static NTSTATUS cli_pull_raw_error(const uint8_t *buf)
{
uint32_t flags2 = SVAL(buf, smb_flg2);
+ NTSTATUS status = NT_STATUS(IVAL(buf, smb_rcls));
+
+ if (NT_STATUS_IS_OK(status)) {
+ return NT_STATUS_OK;
+ }
if (flags2 & FLAGS2_32_BIT_ERROR_CODES) {
- return NT_STATUS(IVAL(buf, smb_rcls));
+ return status;
}
return NT_STATUS_DOS(CVAL(buf, smb_rcls), SVAL(buf,smb_err));
int chain_num;
int chain_length;
struct tevent_req **chained_requests;
+
+ bool one_way;
};
static uint16_t cli_alloc_mid(struct cli_state *cli)
while (true) {
int i;
- result = cli->smb1.mid++;
+ result = cli->conn.smb1.mid++;
if ((result == 0) || (result == 0xffff)) {
continue;
}
}
static void cli_smb_received(struct tevent_req *subreq);
+static NTSTATUS cli_state_dispatch_smb1(struct cli_state *cli,
+ TALLOC_CTX *frame,
+ uint8_t *inbuf);
static bool cli_state_receive_next(struct cli_state *cli)
{
req = cli->conn.pending[0];
state = tevent_req_data(req, struct cli_smb_state);
+ cli->conn.dispatch_incoming = cli_state_dispatch_smb1;
+
/*
* We're the first ones, add the read_smb request that waits for the
* answer from the server
req = cli->conn.pending[0];
state = tevent_req_data(req, struct cli_smb_state);
+ /*
+ * We're dead. No point waiting for trans2
+ * replies.
+ */
+ state->mid = 0;
+
cli_smb_req_unset_pending(req);
/*
{
struct cli_smb_state *state = tevent_req_data(
req, struct cli_smb_state);
+
+ if (state->mid != 0) {
+ return state->mid;
+ }
+
return SVAL(state->header, smb_mid);
}
if (cli->timeout) {
endtime = timeval_current_ofs_msec(cli->timeout);
if (!tevent_req_set_endtime(result, ev, endtime)) {
- tevent_req_oom(result);
+ return result;
}
}
+
+ switch (smb_command) {
+ case SMBtranss:
+ case SMBtranss2:
+ case SMBnttranss:
+ case SMBntcancel:
+ state->one_way = true;
+ break;
+ case SMBlockingX:
+ if ((wct == 8) &&
+ (CVAL(vwv+3, 0) == LOCKING_ANDX_OPLOCK_RELEASE)) {
+ state->one_way = true;
+ }
+ break;
+ }
+
return result;
}
NTSTATUS status;
if (!cli_state_is_connected(state->cli)) {
- return NT_STATUS_CONNECTION_INVALID;
+ return NT_STATUS_CONNECTION_DISCONNECTED;
}
if (iov[0].iov_len < smb_wct) {
return status;
}
- if (cli_encryption_on(state->cli)) {
+ if (cli_state_encryption_on(state->cli)) {
char *buf, *enc_buf;
buf = (char *)iov_concat(talloc_tos(), iov, iov_count);
struct cli_smb_state *state = tevent_req_data(
req, struct cli_smb_state);
+ if (!tevent_req_is_in_progress(req)) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
return cli_smb_req_iov_send(req, state, state->iov, state->iov_count);
}
if (req == NULL) {
return NULL;
}
-
+ if (!tevent_req_is_in_progress(req)) {
+ return tevent_req_post(req, ev);
+ }
status = cli_smb_req_send(req);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
return;
}
- switch (CVAL(state->header, smb_com)) {
- case SMBtranss:
- case SMBtranss2:
- case SMBnttranss:
- case SMBntcancel:
+ if (state->one_way) {
state->inbuf = NULL;
tevent_req_done(req);
return;
- case SMBlockingX:
- if ((CVAL(state->header, smb_wct) == 8) &&
- (CVAL(state->vwv+3, 0) == LOCKING_ANDX_OPLOCK_RELEASE)) {
- state->inbuf = NULL;
- tevent_req_done(req);
- return;
- }
}
if (!cli_smb_req_set_pending(req)) {
struct cli_state *cli = tevent_req_callback_data(
subreq, struct cli_state);
TALLOC_CTX *frame = talloc_stackframe();
- struct tevent_req *req;
- struct cli_smb_state *state;
NTSTATUS status;
uint8_t *inbuf;
ssize_t received;
- int num_pending;
- int i, err;
- uint16_t mid;
- bool oplock_break;
+ int err;
if (subreq != cli->conn.read_smb_req) {
DEBUG(1, ("Internal error: cli_smb_received called with "
"unexpected subreq\n"));
status = NT_STATUS_INTERNAL_ERROR;
cli_state_notify_pending(cli, status);
+ TALLOC_FREE(frame);
return;
}
return;
}
+ status = cli->conn.dispatch_incoming(cli, frame, inbuf);
+ TALLOC_FREE(frame);
+ if (NT_STATUS_IS_OK(status)) {
+ /*
+ * We should not do any more processing
+ * as the dispatch function called
+ * tevent_req_done().
