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-rw-r--r--source4/nbt_server/wins/winsserver.c90
1 files changed, 70 insertions, 20 deletions
diff --git a/source4/nbt_server/wins/winsserver.c b/source4/nbt_server/wins/winsserver.c
index 19b9c6c47f..12201b1620 100644
--- a/source4/nbt_server/wins/winsserver.c
+++ b/source4/nbt_server/wins/winsserver.c
@@ -236,11 +236,15 @@ static void nbtd_winsserver_query(struct nbt_name_socket *nbtsock,
uint16_t nb_flags = 0; /* TODO: ... */
status = winsdb_lookup(winssrv->wins_db, name, packet, &rec);
- if (!NT_STATUS_IS_OK(status) || rec->state != WREPL_STATE_ACTIVE) {
- nbtd_negative_name_query_reply(nbtsock, packet, src);
- return;
+ if (!NT_STATUS_IS_OK(status)) {
+ goto notfound;
}
+ /*
+ * for group's we always reply with
+ * 255.255.255.255 as address, even if
+ * the record is released or tombstoned
+ */
if (rec->type == WREPL_TYPE_GROUP) {
addresses = talloc_array(packet, const char *, 2);
if (addresses == NULL) {
@@ -249,16 +253,24 @@ static void nbtd_winsserver_query(struct nbt_name_socket *nbtsock,
}
addresses[0] = WINSDB_GROUP_ADDRESS;
addresses[1] = NULL;
- } else {
- addresses = winsdb_addr_string_list(packet, rec->addresses);
- if (addresses == NULL) {
- nbtd_negative_name_query_reply(nbtsock, packet, src);
- return;
- }
+ goto found;
+ }
+
+ if (rec->state != WREPL_STATE_ACTIVE) {
+ goto notfound;
}
+ addresses = winsdb_addr_string_list(packet, rec->addresses);
+ if (!addresses) {
+ goto notfound;
+ }
+found:
nbtd_name_query_reply(nbtsock, packet, src, name,
0, nb_flags, addresses);
+ return;
+
+notfound:
+ nbtd_negative_name_query_reply(nbtsock, packet, src);
}
/*
@@ -274,27 +286,65 @@ static void nbtd_winsserver_release(struct nbt_name_socket *nbtsock,
struct wins_server *winssrv = iface->nbtsrv->winssrv;
struct nbt_name *name = &packet->questions[0].name;
struct winsdb_record *rec;
+ uint32_t modify_flags = 0;
+ uint8_t ret;
status = winsdb_lookup(winssrv->wins_db, name, packet, &rec);
- if (!NT_STATUS_IS_OK(status) ||
- rec->state != WREPL_STATE_ACTIVE ||
- rec->type == WREPL_TYPE_GROUP) {
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+
+ if (rec->state != WREPL_STATE_ACTIVE) {
+ goto done;
+ }
+
+ /*
+ * TODO: do we need to check if
+ * src->addr matches packet->additional[0].rdata.netbios.addresses[0].ipaddr
+ * here?
+ */
+
+ /*
+ * we only allow releases from an owner - other releases are
+ * silently ignored
+ */
+ if (!winsdb_addr_list_check(rec->addresses, src->addr)) {
goto done;
}
- /* we only allow releases from an owner - other releases are
- silently ignored */
- if (winsdb_addr_list_check(rec->addresses, src->addr)) {
- const char *address = packet->additional[0].rdata.netbios.addresses[0].ipaddr;
+ DEBUG(4,("WINS: released name %s from %s\n", nbt_name_string(rec, rec->name), src->addr));
+
+ switch (rec->type) {
+ case WREPL_TYPE_UNIQUE:
+ rec->state = WREPL_STATE_RELEASED;
+ break;
- DEBUG(4,("WINS: released name %s at %s\n", nbt_name_string(rec, rec->name), address));
- winsdb_addr_list_remove(rec->addresses, address);
- if (rec->addresses[0] == NULL) {
+ case WREPL_TYPE_GROUP:
+ rec->state = WREPL_STATE_RELEASED;
+ break;
+
+ case WREPL_TYPE_SGROUP:
+ winsdb_addr_list_remove(rec->addresses, src->addr);
+ /* TODO: do we need to take the ownership here? */
+ if (winsdb_addr_list_length(rec->addresses) == 0) {
rec->state = WREPL_STATE_RELEASED;
}
- winsdb_modify(winssrv->wins_db, rec, 0);
+ break;
+
+ case WREPL_TYPE_MHOMED:
+ winsdb_addr_list_remove(rec->addresses, src->addr);
+ /* TODO: do we need to take the ownership here? */
+ if (winsdb_addr_list_length(rec->addresses) == 0) {
+ rec->state = WREPL_STATE_RELEASED;
+ }
+ break;
}
+ ret = winsdb_modify(winssrv->wins_db, rec, modify_flags);
+ if (ret != NBT_RCODE_OK) {
+ DEBUG(1,("WINS: FAILED: released name %s at %s: error:%u\n",
+ nbt_name_string(rec, rec->name), src->addr, ret));
+ }
done:
/* we match w2k3 by always giving a positive reply to name releases. */
nbtd_name_release_reply(nbtsock, packet, src, NBT_RCODE_OK);