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CHANGES.ISO-8859-1
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####################### V 1.7.3.4:
Corrections:
Header of xiotermios_speed() declared parameter unsigned int instead of
speed_t, thus compiling failed on MacOS
Thanks to Joe Strout and others for reporting this bug.
Thanks to Andrew Childs and others for sending a patch.
Under certain circumstances, termios options of the first address were
applied to the second address, resulting in error
"Inappropriate ioctl for device"
This affected version 1.7.3.3 only.
Test: TERMIOS_PH_ALL
Thanks to Ivan J. for reporting this issue.
Socat failed to compile when no poll() system call was found by
configure.
Thanks to Jason White for sending a patch.
Due to use of SSL_CTX_clear_mode() Socat failed to compile on old
systems with, e.g., OpenSSL-0.9.8. Thanks to Simon Matter and Moritz B.
for reporting this problem and sending initial patches.
getaddrinfo() in IP4-SENDTO and IP6-SENDTO addresses failed with
"ai_socktype not supported" when protocol 6 was addressed.
The fix removes the possibility to use service names with SCTP.
Test: IP_SENDTO_6
Thanks to Sören for sending an initial patch.
Under certain circumstances, Socat printed the "socket ... is at EOF"
multiple times.
Test: MULTIPLE_EOF
Newer parts of test.sh used substitutions ${x,,*} or ${x^^*} that are
not implemented in older bash versions.
####################### V 1.7.3.3:
Corrections:
Makefile.in did not specify dependencies of filan on vsnprintf_r.o
and snprinterr.o
Added definition of FILAN_OBJS
Thanks to Craig Leres, Clayton Shotwell, and Chris Packham for
providing patches.
configure option --enable-msglevel did not work with numbers
The autoconf mechanism for determining SHIFT_OFFSET did not work when
cross compiling.
Thanks to Max Freisinger from Gentoo for sending a patch.
Socat still depended on obsolete gethostbyname() function, thus
compiling with MUSL libc failed.
Problem reported by Kennedy33.
The async signal safe diagnostic system used FDs 3 and 4 internally, so
use of appropriate fdin or fdout led to failures.
Test: DIAG_FDIN
Problem reported by Onur Sentürk.
The socket based mechanism for passing messages and signal information
from signal handler to process could reach and kill the wrong process.
Introduces functions diag_sock_pair(), diag_fork()
Thanks to Darren Zhao for analysing and reporting this problem.
Option ipv6-join-group did not work because it was applied in the wrong
phase
Test: UDP6MULTICAST_UNIDIR
Thanks to Angus Gratton for sending a patch.
Setting ispeed and ospeed failed for some serial devices because the
two settings were applied with two different get/set cycles, Thanks to
Alexandre Fenyo for providing an initial patch.
However, the actual fix is part of a conceptual change of the termios
module that aims for applying all changes in a single tcsetaddr call.
Fixes FreeBSD Bug 198441
Termios options TAB0,TAB1,TAB2,TAB3, and XTABS did not have an effect.
Thanks to Alan Walters for reporting this bug.
Substituted cumbersom ISPEED_OFFSET mechanism for cfsetispeed() calls
With TCP6-LISTEN and the other passive IPv6 addresses the range option
just failed: due to a bug in the syntax parser and two more bugs in
the xiocheckrange_ip6() function.
The syntax has now been changed from "[::1/128]" to "[::1]/128"!
Thanks Leah Neukirchen for sending an initial fix.
For name resolution Socat only checked the first character of the host
name to decide if it is an IPv4 address. This was not RFC conform. This
fix removes the possibility for use of IPv4 addresses with IPv6, e.g.
TCP6:127.0.0.1:80
Debian issue 695885
Thanks to Nicolas Fournil for reporting this issue.
Print a useful error message when single character options appear to be
merged in Socat invocation
Test: SOCCAT_OPT_HINT
Fixed some docu typos.
Thanks to Travis Wellman, Thomas <tjps636>, Dan Kenigsberg,
Julian Zinn, and Simon Matter
Porting:
OpenSSL functions TLS1_client_method() and similar are
deprecated. Socat now uses recommended TLS_client_method(). The old
functions and dependend option openssl-method can still be
used when configuring socat with --enable-openssl-method
Shell scripts in socat distribution are now headed with:
#! /usr/bin/env bash
to make them better portable to systems without /bin/bash
Thanks to Maya Rashish for sending a patch
RES_AAONLY, RES_PRIMARY are deprecated. You can still enable them with
configure option --enable-res-deprecated.
