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backport sftp+chroot+SELinux changes from Rawhide (#782078)

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This commit is contained in:
Petr Lautrbach 2012-02-02 14:07:09 +01:00
parent 78630ed29a
commit f7459a97a6
2 changed files with 66 additions and 0 deletions
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63
openssh-5.8p2-sftp-chroot.patch Normal file
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@ -0,0 +1,63 @@
diff -up openssh-5.9p0/openbsd-compat/port-linux.c.sftp-chroot openssh-5.9p0/openbsd-compat/port-linux.c
--- openssh-5.9p0/openbsd-compat/port-linux.c.sftp-chroot 2011-09-01 04:12:22.743024608 +0200
+++ openssh-5.9p0/openbsd-compat/port-linux.c 2011-09-01 04:12:23.069088065 +0200
@@ -503,6 +503,23 @@ ssh_selinux_change_context(const char *n
xfree(newctx);
}
+void
+ssh_selinux_copy_context(void)
+{
+ char *ctx;
+
+ if (!ssh_selinux_enabled())
+ return;
+
+ if (getexeccon((security_context_t *)&ctx) < 0) {
+ logit("%s: getcon failed with %s", __func__, strerror (errno));
+ return;
+ }
+ if (setcon(ctx) < 0)
+ logit("%s: setcon failed with %s", __func__, strerror (errno));
+ xfree(ctx);
+}
+
#endif /* WITH_SELINUX */
#ifdef LINUX_OOM_ADJUST
diff -up openssh-5.9p0/openbsd-compat/port-linux.h.sftp-chroot openssh-5.9p0/openbsd-compat/port-linux.h
--- openssh-5.9p0/openbsd-compat/port-linux.h.sftp-chroot 2011-01-25 02:16:18.000000000 +0100
+++ openssh-5.9p0/openbsd-compat/port-linux.h 2011-09-01 04:12:23.163088777 +0200
@@ -24,6 +24,7 @@ int ssh_selinux_enabled(void);
void ssh_selinux_setup_pty(char *, const char *);
void ssh_selinux_setup_exec_context(char *);
void ssh_selinux_change_context(const char *);
+void ssh_selinux_chopy_context(void);
void ssh_selinux_setfscreatecon(const char *);
#endif
diff -up openssh-5.9p0/session.c.sftp-chroot openssh-5.9p0/session.c
--- openssh-5.9p0/session.c.sftp-chroot 2011-09-01 04:12:19.698049195 +0200
+++ openssh-5.9p0/session.c 2011-09-01 04:40:03.598148719 +0200
@@ -1519,6 +1519,9 @@ do_setusercontext(struct passwd *pw)
pw->pw_uid);
chroot_path = percent_expand(tmp, "h", pw->pw_dir,
"u", pw->pw_name, (char *)NULL);
+#ifdef WITH_SELINUX
+ ssh_selinux_change_context("chroot_user_t");
+#endif
safely_chroot(chroot_path, pw->pw_uid);
free(tmp);
free(chroot_path);
@@ -1788,7 +1791,10 @@ do_child(Session *s, const char *command
optind = optreset = 1;
__progname = argv[0];
#ifdef WITH_SELINUX
- ssh_selinux_change_context("sftpd_t");
+ if (options.chroot_directory == NULL ||
+ strcasecmp(options.chroot_directory, "none") == 0) {
+ ssh_selinux_copy_context();
+ }
#endif
exit(sftp_server_main(i, argv, s->pw));
}

3
openssh.spec
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@ -145,6 +145,8 @@ Patch23: openssh-5.8p1-selinux-role.patch
Patch24: openssh-5.8p1-mls.patch
# #https://bugzilla.mindrot.org/show_bug.cgi?id=1614
# Patch25: openssh-5.6p1-selabel.patch
#https://bugzilla.redhat.com/show_bug.cgi?id=782078
Patch26: openssh-5.8p2-sftp-chroot.patch
#https://bugzilla.mindrot.org/show_bug.cgi?id=1668
Patch30: openssh-5.6p1-keygen.patch
#https://bugzilla.mindrot.org/show_bug.cgi?id=1644
@ -409,6 +411,7 @@ popd
# %patch22 -p1 -b .selinux
%patch23 -p1 -b .role
%patch24 -p1 -b .mls
%patch26 -p1 -b .sftp-chroot
%endif
%patch30 -p1 -b .keygen
%patch31 -p1 -b .ip-opts