1085 lines
22 KiB
C
1085 lines
22 KiB
C
/*
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* File : dfs_nfs.c
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* This file is part of Device File System in RT-Thread RTOS
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* COPYRIGHT (C) 2004-2011, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE.
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*
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* Change Logs:
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* Date Author Notes
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*/
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#include <stdio.h>
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#include <rtthread.h>
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#include <dfs_fs.h>
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#include <dfs_def.h>
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#include <rpc/rpc.h>
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#include "mount.h"
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#include "nfs.h"
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#define NAME_MAX 64
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struct nfs_file
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{
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nfs_fh3 handle; /* handle */
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size_t offset; /* current offset */
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size_t size; /* total size */
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bool_t eof; /* end of file */
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};
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struct nfs_dir
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{
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nfs_fh3 handle;
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cookie3 cookie;
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cookieverf3 cookieverf;
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entry3 *entry;
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bool_t eof;
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READDIR3res res;
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};
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#define HOST_LENGTH 32
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#define EXPORT_PATH_LENGTH 32
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struct nfs_filesystem
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{
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nfs_fh3 root_handle;
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nfs_fh3 current_handle;
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CLIENT *nfs_client;
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CLIENT *mount_client;
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char host[HOST_LENGTH];
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char export[EXPORT_PATH_LENGTH];
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};
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typedef struct nfs_file nfs_file;
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typedef struct nfs_dir nfs_dir;
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nfs_dir *nfs_opendir(struct nfs_filesystem *nfs, const char *path);
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static int nfs_parse_host_export(const char *host_export,
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char *host, size_t host_len,
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char *export, size_t export_len)
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{
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int index;
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for (index = 0; index < host_len; index ++)
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{
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/* it's end of string, failed */
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if (host_export[index] == 0)
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return -1;
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/* copy to host buffer */
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if (host_export[index] != ':')
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host[index] = host_export[index];
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else
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break;
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}
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/* host buffer is not enough, failed */
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if (index == host_len)
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return -1;
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/* make RT_NULL */
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host_len = index;
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host[host_len] = '\0';
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host_len ++;
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/* copy export path */
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for (index = host_len; index < host_len + export_len; index ++)
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{
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if (host_export[index] == 0)
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{
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export[index - host_len] = '\0';
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return 0;
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}
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export[index - host_len] = host_export[index];
