bpf: add selftest for lirc_mode2 type program
This is simple test over rc-loopback. Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Sean Young
committed by
Daniel Borkmann
Daniel Borkmann
parent
f4364dcfc8
commit
6bdd533cee
@@ -143,6 +143,7 @@ enum bpf_prog_type {
|
||||
BPF_PROG_TYPE_RAW_TRACEPOINT,
|
||||
BPF_PROG_TYPE_CGROUP_SOCK_ADDR,
|
||||
BPF_PROG_TYPE_LWT_SEG6LOCAL,
|
||||
BPF_PROG_TYPE_LIRC_MODE2,
|
||||
};
|
||||
|
||||
enum bpf_attach_type {
|
||||
@@ -162,6 +163,7 @@ enum bpf_attach_type {
|
||||
BPF_CGROUP_INET6_POST_BIND,
|
||||
BPF_CGROUP_UDP4_SENDMSG,
|
||||
BPF_CGROUP_UDP6_SENDMSG,
|
||||
BPF_LIRC_MODE2,
|
||||
__MAX_BPF_ATTACH_TYPE
|
||||
};
|
||||
|
||||
@@ -1852,10 +1854,10 @@ union bpf_attr {
|
||||
* If lookup is successful and result shows packet is to be
|
||||
* forwarded, the neighbor tables are searched for the nexthop.
|
||||
* If successful (ie., FIB lookup shows forwarding and nexthop
|
||||
* is resolved), the nexthop address is returned in ipv4_dst,
|
||||
* ipv6_dst or mpls_out based on family, smac is set to mac
|
||||
* address of egress device, dmac is set to nexthop mac address,
|
||||
* rt_metric is set to metric from route.
|
||||
* is resolved), the nexthop address is returned in ipv4_dst
|
||||
* or ipv6_dst based on family, smac is set to mac address of
|
||||
* egress device, dmac is set to nexthop mac address, rt_metric
|
||||
* is set to metric from route (IPv4/IPv6 only).
|
||||
*
|
||||
* *plen* argument is the size of the passed in struct.
|
||||
* *flags* argument can be a combination of one or more of the
|
||||
@@ -2005,6 +2007,53 @@ union bpf_attr {
|
||||
* direct packet access.
|
||||
* Return
|
||||
* 0 on success, or a negative error in case of failure.
|
||||
*
|
||||
* int bpf_rc_keydown(void *ctx, u32 protocol, u64 scancode, u32 toggle)
|
||||
* Description
|
||||
* This helper is used in programs implementing IR decoding, to
|
||||
* report a successfully decoded key press with *scancode*,
|
||||
* *toggle* value in the given *protocol*. The scancode will be
|
||||
* translated to a keycode using the rc keymap, and reported as
|
||||
* an input key down event. After a period a key up event is
|
||||
* generated. This period can be extended by calling either
|
||||
* **bpf_rc_keydown** () again with the same values, or calling
|
||||
* **bpf_rc_repeat** ().
|
||||
*
|
||||
* Some protocols include a toggle bit, in case the button was
|
||||
* released and pressed again between consecutive scancodes.
|
||||
*
|
||||
* The *ctx* should point to the lirc sample as passed into
|
||||
* the program.
|
||||
*
|
||||
* The *protocol* is the decoded protocol number (see
|
||||
* **enum rc_proto** for some predefined values).
|
||||
*
|
||||
* This helper is only available is the kernel was compiled with
|
||||
* the **CONFIG_BPF_LIRC_MODE2** configuration option set to
|
||||
* "**y**".
|
||||
*
|
||||
* Return
|
||||
* 0
|
||||
*
|
||||
* int bpf_rc_repeat(void *ctx)
|
||||
* Description
|
||||
* This helper is used in programs implementing IR decoding, to
|
||||
* report a successfully decoded repeat key message. This delays
|
||||
* the generation of a key up event for previously generated
|
||||
* key down event.
|
||||
*
|
||||
* Some IR protocols like NEC have a special IR message for
|
||||
* repeating last button, for when a button is held down.
|
||||
*
|
||||
* The *ctx* should point to the lirc sample as passed into
|
||||
* the program.
|
||||
*
|
||||
* This helper is only available is the kernel was compiled with
|
||||
* the **CONFIG_BPF_LIRC_MODE2** configuration option set to
|
||||
* "**y**".
