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/*
* This file is part of libsamsung-ipc.
*
* Copyright (C) 2021 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
*
* libsamsung-ipc 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 2 of the License, or
* (at your option) any later version.
*
* libsamsung-ipc 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 libsamsung-ipc. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <samsung-ipc.h>
#include <partitions/android/android.h>
#include "android.h"
static char const * const dummy_modem_image_paths[] = {
/* We can't use mktemp here since everything is const
* echo libsamsung-ipc | sha1sum | cut -c-20
* gives 55f4731d2e11e85bd889
*/
"/tmp/libsamsung-ipc.55f4731d2e11e85bd889/modem.img",
NULL
};
int delete_dummy_modem_image(struct ipc_client *client,
__attribute__((unused)) const char * const path)
{
int rc;
char *endp;
char *dir;
rc = unlink(path);
if (rc == -1) {
rc = errno;
if (rc != ENOENT) {
ipc_client_log(client,
"%s: unlink %s failed with error %d: %s",
__func__, path, rc, strerror(rc));
errno = rc;
return -1;
}
}
endp = strrchr(path, '/');
dir = malloc(endp - path + 1);
if (dir == NULL) {
rc = errno;
ipc_client_log(client,
"%s: calloc failed with error %d: %s",
__func__, rc, strerror(rc));
errno = rc;
return -1;
}
memcpy(dir, path, endp - path);
dir[endp - path] = '\0';
rc = rmdir(dir);
if (rc == -1) {
rc = errno;
if (rc != ENOENT) {
ipc_client_log(client,
"%s: rmdir %s failed with error %d: %s",
__func__, dir, rc, strerror(rc));
free(dir);
errno = rc;
return -1;
}
}
free(dir);
return 0;
}
int create_dummy_modem_image(struct ipc_client *client,
__attribute__((unused)) const char * const path)
{
int fd;
int rc;
rc = mkdir("/tmp/", 0755);
if (rc == -1) {
rc = errno;
if (rc != EEXIST) {
ipc_client_log(client,
"%s: mkdir %s failed with error %d: %s",
__func__, "/tmp/", rc, strerror(rc));
return -1;
}
}
rc = mkdir("/tmp/libsamsung-ipc.55f4731d2e11e85bd889/", 0755);
if (rc == -1) {
rc = errno;
if (rc != EEXIST) {
ipc_client_log(client,
"%s: mkdir %s failed with error %d: %s",
__func__,
"/tmp/libsamsung-ipc.55f4731d2e11e85bd889/",
rc, strerror(rc));
return -1;
}
}
fd = open("/tmp/libsamsung-ipc.55f4731d2e11e85bd889/modem.img",
O_CREAT, 0755);
if (fd == -1) {
rc = errno;
ipc_client_log(client,
"%s: open %s failed with error %d: %s",
__func__,
"/tmp/libsamsung-ipc.55f4731d2e11e85bd889/modem.img",
rc, strerror(rc));
goto error;
}
rc = close(fd);
if (rc == -1) {
rc = errno;
ipc_client_log(client,
"%s: close %s failed with error %d: %s",
__func__,
"/tmp/libsamsung-ipc.55f4731d2e11e85bd889/modem.img",
rc, strerror(rc));
goto error;
}
return 0;
error:
rc = delete_dummy_modem_image(
client, "/tmp/libsamsung-ipc.55f4731d2e11e85bd889/modem.img");
if (rc == -1)
ipc_client_log(client,
"%s: delete_dummy_modem_image %s failed with error -1",
__func__);
return -1;
}
int test_open_android_modem_partition(struct ipc_client *client)
{
int i;
int rc;
for (i = 0; dummy_modem_image_paths[i] != NULL; i++) {
rc = create_dummy_modem_image(client,
dummy_modem_image_paths[i]);
if (rc == -1) {
ipc_client_log(
client,
"%s: create_dummy_modem_image(client, %s)"
" failed\n",
__func__, dummy_modem_image_paths[i]);
return -1;
}
}
rc = open_android_modem_partition(client, dummy_modem_image_paths);
if (rc == -1) {
rc = errno;
ipc_client_log(client, "%s: open_android_modem_partition"
" failed with errror %d: %s\n",
__func__, rc, strerror(rc));
errno = rc;
return -1;
}
rc = close(rc);
if (rc == -1) {
rc = errno;
ipc_client_log(client,
"%s: close() failed with errror %d: %s\n",
__func__, rc, strerror(rc));
return -1;
}
rc = delete_dummy_modem_image(
client, "/tmp/libsamsung-ipc.55f4731d2e11e85bd889/modem.img");
if (rc == -1) {
rc = errno;
ipc_client_log(client,
"%s: delete_dummy_modem_image() failed with errror %d: %s\n",
__func__, rc, strerror(rc));
return -1;
}
return 0;
}
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