vcl: ldp support for ip_pktinfo

Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I3c15f38a4a3f5e92506059277948e7fca9cd8b55

1 files changed, 51 insertions, 43 deletions

diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h
index 81a6634a8a3..71a49ab3480 100644
--- a/src/vcl/vppcom.h
+++ b/src/vcl/vppcom.h
@@ -22,12 +22,12 @@
 #include <poll.h>
 #include <sys/epoll.h>
 
-/* *INDENT-OFF* */
+/* clang-format off */
+
 #ifdef __cplusplus
 extern "C"
 {
 #endif
-/* *INDENT-ON* */
 
 /*
  * VPPCOM Public API Definitions, Enums, and Data Structures
@@ -46,49 +46,56 @@ extern "C"
 #define VPPCOM_ENV_VPP_API_SOCKET           	"VCL_VPP_API_SOCKET"
 #define VPPCOM_ENV_VPP_SAPI_SOCKET		"VCL_VPP_SAPI_SOCKET"
 
-  typedef enum
-  {
-    VPPCOM_PROTO_TCP = 0,
-    VPPCOM_PROTO_UDP,
-    VPPCOM_PROTO_NONE,
-    VPPCOM_PROTO_TLS,
-    VPPCOM_PROTO_QUIC,
-    VPPCOM_PROTO_DTLS,
-    VPPCOM_PROTO_SRTP,
-  } vppcom_proto_t;
-
-  typedef enum
-  {
-    VPPCOM_IS_IP6 = 0,
-    VPPCOM_IS_IP4,
-  } vppcom_is_ip4_t;
+typedef enum vppcom_proto_
+{
+  VPPCOM_PROTO_TCP = 0,
+  VPPCOM_PROTO_UDP,
+  VPPCOM_PROTO_NONE,
+  VPPCOM_PROTO_TLS,
+  VPPCOM_PROTO_QUIC,
+  VPPCOM_PROTO_DTLS,
+  VPPCOM_PROTO_SRTP,
+} vppcom_proto_t;
+
+typedef enum
+{
+  VPPCOM_IS_IP6 = 0,
+  VPPCOM_IS_IP4,
+} vppcom_is_ip4_t;
+
+typedef struct vppcom_endpt_tlv_t_
+{
+  uint32_t data_type;
+  uint32_t data_len;
+  uint8_t data[0];
+} vppcom_endpt_tlv_t;
+
+typedef struct vppcom_endpt_t_
+{
+  uint8_t unused;		/**< unused */
+  uint8_t is_ip4;		/**< flag set if if ip is ipv4 */
+  uint8_t *ip;			/**< pointer to ip address */
+  uint16_t port;		/**< transport port */
+  uint64_t unused2;		/**< unused */
+  uint32_t app_tlv_len;		/**< length of app provided tlvs */
+  vppcom_endpt_tlv_t *app_tlvs;	/**< array of app provided tlvs */
+} vppcom_endpt_t;
 
 #define VCL_UDP_OPTS_BASE (VPPCOM_PROTO_UDP << 16)
 #define VCL_UDP_SEGMENT	  (VCL_UDP_OPTS_BASE + 0)
 
-  typedef struct vppcom_endpt_tlv_t_
-  {
-    uint32_t data_type;
-    uint32_t data_len;
-    union
-    {
-      /* data */
-      uint64_t value;
-      uint32_t as_u32[2];
-      uint16_t as_u16[4];
-      uint8_t as_u8[8];
-    };
-  } vppcom_endpt_tlv_t;
-
-  typedef struct vppcom_endpt_t_
-  {
-    uint8_t is_cut_thru;
-    uint8_t is_ip4;
-    uint8_t *ip;
-    uint16_t port;
-    uint64_t parent_handle;
-    vppcom_endpt_tlv_t app_data;
-  } vppcom_endpt_t;
+/* By convention we'll use 127 for IP since we don't support IP as protocol */
+#define VCL_IP_OPTS_BASE (127 << 16)
+#define VCL_IP_PKTINFO	 (VCL_IP_OPTS_BASE + 1)
+
+#define VCL_EP_APP_TLV_LEN(tlv_) (sizeof (vppcom_endpt_tlv_t) + tlv->data_len)
+#define VCL_EP_APP_TLV_POS(ep_, tlv_) ((void *)ep_->app_tlvs - (void *)tlv_)
+#define VCL_EP_APP_TLV_LEN_LEFT(ep_, tlv_)                                    \
+  (ep_->app_tlv_len - VCL_EP_APP_TLV_POS (ep_, tlv_))
+#define VCL_EP_NEXT_APP_TLV(ep_, tlv_)                                        \
+  (VCL_EP_APP_TLV_LEN (tlv_) < VCL_EP_APP_TLV_POS (ep_, tlv_) ? (             \
+       (vppcom_endpt_tlv_t *)((uint8_t *)tlv_ + VCL_EP_APP_TLV_LEN (tlv_)))   \
+                                                              : 0)
 
 typedef uint32_t vcl_session_handle_t;
 
@@ -167,6 +174,8 @@ typedef enum
   VPPCOM_ATTR_GET_DOMAIN,
   VPPCOM_ATTR_SET_ENDPT_EXT_CFG,
   VPPCOM_ATTR_SET_DSCP,
+  VPPCOM_ATTR_SET_IP_PKTINFO,
+  VPPCOM_ATTR_GET_IP_PKTINFO,
 } vppcom_attr_op_t;
 
 typedef struct _vcl_poll
@@ -299,11 +308,10 @@ extern int vppcom_session_get_error (uint32_t session_handle);
  */
 extern int vppcom_worker_is_detached (void);
 
-/* *INDENT-OFF* */
 #ifdef __cplusplus
 }
 #endif
-/* *INDENT-ON* */
+/* clang-format on */
 
 #endif /* included_vppcom_h */