From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- netwerk/sctp/src/netinet/sctp_var.h | 453 ++++++++++++++++++++++++++++++++++++ 1 file changed, 453 insertions(+) create mode 100644 netwerk/sctp/src/netinet/sctp_var.h (limited to 'netwerk/sctp/src/netinet/sctp_var.h') diff --git a/netwerk/sctp/src/netinet/sctp_var.h b/netwerk/sctp/src/netinet/sctp_var.h new file mode 100644 index 0000000000..de26bb1d39 --- /dev/null +++ b/netwerk/sctp/src/netinet/sctp_var.h @@ -0,0 +1,453 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. + * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * a) Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * b) Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * + * c) Neither the name of Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#if defined(__FreeBSD__) && !defined(__Userspace__) +#include +__FBSDID("$FreeBSD$"); +#endif + +#ifndef _NETINET_SCTP_VAR_H_ +#define _NETINET_SCTP_VAR_H_ + +#include + +#if defined(_KERNEL) || defined(__Userspace__) + +#if !defined(__Userspace__) +#if defined(__FreeBSD__) +extern struct protosw sctp_seqpacket_protosw, sctp_stream_protosw; +#else +extern struct pr_usrreqs sctp_usrreqs; +#endif +#endif + +#define sctp_feature_on(inp, feature) (inp->sctp_features |= feature) +#define sctp_feature_off(inp, feature) (inp->sctp_features &= ~feature) +#define sctp_is_feature_on(inp, feature) ((inp->sctp_features & feature) == feature) +#define sctp_is_feature_off(inp, feature) ((inp->sctp_features & feature) == 0) + +#define sctp_stcb_feature_on(inp, stcb, feature) {\ + if (stcb) { \ + stcb->asoc.sctp_features |= feature; \ + } else if (inp) { \ + inp->sctp_features |= feature; \ + } \ +} +#define sctp_stcb_feature_off(inp, stcb, feature) {\ + if (stcb) { \ + stcb->asoc.sctp_features &= ~feature; \ + } else if (inp) { \ + inp->sctp_features &= ~feature; \ + } \ +} +#define sctp_stcb_is_feature_on(inp, stcb, feature) \ + (((stcb != NULL) && \ + ((stcb->asoc.sctp_features & feature) == feature)) || \ + ((stcb == NULL) && (inp != NULL) && \ + ((inp->sctp_features & feature) == feature))) +#define sctp_stcb_is_feature_off(inp, stcb, feature) \ + (((stcb != NULL) && \ + ((stcb->asoc.sctp_features & feature) == 0)) || \ + ((stcb == NULL) && (inp != NULL) && \ + ((inp->sctp_features & feature) == 0)) || \ + ((stcb == NULL) && (inp == NULL))) + +/* managing mobility_feature in inpcb (by micchie) */ +#define sctp_mobility_feature_on(inp, feature) (inp->sctp_mobility_features |= feature) +#define sctp_mobility_feature_off(inp, feature) (inp->sctp_mobility_features &= ~feature) +#define sctp_is_mobility_feature_on(inp, feature) (inp->sctp_mobility_features & feature) +#define sctp_is_mobility_feature_off(inp, feature) ((inp->sctp_mobility_features & feature) == 0) + +#define sctp_maxspace(sb) (max((sb)->sb_hiwat,SCTP_MINIMAL_RWND)) + +#define sctp_sbspace(asoc, sb) ((long) ((sctp_maxspace(sb) > (asoc)->sb_cc) ? (sctp_maxspace(sb) - (asoc)->sb_cc) : 0)) + +#define sctp_sbspace_failedmsgs(sb) ((long) ((sctp_maxspace(sb) > SCTP_SBAVAIL(sb)) ? (sctp_maxspace(sb) - SCTP_SBAVAIL(sb)) : 