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