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#include "parser.h"
#include "params.h"
#include "paths.h"
#include "yaboot-cfg.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <ctype.h>
#include <sys/param.h>
static struct device *dev;
static char *devpath;
static char *defimage;
char *
make_params(char *label, char *params)
{
char *p, *q;
static char buffer[2048];
q = buffer;
*q = 0;
p = cfg_get_strg(label, "literal");
if (p) {
strcpy(q, p);
q = strchr(q, 0);
if (params) {
if (*p)
*q++ = ' ';
strcpy(q, params);
}
return buffer;
}
p = cfg_get_strg(label, "root");
if (p) {
strcpy (q, "root=");
strcpy (q + 5, p);
q = strchr (q, 0);
*q++ = ' ';
}
if (cfg_get_flag(label, "read-only")) {
strcpy (q, "ro ");
q += 3;
}
if (cfg_get_flag(label, "read-write")) {
strcpy (q, "rw ");
q += 3;
}
p = cfg_get_strg(label, "ramdisk");
if (p) {
strcpy (q, "ramdisk=");
strcpy (q + 8, p);
q = strchr (q, 0);
*q++ = ' ';
}
p = cfg_get_strg(label, "initrd-size");
if (p) {
strcpy (q, "ramdisk_size=");
strcpy (q + 13, p);
q = strchr (q, 0);
*q++ = ' ';
}
if (cfg_get_flag(label, "novideo")) {
strcpy (q, "video=ofonly");
q = strchr (q, 0);
*q++ = ' ';
}
p = cfg_get_strg (label, "append");
if (p) {
strcpy (q, p);
q = strchr (q, 0);
*q++ = ' ';
}
*q = 0;
if (params)
strcpy(q, params);
return buffer;
}
static int check_and_add_device(struct device *dev)
{
if (!dev->icon_file)
dev->icon_file = strdup(generic_icon_file(guess_device_type()));
return !add_device(dev);
}
void process_image(char *label)
{
struct boot_option opt;
char *cfgopt;
memset(&opt, 0, sizeof(opt));
opt.name = label;
cfgopt = cfg_get_strg(label, "image");
opt.boot_image_file = resolve_path(cfgopt, devpath);
if (cfgopt == defimage)
pb_log("This one is default. What do we do about it?\n");
cfgopt = cfg_get_strg(label, "initrd");
if (cfgopt)
opt.initrd_file = resolve_path(cfgopt, devpath);
opt.boot_args = make_params(label, NULL);
add_boot_option(&opt);
if (opt.initrd_file)
free(opt.initrd_file);
}
static int yaboot_parse(const char *device)
{
char *filepath;
char *conf_file;
char *tmpstr;
ssize_t conf_len;
int fd;
struct stat st;
char *label;
devpath = strdup(device);
filepath = resolve_path("/etc/yaboot.conf", devpath);
fd = open(filepath, O_RDONLY);
if (fd < 0) {
free(filepath);
filepath = resolve_path("/yaboot.conf", devpath);
fd = open(filepath, O_RDONLY);
if (fd < 0)
return 0;
}
if (fstat(fd, &st)) {
close(fd);
return 0;
}
conf_file = malloc(st.st_size+1);
if (!conf_file) {
close(fd);
return 0;
}
conf_len = read(fd, conf_file, st.st_size);
if (conf_len < 0) {
close(fd);
return 0;
}
conf_file[conf_len] = 0;
close(fd);
if (cfg_parse(filepath, conf_file, conf_len)) {
pb_log("Error parsing yaboot.conf\n");
return 0;
}
free(filepath);
dev = malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
dev->id = strdup(devpath);
if (cfg_get_strg(0, "init-message")) {
char *newline;
dev->description = strdup(cfg_get_strg(0, "init-message"));
newline = strchr(dev->description, '\n');
if (newline)
*newline = 0;
}
dev->icon_file = strdup(generic_icon_file(guess_device_type()));
/* If we have a 'partiton=' directive, update the default devpath
* to use that instead of the current device */
tmpstr = cfg_get_strg(0, "partition");
if (tmpstr) {
char *endp;
int partnr = strtol(tmpstr, &endp, 10);
if (endp != tmpstr && !*endp) {
char *new_dev, *tmp;
new_dev = malloc(strlen(devpath) + strlen(tmpstr) + 1);
if (!new_dev)
return 0;
strcpy(new_dev, devpath);
/* Strip digits (partition number) from string */
endp = new_dev + strlen(devpath) - 1;
while (isdigit(*endp))
*(endp--) = 0;
/* and add our own... */
sprintf(endp + 1, "%d", partnr);
tmp = devpath;
devpath = parse_device_path(new_dev, devpath);
free(tmp);
free(new_dev);
}
}
defimage = cfg_get_default();
if (!defimage)
return 0;
defimage = cfg_get_strg(defimage, "image");
label = cfg_next_image(NULL);
if (!label || !check_and_add_device(dev))
return 0;
do {
process_image(label);
} while ((label = cfg_next_image(label)));
return 1;
}
struct parser yaboot_parser = {
.name = "yaboot.conf parser",
.priority = 99,
.parse = yaboot_parse
};
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