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-rw-r--r--drivers/net/phy/fixed_phy.c4
-rw-r--r--include/linux/ipv6.h2
-rw-r--r--include/net/seg6.h21
-rw-r--r--net/batman-adv/multicast.c15
-rw-r--r--net/batman-adv/multicast.h10
-rw-r--r--net/batman-adv/soft-interface.c7
-rw-r--r--net/ipv6/icmp.c6
-rw-r--r--net/ipv6/route.c15
-rw-r--r--net/ipv6/seg6.c59
-rw-r--r--net/ipv6/seg6_local.c33
-rw-r--r--net/ipv6/udp.c3
-rw-r--r--net/netrom/af_netrom.c2
-rw-r--r--net/sched/sch_qfq.c6
13 files changed, 125 insertions, 58 deletions
diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c
index a0c256bd5441..c65fb5f5d2dc 100644
--- a/drivers/net/phy/fixed_phy.c
+++ b/drivers/net/phy/fixed_phy.c
@@ -239,8 +239,8 @@ static struct phy_device *__fixed_phy_register(unsigned int irq,
/* Check if we have a GPIO associated with this fixed phy */
if (!gpiod) {
gpiod = fixed_phy_get_gpiod(np);
- if (!gpiod)
- return ERR_PTR(-EINVAL);
+ if (IS_ERR(gpiod))
+ return ERR_CAST(gpiod);
}
/* Get the next available PHY address, up to PHY_MAX_ADDR */
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 20c1f968da7c..a59d25f19385 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -133,6 +133,7 @@ struct inet6_skb_parm {
__u16 dsthao;
#endif
__u16 frag_max_size;
+ __u16 srhoff;
#define IP6SKB_XFRM_TRANSFORMED 1
#define IP6SKB_FORWARDED 2
@@ -142,6 +143,7 @@ struct inet6_skb_parm {
#define IP6SKB_HOPBYHOP 32
#define IP6SKB_L3SLAVE 64
#define IP6SKB_JUMBOGRAM 128
+#define IP6SKB_SEG6 256
};
#if defined(CONFIG_NET_L3_MASTER_DEV)
diff --git a/include/net/seg6.h b/include/net/seg6.h
index 9d19c15e8545..af668f17b398 100644
--- a/include/net/seg6.h
+++ b/include/net/seg6.h
@@ -58,9 +58,30 @@ extern int seg6_local_init(void);
extern void seg6_local_exit(void);
extern bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len, bool reduced);
+extern struct ipv6_sr_hdr *seg6_get_srh(struct sk_buff *skb, int flags);
+extern void seg6_icmp_srh(struct sk_buff *skb, struct inet6_skb_parm *opt);
extern int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh,
int proto);
extern int seg6_do_srh_inline(struct sk_buff *skb, struct ipv6_sr_hdr *osrh);
extern int seg6_lookup_nexthop(struct sk_buff *skb, struct in6_addr *nhaddr,
u32 tbl_id);
+
+/* If the packet which invoked an ICMP error contains an SRH return
+ * the true destination address from within the SRH, otherwise use the
+ * destination address in the IP header.
