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-rw-r--r--tools/testing/selftests/bpf/Makefile33
-rw-r--r--tools/testing/selftests/bpf/bpf_helpers.h2
-rw-r--r--tools/testing/selftests/bpf/prog_tests/map_lock.c2
-rw-r--r--tools/testing/selftests/bpf/prog_tests/signal_pending.c2
-rw-r--r--tools/testing/selftests/bpf/prog_tests/spinlock.c2
-rw-r--r--tools/testing/selftests/bpf/progs/test_sock_fields_kern.c88
-rw-r--r--tools/testing/selftests/bpf/test_btf.c44
-rwxr-xr-xtools/testing/selftests/bpf/test_lwt_ip_encap.sh54
-rw-r--r--tools/testing/selftests/bpf/test_sock_fields.c134
-rw-r--r--tools/testing/selftests/bpf/verifier/calls.c25
-rw-r--r--tools/testing/selftests/bpf/verifier/ld_imm64.c15
-rw-r--r--tools/testing/selftests/bpf/verifier/ref_tracking.c168
-rw-r--r--tools/testing/selftests/bpf/verifier/sock.c4
13 files changed, 511 insertions, 62 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 518cd587cd63..2aed37ea61a4 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -153,6 +153,9 @@ endif
endif
endif
+TEST_PROGS_CFLAGS := -I. -I$(OUTPUT)
+TEST_VERIFIER_CFLAGS := -I. -I$(OUTPUT) -Iverifier
+
ifneq ($(SUBREG_CODEGEN),)
ALU32_BUILD_DIR = $(OUTPUT)/alu32
TEST_CUSTOM_PROGS += $(ALU32_BUILD_DIR)/test_progs_32
@@ -162,13 +165,15 @@ $(ALU32_BUILD_DIR):
$(ALU32_BUILD_DIR)/urandom_read: $(OUTPUT)/urandom_read
cp $< $@
-$(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(ALU32_BUILD_DIR) \
+$(ALU32_BUILD_DIR)/test_progs_32: test_progs.c $(OUTPUT)/libbpf.a\
+ $(ALU32_BUILD_DIR) \
$(ALU32_BUILD_DIR)/urandom_read
- $(CC) $(CFLAGS) -o $(ALU32_BUILD_DIR)/test_progs_32 $< \
- trace_helpers.c prog_tests/*.c $(OUTPUT)/libbpf.a $(LDLIBS)
+ $(CC) $(TEST_PROGS_CFLAGS) $(CFLAGS) \
+ -o $(ALU32_BUILD_DIR)/test_progs_32 \
+ test_progs.c trace_helpers.c prog_tests/*.c \
+ $(OUTPUT)/libbpf.a $(LDLIBS)
$(ALU32_BUILD_DIR)/test_progs_32: $(PROG_TESTS_H)
-$(ALU32_BUILD_DIR)/test_progs_32: CFLAGS += -I$(OUTPUT)
$(ALU32_BUILD_DIR)/test_progs_32: prog_tests/*.c
$(ALU32_BUILD_DIR)/%.o: progs/%.c $(ALU32_BUILD_DIR) \
@@ -202,12 +207,16 @@ endif
PROG_TESTS_H := $(OUTPUT)/prog_tests/tests.h
$(OUTPUT)/test_progs: $(PROG_TESTS_H)
-$(OUTPUT)/test_progs: CFLAGS += -I$(OUTPUT)
+$(OUTPUT)/test_progs: CFLAGS += $(TEST_PROGS_CFLAGS)
$(OUTPUT)/test_progs: prog_tests/*.c
+PROG_TESTS_DIR = $(OUTPUT)/prog_tests
+$(PROG_TESTS_DIR):
+ mkdir -p $@
+
PROG_TESTS_FILES := $(wildcard prog_tests/*.c)
-$(PROG_TESTS_H): $(PROG_TESTS_FILES)
- $(shell ( cd prog_tests/
+$(PROG_TESTS_H): $(PROG_TESTS_DIR) $(PROG_TESTS_FILES)
+ $(shell ( cd prog_tests/; \
echo '/* Generated header, do not edit */'; \
echo '#ifdef DECLARE'; \
ls *.c 2> /dev/null | \
@@ -221,11 +230,15 @@ $(PROG_TESTS_H): $(PROG_TESTS_FILES)
VERIFIER_TESTS_H := $(OUTPUT)/verifier/tests.h
$(OUTPUT)/test_verifier: $(VERIFIER_TESTS_H)
-$(OUTPUT)/test_verifier: CFLAGS += -I$(OUTPUT)
+$(OUTPUT)/test_verifier: CFLAGS += $(TEST_VERIFIER_CFLAGS)
+
+VERIFIER_TESTS_DIR = $(OUTPUT)/verifier
+$(VERIFIER_TESTS_DIR):
+ mkdir -p $@
VERIFIER_TEST_FILES := $(wildcard verifier/*.c)
-$(OUTPUT)/verifier/tests.h: $(VERIFIER_TEST_FILES)
- $(shell ( cd verifier/
+$(OUTPUT)/verifier/tests.h: $(VERIFIER_TESTS_DIR) $(VERIFIER_TEST_FILES)
+ $(shell ( cd verifier/; \
echo '/* Generated header, do not edit */'; \
echo '#ifdef FILL_ARRAY'; \
ls *.c 2> /dev/null | \
diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index c9433a496d54..c81fc350f7ad 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -180,6 +180,8 @@ static struct bpf_sock *(*bpf_sk_fullsock)(struct bpf_sock *sk) =
(void *) BPF_FUNC_sk_fullsock;
static struct bpf_tcp_sock *(*bpf_tcp_sock)(struct bpf_sock *sk) =
(void *) BPF_FUNC_tcp_sock;
+static struct bpf_sock *(*bpf_get_listener_sock)(struct bpf_sock *sk) =
+ (void *) BPF_FUNC_get_listener_sock;
static int (*bpf_skb_ecn_set_ce)(void *ctx) =
(void *) BPF_FUNC_skb_ecn_set_ce;
diff --git a/tools/testing/selftests/bpf/prog_tests/map_lock.c b/tools/testing/selftests/bpf/prog_tests/map_lock.c
index 90f8a206340a..ee99368c595c 100644
--- a/tools/testing/selftests/bpf/prog_tests/map_lock.c
+++ b/tools/testing/selftests/bpf/prog_tests/map_lock.c
@@ -37,7 +37,7 @@ void test_map_lock(void)
const char *file = "./test_map_lock.o";
int prog_fd, map_fd[2], vars[17] = {};
pthread_t thread_id[6];
- struct bpf_object *obj;
+ struct bpf_object *obj = NULL;
int err = 0, key = 0, i;
void *ret;
diff --git a/tools/testing/selftests/bpf/prog_tests/signal_pending.c b/tools/testing/selftests/bpf/prog_tests/signal_pending.c
index f2a37bbf91ab..996e808f43a2 100644
--- a/tools/testing/selftests/bpf/prog_tests/signal_pending.c
+++ b/tools/testing/selftests/bpf/prog_tests/signal_pending.c
@@ -12,7 +12,7 @@ static void test_signal_pending_by_type(enum bpf_prog_type prog_type)
struct itimerval timeo = {
.it_value.tv_usec = 100000, /* 100ms */
};
- __u32 duration, retval;
+ __u32 duration = 0, retval;
int prog_fd;
int err;
int i;
diff --git a/tools/testing/selftests/bpf/prog_tests/spinlock.c b/tools/testing/selftests/bpf/prog_tests/spinlock.c
index 9a573a9675d7..114ebe6a438e 100644
--- a/tools/testing/selftests/bpf/prog_tests/spinlock.c
+++ b/tools/testing/selftests/bpf/prog_tests/spinlock.c
@@ -5,7 +5,7 @@ void test_spinlock(void)
{
const char *file = "./test_spin_lock.o";
pthread_t thread_id[4];
- struct bpf_object *obj;
+ struct bpf_object *obj = NULL;
int prog_fd;
int err = 0, i;
void *ret;
diff --git a/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c b/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c
index de1a43e8f610..37328f148538 100644
--- a/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c
+++ b/tools/testing/selftests/bpf/progs/test_sock_fields_kern.c
@@ -8,38 +8,51 @@
#include "bpf_helpers.h"
#include "bpf_endian.h"
-enum bpf_array_idx {
- SRV_IDX,
- CLI_IDX,
- __NR_BPF_ARRAY_IDX,
+enum bpf_addr_array_idx {
+ ADDR_SRV_IDX,
+ ADDR_CLI_IDX,
+ __NR_BPF_ADDR_ARRAY_IDX,
+};
+
+enum bpf_result_array_idx {
+ EGRESS_SRV_IDX,
+ EGRESS_CLI_IDX,
+ INGRESS_LISTEN_IDX,
+ __NR_BPF_RESULT_ARRAY_IDX,
+};
+
+enum bpf_linum_array_idx {
+ EGRESS_LINUM_IDX,
+ INGRESS_LINUM_IDX,
+ __NR_BPF_LINUM_ARRAY_IDX,
};
struct bpf_map_def SEC("maps") addr_map = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(__u32),
.value_size = sizeof(struct sockaddr_in6),
- .max_entries = __NR_BPF_ARRAY_IDX,
+ .max_entries = __NR_BPF_ADDR_ARRAY_IDX,
};
struct bpf_map_def SEC("maps") sock_result_map = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(__u32),
.value_size = sizeof(struct bpf_sock),
- .max_entries = __NR_BPF_ARRAY_IDX,
+ .max_entries = __NR_BPF_RESULT_ARRAY_IDX,
};
