diff options
| author |   David S. Miller <davem@davemloft.net> | 2020-01-23 08:10:16 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-23 08:10:16 +0100 |
| commit | 954b3c4397792c8614aa4aaf25030ae87ece8307 (patch) | |
| tree | b2648c3d97fe2332863d7baac069c23cab0addc4 /tools/testing/selftests | |
| parent | net: convert additional drivers to use phy_do_ioctl (diff) | |
| parent | Merge branch 'bpf_cubic' (diff) | |
| download | linux-dev-954b3c4397792c8614aa4aaf25030ae87ece8307.tar.xz linux-dev-954b3c4397792c8614aa4aaf25030ae87ece8307.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2020-01-22
The following pull-request contains BPF updates for your *net-next* tree.
We've added 92 non-merge commits during the last 16 day(s) which contain
a total of 320 files changed, 7532 insertions(+), 1448 deletions(-).
The main changes are:
1) function by function verification and program extensions from Alexei.
2) massive cleanup of selftests/bpf from Toke and Andrii.
3) batched bpf map operations from Brian and Yonghong.
4) tcp congestion control in bpf from Martin.
5) bulking for non-map xdp_redirect form Toke.
6) bpf_send_signal_thread helper from Yonghong.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/selftests')
145 files changed, 2721 insertions, 451 deletions
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore index 301ac12d5d69..ec464859c6b6 100644 --- a/tools/testing/selftests/bpf/.gitignore +++ b/tools/testing/selftests/bpf/.gitignore @@ -22,17 +22,13 @@ get_cgroup_id_user test_skb_cgroup_id_user test_socket_cookie test_cgroup_storage -test_select_reuseport test_flow_dissector flow_dissector_load test_netcnt -test_section_names test_tcpnotify_user test_libbpf test_tcp_check_syncookie_user test_sysctl -libbpf.pc -libbpf.so.* test_hashmap test_btf_dump xdping @@ -41,4 +37,4 @@ test_cpp /no_alu32 /bpf_gcc /tools -bpf_helper_defs.h + diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index f1f949cd8ed9..5f41f5bd8033 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -20,8 +20,8 @@ CLANG ?= clang LLC ?= llc LLVM_OBJCOPY ?= llvm-objcopy BPF_GCC ?= $(shell command -v bpf-gcc;) -CFLAGS += -g -Wall -O2 $(GENFLAGS) -I$(APIDIR) -I$(LIBDIR) -I$(BPFDIR) \ - -I$(GENDIR) -I$(TOOLSINCDIR) -I$(CURDIR) \ +CFLAGS += -g -Wall -O2 $(GENFLAGS) -I$(CURDIR) -I$(APIDIR) \ + -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) -I$(TOOLSINCDIR) \ -Dbpf_prog_load=bpf_prog_test_load \ -Dbpf_load_program=bpf_test_load_program LDLIBS += -lcap -lelf -lz -lrt -lpthread @@ -73,7 +73,7 @@ TEST_PROGS_EXTENDED := with_addr.sh \ # Compile but not part of 'make run_tests' TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \ - test_lirc_mode2_user xdping test_cpp + test_lirc_mode2_user xdping test_cpp runqslower TEST_CUSTOM_PROGS = urandom_read @@ -83,20 +83,29 @@ TEST_CUSTOM_PROGS = urandom_read # $3 - target (assumed to be file); only file name will be emitted; # $4 - optional extra arg, emitted as-is, if provided. ifeq ($(V),1) +Q = msg = else -msg = @$(info $(1)$(if $(2), [$(2)]) $(notdir $(3)))$(if $(4), $(4)) +Q = @ +msg = @printf ' %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))"; +MAKEFLAGS += --no-print-directory +submake_extras := feature_display=0 endif # override lib.mk's default rules OVERRIDE_TARGETS := 1 override define CLEAN - $(call msg, CLEAN) + $(call msg,CLEAN) $(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN) endef include ../lib.mk +SCRATCH_DIR := $(OUTPUT)/tools +BUILD_DIR := $(SCRATCH_DIR)/build +INCLUDE_DIR := $(SCRATCH_DIR)/include +BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a + # Define simple and short `make test_progs`, `make test_sysctl`, etc targets # to build individual tests. # NOTE: Semicolon at the end is critical to override lib.mk's default static @@ -108,18 +117,25 @@ $(notdir $(TEST_GEN_PROGS) \ $(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ; $(OUTPUT)/%:%.c - $(call msg, BINARY,,$@) + $(call msg,BINARY,,$@) $(LINK.c) $^ $(LDLIBS) -o $@ $(OUTPUT)/urandom_read: urandom_read.c - $(call msg, BINARY,,$@) - $(CC) -o $@ $< -Wl,--build-id + $(call msg,BINARY,,$@) + $(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id -$(OUTPUT)/test_stub.o: test_stub.c - $(call msg, CC,,$@) +$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ) + $(call msg,CC,,$@) $(CC) -c $(CFLAGS) -o $@ $< -BPFOBJ := $(OUTPUT)/libbpf.a +VMLINUX_BTF_PATHS := $(abspath ../../../../vmlinux) \ + /sys/kernel/btf/vmlinux \ + /boot/vmlinux-$(shell uname -r) +VMLINUX_BTF:= $(firstword $(wildcard $(VMLINUX_BTF_PATHS))) +$(OUTPUT)/runqslower: $(BPFOBJ) + $(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \ + OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \ + BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/test_stub.o $(BPFOBJ) @@ -137,23 +153,22 @@ $(OUTPUT)/test_netcnt: cgroup_helpers.c $(OUTPUT)/test_sock_fields: cgroup_helpers.c $(OUTPUT)/test_sysctl: cgroup_helpers.c -.PHONY: force - -# force a rebuild of BPFOBJ when its dependencies are updated -force: - -DEFAULT_BPFTOOL := $(OUTPUT)/tools/usr/local/sbin/bpftool +DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool BPFTOOL ?= $(DEFAULT_BPFTOOL) +$(DEFAULT_BPFTOOL): $(BPFOBJ) | $(BUILD_DIR)/bpftool + $(Q)$(MAKE) $(submake_extras) -C $(BPFTOOLDIR) \ + OUTPUT=$(BUILD_DIR)/bpftool/ \ + prefix= DESTDIR=$(SCRATCH_DIR)/ install -$(DEFAULT_BPFTOOL): force - $(MAKE) -C $(BPFTOOLDIR) DESTDIR=$(OUTPUT)/tools install - -$(BPFOBJ): force - $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ +$(BPFOBJ): $(wildcard $(BPFDIR)/*.c $(BPFDIR)/*.h $(BPFDIR)/Makefile) \ + ../../../include/uapi/linux/bpf.h \ + | $(INCLUDE_DIR) $(BUILD_DIR)/libbpf + $(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \ + DESTDIR=$(SCRATCH_DIR) prefix= all install_headers -BPF_HELPERS := $(OUTPUT)/bpf_helper_defs.h $(wildcard $(BPFDIR)/bpf_*.h) -$(OUTPUT)/bpf_helper_defs.h: - $(MAKE) -C $(BPFDIR) OUTPUT=$(OUTPUT)/ $(OUTPUT)/bpf_helper_defs.h +$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(INCLUDE_DIR): + $(call msg,MKDIR,,$@) + mkdir -p $@ # Get Clang's default includes on this system, as opposed to those seen by # '-target bpf'. This fixes "missing" files on some architectures/distros, @@ -173,8 +188,8 @@ MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG)) BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ - -I. -I./include/uapi -I$(APIDIR) \ - -I$(BPFDIR) -I$(abspath $(OUTPUT)/../usr/include) + -I$(INCLUDE_DIR) -I$(CURDIR) -I$(CURDIR)/include/uapi \ + -I$(APIDIR) -I$(abspath $(OUTPUT)/../usr/include) CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ -Wno-compare-distinct-pointer-types @@ -190,28 +205,28 @@ $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h # $3 - CFLAGS # $4 - LDFLAGS define CLANG_BPF_BUILD_RULE - $(call msg, CLANG-LLC,$(TRUNNER_BINARY),$2) + $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2) ($(CLANG) $3 -O2 -target bpf -emit-llvm \ -c $1 -o - || echo "BPF obj compilation failed") | \ $(LLC) -mattr=dwarfris -march=bpf -mcpu=probe $4 -filetype=obj -o $2 endef # Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32 define CLANG_NOALU32_BPF_BUILD_RULE - $(call msg, CLANG-LLC,$(TRUNNER_BINARY),$2) + $(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2) ($(CLANG) $3 -O2 -target bpf -emit-llvm \ -c $1 -o - || echo "BPF obj compilation failed") | \ $(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2 endef # Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC define CLANG_NATIVE_BPF_BUILD_RULE - $(call msg, CLANG-BPF,$(TRUNNER_BINARY),$2) + $(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2) ($(CLANG) $3 -O2 -emit-llvm \ -c $1 -o - || echo "BPF obj compilation failed") | \ $(LLC) -march=bpf -mcpu=probe $4 -filetype=obj -o $2 endef # Build BPF object using GCC define GCC_BPF_BUILD_RULE - $(call msg, GCC-BPF,$(TRUNNER_BINARY),$2) + $(call msg,GCC-BPF,$(TRUNNER_BINARY),$2) $(BPF_GCC) $3 $4 -O2 -c $1 -o $2 endef @@ -252,6 +267,7 @@ define DEFINE_TEST_RUNNER_RULES ifeq ($($(TRUNNER_OUTPUT)-dir),) $(TRUNNER_OUTPUT)-dir := y $(TRUNNER_OUTPUT): + $$(call msg,MKDIR,,$$@) mkdir -p $$@ endif @@ -262,7 +278,7 @@ $(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \ $(TRUNNER_BPF_PROGS_DIR)/%.c \ $(TRUNNER_BPF_PROGS_DIR)/*.h \ - $$(BPF_HELPERS) | $(TRUNNER_OUTPUT) + $$(BPFOBJ) | $(TRUNNER_OUTPUT) $$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@, \ $(TRUNNER_BPF_CFLAGS), \ $(TRUNNER_BPF_LDFLAGS)) @@ -270,7 +286,7 @@ $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o: \ $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \ $(TRUNNER_OUTPUT)/%.o \ | $(BPFTOOL) $(TRUNNER_OUTPUT) - $$(call msg, GEN-SKEL,$(TRUNNER_BINARY),$$@) + $$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@) $$(BPFTOOL) gen skeleton $$< > $$@ endif @@ -278,7 +294,7 @@ endif ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),) $(TRUNNER_TESTS_DIR)-tests-hdr := y $(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c - $$(call msg, TEST-HDR,$(TRUNNER_BINARY),$$@) + $$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@) $$(shell ( cd $(TRUNNER_TESTS_DIR); \ echo '/* Generated header, do not edit */'; \ ls *.c 2> /dev/null | \ @@ -294,7 +310,7 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \ $(TRUNNER_BPF_OBJS) \ $(TRUNNER_BPF_SKELS) \ $$(BPFOBJ) | $(TRUNNER_OUTPUT) - $$(call msg, TEST-OBJ,$(TRUNNER_BINARY),$$@) + $$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@) cd $$(@D) && $$(CC) $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F) $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ @@ -302,20 +318,20 @@ $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \ $(TRUNNER_EXTRA_HDRS) \ $(TRUNNER_TESTS_HDR) \ $$(BPFOBJ) | $(TRUNNER_OUTPUT) - $$(call msg, EXTRA-OBJ,$(TRUNNER_BINARY),$$@) + $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@) $$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@ # only copy extra resources if in flavored build $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT) ifneq ($2,) - $$(call msg, EXTRAS-CP,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) + $$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES)) cp -a $$^ $(TRUNNER_OUTPUT)/ endif $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \ $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ) \ | $(TRUNNER_BINARY)-extras - $$(call msg, BINARY,,$$@) + $$(call msg,BINARY,,$$@) $$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@ endef @@ -328,7 +344,7 @@ TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c \ TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read \ $(wildcard progs/btf_dump_test_case_*.c) TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE -TRUNNER_BPF_CFLAGS := -I. -I$(OUTPUT) $(BPF_CFLAGS) $(CLANG_CFLAGS) +TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) TRUNNER_BPF_LDFLAGS := -mattr=+alu32 $(eval $(call DEFINE_TEST_RUNNER,test_progs)) @@ -367,15 +383,15 @@ verifier/tests.h: verifier/*.c echo '#endif' \ ) > verifier/tests.h) $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) - $(call msg, BINARY,,$@) + $(call msg,BINARY,,$@) $(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ # Make sure we are able to include and link libbpf against c++. $(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ) - $(call msg, CXX,,$@) + $(call msg,CXX,,$@) $(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@ -EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) \ +EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) \ prog_tests/tests.h map_tests/tests.h verifier/tests.h \ - feature $(OUTPUT)/*.o $(OUTPUT)/no_alu32 $(OUTPUT)/bpf_gcc \ - tools *.skel.h + feature \ + $(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc) diff --git a/tools/testing/selftests/bpf/bpf_tcp_helpers.h b/tools/testing/selftests/bpf/bpf_tcp_helpers.h new file mode 100644 index 000000000000..8f21965ffc6c --- /dev/null +++ b/tools/testing/selftests/bpf/bpf_tcp_helpers.h @@ -0,0 +1,235 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __BPF_TCP_HELPERS_H +#define __BPF_TCP_HELPERS_H + +#include <stdbool.h> +#include <linux/types.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> +#include "bpf_trace_helpers.h" + +#define BPF_STRUCT_OPS(name, args...) \ +SEC("struct_ops/"#name) \ +BPF_PROG(name, args) + +#define tcp_jiffies32 ((__u32)bpf_jiffies64()) + +struct sock_common { + unsigned char skc_state; +} __attribute__((preserve_access_index)); + +enum sk_pacing { + SK_PACING_NONE = 0, + SK_PACING_NEEDED = 1, + SK_PACING_FQ = 2, +}; + +struct sock { + struct sock_common __sk_common; + unsigned long sk_pacing_rate; + __u32 sk_pacing_status; /* see enum sk_pacing */ +} __attribute__((preserve_access_index)); + +struct inet_sock { + struct sock sk; +} __attribute__((preserve_access_index)); + +struct inet_connection_sock { + struct inet_sock icsk_inet; + __u8 icsk_ca_state:6, + icsk_ca_setsockopt:1, + icsk_ca_dst_locked:1; + struct { + __u8 pending; + } icsk_ack; + __u64 icsk_ca_priv[104 / sizeof(__u64)]; +} __attribute__((preserve_access_index)); + +struct tcp_sock { + struct inet_connection_sock inet_conn; + + __u32 rcv_nxt; + __u32 snd_nxt; + __u32 snd_una; + __u8 ecn_flags; + __u32 delivered; + __u32 delivered_ce; + __u32 snd_cwnd; + __u32 snd_cwnd_cnt; + __u32 snd_cwnd_clamp; + __u32 snd_ssthresh; + __u8 syn_data:1, /* SYN includes data */ + syn_fastopen:1, /* SYN includes Fast Open option */ + syn_fastopen_exp:1,/* SYN includes Fast Open exp. option */ + syn_fastopen_ch:1, /* Active TFO re-enabling probe */ + syn_data_acked:1,/* data in SYN is acked by SYN-ACK */ + save_syn:1, /* Save headers of SYN packet */ + is_cwnd_limited:1,/* forward progress limited by snd_cwnd? */ + syn_smc:1; /* SYN includes SMC */ + __u32 max_packets_out; + __u32 lsndtime; + __u32 prior_cwnd; + __u64 tcp_mstamp; /* most recent packet received/sent */ +} __attribute__((preserve_access_index)); + +static __always_inline struct inet_connection_sock *inet_csk(const struct sock *sk) +{ + return (struct inet_connection_sock *)sk; +} + +static __always_inline void *inet_csk_ca(const struct sock *sk) +{ + return (void *)inet_csk(sk)->icsk_ca_priv; +} + +static __always_inline struct tcp_sock *tcp_sk(const struct sock *sk) +{ + return (struct tcp_sock *)sk; +} + +static __always_inline bool before(__u32 seq1, __u32 seq2) +{ + return (__s32)(seq1-seq2) < 0; +} +#define after(seq2, seq1) before(seq1, seq2) + +#define TCP_ECN_OK 1 +#define TCP_ECN_QUEUE_CWR 2 +#define TCP_ECN_DEMAND_CWR 4 +#define TCP_ECN_SEEN 8 + +enum inet_csk_ack_state_t { + ICSK_ACK_SCHED = 1, + ICSK_ACK_TIMER = 2, + ICSK_ACK_PUSHED = 4, + ICSK_ACK_PUSHED2 = 8, + ICSK_ACK_NOW = 16 /* Send the next ACK immediately (once) */ +}; + +enum tcp_ca_event { + CA_EVENT_TX_START = 0, + CA_EVENT_CWND_RESTART = 1, + CA_EVENT_COMPLETE_CWR = 2, + CA_EVENT_LOSS = 3, + CA_EVENT_ECN_NO_CE = 4, + CA_EVENT_ECN_IS_CE = 5, +}; + +enum tcp_ca_state { + TCP_CA_Open = 0, + TCP_CA_Disorder = 1, + TCP_CA_CWR = 2, + TCP_CA_Recovery = 3, + TCP_CA_Loss = 4 +}; + +struct ack_sample { + __u32 pkts_acked; + __s32 rtt_us; + __u32 in_flight; +} __attribute__((preserve_access_index)); + +struct rate_sample { + __u64 prior_mstamp; /* starting timestamp for interval */ + __u32 prior_delivered; /* tp->delivered at "prior_mstamp" */ + __s32 delivered; /* number of packets delivered over interval */ + long interval_us; /* time for tp->delivered to incr "delivered" */ + __u32 snd_interval_us; /* snd interval for delivered packets */ + __u32 rcv_interval_us; /* rcv interval for delivered packets */ + long rtt_us; /* RTT of last (S)ACKed packet (or -1) */ + int losses; /* number of packets marked lost upon ACK */ + __u32 acked_sacked; /* number of packets newly (S)ACKed upon ACK */ + __u32 prior_in_flight; /* in flight before this ACK */ + bool is_app_limited; /* is sample from packet with bubble in pipe? */ + bool is_retrans; /* is sample from retransmission? */ + bool is_ack_delayed; /* is this (likely) a delayed ACK? */ +} __attribute__((preserve_access_index)); + +#define TCP_CA_NAME_MAX 16 +#define TCP_CONG_NEEDS_ECN 0x2 + +struct tcp_congestion_ops { + char name[TCP_CA_NAME_MAX]; + __u32 flags; + + /* initialize private data (optional) */ + void (*init)(struct sock *sk); + /* cleanup private data (optional) */ + void (*release)(struct sock *sk); + + /* return slow start threshold (required) */ + __u32 (*ssthresh)(struct sock *sk); + /* do new cwnd calculation (required) */ + void (*cong_avoid)(struct sock *sk, __u32 ack, __u32 acked); + /* call before changing ca_state (optional) */ + void (*set_state)(struct sock *sk, __u8 new_state); + /* call when cwnd event occurs (optional) */ + void (*cwnd_event)(struct sock *sk, enum tcp_ca_event ev); + /* call when ack arrives (optional) */ + void (*in_ack_event)(struct sock *sk, __u32 flags); + /* new value of cwnd after loss (required) */ + __u32 (*undo_cwnd)(struct sock *sk); + /* hook for packet ack accounting (optional) */ + void (*pkts_acked)(struct sock *sk, const struct ack_sample *sample); + /* override sysctl_tcp_min_tso_segs */ + __u32 (*min_tso_segs)(struct sock *sk); + /* returns the multiplier used in tcp_sndbuf_expand (optional) */ + __u32 (*sndbuf_expand)(struct sock *sk); + /* call when packets are delivered to update cwnd and pacing rate, + * after all the ca_state processing. (optional) + */ + void (*cong_control)(struct sock *sk, const struct rate_sample *rs); +}; + +#define min(a, b) ((a) < (b) ? (a) : (b)) +#define max(a, b) ((a) > (b) ? (a) : (b)) +#define min_not_zero(x, y) ({ \ + typeof(x) __x = (x); \ + typeof(y) __y = (y); \ + __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); }) + +static __always_inline __u32 tcp_slow_start(struct tcp_sock *tp, __u32 acked) +{ + __u32 cwnd = min(tp->snd_cwnd + acked, tp->snd_ssthresh); + + acked -= cwnd - tp->snd_cwnd; + tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp); + + return acked; +} + +static __always_inline bool tcp_in_slow_start(const struct tcp_sock *tp) +{ + return tp->snd_cwnd < tp->snd_ssthresh; +} + +static __always_inline bool tcp_is_cwnd_limited(const struct sock *sk) +{ + const struct tcp_sock *tp = tcp_sk(sk); + + /* If in slow start, ensure cwnd grows to twice what was ACKed. */ + if (tcp_in_slow_start(tp)) + return tp->snd_cwnd < 2 * tp->max_packets_out; + + return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited); +} + +static __always_inline void tcp_cong_avoid_ai(struct tcp_sock *tp, __u32 w, __u32 acked) +{ + /* If credits accumulated at a higher w, apply them gently now. */ + if (tp->snd_cwnd_cnt >= w) { + tp->snd_cwnd_cnt = 0; + tp->snd_cwnd++; + } + + tp->snd_cwnd_cnt += acked; + if (tp->snd_cwnd_cnt >= w) { + __u32 delta = tp->snd_cwnd_cnt / w; + + tp->snd_cwnd_cnt -= delta * w; + tp->snd_cwnd += delta; + } + tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_cwnd_clamp); +} + +#endif diff --git a/tools/testing/selftests/bpf/bpf_trace_helpers.h b/tools/testing/selftests/bpf/bpf_trace_helpers.h index c76a214a53b0..c6f1354d93fb 100644 --- a/tools/testing/selftests/bpf/bpf_trace_helpers.h +++ b/tools/testing/selftests/bpf/bpf_trace_helpers.h @@ -1,58 +1,120 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ #ifndef __BPF_TRACE_HELPERS_H #define __BPF_TRACE_HELPERS_H -#include "bpf_helpers.h" - -#define __BPF_MAP_0(i, m, v, ...) v -#define __BPF_MAP_1(i, m, v, t, a, ...) m(t, a, ctx[i]) -#define __BPF_MAP_2(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_1(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_3(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_2(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_4(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_3(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_5(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_4(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_6(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_5(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_7(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_6(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_8(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_7(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_9(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_8(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_10(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_9(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_11(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_10(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP_12(i, m, v, t, a, ...) m(t, a, ctx[i]), __BPF_MAP_11(i+1, m, v, __VA_ARGS__) -#define __BPF_MAP(n, ...) __BPF_MAP_##n(0, __VA_ARGS__) - -/* BPF sizeof(void *) is always 8, so no need to cast to long first - * for ptr to avoid compiler warning. +#include <bpf/bpf_helpers.h> + +#define ___bpf_concat(a, b) a ## b +#define ___bpf_apply(fn, n) ___bpf_concat(fn, n) +#define ___bpf_nth(_, _1, _2, _3, _4, _5, _6, _7, _8, _9, _a, _b, _c, N, ...) N +#define ___bpf_narg(...) \ + ___bpf_nth(_, ##__VA_ARGS__, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) +#define ___bpf_empty(...) \ + ___bpf_nth(_, ##__VA_ARGS__, N, N, N, N, N, N, N, N, N, N, 0) + +#define ___bpf_ctx_cast0() ctx +#define ___bpf_ctx_cast1(x) ___bpf_ctx_cast0(), (void *)ctx[0] +#define ___bpf_ctx_cast2(x, args...) ___bpf_ctx_cast1(args), (void *)ctx[1] +#define ___bpf_ctx_cast3(x, args...) ___bpf_ctx_cast2(args), (void *)ctx[2] +#define ___bpf_ctx_cast4(x, args...) ___bpf_ctx_cast3(args), (void *)ctx[3] +#define ___bpf_ctx_cast5(x, args...) ___bpf_ctx_cast4(args), (void *)ctx[4] +#define ___bpf_ctx_cast6(x, args...) ___bpf_ctx_cast5(args), (void *)ctx[5] +#define ___bpf_ctx_cast7(x, args...) ___bpf_ctx_cast6(args), (void *)ctx[6] +#define ___bpf_ctx_cast8(x, args...) ___bpf_ctx_cast7(args), (void *)ctx[7] +#define ___bpf_ctx_cast9(x, args...) ___bpf_ctx_cast8(args), (void *)ctx[8] +#define ___bpf_ctx_cast10(x, args...) ___bpf_ctx_cast9(args), (void *)ctx[9] +#define ___bpf_ctx_cast11(x, args...) ___bpf_ctx_cast10(args), (void *)ctx[10] +#define ___bpf_ctx_cast12(x, args...) ___bpf_ctx_cast11(args), (void *)ctx[11] +#define ___bpf_ctx_cast(args...) \ + ___bpf_apply(___bpf_ctx_cast, ___bpf_narg(args))(args) + +/* + * BPF_PROG is a convenience wrapper for generic tp_btf/fentry/fexit and + * similar kinds of BPF programs, that accept input arguments as a single + * pointer to untyped u64 array, where each u64 can actually be a typed + * pointer or integer of different size. Instead of requring user to write + * manual casts and work with array elements by index, BPF_PROG macro + * allows user to declare a list of named and typed input arguments in the + * same syntax as for normal C function. All the casting is hidden and + * performed transparently, while user code can just assume working with + * function arguments of specified type and name. + * + * Original raw context argument is preserved as well as 'ctx' argument. + * This is useful when using BPF helpers that expect original context + * as one of the parameters (e.g., for bpf_perf_event_output()). */ -#define __BPF_CAST(t, a, ctx) (t) ctx -#define __BPF_V void -#define __BPF_N - -#define __BPF_DECL_ARGS(t, a, ctx) t a - -#define BPF_TRACE_x(x, sec_name, fname, ret_type, ...) \ -static __always_inline ret_type \ -____##fname(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \ - \ -SEC(sec_name) \ -ret_type fname(__u64 *ctx) \ -{ \ - return ____##fname(__BPF_MAP(x, __BPF_CAST, __BPF_N, __VA_ARGS__));\ -} \ - \ -static __always_inline \ -ret_type ____##fname(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)) - -#define BPF_TRACE_0(sec, fname, ...) BPF_TRACE_x(0, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_1(sec, fname, ...) BPF_TRACE_x(1, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_2(sec, fname, ...) BPF_TRACE_x(2, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_3(sec, fname, ...) BPF_TRACE_x(3, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_4(sec, fname, ...) BPF_TRACE_x(4, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_5(sec, fname, ...) BPF_TRACE_x(5, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_6(sec, fname, ...) BPF_TRACE_x(6, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_7(sec, fname, ...) BPF_TRACE_x(7, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_8(sec, fname, ...) BPF_TRACE_x(8, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_9(sec, fname, ...) BPF_TRACE_x(9, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_10(sec, fname, ...) BPF_TRACE_x(10, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_11(sec, fname, ...) BPF_TRACE_x(11, sec, fname, int, __VA_ARGS__) -#define BPF_TRACE_12(sec, fname, ...) BPF_TRACE_x(12, sec, fname, int, __VA_ARGS__) +#define BPF_PROG(name, args...) \ +name(unsigned long long *ctx); \ +static __always_inline typeof(name(0)) \ +____##name(unsigned long long *ctx, ##args); \ +typeof(name(0)) name(unsigned long long *ctx) \ +{ \ + _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \ + return ____##name(___bpf_ctx_cast(args)); \ + _Pragma("GCC diagnostic pop") \ +} \ +static __always_inline typeof(name(0)) \ +____##name(unsigned long long *ctx, ##args) + +struct pt_regs; + +#define ___bpf_kprobe_args0() ctx +#define ___bpf_kprobe_args1(x) \ + ___bpf_kprobe_args0(), (void *)PT_REGS_PARM1(ctx) +#define ___bpf_kprobe_args2(x, args...) \ + ___bpf_kprobe_args1(args), (void *)PT_REGS_PARM2(ctx) +#define ___bpf_kprobe_args3(x, args...) \ + ___bpf_kprobe_args2(args), (void *)PT_REGS_PARM3(ctx) +#define ___bpf_kprobe_args4(x, args...) \ + ___bpf_kprobe_args3(args), (void *)PT_REGS_PARM4(ctx) +#define ___bpf_kprobe_args5(x, args...) \ + ___bpf_kprobe_args4(args), (void *)PT_REGS_PARM5(ctx) +#define ___bpf_kprobe_args(args...) \ + ___bpf_apply(___bpf_kprobe_args, ___bpf_narg(args))(args) +/* + * BPF_KPROBE serves the same purpose for kprobes as BPF_PROG for + * tp_btf/fentry/fexit BPF programs. It hides the underlying platform-specific + * low-level way of getting kprobe input arguments from struct pt_regs, and + * provides a familiar typed and named function arguments syntax and + * semantics of accessing kprobe input paremeters. + * + * Original struct pt_regs* context is preserved as 'ctx' argument. This might + * be necessary when using BPF helpers like bpf_perf_event_output(). + */ +#define BPF_KPROBE(name, args...) \ +name(struct pt_regs *ctx); \ +static __always_inline typeof(name(0)) ____##name(struct pt_regs *ctx, ##args);\ +typeof(name(0)) name(struct pt_regs *ctx) \ +{ \ + _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \ + return ____##name(___bpf_kprobe_args(args)); \ + _Pragma("GCC diagnostic pop") \ +} \ +static __always_inline typeof(name(0)) ____##name(struct pt_regs *ctx, ##args) + +#define ___bpf_kretprobe_args0() ctx +#define ___bpf_kretprobe_argsN(x, args...) \ + ___bpf_kprobe_args(args), (void *)PT_REGS_RET(ctx) +#define ___bpf_kretprobe_args(args...) \ + ___bpf_apply(___bpf_kretprobe_args, ___bpf_empty(args))(args) + +/* + * BPF_KRETPROBE is similar to BPF_KPROBE, except, in addition to listing all + * input kprobe arguments, one last extra argument has to be specified, which + * captures kprobe return value. + */ +#define BPF_KRETPROBE(name, args...) \ +name(struct pt_regs *ctx); \ +static __always_inline typeof(name(0)) ____##name(struct pt_regs *ctx, ##args);\ +typeof(name(0)) name(struct pt_regs *ctx) \ +{ \ + _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wint-conversion\"") \ + return ____##name(___bpf_kretprobe_args(args)); \ + _Pragma("GCC diagnostic pop") \ +} \ +static __always_inline typeof(name(0)) ____##name(struct pt_regs *ctx, ##args) #endif diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h index ec219f84e041..a3352a64c067 100644 --- a/tools/testing/selftests/bpf/bpf_util.h +++ b/tools/testing/selftests/bpf/bpf_util.h @@ -6,7 +6,7 @@ #include <stdlib.h> #include <string.h> #include <errno.h> -#include <libbpf.h> /* libbpf_num_possible_cpus */ +#include <bpf/libbpf.h> /* libbpf_num_possible_cpus */ static inline unsigned int bpf_num_possible_cpus(void) { diff --git a/tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c new file mode 100644 index 000000000000..f0a64d8ac59a --- /dev/null +++ b/tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c @@ -0,0 +1,129 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#include <bpf/bpf.h> +#include <bpf/libbpf.h> + +#include <test_maps.h> + +static void map_batch_update(int map_fd, __u32 max_entries, int *keys, + int *values) +{ + int i, err; + DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts, + .elem_flags = 0, + .flags = 0, + ); + + for (i = 0; i < max_entries; i++) { + keys[i] = i; + values[i] = i + 1; + } + + err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &opts); + CHECK(err, "bpf_map_update_batch()", "error:%s\n", strerror(errno)); +} + +static void map_batch_verify(int *visited, __u32 max_entries, + int *keys, int *values) +{ + int i; + + memset(visited, 0, max_entries * sizeof(*visited)); + for (i = 0; i < max_entries; i++) { + CHECK(keys[i] + 1 != values[i], "key/value checking", + "error: i %d key %d value %d\n", i, keys[i], values[i]); + visited[i] = 1; + } + for (i = 0; i < max_entries; i++) { + CHECK(visited[i] != 1, "visited checking", + "error: keys array at index %d missing\n", i); + } +} + +void test_array_map_batch_ops(void) +{ + struct bpf_create_map_attr xattr = { + .name = "array_map", + .map_type = BPF_MAP_TYPE_ARRAY, + .key_size = sizeof(int), + .value_size = sizeof(int), + }; + int map_fd, *keys, *values, *visited; + __u32 count, total, total_success; + const __u32 max_entries = 10; + bool nospace_err; + __u64 batch = 0; + int err, step; + DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts, + .elem_flags = 0, + .flags = 0, + ); + + xattr.max_entries = max_entries; + map_fd = bpf_create_map_xattr(&xattr); + CHECK(map_fd == -1, + "bpf_create_map_xattr()", "error:%s\n", strerror(errno)); + + keys = malloc(max_entries * sizeof(int)); + values = malloc(max_entries * sizeof(int)); + visited = malloc(max_entries * sizeof(int)); + CHECK(!keys || !values || !visited, "malloc()", "error:%s\n", + strerror(errno)); + + /* populate elements to the map */ + map_batch_update(map_fd, max_entries, keys, values); + + /* test 1: lookup in a loop with various steps. */ + total_success = 0; + for (step = 1; step < max_entries; step++) { + map_batch_update(map_fd, max_entries, keys, values); + map_batch_verify(visited, max_entries, keys, values); + memset(keys, 0, max_entries * sizeof(*keys)); + memset(values, 0, max_entries * sizeof(*values)); + batch = 0; + total = 0; + /* iteratively lookup/delete elements with 'step' + * elements each. + */ + count = step; + nospace_err = false; + while (true) { + err = bpf_map_lookup_batch(map_fd, + total ? &batch : NULL, &batch, + keys + total, + values + total, + &count, &opts); + + CHECK((err && errno != ENOENT), "lookup with steps", + "error: %s\n", strerror(errno)); + + total += count; + if (err) + break; + + } + + if (nospace_err == true) + continue; + + CHECK(total != max_entries, "lookup with steps", + "total = %u, max_entries = %u\n", total, max_entries); + + map_batch_verify(visited, max_entries, keys, values); + + total_success++; + } + + CHECK(total_success == 0, "check total_success", + "unexpected failure\n"); + + printf("%s:PASS\n", __func__); + + free(keys); + free(values); + free(visited); +} diff --git a/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c new file mode 100644 index 000000000000..976bf415fbdd --- /dev/null +++ b/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c @@ -0,0 +1,283 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2019 Facebook */ +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#include <bpf/bpf.h> +#include <bpf/libbpf.h> + +#include <bpf_util.h> +#include <test_maps.h> + +static void map_batch_update(int map_fd, __u32 max_entries, int *keys, + void *values, bool is_pcpu) +{ + typedef BPF_DECLARE_PERCPU(int, value); + value *v = NULL; + int i, j, err; + DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts, + .elem_flags = 0, + .flags = 0, + ); + + if (is_pcpu) + v = (value *)values; + + for (i = 0; i < max_entries; i++) { + keys[i] = i + 1; + if (is_pcpu) + for (j = 0; j < bpf_num_possible_cpus(); j++) + bpf_percpu(v[i], j) = i + 2 + j; + else + ((int *)values)[i] = i + 2; + } + + err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &opts); + CHECK(err, "bpf_map_update_batch()", "error:%s\n", strerror(errno)); +} + +static void map_batch_verify(int *visited, __u32 max_entries, + int *keys, void *values, bool is_pcpu) +{ + typedef BPF_DECLARE_PERCPU(int, value); + value *v = NULL; + int i, j; + + if (is_pcpu) + v = (value *)values; + + memset(visited, 0, max_entries * sizeof(*visited)); + for (i = 0; i < max_entries; i++) { + + if (is_pcpu) { + for (j = 0; j < bpf_num_possible_cpus(); j++) { + CHECK(keys[i] + 1 + j != bpf_percpu(v[i], j), + "key/value checking", + "error: i %d j %d key %d value %d\n", + i, j, keys[i], bpf_percpu(v[i], j)); + } + } else { + CHECK(keys[i] + 1 != ((int *)values)[i], + "key/value checking", + "error: i %d key %d value %d\n", i, keys[i], + ((int *)values)[i]); + } + + visited[i] = 1; + + } + for (i = 0; i < max_entries; i++) { + CHECK(visited[i] != 1, "visited checking", + "error: keys array at index %d missing\n", i); + } +} + +void __test_map_lookup_and_delete_batch(bool is_pcpu) +{ + __u32 batch, count, total, total_success; + typedef BPF_DECLARE_PERCPU(int, value); + int map_fd, *keys, *visited, key; + const __u32 max_entries = 10; + value pcpu_values[max_entries]; + int err, step, value_size; + bool nospace_err; + void *values; + struct bpf_create_map_attr xattr = { + .name = "hash_map", + .map_type = is_pcpu ? BPF_MAP_TYPE_PERCPU_HASH : + BPF_MAP_TYPE_HASH, + .key_size = sizeof(int), + .value_size = sizeof(int), + }; + DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts, + .elem_flags = 0, + .flags = 0, + ); + + xattr.max_entries = max_entries; + map_fd = bpf_create_map_xattr(&xattr); + CHECK(map_fd == -1, + "bpf_create_map_xattr()", "error:%s\n", strerror(errno)); + + value_size = is_pcpu ? sizeof(value) : sizeof(int); + keys = malloc(max_entries * sizeof(int)); + if (is_pcpu) + values = pcpu_values; + else + values = malloc(max_entries * sizeof(int)); + visited = malloc(max_entries * sizeof(int)); + CHECK(!keys || !values || !visited, "malloc()", + "error:%s\n", strerror(errno)); + + /* test 1: lookup/delete an empty hash table, -ENOENT */ + count = max_entries; + err = bpf_map_lookup_and_delete_batch(map_fd, NULL, &batch, keys, + values, &count, &opts); + CHECK((err && errno != ENOENT), "empty map", + "error: %s\n", strerror(errno)); + + /* populate elements to the map */ + map_batch_update(map_fd, max_entries, keys, values, is_pcpu); + + /* test 2: lookup/delete with count = 0, success */ + count = 0; + err = bpf_map_lookup_and_delete_batch(map_fd, NULL, &batch, keys, + values, &count, &opts); + CHECK(err, "count = 0", "error: %s\n", strerror(errno)); + + /* test 3: lookup/delete with count = max_entries, success */ + memset(keys, 0, max_entries * sizeof(*keys)); + memset(values, 0, max_entries * value_size); + count = max_entries; + err = bpf_map_lookup_and_delete_batch(map_fd, NULL, &batch, keys, + values, &count, &opts); + CHECK((err && errno != ENOENT), "count = max_entries", + "error: %s\n", strerror(errno)); + CHECK(count != max_entries, "count = max_entries", + "count = %u, max_entries = %u\n", count, max_entries); + map_batch_verify(visited, max_entries, keys, values, is_pcpu); + + /* bpf_map_get_next_key() should return -ENOENT for an empty map. */ + err = bpf_map_get_next_key(map_fd, NULL, &key); + CHECK(!err, "bpf_map_get_next_key()", "error: %s\n", strerror(errno)); + + /* test 4: lookup/delete in a loop with various steps. */ + total_success = 0; + for (step = 1; step < max_entries; step++) { + map_batch_update(map_fd, max_entries, keys, values, is_pcpu); + memset(keys, 0, max_entries * sizeof(*keys)); + memset(values, 0, max_entries * value_size); + total = 0; + /* iteratively lookup/delete elements with 'step' + * elements each + */ + count = step; + nospace_err = false; + while (true) { + err = bpf_map_lookup_batch(map_fd, + total ? &batch : NULL, + &batch, keys + total, + values + + total * value_size, + &count, &opts); + /* It is possible that we are failing due to buffer size + * not big enough. In such cases, let us just exit and + * go with large steps. Not that a buffer size with + * max_entries should always work. + */ + if (err && errno == ENOSPC) { + nospace_err = true; + break; + } + + CHECK((err && errno != ENOENT), "lookup with steps", + "error: %s\n", strerror(errno)); + + total += count; + if (err) + break; + + } + if (nospace_err == true) + continue; + + CHECK(total != max_entries, "lookup with steps", + "total = %u, max_entries = %u\n", total, max_entries); + map_batch_verify(visited, max_entries, keys, values, is_pcpu); + + total = 0; + count = step; + while (total < max_entries) { + if (max_entries - total < step) + count = max_entries - total; + err = bpf_map_delete_batch(map_fd, + keys + total, + &count, &opts); + CHECK((err && errno != ENOENT), "delete batch", + "error: %s\n", strerror(errno)); + total += count; + if (err) + break; + } + CHECK(total != max_entries, "delete with steps", + "total = %u, max_entries = %u\n", total, max_entries); + + /* check map is empty, errono == ENOENT */ + err = bpf_map_get_next_key(map_fd, NULL, &key); + CHECK(!err || errno != ENOENT, "bpf_map_get_next_key()", + "error: %s\n", strerror(errno)); + + /* iteratively lookup/delete elements with 'step' + * elements each + */ + map_batch_update(map_fd, max_entries, keys, values, is_pcpu); + memset(keys, 0, max_entries * sizeof(*keys)); + memset(values, 0, max_entries * value_size); + total = 0; + count = step; + nospace_err = false; + while (true) { + err = bpf_map_lookup_and_delete_batch(map_fd, + total ? &batch : NULL, + &batch, keys + total, + values + + total * value_size, + &count, &opts); + /* It is possible that we are failing due to buffer size + * not big enough. In such cases, let us just exit and + * go with large steps. Not that a buffer size with + * max_entries should always work. + */ + if (err && errno == ENOSPC) { + nospace_err = true; + break; + } + + CHECK((err && errno != ENOENT), "lookup with steps", + "error: %s\n", strerror(errno)); + + total += count; + if (err) + break; + } + + if (nospace_err == true) + continue; + + CHECK(total != max_entries, "lookup/delete with steps", + "total = %u, max_entries = %u\n", total, max_entries); + + map_batch_verify(visited, max_entries, keys, values, is_pcpu); + err = bpf_map_get_next_key(map_fd, NULL, &key); + CHECK(!err, "bpf_map_get_next_key()", "error: %s\n", + strerror(errno)); + + total_success++; + } + + CHECK(total_success == 0, "check total_success", + "unexpected failure\n"); + free(keys); + free(visited); + if (!is_pcpu) + free(values); +} + +void htab_map_batch_ops(void) +{ + __test_map_lookup_and_delete_batch(false); + printf("test_%s:PASS\n", __func__); +} + +void htab_percpu_map_batch_ops(void) +{ + __test_map_lookup_and_delete_batch(true); + printf("test_%s:PASS\n", __func__); +} + +void test_htab_map_batch_ops(void) +{ + htab_map_batch_ops(); + htab_percpu_map_batch_ops(); +} diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c new file mode 100644 index 000000000000..8482bbc67eec --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -0,0 +1,212 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2019 Facebook */ + +#include <linux/err.h> +#include <test_progs.h> +#include "bpf_dctcp.skel.h" +#include "bpf_cubic.skel.h" + +#define min(a, b) ((a) < (b) ? (a) : (b)) + +static const unsigned int total_bytes = 10 * 1024 * 1024; +static const struct timeval timeo_sec = { .tv_sec = 10 }; +static const size_t timeo_optlen = sizeof(timeo_sec); +static int stop, duration; + +static int settimeo(int fd) +{ + int err; + + err = setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeo_sec, + timeo_optlen); + if (CHECK(err == -1, "setsockopt(fd, SO_RCVTIMEO)", "errno:%d\n", + errno)) + return -1; + + err = setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeo_sec, + timeo_optlen); + if (CHECK(err == -1, "setsockopt(fd, SO_SNDTIMEO)", "errno:%d\n", + errno)) + return -1; + + return 0; +} + +static int settcpca(int fd, const char *tcp_ca) +{ + int err; + + err = setsockopt(fd, IPPROTO_TCP, TCP_CONGESTION, tcp_ca, strlen(tcp_ca)); + if (CHECK(err == -1, "setsockopt(fd, TCP_CONGESTION)", "errno:%d\n", + errno)) + return -1; + + return 0; +} + +static void *server(void *arg) +{ + int lfd = (int)(long)arg, err = 0, fd; + ssize_t nr_sent = 0, bytes = 0; + char batch[1500]; + + fd = accept(lfd, NULL, NULL); + while (fd == -1) { + if (errno == EINTR) + continue; + err = -errno; + goto done; + } + + if (settimeo(fd)) { + err = -errno; + goto done; + } + + while (bytes < total_bytes && !READ_ONCE(stop)) { + nr_sent = send(fd, &batch, + min(total_bytes - bytes, sizeof(batch)), 0); + if (nr_sent == -1 && errno == EINTR) + continue; + if (nr_sent == -1) { + err = -errno; + break; + } + bytes += nr_sent; + } + + CHECK(bytes != total_bytes, "send", "%zd != %u nr_sent:%zd errno:%d\n", + bytes, total_bytes, nr_sent, errno); + +done: + if (fd != -1) + close(fd); + if (err) { + WRITE_ONCE(stop, 1); + return ERR_PTR(err); + } + return NULL; +} + +static void do_test(const char *tcp_ca) +{ + struct sockaddr_in6 sa6 = {}; + ssize_t nr_recv = 0, bytes = 0; + int lfd = -1, fd = -1; + pthread_t srv_thread; + socklen_t addrlen = sizeof(sa6); + void *thread_ret; + char batch[1500]; + int err; + + WRITE_ONCE(stop, 0); + + lfd = socket(AF_INET6, SOCK_STREAM, 0); + if (CHECK(lfd == -1, "socket", "errno:%d\n", errno)) + return; + fd = socket(AF_INET6, SOCK_STREAM, 0); + if (CHECK(fd == -1, "socket", "errno:%d\n", errno)) { + close(lfd); + return; + } + + if (settcpca(lfd, tcp_ca) || settcpca(fd, tcp_ca) || + settimeo(lfd) || settimeo(fd)) + goto done; + + /* bind, listen and start server thread to accept */ + sa6.sin6_family = AF_INET6; + sa6.sin6_addr = in6addr_loopback; + err = bind(lfd, (struct sockaddr *)&sa6, addrlen); + if (CHECK(err == -1, "bind", "errno:%d\n", errno)) + goto done; + err = getsockname(lfd, (struct sockaddr *)&sa6, &addrlen); + if (CHECK(err == -1, "getsockname", "errno:%d\n", errno)) + goto done; + err = listen(lfd, 1); + if (CHECK(err == -1, "listen", "errno:%d\n", errno)) + goto done; + err = pthread_create(&srv_thread, NULL, server, (void *)(long)lfd); + if (CHECK(err != 0, "pthread_create", "err:%d\n", err)) + goto done; + + /* connect to server */ + err = connect(fd, (struct sockaddr *)&sa6, addrlen); + if (CHECK(err == -1, "connect", "errno:%d\n", errno)) + goto wait_thread; + + /* recv total_bytes */ + while (bytes < total_bytes && !READ_ONCE(stop)) { + nr_recv = recv(fd, &batch, + min(total_bytes - bytes, sizeof(batch)), 0); + if (nr_recv == -1 && errno == EINTR) + continue; + if (nr_recv == -1) + break; + bytes += nr_recv; + } + + CHECK(bytes != total_bytes, "recv", "%zd != %u nr_recv:%zd errno:%d\n", + bytes, total_bytes, nr_recv, errno); + +wait_thread: + WRITE_ONCE(stop, 1); + pthread_join(srv_thread, &thread_ret); + CHECK(IS_ERR(thread_ret), "pthread_join", "thread_ret:%ld", + PTR_ERR(thread_ret)); +done: + close(lfd); + close(fd); +} + +static void test_cubic(void) +{ + struct bpf_cubic *cubic_skel; + struct bpf_link *link; + + cubic_skel = bpf_cubic__open_and_load(); + if (CHECK(!cubic_skel, "bpf_cubic__open_and_load", "failed\n")) + return; + + link = bpf_map__attach_struct_ops(cubic_skel->maps.cubic); + if (CHECK(IS_ERR(link), "bpf_map__attach_struct_ops", "err:%ld\n", + PTR_ERR(link))) { + bpf_cubic__destroy(cubic_skel); + return; + } + + do_test("bpf_cubic"); + + bpf_link__destroy(link); + bpf_cubic__destroy(cubic_skel); +} + +static void test_dctcp(void) +{ + struct bpf_dctcp *dctcp_skel; + struct bpf_link *link; + + dctcp_skel = bpf_dctcp__open_and_load(); + if (CHECK(!dctcp_skel, "bpf_dctcp__open_and_load", "failed\n")) + return; + + link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp); + if (CHECK(IS_ERR(link), "bpf_map__attach_struct_ops", "err:%ld\n", + PTR_ERR(link))) { + bpf_dctcp__destroy(dctcp_skel); + return; + } + + do_test("bpf_dctcp"); + + bpf_link__destroy(link); + bpf_dctcp__destroy(dctcp_skel); +} + +void test_bpf_tcp_ca(void) +{ + if (test__start_subtest("dctcp")) + test_dctcp(); + if (test__start_subtest("cubic")) + test_cubic(); +} diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c index 9486c13af6b2..e9f2f12ba06b 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c @@ -48,6 +48,8 @@ void test_bpf_verif_scale(void) { "test_verif_scale2.o", BPF_PROG_TYPE_SCHED_CLS }, { "test_verif_scale3.o", BPF_PROG_TYPE_SCHED_CLS }, + { "pyperf_global.o", BPF_PROG_TYPE_RAW_TRACEPOINT }, + /* full unroll by llvm */ { "pyperf50.o", BPF_PROG_TYPE_RAW_TRACEPOINT }, { "pyperf100.o", BPF_PROG_TYPE_RAW_TRACEPOINT }, diff --git a/tools/testing/selftests/bpf/prog_tests/cpu_mask.c b/tools/testing/selftests/bpf/prog_tests/cpu_mask.c index 1fa1bdbaffa9..f7c7e25232be 100644 --- a/tools/testing/selftests/bpf/prog_tests/cpu_mask.c +++ b/tools/testing/selftests/bpf/prog_tests/cpu_mask.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <test_progs.h> #include <bpf/btf.h> -#include "libbpf_internal.h" +#include "bpf/libbpf_internal.h" static int duration = 0; diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c index b426bf2f97e4..db5c74d2ce6d 100644 --- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c +++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c @@ -26,7 +26,7 @@ static void test_fexit_bpf2bpf_common(const char *obj_file, link = calloc(sizeof(struct bpf_link *), prog_cnt); prog = calloc(sizeof(struct bpf_program *), prog_cnt); - result = malloc(prog_cnt * sizeof(u64)); + result = malloc((prog_cnt + 32 /* spare */) * sizeof(u64)); if (CHECK(!link || !prog || !result, "alloc_memory", "failed to alloc memory")) goto close_prog; @@ -98,6 +98,24 @@ static void test_target_yes_callees(void) "fexit/test_pkt_access", "fexit/test_pkt_access_subprog1", "fexit/test_pkt_access_subprog2", + "fexit/test_pkt_access_subprog3", + }; + test_fexit_bpf2bpf_common("./fexit_bpf2bpf.o", + "./test_pkt_access.o", + ARRAY_SIZE(prog_name), + prog_name); +} + +static void test_func_replace(void) +{ + const char *prog_name[] = { + "fexit/test_pkt_access", + "fexit/test_pkt_access_subprog1", + "fexit/test_pkt_access_subprog2", + "fexit/test_pkt_access_subprog3", + "freplace/get_skb_len", + "freplace/get_skb_ifindex", + "freplace/get_constant", }; test_fexit_bpf2bpf_common("./fexit_bpf2bpf.o", "./test_pkt_access.o", @@ -109,4 +127,5 @@ void test_fexit_bpf2bpf(void) { test_target_no_callees(); test_target_yes_callees(); + test_func_replace(); } diff --git a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c index cf6c87936c69..1450ea2dd4cc 100644 --- a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c +++ b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c @@ -4,7 +4,7 @@ #include <sched.h> #include <sys/socket.h> #include <test_progs.h> -#include "libbpf_internal.h" +#include "bpf/libbpf_internal.h" static void on_sample(void *ctx, int cpu, void *data, __u32 size) { diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c index b607112c64e7..504abb7bfb95 100644 --- a/tools/testing/selftests/bpf/prog_tests/send_signal.c +++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <test_progs.h> +#include "test_send_signal_kern.skel.h" static volatile int sigusr1_received = 0; @@ -9,17 +10,15 @@ static void sigusr1_handler(int signum) } static void test_send_signal_common(struct perf_event_attr *attr, - int prog_type, + bool signal_thread, const char *test_name) { - int err = -1, pmu_fd, prog_fd, info_map_fd, status_map_fd; - const char *file = "./test_send_signal_kern.o"; - struct bpf_object *obj = NULL; + struct test_send_signal_kern *skel; int pipe_c2p[2], pipe_p2c[2]; - __u32 key = 0, duration = 0; + int err = -1, pmu_fd = -1; + __u32 duration = 0; char buf[256]; pid_t pid; - __u64 val; if (CHECK(pipe(pipe_c2p), test_name, "pipe pipe_c2p error: %s\n", strerror(errno))) @@ -73,45 +72,39 @@ static void test_send_signal_common(struct perf_event_attr *attr, close(pipe_c2p[1]); /* close write */ close(pipe_p2c[0]); /* close read */ - err = bpf_prog_load(file, prog_type, &obj, &prog_fd); - if (CHECK(err < 0, test_name, "bpf_prog_load error: %s\n", - strerror(errno))) - goto prog_load_failure; - - pmu_fd = syscall(__NR_perf_event_open, attr, pid, -1, - -1 /* group id */, 0 /* flags */); - if (CHECK(pmu_fd < 0, test_name, "perf_event_open error: %s\n", - strerror(errno))) { - err = -1; - goto close_prog; - } + skel = test_send_signal_kern__open_and_load(); + if (CHECK(!skel, "skel_open_and_load", "skeleton open_and_load failed\n")) + goto skel_open_load_failure; - err = ioctl(pmu_fd, PERF_EVENT_IOC_ENABLE, 0); - if (CHECK(err < 0, test_name, "ioctl perf_event_ioc_enable error: %s\n", - strerror(errno))) - goto disable_pmu; - - err = ioctl(pmu_fd, PERF_EVENT_IOC_SET_BPF, prog_fd); - if (CHECK(err < 0, test_name, "ioctl perf_event_ioc_set_bpf error: %s\n", - strerror(errno))) - goto disable_pmu; - - err = -1; - info_map_fd = bpf_object__find_map_fd_by_name(obj, "info_map"); - if (CHECK(info_map_fd < 0, test_name, "find map %s error\n", "info_map")) - goto disable_pmu; + if (!attr) { + err = test_send_signal_kern__attach(skel); + if (CHECK(err, "skel_attach", "skeleton attach failed\n")) { + err = -1; + goto destroy_skel; + } + } else { + pmu_fd = syscall(__NR_perf_event_open, attr, pid, -1, + -1 /* group id */, 0 /* flags */); + if (CHECK(pmu_fd < 0, test_name, "perf_event_open error: %s\n", + strerror(errno))) { + err = -1; + goto destroy_skel; + } - status_map_fd = bpf_object__find_map_fd_by_name(obj, "status_map"); - if (CHECK(status_map_fd < 0, test_name, "find map %s error\n", "status_map")) - goto disable_pmu; + skel->links.send_signal_perf = + bpf_program__attach_perf_event(skel->progs.send_signal_perf, pmu_fd); + if (CHECK(IS_ERR(skel->links.send_signal_perf), "attach_perf_event", + "err %ld\n", PTR_ERR(skel->links.send_signal_perf))) + goto disable_pmu; + } /* wait until child signal handler installed */ read(pipe_c2p[0], buf, 1); /* trigger the bpf send_signal */ - key = 0; - val = (((__u64)(SIGUSR1)) << 32) | pid; - bpf_map_update_elem(info_map_fd, &key, &val, 0); + skel->bss->pid = pid; + skel->bss->sig = SIGUSR1; + skel->bss->signal_thread = signal_thread; /* notify child that bpf program can send_signal now */ write(pipe_p2c[1], buf, 1); @@ -132,46 +125,20 @@ static void test_send_signal_common(struct perf_event_attr *attr, disable_pmu: close(pmu_fd); -close_prog: - bpf_object__close(obj); -prog_load_failure: +destroy_skel: + test_send_signal_kern__destroy(skel); +skel_open_load_failure: close(pipe_c2p[0]); close(pipe_p2c[1]); wait(NULL); } -static void test_send_signal_tracepoint(void) +static void test_send_signal_tracepoint(bool signal_thread) { - const char *id_path = "/sys/kernel/debug/tracing/events/syscalls/sys_enter_nanosleep/id"; - struct perf_event_attr attr = { - .type = PERF_TYPE_TRACEPOINT, - .sample_type = PERF_SAMPLE_RAW | PERF_SAMPLE_CALLCHAIN, - .sample_period = 1, - .wakeup_events = 1, - }; - __u32 duration = 0; - int bytes, efd; - char buf[256]; - - efd = open(id_path, O_RDONLY, 0); - if (CHECK(efd < 0, "tracepoint", - "open syscalls/sys_enter_nanosleep/id failure: %s\n", - strerror(errno))) - return; - - bytes = read(efd, buf, sizeof(buf)); - close(efd); - if (CHECK(bytes <= 0 || bytes >= sizeof(buf), "tracepoint", - "read syscalls/sys_enter_nanosleep/id failure: %s\n", - strerror(errno))) - return; - - attr.config = strtol(buf, NULL, 0); - - test_send_signal_common(&attr, BPF_PROG_TYPE_TRACEPOINT, "tracepoint"); + test_send_signal_common(NULL, signal_thread, "tracepoint"); } -static void test_send_signal_perf(void) +static void test_send_signal_perf(bool signal_thread) { struct perf_event_attr attr = { .sample_period = 1, @@ -179,15 +146,13 @@ static void test_send_signal_perf(void) .config = PERF_COUNT_SW_CPU_CLOCK, }; - test_send_signal_common(&attr, BPF_PROG_TYPE_PERF_EVENT, - "perf_sw_event"); + test_send_signal_common(&attr, signal_thread, "perf_sw_event"); } -static void test_send_signal_nmi(void) +static void test_send_signal_nmi(bool signal_thread) { struct perf_event_attr attr = { - .sample_freq = 50, - .freq = 1, + .sample_period = 1, .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_CPU_CYCLES, }; @@ -210,16 +175,21 @@ static void test_send_signal_nmi(void) close(pmu_fd); } - test_send_signal_common(&attr, BPF_PROG_TYPE_PERF_EVENT, - "perf_hw_event"); + test_send_signal_common(&attr, signal_thread, "perf_hw_event"); } void test_send_signal(void) { if (test__start_subtest("send_signal_tracepoint")) - test_send_signal_tracepoint(); + test_send_signal_tracepoint(false); if (test__start_subtest("send_signal_perf")) - test_send_signal_perf(); + test_send_signal_perf(false); if (test__start_subtest("send_signal_nmi")) - test_send_signal_nmi(); + test_send_signal_nmi(false); + if (test__start_subtest("send_signal_tracepoint_thread")) + test_send_signal_tracepoint(true); + if (test__start_subtest("send_signal_perf_thread")) + test_send_signal_perf(true); + if (test__start_subtest("send_signal_nmi_thread")) + test_send_signal_nmi(true); } diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c index 8974450a4bdb..f002e3090d92 100644 --- a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c +++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c @@ -49,8 +49,12 @@ retry: pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */, 0 /* cpu 0 */, -1 /* group id */, 0 /* flags */); - if (CHECK(pmu_fd < 0, "perf_event_open", - "err %d errno %d. Does the test host support PERF_COUNT_HW_CPU_CYCLES?\n", + if (pmu_fd < 0 && errno == ENOENT) { + printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__); + test__skip(); + goto cleanup; + } + if (CHECK(pmu_fd < 0, "perf_event_open", "err %d errno %d\n", pmu_fd, errno)) goto cleanup; diff --git a/tools/testing/selftests/bpf/prog_tests/test_global_funcs.c b/tools/testing/selftests/bpf/prog_tests/test_global_funcs.c new file mode 100644 index 000000000000..25b068591e9a --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/test_global_funcs.