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第一种方法是通过套接字,打开指定的网卡,然后使用recvmsg读取,实际过程需要需要将报文从内核区拷贝到用户区。第二种方法是使用packet_mmap,使用共享内存方式,在内核空间中分配一块内核缓冲区,然后用户空间程序调用mmap映射到用户空间。将接收到的skb拷贝到那块内核缓冲区中,这样用户空间的程序就可以直接读到捕获的数据...
(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic_arg, int *got_packet) { MpegEncContext *s = avctx->priv_data; AVFrame *pic; int i, ret; int chroma_h_shift, chroma_v_shift; av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_...
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE...
Packet Buffer Memory: 48 ByteSwitching Capacity: 1.0GbpsPoE Standard: IEEE 802.3afInput power: 13 WattsOutput power: 12.2 WattsPower Supply Type: 1/2+,3/6-,Mode A, End-SpanNetwork Protocol: IEEE 802.3i-10BASE-T, IEEE 802.3u: 100BASE-TX, IEEE 802.3x-Flow Control, IEEE 802.3af-Power ...
文档版本 01 (2022-02-22) 149 深信服下一代防火墙用户手册 策略 步骤1.进入[网络/地址转换/DNS Mapping]菜单,点击新增。 步骤2.在弹出的对话框中填写公网IP,域名等信息。本案例中的填写方法如下。 步骤3.点击保存,完成配置。此时内网用户访问即可以直接访问 到00。 文档版本 01 (2022-02-22) 150 深信服下...
HRP_M[FWA] profile type ips name profile_ips_pc HRP_M[FWA-profile-ips-profile_ips_pc] description profile for intranet users HRP_M[FWA-profile-ips-profile_ips_pc] capture-packet enable HRP_M[FWA-profile-ips-profile_ips_pc] signature-set name filter1 HRP_M[FWA-profile-ips-profile_ips_...
HRP_M[FWA] profile type ips name profile_ips_pc HRP_M[FWA-profile-ips-profile_ips_pc] description profile for intranet users HRP_M[FWA-profile-ips-profile_ips_pc] capture-packet enable HRP_M[FWA-profile-ips-profile_ips_pc] signature-set name filter1 HRP_M[FWA-profile-ips-profile_ips_...
388 Packet Filtering with Routing and Remote Access ... 389 Basic Firewall... 390 IP Packet Filtering...
Reliable data transfer protocol over a channel with bit errors and packet losses is rdt2.1. A. 正确 B. 错误 查看完整题目与答案 农夫山泉的广告语为农夫山泉有点甜。() A. 正确 B. 错误 查看完整题目与答案 某公司去新的区域开发市场属于产品开发战略。() A. 正确 B. 错误 查看完整...