#include "includes.h"
#include "dlinklist.h"
-#include "lib/events/events.h"
-#include "lib/socket/socket.h"
#include "smbd/service_task.h"
-#include "smbd/service_stream.h"
+#include "smbd/service.h"
#include "lib/messaging/irpc.h"
-#include "librpc/gen_ndr/ndr_winsrepl.h"
+#include "librpc/gen_ndr/winsrepl.h"
#include "wrepl_server/wrepl_server.h"
#include "nbt_server/wins/winsdb.h"
#include "ldb/include/ldb.h"
#include "ldb/include/ldb_errors.h"
+#include "auth/auth.h"
+#include "db_wrap.h"
+
+static struct ldb_context *wins_config_db_connect(TALLOC_CTX *mem_ctx)
+{
+ return ldb_wrap_connect(mem_ctx, private_path(mem_ctx, lp_wins_config_url()),
+ system_session(mem_ctx), NULL, 0, NULL);
+}
+
+static uint64_t wins_config_db_get_seqnumber(struct ldb_context *ldb)
+{
+ int ret;
+ struct ldb_dn *dn;
+ struct ldb_result *res = NULL;
+ TALLOC_CTX *tmp_ctx = talloc_new(ldb);
+ uint64_t seqnumber = 0;
+
+ dn = ldb_dn_explode(tmp_ctx, "@BASEINFO");
+ if (!dn) goto failed;
+
+ /* find the record in the WINS database */
+ ret = ldb_search(ldb, dn, LDB_SCOPE_BASE,
+ NULL, NULL, &res);
+ if (ret != LDB_SUCCESS) goto failed;
+ talloc_steal(tmp_ctx, res);
+ if (res->count > 1) goto failed;
+
+ if (res->count == 1) {
+ seqnumber = ldb_msg_find_uint64(res->msgs[0], "sequenceNumber", 0);
+ }
+
+failed:
+ talloc_free(tmp_ctx);
+ return seqnumber;
+}
/*
open winsdb
*/
static NTSTATUS wreplsrv_open_winsdb(struct wreplsrv_service *service)
{
- service->wins_db = winsdb_connect(service);
+ service->wins_db = winsdb_connect(service, WINSDB_HANDLE_CALLER_WREPL);
if (!service->wins_db) {
return NT_STATUS_INTERNAL_DB_ERROR;
}
+ service->config.ldb = wins_config_db_connect(service);
+ if (!service->config.ldb) {
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+
+ /* the default renew interval is 6 days */
+ service->config.renew_interval = lp_parm_int(-1,"wreplsrv","renew_interval", 6*24*60*60);
+
+ /* the default tombstone (extinction) interval is 6 days */
+ service->config.tombstone_interval= lp_parm_int(-1,"wreplsrv","tombstone_interval", 6*24*60*60);
+
+ /* the default tombstone (extinction) timeout is 1 day */
+ service->config.tombstone_timeout = lp_parm_int(-1,"wreplsrv","tombstone_timeout", 1*24*60*60);
+
+ /* the default tombstone extra timeout is 3 days */
+ service->config.tombstone_extra_timeout = lp_parm_int(-1,"wreplsrv","tombstone_extra_timeout", 3*24*60*60);
+
+ /* the default verify interval is 24 days */
+ service->config.verify_interval = lp_parm_int(-1,"wreplsrv","verify_interval", 24*24*60*60);
+
+ /* the default scavenging interval is 'renew_interval/2' */
+ service->config.scavenging_interval=lp_parm_int(-1,"wreplsrv","scavenging_interval",
+ service->config.renew_interval/2);
+
+ /* the maximun interval to the next periodic processing event */
+ service->config.periodic_interval = lp_parm_int(-1,"wreplsrv","periodic_interval", 15);
+
return NT_STATUS_OK;
}
/*
load our replication partners
*/
-static NTSTATUS wreplsrv_load_partners(struct wreplsrv_service *service)
+NTSTATUS wreplsrv_load_partners(struct wreplsrv_service *service)
{
+ struct wreplsrv_partner *partner;
struct ldb_result *res = NULL;
int ret;
TALLOC_CTX *tmp_ctx = talloc_new(service);
int i;
+ uint64_t new_seqnumber;
+
+ new_seqnumber = wins_config_db_get_seqnumber(service->config.ldb);
+
+ /* if it's not the first run and nothing changed we're done */
+ if (service->config.seqnumber != 0 && service->config.seqnumber == new_seqnumber) {
+ return NT_STATUS_OK;
+ }
+
+ service->config.seqnumber = new_seqnumber;
