82 	if (IPCB(skb)->opt.optlen == 0)  in ip_cmsg_recv_opts()
85 	put_cmsg(msg, SOL_IP, IP_RECVOPTS, IPCB(skb)->opt.optlen,  in ip_cmsg_recv_opts()
95 	if (IPCB(skb)->opt.optlen == 0)  in ip_cmsg_recv_retopts()
104 	put_cmsg(msg, SOL_IP, IP_RETOPTS, opt->optlen, opt->__data);  in ip_cmsg_recv_retopts()
474 			    int optname, char __user *optval, unsigned int optlen)  in do_ip_setsockopt()  argument
501 		if (optlen >= sizeof(int)) {  in do_ip_setsockopt()
504 		} else if (optlen >= sizeof(char)) {  in do_ip_setsockopt()
516 		return ip_mroute_setsockopt(sk, optname, optval, optlen);  in do_ip_setsockopt()
526 		if (optlen > 40)  in do_ip_setsockopt()
529 					       optval, optlen);  in do_ip_setsockopt()
543 					icsk->icsk_ext_hdr_len -= old->opt.optlen;  in do_ip_setsockopt()
545 					icsk->icsk_ext_hdr_len += opt->opt.optlen;  in do_ip_setsockopt()
610 		if (optlen < 1)  in do_ip_setsockopt()
643 		if (optlen < 1)  in do_ip_setsockopt()
652 		if (optlen < 1)  in do_ip_setsockopt()
661 		if (optlen != sizeof(int))  in do_ip_setsockopt()
696 		if (optlen < sizeof(struct in_addr))  in do_ip_setsockopt()
700 		if (optlen >= sizeof(struct ip_mreqn)) {  in do_ip_setsockopt()
705 			if (optlen >= sizeof(struct ip_mreq)) {  in do_ip_setsockopt()
709 			} else if (optlen >= sizeof(struct in_addr)) {  in do_ip_setsockopt()
755 		if (optlen < sizeof(struct ip_mreq))  in do_ip_setsockopt()
758 		if (optlen >= sizeof(struct ip_mreqn)) {  in do_ip_setsockopt()
777 		if (optlen < IP_MSFILTER_SIZE(0))  in do_ip_setsockopt()
779 		if (optlen > sysctl_optmem_max) {  in do_ip_setsockopt()
783 		msf = kmalloc(optlen, GFP_KERNEL);  in do_ip_setsockopt()
789 		if (copy_from_user(msf, optval, optlen)) {  in do_ip_setsockopt()
800 		if (IP_MSFILTER_SIZE(msf->imsf_numsrc) > optlen) {  in do_ip_setsockopt()
817 		if (optlen != sizeof(struct ip_mreq_source))  in do_ip_setsockopt()
854 		if (optlen < sizeof(struct group_req))  in do_ip_setsockopt()
882 		if (optlen != sizeof(struct group_source_req))  in do_ip_setsockopt()
933 		if (optlen < GROUP_FILTER_SIZE(0))  in do_ip_setsockopt()
935 		if (optlen > sysctl_optmem_max) {  in do_ip_setsockopt()
939 		gsf = kmalloc(optlen, GFP_KERNEL);  in do_ip_setsockopt()
945 		if (copy_from_user(gsf, optval, optlen))  in do_ip_setsockopt()
954 		if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {  in do_ip_setsockopt()
992 		if (optlen < 1)  in do_ip_setsockopt()
1003 		if (optlen < 1)  in do_ip_setsockopt()
1013 		err = xfrm_user_policy(sk, optname, optval, optlen);  in do_ip_setsockopt()
1022 		if (optlen < 1)  in do_ip_setsockopt()
1028 		if (optlen < 1)  in do_ip_setsockopt()
1073 	if (unlikely(IPCB(skb)->opt.optlen))  in ipv4_pktinfo_prepare()
1080 		int optname, char __user *optval, unsigned int optlen)  in ip_setsockopt()  argument
1087 	err = do_ip_setsockopt(sk, level, optname, optval, optlen);  in ip_setsockopt()
1095 		err = nf_setsockopt(sk, PF_INET, optname, optval, optlen);  in ip_setsockopt()
1105 			 char __user *optval, unsigned int optlen)  in compat_ip_setsockopt()  argument
1113 		return compat_mc_setsockopt(sk, level, optname, optval, optlen,  in compat_ip_setsockopt()
1116 	err = do_ip_setsockopt(sk, level, optname, optval, optlen);  in compat_ip_setsockopt()
1125 					   optval, optlen);  in compat_ip_setsockopt()
1140 			    char __user *optval, int __user *optlen, unsigned int flags)  in do_ip_getsockopt()  argument
1150 		return ip_mroute_getsockopt(sk, optname, optval, optlen);  in do_ip_getsockopt()
1152 	if (get_user(len, optlen))  in do_ip_getsockopt()
1168 		opt->optlen = 0;  in do_ip_getsockopt()
1172 			       inet_opt->opt.optlen);  in do_ip_getsockopt()
1175 		if (opt->optlen == 0)  in do_ip_getsockopt()
1176 			return put_user(0, optlen);  in do_ip_getsockopt()
1180 		len = min_t(unsigned int, len, opt->optlen);  in do_ip_getsockopt()
1181 		if (put_user(len, optlen))  in do_ip_getsockopt()
1259 		if (put_user(len, optlen))  in do_ip_getsockopt()
1279 				   (struct ip_msfilter __user *)optval, optlen);  in do_ip_getsockopt()
1298 				   optlen);  in do_ip_getsockopt()
1335 		return put_user(len, optlen);  in do_ip_getsockopt()
1355 		if (put_user(len, optlen))  in do_ip_getsockopt()
1361 		if (put_user(len, optlen))  in do_ip_getsockopt()
1370 		  int optname, char __user *optval, int __user *optlen)  in ip_getsockopt()  argument
1374 	err = do_ip_getsockopt(sk, level, optname, optval, optlen, 0);  in ip_getsockopt()
1381 		if (get_user(len, optlen))  in ip_getsockopt()
1389 			err = put_user(len, optlen);  in ip_getsockopt()
1399 			 char __user *optval, int __user *optlen)  in compat_ip_getsockopt()  argument
1404 		return compat_mc_getsockopt(sk, level, optname, optval, optlen,  in compat_ip_getsockopt()
1407 	err = do_ip_getsockopt(sk, level, optname, optval, optlen,  in compat_ip_getsockopt()
1416 		if (get_user(len, optlen))  in compat_ip_getsockopt()
1423 			err = put_user(len, optlen);  in compat_ip_getsockopt()