diff options
Diffstat (limited to 'include/device/net_status.h')
| -rw-r--r-- | include/device/net_status.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/device/net_status.h b/include/device/net_status.h index dbf5e39f..5131ef53 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 |