forked from pool/openssh
Accepting request 19015 from Base:System
Copy from Base:System/openssh based on submit request 19015 from user coolo OBS-URL: https://build.opensuse.org/request/show/19015 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/openssh?expand=0&rev=31
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162
openssh-5.2p1-homechroot.patch
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162
openssh-5.2p1-homechroot.patch
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@ -0,0 +1,162 @@
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+++ openssh-5.2p1/chrootenv.h
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+++ openssh-5.2p1/chrootenv.h
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@@ -0,0 +1,32 @@
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+/* $OpenBSD: session.h,v 1.30 2008/05/08 12:21:16 djm Exp $ */
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+
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+/*
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+ * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ * 1. Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ * 2. Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in the
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+ * documentation and/or other materials provided with the distribution.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ */
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+#ifndef CHROOTENV_H
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+#define CHROOTENV_H
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+
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+extern int chroot_no_tree;
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+
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+#endif
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+
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--- openssh-5.2p1/session.c
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+++ openssh-5.2p1/session.c 2009-07-24 07:33:14.000000000 +0200
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@@ -119,6 +119,8 @@ void do_child(Session *, const char *);
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void do_motd(void);
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int check_quietlogin(Session *, const char *);
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+int chroot_no_tree = 0;
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+
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static void do_authenticated1(Authctxt *);
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static void do_authenticated2(Authctxt *);
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@@ -802,6 +804,11 @@ do_exec(Session *s, const char *command)
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debug("Forced command (key option) '%.900s'", command);
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}
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+ if ((s->is_subsystem != SUBSYSTEM_INT_SFTP) && chroot_no_tree) {
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+ logit("You aren't welcomed, go away!");
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+ exit (1);
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+ }
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+
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#ifdef SSH_AUDIT_EVENTS
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if (command != NULL)
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PRIVSEP(audit_run_command(command));
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@@ -1408,6 +1415,7 @@ safely_chroot(const char *path, uid_t ui
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const char *cp;
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char component[MAXPATHLEN];
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struct stat st;
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+ int last;
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if (*path != '/')
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fatal("chroot path does not begin at root");
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@@ -1419,7 +1427,7 @@ safely_chroot(const char *path, uid_t ui
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* root-owned directory with strict permissions.
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*/
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for (cp = path; cp != NULL;) {
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- if ((cp = strchr(cp, '/')) == NULL)
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+ if (((last = ((cp = strchr(cp, '/')) == NULL))))
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strlcpy(component, path, sizeof(component));
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else {
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cp++;
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@@ -1432,15 +1440,19 @@ safely_chroot(const char *path, uid_t ui
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if (stat(component, &st) != 0)
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fatal("%s: stat(\"%s\"): %s", __func__,
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component, strerror(errno));
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- if (st.st_uid != 0 || (st.st_mode & 022) != 0)
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+ if ((st.st_uid != 0 || (st.st_mode & 022) != 0) && !(last && st.st_uid == uid))
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fatal("bad ownership or modes for chroot "
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"directory %s\"%s\"",
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cp == NULL ? "" : "component ", component);
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if (!S_ISDIR(st.st_mode))
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fatal("chroot path %s\"%s\" is not a directory",
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cp == NULL ? "" : "component ", component);
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-
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}
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+ setenv ("TZ", "/etc/localtime", 0);
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+ tzset ();
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+
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+ if (st.st_uid != uid)
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+ ++chroot_no_tree;
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if (chdir(path) == -1)
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fatal("Unable to chdir to chroot path \"%s\": "
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@@ -1451,6 +1463,10 @@ safely_chroot(const char *path, uid_t ui
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if (chdir("/") == -1)
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fatal("%s: chdir(/) after chroot: %s",
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__func__, strerror(errno));
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+
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+ if (access ("/etc/localtime", R_OK) < 0)
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+ ++chroot_no_tree;
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+
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verbose("Changed root directory to \"%s\"", path);
