diff options
| author | Stanislav Fomichev <sdf@google.com> | 2021-01-27 15:28:51 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-01-29 02:09:05 +0100 |
| commit | 073f4ec124bb2c431d9e4136e7f583abfea7f290 (patch) | |
| tree | 5392d91fff59bfcd2375a442c3729ee6e0952956 /tools/testing/selftests/bpf | |
| parent | 62476cc1bf24b34d9442c7ba76e5eb6bf242f911 (diff) | |
bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_INET{4,6}_GET{PEER,SOCK}NAME
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on
a locked socket.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-3-sdf@google.com
Diffstat (limited to 'tools/testing/selftests/bpf')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/connect_force_port4.c | 8 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/connect_force_port6.c | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/connect_force_port4.c b/tools/testing/selftests/bpf/progs/connect_force_port4.c index 7396308677a3..a979aaef2a76 100644 --- a/tools/testing/selftests/bpf/progs/connect_force_port4.c +++ b/tools/testing/selftests/bpf/progs/connect_force_port4.c @@ -10,6 +10,8 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> +#include <bpf_sockopt_helpers.h> + char _license[] SEC("license") = "GPL"; int _version SEC("version") = 1; @@ -58,6 +60,9 @@ int connect4(struct bpf_sock_addr *ctx) SEC("cgroup/getsockname4") int getsockname4(struct bpf_sock_addr *ctx) { + if (!get_set_sk_priority(ctx)) + return 1; + /* Expose local server as 1.2.3.4:60000 to client. */ if (ctx->user_port == bpf_htons(60123)) { ctx->user_ip4 = bpf_htonl(0x01020304); @@ -71,6 +76,9 @@ int getpeername4(struct bpf_sock_addr *ctx) { struct svc_addr *orig; + if (!get_set_sk_priority(ctx)) + return 1; + /* Expose service 1.2.3.4:60000 as peer instead of backend. */ if (ctx->user_port == bpf_htons(60123)) { orig = bpf_sk_storage_get(&service_mapping, ctx->sk, 0, 0); diff --git a/tools/testing/selftests/bpf/progs/connect_force_port6.c b/tools/testing/selftests/bpf/progs/connect_force_port6.c index c1a2b555e9ad..afc8f1c5a9d6 100644 --- a/tools/testing/selftests/bpf/progs/connect_force_port6.c +++ b/tools/testing/selftests/bpf/progs/connect_force_port6.c @@ -9,6 +9,8 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> +#include <bpf_sockopt_helpers.h> + char _license[] SEC("license") = "GPL"; int _version SEC("version") = 1; @@ -63,6 +65,9 @@ int connect6(struct bpf_sock_addr *ctx) SEC("cgroup/getsockname6") int getsockname6(struct bpf_sock_addr *ctx) { + if (!get_set_sk_priority(ctx)) + return 1; + /* Expose local server as [fc00::1]:60000 to client. */ if (ctx->user_port == bpf_htons(60124)) { ctx->user_ip6[0] = bpf_htonl(0xfc000000); @@ -79,6 +84,9 @@ int getpeername6(struct bpf_sock_addr *ctx) { struct svc_addr *orig; + if (!get_set_sk_priority(ctx)) + return 1; + /* Expose service [fc00::1]:60000 as peer instead of backend. */ if (ctx->user_port == bpf_htons(60124)) { orig = bpf_sk_storage_get(&service_mapping, ctx->sk, 0, 0); |