Bug #6212 » 0001-one-extension-header.patch
| drivers/net/gtp.c | ||
|---|---|---|
| 937 | 937 |
static inline void gtp1_push_header(struct sk_buff *skb, struct pdp_ctx *pctx) |
| 938 | 938 |
{
|
| 939 | 939 |
int payload_len = skb->len; |
| 940 |
struct gtp1_header *gtp1; |
|
| 940 |
struct gtp1_header_long *gtp1; |
|
| 941 |
char ext_hdr[4] = { 0x01, 0x00, 0xff, 0x00}; /* extension header */
|
|
| 941 | 942 | |
| 942 |
gtp1 = skb_push(skb, sizeof(*gtp1)); |
|
| 943 |
gtp1 = skb_push(skb, sizeof(*gtp1) + sizeof(ext_hdr)); |
|
| 944 |
memset(gtp1, 0, sizeof(*gtp1) + sizeof(ext_hdr)); |
|
| 943 | 945 | |
| 944 | 946 |
/* Bits 8 7 6 5 4 3 2 1 |
| 945 | 947 |
* +--+--+--+--+--+--+--+--+ |
| ... | ... | |
| 951 | 953 |
gtp1->type = GTP_TPDU; |
| 952 | 954 |
gtp1->length = htons(payload_len); |
| 953 | 955 |
gtp1->tid = htonl(pctx->u.v1.o_tei); |
| 956 |
gtp1->next = 0x32; |
|
| 957 | ||
| 958 |
gtp1->flags |= GTP1_F_EXTHDR; |
|
| 959 | ||
| 960 |
memcpy(gtp1 + 1, ext_hdr, sizeof(ext_hdr)); |
|
| 954 | 961 | |
| 955 | 962 |
/* TODO: Support for extension header, sequence number and N-PDU. |
| 956 | 963 |
* Update the length field if any of them is available. |
