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git-svn-id: http://svn.eurecom.fr/openair4G/trunk@6294 818b1a75-f10b-46b9-bf7c-635c3b92a50f

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This commit is contained in:
Lionel Gauthier
2014-12-19 09:27:01 +00:00
parent 5ebf096dbe
commit 0fec28b6e9
1 changed files with 18 additions and 16 deletions
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openair-cn/GTPV1-U/GTPUAH/xt_GTPUAH.c
+18 -16
View File
@@ -11,7 +11,6 @@
*/
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/skbuff.h>
@@ -49,8 +48,11 @@ MODULE_DESCRIPTION("GTPu Data Path extension on netfilter");
static char* _gtpuah_nf_inet_hook_2_string(int nf_inet_hookP);
static void _gtpuah_print_hex_octets(unsigned char* data_pP, unsigned short sizeP);
static void _gtpuah_tg4_add(struct sk_buff *old_skb_pP, const struct xt_action_param *par_pP);
static unsigned int gtpuah_tg4(struct sk_buff *skb_pP, const struct xt_action_param *par_pP);
#ifdef WITH_IPV6
static void _gtpuah_tg6_add(struct sk_buff *old_skb_pP, const struct xt_action_param *par_pP);
static unsigned int gtpuah_tg6(struct sk_buff *skb_pP, const struct xt_action_param *par_pP);
#endif
static unsigned int gtpuah_tg4(struct sk_buff *skb_pP, const struct xt_action_param *par_pP);
static int __init gtpuah_tg_init(void);
static void __exit gtpuah_tg_exit(void);
//-----------------------------------------------------------------------------
@@ -105,7 +107,6 @@ struct gtpuhdr {
(uint8_t)((addr & 0x00FF0000) >> 16), \
(uint8_t)((addr & 0xFF000000) >> 24)
//-----------------------------------------------------------------------------
static void (*ip_local_deliver_fn_ptr)(struct sk_buff *skb);
static char _gtpuah_print_buffer[GTPUAH_2_PRINT_BUFFER_LEN];
INT_MODULE_PARM(tunnel_local, 0);
MODULE_PARM_DESC(tunnel_local, "Act as a boolean, tels if the S1U tunnel(s) are both start/end local");
@@ -182,6 +183,14 @@ _gtpuah_print_hex_octets(unsigned char* data_pP, unsigned short sizeP) {
pr_info("%s",_gtpuah_print_buffer);
}
#ifdef WITH_IPV6
//-----------------------------------------------------------------------------
static void
_gtpuah_tg6_add(struct sk_buff *old_skb_pP, const struct xt_action_param *par_pP) {
//-----------------------------------------------------------------------------
}
#endif
//-----------------------------------------------------------------------------
static void
_gtpuah_tg4_add(struct sk_buff *old_skb_pP, const struct xt_action_param *par_pP) {
@@ -225,7 +234,7 @@ _gtpuah_tg4_add(struct sk_buff *old_skb_pP, const struct xt_action_param *par_pP
new_skb_p = alloc_skb(headroom_reqd + orig_iplen, GFP_ATOMIC);
if (new_skb_p == NULL) {
pr_info("GTPUAH: skb_copy_expand returned NULL\n");
pr_info("GTPUAH: alloc_skb returned NULL\n");
return;
}
if (skb_linearize(new_skb_p) < 0) {
@@ -388,6 +397,7 @@ gtpuah_tg6(struct sk_buff *skb_pP, const struct xt_action_param *par_pP) {
}
if (tgi_p->action == PARAM_GTPUAH_ACTION_ADD) {
_gtpuah_tg6_add(skb_pP, par_pP);
return NF_DROP; // TODO
}
return NF_ACCEPT;
@@ -415,9 +425,6 @@ gtpuah_tg4(struct sk_buff *skb_pP, const struct xt_action_param *par_pP) {
static int
__init gtpuah_tg_init(void) {
//-----------------------------------------------------------------------------
char *name = "ip_local_deliver";
unsigned long addr = 0L;
pr_info("GTPUAH: Initializing module (KVersion: %d)\n", KVERSION);
pr_info("GTPUAH: Copyright Polaris Networks 2010-2011\n");
pr_info("GTPUAH: Modified by EURECOM Lionel GAUTHIER 2014\n");
@@ -426,19 +433,14 @@ __init gtpuah_tg_init(void) {
#else
pr_info("GTPURH: IPv4 only enabled\n");
#endif
addr = kallsyms_lookup_name(name);
ip_local_deliver_fn_ptr = addr;
return xt_register_targets(gtpuah_tg_reg, ARRAY_SIZE(gtpuah_tg_reg));
}
static void __exit gtpuah_tg_exit(void)
{
//-----------------------------------------------------------------------------
static void
__exit gtpuah_tg_exit(void) {
//-----------------------------------------------------------------------------
xt_unregister_targets(gtpuah_tg_reg, ARRAY_SIZE(gtpuah_tg_reg));
#if defined(WITH_IPV6)
pr_info("GTPURH: IPv4/IPv6 enabled\n");
#else
pr_info("GTPURH: IPv4 only enabled\n");
#endif
pr_info("GTPUAH: Unloading module\n");
}