long been superseded by the RFC3390 initial CWND sizing.
Also remove the remnants of TCP_METRICS_CWND which used the
TCP hostcache to set the initial CWND in a non-RFC compliant
way.
MFC after: 1 week
This fixes a compiler warning at WARNS=6 when including the header files
as follows:
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
To run a /31 network, participating hosts MUST drop support
for directed broadcasts, and treat the first and last addresses
on subnet as unicast. The broadcast address for the prefix
should be the link local broadcast address, INADDR_BROADCAST.
- Remove ia_net, ia_netmask, ia_netbroadcast from struct in_ifaddr.
- Remove net.inet.ip.subnetsarelocal, I bet no one need it in 2011.
- fix bug when we were not forwarding to a host which matches classful
net address. For example router having 192.168.x.y/16 network attached,
would not forward traffic to 192.168.*.0, which are legal IPs in
CIDR world.
- For compatibility, leave autoguessing of mask based on class.
Reviewed by: andre, bz, rwatson
significant ones.
This has changed in the latest version of the socket API ID and
provides backwards compatibility and gets it in syn with the
usage of the IP_TOS socket option.
MFC after: 3 days.
route where the destination IP and the gateway IP is the same. This
special case handling is only meant for backward compatibility reason.
The last commit introduced a bug in the route check logic, where a
valid special case is treated as an error. This patch fixes that bug
along with some code cleanup.
Suggested by: gleb
Reviewed by: kmacy, discussed with gleb
MFC after: 1 day
struct route was changed in
http://svn.freebsd.org/changeset/base/225698
and since then SCTP support was broken.
This needs to be MFCed to stable/9 to unbreak SCTP support in 9.0
MFC after: 3 days.
address if that interface does not support ARP. Otherwise the
system will generate error messages unnecessarily due to the missing
entry.
PR: kern/159602
Submitted by: pluknet
MFC after: 3 days
address is being deleted. Only the last reference holder deletes the
loopback route. All other delete operations just clear the IFA_RTSELF
flag.
PR: kern/159601
Submitted by: pluknet
Reviewed by: discussed on net@
MFC after: 3 days
when reaching the zone limit of reassembly queue entries.
When the zone limit was reached not even the missing segment
that would complete the sequence space could be processed
preventing the TCP session forever from making any further
progress.
Solve this deadlock by using a temporary on-stack queue entry
for the missing segment followed by an immediate dequeue again
by delivering the contiguous sequence space to the socket.
Add logging under net.inet.tcp.log_debug for reassembly queue
issues.
Reviewed by: lsteward (previous version)
Tested by: Steven Hartland <killing-at-multiplay.co.uk>
MFC after: 3 days
raw IP sockets. It was deducted in ip_input() in preparation for
protocols interested only in the payload.
On raw sockets the IP header should be delivered as it at came in
from the network except for the byte order swaps in some fields.
This brings us in line with all other OS'es that provide raw
IP sockets.
Reported by: Matthew Cini Sarreo <mcins1-at-gmail.com>
MFC after: 3 days
inpcb object.
Skip the TCP_SIGNATURE check in that case as it is consistent with the
output path (no TCP_SIGNATURE for outcoming packets in TIMEWAIT state)
and also because for TIMEWAIT state the verify may be less effective.
Sponsored by: Sandvine Incorporated
Reported by: rwatson
No objections by: rwatson
MFC after: 3 days
same prefix. Since a single route entry is installed for the prefix
(without RADIX_MPATH), incoming packets on the interfaces that are not
associated with the prefix route may trigger an error message about
unable to allocation LLE entry, and fails L2. This patch makes sure a
valid route is present in the system, and allow the aforementioned
condition to exist and treats as valid.
Reviewed by: bz
MFC after: 5 days
build the ip_fw_pfil.c hooks and ipfw even in case of no-ip under the
assumption that the private L2 hook (which hopefully eventually will be a
pfil hook as well) can still be useful.
Allow building the module without inet as well.
