diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:26:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:26:58 +0000 |
commit | 999ae6be3243c7b4a815247199447b53c39a3d65 (patch) | |
tree | 1f35b42b5e5f462d35ba452e4dcfa188ce0543fd /platform-tracing.c | |
parent | Initial commit. (diff) | |
download | openssh-upstream.tar.xz openssh-upstream.zip |
Adding upstream version 1:7.9p1.upstream/1%7.9p1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | platform-tracing.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/platform-tracing.c b/platform-tracing.c new file mode 100644 index 0000000..4c80a28 --- /dev/null +++ b/platform-tracing.c @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2016 Darren Tucker. All rights reserved. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "includes.h" + +#include <sys/types.h> +#if defined(HAVE_SYS_PRCTL_H) +#include <sys/prctl.h> /* For prctl() and PR_SET_DUMPABLE */ +#endif +#ifdef HAVE_SYS_PTRACE_H +#include <sys/ptrace.h> +#endif +#ifdef HAVE_PRIV_H +#include <priv.h> /* For setpflags() and __PROC_PROTECT */ +#endif +#include <stdarg.h> + +#include "log.h" + +void +platform_disable_tracing(int strict) +{ +#if defined(HAVE_PRCTL) && defined(PR_SET_DUMPABLE) + /* Disable ptrace on Linux without sgid bit */ + if (prctl(PR_SET_DUMPABLE, 0) != 0 && strict) + fatal("unable to make the process undumpable"); +#endif +#if defined(HAVE_SETPFLAGS) && defined(__PROC_PROTECT) + /* On Solaris, we should make this process untraceable */ + if (setpflags(__PROC_PROTECT, 1) != 0 && strict) + fatal("unable to make the process untraceable"); +#endif +#ifdef PT_DENY_ATTACH + /* Mac OS X */ + if (ptrace(PT_DENY_ATTACH, 0, 0, 0) == -1 && strict) + fatal("unable to set PT_DENY_ATTACH"); +#endif +} |