Date: Fri, 10 Sep 2004 09:11:04 +0200 From: Andreas Kohn <andreas.kohn@gmx.net> To: vxp <vxp@digital-security.org> Cc: freebsd-hackers@freebsd.org Subject: Re: header file related question Message-ID: <1094800263.838.2.camel@klamath.ankon.de.eu.org> In-Reply-To: <20040909203816.J3744@digital-security.org> References: <20040909203816.J3744@digital-security.org>
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--=-3fscoZyHCA3OFp3rz3PA Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2004-09-10 at 02:38, vxp wrote: > hi, >=20 > i realize it's most likely a stupid question, but try not to be too hard > on me please - i'm trying to learn :) >=20 > i'm experimenting with the kernel's source, and i'm not quite sure how to > find what all the header files are that i need, for the stuff i'd like to > do.. how do i track down what header files i need to #include in my stuff= ? >=20 > for instance, i'm trying to modify icmp_input() (found in > /sys/netinet/ip_icmp.c) and load the new function via a kernel module. >=20 > so, i copied all the #include's from /sys/netinet/ip_icmp.c and only have > the icmp_input() function (unmodified right now, from the form i found > it), the header files from the original ip_icmp, and a main() that > simply returns 0. doesn't want to compile, with errors about header files > such as: > --------------- > In file included from icmp.c:37: > /usr/include/netinet/in_var.h:50: error: field `ia_ifa' has incomplete > type > In file included from /usr/include/netinet/in_var.h:238, > from icmp.c:37: > /usr/include/netinet6/in6_var.h:103: error: field `ia_ifa' has incomplete > type > --------------- > i realize that it's most likely because i didn't #include something else = i > need.. but how come /sys/netinet/ip_icmp.c compiles, then? because this > file is basically that, with all functions but icmp_input removed, and a > main() that does nothing.. >=20 > so.. sorry for the long post. > but please tell me how do i find out what header files i need ? :) >=20 > thanks. >=20 Hi, just guessing: Did you compile with -D_KERNEL? HTH, Andreas --=-3fscoZyHCA3OFp3rz3PA Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQBBQVOHYucd7Ow1ygwRAmsVAJwOyHcdFiXvt96EX2265KXbnY6NVwCffF9P MbWvGImCCygc+iu/xzSjI7Q= =tXsj -----END PGP SIGNATURE----- --=-3fscoZyHCA3OFp3rz3PA--
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