As one can see below, program already attached in native mode. At least, ip link show indicated that. 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: dummy0: <BROA...
I found it very confusing that a program named xdpdump will use the tcpdump hook to dump packets, when there isn't any other XDP-prog already attached on the interfaces. I do like that the xdpdump program warns the end-user about this be...
pr_warn("Program was already attached to a dispatcher, " "and kernel doesn't support multiple attachments\n"); return libxdp_err(err); } prog_fd = xdp_multiprog__main_fd(mp); } else if (prog->prog_type != BPF_PROG_TYPE_XDP) { pr_warn("Can't test_run non-XDP programs\n")...
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The rest of the code glues all the pieces together to give a nice CLI experience that users can exploit to perform XDP program attaching/removal and the manipulation of the IP blacklist. For further details, please head to thesources. ...
The Linux kernel has a general framework that allows an eBPF program to be attached to any kernel function entry or exit point. Recently, this has been extended to allow attachment to another eBPF program. xdpdump uses this to gain access to the packet resources right before and after the ...
the XDP program using the `IFLA_XDP_EXPECTED_FD` feature with the `XDP_FLAGS_REPLACE` flag. For example, this affected XDP programs that were loaded using the `libxdp` library. This bug has been fixed. As a result, unloading an XDP program from Netronome network cards works as expected....
libxdp: Error attaching XDP program to ifindex 5: Operation not supportedlibxdp: XDP mode not supported; try using SKB modexsk_configure(): Failed to create xsk socket.eth_rx_queue_setup(): Failed to configure xdp socketFail to configure port 0 rx queuesrte_pmd_af_xdp_remov...
libxdp: Error attaching XDP program to ifindex 5: Operation not supportedlibxdp: XDP mode not supported; try using SKB modexsk_configure(): Failed to create xsk socket.eth_rx_queue_setup(): Failed to configure xdp socketFail to configure port 0 rx queuesrte_pmd_af_xdp_remove()...
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