d61a0ae066
- bounded cookie-life to 1 second minimum in socket option set. - Delayed_ack_time becomes delayed_ack per new socket api document. - Improve port number selection, we now use low/high bounds and no chance of a endless loop. Only one call to random per bind as well. - fixes so set_peer_primary pre-screens addresses to be valid to this host. - maxseg did not allow setting on an assoc basis. We needed to thus track and use an association value instead of a inp value. - Fixed ep get of HB status to report back properly. - use settings flag to tell if assoc level hb is on off not the timer.. since the timer may still run if unconf address are present. - check for crazy ENABLE/DISABLE conditions. - set and get of pmtud (fixed path mtu) not always taking into account ovh. - Getting PMTU info on stcb only needs to return PMTUD_ENABLED if any net is doing PMTU discovery. - Panic or warning fixed to not do so when a valid ip frag is taking place. - sndrcvinfo appearing in both inp and stcb was full size, instead of the non-pad version. This saves about 92 bytes from each struct by carefully converting to use the smaller version. - one-2-one model get(maxseg) would always get ep value, never the tcb's value. - The delayed ack time could be under a tick, this fixes so it bounds it to at least 1 tick for platforms whos tick is more than a ms. - Fragment interleave level set to wrong default value. - Fragment interleave could not set level 0. - Defered stream reset was broken due to a guard check and ntohl issue. - Found two lock order reversals and fixed. - Tighten up address checking, if the user gives an address the sa_len had better be set properly. - Get asoc by assoc-id would return a locked tcb when it was asked not to if the tcb was in the restart hash. - sysctl to dig down and get more association details Reviewed by: gnn
404 lines
12 KiB
C
404 lines
12 KiB
C
/*-
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* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* $KAME: sctputil.h,v 1.15 2005/03/06 16:04:19 itojun Exp $ */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef __sctputil_h__
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#define __sctputil_h__
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#if defined(_KERNEL)
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/*-
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* Any new logging added must also define SCTP_STAT_LOGGING if
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* its not already defined.
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*/
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#if defined(SCTP_LOG_MAXBURST) || defined(SCTP_LOG_RWND) || defined(SCTP_LOG_RWND)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_CWND_LOGGING) || defined(SCTP_CWND_MONITOR) || defined(SCTP_BLK_LOGGING)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_STR_LOGGING) || defined(SCTP_FR_LOGGING) || defined(SCTP_MAP_LOGGING)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_SACK_LOGGING) || defined(SCTP_LOCK_LOGGING) || defined(SCTP_STAT_LOGGING)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_RTTVAR_LOGGING) || defined(SCTP_SB_LOGGING) || defined(SCTP_EARLYFR_LOGGING)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_NAGLE_LOGGING) || defined(SCTP_WAKE_LOGGING) || defined(SCTP_RECV_RWND_LOGGING)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_SACK_RWND_LOGGING) || defined(SCTP_FLIGHT_LOGGING) || defined(SCTP_MBUF_LOGGING)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#if defined(SCTP_LOG_SACK_ARRIVALS)
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#ifndef SCTP_STAT_LOGGING
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#define SCTP_STAT_LOGGING 1
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#endif
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#endif
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#ifdef SCTP_ASOCLOG_OF_TSNS
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void sctp_print_out_track_log(struct sctp_tcb *stcb);
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#endif
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#ifdef SCTP_MBUF_LOGGING
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struct mbuf *sctp_m_free(struct mbuf *m);
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void sctp_m_freem(struct mbuf *m);
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#else
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#define sctp_m_free m_free
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#define sctp_m_freem m_freem
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#endif
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#define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
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/*
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* Function prototypes
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*/
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uint32_t
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sctp_get_ifa_hash_val(struct sockaddr *addr);
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struct sctp_ifa *
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sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, int hold_lock);
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struct sctp_ifa *
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sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock);
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uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
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uint32_t sctp_select_a_tag(struct sctp_inpcb *);
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int sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t, uint32_t);
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void sctp_fill_random_store(struct sctp_pcb *);
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void
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sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
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struct sctp_nets *);
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void
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sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
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struct sctp_nets *, uint32_t);
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int
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sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id);
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uint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t);
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void
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sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t);
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void
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sctp_add_to_readq(struct sctp_inpcb *inp,
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struct sctp_tcb *stcb,
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struct sctp_queued_to_read *control,
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struct sockbuf *sb,
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int end);
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int
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sctp_append_to_readq(struct sctp_inpcb *inp,
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struct sctp_tcb *stcb,
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struct sctp_queued_to_read *control,
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struct mbuf *m,
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int end,
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int new_cumack,
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struct sockbuf *sb);
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void sctp_iterator_worker(void);
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int find_next_best_mtu(int);
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void
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sctp_timeout_handler(void *);
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uint32_t
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sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
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struct sctp_nets *, struct timeval *);
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uint32_t sctp_calculate_len(struct mbuf *);
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caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
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struct sctp_paramhdr *
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sctp_get_next_param(struct mbuf *, int,
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struct sctp_paramhdr *, int);
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int sctp_add_pad_tombuf(struct mbuf *, int);
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int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
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void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *);
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void
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sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
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struct sctp_inpcb *new_inp,
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struct sctp_tcb *stcb, int waitflags);
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void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
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void sctp_report_all_outbound(struct sctp_tcb *, int);
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int sctp_expand_mapping_array(struct sctp_association *);
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void sctp_abort_notification(struct sctp_tcb *, int);
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/* We abort responding to an IP packet for some reason */
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void
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sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *,
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struct mbuf *, int, struct sctphdr *, struct mbuf *, uint32_t, uint32_t);
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/* We choose to abort via user input */
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void
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sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int,
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struct mbuf *);
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void
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sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
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struct sctp_inpcb *, struct mbuf *, uint32_t, uint32_t);
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int
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sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr,
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int totaddr, int *error);
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struct sctp_tcb *
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sctp_connectx_helper_find(struct sctp_inpcb *inp, struct sockaddr *addr,
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int *totaddr, int *num_v4, int *num_v6, int *error, int limit, int *bad_addr);
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int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
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uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
