--- /dev/null
+/*
+ * collectd - src/utils_dns.c
+ * Copyright (C) 2006 Florian octo Forster
+ * Copyright (C) 2002 The Measurement Factory, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of The Measurement Factory nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors:
+ * The Measurement Factory, Inc. <http://www.measurement-factory.com/>
+ * Florian octo Forster <octo at collectd.org>
+ */
+
+#define _DEFAULT_SOURCE
+#define _BSD_SOURCE
+
+#include "collectd.h"
+
+#include "plugin.h"
+#include "utils/common/common.h"
+
+#if HAVE_NET_IF_ARP_H
+#include <net/if_arp.h>
+#endif
+#if HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+#if HAVE_NET_PPP_DEFS_H
+#include <net/ppp_defs.h>
+#endif
+#if HAVE_NET_IF_PPP_H
+#include <net/if_ppp.h>
+#endif
+
+#if HAVE_NETINET_IN_SYSTM_H
+#include <netinet/in_systm.h>
+#endif
+#if HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#if HAVE_NETINET_IP6_H
+#include <netinet/ip6.h>
+#endif
+#if HAVE_NETINET_IF_ETHER_H
+#include <netinet/if_ether.h>
+#endif
+#if HAVE_NETINET_IP_H
+#include <netinet/ip.h>
+#endif
+#ifdef HAVE_NETINET_IP_VAR_H
+#include <netinet/ip_var.h>
+#endif
+#if HAVE_NETINET_UDP_H
+#include <netinet/udp.h>
+#endif
+
+#if HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#if HAVE_ARPA_NAMESER_H
+#include <arpa/nameser.h>
+#endif
+#if HAVE_ARPA_NAMESER_COMPAT_H
+#include <arpa/nameser_compat.h>
+#endif
+
+#if HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#if HAVE_PCAP_H
+#include <pcap.h>
+#endif
+
+#define PCAP_SNAPLEN 1460
+#ifndef ETHER_HDR_LEN
+#define ETHER_ADDR_LEN 6
+#define ETHER_TYPE_LEN 2
+#define ETHER_HDR_LEN (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN)
+#endif
+#ifndef ETHERTYPE_8021Q
+#define ETHERTYPE_8021Q 0x8100
+#endif
+#ifndef ETHERTYPE_IPV6
+#define ETHERTYPE_IPV6 0x86DD
+#endif
+
+#ifndef PPP_ADDRESS_VAL
+#define PPP_ADDRESS_VAL 0xff /* The address byte value */
+#endif
+#ifndef PPP_CONTROL_VAL
+#define PPP_CONTROL_VAL 0x03 /* The control byte value */
+#endif
+
+#if HAVE_STRUCT_UDPHDR_UH_DPORT && HAVE_STRUCT_UDPHDR_UH_SPORT
+#define UDP_DEST uh_dport
+#define UDP_SRC uh_sport
+#elif HAVE_STRUCT_UDPHDR_DEST && HAVE_STRUCT_UDPHDR_SOURCE
+#define UDP_DEST dest
+#define UDP_SRC source
+#else
+#error "`struct udphdr' is unusable."
+#endif
+
+#if HAVE_NETINET_IP6_H && HAVE_STRUCT_IP6_EXT
+#define HAVE_IPV6 1
+#endif
+
+#include "utils/dns/dns.h"
+
+/*
+ * Type definitions
+ */
+struct ip_list_s {
+ struct in6_addr addr;
+ void *data;
+ struct ip_list_s *next;
+};
+typedef struct ip_list_s ip_list_t;
+
+typedef int(printer)(const char *, ...);
+
+/*
+ * flags/features for non-interactive mode
+ */
+
+#ifndef T_A6
+#define T_A6 38
+#endif
+#ifndef T_SRV
+#define T_SRV 33
+#endif
+
+/*
+ * Global variables
+ */
+
+#if HAVE_PCAP_H
+static pcap_t *pcap_obj;
+#endif
+
+static ip_list_t *IgnoreList;
+
+#if HAVE_PCAP_H
+static void (*Callback)(const rfc1035_header_t *);
+
+static int query_count_intvl;
+static int query_count_total;
+#ifdef __OpenBSD__
+static struct bpf_timeval last_ts;
+#else
+static struct timeval last_ts;
+#endif /* __OpenBSD__ */
+#endif /* HAVE_PCAP_H */
+
+static int cmp_in6_addr(const struct in6_addr *a, const struct in6_addr *b) {
