#include "device.h"
#include "system.h"
+struct event_socket {
+ struct uloop_fd uloop;
+ struct nl_sock *sock;
+ struct nl_cb *cb;
+};
+
static int sock_ioctl = -1;
static struct nl_sock *sock_rtnl = NULL;
-static struct nl_sock *sock_rtnl_event = NULL;
-static void handler_rtnl_event(struct uloop_fd *u, unsigned int events);
static int cb_rtnl_event(struct nl_msg *msg, void *arg);
-static struct uloop_fd rtnl_event = {.cb = handler_rtnl_event};
-static struct nl_cb *nl_cb_rtnl_event;
-int system_init(void)
+static void
+handler_nl_event(struct uloop_fd *u, unsigned int events)
{
- sock_ioctl = socket(AF_LOCAL, SOCK_DGRAM, 0);
- fcntl(sock_ioctl, F_SETFD, fcntl(sock_ioctl, F_GETFD) | FD_CLOEXEC);
+ struct event_socket *ev = container_of(u, struct event_socket, uloop);
+ nl_recvmsgs(ev->sock, ev->cb);
+}
- // Prepare socket for routing / address control
- sock_rtnl = nl_socket_alloc();
- if (!sock_rtnl)
- return -1;
+static struct nl_sock *
+create_socket(int protocol)
+{
+ struct nl_sock *sock;
+
+ sock = nl_socket_alloc();
+ if (!sock)
+ return NULL;
- if (nl_connect(sock_rtnl, NETLINK_ROUTE))
- goto error_free_sock;
+ if (nl_connect(sock, protocol))
+ return NULL;
+
+ return sock;
+}
+static bool
+create_event_socket(struct event_socket *ev, int protocol,
+ int (*cb)(struct nl_msg *msg, void *arg))
+{
// Prepare socket for link events
- nl_cb_rtnl_event = nl_cb_alloc(NL_CB_DEFAULT);
- if (!nl_cb_rtnl_event)
- goto error_free_sock;
+ ev->cb = nl_cb_alloc(NL_CB_DEFAULT);
+ if (!ev->cb)
+ return false;
- nl_cb_set(nl_cb_rtnl_event, NL_CB_VALID, NL_CB_CUSTOM,
- cb_rtnl_event, NULL);
+ nl_cb_set(ev->cb, NL_CB_VALID, NL_CB_CUSTOM, cb, NULL);
- sock_rtnl_event = nl_socket_alloc();
- if (!sock_rtnl_event)
- goto error_free_cb;
+ ev->sock = create_socket(protocol);
+ if (!ev->sock)
+ return false;
- if (nl_connect(sock_rtnl_event, NETLINK_ROUTE))
- goto error_free_event;
+ ev->uloop.fd = nl_socket_get_fd(ev->sock);
+ ev->uloop.cb = handler_nl_event;
+ uloop_fd_add(&ev->uloop, ULOOP_READ | ULOOP_EDGE_TRIGGER);
+ return true;
+}
- // Receive network link events form kernel
- nl_socket_add_membership(sock_rtnl_event, RTNLGRP_LINK);
+int system_init(void)
+{
+ static struct event_socket rtnl_event;
- rtnl_event.fd = nl_socket_get_fd(sock_rtnl_event);
- uloop_fd_add(&rtnl_event, ULOOP_READ | ULOOP_EDGE_TRIGGER);
+ sock_ioctl = socket(AF_LOCAL, SOCK_DGRAM, 0);
+ fcntl(sock_ioctl, F_SETFD, fcntl(sock_ioctl, F_GETFD) | FD_CLOEXEC);
- return 0;
+ // Prepare socket for routing / address control
+ sock_rtnl = create_socket(NETLINK_ROUTE);
+ if (!sock_rtnl)
+ return -1;
-error_free_event:
- nl_socket_free(sock_rtnl_event);
- sock_rtnl_event = NULL;
-error_free_cb:
- nl_cb_put(nl_cb_rtnl_event);
- nl_cb_rtnl_event = NULL;
-error_free_sock:
- nl_socket_free(sock_rtnl);
- sock_rtnl = NULL;
- return -1;
-}
+ if (!create_event_socket(&rtnl_event, NETLINK_ROUTE, cb_rtnl_event))
+ return -1;
-// If socket is ready for reading parse netlink events
-static void handler_rtnl_event(struct uloop_fd *u, unsigned int events)
-{
- nl_recvmsgs(sock_rtnl_event, nl_cb_rtnl_event);
