78 	if (IPCB(skb)->opt.optlen == 0)  in ip_cmsg_recv_opts()
81 	put_cmsg(msg, SOL_IP, IP_RECVOPTS, IPCB(skb)->opt.optlen,  in ip_cmsg_recv_opts()
92 	if (IPCB(skb)->opt.optlen == 0)  in ip_cmsg_recv_retopts()
101 	put_cmsg(msg, SOL_IP, IP_RETOPTS, opt->optlen, opt->__data);  in ip_cmsg_recv_retopts()
699 		sockptr_t optval, int optlen)  in copy_group_source_from_sockptr()  argument
704 		if (optlen != sizeof(gr32))  in copy_group_source_from_sockptr()
712 		if (optlen != sizeof(*greqs))  in copy_group_source_from_sockptr()
722 		sockptr_t optval, int optlen)  in do_mcast_group_source()  argument
729 	err = copy_group_source_from_sockptr(&greqs, optval, optlen);  in do_mcast_group_source()
769 static int ip_set_mcast_msfilter(struct sock *sk, sockptr_t optval, int optlen)  in ip_set_mcast_msfilter()  argument
774 	if (optlen < GROUP_FILTER_SIZE(0))  in ip_set_mcast_msfilter()
776 	if (optlen > READ_ONCE(sysctl_optmem_max))  in ip_set_mcast_msfilter()
779 	gsf = memdup_sockptr(optval, optlen);  in ip_set_mcast_msfilter()
790 	if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen)  in ip_set_mcast_msfilter()
801 		int optlen)  in compat_ip_set_mcast_msfilter()  argument
809 	if (optlen < size0)  in compat_ip_set_mcast_msfilter()
811 	if (optlen > READ_ONCE(sysctl_optmem_max) - 4)  in compat_ip_set_mcast_msfilter()
814 	p = kmalloc(optlen + 4, GFP_KERNEL);  in compat_ip_set_mcast_msfilter()
820 	if (copy_from_sockptr(gf32, optval, optlen))  in compat_ip_set_mcast_msfilter()
830 	if (offsetof(struct compat_group_filter, gf_slist[n]) > optlen)  in compat_ip_set_mcast_msfilter()
845 		sockptr_t optval, int optlen)  in ip_mcast_join_leave()  argument
851 	if (optlen < sizeof(struct group_req))  in ip_mcast_join_leave()
867 		sockptr_t optval, int optlen)  in compat_ip_mcast_join_leave()  argument
873 	if (optlen < sizeof(struct compat_group_req))  in compat_ip_mcast_join_leave()
890 		sockptr_t optval, unsigned int optlen)  in do_ip_setsockopt()  argument
923 		if (optlen >= sizeof(int)) {  in do_ip_setsockopt()
926 		} else if (optlen >= sizeof(char)) {  in do_ip_setsockopt()
940 		return ip_mroute_setsockopt(sk, optname, optval, optlen);  in do_ip_setsockopt()
952 		if (optlen > 40)  in do_ip_setsockopt()
954 		err = ip_options_get(sock_net(sk), &opt, optval, optlen);  in do_ip_setsockopt()
968 					icsk->icsk_ext_hdr_len -= old->opt.optlen;  in do_ip_setsockopt()
970 					icsk->icsk_ext_hdr_len += opt->opt.optlen;  in do_ip_setsockopt()
1048 		if (optlen < 1)  in do_ip_setsockopt()
1089 		if (optlen < 1)  in do_ip_setsockopt()
1098 		if (optlen < 1)  in do_ip_setsockopt()
1108 		if (optlen != sizeof(int))  in do_ip_setsockopt()
1146 		if (optlen < sizeof(struct in_addr))  in do_ip_setsockopt()
1150 		if (optlen >= sizeof(struct ip_mreqn)) {  in do_ip_setsockopt()
1155 			if (optlen >= sizeof(struct ip_mreq)) {  in do_ip_setsockopt()
1159 			} else if (optlen >= sizeof(struct in_addr)) {  in do_ip_setsockopt()
1209 		if (optlen < sizeof(struct ip_mreq))  in do_ip_setsockopt()
1212 		if (optlen >= sizeof(struct ip_mreqn)) {  in do_ip_setsockopt()
