sync code with last improvements from OpenBSD
This commit is contained in:
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e70dd78b1d
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GPG Key ID:
F42C07F07E2E35B7
@ -92,6 +92,7 @@
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./usr/libdata/perl5/amd64-secbsd/CORE/scope.h
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./usr/libdata/perl5/amd64-secbsd/CORE/sv.h
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./usr/libdata/perl5/amd64-secbsd/CORE/sv_inline.h
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./usr/libdata/perl5/amd64-secbsd/CORE/syscall_emulator.h
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./usr/libdata/perl5/amd64-secbsd/CORE/thread.h
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./usr/libdata/perl5/amd64-secbsd/CORE/time64.h
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./usr/libdata/perl5/amd64-secbsd/CORE/time64_config.h
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@ -87,6 +87,7 @@
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./usr/libdata/perl5/aarch64-secbsd/CORE/scope.h
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./usr/libdata/perl5/aarch64-secbsd/CORE/sv.h
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./usr/libdata/perl5/aarch64-secbsd/CORE/sv_inline.h
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./usr/libdata/perl5/aarch64-secbsd/CORE/syscall_emulator.h
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./usr/libdata/perl5/aarch64-secbsd/CORE/thread.h
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./usr/libdata/perl5/aarch64-secbsd/CORE/time64.h
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./usr/libdata/perl5/aarch64-secbsd/CORE/time64_config.h
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@ -87,6 +87,7 @@
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./usr/libdata/perl5/arm-secbsd/CORE/scope.h
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./usr/libdata/perl5/arm-secbsd/CORE/sv.h
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./usr/libdata/perl5/arm-secbsd/CORE/sv_inline.h
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./usr/libdata/perl5/arm-secbsd/CORE/syscall_emulator.h
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./usr/libdata/perl5/arm-secbsd/CORE/thread.h
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./usr/libdata/perl5/arm-secbsd/CORE/time64.h
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./usr/libdata/perl5/arm-secbsd/CORE/time64_config.h
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@ -94,6 +94,7 @@
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./usr/libdata/perl5/i386-secbsd/CORE/scope.h
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./usr/libdata/perl5/i386-secbsd/CORE/sv.h
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./usr/libdata/perl5/i386-secbsd/CORE/sv_inline.h
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./usr/libdata/perl5/i386-secbsd/CORE/syscall_emulator.h
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./usr/libdata/perl5/i386-secbsd/CORE/thread.h
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./usr/libdata/perl5/i386-secbsd/CORE/time64.h
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./usr/libdata/perl5/i386-secbsd/CORE/time64_config.h
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@ -1,4 +1,4 @@
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/* $OpenBSD: tcp_input.c,v 1.390 2023/08/28 14:50:01 bluhm Exp $ */
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/* $OpenBSD: tcp_input.c,v 1.391 2023/09/03 21:37:17 bluhm Exp $ */
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/* $NetBSD: tcp_input.c,v 1.23 1996/02/13 23:43:44 christos Exp $ */
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/*
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@ -3159,19 +3159,6 @@ syn_cache_put(struct syn_cache *sc)
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pool_put(&syn_cache_pool, sc);
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}
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/*
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* We don't estimate RTT with SYNs, so each packet starts with the default
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* RTT and each timer step has a fixed timeout value.
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*/
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#define SYN_CACHE_TIMER_ARM(sc) \
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do { \
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TCPT_RANGESET((sc)->sc_rxtcur, \
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TCPTV_SRTTDFLT * tcp_backoff[(sc)->sc_rxtshift], TCPTV_MIN, \
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TCPTV_REXMTMAX); \
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if (timeout_add_msec(&(sc)->sc_timer, (sc)->sc_rxtcur)) \
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refcnt_take(&(sc)->sc_refcnt); \
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} while (/*CONSTCOND*/0)
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void
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syn_cache_init(void)
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{
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@ -3300,11 +3287,17 @@ syn_cache_insert(struct syn_cache *sc, struct tcpcb *tp)
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}
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/*
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* Initialize the entry's timer.
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* Initialize the entry's timer. We don't estimate RTT
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* with SYNs, so each packet starts with the default RTT
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* and each timer step has a fixed timeout value.
