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authorLinus Torvalds <torvalds@linux-foundation.org>2018-07-18 19:32:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-07-18 19:32:54 -0700
commit024ddc0ce1049298bd3cae60ae45d9c5f0fb8b9c (patch)
tree18b44ede17871ded93577c317f3afe3db122ba33 /net
parent05df204549c510c7c56e58d25098c448998a0cd5 (diff)
parente56b8ce363a36fb7b74b80aaa5cc9084f2c908b4 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller: "Lots of fixes, here goes: 1) NULL deref in qtnfmac, from Gustavo A. R. Silva. 2) Kernel oops when fw download fails in rtlwifi, from Ping-Ke Shih. 3) Lost completion messages in AF_XDP, from Magnus Karlsson. 4) Correct bogus self-assignment in rhashtable, from Rishabh Bhatnagar. 5) Fix regression in ipv6 route append handling, from David Ahern. 6) Fix masking in __set_phy_supported(), from Heiner Kallweit. 7) Missing module owner set in x_tables icmp, from Florian Westphal. 8) liquidio's timeouts are HZ dependent, fix from Nicholas Mc Guire. 9) Link setting fixes for sh_eth and ravb, from Vladimir Zapolskiy. 10) Fix NULL deref when using chains in act_csum, from Davide Caratti. 11) XDP_REDIRECT needs to check if the interface is up and whether the MTU is sufficient. From Toshiaki Makita. 12) Net diag can do a double free when killing TCP_NEW_SYN_RECV connections, from Lorenzo Colitti. 13) nf_defrag in ipv6 can unnecessarily hold onto dst entries for a full minute, delaying device unregister. From Eric Dumazet. 14) Update MAC entries in the correct order in ixgbe, from Alexander Duyck. 15) Don't leave partial mangles bpf program in jit_subprogs, from Daniel Borkmann. 16) Fix pfmemalloc SKB state propagation, from Stefano Brivio. 17) Fix ACK handling in DCTCP congestion control, from Yuchung Cheng. 18) Use after free in tun XDP_TX, from Toshiaki Makita. 19) Stale ipv6 header pointer in ipv6 gre code, from Prashant Bhole. 20) Don't reuse remainder of RX page when XDP is set in mlx4, from Saeed Mahameed. 21) Fix window probe handling of TCP rapair sockets, from Stefan Baranoff. 22) Missing socket locking in smc_ioctl(), from Ursula Braun. 23) IPV6_ILA needs DST_CACHE, from Arnd Bergmann. 24) Spectre v1 fix in cxgb3, from Gustavo A. R. Silva. 25) Two spots in ipv6 do a rol32() on a hash value but ignore the result. Fixes from Colin Ian King" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (176 commits) tcp: identify cryptic messages as TCP seq # bugs ptp: fix missing break in switch hv_netvsc: Fix napi reschedule while receive completion is busy MAINTAINERS: Drop inactive Vitaly Bordug's email net: cavium: Add fine-granular dependencies on PCI net: qca_spi: Fix log level if probe fails net: qca_spi: Make sure the QCA7000 reset is triggered net: qca_spi: Avoid packet drop during initial sync ipv6: fix useless rol32 call on hash ipv6: sr: fix useless rol32 call on hash net: sched: Using NULL instead of plain integer net: usb: asix: replace mii_nway_restart in resume path net: cxgb3_main: fix potential Spectre v1 lib/rhashtable: consider param->min_size when setting initial table size net/smc: reset recv timeout after clc handshake net/smc: add error handling for get_user() net/smc: optimize consumer cursor updates net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL. ipv6: ila: select CONFIG_DST_CACHE net: usb: rtl8150: demote allmulti message to dev_dbg() ...
