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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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|
* documentation and/or other materials provided with the distribution. |
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< |
* 3. All advertising materials mentioning features or use of this software |
| 14 |
< |
* must display the following acknowledgement: |
| 15 |
< |
* This product includes software developed by the University of |
| 16 |
< |
* California, Berkeley and its contributors. |
| 17 |
< |
* 4. Neither the name of the University nor the names of its contributors |
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> |
* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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|
|
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|
/* |
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* Structure of an internet header, naked of options. |
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– |
* |
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– |
* We declare ip_len and ip_off to be short, rather than u_short |
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– |
* pragmatically since otherwise unsigned comparisons can result |
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– |
* against negative integers quite easily, and fail in subtle ways. |
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*/ |
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#ifdef PRAGMA_PACK_SUPPORTED |
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#pragma pack(1) |
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|
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struct ip { |
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#ifdef WORDS_BIGENDIAN |
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< |
u_int ip_v:4, /* version */ |
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> |
u_char ip_v:4, /* version */ |
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ip_hl:4; /* header length */ |
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#else |
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< |
u_int ip_hl:4, /* header length */ |
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> |
u_char ip_hl:4, /* header length */ |
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ip_v:4; /* version */ |
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#endif |
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u_int8_t ip_tos; /* type of service */ |
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int16_t ip_len; /* total length */ |
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> |
u_int16_t ip_len; /* total length */ |
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|
u_int16_t ip_id; /* identification */ |
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< |
int16_t ip_off; /* fragment offset field */ |
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> |
u_int16_t ip_off; /* fragment offset field */ |
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#define IP_DF 0x4000 /* don't fragment flag */ |
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#define IP_MF 0x2000 /* more fragments flag */ |
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#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */ |
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u_int8_t ipt_len; /* size of structure (variable) */ |
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u_int8_t ipt_ptr; /* index of current entry */ |
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#ifdef WORDS_BIGENDIAN |
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< |
u_int ipt_oflw:4, /* overflow counter */ |
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> |
u_char ipt_oflw:4, /* overflow counter */ |
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ipt_flg:4; /* flags, see below */ |
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#else |
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< |
u_int ipt_flg:4, /* flags, see below */ |
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> |
u_char ipt_flg:4, /* flags, see below */ |
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ipt_oflw:4; /* overflow counter */ |
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#endif |
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union ipt_timestamp { |
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caddr32_t ih_next, ih_prev; /* for protocol sequence q's */ |
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u_int8_t ih_x1; /* (unused) */ |
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u_int8_t ih_pr; /* protocol */ |
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< |
int16_t ih_len; /* protocol length */ |
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> |
u_int16_t ih_len; /* protocol length */ |
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struct in_addr ih_src; /* source internet address */ |
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struct in_addr ih_dst; /* destination internet address */ |
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} PACKED__; |
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*/ |
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|
struct ipasfrag { |
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|
#ifdef WORDS_BIGENDIAN |
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< |
u_int ip_v:4, |
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> |
u_char ip_v:4, |
| 261 |
|
ip_hl:4; |
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|
#else |
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< |
u_int ip_hl:4, |
| 263 |
> |
u_char ip_hl:4, |
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|
ip_v:4; |
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|
#endif |
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|
/* BUG : u_int changed to u_int8_t. |
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|
u_int8_t ipf_mff; /* XXX overlays ip_tos: use low bit |
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* to avoid destroying tos (PPPDTRuu); |
| 271 |
|
* copied from (ip_off&IP_MF) */ |
| 272 |
< |
int16_t ip_len; |
| 272 |
> |
u_int16_t ip_len; |
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|
u_int16_t ip_id; |
| 274 |
< |
int16_t ip_off; |
| 274 |
> |
u_int16_t ip_off; |
| 275 |
|
u_int8_t ip_ttl; |
| 276 |
|
u_int8_t ip_p; |
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|
u_int16_t ip_sum; |