struct bpf_map_def SEC("maps") tcp_sock_result_map = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(__u32),
.value_size = sizeof(struct bpf_tcp_sock),
- .max_entries = __NR_BPF_ARRAY_IDX,
+ .max_entries = __NR_BPF_RESULT_ARRAY_IDX,
};
struct bpf_map_def SEC("maps") linum_map = {
.type = BPF_MAP_TYPE_ARRAY,
.key_size = sizeof(__u32),
.value_size = sizeof(__u32),
- .max_entries = 1,
+ .max_entries = __NR_BPF_LINUM_ARRAY_IDX,
};
static bool is_loopback6(__u32 *a6)
@@ -100,18 +113,20 @@ static void tpcpy(struct bpf_tcp_sock *dst,
#define RETURN { \
linum = __LINE__; \
- bpf_map_update_elem(&linum_map, &idx0, &linum, 0); \
+ bpf_map_update_elem(&linum_map, &linum_idx, &linum, 0); \
return 1; \
}
SEC("cgroup_skb/egress")
-int read_sock_fields(struct __sk_buff *skb)
+int egress_read_sock_fields(struct __sk_buff *skb)
{
- __u32 srv_idx = SRV_IDX, cli_idx = CLI_IDX, idx;
+ __u32 srv_idx = ADDR_SRV_IDX, cli_idx = ADDR_CLI_IDX, result_idx;
struct sockaddr_in6 *srv_sa6, *cli_sa6;
struct bpf_tcp_sock *tp, *tp_ret;
struct bpf_sock *sk, *sk_ret;
- __u32 linum, idx0 = 0;
+ __u32 linum, linum_idx;
+
+ linum_idx = EGRESS_LINUM_IDX;
sk = skb->sk;
if (!sk || sk->state == 10)
@@ -132,14 +147,55 @@ int read_sock_fields(struct __sk_buff *skb)
RETURN;
if (sk->src_port == bpf_ntohs(srv_sa6->sin6_port))
- idx = srv_idx;
+ result_idx = EGRESS_SRV_IDX;
else if (sk->src_port == bpf_ntohs(cli_sa6->sin6_port))
- idx = cli_idx;
+ result_idx = EGRESS_CLI_IDX;
else
RETURN;
- sk_ret = bpf_map_lookup_elem(&sock_result_map, &idx);
- tp_ret = bpf_map_lookup_elem(&tcp_sock_result_map, &idx);
+ sk_ret = bpf_map_lookup_elem(&sock_result_map, &result_idx);
+ tp_ret = bpf_map_lookup_elem(&tcp_sock_result_map, &result_idx);
+ if (!sk_ret || !tp_ret)
+ RETURN;
+
+ skcpy(sk_ret, sk);
+ tpcpy(tp_ret, tp);
+
+ RETURN;
+}
+
+SEC("cgroup_skb/ingress")
+int ingress_read_sock_fields(struct __sk_buff *skb)
+{
+ __u32 srv_idx = ADDR_SRV_IDX, result_idx = INGRESS_LISTEN_IDX;
+ struct bpf_tcp_sock *tp, *tp_ret;
+ struct bpf_sock *sk, *sk_ret;
+ struct sockaddr_in6 *srv_sa6;
+ __u32 linum, linum_idx;
+
+ linum_idx = INGRESS_LINUM_IDX;
+
+ sk = skb->sk;
+ if (!sk || sk->family != AF_INET6 || !is_loopback6(sk->src_ip6))
+ RETURN;
+
+ srv_sa6 = bpf_map_lookup_elem(&addr_map, &srv_idx);
+ if (!srv_sa6 || sk->src_port != bpf_ntohs(srv_sa6->sin6_port))
+ RETURN;
+
+ if (sk->state != 10 && sk->state != 12)
+ RETURN;
+
+ sk = bpf_get_listener_sock(sk);
+ if (!sk)
+ RETURN;
+
+ tp = bpf_tcp_sock(sk);
+ if (!tp)
+ RETURN;
+
+ sk_ret = bpf_map_lookup_elem(&sock_result_map, &result_idx);
+ tp_ret = bpf_map_lookup_elem(&tcp_sock_result_map, &result_idx);
if (!sk_ret || !tp_ret)
RETURN;
diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c
index 38797aa627a7..23e3b314ca60 100644
--- a/tools/testing/selftests/bpf/test_btf.c
+++ b/tools/testing/selftests/bpf/test_btf.c
@@ -5874,6 +5874,50 @@ const struct btf_dedup_test dedup_tests[] = {
.dont_resolve_fwds = false,
},
},
+{
+ .descr = "dedup: enum fwd resolution",
+ .input = {
+ .raw_types = {
+ /* [1] fwd enum 'e1' before full enum */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
+ /* [2] full enum 'e1' after fwd */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+ BTF_ENUM_ENC(NAME_NTH(2), 123),
+ /* [3] full enum 'e2' before fwd */
+ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+ BTF_ENUM_ENC(NAME_NTH(4), 456),
