diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/connect4_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/connect4_prog.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c index ec25371de789..9d158cfad981 100644 --- a/tools/testing/selftests/bpf/progs/connect4_prog.c +++ b/tools/testing/selftests/bpf/progs/connect4_prog.c @@ -14,8 +14,6 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_endian.h> -#include "bpf_tcp_helpers.h" - #define SRC_REWRITE_IP4 0x7f000004U #define DST_REWRITE_IP4 0x7f000001U #define DST_REWRITE_PORT4 4444 @@ -32,7 +30,14 @@ #define IFNAMSIZ 16 #endif -__attribute__ ((noinline)) +#ifndef SOL_TCP +#define SOL_TCP 6 +#endif + +const char reno[] = "reno"; +const char cubic[] = "cubic"; + +__attribute__ ((noinline)) __weak int do_bind(struct bpf_sock_addr *ctx) { struct sockaddr_in sa = {}; @@ -48,35 +53,27 @@ int do_bind(struct bpf_sock_addr *ctx) } static __inline int verify_cc(struct bpf_sock_addr *ctx, - char expected[TCP_CA_NAME_MAX]) + const char expected[]) { char buf[TCP_CA_NAME_MAX]; - int i; if (bpf_getsockopt(ctx, SOL_TCP, TCP_CONGESTION, &buf, sizeof(buf))) return 1; - for (i = 0; i < TCP_CA_NAME_MAX; i++) { - if (buf[i] != expected[i]) - return 1; - if (buf[i] == 0) - break; - } + if (bpf_strncmp(buf, TCP_CA_NAME_MAX, expected)) + return 1; return 0; } static __inline int set_cc(struct bpf_sock_addr *ctx) { - char reno[TCP_CA_NAME_MAX] = "reno"; - char cubic[TCP_CA_NAME_MAX] = "cubic"; - - if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, &reno, sizeof(reno))) + if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, (void *)reno, sizeof(reno))) return 1; if (verify_cc(ctx, reno)) return 1; - if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, &cubic, sizeof(cubic))) + if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, (void *)cubic, sizeof(cubic))) return 1; if (verify_cc(ctx, cubic)) return 1; @@ -197,4 +194,10 @@ int connect_v4_prog(struct bpf_sock_addr *ctx) return do_bind(ctx) ? 1 : 0; } +SEC("cgroup/connect4") +int connect_v4_deny_prog(struct bpf_sock_addr *ctx) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; |