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https://github.com/samba-team/samba.git
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r5054: added a nmblookup tool, based on the new nbt library
This commit is contained in:
Andrew Tridgell
Gerald (Jerry) Carter
parent
3351c636af
commit
9587cbcb9e
@ -82,6 +82,15 @@ interface nbt
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nbt_qclass question_class;
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} nbt_name_question;
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/* these are the possible values of the NBT_NM_OWNER_TYPE
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field */
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typedef enum {
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NBT_NODE_B = 0x0000,
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NBT_NODE_P = 0x2000,
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NBT_NODE_M = 0x4000,
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NBT_NODE_H = 0x6000
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} nbt_node_type;
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typedef [bitmap16bit] bitmap {
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NBT_NM_PERMANENT = 0x0200,
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NBT_NM_ACTIVE = 0x0400,
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@ -69,3 +69,16 @@ REQUIRED_SUBSYSTEMS = \
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NDR_SAMR
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# End BINARY setnttoken
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#################################
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#################################
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# Start BINARY nmblookup
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[BINARY::nmblookup]
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OBJ_FILES = \
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utils/nmblookup.o
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REQUIRED_SUBSYSTEMS = \
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CONFIG \
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LIBCMDLINE \
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LIBBASIC \
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LIBCLI_NBT
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# End BINARY nmblookup
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#################################
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@ -1,7 +1,9 @@
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/*
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Unix SMB/CIFS implementation.
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NBT client - used to lookup netbios names
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Copyright (C) Andrew Tridgell 1994-1998
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Copyright (C) Andrew Tridgell 1994-2005
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Copyright (C) Jelmer Vernooij 2003 (Conversion to popt)
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This program is free software; you can redistribute it and/or modify
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@ -20,280 +22,264 @@
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*/
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#define NO_SYSLOG
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#include "includes.h"
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#include "dynconfig.h"
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#include "libcli/nbt/libnbt.h"
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#include "lib/cmdline/popt_common.h"
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#include "system/iconv.h"
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extern BOOL AllowDebugChange;
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/* command line options */
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static struct {
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const char *broadcast_address;
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const char *unicast_address;
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BOOL find_master;
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BOOL wins_lookup;
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BOOL node_status;
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BOOL root_port;
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BOOL lookup_by_ip;
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} options;
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static BOOL give_flags = False;
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static BOOL use_bcast = True;
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static BOOL got_bcast = False;
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static struct in_addr bcast_addr;
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static BOOL recursion_desired = False;
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static BOOL translate_addresses = False;
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static int ServerFD= -1;
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static int RootPort = False;
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static BOOL find_status=False;
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/****************************************************************************
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open the socket communication
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**************************************************************************/
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static BOOL open_sockets(void)
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/*
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clean any binary from a node name
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*/
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static const char *clean_name(TALLOC_CTX *mem_ctx, const char *name)
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{
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ServerFD = open_socket_in( SOCK_DGRAM,
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(RootPort ? 137 : 0),
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(RootPort ? 0 : 3),
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interpret_addr(lp_socket_address()), True );
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if (ServerFD == -1)
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return(False);
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set_socket_options( ServerFD, "SO_BROADCAST" );
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DEBUG(3, ("Socket opened.\n"));
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return True;
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char *ret = talloc_strdup(mem_ctx, name);
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int i;
