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This commit also adds SCTP support for --cport.
Fixes #616.
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Might be useful for other platforms as well (no effects on Linux
because the semantics of listen(2) are subtly different there).
Submitted by Matt Macy. Fixes #691.
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Namely, getsock_tcp_mss(), set_tcp_options() and iperf_test_reset().
Also fix a typo in the libiperf manual;
iperf_test_reset() was listed instead of iperf_reset_test().
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* Fix warnings about _GNU_SOURCE being redefined.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
* Fix warnings of format-specified mismatching type
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
* Simplify endianness checks
Linux can be built with too many types of C run-time library and it's
not reasonable to have to enumerate all of them, especially since at
least one of them (MUSL) goes out of its way to not be easily
detectable.
Instead, leverage autoconf better for Linux/BSD to detect either
<endian.h> or <sys/endian.h> directly.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
* Sys headers should not be included directly
There's usually a top-level header which then includes the sys/
descendent.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
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* Add configurable timeout for the setup of the control connection.
This is specified using the new --connect-timeout option, with an
integer parameter in ms. The iperf3 client will wait for this
amount of time for the setup of the control connection to the
server. If this option is not given, the OS default for TCP
connection setup is used. Specifying a smaller connection timeout
allows faster detection of a down / unresponsive iperf3 server.
The implementation uses a variation on the timeout_connect()
function from OpenBSD's netcat utility.
Fixes #216.
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https://bugzilla.kernel.org/show_bug.cgi?id=104601
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Fixes #268, suggested by @tvastri.
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candlerb-candlerb-multisend
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Note that sendfile can return -1 for EINTR whilst having already sent
partial results; these were not being counted previously.
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Note that the license remains a 3-clause BSD license; the only
license changes were to add the name of the program and to add
some punctuation.
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--cport can be specified for udp connections
Signed-off-by: Kevin Constantine <kevin.constantine@gmail.com>
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setsockopt(3) returns an error if passing 0 to this option (which
we do if no address family is specified when we bind to the wildcard
address, say by invoking "iperf3 -s" with no other options). This
is because OpenBSD explicitly does not support IPv4-mapped addresses,
so even though the IPV6_V6ONLY socket options exists, it only works
with a non-zero argument.
Fixes #196.
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Should fix #177, in which compilation failed on older Solaris systems
that didn't have it. This is a different approach than a patch
suggested in that issue.
Weakly regression-tested on other platforms (test this by specifying
-6, -4, or neither to the server when binding to the wildcard address,
and seeing if a client can connect with various of -6, -4, or neither).
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On CentOS 6 and MacOS, if no address family was specified, we'd
get back an IPv4 address from getaddrinfo(3), with the result that
we couldn't accept IPv6 connections in the default server configuration.
There was an earlier attempt at fixing this problem that caused
Issue #193. This change is a follow-up fix to that issue.
While here, put lots of comments around the fix so we remember
why we're doing these shenanigans.
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If specifying -B with an IPv4 literal address or with an FQDN that
resolved to an IPv4 address, but we had not explicitly specified an
address family with -4, we failed to set up the socket correctly
because we assumed binding to an IPv6 address, and instead (after some
error spewage) wound up binding to wildcard address.
The fix in this commit has multiple parts: First, if the address
family hasn't been explictly specified, don't force AF_INET6 in the
hints to getaddrinfo(3). AF_UNSPEC should generate the correct
(according to RFC 6724) behavior.
Second, iperf_reset_test() should not discard members that were passed
from command-line parameters, because that alters the behavior of the
iperf3 when it tries to recreate the listening socket. In the failure
situation described in this issue (and possibly other as well), the
value of -B gets discarded, so on subsequent attempts to set up the
listening socket it just binds to the wildcard address.
While here, fix on-line help related to the -B option to match
reality.
Note that we're not completely in compliance with RFC 6724, which
states that we should actually try all of the addresses in returned by
getaddrinfo(3), rather than just the first one.
Fixes Issue #193.
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Originally submitted by: @i2aaron
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Tested on: OpenBSD 5.4
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There's still a bunch of OS-dependent fu because every platform that
supports sendfile(2) does it differently.
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(Formerly it was just accepting IPv6.)
The problem here was that FreeBSD by default wasn't allowing IPv4
mapped addresses on IPv6 sockets, whereas other platforms
(specifically Linux and OS X) both do permit this. We tried to turn
on mapped addresses via a setsockopt(IPV6_V6ONLY) call, but this call
was broken because the level argument was incorrect. We didn't know
about this because we never checked the return value.
Fix this by providing the correct argument to setsockopt(). Add some
error checking to this and one other setsockopt() call, so we at least
don't fail silently in similar situations.
Issue: 126 (FreeBSD: iperf3 -s only accepts IPv6
connections)
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routines.
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Also added -4 flag to force IPv4.
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to a full socket.
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one is the new -Z flag.
- Fixed potential bug in net.c's Nread and Nwrite routines. If they
had ever needed to loop they would have read/written the wrong address,
due to incorrect pointer arithmetic - sizeof(void) is not 1. Fix
was to change the type of the buffer pointer to char*, which also
meant adding casts to some callers.
- Better checking for conflicts between command-line flags - now they
should no longer be order-dependent.
- Added a new -Z / --zerocopy flag, to use a "zero copy" method of
sending data, such as sendfile(2) instead of the usual write(2).
- Renumbered error enum to make inserting new ones easier.
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intervening select() calls. This increases performance quite a bit.
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functions. Cleaned up code.
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leaks.
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