|
||||
*
|
||||
* Return
|
||||
* 0
|
||||
*/
|
||||
#define __BPF_FUNC_MAPPER(FN) \
|
||||
FN(unspec), \
|
||||
@@ -2083,7 +2132,9 @@ union bpf_attr {
|
||||
FN(lwt_push_encap), \
|
||||
FN(lwt_seg6_store_bytes), \
|
||||
FN(lwt_seg6_adjust_srh), \
|
||||
FN(lwt_seg6_action),
|
||||
FN(lwt_seg6_action), \
|
||||
FN(rc_repeat), \
|
||||
FN(rc_keydown),
|
||||
|
||||
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
|
||||
* function eBPF program intends to call
|
||||
@@ -2537,8 +2588,10 @@ struct bpf_raw_tracepoint_args {
|
||||
#define BPF_FIB_LOOKUP_OUTPUT BIT(1)
|
||||
|
||||
struct bpf_fib_lookup {
|
||||
/* input */
|
||||
__u8 family; /* network family, AF_INET, AF_INET6, AF_MPLS */
|
||||
/* input: network family for lookup (AF_INET, AF_INET6)
|
||||
* output: network family of egress nexthop
|
||||
*/
|
||||
__u8 family;
|
||||
|
||||
/* set if lookup is to consider L4 data - e.g., FIB rules */
|
||||
__u8 l4_protocol;
|
||||
@@ -2554,22 +2607,20 @@ struct bpf_fib_lookup {
|
||||
__u8 tos; /* AF_INET */
|
||||
__be32 flowlabel; /* AF_INET6 */
|
||||
|
||||
/* output: metric of fib result */
|
||||
__u32 rt_metric;
|
||||
/* output: metric of fib result (IPv4/IPv6 only) */
|
||||
__u32 rt_metric;
|
||||
};
|
||||
|
||||
union {
|
||||
__be32 mpls_in;
|
||||
__be32 ipv4_src;
|
||||
__u32 ipv6_src[4]; /* in6_addr; network order */
|
||||
};
|
||||
|
||||
/* input to bpf_fib_lookup, *dst is destination address.
|
||||
* output: bpf_fib_lookup sets to gateway address
|
||||
/* input to bpf_fib_lookup, ipv{4,6}_dst is destination address in
|
||||
* network header. output: bpf_fib_lookup sets to gateway address
|
||||
* if FIB lookup returns gateway route
|
||||
*/
|
||||
union {
|
||||
/* return for MPLS lookups */
|
||||
__be32 mpls_out[4]; /* support up to 4 labels */
|
||||
__be32 ipv4_dst;
|
||||
__u32 ipv6_dst[4]; /* in6_addr; network order */
|
||||
};
|
||||
|
||||
217
tools/include/uapi/linux/lirc.h
Normal file
217
tools/include/uapi/linux/lirc.h
Normal file
@@ -0,0 +1,217 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
||||
/*
|
||||
* lirc.h - linux infrared remote control header file
|
||||
* last modified 2010/07/13 by Jarod Wilson
|
||||
*/
|
||||
|
||||
#ifndef _LINUX_LIRC_H
|
||||
#define _LINUX_LIRC_H
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/ioctl.h>
|
||||
|
||||
#define PULSE_BIT 0x01000000
|
||||
#define PULSE_MASK 0x00FFFFFF
|
||||
|
||||
#define LIRC_MODE2_SPACE 0x00000000
|
||||
#define LIRC_MODE2_PULSE 0x01000000
|
||||
#define LIRC_MODE2_FREQUENCY 0x02000000
|
||||
#define LIRC_MODE2_TIMEOUT 0x03000000
|
||||
|
||||
#define LIRC_VALUE_MASK 0x00FFFFFF
|
||||
#define LIRC_MODE2_MASK 0xFF000000
|
||||
|
||||
