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-rw-r--r--netwerk/sctp/src/netinet/sctputil.h390
1 files changed, 390 insertions, 0 deletions
diff --git a/netwerk/sctp/src/netinet/sctputil.h b/netwerk/sctp/src/netinet/sctputil.h
new file mode 100644
index 0000000000..74140b99d2
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+++ b/netwerk/sctp/src/netinet/sctputil.h
@@ -0,0 +1,390 @@
+/*-
+ * 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_UTIL_H_
+#define _NETINET_SCTP_UTIL_H_
+
+#if defined(_KERNEL) || defined(__Userspace__)
+
+#define SCTP_READ_LOCK_HELD 1
+#define SCTP_READ_LOCK_NOT_HELD 0
+
+#ifdef SCTP_ASOCLOG_OF_TSNS
+void sctp_print_out_track_log(struct sctp_tcb *stcb);
+#endif
+
+#ifdef SCTP_MBUF_LOGGING
+struct mbuf *sctp_m_free(struct mbuf *m);
+void sctp_m_freem(struct mbuf *m);
+#else
+#define sctp_m_free m_free
+#define sctp_m_freem m_freem
+#endif
+
+#if defined(SCTP_LOCAL_TRACE_BUF)
+void
+sctp_log_trace(uint32_t fr, const char *str SCTP_UNUSED, uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t e, uint32_t f);
+#endif
+
+#define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
+
+/*
+ * Function prototypes
+ */
+int32_t
+sctp_map_assoc_state(int);
+
+uint32_t
+sctp_get_ifa_hash_val(struct sockaddr *addr);
+
+struct sctp_ifa *
+sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock);
+
+struct sctp_ifa *
+sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock);
+
+uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
+
+uint32_t sctp_select_a_tag(struct sctp_inpcb *, uint16_t lport, uint16_t rport, int);
+
+int sctp_init_asoc(struct sctp_inpcb *, struct sctp_tcb *, uint32_t, uint32_t, uint32_t, uint16_t);
+
+void sctp_fill_random_store(struct sctp_pcb *);
+
+void
+sctp_notify_stream_reset_add(struct sctp_tcb *stcb, uint16_t numberin,
+ uint16_t numberout, int flag);
+void
+sctp_notify_stream_reset_tsn(struct sctp_tcb *stcb, uint32_t sending_tsn, uint32_t recv_tsn, int flag);
+
+/*
+ * NOTE: sctp_timer_start() will increment the reference count of any relevant
+ * structure the timer is referencing, in order to prevent a race condition
+ * between the timer executing and the structure being freed.
+ *
+ * When the timer fires or sctp_timer_stop() is called, these references are
+ * removed.
+ */
+void
+sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
+ struct sctp_nets *);
+
+void
+sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
+ struct sctp_nets *, uint32_t);
+
+int
+sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id);
+
+void
+sctp_wakeup_the_read_socket(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
+ int so_locked
+#if !(defined(__APPLE__) && !defined(__Userspace__))
+ SCTP_UNUSED
+#endif
+);
+
+#if defined(__Userspace__)
+void sctp_invoke_recv_callback(struct sctp_inpcb *,
+ struct sctp_tcb *,
+ struct sctp_queued_to_read *,
+ int);
+
+#endif
+void
+sctp_add_to_readq(struct sctp_inpcb *inp,
+ struct sctp_tcb *stcb,
+ struct sctp_queued_to_read *control,
+ struct sockbuf *sb,
+ int end,
+ int inpread_locked,
+ int so_locked);
+
+void sctp_iterator_worker(void);
+
+uint32_t sctp_get_prev_mtu(uint32_t);
+uint32_t sctp_get_next_mtu(uint32_t);
+
+void
+sctp_timeout_handler(void *);
+
+int
+sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
+ struct sctp_nets *, struct timeval *, int);
+
+uint32_t sctp_calculate_len(struct mbuf *);
+
+caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
+
+struct sctp_paramhdr *
+sctp_get_next_param(struct mbuf *, int,
+ struct sctp_paramhdr *, int);
+
+struct mbuf *
+sctp_add_pad_tombuf(struct mbuf *, int);
+
+struct mbuf *
+sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
+
+void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *, int);
+
+void
+sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
+ struct sctp_inpcb *new_inp,
+ struct sctp_tcb *stcb, int waitflags);
+
+void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
+
+/* Stop all timers for association and remote addresses. */
+void sctp_stop_association_timers(struct sctp_tcb *, bool);
+
+void sctp_report_all_outbound(struct sctp_tcb *, uint16_t, int);
+
+int sctp_expand_mapping_array(struct sctp_association *, uint32_t);
+
+void sctp_abort_notification(struct sctp_tcb *, bool, bool, uint16_t,
+ struct sctp_abort_chunk *, int);
+
+/* We abort responding to an IP packet for some reason */
+void
+sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *, struct mbuf *,
+ int, struct sockaddr *, struct sockaddr *,
+ struct sctphdr *, struct mbuf *,
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+ uint8_t, uint32_t,
+#endif
+ uint32_t, uint16_t);
+
+/* We choose to abort via user input */
+void
+sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *,
+ struct mbuf *, bool, int);
+
+void sctp_handle_ootb(struct mbuf *, int, int,
+ struct sockaddr *, struct sockaddr *,
+ struct sctphdr *, struct sctp_inpcb *,
+ struct mbuf *,
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+ uint8_t, uint32_t, uint16_t,
+#endif
+ uint32_t, uint16_t);
+
+int sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr,
+ int totaddr, int *error);
+
+int
+sctp_connectx_helper_find(struct sctp_inpcb *, struct sockaddr *,
+ unsigned int, unsigned int *, unsigned int *, unsigned int);
+
