#include "includes.h"
#include "winbindd.h"
-#include "../../nsswitch/libwbclient/wbc_async.h"
+#include "rpc_client/rpc_client.h"
+#include "nsswitch/wb_reqtrans.h"
+#include "secrets.h"
+#include "../lib/util/select.h"
+#include "../libcli/security/security.h"
+#include "system/select.h"
+#include "messages.h"
+#include "../lib/util/tevent_unix.h"
+#include "lib/param/loadparm.h"
+#include "lib/util/sys_rw.h"
+#include "lib/util/sys_rw_data.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
extern bool override_logfile;
-extern struct winbindd_methods cache_methods;
+
+static struct winbindd_child *winbindd_children = NULL;
/* Read some data from a client connection */
-static NTSTATUS child_read_request(struct winbindd_cli_state *state)
+static NTSTATUS child_read_request(int sock, struct winbindd_request *wreq)
{
NTSTATUS status;
- /* Read data */
-
- status = read_data(state->sock, (char *)state->request,
- sizeof(*state->request));
-
+ status = read_data_ntstatus(sock, (char *)wreq, sizeof(*wreq));
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("child_read_request: read_data failed: %s\n",
nt_errstr(status)));
return status;
}
- if (state->request->extra_len == 0) {
- state->request->extra_data.data = NULL;
+ if (wreq->extra_len == 0) {
+ wreq->extra_data.data = NULL;
return NT_STATUS_OK;
}
- DEBUG(10, ("Need to read %d extra bytes\n", (int)state->request->extra_len));
+ DEBUG(10, ("Need to read %d extra bytes\n", (int)wreq->extra_len));
- state->request->extra_data.data =
- SMB_MALLOC_ARRAY(char, state->request->extra_len + 1);
-
- if (state->request->extra_data.data == NULL) {
+ wreq->extra_data.data = SMB_MALLOC_ARRAY(char, wreq->extra_len + 1);
+ if (wreq->extra_data.data == NULL) {
DEBUG(0, ("malloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
/* Ensure null termination */
- state->request->extra_data.data[state->request->extra_len] = '\0';
-
- status= read_data(state->sock, state->request->extra_data.data,
- state->request->extra_len);
+ wreq->extra_data.data[wreq->extra_len] = '\0';
+ status = read_data_ntstatus(sock, wreq->extra_data.data,
+ wreq->extra_len);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Could not read extra data: %s\n",
nt_errstr(status)));
return status;
}
+static NTSTATUS child_write_response(int sock, struct winbindd_response *wrsp)
+{
+ struct iovec iov[2];
+ int iov_count;
+
+ iov[0].iov_base = (void *)wrsp;
+ iov[0].iov_len = sizeof(struct winbindd_response);
+ iov_count = 1;
+
+ if (wrsp->length > sizeof(struct winbindd_response)) {
+ iov[1].iov_base = (void *)wrsp->extra_data.data;
+ iov[1].iov_len = wrsp->length-iov[0].iov_len;
+ iov_count = 2;
+ }
+
+ DEBUG(10, ("Writing %d bytes to parent\n", (int)wrsp->length));
+
+ if (write_data_iov(sock, iov, iov_count) != wrsp->length) {
+ DEBUG(0, ("Could not write result\n"));
+ return NT_STATUS_INVALID_HANDLE;
+ }
+
+ return NT_STATUS_OK;
+}
+
/*
* Do winbind child async request. This is not simply wb_simple_trans. We have
* to do the queueing ourselves because while a request is queued, the child
struct wb_child_request_state {
struct tevent_context *ev;
+ struct tevent_req *subreq;
struct winbindd_child *child;
struct winbindd_request *request;
struct winbindd_response *response;
void *private_data);
static void wb_child_request_done(struct tevent_req *subreq);
+static void wb_child_request_cleanup(struct tevent_req *req,
+ enum tevent_req_state req_state);
+
struct tevent_req *wb_child_request_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct winbindd_child *child,
if (!tevent_queue_add(child->queue, ev, req,
wb_child_request_trigger, NULL)) {
- tevent_req_nomem(NULL, req);
+ tevent_req_oom(req);
return tevent_req_post(req, ev);
}
+
+ tevent_req_set_cleanup_fn(req, wb_child_request_cleanup);
+
return req;
}
req, struct wb_child_request_state);
struct tevent_req *subreq;
- if ((state->child->pid == 0) && (!fork_domain_child(state->child))) {
+ if ((state->child->sock == -1) && (!fork_domain_child(state->child))) {
tevent_req_error(req, errno);
return;
}
- subreq = wb_simple_trans_send(state, winbind_event_context(), NULL,
+ subreq = wb_simple_trans_send(state, server_event_context(), NULL,
state->child->sock, state->request);
if (tevent_req_nomem(subreq, req)) {
return;
}
- tevent_req_set_callback(subreq, wb_child_request_done, req);
- if (!tevent_req_set_endtime(req, state->ev,
- timeval_current_ofs(300, 0))) {
- tevent_req_nomem(NULL, req);
- return;
- }
+ state->subreq = subreq;
+ tevent_req_set_callback(subreq, wb_child_request_done, req);
+ tevent_req_set_endtime(req, state->ev, timeval_current_ofs(300, 0));
}
static void wb_child_request_done(struct tevent_req *subreq)
int ret, err;
ret = wb_simple_trans_recv(subreq, state, &state->response, &err);
- TALLOC_FREE(subreq);
+ /* Freeing the subrequest is deferred until the cleanup function,
+ * which has to know whether a subrequest exists, and consequently
+ * decide whether to shut down the pipe to the child process.
