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
|
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <unistd.h>
#include <errno.h>
#include "vold.h"
#include "cmd_dispatch.h"
#include "ums.h"
#include "volmgr.h"
struct cmd_dispatch {
char *cmd;
int (* dispatch) (char *);
};
static void dispatch_cmd(char *cmd);
static int do_send_ums_status(char *cmd);
static int do_set_ums_enable(char *cmd);
static int do_mount_volume(char *cmd);
static int do_eject_media(char *cmd);
static int do_format_media(char *cmd);
static struct cmd_dispatch dispatch_table[] = {
{ VOLD_CMD_ENABLE_UMS, do_set_ums_enable },
{ VOLD_CMD_DISABLE_UMS, do_set_ums_enable },
{ VOLD_CMD_SEND_UMS_STATUS, do_send_ums_status },
{ VOLD_CMD_MOUNT_VOLUME, do_mount_volume },
{ VOLD_CMD_EJECT_MEDIA, do_eject_media },
{ VOLD_CMD_FORMAT_MEDIA, do_format_media },
{ NULL, NULL }
};
int process_framework_command(int socket)
{
int rc;
char buffer[101];
if ((rc = read(socket, buffer, sizeof(buffer) -1)) < 0) {
LOGE("Unable to read framework command (%s)", strerror(errno));
return -errno;
} else if (!rc)
return -ECONNRESET;
int start = 0;
int i;
buffer[rc] = 0;
for (i = 0; i < rc; i++) {
if (buffer[i] == 0) {
dispatch_cmd(buffer + start);
start = i + 1;
}
}
return 0;
}
static void dispatch_cmd(char *cmd)
{
struct cmd_dispatch *c;
LOG_VOL("dispatch_cmd(%s):", cmd);
for (c = dispatch_table; c->cmd != NULL; c++) {
if (!strncmp(c->cmd, cmd, strlen(c->cmd))) {
c->dispatch(cmd);
return;
}
}
LOGE("No cmd handlers defined for '%s'", cmd);
}
static int do_send_ums_status(char *cmd)
{
return ums_send_status();
}
static int do_set_ums_enable(char *cmd)
{
if (!strcmp(cmd, VOLD_CMD_ENABLE_UMS))
return volmgr_enable_ums(true);
return volmgr_enable_ums(false);
}
static int do_mount_volume(char *cmd)
{
return volmgr_start_volume_by_mountpoint(&cmd[strlen("mount_volume:")]);
}
static int do_format_media(char *cmd)
{
return volmgr_format_volume(&cmd[strlen("format_media:")]);
}
static int do_eject_media(char *cmd)
{
return volmgr_stop_volume_by_mountpoint(&cmd[strlen("eject_media:")]);
}
|
