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-rw-r--r--samples/bpf/Makefile10
-rw-r--r--samples/bpf/fds_example.c3
-rw-r--r--samples/bpf/sock_example.c3
-rw-r--r--samples/bpf/test_cgrp2_attach.c3
-rw-r--r--samples/bpf/test_lru_dist.c2
-rw-r--r--samples/bpf/test_map_in_map_user.c4
-rw-r--r--samples/bpf/tracex5_user.c3
-rw-r--r--samples/bpf/xdp_redirect_map.bpf.c6
-rw-r--r--samples/bpf/xdp_redirect_map_user.c9
9 files changed, 29 insertions, 14 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 5002a5b9a7da..727da3c5879b 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -282,12 +282,10 @@ $(LIBBPF): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OU
BPFTOOLDIR := $(TOOLS_PATH)/bpf/bpftool
BPFTOOL_OUTPUT := $(abspath $(BPF_SAMPLES_PATH))/bpftool
-BPFTOOL := $(BPFTOOL_OUTPUT)/bpftool
-$(BPFTOOL): $(LIBBPF) $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT)
- $(MAKE) -C $(BPFTOOLDIR) srctree=$(BPF_SAMPLES_PATH)/../../ \
- OUTPUT=$(BPFTOOL_OUTPUT)/ \
- LIBBPF_OUTPUT=$(LIBBPF_OUTPUT)/ \
- LIBBPF_DESTDIR=$(LIBBPF_DESTDIR)/
+BPFTOOL := $(BPFTOOL_OUTPUT)/bootstrap/bpftool
+$(BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT)
+ $(MAKE) -C $(BPFTOOLDIR) srctree=$(BPF_SAMPLES_PATH)/../../ \
+ OUTPUT=$(BPFTOOL_OUTPUT)/ bootstrap
$(LIBBPF_OUTPUT) $(BPFTOOL_OUTPUT):
$(call msg,MKDIR,$@)
diff --git a/samples/bpf/fds_example.c b/samples/bpf/fds_example.c
index 16dbf49e0f19..88a26f3ce201 100644
--- a/samples/bpf/fds_example.c
+++ b/samples/bpf/fds_example.c
@@ -17,6 +17,7 @@
#include <bpf/libbpf.h>
#include "bpf_insn.h"
#include "sock_example.h"
+#include "bpf_util.h"
#define BPF_F_PIN (1 << 0)
#define BPF_F_GET (1 << 1)
@@ -52,7 +53,7 @@ static int bpf_prog_create(const char *object)
BPF_MOV64_IMM(BPF_REG_0, 1),
BPF_EXIT_INSN(),
};
- size_t insns_cnt = sizeof(insns) / sizeof(struct bpf_insn);
+ size_t insns_cnt = ARRAY_SIZE(insns);
struct bpf_object *obj;
int err;
diff --git a/samples/bpf/sock_example.c b/samples/bpf/sock_example.c
index a88f69504c08..5b66f2401b96 100644
--- a/samples/bpf/sock_example.c
+++ b/samples/bpf/sock_example.c
@@ -29,6 +29,7 @@
#include <bpf/bpf.h>
#include "bpf_insn.h"
#include "sock_example.h"
+#include "bpf_util.h"
char bpf_log_buf[BPF_LOG_BUF_SIZE];
@@ -58,7 +59,7 @@ static int test_sock(void)
BPF_MOV64_IMM(BPF_REG_0, 0), /* r0 = 0 */
BPF_EXIT_INSN(),
};
- size_t insns_cnt = sizeof(prog) / sizeof(struct bpf_insn);
+ size_t insns_cnt = ARRAY_SIZE(prog);
LIBBPF_OPTS(bpf_prog_load_opts, opts,
.log_buf = bpf_log_buf,
.log_size = BPF_LOG_BUF_SIZE,
diff --git a/samples/bpf/test_cgrp2_attach.c b/samples/bpf/test_cgrp2_attach.c
index 6d90874b09c3..68ce69457afe 100644
--- a/samples/bpf/test_cgrp2_attach.c
+++ b/samples/bpf/test_cgrp2_attach.c
@@ -31,6 +31,7 @@
#include <bpf/bpf.h>
#include "bpf_insn.h"
+#include "bpf_util.h"
enum {
MAP_KEY_PACKETS,
@@ -70,7 +71,7 @@ static int prog_load(int map_fd, int verdict)
BPF_MOV64_IMM(BPF_REG_0, verdict), /* r0 = verdict */
BPF_EXIT_INSN(),
};
- size_t insns_cnt = sizeof(prog) / sizeof(struct bpf_insn);
+ size_t insns_cnt = ARRAY_SIZE(prog);
LIBBPF_OPTS(bpf_prog_load_opts, opts,
.log_buf = bpf_log_buf,
.log_size = BPF_LOG_BUF_SIZE,
diff --git a/samples/bpf/test_lru_dist.c b/samples/bpf/test_lru_dist.c
index be98ccb4952f..5efb91763d65 100644
--- a/samples/bpf/test_lru_dist.c
+++ b/samples/bpf/test_lru_dist.c
@@ -523,7 +523,7 @@ int main(int argc, char **argv)
return -1;
}
- for (f = 0; f < sizeof(map_flags) / sizeof(*map_flags); f++) {
+ for (f = 0; f < ARRAY_SIZE(map_flags); f++) {
