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Diffstat (limited to 'netwerk/sctp/src/netinet/sctp_pcb.h')
| -rw-r--r-- | netwerk/sctp/src/netinet/sctp_pcb.h | 881 |
1 files changed, 881 insertions, 0 deletions
diff --git a/netwerk/sctp/src/netinet/sctp_pcb.h b/netwerk/sctp/src/netinet/sctp_pcb.h new file mode 100644 index 0000000000..71c21886fe --- /dev/null +++ b/netwerk/sctp/src/netinet/sctp_pcb.h @@ -0,0 +1,881 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. + * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * a) Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * b) Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * + * c) Neither the name of Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#if defined(__FreeBSD__) && !defined(__Userspace__) +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); +#endif + +#ifndef _NETINET_SCTP_PCB_H_ +#define _NETINET_SCTP_PCB_H_ + +#include <netinet/sctp_os.h> +#include <netinet/sctp.h> +#include <netinet/sctp_constants.h> +#include <netinet/sctp_sysctl.h> + +LIST_HEAD(sctppcbhead, sctp_inpcb); +LIST_HEAD(sctpasochead, sctp_tcb); +LIST_HEAD(sctpladdr, sctp_laddr); +LIST_HEAD(sctpvtaghead, sctp_tagblock); +LIST_HEAD(sctp_vrflist, sctp_vrf); +LIST_HEAD(sctp_ifnlist, sctp_ifn); +LIST_HEAD(sctp_ifalist, sctp_ifa); +TAILQ_HEAD(sctp_readhead, sctp_queued_to_read); +TAILQ_HEAD(sctp_streamhead, sctp_stream_queue_pending); + +#include <netinet/sctp_structs.h> +#include <netinet/sctp_auth.h> + +#define SCTP_PCBHASH_ALLADDR(port, mask) (port & mask) +#define SCTP_PCBHASH_ASOC(tag, mask) (tag & mask) + +struct sctp_vrf { + LIST_ENTRY (sctp_vrf) next_vrf; + struct sctp_ifalist *vrf_addr_hash; + struct sctp_ifnlist ifnlist; + uint32_t vrf_id; + uint32_t tbl_id_v4; /* default v4 table id */ + uint32_t tbl_id_v6; /* default v6 table id */ + uint32_t total_ifa_count; + u_long vrf_addr_hashmark; + uint32_t refcount; +}; + +struct sctp_ifn { + struct sctp_ifalist ifalist; + struct sctp_vrf *vrf; + LIST_ENTRY(sctp_ifn) next_ifn; + LIST_ENTRY(sctp_ifn) next_bucket; + void *ifn_p; /* never access without appropriate lock */ + uint32_t ifn_mtu; + uint32_t ifn_type; + uint32_t ifn_index; /* shorthand way to look at ifn for reference */ + uint32_t refcount; /* number of reference held should be >= ifa_count */ + uint32_t ifa_count; /* IFA's we hold (in our list - ifalist)*/ + uint32_t num_v6; /* number of v6 addresses */ + uint32_t num_v4; /* number of v4 addresses */ + uint32_t registered_af; /* registered address family for i/f events */ + char ifn_name[SCTP_IFNAMSIZ]; +}; + +/* SCTP local IFA flags */ +#define SCTP_ADDR_VALID 0x00000001 /* its up and active */ +#define SCTP_BEING_DELETED 0x00000002 /* being deleted, + * when refcount = 0. Note + * that it is pulled from the ifn list + * and ifa_p is nulled right away but + * it cannot be freed until the last *net + * pointing to it is deleted. + */ +#define SCTP_ADDR_DEFER_USE 0x00000004 /* Hold off using this one */ +#define SCTP_ADDR_IFA_UNUSEABLE 0x00000008 + +struct sctp_ifa { + LIST_ENTRY(sctp_ifa) next_ifa; + LIST_ENTRY(sctp_ifa) next_bucket; + struct sctp_ifn *ifn_p; /* back pointer to parent ifn */ + void *ifa; /* pointer to ifa, needed for flag + * update for that we MUST lock + * appropriate locks. This is for V6. + */ + union sctp_sockstore address; + uint32_t refcount; /* number of folks referring to this */ + uint32_t flags; + uint32_t localifa_flags; + uint32_t vrf_id; /* vrf_id of this addr (for deleting) */ + uint8_t src_is_loop; + uint8_t src_is_priv; + uint8_t src_is_glob; + uint8_t resv; +}; + +struct sctp_laddr { + LIST_ENTRY(sctp_laddr) sctp_nxt_addr; /* next in list */ + struct sctp_ifa *ifa; + uint32_t action; /* Used during asconf and adding + * if no-zero src-addr selection will + * not consider this address. + */ + struct timeval start_time; /* time when this address was created */ +}; + +struct sctp_block_entry { + int error; +}; + +struct sctp_timewait { + uint32_t tv_sec_at_expire; /* the seconds from boot to expire */ + uint32_t v_tag; /* the vtag that can not be reused */ + uint16_t lport; /* the local port used in vtag */ + uint16_t rport; /* the remote port used in vtag */ +}; + +struct sctp_tagblock { + LIST_ENTRY(sctp_tagblock) sctp_nxt_tagblock; + struct sctp_timewait vtag_block[SCTP_NUMBER_IN_VTAG_BLOCK]; +}; + +struct sctp_epinfo { +#if defined(__FreeBSD__) && !defined(__Userspace__) +#ifdef INET + struct socket *udp4_tun_socket; +#endif +#ifdef INET6 + struct socket *udp6_tun_socket; +#endif +#endif + struct sctpasochead *sctp_asochash; + u_long hashasocmark; + + struct sctppcbhead *sctp_ephash; + u_long hashmark; + + /*- + * The TCP model represents a substantial overhead in that we get an + * additional hash table to keep explicit connections in. The + * listening TCP endpoint will exist in the usual ephash above and + * accept only INIT's. It will be incapable of sending off an INIT. + * When a dg arrives we must look in the normal ephash. If we find a + * TCP endpoint that will tell us to go to the specific endpoint + * hash and re-hash to find the right assoc/socket. If we find a UDP + * model socket we then must complete the lookup. If this fails, + * i.e. no association can be found then we must continue to see if + * a sctp_peeloff()'d socket is in the tcpephash (a spun off socket + * acts like a TCP model connected socket). + */ + struct sctppcbhead *sctp_tcpephash; + u_long hashtcpmark; + uint32_t hashtblsize; + + struct sctp_vrflist *sctp_vrfhash; + u_long hashvrfmark; + + struct sctp_ifnlist *vrf_ifn_hash; + u_long vrf_ifn_hashmark; + + struct sctppcbhead listhead; + struct sctpladdr addr_wq; + +#if defined(__APPLE__) && !defined(__Userspace__) + struct inpcbhead inplisthead; + struct inpcbinfo sctbinfo; +#endif + /* ep zone info */ + sctp_zone_t ipi_zone_ep; + sctp_zone_t ipi_zone_asoc; + sctp_zone_t ipi_zone_laddr; + sctp_zone_t ipi_zone_net; + sctp_zone_t ipi_zone_chunk; + sctp_zone_t ipi_zone_readq; + sctp_zone_t ipi_zone_strmoq; + sctp_zone_t ipi_zone_asconf; + sctp_zone_t ipi_zone_asconf_ack; + +#if defined(__FreeBSD__) && !defined(__Userspace__) + struct rwlock ipi_ep_mtx; + struct mtx ipi_iterator_wq_mtx; + struct rwlock ipi_addr_mtx; + struct mtx ipi_pktlog_mtx; + struct mtx wq_addr_mtx; +#elif defined(SCTP_PROCESS_LEVEL_LOCKS) + userland_rwlock_t ipi_ep_mtx; + userland_rwlock_t ipi_addr_mtx; + userland_mutex_t ipi_count_mtx; + userland_mutex_t ipi_pktlog_mtx; + userland_mutex_t wq_addr_mtx; +#elif