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 #if defined(__FreeBSD__) && !defined(__Userspace__) 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD: head/sys/netinet/sctp_output.h 362054 2020-06-11 13:34:09Z tuexen $"); 38 #endif 39 40 #ifndef _NETINET_SCTP_OUTPUT_H_ 41 #define _NETINET_SCTP_OUTPUT_H_ 42 43 #include <netinet/sctp_header.h> 44 45 #if defined(_KERNEL) || defined(__Userspace__) 46 47 48 struct mbuf * 49 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp, 50 struct sctp_tcb *stcb, 51 struct sctp_scoping *scope, 52 struct mbuf *m_at, 53 int cnt_inits_to, 54 uint16_t *padding_len, uint16_t *chunk_len); 55 56 57 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 58 59 60 int 61 sctp_is_address_in_scope(struct sctp_ifa *ifa, 62 struct sctp_scoping *scope, 63 int do_update); 64 65 int 66 sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa); 67 68 struct sctp_ifa * 69 sctp_source_address_selection(struct sctp_inpcb *inp, 70 struct sctp_tcb *stcb, 71 sctp_route_t *ro, struct sctp_nets *net, 72 int non_asoc_addr_ok, uint32_t vrf_id); 73 74 #if defined(__FreeBSD__) || defined(__APPLE__) || defined(__Userspace__) 75 int 76 sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro); 77 int 78 sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro); 79 #endif 80 81 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int); 82 83 void 84 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 85 struct sctp_nets *, struct mbuf *, 86 int, int, 87 struct sockaddr *, struct sockaddr *, 88 struct sctphdr *, struct sctp_init_chunk *, 89 #if defined(__FreeBSD__) && !defined(__Userspace__) 90 uint8_t, uint32_t, 91 #endif 92 uint32_t, uint16_t); 93 94 struct mbuf * 95 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 96 struct sctp_chunkhdr *, int *, int *); 97 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 98 99 int 100 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 101 struct sctp_nets *); 102 103 void sctp_send_cookie_ack(struct sctp_tcb *); 104 105 void 106 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 107 struct sctp_nets *); 108 109 void 110 sctp_remove_from_wheel(struct sctp_tcb *stcb, 111 struct sctp_association *asoc, 112 struct sctp_stream_out *strq, int holds_lock); 113 114 115 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 116 117 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 118 119 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 120 121 void sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 122 struct sctphdr *, 123 #if defined(__FreeBSD__) && !defined(__Userspace__) 124 uint8_t, uint32_t, uint16_t, 125 #endif 126 uint32_t, uint16_t); 127 128 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 129 130 void sctp_send_asconf_ack(struct sctp_tcb *); 131 132 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *); 133 134 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 135 136 void sctp_toss_old_asconf(struct sctp_tcb *); 137 138 void sctp_fix_ecn_echo(struct sctp_association *); 139 140 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 141 142 143 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 144 sizeof(struct sctp_idata_chunk) : \ 145 sizeof(struct sctp_data_chunk)) 146 147 #if defined(__FreeBSD__) && !defined(__Userspace__) 148 int 149 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 150 struct mbuf *, struct thread *, int); 151 #elif defined(_WIN32) && !defined(__Userspace__) 152 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 153 struct mbuf *, PKTHREAD, int); 154 #else 155 #if defined(__Userspace__) 156 /* sctp_output is called bu sctp_sendm. Not using sctp_sendm for __Userspace__ */ 157 #endif 158 int 159 sctp_output(struct sctp_inpcb *, 160 struct mbuf *, 161 struct sockaddr *, 162 struct mbuf *, 163 struct proc *, int); 164 #endif 165 166 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int); 167 168 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int); 169 170 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 171 172 void sctp_send_sack(struct sctp_tcb *, int); 173 174 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 175 176 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 177 178 void 179 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 180 int, int, int); 181 182 183 184 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 185 186 187 void 188 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 189 190 void 191 sctp_send_deferred_reset_response(struct sctp_tcb *, 192 struct sctp_stream_reset_list *, 193 int); 194 195 void 196 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 197 uint32_t, uint32_t, uint32_t, uint32_t); 198 int 199 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 200 201 int 202 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t , uint16_t *, 203 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 204 205 void 206 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 207 struct sctphdr *, uint32_t, struct mbuf *, 208 #if defined(__FreeBSD__) && !defined(__Userspace__) 209 uint8_t, uint32_t, uint16_t, 210 #endif 211 uint32_t, uint16_t); 212 213 void sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 214 struct sctphdr *, uint32_t, struct mbuf *, 215 #if defined(__FreeBSD__) && !defined(__Userspace__) 216 uint8_t, uint32_t, uint16_t, 217 #endif 218 uint32_t, uint16_t); 219 220 #endif /* _KERNEL || __Userspace__ */ 221 222 #if defined(_KERNEL) || defined(__Userspace__) 223 int 224 sctp_sosend(struct socket *so, 225 struct sockaddr *addr, 226 struct uio *uio, 227 struct mbuf *top, 228 struct mbuf *control, 229 #if defined(__APPLE__) && !defined(__Userspace__) 230 int flags 231 #else 232 int flags, 233 #if defined(__FreeBSD__) && !defined(__Userspace__) 234 struct thread *p 235 #elif defined(_WIN32) && !defined(__Userspace__) 236 PKTHREAD p 237 #else 238 #if defined(__Userspace__) 239 /* proc is a dummy in __Userspace__ and will not be passed to sctp_lower_sosend */ 240 #endif 241 struct proc *p 242 #endif 243 #endif 244 ); 245 246 #endif 247 #endif 248 249