diff --git a/sys/compat/linux32/arch/amd64/syscalls.master b/sys/compat/linux32/arch/amd64/syscalls.master
index 81bdd8933d50..1bc66cacf7cc 100644
--- a/sys/compat/linux32/arch/amd64/syscalls.master
+++ b/sys/compat/linux32/arch/amd64/syscalls.master
@@ -1,4 +1,4 @@
-	$NetBSD: syscalls.master,v 1.41 2008/12/01 14:18:44 njoly Exp $
+	$NetBSD: syscalls.master,v 1.42 2008/12/05 23:30:19 njoly Exp $
 
 ; NetBSD i386 COMPAT_LINUX32 system call name/number "master" file.
 ; (See syscalls.conf to see what it is processed into.)
@@ -355,10 +355,12 @@
 207	NOARGS	{ int netbsd32___posix_fchown(int fd, uid_t uid, gid_t gid); }
 208	STD	{ int linux32_sys_setresuid(uid_t ruid, uid_t euid, \
 		    uid_t suid); }
-209	UNIMPL	getresuid
+209	STD	{ int linux32_sys_getresuid(linux32_uidp_t ruid, \
+		    linux32_uidp_t euid, linux32_uidp_t suid); }
 210	STD	{ int linux32_sys_setresgid(gid_t rgid, gid_t egid, \
 		    gid_t sgid); }
-211	UNIMPL	getresgid
+211	STD	{ int linux32_sys_getresgid(linux32_gidp_t rgid, \
+		    linux32_gidp_t egid, linux32_gidp_t sgid); }
 212	NOARGS	{ int netbsd32___posix_chown(netbsd32_charp path, \
 		    uid_t uid, gid_t gid); }
 213 	NOARGS	{ int netbsd32_setuid(uid_t uid); }
diff --git a/sys/compat/linux32/common/linux32_types.h b/sys/compat/linux32/common/linux32_types.h
index cac56e369dbc..0e168a7e2d61 100644
--- a/sys/compat/linux32/common/linux32_types.h
+++ b/sys/compat/linux32/common/linux32_types.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: linux32_types.h,v 1.8 2008/09/04 17:45:00 njoly Exp $ */
+/*	$NetBSD: linux32_types.h,v 1.9 2008/12/05 23:30:19 njoly Exp $ */
 
 /*-
  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
@@ -56,6 +56,8 @@ typedef netbsd32_pointer_t linux32_tmsp_t;
 typedef netbsd32_pointer_t linux32_sched_paramp_t;
 typedef netbsd32_pointer_t linux32_utimbufp_t;
 typedef netbsd32_pointer_t linux32_oldold_utsnamep_t;
+typedef netbsd32_pointer_t linux32_uidp_t;
+typedef netbsd32_pointer_t linux32_gidp_t;
 typedef netbsd32_pointer_t linux32_uid16p_t;
 typedef netbsd32_pointer_t linux32_gid16p_t;
 typedef netbsd32_pointer_t linux32_oldselectp_t;
diff --git a/sys/compat/linux32/common/linux32_unistd.c b/sys/compat/linux32/common/linux32_unistd.c
index 4231d64b4179..1c9461aef84a 100644
--- a/sys/compat/linux32/common/linux32_unistd.c
+++ b/sys/compat/linux32/common/linux32_unistd.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: linux32_unistd.c,v 1.25 2008/11/19 18:36:04 ad Exp $ */
+/*	$NetBSD: linux32_unistd.c,v 1.26 2008/12/05 23:30:19 njoly Exp $ */
 
 /*-
  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
@@ -33,7 +33,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(0, "$NetBSD: linux32_unistd.c,v 1.25 2008/11/19 18:36:04 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux32_unistd.c,v 1.26 2008/12/05 23:30:19 njoly Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -46,6 +46,7 @@ __KERNEL_RCSID(0, "$NetBSD: linux32_unistd.c,v 1.25 2008/11/19 18:36:04 ad Exp $
 #include <sys/proc.h>
 #include <sys/ucred.h>
 #include <sys/swap.h>
+#include <sys/kauth.h>
 
 #include <machine/types.h>
 
@@ -370,6 +371,30 @@ linux32_sys_setresuid(struct lwp *l, const struct linux32_sys_setresuid_args *ua
 	return linux_sys_setresuid(l, &ua, retval);
 }
 
+int
+linux32_sys_getresuid(struct lwp *l, const struct linux32_sys_getresuid_args *uap, register_t *retval)
+{
+	/* {
+		syscallarg(linux32_uidp_t) ruid;
+		syscallarg(linux32_uidp_t) euid;
+		syscallarg(linux32_uidp_t) suid;
+	} */
+	kauth_cred_t pc = l->l_cred;
+	int error;
+	uid_t uid;
+
+	uid = kauth_cred_getuid(pc);
+	if ((error = copyout(&uid, SCARG_P32(uap, ruid), sizeof(uid_t))) != 0)
+		return error;
+
+	uid = kauth_cred_geteuid(pc);
+	if ((error = copyout(&uid, SCARG_P32(uap, euid), sizeof(uid_t))) != 0)
+		return error;
+
+	uid = kauth_cred_getsvuid(pc);
+	return copyout(&uid, SCARG_P32(uap, suid), sizeof(uid_t));
+}
+
 int
 linux32_sys_setresgid(struct lwp *l, const struct linux32_sys_setresgid_args *uap, register_t *retval)
 {
@@ -387,6 +412,30 @@ linux32_sys_setresgid(struct lwp *l, const struct linux32_sys_setresgid_args *ua
 	return linux_sys_setresgid(l, &ua, retval);
 }
 
+int
+linux32_sys_getresgid(struct lwp *l, const struct linux32_sys_getresgid_args *uap, register_t *retval)
+{
+	/* {
+		syscallarg(linux32_gidp_t) rgid;
+		syscallarg(linux32_gidp_t) egid;
+		syscallarg(linux32_gidp_t) sgid;
+	} */
+	kauth_cred_t pc = l->l_cred;
+	int error;
+	gid_t gid;
+
+	gid = kauth_cred_getgid(pc);
+	if ((error = copyout(&gid, SCARG_P32(uap, rgid), sizeof(gid_t))) != 0)
+		return error;
+
+	gid = kauth_cred_getegid(pc);
+	if ((error = copyout(&gid, SCARG_P32(uap, egid), sizeof(gid_t))) != 0)
+		return error;
+
+	gid = kauth_cred_getsvgid(pc);
+	return copyout(&gid, SCARG_P32(uap, sgid), sizeof(gid_t));
+}
+
 int
 linux32_sys_nice(struct lwp *l, const struct linux32_sys_nice_args *uap, register_t *retval)
 {