Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 : Samba utility functions
4 : Copyright (C) Andrew Bartlett 2011
5 : Copyright (C) Andrew Tridgell 1992-2002
6 :
7 : This program is free software; you can redistribute it and/or modify
8 : it under the terms of the GNU General Public License as published by
9 : the Free Software Foundation; either version 3 of the License, or
10 : (at your option) any later version.
11 :
12 : This program is distributed in the hope that it will be useful,
13 : but WITHOUT ANY WARRANTY; without even the implied warranty of
14 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 : GNU General Public License for more details.
16 :
17 : You should have received a copy of the GNU General Public License
18 : along with this program. If not, see <http://www.gnu.org/licenses/>.
19 : */
20 :
21 : #include "includes.h"
22 : #include "lib/util/server_id.h"
23 : #include "librpc/gen_ndr/messaging.h"
24 : #include "messages.h"
25 : #include "lib/util/memory.h"
26 :
27 : /* This is the Samba3-specific implementation of reopen_logs(), which
28 : * calls out to the s3 loadparm code, and means that we don't depend
29 : * on loadparm directly. */
30 :
31 136046 : bool reopen_logs(void)
32 : {
33 136046 : if (lp_loaded()) {
34 952322 : struct debug_settings settings = {
35 136046 : .max_log_size = lp_max_log_size(),
36 136046 : .timestamp_logs = lp_timestamp_logs(),
37 136046 : .debug_prefix_timestamp = lp_debug_prefix_timestamp(),
38 136046 : .debug_hires_timestamp = lp_debug_hires_timestamp(),
39 136046 : .debug_pid = lp_debug_pid(),
40 136046 : .debug_uid = lp_debug_uid(),
41 136046 : .debug_class = lp_debug_class(),
42 : };
43 119302 : const struct loadparm_substitution *lp_sub =
44 16744 : loadparm_s3_global_substitution();
45 :
46 136046 : debug_set_logfile(lp_logfile(talloc_tos(), lp_sub));
47 136046 : debug_parse_levels(lp_log_level(talloc_tos(), lp_sub));
48 272092 : debug_set_settings(&settings,
49 136046 : lp_logging(talloc_tos(), lp_sub),
50 : lp_syslog(),
51 136046 : lp_syslog_only());
52 : } else {
53 : /*
54 : * Parameters are not yet loaded - configure debugging with
55 : * reasonable defaults to enable logging for early
56 : * startup failures.
57 : */
58 0 : struct debug_settings settings = {
59 : .max_log_size = 5000,
60 : .timestamp_logs = true,
61 : .debug_prefix_timestamp = false,
62 : .debug_hires_timestamp = true,
63 : .debug_pid = false,
64 : .debug_uid = false,
65 : .debug_class = false,
66 : };
67 0 : debug_set_settings(&settings,
68 : "file",
69 : 1,
70 : false);
71 : }
72 136046 : return reopen_logs_internal();
73 : }
74 :
75 : /****************************************************************************
76 : Receive a "set debug level" message.
77 : ****************************************************************************/
78 :
79 0 : void debug_message(struct messaging_context *msg_ctx,
80 : void *private_data,
81 : uint32_t msg_type,
82 : struct server_id src,
83 : DATA_BLOB *data)
84 : {
85 0 : const char *params_str = (const char *)data->data;
86 :
87 : /* Check, it's a proper string! */
88 0 : if (params_str[(data->length)-1] != '\0') {
89 0 : DEBUG(1, ("Invalid debug message from pid %u to pid %u\n",
90 : (unsigned int)procid_to_pid(&src),
91 : (unsigned int)getpid()));
92 0 : return;
93 : }
94 :
95 0 : DEBUG(3, ("INFO: Remote set of debug to `%s' (pid %u from pid %u)\n",
96 : params_str, (unsigned int)getpid(),
97 : (unsigned int)procid_to_pid(&src)));
98 :
99 0 : debug_parse_levels(params_str);
100 : }
101 :
102 : /****************************************************************************
103 : Return current debug level.
104 : ****************************************************************************/
105 :
106 0 : static void debuglevel_message(struct messaging_context *msg_ctx,
107 : void *private_data,
108 : uint32_t msg_type,
109 : struct server_id src,
110 : DATA_BLOB *data)
111 : {
112 0 : char *message = debug_list_class_names_and_levels();
113 : struct server_id_buf tmp;
114 :
115 0 : if (!message) {
116 0 : DEBUG(0,("debuglevel_message - debug_list_class_names_and_levels returned NULL\n"));
117 0 : return;
118 : }
119 :
120 0 : DEBUG(1, ("INFO: Received REQ_DEBUGLEVEL message from PID %s\n",
121 : server_id_str_buf(src, &tmp)));
122 0 : messaging_send_buf(msg_ctx, src, MSG_DEBUGLEVEL,
123 0 : (uint8_t *)message, strlen(message) + 1);
124 :
125 0 : TALLOC_FREE(message);
126 : }
127 :
128 0 : static void debug_ringbuf_log(struct messaging_context *msg_ctx,
129 : void *private_data,
130 : uint32_t msg_type,
131 : struct server_id src,
132 : DATA_BLOB *data)
133 : {
134 0 : char *log = debug_get_ringbuf();
135 0 : size_t logsize = debug_get_ringbuf_size();
136 :
137 0 : if (log == NULL) {
138 0 : log = discard_const_p(char, "*disabled*\n");
139 0 : logsize = strlen(log) + 1;
140 : }
141 :
142 0 : messaging_send_buf(msg_ctx, src, MSG_RINGBUF_LOG, (uint8_t *)log,
143 : logsize);
144 0 : }
145 :
146 4394 : void debug_register_msgs(struct messaging_context *msg_ctx)
147 : {
148 4394 : messaging_register(msg_ctx, NULL, MSG_DEBUG, debug_message);
149 4394 : messaging_register(msg_ctx, NULL, MSG_REQ_DEBUGLEVEL,
150 : debuglevel_message);
151 4394 : messaging_register(msg_ctx, NULL, MSG_REQ_RINGBUF_LOG,
152 : debug_ringbuf_log);
153 4394 : }
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