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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 

Pull networking fixes from David Miller:

 1) Fix error path in netdevsim, from Jakub Kicinski.

 2) Default values listed in tcp_wmem and tcp_rmem documentation were
    inaccurate, from Tonghao Zhang.

 3) Fix route leaks in SCTP, both for ipv4 and ipv6. From Alexey Kodanev
    and Tommi Rantala.

 4) Fix "MASK < Y" meant to be "MASK << Y" in xgbe driver, from Wolfram
    Sang.

 5) Use after free in u32_destroy_key(), from Paolo Abeni.

 6) Fix two TX issues in be2net driver, from Suredh Reddy.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (25 commits)
  be2net: Handle transmit completion errors in Lancer
  be2net: Fix HW stall issue in Lancer
  RDS: IB: Fix null pointer issue
  nfp: fix kdoc warnings on nested structures
  sample/bpf: fix erspan metadata
  net: erspan: fix erspan config overwrite
  net: erspan: fix metadata extraction
  cls_u32: fix use after free in u32_destroy_key()
  net: amd-xgbe: fix comparison to bitshift when dealing with a mask
  net: phy: Handle not having GPIO enabled in the kernel
  ibmvnic: fix empty firmware version and errors cleanup
  sctp: fix dst refcnt leak in sctp_v4_get_dst
  sctp: fix dst refcnt leak in sctp_v6_get_dst()
  dwc-xlgmac: remove Jie Deng as co-maintainer
  doc: Change the min default value of tcp_wmem/tcp_rmem.
  samples/bpf: use bpf_set_link_xdp_fd
  libbpf: add missing SPDX-License-Identifier
  libbpf: add error reporting in XDP
  libbpf: add function to setup XDP
  tools: add netlink.h and if_link.h in tools uapi
  ...
This commit is contained in:
Linus Torvalds 2018-02-06 19:00:42 -08:00
parent cbd7b8a76b 176bfb406d
commit 0dc400f41f
51 changed files with 1915 additions and 334 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
Documentation/bpf/bpf_devel_QA.txt
View File

@ -516,4 +516,35 @@ A: LLVM has a -mcpu selector for the BPF back end in order to allow the
By the way, the BPF kernel selftests run with -mcpu=probe for better
test coverage.
Q: In some cases clang flag "-target bpf" is used but in other cases the
default clang target, which matches the underlying architecture, is used.
What is the difference and when I should use which?
A: Although LLVM IR generation and optimization try to stay architecture
independent, "-target <arch>" still has some impact on generated code:
- BPF program may recursively include header file(s) with file scope
inline assembly codes. The default target can handle this well,
while bpf target may fail if bpf backend assembler does not
understand these assembly codes, which is true in most cases.
- When compiled without -g, additional elf sections, e.g.,
.eh_frame and .rela.eh_frame, may be present in the object file
with default target, but not with bpf target.
- The default target may turn a C switch statement into a switch table
lookup and jump operation. Since the switch table is placed
in the global readonly section, the bpf program will fail to load.
The bpf target does not support switch table optimization.
The clang option "-fno-jump-tables" can be used to disable
switch table generation.
You should use default target when:
- Your program includes a header file, e.g., ptrace.h, which eventually
pulls in some header files containing file scope host assembly codes.
- You can add "-fno-jump-tables" to work around the switch table issue.
Otherwise, you can use bpf target.
Happy BPF hacking!

4
Documentation/networking/ip-sysctl.txt
View File

@ -508,7 +508,7 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max
min: Minimal size of receive buffer used by TCP sockets.
It is guaranteed to each TCP socket, even under moderate memory
pressure.
Default: 1 page
Default: 4K
default: initial size of receive buffer used by TCP sockets.
This value overrides net.core.rmem_default used by other protocols.
@ -667,7 +667,7 @@ tcp_window_scaling - BOOLEAN
tcp_wmem - vector of 3 INTEGERs: min, default, max
min: Amount of memory reserved for send buffers for TCP sockets.
Each TCP socket has rights to use it due to fact of its birth.
Default: 1 page
Default: 4K
default: initial size of send buffer used by TCP sockets. This
value overrides net.core.wmem_default used by other protocols.

1
MAINTAINERS
View File

@ -13326,7 +13326,6 @@ F: include/linux/platform_data/dma-dw.h
F: drivers/dma/dw/
SYNOPSYS DESIGNWARE ENTERPRISE ETHERNET DRIVER
M: Jie Deng <jiedeng@synopsys.com>
M: Jose Abreu <Jose.Abreu@synopsys.com>
L: netdev@vger.kernel.org
S: Supported

2
drivers/net/ethernet/amd/xgbe/xgbe-drv.c
View File

@ -595,7 +595,7 @@ static void xgbe_isr_task(unsigned long data)
reissue_mask = 1 << 0;
if (!pdata->per_channel_irq)
reissue_mask |= 0xffff < 4;
reissue_mask |= 0xffff << 4;
XP_IOWRITE(pdata, XP_INT_REISSUE_EN, reissue_mask);
}

7
drivers/net/ethernet/emulex/benet/be.h
View File

@ -248,6 +248,7 @@ struct be_tx_stats {
u32 tx_spoof_check_err;
u32 tx_qinq_err;
u32 tx_internal_parity_err;
u32 tx_sge_err;
struct u64_stats_sync sync;
struct u64_stats_sync sync_compl;
};
@ -944,8 +945,10 @@ static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
#define BE_ERROR_EEH 1
#define BE_ERROR_UE BIT(1)
#define BE_ERROR_FW BIT(2)
#define BE_ERROR_HW (BE_ERROR_EEH | BE_ERROR_UE)
#define BE_ERROR_ANY (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW)
#define BE_ERROR_TX BIT(3)
#define BE_ERROR_HW (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_TX)
#define BE_ERROR_ANY (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW | \
BE_ERROR_TX)
#define BE_CLEAR_ALL 0xFF
static inline u8 be_check_error(struct be_adapter *adapter, u32 err_type)

1
drivers/net/ethernet/emulex/benet/be_ethtool.c
View File

@ -189,6 +189,7 @@ static const struct be_ethtool_stat et_tx_stats[] = {
* packet data. This counter is applicable only for Lancer adapters.
*/
{DRVSTAT_TX_INFO(tx_internal_parity_err)},
{DRVSTAT_TX_INFO(tx_sge_err)},
{DRVSTAT_TX_INFO(tx_bytes)},
{DRVSTAT_TX_INFO(tx_pkts)},
{DRVSTAT_TX_INFO(tx_vxlan_offload_pkts)},

1
drivers/net/ethernet/emulex/benet/be_hw.h
View File

@ -261,6 +261,7 @@ struct be_eth_hdr_wrb {
#define LANCER_TX_COMP_HSW_DROP_MAC_ERR 0x3
#define LANCER_TX_COMP_HSW_DROP_VLAN_ERR 0x5
#define LANCER_TX_COMP_QINQ_ERR 0x7
#define LANCER_TX_COMP_SGE_ERR 0x9
#define LANCER_TX_COMP_PARITY_ERR 0xb
#define LANCER_TX_COMP_DMA_ERR 0xd

113
drivers/net/ethernet/emulex/benet/be_main.c
View File

@ -2583,7 +2583,48 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp, u32 frags_needed)
}
}
static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo)
static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status)
{
switch (status) {
case BE_TX_COMP_HDR_PARSE_ERR:
tx_stats(txo)->tx_hdr_parse_err++;
break;
case BE_TX_COMP_NDMA_ERR:
tx_stats(txo)->tx_dma_err++;
break;
case BE_TX_COMP_ACL_ERR:
tx_stats(txo)->tx_spoof_check_err++;
break;
}
}
static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status)
{
switch (status) {
case LANCER_TX_COMP_LSO_ERR:
tx_stats(txo)->tx_tso_err++;
break;
case LANCER_TX_COMP_HSW_DROP_MAC_ERR:
case LANCER_TX_COMP_HSW_DROP_VLAN_ERR:
tx_stats(txo)->tx_spoof_check_err++;
break;
case LANCER_TX_COMP_QINQ_ERR:
tx_stats(txo)->tx_qinq_err++;
break;
case LANCER_TX_COMP_PARITY_ERR:
tx_stats(txo)->tx_internal_parity_err++;
break;
case LANCER_TX_COMP_DMA_ERR:
tx_stats(txo)->tx_dma_err++;
break;
case LANCER_TX_COMP_SGE_ERR:
tx_stats(txo)->tx_sge_err++;
break;
}
}
static struct be_tx_compl_info *be_tx_compl_get(struct be_adapter *adapter,
struct be_tx_obj *txo)
{
struct be_queue_info *tx_cq = &txo->cq;
struct be_tx_compl_info *txcp = &txo->txcp;
@ -2599,6 +2640,24 @@ static struct be_tx_compl_info *be_tx_compl_get(struct be_tx_obj *txo)
txcp->status = GET_TX_COMPL_BITS(status, compl);
txcp->end_index = GET_TX_COMPL_BITS(wrb_index, compl);
if (txcp->status) {
if (lancer_chip(adapter)) {
lancer_update_tx_err(txo, txcp->status);
/* Reset the adapter incase of TSO,
* SGE or Parity error
*/
if (txcp->status == LANCER_TX_COMP_LSO_ERR ||
txcp->status == LANCER_TX_COMP_PARITY_ERR ||
txcp->status == LANCER_TX_COMP_SGE_ERR)
be_set_error(adapter, BE_ERROR_TX);
} else {
be_update_tx_err(txo, txcp->status);
}
}
if (be_check_error(adapter, BE_ERROR_TX))
return NULL;
compl->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
queue_tail_inc(tx_cq);
return txcp;
@ -2741,7 +2800,7 @@ static void be_tx_compl_clean(struct be_adapter *adapter)
cmpl = 0;
num_wrbs = 0;
txq = &txo->q;
while ((txcp = be_tx_compl_get(txo))) {
while ((txcp = be_tx_compl_get(adapter, txo))) {
num_wrbs +=
be_tx_compl_process(adapter, txo,
txcp->end_index);
@ -3120,42 +3179,6 @@ static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
return work_done;
}
static inline void be_update_tx_err(struct be_tx_obj *txo, u8 status)
{
switch (status) {
case BE_TX_COMP_HDR_PARSE_ERR:
tx_stats(txo)->tx_hdr_parse_err++;
break;
case BE_TX_COMP_NDMA_ERR:
tx_stats(txo)->tx_dma_err++;
break;
case BE_TX_COMP_ACL_ERR:
tx_stats(txo)->tx_spoof_check_err++;
break;
}
}
static inline void lancer_update_tx_err(struct be_tx_obj *txo, u8 status)
{
switch (status) {
case LANCER_TX_COMP_LSO_ERR:
tx_stats(txo)->tx_tso_err++;
break;
case LANCER_TX_COMP_HSW_DROP_MAC_ERR:
case LANCER_TX_COMP_HSW_DROP_VLAN_ERR:
tx_stats(txo)->tx_spoof_check_err++;
break;
case LANCER_TX_COMP_QINQ_ERR:
tx_stats(txo)->tx_qinq_err++;
break;
case LANCER_TX_COMP_PARITY_ERR:
tx_stats(txo)->tx_internal_parity_err++;
break;
case LANCER_TX_COMP_DMA_ERR:
tx_stats(txo)->tx_dma_err++;
break;
}
}
static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
int idx)
@ -3163,16 +3186,9 @@ static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
int num_wrbs = 0, work_done = 0;
struct be_tx_compl_info *txcp;
while ((txcp = be_tx_compl_get(txo))) {
while ((txcp = be_tx_compl_get(adapter, txo))) {
num_wrbs += be_tx_compl_process(adapter, txo, txcp->end_index);
work_done++;
if (txcp->status) {
if (lancer_chip(adapter))
lancer_update_tx_err(txo, txcp->status);
else
be_update_tx_err(txo, txcp->status);
}
}
if (work_done) {
@ -5104,9 +5120,12 @@ static netdev_features_t be_features_check(struct sk_buff *skb,
features &= ~NETIF_F_TSO6;
/* Lancer cannot handle the packet with MSS less than 256.
* Also it can't handle a TSO packet with a single segment
* Disable the GSO support in such cases
*/
if (lancer_chip(adapter) && skb_shinfo(skb)->gso_size < 256)
if (lancer_chip(adapter) &&
(skb_shinfo(skb)->gso_size < 256 ||
skb_shinfo(skb)->gso_segs == 1))
features &= ~NETIF_F_GSO_MASK;
}

14
drivers/net/ethernet/ibm/ibmvnic.c
View File

@ -3286,7 +3286,7 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq,
struct ibmvnic_adapter *adapter)
{
struct device *dev = &adapter->vdev->dev;
unsigned char *substr = NULL, *ptr = NULL;
unsigned char *substr = NULL;
u8 fw_level_len = 0;
memset(adapter->fw_version, 0, 32);
@ -3306,10 +3306,6 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq,
substr = strnstr(adapter->vpd->buff, "RM", adapter->vpd->len);
if (!substr) {
dev_info(dev, "Warning - No FW level has been provided in the VPD buffer by the VIOS Server\n");
ptr = strncpy((char *)adapter->fw_version, "N/A",
3 * sizeof(char));
if (!ptr)
dev_err(dev, "Failed to inform that firmware version is unavailable to the adapter\n");
goto complete;
}
@ -3324,16 +3320,14 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq,
/* copy firmware version string from vpd into adapter */
if ((substr + 3 + fw_level_len) <
(adapter->vpd->buff + adapter->vpd->len)) {
ptr = strncpy((char *)adapter->fw_version,
substr + 3, fw_level_len);
if (!ptr)
dev_err(dev, "Failed to isolate FW level string\n");
strncpy((char *)adapter->fw_version, substr + 3, fw_level_len);
} else {
dev_info(dev, "FW substr extrapolated VPD buff\n");
}
complete:
if (adapter->fw_version[0] == '\0')
strncpy((char *)adapter->fw_version, "N/A", 3 * sizeof(char));
complete(&adapter->fw_done);
}

