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gerrit-public.fairphone.software / kernel / msm-4.9 / 0b88e7042a221a0318d726017b0f97aa42066826 / . / include / net / netns / sctp.h
blob: 3573a81815ad9e0efb6ceb721eb066d3726419f0 [file] [log] [blame]
Eric W. Biederman4db67e82012-08-06 08:42:04 +0000[diff] [blame]1#ifndef __NETNS_SCTP_H__
2#define __NETNS_SCTP_H__
3
Eric W. Biederman2ce95502012-08-06 08:43:06 +0000[diff] [blame]4struct sock;
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000[diff] [blame]5struct proc_dir_entry;
Eric W. Biedermanb01a2402012-08-06 08:47:55 +0000[diff] [blame]6struct sctp_mib;
Eric W. Biedermanebb7e952012-08-07 07:23:59 +0000[diff] [blame]7struct ctl_table_header;
Eric W. Biederman2ce95502012-08-06 08:43:06 +0000[diff] [blame]8
Eric W. Biederman4db67e82012-08-06 08:42:04 +0000[diff] [blame]9struct netns_sctp {
Eric W. Biedermanb01a2402012-08-06 08:47:55 +0000[diff] [blame]10 DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics);
11
Eric W. Biederman13d782f2012-08-06 08:45:15 +0000[diff] [blame]12#ifdef CONFIG_PROC_FS
13 struct proc_dir_entry *proc_net_sctp;
14#endif
Eric W. Biedermanebb7e952012-08-07 07:23:59 +0000[diff] [blame]15#ifdef CONFIG_SYSCTL
16 struct ctl_table_header *sysctl_header;
17#endif
Eric W. Biederman2ce95502012-08-06 08:43:06 +0000[diff] [blame]18 /* This is the global socket data structure used for responding to
19 * the Out-of-the-blue (OOTB) packets. A control sock will be created
20 * for this socket at the initialization time.
21 */
22 struct sock *ctl_sock;
23
Eric W. Biederman4db67e82012-08-06 08:42:04 +0000[diff] [blame]24 /* This is the global local address list.
25 * We actively maintain this complete list of addresses on
26 * the system by catching address add/delete events.
27 *
28 * It is a list of sctp_sockaddr_entry.
29 */
30 struct list_head local_addr_list;
31 struct list_head addr_waitq;
32 struct timer_list addr_wq_timer;
33 struct list_head auto_asconf_splist;
34 spinlock_t addr_wq_lock;
35
36 /* Lock that protects the local_addr_list writers */
37 spinlock_t local_addr_lock;
Eric W. Biedermanebb7e952012-08-07 07:23:59 +0000[diff] [blame]38
Eric W. Biedermane1fc3b12012-08-07 07:29:57 +0000[diff] [blame]39 /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values
40 *
41 * The following protocol parameters are RECOMMENDED:
42 *
43 * RTO.Initial - 3 seconds
44 * RTO.Min - 1 second
45 * RTO.Max - 60 seconds
46 * RTO.Alpha - 1/8 (3 when converted to right shifts.)
47 * RTO.Beta - 1/4 (2 when converted to right shifts.)
48 */
49 unsigned int rto_initial;
50 unsigned int rto_min;
51 unsigned int rto_max;
52
53 /* Note: rto_alpha and rto_beta are really defined as inverse
54 * powers of two to facilitate integer operations.
55 */
56 int rto_alpha;
57 int rto_beta;
58
59 /* Max.Burst - 4 */
60 int max_burst;
61
62 /* Whether Cookie Preservative is enabled(1) or not(0) */
63 int cookie_preserve_enable;
64
Neil Horman3c681982012-10-24 09:20:03 +0000[diff] [blame]65 /* The namespace default hmac alg */
66 char *sctp_hmac_alg;
67
Eric W. Biedermane1fc3b12012-08-07 07:29:57 +0000[diff] [blame]68 /* Valid.Cookie.Life - 60 seconds */
69 unsigned int valid_cookie_life;
70
71 /* Delayed SACK timeout 200ms default*/
72 unsigned int sack_timeout;
73
74 /* HB.interval - 30 seconds */
75 unsigned int hb_interval;
76
77 /* Association.Max.Retrans - 10 attempts
78 * Path.Max.Retrans - 5 attempts (per destination address)
79 * Max.Init.Retransmits - 8 attempts
80 */
81 int max_retrans_association;
82 int max_retrans_path;
83 int max_retrans_init;
84 /* Potentially-Failed.Max.Retrans sysctl value
85 * taken from:
86 * http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05
87 */
88 int pf_retrans;
89
90 /*
91 * Policy for preforming sctp/socket accounting
92 * 0 - do socket level accounting, all assocs share sk_sndbuf
93 * 1 - do sctp accounting, each asoc may use sk_sndbuf bytes
94 */
95 int sndbuf_policy;
96
97 /*
98 * Policy for preforming sctp/socket accounting
99 * 0 - do socket level accounting, all assocs share sk_rcvbuf
100 * 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes
101 */
102 int rcvbuf_policy;
103
104 int default_auto_asconf;
105
106 /* Flag to indicate if addip is enabled. */
107 int addip_enable;
108 int addip_noauth;
109
110 /* Flag to indicate if PR-SCTP is enabled. */
111 int prsctp_enable;
112
113 /* Flag to idicate if SCTP-AUTH is enabled */
114 int auth_enable;
115
116 /*
117 * Policy to control SCTP IPv4 address scoping
118 * 0 - Disable IPv4 address scoping
119 * 1 - Enable IPv4 address scoping
120 * 2 - Selectively allow only IPv4 private addresses
121 * 3 - Selectively allow only IPv4 link local address
122 */
123 int scope_policy;
124
125 /* Threshold for rwnd update SACKS. Receive buffer shifted this many
126 * bits is an indicator of when to send and window update SACK.
127 */
128 int rwnd_upd_shift;
129
130 /* Threshold for autoclose timeout, in seconds. */
131 unsigned long max_autoclose;
Eric W. Biederman4db67e82012-08-06 08:42:04 +0000[diff] [blame]132};
133
134#endif /* __NETNS_SCTP_H__ */