net/sctp/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # SCTP configuration
   4 #
   5
   6 menuconfig 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         ---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. Debug messages are handeled by the
  35           kernel's dynamic debugging framework.
  36
  37           If in doubt, say N.
  38
  39 if IP_SCTP
  40
  41 config SCTP_DBG_OBJCNT
  42         bool "SCTP: Debug object counts"
  43         depends on PROC_FS
  44         help
  45           If you say Y, this will enable debugging support for counting the
  46           type of objects that are currently allocated.  This is useful for
  47           identifying memory leaks. This debug information can be viewed by
  48           'cat /proc/net/sctp/sctp_dbg_objcnt'
  49
  50           If unsure, say N
  51 choice
  52         prompt "Default SCTP cookie HMAC encoding"
  53         default SCTP_DEFAULT_COOKIE_HMAC_MD5
  54         help
  55           This option sets the default sctp cookie hmac algorithm
  56           when in doubt select 'md5'
  57
  58 config SCTP_DEFAULT_COOKIE_HMAC_MD5
  59         bool "Enable optional MD5 hmac cookie generation"
  60         help
  61           Enable optional MD5 hmac based SCTP cookie generation
  62         select SCTP_COOKIE_HMAC_MD5
  63
  64 config SCTP_DEFAULT_COOKIE_HMAC_SHA1
  65         bool "Enable optional SHA1 hmac cookie generation"
  66         help
  67           Enable optional SHA1 hmac based SCTP cookie generation
  68         select SCTP_COOKIE_HMAC_SHA1
  69
  70 config SCTP_DEFAULT_COOKIE_HMAC_NONE
  71         bool "Use no hmac alg in SCTP cookie generation"
  72         help
  73           Use no hmac algorithm in SCTP cookie generation
  74
  75 endchoice
  76
  77 config SCTP_COOKIE_HMAC_MD5
  78         bool "Enable optional MD5 hmac cookie generation"
  79         help
  80           Enable optional MD5 hmac based SCTP cookie generation
  81         select CRYPTO_HMAC if SCTP_COOKIE_HMAC_MD5
  82         select CRYPTO_MD5 if SCTP_COOKIE_HMAC_MD5
  83
  84 config SCTP_COOKIE_HMAC_SHA1
  85         bool "Enable optional SHA1 hmac cookie generation"
  86         help
  87           Enable optional SHA1 hmac based SCTP cookie generation
  88         select CRYPTO_HMAC if SCTP_COOKIE_HMAC_SHA1
  89         select CRYPTO_SHA1 if SCTP_COOKIE_HMAC_SHA1
  90
  91 config INET_SCTP_DIAG
  92         depends on INET_DIAG
  93         def_tristate INET_DIAG
  94
  95
  96 endif # IP_SCTP