mirror of
https://github.com/monero-project/monero.git
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2550 lines
68 KiB
C
2550 lines
68 KiB
C
/*
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* daemon/remote.c - remote control for the unbound daemon.
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*
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* Copyright (c) 2008, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This file contains the remote control functionality for the daemon.
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* The remote control can be performed using either the commandline
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* unbound-control tool, or a TLS capable web browser.
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* The channel is secured using TLSv1, and certificates.
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* Both the server and the client(control tool) have their own keys.
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*/
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#include "config.h"
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#ifdef HAVE_OPENSSL_ERR_H
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#include <openssl/err.h>
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#endif
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#ifndef HEADER_DH_H
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#include <openssl/dh.h>
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#endif
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#include <ctype.h>
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#include "daemon/remote.h"
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#include "daemon/worker.h"
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#include "daemon/daemon.h"
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#include "daemon/stats.h"
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#include "daemon/cachedump.h"
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#include "util/log.h"
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#include "util/config_file.h"
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#include "util/net_help.h"
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#include "util/module.h"
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#include "services/listen_dnsport.h"
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#include "services/cache/rrset.h"
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#include "services/cache/infra.h"
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#include "services/mesh.h"
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#include "services/localzone.h"
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#include "util/storage/slabhash.h"
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#include "util/fptr_wlist.h"
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#include "util/data/dname.h"
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#include "validator/validator.h"
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#include "validator/val_kcache.h"
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#include "validator/val_kentry.h"
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#include "validator/val_anchor.h"
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#include "iterator/iterator.h"
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#include "iterator/iter_fwd.h"
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#include "iterator/iter_hints.h"
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#include "iterator/iter_delegpt.h"
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#include "services/outbound_list.h"
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#include "services/outside_network.h"
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#include "sldns/str2wire.h"
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#include "sldns/parseutil.h"
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#include "sldns/wire2str.h"
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#include "sldns/sbuffer.h"
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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/* just for portability */
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#ifdef SQ
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#undef SQ
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#endif
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/** what to put on statistics lines between var and value, ": " or "=" */
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#define SQ "="
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/** if true, inhibits a lot of =0 lines from the stats output */
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static const int inhibit_zero = 1;
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/** subtract timers and the values do not overflow or become negative */
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static void
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timeval_subtract(struct timeval* d, const struct timeval* end,
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const struct timeval* start)
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{
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#ifndef S_SPLINT_S
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time_t end_usec = end->tv_usec;
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d->tv_sec = end->tv_sec - start->tv_sec;
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if(end_usec < start->tv_usec) {
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end_usec += 1000000;
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d->tv_sec--;
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}
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d->tv_usec = end_usec - start->tv_usec;
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#endif
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}
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/** divide sum of timers to get average */
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static void
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timeval_divide(struct timeval* avg, const struct timeval* sum, size_t d)
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{
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#ifndef S_SPLINT_S
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size_t leftover;
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if(d == 0) {
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avg->tv_sec = 0;
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avg->tv_usec = 0;
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return;
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}
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avg->tv_sec = sum->tv_sec / d;
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avg->tv_usec = sum->tv_usec / d;
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/* handle fraction from seconds divide */
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leftover = sum->tv_sec - avg->tv_sec*d;
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avg->tv_usec += (leftover*1000000)/d;
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#endif
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}
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/*
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* The following function was generated using the openssl utility, using
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* the command : "openssl dhparam -dsaparam -C 512"
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*/
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#ifndef S_SPLINT_S
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DH *get_dh512()
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{
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static unsigned char dh512_p[]={
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0xC9,0xD7,0x05,0xDA,0x5F,0xAB,0x14,0xE8,0x11,0x56,0x77,0x85,
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0xB1,0x24,0x2C,0x95,0x60,0xEA,0xE2,0x10,0x6F,0x0F,0x84,0xEC,
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0xF4,0x45,0xE8,0x90,0x7A,0xA7,0x03,0xFF,0x5B,0x88,0x53,0xDE,
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0xC4,0xDE,0xBC,0x42,0x78,0x71,0x23,0x7E,0x24,0xA5,0x5E,0x4E,
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0xEF,0x6F,0xFF,0x5F,0xAF,0xBE,0x8A,0x77,0x62,0xB4,0x65,0x82,
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0x7E,0xC9,0xED,0x2F,
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};
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static unsigned char dh512_g[]={
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0x8D,0x3A,0x52,0xBC,0x8A,0x71,0x94,0x33,0x2F,0xE1,0xE8,0x4C,
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0x73,0x47,0x03,0x4E,0x7D,0x40,0xE5,0x84,0xA0,0xB5,0x6D,0x10,
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0x6F,0x90,0x43,0x05,0x1A,0xF9,0x0B,0x6A,0xD1,0x2A,0x9C,0x25,
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0x0A,0xB9,0xD1,0x14,0xDC,0x35,0x1C,0x48,0x7C,0xC6,0x0C,0x6D,
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0x32,0x1D,0xD3,0xC8,0x10,0xA8,0x82,0x14,0xA2,0x1C,0xF4,0x53,
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0x23,0x3B,0x1C,0xB9,
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};
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DH *dh;
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if ((dh=DH_new()) == NULL) return(NULL);
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dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
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dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
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if ((dh->p == NULL) || (dh->g == NULL))
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{ DH_free(dh); return(NULL); }
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dh->length = 160;
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return(dh);
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}
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#endif /* SPLINT */
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struct daemon_remote*
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daemon_remote_create(struct config_file* cfg)
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{
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char* s_cert;
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char* s_key;
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struct daemon_remote* rc = (struct daemon_remote*)calloc(1,
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sizeof(*rc));
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if(!rc) {
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log_err("out of memory in daemon_remote_create");
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return NULL;
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}
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rc->max_active = 10;
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if(!cfg->remote_control_enable) {
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rc->ctx = NULL;
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return rc;
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}
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rc->ctx = SSL_CTX_new(SSLv23_server_method());
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if(!rc->ctx) {
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log_crypto_err("could not SSL_CTX_new");
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free(rc);
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return NULL;
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}
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/* no SSLv2, SSLv3 because has defects */
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if(!(SSL_CTX_set_options(rc->ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)){
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log_crypto_err("could not set SSL_OP_NO_SSLv2");
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daemon_remote_delete(rc);
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return NULL;
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}
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if(!(SSL_CTX_set_options(rc->ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)){
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log_crypto_err("could not set SSL_OP_NO_SSLv3");
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daemon_remote_delete(rc);
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return NULL;
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}
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if (cfg->remote_control_use_cert == 0) {
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/* No certificates are requested */
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if(!SSL_CTX_set_cipher_list(rc->ctx, "aNULL")) {
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log_crypto_err("Failed to set aNULL cipher list");
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return NULL;
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}
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/* Since we have no certificates and hence no source of
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* DH params, let's generate and set them
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*/
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if(!SSL_CTX_set_tmp_dh(rc->ctx,get_dh512())) {
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log_crypto_err("Wanted to set DH param, but failed");
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return NULL;
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}
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return rc;
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}
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rc->use_cert = 1;
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s_cert = fname_after_chroot(cfg->server_cert_file, cfg, 1);
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s_key = fname_after_chroot(cfg->server_key_file, cfg, 1);
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if(!s_cert || !s_key) {
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log_err("out of memory in remote control fname");
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goto setup_error;
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}
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verbose(VERB_ALGO, "setup SSL certificates");
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if (!SSL_CTX_use_certificate_file(rc->ctx,s_cert,SSL_FILETYPE_PEM)) {
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log_err("Error for server-cert-file: %s", s_cert);
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log_crypto_err("Error in SSL_CTX use_certificate_file");
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goto setup_error;
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}
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if(!SSL_CTX_use_PrivateKey_file(rc->ctx,s_key,SSL_FILETYPE_PEM)) {
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log_err("Error for server-key-file: %s", s_key);
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log_crypto_err("Error in SSL_CTX use_PrivateKey_file");
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goto setup_error;
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}
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if(!SSL_CTX_check_private_key(rc->ctx)) {
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log_err("Error for server-key-file: %s", s_key);
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log_crypto_err("Error in SSL_CTX check_private_key");
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goto setup_error;
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}
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if(!SSL_CTX_load_verify_locations(rc->ctx, s_cert, NULL)) {
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log_crypto_err("Error setting up SSL_CTX verify locations");
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setup_error:
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free(s_cert);
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free(s_key);
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daemon_remote_delete(rc);
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return NULL;
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}
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SSL_CTX_set_client_CA_list(rc->ctx, SSL_load_client_CA_file(s_cert));
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SSL_CTX_set_verify(rc->ctx, SSL_VERIFY_PEER, NULL);
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free(s_cert);
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free(s_key);
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return rc;
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}
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void daemon_remote_clear(struct daemon_remote* rc)
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{
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struct rc_state* p, *np;
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if(!rc) return;
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/* but do not close the ports */
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listen_list_delete(rc->accept_list);
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rc->accept_list = NULL;
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/* do close these sockets */
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p = rc->busy_list;
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while(p) {
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np = p->next;
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if(p->ssl)
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SSL_free(p->ssl);
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comm_point_delete(p->c);
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free(p);
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p = np;
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}
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rc->busy_list = NULL;
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rc->active = 0;
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rc->worker = NULL;
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}
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void daemon_remote_delete(struct daemon_remote* rc)
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{
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if(!rc) return;
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daemon_remote_clear(rc);
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if(rc->ctx) {
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SSL_CTX_free(rc->ctx);
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}
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free(rc);
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}
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/**
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* Add and open a new control port
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* @param ip: ip str
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* @param nr: port nr
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* @param list: list head
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* @param noproto_is_err: if lack of protocol support is an error.
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* @param cfg: config with username for chown of unix-sockets.
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* @return false on failure.
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*/
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static int
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add_open(const char* ip, int nr, struct listen_port** list, int noproto_is_err,
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struct config_file* cfg)
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{
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struct addrinfo hints;
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struct addrinfo* res;
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struct listen_port* n;
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int noproto;
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int fd, r;
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char port[15];
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snprintf(port, sizeof(port), "%d", nr);
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port[sizeof(port)-1]=0;
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memset(&hints, 0, sizeof(hints));
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if(ip[0] == '/') {
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/* This looks like a local socket */
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fd = create_local_accept_sock(ip, &noproto);
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/*
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* Change socket ownership and permissions so users other
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* than root can access it provided they are in the same
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* group as the user we run as.
