summaryrefslogtreecommitdiff
path: root/fs/fuse/xattr.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/fuse/xattr.c')
-rw-r--r--fs/fuse/xattr.c194
1 files changed, 78 insertions, 116 deletions
diff --git a/fs/fuse/xattr.c b/fs/fuse/xattr.c
index 433717640f78..93dfb06b6cea 100644
--- a/fs/fuse/xattr.c
+++ b/fs/fuse/xattr.c
@@ -12,76 +12,78 @@
#include <linux/posix_acl_xattr.h>
int fuse_setxattr(struct inode *inode, const char *name, const void *value,
- size_t size, int flags)
+ size_t size, int flags, unsigned int extra_flags)
{
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
struct fuse_setxattr_in inarg;
int err;
- if (fc->no_setxattr)
+ if (fm->fc->no_setxattr)
return -EOPNOTSUPP;
memset(&inarg, 0, sizeof(inarg));
inarg.size = size;
inarg.flags = flags;
- args.in.h.opcode = FUSE_SETXATTR;
- args.in.h.nodeid = get_node_id(inode);
- args.in.numargs = 3;
- args.in.args[0].size = sizeof(inarg);
- args.in.args[0].value = &inarg;
- args.in.args[1].size = strlen(name) + 1;
- args.in.args[1].value = name;
- args.in.args[2].size = size;
- args.in.args[2].value = value;
- err = fuse_simple_request(fc, &args);
+ inarg.setxattr_flags = extra_flags;
+
+ args.opcode = FUSE_SETXATTR;
+ args.nodeid = get_node_id(inode);
+ args.in_numargs = 3;
+ args.in_args[0].size = fm->fc->setxattr_ext ?
+ sizeof(inarg) : FUSE_COMPAT_SETXATTR_IN_SIZE;
+ args.in_args[0].value = &inarg;
+ args.in_args[1].size = strlen(name) + 1;
+ args.in_args[1].value = name;
+ args.in_args[2].size = size;
+ args.in_args[2].value = value;
+ err = fuse_simple_request(fm, &args);
if (err == -ENOSYS) {
- fc->no_setxattr = 1;
+ fm->fc->no_setxattr = 1;
err = -EOPNOTSUPP;
}
- if (!err) {
- fuse_invalidate_attr(inode);
+ if (!err)
fuse_update_ctime(inode);
- }
+
return err;
}
ssize_t fuse_getxattr(struct inode *inode, const char *name, void *value,
size_t size)
{
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
struct fuse_getxattr_in inarg;
struct fuse_getxattr_out outarg;
ssize_t ret;
- if (fc->no_getxattr)
+ if (fm->fc->no_getxattr)
return -EOPNOTSUPP;
memset(&inarg, 0, sizeof(inarg));
inarg.size = size;
- args.in.h.opcode = FUSE_GETXATTR;
- args.in.h.nodeid = get_node_id(inode);
- args.in.numargs = 2;
- args.in.args[0].size = sizeof(inarg);
- args.in.args[0].value = &inarg;
- args.in.args[1].size = strlen(name) + 1;
- args.in.args[1].value = name;
+ args.opcode = FUSE_GETXATTR;
+ args.nodeid = get_node_id(inode);
+ args.in_numargs = 2;
+ args.in_args[0].size = sizeof(inarg);
+ args.in_args[0].value = &inarg;
+ args.in_args[1].size = strlen(name) + 1;
+ args.in_args[1].value = name;
/* This is really two different operations rolled into one */
- args.out.numargs = 1;
+ args.out_numargs = 1;
if (size) {
- args.out.argvar = 1;
- args.out.args[0].size = size;
- args.out.args[0].value = value;
+ args.out_argvar = true;
+ args.out_args[0].size = size;
+ args.out_args[0].value = value;
} else {
- args.out.args[0].size = sizeof(outarg);
- args.out.args[0].value = &outarg;
+ args.out_args[0].size = sizeof(outarg);
+ args.out_args[0].value = &outarg;
}
- ret = fuse_simple_request(fc, &args);
+ ret = fuse_simple_request(fm, &args);
if (!ret && !size)
- ret = min_t(ssize_t, outarg.size, XATTR_SIZE_MAX);
+ ret = min_t(size_t, outarg.size, XATTR_SIZE_MAX);
if (ret == -ENOSYS) {
- fc->no_getxattr = 1;
+ fm->fc->no_getxattr = 1;
ret = -EOPNOTSUPP;
}
return ret;
@@ -107,42 +109,45 @@ static int fuse_verify_xattr_list(char *list, size_t size)
ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
{
struct inode *inode = d_inode(entry);
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
struct fuse_getxattr_in inarg;
struct fuse_getxattr_out outarg;
ssize_t ret;
- if (!fuse_allow_current_process(fc))
+ if (fuse_is_bad(inode))
+ return -EIO;
+
+ if (!fuse_allow_current_process(fm->fc))
return -EACCES;
- if (fc->no_listxattr)
+ if (fm->fc->no_listxattr)
return -EOPNOTSUPP;
memset(&inarg, 0, sizeof(inarg));
inarg.size = size;
- args.in.h.opcode = FUSE_LISTXATTR;
- args.in.h.nodeid = get_node_id(inode);
- args.in.numargs = 1;
- args.in.args[0].size = sizeof(inarg);
- args.in.args[0].value = &inarg;
+ args.opcode = FUSE_LISTXATTR;
+ args.nodeid = get_node_id(inode);
