diff options
Diffstat (limited to 'netwerk/sctp/src/netinet/sctputil.h')
| -rwxr-xr-x | netwerk/sctp/src/netinet/sctputil.h | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/netwerk/sctp/src/netinet/sctputil.h b/netwerk/sctp/src/netinet/sctputil.h new file mode 100755 index 000000000..cca915bb4 --- /dev/null +++ b/netwerk/sctp/src/netinet/sctputil.h @@ -0,0 +1,414 @@ +/*- + * 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. + */ + +#ifdef __FreeBSD__ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD: head/sys/netinet/sctputil.h 276914 2015-01-10 20:49:57Z tuexen $"); +#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) || defined(__APPLE__) +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 + */ +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); + +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); + +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_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t); + +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 +#if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) + SCTP_UNUSED +#endif + ); + +int +sctp_append_to_readq(struct sctp_inpcb *inp, + struct sctp_tcb *stcb, + struct sctp_queued_to_read *control, + struct mbuf *m, + int end, + int new_cumack, + struct sockbuf *sb); + + +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 *); + +uint32_t +sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *, + struct sctp_nets *, struct timeval *, int, 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 +#if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) + SCTP_UNUSED +#endif + ); + +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 *); + +void sctp_report_all_outbound(struct sctp_tcb *, uint16_t, int, int +#if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) + SCTP_UNUSED +#endif + ); + +int sctp_expand_mapping_array(struct sctp_association *, uint32_t); + +void sctp_abort_notification(struct sctp_tcb *, uint8_t, uint16_t, + struct sctp_abort_chunk *, int +#if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) + SCTP_UNUSED +#endif + ); + +/* 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__) + 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 *, int +#if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) + SCTP_UNUSED +#endif +); + +void sctp_handle_ootb(struct mbuf *, int, int, + struct sockaddr *, struct sockaddr *, + struct sctphdr *, struct sctp_inpcb *, + struct mbuf *, +#if defined(__FreeBSD__) + uint8_t, uint32_t, +#endif + uint32_t, uint16_t); + +int sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr, + int totaddr, int *error); + +struct sctp_tcb * +sctp_connectx_helper_find(struct sctp_inpcb *inp, struct sockaddr *addr, + int *totaddr, int *num_v4, int *num_v6, int *error, int limit, int *bad_addr); + +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 +#if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) + SCTP_UNUSED +#endif +); + +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, sctp_assoc_t assoc_id, + uint32_t vrf_id, int *error, void *p); +void sctp_bindx_delete_address(struct sctp_inpcb *inp, + struct sockaddr *sa, sctp_assoc_t assoc_id, + uint32_t vrf_id, int *error); + +int sctp_local_addr_count(struct sctp_tcb *stcb); + +#ifdef SCTP_MBCNT_LOGGING +void +sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *, + struct sctp_tmit_chunk *, int); + +#else +#define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \ +do { \ + if (tp1->data != NULL) { \ + atomic_subtract_int(&((asoc)->chunks_on_out_queue), chk_cnt); \ + if ((asoc)->total_output_queue_size >= tp1->book_size) { \ + atomic_subtract_int(&((asoc)->total_output_queue_size), tp1->book_size); \ + } 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 >= tp1->book_size) { \ + atomic_subtract_int(&((stcb)->sctp_socket->so_snd.sb_cc), tp1->book_size); \ + } else { \ + stcb->sctp_socket->so_snd.sb_cc = 0; \ + } \ + } \ + } \ +} while (0) + +#endif + +#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__) +void sctp_over_udp_stop(void); +int sctp_over_udp_start(void); +#endif +#if defined(__Windows__) +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 *, int); +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 +#endif /* _KERNEL */ +#endif |