| /* |
| * Copyright (c) 2000-2003 Silicon Graphics, Inc. |
| * 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. |
| * |
| * 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 |
| */ |
| |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <fcntl.h> |
| |
| #include <xfs/xfs.h> |
| #include <xfs/jdm.h> |
| |
| /* simple test program to try out a bunch of xfsctls: |
| * XFS_IOC_FSCOUNTS |
| * XFS_IOC_GET_RESBLKS |
| * XFS_IOC_SET_RESBLKS |
| * XFS_IOC_PATH_TO_FSHANDLE |
| * XFS_IOC_PATH_TO_HANDLE |
| * XFS_IOC_FD_TO_HANDLE |
| * XFS_IOC_OPEN_BY_HANDLE |
| * XFS_IOC_READLINK_BY_HANDLE |
| */ |
| |
| |
| void fscounts(char *fname, int fsfd) |
| { |
| xfs_fsop_counts_t counts; |
| int ret; |
| |
| ret=xfsctl(fname, fsfd, XFS_IOC_FSCOUNTS, &counts); |
| if (ret) { |
| perror("xfsctl(XFS_IOC_FSCOUNTS)"); |
| exit(1); |
| } |
| |
| printf("XFS_IOC_FSCOUNTS-\n freedata: %lld freertx: %lld freeino: %lld allocino: %lld\n", |
| (long long)counts.freedata, (long long)counts.freertx, |
| (long long)counts.freeino, (long long)counts.allocino); |
| } |
| |
| __u64 getresblks(char *fname, int fsfd) |
| { |
| xfs_fsop_resblks_t res; |
| int ret; |
| |
| ret=xfsctl(fname, fsfd, XFS_IOC_GET_RESBLKS, &res); |
| if (ret) { |
| perror("xfsctl(XFS_IOC_GET_RESBLKS)"); |
| exit(1); |
| } |
| |
| printf("XFS_IOC_GET_RESBLKS-\n resblks: %lld blksavail: %lld\n", |
| (long long)res.resblks, (long long)res.resblks_avail); |
| |
| return res.resblks; |
| } |
| |
| __u64 setresblks(char *fname, int fsfd, __u64 blks) |
| { |
| xfs_fsop_resblks_t res; |
| int ret; |
| |
| res.resblks=blks; |
| ret=xfsctl(fname, fsfd, XFS_IOC_SET_RESBLKS, &res); |
| if (ret) { |
| perror("xfsctl(XFS_IOC_SET_RESBLKS)"); |
| exit(1); |
| } |
| |
| printf("XFS_IOC_SET_RESBLKS-\n resblks: %lld blksavail: %lld\n", |
| (long long)res.resblks, (long long)res.resblks_avail); |
| |
| return res.resblks; |
| } |
| |
| void handle_print(void *handle, int handlen) |
| { |
| char *p=handle; |
| if (!handle||!handlen) { |
| printf("%s",handle?"<zero len>":"<NULL>"); |
| return; |
| }; |
| |
| printf("#"); |
| while (handlen--) |
| printf("%02x", *p++); |
| } |
| |
| void stat_print(int fd) |
| { |
| struct stat buf; |
| |
| if (fstat(fd, &buf)) { |
| perror("stat"); |
| exit(1); |
| } |
| printf("dev: %llu ino: %llu mode: %o\n", |
| (unsigned long long)buf.st_dev, (unsigned long long)buf.st_ino, buf.st_mode); |
| } |
| |
| |
| void handle(char *fname, int fsfd, char *path) |
| { |
| xfs_fsop_handlereq_t handle; |
| char buffer[1024]; |
| char link[1024]; |
| int ret; |
| __u32 len; |
| __u32 linklen; |
| int fd; |
| |
| handle.path=path; |
| handle.ohandle=buffer; |
| handle.ohandlen=&len; |
| ret=xfsctl(fname, fsfd, XFS_IOC_PATH_TO_FSHANDLE, &handle); |
| if (ret) { |
| perror("xfsctl(XFS_IOC_PATH_TO_FSHANDLE)"); |
