146283Sdfr/*- 246283Sdfr * Copyright (c) 2017 Enji Cooper <ngie@freebsd.org> 3130803Smarcel * 498944Sobrien * Redistribution and use in source and binary forms, with or without 546283Sdfr * modification, are permitted provided that the following conditions 698944Sobrien * are met: 746283Sdfr * 1. Redistributions of source code must retain the above copyright 898944Sobrien * notice, this list of conditions and the following disclaimer. 998944Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1098944Sobrien * notice, this list of conditions and the following disclaimer in the 1198944Sobrien * documentation and/or other materials provided with the distribution. 1246283Sdfr * 1398944Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1498944Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1598944Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1698944Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1746283Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1898944Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 1998944Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2098944Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2198944Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2298944Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2346283Sdfr * SUCH DAMAGE. 2446283Sdfr */ 2546283Sdfr 2646283Sdfr#include <sys/cdefs.h> 2746283Sdfr__FBSDID("$FreeBSD: stable/11/lib/libkvm/tests/kvm_geterr_test.c 346920 2019-04-29 19:36:46Z ngie $"); 2846283Sdfr 2946283Sdfr#include <sys/param.h> 3046283Sdfr#include <errno.h> 3146283Sdfr#include <fcntl.h> 3246283Sdfr#include <kvm.h> 3398944Sobrien#include <limits.h> 3498944Sobrien#include <signal.h> 3598944Sobrien#include <stdio.h> 3698944Sobrien#include <stdlib.h> 3798944Sobrien 3898944Sobrien#include <atf-c.h> 3998944Sobrien 40130803Smarcel#include "kvm_private.h" 41130803Smarcel 4246283Sdfr#include "kvm_test_common.h" 4346283Sdfr 4446283SdfrATF_TC(kvm_geterr_negative_test_NULL); 4546283SdfrATF_TC_HEAD(kvm_geterr_negative_test_NULL, tc) 4646283Sdfr{ 47130803Smarcel 48130803Smarcel atf_tc_set_md_var(tc, "descr", 4946283Sdfr "test that kvm_geterr(NULL) returns NULL"); 5046283Sdfr} 5146283Sdfr 5246283SdfrATF_TC_BODY(kvm_geterr_negative_test_NULL, tc) 5346283Sdfr{ 5446283Sdfr 5546283Sdfr ATF_REQUIRE(!errbuf_has_error(kvm_geterr(NULL))); 5646283Sdfr} 5746283Sdfr 5846283Sdfr/* 1100090 was where kvm_open2(3) was introduced. */ 5946283Sdfr#if __FreeBSD_version >= 1100091 6046283SdfrATF_TC(kvm_geterr_positive_test_error); 6146283SdfrATF_TC_HEAD(kvm_geterr_positive_test_error, tc) 6298944Sobrien{ 6346283Sdfr 6446283Sdfr atf_tc_set_md_var(tc, "descr", 6546283Sdfr "test that kvm_geterr(kd) when kd doesn't contain an error returns \"\""); 6646283Sdfr atf_tc_set_md_var(tc, "require.user", "root"); 6746283Sdfr} 6898944Sobrien 6998944SobrienATF_TC_BODY(kvm_geterr_positive_test_error, tc) 7098944Sobrien{ 7198944Sobrien kvm_t *kd; 7298944Sobrien