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