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2018-09-13adapt -portable to OpenSSL 1.1x APIDamien Miller
Polyfill missing API with replacement functions extracted from LibreSSL
2018-08-13configure: work around GCC shortcoming on CygwinCorinna Vinschen
Cygwin's latest 7.x GCC allows to specify -mfunction-return=thunk as well as -mindirect-branch=thunk on the command line, albeit producing invalid code, leading to an error at link stage. The check in configure.ac only checks if the option is present, but not if it produces valid code. This patch fixes it by special-casing Cygwin. Another solution may be to change these to linker checks. Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
2018-07-31Remove support for S/KeyDamien Miller
Most people will 1) be using modern multi-factor authentication methods like TOTP/OATH etc and 2) be getting support for multi-factor authentication via PAM or BSD Auth.
2018-07-02Add implementation of getline.Darren Tucker
Add getline for the benefit of platforms that don't have it. Sourced from NetBSD (OpenBSD's implementation is a little too chummy with the internals of FILE).
2018-06-08Remove ability to override $LD.Darren Tucker
Since autoconf always uses $CC to link C programs, allowing users to override LD caused mismatches between what LD_LINK_IFELSE thought worked and what ld thought worked. If you do need to do this kind of thing you need to set a compiler flag such as gcc's -fuse-ld in LDFLAGS.
2018-04-13Using "==" in shell tests is not portable.Darren Tucker
Patch from rsbecker at nexbridge.com.
2018-04-13prefer to use getrandom() for PRNG seedingDamien Miller
Only applies when built --without-openssl. Thanks Jann Horn for reminder.
2018-04-10Many typo fixes from Karsten WeissDamien Miller
Spotted using https://github.com/lucasdemarchi/codespell
2018-03-30Disable native strndup and strnlen on AIX.Darren Tucker
On at least some revisions of AIX, strndup returns unterminated strings under some conditions, apparently because strnlen returns incorrect values in those cases. Disable both on AIX and use the replacements from openbsd-compat. Fixes problem with ECDSA keys there, ok djm.
2018-03-25 Use libiaf on all sysv5 systemsTim Rice
2018-03-12Add AC_LANG_PROGRAM to AC_COMPILE_IFELSE.Darren Tucker
The recently added MIPS ABI tests need AC_LANG_PROGRAM to prevent warnings from autoconf. Pointed out by klausz at haus-gisela.de.
2018-03-08configure.ac: properly set seccomp_audit_arch for MIPS64Vicente Olivert Riera
Currently seccomp_audit_arch is set to AUDIT_ARCH_MIPS64 or AUDIT_ARCH_MIPSEL64 (depending on the endinness) when openssh is built for MIPS64. However, that's only valid for n64 ABI. The right macros for n32 ABI defined in seccomp.h are AUDIT_ARCH_MIPS64N32 and AUDIT_ARCH_MIPSEL64N32, for big and little endian respectively. Because of that an sshd built for MIPS64 n32 rejects connection attempts and the output of strace reveals that the problem is related to seccomp audit: [pid 194] prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, {len=57, filter=0x555d5da0}) = 0 [pid 194] write(7, "\0\0\0]\0\0\0\5\0\0\0Ulist_hostkey_types: "..., 97) = ? [pid 193] <... poll resumed> ) = 2 ([{fd=5, revents=POLLIN|POLLHUP}, {fd=6, revents=POLLHUP}]) [pid 194] +++ killed by SIGSYS +++ This patch fixes that problem by setting the right value to seccomp_audit_arch taking into account the MIPS64 ABI. Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
2018-03-08configure.ac: detect MIPS ABIVicente Olivert Riera
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
2018-03-05Disable UTMPX on SunOS4.Darren Tucker
2018-03-05Check for and work around buggy fflush(NULL).Darren Tucker
Some really old platforms (eg SunOS4) segfault on fflush(NULL) so check for and work around. With klausz at haus-gisela.de.
2018-03-03Add strndup for platforms that need it.Darren Tucker
Some platforms don't have strndup, which includes Solaris 10, NetBSD 3 and FreeBSD 6.
2018-02-27Check dlopen has RTLD_NOW before enabling pkcs11.Darren Tucker
2018-02-27Check for attributes on prototype args.Darren Tucker
Some compilers (gcc 2.9.53, 3.0 and probably others, see gcc bug #3481) do not accept __attribute__ on function pointer prototype args. Check for this and hide them if they're not accepted.
2018-02-26Hook up flock() compat code.Darren Tucker
Also a couple of minor changes: fail if we can't lock instead of silently succeeding, and apply a couple of minor style fixes.
2018-02-26XMSS-related files get includes.hDamien Miller
2018-02-26Invert sense of getpgrp test.Darren Tucker
AC_FUNC_GETPGRP tests if getpgrp(0) works, which it does if it's not declared. Instead, test if the zero-arg version we want to use works.