+ */
if (ret == -1) {
tevent_req_error(req, err);
return;
return 0;
}
+static void wb_child_request_cleanup(struct tevent_req *req,
+ enum tevent_req_state req_state)
+{
+ struct wb_child_request_state *state =
+ tevent_req_data(req, struct wb_child_request_state);
+
+ if (state->subreq == NULL) {
+ /* nothing to cleanup */
+ return;
+ }
+
+ TALLOC_FREE(state->subreq);
+
+ if (req_state == TEVENT_REQ_DONE) {
+ /* transmitted request and got response */
+ return;
+ }
+
+ /*
+ * Failed to transmit and receive response, or request
+ * cancelled while being serviced.
+ * The basic parent/child communication broke, close
+ * our socket
+ */
+ close(state->child->sock);
+ state->child->sock = -1;
+ DLIST_REMOVE(winbindd_children, state->child);
+}
+
+struct winbindd_child *choose_domain_child(struct winbindd_domain *domain)
+{
+ struct winbindd_child *shortest = &domain->children[0];
+ struct winbindd_child *current;
+ int i;
+
+ for (i=0; i<lp_winbind_max_domain_connections(); i++) {
+ size_t shortest_len, current_len;
+
+ current = &domain->children[i];
+ current_len = tevent_queue_length(current->queue);
+
+ if (current_len == 0) {
+ /* idle child */
+ return current;
+ }
+
+ shortest_len = tevent_queue_length(shortest->queue);
+
+ if (current_len < shortest_len) {
+ shortest = current;
+ }
+ }
+
+ return shortest;
+}
+
+struct dcerpc_binding_handle *dom_child_handle(struct winbindd_domain *domain)
+{
+ struct winbindd_child *child;
+
+ child = choose_domain_child(domain);
+ return child->binding_handle;
+}
+
struct wb_domain_request_state {
struct tevent_context *ev;
struct winbindd_domain *domain;
+ struct winbindd_child *child;
struct winbindd_request *request;
struct winbindd_request *init_req;
struct winbindd_response *response;
return NULL;
}
+ state->child = choose_domain_child(domain);
+
if (domain->initialized) {
- subreq = wb_child_request_send(state, ev, &domain->child,
+ subreq = wb_child_request_send(state, ev, state->child,
request);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
/* The primary domain has to find the DC name itself */
state->init_req->cmd = WINBINDD_INIT_CONNECTION;
fstrcpy(state->init_req->domain_name, domain->name);
- state->init_req->data.init_conn.is_primary =
- domain->primary ? true : false;
+ state->init_req->data.init_conn.is_primary = domain->primary;
fstrcpy(state->init_req->data.init_conn.dcname, "");
- subreq = wb_child_request_send(state, ev, &domain->child,
+ subreq = wb_child_request_send(state, ev, state->child,
state->init_req);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
state->init_req->cmd = WINBINDD_GETDCNAME;
fstrcpy(state->init_req->domain_name, domain->name);
- subreq = wb_child_request_send(state, ev, &domain->child, request);
+ subreq = wb_child_request_send(state, ev, state->child, request);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
TALLOC_FREE(response);
- subreq = wb_child_request_send(state, state->ev, &state->domain->child,
+ subreq = wb_child_request_send(state, state->ev, state->child,
state->init_req);
if (tevent_req_nomem(subreq, req)) {
return;
tevent_req_error(req, EINVAL);
return;
}
- fstrcpy(state->domain->name, response->data.domain_info.name);
- fstrcpy(state->domain->alt_name, response->data.domain_info.alt_name);
+
+ talloc_free(state->domain->name);
+ state->domain->name = talloc_strdup(state->domain,
+ response->data.domain_info.name);
+ if (state->domain->name == NULL) {
+ tevent_req_error(req, ENOMEM);
+ return;
+ }
+
+ if (response->data.domain_info.alt_name[0] != '\0') {
+ talloc_free(state->domain->alt_name);
+
+ state->domain->alt_name = talloc_strdup(state->domain,
+ response->data.domain_info.alt_name);
+ if (state->domain->alt_name == NULL) {
+ tevent_req_error(req, ENOMEM);
+ return;
+ }
+ }
+
state->domain->native_mode = response->data.domain_info.native_mode;
state->domain->active_directory =
response->data.domain_info.active_directory;
TALLOC_FREE(response);
- subreq = wb_child_request_send(state, state->ev, &state->domain->child,
+ subreq = wb_child_request_send(state, state->ev, state->child,
state->request);
if (tevent_req_nomem(subreq, req)) {
return;
return 0;
}
-/*
- * Machinery for async requests sent to children. You set up a
- * winbindd_request, select a child to query, and issue a async_request
- * call. When the request is completed, the callback function you specified is
- * called back with the private pointer you gave to async_request.