+ int i;
+
+ assert(sizeof(struct in6_addr) == 16);
+
+ for (i = 0; i < 16; i++)
+ if (a->s6_addr[i] != b->s6_addr[i])
+ break;
+
+ if (i >= 16)
+ return 0;
+
+ return a->s6_addr[i] > b->s6_addr[i] ? 1 : -1;
+} /* int cmp_addrinfo */
+
+static inline int ignore_list_match(const struct in6_addr *addr) {
+ for (ip_list_t *ptr = IgnoreList; ptr != NULL; ptr = ptr->next)
+ if (cmp_in6_addr(addr, &ptr->addr) == 0)
+ return 1;
+ return 0;
+} /* int ignore_list_match */
+
+static void ignore_list_add(const struct in6_addr *addr) {
+ ip_list_t *new;
+
+ if (ignore_list_match(addr) != 0)
+ return;
+
+ new = malloc(sizeof(*new));
+ if (new == NULL) {
+ perror("malloc");
+ return;
+ }
+
+ memcpy(&new->addr, addr, sizeof(struct in6_addr));
+ new->next = IgnoreList;
+
+ IgnoreList = new;
+} /* void ignore_list_add */
+
+void ignore_list_add_name(const char *name) {
+ struct addrinfo *ai_list;
+ struct in6_addr addr;
+ int status;
+
+ status = getaddrinfo(name, NULL, NULL, &ai_list);
+ if (status != 0)
+ return;
+
+ for (struct addrinfo *ai_ptr = ai_list; ai_ptr != NULL;
+ ai_ptr = ai_ptr->ai_next) {
+ if (ai_ptr->ai_family == AF_INET) {
+ memset(&addr, '\0', sizeof(addr));
+ addr.s6_addr[10] = 0xFF;
+ addr.s6_addr[11] = 0xFF;
+ memcpy(addr.s6_addr + 12,
+ &((struct sockaddr_in *)ai_ptr->ai_addr)->sin_addr, 4);
+
+ ignore_list_add(&addr);
+ } else {
+ ignore_list_add(&((struct sockaddr_in6 *)ai_ptr->ai_addr)->sin6_addr);
+ }
+ } /* for */
+
+ freeaddrinfo(ai_list);
+}
+
+#if HAVE_PCAP_H
+static void in6_addr_from_buffer(struct in6_addr *ia, const void *buf,
+ size_t buf_len, int family) {
+ memset(ia, 0, sizeof(struct in6_addr));
+ if ((AF_INET == family) && (sizeof(uint32_t) == buf_len)) {
+ ia->s6_addr[10] = 0xFF;
+ ia->s6_addr[11] = 0xFF;
+ memcpy(ia->s6_addr + 12, buf, buf_len);
+ } else if ((AF_INET6 == family) && (sizeof(struct in6_addr) == buf_len)) {
+ memcpy(ia, buf, buf_len);
+ }
+} /* void in6_addr_from_buffer */
+
+void dnstop_set_pcap_obj(pcap_t *po) { pcap_obj = po; }
+
+void dnstop_set_callback(void (*cb)(const rfc1035_header_t *)) {
+ Callback = cb;
+}
+
+#define RFC1035_MAXLABELSZ 63
+static int rfc1035NameUnpack(const char *buf, size_t sz, off_t *off, char *name,
+ size_t ns) {
+ off_t no = 0;
+ unsigned char c;
+ size_t len;
+ static int loop_detect;
+ if (loop_detect > 2)
+ return 4; /* compression loop */
+ if (ns == 0)
+ return 4; /* probably compression loop */
+ do {
+ if ((*off) >= ((off_t)sz))
+ break;
+ c = *(buf + (*off));
+ if (c > 191) {
+ /* blasted compression */
+ int rc;
+ unsigned short s;
+ off_t ptr;
+ memcpy(&s, buf + (*off), sizeof(s));
+ s = ntohs(s);
+ (*off) += sizeof(s);
+ /* Sanity check */
+ if ((*off) >= ((off_t)sz))
+ return 1; /* message too short */
+ ptr = s & 0x3FFF;
+ /* Make sure the pointer is inside this message */
+ if (ptr >= ((off_t)sz))
+ return 2; /* bad compression ptr */
+ if (ptr < DNS_MSG_HDR_SZ)
+ return 2; /* bad compression ptr */
+ loop_detect++;
+ rc = rfc1035NameUnpack(buf, sz, &ptr, name + no, ns - no);
+ loop_detect--;
+ return rc;
+ } else if (c > RFC1035_MAXLABELSZ) {
+ /*
+ * "(The 10 and 01 combinations are reserved for future use.)"
