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Diffstat (limited to 'tests/sys/kern/exterr_test.c')
| -rw-r--r-- | tests/sys/kern/exterr_test.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/tests/sys/kern/exterr_test.c b/tests/sys/kern/exterr_test.c new file mode 100644 index 000000000000..17c84c1f8ed4 --- /dev/null +++ b/tests/sys/kern/exterr_test.c @@ -0,0 +1,108 @@ +/*- + * Copyright (C) 2025 ConnectWise, LLC. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/exterrvar.h> +#include <sys/mman.h> + +#include <atf-c.h> +#include <errno.h> +#include <exterr.h> +#include <stdio.h> + +ATF_TC(gettext_extended); +ATF_TC_HEAD(gettext_extended, tc) +{ + atf_tc_set_md_var(tc, "descr", "Retrieve an extended error message"); +} +ATF_TC_BODY(gettext_extended, tc) +{ + char exterr[UEXTERROR_MAXLEN]; + int r; + + /* + * Use an invalid call to mmap() because it supports extended error + * messages, requires no special resources, and does not need root. + */ + ATF_CHECK_ERRNO(ENOTSUP, + mmap(NULL, 0, PROT_MAX(PROT_READ) | PROT_WRITE, 0, -1, 0)); + r = uexterr_gettext(exterr, sizeof(exterr)); + ATF_CHECK_EQ(0, r); + printf("Extended error: %s\n", exterr); + /* Note: error string may need to be updated due to kernel changes */ + ATF_CHECK(strstr(exterr, "prot is not subset of max_prot") != 0); +} + +ATF_TC(gettext_noextended); +ATF_TC_HEAD(gettext_noextended, tc) +{ + atf_tc_set_md_var(tc, "descr", + "Fail to retrieve an extended error message because none exists"); +} +ATF_TC_BODY(gettext_noextended, tc) +{ + char exterr[UEXTERROR_MAXLEN]; + int r; + + ATF_CHECK_ERRNO(EINVAL, exterrctl(EXTERRCTL_UD, 0, NULL)); + r = uexterr_gettext(exterr, sizeof(exterr)); + ATF_CHECK_EQ(0, r); + ATF_CHECK_STREQ(exterr, ""); +} + +ATF_TC(gettext_noextended_after_extended); +ATF_TC_HEAD(gettext_noextended_after_extended, tc) +{ + atf_tc_set_md_var(tc, "descr", + "uexterr_gettext should not return a stale extended error message"); +} +ATF_TC_BODY(gettext_noextended_after_extended, tc) +{ + char exterr[UEXTERROR_MAXLEN]; + int r; + + /* + * First do something that will create an extended error message, but + * ignore it. + */ + ATF_CHECK_ERRNO(ENOTSUP, + mmap(NULL, 0, PROT_MAX(PROT_READ) | PROT_WRITE, 0, -1, 0)); + + /* Then do something that won't create an extended error message */ + ATF_CHECK_ERRNO(EINVAL, exterrctl(EXTERRCTL_UD, 0, NULL)); + + /* Hopefully we won't see the stale extended error message */ + r = uexterr_gettext(exterr, sizeof(exterr)); + ATF_CHECK_EQ(0, r); + ATF_CHECK_STREQ(exterr, ""); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, gettext_extended); + ATF_TP_ADD_TC(tp, gettext_noextended); + ATF_TP_ADD_TC(tp, gettext_noextended_after_extended); + + return (atf_no_error()); +} |