- */
-
-struct winbindd_async_request {
- struct winbindd_async_request *next, *prev;
- TALLOC_CTX *mem_ctx;
- struct winbindd_child *child;
- struct winbindd_response *response;
- void (*continuation)(void *private_data, bool success);
- struct timed_event *reply_timeout_event;
- pid_t child_pid; /* pid of the child we're waiting on. Used to detect
- a restart of the child (child->pid != child_pid). */
- void *private_data;
-};
-
-static void async_request_done(struct tevent_req *req);
-
-void async_request(TALLOC_CTX *mem_ctx, struct winbindd_child *child,
- struct winbindd_request *request,
- struct winbindd_response *response,
- void (*continuation)(void *private_data, bool success),
- void *private_data)
-{
- struct winbindd_async_request *state;
- struct tevent_req *req;
-
- DEBUG(10, ("Sending request to child pid %d (domain=%s)\n",
- (int)child->pid,
- (child->domain != NULL) ? child->domain->name : "''"));
-
- state = talloc(mem_ctx, struct winbindd_async_request);
- if (state == NULL) {
- DEBUG(0, ("talloc failed\n"));
- continuation(private_data, False);
- return;
- }
-
- state->mem_ctx = mem_ctx;
- state->child = child;
- state->reply_timeout_event = NULL;
- state->response = response;
- state->continuation = continuation;
- state->private_data = private_data;
-
- request->pid = child->pid;
-
- req = wb_child_request_send(state, winbind_event_context(),
- child, request);
- if (req == NULL) {
- DEBUG(0, ("wb_child_request_send failed\n"));
- continuation(private_data, false);
- return;
- }
- tevent_req_set_callback(req, async_request_done, state);
-}
-
-static void async_request_done(struct tevent_req *req)
-{
- struct winbindd_async_request *state = tevent_req_callback_data(
- req, struct winbindd_async_request);
- struct winbindd_response *response;
- int ret, err;
-
- ret = wb_child_request_recv(req, state, &response, &err);
- TALLOC_FREE(req);
- if (ret == -1) {
- DEBUG(2, ("wb_child_request_recv failed: %s\n",
- strerror(err)));
- state->continuation(state->private_data, false);
- return;
- }
- *state->response = *response;
- state->continuation(state->private_data, true);
-}
-
-struct domain_request_state {
- struct winbindd_domain *domain;
- struct winbindd_request *request;
- struct winbindd_response *response;
- void (*continuation)(void *private_data_data, bool success);
- void *private_data_data;
-};
-
-static void async_domain_request_done(struct tevent_req *req);
-
-void async_domain_request(TALLOC_CTX *mem_ctx,
- struct winbindd_domain *domain,
- struct winbindd_request *request,
- struct winbindd_response *response,
- void (*continuation)(void *private_data_data, bool success),
- void *private_data_data)
-{
- struct tevent_req *subreq;
- struct domain_request_state *state;
-
- state = TALLOC_P(mem_ctx, struct domain_request_state);
- if (state == NULL) {
- DEBUG(0, ("talloc failed\n"));
- continuation(private_data_data, False);
- return;
- }
-
- state->domain = domain;
- state->request = request;
- state->response = response;
- state->continuation = continuation;
- state->private_data_data = private_data_data;
-
- subreq = wb_domain_request_send(state, winbind_event_context(),
- domain, request);
- if (subreq == NULL) {
- DEBUG(5, ("wb_domain_request_send failed\n"));
- continuation(private_data_data, false);
- return;
- }
- tevent_req_set_callback(subreq, async_domain_request_done, state);
-}
-
-static void async_domain_request_done(struct tevent_req *req)
-{
- struct domain_request_state *state = tevent_req_callback_data(
- req, struct domain_request_state);
- struct winbindd_response *response;
- int ret, err;
-
- ret = wb_domain_request_recv(req, state, &response, &err);
- TALLOC_FREE(req);
- if (ret == -1) {
- DEBUG(5, ("wb_domain_request returned %s\n", strerror(err)));
- state->continuation(state->private_data_data, false);
- return;
- }
- *(state->response) = *response;
- state->continuation(state->private_data_data, true);
-}
-
-static void recvfrom_child(void *private_data_data, bool success)
-{
- struct winbindd_cli_state *state =
- talloc_get_type_abort(private_data_data, struct winbindd_cli_state);
- enum winbindd_result result = state->response->result;
-
- /* This is an optimization: The child has written directly to the
- * response buffer. The request itself is still in pending state,
- * state that in the result code. */
-
- state->response->result = WINBINDD_PENDING;
-
- if ((!success) || (result != WINBINDD_OK)) {
- request_error(state);
- return;
- }
-
- request_ok(state);
