diff options
Diffstat (limited to 'source4/nmbd/nmbd_namerelease.c')
-rw-r--r-- | source4/nmbd/nmbd_namerelease.c | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/source4/nmbd/nmbd_namerelease.c b/source4/nmbd/nmbd_namerelease.c deleted file mode 100644 index 0611ca9323..0000000000 --- a/source4/nmbd/nmbd_namerelease.c +++ /dev/null @@ -1,222 +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" - -/**************************************************************************** - Deal with a response packet when releasing one of our names. -****************************************************************************/ - -static void release_name_response(struct subnet_record *subrec, - struct response_record *rrec, struct packet_struct *p) -{ - /* - * If we are releasing broadcast, then getting a response is an - * error. If we are releasing unicast, then we expect to get a response. - */ - struct nmb_packet *nmb = &p->packet.nmb; - BOOL bcast = nmb->header.nm_flags.bcast; - BOOL success = True; - struct nmb_name *question_name = &rrec->packet->packet.nmb.question.question_name; - struct nmb_name *answer_name = &nmb->answers->rr_name; - struct in_addr released_ip; - - /* Sanity check. Ensure that the answer name in the incoming packet is the - same as the requested name in the outgoing packet. */ - if (!nmb_name_equal(question_name, answer_name)) { - DEBUG(0,("release_name_response: Answer name %s differs from question name %s.\n", - nmb_namestr(answer_name), nmb_namestr(question_name))); - return; - } - - if (bcast) { - /* Someone sent a response to a bcast release? ignore it. */ - return; - } - - /* Unicast - check to see if the response allows us to release the name. */ - if (nmb->header.rcode != 0) { - /* Error code - we were told not to release the name ! What now ! */ - success = False; - - DEBUG(0,("release_name_response: WINS server at IP %s rejected our \ -name release of name %s with error code %d.\n", - inet_ntoa(p->ip), - nmb_namestr(answer_name), nmb->header.rcode)); - } else if (nmb->header.opcode == NMB_WACK_OPCODE) { - /* WINS server is telling us to wait. Pretend we didn't get - the response but don't send out any more release requests. */ - - DEBUG(5,("release_name_response: WACK from WINS server %s in releasing \ -name %s on subnet %s.\n", - inet_ntoa(p->ip), nmb_namestr(answer_name), subrec->subnet_name)); - - rrec->repeat_count = 0; - /* How long we should wait for. */ - rrec->repeat_time = p->timestamp + nmb->answers->ttl; - rrec->num_msgs--; - return; - } - - DEBUG(5,("release_name_response: %s in releasing name %s on subnet %s.\n", - success ? "success" : "failure", nmb_namestr(answer_name), subrec->subnet_name)); - if (success) { - putip((char*)&released_ip ,&nmb->answers->rdata[2]); - - if(rrec->success_fn) - (*(release_name_success_function)rrec->success_fn)(subrec, rrec->userdata, answer_name, released_ip); - standard_success_release( subrec, rrec->userdata, answer_name, released_ip); - } else { - /* We have no standard_fail_release - maybe we should add one ? */ - if (rrec->fail_fn) { - (*(release_name_fail_function)rrec->fail_fn)(subrec, rrec, answer_name); - } - } - - remove_response_record(subrec, rrec); -} - -/**************************************************************************** - Deal with a timeout when releasing one of our names. -****************************************************************************/ - -static void release_name_timeout_response(struct subnet_record *subrec, - struct response_record *rrec) -{ - /* a release is *always* considered to be successful when it - times out. This doesn't cause problems as if a WINS server - doesn't respond and someone else wants the name then the - normal WACK/name query from the WINS server will cope */ - struct nmb_packet *sent_nmb = &rrec->packet->packet.nmb; - BOOL bcast = sent_nmb->header.nm_flags.bcast; - struct nmb_name *question_name = &sent_nmb->question.question_name; - struct in_addr released_ip; - - /* Get the ip address we were trying to release. */ - putip((char*)&released_ip ,&sent_nmb->additional->rdata[2]); - - if (!bcast) { - /* mark the WINS server temporarily dead */ - wins_srv_died(rrec->packet->ip, released_ip); - } - - DEBUG(5,("release_name_timeout_response: success in releasing name %s on subnet %s.\n", - nmb_namestr(question_name), subrec->subnet_name)); - - if (rrec->success_fn) { - (*(release_name_success_function)rrec->success_fn)(subrec, rrec->userdata, question_name, released_ip); - } - - standard_success_release( subrec, rrec->userdata, question_name, released_ip); - remove_response_record(subrec, rrec); -} - - -/* - when releasing a name with WINS we need to send the release to each of - the WINS groups -*/ -static void wins_release_name(struct name_record *namerec, - release_name_success_function success_fn, - release_name_fail_function fail_fn, - struct userdata_struct *userdata) -{ - int t, i; - char **wins_tags; - - /* get the list of wins tags - we try to release for each of them */ - wins_tags = wins_srv_tags(); - - for (t=0;wins_tags && wins_tags[t]; t++) { - for (i = 0; i < namerec->data.num_ips; i++) { - struct in_addr wins_ip = wins_srv_ip_tag(wins_tags[t], namerec->data.ip[i]); - - BOOL last_one = ((i==namerec->data.num_ips - 1) && !wins_tags[t+1]); - if (queue_release_name(unicast_subnet, - release_name_response, - release_name_timeout_response, - last_one?success_fn : NULL, - last_one? fail_fn : NULL, - last_one? userdata : NULL, - &namerec->name, - namerec->data.nb_flags, - namerec->data.ip[i], - wins_ip) == NULL) { - DEBUG(0,("release_name: Failed to send packet trying to release name %s IP %s\n", - nmb_namestr(&namerec->name), inet_ntoa(namerec->data.ip[i]) )); - } - } - } - - wins_srv_tags_free(wins_tags); -} - - -/**************************************************************************** - Try and release one of our names. -****************************************************************************/ - -void release_name(struct subnet_record *subrec, struct name_record *namerec, - release_name_success_function success_fn, - release_name_fail_function fail_fn, - struct userdata_struct *userdata) -{ - int i; - - /* Ensure it's a SELF name, and in the ACTIVE state. */ - if ((namerec->data.source != SELF_NAME) || !NAME_IS_ACTIVE(namerec)) { - DEBUG(0,("release_name: Cannot release name %s from subnet %s. Source was %d \n", - nmb_namestr(&namerec->name), subrec->subnet_name, namerec->data.source)); - return; - } - - /* Set the name into the deregistering state. */ - namerec->data.nb_flags |= NB_DEREG; - - /* wins releases are a bit different */ - if (subrec == unicast_subnet) { - wins_release_name(namerec, success_fn, fail_fn, userdata); - return; - } - - /* - * Go through and release the name for all known ip addresses. - * Only call the success/fail function on the last one (it should - * only be done once). - */ - for (i = 0; i < namerec->data.num_ips; i++) { - if (queue_release_name(subrec, - release_name_response, - release_name_timeout_response, - (i == (namerec->data.num_ips - 1)) ? success_fn : NULL, - (i == (namerec->data.num_ips - 1)) ? fail_fn : NULL, - (i == (namerec->data.num_ips - 1)) ? userdata : NULL, - &namerec->name, - namerec->data.nb_flags, - namerec->data.ip[i], - subrec->bcast_ip) == NULL) { - DEBUG(0,("release_name: Failed to send packet trying to release name %s IP %s\n", - nmb_namestr(&namerec->name), inet_ntoa(namerec->data.ip[i]) )); - } - } -} |