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*/
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sc->sc_rxttot = 0;
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sc->sc_rxtshift = 0;
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SYN_CACHE_TIMER_ARM(sc);
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TCPT_RANGESET(sc->sc_rxtcur,
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TCPTV_SRTTDFLT * tcp_backoff[sc->sc_rxtshift], TCPTV_MIN,
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TCPTV_REXMTMAX);
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if (timeout_add_msec(&sc->sc_timer, sc->sc_rxtcur))
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refcnt_take(&sc->sc_refcnt);
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/* Link it from tcpcb entry */
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refcnt_take(&sc->sc_refcnt);
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@ -3365,15 +3358,12 @@ syn_cache_timer(void *arg)
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/* Advance the timer back-off. */
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sc->sc_rxtshift++;
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SYN_CACHE_TIMER_ARM(sc);
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TCPT_RANGESET(sc->sc_rxtcur,
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TCPTV_SRTTDFLT * tcp_backoff[sc->sc_rxtshift], TCPTV_MIN,
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TCPTV_REXMTMAX);
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if (!timeout_add_msec(&sc->sc_timer, sc->sc_rxtcur))
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syn_cache_put(sc);
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/*
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* Decrement reference of this timer. We know there is another timer
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* as we just added it. So just deref, free is not necessary.
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*/
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lastref = refcnt_rele(&sc->sc_refcnt);
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KASSERT(lastref == 0);
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(void)lastref;
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NET_UNLOCK();
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return;
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@ -1,4 +1,4 @@
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/* $OpenBSD: channels.c,v 1.432 2023/07/04 03:59:21 dlg Exp $ */
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/* $OpenBSD: channels.c,v 1.433 2023/09/04 00:01:46 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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@ -2848,8 +2848,9 @@ channel_after_poll(struct ssh *ssh, struct pollfd *pfd, u_int npfd)
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/*
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* Enqueue data for channels with open or draining c->input.
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* Returns non-zero if a packet was enqueued.
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*/
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static void
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static int
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channel_output_poll_input_open(struct ssh *ssh, Channel *c)
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{
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size_t len, plen;
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@ -2872,7 +2873,7 @@ channel_output_poll_input_open(struct ssh *ssh, Channel *c)
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else
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chan_ibuf_empty(ssh, c);
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}
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return;
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return 0;
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}
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if (!c->have_remote_id)
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@ -2889,7 +2890,7 @@ channel_output_poll_input_open(struct ssh *ssh, Channel *c)
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*/
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if (plen > c->remote_window || plen > c->remote_maxpacket) {
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debug("channel %d: datagram too big", c->self);
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return;
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return 0;
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}
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/* Enqueue it */
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if ((r = sshpkt_start(ssh, SSH2_MSG_CHANNEL_DATA)) != 0 ||
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@ -2898,7 +2899,7 @@ channel_output_poll_input_open(struct ssh *ssh, Channel *c)
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(r = sshpkt_send(ssh)) != 0)
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fatal_fr(r, "channel %i: send datagram", c->self);
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c->remote_window -= plen;
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return;
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return 1;
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}
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/* Enqueue packet for buffered data. */
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@ -2907,7 +2908,7 @@ channel_output_poll_input_open(struct ssh *ssh, Channel *c)
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if (len > c->remote_maxpacket)
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len = c->remote_maxpacket;
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if (len == 0)
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return;
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return 0;
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if ((r = sshpkt_start(ssh, SSH2_MSG_CHANNEL_DATA)) != 0 ||
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(r = sshpkt_put_u32(ssh, c->remote_id)) != 0 ||
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(r = sshpkt_put_string(ssh, sshbuf_ptr(c->input), len)) != 0 ||
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@ -2916,19 +2917,21 @@ channel_output_poll_input_open(struct ssh *ssh, Channel *c)
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if ((r = sshbuf_consume(c->input, len)) != 0)
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fatal_fr(r, "channel %i: consume", c->self);
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c->remote_window -= len;
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return 1;
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}
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/*
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* Enqueue data for channels with open c->extended in read mode.
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* Returns non-zero if a packet was enqueued.
