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-rw-r--r--source3/nameserv.c124
1 files changed, 57 insertions, 67 deletions
diff --git a/source3/nameserv.c b/source3/nameserv.c
index 9025b66429..6ff2167271 100644
--- a/source3/nameserv.c
+++ b/source3/nameserv.c
@@ -70,9 +70,28 @@ static struct subnet_record *find_req_subnet(struct in_addr ip, BOOL bcast)
****************************************************************************/
static BOOL name_equal(struct nmb_name *n1,struct nmb_name *n2)
{
- if (n1->name_type != n2->name_type) return(False);
+ return n1->name_type == n2->name_type &&
+ strequal(n1->name ,n2->name ) &&
+ strequal(n1->scope,n2->scope);
+}
+
+
+/****************************************************************************
+ true if the netbios name is ^1^2__MSBROWSE__^2^1
+
+ note: this name is registered if as a master browser or backup browser
+ you are responsible for a workgroup (when you announce a domain by
+ broadcasting on your local subnet, you announce it as coming from this
+ name: see announce_host()).
+
+ WINS is configured to ignore this 'special browser name', presumably
+ because it's redundant: there's no such thing as an announceable
+ domain when dealing with a wide area network and a WINS server.
- return(strequal(n1->name,n2->name) && strequal(n1->scope,n2->scope));
+ **************************************************************************/
+BOOL special_browser_name(char *name, int type)
+{
+ return strequal(name,MSBROWSE) && type == 0x01;
}
@@ -344,7 +363,7 @@ void load_netbios_names(void)
name,type, inet_ntoa(ipaddr), ttd, nb_flags));
/* add all entries that have 60 seconds or more to live */
- if (ttd - 10 < time(NULL) || ttd == 0)
+ if (ttd - 60 < time(NULL) || ttd == 0)
{
time_t t = (ttd?ttd-time(NULL):0) / 3;
@@ -369,7 +388,7 @@ void remove_netbios_name(struct subnet_record *d,
int search = FIND_LOCAL;
/* if it's not a special browser name, search the WINS database */
- if (type != 0x01 && type != 0x1d && type != 0x1e)
+ if (!special_browser_name(name, type))
search |= FIND_WINS;
make_nmb_name(&nn, name, type, scope);
@@ -409,7 +428,7 @@ struct name_record *add_netbios_entry(struct subnet_record *d,
{
if (wins)
{
- if (type == 0x01 || type == 0x1d || type == 0x1e)
+ if (special_browser_name(name, type))
{
/* XXXX WINS server supposed to ignore special browser names. hm.
but is a primary domain controller supposed to ignore special
@@ -518,7 +537,10 @@ void add_my_name_entry(struct subnet_record *d,char *name,int type,int nb_flags)
re_reg = True;
/* always add our own entries */
- add_netbios_entry(d,name,type,nb_flags,0,SELF,ipzero,False,lp_wins_support());
+ /* a time-to-live allows us to refresh this name with the WINS server. */
+ add_netbios_entry(d,name,type,
+ nb_flags,GET_TTL(0),
+ SELF,ipzero,False,lp_wins_support());
/* XXXX BUG: if samba is offering WINS support, it should still add the
name entry to a local-subnet name database. see rfc1001.txt 15.1.1 p28
@@ -558,11 +580,14 @@ void add_my_names(void)
for (d = subnetlist; d; d = d->next)
{
+ /* these names need to be refreshed with the WINS server */
add_my_name_entry(d, myname,0x20,NB_ACTIVE);
add_my_name_entry(d, myname,0x03,NB_ACTIVE);
add_my_name_entry(d, myname,0x00,NB_ACTIVE);
add_my_name_entry(d, myname,0x1f,NB_ACTIVE);
+ /* these names are added permanently (ttl of zero) and will NOT be
+ refreshed with the WINS server */
add_netbios_entry(d,"*",0x0,NB_ACTIVE,0,SELF,ip,False,wins);
add_netbios_entry(d,"__SAMBA__",0x20,NB_ACTIVE,0,SELF,ip,False,wins);
add_netbios_entry(d,"__SAMBA__",0x00,NB_ACTIVE,0,SELF,ip,False,wins);
@@ -615,7 +640,8 @@ void refresh_my_names(time_t t)
for (n = d->namelist; n; n = n->next)
{
/* each SELF name has an individual time to be refreshed */
- if (n->source == SELF && n->refresh_time < time(NULL))
+ if (n->source == SELF && n->refresh_time < time(NULL) &&
+ n->death_time != 0)
{
add_my_name_entry(d,n->name.name,n->name.name_type,n->nb_flags);
