如何在netbsd下修改网卡MAC地址

YGC

如题。。

IP与MAC被绑定了，不改上不了网咯。。

YGC

自己顶

YGC

google了一下午，发现freebsd和openbsd都可以用ifconfig去改变mac地址，唯独netbsd不可以。。


上不了网，烦死啦。:em11: :em11:

YGC

在网上找到了这样一段代码
mch.c

1. #include <sys/param.h>
   
2. #include <sys/systm.h>
   
3. #include <sys/time.h>
   
4. 
   
5. #include <net/if.h>
   
6. #include <net/if_ether.h>
   
7. #include <net/if_dl.h>
   
8. 
   
9. #include <sys/lkm.h>
   
10. #include <sys/kernel.h>
    
11. 
    
12. void generate_mac();               //losowo generowany MAC.
    
13. void print_mac(unsigned char *);         //wyswietlenie adresu MAC.
    
14. 
    
15. int mch_lkmentry(struct lkm_table *, int, int);      //Potrzebne
    
16. int mch_lkmload(struct lkm_table *, int);      //dla pracy
    
17. int mch_lkmunload(struct lkm_table *, int);      //modulu.
    
18. 
    
19. unsigned char old_mac[6];            //zapisujemy (najlepiej jak modul bedzie uruchamiany za I razem, wtedy zapisywany jest org. adr).
    
20. unsigned char new_mac[6] = { 0x00, 0x05, 0x2d, 0x02, 0x25, 0xfe };   <- tutaj nowy mac.         //przechowanie nowego.
    
21. struct ifnet *this = NULL;            //dla 'ifunit' - szukamy struktury 'ifnet' po nazwie urzadzenia.
    
22. 
    
23. MOD_MISC("CHANGE_MAC");               //INFO
    
24. 
    
25. void
    
26. generate_mac()
    
27. {
    
28.   struct timeval tv;               //Zapisujemy aktualny czas w sek. i milisek.
    
29. 
    
30.     microtime(&tv);               //j.w.
    
31. 
    
32.   long stime = tv.tv_sec;            
    
33.   long utime = tv.tv_usec;            
    
34. 
    
35. 
    
36. 
    
37. 
    
38.     new_mac[0] = 0;   
    
39.    stime = stime >> 8;
    
40.     new_mac[1] = stime & 0x000000ff;
    
41.    stime = stime >> 8;
    
42.     new_mac[2] = stime & 0x000000ff;
    
43.    stime = stime >> 8;
    
44.     new_mac[3] = stime & 0x000000ff;
    
45. 
    
46.    utime = utime >> 8;
    
47.     new_mac[4] = utime & 0x000000ff;
    
48.    utime = utime >> 8;
    
49.     new_mac[5] = utime & 0x000000ff;         //zapisanie wygenerowanego MAC w 'new_mac'.
    
50. }
    
51. 
    
52. void
    
53. print_mac(unsigned char *mac)
    
54. {
    
55.   if(mac)
    
56.   {
    
57.     int i;
    
58. 
    
59.     for(i = 0; i <=4; i++)
    
60.       printf("%02x:", mac[i]);
    
61.     printf("%02x\n", mac[5]);
    
62.   }
    
63. }
    
64. 
    
65. int
    
66. mch_lkmentry(struct lkm_table* lkmtp, int cmd, int ver)
    
67. {
    
68.   LKM_DISPATCH(lkmtp, cmd, ver, mch_lkmload, mch_lkmunload, lkm_nofunc);
    
69. }
    
70. 
    
71. int
    
72. mch_lkmload(struct lkm_table* lkmtp, int cmd)
    
73. {
    
74.   if(lkmexists(lkmtp))
    
75.     return(EEXIST);
    
76. 
    
77.   if(!(this = ifunit("rtk0"))) return(EOPNOTSUPP);   //szukamy rtk0
    
78.     //else generate_mac();            //i generujemy.
    
79. 
    
80.   memcpy(old_mac, LLADDR(this->if_sadl), (size_t)6);   //zapis starego(orginalnego) MAC.
    
81. 
    
82. 
    
83.   memcpy(LLADDR(this->if_sadl), new_mac, this->if_addrlen);
    
84. 
    
85. /* XXX: ew. to
    
86.   if_detach(this);               
    
87.   if_attach(this);               
    
88.   ether_ifattach(this, new_mac);         //ustawiamy adres i typ na ethernet.
    
89. */
    
90.   printf("\nNew MAC: "); print_mac(new_mac);      
    
91. 
    
92.   return 0;
    
93. }
    
94. 
    
95. int
    
96. mch_lkmunload(struct lkm_table *lkmtp, int cmd)
    
97. {
    
98.   if(this)
    
99.   {
    
100. 
     
