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Diffstat (limited to 'fs/ceph/xattr.c')
-rw-r--r--fs/ceph/xattr.c162
1 files changed, 104 insertions, 58 deletions
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 806183959c47..ad1f30bea175 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -57,7 +57,8 @@ static bool ceph_vxattrcb_layout_exists(struct ceph_inode_info *ci)
static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
size_t size)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+ struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
+ struct ceph_client *cl = fsc->client;
struct ceph_osd_client *osdc = &fsc->client->osdc;
struct ceph_string *pool_ns;
s64 pool = ci->i_layout.pool_id;
@@ -69,7 +70,7 @@ static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);
- dout("ceph_vxattrcb_layout %p\n", &ci->netfs.inode);
+ doutc(cl, "%p\n", &ci->netfs.inode);
down_read(&osdc->lock);
pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
if (pool_name) {
@@ -161,7 +162,7 @@ static ssize_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci,
char *val, size_t size)
{
ssize_t ret;
- struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+ struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
struct ceph_osd_client *osdc = &fsc->client->osdc;
s64 pool = ci->i_layout.pool_id;
const char *pool_name;
@@ -248,8 +249,7 @@ static ssize_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,
static ssize_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
size_t size)
{
- return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_rctime.tv_sec,
- ci->i_rctime.tv_nsec);
+ return ceph_fmt_xattr(val, size, "%ptSp", &ci->i_rctime);
}
/* dir pin */
@@ -306,14 +306,13 @@ static bool ceph_vxattrcb_snap_btime_exists(struct ceph_inode_info *ci)
static ssize_t ceph_vxattrcb_snap_btime(struct ceph_inode_info *ci, char *val,
size_t size)
{
- return ceph_fmt_xattr(val, size, "%lld.%09ld", ci->i_snap_btime.tv_sec,
- ci->i_snap_btime.tv_nsec);
+ return ceph_fmt_xattr(val, size, "%ptSp", &ci->i_snap_btime);
}
static ssize_t ceph_vxattrcb_cluster_fsid(struct ceph_inode_info *ci,
char *val, size_t size)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+ struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
return ceph_fmt_xattr(val, size, "%pU", &fsc->client->fsid);
}
@@ -321,7 +320,7 @@ static ssize_t ceph_vxattrcb_cluster_fsid(struct ceph_inode_info *ci,
static ssize_t ceph_vxattrcb_client_id(struct ceph_inode_info *ci,
char *val, size_t size)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(ci->netfs.inode.i_sb);
+ struct ceph_fs_client *fsc = ceph_sb_to_fs_client(ci->netfs.inode.i_sb);
return ceph_fmt_xattr(val, size, "client%lld",
ceph_client_gid(fsc->client));
@@ -352,6 +351,24 @@ static ssize_t ceph_vxattrcb_auth_mds(struct ceph_inode_info *ci,
return ret;
}
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+static bool ceph_vxattrcb_fscrypt_auth_exists(struct ceph_inode_info *ci)
+{
+ return ci->fscrypt_auth_len;
+}
+
+static ssize_t ceph_vxattrcb_fscrypt_auth(struct ceph_inode_info *ci,
+ char *val, size_t size)
+{
+ if (size) {
+ if (size < ci->fscrypt_auth_len)
+ return -ERANGE;
+ memcpy(val, ci->fscrypt_auth, ci->fscrypt_auth_len);
+ }
+ return ci->fscrypt_auth_len;
+}
+#endif /* CONFIG_FS_ENCRYPTION */
+
