From c8efcc786146a951091588e5fa7e3c754850cb3c Mon Sep 17 00:00:00 2001 From: Namjae Jeon Date: Tue, 12 Mar 2024 14:05:57 +0900 Subject: ksmbd: add support for durable handles v1/v2 Durable file handles allow reopening a file preserved on a short network outage and transparent client reconnection within a timeout. i.e. Durable handles aren't necessarily cleaned up when the opening process terminates. This patch add support for durable handle version 1 and 2. To prove durable handles work on ksmbd, I have tested this patch with the following smbtorture tests: smb2.durable-open.open-oplock smb2.durable-open.open-lease smb2.durable-open.reopen1 smb2.durable-open.reopen1a smb2.durable-open.reopen1a-lease smb2.durable-open.reopen2 smb2.durable-open.reopen2a smb2.durable-open.reopen2-lease smb2.durable-open.reopen2-lease-v2 smb2.durable-open.reopen3 smb2.durable-open.reopen4 smb2.durable-open.delete_on_close2 smb2.durable-open.file-position smb2.durable-open.lease smb2.durable-open.alloc-size smb2.durable-open.read-only smb2.durable-v2-open.create-blob smb2.durable-v2-open.open-oplock smb2.durable-v2-open.open-lease smb2.durable-v2-open.reopen1 smb2.durable-v2-open.reopen1a smb2.durable-v2-open.reopen1a-lease smb2.durable-v2-open.reopen2 smb2.durable-v2-open.reopen2b Signed-off-by: Namjae Jeon Signed-off-by: Steve French --- fs/smb/server/vfs_cache.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'fs/smb/server/vfs_cache.h') diff --git a/fs/smb/server/vfs_cache.h b/fs/smb/server/vfs_cache.h index a528f0cc775a..ed44fb4e18e7 100644 --- a/fs/smb/server/vfs_cache.h +++ b/fs/smb/server/vfs_cache.h @@ -14,6 +14,7 @@ #include #include "vfs.h" +#include "mgmt/share_config.h" /* Windows style file permissions for extended response */ #define FILE_GENERIC_ALL 0x1F01FF @@ -106,6 +107,9 @@ struct ksmbd_file { int dot_dotdot[2]; unsigned int f_state; bool reserve_lease_break; + bool is_durable; + bool is_persistent; + bool is_resilient; }; static inline void set_ctx_actor(struct dir_context *ctx, @@ -141,7 +145,9 @@ struct ksmbd_file *ksmbd_lookup_fd_slow(struct ksmbd_work *work, u64 id, void ksmbd_fd_put(struct ksmbd_work *work, struct ksmbd_file *fp); struct ksmbd_inode *ksmbd_inode_lookup_lock(struct dentry *d); void ksmbd_inode_put(struct ksmbd_inode *ci); +struct ksmbd_file *ksmbd_lookup_global_fd(unsigned long long id); struct ksmbd_file *ksmbd_lookup_durable_fd(unsigned long long id); +void ksmbd_put_durable_fd(struct ksmbd_file *fp); struct ksmbd_file *ksmbd_lookup_fd_cguid(char *cguid); struct ksmbd_file *ksmbd_lookup_fd_inode(struct dentry *dentry); unsigned int ksmbd_open_durable_fd(struct ksmbd_file *fp); @@ -173,6 +179,9 @@ void ksmbd_set_inode_pending_delete(struct ksmbd_file *fp); void ksmbd_clear_inode_pending_delete(struct ksmbd_file *fp); void ksmbd_fd_set_delete_on_close(struct ksmbd_file *fp, int file_info); +int ksmbd_reopen_durable_fd(struct ksmbd_work *work, struct ksmbd_file *fp); +int ksmbd_validate_name_reconnect(struct ksmbd_share_config *share, + struct ksmbd_file *fp, char *name); int ksmbd_init_file_cache(void); void ksmbd_exit_file_cache(void); #endif /* __VFS_CACHE_H__ */ -- cgit v1.2.3