diff options
Diffstat (limited to 'samples')
65 files changed, 1334 insertions, 444 deletions
diff --git a/samples/Kconfig b/samples/Kconfig index c8dacb4dda80..9d236c346de5 100644 --- a/samples/Kconfig +++ b/samples/Kconfig @@ -19,6 +19,21 @@ config SAMPLE_TRACE_PRINTK This builds a module that calls trace_printk() and can be used to test various trace_printk() calls from a module. +config SAMPLE_FTRACE_DIRECT + tristate "Build register_ftrace_direct() example" + depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m + depends on X86_64 # has x86_64 inlined asm + help + This builds an ftrace direct function example + that hooks to wake_up_process and prints the parameters. + +config SAMPLE_TRACE_ARRAY + tristate "Build sample module for kernel access to Ftrace instancess" + depends on EVENT_TRACING && m + help + This builds a module that demonstrates the use of various APIs to + access Ftrace instances from within the kernel. + config SAMPLE_KOBJECT tristate "Build kobject examples" help @@ -169,4 +184,11 @@ config SAMPLE_VFS as mount API and statx(). Note that this is restricted to the x86 arch whilst it accesses system calls that aren't yet in all arches. +config SAMPLE_INTEL_MEI + bool "Build example program working with intel mei driver" + depends on INTEL_MEI + help + Build a sample program to work with mei device. + + endif # SAMPLES diff --git a/samples/Makefile b/samples/Makefile index 7d6e4ca28d69..5ce50ef0f2b2 100644 --- a/samples/Makefile +++ b/samples/Makefile @@ -17,6 +17,9 @@ obj-$(CONFIG_SAMPLE_RPMSG_CLIENT) += rpmsg/ subdir-$(CONFIG_SAMPLE_SECCOMP) += seccomp obj-$(CONFIG_SAMPLE_TRACE_EVENTS) += trace_events/ obj-$(CONFIG_SAMPLE_TRACE_PRINTK) += trace_printk/ +obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace/ +obj-$(CONFIG_SAMPLE_TRACE_ARRAY) += ftrace/ obj-$(CONFIG_VIDEO_PCI_SKELETON) += v4l/ obj-y += vfio-mdev/ subdir-$(CONFIG_SAMPLE_VFS) += vfs +obj-$(CONFIG_SAMPLE_INTEL_MEI) += mei/ diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 42b571cde177..1fc42ad8ff49 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -4,55 +4,53 @@ BPF_SAMPLES_PATH ?= $(abspath $(srctree)/$(src)) TOOLS_PATH := $(BPF_SAMPLES_PATH)/../../tools # List of programs to build -hostprogs-y := test_lru_dist -hostprogs-y += sock_example -hostprogs-y += fds_example -hostprogs-y += sockex1 -hostprogs-y += sockex2 -hostprogs-y += sockex3 -hostprogs-y += tracex1 -hostprogs-y += tracex2 -hostprogs-y += tracex3 -hostprogs-y += tracex4 -hostprogs-y += tracex5 -hostprogs-y += tracex6 -hostprogs-y += tracex7 -hostprogs-y += test_probe_write_user -hostprogs-y += trace_output -hostprogs-y += lathist -hostprogs-y += offwaketime -hostprogs-y += spintest -hostprogs-y += map_perf_test -hostprogs-y += test_overhead -hostprogs-y += test_cgrp2_array_pin -hostprogs-y += test_cgrp2_attach -hostprogs-y += test_cgrp2_sock -hostprogs-y += test_cgrp2_sock2 -hostprogs-y += xdp1 -hostprogs-y += xdp2 -hostprogs-y += xdp_router_ipv4 -hostprogs-y += test_current_task_under_cgroup -hostprogs-y += trace_event -hostprogs-y += sampleip -hostprogs-y += tc_l2_redirect -hostprogs-y += lwt_len_hist -hostprogs-y += xdp_tx_iptunnel -hostprogs-y += test_map_in_map -hostprogs-y += per_socket_stats_example -hostprogs-y += xdp_redirect -hostprogs-y += xdp_redirect_map -hostprogs-y += xdp_redirect_cpu -hostprogs-y += xdp_monitor -hostprogs-y += xdp_rxq_info -hostprogs-y += syscall_tp -hostprogs-y += cpustat -hostprogs-y += xdp_adjust_tail -hostprogs-y += xdpsock -hostprogs-y += xdp_fwd -hostprogs-y += task_fd_query -hostprogs-y += xdp_sample_pkts -hostprogs-y += ibumad -hostprogs-y += hbm +tprogs-y := test_lru_dist +tprogs-y += sock_example +tprogs-y += fds_example +tprogs-y += sockex1 +tprogs-y += sockex2 +tprogs-y += sockex3 +tprogs-y += tracex1 +tprogs-y += tracex2 +tprogs-y += tracex3 +tprogs-y += tracex4 +tprogs-y += tracex5 +tprogs-y += tracex6 +tprogs-y += tracex7 +tprogs-y += test_probe_write_user +tprogs-y += trace_output +tprogs-y += lathist +tprogs-y += offwaketime +tprogs-y += spintest +tprogs-y += map_perf_test +tprogs-y += test_overhead +tprogs-y += test_cgrp2_array_pin +tprogs-y += test_cgrp2_attach +tprogs-y += test_cgrp2_sock +tprogs-y += test_cgrp2_sock2 +tprogs-y += xdp1 +tprogs-y += xdp2 +tprogs-y += xdp_router_ipv4 +tprogs-y += test_current_task_under_cgroup +tprogs-y += trace_event +tprogs-y += sampleip +tprogs-y += tc_l2_redirect +tprogs-y += lwt_len_hist +tprogs-y += xdp_tx_iptunnel +tprogs-y += test_map_in_map +tprogs-y += xdp_redirect_map +tprogs-y += xdp_redirect_cpu +tprogs-y += xdp_monitor +tprogs-y += xdp_rxq_info +tprogs-y += syscall_tp +tprogs-y += cpustat +tprogs-y += xdp_adjust_tail +tprogs-y += xdpsock +tprogs-y += xdp_fwd +tprogs-y += task_fd_query +tprogs-y += xdp_sample_pkts +tprogs-y += ibumad +tprogs-y += hbm # Libbpf dependencies LIBBPF = $(TOOLS_PATH)/lib/bpf/libbpf.a @@ -111,7 +109,7 @@ ibumad-objs := bpf_load.o ibumad_user.o $(TRACE_HELPERS) hbm-objs := bpf_load.o hbm.o $(CGROUP_HELPERS) # Tell kbuild to always build the programs -always := $(hostprogs-y) +always := $(tprogs-y) always += sockex1_kern.o always += sockex2_kern.o always += sockex3_kern.o @@ -145,7 +143,6 @@ always += sampleip_kern.o always += lwt_len_hist_kern.o always += xdp_tx_iptunnel_kern.o always += test_map_in_map_kern.o -always += cookie_uid_helper_example.o always += tcp_synrto_kern.o always += tcp_rwnd_kern.o always += tcp_bufs_kern.o @@ -170,25 +167,44 @@ always += xdp_sample_pkts_kern.o always += ibumad_kern.o always += hbm_out_kern.o always += hbm_edt_kern.o +always += xdpsock_kern.o -KBUILD_HOSTCFLAGS += -I$(objtree)/usr/include -KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/bpf/ -KBUILD_HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ -KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include -KBUILD_HOSTCFLAGS += -I$(srctree)/tools/perf -KBUILD_HOSTCFLAGS += -DHAVE_ATTR_TEST=0 +ifeq ($(ARCH), arm) +# Strip all except -D__LINUX_ARM_ARCH__ option needed to handle linux +# headers when arm instruction set identification is requested. +ARM_ARCH_SELECTOR := $(filter -D__LINUX_ARM_ARCH__%, $(KBUILD_CFLAGS)) +BPF_EXTRA_CFLAGS := $(ARM_ARCH_SELECTOR) +TPROGS_CFLAGS += $(ARM_ARCH_SELECTOR) +endif + +TPROGS_CFLAGS += -Wall -O2 +TPROGS_CFLAGS += -Wmissing-prototypes +TPROGS_CFLAGS += -Wstrict-prototypes + +TPROGS_CFLAGS += -I$(objtree)/usr/include +TPROGS_CFLAGS += -I$(srctree)/tools/lib/bpf/ +TPROGS_CFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ +TPROGS_CFLAGS += -I$(srctree)/tools/lib/ +TPROGS_CFLAGS += -I$(srctree)/tools/include +TPROGS_CFLAGS += -I$(srctree)/tools/perf +TPROGS_CFLAGS += -DHAVE_ATTR_TEST=0 -HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable +ifdef SYSROOT +TPROGS_CFLAGS += --sysroot=$(SYSROOT) +TPROGS_LDFLAGS := -L$(SYSROOT)/usr/lib +endif + +TPROGCFLAGS_bpf_load.o += -Wno-unused-variable -KBUILD_HOSTLDLIBS += $(LIBBPF) -lelf -HOSTLDLIBS_tracex4 += -lrt -HOSTLDLIBS_trace_output += -lrt -HOSTLDLIBS_map_perf_test += -lrt -HOSTLDLIBS_test_overhead += -lrt -HOSTLDLIBS_xdpsock += -pthread +TPROGS_LDLIBS += $(LIBBPF) -lelf +TPROGLDLIBS_tracex4 += -lrt +TPROGLDLIBS_trace_output += -lrt +TPROGLDLIBS_map_perf_test += -lrt +TPROGLDLIBS_test_overhead += -lrt +TPROGLDLIBS_xdpsock += -pthread # Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline: -# make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang +# make M=samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang LLC ?= llc CLANG ?= clang LLVM_OBJCOPY ?= llvm-objcopy @@ -196,15 +212,14 @@ BTF_PAHOLE ?= pahole # Detect that we're cross compiling and use the cross compiler ifdef CROSS_COMPILE -HOSTCC = $(CROSS_COMPILE)gcc -CLANG_ARCH_ARGS = -target $(ARCH) +CLANG_ARCH_ARGS = --target=$(notdir $(CROSS_COMPILE:%-=%)) endif # Don't evaluate probes and warnings if we need to run make recursively ifneq ($(src),) -HDR_PROBE := $(shell echo "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \ - $(HOSTCC) $(KBUILD_HOSTCFLAGS) -x c - -o /dev/null 2>/dev/null && \ - echo okay) +HDR_PROBE := $(shell printf "\#include <linux/types.h>\n struct list_head { int a; }; int main() { return 0; }" | \ + $(CC) $(TPROGS_CFLAGS) $(TPROGS_LDFLAGS) -x c - \ + -o /dev/null 2>/dev/null && echo okay) ifeq ($(HDR_PROBE),) $(warning WARNING: Detected possible issues with include path.) @@ -220,10 +235,10 @@ BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \ /bin/rm -f ./llvm_btf_verify.o) ifneq ($(BTF_LLVM_PROBE),) - EXTRA_CFLAGS += -g + BPF_EXTRA_CFLAGS += -g else ifneq ($(and $(BTF_LLC_PROBE),$(BTF_PAHOLE_PROBE),$(BTF_OBJCOPY_PROBE)),) - EXTRA_CFLAGS += -g + BPF_EXTRA_CFLAGS += -g LLC_FLAGS += -mattr=dwarfris DWARF2BTF = y endif @@ -232,7 +247,7 @@ endif # Trick to allow make to be run from this directory all: - $(MAKE) -C ../../ $(CURDIR)/ BPF_SAMPLES_PATH=$(CURDIR) + $(MAKE) -C ../../ M=$(CURDIR) BPF_SAMPLES_PATH=$(CURDIR) clean: $(MAKE) -C ../../ M=$(CURDIR) clean @@ -240,7 +255,8 @@ clean: $(LIBBPF): FORCE # Fix up variables inherited from Kbuild that tools/ build system won't like - $(MAKE) -C $(dir $@) RM='rm -rf' LDFLAGS= srctree=$(BPF_SAMPLES_PATH)/../../ O= + $(MAKE) -C $(dir $@) RM='rm -rf' EXTRA_CFLAGS="$(TPROGS_CFLAGS)" \ + LDFLAGS=$(TPROGS_LDFLAGS) srctree=$(BPF_SAMPLES_PATH)/../../ O= $(obj)/syscall_nrs.h: $(obj)/syscall_nrs.s FORCE $(call filechk,offsets,__SYSCALL_NRS_H__) @@ -277,13 +293,16 @@ $(obj)/hbm_out_kern.o: $(src)/hbm.h $(src)/hbm_kern.h $(obj)/hbm.o: $(src)/hbm.h $(obj)/hbm_edt_kern.o: $(src)/hbm.h $(src)/hbm_kern.h +-include $(BPF_SAMPLES_PATH)/Makefile.target + # asm/sysreg.h - inline assembly used by it is incompatible with llvm. # But, there is no easy way to fix it, so just exclude it since it is # useless for BPF samples. $(obj)/%.o: $(src)/%.c @echo " CLANG-bpf " $@ - $(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \ - -I$(srctree)/tools/testing/selftests/bpf/ \ + $(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(BPF_EXTRA_CFLAGS) \ + -I$(obj) -I$(srctree)/tools/testing/selftests/bpf/ \ + -I$(srctree)/tools/lib/bpf/ \ -D__KERNEL__ -D__BPF_TRACING__ -Wno-unused-value -Wno-pointer-sign \ -D__TARGET_ARCH_$(SRCARCH) -Wno-compare-distinct-pointer-types \ -Wno-gnu-variable-sized-type-not-at-end \ diff --git a/samples/bpf/Makefile.target b/samples/bpf/Makefile.target new file mode 100644 index 000000000000..7621f55e2947 --- /dev/null +++ b/samples/bpf/Makefile.target @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: GPL-2.0 +# ========================================================================== +# Building binaries on the host system +# Binaries are not used during the compilation of the kernel, and intended +# to be build for target board, target board can be host of course. Added to +# build binaries to run not on host system. +# +# Sample syntax +# tprogs-y := xsk_example +# Will compile xsk_example.c and create an executable named xsk_example +# +# tprogs-y := xdpsock +# xdpsock-objs := xdpsock_1.o xdpsock_2.o +# Will compile xdpsock_1.c and xdpsock_2.c, and then link the executable +# xdpsock, based on xdpsock_1.o and xdpsock_2.o +# +# Derived from scripts/Makefile.host +# +__tprogs := $(sort $(tprogs-y)) + +# C code +# Executables compiled from a single .c file +tprog-csingle := $(foreach m,$(__tprogs), \ + $(if $($(m)-objs),,$(m))) + +# C executables linked based on several .o files +tprog-cmulti := $(foreach m,$(__tprogs),\ + $(if $($(m)-objs),$(m))) + +# Object (.o) files compiled from .c files +tprog-cobjs := $(sort $(foreach m,$(__tprogs),$($(m)-objs))) + +tprog-csingle := $(addprefix $(obj)/,$(tprog-csingle)) +tprog-cmulti := $(addprefix $(obj)/,$(tprog-cmulti)) +tprog-cobjs := $(addprefix $(obj)/,$(tprog-cobjs)) + +##### +# Handle options to gcc. Support building with separate output directory + +_tprogc_flags = $(TPROGS_CFLAGS) \ + $(TPROGCFLAGS_$(basetarget).o) + +# $(objtree)/$(obj) for including generated headers from checkin source files +ifeq ($(KBUILD_EXTMOD),) +ifdef building_out_of_srctree +_tprogc_flags += -I $(objtree)/$(obj) +endif +endif + +tprogc_flags = -Wp,-MD,$(depfile) $(_tprogc_flags) + +# Create executable from a single .c file +# tprog-csingle -> Executable +quiet_cmd_tprog-csingle = CC $@ + cmd_tprog-csingle = $(CC) $(tprogc_flags) $(TPROGS_LDFLAGS) -o $@ $< \ + $(TPROGS_LDLIBS) $(TPROGLDLIBS_$(@F)) +$(tprog-csingle): $(obj)/%: $(src)/%.c FORCE + $(call if_changed_dep,tprog-csingle) + +# Link an executable based on list of .o files, all plain c +# tprog-cmulti -> executable +quiet_cmd_tprog-cmulti = LD $@ + cmd_tprog-cmulti = $(CC) $(tprogc_flags) $(TPROGS_LDFLAGS) -o $@ \ + $(addprefix $(obj)/,$($(@F)-objs)) \ + $(TPROGS_LDLIBS) $(TPROGLDLIBS_$(@F)) +$(tprog-cmulti): $(tprog-cobjs) FORCE + $(call if_changed,tprog-cmulti) +$(call multi_depend, $(tprog-cmulti), , -objs) + +# Create .o file from a single .c file +# tprog-cobjs -> .o +quiet_cmd_tprog-cobjs = CC $@ + cmd_tprog-cobjs = $(CC) $(tprogc_flags) -c -o $@ $< +$(tprog-cobjs): $(obj)/%.o: $(src)/%.c FORCE + $(call if_changed_dep,tprog-cobjs) diff --git a/samples/bpf/README.rst b/samples/bpf/README.rst index 5f27e4faca50..dd34b2d26f1c 100644 --- a/samples/bpf/README.rst +++ b/samples/bpf/README.rst @@ -14,6 +14,20 @@ Compiling requires having installed: Note that LLVM's tool 'llc' must support target 'bpf', list version and supported targets with command: ``llc --version`` +Clean and configuration +----------------------- + +It can be needed to clean tools, samples or kernel before trying new arch or +after some changes (on demand):: + + make -C tools clean + make -C samples/bpf clean + make clean + +Configure kernel, defconfig for instance:: + + make defconfig + Kernel headers -------------- @@ -32,12 +46,10 @@ Compiling For building the BPF samples, issue the below command from the kernel top level directory:: - make samples/bpf/ - -Do notice the "/" slash after the directory name. + make M=samples/bpf It is also possible to call make from this directory. This will just -hide the the invocation of make as above with the appended "/". +hide the invocation of make as above. Manually compiling LLVM with 'bpf' support ------------------------------------------ @@ -63,14 +75,31 @@ Quick sniplet for manually compiling LLVM and clang It is also possible to point make to the newly compiled 'llc' or 'clang' command via redefining LLC or CLANG on the make command line:: - make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang + make M=samples/bpf LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang Cross compiling samples ----------------------- In order to cross-compile, say for arm64 targets, export CROSS_COMPILE and ARCH -environment variables before calling make. This will direct make to build -samples for the cross target. +environment variables before calling make. But do this before clean, +cofiguration and header install steps described above. This will direct make to +build samples for the cross target:: + + export ARCH=arm64 + export CROSS_COMPILE="aarch64-linux-gnu-" + +Headers can be also installed on RFS of target board if need to keep them in +sync (not necessarily and it creates a local "usr/include" directory also):: + + make INSTALL_HDR_PATH=~/some_sysroot/usr headers_install + +Pointing LLC and CLANG is not necessarily if it's installed on HOST and have +in its targets appropriate arm64 arch (usually it has several arches). +Build samples:: + + make M=samples/bpf + +Or build samples with SYSROOT if some header or library is absent in toolchain, +say libelf, providing address to file system containing headers and libs, +can be RFS of target board:: -export ARCH=arm64 -export CROSS_COMPILE="aarch64-linux-gnu-" -make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang + make M=samples/bpf SYSROOT=~/some_sysroot diff --git a/samples/bpf/hbm.c b/samples/bpf/hbm.c index e0fbab9bec83..829b68d87687 100644 --- a/samples/bpf/hbm.c +++ b/samples/bpf/hbm.c @@ -147,7 +147,7 @@ static int prog_load(char *prog) } if (ret) { - printf("ERROR: load_bpf_file failed for: %s\n", prog); + printf("ERROR: bpf_prog_load_xattr failed for: %s\n", prog); printf(" Output from verifier:\n%s\n------\n", bpf_log_buf); ret = -1; } else { diff --git a/samples/bpf/hbm_kern.h b/samples/bpf/hbm_kern.h index aa207a2eebbd..4edaf47876ca 100644 --- a/samples/bpf/hbm_kern.h +++ b/samples/bpf/hbm_kern.h @@ -59,21 +59,18 @@ #define BYTES_PER_NS(delta, rate) ((((u64)(delta)) * (rate)) >> 20) #define BYTES_TO_NS(bytes, rate) div64_u64(((u64)(bytes)) << 20, (u64)(rate)) -struct bpf_map_def SEC("maps") queue_state = { - .type = BPF_MAP_TYPE_CGROUP_STORAGE, - .key_size = sizeof(struct bpf_cgroup_storage_key), - .value_size = sizeof(struct hbm_vqueue), -}; -BPF_ANNOTATE_KV_PAIR(queue_state, struct bpf_cgroup_storage_key, - struct hbm_vqueue); - -struct bpf_map_def SEC("maps") queue_stats = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct hbm_queue_stats), - .max_entries = 1, -}; -BPF_ANNOTATE_KV_PAIR(queue_stats, int, struct hbm_queue_stats); +struct { + __uint(type, BPF_MAP_TYPE_CGROUP_STORAGE); + __type(key, struct bpf_cgroup_storage_key); + __type(value, struct hbm_vqueue); +} queue_state SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, 1); + __type(key, u32); + __type(value, struct hvm_queue_stats); +} queue_stats SEC(".maps"); struct hbm_pkt_info { int cwnd; diff --git a/samples/bpf/map_perf_test_kern.c b/samples/bpf/map_perf_test_kern.c index 2b2ffb97018b..281bcdaee58e 100644 --- a/samples/bpf/map_perf_test_kern.c +++ b/samples/bpf/map_perf_test_kern.c @@ -9,25 +9,27 @@ #include <linux/version.h> #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" +#include "bpf_tracing.h" #define MAX_ENTRIES 1000 #define MAX_NR_CPUS 1024 -struct bpf_map_def SEC("maps") hash_map = { +struct bpf_map_def_legacy SEC("maps") hash_map = { .type = BPF_MAP_TYPE_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), .max_entries = MAX_ENTRIES, }; -struct bpf_map_def SEC("maps") lru_hash_map = { +struct bpf_map_def_legacy SEC("maps") lru_hash_map = { .type = BPF_MAP_TYPE_LRU_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), .max_entries = 10000, }; -struct bpf_map_def SEC("maps") nocommon_lru_hash_map = { +struct bpf_map_def_legacy SEC("maps") nocommon_lru_hash_map = { .type = BPF_MAP_TYPE_LRU_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), @@ -35,7 +37,7 @@ struct bpf_map_def SEC("maps") nocommon_lru_hash_map = { .map_flags = BPF_F_NO_COMMON_LRU, }; -struct bpf_map_def SEC("maps") inner_lru_hash_map = { +struct bpf_map_def_legacy SEC("maps") inner_lru_hash_map = { .type = BPF_MAP_TYPE_LRU_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), @@ -44,20 +46,20 @@ struct bpf_map_def SEC("maps") inner_lru_hash_map = { .numa_node = 0, }; -struct bpf_map_def SEC("maps") array_of_lru_hashs = { +struct bpf_map_def_legacy SEC("maps") array_of_lru_hashs = { .type = BPF_MAP_TYPE_ARRAY_OF_MAPS, .key_size = sizeof(u32), .max_entries = MAX_NR_CPUS, }; -struct bpf_map_def SEC("maps") percpu_hash_map = { +struct bpf_map_def_legacy SEC("maps") percpu_hash_map = { .type = BPF_MAP_TYPE_PERCPU_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), .max_entries = MAX_ENTRIES, }; -struct bpf_map_def SEC("maps") hash_map_alloc = { +struct bpf_map_def_legacy SEC("maps") hash_map_alloc = { .type = BPF_MAP_TYPE_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), @@ -65,7 +67,7 @@ struct bpf_map_def SEC("maps") hash_map_alloc = { .map_flags = BPF_F_NO_PREALLOC, }; -struct bpf_map_def SEC("maps") percpu_hash_map_alloc = { +struct bpf_map_def_legacy SEC("maps") percpu_hash_map_alloc = { .type = BPF_MAP_TYPE_PERCPU_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), @@ -73,7 +75,7 @@ struct bpf_map_def SEC("maps") percpu_hash_map_alloc = { .map_flags = BPF_F_NO_PREALLOC, }; -struct bpf_map_def SEC("maps") lpm_trie_map_alloc = { +struct bpf_map_def_legacy SEC("maps") lpm_trie_map_alloc = { .type = BPF_MAP_TYPE_LPM_TRIE, .key_size = 8, .value_size = sizeof(long), @@ -81,14 +83,14 @@ struct bpf_map_def SEC("maps") lpm_trie_map_alloc = { .map_flags = BPF_F_NO_PREALLOC, }; -struct bpf_map_def SEC("maps") array_map = { +struct bpf_map_def_legacy SEC("maps") array_map = { .type = BPF_MAP_TYPE_ARRAY, .key_size = sizeof(u32), .value_size = sizeof(long), .max_entries = MAX_ENTRIES, }; -struct bpf_map_def SEC("maps") lru_hash_lookup_map = { +struct bpf_map_def_legacy SEC("maps") lru_hash_lookup_map = { .type = BPF_MAP_TYPE_LRU_HASH, .key_size = sizeof(u32), .value_size = sizeof(long), @@ -179,8 +181,8 @@ int stress_lru_hmap_alloc(struct pt_regs *ctx) if (addrlen != sizeof(*in6)) return 0; - ret = bpf_probe_read(test_params.dst6, sizeof(test_params.dst6), - &in6->sin6_addr); + ret = bpf_probe_read_user(test_params.dst6, sizeof(test_params.dst6), + &in6->sin6_addr); if (ret) goto done; diff --git a/samples/bpf/offwaketime_kern.c b/samples/bpf/offwaketime_kern.c index e7d9a0a3d45b..9cb5207a692f 100644 --- a/samples/bpf/offwaketime_kern.c +++ b/samples/bpf/offwaketime_kern.c @@ -6,6 +6,7 @@ */ #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" #include <uapi/linux/ptrace.h> #include <uapi/linux/perf_event.h> #include <linux/version.h> diff --git a/samples/bpf/parse_ldabs.c b/samples/bpf/parse_ldabs.c index 6db6b21fdc6d..ef5892377beb 100644 --- a/samples/bpf/parse_ldabs.c +++ b/samples/bpf/parse_ldabs.c @@ -12,6 +12,7 @@ #include <linux/udp.h> #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" #define DEFAULT_PKTGEN_UDP_PORT 9 #define IP_MF 0x2000 diff --git a/samples/bpf/sampleip_kern.c b/samples/bpf/sampleip_kern.c index ceabf31079cf..4a190893894f 100644 --- a/samples/bpf/sampleip_kern.c +++ b/samples/bpf/sampleip_kern.c @@ -9,6 +9,7 @@ #include <uapi/linux/bpf.h> #include <uapi/linux/bpf_perf_event.