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Diffstat (limited to 'source4/libcli/smb2/session.c')
-rw-r--r--source4/libcli/smb2/session.c170
1 files changed, 107 insertions, 63 deletions
diff --git a/source4/libcli/smb2/session.c b/source4/libcli/smb2/session.c
index 121323e1dc..0f285ecd87 100644
--- a/source4/libcli/smb2/session.c
+++ b/source4/libcli/smb2/session.c
@@ -20,10 +20,11 @@
*/
#include "includes.h"
+#include <tevent.h>
+#include "lib/util/tevent_ntstatus.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/smb2/smb2.h"
#include "libcli/smb2/smb2_calls.h"
-#include "libcli/composite/composite.h"
#include "auth/gensec/gensec.h"
#include <unistd.h>
@@ -136,8 +137,7 @@ NTSTATUS smb2_session_setup(struct smb2_session *session,
return smb2_session_setup_recv(req, mem_ctx, io);
}
-
-struct smb2_session_state {
+struct smb2_session_setup_spnego_state {
struct smb2_session_setup io;
struct smb2_request *req;
NTSTATUS gensec_status;
@@ -148,19 +148,22 @@ static void smb2_session_setup_spnego_handler(struct smb2_request *req);
/*
a composite function that does a full SPNEGO session setup
*/
-struct composite_context *smb2_session_setup_spnego_send(struct smb2_session *session,
- struct cli_credentials *credentials)
+struct tevent_req *smb2_session_setup_spnego_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smb2_session *session,
+ struct cli_credentials *credentials)
{
- struct composite_context *c;
- struct smb2_session_state *state;
+ struct tevent_req *req;
+ struct smb2_session_setup_spnego_state *state;
const char *chosen_oid;
+ struct smb2_request *subreq;
+ NTSTATUS status;
- c = composite_create(session, session->transport->socket->event.ctx);
- if (c == NULL) return NULL;
-
- state = talloc(c, struct smb2_session_state);
- if (composite_nomem(state, c)) return c;
- c->private_data = state;
+ req = tevent_req_create(mem_ctx, &state,
+ struct smb2_session_setup_spnego_state);
+ if (req == NULL) {
+ return NULL;
+ }
ZERO_STRUCT(state->io);
state->io.in.vc_number = 0;
@@ -172,15 +175,21 @@ struct composite_context *smb2_session_setup_spnego_send(struct smb2_session *se
state->io.in.channel = 0;
state->io.in.previous_sessionid = 0;
- c->status = gensec_set_credentials(session->gensec, credentials);
- if (!composite_is_ok(c)) return c;
+ status = gensec_set_credentials(session->gensec, credentials);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
- c->status = gensec_set_target_hostname(session->gensec,
- session->transport->socket->hostname);
- if (!composite_is_ok(c)) return c;
+ status = gensec_set_target_hostname(session->gensec,
+ session->transport->socket->hostname);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
- c->status = gensec_set_target_service(session->gensec, "cifs");
- if (!composite_is_ok(c)) return c;
+ status = gensec_set_target_service(session->gensec, "cifs");
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
if (session->transport->negotiate.secblob.length > 0) {
chosen_oid = GENSEC_OID_SPNEGO;
@@ -188,66 +197,73 @@ struct composite_context *smb2_session_setup_spnego_send(struct smb2_session *se
chosen_oid = GENSEC_OID_NTLMSSP;
}
- c->status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
- if (!composite_is_ok(c)) return c;
+ status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
+
+ status = gensec_update(session->gensec, state,
+ session->transport->negotiate.secblob,
+ &state->io.in.secblob);
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ state->gensec_status = status;
- c->status = gensec_update(session->gensec, c,
- session->transport->negotiate.secblob,
- &state->io.in.secblob);
- if (!NT_STATUS_EQUAL(c->status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- composite_error(c, c->status);
- return c;
+ subreq = smb2_session_setup_send(session, &state->io);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
}
- state->gensec_status = c->status;
+ subreq->async.fn = smb2_session_setup_spnego_handler;
+ subreq->async.private_data = req;
- state->req = smb2_session_setup_send(session, &state->io);
- composite_continue_smb2(c, state->req, smb2_session_setup_spnego_handler, c);
