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Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_tunnel_kern.c')
-rw-r--r--tools/testing/selftests/bpf/progs/test_tunnel_kern.c371
1 files changed, 236 insertions, 135 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
index ef0dde83b85a..17f2f325b3f3 100644
--- a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
+++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
@@ -21,10 +21,7 @@
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_endian.h>
-#define ERROR(ret) do {\
- char fmt[] = "ERROR line:%d ret:%d\n";\
- bpf_trace_printk(fmt, sizeof(fmt), __LINE__, ret); \
- } while (0)
+#define log_err(__ret) bpf_printk("ERROR line:%d ret:%d\n", __LINE__, __ret)
struct geneve_opt {
__be16 opt_class;
@@ -40,8 +37,15 @@ struct vxlan_metadata {
__u32 gbp;
};
-SEC("gre_set_tunnel")
-int _gre_set_tunnel(struct __sk_buff *skb)
+struct {
+ __uint(type, BPF_MAP_TYPE_ARRAY);
+ __uint(max_entries, 1);
+ __type(key, __u32);
+ __type(value, __u32);
+} local_ip_map SEC(".maps");
+
+SEC("tc")
+int gre_set_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
@@ -55,32 +59,31 @@ int _gre_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_ZERO_CSUM_TX | BPF_F_SEQ_NUMBER);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("gre_get_tunnel")
-int _gre_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int gre_get_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
- char fmt[] = "key %d remote ip 0x%x\n";
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt), key.tunnel_id, key.remote_ipv4);
+ bpf_printk("key %d remote ip 0x%x\n", key.tunnel_id, key.remote_ipv4);
return TC_ACT_OK;
}
-SEC("ip6gretap_set_tunnel")
-int _ip6gretap_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6gretap_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key;
int ret;
@@ -96,35 +99,34 @@ int _ip6gretap_set_tunnel(struct __sk_buff *skb)
BPF_F_TUNINFO_IPV6 | BPF_F_ZERO_CSUM_TX |
BPF_F_SEQ_NUMBER);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ip6gretap_get_tunnel")
-int _ip6gretap_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6gretap_get_tunnel(struct __sk_buff *skb)
{
- char fmt[] = "key %d remote ip6 ::%x label %x\n";
struct bpf_tunnel_key key;
int ret;
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv6[3], key.tunnel_label);
+ bpf_printk("key %d remote ip6 ::%x label %x\n",
+ key.tunnel_id, key.remote_ipv6[3], key.tunnel_label);
return TC_ACT_OK;
}
-SEC("erspan_set_tunnel")
-int _erspan_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int erspan_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key;
struct erspan_metadata md;
@@ -139,7 +141,7 @@ int _erspan_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_ZERO_CSUM_TX);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
@@ -159,17 +161,16 @@ int _erspan_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("erspan_get_tunnel")
-int _erspan_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int erspan_get_tunnel(struct __sk_buff *skb)
{
- char fmt[] = "key %d remote ip 0x%x erspan version %d\n";
struct bpf_tunnel_key key;
struct erspan_metadata md;
__u32 index;
@@ -177,38 +178,34 @@ int _erspan_get_tunnel(struct __sk_buff *skb)
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, md.version);
+ bpf_printk("key %d remote ip 0x%x erspan version %d\n",
+ key.tunnel_id, key.remote_ipv4, md.version);
#ifdef ERSPAN_V1
- char fmt2[] = "\tindex %x\n";
-
index = bpf_ntohl(md.u.index);
- bpf_trace_printk(fmt2, sizeof(fmt2), index);
+ bpf_printk("\tindex %x\n", index);
#else
- char fmt2[] = "\tdirection %d hwid %x timestamp %u\n";
-
- bpf_trace_printk(fmt2, sizeof(fmt2),
- md.u.md2.dir,
- (md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
- bpf_ntohl(md.u.md2.timestamp));
+ bpf_printk("\tdirection %d hwid %x timestamp %u\n",
+ md.u.md2.dir,
