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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-16 19:28:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-16 19:28:34 -0700
commit51835949dda3783d4639cfa74ce13a3c9829de00 (patch)
tree2b593de5eba6ecc73f7c58fc65fdaffae45c7323 /net/core/filter.c
parent0434dbe32053d07d658165be681505120c6b1abc (diff)
parent77ae5e5b00720372af2860efdc4bc652ac682696 (diff)
Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextHEADmaster
Pull networking updates from Jakub Kicinski: "Not much excitement - a handful of large patchsets (devmem among them) did not make it in time. Core & protocols: - Use local_lock in addition to local_bh_disable() to protect per-CPU resources in networking, a step closer for local_bh_disable() not to act as a big lock on PREEMPT_RT - Use flex array for netdevice priv area, ensure its cache alignment - Add a sysctl knob to allow user to specify a default rto_min at socket init time. Bit of a big hammer but multiple companies were independently carrying such patch downstream so clearly it's useful - Support scheduling transmission of packets based on CLOCK_TAI - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned off using cpusets - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address - Allow configuration of multipath hash seed, to both allow synchronizing hashing of two routers, and preventing partial accidental sync - Improve TCP compliance with RFC 9293 for simultaneous connect() - Support sending NAT keepalives in IPsec ESP in UDP states. Userspace IKE daemon had to do this before, but the kernel can better keep track of it - Support sending supervision HSR frames with MAC addresses stored in ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled - Introduce IPPROTO_SMC for selecting SMC when socket is created - Allow UDP GSO transmit from devices with no checksum offload - openvswitch: add packet sampling via psample, separating the sampled traffic from "upcall" packets sent to user space for forwarding - nf_tables: shrink memory consumption for transaction objects Things we sprinkled into general kernel code: - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for QCA6390) [ Already merged separately - Linus ] - Add IRQ information in sysfs for auxiliary bus - Introduce guard definition for local_lock - Add aligned flavor of __cacheline_group_{begin, end}() markings for grouping fields in structures BPF: - Notify user space (via epoll) when a struct_ops object is getting detached/unregistered - Add new kfuncs for a generic, open-coded bits iterator - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and bpf_list_head - Support resilient split BTF which cuts down on duplication and makes BTF as compact as possible WRT BTF from modules - Add support for dumping kfunc prototypes from BTF which enables both detecting as well as dumping compilable prototypes for kfuncs - riscv64 BPF JIT improvements in particular to add 12-argument support for BPF trampolines and to utilize bpf_prog_pack for the latter - Add the capability to offload the netfilter flowtable in XDP layer through kfuncs Driver API: - Allow users to configure IRQ tresholds between which automatic IRQ moderation can choose - Expand Power Sourcing (PoE) status with power, class and failure reason. Support setting power limits - Track additional RSS contexts in the core, make sure configuration changes don't break them - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated ESP data paths - Support updating firmware on SFP modules Tests and tooling: - mptcp: use net/lib.sh to manage netns - TCP-AO and TCP-MD5: replace debug prints used by tests with tracepoints - openvswitch: make test self-contained (don't depend on OvS CLI tools) Drivers: - Ethernet high-speed NICs: - Broadcom (bnxt): - increase the max total outstanding PTP TX packets to 4 - add timestamping statistics support - implement netdev_queue_mgmt_ops - support new RSS context API - Intel (100G, ice, idpf): - implement FEC statistics and dumping signal quality indicators - support E825C products (with 56Gbps PHYs) - nVidia/Mellanox: - support HW-GRO - mlx4/mlx5: support per-queue statistics via netlink - obey the max number of EQs setting in sub-functions - AMD/Solarflare: - support new RSS context API - AMD/Pensando: - ionic: rework fix for doorbell miss to lower overhead and skip it on new HW - Wangxun: - txgbe: support Flow Director perfect filters - Ethernet NICs consumer, embedded and virtual: - Add driver for Tehuti Networks TN40xx chips - Add driver for Meta's internal NIC chips - Add