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The nif callback functions (nif_open) now instead cause an
'nosup' exception if called (instead of badarg).
The basic type uint16_t, uint32_t and int32_t (C99) replaced
"own" (that is, defined by "us") types Uint16, Uint32 and
Sint32.
The point of this is that our Windows build system seems to
be a bit lacking when it comes to types...
Removed "some stuff" that was if-defed. Different solution
when win32 support for sockets has been improved.
Make sure the socket_*.c util modules are not included
in the building for windows.
OTP-15526
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Its now possible to set a rcvbuf (otp) option value
of {N :: pos_integer(), BufSz :: pos_integer()}.
This value is used for type stream and protocol tcp,
when calling the function recv with length = 0 (zero).
The second value, BufSz, is the actual size of the receive
buffer used when calling the socket recv function, and
the first value, N, is the max number of possible reads
that will be performed (at most), even if there is more
data to read. This is limit the effect of DoS attacks.
OTP-15497
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Add a way to *get* the file descriptor (fd) of a socket.
Useful mostly for debugging.
OTP-15528
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Previously the "message interface" between the functions in
socket.erl and the nif-code (socket_nif.c) was "ad hoc".
This has now been changed so that we have a unified message
{'$socket', SockRef | undefined, Tag, Info}
This also has the added advantage of preparing the code for
when we start using the new select-fucntions (with which
its possible to specify your own message). This will be used
in order to get around our eterm "leak" (we will use a simple
counter, maintained in the nif, instead of the [Recv|Send|Acc]Ref
we generate in the erlang code today.
OTP-14831
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Added ping-pong test cases for UDP, small and medium, using
the sendto/recvfrom and sendmsg/recvmsg functions.
OTP-14831
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The sendmsg function attempts to send *one message*. But
its possible for the underlying software to fail to send
the *entire* message. So, instead of retrying itself, as
send does, the sendmsg function will now instead return
with {ok, Remaining}, leaving it to the caller to decide
what to do.
OTP-14831
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The send and recv test case triggered a two bugs. One was
that there was no re-selecting when only a portion of the data
was received (which meant that we stopped reading).
Also, the wrong 'current' (writer) was reset when demonitor
current reader after a successful read (which meant that
future readers would never have been monitored).
OTP-14831
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Added preliminary documentation for the function socket:supports/0,1,2,3.
It still does not generate proper doc for supports/3 (the last
arg, Opt, don't get a type).
OTP-14831
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The supports function now also handles testing for SCTP and
IPv6 support. Basic test at the moment, but better then nothing.
OTP-14831
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Add the options for level socket (full), ip and ipv6 to the
supports function.
OTP-14831
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Added the first three socket (level socket) options to the
supports function(s).
OTP-14831
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Internally in the socket module we accessed domain, type and
protocol for an open socket. But as it turns out, domain (family)
is not actually available as a socket option on all platforms.
FreeBSD in this case. So, since we store these values in the socket
descriptor anyway, we switch to use these values for our internal
use instead.
OTP-14831
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Add support for otp level socket options rcvbuf, rcvctrlbuf and
sndctrlbuf. These options define default sizes for these
buffers.
The 'rcvbuf' is used when receiving messages when calling
the recv, recvfrom and recvmsg functions.
The 'rcvctrlbuf' is used for the control message header info
when calling the recvmsg function.
The 'sndctrlbuf' is used for the control message header info
when calling the sendmsg function.
OTP-14831
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Added proper send timeout handling.
Made use of the enif_select(mode = cancel) feature. Each
time a timeout expires, the "active" send (the surrent write
select) has to be cancelled.
OTP-14831
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Added proper connect and accept timeout handling.
Made use of the enif_select(mode = cancel) feature. Each
time a timeout expires, the previous operation (connect or accept)
has to be cancelled (actually its the select operation that has
to be cancelled). Only partial implementation of cancel for now
(connect and accept). More to follow...
OTP-14831
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Some cleanup and also added a guard to sendmsg to ensure
that only ctrl (cmsg hdr) with actual content will be
"sent down".
OTP-14831
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Updated the (send) cmsghdr type and the handling of it
(in the nif code). Still not tested!
Removed the is_loaded nif function.
Tried to get fix the doc build problem (socket.erl *i think*),
which causes socket.html generation to fail with:
"cannot find module exporting type"
To solve this I tried to run dialyzer on preloaded, and ran into
problems with enc_setopt_value. Update various specs and types
to "solve" this (which did not work).
Updated the nif-stub functions to make dialyzer happy.
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Added support for (recvmsg) control message ipv6_pktinfo, for
level = ipv6 and type = pktinfo. This is enabled by setting the
socket option: recvpktinfo for level ipv6.
Not yet tested!
OTP-14831
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Add more debug printouts for the new sendmsg. Also added
new (erlang) types with doc.
OTP-14831
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Added function sendmsg/2,3,4. Actually worked on the first try.
Something must be wrong...
