kernel/linux.git/fs/ksmbd/vfs_cache.c, branch linux-6.0.y

ksmbd: fix racy issue while destroying session on multichannel

2022-08-01T04:14:32+00:00

After multi-channel connection with windows, Several channels of session are connected. Among them, if there is a problem in one channel, Windows connects again after disconnecting the channel. In this process, the session is released and a kernel oop can occurs while processing requests to other channels. When the channel is disconnected, if other channels still exist in the session after deleting the channel from the channel list in the session, the session should not be released. Finally, the session will be released after all channels are disconnected. Signed-off-by: Namjae Jeon Reviewed-by: Hyunchul Lee Signed-off-by: Steve French

ksmbd: increment reference count of parent fp

2022-04-15T01:56:13+00:00

Add missing increment reference count of parent fp in ksmbd_lookup_fd_inode(). Signed-off-by: Namjae Jeon Reviewed-by: Hyunchul Lee Signed-off-by: Steve French

ksmbd: remove filename in ksmbd_file

2022-04-15T01:56:13+00:00

If the filename is change by underlying rename the server, fp->filename and real filename can be different. This patch remove the uses of fp->filename in ksmbd and replace it with d_path(). Signed-off-by: Namjae Jeon Reviewed-by: Hyunchul Lee Signed-off-by: Steve French

ksmbd: remove unused ksmbd_file_table_flush function

2021-09-04T04:29:45+00:00

ksmbd_file_table_flush is a leftover from SMB1. This function is no longer needed as SMB1 has been removed from ksmbd. Reported-by: Dan Carpenter Signed-off-by: Namjae Jeon Signed-off-by: Steve French

ksmbd: free ksmbd_lock when file is closed

2021-07-10T07:23:50+00:00

Append ksmbd_lock into the connection's lock list and the ksmbd_file's lock list. And when a file is closed, detach ksmbd_lock from these lists and free it. Signed-off-by: Hyunchul Lee Signed-off-by: Namjae Jeon Signed-off-by: Steve French

ksmbd: change data type of volatile/persistent id to u64

2021-07-08T23:23:16+00:00

This patch change data type of volatile/persistent id to u64 to make issue from idr_find and idr_remove(). !HAS_FILE_ID check will protect integer overflow issue from idr_find and idr_remove(). Reported-by: Dan Carpenter Signed-off-by: Namjae Jeon Signed-off-by: Steve French

ksmbd: add user namespace support

2021-07-02T07:27:10+00:00

For user namespace support, call vfs functions with struct user_namespace got from struct path. This patch have been tested mannually as below. Create an id-mapped mount using the mount-idmapped utility (https://github.com/brauner/mount-idmapped). $ mount-idmapped --map-mount b:1003:1002:1 /home/foo /foo (the user, "foo" is 1003, and the user "bar" is 1002). And mount the export directory using cifs with the user, "bar". succeed to create/delete/stat/read/write files and directory in the /foo. But fail with a bind mount for /home/foo. Reviewed-by: Christoph Hellwig Signed-off-by: Hyunchul Lee Signed-off-by: Namjae Jeon Signed-off-by: Steve French

ksmbd: opencode to remove FP_INODE macro

2021-06-29T06:07:48+00:00

Opencode to remove FP_INODE macro. Reviewed-by: Christoph Hellwig Signed-off-by: Namjae Jeon Signed-off-by: Steve French

ksmbd: move fs/cifsd to fs/ksmbd

2021-06-28T07:28:31+00:00

Move fs/cifsd to fs/ksmbd and rename the remaining cifsd name to ksmbd. Reviewed-by: Christoph Hellwig Signed-off-by: Namjae Jeon Signed-off-by: Steve French