2 * Copyright (c) 2001-2007, 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__
42 #ifdef SCTP_MBUF_LOGGING
44 struct mbuf *sctp_m_free(struct mbuf *m);
45 void sctp_m_freem(struct mbuf *m);
48 #define sctp_m_free m_free
49 #define sctp_m_freem m_freem
53 #define sctp_get_associd(stcb) ((sctp_assoc_t)stcb->asoc.assoc_id)
59 struct ifaddr *sctp_find_ifa_by_addr(struct sockaddr *sa);
61 uint32_t sctp_select_initial_TSN(struct sctp_pcb *);
63 uint32_t sctp_select_a_tag(struct sctp_inpcb *);
65 int sctp_init_asoc(struct sctp_inpcb *, struct sctp_association *, int, uint32_t);
67 void sctp_fill_random_store(struct sctp_pcb *);
70 sctp_timer_start(int, struct sctp_inpcb *, struct sctp_tcb *,
74 sctp_timer_stop(int, struct sctp_inpcb *, struct sctp_tcb *,
75 struct sctp_nets *, uint32_t);
77 uint32_t sctp_calculate_sum(struct mbuf *, int32_t *, uint32_t);
80 sctp_mtu_size_reset(struct sctp_inpcb *, struct sctp_association *, uint32_t);
83 sctp_add_to_readq(struct sctp_inpcb *inp,
84 struct sctp_tcb *stcb,
85 struct sctp_queued_to_read *control,
90 sctp_append_to_readq(struct sctp_inpcb *inp,
91 struct sctp_tcb *stcb,
92 struct sctp_queued_to_read *control,
99 int find_next_best_mtu(int);
102 sctp_timeout_handler(void *);
105 sctp_calculate_rto(struct sctp_tcb *, struct sctp_association *,
106 struct sctp_nets *, struct timeval *);
108 uint32_t sctp_calculate_len(struct mbuf *);
110 caddr_t sctp_m_getptr(struct mbuf *, int, int, uint8_t *);
112 struct sctp_paramhdr *
113 sctp_get_next_param(struct mbuf *, int,
114 struct sctp_paramhdr *, int);
116 int sctp_add_pad_tombuf(struct mbuf *, int);
118 int sctp_pad_lastmbuf(struct mbuf *, int, struct mbuf *);
120 void sctp_ulp_notify(uint32_t, struct sctp_tcb *, uint32_t, void *);
123 sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp,
124 struct sctp_inpcb *new_inp,
125 struct sctp_tcb *stcb);
128 void sctp_stop_timers_for_shutdown(struct sctp_tcb *);
130 void sctp_report_all_outbound(struct sctp_tcb *, int);
132 int sctp_expand_mapping_array(struct sctp_association *);
134 void sctp_abort_notification(struct sctp_tcb *, int);
136 /* We abort responding to an IP packet for some reason */
138 sctp_abort_association(struct sctp_inpcb *, struct sctp_tcb *,
139 struct mbuf *, int, struct sctphdr *, struct mbuf *);
141 /* We choose to abort via user input */
143 sctp_abort_an_association(struct sctp_inpcb *, struct sctp_tcb *, int,
147 sctp_handle_ootb(struct mbuf *, int, int, struct sctphdr *,
148 struct sctp_inpcb *, struct mbuf *);
150 int sctp_is_there_an_abort_here(struct mbuf *, int, uint32_t *);
151 uint32_t sctp_is_same_scope(struct sockaddr_in6 *, struct sockaddr_in6 *);
152 struct sockaddr_in6 *
153 sctp_recover_scope(struct sockaddr_in6 *,
154 struct sockaddr_in6 *);
159 #define sctp_recover_scope_mac(addr, store) do { \
160 if ((addr->sin6_family == AF_INET6) && \
161 (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr)) && \
162 (addr->sin6_scope_id == 0)) { \
164 if (!sa6_recoverscope(store)) { \
172 int sctp_cmpaddr(struct sockaddr *, struct sockaddr *);
174 void sctp_print_address(struct sockaddr *);
175 void sctp_print_address_pkt(struct ip *, struct sctphdr *);
178 sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb,
179 uint32_t error, int no_lock);
182 sctp_release_pr_sctp_chunk(struct sctp_tcb *, struct sctp_tmit_chunk *,
183 int, struct sctpchunk_listhead *);
185 struct mbuf *sctp_generate_invmanparam(int);