driver for Ethernet MAC on Airoha EN7581 SoCs - Add driver for Renesas Ethernet-TSN devices - Google cloud vNIC: - flow steering support - Microsoft vNIC: - support page sizes other than 4KB on ARM64 - vmware vNIC: - support latency measurement (update to version 9) - VirtIO net: - support for Byte Queue Limits - support configuring thresholds for automatic IRQ moderation - support for AF_XDP Rx zero-copy - Synopsys (stmmac): - support for STM32MP13 SoC - let platforms select the right PCS implementation - TI: - icssg-prueth: add multicast filtering support - icssg-prueth: enable PTP timestamping and PPS - Renesas: - ravb: improve Rx performance 30-400% by using page pool, theaded NAPI and timer-based IRQ coalescing - ravb: add MII support for R-Car V4M - Cadence (macb): - macb: add ARP support to Wake-On-LAN - Cortina: - use phylib for RX and TX pause configuration - Ethernet switches: - nVidia/Mellanox: - support configuration of multipath hash seed - report more accurate max MTU - use page_pool to improve Rx performance - MediaTek: - mt7530: add support for bridge port isolation - Qualcomm: - qca8k: add support for bridge port isolation - Microchip: - lan9371/2: add 100BaseTX PHY support - NXP: - vsc73xx: implement VLAN operations - Ethernet PHYs: - aquantia: enable support for aqr115c - aquantia: add support for PHY LEDs - realtek: add support for rtl8224 2.5Gbps PHY - xpcs: add memory-mapped device support - add BroadR-Reach link mode and support in Broadcom's PHY driver - CAN: - add document for ISO 15765-2 protocol support - mcp251xfd: workaround for erratum DS80000789E, use timestamps to catch when device returns incorrect FIFO status - WiFi: - mac80211/cfg80211: - parse Transmit Power Envelope (TPE) data in mac80211 instead of in drivers - improvements for 6 GHz regulatory flexibility - multi-link improvements - support multiple radios per wiphy - remove DEAUTH_NEED_MGD_TX_PREP flag - Intel (iwlwifi): - bump FW API to 91 for BZ/SC devices - report 64-bit radiotap timestamp - enable P2P low latency by default - handle Transmit Power Envelope (TPE) advertised by AP - remove support for older FW for new devices - fast resume (keeping the device configured) - mvm: re-enable Multi-Link Operation (MLO) - aggregation (A-MSDU) optimizations - MediaTek (mt76): - mt7925 Multi-Link Operation (MLO) support - Qualcomm (ath10k): - LED support for various chipsets - Qualcomm (ath12k): - remove unsupported Tx monitor handling - support channel 2 in 6 GHz band - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID Advertisements (EMA) - support dynamic VLAN - add panic handler for resetting the firmware state - DebugFS support for datapath statistics - WCN7850: support for Wake on WLAN - Microchip (wilc1000): - read MAC address during probe to make it visible to user space - suspend/resume improvements - TI (wl18xx): - support newer firmware versions - RealTek (rtw89): - preparation for RTL8852BE-VT support - Wake on WLAN support for WiFi 6 chips - 36-bit PCI DMA support - RealTek (rtlwifi): - RTL8192DU support - Broadcom (brcmfmac): - Management Frame Protection support (to enable WPA3) - Bluetooth: - qualcomm: use the power sequencer for QCA6390 - btusb: mediatek: add ISO data transmission functions - hci_bcm4377: add BCM4388 support - btintel: add support for BlazarU core - btintel: add support for Whale Peak2 - btnxpuart: add support for AW693 A1 chipset - btnxpuart: add support for IW615 chipset - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591" * tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits) eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering" tcp: Replace strncpy() with strscpy() wifi: ath12k: fix build vs old compiler tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child(). eth: fbnic: Write the TCAM tables used for RSS control and Rx to host eth: fbnic: Add L2 address programming eth: fbnic: Add basic Rx handling eth: fbnic: Add basic Tx handling eth: fbnic: Add link detection eth: fbnic: Add initial messaging to notify FW of our presence eth: fbnic: Implement Rx queue alloc/start/stop/free eth: fbnic: Implement Tx queue alloc/start/stop/free eth: fbnic: Allocate a netdevice and napi vectors with queues eth: fbnic: Add FW communication mechanism eth: fbnic: Add message parsing for FW messages eth: fbnic: Add register init to set PCIe/Ethernet device config eth: fbnic: Allocate core device specific structures and devlink interface eth: fbnic: Add scaffolding for Meta's NIC driver PCI: Add Meta Platforms vendor ID net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK ...
