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[/] [1g_ethernet_dpi/] [tags/] [v0.0/] [sw/] [dev/] [test_bfm/] [ether/] [ether_rx.c] - Blame information for rev 3

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1 3 kuzmi4
//////////////////////////////////////////////////////////////////////////////////
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#include <stdlib.h>
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#include <stdio.h>
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#include "ether.h" // ETH_PKT_MAC_ADDR_LEN, ..
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#include "eth_host_bfm.h" // eth_frm_read_wait, ..
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//////////////////////////////////////////////////////////////////////////////////
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// PKT-LEN
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int pkt_len;
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//////////////////////////////////////////////////////////////////////////////////
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// 
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// Ethernet RX routine
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//
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int ether_rx_ok(void)
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{
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    eth_frm_read_len(&pkt_len);
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    return(pkt_len != -1);
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}
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void ether_rx(char *obuff, int *olen) // !!!only after 'ether_rx_ok' + 'obuff' must be pre-allocated
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{
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    // dec vars
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    int i, pkt_data;
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    // proc
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    *olen = pkt_len;
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    for (i = 0; i < pkt_len; i++) {
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            eth_frm_read(&pkt_data, i);
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            *(obuff+i) = pkt_data;
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    }
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    // msg2usr
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    unsigned short pkt_type = *((unsigned short *)((obuff)+ETH_PKT_MAC_ADDR_LEN*2));
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    switch(pkt_type) {
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        case ETH_PKT_ARP : {
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            printf("ether_rx: ETH_PKT_ARP, len=%04x\n", pkt_len);
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            break;
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        }
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        case ETH_PKT_IPv4 : {
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            ip_hdr_t *ptr_ipv4_hdr = (ip_hdr_t *)(obuff+ETH_HDR_LEN);
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            switch(ptr_ipv4_hdr->ip_prot) {
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                case IPv4_ICMP : {
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                    printf("ether_rx: ETH_PKT_IPv4-ICMP, len=%04x\n", pkt_len);
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                    break;
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                }
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                case IPv4_UDP : {
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                    printf("ether_rx: ETH_PKT_IPv4-UDP, len=%04x\n", pkt_len);
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                    break;
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                }
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                default : {
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                    printf("ether_rx: ETH_PKT_IPv4: IP protocol number = %x, len=%04x\n", ptr_ipv4_hdr->ip_prot, pkt_len);
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                    break;
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                }
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            }
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            break;
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        }
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        default : {
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            printf("ether_rx: pkt-type=%04x, len=%04x\n", ntohs(pkt_type), pkt_len);
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            break;
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        }
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    }
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}
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//////////////////////////////////////////////////////////////////////////////////

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