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: stable/12/sys/netinet/sctp_output.h 366323 2020-10-01 16:22:34Z tuexen $"); 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 sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro); 73 74 int sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro); 75 76 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int); 77 78 void 79 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 80 struct sctp_nets *, struct mbuf *, 81 int, int, 82 struct sockaddr *, struct sockaddr *, 83 struct sctphdr *, struct sctp_init_chunk *, 84 uint8_t, uint32_t, 85 uint32_t, uint16_t); 86 87 struct mbuf * 88 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 89 struct sctp_chunkhdr *, int *, int *); 90 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 91 92 int 93 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 94 struct sctp_nets *); 95 96 void sctp_send_cookie_ack(struct sctp_tcb *); 97 98 void 99 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 100 struct sctp_nets *); 101 102 void 103 sctp_remove_from_wheel(struct sctp_tcb *stcb, 104 struct sctp_association *asoc, 105 struct sctp_stream_out *strq, int holds_lock); 106 107 108 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 109 110 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 111 112 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 113 114 void 115 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 116 struct sctphdr *, 117 uint8_t, uint32_t, uint16_t, 118 uint32_t, uint16_t); 119 120 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 121 122 void sctp_send_asconf_ack(struct sctp_tcb *); 123 124 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *); 125 126 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 127 128 void sctp_toss_old_asconf(struct sctp_tcb *); 129 130 void sctp_fix_ecn_echo(struct sctp_association *); 131 132 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 133 134 135 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 136 sizeof(struct sctp_idata_chunk) : \ 137 sizeof(struct sctp_data_chunk)) 138 139 int 140 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 141 struct mbuf *, struct thread *, int); 142 143 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int); 144 145 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int); 146 147 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 148 149 void sctp_send_sack(struct sctp_tcb *, int); 150 151 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 152 153 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 154 155 void 156 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 157 int, int, int); 158 159 160 161 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 162 163 164 void 165 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 166 167 void 168 sctp_send_deferred_reset_response(struct sctp_tcb *, 169 struct sctp_stream_reset_list *, 170 int); 171 172 void 173 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 174 uint32_t, uint32_t, uint32_t, uint32_t); 175 int 176 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 177 178 int 179 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *, 180 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 181 182 void 183 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 184 struct sctphdr *, uint32_t, struct mbuf *, 185 uint8_t, uint32_t, uint16_t, 186 uint32_t, uint16_t); 187 188 void 189 sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 190 struct sctphdr *, uint32_t, struct mbuf *, 191 uint8_t, uint32_t, uint16_t, 192 uint32_t, uint16_t); 193 194 #endif /* _KERNEL || __Userspace__ */ 195 196 #if defined(_KERNEL) || defined(__Userspace__) 197 int 198 sctp_sosend(struct socket *so, 199 struct sockaddr *addr, 200 struct uio *uio, 201 struct mbuf *top, 202 struct mbuf *control, 203 int flags, 204 struct thread *p 205 ); 206 207 #endif 208 #endif 209