int link_config_ctx_new(link_config_ctx **ret) {
_cleanup_link_config_ctx_free_ link_config_ctx *ctx = NULL;
- int r;
if (!ret)
return -EINVAL;
if (!ctx)
return -ENOMEM;
- r = ethtool_connect(&ctx->ethtool_fd);
- if (r < 0)
- return r;
-
- r = sd_rtnl_open(0, &ctx->rtnl);
- if (r < 0)
- return r;
-
LIST_HEAD_INIT(ctx->links);
+ ctx->ethtool_fd = -1;
+
ctx->link_dirs = strv_new("/etc/systemd/network",
"/run/systemd/network",
"/usr/lib/systemd/network",
return 0;
}
+static int link_config_ctx_connect(link_config_ctx *ctx) {
+ int r;
+
+ if (ctx->ethtool_fd >= 0 && ctx->rtnl)
+ return 0;
+
+ r = ethtool_connect(&ctx->ethtool_fd);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_open(0, &ctx->rtnl);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
static void link_configs_free(link_config_ctx *ctx) {
link_config *link, *link_next;
}
if (need_update) {
- r = sd_rtnl_send_with_reply_and_block(rtnl, message, 5 * USEC_PER_SEC, NULL);
+ r = sd_rtnl_send_with_reply_and_block(rtnl, message, 0, NULL);
if (r < 0)
return r;
}
static bool mac_is_random(struct udev_device *device) {
const char *s;
- int type;
+ unsigned type;
+ int r;
s = udev_device_get_sysattr_value(device, "addr_assign_type");
if (!s)
- return -EINVAL;
- type = strtoul(s, NULL, 0);
+ return false; /* if we don't know, assume it is not random */
+ r = safe_atou(s, &type);
+ if (r < 0)
+ return false;
/* check for NET_ADDR_RANDOM */
return type == 1;
static bool mac_is_permanent(struct udev_device *device) {
const char *s;
- int type;
+ unsigned type;
+ int r;
s = udev_device_get_sysattr_value(device, "addr_assign_type");
if (!s)
- return -EINVAL;
- type = strtoul(s, NULL, 0);
+ return true; /* if we don't know, assume it is permanent */
+ r = safe_atou(s, &type);
+ if (r < 0)
+ return true;
/* check for NET_ADDR_PERM */
return type == 0;
struct ether_addr *mac = NULL;
int r, ifindex;
+ r = link_config_ctx_connect(ctx);
+ if (r < 0)
+ return r;
+
name = udev_device_get_sysname(device);
if (!name)
return -EINVAL;