Diffstat (limited to 'net/core/filter.c')
-rw-r--r--net/core/filter.c210
1 files changed, 115 insertions, 95 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index 9933851c685e..4cf1d34f7617 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1658,9 +1658,12 @@ struct bpf_scratchpad {
__be32 diff[MAX_BPF_STACK / sizeof(__be32)];
u8 buff[MAX_BPF_STACK];
};
+ local_lock_t bh_lock;
};
-static DEFINE_PER_CPU(struct bpf_scratchpad, bpf_sp);
+static DEFINE_PER_CPU(struct bpf_scratchpad, bpf_sp) = {
+ .bh_lock = INIT_LOCAL_LOCK(bh_lock),
+};
static inline int __bpf_try_make_writable(struct sk_buff *skb,
unsigned int write_len)
@@ -2021,6 +2024,7 @@ BPF_CALL_5(bpf_csum_diff, __be32 *, from, u32, from_size,
struct bpf_scratchpad *sp = this_cpu_ptr(&bpf_sp);
u32 diff_size = from_size + to_size;
int i, j = 0;
+ __wsum ret;
/* This is quite flexible, some examples:
*
@@ -2034,12 +2038,15 @@ BPF_CALL_5(bpf_csum_diff, __be32 *, from, u32, from_size,
diff_size > sizeof(sp->diff)))
return -EINVAL;
+ local_lock_nested_bh(&bpf_sp.bh_lock);
for (i = 0; i < from_size / sizeof(__be32); i++, j++)
sp->diff[j] = ~from[i];
for (i = 0; i < to_size / sizeof(__be32); i++, j++)
sp->diff[j] = to[i];
- return csum_partial(sp->diff, diff_size, seed);
+ ret = csum_partial(sp->diff, diff_size, seed);
+ local_unlock_nested_bh(&bpf_sp.bh_lock);
+ return ret;
}
static const struct bpf_func_proto bpf_csum_diff_proto = {
@@ -2279,12 +2286,12 @@ static int __bpf_redirect_neigh_v6(struct sk_buff *skb, struct net_device *dev,
err = bpf_out_neigh_v6(net, skb, dev, nh);
if (unlikely(net_xmit_eval(err)))
- dev->stats.tx_errors++;
+ DEV_STATS_INC(dev, tx_errors);
else
ret = NET_XMIT_SUCCESS;
goto out_xmit;
out_drop:
- dev->stats.tx_errors++;
+ DEV_STATS_INC(dev, tx_errors);
kfree_skb(skb);
out_xmit:
return ret;
@@ -2385,12 +2392,12 @@ static int __bpf_redirect_neigh_v4(struct sk_buff *skb, struct net_device *dev,
err = bpf_out_neigh_v4(net, skb, dev, nh);
if (unlikely(net_xmit_eval(err)))
- dev->stats.tx_errors++;
+ DEV_STATS_INC(dev, tx_errors);
else
ret = NET_XMIT_SUCCESS;
goto out_xmit;
out_drop:
- dev->stats.tx_errors++;
+ DEV_STATS_INC(dev, tx_errors);
kfree_skb(skb);
out_xmit:
return ret;
@@ -2476,9 +2483,6 @@ static const struct bpf_func_proto bpf_clone_redirect_proto = {
.arg3_type = ARG_ANYTHING,
};
-DEFINE_PER_CPU(struct bpf_redirect_info, bpf_redirect_info);
-EXPORT_PER_CPU_SYMBOL_GPL(bpf_redirect_info);
-
static struct net_device *skb_get_peer_dev(struct net_device *dev)
{
const struct net_device_ops *ops = dev->netdev_ops;
