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只写mac地址，不改变interfaces中文件其他内容

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This commit is contained in:
zzh 2026-02-03 13:26:26 +08:00
parent 07f6927fec
commit f5a7ed1b7f
1 changed files with 73 additions and 27 deletions
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100
update_mac_pdd.c
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@ -500,39 +500,85 @@ static int update_hwaddress_in_interfaces(const char* interfaces_path, const cha
}
}
const char* tmpl =
"# interfaces(5) file used by ifup(8) and ifdown(8)\n"
"# Include files from /etc/network/interfaces.d:\n"
"source-directory /etc/network/interfaces.d\n"
"auto lo\n"
"iface lo inet loopback\n"
"auto eth0\n"
"iface eth0 inet static\n"
"address 10.10.12.12\n"
"netmask 255.255.255.0\n"
"gateway 10.10.12.1\n"
"hwaddress ether %s\n";
char* newbuf = (char*)malloc(1024);
if (!newbuf) {
fprintf(stderr, "malloc failed\n");
// 读取原文件内容
FILE* fp = fopen(interfaces_path, "r");
if (!fp) {
fprintf(stderr, "无法打开文件 %s: %s\n", interfaces_path, strerror(errno));
return -1;
}
int n = snprintf(newbuf, 1024, tmpl, mac_colon);
if (n <= 0) {
char* newbuf = (char*)malloc(4096);
if (!newbuf) {
fprintf(stderr, "malloc failed\n");
fclose(fp);
return -1;
}
char line[512];
int offset = 0;
int found = 0;
while (fgets(line, sizeof(line), fp)) {
// 检查是否是 hwaddress ether 行
if (strstr(line, "hwaddress") && strstr(line, "ether")) {
// 替换为新的MAC地址
int n = snprintf(newbuf + offset, 4096 - offset, "hwaddress ether %s\n", mac_colon);
if (n > 0 && offset + n < 4096) {
offset += n;
found = 1;
}
} else {
// 保持原行不变
int len = strlen(line);
if (offset + len < 4096) {
memcpy(newbuf + offset, line, len);
offset += len;
}
}
}
fclose(fp);
if (!found) {
fprintf(stderr, "未找到 hwaddress ether 行\n");
free(newbuf);
return -1;
}
int rc = write_file(interfaces_path, newbuf, (size_t)n);
int rc = write_file(interfaces_path, newbuf, (size_t)offset);
if (rc == 0) {
sync();
printf("写入完整 interfaces 文件并更新MAC: %s\n", mac_colon);
printf("写入 interfaces 更新MAC: %s\n", mac_colon);
} else {
fprintf(stderr, "写入失败 %s\n", interfaces_path);
}
free(newbuf);
// 额外写入到vendor_storage
if (rc == 0) {
// 转换MAC格式: 90:A9:F7:30:00:01 -> 90A9F7300001
char mac_hex[13];
int j = 0;
for (int i = 0; i < 17 && j < 12; i++) {
if (mac_colon[i] != ':') {
mac_hex[j++] = mac_colon[i];
}
}
mac_hex[12] = '\0';
// 构建并执行vendor_storage命令
char cmd[256];
snprintf(cmd, sizeof(cmd), "vendor_storage -w VENDOR_LAN_MAC_ID -t hex -i %s 2>/dev/null", mac_hex);
fprintf(stdout, "[vendor_storage] 保存MAC到vendor_storage: %s\n", mac_colon);
int vs_ret = system(cmd);
if (vs_ret == 0) {
fprintf(stdout, "[vendor_storage] MAC已保存到vendor_storage\n");
} else {
fprintf(stderr, "[vendor_storage] 保存失败（不影响主流程）\n");
}
}
return rc;
}
@ -704,7 +750,7 @@ static int get_remote_file_md5(const char* host, const char* remote_path, char*
if (!host || !remote_path || !out_md5 || out_size < 33) return -1;
char cmd[512];
snprintf(cmd, sizeof(cmd), "/opt/sshpass_arm64 -p 'Zzh08165511' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@%s 'md5sum %s 2>/dev/null | cut -d\" \" -f1'", host, remote_path);
snprintf(cmd, sizeof(cmd), "/usr/bin/sshpass_arm64 -p 'Zzh08165511' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@%s 'md5sum %s 2>/dev/null | cut -d\" \" -f1'", host, remote_path);
FILE* fp = popen(cmd, "r");
if (!fp) {
@ -746,7 +792,7 @@ static int copy_remote_directory(const char* host, const char* remote_dir, const
if (!host || !remote_dir || !local_dir) return -1;
char cmd[512];
snprintf(cmd, sizeof(cmd), "/opt/sshpass_arm64 -p 'Zzh08165511' scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -r root@%s:%s/* %s/", host, remote_dir, local_dir);
snprintf(cmd, sizeof(cmd), "/usr/bin/sshpass_arm64 -p 'Zzh08165511' scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -r root@%s:%s/* %s/", host, remote_dir, local_dir);
fprintf(stdout, "正在复制远程目录: %s:%s -> %s\n", host, remote_dir, local_dir);
@ -1345,7 +1391,7 @@ static void gpio_init_yellow(void) {
write(fd, "113", 3); // TODO 注意改版对应脚名称
close(fd);
}
fd = open("/sys/class/gpio/gpio113/direction", O_WRONLY); // TODO 注意改版对应脚名称
fd = open("/sys/class/gpio/gpio114/direction", O_WRONLY); // TODO 注意改版对应脚名称
if (fd >= 0) {
write(fd, "out", 3);
close(fd);
@ -1353,7 +1399,7 @@ static void gpio_init_yellow(void) {
}
static void* led_blink_thread(void* arg) {
int fd = open("/sys/class/gpio/gpio113/value", O_WRONLY); // TODO 注意改版对应脚名称
int fd = open("/sys/class/gpio/gpio114/value", O_WRONLY); // TODO 注意改版对应脚名称
if (fd < 0) return NULL;
while (led_running) {
write(fd, "1", 1);
@ -1368,7 +1414,7 @@ static void* led_blink_thread(void* arg) {
}
static void* led_fast_blink_thread(void* arg) {
int fd = open("/sys/class/gpio/gpio113/value", O_WRONLY); // TODO 注意改版对应脚名称
int fd = open("/sys/class/gpio/gpio114/value", O_WRONLY); // TODO 注意改版对应脚名称
if (fd < 0) return NULL;
while (led_running) {
write(fd, "1", 1);
@ -1408,7 +1454,7 @@ static void set_yellow_off(void) {
stop_yellow_blink();
// 初始化GPIO并置为低电平（灭灯）
gpio_init_yellow();
int fd = open("/sys/class/gpio/gpio113/value", O_WRONLY); // TODO 注意改版对应脚名称
int fd = open("/sys/class/gpio/gpio114/value", O_WRONLY); // TODO 注意改版对应脚名称
if (fd < 0) return;
write(fd, "0", 1);
close(fd);
@ -1419,7 +1465,7 @@ static void set_yellow_on(void) {
stop_yellow_blink();
// 初始化GPIO并置为高电平（常亮）
gpio_init_yellow();
int fd = open("/sys/class/gpio/gpio113/value", O_WRONLY); // TODO 注意改版对应脚名称
int fd = open("/sys/class/gpio/gpio114/value", O_WRONLY); // TODO 注意改版对应脚名称
if (fd < 0) return;
write(fd, "1", 1);
close(fd);