+int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
+#ifdef INET6
+uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
+
+#if defined(SCTP_EMBEDDED_V6_SCOPE)
+struct sockaddr_in6 *
+sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
+
+#ifdef SCTP_KAME
+#define sctp_recover_scope_mac(addr, store) do { \
+ if ((addr->sin6_family == AF_INET6) && \
+ (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
+ *store = *addr; \
+ if (addr->sin6_scope_id == 0) { \
+ if (!sa6_recoverscope(store)) { \
+ addr = store; \
+ } \
+ } else { \
+ in6_clearscope(&addr->sin6_addr); \
+ addr = store; \
+ } \
+ } \
+} while (0)
+#else
+#define sctp_recover_scope_mac(addr, store) do { \
+ if ((addr->sin6_family == AF_INET6) && \
+ (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
+ *store = *addr; \
+ if (addr->sin6_scope_id == 0) { \
+ if (!in6_recoverscope(store, &store->sin6_addr, \
+ NULL)) { \
+ addr = store; \
+ } \
+ } else { \
+ in6_clearscope(&addr->sin6_addr); \
+ addr = store; \
+ } \
+ } \
+} while (0)
+#endif
+#endif
+#endif
+
+int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
+
+void sctp_print_address(struct sockaddr *);
+
+int
+sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
+ uint8_t, int);
+
+struct mbuf *sctp_generate_cause(uint16_t, char *);
+struct mbuf *sctp_generate_no_user_data_cause(uint32_t);
+
+void sctp_bindx_add_address(struct socket *so, struct sctp_inpcb *inp,
+ struct sockaddr *sa, uint32_t vrf_id, int *error,
+ void *p);
+void sctp_bindx_delete_address(struct sctp_inpcb *inp, struct sockaddr *sa,
+ uint32_t vrf_id, int *error);
+
+int sctp_local_addr_count(struct sctp_tcb *stcb);
+
+void
+sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
+ struct sctp_tmit_chunk *, int);
+
+#define sctp_free_spbufspace(stcb, asoc, sp) \
+do { \
+ if (sp->data != NULL) { \
+ if ((asoc)->total_output_queue_size >= sp->length) { \
+ atomic_subtract_int(&(asoc)->total_output_queue_size, sp->length); \
+ } else { \
+ (asoc)->total_output_queue_size = 0; \
+ } \
+ if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
+ (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
+ if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
+ atomic_subtract_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
+ } else { \
+ stcb->sctp_socket->so_snd.sb_cc = 0; \
+ } \
+ } \
+ } \
+} while (0)
+
+#define sctp_snd_sb_alloc(stcb, sz) \
+do { \
+ atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
+ if ((stcb->sctp_socket != NULL) && \
+ ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
+ (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
+ atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
+ } \
+} while (0)
+
+/* functions to start/stop udp tunneling */
+#if (defined(__APPLE__) || defined(__FreeBSD__)) && !defined(__Userspace__)
+void sctp_over_udp_stop(void);
+int sctp_over_udp_start(void);
+#endif
+#if defined(_WIN32) && !defined(__Userspace__)
+void sctp_over_udp_restart(void);
+#endif
+
+int
+sctp_soreceive(struct socket *so, struct sockaddr **psa,
+ struct uio *uio,
+ struct mbuf **mp0,
+ struct mbuf **controlp,
+ int *flagsp);
+
+void
+sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
+
+void
+sctp_wakeup_log(struct sctp_tcb *stcb,
+ uint32_t wake_cnt, int from);
+
+void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
+
+void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
+
+#ifdef SCTP_MBUF_LOGGING
+void
+sctp_log_mb(struct mbuf *m, int from);
+
+void
+sctp_log_mbc(struct mbuf *m, int from);
+#endif
+
+void
+sctp_sblog(struct sockbuf *sb,
+ struct sctp_tcb *stcb, int from, int incr);
+
+void
+sctp_log_strm_del(struct sctp_queued_to_read *control,
+ struct sctp_queued_to_read *poschk,
+ int from);
+void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
+void rto_logging(struct sctp_nets *net, int from);
+
+void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
+
+void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
+void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
+void sctp_log_block(uint8_t, struct sctp_association *, ssize_t);
+void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
+void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
+int sctp_fill_stat_log(void *, size_t *);
+void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
+void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
+void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
+void sctp_print_mapping_array(struct sctp_association *asoc);
+void sctp_clr_stat_log(void);
+
+#ifdef SCTP_AUDITING_ENABLED
+void
+sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
+ struct sctp_nets *);
+void sctp_audit_log(uint8_t, uint8_t);
+
+#endif
+uint32_t sctp_min_mtu(uint32_t, uint32_t, uint32_t);
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+void sctp_hc_set_mtu(union sctp_sockstore *, uint16_t, uint32_t);
+uint32_t sctp_hc_get_mtu(union sctp_sockstore *, uint16_t);
+#endif
+void sctp_set_state(struct sctp_tcb *, int);
+void sctp_add_substate(struct sctp_tcb *, int);
+uint32_t sctp_ticks_to_msecs(uint32_t);
+uint32_t sctp_msecs_to_ticks(uint32_t);
+uint32_t sctp_ticks_to_secs(uint32_t);
+uint32_t sctp_secs_to_ticks(uint32_t);
+
+#endif /* _KERNEL */
+#endif
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