/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *
 *   Copyright (c) International Business Machines  Corp., 2000,2002
 *   Modified by Steve French (sfrench@us.ibm.com)
 */

#ifndef _H_CIFS_DEBUG
#define _H_CIFS_DEBUG

#ifdef pr_fmt
#undef pr_fmt
#endif

#define pr_fmt(fmt) "CIFS: " fmt

void cifs_dump_mem(char *label, void *data, int length);
void cifs_dump_mids(struct TCP_Server_Info *server);
extern bool traceSMB;           /* flag which enables the function below */
void dump_smb(void *buf, int smb_buf_length);
#define CIFS_INFO       0x01
#define CIFS_RC         0x02
#define CIFS_TIMER      0x04

#define VFS 1
#define FYI 2
extern int cifsFYI;
#ifdef CONFIG_CIFS_DEBUG2
#define NOISY 4
#else
#define NOISY 0
#endif
#define ONCE 8

/*
 *      debug ON
 *      --------
 */
#ifdef CONFIG_CIFS_DEBUG


/*
 * When adding tracepoints and debug messages we have various choices.
 * Some considerations:
 *
 * Use cifs_dbg(VFS, ...) for things we always want logged, and the user to see
 *     cifs_info(...) slightly less important, admin can filter via loglevel > 6
 *     cifs_dbg(FYI, ...) minor debugging messages, off by default
 *     trace_smb3_*  ftrace functions are preferred for complex debug messages
 *                 intended for developers or experienced admins, off by default
 */

/* Information level messages, minor events */
#define cifs_info_func(ratefunc, fmt, ...)                              \
        pr_info_ ## ratefunc(fmt, ##__VA_ARGS__)

#define cifs_info(fmt, ...)                                             \
        cifs_info_func(ratelimited, fmt, ##__VA_ARGS__)

/* information message: e.g., configuration, major event */
#define cifs_dbg_func(ratefunc, type, fmt, ...)                         \
do {                                                                    \
        if ((type) & FYI && cifsFYI & CIFS_INFO) {                      \
                pr_debug_ ## ratefunc("%s: " fmt,                       \
                                      __FILE__, ##__VA_ARGS__);         \
        } else if ((type) & VFS) {                                      \
                pr_err_ ## ratefunc("VFS: " fmt, ##__VA_ARGS__);        \
        } else if ((type) & NOISY && (NOISY != 0)) {                    \
                pr_debug_ ## ratefunc(fmt, ##__VA_ARGS__);              \
        }                                                               \
} while (0)

#define cifs_dbg(type, fmt, ...)                                        \
do {                                                                    \
        if ((type) & ONCE)                                              \
                cifs_dbg_func(once, type, fmt, ##__VA_ARGS__);          \
        else                                                            \
                cifs_dbg_func(ratelimited, type, fmt, ##__VA_ARGS__);   \
} while (0)

#define cifs_server_dbg_func(ratefunc, type, fmt, ...)                  \
do {                                                                    \
        spin_lock(&server->srv_lock);                                   \
        if ((type) & FYI && cifsFYI & CIFS_INFO) {                      \
                pr_debug_ ## ratefunc("%s: \\\\%s " fmt,                \
                                      __FILE__, server->hostname,       \
                                      ##__VA_ARGS__);                   \
        } else if ((type) & VFS) {                                      \
                pr_err_ ## ratefunc("VFS: \\\\%s " fmt,                 \
                                    server->hostname, ##__VA_ARGS__);   \
        } else if ((type) & NOISY && (NOISY != 0)) {                    \
                pr_debug_ ## ratefunc("\\\\%s " fmt,                    \
                                      server->hostname, ##__VA_ARGS__); \
        }                                                               \
        spin_unlock(&server->srv_lock);                                 \
} while (0)

#define cifs_server_dbg(type, fmt, ...)                                 \
do {                                                                    \
        if ((type) & ONCE)                                              \
                cifs_server_dbg_func(once, type, fmt, ##__VA_ARGS__);   \
        else                                                            \
                cifs_server_dbg_func(ratelimited, type, fmt,            \
                                     ##__VA_ARGS__);                    \
} while (0)

#define cifs_tcon_dbg_func(ratefunc, type, fmt, ...)                    \
do {                                                                    \
        const char *tn = "";                                            \
        if (tcon && tcon->tree_name)                                    \
                tn = tcon->tree_name;                                   \
        if ((type) & FYI && cifsFYI & CIFS_INFO) {                      \
                pr_debug_ ## ratefunc("%s: %s " fmt,                    \
                                      __FILE__, tn, ##__VA_ARGS__);     \
        } else if ((type) & VFS) {                                      \
                pr_err_ ## ratefunc("VFS: %s " fmt, tn, ##__VA_ARGS__); \
        } else if ((type) & NOISY && (NOISY != 0)) {                    \
                pr_debug_ ## ratefunc("%s " fmt, tn, ##__VA_ARGS__);    \
        }                                                               \
} while (0)

#define cifs_tcon_dbg(type, fmt, ...)                                   \
do {                                                                    \
        if ((type) & ONCE)                                              \
                cifs_tcon_dbg_func(once, type, fmt, ##__VA_ARGS__);     \
        else                                                            \
                cifs_tcon_dbg_func(ratelimited, type, fmt,              \
                                   ##__VA_ARGS__);                      \
} while (0)

/*
 *      debug OFF
 *      ---------
 */
#else           /* _CIFS_DEBUG */
#define cifs_dbg(type, fmt, ...)                                        \
do {                                                                    \
        if (0)                                                          \
                pr_debug(fmt, ##__VA_ARGS__);                           \
} while (0)

#define cifs_server_dbg(type, fmt, ...)                                 \
do {                                                                    \
        if (0)                                                          \
                pr_debug("\\\\%s " fmt,                                 \
                         server->hostname, ##__VA_ARGS__);              \
} while (0)

#define cifs_tcon_dbg(type, fmt, ...)                                   \
do {                                                                    \
        if (0)                                                          \
                pr_debug("%s " fmt, tcon->tree_name, ##__VA_ARGS__);    \
} while (0)

#define cifs_info(fmt, ...)                                             \
        pr_info(fmt, ##__VA_ARGS__)
#endif

#endif                          /* _H_CIFS_DEBUG */