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