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- /****************************************************************************
- * fs/hostfs/hostfs_rpmsg_server.c
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership. The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- ****************************************************************************/
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <dirent.h>
- #include <stdio.h>
- #include <string.h>
- #include <fcntl.h>
- #include <errno.h>
- #include <nuttx/kmalloc.h>
- #include <nuttx/fs/fs.h>
- #include <nuttx/fs/hostfs_rpmsg.h>
- #include <nuttx/rptun/openamp.h>
- #include "hostfs_rpmsg.h"
- /****************************************************************************
- * Private Types
- ****************************************************************************/
- struct hostfs_rpmsg_server_s
- {
- struct rpmsg_endpoint ept;
- struct file files[CONFIG_NFILE_DESCRIPTORS];
- void *dirs[CONFIG_NFILE_DESCRIPTORS];
- sem_t sem;
- };
- /****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
- static int hostfs_rpmsg_open_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_close_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_read_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_write_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_lseek_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_ioctl_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_sync_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_dup_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_fstat_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_ftruncate_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_opendir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_readdir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_rewinddir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_closedir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_);
- static int hostfs_rpmsg_statfs_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv);
- static int hostfs_rpmsg_unlink_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv);
- static int hostfs_rpmsg_mkdir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv);
- static int hostfs_rpmsg_rmdir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv);
- static int hostfs_rpmsg_rename_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv);
- static int hostfs_rpmsg_stat_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv);
- static void hostfs_rpmsg_ns_bind(FAR struct rpmsg_device *rdev,
- FAR void *priv_, FAR const char *name,
- uint32_t dest);
- static void hostfs_rpmsg_ns_unbind(FAR struct rpmsg_endpoint *ept);
- static int hostfs_rpmsg_ept_cb(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len, uint32_t src,
- FAR void *priv);
- /****************************************************************************
- * Private Data
- ****************************************************************************/
- static const rpmsg_ept_cb g_hostfs_rpmsg_handler[] =
- {
- [HOSTFS_RPMSG_OPEN] = hostfs_rpmsg_open_handler,
- [HOSTFS_RPMSG_CLOSE] = hostfs_rpmsg_close_handler,
- [HOSTFS_RPMSG_READ] = hostfs_rpmsg_read_handler,
- [HOSTFS_RPMSG_WRITE] = hostfs_rpmsg_write_handler,
- [HOSTFS_RPMSG_LSEEK] = hostfs_rpmsg_lseek_handler,
- [HOSTFS_RPMSG_IOCTL] = hostfs_rpmsg_ioctl_handler,
- [HOSTFS_RPMSG_SYNC] = hostfs_rpmsg_sync_handler,
- [HOSTFS_RPMSG_DUP] = hostfs_rpmsg_dup_handler,
- [HOSTFS_RPMSG_FSTAT] = hostfs_rpmsg_fstat_handler,
- [HOSTFS_RPMSG_FTRUNCATE] = hostfs_rpmsg_ftruncate_handler,
- [HOSTFS_RPMSG_OPENDIR] = hostfs_rpmsg_opendir_handler,
- [HOSTFS_RPMSG_READDIR] = hostfs_rpmsg_readdir_handler,
- [HOSTFS_RPMSG_REWINDDIR] = hostfs_rpmsg_rewinddir_handler,
- [HOSTFS_RPMSG_CLOSEDIR] = hostfs_rpmsg_closedir_handler,
- [HOSTFS_RPMSG_STATFS] = hostfs_rpmsg_statfs_handler,
- [HOSTFS_RPMSG_UNLINK] = hostfs_rpmsg_unlink_handler,
- [HOSTFS_RPMSG_MKDIR] = hostfs_rpmsg_mkdir_handler,
- [HOSTFS_RPMSG_RMDIR] = hostfs_rpmsg_rmdir_handler,
- [HOSTFS_RPMSG_RENAME] = hostfs_rpmsg_rename_handler,
- [HOSTFS_RPMSG_STAT] = hostfs_rpmsg_stat_handler,
- };