@@ -2491,7 +2495,7 @@ static struct net_device *skb_get_peer_dev(struct net_device *dev)
int skb_do_redirect(struct sk_buff *skb)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
struct net *net = dev_net(skb->dev);
struct net_device *dev;
u32 flags = ri->flags;
@@ -2524,7 +2528,7 @@ out_drop:
BPF_CALL_2(bpf_redirect, u32, ifindex, u64, flags)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
if (unlikely(flags & (~(BPF_F_INGRESS) | BPF_F_REDIRECT_INTERNAL)))
return TC_ACT_SHOT;
@@ -2545,7 +2549,7 @@ static const struct bpf_func_proto bpf_redirect_proto = {
BPF_CALL_2(bpf_redirect_peer, u32, ifindex, u64, flags)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
if (unlikely(flags))
return TC_ACT_SHOT;
@@ -2567,7 +2571,7 @@ static const struct bpf_func_proto bpf_redirect_peer_proto = {
BPF_CALL_4(bpf_redirect_neigh, u32, ifindex, struct bpf_redir_neigh *, params,
int, plen, u64, flags)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
if (unlikely((plen && plen < sizeof(*params)) || flags))
return TC_ACT_SHOT;
@@ -4273,50 +4277,50 @@ static const struct bpf_func_proto bpf_xdp_adjust_meta_proto = {
*/
void xdp_do_flush(void)
{
- __dev_flush();
- __cpu_map_flush();
- __xsk_map_flush();
+ struct list_head *lh_map, *lh_dev, *lh_xsk;
+
+ bpf_net_ctx_get_all_used_flush_lists(&lh_map, &lh_dev, &lh_xsk);
+ if (lh_dev)
+ __dev_flush(lh_dev);
+ if (lh_map)
+ __cpu_map_flush(lh_map);
+ if (lh_xsk)
+ __xsk_map_flush(lh_xsk);
}
EXPORT_SYMBOL_GPL(xdp_do_flush);
#if defined(CONFIG_DEBUG_NET) && defined(CONFIG_BPF_SYSCALL)
void xdp_do_check_flushed(struct napi_struct *napi)
{
- bool ret;
+ struct list_head *lh_map, *lh_dev, *lh_xsk;
+ bool missed = false;
- ret = dev_check_flush();
- ret |= cpu_map_check_flush();
- ret |= xsk_map_check_flush();
+ bpf_net_ctx_get_all_used_flush_lists(&lh_map, &lh_dev, &lh_xsk);
+ if (lh_dev) {
+ __dev_flush(lh_dev);
+ missed = true;
+ }
+ if (lh_map) {
+ __cpu_map_flush(lh_map);
+ missed = true;
+ }
+ if (lh_xsk) {
+ __xsk_map_flush(lh_xsk);
+ missed = true;
+ }
- WARN_ONCE(ret, "Missing xdp_do_flush() invocation after NAPI by %ps\n",
+ WARN_ONCE(missed, "Missing xdp_do_flush() invocation after NAPI by %ps\n",
napi->poll);
}
#endif
-void bpf_clear_redirect_map(struct bpf_map *map)
-{
- struct bpf_redirect_info *ri;
- int cpu;
-
- for_each_possible_cpu(cpu) {
- ri = per_cpu_ptr(&bpf_redirect_info, cpu);
- /* Avoid polluting remote cacheline due to writes if
- * not needed. Once we pass this test, we need the
- * cmpxchg() to make sure it hasn't been changed in
- * the meantime by remote CPU.
