Partial checksum values are stored inside headers when the calculation of the complete checksum is being handled by the hardware. Return Values The net_ispartialchecksum() function returns: –1 The network protocol does not support this function. 0 The packet does not contain partial checksums. ...
int skb_checksum_help(struct sk_buff *skb) { __wsum csum; int ret = 0, offset; if (skb->ip_summed == CHECKSUM_COMPLETE) goto out_set_summed; if (unlikely(skb_shinfo(skb)->gso_size)) { skb_warn_bad_offload(skb); return -EINVAL; } /* Before computing a checksum, we should ...
A method and device perform error detection with partial checksum coverage by using a first transport protocol, wherein interface means are provided for requesting from a second lower-level transport protocol at least one lower-level header field to be subjected to checksum calculation over a ...
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[Android.Runtime.Register("TYPE_PARTIAL_MERKLE_ROOT_1M_SHA256", ApiSince=31)] [System.Obsolete("This constant will be removed in the future version. Use Android.Content.PM.ChecksumType enum directly instead of this field.", true)]publicconstAndroid.Content.PM.ChecksumType TypePartialMerkleRoot...
1213 - if (skb->ip_summed == CHECKSUM_COMPLETE) 1216 + if (BPF_RECOMPUTE_CSUM(flags) && skb->ip_summed == CHECKSUM_COMPLETE) 1214 1217 skb->csum = csum_add(skb->csum, csum_partial(ptr, len, 0)); 1215 1218 return 0; 1216 1219 } @@ -1223,6 +1226,99 @@ const stru...
Once this long chain of additions is complete, the result is negated in ones-complement by taking the binary not, and the result is stored in the right spot. If this operation is repeated then the result of the checksum should be the binary all-ones....
A test implementation of the partial checksum technique for H.264 video transmission is presented, where the link-level checksum protects only the most important subset of the compressed video bitstream, as defined by the ITU-T H.264 standard. Simulation results —obtained using NS-2 and a ...
Constraints for this type parameter do not match the constraints on the corresponding type parameter defined on one of the other partial types of '|1' Construct makes an indirect reference to assembly '<assemblyname>', which contains '<typename>' Construct makes an indirect reference to project...
calculating a new checksum from said, partial checksum and a checksum previously stored in said backup memory; and said step of storing comprises storing said new checksum in said backup memory. Description: BACKGROUND OF THE INVENTION 1. Field of the Invention ...