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
|
/*
Unix SMB/CIFS implementation.
Samba internal messaging functions (send).
Copyright (C) Andrew Tridgell 2004
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"
#include "messaging/messaging.h"
#include "messaging/irpc.h"
#include "lib/messaging/messages_dgm.h"
#include "lib/messaging/messages_dgm_ref.h"
#include "../source3/lib/messages_util.h"
#include "messaging/messaging_internal.h"
#include "lib/util/server_id_db.h"
#include "cluster/cluster.h"
#include "../lib/util/unix_privs.h"
/*
* This file is for functions that can be called from auth_log without
* depending on all of dcerpc and so cause dep loops.
*/
/*
return a list of server ids for a server name
*/
NTSTATUS irpc_servers_byname(struct imessaging_context *msg_ctx,
TALLOC_CTX *mem_ctx, const char *name,
unsigned *num_servers,
struct server_id **servers)
{
int ret;
ret = server_id_db_lookup(msg_ctx->names, name, mem_ctx,
num_servers, servers);
if (ret != 0) {
return map_nt_error_from_unix_common(ret);
}
return NT_STATUS_OK;
}
/*
Send a message to a particular server
*/
NTSTATUS imessaging_send(struct imessaging_context *msg, struct server_id server,
uint32_t msg_type, const DATA_BLOB *data)
{
uint8_t hdr[MESSAGE_HDR_LENGTH];
struct iovec iov[2];
int num_iov, ret;
pid_t pid;
void *priv;
if (!cluster_node_equal(&msg->server_id, &server)) {
/* No cluster in source4... */
return NT_STATUS_OK;
}
message_hdr_put(hdr, msg_type, msg->server_id, server);
iov[0] = (struct iovec) { .iov_base = &hdr, .iov_len = sizeof(hdr) };
num_iov = 1;
if (data != NULL) {
iov[1] = (struct iovec) { .iov_base = data->data,
.iov_len = data->length };
num_iov += 1;
}
pid = server.pid;
if (pid == 0) {
pid = getpid();
}
ret = messaging_dgm_send(pid, iov, num_iov, NULL, 0);
if (ret == EACCES) {
priv = root_privileges();
ret = messaging_dgm_send(pid, iov, num_iov, NULL, 0);
TALLOC_FREE(priv);
}
if (ret != 0) {
return map_nt_error_from_unix_common(ret);
}
return NT_STATUS_OK;
}
/*
Send a message to a particular server, with the message containing a single pointer
*/
NTSTATUS imessaging_send_ptr(struct imessaging_context *msg, struct server_id server,
uint32_t msg_type, void *ptr)
{
DATA_BLOB blob;
blob.data = (uint8_t *)&ptr;
blob.length = sizeof(void *);
return imessaging_send(msg, server, msg_type, &blob);
}
|