- */
- if (unlikely(READ_ONCE(ri->map) == map))
- cmpxchg(&ri->map, map, NULL);
- }
-}
-
DEFINE_STATIC_KEY_FALSE(bpf_master_redirect_enabled_key);
EXPORT_SYMBOL_GPL(bpf_master_redirect_enabled_key);
u32 xdp_master_redirect(struct xdp_buff *xdp)
{
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
struct net_device *master, *slave;
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
master = netdev_master_upper_dev_get_rcu(xdp->rxq->dev);
slave = master->netdev_ops->ndo_xdp_get_xmit_slave(master, xdp);
@@ -4388,7 +4392,7 @@ static __always_inline int __xdp_do_redirect_frame(struct bpf_redirect_info *ri,
map = READ_ONCE(ri->map);
/* The map pointer is cleared when the map is being torn
- * down by bpf_clear_redirect_map()
+ * down by dev_map_free()
*/
if (unlikely(!map)) {
err = -ENOENT;
@@ -4433,7 +4437,7 @@ err:
int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp,
struct bpf_prog *xdp_prog)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
enum bpf_map_type map_type = ri->map_type;
if (map_type == BPF_MAP_TYPE_XSKMAP)
@@ -4447,7 +4451,7 @@ EXPORT_SYMBOL_GPL(xdp_do_redirect);
int xdp_do_redirect_frame(struct net_device *dev, struct xdp_buff *xdp,
struct xdp_frame *xdpf, struct bpf_prog *xdp_prog)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
enum bpf_map_type map_type = ri->map_type;
if (map_type == BPF_MAP_TYPE_XSKMAP)
@@ -4464,7 +4468,7 @@ static int xdp_do_generic_redirect_map(struct net_device *dev,
enum bpf_map_type map_type, u32 map_id,
u32 flags)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
struct bpf_map *map;
int err;
@@ -4476,7 +4480,7 @@ static int xdp_do_generic_redirect_map(struct net_device *dev,
map = READ_ONCE(ri->map);
/* The map pointer is cleared when the map is being torn
- * down by bpf_clear_redirect_map()
+ * down by dev_map_free()
*/
if (unlikely(!map)) {
err = -ENOENT;
@@ -4518,7 +4522,7 @@ err:
int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
struct xdp_buff *xdp, struct bpf_prog *xdp_prog)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
enum bpf_map_type map_type = ri->map_type;
void *fwd = ri->tgt_value;
u32 map_id = ri->map_id;
@@ -4554,7 +4558,7 @@ err:
BPF_CALL_2(bpf_xdp_redirect, u32, ifindex, u64, flags)
{
- struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info);
+ struct bpf_redirect_info *ri = bpf_net_ctx_get_ri();
if (unlikely(flags))
return XDP_ABORTED;
@@ -6455,6 +6459,7 @@ BPF_CALL_4(bpf_lwt_seg6_store_bytes, struct sk_buff *, skb, u32, offset,
void *srh_tlvs, *srh_end, *ptr;
int srhoff = 0;
+ lockdep_assert_held(&srh_state->bh_lock);
