forked from Minki/linux
9c92ab6191
Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
128 lines
2.7 KiB
C
128 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* ionapp_export.c
|
|
*
|
|
* It is a user space utility to create and export android
|
|
* ion memory buffer fd to another process using unix domain socket as IPC.
|
|
* This acts like a server for ionapp_import(client).
|
|
* So, this server has to be started first before the client.
|
|
*
|
|
* Copyright (C) 2017 Pintu Kumar <pintu.ping@gmail.com>
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <sys/time.h>
|
|
#include "ionutils.h"
|
|
#include "ipcsocket.h"
|
|
|
|
|
|
void print_usage(int argc, char *argv[])
|
|
{
|
|
printf("Usage: %s [-h <help>] [-i <heap id>] [-s <size in bytes>]\n",
|
|
argv[0]);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int opt, ret, status, heapid;
|
|
int sockfd, client_fd, shared_fd;
|
|
unsigned char *map_buf;
|
|
unsigned long map_len, heap_type, heap_size, flags;
|
|
struct ion_buffer_info info;
|
|
struct socket_info skinfo;
|
|
|
|
if (argc < 2) {
|
|
print_usage(argc, argv);
|
|
return -1;
|
|
}
|
|
|
|
heap_size = 0;
|
|
flags = 0;
|
|
heap_type = ION_HEAP_TYPE_SYSTEM;
|
|
|
|
while ((opt = getopt(argc, argv, "hi:s:")) != -1) {
|
|
switch (opt) {
|
|
case 'h':
|
|
print_usage(argc, argv);
|
|
exit(0);
|
|
break;
|
|
case 'i':
|
|
heapid = atoi(optarg);
|
|
switch (heapid) {
|
|
case 0:
|
|
heap_type = ION_HEAP_TYPE_SYSTEM;
|
|
break;
|
|
case 1:
|
|
heap_type = ION_HEAP_TYPE_SYSTEM_CONTIG;
|
|
break;
|
|
default:
|
|
printf("ERROR: heap type not supported\n");
|
|
exit(1);
|
|
}
|
|
break;
|
|
case 's':
|
|
heap_size = atoi(optarg);
|
|
break;
|
|
default:
|
|
print_usage(argc, argv);
|
|
exit(1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (heap_size <= 0) {
|
|
printf("heap_size cannot be 0\n");
|
|
print_usage(argc, argv);
|
|
exit(1);
|
|
}
|
|
|
|
printf("heap_type: %ld, heap_size: %ld\n", heap_type, heap_size);
|
|
info.heap_type = heap_type;
|
|
info.heap_size = heap_size;
|
|
info.flag_type = flags;
|
|
|
|
/* This is server: open the socket connection first */
|
|
/* Here; 1 indicates server or exporter */
|
|
status = opensocket(&sockfd, SOCKET_NAME, 1);
|
|
if (status < 0) {
|
|
fprintf(stderr, "<%s>: Failed opensocket.\n", __func__);
|
|
goto err_socket;
|
|
}
|
|
skinfo.sockfd = sockfd;
|
|
|
|
ret = ion_export_buffer_fd(&info);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "FAILED: ion_get_buffer_fd\n");
|
|
goto err_export;
|
|
}
|
|
client_fd = info.ionfd;
|
|
shared_fd = info.buffd;
|
|
map_buf = info.buffer;
|
|
map_len = info.buflen;
|
|
write_buffer(map_buf, map_len);
|
|
|
|
/* share ion buf fd with other user process */
|
|
printf("Sharing fd: %d, Client fd: %d\n", shared_fd, client_fd);
|
|
skinfo.datafd = shared_fd;
|
|
skinfo.buflen = map_len;
|
|
|
|
ret = socket_send_fd(&skinfo);
|
|
if (ret < 0) {
|
|
fprintf(stderr, "FAILED: socket_send_fd\n");
|
|
goto err_send;
|
|
}
|
|
|
|
err_send:
|
|
err_export:
|
|
ion_close_buffer_fd(&info);
|
|
|
|
err_socket:
|
|
closesocket(sockfd, SOCKET_NAME);
|
|
|
|
return 0;
|
|
}
|