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[LTP] [PATCH v2 2/3] new syscall test: migrate_pages01
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From: Jan S. <jst...@re...> - 2012-10-18 12:56:41
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errno tests for migrate_pages(2).
Note, that older kernels (~2.6.18) are likely to panic during this test.
Signed-off-by: Jan Stancek <jst...@re...>
---
runtest/syscalls | 2 +
testcases/kernel/syscalls/migrate_pages/Makefile | 32 +++
.../syscalls/migrate_pages/migrate_pages01.c | 280 ++++++++++++++++++++
.../syscalls/migrate_pages/migrate_pages_common.c | 62 +++++
.../syscalls/migrate_pages/migrate_pages_common.h | 33 +++
5 files changed, 409 insertions(+), 0 deletions(-)
create mode 100644 testcases/kernel/syscalls/migrate_pages/Makefile
create mode 100644 testcases/kernel/syscalls/migrate_pages/migrate_pages01.c
create mode 100644 testcases/kernel/syscalls/migrate_pages/migrate_pages_common.c
create mode 100644 testcases/kernel/syscalls/migrate_pages/migrate_pages_common.h
diff --git a/runtest/syscalls b/runtest/syscalls
index 6973aaa..9daf234 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -517,6 +517,8 @@ memset01 memset01
memcmp01 memcmp01
memcpy01 memcpy01
+migrate_pages01 migrate_pages01
+
mlockall01 mlockall01
mlockall02 mlockall02
mlockall03 mlockall03
diff --git a/testcases/kernel/syscalls/migrate_pages/Makefile b/testcases/kernel/syscalls/migrate_pages/Makefile
new file mode 100644
index 0000000..7168cd6
--- /dev/null
+++ b/testcases/kernel/syscalls/migrate_pages/Makefile
@@ -0,0 +1,32 @@
+#
+# Copyright (C) 2012 Linux Test Project, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+# the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#
+
+top_srcdir ?= ../../../..
+
+include $(top_srcdir)/include/mk/testcases.mk
+
+MAKE_TARGETS := $(patsubst $(abs_srcdir)/%.c,%,$(wildcard $(abs_srcdir)/*[0-9].c))
+$(MAKE_TARGETS): %: %.o migrate_pages_common.o
+
+ifeq ($(NUMA_LIBS),)
+CPPFLAGS += -Wno-unused
+endif
+CPPFLAGS += -I$(abs_srcdir)/../utils/
+
+include $(top_srcdir)/testcases/kernel/include/lib.mk
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/syscalls/migrate_pages/migrate_pages01.c b/testcases/kernel/syscalls/migrate_pages/migrate_pages01.c
new file mode 100644
index 0000000..53ced25
--- /dev/null
+++ b/testcases/kernel/syscalls/migrate_pages/migrate_pages01.c
@@ -0,0 +1,280 @@
+/*
+ * 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 for migrate_pages() syscall
+ */
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <errno.h>
+#if HAVE_NUMA_H
+#include <numa.h>
+#endif
+#if HAVE_NUMAIF_H
+#include <numaif.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <pwd.h>
+#include "config.h"
+#include "test.h"
+#include "usctest.h"
+#include "safe_macros.h"
+#include "linux_syscall_numbers.h"
+#include "numa_helper.h"
+#include "migrate_pages_common.h"
+
+char *TCID = "migrate_pages01";
+int TST_TOTAL = 1;
+
+option_t options[] = {
+ { NULL, NULL, NULL }
+};
+
+#if defined(__NR_migrate_pages) && defined(HAVE_NUMA_H)
+static unsigned long *sane_old_nodes;
+static unsigned long *sane_new_nodes;
+static int sane_nodemask_size;
+static int sane_max_node;
+
+static void setup(void);
+static void cleanup(void);
+
+static void test_sane_nodes(void)
