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authorDarren Tucker <dtucker@zip.com.au>2016-06-15 11:22:38 +1000
committerDarren Tucker <dtucker@zip.com.au>2016-06-15 11:29:24 +1000
commit57b4ee04cad0d3e0fec1194753b0c4d31e39a1cd (patch)
treec16b86f69bb8273ebaedf7bef263fe5f7c184f11
parent78dc8e3724e30ee3e1983ce013e80277dc6ca070 (diff)
Move platform_disable_tracing into its own file.
Prevents link errors resolving the extern "options" when platform.o gets linked into ssh-agent when building --with-pam.
-rw-r--r--Makefile.in4
-rw-r--r--platform-tracing.c43
-rw-r--r--platform.c23
3 files changed, 45 insertions, 25 deletions
diff --git a/Makefile.in b/Makefile.in
index 1a2e743a6..141608bdb 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -92,13 +92,13 @@ LIBSSH_OBJS=${LIBOPENSSH_OBJS} \
92 kex.o kexdh.o kexgex.o kexecdh.o kexc25519.o \ 92 kex.o kexdh.o kexgex.o kexecdh.o kexc25519.o \
93 kexdhc.o kexgexc.o kexecdhc.o kexc25519c.o \ 93 kexdhc.o kexgexc.o kexecdhc.o kexc25519c.o \
94 kexdhs.o kexgexs.o kexecdhs.o kexc25519s.o \ 94 kexdhs.o kexgexs.o kexecdhs.o kexc25519s.o \
95 platform.o platform-pledge.o 95 platform-pledge.o platform-tracing.o
96 96
97SSHOBJS= ssh.o readconf.o clientloop.o sshtty.o \ 97SSHOBJS= ssh.o readconf.o clientloop.o sshtty.o \
98 sshconnect.o sshconnect1.o sshconnect2.o mux.o 98 sshconnect.o sshconnect1.o sshconnect2.o mux.o
99 99
100SSHDOBJS=sshd.o auth-rhosts.o auth-passwd.o auth-rsa.o auth-rh-rsa.o \ 100SSHDOBJS=sshd.o auth-rhosts.o auth-passwd.o auth-rsa.o auth-rh-rsa.o \
101 audit.o audit-bsm.o audit-linux.o \ 101 audit.o audit-bsm.o audit-linux.o platform.o \
102 sshpty.o sshlogin.o servconf.o serverloop.o \ 102 sshpty.o sshlogin.o servconf.o serverloop.o \
103 auth.o auth1.o auth2.o auth-options.o session.o \ 103 auth.o auth1.o auth2.o auth-options.o session.o \
104 auth-chall.o auth2-chall.o groupaccess.o \ 104 auth-chall.o auth2-chall.o groupaccess.o \
diff --git a/platform-tracing.c b/platform-tracing.c
new file mode 100644
index 000000000..81020e7f7
--- /dev/null
+++ b/platform-tracing.c
@@ -0,0 +1,43 @@
1/*
2 * Copyright (c) 2016 Darren Tucker. All rights reserved.
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "includes.h"
18
19#include <sys/types.h>
20#if defined(HAVE_SYS_PRCTL_H)
21#include <sys/prctl.h> /* For prctl() and PR_SET_DUMPABLE */
22#endif
23#ifdef HAVE_PRIV_H
24#include <priv.h> /* For setpflags() and __PROC_PROTECT */
25#endif
26#include <stdarg.h>
27
28#include "log.h"
29
30void
31platform_disable_tracing(int strict)
32{
33#if defined(HAVE_PRCTL) && defined(PR_SET_DUMPABLE)
34 /* Disable ptrace on Linux without sgid bit */
35 if (prctl(PR_SET_DUMPABLE, 0) != 0 && strict)
36 fatal("unable to make the process undumpable");
37#endif
38#if defined(HAVE_SETPFLAGS) && defined(__PROC_PROTECT)
39 /* On Solaris, we should make this process untraceable */
40 if (setpflags(__PROC_PROTECT, 1) != 0 && strict)
41 fatal("unable to make the process untraceable");
42#endif
43}
diff --git a/platform.c b/platform.c
index c68bb09c1..acf8554cd 100644
--- a/platform.c
+++ b/platform.c
@@ -18,14 +18,6 @@
18 18
19#include "includes.h" 19#include "includes.h"
20 20
21#include <sys/types.h>
22#if defined(HAVE_SYS_PRCTL_H)
23#include <sys/prctl.h> /* For prctl() and PR_SET_DUMPABLE */
24#endif
25#ifdef HAVE_PRIV_H
26#include <priv.h> /* For setpflags() and __PROC_PROTECT */
27#endif
28
29#include <stdarg.h> 21#include <stdarg.h>
30#include <unistd.h> 22#include <unistd.h>
31 23
@@ -223,18 +215,3 @@ platform_sys_dir_uid(uid_t uid)
223#endif 215#endif
224 return 0; 216 return 0;
225} 217}
226
227void
228platform_disable_tracing(int strict)
229{
230#if defined(HAVE_PRCTL) && defined(PR_SET_DUMPABLE)
231 /* Disable ptrace on Linux without sgid bit */
232 if (prctl(PR_SET_DUMPABLE, 0) != 0 && strict)
233 fatal("unable to make the process undumpable");
234#endif
235#if defined(HAVE_SETPFLAGS) && defined(__PROC_PROTECT)
236 /* On Solaris, we should make this process untraceable */
237 if (setpflags(__PROC_PROTECT, 1) != 0 && strict)
238 fatal("unable to make the process untraceable");
239#endif
240}