New versions of OpenSSL preset SSL_MODE_AUTO_RETRY which may hang socat.
Solution: clear SSL_MODE_AUTO_RETRY when it is set.
Renamed configure.in to configure.ac and set an appropriate symlink for
older environments.
Related Gentoo bug 426262: Warning on configure.in
Thanks to Francesco Turco for reporting that warning.
Fixed new IPv6 range code for platforms without s6_addr32 component.
Testing:
test.sh: Show a warning when phase-1 (insecure phase) of a security
test fails
OpenSSL tests failed on actual Linux distributions. Measures:
Increased key lengths from 768 to 1024 bits
Added test.sh option -C to delete temp certs from prevsious runs
Provide DH-parameter in certificate in PEM
OpenSSL s_server option -verify 0 must be omitted
OpenSSL authentication method aNULL no longer works
Failure of cipher aNULL is not a failure
Failure of methods SSL3 and SSL23 is desired
test.sh depended on ifconfig and netstat utilities which are no longer
availabie in some distributions. test.sh now checks for and prefers
ip and ss.
Thanks to Ruediger Meier for reporting this problem.
More corrections to test.sh:
Language settings could still influence test results
netstat was still required
Suppress usleep deprecated messag
Force use of IPv4 with some certificates
Set timeout for UDPxMAXCHILDREN tests
Git:
Added missing Config/Makefile.DragonFly-2-8-2,
Config/config.DragonFly-2-8-2.h
Removed testcert.conf (to be generated by test.sh)
Cosmetics:
Simplified handling of missing termios defines.
New features:
Permit combined -d options as -dd etc.
####################### V 1.7.3.2:
corrections:
SIGSEGV and other signals could lead to a 100% CPU loop
Failing name resolution could lead to SIGSEGV
Thanks to Max for reporting this issue.
Include <stddef.h> for ptrdiff_t
Thanks to Jeroen Roovers for reporting this issue.
Building with --disable-sycls failed due to missing sslcls.h defines
Socat hung when configured with --disable-sycls.
Some minor corrections with includes etc.
Option so-reuseport did not work. Thanks to Some Raghavendra Prabhu
for sending a patch.
Programs invoked with EXEC, nofork, and -u or -U had stdin and stdout
incorrectly assigned
Test: EXEC_NOFORK_UNIDIR
Thanks to David Reiss for reporting this problem.
Socat exited with status 0 even when a program invoked with SYSTEM or
EXEC failed.
Tests: SYSTEM_RC EXEC_RC
Issue reported by Felix Winkelmann.
AddressSanitizer reported a few buffer overflows (false positives).
Nevertheless fixed Socat source.
Issue reported by Hanno Böck.
Socat did not use option ipv6-join-group.
Test: USE_IPV6_JOIN_GROUP
Thanks to Linus Lüssing for sending a patch.
UDP-LISTEN did not honor the max-children option.
Test: UDP4MAXCHILDREN UDP6MAXCHILDREN
Thanks to Leander Berwers for reporting this issue.
Options so-rcvtimeo and so-sndtimeo do not work with poll()/select()
and therefore were useless.
Thanks to Steve Borenstein for reporting this issue.
Option dhparam was documented as dhparams. Added the alias name
dhparams to fix this.
Thanks to Alexander Neumann for sending a patch.
Options shut-down and shut-close did not work.
Thanks to Stefan Schimanski for providing a patch.
There was a bug in printing readline log message caused by a misleading
indentation.
Thanks to Paul Wouters for reporting.
The internal vsnprintf_r function looped or crashed on size parameter
with hexadecimal output.
Ignore exit code of child process when it was killed by master due to
EOF
Corrected byte order on read of IPV6_TCLASS value from ancillary
message
Fixed type of the bool element in options. This had bug caused failures
e.g. of ignoreeof on big-endian systems when bool was not based on int.
On systems with predefined bool type whose size differs from int some
IPv6 and TCP options (per setsockopt()) failed.
Length of integral data in ancillary messages varies (TOS: 1 byte,
TTL: 4 bytes), the old implementation failed for TTL on big-endian
hosts.
Fixed an issue in options processing: TUN and DNS flags had failed on
big-endian systems and the NO- forms had probable never worked.
porting:
Type conflict between int and sig_atomic_t between declaration and
definition of diag_immediate_type and diag_immediate_exit broke
compilation on FreeBSD 10.1 with clang. Thanks to Emanuel Haupt for
reporting this bug.
Socat failed to compile on platforms with OpenSSL without
DTLSv1_client_method or DTLSv1_server_method.
