diff options
| author | Thomas Schwinge <tschwinge@gnu.org> | 2006-04-27 00:56:34 +0000 |
|---|---|---|
| committer | Thomas Schwinge <tschwinge@gnu.org> | 2009-06-18 00:26:37 +0200 |
| commit | 1ca2a1632d7325ee26b2c701b38c1d2e2fcb6f80 (patch) | |
| tree | 630990386066401f4ce5b9fc530078c8a128a822 /include | |
| parent | a9192e8b618990551fcb230941e87728d86864eb (diff) | |
2006-04-27 Richard Braun <syn@hurdfr.org>
Manuel Menal <mmenal@hurdfr.org>
* device/if_hdr.h (struct ifnet): Added new members `if_snd_port_list'
and `if_snd_port_list_lock'.
* device/net_io.c: Reworked to improve BPF support. Filters can be
applied to ingress packets, egress packets, or both.
* device/subrs.c: Initialize the `if_snd_port_list' and
`if_snd_port_list_lock'.
* include/device/bpf.h [0]: Enable unconditionally.
Include <sys/types.h>.
(BPF_IN, BPF_OUT): New macros.
* include/device/net_status.h (NETF_TYPE_MASK, NETF_IN, NETF_OUT): New
macros.
(struct net_rcv_msg): New member `sent'.
* linux/dev/glue/net.c: Mark ingress packets as received and inject
egress packets into the packet filters.
Diffstat (limited to 'include')
| -rw-r--r-- | include/device/bpf.h | 11 | ||||
| -rw-r--r-- | include/device/net_status.h | 15 |
2 files changed, 20 insertions, 6 deletions
diff --git a/include/device/bpf.h b/include/device/bpf.h index 05cbf9b..a4c4eef 100644 --- a/include/device/bpf.h +++ b/include/device/bpf.h @@ -72,7 +72,8 @@ #ifndef _DEVICE_BPF_H_ #define _DEVICE_BPF_H_ -#if 0 /* not used in MK now */ +#include <sys/types.h> /* u_short */ + /* * Alignment macros. BPF_WORDALIGN rounds up to the next * even multiple of BPF_ALIGNMENT. @@ -115,14 +116,14 @@ struct bpf_version { #define DLT_PPP 9 /* Point-to-point Protocol */ #define DLT_FDDI 10 /* FDDI */ -#endif /* 0 */ - /* * The instruction encondings. */ -/* Magic number for the first instruction */ -#define BPF_BEGIN NETF_BPF +/* Magic number and flags for the first instruction */ +#define BPF_BEGIN NETF_BPF +#define BPF_IN NETF_IN +#define BPF_OUT NETF_OUT /* instruction classes */ #define BPF_CLASS(code) ((code) & 0x07) diff --git a/include/device/net_status.h b/include/device/net_status.h index dbf5e39..5131ef5 100644 --- a/include/device/net_status.h +++ b/include/device/net_status.h @@ -98,6 +98,11 @@ struct net_status { * If the final value of the filter operation is true, then the packet is * accepted for the filter. * + * The first filter_t object is a header which allows to set flags for the + * filter code. Main flags concern the direction of packets. This header is + * split in the same way NETF words are : the 6 MSB bits indicate the type + * of filter while the 10 LSB bits are the flags. For native NETF filters, + * clear the 6 MSB bits (which is why there is no dedicated macro). */ typedef unsigned short filter_t; @@ -112,6 +117,14 @@ typedef filter_t *filter_array_t; #define NETF_ARG(word) ((word) & 0x3ff) #define NETF_OP(word) (((word)>>NETF_NBPA)&0x3f) +/* filter types */ +#define NETF_TYPE_MASK (((1 << NETF_NBPO) - 1) << NETF_NBPA) +#define NETF_BPF (1 << NETF_NBPA) + +/* flags */ +#define NETF_IN 0x1 +#define NETF_OUT 0x2 + /* binary operators */ #define NETF_NOP (0<<NETF_NBPA) #define NETF_EQ (1<<NETF_NBPA) @@ -131,7 +144,6 @@ typedef filter_t *filter_array_t; #define NETF_RSH (15<<NETF_NBPA) #define NETF_ADD (16<<NETF_NBPA) #define NETF_SUB (17<<NETF_NBPA) -#define NETF_BPF (((1 << NETF_NBPO) - 1) << NETF_NBPA) /* stack arguments */ @@ -178,6 +190,7 @@ struct net_rcv_msg { char header[NET_HDW_HDR_MAX]; mach_msg_type_t packet_type; char packet[NET_RCV_MAX]; + boolean_t sent; }; typedef struct net_rcv_msg *net_rcv_msg_t; #define net_rcv_msg_packet_count packet_type.msgt_number |