Still no supported cmsghdr's (only support headers where the
data part is already a binary, which therefor does not require
any processing). So if the cmsghdrs actually work is unclear.
OTP-14831
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Added processing or more cmsg headers (for more options).
Now (also) supports: socket:timestamp.
Also various fixes and cleanups.
For some reason calling getopt(Sock, 0, {13, int}) (or similar)
fails with badarg even though the nif-function (nif_getopt) actually
returns a valid value (for instance: {ok, 0}).
OTP-14831
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Added preliminary support for function recvmsg. At the moment
this only works on *nix (Windows has another function, WSARecvMsg,
which has a slightly different API).
Also we have "no" cmsg decode at the moment (just level and type).
OTP-14831
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Added support for ip level socket option SENDSRCADDR.
This option requires sendmsg to actually use, so we
cannot test this fully at the moment.
OTP-14831
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Added support for ip level socket option RECVORIGDSTADDR.
This option requires recvmsg to actually use, so we cannot
test this fully at the moment (although both set and get works).
OTP-14831
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Updated the socket type. No longer store "stuff" that can
be retrieved by other means (domain, type and protocol).
OTP-14831
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Added support for ip level socket option RETOPTS.
OTP-14831
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Added support for ip level socket option TRANSPARENT.
OTP-14831
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Added support for ip level socket option PKTINFO.
This option requires sendmsg and/or recvmsg to actually use,
so we cannot test this fully at the moment (although both set
and get works).
OTP-14831
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Added support for ip level socket option HDRINCL.
As this option is raw only, it has not yet been tested!
OTP-14831
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Added support for ip level socket option MSFILTER.
This option has not been tested *in any way*...
OTP-14831
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Added support for the IPv6 socket option RECVERR.
To actually make use of this option, we need the recvmsg
function, which we don't have yet. Baby steps.
OTP-14831.
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Added support for the IP socket option RECVERR.
To actually make use of this option, we need the recvmsg
function, which we don't have yet. Baby steps.
OTP-14831.
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Added support for the IPv6 socket option ADDRFORM.
Only allowed for IPv6 sockets that are connected and bound to a
v4-mapped-on-v6 address.
OTP-14831.
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Added support for the IPv6 socket option ROUTER_ALERT.
Only supported for raw sockets.
OTP-14831.
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Added support for the IPv6 socket option UNICAST_HOPS.
OTP-14831.
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Added support for the IPv6 socket option(s) FLOWINFO.
The option returns with einval when calling setsockopt,
so either you need to be a privileged user to update, or its not
actually possible to update this option (even though it says
nothing about that in the man page. It only talks about set).
This is the same behaviour as with DSTOPTS.
Needs furher checking.
OTP-14831.
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Added support for the IPv6 socket option(s) DSTOPTS.
The option returns with einval when calling setsockopt,
so either you need to be a privileged user to update, or its not
actually possible to update this option (even though it says
nothing about that in the man page. It only talks about set).
This is the same behaviour as with RTHDR and HOPLIMIT.
On FreeBSD, it says that HOPOPTS requires superuser privileges.
Needs furher checking.
OTP-14831.
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Added support for the IPv6 socket option(s) AUTHHDR and HOPOPTS.
Its possible that the option is AUTHHDR is obsolete. It says so in
the include files and when trying to get it (getsockopt) it returns
with enoprotoopt.
The option HOPOPTS returns with einval when calling setsockopt,
so either you need to be a privileged user to update, or its not
actually possible to update this option (even though it says
nothing about that in the man page. It only talks about set).
This is the same behaviour as with RTHDR and HOPLIMIT.
On FreeBSD, it says that HOPOPTS requires superuser privileges.
Needs furher checking.
OTP-14831.
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Added support for the IPv6 socket option RTHDR.
On FreeBSD this option requires superuser privileges to update.
There is no mention of this on linux, but its still not possible
to update (einval), so I assume that its the same there.
OTP-14831.
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Added support for the IPv6 socket option RECVPKTINFO.
This option is called PKTINFO on FreeBSD, so that value
will also be accepted.
OTP-14831.
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Added support for the IPv6 socket option MULTICAST_LOOP.
OTP-14831.
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Added support for the IPv6 socket option MULTICAST_IF.
OTP-14831.
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Added support for the IPv6 socket option MULTICAST_HOPS.
OTP-14831.
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Updated and added types for the sendmsg and recvmsg functions.
OTP-14831
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Added support for ip level socket option RECVOPTS.
OTP-14831
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Added support for ip level socket option FREEBIND.
Note that there is an option available on FreeBSD called
IP_BINDANY, which seems to have similar properties (FREEBIND
is *not* available on FreeBSD). There are some restrictions
for this option though (which is not mentioned in the Linux
man page).
OTP-14831
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Added support for socket level socket option TIMESTAMP.
OTP-14831
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Added support for socket level socket option RCVLOWAT and SNDLOWAT.
These are both a little strange, at least on Linux. See the man
pages for more info. For instance, sndlowat cannot be set on Linux.
OTP-14831
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