+ /* [4] fwd enum 'e2' after full enum */
+ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
+ /* [5] incompatible fwd enum with different size */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1),
+ /* [6] incompatible full enum with different value */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+ BTF_ENUM_ENC(NAME_NTH(2), 321),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+ },
+ .expect = {
+ .raw_types = {
+ /* [1] full enum 'e1' */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+ BTF_ENUM_ENC(NAME_NTH(2), 123),
+ /* [2] full enum 'e2' */
+ BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+ BTF_ENUM_ENC(NAME_NTH(4), 456),
+ /* [3] incompatible fwd enum with different size */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1),
+ /* [4] incompatible full enum with different value */
+ BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+ BTF_ENUM_ENC(NAME_NTH(2), 321),
+ BTF_END_RAW,
+ },
+ BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+ },
+ .opts = {
+ .dont_resolve_fwds = false,
+ },
+},
};
diff --git a/tools/testing/selftests/bpf/test_lwt_ip_encap.sh b/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
index 612632c1425f..d4d3391cc13a 100755
--- a/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
+++ b/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
@@ -78,6 +78,8 @@ TEST_STATUS=0
TESTS_SUCCEEDED=0
TESTS_FAILED=0
+TMPFILE=""
+
process_test_results()
{
if [[ "${TEST_STATUS}" -eq 0 ]] ; then
@@ -147,7 +149,6 @@ setup()
ip -netns ${NS2} -6 addr add ${IPv6_7}/128 nodad dev veth7
ip -netns ${NS3} -6 addr add ${IPv6_8}/128 nodad dev veth8
-
ip -netns ${NS1} link set dev veth1 up
ip -netns ${NS2} link set dev veth2 up
ip -netns ${NS2} link set dev veth3 up
@@ -205,7 +206,7 @@ setup()
# configure IPv4 GRE device in NS3, and a route to it via the "bottom" route
ip -netns ${NS3} tunnel add gre_dev mode gre remote ${IPv4_1} local ${IPv4_GRE} ttl 255
ip -netns ${NS3} link set gre_dev up
- ip -netns ${NS3} addr add ${IPv4_GRE} nodad dev gre_dev
+ ip -netns ${NS3} addr add ${IPv4_GRE} dev gre_dev
ip -netns ${NS1} route add ${IPv4_GRE}/32 dev veth5 via ${IPv4_6}
ip -netns ${NS2} route add ${IPv4_GRE}/32 dev veth7 via ${IPv4_8}
@@ -222,12 +223,18 @@ setup()
ip netns exec ${NS2} sysctl -wq net.ipv4.conf.all.rp_filter=0
ip netns exec ${NS3} sysctl -wq net.ipv4.conf.all.rp_filter=0
+ TMPFILE=$(mktemp /tmp/test_lwt_ip_encap.XXXXXX)
+
sleep 1 # reduce flakiness
set +e
}
cleanup()
{
+ if [ -f ${TMPFILE} ] ; then
+ rm ${TMPFILE}
+ fi
+
ip netns del ${NS1} 2> /dev/null
ip netns del ${NS2} 2> /dev/null
ip netns del ${NS3} 2> /dev/null
@@ -278,6 +285,46 @@ test_ping()
fi
}
+test_gso()
+{
+ local readonly PROTO=$1
+ local readonly PKT_SZ=5000
+ local IP_DST=""
+ : > ${TMPFILE} # trim the capture file
+
+ # check that nc is present
+ command -v nc >/dev/null 2>&1 || \
+ { echo >&2 "nc is not available: skipping TSO tests"; return; }
+
+ # listen on IPv*_DST, capture TCP into $TMPFILE
+ if [ "${PROTO}" == "IPv4" ] ; then
+ IP_DST=${IPv4_DST}
+ ip netns exec ${NS3} bash -c \
+ "nc -4 -l -s ${IPv4_DST} -p 9000 > ${TMPFILE} &"
+ elif [ "${PROTO}" == "IPv6" ] ; then
+ IP_DST=${IPv6_DST}
+ ip netns exec ${NS3} bash -c \
+ "nc -6 -l -s ${IPv6_DST} -p 9000 > ${TMPFILE} &"
+ RET=$?
