*/
#include "includes.h"
+#include "libcli/composite/composite.h"
#include "librpc/gen_ndr/ndr_epmapper.h"
#include "librpc/gen_ndr/ndr_dcerpc.h"
#include "librpc/gen_ndr/ndr_misc.h"
return NT_STATUS_OK;
}
+
+struct epm_map_binding_state {
+ struct dcerpc_binding *binding;
+ const struct dcerpc_interface_table *table;
+ struct dcerpc_pipe *pipe;
+ struct epm_twr_t twr;
+ struct epm_twr_t *twr_r;
+ struct epm_Map r;
+};
+
+
+static void continue_epm_recv_binding(struct composite_context *ctx);
+static void continue_epm_map(struct rpc_request *req);
+
+
+static void continue_epm_recv_binding(struct composite_context *ctx)
+{
+ struct policy_handle handle;
+ struct GUID guid;
+ struct rpc_request *map_req;
+
+ struct composite_context *c = talloc_get_type(ctx->async.private_data,
+ struct composite_context);
+ struct epm_map_binding_state *s = talloc_get_type(c->private_data,
+ struct epm_map_binding_state);
+
+ c->status = dcerpc_pipe_connect_b_recv(ctx, c, &s->pipe);
+ if (!composite_is_ok(c)) return;
+
+ ZERO_STRUCT(handle);
+ ZERO_STRUCT(guid);
+
+ s->binding->object = s->table->uuid;
+ s->binding->object_version = s->table->if_version;
+
+ c->status = dcerpc_binding_build_tower(s->pipe, s->binding, &s->twr.tower);
+ if (!composite_is_ok(c)) return;
+
+ /* with some nice pretty paper around it of course */
+ s->r.in.object = &guid;
+ s->r.in.map_tower = &s->twr;
+ s->r.in.entry_handle = &handle;
+ s->r.in.max_towers = 1;
+ s->r.out.entry_handle = &handle;
+
+ map_req = dcerpc_epm_Map_send(s->pipe, c, &s->r);
+ if (composite_nomem(map_req, c)) return;
+
+ composite_continue_rpc(c, map_req, continue_epm_map, c);
+}
+
+
+static void continue_epm_map(struct rpc_request *req)
+{
+ struct composite_context *c = talloc_get_type(req->async.private,
+ struct composite_context);
+ struct epm_map_binding_state *s = talloc_get_type(c->private_data,
+ struct epm_map_binding_state);
+
+ c->status = dcerpc_ndr_request_recv(req);
+ if (!composite_is_ok(c)) return;
+
+ if (s->r.out.result != 0 || s->r.out.num_towers != 1) {
+ composite_error(c, NT_STATUS_PORT_UNREACHABLE);
+ return;
+ }
+
+ s->twr_r = s->r.out.towers[0].twr;
+ if (s->twr_r == NULL) {
+ composite_error(c, NT_STATUS_PORT_UNREACHABLE);
+ return;
+ }
+
+ if (s->twr_r->tower.num_floors != s->twr.tower.num_floors ||
+ s->twr_r->tower.floors[3].lhs.protocol != s->twr.tower.floors[3].lhs.protocol) {
+ composite_error(c, NT_STATUS_PORT_UNREACHABLE);
+ return;
+ }
+
+ s->binding->endpoint = talloc_reference(s->binding,
+ dcerpc_floor_get_rhs_data(c, &s->twr_r->tower.floors[3]));
+ composite_done(c);
+}
+
+
+struct composite_context *dcerpc_epm_map_binding_send(TALLOC_CTX *mem_ctx,
+ struct dcerpc_binding *binding,
+ const struct dcerpc_interface_table *table,
+ struct event_context *ev)
+{
+ struct composite_context *c;
+ struct epm_map_binding_state *s;
+ struct composite_context *pipe_connect_req;
+
+ NTSTATUS status;
+ struct dcerpc_binding *epmapper_binding;
+ int i;
+
+ /* composite context allocation and setup */
+ c = talloc_zero(mem_ctx, struct composite_context);
+ if (c == NULL) return NULL;
+
+ s = talloc_zero(c, struct epm_map_binding_state);
+ if (composite_nomem(s, c)) return c;
+
+ c->state = COMPOSITE_STATE_IN_PROGRESS;
+ c->private_data = s;
+ c->event_ctx = ev;
+
+ s->binding = binding;
+ s->table = table;
+
+ struct cli_credentials *anon_creds = cli_credentials_init(mem_ctx);
+ cli_credentials_set_conf(anon_creds);
+ cli_credentials_set_anonymous(anon_creds);
+
+ /* First, check if there is a default endpoint specified in the IDL */
+
+ if (table) {
+ struct dcerpc_binding *default_binding;
+
+ /* Find one of the default pipes for this interface */
+ for (i = 0; i < table->endpoints->count; i++) {