defined(__APPLE__) && !defined(__Userspace__) +#ifdef _KERN_LOCKS_H_ + lck_mtx_t *ipi_addr_mtx; + lck_mtx_t *ipi_count_mtx; + lck_mtx_t *ipi_pktlog_mtx; + lck_mtx_t *logging_mtx; + lck_mtx_t *wq_addr_mtx; +#else + void *ipi_count_mtx; + void *logging_mtx; +#endif /* _KERN_LOCKS_H_ */ +#elif defined(_WIN32) && !defined(__Userspace__) + struct rwlock ipi_ep_lock; + struct rwlock ipi_addr_lock; + struct spinlock ipi_pktlog_mtx; + struct rwlock wq_addr_mtx; +#elif defined(__Userspace__) +#endif + uint32_t ipi_count_ep; + + /* assoc/tcb zone info */ + uint32_t ipi_count_asoc; + + /* local addrlist zone info */ + uint32_t ipi_count_laddr; + + /* remote addrlist zone info */ + uint32_t ipi_count_raddr; + + /* chunk structure list for output */ + uint32_t ipi_count_chunk; + + /* socket queue zone info */ + uint32_t ipi_count_readq; + + /* socket queue zone info */ + uint32_t ipi_count_strmoq; + + /* Number of vrfs */ + uint32_t ipi_count_vrfs; + + /* Number of ifns */ + uint32_t ipi_count_ifns; + + /* Number of ifas */ + uint32_t ipi_count_ifas; + + /* system wide number of free chunks hanging around */ + uint32_t ipi_free_chunks; + uint32_t ipi_free_strmoq; + + struct sctpvtaghead vtag_timewait[SCTP_STACK_VTAG_HASH_SIZE]; + + /* address work queue handling */ + struct sctp_timer addr_wq_timer; + +#if defined(_SCTP_NEEDS_CALLOUT_) || defined(_USER_SCTP_NEEDS_CALLOUT_) + struct calloutlist callqueue; +#endif +}; + +struct sctp_base_info { + /* All static structures that + * anchor the system must be here. + */ + struct sctp_epinfo sctppcbinfo; +#if defined(__FreeBSD__) && !defined(__Userspace__) +#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT) + struct sctpstat *sctpstat; +#else + struct sctpstat sctpstat; +#endif +#else + struct sctpstat sctpstat; +#endif + struct sctp_sysctl sctpsysctl; + uint8_t first_time; + char sctp_pcb_initialized; +#if defined(SCTP_PACKET_LOGGING) + int packet_log_writers; + int packet_log_end; + uint8_t packet_log_buffer[SCTP_PACKET_LOG_SIZE]; +#endif +#if defined(__FreeBSD__) && !defined(__Userspace__) + eventhandler_tag eh_tag; +#endif +#if defined(__APPLE__) && !defined(__Userspace__) + int sctp_main_timer_ticks; +#endif +#if defined(__Userspace__) + userland_mutex_t timer_mtx; + userland_thread_t timer_thread; + int timer_thread_should_exit; + int iterator_thread_started; + int timer_thread_started; +#if !defined(_WIN32) + pthread_mutexattr_t mtx_attr; + pthread_rwlockattr_t rwlock_attr; +#if defined(INET) || defined(INET6) + int userspace_route; + userland_thread_t recvthreadroute; +#endif +#endif +#ifdef INET +#if defined(_WIN32) && !defined(__MINGW32__) + SOCKET userspace_rawsctp; + SOCKET userspace_udpsctp; +#else + int userspace_rawsctp; + int userspace_udpsctp; +#endif + userland_thread_t recvthreadraw; + userland_thread_t recvthreadudp; +#endif +#ifdef INET6 +#if defined(_WIN32) && !defined(__MINGW32__) + SOCKET userspace_rawsctp6; + SOCKET userspace_udpsctp6; +#else + int userspace_rawsctp6; + int userspace_udpsctp6; +#endif + userland_thread_t recvthreadraw6; + userland_thread_t recvthreadudp6; +#endif + int (*conn_output)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df); + void (*debug_printf)(const char *format, ...); + int crc32c_offloaded; +#endif +}; + +/*- + * Here