static struct file_context *
open_file(const char *url, int flags)
{
struct file_context *file_context;
file_context = malloc(sizeof(struct file_context));
if (file_context == NULL) {
fprintf(stderr, "Failed to malloc file_context\n");
return NULL;
}
file_context->fd = -1;
file_context->nfs = NULL;
file_context->nfsfh = NULL;
file_context->url = NULL;
file_context->nfs = nfs_init_context();
if (file_context->nfs == NULL) {
fprintf(stderr, "failed to init context\n");
free_file_context(file_context);
return NULL;
}
file_context->url = nfs_parse_url_full(file_context->nfs, url);
if (file_context->url == NULL) {
fprintf(stderr, "%s\n", nfs_get_error(file_context->nfs));
free_file_context(file_context);
return NULL;
}
if (nfs_mount(file_context->nfs, file_context->url->server,
file_context->url->path) != 0) {
fprintf(stderr, "Failed to mount nfs share : %s\n",
nfs_get_error(file_context->nfs));
free_file_context(file_context);
return NULL;
}
if (flags == O_RDONLY) {
if (nfs_open(file_context->nfs, file_context->url->file, flags,
&file_context->nfsfh) != 0) {
fprintf(stderr, "Failed to open file %s: %s\n",
file_context->url->file,
nfs_get_error(file_context->nfs));
free_file_context(file_context);
return NULL;
}
} else {
if (nfs_creat(file_context->nfs, file_context->url->file, 0660,
&file_context->nfsfh) != 0) {
fprintf(stderr, "Failed to creat file %s: %s\n",
file_context->url->file,
nfs_get_error(file_context->nfs));
free_file_context(file_context);
return NULL;
}
}
return file_context;
}
File::File(Mount& mnt,
const fs::path& p,
yt::FDMode fdmode,
CreateIfNecessary create_if_necessary)
: ctx_(mnt.ctx_)
{
/* mode is not the same for both nfs_creat and nfs_open. For nfs_open
* mode has the same meaning as flags but for nfs_creat is the mode used
* for file creation. The newer version of libnfs makes this difference
* obvious by introducing a second field 'flags' along with mode. We should
* consider upgrading to the latest libnfs then and drop the workaround
* introduced below.
*/
const int mode = create_if_necessary == CreateIfNecessary::T ?
translate_create_mode(fdmode) : translate_mode(fdmode);
LOG_TRACE(mnt.share_name() << ", " << p << ", mode " << mode <<
", create: " << create_if_necessary);
nfsfh* fh;
int ret;
if (create_if_necessary == CreateIfNecessary::T)
{
ret = nfs_creat(ctx_.get(),
p.string().c_str(),
mode,
&fh);
}
else
{
ret = nfs_open(ctx_.get(),
p.string().c_str(),
mode,
&fh);
}
if (ret < 0)
{
const char* err = nfs_get_error(ctx_.get());
std::stringstream ss;
ss << "Failed to open " << p << ": " << err;
LOG_ERROR(ss.str());
throw Exception(ss.str().c_str());
}
else
{
fh_ = std::shared_ptr<nfsfh>(fh, FhDeleter(ctx_));
}
}
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;
return ret;
}
int main(int argc, char *argv[])
{
int ret = 1;
struct nfs_context *nfs = NULL;
struct nfsfh *nfsfh = NULL;
struct nfs_url *url = NULL;
#ifdef WIN32
if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
printf("Failed to start Winsock2\n");
exit(10);
}
#endif
#ifdef AROS
aros_init_socket();
#endif
if (argc < 3) {
fprintf(stderr, "No URL specified.\n");
goto finished;
}
nfs = nfs_init_context();
if (nfs == NULL) {
printf("failed to init context\n");
goto finished;
}
url = nfs_parse_url_full(nfs, argv[argc - 1]);
if (url == NULL) {
fprintf(stderr, "%s\n", nfs_get_error(nfs));
goto finished;
}
if (nfs_mount(nfs, url->server, url->path) != 0) {
fprintf(stderr, "Failed to mount nfs share : %s\n", nfs_get_error(nfs));
goto finished;
}
if (!strncmp(argv[1], "creat", 5)) {
ret = nfs_creat(nfs, url->file, 0600, &nfsfh);
} else if (!strncmp(argv[1], "unlink", 6)) {
ret = nfs_unlink(nfs, url->file);
} else if (!strncmp(argv[1], "mkdir", 5)) {
ret = nfs_mkdir(nfs, url->file);
} else if (!strncmp(argv[1], "rmdir", 5)) {
ret = nfs_rmdir(nfs, url->file);
} else if (!strncmp(argv[1], "stat", 4)) {
