ifconfig promisc

 

ifconfig promisc

调用 ioctl(skfd, SIOCSIFFLAGS, &ifr)

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net/core/dev.c     net/core/dev_mcast.c

int dev_ioctl(unsigned int cmd, void __user *arg)

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int dev_change_flags(struct net_device *dev, unsigned flags)

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void dev_set_promiscuity(struct net_device *dev, int inc)

void dev_mc_upload(struct net_device *dev)

dev->set_multicast_list(dev)

调驱动的 void smc_set_multicast_list(struct net_device *dev)   并操作硬件