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Diffstat (limited to 'fs/smb/client/cifs_debug.h')
| -rw-r--r-- | fs/smb/client/cifs_debug.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/fs/smb/client/cifs_debug.h b/fs/smb/client/cifs_debug.h new file mode 100644 index 0000000000..ce5cfd236f --- /dev/null +++ b/fs/smb/client/cifs_debug.h @@ -0,0 +1,160 @@ +/* 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_detail(void *buf, struct TCP_Server_Info *ptcp_info); +void cifs_dump_mids(struct TCP_Server_Info *); +extern bool traceSMB; /* flag which enables the function below */ +void dump_smb(void *, int); +#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 */ |