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authorDuncan Roe <duncan_roe@optusnet.com.au>2019-12-09 11:05:05 +1100
committerPablo Neira Ayuso <pablo@netfilter.org>2019-12-09 22:15:06 +0100
commit3223e4e26f21e94fb9f2304cce0b4115939669ec (patch)
treeb8c87c92f96d565be9d8ea0fcbff238067777f8c /src
parent114a9f766c1ee45fb4c0f4d13b96b965ddfad08a (diff)
src: doc: Update sample code to agree with documentation
Updated: src/nlmsg.c: Update nfq_nlmsg_verdict_put_pkt() sample code to use pktb_len() as recommended in src/extra/pktbuff.c, pktb_len() doco Signed-off-by: Duncan Roe <duncan_roe@optusnet.com.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src')
-rw-r--r--src/nlmsg.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/nlmsg.c b/src/nlmsg.c
index c40a9e4..c950110 100644
--- a/src/nlmsg.c
+++ b/src/nlmsg.c
@@ -90,14 +90,13 @@ EXPORT_SYMBOL
pktb = pktb_alloc(AF_INET, payload, plen, 255);
// (decide that this packet needs mangling)
nfq_udp_mangle_ipv4(pktb, match_offset, match_len, rep_data, rep_len);
- // Update IP Datagram length
- plen += rep_len - match_len;
+ // nfq_udp_mangle_ipv4 updates packet length, no need to track locally
// Eventually nfq_send_verdict (line 39) gets called
// The received packet may or may not have been modified.
// Add this code before nfq_nlmsg_verdict_put call:
if (pktb_mangled(pktb))
- nfq_nlmsg_verdict_put_pkt(nlh, pktb_data(pktb), plen);
+ nfq_nlmsg_verdict_put_pkt(nlh, pktb_data(pktb), pktb_len(pktb));
\endverbatim
*/
void nfq_nlmsg_verdict_put_pkt(struct nlmsghdr *nlh, const void *pkt,