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- static int hostfs_rpmsg_open_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_open_s *msg = data;
- int i;
- int ret = -ENOENT;
- nxsem_wait(&priv->sem);
- for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
- {
- if (!priv->files[i].f_inode)
- {
- ret = file_open(&priv->files[i], msg->pathname, msg->flags,
- msg->mode);
- if (ret >= 0)
- {
- ret = i;
- }
- break;
- }
- }
- nxsem_post(&priv->sem);
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_close_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_close_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- nxsem_wait(&priv->sem);
- ret = file_close(&priv->files[msg->fd]);
- nxsem_post(&priv->sem);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_read_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_read_s *msg = data;
- FAR struct hostfs_rpmsg_read_s *rsp;
- int ret = -ENOENT;
- uint32_t space;
- rsp = rpmsg_get_tx_payload_buffer(ept, &space, true);
- if (!rsp)
- {
- return -ENOMEM;
- }
- *rsp = *msg;
- space -= sizeof(*msg);
- if (space > msg->count)
- {
- space = msg->count;
- }
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_read(&priv->files[msg->fd], rsp->buf, space);
- }
- rsp->header.result = ret;
- return rpmsg_send_nocopy(ept, rsp, (ret < 0 ? 0 : ret) + sizeof(*rsp));
- }
- static int hostfs_rpmsg_write_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_write_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_write(&priv->files[msg->fd], msg->buf, msg->count);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_lseek_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_lseek_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_seek(&priv->files[msg->fd], msg->offset, msg->whence);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_ioctl_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_ioctl_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_ioctl(&priv->files[msg->fd], msg->request, msg->arg);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_sync_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_sync_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_fsync(&priv->files[msg->fd]);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_dup_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_dup_s *msg = data;
- int i;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- nxsem_wait(&priv->sem);
- for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
- {
- if (!priv->files[i].f_inode)
- {
- ret = file_dup2(&priv->files[msg->fd], &priv->files[i]);
- if (ret >= 0)
- {
- ret = i;
- }
- break;
- }
- }
- nxsem_post(&priv->sem);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_fstat_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_fstat_s *msg = data;
- int ret = -ENOENT;
- struct stat buf;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_fstat(&priv->files[msg->fd], &buf);
- if (ret >= 0)
- {
- msg->buf = buf;
- }
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_ftruncate_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_ftruncate_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 0 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = file_truncate(&priv->files[msg->fd], msg->length);
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_opendir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_opendir_s *msg = data;
- FAR void *dir;
- int i;
- int ret = -ENOENT;
- dir = opendir(msg->pathname);
- if (dir)
- {
- nxsem_wait(&priv->sem);
- for (i = 1; i < CONFIG_NFILE_DESCRIPTORS; i++)
- {
- if (!priv->dirs[i])
- {
- priv->dirs[i] = dir;
- ret = i;
- break;
- }
- }
- nxsem_post(&priv->sem);
- if (ret < 0)
- {
- closedir(dir);
- }
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_readdir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_readdir_s *msg = data;
- FAR struct dirent *entry;
- int ret = -ENOENT;
- if (msg->fd >= 1 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- entry = readdir(priv->dirs[msg->fd]);
- if (entry)
- {
- msg->type = entry->d_type;
- strcpy(msg->name, entry->d_name);
- len += strlen(entry->d_name) + 1;
- ret = 0;
- }
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, len);
- }
