socketethpip
① htons和ETH_P_IP是在那個頭文件里定義的
Linux/include/linux/byteorder/generic.h
Linux/include/uapi/linux/if_ether.h
在http://lxr.free-electrons.com/ident 里可以查到
② 怎麼提高下面代碼中socket的發包速率
#!/usr/bin/python
import socket
from scapy.all import *
import hack_arp
import ip_account
import random
import
import ssh_cmd
def udp_send_rcv(local_mac,local_addr,local_port,gw_mac,remote_addr,remote_port,txt,verbose = False) :
eth = Ether(dst=gw_mac,src=local_mac);
ip = IP(dst=remote_addr,src=local_addr);
udp = UDP(sport = local_port , dport = remote_port);
p = eth/ip/udp/txt ;
d = srp1(p,timeout=5);
if verbose == True :
d.show();
return p,d ;
#sendp(p);
def udp_send(sk,pkt):
#sk.sendto(str(pkt),(pkt['IP'].dst,pkt['UDP'].dport));
sk.send(str(pkt));
def main_test(pkt_num=1000,verbose = False,fast_mode=True) :
arp_group = {} ;
ip_header_map = {} ;
for i in range(2,201) :
gw_mac = hack_arp.get_gateway_hw(hack_arp.get_gateway_ip()) ;
ip = "192.168.31."+str(i);
mac = "be:ef:e5:1e:89:"+hex(i)[2:];
eth = Ether(dst=gw_mac);
ip_header = IP(dst = "10.237.100.9",src = ip);
udp_header = UDP(sport = 9000, dport = 9999);
ip_header_map[ip] = .deep(eth/ip_header/udp_header) ;
score = {} ;
cmp_txt = 'z'*1500 ;
if fast_mode == True :
try:
#s = socket.socket(socket.PF_PACKET, socket.SOCK_RAW)
s = socket.socket(socket.PF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_IP|ETH_P_ARP|ETH_P_ALL))
#s = socket.socket(socket.AF_INET, socket.SOCK_RAW)
except socket.error , msg:
print 'Socket could not be created. Error Code : ' + str(msg[0]) + ' Message ' + msg[1]
sys.exit()
# tell kernel not to put in headers, since we are providing it
#s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
#s.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
s.bind(("eth0",0));
s.setblocking(0);
for i in range(pkt_num) :
index = random.randint(2,200);
local_addr = "192.168.31."+str(index) ;
#txt = str(i)[0] * random.randint(10,1300);
txt = cmp_txt[0:100];
udp_send(s,ip_header_map[local_addr]/txt);
if not score.has_key(local_addr) :
score[local_addr] = (0,0,0,0);
score[local_addr] = (score[local_addr][0]+len(txt)+28,score[local_addr][1]+1,score[local_addr][2]+len(txt)+28+7,score[local_addr][3]+1);
else :
for i in range(pkt_num) :
index = random.randint(2,200);
local_addr = "192.168.31."+str(index) ;
local_port = 9000 ;
local_mac = "be:ef:e5:1e:89:"+hex(index)[2:] ;
gw_mac = "8C:BE:BE:10:05:88" ;
remote_addr = "10.237.100.9" ;
remote_port = 9999 ;
txt = cmp_txt[0:100];
p,d = udp_send_rcv(local_mac,local_addr,local_port,gw_mac,remote_addr,remote_port,str(index)+" send msg "+txt,verbose=verbose);
if not score.has_key(local_addr) :
score[local_addr] = (0,0,0,0);
print score[local_addr]
if verbose == True :
p.show();
d.show();
#score[local_addr] = (score[local_addr][0]+1,score[local_addr][1]+len(p['Raw'].load)+28,score[local_addr][2]+1,score[local_addr][3]+d['IP'].len);
score[local_addr] = (score[local_addr][0]+len(p['Raw'].load)+28,score[local_addr][1]+1,score[local_addr][2]+d['IP'].len,score[local_addr][3]+1);
if verbose == True :
print score ;
res = ip_account.ip_account();
if verbose == True :
print res ;
if_fail = 0 ;
fail_msg = "";
for src in score :
if not res.has_key(src) :
res[src] = (0,0,0,0);
if score[src] == res[src] :
print src + ": matched."