Diffstat (limited to 'net')
-rw-r--r--net/batman-adv/bat_iv_ogm.c4
-rw-r--r--net/batman-adv/bat_v.c4
-rw-r--r--net/batman-adv/debugfs.c40
-rw-r--r--net/batman-adv/debugfs.h11
-rw-r--r--net/batman-adv/hard-interface.c37
-rw-r--r--net/batman-adv/translation-table.c7
-rw-r--r--net/bpf/test_run.c17
-rw-r--r--net/core/filter.c149
-rw-r--r--net/core/gen_stats.c16
-rw-r--r--net/core/skbuff.c1
-rw-r--r--net/dns_resolver/dns_key.c28
-rw-r--r--net/ieee802154/6lowpan/core.c6
-rw-r--r--net/ipv4/fib_frontend.c1
-rw-r--r--net/ipv4/igmp.c58
-rw-r--r--net/ipv4/inet_fragment.c2
-rw-r--r--net/ipv4/ip_sockglue.c4
-rw-r--r--net/ipv4/netfilter/ip_tables.c1
-rw-r--r--net/ipv4/netfilter/nf_tproxy_ipv4.c18
-rw-r--r--net/ipv4/sysctl_net_ipv4.c5
-rw-r--r--net/ipv4/tcp.c16
-rw-r--r--net/ipv4/tcp_dctcp.c31
-rw-r--r--net/ipv4/tcp_ipv4.c23
-rw-r--r--net/ipv4/tcp_output.c4
-rw-r--r--net/ipv6/Kconfig1
-rw-r--r--net/ipv6/calipso.c9
-rw-r--r--net/ipv6/exthdrs.c111
-rw-r--r--net/ipv6/ip6_fib.c156
-rw-r--r--net/ipv6/ip6_gre.c3
-rw-r--r--net/ipv6/ipv6_sockglue.c32
-rw-r--r--net/ipv6/mcast.c64
-rw-r--r--net/ipv6/ndisc.c2
-rw-r--r--net/ipv6/netfilter/ip6_tables.c1
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c2
-rw-r--r--net/ipv6/netfilter/nf_tproxy_ipv6.c18
-rw-r--r--net/ipv6/route.c10
-rw-r--r--net/ipv6/seg6_iptunnel.c2
-rw-r--r--net/netfilter/Kconfig25
-rw-r--r--net/netfilter/Makefile7
-rw-r--r--net/netfilter/nf_conntrack_core.c2
-rw-r--r--net/netfilter/nf_tables_set_core.c28
-rw-r--r--net/netfilter/nft_compat.c13
-rw-r--r--net/netfilter/nft_set_bitmap.c19
-rw-r--r--net/netfilter/nft_set_hash.c29
-rw-r--r--net/netfilter/nft_set_rbtree.c19
-rw-r--r--net/netfilter/xt_TPROXY.c8
-rw-r--r--net/nfc/llcp_commands.c9
-rw-r--r--net/nsh/nsh.c2
-rw-r--r--net/packet/af_packet.c2
-rw-r--r--net/qrtr/qrtr.c13
-rw-r--r--net/sched/act_csum.c6
-rw-r--r--net/sched/act_tunnel_key.c6
-rw-r--r--net/sched/cls_api.c4
-rw-r--r--net/sched/sch_fq_codel.c25
-rw-r--r--net/sctp/transport.c2
-rw-r--r--net/smc/af_smc.c37
-rw-r--r--net/smc/smc_clc.c3
-rw-r--r--net/smc/smc_close.c2
-rw-r--r--net/smc/smc_tx.c12
-rw-r--r--net/tipc/discover.c18
-rw-r--r--net/tipc/net.c17
-rw-r--r--net/tipc/node.c7
-rw-r--r--net/tls/tls_sw.c7
-rw-r--r--net/xdp/xsk.c30
-rw-r--r--net/xdp/xsk_queue.h9
64 files changed, 770 insertions, 485 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index be09a9883825..73bf6a93a3cf 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -2732,7 +2732,7 @@ static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
{
struct batadv_neigh_ifinfo *router_ifinfo = NULL;
struct batadv_neigh_node *router;
- struct batadv_gw_node *curr_gw;
+ struct batadv_gw_node *curr_gw = NULL;
int ret = 0;
void *hdr;
@@ -2780,6 +2780,8 @@ static int batadv_iv_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
ret = 0;
out:
+ if (curr_gw)
+ batadv_gw_node_put(curr_gw);
if (router_ifinfo)
batadv_neigh_ifinfo_put(router_ifinfo);
if (router)
diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
index ec93337ee259..6baec4e68898 100644