+ */
+ return;
+ } else if (!NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
+ /*
+ * We got an error, so notify all pending requests
+ */
+ cli_state_notify_pending(cli, status);
+ return;
+ }
+
+ /*
+ * We got NT_STATUS_RETRY, so we may ask for a
+ * next incoming pdu.
+ */
+ if (!cli_state_receive_next(cli)) {
+ cli_state_notify_pending(cli, NT_STATUS_NO_MEMORY);
+ }
+}
+
+static NTSTATUS cli_state_dispatch_smb1(struct cli_state *cli,
+ TALLOC_CTX *frame,
+ uint8_t *inbuf)
+{
+ struct tevent_req *req;
+ struct cli_smb_state *state;
+ NTSTATUS status;
+ int num_pending;
+ int i;
+ uint16_t mid;
+ bool oplock_break;
+
if ((IVAL(inbuf, 4) != 0x424d53ff) /* 0xFF"SMB" */
&& (SVAL(inbuf, 4) != 0x45ff)) /* 0xFF"E" */ {
DEBUG(10, ("Got non-SMB PDU\n"));
- status = NT_STATUS_INVALID_NETWORK_RESPONSE;
- cli_state_notify_pending(cli, status);
- TALLOC_FREE(frame);
- return;
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
- if (cli_encryption_on(cli) && (CVAL(inbuf, 0) == 0)) {
+ if (cli_state_encryption_on(cli) && (CVAL(inbuf, 0) == 0)) {
uint16_t enc_ctx_num;
status = get_enc_ctx_num(inbuf, &enc_ctx_num);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("get_enc_ctx_num returned %s\n",
nt_errstr(status)));
- cli_state_notify_pending(cli, status);
- TALLOC_FREE(frame);
- return;
+ return status;
}
if (enc_ctx_num != cli->trans_enc_state->enc_ctx_num) {
DEBUG(10, ("wrong enc_ctx %d, expected %d\n",
enc_ctx_num,
cli->trans_enc_state->enc_ctx_num));
- status = NT_STATUS_INVALID_HANDLE;
- cli_state_notify_pending(cli, status);
- TALLOC_FREE(frame);
- return;
+ return NT_STATUS_INVALID_HANDLE;
}
status = common_decrypt_buffer(cli->trans_enc_state,
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("common_decrypt_buffer returned %s\n",
nt_errstr(status)));
- cli_state_notify_pending(cli, status);
- TALLOC_FREE(frame);
- return;
+ return status;
}
}
}
if (i == num_pending) {
/* Dump unexpected reply */
- goto done;
+ return NT_STATUS_RETRY;
}
oplock_break = false;
if (!oplock_break) {
/* Dump unexpected reply */
- goto done;
+ return NT_STATUS_RETRY;
}
}
if (!oplock_break /* oplock breaks are not signed */
&& !cli_check_sign_mac(cli, (char *)inbuf, state->seqnum+1)) {
DEBUG(10, ("cli_check_sign_mac failed\n"));
- status = NT_STATUS_ACCESS_DENIED;
- cli_state_notify_pending(cli, status);
- TALLOC_FREE(frame);
- return;
+ return NT_STATUS_ACCESS_DENIED;
}
- if (state->chained_requests == NULL) {
- state->inbuf = talloc_move(state, &inbuf);
- cli_smb_req_unset_pending(req);
- state->chain_num = 0;
- state->chain_length = 1;
-
- if (talloc_array_length(cli->conn.pending) == 0) {
- tevent_req_done(req);
- TALLOC_FREE(frame);
- return;
- }
-
- tevent_req_defer_callback(req, state->ev);
- tevent_req_done(req);
- } else {
+ if (state->chained_requests != NULL) {
struct tevent_req **chain = talloc_move(frame,
&state->chained_requests);
int num_chained = talloc_array_length(chain);
tevent_req_done(req);
}
+
+ return NT_STATUS_RETRY;
}
- done:
- TALLOC_FREE(frame);
- if (!cli_state_receive_next(cli)) {