+ */
+ return 3; /* reserved label/compression flags */
+ } else {
+ (*off)++;
+ len = (size_t)c;
+ if (len == 0)
+ break;
+ if (len > (ns - 1))
+ len = ns - 1;
+ if ((*off) + len > sz)
+ return 4; /* message is too short */
+ if (no + len + 1 > ns)
+ return 5; /* qname would overflow name buffer */
+ memcpy(name + no, buf + (*off), len);
+ (*off) += len;
+ no += len;
+ *(name + (no++)) = '.';
+ }
+ } while (c > 0);
+ if (no > 0)
+ *(name + no - 1) = '\0';
+ /* make sure we didn't allow someone to overflow the name buffer */
+ assert(no <= ((off_t)ns));
+ return 0;
+}
+
+static int handle_dns(const char *buf, int len) {
+ rfc1035_header_t qh;
+ uint16_t us;
+ off_t offset;
+ char *t;
+ int status;
+
+ /* The DNS header is 12 bytes long */
+ if (len < DNS_MSG_HDR_SZ)
+ return 0;
+
+ memcpy(&us, buf + 0, 2);
+ qh.id = ntohs(us);
+
+ memcpy(&us, buf + 2, 2);
+ us = ntohs(us);
+ qh.qr = (us >> 15) & 0x01;
+ qh.opcode = (us >> 11) & 0x0F;
+ qh.aa = (us >> 10) & 0x01;
+ qh.tc = (us >> 9) & 0x01;
+ qh.rd = (us >> 8) & 0x01;
+ qh.ra = (us >> 7) & 0x01;
+ qh.z = (us >> 6) & 0x01;
+ qh.ad = (us >> 5) & 0x01;
+ qh.cd = (us >> 4) & 0x01;
+ qh.rcode = us & 0x0F;
+
+ memcpy(&us, buf + 4, 2);
+ qh.qdcount = ntohs(us);
+
+ memcpy(&us, buf + 6, 2);
+ qh.ancount = ntohs(us);
+
+ memcpy(&us, buf + 8, 2);
+ qh.nscount = ntohs(us);
+
+ memcpy(&us, buf + 10, 2);
+ qh.arcount = ntohs(us);
+
+ offset = DNS_MSG_HDR_SZ;
+ memset(qh.qname, '\0', MAX_QNAME_SZ);
+ status = rfc1035NameUnpack(buf, len, &offset, qh.qname, MAX_QNAME_SZ);
+ if (status != 0) {
+ INFO("utils_dns: handle_dns: rfc1035NameUnpack failed "
+ "with status %i.",
+ status);
+ return 0;
+ }
+ if ('\0' == qh.qname[0])
+ sstrncpy(qh.qname, ".", sizeof(qh.qname));
+ while ((t = strchr(qh.qname, '\n')))
+ *t = ' ';
+ while ((t = strchr(qh.qname, '\r')))
+ *t = ' ';
+ for (t = qh.qname; *t; t++)
+ *t = tolower((int)*t);
+
+ memcpy(&us, buf + offset, 2);
+ qh.qtype = ntohs(us);
+ memcpy(&us, buf + offset + 2, 2);
+ qh.qclass = ntohs(us);
+
+ qh.length = (uint16_t)len;
+
+ if (Callback != NULL)
+ Callback(&qh);
+
+ return 1;
+}
+
+static int handle_udp(const struct udphdr *udp, int len) {
+ char buf[PCAP_SNAPLEN];
+ if ((ntohs(udp->UDP_DEST) != 53) && (ntohs(udp->UDP_SRC) != 53))
+ return 0;
+ memcpy(buf, udp + 1, len - sizeof(*udp));
+ if (0 == handle_dns(buf, len - sizeof(*udp)))
+ return 0;
+ return 1;
+}
+
+#if HAVE_IPV6
+static int handle_ipv6(struct ip6_hdr *ipv6, int len) {
+ char buf[PCAP_SNAPLEN];
+ unsigned int offset;
+ int nexthdr;
+
+ struct in6_addr c_src_addr;
+ uint16_t payload_len;
+
+ if (0 > len)
+ return 0;
+
+ offset = sizeof(struct ip6_hdr);
+ nexthdr = ipv6->ip6_nxt;
+ c_src_addr = ipv6->ip6_src;
+ payload_len = ntohs(ipv6->ip6_plen);
+
+ if (ignore_list_match(&c_src_addr))
+ return 0;
+
+ /* Parse extension headers. This only handles the standard headers, as
+ * defined in RFC 2460, correctly. Fragments are discarded. */
+ while ((IPPROTO_ROUTING == nexthdr) /* routing header */
+ || (IPPROTO_HOPOPTS == nexthdr) /* Hop-by-Hop options. */