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}
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return -1;
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}
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static void copy_handle(nfs_fh3 *dest, const nfs_fh3 *source)
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{
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dest->data.data_len = source->data.data_len;
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dest->data.data_val = rt_malloc(dest->data.data_len);
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if (dest->data.data_val == RT_NULL)
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{
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dest->data.data_len = 0;
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return;
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}
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memcpy(dest->data.data_val, source->data.data_val, dest->data.data_len);
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}
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static nfs_fh3 *get_handle(struct nfs_filesystem *nfs, const char *name)
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{
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nfs_fh3 *handle = RT_NULL;
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char *file;
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char *path;
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char *init;
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init = path = rt_malloc(strlen(name)+1);
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if (init == RT_NULL)
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return RT_NULL;
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memcpy(init, name, strlen(name)+1);
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handle = rt_malloc(sizeof(nfs_fh3));
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if (handle == RT_NULL)
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{
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rt_free(init);
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return RT_NULL;
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}
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if (path[0] == '/')
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{
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path ++;
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copy_handle(handle, &nfs->root_handle);
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}
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else
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{
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copy_handle(handle, &nfs->current_handle);
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}
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while ((file = strtok_r(RT_NULL, "/", &path)) != RT_NULL)
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{
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LOOKUP3args args;
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LOOKUP3res res;
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memset(&res, 0, sizeof(res));
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copy_handle(&args.what.dir, handle);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
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args.what.name = file;
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if (nfsproc3_lookup_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
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{
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rt_kprintf("Lookup failed\n");
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rt_free(init);
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rt_free(handle);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&args.what.dir);
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return RT_NULL;
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}
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else if (res.status != NFS3_OK)
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{
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rt_kprintf("Lookup failed: %d\n", res.status);
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rt_free(init);
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rt_free(handle);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&args.what.dir);
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xdr_free((xdrproc_t)xdr_LOOKUP3res, (char *)&res);
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return RT_NULL;
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}
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copy_handle(handle, &res.LOOKUP3res_u.resok.object);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&args.what.dir);
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xdr_free((xdrproc_t)xdr_LOOKUP3res, (char *)&res);
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}
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rt_free(init);
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return handle;
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}
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static nfs_fh3 *get_dir_handle(struct nfs_filesystem *nfs, const char *name)
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{
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nfs_fh3 *handle = RT_NULL;
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char *file;
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char *path;
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char *init;
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init = path = rt_malloc(strlen(name)+1);
