Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 468 insertions, 0 deletions

diff --git a/source3/utils/nmblookup.c b/source3/utils/nmblookup.c
new file mode 100644
index 0000000..a78967f
--- /dev/null
+++ b/source3/utils/nmblookup.c
@@ -0,0 +1,468 @@
+/*
+   Unix SMB/CIFS implementation.
+   NBT client - used to lookup netbios names
+   Copyright (C) Andrew Tridgell 1994-1998
+   Copyright (C) Jelmer Vernooij 2003 (Conversion to popt)
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "includes.h"
+#include "lib/cmdline/cmdline.h"
+#include "libsmb/nmblib.h"
+#include "libsmb/namequery.h"
+#include "lib/util/string_wrappers.h"
+
+static bool give_flags = false;
+static bool use_bcast = true;
+static bool got_bcast = false;
+static struct sockaddr_storage bcast_addr;
+static bool recursion_desired = false;
+static bool translate_addresses = false;
+static int ServerFD= -1;
+static bool RootPort = false;
+static bool find_status = false;
+
+/****************************************************************************
+ Open the socket communication.
+**************************************************************************/
+
+static bool open_sockets(void)
+{
+	struct sockaddr_storage ss;
+	const char *sock_addr = lp_nbt_client_socket_address();
+
+	if (!interpret_string_addr(&ss, sock_addr,
+				AI_NUMERICHOST|AI_PASSIVE)) {
+		DEBUG(0,("open_sockets: unable to get socket address "
+					"from string %s", sock_addr));
+		return false;
+	}
+	ServerFD = open_socket_in(
+		SOCK_DGRAM, &ss, (RootPort ? 137 : 0), true);
+	if (ServerFD < 0) {
+		if (RootPort) {
+			DBG_ERR("open_socket_in failed: %s\n",
+				strerror(-ServerFD));
+		} else {
+			DBG_NOTICE("open_socket_in failed: %s\n",
+				   strerror(-ServerFD));
+		}
+		return false;
+	}
+
+	set_socket_options( ServerFD, "SO_BROADCAST" );
+
+	DEBUG(3, ("Socket opened.\n"));
+	return true;
+}
+
+/****************************************************************************
+turn a node status flags field into a string
+****************************************************************************/
+static char *node_status_flags(unsigned char flags)
+{
+	static fstring ret;
+	fstrcpy(ret,"");
+
+	fstrcat(ret, (flags & 0x80) ? "<GROUP> " : "        ");
+	if ((flags & 0x60) == 0x00) fstrcat(ret,"B ");
+	if ((flags & 0x60) == 0x20) fstrcat(ret,"P ");
+	if ((flags & 0x60) == 0x40) fstrcat(ret,"M ");
+	if ((flags & 0x60) == 0x60) fstrcat(ret,"H ");
+	if (flags & 0x10) fstrcat(ret,"<DEREGISTERING> ");
+	if (flags & 0x08) fstrcat(ret,"<CONFLICT> ");
+	if (flags & 0x04) fstrcat(ret,"<ACTIVE> ");
+	if (flags & 0x02) fstrcat(ret,"<PERMANENT> ");
+
+	return ret;
+}
+
+/****************************************************************************
+ Turn the NMB Query flags into a string.
+****************************************************************************/
+
+static char *query_flags(int flags)
+{
+	static fstring ret1;
+	fstrcpy(ret1, "");
+
+	if (flags & NM_FLAGS_RS) fstrcat(ret1, "Response ");
+	if (flags & NM_FLAGS_AA) fstrcat(ret1, "Authoritative ");
+	if (flags & NM_FLAGS_TC) fstrcat(ret1, "Truncated ");
+	if (flags & NM_FLAGS_RD) fstrcat(ret1, "Recursion_Desired ");
+	if (flags & NM_FLAGS_RA) fstrcat(ret1, "Recursion_Available ");
+	if (flags & NM_FLAGS_B)  fstrcat(ret1, "Broadcast ");
+
+	return ret1;
+}
+
+/****************************************************************************
+ Do a node status query.
