sctputil.h revision 1.5
1 /* $KAME: sctputil.h,v 1.15 2005/03/06 16:04:19 itojun Exp $ */ 2 /* $NetBSD: sctputil.h,v 1.5 2024/07/05 04:26:50 rin Exp $ */ 3 4 #ifndef __SCTPUTIL_H__ 5 #define __SCTPUTIL_H__ 6 7 /* 8 * Copyright (C) 2002, 2003, 2004 Cisco Systems Inc, 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the project nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #if defined(_KERNEL) 37 38 #ifdef SCTP_MBUF_DEBUG 39 #define sctp_m_freem(m) do { \ 40 struct mbuf *_m = (m); 41 printf("m_freem(%p) m->nxtpkt:%p at %s[%d]\n", \ 42 _m, _m != NULL ? _m->m_next : NULL, __FILE__, __LINE__); \ 43 m_freem(_m); \ 44 } while (0); 45 #else 46 #define sctp_m_freem m_freem 47 #endif 48 49 #define sctp_m_copym m_copym 50 51 /* 52 * Zone(pool) allocation routines: MUST be defined for each OS 53 * zone = zone/pool pointer 54 * name = string name of the zone/pool 55 * size = size of each zone/pool element 56 * number = number of elements in zone/pool 57 */ 58 #if defined(__FreeBSD__) 59 #if __FreeBSD_version >= 500000 60 #include <vm/uma.h> 61 #else 62 #include <vm/vm_zone.h> 63 #endif 64 #elif defined(__NetBSD__) || defined(__OpenBSD__) 65 #include <sys/pool.h> 66 #endif 67 68 /* SCTP_ZONE_INIT: initialize the zone */ 69 #if defined(__FreeBSD__) 70 #if __FreeBSD_version >= 500000 71 #define UMA_ZFLAG_FULL 0x0020 72 #define SCTP_ZONE_INIT(zone, name, size, number) { \ 73 zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\ 74 UMA_ZFLAG_FULL); \ 75 uma_zone_set_max(zone, number); \ 76 } 77 #else 78 #define SCTP_ZONE_INIT(zone, name, size, number) \ 79 zone = zinit(name, size, number, ZONE_INTERRUPT, 0); 80 #endif 81 #elif defined(__APPLE__) 82 #define SCTP_ZONE_INIT(zone, name, size, number) \ 83 zone = (void *)zinit(size, number * size, number, name); 84 #elif defined(__OpenBSD__) || defined(__NetBSD__) 85 #define SCTP_ZONE_INIT(zone, name, size, number) \ 86 pool_init(&(zone), size, 0, 0, 0, name, NULL, IPL_NET); 87 #else 88 /* don't know this OS! */ 89 force_compile_error; 90 #endif 91 92 /* SCTP_ZONE_GET: allocate element from the zone */ 93 #if defined(__FreeBSD__) 94 #if __FreeBSD_version >= 500000 95 #define SCTP_ZONE_GET(zone) \ 96 uma_zalloc(zone, M_NOWAIT); 97 #else 98 #define SCTP_ZONE_GET(zone) \ 99 zalloci(zone); 100 #endif 101 #elif defined(__APPLE__) 102 #define SCTP_ZONE_GET(zone) \ 103 zalloc(zone); 104 #elif defined(__NetBSD__) || defined(__OpenBSD__) 105 #define SCTP_ZONE_GET(zone) \ 106 pool_get(&zone, PR_NOWAIT); 107 #else 108 /* don't know this OS! */ 109 force_compile_error; 110 #endif 111 112 /* SCTP_ZONE_FREE: free element from the zone */ 113 #if defined(__FreeBSD__) 114 #if __FreeBSD_version >= 500000 115 #define SCTP_ZONE_FREE(zone, element) \ 116 uma_zfree(zone, element); 117 #else 118 #define SCTP_ZONE_FREE(zone, element) \ 119 zfreei(zone, element); 120 #endif 121 #elif defined(__APPLE__) 122 #define SCTP_ZONE_FREE(zone, element) \ 123 zfree(zone, element); 124 #elif defined(__NetBSD__) || defined(__OpenBSD__) 125 #define SCTP_ZONE_FREE(zone, element) \ 126 pool_put(&zone, element); 127 #else 128 /* don't know this OS! */ 129 force_compile_error; 130 #endif 131 132 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.my_vtag) 133 134 /* 135 * Function prototypes 136 */ 137 struct ifaddr *sctp_find_ifa_by_addr(struct sockaddr *sa); 138 139 u_int32_t sctp_select_initial_TSN(struct sctp_pcb *); 140 141 u_int32_t sctp_select_a_tag(struct sctp_inpcb *); 142 143 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t); 144 145 int sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *, 146 struct sctp_nets *); 147 148 int sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *, 149 struct sctp_nets *); 150 151 u_int32_t sctp_calculate_sum(struct mbuf *, int32_t *, u_int32_t); 152 153 void sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, 154 u_long); 155 156 int find_next_best_mtu(int); 157 158 u_int32_t sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *, 159 struct sctp_nets *, struct timeval *); 160 161 u_int32_t sctp_calculate_len(struct mbuf *); 162 163 void *sctp_m_getptr(struct mbuf *, int, int, u_int8_t *); 164 165 struct sctp_paramhdr *sctp_get_next_param(struct mbuf *, int, 166 struct sctp_paramhdr *, int); 167 168 int