diff options
Diffstat (limited to 'src/extra/tcp.c')
| -rw-r--r-- | src/extra/tcp.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/src/extra/tcp.c b/src/extra/tcp.c index d1cd79d..8038ce5 100644 --- a/src/extra/tcp.c +++ b/src/extra/tcp.c @@ -40,7 +40,7 @@ * \note You have to call nfq_ip_set_transport_header or * nfq_ip6_set_transport_header first to access the TCP header. */ -struct tcphdr *nfq_tcp_get_hdr(struct pkt_buff *pktb) +struct tcphdr __EXPORTED *nfq_tcp_get_hdr(struct pkt_buff *pktb) { if (pktb->transport_header == NULL) return NULL; @@ -51,14 +51,13 @@ struct tcphdr *nfq_tcp_get_hdr(struct pkt_buff *pktb) return (struct tcphdr *)pktb->transport_header; } -EXPORT_SYMBOL(nfq_tcp_get_hdr); /** * nfq_tcp_get_payload - get the TCP packet payload * \param tcph: pointer to the TCP header * \param pktb: pointer to user-space network packet buffer */ -void *nfq_tcp_get_payload(struct tcphdr *tcph, struct pkt_buff *pktb) +void __EXPORTED *nfq_tcp_get_payload(struct tcphdr *tcph, struct pkt_buff *pktb) { unsigned int len = tcph->doff * 4; @@ -72,47 +71,43 @@ void *nfq_tcp_get_payload(struct tcphdr *tcph, struct pkt_buff *pktb) return pktb->transport_header + len; } -EXPORT_SYMBOL(nfq_tcp_get_payload); /** * nfq_tcp_get_payload_len - get the tcp packet payload * \param tcph: pointer to the TCP header * \param pktb: pointer to user-space network packet buffer */ -unsigned int +unsigned int __EXPORTED nfq_tcp_get_payload_len(struct tcphdr *tcph, struct pkt_buff *pktb) { return pktb->tail - pktb->transport_header; } -EXPORT_SYMBOL(nfq_tcp_get_payload_len); /** * nfq_tcp_set_checksum_ipv4 - computes IPv4/TCP packet checksum * \param tcph: pointer to the TCP header * \param iph: pointer to the IPv4 header */ -void +void __EXPORTED nfq_tcp_compute_checksum_ipv4(struct tcphdr *tcph, struct iphdr *iph) { /* checksum field in header needs to be zero for calculation. */ tcph->check = 0; tcph->check = nfq_checksum_tcpudp_ipv4(iph); } -EXPORT_SYMBOL(nfq_tcp_compute_checksum_ipv4); /** * nfq_tcp_set_checksum_ipv6 - computes IPv6/TCP packet checksum * \param tcph: pointer to the TCP header * \param iph: pointer to the IPv6 header */ -void +void __EXPORTED nfq_tcp_compute_checksum_ipv6(struct tcphdr *tcph, struct ip6_hdr *ip6h) { /* checksum field in header needs to be zero for calculation. */ tcph->check = 0; tcph->check = nfq_checksum_tcpudp_ipv6(ip6h, tcph); } -EXPORT_SYMBOL(nfq_tcp_compute_checksum_ipv6); /* * The union cast uses a gcc extension to avoid aliasing problems @@ -134,7 +129,7 @@ union tcp_word_hdr { * \param tcp: pointer to a valid tcp header. * */ -int nfq_tcp_snprintf(char *buf, size_t size, const struct tcphdr *tcph) +int __EXPORTED nfq_tcp_snprintf(char *buf, size_t size, const struct tcphdr *tcph) { int ret, len = 0; @@ -177,7 +172,6 @@ int nfq_tcp_snprintf(char *buf, size_t size, const struct tcphdr *tcph) return ret; } -EXPORT_SYMBOL(nfq_tcp_snprintf); /** * nfq_tcp_mangle_ipv4 - mangle TCP/IPv4 packet buffer @@ -189,7 +183,7 @@ EXPORT_SYMBOL(nfq_tcp_snprintf); * * \note This function recalculates the IPv4 and TCP checksums for you. */ -int +int __EXPORTED nfq_tcp_mangle_ipv4(struct pkt_buff *pkt, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, unsigned int rep_len) @@ -208,7 +202,6 @@ nfq_tcp_mangle_ipv4(struct pkt_buff *pkt, return 1; } -EXPORT_SYMBOL(nfq_tcp_mangle_ipv4); /** * @} |