--- a/net/batman-adv/bat_v.c
+++ b/net/batman-adv/bat_v.c
@@ -927,7 +927,7 @@ static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
{
struct batadv_neigh_ifinfo *router_ifinfo = NULL;
struct batadv_neigh_node *router;
- struct batadv_gw_node *curr_gw;
+ struct batadv_gw_node *curr_gw = NULL;
int ret = 0;
void *hdr;
@@ -995,6 +995,8 @@ static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
ret = 0;
out:
+ if (curr_gw)
+ batadv_gw_node_put(curr_gw);
if (router_ifinfo)
batadv_neigh_ifinfo_put(router_ifinfo);
if (router)
diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index 4229b01ac7b5..87479c60670e 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -19,6 +19,7 @@
#include "debugfs.h"
#include "main.h"
+#include <linux/dcache.h>
#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/errno.h>
@@ -344,6 +345,25 @@ out:
}
/**
+ * batadv_debugfs_rename_hardif() - Fix debugfs path for renamed hardif
+ * @hard_iface: hard interface which was renamed
+ */
+void batadv_debugfs_rename_hardif(struct batadv_hard_iface *hard_iface)
+{
+ const char *name = hard_iface->net_dev->name;
+ struct dentry *dir;
+ struct dentry *d;
+
+ dir = hard_iface->debug_dir;
+ if (!dir)
+ return;
+
+ d = debugfs_rename(dir->d_parent, dir, dir->d_parent, name);
+ if (!d)
+ pr_err("Can't rename debugfs dir to %s\n", name);
+}
+
+/**
* batadv_debugfs_del_hardif() - delete the base directory for a hard interface
* in debugfs.
* @hard_iface: hard interface which is deleted.
@@ -414,6 +434,26 @@ out:
}
/**
+ * batadv_debugfs_rename_meshif() - Fix debugfs path for renamed softif
+ * @dev: net_device which was renamed
+ */
+void batadv_debugfs_rename_meshif(struct net_device *dev)
+{
+ struct batadv_priv *bat_priv = netdev_priv(dev);
+ const char *name = dev->name;
+ struct dentry *dir;
+ struct dentry *d;
+
+ dir = bat_priv->debug_dir;
+ if (!dir)
+ return;
+
+ d = debugfs_rename(dir->d_parent, dir, dir->d_parent, name);
+ if (!d)
+ pr_err("Can't rename debugfs dir to %s\n", name);
+}
+
+/**
* batadv_debugfs_del_meshif() - Remove interface dependent debugfs entries
* @dev: netdev struct of the soft interface
*/
diff --git a/net/batman-adv/debugfs.h b/net/batman-adv/debugfs.h
index 37b069698b04..08a592ffbee5 100644
--- a/net/batman-adv/debugfs.h
+++ b/net/batman-adv/debugfs.h
@@ -30,8 +30,10 @@ struct net_device;
void batadv_debugfs_init(void);
void batadv_debugfs_destroy(void);
int batadv_debugfs_add_meshif(struct net_device *dev);
+void batadv_debugfs_rename_meshif(struct net_device *dev);
void batadv_debugfs_del_meshif(struct net_device *dev);
int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface);
+void batadv_debugfs_rename_hardif(struct batadv_hard_iface *hard_iface);
void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface);
#else
@@ -49,6 +51,10 @@ static inline int batadv_debugfs_add_meshif(struct net_device *dev)
return 0;
}
+static inline void batadv_debugfs_rename_meshif(struct net_device *dev)
+{
+}
+
static inline void batadv_debugfs_del_meshif(struct net_device *dev)
