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 sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int); 78 79 void 80 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 81 struct sctp_nets *, struct mbuf *, 82 int, int, 83 struct sockaddr *, struct sockaddr *, 84 struct sctphdr *, struct sctp_init_chunk *, 85 uint8_t, uint32_t, 86 uint32_t, uint16_t); 87 88 struct mbuf * 89 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 90 struct sctp_chunkhdr *, int *, int *); 91 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 92 93 int 94 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 95 struct sctp_nets *); 96 97 void sctp_send_cookie_ack(struct sctp_tcb *); 98 99 void 100 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 101 struct sctp_nets *); 102 103 void 104 sctp_remove_from_wheel(struct sctp_tcb *stcb, 105 struct sctp_association *asoc, 106 struct sctp_stream_out *strq, int holds_lock); 107 108 109 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 110 111 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 112 113 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 114 115 void 116 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 117 struct sctphdr *, 118 uint8_t, uint32_t, uint16_t, 119 uint32_t, uint16_t); 120 121 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 122 123 void sctp_send_asconf_ack(struct sctp_tcb *); 124 125 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *); 126 127 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 128 129 void sctp_toss_old_asconf(struct sctp_tcb *); 130 131 void sctp_fix_ecn_echo(struct sctp_association *); 132 133 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 134 135 136 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 137 sizeof(struct sctp_idata_chunk) : \ 138 sizeof(struct sctp_data_chunk)) 139 140 int 141 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 142 struct mbuf *, struct thread *, int); 143 144 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int); 145 146 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int); 147 148 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 149 150 void sctp_send_sack(struct sctp_tcb *, int); 151 152 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 153 154 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 155 156 void 157 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 158 int, int, int); 159 160 161 162 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 163 164 165 void 166 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 167 168 void 169 sctp_send_deferred_reset_response(struct sctp_tcb *, 170 struct sctp_stream_reset_list *, 171 int); 172 173 void 174 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 175 uint32_t, uint32_t, uint32_t, uint32_t); 176 int 177 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 178 179 int 180 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *, 181 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 182 183 void 184 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 185 struct sctphdr *, uint32_t, struct mbuf *, 186 uint8_t, uint32_t, uint16_t, 187 uint32_t, uint16_t); 188 189 void 190 sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 191 struct sctphdr *, uint32_t, struct mbuf *, 192 uint8_t, uint32_t, uint16_t, 193 uint32_t, uint16_t); 194 195 #endif /* _KERNEL || __Userspace__ */ 196 197 #if defined(_KERNEL) || defined(__Userspace__) 198 int 199 sctp_sosend(struct socket *so, 200 struct sockaddr *addr, 201 struct uio *uio, 202 struct mbuf *top, 203 struct mbuf *control, 204 int flags, 205 struct thread *p 206 ); 207 208 #endif 209 #endif 210