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sf_ioctl_func

Declaration

typedef errno_t (*sf_ioctl_func)(void *cookie, socket_t so, unsigned long request, const char *argp);

Parameters

  • cookie:

    Cookie value specified when the filter attach was called.

  • so:

    The socket the filter is attached to.

  • request:

    The ioctl name.

  • argp:

    A pointer to the ioctl parameter.

Return Value

Return: 0 - The caller will continue with normal processing of this ioctl. EJUSTRETURN - The caller will return with a value of 0 (no error) from that point without further processing or propogating the ioctl. Anything Else - The caller will stop processing and return this error.

Discussion

sf_ioctl_func is called before performing an ioctl on a socket.

All undefined ioctls are reserved for future use by Apple. If you need to communicate with your kext using an ioctl, please use SIOCSIFKPI and SIOCGIFKPI.