{
}
@@ -60,6 +66,11 @@ int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface)
}
static inline
+void batadv_debugfs_rename_hardif(struct batadv_hard_iface *hard_iface)
+{
+}
+
+static inline
void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface)
{
}
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index c405d15befd6..2f0d42f2f913 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -989,6 +989,32 @@ void batadv_hardif_remove_interfaces(void)
rtnl_unlock();
}
+/**
+ * batadv_hard_if_event_softif() - Handle events for soft interfaces
+ * @event: NETDEV_* event to handle
+ * @net_dev: net_device which generated an event
+ *
+ * Return: NOTIFY_* result
+ */
+static int batadv_hard_if_event_softif(unsigned long event,
+ struct net_device *net_dev)
+{
+ struct batadv_priv *bat_priv;
+
+ switch (event) {
+ case NETDEV_REGISTER:
+ batadv_sysfs_add_meshif(net_dev);
+ bat_priv = netdev_priv(net_dev);
+ batadv_softif_create_vlan(bat_priv, BATADV_NO_FLAGS);
+ break;
+ case NETDEV_CHANGENAME:
+ batadv_debugfs_rename_meshif(net_dev);
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
static int batadv_hard_if_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
@@ -997,12 +1023,8 @@ static int batadv_hard_if_event(struct notifier_block *this,
struct batadv_hard_iface *primary_if = NULL;
struct batadv_priv *bat_priv;
- if (batadv_softif_is_valid(net_dev) && event == NETDEV_REGISTER) {
- batadv_sysfs_add_meshif(net_dev);
- bat_priv = netdev_priv(net_dev);
- batadv_softif_create_vlan(bat_priv, BATADV_NO_FLAGS);
- return NOTIFY_DONE;
- }
+ if (batadv_softif_is_valid(net_dev))
+ return batadv_hard_if_event_softif(event, net_dev);
hard_iface = batadv_hardif_get_by_netdev(net_dev);
if (!hard_iface && (event == NETDEV_REGISTER ||
@@ -1051,6 +1073,9 @@ static int batadv_hard_if_event(struct notifier_block *this,
if (batadv_is_wifi_hardif(hard_iface))
hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;
break;
+ case NETDEV_CHANGENAME:
+ batadv_debugfs_rename_hardif(hard_iface);
+ break;
default:
break;
}
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 3986551397ca..12a2b7d21376 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1705,7 +1705,9 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
ether_addr_copy(common->addr, tt_addr);
common->vid = vid;
- common->flags = flags;
+ if (!is_multicast_ether_addr(common->addr))
+ common->flags = flags & (~BATADV_TT_SYNC_MASK);
+
tt_global_entry->roam_at = 0;
/* node must store current time in case of roaming. This is
* needed to purge this entry out on timeout (if nobody claims
@@ -1768,7 +1770,8 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
* TT_CLIENT_TEMP, therefore they have to be copied in the
* client entry
*/
- common->flags |= flags & (~BATADV_TT_SYNC_MASK);
+ if (!is_multicast_ether_addr(common->addr))
+ common->flags |= flags & (~BATADV_TT_SYNC_MASK);
/* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only
* one originator left in the list and we previously received a