+ || (IPPROTO_FRAGMENT == nexthdr) /* fragmentation header. */
+ || (IPPROTO_DSTOPTS == nexthdr) /* destination options. */
+ || (IPPROTO_AH == nexthdr) /* destination options. */
+ || (IPPROTO_ESP == nexthdr)) /* encapsulating security payload. */
+ {
+ struct ip6_ext ext_hdr;
+ uint16_t ext_hdr_len;
+
+ /* Catch broken packets */
+ if ((offset + sizeof(struct ip6_ext)) > (unsigned int)len)
+ return 0;
+
+ /* Cannot handle fragments. */
+ if (IPPROTO_FRAGMENT == nexthdr)
+ return 0;
+
+ memcpy(&ext_hdr, (char *)ipv6 + offset, sizeof(struct ip6_ext));
+ nexthdr = ext_hdr.ip6e_nxt;
+ ext_hdr_len = (8 * (ntohs(ext_hdr.ip6e_len) + 1));
+
+ /* This header is longer than the packets payload.. WTF? */
+ if (ext_hdr_len > payload_len)
+ return 0;
+
+ offset += ext_hdr_len;
+ payload_len -= ext_hdr_len;
+ } /* while */
+
+ /* Catch broken and empty packets */
+ if (((offset + payload_len) > (unsigned int)len) || (payload_len == 0) ||
+ (payload_len > PCAP_SNAPLEN))
+ return 0;
+
+ if (IPPROTO_UDP != nexthdr)
+ return 0;
+
+ memcpy(buf, (char *)ipv6 + offset, payload_len);
+ if (handle_udp((struct udphdr *)buf, payload_len) == 0)
+ return 0;
+
+ return 1; /* Success */
+} /* int handle_ipv6 */
+/* #endif HAVE_IPV6 */
+
+#else /* if !HAVE_IPV6 */
+static int handle_ipv6(__attribute__((unused)) void *pkg,
+ __attribute__((unused)) int len) {
+ return 0;
+}
+#endif /* !HAVE_IPV6 */
+
+static int handle_ip(const struct ip *ip, int len) {
+ char buf[PCAP_SNAPLEN];
+ int offset = ip->ip_hl << 2;
+ struct in6_addr c_src_addr;
+ struct in6_addr c_dst_addr;
+
+ if (ip->ip_v == 6)
+ return handle_ipv6((void *)ip, len);
+
+ in6_addr_from_buffer(&c_src_addr, &ip->ip_src.s_addr,
+ sizeof(ip->ip_src.s_addr), AF_INET);
+ in6_addr_from_buffer(&c_dst_addr, &ip->ip_dst.s_addr,
+ sizeof(ip->ip_dst.s_addr), AF_INET);
+ if (ignore_list_match(&c_src_addr))
+ return 0;
+ if (IPPROTO_UDP != ip->ip_p)
+ return 0;
+ memcpy(buf, ((char *)ip) + offset, len - offset);
+ if (0 == handle_udp((struct udphdr *)buf, len - offset))
+ return 0;
+ return 1;
+}
+
+#if HAVE_NET_IF_PPP_H
+static int handle_ppp(const u_char *pkt, int len) {
+ char buf[PCAP_SNAPLEN];
+ unsigned short us;
+ unsigned short proto;
+ if (len < 2)
+ return 0;
+ if (*pkt == PPP_ADDRESS_VAL && *(pkt + 1) == PPP_CONTROL_VAL) {
+ pkt += 2; /* ACFC not used */
+ len -= 2;
+ }
+ if (len < 2)
+ return 0;
+ if (*pkt % 2) {
+ proto = *pkt; /* PFC is used */
+ pkt++;
+ len--;
+ } else {
+ memcpy(&us, pkt, sizeof(us));
+ proto = ntohs(us);
+ pkt += 2;
+ len -= 2;
+ }
+ if (ETHERTYPE_IP != proto && PPP_IP != proto)
+ return 0;
+ memcpy(buf, pkt, len);
+ return handle_ip((struct ip *)buf, len);
+}
+#endif /* HAVE_NET_IF_PPP_H */
+
+static int handle_null(const u_char *pkt, int len) {
+ unsigned int family;
+ memcpy(&family, pkt, sizeof(family));
+ if (AF_INET != family)
+ return 0;
+ return handle_ip((struct ip *)(pkt + 4), len - 4);
+}
+
+#ifdef DLT_LOOP
+static int handle_loop(const u_char *pkt, int len) {
+ unsigned int family;
+ memcpy(&family, pkt, sizeof(family));
+ if (AF_INET != ntohl(family))
