diff options
Diffstat (limited to 'source4/nmbd/nmbd_sendannounce.c')
| -rw-r--r-- | source4/nmbd/nmbd_sendannounce.c | 607 |
1 files changed, 0 insertions, 607 deletions
diff --git a/source4/nmbd/nmbd_sendannounce.c b/source4/nmbd/nmbd_sendannounce.c deleted file mode 100644 index 191a3b7c7b..0000000000 --- a/source4/nmbd/nmbd_sendannounce.c +++ /dev/null @@ -1,607 +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 - - SMB Version handling - Copyright (C) John H Terpstra 1995-1998 - - 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 int updatecount; -extern BOOL found_lm_clients; - -/**************************************************************************** - Send a browser reset packet. -**************************************************************************/ - -void send_browser_reset(int reset_type, const char *to_name, int to_type, struct in_addr to_ip) -{ - pstring outbuf; - char *p; - - DEBUG(3,("send_browser_reset: sending reset request type %d to %s<%02x> IP %s.\n", - reset_type, to_name, to_type, inet_ntoa(to_ip) )); - - memset(outbuf,'\0',sizeof(outbuf)); - p = outbuf; - SCVAL(p,0,ANN_ResetBrowserState); - p++; - SCVAL(p,0,reset_type); - p++; - - send_mailslot(True, BROWSE_MAILSLOT, outbuf,PTR_DIFF(p,outbuf), - lp_netbios_name(), 0x0, to_name, to_type, to_ip, - FIRST_SUBNET->myip, DGRAM_PORT); -} - -/**************************************************************************** - Broadcast a packet to the local net requesting that all servers in this - workgroup announce themselves to us. - **************************************************************************/ - -void broadcast_announce_request(struct subnet_record *subrec, struct work_record *work) -{ - pstring outbuf; - char *p; - - work->needannounce = True; - - DEBUG(3,("broadcast_announce_request: sending announce request for workgroup %s \ -to subnet %s\n", work->work_group, subrec->subnet_name)); - - memset(outbuf,'\0',sizeof(outbuf)); - p = outbuf; - SCVAL(p,0,ANN_AnnouncementRequest); - p++; - - SCVAL(p,0,work->token); /* (local) Unique workgroup token id. */ - p++; - p += push_string(NULL, p+1, lp_netbios_name(), 15, STR_ASCII|STR_UPPER|STR_TERMINATE); - - send_mailslot(False, BROWSE_MAILSLOT, outbuf,PTR_DIFF(p,outbuf), - lp_netbios_name(), 0x0, work->work_group,0x1e, subrec->bcast_ip, - subrec->myip, DGRAM_PORT); -} - -/**************************************************************************** - Broadcast an announcement. - **************************************************************************/ - -static void send_announcement(struct subnet_record *subrec, int announce_type, - const char *from_name, const char *to_name, int to_type, struct in_addr to_ip, - time_t announce_interval, - const char *server_name, int server_type, const char *server_comment) -{ - pstring outbuf; - char *p; - - memset(outbuf,'\0',sizeof(outbuf)); - p = outbuf+1; - - SCVAL(outbuf,0,announce_type); - - /* Announcement parameters. */ - SCVAL(p,0,updatecount); - SIVAL(p,1,announce_interval*1000); /* Milliseconds - despite the spec. */ - - push_string(NULL, p+5, server_name, 15, STR_ASCII|STR_UPPER|STR_TERMINATE); - - SCVAL(p,21,lp_major_announce_version()); /* Major version. */ - SCVAL(p,22,lp_minor_announce_version()); /* Minor version. */ - - SIVAL(p,23,server_type & ~SV_TYPE_LOCAL_LIST_ONLY); - /* Browse version: got from NT/AS 4.00 - Value defined in smb.h (JHT). */ - SSVAL(p,27,BROWSER_ELECTION_VERSION); - SSVAL(p,29,BROWSER_CONSTANT); /* Browse signature. */ - - p += 31 + push_string(NULL, p+31, server_comment, -1, STR_ASCII|STR_TERMINATE); - - send_mailslot(False,BROWSE_MAILSLOT, outbuf, PTR_DIFF(p,outbuf), - from_name, 0x0, to_name, to_type, to_ip, subrec->myip, - DGRAM_PORT); -} - -/**************************************************************************** - Broadcast