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index 68c3578343b4..22a78eedf4b1 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -96,6 +96,7 @@ int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr,
u32 size = kattr->test.data_size_in;
u32 repeat = kattr->test.repeat;
u32 retval, duration;
+ int hh_len = ETH_HLEN;
struct sk_buff *skb;
void *data;
int ret;
@@ -131,12 +132,22 @@ int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr,
skb_reset_network_header(skb);
if (is_l2)
- __skb_push(skb, ETH_HLEN);
+ __skb_push(skb, hh_len);
if (is_direct_pkt_access)
bpf_compute_data_pointers(skb);
retval = bpf_test_run(prog, skb, repeat, &duration);
- if (!is_l2)
- __skb_push(skb, ETH_HLEN);
+ if (!is_l2) {
+ if (skb_headroom(skb) < hh_len) {
+ int nhead = HH_DATA_ALIGN(hh_len - skb_headroom(skb));
+
+ if (pskb_expand_head(skb, nhead, 0, GFP_USER)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ }
+ memset(__skb_push(skb, hh_len), 0, hh_len);
+ }
+
size = skb->len;
/* bpf program can never convert linear skb to non-linear */
if (WARN_ON_ONCE(skb_is_nonlinear(skb)))
diff --git a/net/core/filter.c b/net/core/filter.c
index 0ca6907d7efe..06da770f543f 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -459,11 +459,21 @@ static bool convert_bpf_ld_abs(struct sock_filter *fp, struct bpf_insn **insnp)
(!unaligned_ok && offset >= 0 &&
offset + ip_align >= 0 &&
offset + ip_align % size == 0))) {
+ bool ldx_off_ok = offset <= S16_MAX;
+
*insn++ = BPF_MOV64_REG(BPF_REG_TMP, BPF_REG_H);
*insn++ = BPF_ALU64_IMM(BPF_SUB, BPF_REG_TMP, offset);
- *insn++ = BPF_JMP_IMM(BPF_JSLT, BPF_REG_TMP, size, 2 + endian);
- *insn++ = BPF_LDX_MEM(BPF_SIZE(fp->code), BPF_REG_A, BPF_REG_D,
- offset);
+ *insn++ = BPF_JMP_IMM(BPF_JSLT, BPF_REG_TMP,
+ size, 2 + endian + (!ldx_off_ok * 2));
+ if (ldx_off_ok) {
+ *insn++ = BPF_LDX_MEM(BPF_SIZE(fp->code), BPF_REG_A,
+ BPF_REG_D, offset);
+ } else {
+ *insn++ = BPF_MOV64_REG(BPF_REG_TMP, BPF_REG_D);
+ *insn++ = BPF_ALU64_IMM(BPF_ADD, BPF_REG_TMP, offset);
+ *insn++ = BPF_LDX_MEM(BPF_SIZE(fp->code), BPF_REG_A,
+ BPF_REG_TMP, 0);
+ }
if (endian)
*insn++ = BPF_ENDIAN(BPF_FROM_BE, BPF_REG_A, size * 8);
*insn++ = BPF_JMP_A(8);
@@ -1762,6 +1772,37 @@ static const struct bpf_func_proto bpf_skb_pull_data_proto = {
.arg2_type = ARG_ANYTHING,
};
+static inline int sk_skb_try_make_writable(struct sk_buff *skb,
+ unsigned int write_len)
+{
+ int err = __bpf_try_make_writable(skb, write_len);
+
+ bpf_compute_data_end_sk_skb(skb);
+ return err;
+}
+
+BPF_CALL_2(sk_skb_pull_data, struct sk_buff *, skb, u32, len)
+{
+ /* Idea is the following: should the needed direct read/write
+ * test fail during runtime, we can pull in more data and redo
+ * again, since implicitly, we invalidate previous checks here.
+ *
+ * Or, since we know how much we need to make read/writeable,
+ * this can be done once at the program beginning for direct
+ * access case. By this we overcome limitations of only current
+ * headroom being accessible.