Glanced at by: jhb
MFC after: 3 days
options defined in the kernel config. This more closely matches the
behavior of other modules which inherit configuration settings from the
kernel configuration during a kernel + modules build.
Reviewed by: luigi
Approved by: re (kib)
MFC after: 1 week
route with the same prefix is searched for as a replacement. The
current code did not bypass routes that have non-operational
interfaces. This patch fixes that bug and will find a replacement
route with an active interface.
PR: kern/159603
Submitted by: pluknet, ambrisko at ambrisko dot com
Reviewed by: discussed on net@
Approved by: re (bz)
MFC after: 3 days
and the maximum TCP send and receive buffer limits from 256kB
to 2MB.
For sb_max_adj we need to add the cast as already used in the sysctl
handler to not overflow the type doing the maths.
Note that this is just the defaults. They will allow more memory
to be consumed per socket/connection if needed but not change the
default "idle" memory consumption. All values are still tunable
by sysctls.
Suggested by: gnn
Discussed on: arch (Mar and Aug 2011)
MFC after: 3 weeks
Approved by: re (kib)
Distinguish IPv4 and IPv6 addresses and optional port numbers in
user space to set the option for the correct protocol family.
Add support in the kernel for carrying the new IPv6 destination
address and port.
Add support to TCP and UDP for IPv6 and fix UDP IPv4 to not change
the address in the IP header.
Add support for IPv6 forwarding to a non-local destination.
Add a regession test uitilizing VIMAGE to check all 20 possible
combinations I could think of.
Obtained from: David Dolson at Sandvine Incorporated
(original version for ipfw fwd IPv6 support)
Sponsored by: Sandvine Incorporated
PR: bin/117214
MFC after: 4 weeks
Approved by: re (kib)
more fragments flag off so that offset == 0 checks work properly.
PR: kern/145733
Submitted by: Matthew Luckie (mjl luckie.org.nz)
MFC after: 2 weeks
X-MFC with: r225032
Approved by: re (kib)
then terminate the loop as we will not find any further headers and
for short fragments this could otherwise lead to a pullup error
discarding the fragment.
PR: kern/145733
Submitted by: Matthew Luckie (mjl luckie.org.nz)
MFC after: 2 weeks
Approved by: re (kib)
packet is a/the first fragment or not. For IPv6 we have added the
"more fragments" flag as well to be able to determine on whether
there will be more as we do not have the fragment header avaialble
for logging, while for IPv4 this information can be derived directly
from the IPv4 header. This allowed fragmented packets to bypass
normal rules as proper masking was not done when checking offset.
Split variables to not need masking for IPv6 to avoid further errors.
PR: kern/145733
Submitted by: Matthew Luckie (mjl luckie.org.nz)
MFC after: 2 weeks
Approved by: re (kib)
translation technology involved (and that section is suggested to
be removed by Errata 2843), single packet fragments do not harm.
There is another errata under discussion to clarify and allow this.
Meanwhile add a sysctl to allow disabling this behaviour again.
We will treat single packet fragment (a fragment header added
when not needed) as if there was no fragment header.
PR: kern/145733
Submitted by: Matthew Luckie (mjl luckie.org.nz) (original version)
Tested by: Matthew Luckie (mjl luckie.org.nz)
MFC after: 2 weeks
Approved by: re (kib)
While there:
* Fix a locking issue in setsockopt() of SCTP_CMT_ON_OFF.
* Fix a bug in setsockopt() of SCTP_DEFAULT_PRINFO, where the pr_value
was ignored.
Approved by: re@
MFC after: 2 months.
* Decouple the path supervision using a separate HB timer per path.
* Add support for potentially failed state.
* Bring back RTO.min to 1 second.
* Accept packets on IP-addresses already announced via an ASCONF
* While there: do some cleanups.
Approved by: re@
MFC after: 2 months.
- TCP keep* timers
- TCP UTO (adjust from what was there already)
- netmap
- route caching
- user cookie (temporary to allow for the real fix)
Slightly re-shuffle struct ifnet moving fields out of the middle
of spares and to better align.
Discussed with: rwatson (slightly earlier version)
