diff options
| author | Angelos D. Keromytis <angelos@cvs.openbsd.org> | 2001-06-23 02:01:09 +0000 |
|---|---|---|
| committer | Angelos D. Keromytis <angelos@cvs.openbsd.org> | 2001-06-23 02:01:09 +0000 |
| commit | 1c7daffba6f64b26bd7e1427cf933c1365bec83f (patch) | |
| tree | eb965062b7c537becb40cf8e70ea1707e458f00f | |
| parent | 0d5632f907ffd4f64207a14938984544f38bc12e (diff) | |
Add csum field for hardware checksumming. Based on NetBSD's approach.
| -rw-r--r-- | sys/sys/mbuf.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h index 7f32775af0a..c0e6f3738fc 100644 --- a/sys/sys/mbuf.h +++ b/sys/sys/mbuf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: mbuf.h,v 1.38 2001/06/22 14:11:00 deraadt Exp $ */ +/* $OpenBSD: mbuf.h,v 1.39 2001/06/23 02:01:08 angelos Exp $ */ /* $NetBSD: mbuf.h,v 1.19 1996/02/09 18:25:14 christos Exp $ */ /* @@ -84,6 +84,7 @@ struct pkthdr { struct ifnet *rcvif; /* rcv interface */ LIST_HEAD(packet_tags, m_tag) tags; /* list of packet tags */ int len; /* total packet length */ + int csum; /* Hardware checksum info */ }; /* description of external storage mapped into mbuf, valid if M_EXT set */ @@ -142,6 +143,17 @@ struct mbuf { #define M_CONF 0x0400 /* packet was encrypted (ESP-transport) */ #define M_AUTH 0x0800 /* packet was authenticated (AH) */ +/* Checksumming flags */ +#define M_IPV4_CSUM_OUT 0x0001 /* IPv4 checksum needed */ +#define M_TCPV4_CSUM_OUT 0x2002 /* TCP checksum needed */ +#define M_UDPV4_CSUM_OUT 0x0004 /* UDP checksum needed */ +#define M_IPV4_CSUM_IN_OK 0x0008 /* IPv4 checksum verified */ +#define M_IPV4_CSUM_IN_BAD 0x0010 /* IPv4 checksum bad */ +#define M_TCPV4_CSUM_IN_OK 0x0020 /* TCP/IPv4 checksum verified */ +#define M_TCPV4_CSUM_IN_BAD 0x0040 /* TCP/IPv4 checksum bad */ +#define M_UDPV4_CSUM_IN_OK 0x0080 /* UDP/IPv4 checksum verified */ +#define M_UDPV4_CSUM_IN_BAD 0x0100 /* UDP/IPv4 checksum bad */ + /* KAME IPv6 */ #define M_ANYCAST6 0x4000 /* received as IPv6 anycast */ @@ -226,6 +238,7 @@ struct mbuf *_sk_mget(int, int); (m)->m_data = (m)->m_pktdat; \ (m)->m_flags = M_PKTHDR; \ LIST_INIT(&(m)->m_pkthdr.tags); \ + (m)->m_pkthdr.csum = 0; \ } else \ (m) = m_retryhdr((how), (type)); \ } while (/* CONSTCOND */ 0) |