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/usr/src/xtables-addons-3.0/extensions/xt_ipv4options.h is in xtables-addons-dkms 3.0-0.1.

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#ifndef _LINUX_NETFILTER_XT_IPV4OPTIONS_H
#define _LINUX_NETFILTER_XT_IPV4OPTIONS_H 1

/* IPv4 allows for a 5-bit option number - 32 options */

/**
 * %XT_V4OPTS_ALL:	all options in @map must be present (respecting @invert)
 * %XT_V4OPTS_ANY:	any of the option in @map
 */
enum xt_ipv4options_flags {
	XT_V4OPTS_ALL = 1 << 0,
	XT_V4OPTS_ANY = 1 << 1,
};

/**
 * @map:	bitmask of options that should appear
 * @invert:	inversion map
 * @flags:	see above
 */
struct xt_ipv4options_mtinfo1 {
	__u32 map;
	__u32 invert;
	__u8 flags;
};

#endif /* _LINUX_NETFILTER_XT_IPV4OPTIONS_H */