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 #ifdef __FreeBSD__ 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD: head/sys/netinet/sctp_output.h 351654 2019-09-01 10:09:53Z 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 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) 83 SCTP_UNUSED 84 #endif 85 ); 86 87 void 88 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 89 struct sctp_nets *, struct mbuf *, 90 int, int, 91 struct sockaddr *, struct sockaddr *, 92 struct sctphdr *, struct sctp_init_chunk *, 93 #if defined(__FreeBSD__) 94 uint8_t, uint32_t, 95 #endif 96 uint32_t, uint16_t); 97 98 struct mbuf * 99 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 100 struct sctp_chunkhdr *, int *, int *); 101 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 102 103 int 104 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 105 struct sctp_nets *); 106 107 void sctp_send_cookie_ack(struct sctp_tcb *); 108 109 void 110 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 111 struct sctp_nets *); 112 113 void 114 sctp_remove_from_wheel(struct sctp_tcb *stcb, 115 struct sctp_association *asoc, 116 struct sctp_stream_out *strq, int holds_lock); 117 118 119 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 120 121 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 122 123 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 124 125 void sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 126 struct sctphdr *, 127 #if defined(__FreeBSD__) 128 uint8_t, uint32_t, uint16_t, 129 #endif 130 uint32_t, uint16_t); 131 132 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 133 134 void sctp_send_asconf_ack(struct sctp_tcb *); 135 136 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *); 137 138 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 139 140 void sctp_toss_old_asconf(struct sctp_tcb *); 141 142 void sctp_fix_ecn_echo(struct sctp_association *); 143 144 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 145 146 147 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 148 sizeof(struct sctp_idata_chunk) : \ 149 sizeof(struct sctp_data_chunk)) 150 151 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 152 int 153 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 154 struct mbuf *, struct thread *, int); 155 #elif defined(__Windows__) 156 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 157 struct mbuf *, PKTHREAD, int); 158 #else 159 #if defined(__Userspace__) 160 /* sctp_output is called bu sctp_sendm. Not using sctp_sendm for __Userspace__ */ 161 #endif 162 int 163 sctp_output(struct sctp_inpcb *, 164 #if defined(__Panda__) 165 pakhandle_type, 166 #else 167 struct mbuf *, 168 #endif 169 struct sockaddr *, 170 #if defined(__Panda__) 171 pakhandle_type, 172 #else 173 struct mbuf *, 174 #endif 175 struct proc *, int); 176 #endif 177 178 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int 179 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) 180 SCTP_UNUSED 181 #endif 182 ); 183 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int 184 #if !defined(__APPLE__) && !defined(SCTP_SO_LOCK_TESTING) 185 SCTP_UNUSED 186 #endif 187 ); 188 189 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 190 191 void sctp_send_sack(struct sctp_tcb *, int); 192 193 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 194 195 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 196 197 198 void 199 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 200 int, int, int); 201 202 203 204 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 205 206 207 void 208 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 209 210 void 211 sctp_send_deferred_reset_response(struct sctp_tcb *, 212 struct sctp_stream_reset_list *, 213 int); 214 215 void 216 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 217 uint32_t, uint32_t, uint32_t, uint32_t); 218 int 219 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 220 221 int 222 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t , uint16_t *, 223 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 224 225 void 226 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 227 struct sctphdr *, uint32_t, struct mbuf *, 228 #if defined(__FreeBSD__) 229 uint8_t, uint32_t, uint16_t, 230 #endif 231 uint32_t, uint16_t); 232 233 void sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 234 struct sctphdr *, uint32_t, struct mbuf *, 235 #if defined(__FreeBSD__) 236 uint8_t, uint32_t, uint16_t, 237 #endif 238 uint32_t, uint16_t); 239 240 #endif /* _KERNEL || __Userspace__ */ 241 242 #if defined(_KERNEL) || defined(__Userspace__) 243 int 244 sctp_sosend(struct socket *so, 245 struct sockaddr *addr, 246 struct uio *uio, 247 #ifdef __Panda__ 248 pakhandle_type top, 249 pakhandle_type control, 250 #else 251 struct mbuf *top, 252 struct mbuf *control, 253 #endif 254 #if defined(__APPLE__) || defined(__Panda__) 255 int flags 256 #else 257 int flags, 258 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 259 struct thread *p 260 #elif defined(__Windows__) 261 PKTHREAD p 262 #else 263 #if defined(__Userspace__) 264 /* proc is a dummy in __Userspace__ and will not be passed to sctp_lower_sosend */ 265 #endif 266 struct proc *p 267 #endif 268 #endif 269 ); 270 271 #endif 272 #endif 273 274