diff options
Diffstat (limited to 'source4/nmbd/nmbd_incomingdgrams.c')
| -rw-r--r-- | source4/nmbd/nmbd_incomingdgrams.c | 858 |
1 files changed, 0 insertions, 858 deletions
diff --git a/source4/nmbd/nmbd_incomingdgrams.c b/source4/nmbd/nmbd_incomingdgrams.c deleted file mode 100644 index 3000c347d8..0000000000 --- a/source4/nmbd/nmbd_incomingdgrams.c +++ /dev/null @@ -1,858 +0,0 @@ -/* - Unix SMB/CIFS implementation. - NBT netbios routines and daemon - version 2 - Copyright (C) Andrew Tridgell 1994-1998 - Copyright (C) Luke Kenneth Casson Leighton 1994-1998 - Copyright (C) Jeremy Allison 1994-1998 - - 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., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -#include "includes.h" - -extern BOOL found_lm_clients; - -#if 0 - -/* XXXX note: This function is currently unsuitable for use, as it - does not properly check that a server is in a fit state to become - a backup browser before asking it to be one. - The code is left here to be worked on at a later date. -*/ - -/**************************************************************************** -Tell a server to become a backup browser -**************************************************************************/ - -void tell_become_backup(void) -{ - struct subnet_record *subrec; - for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) - { - struct work_record *work; - for (work = subrec->workgrouplist; work; work = work->next) - { - struct server_record *servrec; - int num_servers = 0; - int num_backups = 0; - - for (servrec = work->serverlist; servrec; servrec = servrec->next) - { - num_servers++; - - if (is_myname(servrec->serv.name)) - continue; - - if (servrec->serv.type & SV_TYPE_BACKUP_BROWSER) - { - num_backups++; - continue; - } - - if (servrec->serv.type & SV_TYPE_MASTER_BROWSER) - continue; - - if (!(servrec->serv.type & SV_TYPE_POTENTIAL_BROWSER)) - continue; - - DEBUG(3,("num servers: %d num backups: %d\n", - num_servers, num_backups)); - - /* make first server a backup server. thereafter make every - tenth server a backup server */ - if (num_backups != 0 && (num_servers+9) / num_backups > 10) - continue; - - DEBUG(2,("sending become backup to %s %s for %s\n", - servrec->serv.name, inet_ntoa(subrec->bcast_ip), - work->work_group)); - - /* type 11 request from MYNAME(20) to WG(1e) for SERVER */ - do_announce_request(servrec->serv.name, work->work_group, - ANN_BecomeBackup, 0x20, 0x1e, subrec->bcast_ip); - } - } - } -} -#endif - -/******************************************************************* - Process an incoming host announcement packet. -*******************************************************************/ - -void process_host_announce(struct subnet_record *subrec, struct packet_struct *p, char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - int ttl = IVAL(buf,1)/1000; - char *announce_name = buf+5; - uint32 servertype = IVAL(buf,23); - char *comment = buf+31; - struct work_record *work; - struct server_record *servrec; - const char *work_name; - char *source_name = dgram->source_name.name; - - START_PROFILE(host_announce); - comment[43] = 0; - - DEBUG(3,("process_host_announce: from %s<%02x> IP %s to \ -%s for server %s.\n", source_name, source_name[15], inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name),announce_name)); - - DEBUG(5,("process_host_announce: ttl=%d server type=%08x comment=%s\n", - ttl, servertype,comment)); - - /* Filter servertype to remove impossible bits. */ - servertype &= ~(SV_TYPE_LOCAL_LIST_ONLY|SV_TYPE_DOMAIN_ENUM); - - /* A host announcement must be sent to the name WORKGROUP<1d>. */ - if(dgram->dest_name.name_type != 0x1d) - { - DEBUG(2,("process_host_announce: incorrect name type for destination from IP %s \ -(was %02x) should be 0x1d. Allowing packet anyway.