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diff --git a/sys/netgraph/ng_iface.c b/sys/netgraph/ng_iface.c
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2
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index e495f8a..8d80bc3 100644
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3
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--- a/sys/netgraph/ng_iface.c
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4
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+++ b/sys/netgraph/ng_iface.c
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5
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@@ -70,9 +70,11 @@
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6
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#include <sys/socket.h>
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7
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#include <sys/syslog.h>
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8
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#include <sys/libkern.h>
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9
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+#include <sys/ctype.h>
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10
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11
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#include <net/if.h>
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12
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#include <net/if_types.h>
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13
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+#include <net/if_dl.h>
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14
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#include <net/bpf.h>
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15
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#include <net/netisr.h>
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16
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#include <net/route.h>
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17
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@@ -166,6 +168,13 @@ static const struct ng_cmdlist ng_iface_cmds[] = {
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18
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},
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19
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{
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20
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NGM_IFACE_COOKIE,
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21
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+ NGM_IFACE_SET_IFNAME,
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22
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+ "setifname",
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23
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+ &ng_parse_string_type,
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24
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+ NULL
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+ },
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26
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+ {
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27
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+ NGM_IFACE_COOKIE,
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28
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NGM_IFACE_POINT2POINT,
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29
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"point2point",
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30
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NULL,
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31
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@@ -608,6 +617,10 @@ ng_iface_rcvmsg(node_p node, item_p item, hook_p lasthook)
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32
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struct ng_mesg *resp = NULL;
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33
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int error = 0;
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34
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struct ng_mesg *msg;
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35
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+ char *new_name;
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36
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+ size_t namelen, onamelen;
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37
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+ struct sockaddr_dl *sdl = NULL;
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38
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+ struct ifaddr *ifa = NULL;
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39
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40
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NGI_GET_MSG(item, msg);
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41
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switch (msg->header.typecookie) {
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42
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@@ -622,6 +635,49 @@ ng_iface_rcvmsg(node_p node, item_p item, hook_p lasthook)
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43
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strlcpy(resp->data, ifp->if_xname, IFNAMSIZ);
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44
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break;
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45
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46
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+ case NGM_IFACE_SET_IFNAME:
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47
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+
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48
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+ new_name = (char *)msg->data;
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49
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+ /* Announce the departure of the interface. */
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50
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+ //new_name[strlen(new_name)] = '\0';
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51
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+
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52
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+ /* Deny request if interface is UP */
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53
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+ if ((ifp->if_flags & IFF_UP) != 0) {
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54
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+ error = EBUSY;
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55
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+ break;
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56
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+ }
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57
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+
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58
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+ //rt_ifannouncemsg(ifp, IFAN_DEPARTURE);
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59
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+ EVENTHANDLER_INVOKE(ifnet_departure_event, ifp);
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60
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+
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61
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+ strlcpy(ifp->if_xname, new_name, sizeof(ifp->if_xname));
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62
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+ ifa = ifp->if_addr;
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63
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+ IFA_LOCK(ifa);
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64
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+ sdl = (struct sockaddr_dl *)ifa->ifa_addr;
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65
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+ namelen = strlen(new_name) + 1;
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66
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+ onamelen = sdl->sdl_nlen;
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67
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+ /*
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68
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+ * Move the address if needed. This is safe because we
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69
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+ * allocate space for a name of length IFNAMSIZ when we
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70
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+ * create this in if_attach().
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71
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+ */
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72
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+ if (namelen != onamelen) {
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73
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+ bcopy(sdl->sdl_data + onamelen,
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74
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+ sdl->sdl_data + namelen, sdl->sdl_alen);
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75
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+ }
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76
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+ bcopy(new_name, sdl->sdl_data, namelen);
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77
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+ sdl->sdl_nlen = namelen;
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78
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+ sdl = (struct sockaddr_dl *)ifa->ifa_netmask;
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79
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+ bzero(sdl->sdl_data, onamelen);
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80
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+ while (namelen != 0)
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81
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+ sdl->sdl_data[--namelen] = 0xff;
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82
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+ IFA_UNLOCK(ifa);
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83
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+
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84
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+ EVENTHANDLER_INVOKE(ifnet_arrival_event, ifp);
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85
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+ /* Announce the return of the interface. */
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86
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+ //rt_ifannouncemsg(ifp, IFAN_ARRIVAL);
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87
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+ break;
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88
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+
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89
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case NGM_IFACE_POINT2POINT:
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90
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case NGM_IFACE_BROADCAST:
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91
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{
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92
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@@ -699,9 +755,11 @@ ng_iface_rcvmsg(node_p node, item_p item, hook_p lasthook)
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93
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switch (msg->header.cmd) {
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94
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case NGM_LINK_IS_UP:
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95
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ifp->if_drv_flags |= IFF_DRV_RUNNING;
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96
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+ if_link_state_change(ifp, LINK_STATE_UP);
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97
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break;
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98
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case NGM_LINK_IS_DOWN:
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99
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ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
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100
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+ if_link_state_change(ifp, LINK_STATE_DOWN);
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101
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break;
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102
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default:
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103
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break;
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104
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diff --git a/sys/netgraph/ng_iface.h b/sys/netgraph/ng_iface.h
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105
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index a78d8cb..fd4b751 100644
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106
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--- a/sys/netgraph/ng_iface.h
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107
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+++ b/sys/netgraph/ng_iface.h
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108
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@@ -70,6 +70,7 @@ enum {
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109
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NGM_IFACE_POINT2POINT,
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110
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NGM_IFACE_BROADCAST,
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111
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NGM_IFACE_GET_IFINDEX,
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112
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+ NGM_IFACE_SET_IFNAME,
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113
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};
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114
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115
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#define MTAG_NGIF NGM_IFACE_COOKIE
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