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*/
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if(fd != -1) {
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#ifdef HAVE_CHOWN
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if (cfg->username && cfg->username[0] &&
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cfg_uid != (uid_t)-1)
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chown(ip, cfg_uid, cfg_gid);
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chmod(ip, (mode_t)(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP));
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#else
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(void)cfg;
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#endif
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}
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} else {
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
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if((r = getaddrinfo(ip, port, &hints, &res)) != 0 || !res) {
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#ifdef USE_WINSOCK
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if(!noproto_is_err && r == EAI_NONAME) {
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/* tried to lookup the address as name */
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return 1; /* return success, but do nothing */
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}
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#endif /* USE_WINSOCK */
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log_err("control interface %s:%s getaddrinfo: %s %s",
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ip?ip:"default", port, gai_strerror(r),
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#ifdef EAI_SYSTEM
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r==EAI_SYSTEM?(char*)strerror(errno):""
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#else
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""
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#endif
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);
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return 0;
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}
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/* open fd */
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fd = create_tcp_accept_sock(res, 1, &noproto, 0,
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cfg->ip_transparent);
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freeaddrinfo(res);
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}
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if(fd == -1 && noproto) {
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if(!noproto_is_err)
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return 1; /* return success, but do nothing */
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log_err("cannot open control interface %s %d : "
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"protocol not supported", ip, nr);
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return 0;
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}
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if(fd == -1) {
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log_err("cannot open control interface %s %d", ip, nr);
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return 0;
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}
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/* alloc */
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n = (struct listen_port*)calloc(1, sizeof(*n));
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if(!n) {
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#ifndef USE_WINSOCK
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close(fd);
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#else
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closesocket(fd);
|
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#endif
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log_err("out of memory");
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return 0;
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}
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n->next = *list;
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*list = n;
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n->fd = fd;
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return 1;
|
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}
|
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|
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struct listen_port* daemon_remote_open_ports(struct config_file* cfg)
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{
|
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struct listen_port* l = NULL;
|
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log_assert(cfg->remote_control_enable && cfg->control_port);
|
|
if(cfg->control_ifs) {
|
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struct config_strlist* p;
|
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for(p = cfg->control_ifs; p; p = p->next) {
|
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if(!add_open(p->str, cfg->control_port, &l, 1, cfg)) {
|
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listening_ports_free(l);
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return NULL;
|
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}
|
|
}
|
|
} else {
|
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/* defaults */
|
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if(cfg->do_ip6 &&
|
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!add_open("::1", cfg->control_port, &l, 0, cfg)) {
|
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listening_ports_free(l);
|
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return NULL;
|
|
}
|
|
if(cfg->do_ip4 &&
|
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!add_open("127.0.0.1", cfg->control_port, &l, 1, cfg)) {
|
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listening_ports_free(l);
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|
return NULL;
|
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}
|
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}
|
|
return l;
|
|
}
|
|
|
|
/** open accept commpoint */
|
|
static int
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accept_open(struct daemon_remote* rc, int fd)
|
|
{
|
|
struct listen_list* n = (struct listen_list*)malloc(sizeof(*n));
|
|
if(!n) {
|
|
log_err("out of memory");
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|
return 0;
|
|
}
|
|
n->next = rc->accept_list;
|
|
rc->accept_list = n;
|
|
/* open commpt */
|
|
n->com = comm_point_create_raw(rc->worker->base, fd, 0,
|
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&remote_accept_callback, rc);
|
|
if(!n->com)
|
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return 0;
|
|
/* keep this port open, its fd is kept in the rc portlist */
|
|
n->com->do_not_close = 1;
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return 1;
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|
}
|
|
|
|
int daemon_remote_open_accept(struct daemon_remote* rc,
|
|
struct listen_port* ports, struct worker* worker)
|
|
{
|
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struct listen_port* p;
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rc->worker = worker;
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for(p = ports; p; p = p->next) {
|
|
if(!accept_open(rc, p->fd)) {
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log_err("could not create accept comm point");
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return 0;
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|
}
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|
}
|
|
return 1;
|
|
}
|
|
|
|
void daemon_remote_stop_accept(struct daemon_remote* rc)
|
|
{
|
|
struct listen_list* p;
|
|
for(p=rc->accept_list; p; p=p->next) {
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|
comm_point_stop_listening(p->com);
|
|
}
|
|
}
|
|
|
|
void daemon_remote_start_accept(struct daemon_remote* rc)
|
|
{
|
|
struct listen_list* p;
|
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for(p=rc->accept_list; p; p=p->next) {
|
|
comm_point_start_listening(p->com, -1, -1);
|
|
}
|
|
}
|
|
|
|
int remote_accept_callback(struct comm_point* c, void* arg, int err,
|
|
struct comm_reply* ATTR_UNUSED(rep))
|
|
{
|
|
struct daemon_remote* rc = (struct daemon_remote*)arg;
|
|
struct sockaddr_storage addr;
|
|
socklen_t addrlen;
|
|
int newfd;
|
|
struct rc_state* n;
|
|
if(err != NETEVENT_NOERROR) {
|
|
log_err("error %d on remote_accept_callback", err);
|
|
return 0;
|
|
}
|
|
/* perform the accept */
|
|
newfd = comm_point_perform_accept(c, &addr, &addrlen);
|
|
if(newfd == -1)
|
|
return 0;
|
|
/* create new commpoint unless we are servicing already */
|
|
if(rc->active >= rc->max_active) {
|
|
log_warn("drop incoming remote control: too many connections");
|
|
close_exit:
|
|
#ifndef USE_WINSOCK
|
|
close(newfd);
|
|
#else
|
|
closesocket(newfd);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/* setup commpoint to service the remote control command */
|
|
n = (struct rc_state*)calloc(1, sizeof(*n));
|
|
if(!n) {
|
|
log_err("out of memory");
|
|
goto close_exit;
|
|
}
|
|
/* start in reading state */
|
|
n->c = comm_point_create_raw(rc->worker->base, newfd, 0,
|
|
&remote_control_callback, n);
|
|
if(!n->c) {
|
|
log_err("out of memory");
|
|
free(n);
|
|
goto close_exit;
|
|
}
|
|
log_addr(VERB_QUERY, "new control connection from", &addr, addrlen);
|
|
n->c->do_not_close = 0;
|
|
comm_point_stop_listening(n->c);
|
|
comm_point_start_listening(n->c, -1, REMOTE_CONTROL_TCP_TIMEOUT);
|
|
memcpy(&n->c->repinfo.addr, &addr, addrlen);
|
|
n->c->repinfo.addrlen = addrlen;
|
|
n->shake_state = rc_hs_read;
|
|
n->ssl = SSL_new(rc->ctx);
|
|
if(!n->ssl) {
|
|
log_crypto_err("could not SSL_new");
|
|
comm_point_delete(n->c);
|
|
free(n);
|
|
goto close_exit;
|
|
}
|
|
SSL_set_accept_state(n->ssl);
|
|
(void)SSL_set_mode(n->ssl, SSL_MODE_AUTO_RETRY);
|
|
if(!SSL_set_fd(n->ssl, newfd)) {
|
|
log_crypto_err("could not SSL_set_fd");
|
|
SSL_free(n->ssl);
|
|
comm_point_delete(n->c);
|
|
free(n);
|
|
goto close_exit;
|
|
}
|
|
|
|
n->rc = rc;
|
|
n->next = rc->busy_list;
|
|
rc->busy_list = n;
|
|
rc->active ++;
|
|
|
|
/* perform the first nonblocking read already, for windows,
|
|
* so it can return wouldblock. could be faster too. */
|
|
(void)remote_control_callback(n->c, n, NETEVENT_NOERROR, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/** delete from list */
|
|
static void
|
|
state_list_remove_elem(struct rc_state** list, struct comm_point* c)
|
|
{
|
|
while(*list) {
|
|
if( (*list)->c == c) {
|
|
*list = (*list)->next;
|
|
return;
|
|
}
|
|
list = &(*list)->next;
|
|
}
|
|
}
|
|
|
|
/** decrease active count and remove commpoint from busy list */
|
|
static void
|
|
clean_point(struct daemon_remote* rc, struct rc_state* s)
|
|
{
|
|
state_list_remove_elem(&rc->busy_list, s->c);
|
|
rc->active --;
|
|
if(s->ssl) {
|
|
SSL_shutdown(s->ssl);
|
|
SSL_free(s->ssl);
|
|
}
|
|
comm_point_delete(s->c);
|
|
free(s);
|
|
}
|
|
|
|
int
|
|
ssl_print_text(SSL* ssl, const char* text)
|
|
{
|
|
int r;
|
|
if(!ssl)
|
|
return 0;
|
|
ERR_clear_error();
|
|
if((r=SSL_write(ssl, text, (int)strlen(text))) <= 0) {
|
|
if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) {
|
|
verbose(VERB_QUERY, "warning, in SSL_write, peer "
|
|
"closed connection");
|
|
return 0;
|
|
}
|
|
log_crypto_err("could not SSL_write");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/** print text over the ssl connection */
|
|
static int
|
|
ssl_print_vmsg(SSL* ssl, const char* format, va_list args)
|
|
{
|
|
char msg[1024];
|
|
vsnprintf(msg, sizeof(msg), format, args);
|
|
return ssl_print_text(ssl, msg);
|
|
}
|
|
|
|
/** printf style printing to the ssl connection */
|
|
int ssl_printf(SSL* ssl, const char* format, ...)
|
|
{
|
|
va_list args;
|
|
int ret;
|
|
va_start(args, format);
|
|
ret = ssl_print_vmsg(ssl, format, args);
|
|
va_end(args);
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
ssl_read_line(SSL* ssl, char* buf, size_t max)
|
|
{
|
|
int r;
|
|
size_t len = 0;
|
|
if(!ssl)
|
|
return 0;
|
|
while(len < max) {
|
|
ERR_clear_error();
|
|
if((r=SSL_read(ssl, buf+len, 1)) <= 0) {
|
|
if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) {
|
|
buf[len] = 0;
|
|
return 1;
|
|
}
|
|
log_crypto_err("could not SSL_read");
|
|
return 0;
|
|
}
|
|
if(buf[len] == '\n') {
|
|
/* return string without \n */
|
|
buf[len] = 0;
|
|
return 1;
|
|
}
|
|
len++;
|
|
}
|
|
buf[max-1] = 0;
|
|
log_err("control line too long (%d): %s", (int)max, buf);
|
|
return 0;
|
|
}
|
|
|
|
/** skip whitespace, return new pointer into string */
|
|
static char*
|
|
skipwhite(char* str)
|
|
{
|
|
/* EOS \0 is not a space */
|
|
while( isspace((unsigned char)*str) )
|
|
str++;
|
|
return str;
|
|
}
|
|
|
|
/** send the OK to the control client */
|
|
static void send_ok(SSL* ssl)
|
|
{
|
|
(void)ssl_printf(ssl, "ok\n");
|
|
}
|
|
|
|
/** do the stop command */
|
|
static void
|
|
do_stop(SSL* ssl, struct daemon_remote* rc)
|
|
{
|
|
rc->worker->need_to_exit = 1;
|
|
comm_base_exit(rc->worker->base);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the reload command */
|
|
static void
|
|
do_reload(SSL* ssl, struct daemon_remote* rc)
|
|
{
|
|
rc->worker->need_to_exit = 0;
|
|
comm_base_exit(rc->worker->base);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the verbosity command */
|
|
static void
|
|
do_verbosity(SSL* ssl, char* str)
|
|
{
|
|
int val = atoi(str);
|
|
if(val == 0 && strcmp(str, "0") != 0) {
|
|
ssl_printf(ssl, "error in verbosity number syntax: %s\n", str);
|
|
return;
|
|
}
|
|
verbosity = val;
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** print stats from statinfo */
|
|
static int
|
|
print_stats(SSL* ssl, const char* nm, struct stats_info* s)
|
|
{
|
|
struct timeval avg;
|
|
if(!ssl_printf(ssl, "%s.num.queries"SQ"%lu\n", nm,
|
|
(unsigned long)s->svr.num_queries)) return 0;
|
|
if(!ssl_printf(ssl, "%s.num.cachehits"SQ"%lu\n", nm,
|
|
(unsigned long)(s->svr.num_queries
|
|
- s->svr.num_queries_missed_cache))) return 0;
|
|
if(!ssl_printf(ssl, "%s.num.cachemiss"SQ"%lu\n", nm,
|
|
(unsigned long)s->svr.num_queries_missed_cache)) return 0;
|
|
if(!ssl_printf(ssl, "%s.num.prefetch"SQ"%lu\n", nm,
|
|
(unsigned long)s->svr.num_queries_prefetch)) return 0;
|
|
if(!ssl_printf(ssl, "%s.num.recursivereplies"SQ"%lu\n", nm,
|
|
(unsigned long)s->mesh_replies_sent)) return 0;
|
|
if(!ssl_printf(ssl, "%s.requestlist.avg"SQ"%g\n", nm,
|
|
(s->svr.num_queries_missed_cache+s->svr.num_queries_prefetch)?