\n", - inet_ntoa(p->ip), dgram->dest_name.name_type)); - /* Change it so it was. */ - dgram->dest_name.name_type = 0x1d; - } - - /* For a host announce the workgroup name is the destination name. */ - work_name = dgram->dest_name.name; - - /* - * Syntax servers version 5.1 send HostAnnounce packets to - * *THE WRONG NAME*. They send to LOCAL_MASTER_BROWSER_NAME<00> - * instead of WORKGROUP<1d> name. So to fix this we check if - * the workgroup name is our own name, and if so change it - * to be our primary workgroup name. - */ - - if(strequal(work_name, lp_netbios_name())) - work_name = lp_workgroup(); - - /* - * We are being very agressive here in adding a workgroup - * name on the basis of a host announcing itself as being - * in that workgroup. Maybe we should wait for the workgroup - * announce instead ? JRA. - */ - - work = find_workgroup_on_subnet(subrec, work_name); - - if(servertype != 0) - { - if (work ==NULL ) - { - /* We have no record of this workgroup. Add it. */ - if((work = create_workgroup_on_subnet(subrec, work_name, ttl))==NULL) - goto done; - } - - if((servrec = find_server_in_workgroup( work, announce_name))==NULL) - { - /* If this server is not already in the workgroup, add it. */ - create_server_on_workgroup(work, announce_name, - servertype|SV_TYPE_LOCAL_LIST_ONLY, - ttl, comment); - } - else - { - /* Update the record. */ - servrec->serv.type = servertype|SV_TYPE_LOCAL_LIST_ONLY; - update_server_ttl( servrec, ttl); - StrnCpy(servrec->serv.comment,comment,sizeof(servrec->serv.comment)-1); - } - } - else - { - /* - * This server is announcing it is going down. Remove it from the - * workgroup. - */ - if(!is_myname(announce_name) && (work != NULL) && - ((servrec = find_server_in_workgroup( work, announce_name))!=NULL) - ) - { - remove_server_from_workgroup( work, servrec); - } - } - subrec->work_changed = True; -done: - END_PROFILE(host_announce); -} - -/******************************************************************* - Process an incoming WORKGROUP announcement packet. -*******************************************************************/ - -void process_workgroup_announce(struct subnet_record *subrec, struct packet_struct *p, char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - int ttl = IVAL(buf,1)/1000; - char *workgroup_announce_name = buf+5; - uint32 servertype = IVAL(buf,23); - char *master_name = buf+31; - struct work_record *work; - char *source_name = dgram->source_name.name; - - START_PROFILE(workgroup_announce); - master_name[43] = 0; - - DEBUG(3,("process_workgroup_announce: from %s<%02x> IP %s to \ -%s for workgroup %s.\n", source_name, source_name[15], inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name),workgroup_announce_name)); - - DEBUG(5,("process_workgroup_announce: ttl=%d server type=%08x master browser=%s\n", - ttl, servertype, master_name)); - - /* Workgroup announcements must only go to the MSBROWSE name. */ - if (!strequal(dgram->dest_name.name, MSBROWSE) || (dgram->dest_name.name_type != 0x1)) - { - DEBUG(0,("process_workgroup_announce: from IP %s should be to __MSBROWSE__<0x01> not %s\n", - inet_ntoa(p->ip), nmb_namestr(&dgram->dest_name))); - goto done; - } - - if ((work = find_workgroup_on_subnet(subrec, workgroup_announce_name))==NULL) - { - /* We have no record of this workgroup. Add it. */ - if((work = create_workgroup_on_subnet(subrec, workgroup_announce_name, ttl))==NULL) - goto done; - } - else - { - /* Update the workgroup death_time. */ - update_workgroup_ttl(work, ttl); - } - - if(*work->local_master_browser_name == '\0') - { - /* Set the master browser name. */ - set_workgroup_local_master_browser_name( work, master_name ); - } - - subrec->work_changed = True; -done: - END_PROFILE(workgroup_announce); -} - -/******************************************************************* - Process an incoming local master