--- /dev/null
+/*
+ Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2013
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+/* A FUSE filesystem based on libnfs. */
+
+#define FUSE_USE_VERSION 26
+#define _FILE_OFFSET_BITS 64
+
+#include <fuse.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+
+#include <nfsc/libnfs.h>
+
+#define discard_const(ptr) ((void *)((intptr_t)(ptr)))
+
+FILE *fh=NULL;
+
+struct nfs_context *nfs = NULL;
+
+static int fuse_nfs_getattr(const char *path, struct stat *stbuf)
+{
+ int ret = 0;
+
+ memset(stbuf, 0, sizeof(struct stat));
+ ret = nfs_stat(nfs, path, stbuf);
+
+ return ret;
+}
+
+static int fuse_nfs_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
+ off_t offset, struct fuse_file_info *fi)
+{
+ struct nfsdir *nfsdir;
+ struct nfsdirent *nfsdirent;
+
+ int ret = 0;
+
+ ret = nfs_opendir(nfs, path, &nfsdir);
+ if (ret < 0) {
+ return ret;
+ }
+ while ((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
+ filler(buf, nfsdirent->name, NULL, 0);
+ }
+
+ return ret;
+}
+
+static int fuse_nfs_open(const char *path, struct fuse_file_info *fi)
+{
+ int ret = 0;
+ struct nfsfh *nfsfh;
+
+ fi->fh = 0;
+ ret = nfs_open(nfs, path, fi->flags, &nfsfh);
+ if (ret < 0) {
+ return ret;
+ }
+
+ fi->fh = (uint64_t)nfsfh;
+
+ return ret;
+}
+
+static int fuse_nfs_release(const char *path, struct fuse_file_info *fi)
+{
+ struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
+
+ nfs_close(nfs, nfsfh);
+ return 0;
+}
+
+static int fuse_nfs_read(const char *path, char *buf, size_t size,
+ off_t offset, struct fuse_file_info *fi)
+{
+ int ret = 0;
+ struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
+
+ ret = nfs_pread(nfs, nfsfh, offset, size, buf);
+
+ return ret;
+}
+
+static int fuse_nfs_write(const char *path, const char *buf, size_t size,
+ off_t offset, struct fuse_file_info *fi)
+{
+ int ret = 0;
+ struct nfsfh *nfsfh = (struct nfsfh *)fi->fh;
+
+ ret = nfs_pwrite(nfs, nfsfh, offset, size, discard_const(buf));
+
+ return ret;
+}
+
+static int fuse_nfs_create(const char *path, mode_t mode, struct fuse_file_info *fi)
+{
+ int ret = 0;
+ struct nfsfh *nfsfh;
+
+ ret = nfs_creat(nfs, path, mode, &nfsfh);
+ if (ret < 0) {
+ return ret;
+ }
+
+ fi->fh = (uint64_t)nfsfh;
+
+//nfs_chown
+
+ return ret;
+}
+
+static int fuse_nfs_utime(const char *path, struct utimbuf *times)
+{
+ int ret = 0;
+
+ ret = nfs_utime(nfs, path, times);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return ret;
+}
+
+static int fuse_nfs_unlink(const char *path)
+{
+ int ret = 0;
+
+ ret = nfs_unlink(nfs, path);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return ret;
+}
+
+static int fuse_nfs_rmdir(const char *path)
+{
+ int ret = 0;
+
+ ret = nfs_rmdir(nfs, path);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return ret;
+}
+
+static int fuse_nfs_mkdir(const char *path, mode_t mode)
+{
+ int ret = 0;
+
+ ret = nfs_mkdir(nfs, path);
+ if (ret < 0) {
+ return ret;