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if (init == RT_NULL)
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return RT_NULL;
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memcpy(init, name, strlen(name)+1);
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handle = rt_malloc(sizeof(nfs_fh3));
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if (handle == RT_NULL)
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{
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rt_free(init);
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return RT_NULL;
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}
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if (path[0] == '/')
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{
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path ++;
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copy_handle(handle, &nfs->root_handle);
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}
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else
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{
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copy_handle(handle, &nfs->current_handle);
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}
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while ((file = strtok_r(RT_NULL, "/", &path)) != RT_NULL && path[0] != '\0')
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{
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LOOKUP3args args;
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LOOKUP3res res;
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memset(&res, 0, sizeof(res));
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copy_handle(&args.what.dir, handle);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
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args.what.name = file;
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if (nfsproc3_lookup_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
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{
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rt_kprintf("Lookup failed\n");
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rt_free(init);
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rt_free(handle);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&args.what.dir);
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return RT_NULL;
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}
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else if (res.status != NFS3_OK)
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{
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rt_kprintf("Lookup failed: %d\n", res.status);
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rt_free(init);
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rt_free(handle);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&args.what.dir);
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xdr_free((xdrproc_t)xdr_LOOKUP3res, (char *)&res);
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return RT_NULL;
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}
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copy_handle(handle, &res.LOOKUP3res_u.resok.object);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&args.what.dir);
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xdr_free((xdrproc_t)xdr_LOOKUP3res, (char *)&res);
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}
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rt_free(init);
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return handle;
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}
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static size_t nfs_get_filesize(struct nfs_filesystem *nfs, nfs_fh3 *handle)
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{
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GETATTR3args args;
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GETATTR3res res;
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fattr3 *info;
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size_t size;
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args.object = *handle;
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memset(&res, '\0', sizeof(res));
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if ((nfsproc3_getattr_3(args, &res, nfs->nfs_client)!=RPC_SUCCESS) ||
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res.status != NFS3_OK)
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{
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rt_kprintf("GetAttr failed: %d\n", res.status);
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return 0;
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}
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info = &res.GETATTR3res_u.resok.obj_attributes;
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size = info->size;
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xdr_free((xdrproc_t)xdr_GETATTR3res, (char *)&res);
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return size;
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}
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rt_bool_t nfs_is_directory(struct nfs_filesystem *nfs, const char *name)
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{
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GETATTR3args args;
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GETATTR3res res;
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fattr3 *info;
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nfs_fh3 *handle;
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rt_bool_t result;
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result = RT_FALSE;