#define CEPH_XATTR_NAME(_type, _name) XATTR_CEPH_PREFIX #_type "." #_name
#define CEPH_XATTR_NAME2(_type, _name, _name2) \
XATTR_CEPH_PREFIX #_type "." #_name "." #_name2
@@ -500,6 +517,15 @@ static struct ceph_vxattr ceph_common_vxattrs[] = {
.exists_cb = NULL,
.flags = VXATTR_FLAG_READONLY,
},
+#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
+ {
+ .name = "ceph.fscrypt.auth",
+ .name_size = sizeof("ceph.fscrypt.auth"),
+ .getxattr_cb = ceph_vxattrcb_fscrypt_auth,
+ .exists_cb = ceph_vxattrcb_fscrypt_auth_exists,
+ .flags = VXATTR_FLAG_READONLY,
+ },
+#endif /* CONFIG_FS_ENCRYPTION */
{ .name = NULL, 0 } /* Required table terminator */
};
@@ -543,6 +569,8 @@ static int __set_xattr(struct ceph_inode_info *ci,
int flags, int update_xattr,
struct ceph_inode_xattr **newxattr)
{
+ struct inode *inode = &ci->netfs.inode;
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct rb_node **p;
struct rb_node *parent = NULL;
struct ceph_inode_xattr *xattr = NULL;
@@ -599,7 +627,7 @@ static int __set_xattr(struct ceph_inode_info *ci,
xattr->should_free_name = update_xattr;
ci->i_xattrs.count++;
- dout("%s count=%d\n", __func__, ci->i_xattrs.count);
+ doutc(cl, "count=%d\n", ci->i_xattrs.count);
} else {
kfree(*newxattr);
*newxattr = NULL;
@@ -627,13 +655,13 @@ static int __set_xattr(struct ceph_inode_info *ci,
if (new) {
rb_link_node(&xattr->node, parent, p);
rb_insert_color(&xattr->node, &ci->i_xattrs.index);
- dout("%s p=%p\n", __func__, p);
+ doutc(cl, "p=%p\n", p);
}
- dout("%s added %llx.%llx xattr %p %.*s=%.*s%s\n", __func__,
- ceph_vinop(&ci->netfs.inode), xattr, name_len, name,
- min(val_len, MAX_XATTR_VAL_PRINT_LEN), val,
- val_len > MAX_XATTR_VAL_PRINT_LEN ? "..." : "");
+ doutc(cl, "added %p %llx.%llx xattr %p %.*s=%.*s%s\n", inode,
+ ceph_vinop(inode), xattr, name_len, name, min(val_len,
+ MAX_XATTR_VAL_PRINT_LEN), val,
+ val_len > MAX_XATTR_VAL_PRINT_LEN ? "..." : "");
return 0;
}
@@ -641,6 +669,7 @@ static int __set_xattr(struct ceph_inode_info *ci,
static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,
const char *name)
{
+ struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
struct rb_node **p;
struct rb_node *parent = NULL;
struct ceph_inode_xattr *xattr = NULL;
@@ -661,13 +690,13 @@ static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,
else {
int len = min(xattr->val_len, MAX_XATTR_VAL_PRINT_LEN);
- dout("%s %s: found %.*s%s\n", __func__, name, len,
- xattr->val, xattr->val_len > len ? "..." : "");
+ doutc(cl, "%s found %.*s%s\n", name, len, xattr->val,
+ xattr->val_len > len ? "..." : "");
return xattr;
}
}
- dout("%s %s: not found\n", __func__, name);
+ doutc(cl, "%s not found\n", name);
return NULL;
}
@@ -708,19 +737,20 @@ static int __remove_xattr(struct ceph_inode_info *ci,
static char *__copy_xattr_names(struct ceph_inode_info *ci,
char *dest)
{
+ struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
struct rb_node *p;
struct ceph_inode_xattr *xattr = NULL;
p = rb_first(&ci->i_xattrs.index);
- dout("__copy_xattr_names count=%d\n", ci->i_xattrs.count);
+ doutc(cl, "count=%d\n", ci->i_xattrs.count);
while (p) {
xattr = rb_entry(p, struct ceph_inode_xattr, node);
memcpy(dest, xattr->name, xattr->name_len);
dest[xattr->name_len] = '\0';
- dout("dest=%s %p (%s) (%d/%d)\n", dest, xattr, xattr->name,
- xattr->name_len, ci->i_xattrs.names_size);