else :
if_fail = 1 ;
fail_msg = fail_msg + src + ": dismatched."+ str(score[src])+":"+ str(res[src]) + ";";
print "error:"
print src + ": dismatched."+ str(score[src])+":"+ str(res[src]);
if if_fail == 1 :
print "failed."
return if_fail,fail_msg
#tcp_link("192.168.31.171",9102,"192.168.31.98",9999);
if __name__=="__main__":
cmd = "" ;
#for i in range(2,201) :
# ip = "192.168.31."+str(i);
# #mac = "be:ef:e5:1e:89:"+hex(i)[2:];
# mac = "f8:b1:56:e3:12:60" ;
# cmd = "arp -s " + ip + " " + mac ;
# ssh_cmd.ssh_cmd("192.168.31.1","xxxxxx",cmd);
fail_table = {} ;
for i in range(1000) :
if_fail,fail_msg = main_test(pkt_num = 100000,verbose=True)
if if_fail == 1 :
fail_table[i] = fail_msg ;
print fail_table ;
③ python 怎麼安裝socketserver
如果是工具包的話可以先安裝pip ，一般python 中會有自帶的較低版本的pip，在配置環境變數的時候把Scripts文件夾路徑加進去就可以使用pip了。
用pip install 工具包名
這個命令就可以了
④ linux下創建socket時如何實現指定網口
原理上只有 raw_socket 應該設置網口，正常的 socket 會根據路由來選擇出口。
如果需要指定網口，需要設置 SO_BINDTODEVICE，步驟如下：
填寫結構體 struct ifreq ifr 的 ifr.ifr_name 為指定的網口，如 "eth1"
setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, (void *)&ifr, sizeof(ifr))
另外，如果只是需要進行測試，不防直接構包，用 libpcap 等庫來進行發送。而不要用系統的 socket 庫來發送。
⑤ 能否通過socket獲取本機IP地址，子網掩碼，或者是網卡名稱
可以實現的，使用ioctl函數，加上想獲得的選項即可。
正好手頭有個類似的例子：
=======================================================
#include <stdio.h>#include <sys/types.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <net/if_arp.h>
#include <arpa/inet.h>
#include <unistd.h>
#define MAXINTERFACES 16
int main(int argc, char **argv){
register int fd, interface, retn = 0;
struct ifreq buf[MAXINTERFACES];
struct arpreq arp;
struct ifconf ifc;
char mac[32] = "";
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) >= 0) { ifc.ifc_len = sizeof buf;
ifc.ifc_buf = (caddr_t) buf;
if (!ioctl(fd, SIOCGIFCONF, (char *) &ifc)) {
interface = ifc.ifc_len / sizeof(struct ifreq);
printf("interface num is interface=%d\n\n", interface);
while (interface-- > 0) {
printf("net device %s\n", buf[interface].ifr_name);
/*Jugde whether the net card status is promisc */
if (!(ioctl(fd, SIOCGIFFLAGS, (char *) &buf[interface]))) { if (buf[interface].ifr_flags & IFF_PROMISC) {
printf("the interface is PROMISC");
return 0;
}
} else {
char str[256] = "";
sprintf(str, "cpm: ioctl device %s",buf[interface].ifr_name);
perror(str);
}
/*Jugde whether the net card status is up */ if (buf[interface].ifr_flags & IFF_UP) {
printf("the interface status is UP\n");
} else {
printf("the interface status is DOWN\n");
}
/*Get IP of the net card */ if (!(ioctl(fd, SIOCGIFADDR, (char *) &buf[interface]))) {
printf("IP address is:");
printf("%s\n", inet_ntoa(((struct sockaddr_in*) (&buf[interface].ifr_addr))->sin_addr));
} else {
char str[256] = "";
sprintf(str, "cpm: ioctl device %s",buf[interface].ifr_name);
perror(str);
}
/*Get HW ADDRESS of the net card */ if (!(ioctl(fd, SIOCGIFHWADDR, (char *) &buf[interface]))) {
printf("HW address is:");
sprintf(mac, "%02x%02x%02x%02x%02x%02x",
(unsigned char) buf[interface].ifr_hwaddr.sa_data[0],
(unsigned char) buf[interface].ifr_hwaddr.sa_data[1],
(unsigned char) buf[interface].ifr_hwaddr.sa_data[2],
(unsigned char) buf[interface].ifr_hwaddr.sa_data[3],