a LanMan announcement. -**************************************************************************/ - -static void send_lm_announcement(struct subnet_record *subrec, int announce_type, - char *from_name, char *to_name, int to_type, struct in_addr to_ip, - time_t announce_interval, - char *server_name, int server_type, char *server_comment) -{ - pstring outbuf; - char *p=outbuf; - - memset(outbuf,'\0',sizeof(outbuf)); - - SSVAL(p,0,announce_type); - SIVAL(p,2,server_type & ~SV_TYPE_LOCAL_LIST_ONLY); - SCVAL(p,6,lp_major_announce_version()); /* Major version. */ - SCVAL(p,7,lp_minor_announce_version()); /* Minor version. */ - SSVAL(p,8,announce_interval); /* In seconds - according to spec. */ - - p += 10; - /*StrnCpy(p,server_name,15); - strupper(p); - p = skip_string(p,1); - pstrcpy(p,server_comment); - p = skip_string(p,1);*/ - p += push_string(NULL, p, server_name, 15, STR_ASCII|STR_UPPER|STR_TERMINATE); - p += push_string(NULL, p, server_comment, sizeof(pstring)-15, STR_ASCII|STR_UPPER|STR_TERMINATE); - - send_mailslot(False,LANMAN_MAILSLOT, outbuf, PTR_DIFF(p,outbuf), - from_name, 0x0, to_name, to_type, to_ip, subrec->myip, - DGRAM_PORT); -} - -/**************************************************************************** - We are a local master browser. Announce this to WORKGROUP<1e>. -****************************************************************************/ - -static void send_local_master_announcement(struct subnet_record *subrec, struct work_record *work, - struct server_record *servrec) -{ - /* Ensure we don't have the prohibited bit set. */ - uint32 type = servrec->serv.type & ~SV_TYPE_LOCAL_LIST_ONLY; - - DEBUG(3,("send_local_master_announcement: type %x for name %s on subnet %s for workgroup %s\n", - type, lp_netbios_name(), subrec->subnet_name, work->work_group)); - - send_announcement(subrec, ANN_LocalMasterAnnouncement, - lp_netbios_name(), /* From nbt name. */ - work->work_group, 0x1e, /* To nbt name. */ - subrec->bcast_ip, /* To ip. */ - work->announce_interval, /* Time until next announce. */ - lp_netbios_name(), /* Name to announce. */ - type, /* Type field. */ - servrec->serv.comment); -} - -/**************************************************************************** - Announce the workgroup WORKGROUP to MSBROWSE<01>. -****************************************************************************/ - -static void send_workgroup_announcement(struct subnet_record *subrec, struct work_record *work) -{ - DEBUG(3,("send_workgroup_announcement: on subnet %s for workgroup %s\n", - subrec->subnet_name, work->work_group)); - - send_announcement(subrec, ANN_DomainAnnouncement, - lp_netbios_name(), /* From nbt name. */ - MSBROWSE, 0x1, /* To nbt name. */ - subrec->bcast_ip, /* To ip. */ - work->announce_interval, /* Time until next announce. */ - work->work_group, /* Name to announce. */ - SV_TYPE_DOMAIN_ENUM|SV_TYPE_NT, /* workgroup announce flags. */ - lp_netbios_name()); /* From name as comment. */ -} - -/**************************************************************************** - Announce the given host to WORKGROUP<1d>. -****************************************************************************/ - -static void send_host_announcement(struct subnet_record *subrec, struct work_record *work, - struct server_record *servrec) -{ - /* Ensure we don't have the prohibited bits set. */ - uint32 type = servrec->serv.type & ~SV_TYPE_LOCAL_LIST_ONLY; - - DEBUG(3,("send_host_announcement: type %x for host %s on subnet %s for workgroup %s\n", - type, servrec->serv.name, subrec->subnet_name, work->work_group)); - - send_announcement(subrec, ANN_HostAnnouncement, - servrec->serv.name, /* From nbt name. */ - work->work_group, 0x1d, /* To nbt name. */ - subrec->bcast_ip, /* To