/* find the record in the WINS database */
- ret = ldb_search(service->wins_db, ldb_dn_explode(tmp_ctx, "CN=PARTNERS"), LDB_SCOPE_ONELEVEL,
+ ret = ldb_search(service->config.ldb, ldb_dn_explode(tmp_ctx, "CN=PARTNERS"), LDB_SCOPE_SUBTREE,
"(objectClass=wreplPartner)", NULL, &res);
if (ret != LDB_SUCCESS) goto failed;
talloc_steal(tmp_ctx, res);
- if (res->count == 0) goto done;
+
+ /* first disable all existing partners */
+ for (partner=service->partners; partner; partner = partner->next) {
+ partner->type = WINSREPL_PARTNER_NONE;
+ }
for (i=0; i < res->count; i++) {
- struct wreplsrv_partner *partner;
+ const char *address;
+
+ address = ldb_msg_find_string(res->msgs[i], "address", NULL);
+ if (!address) {
+ goto failed;
+ }
+
+ partner = wreplsrv_find_partner(service, address);
+ if (partner) {
+ if (partner->name != partner->address) {
+ talloc_free(discard_const(partner->name));
+ }
+ partner->name = NULL;
+ talloc_free(discard_const(partner->our_address));
+ partner->our_address = NULL;
+
+ /* force rescheduling of pulling */
+ partner->pull.next_run = timeval_zero();
+ } else {
+ partner = talloc_zero(service, struct wreplsrv_partner);
+ if (partner == NULL) goto failed;
- partner = talloc_zero(service, struct wreplsrv_partner);
- if (partner == NULL) goto failed;
+ partner->service = service;
+ partner->address = address;
+ talloc_steal(partner, partner->address);
+
+ DLIST_ADD_END(service->partners, partner, struct wreplsrv_partner *);
+ }
- partner->service = service;
- partner->address = ldb_msg_find_string(res->msgs[i], "address", NULL);
- if (!partner->address) goto failed;
partner->name = ldb_msg_find_string(res->msgs[i], "name", partner->address);
+ talloc_steal(partner, partner->name);
+ partner->our_address = ldb_msg_find_string(res->msgs[i], "ourAddress", NULL);
+ talloc_steal(partner, partner->our_address);
+
partner->type = ldb_msg_find_uint(res->msgs[i], "type", WINSREPL_PARTNER_BOTH);
partner->pull.interval = ldb_msg_find_uint(res->msgs[i], "pullInterval",
WINSREPL_DEFAULT_PULL_INTERVAL);
partner->pull.retry_interval = ldb_msg_find_uint(res->msgs[i], "pullRetryInterval",
WINSREPL_DEFAULT_PULL_RETRY_INTERVAL);
- partner->our_address = ldb_msg_find_string(res->msgs[i], "ourAddress", NULL);
partner->push.change_count = ldb_msg_find_uint(res->msgs[i], "pushChangeCount",
WINSREPL_DEFAULT_PUSH_CHANGE_COUNT);
+ partner->push.use_inform = ldb_msg_find_uint(res->msgs[i], "pushUseInform", False);
- talloc_steal(partner, partner->address);
- talloc_steal(partner, partner->name);
- talloc_steal(partner, partner->our_address);
-
- DLIST_ADD(service->partners, partner);
+ DEBUG(3,("wreplsrv_load_partners: found partner: %s type: 0x%X\n",
+ partner->address, partner->type));
}
-done:
+
+ DEBUG(2,("wreplsrv_load_partners: %u partners found: wins_config_db seqnumber %llu\n",
+ res->count, service->config.seqnumber));
+
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
return NT_STATUS_FOOBAR;
}
-BOOL wreplsrv_is_our_address(struct wreplsrv_service *service, const char *address)
-{
- const char *our_address;
-
- if (lp_interfaces() && lp_bind_interfaces_only()) {
- int num_interfaces = iface_count();
- int i;
- for(i = 0; i < num_interfaces; i++) {
- our_address = iface_n_ip(i);
- if (strcasecmp(our_address, address) == 0) {
- return True;
- }
- }
- } else {
- our_address = lp_socket_address();
- if (strcasecmp(our_address, address) == 0) {
- return True;
- }
- }
-
- return False;
-}
-
-uint64_t wreplsrv_local_max_version(struct wreplsrv_service *service)
-{
- int ret;
