matt
7ebd19d744
According to Dave Borman, the iss should be using snd_nxt and not rcv_nxt
...
(from tcp_impl mailing-list).
1999-02-05 22:37:24 +00:00
explorer
25d32ef34d
REALLY only update the window when we get an ACK. (the old code seemed broken)
1999-02-04 22:58:37 +00:00
cjs
8befad84b1
Remove SCCS markers and make these compile in $NetBSD$ IDs.
1999-02-02 19:57:30 +00:00
thorpej
a350d7b28b
Set the tunnel destination address correctly. Should fix PR #6899 .
1999-02-02 07:20:13 +00:00
marc
5f688e6632
remove gre_softc declaration; the symbol is no longer used in this
...
file.
1999-02-02 07:10:45 +00:00
mycroft
5e373d307f
Clear mfchashtbl after it's deallocated, to kill a stray pointer. Fixes PR
...
5400.
1999-02-01 15:09:46 +00:00
thorpej
a22cfcf3d4
Make programs that use raw IP work again; trim the header length from ip_len
...
before handing the packet off to the socket.
1999-01-30 21:43:16 +00:00
itohy
7751c2e2eb
~htons(...) is always negative.
1999-01-28 21:29:27 +00:00
thorpej
6c30816c15
Fix a slight error in previous. Rearrange some code in tcp_respond() so
...
that a DIAGNOSTIC check against the destination address is actually
checking the destination address. "oops."
1999-01-26 08:28:50 +00:00
mycroft
8ede79f2b4
One more tweak to the checksum hack, and I promise I'm done. B-)
1999-01-25 15:53:29 +00:00
mycroft
50438b6df0
Absolutely minor tweak to generate better code.
1999-01-25 15:36:50 +00:00
mycroft
70e6acdfef
Update the comment about the checksum hack. It was way out of date.
1999-01-24 13:34:35 +00:00
mycroft
94895652e1
Modify the checksum slightly so that the htons()s can all be combined.
1999-01-24 12:57:38 +00:00
thorpej
a58f271406
Oops, forgot to update copyright notice in previous.
1999-01-24 01:21:18 +00:00
thorpej
86e2c3fbc6
* Completely rewrite syn_cache_respond().
...
- Don't use tcp_respond(), instead create the tcp/ip header from scratch,
and send it ourself.
- Reuse the mbuf that carried the SYN, or allocate one if that is not
available.
- Cache the route we look up to do the Path MTU Discovery check, and
transfer the reference to that route to the inpcb when the connection
completes.
* Macro'ize a small, but often repeated code fragment.
1999-01-24 01:19:28 +00:00
mycroft
b790730226
Fix problems with fr_tcpsum() that prevented the FTP proxy from working.
1999-01-23 08:50:52 +00:00
thorpej
a43786143f
Fix a problem pointed out by Charles Hannum; DF wasn't being set in
...
SYN,ACK packets during Path MTU Discovery. Fix tcp_respond() to do the
appropriate route lookup and set DF as appropriate.
Also, fixup similar code in tcp_output() to relookup the route if it
is down.
1999-01-20 03:39:54 +00:00
mycroft
231a906c71
There's just no plausible reason to byte-swap ip_id internally. It's opaque.
1999-01-19 23:39:56 +00:00
mycroft
7eeb5a04da
Don't screw with ip_len; just subtract from it where we actually use the
...
value.
1999-01-19 23:03:20 +00:00
mycroft
d3ea3de1af
Fix byte-swapping of ip_len in returned IP header.
1999-01-19 22:10:42 +00:00
mycroft
fc1211a6ab
Don't overwrite the checksum fields when checking them. There's no reason to
...
do this, and it screws up ICMP replies.
XXX The returned IP checksum and length are still wrong.
1999-01-19 21:58:40 +00:00
thorpej
4b0e6bb4dc
Domains are associated with protocol families, not address families.
1999-01-14 01:16:55 +00:00
thorpej
98d3903da8
Use the count supplied to the pseudo-device attach routine to dynamically
...
allocate (once) the ipip_softc array; don't assume NIPIP contains the count.