ip. */ - work->announce_interval, /* Time until next announce. */ - servrec->serv.name, /* Name to announce. */ - type, /* Type field. */ - servrec->serv.comment); -} - -/**************************************************************************** - Announce the given LanMan host -****************************************************************************/ - -static void send_lm_host_announcement(struct subnet_record *subrec, struct work_record *work, - struct server_record *servrec, int lm_interval) -{ - /* Ensure we don't have the prohibited bits set. */ - uint32 type = servrec->serv.type & ~SV_TYPE_LOCAL_LIST_ONLY; - - DEBUG(3,("send_lm_host_announcement: type %x for host %s on subnet %s for workgroup %s, ttl: %d\n", - type, servrec->serv.name, subrec->subnet_name, work->work_group, lm_interval)); - - send_lm_announcement(subrec, ANN_HostAnnouncement, - servrec->serv.name, /* From nbt name. */ - work->work_group, 0x00, /* To nbt name. */ - subrec->bcast_ip, /* To ip. */ - lm_interval, /* Time until next announce. */ - servrec->serv.name, /* Name to announce. */ - type, /* Type field. */ - servrec->serv.comment); -} - -/**************************************************************************** - Announce a server record. - ****************************************************************************/ - -static void announce_server(struct subnet_record *subrec, struct work_record *work, - struct server_record *servrec) -{ - /* Only do domain announcements if we are a master and it's - our primary name we're being asked to announce. */ - - if (AM_LOCAL_MASTER_BROWSER(work) && strequal(lp_netbios_name(),servrec->serv.name)) - { - send_local_master_announcement(subrec, work, servrec); - send_workgroup_announcement(subrec, work); - } - else - { - send_host_announcement(subrec, work, servrec); - } -} - -/**************************************************************************** - Go through all my registered names on all broadcast subnets and announce - them if the timeout requires it. - **************************************************************************/ - -void announce_my_server_names(time_t t) -{ - struct subnet_record *subrec; - - for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) - { - struct work_record *work = find_workgroup_on_subnet(subrec, lp_workgroup()); - - if(work) - { - struct server_record *servrec; - - if (work->needannounce) - { - /* Drop back to a max 3 minute announce. This is to prevent a - single lost packet from breaking things for too long. */ - - work->announce_interval = MIN(work->announce_interval, - CHECK_TIME_MIN_HOST_ANNCE*60); - work->lastannounce_time = t - (work->announce_interval+1); - work->needannounce = False; - } - - /* Announce every minute at first then progress to every 12 mins */ - if ((t - work->lastannounce_time) < work->announce_interval) - continue; - - if (work->announce_interval < (CHECK_TIME_MAX_HOST_ANNCE * 60)) - work->announce_interval += 60; - - work->lastannounce_time = t; - - for (servrec = work->serverlist; servrec; servrec = servrec->next) - { - if (is_myname(servrec->serv.name)) - announce_server(subrec, work, servrec); - } - } /* if work */ - } /* for subrec */ -} - -/**************************************************************************** - Go through all my registered names on all broadcast subnets and announce - them as a LanMan server if the timeout requires it. -**************************************************************************/ - -void announce_my_lm_server_names(time_t t) -{ - struct subnet_record *subrec; - static time_t last_lm_announce_time=0; - int announce_interval = lp_lm_interval(); - int lm_announce = lp_lm_announce(); - - if ((announce_interval <= 0) || (lm_announce <= 0)) - { - /* user absolutely does not want LM