101.     /* przywrocenie starego MAC */
     
102.     memcpy(LLADDR(this->if_sadl), old_mac, this->if_addrlen);
     
103. /*
     
104.     if_detach(this);               //Tak samo
     
105.     if_attach(this);               //jak wyzej
     
106.     ether_ifattach(this, old_mac);         //tylko ze starym MAC.
     
107. */
     
108.     printf("\nOld MAC: "); print_mac(old_mac);
     
109.   }
     
110. 
     
111.   return 0;
     
112. }

复制代码

Makefile:

1. 
   
2. KMOD= mac_ch
   
3. 
   
4. SRCS= mch.c
   
5. 
   
6. MAN= #noman
   
7. .include <bsd.kmod.mk>
   

复制代码

修改第20行，为我要的mac地址。并注释掉 <- tutaj nowy mac.     
修改第77行，rtk0为我的网卡gem0
make 通过。
生成几个.o文件。

运行modload mch.o
报错如下：

1. mch.o(.text+0x10): In function `generate_mac':
   
2. : relocation truncated to fit: R_PPC_REL24 microtime
   
3. mch.o(.text+0x9c): In function `print_mac':
   
4. : relocation truncated to fit: R_PPC_REL24 printf
   
5. mch.o(.text+0xb4): In function `print_mac':
   
6. : relocation truncated to fit: R_PPC_REL24 printf
   
7. mch.o(.text+0x128): In function `mch_lkmentry':
   
8. : relocation truncated to fit: R_PPC_REL24 lkmdispatch
   
9. mch.o(.text+0x15c): In function `mch_lkmentry':
   
10. : relocation truncated to fit: R_PPC_REL24 lkmdispatch
    
11. mch.o(.text+0x16c): In function `mch_lkmentry':
    
12. : relocation truncated to fit: R_PPC_REL24 lkm_nofunc
    
13. mch.o(.text+0x180): In function `mch_lkmentry':
    
14. : relocation truncated to fit: R_PPC_REL24 lkmdispatch
    
15. mch.o(.text+0x1b0): In function `mch_lkmload':
    
16. : relocation truncated to fit: R_PPC_REL24 lkmexists
    
17. mch.o(.text+0x1c8): In function `mch_lkmload':
    
18. : relocation truncated to fit: R_PPC_REL24 ifunit
    
19. mch.o(.text+0x248): In function `mch_lkmload':
    
20. : relocation truncated to fit: R_PPC_REL24 memcpy
    
21. mch.o(.text+0x254): In function `mch_lkmload':
    
22. : additional relocation overflows omitted from the output
    
23. modload: can't link `mch.o' creating `mch' bound to 0xd4b20000
    
24. YGC# modload mch.o |tee out.txt
    
25. mch.o(.text+0x10): In function `generate_mac':
    
26. : relocation truncated to fit: R_PPC_REL24 microtime
    
27. mch.o(.text+0x9c): In function `print_mac':
    
28. : relocation truncated to fit: R_PPC_REL24 printf
    
29. mch.o(.text+0xb4): In function `print_mac':
    
30. : relocation truncated to fit: R_PPC_REL24 printf
    
31. mch.o(.text+0x128): In function `mch_lkmentry':
    
32. : relocation truncated to fit: R_PPC_REL24 lkmdispatch
    
33. mch.o(.text+0x15c): In function `mch_lkmentry':
    
34. : relocation truncated to fit: R_PPC_REL24 lkmdispatch
    
35. mch.o(.text+0x16c): In function `mch_lkmentry':
    
36. : relocation truncated to fit: R_PPC_REL24 lkm_nofunc
    
37. mch.o(.text+0x180): In function `mch_lkmentry':
    
38. : relocation truncated to fit: R_PPC_REL24 lkmdispatch
    
39. mch.o(.text+0x1b0): In function `mch_lkmload':
    
40. : relocation truncated to fit: R_PPC_REL24 lkmexists
    
41. mch.o(.text+0x1c8): In function `mch_lkmload':
    
42. : relocation truncated to fit: R_PPC_REL24 ifunit
    
43. mch.o(.text+0x248): In function `mch_lkmload':
    
44. : relocation truncated to fit: R_PPC_REL24 memcpy
    
45. mch.o(.text+0x254): In function `mch_lkmload':
    
46. : additional relocation overflows omitted from the output
    
47. modload: can't link `mch.o' creating `mch' bound to 0xd4b24000

复制代码

YGC

附上上面代码的原始地址。
http://www.bsdguru.org/dyskusja/viewtopic.php?t=12313

gvim

http://mail-index.netbsd.org/tech-net/2001/01/
01/16:>>> Fw: Changing MAC addresses on ethernet interfaces?
似乎Jason R Thorpe已经给了补丁。
我对网络不是很熟悉，请熟悉的朋友验证下ioctl的方法。

i_gzj

楼主我用的是debian linux 我没有if_dl.h文件，要怎么办？安装什么包？