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| 49 | 49 | ||
| 50 | int icmp_client_process_packet( packet_t packet, icmp_type_t * type, icmp_code_t * code, icmp_param_t * pointer, icmp_param_t * mtu ){ |
50 | int icmp_client_process_packet( packet_t packet, icmp_type_t * type, icmp_code_t * code, icmp_param_t * pointer, icmp_param_t * mtu ){ |
| 51 | icmp_header_ref header; |
51 | icmp_header_ref header; |
| 52 | 52 | ||
| 53 | header = ( icmp_header_ref ) packet_get_data( packet ); |
53 | header = ( icmp_header_ref ) packet_get_data( packet ); |
| 54 | if( ! header ) return ENOMEM; |
54 | if(( ! header ) |
| - | 55 | || ( packet_get_data_length( packet ) < sizeof( icmp_header_t ))){ |
|
| - | 56 | return 0; |
|
| - | 57 | } |
|
| 55 | if( type ) * type = header->type; |
58 | if( type ) * type = header->type; |
| 56 | if( code ) * code = header->code; |
59 | if( code ) * code = header->code; |
| 57 | if( pointer ) * pointer = header->un.param.pointer; |
60 | if( pointer ) * pointer = header->un.param.pointer; |
| 58 | if( mtu ) * mtu = header->un.frag.mtu; |
61 | if( mtu ) * mtu = header->un.frag.mtu; |
| 59 | return sizeof( icmp_header_t ); |
62 | return sizeof( icmp_header_t ); |
| 60 | } |
63 | } |
| 61 | 64 | ||
| 62 | int icmp_client_header_length( packet_t packet ){ |
65 | size_t icmp_client_header_length( packet_t packet ){ |
| - | 66 | if( packet_get_data_length( packet ) < sizeof( icmp_header_t )){ |
|
| - | 67 | return 0; |
|
| - | 68 | } |
|
| 63 | return sizeof( icmp_header_t ); |
69 | return sizeof( icmp_header_t ); |
| 64 | } |
70 | } |
| 65 | 71 | ||
| 66 | /** @} |
72 | /** @} |
| 67 | */ |
73 | */ |