Rev 4711 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 4711 | Rev 4722 | ||
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| Line 126... | Line 126... | ||
| 126 | while( sum >> 16 ) sum = ( sum & 0xFFFF ) + ( sum >> 16 ); |
126 | while( sum >> 16 ) sum = ( sum & 0xFFFF ) + ( sum >> 16 ); |
| 127 | 127 | ||
| 128 | return ( uint16_t ) sum; |
128 | return ( uint16_t ) sum; |
| 129 | } |
129 | } |
| 130 | 130 | ||
| 131 | uint16_t ip_checksum( uint8_t * data, size_t length ){ |
131 | uint16_t flip_checksum( uint16_t checksum ){ |
| 132 | uint16_t checksum; |
- | |
| 133 | - | ||
| 134 | checksum = compact_checksum(compute_checksum( 0, data, length )); |
- | |
| 135 | - | ||
| 136 | // flip, zero is returned as 0xFFFF (not flipped) |
132 | // flip, zero is returned as 0xFFFF (not flipped) |
| 137 | return ( ~ checksum ) ? ( uint16_t ) ( ~ checksum ) : IP_CHECKSUM_ZERO; |
133 | return ( ~ checksum ) ? ( uint16_t ) ( ~ checksum ) : IP_CHECKSUM_ZERO; |
| 138 | } |
134 | } |
| 139 | 135 | ||
| - | 136 | uint16_t ip_checksum( uint8_t * data, size_t length ){ |
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| - | 137 | return flip_checksum( compact_checksum( compute_checksum( 0, data, length ))); |
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| - | 138 | } |
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| - | 139 | ||
| 140 | /** @} |
140 | /** @} |
| 141 | */ |
141 | */ |