2 * Copyright (c) 2001-2006, Cisco Systems, Inc. All rights reserved.
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5 * modification, are permitted provided that the following conditions are met:
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32 /* $KAME: sctputil.h,v 1.15 2005/03/06 16:04:19 itojun Exp $ */
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36 #ifndef __sctputil_h__
37 #define __sctputil_h__
43 #ifdef SCTP_MBUF_LOGGING
45 struct mbuf *sctp_m_free(struct mbuf *m);
46 void sctp_m_freem(struct mbuf *m);
49 #define sctp_m_free m_free
50 #define sctp_m_freem m_freem
54 #define sctp_m_copym m_copym
56 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
62 struct ifaddr *sctp_find_ifa_by_addr(struct sockaddr *sa);
64 uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
66 uint32_t sctp_select_a_tag(struct sctp_inpcb *);
68 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t);
70 void sctp_fill_random_store(struct sctp_pcb *);
73 sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
77 sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
78 struct sctp_nets *, uint32_t);
80 uint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t);
83 sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *,
87 sctp_add_to_readq(struct sctp_inpcb *inp,
88 struct sctp_tcb *stcb,
89 struct sctp_queued_to_read *control,
94 sctp_append_to_readq(struct sctp_inpcb *inp,
95 struct sctp_tcb *stcb,
96 struct sctp_queued_to_read *control,
103 int find_next_best_mtu(int);
106 sctp_timeout_handler(void *);
109 sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
110 struct sctp_nets *, struct timeval *);
112 uint32_t sctp_calculate_len(struct mbuf *);
114 caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
116 struct sctp_paramhdr *
117 sctp_get_next_param(struct mbuf *, int,
118 struct sctp_paramhdr *, int);
120 int sctp_add_pad_tombuf(struct mbuf *, int);
122 int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
124 void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *);
127 sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
128 struct sctp_inpcb *new_inp,
129 struct sctp_tcb *stcb);
132 void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
134 void sctp_report_all_outbound(struct sctp_tcb *, int);
136 int sctp_expand_mapping_array(struct sctp_association *);
138 void sctp_abort_notification(struct sctp_tcb *, int);
140 /* We abort responding to an IP packet for some reason */
142 sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *,
143 struct mbuf *, int, struct sctphdr *, struct mbuf *);
145 /* We choose to abort via user input */
147 sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int,
151 sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
152 struct sctp_inpcb *, struct mbuf *);
154 int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
155 uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
156 struct sockaddr_in6 *
157 sctp_recover_scope(struct sockaddr_in6 *,
158 struct sockaddr_in6 *);
163 #define sctp_recover_scope_mac(addr, store) do { \
164 if ((addr->sin6_family == AF_INET6) && \
165 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr)) && \
166 (addr->sin6_scope_id == 0)) { \
168 if (!sa6_recoverscope(store)) { \
176 int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
178 void sctp_print_address(struct sockaddr *);
179 void sctp_print_address_pkt(struct ip *, struct sctphdr *);
182 sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb,
183 uint32_t error, int no_lock);
186 sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
187 int, struct sctpchunk_listhead *);
189 struct mbuf *sctp_generate_invmanparam(int);
192 #ifdef SCTP_MBCNT_LOGGING
194 sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
195 struct sctp_tmit_chunk *);
198 #define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
200 if (tp1->data != NULL) { \
201 atomic_add_int(&((asoc)->chunks_on_out_queue), -chk_cnt); \
202 if ((asoc)->total_output_queue_size >= tp1->book_size) { \
203 atomic_add_int(&((asoc)->total_output_queue_size), -tp1->book_size); \
205 (asoc)->total_output_queue_size = 0; \
207 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
208 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
209 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
210 atomic_add_int(&((stcb)->sctp_socket->so_snd.sb_cc), -tp1->book_size); \
212 stcb->sctp_socket->so_snd.sb_cc = 0; \
220 #define sctp_free_spbufspace(stcb, asoc, sp) \
222 if (sp->data != NULL) { \
223 atomic_add_int(&(asoc)->chunks_on_out_queue, -1); \
224 if ((asoc)->total_output_queue_size >= sp->length) { \
225 atomic_add_int(&(asoc)->total_output_queue_size,sp->length); \
227 (asoc)->total_output_queue_size = 0; \
229 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
230 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
231 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
232 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
234 stcb->sctp_socket->so_snd.sb_cc = 0; \
240 #define sctp_snd_sb_alloc(stcb, sz) \
242 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
243 if ((stcb->sctp_socket != NULL) && \
244 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
245 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
246 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
252 sctp_soreceive(struct socket *so, struct sockaddr **psa,
255 struct mbuf **controlp,
259 #ifdef SCTP_STAT_LOGGING
261 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
264 sctp_wakeup_log(struct sctp_tcb *stcb,
266 uint32_t wake_cnt, int from);
268 void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
270 void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
274 sctp_log_mb(struct mbuf *m, int from);
277 sctp_sblog(struct sockbuf *sb,
278 struct sctp_tcb *stcb, int from, int incr);
281 sctp_log_strm_del(struct sctp_queued_to_read *control,
282 struct sctp_queued_to_read *poschk,
284 void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
285 void rto_logging(struct sctp_nets *net, int from);
287 void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
289 void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
290 void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
291 void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int);
292 void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
293 void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
294 void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
295 int sctp_fill_stat_log(struct mbuf *);
296 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
297 void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
298 void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
300 void sctp_clr_stat_log(void);
304 #ifdef SCTP_AUDITING_ENABLED
306 sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
308 void sctp_audit_log(uint8_t, uint8_t);