summaryrefslogtreecommitdiff
path: root/mib/parse-compat.inc.c
blob: 8f8fc0d2ad4ea23c9671db28c4d2f5ab005783c7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
/*
 * Copyright (c) 2005, Nate Nielsen
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *     * Redistributions of source code must retain the above
 *       copyright notice, this list of conditions and the
 *       following disclaimer.
 *     * Redistributions in binary form must reproduce the
 *       above copyright notice, this list of conditions and
 *       the following disclaimer in the documentation and/or
 *       other materials provided with the distribution.
 *     * The names of contributors to this software may not be
 *       used to endorse or promote products derived from this
 *       software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 *
 *
 * CONTRIBUTORS
 *  Nate Nielsen <nielsen@memberwebs.com>
 *
 */

/*
 * This file is not compiled on it's own. It's included into parse.c
 * and provides compatibility definitions for making it work without
 * the rest of net-snmp
 */

#include "usuals.h"
#include "rrdbotd.h"

static int with_warnings = 0;
static int initialized = 0;

/* -----------------------------------------------------------------------------
 * DEFINITIONS
 */

#define FALSE 0
#define TRUE 1

/* No need to implement these */
#define DEBUGMSGTL(x)
#define set_function(tp)

/* Just return the tree head */
#define get_tree_head()     \
    (tree_head)

#define snmp_get_do_debugging()     (0)

typedef u_long oid;

#define NETSNMP_DS_LIBRARY_ID           0
#define NETSNMP_DS_LIB_MIB_WARNINGS     1
#define NETSNMP_DS_LIB_MIB_REPLACE      2
#define NETSNMP_DS_LIB_SAVE_MIB_DESCRS  3
#define NETSNMP_DS_LIB_MIB_ERRORS       4
#define NETSNMP_DS_LIB_MIB_PARSE_LABEL  5
#define NETSNMP_DS_LIB_MIB_COMMENT_TERM 6

#define netsnmp_ds_get_boolean(d, v) \
    netsnmp_ds_get_int(d, v)

static int
netsnmp_ds_get_int(int dummy, int var)
{
    switch(var)
    {
    case NETSNMP_DS_LIB_MIB_WARNINGS:
        return with_warnings;
    case NETSNMP_DS_LIB_MIB_REPLACE:
        return 0;
    case NETSNMP_DS_LIB_SAVE_MIB_DESCRS:
        return 0;
    case NETSNMP_DS_LIB_MIB_PARSE_LABEL:
        return 1;
    case NETSNMP_DS_LIB_MIB_COMMENT_TERM:
        return 0;
    default:
        return 0;
    }
}

#define netsnmp_ds_set_int(a, b, c)
#define netsnmp_ds_set_boolean(a, b, c)
#define netsnmp_ds_toggle_boolean(a, b)

static void
snmp_log(int level, const char* msg, ...)
{
    va_list ap;

    if(level >= LOG_WARNING && !with_warnings)
        return;

    va_start(ap, msg);
    rb_vmessage(level, 0, msg, ap);
    va_end(ap);
}

/* Only used to open files */
static void
snmp_log_perror(const char* file)
{
    rb_message(LOG_ERR, "couldn't open file: %s", file);
}

#define SNMP_FREE(s)           do { if (s) { free((void *)s); s=NULL; } } while(0)

/* -----------------------------------------------------------------------------
 * RRDBOT GLUE CODE
 */

static void
clear_tree_flags(struct tree *tp)
{
    for( ; tp; tp = tp->next_peer)
    {
        tp->reported = 0;
        if(tp->child_list)
            clear_tree_flags(tp->child_list);
    }
}

void
rb_mib_init(const char* dir, int warnings)
{
    if(initialized)
        return;

    with_warnings = warnings;

    init_mib_internals();
    add_mibdir(dir);
    read_all_mibs();

    rb_messagex(LOG_DEBUG, "loaded all MIB files");
    initialized = 1;
}

mib_node
rb_mib_lookup(const char* match)
{
    extern struct tree *tree_head;
    struct tree* mib;

    ASSERT(initialized);

    clear_tree_flags(tree_head);
    mib = find_best_tree_node(match, NULL, NULL);
    return (mib_node)mib;
}

int
rb_mib_subid(mib_node n, const char* name)
{
    struct tree *parent = (struct tree*)n;
    struct tree *tp = NULL;

    ASSERT(initialized);

    for(tp = parent->child_list; tp; tp = tp->next_peer)
    {
        if(strcasecmp(name, tp->label) == 0)
            return tp->subid;
    }

    return -1;
}

void
rb_mib_oid(mib_node n, struct asn_oid* oid)
{
    struct tree* mib = (struct tree*)n;
    struct tree *tp = NULL;
    int len;

    ASSERT(mib);

    /* Figure out where to start */
    len = 0;
    for(tp = mib; tp; tp = tp->parent)
        len++;

    oid->len = len;
    for(tp = mib; tp; tp = tp->parent)
        oid->subs[--len] = tp->subid;
}

mib_node
rb_mib_node(struct asn_oid* oid)
{
    extern struct tree *tree_head;
    struct tree *tp = NULL;
    asn_subid_t subid;
    int i;

    ASSERT(initialized);

    for(i = 0, tp = tree_head; tp && i < oid->len;
        i++, tp = tp ? tp->child_list : NULL)
    {
        subid = oid->subs[i];

        while(tp && tp->subid != subid)
            tp = tp->next_peer;

        /* Did we find a match? */
        if(tp && i == oid->len - 1)
            break;
    }

    return tp;
}

void
rb_mib_uninit()
{
    if(initialized) {
        unload_all_mibs();
        rb_messagex(LOG_DEBUG, "unloaded all MIB files");
    }
    initialized = 0;
}