24
drivers/net/ethernet/netronome/nfp/bpf/main.h
View File

@ -112,22 +112,22 @@ enum pkt_vec {
* @map_elems_in_use: number of elements allocated to offloaded maps
*
* @adjust_head: adjust head capability
* @flags: extra flags for adjust head
* @off_min: minimal packet offset within buffer required
* @off_max: maximum packet offset within buffer required
* @guaranteed_sub: amount of negative adjustment guaranteed possible
* @guaranteed_add: amount of positive adjustment guaranteed possible
* @adjust_head.flags: extra flags for adjust head
* @adjust_head.off_min: minimal packet offset within buffer required
* @adjust_head.off_max: maximum packet offset within buffer required
* @adjust_head.guaranteed_sub: negative adjustment guaranteed possible
* @adjust_head.guaranteed_add: positive adjustment guaranteed possible
*
* @maps: map capability
* @types: supported map types
* @max_maps: max number of maps supported
* @max_elems: max number of entries in each map
* @max_key_sz: max size of map key
* @max_val_sz: max size of map value
* @max_elem_sz: max size of map entry (key + value)
* @maps.types: supported map types
* @maps.max_maps: max number of maps supported
* @maps.max_elems: max number of entries in each map
* @maps.max_key_sz: max size of map key
* @maps.max_val_sz: max size of map value
* @maps.max_elem_sz: max size of map entry (key + value)
*
* @helpers: helper addressess for various calls
* @map_lookup: map lookup helper address
* @helpers.map_lookup: map lookup helper address
*/
struct nfp_app_bpf {
struct nfp_app *app;

10
drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
View File

@ -50,9 +50,9 @@
* @seq: sequence number of the message
* @count: number of tunnels report in message
* @flags: options part of the request
* @ipv4: dest IPv4 address of active route
* @egress_port: port the encapsulated packet egressed
* @extra: reserved for future use
* @tun_info.ipv4: dest IPv4 address of active route
* @tun_info.egress_port: port the encapsulated packet egressed
* @tun_info.extra: reserved for future use
* @tun_info: tunnels that have sent traffic in reported period
*/
struct nfp_tun_active_tuns {
@ -132,8 +132,8 @@ struct nfp_ipv4_addr_entry {
* struct nfp_tun_mac_addr - configure MAC address of tunnel EP on NFP
* @reserved: reserved for future use
* @count: number of MAC addresses in the message
* @index: index of MAC address in the lookup table
* @addr: interface MAC address
* @addresses.index: index of MAC address in the lookup table
* @addresses.addr: interface MAC address
* @addresses: series of MACs to offload
*/
struct nfp_tun_mac_addr {

6
drivers/net/ethernet/netronome/nfp/nfp_net.h
View File

@ -193,7 +193,8 @@ struct nfp_net_tx_desc {
/**
* struct nfp_net_tx_buf - software TX buffer descriptor
* @skb: sk_buff associated with this buffer
* @skb: normal ring, sk_buff associated with this buffer
* @frag: XDP ring, page frag associated with this buffer
* @dma_addr: DMA mapping address of the buffer
* @fidx: Fragment index (-1 for the head and [0..nr_frags-1] for frags)
* @pkt_cnt: Number of packets to be produced out of the skb associated
@ -377,6 +378,9 @@ struct nfp_net_rx_ring {
* struct nfp_net_r_vector - Per ring interrupt vector configuration
* @nfp_net: Backpointer to nfp_net structure
* @napi: NAPI structure for this ring vec
* @tasklet: ctrl vNIC, tasklet for servicing the r_vec
* @queue: ctrl vNIC, send queue
* @lock: ctrl vNIC, r_vec lock protects @queue
* @tx_ring: Pointer to TX ring
* @rx_ring: Pointer to RX ring
* @xdp_ring: Pointer to an extra TX ring for XDP

43
drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
View File

@ -98,28 +98,29 @@ enum nfp_eth_fec {
* @max_index: max of @index fields of all @ports
* @ports: table of ports
*
* @eth_index: port index according to legacy ethX numbering
* @index: chip-wide first channel index
* @nbi: NBI index
* @base: first channel index (within NBI)
* @lanes: number of channels
* @speed: interface speed (in Mbps)
* @interface: interface (module) plugged in
* @media: media type of the @interface
* @fec: forward error correction mode
* @aneg: auto negotiation mode
* @mac_addr: interface MAC address
* @label_port: port id
* @label_subport: id of interface within port (for split ports)
* @enabled: is enabled?
* @tx_enabled: is TX enabled?
* @rx_enabled: is RX enabled?
* @override_changed: is media reconfig pending?
* @ports.eth_index: port index according to legacy ethX numbering
* @ports.index: chip-wide first channel index
* @ports.nbi: NBI index
* @ports.base: first channel index (within NBI)
* @ports.lanes: number of channels
* @ports.speed: interface speed (in Mbps)
* @ports.interface: interface (module) plugged in
* @ports.media: media type of the @interface
* @ports.fec: forward error correction mode
* @ports.aneg: auto negotiation mode
* @ports.mac_addr: interface MAC address
* @ports.label_port: port id
* @ports.label_subport: id of interface within port (for split ports)
* @ports.enabled: is enabled?
* @ports.tx_enabled: is TX enabled?
* @ports.rx_enabled: is RX enabled?
* @ports.override_changed: is media reconfig pending?
*
* @port_type: one of %PORT_* defines for ethtool
* @port_lanes: total number of lanes on the port (sum of lanes of all subports)
* @is_split: is interface part of a split port
* @fec_modes_supported: bitmap of FEC modes supported
* @ports.port_type: one of %PORT_* defines for ethtool
* @ports.port_lanes: total number of lanes on the port (sum of lanes of all
* subports)
* @ports.is_split: is interface part of a split port
* @ports.fec_modes_supported: bitmap of FEC modes supported
*/
struct nfp_eth_table {
unsigned int count;

21
drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
View File

@ -56,16 +56,17 @@
/**
* struct nfp_resource_entry - Resource table entry
* @owner: NFP CPP Lock, interface owner
* @key: NFP CPP Lock, posix_crc32(name, 8)
* @region: Memory region descriptor
* @name: ASCII, zero padded name
* @reserved
* @cpp_action: CPP Action
* @cpp_token: CPP Token
* @cpp_target: CPP Target ID
* @page_offset: 256-byte page offset into target's CPP address
* @page_size: size, in 256-byte pages
* @mutex: NFP CPP Lock
* @mutex.owner: NFP CPP Lock, interface owner
* @mutex.key: NFP CPP Lock, posix_crc32(name, 8)
* @region: Memory region descriptor
* @region.name: ASCII, zero padded name
* @region.reserved: padding
* @region.cpp_action: CPP Action
* @region.cpp_token: CPP Token
* @region.cpp_target: CPP Target ID
* @region.page_offset: 256-byte page offset into target's CPP address
* @region.page_size: size, in 256-byte pages
*/
struct nfp_resource_entry {
struct nfp_resource_entry_mutex {

5
drivers/net/netdevsim/bpf.c
View File

@ -480,8 +480,7 @@ static int
nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap)
{
struct nsim_bpf_bound_map *nmap;
unsigned int i;
int err;
int i, err;
if (WARN_ON(offmap->map.map_type != BPF_MAP_TYPE_ARRAY &&
offmap->map.map_type != BPF_MAP_TYPE_HASH))
@ -518,7 +517,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap)
return 0;
err_free:
while (--i) {
while (--i >= 0) {
kfree(nmap->entry[i].key);
kfree(nmap->entry[i].value);
}

3
drivers/net/phy/mdio_bus.c
View File

@ -56,7 +56,8 @@ static int mdiobus_register_gpiod(struct mdio_device *mdiodev)
gpiod = fwnode_get_named_gpiod(&mdiodev->dev.of_node->fwnode,
"reset-gpios", 0, GPIOD_OUT_LOW,
"PHY reset");
if (PTR_ERR(gpiod) == -ENOENT)
if (PTR_ERR(gpiod) == -ENOENT ||
PTR_ERR(gpiod) == -ENOSYS)
gpiod = NULL;
else if (IS_ERR(gpiod))
return PTR_ERR(gpiod);

6
include/linux/netdevice.h
View File

@ -3228,6 +3228,12 @@ static inline int netif_set_real_num_rx_queues(struct net_device *dev,
}
#endif
static inline struct netdev_rx_queue *
__netif_get_rx_queue(struct net_device *dev, unsigned int rxq)
{
return dev->_rx + rxq;
}
#ifdef CONFIG_SYSFS
static inline unsigned int get_netdev_rx_queue_index(
struct netdev_rx_queue *queue)

26
include/net/erspan.h
View File

@ -159,13 +159,13 @@ static inline void erspan_build_header(struct sk_buff *skb,
struct ethhdr *eth = (struct ethhdr *)skb->data;
enum erspan_encap_type enc_type;
struct erspan_base_hdr *ershdr;
struct erspan_metadata *ersmd;
struct qtag_prefix {
__be16 eth_type;
__be16 tci;
} *qp;
u16 vlan_tci = 0;
u8 tos;
__be32 *idx;
tos = is_ipv4 ? ip_hdr(skb)->tos :
(ipv6_hdr(skb)->priority << 4) +
@ -195,8 +195,8 @@ static inline void erspan_build_header(struct sk_buff *skb,
set_session_id(ershdr, id);
/* Build metadata */
ersmd = (struct erspan_metadata *)(ershdr + 1);
ersmd->u.index = htonl(index & INDEX_MASK);
idx = (__be32 *)(ershdr + 1);
*idx = htonl(index & INDEX_MASK);
}
/* ERSPAN GRA: timestamp granularity
@ -225,7 +225,7 @@ static inline void erspan_build_header_v2(struct sk_buff *skb,
{
struct ethhdr *eth = (struct ethhdr *)skb->data;
struct erspan_base_hdr *ershdr;
struct erspan_metadata *md;
struct erspan_md2 *md2;
struct qtag_prefix {
__be16 eth_type;
__be16 tci;
@ -261,15 +261,15 @@ static inline void erspan_build_header_v2(struct sk_buff *skb,
set_session_id(ershdr, id);
/* Build metadata */
md = (struct erspan_metadata *)(ershdr + 1);
md->u.md2.timestamp = erspan_get_timestamp();
md->u.md2.sgt = htons(sgt);
md->u.md2.p = 1;
md->u.md2.ft = 0;
md->u.md2.dir = direction;
md->u.md2.gra = gra;
md->u.md2.o = 0;
set_hwid(&md->u.md2, hwid);
md2 = (struct erspan_md2 *)(ershdr + 1);
md2->timestamp = erspan_get_timestamp();
md2->sgt = htons(sgt);
md2->p = 1;
md2->ft = 0;
md2->dir = direction;
md2->gra = gra;
md2->o = 0;
set_hwid(md2, hwid);
}
#endif

30
kernel/bpf/core.c
View File

@ -1576,25 +1576,41 @@ int bpf_prog_array_copy_to_user(struct bpf_prog_array __rcu *progs,
__u32 __user *prog_ids, u32 cnt)
{
struct bpf_prog **prog;
u32 i = 0, id;
unsigned long err = 0;
u32 i = 0, *ids;
bool nospc;
/* users of this function are doing:
* cnt = bpf_prog_array_length();
* if (cnt > 0)
* bpf_prog_array_copy_to_user(..., cnt);
* so below kcalloc doesn't need extra cnt > 0 check, but
* bpf_prog_array_length() releases rcu lock and
* prog array could have been swapped with empty or larger array,
* so always copy 'cnt' prog_ids to the user.
* In a rare race the user will see zero prog_ids
*/
ids = kcalloc(cnt, sizeof(u32), GFP_USER);
if (!ids)
return -ENOMEM;
rcu_read_lock();
prog = rcu_dereference(progs)->progs;
for (; *prog; prog++) {
if (*prog == &dummy_bpf_prog.prog)
continue;
id = (*prog)->aux->id;
if (copy_to_user(prog_ids + i, &id, sizeof(id))) {
rcu_read_unlock();
return -EFAULT;
}
ids[i] = (*prog)->aux->id;
if (++i == cnt) {
prog++;
break;
}
}
nospc = !!(*prog);
rcu_read_unlock();
if (*prog)
err = copy_to_user(prog_ids, ids, cnt * sizeof(u32));
kfree(ids);
if (err)
return -EFAULT;
if (nospc)
return -ENOSPC;
return 0;
}

4
net/bpf/test_run.c
View File

@ -151,6 +151,7 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr,
{
u32 size = kattr->test.data_size_in;
u32 repeat = kattr->test.repeat;
struct netdev_rx_queue *rxqueue;
struct xdp_buff xdp = {};
u32 retval, duration;
void *data;
@ -165,6 +166,9 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr,
xdp.data_meta = xdp.data;
xdp.data_end = xdp.data + size;
rxqueue = __netif_get_rx_queue(current->nsproxy->net_ns->loopback_dev, 0);
xdp.rxq = &rxqueue->xdp_rxq;
retval = bpf_test_run(prog, &xdp, repeat, &duration);
if (xdp.data != data + XDP_PACKET_HEADROOM + NET_IP_ALIGN)
size = xdp.data_end - xdp.data;