1999-01-13 23:01:20 +00:00
thorpej
555784ccd5
Fix byte order and ip_len inconsistencies in ICMP reply code. Also, fix
...
some formatting and HTONS(foo) vs. foo = htons(foo) inconsistencies.
PR #6602 , Darren Reed.
1999-01-11 22:35:06 +00:00
thorpej
6ae68b4feb
Pull the IP-in-IP tunneling support out of the GRE code. It's not handled
...
by a separate IP-IP input path.
XXX Should eventually do the same thing for IPPROTO_MOBILE.
1999-01-11 21:32:13 +00:00
thorpej
9508f259bf
Adjust for the new IP-IP input path. mrt_ipip_input() is called from
...
ipip_input(), and returns non-zero if mrt_ipip_input() handled the
packet.
XXX Eventually, the multicast code should probably use regular IP-IP
XXX `interfaces', but mrouted knows about the VIF table, etc.
1999-01-11 21:31:03 +00:00
thorpej
9d996b9e4e
Adjust for the new IP-IP input path.
1999-01-11 21:28:28 +00:00
thorpej
9f9be750f6
Separate out the IP-in-IP implementation from the GRE code. This cleans
...
up the interface to ip_mroute.c somewhat, and properly separates IP-IP
from GRE. (They are similar, but they are different protocols, and should
not be implemented in the same place.)
1999-01-11 21:26:53 +00:00
thorpej
5f69dedb2c
ipip_input() -> mrt_ipip_input().
1998-12-22 02:51:32 +00:00
thorpej
54377d1212
Simplify the tunnel lookup routine.
1998-12-22 01:49:04 +00:00
thorpej
12632ebf71
Reverse the copyright-notice-swap. It went against existing practice.
1998-12-19 02:46:12 +00:00
thorpej
4f177aec90
Add a lock around the TCPCB's sequence queue, to prevent tcp_drain()
...
from corrupting the queue if called from a device's interrupt context.
Similar in nature to the problem reported in PR #5684 .
1998-12-18 21:38:02 +00:00
thorpej
ca15e01c76
Add a lock around the IP fragment reassembly queue, to prevent ip_drain()
...
from corrupting the queue if called from a device's interrupt context.
Should fix PR #5684 .
1998-12-18 21:35:11 +00:00
thorpej
93454aafc6
Delay sending if SS_MORETOCOME is set in so_state. This avoids the case
...
where the user issued a write with a length greater than MLEN but less
than MINCLSIZE, thus causing two mbufs to be used. The loop in sosend()
would then call PRU_SEND twice, causing TCP to transmit 2 packets when
it could have transmitted one.
Suggested by Justin Walker <justin@apple.com> on the freebsd-net
mailing list.
1998-12-16 00:33:14 +00:00
mrg
2f2fd097ef
remove this insanity. appeared with ipfilter 3.2.10...
1998-12-11 23:47:16 +00:00
drochner
914642e439
correction to the previous: protect against _LKM too
...
pointed out by Todd Whitesel <toddpw@best.com>
1998-12-11 11:57:33 +00:00
drochner
36b809fed6
correcton tp previous: don't try to include kernel option headers in
...
userland
fixes PR kern/6561 (Takahiro Kambe)
1998-12-11 09:15:42 +00:00
christos
ce96f9960a
defopt IPFILTER_LOG
1998-12-10 15:50:59 +00:00
christos
c7578c510a
defopt
1998-12-10 11:01:01 +00:00
mrg
a94214bdd0
add a patch from darren reed, to make ipfilter use our cksum routine.
1998-11-26 12:21:47 +00:00
sommerfe
0cdf66e377
Fragments should start with a header mbuf allocated by MGETHDR()
1998-11-25 21:13:58 +00:00
mrg
4dd9bebb58
add two more prototypes. noted missing by mjacob.
1998-11-22 23:30:36 +00:00
mrg
78db9d7d95
merge ipf 3.2.10
1998-11-22 15:17:18 +00:00
lukem
0cd1643609
if INADDR_ANY is given in in_pcbconnect(), choose the ia_addr of the first
...
interface, not the ia_broadaddr. should fix [standards/5645] and [kern/6425]
1998-11-16 05:47:19 +00:00
drochner
1658ac64a8
fix the previous: "securelevel" in kernel only
1998-11-15 17:36:19 +00:00
tls
da1c106b85
In 'highly secure' mode (securelevel >= 2), the filter lists may not be tampered with. It might be desirable to allow enabling of preset filter lists, but it seems too good a candidate for a denial-of-service attack, so we don't.