+ else
+ echo " test_gso: unknown PROTO: ${PROTO}"
+ TEST_STATUS=1
+ fi
+ sleep 1 # let nc start listening
+
+ # send a packet larger than MTU
+ ip netns exec ${NS1} bash -c \
+ "dd if=/dev/zero bs=$PKT_SZ count=1 > /dev/tcp/${IP_DST}/9000 2>/dev/null"
+ sleep 2 # let the packet get delivered
+
+ # verify we received all expected bytes
+ SZ=$(stat -c %s ${TMPFILE})
+ if [ "$SZ" != "$PKT_SZ" ] ; then
+ echo " test_gso failed: ${PROTO}"
+ TEST_STATUS=1
+ fi
+}
+
test_egress()
{
local readonly ENCAP=$1
@@ -307,6 +354,8 @@ test_egress()
fi
test_ping IPv4 0
test_ping IPv6 0
+ test_gso IPv4
+ test_gso IPv6
# a negative test: remove routes to GRE devices: ping fails
remove_routes_to_gredev
@@ -350,6 +399,7 @@ test_ingress()
ip -netns ${NS2} -6 route add ${IPv6_DST} encap bpf in obj test_lwt_ip_encap.o sec encap_gre6 dev veth2
else
echo "FAIL: unknown encap ${ENCAP}"
+ TEST_STATUS=1
fi
test_ping IPv4 0
test_ping IPv6 0
diff --git a/tools/testing/selftests/bpf/test_sock_fields.c b/tools/testing/selftests/bpf/test_sock_fields.c
index bc8943938bf5..dcae7f664dce 100644
--- a/tools/testing/selftests/bpf/test_sock_fields.c
+++ b/tools/testing/selftests/bpf/test_sock_fields.c
@@ -16,10 +16,23 @@
#include "cgroup_helpers.h"
#include "bpf_rlimit.h"
-enum bpf_array_idx {
- SRV_IDX,
- CLI_IDX,
- __NR_BPF_ARRAY_IDX,
+enum bpf_addr_array_idx {
+ ADDR_SRV_IDX,
+ ADDR_CLI_IDX,
+ __NR_BPF_ADDR_ARRAY_IDX,
+};
+
+enum bpf_result_array_idx {
+ EGRESS_SRV_IDX,
+ EGRESS_CLI_IDX,
+ INGRESS_LISTEN_IDX,
+ __NR_BPF_RESULT_ARRAY_IDX,
+};
+
+enum bpf_linum_array_idx {
+ EGRESS_LINUM_IDX,
+ INGRESS_LINUM_IDX,
+ __NR_BPF_LINUM_ARRAY_IDX,
};
#define CHECK(condition, tag, format...) ({ \
@@ -41,8 +54,16 @@ static int linum_map_fd;
static int addr_map_fd;
static int tp_map_fd;
static int sk_map_fd;
-static __u32 srv_idx = SRV_IDX;
-static __u32 cli_idx = CLI_IDX;
+
+static __u32 addr_srv_idx = ADDR_SRV_IDX;
+static __u32 addr_cli_idx = ADDR_CLI_IDX;
+
+static __u32 egress_srv_idx = EGRESS_SRV_IDX;
+static __u32 egress_cli_idx = EGRESS_CLI_IDX;
+static __u32 ingress_listen_idx = INGRESS_LISTEN_IDX;
+
+static __u32 egress_linum_idx = EGRESS_LINUM_IDX;
+static __u32 ingress_linum_idx = INGRESS_LINUM_IDX;
static void init_loopback6(struct sockaddr_in6 *sa6)
{
@@ -93,29 +114,46 @@ static void print_tp(const struct bpf_tcp_sock *tp)
static void check_result(void)
{
- struct bpf_tcp_sock srv_tp, cli_tp;
- struct bpf_sock srv_sk, cli_sk;
- __u32 linum, idx0 = 0;
+ struct bpf_tcp_sock srv_tp, cli_tp, listen_tp;
+ struct bpf_sock srv_sk, cli_sk, listen_sk;
+ __u32 ingress_linum, egress_linum;
int err;
- err = bpf_map_lookup_elem(linum_map_fd, &idx0, &linum);
+ err = bpf_map_lookup_elem(linum_map_fd, &egress_linum_idx,
+ &egress_linum);
CHECK(err == -1, "bpf_map_lookup_elem(linum_map_fd)",
"err:%d errno:%d", err, errno);
- err = bpf_map_lookup_elem(sk_map_fd, &srv_idx, &srv_sk);
- CHECK(err == -1, "bpf_map_lookup_elem(sk_map_fd, &srv_idx)",
+ err = bpf_map_lookup_elem(linum_map_fd, &ingress_linum_idx,
+ &ingress_linum);
+ CHECK(err == -1, "bpf_map_lookup_elem(linum_map_fd)",
+ "err:%d errno:%d", err, errno);
+
+ err = bpf_map_lookup_elem(sk_map_fd, &egress_srv_idx, &srv_sk);
+ CHECK(err == -1, "bpf_map_lookup_elem(sk_map_fd, &egress_srv_idx)",
+ "err:%d errno:%d", err, errno);
+ err = bpf_map_lookup_elem(tp_map_fd, &egress_srv_idx, &srv_tp);
+ CHECK(err == -1, "bpf_map_lookup_elem(tp_map_fd, &egress_srv_idx)",
+ "err:%d errno:%d", err, errno);
+
+ err = bpf_map_lookup_elem(sk_map_fd, &egress_cli_idx, &cli_sk);
+ CHECK(err == -1, "bpf_map_lookup_elem(sk_map_fd, &egress_cli_idx)",