+ doutc(cl, "dest=%s %p (%s) (%d/%d)\n", dest, xattr, xattr->name,
+ xattr->name_len, ci->i_xattrs.names_size);
dest += xattr->name_len + 1;
p = rb_next(p);
@@ -731,19 +761,19 @@ static char *__copy_xattr_names(struct ceph_inode_info *ci,
void __ceph_destroy_xattrs(struct ceph_inode_info *ci)
{
+ struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
struct rb_node *p, *tmp;
struct ceph_inode_xattr *xattr = NULL;
p = rb_first(&ci->i_xattrs.index);
- dout("__ceph_destroy_xattrs p=%p\n", p);
+ doutc(cl, "p=%p\n", p);
while (p) {
xattr = rb_entry(p, struct ceph_inode_xattr, node);
tmp = p;
p = rb_next(tmp);
- dout("__ceph_destroy_xattrs next p=%p (%.*s)\n", p,
- xattr->name_len, xattr->name);
+ doutc(cl, "next p=%p (%.*s)\n", p, xattr->name_len, xattr->name);
rb_erase(tmp, &ci->i_xattrs.index);
__free_xattr(xattr);
@@ -760,6 +790,7 @@ static int __build_xattrs(struct inode *inode)
__releases(ci->i_ceph_lock)
__acquires(ci->i_ceph_lock)
{
+ struct ceph_client *cl = ceph_inode_to_client(inode);
u32 namelen;
u32 numattr = 0;
void *p, *end;
@@ -771,8 +802,8 @@ static int __build_xattrs(struct inode *inode)
int err = 0;
int i;
- dout("__build_xattrs() len=%d\n",
- ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);
+ doutc(cl, "len=%d\n",
+ ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);
if (ci->i_xattrs.index_version >= ci->i_xattrs.version)
return 0; /* already built */
@@ -847,6 +878,8 @@ bad:
static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,
int val_size)
{
+ struct ceph_client *cl = ceph_inode_to_client(&ci->netfs.inode);
+
/*
* 4 bytes for the length, and additional 4 bytes per each xattr name,
* 4 bytes per each value
@@ -854,9 +887,8 @@ static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,
int size = 4 + ci->i_xattrs.count*(4 + 4) +
ci->i_xattrs.names_size +
ci->i_xattrs.vals_size;
- dout("__get_required_blob_size c=%d names.size=%d vals.size=%d\n",
- ci->i_xattrs.count, ci->i_xattrs.names_size,
- ci->i_xattrs.vals_size);
+ doutc(cl, "c=%d names.size=%d vals.size=%d\n", ci->i_xattrs.count,
+ ci->i_xattrs.names_size, ci->i_xattrs.vals_size);
if (name_size)
size += 4 + 4 + name_size + val_size;
@@ -865,19 +897,21 @@ static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,
}
/*
- * If there are dirty xattrs, reencode xattrs into the prealloc_blob
+ * If there are dirty xattrs, re-encode xattrs into the prealloc_blob
* and swap into place. It returns the old i_xattrs.blob (or NULL) so
* that it can be freed by the caller as the i_ceph_lock is likely to be
* held.
*/
struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci)
{
+ struct inode *inode = &ci->netfs.inode;
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct rb_node *p;
struct ceph_inode_xattr *xattr = NULL;
struct ceph_buffer *old_blob = NULL;
void *dest;
- dout("__build_xattrs_blob %p\n", &ci->netfs.inode);
+ doutc(cl, "%p %llx.%llx\n", inode, ceph_vinop(inode));
if (ci->i_xattrs.dirty) {
int need = __get_required_blob_size(ci, 0, 0);
@@ -935,6 +969,7 @@ static inline int __get_request_mask(struct inode *in) {
ssize_t __ceph_getxattr(struct inode *inode, const char *name, void *value,
size_t size)
{
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_inode_xattr *xattr;
struct ceph_vxattr *vxattr;
@@ -973,8 +1008,9 @@ handle_non_vxattrs:
req_mask = __get_request_mask(inode);
spin_lock(&ci->i_ceph_lock);
- dout("getxattr %p name '%s' ver=%lld index_ver=%lld\n", inode, name,
- ci->i_xattrs.version, ci->i_xattrs.index_version);
+ doutc(cl, "%p %llx.%llx name '%s' ver=%lld index_ver=%lld\n", inode,
+ ceph_vinop(inode), name, ci->i_xattrs.version,
+ ci->i_xattrs.index_version);
if (ci->i_xattrs.version == 0 ||
!((req_mask & CEPH_CAP_XATTR_SHARED) ||
@@ -983,8 +1019,9 @@ handle_non_vxattrs:
/* security module gets xattr while filling trace */
if (current->journal_info) {
- pr_warn_ratelimited("sync getxattr %p "
- "during filling trace\n", inode);
+ pr_warn_ratelimited_client(cl,
+ "sync %p %llx.%llx during filling trace\n",
+ inode, ceph_vinop(inode));
return -EBUSY;
}
@@ -1026,14 +1063,16 @@ out:
ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
{
struct inode *inode = d_inode(dentry);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
bool len_only = (size == 0);
u32 namelen;
int err;
spin_lock(&ci->i_ceph_lock);
- dout("listxattr %p ver=%lld index_ver=%lld\n", inode,
- ci->i_xattrs.version, ci->i_xattrs.index_version);
+ doutc(cl, "%p %llx.%llx ver=%lld index_ver=%lld\n", inode,
+ ceph_vinop(inode), ci->i_xattrs.version,
+ ci->i_xattrs.index_version);
if (ci->i_xattrs.version == 0 ||
!__ceph_caps_issued_mask_metric(ci, CEPH_CAP_XATTR_SHARED, 1)) {
@@ -1067,7 +1106,8 @@ out:
static int ceph_sync_setxattr(struct inode *inode, const char *name,
const char *value, size_t size, int flags)
{
- struct ceph_fs_client *fsc = ceph_sb_to_client(inode->i_sb);
+ struct ceph_fs_client *fsc = ceph_sb_to_fs_client(inode->i_sb);
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_inode_info *ci = ceph_inode(inode);
struct ceph_mds_request *req;
struct ceph_mds_client *mdsc = fsc->mdsc;
@@ -1092,7 +1132,7 @@ static int ceph_sync_setxattr(struct inode *inode, const char *name,
flags |= CEPH_XATTR_REMOVE;
}
- dout("setxattr value size: %zu\n", size);
+ doutc(cl, "name %s value size %zu\n", name, size);
/* do request */
req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS);
@@ -1121,10 +1161,10 @@ static int ceph_sync_setxattr(struct inode *inode, const char *name,
req->r_num_caps = 1;
req->r_inode_drop = CEPH_CAP_XATTR_SHARED;
- dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);
+ doutc(cl, "xattr.ver (before): %lld\n", ci->i_xattrs.version);
err = ceph_mdsc_do_request(mdsc, NULL, req);
ceph_mdsc_put_request(req);
- dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);
+ doutc(cl, "xattr.ver (after): %lld\n", ci->i_xattrs.version);
out:
if (pagelist)
@@ -1135,9 +1175,10 @@ out:
int __ceph_setxattr(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
+ struct ceph_client *cl = ceph_inode_to_client(inode);
struct ceph_vxattr *vxattr;
struct ceph_inode_info *ci = ceph_inode(inode);
- struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
+ struct ceph_mds_client *mdsc = ceph_sb_to_fs_client(inode->i_sb)->mdsc;
struct ceph_cap_flush *prealloc_cf = NULL;
struct ceph_buffer *old_blob = NULL;
int issued;
@@ -1193,9 +1234,9 @@ retry:
required_blob_size = __get_required_blob_size(ci, name_len, val_len);
if ((ci->i_xattrs.version == 0) || !(issued & CEPH_CAP_XATTR_EXCL) ||
(required_blob_size > mdsc->mdsmap->m_max_xattr_size)) {
- dout("%s do sync setxattr: version: %llu size: %d max: %llu\n",