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handle = get_handle(nfs, name);
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if (handle == RT_NULL)
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return RT_FALSE;
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args.object = *handle;
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memset(&res, '\0', sizeof(res));
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if (nfsproc3_getattr_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
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{
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rt_kprintf("GetAttr failed\n");
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return RT_FALSE;
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}
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else if (res.status != NFS3_OK)
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{
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rt_kprintf("Getattr failed: %d\n", res.status);
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return RT_FALSE;
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}
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info=&res.GETATTR3res_u.resok.obj_attributes;
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if (info->type == NFS3DIR)
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result = RT_TRUE;
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xdr_free((xdrproc_t)xdr_GETATTR3res, (char *)&res);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
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rt_free(handle);
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return result;
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}
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int nfs_create(struct nfs_filesystem *nfs, const char *name, mode_t mode)
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{
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CREATE3args args;
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CREATE3res res;
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int ret = 0;
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nfs_fh3 *handle;
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if (nfs->nfs_client == RT_NULL)
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{
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return -1;
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}
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handle = get_dir_handle(nfs, name);
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if (handle == RT_NULL)
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{
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return -1;
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}
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args.where.dir = *handle;
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args.where.name = strrchr(name, '/') + 1;
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if (args.where.name == RT_NULL)
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{
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args.where.name = (char *)name;
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}
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args.how.mode = GUARDED;
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args.how.createhow3_u.obj_attributes.mode.set_it = TRUE;
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args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = mode;
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args.how.createhow3_u.obj_attributes.uid.set_it = FALSE;
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args.how.createhow3_u.obj_attributes.gid.set_it = FALSE;
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args.how.createhow3_u.obj_attributes.size.set_it = FALSE;
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args.how.createhow3_u.obj_attributes.atime.set_it = DONT_CHANGE;
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args.how.createhow3_u.obj_attributes.mtime.set_it = DONT_CHANGE;
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memset(&res, 0, sizeof(res));
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if (nfsproc3_create_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
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{
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rt_kprintf("Create failed\n");
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ret = -1;
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}
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else if (res.status != NFS3_OK)
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{
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rt_kprintf("Create failed: %d\n", res.status);
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ret = -1;
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}
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xdr_free((xdrproc_t)xdr_CREATE3res, (char *)&res);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
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rt_free(handle);
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return ret;
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}
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int nfs_mkdir(struct nfs_filesystem *nfs, const char *name, mode_t mode)
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{
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MKDIR3args args;
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MKDIR3res res;
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int ret = 0;
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nfs_fh3 *handle;
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if (nfs->nfs_client == RT_NULL)
