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