- markus@cvs.openbsd.org 2002/06/25 18:51:04

     [sshd.c]
     lightweight do_setusercontext after chroot()

2 files changed, 16 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 5f363d9ec..d3c7590dc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -22,6 +22,9 @@
    - markus@cvs.openbsd.org 2002/06/25 16:22:42
      [authfd.c]
      unnecessary cast
+   - markus@cvs.openbsd.org 2002/06/25 18:51:04
+     [sshd.c]
+     lightweight do_setusercontext after chroot()
 
 20020625
  - (stevesk) [INSTALL acconfig.h configure.ac defines.h] remove --with-rsh
@@ -1121,4 +1124,4 @@
  - (stevesk) entropy.c: typo in debug message
  - (djm) ssh-keygen -i needs seeded RNG; report from markus@
 
-$Id: ChangeLog,v 1.2280 2002/06/25 23:22:54 mouring Exp $
+$Id: ChangeLog,v 1.2281 2002/06/25 23:24:18 mouring Exp $
diff --git a/sshd.c b/sshd.c
index 18df8ab8f..851fad4be 100644
--- a/sshd.c
+++ b/sshd.c
@@ -42,7 +42,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: sshd.c,v 1.250 2002/06/23 10:29:52 deraadt Exp $");
+RCSID("$OpenBSD: sshd.c,v 1.251 2002/06/25 18:51:04 markus Exp $");
 
 #include <openssl/dh.h>
 #include <openssl/bn.h>
@@ -530,6 +530,7 @@ static void
 privsep_preauth_child(void)
 {
         u_int32_t rand[256];
+        gid_t gidset[2];
         struct passwd *pw;
         int i;
 
@@ -559,7 +560,17 @@ privsep_preauth_child(void)
         /* Drop our privileges */
         debug3("privsep user:group %u:%u", (u_int)pw->pw_uid,
             (u_int)pw->pw_gid);
+#if 0
+        /* XXX not ready, to heavy after chroot */
         do_setusercontext(pw);
+#else
+        gidset[0] = pw->pw_gid;
+        if (setgid(pw->pw_gid) < 0)
+                fatal("setgid failed for %u", pw->pw_gid );
+        if (setgroups(1, gidset) < 0)
+                fatal("setgroups: %.100s", strerror(errno));
+        permanently_set_uid(pw);
+#endif
 }
 
 static Authctxt*