1 files changed, 20 insertions, 7 deletions

diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index e982b5c1ee17..1e64dabbd232 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -23,6 +23,7 @@
 #include <linux/icmp.h>
 #include <linux/inetdevice.h>
 #include <linux/netdevice.h>
+#include <linux/slab.h>
 #include <net/sock.h>
 #include <net/ip.h>
 #include <net/icmp.h>
@@ -245,7 +246,7 @@ int ip_ra_control(struct sock *sk, unsigned char on,
 {
         struct ip_ra_chain *ra, *new_ra, **rap;
 
-        if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num == IPPROTO_RAW)
+        if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num == IPPROTO_RAW)
                 return -EINVAL;
 
         new_ra = on ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
@@ -451,7 +452,8 @@ static int do_ip_setsockopt(struct sock *sk, int level,
                              (1<<IP_TTL) | (1<<IP_HDRINCL) |
                              (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) |
                              (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
-                             (1<<IP_PASSSEC) | (1<<IP_TRANSPARENT))) ||
+                             (1<<IP_PASSSEC) | (1<<IP_TRANSPARENT) |
+                             (1<<IP_MINTTL))) ||
             optname == IP_MULTICAST_TTL ||
             optname == IP_MULTICAST_ALL ||
             optname == IP_MULTICAST_LOOP ||
@@ -480,7 +482,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
         case IP_OPTIONS:
         {
                 struct ip_options *opt = NULL;
-                if (optlen > 40 || optlen < 0)
+                if (optlen > 40)
                         goto e_inval;
                 err = ip_options_get_from_user(sock_net(sk), &opt,
                                                optval, optlen);
@@ -492,7 +494,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
                         if (sk->sk_family == PF_INET ||
                             (!((1 << sk->sk_state) &
                                (TCPF_LISTEN | TCPF_CLOSE)) &&
-                             inet->daddr != LOOPBACK4_IPV6)) {
+                             inet->inet_daddr != LOOPBACK4_IPV6)) {
 #endif
                                 if (inet->opt)
                                         icsk->icsk_ext_hdr_len -= inet->opt->optlen;
@@ -575,7 +577,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
                 inet->hdrincl = val ? 1 : 0;
                 break;
         case IP_MTU_DISCOVER:
-                if (val < 0 || val > 3)
+                if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_PROBE)
                         goto e_inval;
                 inet->pmtudisc = val;
                 break;
@@ -936,6 +938,14 @@ mc_msf_out:
                 inet->transparent = !!val;
                 break;
 
+        case IP_MINTTL:
+                if (optlen < 1)
+                        goto e_inval;
+                if (val < 0 || val > 255)
+                        goto e_inval;
+                inet->min_ttl = val;
+                break;
+
         default:
                 err = -ENOPROTOOPT;
                 break;
@@ -1180,8 +1190,8 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
                 if (inet->cmsg_flags & IP_CMSG_PKTINFO) {
                         struct in_pktinfo info;
 
-                        info.ipi_addr.s_addr = inet->rcv_saddr;
-                        info.ipi_spec_dst.s_addr = inet->rcv_saddr;
+                        info.ipi_addr.s_addr = inet->inet_rcv_saddr;
+                        info.ipi_spec_dst.s_addr = inet->inet_rcv_saddr;
                         info.ipi_ifindex = inet->mc_index;
                         put_cmsg(&msg, SOL_IP, IP_PKTINFO, sizeof(info), &info);
                 }
@@ -1198,6 +1208,9 @@ static int do_ip_getsockopt(struct sock *sk, int level, int optname,
         case IP_TRANSPARENT:
                 val = inet->transparent;
                 break;
+        case IP_MINTTL:
+                val = inet->min_ttl;
+                break;
         default:
                 release_sock(sk);
                 return -ENOPROTOOPT;