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return -1;
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handle = get_dir_handle(nfs, name);
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if (handle == RT_NULL)
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return -1;
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args.where.dir = *handle;
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args.where.name = strrchr(name, '/') + 1;
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if (args.where.name == RT_NULL)
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{
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args.where.name = (char *)name;
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}
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args.attributes.mode.set_it = TRUE;
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args.attributes.mode.set_mode3_u.mode = mode;
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args.attributes.uid.set_it = FALSE;
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args.attributes.gid.set_it = FALSE;
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args.attributes.size.set_it = FALSE;
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args.attributes.atime.set_it = DONT_CHANGE;
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args.attributes.mtime.set_it = DONT_CHANGE;
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memset(&res, 0, sizeof(res));
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if (nfsproc3_mkdir_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
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{
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rt_kprintf("Mkdir failed\n");
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ret = -1;
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}
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else if (res.status != NFS3_OK)
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{
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rt_kprintf("Mkdir failed: %d\n", res.status);
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ret = -1;
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}
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xdr_free((xdrproc_t)xdr_MKDIR3res, (char *)&res);
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xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
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rt_free(handle);
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return ret;
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}
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/* mount(RT_NULL, "/mnt", "nfs", 0, "192.168.1.1:/export") */
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int nfs_mount(struct dfs_filesystem *fs, unsigned long rwflag, const void *data)
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{
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mountres3 res;
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struct nfs_filesystem *nfs;
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nfs = (struct nfs_filesystem *)rt_malloc(sizeof(struct nfs_filesystem));
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memset(nfs, 0, sizeof(struct nfs_filesystem));
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if (nfs_parse_host_export((const char *)data, nfs->host, HOST_LENGTH,
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nfs->export, EXPORT_PATH_LENGTH) < 0)
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{
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rt_kprintf("host or export path error\n");
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goto __return;
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}
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nfs->mount_client=clnt_create((char *)nfs->host, MOUNT_PROGRAM, MOUNT_V3, "udp");
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if (nfs->mount_client == RT_NULL)
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{
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rt_kprintf("create mount client failed\n");
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goto __return;
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}
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memset(&res, '\0', sizeof(mountres3));
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if (mountproc3_mnt_3((char *)nfs->export, &res, nfs->mount_client) != RPC_SUCCESS)
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{
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rt_kprintf("nfs mount failed\n");
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goto __return;
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}
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else if (res.fhs_status != MNT3_OK)
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{
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rt_kprintf("nfs mount failed\n");
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goto __return;
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}
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nfs->nfs_client=clnt_create((char *)nfs->host, NFS_PROGRAM, NFS_V3, "udp");
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if (nfs->nfs_client == RT_NULL)
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{
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rt_kprintf("creat nfs client failed\n");
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goto __return;
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}
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copy_handle(&nfs->root_handle, (nfs_fh3 *)&res.mountres3_u.mountinfo.fhandle);
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copy_handle(&nfs->current_handle, &nfs->root_handle);