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*/
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static void
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static int
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channel_output_poll_extended_read(struct ssh *ssh, Channel *c)
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{
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size_t len;
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int r;
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if ((len = sshbuf_len(c->extended)) == 0)
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return;
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return 0;
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debug2("channel %d: rwin %u elen %zu euse %d", c->self,
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c->remote_window, sshbuf_len(c->extended), c->extended_usage);
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@ -2937,7 +2940,7 @@ channel_output_poll_extended_read(struct ssh *ssh, Channel *c)
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if (len > c->remote_maxpacket)
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len = c->remote_maxpacket;
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if (len == 0)
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return;
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return 0;
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if (!c->have_remote_id)
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fatal_f("channel %d: no remote id", c->self);
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if ((r = sshpkt_start(ssh, SSH2_MSG_CHANNEL_EXTENDED_DATA)) != 0 ||
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@ -2950,15 +2953,20 @@ channel_output_poll_extended_read(struct ssh *ssh, Channel *c)
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fatal_fr(r, "channel %i: consume", c->self);
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c->remote_window -= len;
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debug2("channel %d: sent ext data %zu", c->self, len);
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return 1;
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}
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/* If there is data to send to the connection, enqueue some of it now. */
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void
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/*
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* If there is data to send to the connection, enqueue some of it now.
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* Returns non-zero if data was enqueued.
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*/
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int
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channel_output_poll(struct ssh *ssh)
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{
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struct ssh_channels *sc = ssh->chanctxt;
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Channel *c;
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u_int i;
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int ret = 0;
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for (i = 0; i < sc->channels_alloc; i++) {
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c = sc->channels[i];
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@ -2981,12 +2989,13 @@ channel_output_poll(struct ssh *ssh)
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/* Get the amount of buffered data for this channel. */
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if (c->istate == CHAN_INPUT_OPEN ||
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c->istate == CHAN_INPUT_WAIT_DRAIN)
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channel_output_poll_input_open(ssh, c);
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ret |= channel_output_poll_input_open(ssh, c);
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/* Send extended data, i.e. stderr */
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if (!(c->flags & CHAN_EOF_SENT) &&
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c->extended_usage == CHAN_EXTENDED_READ)
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channel_output_poll_extended_read(ssh, c);
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ret |= channel_output_poll_extended_read(ssh, c);
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}
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return ret;
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}
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/* -- mux proxy support */
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@ -1,4 +1,4 @@
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/* $OpenBSD: channels.h,v 1.151 2023/07/04 03:59:21 dlg Exp $ */
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/* $OpenBSD: channels.h,v 1.152 2023/09/04 00:01:46 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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@ -332,7 +332,7 @@ struct timespec;
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void channel_prepare_poll(struct ssh *, struct pollfd **,
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u_int *, u_int *, u_int, struct timespec *);
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void channel_after_poll(struct ssh *, struct pollfd *, u_int);
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void channel_output_poll(struct ssh *);
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int channel_output_poll(struct ssh *);
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int channel_not_very_much_buffered_data(struct ssh *);
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void channel_close_all(struct ssh *);
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@ -1,4 +1,4 @@
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/* $OpenBSD: clientloop.c,v 1.394 2023/08/28 04:06:52 djm Exp $ */
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/* $OpenBSD: clientloop.c,v 1.396 2023/09/04 00:08:14 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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@ -524,7 +524,8 @@ send_chaff(struct ssh *ssh)
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* output fd should be polled.
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*/
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static int
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obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout)
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obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout,
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int channel_did_enqueue)
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{
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static int active;
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static struct timespec next_interval, chaff_until;
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@ -549,7 +550,8 @@ obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout)
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ssh_packet_have_data_to_write(ssh)) {
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/* Stop if the output buffer has more than a few keystrokes */
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stop_reason = "output buffer filling";
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} else if (active && ssh_packet_have_data_to_write(ssh)) {
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} else if (active && channel_did_enqueue &&
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ssh_packet_have_data_to_write(ssh)) {
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/* Still in active mode and have a keystroke queued. */
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had_keystroke = 1;
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} else if (active) {
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@ -564,9 +566,11 @@ obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout)
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}
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if (stop_reason != NULL) {
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active = 0;
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debug3_f("stopping: %s (%llu chaff packets sent)",
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stop_reason, nchaff);
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if (active) {
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debug3_f("stopping: %s (%llu chaff packets sent)",
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stop_reason, nchaff);
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active = 0;
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}
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return 1;
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}
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@ -576,7 +580,8 @@ obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout)
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* interactively. In this case, start quantising outbound packets to
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* fixed time intervals to hide inter-keystroke timing.