we have all the relevant information for each SCTP entity created. We + * will need to modify this as approprate. We also need to figure out how to + * access /dev/random. + */ +struct sctp_pcb { + unsigned int time_of_secret_change; /* number of seconds from + * timeval.tv_sec */ + uint32_t secret_key[SCTP_HOW_MANY_SECRETS][SCTP_NUMBER_OF_SECRETS]; + unsigned int size_of_a_cookie; + + uint32_t sctp_timeoutticks[SCTP_NUM_TMRS]; + uint32_t sctp_minrto; + uint32_t sctp_maxrto; + uint32_t initial_rto; + uint32_t initial_init_rto_max; + + unsigned int sctp_sack_freq; + uint32_t sctp_sws_sender; + uint32_t sctp_sws_receiver; + + uint32_t sctp_default_cc_module; + uint32_t sctp_default_ss_module; + /* authentication related fields */ + struct sctp_keyhead shared_keys; + sctp_auth_chklist_t *local_auth_chunks; + sctp_hmaclist_t *local_hmacs; + uint16_t default_keyid; + uint32_t default_mtu; + + /* various thresholds */ + /* Max times I will init at a guy */ + uint16_t max_init_times; + + /* Max times I will send before we consider someone dead */ + uint16_t max_send_times; + + uint16_t def_net_failure; + + uint16_t def_net_pf_threshold; + + /* number of streams to pre-open on a association */ + uint16_t pre_open_stream_count; + uint16_t max_open_streams_intome; + + /* random number generator */ + uint32_t random_counter; + uint8_t random_numbers[SCTP_SIGNATURE_ALOC_SIZE]; + uint8_t random_store[SCTP_SIGNATURE_ALOC_SIZE]; + + /* + * This timer is kept running per endpoint. When it fires it will + * change the secret key. The default is once a hour + */ + struct sctp_timer signature_change; + + uint32_t def_cookie_life; + /* defaults to 0 */ + uint32_t auto_close_time; + uint32_t initial_sequence_debug; + uint32_t adaptation_layer_indicator; + uint8_t adaptation_layer_indicator_provided; + uint32_t store_at; + uint32_t max_burst; + uint32_t fr_max_burst; +#ifdef INET6 + uint32_t default_flowlabel; +#endif + uint8_t default_dscp; + char current_secret_number; + char last_secret_number; + uint16_t port; /* remote UDP encapsulation port */ +}; + +#ifndef SCTP_ALIGNMENT +#define SCTP_ALIGNMENT 32 +#endif + +#ifndef SCTP_ALIGNM1 +#define SCTP_ALIGNM1 (SCTP_ALIGNMENT-1) +#endif + +#define sctp_lport ip_inp.inp.inp_lport + +struct sctp_pcbtsn_rlog { + uint32_t vtag; + uint16_t strm; + uint16_t seq; + uint16_t sz; + uint16_t flgs; +}; +#define SCTP_READ_LOG_SIZE 135 /* we choose the number to make a pcb a page */ + +struct sctp_inpcb { + /*- + * put an inpcb in front of it all, kind of a waste but we need to + * for compatibility with all the other stuff. + */ + union { + struct inpcb inp; + char align[(sizeof(struct inpcb) + SCTP_ALIGNM1) & + ~SCTP_ALIGNM1]; + } ip_inp; +#if defined(__APPLE__) && !defined(__Userspace__) + /* leave some space in case i386 inpcb is bigger than ppc */ + uint8_t padding[128]; +#endif + + /* Socket buffer lock protects read_queue and of course sb_cc */ + struct sctp_readhead read_queue; + + LIST_ENTRY(sctp_inpcb) sctp_list; /* lists all endpoints */ + /* hash of all endpoints for model */ + LIST_ENTRY(sctp_inpcb) sctp_hash; + /* count of local addresses bound, 0 if bound all */ + int laddr_count; + + /* list of addrs in use by the EP, NULL if bound-all */ + struct