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nfs->nfs_client->cl_auth = authnone_create();
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fs->data = nfs;
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return 0;
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__return:
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if (nfs != RT_NULL)
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{
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if (nfs->mount_client != RT_NULL)
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{
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clnt_destroy(nfs->mount_client);
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}
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if (nfs->nfs_client != RT_NULL)
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{
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if (nfs->nfs_client->cl_auth != RT_NULL)
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{
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auth_destroy(nfs->nfs_client->cl_auth);
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}
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clnt_destroy(nfs->nfs_client);
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}
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rt_free(nfs);
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}
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return -1;
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}
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int nfs_unmount(struct dfs_filesystem *fs)
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{
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struct nfs_filesystem *nfs;
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RT_ASSERT(fs != RT_NULL);
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RT_ASSERT(fs->data != RT_NULL);
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nfs = (struct nfs_filesystem *)fs->data;
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if (nfs->mount_client != RT_NULL &&
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mountproc3_umnt_3((char *)nfs->export, RT_NULL, nfs->mount_client) != RPC_SUCCESS)
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{
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rt_kprintf("umount failed\n");
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return -1;
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}
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/* destroy nfs client */
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if (nfs->nfs_client != RT_NULL)
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{
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if (nfs->nfs_client->cl_auth != RT_NULL)
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{
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auth_destroy(nfs->nfs_client->cl_auth);
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nfs->nfs_client->cl_auth = RT_NULL;
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}
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clnt_destroy(nfs->nfs_client);
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nfs->nfs_client = RT_NULL;
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}
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/* destroy mount client */
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if (nfs->mount_client != RT_NULL)
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{
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if (nfs->mount_client->cl_auth != RT_NULL)
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{
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auth_destroy(nfs->mount_client->cl_auth);
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nfs->mount_client->cl_auth = RT_NULL;
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}
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clnt_destroy(nfs->mount_client);
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nfs->mount_client = RT_NULL;
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}
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|
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rt_free(nfs);
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fs->data = RT_NULL;
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return 0;
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}
|
|
|
|
int nfs_ioctl(struct dfs_fd *file, int cmd, void *args)
|
|
{
|
|
return -DFS_STATUS_ENOSYS;
|
|
}
|
|
|
|
int nfs_read(struct dfs_fd *file, void *buf, rt_size_t count)
|
|
{
|
|
READ3args args;
|
|
READ3res res;
|
|
ssize_t bytes;
|
|
nfs_file *fd;
|
|
struct nfs_filesystem *nfs;
|
|
|
|
if (file->type == FT_DIRECTORY)
|
|
return -DFS_STATUS_EISDIR;
|
|
|
|
fd = (nfs_file *)(file->data);
|
|
RT_ASSERT(fd != RT_NULL);
|
|
RT_ASSERT(file->fs != RT_NULL);
|
|
RT_ASSERT(file->fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)file->fs->data;
|
|
|
|
if (nfs->nfs_client == RT_NULL)
|
|
return -1;
|
|
|
|
/* end of file */
|
|
if (fd->eof == TRUE)
|
|
return 0;
|
|
|
|
args.file = fd->handle;
|
|
args.offset = fd->offset;
|
|
args.count = count;
|
|
|
|
memset(&res, 0, sizeof(res));
|
|
if (nfsproc3_read_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("Read failed\n");
|
|
bytes = 0;
|
|
}
|
|
else if (res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Read failed: %d\n", res.status);
|
|
bytes = 0;
|
|
}
|
|
else
|
|
{
|
|
if (res.READ3res_u.resok.eof)
|
|
{
|
|
/* something should probably be here */
|
|
fd->eof = TRUE;
|
|
}
|
|
bytes = res.READ3res_u.resok.count;
|
|
fd->offset += bytes;
|
|
/* update current position */
|
|
file->pos = fd->offset;
|
|