-}
-
-void sendto_child(struct winbindd_cli_state *state,
- struct winbindd_child *child)
-{
- async_request(state->mem_ctx, child, state->request,
- state->response, recvfrom_child, state);
-}
-
-void sendto_domain(struct winbindd_cli_state *state,
- struct winbindd_domain *domain)
-{
- async_domain_request(state->mem_ctx, domain,
- state->request, state->response,
- recvfrom_child, state);
-}
-
static void child_process_request(struct winbindd_child *child,
struct winbindd_cli_state *state)
{
}
}
- DEBUG(1 ,("child_process_request: unknown request fn number %d\n",
+ DEBUG(1, ("child_process_request: unknown request fn number %d\n",
(int)state->request->cmd));
state->response->result = WINBINDD_ERROR;
}
const char *logname)
{
if (logprefix && logname) {
+ char *logbase = NULL;
+
+ if (*lp_logfile(talloc_tos())) {
+ char *end = NULL;
+
+ if (asprintf(&logbase, "%s", lp_logfile(talloc_tos())) < 0) {
+ smb_panic("Internal error: asprintf failed");
+ }
+
+ if ((end = strrchr_m(logbase, '/'))) {
+ *end = '\0';
+ }
+ } else {
+ if (asprintf(&logbase, "%s", get_dyn_LOGFILEBASE()) < 0) {
+ smb_panic("Internal error: asprintf failed");
+ }
+ }
+
if (asprintf(&child->logfilename, "%s/%s-%s",
- get_dyn_LOGFILEBASE(), logprefix, logname) < 0) {
+ logbase, logprefix, logname) < 0) {
+ SAFE_FREE(logbase);
smb_panic("Internal error: asprintf failed");
}
+
+ SAFE_FREE(logbase);
} else {
smb_panic("Internal error: logprefix == NULL && "
"logname == NULL");
}
- child->domain = NULL;
+ child->sock = -1;
+ child->domain = domain;
child->table = table;
child->queue = tevent_queue_create(NULL, "winbind_child");
SMB_ASSERT(child->queue != NULL);
- child->rpccli = wbint_rpccli_create(NULL, domain, child);
- SMB_ASSERT(child->rpccli != NULL);
+ child->binding_handle = wbint_binding_handle(NULL, domain, child);
+ SMB_ASSERT(child->binding_handle != NULL);
}
-struct winbindd_child *children = NULL;
-
void winbind_child_died(pid_t pid)
{
struct winbindd_child *child;
- for (child = children; child != NULL; child = child->next) {
+ for (child = winbindd_children; child != NULL; child = child->next) {
if (child->pid == pid) {
break;
}
/* This will be re-added in fork_domain_child() */
- DLIST_REMOVE(children, child);
-
- close(child->sock);
- child->sock = -1;
+ DLIST_REMOVE(winbindd_children, child);
child->pid = 0;
+
+ if (child->sock != -1) {
+ close(child->sock);
+ child->sock = -1;
+ }
}
/* Ensure any negative cache entries with the netbios or realm names are removed. */
void winbindd_flush_negative_conn_cache(struct winbindd_domain *domain)
{
flush_negative_conn_cache_for_domain(domain->name);
- if (*domain->alt_name) {
+ if (domain->alt_name != NULL) {
flush_negative_conn_cache_for_domain(domain->alt_name);
}
}
debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
- for (child = children; child != NULL; child = child->next) {
+ for (child = winbindd_children; child != NULL; child = child->next) {
DEBUG(10,("winbind_msg_debug: sending message to pid %u.\n",
(unsigned int)child->pid));
set_domain_offline(domain);
}
- for (child = children; child != NULL; child = child->next) {
- /* Don't send message to internal childs. We've already
+ for (child = winbindd_children; child != NULL; child = child->next) {
+ /* Don't send message to internal children. We've already
done so above. */
if (!child->domain || winbindd_internal_child(child)) {
continue;
we only set it online / offline for that domain. */
DEBUG(10,("winbind_msg_offline: sending message to pid %u for domain %s.\n",
- (unsigned int)child->pid, domain->name ));
+ (unsigned int)child->pid, child->domain->name ));
messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
MSG_WINBIND_OFFLINE,
- (uint8 *)child->domain->name,
+ (const uint8_t *)child->domain->name,
strlen(child->domain->name)+1);
}
}
messaging_send_buf(msg_ctx,
pid_to_procid(idmap->pid),
MSG_WINBIND_ONLINE,
- (uint8 *)domain->name,
+ (const uint8_t *)domain->name,
strlen(domain->name)+1);
}
}
}
- for (child = children; child != NULL; child = child->next) {
+ for (child = winbindd_children; child != NULL; child = child->next) {
/* Don't send message to internal childs. */
if (!child->domain || winbindd_internal_child(child)) {
continue;
messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
MSG_WINBIND_ONLINE,
- (uint8 *)child->domain->name,
+ (const uint8_t *)child->domain->name,
strlen(child->domain->name)+1);
}
}
TALLOC_CTX *mem_ctx;
const char *message;
struct server_id *sender;
-
+