+ }
+ ret = nfs_chmod(nfs, path, mode);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return ret;
+}
+
+static struct fuse_operations nfs_oper = {
+ .create = fuse_nfs_create,
+ .getattr = fuse_nfs_getattr,
+ .mkdir = fuse_nfs_mkdir,
+ .open = fuse_nfs_open,
+ .read = fuse_nfs_read,
+ .readdir = fuse_nfs_readdir,
+ .release = fuse_nfs_release,
+ .rmdir = fuse_nfs_rmdir,
+ .unlink = fuse_nfs_unlink,
+ .utime = fuse_nfs_utime,
+ .write = fuse_nfs_write,
+};
+
+void print_usage(char *name)
+{
+ printf("Usage: %s [-?|--help] [-n|--nfs-share=nfs-url] mountpoint\n",
+ name);
+ exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+ int ret = 0;
+ static struct option long_opts[] = {
+ { "help", no_argument, 0, '?' },
+ { "nfs-share", required_argument, 0, 'n' },
+ { "mountpoint", required_argument, 0, 'm' },
+ { NULL, 0, 0, 0 }
+ };
+ int c;
+ int opt_idx = 0;
+ char *url = NULL;
+ char *mnt = NULL;
+ char *server = NULL, *export = NULL, *strp;
+ int fuse_nfs_argc = 6;
+ char *fuse_nfs_argv[16] = {
+ "fuse-nfs",
+ "<export>",
+ "-odebug",
+ "-oallow_other",
+ "-odefault_permissions",
+ "-omax_write=32768",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ };
+
+ while ((c = getopt_long(argc, argv, "?hm:n:", long_opts,
+ &opt_idx)) > 0) {
+ switch (c) {
+ case 'h':
+ case '?':
+ print_usage(argv[0]);
+ return 0;
+ case 'm':
+ mnt = strdup(optarg);
+ break;
+ case 'n':
+ url = strdup(optarg);
+ break;
+ }
+ }
+
+ if (url == NULL) {
+ fprintf(stderr, "-n was not specified.\n");
+ ret = 10;
+ goto finished;
+ }
+ if (mnt == NULL) {
+ fprintf(stderr, "-m was not specified.\n");
+ ret = 10;
+ goto finished;
+ }
+
+
+ if (strncmp(url, "nfs://", 6)) {
+ fprintf(stderr, "Invalid URL specified.\n");
+ ret = 10;
+ goto finished;
+ }
+ server = strdup(url + 6);
+ if (server == NULL) {
+ fprintf(stderr, "Failed to strdup server string\n");
+ ret = 10;
+ goto finished;
+ }
+ if (server[0] == '/' || server[0] == '\0') {
+ fprintf(stderr, "Invalid server string.\n");
+ ret = 10;
+ goto finished;
+ }
+ strp = strchr(server, '/');
+ if (strp == NULL) {
+ fprintf(stderr, "Invalid URL specified.\n");
+ ret = 10;
+ goto finished;
+ }
+ export = strdup(strp);
+ if (export == NULL) {
+ fprintf(stderr, "Failed to strdup server string\n");
+ ret = 10;
+ goto finished;
+ }
+ if (export[0] != '/') {
+ fprintf(stderr, "Invalid export.\n");
+ ret = 10;
+ goto finished;
+ }
+ *strp = 0;
+
+ nfs = nfs_init_context();
+ if (nfs == NULL) {
+ printf("failed to init context\n");
+ goto finished;
+ }
+
+ ret = nfs_mount(nfs, server, export);
+ if (ret != 0) {
+ printf("Failed to mount nfs share : %s\n", nfs_get_error(nfs));
+ goto finished;
+ }
+
+
+ fuse_nfs_argv[1] = mnt;
+ return fuse_main(fuse_nfs_argc, fuse_nfs_argv, &nfs_oper, NULL);
+
+finished:
+ if (nfs != NULL) {
+ nfs_destroy_context(nfs);
+ }
+ free(server);
+ free(export);
+ free(url);
+ free(mnt);
+ return ret;
+}
repositories / deb_libnfs.git / commitdiff
