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 #ifndef _NETINET_SCTP_OUTPUT_H_ 36 #define _NETINET_SCTP_OUTPUT_H_ 37 38 #include <netinet/sctp_header.h> 39 40 #if defined(_KERNEL) || defined(__Userspace__) 41 42 struct mbuf * 43 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp, 44 struct sctp_tcb *stcb, 45 struct sctp_scoping *scope, 46 struct mbuf *m_at, 47 int cnt_inits_to, 48 uint16_t *padding_len, uint16_t *chunk_len); 49 50 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 51 52 int 53 sctp_is_address_in_scope(struct sctp_ifa *ifa, 54 struct sctp_scoping *scope, 55 int do_update); 56 57 int 58 sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa); 59 60 struct sctp_ifa * 61 sctp_source_address_selection(struct sctp_inpcb *inp, 62 struct sctp_tcb *stcb, 63 sctp_route_t *ro, struct sctp_nets *net, 64 int non_asoc_addr_ok, uint32_t vrf_id); 65 66 int sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro); 67 68 int sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro); 69 70 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int); 71 72 void 73 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 74 struct sctp_nets *, struct mbuf *, 75 int, int, 76 struct sockaddr *, struct sockaddr *, 77 struct sctphdr *, struct sctp_init_chunk *, 78 uint8_t, uint32_t, 79 uint32_t, uint16_t); 80 81 struct mbuf * 82 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 83 struct sctp_chunkhdr *, int *, int *, 84 uint32_t *); 85 86 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 87 88 int 89 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 90 struct sctp_nets *); 91 92 void sctp_send_cookie_ack(struct sctp_tcb *); 93 94 void 95 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 96 struct sctp_nets *); 97 98 void 99 sctp_remove_from_wheel(struct sctp_tcb *stcb, 100 struct sctp_association *asoc, 101 struct sctp_stream_out *strq, int holds_lock); 102 103 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 104 105 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 106 107 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 108 109 void 110 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 111 struct sctphdr *, 112 uint8_t, uint32_t, uint16_t, 113 uint32_t, uint16_t); 114 115 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 116 117 void sctp_send_asconf_ack(struct sctp_tcb *); 118 119 uint32_t sctp_get_frag_point(struct sctp_tcb *); 120 121 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 122 123 void sctp_toss_old_asconf(struct sctp_tcb *); 124 125 void sctp_fix_ecn_echo(struct sctp_association *); 126 127 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 128 129 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 130 sizeof(struct sctp_idata_chunk) : \ 131 sizeof(struct sctp_data_chunk)) 132 133 int 134 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 135 struct mbuf *, struct thread *, int); 136 137 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int); 138 139 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int); 140 141 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 142 143 void sctp_send_sack(struct sctp_tcb *, int); 144 145 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 146 147 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 148 149 void 150 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 151 int, int, int); 152 153 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 154 155 void 156 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 157 158 void 159 sctp_send_deferred_reset_response(struct sctp_tcb *, 160 struct sctp_stream_reset_list *, 161 int); 162 163 void 164 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 165 uint32_t, uint32_t, uint32_t, uint32_t); 166 int 167 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 168 169 int 170 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *, 171 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 172 173 void 174 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 175 struct sctphdr *, uint32_t, struct mbuf *, 176 uint8_t, uint32_t, uint16_t, 177 uint32_t, uint16_t); 178 179 void 180 sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 181 struct sctphdr *, uint32_t, struct mbuf *, 182 uint8_t, uint32_t, uint16_t, 183 uint32_t, uint16_t); 184 185 #endif /* _KERNEL || __Userspace__ */ 186 187 #if defined(_KERNEL) || defined(__Userspace__) 188 int 189 sctp_sosend(struct socket *so, 190 struct sockaddr *addr, 191 struct uio *uio, 192 struct mbuf *top, 193 struct mbuf *control, 194 int flags, 195 struct thread *p 196 ); 197 198 #endif 199 #endif 200