2 * $Id: snmp_agent.cc,v 1.97 2007/12/14 23:11:48 amosjeffries Exp $
4 * DEBUG: section 49 SNMP Interface
5 * AUTHOR: Kostas Anagnostakis
7 * SQUID Web Proxy Cache http://www.squid-cache.org/
8 * ----------------------------------------------------------
10 * Squid is the result of efforts by numerous individuals from
11 * the Internet community; see the CONTRIBUTORS file for full
12 * details. Many organizations have provided support for Squid's
13 * development; see the SPONSORS file for full details. Squid is
14 * Copyrighted (C) 2001 by the Regents of the University of
15 * California; see the COPYRIGHT file for full details. Squid
16 * incorporates software developed and/or copyrighted by other
17 * sources; see the CREDITS file for full details.
19 * This program is free software; you can redistribute it and/or modify
20 * it under the terms of the GNU General Public License as published by
21 * the Free Software Foundation; either version 2 of the License, or
22 * (at your option) any later version.
24 * This program is distributed in the hope that it will be useful,
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 * GNU General Public License for more details.
29 * You should have received a copy of the GNU General Public License
30 * along with this program; if not, write to the Free Software
31 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
36 #include "cache_snmp.h"
39 #include "SquidTime.h"
41 /************************************************************************
43 SQUID MIB Implementation
45 ************************************************************************/
52 snmp_sysFn(variable_list
* Var
, snint
* ErrP
)
54 variable_list
*Answer
= NULL
;
55 debugs(49, 5, "snmp_sysFn: Processing request:");
56 snmpDebugOid(5, Var
->name
, Var
->name_length
);
57 *ErrP
= SNMP_ERR_NOERROR
;
59 switch (Var
->name
[LEN_SQ_SYS
]) {
62 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
63 mem_node::store_mem_size
>> 10,
68 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
74 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
75 (int)(tvSubDsec(squid_start
, current_time
) * 100),
80 *ErrP
= SNMP_ERR_NOSUCHNAME
;
91 snmp_confFn(variable_list
* Var
, snint
* ErrP
)
93 variable_list
*Answer
= NULL
;
94 const char *cp
= NULL
;
95 debugs(49, 5, "snmp_confFn: Processing request with magic " << Var
->name
[8] << "!");
96 *ErrP
= SNMP_ERR_NOERROR
;
98 switch (Var
->name
[LEN_SQ_CONF
]) {
101 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
102 Answer
->type
= ASN_OCTET_STR
;
103 Answer
->val_len
= strlen(Config
.adminEmail
);
104 Answer
->val
.string
= (u_char
*) xstrdup(Config
.adminEmail
);
108 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
109 Answer
->type
= ASN_OCTET_STR
;
110 Answer
->val_len
= strlen(appname
);
111 Answer
->val
.string
= (u_char
*) xstrdup(appname
);
114 case CONF_VERSION_ID
:
115 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
116 Answer
->type
= ASN_OCTET_STR
;
117 Answer
->val_len
= strlen(VERSION
);
118 Answer
->val
.string
= (u_char
*) xstrdup(VERSION
);
123 switch (Var
->name
[LEN_SQ_CONF
+ 1]) {
126 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
127 (snint
) Config
.memMaxSize
>> 20,
131 case CONF_ST_SWMAXSZ
:
132 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
133 (snint
) Store::Root().maxSize() >> 10,
138 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
139 (snint
) Config
.Swap
.highWaterMark
,
144 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
145 (snint
) Config
.Swap
.lowWaterMark
,
150 *ErrP
= SNMP_ERR_NOSUCHNAME
;
157 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
159 if (!(cp
= Config
.debugOptions
))
162 Answer
->type
= ASN_OCTET_STR
;
164 Answer
->val_len
= strlen(cp
);
166 Answer
->val
.string
= (u_char
*) xstrdup(cp
);
171 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
173 cp
= uniqueHostname();
175 Answer
->type
= ASN_OCTET_STR
;
177 Answer
->val_len
= strlen(cp
);
179 Answer
->val
.string
= (u_char
*) xstrdup(cp
);
184 *ErrP
= SNMP_ERR_NOSUCHNAME
;
198 snmp_meshPtblFn(variable_list
* Var
, snint
* ErrP
)
200 variable_list
*Answer
= NULL
;
206 debugs(49, 5, "snmp_meshPtblFn: peer " << Var
->name
[LEN_SQ_MESH
+ 3] << " requested!");
207 *ErrP
= SNMP_ERR_NOERROR
;
209 u_int index
= Var
->name
[LEN_SQ_MESH
+ 3] ;
210 for (p
= Config
.peers
; p
!= NULL
; p
= p
->next
, cnt
++)
212 if (p
->index
== index
)
220 *ErrP
= SNMP_ERR_NOSUCHNAME
;
225 switch (Var
->name
[LEN_SQ_MESH
+ 2]) {
226 case MESH_PTBL_INDEX
: // FIXME INET6: Should be visible?