14
net/ipv4/ip_gre.c
View File

@ -261,6 +261,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
struct ip_tunnel_net *itn;
struct ip_tunnel *tunnel;
const struct iphdr *iph;
struct erspan_md2 *md2;
int ver;
int len;
@ -313,21 +314,14 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
return PACKET_REJECT;
md = ip_tunnel_info_opts(&tun_dst->u.tun_info);
memcpy(md, pkt_md, sizeof(*md));
md->version = ver;
md2 = &md->u.md2;
memcpy(md2, pkt_md, ver == 1 ? ERSPAN_V1_MDSIZE :
ERSPAN_V2_MDSIZE);
info = &tun_dst->u.tun_info;
info->key.tun_flags |= TUNNEL_ERSPAN_OPT;
info->options_len = sizeof(*md);
} else {
tunnel->erspan_ver = ver;
if (ver == 1) {
tunnel->index = ntohl(pkt_md->u.index);
} else {
tunnel->dir = pkt_md->u.md2.dir;
tunnel->hwid = get_hwid(&pkt_md->u.md2);
}
}
skb_reset_mac_header(skb);

15
net/ipv6/ip6_gre.c
View File

@ -505,6 +505,7 @@ static int ip6erspan_rcv(struct sk_buff *skb, int gre_hdr_len,
struct erspan_base_hdr *ershdr;
struct erspan_metadata *pkt_md;
const struct ipv6hdr *ipv6h;
struct erspan_md2 *md2;
struct ip6_tnl *tunnel;
u8 ver;
@ -551,24 +552,16 @@ static int ip6erspan_rcv(struct sk_buff *skb, int gre_hdr_len,
info = &tun_dst->u.tun_info;
md = ip_tunnel_info_opts(info);
memcpy(md, pkt_md, sizeof(*md));
md->version = ver;
md2 = &md->u.md2;
memcpy(md2, pkt_md, ver == 1 ? ERSPAN_V1_MDSIZE :
ERSPAN_V2_MDSIZE);
info->key.tun_flags |= TUNNEL_ERSPAN_OPT;
info->options_len = sizeof(*md);
ip6_tnl_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error);
} else {
tunnel->parms.erspan_ver = ver;
if (ver == 1) {
tunnel->parms.index = ntohl(pkt_md->u.index);
} else {
tunnel->parms.dir = pkt_md->u.md2.dir;
tunnel->parms.hwid = get_hwid(&pkt_md->u.md2);
}
ip6_tnl_rcv(tunnel, skb, tpi, NULL, log_ecn_error);
}

3
net/rds/ib.c
View File

@ -345,7 +345,8 @@ static int rds_ib_laddr_check(struct net *net, __be32 addr)
/* Create a CMA ID and try to bind it. This catches both
* IB and iWARP capable NICs.
*/
cm_id = rdma_create_id(&init_net, NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
cm_id = rdma_create_id(&init_net, rds_rdma_cm_event_handler,
NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);

21
net/sched/cls_u32.c
View File

@ -398,10 +398,12 @@ static int u32_init(struct tcf_proto *tp)
static int u32_destroy_key(struct tcf_proto *tp, struct tc_u_knode *n,
bool free_pf)
{
struct tc_u_hnode *ht = rtnl_dereference(n->ht_down);
tcf_exts_destroy(&n->exts);
tcf_exts_put_net(&n->exts);
if (n->ht_down)
n->ht_down->refcnt--;
if (ht && --ht->refcnt == 0)
kfree(ht);
#ifdef CONFIG_CLS_U32_PERF
if (free_pf)
free_percpu(n->pf);
@ -659,16 +661,15 @@ static void u32_destroy(struct tcf_proto *tp, struct netlink_ext_ack *extack)
hlist_del(&tp_c->hnode);
for (ht = rtnl_dereference(tp_c->hlist);
ht;
ht = rtnl_dereference(ht->next)) {
ht->refcnt--;
u32_clear_hnode(tp, ht, extack);
}
while ((ht = rtnl_dereference(tp_c->hlist)) != NULL) {
u32_clear_hnode(tp, ht, extack);
RCU_INIT_POINTER(tp_c->hlist, ht->next);
kfree_rcu(ht, rcu);
/* u32_destroy_key() will later free ht for us, if it's
* still referenced by some knode
*/
if (--ht->refcnt == 0)
kfree_rcu(ht, rcu);
}
idr_destroy(&tp_c->handle_idr);

10
net/sctp/ipv6.c
View File

@ -326,8 +326,10 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
final_p = fl6_update_dst(fl6, rcu_dereference(np->opt), &final);
bdst = ip6_dst_lookup_flow(sk, fl6, final_p);
if (!IS_ERR(bdst) &&
ipv6_chk_addr(dev_net(bdst->dev),
if (IS_ERR(bdst))
continue;
if (ipv6_chk_addr(dev_net(bdst->dev),
&laddr->a.v6.sin6_addr, bdst->dev, 1)) {
if (!IS_ERR_OR_NULL(dst))
dst_release(dst);
@ -336,8 +338,10 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
}
bmatchlen = sctp_v6_addr_match_len(daddr, &laddr->a);
if (matchlen > bmatchlen)
if (matchlen > bmatchlen) {
dst_release(bdst);
continue;
}
if (!IS_ERR_OR_NULL(dst))
dst_release(dst);

10
net/sctp/protocol.c
View File

@ -514,22 +514,20 @@ static void sctp_v4_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
if (IS_ERR(rt))
continue;
if (!dst)
dst = &rt->dst;
/* Ensure the src address belongs to the output
* interface.
*/
odev = __ip_dev_find(sock_net(sk), laddr->a.v4.sin_addr.s_addr,
false);
if (!odev || odev->ifindex != fl4->flowi4_oif) {
if (&rt->dst != dst)
if (!dst)
dst = &rt->dst;
else
dst_release(&rt->dst);
continue;
}
if (dst != &rt->dst)
dst_release(dst);
dst_release(dst);
dst = &rt->dst;
break;
}

2
samples/bpf/Makefile
View File

@ -45,7 +45,7 @@ hostprogs-y += xdp_rxq_info
hostprogs-y += syscall_tp
# Libbpf dependencies
LIBBPF := ../../tools/lib/bpf/bpf.o
LIBBPF := ../../tools/lib/bpf/bpf.o ../../tools/lib/bpf/nlattr.o
CGROUP_HELPERS := ../../tools/testing/selftests/bpf/cgroup_helpers.o
test_lru_dist-objs := test_lru_dist.o $(LIBBPF)

102
samples/bpf/bpf_load.c
View File

@ -695,105 +695,3 @@ struct ksym *ksym_search(long key)
return &syms[0];
}
int set_link_xdp_fd(int ifindex, int fd, __u32 flags)
{
struct sockaddr_nl sa;
int sock, seq = 0, len, ret = -1;
char buf[4096];
struct nlattr *nla, *nla_xdp;
struct {
struct nlmsghdr nh;
struct ifinfomsg ifinfo;
char attrbuf[64];
} req;
struct nlmsghdr *nh;
struct nlmsgerr *err;
memset(&sa, 0, sizeof(sa));
sa.nl_family = AF_NETLINK;
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock < 0) {
printf("open netlink socket: %s\n", strerror(errno));
return -1;
}
if (bind(sock, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
printf("bind to netlink: %s\n", strerror(errno));
goto cleanup;
}
memset(&req, 0, sizeof(req));
req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
req.nh.nlmsg_type = RTM_SETLINK;
req.nh.nlmsg_pid = 0;
req.nh.nlmsg_seq = ++seq;
req.ifinfo.ifi_family = AF_UNSPEC;
req.ifinfo.ifi_index = ifindex;
/* started nested attribute for XDP */
nla = (struct nlattr *)(((char *)&req)
+ NLMSG_ALIGN(req.nh.nlmsg_len));
nla->nla_type = NLA_F_NESTED | 43/*IFLA_XDP*/;
nla->nla_len = NLA_HDRLEN;
/* add XDP fd */
nla_xdp = (struct nlattr *)((char *)nla + nla->nla_len);
nla_xdp->nla_type = 1/*IFLA_XDP_FD*/;
nla_xdp->nla_len = NLA_HDRLEN + sizeof(int);
memcpy((char *)nla_xdp + NLA_HDRLEN, &fd, sizeof(fd));
nla->nla_len += nla_xdp->nla_len;
/* if user passed in any flags, add those too */
if (flags) {
nla_xdp = (struct nlattr *)((char *)nla + nla->nla_len);
nla_xdp->nla_type = 3/*IFLA_XDP_FLAGS*/;
nla_xdp->nla_len = NLA_HDRLEN + sizeof(flags);
memcpy((char *)nla_xdp + NLA_HDRLEN, &flags, sizeof(flags));
nla->nla_len += nla_xdp->nla_len;
}
req.nh.nlmsg_len += NLA_ALIGN(nla->nla_len);
if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
printf("send to netlink: %s\n", strerror(errno));
goto cleanup;
}
len = recv(sock, buf, sizeof(buf), 0);
if (len < 0) {
printf("recv from netlink: %s\n", strerror(errno));
goto cleanup;
}
for (nh = (struct nlmsghdr *)buf; NLMSG_OK(nh, len);
nh = NLMSG_NEXT(nh, len)) {
if (nh->nlmsg_pid != getpid()) {
printf("Wrong pid %d, expected %d\n",
nh->nlmsg_pid, getpid());
goto cleanup;
}
if (nh->nlmsg_seq != seq) {
printf("Wrong seq %d, expected %d\n",
nh->nlmsg_seq, seq);
goto cleanup;
}
switch (nh->nlmsg_type) {
case NLMSG_ERROR:
err = (struct nlmsgerr *)NLMSG_DATA(nh);
if (!err->error)
continue;
printf("nlmsg error %s\n", strerror(-err->error));
goto cleanup;
case NLMSG_DONE:
break;
}
}
ret = 0;
cleanup:
close(sock);
return ret;
}

2
samples/bpf/bpf_load.h
View File

@ -61,5 +61,5 @@ struct ksym {
int load_kallsyms(void);
struct ksym *ksym_search(long key);
int set_link_xdp_fd(int ifindex, int fd, __u32 flags);
int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags);
#endif

41
samples/bpf/tcbpf2_kern.c
View File

@ -15,6 +15,7 @@
#include <uapi/linux/tcp.h>
#include <uapi/linux/filter.h>
#include <uapi/linux/pkt_cls.h>
#include <uapi/linux/erspan.h>
#include <net/ipv6.h>
#include "bpf_helpers.h"
#include "bpf_endian.h"
@ -35,24 +36,10 @@ struct geneve_opt {
u8 opt_data[8]; /* hard-coded to 8 byte */
};
struct erspan_md2 {
__be32 timestamp;
__be16 sgt;
__be16 flags;
};
struct vxlan_metadata {
u32 gbp;
};
struct erspan_metadata {
union {
__be32 index;
struct erspan_md2 md2;
} u;
int version;
};
SEC("gre_set_tunnel")
int _gre_set_tunnel(struct __sk_buff *skb)
{
@ -156,13 +143,15 @@ int _erspan_set_tunnel(struct __sk_buff *skb)
__builtin_memset(&md, 0, sizeof(md));
#ifdef ERSPAN_V1
md.version = 1;
md.u.index = htonl(123);
md.u.index = bpf_htonl(123);
#else
u8 direction = 1;
u16 hwid = 7;
u8 hwid = 7;
md.version = 2;
md.u.md2.flags = htons((direction << 3) | (hwid << 4));
md.u.md2.dir = direction;
md.u.md2.hwid = hwid & 0xf;
md.u.md2.hwid_upper = (hwid >> 4) & 0x3;
#endif
ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
@ -207,9 +196,9 @@ int _erspan_get_tunnel(struct __sk_buff *skb)
char fmt2[] = "\tdirection %d hwid %x timestamp %u\n";
bpf_trace_printk(fmt2, sizeof(fmt2),
(ntohs(md.u.md2.flags) >> 3) & 0x1,
(ntohs(md.u.md2.flags) >> 4) & 0x3f,
bpf_ntohl(md.u.md2.timestamp));
md.u.md2.dir,
(md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
bpf_ntohl(md.u.md2.timestamp));
#endif
return TC_ACT_OK;
@ -242,10 +231,12 @@ int _ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
md.version = 1;
#else
u8 direction = 0;
u16 hwid = 17;
u8 hwid = 17;
md.version = 2;
md.u.md2.flags = htons((direction << 3) | (hwid << 4));
md.u.md2.dir = direction;
md.u.md2.hwid = hwid & 0xf;
md.u.md2.hwid_upper = (hwid >> 4) & 0x3;
#endif
ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
@ -290,9 +281,9 @@ int _ip4ip6erspan_get_tunnel(struct __sk_buff *skb)
char fmt2[] = "\tdirection %d hwid %x timestamp %u\n";
bpf_trace_printk(fmt2, sizeof(fmt2),
(ntohs(md.u.md2.flags) >> 3) & 0x1,
(ntohs(md.u.md2.flags) >> 4) & 0x3f,
bpf_ntohl(md.u.md2.timestamp));
md.u.md2.dir,
(md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
bpf_ntohl(md.u.md2.timestamp));
#endif
return TC_ACT_OK;