+ (md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
+ bpf_ntohl(md.u.md2.timestamp));
#endif
return TC_ACT_OK;
}
-SEC("ip4ip6erspan_set_tunnel")
-int _ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key;
struct erspan_metadata md;
@@ -223,7 +220,7 @@ int _ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
@@ -244,17 +241,16 @@ int _ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ip4ip6erspan_get_tunnel")
-int _ip4ip6erspan_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip4ip6erspan_get_tunnel(struct __sk_buff *skb)
{
- char fmt[] = "ip6erspan get key %d remote ip6 ::%x erspan version %d\n";
struct bpf_tunnel_key key;
struct erspan_metadata md;
__u32 index;
@@ -263,44 +259,88 @@ int _ip4ip6erspan_get_tunnel(struct __sk_buff *skb)
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, md.version);
+ bpf_printk("ip6erspan get key %d remote ip6 ::%x erspan version %d\n",
+ key.tunnel_id, key.remote_ipv4, md.version);
#ifdef ERSPAN_V1
- char fmt2[] = "\tindex %x\n";
-
index = bpf_ntohl(md.u.index);
- bpf_trace_printk(fmt2, sizeof(fmt2), index);
+ bpf_printk("\tindex %x\n", index);
#else
- char fmt2[] = "\tdirection %d hwid %x timestamp %u\n";
-
- bpf_trace_printk(fmt2, sizeof(fmt2),
- md.u.md2.dir,
- (md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
- bpf_ntohl(md.u.md2.timestamp));
+ bpf_printk("\tdirection %d hwid %x timestamp %u\n",
+ md.u.md2.dir,
+ (md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
+ bpf_ntohl(md.u.md2.timestamp));
#endif
return TC_ACT_OK;
}
-SEC("vxlan_set_tunnel")
-int _vxlan_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int vxlan_set_tunnel_dst(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
struct vxlan_metadata md;
+ __u32 index = 0;
+ __u32 *local_ip = NULL;
+
+ local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+ if (!local_ip) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
+
+ __builtin_memset(&key, 0x0, sizeof(key));
+ key.local_ipv4 = 0xac100164; /* 172.16.1.100 */
+ key.remote_ipv4 = *local_ip;
+ key.tunnel_id = 2;
+ key.tunnel_tos = 0;
+ key.tunnel_ttl = 64;
+
+ ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+ BPF_F_ZERO_CSUM_TX);
+ if (ret < 0) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
+
+ md.gbp = 0x800FF; /* Set VXLAN Group Policy extension */
+ ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
+ if (ret < 0) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
+
+ return TC_ACT_OK;
+}
+
+SEC("tc")
+int vxlan_set_tunnel_src(struct __sk_buff *skb)
+{
+ int ret;
+ struct bpf_tunnel_key key;
+ struct vxlan_metadata md;
+ __u32 index = 0;
+ __u32 *local_ip = NULL;
+
+ local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+ if (!local_ip) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
__builtin_memset(&key, 0x0, sizeof(key));
+ key.local_ipv4 = *local_ip;
key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
key.tunnel_id = 2;
key.tunnel_tos = 0;
@@ -309,53 +349,106 @@ int _vxlan_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_ZERO_CSUM_TX);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
md.gbp = 0x800FF; /* Set VXLAN Group Policy extension */
ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("vxlan_get_tunnel")
-int _vxlan_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int vxlan_get_tunnel_src(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
struct vxlan_metadata md;
- char fmt[] = "key %d remote ip 0x%x vxlan gbp 0x%x\n";
+ __u32 index = 0;
+ __u32 *local_ip = NULL;
+
+ local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+ if (!local_ip) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, md.gbp);
+ if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) {
+ bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n",
+ key.tunnel_id, key.local_ipv4,
+ key.remote_ipv4, md.gbp);
+ bpf_printk("local_ip 0x%x\n", *local_ip);
