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Diffstat (limited to 'net/ipv6/ip6_gre.c')
-rw-r--r--net/ipv6/ip6_gre.c313
1 files changed, 141 insertions, 172 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 89f5f0f3f5d6..c82a75510c0e 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -43,6 +43,7 @@
#include <net/xfrm.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
+#include <net/netdev_lock.h>
#include <net/rtnetlink.h>
#include <net/ipv6.h>
@@ -110,8 +111,32 @@ static u32 HASH_ADDR(const struct in6_addr *addr)
#define tunnels_l tunnels[1]
#define tunnels_wc tunnels[0]
-/* Given src, dst and key, find appropriate for input tunnel. */
+static bool ip6gre_tunnel_match(struct ip6_tnl *t, int dev_type, int link,
+ int *cand_score, struct ip6_tnl **ret)
+{
+ int score = 0;
+
+ if (t->dev->type != ARPHRD_IP6GRE &&
+ t->dev->type != dev_type)
+ return false;
+
+ if (t->parms.link != link)
+ score |= 1;
+ if (t->dev->type != dev_type)
+ score |= 2;
+ if (score == 0) {
+ *ret = t;
+ return true;
+ }
+
+ if (score < *cand_score) {
+ *ret = t;
+ *cand_score = score;
+ }
+ return false;
+}
+/* Given src, dst and key, find appropriate for input tunnel. */
static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
const struct in6_addr *remote, const struct in6_addr *local,
__be32 key, __be16 gre_proto)
@@ -126,8 +151,8 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
gre_proto == htons(ETH_P_ERSPAN) ||
gre_proto == htons(ETH_P_ERSPAN2)) ?
ARPHRD_ETHER : ARPHRD_IP6GRE;
- int score, cand_score = 4;
struct net_device *ndev;
+ int cand_score = 4;
for_each_ip_tunnel_rcu(t, ign->tunnels_r_l[h0 ^ h1]) {
if (!ipv6_addr_equal(local, &t->parms.laddr) ||
@@ -136,22 +161,8 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
!(t->dev->flags & IFF_UP))
continue;
- if (t->dev->type != ARPHRD_IP6GRE &&
- t->dev->type != dev_type)
- continue;
-
- score = 0;
- if (t->parms.link != link)
- score |= 1;
- if (t->dev->type != dev_type)
- score |= 2;
- if (score == 0)
- return t;
-
- if (score < cand_score) {
- cand = t;
- cand_score = score;
- }
+ if (ip6gre_tunnel_match(t, dev_type, link, &cand_score, &cand))
+ return cand;
}
for_each_ip_tunnel_rcu(t, ign->tunnels_r[h0 ^ h1]) {
@@ -160,22 +171,8 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
!(t->dev->flags & IFF_UP))
continue;
- if (t->dev->type != ARPHRD_IP6GRE &&
- t->dev->type != dev_type)
- continue;
-
- score = 0;
- if (t->parms.link != link)
- score |= 1;
- if (t->dev->type != dev_type)
- score |= 2;
- if (score == 0)
- return t;
-
- if (score < cand_score) {
- cand = t;
- cand_score = score;
- }
+ if (ip6gre_tunnel_match(t, dev_type, link, &cand_score, &cand))
+ return cand;
}
for_each_ip_tunnel_rcu(t, ign->tunnels_l[h1]) {
@@ -186,22 +183,8 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
!(t->dev->flags & IFF_UP))
continue;
- if (t->dev->type != ARPHRD_IP6GRE &&
- t->dev->type != dev_type)
- continue;
-
- score = 0;
- if (t->parms.link != link)
- score |= 1;
- if (t->dev->type != dev_type)
- score |= 2;
- if (score == 0)
- return t;
-
- if (score < cand_score) {
- cand = t;
- cand_score = score;
- }
+ if (ip6gre_tunnel_match(t, dev_type, link, &cand_score, &cand))
+ return cand;
}
for_each_ip_tunnel_rcu(t, ign->tunnels_wc[h1]) {
@@ -209,22 +192,8 @@ static struct ip6_tnl *ip6gre_tunnel_lookup(struct net_device *dev,