|
|
(double)s->svr.sum_query_list_size/
|
|
(s->svr.num_queries_missed_cache+
|
|
s->svr.num_queries_prefetch) : 0.0)) return 0;
|
|
if(!ssl_printf(ssl, "%s.requestlist.max"SQ"%lu\n", nm,
|
|
(unsigned long)s->svr.max_query_list_size)) return 0;
|
|
if(!ssl_printf(ssl, "%s.requestlist.overwritten"SQ"%lu\n", nm,
|
|
(unsigned long)s->mesh_jostled)) return 0;
|
|
if(!ssl_printf(ssl, "%s.requestlist.exceeded"SQ"%lu\n", nm,
|
|
(unsigned long)s->mesh_dropped)) return 0;
|
|
if(!ssl_printf(ssl, "%s.requestlist.current.all"SQ"%lu\n", nm,
|
|
(unsigned long)s->mesh_num_states)) return 0;
|
|
if(!ssl_printf(ssl, "%s.requestlist.current.user"SQ"%lu\n", nm,
|
|
(unsigned long)s->mesh_num_reply_states)) return 0;
|
|
timeval_divide(&avg, &s->mesh_replies_sum_wait, s->mesh_replies_sent);
|
|
if(!ssl_printf(ssl, "%s.recursion.time.avg"SQ ARG_LL "d.%6.6d\n", nm,
|
|
(long long)avg.tv_sec, (int)avg.tv_usec)) return 0;
|
|
if(!ssl_printf(ssl, "%s.recursion.time.median"SQ"%g\n", nm,
|
|
s->mesh_time_median)) return 0;
|
|
if(!ssl_printf(ssl, "%s.tcpusage"SQ"%lu\n", nm,
|
|
(unsigned long)s->svr.tcp_accept_usage)) return 0;
|
|
return 1;
|
|
}
|
|
|
|
/** print stats for one thread */
|
|
static int
|
|
print_thread_stats(SSL* ssl, int i, struct stats_info* s)
|
|
{
|
|
char nm[16];
|
|
snprintf(nm, sizeof(nm), "thread%d", i);
|
|
nm[sizeof(nm)-1]=0;
|
|
return print_stats(ssl, nm, s);
|
|
}
|
|
|
|
/** print long number */
|
|
static int
|
|
print_longnum(SSL* ssl, const char* desc, size_t x)
|
|
{
|
|
if(x > 1024*1024*1024) {
|
|
/* more than a Gb */
|
|
size_t front = x / (size_t)1000000;
|
|
size_t back = x % (size_t)1000000;
|
|
return ssl_printf(ssl, "%s%u%6.6u\n", desc,
|
|
(unsigned)front, (unsigned)back);
|
|
} else {
|
|
return ssl_printf(ssl, "%s%lu\n", desc, (unsigned long)x);
|
|
}
|
|
}
|
|
|
|
/** print mem stats */
|
|
static int
|
|
print_mem(SSL* ssl, struct worker* worker, struct daemon* daemon)
|
|
{
|
|
int m;
|
|
size_t msg, rrset, val, iter;
|
|
#ifdef HAVE_SBRK
|
|
extern void* unbound_start_brk;
|
|
void* cur = sbrk(0);
|
|
if(!print_longnum(ssl, "mem.total.sbrk"SQ,
|
|
(size_t)((char*)cur - (char*)unbound_start_brk))) return 0;
|
|
#endif /* HAVE_SBRK */
|
|
msg = slabhash_get_mem(daemon->env->msg_cache);
|
|
rrset = slabhash_get_mem(&daemon->env->rrset_cache->table);
|
|
val=0;
|
|
iter=0;
|
|
m = modstack_find(&worker->env.mesh->mods, "validator");
|
|
if(m != -1) {
|
|
fptr_ok(fptr_whitelist_mod_get_mem(worker->env.mesh->
|
|
mods.mod[m]->get_mem));
|
|
val = (*worker->env.mesh->mods.mod[m]->get_mem)
|
|
(&worker->env, m);
|
|
}
|
|
m = modstack_find(&worker->env.mesh->mods, "iterator");
|
|
if(m != -1) {
|
|
fptr_ok(fptr_whitelist_mod_get_mem(worker->env.mesh->
|
|
mods.mod[m]->get_mem));
|
|
iter = (*worker->env.mesh->mods.mod[m]->get_mem)
|
|
(&worker->env, m);
|
|
}
|
|
|
|
if(!print_longnum(ssl, "mem.cache.rrset"SQ, rrset))
|
|
return 0;
|
|
if(!print_longnum(ssl, "mem.cache.message"SQ, msg))
|
|
return 0;
|
|
if(!print_longnum(ssl, "mem.mod.iterator"SQ, iter))
|
|
return 0;
|
|
if(!print_longnum(ssl, "mem.mod.validator"SQ, val))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
/** print uptime stats */
|
|
static int
|
|
print_uptime(SSL* ssl, struct worker* worker, int reset)
|
|
{
|
|
struct timeval now = *worker->env.now_tv;
|
|
struct timeval up, dt;
|
|
timeval_subtract(&up, &now, &worker->daemon->time_boot);
|
|
timeval_subtract(&dt, &now, &worker->daemon->time_last_stat);
|
|
if(reset)
|
|
worker->daemon->time_last_stat = now;
|
|
if(!ssl_printf(ssl, "time.now"SQ ARG_LL "d.%6.6d\n",
|
|
(long long)now.tv_sec, (unsigned)now.tv_usec)) return 0;
|
|
if(!ssl_printf(ssl, "time.up"SQ ARG_LL "d.%6.6d\n",
|
|
(long long)up.tv_sec, (unsigned)up.tv_usec)) return 0;
|
|
if(!ssl_printf(ssl, "time.elapsed"SQ ARG_LL "d.%6.6d\n",
|
|
(long long)dt.tv_sec, (unsigned)dt.tv_usec)) return 0;
|
|
return 1;
|
|
}
|
|
|
|
/** print extended histogram */
|
|
static int
|
|
print_hist(SSL* ssl, struct stats_info* s)
|
|
{
|
|
struct timehist* hist;
|
|
size_t i;
|
|
hist = timehist_setup();
|
|
if(!hist) {
|
|
log_err("out of memory");
|
|
return 0;
|
|
}
|
|
timehist_import(hist, s->svr.hist, NUM_BUCKETS_HIST);
|
|
for(i=0; i<hist->num; i++) {
|
|
if(!ssl_printf(ssl,
|
|
"histogram.%6.6d.%6.6d.to.%6.6d.%6.6d=%lu\n",
|
|
(int)hist->buckets[i].lower.tv_sec,
|
|
(int)hist->buckets[i].lower.tv_usec,
|
|
(int)hist->buckets[i].upper.tv_sec,
|
|
(int)hist->buckets[i].upper.tv_usec,
|
|
(unsigned long)hist->buckets[i].count)) {
|
|
timehist_delete(hist);
|
|
return 0;
|
|
}
|
|
}
|
|
timehist_delete(hist);
|
|
return 1;
|
|
}
|
|
|
|
/** print extended stats */
|
|
static int
|
|
print_ext(SSL* ssl, struct stats_info* s)
|
|
{
|
|
int i;
|
|
char nm[16];
|
|
const sldns_rr_descriptor* desc;
|
|
const sldns_lookup_table* lt;
|
|
/* TYPE */
|
|
for(i=0; i<STATS_QTYPE_NUM; i++) {
|
|
if(inhibit_zero && s->svr.qtype[i] == 0)
|
|
continue;
|
|
desc = sldns_rr_descript((uint16_t)i);
|
|
if(desc && desc->_name) {
|
|
snprintf(nm, sizeof(nm), "%s", desc->_name);
|
|
} else if (i == LDNS_RR_TYPE_IXFR) {
|
|
snprintf(nm, sizeof(nm), "IXFR");
|
|
} else if (i == LDNS_RR_TYPE_AXFR) {
|
|
snprintf(nm, sizeof(nm), "AXFR");
|
|
} else if (i == LDNS_RR_TYPE_MAILA) {
|
|
snprintf(nm, sizeof(nm), "MAILA");
|
|
} else if (i == LDNS_RR_TYPE_MAILB) {
|
|
snprintf(nm, sizeof(nm), "MAILB");
|
|
} else if (i == LDNS_RR_TYPE_ANY) {
|
|
snprintf(nm, sizeof(nm), "ANY");
|
|
} else {
|
|
snprintf(nm, sizeof(nm), "TYPE%d", i);
|
|
}
|
|
if(!ssl_printf(ssl, "num.query.type.%s"SQ"%lu\n",
|
|
nm, (unsigned long)s->svr.qtype[i])) return 0;
|
|
}
|
|
if(!inhibit_zero || s->svr.qtype_big) {
|
|
if(!ssl_printf(ssl, "num.query.type.other"SQ"%lu\n",
|
|
(unsigned long)s->svr.qtype_big)) return 0;
|
|
}
|
|
/* CLASS */
|
|
for(i=0; i<STATS_QCLASS_NUM; i++) {
|
|
if(inhibit_zero && s->svr.qclass[i] == 0)
|
|
continue;
|
|
lt = sldns_lookup_by_id(sldns_rr_classes, i);
|
|
if(lt && lt->name) {
|
|
snprintf(nm, sizeof(nm), "%s", lt->name);
|
|
} else {
|
|
snprintf(nm, sizeof(nm), "CLASS%d", i);
|
|
}
|
|
if(!ssl_printf(ssl, "num.query.class.%s"SQ"%lu\n",
|
|
nm, (unsigned long)s->svr.qclass[i])) return 0;
|
|
}
|
|
if(!inhibit_zero || s->svr.qclass_big) {
|
|
if(!ssl_printf(ssl, "num.query.class.other"SQ"%lu\n",
|
|
(unsigned long)s->svr.qclass_big)) return 0;
|
|
}
|
|
/* OPCODE */
|
|
for(i=0; i<STATS_OPCODE_NUM; i++) {
|
|
if(inhibit_zero && s->svr.qopcode[i] == 0)
|
|
continue;
|
|
lt = sldns_lookup_by_id(sldns_opcodes, i);
|
|
if(lt && lt->name) {
|
|
snprintf(nm, sizeof(nm), "%s", lt->name);
|
|
} else {
|
|
snprintf(nm, sizeof(nm), "OPCODE%d", i);
|
|
}
|
|
if(!ssl_printf(ssl, "num.query.opcode.%s"SQ"%lu\n",
|
|
nm, (unsigned long)s->svr.qopcode[i])) return 0;
|
|
}
|
|
/* transport */
|
|
if(!ssl_printf(ssl, "num.query.tcp"SQ"%lu\n",
|
|
(unsigned long)s->svr.qtcp)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.tcpout"SQ"%lu\n",
|
|
(unsigned long)s->svr.qtcp_outgoing)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.ipv6"SQ"%lu\n",
|
|
(unsigned long)s->svr.qipv6)) return 0;
|
|
/* flags */
|
|
if(!ssl_printf(ssl, "num.query.flags.QR"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_QR)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.AA"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_AA)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.TC"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_TC)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.RD"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_RD)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.RA"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_RA)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.Z"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_Z)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.AD"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_AD)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.flags.CD"SQ"%lu\n",
|
|
(unsigned long)s->svr.qbit_CD)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.edns.present"SQ"%lu\n",
|
|
(unsigned long)s->svr.qEDNS)) return 0;
|
|
if(!ssl_printf(ssl, "num.query.edns.DO"SQ"%lu\n",
|
|
(unsigned long)s->svr.qEDNS_DO)) return 0;
|
|
|
|
/* RCODE */
|
|
for(i=0; i<STATS_RCODE_NUM; i++) {
|
|
/* Always include RCODEs 0-5 */
|
|
if(inhibit_zero && i > LDNS_RCODE_REFUSED && s->svr.ans_rcode[i] == 0)
|
|
continue;
|
|
lt = sldns_lookup_by_id(sldns_rcodes, i);
|
|
if(lt && lt->name) {
|
|
snprintf(nm, sizeof(nm), "%s", lt->name);
|
|
} else {
|
|
snprintf(nm, sizeof(nm), "RCODE%d", i);
|
|
}
|
|
if(!ssl_printf(ssl, "num.answer.rcode.%s"SQ"%lu\n",
|
|
nm, (unsigned long)s->svr.ans_rcode[i])) return 0;
|
|
}
|
|
if(!inhibit_zero || s->svr.ans_rcode_nodata) {
|
|
if(!ssl_printf(ssl, "num.answer.rcode.nodata"SQ"%lu\n",
|
|
(unsigned long)s->svr.ans_rcode_nodata)) return 0;
|
|
}
|
|
/* validation */
|
|
if(!ssl_printf(ssl, "num.answer.secure"SQ"%lu\n",
|
|
(unsigned long)s->svr.ans_secure)) return 0;
|
|
if(!ssl_printf(ssl, "num.answer.bogus"SQ"%lu\n",
|
|
(unsigned long)s->svr.ans_bogus)) return 0;
|
|