+****************************************************************************/
+
+static bool do_node_status(const char *name,
+		int type,
+		struct sockaddr_storage *pss)
+{
+	struct nmb_name nname;
+	size_t count = 0;
+	size_t i, j;
+	struct node_status *addrs;
+	struct node_status_extra extra;
+	fstring cleanname;
+	char addr[INET6_ADDRSTRLEN];
+	NTSTATUS status;
+
+	print_sockaddr(addr, sizeof(addr), pss);
+	d_printf("Looking up status of %s\n",addr);
+	make_nmb_name(&nname, name, type);
+	status = node_status_query(talloc_tos(), &nname, pss,
+				   &addrs, &count, &extra);
+	if (NT_STATUS_IS_OK(status)) {
+		for (i=0;i<count;i++) {
+			pull_ascii_fstring(cleanname, addrs[i].name);
+			for (j=0;cleanname[j];j++) {
+				if (!isprint((int)cleanname[j])) {
+					cleanname[j] = '.';
+				}
+			}
+			d_printf("\t%-15s <%02x> - %s\n",
+			       cleanname,addrs[i].type,
+			       node_status_flags(addrs[i].flags));
+		}
+		d_printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
+				extra.mac_addr[0], extra.mac_addr[1],
+				extra.mac_addr[2], extra.mac_addr[3],
+				extra.mac_addr[4], extra.mac_addr[5]);
+		d_printf("\n");
+		TALLOC_FREE(addrs);
+		return true;
+	} else {
+		d_printf("No reply from %s\n\n",addr);
+		return false;
+	}
+}
+
+
+/****************************************************************************
+ Send out one query.
+****************************************************************************/
+
+static bool query_one(const char *lookup, unsigned int lookup_type)
+{
+	size_t j, count = 0;
+	uint8_t flags;
+	struct sockaddr_storage *ip_list=NULL;
+	NTSTATUS status = NT_STATUS_NOT_FOUND;
+
+	if (got_bcast) {
+		char addr[INET6_ADDRSTRLEN];
+		print_sockaddr(addr, sizeof(addr), &bcast_addr);
+		d_printf("querying %s on %s\n", lookup, addr);
+		status = name_query(lookup,lookup_type,use_bcast,
+				    use_bcast?true:recursion_desired,
+				    &bcast_addr, talloc_tos(),
+				    &ip_list, &count, &flags);
+	} else {
+		status = name_resolve_bcast(talloc_tos(),
+					    lookup,
+					    lookup_type,
+					    &ip_list,
+					    &count);
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		return false;
+	}
+
+	if (give_flags) {
+		d_printf("Flags: %s\n", query_flags(flags));
+	}
+
+	for (j=0;j<count;j++) {
+		char addr[INET6_ADDRSTRLEN];
+		if (translate_addresses) {
+			char h_name[MAX_DNS_NAME_LENGTH];
+			h_name[0] = '\0';
+			if (sys_getnameinfo((const struct sockaddr *)&ip_list[j],
+					sizeof(struct sockaddr_storage),
+					h_name, sizeof(h_name),
+					NULL, 0,
+					NI_NAMEREQD)) {
+				continue;
+			}
+			d_printf("%s, ", h_name);
+		}
+		print_sockaddr(addr, sizeof(addr), &ip_list[j]);
+		d_printf("%s %s<%02x>\n", addr,lookup, lookup_type);
+		/* We can only do find_status if the ip address returned
+		   was valid - ie. name_query returned true.
+		 */
+		if (find_status) {
+			if (!do_node_status(lookup, lookup_type, &ip_list[j])) {
+				status = NT_STATUS_UNSUCCESSFUL;
+			}
+		}
+	}
+
+	TALLOC_FREE(ip_list);
+
+	return NT_STATUS_IS_OK(status);
+}
+
+
+/****************************************************************************
+  main program
+****************************************************************************/
+enum nmblookup_cmdline_options {
+	CMDLINE_RECURSIVE = 1,
+};
+
+int main(int argc, const char *argv[])
+{
+	int opt;
+	unsigned int lookup_type = 0x0;
+	fstring lookup;
+	static bool find_master=False;
+	static bool lookup_by_ip = False;
+	poptContext pc = NULL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	int rc = 0;
+	bool ok;
+
+	struct poptOption long_options[] = {
+		POPT_AUTOHELP
+		{
+			.longName   = "broadcast",
+			.shortName  = 'B',
+			.argInfo    = POPT_ARG_STRING,
+			.arg        = NULL,
+			.val        = 'B',
+			.descrip    = "Specify address to use for broadcasts",
+			.argDescrip = "BROADCAST-ADDRESS",
+		},
+		{
+			.longName   = "flags",
+			.shortName  = 'f',
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = 'f',