}
@@ -832,44 +858,28 @@ void response_name_reg(struct subnet_record *d, struct packet_struct *p)
DEBUG(4,("response name registration received!\n"));
if (nmb->header.rcode == 0 && nmb->answers->rdata)
- {
+ {
/* IMPORTANT: see expire_netbios_response_entries() */
int nb_flags = nmb->answers->rdata[0];
- struct in_addr found_ip;
int ttl = nmb->answers->ttl;
- enum name_source source = REGISTER;
-
+ struct in_addr found_ip;
+
putip((char*)&found_ip,&nmb->answers->rdata[2]);
- if (ismyip(found_ip)) source = SELF;
-
- add_netbios_entry(d, name,type,nb_flags,ttl,source,found_ip,True,!bcast);
- }
+ name_register_work(d,name,type,nb_flags,ttl,found_ip,bcast);
+ }
else
- {
- struct work_record *work;
-
- DEBUG(1,("name registration for %s rejected!\n",
+ {
+ DEBUG(1,("name registration for %s rejected!\n",
namestr(&nmb->question.question_name)));
- /* XXXX oh dear. we have problems. must deal with our name having
- been rejected: e.g if it was our GROUP(1d) name, we must unbecome
- a master browser. */
+ /* XXXX oh dear. we have problems. must deal with our name having
+ been rejected: e.g if it was our GROUP(1d) name, we must unbecome
+ a master browser. */
- remove_netbios_name(d,name,type,SELF,ipzero);
-
- if (!(work = find_workgroupstruct(d, name, False))) return;
-
- if (AM_MASTER(work) && (type == 0x1d || type == 0x1b))
- {
- int remove_type = 0;
- if (type == 0x1d) remove_type = SV_TYPE_MASTER_BROWSER;
- if (type == 0x1b) remove_type = SV_TYPE_DOMAIN_MASTER;
-
- become_nonmaster(d, work, remove_type);
- }
- }
+ name_unregister_work(d,name,type);
+ }
}
@@ -1253,36 +1263,11 @@ void reply_name_query(struct packet_struct *p)
struct name_record *n;
int search = 0;
- if (name_type == 0x20 || name_type == 0x00 || name_type == 0x1b ||
- name_type == 0x1f || name_type == 0x03 || name_type == 0x01 ||
- name_type == 0x1c)
- {
- /* search for any of the non-'special browser' names, or for a PDC type
- (0x1b) name in the WINS database.
- XXXX should we include name type 0x1c: WINS server type?
- */
- search |= FIND_WINS;
- }
- else
+ if (!(d = find_req_subnet(p->ip, bcast)))
{
- /* special browser name types e.g
- ^1^2__MSBROWSE__^2^1, GROUP(1d) and GROUP(1e)
-
- name_type == 0x01 || name_type == 0x1d || name_type == 0x1e.
-
- XXXX luke reckons we should be able to search for any SELF name
- in the WINS database, if we are a primary domain controller.
- */
-
- if (!(d = find_req_subnet(p->ip, bcast)))
- {
- DEBUG(3,("name query: bcast %s not known\n",
+ DEBUG(3,("name query: bcast %s not known\n",
inet_ntoa(p->ip)));
- success = False;
- }
-
- /* XXXX delete if shouldn't search for SELF names in WINS database */
- search |= FIND_WINS;
+ success = False;
}
if (bcast)
@@ -1290,6 +1275,11 @@ void reply_name_query(struct packet_struct *p)
/* a name query has been made by a non-WINS configured host. search the
local interface database as well */
search |= FIND_LOCAL;
+
+ }
+ else if (!special_browser_name(question->name, name_type))
+ {
+ search |= FIND_WINS;
}
DEBUG(3,("Name query "));
@@ -1574,7 +1564,7 @@ static BOOL response_problem_check(struct response_record *n,
case NAME_QUERY_MST_SRV_CHK:
case NAME_QUERY_SRV_CHK:
case NAME_QUERY_MST_CHK:
- /* don't do case NAME_QUERY_FIND_MST: MSBROWSE isn't a unique name. */
+ /* don't do case NAME_QUERY_FIND_MST */
{
if (!strequal(qname,n->name.name))
{
@@ -1662,8 +1652,8 @@ static BOOL response_compatible(struct response_record *n,
default:
{
- DEBUG(0,("unknown state type received in response_netbios_packet\n"));
- break;
+ DEBUG(1,("unknown state type received in response_netbios_packet\n"));
+ return False;
}
}
return True;
@@ -1724,7 +1714,7 @@ static void response_process(struct subnet_record *d, struct packet_struct *p,
default:
{
- DEBUG(0,("unknown state type received in response_netbios_packet\n"));
+ DEBUG(1,("unknown state type received in response_netbios_packet\n"));
break;
}
}
generated by cgit (git 2.34.1) at 2024-07-16 11:30:37 +0000