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for (i=0;ret[i];i++) {
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if (!isprint(ret[i])) ret[i] = '.';
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}
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return ret;
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}
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/****************************************************************************
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turn a node status flags field into a string
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****************************************************************************/
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static char *node_status_flags(unsigned char flags)
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/*
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turn a node status flags field into a string
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*/
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static char *node_status_flags(TALLOC_CTX *mem_ctx, uint16_t flags)
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{
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static fstring ret;
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fstrcpy(ret,"");
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fstrcat(ret, (flags & 0x80) ? "<GROUP> " : " ");
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if ((flags & 0x60) == 0x00) fstrcat(ret,"B ");
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if ((flags & 0x60) == 0x20) fstrcat(ret,"P ");
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if ((flags & 0x60) == 0x40) fstrcat(ret,"M ");
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if ((flags & 0x60) == 0x60) fstrcat(ret,"H ");
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if (flags & 0x10) fstrcat(ret,"<DEREGISTERING> ");
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if (flags & 0x08) fstrcat(ret,"<CONFLICT> ");
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if (flags & 0x04) fstrcat(ret,"<ACTIVE> ");
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if (flags & 0x02) fstrcat(ret,"<PERMANENT> ");
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char *ret;
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const char *group = " ";
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const char *type = "B";
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if (flags & NBT_NM_GROUP) {
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group = "<GROUP>";
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}
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switch (flags & NBT_NM_OWNER_TYPE) {
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case NBT_NODE_B:
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type = "B";
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break;
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case NBT_NODE_P:
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type = "P";
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break;
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case NBT_NODE_M:
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type = "M";
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break;
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case NBT_NODE_H:
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type = "H";
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break;
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}
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ret = talloc_asprintf(mem_ctx, "%s %s", group, type);
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if (flags & NBT_NM_DEREGISTER) {
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ret = talloc_asprintf_append(ret, " <DEREGISTERING>");
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}
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if (flags & NBT_NM_CONFLICT) {
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ret = talloc_asprintf_append(ret, " <CONFLICT>");
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}
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if (flags & NBT_NM_ACTIVE) {
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ret = talloc_asprintf_append(ret, " <ACTIVE>");
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}
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if (flags & NBT_NM_PERMANENT) {
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ret = talloc_asprintf_append(ret, " <PERMANENT>");
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}
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return ret;
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}
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/****************************************************************************
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turn the NMB Query flags into a string
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****************************************************************************/
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static char *query_flags(int flags)
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/* do a single node status */
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static void do_node_status(struct nbt_name_socket *nbtsock,
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const char *addr)
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{
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static fstring ret1;
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fstrcpy(ret1, "");
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struct nbt_name_status io;
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NTSTATUS status;
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if (flags & NM_FLAGS_RS) fstrcat(ret1, "Response ");
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if (flags & NM_FLAGS_AA) fstrcat(ret1, "Authoritative ");
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if (flags & NM_FLAGS_TC) fstrcat(ret1, "Truncated ");
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if (flags & NM_FLAGS_RD) fstrcat(ret1, "Recursion_Desired ");
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if (flags & NM_FLAGS_RA) fstrcat(ret1, "Recursion_Available ");
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if (flags & NM_FLAGS_B) fstrcat(ret1, "Broadcast ");
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io.in.name.name = "*";
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io.in.name.type = 0;
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io.in.name.scope = NULL;
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io.in.dest_addr = addr;
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io.in.timeout = 3;
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return ret1;
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status = nbt_name_status(nbtsock, nbtsock, &io);
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if (NT_STATUS_IS_OK(status)) {
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int i;
