1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NETNS_SCTP_H__ 2 #ifndef __NETNS_SCTP_H__
3 #define __NETNS_SCTP_H__ 3 #define __NETNS_SCTP_H__
4 4
5 #include <linux/timer.h> <<
6 #include <net/snmp.h> <<
7 <<
8 struct sock; 5 struct sock;
9 struct proc_dir_entry; 6 struct proc_dir_entry;
10 struct sctp_mib; 7 struct sctp_mib;
11 struct ctl_table_header; 8 struct ctl_table_header;
12 9
13 struct netns_sctp { 10 struct netns_sctp {
14 DEFINE_SNMP_STAT(struct sctp_mib, sctp 11 DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics);
15 12
16 #ifdef CONFIG_PROC_FS 13 #ifdef CONFIG_PROC_FS
17 struct proc_dir_entry *proc_net_sctp; 14 struct proc_dir_entry *proc_net_sctp;
18 #endif 15 #endif
19 #ifdef CONFIG_SYSCTL 16 #ifdef CONFIG_SYSCTL
20 struct ctl_table_header *sysctl_header 17 struct ctl_table_header *sysctl_header;
21 #endif 18 #endif
22 /* This is the global socket data stru 19 /* This is the global socket data structure used for responding to
23 * the Out-of-the-blue (OOTB) packets. 20 * the Out-of-the-blue (OOTB) packets. A control sock will be created
24 * for this socket at the initializati 21 * for this socket at the initialization time.
25 */ 22 */
26 struct sock *ctl_sock; 23 struct sock *ctl_sock;
27 24
28 /* UDP tunneling listening sock. */ <<
29 struct sock *udp4_sock; <<
30 struct sock *udp6_sock; <<
31 /* UDP tunneling listening port. */ <<
32 int udp_port; <<
33 /* UDP tunneling remote encap port. */ <<
34 int encap_port; <<
35 <<
36 /* This is the global local address li 25 /* This is the global local address list.
37 * We actively maintain this complete 26 * We actively maintain this complete list of addresses on
38 * the system by catching address add/ 27 * the system by catching address add/delete events.
39 * 28 *
40 * It is a list of sctp_sockaddr_entry 29 * It is a list of sctp_sockaddr_entry.
41 */ 30 */
42 struct list_head local_addr_list; 31 struct list_head local_addr_list;
43 struct list_head addr_waitq; 32 struct list_head addr_waitq;
44 struct timer_list addr_wq_timer; 33 struct timer_list addr_wq_timer;
45 struct list_head auto_asconf_splist; 34 struct list_head auto_asconf_splist;
46 /* Lock that protects both addr_waitq 35 /* Lock that protects both addr_waitq and auto_asconf_splist */
47 spinlock_t addr_wq_lock; 36 spinlock_t addr_wq_lock;
48 37
49 /* Lock that protects the local_addr_l 38 /* Lock that protects the local_addr_list writers */
50 spinlock_t local_addr_lock; 39 spinlock_t local_addr_lock;
51 40
52 /* RFC2960 Section 14. Suggested SCTP 41 /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values
53 * 42 *
54 * The following protocol parameters a 43 * The following protocol parameters are RECOMMENDED:
55 * 44 *
56 * RTO.Initial - 3 secon 45 * RTO.Initial - 3 seconds
57 * RTO.Min - 1 secon 46 * RTO.Min - 1 second
58 * RTO.Max - 60 secon 47 * RTO.Max - 60 seconds
59 * RTO.Alpha - 1/8 (3 48 * RTO.Alpha - 1/8 (3 when converted to right shifts.)
60 * RTO.Beta - 1/4 (2 49 * RTO.Beta - 1/4 (2 when converted to right shifts.)
61 */ 50 */
62 unsigned int rto_initial; 51 unsigned int rto_initial;
63 unsigned int rto_min; 52 unsigned int rto_min;
64 unsigned int rto_max; 53 unsigned int rto_max;
65 54
66 /* Note: rto_alpha and rto_beta are re 55 /* Note: rto_alpha and rto_beta are really defined as inverse
67 * powers of two to facilitate integer 56 * powers of two to facilitate integer operations.