+ */
+ return sk_skb_try_make_writable(skb, len ? : skb_headlen(skb));
+}
+
+static const struct bpf_func_proto sk_skb_pull_data_proto = {
+ .func = sk_skb_pull_data,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+};
+
BPF_CALL_5(bpf_l3_csum_replace, struct sk_buff *, skb, u32, offset,
u64, from, u64, to, u64, flags)
{
@@ -2779,7 +2820,8 @@ static int bpf_skb_net_shrink(struct sk_buff *skb, u32 len_diff)
static u32 __bpf_skb_max_len(const struct sk_buff *skb)
{
- return skb->dev->mtu + skb->dev->hard_header_len;
+ return skb->dev ? skb->dev->mtu + skb->dev->hard_header_len :
+ SKB_MAX_ALLOC;
}
static int bpf_skb_adjust_net(struct sk_buff *skb, s32 len_diff)
@@ -2863,8 +2905,8 @@ static int bpf_skb_trim_rcsum(struct sk_buff *skb, unsigned int new_len)
return __skb_trim_rcsum(skb, new_len);
}
-BPF_CALL_3(bpf_skb_change_tail, struct sk_buff *, skb, u32, new_len,
- u64, flags)
+static inline int __bpf_skb_change_tail(struct sk_buff *skb, u32 new_len,
+ u64 flags)
{
u32 max_len = __bpf_skb_max_len(skb);
u32 min_len = __bpf_skb_min_len(skb);
@@ -2900,6 +2942,13 @@ BPF_CALL_3(bpf_skb_change_tail, struct sk_buff *, skb, u32, new_len,
if (!ret && skb_is_gso(skb))
skb_gso_reset(skb);
}
+ return ret;
+}
+
+BPF_CALL_3(bpf_skb_change_tail, struct sk_buff *, skb, u32, new_len,
+ u64, flags)
+{
+ int ret = __bpf_skb_change_tail(skb, new_len, flags);
bpf_compute_data_pointers(skb);
return ret;
@@ -2914,9 +2963,27 @@ static const struct bpf_func_proto bpf_skb_change_tail_proto = {
.arg3_type = ARG_ANYTHING,
};
-BPF_CALL_3(bpf_skb_change_head, struct sk_buff *, skb, u32, head_room,
+BPF_CALL_3(sk_skb_change_tail, struct sk_buff *, skb, u32, new_len,
u64, flags)
{
+ int ret = __bpf_skb_change_tail(skb, new_len, flags);
+
+ bpf_compute_data_end_sk_skb(skb);
+ return ret;
+}
+
+static const struct bpf_func_proto sk_skb_change_tail_proto = {
+ .func = sk_skb_change_tail,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+ .arg3_type = ARG_ANYTHING,
+};
+
+static inline int __bpf_skb_change_head(struct sk_buff *skb, u32 head_room,
+ u64 flags)
+{
u32 max_len = __bpf_skb_max_len(skb);
u32 new_len = skb->len + head_room;
int ret;
@@ -2941,8 +3008,16 @@ BPF_CALL_3(bpf_skb_change_head, struct sk_buff *, skb, u32, head_room,
skb_reset_mac_header(skb);
}
+ return ret;
+}
+
+BPF_CALL_3(bpf_skb_change_head, struct sk_buff *, skb, u32, head_room,
+ u64, flags)
+{
+ int ret = __bpf_skb_change_head(skb, head_room, flags);
+
bpf_compute_data_pointers(skb);
- return 0;
+ return ret;
}
static const struct bpf_func_proto bpf_skb_change_head_proto = {
@@ -2954,6 +3029,23 @@ static const struct bpf_func_proto bpf_skb_change_head_proto = {
.arg3_type = ARG_ANYTHING,
};
+BPF_CALL_3(sk_skb_change_head, struct sk_buff *, skb, u32, head_room,
+ u64, flags)
+{
+ int ret = __bpf_skb_change_head(skb, head_room, flags);
+
+ bpf_compute_data_end_sk_skb(skb);
+ return ret;
+}
+
+static const struct bpf_func_proto sk_skb_change_head_proto = {
+ .func = sk_skb_change_head,
+ .gpl_only = false,
+ .ret_type = RET_INTEGER,
+ .arg1_type = ARG_PTR_TO_CTX,
+ .arg2_type = ARG_ANYTHING,
+ .arg3_type = ARG_ANYTHING,
+};
