25 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
44 static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
50 	__u32 *tmp;  in cookie_hash()
71 static __u32 secure_tcp_syn_cookie(const struct in6_addr *saddr,  in secure_tcp_syn_cookie()
73 				   __be16 sport, __be16 dport, __u32 sseq,  in secure_tcp_syn_cookie()
74 				   __u32 data)  in secure_tcp_syn_cookie()
83 static __u32 check_tcp_syn_cookie(__u32 cookie, const struct in6_addr *saddr,  in check_tcp_syn_cookie()
85 				  __be16 dport, __u32 sseq)  in check_tcp_syn_cookie()
87 	__u32 diff, count = tcp_cookie_time();  in check_tcp_syn_cookie()
91 	diff = (count - (cookie >> COOKIEBITS)) & ((__u32) -1 >> COOKIEBITS);  in check_tcp_syn_cookie()
93 		return (__u32)-1;  in check_tcp_syn_cookie()
117 __u32 cookie_v6_init_sequence(const struct sk_buff *skb, __u16 *mssp)  in cookie_v6_init_sequence()
126 		      __u32 cookie)  in __cookie_v6_check()
128 	__u32 seq = ntohl(th->seq) - 1;  in __cookie_v6_check()
129 	__u32 mssind = check_tcp_syn_cookie(cookie, &iph->saddr, &iph->daddr,  in __cookie_v6_check()
144 	__u32 cookie = ntohl(th->ack_seq) - 1;  in cookie_v6_check()