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2020 Facebook */ +#include <test_progs.h> + +const char *err_str; +bool found; + +static int libbpf_debug_print(enum libbpf_print_level level, + const char *format, va_list args) +{ + char *log_buf; + + if (level != LIBBPF_WARN || + strcmp(format, "libbpf: \n%s\n")) { + vprintf(format, args); + return 0; + } + + log_buf = va_arg(args, char *); + if (!log_buf) + goto out; + if (strstr(log_buf, err_str) == 0) + found = true; +out: + printf(format, log_buf); + return 0; +} + +extern int extra_prog_load_log_flags; + +static int check_load(const char *file) +{ + struct bpf_prog_load_attr attr; + struct bpf_object *obj = NULL; + int err, prog_fd; + + memset(&attr, 0, sizeof(struct bpf_prog_load_attr)); + attr.file = file; + attr.prog_type = BPF_PROG_TYPE_UNSPEC; + attr.log_level = extra_prog_load_log_flags; + attr.prog_flags = BPF_F_TEST_RND_HI32; + found = false; + err = bpf_prog_load_xattr(&attr, &obj, &prog_fd); + bpf_object__close(obj); + return err; +} + +struct test_def { + const char *file; + const char *err_str; +}; + +void test_test_global_funcs(void) +{ + struct test_def tests[] = { + { "test_global_func1.o", "combined stack size of 4 calls is 544" }, + { "test_global_func2.o" }, + { "test_global_func3.o" , "the call stack of 8 frames" }, + { "test_global_func4.o" }, + { "test_global_func5.o" , "expected pointer to ctx, but got PTR" }, + { "test_global_func6.o" , "modified ctx ptr R2" }, + { "test_global_func7.o" , "foo() doesn't return scalar" }, + }; + libbpf_print_fn_t old_print_fn = NULL; + int err, i, duration = 0; + + old_print_fn = libbpf_set_print(libbpf_debug_print); + + for (i = 0; i < ARRAY_SIZE(tests); i++) { + const struct test_def *test = &tests[i]; + + if (!test__start_subtest(test->file)) + continue; + + err_str = test->err_str; + err = check_load(test->file); + CHECK_FAIL(!!err ^ !!err_str); + if (err_str) + CHECK(found, "", "expected string '%s'", err_str); + } + libbpf_set_print(old_print_fn); +} diff --git a/tools/testing/selftests/bpf/prog_tests/test_overhead.c b/tools/testing/selftests/bpf/prog_tests/test_overhead.c index c32aa28bd93f..465b371a561d 100644 --- a/tools/testing/selftests/bpf/prog_tests/test_overhead.c +++ b/tools/testing/selftests/bpf/prog_tests/test_overhead.c @@ -2,6 +2,7 @@ /* Copyright (c) 2019 Facebook */ #define _GNU_SOURCE #include <sched.h> +#include <sys/prctl.h> #include <test_progs.h> #define MAX_CNT 100000 @@ -17,7 +18,7 @@ static __u64 time_get_ns(void) static int test_task_rename(const char *prog) { int i, fd, duration = 0, err; - char buf[] = "test\n"; + char buf[] = "test_overhead"; __u64 start_time; fd = open("/proc/self/comm", O_WRONLY|O_TRUNC); @@ -66,6 +67,10 @@ void test_test_overhead(void) struct bpf_object *obj; struct bpf_link *link; int err, duration = 0; + char comm[16] = {}; + + if (CHECK_FAIL(prctl(PR_GET_NAME, comm, 0L, 0L, 0L))) + return; obj = bpf_object__open_file("./test_overhead.o", NULL); if (CHECK(IS_ERR(obj), "obj_open_file", "err %ld\n", PTR_ERR(obj))) @@ -138,5 +143,6 @@ void test_test_overhead(void) test_run("fexit"); bpf_link__destroy(link); cleanup: + prctl(PR_SET_NAME, comm, 0L, 0L, 0L); bpf_object__close(obj); } diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c new file mode 100644 index 000000000000..6b56bdc73ebc --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include <net/if.h> +#include "test_xdp.skel.h" +#include "test_xdp_bpf2bpf.skel.h" + +void test_xdp_bpf2bpf(void) +{ + __u32 duration = 0, retval, size; + char buf[128]; + int err, pkt_fd, map_fd; + struct iphdr *iph = (void *)buf + sizeof(struct ethhdr); + struct iptnl_info value4 = {.family = AF_INET}; + struct test_xdp *pkt_skel = NULL; + struct test_xdp_bpf2bpf *ftrace_skel = NULL; + struct vip key4 = {.protocol = 6, .family = AF_INET}; + DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts); + + /* Load XDP program to introspect */ + pkt_skel = test_xdp__open_and_load(); + if (CHECK(!pkt_skel, "pkt_skel_load", "test_xdp skeleton failed\n")) + return; + + pkt_fd = bpf_program__fd(pkt_skel->progs._xdp_tx_iptunnel); + + map_fd = bpf_map__fd(pkt_skel->maps.vip2tnl); + bpf_map_update_elem(map_fd, &key4, &value4, 0); + + /* Load trace program */ + opts.attach_prog_fd = pkt_fd, + ftrace_skel = test_xdp_bpf2bpf__open_opts(&opts); + if (CHECK(!ftrace_skel, "__open", "ftrace skeleton failed\n")) + goto out; + + err = test_xdp_bpf2bpf__load(ftrace_skel); + if (CHECK(err, "__load", "ftrace skeleton failed\n")) + goto out; + + err = test_xdp_bpf2bpf__attach(ftrace_skel); + if (CHECK(err, "ftrace_attach", "ftrace attach failed: %d\n", err)) + goto out; + + /* Run test program */ + err = bpf_prog_test_run(pkt_fd, 1, &pkt_v4, sizeof(pkt_v4), + buf, &size, &retval, &duration); + + if (CHECK(err || retval != XDP_TX || size != 74 || + iph->protocol != IPPROTO_IPIP, "ipv4", + "err %d errno %d retval %d size %d\n", + err, errno, retval, size)) + goto out; + + /* Verify test results */ + if (CHECK(ftrace_skel->bss->test_result_fentry != if_nametoindex("lo"), + "result", "fentry failed err %llu\n", + ftrace_skel->bss->test_result_fentry)) + goto out; + + CHECK(ftrace_skel->bss->test_result_fexit != XDP_TX, "result", + "fexit failed err %llu\n", ftrace_skel->bss->test_result_fexit); + +out: + test_xdp__destroy(pkt_skel); + test_xdp_bpf2bpf__destroy(ftrace_skel); +} diff --git a/tools/testing/selftests/bpf/progs/bpf_cubic.c b/tools/testing/selftests/bpf/progs/bpf_cubic.c new file mode 100644 index 000000000000..7897c8f4d363 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bpf_cubic.c @@ -0,0 +1,544 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* WARNING: This implemenation is not necessarily the same + * as the tcp_cubic.c. The purpose is mainly for testing + * the kernel BPF logic. + * + * Highlights: + * 1. CONFIG_HZ .kconfig map is used. + * 2. In bictcp_update(), calculation is changed to use usec + * resolution (i.e. USEC_PER_JIFFY) instead of using jiffies. + * Thus, usecs_to_jiffies() is not used in the bpf_cubic.c. + * 3. In bitctcp_update() [under tcp_friendliness], the original + * "while (ca->ack_cnt > delta)" loop is changed to the equivalent + * "ca->ack_cnt / delta" operation. + */ + +#include <linux/bpf.h> +#include "bpf_tcp_helpers.h" + +char _license[] SEC("license") = "GPL"; + +#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) + +#define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation + * max_cwnd = snd_cwnd * beta + */ +#define BICTCP_HZ 10 /* BIC HZ 2^10 = 1024 */ + +/* Two methods of hybrid slow start */ +#define HYSTART_ACK_TRAIN 0x1 +#define HYSTART_DELAY 0x2 + +/* Number of delay samples for detecting the increase of delay */ +#define HYSTART_MIN_SAMPLES 8 +#define HYSTART_DELAY_MIN (4000U) /* 4ms */ +#define HYSTART_DELAY_MAX (16000U) /* 16 ms */ +#define HYSTART_DELAY_THRESH(x) clamp(x, HYSTART_DELAY_MIN, HYSTART_DELAY_MAX) + +static int fast_convergence = 1; +static const int beta = 717; /* = 717/1024 (BICTCP_BETA_SCALE) */ +static int initial_ssthresh; +static const int bic_scale = 41; +static int tcp_friendliness = 1; + +static int hystart = 1; +static int hystart_detect = HYSTART_ACK_TRAIN | HYSTART_DELAY; +static int hystart_low_window = 16; +static int hystart_ack_delta_us = 2000; + +static const __u32 cube_rtt_scale = (bic_scale * 10); /* 1024*c/rtt */ +static const __u32 beta_scale = 8*(BICTCP_BETA_SCALE+beta) / 3 + / (BICTCP_BETA_SCALE - beta); +/* calculate the "K" for (wmax-cwnd) = c/rtt * K^3 + * so K = cubic_root( (wmax-cwnd)*rtt/c ) + * the unit of K is bictcp_HZ=2^10, not HZ + * + * c = bic_scale >> 10 + * rtt = 100ms + * + * the following code has been designed and tested for + * cwnd < 1 million packets + * RTT < 100 seconds + * HZ < 1,000,00 (corresponding to 10 nano-second) + */ + +/* 1/c * 2^2*bictcp_HZ * srtt, 2^40 */ +static const __u64 cube_factor = (__u64)(1ull << (10+3*BICTCP_HZ)) + / (bic_scale * 10); + +/* BIC TCP Parameters */ +struct bictcp { + __u32 cnt; /* increase cwnd by 1 after ACKs */ + __u32 last_max_cwnd; /* last maximum snd_cwnd */ + __u32 last_cwnd; /* the last snd_cwnd */ + __u32 last_time; /* time when updated last_cwnd */ + __u32 bic_origin_point;/* origin point of bic function */ + __u32 bic_K; /* time to origin point + from the beginning of the current epoch */ + __u32 delay_min; /* min delay (usec) */ + __u32 epoch_start; /* beginning of an epoch */ + __u32 ack_cnt; /* number of acks */ + __u32 tcp_cwnd; /* estimated tcp cwnd */ + __u16 unused; + __u8 sample_cnt; /* number of samples to decide curr_rtt */ + __u8 found; /* the exit point is found? */ + __u32 round_start; /* beginning of each round */ + __u32 end_seq; /* end_seq of the round */ + __u32 last_ack; /* last time when the ACK spacing is close */ + __u32 curr_rtt; /* the minimum rtt of current round */ +}; + +static inline void bictcp_reset(struct bictcp *ca) +{ + ca->cnt = 0; + ca->last_max_cwnd = 0; + ca->last_cwnd = 0; + ca->last_time = 0; + ca->bic_origin_point = 0; + ca->bic_K = 0; + ca->delay_min = 0; + ca->epoch_start = 0; + ca->ack_cnt = 0; + ca->tcp_cwnd = 0; + ca->found = 0; +} + +extern unsigned long CONFIG_HZ __kconfig; +#define HZ CONFIG_HZ +#define USEC_PER_MSEC 1000UL +#define USEC_PER_SEC 1000000UL +#define USEC_PER_JIFFY (USEC_PER_SEC / HZ) + +static __always_inline __u64 div64_u64(__u64 dividend, __u64 divisor) +{ + return dividend / divisor; +} + +#define div64_ul div64_u64 + +#define BITS_PER_U64 (sizeof(__u64) * 8) +static __always_inline int fls64(__u64 x) +{ + int num = BITS_PER_U64 - 1; + + if (x == 0) + return 0; + + if (!(x & (~0ull << (BITS_PER_U64-32)))) { + num -= 32; + x <<= 32; + } + if (!(x & (~0ull << (BITS_PER_U64-16)))) { + num -= 16; + x <<= 16; + } + if (!(x & (~0ull << (BITS_PER_U64-8)))) { + num -= 8; + x <<= 8; + } + if (!(x & (~0ull << (BITS_PER_U64-4)))) { + num -= 4; + x <<= 4; + } + if (!(x & (~0ull << (BITS_PER_U64-2)))) { + num -= 2; + x <<= 2; + } + if (!(x & (~0ull << (BITS_PER_U64-1)))) + num -= 1; + + return num + 1; +} + +static __always_inline __u32 bictcp_clock_us(const struct sock *sk) +{ + return tcp_sk(sk)->tcp_mstamp; +} + +static __always_inline void bictcp_hystart_reset(struct sock *sk) +{ + struct tcp_sock *tp = tcp_sk(sk); + struct bictcp *ca = inet_csk_ca(sk); + + ca->round_start = ca->last_ack = bictcp_clock_us(sk); + ca->end_seq = tp->snd_nxt; + ca->curr_rtt = ~0U; + ca->sample_cnt = 0; +} + +/* "struct_ops/" prefix is not a requirement + * It will be recognized as BPF_PROG_TYPE_STRUCT_OPS + * as long as it is used in one of the func ptr + * under SEC(".struct_ops"). + */ +SEC("struct_ops/bictcp_init") +void BPF_PROG(bictcp_init, struct sock *sk) +{ + struct bictcp *ca = inet_csk_ca(sk); + + bictcp_reset(ca); + + if (hystart) + bictcp_hystart_reset(sk); + + if (!hystart && initial_ssthresh) + tcp_sk(sk)->snd_ssthresh = initial_ssthresh; +} + +/* No prefix in SEC will also work. + * The remaining tcp-cubic functions have an easier way. + */ +SEC("no-sec-prefix-bictcp_cwnd_event") +void BPF_PROG(bictcp_cwnd_event, struct sock *sk, enum tcp_ca_event event) +{ + if (event == CA_EVENT_TX_START) { + struct bictcp *ca = inet_csk_ca(sk); + __u32 now = tcp_jiffies32; + __s32 delta; + + delta = now - tcp_sk(sk)->lsndtime; + + /* We were application limited (idle) for a while. + * Shift epoch_start to keep cwnd growth to cubic curve. + */ + if (ca->epoch_start && delta > 0) { + ca->epoch_start += delta; + if (after(ca->epoch_start, now)) + ca->epoch_start = now; + } + return; + } +} + +/* + * cbrt(x) MSB values for x MSB values in [0..63]. + * Precomputed then refined by hand - Willy Tarreau + * + * For x in [0..63], + * v = cbrt(x << 18) - 1 + * cbrt(x) = (v[x] + 10) >> 6 + */ +static const __u8 v[] = { + /* 0x00 */ 0, 54, 54, 54, 118, 118, 118, 118, + /* 0x08 */ 123, 129, 134, 138, 143, 147, 151, 156, + /* 0x10 */ 157, 161, 164, 168, 170, 173, 176, 179, + /* 0x18 */ 181, 185, 187, 190, 192, 194, 197, 199, + /* 0x20 */ 200, 202, 204, 206, 209, 211, 213, 215, + /* 0x28 */ 217, 219, 221, 222, 224, 225, 227, 229, + /* 0x30 */ 231, 232, 234, 236, 237, 239, 240, 242, + /* 0x38 */ 244, 245, 246, 248, 250, 251, 252, 254, +}; + +/* calculate the cubic root of x using a table lookup followed by one + * Newton-Raphson iteration. + * Avg err ~= 0.195% + */ +static __always_inline __u32 cubic_root(__u64 a) +{ + __u32 x, b, shift; + + if (a < 64) { + /* a in [0..63] */ + return ((__u32)v[(__u32)a] + 35) >> 6; + } + + b = fls64(a); + b = ((b * 84) >> 8) - 1; + shift = (a >> (b * 3)); + + /* it is needed for verifier's bound check on v */ + if (shift >= 64) + return 0; + + x = ((__u32)(((__u32)v[shift] + 10) << b)) >> 6; + + /* + * Newton-Raphson iteration + * 2 + * x = ( 2 * x + a / x ) / 3 + * k+1 k k + */ + x = (2 * x + (__u32)div64_u64(a, (__u64)x * (__u64)(x - 1))); + x = ((x * 341) >> 10); + return x; +} + +/* + * Compute congestion window to use. + */ +static __always_inline void bictcp_update(struct bictcp *ca, __u32 cwnd, + __u32 acked) +{ + __u32 delta, bic_target, max_cnt; + __u64 offs, t; + + ca->ack_cnt += acked; /* count the number of ACKed packets */ + + if (ca->last_cwnd == cwnd && + (__s32)(tcp_jiffies32 - ca->last_time) <= HZ / 32) + return; + + /* The CUBIC function can update ca->cnt at most once per jiffy. + * On all cwnd reduction events, ca->epoch_start is set to 0, + * which will force a recalculation of ca->cnt. + */ + if (ca->epoch_start && tcp_jiffies32 == ca->last_time) + goto tcp_friendliness; + + ca->last_cwnd = cwnd; + ca->last_time = tcp_jiffies32; + + if (ca->epoch_start == 0) { + ca->epoch_start = tcp_jiffies32; /* record beginning */ + ca->ack_cnt = acked; /* start counting */ + ca->tcp_cwnd = cwnd; /* syn with cubic */ + + if (ca->last_max_cwnd <= cwnd) { + ca->bic_K = 0; + ca->bic_origin_point = cwnd; + } else { + /* Compute new K based on + * (wmax-cwnd) * (srtt>>3 / HZ) / c * 2^(3*bictcp_HZ) + */ + ca->bic_K = cubic_root(cube_factor + * (ca->last_max_cwnd - cwnd)); + ca->bic_origin_point = ca->last_max_cwnd; + } + } + + /* cubic function - calc*/ + /* calculate c * time^3 / rtt, + * while considering overflow in calculation of time^3 + * (so time^3 is done by using 64 bit) + * and without the support of division of 64bit numbers + * (so all divisions are done by using 32 bit) + * also NOTE the unit of those veriables + * time = (t - K) / 2^bictcp_HZ + * c = bic_scale >> 10 + * rtt = (srtt >> 3) / HZ + * !!! The following code does not have overflow problems, + * if the cwnd < 1 million packets !!! + */ + + t = (__s32)(tcp_jiffies32 - ca->epoch_start) * USEC_PER_JIFFY; + t += ca->delay_min; + /* change the unit from usec to bictcp_HZ */ + t <<= BICTCP_HZ; + t /= USEC_PER_SEC; + + if (t < ca->bic_K) /* t - K */ + offs = ca->bic_K - t; + else + offs = t - ca->bic_K; + + /* c/rtt * (t-K)^3 */ + delta = (cube_rtt_scale * offs * offs * offs) >> (10+3*BICTCP_HZ); + if (t < ca->bic_K) /* below origin*/ + bic_target = ca->bic_origin_point - delta; + else /* above origin*/ + bic_target = ca->bic_origin_point + delta; + + /* cubic function - calc bictcp_cnt*/ + if (bic_target > cwnd) { + ca->cnt = cwnd / (bic_target - cwnd); + } else { + ca->cnt = 100 * cwnd; /* very small increment*/ + } + + /* + * The initial growth of cubic function may be too conservative + * when the available bandwidth is still unknown. + */ + if (ca->last_max_cwnd == 0 && ca->cnt > 20) + ca->cnt = 20; /* increase cwnd 5% per RTT */ + +tcp_friendliness: + /* TCP Friendly */ + if (tcp_friendliness) { + __u32 scale = beta_scale; + __u32 n; + + /* update tcp cwnd */ + delta = (cwnd * scale) >> 3; + if (ca->ack_cnt > delta && delta) { + n = ca->ack_cnt / delta; + ca->ack_cnt -= n * delta; + ca->tcp_cwnd += n; + } + + if (ca->tcp_cwnd > cwnd) { /* if bic is slower than tcp */ + delta = ca->tcp_cwnd - cwnd; + max_cnt = cwnd / delta; + if (ca->cnt > max_cnt) + ca->cnt = max_cnt; + } + } + + /* The maximum rate of cwnd increase CUBIC allows is 1 packet per + * 2 packets ACKed, meaning cwnd grows at 1.5x per RTT. + */ + ca->cnt = max(ca->cnt, 2U); +} + +/* Or simply use the BPF_STRUCT_OPS to avoid the SEC boiler plate. */ +void BPF_STRUCT_OPS(bictcp_cong_avoid, struct sock *sk, __u32 ack, __u32 acked) +{ + struct tcp_sock *tp = tcp_sk(sk); + struct bictcp *ca = inet_csk_ca(sk); + + if (!tcp_is_cwnd_limited(sk)) + return; + + if (tcp_in_slow_start(tp)) { + if (hystart && after(ack, ca->end_seq)) + bictcp_hystart_reset(sk); + acked = tcp_slow_start(tp, acked); + if (!acked) + return; + } + bictcp_update(ca, tp->snd_cwnd, acked); + tcp_cong_avoid_ai(tp, ca->cnt, acked); +} + +__u32 BPF_STRUCT_OPS(bictcp_recalc_ssthresh, struct sock *sk) +{ + const struct tcp_sock *tp = tcp_sk(sk); + struct bictcp *ca = inet_csk_ca(sk); + + ca->epoch_start = 0; /* end of epoch */ + + /* Wmax and fast convergence */ + if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence) + ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta)) + / (2 * BICTCP_BETA_SCALE); + else + ca->last_max_cwnd = tp->snd_cwnd; + + return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U); +} + +void BPF_STRUCT_OPS(bictcp_state, struct sock *sk, __u8 new_state) +{ + if (new_state == TCP_CA_Loss) { + bictcp_reset(inet_csk_ca(sk)); + bictcp_hystart_reset(sk); + } +} + +#define GSO_MAX_SIZE 65536 + +/* Account for TSO/GRO delays. + * Otherwise short RTT flows could get too small ssthresh, since during + * slow start we begin with small TSO packets and ca->delay_min would + * not account for long aggregation delay when TSO packets get bigger. + * Ideally even with a very small RTT we would like to have at least one + * TSO packet being sent and received by GRO, and another one in qdisc layer. + * We apply another 100% factor because @rate is doubled at this point. + * We cap the cushion to 1ms. + */ +static __always_inline __u32 hystart_ack_delay(struct sock *sk) +{ + unsigned long rate; + + rate = sk->sk_pacing_rate; + if (!rate) + return 0; + return min((__u64)USEC_PER_MSEC, + div64_ul((__u64)GSO_MAX_SIZE * 4 * USEC_PER_SEC, rate)); +} + +static __always_inline void hystart_update(struct sock *sk, __u32 delay) +{ + struct tcp_sock *tp = tcp_sk(sk); + struct bictcp *ca = inet_csk_ca(sk); + __u32 threshold; + + if (hystart_detect & HYSTART_ACK_TRAIN) { + __u32 now = bictcp_clock_us(sk); + + /* first detection parameter - ack-train detection */ + if ((__s32)(now - ca->last_ack) <= hystart_ack_delta_us) { + ca->last_ack = now; + + threshold = ca->delay_min + hystart_ack_delay(sk); + + /* Hystart ack train triggers if we get ack past + * ca->delay_min/2. + * Pacing might have delayed packets up to RTT/2 + * during slow start. + */ + if (sk->sk_pacing_status == SK_PACING_NONE) + threshold >>= 1; + + if ((__s32)(now - ca->round_start) > threshold) { + ca->found = 1; + tp->snd_ssthresh = tp->snd_cwnd; + } + } + } + + if (hystart_detect & HYSTART_DELAY) { + /* obtain the minimum delay of more than sampling packets */ + if (ca->sample_cnt < HYSTART_MIN_SAMPLES) { + if (ca->curr_rtt > delay) + ca->curr_rtt = delay; + + ca->sample_cnt++; + } else { + if (ca->curr_rtt > ca->delay_min + + HYSTART_DELAY_THRESH(ca->delay_min >> 3)) { + ca->found = 1; + tp->snd_ssthresh = tp->snd_cwnd; + } + } + } +} + +void BPF_STRUCT_OPS(bictcp_acked, struct sock *sk, + const struct ack_sample *sample) +{ + const struct tcp_sock *tp = tcp_sk(sk); + struct bictcp *ca = inet_csk_ca(sk); + __u32 delay; + + /* Some calls are for duplicates without timetamps */ + if (sample->rtt_us < 