Hi,
It seems that hf_xyz_imsi that you have defined in your hf_register_info
struct is not a FT_STRING or a FT_STRINGZ type.
Regards,
Sebastien Tandel
taraniteja.vishwanatha@xxxxxxxxx wrote:
>
> Hi ,
>
>
>
> We have a parameter IMSI in our protocol . It has the following format :
>
>
>
> 7
>
>
>
> 6
>
>
>
> 5
>
>
>
> 4
>
>
>
> 3
>
>
>
> 2
>
>
>
> 1
>
>
>
> 0
>
>
>
> octet
>
> Number of digits
>
>
>
> 3
>
> IMSI digit 2
>
>
>
> IMSI digit 1
>
>
>
> 4
>
> IMSI digit 4
>
>
>
> IMSI digit 3
>
>
>
> 5
>
> IMSI digit 2n
>
>
>
> IMSI digit 2n-1
>
>
>
> n+3
>
>
>
> typedef struct dgt_set_t
>
> {
>
> unsigned char out[15];
>
> }
>
> dgt_set_t;
>
>
>
> static dgt_set_t Dgt1_9_bcd = {
>
> {
>
> '0','1','2','3','4','5','6','7','8','9','?','?','?','?','?'
>
> }
>
> };
>
>
>
> char *digit_str;
>
>
>
> digit_str = unpack_digits(tvb, offset, &Dgt1_9_bcd);
>
>
>
> proto_tree_add_string(tree, hf_xyz_imsi, tvb, (imsi_len/2 + 1),
> (imsi_len/2 + 1), digit_str);
>
>
>
> return offset + imsi_len/2 + 1;
>
>
>
> static char*
>
> unpack_digits(tvbuff_t *tvb, int offset, dgt_set_t *dgt){
>
>
>
> int length;
>
> guint8 octet;
>
> int i=0;
>
> char *digit_str;
>
>
>
> length = tvb_length(tvb);
>
> if (length < offset)
>
> return "";
>
> digit_str = ep_alloc((length - offset)*2+1);
>
>
>
> while ( offset < length ){
>
>
>
> octet = tvb_get_guint8(tvb,offset);
>
>
>
> digit_str[i] = dgt->out[octet & 0x0f];
>
> i++;
>
>
>
> /* unpack second value in byte */
>
> octet = octet >> 4;
>
>
>
> if (octet == 0x0f) /* odd number bytes - hit
> filler */
>
> break;
>
>
>
> digit_str[i] = dgt->out[octet & 0x0f];
>
> i++;
>
> offset++;
>
>
>
> }
>
> digit_str[i]= '\0';
>
> return digit_str;
>
> }
>
>
>
> When the above code snippet is executed, we are getting the following
> error:
>
>
>
> Warn Dissector bug, protocol MACIC, in packet 1: proto.c:1859: failed
> assertion "hfinfo->type == FT_STRING || hfinfo->type == FT_STRINGZ"
>
>
>
> Your help is appreciated .
>
>
>
> //Tarani
>
>
>
>
>
>
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