if(!ssl_printf(ssl, "num.rrset.bogus"SQ"%lu\n",
|
|
(unsigned long)s->svr.rrset_bogus)) return 0;
|
|
/* threat detection */
|
|
if(!ssl_printf(ssl, "unwanted.queries"SQ"%lu\n",
|
|
(unsigned long)s->svr.unwanted_queries)) return 0;
|
|
if(!ssl_printf(ssl, "unwanted.replies"SQ"%lu\n",
|
|
(unsigned long)s->svr.unwanted_replies)) return 0;
|
|
/* cache counts */
|
|
if(!ssl_printf(ssl, "msg.cache.count"SQ"%u\n",
|
|
(unsigned)s->svr.msg_cache_count)) return 0;
|
|
if(!ssl_printf(ssl, "rrset.cache.count"SQ"%u\n",
|
|
(unsigned)s->svr.rrset_cache_count)) return 0;
|
|
if(!ssl_printf(ssl, "infra.cache.count"SQ"%u\n",
|
|
(unsigned)s->svr.infra_cache_count)) return 0;
|
|
if(!ssl_printf(ssl, "key.cache.count"SQ"%u\n",
|
|
(unsigned)s->svr.key_cache_count)) return 0;
|
|
return 1;
|
|
}
|
|
|
|
/** do the stats command */
|
|
static void
|
|
do_stats(SSL* ssl, struct daemon_remote* rc, int reset)
|
|
{
|
|
struct daemon* daemon = rc->worker->daemon;
|
|
struct stats_info total;
|
|
struct stats_info s;
|
|
int i;
|
|
log_assert(daemon->num > 0);
|
|
/* gather all thread statistics in one place */
|
|
for(i=0; i<daemon->num; i++) {
|
|
server_stats_obtain(rc->worker, daemon->workers[i], &s, reset);
|
|
if(!print_thread_stats(ssl, i, &s))
|
|
return;
|
|
if(i == 0)
|
|
total = s;
|
|
else server_stats_add(&total, &s);
|
|
}
|
|
/* print the thread statistics */
|
|
total.mesh_time_median /= (double)daemon->num;
|
|
if(!print_stats(ssl, "total", &total))
|
|
return;
|
|
if(!print_uptime(ssl, rc->worker, reset))
|
|
return;
|
|
if(daemon->cfg->stat_extended) {
|
|
if(!print_mem(ssl, rc->worker, daemon))
|
|
return;
|
|
if(!print_hist(ssl, &total))
|
|
return;
|
|
if(!print_ext(ssl, &total))
|
|
return;
|
|
}
|
|
}
|
|
|
|
/** parse commandline argument domain name */
|
|
static int
|
|
parse_arg_name(SSL* ssl, char* str, uint8_t** res, size_t* len, int* labs)
|
|
{
|
|
uint8_t nm[LDNS_MAX_DOMAINLEN+1];
|
|
size_t nmlen = sizeof(nm);
|
|
int status;
|
|
*res = NULL;
|
|
*len = 0;
|
|
*labs = 0;
|
|
status = sldns_str2wire_dname_buf(str, nm, &nmlen);
|
|
if(status != 0) {
|
|
ssl_printf(ssl, "error cannot parse name %s at %d: %s\n", str,
|
|
LDNS_WIREPARSE_OFFSET(status),
|
|
sldns_get_errorstr_parse(status));
|
|
return 0;
|
|
}
|
|
*res = memdup(nm, nmlen);
|
|
if(!*res) {
|
|
ssl_printf(ssl, "error out of memory\n");
|
|
return 0;
|
|
}
|
|
*labs = dname_count_size_labels(*res, len);
|
|
return 1;
|
|
}
|
|
|
|
/** find second argument, modifies string */
|
|
static int
|
|
find_arg2(SSL* ssl, char* arg, char** arg2)
|
|
{
|
|
char* as = strchr(arg, ' ');
|
|
char* at = strchr(arg, '\t');
|
|
if(as && at) {
|
|
if(at < as)
|
|
as = at;
|
|
as[0]=0;
|
|
*arg2 = skipwhite(as+1);
|
|
} else if(as) {
|
|
as[0]=0;
|
|
*arg2 = skipwhite(as+1);
|
|
} else if(at) {
|
|
at[0]=0;
|
|
*arg2 = skipwhite(at+1);
|
|
} else {
|
|
ssl_printf(ssl, "error could not find next argument "
|
|
"after %s\n", arg);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/** Add a new zone */
|
|
static void
|
|
do_zone_add(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
char* arg2;
|
|
enum localzone_type t;
|
|
struct local_zone* z;
|
|
if(!find_arg2(ssl, arg, &arg2))
|
|
return;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
if(!local_zone_str2type(arg2, &t)) {
|
|
ssl_printf(ssl, "error not a zone type. %s\n", arg2);
|
|
free(nm);
|
|
return;
|
|
}
|
|
lock_rw_wrlock(&worker->daemon->local_zones->lock);
|
|
if((z=local_zones_find(worker->daemon->local_zones, nm, nmlen,
|
|
nmlabs, LDNS_RR_CLASS_IN))) {
|
|
/* already present in tree */
|
|
lock_rw_wrlock(&z->lock);
|
|
z->type = t; /* update type anyway */
|
|
lock_rw_unlock(&z->lock);
|
|
free(nm);
|
|
lock_rw_unlock(&worker->daemon->local_zones->lock);
|
|
send_ok(ssl);
|
|
return;
|
|
}
|
|
if(!local_zones_add_zone(worker->daemon->local_zones, nm, nmlen,
|
|
nmlabs, LDNS_RR_CLASS_IN, t)) {
|
|
lock_rw_unlock(&worker->daemon->local_zones->lock);
|
|
ssl_printf(ssl, "error out of memory\n");
|
|
return;
|
|
}
|
|
lock_rw_unlock(&worker->daemon->local_zones->lock);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** Remove a zone */
|
|
static void
|
|
do_zone_remove(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
struct local_zone* z;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
lock_rw_wrlock(&worker->daemon->local_zones->lock);
|
|
if((z=local_zones_find(worker->daemon->local_zones, nm, nmlen,
|
|
nmlabs, LDNS_RR_CLASS_IN))) {
|
|
/* present in tree */
|
|
local_zones_del_zone(worker->daemon->local_zones, z);
|
|
}
|
|
lock_rw_unlock(&worker->daemon->local_zones->lock);
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** Add new RR data */
|
|
static void
|
|
do_data_add(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
if(!local_zones_add_RR(worker->daemon->local_zones, arg)) {
|
|
ssl_printf(ssl,"error in syntax or out of memory, %s\n", arg);
|
|
return;
|
|
}
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** Remove RR data */
|
|
static void
|
|
do_data_remove(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
local_zones_del_data(worker->daemon->local_zones, nm,
|
|
nmlen, nmlabs, LDNS_RR_CLASS_IN);
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** cache lookup of nameservers */
|
|
static void
|
|
do_lookup(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
(void)print_deleg_lookup(ssl, worker, nm, nmlen, nmlabs);
|
|
free(nm);
|
|
}
|
|
|
|
/** flush something from rrset and msg caches */
|
|
static void
|
|
do_cache_remove(struct worker* worker, uint8_t* nm, size_t nmlen,
|
|
uint16_t t, uint16_t c)
|
|
{
|
|
hashvalue_t h;
|
|
struct query_info k;
|
|
rrset_cache_remove(worker->env.rrset_cache, nm, nmlen, t, c, 0);
|
|
if(t == LDNS_RR_TYPE_SOA)
|
|
rrset_cache_remove(worker->env.rrset_cache, nm, nmlen, t, c,
|
|
PACKED_RRSET_SOA_NEG);
|
|
k.qname = nm;
|
|
k.qname_len = nmlen;
|
|
k.qtype = t;
|
|
k.qclass = c;
|
|
h = query_info_hash(&k, 0);
|
|
slabhash_remove(worker->env.msg_cache, h, &k);
|
|
if(t == LDNS_RR_TYPE_AAAA) {
|
|
/* for AAAA also flush dns64 bit_cd packet */
|
|
h = query_info_hash(&k, BIT_CD);
|
|
slabhash_remove(worker->env.msg_cache, h, &k);
|
|
}
|
|
}
|
|
|
|
/** flush a type */
|
|
static void
|
|
do_flush_type(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
char* arg2;
|
|
uint16_t t;
|
|
if(!find_arg2(ssl, arg, &arg2))
|
|
return;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
t = sldns_get_rr_type_by_name(arg2);
|
|
do_cache_remove(worker, nm, nmlen, t, LDNS_RR_CLASS_IN);
|
|
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** flush statistics */
|
|
static void
|
|
do_flush_stats(SSL* ssl, struct worker* worker)
|
|
{
|
|
worker_stats_clear(worker);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/**
|
|
* Local info for deletion functions
|
|
*/
|
|
struct del_info {
|
|
/** worker */
|
|
struct worker* worker;
|
|
/** name to delete */
|
|
uint8_t* name;
|
|
/** length */
|
|
size_t len;
|
|
/** labels */
|
|
int labs;
|
|
/** now */
|
|
time_t now;
|
|
/** time to invalidate to */
|
|
time_t expired;
|
|
/** number of rrsets removed */
|
|
size_t num_rrsets;
|
|
/** number of msgs removed */
|
|
size_t num_msgs;
|
|
/** number of key entries removed */
|
|
size_t num_keys;
|
|
/** length of addr */
|
|
socklen_t addrlen;
|
|
/** socket address for host deletion */
|
|
struct sockaddr_storage addr;
|
|
};
|
|
|
|
/** callback to delete hosts in infra cache */
|
|
static void
|
|
infra_del_host(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct infra_key* k = (struct infra_key*)e->key;
|
|
if(sockaddr_cmp(&inf->addr, inf->addrlen, &k->addr, k->addrlen) == 0) {
|
|
struct infra_data* d = (struct infra_data*)e->data;
|
|
d->probedelay = 0;
|
|
d->timeout_A = 0;
|
|
d->timeout_AAAA = 0;
|
|
d->timeout_other = 0;
|
|
rtt_init(&d->rtt);
|
|
if(d->ttl >= inf->now) {
|
|
d->ttl = inf->expired;
|
|
inf->num_keys++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** flush infra cache */
|
|
static void
|
|
do_flush_infra(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
struct sockaddr_storage addr;
|
|
socklen_t len;
|
|
struct del_info inf;
|
|
if(strcmp(arg, "all") == 0) {
|
|
slabhash_clear(worker->env.infra_cache->hosts);
|
|
send_ok(ssl);
|
|
return;
|
|
}
|
|
if(!ipstrtoaddr(arg, UNBOUND_DNS_PORT, &addr, &len)) {
|
|
(void)ssl_printf(ssl, "error parsing ip addr: '%s'\n", arg);
|
|
return;
|
|
}
|
|
/* delete all entries from cache */
|
|
/* what we do is to set them all expired */
|
|
inf.worker = worker;
|
|
inf.name = 0;
|
|
inf.len = 0;
|
|
inf.labs = 0;
|
|
inf.now = *worker->env.now;
|
|
inf.expired = *worker->env.now;
|
|
inf.expired -= 3; /* handle 3 seconds skew between threads */
|
|
inf.num_rrsets = 0;
|
|
inf.num_msgs = 0;
|
|
inf.num_keys = 0;
|
|
inf.addrlen = len;
|
|
memmove(&inf.addr, &addr, len);
|
|
slabhash_traverse(worker->env.infra_cache->hosts, 1, &infra_del_host,
|
|
&inf);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** flush requestlist */
|
|
static void
|
|
do_flush_requestlist(SSL* ssl, struct worker* worker)
|
|
{
|
|
mesh_delete_all(worker->env.mesh);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** callback to delete rrsets in a zone */
