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authorM. Mohan Kumar <mohan@in.ibm.com>2011-12-14 13:58:45 +0530
committerAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2012-01-04 20:19:48 +0530
commitea75fc4ec581ab4dd072ab208f9689fa86ab73f3 (patch)
treeadee6ac5a0a09e8ec89d88b75cab12ef22241c95 /fsdev
parentb178adc3e78fa1ad274f8d78e43443c39f862143 (diff)
downloadqemu-arm-ea75fc4ec581ab4dd072ab208f9689fa86ab73f3.tar.gz
hw/9pfs: File ownership and others
Add file ownership interfaces like chmod/chown, utime update, rename, remove and truncating files for proxy FS Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'fsdev')
-rw-r--r--fsdev/virtfs-proxy-helper.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/fsdev/virtfs-proxy-helper.c b/fsdev/virtfs-proxy-helper.c
index 9b3c833058..204bb4a540 100644
--- a/fsdev/virtfs-proxy-helper.c
+++ b/fsdev/virtfs-proxy-helper.c
@@ -599,6 +599,12 @@ static int process_reply(int sock, int type,
case T_MKDIR:
case T_SYMLINK:
case T_LINK:
+ case T_CHMOD:
+ case T_CHOWN:
+ case T_TRUNCATE:
+ case T_UTIME:
+ case T_RENAME:
+ case T_REMOVE:
if (send_status(sock, out_iovec, retval) < 0) {
return -1;
}
@@ -620,7 +626,10 @@ static int process_reply(int sock, int type,
static int process_requests(int sock)
{
int retval = 0;
+ uint64_t offset;
ProxyHeader header;
+ int mode, uid, gid;
+ struct timespec spec[2];
V9fsString oldpath, path;
struct iovec in_iovec, out_iovec;
@@ -673,6 +682,80 @@ static int process_requests(int sock)
case T_READLINK:
retval = do_readlink(&in_iovec, &out_iovec);
break;
+ case T_CHMOD:
+ v9fs_string_init(&path);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ,
+ "sd", &path, &mode);
+ if (retval > 0) {
+ retval = chmod(path.data, mode);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ break;
+ case T_CHOWN:
+ v9fs_string_init(&path);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ, "sdd", &path,
+ &uid, &gid);
+ if (retval > 0) {
+ retval = lchown(path.data, uid, gid);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ break;
+ case T_TRUNCATE:
+ v9fs_string_init(&path);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ, "sq",
+ &path, &offset);
+ if (retval > 0) {
+ retval = truncate(path.data, offset);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ break;
+ case T_UTIME:
+ v9fs_string_init(&path);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ, "sqqqq", &path,
+ &spec[0].tv_sec, &spec[0].tv_nsec,
+ &spec[1].tv_sec, &spec[1].tv_nsec);
+ if (retval > 0) {
+ retval = qemu_utimens(path.data, spec);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ break;
+ case T_RENAME:
+ v9fs_string_init(&path);
+ v9fs_string_init(&oldpath);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ,
+ "ss", &oldpath, &path);
+ if (retval > 0) {
+ retval = rename(oldpath.data, path.data);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&oldpath);
+ v9fs_string_free(&path);
+ break;
+ case T_REMOVE:
+ v9fs_string_init(&path);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ, "s", &path);
+ if (retval > 0) {
+ retval = remove(path.data);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ break;
default:
goto err_out;
break;