EMILE/tools/emile-conf.c
Laurent Vivier 3be63e7001 tools: add tools to set conf path into emiledriver
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2015-11-10 22:23:53 +01:00

189 lines
3.8 KiB
C

/*
*
* (c) 2004 Laurent Vivier <Laurent@Vivier.EU>
*
*/
#include <stdio.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include "libemile.h"
#include "libconfig.h"
#include "device.h"
enum {
ARG_NONE = 0,
ARG_HELP ='h',
ARG_GETINFO = 'g',
};
static struct option long_options[] =
{
{"help", 0, NULL, ARG_HELP },
{"getinfo", 1, NULL, ARG_GETINFO },
{NULL, 0, NULL, 0 },
};
static void usage(int argc, char** argv)
{
fprintf(stderr, "Usage: %s [OPTION] <partition> <path>\n", argv[0]);
fprintf(stderr, "Set/get the path to the configuration file\n");
fprintf(stderr, " -h, --help display this text\n");
fprintf(stderr, " -g, --getinfo "
"get second level information\n");
fprintf(stderr, "Example:\n");
fprintf(stderr, " %s /dev/sda2 (sd0,4)/emile.conf\n", argv[0]);
fprintf(stderr, "sd -> SCSI disk\n");
fprintf(stderr, "0 -> SCSI Id\n");
fprintf(stderr, "4 -> partition /dev/sda5\n");
fprintf(stderr, "\nbuild: \n%s\n", SIGNATURE);
}
static int set_conf(char* image, char *path)
{
int fd;
char property[256];
int ret;
device_io_t device;
int driver;
int disk;
int partition;
char dev_name[256];
map_t *map;
snprintf(property, 256, "configuration %s", path);
fd = open(image, O_RDWR);
if (fd == -1)
{
perror("Cannot open image file");
return 2;
}
ret = emile_second_set_configuration(fd, (int8_t *)property);
close(fd);
if (ret == -1) {
fprintf(stderr, "Cannot set configuration\n");
return 3;
}
/* compute driver new checksum */
ret = emile_scsi_get_rdev(image, &driver, &disk, &partition);
emile_get_dev_name(dev_name, driver, disk, 0);
device_sector_size = 512;
device.write_sector = (stream_write_sector_t)device_write_sector;
device.read_sector = (stream_read_sector_t)device_read_sector;
device.close = (stream_close_t)device_close;
device.get_blocksize = (stream_get_blocksize_t)device_get_blocksize;
device.data = (void*)device_open(dev_name, O_RDWR);
map = map_open(&device);
if (map == NULL)
{
fprintf(stderr, "ERROR: cannot open partition map\n");
return 4;
}
ret = map_update_checksum(map, 0);
if (ret == -1) {
fprintf(stderr, "ERROR: cannot update driver checksum\n");
return 5;
}
map_close(map);
return 0;
}
int get_conf(char* image)
{
int fd;
int8_t *configuration;
char property[256];
fd = open(image, O_RDONLY);
if (fd == -1)
{
perror("Cannot open image file");
return 2;
}
configuration = emile_second_get_configuration(fd);
close(fd);
if (configuration == NULL) {
fprintf(stderr, "Cannot find configuration\n");
return 3;
}
if (config_get_property(configuration, "configuration", property) == -1) {
fprintf(stderr, "Invalid configuration\n");
return 4;
}
printf("%s\n", property);
return 0;
}
int main(int argc, char** argv)
{
int ret;
char *file = NULL;
char *conf = NULL;
int action_getinfo = 0;
int option_index;
int c;
while(1)
{
c = getopt_long(argc, argv, "ha:k:r:g", long_options,
&option_index);
if (c == -1)
break;
switch(c)
{
case ARG_HELP:
usage(argc, argv);
return 0;
case ARG_GETINFO:
action_getinfo = 1;
break;
}
}
if (optind < argc)
file = argv[optind];
optind++;
if (optind < argc)
conf = argv[optind];
if (file == NULL)
{
fprintf(stderr,
"ERROR: you must provide an image file or a block device.\n");
usage(argc, argv);
return 1;
}
if (action_getinfo)
return get_conf(file);
if (conf == NULL) {
fprintf(stderr,
"ERROR: you must provide an configuration path.\n");
usage(argc, argv);
return 1;
}
ret = set_conf(file, conf);
return ret;
}