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1#ifndef __NETNS_SCTP_H__
2#define __NETNS_SCTP_H__
3
4struct sock;
5struct proc_dir_entry;
6struct sctp_mib;
7struct ctl_table_header;
8
9struct netns_sctp {
10 DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics);
11
12#ifdef CONFIG_PROC_FS
13 struct proc_dir_entry *proc_net_sctp;
14#endif
15#ifdef CONFIG_SYSCTL
16 struct ctl_table_header *sysctl_header;
17#endif
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
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;
38
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
65 /* The namespace default hmac alg */
66 char *sctp_hmac_alg;
67
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;
132};
133
134#endif /* __NETNS_SCTP_H__ */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __NETNS_SCTP_H__
3#define __NETNS_SCTP_H__
4
5struct sock;
6struct proc_dir_entry;
7struct sctp_mib;
8struct ctl_table_header;
9
10struct netns_sctp {
11 DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics);
12
13#ifdef CONFIG_PROC_FS
14 struct proc_dir_entry *proc_net_sctp;
15#endif
16#ifdef CONFIG_SYSCTL
17 struct ctl_table_header *sysctl_header;
18#endif
19 /* This is the global socket data structure used for responding to
20 * the Out-of-the-blue (OOTB) packets. A control sock will be created
21 * for this socket at the initialization time.
22 */
23 struct sock *ctl_sock;
24
25 /* UDP tunneling listening sock. */
26 struct sock *udp4_sock;
27 struct sock *udp6_sock;
28 /* UDP tunneling listening port. */
29 int udp_port;
30 /* UDP tunneling remote encap port. */
31 int encap_port;
32
33 /* This is the global local address list.
34 * We actively maintain this complete list of addresses on
35 * the system by catching address add/delete events.
36 *
37 * It is a list of sctp_sockaddr_entry.
38 */
39 struct list_head local_addr_list;
40 struct list_head addr_waitq;
41 struct timer_list addr_wq_timer;
42 struct list_head auto_asconf_splist;
43 /* Lock that protects both addr_waitq and auto_asconf_splist */
44 spinlock_t addr_wq_lock;
45
46 /* Lock that protects the local_addr_list writers */
47 spinlock_t local_addr_lock;
48
49 /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values
50 *
51 * The following protocol parameters are RECOMMENDED:
52 *
53 * RTO.Initial - 3 seconds
54 * RTO.Min - 1 second
55 * RTO.Max - 60 seconds
56 * RTO.Alpha - 1/8 (3 when converted to right shifts.)
57 * RTO.Beta - 1/4 (2 when converted to right shifts.)
58 */
59 unsigned int rto_initial;
60 unsigned int rto_min;
61 unsigned int rto_max;
62
63 /* Note: rto_alpha and rto_beta are really defined as inverse
64 * powers of two to facilitate integer operations.
65 */
66 int rto_alpha;
67 int rto_beta;
68
69 /* Max.Burst - 4 */
70 int max_burst;
71
72 /* Whether Cookie Preservative is enabled(1) or not(0) */
73 int cookie_preserve_enable;
74
75 /* The namespace default hmac alg */
76 char *sctp_hmac_alg;
77
78 /* Valid.Cookie.Life - 60 seconds */
79 unsigned int valid_cookie_life;
80
81 /* Delayed SACK timeout 200ms default*/
82 unsigned int sack_timeout;
83
84 /* HB.interval - 30 seconds */
85 unsigned int hb_interval;
86
87 /* The interval for PLPMTUD probe timer */
88 unsigned int probe_interval;
89
90 /* Association.Max.Retrans - 10 attempts
91 * Path.Max.Retrans - 5 attempts (per destination address)
92 * Max.Init.Retransmits - 8 attempts
93 */
94 int max_retrans_association;
95 int max_retrans_path;
96 int max_retrans_init;
97 /* Potentially-Failed.Max.Retrans sysctl value
98 * taken from:
99 * http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05
100 */
101 int pf_retrans;
102
103 /* Primary.Switchover.Max.Retrans sysctl value
104 * taken from:
105 * https://tools.ietf.org/html/rfc7829
106 */
107 int ps_retrans;
108
109 /*
110 * Disable Potentially-Failed feature, the feature is enabled by default
111 * pf_enable - 0 : disable pf
112 * - >0 : enable pf
113 */
114 int pf_enable;
115
116 /*
117 * Disable Potentially-Failed state exposure, ignored by default
118 * pf_expose - 0 : compatible with old applications (by default)
119 * - 1 : disable pf state exposure
120 * - 2 : enable pf state exposure
121 */
122 int pf_expose;
123
124 /*
125 * Policy for preforming sctp/socket accounting
126 * 0 - do socket level accounting, all assocs share sk_sndbuf
127 * 1 - do sctp accounting, each asoc may use sk_sndbuf bytes
128 */
129 int sndbuf_policy;
130
131 /*
132 * Policy for preforming sctp/socket accounting
133 * 0 - do socket level accounting, all assocs share sk_rcvbuf
134 * 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes
135 */
136 int rcvbuf_policy;
137
138 int default_auto_asconf;
139
140 /* Flag to indicate if addip is enabled. */
141 int addip_enable;
142 int addip_noauth;
143
144 /* Flag to indicate if PR-SCTP is enabled. */
145 int prsctp_enable;
146
147 /* Flag to indicate if PR-CONFIG is enabled. */
148 int reconf_enable;
149
150 /* Flag to indicate if SCTP-AUTH is enabled */
151 int auth_enable;
152
153 /* Flag to indicate if stream interleave is enabled */
154 int intl_enable;
155
156 /* Flag to indicate if ecn is enabled */
157 int ecn_enable;
158
159 /*
160 * Policy to control SCTP IPv4 address scoping
161 * 0 - Disable IPv4 address scoping
162 * 1 - Enable IPv4 address scoping
163 * 2 - Selectively allow only IPv4 private addresses
164 * 3 - Selectively allow only IPv4 link local address
165 */
166 int scope_policy;
167
168 /* Threshold for rwnd update SACKS. Receive buffer shifted this many
169 * bits is an indicator of when to send and window update SACK.
170 */
171 int rwnd_upd_shift;
172
173 /* Threshold for autoclose timeout, in seconds. */
174 unsigned long max_autoclose;
175};
176
177#endif /* __NETNS_SCTP_H__ */