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" #define MAX_IPS 8192 diff --git a/samples/bpf/sockex1_kern.c b/samples/bpf/sockex1_kern.c index ed18e9a4909c..2408dbfb7a21 100644 --- a/samples/bpf/sockex1_kern.c +++ b/samples/bpf/sockex1_kern.c @@ -3,13 +3,14 @@ #include <uapi/linux/if_packet.h> #include <uapi/linux/ip.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" -struct bpf_map_def SEC("maps") my_map = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(long), - .max_entries = 256, -}; +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, u32); + __type(value, long); + __uint(max_entries, 256); +} my_map SEC(".maps"); SEC("socket1") int bpf_prog1(struct __sk_buff *skb) diff --git a/samples/bpf/sockex2_kern.c b/samples/bpf/sockex2_kern.c index f2f9dbc021b0..a7bcd03bf529 100644 --- a/samples/bpf/sockex2_kern.c +++ b/samples/bpf/sockex2_kern.c @@ -1,5 +1,6 @@ #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" #include <uapi/linux/in.h> #include <uapi/linux/if.h> #include <uapi/linux/if_ether.h> @@ -189,12 +190,12 @@ struct pair { long bytes; }; -struct bpf_map_def SEC("maps") hash_map = { - .type = BPF_MAP_TYPE_HASH, - .key_size = sizeof(__be32), - .value_size = sizeof(struct pair), - .max_entries = 1024, -}; +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, __be32); + __type(value, struct pair); + __uint(max_entries, 1024); +} hash_map SEC(".maps"); SEC("socket2") int bpf_prog2(struct __sk_buff *skb) diff --git a/samples/bpf/sockex3_kern.c b/samples/bpf/sockex3_kern.c index c527b57d3ec8..151dd842ecc0 100644 --- a/samples/bpf/sockex3_kern.c +++ b/samples/bpf/sockex3_kern.c @@ -6,6 +6,7 @@ */ #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" #include <uapi/linux/in.h> #include <uapi/linux/if.h> #include <uapi/linux/if_ether.h> diff --git a/samples/bpf/spintest_kern.c b/samples/bpf/spintest_kern.c index ce0167d09cdc..6e9478aa2938 100644 --- a/samples/bpf/spintest_kern.c +++ b/samples/bpf/spintest_kern.c @@ -10,6 +10,7 @@ #include <uapi/linux/bpf.h> #include <uapi/linux/perf_event.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" struct bpf_map_def SEC("maps") my_map = { .type = BPF_MAP_TYPE_HASH, diff --git a/samples/bpf/syscall_tp_kern.c b/samples/bpf/syscall_tp_kern.c index 1d78819ffef1..630ce8c4d5a2 100644 --- a/samples/bpf/syscall_tp_kern.c +++ b/samples/bpf/syscall_tp_kern.c @@ -47,13 +47,27 @@ static __always_inline void count(void *map) SEC("tracepoint/syscalls/sys_enter_open") int trace_enter_open(struct syscalls_enter_open_args *ctx) { - count((void *)&enter_open_map); + count(&enter_open_map); + return 0; +} + +SEC("tracepoint/syscalls/sys_enter_openat") +int trace_enter_open_at(struct syscalls_enter_open_args *ctx) +{ + count(&enter_open_map); return 0; } SEC("tracepoint/syscalls/sys_exit_open") int trace_enter_exit(struct syscalls_exit_open_args *ctx) { - count((void *)&exit_open_map); + count(&exit_open_map); + return 0; +} + +SEC("tracepoint/syscalls/sys_exit_openat") +int trace_enter_exit_at(struct syscalls_exit_open_args *ctx) +{ + count(&exit_open_map); return 0; } diff --git a/samples/bpf/tcbpf1_kern.c b/samples/bpf/tcbpf1_kern.c index 274c884c87fe..ff43341bdfce 100644 --- a/samples/bpf/tcbpf1_kern.c +++ b/samples/bpf/tcbpf1_kern.c @@ -8,6 +8,7 @@ #include <uapi/linux/filter.h> #include <uapi/linux/pkt_cls.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" /* compiler workaround */ #define _htonl __builtin_bswap32 diff --git a/samples/bpf/test_map_in_map_kern.c b/samples/bpf/test_map_in_map_kern.c index 42c44d091dd1..32ee752f19df 100644 --- a/samples/bpf/test_map_in_map_kern.c +++ b/samples/bpf/test_map_in_map_kern.c @@ -11,11 +11,13 @@ #include <uapi/linux/bpf.h> #include <uapi/linux/in6.h> #include "bpf_helpers.h" +#include "bpf_legacy.h" +#include "bpf_tracing.h" #define MAX_NR_PORTS 65536 /* map #0 */ -struct bpf_map_def SEC("maps") port_a = { +struct bpf_map_def_legacy SEC("maps") port_a = { .type = BPF_MAP_TYPE_ARRAY, .key_size = sizeof(u32), .value_size = sizeof(int), @@ -23,7 +25,7 @@ struct bpf_map_def SEC("maps") port_a = { }; /* map #1 */ -struct bpf_map_def SEC("maps") port_h = { +struct bpf_map_def_legacy SEC("maps") port_h = { .type = BPF_MAP_TYPE_HASH, .key_size = sizeof(u32), .value_size = sizeof(int), @@ -31,7 +33,7 @@ struct bpf_map_def SEC("maps") port_h = { }; /* map #2 */ -struct bpf_map_def SEC("maps") reg_result_h = { +struct bpf_map_def_legacy SEC("maps") reg_result_h = { .type = BPF_MAP_TYPE_HASH, .key_size = sizeof(u32), .value_size = sizeof(int), @@ -39,7 +41,7 @@ struct bpf_map_def SEC("maps") reg_result_h = { }; /* map #3 */ -struct bpf_map_def SEC("maps") inline_result_h = { +struct bpf_map_def_legacy SEC("maps") inline_result_h = { .type = BPF_MAP_TYPE_HASH, .key_size = sizeof(u32), .value_size = sizeof(int), @@ -47,7 +49,7 @@ struct bpf_map_def SEC("maps") inline_result_h = { }; /* map #4 */ /* Test case #0 */ -struct bpf_map_def SEC("maps") a_of_port_a = { +struct bpf_map_def_legacy SEC("maps") a_of_port_a = { .type = BPF_MAP_TYPE_ARRAY_OF_MAPS, .key_size = sizeof(u32), .inner_map_idx = 0, /* map_fd[0] is port_a */ @@ -55,7 +57,7 @@ struct bpf_map_def SEC("maps") a_of_port_a = { }; /* map #5 */ /* Test case #1 */ -struct bpf_map_def SEC("maps") h_of_port_a = { +struct bpf_map_def_legacy SEC("maps") h_of_port_a = { .type = BPF_MAP_TYPE_HASH_OF_MAPS, .key_size = sizeof(u32), .inner_map_idx = 0, /* map_fd[0] is port_a */ @@ -63,7 +65,7 @@ struct bpf_map_def SEC("maps") h_of_port_a = { }; /* map #6 */ /* Test case #2 */ -struct bpf_map_def SEC("maps") h_of_port_h = { +struct bpf_map_def_legacy SEC("maps") h_of_port_h = { .type = BPF_MAP_TYPE_HASH_OF_MAPS, .key_size = sizeof(u32), .inner_map_idx = 1, /* map_fd[1] is port_h */ @@ -116,7 +118,7 @@ int trace_sys_connect(struct pt_regs *ctx) if (addrlen != sizeof(*in6)) return 0; - ret = bpf_probe_read(dst6, sizeof(dst6), &in6->sin6_addr); + ret = bpf_probe_read_user(dst6, sizeof(dst6), &in6->sin6_addr); if (ret) { inline_ret = ret; goto done; @@ -127,7 +129,7 @@ int trace_sys_connect(struct pt_regs *ctx) test_case = dst6[7]; - ret = bpf_probe_read(&port, sizeof(port), &in6->sin6_port); + ret = bpf_probe_read_user(&port, sizeof(port), &in6->sin6_port); if (ret) { inline_ret = ret; goto done; diff --git a/samples/bpf/test_overhead_kprobe_kern.c b/samples/bpf/test_overhead_kprobe_kern.c index 468a66a92ef9..8d2518e68db9 100644 --- a/samples/bpf/test_overhead_kprobe_kern.c +++ b/samples/bpf/test_overhead_kprobe_kern.c @@ -8,6 +8,7 @@ #include <linux/ptrace.h> #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" #define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;}) diff --git a/samples/bpf/test_probe_write_user_kern.c b/samples/bpf/test_probe_write_user_kern.c index 3a677c807044..b7c48f37132c 100644 --- a/samples/bpf/test_probe_write_user_kern.c +++ b/samples/bpf/test_probe_write_user_kern.c @@ -9,6 +9,7 @@ #include <uapi/linux/bpf.h> #include <linux/version.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" struct bpf_map_def SEC("maps") dnat_map = { .type = BPF_MAP_TYPE_HASH, @@ -36,7 +37,7 @@ int bpf_prog1(struct pt_regs *ctx) if (sockaddr_len > sizeof(orig_addr)) return 0; - if (bpf_probe_read(&orig_addr, sizeof(orig_addr), sockaddr_arg) != 0) + if (bpf_probe_read_user(&orig_addr, sizeof(orig_addr), sockaddr_arg) != 0) return 0; mapped_addr = bpf_map_lookup_elem(&dnat_map, &orig_addr); diff --git a/samples/bpf/trace_event_kern.c b/samples/bpf/trace_event_kern.c index 7068fbdde951..8dc18d233a27 100644 --- a/samples/bpf/trace_event_kern.c +++ b/samples/bpf/trace_event_kern.c @@ -10,6 +10,7 @@ #include <uapi/linux/bpf_perf_event.h> #include <uapi/linux/perf_event.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" struct key_t { char comm[TASK_COMM_LEN]; diff --git a/samples/bpf/trace_event_user.c b/samples/bpf/trace_event_user.c index 16a16eadd509..749a50f2f9f3 100644 --- a/samples/bpf/trace_event_user.c +++ b/samples/bpf/trace_event_user.c @@ -37,9 +37,9 @@ static void print_ksym(__u64 addr) } printf("%s;", sym->name); - if (!strcmp(sym->name, "sys_read")) + if (!strstr(sym->name, "sys_read")) sys_read_seen = true; - else if (!strcmp(sym->name, "sys_write")) + else if (!strstr(sym->name, "sys_write")) sys_write_seen = true; } diff --git a/samples/bpf/tracex1_kern.c b/samples/bpf/tracex1_kern.c index 107da148820f..1a15f6605129 100644 --- a/samples/bpf/tracex1_kern.c +++ b/samples/bpf/tracex1_kern.c @@ -9,6 +9,7 @@ #include <uapi/linux/bpf.h> #include <linux/version.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" #define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;}) diff --git a/samples/bpf/tracex2_kern.c b/samples/bpf/tracex2_kern.c index 5e11c20ce5ec..d70b3ea79ea7 100644 --- a/samples/bpf/tracex2_kern.c +++ b/samples/bpf/tracex2_kern.c @@ -9,6 +9,7 @@ #include <linux/version.h> #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" struct bpf_map_def SEC("maps") my_map = { .type = BPF_MAP_TYPE_HASH, diff --git a/samples/bpf/tracex3_kern.c b/samples/bpf/tracex3_kern.c index ea1d4c19c132..9af546bebfa9 100644 --- a/samples/bpf/tracex3_kern.c +++ b/samples/bpf/tracex3_kern.c @@ -9,6 +9,7 @@ #include <linux/version.h> #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" struct bpf_map_def SEC("maps") my_map = { .type = BPF_MAP_TYPE_HASH, diff --git a/samples/bpf/tracex4_kern.c b/samples/bpf/tracex4_kern.c index 6dd8e384de96..2a02cbe9d9a1 100644 --- a/samples/bpf/tracex4_kern.c +++ b/samples/bpf/tracex4_kern.c @@ -8,6 +8,7 @@ #include <linux/version.h> #include <uapi/linux/bpf.h> #include "bpf_helpers.h" +#include "bpf_tracing.h" struct pair { u64 val; diff --git a/samples/bpf/tracex5_kern.c b/samples/bpf/tracex5_kern.c index 35cb0eed3be5..b3557b21a8fe 100644 --- a/samples/bpf/tracex5_kern.c +++ b/samples/bpf/tracex5_kern.c @@ -11,6 +11,7 @@ #include <uapi/linux/unistd.h> #include "syscall_nrs.h" #include "bpf_helpers.h" +#include "bpf_tracing.h" #define PROG(F) SEC("kprobe/"__stringify(F)) int bpf_func_##F diff --git a/samples/bpf/xdp1_kern.c b/samples/bpf/xdp1_kern.c index 219742106bfd..db6870aee42c 100644 --- a/samples/bpf/xdp1_kern.c +++ b/samples/bpf/xdp1_kern.c @@ -14,12 +14,12 @@ #include <linux/ipv6.h> #include "bpf_helpers.h" -struct bpf_map_def SEC("maps") rxcnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(long), - .max_entries = 256, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, long); + __uint(max_entries, 256); +} rxcnt SEC(".maps"); static int parse_ipv4(void *data, u64 nh_off, void *data_end) { diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c index a8e5fa02e8a8..3e553eed95a7 100644 --- a/samples/bpf/xdp1_user.c +++ b/samples/bpf/xdp1_user.c @@ -139,7 +139,7 @@ int main(int argc, char **argv) map_fd = bpf_map__fd(map); if (!prog_fd) { - printf("load_bpf_file: %s\n", strerror(errno)); + printf("bpf_prog_load_xattr: %s\n", strerror(errno)); return 1; } diff --git a/samples/bpf/xdp2_kern.c b/samples/bpf/xdp2_kern.c index