+{
+ tst_resm(TINFO, "test_empty_mask");
+ TEST(syscall(__NR_migrate_pages, 0, sane_max_node,
+ sane_old_nodes, sane_new_nodes));
+ check_ret(0);
+}
+
+static void test_invalid_pid(void)
+{
+ const char pid_max[] = "/proc/sys/kernel/pid_max";
+ FILE *fp;
+ char buff[512];
+ pid_t invalid_pid = -1;
+
+ tst_resm(TINFO, "test_invalid_pid -1");
+ TEST(syscall(__NR_migrate_pages, invalid_pid, sane_max_node,
+ sane_old_nodes, sane_new_nodes));
+ check_ret(-1);
+ check_errno(ESRCH);
+
+ tst_resm(TINFO, "test_invalid_pid pid_max+1");
+ 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;
+ TEST(syscall(__NR_migrate_pages, invalid_pid, sane_max_node,
+ sane_old_nodes, sane_new_nodes));
+ check_ret(-1);
+ check_errno(ESRCH);
+}
+
+static void test_invalid_masksize(void)
+{
+ tst_resm(TINFO, "test_invalid_masksize");
+ TEST(syscall(__NR_migrate_pages, 0, -1, sane_old_nodes,
+ sane_new_nodes));
+ check_ret(-1);
+ check_errno(EINVAL);
+}
+
+static void test_invalid_mem(void)
+{
+ unsigned long *p;
+
+ tst_resm(TINFO, "test_invalid_mem -1");
+ TEST(syscall(__NR_migrate_pages, 0, sane_max_node, -1, -1));
+ check_ret(-1);
+ check_errno(EFAULT);
+
+ tst_resm(TINFO, "test_invalid_mem invalid prot");
+ p = mmap(NULL, getpagesize(), PROT_NONE,
+ MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
+ if (p == MAP_FAILED)
+ tst_brkm(TBROK|TERRNO, cleanup, "mmap");
+ TEST(syscall(__NR_migrate_pages, 0, sane_max_node, p, p));
+ check_ret(-1);
+ check_errno(EFAULT);
+
+ if (munmap(p, getpagesize()) < 0)
+ tst_brkm(TBROK|TERRNO, cleanup, "munmap");
+ tst_resm(TINFO, "test_invalid_mem unmmaped");
+ TEST(syscall(__NR_migrate_pages, 0, sane_max_node, p, p));
+ check_ret(-1);
+ check_errno(EFAULT);
+}
+
+static void test_invalid_nodes(void)
+{
+ int *nodes;
+ int num_nodes, ret, i;
+ int invalid_node = 0;
+ unsigned long *old_nodes, *new_nodes;
+
+ tst_resm(TINFO, "test_invalid_nodes");
+ ret = get_allowed_nodes_arr(NH_MEMS, &num_nodes, &nodes);
+ if (ret < 0)
+ tst_brkm(TBROK|TERRNO, cleanup,
+ "get_allowed_nodes_arr: %d", ret);
+
+ /* get first node which is not in nodes */
+ for (i = 0; i < num_nodes; i++, invalid_node++)
+ if (invalid_node != nodes[i])
+ break;
+ if (invalid_node < sane_max_node) {
+ old_nodes = SAFE_MALLOC(NULL, sane_nodemask_size);
+ new_nodes = SAFE_MALLOC(NULL, sane_nodemask_size);
+ memcpy(old_nodes, sane_old_nodes, sane_nodemask_size);
+ memset(new_nodes, 0, sane_nodemask_size);
+ set_bit(new_nodes, invalid_node, 1);
+
+ TEST(syscall(__NR_migrate_pages, 0, sane_max_node,
+ old_nodes, new_nodes));
+ check_ret(-1);
+ check_errno(EINVAL);
+ free(old_nodes);
+ free(new_nodes);
+ } else {
+ tst_resm(TCONF, "All possible nodes are present");
+ }
+
+ free(nodes);
+}
+
+static void test_invalid_perm(void)
+{
+ char nobody_uid[] = "nobody";
+ struct passwd *ltpuser;
+ int status;
+ pid_t child_pid;
+ pid_t parent_pid;
+ int ret = 0;
+
+ tst_resm(TINFO, "test_invalid_perm");
+ parent_pid = getpid();
+ fflush(stdout);
+ 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);
+ TEST(syscall(__NR_migrate_pages, parent_pid,
+ sane_max_node, sane_old_nodes,
+ sane_new_nodes));
+ ret |= check_ret(-1);
+ ret |= check_errno(EPERM);
+ 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);
+ }
+}
+
+int main(int argc, char *argv[])
+{
