1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) Dan Kegel 2003 4f08c3bdfSopenharmony_ci * Copyright (c) 2022 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com> 5f08c3bdfSopenharmony_ci */ 6f08c3bdfSopenharmony_ci 7f08c3bdfSopenharmony_ci/*\ 8f08c3bdfSopenharmony_ci * [Description] 9f08c3bdfSopenharmony_ci * 10f08c3bdfSopenharmony_ci * Verify that setegid() sets the effective UID of the calling process 11f08c3bdfSopenharmony_ci * correctly, and does not modify the saved GID and real GID. 12f08c3bdfSopenharmony_ci */ 13f08c3bdfSopenharmony_ci 14f08c3bdfSopenharmony_ci#include <pwd.h> 15f08c3bdfSopenharmony_ci#include "tst_test.h" 16f08c3bdfSopenharmony_ci 17f08c3bdfSopenharmony_cistatic gid_t nobody_gid; 18f08c3bdfSopenharmony_ci 19f08c3bdfSopenharmony_cistatic void setup(void) 20f08c3bdfSopenharmony_ci{ 21f08c3bdfSopenharmony_ci struct passwd *nobody; 22f08c3bdfSopenharmony_ci 23f08c3bdfSopenharmony_ci nobody = SAFE_GETPWNAM("nobody"); 24f08c3bdfSopenharmony_ci nobody_gid = nobody->pw_gid; 25f08c3bdfSopenharmony_ci} 26f08c3bdfSopenharmony_ci 27f08c3bdfSopenharmony_cistatic void setegid_verify(void) 28f08c3bdfSopenharmony_ci{ 29f08c3bdfSopenharmony_ci gid_t cur_rgid, cur_egid, cur_sgid; 30f08c3bdfSopenharmony_ci gid_t orig_rgid, orig_egid, orig_sgid; 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_ci SAFE_GETRESGID(&orig_rgid, &orig_egid, &orig_sgid); 33f08c3bdfSopenharmony_ci tst_res(TINFO, "getresgid() reports rgid: %d, egid: %d, sgid: %d", 34f08c3bdfSopenharmony_ci orig_rgid, orig_egid, orig_sgid); 35f08c3bdfSopenharmony_ci 36f08c3bdfSopenharmony_ci tst_res(TINFO, "call setegid(nobody_gid %d)", nobody_gid); 37f08c3bdfSopenharmony_ci SAFE_SETEGID(nobody_gid); 38f08c3bdfSopenharmony_ci 39f08c3bdfSopenharmony_ci SAFE_GETRESGID(&cur_rgid, &cur_egid, &cur_sgid); 40f08c3bdfSopenharmony_ci tst_res(TINFO, "getresgid() reports rgid: %d, egid: %d, sgid: %d", 41f08c3bdfSopenharmony_ci cur_rgid, cur_egid, cur_sgid); 42f08c3bdfSopenharmony_ci 43f08c3bdfSopenharmony_ci TST_EXP_EQ_LU(nobody_gid, cur_egid); 44f08c3bdfSopenharmony_ci TST_EXP_EQ_LU(orig_rgid, cur_rgid); 45f08c3bdfSopenharmony_ci TST_EXP_EQ_LU(orig_sgid, cur_sgid); 46f08c3bdfSopenharmony_ci 47f08c3bdfSopenharmony_ci SAFE_SETEGID(orig_egid); 48f08c3bdfSopenharmony_ci SAFE_GETRESGID(&cur_rgid, &cur_egid, &orig_sgid); 49f08c3bdfSopenharmony_ci TST_EXP_EQ_LU(orig_egid, cur_egid); 50f08c3bdfSopenharmony_ci} 51f08c3bdfSopenharmony_ci 52f08c3bdfSopenharmony_cistatic struct tst_test test = { 53f08c3bdfSopenharmony_ci .setup = setup, 54f08c3bdfSopenharmony_ci .test_all = setegid_verify, 55f08c3bdfSopenharmony_ci .needs_root = 1 56f08c3bdfSopenharmony_ci}; 57