Thanks to Simon Matter for sending a patch.
NuttX OS headers do not provide struct ip, thus socat did not compile.
Made struct ip subject to configure.
Thanks to SP for reporting this issue.
Socat failed to compile with OpenSSL version 1.0.2d where
SSLv3_server_method and SSLv3_client_method are no longer defined.
Thanks to Mischa ter Smitten for reporting this issue and providing
a patch.
configure checked for OpenSSL EC_KEY assuming it is a define but it
is a type, thus OpenSSL ECDHE ciphers failed even on Linux.
Thanks to Andrey Arapov for reporting this bug.
Changes to make socat compile with OpenSSL 1.1.
Thanks to Sebastian Andrzej Siewior e.a. from the Debian team for
providing the base patch.
Debian Bug#828550
Make Socat compatible with BoringSSL.
Thanks to Matt Braithwaite for providing a patch.
OpenSSL: Use RAND_status to determine PRNG state
Thanks to Adam Langley for providing a patch
AIX-7 uses an extended O_ACCMODE that does not fit socat's internal
requirements. Thanks to Garrick Trowsdale for providing a patch
LibreSSL support: check for OPENSSL_NO_COMP
Thanks to Bernard Spil for providing a patch
testing:
socks4echo.sh and socks4a-echo.sh hung with new bash with read -n
test.sh: stderr; option -v (verbose); FDOUT_ERROR description
improved proxy.sh - it now also takes hostnames
A few corrections in test.sh
DTLS1 test hangs on some distributions. Test is now only performed
with OpenSSL 1.0.2 or higher.
More corrections to test.sh that reveal a mistake with IPV6_TCLASS
docu:
Corrected source of socat man page to correctly show man references
like socket(2); removed obseolete entries from See Also
Docu and some comments mentioned addresses SSL-LISTEN and SSL-CONNECT
that do not exist (OPENSSL-LISTEN, SSL-L; and OPENNSSL-CONNECT, SSL
are correct).
Thanks to Zhigang Wang for reporting this issue.
Fixed a couple of English spelling and grammar mistakes.
Thanks to Jakub Wild for sending the patches.
NOEXPAND() was not resolved 2 times.
More minor docu corrections
legal:
Added contributors to copyright notices. Suggested by Matt Braithwaite.
####################### V 1.7.3.1:
security:
Socat security advisory 8
A stack overflow in vulnerability was found that can be triggered when
command line arguments (complete address specifications, host names,
file names) are longer than 512 bytes.
Successful exploitation might allow an attacker to execute arbitrary
code with the privileges of the socat process.
This vulnerability can only be exploited when an attacker is able to
inject data into socat's command line.
A vulnerable scenario would be a CGI script that reads data from clients
and uses (parts of) this data as hostname for a Socat invocation.
Test: NESTEDOVFL
Credits to Takumi Akiyama for finding and reporting this issue.
Socat security advisory 7
MSVR-1499
In the OpenSSL address implementation the hard coded 1024 bit DH p
parameter was not prime. The effective cryptographic strength of a key
exchange using these parameters was weaker than the one one could get by
using a prime p. Moreover, since there is no indication of how these
parameters were chosen, the existence of a trapdoor that makes possible
for an eavesdropper to recover the shared secret from a key exchange
that uses them cannot be ruled out.
Futhermore, 1024bit is not considered sufficiently secure.
Fix: generated a new 2048bit prime.
Thanks to Santiago Zanella-Beguelin and Microsoft Vulnerability
Research (MSVR) for finding and reporting this issue.
####################### V 1.7.3.0:
security:
Socat security advisory 6
CVE-2015-1379: Possible DoS with fork
Fixed problems with signal handling caused by use of not async signal
safe functions in signal handlers that could freeze socat, allowing
denial of service attacks.
Many changes in signal handling and the diagnostic messages system were
applied to make the code async signal safe but still provide detailled
logging from signal handlers:
Coded function vsnprintf_r() as async signal safe incomplete substitute
of libc vsnprintf()
Coded function snprinterr() to replace %m in strings with a system error
message
Instead of gettimeofday() use clock_gettime() when available
Pass Diagnostic messages from signal handler per unix socket to the main
program flow
Use sigaction() instead of signal() for better control
Turn off nested signal handler invocations
Thanks to Peter Lobsinger for reporting and explaining this issue.
Red Hat issue 1019975: add TLS host name checks
OpenSSL client checks if the server certificates names in
extensions/subjectAltName/DNS or in subject/commonName match the name
used to connect or the value of the openssl-commonname option.