- struct ldb_context *ldb = service->wins_db;
- struct ldb_dn *dn;
- struct ldb_result *res = NULL;
- TALLOC_CTX *tmp_ctx = talloc_new(service);
- uint64_t maxVersion = 0;
-
- dn = ldb_dn_explode(tmp_ctx, "CN=VERSION");
- if (!dn) goto failed;
-
- /* find the record in the WINS database */
- ret = ldb_search(ldb, dn, LDB_SCOPE_BASE,
- NULL, NULL, &res);
- if (ret != LDB_SUCCESS) goto failed;
- talloc_steal(tmp_ctx, res);
- if (res->count > 1) goto failed;
-
- if (res->count == 1) {
- maxVersion = ldb_msg_find_uint64(res->msgs[0], "maxVersion", 0);
- }
-
-failed:
- talloc_free(tmp_ctx);
- return maxVersion;
-}
-
NTSTATUS wreplsrv_fill_wrepl_table(struct wreplsrv_service *service,
TALLOC_CTX *mem_ctx,
struct wrepl_table *table_out,
- const char *our_ip,
const char *initiator,
BOOL full_table)
{
struct wreplsrv_owner *cur;
- uint64_t local_max_version;
uint32_t i = 0;
table_out->partner_count = 0;
table_out->partners = NULL;
table_out->initiator = initiator;
- local_max_version = wreplsrv_local_max_version(service);
- if (local_max_version > 0) {
- table_out->partner_count++;
- }
+ for (cur = service->table; cur; cur = cur->next) {
+ if (full_table) {
+ table_out->partner_count++;
+ continue;
+ }
+
+ if (strcmp(initiator, cur->owner.address) != 0) continue;
- for (cur = service->table; full_table && cur; cur = cur->next) {
table_out->partner_count++;
+ break;
}
table_out->partners = talloc_array(mem_ctx, struct wrepl_wins_owner, table_out->partner_count);
NT_STATUS_HAVE_NO_MEMORY(table_out->partners);
- if (local_max_version > 0) {
- table_out->partners[i].address = our_ip;
- table_out->partners[i].min_version = 0;
- table_out->partners[i].max_version = local_max_version;
- table_out->partners[i].type = 1;
- i++;
- }
+ for (cur = service->table; cur && i < table_out->partner_count; cur = cur->next) {
+ /*
+ * if it's our local entry
+ * update the max version
+ */
+ if (cur == service->owner) {
+ cur->owner.max_version = winsdb_get_maxVersion(service->wins_db);
+ }
+
+ if (full_table) {
+ table_out->partners[i] = cur->owner;
+ i++;
+ continue;
+ }
+
+ if (strcmp(initiator, cur->owner.address) != 0) continue;
- for (cur = service->table; full_table && cur; cur = cur->next) {
table_out->partners[i] = cur->owner;
i++;
+ break;
}
return NT_STATUS_OK;
}
-struct wreplsrv_owner *wreplsrv_find_owner(struct wreplsrv_owner *table, const char *wins_owner)
+struct wreplsrv_owner *wreplsrv_find_owner(struct wreplsrv_service *service,
+ struct wreplsrv_owner *table,
+ const char *wins_owner)
{
struct wreplsrv_owner *cur;
for (cur = table; cur; cur = cur->next) {
if (strcmp(cur->owner.address, wins_owner) == 0) {
+ /*
+ * if it's our local entry
+ * update the max version
+ */
+ if (cur == service->owner) {
+ cur->owner.max_version = winsdb_get_maxVersion(service->wins_db);
+ }
return cur;
}
}
struct wreplsrv_owner *table = *_table;
struct wreplsrv_owner *cur;
- if (strcmp(WINSDB_OWNER_LOCAL, wins_owner) == 0) {
- return NT_STATUS_OK;
+ if (!wins_owner || strcmp(wins_owner, "0.0.0.0") == 0) {
+ wins_owner = service->wins_db->local_owner;
}
- cur = wreplsrv_find_owner(table, wins_owner);
+ cur = wreplsrv_find_owner(service, table, wins_owner);
/* if it doesn't exists yet, create one */
if (!cur) {
cur->partner = wreplsrv_find_partner(service, wins_owner);
- DLIST_ADD(table, cur);
+ DLIST_ADD_END(table, cur, struct wreplsrv_owner *);
*_table = table;
}
/* the min_version is always 0 here, and won't be updated */
- /* if the given version is higher the then current nax_version, update */