228 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
229 (snint
)p
->index
, SMI_INTEGER
);
236 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
237 Answer
->type
= ASN_OCTET_STR
;
238 Answer
->val_len
= strlen(cp
);
239 Answer
->val
.string
= (u_char
*) xstrdup(cp
);
243 case MESH_PTBL_ADDR_TYPE
:
246 ival
= laddr
.IsIPv4() ? INETADDRESSTYPE_IPV4
: INETADDRESSTYPE_IPV6
;
247 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
253 Answer
= snmp_var_new(Var
->name
, Var
->name_length
);
254 // InetAddress doesn't have its own ASN.1 type,
255 // like IpAddr does (SMI_IPADDRESS)
257 Answer
->type
= ASN_OCTET_STR
;
258 char host
[MAX_IPSTRLEN
];
259 laddr
.NtoA(host
,MAX_IPSTRLEN
);
260 Answer
->val_len
= strlen(host
);
261 Answer
->val
.string
= (u_char
*) xstrdup(host
);
266 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
267 (snint
) p
->http_port
,
272 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
278 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
283 case MESH_PTBL_STATE
:
284 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
285 (snint
) neighborUp(p
),
290 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
295 case MESH_PTBL_PACKED
:
296 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
297 p
->stats
.pings_acked
,
301 case MESH_PTBL_FETCHES
:
302 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
308 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
314 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
315 p
->stats
.ignored_replies
,
319 case MESH_PTBL_KEEPAL_S
:
320 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
321 p
->stats
.n_keepalives_sent
,
325 case MESH_PTBL_KEEPAL_R
:
326 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
327 p
->stats
.n_keepalives_recv
,
332 *ErrP
= SNMP_ERR_NOSUCHNAME
;
340 snmp_prfSysFn(variable_list
* Var
, snint
* ErrP
)
342 variable_list
*Answer
= NULL
;
344 static struct rusage rusage
;
345 debugs(49, 5, "snmp_prfSysFn: Processing request with magic " << Var
->name
[LEN_SQ_PRF
+ 1] << "!");
346 *ErrP
= SNMP_ERR_NOERROR
;
348 switch (Var
->name
[LEN_SQ_PRF
+ 1]) {
351 squid_getrusage(&rusage
);
352 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
353 rusage_pagefaults(&rusage
),
358 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
363 case PERF_SYS_MEMUSAGE
:
364 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
365 (snint
) statMemoryAccounted() >> 10,
369 case PERF_SYS_CPUTIME
:
370 squid_getrusage(&rusage
);
371 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
372 (snint
) rusage_cputime(&rusage
),
376 case PERF_SYS_CPUUSAGE
:
377 squid_getrusage(&rusage
);
378 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
379 (snint
) dpercent(rusage_cputime(&rusage
), tvSubDsec(squid_start
, current_time
)),
383 case PERF_SYS_MAXRESSZ
:
384 squid_getrusage(&rusage
);
385 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
386 (snint
) rusage_maxrss(&rusage
),
390 case PERF_SYS_CURLRUEXP
:
391 /* No global LRU info anymore */
392 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
397 case PERF_SYS_CURUNLREQ
:
398 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
399 (snint
) statCounter
.unlink
.requests
,
403 case PERF_SYS_CURUNUSED_FD
:
404 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
405 (snint
) Squid_MaxFD
- Number_FD
,
409 case PERF_SYS_CURRESERVED_FD
:
410 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
415 case PERF_SYS_CURUSED_FD
:
416 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
421 case PERF_SYS_CURMAX_FD
:
422 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
427 case PERF_SYS_NUMOBJCNT
:
428 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
429 (snint
) StoreEntry::inUseCount(),
434 *ErrP
= SNMP_ERR_NOSUCHNAME
;
442 snmp_prfProtoFn(variable_list
* Var
, snint
* ErrP
)
444 variable_list
*Answer
= NULL
;
445 static StatCounters
*f
= NULL
;
446 static StatCounters
*l
= NULL
;
449 debugs(49, 5, "snmp_prfProtoFn: Processing request with magic " << Var
->name
[LEN_SQ_PRF
] << "!");
450 *ErrP
= SNMP_ERR_NOERROR
;
452 switch (Var