sctpladdr sctp_addr_list; + /* used for source address selection rotation when we are subset bound */ + struct sctp_laddr *next_addr_touse; + + /* back pointer to our socket */ + struct socket *sctp_socket; + uint64_t sctp_features; /* Feature flags */ + uint32_t sctp_flags; /* INP state flag set */ + uint32_t sctp_mobility_features; /* Mobility Feature flags */ + struct sctp_pcb sctp_ep;/* SCTP ep data */ + /* head of the hash of all associations */ + struct sctpasochead *sctp_tcbhash; + u_long sctp_hashmark; + /* head of the list of all associations */ + struct sctpasochead sctp_asoc_list; +#ifdef SCTP_TRACK_FREED_ASOCS + struct sctpasochead sctp_asoc_free_list; +#endif + uint32_t sctp_frag_point; + uint32_t partial_delivery_point; + uint32_t sctp_context; + uint32_t max_cwnd; + uint8_t local_strreset_support; + uint32_t sctp_cmt_on_off; + uint8_t ecn_supported; + uint8_t prsctp_supported; + uint8_t auth_supported; + uint8_t idata_supported; + uint8_t asconf_supported; + uint8_t reconfig_supported; + uint8_t nrsack_supported; + uint8_t pktdrop_supported; + uint8_t zero_checksum; + struct sctp_nonpad_sndrcvinfo def_send; + /*- + * These three are here for the sosend_dgram + * (pkt, pkt_last and control). + * routine. However, I don't think anyone in + * the current FreeBSD kernel calls this. So + * they are candidates with sctp_sendm for + * de-supporting. + */ + struct mbuf *pkt, *pkt_last; + struct mbuf *control; +#if defined(__FreeBSD__) && !defined(__Userspace__) + struct mtx inp_mtx; + struct mtx inp_create_mtx; + struct mtx inp_rdata_mtx; + int32_t refcount; +#elif defined(SCTP_PROCESS_LEVEL_LOCKS) + userland_mutex_t inp_mtx; + userland_mutex_t inp_create_mtx; + userland_mutex_t inp_rdata_mtx; + int32_t refcount; +#elif defined(__APPLE__) && !defined(__Userspace__) +#if defined(SCTP_APPLE_RWLOCK) + lck_rw_t *inp_mtx; +#else + lck_mtx_t *inp_mtx; +#endif + lck_mtx_t *inp_create_mtx; + lck_mtx_t *inp_rdata_mtx; +#elif defined(_WIN32) && !defined(__Userspace__) + struct rwlock inp_lock; + struct spinlock inp_create_lock; + struct spinlock inp_rdata_lock; + int32_t refcount; +#elif defined(__Userspace__) + int32_t refcount; +#endif +#if defined(__APPLE__) && !defined(__Userspace__) + int32_t refcount; + + uint32_t lock_caller1; + uint32_t lock_caller2; + uint32_t lock_caller3; + uint32_t unlock_caller1; + uint32_t unlock_caller2; + uint32_t unlock_caller3; + uint32_t getlock_caller1; + uint32_t getlock_caller2; + uint32_t getlock_caller3; + uint32_t gen_count; + uint32_t lock_gen_count; + uint32_t unlock_gen_count; + uint32_t getlock_gen_count; + + uint32_t i_am_here_file; + uint32_t i_am_here_line; +#endif + uint32_t def_vrf_id; + uint16_t fibnum; +#ifdef SCTP_MVRF + uint32_t *m_vrf_ids; + uint32_t num_vrfs; + uint32_t vrf_size; +#endif + uint32_t total_sends; + uint32_t total_recvs; + uint32_t last_abort_code; + uint32_t total_nospaces; + struct sctpasochead *sctp_asocidhash; + u_long hashasocidmark; + uint32_t sctp_associd_counter; + +#ifdef SCTP_ASOCLOG_OF_TSNS + struct sctp_pcbtsn_rlog readlog[SCTP_READ_LOG_SIZE]; + uint32_t readlog_index; +#endif +#if defined(__Userspace__) + void *ulp_info; + int (*recv_callback)(struct socket *, union sctp_sockstore, void *, size_t, + struct