0) + return; + + /* Discard delay samples right after fast recovery */ + if (ca->epoch_start && (__s32)(tcp_jiffies32 - ca->epoch_start) < HZ) + return; + + delay = sample->rtt_us; + if (delay == 0) + delay = 1; + + /* first time call or link delay decreases */ + if (ca->delay_min == 0 || ca->delay_min > delay) + ca->delay_min = delay; + + /* hystart triggers when cwnd is larger than some threshold */ + if (!ca->found && tcp_in_slow_start(tp) && hystart && + tp->snd_cwnd >= hystart_low_window) + hystart_update(sk, delay); +} + +__u32 BPF_STRUCT_OPS(tcp_reno_undo_cwnd, struct sock *sk) +{ + const struct tcp_sock *tp = tcp_sk(sk); + + return max(tp->snd_cwnd, tp->prior_cwnd); +} + +SEC(".struct_ops") +struct tcp_congestion_ops cubic = { + .init = (void *)bictcp_init, + .ssthresh = (void *)bictcp_recalc_ssthresh, + .cong_avoid = (void *)bictcp_cong_avoid, + .set_state = (void *)bictcp_state, + .undo_cwnd = (void *)tcp_reno_undo_cwnd, + .cwnd_event = (void *)bictcp_cwnd_event, + .pkts_acked = (void *)bictcp_acked, + .name = "bpf_cubic", +}; diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp.c b/tools/testing/selftests/bpf/progs/bpf_dctcp.c new file mode 100644 index 000000000000..b631fb5032d2 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/bpf_dctcp.c @@ -0,0 +1,216 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2019 Facebook */ + +/* WARNING: This implemenation is not necessarily the same + * as the tcp_dctcp.c. The purpose is mainly for testing + * the kernel BPF logic. + */ + +#include <linux/bpf.h> +#include <linux/types.h> +#include <bpf/bpf_helpers.h> +#include "bpf_trace_helpers.h" +#include "bpf_tcp_helpers.h" + +char _license[] SEC("license") = "GPL"; + +#define DCTCP_MAX_ALPHA 1024U + +struct dctcp { + __u32 old_delivered; + __u32 old_delivered_ce; + __u32 prior_rcv_nxt; + __u32 dctcp_alpha; + __u32 next_seq; + __u32 ce_state; + __u32 loss_cwnd; +}; + +static unsigned int dctcp_shift_g = 4; /* g = 1/2^4 */ +static unsigned int dctcp_alpha_on_init = DCTCP_MAX_ALPHA; + +static __always_inline void dctcp_reset(const struct tcp_sock *tp, + struct dctcp *ca) +{ + ca->next_seq = tp->snd_nxt; + + ca->old_delivered = tp->delivered; + ca->old_delivered_ce = tp->delivered_ce; +} + +SEC("struct_ops/dctcp_init") +void BPF_PROG(dctcp_init, struct sock *sk) +{ + const struct tcp_sock *tp = tcp_sk(sk); + struct dctcp *ca = inet_csk_ca(sk); + + ca->prior_rcv_nxt = tp->rcv_nxt; + ca->dctcp_alpha = min(dctcp_alpha_on_init, DCTCP_MAX_ALPHA); + ca->loss_cwnd = 0; + ca->ce_state = 0; + + dctcp_reset(tp, ca); +} + +SEC("struct_ops/dctcp_ssthresh") +__u32 BPF_PROG(dctcp_ssthresh, struct sock *sk) +{ + struct dctcp *ca = inet_csk_ca(sk); + struct tcp_sock *tp = tcp_sk(sk); + + ca->loss_cwnd = tp->snd_cwnd; + return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U); +} + +SEC("struct_ops/dctcp_update_alpha") +void BPF_PROG(dctcp_update_alpha, struct sock *sk, __u32 flags) +{ + const struct tcp_sock *tp = tcp_sk(sk); + struct dctcp *ca = inet_csk_ca(sk); + + /* Expired RTT */ + if (!before(tp->snd_una, ca->next_seq)) { + __u32 delivered_ce = tp->delivered_ce - ca->old_delivered_ce; + __u32 alpha = ca->dctcp_alpha; + + /* alpha = (1 - g) * alpha + g * F */ + + alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g); + if (delivered_ce) { + __u32 delivered = tp->delivered - ca->old_delivered; + + /* If dctcp_shift_g == 1, a 32bit value would overflow + * after 8 M packets. + */ + delivered_ce <<= (10 - dctcp_shift_g); + delivered_ce /= max(1U, delivered); + + alpha = min(alpha + delivered_ce, DCTCP_MAX_ALPHA); + } + ca->dctcp_alpha = alpha; + dctcp_reset(tp, ca); + } +} + +static __always_inline void dctcp_react_to_loss(struct sock *sk) +{ + struct dctcp *ca = inet_csk_ca(sk); + struct tcp_sock *tp = tcp_sk(sk); + + ca->loss_cwnd = tp->snd_cwnd; + tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U); +} + +SEC("struct_ops/dctcp_state") +void BPF_PROG(dctcp_state, struct sock *sk, __u8 new_state) +{ + if (new_state == TCP_CA_Recovery && + new_state != BPF_CORE_READ_BITFIELD(inet_csk(sk), icsk_ca_state)) + dctcp_react_to_loss(sk); + /* We handle RTO in dctcp_cwnd_event to ensure that we perform only + * one loss-adjustment per RTT. + */ +} + +static __always_inline void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state) +{ + struct tcp_sock *tp = tcp_sk(sk); + + if (ce_state == 1) + tp->ecn_flags |= TCP_ECN_DEMAND_CWR; + else + tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR; +} + +/* Minimal DCTP CE state machine: + * + * S: 0 <- last pkt was non-CE + * 1 <- last pkt was CE + */ +static __always_inline +void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt, + __u32 *prior_rcv_nxt, __u32 *ce_state) +{ + __u32 new_ce_state = (evt == CA_EVENT_ECN_IS_CE) ? 1 : 0; + + if (*ce_state != new_ce_state) { + /* CE state has changed, force an immediate ACK to + * reflect the new CE state. If an ACK was delayed, + * send that first to reflect the prior CE state. + */ + if (inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER) { + dctcp_ece_ack_cwr(sk, *ce_state); + bpf_tcp_send_ack(sk, *prior_rcv_nxt); + } + inet_csk(sk)->icsk_ack.pending |= ICSK_ACK_NOW; + } + *prior_rcv_nxt = tcp_sk(sk)->rcv_nxt; + *ce_state = new_ce_state; + dctcp_ece_ack_cwr(sk, new_ce_state); +} + +SEC("struct_ops/dctcp_cwnd_event") +void BPF_PROG(dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev) +{ + struct dctcp *ca = inet_csk_ca(sk); + + switch (ev) { + case CA_EVENT_ECN_IS_CE: + case CA_EVENT_ECN_NO_CE: + dctcp_ece_ack_update(sk, ev, &ca->prior_rcv_nxt, &ca->ce_state); + break; + case CA_EVENT_LOSS: + dctcp_react_to_loss(sk); + break; + default: + /* Don't care for the rest. */ + break; + } +} + +SEC("struct_ops/dctcp_cwnd_undo") +__u32 BPF_PROG(dctcp_cwnd_undo, struct sock *sk) +{ + const struct dctcp *ca = inet_csk_ca(sk); + + return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd); +} + +SEC("struct_ops/tcp_reno_cong_avoid") +void BPF_PROG(tcp_reno_cong_avoid, struct sock *sk, __u32 ack, __u32 acked) +{ + struct tcp_sock *tp = tcp_sk(sk); + + if (!tcp_is_cwnd_limited(sk)) + return; + + /* In "safe" area, increase. */ + if (tcp_in_slow_start(tp)) { + acked = tcp_slow_start(tp, acked); + if (!acked) + return; + } + /* In dangerous area, increase slowly. */ + tcp_cong_avoid_ai(tp, tp->snd_cwnd, acked); +} + +SEC(".struct_ops") +struct tcp_congestion_ops dctcp_nouse = { + .init = (void *)dctcp_init, + .set_state = (void *)dctcp_state, + .flags = TCP_CONG_NEEDS_ECN, + .name = "bpf_dctcp_nouse", +}; + +SEC(".struct_ops") +struct tcp_congestion_ops dctcp = { + .init = (void *)dctcp_init, + .in_ack_event = (void *)dctcp_update_alpha, + .cwnd_event = (void *)dctcp_cwnd_event, + .ssthresh = (void *)dctcp_ssthresh, + .cong_avoid = (void *)tcp_reno_cong_avoid, + .undo_cwnd = (void *)dctcp_cwnd_undo, + .set_state = (void *)dctcp_state, + .flags = TCP_CONG_NEEDS_ECN, + .name = "bpf_dctcp", +}; diff --git a/tools/testing/selftests/bpf/progs/bpf_flow.c b/tools/testing/selftests/bpf/progs/bpf_flow.c index 040a44206f29..9941f0ba471e 100644 --- a/tools/testing/selftests/bpf/progs/bpf_flow.c +++ b/tools/testing/selftests/bpf/progs/bpf_flow.c @@ -16,8 +16,8 @@ #include <sys/socket.h> #include <linux/if_tunnel.h> #include <linux/mpls.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; #define PROG(F) SEC(#F) int bpf_func_##F diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c index 1fd244d35ba9..75085119c5bb 100644 --- a/tools/testing/selftests/bpf/progs/connect4_prog.c +++ b/tools/testing/selftests/bpf/progs/connect4_prog.c @@ -9,8 +9,8 @@ #include <linux/in6.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #define SRC_REWRITE_IP4 0x7f000004U #define DST_REWRITE_IP4 0x7f000001U diff --git a/tools/testing/selftests/bpf/progs/connect6_prog.c b/tools/testing/selftests/bpf/progs/connect6_prog.c index 26397ab7b3c7..506d0f81a375 100644 --- a/tools/testing/selftests/bpf/progs/connect6_prog.c +++ b/tools/testing/selftests/bpf/progs/connect6_prog.c @@ -9,8 +9,8 @@ #include <linux/in6.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #define SRC_REWRITE_IP6_0 0 #define SRC_REWRITE_IP6_1 0 diff --git a/tools/testing/selftests/bpf/progs/dev_cgroup.c b/tools/testing/selftests/bpf/progs/dev_cgroup.c index ce41a3475f27..8924e06bdef0 100644 --- a/tools/testing/selftests/bpf/progs/dev_cgroup.c +++ b/tools/testing/selftests/bpf/progs/dev_cgroup.c @@ -7,7 +7,7 @@ #include <linux/bpf.h> #include <linux/version.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> SEC("cgroup/dev") int bpf_prog1(struct bpf_cgroup_dev_ctx *ctx) diff --git a/tools/testing/selftests/bpf/progs/fentry_test.c b/tools/testing/selftests/bpf/progs/fentry_test.c index 615f7c6bca77..38d3a82144ca 100644 --- a/tools/testing/selftests/bpf/progs/fentry_test.c +++ b/tools/testing/selftests/bpf/progs/fentry_test.c @@ -1,43 +1,46 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2019 Facebook */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "bpf_trace_helpers.h" char _license[] SEC("license") = "GPL"; __u64 test1_result = 0; -BPF_TRACE_1("fentry/bpf_fentry_test1", test1, int, a) +SEC("fentry/bpf_fentry_test1") +int BPF_PROG(test1, int a) { test1_result = a == 1; return 0; } __u64 test2_result = 0; -BPF_TRACE_2("fentry/bpf_fentry_test2", test2, int, a, __u64, b) +SEC("fentry/bpf_fentry_test2") +int BPF_PROG(test2, int a, __u64 b) { test2_result = a == 2 && b == 3; return 0; } __u64 test3_result = 0; -BPF_TRACE_3("fentry/bpf_fentry_test3", test3, char, a, int, b, __u64, c) +SEC("fentry/bpf_fentry_test3") +int BPF_PROG(test3, char a, int b, __u64 c) { test3_result = a == 4 && b == 5 && c == 6; return 0; } __u64 test4_result = 0; -BPF_TRACE_4("fentry/bpf_fentry_test4", test4, - void *, a, char, b, int, c, __u64, d) +SEC("fentry/bpf_fentry_test4") +int BPF_PROG(test4, void *a, char b, int c, __u64 d) { test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10; return 0; } __u64 test5_result = 0; -BPF_TRACE_5("fentry/bpf_fentry_test5", test5, - __u64, a, void *, b, short, c, int, d, __u64, e) +SEC("fentry/bpf_fentry_test5") +int BPF_PROG(test5, __u64 a, void *b, short c, int d, __u64 e) { test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 && e == 15; @@ -45,8 +48,8 @@ BPF_TRACE_5("fentry/bpf_fentry_test5", test5, } __u64 test6_result = 0; -BPF_TRACE_6("fentry/bpf_fentry_test6", test6, - __u64, a, void *, b, short, c, int, d, void *, e, __u64, f) +SEC("fentry/bpf_fentry_test6") +int BPF_PROG(test6, __u64 a, void *b, short c, int d, void * e, __u64 f) { test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 && e == (void *)20 && f == 21; diff --git a/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c index 2d211ee98a1c..c329fccf9842 100644 --- a/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c +++ b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c @@ -1,7 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2019 Facebook */ +#include <linux/stddef.h> +#include <linux/ipv6.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "bpf_trace_helpers.h" struct sk_buff { @@ -9,8 +12,8 @@ struct sk_buff { }; __u64 test_result = 0; -BPF_TRACE_2("fexit/test_pkt_access", test_main, - struct sk_buff *, skb, int, ret) +SEC("fexit/test_pkt_access") +int BPF_PROG(test_main, struct sk_buff *skb, int ret) { int len; @@ -24,8 +27,8 @@ BPF_TRACE_2("fexit/test_pkt_access", test_main, } __u64 test_result_subprog1 = 0; -BPF_TRACE_2("fexit/test_pkt_access_subprog1", test_subprog1, - struct sk_buff *, skb, int, ret) +SEC("fexit/test_pkt_access_subprog1") +int BPF_PROG(test_subprog1, struct sk_buff *skb, int ret) { int len; @@ -79,4 +82,73 @@ int test_subprog2(struct args_subprog2 *ctx) test_result_subprog2 = 1; return 0; } + +__u64 test_result_subprog3 = 0; +SEC("fexit/test_pkt_access_subprog3") +int BPF_PROG(test_subprog3, int val, struct sk_buff *skb, int ret) +{ + int len; + + __builtin_preserve_access_index(({ + len = skb->len; + })); + if (len != 74 || ret != 74 * val || val != 3) + return 0; + test_result_subprog3 = 1; + return 0; +} + +__u64 test_get_skb_len = 0; +SEC("freplace/get_skb_len") +int new_get_skb_len(struct __sk_buff *skb) +{ + int len = skb->len; + + if (len != 74) + return 0; + test_get_skb_len = 1; + return 74; /* original get_skb_len() returns skb->len */ +} + +__u64 test_get_skb_ifindex = 0; +SEC("freplace/get_skb_ifindex") +int new_get_skb_ifindex(int val, struct __sk_buff *skb, int var) +{ + void *data_end = (void *)(long)skb->data_end; + void *data = (void *)(long)skb->data; + struct ipv6hdr ip6, *ip6p; + int ifindex = skb->ifindex; + __u32 eth_proto; + __u32 nh_off; + + /* check that BPF extension can read packet via direct packet access */ + if (data + 14 + sizeof(ip6) > data_end) + return 0; + ip6p = data + 14; + + if (ip6p->nexthdr != 6 || ip6p->payload_len != __bpf_constant_htons(123)) + return 0; + + /* check that legacy packet access helper works too */ + if (bpf_skb_load_bytes(skb, 14, &ip6, sizeof(ip6)) < 0) + return 0; + ip6p = &ip6; + if (ip6p->nexthdr != 6 || ip6p->payload_len != __bpf_constant_htons(123)) + return 0; + + if (ifindex != 1 || val != 3 || var != 1) + return 0; + test_get_skb_ifindex = 1; + return 3; /* original get_skb_ifindex() returns val * ifindex * var */ +} + +volatile __u64 test_get_constant = 0; +SEC("freplace/get_constant") +int new_get_constant(long val) +{ + if (val != 123) + return 0; + test_get_constant = 1; + return test_get_constant; /* original get_constant() returns val - 122 */ +} char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c index ebc0ab7f0f5c..92f3fa47cf40 100644 --- a/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c +++ b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2019 Facebook */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "bpf_trace_helpers.h" struct sk_buff { @@ -9,8 +9,9 @@ struct sk_buff { }; __u64 test_result = 0; -BPF_TRACE_2("fexit/test_pkt_md_access", test_main2, - struct sk_buff *, skb, int, ret) + +SEC("fexit/test_pkt_md_access") +int BPF_PROG(test_main2, struct sk_buff *skb, int ret) { int len; diff --git a/tools/testing/selftests/bpf/progs/fexit_test.c b/tools/testing/selftests/bpf/progs/fexit_test.c index 86db0d60fb6e..348109b9ea07 100644 --- a/tools/testing/selftests/bpf/progs/fexit_test.c +++ b/tools/testing/selftests/bpf/progs/fexit_test.c @@ -1,45 +1,47 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2019 Facebook */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "bpf_trace_helpers.h" char _license[] SEC("license") = "GPL"; __u64 test1_result = 0; -BPF_TRACE_2("fexit/bpf_fentry_test1", test1, int, a, int, ret) +SEC("fexit/bpf_fentry_test1") +int BPF_PROG(test1, int a, int ret) { test1_result = a == 1 && ret == 2; return 0; } __u64 test2_result = 0; -BPF_TRACE_3("fexit/bpf_fentry_test2", test2, int, a, __u64, b, int, ret) +SEC("fexit/bpf_fentry_test2") +int BPF_PROG(test2, int a, __u64 b, int ret) { test2_result = a == 2 && b == 3 && ret == 5; return 0; } __u64 test3_result = 0; -BPF_TRACE_4("fexit/bpf_fentry_test3", test3, char, a, int, b, __u64, c, int, ret) +SEC("fexit/bpf_fentry_test3") +int BPF_PROG(test3, char a, int b, __u64 c, int ret) { test3_result = a == 4 && b == 5 && c == 6 && ret == 15; return 0; } __u64 test4_result = 0; -BPF_TRACE_5("fexit/bpf_fentry_test4", test4, - void *, a, char, b, int, c, __u64, d, int, ret) +SEC("fexit/bpf_fentry_test4") +int BPF_PROG(test4, void *a, char b, int c, __u64 d, int ret) { - test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10 && ret == 34; return 0; } __u64 test5_result = 0; -BPF_TRACE_6("fexit/bpf_fentry_test5", test5, - __u64, a, void *, b, short, c, int, d, __u64, e, int, ret) +SEC("fexit/bpf_fentry_test5") +int BPF_PROG(test5, __u64 a, void *b, short c, int d, __u64 e, int ret) { test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 && e == 15 && ret == 65; @@ -47,9 +49,8 @@ BPF_TRACE_6("fexit/bpf_fentry_test5", test5, } __u64 test6_result = 0; -BPF_TRACE_7("fexit/bpf_fentry_test6", test6, - __u64, a, void *, b, short, c, int, d, void *, e, __u64, f, - int, ret) +SEC("fexit/bpf_fentry_test6") +int BPF_PROG(test6, __u64 a, void *b, short c, int d, void *e, __u64 f, int ret) { test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 && e == (void *)20 && f == 21 && ret == 111; diff --git a/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c b/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c index 16c54ade6888..6b42db2fe391 100644 --- a/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c +++ b/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c @@ -2,7 +2,7 @@ // Copyright (c) 2018 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/kfree_skb.c b/tools/testing/selftests/bpf/progs/kfree_skb.c index 974d6f3bb319..8f48a909f079 100644 --- a/tools/testing/selftests/bpf/progs/kfree_skb.c +++ b/tools/testing/selftests/bpf/progs/kfree_skb.c @@ -2,8 +2,8 @@ // Copyright (c) 2019 Facebook #include <linux/bpf.h> #include <stdbool.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "bpf_trace_helpers.h" char _license[] SEC("license") = "GPL"; @@ -57,8 +57,8 @@ struct meta { /* TRACE_EVENT(kfree_skb, * TP_PROTO(struct sk_buff *skb, void *location), */ -BPF_TRACE_2("tp_btf/kfree_skb", trace_kfree_skb, - struct sk_buff *, skb, void *, location) +SEC("tp_btf/kfree_skb") +int BPF_PROG(trace_kfree_skb, struct sk_buff *skb, void *location) { struct net_device *dev; struct callback_head *ptr; @@ -114,9 +114,9 @@ static volatile struct { bool fexit_test_ok; } result; -BPF_TRACE_3("fentry/eth_type_trans", fentry_eth_type_trans, - struct sk_buff *, skb, struct net_device *, dev, - unsigned short, protocol) +SEC("fentry/eth_type_trans") +int BPF_PROG(fentry_eth_type_trans, struct sk_buff *skb, struct net_device *dev, + unsigned short protocol) { int len, ifindex; @@ -132,9 +132,9 @@ BPF_TRACE_3("fentry/eth_type_trans", fentry_eth_type_trans, return 0; } -BPF_TRACE_3("fexit/eth_type_trans", fexit_eth_type_trans, - struct sk_buff *, skb, struct net_device *, dev, - unsigned short, protocol) +SEC("fexit/eth_type_trans") +int BPF_PROG(fexit_eth_type_trans, struct sk_buff *skb, struct net_device *dev, + unsigned short protocol) { int len, ifindex; diff --git a/tools/testing/selftests/bpf/progs/loop1.c b/tools/testing/selftests/bpf/progs/loop1.c index 40ac722a9da5..50e66772c046 100644 --- a/tools/testing/selftests/bpf/progs/loop1.c +++ b/tools/testing/selftests/bpf/progs/loop1.c @@ -6,8 +6,8 @@ #include <stddef.h> #include <stdbool.h> #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_tracing.