm in SCTP cookie generation 75 76endchoice 77 78config SCTP_COOKIE_HMAC_MD5 79 bool "Enable optional MD5 hmac cookie generation" 80 help 81 Enable optional MD5 hmac based SCTP cookie generation 82 select CRYPTO_HMAC if SCTP_COOKIE_HMAC_MD5 83 select CRYPTO_MD5 if SCTP_COOKIE_HMAC_MD5 84 85config SCTP_COOKIE_HMAC_SHA1 86 bool "Enable optional SHA1 hmac cookie generation" 87 help 88 Enable optional SHA1 hmac based SCTP cookie generation 89 select CRYPTO_HMAC if SCTP_COOKIE_HMAC_SHA1 90 select CRYPTO_SHA1 if SCTP_COOKIE_HMAC_SHA1 91 92config INET_SCTP_DIAG 93 depends on INET_DIAG 94 def_tristate INET_DIAG 95 96 97endif # IP_SCTP 98