4
samples/bpf/test_tunnel_bpf.sh
View File

@ -68,7 +68,7 @@ function add_erspan_tunnel {
ip netns exec at_ns0 \
ip link add dev $DEV_NS type $TYPE seq key 2 \
local 172.16.1.100 remote 172.16.1.200 \
erspan_ver 2 erspan_dir 1 erspan_hwid 3
erspan_ver 2 erspan_dir egress erspan_hwid 3
fi
ip netns exec at_ns0 ip link set dev $DEV_NS up
ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
@ -97,7 +97,7 @@ function add_ip6erspan_tunnel {
ip netns exec at_ns0 \
ip link add dev $DEV_NS type $TYPE seq key 2 \
local ::11 remote ::22 \
erspan_ver 2 erspan_dir 1 erspan_hwid 7
erspan_ver 2 erspan_dir egress erspan_hwid 7
fi
ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
ip netns exec at_ns0 ip link set dev $DEV_NS up

4
samples/bpf/xdp1_user.c
View File

@ -25,7 +25,7 @@ static __u32 xdp_flags;
static void int_exit(int sig)
{
set_link_xdp_fd(ifindex, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
exit(0);
}
@ -116,7 +116,7 @@ int main(int argc, char **argv)
signal(SIGINT, int_exit);
signal(SIGTERM, int_exit);
if (set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
printf("link set xdp fd failed\n");
return 1;
}

6
samples/bpf/xdp_redirect_cpu_user.c
View File

@ -26,7 +26,7 @@ static const char *__doc__ =
/* Wanted to get rid of bpf_load.h and fake-"libbpf.h" (and instead
* use bpf/libbpf.h), but cannot as (currently) needed for XDP
* attaching to a device via set_link_xdp_fd()
* attaching to a device via bpf_set_link_xdp_fd()
*/
#include "libbpf.h"
#include "bpf_load.h"
@ -67,7 +67,7 @@ static void int_exit(int sig)
"Interrupted: Removing XDP program on ifindex:%d device:%s\n",
ifindex, ifname);
if (ifindex > -1)
set_link_xdp_fd(ifindex, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
exit(EXIT_OK);
}
@ -682,7 +682,7 @@ int main(int argc, char **argv)
/* Remove XDP program when program is interrupted */
signal(SIGINT, int_exit);
if (set_link_xdp_fd(ifindex, prog_fd[prog_num], xdp_flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex, prog_fd[prog_num], xdp_flags) < 0) {
fprintf(stderr, "link set xdp fd failed\n");
return EXIT_FAIL_XDP;
}

8
samples/bpf/xdp_redirect_map_user.c
View File

@ -34,9 +34,9 @@ static __u32 xdp_flags;
static void int_exit(int sig)
{
set_link_xdp_fd(ifindex_in, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex_in, -1, xdp_flags);
if (ifindex_out_xdp_dummy_attached)
set_link_xdp_fd(ifindex_out, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex_out, -1, xdp_flags);
exit(0);
}
@ -120,13 +120,13 @@ int main(int argc, char **argv)
return 1;
}
if (set_link_xdp_fd(ifindex_in, prog_fd[0], xdp_flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex_in, prog_fd[0], xdp_flags) < 0) {
printf("ERROR: link set xdp fd failed on %d\n", ifindex_in);
return 1;
}
/* Loading dummy XDP prog on out-device */
if (set_link_xdp_fd(ifindex_out, prog_fd[1],
if (bpf_set_link_xdp_fd(ifindex_out, prog_fd[1],
(xdp_flags | XDP_FLAGS_UPDATE_IF_NOEXIST)) < 0) {
printf("WARN: link set xdp fd failed on %d\n", ifindex_out);
ifindex_out_xdp_dummy_attached = false;

8
samples/bpf/xdp_redirect_user.c
View File

@ -33,9 +33,9 @@ static __u32 xdp_flags;
static void int_exit(int sig)
{
set_link_xdp_fd(ifindex_in, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex_in, -1, xdp_flags);
if (ifindex_out_xdp_dummy_attached)
set_link_xdp_fd(ifindex_out, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex_out, -1, xdp_flags);
exit(0);
}
@ -114,13 +114,13 @@ int main(int argc, char **argv)
return 1;
}
if (set_link_xdp_fd(ifindex_in, prog_fd[0], xdp_flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex_in, prog_fd[0], xdp_flags) < 0) {
printf("ERROR: link set xdp fd failed on %d\n", ifindex_in);
return 1;
}
/* Loading dummy XDP prog on out-device */
if (set_link_xdp_fd(ifindex_out, prog_fd[1],
if (bpf_set_link_xdp_fd(ifindex_out, prog_fd[1],
(xdp_flags | XDP_FLAGS_UPDATE_IF_NOEXIST)) < 0) {
printf("WARN: link set xdp fd failed on %d\n", ifindex_out);
ifindex_out_xdp_dummy_attached = false;

10
samples/bpf/xdp_router_ipv4_user.c
View File

@ -37,7 +37,7 @@ static void int_exit(int sig)
int i = 0;
for (i = 0; i < total_ifindex; i++)
set_link_xdp_fd(ifindex_list[i], -1, flags);
bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
exit(0);
}
@ -49,7 +49,7 @@ static void close_and_exit(int sig)
close(sock_arp);
for (i = 0; i < total_ifindex; i++)
set_link_xdp_fd(ifindex_list[i], -1, flags);
bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
exit(0);
}
@ -183,7 +183,7 @@ static void read_route(struct nlmsghdr *nh, int nll)
int i = 0;
for (i = 0; i < total_ifindex; i++)
set_link_xdp_fd(ifindex_list[i], -1, flags);
bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
exit(0);
}
assert(bpf_map_update_elem(map_fd[4], &route.iface, &route.iface, 0) == 0);
@ -633,12 +633,12 @@ int main(int ac, char **argv)
}
}
for (i = 0; i < total_ifindex; i++) {
if (set_link_xdp_fd(ifindex_list[i], prog_fd[0], flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex_list[i], prog_fd[0], flags) < 0) {
printf("link set xdp fd failed\n");
int recovery_index = i;
for (i = 0; i < recovery_index; i++)
set_link_xdp_fd(ifindex_list[i], -1, flags);
bpf_set_link_xdp_fd(ifindex_list[i], -1, flags);
return 1;
}

4
samples/bpf/xdp_rxq_info_user.c
View File

@ -56,7 +56,7 @@ static void int_exit(int sig)
"Interrupted: Removing XDP program on ifindex:%d device:%s\n",
ifindex, ifname);
if (ifindex > -1)
set_link_xdp_fd(ifindex, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
exit(EXIT_OK);
}
@ -521,7 +521,7 @@ int main(int argc, char **argv)
/* Remove XDP program when program is interrupted */
signal(SIGINT, int_exit);
if (set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
fprintf(stderr, "link set xdp fd failed\n");
return EXIT_FAIL_XDP;
}

6
samples/bpf/xdp_tx_iptunnel_user.c
View File

@ -30,7 +30,7 @@ static __u32 xdp_flags = 0;
static void int_exit(int sig)
{
if (ifindex > -1)
set_link_xdp_fd(ifindex, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
exit(0);
}
@ -254,14 +254,14 @@ int main(int argc, char **argv)
}
}
if (set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
if (bpf_set_link_xdp_fd(ifindex, prog_fd[0], xdp_flags) < 0) {
printf("link set xdp fd failed\n");
return 1;
}
poll_stats(kill_after_s);
set_link_xdp_fd(ifindex, -1, xdp_flags);
bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
return 0;
}