|
|
static void
|
|
zone_del_rrset(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct ub_packed_rrset_key* k = (struct ub_packed_rrset_key*)e->key;
|
|
if(dname_subdomain_c(k->rk.dname, inf->name)) {
|
|
struct packed_rrset_data* d =
|
|
(struct packed_rrset_data*)e->data;
|
|
if(d->ttl >= inf->now) {
|
|
d->ttl = inf->expired;
|
|
inf->num_rrsets++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** callback to delete messages in a zone */
|
|
static void
|
|
zone_del_msg(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct msgreply_entry* k = (struct msgreply_entry*)e->key;
|
|
if(dname_subdomain_c(k->key.qname, inf->name)) {
|
|
struct reply_info* d = (struct reply_info*)e->data;
|
|
if(d->ttl >= inf->now) {
|
|
d->ttl = inf->expired;
|
|
inf->num_msgs++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** callback to delete keys in zone */
|
|
static void
|
|
zone_del_kcache(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct key_entry_key* k = (struct key_entry_key*)e->key;
|
|
if(dname_subdomain_c(k->name, inf->name)) {
|
|
struct key_entry_data* d = (struct key_entry_data*)e->data;
|
|
if(d->ttl >= inf->now) {
|
|
d->ttl = inf->expired;
|
|
inf->num_keys++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** remove all rrsets and keys from zone from cache */
|
|
static void
|
|
do_flush_zone(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
struct del_info inf;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
/* delete all RRs and key entries from zone */
|
|
/* what we do is to set them all expired */
|
|
inf.worker = worker;
|
|
inf.name = nm;
|
|
inf.len = nmlen;
|
|
inf.labs = nmlabs;
|
|
inf.now = *worker->env.now;
|
|
inf.expired = *worker->env.now;
|
|
inf.expired -= 3; /* handle 3 seconds skew between threads */
|
|
inf.num_rrsets = 0;
|
|
inf.num_msgs = 0;
|
|
inf.num_keys = 0;
|
|
slabhash_traverse(&worker->env.rrset_cache->table, 1,
|
|
&zone_del_rrset, &inf);
|
|
|
|
slabhash_traverse(worker->env.msg_cache, 1, &zone_del_msg, &inf);
|
|
|
|
/* and validator cache */
|
|
if(worker->env.key_cache) {
|
|
slabhash_traverse(worker->env.key_cache->slab, 1,
|
|
&zone_del_kcache, &inf);
|
|
}
|
|
|
|
free(nm);
|
|
|
|
(void)ssl_printf(ssl, "ok removed %lu rrsets, %lu messages "
|
|
"and %lu key entries\n", (unsigned long)inf.num_rrsets,
|
|
(unsigned long)inf.num_msgs, (unsigned long)inf.num_keys);
|
|
}
|
|
|
|
/** callback to delete bogus rrsets */
|
|
static void
|
|
bogus_del_rrset(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct packed_rrset_data* d = (struct packed_rrset_data*)e->data;
|
|
if(d->security == sec_status_bogus) {
|
|
d->ttl = inf->expired;
|
|
inf->num_rrsets++;
|
|
}
|
|
}
|
|
|
|
/** callback to delete bogus messages */
|
|
static void
|
|
bogus_del_msg(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct reply_info* d = (struct reply_info*)e->data;
|
|
if(d->security == sec_status_bogus) {
|
|
d->ttl = inf->expired;
|
|
inf->num_msgs++;
|
|
}
|
|
}
|
|
|
|
/** callback to delete bogus keys */
|
|
static void
|
|
bogus_del_kcache(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct key_entry_data* d = (struct key_entry_data*)e->data;
|
|
if(d->isbad) {
|
|
d->ttl = inf->expired;
|
|
inf->num_keys++;
|
|
}
|
|
}
|
|
|
|
/** remove all bogus rrsets, msgs and keys from cache */
|
|
static void
|
|
do_flush_bogus(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct del_info inf;
|
|
/* what we do is to set them all expired */
|
|
inf.worker = worker;
|
|
inf.now = *worker->env.now;
|
|
inf.expired = *worker->env.now;
|
|
inf.expired -= 3; /* handle 3 seconds skew between threads */
|
|
inf.num_rrsets = 0;
|
|
inf.num_msgs = 0;
|
|
inf.num_keys = 0;
|
|
slabhash_traverse(&worker->env.rrset_cache->table, 1,
|
|
&bogus_del_rrset, &inf);
|
|
|
|
slabhash_traverse(worker->env.msg_cache, 1, &bogus_del_msg, &inf);
|
|
|
|
/* and validator cache */
|
|
if(worker->env.key_cache) {
|
|
slabhash_traverse(worker->env.key_cache->slab, 1,
|
|
&bogus_del_kcache, &inf);
|
|
}
|
|
|
|
(void)ssl_printf(ssl, "ok removed %lu rrsets, %lu messages "
|
|
"and %lu key entries\n", (unsigned long)inf.num_rrsets,
|
|
(unsigned long)inf.num_msgs, (unsigned long)inf.num_keys);
|
|
}
|
|
|
|
/** callback to delete negative and servfail rrsets */
|
|
static void
|
|
negative_del_rrset(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct ub_packed_rrset_key* k = (struct ub_packed_rrset_key*)e->key;
|
|
struct packed_rrset_data* d = (struct packed_rrset_data*)e->data;
|
|
/* delete the parentside negative cache rrsets,
|
|
* these are namerserver rrsets that failed lookup, rdata empty */
|
|
if((k->rk.flags & PACKED_RRSET_PARENT_SIDE) && d->count == 1 &&
|
|
d->rrsig_count == 0 && d->rr_len[0] == 0) {
|
|
d->ttl = inf->expired;
|
|
inf->num_rrsets++;
|
|
}
|
|
}
|
|
|
|
/** callback to delete negative and servfail messages */
|
|
static void
|
|
negative_del_msg(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct reply_info* d = (struct reply_info*)e->data;
|
|
/* rcode not NOERROR: NXDOMAIN, SERVFAIL, ..: an nxdomain or error
|
|
* or NOERROR rcode with ANCOUNT==0: a NODATA answer */
|
|
if(FLAGS_GET_RCODE(d->flags) != 0 || d->an_numrrsets == 0) {
|
|
d->ttl = inf->expired;
|
|
inf->num_msgs++;
|
|
}
|
|
}
|
|
|
|
/** callback to delete negative key entries */
|
|
static void
|
|
negative_del_kcache(struct lruhash_entry* e, void* arg)
|
|
{
|
|
/* entry is locked */
|
|
struct del_info* inf = (struct del_info*)arg;
|
|
struct key_entry_data* d = (struct key_entry_data*)e->data;
|
|
/* could be bad because of lookup failure on the DS, DNSKEY, which
|
|
* was nxdomain or servfail, and thus a result of negative lookups */
|
|
if(d->isbad) {
|
|
d->ttl = inf->expired;
|
|
inf->num_keys++;
|
|
}
|
|
}
|
|
|
|
/** remove all negative(NODATA,NXDOMAIN), and servfail messages from cache */
|
|
static void
|
|
do_flush_negative(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct del_info inf;
|
|
/* what we do is to set them all expired */
|
|
inf.worker = worker;
|
|
inf.now = *worker->env.now;
|
|
inf.expired = *worker->env.now;
|
|
inf.expired -= 3; /* handle 3 seconds skew between threads */
|
|
inf.num_rrsets = 0;
|
|
inf.num_msgs = 0;
|
|
inf.num_keys = 0;
|
|
slabhash_traverse(&worker->env.rrset_cache->table, 1,
|
|
&negative_del_rrset, &inf);
|
|
|
|
slabhash_traverse(worker->env.msg_cache, 1, &negative_del_msg, &inf);
|
|
|
|
/* and validator cache */
|
|
if(worker->env.key_cache) {
|
|
slabhash_traverse(worker->env.key_cache->slab, 1,
|
|
&negative_del_kcache, &inf);
|
|
}
|
|
|
|
(void)ssl_printf(ssl, "ok removed %lu rrsets, %lu messages "
|
|
"and %lu key entries\n", (unsigned long)inf.num_rrsets,
|
|
(unsigned long)inf.num_msgs, (unsigned long)inf.num_keys);
|
|
}
|
|
|
|
/** remove name rrset from cache */
|
|
static void
|
|
do_flush_name(SSL* ssl, struct worker* w, char* arg)
|
|
{
|
|
uint8_t* nm;
|
|
int nmlabs;
|
|
size_t nmlen;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_A, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_AAAA, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_NS, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_SOA, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_CNAME, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_DNAME, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_MX, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_PTR, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_SRV, LDNS_RR_CLASS_IN);
|
|
do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_NAPTR, LDNS_RR_CLASS_IN);
|
|
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** printout a delegation point info */
|
|
static int
|
|
ssl_print_name_dp(SSL* ssl, const char* str, uint8_t* nm, uint16_t dclass,
|
|
struct delegpt* dp)
|
|
{
|
|
char buf[257];
|
|
struct delegpt_ns* ns;
|
|
struct delegpt_addr* a;
|
|
int f = 0;
|
|
if(str) { /* print header for forward, stub */
|
|
char* c = sldns_wire2str_class(dclass);
|
|
dname_str(nm, buf);
|
|
if(!ssl_printf(ssl, "%s %s %s ", buf, (c?c:"CLASS??"), str)) {
|
|
free(c);
|
|
return 0;
|
|
}
|
|
free(c);
|
|
}
|
|
for(ns = dp->nslist; ns; ns = ns->next) {
|
|
dname_str(ns->name, buf);
|
|
if(!ssl_printf(ssl, "%s%s", (f?" ":""), buf))
|
|
return 0;
|
|
f = 1;
|
|
}
|
|
for(a = dp->target_list; a; a = a->next_target) {
|
|
addr_to_str(&a->addr, a->addrlen, buf, sizeof(buf));
|
|
if(!ssl_printf(ssl, "%s%s", (f?" ":""), buf))
|
|
return 0;
|
|
f = 1;
|
|
}
|
|
return ssl_printf(ssl, "\n");
|
|
}
|
|
|
|
|
|
/** print root forwards */
|
|
static int
|
|
print_root_fwds(SSL* ssl, struct iter_forwards* fwds, uint8_t* root)
|
|
{
|
|
struct delegpt* dp;
|
|
dp = forwards_lookup(fwds, root, LDNS_RR_CLASS_IN);
|
|
if(!dp)
|
|
return ssl_printf(ssl, "off (using root hints)\n");
|
|
/* if dp is returned it must be the root */
|
|
log_assert(query_dname_compare(dp->name, root)==0);
|
|
return ssl_print_name_dp(ssl, NULL, root, LDNS_RR_CLASS_IN, dp);
|
|
}
|
|
|
|
/** parse args into delegpt */
|
|
static struct delegpt*
|
|
parse_delegpt(SSL* ssl, char* args, uint8_t* nm, int allow_names)