sctp_rcvinfo, int, void *); + uint32_t send_sb_threshold; + int (*send_callback)(struct socket *, uint32_t, void *); +#endif +}; + +#if defined(__Userspace__) +int register_recv_cb (struct socket *, + int (*)(struct socket *, union sctp_sockstore, void *, size_t, + struct sctp_rcvinfo, int, void *)); +int register_send_cb (struct socket *, uint32_t, int (*)(struct socket *, uint32_t, void *)); +int register_ulp_info (struct socket *, void *); +int retrieve_ulp_info (struct socket *, void **); + +#endif +struct sctp_tcb { + struct socket *sctp_socket; /* back pointer to socket */ + struct sctp_inpcb *sctp_ep; /* back pointer to ep */ + LIST_ENTRY(sctp_tcb) sctp_tcbhash; /* next link in hash + * table */ + LIST_ENTRY(sctp_tcb) sctp_tcblist; /* list of all of the + * TCB's */ + LIST_ENTRY(sctp_tcb) sctp_tcbasocidhash; /* next link in asocid + * hash table + */ + LIST_ENTRY(sctp_tcb) sctp_asocs; /* vtag hash list */ + struct sctp_block_entry *block_entry; /* pointer locked by socket + * send buffer */ + struct sctp_association asoc; + /*- + * freed_by_sorcv_sincelast is protected by the sockbuf_lock NOT the + * tcb_lock. Its special in this way to help avoid extra mutex calls + * in the reading of data. + */ + uint32_t freed_by_sorcv_sincelast; + uint32_t total_sends; + uint32_t total_recvs; + int freed_from_where; + uint16_t rport; /* remote port in network format */ + uint16_t resv; +#if defined(__FreeBSD__) && !defined(__Userspace__) + struct mtx tcb_mtx; +#elif defined(SCTP_PROCESS_LEVEL_LOCKS) + userland_mutex_t tcb_mtx; +#elif defined(__APPLE__) && !defined(__Userspace__) + lck_mtx_t* tcb_mtx; +#elif defined(_WIN32) && !defined(__Userspace__) + struct spinlock tcb_lock; +#elif defined(__Userspace__) +#endif +#if defined(__APPLE__) && !defined(__Userspace__) + uint32_t caller1; + uint32_t caller2; + uint32_t caller3; +#endif +}; + +#if defined(__FreeBSD__) && !defined(__Userspace__) +#include <netinet/sctp_lock_bsd.h> +#elif defined(__APPLE__) && !defined(__Userspace__) +/* + * Apple MacOS X 10.4 "Tiger" + */ + +#include <netinet/sctp_lock_apple_fg.h> + +#elif defined(SCTP_PROCESS_LEVEL_LOCKS) + +#include <netinet/sctp_process_lock.h> + +#elif defined(_WIN32) && !defined(__Userspace__) + +#include <netinet/sctp_lock_windows.h> + +#elif defined(__Userspace__) + +#include <netinet/sctp_lock_userspace.h> + +#else +/* + * Pre-5.x FreeBSD, and others. + */ +#include <netinet/sctp_lock_empty.h> +#endif + +#if defined(_KERNEL) || defined(__Userspace__) + +/* Attention Julian, this is the extern that + * goes with the base info. sctp_pcb.c has + * the real definition. + */ +#if defined(__FreeBSD__) && !defined(__Userspace__) +VNET_DECLARE(struct sctp_base_info, system_base_info); +#else +extern struct sctp_base_info system_base_info; +#endif + +#ifdef INET6 +int SCTP6_ARE_ADDR_EQUAL(struct sockaddr_in6 *a, struct sockaddr_in6 *b); +#endif + +void sctp_fill_pcbinfo(struct sctp_pcbinfo *); + +struct sctp_ifn * +sctp_find_ifn(void *ifn, uint32_t ifn_index); + +struct sctp_vrf *sctp_allocate_vrf(int vrfid); +struct sctp_vrf *sctp_find_vrf(uint32_t vrfid); +void sctp_free_vrf(struct sctp_vrf *vrf); + +/*- + * Change address state, can be used if + * O/S supports telling transports about + * changes to