+ args.in_numargs = 1;
+ args.in_args[0].size = sizeof(inarg);
+ args.in_args[0].value = &inarg;
/* This is really two different operations rolled into one */
- args.out.numargs = 1;
+ args.out_numargs = 1;
if (size) {
- args.out.argvar = 1;
- args.out.args[0].size = size;
- args.out.args[0].value = list;
+ args.out_argvar = true;
+ args.out_args[0].size = size;
+ args.out_args[0].value = list;
} else {
- args.out.args[0].size = sizeof(outarg);
- args.out.args[0].value = &outarg;
+ args.out_args[0].size = sizeof(outarg);
+ args.out_args[0].value = &outarg;
}
- ret = fuse_simple_request(fc, &args);
+ ret = fuse_simple_request(fm, &args);
if (!ret && !size)
- ret = min_t(ssize_t, outarg.size, XATTR_LIST_MAX);
+ ret = min_t(size_t, outarg.size, XATTR_LIST_MAX);
if (ret > 0 && size)
ret = fuse_verify_xattr_list(list, ret);
if (ret == -ENOSYS) {
- fc->no_listxattr = 1;
+ fm->fc->no_listxattr = 1;
ret = -EOPNOTSUPP;
}
return ret;
@@ -150,27 +155,27 @@ ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
int fuse_removexattr(struct inode *inode, const char *name)
{
- struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_mount *fm = get_fuse_mount(inode);
FUSE_ARGS(args);
int err;
- if (fc->no_removexattr)
+ if (fm->fc->no_removexattr)
return -EOPNOTSUPP;
- args.in.h.opcode = FUSE_REMOVEXATTR;
- args.in.h.nodeid = get_node_id(inode);
- args.in.numargs = 1;
- args.in.args[0].size = strlen(name) + 1;
- args.in.args[0].value = name;
- err = fuse_simple_request(fc, &args);
+ args.opcode = FUSE_REMOVEXATTR;
+ args.nodeid = get_node_id(inode);
+ args.in_numargs = 2;
+ fuse_set_zero_arg0(&args);
+ args.in_args[1].size = strlen(name) + 1;
+ args.in_args[1].value = name;
+ err = fuse_simple_request(fm, &args);
if (err == -ENOSYS) {
- fc->no_removexattr = 1;
+ fm->fc->no_removexattr = 1;
err = -EOPNOTSUPP;
}
- if (!err) {
- fuse_invalidate_attr(inode);
+ if (!err)
fuse_update_ctime(inode);
- }
+
return err;
}
@@ -178,38 +183,25 @@ static int fuse_xattr_get(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, void *value, size_t size)
{
+ if (fuse_is_bad(inode))
+ return -EIO;
+
return fuse_getxattr(inode, name, value, size);
}
static int fuse_xattr_set(const struct xattr_handler *handler,
+ struct mnt_idmap *idmap,
struct dentry *dentry, struct inode *inode,
const char *name, const void *value, size_t size,
int flags)
{
+ if (fuse_is_bad(inode))
+ return -EIO;
+
if (!value)
return fuse_removexattr(inode, name);
- return fuse_setxattr(inode, name, value, size, flags);
-}
-
-static bool no_xattr_list(struct dentry *dentry)
-{
- return false;
-}
-
-static int no_xattr_get(const struct xattr_handler *handler,
- struct dentry *dentry, struct inode *inode,
- const char *name, void *value, size_t size)
-{
- return -EOPNOTSUPP;
-}
-
-static int no_xattr_set(const struct xattr_handler *handler,
- struct dentry *dentry, struct inode *nodee,
- const char *name, const void *value,
- size_t size, int flags)
-{
- return -EOPNOTSUPP;
+ return fuse_setxattr(inode, name, value, size, flags, 0);
}
static const struct xattr_handler fuse_xattr_handler = {
@@ -218,37 +210,7 @@ static const struct xattr_handler fuse_xattr_handler = {
.set = fuse_xattr_set,
};
-const struct xattr_handler *fuse_xattr_handlers[] = {
- &fuse_xattr_handler,
- NULL
-};
-
-const struct xattr_handler *fuse_acl_xattr_handlers[] = {
- &posix_acl_access_xattr_handler,
- &posix_acl_default_xattr_handler,
- &fuse_xattr_handler,
- NULL
-};
-
-static const struct xattr_handler fuse_no_acl_access_xattr_handler = {
- .name = XATTR_NAME_POSIX_ACL_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .list = no_xattr_list,
- .get = no_xattr_get,
- .set = no_xattr_set,
-};
-
-static const struct xattr_handler fuse_no_acl_default_xattr_handler = {
- .name = XATTR_NAME_POSIX_ACL_DEFAULT,
- .flags = ACL_TYPE_ACCESS,
- .list = no_xattr_list,
- .get = no_xattr_get,
- .set = no_xattr_set,
-};
-
-const struct xattr_handler *fuse_no_acl_xattr_handlers[] = {
- &fuse_no_acl_access_xattr_handler,
- &fuse_no_acl_default_xattr_handler,
+const struct xattr_handler * const fuse_xattr_handlers[] = {
&fuse_xattr_handler,
NULL
};
generated by cgit (git 2.34.1) at 2025-12-25 11:30:58 +0000