|
|
{
|
|
/* parse args and add in */
|
|
char* p = args;
|
|
char* todo;
|
|
struct delegpt* dp = delegpt_create_mlc(nm);
|
|
struct sockaddr_storage addr;
|
|
socklen_t addrlen;
|
|
if(!dp) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
return NULL;
|
|
}
|
|
while(p) {
|
|
todo = p;
|
|
p = strchr(p, ' '); /* find next spot, if any */
|
|
if(p) {
|
|
*p++ = 0; /* end this spot */
|
|
p = skipwhite(p); /* position at next spot */
|
|
}
|
|
/* parse address */
|
|
if(!extstrtoaddr(todo, &addr, &addrlen)) {
|
|
if(allow_names) {
|
|
uint8_t* n = NULL;
|
|
size_t ln;
|
|
int lb;
|
|
if(!parse_arg_name(ssl, todo, &n, &ln, &lb)) {
|
|
(void)ssl_printf(ssl, "error cannot "
|
|
"parse IP address or name "
|
|
"'%s'\n", todo);
|
|
delegpt_free_mlc(dp);
|
|
return NULL;
|
|
}
|
|
if(!delegpt_add_ns_mlc(dp, n, 0)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
free(n);
|
|
delegpt_free_mlc(dp);
|
|
return NULL;
|
|
}
|
|
free(n);
|
|
|
|
} else {
|
|
(void)ssl_printf(ssl, "error cannot parse"
|
|
" IP address '%s'\n", todo);
|
|
delegpt_free_mlc(dp);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
/* add address */
|
|
if(!delegpt_add_addr_mlc(dp, &addr, addrlen, 0, 0)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
delegpt_free_mlc(dp);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
return dp;
|
|
}
|
|
|
|
/** do the status command */
|
|
static void
|
|
do_forward(SSL* ssl, struct worker* worker, char* args)
|
|
{
|
|
struct iter_forwards* fwd = worker->env.fwds;
|
|
uint8_t* root = (uint8_t*)"\000";
|
|
if(!fwd) {
|
|
(void)ssl_printf(ssl, "error: structure not allocated\n");
|
|
return;
|
|
}
|
|
if(args == NULL || args[0] == 0) {
|
|
(void)print_root_fwds(ssl, fwd, root);
|
|
return;
|
|
}
|
|
/* set root forwards for this thread. since we are in remote control
|
|
* the actual mesh is not running, so we can freely edit it. */
|
|
/* delete all the existing queries first */
|
|
mesh_delete_all(worker->env.mesh);
|
|
if(strcmp(args, "off") == 0) {
|
|
forwards_delete_zone(fwd, LDNS_RR_CLASS_IN, root);
|
|
} else {
|
|
struct delegpt* dp;
|
|
if(!(dp = parse_delegpt(ssl, args, root, 0)))
|
|
return;
|
|
if(!forwards_add_zone(fwd, LDNS_RR_CLASS_IN, dp)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
return;
|
|
}
|
|
}
|
|
send_ok(ssl);
|
|
}
|
|
|
|
static int
|
|
parse_fs_args(SSL* ssl, char* args, uint8_t** nm, struct delegpt** dp,
|
|
int* insecure, int* prime)
|
|
{
|
|
char* zonename;
|
|
char* rest;
|
|
size_t nmlen;
|
|
int nmlabs;
|
|
/* parse all -x args */
|
|
while(args[0] == '+') {
|
|
if(!find_arg2(ssl, args, &rest))
|
|
return 0;
|
|
while(*(++args) != 0) {
|
|
if(*args == 'i' && insecure)
|
|
*insecure = 1;
|
|
else if(*args == 'p' && prime)
|
|
*prime = 1;
|
|
else {
|
|
(void)ssl_printf(ssl, "error: unknown option %s\n", args);
|
|
return 0;
|
|
}
|
|
}
|
|
args = rest;
|
|
}
|
|
/* parse name */
|
|
if(dp) {
|
|
if(!find_arg2(ssl, args, &rest))
|
|
return 0;
|
|
zonename = args;
|
|
args = rest;
|
|
} else zonename = args;
|
|
if(!parse_arg_name(ssl, zonename, nm, &nmlen, &nmlabs))
|
|
return 0;
|
|
|
|
/* parse dp */
|
|
if(dp) {
|
|
if(!(*dp = parse_delegpt(ssl, args, *nm, 1))) {
|
|
free(*nm);
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/** do the forward_add command */
|
|
static void
|
|
do_forward_add(SSL* ssl, struct worker* worker, char* args)
|
|
{
|
|
struct iter_forwards* fwd = worker->env.fwds;
|
|
int insecure = 0;
|
|
uint8_t* nm = NULL;
|
|
struct delegpt* dp = NULL;
|
|
if(!parse_fs_args(ssl, args, &nm, &dp, &insecure, NULL))
|
|
return;
|
|
if(insecure && worker->env.anchors) {
|
|
if(!anchors_add_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
|
|
nm)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
delegpt_free_mlc(dp);
|
|
free(nm);
|
|
return;
|
|
}
|
|
}
|
|
if(!forwards_add_zone(fwd, LDNS_RR_CLASS_IN, dp)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
free(nm);
|
|
return;
|
|
}
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the forward_remove command */
|
|
static void
|
|
do_forward_remove(SSL* ssl, struct worker* worker, char* args)
|
|
{
|
|
struct iter_forwards* fwd = worker->env.fwds;
|
|
int insecure = 0;
|
|
uint8_t* nm = NULL;
|
|
if(!parse_fs_args(ssl, args, &nm, NULL, &insecure, NULL))
|
|
return;
|
|
if(insecure && worker->env.anchors)
|
|
anchors_delete_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
|
|
nm);
|
|
forwards_delete_zone(fwd, LDNS_RR_CLASS_IN, nm);
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the stub_add command */
|
|
static void
|
|
do_stub_add(SSL* ssl, struct worker* worker, char* args)
|
|
{
|
|
struct iter_forwards* fwd = worker->env.fwds;
|
|
int insecure = 0, prime = 0;
|
|
uint8_t* nm = NULL;
|
|
struct delegpt* dp = NULL;
|
|
if(!parse_fs_args(ssl, args, &nm, &dp, &insecure, &prime))
|
|
return;
|
|
if(insecure && worker->env.anchors) {
|
|
if(!anchors_add_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
|
|
nm)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
delegpt_free_mlc(dp);
|
|
free(nm);
|
|
return;
|
|
}
|
|
}
|
|
if(!forwards_add_stub_hole(fwd, LDNS_RR_CLASS_IN, nm)) {
|
|
if(insecure && worker->env.anchors)
|
|
anchors_delete_insecure(worker->env.anchors,
|
|
LDNS_RR_CLASS_IN, nm);
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
delegpt_free_mlc(dp);
|
|
free(nm);
|
|
return;
|
|
}
|
|
if(!hints_add_stub(worker->env.hints, LDNS_RR_CLASS_IN, dp, !prime)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
forwards_delete_stub_hole(fwd, LDNS_RR_CLASS_IN, nm);
|
|
if(insecure && worker->env.anchors)
|
|
anchors_delete_insecure(worker->env.anchors,
|
|
LDNS_RR_CLASS_IN, nm);
|
|
free(nm);
|
|
return;
|
|
}
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the stub_remove command */
|
|
static void
|
|
do_stub_remove(SSL* ssl, struct worker* worker, char* args)
|
|
{
|
|
struct iter_forwards* fwd = worker->env.fwds;
|
|
int insecure = 0;
|
|
uint8_t* nm = NULL;
|
|
if(!parse_fs_args(ssl, args, &nm, NULL, &insecure, NULL))
|
|
return;
|
|
if(insecure && worker->env.anchors)
|
|
anchors_delete_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
|
|
nm);
|
|
forwards_delete_stub_hole(fwd, LDNS_RR_CLASS_IN, nm);
|
|
hints_delete_stub(worker->env.hints, LDNS_RR_CLASS_IN, nm);
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the insecure_add command */
|
|
static void
|
|
do_insecure_add(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
size_t nmlen;
|
|
int nmlabs;
|
|
uint8_t* nm = NULL;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
if(worker->env.anchors) {
|
|
if(!anchors_add_insecure(worker->env.anchors,
|
|
LDNS_RR_CLASS_IN, nm)) {
|
|
(void)ssl_printf(ssl, "error out of memory\n");
|
|
free(nm);
|
|
return;
|
|
}
|
|
}
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the insecure_remove command */
|
|
static void
|
|
do_insecure_remove(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
size_t nmlen;
|
|
int nmlabs;
|
|
uint8_t* nm = NULL;
|
|
if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
|
|
return;
|
|
if(worker->env.anchors)
|
|
anchors_delete_insecure(worker->env.anchors,
|
|
LDNS_RR_CLASS_IN, nm);
|
|
free(nm);
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/** do the status command */
|
|
static void
|
|
do_status(SSL* ssl, struct worker* worker)
|
|
{
|
|
int i;
|
|
time_t uptime;
|
|
if(!ssl_printf(ssl, "version: %s\n", PACKAGE_VERSION))
|
|
return;
|
|
if(!ssl_printf(ssl, "verbosity: %d\n", verbosity))
|
|
return;
|
|
if(!ssl_printf(ssl, "threads: %d\n", worker->daemon->num))
|
|
return;
|
|
if(!ssl_printf(ssl, "modules: %d [", worker->daemon->mods.num))
|
|
return;
|
|
for(i=0; i<worker->daemon->mods.num; i++) {
|
|
if(!ssl_printf(ssl, " %s", worker->daemon->mods.mod[i]->name))
|
|
return;
|
|
}
|
|
if(!ssl_printf(ssl, " ]\n"))
|
|
return;
|
|
uptime = (time_t)time(NULL) - (time_t)worker->daemon->time_boot.tv_sec;
|
|
if(!ssl_printf(ssl, "uptime: " ARG_LL "d seconds\n", (long long)uptime))
|
|
return;
|
|
if(!ssl_printf(ssl, "options:%s%s\n" ,
|
|
(worker->daemon->reuseport?" reuseport":""),
|
|
(worker->daemon->rc->accept_list?" control(ssl)":"")))
|
|
return;
|
|
if(!ssl_printf(ssl, "unbound (pid %d) is running...\n",
|
|
(int)getpid()))
|
|
return;
|
|
}
|
|
|
|
/** get age for the mesh state */
|
|
static void
|
|
get_mesh_age(struct mesh_state* m, char* buf, size_t len,
|
|
struct module_env* env)
|
|
{
|
|
if(m->reply_list) {
|
|
struct timeval d;
|
|
struct mesh_reply* r = m->reply_list;
|
|
/* last reply is the oldest */
|
|
while(r && r->next)
|
|
r = r->next;
|
|
timeval_subtract(&d, env->now_tv, &r->start_time);
|
|
snprintf(buf, len, ARG_LL "d.%6.6d",
|
|
(long long)d.tv_sec, (int)d.tv_usec);
|
|
} else {
|
|
snprintf(buf, len, "-");
|
|
}
|
|
}
|
|
|
|
/** get status of a mesh state */
|
|
static void
|
|
get_mesh_status(struct mesh_area* mesh, struct mesh_state* m,
|
|
char* buf, size_t len)
|
|
{
|
|
enum module_ext_state s = m->s.ext_state[m->s.curmod];
|
|
const char *modname = mesh->mods.mod[m->s.curmod]->name;
|
|
size_t l;
|
|
if(strcmp(modname, "iterator") == 0 && s == module_wait_reply &&
|
|
