+++ /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 "common.h"
-
-#if HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#endif
-
-#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_IP_COMPAT_H
-# include <netinet/ip_compat.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.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
- */
-int qtype_counts[T_MAX];
-int opcode_counts[OP_MAX];
-int qclass_counts[C_MAX];
-
-#if HAVE_PCAP_H
-static pcap_t *pcap_obj = NULL;
-#endif
-
-static ip_list_t *IgnoreList = NULL;
-
-#if HAVE_PCAP_H
-static void (*Callback) (const rfc1035_header_t *) = NULL;
-
-static int query_count_intvl = 0;
-static int query_count_total = 0;
-# 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)
-{
- ip_list_t *ptr;
-
- for (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 (ip_list_t));
- 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 addrinfo *ai_ptr;
- struct in6_addr addr;
- int status;
-
- status = getaddrinfo (name, NULL, NULL, &ai_list);
- if (status != 0)
- return;
-
- for (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 = 0;
- if (loop_detect > 2)
- return 4; /* compression loop */
- if (ns <= 0)
- return 4; /* probably compression loop */
- do {
- if ((*off) >= 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) >= sz)
- return 1; /* message too short */
- ptr = s & 0x3FFF;
- /* Make sure the pointer is inside this message */
- if (ptr >= 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 */
- break;
- } 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 <= 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;
-
- /* gather stats */
- qtype_counts[qh.qtype]++;
- qclass_counts[qh.qclass]++;
- opcode_counts[qh.opcode]++;
-
- 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, (void *) 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_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_opt: return ("OPT");
-# if __NAMESER >= 19991006
- case ns_t_tsig: return ("TSIG");
-# endif
- case ns_t_ixfr: return ("IXFR");
- case ns_t_axfr: return ("AXFR");
- case ns_t_mailb: return ("MAILB");
- case ns_t_maila: return ("MAILA");
- case ns_t_any: return ("ANY");
- case ns_t_zxfr: return ("ZXFR");
-/* #endif __NAMESER >= 19991006 */
-#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:
- ssnprintf (buf, sizeof (buf), "#%i", t);
- return (buf);
- }; /* switch (t) */
- /* NOTREACHED */
- return (NULL);
-}
-
-const char *opcode_str (int o)
-{
- static char buf[30];
- switch (o) {
- case 0:
- return "Query";
- break;
- case 1:
- return "Iquery";
- break;
- case 2:
- return "Status";
- break;
- case 4:
- return "Notify";
- break;
- case 5:
- return "Update";
- break;
- default:
- ssnprintf(buf, sizeof (buf), "Opcode%d", o);
- return buf;
- }
- /* NOTREACHED */
-}
-
-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:
- ssnprintf (buf, sizeof (buf), "RCode%i", rcode);
- return (buf);
- }
- /* Never reached */
- return (NULL);
-} /* 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
-/*
- * vim:shiftwidth=4:tabstop=8:softtabstop=4
- */
projects / collectd.git / blobdiff