if (srh == NULL)
return -EINVAL;
@@ -6511,6 +6516,7 @@ BPF_CALL_4(bpf_lwt_seg6_action, struct sk_buff *, skb,
int hdroff = 0;
int err;
+ lockdep_assert_held(&srh_state->bh_lock);
switch (action) {
case SEG6_LOCAL_ACTION_END_X:
if (!seg6_bpf_has_valid_srh(skb))
@@ -6587,6 +6593,7 @@ BPF_CALL_3(bpf_lwt_seg6_adjust_srh, struct sk_buff *, skb, u32, offset,
int srhoff = 0;
int ret;
+ lockdep_assert_held(&srh_state->bh_lock);
if (unlikely(srh == NULL))
return -EINVAL;
@@ -6820,7 +6827,7 @@ static const struct bpf_func_proto bpf_skc_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6839,7 +6846,7 @@ static const struct bpf_func_proto bpf_sk_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6858,7 +6865,7 @@ static const struct bpf_func_proto bpf_sk_lookup_udp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6882,7 +6889,7 @@ static const struct bpf_func_proto bpf_tc_skc_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6906,7 +6913,7 @@ static const struct bpf_func_proto bpf_tc_sk_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6930,7 +6937,7 @@ static const struct bpf_func_proto bpf_tc_sk_lookup_udp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6968,7 +6975,7 @@ static const struct bpf_func_proto bpf_xdp_sk_lookup_udp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -6992,7 +6999,7 @@ static const struct bpf_func_proto bpf_xdp_skc_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -7016,7 +7023,7 @@ static const struct bpf_func_proto bpf_xdp_sk_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -7036,7 +7043,7 @@ static const struct bpf_func_proto bpf_sock_addr_skc_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCK_COMMON_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -7055,7 +7062,7 @@ static const struct bpf_func_proto bpf_sock_addr_sk_lookup_tcp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -7074,7 +7081,7 @@ static const struct bpf_func_proto bpf_sock_addr_sk_lookup_udp_proto = {
.ret_type = RET_PTR_TO_SOCKET_OR_NULL,
.arg1_type = ARG_PTR_TO_CTX,
.arg2_type = ARG_PTR_TO_MEM | MEM_RDONLY,
- .arg3_type = ARG_CONST_SIZE,
+ .arg3_type = ARG_CONST_SIZE_OR_ZERO,
.arg4_type = ARG_ANYTHING,
.arg5_type = ARG_ANYTHING,
};
@@ -7731,17 +7738,21 @@ BPF_CALL_3(bpf_skb_set_tstamp, struct sk_buff *, skb,
return -EOPNOTSUPP;
switch (tstamp_type) {
- case BPF_SKB_TSTAMP_DELIVERY_MONO:
+ case BPF_SKB_CLOCK_REALTIME:
+ skb->tstamp = tstamp;
+ skb->tstamp_type = SKB_CLOCK_REALTIME;
+ break;
+ case BPF_SKB_CLOCK_MONOTONIC:
if (!tstamp)
return -EINVAL;
skb->tstamp = tstamp;
- skb->mono_delivery_time = 1;