sctp_add_pad_tombuf(struct mbuf *, int); 169 170 int sctp_pad_lastmbuf(struct mbuf *, int); 171 172 void sctp_ulp_notify(u_int32_t, struct sctp_tcb *, u_int32_t, void *); 173 174 void sctp_report_all_outbound(struct sctp_tcb *); 175 176 int sctp_expand_mapping_array(struct sctp_association *); 177 178 void sctp_abort_notification(struct sctp_tcb *, int); 179 180 /* We abort responding to an IP packet for some reason */ 181 void sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *, 182 struct mbuf *, int, struct sctphdr *, struct mbuf *); 183 184 /* We choose to abort via user input */ 185 void sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int, 186 struct mbuf *); 187 188 void sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *, 189 struct sctp_inpcb *, struct mbuf *); 190 191 int sctp_is_there_an_abort_here(struct mbuf *, int, int *); 192 uint32_t sctp_is_same_scope(const struct sockaddr_in6 *, 193 const struct sockaddr_in6 *); 194 const struct sockaddr_in6 *sctp_recover_scope(const struct sockaddr_in6 *, 195 struct sockaddr_in6 *); 196 197 int sctp_cmpaddr(const struct sockaddr *, const struct sockaddr *); 198 199 void sctp_print_address(const struct sockaddr *); 200 void sctp_print_address_pkt(struct ip *, struct sctphdr *); 201 202 int sbappendaddr_nocheck(struct sockbuf *, const struct sockaddr *, 203 struct mbuf *, struct mbuf *, u_int32_t, struct sctp_inpcb *); 204 205 206 int sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *, 207 int, struct sctpchunk_listhead *); 208 209 struct mbuf *sctp_generate_invmanparam(int); 210 211 /* 212 * this is an evil layer violation that I think is a hack.. but I stand 213 * alone on the tsvwg in this thought... everyone else considers it part 214 * of the sockets layer (along with all of the peeloff code :<) 215 */ 216 u_int32_t sctp_get_first_vtag_from_sb(struct socket *); 217 218 219 void sctp_grub_through_socket_buffer(struct sctp_inpcb *, struct socket *, 220 struct socket *, struct sctp_tcb *); 221 222 void sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *, 223 struct sctp_tmit_chunk *); 224 225 #ifdef SCTP_STAT_LOGGING 226 void sctp_log_strm_del_alt(u_int32_t, u_int16_t, int); 227 228 void sctp_log_strm_del(struct sctp_tmit_chunk *, struct sctp_tmit_chunk *, int); 229 void sctp_log_cwnd(struct sctp_nets *, int, uint8_t); 230 void sctp_log_maxburst(struct sctp_nets *, int, int, uint8_t); 231 void sctp_log_block(uint8_t, struct socket *, struct sctp_association *); 232 void sctp_log_rwnd(uint8_t, u_int32_t, u_int32_t, u_int32_t ); 233 void sctp_log_mbcnt(uint8_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t); 234 void sctp_log_rwnd_set(uint8_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t); 235 int sctp_fill_stat_log(struct mbuf *); 236 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int); 237 void sctp_log_map(uint32_t, uint32_t, uint32_t, int); 238 239 void sctp_clr_stat_log(void); 240 241 #endif 242 243 #ifdef SCTP_AUDITING_ENABLED 244 void sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *, 245 struct sctp_nets *); 246 void sctp_audit_log(u_int8_t, u_int8_t); 247 248 #endif 249 250 #ifdef SCTP_BASE_FREEBSD 251 /* Note: these are in <sys/time.h>, but not in kernel space */ 252 #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 253 #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 254 #define timercmp(tvp, uvp, cmp) \ 255 (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 256 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 257 ((tvp)->tv_sec cmp (uvp)->tv_sec)) 258 #define timeradd(tvp, uvp, vvp) \ 259 do { \ 260 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 261 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 262 if ((vvp)->tv_usec >= 1000000) { \ 263 (vvp)->tv_sec++; \ 264 (vvp)->tv_usec -= 1000000; \ 265 } \ 266 } while (/* CONSTCOND */ 0) 267 #define timersub(tvp, uvp, vvp) \ 268 do { \ 269 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 270 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 271 if ((vvp)->tv_usec < 0) { \ 272 (vvp)->tv_sec--; \ 273 (vvp)->tv_usec += 1000000; \ 274 } \ 275 } while (/* CONSTCOND */ 0) 276 #endif /* SCTP_BASE_FREEBSD */ 277 278 #endif /* _KERNEL */ 279 #endif 280
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