943
tools/include/uapi/linux/if_link.h Normal file
View File

@ -0,0 +1,943 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_IF_LINK_H
#define _UAPI_LINUX_IF_LINK_H
#include <linux/types.h>
#include <linux/netlink.h>
/* This struct should be in sync with struct rtnl_link_stats64 */
struct rtnl_link_stats {
__u32 rx_packets; /* total packets received */
__u32 tx_packets; /* total packets transmitted */
__u32 rx_bytes; /* total bytes received */
__u32 tx_bytes; /* total bytes transmitted */
__u32 rx_errors; /* bad packets received */
__u32 tx_errors; /* packet transmit problems */
__u32 rx_dropped; /* no space in linux buffers */
__u32 tx_dropped; /* no space available in linux */
__u32 multicast; /* multicast packets received */
__u32 collisions;
/* detailed rx_errors: */
__u32 rx_length_errors;
__u32 rx_over_errors; /* receiver ring buff overflow */
__u32 rx_crc_errors; /* recved pkt with crc error */
__u32 rx_frame_errors; /* recv'd frame alignment error */
__u32 rx_fifo_errors; /* recv'r fifo overrun */
__u32 rx_missed_errors; /* receiver missed packet */
/* detailed tx_errors */
__u32 tx_aborted_errors;
__u32 tx_carrier_errors;
__u32 tx_fifo_errors;
__u32 tx_heartbeat_errors;
__u32 tx_window_errors;
/* for cslip etc */
__u32 rx_compressed;
__u32 tx_compressed;
__u32 rx_nohandler; /* dropped, no handler found */
};
/* The main device statistics structure */
struct rtnl_link_stats64 {
__u64 rx_packets; /* total packets received */
__u64 tx_packets; /* total packets transmitted */
__u64 rx_bytes; /* total bytes received */
__u64 tx_bytes; /* total bytes transmitted */
__u64 rx_errors; /* bad packets received */
__u64 tx_errors; /* packet transmit problems */
__u64 rx_dropped; /* no space in linux buffers */
__u64 tx_dropped; /* no space available in linux */
__u64 multicast; /* multicast packets received */
__u64 collisions;
/* detailed rx_errors: */
__u64 rx_length_errors;
__u64 rx_over_errors; /* receiver ring buff overflow */
__u64 rx_crc_errors; /* recved pkt with crc error */
__u64 rx_frame_errors; /* recv'd frame alignment error */
__u64 rx_fifo_errors; /* recv'r fifo overrun */
__u64 rx_missed_errors; /* receiver missed packet */
/* detailed tx_errors */
__u64 tx_aborted_errors;
__u64 tx_carrier_errors;
__u64 tx_fifo_errors;
__u64 tx_heartbeat_errors;
__u64 tx_window_errors;
/* for cslip etc */
__u64 rx_compressed;
__u64 tx_compressed;
__u64 rx_nohandler; /* dropped, no handler found */
};
/* The struct should be in sync with struct ifmap */
struct rtnl_link_ifmap {
__u64 mem_start;
__u64 mem_end;
__u64 base_addr;
__u16 irq;
__u8 dma;
__u8 port;
};
/*
* IFLA_AF_SPEC
* Contains nested attributes for address family specific attributes.
* Each address family may create a attribute with the address family
* number as type and create its own attribute structure in it.
*
* Example:
* [IFLA_AF_SPEC] = {
* [AF_INET] = {
* [IFLA_INET_CONF] = ...,
* },
* [AF_INET6] = {
* [IFLA_INET6_FLAGS] = ...,
* [IFLA_INET6_CONF] = ...,
* }
* }
*/
enum {
IFLA_UNSPEC,
IFLA_ADDRESS,
IFLA_BROADCAST,
IFLA_IFNAME,
IFLA_MTU,
IFLA_LINK,
IFLA_QDISC,
IFLA_STATS,
IFLA_COST,
#define IFLA_COST IFLA_COST
IFLA_PRIORITY,
#define IFLA_PRIORITY IFLA_PRIORITY
IFLA_MASTER,
#define IFLA_MASTER IFLA_MASTER
IFLA_WIRELESS, /* Wireless Extension event - see wireless.h */
#define IFLA_WIRELESS IFLA_WIRELESS
IFLA_PROTINFO, /* Protocol specific information for a link */
#define IFLA_PROTINFO IFLA_PROTINFO
IFLA_TXQLEN,
#define IFLA_TXQLEN IFLA_TXQLEN
IFLA_MAP,
#define IFLA_MAP IFLA_MAP
IFLA_WEIGHT,
#define IFLA_WEIGHT IFLA_WEIGHT
IFLA_OPERSTATE,
IFLA_LINKMODE,
IFLA_LINKINFO,
#define IFLA_LINKINFO IFLA_LINKINFO
IFLA_NET_NS_PID,
IFLA_IFALIAS,
IFLA_NUM_VF, /* Number of VFs if device is SR-IOV PF */
IFLA_VFINFO_LIST,
IFLA_STATS64,
IFLA_VF_PORTS,
IFLA_PORT_SELF,
IFLA_AF_SPEC,
IFLA_GROUP, /* Group the device belongs to */
IFLA_NET_NS_FD,
IFLA_EXT_MASK, /* Extended info mask, VFs, etc */
IFLA_PROMISCUITY, /* Promiscuity count: > 0 means acts PROMISC */
#define IFLA_PROMISCUITY IFLA_PROMISCUITY
IFLA_NUM_TX_QUEUES,
IFLA_NUM_RX_QUEUES,
IFLA_CARRIER,
IFLA_PHYS_PORT_ID,
IFLA_CARRIER_CHANGES,
IFLA_PHYS_SWITCH_ID,
IFLA_LINK_NETNSID,
IFLA_PHYS_PORT_NAME,
IFLA_PROTO_DOWN,
IFLA_GSO_MAX_SEGS,
IFLA_GSO_MAX_SIZE,
IFLA_PAD,
IFLA_XDP,
IFLA_EVENT,
IFLA_NEW_NETNSID,
IFLA_IF_NETNSID,
IFLA_CARRIER_UP_COUNT,
IFLA_CARRIER_DOWN_COUNT,
__IFLA_MAX
};
#define IFLA_MAX (__IFLA_MAX - 1)
/* backwards compatibility for userspace */
#ifndef __KERNEL__
#define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
#endif
enum {
IFLA_INET_UNSPEC,
IFLA_INET_CONF,
__IFLA_INET_MAX,
};
#define IFLA_INET_MAX (__IFLA_INET_MAX - 1)
/* ifi_flags.
IFF_* flags.
The only change is:
IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are
more not changeable by user. They describe link media
characteristics and set by device driver.
Comments:
- Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid
- If neither of these three flags are set;
the interface is NBMA.
- IFF_MULTICAST does not mean anything special:
multicasts can be used on all not-NBMA links.
IFF_MULTICAST means that this media uses special encapsulation
for multicast frames. Apparently, all IFF_POINTOPOINT and
IFF_BROADCAST devices are able to use multicasts too.
*/
/* IFLA_LINK.
For usual devices it is equal ifi_index.
If it is a "virtual interface" (f.e. tunnel), ifi_link
can point to real physical interface (f.e. for bandwidth calculations),
or maybe 0, what means, that real media is unknown (usual
for IPIP tunnels, when route to endpoint is allowed to change)
*/
/* Subtype attributes for IFLA_PROTINFO */
enum {
IFLA_INET6_UNSPEC,
IFLA_INET6_FLAGS, /* link flags */
IFLA_INET6_CONF, /* sysctl parameters */
IFLA_INET6_STATS, /* statistics */
IFLA_INET6_MCAST, /* MC things. What of them? */
IFLA_INET6_CACHEINFO, /* time values and max reasm size */
IFLA_INET6_ICMP6STATS, /* statistics (icmpv6) */
IFLA_INET6_TOKEN, /* device token */
IFLA_INET6_ADDR_GEN_MODE, /* implicit address generator mode */
__IFLA_INET6_MAX
};
#define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1)
enum in6_addr_gen_mode {
IN6_ADDR_GEN_MODE_EUI64,
IN6_ADDR_GEN_MODE_NONE,
IN6_ADDR_GEN_MODE_STABLE_PRIVACY,
IN6_ADDR_GEN_MODE_RANDOM,
};
/* Bridge section */
enum {
IFLA_BR_UNSPEC,
IFLA_BR_FORWARD_DELAY,
IFLA_BR_HELLO_TIME,
IFLA_BR_MAX_AGE,
IFLA_BR_AGEING_TIME,
IFLA_BR_STP_STATE,
IFLA_BR_PRIORITY,
IFLA_BR_VLAN_FILTERING,
IFLA_BR_VLAN_PROTOCOL,
IFLA_BR_GROUP_FWD_MASK,
IFLA_BR_ROOT_ID,
IFLA_BR_BRIDGE_ID,
IFLA_BR_ROOT_PORT,
IFLA_BR_ROOT_PATH_COST,
IFLA_BR_TOPOLOGY_CHANGE,
IFLA_BR_TOPOLOGY_CHANGE_DETECTED,
IFLA_BR_HELLO_TIMER,
IFLA_BR_TCN_TIMER,
IFLA_BR_TOPOLOGY_CHANGE_TIMER,
IFLA_BR_GC_TIMER,
IFLA_BR_GROUP_ADDR,
IFLA_BR_FDB_FLUSH,
IFLA_BR_MCAST_ROUTER,
IFLA_BR_MCAST_SNOOPING,
IFLA_BR_MCAST_QUERY_USE_IFADDR,
IFLA_BR_MCAST_QUERIER,
IFLA_BR_MCAST_HASH_ELASTICITY,
IFLA_BR_MCAST_HASH_MAX,
IFLA_BR_MCAST_LAST_MEMBER_CNT,
IFLA_BR_MCAST_STARTUP_QUERY_CNT,
IFLA_BR_MCAST_LAST_MEMBER_INTVL,
IFLA_BR_MCAST_MEMBERSHIP_INTVL,
IFLA_BR_MCAST_QUERIER_INTVL,
IFLA_BR_MCAST_QUERY_INTVL,
IFLA_BR_MCAST_QUERY_RESPONSE_INTVL,
IFLA_BR_MCAST_STARTUP_QUERY_INTVL,
IFLA_BR_NF_CALL_IPTABLES,
IFLA_BR_NF_CALL_IP6TABLES,
IFLA_BR_NF_CALL_ARPTABLES,
IFLA_BR_VLAN_DEFAULT_PVID,
IFLA_BR_PAD,
IFLA_BR_VLAN_STATS_ENABLED,
IFLA_BR_MCAST_STATS_ENABLED,
IFLA_BR_MCAST_IGMP_VERSION,
IFLA_BR_MCAST_MLD_VERSION,
__IFLA_BR_MAX,
};
#define IFLA_BR_MAX (__IFLA_BR_MAX - 1)
struct ifla_bridge_id {
__u8 prio[2];
__u8 addr[6]; /* ETH_ALEN */
};
enum {
BRIDGE_MODE_UNSPEC,
BRIDGE_MODE_HAIRPIN,
};
enum {
IFLA_BRPORT_UNSPEC,
IFLA_BRPORT_STATE, /* Spanning tree state */
IFLA_BRPORT_PRIORITY, /* " priority */
IFLA_BRPORT_COST, /* " cost */
IFLA_BRPORT_MODE, /* mode (hairpin) */
IFLA_BRPORT_GUARD, /* bpdu guard */
IFLA_BRPORT_PROTECT, /* root port protection */
IFLA_BRPORT_FAST_LEAVE, /* multicast fast leave */
IFLA_BRPORT_LEARNING, /* mac learning */
IFLA_BRPORT_UNICAST_FLOOD, /* flood unicast traffic */
IFLA_BRPORT_PROXYARP, /* proxy ARP */
IFLA_BRPORT_LEARNING_SYNC, /* mac learning sync from device */
IFLA_BRPORT_PROXYARP_WIFI, /* proxy ARP for Wi-Fi */
IFLA_BRPORT_ROOT_ID, /* designated root */
IFLA_BRPORT_BRIDGE_ID, /* designated bridge */
IFLA_BRPORT_DESIGNATED_PORT,
IFLA_BRPORT_DESIGNATED_COST,
IFLA_BRPORT_ID,
IFLA_BRPORT_NO,
IFLA_BRPORT_TOPOLOGY_CHANGE_ACK,
IFLA_BRPORT_CONFIG_PENDING,
IFLA_BRPORT_MESSAGE_AGE_TIMER,
IFLA_BRPORT_FORWARD_DELAY_TIMER,
IFLA_BRPORT_HOLD_TIMER,
IFLA_BRPORT_FLUSH,
IFLA_BRPORT_MULTICAST_ROUTER,
IFLA_BRPORT_PAD,
IFLA_BRPORT_MCAST_FLOOD,
IFLA_BRPORT_MCAST_TO_UCAST,
IFLA_BRPORT_VLAN_TUNNEL,
IFLA_BRPORT_BCAST_FLOOD,
IFLA_BRPORT_GROUP_FWD_MASK,
IFLA_BRPORT_NEIGH_SUPPRESS,
__IFLA_BRPORT_MAX
};
#define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
struct ifla_cacheinfo {
__u32 max_reasm_len;
__u32 tstamp; /* ipv6InterfaceTable updated timestamp */
__u32 reachable_time;
__u32 retrans_time;
};
enum {
IFLA_INFO_UNSPEC,
IFLA_INFO_KIND,
IFLA_INFO_DATA,
IFLA_INFO_XSTATS,
IFLA_INFO_SLAVE_KIND,
IFLA_INFO_SLAVE_DATA,
__IFLA_INFO_MAX,
};
#define IFLA_INFO_MAX (__IFLA_INFO_MAX - 1)
/* VLAN section */
enum {
IFLA_VLAN_UNSPEC,
IFLA_VLAN_ID,
IFLA_VLAN_FLAGS,
IFLA_VLAN_EGRESS_QOS,
IFLA_VLAN_INGRESS_QOS,
IFLA_VLAN_PROTOCOL,
__IFLA_VLAN_MAX,
};
#define IFLA_VLAN_MAX (__IFLA_VLAN_MAX - 1)
struct ifla_vlan_flags {
__u32 flags;
__u32 mask;
};
enum {
IFLA_VLAN_QOS_UNSPEC,
IFLA_VLAN_QOS_MAPPING,
__IFLA_VLAN_QOS_MAX
};
#define IFLA_VLAN_QOS_MAX (__IFLA_VLAN_QOS_MAX - 1)
struct ifla_vlan_qos_mapping {
__u32 from;
__u32 to;
};
/* MACVLAN section */
enum {
IFLA_MACVLAN_UNSPEC,
IFLA_MACVLAN_MODE,
IFLA_MACVLAN_FLAGS,
IFLA_MACVLAN_MACADDR_MODE,
IFLA_MACVLAN_MACADDR,
IFLA_MACVLAN_MACADDR_DATA,
IFLA_MACVLAN_MACADDR_COUNT,
__IFLA_MACVLAN_MAX,
};
#define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
enum macvlan_mode {
MACVLAN_MODE_PRIVATE = 1, /* don't talk to other macvlans */
MACVLAN_MODE_VEPA = 2, /* talk to other ports through ext bridge */
MACVLAN_MODE_BRIDGE = 4, /* talk to bridge ports directly */
MACVLAN_MODE_PASSTHRU = 8,/* take over the underlying device */
MACVLAN_MODE_SOURCE = 16,/* use source MAC address list to assign */
};
enum macvlan_macaddr_mode {
MACVLAN_MACADDR_ADD,
MACVLAN_MACADDR_DEL,
MACVLAN_MACADDR_FLUSH,
MACVLAN_MACADDR_SET,
};
#define MACVLAN_FLAG_NOPROMISC 1
/* VRF section */
enum {
IFLA_VRF_UNSPEC,
IFLA_VRF_TABLE,
__IFLA_VRF_MAX
};
#define IFLA_VRF_MAX (__IFLA_VRF_MAX - 1)
enum {
IFLA_VRF_PORT_UNSPEC,
IFLA_VRF_PORT_TABLE,
__IFLA_VRF_PORT_MAX
};
#define IFLA_VRF_PORT_MAX (__IFLA_VRF_PORT_MAX - 1)
