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// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
void test_obj_name(void)
{
struct {
const char *name;
int success;
int expected_errno;
} tests[] = {
{ "", 1, 0 },
{ "_123456789ABCDE", 1, 0 },
{ "_123456789ABCDEF", 0, EINVAL },
{ "_123456789ABCD\n", 0, EINVAL },
};
struct bpf_insn prog[] = {
BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
BPF_EXIT_INSN(),
};
__u32 duration = 0;
int i;
for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
size_t name_len = strlen(tests[i].name) + 1;
union bpf_attr attr;
size_t ncopy;
int fd;
/* test different attr.prog_name during BPF_PROG_LOAD */
ncopy = name_len < sizeof(attr.prog_name) ?
name_len : sizeof(attr.prog_name);
bzero(&attr, sizeof(attr));
attr.prog_type = BPF_PROG_TYPE_SCHED_CLS;
attr.insn_cnt = 2;
attr.insns = ptr_to_u64(prog);
attr.license = ptr_to_u64("");
memcpy(attr.prog_name, tests[i].name, ncopy);
fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
CHECK((tests[i].success && fd < 0) ||
(!tests[i].success && fd != -1) ||
(!tests[i].success && errno != tests[i].expected_errno),
"check-bpf-prog-name",
"fd %d(%d) errno %d(%d)\n",
fd, tests[i].success, errno, tests[i].expected_errno);
if (fd != -1)
close(fd);
/* test different attr.map_name during BPF_MAP_CREATE */
ncopy = name_len < sizeof(attr.map_name) ?
name_len : sizeof(attr.map_name);
bzero(&attr, sizeof(attr));
attr.map_type = BPF_MAP_TYPE_ARRAY;
attr.key_size = 4;
attr.value_size = 4;
attr.max_entries = 1;
attr.map_flags = 0;
memcpy(attr.map_name, tests[i].name, ncopy);
fd = syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));
CHECK((tests[i].success && fd < 0) ||
(!tests[i].success && fd != -1) ||
(!tests[i].success && errno != tests[i].expected_errno),
"check-bpf-map-name",
"fd %d(%d) errno %d(%d)\n",
fd, tests[i].success, errno, tests[i].expected_errno);
if (fd != -1)
close(fd);
}
}
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