DEBUG(5,("winbind_msg_onlinestatus received.\n"));
if (!data->data) {
if (mem_ctx == NULL) {
return;
}
-
+
message = collect_onlinestatus(mem_ctx);
if (message == NULL) {
talloc_destroy(mem_ctx);
}
messaging_send_buf(msg_ctx, *sender, MSG_WINBIND_ONLINESTATUS,
- (uint8 *)message, strlen(message) + 1);
+ (const uint8_t *)message, strlen(message) + 1);
talloc_destroy(mem_ctx);
}
DEBUG(10,("winbind_msg_dump_event_list received\n"));
- dump_event_list(winbind_event_context());
+ DBG_WARNING("dump event list no longer implemented\n");
- for (child = children; child != NULL; child = child->next) {
+ for (child = winbindd_children; child != NULL; child = child->next) {
DEBUG(10,("winbind_msg_dump_event_list: sending message to pid %u\n",
(unsigned int)child->pid));
messaging_send_buf(msg_ctx, *sender,
MSG_WINBIND_DUMP_DOMAIN_LIST,
- (uint8_t *)message, strlen(message) + 1);
+ (const uint8_t *)message, strlen(message) + 1);
talloc_destroy(mem_ctx);
talloc_destroy(mem_ctx);
}
-static void account_lockout_policy_handler(struct event_context *ctx,
- struct timed_event *te,
+static void account_lockout_policy_handler(struct tevent_context *ctx,
+ struct tevent_timer *te,
struct timeval now,
void *private_data)
{
struct winbindd_child *child =
(struct winbindd_child *)private_data;
TALLOC_CTX *mem_ctx = NULL;
- struct winbindd_methods *methods;
struct samr_DomInfo12 lockout_policy;
NTSTATUS result;
return;
}
- methods = child->domain->methods;
-
mem_ctx = talloc_init("account_lockout_policy_handler ctx");
if (!mem_ctx) {
result = NT_STATUS_NO_MEMORY;
} else {
- result = methods->lockout_policy(child->domain, mem_ctx, &lockout_policy);
+ result = wb_cache_lockout_policy(child->domain, mem_ctx,
+ &lockout_policy);
}
TALLOC_FREE(mem_ctx);
nt_errstr(result)));
}
- child->lockout_policy_event = event_add_timed(winbind_event_context(), NULL,
+ child->lockout_policy_event = tevent_add_timer(server_event_context(), NULL,
timeval_current_ofs(3600, 0),
account_lockout_policy_handler,
child);
time_t pass_last_set_time;
time_t timeout;
time_t next_change;
+ struct timeval tv;
char *pw;
pw = secrets_fetch_machine_password(domain,
return false;
}
+ tv.tv_sec = pass_last_set_time;
+ DEBUG(10, ("password last changed %s\n",
+ timeval_string(talloc_tos(), &tv, false)));
+ tv.tv_sec += timeout;
+ DEBUGADD(10, ("password valid until %s\n",
+ timeval_string(talloc_tos(), &tv, false)));
+
if (time(NULL) < (pass_last_set_time + timeout)) {
next_change = pass_last_set_time + timeout;
DEBUG(10,("machine password still valid until: %s\n",
http_timestring(talloc_tos(), next_change)));
*t = timeval_set(next_change, 0);
+
+ if (lp_clustering()) {
+ uint8_t randbuf;
+ /*
+ * When having a cluster, we have several
+ * winbinds racing for the password change. In
+ * the machine_password_change_handler()
+ * function we check if someone else was
+ * faster when the event triggers. We add a
+ * 255-second random delay here, so that we
+ * don't run to change the password at the
+ * exact same moment.
+ */
+ generate_random_buffer(&randbuf, sizeof(randbuf));
+ DEBUG(10, ("adding %d seconds randomness\n",
+ (int)randbuf));
+ t->tv_sec += randbuf;
+ }
return true;
}
return true;
}
-static void machine_password_change_handler(struct event_context *ctx,
- struct timed_event *te,
+static void machine_password_change_handler(struct tevent_context *ctx,
+ struct tevent_timer *te,
struct timeval now,
void *private_data)
{
+ struct messaging_context *msg_ctx = server_messaging_context();
struct winbindd_child *child =
(struct winbindd_child *)private_data;
struct rpc_pipe_client *netlogon_pipe = NULL;
- TALLOC_CTX *frame;
+ struct netlogon_creds_cli_context *netlogon_creds_ctx = NULL;
NTSTATUS result;
struct timeval next_change;
if (!calculate_next_machine_pwd_change(child->domain->name,
&next_change)) {
+ DEBUG(10, ("calculate_next_machine_pwd_change failed\n"));
return;
}
+ DEBUG(10, ("calculate_next_machine_pwd_change returned %s\n",
+ timeval_string(talloc_tos(), &next_change, false)));
+
+ if (!timeval_expired(&next_change)) {
+ DEBUG(10, ("Someone else has already changed the pw\n"));
+ goto done;
+ }
+
if (!winbindd_can_contact_domain(child->domain)) {
DEBUG(10,("machine_password_change_handler: Removing myself since I "
"do not have an incoming trust to domain %s\n",
return;
}
- result = cm_connect_netlogon(child->domain, &netlogon_pipe);
+ result = cm_connect_netlogon_secure(child->domain,
+ &netlogon_pipe,
+ &netlogon_creds_ctx);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(10,("machine_password_change_handler: "