/* MACSEC section */
enum {
IFLA_MACSEC_UNSPEC,
IFLA_MACSEC_SCI,
IFLA_MACSEC_PORT,
IFLA_MACSEC_ICV_LEN,
IFLA_MACSEC_CIPHER_SUITE,
IFLA_MACSEC_WINDOW,
IFLA_MACSEC_ENCODING_SA,
IFLA_MACSEC_ENCRYPT,
IFLA_MACSEC_PROTECT,
IFLA_MACSEC_INC_SCI,
IFLA_MACSEC_ES,
IFLA_MACSEC_SCB,
IFLA_MACSEC_REPLAY_PROTECT,
IFLA_MACSEC_VALIDATION,
IFLA_MACSEC_PAD,
__IFLA_MACSEC_MAX,
};
#define IFLA_MACSEC_MAX (__IFLA_MACSEC_MAX - 1)
enum macsec_validation_type {
MACSEC_VALIDATE_DISABLED = 0,
MACSEC_VALIDATE_CHECK = 1,
MACSEC_VALIDATE_STRICT = 2,
__MACSEC_VALIDATE_END,
MACSEC_VALIDATE_MAX = __MACSEC_VALIDATE_END - 1,
};
/* IPVLAN section */
enum {
IFLA_IPVLAN_UNSPEC,
IFLA_IPVLAN_MODE,
IFLA_IPVLAN_FLAGS,
__IFLA_IPVLAN_MAX
};
#define IFLA_IPVLAN_MAX (__IFLA_IPVLAN_MAX - 1)
enum ipvlan_mode {
IPVLAN_MODE_L2 = 0,
IPVLAN_MODE_L3,
IPVLAN_MODE_L3S,
IPVLAN_MODE_MAX
};
#define IPVLAN_F_PRIVATE 0x01
#define IPVLAN_F_VEPA 0x02
/* VXLAN section */
enum {
IFLA_VXLAN_UNSPEC,
IFLA_VXLAN_ID,
IFLA_VXLAN_GROUP, /* group or remote address */
IFLA_VXLAN_LINK,
IFLA_VXLAN_LOCAL,
IFLA_VXLAN_TTL,
IFLA_VXLAN_TOS,
IFLA_VXLAN_LEARNING,
IFLA_VXLAN_AGEING,
IFLA_VXLAN_LIMIT,
IFLA_VXLAN_PORT_RANGE, /* source port */
IFLA_VXLAN_PROXY,
IFLA_VXLAN_RSC,
IFLA_VXLAN_L2MISS,
IFLA_VXLAN_L3MISS,
IFLA_VXLAN_PORT, /* destination port */
IFLA_VXLAN_GROUP6,
IFLA_VXLAN_LOCAL6,
IFLA_VXLAN_UDP_CSUM,
IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
IFLA_VXLAN_REMCSUM_TX,
IFLA_VXLAN_REMCSUM_RX,
IFLA_VXLAN_GBP,
IFLA_VXLAN_REMCSUM_NOPARTIAL,
IFLA_VXLAN_COLLECT_METADATA,
IFLA_VXLAN_LABEL,
IFLA_VXLAN_GPE,
__IFLA_VXLAN_MAX
};
#define IFLA_VXLAN_MAX (__IFLA_VXLAN_MAX - 1)
struct ifla_vxlan_port_range {
__be16 low;
__be16 high;
};
/* GENEVE section */
enum {
IFLA_GENEVE_UNSPEC,
IFLA_GENEVE_ID,
IFLA_GENEVE_REMOTE,
IFLA_GENEVE_TTL,
IFLA_GENEVE_TOS,
IFLA_GENEVE_PORT, /* destination port */
IFLA_GENEVE_COLLECT_METADATA,
IFLA_GENEVE_REMOTE6,
IFLA_GENEVE_UDP_CSUM,
IFLA_GENEVE_UDP_ZERO_CSUM6_TX,
IFLA_GENEVE_UDP_ZERO_CSUM6_RX,
IFLA_GENEVE_LABEL,
__IFLA_GENEVE_MAX
};
#define IFLA_GENEVE_MAX (__IFLA_GENEVE_MAX - 1)
/* PPP section */
enum {
IFLA_PPP_UNSPEC,
IFLA_PPP_DEV_FD,
__IFLA_PPP_MAX
};
#define IFLA_PPP_MAX (__IFLA_PPP_MAX - 1)
/* GTP section */
enum ifla_gtp_role {
GTP_ROLE_GGSN = 0,
GTP_ROLE_SGSN,
};
enum {
IFLA_GTP_UNSPEC,
IFLA_GTP_FD0,
IFLA_GTP_FD1,
IFLA_GTP_PDP_HASHSIZE,
IFLA_GTP_ROLE,
__IFLA_GTP_MAX,
};
#define IFLA_GTP_MAX (__IFLA_GTP_MAX - 1)
/* Bonding section */
enum {
IFLA_BOND_UNSPEC,
IFLA_BOND_MODE,
IFLA_BOND_ACTIVE_SLAVE,
IFLA_BOND_MIIMON,
IFLA_BOND_UPDELAY,
IFLA_BOND_DOWNDELAY,
IFLA_BOND_USE_CARRIER,
IFLA_BOND_ARP_INTERVAL,
IFLA_BOND_ARP_IP_TARGET,
IFLA_BOND_ARP_VALIDATE,
IFLA_BOND_ARP_ALL_TARGETS,
IFLA_BOND_PRIMARY,
IFLA_BOND_PRIMARY_RESELECT,
IFLA_BOND_FAIL_OVER_MAC,
IFLA_BOND_XMIT_HASH_POLICY,
IFLA_BOND_RESEND_IGMP,
IFLA_BOND_NUM_PEER_NOTIF,
IFLA_BOND_ALL_SLAVES_ACTIVE,
IFLA_BOND_MIN_LINKS,
IFLA_BOND_LP_INTERVAL,
IFLA_BOND_PACKETS_PER_SLAVE,
IFLA_BOND_AD_LACP_RATE,
IFLA_BOND_AD_SELECT,
IFLA_BOND_AD_INFO,
IFLA_BOND_AD_ACTOR_SYS_PRIO,
IFLA_BOND_AD_USER_PORT_KEY,
IFLA_BOND_AD_ACTOR_SYSTEM,
IFLA_BOND_TLB_DYNAMIC_LB,
__IFLA_BOND_MAX,
};
#define IFLA_BOND_MAX (__IFLA_BOND_MAX - 1)
enum {
IFLA_BOND_AD_INFO_UNSPEC,
IFLA_BOND_AD_INFO_AGGREGATOR,
IFLA_BOND_AD_INFO_NUM_PORTS,
IFLA_BOND_AD_INFO_ACTOR_KEY,
IFLA_BOND_AD_INFO_PARTNER_KEY,
IFLA_BOND_AD_INFO_PARTNER_MAC,
__IFLA_BOND_AD_INFO_MAX,
};
#define IFLA_BOND_AD_INFO_MAX (__IFLA_BOND_AD_INFO_MAX - 1)
enum {
IFLA_BOND_SLAVE_UNSPEC,
IFLA_BOND_SLAVE_STATE,
IFLA_BOND_SLAVE_MII_STATUS,
IFLA_BOND_SLAVE_LINK_FAILURE_COUNT,
IFLA_BOND_SLAVE_PERM_HWADDR,
IFLA_BOND_SLAVE_QUEUE_ID,
IFLA_BOND_SLAVE_AD_AGGREGATOR_ID,
IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE,
IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE,
__IFLA_BOND_SLAVE_MAX,
};
#define IFLA_BOND_SLAVE_MAX (__IFLA_BOND_SLAVE_MAX - 1)
/* SR-IOV virtual function management section */
enum {
IFLA_VF_INFO_UNSPEC,
IFLA_VF_INFO,
__IFLA_VF_INFO_MAX,
};
#define IFLA_VF_INFO_MAX (__IFLA_VF_INFO_MAX - 1)
enum {
IFLA_VF_UNSPEC,
IFLA_VF_MAC, /* Hardware queue specific attributes */
IFLA_VF_VLAN, /* VLAN ID and QoS */
IFLA_VF_TX_RATE, /* Max TX Bandwidth Allocation */
IFLA_VF_SPOOFCHK, /* Spoof Checking on/off switch */
IFLA_VF_LINK_STATE, /* link state enable/disable/auto switch */
IFLA_VF_RATE, /* Min and Max TX Bandwidth Allocation */
IFLA_VF_RSS_QUERY_EN, /* RSS Redirection Table and Hash Key query
* on/off switch
*/
IFLA_VF_STATS, /* network device statistics */
IFLA_VF_TRUST, /* Trust VF */
IFLA_VF_IB_NODE_GUID, /* VF Infiniband node GUID */
IFLA_VF_IB_PORT_GUID, /* VF Infiniband port GUID */
IFLA_VF_VLAN_LIST, /* nested list of vlans, option for QinQ */
__IFLA_VF_MAX,
};
#define IFLA_VF_MAX (__IFLA_VF_MAX - 1)
struct ifla_vf_mac {
__u32 vf;
__u8 mac[32]; /* MAX_ADDR_LEN */
};
struct ifla_vf_vlan {
__u32 vf;
__u32 vlan; /* 0 - 4095, 0 disables VLAN filter */
__u32 qos;
};
enum {
IFLA_VF_VLAN_INFO_UNSPEC,
IFLA_VF_VLAN_INFO, /* VLAN ID, QoS and VLAN protocol */
__IFLA_VF_VLAN_INFO_MAX,
};
#define IFLA_VF_VLAN_INFO_MAX (__IFLA_VF_VLAN_INFO_MAX - 1)
#define MAX_VLAN_LIST_LEN 1
struct ifla_vf_vlan_info {
__u32 vf;
__u32 vlan; /* 0 - 4095, 0 disables VLAN filter */
__u32 qos;
__be16 vlan_proto; /* VLAN protocol either 802.1Q or 802.1ad */
};
struct ifla_vf_tx_rate {
__u32 vf;
__u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */
};
struct ifla_vf_rate {
__u32 vf;
__u32 min_tx_rate; /* Min Bandwidth in Mbps */
__u32 max_tx_rate; /* Max Bandwidth in Mbps */
};
struct ifla_vf_spoofchk {
__u32 vf;
__u32 setting;
};
struct ifla_vf_guid {
__u32 vf;
__u64 guid;
};
enum {
IFLA_VF_LINK_STATE_AUTO, /* link state of the uplink */
IFLA_VF_LINK_STATE_ENABLE, /* link always up */
IFLA_VF_LINK_STATE_DISABLE, /* link always down */
__IFLA_VF_LINK_STATE_MAX,
};
struct ifla_vf_link_state {
__u32 vf;
__u32 link_state;
};
struct ifla_vf_rss_query_en {
__u32 vf;
__u32 setting;
};
enum {
IFLA_VF_STATS_RX_PACKETS,
IFLA_VF_STATS_TX_PACKETS,
IFLA_VF_STATS_RX_BYTES,
IFLA_VF_STATS_TX_BYTES,
IFLA_VF_STATS_BROADCAST,
IFLA_VF_STATS_MULTICAST,
IFLA_VF_STATS_PAD,
IFLA_VF_STATS_RX_DROPPED,
IFLA_VF_STATS_TX_DROPPED,
__IFLA_VF_STATS_MAX,
};
#define IFLA_VF_STATS_MAX (__IFLA_VF_STATS_MAX - 1)
struct ifla_vf_trust {
__u32 vf;
__u32 setting;
};
/* VF ports management section
*
* Nested layout of set/get msg is:
*
* [IFLA_NUM_VF]
* [IFLA_VF_PORTS]
* [IFLA_VF_PORT]
* [IFLA_PORT_*], ...
* [IFLA_VF_PORT]
* [IFLA_PORT_*], ...
* ...
* [IFLA_PORT_SELF]
* [IFLA_PORT_*], ...
*/
enum {
IFLA_VF_PORT_UNSPEC,
IFLA_VF_PORT, /* nest */
__IFLA_VF_PORT_MAX,
};
#define IFLA_VF_PORT_MAX (__IFLA_VF_PORT_MAX - 1)
enum {
IFLA_PORT_UNSPEC,
IFLA_PORT_VF, /* __u32 */
IFLA_PORT_PROFILE, /* string */
IFLA_PORT_VSI_TYPE, /* 802.1Qbg (pre-)standard VDP */
IFLA_PORT_INSTANCE_UUID, /* binary UUID */
IFLA_PORT_HOST_UUID, /* binary UUID */
IFLA_PORT_REQUEST, /* __u8 */
IFLA_PORT_RESPONSE, /* __u16, output only */
__IFLA_PORT_MAX,
};
#define IFLA_PORT_MAX (__IFLA_PORT_MAX - 1)
#define PORT_PROFILE_MAX 40
#define PORT_UUID_MAX 16
#define PORT_SELF_VF -1
enum {
PORT_REQUEST_PREASSOCIATE = 0,
PORT_REQUEST_PREASSOCIATE_RR,
PORT_REQUEST_ASSOCIATE,
PORT_REQUEST_DISASSOCIATE,
};
enum {
PORT_VDP_RESPONSE_SUCCESS = 0,
PORT_VDP_RESPONSE_INVALID_FORMAT,
PORT_VDP_RESPONSE_INSUFFICIENT_RESOURCES,
PORT_VDP_RESPONSE_UNUSED_VTID,
PORT_VDP_RESPONSE_VTID_VIOLATION,
PORT_VDP_RESPONSE_VTID_VERSION_VIOALTION,
PORT_VDP_RESPONSE_OUT_OF_SYNC,
/* 0x08-0xFF reserved for future VDP use */
PORT_PROFILE_RESPONSE_SUCCESS = 0x100,
PORT_PROFILE_RESPONSE_INPROGRESS,
PORT_PROFILE_RESPONSE_INVALID,
PORT_PROFILE_RESPONSE_BADSTATE,
PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES,
PORT_PROFILE_RESPONSE_ERROR,
};
struct ifla_port_vsi {
__u8 vsi_mgr_id;
__u8 vsi_type_id[3];
__u8 vsi_type_version;
__u8 pad[3];
};
/* IPoIB section */
enum {
IFLA_IPOIB_UNSPEC,
IFLA_IPOIB_PKEY,
IFLA_IPOIB_MODE,
IFLA_IPOIB_UMCAST,
__IFLA_IPOIB_MAX
};
enum {
IPOIB_MODE_DATAGRAM = 0, /* using unreliable datagram QPs */
IPOIB_MODE_CONNECTED = 1, /* using connected QPs */
};
#define IFLA_IPOIB_MAX (__IFLA_IPOIB_MAX - 1)
/* HSR section */
enum {
IFLA_HSR_UNSPEC,
IFLA_HSR_SLAVE1,
IFLA_HSR_SLAVE2,
IFLA_HSR_MULTICAST_SPEC, /* Last byte of supervision addr */
IFLA_HSR_SUPERVISION_ADDR, /* Supervision frame multicast addr */
IFLA_HSR_SEQ_NR,
IFLA_HSR_VERSION, /* HSR version */
__IFLA_HSR_MAX,
};
#define IFLA_HSR_MAX (__IFLA_HSR_MAX - 1)
/* STATS section */
struct if_stats_msg {
__u8 family;
__u8 pad1;
__u16 pad2;
__u32 ifindex;
__u32 filter_mask;
};
/* A stats attribute can be netdev specific or a global stat.
* For netdev stats, lets use the prefix IFLA_STATS_LINK_*
*/
enum {
IFLA_STATS_UNSPEC, /* also used as 64bit pad attribute */
IFLA_STATS_LINK_64,
IFLA_STATS_LINK_XSTATS,
IFLA_STATS_LINK_XSTATS_SLAVE,
IFLA_STATS_LINK_OFFLOAD_XSTATS,
IFLA_STATS_AF_SPEC,
__IFLA_STATS_MAX,
};
#define IFLA_STATS_MAX (__IFLA_STATS_MAX - 1)
#define IFLA_STATS_FILTER_BIT(ATTR) (1 << (ATTR - 1))
/* These are embedded into IFLA_STATS_LINK_XSTATS:
* [IFLA_STATS_LINK_XSTATS]
* -> [LINK_XSTATS_TYPE_xxx]
* -> [rtnl link type specific attributes]
*/
enum {
LINK_XSTATS_TYPE_UNSPEC,
LINK_XSTATS_TYPE_BRIDGE,
__LINK_XSTATS_TYPE_MAX
};
#define LINK_XSTATS_TYPE_MAX (__LINK_XSTATS_TYPE_MAX - 1)
/* These are stats embedded into IFLA_STATS_LINK_OFFLOAD_XSTATS */
enum {
IFLA_OFFLOAD_XSTATS_UNSPEC,
IFLA_OFFLOAD_XSTATS_CPU_HIT, /* struct rtnl_link_stats64 */
__IFLA_OFFLOAD_XSTATS_MAX
};
#define IFLA_OFFLOAD_XSTATS_MAX (__IFLA_OFFLOAD_XSTATS_MAX - 1)
/* XDP section */
#define XDP_FLAGS_UPDATE_IF_NOEXIST (1U << 0)
#define XDP_FLAGS_SKB_MODE (1U << 1)
#define XDP_FLAGS_DRV_MODE (1U << 2)
#define XDP_FLAGS_HW_MODE (1U << 3)
#define XDP_FLAGS_MODES (XDP_FLAGS_SKB_MODE | \
XDP_FLAGS_DRV_MODE | \
XDP_FLAGS_HW_MODE)
#define XDP_FLAGS_MASK (XDP_FLAGS_UPDATE_IF_NOEXIST | \
XDP_FLAGS_MODES)
/* These are stored into IFLA_XDP_ATTACHED on dump. */
enum {
XDP_ATTACHED_NONE = 0,
XDP_ATTACHED_DRV,
XDP_ATTACHED_SKB,
XDP_ATTACHED_HW,
};
enum {
IFLA_XDP_UNSPEC,
IFLA_XDP_FD,
IFLA_XDP_ATTACHED,
IFLA_XDP_FLAGS,
IFLA_XDP_PROG_ID,
__IFLA_XDP_MAX,
};
#define IFLA_XDP_MAX (__IFLA_XDP_MAX - 1)
enum {
IFLA_EVENT_NONE,
IFLA_EVENT_REBOOT, /* internal reset / reboot */
IFLA_EVENT_FEATURES, /* change in offload features */
IFLA_EVENT_BONDING_FAILOVER, /* change in active slave */
IFLA_EVENT_NOTIFY_PEERS, /* re-sent grat. arp/ndisc */
IFLA_EVENT_IGMP_RESEND, /* re-sent IGMP JOIN */
IFLA_EVENT_BONDING_OPTIONS, /* change in bonding options */
};
#endif /* _UAPI_LINUX_IF_LINK_H */