#define LIRC_SPACE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_SPACE)
|
||||
#define LIRC_PULSE(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_PULSE)
|
||||
#define LIRC_FREQUENCY(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_FREQUENCY)
|
||||
#define LIRC_TIMEOUT(val) (((val)&LIRC_VALUE_MASK) | LIRC_MODE2_TIMEOUT)
|
||||
|
||||
#define LIRC_VALUE(val) ((val)&LIRC_VALUE_MASK)
|
||||
#define LIRC_MODE2(val) ((val)&LIRC_MODE2_MASK)
|
||||
|
||||
#define LIRC_IS_SPACE(val) (LIRC_MODE2(val) == LIRC_MODE2_SPACE)
|
||||
#define LIRC_IS_PULSE(val) (LIRC_MODE2(val) == LIRC_MODE2_PULSE)
|
||||
#define LIRC_IS_FREQUENCY(val) (LIRC_MODE2(val) == LIRC_MODE2_FREQUENCY)
|
||||
#define LIRC_IS_TIMEOUT(val) (LIRC_MODE2(val) == LIRC_MODE2_TIMEOUT)
|
||||
|
||||
/* used heavily by lirc userspace */
|
||||
#define lirc_t int
|
||||
|
||||
/*** lirc compatible hardware features ***/
|
||||
|
||||
#define LIRC_MODE2SEND(x) (x)
|
||||
#define LIRC_SEND2MODE(x) (x)
|
||||
#define LIRC_MODE2REC(x) ((x) << 16)
|
||||
#define LIRC_REC2MODE(x) ((x) >> 16)
|
||||
|
||||
#define LIRC_MODE_RAW 0x00000001
|
||||
#define LIRC_MODE_PULSE 0x00000002
|
||||
#define LIRC_MODE_MODE2 0x00000004
|
||||
#define LIRC_MODE_SCANCODE 0x00000008
|
||||
#define LIRC_MODE_LIRCCODE 0x00000010
|
||||
|
||||
|
||||
#define LIRC_CAN_SEND_RAW LIRC_MODE2SEND(LIRC_MODE_RAW)
|
||||
#define LIRC_CAN_SEND_PULSE LIRC_MODE2SEND(LIRC_MODE_PULSE)
|
||||
#define LIRC_CAN_SEND_MODE2 LIRC_MODE2SEND(LIRC_MODE_MODE2)
|
||||
#define LIRC_CAN_SEND_LIRCCODE LIRC_MODE2SEND(LIRC_MODE_LIRCCODE)
|
||||
|
||||
#define LIRC_CAN_SEND_MASK 0x0000003f
|
||||
|
||||
#define LIRC_CAN_SET_SEND_CARRIER 0x00000100
|
||||
#define LIRC_CAN_SET_SEND_DUTY_CYCLE 0x00000200
|
||||
#define LIRC_CAN_SET_TRANSMITTER_MASK 0x00000400
|
||||
|
||||
#define LIRC_CAN_REC_RAW LIRC_MODE2REC(LIRC_MODE_RAW)
|
||||
#define LIRC_CAN_REC_PULSE LIRC_MODE2REC(LIRC_MODE_PULSE)
|
||||
#define LIRC_CAN_REC_MODE2 LIRC_MODE2REC(LIRC_MODE_MODE2)
|
||||
#define LIRC_CAN_REC_SCANCODE LIRC_MODE2REC(LIRC_MODE_SCANCODE)
|
||||
#define LIRC_CAN_REC_LIRCCODE LIRC_MODE2REC(LIRC_MODE_LIRCCODE)
|
||||
|
||||
#define LIRC_CAN_REC_MASK LIRC_MODE2REC(LIRC_CAN_SEND_MASK)
|
||||
|
||||
#define LIRC_CAN_SET_REC_CARRIER (LIRC_CAN_SET_SEND_CARRIER << 16)
|
||||
#define LIRC_CAN_SET_REC_DUTY_CYCLE (LIRC_CAN_SET_SEND_DUTY_CYCLE << 16)
|
||||
|
||||
#define LIRC_CAN_SET_REC_DUTY_CYCLE_RANGE 0x40000000
|
||||
#define LIRC_CAN_SET_REC_CARRIER_RANGE 0x80000000
|
||||
#define LIRC_CAN_GET_REC_RESOLUTION 0x20000000
|
||||
#define LIRC_CAN_SET_REC_TIMEOUT 0x10000000
|
||||
#define LIRC_CAN_SET_REC_FILTER 0x08000000
|
||||
|
||||
#define LIRC_CAN_MEASURE_CARRIER 0x02000000
|
||||
