LXR linux/net/sctp/Kconfig

   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