m->s.minfo[m->s.curmod]) {
|
|
/* break into iterator to find out who its waiting for */
|
|
struct iter_qstate* qstate = (struct iter_qstate*)
|
|
m->s.minfo[m->s.curmod];
|
|
struct outbound_list* ol = &qstate->outlist;
|
|
struct outbound_entry* e;
|
|
snprintf(buf, len, "%s wait for", modname);
|
|
l = strlen(buf);
|
|
buf += l; len -= l;
|
|
if(ol->first == NULL)
|
|
snprintf(buf, len, " (empty_list)");
|
|
for(e = ol->first; e; e = e->next) {
|
|
snprintf(buf, len, " ");
|
|
l = strlen(buf);
|
|
buf += l; len -= l;
|
|
addr_to_str(&e->qsent->addr, e->qsent->addrlen,
|
|
buf, len);
|
|
l = strlen(buf);
|
|
buf += l; len -= l;
|
|
}
|
|
} else if(s == module_wait_subquery) {
|
|
/* look in subs from mesh state to see what */
|
|
char nm[257];
|
|
struct mesh_state_ref* sub;
|
|
snprintf(buf, len, "%s wants", modname);
|
|
l = strlen(buf);
|
|
buf += l; len -= l;
|
|
if(m->sub_set.count == 0)
|
|
snprintf(buf, len, " (empty_list)");
|
|
RBTREE_FOR(sub, struct mesh_state_ref*, &m->sub_set) {
|
|
char* t = sldns_wire2str_type(sub->s->s.qinfo.qtype);
|
|
char* c = sldns_wire2str_class(sub->s->s.qinfo.qclass);
|
|
dname_str(sub->s->s.qinfo.qname, nm);
|
|
snprintf(buf, len, " %s %s %s", (t?t:"TYPE??"),
|
|
(c?c:"CLASS??"), nm);
|
|
l = strlen(buf);
|
|
buf += l; len -= l;
|
|
free(t);
|
|
free(c);
|
|
}
|
|
} else {
|
|
snprintf(buf, len, "%s is %s", modname, strextstate(s));
|
|
}
|
|
}
|
|
|
|
/** do the dump_requestlist command */
|
|
static void
|
|
do_dump_requestlist(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct mesh_area* mesh;
|
|
struct mesh_state* m;
|
|
int num = 0;
|
|
char buf[257];
|
|
char timebuf[32];
|
|
char statbuf[10240];
|
|
if(!ssl_printf(ssl, "thread #%d\n", worker->thread_num))
|
|
return;
|
|
if(!ssl_printf(ssl, "# type cl name seconds module status\n"))
|
|
return;
|
|
/* show worker mesh contents */
|
|
mesh = worker->env.mesh;
|
|
if(!mesh) return;
|
|
RBTREE_FOR(m, struct mesh_state*, &mesh->all) {
|
|
char* t = sldns_wire2str_type(m->s.qinfo.qtype);
|
|
char* c = sldns_wire2str_class(m->s.qinfo.qclass);
|
|
dname_str(m->s.qinfo.qname, buf);
|
|
get_mesh_age(m, timebuf, sizeof(timebuf), &worker->env);
|
|
get_mesh_status(mesh, m, statbuf, sizeof(statbuf));
|
|
if(!ssl_printf(ssl, "%3d %4s %2s %s %s %s\n",
|
|
num, (t?t:"TYPE??"), (c?c:"CLASS??"), buf, timebuf,
|
|
statbuf)) {
|
|
free(t);
|
|
free(c);
|
|
return;
|
|
}
|
|
num++;
|
|
free(t);
|
|
free(c);
|
|
}
|
|
}
|
|
|
|
/** structure for argument data for dump infra host */
|
|
struct infra_arg {
|
|
/** the infra cache */
|
|
struct infra_cache* infra;
|
|
/** the SSL connection */
|
|
SSL* ssl;
|
|
/** the time now */
|
|
time_t now;
|
|
/** ssl failure? stop writing and skip the rest. If the tcp
|
|
* connection is broken, and writes fail, we then stop writing. */
|
|
int ssl_failed;
|
|
};
|
|
|
|
/** callback for every host element in the infra cache */
|
|
static void
|
|
dump_infra_host(struct lruhash_entry* e, void* arg)
|
|
{
|
|
struct infra_arg* a = (struct infra_arg*)arg;
|
|
struct infra_key* k = (struct infra_key*)e->key;
|
|
struct infra_data* d = (struct infra_data*)e->data;
|
|
char ip_str[1024];
|
|
char name[257];
|
|
if(a->ssl_failed)
|
|
return;
|
|
addr_to_str(&k->addr, k->addrlen, ip_str, sizeof(ip_str));
|
|
dname_str(k->zonename, name);
|
|
/* skip expired stuff (only backed off) */
|
|
if(d->ttl < a->now) {
|
|
if(d->rtt.rto >= USEFUL_SERVER_TOP_TIMEOUT) {
|
|
if(!ssl_printf(a->ssl, "%s %s expired rto %d\n", ip_str,
|
|
name, d->rtt.rto)) {
|
|
a->ssl_failed = 1;
|
|
return;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
if(!ssl_printf(a->ssl, "%s %s ttl %lu ping %d var %d rtt %d rto %d "
|
|
"tA %d tAAAA %d tother %d "
|
|
"ednsknown %d edns %d delay %d lame dnssec %d rec %d A %d "
|
|
"other %d\n", ip_str, name, (unsigned long)(d->ttl - a->now),
|
|
d->rtt.srtt, d->rtt.rttvar, rtt_notimeout(&d->rtt), d->rtt.rto,
|
|
d->timeout_A, d->timeout_AAAA, d->timeout_other,
|
|
(int)d->edns_lame_known, (int)d->edns_version,
|
|
(int)(a->now<d->probedelay?(d->probedelay - a->now):0),
|
|
(int)d->isdnsseclame, (int)d->rec_lame, (int)d->lame_type_A,
|
|
(int)d->lame_other)) {
|
|
a->ssl_failed = 1;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/** do the dump_infra command */
|
|
static void
|
|
do_dump_infra(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct infra_arg arg;
|
|
arg.infra = worker->env.infra_cache;
|
|
arg.ssl = ssl;
|
|
arg.now = *worker->env.now;
|
|
arg.ssl_failed = 0;
|
|
slabhash_traverse(arg.infra->hosts, 0, &dump_infra_host, (void*)&arg);
|
|
}
|
|
|
|
/** do the log_reopen command */
|
|
static void
|
|
do_log_reopen(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct config_file* cfg = worker->env.cfg;
|
|
send_ok(ssl);
|
|
log_init(cfg->logfile, cfg->use_syslog, cfg->chrootdir);
|
|
}
|
|
|
|
/** do the set_option command */
|
|
static void
|
|
do_set_option(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
char* arg2;
|
|
if(!find_arg2(ssl, arg, &arg2))
|
|
return;
|
|
if(!config_set_option(worker->env.cfg, arg, arg2)) {
|
|
(void)ssl_printf(ssl, "error setting option\n");
|
|
return;
|
|
}
|
|
send_ok(ssl);
|
|
}
|
|
|
|
/* routine to printout option values over SSL */
|
|
void remote_get_opt_ssl(char* line, void* arg)
|
|
{
|
|
SSL* ssl = (SSL*)arg;
|
|
(void)ssl_printf(ssl, "%s\n", line);
|
|
}
|
|
|
|
/** do the get_option command */
|
|
static void
|
|
do_get_option(SSL* ssl, struct worker* worker, char* arg)
|
|
{
|
|
int r;
|
|
r = config_get_option(worker->env.cfg, arg, remote_get_opt_ssl, ssl);
|
|
if(!r) {
|
|
(void)ssl_printf(ssl, "error unknown option\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
/** do the list_forwards command */
|
|
static void
|
|
do_list_forwards(SSL* ssl, struct worker* worker)
|
|
{
|
|
/* since its a per-worker structure no locks needed */
|
|
struct iter_forwards* fwds = worker->env.fwds;
|
|
struct iter_forward_zone* z;
|
|
struct trust_anchor* a;
|
|
int insecure;
|
|
RBTREE_FOR(z, struct iter_forward_zone*, fwds->tree) {
|
|
if(!z->dp) continue; /* skip empty marker for stub */
|
|
|
|
/* see if it is insecure */
|
|
insecure = 0;
|
|
if(worker->env.anchors &&
|
|
(a=anchor_find(worker->env.anchors, z->name,
|
|
z->namelabs, z->namelen, z->dclass))) {
|
|
if(!a->keylist && !a->numDS && !a->numDNSKEY)
|
|
insecure = 1;
|
|
lock_basic_unlock(&a->lock);
|
|
}
|
|
|
|
if(!ssl_print_name_dp(ssl, (insecure?"forward +i":"forward"),
|
|
z->name, z->dclass, z->dp))
|
|
return;
|
|
}
|
|
}
|
|
|
|
/** do the list_stubs command */
|
|
static void
|
|
do_list_stubs(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct iter_hints_stub* z;
|
|
struct trust_anchor* a;
|
|
int insecure;
|
|
char str[32];
|
|
RBTREE_FOR(z, struct iter_hints_stub*, &worker->env.hints->tree) {
|
|
|
|
/* see if it is insecure */
|
|
insecure = 0;
|
|
if(worker->env.anchors &&
|
|
(a=anchor_find(worker->env.anchors, z->node.name,
|
|
z->node.labs, z->node.len, z->node.dclass))) {
|
|
if(!a->keylist && !a->numDS && !a->numDNSKEY)
|
|
insecure = 1;
|
|
lock_basic_unlock(&a->lock);
|
|
}
|
|
|
|
snprintf(str, sizeof(str), "stub %sprime%s",
|
|
(z->noprime?"no":""), (insecure?" +i":""));
|
|
if(!ssl_print_name_dp(ssl, str, z->node.name,
|
|
z->node.dclass, z->dp))
|
|
return;
|
|
}
|
|
}
|
|
|
|
/** do the list_local_zones command */
|
|
static void
|
|
do_list_local_zones(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct local_zones* zones = worker->daemon->local_zones;
|
|
struct local_zone* z;
|
|
char buf[257];
|
|
lock_rw_rdlock(&zones->lock);
|
|
RBTREE_FOR(z, struct local_zone*, &zones->ztree) {
|
|
lock_rw_rdlock(&z->lock);
|
|
dname_str(z->name, buf);
|
|
if(!ssl_printf(ssl, "%s %s\n", buf,
|
|
local_zone_type2str(z->type))) {
|
|
/* failure to print */
|
|
lock_rw_unlock(&z->lock);
|
|
lock_rw_unlock(&zones->lock);
|
|
return;
|
|
}
|
|
lock_rw_unlock(&z->lock);
|
|
}
|
|
lock_rw_unlock(&zones->lock);
|
|
}
|
|
|
|
/** do the list_local_data command */
|
|
static void
|
|
do_list_local_data(SSL* ssl, struct worker* worker)
|
|
{
|
|
struct local_zones* zones = worker->daemon->local_zones;
|
|
struct local_zone* z;
|
|
struct local_data* d;
|
|
struct local_rrset* p;
|
|
char* s = (char*)sldns_buffer_begin(worker->env.scratch_buffer);
|
|
size_t slen = sldns_buffer_capacity(worker->env.scratch_buffer);
|
|
lock_rw_rdlock(&zones->lock);
|
|
RBTREE_FOR(z, struct local_zone*, &zones->ztree) {
|
|
lock_rw_rdlock(&z->lock);
|
|
RBTREE_FOR(d, struct local_data*, &z->data) {
|
|
for(p = d->rrsets; p; p = p->next) {
|
|
struct packed_rrset_data* d =
|
|
(struct packed_rrset_data*)p->rrset->entry.data;
|
|
size_t i;
|
|
for(i=0; i<d->count + d->rrsig_count; i++) {
|
|
if(!packed_rr_to_string(p->rrset, i,
|
|
0, s, slen)) {
|
|
if(!ssl_printf(ssl, "BADRR\n"))
|
|
return;
|
|
}
|
|
if(!ssl_printf(ssl, "%s\n", s))
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
lock_rw_unlock(&z->lock);
|
|
}
|
|
lock_rw_unlock(&zones->lock);
|
|
}
|
|
|
|
/** tell other processes to execute the command */
|
|
static void
|
|
distribute_cmd(struct daemon_remote* rc, SSL* ssl, char* cmd)