68 */ 57 */
69 int rto_alpha; 58 int rto_alpha;
70 int rto_beta; 59 int rto_beta;
71 60
72 /* Max.Burst - 4 */ 61 /* Max.Burst - 4 */
73 int max_burst; 62 int max_burst;
74 63
75 /* Whether Cookie Preservative is enab 64 /* Whether Cookie Preservative is enabled(1) or not(0) */
76 int cookie_preserve_enable; 65 int cookie_preserve_enable;
77 66
78 /* The namespace default hmac alg */ 67 /* The namespace default hmac alg */
79 char *sctp_hmac_alg; 68 char *sctp_hmac_alg;
80 69
81 /* Valid.Cookie.Life - 60 seco 70 /* Valid.Cookie.Life - 60 seconds */
82 unsigned int valid_cookie_life; 71 unsigned int valid_cookie_life;
83 72
84 /* Delayed SACK timeout 200ms default 73 /* Delayed SACK timeout 200ms default*/
85 unsigned int sack_timeout; 74 unsigned int sack_timeout;
86 75
87 /* HB.interval - 30 secon 76 /* HB.interval - 30 seconds */
88 unsigned int hb_interval; 77 unsigned int hb_interval;
89 78
90 /* The interval for PLPMTUD probe time <<
91 unsigned int probe_interval; <<
92 <<
93 /* Association.Max.Retrans - 10 attem 79 /* Association.Max.Retrans - 10 attempts
94 * Path.Max.Retrans - 5 attem 80 * Path.Max.Retrans - 5 attempts (per destination address)
95 * Max.Init.Retransmits - 8 attem 81 * Max.Init.Retransmits - 8 attempts
96 */ 82 */
97 int max_retrans_association; 83 int max_retrans_association;
98 int max_retrans_path; 84 int max_retrans_path;
99 int max_retrans_init; 85 int max_retrans_init;
100 /* Potentially-Failed.Max.Retrans sysc 86 /* Potentially-Failed.Max.Retrans sysctl value
101 * taken from: 87 * taken from:
102 * http://tools.ietf.org/html/draft-ni 88 * http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05
103 */ 89 */
104 int pf_retrans; 90 int pf_retrans;
105 91
106 /* Primary.Switchover.Max.Retrans sysc 92 /* Primary.Switchover.Max.Retrans sysctl value
107 * taken from: 93 * taken from:
108 * https://tools.ietf.org/html/rfc7829 94 * https://tools.ietf.org/html/rfc7829
109 */ 95 */
110 int ps_retrans; 96 int ps_retrans;
111 97
112 /* 98 /*
113 * Disable Potentially-Failed feature, 99 * Disable Potentially-Failed feature, the feature is enabled by default
114 * pf_enable - 0 : disable pf 100 * pf_enable - 0 : disable pf
115 * - >0 : enable pf 101 * - >0 : enable pf
116 */ 102 */
117 int pf_enable; 103 int pf_enable;
118 104
119 /* 105 /*
120 * Disable Potentially-Failed state ex 106 * Disable Potentially-Failed state exposure, ignored by default
121 * pf_expose - 0 : compatible wit 107 * pf_expose - 0 : compatible with old applications (by default)
122 * - 1 : disable pf sta 108 * - 1 : disable pf state exposure
123 * - 2 : enable pf sta 109 * - 2 : enable pf state exposure
124 */ 110 */
125 int pf_expose; 111 int pf_expose;
126 112
127 /* 113 /*
128 * Policy for preforming sctp/socket a 114 * Policy for preforming sctp/socket accounting
129 * 0 - do socket level accounting, a 115 * 0 - do socket level accounting, all assocs share sk_sndbuf
130 * 1 - do sctp accounting, each asoc 116 * 1 - do sctp accounting, each asoc may use sk_sndbuf bytes
131 */ 117 */
132 int sndbuf_policy; 118 int sndbuf_policy;
133 119
134 /* 120 /*
135 * Policy for preforming sctp/socket a 121 * Policy for preforming sctp/socket accounting
136 * 0 - do socket level accounting, a 122 * 0 - do socket level accounting, all assocs share sk_rcvbuf
137 * 1 - do sctp accounting, each asoc 123 * 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes
138 */ 124 */
139 int rcvbuf_policy; 125 int rcvbuf_policy;
140 126
141 int default_auto_asconf; 127 int default_auto_asconf;
142 128
143 /* Flag to indicate if addip is enable 129 /* Flag to indicate if addip is enabled. */
144 int addip_enable; 130 int addip_enable;
145 int addip_noauth; 131 int addip_noauth;
146 132
147 /* Flag to indicate if PR-SCTP is enab 133 /* Flag to indicate if PR-SCTP is enabled. */
148 int prsctp_enable; 134 int prsctp_enable;
149 135
150 /* Flag to indicate if PR-CONFIG is en 136 /* Flag to indicate if PR-CONFIG is enabled. */
151 int reconf_enable; 137 int reconf_enable;
152 138
153 /* Flag to indicate if SCTP-AUTH is en 139 /* Flag to indicate if SCTP-AUTH is enabled */
154 int auth_enable; 140 int auth_enable;
155 141
156 /* Flag to indicate if stream interlea 142 /* Flag to indicate if stream interleave is enabled */
157 int intl_enable; 143 int intl_enable;
158 144
159 /* Flag to indicate if ecn is enabled 145 /* Flag to indicate if ecn is enabled */
160 int ecn_enable; 146 int ecn_enable;
161 147
162 /* 148 /*
163 * Policy to control SCTP IPv4 address 149 * Policy to control SCTP IPv4 address scoping
164 * 0 - Disable IPv4 address scoping 150 * 0 - Disable IPv4 address scoping
165 * 1 - Enable IPv4 address scoping 151 * 1 - Enable IPv4 address scoping
166 * 2 - Selectively allow only IPv4 p 152 * 2 - Selectively allow only IPv4 private addresses
167 * 3 - Selectively allow only IPv4 l 153 * 3 - Selectively allow only IPv4 link local address
168 */ 154 */
169 int scope_policy; 155 int scope_policy;
170 156
171 /* Threshold for rwnd update SACKS. R 157 /* Threshold for rwnd update SACKS. Receive buffer shifted this many
172 * bits is an indicator of when to sen 158 * bits is an indicator of when to send and window update SACK.
173 */ 159 */
174 int rwnd_upd_shift; 160 int rwnd_upd_shift;
175 161
176 /* Threshold for autoclose timeout, in 162 /* Threshold for autoclose timeout, in seconds. */
177 unsigned long max_autoclose; 163 unsigned long max_autoclose;
178 <<
179 #ifdef CONFIG_NET_L3_MASTER_DEV <<
180 int l3mdev_accept; <<
181 #endif <<
182 }; 164 };
183 165
184 #endif /* __NETNS_SCTP_H__ */ 166 #endif /* __NETNS_SCTP_H__ */
185 167
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