+ */
+static inline const struct in6_addr *seg6_get_daddr(struct sk_buff *skb,
+ struct inet6_skb_parm *opt)
+{
+ struct ipv6_sr_hdr *srh;
+
+ if (opt->flags & IP6SKB_SEG6) {
+ srh = (struct ipv6_sr_hdr *)(skb->data + opt->srhoff);
+ return &srh->segments[0];
+ }
+
+ return NULL;
+}
+
+
#endif
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 433901dcf0c3..f4004cf0ff6f 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -1339,6 +1339,7 @@ batadv_mcast_forw_rtr_node_get(struct batadv_priv *bat_priv,
* @bat_priv: the bat priv with all the soft interface information
* @skb: The multicast packet to check
* @orig: an originator to be set to forward the skb to
+ * @is_routable: stores whether the destination is routable
*
* Return: the forwarding mode as enum batadv_forw_mode and in case of
* BATADV_FORW_SINGLE set the orig to the single originator the skb
@@ -1346,17 +1347,16 @@ batadv_mcast_forw_rtr_node_get(struct batadv_priv *bat_priv,
*/
enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- struct batadv_orig_node **orig)
+ struct batadv_orig_node **orig, int *is_routable)
{
int ret, tt_count, ip_count, unsnoop_count, total_count;
bool is_unsnoopable = false;
unsigned int mcast_fanout;
struct ethhdr *ethhdr;
- int is_routable = 0;
int rtr_count = 0;
ret = batadv_mcast_forw_mode_check(bat_priv, skb, &is_unsnoopable,
- &is_routable);
+ is_routable);
if (ret == -ENOMEM)
return BATADV_FORW_NONE;
else if (ret < 0)
@@ -1369,7 +1369,7 @@ batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
ip_count = batadv_mcast_forw_want_all_ip_count(bat_priv, ethhdr);
unsnoop_count = !is_unsnoopable ? 0 :
atomic_read(&bat_priv->mcast.num_want_all_unsnoopables);
- rtr_count = batadv_mcast_forw_rtr_count(bat_priv, is_routable);
+ rtr_count = batadv_mcast_forw_rtr_count(bat_priv, *is_routable);
total_count = tt_count + ip_count + unsnoop_count + rtr_count;
@@ -1689,6 +1689,7 @@ batadv_mcast_forw_want_rtr(struct batadv_priv *bat_priv,
* @bat_priv: the bat priv with all the soft interface information
* @skb: the multicast packet to transmit
* @vid: the vlan identifier
+ * @is_routable: stores whether the destination is routable
*
* Sends copies of a frame with multicast destination to any node that signaled
* interest in it, that is either via the translation table or the according
@@ -1701,7 +1702,7 @@ batadv_mcast_forw_want_rtr(struct batadv_priv *bat_priv,
* is neither IPv4 nor IPv6. NET_XMIT_SUCCESS otherwise.
*/
int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
- unsigned short vid)
+ unsigned short vid, int is_routable)
{
int ret;
@@ -1717,12 +1718,16 @@ int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
return ret;
}
+ if (!is_routable)
+ goto skip_mc_router;
+
ret = batadv_mcast_forw_want_rtr(bat_priv, skb, vid);
if (ret != NET_XMIT_SUCCESS) {
kfree_skb(skb);
return ret;
}
+skip_mc_router:
consume_skb(skb);
return ret;
}
diff --git a/net/batman-adv/multicast.h b/net/batman-adv/multicast.h
index 9fee5da08311..8aec818d0bf6 100644
--- a/net/batman-adv/multicast.h
+++ b/net/batman-adv/multicast.h
@@ -43,7 +43,8 @@ enum batadv_forw_mode {
enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- struct batadv_orig_node **mcast_single_orig);
+ struct batadv_orig_node **mcast_single_orig,
+ int *is_routable);
int batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv,
struct sk_buff *skb,
@@ -51,7 +52,7 @@ int batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node);
int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
- unsigned short vid);
+ unsigned short vid, int is_routable);
void batadv_mcast_init(struct batadv_priv *bat_priv);
@@ -68,7 +69,8 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
static inline enum batadv_forw_mode
batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
- struct batadv_orig_node **mcast_single_orig)
+ struct batadv_orig_node **mcast_single_orig,
+ int *is_routable)
{
return BATADV_FORW_ALL;
}
@@ -85,7 +87,7 @@ batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv,
static inline int
batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
- unsigned short vid)
+ unsigned short vid, int is_routable)
{
kfree_skb(skb);
return NET_XMIT_DROP;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 7ee09337fc40..2dbbe6c19609 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -198,6 +198,7 @@ static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