"failed to connect netlogon pipe: %s\n",
return;
}
- frame = talloc_stackframe();
+ result = trust_pw_change(netlogon_creds_ctx,
+ msg_ctx,
+ netlogon_pipe->binding_handle,
+ child->domain->name,
+ child->domain->dcname,
+ false); /* force */
- result = trust_pw_find_change_and_store_it(netlogon_pipe,
- frame,
- child->domain->name);
- TALLOC_FREE(frame);
+ DEBUG(10, ("machine_password_change_handler: "
+ "trust_pw_change returned %s\n",
+ nt_errstr(result)));
+
+ if (NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
+ DEBUG(3,("machine_password_change_handler: password set returned "
+ "ACCESS_DENIED. Maybe the trust account "
+ "password was changed and we didn't know it. "
+ "Killing connections to domain %s\n",
+ child->domain->name));
+ invalidate_cm_connection(child->domain);
+ }
+
+ if (!calculate_next_machine_pwd_change(child->domain->name,
+ &next_change)) {
+ DEBUG(10, ("calculate_next_machine_pwd_change failed\n"));
+ return;
+ }
+
+ DEBUG(10, ("calculate_next_machine_pwd_change returned %s\n",
+ timeval_string(talloc_tos(), &next_change, false)));
if (!NT_STATUS_IS_OK(result)) {
- DEBUG(10,("machine_password_change_handler: "
- "failed to change machine password: %s\n",
- nt_errstr(result)));
- if (NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED) ) {
- DEBUG(3,("machine_password_change_handler: password set returned "
- "ACCESS_DENIED. Maybe the trust account "
- "password was changed and we didn't know it. "
- "Killing connections to domain %s\n",
- child->domain->name));
- invalidate_cm_connection(&child->domain->conn);
- }
- } else {
- DEBUG(10,("machine_password_change_handler: "
- "successfully changed machine password\n"));
+ struct timeval tmp;
+ /*
+ * In case of failure, give the DC a minute to recover
+ */
+ tmp = timeval_current_ofs(60, 0);
+ next_change = timeval_max(&next_change, &tmp);
}
- child->machine_password_change_event = event_add_timed(winbind_event_context(), NULL,
+done:
+ child->machine_password_change_event = tevent_add_timer(server_event_context(), NULL,
next_change,
machine_password_change_handler,
child);
DATA_BLOB *data)
{
DEBUG(5,("child_msg_dump_event_list received\n"));
-
- dump_event_list(winbind_event_context());
+ DBG_WARNING("dump_event_list no longer implemented\n");
}
-bool winbindd_reinit_after_fork(const char *logfilename)
+NTSTATUS winbindd_reinit_after_fork(const struct winbindd_child *myself,
+ const char *logfilename)
{
struct winbindd_domain *domain;
struct winbindd_child *cl;
+ NTSTATUS status;
- if (!NT_STATUS_IS_OK(reinit_after_fork(winbind_messaging_context(),
- winbind_event_context(),
- true))) {
+ status = reinit_after_fork(
+ server_messaging_context(),
+ server_event_context(),
+ true, NULL);
+ if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("reinit_after_fork() failed\n"));
- return false;
+ return status;
}
close_conns_after_fork();
}
if (!winbindd_setup_sig_term_handler(false))
- return false;
+ return NT_STATUS_NO_MEMORY;
if (!winbindd_setup_sig_hup_handler(override_logfile ? NULL :
logfilename))
- return false;
+ return NT_STATUS_NO_MEMORY;
+
+ /* Stop zombies in children */
+ CatchChild();
/* Don't handle the same messages as our parent. */
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_SMB_CONF_UPDATED, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_SHUTDOWN, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_WINBIND_OFFLINE, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_WINBIND_ONLINE, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_WINBIND_ONLINESTATUS, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_DUMP_EVENT_LIST, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_WINBIND_DUMP_DOMAIN_LIST, NULL);
- messaging_deregister(winbind_messaging_context(),
+ messaging_deregister(server_messaging_context(),
MSG_DEBUG, NULL);
+ messaging_deregister(server_messaging_context(),
+ MSG_WINBIND_DOMAIN_OFFLINE, NULL);
+ messaging_deregister(server_messaging_context(),
+ MSG_WINBIND_DOMAIN_ONLINE, NULL);
+
/* We have destroyed all events in the winbindd_event_context
* in reinit_after_fork(), so clean out all possible pending
* event pointers. */
ccache_remove_all_after_fork();
/* Destroy all possible events in child list. */
- for (cl = children; cl != NULL; cl = cl->next) {
+ for (cl = winbindd_children; cl != NULL; cl = cl->next) {
TALLOC_FREE(cl->lockout_policy_event);
TALLOC_FREE(cl->machine_password_change_event);
* go through the parent.
