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Diffstat (limited to 'net/ipv6/ndisc.c')
-rw-r--r--net/ipv6/ndisc.c48
1 files changed, 15 insertions, 33 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 176b469322ac..cbb863d66481 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -15,6 +15,7 @@
/*
* Changes:
*
+ * Alexey I. Froloff : RFC6106 (DNSSL) support
* Pierre Ynard : export userland ND options
* through netlink (RDNSS support)
* Lars Fenneberg : fixed MTU setting on receipt
@@ -228,7 +229,8 @@ static struct nd_opt_hdr *ndisc_next_option(struct nd_opt_hdr *cur,
static inline int ndisc_is_useropt(struct nd_opt_hdr *opt)
{
- return opt->nd_opt_type == ND_OPT_RDNSS;
+ return opt->nd_opt_type == ND_OPT_RDNSS ||
+ opt->nd_opt_type == ND_OPT_DNSSL;
}
static struct nd_opt_hdr *ndisc_next_useropt(struct nd_opt_hdr *cur,
@@ -264,7 +266,7 @@ static struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len,
case ND_OPT_REDIRECT_HDR:
if (ndopts->nd_opt_array[nd_opt->nd_opt_type]) {
ND_PRINTK2(KERN_WARNING
- "%s(): duplicated ND6 option found: type=%d\n",
+ "%s: duplicated ND6 option found: type=%d\n",
__func__,
nd_opt->nd_opt_type);
} else {
@@ -295,7 +297,7 @@ static struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len,
* protocol.
*/
ND_PRINTK2(KERN_NOTICE
- "%s(): ignored unsupported option; type=%d, len=%d\n",
+ "%s: ignored unsupported option; type=%d, len=%d\n",
__func__,
nd_opt->nd_opt_type, nd_opt->nd_opt_len);
}
@@ -325,9 +327,6 @@ int ndisc_mc_map(const struct in6_addr *addr, char *buf, struct net_device *dev,
case ARPHRD_FDDI:
ipv6_eth_mc_map(addr, buf);
return 0;
- case ARPHRD_IEEE802_TR:
- ipv6_tr_mc_map(addr,buf);
- return 0;
case ARPHRD_ARCNET:
ipv6_arcnet_mc_map(addr, buf);
return 0;
@@ -457,7 +456,7 @@ struct sk_buff *ndisc_build_skb(struct net_device *dev,
1, &err);
if (!skb) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 ND: %s() failed to allocate an skb, err=%d.\n",
+ "ICMPv6 ND: %s failed to allocate an skb, err=%d.\n",
__func__, err);
return NULL;
}
@@ -694,7 +693,7 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb)
if ((probes -= neigh->parms->ucast_probes) < 0) {
if (!(neigh->nud_state & NUD_VALID)) {
- ND_PRINTK1(KERN_DEBUG "%s(): trying to ucast probe in NUD_INVALID: %pI6\n",
+ ND_PRINTK1(KERN_DEBUG "%s: trying to ucast probe in NUD_INVALID: %pI6\n",
__func__, target);
}
ndisc_send_ns(dev, neigh, target, target, saddr);
@@ -793,20 +792,6 @@ static void ndisc_recv_ns(struct sk_buff *skb)
if (ifp->flags & (IFA_F_TENTATIVE|IFA_F_OPTIMISTIC)) {
if (dad) {
- if (dev->type == ARPHRD_IEEE802_TR) {
- const unsigned char *sadr;
- sadr = skb_mac_header(skb);
- if (((sadr[8] ^ dev->dev_addr[0]) & 0x7f) == 0 &&
- sadr[9] == dev->dev_addr[1] &&
- sadr[10] == dev->dev_addr[2] &&
- sadr[11] == dev->dev_addr[3] &&
- sadr[12] == dev->dev_addr[4] &&
- sadr[13] == dev->dev_addr[5]) {
- /* looped-back to us */
- goto out;
- }
- }
-
/*
* We are colliding with another node
* who is doing DAD
@@ -1099,8 +1084,9 @@ static void ndisc_ra_useropt(struct sk_buff *ra, struct nd_opt_hdr *opt)
memcpy(ndmsg + 1, opt, opt->nd_opt_len << 3);
- NLA_PUT(skb, NDUSEROPT_SRCADDR, sizeof(struct in6_addr),
- &ipv6_hdr(ra)->saddr);
+ if (nla_put(skb, NDUSEROPT_SRCADDR, sizeof(struct in6_addr),
+ &ipv6_hdr(ra)->saddr))
+ goto nla_put_failure;
nlmsg_end(skb, nlh);
rtnl_notify(skb, net, 0, RTNLGRP_ND_USEROPT, NULL, GFP_ATOMIC);
@@ -1227,7 +1213,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr);
if (!neigh) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 RA: %s() got default router without neighbour.\n",
+ "ICMPv6 RA: %s got default router without neighbour.\n",
__func__);
dst_release(&rt->dst);
return;
@@ -1245,7 +1231,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
rt = rt6_add_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev, pref);
if (rt == NULL) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 RA: %s() failed to add default route.\n",
+ "ICMPv6 RA: %s failed to add default route.\n",
__func__);
return;
}
@@ -1253,7 +1239,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr);
if (neigh == NULL) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 RA: %s() got default router without neighbour.\n",
+ "ICMPv6 RA: %s got default router without neighbour.\n",
__func__);
dst_release(&rt->dst);
return;
@@ -1602,7 +1588,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
1, &err);
if (buff == NULL) {
ND_PRINTK0(KERN_ERR
- "ICMPv6 Redirect: %s() failed to allocate an skb, err=%d.\n",
+ "ICMPv6 Redirect: %s failed to allocate an skb, err=%d.\n",
__func__, err);
goto release;
}
@@ -1764,11 +1750,7 @@ static void ndisc_warn_deprecated_sysctl(struct ctl_table *ctl,
static int warned;
if (strcmp(warncomm, current->comm) && warned < 5) {
strcpy(warncomm, current->comm);
- printk(KERN_WARNING
- "process `%s' is using deprecated sysctl (%s) "
- "net.ipv6.neigh.%s.%s; "
- "Use net.ipv6.neigh.%s.%s_ms "
- "instead.\n",
+ pr_warn("process `%s' is using deprecated sysctl (%s) net.ipv6.neigh.%s.%s - use net.ipv6.neigh.%s.%s_ms instead\n",
warncomm, func,
dev_name, ctl->procname,
dev_name, ctl->procname);
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-08 19:22:41 +0000