int gw_mode;
enum batadv_forw_mode forw_mode = BATADV_FORW_SINGLE;
struct batadv_orig_node *mcast_single_orig = NULL;
+ int mcast_is_routable = 0;
int network_offset = ETH_HLEN;
__be16 proto;
@@ -300,7 +301,8 @@ static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
send:
if (do_bcast && !is_broadcast_ether_addr(ethhdr->h_dest)) {
forw_mode = batadv_mcast_forw_mode(bat_priv, skb,
- &mcast_single_orig);
+ &mcast_single_orig,
+ &mcast_is_routable);
if (forw_mode == BATADV_FORW_NONE)
goto dropped;
@@ -359,7 +361,8 @@ send:
ret = batadv_mcast_forw_send_orig(bat_priv, skb, vid,
mcast_single_orig);
} else if (forw_mode == BATADV_FORW_SOME) {
- ret = batadv_mcast_forw_send(bat_priv, skb, vid);
+ ret = batadv_mcast_forw_send(bat_priv, skb, vid,
+ mcast_is_routable);
} else {
if (batadv_dat_snoop_outgoing_arp_request(bat_priv,
skb))
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index a7c31ab67c5d..96c5cc0f30ce 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -57,6 +57,7 @@
#include <net/protocol.h>
#include <net/raw.h>
#include <net/rawv6.h>
+#include <net/seg6.h>
#include <net/transp_v6.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
@@ -820,6 +821,7 @@ out_bh_enable:
void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
{
+ struct inet6_skb_parm *opt = IP6CB(skb);
const struct inet6_protocol *ipprot;
int inner_offset;
__be16 frag_off;
@@ -829,6 +831,8 @@ void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto out;
+ seg6_icmp_srh(skb, opt);
+
nexthdr = ((struct ipv6hdr *)skb->data)->nexthdr;
if (ipv6_ext_hdr(nexthdr)) {
/* now skip over extension headers */
@@ -853,7 +857,7 @@ void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info)
ipprot = rcu_dereference(inet6_protos[nexthdr]);
if (ipprot && ipprot->err_handler)
- ipprot->err_handler(skb, NULL, type, code, inner_offset, info);
+ ipprot->err_handler(skb, opt, type, code, inner_offset, info);
raw6_icmp_error(skb, nexthdr, type, code, inner_offset, info);
return;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index d2ff8a7e1709..1deb6297aab6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5277,12 +5277,10 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
nla = nla_find(attrs, attrlen, RTA_GATEWAY);
if (nla) {
- int ret;
-
- ret = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+ err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
extack);
- if (ret)
- return ret;
+ if (err)
+ goto cleanup;
r_cfg.fc_flags |= RTF_GATEWAY;
}
@@ -5459,8 +5457,10 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
if (nla) {
err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
extack);
- if (err)
- return err;
+ if (err) {
+ last_err = err;
+ goto next_rtnh;
+ }
r_cfg.fc_flags |= RTF_GATEWAY;
}
@@ -5469,6 +5469,7 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
if (err)
last_err = err;
+next_rtnh:
rtnh = rtnh_next(rtnh, &remaining);
}
diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c
index a8b5784afb1a..73aaabf0e966 100644
--- a/net/ipv6/seg6.c
+++ b/net/ipv6/seg6.c
@@ -75,6 +75,65 @@ bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len, bool reduced)
return true;
}
+struct ipv6_sr_hdr *seg6_get_srh(struct sk_buff *skb, int flags)
+{
+ struct ipv6_sr_hdr *srh;
+ int len, srhoff = 0;
+
+ if (ipv6_find_hdr(skb, &srhoff, IPPROTO_ROUTING, NULL, &flags) < 0)
+ return NULL;
+
+ if (!pskb_may_pull(skb, srhoff + sizeof(*srh)))
+ return NULL;
+
+ srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
+
+ len = (srh->hdrlen + 1) << 3;
+
+ if (!pskb_may_pull(skb, srhoff + len))
+ return NULL;
+
+ /* note that pskb_may_pull may change pointers in header;
+ * for this reason it is necessary to reload them when needed.
+ */
+ srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
+
+ if (!seg6_validate_srh(srh, len, true))
+ return NULL;
+
+ return srh;
+}
+
+/* Determine if an ICMP invoking packet contains a segment routing
+ * header. If it does, extract the offset to the true destination
+ * address, which is in the first segment address.
+ */
+void seg6_icmp_srh(struct sk_buff *skb, struct inet6_skb_parm *opt)
+{
+ __u16 network_header = skb->network_header;
+ struct ipv6_sr_hdr *srh;
+
+ /* Update network header to point to the invoking packet
+ * inside the ICMP packet, so we can use the seg6_get_srh()
+ * helper.
