| /* |
| * Copyright (c) International Business Machines Corp., 2001 |
| * Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved. |
| * |
| * 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 would 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 the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| * This is the main of your user space test program, |
| * which will open the correct kernel bioule, find the |
| * file descriptor value and use that value to make |
| * ioctl calls to the system |
| * |
| * Use the ki_generic and other ki_testname functions |
| * to abstract the calls from the main |
| * |
| * FILE : user_tbio.c |
| * USAGE : kernel_space:./load_tbio.sh |
| * user_space :./test_bio |
| * |
| * DESCRIPTION : The bioule will test block i/o layer for kernel 2.5 |
| * REQUIREMENTS: |
| * 1) glibc 2.1.91 or above. |
| * |
| * HISTORY : |
| * 11/19/2003 Kai Zhao (ltcd3@cn.ibm.com) |
| * |
| * CODE COVERAGE: 74.9% - fs/bio.c (Total Coverage) |
| * |
| */ |
| |
| #define _GNU_SOURCE |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| #include <sys/ioctl.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <linux/kernel.h> |
| #include <unistd.h> |
| #include <string.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| #include "tst_module.h" |
| |
| #include "../tbio_kernel/tbio.h" |
| |
| char *TCID = TBIO_DEVICE_NAME; |
| |
| static const char module_name[] = "ltp_tbio.ko"; |
| static int module_loaded; |
| static int tbio_fd = -1; |
| |
| void cleanup(void) |
| { |
| |
| if (tbio_fd != -1) { |
| close(tbio_fd); |
| tbio_fd = -1; |
| } |
| |
| if (module_loaded) |
| tst_module_unload(NULL, module_name); |
| |
| if (unlink(DEVICE_NAME) && (errno != ENOENT)) |
| tst_brkm(TBROK | TERRNO, NULL, "unlink failed"); |
| } |
| |
| |
| void setup(void) |
| { |
| dev_t devt; |
| struct stat st; |
| unsigned int i, valid_node_created; |
| |
| tst_require_root(NULL); |
| |
| if (tst_kvercmp(2, 6, 0) < 0) { |
| tst_brkm(TCONF, NULL, |
| "Test must be run with kernel 2.6 or newer"); |
| } |
| |
| tst_module_load(cleanup, module_name, NULL); |
| module_loaded = 1; |
| |
| SAFE_FILE_SCANF(cleanup, "/sys/class/block/tbio/dev", |
| "%d:0", &TBIO_MAJOR); |
| |
| devt = makedev(TBIO_MAJOR, 0); |
| |
| /* |
| * Wait until udev creates the device node. |
| * If the node is not created or invalid, create it manually. |
| */ |
| valid_node_created = 0; |
| for (i = 0; i < 50; i++) { |
| if (stat(DEVICE_NAME, &st)) { |
| if (errno != ENOENT) |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "stat() failed"); |
| } else { |
| if ((st.st_mode & S_IFBLK) && (st.st_rdev == devt)) { |
| valid_node_created = 1; |
| break; |
| } |
| } |
| |
| usleep(100000); |
| } |
| |
| if (!valid_node_created) { |
| tst_resm(TINFO, |
| "The device file was not created by udev, " |
| "proceeding with manual creation"); |
| |
| if (unlink(DEVICE_NAME) && (errno != ENOENT)) |
| tst_brkm(TBROK | TERRNO, cleanup, "unlink() failed"); |
| if (mknod(DEVICE_NAME, S_IFBLK | S_IRUSR | S_IWUSR | |
| S_IRGRP | S_IWGRP, devt)) |
| tst_brkm(TBROK | TERRNO, cleanup, "mknod() failed"); |
| } |
| |
| tbio_fd = open(DEVICE_NAME, O_RDWR); |
| if (tbio_fd < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "open of %s failed", |
| DEVICE_NAME); |
| } |
| |
| tst_resm(TINFO, "Device opened successfully "); |
| } |
| |
| |
| int tbio_to_dev(int fd, int flag) |
| { |
| int rc; |
| tbio_interface_t bif; |
| |
| memset(&bif, 0, sizeof(tbio_interface_t)); |
| rc = posix_memalign(&bif.data, 512, 1024); |
| if (rc) { |
| tst_resm(TINFO, "posix_memalign failed"); |
| return -1; |
| } |
| |
| strcpy(bif.data, "User space data"); |
| bif.data_len = 1024; |
| bif.direction = TBIO_TO_DEV; |
| bif.cmd = SAFE_MALLOC(cleanup, 6); |
| if (bif.cmd == NULL) { |
| tst_resm(TINFO, "malloc cmd space failed"); |
| free(bif.data); |
| return -1; |