memcpy(buf, res.READ3res_u.resok.data.data_val, bytes);
|
|
}
|
|
xdr_free((xdrproc_t)xdr_READ3res, (char *)&res);
|
|
|
|
return bytes;
|
|
}
|
|
|
|
int nfs_write(struct dfs_fd *file, const void *buf, rt_size_t count)
|
|
{
|
|
WRITE3args args;
|
|
WRITE3res res;
|
|
ssize_t bytes;
|
|
nfs_file *fd;
|
|
struct nfs_filesystem *nfs;
|
|
|
|
if (file->type == FT_DIRECTORY)
|
|
return -DFS_STATUS_EISDIR;
|
|
|
|
fd = (nfs_file *)(file->data);
|
|
RT_ASSERT(fd != RT_NULL);
|
|
RT_ASSERT(file->fs != RT_NULL);
|
|
RT_ASSERT(file->fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)file->fs->data;
|
|
|
|
if (nfs->nfs_client == RT_NULL)
|
|
return -1;
|
|
|
|
args.file = fd->handle;
|
|
args.stable = FILE_SYNC;
|
|
args.offset = fd->offset;
|
|
|
|
memset(&res, 0, sizeof(res));
|
|
args.data.data_val=(void *)buf;
|
|
args.count=args.data.data_len = count;
|
|
|
|
if (nfsproc3_write_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("Write failed\n");
|
|
bytes = 0;
|
|
}
|
|
else if (res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Write failed: %d\n", res.status);
|
|
bytes = 0;
|
|
}
|
|
else
|
|
{
|
|
bytes = res.WRITE3res_u.resok.count;
|
|
fd->offset += bytes;
|
|
/* update current position */
|
|
file->pos = fd->offset;
|
|
/* todo: update file size */
|
|
}
|
|
xdr_free((xdrproc_t)xdr_WRITE3res, (char *)&res);
|
|
|
|
return bytes;
|
|
}
|
|
|
|
int nfs_lseek(struct dfs_fd *file, rt_off_t offset)
|
|
{
|
|
nfs_file *fd;
|
|
|
|
if (file->type == FT_DIRECTORY)
|
|
return -DFS_STATUS_EISDIR;
|
|
|
|
fd = (nfs_file *)(file->data);
|
|
RT_ASSERT(fd != RT_NULL);
|
|
|
|
if (offset < fd->size)
|
|
{
|
|
fd->offset = offset;
|
|
return offset;
|
|
}
|
|
|
|
return -DFS_STATUS_EIO;
|
|
}
|
|
|
|
int nfs_close(struct dfs_fd *file)
|
|
{
|
|
if (file->type == FT_DIRECTORY)
|
|
{
|
|
struct nfs_dir *dir;
|
|
|
|
dir = (struct nfs_dir *)file->data;
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&dir->handle);
|
|
xdr_free((xdrproc_t)xdr_READDIR3res, (char *)&dir->res);
|
|
rt_free(dir);
|
|
}
|
|
else if (file->type == FT_REGULAR)
|
|
{
|
|
struct nfs_file *fd;
|
|
|
|
fd = (struct nfs_file *)file->data;
|
|
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)&fd->handle);
|
|
rt_free(fd);
|
|
}
|
|
|
|
file->data = RT_NULL;
|
|
return 0;
|
|
}
|
|
|
|
int nfs_open(struct dfs_fd *file)
|
|
{
|
|
struct nfs_filesystem *nfs;
|
|
|
|
RT_ASSERT(file->fs != RT_NULL);
|
|
RT_ASSERT(file->fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)file->fs->data;
|
|
|
|
if (file->flags & DFS_O_DIRECTORY)
|
|
{
|
|
nfs_dir *dir;
|
|
|
|
if (file->flags & DFS_O_CREAT)
|
|
{
|
|
if (nfs_mkdir(nfs, file->path, 555) < 0)
|
|
return -1;
|
|
}
|
|
|
|
/* open directory */
|
|
dir = nfs_opendir(nfs, file->path);
|
|
file->data = dir;
|
|
}
|
|
else
|
|
{
|
|
nfs_file *fp;
|
|
nfs_fh3 *handle;
|
|
|
|
/* create file */
|
|
if (file->flags & DFS_O_CREAT)
|
|
{
|
|
if (nfs_create(nfs, file->path, 555) < 0) return -1;
|
|
}
|
|
|
|
/* open file (get file handle ) */
|
|
fp = rt_malloc(sizeof(nfs_file));
|
|
if (fp == RT_NULL)
|
|
return -1;
|
|
|
|
handle = get_handle(nfs, file->path);
|
|
if (handle == RT_NULL)
|
|
{
|
|
rt_free(fp);
|
|
return -1;
|
|
}
|
|
|
|
/* get size of file */
|
|
fp->size = nfs_get_filesize(nfs, handle);
|
|
fp->offset = 0;
|
|
fp->eof = FALSE;
|
|
|
|
copy_handle(&fp->handle, handle);
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
|
|
rt_free(handle);
|
|
|
|
if (file->flags & DFS_O_APPEND)
|
|
{
|
|
fp->offset = fp->size;
|
|
}
|
|
|
|
/* set private file */
|
|
file->data = fp;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int nfs_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)
|
|
{
|
|
GETATTR3args args;
|
|
GETATTR3res res;
|
|
fattr3 *info;
|
|
nfs_fh3 *handle;
|
|
struct nfs_filesystem *nfs;
|
|
|
|
RT_ASSERT(fs != RT_NULL);
|
|
RT_ASSERT(fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)fs->data;
|
|
|
|
handle = get_handle(nfs, path);
|
|
if (handle == RT_NULL)
|
|
return -1;
|
|
|
|
args.object = *handle;
|
|
|
|
memset(&res, '\0', sizeof(res));
|
|
|
|
if (nfsproc3_getattr_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("GetAttr failed\n");
|
|
return -1;
|
|
}
|
|
else if (res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Getattr failed: %d\n", res.status);
|
|
return -1;
|
|
}
|
|
|
|
info = &res.GETATTR3res_u.resok.obj_attributes;
|
|
|
|
st->st_dev = 0;
|
|
|
|
st->st_mode = DFS_S_IFREG | DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
|
|
DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;
|
|
if (info->type == NFS3DIR)
|
|
{
|
|
st->st_mode &= ~DFS_S_IFREG;
|
|
st->st_mode |= DFS_S_IFDIR | DFS_S_IXUSR | DFS_S_IXGRP | DFS_S_IXOTH;
|
|
}
|
|
|
|
st->st_size = info->size;
|
|
st->st_mtime = info->mtime.seconds;
|
|
st->st_blksize = 512;
|
|
|
|
xdr_free((xdrproc_t)xdr_GETATTR3res, (char *)&res);
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
|
|
rt_free(handle);
|
|
|
|
return 0;
|
|
}
|
|
|
|
nfs_dir *nfs_opendir(struct nfs_filesystem *nfs, const char *path)
|
|
{
|
|
nfs_dir *dir;
|
|
nfs_fh3 *handle;
|
|
|
|
dir = rt_malloc(sizeof(nfs_dir));
|
|
if (dir == RT_NULL)
|
|
{
|
|
return RT_NULL;
|
|
}
|
|
|
|
handle = get_handle(nfs, path);
|
|
if (handle == RT_NULL)
|
|
{
|
|
rt_free(dir);
|
|
return RT_NULL;
|
|
}
|
|
|
|
copy_handle(&dir->handle, handle);
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
|
|
rt_free(handle);
|
|
|
|
dir->cookie = 0;
|
|
memset(&dir->cookieverf, '\0', sizeof(cookieverf3));
|
|
dir->entry = RT_NULL;
|
|
dir->eof = FALSE;
|
|
memset(&dir->res, '\0', sizeof(dir->res));
|
|
|
|
return dir;
|
|
}
|
|
|
|
char *nfs_readdir(struct nfs_filesystem *nfs, nfs_dir *dir)
|
|
{
|
|
static char name[NAME_MAX];
|
|
|
|
if (nfs->nfs_client == RT_NULL || dir == RT_NULL)
|
|
return RT_NULL;
|
|
|
|
if (dir->entry == RT_NULL)
