diff options
| author | Reyk Floeter <reyk@cvs.openbsd.org> | 2015-10-30 12:54:37 +0000 |
|---|---|---|
| committer | Reyk Floeter <reyk@cvs.openbsd.org> | 2015-10-30 12:54:37 +0000 |
| commit | c8467f89a5663b92781c07e7812031a12f2801b5 (patch) | |
| tree | ba14c6e86538863fe000d0bcb7d528ce100bfc50 /sys/kern | |
| parent | cec717f7712015bf2b0130106c0aaf5bbdb1a684 (diff) | |
Add m_resethdr() to clear any state (pf, tags, flags) of an mbuf packet.
Start using it in pair(4) to clear state on the receiving interface;
m_resethdr() will also be used in other parts of the stack.
OK bluhm@ mikeb@
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/uipc_mbuf.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/kern/uipc_mbuf.c b/sys/kern/uipc_mbuf.c index 79443d4cb3b..2c8f87a90da 100644 --- a/sys/kern/uipc_mbuf.c +++ b/sys/kern/uipc_mbuf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uipc_mbuf.c,v 1.208 2015/10/22 05:26:06 dlg Exp $ */ +/* $OpenBSD: uipc_mbuf.c,v 1.209 2015/10/30 12:54:36 reyk Exp $ */ /* $NetBSD: uipc_mbuf.c,v 1.15.4.1 1996/06/13 17:11:44 cgd Exp $ */ /* @@ -250,6 +250,18 @@ m_inithdr(struct mbuf *m) return (m); } +void +m_resethdr(struct mbuf *m) +{ + /* like the previous, but keep any associated data and mbufs */ + m->m_flags = M_PKTHDR; + memset(&m->m_pkthdr.pf, 0, sizeof(m->m_pkthdr.pf)); + m->m_pkthdr.pf.prio = IFQ_DEFPRIO; + + /* also delete all mbuf tags to reset the state */ + m_tag_delete_chain(m); +} + struct mbuf * m_getclr(int nowait, int type) { |