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
return TC_ACT_OK;
}
-SEC("ip6vxlan_set_tunnel")
-int _ip6vxlan_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6vxlan_set_tunnel_dst(struct __sk_buff *skb)
{
struct bpf_tunnel_key key;
int ret;
+ __u32 index = 0;
+ __u32 *local_ip;
+
+ local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+ if (!local_ip) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
__builtin_memset(&key, 0x0, sizeof(key));
+ key.local_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+ key.remote_ipv6[3] = bpf_htonl(*local_ip);
+ key.tunnel_id = 22;
+ key.tunnel_tos = 0;
+ key.tunnel_ttl = 64;
+
+ ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+ BPF_F_TUNINFO_IPV6);
+ if (ret < 0) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
+
+ return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6vxlan_set_tunnel_src(struct __sk_buff *skb)
+{
+ struct bpf_tunnel_key key;
+ int ret;
+ __u32 index = 0;
+ __u32 *local_ip;
+
+ local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+ if (!local_ip) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
+
+ __builtin_memset(&key, 0x0, sizeof(key));
+ key.local_ipv6[3] = bpf_htonl(*local_ip);
key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
key.tunnel_id = 22;
key.tunnel_tos = 0;
@@ -364,35 +457,48 @@ int _ip6vxlan_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ip6vxlan_get_tunnel")
-int _ip6vxlan_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6vxlan_get_tunnel_src(struct __sk_buff *skb)
{
- char fmt[] = "key %d remote ip6 ::%x label %x\n";
struct bpf_tunnel_key key;
int ret;
+ __u32 index = 0;
+ __u32 *local_ip;
+
+ local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+ if (!local_ip) {
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv6[3], key.tunnel_label);
+ if (bpf_ntohl(key.local_ipv6[3]) != *local_ip) {
+ bpf_printk("ip6vxlan key %d local ip6 ::%x remote ip6 ::%x label 0x%x\n",
+ key.tunnel_id, bpf_ntohl(key.local_ipv6[3]),
+ bpf_ntohl(key.remote_ipv6[3]), key.tunnel_label);
+ bpf_printk("local_ip 0x%x\n", *local_ip);
+ log_err(ret);
+ return TC_ACT_SHOT;
+ }
return TC_ACT_OK;
}
-SEC("geneve_set_tunnel")
-int _geneve_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int geneve_set_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
@@ -416,30 +522,29 @@ int _geneve_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_ZERO_CSUM_TX);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
ret = bpf_skb_set_tunnel_opt(skb, &gopt, sizeof(gopt));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("geneve_get_tunnel")
-int _geneve_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int geneve_get_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
struct geneve_opt gopt;
- char fmt[] = "key %d remote ip 0x%x geneve class 0x%x\n";
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
@@ -447,13 +552,13 @@ int _geneve_get_tunnel(struct __sk_buff *skb)
if (ret < 0)
gopt.opt_class = 0;
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, gopt.opt_class);
+ bpf_printk("key %d remote ip 0x%x geneve class 0x%x\n",
+ key.tunnel_id, key.remote_ipv4, gopt.opt_class);
return TC_ACT_OK;
}
-SEC("ip6geneve_set_tunnel")
-int _ip6geneve_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6geneve_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key;
struct geneve_opt gopt;
@@ -468,7 +573,7 @@ int _ip6geneve_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
@@ -483,17 +588,16 @@ int _ip6geneve_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_opt(skb, &gopt, sizeof(gopt));
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ip6geneve_get_tunnel")
-int _ip6geneve_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6geneve_get_tunnel(struct __sk_buff *skb)
{
- char fmt[] = "key %d remote ip 0x%x geneve class 0x%x\n";
