sys/netinet6/in6_cksum.c

81 #define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; (void)ADDCARRY(sum);}
86 	int sum;
97 	sum = csum;
107 	sum += uph.phs[0];  sum += uph.phs[1];
108 	sum += uph.phs[2];  sum += uph.phs[3];
113 	sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
114 	sum += w[4]; sum += w[5]; sum += w[6]; sum += w[7];
116 		sum -= scope;
121 	sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
122 	sum += w[4]; sum += w[5]; sum += w[6]; sum += w[7];
124 		sum -= scope;
126 	return (sum);
132 	int sum;
138 	sum = _in6_cksum_pseudo(ip6, len, nxt, csum);
140 	return (sum);
157 	int sum;
187 	sum = uph.phs[0];  sum += uph.phs[1];
188 	sum += uph.phs[2];  sum += uph.phs[3];
195 	sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
196 	sum += w[4]; sum += w[5]; sum += w[6]; sum += w[7];
198 		sum -= scope;
203 	sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
204 	sum += w[4]; sum += w[5]; sum += w[6]; sum += w[7];
206 		sum -= scope;
228 		sum <<= 8;
241 		sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
242 		sum += w[4]; sum += w[5]; sum += w[6]; sum += w[7];
243 		sum += w[8]; sum += w[9]; sum += w[10]; sum += w[11];
244 		sum += w[12]; sum += w[13]; sum += w[14]; sum += w[15];
249 		sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
257 		sum += *w++;
261 		sum <<= 8;
265 			sum += s_util.s;
292 			sum += s_util.s;
306 			sum <<= 8;
317 			sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
318 			sum += w[4]; sum += w[5]; sum += w[6]; sum += w[7];
319 			sum += w[8]; sum += w[9]; sum += w[10]; sum += w[11];
320 			sum += w[12]; sum += w[13]; sum += w[14]; sum += w[15];
325 			sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3];
333 			sum += *w++;
337 			sum <<= 8;
341 				sum += s_util.s;
355 		sum += s_util.s;
358 	return (~sum & 0xffff);