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*/
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if (!active && ssh_packet_interactive_data_to_write(ssh)) {
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if (!active && ssh_packet_interactive_data_to_write(ssh) &&
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channel_did_enqueue && ssh_packet_have_data_to_write(ssh)) {
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debug3_f("starting: interval %d",
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options.obscure_keystroke_timing_interval);
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just_started = had_keystroke = active = 1;
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@ -626,7 +631,7 @@ obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout)
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*/
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static void
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client_wait_until_can_do_something(struct ssh *ssh, struct pollfd **pfdp,
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u_int *npfd_allocp, u_int *npfd_activep, int rekeying,
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u_int *npfd_allocp, u_int *npfd_activep, int channel_did_enqueue,
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int *conn_in_readyp, int *conn_out_readyp)
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{
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struct timespec timeout;
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@ -650,7 +655,7 @@ client_wait_until_can_do_something(struct ssh *ssh, struct pollfd **pfdp,
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return;
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}
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oready = obfuscate_keystroke_timing(ssh, &timeout);
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oready = obfuscate_keystroke_timing(ssh, &timeout, channel_did_enqueue);
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/* Monitor server connection on reserved pollfd entries */
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(*pfdp)[0].fd = connection_in;
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@ -669,7 +674,7 @@ client_wait_until_can_do_something(struct ssh *ssh, struct pollfd **pfdp,
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ptimeout_deadline_monotime(&timeout, control_persist_exit_time);
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if (options.server_alive_interval > 0)
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ptimeout_deadline_monotime(&timeout, server_alive_time);
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if (options.rekey_interval > 0 && !rekeying) {
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if (options.rekey_interval > 0 && !ssh_packet_is_rekeying(ssh)) {
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ptimeout_deadline_sec(&timeout,
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ssh_packet_get_rekey_timeout(ssh));
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}
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@ -1391,7 +1396,7 @@ client_loop(struct ssh *ssh, int have_pty, int escape_char_arg,
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struct pollfd *pfd = NULL;
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u_int npfd_alloc = 0, npfd_active = 0;
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double start_time, total_time;
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int r, len;
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int channel_did_enqueue = 0, r, len;
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u_int64_t ibytes, obytes;
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int conn_in_ready, conn_out_ready;
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@ -1481,6 +1486,7 @@ client_loop(struct ssh *ssh, int have_pty, int escape_char_arg,
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/* Main loop of the client for the interactive session mode. */
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while (!quit_pending) {
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channel_did_enqueue = 0;
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/* Process buffered packets sent by the server. */
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client_process_buffered_input_packets(ssh);
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@ -1502,7 +1508,7 @@ client_loop(struct ssh *ssh, int have_pty, int escape_char_arg,
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* enqueue them for sending to the server.
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*/
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if (ssh_packet_not_very_much_data_to_write(ssh))
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channel_output_poll(ssh);
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channel_did_enqueue = channel_output_poll(ssh);
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/*
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* Check if the window size has changed, and buffer a
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@ -1518,7 +1524,7 @@ client_loop(struct ssh *ssh, int have_pty, int escape_char_arg,
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* available on one of the descriptors).
