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s3:rpc_client/rpc_transport_tstream.c: add some logic to handle cli_np tstreams

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metze
This commit is contained in:
Stefan Metzmacher 2010-12-14 18:20:25 +01:00
parent 9a14dace22
commit 122dc1e213
1 changed files with 197 additions and 2 deletions
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199
source3/rpc_client/rpc_transport_tstream.c
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@ -19,6 +19,7 @@
#include "includes.h"
#include "lib/tsocket/tsocket.h"
#include "libsmb/cli_np_tstream.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_CLI
@ -39,11 +40,21 @@ static bool rpc_tstream_is_connected(void *priv)
{
struct rpc_tstream_state *transp =
talloc_get_type_abort(priv, struct rpc_tstream_state);
ssize_t ret;
if (!transp->stream) {
return false;
}
if (!tstream_is_cli_np(transp->stream)) {
return true;
}
ret = tstream_pending_bytes(transp->stream);
if (ret == -1) {
return false;
}
return true;
}
@ -59,6 +70,11 @@ static unsigned int rpc_tstream_set_timeout(void *priv, unsigned int timeout)
return 0;
}
if (tstream_is_cli_np(transp->stream)) {
transp->timeout = timeout;
return tstream_cli_np_set_timeout(transp->stream, timeout);
}
orig_timeout = transp->timeout;
transp->timeout = timeout;
@ -310,6 +326,180 @@ static NTSTATUS rpc_tstream_write_recv(struct tevent_req *req, ssize_t *sent)
return NT_STATUS_OK;
}
struct rpc_tstream_trans_state {
struct tevent_context *ev;
struct rpc_tstream_state *transp;
struct iovec req;
uint32_t max_rdata_len;
struct iovec rep;
};
static void rpc_tstream_trans_writev(struct tevent_req *subreq);
static void rpc_tstream_trans_readv_pdu(struct tevent_req *subreq);
static int rpc_tstream_trans_next_vector(struct tstream_context *stream,
void *private_data,
TALLOC_CTX *mem_ctx,
struct iovec **_vector,
size_t *count);
static struct tevent_req *rpc_tstream_trans_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
uint8_t *data, size_t data_len,
uint32_t max_rdata_len,
void *priv)
{
struct rpc_tstream_state *transp =
talloc_get_type_abort(priv, struct rpc_tstream_state);
struct tevent_req *req, *subreq;
struct rpc_tstream_trans_state *state;
struct timeval endtime;
req = tevent_req_create(mem_ctx, &state,
struct rpc_tstream_trans_state);
if (req == NULL) {
return NULL;
}
if (!rpc_tstream_is_connected(transp)) {
tevent_req_nterror(req, NT_STATUS_CONNECTION_INVALID);
return tevent_req_post(req, ev);
}
state->ev = ev;
state->transp = transp;
state->req.iov_len = data_len;
state->req.iov_base = discard_const_p(void *, data);
state->max_rdata_len = max_rdata_len;
endtime = timeval_current_ofs(0, transp->timeout * 1000);
subreq = tstream_writev_queue_send(state, ev,
transp->stream,
transp->write_queue,
&state->req, 1);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
if (!tevent_req_set_endtime(subreq, ev, endtime)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, rpc_tstream_trans_writev, req);
if (tstream_is_cli_np(transp->stream)) {
tstream_cli_np_use_trans(transp->stream);
}
subreq = tstream_readv_pdu_queue_send(state, ev,
transp->stream,
transp->read_queue,
rpc_tstream_trans_next_vector,
state);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
if (!tevent_req_set_endtime(subreq, ev, endtime)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, rpc_tstream_trans_readv_pdu, req);
return req;
}
static void rpc_tstream_trans_writev(struct tevent_req *subreq)
{
struct tevent_req *req =
tevent_req_callback_data(subreq,
struct tevent_req);
struct rpc_tstream_trans_state *state =
tevent_req_data(req,
struct rpc_tstream_trans_state);
int ret;
int err;
ret = tstream_writev_queue_recv(subreq, &err);
TALLOC_FREE(subreq);
if (ret == -1) {
rpc_tstream_disconnect(state->transp);
tevent_req_nterror(req, map_nt_error_from_unix(err));
return;
}
}
static int rpc_tstream_trans_next_vector(struct tstream_context *stream,
void *private_data,
TALLOC_CTX *mem_ctx,
struct iovec **_vector,
size_t *count)
{
struct rpc_tstream_trans_state *state =
talloc_get_type_abort(private_data,
struct rpc_tstream_trans_state);
struct iovec *vector;
if (state->max_rdata_len == state->rep.iov_len) {
*_vector = NULL;
*count = 0;
return 0;
}
state->rep.iov_base = talloc_array(state, uint8_t,
state->max_rdata_len);
if (state->rep.iov_base == NULL) {
return -1;
}
state->rep.iov_len = state->max_rdata_len;
vector = talloc_array(mem_ctx, struct iovec, 1);
if (!vector) {
return -1;
}
vector[0] = state->rep;
*_vector = vector;
*count = 1;
return 0;
}
static void rpc_tstream_trans_readv_pdu(struct tevent_req *subreq)
{
struct tevent_req *req =
tevent_req_callback_data(subreq,
struct tevent_req);
struct rpc_tstream_trans_state *state =
tevent_req_data(req,
struct rpc_tstream_trans_state);
int ret;
int err;
ret = tstream_readv_pdu_queue_recv(subreq, &err);
TALLOC_FREE(subreq);
if (ret == -1) {
rpc_tstream_disconnect(state->transp);
tevent_req_nterror(req, map_nt_error_from_unix(err));
return;
}
tevent_req_done(req);
}
static NTSTATUS rpc_tstream_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
uint8_t **prdata, uint32_t *prdata_len)
{
struct rpc_tstream_trans_state *state =
tevent_req_data(req,
struct rpc_tstream_trans_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
*prdata = (uint8_t *)talloc_move(mem_ctx, &state->rep.iov_base);
*prdata_len = state->rep.iov_len;
return NT_STATUS_OK;
}
/**
* @brief Initialize a tstream transport facility
* NOTE: this function will talloc_steal, the stream and the queues.
@ -352,8 +542,13 @@ NTSTATUS rpc_transport_tstream_init(TALLOC_CTX *mem_ctx,
state->stream = talloc_move(state, stream);
state->timeout = 10000; /* 10 seconds. */
result->trans_send = NULL;
result->trans_recv = NULL;
if (tstream_is_cli_np(state->stream)) {
result->trans_send = rpc_tstream_trans_send;
result->trans_recv = rpc_tstream_trans_recv;
} else {
result->trans_send = NULL;
result->trans_recv = NULL;
}
result->write_send = rpc_tstream_write_send;
result->write_recv = rpc_tstream_write_recv;
result->read_send = rpc_tstream_read_send;