(unsigned char) buf[interface].ifr_hwaddr.sa_data[4],
(unsigned char) buf[interface].ifr_hwaddr.sa_data[5]); // 利用sprintf轉換成char *
printf("%s\n", mac);
printf("\n");
}
else {
char str[256];
sprintf(str, "cpm: ioctl device %s",buf[interface].ifr_name);
perror(str);
}
} //end of while
} else
perror("cpm: ioctl");
} else
perror("cpm: socket");
close(fd);
return retn;
}
==============================================
輸出：
[root@temp]$./deleteme interface num is interface=2
net device eth0the interface status is UP
IP address is:10.6.15.102
HW address is:005056a44485
net device lothe interface status is UP
IP address is:127.0.0.1
HW address is:000000000000
⑥ 解析IP數據包。下面的代碼放在VC++裡面運行時，有一處錯誤，不知道該怎麼改過來。
#include <stdio.h>#include <stdlib.h>#include <sys/socket.h>#include <linux/if_ether.h>#include <net/ethernet.h>#include <errno.h>#include <netinet/tcp.h>#include <netinet/udp.h>
包含的這些文件你確定你都有么？
另外，你只說有一處錯誤，不告訴是什麼錯誤
你這程序里很多東西根本是別人機器不可能有的東西，根本不可能看出來。
問問題還搞的自己跟個大爺一樣，代碼一貼了事，網上的人都欠你的？
不吐不快
⑦ linux伺服器怎麼安裝pip
1、先說一下什麼是pip
pip 是「A tool for installing and managing Python packages.」，也就是說pip是python的軟體安裝工具
2、下面介紹怎麼在linux下安裝pip
下載pip到/usr/local/src
# cd /usr/local/src
# wget "https://pypi.python.org/packages/source/p/pip/pip-1.5.4.tar.gz#md5=" --no-check-certificate
如果提示：-bash: wget: command not found
那麼安裝wget，執行如下：
# yum -y install wget
解奪安裝pip
# tar -xzvf pip-1.5.4.tar.gz
# cd pip-1.5.4
# python setup.py install
如果安裝報下面的錯：
Traceback (most recent call last):
File "setup.py", line 6, in <mole>
from setuptools import setup, find_packages
ImportError: No mole named setuptools
那麼就要先安裝setuptools包
(1)下載setuptools包
# wget http://pypi.python.org/packages/source/s/setuptools/setuptools-2.0.tar.gz
(2)解壓setuptools包
# tar zxvf setuptools-2.0.tar.gz
# cd setuptools-2.0
(3)編譯setuptools
# python setup.py build
(4)開始執行setuptools安裝
# python setup.py install
安裝完成setuptools包後，在重新執行：
# cd /usr/local/src/pip-1.5.4
# python setup.py install
至此pip安裝完成
3、linux下pip使用參數
# pip --help
Usage:
pip <command> [options]
Commands:
install Install packages.
uninstall Uninstall packages.
freeze Output installed packages in requirements format.
list List installed packages.
show Show information about installed packages.
search Search PyPI for packages.
wheel Build wheels from your requirements.
zip DEPRECATED. Zip indivial packages.
unzip DEPRECATED. Unzip indivial packages.
bundle DEPRECATED. Create pybundles.
help Show help for commands.
General Options:
-h, --help Show help.
-v, --verbose Give more output. Option is additive, and can be used up to 3 times.
-V, --version Show version and exit.
-q, --quiet Give less output.
--log-file <path> Path to a verbose non-appending log, that only logs failures. This log is active by default at /root/.pip/pip.log.
--log <path> Path to a verbose appending log. This log is inactive by default.
--proxy <proxy> Specify a proxy in the form [user:passwd@]proxy.server:port.
--timeout <sec> Set the socket timeout (default 15 seconds).
--exists-action <action> Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup.
--cert <path> Path to alternate CA bundle.