2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 1994-1998
5 Copyright (C) Richard Sharpe 2001
6 Copyright (C) John Terpstra 2001
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 * cli_send_mailslot, send a mailslot for client code ...
29 BOOL
cli_send_mailslot(BOOL unique
, const char *mailslot
,
32 const char *srcname
, int src_type
,
33 const char *dstname
, int dest_type
,
34 struct in_addr dest_ip
)
36 struct packet_struct p
;
37 struct dgram_packet
*dgram
= &p
.packet
.dgram
;
42 if ((nmbd_pid
= pidfile_pid("nmbd")) == 0) {
43 DEBUG(3, ("No nmbd found\n"));
50 memset((char *)&p
, '\0', sizeof(p
));
53 * Next, build the DGRAM ...
56 /* DIRECT GROUP or UNIQUE datagram. */
57 dgram
->header
.msg_type
= unique
? 0x10 : 0x11;
58 dgram
->header
.flags
.node_type
= M_NODE
;
59 dgram
->header
.flags
.first
= True
;
60 dgram
->header
.flags
.more
= False
;
61 dgram
->header
.dgm_id
= ((unsigned)time(NULL
)%(unsigned)0x7FFF) +
62 ((unsigned)sys_getpid()%(unsigned)100);
63 /* source ip is filled by nmbd */
64 dgram
->header
.dgm_length
= 0; /* Let build_dgram() handle this. */
65 dgram
->header
.packet_offset
= 0;
67 make_nmb_name(&dgram
->source_name
,srcname
,src_type
);
68 make_nmb_name(&dgram
->dest_name
,dstname
,dest_type
);
70 ptr
= &dgram
->data
[0];
72 /* Setup the smb part. */
73 ptr
-= 4; /* XXX Ugliness because of handling of tcp SMB length. */
75 set_message(ptr
,17,strlen(mailslot
) + 1 + len
,True
);
78 SCVAL(ptr
,smb_com
,SMBtrans
);
79 SSVAL(ptr
,smb_vwv1
,len
);
80 SSVAL(ptr
,smb_vwv11
,len
);
81 SSVAL(ptr
,smb_vwv12
,70 + strlen(mailslot
));
82 SSVAL(ptr
,smb_vwv13
,3);
83 SSVAL(ptr
,smb_vwv14
,1);
84 SSVAL(ptr
,smb_vwv15
,priority
);
85 SSVAL(ptr
,smb_vwv16
,2);
88 p2
= skip_string(p2
,1);
93 dgram
->datasize
= PTR_DIFF(p2
,ptr
+4); /* +4 for tcp length. */
95 p
.packet_type
= DGRAM_PACKET
;
97 p
.timestamp
= time(NULL
);
99 DEBUG(4,("send_mailslot: Sending to mailslot %s from %s ",
100 mailslot
, nmb_namestr(&dgram
->source_name
)));
101 DEBUGADD(4,("to %s IP %s\n", nmb_namestr(&dgram
->dest_name
),
102 inet_ntoa(dest_ip
)));
104 return NT_STATUS_IS_OK(message_send_pid(pid_to_procid(nmbd_pid
),
105 MSG_SEND_PACKET
, &p
, sizeof(p
),
110 * cli_get_response: Get a response ...
112 BOOL
cli_get_response(const char *mailslot
, char *buf
, int bufsiz
)
114 struct packet_struct
*p
;
116 p
= receive_unexpected(DGRAM_PACKET
, 0, mailslot
);
121 memcpy(buf
, &p
->packet
.dgram
.data
[92],
122 MIN(bufsiz
, p
->packet
.dgram
.datasize
-92));
128 * cli_get_backup_list: Send a get backup list request ...
131 static char cli_backup_list
[1024];
133 int cli_get_backup_list(const char *myname
, const char *send_to_name
)
137 struct in_addr sendto_ip
;
139 if (!resolve_name(send_to_name
, &sendto_ip
, 0x1d)) {
141 DEBUG(0, ("Could not resolve name: %s<1D>\n", send_to_name
));
146 memset(cli_backup_list
, '\0', sizeof(cli_backup_list
));
147 memset(outbuf
, '\0', sizeof(outbuf
));
151 SCVAL(p
, 0, ANN_GetBackupListReq
);
154 SCVAL(p
, 0, 1); /* Count pointer ... */
157 SIVAL(p
, 0, 1); /* The sender's token ... */
160 cli_send_mailslot(True
, "\\MAILSLOT\\BROWSE", 1, outbuf
,
161 PTR_DIFF(p
, outbuf
), myname
, 0, send_to_name
,
164 /* We should check the error and return if we got one */
166 /* Now, get the response ... */
168 cli_get_response("\\MAILSLOT\\BROWSE",
169 cli_backup_list
, sizeof(cli_backup_list
));
176 * cli_get_backup_server: Get the backup list and retrieve a server from it
179 int cli_get_backup_server(char *my_name
, char *target
, char *servername
, int namesize
)
182 /* Get the backup list first. We could pull this from the cache later */
184 cli_get_backup_list(my_name
, target
); /* FIXME: Check the response */
186 if (!cli_backup_list
[0]) { /* Empty list ... try again */
188 cli_get_backup_list(my_name
, target
);
192 strncpy(servername
, cli_backup_list
, MIN(16, namesize
));