Test: OPENSSL_CN_CLIENT_SECURITY
OpenSSL server checks if the client certificates names in
extensions/subjectAltNames/DNS or subject/commonName match the value of
the openssl-commonname option when it is used.
Test: OPENSSL_CN_SERVER_SECURITY
Red Hat issue 1019964: socat now uses the system certificate store with
OPENSSL when neither options cafile nor capath are used
Red Hat issue 1019972: needs to specify OpenSSL cipher suites
Default cipherlist is now "HIGH:-NULL:-PSK:-aNULL" instead of empty to
prevent downgrade attacks
new features:
OpenSSL addresses set couple of environment variables from values in
peer certificate, e.g.:
SOCAT_OPENSSL_X509_SUBJECT, SOCAT_OPENSSL_X509_ISSUER,
SOCAT_OPENSSL_X509_COMMONNAME,
SOCAT_OPENSSL_X509V3_SUBJECTALTNAME_DNS
Tests: ENV_OPENSSL_{CLIENT,SERVER}_X509_*
Added support for methods TLSv1, TLSv1.1, TLSv1.2, and DTLS1
Tests: OPENSSL_METHOD_*
Enabled OpenSSL server side use of ECDHE ciphers. Feature suggested
by Andrey Arapov.
Added a new option termios-rawer for ptys.
Thanks to Christian Vogelgsang for pointing me to this requirement
corrections:
Bind with ABSTRACT commands used non-abstract namespace (Linux).
Test: ABSTRACT_BIND
Thanks to Denis Shatov for reporting this bug.
Fixed return value of nestlex()
Option ignoreeof on the right address hung.
Test: IGNOREEOF_REV
Thanks to Franz Fasching for reporting this bug.
Address SYSTEM, when terminating, shut down its parent addresses,
e.g. an SSL connection which the parent assumed to still be active.
Test: SYSTEM_SHUTDOWN
Passive (listening or receiving) addresses with empty port field bound
to a random port instead of terminating with error.
Test: TCP4_NOPORT
configure with some combination of disable options produced config
files that failed to compile due to missing IPPROTO_TCP.
Thanks to Thierry Fournier for report and patch.
fixed a few minor bugs with OpenSSL in configure and with messages
Socat did not work in FIPS mode because 1024 instead of 512 bit DH prime
is required. Thanks to Zhigang Wang for reporting and sending a patch.
Christophe Leroy provided a patch that fixes memory leaks reported by
valgrind
Help for filan -L was bad, is now corrected to:
"follow symbolic links instead of showing their properties"
Address options fdin and fdout were silently ignored when not applicable
due to -u or -U option. Now these combinations are caught as errors.
Test: FDOUT_ERROR
Issue reported by Hendrik.
Added option termios-cfmakeraw that calls cfmakeraw() and is preferred
over option raw which is now obsolote. On SysV systems this call is
simulated by appropriate setting.
Thanks to Youfu Zhang for reporting issue with option raw.
porting:
Socat included <sys/poll.h> instead of POSIX <poll.h>
Thanks to John Spencer for reporting this issue.
Version 1.7.2.4 changed the check for gcc in configure.ac; this
broke cross compiling. The particular check gets reverted.
Thanks to Ross Burton and Danomi Manchego for reporting this issue.
Debian Bug#764251: Set the build timestamp to a deterministic time:
support external BUILD_DATE env var to allow to build reproducable
binaries
Joachim Fenkes provided an new adapted spec file.
Type bool and macros Min and Max are defined by socat which led to
compile errors when they were already provided by build framework.
Thanks to Liyu Liu for providing a patch.
David Arnstein contributed a patch for NetBSD 5.1 including stdbool.h
support and appropriate files in Config/
Lauri Tirkkonen contributed a patch regarding netinet/if_ether.h
on Illumos
Changes for Openindiana: define _XPG4_2, __EXTENSIONS__,
_POSIX_PTHREAD_SEMANTICS; and minor changes
Red Hat issue 1182005: socat 1.7.2.4 build failure missing
linux/errqueue.h
Socat failed to compile on on PPC due to new requirements for
including <linux/errqueue.h> and a weakness in the conditional code.
Thanks to Michel Normand for reporting this issue.
doc:
In the man page the PTY example was badly formatted. Thanks to
J.F.Sebastian for sending a patch.
Added missing CVE ids to security issues in CHANGES
testing:
Do not distribute testcert.conf with socat source but generate it
(and new testcert6.conf) during test.sh run.
