diff options
Diffstat (limited to 'src/extra/ipv4.c')
| -rw-r--r-- | src/extra/ipv4.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/extra/ipv4.c b/src/extra/ipv4.c index ce101ef..d7f1f69 100644 --- a/src/extra/ipv4.c +++ b/src/extra/ipv4.c @@ -56,9 +56,9 @@ struct iphdr *nfq_ip_get_hdr(struct pkt_buff *pktb) EXPORT_SYMBOL(nfq_ip_get_hdr); /** - * nfq_ip_get_payload - get the IPv4 packet payload + * nfq_ip_set_transport_header - set transport header * \param pktb: pointer to network packet buffer - * \param iph: the pointer to the IPv4 header + * \param iph: pointer to the IPv4 header */ int nfq_ip_set_transport_header(struct pkt_buff *pktb, struct iphdr *iph) { @@ -77,8 +77,6 @@ EXPORT_SYMBOL(nfq_ip_set_transport_header); * nfq_ip_set_checksum - set IPv4 checksum * \param iph: pointer to the IPv4 header * - * \returns the checksum of the ip packet. - * * \note Call to this function if you modified the IPv4 header to update the * checksum. */ @@ -91,6 +89,17 @@ void nfq_ip_set_checksum(struct iphdr *iph) } EXPORT_SYMBOL(nfq_ip_set_checksum); +/** + * nfq_ip_mangle - mangle IPv4 packet buffer + * \param pktb: pointer to network packet buffer + * \param dataoff: offset to layer 4 header + * \param match_offset: offset to content that you want to mangle + * \param match_len: length of the existing content you want to mangle + * \param rep_buffer: pointer to data you want to use to replace current content + * \param rep_len: length of data you want to use to replace current content + * + * \note This function recalculates the IPv4 checksum (if needed). + */ int nfq_ip_mangle(struct pkt_buff *pkt, unsigned int dataoff, unsigned int match_offset, unsigned int match_len, const char *rep_buffer, unsigned int rep_len) |