On 3/30/2021 9:00 AM, Raslan Darawsheh wrote:
Define new rte header for gtp PDU session container
based on RFC 38415-g30
Signed-off-by: Raslan Darawsheh <rasl...@nvidia.com>
---
lib/librte_net/rte_gtp.h | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/lib/librte_net/rte_gtp.h b/lib/librte_net/rte_gtp.h
index 6a6f9b238d..bfaae26535 100644
--- a/lib/librte_net/rte_gtp.h
+++ b/lib/librte_net/rte_gtp.h
@@ -61,6 +61,40 @@ struct rte_gtp_hdr_ext_word {
uint8_t next_ext; /**< Next Extension Header Type. */
} __rte_packed;
+/**
+ * Optional extension for GTP with next_ext set to 0x85
+ * defined based on RFC 38415-g30.
+ */
+__extension__
+struct rte_gtp_psc {
general consensus in other protocols seems having '_hdr' suffix in the struct
name, I can see this is extension but do you think does it make to add suffix?
+ uint8_t ext_hdr_len; /**< PDU ext hdr len in multiples of 4 bytes */
+ uint8_t type:4; /**< PDU type */
+ uint8_t qmp:1; /**< Qos Monitoring Packet */
+ union {
+ struct {
+ uint8_t snp:1; /**< Sequence number presence */
+ uint8_t spare_dl1:2; /**< spare down link bits */
+ };
+ struct {
+ uint8_t dl_delay_ind:1; /**< dl delay result presence */
+ uint8_t ul_delay_ind:1; /**< ul delay result presence */
+ uint8_t snp_ul1:1; /**< Sequence number presence ul */
+ };
+ };
+ union {
+ struct {
+ uint8_t ppp:1; /**< Paging policy presence */
+ uint8_t rqi:1; /**< Reflective Qos Indicator */
+ };
+ struct {
+ uint8_t n_delay_ind:1; /**< N3/N9 delay result presence
*/
+ uint8_t spare_ul2:1; /**< spare up link bits */
+ };
+ };
+ uint8_t qfi:6; /**< Qos Flow Identifier */
+ uint8_t data[0]; /**< data feilds */
+} __rte_packed;
+
/** GTP header length */
#define RTE_ETHER_GTP_HLEN \
(sizeof(struct rte_udp_hdr) + sizeof(struct rte_gtp_hdr))
