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path: root/net/ipv6/ipv6_sockglue.c
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Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
-rw-r--r--net/ipv6/ipv6_sockglue.c105
1 files changed, 90 insertions, 15 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 18a2719003c..edb58aff4ae 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -174,7 +174,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
}
if (ipv6_only_sock(sk) ||
- !ipv6_addr_v4mapped(&np->daddr)) {
+ !ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {
retv = -EADDRNOTAVAIL;
break;
}
@@ -343,7 +343,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
break;
case IPV6_TRANSPARENT:
- if (valbool && !capable(CAP_NET_ADMIN) && !capable(CAP_NET_RAW)) {
+ if (valbool && !ns_capable(net->user_ns, CAP_NET_ADMIN) &&
+ !ns_capable(net->user_ns, CAP_NET_RAW)) {
retv = -EPERM;
break;
}
@@ -381,7 +382,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
/* hop-by-hop / destination options are privileged option */
retv = -EPERM;
- if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
+ if (optname != IPV6_RTHDR && !ns_capable(net->user_ns, CAP_NET_RAW))
break;
opt = ipv6_renew_options(sk, np->opt, optname,
@@ -397,7 +398,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
if (optname == IPV6_RTHDR && opt && opt->srcrt) {
struct ipv6_rt_hdr *rthdr = opt->srcrt;
switch (rthdr->type) {
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6_MIP6)
case IPV6_SRCRT_TYPE_2:
if (rthdr->hdrlen != 2 ||
rthdr->segments_left != 1)
@@ -475,8 +476,8 @@ sticky_done:
msg.msg_controllen = optlen;
msg.msg_control = (void*)(opt+1);
- retv = datagram_send_ctl(net, sk, &msg, &fl6, opt, &junk, &junk,
- &junk);
+ retv = ip6_datagram_send_ctl(net, sk, &msg, &fl6, opt, &junk,
+ &junk, &junk);
if (retv)
goto done;
update:
@@ -516,6 +517,36 @@ done:
retv = 0;
break;
+ case IPV6_UNICAST_IF:
+ {
+ struct net_device *dev = NULL;
+ int ifindex;
+
+ if (optlen != sizeof(int))
+ goto e_inval;
+
+ ifindex = (__force int)ntohl((__force __be32)val);
+ if (ifindex == 0) {
+ np->ucast_oif = 0;
+ retv = 0;
+ break;
+ }
+
+ dev = dev_get_by_index(net, ifindex);
+ retv = -EADDRNOTAVAIL;
+ if (!dev)
+ break;
+ dev_put(dev);
+
+ retv = -EINVAL;
+ if (sk->sk_bound_dev_if)
+ break;
+
+ np->ucast_oif = ifindex;
+ retv = 0;
+ break;
+ }
+
case IPV6_MULTICAST_IF:
if (sk->sk_type == SOCK_STREAM)
break;
@@ -648,7 +679,6 @@ done:
}
case MCAST_MSFILTER:
{
- extern int sysctl_mld_max_msf;
struct group_filter *gsf;
if (optlen < GROUP_FILTER_SIZE(0))
@@ -692,7 +722,7 @@ done:
case IPV6_MTU_DISCOVER:
if (optlen < sizeof(int))
goto e_inval;
- if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_PROBE)
+ if (val < IPV6_PMTUDISC_DONT || val > IPV6_PMTUDISC_OMIT)
goto e_inval;
np->pmtudisc = val;
retv = 0;
@@ -725,7 +755,7 @@ done:
case IPV6_IPSEC_POLICY:
case IPV6_XFRM_POLICY:
retv = -EPERM;
- if (!capable(CAP_NET_ADMIN))
+ if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
break;
retv = xfrm_user_policy(sk, optname, optval, optlen);
break;
@@ -798,6 +828,7 @@ pref_skip_coa:
if (val < 0 || val > 255)
goto e_inval;
np->min_hopcount = val;
+ retv = 0;
break;
case IPV6_DONTFRAG:
np->dontfrag = valbool;
@@ -913,7 +944,7 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
}
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen, unsigned flags)
+ char __user *optval, int __user *optlen, unsigned int flags)
{
struct ipv6_pinfo *np = inet6_sk(sk);
int len;
@@ -971,33 +1002,42 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
release_sock(sk);
if (skb) {
- int err = datagram_recv_ctl(sk, &msg, skb);
+ ip6_datagram_recv_ctl(sk, &msg, skb);
kfree_skb(skb);
- if (err)
- return err;
} else {
if (np->rxopt.bits.rxinfo) {
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
np->sticky_pktinfo.ipi6_ifindex;
- src_info.ipi6_addr = np->mcast_oif ? np->daddr : np->sticky_pktinfo.ipi6_addr;
+ src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr : np->sticky_pktinfo.ipi6_addr;
put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxhlim) {
int hlim = np->mcast_hops;
put_cmsg(&msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
}
+ if (np->rxopt.bits.rxtclass) {
+ int tclass = (int)ip6_tclass(np->rcv_flowinfo);
+
+ put_cmsg(&msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
+ }
if (np->rxopt.bits.rxoinfo) {
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
np->sticky_pktinfo.ipi6_ifindex;
- src_info.ipi6_addr = np->mcast_oif ? np->daddr : np->sticky_pktinfo.ipi6_addr;
+ src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr :
+ np->sticky_pktinfo.ipi6_addr;
put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxohlim) {
int hlim = np->mcast_hops;
put_cmsg(&msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
}
+ if (np->rxopt.bits.rxflow) {
+ __be32 flowinfo = np->rcv_flowinfo;
+
+ put_cmsg(&msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
+ }
}
len -= msg.msg_controllen;
return put_user(len, optlen);
@@ -1160,6 +1200,10 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
val = np->mcast_oif;
break;
+ case IPV6_UNICAST_IF:
+ val = (__force int)htonl((__u32) np->ucast_oif);
+ break;
+
case IPV6_MTU_DISCOVER:
val = np->pmtudisc;
break;
@@ -1172,6 +1216,37 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
val = np->sndflow;
break;
+ case IPV6_FLOWLABEL_MGR:
+ {
+ struct in6_flowlabel_req freq;
+ int flags;
+
+ if (len < sizeof(freq))
+ return -EINVAL;
+
+ if (copy_from_user(&freq, optval, sizeof(freq)))
+ return -EFAULT;
+
+ if (freq.flr_action != IPV6_FL_A_GET)
+ return -EINVAL;
+
+ len = sizeof(freq);
+ flags = freq.flr_flags;
+
+ memset(&freq, 0, sizeof(freq));
+
+ val = ipv6_flowlabel_opt_get(sk, &freq, flags);
+ if (val < 0)
+ return val;
+
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &freq, len))
+ return -EFAULT;
+
+ return 0;
+ }
+
case IPV6_ADDR_PREFERENCES:
val = 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 23:04:34 +0000