+ // Receive network link events form kernel
+ nl_socket_add_membership(rtnl_event.sock, RTNLGRP_LINK);
+
+ return 0;
}
static void system_set_sysctl(const char *path, const char *val)
close(fd);
}
-static void system_set_disable_ipv6(struct device *dev, const char *val)
+static void system_set_dev_sysctl(const char *path, const char *device, const char *val)
{
- char buf[256];
+ static char buf[256];
- snprintf(buf, sizeof(buf), "/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev->ifname);
- system_set_sysctl(buf, "0");
+ snprintf(buf, sizeof(buf), path, val);
+ system_set_sysctl(buf, val);
+}
+
+static void system_set_disable_ipv6(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev->ifname, val);
}
// Evaluate netlink messages
*/
void system_if_clear_state(struct device *dev)
{
- char buf[256];
+ static char buf[256];
char *bridge;
+ if (dev->external)
+ return;
+
dev->ifindex = system_if_resolve(dev);
if (!dev->ifindex)
return;
args[1] = sec_to_jiffies(cfg->forward_delay);
system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
+ bridge->ifname, cfg->igmp_snoop ? "1" : "0");
+
if (cfg->flags & BRIDGE_OPT_AGEING_TIME) {
args[0] = BRCTL_SET_AGEING_TIME;
args[1] = sec_to_jiffies(cfg->ageing_time);
return system_vlan(dev, -1);
}
-int system_if_up(struct device *dev)
+static void
+system_if_apply_settings(struct device *dev)
{
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name));
+ if (dev->flags & DEV_OPT_MTU) {
+ ifr.ifr_mtu = dev->mtu;
+ ioctl(sock_ioctl, SIOCSIFMTU, &ifr);
+ }
+ if (dev->flags & DEV_OPT_TXQUEUELEN) {
+ ifr.ifr_qlen = dev->txqueuelen;
+ ioctl(sock_ioctl, SIOCSIFTXQLEN, &ifr);
+ }
+ if (dev->flags & DEV_OPT_MACADDR) {
+ memcpy(&ifr.ifr_hwaddr, dev->macaddr, sizeof(dev->macaddr));
+ ioctl(sock_ioctl, SIOCSIFHWADDR, &ifr);
+ }
+
dev->ifindex = system_if_resolve(dev);
+}
+
+int system_if_up(struct device *dev)
+{
+ system_if_apply_settings(dev);
return system_if_flags(dev->ifname, IFF_UP, 0);
}
.ifa_index = dev->ifindex,
};
- struct nl_msg *msg = nlmsg_alloc_simple(cmd, 0);
+ struct nl_msg *msg;
+
+ dev = addr->device;
+ if (dev) {
+ if (!dev->ifindex)
+ return -1;
+
+ ifa.ifa_index = dev->ifindex;
+ }
+
+ msg = nlmsg_alloc_simple(cmd, 0);
if (!msg)
return -1;
int alen = ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4) ? 4 : 16;
bool have_gw;
unsigned int flags = 0;
+ int ifindex = dev->ifindex;
if (alen == 4)
have_gw = !!route->nexthop.in.s_addr;
.rtm_scope = scope,
.rtm_type = (cmd == RTM_DELROUTE) ? 0: RTN_UNICAST,
};
+ struct nl_msg *msg;
if (cmd == RTM_NEWROUTE)
flags |= NLM_F_CREATE | NLM_F_REPLACE;
- struct nl_msg *msg = nlmsg_alloc_simple(cmd, flags);
+ dev = route->device;
+ if (dev) {
+ if (!dev->ifindex)
+ return -1;
+
+ ifindex = dev->ifindex;
+ }
+
+ msg = nlmsg_alloc_simple(cmd, flags);
if (!msg)
return -1;
nla_put(msg, RTA_GATEWAY, alen, &route->nexthop);
if (route->flags & DEVADDR_DEVICE)
- nla_put_u32(msg, RTA_OIF, dev->ifindex);
+ nla_put_u32(msg, RTA_OIF, ifindex);
return system_rtnl_call(msg);
}
projects / project / netifd.git / blobdiff