struct bpf_tunnel_key key;
struct geneve_opt gopt;
int ret;
@@ -501,7 +605,7 @@ int _ip6geneve_get_tunnel(struct __sk_buff *skb)
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
@@ -509,14 +613,14 @@ int _ip6geneve_get_tunnel(struct __sk_buff *skb)
if (ret < 0)
gopt.opt_class = 0;
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, gopt.opt_class);
+ bpf_printk("key %d remote ip 0x%x geneve class 0x%x\n",
+ key.tunnel_id, key.remote_ipv4, gopt.opt_class);
return TC_ACT_OK;
}
-SEC("ipip_set_tunnel")
-int _ipip_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ipip_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key = {};
void *data = (void *)(long)skb->data;
@@ -526,7 +630,7 @@ int _ipip_set_tunnel(struct __sk_buff *skb)
/* single length check */
if (data + sizeof(*iph) > data_end) {
- ERROR(1);
+ log_err(1);
return TC_ACT_SHOT;
}
@@ -537,32 +641,31 @@ int _ipip_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ipip_get_tunnel")
-int _ipip_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ipip_get_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
- char fmt[] = "remote ip 0x%x\n";
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt), key.remote_ipv4);
+ bpf_printk("remote ip 0x%x\n", key.remote_ipv4);
return TC_ACT_OK;
}
-SEC("ipip6_set_tunnel")
-int _ipip6_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ipip6_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key = {};
void *data = (void *)(long)skb->data;
@@ -572,7 +675,7 @@ int _ipip6_set_tunnel(struct __sk_buff *skb)
/* single length check */
if (data + sizeof(*iph) > data_end) {
- ERROR(1);
+ log_err(1);
return TC_ACT_SHOT;
}
@@ -585,34 +688,33 @@ int _ipip6_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ipip6_get_tunnel")
-int _ipip6_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ipip6_get_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
- char fmt[] = "remote ip6 %x::%x\n";
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt), bpf_htonl(key.remote_ipv6[0]),
- bpf_htonl(key.remote_ipv6[3]));
+ bpf_printk("remote ip6 %x::%x\n", bpf_htonl(key.remote_ipv6[0]),
+ bpf_htonl(key.remote_ipv6[3]));
return TC_ACT_OK;
}
-SEC("ip6ip6_set_tunnel")
-int _ip6ip6_set_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6ip6_set_tunnel(struct __sk_buff *skb)
{
struct bpf_tunnel_key key = {};
void *data = (void *)(long)skb->data;
@@ -622,7 +724,7 @@ int _ip6ip6_set_tunnel(struct __sk_buff *skb)
/* single length check */
if (data + sizeof(*iph) > data_end) {
- ERROR(1);
+ log_err(1);
return TC_ACT_SHOT;
}
@@ -634,45 +736,44 @@ int _ip6ip6_set_tunnel(struct __sk_buff *skb)
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
return TC_ACT_OK;
}
-SEC("ip6ip6_get_tunnel")
-int _ip6ip6_get_tunnel(struct __sk_buff *skb)
+SEC("tc")
+int ip6ip6_get_tunnel(struct __sk_buff *skb)
{
int ret;
struct bpf_tunnel_key key;
- char fmt[] = "remote ip6 %x::%x\n";
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
BPF_F_TUNINFO_IPV6);
if (ret < 0) {
- ERROR(ret);
+ log_err(ret);
return TC_ACT_SHOT;
}
- bpf_trace_printk(fmt, sizeof(fmt), bpf_htonl(key.remote_ipv6[0]),
- bpf_htonl(key.remote_ipv6[3]));
+ bpf_printk("remote ip6 %x::%x\n", bpf_htonl(key.remote_ipv6[0]),
+ bpf_htonl(key.remote_ipv6[3]));
return TC_ACT_OK;
}
-SEC("xfrm_get_state")
-int _xfrm_get_state(struct __sk_buff *skb)
+SEC("tc")
+int xfrm_get_state(struct __sk_buff *skb)
{
struct bpf_xfrm_state x;
- char fmt[] = "reqid %d spi 0x%x remote ip 0x%x\n";
int ret;
ret = bpf_skb_get_xfrm_state(skb, 0, &x, sizeof(x), 0);
if (ret < 0)
return TC_ACT_OK;
- bpf_trace_printk(fmt, sizeof(fmt), x.reqid, bpf_ntohl(x.spi),
- bpf_ntohl(x.remote_ipv4));
+ bpf_printk("reqid %d spi 0x%x remote ip 0x%x\n",
+ x.reqid, bpf_ntohl(x.spi),
+ bpf_ntohl(x.remote_ipv4));
return TC_ACT_OK;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-08 08:50:46 +0300