browser announcement packet. -*******************************************************************/ - -void process_local_master_announce(struct subnet_record *subrec, struct packet_struct *p, char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - int ttl = IVAL(buf,1)/1000; - char *server_name = buf+5; - uint32 servertype = IVAL(buf,23); - char *comment = buf+31; - char *work_name; - struct work_record *work; - struct server_record *servrec; - char *source_name = dgram->source_name.name; - - START_PROFILE(local_master_announce); - comment[43] = 0; - - DEBUG(3,("process_local_master_announce: from %s<%02x> IP %s to \ -%s for server %s.\n", source_name, source_name[15], inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name),server_name)); - - DEBUG(5,("process_local_master_announce: ttl=%d server type=%08x comment=%s\n", - ttl, servertype, comment)); - - /* A local master announcement must be sent to the name WORKGROUP<1e>. */ - if(dgram->dest_name.name_type != 0x1e) - { - DEBUG(0,("process_local_master_announce: incorrect name type for destination from IP %s \ -(was %02x) should be 0x1e. Ignoring packet.\n", - inet_ntoa(p->ip), dgram->dest_name.name_type)); - goto done; - } - - /* Filter servertype to remove impossible bits. */ - servertype &= ~(SV_TYPE_LOCAL_LIST_ONLY|SV_TYPE_DOMAIN_ENUM); - - /* For a local master announce the workgroup name is the destination name. */ - work_name = dgram->dest_name.name; - - if ((work = find_workgroup_on_subnet(subrec, work_name))==NULL) - { - /* Don't bother adding if it's a local master release announce. */ - if(servertype == 0) - goto done; - - /* We have no record of this workgroup. Add it. */ - if((work = create_workgroup_on_subnet(subrec, work_name, ttl))==NULL) - goto done; - } - - /* If we think we're the local master browser for this workgroup, - we should never have got this packet. We don't see our own - packets. - */ - if(AM_LOCAL_MASTER_BROWSER(work)) - { - DEBUG(0,("process_local_master_announce: Server %s at IP %s is announcing itself as \ -a local master browser for workgroup %s and we think we are master. Forcing election.\n", - server_name, inet_ntoa(p->ip), work_name)); - - /* Samba nmbd versions 1.9.17 to 1.9.17p4 have a bug in that when - they have become a local master browser once, they will never - stop sending local master announcements. To fix this we send - them a reset browser packet, with level 0x2 on the __SAMBA__ - name that only they should be listening to. */ - - send_browser_reset( 0x2, "__SAMBA__" , 0x20, p->ip); - - /* We should demote ourself and force an election. */ - - unbecome_local_master_browser( subrec, work, True); - - /* The actual election requests are handled in - nmbd_election.c */ - goto done; - } - - /* Find the server record on this workgroup. If it doesn't exist, add it. */ - - if(servertype != 0) - { - if((servrec = find_server_in_workgroup( work, server_name))==NULL) - { - /* If this server is not already in the workgroup, add it. */ - create_server_on_workgroup(work, server_name, - servertype|SV_TYPE_LOCAL_LIST_ONLY, - ttl, comment); - } - else - { - /* Update the record. */ - servrec->serv.type = servertype|SV_TYPE_LOCAL_LIST_ONLY; - update_server_ttl(servrec, ttl); - StrnCpy(servrec->serv.comment,comment,sizeof(servrec->serv.comment)-1); - } - - set_workgroup_local_master_browser_name( work, server_name ); - } - else - { - /* - * This server is announcing it is going down. Remove it from the - * workgroup. - */ - if(!is_myname(server_name) && (work != NULL) && - ((servrec = find_server_in_workgroup( work, server_name))!