小编use*_*787的帖子

我想要实现的任务实际上非常简单（将字符串“TEST”多播到用户态守护程序），但内核模块无法编译。它因错误而停止：

passing argument 4 of \xe2\x80\x98genlmsg_multicast_allns\xe2\x80\x99 makes integer from pointer without a cast [enabled by default]\n

但不应该只是我定义的多播组吗？

这是“澄清”的代码：

#include <linux/module.h>\n#include <net/sock.h>\n#include <linux/netlink.h>\n#include <linux/skbuff.h>\n#include <linux/string.h>\n#include <net/netlink.h>\n#include <net/genetlink.h>\n\nstruct sock *nl_sk = NULL;\n\nstatic void daemon(void){\n        struct sk_buff *skb;\n        void* msg_head;\n        unsigned char *msg;\n\n        struct genl_family my_genl_family = {\n                .id = GENL_ID_GENERATE,\n                .hdrsize = 0,\n                .name = "family_name",\n                .version = 1,\n                .maxattr = 5\n        };\n\n        struct genl_multicast_group my_mc_group = {\n                .name = "mc_group",\n        };\n\n\n        msg = "TEST";\n        skb = genlmsg_new(NLMSG_GOODSIZE, …