diff options
Diffstat (limited to 'sys/netgraph/ng_iface.c')
| -rw-r--r-- | sys/netgraph/ng_iface.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/sys/netgraph/ng_iface.c b/sys/netgraph/ng_iface.c index 6c18d2a..94c8c05c 100644 --- a/sys/netgraph/ng_iface.c +++ b/sys/netgraph/ng_iface.c @@ -70,9 +70,11 @@ #include <sys/socket.h> #include <sys/syslog.h> #include <sys/libkern.h> +#include <sys/ctype.h> #include <net/if.h> #include <net/if_types.h> +#include <net/if_dl.h> #include <net/bpf.h> #include <net/netisr.h> #include <net/route.h> @@ -166,6 +168,13 @@ static const struct ng_cmdlist ng_iface_cmds[] = { }, { NGM_IFACE_COOKIE, + NGM_IFACE_SET_IFNAME, + "setifname", + &ng_parse_string_type, + NULL + }, + { + NGM_IFACE_COOKIE, NGM_IFACE_POINT2POINT, "point2point", NULL, @@ -608,6 +617,10 @@ ng_iface_rcvmsg(node_p node, item_p item, hook_p lasthook) struct ng_mesg *resp = NULL; int error = 0; struct ng_mesg *msg; + char *new_name; + size_t namelen, onamelen; + struct sockaddr_dl *sdl = NULL; + struct ifaddr *ifa = NULL; NGI_GET_MSG(item, msg); switch (msg->header.typecookie) { @@ -622,6 +635,49 @@ ng_iface_rcvmsg(node_p node, item_p item, hook_p lasthook) strlcpy(resp->data, ifp->if_xname, IFNAMSIZ); break; + case NGM_IFACE_SET_IFNAME: + + new_name = (char *)msg->data; + /* Announce the departure of the interface. */ + //new_name[strlen(new_name)] = '\0'; + + /* Deny request if interface is UP */ + if ((ifp->if_flags & IFF_UP) != 0) { + error = EBUSY; + break; + } + + //rt_ifannouncemsg(ifp, IFAN_DEPARTURE); + EVENTHANDLER_INVOKE(ifnet_departure_event, ifp); + + strlcpy(ifp->if_xname, new_name, sizeof(ifp->if_xname)); + ifa = ifp->if_addr; + IFA_LOCK(ifa); + sdl = (struct sockaddr_dl *)ifa->ifa_addr; + namelen = strlen(new_name) + 1; + onamelen = sdl->sdl_nlen; + /* + * Move the address if needed. This is safe because we + * allocate space for a name of length IFNAMSIZ when we + * create this in if_attach(). + */ + if (namelen != onamelen) { + bcopy(sdl->sdl_data + onamelen, + sdl->sdl_data + namelen, sdl->sdl_alen); + } + bcopy(new_name, sdl->sdl_data, namelen); + sdl->sdl_nlen = namelen; + sdl = (struct sockaddr_dl *)ifa->ifa_netmask; + bzero(sdl->sdl_data, onamelen); + while (namelen != 0) + sdl->sdl_data[--namelen] = 0xff; + IFA_UNLOCK(ifa); + + EVENTHANDLER_INVOKE(ifnet_arrival_event, ifp); + /* Announce the return of the interface. */ + //rt_ifannouncemsg(ifp, IFAN_ARRIVAL); + break; + case NGM_IFACE_POINT2POINT: case NGM_IFACE_BROADCAST: { @@ -699,9 +755,11 @@ ng_iface_rcvmsg(node_p node, item_p item, hook_p lasthook) switch (msg->header.cmd) { case NGM_LINK_IS_UP: ifp->if_drv_flags |= IFF_DRV_RUNNING; + //if_link_state_change(ifp, LINK_STATE_UP); break; case NGM_LINK_IS_DOWN: ifp->if_drv_flags &= ~IFF_DRV_RUNNING; + //if_link_state_change(ifp, LINK_STATE_DOWN); break; default: break; |