=NULL) - ) - { - remove_server_from_workgroup( work, servrec); - } - } - - subrec->work_changed = True; -done: - END_PROFILE(local_master_announce); -} - -/******************************************************************* - Process a domain master announcement frame. - Domain master browsers receive these from local masters. The Domain - master should then issue a sync with the local master, asking for - that machines local server list. -******************************************************************/ - -void process_master_browser_announce(struct subnet_record *subrec, - struct packet_struct *p,char *buf) -{ - char *local_master_name = buf; - struct work_record *work; - struct browse_cache_record *browrec; - - START_PROFILE(master_browser_announce); - local_master_name[15] = 0; - - DEBUG(3,("process_master_browser_announce: Local master announce from %s IP %s.\n", - local_master_name, inet_ntoa(p->ip))); - - if (!lp_domain_master()) - { - DEBUG(0,("process_master_browser_announce: Not configured as domain \ -master - ignoring master announce.\n")); - goto done; - } - - if((work = find_workgroup_on_subnet(subrec, lp_workgroup())) == NULL) - { - DEBUG(0,("process_master_browser_announce: Cannot find workgroup %s on subnet %s\n", - lp_workgroup(), subrec->subnet_name)); - goto done; - } - - if(!AM_DOMAIN_MASTER_BROWSER(work)) - { - DEBUG(0,("process_master_browser_announce: Local master announce made to us from \ -%s IP %s and we are not a domain master browser.\n", local_master_name, inet_ntoa(p->ip))); - goto done; - } - - /* Add this host as a local master browser entry on the browse lists. - This causes a sync request to be made to it at a later date. - */ - - if((browrec = find_browser_in_lmb_cache( local_master_name )) == NULL) - { - /* Add it. */ - create_browser_in_lmb_cache( work->work_group, local_master_name, p->ip); - } - else - update_browser_death_time(browrec); -done: - END_PROFILE(master_browser_announce); -} - -/******************************************************************* - Process an incoming LanMan host announcement packet. -*******************************************************************/ - -void process_lm_host_announce(struct subnet_record *subrec, struct packet_struct *p, char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - uint32 servertype = IVAL(buf,1); - int osmajor=CVAL(buf,5); /* major version of node software */ - int osminor=CVAL(buf,6); /* minor version of node software */ - int ttl = SVAL(buf,7); - char *announce_name = buf+9; - struct work_record *work; - struct server_record *servrec; - const char *work_name; - char *source_name = dgram->source_name.name; - pstring comment; - char *s = buf+9; - - START_PROFILE(lm_host_announce); - s = skip_string(s,1); - StrnCpy(comment, s, 43); - - DEBUG(3,("process_lm_host_announce: LM Announcement from %s<%02x> IP %s to \ -%s for server %s.\n", source_name, source_name[15], inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name),announce_name)); - - DEBUG(5,("process_lm_host_announce: os=(%d,%d) ttl=%d server type=%08x comment=%s\n", - osmajor, osminor, ttl, servertype,comment)); - - if ((osmajor < 36) || (osmajor > 38) || (osminor !=0)) - { - DEBUG(5,("process_lm_host_announce: LM Announcement packet does not \ -originate from OS/2 Warp client. Ignoring packet.\n")); - /* Could have been from a Windows machine (with its LM Announce enabled), - or a Samba server. Then don't disrupt the current browse list. */ - goto done; - } - - /* Filter servertype to remove impossible bits. */ - servertype &= ~(SV_TYPE_LOCAL_LIST_ONLY|SV_TYPE_DOMAIN_ENUM); - - /* A LanMan host announcement must be sent to the name WORKGROUP<00>. */ - if(dgram->dest_name.name_type != 0x00) - { - DEBUG(2,("process_lm_host_announce: incorrect name type for destination from IP %s \ -(was %02x) should be 0x00. Allowing packet anyway.