+ /* if the given version is higher than the current max_version, update */
if (cur->owner.max_version < version) {
cur->owner.max_version = version;
+ /* if it's for our local db, we need to update the wins.ldb too */
+ if (cur == service->owner) {
+ uint64_t ret;
+ ret = winsdb_set_maxVersion(service->wins_db, cur->owner.max_version);
+ if (ret != cur->owner.max_version) {
+ DEBUG(0,("winsdb_set_maxVersion(%llu) failed: %llu\n",
+ cur->owner.max_version, ret));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ }
}
return NT_STATUS_OK;
int ret;
NTSTATUS status;
TALLOC_CTX *tmp_ctx = talloc_new(service);
+ struct ldb_context *ldb = service->wins_db->ldb;
int i;
+ struct wreplsrv_owner *local_owner;
const char *wins_owner;
uint64_t version;
const char * const attrs[] = {
NULL
};
+ /*
+ * make sure we have our local entry in the list,
+ * but we set service->owner when we're done
+ * to avoid to many calls to wreplsrv_local_max_version()
+ */
+ status = wreplsrv_add_table(service,
+ service, &service->table,
+ service->wins_db->local_owner, 0);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+ local_owner = wreplsrv_find_owner(service, service->table, service->wins_db->local_owner);
+ if (!local_owner) {
+ status = NT_STATUS_INTERNAL_ERROR;
+ goto failed;
+ }
+
/* find the record in the WINS database */
- ret = ldb_search(service->wins_db, NULL, LDB_SCOPE_SUBTREE,
+ ret = ldb_search(ldb, NULL, LDB_SCOPE_SUBTREE,
"(objectClass=winsRecord)", attrs, &res);
status = NT_STATUS_INTERNAL_DB_CORRUPTION;
if (ret != LDB_SUCCESS) goto failed;
talloc_steal(tmp_ctx, res);
- if (res->count == 0) goto done;
for (i=0; i < res->count; i++) {
wins_owner = ldb_msg_find_string(res->msgs[i], "winsOwner", NULL);
version = ldb_msg_find_uint64(res->msgs[i], "versionID", 0);
- if (wins_owner) {
- status = wreplsrv_add_table(service,
- service, &service->table,
- wins_owner, version);
- if (!NT_STATUS_IS_OK(status)) goto failed;
- }
+ status = wreplsrv_add_table(service,
+ service, &service->table,
+ wins_owner, version);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
talloc_free(res->msgs[i]);
-
- /* TODO: what's abut the per address owners? */
}
-done:
+
+ /*
+ * this makes sure we call wreplsrv_local_max_version() before returning in
+ * wreplsrv_find_owner()
+ */
+ service->owner = local_owner;
+
+ /*
+ * this makes sure the maxVersion in the database is updated,
+ * with the highest version we found, if this is higher than the current stored one
+ */
+ status = wreplsrv_add_table(service,
+ service, &service->table,
+ service->wins_db->local_owner, local_owner->owner.max_version);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
status = wreplsrv_load_table(service);
NT_STATUS_NOT_OK_RETURN(status);
- status = wreplsrv_setup_out_connections(service);
- NT_STATUS_NOT_OK_RETURN(status);
-
return NT_STATUS_OK;
}
NTSTATUS status;
struct wreplsrv_service *service;
+ task_server_set_title(task, "task[wreplsrv]");
+
service = talloc_zero(task, struct wreplsrv_service);
if (!service) {
task_server_terminate(task, "wreplsrv_task_init: out of memory");
return;
}
- service->task = task;
- task->private = service;
+ service->task = task;
+ service->startup_time = timeval_current();
+ task->private = service;
/*
* setup up all partners, and open the winsdb
return;
}
+ status = wreplsrv_setup_periodic(service);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "wreplsrv_task_init: wreplsrv_setup_periodic() failed");
+ return;
+ }
+
irpc_add_name(task->msg_ctx, "wrepl_server");
}
git.samba.org / kai / samba.git / blobdiff