|
|
{
|
|
READDIR3args args;
|
|
|
|
xdr_free((xdrproc_t)xdr_READDIR3res, (char *)&dir->res);
|
|
memset(&dir->res, '\0', sizeof(dir->res));
|
|
|
|
args.dir = dir->handle;
|
|
args.cookie = dir->cookie;
|
|
memcpy(&args.cookieverf, &dir->cookieverf, sizeof(cookieverf3));
|
|
args.count = 1024;
|
|
|
|
if (nfsproc3_readdir_3(args, &dir->res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("Readdir failed\n");
|
|
return RT_NULL;
|
|
}
|
|
else if (dir->res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Readdir failed: %d\n", dir->res.status);
|
|
return RT_NULL;
|
|
}
|
|
|
|
memcpy(&dir->cookieverf, &dir->res.READDIR3res_u.resok.cookieverf, sizeof(cookieverf3));
|
|
dir->eof = dir->res.READDIR3res_u.resok.reply.eof;
|
|
dir->entry = dir->res.READDIR3res_u.resok.reply.entries;
|
|
}
|
|
if (dir->eof == TRUE && dir->entry == RT_NULL)
|
|
return RT_NULL;
|
|
|
|
dir->cookie = dir->entry->cookie;
|
|
strncpy(name, dir->entry->name, NAME_MAX-1);
|
|
dir->entry = dir->entry->nextentry;
|
|
name[NAME_MAX - 1] = '\0';
|
|
return name;
|
|
}
|
|
|
|
int nfs_unlink(struct dfs_filesystem *fs, const char *path)
|
|
{
|
|
int ret = 0;
|
|
struct nfs_filesystem *nfs;
|
|
|
|
RT_ASSERT(fs != RT_NULL);
|
|
RT_ASSERT(fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)fs->data;
|
|
|
|
if (nfs_is_directory(nfs, path) == RT_FALSE)
|
|
{
|
|
/* remove file */
|
|
REMOVE3args args;
|
|
REMOVE3res res;
|
|
nfs_fh3 *handle;
|
|
|
|
handle = get_dir_handle(nfs, path);
|
|
if (handle == RT_NULL)
|
|
return -1;
|
|
|
|
args.object.dir = *handle;
|
|
args.object.name = strrchr(path, '/') + 1;
|
|
if (args.object.name == RT_NULL)
|
|
{
|
|
args.object.name = (char *)path;
|
|
}
|
|
|
|
memset(&res, 0, sizeof(res));
|
|
|
|
if (nfsproc3_remove_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("Remove failed\n");
|
|
ret = -1;
|
|
}
|
|
else if (res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Remove failed: %d\n", res.status);
|
|
ret = -1;
|
|
}
|
|
xdr_free((xdrproc_t)xdr_REMOVE3res, (char *)&res);
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
|
|
rt_free(handle);
|
|
}
|
|
else
|
|
{
|
|
/* remove directory */
|
|
RMDIR3args args;
|
|
RMDIR3res res;
|
|
nfs_fh3 *handle;
|
|
|
|
handle = get_dir_handle(nfs, path);
|
|
if (handle == RT_NULL)
|
|
return -1;
|
|
|
|
args.object.dir = *handle;
|
|
args.object.name = strrchr(path, '/') + 1;
|
|
if (args.object.name == RT_NULL)
|
|
{
|
|
args.object.name = (char *)path;
|
|
}
|
|
|
|
memset(&res, 0, sizeof(res));
|
|
|
|
if (nfsproc3_rmdir_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("Rmdir failed\n");
|
|
ret = -1;
|
|
}
|
|
else if (res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Rmdir failed: %d\n", res.status);
|
|
ret = -1;
|
|
}
|
|
|
|
xdr_free((xdrproc_t)xdr_RMDIR3res, (char *)&res);
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)handle);
|
|
rt_free(handle);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int nfs_rename(struct dfs_filesystem *fs, const char *src, const char *dest)
|
|
{
|
|
RENAME3args args;
|
|
RENAME3res res;
|
|
nfs_fh3 *sHandle;
|
|
nfs_fh3 *dHandle;
|
|
int ret = 0;
|
|
struct nfs_filesystem *nfs;
|
|
|
|
RT_ASSERT(fs != RT_NULL);
|
|
RT_ASSERT(fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)fs->data;
|
|
|
|
if (nfs->nfs_client == RT_NULL)
|
|
return -1;
|
|
|
|
sHandle = get_dir_handle(nfs, src);
|
|
if (sHandle == RT_NULL)
|
|
return -1;
|
|
|
|
dHandle = get_dir_handle(nfs, dest);
|
|
if (dHandle == RT_NULL)
|
|
return -1;
|
|
|
|
args.from.dir = *sHandle;
|
|
args.from.name = strrchr(src, '/') + 1;
|
|
if (args.from.name == RT_NULL)
|
|
args.from.name = (char *)src;
|
|
|
|
args.to.dir = *dHandle;
|
|
args.to.name = strrchr(src, '/') + 1;
|
|
if (args.to.name == RT_NULL)
|
|
args.to.name = (char *)dest;
|
|
|
|
memset(&res, '\0', sizeof(res));
|
|
|
|
if (nfsproc3_rename_3(args, &res, nfs->nfs_client) != RPC_SUCCESS)
|
|
{
|
|
rt_kprintf("Rename failed\n");
|
|
ret = -1;
|
|
}
|
|
else if (res.status != NFS3_OK)
|
|
{
|
|
rt_kprintf("Rename failed: %d\n", res.status);
|
|
ret = -1;
|
|
}
|
|
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)sHandle);
|
|
xdr_free((xdrproc_t)xdr_nfs_fh3, (char *)dHandle);
|
|
xdr_free((xdrproc_t)xdr_RENAME3res, (char *)&res);
|
|
return ret;
|
|
}
|
|
|
|
int nfs_getdents(struct dfs_fd *file, struct dirent *dirp, rt_uint32_t count)
|
|
{
|
|
nfs_dir *dir;
|
|
rt_uint32_t index;
|
|
struct dirent *d;
|
|
struct nfs_filesystem *nfs;
|
|
char *name;
|
|
|
|
dir = (nfs_dir *)(file->data);
|
|
RT_ASSERT(dir != RT_NULL);
|
|
RT_ASSERT(file->fs != RT_NULL);
|
|
RT_ASSERT(file->fs->data != RT_NULL);
|
|
nfs = (struct nfs_filesystem *)file->fs->data;
|
|
|
|
/* make integer count */
|
|
count = (count / sizeof(struct dirent)) * sizeof(struct dirent);
|
|
if (count == 0)
|
|
return -DFS_STATUS_EINVAL;
|
|
|
|
index = 0;
|
|
while (1)
|
|
{
|
|
char *fn;
|
|
|
|
d = dirp + index;
|
|
|
|
name = nfs_readdir(nfs, dir);
|
|
if (name == RT_NULL)
|
|
break;
|
|
|
|
d->d_type = DFS_DT_REG;
|
|
|
|
d->d_namlen = rt_strlen(name);
|
|
d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
|
|
rt_strncpy(d->d_name, name, rt_strlen(name) + 1);
|
|
|
|
index ++;
|
|
if (index * sizeof(struct dirent) >= count)
|
|
break;
|
|
}
|
|
|
|
return index * sizeof(struct dirent);
|
|
}
|
|
|
|
static const struct dfs_filesystem_operation _nfs =
|
|
{
|
|
"nfs",
|
|
DFS_FS_FLAG_DEFAULT,
|
|
nfs_mount,
|
|
nfs_unmount,
|
|
RT_NULL, /* mkfs */
|
|
RT_NULL, /* statfs */
|
|
nfs_open,
|
|
nfs_close,
|
|
nfs_ioctl,
|
|
nfs_read,
|
|
nfs_write,
|
|
RT_NULL, /* flush */
|
|
nfs_lseek,
|
|
nfs_getdents,
|
|
nfs_unlink,
|
|
nfs_stat,
|
|
nfs_rename,
|
|
};
|
|
|
|
int nfs_init(void)
|
|
{
|
|
/* register fatfs file system */
|
|
dfs_register(&_nfs);
|
|
|
|
return RT_EOK;
|
|
}
|