####################### V 1.7.2.4:
corrections:
LISTEN based addresses applied some address options, e.g. so-keepalive,
to the listening file descriptor instead of the connected file
descriptor
Thanks to Ulises Alonso for reporting this bug
make failed after configure with non gcc compiler due to missing
include. Thanks to Horacio Mijail for reporting this problem
configure checked for --disable-rawsocket but printed
--disable-genericsocket in the help text. Thanks to Ben Gardiner for
reporting and patching this bug
In xioshutdown() a wrong branch was chosen after RECVFROM type addresses.
Probably no impact.
Thanks to David Binderman for reporting this issue.
procan could not cleanly format ulimit values longer than 16 decimal
digits. Thanks to Frank Dana for providing a patch that increases field
width to 24 digits.
OPENSSL-CONNECT with bind option failed on some systems, eg.FreeBSD, with
"Invalid argument"
Thanks to Emile den Tex for reporting this bug.
Changed some variable definitions to make gcc -O2 aliasing checker happy
Thanks to Ilya Gordeev for reporting these warnings
On big endian platforms with type long >32bit the range option applied a
bad base address. Thanks to hejia hejia for reporting and fixing this bug.
Red Hat issue 1022070: missing length check in xiolog_ancillary_socket()
Red Hat issue 1022063: out-of-range shifts on net mask bits
Red Hat issue 1022062: strcpy misuse in xiosetsockaddrenv_ip4()
Red Hat issue 1022048: strncpy hardening: corrected suspicious strncpy()
uses
Red Hat issue 1021958: fixed a bug with faulty buffer/data length
calculation in xio-ascii.c:_xiodump()
Red Hat issue 1021972: fixed a missing NUL termination in return string
of sysutils.c:sockaddr_info() for the AF_UNIX case
fixed some typos and minor issues, including:
Red Hat issue 1021967: formatting error in manual page
UNIX-LISTEN with fork option did not remove the socket file system entry
when exiting. Other file system based passive address types had similar
issues or failed to apply options umask, user e.a.
Thanks to Lorenzo Monti for pointing me to this issue
porting:
Red Hat issue 1020203: configure checks fail with some compilers.
Use case: clang
Performed changes for Fedora release 19
Adapted, improved test.sh script
Red Hat issue 1021429: getgroupent fails with large number of groups;
use getgrouplist() when available instead of sequence of calls to
getgrent()
Red Hat issue 1021948: snprintf API change;
Implemented xio_snprintf() function as wrapper that tries to emulate C99
behaviour on old glibc systems, and adapted all affected calls
appropriately
Mike Frysinger provided a patch that supports long long for time_t,
socklen_t and a few other libc types.
Artem Mygaiev extended Cedril Priscals Android build script with pty code
The check for fips.h required stddef.h
Thanks to Matt Hilt for reporting this issue and sending a patch
Check for linux/errqueue.h failed on some systems due to lack of
linux/types.h inclusion. Thanks to Michael Vastola for sending a patch.
autoconf now prefers configure.ac over configure.in
Thanks to Michael Vastola for sending a patch.
type of struct cmsghdr.cmsg is system dependend, determine it with
configure; some more print format corrections
docu:
libwrap always logs to syslog
added actual text version of GPLv2
####################### V 1.7.2.3:
security:
Socat security advisory 5
CVE-2014-0019: socats PROXY-CONNECT address was vulnerable to a buffer
overflow with data from command line (see socat-secadv5.txt)
Credits to Florian Weimer of the Red Hat Product Security Team
####################### V 1.7.2.2:
security:
Socat security advisory 4
CVE-2013-3571:
after refusing a client connection due to bad source address or source
port socat shutdown() the socket but did not close() it, resulting in
a file descriptor leak in the listening process, visible with lsof and
possibly resulting in EMFILE Too many open files. This issue could be
misused for a denial of service attack.
Full credits to Catalin Mitrofan for finding and reporting this issue.
####################### V 1.7.2.1:
security:
Socat security advisory 3
CVE-2012-0219:
fixed a possible heap buffer overflow in the readline address. This bug
could be exploited when all of the following conditions were met:
1) one of the addresses is READLINE without the noprompt and without the
prompt options.
2) the other (almost arbitrary address) reads malicious data (which is
then transferred by socat to READLINE).
Workaround: when using the READLINE address apply option prompt or
noprompt.
Full credits to Johan Thillemann for finding and reporting this issue.