|
|
{
|
|
int i;
|
|
if(!cmd || !ssl)
|
|
return;
|
|
/* skip i=0 which is me */
|
|
for(i=1; i<rc->worker->daemon->num; i++) {
|
|
worker_send_cmd(rc->worker->daemon->workers[i],
|
|
worker_cmd_remote);
|
|
if(!tube_write_msg(rc->worker->daemon->workers[i]->cmd,
|
|
(uint8_t*)cmd, strlen(cmd)+1, 0)) {
|
|
ssl_printf(ssl, "error could not distribute cmd\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/** check for name with end-of-string, space or tab after it */
|
|
static int
|
|
cmdcmp(char* p, const char* cmd, size_t len)
|
|
{
|
|
return strncmp(p,cmd,len)==0 && (p[len]==0||p[len]==' '||p[len]=='\t');
|
|
}
|
|
|
|
/** execute a remote control command */
|
|
static void
|
|
execute_cmd(struct daemon_remote* rc, SSL* ssl, char* cmd,
|
|
struct worker* worker)
|
|
{
|
|
char* p = skipwhite(cmd);
|
|
/* compare command */
|
|
if(cmdcmp(p, "stop", 4)) {
|
|
do_stop(ssl, rc);
|
|
return;
|
|
} else if(cmdcmp(p, "reload", 6)) {
|
|
do_reload(ssl, rc);
|
|
return;
|
|
} else if(cmdcmp(p, "stats_noreset", 13)) {
|
|
do_stats(ssl, rc, 0);
|
|
return;
|
|
} else if(cmdcmp(p, "stats", 5)) {
|
|
do_stats(ssl, rc, 1);
|
|
return;
|
|
} else if(cmdcmp(p, "status", 6)) {
|
|
do_status(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "dump_cache", 10)) {
|
|
(void)dump_cache(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "load_cache", 10)) {
|
|
if(load_cache(ssl, worker)) send_ok(ssl);
|
|
return;
|
|
} else if(cmdcmp(p, "list_forwards", 13)) {
|
|
do_list_forwards(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "list_stubs", 10)) {
|
|
do_list_stubs(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "list_local_zones", 16)) {
|
|
do_list_local_zones(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "list_local_data", 15)) {
|
|
do_list_local_data(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "stub_add", 8)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_stub_add(ssl, worker, skipwhite(p+8));
|
|
return;
|
|
} else if(cmdcmp(p, "stub_remove", 11)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_stub_remove(ssl, worker, skipwhite(p+11));
|
|
return;
|
|
} else if(cmdcmp(p, "forward_add", 11)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_forward_add(ssl, worker, skipwhite(p+11));
|
|
return;
|
|
} else if(cmdcmp(p, "forward_remove", 14)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_forward_remove(ssl, worker, skipwhite(p+14));
|
|
return;
|
|
} else if(cmdcmp(p, "insecure_add", 12)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_insecure_add(ssl, worker, skipwhite(p+12));
|
|
return;
|
|
} else if(cmdcmp(p, "insecure_remove", 15)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_insecure_remove(ssl, worker, skipwhite(p+15));
|
|
return;
|
|
} else if(cmdcmp(p, "forward", 7)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_forward(ssl, worker, skipwhite(p+7));
|
|
return;
|
|
} else if(cmdcmp(p, "flush_stats", 11)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_flush_stats(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "flush_requestlist", 17)) {
|
|
/* must always distribute this cmd */
|
|
if(rc) distribute_cmd(rc, ssl, cmd);
|
|
do_flush_requestlist(ssl, worker);
|
|
return;
|
|
} else if(cmdcmp(p, "lookup", 6)) {
|
|
do_lookup(ssl, worker, skipwhite(p+6));
|
|
return;
|
|
}
|
|
|
|
#ifdef THREADS_DISABLED
|
|
/* other processes must execute the command as well */
|
|
/* commands that should not be distributed, returned above. */
|
|
if(rc) { /* only if this thread is the master (rc) thread */
|
|
/* done before the code below, which may split the string */
|
|
distribute_cmd(rc, ssl, cmd);
|
|
}
|
|
#endif
|
|
if(cmdcmp(p, "verbosity", 9)) {
|
|
do_verbosity(ssl, skipwhite(p+9));
|
|
} else if(cmdcmp(p, "local_zone_remove", 17)) {
|
|
do_zone_remove(ssl, worker, skipwhite(p+17));
|
|
} else if(cmdcmp(p, "local_zone", 10)) {
|
|
do_zone_add(ssl, worker, skipwhite(p+10));
|
|
} else if(cmdcmp(p, "local_data_remove", 17)) {
|
|
do_data_remove(ssl, worker, skipwhite(p+17));
|
|
} else if(cmdcmp(p, "local_data", 10)) {
|
|
do_data_add(ssl, worker, skipwhite(p+10));
|
|
} else if(cmdcmp(p, "flush_zone", 10)) {
|
|
do_flush_zone(ssl, worker, skipwhite(p+10));
|
|
} else if(cmdcmp(p, "flush_type", 10)) {
|
|
do_flush_type(ssl, worker, skipwhite(p+10));
|
|
} else if(cmdcmp(p, "flush_infra", 11)) {
|
|
do_flush_infra(ssl, worker, skipwhite(p+11));
|
|
} else if(cmdcmp(p, "flush", 5)) {
|
|
do_flush_name(ssl, worker, skipwhite(p+5));
|
|
} else if(cmdcmp(p, "dump_requestlist", 16)) {
|
|
do_dump_requestlist(ssl, worker);
|
|
} else if(cmdcmp(p, "dump_infra", 10)) {
|
|
do_dump_infra(ssl, worker);
|
|
} else if(cmdcmp(p, "log_reopen", 10)) {
|
|
do_log_reopen(ssl, worker);
|
|
} else if(cmdcmp(p, "set_option", 10)) {
|
|
do_set_option(ssl, worker, skipwhite(p+10));
|
|
} else if(cmdcmp(p, "get_option", 10)) {
|
|
do_get_option(ssl, worker, skipwhite(p+10));
|
|
} else if(cmdcmp(p, "flush_bogus", 11)) {
|
|
do_flush_bogus(ssl, worker);
|
|
} else if(cmdcmp(p, "flush_negative", 14)) {
|
|
do_flush_negative(ssl, worker);
|
|
} else {
|
|
(void)ssl_printf(ssl, "error unknown command '%s'\n", p);
|
|
}
|
|
}
|
|
|
|
void
|
|
daemon_remote_exec(struct worker* worker)
|
|
{
|
|
/* read the cmd string */
|
|
uint8_t* msg = NULL;
|
|
uint32_t len = 0;
|
|
if(!tube_read_msg(worker->cmd, &msg, &len, 0)) {
|
|
log_err("daemon_remote_exec: tube_read_msg failed");
|
|
return;
|
|
}
|
|
verbose(VERB_ALGO, "remote exec distributed: %s", (char*)msg);
|
|
execute_cmd(NULL, NULL, (char*)msg, worker);
|
|
free(msg);
|
|
}
|
|
|
|
/** handle remote control request */
|
|
static void
|
|
handle_req(struct daemon_remote* rc, struct rc_state* s, SSL* ssl)
|
|
{
|
|
int r;
|
|
char pre[10];
|
|
char magic[7];
|
|
char buf[1024];
|
|
#ifdef USE_WINSOCK
|
|
/* makes it possible to set the socket blocking again. */
|
|
/* basically removes it from winsock_event ... */
|
|
WSAEventSelect(s->c->fd, NULL, 0);
|
|
#endif
|
|
fd_set_block(s->c->fd);
|
|
|
|
/* try to read magic UBCT[version]_space_ string */
|
|
ERR_clear_error();
|
|
if((r=SSL_read(ssl, magic, (int)sizeof(magic)-1)) <= 0) {
|
|
if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN)
|
|
return;
|
|
log_crypto_err("could not SSL_read");
|
|
return;
|
|
}
|
|
magic[6] = 0;
|
|
if( r != 6 || strncmp(magic, "UBCT", 4) != 0) {
|
|
verbose(VERB_QUERY, "control connection has bad magic string");
|
|
/* probably wrong tool connected, ignore it completely */
|
|
return;
|
|
}
|
|
|
|
/* read the command line */
|
|
if(!ssl_read_line(ssl, buf, sizeof(buf))) {
|
|
return;
|
|
}
|
|
snprintf(pre, sizeof(pre), "UBCT%d ", UNBOUND_CONTROL_VERSION);
|
|
if(strcmp(magic, pre) != 0) {
|
|
verbose(VERB_QUERY, "control connection had bad "
|
|
"version %s, cmd: %s", magic, buf);
|
|
ssl_printf(ssl, "error version mismatch\n");
|
|
return;
|
|
}
|
|
verbose(VERB_DETAIL, "control cmd: %s", buf);
|
|
|
|
/* figure out what to do */
|
|
execute_cmd(rc, ssl, buf, rc->worker);
|
|
}
|
|
|
|
int remote_control_callback(struct comm_point* c, void* arg, int err,
|
|
struct comm_reply* ATTR_UNUSED(rep))
|
|
{
|
|
struct rc_state* s = (struct rc_state*)arg;
|
|
struct daemon_remote* rc = s->rc;
|
|
int r;
|
|
if(err != NETEVENT_NOERROR) {
|
|
if(err==NETEVENT_TIMEOUT)
|
|
log_err("remote control timed out");
|
|
clean_point(rc, s);
|
|
return 0;
|
|
}
|
|
/* (continue to) setup the SSL connection */
|
|
ERR_clear_error();
|
|
r = SSL_do_handshake(s->ssl);
|
|
if(r != 1) {
|
|
int r2 = SSL_get_error(s->ssl, r);
|
|
if(r2 == SSL_ERROR_WANT_READ) {
|
|
if(s->shake_state == rc_hs_read) {
|
|
/* try again later */
|
|
return 0;
|
|
}
|
|
s->shake_state = rc_hs_read;
|
|
comm_point_listen_for_rw(c, 1, 0);
|
|
return 0;
|
|
} else if(r2 == SSL_ERROR_WANT_WRITE) {
|
|
if(s->shake_state == rc_hs_write) {
|
|
/* try again later */
|
|
return 0;
|
|
}
|
|
s->shake_state = rc_hs_write;
|
|
comm_point_listen_for_rw(c, 0, 1);
|
|
return 0;
|
|
} else {
|
|
if(r == 0)
|
|
log_err("remote control connection closed prematurely");
|
|
log_addr(1, "failed connection from",
|
|
&s->c->repinfo.addr, s->c->repinfo.addrlen);
|
|
log_crypto_err("remote control failed ssl");
|
|
clean_point(rc, s);
|
|
return 0;
|
|
}
|
|
}
|
|
s->shake_state = rc_none;
|
|
|
|
/* once handshake has completed, check authentication */
|
|
if (!rc->use_cert) {
|
|
verbose(VERB_ALGO, "unauthenticated remote control connection");
|
|
} else if(SSL_get_verify_result(s->ssl) == X509_V_OK) {
|
|
X509* x = SSL_get_peer_certificate(s->ssl);
|
|
if(!x) {
|
|
verbose(VERB_DETAIL, "remote control connection "
|
|
"provided no client certificate");
|
|
clean_point(rc, s);
|
|
return 0;
|
|
}
|
|
verbose(VERB_ALGO, "remote control connection authenticated");
|
|
X509_free(x);
|
|
} else {
|
|
verbose(VERB_DETAIL, "remote control connection failed to "
|
|
"authenticate with client certificate");
|
|
clean_point(rc, s);
|
|
return 0;
|
|
}
|
|
|
|
/* if OK start to actually handle the request */
|
|
handle_req(rc, s, s->ssl);
|
|
|
|
verbose(VERB_ALGO, "remote control operation completed");
|
|
clean_point(rc, s);
|
|
return 0;
|
|
}
|