188 #ifdef SCTP_MBCNT_LOGGING
190 sctp_free_bufspace(struct sctp_tcb *, struct sctp_association *,
191 struct sctp_tmit_chunk *);
194 #define sctp_free_bufspace(stcb, asoc, tp1, chk_cnt) \
196 if (tp1->data != NULL) { \
197 atomic_add_int(&((asoc)->chunks_on_out_queue), -chk_cnt); \
198 if ((asoc)->total_output_queue_size >= tp1->book_size) { \
199 atomic_add_int(&((asoc)->total_output_queue_size), -tp1->book_size); \
201 (asoc)->total_output_queue_size = 0; \
203 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
204 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
205 if (stcb->sctp_socket->so_snd.sb_cc >= tp1->book_size) { \
206 atomic_add_int(&((stcb)->sctp_socket->so_snd.sb_cc), -tp1->book_size); \
208 stcb->sctp_socket->so_snd.sb_cc = 0; \
216 #define sctp_free_spbufspace(stcb, asoc, sp) \
218 if (sp->data != NULL) { \
219 atomic_add_int(&(asoc)->chunks_on_out_queue, -1); \
220 if ((asoc)->total_output_queue_size >= sp->length) { \
221 atomic_add_int(&(asoc)->total_output_queue_size,sp->length); \
223 (asoc)->total_output_queue_size = 0; \
225 if (stcb->sctp_socket && ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
226 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
227 if (stcb->sctp_socket->so_snd.sb_cc >= sp->length) { \
228 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sp->length); \
230 stcb->sctp_socket->so_snd.sb_cc = 0; \
236 #define sctp_snd_sb_alloc(stcb, sz) \
238 atomic_add_int(&stcb->asoc.total_output_queue_size,sz); \
239 if ((stcb->sctp_socket != NULL) && \
240 ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || \
241 (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { \
242 atomic_add_int(&stcb->sctp_socket->so_snd.sb_cc,sz); \
248 sctp_soreceive(struct socket *so, struct sockaddr **psa,
251 struct mbuf **controlp,
255 #ifdef SCTP_STAT_LOGGING
257 sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d);
260 sctp_wakeup_log(struct sctp_tcb *stcb,
262 uint32_t wake_cnt, int from);
264 void sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t, uint16_t, uint16_t, int);
266 void sctp_log_nagle_event(struct sctp_tcb *stcb, int action);
270 sctp_log_mb(struct mbuf *m, int from);
273 sctp_sblog(struct sockbuf *sb,
274 struct sctp_tcb *stcb, int from, int incr);
277 sctp_log_strm_del(struct sctp_queued_to_read *control,
278 struct sctp_queued_to_read *poschk,
280 void sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *, int, uint8_t);
281 void rto_logging(struct sctp_nets *net, int from);
283 void sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc);
285 void sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from);
286 void sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *, int, int, uint8_t);
287 void sctp_log_block(uint8_t, struct socket *, struct sctp_association *, int);
288 void sctp_log_rwnd(uint8_t, uint32_t, uint32_t, uint32_t);
289 void sctp_log_mbcnt(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
290 void sctp_log_rwnd_set(uint8_t, uint32_t, uint32_t, uint32_t, uint32_t);
291 int sctp_fill_stat_log(struct mbuf *);
292 void sctp_log_fr(uint32_t, uint32_t, uint32_t, int);
293 void sctp_log_sack(uint32_t, uint32_t, uint32_t, uint16_t, uint16_t, int);
294 void sctp_log_map(uint32_t, uint32_t, uint32_t, int);
296 void sctp_clr_stat_log(void);
300 #ifdef SCTP_AUDITING_ENABLED
302 sctp_auditing(int, struct sctp_inpcb *, struct sctp_tcb *,
304 void sctp_audit_log(uint8_t, uint8_t);