/*
*===========================================================================
* ipnet_nat_proxy_dns
*===========================================================================
* Description: NAT proxy for the DNS protocol.
* Parameters: newhdr - pointer to optionally write new IP header.
* appdata - pointer to application data.
* applen - pointer to length of application data.
* growspace - space available to extend application data.
* param - pointer to proxy parameters.
* newdata - pointer to pointer to new application data.
* Returns: 1 = Packet modified.
* 0 = Packet untouched.
* -1 = Drop packet.
*/
IP_PUBLIC int
ipnet_nat_proxy_dns(Ip_u8 *newhdr,
Ip_u8 *appdata,
int *applen,
int growspace,
Ipnet_nat_proxy_param *param,
Ip_u8 **newdata)
{
IP_STATIC int init = 0;
(void)newhdr;
/* Cannot handle fragments other than the first */
if (param->fragoff != 0)
return 0;
/* DNS proxy only applicable for NAT-PT */
if(param->natpt == IP_TRUE)
{
if (!init)
{
ipcom_list_init(&ipnet_nat_proxy_dns_list);
init = 1;
}
if (param->incoming == IP_FALSE)
{
return ipnet_nat_proxy_dns_request(appdata, applen, growspace, param, newdata);
}
else
{
return ipnet_nat_proxy_dns_reply(appdata, applen, growspace, param, newdata);
}
}
return 0;
}
/*
*===========================================================================
* ipcom_shellcmd_init
*===========================================================================
* Description:
* Parameters:
* Returns:
*
*/
IP_STATIC Ip_err
ipcom_shellcmd_init(void *unused)
{
(void)unused;
ipcom_list_init(&ipcom_shell_cmd_head);
return IPCOM_SUCCESS;
}
/*
*===========================================================================
* ipcom_shellalias_init
*===========================================================================
* Description:
* Parameters:
* Returns:
*
*/
IP_STATIC Ip_err
ipcom_shellalias_init(void *unused)
{
int i;
(void)unused;
ipcom_list_init(&ipcom_shellalias_head);
for (i = 0; ipcom_shellalias_config[i].name != IP_NULL; i++)
ipcom_shellalias_set(ipcom_shellalias_config[i].name, ipcom_shellalias_config[i].cmd);
return IPCOM_SUCCESS;
}
/*
*===========================================================================
* ipppp_work_init
*===========================================================================
* Description:
* Parameters:
* Returns:
*
*/
IP_STATIC Ip_err
ipppp_work_init(void *unused)
{
IPCOM_UNUSED_ARG(unused);
ipcom_list_init(&ipppp_work_queue);
ipcom_mutex_create(&ipppp_work_lock);
ipcom_sem_create(&ipppp_work_sem, 0);
return ipcom_proc_create("ipppp_work",
(Ipcom_proc_func)ipppp_work,
IPCOM_PROC_STACK_DEFAULT,
IP_NULL);
}
/*
*===========================================================================
* ipl2tp_start
*===========================================================================
* Description: Start L2TP daemon.
* Parameters:
* Returns:
*
*/
IP_PUBLIC Ip_err
ipl2tp_start(void)
{
Ip_u16 pw_list[] =
{
IPL2TP_ATTR_PW_TYPE_ETHERNET,
IPL2TP_ATTR_PW_TYPE_ETHERNET_VLAN
};
Ipl2tp_attrobj attr = IP_NULL;
Ipl2tp_attrobj tattr2 = IP_NULL;
Ipl2tp_attrobj sattr2 = IP_NULL;
Ipl2tp_attrobj tattr3 = IP_NULL;
Ipl2tp_attrobj sattr3 = IP_NULL;
Ip_u32 enable_v2;
Ip_u32 enable_v3;
ipl2tp_example_sessions = ipcom_hash_new((Ipcom_hash_obj_func)ipl2tp_example_obj_hash_key,
(Ipcom_hash_key_func)ipl2tp_example_obj_hash_key,
(Ipcom_hash_cmp_func)ipl2tp_example_cmp_key);
ipcom_list_init(&ipl2tp_example_fds);
/* Initialize */
ipl2tp_attr_strappend(&attr,
IPL2TP_ATTR_SET_HOST_NAME,
L2TP_HOST_NAME);
ipl2tp_attr_pappend(&attr,
IPL2TP_ATTR_SET_L2TP_WRITE_CALLBACK,
(void *)ipl2tp_l2tp_write);
ipl2tp_attr_iappend(&attr,
IPL2TP_ATTR_SET_ENABLE_OUTGOING,
IPL2TP_MIB_YES);
#if L2TP_VERSION_2_ENABLE == TRUE
enable_v2 = IPL2TP_MIB_YES;
#else
enable_v2 = IPL2TP_MIB_NO;
#endif
ipl2tp_attr_iappend(&attr,
IPL2TP_ATTR_SET_ENABLE_L2TP_V2,
enable_v2);
#if L2TP_VERSION_3_ENABLE == TRUE
enable_v3 = IPL2TP_MIB_YES;
#else
enable_v3 = IPL2TP_MIB_NO;
#endif
ipl2tp_attr_iappend(&attr,
IPL2TP_ATTR_SET_ENABLE_L2TP_V3,
enable_v3);
ipl2tp_attr_pappend(&tattr2,
IPL2TP_TATTR_SET_STATUS_CALLBACK,
(void *)ipl2tp_example_tstatus_v2);
ipl2tp_attr_pappend(&tattr3,
IPL2TP_TATTR_SET_STATUS_CALLBACK,
(void *)ipl2tp_example_tstatus_v3);
ipl2tp_attr_vappend(&tattr3,
IPL2TP_TATTR_SET_LOCAL_PSEUDOWIRE_CAPABILITIES_LIST,
(void *)pw_list,
sizeof(pw_list));
ipl2tp_attr_pappend(&sattr2,
IPL2TP_SATTR_SET_STATUS_CALLBACK,
(void *)ipl2tp_example_sstatus_v2);
ipl2tp_attr_pappend(&sattr2,
IPL2TP_SATTR_SET_DATA_CALLBACK,
(void *)ipl2tp_ppp_data_cb);
ipl2tp_attr_pappend(&sattr3,
IPL2TP_SATTR_SET_STATUS_CALLBACK,
(void *)ipl2tp_example_sstatus_v3);
ipl2tp_attr_iappend(&sattr3,
IPL2TP_SATTR_SET_PSEUDOWIRE_TYPE,
IPL2TP_ATTR_PW_TYPE_ETHERNET_VLAN);
ipl2tp_api_open(attr, tattr2, tattr3, sattr2, sattr3);
ipl2tp_attr_delete(&attr);
ipl2tp_attr_delete(&tattr2);
ipl2tp_attr_delete(&sattr2);
ipl2tp_attr_delete(&tattr3);
ipl2tp_attr_delete(&sattr3);
/* Spawn new daemon process */
return ipcom_proc_acreate("l2tps", ipl2tps, IP_NULL, IP_NULL);
}