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}
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--- openssh-5.2p1/sftp.c
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+++ openssh-5.2p1/sftp.c
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@@ -94,6 +94,8 @@ int remote_glob(struct sftp_conn *, cons
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extern char *__progname;
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+int chroot_no_tree = 0;
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+
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/* Separators for interactive commands */
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#define WHITESPACE " \t\r\n"
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--- openssh-5.2p1/sftp-common.c
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+++ openssh-5.2p1/sftp-common.c
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@@ -40,6 +40,7 @@
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#include "xmalloc.h"
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#include "buffer.h"
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#include "log.h"
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+#include "chrootenv.h"
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#include "sftp.h"
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#include "sftp-common.h"
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@@ -194,13 +195,13 @@ ls_file(const char *name, const struct s
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char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1];
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strmode(st->st_mode, mode);
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- if (!remote && (pw = getpwuid(st->st_uid)) != NULL) {
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+ if (!remote && !chroot_no_tree && (pw = getpwuid(st->st_uid)) != NULL) {
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user = pw->pw_name;
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} else {
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snprintf(ubuf, sizeof ubuf, "%u", (u_int)st->st_uid);
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user = ubuf;
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}
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- if (!remote && (gr = getgrgid(st->st_gid)) != NULL) {
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+ if (!remote && !chroot_no_tree && (gr = getgrgid(st->st_gid)) != NULL) {
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group = gr->gr_name;
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} else {
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snprintf(gbuf, sizeof gbuf, "%u", (u_int)st->st_gid);
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--- openssh-5.2p1/sftp-server-main.c
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+++ openssh-5.2p1/sftp-server-main.c
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@@ -22,11 +22,14 @@
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#include <stdarg.h>
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#include <stdio.h>
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#include <unistd.h>
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+#include <time.h>
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#include "log.h"
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#include "sftp.h"
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#include "misc.h"
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+int chroot_no_tree = 0;
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+
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void
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cleanup_exit(int i)
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{
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@ -23,7 +23,7 @@ BuildRequires: gtk2-devel krb5-devel opensc-devel openssh openssl-devel pam-dev
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License: BSD 3-clause (or similar)
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Group: Productivity/Networking/SSH
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Version: 5.2p1
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Release: 6
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Release: 7
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Requires: openssh = %{version} openssh-askpass = %{version}
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AutoReqProv: on
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Summary: A GNOME-Based Passphrase Dialog for OpenSSH
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@ -1,3 +1,9 @@
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-------------------------------------------------------------------
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Thu Aug 20 16:54:08 CEST 2009 - anicka@suse.cz
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- make sftp in chroot users life easier (ie. bnc#518238),
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many thanks jchadima@redhat.com for a patch
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-------------------------------------------------------------------
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Sun Jul 12 21:43:21 CEST 2009 - coolo@novell.com
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@ -38,7 +38,7 @@ PreReq: /usr/sbin/groupadd /usr/sbin/useradd %insserv_prereq %fillup_pr
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Conflicts: nonfreessh
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AutoReqProv: on
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Version: 5.2p1
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Release: 6
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Release: 7
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%define xversion 1.2.4.1
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Summary: Secure Shell Client and Server (Remote Login Program)
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Url: http://www.openssh.com/
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@ -71,6 +71,7 @@ Patch44: %{name}-%{version}-audit.patch
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Patch45: %{name}-%{version}-pts.diff
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Patch46: %{name}-%{version}-pam-fix4.diff
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Patch48: %{name}-%{version}-forwards.diff
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Patch49: %{name}-%{version}-homechroot.patch
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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%package askpass
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@ -162,6 +163,7 @@ Authors:
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%patch45
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%patch46 -p1
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%patch48
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%patch49 -p1
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cp -v %{SOURCE4} .
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cp -v %{SOURCE6} .
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cd ../x11-ssh-askpass-%{xversion}
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