// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include <linux/nbd.h>
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void test_raw_tp_writable_reject_nbd_invalid(void)
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{
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__u32 duration = 0;
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char error[4096];
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int bpf_fd = -1, tp_fd = -1;
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const struct bpf_insn program[] = {
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/* r6 is our tp buffer */
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BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
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/* one byte beyond the end of the nbd_request struct */
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BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6,
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sizeof(struct nbd_request)),
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BPF_EXIT_INSN(),
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};
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struct bpf_load_program_attr load_attr = {
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.prog_type = BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE,
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.license = "GPL v2",
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.insns = program,
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.insns_cnt = sizeof(program) / sizeof(struct bpf_insn),
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.log_level = 2,
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};
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bpf_fd = bpf_load_program_xattr(&load_attr, error, sizeof(error));
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if (CHECK(bpf_fd < 0, "bpf_raw_tracepoint_writable load",
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"failed: %d errno %d\n", bpf_fd, errno))
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return;
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tp_fd = bpf_raw_tracepoint_open("nbd_send_request", bpf_fd);
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if (CHECK(tp_fd >= 0, "bpf_raw_tracepoint_writable open",
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"erroneously succeeded\n"))
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goto out_bpffd;
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close(tp_fd);
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out_bpffd:
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close(bpf_fd);
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}
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