->name
[LEN_SQ_PRF
+ 1]) {
454 case PERF_PROTOSTAT_AGGR
: /* cacheProtoAggregateStats */
456 switch (Var
->name
[LEN_SQ_PRF
+ 2]) {
458 case PERF_PROTOSTAT_AGGR_HTTP_REQ
:
459 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
460 (snint
) statCounter
.client_http
.requests
,
464 case PERF_PROTOSTAT_AGGR_HTTP_HITS
:
465 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
466 (snint
) statCounter
.client_http
.hits
,
470 case PERF_PROTOSTAT_AGGR_HTTP_ERRORS
:
471 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
472 (snint
) statCounter
.client_http
.errors
,
476 case PERF_PROTOSTAT_AGGR_HTTP_KBYTES_IN
:
477 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
478 (snint
) statCounter
.client_http
.kbytes_in
.kb
,
482 case PERF_PROTOSTAT_AGGR_HTTP_KBYTES_OUT
:
483 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
484 (snint
) statCounter
.client_http
.kbytes_out
.kb
,
488 case PERF_PROTOSTAT_AGGR_ICP_S
:
489 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
490 (snint
) statCounter
.icp
.pkts_sent
,
494 case PERF_PROTOSTAT_AGGR_ICP_R
:
495 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
496 (snint
) statCounter
.icp
.pkts_recv
,
500 case PERF_PROTOSTAT_AGGR_ICP_SKB
:
501 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
502 (snint
) statCounter
.icp
.kbytes_sent
.kb
,
506 case PERF_PROTOSTAT_AGGR_ICP_RKB
:
507 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
508 (snint
) statCounter
.icp
.kbytes_recv
.kb
,
512 case PERF_PROTOSTAT_AGGR_REQ
:
513 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
514 (snint
) statCounter
.server
.all
.requests
,
518 case PERF_PROTOSTAT_AGGR_ERRORS
:
519 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
520 (snint
) statCounter
.server
.all
.errors
,
524 case PERF_PROTOSTAT_AGGR_KBYTES_IN
:
525 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
526 (snint
) statCounter
.server
.all
.kbytes_in
.kb
,
530 case PERF_PROTOSTAT_AGGR_KBYTES_OUT
:
531 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
532 (snint
) statCounter
.server
.all
.kbytes_out
.kb
,
536 case PERF_PROTOSTAT_AGGR_CURSWAP
:
537 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
538 (snint
) store_swap_size
,
542 case PERF_PROTOSTAT_AGGR_CLIENTS
:
543 Answer
= snmp_var_new_integer(Var
->name
, Var
->name_length
,
544 (snint
) statCounter
.client_http
.clients
,
549 *ErrP
= SNMP_ERR_NOSUCHNAME
;
555 case PERF_PROTOSTAT_MEDIAN
:
557 if (Var
->name_length
== LEN_SQ_PRF
+ 5)
558 minutes
= Var
->name
[LEN_SQ_PRF
+ 4];
562 if ((minutes
< 1) || (minutes
> 60))
567 l
= snmpStatGet(minutes
);
569 debugs(49, 8, "median: min= " << minutes
<< ", " << Var
->name
[LEN_SQ_PRF
+ 3] << " l= " << l
<< " , f = " << f
);
570 debugs(49, 8, "median: l= " << l
<< " , f = " << f
);
572 switch (Var
->name
[LEN_SQ_PRF
+ 3]) {
574 case PERF_MEDIAN_TIME
:
578 case PERF_MEDIAN_HTTP_ALL
:
579 x
= statHistDeltaMedian(&l
->client_http
.all_svc_time
,
580 &f
->client_http
.all_svc_time
);
583 case PERF_MEDIAN_HTTP_MISS
:
584 x
= statHistDeltaMedian(&l
->client_http
.miss_svc_time
,
585 &f
->client_http
.miss_svc_time
);
588 case PERF_MEDIAN_HTTP_NM
:
589 x
= statHistDeltaMedian(&l
->client_http
.nm_svc_time
,
590 &f
->client_http
.nm_svc_time
);
593 case PERF_MEDIAN_HTTP_HIT
:
594 x
= statHistDeltaMedian(&l
->client_http
.hit_svc_time
,
595 &f
->client_http
.hit_svc_time
);
598 case PERF_MEDIAN_ICP_QUERY
:
599 x
= statHistDeltaMedian(&l
->icp
.query_svc_time
, &f
->icp
.query_svc_time
);
602 case PERF_MEDIAN_ICP_REPLY
:
603 x
= statHistDeltaMedian(&l
->icp
.reply_svc_time
, &f
->icp
.reply_svc_time
);
606 case PERF_MEDIAN_DNS
:
607 x
= statHistDeltaMedian(&l
->dns
.svc_time
, &f
->dns
.svc_time
);
610 case PERF_MEDIAN_RHR
:
611 x
= statRequestHitRatio(minutes
);
614 case PERF_MEDIAN_BHR
:
615 x
= statByteHitRatio(minutes
);
618 case PERF_MEDIAN_HTTP_NH
:
619 x
= statHistDeltaMedian(&l
->client_http
.nh_svc_time
,
620 &f
->client_http
.nh_svc_time
);
624 *ErrP
= SNMP_ERR_NOSUCHNAME
;
628 return snmp_var_new_integer(Var
->name
, Var
->name_length
,
633 *ErrP
= SNMP_ERR_NOSUCHNAME
;