+ */
+ skb_reset_network_header(skb);
+
+ srh = seg6_get_srh(skb, 0);
+ if (!srh)
+ goto out;
+
+ if (srh->type != IPV6_SRCRT_TYPE_4)
+ goto out;
+
+ opt->flags |= IP6SKB_SEG6;
+ opt->srhoff = (unsigned char *)srh - skb->data;
+
+out:
+ /* Restore the network header back to the ICMP packet */
+ skb->network_header = network_header;
+}
+
static struct genl_family seg6_genl_family;
static const struct nla_policy seg6_genl_policy[SEG6_ATTR_MAX + 1] = {
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 2dc40b3f373e..ef88489c71f5 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -150,40 +150,11 @@ static struct seg6_local_lwt *seg6_local_lwtunnel(struct lwtunnel_state *lwt)
return (struct seg6_local_lwt *)lwt->data;
}
-static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb, int flags)
-{
- struct ipv6_sr_hdr *srh;
- int len, srhoff = 0;
-
- if (ipv6_find_hdr(skb, &srhoff, IPPROTO_ROUTING, NULL, &flags) < 0)
- return NULL;
-
- if (!pskb_may_pull(skb, srhoff + sizeof(*srh)))
- return NULL;
-
- srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
-
- len = (srh->hdrlen + 1) << 3;
-
- if (!pskb_may_pull(skb, srhoff + len))
- return NULL;
-
- /* note that pskb_may_pull may change pointers in header;
- * for this reason it is necessary to reload them when needed.
- */
- srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
-
- if (!seg6_validate_srh(srh, len, true))
- return NULL;
-
- return srh;
-}
-
static struct ipv6_sr_hdr *get_and_validate_srh(struct sk_buff *skb)
{
struct ipv6_sr_hdr *srh;
- srh = get_srh(skb, IP6_FH_F_SKIP_RH);
+ srh = seg6_get_srh(skb, IP6_FH_F_SKIP_RH);
if (!srh)
return NULL;
@@ -200,7 +171,7 @@ static bool decap_and_validate(struct sk_buff *skb, int proto)
struct ipv6_sr_hdr *srh;
unsigned int off = 0;
- srh = get_srh(skb, 0);
+ srh = seg6_get_srh(skb, 0);
if (srh && srh->segments_left > 0)
return false;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8cde9efd7919..a0871c212741 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -40,6 +40,7 @@
#include <net/transp_v6.h>
#include <net/ip6_route.h>
#include <net/raw.h>
+#include <net/seg6.h>
#include <net/tcp_states.h>
#include <net/ip6_checksum.h>
#include <net/ip6_tunnel.h>
@@ -561,7 +562,7 @@ int __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
struct ipv6_pinfo *np;
const struct ipv6hdr *hdr = (const struct ipv6hdr *)skb->data;
const struct in6_addr *saddr = &hdr->saddr;
- const struct in6_addr *daddr = &hdr->daddr;
+ const struct in6_addr *daddr = seg6_get_daddr(skb, opt) ? : &hdr->daddr;
struct udphdr *uh = (struct udphdr *)(skb->data+offset);
bool tunnel = false;
struct sock *sk;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 775064cdd0ee..f1ba7dd3d253 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -306,7 +306,7 @@ static int nr_setsockopt(struct socket *sock, int level, int optname,
if (optlen < sizeof(unsigned int))
return -EINVAL;
- if (copy_from_sockptr(&opt, optval, sizeof(unsigned int)))
+ if (copy_from_sockptr(&opt, optval, sizeof(unsigned long)))
return -EFAULT;
switch (optname) {
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 0b7f9ba28deb..d4ce58c90f9f 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -1421,10 +1421,8 @@ static int qfq_init_qdisc(struct Qdisc *sch, struct nlattr *opt,
if (err < 0)
return err;
- if (qdisc_dev(sch)->tx_queue_len + 1 > QFQ_MAX_AGG_CLASSES)
- max_classes = QFQ_MAX_AGG_CLASSES;
- else
- max_classes = qdisc_dev(sch)->tx_queue_len + 1;
+ max_classes = min_t(u64, (u64)qdisc_dev(sch)->tx_queue_len + 1,
+ QFQ_MAX_AGG_CLASSES);
/* max_cl_shift = floor(log_2(max_classes)) */
max_cl_shift = __fls(max_classes);
q->max_agg_classes = 1<<max_cl_shift;
generated by cgit (git 2.34.1) at 2024-06-07 13:20:24 +0000