announcements to be sent. */ - return; - } - - if ((lm_announce >= 2) && (!found_lm_clients)) - { - /* has been set to 2 (Auto) but no LM clients detected (yet). */ - return; - } - - /* Otherwise: must have been set to 1 (Yes), or LM clients *have* - been detected. */ - - for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) - { - struct work_record *work = find_workgroup_on_subnet(subrec, lp_workgroup()); - - if(work) - { - struct server_record *servrec; - - if (last_lm_announce_time && ((t - last_lm_announce_time) < announce_interval )) - continue; - - last_lm_announce_time = t; - - for (servrec = work->serverlist; servrec; servrec = servrec->next) - { - if (is_myname(servrec->serv.name)) - /* skipping equivalent of announce_server() */ - send_lm_host_announcement(subrec, work, servrec, announce_interval); - } - } /* if work */ - } /* for subrec */ -} - -/* Announce timer. Moved into global static so it can be reset - when a machine becomes a local master browser. */ -static time_t announce_timer_last=0; - -/**************************************************************************** - Reset the announce_timer so that a local master browser announce will be done - immediately. - ****************************************************************************/ - -void reset_announce_timer(void) -{ - announce_timer_last = time(NULL) - (CHECK_TIME_MST_ANNOUNCE * 60); -} - -/**************************************************************************** - Announce myself as a local master browser to a domain master browser. - **************************************************************************/ - -void announce_myself_to_domain_master_browser(time_t t) -{ - struct subnet_record *subrec; - struct work_record *work; - - if(!we_are_a_wins_client()) - { - DEBUG(10,("announce_myself_to_domain_master_browser: no unicast subnet, ignoring.\n")); - return; - } - - if (!announce_timer_last) - announce_timer_last = t; - - if ((t-announce_timer_last) < (CHECK_TIME_MST_ANNOUNCE * 60)) - { - DEBUG(10,("announce_myself_to_domain_master_browser: t (%d) - last(%d) < %d\n", - (int)t, (int)announce_timer_last, - CHECK_TIME_MST_ANNOUNCE * 60 )); - return; - } - - announce_timer_last = t; - - /* Look over all our broadcast subnets to see if any of them - has the state set as local master browser. */ - - for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) - { - for (work = subrec->workgrouplist; work; work = work->next) - { - if (AM_LOCAL_MASTER_BROWSER(work)) - { - DEBUG(4,( "announce_myself_to_domain_master_browser: I am a local master browser for \ -workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name)); - - /* Look in nmbd_browsersync.c for the rest of this code. */ - announce_and_sync_with_domain_master_browser(subrec, work); - } - } - } -} - -/**************************************************************************** -Announce all samba's server entries as 'gone'. -This must *only* be called on shutdown. -****************************************************************************/ - -void announce_my_servers_removed(void) -{ - int announce_interval = lp_lm_interval(); - int lm_announce = lp_lm_announce(); - 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; - - work->announce_interval = 0; - for (servrec = work->serverlist; servrec; servrec = servrec->next) - { - if (!is_myname(servrec->serv.name)) - continue; - servrec->serv.type = 0; - if(AM_LOCAL_MASTER_BROWSER(work)) - send_local_master_announcement(subrec, work, servrec); - send_host_announcement(subrec, work, servrec); - - - if ((announce_interval <= 0) || (lm_announce <= 0)) - { - /* user absolutely does not want LM announcements to be sent. */ - continue; - } - - if ((lm_announce >= 2) && (!found_lm_clients)) - { - /* has been set to 2 (Auto) but