test_lru_loss0(BPF_MAP_TYPE_LRU_HASH, map_flags[f]);
test_lru_loss1(BPF_MAP_TYPE_LRU_HASH, map_flags[f]);
test_parallel_lru_loss(BPF_MAP_TYPE_LRU_HASH, map_flags[f],
diff --git a/samples/bpf/test_map_in_map_user.c b/samples/bpf/test_map_in_map_user.c
index e8b4cc184ac9..652ec720533d 100644
--- a/samples/bpf/test_map_in_map_user.c
+++ b/samples/bpf/test_map_in_map_user.c
@@ -12,6 +12,8 @@
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
+#include "bpf_util.h"
+
static int map_fd[7];
#define PORT_A (map_fd[0])
@@ -28,7 +30,7 @@ static const char * const test_names[] = {
"Hash of Hash",
};
-#define NR_TESTS (sizeof(test_names) / sizeof(*test_names))
+#define NR_TESTS ARRAY_SIZE(test_names)
static void check_map_id(int inner_map_fd, int map_in_map_fd, uint32_t key)
{
diff --git a/samples/bpf/tracex5_user.c b/samples/bpf/tracex5_user.c
index e910dc265c31..9d7d79f0d47d 100644
--- a/samples/bpf/tracex5_user.c
+++ b/samples/bpf/tracex5_user.c
@@ -8,6 +8,7 @@
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include "trace_helpers.h"
+#include "bpf_util.h"
#ifdef __mips__
#define MAX_ENTRIES 6000 /* MIPS n64 syscalls start at 5000 */
@@ -24,7 +25,7 @@ static void install_accept_all_seccomp(void)
BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW),
};
struct sock_fprog prog = {
- .len = (unsigned short)(sizeof(filter)/sizeof(filter[0])),
+ .len = (unsigned short)ARRAY_SIZE(filter),
.filter = filter,
};
if (prctl(PR_SET_SECCOMP, 2, &prog))
diff --git a/samples/bpf/xdp_redirect_map.bpf.c b/samples/bpf/xdp_redirect_map.bpf.c
index 415bac1758e3..8557c278df77 100644
--- a/samples/bpf/xdp_redirect_map.bpf.c
+++ b/samples/bpf/xdp_redirect_map.bpf.c
@@ -33,7 +33,7 @@ struct {
} tx_port_native SEC(".maps");
/* store egress interface mac address */
-const volatile char tx_mac_addr[ETH_ALEN];
+const volatile __u8 tx_mac_addr[ETH_ALEN];
static __always_inline int xdp_redirect_map(struct xdp_md *ctx, void *redirect_map)
{
@@ -73,6 +73,7 @@ int xdp_redirect_map_egress(struct xdp_md *ctx)
{
void *data_end = (void *)(long)ctx->data_end;
void *data = (void *)(long)ctx->data;
+ u8 *mac_addr = (u8 *) tx_mac_addr;
struct ethhdr *eth = data;
u64 nh_off;
@@ -80,7 +81,8 @@ int xdp_redirect_map_egress(struct xdp_md *ctx)
if (data + nh_off > data_end)
return XDP_DROP;
- __builtin_memcpy(eth->h_source, (const char *)tx_mac_addr, ETH_ALEN);
+ barrier_var(mac_addr); /* prevent optimizing out memcpy */
+ __builtin_memcpy(eth->h_source, mac_addr, ETH_ALEN);
return XDP_PASS;
}
diff --git a/samples/bpf/xdp_redirect_map_user.c b/samples/bpf/xdp_redirect_map_user.c
index b6e4fc849577..c889a1394dc1 100644
--- a/samples/bpf/xdp_redirect_map_user.c
+++ b/samples/bpf/xdp_redirect_map_user.c
@@ -40,6 +40,8 @@ static const struct option long_options[] = {
{}
};
+static int verbose = 0;
+
int main(int argc, char **argv)
{
struct bpf_devmap_val devmap_val = {};
@@ -79,6 +81,7 @@ int main(int argc, char **argv)
break;
case 'v':
sample_switch_mode();
+ verbose = 1;
break;
case 's':
mask |= SAMPLE_REDIRECT_MAP_CNT;
@@ -134,6 +137,12 @@ int main(int argc, char **argv)
ret = EXIT_FAIL;
goto end_destroy;
}
+ if (verbose)
+ printf("Egress ifindex:%d using src MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
+ ifindex_out,
+ skel->rodata->tx_mac_addr[0], skel->rodata->tx_mac_addr[1],
+ skel->rodata->tx_mac_addr[2], skel->rodata->tx_mac_addr[3],
+ skel->rodata->tx_mac_addr[4], skel->rodata->tx_mac_addr[5]);
}
skel->rodata->from_match[0] = ifindex_in;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 13:05:06 +0000