1232 		if (optlen < IP_MSFILTER_SIZE(0))  in do_ip_setsockopt()
1234 		if (optlen > READ_ONCE(sysctl_optmem_max)) {  in do_ip_setsockopt()
1238 		msf = memdup_sockptr(optval, optlen);  in do_ip_setsockopt()
1250 		if (IP_MSFILTER_SIZE(msf->imsf_numsrc) > optlen) {  in do_ip_setsockopt()
1267 		if (optlen != sizeof(struct ip_mreq_source))  in do_ip_setsockopt()
1301 							 optlen);  in do_ip_setsockopt()
1303 			err = ip_mcast_join_leave(sk, optname, optval, optlen);  in do_ip_setsockopt()
1309 		err = do_mcast_group_source(sk, optname, optval, optlen);  in do_ip_setsockopt()
1313 			err = compat_ip_set_mcast_msfilter(sk, optval, optlen);  in do_ip_setsockopt()
1315 			err = ip_set_mcast_msfilter(sk, optval, optlen);  in do_ip_setsockopt()
1318 		if (optlen < 1)  in do_ip_setsockopt()
1326 		if (optlen < 1)  in do_ip_setsockopt()
1336 		err = xfrm_user_policy(sk, optname, optval, optlen);  in do_ip_setsockopt()
1345 		if (optlen < 1)  in do_ip_setsockopt()
1351 		if (optlen < 1)  in do_ip_setsockopt()
1416 		unsigned int optlen)  in ip_setsockopt()  argument
1423 	err = do_ip_setsockopt(sk, level, optname, optval, optlen);  in ip_setsockopt()
1427 		err = bpfilter_ip_set_sockopt(sk, optname, optval, optlen);  in ip_setsockopt()
1435 		err = nf_setsockopt(sk, PF_INET, optname, optval, optlen);  in ip_setsockopt()
1457 		int __user *optlen, int len)  in ip_get_mcast_msfilter()  argument
1476 	if (put_user(GROUP_FILTER_SIZE(num), optlen) ||  in ip_get_mcast_msfilter()
1483 		int __user *optlen, int len)  in compat_ip_get_mcast_msfilter()  argument
1508 	if (put_user(len, optlen) ||  in compat_ip_get_mcast_msfilter()
1516 			    char __user *optval, int __user *optlen)  in do_ip_getsockopt()  argument
1527 		return ip_mroute_getsockopt(sk, optname, optval, optlen);  in do_ip_getsockopt()
1529 	if (get_user(len, optlen))  in do_ip_getsockopt()
1547 		opt->optlen = 0;  in do_ip_getsockopt()
1551 			       inet_opt->opt.optlen);  in do_ip_getsockopt()
1554 		if (opt->optlen == 0)  in do_ip_getsockopt()
1555 			return put_user(0, optlen);  in do_ip_getsockopt()
1559 		len = min_t(unsigned int, len, opt->optlen);  in do_ip_getsockopt()
1560 		if (put_user(len, optlen))  in do_ip_getsockopt()
1653 		if (put_user(len, optlen))  in do_ip_getsockopt()
1672 				   (struct ip_msfilter __user *)optval, optlen);  in do_ip_getsockopt()
1677 			err = compat_ip_get_mcast_msfilter(sk, optval, optlen,  in do_ip_getsockopt()
1680 			err = ip_get_mcast_msfilter(sk, optval, optlen, len);  in do_ip_getsockopt()
1716 		return put_user(len, optlen);  in do_ip_getsockopt()
1736 		if (put_user(len, optlen))  in do_ip_getsockopt()
1742 		if (put_user(len, optlen))  in do_ip_getsockopt()
1757 		  int optname, char __user *optval, int __user *optlen)  in ip_getsockopt()  argument
1761 	err = do_ip_getsockopt(sk, level, optname, optval, optlen);  in ip_getsockopt()
1766 		err = bpfilter_ip_get_sockopt(sk, optname, optval, optlen);  in ip_getsockopt()
1774 		if (get_user(len, optlen))  in ip_getsockopt()
1779 			err = put_user(len, optlen);  in ip_getsockopt()