!(t->dev->flags & IFF_UP))
continue;
- if (t->dev->type != ARPHRD_IP6GRE &&
- t->dev->type != dev_type)
- continue;
-
- score = 0;
- if (t->parms.link != link)
- score |= 1;
- if (t->dev->type != dev_type)
- score |= 2;
- if (score == 0)
- return t;
-
- if (score < cand_score) {
- cand = t;
- cand_score = score;
- }
+ if (ip6gre_tunnel_match(t, dev_type, link, &cand_score, &cand))
+ return cand;
}
if (cand)
@@ -360,9 +329,9 @@ static struct ip6_tnl *ip6gre_tunnel_locate(struct net *net,
if (parms->name[0]) {
if (!dev_valid_name(parms->name))
return NULL;
- strscpy(name, parms->name, IFNAMSIZ);
+ strscpy(name, parms->name);
} else {
- strcpy(name, "ip6gre%d");
+ strscpy(name, "ip6gre%d");
}
dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN,
ip6gre_tunnel_setup);
@@ -496,11 +465,11 @@ static int ip6gre_rcv(struct sk_buff *skb, const struct tnl_ptk_info *tpi)
tpi->proto);
if (tunnel) {
if (tunnel->parms.collect_md) {
+ IP_TUNNEL_DECLARE_FLAGS(flags);
struct metadata_dst *tun_dst;
__be64 tun_id;
- __be16 flags;
- flags = tpi->flags;
+ ip_tunnel_flags_copy(flags, tpi->flags);
tun_id = key32_to_tunnel_id(tpi->key);
tun_dst = ipv6_tun_rx_dst(skb, flags, tun_id, 0);
@@ -528,6 +497,9 @@ static int ip6erspan_rcv(struct sk_buff *skb,
struct ip6_tnl *tunnel;
u8 ver;
+ if (unlikely(!pskb_may_pull(skb, sizeof(*ershdr))))
+ return PACKET_REJECT;
+
ipv6h = ipv6_hdr(skb);
ershdr = (struct erspan_base_hdr *)skb->data;
ver = ershdr->ver;
@@ -548,14 +520,14 @@ static int ip6erspan_rcv(struct sk_buff *skb,
if (tunnel->parms.collect_md) {
struct erspan_metadata *pkt_md, *md;
+ IP_TUNNEL_DECLARE_FLAGS(flags);
struct metadata_dst *tun_dst;
struct ip_tunnel_info *info;
unsigned char *gh;
__be64 tun_id;
- __be16 flags;
- tpi->flags |= TUNNEL_KEY;
- flags = tpi->flags;
+ __set_bit(IP_TUNNEL_KEY_BIT, tpi->flags);
+ ip_tunnel_flags_copy(flags, tpi->flags);
tun_id = key32_to_tunnel_id(tpi->key);
tun_dst = ipv6_tun_rx_dst(skb, flags, tun_id,
@@ -577,7 +549,8 @@ static int ip6erspan_rcv(struct sk_buff *skb,
md2 = &md->u.md2;
memcpy(md2, pkt_md, ver == 1 ? ERSPAN_V1_MDSIZE :
ERSPAN_V2_MDSIZE);
- info->key.tun_flags |= TUNNEL_ERSPAN_OPT;
+ __set_bit(IP_TUNNEL_ERSPAN_OPT_BIT,
+ info->key.tun_flags);
info->options_len = sizeof(*md);
ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);
@@ -745,8 +718,8 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
__u32 *pmtu, __be16 proto)
{
struct ip6_tnl *tunnel = netdev_priv(dev);
+ IP_TUNNEL_DECLARE_FLAGS(flags);
__be16 protocol;
- __be16 flags;
if (dev->type == ARPHRD_ETHER)
IPCB(skb)->flags = 0;
@@ -778,8 +751,11 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
fl6->fl6_gre_key = tunnel_id_to_key32(key->tun_id);
dsfield = key->tos;
- flags = key->tun_flags &
- (TUNNEL_CSUM | TUNNEL_KEY | TUNNEL_SEQ);
+ ip_tunnel_flags_zero(flags);
+ __set_bit(IP_TUNNEL_CSUM_BIT, flags);
+ __set_bit(IP_TUNNEL_KEY_BIT, flags);
+ __set_bit(IP_TUNNEL_SEQ_BIT, flags);
+ ip_tunnel_flags_and(flags, flags, key->tun_flags);
tun_hlen = gre_calc_hlen(flags);
if (skb_cow_head(skb, dev->needed_headroom ?: tun_hlen + tunnel->encap_hlen))
@@ -788,19 +764,21 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
gre_build_header(skb, tun_hlen,
flags, protocol,
tunnel_id_to_key32(tun_info->key.tun_id),
- (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno))
- : 0);
+ test_bit(IP_TUNNEL_SEQ_BIT, flags) ?
