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// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
/* Copyright (C) 2019 Netronome Systems, Inc. */
/* Copyright (C) 2020 Facebook, Inc. */
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include "testing_helpers.h"
int parse_num_list(const char *s, bool **num_set, int *num_set_len)
{
int i, set_len = 0, new_len, num, start = 0, end = -1;
bool *set = NULL, *tmp, parsing_end = false;
char *next;
while (s[0]) {
errno = 0;
num = strtol(s, &next, 10);
if (errno)
return -errno;
if (parsing_end)
end = num;
else
start = num;
if (!parsing_end && *next == '-') {
s = next + 1;
parsing_end = true;
continue;
} else if (*next == ',') {
parsing_end = false;
s = next + 1;
end = num;
} else if (*next == '\0') {
parsing_end = false;
s = next;
end = num;
} else {
return -EINVAL;
}
if (start > end)
return -EINVAL;
if (end + 1 > set_len) {
new_len = end + 1;
tmp = realloc(set, new_len);
if (!tmp) {
free(set);
return -ENOMEM;
}
for (i = set_len; i < start; i++)
tmp[i] = false;
set = tmp;
set_len = new_len;
}
for (i = start; i <= end; i++)
set[i] = true;
}
if (!set || parsing_end)
return -EINVAL;
*num_set = set;
*num_set_len = set_len;
return 0;
}
__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info)
{
__u32 info_len = sizeof(*info);
int err;
memset(info, 0, sizeof(*info));
err = bpf_obj_get_info_by_fd(bpf_link__fd(link), info, &info_len);
if (err) {
printf("failed to get link info: %d\n", -errno);
return 0;
}
return info->prog_id;
}
int extra_prog_load_log_flags = 0;
int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
struct bpf_object **pobj, int *prog_fd)
{
LIBBPF_OPTS(bpf_object_open_opts, opts,
.kernel_log_level = extra_prog_load_log_flags,
);
struct bpf_object *obj;
struct bpf_program *prog;
__u32 flags;
int err;
obj = bpf_object__open_file(file, &opts);
if (!obj)
return -errno;
prog = bpf_object__next_program(obj, NULL);
if (!prog) {
err = -ENOENT;
goto err_out;
}
if (type != BPF_PROG_TYPE_UNSPEC)
bpf_program__set_type(prog, type);
flags = bpf_program__flags(prog) | BPF_F_TEST_RND_HI32;
bpf_program__set_flags(prog, flags);
err = bpf_object__load(obj);
if (err)
goto err_out;
*pobj = obj;
*prog_fd = bpf_program__fd(prog);
return 0;
err_out:
bpf_object__close(obj);
return err;
}
int bpf_test_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
size_t insns_cnt, const char *license,
__u32 kern_version, char *log_buf,
size_t log_buf_sz)
{
LIBBPF_OPTS(bpf_prog_load_opts, opts,
.kern_version = kern_version,
.prog_flags = BPF_F_TEST_RND_HI32,
.log_level = extra_prog_load_log_flags,
.log_buf = log_buf,
.log_size = log_buf_sz,
);
return bpf_prog_load(type, NULL, license, insns, insns_cnt, &opts);
}
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