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-rw-r--r--libcli/nbt/libnbt.h11
-rw-r--r--libcli/nbt/nameregister.c252
2 files changed, 158 insertions, 105 deletions
diff --git a/libcli/nbt/libnbt.h b/libcli/nbt/libnbt.h
index 91bef5858f..dfc3b92f96 100644
--- a/libcli/nbt/libnbt.h
+++ b/libcli/nbt/libnbt.h
@@ -343,13 +343,16 @@ struct composite_context;
struct composite_context *nbt_name_register_bcast_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register_bcast *io);
NTSTATUS nbt_name_register_bcast_recv(struct composite_context *c);
-struct composite_context *nbt_name_register_wins_send(struct nbt_name_socket *nbtsock,
- struct nbt_name_register_wins *io);
-NTSTATUS nbt_name_register_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
- struct nbt_name_register_wins *io);
struct tevent_context;
struct tevent_req;
+struct tevent_req *nbt_name_register_wins_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct nbt_name_socket *nbtsock,
+ struct nbt_name_register_wins *io);
+NTSTATUS nbt_name_register_wins_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ struct nbt_name_register_wins *io);
struct tevent_req *nbt_name_refresh_wins_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct nbt_name_socket *nbtsock,
diff --git a/libcli/nbt/nameregister.c b/libcli/nbt/nameregister.c
index 12a56b564c..4d307d9564 100644
--- a/libcli/nbt/nameregister.c
+++ b/libcli/nbt/nameregister.c
@@ -20,11 +20,13 @@
*/
#include "includes.h"
+#include <tevent.h>
#include "../libcli/nbt/libnbt.h"
#include "../libcli/nbt/nbt_proto.h"
#include "libcli/composite/composite.h"
#include "lib/socket/socket.h"
#include "librpc/gen_ndr/ndr_nbt.h"
+#include "../lib/util/tevent_ntstatus.h"
/*
send a nbt name registration request
@@ -282,152 +284,172 @@ NTSTATUS nbt_name_register_bcast(struct nbt_name_socket *nbtsock,
*/
struct nbt_name_register_wins_state {
struct nbt_name_socket *nbtsock;
- struct nbt_name_register *io;
- const char **wins_servers;
+ struct nbt_name_register io;
+ char **wins_servers;
uint16_t wins_port;
- const char **addresses;
- int address_idx;
- struct nbt_name_request *req;
+ char **addresses;
+ uint32_t address_idx;
};
-static void nbt_name_register_wins_handler(struct nbt_name_request *req);
+static void nbt_name_register_wins_handler(struct nbt_name_request *subreq);
/*
the async send call for a multi-server WINS register
*/
-_PUBLIC_ struct composite_context *nbt_name_register_wins_send(struct nbt_name_socket *nbtsock,
- struct nbt_name_register_wins *io)
+_PUBLIC_ struct tevent_req *nbt_name_register_wins_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct nbt_name_socket *nbtsock,
+ struct nbt_name_register_wins *io)
{
- struct composite_context *c;
+ struct tevent_req *req;
struct nbt_name_register_wins_state *state;
+ struct nbt_name_request *subreq;
- c = talloc_zero(nbtsock, struct composite_context);
- if (c == NULL) goto failed;
+ req = tevent_req_create(mem_ctx, &state,
+ struct nbt_name_register_wins_state);
+ if (req == NULL) {
+ return NULL;
+ }
- state = talloc(c, struct nbt_name_register_wins_state);
- if (state == NULL) goto failed;
+ if (io->in.wins_servers == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
- state->io = talloc(state, struct nbt_name_register);
- if (state->io == NULL) goto failed;
+ if (io->in.wins_servers[0] == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ if (io->in.addresses == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ if (io->in.addresses[0] == NULL) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
state->wins_port = io->in.wins_port;
- state->wins_servers = (const char **)str_list_copy(state, io->in.wins_servers);