e01288867d15..c74b52c6d945 100644 --- a/samples/bpf/xdp2_kern.c +++ b/samples/bpf/xdp2_kern.c @@ -14,12 +14,12 @@ #include <linux/ipv6.h> #include "bpf_helpers.h" -struct bpf_map_def SEC("maps") rxcnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(long), - .max_entries = 256, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, long); + __uint(max_entries, 256); +} rxcnt SEC(".maps"); static void swap_src_dst_mac(void *data) { diff --git a/samples/bpf/xdp_adjust_tail_kern.c b/samples/bpf/xdp_adjust_tail_kern.c index 411fdb21f8bc..0f707e0fb375 100644 --- a/samples/bpf/xdp_adjust_tail_kern.c +++ b/samples/bpf/xdp_adjust_tail_kern.c @@ -25,12 +25,15 @@ #define ICMP_TOOBIG_SIZE 98 #define ICMP_TOOBIG_PAYLOAD_SIZE 92 -struct bpf_map_def SEC("maps") icmpcnt = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(__u32), - .value_size = sizeof(__u64), - .max_entries = 1, -}; +/* volatile to prevent compiler optimizations */ +static volatile __u32 max_pcktsz = MAX_PCKT_SIZE; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, __u32); + __type(value, __u64); + __uint(max_entries, 1); +} icmpcnt SEC(".maps"); static __always_inline void count_icmp(void) { @@ -92,7 +95,7 @@ static __always_inline int send_icmp4_too_big(struct xdp_md *xdp) orig_iph = data + off; icmp_hdr->type = ICMP_DEST_UNREACH; icmp_hdr->code = ICMP_FRAG_NEEDED; - icmp_hdr->un.frag.mtu = htons(MAX_PCKT_SIZE-sizeof(struct ethhdr)); + icmp_hdr->un.frag.mtu = htons(max_pcktsz - sizeof(struct ethhdr)); icmp_hdr->checksum = 0; ipv4_csum(icmp_hdr, ICMP_TOOBIG_PAYLOAD_SIZE, &csum); icmp_hdr->checksum = csum; @@ -121,7 +124,7 @@ static __always_inline int handle_ipv4(struct xdp_md *xdp) int pckt_size = data_end - data; int offset; - if (pckt_size > MAX_PCKT_SIZE) { + if (pckt_size > max(max_pcktsz, ICMP_TOOBIG_SIZE)) { offset = pckt_size - ICMP_TOOBIG_SIZE; if (bpf_xdp_adjust_tail(xdp, 0 - offset)) return XDP_PASS; diff --git a/samples/bpf/xdp_adjust_tail_user.c b/samples/bpf/xdp_adjust_tail_user.c index a3596b617c4c..d86e9ad0356b 100644 --- a/samples/bpf/xdp_adjust_tail_user.c +++ b/samples/bpf/xdp_adjust_tail_user.c @@ -23,6 +23,7 @@ #include "libbpf.h" #define STATS_INTERVAL_S 2U +#define MAX_PCKT_SIZE 600 static int ifindex = -1; static __u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST; @@ -72,6 +73,7 @@ static void usage(const char *cmd) printf("Usage: %s [...]\n", cmd); printf(" -i <ifname|ifindex> Interface\n"); printf(" -T <stop-after-X-seconds> Default: 0 (forever)\n"); + printf(" -P <MAX_PCKT_SIZE> Default: %u\n", MAX_PCKT_SIZE); printf(" -S use skb-mode\n"); printf(" -N enforce native mode\n"); printf(" -F force loading prog\n"); @@ -85,13 +87,14 @@ int main(int argc, char **argv) .prog_type = BPF_PROG_TYPE_XDP, }; unsigned char opt_flags[256] = {}; - const char *optstr = "i:T:SNFh"; + const char *optstr = "i:T:P:SNFh"; struct bpf_prog_info info = {}; __u32 info_len = sizeof(info); unsigned int kill_after_s = 0; int i, prog_fd, map_fd, opt; struct bpf_object *obj; - struct bpf_map *map; + __u32 max_pckt_size = 0; + __u32 key = 0; char filename[256]; int err; @@ -110,6 +113,9 @@ int main(int argc, char **argv) case 'T': kill_after_s = atoi(optarg); break; + case 'P': + max_pckt_size = atoi(optarg); + break; case 'S': xdp_flags |= XDP_FLAGS_SKB_MODE; break; @@ -150,15 +156,20 @@ int main(int argc, char **argv) if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd)) return 1; - map = bpf_map__next(NULL, obj); - if (!map) { - printf("finding a map in obj file failed\n"); - return 1; + /* static global var 'max_pcktsz' is accessible from .data section */ + if (max_pckt_size) { + map_fd = bpf_object__find_map_fd_by_name(obj, "xdp_adju.data"); + if (map_fd < 0) { + printf("finding a max_pcktsz map in obj file failed\n"); + return 1; + } + bpf_map_update_elem(map_fd, &key, &max_pckt_size, BPF_ANY); } - map_fd = bpf_map__fd(map); - if (!prog_fd) { - printf("load_bpf_file: %s\n", strerror(errno)); + /* fetch icmpcnt map */ + map_fd = bpf_object__find_map_fd_by_name(obj, "icmpcnt"); + if (map_fd < 0) { + printf("finding a icmpcnt map in obj file failed\n"); return 1; } diff --git a/samples/bpf/xdp_fwd_kern.c b/samples/bpf/xdp_fwd_kern.c index 701a30f258b1..d013029aeaa2 100644 --- a/samples/bpf/xdp_fwd_kern.c +++ b/samples/bpf/xdp_fwd_kern.c @@ -23,13 +23,12 @@ #define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF) -/* For TX-traffic redirect requires net_device ifindex to be in this devmap */ -struct bpf_map_def SEC("maps") xdp_tx_ports = { - .type = BPF_MAP_TYPE_DEVMAP, - .key_size = sizeof(int), - .value_size = sizeof(int), - .max_entries = 64, -}; +struct { + __uint(type, BPF_MAP_TYPE_DEVMAP); + __uint(key_size, sizeof(int)); + __uint(value_size, sizeof(int)); + __uint(max_entries, 64); +} xdp_tx_ports SEC(".maps"); /* from include/net/ip.h */ static __always_inline int ip_decrease_ttl(struct iphdr *iph) diff --git a/samples/bpf/xdp_redirect_cpu_kern.c b/samples/bpf/xdp_redirect_cpu_kern.c index a306d1c75622..cfcc31e51197 100644 --- a/samples/bpf/xdp_redirect_cpu_kern.c +++ b/samples/bpf/xdp_redirect_cpu_kern.c @@ -18,12 +18,12 @@ #define MAX_CPUS 64 /* WARNING - sync with _user.c */ /* Special map type that can XDP_REDIRECT frames to another CPU */ -struct bpf_map_def SEC("maps") cpu_map = { - .type = BPF_MAP_TYPE_CPUMAP, - .key_size = sizeof(u32), - .value_size = sizeof(u32), - .max_entries = MAX_CPUS, -}; +struct { + __uint(type, BPF_MAP_TYPE_CPUMAP); + __uint(key_size, sizeof(u32)); + __uint(value_size, sizeof(u32)); + __uint(max_entries, MAX_CPUS); +} cpu_map SEC(".maps"); /* Common stats data record to keep userspace more simple */ struct datarec { @@ -35,67 +35,67 @@ struct datarec { /* Count RX packets, as XDP bpf_prog doesn't get direct TX-success * feedback. Redirect TX errors can be caught via a tracepoint. */ -struct bpf_map_def SEC("maps") rx_cnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, 1); +} rx_cnt SEC(".maps"); /* Used by trace point */ -struct bpf_map_def SEC("maps") redirect_err_cnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = 2, +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, 2); /* TODO: have entries for all possible errno's */ -}; +} redirect_err_cnt SEC(".maps"); /* Used by trace point */ -struct bpf_map_def SEC("maps") cpumap_enqueue_cnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = MAX_CPUS, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, MAX_CPUS); +} cpumap_enqueue_cnt SEC(".maps"); /* Used by trace point */ -struct bpf_map_def SEC("maps") cpumap_kthread_cnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, 1); +} cpumap_kthread_cnt SEC(".maps"); /* Set of maps controlling available CPU, and for iterating through * selectable redirect CPUs. */ -struct bpf_map_def SEC("maps") cpus_available = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(u32), - .max_entries = MAX_CPUS, -}; -struct bpf_map_def SEC("maps") cpus_count = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(u32), - .max_entries = 1, -}; -struct bpf_map_def SEC("maps") cpus_iterator = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(u32), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, u32); + __type(value, u32); + __uint(max_entries, MAX_CPUS); +} cpus_available SEC(".maps"); +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, u32); + __type(value, u32); + __uint(max_entries, 1); +} cpus_count SEC(".maps"); +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, u32); + __uint(max_entries, 1); +} cpus_iterator SEC(".maps"); /* Used by trace point */ -struct bpf_map_def SEC("maps") exception_cnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, 1); +} exception_cnt SEC(".maps"); /* Helper parse functions */ diff --git a/samples/bpf/xdp_redirect_kern.c b/samples/bpf/xdp_redirect_kern.c index 8abb151e385f..1f0b7d05abb2 100644 --- a/samples/bpf/xdp_redirect_kern.c +++ b/samples/bpf/xdp_redirect_kern.c @@ -19,22 +19,22 @@ #include <linux/ipv6.h> #include "bpf_helpers.h" -struct bpf_map_def SEC("maps") tx_port = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(int), - .value_size = sizeof(int), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, int); + __type(value, int); + __uint(max_entries, 1); +} tx_port SEC(".maps"); /* Count RX packets, as XDP bpf_prog doesn't get direct TX-success * feedback. Redirect TX errors can be caught via a tracepoint. */ -struct bpf_map_def SEC("maps") rxcnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(long), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, long); + __uint(max_entries, 1); +} rxcnt SEC(".maps"); static void swap_src_dst_mac(void *data) { diff --git a/samples/bpf/xdp_redirect_map_kern.c b/samples/bpf/xdp_redirect_map_kern.c index 740a529ba84f..4631b484c432 100644 --- a/samples/bpf/xdp_redirect_map_kern.c +++ b/samples/bpf/xdp_redirect_map_kern.c @@ -19,22 +19,22 @@ #include <linux/ipv6.h> #include "bpf_helpers.h" -struct bpf_map_def SEC("maps") tx_port = { - .type = BPF_MAP_TYPE_DEVMAP, - .key_size = sizeof(int), - .value_size = sizeof(int), - .max_entries = 100, -}; +struct { + __uint(type, BPF_MAP_TYPE_DEVMAP); + __uint(key_size, sizeof(int)); + __uint(value_size, sizeof(int)); + __uint(max_entries, 100); +} tx_port SEC(".maps"); /* Count RX packets, as XDP bpf_prog doesn't get direct TX-success * feedback. Redirect TX errors can be caught via a tracepoint. */ -struct bpf_map_def SEC("maps") rxcnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(long), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, long); + __uint(max_entries, 1); +} rxcnt SEC(".maps"); static void swap_src_dst_mac(void *data) { diff --git a/samples/bpf/xdp_router_ipv4_kern.c b/samples/bpf/xdp_router_ipv4_kern.c index 993f56bc7b9a..bf11efc8e949 100644 --- a/samples/bpf/xdp_router_ipv4_kern.c +++ b/samples/bpf/xdp_router_ipv4_kern.c @@ -42,44 +42,44 @@ struct direct_map { }; /* Map for trie implementation*/ -struct bpf_map_def SEC("maps") lpm_map = { - .type = BPF_MAP_TYPE_LPM_TRIE, - .key_size = 8, - .value_size = sizeof(struct trie_value), - .max_entries = 50, - .map_flags = BPF_F_NO_PREALLOC, -}; +struct { + __uint(type, BPF_MAP_TYPE_LPM_TRIE); + __uint(key_size, 8); + __uint(value_size, sizeof(struct trie_value)); + __uint(max_entries, 50); + __uint(map_flags, BPF_F_NO_PREALLOC); +} lpm_map SEC(".maps"); /* Map for counter*/ -struct bpf_map_def SEC("maps") rxcnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(u64), - .max_entries = 256, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, u64); + __uint(max_entries, 256); +} rxcnt SEC(".maps"); /* Map for ARP table*/ -struct bpf_map_def SEC("maps") arp_table = { - .type = BPF_MAP_TYPE_HASH, - .key_size = sizeof(__be32), - .value_size = sizeof(__be64), - .max_entries = 50, -}; +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, __be32); + __type(value, __be64); + __uint(max_entries, 50); +} arp_table SEC(".maps"); /* Map to keep the