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         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
  40 if IP_SCTP
  41
  42 config 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
  52 choice
  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
  59 config 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
  65 config 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
  71 config 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
  76 endchoice
  77
  78 config 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
  85 config 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
  92 config INET_SCTP_DIAG
  93         depends on INET_DIAG
  94         def_tristate INET_DIAG
  95
  96
  97 endif # IP_SCTP