"err:%d errno:%d", err, errno);
- err = bpf_map_lookup_elem(tp_map_fd, &srv_idx, &srv_tp);
- CHECK(err == -1, "bpf_map_lookup_elem(tp_map_fd, &srv_idx)",
+ err = bpf_map_lookup_elem(tp_map_fd, &egress_cli_idx, &cli_tp);
+ CHECK(err == -1, "bpf_map_lookup_elem(tp_map_fd, &egress_cli_idx)",
"err:%d errno:%d", err, errno);
- err = bpf_map_lookup_elem(sk_map_fd, &cli_idx, &cli_sk);
- CHECK(err == -1, "bpf_map_lookup_elem(sk_map_fd, &cli_idx)",
+ err = bpf_map_lookup_elem(sk_map_fd, &ingress_listen_idx, &listen_sk);
+ CHECK(err == -1, "bpf_map_lookup_elem(sk_map_fd, &ingress_listen_idx)",
"err:%d errno:%d", err, errno);
- err = bpf_map_lookup_elem(tp_map_fd, &cli_idx, &cli_tp);
- CHECK(err == -1, "bpf_map_lookup_elem(tp_map_fd, &cli_idx)",
+ err = bpf_map_lookup_elem(tp_map_fd, &ingress_listen_idx, &listen_tp);
+ CHECK(err == -1, "bpf_map_lookup_elem(tp_map_fd, &ingress_listen_idx)",
"err:%d errno:%d", err, errno);
+ printf("listen_sk: ");
+ print_sk(&listen_sk);
+ printf("\n");
+
printf("srv_sk: ");
print_sk(&srv_sk);
printf("\n");
@@ -124,6 +162,10 @@ static void check_result(void)
print_sk(&cli_sk);
printf("\n");
+ printf("listen_tp: ");
+ print_tp(&listen_tp);
+ printf("\n");
+
printf("srv_tp: ");
print_tp(&srv_tp);
printf("\n");
@@ -132,6 +174,19 @@ static void check_result(void)
print_tp(&cli_tp);
printf("\n");
+ CHECK(listen_sk.state != 10 ||
+ listen_sk.family != AF_INET6 ||
+ listen_sk.protocol != IPPROTO_TCP ||
+ memcmp(listen_sk.src_ip6, &in6addr_loopback,
+ sizeof(listen_sk.src_ip6)) ||
+ listen_sk.dst_ip6[0] || listen_sk.dst_ip6[1] ||
+ listen_sk.dst_ip6[2] || listen_sk.dst_ip6[3] ||
+ listen_sk.src_port != ntohs(srv_sa6.sin6_port) ||
+ listen_sk.dst_port,
+ "Unexpected listen_sk",
+ "Check listen_sk output. ingress_linum:%u",
+ ingress_linum);
+
CHECK(srv_sk.state == 10 ||
!srv_sk.state ||
srv_sk.family != AF_INET6 ||
@@ -142,7 +197,8 @@ static void check_result(void)
sizeof(srv_sk.dst_ip6)) ||
srv_sk.src_port != ntohs(srv_sa6.sin6_port) ||
srv_sk.dst_port != cli_sa6.sin6_port,
- "Unexpected srv_sk", "Check srv_sk output. linum:%u", linum);
+ "Unexpected srv_sk", "Check srv_sk output. egress_linum:%u",
+ egress_linum);
CHECK(cli_sk.state == 10 ||
!cli_sk.state ||
@@ -154,21 +210,31 @@ static void check_result(void)
sizeof(cli_sk.dst_ip6)) ||
cli_sk.src_port != ntohs(cli_sa6.sin6_port) ||
cli_sk.dst_port != srv_sa6.sin6_port,
- "Unexpected cli_sk", "Check cli_sk output. linum:%u", linum);
+ "Unexpected cli_sk", "Check cli_sk output. egress_linum:%u",
+ egress_linum);
+
+ CHECK(listen_tp.data_segs_out ||
+ listen_tp.data_segs_in ||
+ listen_tp.total_retrans ||
+ listen_tp.bytes_acked,
+ "Unexpected listen_tp", "Check listen_tp output. ingress_linum:%u",
+ ingress_linum);
CHECK(srv_tp.data_segs_out != 1 ||
srv_tp.data_segs_in ||
srv_tp.snd_cwnd != 10 ||
srv_tp.total_retrans ||
srv_tp.bytes_acked != DATA_LEN,
- "Unexpected srv_tp", "Check srv_tp output. linum:%u", linum);
+ "Unexpected srv_tp", "Check srv_tp output. egress_linum:%u",
+ egress_linum);
CHECK(cli_tp.data_segs_out ||
cli_tp.data_segs_in != 1 ||
cli_tp.snd_cwnd != 10 ||
cli_tp.total_retrans ||
cli_tp.bytes_received != DATA_LEN,
- "Unexpected cli_tp", "Check cli_tp output. linum:%u", linum);
+ "Unexpected cli_tp", "Check cli_tp output. egress_linum:%u",
+ egress_linum);
}
static void test(void)
@@ -211,10 +277,10 @@ static void test(void)
err, errno);
/* Update addr_map with srv_sa6 and cli_sa6 */
- err = bpf_map_update_elem(addr_map_fd, &srv_idx, &srv_sa6, 0);
+ err = bpf_map_update_elem(addr_map_fd, &addr_srv_idx, &srv_sa6, 0);