+ skb->tstamp_type = SKB_CLOCK_MONOTONIC;
break;
- case BPF_SKB_TSTAMP_UNSPEC:
- if (tstamp)
+ case BPF_SKB_CLOCK_TAI:
+ if (!tstamp)
return -EINVAL;
- skb->tstamp = 0;
- skb->mono_delivery_time = 0;
+ skb->tstamp = tstamp;
+ skb->tstamp_type = SKB_CLOCK_TAI;
break;
default:
return -EINVAL;
@@ -9392,16 +9403,17 @@ static struct bpf_insn *bpf_convert_tstamp_type_read(const struct bpf_insn *si,
{
__u8 value_reg = si->dst_reg;
__u8 skb_reg = si->src_reg;
- /* AX is needed because src_reg and dst_reg could be the same */
- __u8 tmp_reg = BPF_REG_AX;
-
- *insn++ = BPF_LDX_MEM(BPF_B, tmp_reg, skb_reg,
- SKB_BF_MONO_TC_OFFSET);
- *insn++ = BPF_JMP32_IMM(BPF_JSET, tmp_reg,
- SKB_MONO_DELIVERY_TIME_MASK, 2);
- *insn++ = BPF_MOV32_IMM(value_reg, BPF_SKB_TSTAMP_UNSPEC);
- *insn++ = BPF_JMP_A(1);
- *insn++ = BPF_MOV32_IMM(value_reg, BPF_SKB_TSTAMP_DELIVERY_MONO);
+ BUILD_BUG_ON(__SKB_CLOCK_MAX != (int)BPF_SKB_CLOCK_TAI);
+ BUILD_BUG_ON(SKB_CLOCK_REALTIME != (int)BPF_SKB_CLOCK_REALTIME);
+ BUILD_BUG_ON(SKB_CLOCK_MONOTONIC != (int)BPF_SKB_CLOCK_MONOTONIC);
+ BUILD_BUG_ON(SKB_CLOCK_TAI != (int)BPF_SKB_CLOCK_TAI);
+ *insn++ = BPF_LDX_MEM(BPF_B, value_reg, skb_reg, SKB_BF_MONO_TC_OFFSET);
+ *insn++ = BPF_ALU32_IMM(BPF_AND, value_reg, SKB_TSTAMP_TYPE_MASK);
+#ifdef __BIG_ENDIAN_BITFIELD
+ *insn++ = BPF_ALU32_IMM(BPF_RSH, value_reg, SKB_TSTAMP_TYPE_RSHIFT);
+#else
+ BUILD_BUG_ON(!(SKB_TSTAMP_TYPE_MASK & 0x1));
+#endif
return insn;
}
@@ -9444,11 +9456,12 @@ static struct bpf_insn *bpf_convert_tstamp_read(const struct bpf_prog *prog,
__u8 tmp_reg = BPF_REG_AX;
*insn++ = BPF_LDX_MEM(BPF_B, tmp_reg, skb_reg, SKB_BF_MONO_TC_OFFSET);
- *insn++ = BPF_ALU32_IMM(BPF_AND, tmp_reg,
- TC_AT_INGRESS_MASK | SKB_MONO_DELIVERY_TIME_MASK);
- *insn++ = BPF_JMP32_IMM(BPF_JNE, tmp_reg,
- TC_AT_INGRESS_MASK | SKB_MONO_DELIVERY_TIME_MASK, 2);
- /* skb->tc_at_ingress && skb->mono_delivery_time,
+ /* check if ingress mask bits is set */
+ *insn++ = BPF_JMP32_IMM(BPF_JSET, tmp_reg, TC_AT_INGRESS_MASK, 1);
+ *insn++ = BPF_JMP_A(4);
+ *insn++ = BPF_JMP32_IMM(BPF_JSET, tmp_reg, SKB_TSTAMP_TYPE_MASK, 1);
+ *insn++ = BPF_JMP_A(2);
+ /* skb->tc_at_ingress && skb->tstamp_type,
* read 0 as the (rcv) timestamp.
*/
*insn++ = BPF_MOV64_IMM(value_reg, 0);
@@ -9473,7 +9486,7 @@ static struct bpf_insn *bpf_convert_tstamp_write(const struct bpf_prog *prog,
* the bpf prog is aware the tstamp could have delivery time.
* Thus, write skb->tstamp as is if tstamp_type_access is true.
* Otherwise, writing at ingress will have to clear the
- * mono_delivery_time bit also.
+ * skb->tstamp_type bit also.