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/loop2.c b/tools/testing/selftests/bpf/progs/loop2.c index bb80f29aa7f7..947bb7e988c2 100644 --- a/tools/testing/selftests/bpf/progs/loop2.c +++ b/tools/testing/selftests/bpf/progs/loop2.c @@ -6,8 +6,8 @@ #include <stddef.h> #include <stdbool.h> #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_tracing.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/loop3.c b/tools/testing/selftests/bpf/progs/loop3.c index 2b9165a7afe1..76e93b31c14b 100644 --- a/tools/testing/selftests/bpf/progs/loop3.c +++ b/tools/testing/selftests/bpf/progs/loop3.c @@ -6,8 +6,8 @@ #include <stddef.h> #include <stdbool.h> #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_tracing.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/loop4.c b/tools/testing/selftests/bpf/progs/loop4.c index 650859022771..b35337926d66 100644 --- a/tools/testing/selftests/bpf/progs/loop4.c +++ b/tools/testing/selftests/bpf/progs/loop4.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/loop5.c b/tools/testing/selftests/bpf/progs/loop5.c index 28d1d668f07c..913791923fa3 100644 --- a/tools/testing/selftests/bpf/progs/loop5.c +++ b/tools/testing/selftests/bpf/progs/loop5.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define barrier() __asm__ __volatile__("": : :"memory") char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/netcnt_prog.c b/tools/testing/selftests/bpf/progs/netcnt_prog.c index 38a997852cad..d071adf178bd 100644 --- a/tools/testing/selftests/bpf/progs/netcnt_prog.c +++ b/tools/testing/selftests/bpf/progs/netcnt_prog.c @@ -2,7 +2,7 @@ #include <linux/bpf.h> #include <linux/version.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "netcnt_common.h" #define MAX_BPS (3 * 1024 * 1024) diff --git a/tools/testing/selftests/bpf/progs/pyperf.h b/tools/testing/selftests/bpf/progs/pyperf.h index 71d383cc9b85..cc615b82b56e 100644 --- a/tools/testing/selftests/bpf/progs/pyperf.h +++ b/tools/testing/selftests/bpf/progs/pyperf.h @@ -6,7 +6,7 @@ #include <stddef.h> #include <stdbool.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define FUNCTION_NAME_LEN 64 #define FILE_NAME_LEN 128 @@ -154,7 +154,12 @@ struct { __uint(value_size, sizeof(long long) * 127); } stackmap SEC(".maps"); -static __always_inline int __on_event(struct pt_regs *ctx) +#ifdef GLOBAL_FUNC +__attribute__((noinline)) +#else +static __always_inline +#endif +int __on_event(struct bpf_raw_tracepoint_args *ctx) { uint64_t pid_tgid = bpf_get_current_pid_tgid(); pid_t pid = (pid_t)(pid_tgid >> 32); @@ -254,7 +259,7 @@ static __always_inline int __on_event(struct pt_regs *ctx) } SEC("raw_tracepoint/kfree_skb") -int on_event(struct pt_regs* ctx) +int on_event(struct bpf_raw_tracepoint_args* ctx) { int i, ret = 0; ret |= __on_event(ctx); diff --git a/tools/testing/selftests/bpf/progs/pyperf_global.c b/tools/testing/selftests/bpf/progs/pyperf_global.c new file mode 100644 index 000000000000..079e78a7562b --- /dev/null +++ b/tools/testing/selftests/bpf/progs/pyperf_global.c @@ -0,0 +1,5 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2020 Facebook */ +#define STACK_MAX_LEN 50 +#define GLOBAL_FUNC +#include "pyperf.h" diff --git a/tools/testing/selftests/bpf/progs/sample_map_ret0.c b/tools/testing/selftests/bpf/progs/sample_map_ret0.c index 0756303676ac..1612a32007b6 100644 --- a/tools/testing/selftests/bpf/progs/sample_map_ret0.c +++ b/tools/testing/selftests/bpf/progs/sample_map_ret0.c @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct bpf_map_def SEC("maps") htab = { .type = BPF_MAP_TYPE_HASH, diff --git a/tools/testing/selftests/bpf/progs/sendmsg4_prog.c b/tools/testing/selftests/bpf/progs/sendmsg4_prog.c index a91536b1c47e..092d9da536f3 100644 --- a/tools/testing/selftests/bpf/progs/sendmsg4_prog.c +++ b/tools/testing/selftests/bpf/progs/sendmsg4_prog.c @@ -5,8 +5,8 @@ #include <linux/bpf.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #define SRC1_IP4 0xAC100001U /* 172.16.0.1 */ #define SRC2_IP4 0x00000000U diff --git a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c index a68062820410..255a432bc163 100644 --- a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c +++ b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c @@ -5,8 +5,8 @@ #include <linux/bpf.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #define SRC_REWRITE_IP6_0 0 #define SRC_REWRITE_IP6_1 0 diff --git a/tools/testing/selftests/bpf/progs/socket_cookie_prog.c b/tools/testing/selftests/bpf/progs/socket_cookie_prog.c index e4440fdd94cb..0cb5656a22b0 100644 --- a/tools/testing/selftests/bpf/progs/socket_cookie_prog.c +++ b/tools/testing/selftests/bpf/progs/socket_cookie_prog.c @@ -4,8 +4,8 @@ #include <linux/bpf.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> struct socket_cookie { __u64 cookie_key; diff --git a/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c b/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c index 9390e0244259..a5c6d5903b22 100644 --- a/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c +++ b/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c @@ -1,6 +1,6 @@ #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c b/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c index e80484d98a1a..fdb4bf4408fa 100644 --- a/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c +++ b/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c @@ -1,7 +1,7 @@ #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c b/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c index 433e23918a62..4797dc985064 100644 --- a/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c +++ b/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c @@ -1,6 +1,6 @@ #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/sockopt_inherit.c b/tools/testing/selftests/bpf/progs/sockopt_inherit.c index dede0fcd6102..c6d428a8d785 100644 --- a/tools/testing/selftests/bpf/progs/sockopt_inherit.c +++ b/tools/testing/selftests/bpf/progs/sockopt_inherit.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; __u32 _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/sockopt_multi.c b/tools/testing/selftests/bpf/progs/sockopt_multi.c index 4afd2595c08e..9d8c212dde9f 100644 --- a/tools/testing/selftests/bpf/progs/sockopt_multi.c +++ b/tools/testing/selftests/bpf/progs/sockopt_multi.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <netinet/in.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; __u32 _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/sockopt_sk.c b/tools/testing/selftests/bpf/progs/sockopt_sk.c index 1bafbb944e37..d5a5eeb5fb52 100644 --- a/tools/testing/selftests/bpf/progs/sockopt_sk.c +++ b/tools/testing/selftests/bpf/progs/sockopt_sk.c @@ -3,7 +3,7 @@ #include <netinet/in.h> #include <netinet/tcp.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; __u32 _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/strobemeta.h b/tools/testing/selftests/bpf/progs/strobemeta.h index 4bf16e0a1b0e..ad61b722a9de 100644 --- a/tools/testing/selftests/bpf/progs/strobemeta.h +++ b/tools/testing/selftests/bpf/progs/strobemeta.h @@ -8,7 +8,7 @@ #include <linux/ptrace.h> #include <linux/sched.h> #include <linux/types.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> typedef uint32_t pid_t; struct task_struct {}; diff --git a/tools/testing/selftests/bpf/progs/tailcall1.c b/tools/testing/selftests/bpf/progs/tailcall1.c index 63531e1a9fa4..1f407e65ae52 100644 --- a/tools/testing/selftests/bpf/progs/tailcall1.c +++ b/tools/testing/selftests/bpf/progs/tailcall1.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_PROG_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/tailcall2.c b/tools/testing/selftests/bpf/progs/tailcall2.c index 21c85c477210..a093e739cf0e 100644 --- a/tools/testing/selftests/bpf/progs/tailcall2.c +++ b/tools/testing/selftests/bpf/progs/tailcall2.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_PROG_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/tailcall3.c b/tools/testing/selftests/bpf/progs/tailcall3.c index 1ecae198b8c1..cabda877cf0a 100644 --- a/tools/testing/selftests/bpf/progs/tailcall3.c +++ b/tools/testing/selftests/bpf/progs/tailcall3.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_PROG_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/tailcall4.c b/tools/testing/selftests/bpf/progs/tailcall4.c index 499388758119..f82075b47d7d 100644 --- a/tools/testing/selftests/bpf/progs/tailcall4.c +++ b/tools/testing/selftests/bpf/progs/tailcall4.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_PROG_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/tailcall5.c b/tools/testing/selftests/bpf/progs/tailcall5.c index 49c64eb53f19..ce5450744fd4 100644 --- a/tools/testing/selftests/bpf/progs/tailcall5.c +++ b/tools/testing/selftests/bpf/progs/tailcall5.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_PROG_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/tcp_rtt.c b/tools/testing/selftests/bpf/progs/tcp_rtt.c index 2cf813a06b83..0cb3204ddb18 100644 --- a/tools/testing/selftests/bpf/progs/tcp_rtt.c +++ b/tools/testing/selftests/bpf/progs/tcp_rtt.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; __u32 _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_adjust_tail.c b/tools/testing/selftests/bpf/progs/test_adjust_tail.c index 4cd5e860c903..b7fc85769bdc 100644 --- a/tools/testing/selftests/bpf/progs/test_adjust_tail.c +++ b/tools/testing/selftests/bpf/progs/test_adjust_tail.c @@ -7,7 +7,7 @@ */ #include <linux/bpf.h> #include <linux/if_ether.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_attach_probe.c b/tools/testing/selftests/bpf/progs/test_attach_probe.c index 221b69700625..dd8fae6660ab 100644 --- a/tools/testing/selftests/bpf/progs/test_attach_probe.c +++ b/tools/testing/selftests/bpf/progs/test_attach_probe.c @@ -3,7 +3,7 @@ #include <linux/ptrace.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int kprobe_res = 0; int kretprobe_res = 0; diff --git a/tools/testing/selftests/bpf/progs/test_btf_haskv.c b/tools/testing/selftests/bpf/progs/test_btf_haskv.c index 62ad7e22105e..88b0566da13d 100644 --- a/tools/testing/selftests/bpf/progs/test_btf_haskv.c +++ b/tools/testing/selftests/bpf/progs/test_btf_haskv.c @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2018 Facebook */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "bpf_legacy.h" int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_btf_newkv.c b/tools/testing/selftests/bpf/progs/test_btf_newkv.c index fb8d91a1dbe0..a924e53c8e9d 100644 --- a/tools/testing/selftests/bpf/progs/test_btf_newkv.c +++ b/tools/testing/selftests/bpf/progs/test_btf_newkv.c @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2018 Facebook */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "bpf_legacy.h" int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_btf_nokv.c b/tools/testing/selftests/bpf/progs/test_btf_nokv.c index 3f4422044759..983aedd1c072 100644 --- a/tools/testing/selftests/bpf/progs/test_btf_nokv.c +++ b/tools/testing/selftests/bpf/progs/test_btf_nokv.c @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2018 Facebook */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_core_extern.c b/tools/testing/selftests/bpf/progs/test_core_extern.c index 9bfc91d9d004..3ac3603ad53d 100644 --- a/tools/testing/selftests/bpf/progs/test_core_extern.c +++ b/tools/testing/selftests/bpf/progs/test_core_extern.c @@ -5,7 +5,7 @@ #include <stdbool.h> #include <linux/ptrace.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> /* non-existing BPF helper, to test dead code elimination */ static int (*bpf_missing_helper)(const void *arg1, int arg2) = (void *) 999; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c b/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c index 053b86f6b53f..51b3f79df523 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c index edc0f7c9e56d..56aec20212b5 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c index 6c20e433558b..ab1e647aeb31 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c b/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c index 1b7f0ae49cfb..7e45e2bdf6cd 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c b/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c index b5dbeef540fd..525acc2f841b 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c b/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c index c78ab6d28a14..6b5290739806 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c b/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c index 270de441b60a..aba928fd60d3 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c b/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c index 292a5c4ee76a..d5756dbdef82 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c b/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c index 0b28bfacc8fd..8b533db4a7a5 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c b/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c index 39279bf0c9db..2b4b6d49c677 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c b/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c index ea57973cdd19..2a8975678aa6 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c b/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c index d1eb59d4ea64..ca61a5183b88 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_size.c b/tools/testing/selftests/bpf/progs/test_core_reloc_size.c index 9e091124d3bd..d7fb6cfc7891 100644 --- a/tools/testing/selftests/bpf/progs/test_core_reloc_size.c +++ b/tools/testing/selftests/bpf/progs/test_core_reloc_size.c @@ -3,8 +3,8 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" -#include "bpf_core_read.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c index 6a4a8f57f174..29817a703984 100644 --- a/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c +++ b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> /* Permit pretty deep stack traces */ #define MAX_STACK_RAWTP 100 diff --git a/tools/testing/selftests/bpf/progs/test_global_data.c b/tools/testing/selftests/bpf/progs/test_global_data.c index 32a6073acb99..dd7a4d3dbc0d 100644 --- a/tools/testing/selftests/bpf/progs/test_global_data.c +++ b/tools/testing/selftests/bpf/progs/test_global_data.c @@ -5,7 +5,7 @@ #include <linux/pkt_cls.h> #include <string.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_ARRAY); diff --git a/tools/testing/selftests/bpf/progs/test_global_func1.c b/tools/testing/selftests/bpf/progs/test_global_func1.c new file mode 100644 index 000000000000..880260f6d536 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func1.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#include <stddef.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +#ifndef MAX_STACK +#define MAX_STACK (512 - 3 * 32 + 8) +#endif + +static __attribute__ ((noinline)) +int f0(int var, struct __sk_buff *skb) +{ + return skb->len; +} + +__attribute__ ((noinline)) +int f1(struct __sk_buff *skb) +{ + volatile char buf[MAX_STACK] = {}; + + return f0(0, skb) + skb->len; +} + +int f3(int, struct __sk_buff *skb, int); + +__attribute__ ((noinline)) +int f2(int val, struct __sk_buff *skb) +{ + return f1(skb) + f3(val, skb, 1); +} + +__attribute__ ((noinline)) +int f3(int val, struct __sk_buff *skb, int var) +{ + volatile char buf[MAX_STACK] = {}; + + return skb->ifindex * val * var; +} + +SEC("classifier/test") +int test_cls(struct __sk_buff *skb) +{ + return f0(1, skb) + f1(skb) + f2(2, skb) + f3(3, skb, 4); +} diff --git a/tools/testing/selftests/bpf/progs/test_global_func2.c b/tools/testing/selftests/bpf/progs/test_global_func2.c new file mode 100644 index 000000000000..2c18d82923a2 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func2.c @@ -0,0 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#define MAX_STACK (512 - 3 * 32) +#include "test_global_func1.c" diff --git a/tools/testing/selftests/bpf/progs/test_global_func3.c b/tools/testing/selftests/bpf/progs/test_global_func3.c new file mode 100644 index 000000000000..86f0ecb304fc --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func3.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#include <stddef.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +__attribute__ ((noinline)) +int f1(struct __sk_buff *skb) +{ + return skb->len; +} + +__attribute__ ((noinline)) +int f2(int val, struct __sk_buff *skb) +{ + return f1(skb) + val; +} + +__attribute__ ((noinline)) +int f3(int val, struct __sk_buff *skb, int var) +{ + return f2(var, skb) + val; +} + +__attribute__ ((noinline)) +int f4(struct __sk_buff *skb) +{ + return f3(1, skb, 2); +} + +__attribute__ ((noinline)) +int f5(struct __sk_buff *skb) +{ + return f4(skb); +} + +__attribute__ ((noinline)) +int f6(struct __sk_buff *skb) +{ + return f5(skb); +} + +__attribute__ ((noinline)) +int f7(struct __sk_buff *skb) +{ + return f6(skb); +} + +#ifndef NO_FN8 +__attribute__ ((noinline)) +int f8(struct __sk_buff *skb) +{ + return f7(skb); +} +#endif + +SEC("classifier/test") +int test_cls(struct __sk_buff *skb) +{ +#ifndef NO_FN8 + return f8(skb); +#else + return f7(skb); +#endif +} diff --git a/tools/testing/selftests/bpf/progs/test_global_func4.c b/tools/testing/selftests/bpf/progs/test_global_func4.c new file mode 100644 index 000000000000..610f75edf276 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func4.c @@ -0,0 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#define NO_FN8 +#include "test_global_func3.c" diff --git a/tools/testing/selftests/bpf/progs/test_global_func5.c b/tools/testing/selftests/bpf/progs/test_global_func5.c new file mode 100644 index 000000000000..260c25b827ef --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func5.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#include <stddef.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +__attribute__ ((noinline)) +int f1(struct __sk_buff *skb) +{ + return skb->len; +} + +int f3(int, struct __sk_buff *skb); + +__attribute__ ((noinline)) +int f2(int val, struct __sk_buff *skb) +{ + return f1(skb) + f3(val, (void *)&val); /* type mismatch */ +} + +__attribute__ ((noinline)) +int f3(int val, struct __sk_buff *skb) +{ + return skb->ifindex * val; +} + +SEC("classifier/test") +int test_cls(struct __sk_buff *skb) +{ + return f1(skb) + f2(2, skb) + f3(3, skb); +} diff --git a/tools/testing/selftests/bpf/progs/test_global_func6.c b/tools/testing/selftests/bpf/progs/test_global_func6.c new file mode 100644 index 000000000000..69e19c64e10b --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func6.