0)) + +#define sctp_sbspace_sub(a,b) (((a) > (b)) ? ((a) - (b)) : 0) + +/* + * I tried to cache the readq entries at one point. But the reality + * is that it did not add any performance since this meant we had to + * lock the STCB on read. And at that point once you have to do an + * extra lock, it really does not matter if the lock is in the ZONE + * stuff or in our code. Note that this same problem would occur with + * an mbuf cache as well so it is not really worth doing, at least + * right now :-D + */ +#ifdef INVARIANTS +#define sctp_free_a_readq(_stcb, _readq) { \ + if ((_readq)->on_strm_q) \ + panic("On strm q stcb:%p readq:%p", (_stcb), (_readq)); \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_readq), (_readq)); \ + SCTP_DECR_READQ_COUNT(); \ +} +#else +#define sctp_free_a_readq(_stcb, _readq) { \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_readq), (_readq)); \ + SCTP_DECR_READQ_COUNT(); \ +} +#endif + +#define sctp_alloc_a_readq(_stcb, _readq) { \ + (_readq) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_readq), struct sctp_queued_to_read); \ + if ((_readq)) { \ + SCTP_INCR_READQ_COUNT(); \ + } \ +} + +#define sctp_free_a_strmoq(_stcb, _strmoq, _so_locked) { \ + if ((_strmoq)->holds_key_ref) { \ + sctp_auth_key_release(stcb, sp->auth_keyid, _so_locked); \ + (_strmoq)->holds_key_ref = 0; \ + } \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_strmoq), (_strmoq)); \ + SCTP_DECR_STRMOQ_COUNT(); \ +} + +#define sctp_alloc_a_strmoq(_stcb, _strmoq) { \ + (_strmoq) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_strmoq), struct sctp_stream_queue_pending); \ + if ((_strmoq)) { \ + memset(_strmoq, 0, sizeof(struct sctp_stream_queue_pending)); \ + SCTP_INCR_STRMOQ_COUNT(); \ + (_strmoq)->holds_key_ref = 0; \ + } \ +} + +#define sctp_free_a_chunk(_stcb, _chk, _so_locked) { \ + if ((_chk)->holds_key_ref) {\ + sctp_auth_key_release((_stcb), (_chk)->auth_keyid, _so_locked); \ + (_chk)->holds_key_ref = 0; \ + } \ + if (_stcb) { \ + SCTP_TCB_LOCK_ASSERT((_stcb)); \ + if ((_chk)->whoTo) { \ + sctp_free_remote_addr((_chk)->whoTo); \ + (_chk)->whoTo = NULL; \ + } \ + if (((_stcb)->asoc.free_chunk_cnt > SCTP_BASE_SYSCTL(sctp_asoc_free_resc_limit)) || \ + (SCTP_BASE_INFO(ipi_free_chunks) > SCTP_BASE_SYSCTL(sctp_system_free_resc_limit))) { \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_chunk), (_chk)); \ + SCTP_DECR_CHK_COUNT(); \ + } else { \ + TAILQ_INSERT_TAIL(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \ + (_stcb)->asoc.free_chunk_cnt++; \ + atomic_add_int(&SCTP_BASE_INFO(ipi_free_chunks), 1); \ + } \ + } else { \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_chunk), (_chk)); \ + SCTP_DECR_CHK_COUNT(); \ + } \ +} + +#define sctp_alloc_a_chunk(_stcb, _chk) { \ + if (TAILQ_EMPTY(&(_stcb)->asoc.free_chunks)) { \ + (_chk) = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_chunk), struct sctp_tmit_chunk); \ + if ((_chk)) { \ + SCTP_INCR_CHK_COUNT(); \ + (_chk)->whoTo = NULL; \ + (_chk)->holds_key_ref = 0; \ + } \ + } else { \ + (_chk) = TAILQ_FIRST(&(_stcb)->asoc.free_chunks); \ + TAILQ_REMOVE(&(_stcb)->asoc.free_chunks, (_chk), sctp_next); \ + atomic_subtract_int(&SCTP_BASE_INFO(ipi_free_chunks), 1); \ + (_chk)->holds_key_ref = 0; \ + SCTP_STAT_INCR(sctps_cached_chk); \ + (_stcb)->asoc.free_chunk_cnt--; \ + } \ +} + +#if defined(__FreeBSD__) && !defined(__Userspace__) +#define sctp_free_remote_addr(__net) { \ + if ((__net)) { \ + if (SCTP_DECREMENT_AND_CHECK_REFCOUNT(&(__net)->ref_count)) { \ + RO_NHFREE(&(__net)->ro); \ + if ((__net)->src_addr_selected) { \ + sctp_free_ifa((__net)->ro._s_addr); \ + (__net)->ro._s_addr = NULL; \ + } \ + (__net)->src_addr_selected = 0; \ + (__net)->dest_state &= ~SCTP_ADDR_REACHABLE; \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_net), (__net)); \ + SCTP_DECR_RADDR_COUNT(); \ + } \ + } \ +} + +#define sctp_sbfree(ctl, stcb, sb, m) { \ + SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \ + SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_mbcnt, MSIZE); \ + if (((ctl)->do_not_ref_stcb == 0) && stcb) {\ + SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \ + SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \ + } \ + if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \ + SCTP_BUF_TYPE(m) != MT_OOBDATA) \ + atomic_subtract_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \ +} + +#define sctp_sballoc(stcb, sb, m) { \ + atomic_add_int(&(sb)->sb_cc,SCTP_BUF_LEN((m))); \ + atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \ + if (stcb) { \ + atomic_add_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \ + atomic_add_int(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \ + } \ + if (SCTP_BUF_TYPE(m) != MT_DATA && SCTP_BUF_TYPE(m) != MT_HEADER && \ + SCTP_BUF_TYPE(m) != MT_OOBDATA) \ + atomic_add_int(&(sb)->sb_ctl,SCTP_BUF_LEN((m))); \ +} +#else /* FreeBSD Version <= 500000 or non-FreeBSD */ +#define sctp_free_remote_addr(__net) { \ + if ((__net)) { \ + if (SCTP_DECREMENT_AND_CHECK_REFCOUNT(&(__net)->ref_count)) { \ + if ((__net)->ro.ro_rt) { \ + RTFREE((__net)->ro.ro_rt); \ + (__net)->ro.ro_rt = NULL; \ + } \ + if ((__net)->src_addr_selected) { \ + sctp_free_ifa((__net)->ro._s_addr); \ + (__net)->ro._s_addr = NULL; \ + } \ + (__net)->src_addr_selected = 0; \ + (__net)->dest_state &=~SCTP_ADDR_REACHABLE; \ + SCTP_ZONE_FREE(SCTP_BASE_INFO(ipi_zone_net), (__net)); \ + SCTP_DECR_RADDR_COUNT(); \ + } \ + } \ +} + +#define sctp_sbfree(ctl, stcb, sb, m) { \ + SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \ + SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_mbcnt, MSIZE); \ + if (((ctl)->do_not_ref_stcb == 0) && stcb) { \ + SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \ + SCTP_SAVE_ATOMIC_DECREMENT(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \ + } \ +} + +#define sctp_sballoc(stcb, sb, m) { \ + atomic_add_int(&(sb)->sb_cc, SCTP_BUF_LEN((m))); \ + atomic_add_int(&(sb)->sb_mbcnt, MSIZE); \ + if (stcb) { \ + atomic_add_int(&(stcb)->asoc.sb_cc, SCTP_BUF_LEN((m))); \ + atomic_add_int(&(stcb)->asoc.my_rwnd_control_len, MSIZE); \ + } \ +} +#endif + +#define