*/
if (!prog->tstamp_type_access) {
__u8 tmp_reg = BPF_REG_AX;
@@ -9483,8 +9496,8 @@ static struct bpf_insn *bpf_convert_tstamp_write(const struct bpf_prog *prog,
*insn++ = BPF_JMP32_IMM(BPF_JSET, tmp_reg, TC_AT_INGRESS_MASK, 1);
/* goto <store> */
*insn++ = BPF_JMP_A(2);
- /* <clear>: mono_delivery_time */
- *insn++ = BPF_ALU32_IMM(BPF_AND, tmp_reg, ~SKB_MONO_DELIVERY_TIME_MASK);
+ /* <clear>: skb->tstamp_type */
+ *insn++ = BPF_ALU32_IMM(BPF_AND, tmp_reg, ~SKB_TSTAMP_TYPE_MASK);
*insn++ = BPF_STX_MEM(BPF_B, skb_reg, tmp_reg, SKB_BF_MONO_TC_OFFSET);
}
#endif
@@ -11040,7 +11053,6 @@ const struct bpf_verifier_ops lwt_seg6local_verifier_ops = {
};
const struct bpf_prog_ops lwt_seg6local_prog_ops = {
- .test_run = bpf_prog_test_run_skb,
};
const struct bpf_verifier_ops cg_sock_verifier_ops = {
@@ -11858,28 +11870,34 @@ bpf_sk_base_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
}
__bpf_kfunc_start_defs();
-__bpf_kfunc int bpf_dynptr_from_skb(struct sk_buff *skb, u64 flags,
- struct bpf_dynptr_kern *ptr__uninit)
+__bpf_kfunc int bpf_dynptr_from_skb(struct __sk_buff *s, u64 flags,
+ struct bpf_dynptr *ptr__uninit)
{
+ struct bpf_dynptr_kern *ptr = (struct bpf_dynptr_kern *)ptr__uninit;
+ struct sk_buff *skb = (struct sk_buff *)s;
+
if (flags) {
- bpf_dynptr_set_null(ptr__uninit);
+ bpf_dynptr_set_null(ptr);
return -EINVAL;
}
- bpf_dynptr_init(ptr__uninit, skb, BPF_DYNPTR_TYPE_SKB, 0, skb->len);
+ bpf_dynptr_init(ptr, skb, BPF_DYNPTR_TYPE_SKB, 0, skb->len);
return 0;
}
-__bpf_kfunc int bpf_dynptr_from_xdp(struct xdp_buff *xdp, u64 flags,
- struct bpf_dynptr_kern *ptr__uninit)
+__bpf_kfunc int bpf_dynptr_from_xdp(struct xdp_md *x, u64 flags,
+ struct bpf_dynptr *ptr__uninit)
{
+ struct bpf_dynptr_kern *ptr = (struct bpf_dynptr_kern *)ptr__uninit;
+ struct xdp_buff *xdp = (struct xdp_buff *)x;
+
if (flags) {
- bpf_dynptr_set_null(ptr__uninit);
+ bpf_dynptr_set_null(ptr);
return -EINVAL;
}
- bpf_dynptr_init(ptr__uninit, xdp, BPF_DYNPTR_TYPE_XDP, 0, xdp_get_buff_len(xdp));
+ bpf_dynptr_init(ptr, xdp, BPF_DYNPTR_TYPE_XDP, 0, xdp_get_buff_len(xdp));
return 0;
}
@@ -11905,10 +11923,11 @@ __bpf_kfunc int bpf_sock_addr_set_sun_path(struct bpf_sock_addr_kern *sa_kern,
return 0;
}
-__bpf_kfunc int bpf_sk_assign_tcp_reqsk(struct sk_buff *skb, struct sock *sk,
+__bpf_kfunc int bpf_sk_assign_tcp_reqsk(struct __sk_buff *s, struct sock *sk,
struct bpf_tcp_req_attrs *attrs, int attrs__sz)
{
#if IS_ENABLED(CONFIG_SYN_COOKIES)
+ struct sk_buff *skb = (struct sk_buff *)s;
const struct request_sock_ops *ops;
struct inet_request_sock *ireq;
struct tcp_request_sock *treq;
@@ -12003,16 +12022,17 @@ __bpf_kfunc int bpf_sk_assign_tcp_reqsk(struct sk_buff *skb, struct sock *sk,
__bpf_kfunc_end_defs();
-int bpf_dynptr_from_skb_rdonly(struct sk_buff *skb, u64 flags,
- struct bpf_dynptr_kern *ptr__uninit)
+int bpf_dynptr_from_skb_rdonly(struct __sk_buff *skb, u64 flags,
+ struct bpf_dynptr *ptr__uninit)
{
+ struct bpf_dynptr_kern *ptr = (struct bpf_dynptr_kern *)ptr__uninit;
int err;
err = bpf_dynptr_from_skb(skb, flags, ptr__uninit);
if (err)
return err;
- bpf_dynptr_set_rdonly(ptr__uninit);
+ bpf_dynptr_set_rdonly(ptr);
return 0;
}