*/
cl->pid = (pid_t)0;
+
+ /*
+ * Close service sockets to all other children
+ */
+ if ((cl != myself) && (cl->sock != -1)) {
+ close(cl->sock);
+ cl->sock = -1;
+ }
}
/*
* This is a little tricky, children must not
cl = idmap_child();
cl->pid = (pid_t)0;
- return true;
+ return NT_STATUS_OK;
}
/*
return child_domain;
}
+struct child_handler_state {
+ struct winbindd_child *child;
+ struct winbindd_cli_state cli;
+};
+
+static void child_handler(struct tevent_context *ev, struct tevent_fd *fde,
+ uint16_t flags, void *private_data)
+{
+ struct child_handler_state *state =
+ (struct child_handler_state *)private_data;
+ NTSTATUS status;
+
+ /* fetch a request from the main daemon */
+ status = child_read_request(state->cli.sock, state->cli.request);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ /* we lost contact with our parent */
+ _exit(0);
+ }
+
+ DEBUG(4,("child daemon request %d\n",
+ (int)state->cli.request->cmd));
+
+ ZERO_STRUCTP(state->cli.response);
+ state->cli.request->null_term = '\0';
+ state->cli.mem_ctx = talloc_tos();
+ child_process_request(state->child, &state->cli);
+
+ DEBUG(4, ("Finished processing child request %d\n",
+ (int)state->cli.request->cmd));
+
+ SAFE_FREE(state->cli.request->extra_data.data);
+
+ status = child_write_response(state->cli.sock, state->cli.response);
+ if (!NT_STATUS_IS_OK(status)) {
+ exit(1);
+ }
+}
+
static bool fork_domain_child(struct winbindd_child *child)
{
int fdpair[2];
- struct winbindd_cli_state state;
+ struct child_handler_state state;
struct winbindd_request request;
struct winbindd_response response;
struct winbindd_domain *primary_domain = NULL;
+ NTSTATUS status;
+ ssize_t nwritten;
+ struct tevent_fd *fde;
if (child->domain) {
DEBUG(10, ("fork_domain_child called for domain '%s'\n",
} else {
DEBUG(10, ("fork_domain_child called without domain.\n"));
}
- child_domain = child->domain;
if (socketpair(AF_UNIX, SOCK_STREAM, 0, fdpair) != 0) {
DEBUG(0, ("Could not open child pipe: %s\n",
}
ZERO_STRUCT(state);
- state.pid = sys_getpid();
- state.request = &request;
- state.response = &response;
+ state.child = child;
+ state.cli.pid = getpid();
+ state.cli.request = &request;
+ state.cli.response = &response;
- child->pid = sys_fork();
+ child->pid = fork();
if (child->pid == -1) {
DEBUG(0, ("Could not fork: %s\n", strerror(errno)));
+ close(fdpair[0]);
+ close(fdpair[1]);
return False;
}
if (child->pid != 0) {
/* Parent */
+ ssize_t nread;
+
close(fdpair[0]);
+
+ nread = sys_read(fdpair[1], &status, sizeof(status));
+ if (nread != sizeof(status)) {
+ DEBUG(1, ("fork_domain_child: Could not read child status: "
+ "nread=%d, error=%s\n", (int)nread,
+ strerror(errno)));
+ close(fdpair[1]);
+ return false;
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("fork_domain_child: Child status is %s\n",
+ nt_errstr(status)));
+ close(fdpair[1]);
+ return false;
+ }
+
child->next = child->prev = NULL;
- DLIST_ADD(children, child);
+ DLIST_ADD(winbindd_children, child);
child->sock = fdpair[1];
return True;
}
/* Child */
+ child_domain = child->domain;
- DEBUG(10, ("Child process %d\n", (int)sys_getpid()));
+ DEBUG(10, ("Child process %d\n", (int)getpid()));
- /* Stop zombies in children */
- CatchChild();
-
- state.sock = fdpair[0];
+ state.cli.sock = fdpair[0];
close(fdpair[1]);
- if (!winbindd_reinit_after_fork(child->logfilename)) {
+ status = winbindd_reinit_after_fork(child, child->logfilename);
+
+ nwritten = sys_write(state.cli.sock, &status, sizeof(status));
+ if (nwritten != sizeof(status)) {
+ DEBUG(1, ("fork_domain_child: Could not write status: "
+ "nwritten=%d, error=%s\n", (int)nwritten,
+ strerror(errno)));
_exit(0);
}
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("winbindd_reinit_after_fork failed: %s\n",
+ nt_errstr(status)));
+ _exit(0);
+ }
+
+ if (child_domain != NULL) {
+ setproctitle("domain child [%s]", child_domain->name);
+ } else if (child == idmap_child()) {
+ setproctitle("idmap child");
+ }
/* Handle online/offline messages. */
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(server_messaging_context(), NULL,
MSG_WINBIND_OFFLINE, child_msg_offline);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(server_messaging_context(), NULL,
MSG_WINBIND_ONLINE, child_msg_online);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(server_messaging_context(), NULL,
MSG_DUMP_EVENT_LIST, child_msg_dump_event_list);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(server_messaging_context(), NULL,
MSG_DEBUG, debug_message);
+ messaging_register(server_messaging_context(), NULL,
+ MSG_WINBIND_IP_DROPPED,
+ winbind_msg_ip_dropped);
+
primary_domain = find_our_domain();
* try to bring domain online after fork. */