####################### V 1.7.2.0:
corrections:
when UNIX-LISTEN was applied to an existing file it failed as expected
but removed the file. Thanks to Bjoern Bosselmann for reporting this
problem
fixed a bug where socat might crash when connecting to a unix domain
socket using address GOPEN. Thanks to Martin Forssen for bug report and
patch.
UDP-LISTEN would alway set SO_REUSEADDR even without fork option and
when user set it to 0. Thanks to Michal Svoboda for reporting this bug.
UNIX-CONNECT did not support half-close. Thanks to Greg Hughes who
pointed me to that bug
TCP-CONNECT with option nonblock reported successful connect even when
it was still pending
address option ioctl-intp failed with "unimplemented type 26". Thanks
to Jeremy W. Sherman for reporting and fixing that bug
socat option -x did not print packet direction, timestamp etc; thanks
to Anthony Sharobaiko for sending a patch
address PTY does not take any parameters but did not report an error
when some were given
Marcus Meissner provided a patch that fixes invalid output and possible
process crash when socat prints info about an unnamed unix domain
socket
Michal Soltys reported the following problem and provided an initial
patch: when socat was interrupted, e.g. by SIGSTOP, and resumed during
data transfer only parts of the data might have been written.
Option o-nonblock in combination with large transfer block sizes
may result in partial writes and/or EAGAIN errors that were not handled
properly but resulted in data loss or process termination.
Fixed a bug that could freeze socat when during assembly of a log
message a signal was handled that also printed a log message. socat
development had been aware that localtime() is not thread safe but had
only expected broken messages, not corrupted stack (glibc 2.11.1,
Ubuntu 10.4)
an internal store for child pids was susceptible to pid reuse which
could lead to sporadic data loss when both fork option and exec address
were used. Thanks to Tetsuya Sodo for reporting this problem and
sending a patch
OpenSSL server failed with "no shared cipher" when using cipher aNULL.
Fixed by providing temporary DH parameters. Thanks to Philip Rowlands
for drawing my attention to this issue.
UDP-LISTEN slept 1s after accepting a connection. This is not required.
Thanks to Peter Valdemar Morch for reporting this issue
fixed a bug that could lead to error or socat crash after a client
connection with option retry had been established
fixed configure.in bug on net/if.h check that caused IF_NAMESIZE to be
undefined
improved dev_t print format definition
porting:
Cedril Priscal ported socat to Android (using Googles cross compiler).
The port includes the socat_buildscript_for_android.sh script
added check for component ipi_spec_dst in struct in_pktinfo so
compilation does not fail on Cygwin (thanks to Peter Wagemans for
reporting this problem)
build failed on RHEL6 due to presence of fips.h; configure now checks
for fipsld too. Thanks to Andreas Gruenbacher for reporting this
problem
check for netinet6/in6.h only when IPv6 is available and enabled
don't fail to compile when the following defines are missing:
IPV6_PKTINFO IPV6_RTHDR IPV6_DSTOPTS IPV6_HOPOPTS IPV6_HOPLIMIT
Thanks to Jerry Jacobs for reporting this problem (Mac OS X Lion 10.7)
check if define __APPLE_USE_RFC_2292 helps to enable IPV6_* (MacOSX
Lion 7.1); thanks to Jerry Jacobs to reporting this problem and
proposing a solution
fixed compiler warnings on Mac OS X 64bit. Thanks to Guy Harris for
providing the patch.
corrections for OpenEmbedded, especially termios SHIFT values and
ISPEED/OSPEED. Thanks to John Faith for providing the patch
minor corrections to docu and test.sh resulting from local compilation
on Openmoko SHR
fixed sa_family_t compile error on DragonFly. Thanks to Tony Young for
reporting this issue and sending a patch.
Ubuntu Oneiric: OpenSSL no longer provides SSLv2 functions; libutil.sh
is now bsd/libutil.h; compiler warns on vars that is only written to
new features:
added option max-children that limits the number of concurrent child
processes. Thanks to Sam Liddicott for providing the patch.
Till Maas added support for tun/tap addresses without IP address
added an option openssl-compress that allows to disable the compression
feature of newer OpenSSL versions. Thanks to Michael Hanselmann for
providing this contribution (sponsored by Google Inc.)
docu:
minor corrections in docu (thanks to Paggas)
client process -> child process
####################### V 1.7.1.3:
security:
Socat security advisory 2
CVE-2010-2799:
fixed a stack overflow vulnerability that occurred when command
line arguments (whole addresses, host names, file names) were longer
than 512 bytes.
Note that this could only be exploited when an attacker was able to
inject data into socat's command line.
