CMake: bump the minimum required CMake version to 3.5

[project/netifd.git] / system-linux.c

diff --git a/system-linux.c b/system-linux.c
index 4d2527908815589535fd84cc7d9bdd351c9c948b..4463a2a8282a1151cb99734d65dd57689a7fad52 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -169,19 +169,14 @@ static void
 handler_nl_event(struct uloop_fd *u, unsigned int events)
 {
        struct event_socket *ev = container_of(u, struct event_socket, uloop);
-       int err;
-       socklen_t errlen = sizeof(err);
+       int ret;
 
-       if (!u->error) {
-               nl_recvmsgs_default(ev->sock);
+       ret = nl_recvmsgs_default(ev->sock);
+       if (ret >= 0)
                return;
-       }
-
-       if (getsockopt(u->fd, SOL_SOCKET, SO_ERROR, (void *)&err, &errlen))
-               goto abort;
 
-       switch(err) {
-       case ENOBUFS:
+       switch (-ret) {
+       case NLE_NOMEM:
                /* Increase rx buffer size on netlink socket */
                ev->bufsize *= 2;
                if (nl_socket_set_buffer_size(ev->sock, ev->bufsize, 0))
@@ -195,7 +190,6 @@ handler_nl_event(struct uloop_fd *u, unsigned int events)
        default:
                goto abort;
        }
-       u->error = false;
        return;
 
 abort:
@@ -797,24 +791,19 @@ handle_hotplug_event(struct uloop_fd *u, unsigned int events)
        struct sockaddr_nl nla;
        unsigned char *buf = NULL;
        int size;
-       int err;
-       socklen_t errlen = sizeof(err);
 
-       if (!u->error) {
-               while ((size = nl_recv(ev->sock, &nla, &buf, NULL)) > 0) {
-                       if (nla.nl_pid == 0)
-                               handle_hotplug_msg((char *) buf, size);
+       while ((size = nl_recv(ev->sock, &nla, &buf, NULL)) > 0) {
+               if (nla.nl_pid == 0)
+                       handle_hotplug_msg((char *) buf, size);
 
-                       free(buf);
-               }
-               return;
+               free(buf);
        }
 
-       if (getsockopt(u->fd, SOL_SOCKET, SO_ERROR, (void *)&err, &errlen))
-               goto abort;
+       switch (-size) {
+       case 0:
+               return;
 
-       switch(err) {
-       case ENOBUFS:
+       case NLE_NOMEM:
                /* Increase rx buffer size on netlink socket */
                ev->bufsize *= 2;
                if (nl_socket_set_buffer_size(ev->sock, ev->bufsize, 0))
@@ -824,7 +813,6 @@ handle_hotplug_event(struct uloop_fd *u, unsigned int events)
        default:
                goto abort;
        }
-       u->error = false;
        return;
 
 abort:
@@ -970,7 +958,7 @@ int system_bridge_addif(struct device *bridge, struct device *dev)
                if (!ret)
                        break;
 
-               D(SYSTEM, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
+               D(SYSTEM, "Failed to add device '%s' to bridge '%s' (tries=%d): %s",
                  dev->ifname, bridge->ifname, tries, strerror(errno));
        }
 
@@ -1250,9 +1238,9 @@ static int cb_clear_event(struct nl_msg *msg, void *arg)
                return NL_SKIP;
 
        if (type == RTM_DELRULE)
-               D(SYSTEM, "Remove a rule\n");
+               D(SYSTEM, "Remove a rule");
        else
-               D(SYSTEM, "Remove %s from device %s\n",
+               D(SYSTEM, "Remove %s from device %s",
                  type == RTM_DELADDR ? "an address" : "a route",
                  clr->dev->ifname);
 
@@ -1265,9 +1253,9 @@ static int cb_clear_event(struct nl_msg *msg, void *arg)
        ret = nl_send_auto_complete(sock_rtnl, clr->msg);
        if (ret < 0) {
                if (type == RTM_DELRULE)
-                       D(SYSTEM, "Error deleting a rule: %d\n", ret);
+                       D(SYSTEM, "Error deleting a rule: %d", ret);
                else
-                       D(SYSTEM, "Error deleting %s from device '%s': %d\n",
+                       D(SYSTEM, "Error deleting %s from device '%s': %d",
                                type == RTM_DELADDR ? "an address" : "a route",
                                clr->dev->ifname, ret);
        }
@@ -1360,14 +1348,14 @@ void system_if_clear_state(struct device *dev)
        system_if_flags(dev->ifname, 0, IFF_UP);
 
        if (system_is_bridge(dev->ifname)) {
-               D(SYSTEM, "Delete existing bridge named '%s'\n", dev->ifname);
+               D(SYSTEM, "Delete existing bridge named '%s'", dev->ifname);
                system_bridge_delbr(dev);
                return;
        }
 
        bridge = system_get_bridge(dev->ifname, buf, sizeof(buf));
        if (bridge) {
-               D(SYSTEM, "Remove device '%s' from bridge '%s'\n", dev->ifname, bridge);
+               D(SYSTEM, "Remove device '%s' from bridge '%s'", dev->ifname, bridge);
                system_bridge_if(bridge, dev, SIOCBRDELIF, NULL);
        }
 