- static int hostfs_rpmsg_rewinddir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_rewinddir_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 1 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- rewinddir(priv->dirs[msg->fd]);
- ret = 0;
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_closedir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv_)
- {
- FAR struct hostfs_rpmsg_server_s *priv = priv_;
- FAR struct hostfs_rpmsg_closedir_s *msg = data;
- int ret = -ENOENT;
- if (msg->fd >= 1 && msg->fd < CONFIG_NFILE_DESCRIPTORS)
- {
- ret = closedir(priv->dirs[msg->fd]);
- nxsem_wait(&priv->sem);
- priv->dirs[msg->fd] = NULL;
- nxsem_post(&priv->sem);
- ret = ret ? -get_errno() : 0;
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_statfs_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv)
- {
- FAR struct hostfs_rpmsg_statfs_s *msg = data;
- struct statfs buf;
- int ret;
- ret = statfs(msg->pathname, &buf);
- if (ret)
- {
- ret = -get_errno();
- }
- else
- {
- msg->buf = buf;
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_unlink_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv)
- {
- FAR struct hostfs_rpmsg_unlink_s *msg = data;
- int ret;
- ret = unlink(msg->pathname);
- msg->header.result = ret ? -get_errno() : 0;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_mkdir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv)
- {
- FAR struct hostfs_rpmsg_mkdir_s *msg = data;
- int ret;
- ret = mkdir(msg->pathname, msg->mode);
- msg->header.result = ret ? -get_errno() : 0;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_rmdir_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv)
- {
- FAR struct hostfs_rpmsg_rmdir_s *msg = data;
- int ret;
- ret = rmdir(msg->pathname);
- msg->header.result = ret ? -get_errno() : 0;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_rename_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv)
- {
- FAR struct hostfs_rpmsg_rename_s *msg = data;
- FAR char *newpath;
- size_t oldlen;
- int ret;
- oldlen = (strlen(msg->pathname) + 1 + 0x7) & ~0x7;
- newpath = msg->pathname + oldlen;
- ret = rename(msg->pathname, newpath);
- msg->header.result = ret ? -get_errno() : 0;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static int hostfs_rpmsg_stat_handler(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len,
- uint32_t src, FAR void *priv)
- {
- FAR struct hostfs_rpmsg_stat_s *msg = data;
- struct stat buf;
- int ret;
- ret = stat(msg->pathname, &buf);
- if (ret)
- {
- ret = -get_errno();
- }
- else
- {
- msg->buf = buf;
- }
- msg->header.result = ret;
- return rpmsg_send(ept, msg, sizeof(*msg));
- }
- static void hostfs_rpmsg_ns_bind(FAR struct rpmsg_device *rdev,
- FAR void *priv_, FAR const char *name,
- uint32_t dest)
- {
- FAR struct hostfs_rpmsg_server_s *priv;
- int ret;
- if (strcmp(name, HOSTFS_RPMSG_EPT_NAME))
- {
- return;
- }
- priv = kmm_zalloc(sizeof(*priv));
- if (!priv)
- {
- return;
- }
- priv->ept.priv = priv;
- nxsem_init(&priv->sem, 0, 1);
- ret = rpmsg_create_ept(&priv->ept, rdev, HOSTFS_RPMSG_EPT_NAME,
- RPMSG_ADDR_ANY, dest,
- hostfs_rpmsg_ept_cb, hostfs_rpmsg_ns_unbind);
- if (ret)
- {
- nxsem_destroy(&priv->sem);
- kmm_free(priv);
- }
- }
- static void hostfs_rpmsg_ns_unbind(FAR struct rpmsg_endpoint *ept)
- {
- FAR struct hostfs_rpmsg_server_s *priv = ept->priv;
- int i;
- for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
- {
- if (priv->files[i].f_inode)
- {
- file_close(&priv->files[i]);
- }
- }
- for (i = 0; i < CONFIG_NFILE_DESCRIPTORS; i++)
- {
- if (priv->dirs[i])
- {
- closedir(priv->dirs[i]);
- }
- }
- rpmsg_destroy_ept(&priv->ept);
- nxsem_destroy(&priv->sem);
- kmm_free(priv);
- }
- static int hostfs_rpmsg_ept_cb(FAR struct rpmsg_endpoint *ept,
- FAR void *data, size_t len, uint32_t src,
- FAR void *priv)
- {
- struct hostfs_rpmsg_header_s *header = data;
- uint32_t command = header->command;
- if (command < ARRAY_SIZE(g_hostfs_rpmsg_handler))
- {
- return g_hostfs_rpmsg_handler[command](ept, data, len, src, priv);
- }
- return -EINVAL;
- }
- int hostfs_rpmsg_server_init(void)
- {
- return rpmsg_register_callback(NULL,
- NULL,
- NULL,
- hostfs_rpmsg_ns_bind);
- }
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