IFA/IFN's (link layer triggers). + * If a ifn goes down, we will do src-addr-selection + * and NOT use that, as a source address. This does + * not stop the routing system from routing out + * that interface, but we won't put it as a source. + */ +void sctp_mark_ifa_addr_down(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); +void sctp_mark_ifa_addr_up(uint32_t vrf_id, struct sockaddr *addr, const char *if_name, uint32_t ifn_index); + +struct sctp_ifa * +sctp_add_addr_to_vrf(uint32_t vrfid, + void *ifn, uint32_t ifn_index, uint32_t ifn_type, + const char *if_name, + void *ifa, struct sockaddr *addr, uint32_t ifa_flags, + int dynamic_add); + +void sctp_update_ifn_mtu(uint32_t ifn_index, uint32_t mtu); + +void sctp_free_ifn(struct sctp_ifn *sctp_ifnp); +void sctp_free_ifa(struct sctp_ifa *sctp_ifap); + +void sctp_del_addr_from_vrf(uint32_t vrfid, struct sockaddr *addr, + uint32_t ifn_index, const char *if_name); + +struct sctp_nets *sctp_findnet(struct sctp_tcb *, struct sockaddr *); + +struct sctp_inpcb *sctp_pcb_findep(struct sockaddr *, int, int, uint32_t); + +#if defined(__FreeBSD__) && !defined(__Userspace__) +int +sctp_inpcb_bind(struct socket *, struct sockaddr *, + struct sctp_ifa *, struct thread *); +int +sctp_inpcb_bind_locked(struct sctp_inpcb *, struct sockaddr *, + struct sctp_ifa *, struct thread *); +#elif defined(_WIN32) && !defined(__Userspace__) +int +sctp_inpcb_bind(struct socket *, struct sockaddr *, + struct sctp_ifa *, PKTHREAD); +int +sctp_inpcb_bind_locked(struct sctp_inpcb *, struct sockaddr *, + struct sctp_ifa *, PKTHREAD); +#else +/* struct proc is a dummy for __Userspace__ */ +int +sctp_inpcb_bind(struct socket *, struct sockaddr *, + struct sctp_ifa *, struct proc *); +int +sctp_inpcb_bind_locked(struct sctp_inpcb *, struct sockaddr *, + struct sctp_ifa *, struct proc *); +#endif + +struct sctp_tcb * +sctp_findassociation_addr(struct mbuf *, int, + struct sockaddr *, struct sockaddr *, + struct sctphdr *, struct sctp_chunkhdr *, struct sctp_inpcb **, + struct sctp_nets **, uint32_t vrf_id); + +struct sctp_tcb * +sctp_findassociation_addr_sa(struct sockaddr *, + struct sockaddr *, struct sctp_inpcb **, struct sctp_nets **, int, uint32_t); + +void +sctp_move_pcb_and_assoc(struct sctp_inpcb *, struct sctp_inpcb *, + struct sctp_tcb *); + +/*- + * For this call ep_addr, the to is the destination endpoint address of the + * peer (relative to outbound). The from field is only used if the TCP model + * is enabled and helps distingush amongst the subset bound (non-boundall). + * The TCP model MAY change the actual ep field, this is why it is passed. + */ +struct sctp_tcb * +sctp_findassociation_ep_addr(struct sctp_inpcb **, + struct sockaddr *, struct sctp_nets **, struct sockaddr *, + struct sctp_tcb *); + +struct sctp_tcb * +sctp_findasoc_ep_asocid_locked(struct sctp_inpcb *inp, sctp_assoc_t asoc_id, int want_lock); + +struct sctp_tcb * +sctp_findassociation_ep_asocid(struct sctp_inpcb *, + sctp_assoc_t, int); + +struct sctp_tcb * +sctp_findassociation_ep_asconf(struct mbuf *, int, struct sockaddr *, + struct sctphdr *, struct sctp_inpcb **, struct sctp_nets **, uint32_t vrf_id); + +int sctp_inpcb_alloc(struct socket *so, uint32_t vrf_id); + +int