+ return 0;
+ return handle_ip((struct ip *)(pkt + 4), len - 4);
+}
+
+#endif
+
+#ifdef DLT_RAW
+static int handle_raw(const u_char *pkt, int len) {
+ return handle_ip((struct ip *)pkt, len);
+}
+
+#endif
+
+static int handle_ether(const u_char *pkt, int len) {
+ char buf[PCAP_SNAPLEN];
+ struct ether_header *e = (void *)pkt;
+ unsigned short etype = ntohs(e->ether_type);
+ if (len < ETHER_HDR_LEN)
+ return 0;
+ pkt += ETHER_HDR_LEN;
+ len -= ETHER_HDR_LEN;
+ if (ETHERTYPE_8021Q == etype) {
+ etype = ntohs(*(unsigned short *)(pkt + 2));
+ pkt += 4;
+ len -= 4;
+ }
+ if ((ETHERTYPE_IP != etype) && (ETHERTYPE_IPV6 != etype))
+ return 0;
+ memcpy(buf, pkt, len);
+ if (ETHERTYPE_IPV6 == etype)
+ return handle_ipv6((void *)buf, len);
+ else
+ return handle_ip((struct ip *)buf, len);
+}
+
+#ifdef DLT_LINUX_SLL
+static int handle_linux_sll(const u_char *pkt, int len) {
+ struct sll_header {
+ uint16_t pkt_type;
+ uint16_t dev_type;
+ uint16_t addr_len;
+ uint8_t addr[8];
+ uint16_t proto_type;
+ } * hdr;
+ uint16_t etype;
+
+ if ((0 > len) || ((unsigned int)len < sizeof(struct sll_header)))
+ return 0;
+
+ hdr = (struct sll_header *)pkt;
+ pkt = (u_char *)(hdr + 1);
+ len -= sizeof(struct sll_header);
+
+ etype = ntohs(hdr->proto_type);
+
+ if ((ETHERTYPE_IP != etype) && (ETHERTYPE_IPV6 != etype))
+ return 0;
+
+ if (ETHERTYPE_IPV6 == etype)
+ return handle_ipv6((void *)pkt, len);
+ else
+ return handle_ip((struct ip *)pkt, len);
+}
+#endif /* DLT_LINUX_SLL */
+
+/* public function */
+void handle_pcap(u_char *udata, const struct pcap_pkthdr *hdr,
+ const u_char *pkt) {
+ int status;
+
+ if (hdr->caplen < ETHER_HDR_LEN)
+ return;
+
+ switch (pcap_datalink(pcap_obj)) {
+ case DLT_EN10MB:
+ status = handle_ether(pkt, hdr->caplen);
+ break;
+#if HAVE_NET_IF_PPP_H
+ case DLT_PPP:
+ status = handle_ppp(pkt, hdr->caplen);
+ break;
+#endif
+#ifdef DLT_LOOP
+ case DLT_LOOP:
+ status = handle_loop(pkt, hdr->caplen);
+ break;
+#endif
+#ifdef DLT_RAW
+ case DLT_RAW:
+ status = handle_raw(pkt, hdr->caplen);
+ break;
+#endif
+#ifdef DLT_LINUX_SLL
+ case DLT_LINUX_SLL:
+ status = handle_linux_sll(pkt, hdr->caplen);
+ break;
+#endif
+ case DLT_NULL:
+ status = handle_null(pkt, hdr->caplen);
+ break;
+
+ default:
+ ERROR("handle_pcap: unsupported data link type %d",
+ pcap_datalink(pcap_obj));
+ status = 0;
+ break;
+ } /* switch (pcap_datalink(pcap_obj)) */
+
+ if (0 == status)
+ return;
+
+ query_count_intvl++;
+ query_count_total++;
+ last_ts = hdr->ts;
+}
+#endif /* HAVE_PCAP_H */
+
+const char *qtype_str(int t) {
+ static char buf[32];
+ switch (t) {
+#if (defined(__NAMESER)) && (__NAMESER >= 19991001)
+ case ns_t_a:
+ return "A";
+ case ns_t_ns:
+ return "NS";
+ case ns_t_md:
+ return "MD";
+ case ns_t_mf:
+ return "MF";
+ case ns_t_cname:
+ return "CNAME";
+ case ns_t_soa:
+ return "SOA";
+ case ns_t_mb:
+ return "MB";
+ case ns_t_mg:
+ return "MG";
+ case ns_t_mr:
+ return "MR";
+ case ns_t_null:
+ return "NULL";
+ case ns_t_wks:
+ return "WKS";
+ case ns_t_ptr:
+ return "PTR";
+ case ns_t_hinfo:
+ return "HINFO";