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#include <stddef.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +__attribute__ ((noinline)) +int f1(struct __sk_buff *skb) +{ + return skb->len; +} + +int f3(int, struct __sk_buff *skb); + +__attribute__ ((noinline)) +int f2(int val, struct __sk_buff *skb) +{ + return f1(skb) + f3(val, skb + 1); /* type mismatch */ +} + +__attribute__ ((noinline)) +int f3(int val, struct __sk_buff *skb) +{ + return skb->ifindex * val; +} + +SEC("classifier/test") +int test_cls(struct __sk_buff *skb) +{ + return f1(skb) + f2(2, skb) + f3(3, skb); +} diff --git a/tools/testing/selftests/bpf/progs/test_global_func7.c b/tools/testing/selftests/bpf/progs/test_global_func7.c new file mode 100644 index 000000000000..309b3f6136bd --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func7.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2020 Facebook */ +#include <stddef.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +__attribute__ ((noinline)) +void foo(struct __sk_buff *skb) +{ + skb->tc_index = 0; +} + +SEC("classifier/test") +int test_cls(struct __sk_buff *skb) +{ + foo(skb); + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/test_l4lb.c b/tools/testing/selftests/bpf/progs/test_l4lb.c index 1d652ee8e73d..33493911d87a 100644 --- a/tools/testing/selftests/bpf/progs/test_l4lb.c +++ b/tools/testing/selftests/bpf/progs/test_l4lb.c @@ -17,9 +17,9 @@ #include <linux/icmpv6.h> #include <linux/tcp.h> #include <linux/udp.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "test_iptunnel_common.h" -#include "bpf_endian.h" +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c b/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c index 2e4efe70b1e5..28351936a438 100644 --- a/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c +++ b/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c @@ -13,9 +13,9 @@ #include <linux/icmpv6.h> #include <linux/tcp.h> #include <linux/udp.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #include "test_iptunnel_common.h" -#include "bpf_endian.h" +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c b/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c index 4147130cc3b7..7a6620671a83 100644 --- a/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c +++ b/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c @@ -5,7 +5,7 @@ #include <linux/bpf.h> #include <linux/lirc.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> SEC("lirc_mode2") int bpf_decoder(unsigned int *sample) diff --git a/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c b/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c index c957d6dfe6d7..d6cb986e7533 100644 --- a/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c +++ b/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c @@ -4,8 +4,8 @@ #include <linux/bpf.h> #include <linux/ip.h> #include <linux/ipv6.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> struct grehdr { __be16 flags; diff --git a/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c b/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c index 41a3ebcd593d..48ff2b2ad5e7 100644 --- a/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c +++ b/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c @@ -3,8 +3,8 @@ #include <errno.h> #include <linux/seg6_local.h> #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> /* Packet parsing state machine helpers. */ #define cursor_advance(_cursor, _len) \ diff --git a/tools/testing/selftests/bpf/progs/test_map_in_map.c b/tools/testing/selftests/bpf/progs/test_map_in_map.c index 113226115365..1cfeb940cf9f 100644 --- a/tools/testing/selftests/bpf/progs/test_map_in_map.c +++ b/tools/testing/selftests/bpf/progs/test_map_in_map.c @@ -3,7 +3,7 @@ #include <stddef.h> #include <linux/bpf.h> #include <linux/types.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS); diff --git a/tools/testing/selftests/bpf/progs/test_map_lock.c b/tools/testing/selftests/bpf/progs/test_map_lock.c index bb7ce35f691b..b5c07ae7b68f 100644 --- a/tools/testing/selftests/bpf/progs/test_map_lock.c +++ b/tools/testing/selftests/bpf/progs/test_map_lock.c @@ -2,7 +2,7 @@ // Copyright (c) 2019 Facebook #include <linux/bpf.h> #include <linux/version.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define VAR_NUM 16 diff --git a/tools/testing/selftests/bpf/progs/test_mmap.c b/tools/testing/selftests/bpf/progs/test_mmap.c index e808791b7047..6239596cd14e 100644 --- a/tools/testing/selftests/bpf/progs/test_mmap.c +++ b/tools/testing/selftests/bpf/progs/test_mmap.c @@ -3,7 +3,7 @@ #include <linux/bpf.h> #include <stdint.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_obj_id.c b/tools/testing/selftests/bpf/progs/test_obj_id.c index 3d30c02bdae9..98b9de2fafd0 100644 --- a/tools/testing/selftests/bpf/progs/test_obj_id.c +++ b/tools/testing/selftests/bpf/progs/test_obj_id.c @@ -4,7 +4,7 @@ #include <stddef.h> #include <linux/bpf.h> #include <linux/pkt_cls.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> /* It is a dumb bpf program such that it must have no * issue to be loaded since testing the verifier is diff --git a/tools/testing/selftests/bpf/progs/test_overhead.c b/tools/testing/selftests/bpf/progs/test_overhead.c index 96c0124a04ba..bfe9fbcb9684 100644 --- a/tools/testing/selftests/bpf/progs/test_overhead.c +++ b/tools/testing/selftests/bpf/progs/test_overhead.c @@ -1,39 +1,45 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2019 Facebook */ +#include <stdbool.h> +#include <stddef.h> #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_tracing.h" +#include <linux/ptrace.h> +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> #include "bpf_trace_helpers.h" +struct task_struct; + SEC("kprobe/__set_task_comm") -int prog1(struct pt_regs *ctx) +int BPF_KPROBE(prog1, struct task_struct *tsk, const char *buf, bool exec) { - return 0; + return !tsk; } SEC("kretprobe/__set_task_comm") -int prog2(struct pt_regs *ctx) +int BPF_KRETPROBE(prog2, + struct task_struct *tsk, const char *buf, bool exec, + int ret) { - return 0; + return !PT_REGS_PARM1(ctx) && ret; } SEC("raw_tp/task_rename") int prog3(struct bpf_raw_tracepoint_args *ctx) { - return 0; + return !ctx->args[0]; } -struct task_struct; -BPF_TRACE_3("fentry/__set_task_comm", prog4, - struct task_struct *, tsk, const char *, buf, __u8, exec) +SEC("fentry/__set_task_comm") +int BPF_PROG(prog4, struct task_struct *tsk, const char *buf, bool exec) { - return 0; + return !tsk; } -BPF_TRACE_3("fexit/__set_task_comm", prog5, - struct task_struct *, tsk, const char *, buf, __u8, exec) +SEC("fexit/__set_task_comm") +int BPF_PROG(prog5, struct task_struct *tsk, const char *buf, bool exec) { - return 0; + return !tsk; } char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_perf_buffer.c b/tools/testing/selftests/bpf/progs/test_perf_buffer.c index 07c09ca5546a..ebfcc9f50c35 100644 --- a/tools/testing/selftests/bpf/progs/test_perf_buffer.c +++ b/tools/testing/selftests/bpf/progs/test_perf_buffer.c @@ -3,7 +3,8 @@ #include <linux/ptrace.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> +#include "bpf_trace_helpers.h" struct { __uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY); @@ -12,7 +13,7 @@ struct { } perf_buf_map SEC(".maps"); SEC("kprobe/sys_nanosleep") -int handle_sys_nanosleep_entry(struct pt_regs *ctx) +int BPF_KPROBE(handle_sys_nanosleep_entry) { int cpu = bpf_get_smp_processor_id(); diff --git a/tools/testing/selftests/bpf/progs/test_pinning.c b/tools/testing/selftests/bpf/progs/test_pinning.c index f20e7e00373f..4ef2630292b2 100644 --- a/tools/testing/selftests/bpf/progs/test_pinning.c +++ b/tools/testing/selftests/bpf/progs/test_pinning.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_pinning_invalid.c b/tools/testing/selftests/bpf/progs/test_pinning_invalid.c index 51b38abe7ba1..5412e0c732c7 100644 --- a/tools/testing/selftests/bpf/progs/test_pinning_invalid.c +++ b/tools/testing/selftests/bpf/progs/test_pinning_invalid.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_pkt_access.c b/tools/testing/selftests/bpf/progs/test_pkt_access.c index 3a7b4b607ed3..e72eba4a93d2 100644 --- a/tools/testing/selftests/bpf/progs/test_pkt_access.c +++ b/tools/testing/selftests/bpf/progs/test_pkt_access.c @@ -11,8 +11,8 @@ #include <linux/in.h> #include <linux/tcp.h> #include <linux/pkt_cls.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #define barrier() __asm__ __volatile__("": : :"memory") int _version SEC("version") = 1; @@ -47,6 +47,38 @@ int test_pkt_access_subprog2(int val, volatile struct __sk_buff *skb) return skb->len * val; } +#define MAX_STACK (512 - 2 * 32) + +__attribute__ ((noinline)) +int get_skb_len(struct __sk_buff *skb) +{ + volatile char buf[MAX_STACK] = {}; + + return skb->len; +} + +__attribute__ ((noinline)) +int get_constant(long val) +{ + return val - 122; +} + +int get_skb_ifindex(int, struct __sk_buff *skb, int); + +__attribute__ ((noinline)) +int test_pkt_access_subprog3(int val, struct __sk_buff *skb) +{ + return get_skb_len(skb) * get_skb_ifindex(val, skb, get_constant(123)); +} + +__attribute__ ((noinline)) +int get_skb_ifindex(int val, struct __sk_buff *skb, int var) +{ + volatile char buf[MAX_STACK] = {}; + + return skb->ifindex * val * var; +} + SEC("classifier/test_pkt_access") int test_pkt_access(struct __sk_buff *skb) { @@ -82,6 +114,8 @@ int test_pkt_access(struct __sk_buff *skb) return TC_ACT_SHOT; if (test_pkt_access_subprog2(2, skb) != skb->len * 2) return TC_ACT_SHOT; + if (test_pkt_access_subprog3(3, skb) != skb->len * 3 * skb->ifindex) + return TC_ACT_SHOT; if (tcp) { if (((void *)(tcp) + 20) > data_end || proto != 6) return TC_ACT_SHOT; diff --git a/tools/testing/selftests/bpf/progs/test_pkt_md_access.c b/tools/testing/selftests/bpf/progs/test_pkt_md_access.c index 1db2623021ad..610c74ea9f64 100644 --- a/tools/testing/selftests/bpf/progs/test_pkt_md_access.c +++ b/tools/testing/selftests/bpf/progs/test_pkt_md_access.c @@ -5,7 +5,7 @@ #include <string.h> #include <linux/bpf.h> #include <linux/pkt_cls.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_probe_user.c b/tools/testing/selftests/bpf/progs/test_probe_user.c index 1871e2ece0c4..d556b1572cc6 100644 --- a/tools/testing/selftests/bpf/progs/test_probe_user.c +++ b/tools/testing/selftests/bpf/progs/test_probe_user.c @@ -5,13 +5,14 @@ #include <netinet/in.h> -#include "bpf_helpers.h" -#include "bpf_tracing.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_tracing.h> +#include "bpf_trace_helpers.h" static struct sockaddr_in old; SEC("kprobe/__sys_connect") -int handle_sys_connect(struct pt_regs *ctx) +int BPF_KPROBE(handle_sys_connect) { void *ptr = (void *)PT_REGS_PARM2(ctx); struct sockaddr_in new; diff --git a/tools/testing/selftests/bpf/progs/test_queue_stack_map.h b/tools/testing/selftests/bpf/progs/test_queue_stack_map.h index 0e014d3b2b36..4dd9806ad73b 100644 --- a/tools/testing/selftests/bpf/progs/test_queue_stack_map.h +++ b/tools/testing/selftests/bpf/progs/test_queue_stack_map.h @@ -6,7 +6,7 @@ #include <linux/if_ether.h> #include <linux/ip.h> #include <linux/pkt_cls.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c index 52d94e8b214d..ecbeea2df259 100644 --- a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c +++ b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c @@ -3,7 +3,7 @@ #include <linux/ptrace.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> static volatile const struct { unsigned a[4]; diff --git a/tools/testing/selftests/bpf/progs/test_seg6_loop.c b/tools/testing/selftests/bpf/progs/test_seg6_loop.c index 69880c1e7700..a7278f064368 100644 --- a/tools/testing/selftests/bpf/progs/test_seg6_loop.c +++ b/tools/testing/selftests/bpf/progs/test_seg6_loop.c @@ -3,8 +3,8 @@ #include <errno.h> #include <linux/seg6_local.h> #include <linux/bpf.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> /* Packet parsing state machine helpers. */ #define cursor_advance(_cursor, _len) \ diff --git a/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c b/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c index b1f09f5bb1cf..d69a1f2bbbfd 100644 --- a/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c +++ b/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c @@ -11,8 +11,8 @@ #include <linux/types.h> #include <linux/if_ether.h> -#include "bpf_endian.h" -#include "bpf_helpers.h" +#include <bpf/bpf_endian.h> +#include <bpf/bpf_helpers.h> #include "test_select_reuseport_common.h" int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_send_signal_kern.c b/tools/testing/selftests/bpf/progs/test_send_signal_kern.c index 0e6be01157e6..1acc91e87bfc 100644 --- a/tools/testing/selftests/bpf/progs/test_send_signal_kern.c +++ b/tools/testing/selftests/bpf/progs/test_send_signal_kern.c @@ -2,46 +2,39 @@ // Copyright (c) 2019 Facebook #include <linux/bpf.h> #include <linux/version.h> -#include "bpf_helpers.h" - -struct { - __uint(type, BPF_MAP_TYPE_ARRAY); - __uint(max_entries, 1); - __type(key, __u32); - __type(value, __u64); -} info_map SEC(".maps"); - -struct { - __uint(type, BPF_MAP_TYPE_ARRAY); - __uint(max_entries, 1); - __type(key, __u32); - __type(value, __u64); -} status_map SEC(".maps"); - -SEC("send_signal_demo") -int bpf_send_signal_test(void *ctx) +#include <bpf/bpf_helpers.h> + +__u32 sig = 0, pid = 0, status = 0, signal_thread = 0; + +static __always_inline int bpf_send_signal_test(void *ctx) { - __u64 *info_val, *status_val; - __u32 key = 0, pid, sig; int ret; - status_val = bpf_map_lookup_elem(&status_map, &key); - if (!status_val || *status_val != 0) - return 0; - - info_val = bpf_map_lookup_elem(&info_map, &key); - if (!info_val || *info_val == 0) + if (status != 0 || sig == 0 || pid == 0) return 0; - sig = *info_val >> 32; - pid = *info_val & 0xffffFFFF; - if ((bpf_get_current_pid_tgid() >> 32) == pid) { - ret = bpf_send_signal(sig); + if (signal_thread) + ret = bpf_send_signal_thread(sig); + else + ret = bpf_send_signal(sig); if (ret == 0) - *status_val = 1; + status = 1; } return 0; } + +SEC("tracepoint/syscalls/sys_enter_nanosleep") +int send_signal_tp(void *ctx) +{ + return bpf_send_signal_test(ctx); +} + +SEC("perf_event") +int send_signal_perf(void *ctx) +{ + return bpf_send_signal_test(ctx); +} + char __license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c b/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c index cb49ccb707d1..d2b38fa6a5b0 100644 --- a/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c +++ b/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c @@ -12,8 +12,8 @@ #include <linux/pkt_cls.h> #include <linux/tcp.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> int _version SEC("version") = 1; char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c b/tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c index 68cf9829f5a7..552f2090665c 100644 --- a/tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c +++ b/tools/testing/selftests/bpf/progs/test_skb_cgroup_id_kern.c @@ -6,7 +6,7 @@ #include <string.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define NUM_CGROUP_LEVELS 4 diff --git a/tools/testing/selftests/bpf/progs/test_skb_ctx.c b/tools/testing/selftests/bpf/progs/test_skb_ctx.c index e18da87fe84f..202de3938494 100644 --- a/tools/testing/selftests/bpf/progs/test_skb_ctx.c +++ b/tools/testing/selftests/bpf/progs/test_skb_ctx.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; char _license[] SEC("license") = "GPL"; diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c index 4f69aac5635f..de03a90f78ca 100644 --- a/tools/testing/selftests/bpf/progs/test_skeleton.c +++ b/tools/testing/selftests/bpf/progs/test_skeleton.c @@ -3,7 +3,7 @@ #include <stdbool.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct s { int a; diff --git a/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c b/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c index a47b003623ef..9bcaa37f476a 100644 --- a/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c +++ b/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c @@ -5,8 +5,8 @@ #include <netinet/in.h> #include <stdbool.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> enum bpf_addr_array_idx { ADDR_SRV_IDX, diff --git a/tools/testing/selftests/bpf/progs/test_spin_lock.c b/tools/testing/selftests/bpf/progs/test_spin_lock.c index a43b999c8da2..0d31a3b3505f 100644 --- a/tools/testing/selftests/bpf/progs/test_spin_lock.c +++ b/tools/testing/selftests/bpf/progs/test_spin_lock.c @@ -2,7 +2,7 @@ // Copyright (c) 2019 Facebook #include <linux/bpf.h> #include <linux/version.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct hmap_elem { volatile int cnt; diff --git a/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c b/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c index f5638e26865d..0cf0134631b4 100644 --- a/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c +++ b/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c @@ -2,7 +2,7 @@ // Copyright (c) 2018 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #ifndef PERF_MAX_STACK_DEPTH #define PERF_MAX_STACK_DEPTH 127 diff --git a/tools/testing/selftests/bpf/progs/test_stacktrace_map.c b/tools/testing/selftests/bpf/progs/test_stacktrace_map.c index 3b7e1dca8829..00ed48672620 100644 --- a/tools/testing/selftests/bpf/progs/test_stacktrace_map.c +++ b/tools/testing/selftests/bpf/progs/test_stacktrace_map.c @@ -2,7 +2,7 @@ // Copyright (c) 2018 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #ifndef PERF_MAX_STACK_DEPTH #define PERF_MAX_STACK_DEPTH 127 diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c index d22e438198cf..458b0d69133e 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c @@ -7,7 +7,7 @@ #include <linux/stddef.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #ifndef ARRAY_SIZE #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c index cb201cbe11e7..b2e6f9b0894d 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c @@ -7,7 +7,7 @@ #include <linux/stddef.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #ifndef ARRAY_SIZE #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_prog.c b/tools/testing/selftests/bpf/progs/test_sysctl_prog.c index 5cbbff416998..2d0b0b82a78a 100644 --- a/tools/testing/selftests/bpf/progs/test_sysctl_prog.c +++ b/tools/testing/selftests/bpf/progs/test_sysctl_prog.c @@ -7,7 +7,7 @@ #include <linux/stddef.h> #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> /* Max supported length of a string with unsigned long in base 10 (pow2 - 1). */ #define MAX_ULONG_STR_LEN 0xF diff --git a/tools/testing/selftests/bpf/progs/test_tc_edt.c b/tools/testing/selftests/bpf/progs/test_tc_edt.c index 0961415ba477..bf28814bfde5 100644 --- a/tools/testing/selftests/bpf/progs/test_tc_edt.c +++ b/tools/testing/selftests/bpf/progs/test_tc_edt.c @@ -7,8 +7,8 @@ #include <linux/ip.h> #include <linux/pkt_cls.h> #include <linux/tcp.