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Diffstat (limited to 'include/net/netns/sctp.h')
| -rw-r--r-- | include/net/netns/sctp.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/include/net/netns/sctp.h b/include/net/netns/sctp.h new file mode 100644 index 0000000000..7eff3d981b --- /dev/null +++ b/include/net/netns/sctp.h @@ -0,0 +1,184 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __NETNS_SCTP_H__ +#define __NETNS_SCTP_H__ + +#include <linux/timer.h> +#include <net/snmp.h> + +struct sock; +struct proc_dir_entry; +struct sctp_mib; +struct ctl_table_header; + +struct netns_sctp { + DEFINE_SNMP_STAT(struct sctp_mib, sctp_statistics); + +#ifdef CONFIG_PROC_FS + struct proc_dir_entry *proc_net_sctp; +#endif +#ifdef CONFIG_SYSCTL + struct ctl_table_header *sysctl_header; +#endif + /* This is the global socket data structure used for responding to + * the Out-of-the-blue (OOTB) packets. A control sock will be created + * for this socket at the initialization time. + */ + struct sock *ctl_sock; + + /* UDP tunneling listening sock. */ + struct sock *udp4_sock; + struct sock *udp6_sock; + /* UDP tunneling listening port. */ + int udp_port; + /* UDP tunneling remote encap port. */ + int encap_port; + + /* This is the global local address list. + * We actively maintain this complete list of addresses on + * the system by catching address add/delete events. + * + * It is a list of sctp_sockaddr_entry. + */ + struct list_head local_addr_list; + struct list_head addr_waitq; + struct timer_list addr_wq_timer; + struct list_head auto_asconf_splist; + /* Lock that protects both addr_waitq and auto_asconf_splist */ + spinlock_t addr_wq_lock; + + /* Lock that protects the local_addr_list writers */ + spinlock_t local_addr_lock; + + /* RFC2960 Section 14. Suggested SCTP Protocol Parameter Values + * + * The following protocol parameters are RECOMMENDED: + * + * RTO.Initial - 3 seconds + * RTO.Min - 1 second + * RTO.Max - 60 seconds + * RTO.Alpha - 1/8 (3 when converted to right shifts.) + * RTO.Beta - 1/4 (2 when converted to right shifts.) + */ + unsigned int rto_initial; + unsigned int rto_min; + unsigned int rto_max; + + /* Note: rto_alpha and rto_beta are really defined as inverse + * powers of two to facilitate integer operations. + */ + int rto_alpha; + int rto_beta; + + /* Max.Burst - 4 */ + int max_burst; + + /* Whether Cookie Preservative is enabled(1) or not(0) */ + int cookie_preserve_enable; + + /* The namespace default hmac alg */ + char *sctp_hmac_alg; + + /* Valid.Cookie.Life - 60 seconds */ + unsigned int valid_cookie_life; + + /* Delayed SACK timeout 200ms default*/ + unsigned int sack_timeout; + + /* HB.interval - 30 seconds */ + unsigned int hb_interval; + + /* The interval for PLPMTUD probe timer */ + unsigned int probe_interval; + + /* Association.Max.Retrans - 10 attempts + * Path.Max.Retrans - 5 attempts (per destination address) + * Max.Init.Retransmits - 8 attempts + */ + int max_retrans_association; + int max_retrans_path; + int max_retrans_init; + /* Potentially-Failed.Max.Retrans sysctl value + * taken from: + * http://tools.ietf.org/html/draft-nishida-tsvwg-sctp-failover-05 + */ + int pf_retrans; + + /* Primary.Switchover.Max.Retrans sysctl value + * taken from: + * https://tools.ietf.org/html/rfc7829 + */ + int ps_retrans; + + /* + * Disable Potentially-Failed feature, the feature is enabled by default + * pf_enable - 0 : disable pf + * - >0 : enable pf + */ + int pf_enable; + + /* + * Disable Potentially-Failed state exposure, ignored by default + * pf_expose - 0 : compatible with old applications (by default) + * - 1 : disable pf state exposure + * - 2 : enable pf state exposure + */ + int pf_expose; + + /* + * Policy for preforming sctp/socket accounting + * 0 - do socket level accounting, all assocs share sk_sndbuf + * 1 - do sctp accounting, each asoc may use sk_sndbuf bytes + */ + int sndbuf_policy; + + /* + * Policy for preforming sctp/socket accounting + * 0 - do socket level accounting, all assocs share sk_rcvbuf + * 1 - do sctp accounting, each asoc may use sk_rcvbuf bytes + */ + int rcvbuf_policy; + + int default_auto_asconf; + + /* Flag to indicate if addip is enabled. */ + int addip_enable; + int addip_noauth; + + /* Flag to indicate if PR-SCTP is enabled. */ + int prsctp_enable; + + /* Flag to indicate if PR-CONFIG is enabled. */ + int reconf_enable; + + /* Flag to indicate if SCTP-AUTH is enabled */ + int auth_enable; + + /* Flag to indicate if stream interleave is enabled */ + int intl_enable; + + /* Flag to indicate if ecn is enabled */ + int ecn_enable; + + /* + * Policy to control SCTP IPv4 address scoping + * 0 - Disable IPv4 address scoping + * 1 - Enable IPv4 address scoping + * 2 - Selectively allow only IPv4 private addresses + * 3 - Selectively allow only IPv4 link local address + */ + int scope_policy; + + /* Threshold for rwnd update SACKS. Receive buffer shifted this many + * bits is an indicator of when to send and window update SACK. + */ + int rwnd_upd_shift; + + /* Threshold for autoclose timeout, in seconds. */ + unsigned long max_autoclose; + +#ifdef CONFIG_NET_L3_MASTER_DEV + int l3mdev_accept; +#endif +}; + +#endif /* __NETNS_SCTP_H__ */ |