diff options
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 81ab6e1..39d1634 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -854,7 +854,8 @@ udp_output(inp, m, addr, control, td) /* * Calculate data length and get a mbuf for UDP, IP, and possible - * link-layer headers. + * link-layer headers. Immediate slide the data pointer back forward + * since we won't use that space at this layer. */ M_PREPEND(m, sizeof(struct udpiphdr) + max_linkhdr, M_DONTWAIT); if (m == NULL) { @@ -863,6 +864,7 @@ udp_output(inp, m, addr, control, td) } m->m_data += max_linkhdr; m->m_len -= max_linkhdr; + m->m_pkthdr.len -= max_linkhdr; /* * Fill in mbuf with extended UDP header |