static unsigned long xdp_get_metalen(const struct xdp_buff *xdp)
{
return xdp_data_meta_unsupported(xdp) ? 0 :
@@ -3046,12 +3138,16 @@ static int __bpf_tx_xdp(struct net_device *dev,
u32 index)
{
struct xdp_frame *xdpf;
- int sent;
+ int err, sent;
if (!dev->netdev_ops->ndo_xdp_xmit) {
return -EOPNOTSUPP;
}
+ err = xdp_ok_fwd_dev(dev, xdp->data_end - xdp->data);
+ if (unlikely(err))
+ return err;
+
xdpf = convert_to_xdp_frame(xdp);
if (unlikely(!xdpf))
return -EOVERFLOW;
@@ -3285,7 +3381,8 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
goto err;
}
- if (unlikely((err = __xdp_generic_ok_fwd_dev(skb, fwd))))
+ err = xdp_ok_fwd_dev(fwd, skb->len);
+ if (unlikely(err))
goto err;
skb->dev = fwd;
@@ -4439,10 +4536,10 @@ static const struct bpf_func_proto bpf_lwt_push_encap_proto = {
.arg4_type = ARG_CONST_SIZE
};
+#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
BPF_CALL_4(bpf_lwt_seg6_store_bytes, struct sk_buff *, skb, u32, offset,
const void *, from, u32, len)
{
-#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
struct seg6_bpf_srh_state *srh_state =
this_cpu_ptr(&seg6_bpf_srh_states);
void *srh_tlvs, *srh_end, *ptr;
@@ -4468,9 +4565,6 @@ BPF_CALL_4(bpf_lwt_seg6_store_bytes, struct sk_buff *, skb, u32, offset,
memcpy(skb->data + offset, from, len);
return 0;
-#else /* CONFIG_IPV6_SEG6_BPF */
- return -EOPNOTSUPP;
-#endif
}
static const struct bpf_func_proto bpf_lwt_seg6_store_bytes_proto = {
@@ -4486,7 +4580,6 @@ static const struct bpf_func_proto bpf_lwt_seg6_store_bytes_proto = {
BPF_CALL_4(bpf_lwt_seg6_action, struct sk_buff *, skb,
u32, action, void *, param, u32, param_len)
{
-#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
struct seg6_bpf_srh_state *srh_state =
this_cpu_ptr(&seg6_bpf_srh_states);
struct ipv6_sr_hdr *srh;
@@ -4534,9 +4627,6 @@ BPF_CALL_4(bpf_lwt_seg6_action, struct sk_buff *, skb,
default:
return -EINVAL;
}
-#else /* CONFIG_IPV6_SEG6_BPF */
- return -EOPNOTSUPP;
-#endif
}
static const struct bpf_func_proto bpf_lwt_seg6_action_proto = {
@@ -4552,7 +4642,6 @@ static const struct bpf_func_proto bpf_lwt_seg6_action_proto = {
BPF_CALL_3(bpf_lwt_seg6_adjust_srh, struct sk_buff *, skb, u32, offset,
s32, len)
{
-#if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
struct seg6_bpf_srh_state *srh_state =
this_cpu_ptr(&seg6_bpf_srh_states);
void *srh_end, *srh_tlvs, *ptr;
@@ -4596,9 +4685,6 @@ BPF_CALL_3(bpf_lwt_seg6_adjust_srh, struct sk_buff *, skb, u32, offset,
srh_state->hdrlen += len;
srh_state->valid = 0;
return 0;
-#else /* CONFIG_IPV6_SEG6_BPF */
- return -EOPNOTSUPP;
-#endif
}
static const struct bpf_func_proto bpf_lwt_seg6_adjust_srh_proto = {
@@ -4609,6 +4695,7 @@ static const struct bpf_func_proto bpf_lwt_seg6_adjust_srh_proto = {
.arg2_type = ARG_ANYTHING,
.arg3_type = ARG_ANYTHING,
};
+#endif /* CONFIG_IPV6_SEG6_BPF */
bool bpf_helper_changes_pkt_data(void *func)
{
@@ -4617,9 +4704,12 @@ bool bpf_helper_changes_pkt_data(void *func)
func == bpf_skb_store_bytes ||
func == bpf_skb_change_proto ||
func == bpf_skb_change_head ||
+ func == sk_skb_change_head ||
func == bpf_skb_change_tail ||
+ func == sk_skb_change_tail ||
func == bpf_skb_adjust_room ||
func == bpf_skb_pull_data ||