no LM clients detected (yet). */ - continue; - } - - /* - * lm announce was set or we have seen lm announcements, so do - * a lm announcement of host removed. - */ - - send_lm_host_announcement(subrec, work, servrec, 0); - } - } - } -} - -/**************************************************************************** - Do all the "remote" announcements. These are used to put ourselves - on a remote browse list. They are done blind, no checking is done to - see if there is actually a local master browser at the other end. - **************************************************************************/ - -void announce_remote(time_t t) -{ - char *s; - const char *ptr; - static time_t last_time = 0; - pstring s2; - struct in_addr addr; - char *comment; - int stype = lp_default_server_announce(); - - if (last_time && (t < (last_time + REMOTE_ANNOUNCE_INTERVAL))) - return; - - last_time = t; - - s = lp_remote_announce(); - if (!*s) - return; - - comment = string_truncate(lp_serverstring(), MAX_SERVER_STRING_LENGTH); - - for (ptr=s; next_token(&ptr,s2,NULL,sizeof(s2)); ) - { - /* The entries are of the form a.b.c.d/WORKGROUP with - WORKGROUP being optional */ - const char *wgroup; - char *pwgroup; - int i; - - pwgroup = strchr_m(s2,'/'); - if (pwgroup) - *pwgroup++ = 0; - if (!pwgroup || !*pwgroup) - wgroup = lp_workgroup(); - else - wgroup = pwgroup; - - addr = *interpret_addr2(s2); - - /* Announce all our names including aliases */ - /* Give the ip address as the address of our first - broadcast subnet. */ - - for(i=0; my_netbios_names(i); i++) - { - const char *name = my_netbios_names(i); - - DEBUG(5,("announce_remote: Doing remote announce for server %s to IP %s.\n", - name, inet_ntoa(addr) )); - - send_announcement(FIRST_SUBNET, ANN_HostAnnouncement, - name, /* From nbt name. */ - wgroup, 0x1d, /* To nbt name. */ - addr, /* To ip. */ - REMOTE_ANNOUNCE_INTERVAL, /* Time until next announce. */ - name, /* Name to announce. */ - stype, /* Type field. */ - comment); - } - } -} - -/**************************************************************************** - Implement the 'remote browse sync' feature Andrew added. - These are used to put our browse lists into remote browse lists. - **************************************************************************/ - -void browse_sync_remote(time_t t) -{ - char *s; - const char *ptr; - static time_t last_time = 0; - pstring s2; - struct in_addr addr; - struct work_record *work; - pstring outbuf; - char *p; - - if (last_time && (t < (last_time + REMOTE_ANNOUNCE_INTERVAL))) - return; - - last_time = t; - - s = lp_remote_browse_sync(); - if (!*s) - return; - - /* - * We only do this if we are the local master browser - * for our workgroup on the firsst subnet. - */ - - if((work = find_workgroup_on_subnet(FIRST_SUBNET, lp_workgroup())) == NULL) - { - DEBUG(0,("browse_sync_remote: Cannot find workgroup %s on subnet %s\n", - lp_workgroup(), FIRST_SUBNET->subnet_name )); - return; - } - - if(!AM_LOCAL_MASTER_BROWSER(work)) - { - DEBUG(5,("browse_sync_remote: We can only do this if we are a local master browser \ -for workgroup %s on subnet %s.\n", lp_workgroup(), FIRST_SUBNET->subnet_name )); - return; - } - - memset(outbuf,'\0',sizeof(outbuf)); - p = outbuf; - SCVAL(p,0,ANN_MasterAnnouncement); - p++; - - StrnCpy(p,lp_netbios_name(),15); - strupper(p); - p = skip_string(p,1); - - for (ptr=s; next_token(&ptr,s2,NULL,sizeof(s2)); ) - { - /* The entries are of the form a.b.c.d */ - addr = *interpret_addr2(s2); - - DEBUG(5,("announce_remote: Doing remote browse sync announce for server %s to IP %s.\n", - lp_netbios_name(), inet_ntoa(addr) )); - - send_mailslot(True, BROWSE_MAILSLOT, outbuf,PTR_DIFF(p,outbuf), - lp_netbios_name(), 0x0, "*", 0x0, addr, FIRST_SUBNET->myip, DGRAM_PORT); - } -} |