exact match entries in the route table*/ -struct bpf_map_def SEC("maps") exact_match = { - .type = BPF_MAP_TYPE_HASH, - .key_size = sizeof(__be32), - .value_size = sizeof(struct direct_map), - .max_entries = 50, -}; - -struct bpf_map_def SEC("maps") tx_port = { - .type = BPF_MAP_TYPE_DEVMAP, - .key_size = sizeof(int), - .value_size = sizeof(int), - .max_entries = 100, -}; +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, __be32); + __type(value, struct direct_map); + __uint(max_entries, 50); +} exact_match SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_DEVMAP); + __uint(key_size, sizeof(int)); + __uint(value_size, sizeof(int)); + __uint(max_entries, 100); +} tx_port SEC(".maps"); /* Function to set source and destination mac of the packet */ static inline void set_src_dst_mac(void *data, void *src, void *dst) diff --git a/samples/bpf/xdp_rxq_info_kern.c b/samples/bpf/xdp_rxq_info_kern.c index 222a83eed1cb..272d0f82a6b5 100644 --- a/samples/bpf/xdp_rxq_info_kern.c +++ b/samples/bpf/xdp_rxq_info_kern.c @@ -23,12 +23,13 @@ enum cfg_options_flags { READ_MEM = 0x1U, SWAP_MAC = 0x2U, }; -struct bpf_map_def SEC("maps") config_map = { - .type = BPF_MAP_TYPE_ARRAY, - .key_size = sizeof(int), - .value_size = sizeof(struct config), - .max_entries = 1, -}; + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, int); + __type(value, struct config); + __uint(max_entries, 1); +} config_map SEC(".maps"); /* Common stats data record (shared with userspace) */ struct datarec { @@ -36,22 +37,22 @@ struct datarec { __u64 issue; }; -struct bpf_map_def SEC("maps") stats_global_map = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, 1); +} stats_global_map SEC(".maps"); #define MAX_RXQs 64 /* Stats per rx_queue_index (per CPU) */ -struct bpf_map_def SEC("maps") rx_queue_index_map = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(struct datarec), - .max_entries = MAX_RXQs + 1, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, u32); + __type(value, struct datarec); + __uint(max_entries, MAX_RXQs + 1); +} rx_queue_index_map SEC(".maps"); static __always_inline void swap_src_dst_mac(void *data) diff --git a/samples/bpf/xdp_rxq_info_user.c b/samples/bpf/xdp_rxq_info_user.c index c7e4e45d824a..8fc3ad01de72 100644 --- a/samples/bpf/xdp_rxq_info_user.c +++ b/samples/bpf/xdp_rxq_info_user.c @@ -51,8 +51,8 @@ static const struct option long_options[] = { {"sec", required_argument, NULL, 's' }, {"no-separators", no_argument, NULL, 'z' }, {"action", required_argument, NULL, 'a' }, - {"readmem", no_argument, NULL, 'r' }, - {"swapmac", no_argument, NULL, 'm' }, + {"readmem", no_argument, NULL, 'r' }, + {"swapmac", no_argument, NULL, 'm' }, {"force", no_argument, NULL, 'F' }, {0, 0, NULL, 0 } }; @@ -489,9 +489,9 @@ int main(int argc, char **argv) if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd)) return EXIT_FAIL; - map = bpf_map__next(NULL, obj); - stats_global_map = bpf_map__next(map, obj); - rx_queue_index_map = bpf_map__next(stats_global_map, obj); + map = bpf_object__find_map_by_name(obj, "config_map"); + stats_global_map = bpf_object__find_map_by_name(obj, "stats_global_map"); + rx_queue_index_map = bpf_object__find_map_by_name(obj, "rx_queue_index_map"); if (!map || !stats_global_map || !rx_queue_index_map) { printf("finding a map in obj file failed\n"); return EXIT_FAIL; @@ -499,7 +499,7 @@ int main(int argc, char **argv) map_fd = bpf_map__fd(map); if (!prog_fd) { - fprintf(stderr, "ERR: load_bpf_file: %s\n", strerror(errno)); + fprintf(stderr, "ERR: bpf_prog_load_xattr: %s\n", strerror(errno)); return EXIT_FAIL; } diff --git a/samples/bpf/xdp_sample_pkts_user.c b/samples/bpf/xdp_sample_pkts_user.c index 3002714e3cd5..a5760e8bf2c4 100644 --- a/samples/bpf/xdp_sample_pkts_user.c +++ b/samples/bpf/xdp_sample_pkts_user.c @@ -150,7 +150,7 @@ int main(int argc, char **argv) return 1; if (!prog_fd) { - printf("load_bpf_file: %s\n", strerror(errno)); + printf("bpf_prog_load_xattr: %s\n", strerror(errno)); return 1; } diff --git a/samples/bpf/xdp_tx_iptunnel_kern.c b/samples/bpf/xdp_tx_iptunnel_kern.c index 0f4f6e8c8611..6db450a5c1ca 100644 --- a/samples/bpf/xdp_tx_iptunnel_kern.c +++ b/samples/bpf/xdp_tx_iptunnel_kern.c @@ -19,19 +19,19 @@ #include "bpf_helpers.h" #include "xdp_tx_iptunnel_common.h" -struct bpf_map_def SEC("maps") rxcnt = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(__u32), - .value_size = sizeof(__u64), - .max_entries = 256, -}; - -struct bpf_map_def SEC("maps") vip2tnl = { - .type = BPF_MAP_TYPE_HASH, - .key_size = sizeof(struct vip), - .value_size = sizeof(struct iptnl_info), - .max_entries = MAX_IPTNL_ENTRIES, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __type(key, __u32); + __type(value, __u64); + __uint(max_entries, 256); +} rxcnt SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, struct vip); + __type(value, struct iptnl_info); + __uint(max_entries, MAX_IPTNL_ENTRIES); +} vip2tnl SEC(".maps"); static __always_inline void count_tx(u32 protocol) { diff --git a/samples/bpf/xdp_tx_iptunnel_user.c b/samples/bpf/xdp_tx_iptunnel_user.c index dfb68582e243..2fe4c7f5ffe5 100644 --- a/samples/bpf/xdp_tx_iptunnel_user.c +++ b/samples/bpf/xdp_tx_iptunnel_user.c @@ -268,7 +268,7 @@ int main(int argc, char **argv) return 1; if (!prog_fd) { - printf("load_bpf_file: %s\n", strerror(errno)); + printf("bpf_prog_load_xattr: %s\n", strerror(errno)); return 1; } diff --git a/samples/bpf/xdpsock.h b/samples/bpf/xdpsock.h new file mode 100644 index 000000000000..b7eca15c78cc --- /dev/null +++ b/samples/bpf/xdpsock.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright(c) 2019 Intel Corporation. + */ + +#ifndef XDPSOCK_H_ +#define XDPSOCK_H_ + +#define MAX_SOCKS 4 + +#endif /* XDPSOCK_H */ diff --git a/samples/bpf/xdpsock_kern.c b/samples/bpf/xdpsock_kern.c new file mode 100644 index 000000000000..a06177c262cd --- /dev/null +++ b/samples/bpf/xdpsock_kern.c @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/bpf.h> +#include "bpf_helpers.h" +#include "xdpsock.h" + +/* This XDP program is only needed for the XDP_SHARED_UMEM mode. + * If you do not use this mode, libbpf can supply an XDP program for you. + */ + +struct { + __uint(type, BPF_MAP_TYPE_XSKMAP); + __uint(max_entries, MAX_SOCKS); + __uint(key_size, sizeof(int)); + __uint(value_size, sizeof(int)); +} xsks_map SEC(".maps"); + +static unsigned int rr; + +SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx) +{ + rr = (rr + 1) & (MAX_SOCKS - 1); + + return bpf_redirect_map(&xsks_map, rr, XDP_DROP); +} diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index df011ac33402..a15480010828 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -29,6 +29,7 @@ #include "libbpf.h" #include "xsk.h" +#include "xdpsock.h" #include <bpf/bpf.h> #ifndef SOL_XDP @@ -47,7 +48,6 @@ #define BATCH_SIZE 64 #define DEBUG_HEXDUMP 0 -#define MAX_SOCKS 8 typedef __u64 u64; typedef __u32 u32; @@ -75,7 +75,8 @@ static u32 opt_xdp_bind_flags; static int opt_xsk_frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE; static int opt_timeout = 1000; static bool opt_need_wakeup = true; -static __u32 prog_id; +static u32 opt_num_xsks = 1; +static u32 prog_id; struct xsk_umem_info { struct xsk_ring_prod fq; @@ -179,7 +180,7 @@ static void *poller(void *arg) static void remove_xdp_program(void) { - __u32 curr_prog_id = 0; + u32 curr_prog_id = 0; if (bpf_get_link_xdp_id(opt_ifindex, &curr_prog_id, opt_xdp_flags)) { printf("bpf_get_link_xdp_id failed\n"); @@ -196,11 +197,11 @@ static void remove_xdp_program(void) static void int_exit(int sig) { struct xsk_umem *umem = xsks[0]->umem->umem; - - (void)sig; + int i; dump_stats(); - xsk_socket__delete(xsks[0]->xsk); + for (i = 0; i < num_socks; i++) + xsk_socket__delete(xsks[i]->xsk); (void)xsk_umem__delete(umem); remove_xdp_program(); @@ -290,7 +291,6 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) .frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM, .flags = opt_umem_flags }; - int ret; umem = calloc(1, sizeof(*umem)); @@ -299,7 +299,6 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) ret = xsk_umem__create(&umem->umem, buffer, size, &umem->fq, &umem->cq, &cfg); - if (ret) exit_with_error(-ret); @@ -307,13 +306,29 @@ static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size) return umem; } -static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem) +static void xsk_populate_fill_ring(struct xsk_umem_info *umem) +{ + int ret, i; + u32 idx; + + ret = xsk_ring_prod__reserve(&umem->fq, + XSK_RING_PROD__DEFAULT_NUM_DESCS, &idx); + if (ret != XSK_RING_PROD__DEFAULT_NUM_DESCS) + exit_with_error(-ret); + for (i = 0; i < XSK_RING_PROD__DEFAULT_NUM_DESCS; i++) + *xsk_ring_prod__fill_addr(&umem->fq, idx++) = + i * opt_xsk_frame_size; + xsk_ring_prod__submit(&umem->fq, XSK_RING_PROD__DEFAULT_NUM_DESCS); +} + +static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem, + bool rx, bool tx) { struct xsk_socket_config cfg; struct xsk_socket_info *xsk; + struct xsk_ring_cons *rxr; + struct xsk_ring_prod *txr; int ret; - u32 idx; - int i; xsk = calloc(1, sizeof(*xsk)); if (!xsk) @@ -322,11 +337,17 @@ static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem) xsk->umem = umem; cfg.rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS; cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS; - cfg.libbpf_flags = 0; + if (opt_num_xsks > 1) + cfg.libbpf_flags = XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD; + else + cfg.libbpf_flags = 0; cfg.xdp_flags = opt_xdp_flags; cfg.bind_flags = opt_xdp_bind_flags; + + rxr = rx ? &xsk->rx : NULL; + txr = tx ? &xsk->tx : NULL; ret = xsk_socket__create(&xsk->xsk, opt_if, opt_queue, umem->umem, - &xsk->rx, &xsk->tx, &cfg); + rxr, txr, &cfg); if (ret) exit_with_error(-ret); @@ -334,17 +355,6 @@ static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem) if (ret) exit_with_error(-ret); - ret = xsk_ring_prod__reserve(&xsk->umem->fq, - XSK_RING_PROD__DEFAULT_NUM_DESCS, - &idx); - if (ret != XSK_RING_PROD__DEFAULT_NUM_DESCS) - exit_with_error(-ret); - for (i = 0; i < XSK_RING_PROD__DEFAULT_NUM_DESCS; i++) - *xsk_ring_prod__fill_addr(&xsk->umem->fq, idx++) = - i * opt_xsk_frame_size; - xsk_ring_prod__submit(&xsk->umem->fq, - XSK_RING_PROD__DEFAULT_NUM_DESCS); - return xsk; } @@ -363,6 +373,8 @@ static struct option long_options[] = { {"frame-size", required_argument, 0, 'f'}, {"no-need-wakeup", no_argument, 0, 'm'}, {"unaligned", no_argument, 0, 'u'}, + {"shared-umem", no_argument, 0, 'M'}, + {"force", no_argument, 0, 'F'}, {0, 0, 0, 0} }; @@ -378,14 +390,15 @@ static void usage(const char *prog) " -q, --queue=n Use queue n (default 0)\n" " -p, --poll Use poll syscall\n" " -S, --xdp-skb=n Use XDP skb-mod\n" - " -N, --xdp-native=n Enfore XDP native mode\n" + " -N, --xdp-native=n Enforce XDP native mode\n" " -n, --interval=n Specify statistics update interval (default 1 sec).\n" " -z, --zero-copy Force zero-copy mode.