+ htonl(atomic_fetch_inc(&tunnel->o_seqno)) :
+ 0);
} else {
if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen))
return -ENOMEM;
- flags = tunnel->parms.o_flags;
+ ip_tunnel_flags_copy(flags, tunnel->parms.o_flags);
gre_build_header(skb, tunnel->tun_hlen, flags,
protocol, tunnel->parms.o_key,
- (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno))
- : 0);
+ test_bit(IP_TUNNEL_SEQ_BIT, flags) ?
+ htonl(atomic_fetch_inc(&tunnel->o_seqno)) :
+ 0);
}
return ip6_tnl_xmit(skb, dev, dsfield, fl6, encap_limit, pmtu,
@@ -822,7 +800,8 @@ static inline int ip6gre_xmit_ipv4(struct sk_buff *skb, struct net_device *dev)
prepare_ip6gre_xmit_ipv4(skb, dev, &fl6,
&dsfield, &encap_limit);
- err = gre_handle_offloads(skb, !!(t->parms.o_flags & TUNNEL_CSUM));
+ err = gre_handle_offloads(skb, test_bit(IP_TUNNEL_CSUM_BIT,
+ t->parms.o_flags));
if (err)
return -1;
@@ -856,7 +835,8 @@ static inline int ip6gre_xmit_ipv6(struct sk_buff *skb, struct net_device *dev)
prepare_ip6gre_xmit_ipv6(skb, dev, &fl6, &dsfield, &encap_limit))
return -1;
- if (gre_handle_offloads(skb, !!(t->parms.o_flags & TUNNEL_CSUM)))
+ if (gre_handle_offloads(skb, test_bit(IP_TUNNEL_CSUM_BIT,
+ t->parms.o_flags)))
return -1;
err = __gre6_xmit(skb, dev, dsfield, &fl6, encap_limit,
@@ -883,7 +863,8 @@ static int ip6gre_xmit_other(struct sk_buff *skb, struct net_device *dev)
prepare_ip6gre_xmit_other(skb, dev, &fl6, &dsfield, &encap_limit))
return -1;
- err = gre_handle_offloads(skb, !!(t->parms.o_flags & TUNNEL_CSUM));
+ err = gre_handle_offloads(skb, test_bit(IP_TUNNEL_CSUM_BIT,
+ t->parms.o_flags));
if (err)
return err;
err = __gre6_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu, skb->protocol);
@@ -936,6 +917,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
struct ip_tunnel_info *tun_info = NULL;
struct ip6_tnl *t = netdev_priv(dev);
struct dst_entry *dst = skb_dst(skb);
+ IP_TUNNEL_DECLARE_FLAGS(flags) = { };
bool truncate = false;
int encap_limit = -1;
__u8 dsfield = false;
@@ -955,11 +937,12 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
goto tx_err;
if (skb->len > dev->mtu + dev->hard_header_len) {
- pskb_trim(skb, dev->mtu + dev->hard_header_len);
+ if (pskb_trim(skb, dev->mtu + dev->hard_header_len))
+ goto tx_err;
truncate = true;
}
- nhoff = skb_network_header(skb) - skb_mac_header(skb);
+ nhoff = skb_network_offset(skb);
if (skb->protocol == htons(ETH_P_IP) &&
(ntohs(ip_hdr(skb)->tot_len) > skb->len - nhoff))
truncate = true;
@@ -968,7 +951,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
int thoff;
if (skb_transport_header_was_set(skb))
- thoff = skb_transport_header(skb) - skb_mac_header(skb);
+ thoff = skb_transport_offset(skb);
else
thoff = nhoff + sizeof(struct ipv6hdr);
if (ntohs(ipv6_hdr(skb)->payload_len) > skb->len - thoff)
@@ -978,7 +961,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
if (skb_cow_head(skb, dev->needed_headroom ?: t->hlen))
goto tx_err;
- t->parms.o_flags &= ~TUNNEL_KEY;
+ __clear_bit(IP_TUNNEL_KEY_BIT, t->parms.o_flags);
IPCB(skb)->flags = 0;
/* For collect_md mode, derive fl6 from the tunnel key,
@@ -1003,7 +986,8 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
