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/*
* Author: Christian Storm
* Copyright (C) 2022, Siemens AG
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#include <stdlib.h>
#include <errno.h>
#include <util.h>
#include <bootloader.h>
int (*bootloader_env_set)(const char *, const char *);
int (*bootloader_env_unset)(const char *);
char* (*bootloader_env_get)(const char *);
int (*bootloader_apply_list)(const char *);
typedef struct {
const char *name;
bootloader *funcs;
} entry;
static entry *current = NULL;
static entry *available = NULL;
static unsigned int num_available = 0;
int register_bootloader(const char *name, bootloader *bl)
{
entry *tmp = realloc(available, (num_available + 1) * sizeof(entry));
if (!tmp) {
return -ENOMEM;
}
tmp[num_available].name = (char*)name;
tmp[num_available].funcs = bl;
num_available++;
available = tmp;
return 0;
}
int set_bootloader(const char *name)
{
if (!name) {
return -ENOENT;
}
for (unsigned int i = 0; i < num_available; i++) {
if (available[i].funcs &&
(strcmp(available[i].name, name) == 0)) {
bootloader_env_set = available[i].funcs->env_set;
bootloader_env_get = available[i].funcs->env_get;
bootloader_env_unset = available[i].funcs->env_unset;
bootloader_apply_list = available[i].funcs->apply_list;
current = &available[i];
return 0;
}
}
return -ENOENT;
}
bool is_bootloader(const char *name) {
if (!name || !current) {
return false;
}
return strcmp(current->name, name) == 0;
}
const char* get_bootloader(void)
{
return current ? current->name : NULL;
}
void print_registered_bootloaders(void)
{
TRACE("Registered bootloaders:");
for (unsigned int i = 0; i < num_available; i++) {
TRACE("\t%s\t%s", available[i].name,
available[i].funcs == NULL ? "shared lib not found."
: "loaded.");
}
}
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