/* addr_resolv.h * Definitions for network object lookup * * $Id$ * * Laurent Deniel * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* The buffers returned by these functions are all allocated with a * packet lifetime and does not have have to be freed. * However, take into account that when the packet dissection * completes, these buffers will be automatically reclaimed/freed. * If you need the buffer to remain for a longer scope than packet lifetime * you must copy the content to an se_alloc() buffer. */ #ifndef __RESOLV_H__ #define __RESOLV_H__ #include #ifndef MAXNAMELEN #define MAXNAMELEN 64 /* max name length (hostname and port name) */ #endif /* * Flag controlling what names to resolve. */ ETH_VAR_IMPORT guint32 g_resolv_flags; /* 32 types are sufficient (as are 640k of RAM) */ /* FIXME: Maybe MANUF/m, IP/i, IP6/6, IPX/x, UDP+TCP/t etc would be more useful/consistent */ #define RESOLV_NONE 0x0 #define RESOLV_MAC 0x1 #define RESOLV_NETWORK 0x2 #define RESOLV_TRANSPORT 0x4 #define RESOLV_CONCURRENT 0x8 #define RESOLV_ALL_ADDRS (RESOLV_MAC|RESOLV_NETWORK|RESOLV_TRANSPORT) #define RESOLV_ALL 0xFFFFFFFF /* global variables */ extern gchar *g_ethers_path; extern gchar *g_ipxnets_path; extern gchar *g_pethers_path; extern gchar *g_pipxnets_path; /* Functions in resolv.c */ /* Set the flags controlling what names to resolve */ extern void resolv_set_flags(guint32 flags); /* * get_udp_port() returns the port name corresponding to that UDP port, * or the port number as a string if not found. */ extern gchar *get_udp_port(guint port); /* * get_tcp_port() returns the port name corresponding to that TCP port, * or the port number as a string if not found. */ extern gchar *get_tcp_port(guint port); /* * get_dccp_port() returns the port name corresponding to that DCCP port, * or the port number as a string if not found. */ extern gchar *get_dccp_port(guint port); /* * get_sctp_port() returns the port name corresponding to that SCTP port, * or the port number as a string if not found. */ extern gchar *get_sctp_port(guint port); /* get_addr_name takes as input an "address", as defined in address.h */ /* it returns a string that contains: */ /* - if the address is of a type that can be translated into a name, and the user */ /* has activated name resolution, the translated name */ /* - if the address is of type AT_NONE, a pointer to the string "NONE" */ /* - if the address is of any other type, the result of address_to_str on the argument, */ /* which should be a string representation for the answer -e.g. "10.10.10.10" for IPv4 */ /* address 10.10.10.10 */ const gchar *get_addr_name(address *addr); /* get_addr_name_buf solves an address in the same way as get_addr_name above */ /* The difference is that get_addr_name_buf takes as input a buffer, in which it puts */ /* the result, and a maximum string length -size-. the buffer should be large enough to */ /* contain size characters plus the terminator */ void get_addr_name_buf(address *addr, gchar *buf, guint size); /* * Asynchronous host name lookup initialization, processing, and cleanup */ /* host_name_lookup_init fires up an ADNS socket if we're using ADNS */ extern void host_name_lookup_init(void); /* host_name_lookup_process does ADNS processing in GTK+ timeouts in Wireshark, and before processing each packet in TShark, if we're using ADNS */ extern gint host_name_lookup_process(gpointer data); /* host_name_lookup_cleanup cleans up an ADNS socket if we're using ADNS */ extern void host_name_lookup_cleanup(void); /* get_hostname returns the host name or "%d.%d.%d.%d" if not found */ extern gchar *get_hostname(guint addr); /* get_hostname6 returns the host name, or numeric addr if not found */ struct e_in6_addr; const gchar* get_hostname6(struct e_in6_addr *ad); /* get_ether_name returns the logical name if found in ethers files else "_%02x:%02x:%02x" if the vendor code is known else "%02x:%02x:%02x:%02x:%02x:%02x" */ extern gchar *get_ether_name(const guint8 *addr); /* get_ether_name returns the logical name if found in ethers files else NULL */ extern gchar *get_ether_name_if_known(const guint8 *addr); /* get_manuf_name returns the vendor name or "%02x:%02x:%02x" if not known */ extern const gchar *get_manuf_name(const guint8 *addr); /* get_manuf_name returns the vendor name or NULL if not known */ extern const gchar *get_manuf_name_if_known(const guint8 *addr); /* get_ipxnet_name returns the logical name if found in an ipxnets file, * or a string formatted with "%X" if not */ extern const gchar *get_ipxnet_name(const guint32 addr); /* returns the ethernet address corresponding to name or NULL if not known */ extern guint8 *get_ether_addr(const gchar *name); /* returns the ipx network corresponding to name. If name is unknown, * 0 is returned and 'known' is set to FALSE. On success, 'known' * is set to TRUE. */ guint32 get_ipxnet_addr(const gchar *name, gboolean *known); /* adds a hostname/IPv4 in the hash table */ extern void add_ipv4_name(guint addr, const gchar *name); /* adds a hostname/IPv6 in the hash table */ extern void add_ipv6_name(struct e_in6_addr *addr, const gchar *name); /* add ethernet address / name corresponding to IP address */ extern void add_ether_byip(guint ip, const guint8 *eth); /* Translates a string representing the hostname or dotted-decimal IP address * into a numeric IP address value, returning TRUE if it succeeds and * FALSE if it fails. */ gboolean get_host_ipaddr(const char *host, guint32 *addrp); /* * Translate IPv6 numeric address or FQDN hostname, into binary IPv6 address. * Return TRUE if we succeed and set "*addrp" to that numeric IP address; * return FALSE if we fail. */ gboolean get_host_ipaddr6(const char *host, struct e_in6_addr *addrp); /* * Find out whether a hostname resolves to an ip or ipv6 address * Return "ip6" if it is IPv6, "ip" otherwise (including the case * that we don't know) */ const char* host_ip_af(const char *host); #endif /* __RESOLV_H__ */