- return c;
+ return req;
}
/*
handle continuations of the spnego session setup
*/
-static void smb2_session_setup_spnego_handler(struct smb2_request *req)
+static void smb2_session_setup_spnego_handler(struct smb2_request *subreq)
{
- struct composite_context *c = talloc_get_type(req->async.private_data,
- struct composite_context);
- struct smb2_session_state *state = talloc_get_type(c->private_data,
- struct smb2_session_state);
- struct smb2_session *session = req->session;
+ struct tevent_req *req =
+ talloc_get_type_abort(subreq->async.private_data,
+ struct tevent_req);
+ struct smb2_session_setup_spnego_state *state =
+ tevent_req_data(req,
+ struct smb2_session_setup_spnego_state);
+ struct smb2_session *session = subreq->session;
NTSTATUS session_key_err;
DATA_BLOB session_key;
NTSTATUS peer_status;
+ NTSTATUS status;
- c->status = smb2_session_setup_recv(req, c, &state->io);
- peer_status = c->status;
-
+ status = smb2_session_setup_recv(subreq, state, &state->io);
+ peer_status = status;
if (NT_STATUS_EQUAL(peer_status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
(NT_STATUS_IS_OK(peer_status) &&
NT_STATUS_EQUAL(state->gensec_status, NT_STATUS_MORE_PROCESSING_REQUIRED))) {
- c->status = gensec_update(session->gensec, c,
- state->io.out.secblob,
- &state->io.in.secblob);
- state->gensec_status = c->status;
-
+ status = gensec_update(session->gensec, state,
+ state->io.out.secblob,
+ &state->io.in.secblob);
+ state->gensec_status = status;
session->uid = state->io.out.uid;
}
- if (!NT_STATUS_IS_OK(c->status) &&
- !NT_STATUS_EQUAL(c->status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- composite_error(c, c->status);
+ if (!NT_STATUS_IS_OK(status) &&
+ !NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ tevent_req_nterror(req, status);
return;
}
if (NT_STATUS_EQUAL(peer_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- state->req = smb2_session_setup_send(session, &state->io);
- if (state->req == NULL) {
- composite_error(c, NT_STATUS_NO_MEMORY);
+ subreq = smb2_session_setup_send(session, &state->io);
+ if (tevent_req_nomem(subreq, req)) {
return;
}
- state->req->async.fn = smb2_session_setup_spnego_handler;
- state->req->async.private_data = c;
+ subreq->async.fn = smb2_session_setup_spnego_handler;
+ subreq->async.private_data = req;
return;
}
@@ -260,24 +276,21 @@ static void smb2_session_setup_spnego_handler(struct smb2_request *req)
if (session->session_key.length == 0) {
DEBUG(0,("Wrong session key length %u for SMB2 signing\n",
(unsigned)session->session_key.length));
- composite_error(c, NT_STATUS_ACCESS_DENIED);
+ tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
return;
}
session->signing_active = true;
}
- composite_done(c);
+ tevent_req_done(req);
}
/*
receive a composite session setup reply
*/
-NTSTATUS smb2_session_setup_spnego_recv(struct composite_context *c)
+NTSTATUS smb2_session_setup_spnego_recv(struct tevent_req *req)
{
- NTSTATUS status;
- status = composite_wait(c);
- talloc_free(c);
- return status;
+ return tevent_req_simple_recv_ntstatus(req);
}
/*
@@ -286,6 +299,37 @@ NTSTATUS smb2_session_setup_spnego_recv(struct composite_context *c)
NTSTATUS smb2_session_setup_spnego(struct smb2_session *session,
struct cli_credentials *credentials)
{
- struct composite_context *c = smb2_session_setup_spnego_send(session, credentials);
- return smb2_session_setup_spnego_recv(c);
+ struct tevent_req *subreq;
+ NTSTATUS status;
+ bool ok;
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct tevent_context *ev = session->transport->socket->event.ctx;
+
+ if (frame == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ subreq = smb2_session_setup_spnego_send(frame, ev,
+ session, credentials);
+ if (subreq == NULL) {
+ TALLOC_FREE(frame);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ok = tevent_req_poll(subreq, ev);
+ if (!ok) {
+ status = map_nt_error_from_unix(errno);
+ TALLOC_FREE(frame);
+ return status;
+ }
+
+ status = smb2_session_setup_spnego_recv(subreq);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(frame);
+ return status;
+ }
+
+ TALLOC_FREE(frame);
+ return NT_STATUS_OK;
}