イーサネット パケットを作成し、カーネル モジュールで送信する必要があります。誰かがこれを行うのを手伝ってくれますか?
dev_alloc_skb を使用して skb を作成する必要があると思います。次に、mac_ethernet を書き込み、データを挿入し、dev_queu_xmit を使用して送信する必要があります。
しかし、これが機能するかどうか、またはそれが正しく最も簡単な方法であるかどうかはわかりません。
よろしくお願いします
EDIT1：
int sendpacket ()
{
unsigned char dest[ETH_ALEN]={0x00,0x25,0x22,0x05,0xF3,0xF0};
unsigned char src[ETH_ALEN] = {0x90,0xE6,0xBA,0x48,0x7C,0x87};
struct sk_buff * skbt =alloc_skb(ETH_FRAME_LEN,GFP_KERNEL);
//skb_reserve(skb,ETH_FRAME_LEN);
dev_hard_header(skbt,dev_eth1,ETH_P_802_3,dest,src,dev_eth1->addr_len);
if(dev_queue_xmit(skbt)!=NET_XMIT_SUCCESS)
{
printk("Not send!!\n");
}
kfree_skb(skbt);
return 0;
}
> Dmesg command:
>
> 677.826933] Hello:I'm the hook module!!!! [ 677.826937] 2!!!! [ 677.826941] skb_under_panic: text:c0723608 len:14 put:14 head:f1843800 data:f18437f2 tail:0xf1843800 end:0xf1843e00 dev:<NULL> [ 677.826959]
> ------------[ cut here ]------------ [ 677.826961] kernel BUG at net/core/skbuff.c:146! [ 677.826964] invalid opcode: 0000 [#1] SMP [
> 677.826967] last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map [
> 677.826969] Modules linked in: sendpacket(+) bluetooth rfkill vfat fat fuse sunrpc cpufreq_ondemand acpi_cpufreq mperf ip6t_REJECT
> nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 uinput
> snd_hda_codec_atihdmi snd_hda_codec_realtek snd_hda_intel
> snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd
> soundcore atl1e snd_page_alloc iTCO_wdt iTCO_vendor_support r8169 mii
> i2c_i801 microcode asus_atk0110 pcspkr ata_generic pata_acpi
> usb_storage pata_marvell radeon ttm drm_kms_helper drm i2c_algo_bit
> i2c_core [last unloaded: sendpacket] [ 677.827003] [ 677.827003]
> Pid: 4780, comm: insmod Tainted: G W 2.6.35101 #7 P5QL
> PRO/P5QL PRO [ 677.827003] EIP: 0060:[<c070a192>] EFLAGS: 00210246
> CPU: 0 [ 677.827003] EIP is at skb_push+0x57/0x62 [ 677.827003] EAX:
> 00000088 EBX: c08f9fdc ECX: f156bf10 EDX: c093b4ca [ 677.827003] ESI:
> 00000000 EDI: f51ca000 EBP: f156bf38 ESP: f156bf0c [ 677.827003] DS:
> 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 677.827003] Process insmod
> (pid: 4780, ti=f156a000 task=f2b071a0 task.ti=f156a000) [ 677.827003]
> Stack: [ 677.827003] c093b4ca c0723608 0000000e 0000000e f1843800
> f18437f2 f1843800 f1843e00 [ 677.827003] <0> c08f9fdc f156bf64
> f156bf6a f156bf50 c0723608 00000001 c07235e5 f3b6c000 [ 677.827003]
> <0> 00835ff4 f156bf78 f7d640a8 f156bf6a f156bf64 00000006 48bae690
> 2500877c [ 677.827003] Call Trace: [ 677.827003] [<c0723608>] ?
> eth_header+0x23/0x93 [ 677.827003] [<c0723608>] ?
> eth_header+0x23/0x93 [ 677.827003] [<c07235e5>] ?
> eth_header+0x0/0x93 [ 677.827003] [<f7d640a8>] ?
> sendpacket+0x8f/0xb6 [sendpacket] [ 677.827003] [<f7d67000>] ?
> hook_init+0x0/0x46 [sendpacket] [ 677.827003] [<f7d67044>] ?
> hook_init+0x44/0x46 [sendpacket] [ 677.827003] [<c0401246>] ?
> do_one_initcall+0x4f/0x139 [ 677.827003] [<c0451e29>] ?
> blocking_notifier_call_chain+0x11/0x13 [ 677.827003] [<c046210c>] ?
> sys_init_module+0x7f/0x19b [ 677.827003] [<c040321f>] ?
> sysenter_do_call+0x12/0x28 [ 677.827003] Code: c0 85 f6 0f 45 de 53
> ff b0 a8 00 00 00 ff b0 a4 00 00 00 51 ff b0 ac 00 00 00 52 ff 70 50
> ff 75 04 68 ca b4 93 c0 e8 ad 4a 09 00 <0f> 0b 8d 65 f8 89 c8 5b 5e 5d
> c3 55 89 e5 56 53 0f 1f 44 00 00 [ 677.827116] EIP: [<c070a192>]
> skb_push+0x57/0x62 SS:ESP 0068:f156bf0c [ 677.827154] ---[ end trace
> dee1e3278503a581 ]---