- cli_state_notify_pending(cli, NT_STATUS_NO_MEMORY);
+ cli_smb_req_unset_pending(req);
+
+ state->inbuf = talloc_move(state, &inbuf);
+ state->chain_num = 0;
+ state->chain_length = 1;
+
+ if (talloc_array_length(cli->conn.pending) == 0) {
+ tevent_req_done(req);
+ return NT_STATUS_OK;
}
+
+ tevent_req_defer_callback(req, state->ev);
+ tevent_req_done(req);
+ return NT_STATUS_RETRY;
}
NTSTATUS cli_smb_recv(struct tevent_req *req,
iovlen = 0;
for (i=0; i<num_reqs; i++) {
+ if (!tevent_req_is_in_progress(reqs[i])) {
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
state = tevent_req_data(reqs[i], struct cli_smb_state);
iovlen += state->iov_count;
}
return ((tevent_queue_length(cli->conn.outgoing) != 0)
|| (talloc_array_length(cli->conn.pending) != 0));
}
-
-struct cli_smb_oplock_break_waiter_state {
- uint16_t fnum;
- uint8_t level;
-};
-
-static void cli_smb_oplock_break_waiter_done(struct tevent_req *subreq);
-
-struct tevent_req *cli_smb_oplock_break_waiter_send(TALLOC_CTX *mem_ctx,
- struct event_context *ev,
- struct cli_state *cli)
-{
- struct tevent_req *req, *subreq;
- struct cli_smb_oplock_break_waiter_state *state;
- struct cli_smb_state *smb_state;
-
- req = tevent_req_create(mem_ctx, &state,
- struct cli_smb_oplock_break_waiter_state);
- if (req == NULL) {
- return NULL;
- }
-
- /*
- * Create a fake SMB request that we will never send out. This is only
- * used to be set into the pending queue with the right mid.
- */
- subreq = cli_smb_req_create(mem_ctx, ev, cli, 0, 0, 0, NULL, 0, NULL);
- if (tevent_req_nomem(subreq, req)) {
- return tevent_req_post(req, ev);
- }
- smb_state = tevent_req_data(subreq, struct cli_smb_state);
- SSVAL(smb_state->header, smb_mid, 0xffff);
-
- if (!cli_smb_req_set_pending(subreq)) {
- tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
- return tevent_req_post(req, ev);
- }
- tevent_req_set_callback(subreq, cli_smb_oplock_break_waiter_done, req);
- return req;
-}
-
-static void cli_smb_oplock_break_waiter_done(struct tevent_req *subreq)
-{
- struct tevent_req *req = tevent_req_callback_data(
- subreq, struct tevent_req);
- struct cli_smb_oplock_break_waiter_state *state = tevent_req_data(
- req, struct cli_smb_oplock_break_waiter_state);
- uint8_t wct;
- uint16_t *vwv;
- uint32_t num_bytes;
- uint8_t *bytes;
- uint8_t *inbuf;
- NTSTATUS status;
-
- status = cli_smb_recv(subreq, state, &inbuf, 8, &wct, &vwv,
- &num_bytes, &bytes);
- TALLOC_FREE(subreq);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return;
- }
- state->fnum = SVAL(vwv+2, 0);
- state->level = CVAL(vwv+3, 1);
- tevent_req_done(req);
-}
-
-NTSTATUS cli_smb_oplock_break_waiter_recv(struct tevent_req *req,
- uint16_t *pfnum,
- uint8_t *plevel)
-{
- struct cli_smb_oplock_break_waiter_state *state = tevent_req_data(
- req, struct cli_smb_oplock_break_waiter_state);
- NTSTATUS status;
-
- if (tevent_req_is_nterror(req, &status)) {
- return status;
- }
- *pfnum = state->fnum;
- *plevel = state->level;
- return NT_STATUS_OK;
-}
-
-
-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;
-}
git.samba.org / rusty / samba.git / blobdiff