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fs/userfs: Support fchstat and chstat callback

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Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2021-08-10 13:46:26 +08:00
committed by Gustavo Henrique Nihei
parent 9d96c54b1b
commit a09f262f1e
3 changed files with 298 additions and 4 deletions
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libs/libc/userfs/lib_userfs.c
+84
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@@ -864,6 +864,78 @@ static inline int userfs_destroy_dispatch(FAR struct userfs_info_s *info,
return resp.ret < 0 ? OK : -ENOTCONN;
}
static inline int userfs_fchstat_dispatch(FAR struct userfs_info_s *info,
FAR struct userfs_fchstat_request_s *req, size_t reqlen)
{
struct userfs_fchstat_response_s resp;
ssize_t nsent;
/* Verify the request size */
if (reqlen != sizeof(struct userfs_fchstat_request_s))
{
return -EINVAL;
}
/* Dispatch the request */
DEBUGASSERT(info->userops != NULL && info->userops->fchstat != NULL);
resp.ret = info->userops->fchstat(info->volinfo, req->openinfo,
&req->buf, req->flags);
/* Send the response */
resp.resp = USERFS_RESP_FCHSTAT;
nsent = sendto(info->sockfd, &resp,
sizeof(struct userfs_fchstat_response_s),
0, (FAR struct sockaddr *)&info->client,
sizeof(struct sockaddr_in));
return nsent < 0 ? nsent : OK;
}
static inline int userfs_chstat_dispatch(FAR struct userfs_info_s *info,
FAR struct userfs_chstat_request_s *req, size_t reqlen)
{
struct userfs_chstat_response_s resp;
int pathlen;
size_t expected;
ssize_t nsent;
/* Verify the request size */
if (reqlen < SIZEOF_USERFS_CHSTAT_REQUEST_S(0))
{
return -EINVAL;
}
pathlen = strlen(req->relpath);
if (pathlen > info->mxwrite)
{
return -EINVAL;
}
expected = SIZEOF_USERFS_CHSTAT_REQUEST_S(pathlen);
if (expected >= reqlen)
{
return -EINVAL;
}
/* Dispatch the request */
DEBUGASSERT(info->userops != NULL && info->userops->chstat != NULL);
resp.ret = info->userops->chstat(info->volinfo, req->relpath,
&req->buf, req->flags);
/* Send the response */
resp.resp = USERFS_RESP_CHSTAT;
nsent = sendto(info->sockfd, &resp,
sizeof(struct userfs_chstat_response_s),
0, (FAR struct sockaddr *)&info->client,
sizeof(struct sockaddr_in));
return nsent < 0 ? nsent : OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
@@ -1136,6 +1208,18 @@ int userfs_run(FAR const char *mountpt,
nread);
break;
case USERFS_REQ_FCHSTAT:
ret = userfs_fchstat_dispatch(info,
(FAR struct userfs_fchstat_request_s *)info->iobuffer,
nread);
break;
case USERFS_REQ_CHSTAT:
ret = userfs_chstat_dispatch(info,
(FAR struct userfs_chstat_request_s *)info->iobuffer,
nread);
break;
default:
ferr("ERROR: Unrecognized request received: %u\n",
*info->iobuffer);