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 struct mbuf * 46 sctp_add_addresses_to_i_ia(struct sctp_inpcb *inp, 47 struct sctp_tcb *stcb, 48 struct sctp_scoping *scope, 49 struct mbuf *m_at, 50 int cnt_inits_to, 51 uint16_t *padding_len, uint16_t *chunk_len); 52 53 int sctp_is_addr_restricted(struct sctp_tcb *, struct sctp_ifa *); 54 55 int 56 sctp_is_address_in_scope(struct sctp_ifa *ifa, 57 struct sctp_scoping *scope, 58 int do_update); 59 60 int 61 sctp_is_addr_in_ep(struct sctp_inpcb *inp, struct sctp_ifa *ifa); 62 63 struct sctp_ifa * 64 sctp_source_address_selection(struct sctp_inpcb *inp, 65 struct sctp_tcb *stcb, 66 sctp_route_t *ro, struct sctp_nets *net, 67 int non_asoc_addr_ok, uint32_t vrf_id); 68 69 int 70 sctp_v6src_match_nexthop(struct sockaddr_in6 *src6, sctp_route_t *ro); 71 int 72 sctp_v4src_match_nexthop(struct sctp_ifa *sifa, sctp_route_t *ro); 73 74 void sctp_send_initiate(struct sctp_inpcb *, struct sctp_tcb *, int); 75 76 void 77 sctp_send_initiate_ack(struct sctp_inpcb *, struct sctp_tcb *, 78 struct sctp_nets *, struct mbuf *, 79 int, int, 80 struct sockaddr *, struct sockaddr *, 81 struct sctphdr *, struct sctp_init_chunk *, 82 uint8_t, uint32_t, 83 uint32_t, uint16_t); 84 85 struct mbuf * 86 sctp_arethere_unrecognized_parameters(struct mbuf *, int, int *, 87 struct sctp_chunkhdr *, int *, int *); 88 void sctp_queue_op_err(struct sctp_tcb *, struct mbuf *); 89 90 int 91 sctp_send_cookie_echo(struct mbuf *, int, int, struct sctp_tcb *, 92 struct sctp_nets *); 93 94 void sctp_send_cookie_ack(struct sctp_tcb *); 95 96 void 97 sctp_send_heartbeat_ack(struct sctp_tcb *, struct mbuf *, int, int, 98 struct sctp_nets *); 99 100 void 101 sctp_remove_from_wheel(struct sctp_tcb *stcb, 102 struct sctp_association *asoc, 103 struct sctp_stream_out *strq, int holds_lock); 104 105 void sctp_send_shutdown(struct sctp_tcb *, struct sctp_nets *); 106 107 void sctp_send_shutdown_ack(struct sctp_tcb *, struct sctp_nets *); 108 109 void sctp_send_shutdown_complete(struct sctp_tcb *, struct sctp_nets *, int); 110 111 void 112 sctp_send_shutdown_complete2(struct sockaddr *, struct sockaddr *, 113 struct sctphdr *, 114 uint8_t, uint32_t, uint16_t, 115 uint32_t, uint16_t); 116 117 void sctp_send_asconf(struct sctp_tcb *, struct sctp_nets *, int addr_locked); 118 119 void sctp_send_asconf_ack(struct sctp_tcb *); 120 121 int sctp_get_frag_point(struct sctp_tcb *, struct sctp_association *); 122 123 void sctp_toss_old_cookies(struct sctp_tcb *, struct sctp_association *); 124 125 void sctp_toss_old_asconf(struct sctp_tcb *); 126 127 void sctp_fix_ecn_echo(struct sctp_association *); 128 129 void sctp_move_chunks_from_net(struct sctp_tcb *stcb, struct sctp_nets *net); 130 131 #define SCTP_DATA_CHUNK_OVERHEAD(stcb) ((stcb)->asoc.idata_supported ? \ 132 sizeof(struct sctp_idata_chunk) : \ 133 sizeof(struct sctp_data_chunk)) 134 135 int 136 sctp_output(struct sctp_inpcb *, struct mbuf *, struct sockaddr *, 137 struct mbuf *, struct thread *, int); 138 139 void sctp_chunk_output(struct sctp_inpcb *, struct sctp_tcb *, int, int); 140 141 void sctp_send_abort_tcb(struct sctp_tcb *, struct mbuf *, int); 142 143 void send_forward_tsn(struct sctp_tcb *, struct sctp_association *); 144 145 void sctp_send_sack(struct sctp_tcb *, int); 146 147 void sctp_send_hb(struct sctp_tcb *, struct sctp_nets *, int); 148 149 void sctp_send_ecn_echo(struct sctp_tcb *, struct sctp_nets *, uint32_t); 150 151 void 152 sctp_send_packet_dropped(struct sctp_tcb *, struct sctp_nets *, struct mbuf *, 153 int, int, int); 154 155 void sctp_send_cwr(struct sctp_tcb *, struct sctp_nets *, uint32_t, uint8_t); 156 157 void 158 sctp_add_stream_reset_result(struct sctp_tmit_chunk *, uint32_t, uint32_t); 159 160 void 161 sctp_send_deferred_reset_response(struct sctp_tcb *, 162 struct sctp_stream_reset_list *, 163 int); 164 165 void 166 sctp_add_stream_reset_result_tsn(struct sctp_tmit_chunk *, 167 uint32_t, uint32_t, uint32_t, uint32_t); 168 int 169 sctp_send_stream_reset_out_if_possible(struct sctp_tcb *, int); 170 171 int 172 sctp_send_str_reset_req(struct sctp_tcb *, uint16_t, uint16_t *, 173 uint8_t, uint8_t, uint8_t, uint16_t, uint16_t, uint8_t); 174 175 void 176 sctp_send_abort(struct mbuf *, int, struct sockaddr *, struct sockaddr *, 177 struct sctphdr *, uint32_t, struct mbuf *, 178 uint8_t, uint32_t, uint16_t, 179 uint32_t, uint16_t); 180 181 void 182 sctp_send_operr_to(struct sockaddr *, struct sockaddr *, 183 struct sctphdr *, uint32_t, struct mbuf *, 184 uint8_t, uint32_t, uint16_t, 185 uint32_t, uint16_t); 186 187 #endif /* _KERNEL || __Userspace__ */ 188 189 #if defined(_KERNEL) || defined(__Userspace__) 190 int 191 sctp_sosend(struct socket *so, 192 struct sockaddr *addr, 193 struct uio *uio, 194 struct mbuf *top, 195 struct mbuf *control, 196 int flags, 197 struct thread *p 198 ); 199 200 #endif 201 #endif 202