| exit(1); |
| } |
| printf("XFS_IOC_PATH_TO_FSHANDLE-\n handle: "); |
| handle_print(handle.ohandle, *handle.ohandlen); |
| printf("\n"); |
| |
| fd=open(path,O_RDONLY); |
| if (fd<0) { |
| perror("open"); |
| exit(1); |
| } |
| handle.path=NULL; |
| handle.fd=fd; |
| handle.ohandle=buffer; |
| handle.ohandlen=&len; |
| ret=xfsctl(fname, fsfd, XFS_IOC_FD_TO_HANDLE, &handle); |
| if (ret) { |
| perror("ioctl(XFS_IOC_FD_TO_HANDLE)"); |
| exit(1); |
| } |
| |
| printf("XFS_IOC_FD_TO_HANDLE-\n path: %s\n handle: ", path); |
| handle_print(handle.ohandle, *handle.ohandlen); |
| printf("\n"); |
| |
| close(fd); |
| |
| handle.path=NULL; |
| handle.fd=-1; |
| handle.ihandle=buffer; |
| handle.ihandlen=len; |
| handle.ohandle=NULL; |
| handle.ohandlen=NULL; |
| ret=xfsctl(fname, fsfd, XFS_IOC_OPEN_BY_HANDLE, &handle); |
| if (ret<0) { |
| perror("xfsctl(XFS_IOC_OPEN_BY_HANDLE)"); |
| exit(1); |
| } |
| printf("XFS_IOC_OPEN_BY_HANDLE-\n handle: "); |
| handle_print(handle.ihandle, handle.ihandlen); |
| printf("\n fd: %d\n stat- ", ret); |
| stat_print(ret); |
| close(ret); |
| |
| handle.path=path; |
| handle.ohandle=buffer; |
| handle.ohandlen=&len; |
| ret=xfsctl(fname, fsfd, XFS_IOC_PATH_TO_HANDLE, &handle); |
| if (ret) { |
| perror("xfsctl(XFS_IOC_PATH_TO_HANDLE)"); |
| exit(1); |
| } |
| printf("XFS_IOC_PATH_TO_HANDLE-\n path: %s\n handle: ", path); |
| handle_print(handle.ohandle, *handle.ohandlen); |
| printf("\n"); |
| |
| handle.path=NULL; |
| handle.fd=-1; |
| handle.ihandle=buffer; |
| handle.ihandlen=len; |
| handle.ohandle=link; |
| linklen=sizeof(link); |
| handle.ohandlen=&linklen; |
| ret=xfsctl(fname, fsfd, XFS_IOC_READLINK_BY_HANDLE, &handle); |
| if (ret<0) { |
| perror("xfsctl(XFS_IOC_READLINK_BY_HANDLE)"); |
| fprintf(stderr,"ERROR IGNORED\n"); |
| } else { |
| printf("XFS_IOC_READLINK_BY_HANDLE-\n handle: "); |
| handle_print(handle.ihandle, handle.ihandlen); |
| printf("\n link=\"%*.*s\"\n", |
| ret, ret, (char*)handle.ohandle); |
| } |
| } |
| |
| int |
| main(int argc, char **argv) |
| { |
| int fsfd; |
| |
| if (argc != 3) { |
| fprintf(stderr,"usage: %s <filesystem> <file/link in FS>\n", |
| argv[0]); |
| exit(0); |
| } |
| |
| fsfd = open(argv[1], O_RDONLY); |
| if (fsfd < 0) { |
| perror("open"); |
| exit(1); |
| } |
| |
| /* XFS_IOC_FSCOUNTS */ |
| fscounts(argv[0], fsfd); |
| /* XFS_IOC_GET_RESBLKS & XFS_IOC_SET_RESBLKS */ |
| getresblks(argv[0], fsfd); |
| setresblks(argv[0], fsfd, 1000); |
| getresblks(argv[0], fsfd); |
| setresblks(argv[0], fsfd, 0); |
| /* TODO - XFS_IOC_FSINUMBERS */ |
| |
| /* XFS_IOC_PATH_TO_FSHANDLE */ |
| /* XFS_IOC_PATH_TO_HANDLE */ |
| /* XFS_IOC_FD_TO_HANDLE */ |
| /* XFS_IOC_OPEN_BY_HANDLE */ |
| /* XFS_IOC_READLINK_BY_HANDLE */ |
| handle(argv[0], fsfd, argv[2]); |
| |
| return 0; |
| } |