struct event_socket {
struct uloop_fd uloop;
struct nl_sock *sock;
- struct nl_cb *cb;
};
static int sock_ioctl = -1;
handler_nl_event(struct uloop_fd *u, unsigned int events)
{
struct event_socket *ev = container_of(u, struct event_socket, uloop);
- nl_recvmsgs(ev->sock, ev->cb);
+ nl_recvmsgs_default(ev->sock);
}
static struct nl_sock *
ev->uloop.fd = nl_socket_get_fd(ev->sock);
ev->uloop.cb = cb;
- uloop_fd_add(&ev->uloop, ULOOP_READ | ULOOP_EDGE_TRIGGER);
+ if (uloop_fd_add(&ev->uloop, ULOOP_READ))
+ return false;
+
return true;
}
create_event_socket(struct event_socket *ev, int protocol,
int (*cb)(struct nl_msg *msg, void *arg))
{
- // Prepare socket for link events
- ev->cb = nl_cb_alloc(NL_CB_DEFAULT);
- if (!ev->cb)
+ if (!create_raw_event_socket(ev, protocol, 0, handler_nl_event))
return false;
- nl_cb_set(ev->cb, NL_CB_VALID, NL_CB_CUSTOM, cb, NULL);
+ // Install the valid custom callback handler
+ nl_socket_modify_cb(ev->sock, NL_CB_VALID, NL_CB_CUSTOM, cb, NULL);
- return create_raw_event_socket(ev, protocol, 0, handler_nl_event);
+ // Disable sequence number checking on event sockets
+ nl_socket_disable_seq_check(ev->sock);
+
+ // Increase rx buffer size to 65K on event sockets
+ if (nl_socket_set_buffer_size(ev->sock, 65535, 0))
+ return false;
+
+ return true;
}
int system_init(void)
static struct event_socket hotplug_event;
sock_ioctl = socket(AF_LOCAL, SOCK_DGRAM, 0);
- fcntl(sock_ioctl, F_SETFD, fcntl(sock_ioctl, F_GETFD) | FD_CLOEXEC);
+ system_fd_set_cloexec(sock_ioctl);
// Prepare socket for routing / address control
sock_rtnl = create_socket(NETLINK_ROUTE, 0);
system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev->ifname, val);
}
+#ifndef IFF_LOWER_UP
+#define IFF_LOWER_UP 0x10000
+#endif
+
// Evaluate netlink messages
static int cb_rtnl_event(struct nl_msg *msg, void *arg)
{
struct ifinfomsg *ifi = NLMSG_DATA(nh);
struct nlattr *nla[__IFLA_MAX];
- if (nh->nlmsg_type != RTM_DELLINK && nh->nlmsg_type != RTM_NEWLINK)
+ if (nh->nlmsg_type != RTM_NEWLINK)
goto out;
nlmsg_parse(nh, sizeof(*ifi), nla, __IFLA_MAX - 1, NULL);
if (!nla[IFLA_IFNAME])
goto out;
- struct device *dev = device_get(RTA_DATA(nla[IFLA_IFNAME]), false);
+ struct device *dev = device_get(nla_data(nla[IFLA_IFNAME]), false);
if (!dev)
goto out;
- dev->ifindex = ifi->ifi_index;
- /* TODO: parse link status */
+ device_set_ifindex(dev, ifi->ifi_index);
+ device_set_link(dev, ifi->ifi_flags & IFF_LOWER_UP ? true : false);
out:
return 0;
if (dev->external)
return;
- dev->ifindex = system_if_resolve(dev);
+ device_set_ifindex(dev, system_if_resolve(dev));
if (!dev->ifindex)
return;
{
system_if_get_settings(dev, &dev->orig_settings);
system_if_apply_settings(dev, &dev->settings);
- dev->ifindex = system_if_resolve(dev);
+ device_set_ifindex(dev, system_if_resolve(dev));
