From d25e199483a2ee3dfcd1da17ec8d4ee077d79736 Mon Sep 17 00:00:00 2001 From: "/C=DE/ST=Berlin/L=Berlin/O=Netfilter Project/OU=Development/CN=pablo/emailAddress=pablo@netfilter.org" Date: Sun, 16 Oct 2005 19:44:46 +0000 Subject: Major changes, this library isn't libnfnetlink_conntrack anymore. We provide an high level interface that abstracts from the netlink sockets. Now users don't need to know anything about them. --- .../extensions/libnetfilter_conntrack_sctp.c | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 _conntrack/extensions/libnetfilter_conntrack_sctp.c (limited to '_conntrack/extensions/libnetfilter_conntrack_sctp.c') diff --git a/_conntrack/extensions/libnetfilter_conntrack_sctp.c b/_conntrack/extensions/libnetfilter_conntrack_sctp.c new file mode 100644 index 0000000..a42a6c8 --- /dev/null +++ b/_conntrack/extensions/libnetfilter_conntrack_sctp.c @@ -0,0 +1,69 @@ +/* + * (C) 2005 by Pablo Neira Ayuso + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ +#include +#include +#include +#include +#include /* For htons */ +#include +#include + +void parse_proto(struct nfattr *cda[], struct nfct_tuple *tuple) +{ + if (cda[CTA_PROTO_SRC_PORT-1]) + tuple->l4src.sctp.port = + *(u_int16_t *)NFA_DATA(cda[CTA_PROTO_SRC_PORT-1]); + if (cda[CTA_PROTO_DST_PORT-1]) + tuple->l4dst.sctp.port = + *(u_int16_t *)NFA_DATA(cda[CTA_PROTO_DST_PORT-1]); +} + +void parse_protoinfo(struct nfattr *cda[], struct nfct_conntrack *ct) +{ +/* if (cda[CTA_PROTOINFO_SCTP_STATE-1]) + ct->protoinfo.sctp.state = + *(u_int8_t *)NFA_DATA(cda[CTA_PROTOINFO_SCTP_STATE-1]); +*/ +} + +int print_protoinfo(char *buf, union nfct_protoinfo *protoinfo) +{ +/* fprintf(stdout, "%s ", states[protoinfo->sctp.state]); */ + return 0; +} + +int print_proto(char *buf, struct nfct_tuple *tuple) +{ + return(sprintf(buf, "sport=%u dport=%u ", htons(tuple->l4src.sctp.port), + htons(tuple->l4dst.sctp.port))); +} + +static struct nfct_proto sctp = { + .name = "sctp", + .protonum = IPPROTO_SCTP, + .parse_proto = parse_proto, + .parse_protoinfo = parse_protoinfo, + .print_proto = print_proto, + .print_protoinfo = print_protoinfo, + .version = LIBNETFILTER_CONNTRACK_VERSION +}; + +void __attribute__ ((constructor)) init(void); +void __attribute__ ((destructor)) fini(void); + +void init(void) +{ + nfct_register_proto(&sctp); +} + +void fini(void) +{ + nfct_unregister_proto(&sctp); +} -- cgit v1.2.3