2018-02-26Add no-op getsid implmentation.Darren Tucker
2018-02-26bsd-statvfs: include sys/vfs.h, check for f_flags.Darren Tucker
2018-02-26Handle calloc(0,x) where different from malloc.Darren Tucker
Configure assumes that if malloc(0) returns null then calloc(0,n) also does. On some old platforms (SunOS4) malloc behaves as expected (as determined by AC_FUNC_MALLOC) but calloc doesn't. Test for this at configure time and activate the replacement function if found, plus handle this case in rpl_calloc.
2018-02-26Add prototype for readv if needed.Darren Tucker
2018-02-26Check for raise and supply if needed.Darren Tucker
2018-02-26Check for bzero and supply if needed.Darren Tucker
Since explicit_bzero uses it via an indirect it needs to be a function not just a macro.
2018-02-23Check for ifaddrs.h for BindInterface.Darren Tucker
BindInterface required getifaddr and friends so disable if not available (eg Solaris 10). We should be able to add support for some systems with a bit more work but this gets the building again.
2018-02-22Add headers for sys/audit.h.Darren Tucker
On some older platforms (at least sunos4, probably others) sys/audit.h requires some other headers. Patch from klausz at haus-gisela.de.
2018-02-18Remove now-unused check for getrusage.Darren Tucker
getrusage was used in ssh-rand-helper but that's now long gone. Patch from klauszh at haus-gisela.de.
2018-02-15Remove remaining now-obsolete cvs $Ids.Darren Tucker
2018-02-15Remove UNICOS support.Darren Tucker
The code required to support it is quite invasive to the mainline code that is synced with upstream and is an ongoing maintenance burden. Both the hardware and software are literal museum pieces these days and we could not find anyone still running OpenSSH on one.
2018-02-13Retpoline linker flag only needed for linking.Darren Tucker
2018-02-13Default PidFile is sshd.pid not ssh.pid.Darren Tucker
2018-02-11Include headers for linux/if.h.Darren Tucker
Prevents configure-time "present but cannot be compiled" warning.
2018-02-11Fix test for -z,retpolineplt linker flag.Darren Tucker
2018-02-11Add checks for Spectre v2 mitigation (retpoline)Darren Tucker
This adds checks for gcc and clang flags for mitigations for Spectre variant 2, ie "retpoline". It'll automatically enabled if the compiler supports it as part of toolchain hardening flag. ok djm@
2018-02-07Remove obsolete "Smartcard support" messageDarren Tucker
The configure checks that populated $SCARD_MSG were removed in commits 7ea845e4 and d8f60022 when the smartcard support was replaced with PKCS#11.
2017-12-11Add autogenerated dependency info to Makefile.Darren Tucker
Adds a .depend file containing dependency information generated by makedepend, which is appended to the generated Makefile by configure. You can regen the file with "make -f Makefile.in depend" if necessary, but we'll be looking at some way to automatically keep this up to date. "no objection" djm@
2017-12-11Fix pasto in ldns handling.Darren Tucker
When ldns-config is not found, configure would check the wrong variable. ok djm@
2017-12-09Remove now-used check for perl.Darren Tucker
2017-12-01Replace mkinstalldirs with mkdir -p.Darren Tucker
Check for MIKDIR_P and use it instead of mkinstalldirs. Should fix "mkdir: cannot create directory:... File exists" during "make install". Patch from eb at emlix.com.
2017-11-03Check for linux/if.h when enabling rdomain.Darren Tucker
musl libc doesn't seem to have linux/if.h, so check for its presence before enabling rdomain support on Linux.
2017-11-03Add headers for sys/sysctl.h and net/route.hDarren Tucker
On at least older OpenBSDs, sys/sysctl.h and net/route.h require sys/types and, in the case of sys/sysctl.h, sys/param.h for MAXLOGNAME.
2017-10-25autoconf glue to enable Linux VRFDamien Miller
2017-10-25check for net/route.h and sys/sysctl.hDamien Miller
2017-09-28don't fatal ./configure for LibreSSLDamien Miller
2017-09-28abort in configure when only openssl-1.1.x foundDamien Miller
We don't support openssl-1.1.x yet (see multiple threads on the openssh-unix-dev@ mailing list for the reason), but previously ./configure would accept it and the compilation would subsequently fail. This makes ./configure display an explicit error message and abort. ok dtucker@
2017-09-27Check for and handle calloc(p, 0) = NULL.Darren Tucker
On some platforms (AIX, maybe others) allocating zero bytes of memory via the various *alloc functions returns NULL, which is permitted by the standards. Autoconf has some macros for detecting this (with the exception of calloc for some reason) so use these and if necessary activate shims for them. ok djm@
2017-09-25Add minimal strsignal for platforms without it.Darren Tucker
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