181 lines
4.6 KiB
C
181 lines
4.6 KiB
C
/* 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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#include <linux/timer.h>
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#include <net/snmp.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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