fl6.fl6_gre_key = tunnel_id_to_key32(key->tun_id);
dsfield = key->tos;
- if (!(tun_info->key.tun_flags & TUNNEL_ERSPAN_OPT))
+ if (!test_bit(IP_TUNNEL_ERSPAN_OPT_BIT,
+ tun_info->key.tun_flags))
goto tx_err;
if (tun_info->options_len < sizeof(*md))
goto tx_err;
@@ -1015,12 +999,14 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
ntohl(tun_id),
ntohl(md->u.index), truncate,
false);
+ proto = htons(ETH_P_ERSPAN);
} else if (md->version == 2) {
erspan_build_header_v2(skb,
ntohl(tun_id),
md->u.md2.dir,
get_hwid(&md->u.md2),
truncate, false);
+ proto = htons(ETH_P_ERSPAN2);
} else {
goto tx_err;
}
@@ -1043,30 +1029,35 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
break;
}
- if (t->parms.erspan_ver == 1)
+ if (t->parms.erspan_ver == 1) {
erspan_build_header(skb, ntohl(t->parms.o_key),
t->parms.index,
truncate, false);
- else if (t->parms.erspan_ver == 2)
+ proto = htons(ETH_P_ERSPAN);
+ } else if (t->parms.erspan_ver == 2) {
erspan_build_header_v2(skb, ntohl(t->parms.o_key),
t->parms.dir,
t->parms.hwid,
truncate, false);
- else
+ proto = htons(ETH_P_ERSPAN2);
+ } else {
goto tx_err;
+ }
fl6.daddr = t->parms.raddr;
}
/* Push GRE header. */
- proto = (t->parms.erspan_ver == 1) ? htons(ETH_P_ERSPAN)
- : htons(ETH_P_ERSPAN2);
- gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(atomic_fetch_inc(&t->o_seqno)));
+ __set_bit(IP_TUNNEL_SEQ_BIT, flags);
+ gre_build_header(skb, 8, flags, proto, 0,
+ htonl(atomic_fetch_inc(&t->o_seqno)));
/* TooBig packet may have updated dst->dev's mtu */
- if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)
- dst->ops->update_pmtu(dst, NULL, skb, dst->dev->mtu, false);
-
+ if (!t->parms.collect_md && dst) {
+ mtu = READ_ONCE(dst_dev(dst)->mtu);
+ if (dst_mtu(dst) > mtu)
+ dst->ops->update_pmtu(dst, NULL, skb, mtu, false);
+ }
err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
NEXTHDR_GRE);
if (err != 0) {
@@ -1204,8 +1195,8 @@ static void ip6gre_tnl_copy_tnl_parm(struct ip6_tnl *t,
t->parms.proto = p->proto;
t->parms.i_key = p->i_key;
t->parms.o_key = p->o_key;
- t->parms.i_flags = p->i_flags;
- t->parms.o_flags = p->o_flags;
+ ip_tunnel_flags_copy(t->parms.i_flags, p->i_flags);
+ ip_tunnel_flags_copy(t->parms.o_flags, p->o_flags);
t->parms.fwmark = p->fwmark;
t->parms.erspan_ver = p->erspan_ver;
t->parms.index = p->index;
@@ -1234,8 +1225,8 @@ static void ip6gre_tnl_parm_from_user(struct __ip6_tnl_parm *p,
p->link = u->link;
p->i_key = u->i_key;
p->o_key = u->o_key;
- p->i_flags = gre_flags_to_tnl_flags(u->i_flags);
- p->o_flags = gre_flags_to_tnl_flags(u->o_flags);
+ gre_flags_to_tnl_flags(p->i_flags, u->i_flags);
+ gre_flags_to_tnl_flags(p->o_flags, u->o_flags);
memcpy(p->name, u->name, sizeof(u->name));
}
@@ -1387,7 +1378,7 @@ static int ip6gre_header(struct sk_buff *skb, struct net_device *dev,
ipv6h->daddr = t->parms.raddr;
p = (__be16 *)(ipv6h + 1);
- p[0] = t->parms.o_flags;
+ p[0] = ip_tunnel_flags_to_be16(t->parms.o_flags);
p[1] = htons(type);
/*
@@ -1414,7 +1405,6 @@ static const struct net_device_ops ip6gre_netdev_ops = {
.ndo_start_xmit = ip6gre_tunnel_xmit,
.ndo_siocdevprivate = ip6gre_tunnel_siocdevprivate,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