+ case ns_t_minfo:
+ return "MINFO";
+ case ns_t_mx:
+ return "MX";
+ case ns_t_txt:
+ return "TXT";
+ case ns_t_rp:
+ return "RP";
+ case ns_t_afsdb:
+ return "AFSDB";
+ case ns_t_x25:
+ return "X25";
+ case ns_t_isdn:
+ return "ISDN";
+ case ns_t_rt:
+ return "RT";
+ case ns_t_nsap:
+ return "NSAP";
+ case ns_t_nsap_ptr:
+ return "NSAP-PTR";
+ case ns_t_sig:
+ return "SIG";
+ case ns_t_key:
+ return "KEY";
+ case ns_t_px:
+ return "PX";
+ case ns_t_gpos:
+ return "GPOS";
+ case ns_t_aaaa:
+ return "AAAA";
+ case ns_t_loc:
+ return "LOC";
+ case ns_t_nxt:
+ return "NXT";
+ case ns_t_eid:
+ return "EID";
+ case ns_t_nimloc:
+ return "NIMLOC";
+ case ns_t_srv:
+ return "SRV";
+ case ns_t_atma:
+ return "ATMA";
+ case ns_t_naptr:
+ return "NAPTR";
+ case ns_t_opt:
+ return "OPT";
+#if __NAMESER >= 19991006
+ case ns_t_kx:
+ return "KX";
+ case ns_t_cert:
+ return "CERT";
+ case ns_t_a6:
+ return "A6";
+ case ns_t_dname:
+ return "DNAME";
+ case ns_t_sink:
+ return "SINK";
+ case ns_t_tsig:
+ return "TSIG";
+#endif
+#if __NAMESER >= 20090302
+ case ns_t_apl:
+ return "APL";
+ case ns_t_ds:
+ return "DS";
+ case ns_t_sshfp:
+ return "SSHFP";
+ case ns_t_ipseckey:
+ return "IPSECKEY";
+ case ns_t_rrsig:
+ return "RRSIG";
+ case ns_t_nsec:
+ return "NSEC";
+ case ns_t_dnskey:
+ return "DNSKEY";
+ case ns_t_dhcid:
+ return "DHCID";
+ case ns_t_nsec3:
+ return "NSEC3";
+ case ns_t_nsec3param:
+ return "NSEC3PARAM";
+ case ns_t_hip:
+ return "HIP";
+ case ns_t_spf:
+ return "SPF";
+ case ns_t_ixfr:
+ return "IXFR";
+#endif
+ case ns_t_axfr:
+ return "AXFR";
+ case ns_t_mailb:
+ return "MAILB";
+ case ns_t_maila:
+ return "MAILA";
+ case ns_t_any:
+ return "ANY";
+#if __NAMESER >= 19991006
+ case ns_t_zxfr:
+ return "ZXFR";
+#endif
+#if __NAMESER >= 20090302
+ case ns_t_dlv:
+ return "DLV";
+#endif
+/* #endif __NAMESER >= 19991001 */
+#elif (defined(__BIND)) && (__BIND >= 19950621)
+ case T_A:
+ return "A"; /* 1 ... */
+ case T_NS:
+ return "NS";
+ case T_MD:
+ return "MD";
+ case T_MF:
+ return "MF";
+ case T_CNAME:
+ return "CNAME";
+ case T_SOA:
+ return "SOA";
+ case T_MB:
+ return "MB";
+ case T_MG:
+ return "MG";
+ case T_MR:
+ return "MR";
+ case T_NULL:
+ return "NULL";
+ case T_WKS:
+ return "WKS";
+ case T_PTR:
+ return "PTR";
+ case T_HINFO:
+ return "HINFO";
+ case T_MINFO:
+ return "MINFO";
+ case T_MX:
+ return "MX";
+ case T_TXT:
+ return "TXT";
+ case T_RP:
+ return "RP";
+ case T_AFSDB:
+ return "AFSDB";
+ case T_X25:
+ return "X25";
+ case T_ISDN:
+ return "ISDN";
+ case T_RT:
+ return "RT";
+ case T_NSAP:
+ return "NSAP";
+ case T_NSAP_PTR:
+ return "NSAP_PTR";
+ case T_SIG:
+ return "SIG";
+ case T_KEY:
+ return "KEY";
+ case T_PX:
+ return "PX";
+ case T_GPOS:
+ return "GPOS";
+ case T_AAAA:
+ return "AAAA";
+ case T_LOC:
+ return "LOC";
+ case T_NXT:
+ return "NXT";
+ case T_EID:
+ return "EID";
+ case T_NIMLOC:
+ return "NIMLOC";
+ case T_SRV:
+ return "SRV";
+ case T_ATMA:
+ return "ATMA";
+ case T_NAPTR:
+ return "NAPTR"; /* ... 35 */
+#if (__BIND >= 19960801)
+ case T_KX:
+ return "KX"; /* 36 ... */
+ case T_CERT:
+ return "CERT";
+ case T_A6:
+ return "A6";
+ case T_DNAME:
+ return "DNAME";
+ case T_SINK:
+ return "SINK";
+ case T_OPT:
+ return "OPT";
+ case T_APL:
+ return "APL";
+ case T_DS:
+ return "DS";
+ case T_SSHFP:
+ return "SSHFP";
+ case T_RRSIG:
+ return "RRSIG";
+ case T_NSEC:
+ return "NSEC";
+ case T_DNSKEY:
+ return "DNSKEY"; /* ... 48 */
+ case T_TKEY:
+ return "TKEY"; /* 249 */
+#endif /* __BIND >= 19960801 */
+ case T_TSIG:
+ return "TSIG"; /* 250 ... */
+ case T_IXFR:
+ return "IXFR";
+ case T_AXFR:
+ return "AXFR";
+ case T_MAILB:
+ return "MAILB";
+ case T_MAILA:
+ return "MAILA";
+ case T_ANY:
+ return "ANY"; /* ... 255 */
+#endif /* __BIND >= 19950621 */
+ default:
+ snprintf(buf, sizeof(buf), "#%i", t);
+ return buf;
+ } /* switch (t) */
+}
+
+const char *opcode_str(int o) {
+ static char buf[30];
+ switch (o) {
+ case 0:
+ return "Query";
+ case 1:
+ return "Iquery";
+ case 2:
+ return "Status";
+ case 4:
+ return "Notify";
+ case 5:
+ return "Update";
+ default:
+ snprintf(buf, sizeof(buf), "Opcode%d", o);
+ return buf;
+ }
+}
+
+const char *rcode_str(int rcode) {
+ static char buf[32];
+ switch (rcode) {
+#if (defined(__NAMESER)) && (__NAMESER >= 19991006)
+ case ns_r_noerror:
+ return "NOERROR";
+ case ns_r_formerr:
+ return "FORMERR";
+ case ns_r_servfail:
+ return "SERVFAIL";
+ case ns_r_nxdomain:
+ return "NXDOMAIN";
+ case ns_r_notimpl:
+ return "NOTIMPL";
+ case ns_r_refused:
+ return "REFUSED";
+ case ns_r_yxdomain:
+ return "YXDOMAIN";
+ case ns_r_yxrrset:
+ return "YXRRSET";
+ case ns_r_nxrrset:
+ return "NXRRSET";
+ case ns_r_notauth:
+ return "NOTAUTH";
+ case ns_r_notzone:
+ return "NOTZONE";
+ case ns_r_max:
+ return "MAX";
+ case ns_r_badsig:
+ return "BADSIG";
+ case ns_r_badkey:
+ return "BADKEY";
+ case ns_r_badtime:
+ return "BADTIME";
+/* #endif __NAMESER >= 19991006 */
+#elif (defined(__BIND)) && (__BIND >= 19950621)
+ case NOERROR:
+ return "NOERROR";
+ case FORMERR:
+ return "FORMERR";
+ case SERVFAIL:
+ return "SERVFAIL";
+ case NXDOMAIN:
+ return "NXDOMAIN";
+ case NOTIMP:
+ return "NOTIMP";
+ case REFUSED:
+ return "REFUSED";
+#if defined(YXDOMAIN) && defined(NXRRSET)
+ case YXDOMAIN:
+ return "YXDOMAIN";
+ case YXRRSET:
+ return "YXRRSET";
+ case NXRRSET:
+ return "NXRRSET";
+ case NOTAUTH:
+ return "NOTAUTH";
+ case NOTZONE:
+ return "NOTZONE";
+#endif /* RFC2136 rcodes */
+#endif /* __BIND >= 19950621 */
+ default:
+ snprintf(buf, sizeof(buf), "RCode%i", rcode);
+ return buf;
+ }
+} /* const char *rcode_str (int rcode) */
+
+#if 0
+static int
+main(int argc, char *argv[])
+{
+ char errbuf[PCAP_ERRBUF_SIZE];
+ int x;
+ struct stat sb;
+ int readfile_state = 0;
+ struct bpf_program fp;
+
+ port53 = htons(53);
+ SubReport = Sources_report;
+ ignore_addr.s_addr = 0;
+ progname = strdup(strrchr(argv[0], '/') ? strchr(argv[0], '/') + 1 : argv[0]);
+ srandom(time(NULL));
+ ResetCounters();
+
+ while ((x = getopt(argc, argv, "ab:f:i:pst")) != -1) {
+ switch (x) {
+ case 'a':
+ anon_flag = 1;
+ break;
+ case 's':
+ sld_flag = 1;
+ break;