\n", - inet_ntoa(p->ip), dgram->dest_name.name_type)); - /* Change it so it was. */ - dgram->dest_name.name_type = 0x00; - } - - /* For a LanMan host announce the workgroup name is the destination name. */ - work_name = dgram->dest_name.name; - - /* - * Syntax servers version 5.1 send HostAnnounce packets to - * *THE WRONG NAME*. They send to LOCAL_MASTER_BROWSER_NAME<00> - * instead of WORKGROUP<1d> name. So to fix this we check if - * the workgroup name is our own name, and if so change it - * to be our primary workgroup name. This code is probably - * not needed in the LanMan announce code, but it won't hurt. - */ - - if(strequal(work_name, lp_netbios_name())) - work_name = lp_workgroup(); - - /* - * We are being very agressive here in adding a workgroup - * name on the basis of a host announcing itself as being - * in that workgroup. Maybe we should wait for the workgroup - * announce instead ? JRA. - */ - - work = find_workgroup_on_subnet(subrec, work_name); - - if(servertype != 0) - { - if (work == NULL) - { - /* We have no record of this workgroup. Add it. */ - if((work = create_workgroup_on_subnet(subrec, work_name, ttl))==NULL) - goto done; - } - - if((servrec = find_server_in_workgroup( work, announce_name))==NULL) - { - /* If this server is not already in the workgroup, add it. */ - create_server_on_workgroup(work, announce_name, - servertype|SV_TYPE_LOCAL_LIST_ONLY, - ttl, comment); - } - else - { - /* Update the record. */ - servrec->serv.type = servertype|SV_TYPE_LOCAL_LIST_ONLY; - update_server_ttl( servrec, ttl); - StrnCpy(servrec->serv.comment,comment,sizeof(servrec->serv.comment)-1); - } - } - else - { - /* - * This server is announcing it is going down. Remove it from the - * workgroup. - */ - if(!is_myname(announce_name) && (work != NULL) && - ((servrec = find_server_in_workgroup( work, announce_name))!=NULL) - ) - { - remove_server_from_workgroup( work, servrec); - } - } - - subrec->work_changed = True; - found_lm_clients = True; -done: - END_PROFILE(lm_host_announce); -} - -/**************************************************************************** - Send a backup list response. -*****************************************************************************/ -static void send_backup_list_response(struct subnet_record *subrec, - struct work_record *work, - struct nmb_name *send_to_name, - unsigned char max_number_requested, - uint32 token, struct in_addr sendto_ip, - int port) -{ - char outbuf[1024]; - char *p, *countptr; - unsigned int count = 0; -#if 0 - struct server_record *servrec; -#endif - - memset(outbuf,'\0',sizeof(outbuf)); - - DEBUG(3,("send_backup_list_response: sending backup list for workgroup %s to %s IP %s\n", - work->work_group, nmb_namestr(send_to_name), inet_ntoa(sendto_ip))); - - p = outbuf; - - SCVAL(p,0,ANN_GetBackupListResp); /* Backup list response opcode. */ - p++; - - countptr = p; - p++; - - SIVAL(p,0,token); /* The sender's unique info. */ - p += 4; - - /* We always return at least one name - our own. */ - count = 1; - StrnCpy(p,lp_netbios_name(),15); - strupper(p); - p = skip_string(p,1); - - /* Look for backup browsers in this workgroup. */ - -#if 0 - /* we don't currently send become_backup requests so we should never - send any other servers names out as backups for our - workgroup. That's why this is commented out (tridge) */ - - /* - * NB. Note that the struct work_record here is not neccessarily - * attached to the subnet *subrec. - */ - - for (servrec = work->serverlist; servrec; servrec = servrec->next) - { - int len = PTR_DIFF(p, outbuf); - if((sizeof(outbuf) - len) < 16) - break; - - if(count >= (unsigned int)max_number_requested) - break; - - if(strnequal(servrec->serv.name, lp_netbios_name(),15)) - continue; - - if(!(servrec->serv.type & SV_TYPE_BACKUP_BROWSER)) - continue; - - StrnCpy(p, servrec->serv.name, 15); - strupper(p); - count++; - - DEBUG(5,("send_backup_list_response: Adding server %s number %d\n", - p, count)); - - p = skip_string(p,1); - } -#endif - - SCVAL(countptr, 0, count); - - DEBUG(4,("send_backup_list_response: sending response to %s<00> IP %s with %d servers.