105 lines
3.3 KiB
Diff
105 lines
3.3 KiB
Diff
diff -up openssh-6.1p1/openbsd-compat/port-linux.c.privsep-selinux openssh-6.1p1/openbsd-compat/port-linux.c
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--- openssh-6.1p1/openbsd-compat/port-linux.c.privsep-selinux 2012-11-05 14:46:39.334809203 +0100
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+++ openssh-6.1p1/openbsd-compat/port-linux.c 2012-11-05 14:54:32.614504884 +0100
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@@ -505,6 +505,25 @@ ssh_selinux_change_context(const char *n
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xfree(newctx);
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}
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+void
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+ssh_selinux_copy_context(void)
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+{
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+ security_context_t *ctx;
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+
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+ if (!ssh_selinux_enabled())
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+ return;
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+
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+ if (getexeccon((security_context_t *)&ctx) != 0) {
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+ logit("%s: getcon failed with %s", __func__, strerror (errno));
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+ return;
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+ }
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+ if (ctx != NULL) {
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+ if (setcon(ctx) != 0)
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+ logit("%s: setcon failed with %s", __func__, strerror (errno));
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+ freecon(ctx);
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+ }
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+}
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+
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#endif /* WITH_SELINUX */
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#ifdef LINUX_OOM_ADJUST
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diff -up openssh-6.1p1/openbsd-compat/port-linux.h.privsep-selinux openssh-6.1p1/openbsd-compat/port-linux.h
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--- openssh-6.1p1/openbsd-compat/port-linux.h.privsep-selinux 2011-01-25 02:16:18.000000000 +0100
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+++ openssh-6.1p1/openbsd-compat/port-linux.h 2012-11-05 14:46:39.339809234 +0100
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@@ -24,6 +24,7 @@ int ssh_selinux_enabled(void);
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void ssh_selinux_setup_pty(char *, const char *);
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void ssh_selinux_setup_exec_context(char *);
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void ssh_selinux_change_context(const char *);
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+void ssh_selinux_copy_context(void);
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void ssh_selinux_setfscreatecon(const char *);
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#endif
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diff -up openssh-6.1p1/session.c.privsep-selinux openssh-6.1p1/session.c
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--- openssh-6.1p1/session.c.privsep-selinux 2012-12-03 09:43:11.727505761 +0100
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+++ openssh-6.1p1/session.c 2012-12-03 09:54:50.455688902 +0100
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@@ -1519,6 +1519,9 @@ do_setusercontext(struct passwd *pw)
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pw->pw_uid);
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chroot_path = percent_expand(tmp, "h", pw->pw_dir,
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"u", pw->pw_name, (char *)NULL);
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+#ifdef WITH_SELINUX
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+ ssh_selinux_copy_context();
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+#endif
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safely_chroot(chroot_path, pw->pw_uid);
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free(tmp);
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free(chroot_path);
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@@ -1533,6 +1536,12 @@ do_setusercontext(struct passwd *pw)
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/* Permanently switch to the desired uid. */
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permanently_set_uid(pw);
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#endif
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+
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+#ifdef WITH_SELINUX
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+ if (options.chroot_directory == NULL ||
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+ strcasecmp(options.chroot_directory, "none") == 0)
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+ ssh_selinux_copy_context();
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+#endif
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}
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if (getuid() != pw->pw_uid || geteuid() != pw->pw_uid)
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@@ -1787,9 +1796,6 @@ do_child(Session *s, const char *command
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argv[i] = NULL;
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optind = optreset = 1;
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__progname = argv[0];
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-#ifdef WITH_SELINUX
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- ssh_selinux_change_context("sftpd_t");
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-#endif
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exit(sftp_server_main(i, argv, s->pw));
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}
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diff -up openssh-6.1p1/sshd.c.privsep-selinux openssh-6.1p1/sshd.c
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--- openssh-6.1p1/sshd.c.privsep-selinux 2013-02-24 11:29:32.997823377 +0100
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+++ openssh-6.1p1/sshd.c 2013-02-24 11:43:34.171182720 +0100
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@@ -653,6 +653,10 @@ privsep_preauth_child(void)
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/* Demote the private keys to public keys. */
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demote_sensitive_data();
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+#ifdef WITH_SELINUX
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+ ssh_selinux_change_context("sshd_net_t");
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+#endif
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+
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/* Change our root directory */
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if (chroot(_PATH_PRIVSEP_CHROOT_DIR) == -1)
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fatal("chroot(\"%s\"): %s", _PATH_PRIVSEP_CHROOT_DIR,
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@@ -794,6 +798,13 @@ privsep_postauth(Authctxt *authctxt)
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do_setusercontext(authctxt->pw);
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skip:
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+#ifdef WITH_SELINUX
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+ /* switch SELinux content for root too */
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+ if (authctxt->pw->pw_uid == 0) {
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+ ssh_selinux_copy_context();
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+ }
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+#endif
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+
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/* It is safe now to apply the key state */
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monitor_apply_keystate(pmonitor);
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