- if (state->wins_servers == NULL ||
- state->wins_servers[0] == NULL) goto failed;
+ state->wins_servers = str_list_copy(state, io->in.wins_servers);
+ if (tevent_req_nomem(state->wins_servers, req)) {
+ return tevent_req_post(req, ev);
+ }
- state->addresses = (const char **)str_list_copy(state, io->in.addresses);
- if (state->addresses == NULL ||
- state->addresses[0] == NULL) goto failed;
+ state->addresses = str_list_copy(state, io->in.addresses);
+ if (tevent_req_nomem(state->addresses, req)) {
+ return tevent_req_post(req, ev);
+ }
- state->io->in.name = io->in.name;
- state->io->in.dest_addr = state->wins_servers[0];
- state->io->in.dest_port = state->wins_port;
- state->io->in.address = io->in.addresses[0];
- state->io->in.nb_flags = io->in.nb_flags;
- state->io->in.broadcast = false;
- state->io->in.register_demand = false;
- state->io->in.multi_homed = (io->in.nb_flags & NBT_NM_GROUP)?false:true;
- state->io->in.ttl = io->in.ttl;
- state->io->in.timeout = 3;
- state->io->in.retries = 2;
+ state->io.in.name = io->in.name;
+ state->io.in.dest_addr = state->wins_servers[0];
+ state->io.in.dest_port = state->wins_port;
+ state->io.in.address = io->in.addresses[0];
+ state->io.in.nb_flags = io->in.nb_flags;
+ state->io.in.broadcast = false;
+ state->io.in.register_demand = false;
+ state->io.in.multi_homed = (io->in.nb_flags & NBT_NM_GROUP)?false:true;
+ state->io.in.ttl = io->in.ttl;
+ state->io.in.timeout = 3;
+ state->io.in.retries = 2;
state->nbtsock = nbtsock;
state->address_idx = 0;
- state->req = nbt_name_register_send(nbtsock, state->io);
- if (state->req == NULL) goto failed;
-
- state->req->async.fn = nbt_name_register_wins_handler;
- state->req->async.private_data = c;
-
- c->private_data = state;
- c->state = COMPOSITE_STATE_IN_PROGRESS;
- c->event_ctx = nbtsock->event_ctx;
+ subreq = nbt_name_register_send(nbtsock, &state->io);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
- return c;
+ subreq->async.fn = nbt_name_register_wins_handler;
+ subreq->async.private_data = req;
-failed:
- talloc_free(c);
- return NULL;
+ return req;
}
/*
state handler for WINS multi-homed multi-server name register
*/
-static void nbt_name_register_wins_handler(struct nbt_name_request *req)
+static void nbt_name_register_wins_handler(struct nbt_name_request *subreq)
{
- struct composite_context *c = talloc_get_type(req->async.private_data,
- struct composite_context);
- struct nbt_name_register_wins_state *state = talloc_get_type(c->private_data,
- struct nbt_name_register_wins_state);
+ struct tevent_req *req =
+ talloc_get_type_abort(subreq->async.private_data,
+ struct tevent_req);
+ struct nbt_name_register_wins_state *state =
+ tevent_req_data(req,
+ struct nbt_name_register_wins_state);
NTSTATUS status;
- status = nbt_name_register_recv(state->req, state, state->io);
+ status = nbt_name_register_recv(subreq, state, &state->io);
if (NT_STATUS_EQUAL(status, NT_STATUS_IO_TIMEOUT)) {
/* the register timed out - try the next WINS server */
state->wins_servers++;
- state->address_idx = 0;
if (state->wins_servers[0] == NULL) {
- c->state = COMPOSITE_STATE_ERROR;
- c->status = status;
- goto done;
- }
- state->io->in.dest_addr = state->wins_servers[0];
- state->io->in.dest_port = state->wins_port;
- state->io->in.address = state->addresses[0];
- state->req = nbt_name_register_send(state->nbtsock, state->io);
- if (state->req == NULL) {
- c->state = COMPOSITE_STATE_ERROR;
- c->status = NT_STATUS_NO_MEMORY;
- } else {
- state->req->async.fn = nbt_name_register_wins_handler;
- state->req->async.private_data = c;
+ tevent_req_nterror(req, status);