+ int lc;
+ char *msg;
+
+ msg = parse_opts(argc, argv, options, NULL);
+ if (msg != NULL)
+ tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+ setup();
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+ Tst_count = 0;
+ test_sane_nodes();
+ test_invalid_pid();
+ test_invalid_masksize();
+ test_invalid_mem();
+ test_invalid_nodes();
+ test_invalid_perm();
+ }
+ cleanup();
+ tst_exit();
+}
+
+static void setup(void)
+{
+ int node, ret;
+
+ tst_require_root(NULL);
+ TEST(syscall(__NR_migrate_pages, 0, 0, NULL, NULL));
+
+ if (numa_available() == -1)
+ tst_brkm(TCONF, NULL, "NUMA not available");
+
+ ret = get_allowed_nodes(NH_MEMS, 1, &node);
+ if (ret < 0)
+ tst_brkm(TBROK|TERRNO, NULL, "get_allowed_nodes_arr: %d", ret);
+
+ sane_max_node = get_max_node();
+ sane_nodemask_size = sane_max_node/8+1;
+ sane_old_nodes = SAFE_MALLOC(NULL, sane_nodemask_size);
+ sane_new_nodes = SAFE_MALLOC(NULL, sane_nodemask_size);
+ memset(sane_old_nodes, 0, sane_nodemask_size);
+ memset(sane_new_nodes, 0, sane_nodemask_size);
+
+ set_bit(sane_old_nodes, node, 1);
+ set_bit(sane_new_nodes, node, 1);
+
+ TEST_PAUSE;
+}
+
+static void cleanup(void)
+{
+ free(sane_old_nodes);
+ free(sane_new_nodes);
+ TEST_CLEANUP;
+}
+
+#else /* __NR_migrate_pages */
+int main(void)
+{
+ tst_brkm(TCONF, NULL, "System doesn't support __NR_migrate_pages"
+ " or libnuma is not available");
+}
+#endif
diff --git a/testcases/kernel/syscalls/migrate_pages/migrate_pages_common.c b/testcases/kernel/syscalls/migrate_pages/migrate_pages_common.c
new file mode 100644
index 0000000..00b512a
--- /dev/null
+++ b/testcases/kernel/syscalls/migrate_pages/migrate_pages_common.c
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+
+#include "test.h"
+#include "usctest.h"
+#include "migrate_pages_common.h"
+
+void set_bit(unsigned long *b, unsigned int n, unsigned int v)
+{
+ if (v)
+ b[n/bitsperlong] |= 1UL << (n % bitsperlong);
+ else
+ b[n/bitsperlong] &= ~(1UL << (n % bitsperlong));
+}
+
+int check_ret(long expected_ret)
+{
+ if (expected_ret == TEST_RETURN) {
+ tst_resm(TPASS, "expected ret success - "
+ "returned value = %ld", TEST_RETURN);
+ return 0;
+ } else
+ tst_resm(TFAIL, "unexpected failure - "
+ "returned value = %ld, expected: %ld",
+ TEST_RETURN, expected_ret);
+ return 1;
+}
+
+int check_errno(long expected_errno)
+{
+ if (TEST_ERRNO == expected_errno) {
+ tst_resm(TPASS|TTERRNO, "expected failure");
+ return 0;
+ } else if (TEST_ERRNO == 0)
+ tst_resm(TFAIL, "call succeeded unexpectedly");
+ else
+ tst_resm(TFAIL|TTERRNO, "unexpected failure - "
+ "expected = %ld : %s, actual",
+ expected_errno, strerror(expected_errno));
+ return 1;
+}
diff --git a/testcases/kernel/syscalls/migrate_pages/migrate_pages_common.h b/testcases/kernel/syscalls/migrate_pages/migrate_pages_common.h
new file mode 100644
index 0000000..d821b07
--- /dev/null
+++ b/testcases/kernel/syscalls/migrate_pages/migrate_pages_common.h
@@ -0,0 +1,33 @@
+/*
+ * 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.
+ */
+
+#ifndef MIGRATE_PAGES_COMMON_H
+#define MIGRATE_PAGES_COMMON_H
+
+#define bitsperlong (8 * sizeof(unsigned long))
+
+void set_bit(unsigned long *b, unsigned int n, unsigned int v);
+int check_ret(long expected_ret);
+int check_errno(long expected_errno);
+#endif
--
1.7.1
|