+ case 't':
+ nld_flag = 1;
+ break;
+ case 'p':
+ promisc_flag = 0;
+ break;
+ case 'b':
+ bpf_program_str = strdup(optarg);
+ break;
+ case 'i':
+ ignore_addr.s_addr = inet_addr(optarg);
+ break;
+ case 'f':
+ set_filter(optarg);
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 1)
+ usage();
+ device = strdup(argv[0]);
+
+ if (0 == stat(device, &sb))
+ readfile_state = 1;
+ if (readfile_state) {
+ pcap_obj = pcap_open_offline(device, errbuf);
+ } else {
+ pcap_obj = pcap_open_live(device, PCAP_SNAPLEN, promisc_flag, 1000, errbuf);
+ }
+ if (NULL == pcap_obj) {
+ fprintf(stderr, "pcap_open_*: %s\n", errbuf);
+ exit(1);
+ }
+
+ if (0 == isatty(1)) {
+ if (0 == readfile_state) {
+ fprintf(stderr, "Non-interactive mode requires savefile argument\n");
+ exit(1);
+ }
+ interactive = 0;
+ print_func = printf;
+ }
+
+ memset(&fp, '\0', sizeof(fp));
+ x = pcap_compile(pcap_obj, &fp, bpf_program_str, 1, 0);
+ if (x < 0) {
+ fprintf(stderr, "pcap_compile failed\n");
+ exit(1);
+ }
+ x = pcap_setfilter(pcap_obj, &fp);
+ if (x < 0) {
+ fprintf(stderr, "pcap_setfilter failed\n");
+ exit(1);
+ }
+
+ /*
+ * non-blocking call added for Mac OS X bugfix. Sent by Max Horn.
+ * ref http://www.tcpdump.org/lists/workers/2002/09/msg00033.html
+ */
+ x = pcap_setnonblock(pcap_obj, 1, errbuf);
+ if (x < 0) {
+ fprintf(stderr, "pcap_setnonblock failed: %s\n", errbuf);
+ exit(1);
+ }
+
+ switch (pcap_datalink(pcap_obj)) {
+ case DLT_EN10MB:
+ handle_datalink = handle_ether;
+ break;
+#if HAVE_NET_IF_PPP_H
+ case DLT_PPP:
+ handle_datalink = handle_ppp;
+ break;
+#endif
+#ifdef DLT_LOOP
+ case DLT_LOOP:
+ handle_datalink = handle_loop;
+ break;
+#endif
+#ifdef DLT_RAW
+ case DLT_RAW:
+ handle_datalink = handle_raw;
+ break;
+#endif
+ case DLT_NULL:
+ handle_datalink = handle_null;
+ break;
+ default:
+ fprintf(stderr, "unsupported data link type %d\n",
+ pcap_datalink(pcap_obj));
+ return 1;
+ break;
+ }
+ if (interactive) {
+ init_curses();
+ while (0 == Quit) {
+ if (readfile_state < 2) {
+ /*
+ * On some OSes select() might return 0 even when
+ * there are packets to process. Thus, we always
+ * ignore its return value and just call pcap_dispatch()
+ * anyway.
+ */
+ if (0 == readfile_state) /* interactive */
+ pcap_select(pcap_obj, 1, 0);
+ x = pcap_dispatch(pcap_obj, 50, handle_pcap, NULL);
+ }
+ if (0 == x && 1 == readfile_state) {
+ /* block on keyboard until user quits */
+ readfile_state++;
+ nodelay(w, 0);
+ }
+ keyboard();
+ cron_pre();
+ report();
+ cron_post();
+ }
+ endwin(); /* klin, Thu Nov 28 08:56:51 2002 */
+ } else {
+ while (pcap_dispatch(pcap_obj, 50, handle_pcap, NULL))
+ (void) 0;
+ cron_pre();
+ Sources_report(); print_func("\n");
+ Destinatioreport(); print_func("\n");
+ Qtypes_report(); print_func("\n");
+ Opcodes_report(); print_func("\n");
+ Tld_report(); print_func("\n");
+ Sld_report(); print_func("\n");
+ Nld_report(); print_func("\n");
+ SldBySource_report();
+ }
+
+ pcap_close(pcap_obj);
+ return 0;
+} /* static int main(int argc, char *argv[]) */
+#endif
projects / collectd.git / blobdiff