Try this patch, it worked for me (i only had the skb_copy error) but look
at it, you should easily adapt it :)
--- Regis "HPReg" DUCHESNE, Engineering Student at ***** ******** ***** E-Mail > regis@via.ecp.fr W3 > http://www.via.ecp.fr/~regis/diff -u ./linux/net/netsyms.c.clean ./linux/net/netsyms.c --- ./linux/net/netsyms.c.clean Tue Dec 3 05:06:10 1996 +++ ./linux/net/netsyms.c Tue Dec 3 05:39:24 1996 @@ -3,6 +3,10 @@ * * Symbol table for the linux networking subsystem. Moved here to * make life simpler in ksyms.c. + * + * Fixes: + * Gregory Maxwell : Added skb_copy. + * */ #include <linux/config.h> @@ -84,6 +88,7 @@ X(sock_alloc_send_skb), X(skb_recv_datagram), X(skb_free_datagram), + X(skb_copy), X(skb_copy_datagram), X(skb_copy_datagram_iovec), X(datagram_select),