struct nfs_stat_64 st;
ret = nfs_stat64(nfs, url->file, &st);
if (!ret) {
switch (st.nfs_mode & S_IFMT) {
#ifndef WIN32
case S_IFLNK:
printf("l");
break;
#endif
case S_IFREG:
printf("-");
break;
case S_IFDIR:
printf("d");
break;
case S_IFCHR:
printf("c");
break;
case S_IFBLK:
printf("b");
break;
}
printf("%c%c%c",
"-r"[!!(st.nfs_mode & S_IRUSR)],
"-w"[!!(st.nfs_mode & S_IWUSR)],
"-x"[!!(st.nfs_mode & S_IXUSR)]
);
printf("%c%c%c",
"-r"[!!(st.nfs_mode & S_IRGRP)],
"-w"[!!(st.nfs_mode & S_IWGRP)],
"-x"[!!(st.nfs_mode & S_IXGRP)]
);
printf("%c%c%c",
"-r"[!!(st.nfs_mode & S_IROTH)],
"-w"[!!(st.nfs_mode & S_IWOTH)],
"-x"[!!(st.nfs_mode & S_IXOTH)]
);
printf(" %2d", (int)st.nfs_nlink);
printf(" %5d", (int)st.nfs_uid);
printf(" %5d", (int)st.nfs_gid);
printf(" %12" PRId64, st.nfs_size);
printf("\n");
}
} else {
goto finished;
}
if (ret) {
fprintf(stderr, "ERROR: %s\n", nfs_get_error(nfs));
}
finished:
if (ret > 0) {
print_usage();
}
nfs_destroy_url(url);
if (nfs != NULL) {
if (nfsfh) {
nfs_close(nfs, nfsfh);
}
nfs_destroy_context(nfs);
}
return !!ret;
}
static void workspace_nfs_create(fuse_req_t req, struct inode_struct *pinode, struct name_struct *xname, struct workspace_fh_struct *fh, mode_t mode)
{
struct resource_struct *resource=fh->object->resource;
struct net_nfs_export_struct *nfs_export=(struct net_nfs_export_struct *) resource->data;
struct nfs_context *nfs_ctx=(struct nfs_context *) nfs_export->data;
char *path=fh->pathinfo.path + fh->relpath;
struct entry_struct *entry=NULL, *parent=pinode->alias;
struct inode_struct *inode;
struct nfsfh *nfsfh=NULL;
logoutput("workspace_nfs_create, path %s", path);
entry=create_entry(parent, xname);
inode=create_inode();
if (entry && inode) {
int result=0;
inode->alias=entry;
entry->inode=inode;
pthread_mutex_lock(&nfs_export->mutex);
result=nfs_creat(nfs_ctx, path, mode, &nfsfh);
pthread_mutex_unlock(&nfs_export->mutex);
if (result==0) {
struct fuse_entry_param e;
unsigned int error=0;
struct stat st;
memset(&st, 0, sizeof(struct stat));
add_inode_hashtable(inode, increase_inodes_workspace, (void *) fh->object->workspace_mount);
insert_entry(entry, &error, 0);
adjust_pathmax(fh->pathinfo.len);
nfs_fstat(nfs_ctx, nfsfh, &st);
inode->nlookup=1;
inode->mode=st.st_mode;
inode->nlink=st.st_nlink;
inode->uid=st.st_uid;
inode->gid=st.st_gid;
inode->rdev=st.st_rdev;
inode->size=st.st_size;
inode->mtim.tv_sec=st.st_mtim.tv_sec;
inode->mtim.tv_nsec=st.st_mtim.tv_nsec;
inode->ctim.tv_sec=st.st_ctim.tv_sec;
inode->ctim.tv_nsec=st.st_ctim.tv_nsec;
e.ino = inode->ino;
e.generation = 1;
e.attr_timeout = fs_options.attr_timeout;
e.entry_timeout = fs_options.entry_timeout;
e.attr.st_ino = e.ino;
e.attr.st_mode = st.st_mode;
e.attr.st_nlink = st.st_nlink;
e.attr.st_uid = st.st_uid;
e.attr.st_gid = st.st_gid;
e.attr.st_rdev = st.st_rdev;
e.attr.st_atim.tv_sec = st.st_atim.tv_sec;
e.attr.st_atim.tv_nsec = st.st_atim.tv_nsec;
e.attr.st_mtim.tv_sec = st.st_mtim.tv_sec;
e.attr.st_mtim.tv_nsec = st.st_mtim.tv_nsec;
e.attr.st_ctim.tv_sec = st.st_ctim.tv_sec;
e.attr.st_ctim.tv_nsec = st.st_ctim.tv_nsec;
e.attr.st_blksize=_DEFAULT_BLOCKSIZE;
if (inode->size % e.attr.st_blksize == 0) {
e.attr.st_blocks=inode->size / e.attr.st_blksize;
} else {
e.attr.st_blocks=1 + inode->size / e.attr.st_blksize;
}
fh->handle.data=(void *) nfsfh;
fuse_reply_create(req, &e, fh->fi);
} else {
/* error nfs create */
destroy_entry(entry);
free(inode);
fuse_reply_err(req, abs(result));
}
} else {
/* not enough memory to allocate entry and/or inode */
if (entry) {
destroy_entry(entry);
entry=NULL;
}
if (inode) {
free(inode);
inode=NULL;
}
fuse_reply_err(req, ENOMEM);
}
free_path_pathinfo(&fh->pathinfo);
}
int open(const char *path, int flags, mode_t mode)
{
if (!strncmp(path, "nfs:", 4)) {
struct nfs_context *nfs;
struct nfs_url *url;
struct nfsfh *fh = NULL;