Full credits to Felix Gröbert, Google Security Team, for finding and
reporting this issue
####################### V 1.7.1.2:
corrections:
user-late and group-late, when applied to a pty, affected the system
device /dev/ptmx instead of the pty (thanks to Matthew Cloke for
pointing me to this bug)
socats openssl addresses failed with "nonblocking operation did not
complete" when the peer performed a renegotiation. Thanks to Benjamin
Delpy for reporting this bug.
info message during socks connect showed bad port number on little
endian systems due to wrong byte order (thanks to Peter M. Galbavy for
bug report and patch)
Debian bug 531078: socat execs children with SIGCHLD ignored; corrected
to default. Thanks to Martin Dorey for reporting this bug.
porting:
building socat on systems that predefined the CFLAGS environment to
contain -Wall failed (esp.RedHat). Thanks to Paul Wouters for reporting
this problem and to Simon Matter for providing the patch
support for Solaris 8 and Sun Studio support (thanks to Sebastian
Kayser for providing the patches)
on some 64bit systems a compiler warning "cast from pointer to integer
of different size" was issued on some option definitions
added struct sockaddr_ll to union sockaddr_union to avoid "strict
aliasing" warnings (problem reported by Paul Wouters)
docu:
minor corrections in docu
####################### V 1.7.1.1:
corrections:
corrected the "fixed possible SIGSEGV" fix because SIGSEGV still might
occur under those conditions. Thanks to Toni Mattila for first
reporting this problem.
ftruncate64 cut its argument to 32 bits on systems with 32 bit long type
socat crashed on systems without setenv() (esp. SunOS up to Solaris 9);
thanks to Todd Stansell for reporting this bug
with unidirectional EXEC and SYSTEM a close() operation was performed
on a random number which could result in hanging e.a.
fixed a compile problem caused by size_t/socklen_t mismatch on 64bit
systems
docu mentioned option so-bindtodev but correct name is so-bindtodevice.
Thanks to Jim Zimmerman for reporting.
docu changes:
added environment variables example to doc/socat-multicast.html
####################### V 1.7.1.0:
new features:
address options shut-none, shut-down, and shut-close allow to control
socat's half close behaviour
with address option shut-null socat sends an empty packet to the peer
to indicate EOF
option null-eof changes the behaviour of sockets that receive an empty
packet to see EOF instead of ignoring it
introduced option names substuser-early and su-e, currently equivalent
to option substuser (thanks to Mike Perry for providing the patch)
corrections:
fixed some typos and improved some comments
####################### V 1.7.0.1:
corrections:
fixed possible SIGSEGV in listening addresses when a new connection was
reset by peer before the socket addresses could be retrieved. Thanks to
Mike Perry for sending a patch.
fixed a bug, introduced with version 1.7.0.0, that let client
connections with option connect-timeout fail when the connections
succeeded. Thanks to Bruno De Fraine for reporting this bug.
option end-close "did not apply" to addresses PTY, SOCKET-CONNECT,
and most UNIX-* and ABSTRACT-*
half close of EXEC and SYSTEM addresses did not work for pipes and
sometimes socketpair
help displayed for some option a wrong type
under some circumstances shutdown was called multiple times for the
same fd
####################### V 1.7.0.0:
new features:
new address types SCTP-CONNECT and SCTP-LISTEN implement SCTP stream
mode for IPv4 and IPv6; new address options sctp-maxseg and
sctp-nodelay (suggested by David A. Madore; thanks to Jonathan Brannan
for providing an initial patch)
new address "INTERFACE" for transparent network interface handling
(suggested by Stuart Nicholson)
added generic socket addresses: SOCKET-CONNECT, SOCKET-LISTEN,
SOCKET-SENDTO, SOCKET-RECVFROM, SOCKET-RECV, SOCKET-DATAGRAM allow
protocol independent socket handling; all parameters are explicitely
specified as numbers or hex data
added address options ioctl-void, ioctl-int, ioctl-intp, ioctl-string,
ioctl-bin for generic ioctl() calls.
added address options setsockopt-int, setsockopt-bin, and
setsockopt-string for generic setsockopt() calls
option so-type now only affects the socket() and socketpair() calls,
not the name resolution. so-type and so-prototype can now be applied to
all socket based addresses.