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struct sockaddr_in6 *
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sctp_recover_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
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#define sctp_recover_scope_mac(addr, store) do { \
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if ((addr->sin6_family == AF_INET6) && \
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(IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr))) { \
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*store = *addr; \
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if (addr->sin6_scope_id == 0) { \
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if (!sa6_recoverscope(store)) { \
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addr = store; \
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} \
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} else { \
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in6_clearscope(&addr->sin6_addr); \
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addr = store; \
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} \
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} \
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} while (0)
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int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
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void sctp_print_address(struct sockaddr *);
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void sctp_print_address_pkt(struct ip *, struct sctphdr *);
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void
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sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb,
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uint32_t error, int no_lock, uint32_t strseq);
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int
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sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
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int, struct sctpchunk_listhead *);
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struct mbuf *sctp_generate_invmanparam(int);
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#ifdef SCTP_MBCNT_LOGGING
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void
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sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
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struct sctp_tmit_chunk *);
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#else
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#define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
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do { \
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if (tp1->data != NULL) { \
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atomic_subtract_int(&((asoc)->chunks_on_out_queue), chk_cnt); \
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if ((asoc)->total_output_queue_size >= tp1->book_size) { \
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atomic_subtract_int(&((asoc)->total_output_queue_size), tp1->book_size); \
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} else { \
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(asoc)->total_output_queue_size = 0; \
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} \
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if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
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(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
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if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
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atomic_subtract_int(&((stcb)->sctp_socket->so_snd.sb_cc), tp1->book_size); \
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} else { \
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stcb->sctp_socket->so_snd.sb_cc = 0; \
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} \
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} \
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} \
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} while (0)
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#endif
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#define sctp_free_spbufspace(stcb, asoc, sp) \
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do { \
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if (sp->data != NULL) { \
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atomic_subtract_int(&(asoc)->chunks_on_out_queue, 1); \
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if ((asoc)->total_output_queue_size >= sp->length) { \
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atomic_subtract_int(&(asoc)->total_output_queue_size, sp->length); \
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} else { \
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(asoc)->total_output_queue_size = 0; \
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} \
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if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
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(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
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if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
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atomic_subtract_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
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} else { \
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stcb->sctp_socket->so_snd.sb_cc = 0; \
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} \
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} \
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} \
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} while (0)
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#define sctp_snd_sb_alloc(stcb, sz) \
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do { \
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atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
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if ((stcb->sctp_socket != NULL) && \
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((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
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(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
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atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
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} \
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} while (0)
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int
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sctp_soreceive(struct socket *so, struct sockaddr **psa,
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struct uio *uio,
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struct mbuf **mp0,
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struct mbuf **controlp,
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int *flagsp);
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/* For those not passing mbufs, this does the
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* translations for you. Caller owns memory
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* of size controllen returned in controlp.
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*/
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int
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sctp_l_soreceive(struct socket *so,
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struct sockaddr **name,
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struct uio *uio,
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char **controlp,
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int *controllen,
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int *flag);
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#ifdef SCTP_STAT_LOGGING
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void
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sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
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void
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sctp_wakeup_log(struct sctp_tcb *stcb,
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uint32_t cumtsn,
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uint32_t wake_cnt, int from);
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void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
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void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
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void
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sctp_log_mb(struct mbuf *m, int from);
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void
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sctp_sblog(struct sockbuf *sb,
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struct sctp_tcb *stcb, int from, int incr);
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void
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sctp_log_strm_del(struct sctp_queued_to_read *control,
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struct sctp_queued_to_read *poschk,
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int from);
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void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
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void rto_logging(struct sctp_nets *net, int from);
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void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
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void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
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void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
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void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int);
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void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
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void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
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void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
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int sctp_fill_stat_log(void *, size_t *);
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void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
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void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
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void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
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void sctp_clr_stat_log(void);
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#endif
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#ifdef SCTP_AUDITING_ENABLED
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void
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sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
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struct sctp_nets *);
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void sctp_audit_log(uint8_t, uint8_t);
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#endif
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#endif /* _KERNEL */
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#endif
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