void frame_escape_exampe(void* arg, struct modtest_result* result) {
char buf[] = { 0x7E, 0x00, 0x02, 0x23, 0x11, 0xCB };
const char escbuf[] = { 0x7E, 0x00, 0x02, 0x23, 0x7D, 0x31, 0xCB };
struct sk_buff* skb = NULL;
//pr_debug("bufsize %lu", sizeof(buf) );
skb = dev_alloc_skb(sizeof(buf) );
skb_put(skb, sizeof(buf) );
memcpy(skb->data, buf, sizeof(buf) );
print_hex_dump_bytes("skb: ", DUMP_PREFIX_NONE, skb->data, skb->len);
frame_escape(skb);
print_hex_dump_bytes("skb: ", DUMP_PREFIX_NONE, skb->data, skb->len);
print_hex_dump_bytes("esc: ", DUMP_PREFIX_NONE, escbuf, sizeof(escbuf));
//FAIL_IF_ERROR(err);
FAIL_IF_NOT_EQ(sizeof(escbuf), skb->len);
FAIL_IF_NOT_EQ(0, memcmp(escbuf, skb->data, sizeof(escbuf)) );
TEST_SUCCESS();
}
int ppp_complt(u_char *frame, int frame_size, struct framehdr *fh,
struct msidhash *mh, struct radiushash *rh, FILE *output){
//返回获得的IP数据包个数
int ipnum = 0, start = 0, end = 0;
_Int16 *protocol = 0, *size = 0;
u_char t[2];
while(start < frame_size){
if((end = flag_find(frame, frame_size, start+1)) == -1)
break;
start+=1;
if(start != end){
frame_escape((frame+start),end-start);
protocol = (_Int16 *)(frame+start+2);
switch(*protocol){
// case IPV4:
// //是IP协议说明是数据帧，进行解封装处理
// start+=4;
// t[0] = frame[start+2]; t[1] = frame[start+3];
// size = (_Int16 *)t;
// *size = short_displace(*size);
// fwrite(size, 1, sizeof(_Int16), output);
// fwrite((frame+start), 1, *size, output);
// ipnum++;
// break;
case IPCP:
start+=4;
IPCP_handler((frame+start), fh, mh, rh);
break;
default:
break;
}
start = end;
}
}
return ipnum;
}
