diff options
Diffstat (limited to 'lib/libnetgraph/sock.c')
| -rw-r--r-- | lib/libnetgraph/sock.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/lib/libnetgraph/sock.c b/lib/libnetgraph/sock.c index b8bb9e65a364..c5a82341162a 100644 --- a/lib/libnetgraph/sock.c +++ b/lib/libnetgraph/sock.c @@ -48,6 +48,9 @@ #include "netgraph.h" #include "internal.h" +/* The socket node type KLD */ +#define NG_SOCKET_KLD "ng_socket.ko" + /* * Create a socket type node and give it the supplied name. * Return data and control sockets corresponding to the node. @@ -65,14 +68,28 @@ NgMkSockNode(const char *name, int *csp, int *dsp) if (name && *name == 0) name = NULL; - /* Create control socket; this also creates the netgraph node */ + /* Create control socket; this also creates the netgraph node. + If we get a EPROTONOSUPPORT then the socket node type is + not loaded, so load it and try again. */ if ((cs = socket(AF_NETGRAPH, SOCK_DGRAM, NG_CONTROL)) < 0) { + if (errno == EPROTONOSUPPORT) { + if (kldload(NG_SOCKET_KLD) < 0) { + errnosv = errno; + if (_gNgDebugLevel >= 1) + NGLOG("can't load %s", NG_SOCKET_KLD); + goto errout; + } + cs = socket(AF_NETGRAPH, SOCK_DGRAM, NG_CONTROL); + if (cs >= 0) + goto gotNode; + } errnosv = errno; if (_gNgDebugLevel >= 1) NGLOG("socket"); goto errout; } +gotNode: /* Assign the node the desired name, if any */ if (name != NULL) { u_char sbuf[NG_NODELEN + 3]; |