1998-11-14 07:42:37 +00:00
lukem
cc41dfe747
simplify test in in_pcbbind() for setting wild=1; no need to check if
...
((so->so_proto->pr_flags & PR_CONNREQUIRED) == 0 ||
(so->so_options & SO_ACCEPTCONN) == 0)
since the latter is always true, so the former test in unnecessary.
from `TCP/IP Illustrated, Volume 2', W. Richard Stevens, p 730.
1998-11-13 10:50:10 +00:00
thorpej
0e3a0a7f80
Once a fragmented IP packet has been reassembled, recompute the packet
...
length before passing it up the stack. From FreeBSD.
1998-11-13 03:24:22 +00:00
ws
ede30e2813
Fix a buglet when looking up an interface for multicast:
...
Zero out the routing structure before calling the route lookup code
in order to correctly match addresses.
1998-10-26 17:31:01 +00:00
matt
3ad026ac87
vax -> __vax__ (and mips to __mips__ in ultrix_misc.c)
1998-10-20 01:46:27 +00:00
kim
cd7e3136ad
Use ETHERTYPE_ATALK instead of ETHERTYPE_AT. The former seems more common.
...
Our other constants also use "ATALK".
Added many new ETHERTYPE constants to sys/net/ethertypes.h, including the
ones from libpcap and tcpdump "ethertype.h" files.
1998-10-13 02:34:31 +00:00
thorpej
14f5ac9081
Use the pool allocator for ipflow entries.
1998-10-08 01:41:45 +00:00
thorpej
974aa74abd
Use the pool allocator for ipqent structures.
1998-10-08 01:19:25 +00:00
thorpej
588ccb2d75
Fix some typos in comments, and clean up some whitespace.
1998-10-07 23:33:02 +00:00
thorpej
6cfb33b4e4
Use the pool allocator for the tcpcb's TCP/IP header template.
1998-10-07 23:20:03 +00:00
matt
bf4e491879
Fix boolean dyslexic test. Duh!
1998-10-06 00:41:13 +00:00
matt
8e8f38e0f2
Add a sysctl for newreno (default to off).
1998-10-06 00:20:44 +00:00
lukem
a1ea50ee45
* in_pcblookup_port(): deprecate INPLOOKUP_WILDCARD and flags in favour
...
of a lookup_wildcard arg; simplifies the logic a bit.
* when assigning ephemeral ports in in_pcbbind(), always call
in_pcblookup_port() with lookup_wildcard=1, so that ephemeral port
allocation on sockets with SO_REUSEADDR set won't potentially bind to a
port in use by something else (principle of least surprise).
1998-10-05 14:33:14 +00:00
matt
25054b5cf7
Adapt the NEWRENO changes from the UCSB diffs of BSDI 3.0's TCP
...
to NetBSD. Ignore the SACK & FACK stuff for now.
1998-10-04 21:33:52 +00:00
kleink
c68106edad
Use #error instead of causing a parse error.
1998-10-02 21:21:04 +00:00
drochner
5ddf423985
print reason for arplookup() failure (ala FreeBSD)
1998-10-01 11:04:24 +00:00
tls
c4730d65cf
Switch order of TNF and UCB copyrights so UCB copyright is first; this seems more appropriate since UCB wrote the original code, after all.
1998-09-30 21:52:24 +00:00
hwr
eaccb9cd8d
Start supporting IPPROTO_MOBILE (55) encapsulation. This is yet
...
another tunneling protocol used by the Mobile-IP people. See RFC 2004
for this.
1998-09-30 05:59:27 +00:00
christos
e74ca32804
SIOCGIFALIAS should not be restricted to the superuser.
1998-09-28 12:32:43 +00:00
mycroft
4a000a54e6
Fix a typo (not mine) in a comment.
1998-09-19 04:34:34 +00:00
mycroft
04ef3bf88d
If we're in LISTEN state and all of RST, SYN and ACK are clear, send a RST.
