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| author | Nikita V. Shirokov <tehnerd@tehnerd.com> | 2019-12-18 12:57:47 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-12-18 17:05:58 -0800 |
| commit | 6de6c1f840c051017f2308503858ff19344c56b3 (patch) | |
| tree | 7a2e27cb5f4e23ab53555c247f4fe25d972c4a83 /net | |
| parent | dacce6412e09b5dce19514e2c4e2a8aab0eb217f (diff) | |
| download | linux-6de6c1f840c051017f2308503858ff19344c56b3.tar.gz linux-6de6c1f840c051017f2308503858ff19344c56b3.tar.bz2 linux-6de6c1f840c051017f2308503858ff19344c56b3.zip | |
bpf: Allow to change skb mark in test_run
allow to pass skb's mark field into bpf_prog_test_run ctx
for BPF_PROG_TYPE_SCHED_CLS prog type. that would allow
to test bpf programs which are doing decision based on this
field
Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bpf/test_run.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 93a9c87787e0..d555c0d8657d 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -251,7 +251,13 @@ static int convert___skb_to_skb(struct sk_buff *skb, struct __sk_buff *__skb) return 0; /* make sure the fields we don't use are zeroed */ - if (!range_is_zero(__skb, 0, offsetof(struct __sk_buff, priority))) + if (!range_is_zero(__skb, 0, offsetof(struct __sk_buff, mark))) + return -EINVAL; + + /* mark is allowed */ + + if (!range_is_zero(__skb, offsetofend(struct __sk_buff, mark), + offsetof(struct __sk_buff, priority))) return -EINVAL; /* priority is allowed */ @@ -274,6 +280,7 @@ static int convert___skb_to_skb(struct sk_buff *skb, struct __sk_buff *__skb) sizeof(struct __sk_buff))) return -EINVAL; + skb->mark = __skb->mark; skb->priority = __skb->priority; skb->tstamp = __skb->tstamp; memcpy(&cb->data, __skb->cb, QDISC_CB_PRIV_LEN); @@ -301,6 +308,7 @@ static void convert_skb_to___skb(struct sk_buff *skb, struct __sk_buff *__skb) if (!__skb) return; + __skb->mark = skb->mark; __skb->priority = skb->priority; __skb->tstamp = skb->tstamp; memcpy(__skb->cb, &cb->data, QDISC_CB_PRIV_LEN); |