diff mbox series

[bpf-next,v1,10/13] bpf: net_sched: Allow writing to more Qdisc members

Message ID 20241213232958.2388301-11-amery.hung@bytedance.com (mailing list archive)
State Changes Requested
Delegated to: BPF
Headers show
Series bpf qdisc | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next, async
netdev/apply fail Patch does not apply to bpf-next-0
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bpf/vmtest-bpf-net-VM_Test-13 success Logs for s390x-gcc / build-release
bpf/vmtest-bpf-net-VM_Test-6 success Logs for aarch64-gcc / test (test_maps, false, 360) / test_maps on aarch64 with gcc
bpf/vmtest-bpf-net-VM_Test-12 success Logs for s390x-gcc / build / build for s390x with gcc
bpf/vmtest-bpf-net-VM_Test-16 success Logs for s390x-gcc / test (test_verifier, false, 360) / test_verifier on s390x with gcc
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bpf/vmtest-bpf-net-VM_Test-22 success Logs for x86_64-gcc / test (test_maps, false, 360) / test_maps on x86_64 with gcc
bpf/vmtest-bpf-net-VM_Test-25 success Logs for x86_64-gcc / test (test_progs_no_alu32_parallel, true, 30) / test_progs_no_alu32_parallel on x86_64 with gcc
bpf/vmtest-bpf-net-VM_Test-26 success Logs for x86_64-gcc / test (test_progs_parallel, true, 30) / test_progs_parallel on x86_64 with gcc
bpf/vmtest-bpf-net-VM_Test-27 success Logs for x86_64-gcc / test (test_verifier, false, 360) / test_verifier on x86_64 with gcc
bpf/vmtest-bpf-net-VM_Test-28 success Logs for x86_64-gcc / veristat-kernel / x86_64-gcc veristat_kernel
bpf/vmtest-bpf-net-VM_Test-29 fail Logs for x86_64-gcc / veristat-meta / x86_64-gcc veristat_meta
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bpf/vmtest-bpf-net-VM_Test-39 success Logs for x86_64-llvm-18 / build-release / build for x86_64 with llvm-18-O2
bpf/vmtest-bpf-net-VM_Test-40 success Logs for x86_64-llvm-18 / test (test_maps, false, 360) / test_maps on x86_64 with llvm-18
bpf/vmtest-bpf-net-VM_Test-44 success Logs for x86_64-llvm-18 / test (test_verifier, false, 360) / test_verifier on x86_64 with llvm-18
bpf/vmtest-bpf-net-VM_Test-45 success Logs for x86_64-llvm-18 / veristat-kernel
bpf/vmtest-bpf-net-VM_Test-46 success Logs for x86_64-llvm-18 / veristat-meta
bpf/vmtest-bpf-net-VM_Test-7 success Logs for aarch64-gcc / test (test_progs, false, 360) / test_progs on aarch64 with gcc
bpf/vmtest-bpf-net-VM_Test-8 success Logs for aarch64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on aarch64 with gcc
bpf/vmtest-bpf-net-VM_Test-15 success Logs for s390x-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on s390x with gcc
bpf/vmtest-bpf-net-VM_Test-23 success Logs for x86_64-gcc / test (test_progs, false, 360) / test_progs on x86_64 with gcc
bpf/vmtest-bpf-net-VM_Test-24 success Logs for x86_64-gcc / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with gcc
bpf/vmtest-bpf-net-VM_Test-41 success Logs for x86_64-llvm-18 / test (test_progs, false, 360) / test_progs on x86_64 with llvm-18
bpf/vmtest-bpf-net-VM_Test-42 success Logs for x86_64-llvm-18 / test (test_progs_cpuv4, false, 360) / test_progs_cpuv4 on x86_64 with llvm-18
bpf/vmtest-bpf-net-VM_Test-43 success Logs for x86_64-llvm-18 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-18
bpf/vmtest-bpf-net-PR fail PR summary
bpf/vmtest-bpf-net-VM_Test-14 success Logs for s390x-gcc / test (test_progs, false, 360) / test_progs on s390x with gcc

Commit Message

Amery Hung Dec. 13, 2024, 11:29 p.m. UTC 
Allow bpf qdisc to write to Qdisc->limit and Qdisc->q.qlen.

Signed-off-by: Amery Hung <amery.hung@bytedance.com>
---
 net/sched/bpf_qdisc.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/net/sched/bpf_qdisc.c b/net/sched/bpf_qdisc.c
index 3901f855effc..1caa9f696d2d 100644
--- a/net/sched/bpf_qdisc.c
+++ b/net/sched/bpf_qdisc.c
@@ -89,6 +89,12 @@  static int bpf_qdisc_qdisc_access(struct bpf_verifier_log *log,
 	size_t end;
 
 	switch (off) {
+	case offsetof(struct Qdisc, limit):
+		end = offsetofend(struct Qdisc, limit);
+		break;
+	case offsetof(struct Qdisc, q) + offsetof(struct qdisc_skb_head, qlen):
+		end = offsetof(struct Qdisc, q) + offsetofend(struct qdisc_skb_head, qlen);
+		break;
 	case offsetof(struct Qdisc, qstats) ... offsetofend(struct Qdisc, qstats) - 1:
 		end = offsetofend(struct Qdisc, qstats);
 		break;