1998-09-19 04:32:51 +00:00
mycroft
31347e4671
Always send a 0 window with a RST. Suggested by Darren Reed.
1998-09-19 04:02:52 +00:00
hwr
cf70cc28c7
Typo. :(
1998-09-14 21:15:56 +00:00
hwr
517139017e
Some additions.
...
And IDPR-CMTP is 38 not 39 according to IANA.
1998-09-14 21:09:51 +00:00
hwr
366b9c4515
Add a gre tunnel pseudo network device. Gre = generic route encapsulation.
...
This device shows up like any other network interface and can be used to
tunnel L3 protocols as e.g. IP over IP.
1998-09-13 20:27:47 +00:00
christos
66dd35d72c
Fix copyright spacing and 'Van' -> 'van' for consistency.
1998-09-13 15:45:40 +00:00
tv
235fc6a6a9
egcs {brace} warning fix
1998-09-10 19:53:28 +00:00
mouse
b95116821c
Create tcp.keepidle, tcp.keepintvl, tcp.keepcnt, tcp.slowhz sysctls.
1998-09-10 10:46:03 +00:00
thorpej
9fd57e8917
Make a diagnostic printf more sensible, PR #5951 , Heiko W. Rupp.
1998-09-09 04:57:18 +00:00
thorpej
4dbfe05f1f
Use an algorithm similar to that in tcp_notify() to determine if
...
syn_cache_unreach() should remove the entry, or just continue on.
Algorithm is to only remove the entry if we've had more than one unreach
error and have retransmitted 3 or more times. This prevents the following
scenario, as noted in PR #5909 (PR from Ty Sarna, scenario from
Charles Hannum):
* Host A sends a SYN.
* Host A retransmits the SYN.
* Host B gets the first SYN and sends a SYN-ACK.
* Host B gets the second SYN and sends a SYN-ACK.
* One of the SYN-ACK bounces with an
ICMP unreachable, causing the `SYN cache' entry to be
removed with no notification.
* Host A receives the other SYN-ACK, sends an ACK, and goes to
ESTABLISHED state.
Should fix PR #5909 .
1998-09-09 01:32:27 +00:00
christos
0f024deb52
Add SIOCGIFALIAS
1998-09-06 17:52:01 +00:00
kleink
bb4f7768e4
Protect _XOPEN_SOURCE against sysctl MIB identifiers.
1998-09-05 19:03:25 +00:00
mycroft
e2cb6dad8d
Make the randomized part of the ISS 24 bits.
1998-09-04 22:34:51 +00:00
mycroft
2f501074f8
Fix a couple of bogons related to tcp_new_iss():
...
* Don't add tcp_iss_seq when creating a new ISS from TIME-WAIT state.
* Do the clock increment even when using the rnd device.
1998-09-04 22:29:54 +00:00
scottr
e3e7e1673f
Fix the NEXT_IA_WITH_SAME_ADDR macro introduced in 1.27: it was finding
...
the first in_ifaddr structure with a different internet address! Reverse
the sense of the test. Spotted by and fix from Eric Haszlakiewicz.
1998-08-14 06:57:54 +00:00
mrg
4a75265273
defopt PFIL_HOOKS.
1998-08-09 08:58:18 +00:00
thorpej
833061914a
Use the pool allocator for tcpcbs.
1998-08-02 00:36:19 +00:00
thorpej
d319e4b419
Use the pool allocator for syn_cache entries.
1998-08-02 00:35:51 +00:00
thorpej
47e9dcf841
Use the pool allocator for inpcbs.
1998-08-02 00:35:31 +00:00
tls
31d0752b99
change IN_IFADDR_HASH_SIZE to 509, which actually uses no more space than 293 due to rounding up to nearest power of two in hashinit.
1998-07-29 05:18:54 +00:00
pk
84840da908
in_pcballoc(): we can't afford to wait for memory.
1998-07-23 08:24:33 +00:00
mycroft
cca4e566a9
Implement a better fix for the `gratuitous FIN' problem, as
...
mentioned on tcp-impl but with a bit more commentary.
