svn commit: r250766 - head/sys/net
Alexander V. Chernikov
melifaro at FreeBSD.org
Sat May 18 08:14:22 UTC 2013
Author: melifaro
Date: Sat May 18 08:14:21 2013
New Revision: 250766
URL: http://svnweb.freebsd.org/changeset/base/250766
Log:
Use separate function to update mbuf checksum flags instead of
duplicating the same code in different places.
MFC after: 2 weeks
Modified:
head/sys/net/if_ethersubr.c
Modified: head/sys/net/if_ethersubr.c
==============================================================================
--- head/sys/net/if_ethersubr.c Sat May 18 07:16:20 2013 (r250765)
+++ head/sys/net/if_ethersubr.c Sat May 18 08:14:21 2013 (r250766)
@@ -141,6 +141,22 @@ static MALLOC_DEFINE(M_ARPCOM, "arpcom",
#define senderr(e) do { error = (e); goto bad;} while (0)
+static void
+update_mbuf_csumflags(struct mbuf *src, struct mbuf *dst)
+{
+ int csum_flags = 0;
+
+ if (src->m_pkthdr.csum_flags & CSUM_IP)
+ csum_flags |= (CSUM_IP_CHECKED|CSUM_IP_VALID);
+ if (src->m_pkthdr.csum_flags & CSUM_DELAY_DATA)
+ csum_flags |= (CSUM_DATA_VALID|CSUM_PSEUDO_HDR);
+ if (src->m_pkthdr.csum_flags & CSUM_SCTP)
+ csum_flags |= CSUM_SCTP_VALID;
+ dst->m_pkthdr.csum_flags |= csum_flags;
+ if (csum_flags & CSUM_DATA_VALID)
+ dst->m_pkthdr.csum_data = 0xffff;
+}
+
/*
* Ethernet output routine.
* Encapsulate a packet of type family for the local net.
@@ -300,15 +316,7 @@ ether_output(struct ifnet *ifp, struct m
}
if (lle != NULL && (lle->la_flags & LLE_IFADDR)) {
- int csum_flags = 0;
- if (m->m_pkthdr.csum_flags & CSUM_IP)
- csum_flags |= (CSUM_IP_CHECKED|CSUM_IP_VALID);
- if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA)
- csum_flags |= (CSUM_DATA_VALID|CSUM_PSEUDO_HDR);
- if (m->m_pkthdr.csum_flags & CSUM_SCTP)
- csum_flags |= CSUM_SCTP_VALID;
- m->m_pkthdr.csum_flags |= csum_flags;
- m->m_pkthdr.csum_data = 0xffff;
+ update_mbuf_csumflags(m, m);
return (if_simloop(ifp, m, dst->sa_family, 0));
}
@@ -341,15 +349,6 @@ ether_output(struct ifnet *ifp, struct m
*/
if ((ifp->if_flags & IFF_SIMPLEX) && loop_copy &&
((t = pf_find_mtag(m)) == NULL || !t->routed)) {
- int csum_flags = 0;
-
- if (m->m_pkthdr.csum_flags & CSUM_IP)
- csum_flags |= (CSUM_IP_CHECKED|CSUM_IP_VALID);
- if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA)
- csum_flags |= (CSUM_DATA_VALID|CSUM_PSEUDO_HDR);
- if (m->m_pkthdr.csum_flags & CSUM_SCTP)
- csum_flags |= CSUM_SCTP_VALID;
-
if (m->m_flags & M_BCAST) {
struct mbuf *n;
@@ -366,17 +365,13 @@ ether_output(struct ifnet *ifp, struct m
* See PR kern/105943 for a proposed general solution.
*/
if ((n = m_dup(m, M_NOWAIT)) != NULL) {
- n->m_pkthdr.csum_flags |= csum_flags;
- if (csum_flags & CSUM_DATA_VALID)
- n->m_pkthdr.csum_data = 0xffff;
+ update_mbuf_csumflags(m, n);
(void)if_simloop(ifp, n, dst->sa_family, hlen);
} else
ifp->if_iqdrops++;
} else if (bcmp(eh->ether_dhost, eh->ether_shost,
ETHER_ADDR_LEN) == 0) {
- m->m_pkthdr.csum_flags |= csum_flags;
- if (csum_flags & CSUM_DATA_VALID)
- m->m_pkthdr.csum_data = 0xffff;
+ update_mbuf_csumflags(m, m);
(void) if_simloop(ifp, m, dst->sa_family, hlen);
return (0); /* XXX */
}
More information about the svn-src-all
mailing list