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https://github.com/samba-team/samba.git
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54abd2aa66
* \PIPE\unixinfo
* winbindd's {group,alias}membership new functions
* winbindd's lookupsids() functionality
* swat (trunk changes to be reverted as per discussion with Deryck)
(This used to be commit 939c3cb5d7
)
196 lines
4.8 KiB
C
196 lines
4.8 KiB
C
/*
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Unix SMB/CIFS implementation.
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client dgram calls
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Copyright (C) Andrew Tridgell 1994-1998
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Copyright (C) Richard Sharpe 2001
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Copyright (C) John Terpstra 2001
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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/*
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* cli_send_mailslot, send a mailslot for client code ...
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*/
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BOOL cli_send_mailslot(BOOL unique, const char *mailslot,
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uint16 priority,
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char *buf, int len,
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const char *srcname, int src_type,
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const char *dstname, int dest_type,
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struct in_addr dest_ip)
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{
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struct packet_struct p;
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struct dgram_packet *dgram = &p.packet.dgram;
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char *ptr, *p2;
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char tmp[4];
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pid_t nmbd_pid;
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if ((nmbd_pid = pidfile_pid("nmbd")) == 0) {
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DEBUG(3, ("No nmbd found\n"));
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return False;
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}
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if (!message_init())
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return False;
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memset((char *)&p, '\0', sizeof(p));
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/*
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* Next, build the DGRAM ...
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*/
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/* DIRECT GROUP or UNIQUE datagram. */
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dgram->header.msg_type = unique ? 0x10 : 0x11;
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dgram->header.flags.node_type = M_NODE;
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dgram->header.flags.first = True;
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dgram->header.flags.more = False;
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dgram->header.dgm_id = ((unsigned)time(NULL)%(unsigned)0x7FFF) +
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((unsigned)sys_getpid()%(unsigned)100);
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/* source ip is filled by nmbd */
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dgram->header.dgm_length = 0; /* Let build_dgram() handle this. */
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dgram->header.packet_offset = 0;
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make_nmb_name(&dgram->source_name,srcname,src_type);
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make_nmb_name(&dgram->dest_name,dstname,dest_type);
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ptr = &dgram->data[0];
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/* Setup the smb part. */
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ptr -= 4; /* XXX Ugliness because of handling of tcp SMB length. */
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memcpy(tmp,ptr,4);
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set_message(ptr,17,strlen(mailslot) + 1 + len,True);
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memcpy(ptr,tmp,4);
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SCVAL(ptr,smb_com,SMBtrans);
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SSVAL(ptr,smb_vwv1,len);
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SSVAL(ptr,smb_vwv11,len);
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SSVAL(ptr,smb_vwv12,70 + strlen(mailslot));
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SSVAL(ptr,smb_vwv13,3);
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SSVAL(ptr,smb_vwv14,1);
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SSVAL(ptr,smb_vwv15,priority);
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SSVAL(ptr,smb_vwv16,2);
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p2 = smb_buf(ptr);
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fstrcpy(p2,mailslot);
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p2 = skip_string(p2,1);
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memcpy(p2,buf,len);
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p2 += len;
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dgram->datasize = PTR_DIFF(p2,ptr+4); /* +4 for tcp length. */
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p.packet_type = DGRAM_PACKET;
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p.ip = dest_ip;
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p.timestamp = time(NULL);
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DEBUG(4,("send_mailslot: Sending to mailslot %s from %s ",
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mailslot, nmb_namestr(&dgram->source_name)));
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DEBUGADD(4,("to %s IP %s\n", nmb_namestr(&dgram->dest_name),
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inet_ntoa(dest_ip)));
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return message_send_pid(pid_to_procid(nmbd_pid), MSG_SEND_PACKET, &p, sizeof(p),
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False);
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}
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/*
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* cli_get_response: Get a response ...
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*/
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BOOL cli_get_response(const char *mailslot, char *buf, int bufsiz)
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{
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struct packet_struct *p;
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p = receive_unexpected(DGRAM_PACKET, 0, mailslot);
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if (p == NULL)
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return False;
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memcpy(buf, &p->packet.dgram.data[92],
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MIN(bufsiz, p->packet.dgram.datasize-92));
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return True;
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}
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/*
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* cli_get_backup_list: Send a get backup list request ...
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*/
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static char cli_backup_list[1024];
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int cli_get_backup_list(const char *myname, const char *send_to_name)
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{
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pstring outbuf;
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char *p;
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struct in_addr sendto_ip;
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if (!resolve_name(send_to_name, &sendto_ip, 0x1d)) {
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DEBUG(0, ("Could not resolve name: %s<1D>\n", send_to_name));
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return False;
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}
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memset(cli_backup_list, '\0', sizeof(cli_backup_list));
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memset(outbuf, '\0', sizeof(outbuf));
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p = outbuf;
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SCVAL(p, 0, ANN_GetBackupListReq);
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p++;
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SCVAL(p, 0, 1); /* Count pointer ... */
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p++;
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SIVAL(p, 0, 1); /* The sender's token ... */
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p += 4;
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cli_send_mailslot(True, "\\MAILSLOT\\BROWSE", 1, outbuf,
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PTR_DIFF(p, outbuf), myname, 0, send_to_name,
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0x1d, sendto_ip);
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/* We should check the error and return if we got one */
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/* Now, get the response ... */
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cli_get_response("\\MAILSLOT\\BROWSE",
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cli_backup_list, sizeof(cli_backup_list));
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return True;
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}
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/*
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* cli_get_backup_server: Get the backup list and retrieve a server from it
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*/
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int cli_get_backup_server(char *my_name, char *target, char *servername, int namesize)
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{
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/* Get the backup list first. We could pull this from the cache later */
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cli_get_backup_list(my_name, target); /* FIXME: Check the response */
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if (!cli_backup_list[0]) { /* Empty list ... try again */
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cli_get_backup_list(my_name, target);
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}
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strncpy(servername, cli_backup_list, MIN(16, namesize));
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return True;
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}
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