1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * a) Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 14 * b) Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the distribution. 17 * 18 * c) Neither the name of Cisco Systems, Inc. nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #ifndef _NETINET_SCTP_OUTPUT_H_ 39 #define _NETINET_SCTP_OUTPUT_H_ 40 41 #include <netinet/sctp_header.h> 42 43 #if defined(_KERNEL) || defined(__Userspace__) 44 45 46 struct mbuf * 47 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp, 48 struct sctp_tcb *stcb, 49 struct sctp_scoping *scope, 50 struct mbuf *m_at, 51 int cnt_inits_to, 52 uint16_t *padding_len, uint16_t *chunk_len); 53 54 55 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 56 57 58 int 59 sctp_is_address_in_scope(struct sctp_ifa *ifa, 60 struct sctp_scoping *scope, 61 int do_update); 62 63 int 64 sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa); 65 66 struct sctp_ifa * 67 sctp_source_address_selection(struct sctp_inpcb *inp, 68 struct sctp_tcb *stcb, 69 sctp_route_t *ro, struct sctp_nets *net, 70 int non_asoc_addr_ok, uint32_t vrf_id); 71 72 int 73 sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro); 74 int 75 sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro); 76 77 void 78 sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int 79 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) 80 SCTP_UNUSED 81 #endif 82 ); 83 84 void 85 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 86 struct sctp_nets *, struct mbuf *, 87 int, int, 88 struct sockaddr *, struct sockaddr *, 89 struct sctphdr *, struct sctp_init_chunk *, 90 uint8_t, uint32_t, 91 uint32_t, uint16_t); 92 93 struct mbuf * 94 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 95 struct sctp_chunkhdr *, int *, int *); 96 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 97 98 int 99 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 100 struct sctp_nets *); 101 102 void sctp_send_cookie_ack(struct sctp_tcb *); 103 104 void 105 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 106 struct sctp_nets *); 107 108 void 109 sctp_remove_from_wheel(struct sctp_tcb *stcb, 110 struct sctp_association *asoc, 111 struct sctp_stream_out *strq, int holds_lock); 112 113 114 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 115 116 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 117 118 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 119 120 void 121 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 122 struct sctphdr *, 123 uint8_t, uint32_t, uint16_t, 124 uint32_t, uint16_t); 125 126 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 127 128 void sctp_send_asconf_ack(struct sctp_tcb *); 129 130 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *); 131 132 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 133 134 void sctp_toss_old_asconf(struct sctp_tcb *); 135 136 void sctp_fix_ecn_echo(struct sctp_association *); 137 138 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 139 140 141 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 142 sizeof(struct sctp_idata_chunk) : \ 143 sizeof(struct sctp_data_chunk)) 144 145 int 146 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 147 struct mbuf *, struct thread *, int); 148 149 void 150 sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int 151 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) 152 SCTP_UNUSED 153 #endif 154 ); 155 void 156 sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int 157 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) 158 SCTP_UNUSED 159 #endif 160 ); 161 162 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 163 164 void sctp_send_sack(struct sctp_tcb *, int); 165 166 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 167 168 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 169 170 171 void 172 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 173 int, int, int); 174 175 176 177 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 178 179 180 void 181 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 182 183 void 184 sctp_send_deferred_reset_response(struct sctp_tcb *, 185 struct sctp_stream_reset_list *, 186 int); 187 188 void 189 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 190 uint32_t, uint32_t, uint32_t, uint32_t); 191 int 192 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 193 194 int 195 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *, 196 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 197 198 void 199 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 200 struct sctphdr *, uint32_t, struct mbuf *, 201 uint8_t, uint32_t, uint16_t, 202 uint32_t, uint16_t); 203 204 void 205 sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 206 struct sctphdr *, uint32_t, struct mbuf *, 207 uint8_t, uint32_t, uint16_t, 208 uint32_t, uint16_t); 209 210 #endif /* _KERNEL || __Userspace__ */ 211 212 #if defined(_KERNEL) || defined(__Userspace__) 213 int 214 sctp_sosend(struct socket *so, 215 struct sockaddr *addr, 216 struct uio *uio, 217 struct mbuf *top, 218 struct mbuf *control, 219 int flags, 220 struct thread *p 221 ); 222 223 #endif 224 #endif 225