struct bpf_program bpf_filter;//过滤规则char bpf_filter_string[]="";bpf_u_int32 net_mask;//网络掩码bpf_u_int32 net_ip;//网络地址net_interface=pcap_lookupdev(error_content);//获得网络接口pcap_lookupnet(net_interface,&net_ip,&net_mask,error_content);//获得网络地址和网络掩码pcap_handle=...
bpf prog 可以通过 bpf_spin_lock / bpf_spin_unlock 访问 struct bpf_spin_lock 。 不允许读写 struct bpf_spin_lock lock; 属性。 为了使用 bpf_spin_lock 帮助函数,map value 的 BTF 信息必须是一个 struct,而且 struct bpf_spin_lock anyname; 属性需要在最外层。不允许将 bpf_spin_lock 内嵌到其它 ...
bpf中可以通过bpf_core_read获取结构体成员,所以通过task_struct是否可以逐步获取cgroup目录?答案是可以间接获取,无法直接获取。 bpf中通过task_struct可以获取到对应subgroup的knid,但是通过knid找到目录需要用户态来获取。 查找方法: 1)task_struct->cgroups->subsys[CGROUP_SUBSYS_COUNT]->cgroup->kn->id.id 其中sub...
* @real_num_rx_queues: Number of RX queues currently active in device * @xdp_prog: XDP sockets filter program pointer * @gro_flush_timeout: timeout for GRO layer in NAPI * @napi_defer_hard_irqs: If not zero, provides a counter that would * allow to avoid NIC hard IRQ, on busy ...
* fexit = a set of program to run after original function */ intarch_prepare_bpf_trampoline(void*image,structbtf_func_model*m,u32flags, intarch_prepare_bpf_trampoline(void*image,void*image_end, conststructbtf_func_model*m,u32flags, ...
} nbpf_filter; #endif struct ndpi_global_context { /* LRU caches */ /* NDPI_PROTOCOL_OOKLA */ int ookla_cache_is_global; struct ndpi_lru_cache *ookla_global_cache; /* NDPI_PROTOCOL_BITTORRENT */ struct ndpi_lru_cache *bittorrent_global_cache; /* NDPI_PROTOCOL_ZOOM */ struct ndpi_...
Compiling bpf object... Generating export types... Packing ebpf object and config into package.json... $sudo ecli run package.json Runing eBPF program... 运行这段程序后,可以通过查看 /sys/kernel/debug/tracing/trace_pipe 文件来查看 eBPF 程序的输出: ...
Structure that keeps a single BPF instuction; it is repeated 'ninsn' times according to the 'rpcap_filterbpf' header. More... #include <pcap-remote.h> Data Fields uint16code opcode of the instuction uint8jt relative offset to jump to in case of 'true' ...
Pointer to the event on which the read calls on this instance must wait. PUCHARbpfprogram UINTMinToCopy LARGE_INTEGERTimeOut intmode Working mode of the driver. See PacketSetMode() for details. LARGE_INTEGERNbytes Amount of bytes accepted by the filter when this instance is in statistical mode...
* This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in ...