1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* Unix SMB/CIFS implementation.
* RPC client transport over a socket
* Copyright (C) Volker Lendecke 2009
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_CLI
struct rpc_transport_sock_state {
int fd;
};
static int rpc_transport_sock_state_destructor(struct rpc_transport_sock_state *s)
{
if (s->fd != -1) {
close(s->fd);
s->fd = -1;
}
return 0;
}
struct rpc_sock_read_state {
ssize_t received;
};
static void rpc_sock_read_done(struct tevent_req *subreq);
static struct async_req *rpc_sock_read_send(TALLOC_CTX *mem_ctx,
struct event_context *ev,
uint8_t *data, size_t size,
void *priv)
{
struct rpc_transport_sock_state *sock_transp = talloc_get_type_abort(
priv, struct rpc_transport_sock_state);
struct async_req *result;
struct tevent_req *subreq;
struct rpc_sock_read_state *state;
if (!async_req_setup(mem_ctx, &result, &state,
struct rpc_sock_read_state)) {
return NULL;
}
subreq = async_recv_send(state, ev, sock_transp->fd, data, size, 0);
if (subreq == NULL) {
goto fail;
}
subreq->async.fn = rpc_sock_read_done;
subreq->async.private_data = result;
return result;
fail:
TALLOC_FREE(result);
return NULL;
}
static void rpc_sock_read_done(struct tevent_req *subreq)
{
struct async_req *req = talloc_get_type_abort(
subreq->async.private_data, struct async_req);
struct rpc_sock_read_state *state = talloc_get_type_abort(
req->private_data, struct rpc_sock_read_state);
int err;
state->received = async_recv_recv(subreq, &err);
if (state->received == -1) {
async_req_nterror(req, map_nt_error_from_unix(err));
return;
}
async_req_done(req);
}
static NTSTATUS rpc_sock_read_recv(struct async_req *req, ssize_t *preceived)
{
struct rpc_sock_read_state *state = talloc_get_type_abort(
req->private_data, struct rpc_sock_read_state);
NTSTATUS status;
if (async_req_is_nterror(req, &status)) {
return status;
}
*preceived = state->received;
return NT_STATUS_OK;
}
static struct async_req *rpc_sock_write_send(TALLOC_CTX *mem_ctx,
struct event_context *ev,
const uint8_t *data, size_t size,
void *priv)
{
struct rpc_transport_sock_state *sock_transp = talloc_get_type_abort(
priv, struct rpc_transport_sock_state);
return async_send(mem_ctx, ev, sock_transp->fd, data, size, 0);
}
static NTSTATUS rpc_sock_write_recv(struct async_req *req, ssize_t *psent)
{
ssize_t sent;
int sys_errno;
sent = async_syscall_result_ssize_t(req, &sys_errno);
if (sent == -1) {
return map_nt_error_from_unix(sys_errno);
}
*psent = sent;
return NT_STATUS_OK;
}
NTSTATUS rpc_transport_sock_init(TALLOC_CTX *mem_ctx, int fd,
struct rpc_cli_transport **presult)
{
struct rpc_cli_transport *result;
struct rpc_transport_sock_state *state;
result = talloc(mem_ctx, struct rpc_cli_transport);
if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
state = talloc(result, struct rpc_transport_sock_state);
if (state == NULL) {
TALLOC_FREE(result);
return NT_STATUS_NO_MEMORY;
}
result->priv = state;
state->fd = fd;
talloc_set_destructor(state, rpc_transport_sock_state_destructor);
result->trans_send = NULL;
result->trans_recv = NULL;
result->write_send = rpc_sock_write_send;
result->write_recv = rpc_sock_write_recv;
result->read_send = rpc_sock_read_send;
result->read_recv = rpc_sock_read_recv;
*presult = result;
return NT_STATUS_OK;
}
|
