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177 lines
4.6 KiB
177 lines
4.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __NETNS_SCTP_H__ |
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#define __NETNS_SCTP_H__ |
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struct sock; |
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struct proc_dir_entry; |
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struct sctp_mib; |
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struct ctl_table_header; |
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struct netns_sctp { |
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DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics); |
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#ifdef CONFIG_PROC_FS |
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struct proc_dir_entry *proc_net_sctp; |
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#endif |
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#ifdef CONFIG_SYSCTL |
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struct ctl_table_header *sysctl_header; |
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#endif |
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/* This is the global socket data structure used for responding to |
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* the Out-of-the-blue (OOTB) packets. A control sock will be created |
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* for this socket at the initialization time. |
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*/ |
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struct sock *ctl_sock; |
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/* UDP tunneling listening sock. */ |
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struct sock *udp4_sock; |
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struct sock *udp6_sock; |
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/* UDP tunneling listening port. */ |
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int udp_port; |
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/* UDP tunneling remote encap port. */ |
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int encap_port; |
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/* This is the global local address list. |
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* We actively maintain this complete list of addresses on |
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* the system by catching address add/delete events. |
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* |
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* It is a list of sctp_sockaddr_entry. |
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*/ |
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struct list_head local_addr_list; |
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struct list_head addr_waitq; |
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struct timer_list addr_wq_timer; |
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struct list_head auto_asconf_splist; |
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/* Lock that protects both addr_waitq and auto_asconf_splist */ |
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spinlock_t addr_wq_lock; |
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/* Lock that protects the local_addr_list writers */ |
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spinlock_t local_addr_lock; |
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/* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values |
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* |
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* The following protocol parameters are RECOMMENDED: |
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* |
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* RTO.Initial - 3 seconds |
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* RTO.Min - 1 second |
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* RTO.Max - 60 seconds |
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* RTO.Alpha - 1/8 (3 when converted to right shifts.) |
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* RTO.Beta - 1/4 (2 when converted to right shifts.) |
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*/ |
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unsigned int rto_initial; |
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unsigned int rto_min; |
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unsigned int rto_max; |
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/* Note: rto_alpha and rto_beta are really defined as inverse |
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* powers of two to facilitate integer operations. |
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*/ |
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int rto_alpha; |
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int rto_beta; |
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/* Max.Burst - 4 */ |
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int max_burst; |
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/* Whether Cookie Preservative is enabled(1) or not(0) */ |
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int cookie_preserve_enable; |
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/* The namespace default hmac alg */ |
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char *sctp_hmac_alg; |
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/* Valid.Cookie.Life - 60 seconds */ |
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unsigned int valid_cookie_life; |
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/* Delayed SACK timeout 200ms default*/ |
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unsigned int sack_timeout; |
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/* HB.interval - 30 seconds */ |
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unsigned int hb_interval; |
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/* The interval for PLPMTUD probe timer */ |
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unsigned int probe_interval; |
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/* Association.Max.Retrans - 10 attempts |
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* Path.Max.Retrans - 5 attempts (per destination address) |
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* Max.Init.Retransmits - 8 attempts |
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*/ |
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int max_retrans_association; |
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int max_retrans_path; |
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int max_retrans_init; |
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/* Potentially-Failed.Max.Retrans sysctl value |
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* taken from: |
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* http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05 |
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*/ |
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int pf_retrans; |
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/* Primary.Switchover.Max.Retrans sysctl value |
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* taken from: |
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* https://tools.ietf.org/html/rfc7829 |
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*/ |
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int ps_retrans; |
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/* |
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* Disable Potentially-Failed feature, the feature is enabled by default |
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* pf_enable - 0 : disable pf |
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* - >0 : enable pf |
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*/ |
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int pf_enable; |
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/* |
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* Disable Potentially-Failed state exposure, ignored by default |
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* pf_expose - 0 : compatible with old applications (by default) |
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* - 1 : disable pf state exposure |
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* - 2 : enable pf state exposure |
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*/ |
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int pf_expose; |
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/* |
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* Policy for preforming sctp/socket accounting |
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* 0 - do socket level accounting, all assocs share sk_sndbuf |
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* 1 - do sctp accounting, each asoc may use sk_sndbuf bytes |
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*/ |
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int sndbuf_policy; |
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/* |
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* Policy for preforming sctp/socket accounting |
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* 0 - do socket level accounting, all assocs share sk_rcvbuf |
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* 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes |
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*/ |
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int rcvbuf_policy; |
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int default_auto_asconf; |
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/* Flag to indicate if addip is enabled. */ |
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int addip_enable; |
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int addip_noauth; |
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/* Flag to indicate if PR-SCTP is enabled. */ |
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int prsctp_enable; |
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/* Flag to indicate if PR-CONFIG is enabled. */ |
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int reconf_enable; |
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/* Flag to indicate if SCTP-AUTH is enabled */ |
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int auth_enable; |
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/* Flag to indicate if stream interleave is enabled */ |
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int intl_enable; |
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/* Flag to indicate if ecn is enabled */ |
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int ecn_enable; |
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/* |
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* Policy to control SCTP IPv4 address scoping |
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* 0 - Disable IPv4 address scoping |
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* 1 - Enable IPv4 address scoping |
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* 2 - Selectively allow only IPv4 private addresses |
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* 3 - Selectively allow only IPv4 link local address |
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*/ |
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int scope_policy; |
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/* Threshold for rwnd update SACKS. Receive buffer shifted this many |
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* bits is an indicator of when to send and window update SACK. |
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*/ |
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int rwnd_upd_shift; |
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/* Threshold for autoclose timeout, in seconds. */ |
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unsigned long max_autoclose; |
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}; |
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#endif /* __NETNS_SCTP_H__ */
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