1998-07-21 10:46:00 +00:00
thorpej
3a9ed00799
Document that we are more conservative after doing MTU discovery than the
...
suggestion in draft-floyd-incr-init-win-03. Rather than scaling cwnd back
by the ratio of new segment size to old segment size, we perform a slow start
using the Initial Window, computed with the new segment size.
1998-07-17 23:09:58 +00:00
thorpej
0f909866c0
Clarify that we're using the Loss Window when we receive a source quench.
1998-07-17 23:02:38 +00:00
thorpej
fa20f24cd9
Add a comment wrt. a current issue w/ CWM.
1998-07-17 23:00:02 +00:00
thorpej
a3f4316cba
Clarify that we are using the Loss Window if a retransmission occurred
...
during the three-way handshake.
1998-07-17 22:58:56 +00:00
thorpej
830879a809
Comment where the Restart Window is computed, and in the non-CWM case,
...
make sure it never _increases_ cwnd.
1998-07-17 22:52:01 +00:00
thorpej
1c4ff0a086
Comment where we use the Loss Window.
1998-07-17 22:18:49 +00:00
sommerfe
69b1b4758d
Fix PR5559: if fast-forwarding, DF set, and packet too large, send ICMP error..
1998-07-17 00:35:23 +00:00
sommerfe
534520d815
Fix PR5508: ipfil cut-through forwarding causes panic
1998-07-17 00:28:00 +00:00
tls
deac3540de
Put original hash function back. It wastes a little bit of space, but is much more even -- think of the case of a web service provider, some of whose customers end up getting 'inferior service' because they're on addresses that happen to be out at the end of a hash chain. With webservers with thousands of addresses, this is a real issue. If the wasted space is a big deal, we could pick a prime number that's slightly _less_ than a power of two...
1998-07-16 06:45:09 +00:00
thorpej
389da54091
Garbage collect `imp' and `hy'. We don't have the rest of the code, and
...
it's not like anyone is ever going to be using either of them.
1998-07-15 17:39:20 +00:00
veego
97ab1bd53b
Resolve conflicts from the import.
1998-07-12 15:23:59 +00:00
mycroft
3a64270ca6
Back out the change from TCP/IP vol 2, in revision 1.7, which removed TH_FIN
...
from the output flags for CLOSING state. There is no harm in retransmitting
the FIN, and this change has unexpected side effects that break simultaneous
close behaviour.
1998-07-09 05:49:56 +00:00
sommerfe
065cac9798
Delete bogus (void) cast of m_freem (which is already a void function..)
1998-07-07 00:04:59 +00:00
jonathan
b37021c1a1
defopt NATM.
1998-07-05 22:48:05 +00:00
jonathan
9bf2ba0928
Garbage-collect ``needs-flag'' from attributes ether, fddi, arc:
...
NETHER, NFDDI, NARC are not used anywhere. Remove #include "ether.h",
which had no effect.
Removes clash with "options NATM" for native-ATM network protocol stack.
1998-07-05 22:29:51 +00:00
jonathan
011f2bda08
defopt NS, NSIP.
1998-07-05 06:49:00 +00:00
jonathan
5c0c5dd0b4
defopt ISO TPIP.
1998-07-05 04:37:35 +00:00
jonathan
f2a2327e0a
defopt EON.
1998-07-05 01:06:49 +00:00
jonathan
3751946b97
defopt INET, NETATALK.
1998-07-05 00:51:04 +00:00
jonathan
466e784ee1
defopt DDB.
1998-07-04 22:18:13 +00:00
thorpej
8cfe8959a6
Fix TCPS_HAVERCVDFIN() to actually catch all TCP states in which a FIN
...
has been received (CLOSE_WAIT, CLOSING, LAST_ACK, and TIME_WAIT).
From David Borman <dab@bsdi.com>.
1998-07-03 05:39:56 +00:00
is
0ca02c68a7
Thinko in last fix: we have to actually check each address for a copy on
...
our ifp, else we might fail for some strange configurations.
1998-07-02 14:00:39 +00:00
is
d8b8a41918
The rewrite of if_arp.c to work with the hashed interface address lists
...
(1.44) missed a test for the right interface, making some machines answer
to some bogus arp requests (like for WHO-HAS 127.0.0.1).