#define LIRC_CAN_USE_WIDEBAND_RECEIVER 0x04000000
|
||||
|
||||
#define LIRC_CAN_SEND(x) ((x)&LIRC_CAN_SEND_MASK)
|
||||
#define LIRC_CAN_REC(x) ((x)&LIRC_CAN_REC_MASK)
|
||||
|
||||
#define LIRC_CAN_NOTIFY_DECODE 0x01000000
|
||||
|
||||
/*** IOCTL commands for lirc driver ***/
|
||||
|
||||
#define LIRC_GET_FEATURES _IOR('i', 0x00000000, __u32)
|
||||
|
||||
#define LIRC_GET_SEND_MODE _IOR('i', 0x00000001, __u32)
|
||||
#define LIRC_GET_REC_MODE _IOR('i', 0x00000002, __u32)
|
||||
#define LIRC_GET_REC_RESOLUTION _IOR('i', 0x00000007, __u32)
|
||||
|
||||
#define LIRC_GET_MIN_TIMEOUT _IOR('i', 0x00000008, __u32)
|
||||
#define LIRC_GET_MAX_TIMEOUT _IOR('i', 0x00000009, __u32)
|
||||
|
||||
/* code length in bits, currently only for LIRC_MODE_LIRCCODE */
|
||||
#define LIRC_GET_LENGTH _IOR('i', 0x0000000f, __u32)
|
||||
|
||||
#define LIRC_SET_SEND_MODE _IOW('i', 0x00000011, __u32)
|
||||
#define LIRC_SET_REC_MODE _IOW('i', 0x00000012, __u32)
|
||||
/* Note: these can reset the according pulse_width */
|
||||
#define LIRC_SET_SEND_CARRIER _IOW('i', 0x00000013, __u32)
|
||||
#define LIRC_SET_REC_CARRIER _IOW('i', 0x00000014, __u32)
|
||||
#define LIRC_SET_SEND_DUTY_CYCLE _IOW('i', 0x00000015, __u32)
|
||||
#define LIRC_SET_TRANSMITTER_MASK _IOW('i', 0x00000017, __u32)
|
||||
|
||||
/*
|
||||
* when a timeout != 0 is set the driver will send a
|
||||
* LIRC_MODE2_TIMEOUT data packet, otherwise LIRC_MODE2_TIMEOUT is
|
||||
* never sent, timeout is disabled by default
|
||||
*/
|
||||
#define LIRC_SET_REC_TIMEOUT _IOW('i', 0x00000018, __u32)
|
||||
|
||||
/* 1 enables, 0 disables timeout reports in MODE2 */
|
||||
#define LIRC_SET_REC_TIMEOUT_REPORTS _IOW('i', 0x00000019, __u32)
|
||||
|
||||
/*
|
||||
* if enabled from the next key press on the driver will send
|
||||
* LIRC_MODE2_FREQUENCY packets
|
||||
*/
|
||||
#define LIRC_SET_MEASURE_CARRIER_MODE _IOW('i', 0x0000001d, __u32)
|
||||
|
||||
/*
|
||||
* to set a range use LIRC_SET_REC_CARRIER_RANGE with the
|
||||
* lower bound first and later LIRC_SET_REC_CARRIER with the upper bound
|
||||
*/
|
||||
#define LIRC_SET_REC_CARRIER_RANGE _IOW('i', 0x0000001f, __u32)
|
||||
|
||||
#define LIRC_SET_WIDEBAND_RECEIVER _IOW('i', 0x00000023, __u32)
|
||||
|
||||
/*
|
||||
* struct lirc_scancode - decoded scancode with protocol for use with
|
||||
* LIRC_MODE_SCANCODE
|
||||
*
|
||||
* @timestamp: Timestamp in nanoseconds using CLOCK_MONOTONIC when IR
|
||||
* was decoded.
|
||||
* @flags: should be 0 for transmit. When receiving scancodes,
|
||||
* LIRC_SCANCODE_FLAG_TOGGLE or LIRC_SCANCODE_FLAG_REPEAT can be set
|
||||
* depending on the protocol
|
||||
* @rc_proto: see enum rc_proto
|
||||
* @keycode: the translated keycode. Set to 0 for transmit.