+ status = dcerpc_parse_binding(mem_ctx, table->endpoints->names[i], &default_binding);
+
+ if (NT_STATUS_IS_OK(status)) {
+ if (default_binding->transport == binding->transport && default_binding->endpoint) {
+ binding->endpoint = talloc_reference(binding, default_binding->endpoint);
+ talloc_free(default_binding);
+
+ composite_done(c);
+ return c;
+
+ } else {
+ talloc_free(default_binding);
+ }
+ }
+ }
+ }
+
+ epmapper_binding = talloc_zero(c, struct dcerpc_binding);
+ if (composite_nomem(epmapper_binding, c)) return c;
+
+ epmapper_binding->transport = binding->transport;
+ epmapper_binding->host = talloc_reference(epmapper_binding, binding->host);
+ epmapper_binding->options = NULL;
+ epmapper_binding->flags = 0;
+ epmapper_binding->endpoint = NULL;
+
+ pipe_connect_req = dcerpc_pipe_connect_b_send(c, &s->pipe, epmapper_binding, &dcerpc_table_epmapper,
+ anon_creds, ev);
+ if (composite_nomem(pipe_connect_req, c)) return c;
+
+ composite_continue(c, pipe_connect_req, continue_epm_recv_binding, c);
+ return c;
+}
+
+
+NTSTATUS dcerpc_epm_map_binding_recv(struct composite_context *c)
+{
+ NTSTATUS status = composite_wait(c);
+
+ talloc_free(c);
+ return status;
+}
+
+
+
NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding,
const struct dcerpc_interface_table *table, struct event_context *ev)
{
struct dcerpc_pipe *p;
NTSTATUS status;
- struct epm_Map r;
struct policy_handle handle;
struct GUID guid;
+ struct epm_Map r;
struct epm_twr_t twr, *twr_r;
struct dcerpc_binding *epmapper_binding;
int i;
}
+struct pipe_auth_state {
+ struct dcerpc_pipe *pipe;
+ struct dcerpc_binding *binding;
+ const struct dcerpc_interface_table *table;
+ struct cli_credentials *credentials;
+};
+
+
+static void continue_auth_schannel(struct composite_context *ctx);
+static void continue_auth(struct composite_context *ctx);
+static void continue_auth_none(struct composite_context *ctx);
+
+
+static void continue_auth_schannel(struct composite_context *ctx)
+{
+ struct composite_context *c = talloc_get_type(ctx->async.private_data,
+ struct composite_context);
+
+ c->status = dcerpc_bind_auth_schannel_recv(ctx);
+ if (!composite_is_ok(c)) return;
+
+ composite_done(c);
+}
+
+
+static void continue_auth(struct composite_context *ctx)
+{
+ struct composite_context *c = talloc_get_type(ctx->async.private_data,
+ struct composite_context);
+
+ c->status = dcerpc_bind_auth_recv(ctx);
+ if (!composite_is_ok(c)) return;
+
+ composite_done(c);
+}
+
+
+static void continue_auth_none(struct composite_context *ctx)
+{
+ struct composite_context *c = talloc_get_type(ctx->async.private_data,
+ struct composite_context);
+
+ c->status = dcerpc_bind_auth_none_recv(ctx);
+ if (!composite_is_ok(c)) return;
+
+ composite_done(c);
+}
+
+
+struct composite_context *dcerpc_pipe_auth_send(struct dcerpc_pipe *p,
+ struct dcerpc_binding *binding,
+ const struct dcerpc_interface_table *table,
+ struct cli_credentials *credentials)
+{
+ struct composite_context *c;
+ struct pipe_auth_state *s;
+ struct composite_context *auth_schannel_req;
+ struct composite_context *auth_req;
+ struct composite_context *auth_none_req;
+
+ /* composite context allocation and setup */
+ c = talloc_zero(NULL, struct composite_context);
+ if (c == NULL) return NULL;
+
+ s = talloc_zero(c, struct pipe_auth_state);
+ if (composite_nomem(s, c)) return c;
+
+ c->state = COMPOSITE_STATE_IN_PROGRESS;
+ c->private_data = s;
+ c->event_ctx = p->conn->event_ctx;
+
+ s->binding = binding;
+ s->table = table;
+ s->credentials = credentials;
+ s->pipe = p;
+
+ s->pipe->conn->flags = binding->flags;
+
+ /* remember the binding string for possible secondary connections */
+ s->pipe->conn->binding_string = dcerpc_binding_string(p, binding);
+
+ if (!cli_credentials_is_anonymous(s->credentials) &&