return system_if_flags(dev->ifname, IFF_UP, 0);
}
return ret;
}
+struct if_check_data {
+ struct device *dev;
+ int pending;
+ int ret;
+};
+
+static int cb_if_check_valid(struct nl_msg *msg, void *arg)
+{
+ struct nlmsghdr *nh = nlmsg_hdr(msg);
+ struct ifinfomsg *ifi = NLMSG_DATA(nh);
+ struct if_check_data *chk = (struct if_check_data *)arg;
+
+ if (nh->nlmsg_type != RTM_NEWLINK)
+ return NL_SKIP;
+
+ device_set_present(chk->dev, ifi->ifi_index > 0 ? true : false);
+ device_set_link(chk->dev, ifi->ifi_flags & IFF_LOWER_UP ? true : false);
+
+ return NL_OK;
+}
+
+static int cb_if_check_ack(struct nl_msg *msg, void *arg)
+{
+ struct if_check_data *chk = (struct if_check_data *)arg;
+ chk->pending = 0;
+ return NL_STOP;
+}
+
+static int cb_if_check_error(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg)
+{
+ struct if_check_data *chk = (struct if_check_data *)arg;
+
+ device_set_present(chk->dev, false);
+ device_set_link(chk->dev, false);
+ chk->pending = err->error;
+
+ return NL_STOP;
+}
+
int system_if_check(struct device *dev)
{
- device_set_present(dev, (system_if_resolve(dev) > 0));
- return 0;
+ struct nl_cb *cb = nl_cb_alloc(NL_CB_DEFAULT);
+ struct nl_msg *msg;
+ struct ifinfomsg ifi = {
+ .ifi_family = AF_UNSPEC,
+ .ifi_index = 0,
+ };
+ struct if_check_data chk = {
+ .dev = dev,
+ .pending = 1,
+ };
+ int ret = 1;
+
+ msg = nlmsg_alloc_simple(RTM_GETLINK, 0);
+ if (!msg || nlmsg_append(msg, &ifi, sizeof(ifi), 0) ||
+ nla_put_string(msg, IFLA_IFNAME, dev->ifname))
+ goto out;
+
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, cb_if_check_valid, &chk);
+ nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, cb_if_check_ack, &chk);
+ nl_cb_err(cb, NL_CB_CUSTOM, cb_if_check_error, &chk);
+
+ nl_send_auto_complete(sock_rtnl, msg);
+ while (chk.pending > 0)
+ nl_recvmsgs(sock_rtnl, cb);
+
+ nlmsg_free(msg);
+ ret = chk.pending;
+
+out:
+ nl_cb_put(cb);
+ return ret;
}
struct device *
char buf[64], *s;
void *c;
int dir_fd;
- uint64_t val = 0;
snprintf(buf, sizeof(buf), "/sys/class/net/%s", dev->ifname);
dir_fd = open(buf, O_DIRECTORY);
- if (read_uint64_file(dir_fd, "carrier", &val))
- blobmsg_add_u8(b, "link", !!val);
-
memset(&ecmd, 0, sizeof(ecmd));
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, dev->ifname);
struct rtmsg rtm = {
.rtm_family = (alen == 4) ? AF_INET : AF_INET6,
.rtm_dst_len = route->mask,
+ .rtm_src_len = route->sourcemask,
.rtm_table = (table < 256) ? table : RT_TABLE_UNSPEC,
.rtm_protocol = (route->flags & DEVADDR_KERNEL) ? RTPROT_KERNEL : RTPROT_STATIC,
.rtm_scope = scope,
if (route->mask)
nla_put(msg, RTA_DST, alen, &route->addr);
+ if (route->sourcemask)
+ nla_put(msg, RTA_SRC, alen, &route->source);
+
if (route->metric > 0)
nla_put_u32(msg, RTA_PRIORITY, route->metric);
projects / project / netifd.git / blobdiff