sctp_is_address_on_local_host(struct sockaddr *addr, uint32_t vrf_id); + +void sctp_inpcb_free(struct sctp_inpcb *, int, int); + +#define SCTP_DONT_INITIALIZE_AUTH_PARAMS 0 +#define SCTP_INITIALIZE_AUTH_PARAMS 1 + +#if defined(__FreeBSD__) && !defined(__Userspace__) +struct sctp_tcb * +sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, + int *, uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, + struct thread *, int); +struct sctp_tcb * +sctp_aloc_assoc_connected(struct sctp_inpcb *, struct sockaddr *, + int *, uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, + struct thread *, int); +#elif defined(_WIN32) && !defined(__Userspace__) +struct sctp_tcb * +sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, + uint32_t, uint32_t, uint16_t, uint16_t, PKTHREAD, int); +struct sctp_tcb * +sctp_aloc_assoc_connected(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, + uint32_t, uint32_t, uint16_t, uint16_t, PKTHREAD, int); +#else +/* proc will be NULL for __Userspace__ */ +struct sctp_tcb * +sctp_aloc_assoc(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, + uint32_t, uint32_t, uint16_t, uint16_t, struct proc *, int); +struct sctp_tcb * +sctp_aloc_assoc_connected(struct sctp_inpcb *, struct sockaddr *, int *, uint32_t, + uint32_t, uint32_t, uint16_t, uint16_t, struct proc *, int); +#endif + +int sctp_free_assoc(struct sctp_inpcb *, struct sctp_tcb *, int, int); + +void sctp_add_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *, uint32_t); + +void sctp_del_local_addr_ep(struct sctp_inpcb *, struct sctp_ifa *); + +int sctp_add_remote_addr(struct sctp_tcb *, struct sockaddr *, struct sctp_nets **, uint16_t, int, int); + +void sctp_remove_net(struct sctp_tcb *, struct sctp_nets *); + +int sctp_del_remote_addr(struct sctp_tcb *, struct sockaddr *); + +#if defined(__Userspace__) +void sctp_pcb_init(int); +#else +void sctp_pcb_init(void); +#endif + +void sctp_pcb_finish(void); + +void sctp_add_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); +void sctp_del_local_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); + +int +sctp_load_addresses_from_init(struct sctp_tcb *, struct mbuf *, int, int, + struct sockaddr *, struct sockaddr *, struct sockaddr *, uint16_t); + +int +sctp_set_primary_addr(struct sctp_tcb *, struct sockaddr *, + struct sctp_nets *); + +bool +sctp_is_vtag_good(uint32_t, uint16_t lport, uint16_t rport, struct timeval *); + +int sctp_destination_is_reachable(struct sctp_tcb *, struct sockaddr *); + +int sctp_swap_inpcb_for_listen(struct sctp_inpcb *inp); + +void sctp_clean_up_stream(struct sctp_tcb *stcb, struct sctp_readhead *rh); + +void +sctp_pcb_add_flags(struct sctp_inpcb *, uint32_t); + +/*- + * Null in last arg inpcb indicate run on ALL ep's. Specific inp in last arg + * indicates run on ONLY assoc's of the specified endpoint. + */ +int +sctp_initiate_iterator(inp_func inpf, + asoc_func af, + inp_func inpe, + uint32_t, uint32_t, + uint32_t, void *, + uint32_t, + end_func ef, + struct sctp_inpcb *, + uint8_t co_off); +#if defined(__FreeBSD__) && !defined(__Userspace__) +#if defined(SCTP_MCORE_INPUT) && defined(SMP) +void +sctp_queue_to_mcore(struct mbuf *m, int off, int cpu_to_use); + +#endif +#endif + +#endif /* _KERNEL */ +#endif /* !__sctp_pcb_h__ */ |