The quick patch in 1.46-1.47 does not work for so-called "unnumbered"
interfaces, that is, (point-to-point) interfaces that share their local
address with another (e.g., the Ethernet) interface.
We add a macro to in_var.h, to step (in the current implementation) through
the hash chain and fine more entries with the same address, and use that
in if_arp.c to find one which belongs to our interface.
1998-07-02 11:39:56 +00:00
tls
b0d2c08b6b
Fix buglet where we might respond to arp on wrong interface.
1998-06-25 20:47:48 +00:00
cgd
651b44e211
Rework the way kernel include files are installed. In the new method,
...
as with user-land programs, include files are installed by each directory
in the tree that has includes to install. (This allows more flexibility
as to what gets installed, makes 'partial installs' easier, and gives us
more options as to which machines' includes get installed at any given
time.) The old SYS_INCLUDES={symlinks,copies} behaviours are _both_
still supported, though at least one bug in the 'symlinks' case is
fixed by this change. Include files can't be build before installation,
so directories that have includes as targets (e.g. dev/pci) have to move
those targets into a different Makefile.
1998-06-12 23:22:30 +00:00
sommerfe
a90d5cd12e
Truncate mbufs to the correct length before forwarding; fixes pr5560
1998-06-10 00:47:57 +00:00
thorpej
b22946827d
Add a comment explaining why we do _not_ ACK data that might accompany
...
a SYN (avoidance of a DoS attack).
1998-06-02 18:33:02 +00:00
thorpej
c296923d2f
Loss window MUST be one segment, per draft-floyd-incr-init-win-03.
1998-06-02 17:22:26 +00:00
thorpej
edc01ec330
In addition to the IP flow hash table, put the flows on a list. The table
...
is used for fast lookup, the list for traversal of all flows. Also, use
PRT timers.
1998-06-02 15:48:03 +00:00
thorpej
837a8317b5
Eek, we were wasting almost half of the in_ifaddr hash space by modulo'ing
...
with IN_IFADDR_HASH_SIZE. Instead, AND with the hash mask computed by
hashinit().
1998-06-01 00:50:07 +00:00
thorpej
08b5a4ecb8
Protect the ipflow_reap() call with splsoftnet.
1998-06-01 00:39:37 +00:00
cgd
dd8ed56342
Another demonstration that when you're converting variables from 'long's
...
to fixed 32-bit integers, you have to exercise care.
1998-05-31 19:39:13 +00:00
veego
6250554a65
Fix compiler warnings: Add missing ()'s.
1998-05-29 20:28:17 +00:00
veego
630030601c
Fix some compiler warnings: Missing prototype and ()'s.
1998-05-29 20:27:18 +00:00
veego
a4c89e3e2e
Resolve conflicts from the import of IPFilter 3.2.7.
1998-05-29 20:24:36 +00:00
matt
c0a1601f95
Change arp so its console log messages print out IP addresses in
...
dotted quad format instead of hex.
1998-05-29 15:34:24 +00:00
thorpej
f555f6d93f
Fix OBOB in IP timestamp option processing, as noted in FreeBSD PR 6738,
...
from Jennifer Dawn Meyers <jdm@enteract.com>.
1998-05-24 20:14:53 +00:00
matt
f070ddb8ed
Move the ppcb pointer towards the front of the structure so that it and the
...
pcb chain pointers can possibly be in the same cache line.
1998-05-18 17:10:37 +00:00
matt
1b2b1d801b
Fix two bugs.
1998-05-18 17:08:56 +00:00
veego
82423e3d01
Resolve conflicts
1998-05-17 16:50:15 +00:00
kml
dd5ed34b88
Changed initialization of peermss to ensure that it didn't have
...
the TCP and IP options lengths removed from it -- the IP options can
change over the course of a connection...
1998-05-12 21:45:51 +00:00
thorpej
c5fc2e9acd
Back out previous. This problem was already fixed in a different way.
1998-05-11 23:13:40 +00:00
matt
53b04a8d3c
Let usr.sbin/tcpdump build again.
1998-05-11 23:09:35 +00:00
thorpej
49573284f5
Make sure a timer is marked "disarmed" once it has expired.
1998-05-11 20:52:18 +00:00
thorpej
5596fe2614
Nuke TUBA per my note to tech-net; there's no reason to keep it around.