251
tools/include/uapi/linux/netlink.h Normal file
View File

@ -0,0 +1,251 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI__LINUX_NETLINK_H
#define _UAPI__LINUX_NETLINK_H
#include <linux/kernel.h>
#include <linux/socket.h> /* for __kernel_sa_family_t */
#include <linux/types.h>
#define NETLINK_ROUTE 0 /* Routing/device hook */
#define NETLINK_UNUSED 1 /* Unused number */
#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
#define NETLINK_FIREWALL 3 /* Unused number, formerly ip_queue */
#define NETLINK_SOCK_DIAG 4 /* socket monitoring */
#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
#define NETLINK_XFRM 6 /* ipsec */
#define NETLINK_SELINUX 7 /* SELinux event notifications */
#define NETLINK_ISCSI 8 /* Open-iSCSI */
#define NETLINK_AUDIT 9 /* auditing */
#define NETLINK_FIB_LOOKUP 10
#define NETLINK_CONNECTOR 11
#define NETLINK_NETFILTER 12 /* netfilter subsystem */
#define NETLINK_IP6_FW 13
#define NETLINK_DNRTMSG 14 /* DECnet routing messages */
#define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
#define NETLINK_GENERIC 16
/* leave room for NETLINK_DM (DM Events) */
#define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */
#define NETLINK_ECRYPTFS 19
#define NETLINK_RDMA 20
#define NETLINK_CRYPTO 21 /* Crypto layer */
#define NETLINK_SMC 22 /* SMC monitoring */
#define NETLINK_INET_DIAG NETLINK_SOCK_DIAG
#define MAX_LINKS 32
struct sockaddr_nl {
__kernel_sa_family_t nl_family; /* AF_NETLINK */
unsigned short nl_pad; /* zero */
__u32 nl_pid; /* port ID */
__u32 nl_groups; /* multicast groups mask */
};
struct nlmsghdr {
__u32 nlmsg_len; /* Length of message including header */
__u16 nlmsg_type; /* Message content */
__u16 nlmsg_flags; /* Additional flags */
__u32 nlmsg_seq; /* Sequence number */
__u32 nlmsg_pid; /* Sending process port ID */
};
/* Flags values */
#define NLM_F_REQUEST 0x01 /* It is request message. */
#define NLM_F_MULTI 0x02 /* Multipart message, terminated by NLMSG_DONE */
#define NLM_F_ACK 0x04 /* Reply with ack, with zero or error code */
#define NLM_F_ECHO 0x08 /* Echo this request */
#define NLM_F_DUMP_INTR 0x10 /* Dump was inconsistent due to sequence change */
#define NLM_F_DUMP_FILTERED 0x20 /* Dump was filtered as requested */
/* Modifiers to GET request */
#define NLM_F_ROOT 0x100 /* specify tree root */
#define NLM_F_MATCH 0x200 /* return all matching */
#define NLM_F_ATOMIC 0x400 /* atomic GET */
#define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH)
/* Modifiers to NEW request */
#define NLM_F_REPLACE 0x100 /* Override existing */
#define NLM_F_EXCL 0x200 /* Do not touch, if it exists */
#define NLM_F_CREATE 0x400 /* Create, if it does not exist */
#define NLM_F_APPEND 0x800 /* Add to end of list */
/* Modifiers to DELETE request */
#define NLM_F_NONREC 0x100 /* Do not delete recursively */
/* Flags for ACK message */
#define NLM_F_CAPPED 0x100 /* request was capped */
#define NLM_F_ACK_TLVS 0x200 /* extended ACK TVLs were included */
/*
4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL
4.4BSD CHANGE NLM_F_REPLACE
True CHANGE NLM_F_CREATE|NLM_F_REPLACE
Append NLM_F_CREATE
Check NLM_F_EXCL
*/
#define NLMSG_ALIGNTO 4U
#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
#define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN)
#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
#define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
(struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))
#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
(nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
(nlh)->nlmsg_len <= (len))
#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
#define NLMSG_NOOP 0x1 /* Nothing. */
#define NLMSG_ERROR 0x2 /* Error */
#define NLMSG_DONE 0x3 /* End of a dump */
#define NLMSG_OVERRUN 0x4 /* Data lost */
#define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
struct nlmsgerr {
int error;
struct nlmsghdr msg;
/*
* followed by the message contents unless NETLINK_CAP_ACK was set
* or the ACK indicates success (error == 0)
* message length is aligned with NLMSG_ALIGN()
*/
/*
* followed by TLVs defined in enum nlmsgerr_attrs
* if NETLINK_EXT_ACK was set
*/
};
/**
* enum nlmsgerr_attrs - nlmsgerr attributes
* @NLMSGERR_ATTR_UNUSED: unused
* @NLMSGERR_ATTR_MSG: error message string (string)
* @NLMSGERR_ATTR_OFFS: offset of the invalid attribute in the original
* message, counting from the beginning of the header (u32)
* @NLMSGERR_ATTR_COOKIE: arbitrary subsystem specific cookie to
* be used - in the success case - to identify a created
* object or operation or similar (binary)
* @__NLMSGERR_ATTR_MAX: number of attributes
* @NLMSGERR_ATTR_MAX: highest attribute number
*/
enum nlmsgerr_attrs {
NLMSGERR_ATTR_UNUSED,
NLMSGERR_ATTR_MSG,
NLMSGERR_ATTR_OFFS,
NLMSGERR_ATTR_COOKIE,
__NLMSGERR_ATTR_MAX,
NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1
};
#define NETLINK_ADD_MEMBERSHIP 1
#define NETLINK_DROP_MEMBERSHIP 2
#define NETLINK_PKTINFO 3
#define NETLINK_BROADCAST_ERROR 4
#define NETLINK_NO_ENOBUFS 5
#ifndef __KERNEL__
#define NETLINK_RX_RING 6
#define NETLINK_TX_RING 7
#endif
#define NETLINK_LISTEN_ALL_NSID 8
#define NETLINK_LIST_MEMBERSHIPS 9
#define NETLINK_CAP_ACK 10
#define NETLINK_EXT_ACK 11
struct nl_pktinfo {
__u32 group;
};
struct nl_mmap_req {
unsigned int nm_block_size;
unsigned int nm_block_nr;
unsigned int nm_frame_size;
unsigned int nm_frame_nr;
};
struct nl_mmap_hdr {
unsigned int nm_status;
unsigned int nm_len;
__u32 nm_group;
/* credentials */
__u32 nm_pid;
__u32 nm_uid;
__u32 nm_gid;
};
#ifndef __KERNEL__
enum nl_mmap_status {
NL_MMAP_STATUS_UNUSED,
NL_MMAP_STATUS_RESERVED,
NL_MMAP_STATUS_VALID,
NL_MMAP_STATUS_COPY,
NL_MMAP_STATUS_SKIP,
};
#define NL_MMAP_MSG_ALIGNMENT NLMSG_ALIGNTO
#define NL_MMAP_MSG_ALIGN(sz) __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT)
#define NL_MMAP_HDRLEN NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
#endif
#define NET_MAJOR 36 /* Major 36 is reserved for networking */
enum {
NETLINK_UNCONNECTED = 0,
NETLINK_CONNECTED,
};
/*
* <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
* +---------------------+- - -+- - - - - - - - - -+- - -+
* | Header | Pad | Payload | Pad |
* | (struct nlattr) | ing | | ing |
* +---------------------+- - -+- - - - - - - - - -+- - -+
* <-------------- nlattr->nla_len -------------->
*/
struct nlattr {
__u16 nla_len;
__u16 nla_type;
};
/*
* nla_type (16 bits)
* +---+---+-------------------------------+
* | N | O | Attribute Type |
* +---+---+-------------------------------+
* N := Carries nested attributes
* O := Payload stored in network byte order
*
* Note: The N and O flag are mutually exclusive.
*/
#define NLA_F_NESTED (1 << 15)
#define NLA_F_NET_BYTEORDER (1 << 14)
#define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
#define NLA_ALIGNTO 4
#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
/* Generic 32 bitflags attribute content sent to the kernel.
*
* The value is a bitmap that defines the values being set
* The selector is a bitmask that defines which value is legit
*
* Examples:
* value = 0x0, and selector = 0x1
* implies we are selecting bit 1 and we want to set its value to 0.
*
* value = 0x2, and selector = 0x2
* implies we are selecting bit 2 and we want to set its value to 1.
*
*/
struct nla_bitfield32 {
__u32 value;
__u32 selector;
};
#endif /* _UAPI__LINUX_NETLINK_H */

2
tools/lib/bpf/Build
View File

@ -1 +1 @@
libbpf-y := libbpf.o bpf.o
libbpf-y := libbpf.o bpf.o nlattr.o

6
tools/lib/bpf/Makefile
View File

@ -160,6 +160,12 @@ $(BPF_IN): force elfdep bpfdep
@(test -f ../../include/uapi/linux/bpf_common.h -a -f ../../../include/uapi/linux/bpf_common.h && ( \
(diff -B ../../include/uapi/linux/bpf_common.h ../../../include/uapi/linux/bpf_common.h >/dev/null) || \
echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf_common.h' differs from latest version at 'include/uapi/linux/bpf_common.h'" >&2 )) || true
@(test -f ../../include/uapi/linux/netlink.h -a -f ../../../include/uapi/linux/netlink.h && ( \
(diff -B ../../include/uapi/linux/netlink.h ../../../include/uapi/linux/netlink.h >/dev/null) || \
echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/netlink.h' differs from latest version at 'include/uapi/linux/netlink.h'" >&2 )) || true
@(test -f ../../include/uapi/linux/if_link.h -a -f ../../../include/uapi/linux/if_link.h && ( \
(diff -B ../../include/uapi/linux/if_link.h ../../../include/uapi/linux/if_link.h >/dev/null) || \
echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'" >&2 )) || true
$(Q)$(MAKE) $(build)=libbpf
$(OUTPUT)libbpf.so: $(BPF_IN)