|
||||
* @scancode: the scancode received or to be sent
|
||||
*/
|
||||
struct lirc_scancode {
|
||||
__u64 timestamp;
|
||||
__u16 flags;
|
||||
__u16 rc_proto;
|
||||
__u32 keycode;
|
||||
__u64 scancode;
|
||||
};
|
||||
|
||||
/* Set if the toggle bit of rc-5 or rc-6 is enabled */
|
||||
#define LIRC_SCANCODE_FLAG_TOGGLE 1
|
||||
/* Set if this is a nec or sanyo repeat */
|
||||
#define LIRC_SCANCODE_FLAG_REPEAT 2
|
||||
|
||||
/**
|
||||
* enum rc_proto - the Remote Controller protocol
|
||||
*
|
||||
* @RC_PROTO_UNKNOWN: Protocol not known
|
||||
* @RC_PROTO_OTHER: Protocol known but proprietary
|
||||
* @RC_PROTO_RC5: Philips RC5 protocol
|
||||
* @RC_PROTO_RC5X_20: Philips RC5x 20 bit protocol
|
||||
* @RC_PROTO_RC5_SZ: StreamZap variant of RC5
|
||||
* @RC_PROTO_JVC: JVC protocol
|
||||
* @RC_PROTO_SONY12: Sony 12 bit protocol
|
||||
* @RC_PROTO_SONY15: Sony 15 bit protocol
|
||||
* @RC_PROTO_SONY20: Sony 20 bit protocol
|
||||
* @RC_PROTO_NEC: NEC protocol
|
||||
* @RC_PROTO_NECX: Extended NEC protocol
|
||||
* @RC_PROTO_NEC32: NEC 32 bit protocol
|
||||
* @RC_PROTO_SANYO: Sanyo protocol
|
||||
* @RC_PROTO_MCIR2_KBD: RC6-ish MCE keyboard
|
||||
* @RC_PROTO_MCIR2_MSE: RC6-ish MCE mouse
|
||||
* @RC_PROTO_RC6_0: Philips RC6-0-16 protocol
|
||||
* @RC_PROTO_RC6_6A_20: Philips RC6-6A-20 protocol
|
||||
* @RC_PROTO_RC6_6A_24: Philips RC6-6A-24 protocol
|
||||
* @RC_PROTO_RC6_6A_32: Philips RC6-6A-32 protocol
|
||||
* @RC_PROTO_RC6_MCE: MCE (Philips RC6-6A-32 subtype) protocol
|
||||
* @RC_PROTO_SHARP: Sharp protocol
|
||||
* @RC_PROTO_XMP: XMP protocol
|
||||
* @RC_PROTO_CEC: CEC protocol
|
||||
* @RC_PROTO_IMON: iMon Pad protocol
|
||||
*/
|
||||
enum rc_proto {
|
||||
RC_PROTO_UNKNOWN = 0,
|
||||
RC_PROTO_OTHER = 1,
|
||||
RC_PROTO_RC5 = 2,
|
||||
RC_PROTO_RC5X_20 = 3,
|
||||
RC_PROTO_RC5_SZ = 4,
|
||||
RC_PROTO_JVC = 5,
|
||||
RC_PROTO_SONY12 = 6,
|
||||
RC_PROTO_SONY15 = 7,
|
||||
RC_PROTO_SONY20 = 8,
|
||||
RC_PROTO_NEC = 9,
|
||||
RC_PROTO_NECX = 10,
|
||||
RC_PROTO_NEC32 = 11,
|
||||
RC_PROTO_SANYO = 12,
|
||||
RC_PROTO_MCIR2_KBD = 13,
|
||||
RC_PROTO_MCIR2_MSE = 14,
|
||||
RC_PROTO_RC6_0 = 15,
|
||||
RC_PROTO_RC6_6A_20 = 16,
|
||||
RC_PROTO_RC6_6A_24 = 17,
|
||||
RC_PROTO_RC6_6A_32 = 18,
|
||||
RC_PROTO_RC6_MCE = 19,
|
||||
RC_PROTO_SHARP = 20,
|
||||
RC_PROTO_XMP = 21,
|
||||
RC_PROTO_CEC = 22,
|
||||
RC_PROTO_IMON = 23,
|
||||
};
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user