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> /* the maximum delay we are willing to add (drop packets beyond that) */ #define TIME_HORIZON_NS (2000 * 1000 * 1000) diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c index 74370e7e286d..37bce7a7c394 100644 --- a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c +++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c @@ -17,8 +17,8 @@ #include <linux/pkt_cls.h> #include <linux/types.h> -#include "bpf_endian.h" -#include "bpf_helpers.h" +#include <bpf/bpf_endian.h> +#include <bpf/bpf_helpers.h> static const int cfg_port = 8000; diff --git a/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c b/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c index d8803dfa8d32..47cbe2eeae43 100644 --- a/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c @@ -13,8 +13,8 @@ #include <sys/socket.h> #include <linux/tcp.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> struct bpf_map_def SEC("maps") results = { .type = BPF_MAP_TYPE_ARRAY, diff --git a/tools/testing/selftests/bpf/progs/test_tcp_estats.c b/tools/testing/selftests/bpf/progs/test_tcp_estats.c index 87b7d934ce73..adc83a54c352 100644 --- a/tools/testing/selftests/bpf/progs/test_tcp_estats.c +++ b/tools/testing/selftests/bpf/progs/test_tcp_estats.c @@ -36,7 +36,7 @@ #include <linux/ipv6.h> #include <linux/version.h> #include <sys/socket.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define _(P) ({typeof(P) val = 0; bpf_probe_read_kernel(&val, sizeof(val), &P); val;}) #define TCP_ESTATS_MAGIC 0xBAADBEEF diff --git a/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c b/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c index 7fa4595d2b66..1f1966e86e9f 100644 --- a/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c @@ -10,8 +10,8 @@ #include <linux/types.h> #include <linux/socket.h> #include <linux/tcp.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "test_tcpbpf.h" struct { diff --git a/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c b/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c index 08346e7765d5..ac63410bb541 100644 --- a/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c @@ -10,8 +10,8 @@ #include <linux/types.h> #include <linux/socket.h> #include <linux/tcp.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "test_tcpnotify.h" struct { diff --git a/tools/testing/selftests/bpf/progs/test_tracepoint.c b/tools/testing/selftests/bpf/progs/test_tracepoint.c index 04bf084517e0..4b825ee122cf 100644 --- a/tools/testing/selftests/bpf/progs/test_tracepoint.c +++ b/tools/testing/selftests/bpf/progs/test_tracepoint.c @@ -2,7 +2,7 @@ // Copyright (c) 2017 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> /* taken from /sys/kernel/debug/tracing/events/sched/sched_switch/format */ struct sched_switch_args { diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c index 504df69c83df..f48dbfe24ddc 100644 --- a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c +++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c @@ -19,8 +19,8 @@ #include <linux/socket.h> #include <linux/pkt_cls.h> #include <linux/erspan.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #define ERROR(ret) do {\ char fmt[] = "ERROR line:%d ret:%d\n";\ diff --git a/tools/testing/selftests/bpf/progs/test_verif_scale1.c b/tools/testing/selftests/bpf/progs/test_verif_scale1.c index f3236ce35f31..d38153dab3dd 100644 --- a/tools/testing/selftests/bpf/progs/test_verif_scale1.c +++ b/tools/testing/selftests/bpf/progs/test_verif_scale1.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define ATTR __attribute__((noinline)) #include "test_jhash.h" diff --git a/tools/testing/selftests/bpf/progs/test_verif_scale2.c b/tools/testing/selftests/bpf/progs/test_verif_scale2.c index 9897150ed516..f024154c7be7 100644 --- a/tools/testing/selftests/bpf/progs/test_verif_scale2.c +++ b/tools/testing/selftests/bpf/progs/test_verif_scale2.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define ATTR __always_inline #include "test_jhash.h" diff --git a/tools/testing/selftests/bpf/progs/test_verif_scale3.c b/tools/testing/selftests/bpf/progs/test_verif_scale3.c index 1848da04ea41..9beb5bf80373 100644 --- a/tools/testing/selftests/bpf/progs/test_verif_scale3.c +++ b/tools/testing/selftests/bpf/progs/test_verif_scale3.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 Facebook #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define ATTR __attribute__((noinline)) #include "test_jhash.h" diff --git a/tools/testing/selftests/bpf/progs/test_xdp.c b/tools/testing/selftests/bpf/progs/test_xdp.c index 0941c655b07b..31f9bce37491 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp.c +++ b/tools/testing/selftests/bpf/progs/test_xdp.c @@ -16,8 +16,8 @@ #include <linux/tcp.h> #include <linux/pkt_cls.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "test_iptunnel_common.h" int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_xdp_bpf2bpf.c b/tools/testing/selftests/bpf/progs/test_xdp_bpf2bpf.c new file mode 100644 index 000000000000..cb8a04ab7a78 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_xdp_bpf2bpf.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> +#include "bpf_trace_helpers.h" + +struct net_device { + /* Structure does not need to contain all entries, + * as "preserve_access_index" will use BTF to fix this... + */ + int ifindex; +} __attribute__((preserve_access_index)); + +struct xdp_rxq_info { + /* Structure does not need to contain all entries, + * as "preserve_access_index" will use BTF to fix this... + */ + struct net_device *dev; + __u32 queue_index; +} __attribute__((preserve_access_index)); + +struct xdp_buff { + void *data; + void *data_end; + void *data_meta; + void *data_hard_start; + unsigned long handle; + struct xdp_rxq_info *rxq; +} __attribute__((preserve_access_index)); + +__u64 test_result_fentry = 0; +SEC("fentry/_xdp_tx_iptunnel") +int BPF_PROG(trace_on_entry, struct xdp_buff *xdp) +{ + test_result_fentry = xdp->rxq->dev->ifindex; + return 0; +} + +__u64 test_result_fexit = 0; +SEC("fexit/_xdp_tx_iptunnel") +int BPF_PROG(trace_on_exit, struct xdp_buff *xdp, int ret) +{ + test_result_fexit = ret; + return 0; +} diff --git a/tools/testing/selftests/bpf/progs/test_xdp_loop.c b/tools/testing/selftests/bpf/progs/test_xdp_loop.c index 97175f73c3fe..fcabcda30ba3 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_loop.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_loop.c @@ -12,8 +12,8 @@ #include <linux/tcp.h> #include <linux/pkt_cls.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "test_iptunnel_common.h" int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_xdp_meta.c b/tools/testing/selftests/bpf/progs/test_xdp_meta.c index 8d0182650653..a7c4a7d49fe6 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_meta.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_meta.c @@ -2,7 +2,7 @@ #include <linux/if_ether.h> #include <linux/pkt_cls.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> #define __round_mask(x, y) ((__typeof__(x))((y) - 1)) #define round_up(x, y) ((((x) - 1) | __round_mask(x, y)) + 1) diff --git a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c index e88d7b9d65ab..8beecec166d9 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c @@ -13,8 +13,8 @@ #include <linux/icmpv6.h> #include <linux/tcp.h> #include <linux/udp.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> static __u32 rol32(__u32 word, unsigned int shift) { @@ -86,7 +86,7 @@ u32 jhash(const void *key, u32 length, u32 initval) return c; } -static __attribute__ ((noinline)) +__attribute__ ((noinline)) u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval) { a += initval; @@ -96,7 +96,7 @@ u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval) return c; } -static __attribute__ ((noinline)) +__attribute__ ((noinline)) u32 jhash_2words(u32 a, u32 b, u32 initval) { return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2)); diff --git a/tools/testing/selftests/bpf/progs/test_xdp_redirect.c b/tools/testing/selftests/bpf/progs/test_xdp_redirect.c index ef9e704be140..a5337cd9400b 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_redirect.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_redirect.c @@ -10,7 +10,7 @@ * General Public License for more details. */ #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> int _version SEC("version") = 1; diff --git a/tools/testing/selftests/bpf/progs/test_xdp_vlan.c b/tools/testing/selftests/bpf/progs/test_xdp_vlan.c index 365a7d2d9f5c..134768f6b788 100644 --- a/tools/testing/selftests/bpf/progs/test_xdp_vlan.c +++ b/tools/testing/selftests/bpf/progs/test_xdp_vlan.c @@ -22,8 +22,8 @@ #include <linux/in.h> #include <linux/pkt_cls.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> /* linux/if_vlan.h have not exposed this as UAPI, thus mirror some here * diff --git a/tools/testing/selftests/bpf/progs/xdp_dummy.c b/tools/testing/selftests/bpf/progs/xdp_dummy.c index 43b0ef1001ed..ea25e8881992 100644 --- a/tools/testing/selftests/bpf/progs/xdp_dummy.c +++ b/tools/testing/selftests/bpf/progs/xdp_dummy.c @@ -2,7 +2,7 @@ #define KBUILD_MODNAME "xdp_dummy" #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> SEC("xdp_dummy") int xdp_dummy_prog(struct xdp_md *ctx) diff --git a/tools/testing/selftests/bpf/progs/xdp_redirect_map.c b/tools/testing/selftests/bpf/progs/xdp_redirect_map.c index 1c5f298d7196..d037262c8937 100644 --- a/tools/testing/selftests/bpf/progs/xdp_redirect_map.c +++ b/tools/testing/selftests/bpf/progs/xdp_redirect_map.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> struct { __uint(type, BPF_MAP_TYPE_DEVMAP); diff --git a/tools/testing/selftests/bpf/progs/xdp_tx.c b/tools/testing/selftests/bpf/progs/xdp_tx.c index 57912e7c94b0..94e6c2b281cb 100644 --- a/tools/testing/selftests/bpf/progs/xdp_tx.c +++ b/tools/testing/selftests/bpf/progs/xdp_tx.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/bpf.h> -#include "bpf_helpers.h" +#include <bpf/bpf_helpers.h> SEC("tx") int xdp_tx(struct xdp_md *xdp) diff --git a/tools/testing/selftests/bpf/progs/xdping_kern.c b/tools/testing/selftests/bpf/progs/xdping_kern.c index 112a2857f4e2..6b9ca40bd1f4 100644 --- a/tools/testing/selftests/bpf/progs/xdping_kern.c +++ b/tools/testing/selftests/bpf/progs/xdping_kern.c @@ -12,8 +12,8 @@ #include <linux/if_vlan.h> #include <linux/ip.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> #include "xdping.h" diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c index 3d617e806054..93040ca83e60 100644 --- a/tools/testing/selftests/bpf/test_btf.c +++ b/tools/testing/selftests/bpf/test_btf.c @@ -4148,10 +4148,6 @@ static int do_test_file(unsigned int test_num) if (CHECK(IS_ERR(obj), "obj: %ld", PTR_ERR(obj))) return PTR_ERR(obj); - err = bpf_object__btf_fd(obj); - if (CHECK(err == -1, "bpf_object__btf_fd: -1")) - goto done; - prog = bpf_program__next(NULL, obj); if (CHECK(!prog, "Cannot find bpf_prog")) { err = -1; diff --git a/tools/testing/selftests/bpf/test_cpp.cpp b/tools/testing/selftests/bpf/test_cpp.cpp index 6fe23a10d48a..a8d2e9a87fbf 100644 --- a/tools/testing/selftests/bpf/test_cpp.cpp +++ b/tools/testing/selftests/bpf/test_cpp.cpp @@ -1,8 +1,8 @@ /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ #include <iostream> -#include "libbpf.h" -#include "bpf.h" -#include "btf.h" +#include <bpf/libbpf.h> +#include <bpf/bpf.h> +#include <bpf/btf.h> #include "test_core_extern.skel.h" /* do nothing, just make sure we can link successfully */ diff --git a/tools/testing/selftests/bpf/test_hashmap.c b/tools/testing/selftests/bpf/test_hashmap.c index b64094c981e3..c490e012c23f 100644 --- a/tools/testing/selftests/bpf/test_hashmap.c +++ b/tools/testing/selftests/bpf/test_hashmap.c @@ -8,7 +8,7 @@ #include <stdio.h> #include <errno.h> #include <linux/err.h> -#include "hashmap.h" +#include "bpf/hashmap.h" #define CHECK(condition, format...) ({ \ int __ret = !!(condition); \ diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 7fa7d08a8104..bab1e6f1d8f1 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -8,7 +8,7 @@ #include <string.h> /* defined in test_progs.h */ -struct test_env env; +struct test_env env = {}; struct prog_test_def { const char *test_name; @@ -29,10 +29,19 @@ struct prog_test_def { static bool should_run(struct test_selector *sel, int num, const char *name) { - if (sel->name && sel->name[0] && !strstr(name, sel->name)) - return false; + int i; + + for (i = 0; i < sel->blacklist.cnt; i++) { + if (strstr(name, sel->blacklist.strs[i])) + return false; + } - if (!sel->num_set) + for (i = 0; i < sel->whitelist.cnt; i++) { + if (strstr(name, sel->whitelist.strs[i])) + return true; + } + + if (!sel->whitelist.cnt && !sel->num_set) return true; return num < sel->num_set_len && sel->num_set[num]; @@ -334,6 +343,7 @@ const char argp_program_doc[] = "BPF selftests test runner"; enum ARG_KEYS { ARG_TEST_NUM = 'n', ARG_TEST_NAME = 't', + ARG_TEST_NAME_BLACKLIST = 'b', ARG_VERIFIER_STATS = 's', ARG_VERBOSE = 'v', }; @@ -341,8 +351,10 @@ enum ARG_KEYS { static const struct argp_option opts[] = { { "num", ARG_TEST_NUM, "NUM", 0, "Run test number NUM only " }, - { "name", ARG_TEST_NAME, "NAME", 0, - "Run tests with names containing NAME" }, + { "name", ARG_TEST_NAME, "NAMES", 0, + "Run tests with names containing any string from NAMES list" }, + { "name-blacklist", ARG_TEST_NAME_BLACKLIST, "NAMES", 0, + "Don't run tests with names containing any string from NAMES list" }, { "verifier-stats", ARG_VERIFIER_STATS, NULL, 0, "Output verifier statistics", }, { "verbose", ARG_VERBOSE, "LEVEL", OPTION_ARG_OPTIONAL, @@ -359,6 +371,41 @@ static int libbpf_print_fn(enum libbpf_print_level level, return 0; } +static int parse_str_list(const char *s, struct str_set *set) +{ + char *input, *state = NULL, *next, **tmp, **strs = NULL; + int cnt = 0; + + input = strdup(s); + if (!input) + return -ENOMEM; + + set->cnt = 0; + set->strs = NULL; + + while ((next = strtok_r(state ? NULL : input, ",", &state))) { + tmp = realloc(strs, sizeof(*strs) * (cnt + 1)); + if (!tmp) + goto err; + strs = tmp; + + strs[cnt] = strdup(next); + if (!strs[cnt]) + goto err; + + cnt++; + } + + set->cnt = cnt; + set->strs = (const char **)strs; + free(input); + return 0; +err: + free(strs); + free(input); + return -ENOMEM; +} + int parse_num_list(const char *s, struct test_selector *sel) { int i, set_len = 0, num, start = 0, end = -1; @@ -449,12 +496,24 @@ static error_t parse_arg(int key, char *arg, struct argp_state *state) if (subtest_str) { *subtest_str = '\0'; - env->subtest_selector.name = strdup(subtest_str + 1); - if (!env->subtest_selector.name) + if (parse_str_list(subtest_str + 1, + &env->subtest_selector.whitelist)) + return -ENOMEM; + } + if (parse_str_list(arg, &env->test_selector.whitelist)) + return -ENOMEM; + break; + } + case ARG_TEST_NAME_BLACKLIST: { + char *subtest_str = strchr(arg, '/'); + + if (subtest_str) { + *subtest_str = '\0'; + if (parse_str_list(subtest_str + 1, + &env->subtest_selector.blacklist)) return -ENOMEM; } - env->test_selector.name = strdup(arg); - if (!env->test_selector.name) + if (parse_str_list(arg, &env->test_selector.blacklist)) return -ENOMEM; break; } @@ -617,7 +676,11 @@ int main(int argc, char **argv) printf("Summary: %d/%d PASSED, %d SKIPPED, %d FAILED\n", env.succ_cnt, env.sub_succ_cnt, env.skip_cnt, env.fail_cnt); + free(env.test_selector.blacklist.strs); + free(env.test_selector.whitelist.strs); free(env.test_selector.num_set); + free(env.subtest_selector.blacklist.strs); + free(env.subtest_selector.whitelist.strs); free(env.subtest_selector.num_set); return env.fail_cnt ? EXIT_FAILURE : EXIT_SUCCESS; diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h index de1fdaa4e7b4..bcfa9ef23fda 100644 --- a/tools/testing/selftests/bpf/test_progs.h +++ b/tools/testing/selftests/bpf/test_progs.h @@ -35,7 +35,7 @@ typedef __u16 __sum16; #include "test_iptunnel_common.h" #include "bpf_util.h" -#include "bpf_endian.h" +#include <bpf/bpf_endian.h> #include "trace_helpers.h" #include "flow_dissector_load.h" @@ -46,8 +46,14 @@ enum verbosity { VERBOSE_SUPER, }; +struct str_set { + const char **strs; + int cnt; +}; + struct test_selector { - const char *name; + struct str_set whitelist; + struct str_set blacklist; bool *num_set; int num_set_len; }; diff --git a/tools/testing/selftests/bpf/test_sock.c b/tools/testing/selftests/bpf/test_sock.c index 0e6652733462..52bf14955797 100644 --- a/tools/testing/selftests/bpf/test_sock.c +++ b/tools/testing/selftests/bpf/test_sock.c @@ -13,7 +13,7 @@ #include <bpf/bpf.h> #include "cgroup_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_endian.h> #include "bpf_rlimit.h" #include "bpf_util.h" diff --git a/tools/testing/selftests/bpf/test_sockmap_kern.h b/tools/testing/selftests/bpf/test_sockmap_kern.h index d008b41b7d8d..9b4d3a68a91a 100644 --- a/tools/testing/selftests/bpf/test_sockmap_kern.h +++ b/tools/testing/selftests/bpf/test_sockmap_kern.h @@ -12,8 +12,8 @@ #include <linux/tcp.h> #include <linux/pkt_cls.h> #include <sys/socket.h> -#include "bpf_helpers.h" -#include "bpf_endian.h" +#include <bpf/bpf_helpers.h> +#include <bpf/bpf_endian.h> /* Sockmap sample program connects a client and a backend together * using cgroups. diff --git a/tools/testing/selftests/bpf/test_sysctl.c b/tools/testing/selftests/bpf/test_sysctl.c index 40bd93a6e7ae..d196e2a4a6e0 100644 --- a/tools/testing/selftests/bpf/test_sysctl.c +++ b/tools/testing/selftests/bpf/test_sysctl.c @@ -13,7 +13,7 @@ #include <bpf/bpf.h> #include <bpf/libbpf.h> -#include "bpf_endian.h" +#include <bpf/bpf_endian.h> #include "bpf_rlimit.h" #include "bpf_util.h" #include "cgroup_helpers.h" diff --git a/tools/testing/selftests/bpf/trace_helpers.h b/tools/testing/selftests/bpf/trace_helpers.h index aa4dcfe18050..0383c9b8adc1 100644 --- a/tools/testing/selftests/bpf/trace_helpers.h +++ b/tools/testing/selftests/bpf/trace_helpers.h @@ -2,7 +2,7 @@ #ifndef __TRACE_HELPER_H #define __TRACE_HELPER_H -#include <libbpf.h> +#include <bpf/libbpf.h> struct ksym { long addr; |