CHECK(err, "map_update", "err:%d errno:%d", err, errno);
- err = bpf_map_update_elem(addr_map_fd, &cli_idx, &cli_sa6, 0);
+ err = bpf_map_update_elem(addr_map_fd, &addr_cli_idx, &cli_sa6, 0);
CHECK(err, "map_update", "err:%d errno:%d", err, errno);
/* Connect from cli_sa6 to srv_sa6 */
@@ -273,9 +339,9 @@ int main(int argc, char **argv)
struct bpf_prog_load_attr attr = {
.file = "test_sock_fields_kern.o",
.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
- .expected_attach_type = BPF_CGROUP_INET_EGRESS,
};
- int cgroup_fd, prog_fd, err;
+ int cgroup_fd, egress_fd, ingress_fd, err;
+ struct bpf_program *ingress_prog;
struct bpf_object *obj;
struct bpf_map *map;
@@ -293,12 +359,24 @@ int main(int argc, char **argv)
err = join_cgroup(TEST_CGROUP);
CHECK(err, "join_cgroup", "err:%d errno:%d", err, errno);
- err = bpf_prog_load_xattr(&attr, &obj, &prog_fd);
+ err = bpf_prog_load_xattr(&attr, &obj, &egress_fd);
CHECK(err, "bpf_prog_load_xattr()", "err:%d", err);
- err = bpf_prog_attach(prog_fd, cgroup_fd, BPF_CGROUP_INET_EGRESS, 0);
+ ingress_prog = bpf_object__find_program_by_title(obj,
+ "cgroup_skb/ingress");
+ CHECK(!ingress_prog,
+ "bpf_object__find_program_by_title(cgroup_skb/ingress)",
+ "not found");
+ ingress_fd = bpf_program__fd(ingress_prog);
+
+ err = bpf_prog_attach(egress_fd, cgroup_fd, BPF_CGROUP_INET_EGRESS, 0);
CHECK(err == -1, "bpf_prog_attach(CPF_CGROUP_INET_EGRESS)",
"err:%d errno%d", err, errno);
+
+ err = bpf_prog_attach(ingress_fd, cgroup_fd,
+ BPF_CGROUP_INET_INGRESS, 0);
+ CHECK(err == -1, "bpf_prog_attach(CPF_CGROUP_INET_INGRESS)",
+ "err:%d errno%d", err, errno);
close(cgroup_fd);
map = bpf_object__find_map_by_name(obj, "addr_map");
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
index 4004891afa9c..f2ccae39ee66 100644
--- a/tools/testing/selftests/bpf/verifier/calls.c
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -1940,3 +1940,28 @@
.errstr = "!read_ok",
.result = REJECT,
},
+{
+ "calls: cross frame pruning - liveness propagation",
+ .insns = {
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_8, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_8, 1),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+ BPF_MOV64_IMM(BPF_REG_9, 0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_MOV64_IMM(BPF_REG_9, 1),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+ BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+ .errstr_unpriv = "function calls to other bpf functions are allowed for root only",
+ .errstr = "!read_ok",
+ .result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_imm64.c b/tools/testing/selftests/bpf/verifier/ld_imm64.c
index 28b8c805a293..3856dba733e9 100644
--- a/tools/testing/selftests/bpf/verifier/ld_imm64.c
+++ b/tools/testing/selftests/bpf/verifier/ld_imm64.c
@@ -122,7 +122,7 @@
.insns = {
BPF_MOV64_IMM(BPF_REG_1, 0),
BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
- BPF_RAW_INSN(0, 0, 0, 0, 1),
+ BPF_RAW_INSN(0, 0, 0, 0, 0),
BPF_EXIT_INSN(),
},
.errstr = "not pointing to valid bpf_map",
@@ -139,3 +139,16 @@
.errstr = "invalid bpf_ld_imm64 insn",
.result = REJECT,
},
+{
+ "test14 ld_imm64: reject 2nd imm != 0",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_1,
+ BPF_PSEUDO_MAP_FD, 0, 0),
+ BPF_RAW_INSN(0, 0, 0, 0, 0xfefefe),
+ BPF_EXIT_INSN(),
+ },
+ .fixup_map_hash_48b = { 1 },
+ .errstr = "unrecognized bpf_ld_imm64 insn",
+ .result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ref_tracking.c b/tools/testing/selftests/bpf/verifier/ref_tracking.c
index 3ed3593bd8b6..923f2110072d 100644
--- a/tools/testing/selftests/bpf/verifier/ref_tracking.c