\n", - send_to_name->name, inet_ntoa(sendto_ip), count)); - - send_mailslot(True, BROWSE_MAILSLOT, - outbuf,PTR_DIFF(p,outbuf), - lp_netbios_name(), 0, - send_to_name->name,0, - sendto_ip, subrec->myip, port); -} - -/******************************************************************* - Process a send backup list request packet. - - A client sends a backup list request to ask for a list of servers on - the net that maintain server lists for a domain. A server is then - chosen from this list to send NetServerEnum commands to to list - available servers. - -********************************************************************/ - -void process_get_backup_list_request(struct subnet_record *subrec, - struct packet_struct *p,char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - struct work_record *work; - unsigned char max_number_requested = CVAL(buf,0); - uint32 token = IVAL(buf,1); /* Sender's key index for the workgroup. */ - int name_type = dgram->dest_name.name_type; - char *workgroup_name = dgram->dest_name.name; - struct subnet_record *search_subrec = subrec; - - START_PROFILE(get_backup_list); - DEBUG(3,("process_get_backup_list_request: request from %s IP %s to %s.\n", - nmb_namestr(&dgram->source_name), inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name))); - - /* We have to be a master browser, or a domain master browser - for the requested workgroup. That means it must be our - workgroup. */ - - if(strequal(workgroup_name, lp_workgroup()) == False) - { - DEBUG(7,("process_get_backup_list_request: Ignoring announce request for workgroup %s.\n", - workgroup_name)); - goto done; - } - - if((work = find_workgroup_on_subnet(search_subrec, workgroup_name)) == NULL) - { - DEBUG(0,("process_get_backup_list_request: Cannot find workgroup %s on \ -subnet %s.\n", workgroup_name, search_subrec->subnet_name)); - goto done; - } - - /* - * If the packet was sent to WORKGROUP<1b> instead - * of WORKGROUP<1d> then it was unicast to us a domain master - * browser. Change search subrec to unicast. - */ - - if(name_type == 0x1b) - { - /* We must be a domain master browser in order to - process this packet. */ - - if(!AM_DOMAIN_MASTER_BROWSER(work)) - { - DEBUG(0,("process_get_backup_list_request: domain list requested for workgroup %s \ -and I am not a domain master browser.\n", workgroup_name)); - goto done; - } - - search_subrec = unicast_subnet; - } - else if (name_type == 0x1d) - { - /* We must be a local master browser in order to - process this packet. */ - - if(!AM_LOCAL_MASTER_BROWSER(work)) - { - DEBUG(0,("process_get_backup_list_request: domain list requested for workgroup %s \ -and I am not a local master browser.\n", workgroup_name)); - goto done; - } - } - else - { - DEBUG(0,("process_get_backup_list_request: Invalid name type %x - should be 0x1b or 0x1d.\n", - name_type)); - goto done; - } - - send_backup_list_response(subrec, work, &dgram->source_name, - max_number_requested, token, p->ip, p->port); -done: - END_PROFILE(get_backup_list); -} - -/******************************************************************* - Process a reset browser state packet. - - Diagnostic packet: - 0x1 - Stop being a master browser and become a backup browser. - 0x2 - Discard browse lists, stop being a master browser, try again. - 0x4 - Stop being a master browser forever. - -******************************************************************/ - -void process_reset_browser(struct subnet_record *subrec, - struct packet_struct *p,char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - int state = CVAL(buf,0); - struct subnet_record *sr; - - START_PROFILE(reset_browser); - DEBUG(1,("process_reset_browser: received diagnostic browser reset \ -request from %s IP %s