\n" " -c, --copy Force copy mode.\n" - " -f, --frame-size=n Set the frame size (must be a power of two, default is %d).\n" " -m, --no-need-wakeup Turn off use of driver need wakeup flag.\n" " -f, --frame-size=n Set the frame size (must be a power of two in aligned mode, default is %d).\n" " -u, --unaligned Enable unaligned chunk placement\n" + " -M, --shared-umem Enable XDP_SHARED_UMEM\n" + " -F, --force Force loading the XDP prog\n" "\n"; fprintf(stderr, str, prog, XSK_UMEM__DEFAULT_FRAME_SIZE); exit(EXIT_FAILURE); @@ -398,7 +411,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:mu", + c = getopt_long(argc, argv, "Frtli:q:psSNn:czf:muM", long_options, &option_index); if (c == -1) break; @@ -448,11 +461,14 @@ static void parse_command_line(int argc, char **argv) break; case 'f': opt_xsk_frame_size = atoi(optarg); + break; case 'm': opt_need_wakeup = false; opt_xdp_bind_flags &= ~XDP_USE_NEED_WAKEUP; break; - + case 'M': + opt_num_xsks = MAX_SOCKS; + break; default: usage(basename(argv[0])); } @@ -586,11 +602,9 @@ static void rx_drop(struct xsk_socket_info *xsk, struct pollfd *fds) static void rx_drop_all(void) { - struct pollfd fds[MAX_SOCKS + 1]; + struct pollfd fds[MAX_SOCKS] = {}; int i, ret; - memset(fds, 0, sizeof(fds)); - for (i = 0; i < num_socks; i++) { fds[i].fd = xsk_socket__fd(xsks[i]->xsk); fds[i].events = POLLIN; @@ -633,11 +647,10 @@ static void tx_only(struct xsk_socket_info *xsk, u32 frame_nb) static void tx_only_all(void) { - struct pollfd fds[MAX_SOCKS]; + struct pollfd fds[MAX_SOCKS] = {}; u32 frame_nb[MAX_SOCKS] = {}; int i, ret; - memset(fds, 0, sizeof(fds)); for (i = 0; i < num_socks; i++) { fds[0].fd = xsk_socket__fd(xsks[i]->xsk); fds[0].events = POLLOUT; @@ -706,11 +719,9 @@ static void l2fwd(struct xsk_socket_info *xsk, struct pollfd *fds) static void l2fwd_all(void) { - struct pollfd fds[MAX_SOCKS]; + struct pollfd fds[MAX_SOCKS] = {}; int i, ret; - memset(fds, 0, sizeof(fds)); - for (i = 0; i < num_socks; i++) { fds[i].fd = xsk_socket__fd(xsks[i]->xsk); fds[i].events = POLLOUT | POLLIN; @@ -728,13 +739,66 @@ static void l2fwd_all(void) } } +static void load_xdp_program(char **argv, struct bpf_object **obj) +{ + struct bpf_prog_load_attr prog_load_attr = { + .prog_type = BPF_PROG_TYPE_XDP, + }; + char xdp_filename[256]; + int prog_fd; + + snprintf(xdp_filename, sizeof(xdp_filename), "%s_kern.o", argv[0]); + prog_load_attr.file = xdp_filename; + + if (bpf_prog_load_xattr(&prog_load_attr, obj, &prog_fd)) + exit(EXIT_FAILURE); + if (prog_fd < 0) { + fprintf(stderr, "ERROR: no program found: %s\n", + strerror(prog_fd)); + exit(EXIT_FAILURE); + } + + if (bpf_set_link_xdp_fd(opt_ifindex, prog_fd, opt_xdp_flags) < 0) { + fprintf(stderr, "ERROR: link set xdp fd failed\n"); + exit(EXIT_FAILURE); + } +} + +static void enter_xsks_into_map(struct bpf_object *obj) +{ + struct bpf_map *map; + int i, xsks_map; + + map = bpf_object__find_map_by_name(obj, "xsks_map"); + xsks_map = bpf_map__fd(map); + if (xsks_map < 0) { + fprintf(stderr, "ERROR: no xsks map found: %s\n", + strerror(xsks_map)); + exit(EXIT_FAILURE); + } + + for (i = 0; i < num_socks; i++) { + int fd = xsk_socket__fd(xsks[i]->xsk); + int key, ret; + + key = i; + ret = bpf_map_update_elem(xsks_map, &key, &fd, 0); + if (ret) { + fprintf(stderr, "ERROR: bpf_map_update_elem %d\n", i); + exit(EXIT_FAILURE); + } + } +} + int main(int argc, char **argv) { struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; + bool rx = false, tx = false; struct xsk_umem_info *umem; + struct bpf_object *obj; pthread_t pt; + int i, ret; void *bufs; - int ret; parse_command_line(argc, argv); @@ -744,6 +808,9 @@ int main(int argc, char **argv) exit(EXIT_FAILURE); } + if (opt_num_xsks > 1) + load_xdp_program(argv, &obj); + /* Reserve memory for the umem. Use hugepages if unaligned chunk mode */ bufs = mmap(NULL, NUM_FRAMES * opt_xsk_frame_size, PROT_READ | PROT_WRITE, @@ -752,16 +819,24 @@ int main(int argc, char **argv) printf("ERROR: mmap failed\n"); exit(EXIT_FAILURE); } - /* Create sockets... */ - umem = xsk_configure_umem(bufs, NUM_FRAMES * opt_xsk_frame_size); - xsks[num_socks++] = xsk_configure_socket(umem); - if (opt_bench == BENCH_TXONLY) { - int i; + /* Create sockets... */ + umem = xsk_configure_umem(bufs, NUM_FRAMES * opt_xsk_frame_size); + if (opt_bench == BENCH_RXDROP || opt_bench == BENCH_L2FWD) { + rx = true; + xsk_populate_fill_ring(umem); + } + if (opt_bench == BENCH_L2FWD || opt_bench == BENCH_TXONLY) + tx = true; + for (i = 0; i < opt_num_xsks; i++) + xsks[num_socks++] = xsk_configure_socket(umem, rx, tx); + if (opt_bench == BENCH_TXONLY) for (i = 0; i < NUM_FRAMES; i++) - (void)gen_eth_frame(umem, i * opt_xsk_frame_size); - } + gen_eth_frame(umem, i * opt_xsk_frame_size); + + if (opt_num_xsks > 1 && opt_bench != BENCH_TXONLY) + enter_xsks_into_map(obj); signal(SIGINT, int_exit); signal(SIGTERM, int_exit); diff --git a/samples/ftrace/Makefile b/samples/ftrace/Makefile new file mode 100644 index 000000000000..4ce896e10b2e --- /dev/null +++ b/samples/ftrace/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0-only + +obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace-direct.o +obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace-direct-too.o +obj-$(CONFIG_SAMPLE_FTRACE_DIRECT) += ftrace-direct-modify.o + +CFLAGS_sample-trace-array.o := -I$(src) +obj-$(CONFIG_SAMPLE_TRACE_ARRAY) += sample-trace-array.o diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c new file mode 100644 index 000000000000..e04229d21475 --- /dev/null +++ b/samples/ftrace/ftrace-direct-modify.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/module.h> +#include <linux/kthread.h> +#include <linux/ftrace.h> + +void my_direct_func1(void) +{ + trace_printk("my direct func1\n"); +} + +void my_direct_func2(void) +{ + trace_printk("my direct func2\n"); +} + +extern void my_tramp1(void *); +extern void my_tramp2(void *); + +static unsigned long my_ip = (unsigned long)schedule; + +asm ( +" .pushsection .text, \"ax\", @progbits\n" +" my_tramp1:" +" pushq %rbp\n" +" movq %rsp, %rbp\n" +" call my_direct_func1\n" +" leave\n" +" ret\n" +" my_tramp2:" +" pushq %rbp\n" +" movq %rsp, %rbp\n" +" call my_direct_func2\n" +" leave\n" +" ret\n" +" .popsection\n" +); + +static unsigned long my_tramp = (unsigned long)my_tramp1; +static unsigned long tramps[2] = { + (unsigned long)my_tramp1, + (unsigned long)my_tramp2, +}; + +static int simple_thread(void *arg) +{ + static int t; + int ret = 0; + + while (!kthread_should_stop()) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(2 * HZ); + + if (ret) + continue; + t ^= 1; + ret = modify_ftrace_direct(my_ip, my_tramp, tramps[t]); + if (!ret) + my_tramp = tramps[t]; + WARN_ON_ONCE(ret); + } + + return 0; +} + +static struct task_struct *simple_tsk; + +static int __init ftrace_direct_init(void) +{ + int ret; + + ret = register_ftrace_direct(my_ip, my_tramp); + if (!ret) + simple_tsk = kthread_run(simple_thread, NULL, "event-sample-fn"); + return ret; +} + +static void __exit ftrace_direct_exit(void) +{ + kthread_stop(simple_tsk); + unregister_ftrace_direct(my_ip, my_tramp); +} + +module_init(ftrace_direct_init); +module_exit(ftrace_direct_exit); + +MODULE_AUTHOR("Steven Rostedt"); +MODULE_DESCRIPTION("Example use case of using modify_ftrace_direct()"); +MODULE_LICENSE("GPL"); diff --git a/samples/ftrace/ftrace-direct-too.c b/samples/ftrace/ftrace-direct-too.c new file mode 100644 index 000000000000..27efa5f6ff52 --- /dev/null +++ b/samples/ftrace/ftrace-direct-too.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/module.h> + +#include <linux/mm.h> /* for handle_mm_fault() */ +#include <linux/ftrace.h> + +void my_direct_func(struct vm_area_struct *vma, + unsigned long address, unsigned int flags) +{ + trace_printk("handle mm fault vma=%p address=%lx flags=%x\n", + vma, address, flags); +} + +extern void my_tramp(void *); + +asm ( +" .pushsection .text, \"ax\", @progbits\n" +" my_tramp:" +" pushq %rbp\n" +" movq %rsp, %rbp\n" +" pushq %rdi\n" +" pushq %rsi\n" +" pushq %rdx\n" +" call my_direct_func\n" +" popq %rdx\n" +" popq %rsi\n" +" popq %rdi\n" +" leave\n" +" ret\n" +" .popsection\n" +); + + +static int __init ftrace_direct_init(void) +{ + return register_ftrace_direct((unsigned long)handle_mm_fault, + (unsigned long)my_tramp); +} + +static void __exit ftrace_direct_exit(void) +{ + unregister_ftrace_direct((unsigned long)handle_mm_fault, + (unsigned long)my_tramp); +} + +module_init(ftrace_direct_init); +module_exit(ftrace_direct_exit); + +MODULE_AUTHOR("Steven Rostedt"); +MODULE_DESCRIPTION("Another example use case of using register_ftrace_direct()"); +MODULE_LICENSE("GPL"); diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c new file mode 100644 index 000000000000..a2e3063bd306 --- /dev/null +++ b/samples/ftrace/ftrace-direct.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/module.h> + +#include <linux/sched.h> /* for wake_up_process() */ +#include <linux/ftrace.h> + +void my_direct_func(struct task_struct *p) +{ + trace_printk("waking up %s-%d\n", p->comm, p->pid); +} + +extern void my_tramp(void *); + +asm ( +" .pushsection .text, \"ax\", @progbits\n" +" my_tramp:" +" pushq %rbp\n" +" movq %rsp, %rbp\n" +" pushq %rdi\n" +" call my_direct_func\n" +" popq %rdi\n" +" leave\n" +" ret\n" +" .popsection\n" +); + + +static int __init ftrace_direct_init(void) +{ + return register_ftrace_direct((unsigned long)wake_up_process, + (unsigned long)my_tramp); +} + +static void __exit ftrace_direct_exit(void) +{ + unregister_ftrace_direct((unsigned long)wake_up_process, + (unsigned long)my_tramp); +} + +module_init(ftrace_direct_init); +module_exit(ftrace_direct_exit); + +MODULE_AUTHOR("Steven Rostedt"); +MODULE_DESCRIPTION("Example use case of using register_ftrace_direct()"); +MODULE_LICENSE("GPL"); diff --git a/samples/ftrace/sample-trace-array.c b/samples/ftrace/sample-trace-array.c new file mode 100644 index 000000000000..d523450d73eb --- /dev/null +++ b/samples/ftrace/sample-trace-array.c @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/module.h> +#include <linux/kthread.h> +#include <linux/trace.h> +#include <linux/trace_events.h> +#include <linux/timer.h> +#include <linux/err.h> +#include <linux/jiffies.h> + +/* + * Any file that uses trace points, must include the header. + * But only one file, must include the header by defining + * CREATE_TRACE_POINTS first. This will make the C code that + * creates the handles for the trace points. + */ +#define CREATE_TRACE_POINTS +#include "sample-trace-array.h" + +struct trace_array *tr; +static void mytimer_handler(struct timer_list *unused); +static struct task_struct *simple_tsk; + +/* + * mytimer: Timer setup to disable tracing for event "sample_event". This + * timer is only for the purposes of the sample module to demonstrate access of + * Ftrace instances from within kernel. + */ +static