@@ -1460,7 +1448,7 @@ int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg)
 
        rv = system_rtnl_call(msg);
        if (rv)
-               D(SYSTEM, "Error adding bridge '%s': %d\n", bridge->ifname, rv);
+               D(SYSTEM, "Error adding bridge '%s': %d", bridge->ifname, rv);
 
        return rv;
 
@@ -1516,7 +1504,7 @@ int system_macvlan_add(struct device *macvlan, struct device *dev, struct macvla
 
        rv = system_rtnl_call(msg);
        if (rv)
-               D(SYSTEM, "Error adding macvlan '%s' over '%s': %d\n", macvlan->ifname, dev->ifname, rv);
+               D(SYSTEM, "Error adding macvlan '%s' over '%s': %d", macvlan->ifname, dev->ifname, rv);
 
        return rv;
 
@@ -1604,9 +1592,9 @@ int system_veth_add(struct device *veth, struct veth_config *cfg)
        rv = system_rtnl_call(msg);
        if (rv) {
                if (cfg->flags & VETH_OPT_PEER_NAME)
-                       D(SYSTEM, "Error adding veth '%s' with peer '%s': %d\n", veth->ifname, cfg->peer_name, rv);
+                       D(SYSTEM, "Error adding veth '%s' with peer '%s': %d", veth->ifname, cfg->peer_name, rv);
                else
-                       D(SYSTEM, "Error adding veth '%s': %d\n", veth->ifname, rv);
+                       D(SYSTEM, "Error adding veth '%s': %d", veth->ifname, rv);
        }
 
        return rv;
@@ -1712,7 +1700,7 @@ int system_vlandev_add(struct device *vlandev, struct device *dev, struct vlande
 
        rv = system_rtnl_call(msg);
        if (rv)
-               D(SYSTEM, "Error adding vlandev '%s' over '%s': %d\n", vlandev->ifname, dev->ifname, rv);
+               D(SYSTEM, "Error adding vlandev '%s' over '%s': %d", vlandev->ifname, dev->ifname, rv);
 
        return rv;
 
@@ -2259,6 +2247,16 @@ system_if_apply_settings(struct device *dev, struct device_settings *s, uint64_t
 
        apply_mask &= s->flags;
 
+       if (apply_mask & DEV_OPT_MASTER) {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
+               system_set_master(dev, s->master_ifindex);
+               if (!(apply_mask & (DEV_OPT_MACADDR | DEV_OPT_DEFAULT_MACADDR)) || dev->external)
+                       system_refresh_orig_macaddr(dev, &dev->orig_settings);
+#else
+               netifd_log_message(L_WARNING, "%s Your kernel is older than linux 6.1.0, changing DSA port conduit is not supported!", dev->ifname);
+#endif
+       }
+
        memset(&ifr, 0, sizeof(ifr));
        strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name) - 1);
        if (apply_mask & DEV_OPT_MTU) {
@@ -2347,14 +2345,6 @@ system_if_apply_settings(struct device *dev, struct device_settings *s, uint64_t
                system_set_drop_unsolicited_na(dev, s->drop_unsolicited_na ? "1" : "0");
        if (apply_mask & DEV_OPT_ARP_ACCEPT)
                system_set_arp_accept(dev, s->arp_accept ? "1" : "0");
-       if (apply_mask & DEV_OPT_MASTER) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
-               system_set_master(dev, s->master_ifindex);
-               system_refresh_orig_macaddr(dev, &dev->orig_settings);
-#else
-               netifd_log_message(L_WARNING, "%s Your kernel is older than linux 6.1.0, changing DSA port conduit is not supported!", dev->ifname);
-#endif
-       }
        system_set_ethtool_settings(dev, s);
 }
 
@@ -4409,7 +4399,7 @@ static int system_add_vxlan(const char *name, const unsigned int link, struct bl
 
        ret = system_rtnl_call(msg);
        if (ret)
-               D(SYSTEM, "Error adding vxlan '%s': %d\n", name, ret);
+               D(SYSTEM, "Error adding vxlan '%s': %d", name, ret);
 
        return ret;