@@ -1424,7 +1414,6 @@ static void ip6gre_dev_free(struct net_device *dev)
gro_cells_destroy(&t->gro_cells);
dst_cache_destroy(&t->dst_cache);
- free_percpu(dev->tstats);
}
static void ip6gre_tunnel_setup(struct net_device *dev)
@@ -1433,6 +1422,7 @@ static void ip6gre_tunnel_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
+ dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
dev->type = ARPHRD_IP6GRE;
dev->flags |= IFF_NOARP;
@@ -1451,23 +1441,23 @@ static void ip6gre_tunnel_setup(struct net_device *dev)
static void ip6gre_tnl_init_features(struct net_device *dev)
{
struct ip6_tnl *nt = netdev_priv(dev);
- __be16 flags;
- dev->features |= GRE6_FEATURES | NETIF_F_LLTX;
+ dev->features |= GRE6_FEATURES;
dev->hw_features |= GRE6_FEATURES;
- flags = nt->parms.o_flags;
-
/* TCP offload with GRE SEQ is not supported, nor can we support 2
* levels of outer headers requiring an update.
*/
- if (flags & TUNNEL_SEQ)
+ if (test_bit(IP_TUNNEL_SEQ_BIT, nt->parms.o_flags))
return;
- if (flags & TUNNEL_CSUM && nt->encap.type != TUNNEL_ENCAP_NONE)
+ if (test_bit(IP_TUNNEL_CSUM_BIT, nt->parms.o_flags) &&
+ nt->encap.type != TUNNEL_ENCAP_NONE)
return;
dev->features |= NETIF_F_GSO_SOFTWARE;
dev->hw_features |= NETIF_F_GSO_SOFTWARE;
+
+ dev->lltx = true;
}
static int ip6gre_tunnel_init_common(struct net_device *dev)
@@ -1479,16 +1469,11 @@ static int ip6gre_tunnel_init_common(struct net_device *dev)
tunnel = netdev_priv(dev);
tunnel->dev = dev;
- tunnel->net = dev_net(dev);
- strcpy(tunnel->parms.name, dev->name);
-
- dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!dev->tstats)
- return -ENOMEM;
+ strscpy(tunnel->parms.name, dev->name);
ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);
if (ret)
- goto cleanup_alloc_pcpu_stats;
+ return ret;
ret = gro_cells_init(&tunnel->gro_cells, dev);
if (ret)
@@ -1507,13 +1492,11 @@ static int ip6gre_tunnel_init_common(struct net_device *dev)
ip6gre_tnl_init_features(dev);
netdev_hold(dev, &tunnel->dev_tracker, GFP_KERNEL);
+ netdev_lockdep_set_classes(dev);
return 0;
cleanup_dst_cache_init:
dst_cache_destroy(&tunnel->dst_cache);
-cleanup_alloc_pcpu_stats:
- free_percpu(dev->tstats);
- dev->tstats = NULL;
return ret;
}
@@ -1546,7 +1529,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
tunnel->dev = dev;
tunnel->net = dev_net(dev);
- strcpy(tunnel->parms.name, dev->name);
+ strscpy(tunnel->parms.name, dev->name);
tunnel->hlen = sizeof(struct ipv6hdr) + 4;
}
@@ -1557,7 +1540,7 @@ static struct inet6_protocol ip6gre_protocol __read_mostly = {
.flags = INET6_PROTO_FINAL,
};
-static void ip6gre_destroy_tunnels(struct net *net, struct list_head *head)
+static void __net_exit ip6gre_exit_rtnl_net(struct net *net, struct list_head *head)
{
struct ip6gre_net *ign = net_generic(net, ip6gre_net_id);
struct net_device *dev, *aux;
@@ -1574,16 +1557,16 @@ static void ip6gre_destroy_tunnels(struct net *net, struct list_head *head)
for (h = 0; h < IP6_GRE_HASH_SIZE; h++) {
struct ip6_tnl *t;
- t = rtnl_dereference(ign->tunnels[prio][h]);
+ t = rtnl_net_dereference(net, ign->tunnels[prio][h]);
while (t) {
/* If dev is in the same netns, it has already
* been added to the list by the previous loop.