1998-05-11 19:57:23 +00:00
kml
1216b9a560
Change comments on tcp_mss_to_advertise to match actual arguments
1998-05-07 22:30:23 +00:00
thorpej
ce3d776874
Rework the syn cache code somewhat:
...
- Don't use home-grown queue manipulation. Use <sys/queue.h> instead. The
data structures are a little larger, but we are otherwise wasting the
memory chunk anyway (we're already a 64-byte malloc bucket).
- Fix a bug in the cache-is-full case: if the oldest element removed from
the first non-empty bucket was the only element in the bucket, the
bucket wouldn't be removed from the bucket cache, causing queue corruption
later.
- Optimize the syn cache timers by using PRT timers rather than home-grown
decrement-and-propagate timers.
This code is now a fair bit smaller, and significantly easier to read
and understand.
1998-05-07 01:37:27 +00:00
thorpej
dc49b0342e
Define all TCP timers in terms of PRT timers.
1998-05-07 01:30:46 +00:00
thorpej
34e34c985a
Use the monotonically increasing slow timer timestamp provided by
...
the protocol dispatch layer for TCP timers. This saves having to
modify a potentially large number of timer values (which were shorts,
and expanded to ... a lot of code on the Alpha).
1998-05-06 01:24:38 +00:00
thorpej
1ffa60ac01
Use macros from tcp_timer.h to manipulate TCP timers, so that their
...
implementation can be changed easily.
1998-05-06 01:21:20 +00:00
matt
36eac04cc0
Default IP flow to being enabled. Add a sysctl to control the maximum
...
number of flows (net.inet.ip.maxflows). If set to 0, will disable fast
path forwarding.
1998-05-04 19:24:53 +00:00
thorpej
447384d6b8
- kern/5380 (Dennis Ferguson): fix incremental IP header checksum.
...
- kern/5381 (Dennis Ferguson): check IP header checksum in fast forward
code.
- In ipflow_slowtimo(), if no IP flows are in use, don't bother checking
all of the hash buckets.
1998-05-04 05:46:04 +00:00
thorpej
e44c4fb7d3
Once again, move a declaration for the benefit of TUBA (grumble).
1998-05-03 19:54:56 +00:00
thorpej
b9fc258065
Oops, move a variable declaration so TUBA won't lose.
1998-05-02 04:23:05 +00:00
thorpej
b71e4ddf4c
Reintroduce the immediate ACK-on-PUSH behavior removed in revision 1.47,
...
but make the decision to do this dependent on the sysctl variable
net.inet.tcp.ack_on_push, which is disabled by default.
1998-05-02 04:21:58 +00:00
thorpej
e1934b4c36
Correct a comment related to Congestion Window Monitoring.
1998-05-02 01:00:24 +00:00
thorpej
be12c489b4
Garbage-collect.
1998-05-01 18:31:12 +00:00
thorpej
77af553e79
If packets are passed through IP Filter at all, don't allow fast-forward
...
flow entries to be created for them.
Eventually, IP Filter should be extended to allow IP src/dst pairs to
be specified as "fast forward OK".
1998-05-01 03:28:14 +00:00
thorpej
4452bc9a21
Allow packet filters to prevent a packet from creating a fast-forwarding
...
flow, by setting the "can fast forward" flag in the packet header, and
giving a chance for filters to clear the flag. If the flag is still
set after the filters have given it a chance, the packet will be used
to create a fast-forward flow entry.
1998-05-01 03:23:24 +00:00
kml
e173e7a084
Remove bogus black hole discovery code
1998-05-01 01:15:55 +00:00
thorpej
ce40806e29
In the CWM code, don't use the Floyd initial window computation as
...
the burst size allowed, but rather a fixed number of packets, as
described in the Internet Draft. Default allowed burst is 4 packets,
per the Draft.
Make the use of CWM and the allowed burst size tunable via sysctl.
1998-04-30 18:27:20 +00:00
thorpej
e81920fa23
Make tcp_compat_42 a sysctl option.
1998-04-30 17:55:27 +00:00
thorpej
7e05be912b
Need <net/route.h>
1998-04-30 17:47:26 +00:00