new address option "escape" allows to break a socat instance even when
raw terminal mode prevents ^C etc. (feature suggested by Guido Trotter)
socat sets environment variables SOCAT_VERSION, SOCAT_PID, SOCAT_PPID
for use in executed scripts
socat sets environment variables SOCAT_SOCKADDR, SOCAT_SOCKPORT,
SOCAT_PEERADDR, SOCAT_PEERPORT in LISTEN type addresses (feature
suggested by Ed Sawicki)
socat receives all ancillary messages with each received packet on
datagram related addresses. The messages are logged in raw form with
debug level, and broken down with info level. note: each type of
ancillary message must be enabled by appropriate address options.
socat provides the contents of ancillary messages received on RECVFROM
addresses in appropriate environment variables:
SOCAT_TIMESTAMP, SOCAT_IP_DSTADDR, SOCAT_IP_IF, SOCAT_IP_LOCADDR,
SOCAT_IP_OPTIONS, SOCAT_IP_TOS, SOCAT_IP_TTL, SOCAT_IPV6_DSTADDR,
SOCAT_IPV6_HOPLIMIT, SOCAT_IPV6_TCLASS
the following address options were added to enable ancillary messages:
so-timestamp, ip-pktinfo (not BSD), ip-recvdstaddr (BSD), ip-recverr,
ip-recvif (BSD), ip-recvopts, ip-recvtos, ip-recvttl, ipv6-recvdstopts,
ipv6-recverr, ipv6-recvhoplimit, ipv6-recvhopopts, ipv6-recvpathmtu,
ipv6-recvpktinfo, ipv6-recvrthdr, ipv6-recvtclass
new address options ipv6-tclass and ipv6-unicast-hops set the related
socket options.
STREAMS (UNIX System V STREAMS) can be configured with the new address
options i-pop-all and i-push (thanks to Michal Rysavy for providing a
patch)
corrections:
some raw IP and UNIX datagram modes failed on BSD systems
when UDP-LISTEN continued to listen after packet dropped by, e.g.,
range option, the old listen socket would not be closed but a new one
created. open sockets could accumulate.
there was a bug in ip*-recv with bind option: it did not bind, and
with the first received packet an error occurred:
socket_init(): unknown address family 0
test: RAWIP4RECVBIND
RECVFROM addresses with FORK option hung after processing the first
packet. test: UDP4RECVFROM_FORK
corrected a few mistakes that caused compiler warnings on 64bit hosts
(thanks to Jonathan Brannan e.a. for providing a patch)
EXEC and SYSTEM with stderr injected socat messages into the data
stream. test: EXECSTDERRLOG
when the EXEC address got a string with consecutive spaces it created
additional empty arguments (thanks to Olivier Hervieu for reporting
this bug). test: EXECSPACES
in ignoreeof polling mode socat also blocked data transfer in the other
direction during the 1s wait intervalls (thanks to Jorgen Cederlof for
reporting this bug)
corrected alphabetical order of options (proxy-auth)
some minor corrections
improved test.sh script: more stable timing, corrections for BSD
replaced the select() calls by poll() to cleanly fix the problems with
many file descriptors already open
socat option -lf did not log to file but to stderr
socat did not compile on Solaris when configured without termios
feature (thanks to Pavan Gadi for reporting this bug)
porting:
socat compiles and runs on AIX with gcc (thanks to Andi Mather for his
help)
socat compiles and runs on Cygwin (thanks to Jan Just Keijser for his
help)
socat compiles and runs on HP-UX with gcc (thanks to Michal Rysavy for
his help)
socat compiles and runs on MacOS X (thanks to Camillo Lugaresi for his
help)
further changes:
filan -s prefixes output with FD number if more than one FD
Makefile now supports datarootdir (thanks to Camillo Lugaresi for
providing the patch)
cleanup in xio-unix.c
####################### V 1.6.0.1:
new features:
new make target "gitclean"
docu source doc/socat.yo released
corrections:
exec:...,pty did not kill child process under some circumstances; fixed
by correcting typo in xio-progcall.c (thanks to Ralph Forsythe for
reporting this problem)
service name resolution failed due to byte order mistake
(thanks to James Sainsbury for reporting this problem)
socat would hang when invoked with many file descriptors already opened
fix: replaced FOPEN_MAX with FD_SETSIZE
thanks to Daniel Lucq for reporting this problem.
fixed bugs where sub processes would become zombies because the master
process did not catch SIGCHLD. this affected addresses UDP-LISTEN,
UDP-CONNECT, TCP-CONNECT, OPENSSL, PROXY, UNIX-CONNECT, UNIX-CLIENT,
ABSTRACT-CONNECT, ABSTRACT-CLIENT, SOCKSA, SOCKS4A
(thanks to Fernanda G Weiden for reporting this problem)