Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 *
4 * Copyright (c) International Business Machines Corp., 2000,2002
5 * Modified by Steve French (sfrench@us.ibm.com)
6*/
7
8#ifndef _H_CIFS_DEBUG
9#define _H_CIFS_DEBUG
10
11void cifs_dump_mem(char *label, void *data, int length);
12void cifs_dump_detail(void *buf, struct TCP_Server_Info *ptcp_info);
13void cifs_dump_mids(struct TCP_Server_Info *);
14extern bool traceSMB; /* flag which enables the function below */
15void dump_smb(void *, int);
16#define CIFS_INFO 0x01
17#define CIFS_RC 0x02
18#define CIFS_TIMER 0x04
19
20#define VFS 1
21#define FYI 2
22extern int cifsFYI;
23#ifdef CONFIG_CIFS_DEBUG2
24#define NOISY 4
25#else
26#define NOISY 0
27#endif
28#define ONCE 8
29
30/*
31 * debug ON
32 * --------
33 */
34#ifdef CONFIG_CIFS_DEBUG
35
36
37/*
38 * When adding tracepoints and debug messages we have various choices.
39 * Some considerations:
40 *
41 * Use cifs_dbg(VFS, ...) for things we always want logged, and the user to see
42 * cifs_info(...) slightly less important, admin can filter via loglevel > 6
43 * cifs_dbg(FYI, ...) minor debugging messages, off by default
44 * trace_smb3_* ftrace functions are preferred for complex debug messages
45 * intended for developers or experienced admins, off by default
46 */
47
48/* Information level messages, minor events */
49#define cifs_info_func(ratefunc, fmt, ...) \
50do { \
51 pr_info_ ## ratefunc("CIFS: " fmt, ##__VA_ARGS__); \
52} while (0)
53
54#define cifs_info(fmt, ...) \
55do { \
56 cifs_info_func(ratelimited, fmt, ##__VA_ARGS__); \
57} while (0)
58
59/* information message: e.g., configuration, major event */
60#define cifs_dbg_func(ratefunc, type, fmt, ...) \
61do { \
62 if ((type) & FYI && cifsFYI & CIFS_INFO) { \
63 pr_debug_ ## ratefunc("%s: " \
64 fmt, __FILE__, ##__VA_ARGS__); \
65 } else if ((type) & VFS) { \
66 pr_err_ ## ratefunc("CIFS VFS: " \
67 fmt, ##__VA_ARGS__); \
68 } else if ((type) & NOISY && (NOISY != 0)) { \
69 pr_debug_ ## ratefunc(fmt, ##__VA_ARGS__); \
70 } \
71} while (0)
72
73#define cifs_dbg(type, fmt, ...) \
74do { \
75 if ((type) & ONCE) \
76 cifs_dbg_func(once, \
77 type, fmt, ##__VA_ARGS__); \
78 else \
79 cifs_dbg_func(ratelimited, \
80 type, fmt, ##__VA_ARGS__); \
81} while (0)
82
83#define cifs_server_dbg_func(ratefunc, type, fmt, ...) \
84do { \
85 const char *sn = ""; \
86 if (server && server->hostname) \
87 sn = server->hostname; \
88 if ((type) & FYI && cifsFYI & CIFS_INFO) { \
89 pr_debug_ ## ratefunc("%s: \\\\%s " fmt, \
90 __FILE__, sn, ##__VA_ARGS__); \
91 } else if ((type) & VFS) { \
92 pr_err_ ## ratefunc("CIFS VFS: \\\\%s " fmt, \
93 sn, ##__VA_ARGS__); \
94 } else if ((type) & NOISY && (NOISY != 0)) { \
95 pr_debug_ ## ratefunc("\\\\%s " fmt, \
96 sn, ##__VA_ARGS__); \
97 } \
98} while (0)
99
100#define cifs_server_dbg(type, fmt, ...) \
101do { \
102 if ((type) & ONCE) \
103 cifs_server_dbg_func(once, \
104 type, fmt, ##__VA_ARGS__); \
105 else \
106 cifs_server_dbg_func(ratelimited, \
107 type, fmt, ##__VA_ARGS__); \
108} while (0)
109
110#define cifs_tcon_dbg_func(ratefunc, type, fmt, ...) \
111do { \
112 const char *tn = ""; \
113 if (tcon && tcon->treeName) \
114 tn = tcon->treeName; \
115 if ((type) & FYI && cifsFYI & CIFS_INFO) { \
116 pr_debug_ ## ratefunc("%s: %s " fmt, \
117 __FILE__, tn, ##__VA_ARGS__); \
118 } else if ((type) & VFS) { \
119 pr_err_ ## ratefunc("CIFS VFS: %s " fmt, \
120 tn, ##__VA_ARGS__); \
121 } else if ((type) & NOISY && (NOISY != 0)) { \
122 pr_debug_ ## ratefunc("%s " fmt, \
123 tn, ##__VA_ARGS__); \
124 } \
125} while (0)
126
127#define cifs_tcon_dbg(type, fmt, ...) \
128do { \
129 if ((type) & ONCE) \
130 cifs_tcon_dbg_func(once, \
131 type, fmt, ##__VA_ARGS__); \
132 else \
133 cifs_tcon_dbg_func(ratelimited, \
134 type, fmt, ##__VA_ARGS__); \
135} while (0)
136
137/*
138 * debug OFF
139 * ---------
140 */
141#else /* _CIFS_DEBUG */
142#define cifs_dbg(type, fmt, ...) \
143do { \
144 if (0) \
145 pr_debug(fmt, ##__VA_ARGS__); \
146} while (0)
147
148#define cifs_server_dbg(type, fmt, ...) \
149do { \
150 if (0) \
151 pr_debug("\\\\%s " fmt, \
152 server->hostname, ##__VA_ARGS__); \
153} while (0)
154
155#define cifs_tcon_dbg(type, fmt, ...) \
156do { \
157 if (0) \
158 pr_debug("%s " fmt, tcon->treeName, ##__VA_ARGS__); \
159} while (0)
160
161#define cifs_info(fmt, ...) \
162do { \
163 pr_info("CIFS: "fmt, ##__VA_ARGS__); \
164} while (0)
165#endif
166
167#endif /* _H_CIFS_DEBUG */