DEFINE_TIMER(mytimer, mytimer_handler); + +static void mytimer_handler(struct timer_list *unused) +{ + /* + * Disable tracing for event "sample_event". + */ + trace_array_set_clr_event(tr, "sample-subsystem", "sample_event", + false); +} + +static void simple_thread_func(int count) +{ + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + + /* + * Printing count value using trace_array_printk() - trace_printk() + * equivalent for the instance buffers. + */ + trace_array_printk(tr, _THIS_IP_, "trace_array_printk: count=%d\n", + count); + /* + * Tracepoint for event "sample_event". This will print the + * current value of count and current jiffies. + */ + trace_sample_event(count, jiffies); +} + +static int simple_thread(void *arg) +{ + int count = 0; + unsigned long delay = msecs_to_jiffies(5000); + + /* + * Enable tracing for "sample_event". + */ + trace_array_set_clr_event(tr, "sample-subsystem", "sample_event", true); + + /* + * Adding timer - mytimer. This timer will disable tracing after + * delay seconds. + * + */ + add_timer(&mytimer); + mod_timer(&mytimer, jiffies+delay); + + while (!kthread_should_stop()) + simple_thread_func(count++); + + del_timer(&mytimer); + + /* + * trace_array_put() decrements the reference counter associated with + * the trace array - "tr". We are done using the trace array, hence + * decrement the reference counter so that it can be destroyed using + * trace_array_destroy(). + */ + trace_array_put(tr); + + return 0; +} + +static int __init sample_trace_array_init(void) +{ + /* + * Return a pointer to the trace array with name "sample-instance" if it + * exists, else create a new trace array. + * + * NOTE: This function increments the reference counter + * associated with the trace array - "tr". + */ + tr = trace_array_get_by_name("sample-instance"); + + if (!tr) + return -1; + /* + * If context specific per-cpu buffers havent already been allocated. + */ + trace_printk_init_buffers(); + + simple_tsk = kthread_run(simple_thread, NULL, "sample-instance"); + if (IS_ERR(simple_tsk)) + return -1; + return 0; +} + +static void __exit sample_trace_array_exit(void) +{ + kthread_stop(simple_tsk); + + /* + * We are unloading our module and no longer require the trace array. + * Remove/destroy "tr" using trace_array_destroy() + */ + trace_array_destroy(tr); +} + +module_init(sample_trace_array_init); +module_exit(sample_trace_array_exit); + +MODULE_AUTHOR("Divya Indi"); +MODULE_DESCRIPTION("Sample module for kernel access to Ftrace instances"); +MODULE_LICENSE("GPL"); diff --git a/samples/ftrace/sample-trace-array.h b/samples/ftrace/sample-trace-array.h new file mode 100644 index 000000000000..6f8962428158 --- /dev/null +++ b/samples/ftrace/sample-trace-array.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +/* + * If TRACE_SYSTEM is defined, that will be the directory created + * in the ftrace directory under /sys/kernel/tracing/events/<system> + * + * The define_trace.h below will also look for a file name of + * TRACE_SYSTEM.h where TRACE_SYSTEM is what is defined here. + * In this case, it would look for sample-trace.h + * + * If the header name will be different than the system name + * (as in this case), then you can override the header name that + * define_trace.h will look up by defining TRACE_INCLUDE_FILE + * + * This file is called sample-trace-array.h but we want the system + * to be called "sample-subsystem". Therefore we must define the name of this + * file: + * + * #define TRACE_INCLUDE_FILE sample-trace-array + * + * As we do in the bottom of this file. + * + * Notice that TRACE_SYSTEM should be defined outside of #if + * protection, just like TRACE_INCLUDE_FILE. + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM sample-subsystem + +/* + * TRACE_SYSTEM is expected to be a C valid variable (alpha-numeric + * and underscore), although it may start with numbers. If for some + * reason it is not, you need to add the following lines: + */ +#undef TRACE_SYSTEM_VAR +#define TRACE_SYSTEM_VAR sample_subsystem + +/* + * But the above is only needed if TRACE_SYSTEM is not alpha-numeric + * and underscored. By default, TRACE_SYSTEM_VAR will be equal to + * TRACE_SYSTEM. As TRACE_SYSTEM_VAR must be alpha-numeric, if + * TRACE_SYSTEM is not, then TRACE_SYSTEM_VAR must be defined with + * only alpha-numeric and underscores. + * + * The TRACE_SYSTEM_VAR is only used internally and not visible to + * user space. + */ + +/* + * Notice that this file is not protected like a normal header. + * We also must allow for rereading of this file. The + * + * || defined(TRACE_HEADER_MULTI_READ) + * + * serves this purpose. + */ +#if !defined(_SAMPLE_TRACE_ARRAY_H) || defined(TRACE_HEADER_MULTI_READ) +#define _SAMPLE_TRACE_ARRAY_H + +#include <linux/tracepoint.h> +TRACE_EVENT(sample_event, + + TP_PROTO(int count, unsigned long time), + + TP_ARGS(count, time), + + TP_STRUCT__entry( + __field(int, count) + __field(unsigned long, time) + ), + + TP_fast_assign( + __entry->count = count; + __entry->time = time; + ), + + TP_printk("count value=%d at jiffies=%lu", __entry->count, + __entry->time) + ); +#endif + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE sample-trace-array +#include <trace/define_trace.h> diff --git a/samples/mei/Makefile b/samples/mei/Makefile index c7e52e9e92ca..27f37efdadb4 100644 --- a/samples/mei/Makefile +++ b/samples/mei/Makefile @@ -1,10 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 -CC := $(CROSS_COMPILE)gcc -CFLAGS := -I../../usr/include +# Copyright (c) 2012-2019, Intel Corporation. All rights reserved. -PROGS := mei-amt-version +hostprogs-y := mei-amt-version -all: $(PROGS) +HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include -clean: - rm -fr $(PROGS) +always := $(hostprogs-y) + +all: mei-amt-version diff --git a/samples/pktgen/README.rst b/samples/pktgen/README.rst index fd39215db508..3f6483e8b2df 100644 --- a/samples/pktgen/README.rst +++ b/samples/pktgen/README.rst @@ -18,7 +18,7 @@ across the sample scripts. Usage example is printed on errors:: Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX -i : ($DEV) output interface/device (required) -s : ($PKT_SIZE) packet size - -d : ($DEST_IP) destination IP + -d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed -m : ($DST_MAC) destination MAC-addr -p : ($DST_PORT) destination PORT range (e.g. 433-444) is also allowed -t : ($THREADS) threads to start diff --git a/samples/pktgen/functions.sh b/samples/pktgen/functions.sh index 4af4046d71be..dae06d5b38fa 100644 --- a/samples/pktgen/functions.sh +++ b/samples/pktgen/functions.sh @@ -5,6 +5,8 @@ # Author: Jesper Dangaaard Brouer # License: GPL +set -o errexit + ## -- General shell logging cmds -- function err() { local exitcode=$1 @@ -58,6 +60,7 @@ function pg_set() { function proc_cmd() { local result local proc_file=$1 + local status=0 # after shift, the remaining args are contained in $@ shift local proc_ctrl=${PROC_DIR}/$proc_file @@ -73,13 +76,13 @@ function proc_cmd() { echo "cmd: $@ > $proc_ctrl" fi # Quoting of "$@" is important for space expansion - echo "$@" > "$proc_ctrl" - local status=$? + echo "$@" > "$proc_ctrl" || status=$? - result=$(grep "Result: OK:" $proc_ctrl) - # Due to pgctrl, cannot use exit code $? from grep - if [[ "$result" == "" ]]; then - grep "Result:" $proc_ctrl >&2 + if [[ "$proc_file" != "pgctrl" ]]; then + result=$(grep "Result: OK:" $proc_ctrl) || true + if [[ "$result" == "" ]]; then + grep "Result:" $proc_ctrl >&2 + fi fi if (( $status != 0 )); then err 5 "Write error($status) occurred cmd: \"$@ > $proc_ctrl\"" @@ -105,6 +108,8 @@ function pgset() { fi } +[[ $EUID -eq 0 ]] && trap 'pg_ctrl "reset"' EXIT + ## -- General shell tricks -- function root_check_run_with_sudo() { @@ -163,6 +168,137 @@ function get_node_cpus() echo $node_cpu_list } +# Check $1 is in between $2, $3 ($2 <= $1 <= $3) +function in_between() { [[ ($1 -ge $2) && ($1 -le $3) ]] ; } + +# Extend shrunken IPv6 address. +# fe80::42:bcff:fe84:e10a => fe80:0:0:0:42:bcff:fe84:e10a +function extend_addr6() +{ + local addr=$1 + local sep=: sep2=:: + local sep_cnt=$(tr -cd $sep <<< $1 | wc -c) + local shrink + + # separator count should be (2 <= $sep_cnt <= 7) + if ! (in_between $sep_cnt 2 7); then + err 5 "Invalid IP6 address: $1" + fi + + # if shrink '::' occurs multiple, it's malformed. + shrink=( $(egrep -o "$sep{2,}" <<< $addr) ) + if [[ ${#shrink[@]} -ne 0 ]]; then + if [[ ${#shrink[@]} -gt 1 || ( ${shrink[0]} != $sep2 ) ]]; then + err 5 "Invalid IP6 address: $1" + fi + fi + + # add 0 at begin & end, and extend addr by adding :0 + [[ ${addr:0:1} == $sep ]] && addr=0${addr} + [[ ${addr: -1} == $sep ]] && addr=${addr}0 + echo "${addr/$sep2/$(printf ':0%.s' $(seq $[8-sep_cnt])):}" +} + +# Given a single IP(v4/v6) address, whether it is valid. +function validate_addr() +{ + # check function is called with (funcname)6 + [[ ${FUNCNAME[1]: -1} == 6 ]] && local IP6=6 + local bitlen=$[ IP6 ? 128 : 32 ] + local len=$[ IP6 ? 8 : 4 ] + local max=$[ 2**(len*2)-1 ] + local net prefix + local addr sep + + IFS='/' read net prefix <<< $1 + [[ $IP6 ]] && net=$(extend_addr6 $net) + + # if prefix exists, check (0 <= $prefix <= $bitlen) + if [[ -n $prefix ]]; then + if ! (in_between $prefix 0 $bitlen); then + err 5 "Invalid prefix: /$prefix" + fi + fi + + # set separator for each IP(v4/v6) + [[ $IP6 ]] && sep=: || sep=. + IFS=$sep read -a addr <<< $net + + # array length + if [[ ${#addr[@]} != $len ]]; then + err 5 "Invalid IP$IP6 address: $1" + fi + + # check each digit (0 <= $digit <= $max) + for digit in "${addr[@]}"; do + [[ $IP6 ]] && digit=$[ 16#$digit ] + if ! (in_between $digit 0 $max); then + err 5 "Invalid IP$IP6 address: $1" + fi + done + + return 0 +} + +function validate_addr6() { validate_addr $@ ; } + +# Given a single IP(v4/v6) or CIDR, return minimum and maximum IP addr. +function parse_addr() +{ + # check function is called with (funcname)6 + [[ ${FUNCNAME[1]: -1} == 6 ]] && local IP6=6 + local net prefix + local min_ip max_ip + + IFS='/' read net prefix <<< $1 + [[ $IP6 ]] && net=$(extend_addr6 $net) + + if [[ -z $prefix ]]; then + min_ip=$net + max_ip=$net + else + # defining array for converting Decimal 2 Binary + # 00000000 00000001 00000010 00000011 00000100 ... + local d2b='{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}{0..1}' + [[ $IP6 ]] && d2b+=$d2b + eval local D2B=($d2b) + + local bitlen=$[ IP6 ? 128 : 32 ] + local remain=$[ bitlen-prefix ] + local octet=$[ IP6 ? 16 : 8 ] + local min_mask max_mask + local min max + local ip_bit + local ip sep + + # set separator for each IP(v4/v6) + [[ $IP6 ]] && sep=: || sep=. + IFS=$sep read -ra ip <<< $net + + min_mask="$(printf '1%.s' $(seq $prefix))$(printf '0%.s' $(seq $remain))" + max_mask="$(printf '0%.s' $(seq $prefix))$(printf '1%.s' $(seq $remain))" + + # calculate min/max ip with &,| operator + for i in "${!ip[@]}"; do + digit=$[ IP6 ? 