實(shí)驗(yàn)二Linux下網(wǎng)路驅(qū)動(dòng)程式追蹤

1、實(shí)驗(yàn)二Linux下網(wǎng)路驅(qū)動(dòng)程式追蹤教師：助教：1998/10/19High Speed Network Lab.Department of Computer Information Science, NCTUOutline Why Linux ? Linux 核心的內(nèi)部 Linux 開機(jī)始末實(shí)驗(yàn)步驟Why Linux ? Free ! Compatible with System V & BSD UNIX Compliant to POSIX 1.0 Fast update ! Internet Powerful ! Pure 32-bit OS Candidate OS for em

2、bedded system Source code open ! Suitable for academic useLinux 核心內(nèi)部User Programs & ApplicationsProcessManagementMemoryManagementFile SystemDeviceControlNetworkingArchitectureDependentCodeMemoryManagerFS typesDeviceControlBlock DeviceNetworkSubsystemConnectivityTTY & DeviceaccessFiles &D

3、irectorysVitualMemoryConcurrencyMultitaskingApplication LevelApplication LevelKernel LevelKernel LevelKernel PartsFeatures ImplementedIF driversSoftware SupportHardware ControlHardware LevelHardware LevelCPURAMDisks & CDsConsole,Serial PortsNetworkInterfacesSystem callLinux 開機(jī)始末 Load the kernel

4、Probe & setup the hardware Create system process System initialization getty login process實(shí)驗(yàn)步驟安裝 Linux追蹤開機(jī)始末編譯核心設(shè)定Linux網(wǎng)路組態(tài)在kernel中追蹤 network driver安裝 Linux Where should I install it from ? Which distribution should I choose from ? Which version should I take ? How do I install it ? Does there e

5、xist any document ? /usr/doc追蹤Linux開機(jī)始末 Capture bootup sequence dmesg Shift + PgUp | PgDw syslogd Traverse /etc/initab /etc/rc.d/ Tools grep Microsoft Visio Studio - Edit - Find in files編譯核心 FTP, tar make config | menuconfig | xconfig Modules support Choose your adapter driver Choose TCP/IP protocol

6、 stack make dep, make clean, make zImage make modules, make modules_install move to /boot re-write boot sector (lilo -v -v -v)設(shè)定網(wǎng)路組態(tài) Internet 參數(shù) Network Interface Configuration ifconfig eth0 x.x.x.x netmask y.y.y.y broadcast z.z.z.z Routing table Configuration route add -net default gw 5

7、4 dev eth0 route add -net dev eth0追蹤kernel中的network driver Trace by debugger Trace by printing, record by logging klogd vs. syslogd Trigger network modules by “ping”log fileKernelRoutinesKlogdDaemonlog file/etc/syslogd.conflog file.SyslogdDaemon決定待測(cè)機(jī)器 Host IP= H, Netmask=M, Router=R far active host (IP address=F) ne