*/
if (!net_eq(dev_net(t->dev), net))
- unregister_netdevice_queue(t->dev,
- head);
- t = rtnl_dereference(t->next);
+ unregister_netdevice_queue(t->dev, head);
+
+ t = rtnl_net_dereference(net, t->next);
}
}
}
@@ -1608,8 +1591,7 @@ static int __net_init ip6gre_init_net(struct net *net)
/* FB netdevice is special: we have one, and only one per netns.
* Allowing to move it to another netns is clearly unsafe.
*/
- ign->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;
-
+ ign->fb_tunnel_dev->netns_immutable = true;
ip6gre_fb_tunnel_init(ign->fb_tunnel_dev);
ign->fb_tunnel_dev->rtnl_link_ops = &ip6gre_link_ops;
@@ -1628,21 +1610,9 @@ err_alloc_dev:
return err;
}
-static void __net_exit ip6gre_exit_batch_net(struct list_head *net_list)
-{
- struct net *net;
- LIST_HEAD(list);
-
- rtnl_lock();
- list_for_each_entry(net, net_list, exit_list)
- ip6gre_destroy_tunnels(net, &list);
- unregister_netdevice_many(&list);
- rtnl_unlock();
-}
-
static struct pernet_operations ip6gre_net_ops = {
.init = ip6gre_init_net,
- .exit_batch = ip6gre_exit_batch_net,
+ .exit_rtnl = ip6gre_exit_rtnl_net,
.id = &ip6gre_net_id,
.size = sizeof(struct ip6gre_net),
};
@@ -1789,12 +1759,12 @@ static void ip6gre_netlink_parms(struct nlattr *data[],
parms->link = nla_get_u32(data[IFLA_GRE_LINK]);
if (data[IFLA_GRE_IFLAGS])
- parms->i_flags = gre_flags_to_tnl_flags(
- nla_get_be16(data[IFLA_GRE_IFLAGS]));
+ gre_flags_to_tnl_flags(parms->i_flags,
+ nla_get_be16(data[IFLA_GRE_IFLAGS]));
if (data[IFLA_GRE_OFLAGS])
- parms->o_flags = gre_flags_to_tnl_flags(
- nla_get_be16(data[IFLA_GRE_OFLAGS]));
+ gre_flags_to_tnl_flags(parms->o_flags,
+ nla_get_be16(data[IFLA_GRE_OFLAGS]));
if (data[IFLA_GRE_IKEY])
parms->i_key = nla_get_be32(data[IFLA_GRE_IKEY]);
@@ -1847,7 +1817,6 @@ static const struct net_device_ops ip6gre_tap_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
@@ -1873,16 +1842,11 @@ static int ip6erspan_tap_init(struct net_device *dev)
tunnel = netdev_priv(dev);
tunnel->dev = dev;
- tunnel->net = dev_net(dev);
- strcpy(tunnel->parms.name, dev->name);
-
- dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!dev->tstats)
- return -ENOMEM;
+ strscpy(tunnel->parms.name, dev->name);
ret = dst_cache_init(&tunnel->dst_cache, GFP_KERNEL);
if (ret)
- goto cleanup_alloc_pcpu_stats;
+ return ret;
ret = gro_cells_init(&tunnel->gro_cells, dev);
if (ret)
@@ -1899,13 +1863,11 @@ static int ip6erspan_tap_init(struct net_device *dev)
ip6erspan_tnl_link_config(tunnel, 1);
netdev_hold(dev, &tunnel->dev_tracker, GFP_KERNEL);
+ netdev_lockdep_set_classes(dev);
return 0;
cleanup_dst_cache_init:
dst_cache_destroy(&tunnel->dst_cache);
-cleanup_alloc_pcpu_stats:
- free_percpu(dev->tstats);
- dev->tstats = NULL;
return ret;
}
@@ -1916,7 +1878,6 @@ static const struct net_device_ops ip6erspan_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = ip6_tnl_change_mtu,
- .ndo_get_stats64 = dev_get_tstats64,
.ndo_get_iflink = ip6_tnl_get_iflink,
};
@@ -1930,6 +1891,7 @@ static void ip6gre_tap_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
+ dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
netif_keep_dst(dev);
@@ -1968,7 +1930,7 @@ static bool ip6gre_netlink_encap_parms(struct nlattr *data[],