16#${ip[$i]} : ${ip[$i]} ] + ip_bit=${D2B[$digit]} + + idx=$[ octet*i ] + min[$i]=$[ 2#$ip_bit & 2#${min_mask:$idx:$octet} ] + max[$i]=$[ 2#$ip_bit | 2#${max_mask:$idx:$octet} ] + [[ $IP6 ]] && { min[$i]=$(printf '%X' ${min[$i]}); + max[$i]=$(printf '%X' ${max[$i]}); } + done + + min_ip=$(IFS=$sep; echo "${min[*]}") + max_ip=$(IFS=$sep; echo "${max[*]}") + fi + + echo $min_ip $max_ip +} + +function parse_addr6() { parse_addr $@ ; } + # Given a single or range of port(s), return minimum and maximum port number. function parse_ports() { @@ -185,9 +321,9 @@ function validate_ports() local min_port=$1 local max_port=$2 - # 0 < port < 65536 - if [[ $min_port -gt 0 && $min_port -lt 65536 ]]; then - if [[ $max_port -gt 0 && $max_port -lt 65536 ]]; then + # 1 <= port <= 65535 + if (in_between $min_port 1 65535); then + if (in_between $max_port 1 65535); then if [[ $min_port -le $max_port ]]; then return 0 fi diff --git a/samples/pktgen/parameters.sh b/samples/pktgen/parameters.sh index a06b00a0c7b6..ff0ed474fee9 100644 --- a/samples/pktgen/parameters.sh +++ b/samples/pktgen/parameters.sh @@ -8,7 +8,7 @@ function usage() { echo "Usage: $0 [-vx] -i ethX" echo " -i : (\$DEV) output interface/device (required)" echo " -s : (\$PKT_SIZE) packet size" - echo " -d : (\$DEST_IP) destination IP" + echo " -d : (\$DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed" echo " -m : (\$DST_MAC) destination MAC-addr" echo " -p : (\$DST_PORT) destination PORT range (e.g. 433-444) is also allowed" echo " -t : (\$THREADS) threads to start" diff --git a/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh b/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh index e14b1a9144d9..1b6204125d2d 100755 --- a/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh +++ b/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh @@ -41,9 +41,13 @@ fi [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" [ -z "$BURST" ] && BURST=1024 [ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # Base Config @@ -71,13 +75,14 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst$IP6 $DEST_IP" + pg_set $dev "dst${IP6}_min $DST_MIN" + pg_set $dev "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Inject packet into RX path of stack diff --git a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh index 82c3e504e056..e607cb369b20 100755 --- a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh +++ b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh @@ -24,9 +24,13 @@ if [[ -n "$BURST" ]]; then err 1 "Bursting not supported for this mode" fi [ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # Base Config @@ -54,13 +58,14 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst$IP6 $DEST_IP" + pg_set $dev "dst${IP6}_min $DST_MIN" + pg_set $dev "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Inject packet into TX qdisc egress path of stack diff --git a/samples/pktgen/pktgen_sample01_simple.sh b/samples/pktgen/pktgen_sample01_simple.sh index d1702fdde8f3..a4e250b45dce 100755 --- a/samples/pktgen/pktgen_sample01_simple.sh +++ b/samples/pktgen/pktgen_sample01_simple.sh @@ -22,17 +22,21 @@ fi # Example enforce param "-m" for dst_mac [ -z "$DST_MAC" ] && usage && err 2 "Must specify -m dst_mac" [ -z "$COUNT" ] && COUNT="100000" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # Base Config DELAY="0" # Zero means max speed # Flow variation random source port between min and max -UDP_MIN=9 -UDP_MAX=109 +UDP_SRC_MIN=9 +UDP_SRC_MAX=109 # General cleanup everything since last run # (especially important if other threads were configured by other scripts) @@ -61,19 +65,20 @@ pg_set $DEV "flag NO_TIMESTAMP" # Destination pg_set $DEV "dst_mac $DST_MAC" -pg_set $DEV "dst$IP6 $DEST_IP" +pg_set $DEV "dst${IP6}_min $DST_MIN" +pg_set $DEV "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $DEV "flag UDPDST_RND" - pg_set $DEV "udp_dst_min $DST_MIN" - pg_set $DEV "udp_dst_max $DST_MAX" + pg_set $DEV "udp_dst_min $UDP_DST_MIN" + pg_set $DEV "udp_dst_max $UDP_DST_MAX" fi # Setup random UDP port src range pg_set $DEV "flag UDPSRC_RND" -pg_set $DEV "udp_src_min $UDP_MIN" -pg_set $DEV "udp_src_max $UDP_MAX" +pg_set $DEV "udp_src_min $UDP_SRC_MIN" +pg_set $DEV "udp_src_max $UDP_SRC_MAX" # start_run echo "Running... ctrl^C to stop" >&2 diff --git a/samples/pktgen/pktgen_sample02_multiqueue.sh b/samples/pktgen/pktgen_sample02_multiqueue.sh index 7f7a9a27548f..cb2495fcdc60 100755 --- a/samples/pktgen/pktgen_sample02_multiqueue.sh +++ b/samples/pktgen/pktgen_sample02_multiqueue.sh @@ -21,17 +21,21 @@ DELAY="0" # Zero means max speed [ -z "$CLONE_SKB" ] && CLONE_SKB="0" # Flow variation random source port between min and max -UDP_MIN=9 -UDP_MAX=109 +UDP_SRC_MIN=9 +UDP_SRC_MAX=109 # (example of setting default params in your script) if [ -z "$DEST_IP" ]; then [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" fi [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # General cleanup everything since last run @@ -62,19 +66,20 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst$IP6 $DEST_IP" + pg_set $dev "dst${IP6}_min $DST_MIN" + pg_set $dev "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Setup random UDP port src range pg_set $dev "flag UDPSRC_RND" - pg_set $dev "udp_src_min $UDP_MIN" - pg_set $dev "udp_src_max $UDP_MAX" + pg_set $dev "udp_src_min $UDP_SRC_MIN" + pg_set $dev "udp_src_max $UDP_SRC_MAX" done # start_run diff --git a/samples/pktgen/pktgen_sample03_burst_single_flow.sh b/samples/pktgen/pktgen_sample03_burst_single_flow.sh index b520637817ce..fff50765a5aa 100755 --- a/samples/pktgen/pktgen_sample03_burst_single_flow.sh +++ b/samples/pktgen/pktgen_sample03_burst_single_flow.sh @@ -33,9 +33,13 @@ fi [ -z "$BURST" ] && BURST=32 [ -z "$CLONE_SKB" ] && CLONE_SKB="0" # No need for clones when bursting [ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # Base Config @@ -62,13 +66,14 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst$IP6 $DEST_IP" + pg_set $dev "dst${IP6}_min $DST_MIN" + pg_set $dev "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Setup burst, for easy testing -b 0 disable bursting diff --git a/samples/pktgen/pktgen_sample04_many_flows.sh b/samples/pktgen/pktgen_sample04_many_flows.sh index 5b6e9d9cb5b5..2cd6b701400d 100755 --- a/samples/pktgen/pktgen_sample04_many_flows.sh +++ b/samples/pktgen/pktgen_sample04_many_flows.sh @@ -17,9 +17,13 @@ source ${basedir}/parameters.sh [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" [ -z "$CLONE_SKB" ] && CLONE_SKB="0" [ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # NOTICE: Script specific settings @@ -37,6 +41,9 @@ if [[ -n "$BURST" ]]; then err 1 "Bursting not supported for this mode" fi +# 198.18.0.0 / 198.19.255.255 +read -r SRC_MIN SRC_MAX <<< $(parse_addr 198.18.0.0/15) + # General cleanup everything since last run pg_ctrl "reset" @@ -58,19 +65,20 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Single destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst $DEST_IP" + pg_set $dev "dst_min $DST_MIN" + pg_set $dev "dst_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Randomize source IP-addresses pg_set $dev "flag IPSRC_RND" - pg_set $dev "src_min 198.18.0.0" - pg_set $dev "src_max 198.19.255.255" + pg_set $dev "src_min $SRC_MIN" + pg_set $dev "src_max $SRC_MAX" # Limit number of flows (max 65535) pg_set $dev "flows $FLOWS" diff --git a/samples/pktgen/pktgen_sample05_flow_per_thread.sh b/samples/pktgen/pktgen_sample05_flow_per_thread.sh index 0c06e63fbe97..4cb6252ade39 100755 --- a/samples/pktgen/pktgen_sample05_flow_per_thread.sh +++ b/samples/pktgen/pktgen_sample05_flow_per_thread.sh @@ -22,9 +22,13 @@ source ${basedir}/parameters.sh [ -z "$CLONE_SKB" ] && CLONE_SKB="0" [ -z "$BURST" ] && BURST=32 [ -z "$COUNT" ] && COUNT="0" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # Base Config @@ -51,13 +55,14 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Single destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst $DEST_IP" + pg_set $dev "dst_min $DST_MIN" + pg_set $dev "dst_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Setup source IP-addresses based on thread number diff --git a/samples/pktgen/pktgen_sample06_numa_awared_queue_irq_affinity.sh b/samples/pktgen/pktgen_sample06_numa_awared_queue_irq_affinity.sh index 97f0266c0356..728106060a02 100755 --- a/samples/pktgen/pktgen_sample06_numa_awared_queue_irq_affinity.sh +++ b/samples/pktgen/pktgen_sample06_numa_awared_queue_irq_affinity.sh @@ -20,8 +20,8 @@ DELAY="0" # Zero means max speed [ -z "$CLONE_SKB" ] && CLONE_SKB="0" # Flow variation random source port between min and max -UDP_MIN=9 -UDP_MAX=109 +UDP_SRC_MIN=9 +UDP_SRC_MAX=109 node=`get_iface_node $DEV` irq_array=(`get_iface_irqs $DEV`) @@ -35,9 +35,13 @@ if [ -z "$DEST_IP" ]; then [ -z "$IP6" ] && DEST_IP="198.18.0.42" || DEST_IP="FD00::1" fi [ -z "$DST_MAC" ] && DST_MAC="90:e2:ba:ff:ff:ff" +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then - read -r DST_MIN DST_MAX <<< $(parse_ports $DST_PORT) - validate_ports $DST_MIN $DST_MAX + read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) + validate_ports $UDP_DST_MIN $UDP_DST_MAX fi # General cleanup everything since last run @@ -79,19 +83,20 @@ for ((i = 0; i < $THREADS; i++)); do # Destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst$IP6 $DEST_IP" + pg_set $dev "dst${IP6}_min $DST_MIN" + pg_set $dev "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range pg_set $dev "flag UDPDST_RND" - pg_set $dev "udp_dst_min $DST_MIN" - pg_set $dev "udp_dst_max $DST_MAX" + pg_set $dev "udp_dst_min $UDP_DST_MIN" + pg_set $dev "udp_dst_max $UDP_DST_MAX" fi # Setup random UDP port src range pg_set $dev "flag UDPSRC_RND" - pg_set $dev "udp_src_min $UDP_MIN" - pg_set $dev "udp_src_max $UDP_MAX" + pg_set $dev "udp_src_min $UDP_SRC_MIN" + pg_set $dev "udp_src_max $UDP_SRC_MAX" done # start_run diff --git a/samples/seccomp/user-trap.c b/samples/seccomp/user-trap.c index 6d0125ca8af7..20291ec6489f 100644 --- a/samples/seccomp/user-trap.c +++ b/samples/seccomp/user-trap.c @@ -298,14 +298,14 @@ int main(void) req = malloc(sizes.seccomp_notif); if (!req) goto out_close; - memset(req, 0, sizeof(*req)); resp = malloc(sizes.seccomp_notif_resp); if (!resp) goto out_req; - memset(resp, 0, sizeof(*resp)); + memset(resp, 0, sizes.seccomp_notif_resp); while (1) { + memset(req, 0, sizes.seccomp_notif); if (ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, req)) { perror("ioctl recv"); goto out_resp; diff --git a/samples/trace_printk/trace-printk.c b/samples/trace_printk/trace-printk.c index 7affc3b50b61..cfc159580263 100644 --- a/samples/trace_printk/trace-printk.c +++ b/samples/trace_printk/trace-printk.c @@ -36,6 +36,7 @@ static int __init trace_printk_init(void) /* Kick off printing in irq context */ irq_work_queue(&irqwork); + irq_work_sync(&irqwork); trace_printk("This is a %s that will use trace_bprintk()\n", "static string"); |