135
tools/lib/bpf/bpf.c
View File

@ -1,3 +1,5 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* common eBPF ELF operations.
*
@ -25,6 +27,16 @@
#include <asm/unistd.h>
#include <linux/bpf.h>
#include "bpf.h"
#include "libbpf.h"
#include "nlattr.h"
#include <linux/rtnetlink.h>
#include <linux/if_link.h>
#include <sys/socket.h>
#include <errno.h>
#ifndef SOL_NETLINK
#define SOL_NETLINK 270
#endif
/*
* When building perf, unistd.h is overridden. __NR_bpf is
@ -46,7 +58,9 @@
# endif
#endif
#ifndef min
#define min(x, y) ((x) < (y) ? (x) : (y))
#endif
static inline __u64 ptr_to_u64(const void *ptr)
{
@ -413,3 +427,124 @@ int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len)
return err;
}
int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags)
{
struct sockaddr_nl sa;
int sock, seq = 0, len, ret = -1;
char buf[4096];
struct nlattr *nla, *nla_xdp;
struct {
struct nlmsghdr nh;
struct ifinfomsg ifinfo;
char attrbuf[64];
} req;
struct nlmsghdr *nh;
struct nlmsgerr *err;
socklen_t addrlen;
int one = 1;
memset(&sa, 0, sizeof(sa));
sa.nl_family = AF_NETLINK;
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock < 0) {
return -errno;
}
if (setsockopt(sock, SOL_NETLINK, NETLINK_EXT_ACK,
&one, sizeof(one)) < 0) {
fprintf(stderr, "Netlink error reporting not supported\n");
}
if (bind(sock, (struct sockaddr *)&sa, sizeof(sa)) < 0) {
ret = -errno;
goto cleanup;
}
addrlen = sizeof(sa);
if (getsockname(sock, (struct sockaddr *)&sa, &addrlen) < 0) {
ret = -errno;
goto cleanup;
}
if (addrlen != sizeof(sa)) {
ret = -LIBBPF_ERRNO__INTERNAL;
goto cleanup;
}
memset(&req, 0, sizeof(req));
req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
req.nh.nlmsg_type = RTM_SETLINK;
req.nh.nlmsg_pid = 0;
req.nh.nlmsg_seq = ++seq;
req.ifinfo.ifi_family = AF_UNSPEC;
req.ifinfo.ifi_index = ifindex;
/* started nested attribute for XDP */
nla = (struct nlattr *)(((char *)&req)
+ NLMSG_ALIGN(req.nh.nlmsg_len));
nla->nla_type = NLA_F_NESTED | IFLA_XDP;
nla->nla_len = NLA_HDRLEN;
/* add XDP fd */
nla_xdp = (struct nlattr *)((char *)nla + nla->nla_len);
nla_xdp->nla_type = IFLA_XDP_FD;
nla_xdp->nla_len = NLA_HDRLEN + sizeof(int);
memcpy((char *)nla_xdp + NLA_HDRLEN, &fd, sizeof(fd));
nla->nla_len += nla_xdp->nla_len;
/* if user passed in any flags, add those too */
if (flags) {
nla_xdp = (struct nlattr *)((char *)nla + nla->nla_len);
nla_xdp->nla_type = IFLA_XDP_FLAGS;
nla_xdp->nla_len = NLA_HDRLEN + sizeof(flags);
memcpy((char *)nla_xdp + NLA_HDRLEN, &flags, sizeof(flags));
nla->nla_len += nla_xdp->nla_len;
}
req.nh.nlmsg_len += NLA_ALIGN(nla->nla_len);
if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
ret = -errno;
goto cleanup;
}
len = recv(sock, buf, sizeof(buf), 0);
if (len < 0) {
ret = -errno;
goto cleanup;
}
for (nh = (struct nlmsghdr *)buf; NLMSG_OK(nh, len);
nh = NLMSG_NEXT(nh, len)) {
if (nh->nlmsg_pid != sa.nl_pid) {
ret = -LIBBPF_ERRNO__WRNGPID;
goto cleanup;
}
if (nh->nlmsg_seq != seq) {
ret = -LIBBPF_ERRNO__INVSEQ;
goto cleanup;
}
switch (nh->nlmsg_type) {
case NLMSG_ERROR:
err = (struct nlmsgerr *)NLMSG_DATA(nh);
if (!err->error)
continue;
ret = err->error;
nla_dump_errormsg(nh);
goto cleanup;
case NLMSG_DONE:
break;
default:
break;
}
}
ret = 0;
cleanup:
close(sock);
return ret;
}

2
tools/lib/bpf/bpf.h
View File

@ -1,3 +1,5 @@
/* SPDX-License-Identifier: LGPL-2.1 */
/*
* common eBPF ELF operations.
*

4
tools/lib/bpf/libbpf.c
View File

@ -1,3 +1,5 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* Common eBPF ELF object loading operations.
*
@ -106,6 +108,8 @@ static const char *libbpf_strerror_table[NR_ERRNO] = {
[ERRCODE_OFFSET(PROG2BIG)] = "Program too big",
[ERRCODE_OFFSET(KVER)] = "Incorrect kernel version",
[ERRCODE_OFFSET(PROGTYPE)] = "Kernel doesn't support this program type",
[ERRCODE_OFFSET(WRNGPID)] = "Wrong pid in netlink message",
[ERRCODE_OFFSET(INVSEQ)] = "Invalid netlink sequence",
};
int libbpf_strerror(int err, char *buf, size_t size)

6
tools/lib/bpf/libbpf.h
View File

@ -1,3 +1,5 @@
/* SPDX-License-Identifier: LGPL-2.1 */
/*
* Common eBPF ELF object loading operations.
*
@ -42,6 +44,8 @@ enum libbpf_errno {
LIBBPF_ERRNO__PROG2BIG, /* Program too big */
LIBBPF_ERRNO__KVER, /* Incorrect kernel version */
LIBBPF_ERRNO__PROGTYPE, /* Kernel doesn't support this program type */
LIBBPF_ERRNO__WRNGPID, /* Wrong pid in netlink message */
LIBBPF_ERRNO__INVSEQ, /* Invalid netlink sequence */
__LIBBPF_ERRNO__END,
};
@ -246,4 +250,6 @@ long libbpf_get_error(const void *ptr);
int bpf_prog_load(const char *file, enum bpf_prog_type type,
struct bpf_object **pobj, int *prog_fd);
int bpf_set_link_xdp_fd(int ifindex, int fd, __u32 flags);
#endif

187
tools/lib/bpf/nlattr.c Normal file
View File

@ -0,0 +1,187 @@
// SPDX-License-Identifier: LGPL-2.1
/*
* NETLINK Netlink attributes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2013 Thomas Graf <tgraf@suug.ch>
*/
#include <errno.h>
#include "nlattr.h"
#include <linux/rtnetlink.h>
#include <string.h>
#include <stdio.h>
static uint16_t nla_attr_minlen[NLA_TYPE_MAX+1] = {
[NLA_U8] = sizeof(uint8_t),
[NLA_U16] = sizeof(uint16_t),
[NLA_U32] = sizeof(uint32_t),
[NLA_U64] = sizeof(uint64_t),
[NLA_STRING] = 1,
[NLA_FLAG] = 0,
};
static int nla_len(const struct nlattr *nla)
{
return nla->nla_len - NLA_HDRLEN;
}
static struct nlattr *nla_next(const struct nlattr *nla, int *remaining)
{
int totlen = NLA_ALIGN(nla->nla_len);
*remaining -= totlen;
return (struct nlattr *) ((char *) nla + totlen);
}
static int nla_ok(const struct nlattr *nla, int remaining)
{
return remaining >= sizeof(*nla) &&
nla->nla_len >= sizeof(*nla) &&
nla->nla_len <= remaining;
}
static void *nla_data(const struct nlattr *nla)
{
return (char *) nla + NLA_HDRLEN;
}
static int nla_type(const struct nlattr *nla)
{
return nla->nla_type & NLA_TYPE_MASK;
}
static int validate_nla(struct nlattr *nla, int maxtype,
struct nla_policy *policy)
{
struct nla_policy *pt;
unsigned int minlen = 0;
int type = nla_type(nla);
if (type < 0 || type > maxtype)
return 0;
pt = &policy[type];
if (pt->type > NLA_TYPE_MAX)
return 0;
if (pt->minlen)
minlen = pt->minlen;
else if (pt->type != NLA_UNSPEC)
minlen = nla_attr_minlen[pt->type];
if (nla_len(nla) < minlen)
return -1;
if (pt->maxlen && nla_len(nla) > pt->maxlen)
return -1;
if (pt->type == NLA_STRING) {
char *data = nla_data(nla);
if (data[nla_len(nla) - 1] != '\0')
return -1;
}
return 0;
}
static inline int nlmsg_len(const struct nlmsghdr *nlh)
{
return nlh->nlmsg_len - NLMSG_HDRLEN;
}
/**
* Create attribute index based on a stream of attributes.
* @arg tb Index array to be filled (maxtype+1 elements).
* @arg maxtype Maximum attribute type expected and accepted.
* @arg head Head of attribute stream.
* @arg len Length of attribute stream.
* @arg policy Attribute validation policy.
*
* Iterates over the stream of attributes and stores a pointer to each
* attribute in the index array using the attribute type as index to
* the array. Attribute with a type greater than the maximum type
* specified will be silently ignored in order to maintain backwards
* compatibility. If \a policy is not NULL, the attribute will be
* validated using the specified policy.
*
* @see nla_validate
* @return 0 on success or a negative error code.
*/
static int nla_parse(struct nlattr *tb[], int maxtype, struct nlattr *head, int len,
struct nla_policy *policy)
{
struct nlattr *nla;
int rem, err;
memset(tb, 0, sizeof(struct nlattr *) * (maxtype + 1));
nla_for_each_attr(nla, head, len, rem) {
int type = nla_type(nla);
if (type > maxtype)
continue;
if (policy) {
err = validate_nla(nla, maxtype, policy);
if (err < 0)
goto errout;
}
if (tb[type])
fprintf(stderr, "Attribute of type %#x found multiple times in message, "
"previous attribute is being ignored.\n", type);
tb[type] = nla;
}
err = 0;
errout:
return err;
}
/* dump netlink extended ack error message */
int nla_dump_errormsg(struct nlmsghdr *nlh)
{
struct nla_policy extack_policy[NLMSGERR_ATTR_MAX + 1] = {
[NLMSGERR_ATTR_MSG] = { .type = NLA_STRING },
[NLMSGERR_ATTR_OFFS] = { .type = NLA_U32 },
};
struct nlattr *tb[NLMSGERR_ATTR_MAX + 1], *attr;
struct nlmsgerr *err;
char *errmsg = NULL;
int hlen, alen;
/* no TLVs, nothing to do here */
if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS))
return 0;
err = (struct nlmsgerr *)NLMSG_DATA(nlh);
hlen = sizeof(*err);
/* if NLM_F_CAPPED is set then the inner err msg was capped */
if (!(nlh->nlmsg_flags & NLM_F_CAPPED))
hlen += nlmsg_len(&err->msg);
attr = (struct nlattr *) ((void *) err + hlen);
alen = nlh->nlmsg_len - hlen;
if (nla_parse(tb, NLMSGERR_ATTR_MAX, attr, alen, extack_policy) != 0) {
fprintf(stderr,
"Failed to parse extended error attributes\n");
return 0;
}
if (tb[NLMSGERR_ATTR_MSG])
errmsg = (char *) nla_data(tb[NLMSGERR_ATTR_MSG]);
fprintf(stderr, "Kernel error message: %s\n", errmsg);
return 0;
}

72
tools/lib/bpf/nlattr.h Normal file
View File

@ -0,0 +1,72 @@
/* SPDX-License-Identifier: LGPL-2.1 */
/*
* NETLINK Netlink attributes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2013 Thomas Graf <tgraf@suug.ch>
*/
#ifndef __NLATTR_H
#define __NLATTR_H
#include <stdint.h>
#include <linux/netlink.h>
/* avoid multiple definition of netlink features */
#define __LINUX_NETLINK_H
/**
* Standard attribute types to specify validation policy
*/
enum {
NLA_UNSPEC, /**< Unspecified type, binary data chunk */
NLA_U8, /**< 8 bit integer */
NLA_U16, /**< 16 bit integer */
NLA_U32, /**< 32 bit integer */
NLA_U64, /**< 64 bit integer */
NLA_STRING, /**< NUL terminated character string */
NLA_FLAG, /**< Flag */
NLA_MSECS, /**< Micro seconds (64bit) */
NLA_NESTED, /**< Nested attributes */
__NLA_TYPE_MAX,
};
#define NLA_TYPE_MAX (__NLA_TYPE_MAX - 1)
/**
* @ingroup attr
* Attribute validation policy.
*
* See section @core_doc{core_attr_parse,Attribute Parsing} for more details.
*/
struct nla_policy {
/** Type of attribute or NLA_UNSPEC */
uint16_t type;
/** Minimal length of payload required */
uint16_t minlen;
/** Maximal length of payload allowed */
uint16_t maxlen;
};
/**
* @ingroup attr
* Iterate over a stream of attributes
* @arg pos loop counter, set to current attribute
* @arg head head of attribute stream
* @arg len length of attribute stream
* @arg rem initialized to len, holds bytes currently remaining in stream
*/
#define nla_for_each_attr(pos, head, len, rem) \
for (pos = head, rem = len; \
nla_ok(pos, rem); \
pos = nla_next(pos, &(rem)))
int nla_dump_errormsg(struct nlmsghdr *nlh);
#endif /* __NLATTR_H */

1
tools/testing/selftests/bpf/.gitignore vendored
View File

@ -8,5 +8,6 @@ fixdep
test_align
test_dev_cgroup
test_progs
test_tcpbpf_user
test_verifier_log
feature

4
tools/testing/selftests/bpf/Makefile
View File

@ -27,7 +27,7 @@ TEST_PROGS := test_kmod.sh test_xdp_redirect.sh test_xdp_meta.sh \
include ../lib.mk
BPFOBJ := $(OUTPUT)/libbpf.a $(OUTPUT)/cgroup_helpers.c
BPFOBJ := $(OUTPUT)/libbpf.a cgroup_helpers.c
$(TEST_GEN_PROGS): $(BPFOBJ)
@ -58,7 +58,7 @@ CLANG_FLAGS = -I. -I./include/uapi -I../../../include/uapi \
$(OUTPUT)/test_l4lb_noinline.o: CLANG_FLAGS += -fno-inline
$(OUTPUT)/test_xdp_noinline.o: CLANG_FLAGS += -fno-inline
%.o: %.c
$(OUTPUT)/%.o: %.c
$(CLANG) $(CLANG_FLAGS) \
-O2 -target bpf -emit-llvm -c $< -o - | \
$(LLC) -march=bpf -mcpu=$(CPU) -filetype=obj -o $@

14
tools/testing/selftests/bpf/test_verifier.c
View File

@ -7779,6 +7779,20 @@ static struct bpf_test tests[] = {
.errstr = "unknown opcode d7",
.result = REJECT,
},
{
"XDP, using ifindex from netdev",
.insns = {
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
offsetof(struct xdp_md, ingress_ifindex)),
BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 1, 1),
BPF_MOV64_IMM(BPF_REG_0, 1),
BPF_EXIT_INSN(),
},
.result = ACCEPT,
.prog_type = BPF_PROG_TYPE_XDP,
.retval = 1,
},
{
"meta access, test1",
.insns = {