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-rw-r--r--source3/libsmb/smbsock_connect.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/source3/libsmb/smbsock_connect.c b/source3/libsmb/smbsock_connect.c
index 3b6ccb40f0..1c9db84738 100644
--- a/source3/libsmb/smbsock_connect.c
+++ b/source3/libsmb/smbsock_connect.c
@@ -18,11 +18,140 @@
*/
#include "includes.h"
+#include "../lib/async_req/async_sock.h"
#include "../lib/util/tevent_ntstatus.h"
+#include "../lib/util/tevent_unix.h"
#include "client.h"
#include "async_smb.h"
+#include "read_smb.h"
#include "libsmb/nmblib.h"
+struct cli_session_request_state {
+ struct tevent_context *ev;
+ int sock;
+ uint32 len_hdr;
+ struct iovec iov[3];
+ uint8_t nb_session_response;
+};
+
+static void cli_session_request_sent(struct tevent_req *subreq);
+static void cli_session_request_recvd(struct tevent_req *subreq);
+
+struct tevent_req *cli_session_request_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ int sock,
+ const struct nmb_name *called,
+ const struct nmb_name *calling)
+{
+ struct tevent_req *req, *subreq;
+ struct cli_session_request_state *state;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct cli_session_request_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->ev = ev;
+ state->sock = sock;
+
+ state->iov[1].iov_base = name_mangle(
+ state, called->name, called->name_type);
+ if (tevent_req_nomem(state->iov[1].iov_base, req)) {
+ return tevent_req_post(req, ev);
+ }
+ state->iov[1].iov_len = name_len(
+ (unsigned char *)state->iov[1].iov_base,
+ talloc_get_size(state->iov[1].iov_base));
+
+ state->iov[2].iov_base = name_mangle(
+ state, calling->name, calling->name_type);
+ if (tevent_req_nomem(state->iov[2].iov_base, req)) {
+ return tevent_req_post(req, ev);
+ }
+ state->iov[2].iov_len = name_len(
+ (unsigned char *)state->iov[2].iov_base,
+ talloc_get_size(state->iov[2].iov_base));
+
+ _smb_setlen(((char *)&state->len_hdr),
+ state->iov[1].iov_len + state->iov[2].iov_len);
+ SCVAL((char *)&state->len_hdr, 0, 0x81);
+
+ state->iov[0].iov_base = &state->len_hdr;
+ state->iov[0].iov_len = sizeof(state->len_hdr);
+
+ subreq = writev_send(state, ev, NULL, sock, true, state->iov, 3);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, cli_session_request_sent, req);
+ return req;
+}
+
+static void cli_session_request_sent(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_session_request_state *state = tevent_req_data(
+ req, struct cli_session_request_state);
+ ssize_t ret;
+ int err;
+
+ ret = writev_recv(subreq, &err);
+ TALLOC_FREE(subreq);
+ if (ret == -1) {
+ tevent_req_error(req, err);
+ return;
+ }
+ subreq = read_smb_send(state, state->ev, state->sock);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, cli_session_request_recvd, req);
+}
+
+static void cli_session_request_recvd(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_session_request_state *state = tevent_req_data(
+ req, struct cli_session_request_state);
+ uint8_t *buf;
+ ssize_t ret;
+ int err;
+
+ ret = read_smb_recv(subreq, talloc_tos(), &buf, &err);
+ TALLOC_FREE(subreq);
+
+ if (ret < 4) {
+ ret = -1;
+ err = EIO;
+ }
+ if (ret == -1) {
+ tevent_req_error(req, err);
+ return;
+ }
+ /*
+ * In case of an error there is more information in the data
+ * portion according to RFC1002. We're not subtle enough to
+ * respond to the different error conditions, so drop the
+ * error info here.
+ */
+ state->nb_session_response = CVAL(buf, 0);
+ tevent_req_done(req);
+}
+
+bool cli_session_request_recv(struct tevent_req *req, int *err, uint8_t *resp)
+{
+ struct cli_session_request_state *state = tevent_req_data(
+ req, struct cli_session_request_state);
+
+ if (tevent_req_is_unix_error(req, err)) {
+ return false;
+ }
+ *resp = state->nb_session_response;
+ return true;
+}
+
struct nb_connect_state {
struct tevent_context *ev;
const struct sockaddr_storage *addr;