bpf/progs/test_tcp_custom_syncookie.h

56 					__u32 len, __u8 proto, __wsum sum)
58 	unsigned long long s = (__force u32)sum;
73 	u32 sum = (__force u32)csum;
75 	sum = (sum & 0xffff) + (sum >> 16);
76 	sum = (sum & 0xffff) + (sum >> 16);
77 	return (__force __sum16)~sum;
81 					__u8 proto, __wsum sum)
83 	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
94 	__u32 sum = (__force u32)csum;
96 	sum += (__force u32)saddr->in6_u.u6_addr32[0];
97 	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[0]);
98 	sum += carry;
100 	sum += (__force u32)saddr->in6_u.u6_addr32[1];
101 	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[1]);
102 	sum += carry;
104 	sum += (__force u32)saddr->in6_u.u6_addr32[2];
105 	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[2]);
106 	sum += carry;
108 	sum += (__force u32)saddr->in6_u.u6_addr32[3];
109 	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[3]);
110 	sum += carry;
112 	sum += (__force u32)daddr->in6_u.u6_addr32[0];
113 	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[0]);
114 	sum += carry;
116 	sum += (__force u32)daddr->in6_u.u6_addr32[1];
117 	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[1]);
118 	sum += carry;
120 	sum += (__force u32)daddr->in6_u.u6_addr32[2];
121 	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[2]);
122 	sum += carry;
124 	sum += (__force u32)daddr->in6_u.u6_addr32[3];
125 	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[3]);
126 	sum += carry;
129 	sum += ulen;
130 	carry = (sum < ulen);
131 	sum += carry;
134 	sum += uproto;
135 	carry = (sum < uproto);
136 	sum += carry;
138 	return csum_fold((__force __wsum)sum);