mirror of
https://github.com/liquidraver/ZephCore.git
synced 2026-09-01 22:08:19 +00:00
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
/*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#include "observer_creds.h"
|
|
|
|
#include <zephyr/fs/fs.h>
|
|
#include <zephyr/logging/log.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
LOG_MODULE_REGISTER(zephcore_observer_creds, CONFIG_ZEPHCORE_DATASTORE_LOG_LEVEL);
|
|
|
|
extern "C" bool observer_creds_load(struct ObserverCreds *creds,
|
|
const char *base_path)
|
|
{
|
|
char path[96];
|
|
snprintf(path, sizeof(path), "%s/obs_creds", base_path);
|
|
|
|
struct fs_file_t f;
|
|
fs_file_t_init(&f);
|
|
|
|
int rc = fs_open(&f, path, FS_O_READ);
|
|
if (rc < 0) {
|
|
LOG_DBG("obs_creds not found (%d), using defaults", rc);
|
|
memset(creds, 0, sizeof(*creds));
|
|
observer_creds_init(creds);
|
|
return false;
|
|
}
|
|
|
|
ssize_t n = fs_read(&f, creds, sizeof(*creds));
|
|
fs_close(&f);
|
|
|
|
if (n != (ssize_t)sizeof(*creds)) {
|
|
LOG_WRN("obs_creds truncated (%d/%d), resetting", (int)n,
|
|
(int)sizeof(*creds));
|
|
memset(creds, 0, sizeof(*creds));
|
|
observer_creds_init(creds);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
extern "C" bool observer_creds_save(const struct ObserverCreds *creds,
|
|
const char *base_path)
|
|
{
|
|
/* Atomic replace (.tmp + fs_sync + fs_rename), same pattern as
|
|
* identity/prefs — power loss mid-write must not corrupt the creds. */
|
|
char path[96];
|
|
char tmp_path[104];
|
|
snprintf(path, sizeof(path), "%s/obs_creds", base_path);
|
|
if (snprintf(tmp_path, sizeof(tmp_path), "%s.tmp", path) >=
|
|
(int)sizeof(tmp_path)) {
|
|
return false;
|
|
}
|
|
|
|
fs_unlink(tmp_path);
|
|
|
|
struct fs_file_t f;
|
|
fs_file_t_init(&f);
|
|
|
|
int rc = fs_open(&f, tmp_path, FS_O_WRITE | FS_O_CREATE | FS_O_TRUNC);
|
|
if (rc < 0) {
|
|
LOG_ERR("Cannot open %s for write: %d", tmp_path, rc);
|
|
return false;
|
|
}
|
|
|
|
ssize_t n = fs_write(&f, creds, sizeof(*creds));
|
|
rc = fs_sync(&f);
|
|
fs_close(&f);
|
|
|
|
if (n != (ssize_t)sizeof(*creds) || rc < 0) {
|
|
LOG_ERR("obs_creds write failed (%d/%d sync=%d)", (int)n,
|
|
(int)sizeof(*creds), rc);
|
|
fs_unlink(tmp_path);
|
|
return false;
|
|
}
|
|
|
|
if (fs_rename(tmp_path, path) < 0) {
|
|
LOG_ERR("obs_creds rename failed");
|
|
fs_unlink(tmp_path);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|