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gerrit-public.fairphone.software / kernel / msm-4.9 / d9c19f90f3a50eb4ff8d17616492338c0b2f9434 / . / include / net / netns / sctp.h
blob: c501d67172b125d55108ca407f4c50a158da0e14 [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;
Marcelo Ricardo Leitner2d45a022015-06-12 10:16:41 -0300[diff] [blame]34 /* Lock that protects both addr_waitq and auto_asconf_splist */
Eric W. Biederman4db67e82012-08-06 08:42:04 +0000[diff] [blame]35 spinlock_t addr_wq_lock;
36
37 /* Lock that protects the local_addr_list writers */
38 spinlock_t local_addr_lock;
Eric W. Biedermanebb7e952012-08-07 07:23:59 +0000[diff] [blame]39
Eric W. Biedermane1fc3b12012-08-07 07:29:57 +0000[diff] [blame]40 /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values
41 *
42 * The following protocol parameters are RECOMMENDED:
43 *
44 * RTO.Initial - 3 seconds
45 * RTO.Min - 1 second
46 * RTO.Max - 60 seconds
47 * RTO.Alpha - 1/8 (3 when converted to right shifts.)
48 * RTO.Beta - 1/4 (2 when converted to right shifts.)
49 */
50 unsigned int rto_initial;
51 unsigned int rto_min;
52 unsigned int rto_max;
53
54 /* Note: rto_alpha and rto_beta are really defined as inverse
55 * powers of two to facilitate integer operations.
56 */
57 int rto_alpha;
58 int rto_beta;
59
60 /* Max.Burst - 4 */
61 int max_burst;
62
63 /* Whether Cookie Preservative is enabled(1) or not(0) */
64 int cookie_preserve_enable;
65
Neil Horman3c681982012-10-24 09:20:03 +0000[diff] [blame]66 /* The namespace default hmac alg */
67 char *sctp_hmac_alg;
68
Eric W. Biedermane1fc3b12012-08-07 07:29:57 +0000[diff] [blame]69 /* Valid.Cookie.Life - 60 seconds */
70 unsigned int valid_cookie_life;
71
72 /* Delayed SACK timeout 200ms default*/
73 unsigned int sack_timeout;
74
75 /* HB.interval - 30 seconds */
76 unsigned int hb_interval;
77
78 /* Association.Max.Retrans - 10 attempts
79 * Path.Max.Retrans - 5 attempts (per destination address)
80 * Max.Init.Retransmits - 8 attempts
81 */
82 int max_retrans_association;
83 int max_retrans_path;
84 int max_retrans_init;
85 /* Potentially-Failed.Max.Retrans sysctl value
86 * taken from:
87 * http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05
88 */
89 int pf_retrans;
90
91 /*
Zhu Yanjun566178f2015-12-16 13:55:04 +0800[diff] [blame]92 * Disable Potentially-Failed feature, the feature is enabled by default
93 * pf_enable - 0 : disable pf
94 * - >0 : enable pf
95 */
96 int pf_enable;
97
98 /*
Eric W. Biedermane1fc3b12012-08-07 07:29:57 +0000[diff] [blame]99 * Policy for preforming sctp/socket accounting
100 * 0 - do socket level accounting, all assocs share sk_sndbuf
101 * 1 - do sctp accounting, each asoc may use sk_sndbuf bytes
102 */
103 int sndbuf_policy;
104
105 /*
106 * Policy for preforming sctp/socket accounting
107 * 0 - do socket level accounting, all assocs share sk_rcvbuf
108 * 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes
109 */
110 int rcvbuf_policy;
111
112 int default_auto_asconf;
113
114 /* Flag to indicate if addip is enabled. */
115 int addip_enable;
116 int addip_noauth;
117
118 /* Flag to indicate if PR-SCTP is enabled. */
119 int prsctp_enable;
120
121 /* Flag to idicate if SCTP-AUTH is enabled */
122 int auth_enable;
123
124 /*
125 * Policy to control SCTP IPv4 address scoping
126 * 0 - Disable IPv4 address scoping
127 * 1 - Enable IPv4 address scoping
128 * 2 - Selectively allow only IPv4 private addresses
129 * 3 - Selectively allow only IPv4 link local address
130 */
131 int scope_policy;
132
133 /* Threshold for rwnd update SACKS. Receive buffer shifted this many
134 * bits is an indicator of when to send and window update SACK.
135 */
136 int rwnd_upd_shift;
137
138 /* Threshold for autoclose timeout, in seconds. */
139 unsigned long max_autoclose;
Eric W. Biederman4db67e82012-08-06 08:42:04 +0000[diff] [blame]140};
141
142#endif /* __NETNS_SCTP_H__ */