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04013c3ca0
Add selftests to verify SOCK_OPS_GET_SK() and SOCK_OPS_GET_FIELD() correctly return NULL/zero when dst_reg == src_reg and is_fullsock == 0. Three subtests are included: - get_sk: ctx->sk with same src/dst register (SOCK_OPS_GET_SK) - get_field: ctx->snd_cwnd with same src/dst register (SOCK_OPS_GET_FIELD) - get_sk_diff_reg: ctx->sk with different src/dst register (baseline) Each BPF program uses inline asm (__naked) to force specific register allocation, reads is_fullsock first, then loads the field using the same (or different) register. The test triggers TCP_NEW_SYN_RECV via a TCP handshake and checks that the result is NULL/zero when is_fullsock == 0. Reviewed-by: Sun Jian <sun.jian.kdev@gmail.com> Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://patch.msgid.link/20260407022720.162151-3-jiayuan.chen@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .. | ||
| accounting | ||
| arch | ||
| bootconfig | ||
| bpf | ||
| build | ||
| certs | ||
| cgroup | ||
| counter | ||
| crypto | ||
| debugging | ||
| dma | ||
| docs | ||
| firewire | ||
| firmware | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| mm | ||
| net | ||
| objtool | ||
| pcmcia | ||
| perf | ||
| power | ||
| rcu | ||
| sched | ||
| sched_ext | ||
| scripts | ||
| sound | ||
| spi | ||
| testing | ||
| thermal | ||
| time | ||
| tracing | ||
| usb | ||
| verification | ||
| virtio | ||
| wmi | ||
| workqueue | ||
| writeback | ||
| Makefile | ||