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printf("Node status reply from %s\n",
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io.out.reply_from);
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for (i=0;i<io.out.status.num_names;i++) {
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d_printf("\t%-16s <%02x> %s\n",
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clean_name(nbtsock, io.out.status.names[i].name),
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io.out.status.names[i].type,
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node_status_flags(nbtsock, io.out.status.names[i].nb_flags));
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}
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printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
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io.out.status.statistics.unit_id[0],
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io.out.status.statistics.unit_id[1],
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io.out.status.statistics.unit_id[2],
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io.out.status.statistics.unit_id[3],
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io.out.status.statistics.unit_id[4],
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io.out.status.statistics.unit_id[5]);
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}
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}
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/****************************************************************************
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do a node status query
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****************************************************************************/
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static void do_node_status(int fd, const char *name, int type, struct in_addr ip)
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/* do a single node query */
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static NTSTATUS do_node_query(struct nbt_name_socket *nbtsock,
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const char *addr,
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const char *node_name,
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enum nbt_name_type node_type,
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BOOL broadcast)
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{
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struct nmb_name nname;
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int count, i, j;
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struct node_status *status;
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struct node_status_extra extra;
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fstring cleanname;
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struct nbt_name_query io;
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NTSTATUS status;
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d_printf("Looking up status of %s\n",inet_ntoa(ip));
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make_nmb_name(&nname, name, type);
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status = node_status_query(fd,&nname,ip, &count, &extra);
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if (status) {
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for (i=0;i<count;i++) {
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pull_ascii_fstring(cleanname, status[i].name);
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for (j=0;cleanname[j];j++) {
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if (!isprint((int)cleanname[j])) cleanname[j] = '.';
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}
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d_printf("\t%-15s <%02x> - %s\n",
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cleanname,status[i].type,
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node_status_flags(status[i].flags));
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io.in.name.name = node_name;
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io.in.name.type = node_type;
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io.in.name.scope = NULL;
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io.in.dest_addr = addr;
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io.in.broadcast = broadcast;
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io.in.wins_lookup = options.wins_lookup;
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io.in.timeout = 3;
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status = nbt_name_query(nbtsock, nbtsock, &io);
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if (NT_STATUS_IS_OK(status)) {
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printf("%s %s<%02x>\n",
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io.out.reply_addr,
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io.out.name.name,
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io.out.name.type);
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if (options.node_status) {
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do_node_status(nbtsock, io.out.reply_addr);
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}
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d_printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
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extra.mac_addr[0], extra.mac_addr[1],
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extra.mac_addr[2], extra.mac_addr[3],
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extra.mac_addr[4], extra.mac_addr[5]);
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d_printf("\n");
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SAFE_FREE(status);
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}
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return status;
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}
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static void process_one(const char *name)
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{
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TALLOC_CTX *tmp_ctx = talloc_new(NULL);
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enum nbt_name_type node_type = NBT_NAME_CLIENT;
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char *node_name, *p;
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struct nbt_name_socket *nbtsock;
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if (options.find_master) {
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node_type = NBT_NAME_MASTER;
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if (*name == '-') {
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name = "\01\02__MSBROWSE__\02";
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node_type = NBT_NAME_MS;
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}
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}
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p = strchr(name, '#');
