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bpf: sockmap, add BPF_F_INGRESS tests

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Add a set of tests to verify ingress flag in redirect helpers
works correctly with various msg sizes.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
John Fastabend
2018-03-28 12:49:20 -07:00
committed by Daniel Borkmann
parent 8934ce2fd0
commit 2596f64cb2
3 changed files with 87 additions and 11 deletions
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35
samples/sockmap/sockmap_user.c
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@@ -64,6 +64,7 @@ int txmsg_apply;
int txmsg_cork;
int txmsg_start;
int txmsg_end;
int txmsg_ingress;
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h' },
@@ -83,6 +84,7 @@ static const struct option long_options[] = {
{"txmsg_cork", required_argument, NULL, 'k'},
{"txmsg_start", required_argument, NULL, 's'},
{"txmsg_end", required_argument, NULL, 'e'},
{"txmsg_ingress", no_argument, &txmsg_ingress, 1 },
{0, 0, NULL, 0 }
};
@@ -793,6 +795,39 @@ run:
return err;
}
}
if (txmsg_ingress) {
int in = BPF_F_INGRESS;
i = 0;
err = bpf_map_update_elem(map_fd[6], &i, &in, BPF_ANY);
if (err) {
fprintf(stderr,
"ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
err, strerror(errno));
}
i = 1;
err = bpf_map_update_elem(map_fd[1], &i, &p1, BPF_ANY);
if (err) {
fprintf(stderr,
"ERROR: bpf_map_update_elem (p1 txmsg): %d (%s)\n",
err, strerror(errno));
}
err = bpf_map_update_elem(map_fd[2], &i, &p1, BPF_ANY);
if (err) {
fprintf(stderr,
"ERROR: bpf_map_update_elem (p1 redir): %d (%s)\n",
err, strerror(errno));
}
i = 2;
err = bpf_map_update_elem(map_fd[2], &i, &p2, BPF_ANY);
if (err) {
fprintf(stderr,
"ERROR: bpf_map_update_elem (p2 txmsg): %d (%s)\n",
err, strerror(errno));
}
}
}
if (txmsg_drop)