- __func__, ci->i_xattrs.version, required_blob_size,
- mdsc->mdsmap->m_max_xattr_size);
+ doutc(cl, "sync version: %llu size: %d max: %llu\n",
+ ci->i_xattrs.version, required_blob_size,
+ mdsc->mdsmap->m_max_xattr_size);
goto do_sync;
}
@@ -1209,8 +1250,8 @@ retry:
}
}
- dout("setxattr %p name '%s' issued %s\n", inode, name,
- ceph_cap_string(issued));
+ doutc(cl, "%p %llx.%llx name '%s' issued %s\n", inode,
+ ceph_vinop(inode), name, ceph_cap_string(issued));
__build_xattrs(inode);
if (!ci->i_xattrs.prealloc_blob ||
@@ -1219,7 +1260,8 @@ retry:
spin_unlock(&ci->i_ceph_lock);
ceph_buffer_put(old_blob); /* Shouldn't be required */
- dout(" pre-allocating new blob size=%d\n", required_blob_size);
+ doutc(cl, " pre-allocating new blob size=%d\n",
+ required_blob_size);
blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
if (!blob)
goto do_sync_unlocked;
@@ -1238,7 +1280,7 @@ retry:
dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,
&prealloc_cf);
ci->i_xattrs.dirty = true;
- inode->i_ctime = current_time(inode);
+ inode_set_ctime_current(inode);
}
spin_unlock(&ci->i_ceph_lock);
@@ -1258,8 +1300,9 @@ do_sync_unlocked:
/* security module set xattr while filling trace */
if (current->journal_info) {
- pr_warn_ratelimited("sync setxattr %p "
- "during filling trace\n", inode);
+ pr_warn_ratelimited_client(cl,
+ "sync %p %llx.%llx during filling trace\n",
+ inode, ceph_vinop(inode));
err = -EBUSY;
} else {
err = ceph_sync_setxattr(inode, name, value, size, flags);
@@ -1338,8 +1381,7 @@ int ceph_security_init_secctx(struct dentry *dentry, umode_t mode,
int err;
err = security_dentry_init_security(dentry, mode, &dentry->d_name,
- &name, &as_ctx->sec_ctx,
- &as_ctx->sec_ctxlen);
+ &name, &as_ctx->lsmctx);
if (err < 0) {
WARN_ON_ONCE(err != -EOPNOTSUPP);
err = 0; /* do nothing */
@@ -1364,7 +1406,7 @@ int ceph_security_init_secctx(struct dentry *dentry, umode_t mode,
*/
name_len = strlen(name);
err = ceph_pagelist_reserve(pagelist,
- 4 * 2 + name_len + as_ctx->sec_ctxlen);
+ 4 * 2 + name_len + as_ctx->lsmctx.len);
if (err)
goto out;
@@ -1387,8 +1429,9 @@ int ceph_security_init_secctx(struct dentry *dentry, umode_t mode,
ceph_pagelist_encode_32(pagelist, name_len);
ceph_pagelist_append(pagelist, name, name_len);
- ceph_pagelist_encode_32(pagelist, as_ctx->sec_ctxlen);
- ceph_pagelist_append(pagelist, as_ctx->sec_ctx, as_ctx->sec_ctxlen);
+ ceph_pagelist_encode_32(pagelist, as_ctx->lsmctx.len);
+ ceph_pagelist_append(pagelist, as_ctx->lsmctx.context,
+ as_ctx->lsmctx.len);
err = 0;
out:
@@ -1406,7 +1449,10 @@ void ceph_release_acl_sec_ctx(struct ceph_acl_sec_ctx *as_ctx)
posix_acl_release(as_ctx->default_acl);
#endif
#ifdef CONFIG_CEPH_FS_SECURITY_LABEL
- security_release_secctx(as_ctx->sec_ctx, as_ctx->sec_ctxlen);
+ security_release_secctx(&as_ctx->lsmctx);
+#endif
+#ifdef CONFIG_FS_ENCRYPTION
+ kfree(as_ctx->fscrypt_auth);
#endif
if (as_ctx->pagelist)
ceph_pagelist_release(as_ctx->pagelist);
@@ -1416,7 +1462,7 @@ void ceph_release_acl_sec_ctx(struct ceph_acl_sec_ctx *as_ctx)
* List of handlers for synthetic system.* attributes. Other
* attributes are handled directly.
*/
-const struct xattr_handler *ceph_xattr_handlers[] = {
+const struct xattr_handler * const ceph_xattr_handlers[] = {
&ceph_other_xattr_handler,
NULL,
};
generated by cgit (git 2.34.1) at 2025-12-25 11:55:43 +0000