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b38f99c121
This patch introduces a /proc filesystem interface to ksmbd, providing visibility into the internal state of the SMB server. This allows administrators and developers to monitor active connections, user sessions, and opened files in real-time without relying on external tools or heavy debugging. Key changes include: - Connection Monitoring (/proc/fs/ksmbd/clients): Displays a list of active network connections, including client IP addresses, SMB dialects, credits, and last active timestamps. - Session Management (/proc/fs/ksmbd/sessions/): Adds a global sessions file to list all authenticated users and their session IDs. - Creates individual session entries (e.g., /proc/fs/ksmbd/sessions/<id>) detailing capabilities (DFS, Multi-channel, etc.), signing/encryption algorithms, and connected tree shares. - File Tracking (/proc/fs/ksmbd/files): Shows all currently opened files across the server, including tree IDs, process IDs (PID), access modes (daccess/saccess), and oplock/lease states. - Statistics & Counters: Implements internal counters for global server metrics, such as the number of tree connections, total sessions, and processed read/write bytes. Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Bahubali B Gumaji <bahubali.bg@samsung.com> Signed-off-by: Sang-Soo Lee <constant.lee@samsung.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2018 Samsung Electronics Co., Ltd.
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*/
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#ifndef __KSMBD_MISC_H__
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#define __KSMBD_MISC_H__
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#ifdef CONFIG_PROC_FS
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#include <linux/proc_fs.h>
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#endif
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struct ksmbd_share_config;
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struct nls_table;
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struct kstat;
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struct ksmbd_file;
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int match_pattern(const char *str, size_t len, const char *pattern);
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int ksmbd_validate_filename(char *filename);
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int parse_stream_name(char *filename, char **stream_name, int *s_type);
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char *convert_to_nt_pathname(struct ksmbd_share_config *share,
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const struct path *path);
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int get_nlink(struct kstat *st);
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void ksmbd_conv_path_to_unix(char *path);
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void ksmbd_strip_last_slash(char *path);
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void ksmbd_conv_path_to_windows(char *path);
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char *ksmbd_casefold_sharename(struct unicode_map *um, const char *name);
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char *ksmbd_extract_sharename(struct unicode_map *um, const char *treename);
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char *convert_to_unix_name(struct ksmbd_share_config *share, const char *name);
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#define KSMBD_DIR_INFO_ALIGNMENT 8
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struct ksmbd_dir_info;
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char *ksmbd_convert_dir_info_name(struct ksmbd_dir_info *d_info,
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const struct nls_table *local_nls,
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int *conv_len);
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#define NTFS_TIME_OFFSET ((u64)(369 * 365 + 89) * 24 * 3600 * 10000000)
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struct timespec64 ksmbd_NTtimeToUnix(__le64 ntutc);
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u64 ksmbd_UnixTimeToNT(struct timespec64 t);
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long long ksmbd_systime(void);
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#ifdef CONFIG_PROC_FS
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struct ksmbd_const_name {
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unsigned int const_value;
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const char *name;
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};
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void ksmbd_proc_init(void);
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void ksmbd_proc_cleanup(void);
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void ksmbd_proc_reset(void);
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struct proc_dir_entry *ksmbd_proc_create(const char *name,
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int (*show)(struct seq_file *m, void *v),
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void *v);
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void ksmbd_proc_show_flag_names(struct seq_file *m,
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const struct ksmbd_const_name *table,
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int count,
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unsigned int flags);
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void ksmbd_proc_show_const_name(struct seq_file *m,
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const char *format,
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const struct ksmbd_const_name *table,
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int count,
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unsigned int const_value);
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#else
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static inline void ksmbd_proc_init(void) {}
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static inline void ksmbd_proc_cleanup(void) {}
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static inline void ksmbd_proc_reset(void) {}
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#endif
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#endif /* __KSMBD_MISC_H__ */
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