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if (p) {
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node_name = talloc_strndup(tmp_ctx, name, PTR_DIFF(p,name));
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node_type = (enum nbt_name_type)strtol(p+1, NULL, 16);
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} else {
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d_printf("No reply from %s\n\n",inet_ntoa(ip));
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node_name = talloc_strdup(tmp_ctx, name);
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}
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}
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nbtsock = nbt_name_socket_init(tmp_ctx, NULL);
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/****************************************************************************
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send out one query
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****************************************************************************/
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static BOOL query_one(const char *lookup, unsigned int lookup_type)
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{
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int j, count, flags = 0;
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struct in_addr *ip_list=NULL;
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if (options.root_port) {
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NTSTATUS status;
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status = socket_listen(nbtsock->sock, "0.0.0.0", NBT_NAME_SERVICE_PORT, 0, 0);
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if (!NT_STATUS_IS_OK(status)) {
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printf("Failed to bind to local port 137 - %s\n", nt_errstr(status));
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return;
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}
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}
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if (got_bcast) {
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d_printf("querying %s on %s\n", lookup, inet_ntoa(bcast_addr));
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ip_list = name_query(ServerFD,lookup,lookup_type,use_bcast,
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use_bcast?True:recursion_desired,
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bcast_addr,&count, &flags, NULL);
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if (options.lookup_by_ip) {
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do_node_status(nbtsock, name);
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talloc_free(tmp_ctx);
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return;
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}
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if (options.broadcast_address) {
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do_node_query(nbtsock, options.broadcast_address, node_name, node_type, True);
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} else if (options.unicast_address) {
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do_node_query(nbtsock, options.unicast_address, node_name, node_type, False);
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} else {
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struct in_addr *bcast;
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for (j=iface_count() - 1;
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!ip_list && j >= 0;
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j--) {
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bcast = iface_n_bcast(j);
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d_printf("querying %s on %s\n",
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lookup, inet_ntoa(*bcast));
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ip_list = name_query(ServerFD,lookup,lookup_type,
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use_bcast,
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use_bcast?True:recursion_desired,
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*bcast,&count, &flags, NULL);
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int i, num_interfaces = iface_count();
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for (i=0;i<num_interfaces;i++) {
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const char *bcast = sys_inet_ntoa(*iface_n_bcast(i));
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NTSTATUS status = do_node_query(nbtsock, bcast, node_name, node_type, True);
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if (NT_STATUS_IS_OK(status)) break;
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}
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}
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if (!ip_list) return False;
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talloc_free(tmp_ctx);
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}
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if (give_flags)
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d_printf("Flags: %s\n", query_flags(flags));
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for (j=0;j<count;j++) {
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if (translate_addresses) {
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struct hostent *host = gethostbyaddr((char *)&ip_list[j], sizeof(ip_list[j]), AF_INET);
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if (host) {
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d_printf("%s, ", host -> h_name);
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}
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}
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d_printf("%s %s<%02x>\n",inet_ntoa(ip_list[j]),lookup, lookup_type);
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}
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/* We can only do find_status if the ip address returned
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was valid - ie. name_query returned true.
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*/
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if (find_status) {
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do_node_status(ServerFD, lookup, lookup_type, ip_list[0]);
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}
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safe_free(ip_list);
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return (ip_list != NULL);
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}
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/****************************************************************************
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/*
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main program
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****************************************************************************/
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*/