return ret;
}
-static int ip6gre_newlink_common(struct net *src_net, struct net_device *dev,
+static int ip6gre_newlink_common(struct net *link_net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[],
struct netlink_ext_ack *extack)
{
@@ -1989,7 +1951,7 @@ static int ip6gre_newlink_common(struct net *src_net, struct net_device *dev,
eth_hw_addr_random(dev);
nt->dev = dev;
- nt->net = dev_net(dev);
+ nt->net = link_net;
err = register_netdevice(dev);
if (err)
@@ -2002,12 +1964,14 @@ out:
return err;
}
-static int ip6gre_newlink(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[],
+static int ip6gre_newlink(struct net_device *dev,
+ struct rtnl_newlink_params *params,
struct netlink_ext_ack *extack)
{
+ struct net *net = params->link_net ? : dev_net(dev);
struct ip6_tnl *nt = netdev_priv(dev);
- struct net *net = dev_net(dev);
+ struct nlattr **data = params->data;
+ struct nlattr **tb = params->tb;
struct ip6gre_net *ign;
int err;
@@ -2022,7 +1986,7 @@ static int ip6gre_newlink(struct net *src_net, struct net_device *dev,
return -EEXIST;
}
- err = ip6gre_newlink_common(src_net, dev, tb, data, extack);
+ err = ip6gre_newlink_common(net, dev, tb, data, extack);
if (!err) {
ip6gre_tnl_link_config(nt, !tb[IFLA_MTU]);
ip6gre_tunnel_link_md(ign, nt);
@@ -2140,11 +2104,13 @@ static int ip6gre_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
struct __ip6_tnl_parm *p = &t->parms;
- __be16 o_flags = p->o_flags;
+ IP_TUNNEL_DECLARE_FLAGS(o_flags);
+
+ ip_tunnel_flags_copy(o_flags, p->o_flags);
if (p->erspan_ver == 1 || p->erspan_ver == 2) {
if (!p->collect_md)
- o_flags |= TUNNEL_KEY;
+ __set_bit(IP_TUNNEL_KEY_BIT, o_flags);
if (nla_put_u8(skb, IFLA_GRE_ERSPAN_VER, p->erspan_ver))
goto nla_put_failure;
@@ -2230,17 +2196,20 @@ static void ip6erspan_tap_setup(struct net_device *dev)
dev->needs_free_netdev = true;
dev->priv_destructor = ip6gre_dev_free;
+ dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
netif_keep_dst(dev);
}
-static int ip6erspan_newlink(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[],
+static int ip6erspan_newlink(struct net_device *dev,
+ struct rtnl_newlink_params *params,
struct netlink_ext_ack *extack)
{
+ struct net *net = params->link_net ? : dev_net(dev);
struct ip6_tnl *nt = netdev_priv(dev);
- struct net *net = dev_net(dev);
+ struct nlattr **data = params->data;
+ struct nlattr **tb = params->tb;
struct ip6gre_net *ign;
int err;
@@ -2256,7 +2225,7 @@ static int ip6erspan_newlink(struct net *src_net, struct net_device *dev,
return -EEXIST;
}
- err = ip6gre_newlink_common(src_net, dev, tb, data, extack);
+ err = ip6gre_newlink_common(net, dev, tb, data, extack);
if (!err) {
ip6erspan_tnl_link_config(nt, !tb[IFLA_MTU]);
ip6erspan_tunnel_link_md(ign, nt);
@@ -2401,7 +2370,7 @@ static void __exit ip6gre_fini(void)
module_init(ip6gre_init);
module_exit(ip6gre_fini);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("D. Kozlov (xeb@mail.ru)");
+MODULE_AUTHOR("D. Kozlov <xeb@mail.ru>");
MODULE_DESCRIPTION("GRE over IPv6 tunneling device");
MODULE_ALIAS_RTNL_LINK("ip6gre");
MODULE_ALIAS_RTNL_LINK("ip6gretap");
generated by cgit (git 2.34.1) at 2025-12-25 10:10:40 +0000