From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Se5Jh-0007De-JR for ltp-list@lists.sourceforge.net; Mon, 11 Jun 2012 14:10:01 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by sog-mx-1.v43.ch3.sourceforge.com with esmtp (Exim 4.76) id 1Se5Jd-0002Lw-Cv for ltp-list@lists.sourceforge.net; Mon, 11 Jun 2012 14:10:01 +0000 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id q5BE9pd1010008 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 11 Jun 2012 10:09:52 -0400 Received: from dustball.brq.redhat.com (dustball.brq.redhat.com [10.34.26.57]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id q5BE9o0t029756 for ; Mon, 11 Jun 2012 10:09:51 -0400 Message-ID: <4FD5FC2E.5050202@redhat.com> Date: Mon, 11 Jun 2012 16:09:50 +0200 From: Jan Stancek MIME-Version: 1.0 References: In-Reply-To: Content-Type: multipart/mixed; boundary="------------080007010309030704000505" Subject: [LTP] [PATCH v3 3/3] syscalls/cma: add errno tests List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ltp-list-bounces@lists.sourceforge.net To: ltp-list@lists.sourceforge.net This is a multi-part message in MIME format. --------------080007010309030704000505 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Based on proposed man page: http://ozlabs.org/~cyeoh/cma/process_vm_readv.txt Signed-off-by: Jan Stancek --- runtest/syscalls | 3 + testcases/kernel/syscalls/cma/process_vm01.c | 431 ++++++++++++++++++++++++++ 2 files changed, 434 insertions(+), 0 deletions(-) create mode 100644 testcases/kernel/syscalls/cma/process_vm01.c --------------080007010309030704000505 Content-Type: text/x-patch; name="0003-syscalls-cma-add-errno-tests.patch" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="0003-syscalls-cma-add-errno-tests.patch" diff --git a/runtest/syscalls b/runtest/syscalls index e203d5e..6cdb23e 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -732,6 +732,9 @@ pread03_64 pread03_64 profil01 profil01 +process_vm_readv01 process_vm01 -r +process_vm_writev01 process_vm01 -w + pselect01 pselect01 pselect01_64 pselect01_64 diff --git a/testcases/kernel/syscalls/cma/process_vm01.c b/testcases/kernel/syscalls/cma/process_vm01.c new file mode 100644 index 0000000..d5bec69 --- /dev/null +++ b/testcases/kernel/syscalls/cma/process_vm01.c @@ -0,0 +1,431 @@ +/* + * Copyright (C) 2012 Linux Test Project, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of version 2 of the GNU General Public + * License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * Further, this software is distributed without any warranty that it + * is free of the rightful claim of any third person regarding + * infringement or the like. Any license provided herein, whether + * implied or otherwise, applies only to this software file. Patent + * licenses, if any, provided herein do not apply to combinations of + * this program with other software, or any other product whatsoever. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +/* + * errno tests shared by process_vm_readv, process_vm_writev tests. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "config.h" +#include "test.h" +#include "usctest.h" +#include "safe_macros.h" +#include "process_vm.h" + +struct process_vm_params { + int len; + char *ldummy; + char *rdummy; + pid_t pid; + struct iovec *lvec; + unsigned long liovcnt; + struct iovec *rvec; + unsigned long riovcnt; + unsigned long flags; +}; + +static int rflag; +static int wflag; + +static option_t options[] = { + {"r", &rflag, NULL}, + {"w", &wflag, NULL}, + {NULL, NULL, NULL} +}; + +static char TCID_readv[] = "process_vm_readv"; +static char TCID_writev[] = "process_vm_writev"; +char *TCID = "cma01"; +int TST_TOTAL = 1; +static void (*cma_test_params)(struct process_vm_params *params) = NULL; + +static void setup(char *argv[]); +static void cleanup(void); +static void help(void); + +static void cma_test_params_read(struct process_vm_params *params); +static void cma_test_params_write(struct process_vm_params *params); +static void cma_test_errnos(void); + +int main(int argc, char *argv[]) +{ + int lc; + char *msg; + + msg = parse_opts(argc, argv, options, &help); + if (msg != NULL) + tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); + + setup(argv); + for (lc = 0; TEST_LOOPING(lc); lc++) { + Tst_count = 0; + cma_test_errnos(); + } + cleanup(); + tst_exit(); +} + +static void setup(char *argv[]) +{ + tst_require_root(NULL); + + if (rflag && wflag) + tst_brkm(TBROK, NULL, "Parameters -r -w can not be used" + " at the same time."); + else if (rflag) { + TCID = TCID_readv; +#if defined(__NR_process_vm_readv) + cma_test_params = cma_test_params_read; +#else + tst_brkm(TCONF, NULL, "process_vm_readv does not" + " exist on your system."); +#endif + } else if (wflag) { + TCID = TCID_writev; +#if defined(__NR_process_vm_writev) + cma_test_params = cma_test_params_write; +#else + tst_brkm(TCONF, NULL, "process_vm_writev does not" + " exist on your system."); +#endif + } else + tst_brkm(TBROK, NULL, "Parameter missing, required -r or -w."); + TEST_PAUSE; +} + +static void cleanup(void) +{ + TEST_CLEANUP; +} + +static void help(void) +{ + printf(" -r Use process_vm_readv\n"); + printf(" -w Use process_vm_writev\n"); +} + +static void cma_test_params_read(struct process_vm_params *params) +{ + TEST(test_process_vm_readv(params->pid, + params->lvec, params->liovcnt, + params->rvec, params->riovcnt, + params->flags)); +} + +static void cma_test_params_write(struct process_vm_params *params) +{ + TEST(test_process_vm_writev(params->pid, + params->lvec, params->liovcnt, + params->rvec, params->riovcnt, + params->flags)); +} + +static int cma_check_ret(long expected_ret, long act_ret) +{ + if (expected_ret == act_ret) { + tst_resm(TPASS, "expected ret success - " + "returned value = %ld", act_ret); + } else { + tst_resm(TFAIL, "unexpected failure - " + "returned value = %ld, expected: %ld", + act_ret, expected_ret); + return 1; + } + return 0; +} + +static int cma_check_errno(long expected_errno) +{ + if (TEST_ERRNO == expected_errno) + tst_resm(TPASS|TTERRNO, "expected failure"); + else if (TEST_ERRNO == 0) { + tst_resm(TFAIL, "call succeeded unexpectedly"); + return 1; + } else { + tst_resm(TFAIL|TTERRNO, "unexpected failure - " + "expected = %ld : %s, actual", + expected_errno, strerror(expected_errno)); + return 2; + } + return 0; +} + +static struct process_vm_params *cma_alloc_sane_params() +{ + struct process_vm_params *sane_params; + int len; + + len = getpagesize(); + sane_params = SAFE_MALLOC(NULL, sizeof(struct process_vm_params)); + sane_params->len = len; + sane_params->ldummy = SAFE_MALLOC(NULL, len); + sane_params->rdummy = SAFE_MALLOC(NULL, len); + + sane_params->lvec = SAFE_MALLOC(NULL, sizeof(struct iovec)); + sane_params->lvec->iov_base = sane_params->ldummy; + sane_params->lvec->iov_len = len; + sane_params->liovcnt = 1; + + sane_params->rvec = SAFE_MALLOC(NULL, sizeof(struct iovec)); + sane_params->rvec->iov_base = sane_params->rdummy; + sane_params->rvec->iov_len = len; + sane_params->riovcnt = 1; + + sane_params->flags = 0; + sane_params->pid = getpid(); + + return sane_params; +} + +static void cma_free_params(struct process_vm_params *params) +{ + if (params) { + free(params->ldummy); + free(params->rdummy); + free(params->lvec); + free(params->rvec); + free(params); + } +} + +static void cma_test_sane_params(void) +{ + struct process_vm_params *sane_params; + + sane_params = cma_alloc_sane_params(); + tst_resm(TINFO, "test_sane_params"); + cma_test_params(sane_params); + cma_check_ret(sane_params->len, TEST_RETURN); + cma_free_params(sane_params); +} + +static void cma_test_flags(void) +{ + struct process_vm_params *params; + long flags[] = { -INT_MAX, -1, 1, INT_MAX, 0 }; + int flags_size = sizeof(flags)/sizeof(flags[0]); + int i; + + params = cma_alloc_sane_params(); + for (i = 0; i < flags_size; i++) { + params->flags = flags[i]; + tst_resm(TINFO, "test_flags, flags=%ld", flags[i]); + cma_test_params(params); + /* atm. only flags == 0 is allowed, everything else + * should fail with EINVAL */ + if (flags[i] != 0) { + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EINVAL); + } else { + cma_check_ret(params->len, TEST_RETURN); + } + } + cma_free_params(params); +} + +static void cma_test_iov_len_overflow(void) +{ + struct process_vm_params *params; + ssize_t maxlen = -1; + params = cma_alloc_sane_params(); + + params->lvec->iov_len = maxlen; + params->rvec->iov_len = maxlen; + tst_resm(TINFO, "test_iov_len_overflow"); + cma_test_params(params); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EINVAL); + cma_free_params(params); +} + +static