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int main(int argc,char *argv[])
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{
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int opt;
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unsigned int lookup_type = 0x0;
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fstring lookup;
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static BOOL find_master=False;
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static BOOL lookup_by_ip = False;
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poptContext pc;
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poptContext pc;
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struct poptOption long_options[] = {
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POPT_AUTOHELP
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{ "broadcast", 'B', POPT_ARG_STRING, &options.broadcast_address,
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'B', "Specify address to use for broadcasts", "BROADCAST-ADDRESS" },
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struct poptOption long_options[] = {
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POPT_AUTOHELP
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{ "broadcast", 'B', POPT_ARG_STRING, NULL, 'B', "Specify address to use for broadcasts", "BROADCAST-ADDRESS" },
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{ "flags", 'f', POPT_ARG_VAL, &give_flags, True, "List the NMB flags returned" },
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{ "unicast", 'U', POPT_ARG_STRING, NULL, 'U', "Specify address to use for unicast" },
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{ "master-browser", 'M', POPT_ARG_VAL, &find_master, True, "Search for a master browser" },
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{ "recursion", 'R', POPT_ARG_VAL, &recursion_desired, True, "Set recursion desired in package" },
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{ "status", 'S', POPT_ARG_VAL, &find_status, True, "Lookup node status as well" },
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{ "translate", 'T', POPT_ARG_NONE, NULL, 'T', "Translate IP addresses into names" },
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{ "root-port", 'r', POPT_ARG_VAL, &RootPort, True, "Use root port 137 (Win95 only replies to this)" },
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{ "lookup-by-ip", 'A', POPT_ARG_VAL, &lookup_by_ip, True, "Do a node status on <name> as an IP Address" },
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POPT_COMMON_SAMBA
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POPT_COMMON_CONNECTION
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{ 0, 0, 0, 0 }
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};
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{ "unicast", 'U', POPT_ARG_STRING, &options.unicast_address,
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'U', "Specify address to use for unicast" },
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{ "master-browser", 'M', POPT_ARG_VAL, &options.find_master,
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True, "Search for a master browser" },
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{ "wins", 'W', POPT_ARG_VAL, &options.wins_lookup, True, "Do a WINS lookup" },
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{ "status", 'S', POPT_ARG_VAL, &options.node_status,
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True, "Lookup node status as well" },
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{ "root-port", 'r', POPT_ARG_VAL, &options.root_port,
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True, "Use root port 137 (Win95 only replies to this)" },
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{ "lookup-by-ip", 'A', POPT_ARG_VAL, &options.lookup_by_ip,
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True, "Do a node status on <name> as an IP Address" },
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POPT_COMMON_SAMBA
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{ 0, 0, 0, 0 }
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};
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*lookup = 0;
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setup_logging(argv[0], True);
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setup_logging(argv[0],True);
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pc = poptGetContext("nmblookup", argc, (const char **)argv, long_options,
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POPT_CONTEXT_KEEP_FIRST);
|
||||
|
||||
poptSetOtherOptionHelp(pc, "<NODE> ...");
|
||||
|
||||
pc = poptGetContext("nmblookup", argc, (const char **)argv, long_options,
|
||||
POPT_CONTEXT_KEEP_FIRST);
|
||||
while ((poptGetNextOpt(pc) != -1)) /* noop */ ;
|
||||
|
||||
poptSetOtherOptionHelp(pc, "<NODE> ...");
|
||||
/* swallow argv[0] */
|
||||
poptGetArg(pc);
|
||||
|
||||
while ((opt = poptGetNextOpt(pc)) != -1) {
|
||||
switch (opt) {
|
||||
case 'B':
|
||||
bcast_addr = *interpret_addr2(poptGetOptArg(pc));
|
||||
got_bcast = True;
|
||||
use_bcast = True;
|
||||
break;
|
||||
case 'U':
|
||||
bcast_addr = *interpret_addr2(poptGetOptArg(pc));
|
||||
got_bcast = True;
|
||||
use_bcast = False;
|
||||
break;
|
||||
case 'T':
|
||||
translate_addresses = !translate_addresses;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if(!poptPeekArg(pc)) {
|
||||
poptPrintUsage(pc, stderr, 0);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
lp_load(dyn_CONFIGFILE,True,False,False);
|
||||
load_interfaces();
|
||||
|
||||
while (poptPeekArg(pc)) {
|
||||
const char *name = poptGetArg(pc);
|
||||
|
||||
poptGetArg(pc); /* Remove argv[0] */
|
||||
process_one(name);
|
||||
}
|
||||
|
||||
if(!poptPeekArg(pc)) {
|
||||
poptPrintUsage(pc, stderr, 0);
|
||||
exit(1);
|
||||
}
|
||||
poptFreeContext(pc);
|
||||
|
||||
if (!lp_load(dyn_CONFIGFILE,True,False,False)) {
|
||||
fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
|
||||
}
|
||||
|
||||
load_interfaces();
|
||||
if (!open_sockets()) return(1);
|
||||
|
||||
while(poptPeekArg(pc))
|
||||
{
|
||||
char *p;
|
||||
struct in_addr ip;
|
||||
|
||||
fstrcpy(lookup,poptGetArg(pc));
|
||||
|
||||
if(lookup_by_ip)
|
||||
{
|
||||
ip = *interpret_addr2(lookup);
|
||||
fstrcpy(lookup,"*");
|
||||
do_node_status(ServerFD, lookup, lookup_type, ip);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (find_master) {
|
||||
if (*lookup == '-') {
|
||||
fstrcpy(lookup,"\01\02__MSBROWSE__\02");
|
||||
lookup_type = 1;
|
||||
} else {
|
||||
lookup_type = 0x1d;
|
||||
}
|
||||
}
|
||||
|
||||
p = strchr_m(lookup,'#');
|
||||
if (p) {
|
||||
*p = '\0';
|
||||
sscanf(++p,"%x",&lookup_type);
|
||||
}
|
||||
|
||||
if (!query_one(lookup, lookup_type)) {
|
||||
d_printf( "name_query failed to find name %s", lookup );
|
||||
if( 0 != lookup_type )
|
||||
d_printf( "#%02x", lookup_type );
|
||||
d_printf( "\n" );
|
||||
}
|
||||
}
|
||||
|
||||
poptFreeContext(pc);
|
||||
|
||||
return(0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user