diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c b/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c index c8e4553648bf..7d5293de1952 100644 --- a/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c +++ b/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c @@ -9,6 +9,7 @@ #include "bpf_kfuncs.h" #include "test_siphash.h" #include "test_tcp_custom_syncookie.h" +#include "bpf_misc.h" #define MAX_PACKET_OFF 0xffff @@ -293,7 +294,9 @@ static int tcp_validate_sysctl(struct tcp_syncookie *ctx) (ctx->ipv6 && ctx->attrs.mss != MSS_LOCAL_IPV6)) goto err; - if (!ctx->attrs.wscale_ok || ctx->attrs.snd_wscale != 7) + if (!ctx->attrs.wscale_ok || + !ctx->attrs.snd_wscale || + ctx->attrs.snd_wscale >= BPF_SYNCOOKIE_WSCALE_MASK) goto err; if (!ctx->attrs.tstamp_ok) @@ -485,17 +488,10 @@ static int tcp_validate_cookie(struct tcp_syncookie *ctx) goto err; mssind = (cookie & (3 << 6)) >> 6; - if (ctx->ipv4) { - if (mssind > ARRAY_SIZE(msstab4)) - goto err; - + if (ctx->ipv4) ctx->attrs.mss = msstab4[mssind]; - } else { - if (mssind > ARRAY_SIZE(msstab6)) - goto err; - + else ctx->attrs.mss = msstab6[mssind]; - } ctx->attrs.snd_wscale = cookie & BPF_SYNCOOKIE_WSCALE_MASK; ctx->attrs.rcv_wscale = ctx->attrs.snd_wscale; |