+			.descrip    = "List the NMB flags returned",
+		},
+		{
+			.longName   = "unicast",
+			.shortName  = 'U',
+			.argInfo    = POPT_ARG_STRING,
+			.arg        = NULL,
+			.val        = 'U',
+			.descrip    = "Specify address to use for unicast",
+		},
+		{
+			.longName   = "master-browser",
+			.shortName  = 'M',
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = 'M',
+			.descrip    = "Search for a master browser",
+		},
+		{
+			.longName   = "recursion",
+			.shortName  = 0,
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = CMDLINE_RECURSIVE,
+			.descrip    = "Set recursion desired in package",
+		},
+		{
+			.longName   = "status",
+			.shortName  = 'S',
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = 'S',
+			.descrip    = "Lookup node status as well",
+		},
+		{
+			.longName   = "translate",
+			.shortName  = 'T',
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = 'T',
+			.descrip    = "Translate IP addresses into names",
+		},
+		{
+			.longName   = "root-port",
+			.shortName  = 'r',
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = 'r',
+			.descrip    = "Use root port 137 (Win95 only replies to this)",
+		},
+		{
+			.longName   = "lookup-by-ip",
+			.shortName  = 'A',
+			.argInfo    = POPT_ARG_NONE,
+			.arg        = NULL,
+			.val        = 'A',
+			.descrip    = "Do a node status on <name> as an IP Address",
+		},
+		POPT_COMMON_SAMBA
+		POPT_COMMON_CONNECTION
+		POPT_COMMON_VERSION
+		POPT_TABLEEND
+	};
+
+	*lookup = 0;
+
+	smb_init_locale();
+
+	ok = samba_cmdline_init(frame,
+				SAMBA_CMDLINE_CONFIG_CLIENT,
+				false /* require_smbconf */);
+	if (!ok) {
+		DBG_ERR("Failed to init cmdline parser!\n");
+		TALLOC_FREE(frame);
+		exit(1);
+	}
+
+	pc = samba_popt_get_context(getprogname(),
+				    argc,
+				    argv,
+				    long_options,
+				    POPT_CONTEXT_KEEP_FIRST);
+	if (pc == NULL) {
+		DBG_ERR("Failed to setup popt context!\n");
+		TALLOC_FREE(frame);
+		exit(1);
+	}
+
+	poptSetOtherOptionHelp(pc, "<NODE> ...");
+
+	while ((opt = poptGetNextOpt(pc)) != -1) {
+		switch (opt) {
+		case 'f':
+			give_flags = true;
+			break;
+		case 'M':
+			find_master = true;
+			break;
+		case CMDLINE_RECURSIVE:
+			recursion_desired = true;
+			break;
+		case 'S':
+			find_status = true;
+			break;
+		case 'r':
+			RootPort = true;
+			break;
+		case 'A':
+			lookup_by_ip = true;
+			break;
+		case 'B':
+			if (interpret_string_addr(&bcast_addr,
+					poptGetOptArg(pc),
+					NI_NUMERICHOST)) {
+				got_bcast = True;
+				use_bcast = True;
+			}
+			break;
+		case 'U':
+			if (interpret_string_addr(&bcast_addr,
+					poptGetOptArg(pc),
+					0)) {
+				got_bcast = True;
+				use_bcast = False;
+			}
+			break;
+		case 'T':
+			translate_addresses = !translate_addresses;
+			break;
+		case POPT_ERROR_BADOPT:
+			fprintf(stderr, "\nInvalid option %s: %s\n\n",
+				poptBadOption(pc, 0), poptStrerror(opt));
+			poptPrintUsage(pc, stderr, 0);
+			exit(1);
+		}
+	}
+
+	poptGetArg(pc); /* Remove argv[0] */
+
+	if(!poptPeekArg(pc)) {
+		poptPrintUsage(pc, stderr, 0);
+		rc = 1;
+		goto out;
+	}
+
+	if (!open_sockets()) {
+		rc = 1;
+		goto out;
+	}
+
+	while(poptPeekArg(pc)) {
+		char *p;
+		struct in_addr ip;
+		size_t nbt_len;
+
+		fstrcpy(lookup,poptGetArg(pc));
+
+		if(lookup_by_ip) {
+			struct sockaddr_storage ss;
+			ip = interpret_addr2(lookup);
+			in_addr_to_sockaddr_storage(&ss, ip);
+			fstrcpy(lookup,"*");
+			if (!do_node_status(lookup, lookup_type, &ss)) {
+				rc = 1;
+			}
+			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);
+		}
+
+		nbt_len = strlen(lookup);
+		if (nbt_len > MAX_NETBIOSNAME_LEN - 1) {
+			d_printf("The specified netbios name [%s] is too long!\n",
+				 lookup);
+			continue;
+		}
+
+
+		if (!query_one(lookup, lookup_type)) {
+			rc = 1;
+			d_printf( "name_query failed to find name %s", lookup );
+			if( 0 != lookup_type ) {
+				d_printf( "#%02x", lookup_type );
+			}
+			d_printf( "\n" );
+		}
+	}
+
+out:
+	poptFreeContext(pc);
+	TALLOC_FREE(frame);
+	return rc;
+}