sctp_ucount_incr(val) { \ + val++; \ +} + +#define sctp_ucount_decr(val) { \ + if (val > 0) { \ + val--; \ + } else { \ + val = 0; \ + } \ +} + +#define sctp_mbuf_crush(data) do { \ + struct mbuf *_m; \ + _m = (data); \ + while (_m && (SCTP_BUF_LEN(_m) == 0)) { \ + (data) = SCTP_BUF_NEXT(_m); \ + SCTP_BUF_NEXT(_m) = NULL; \ + sctp_m_free(_m); \ + _m = (data); \ + } \ +} while (0) + +#define sctp_flight_size_decrease(tp1) do { \ + if (tp1->whoTo->flight_size >= tp1->book_size) \ + tp1->whoTo->flight_size -= tp1->book_size; \ + else \ + tp1->whoTo->flight_size = 0; \ +} while (0) + +#define sctp_flight_size_increase(tp1) do { \ + (tp1)->whoTo->flight_size += (tp1)->book_size; \ +} while (0) + +#ifdef SCTP_FS_SPEC_LOG +#define sctp_total_flight_decrease(stcb, tp1) do { \ + if (stcb->asoc.fs_index > SCTP_FS_SPEC_LOG_SIZE) \ + stcb->asoc.fs_index = 0;\ + stcb->asoc.fslog[stcb->asoc.fs_index].total_flight = stcb->asoc.total_flight; \ + stcb->asoc.fslog[stcb->asoc.fs_index].tsn = tp1->rec.data.tsn; \ + stcb->asoc.fslog[stcb->asoc.fs_index].book = tp1->book_size; \ + stcb->asoc.fslog[stcb->asoc.fs_index].sent = tp1->sent; \ + stcb->asoc.fslog[stcb->asoc.fs_index].incr = 0; \ + stcb->asoc.fslog[stcb->asoc.fs_index].decr = 1; \ + stcb->asoc.fs_index++; \ + tp1->window_probe = 0; \ + if (stcb->asoc.total_flight >= tp1->book_size) { \ + stcb->asoc.total_flight -= tp1->book_size; \ + if (stcb->asoc.total_flight_count > 0) \ + stcb->asoc.total_flight_count--; \ + } else { \ + stcb->asoc.total_flight = 0; \ + stcb->asoc.total_flight_count = 0; \ + } \ +} while (0) + +#define sctp_total_flight_increase(stcb, tp1) do { \ + if (stcb->asoc.fs_index > SCTP_FS_SPEC_LOG_SIZE) \ + stcb->asoc.fs_index = 0;\ + stcb->asoc.fslog[stcb->asoc.fs_index].total_flight = stcb->asoc.total_flight; \ + stcb->asoc.fslog[stcb->asoc.fs_index].tsn = tp1->rec.data.tsn; \ + stcb->asoc.fslog[stcb->asoc.fs_index].book = tp1->book_size; \ + stcb->asoc.fslog[stcb->asoc.fs_index].sent = tp1->sent; \ + stcb->asoc.fslog[stcb->asoc.fs_index].incr = 1; \ + stcb->asoc.fslog[stcb->asoc.fs_index].decr = 0; \ + stcb->asoc.fs_index++; \ + (stcb)->asoc.total_flight_count++; \ + (stcb)->asoc.total_flight += (tp1)->book_size; \ +} while (0) + +#else + +#define sctp_total_flight_decrease(stcb, tp1) do { \ + tp1->window_probe = 0; \ + if (stcb->asoc.total_flight >= tp1->book_size) { \ + stcb->asoc.total_flight -= tp1->book_size; \ + if (stcb->asoc.total_flight_count > 0) \ + stcb->asoc.total_flight_count--; \ + } else { \ + stcb->asoc.total_flight = 0; \ + stcb->asoc.total_flight_count = 0; \ + } \ +} while (0) + +#define sctp_total_flight_increase(stcb, tp1) do { \ + (stcb)->asoc.total_flight_count++; \ + (stcb)->asoc.total_flight += (tp1)->book_size; \ +} while (0) + +#endif + +#define SCTP_PF_ENABLED(_net) (_net->pf_threshold < _net->failure_threshold) +#define SCTP_NET_IS_PF(_net) (_net->pf_threshold < _net->error_count) + +struct sctp_nets; +struct sctp_inpcb; +struct sctp_tcb; +struct sctphdr; + +#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__) +void