| 80 |
|
* pragmatically since otherwise unsigned comparisons can result |
| 81 |
|
* against negative integers quite easily, and fail in subtle ways. |
| 82 |
|
*/ |
| 83 |
+ |
#ifdef PRAGMA_PACK_SUPPORTED |
| 84 |
+ |
#pragma pack(1) |
| 85 |
+ |
#endif |
| 86 |
+ |
|
| 87 |
|
struct ip { |
| 88 |
|
#ifdef WORDS_BIGENDIAN |
| 89 |
< |
u_int ip_v:4, /* version */ |
| 89 |
> |
u_char ip_v:4, /* version */ |
| 90 |
|
ip_hl:4; /* header length */ |
| 91 |
|
#else |
| 92 |
< |
u_int ip_hl:4, /* header length */ |
| 92 |
> |
u_char ip_hl:4, /* header length */ |
| 93 |
|
ip_v:4; /* version */ |
| 94 |
|
#endif |
| 95 |
|
u_int8_t ip_tos; /* type of service */ |
| 103 |
|
u_int8_t ip_p; /* protocol */ |
| 104 |
|
u_int16_t ip_sum; /* checksum */ |
| 105 |
|
struct in_addr ip_src,ip_dst; /* source and dest address */ |
| 106 |
< |
}; |
| 106 |
> |
} PACKED__; |
| 107 |
> |
|
| 108 |
> |
#ifdef PRAGMA_PACK_SUPPORTED |
| 109 |
> |
#pragma pack(0) |
| 110 |
> |
#endif |
| 111 |
|
|
| 112 |
|
#define IP_MAXPACKET 65535 /* maximum packet size */ |
| 113 |
|
|
| 151 |
|
/* |
| 152 |
|
* Time stamp option structure. |
| 153 |
|
*/ |
| 154 |
+ |
#ifdef PRAGMA_PACK_SUPPORTED |
| 155 |
+ |
#pragma pack(1) |
| 156 |
+ |
#endif |
| 157 |
+ |
|
| 158 |
|
struct ip_timestamp { |
| 159 |
|
u_int8_t ipt_code; /* IPOPT_TS */ |
| 160 |
|
u_int8_t ipt_len; /* size of structure (variable) */ |
| 161 |
|
u_int8_t ipt_ptr; /* index of current entry */ |
| 162 |
|
#ifdef WORDS_BIGENDIAN |
| 163 |
< |
u_int ipt_oflw:4, /* overflow counter */ |
| 163 |
> |
u_char ipt_oflw:4, /* overflow counter */ |
| 164 |
|
ipt_flg:4; /* flags, see below */ |
| 165 |
|
#else |
| 166 |
< |
u_int ipt_flg:4, /* flags, see below */ |
| 166 |
> |
u_char ipt_flg:4, /* flags, see below */ |
| 167 |
|
ipt_oflw:4; /* overflow counter */ |
| 168 |
|
#endif |
| 169 |
|
union ipt_timestamp { |
| 173 |
|
n_long ipt_time; |
| 174 |
|
} ipt_ta[1]; |
| 175 |
|
} ipt_timestamp; |
| 176 |
< |
}; |
| 176 |
> |
} PACKED__; |
| 177 |
> |
|
| 178 |
> |
#ifdef PRAGMA_PACK_SUPPORTED |
| 179 |
> |
#pragma pack(0) |
| 180 |
> |
#endif |
| 181 |
|
|
| 182 |
|
/* flag bits for ipt_flg */ |
| 183 |
|
#define IPOPT_TS_TSONLY 0 /* timestamps only */ |
| 224 |
|
/* |
| 225 |
|
* Overlay for ip header used by other protocols (tcp, udp). |
| 226 |
|
*/ |
| 227 |
+ |
#ifdef PRAGMA_PACK_SUPPORTED |
| 228 |
+ |
#pragma pack(1) |
| 229 |
+ |
#endif |
| 230 |
+ |
|
| 231 |
|
struct ipovly { |
| 232 |
|
caddr32_t ih_next, ih_prev; /* for protocol sequence q's */ |
| 233 |
|
u_int8_t ih_x1; /* (unused) */ |
| 235 |
|
int16_t ih_len; /* protocol length */ |
| 236 |
|
struct in_addr ih_src; /* source internet address */ |
| 237 |
|
struct in_addr ih_dst; /* destination internet address */ |
| 238 |
< |
}; |
| 238 |
> |
} PACKED__; |
| 239 |
> |
|
| 240 |
> |
#ifdef PRAGMA_PACK_SUPPORTED |
| 241 |
> |
#pragma pack(0) |
| 242 |
> |
#endif |
| 243 |
|
|
| 244 |
|
/* |
| 245 |
|
* Ip reassembly queue structure. Each fragment |
| 265 |
|
*/ |
| 266 |
|
struct ipasfrag { |
| 267 |
|
#ifdef WORDS_BIGENDIAN |
| 268 |
< |
u_int ip_v:4, |
| 268 |
> |
u_char ip_v:4, |
| 269 |
|
ip_hl:4; |
| 270 |
|
#else |
| 271 |
< |
u_int ip_hl:4, |
| 271 |
> |
u_char ip_hl:4, |
| 272 |
|
ip_v:4; |
| 273 |
|
#endif |
| 274 |
|
/* BUG : u_int changed to u_int8_t. |