if ( child->domain ) {
child->domain->startup = True;
- child->domain->startup_time = time(NULL);
+ child->domain->startup_time = time_mono(NULL);
/* we can be in primary domain or in trusted domain
* If we are in trusted domain, set the primary domain
* in start-up mode */
set_domain_online_request(child->domain);
if (!(child->domain->primary)) {
primary_domain->startup = True;
- primary_domain->startup_time = time(NULL);
+ primary_domain->startup_time = time_mono(NULL);
set_domain_online_request(primary_domain);
}
}
set_domain_online_request(primary_domain);
}
- child->lockout_policy_event = event_add_timed(
- winbind_event_context(), NULL, timeval_zero(),
+ child->lockout_policy_event = tevent_add_timer(
+ server_event_context(), NULL, timeval_zero(),
account_lockout_policy_handler,
child);
}
if (calculate_next_machine_pwd_change(child->domain->name,
&next_change)) {
- child->machine_password_change_event = event_add_timed(
- winbind_event_context(), NULL, next_change,
+ child->machine_password_change_event = tevent_add_timer(
+ server_event_context(), NULL, next_change,
machine_password_change_handler,
child);
}
}
+ fde = tevent_add_fd(server_event_context(), NULL, state.cli.sock,
+ TEVENT_FD_READ, child_handler, &state);
+ if (fde == NULL) {
+ DEBUG(1, ("tevent_add_fd failed\n"));
+ _exit(1);
+ }
+
while (1) {
int ret;
- fd_set r_fds;
- fd_set w_fds;
- int maxfd;
- struct timeval t;
- struct timeval *tp;
- struct timeval now;
TALLOC_CTX *frame = talloc_stackframe();
- struct iovec iov[2];
- int iov_count;
- NTSTATUS status;
- if (run_events(winbind_event_context(), 0, NULL, NULL)) {
- TALLOC_FREE(frame);
- continue;
+ ret = tevent_loop_once(server_event_context());
+ if (ret != 0) {
+ DEBUG(1, ("tevent_loop_once failed: %s\n",
+ strerror(errno)));
+ _exit(1);
}
- GetTimeOfDay(&now);
-
if (child->domain && child->domain->startup &&
- (now.tv_sec > child->domain->startup_time + 30)) {
+ (time_mono(NULL) > child->domain->startup_time + 30)) {
/* No longer in "startup" mode. */
DEBUG(10,("fork_domain_child: domain %s no longer in 'startup' mode.\n",
child->domain->name ));
child->domain->startup = False;
}
- FD_ZERO(&r_fds);
- FD_ZERO(&w_fds);
- FD_SET(state.sock, &r_fds);
- maxfd = state.sock;
-
- event_add_to_select_args(winbind_event_context(), &now,
- &r_fds, &w_fds, &t, &maxfd);
- tp = get_timed_events_timeout(winbind_event_context(), &t);
- if (tp) {
- DEBUG(11,("select will use timeout of %u.%u seconds\n",
- (unsigned int)tp->tv_sec, (unsigned int)tp->tv_usec ));
- }
-
- ret = sys_select(maxfd + 1, &r_fds, &w_fds, NULL, tp);
-
- if (run_events(winbind_event_context(), ret, &r_fds, &w_fds)) {
- /* We got a signal - continue. */
- TALLOC_FREE(frame);
- continue;
- }
-
- if (ret == 0) {
- DEBUG(11,("nothing is ready yet, continue\n"));
- TALLOC_FREE(frame);
- continue;
- }
-
- if (ret == -1 && errno == EINTR) {
- /* We got a signal - continue. */
- TALLOC_FREE(frame);
- continue;
- }
-
- if (ret == -1 && errno != EINTR) {
- DEBUG(0,("select error occured\n"));
- TALLOC_FREE(frame);
- perror("select");
- _exit(1);
- }
-
- /* fetch a request from the main daemon */
- status = child_read_request(&state);
-
- if (!NT_STATUS_IS_OK(status)) {
- /* we lost contact with our parent */
- _exit(0);
- }
-
- DEBUG(4,("child daemon request %d\n", (int)state.request->cmd));
-
- ZERO_STRUCTP(state.response);
- state.request->null_term = '\0';
- state.mem_ctx = frame;
- child_process_request(child, &state);
-
- DEBUG(4, ("Finished processing child request %d\n",
- (int)state.request->cmd));
-
- SAFE_FREE(state.request->extra_data.data);
+ TALLOC_FREE(frame);
+ }
+}
- iov[0].iov_base = (void *)state.response;
- iov[0].iov_len = sizeof(struct winbindd_response);
- iov_count = 1;
+void winbind_msg_ip_dropped_parent(struct messaging_context *msg_ctx,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id server_id,
+ DATA_BLOB *data)
+{
+ struct winbindd_child *child;
- if (state.response->length > sizeof(struct winbindd_response)) {
- iov[1].iov_base =
- (void *)state.response->extra_data.data;
- iov[1].iov_len = state.response->length-iov[0].iov_len;
- iov_count = 2;
- }
+ winbind_msg_ip_dropped(msg_ctx, private_data, msg_type,
+ server_id, data);
- DEBUG(10, ("Writing %d bytes to parent\n",
- (int)state.response->length));
- if (write_data_iov(state.sock, iov, iov_count) !=
- state.response->length) {
- DEBUG(0, ("Could not write result\n"));
- exit(1);
- }
- TALLOC_FREE(frame);
+ for (child = winbindd_children; child != NULL; child = child->next) {
+ messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
+ msg_type, data->data, data->length);
}
}
git.samba.org / samba.git / blobdiff