void cma_test_iov_invalid(void) +{ + struct process_vm_params *sane_params; + struct process_vm_params params_copy; + + sane_params = cma_alloc_sane_params(); + /* make a shallow copy we can 'damage' */ + + params_copy = *sane_params; + tst_resm(TINFO, "test_iov_invalid - lvec->iov_base"); + params_copy.lvec->iov_base = (void *)-1; + cma_test_params(¶ms_copy); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EFAULT); + + params_copy = *sane_params; + tst_resm(TINFO, "test_iov_invalid - rvec->iov_base"); + params_copy.rvec->iov_base = (void *)-1; + cma_test_params(¶ms_copy); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EFAULT); + + params_copy = *sane_params; + tst_resm(TINFO, "test_iov_invalid - lvec"); + params_copy.lvec = (void *)-1; + cma_test_params(¶ms_copy); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EFAULT); + + params_copy = *sane_params; + tst_resm(TINFO, "test_iov_invalid - rvec"); + params_copy.rvec = (void *)-1; + cma_test_params(¶ms_copy); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EFAULT); + + cma_free_params(sane_params); +} + +static void cma_test_invalid_pid(void) +{ + const char pid_max[]="/proc/sys/kernel/pid_max"; + pid_t invalid_pid = -1; + struct process_vm_params *params; + FILE *fp; + char buff[512]; + + params = cma_alloc_sane_params(); + tst_resm(TINFO, "test_invalid_pid"); + params->pid = invalid_pid; + cma_test_params(params); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(ESRCH); + cma_free_params(params); + + fp = fopen(pid_max, "r"); + if (fp == NULL) + tst_brkm(TBROK, cleanup, + "Could not open %s", pid_max); + if (!fgets(buff, sizeof(buff), fp)) + tst_brkm(TBROK, cleanup, + "Could not read %s", pid_max); + fclose(fp); + invalid_pid = atol(buff) + 1; + + params = cma_alloc_sane_params(); + params->pid = invalid_pid; + cma_test_params(params); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(ESRCH); + cma_free_params(params); +} + +static void cma_test_invalid_perm(void) +{ + char nobody_uid[] = "nobody"; + struct passwd *ltpuser; + int status; + struct process_vm_params *params; + pid_t child_pid; + pid_t parent_pid; + int ret = 0; + + tst_resm(TINFO, "test_invalid_perm"); + parent_pid = getpid(); + child_pid = fork(); + switch (child_pid) { + case -1: + tst_brkm(TBROK|TERRNO, cleanup, "fork"); + break; + case 0: + ltpuser = getpwnam(nobody_uid); + if (ltpuser == NULL) + tst_brkm(TBROK|TERRNO, NULL, + "getpwnam failed"); + if (setuid(ltpuser->pw_uid) == -1) + tst_brkm(TBROK|TERRNO, NULL, + "setuid(%u) failed", ltpuser->pw_uid); + + params = cma_alloc_sane_params(); + params->pid = parent_pid; + cma_test_params(params); + ret |= cma_check_ret(-1, TEST_RETURN); + ret |= cma_check_errno(EPERM); + cma_free_params(params); + exit(ret); + default: + if (waitpid(child_pid, &status, 0) == -1) + tst_brkm(TBROK|TERRNO, cleanup, "waitpid"); + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) + tst_resm(TFAIL, "child returns %d", status); + } +} + +static void cma_test_invalid_protection(void) +{ + struct process_vm_params *sane_params; + struct process_vm_params params_copy; + void *p; + + sane_params = cma_alloc_sane_params(); + /* make a shallow copy we can 'damage' */ + + p = mmap(NULL, getpagesize(), PROT_NONE, + MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); + if (p == MAP_FAILED) + tst_brkm(TBROK|TERRNO, cleanup, "mmap"); + + params_copy = *sane_params; + params_copy.lvec->iov_base = p; + tst_resm(TINFO, "test_invalid_protection lvec"); + cma_test_params(¶ms_copy); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EFAULT); + + params_copy = *sane_params; + params_copy.rvec->iov_base = p; + tst_resm(TINFO, "test_invalid_protection rvec"); + cma_test_params(¶ms_copy); + cma_check_ret(-1, TEST_RETURN); + cma_check_errno(EFAULT); + + if (munmap(p, getpagesize()) < 0) + tst_brkm(TBROK|TERRNO, cleanup, "munmap"); + + cma_free_params(sane_params); +} + +static void cma_test_errnos() +{ + cma_test_sane_params(); + cma_test_flags(); + cma_test_iov_len_overflow(); + cma_test_iov_invalid(); + cma_test_invalid_pid(); + cma_test_invalid_perm(); + cma_test_invalid_protection(); 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