state=0x%X\n", - nmb_namestr(&dgram->source_name), inet_ntoa(p->ip), state)); - - /* Stop being a local master browser on all our broadcast subnets. */ - if (state & 0x1) - { - for (sr = FIRST_SUBNET; sr; sr = NEXT_SUBNET_EXCLUDING_UNICAST(sr)) - { - struct work_record *work; - for (work = sr->workgrouplist; work; work = work->next) - { - if (AM_LOCAL_MASTER_BROWSER(work)) - unbecome_local_master_browser(sr, work, True); - } - } - } - - /* Discard our browse lists. */ - if (state & 0x2) - { - /* - * Calling expire_workgroups_and_servers with a -1 - * time causes all servers not marked with a PERMANENT_TTL - * on the workgroup lists to be discarded, and all - * workgroups with empty server lists to be discarded. - * This means we keep our own server names and workgroup - * as these have a PERMANENT_TTL. - */ - - expire_workgroups_and_servers(-1); - } - - /* Request to stop browsing altogether. */ - if (state & 0x4) - DEBUG(1,("process_reset_browser: ignoring request to stop being a browser.\n")); - - END_PROFILE(reset_browser); -} - -/******************************************************************* - Process an announcement request packet. - We don't respond immediately, we just check it's a request for - our workgroup and then set the flag telling the announce code - in nmbd_sendannounce.c:announce_my_server_names that an - announcement is needed soon. -******************************************************************/ - -void process_announce_request(struct subnet_record *subrec, struct packet_struct *p, char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - struct work_record *work; - char *workgroup_name = dgram->dest_name.name; - - START_PROFILE(announce_request); - DEBUG(3,("process_announce_request: Announce request from %s IP %s to %s.\n", - nmb_namestr(&dgram->source_name), inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name))); - - /* We only send announcement requests on our workgroup. */ - if(strequal(workgroup_name, lp_workgroup()) == False) - { - DEBUG(7,("process_announce_request: Ignoring announce request for workgroup %s.\n", - workgroup_name)); - goto done; - } - - if((work = find_workgroup_on_subnet(subrec, workgroup_name)) == NULL) - { - DEBUG(0,("process_announce_request: Unable to find workgroup %s on subnet !\n", - workgroup_name)); - goto done; - } - - work->needannounce = True; -done: - END_PROFILE(lm_host_announce); -} - -/******************************************************************* - Process a LanMan announcement request packet. - We don't respond immediately, we just check it's a request for - our workgroup and then set the flag telling that we have found - a LanMan client (DOS or OS/2) and that we will have to start - sending LanMan announcements (unless specifically disabled - through the "lm announce" parameter in smb.conf) -******************************************************************/ - -void process_lm_announce_request(struct subnet_record *subrec, struct packet_struct *p, char *buf) -{ - struct dgram_packet *dgram = &p->packet.dgram; - char *workgroup_name = dgram->dest_name.name; - - START_PROFILE(lm_announce_request); - DEBUG(3,("process_lm_announce_request: Announce request from %s IP %s to %s.\n", - nmb_namestr(&dgram->source_name), inet_ntoa(p->ip), - nmb_namestr(&dgram->dest_name))); - - /* We only send announcement requests on our workgroup. */ - if(strequal(workgroup_name, lp_workgroup()) == False) - { - DEBUG(7,("process_lm_announce_request: Ignoring announce request for workgroup %s.\n", - workgroup_name)); - goto done; - } - - if(find_workgroup_on_subnet(subrec, workgroup_name) == NULL) - { - DEBUG(0,("process_announce_request: Unable to find workgroup %s on subnet !\n", - workgroup_name)); - goto done; - } - - found_lm_clients = True; -done: - END_PROFILE(lm_host_announce); -} |