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*/
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client_wait_until_can_do_something(ssh, &pfd, &npfd_alloc,
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&npfd_active, ssh_packet_is_rekeying(ssh),
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&npfd_active, channel_did_enqueue,
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&conn_in_ready, &conn_out_ready);
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if (quit_pending)
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@ -1,4 +1,4 @@
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/* $OpenBSD: ssh.c,v 1.593 2023/07/26 23:06:00 djm Exp $ */
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/* $OpenBSD: ssh.c,v 1.594 2023/09/03 23:59:32 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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@ -2119,7 +2119,7 @@ ssh_session2_open(struct ssh *ssh)
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static int
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ssh_session2(struct ssh *ssh, const struct ssh_conn_info *cinfo)
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{
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int r, id = -1;
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int r, interactive, id = -1;
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char *cp, *tun_fwd_ifname = NULL;
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/* XXX should be pre-session */
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@ -2176,8 +2176,11 @@ ssh_session2(struct ssh *ssh, const struct ssh_conn_info *cinfo)
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if (options.session_type != SESSION_TYPE_NONE)
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id = ssh_session2_open(ssh);
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else {
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ssh_packet_set_interactive(ssh,
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options.control_master == SSHCTL_MASTER_NO,
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interactive = options.control_master == SSHCTL_MASTER_NO;
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/* ControlPersist may have clobbered ControlMaster, so check */
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if (need_controlpersist_detach)
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interactive = otty_flag != 0;
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ssh_packet_set_interactive(ssh, interactive,
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options.ip_qos_interactive, options.ip_qos_bulk);
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}
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|
||||
@ -1,4 +1,4 @@
|
||||
.\" $OpenBSD: dhcpd.8,v 1.31 2023/03/02 17:09:54 jmc Exp $
|
||||
.\" $OpenBSD: dhcpd.8,v 1.32 2023/09/03 20:19:13 stsp Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 1995, 1996 The Internet Software Consortium.
|
||||
.\" All rights reserved.
|
||||
@ -36,7 +36,7 @@
|
||||
.\" see ``http://www.isc.org/''. To learn more about Vixie
|
||||
.\" Enterprises, see ``http://www.vix.com''.
|
||||
.\"
|
||||
.Dd $Mdocdate: March 2 2023 $
|
||||
.Dd $Mdocdate: September 3 2023 $
|
||||
.Dt DHCPD 8
|
||||
.Os
|
||||
.Sh NAME
|
||||
@ -145,17 +145,27 @@ which a newly booted client would not be able to grasp.
|
||||
The names of the network interfaces on which
|
||||
.Nm
|
||||
should listen for broadcasts may be specified on the command line.
|
||||
This should be done on systems where
|
||||
Listing interfaces on the command line is usually optional but is required
|
||||
for running
|
||||
.Nm
|
||||
is unable to identify non-broadcast interfaces,
|
||||
but should not be required on other systems.
|
||||
in an
|
||||
.Xr rdomain 4
|
||||
other than 0, or on systems where
|
||||
.Nm
|
||||
is unable to identify non-broadcast interfaces.
|
||||
All specified interfaces must share the same routing domain and
|
||||
.Nm
|
||||
will set its own routing domain accordingly.
|
||||
.Pp
|
||||
If no interface names are specified on the command line,
|
||||
and the
|
||||
.Fl u
|
||||
option is not given,
|
||||
.Nm
|
||||
will identify all network interfaces which are up, eliminating non-broadcast
|
||||
interfaces if possible, and listen for DHCP broadcasts on each interface.
|
||||
will run in routing domain 0, and if the
|
||||
.Fl u
|
||||
option is not given
|
||||
.Nm
|
||||
will identify all network interfaces in all routing domains,
|
||||
eliminating non-broadcast interfaces if possible,
|
||||
and listen for DHCP broadcasts on each interface.
|
||||
.Pp
|
||||
The options are as follows:
|
||||
.Bl -tag -width Ds
|
||||
@ -464,6 +474,7 @@ DHCPD lease file.
|
||||
.El
|
||||
.Sh SEE ALSO
|
||||
.Xr pf 4 ,
|
||||
.Xr rdomain 4 ,
|
||||
.Xr dhcpd.conf 5 ,
|
||||
.Xr dhcpd.leases 5 ,
|
||||
.Xr dhclient 8 ,
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $OpenBSD: inetd.c,v 1.164 2023/04/19 12:58:16 jsg Exp $ */
|
||||
/* $OpenBSD: inetd.c,v 1.165 2023/09/03 22:01:00 bluhm Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1983,1991 The Regents of the University of California.
|
||||
@ -444,7 +444,7 @@ dg_badinput(struct sockaddr *sa)
|
||||
if (IN_MULTICAST(in.s_addr))
|
||||
goto bad;
|
||||
switch ((in.s_addr & 0xff000000) >> 24) {
|
||||
case 0: case 127: case 255:
|
||||
case 0: case 255:
|
||||
goto bad;
|
||||
}
|
||||
if (dg_broadcast(&in))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user