sctp_close(struct socket *so); +#else +int sctp_detach(struct socket *so); +#endif +int sctp_disconnect(struct socket *so); +#if !defined(__Userspace__) +#if defined(__APPLE__) && !defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) && !defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION) && !defined(APPLE_ELCAPITAN) +void sctp_ctlinput(int, struct sockaddr *, void *, struct ifnet * SCTP_UNUSED); +#elif defined(__FreeBSD__) +ipproto_ctlinput_t sctp_ctlinput; +#else +void sctp_ctlinput(int, struct sockaddr *, void *); +#endif +int sctp_ctloutput(struct socket *, struct sockopt *); +#ifdef INET +void sctp_input_with_port(struct mbuf *, int, uint16_t); +#if defined(__FreeBSD__) && !defined(__Userspace__) +int sctp_input(struct mbuf **, int *, int); +#else +void sctp_input(struct mbuf *, int); +#endif +#endif +void sctp_pathmtu_adjustment(struct sctp_tcb *, uint32_t, bool); +#else +#if defined(__Userspace__) +void sctp_pathmtu_adjustment(struct sctp_tcb *, uint32_t, bool); +#else +void sctp_input(struct mbuf *,...); +#endif +void *sctp_ctlinput(int, struct sockaddr *, void *); +int sctp_ctloutput(int, struct socket *, int, int, struct mbuf **); +#endif +#if !(defined(__FreeBSD__) && !defined(__Userspace__)) +void sctp_drain(void); +#endif +#if defined(__Userspace__) +void sctp_init(uint16_t, + int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df), + void (*)(const char *, ...), int start_threads); +#elif defined(__APPLE__) && (!defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) &&!defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION)) +void sctp_init(struct protosw *pp, struct domain *dp); +#else +#if !defined(__FreeBSD__) +void sctp_init(void); +#endif +void sctp_notify(struct sctp_inpcb *, struct sctp_tcb *, struct sctp_nets *, + uint8_t, uint8_t, uint16_t, uint32_t); +#endif +#if !defined(__FreeBSD__) && !defined(__Userspace__) +void sctp_finish(void); +#endif +#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__) +int sctp_flush(struct socket *, int); +#endif +int sctp_shutdown(struct socket *); +int sctp_bindx(struct socket *, int, struct sockaddr_storage *, + int, int, struct proc *); +/* can't use sctp_assoc_t here */ +int sctp_peeloff(struct socket *, struct socket *, int, caddr_t, int *); +#if !defined(__Userspace__) +int sctp_ingetaddr(struct socket *, struct sockaddr **); +#else +int sctp_ingetaddr(struct socket *, struct mbuf *); +#endif +#if !defined(__Userspace__) +int sctp_peeraddr(struct socket *, struct sockaddr **); +#else +int sctp_peeraddr(struct socket *, struct mbuf *); +#endif +#if defined(__FreeBSD__) && !defined(__Userspace__) +int sctp_listen(struct socket *, int, struct thread *); +#elif defined(_WIN32) && !defined(__Userspace__) +int sctp_listen(struct socket *, int, PKTHREAD); +#elif defined(__Userspace__) +int sctp_listen(struct socket *, int, struct proc *); +#else +int sctp_listen(struct socket *, struct proc *); +#endif +int sctp_accept(struct socket *, struct sockaddr **); + +#endif /* _KERNEL */ + +#endif /* !_NETINET_SCTP_VAR_H_ */ -- cgit v1.2.3