| } |
| strcpy(bif.cmd, "WRITE"); |
| bif.cmd_len = 6; |
| |
| rc = ioctl(fd, flag, &bif); |
| if (rc) { |
| free(bif.data); |
| free(bif.cmd); |
| tst_resm(TINFO, "Ioctl error for TBIO_TO_DEV"); |
| return rc; |
| } |
| |
| free(bif.data); |
| free(bif.cmd); |
| |
| return 0; |
| |
| } |
| |
| int tbio_from_dev(int fd, int flag) |
| { |
| int rc; |
| tbio_interface_t bif; |
| |
| memset(&bif, 0, sizeof(tbio_interface_t)); |
| rc = posix_memalign(&bif.data, 512, 1024); |
| if (rc) { |
| tst_resm(TINFO, "posix_memalign failed"); |
| return -1; |
| } |
| |
| memset(bif.data, 0, 1024); |
| |
| bif.data_len = 1024; |
| bif.direction = TBIO_FROM_DEV; |
| bif.cmd = SAFE_MALLOC(cleanup, 5); |
| if (bif.cmd == NULL) { |
| tst_resm(TINFO, "malloc cmd space failed"); |
| free(bif.data); |
| return -1; |
| } |
| strcpy(bif.cmd, "READ"); |
| bif.cmd_len = 5; |
| |
| rc = ioctl(fd, flag, &bif); |
| if (rc) { |
| free(bif.data); |
| free(bif.cmd); |
| tst_resm(TINFO, "Ioctl error for TBIO_TO_DEV"); |
| return rc; |
| } |
| |
| if (strcmp(bif.data, "User space data")) { |
| tst_resm(TINFO, "TBIO_FROM_DEV failed"); |
| free(bif.data); |
| free(bif.cmd); |
| return -1; |
| } |
| |
| free(bif.data); |
| free(bif.cmd); |
| |
| return 0; |
| |
| } |
| |
| int tbio_split_to_dev(int fd, int flag) |
| { |
| int rc; |
| tbio_interface_t bif; |
| |
| memset(&bif, 0, sizeof(tbio_interface_t)); |
| rc = posix_memalign(&bif.data, 512, 2048); |
| if (rc) { |
| tst_resm(TINFO, "posix_memalign failed"); |
| return -1; |
| } |
| |
| strcpy(bif.data, "User space data"); |
| bif.data_len = 2048; |
| bif.direction = TBIO_TO_DEV; |
| bif.cmd = SAFE_MALLOC(cleanup, 6); |
| if (bif.cmd == NULL) { |
| tst_resm(TINFO, "malloc cmd space failed"); |
| free(bif.data); |
| return -1; |
| } |
| strcpy(bif.cmd, "WRITE"); |
| bif.cmd_len = 6; |
| |
| rc = ioctl(fd, flag, &bif); |
| if (rc) { |
| free(bif.data); |
| free(bif.cmd); |
| tst_resm(TINFO, "Ioctl error for TBIO_TO_DEV"); |
| return rc; |
| } |
| |
| free(bif.data); |
| free(bif.cmd); |
| |
| return 0; |
| |
| } |
| |
| int ki_generic(int fd, int flag) |
| { |
| tbio_interface_t bif; |
| |
| int rc = ioctl(fd, flag, &bif); |
| if (rc) |
| tst_resm(TINFO | TERRNO, "ioctl error"); |
| |
| return rc; |
| } |
| |
| |
| int main(void) |
| { |
| setup(); |
| |
| if (ki_generic(tbio_fd, LTP_TBIO_ALLOC)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_ALLOC test"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_ALLOC test"); |
| |
| if (ki_generic(tbio_fd, LTP_TBIO_CLONE)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_CLONE test"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_CLONE test"); |
| |
| if (ki_generic(tbio_fd, LTP_TBIO_GET_NR_VECS)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_GET_NR_VECS test"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_GET_NR_VECS test"); |
| |
| if (ki_generic(tbio_fd, LTP_TBIO_ADD_PAGE)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_ADD_PAGE test"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_ADD_PAGE test"); |
| |
| if (tbio_split_to_dev(tbio_fd, LTP_TBIO_SPLIT)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_SPLIT:write to dev"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_SPLIT:write to dev"); |
| |
| if (tbio_to_dev(tbio_fd, LTP_TBIO_DO_IO)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_DO_IO:write to dev"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_DO_IO:write to dev"); |
| |
| if (tbio_from_dev(tbio_fd, LTP_TBIO_DO_IO)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_DO_IO:read from dev"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_DO_IO:read from dev"); |
| |
| if (ki_generic(tbio_fd, LTP_TBIO_PUT)) |
| tst_resm(TFAIL, "failed on LTP_TBIO_PUT test"); |
| else |
| tst_resm(TPASS, "success on LTP_TBIO_PUT test"); |
| |
| cleanup(); |
| |
| tst_exit(); |
| } |