int ret, fd;
LD_NFS_DPRINTF(9, "open(%s, %x, %o)", path, flags, mode);
nfs = nfs_init_context();
if (nfs == NULL) {
LD_NFS_DPRINTF(1, "Failed to create context");
errno = ENOMEM;
return -1;
}
url = nfs_parse_url_full(nfs, path);
if (url == NULL) {
LD_NFS_DPRINTF(1, "Failed to parse URL: %s\n",
nfs_get_error(nfs));
nfs_destroy_context(nfs);
errno = EINVAL;
return -1;
}
if (nfs_mount(nfs, url->server, url->path) != 0) {
LD_NFS_DPRINTF(1, "Failed to mount nfs share : %s\n",
nfs_get_error(nfs));
nfs_destroy_url(url);
nfs_destroy_context(nfs);
errno = EINVAL;
return -1;
}
if (flags & O_CREAT) {
if ((ret = nfs_creat(nfs, url->file, mode, &fh)) != 0) {
LD_NFS_DPRINTF(1, "Failed to creat nfs file : "
"%s\n", nfs_get_error(nfs));
nfs_destroy_url(url);
nfs_destroy_context(nfs);
errno = -ret;
return -1;
}
} else {
if ((ret = nfs_open(nfs, url->file, flags, &fh)) != 0) {
LD_NFS_DPRINTF(1, "Failed to open nfs file : "
"%s\n", nfs_get_error(nfs));
nfs_destroy_url(url);
nfs_destroy_context(nfs);
errno = -ret;
return -1;
}
}
fd = nfs_get_fd(nfs);
if (fd >= NFS_MAX_FD) {
LD_NFS_DPRINTF(1, "Too many files open");
nfs_destroy_url(url);
nfs_destroy_context(nfs);
errno = ENFILE;
return -1;
}
nfs_fd_list[fd].is_nfs = 1;
nfs_fd_list[fd].nfs = nfs;
nfs_fd_list[fd].fh = fh;
nfs_fd_list[fd].path = strdup(path);
nfs_fd_list[fd].flags = flags;
nfs_fd_list[fd].mode = mode;
nfs_destroy_url(url);
LD_NFS_DPRINTF(9, "open(%s) == %d", path, fd);
return fd;
}
return real_open(path, flags, mode);
}
static struct file_context *
open_file(const char *url, int flags)
{
struct file_context *file_context;
char *server = NULL, *path = NULL, *file = NULL, *strp;
file_context = malloc(sizeof(struct file_context));
if (file_context == NULL) {
fprintf(stderr, "Failed to malloc file_context\n");
return NULL;
}
file_context->is_nfs = 0;
file_context->fd = -1;
file_context->nfs = NULL;
file_context->nfsfh = NULL;
if (strncmp(url, "nfs://", 6)) {
file_context->is_nfs = 0;
file_context->fd = open(url, flags, 0660);
if (file_context->fd == -1) {
fprintf(stderr, "Failed to open %s\n", url);
free_file_context(file_context);
return NULL;
}
return file_context;
}
file_context->is_nfs = 1;
file_context->nfs = nfs_init_context();
if (file_context->nfs == NULL) {
fprintf(stderr, "failed to init context\n");
free_file_context(file_context);
return NULL;
}
server = strdup(url + 6);
if (server == NULL) {
fprintf(stderr, "Failed to strdup server string\n");
free_file_context(file_context);
return NULL;
}
if (server[0] == '/' || server[0] == '\0') {
fprintf(stderr, "Invalid server string.\n");
free(server);
free_file_context(file_context);
return NULL;
}
strp = strchr(server, '/');
path = strdup(strp);
*strp = 0;
if (path == NULL) {
fprintf(stderr, "Invalid URL specified.\n");
free(server);
free_file_context(file_context);
return NULL;
}
strp = strrchr(path, '/');
if (strp == NULL) {
fprintf(stderr, "Invalid URL specified.\n");
free(path);
free(server);
free_file_context(file_context);
return NULL;
}
file = strdup(strp);
*strp = 0;
if (nfs_mount(file_context->nfs, server, path) != 0) {
fprintf(stderr, "Failed to mount nfs share : %s\n",
nfs_get_error(file_context->nfs));
free(file);
free(path);
free(server);
free_file_context(file_context);
return NULL;
}
if (flags == O_RDONLY) {
if (nfs_open(file_context->nfs, file, flags,
&file_context->nfsfh) != 0) {
fprintf(stderr, "Failed to open file : %s\n",
nfs_get_error(file_context->nfs));
free(file);
free(path);
free(server);
free_file_context(file_context);
return NULL;
}
} else {
if (nfs_creat(file_context->nfs, file, 0660,
&file_context->nfsfh) != 0) {
fprintf(stderr, "Failed to creat file %s %s\n", file,
nfs_get_error(file_context->nfs));
free(file);
free(path);
free(server);
free_file_context(file_context);
return NULL;
}
}
free(file);
free(path);
free(server);
return file_context;
}