+ return;
}
- } else if (!NT_STATUS_IS_OK(status)) {
- c->state = COMPOSITE_STATE_ERROR;
- c->status = status;
- } else {
- if (state->io->out.rcode == 0 &&
- state->addresses[state->address_idx+1] != NULL) {
- /* register our next address */
- state->io->in.address = state->addresses[++(state->address_idx)];
- state->req = nbt_name_register_send(state->nbtsock, state->io);
- if (state->req == NULL) {
- c->state = COMPOSITE_STATE_ERROR;
- c->status = NT_STATUS_NO_MEMORY;
- } else {
- state->req->async.fn = nbt_name_register_wins_handler;
- state->req->async.private_data = c;
- }
- } else {
- c->state = COMPOSITE_STATE_DONE;
- c->status = NT_STATUS_OK;
+
+ state->address_idx = 0;
+ state->io.in.dest_addr = state->wins_servers[0];
+ state->io.in.dest_port = state->wins_port;
+ state->io.in.address = state->addresses[0];
+
+ subreq = nbt_name_register_send(state->nbtsock, &state->io);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
}
+
+ subreq->async.fn = nbt_name_register_wins_handler;
+ subreq->async.private_data = req;
+ return;
}
-done:
- if (c->state >= COMPOSITE_STATE_DONE &&
- c->async.fn) {
- c->async.fn(c);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ if (state->io.out.rcode == 0 &&
+ state->addresses[state->address_idx+1] != NULL) {
+ /* register our next address */
+ state->io.in.address = state->addresses[++(state->address_idx)];
+
+ subreq = nbt_name_register_send(state->nbtsock, &state->io);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+
+ subreq->async.fn = nbt_name_register_wins_handler;
+ subreq->async.private_data = req;
+ return;
}
+
+ tevent_req_done(req);
}
/*
multi-homed WINS name register - recv side
*/
-_PUBLIC_ NTSTATUS nbt_name_register_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
- struct nbt_name_register_wins *io)
+_PUBLIC_ NTSTATUS nbt_name_register_wins_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ struct nbt_name_register_wins *io)
{
+ struct nbt_name_register_wins_state *state =
+ tevent_req_data(req,
+ struct nbt_name_register_wins_state);
NTSTATUS status;
- status = composite_wait(c);
- if (NT_STATUS_IS_OK(status)) {
- struct nbt_name_register_wins_state *state =
- talloc_get_type(c->private_data, struct nbt_name_register_wins_state);
- io->out.wins_server = talloc_steal(mem_ctx, state->wins_servers[0]);
- io->out.rcode = state->io->out.rcode;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
}
- talloc_free(c);
- return status;
+
+ io->out.wins_server = talloc_move(mem_ctx, &state->wins_servers[0]);
+ io->out.rcode = state->io.out.rcode;
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
}
/*
@@ -437,6 +459,34 @@ _PUBLIC_ NTSTATUS nbt_name_register_wins(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx,
struct nbt_name_register_wins *io)
{
- struct composite_context *c = nbt_name_register_wins_send(nbtsock, io);
- return nbt_name_register_wins_recv(c, mem_ctx, io);
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct tevent_context *ev;
+ struct tevent_req *subreq;
+ NTSTATUS status;
+
+ /*
+ * TODO: create a temporary event context
+ */
+ ev = nbtsock->event_ctx;
+
+ subreq = nbt_name_register_wins_send(frame, ev, nbtsock, io);
+ if (subreq == NULL) {
+ talloc_free(frame);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!tevent_req_poll(subreq, ev)) {
+ status = map_nt_error_from_unix(errno);
+ talloc_free(frame);
+ return status;
+ }
+
+ status = nbt_name_register_wins_recv(subreq, mem_ctx, io);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(frame);
+ return status;
+ }
+
+ TALLOC_FREE(frame);
+ return NT_STATUS_OK;
}
generated by cgit (git 2.34.1) at 2024-11-18 10:17:18 +0000