+++ b/tools/testing/selftests/bpf/verifier/ref_tracking.c
@@ -605,3 +605,171 @@
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
.result = ACCEPT,
},
+{
+ "reference tracking: use ptr from bpf_tcp_sock() after release",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_tcp_sock),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_7, offsetof(struct bpf_tcp_sock, snd_cwnd)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "invalid mem access",
+},
+{
+ "reference tracking: use ptr from bpf_sk_fullsock() after release",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_fullsock),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_7, offsetof(struct bpf_sock, type)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "invalid mem access",
+},
+{
+ "reference tracking: use ptr from bpf_sk_fullsock(tp) after release",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_tcp_sock),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_fullsock),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, offsetof(struct bpf_sock, type)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "invalid mem access",
+},
+{
+ "reference tracking: use sk after bpf_sk_release(tp)",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_tcp_sock),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, offsetof(struct bpf_sock, type)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "invalid mem access",
+},
+{
+ "reference tracking: use ptr from bpf_get_listener_sock() after bpf_sk_release(sk)",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_get_listener_sock),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, offsetof(struct bpf_sock, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = ACCEPT,
+},
+{
+ "reference tracking: bpf_sk_release(listen_sk)",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_get_listener_sock),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, offsetof(struct bpf_sock, type)),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "reference has not been acquired before",
+},
+{
+ /* !bpf_sk_fullsock(sk) is checked but !bpf_tcp_sock(sk) is not checked */
+ "reference tracking: tp->snd_cwnd after bpf_sk_fullsock(sk) and bpf_tcp_sock(sk)",
+ .insns = {
+ BPF_SK_LOOKUP,
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+ BPF_EXIT_INSN(),
+ BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+ BPF_EMIT_CALL(BPF_FUNC_sk_fullsock),
+ BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_tcp_sock),
+ BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0, 3),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_8, offsetof(struct bpf_tcp_sock, snd_cwnd)),
+ BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+ BPF_EMIT_CALL(BPF_FUNC_sk_release),
+ BPF_EXIT_INSN(),
+ },
+ .prog_type = BPF_PROG_TYPE_SCHED_CLS,
+ .result = REJECT,
+ .errstr = "invalid mem access",
+},
diff --git a/tools/testing/selftests/bpf/verifier/sock.c b/tools/testing/selftests/bpf/verifier/sock.c
index 0ddfdf76aba5..416436231fab 100644
--- a/tools/testing/selftests/bpf/verifier/sock.c
+++ b/tools/testing/selftests/bpf/verifier/sock.c
@@ -342,7 +342,7 @@
},
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
.result = REJECT,
- .errstr = "type=sock_common expected=sock",
+ .errstr = "reference has not been acquired before",
},
{
"bpf_sk_release(bpf_sk_fullsock(skb->sk))",
@@ -380,5 +380,5 @@
},
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
.result = REJECT,
- .errstr = "type=tcp_sock expected=sock",
+ .errstr = "reference has not been acquired before",
},
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