+ (binding->flags & DCERPC_SCHANNEL) &&
+ !cli_credentials_get_netlogon_creds(s->credentials)) {
+
+ /* If we don't already have netlogon credentials for
+ * the schannel bind, then we have to get these
+ * first */
+ auth_schannel_req = dcerpc_bind_auth_schannel_send(c, s->pipe, s->table,
+ s->credentials,
+ dcerpc_auth_level(s->pipe->conn));
+ if (composite_nomem(auth_schannel_req, c)) return c;
+
+ composite_continue(c, auth_schannel_req, continue_auth_schannel, c);
+
+ } else if (!cli_credentials_is_anonymous(s->credentials) &&
+ !(s->pipe->conn->transport.transport == NCACN_NP &&
+ !(s->binding->flags & DCERPC_SIGN) &&
+ !(s->binding->flags & DCERPC_SEAL))) {
+
+ /* Perform an authenticated DCE-RPC bind, except where
+ * we ask for a connection on NCACN_NP, and that
+ * connection is not signed or sealed. For that case
+ * we rely on the already authenticated CIFS connection
+ */
+
+ uint8_t auth_type;
+
+ if ((s->pipe->conn->flags & (DCERPC_SIGN|DCERPC_SEAL)) == 0) {
+ /*
+ we are doing an authenticated connection,
+ but not using sign or seal. We must force
+ the CONNECT dcerpc auth type as a NONE auth
+ type doesn't allow authentication
+ information to be passed.
+ */
+ s->pipe->conn->flags |= DCERPC_CONNECT;
+ }
+
+ if (s->binding->flags & DCERPC_AUTH_SPNEGO) {
+ auth_type = DCERPC_AUTH_TYPE_SPNEGO;
+
+ } else if (s->binding->flags & DCERPC_AUTH_KRB5) {
+ auth_type = DCERPC_AUTH_TYPE_KRB5;
+
+ } else if (s->binding->flags & DCERPC_SCHANNEL) {
+ auth_type = DCERPC_AUTH_TYPE_SCHANNEL;
+
+ } else {
+ auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
+ }
+
+ auth_req = dcerpc_bind_auth_send(c, s->pipe, s->table,
+ s->credentials, auth_type,
+ dcerpc_auth_level(s->pipe->conn),
+ s->table->authservices->names[0]);
+ if (composite_nomem(auth_req, c)) return c;
+
+ composite_continue(c, auth_req, continue_auth, c);
+
+ } else {
+ auth_none_req = dcerpc_bind_auth_none_send(c, s->pipe, s->table);
+ if (composite_nomem(auth_none_req, c)) return c;
+
+ composite_continue(c, auth_none_req, continue_auth_none, c);
+ }
+
+ return c;
+}
+
+
+NTSTATUS dcerpc_pipe_auth_recv(struct composite_context *c)
+{
+ NTSTATUS status;
+
+ struct pipe_auth_state *s = talloc_get_type(c->private_data,
+ struct pipe_auth_state);
+ status = composite_wait(c);
+ if (!NT_STATUS_IS_OK(status)) {
+ char *uuid_str = GUID_string(s->pipe, &s->table->uuid);
+ DEBUG(0, ("Failed to bind to uuid %s - %s\n", uuid_str, nt_errstr(status)));
+ talloc_free(uuid_str);
+ }
+
+ talloc_free(c);
+ return status;
+}
+
+
/*
perform an authenticated bind if needed
*/
}
-/* open a rpc connection to a rpc pipe on SMB using the binding
- structure to determine the endpoint and options */
-static NTSTATUS dcerpc_pipe_connect_ncacn_np(TALLOC_CTX *tmp_ctx,
- struct dcerpc_pipe_connect *io)
-{
- if (io->binding->flags & DCERPC_SMB2) {
- return dcerpc_pipe_connect_ncacn_np_smb2(tmp_ctx, io);
-
- }
- return dcerpc_pipe_connect_ncacn_np_smb(tmp_ctx, io);
-}
-
-
-/* open a rpc connection to a rpc pipe, using the specified
- binding structure to determine the endpoint and options */
-NTSTATUS dcerpc_pipe_connect_b(TALLOC_CTX *parent_ctx,
- struct dcerpc_pipe **pp,
- struct dcerpc_binding *binding,
- const struct dcerpc_interface_table *table,
- struct cli_credentials *credentials,
- struct event_context *ev)
-{
- NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
- struct dcerpc_pipe *p;
- struct dcerpc_pipe_connect pc;
-
- TALLOC_CTX *tmp_ctx;
-
- (*pp) = NULL;
-
- p = dcerpc_pipe_init(parent_ctx, ev);
- if (p == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
- tmp_ctx = talloc_named(p, 0, "dcerpc_pipe_connect_b tmp_ctx");
-
- switch (binding->transport) {
- case NCACN_NP:
- case NCACN_IP_TCP:
- case NCALRPC:
- if (!binding->endpoint) {
- status = dcerpc_epm_map_binding(tmp_ctx, binding, table,
- p->conn->event_ctx);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to map DCERPC endpoint for '%s' - %s\n",
- GUID_string(tmp_ctx, &table->uuid), nt_errstr(status)));
- talloc_free(tmp_ctx);
- return status;
- }
- DEBUG(2,("Mapped to DCERPC endpoint %s\n", binding->endpoint));
- }
- break;
-
- /* Fall through to next switch statement */
-
- default:
- break;
- }
-
- pc.pipe = p;
- pc.binding = binding;
- pc.interface = table;
- pc.creds = credentials;
-
- switch (binding->transport) {
- case NCACN_NP:
- status = dcerpc_pipe_connect_ncacn_np(tmp_ctx, &pc);
- break;
-
- case NCACN_IP_TCP:
- status = dcerpc_pipe_connect_ncacn_ip_tcp(tmp_ctx, &pc);
- break;
-
- case NCACN_UNIX_STREAM:
- status = dcerpc_pipe_connect_ncacn_unix_stream(tmp_ctx, &pc);
- break;
-
- case NCALRPC:
- status = dcerpc_pipe_connect_ncalrpc(tmp_ctx, &pc);
- break;
-
- default:
- return NT_STATUS_NOT_SUPPORTED;
- }
-
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(p);
- return status;
- }
-
- p->binding = binding;
- if (!talloc_reference(p, binding)) {
- return NT_STATUS_NO_MEMORY;
- }
-
- status = dcerpc_pipe_auth(p, binding, table, credentials);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(p);
- return status;
- }
- *pp = p;
- talloc_free(tmp_ctx);
-
- return status;
-}
-
-
-/* open a rpc connection to a rpc pipe, using the specified string
- binding to determine the endpoint and options */
-NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx,
- struct dcerpc_pipe **pp,
- const char *binding,
- const struct dcerpc_interface_table *table,
- struct cli_credentials *credentials,
- struct event_context *ev)
-{
- struct dcerpc_binding *b;
- NTSTATUS status;
- TALLOC_CTX *tmp_ctx;
-
- tmp_ctx = talloc_named(parent_ctx, 0, "dcerpc_pipe_connect tmp_ctx");
- if (!tmp_ctx) {
- return NT_STATUS_NO_MEMORY;
- }
-
- status = dcerpc_parse_binding(tmp_ctx, binding, &b);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to parse dcerpc binding '%s'\n", binding));
- talloc_free(tmp_ctx);
- return status;
- }
-
- DEBUG(3,("Using binding %s\n", dcerpc_binding_string(tmp_ctx, b)));
-
- status = dcerpc_pipe_connect_b(tmp_ctx, pp, b, table, credentials, ev);
-
- if (NT_STATUS_IS_OK(status)) {
- *pp = talloc_steal(parent_ctx, *pp);
- }
- talloc_free(tmp_ctx);
-
- return status;
-}
-
-
-/*
- create a secondary dcerpc connection from a primary connection
-
- if the primary is a SMB connection then the secondary connection
- will be on the same SMB connection, but use a new fnum
-*/
-NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe **p2,
- struct dcerpc_binding *b)
-
-
-{
- struct smbcli_tree *tree;
- NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
-
- (*p2) = dcerpc_pipe_init(p, p->conn->event_ctx);
- if (*p2 == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- switch (p->conn->transport.transport) {
- case NCACN_NP:
- tree = dcerpc_smb_tree(p->conn);
- if (!tree) {
- return NT_STATUS_INVALID_PARAMETER;
- }
- status = dcerpc_pipe_open_smb((*p2)->conn, tree, b->endpoint);
- break;
-
- case NCACN_IP_TCP:
- status = dcerpc_pipe_open_tcp((*p2)->conn, b->host, atoi(b->endpoint));
- break;
-
- case NCALRPC:
- status = dcerpc_pipe_open_pipe((*p2)->conn, b->endpoint);
- break;
-
- default:
- return NT_STATUS_NOT_SUPPORTED;
- }
-
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(*p2);
- return status;
- }
-
- (*p2)->conn->flags = p->conn->flags;
- (*p2)->binding = b;
- if (!talloc_reference(*p2, b)) {
- return NT_STATUS_NO_MEMORY;
- }
-
- return NT_STATUS_OK;
-}
-
NTSTATUS dcerpc_generic_session_key(struct dcerpc_connection *c,
DATA_BLOB *session_key)
{
git.samba.org / jra / samba / .git / blobdiff