char *error_msg; 7346283Sdfr 7498944Sobrien errbuf_clear(); 7598944Sobrien kd = kvm_open2(NULL, NULL, O_RDONLY, errbuf, NULL); 7698944Sobrien ATF_CHECK(!errbuf_has_error(errbuf)); 7798944Sobrien ATF_REQUIRE_MSG(kd != NULL, "kvm_open2 failed: %s", errbuf); 7898944Sobrien ATF_REQUIRE_MSG(kvm_write(kd, 0, NULL, 0) == -1, 7946283Sdfr "kvm_write succeeded unexpectedly on an O_RDONLY file descriptor"); 8046283Sdfr error_msg = kvm_geterr(kd); 8146283Sdfr ATF_CHECK(errbuf_has_error(error_msg)); 8246283Sdfr ATF_REQUIRE_MSG(kvm_close(kd) == 0, "kvm_close failed: %s", 8346283Sdfr strerror(errno)); 8446283Sdfr} 8546283Sdfr 8646283SdfrATF_TC(kvm_geterr_positive_test_no_error); 8746283SdfrATF_TC_HEAD(kvm_geterr_positive_test_no_error, tc) 8846283Sdfr{ 8946283Sdfr 9046283Sdfr atf_tc_set_md_var(tc, "descr", 9146283Sdfr "test that kvm_geterr(kd) when kd contains an error returns an error message"); 9246283Sdfr atf_tc_set_md_var(tc, "require.user", "root"); 9346283Sdfr} 9446283Sdfr 9546283SdfrATF_TC_BODY(kvm_geterr_positive_test_no_error, tc) 9646283Sdfr{ 9746283Sdfr#define ALL_IS_WELL "that ends well" 9846283Sdfr kvm_t *kd; 9946283Sdfr char *error_msg; 10046283Sdfr struct nlist nl[] = { 10146283Sdfr#define SYMNAME "_mp_maxcpus" 10298944Sobrien#define X_MAXCPUS 0 10346283Sdfr { SYMNAME, 0, 0, 0, 0 }, 10446283Sdfr { NULL, 0, 0, 0, 0 }, 10546283Sdfr }; 10646283Sdfr ssize_t rc; 10746283Sdfr int mp_maxcpus, retcode; 10846283Sdfr 10946283Sdfr errbuf_clear(); 11046283Sdfr kd = kvm_open2(NULL, NULL, O_RDONLY, errbuf, NULL); 11146283Sdfr ATF_CHECK(!errbuf_has_error(errbuf)); 11246283Sdfr ATF_REQUIRE_MSG(kd != NULL, "kvm_open2 failed: %s", errbuf); 11346283Sdfr retcode = kvm_nlist(kd, nl); 11446283Sdfr ATF_REQUIRE_MSG(retcode != -1, 11546283Sdfr "kvm_nlist failed (returned %d): %s", retcode, kvm_geterr(kd)); 11646283Sdfr if (nl[X_MAXCPUS].n_type == 0) 11746283Sdfr atf_tc_skip("symbol (\"%s\") couldn't be found", SYMNAME); 11846283Sdfr _kvm_err(kd, NULL, "%s", ALL_IS_WELL); /* XXX: internal API */ 11946283Sdfr rc = kvm_read(kd, nl[X_MAXCPUS].n_value, &mp_maxcpus, 12046283Sdfr sizeof(mp_maxcpus)); 12146283Sdfr 12246283Sdfr ATF_REQUIRE_MSG(rc != -1, "kvm_read failed: %s", kvm_geterr(kd)); 12346283Sdfr error_msg = kvm_geterr(kd); 12446283Sdfr ATF_REQUIRE_MSG(strcmp(error_msg, ALL_IS_WELL) == 0, 12546283Sdfr "error message changed: %s", error_msg); 12646283Sdfr ATF_REQUIRE_MSG(kvm_close(kd) == 0, "kvm_close failed: %s", 12746283Sdfr strerror(errno)); 12846283Sdfr} 12998944Sobrien#endif 13098944Sobrien 13198944SobrienATF_TP_ADD_TCS(tp) 13298944Sobrien{ 13398944Sobrien 13498944Sobrien ATF_TP_ADD_TC(tp, kvm_geterr_negative_test_NULL); 13598944Sobrien#if __FreeBSD_version >= 1100091 13698944Sobrien ATF_TP_ADD_TC(tp, kvm_geterr_positive_test_error); 13798944Sobrien ATF_TP_ADD_TC(tp, kvm_geterr_positive_test_no_error); 13898944Sobrien#endif 13998944Sobrien 14098944Sobrien return (atf_no_error()); 14198944Sobrien} 14298944Sobrien