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https://github.com/freebsd/freebsd-src
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19261079b7
Some notable changes, from upstream's release notes: - sshd(8): Remove support for obsolete "host/port" syntax. - ssh(1): When prompting whether to record a new host key, accept the key fingerprint as a synonym for "yes". - ssh-keygen(1): when acting as a CA and signing certificates with an RSA key, default to using the rsa-sha2-512 signature algorithm. - ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa" (RSA/SHA1) algorithm from those accepted for certificate signatures. - ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F support to provide address-space isolation for token middleware libraries (including the internal one). - ssh(1): this release enables UpdateHostkeys by default subject to some conservative preconditions. - scp(1): this release changes the behaviour of remote to remote copies (e.g. "scp host-a:/path host-b:") to transfer through the local host by default. - scp(1): experimental support for transfers using the SFTP protocol as a replacement for the venerable SCP/RCP protocol that it has traditionally used. Additional integration work is needed to support FIDO/U2F in the base system. Deprecation Notice ------------------ OpenSSH will disable the ssh-rsa signature scheme by default in the next release. Reviewed by: imp MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29985
66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
/* OPENBSD ORIGINAL: lib/libc/string/explicit_bzero.c */
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/* $OpenBSD: explicit_bzero.c,v 1.1 2014/01/22 21:06:45 tedu Exp $ */
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/*
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* Public domain.
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* Written by Ted Unangst
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*/
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#include "includes.h"
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#include <string.h>
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/*
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* explicit_bzero - don't let the compiler optimize away bzero
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*/
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#ifndef HAVE_EXPLICIT_BZERO
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#ifdef HAVE_EXPLICIT_MEMSET
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void
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explicit_bzero(void *p, size_t n)
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{
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(void)explicit_memset(p, 0, n);
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}
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#elif defined(HAVE_MEMSET_S)
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void
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explicit_bzero(void *p, size_t n)
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{
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if (n == 0)
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return;
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(void)memset_s(p, n, 0, n);
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}
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#else /* HAVE_MEMSET_S */
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/*
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* Indirect bzero through a volatile pointer to hopefully avoid
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* dead-store optimisation eliminating the call.
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*/
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static void (* volatile ssh_bzero)(void *, size_t) = bzero;
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void
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explicit_bzero(void *p, size_t n)
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{
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if (n == 0)
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return;
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/*
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* clang -fsanitize=memory needs to intercept memset-like functions
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* to correctly detect memory initialisation. Make sure one is called
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* directly since our indirection trick above successfully confuses it.
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*/
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#if defined(__has_feature)
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# if __has_feature(memory_sanitizer)
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memset(p, 0, n);
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# endif
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#endif
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ssh_bzero(p, n);
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}
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#endif /* HAVE_MEMSET_S */
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#endif /* HAVE_EXPLICIT_BZERO */
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