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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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#include <uapi/linux/if_ether.h>#include <net/dst_metadata.h>#include <linux/netdevice.h>#include <uapi/linux/ipv6.h>#include <net/udp_tunnel.h>#include <uapi/linux/udp.h>#include <uapi/linux/ip.h>#include <linux/string.h>#include <linux/types.h>#include <linux/bits.h>
#define PFCP_PORT 8805
/* PFCP protocol header */struct pfcphdr { u8 flags; u8 message_type; __be16 message_length;};
/* PFCP header flags */#define PFCP_SEID_FLAG BIT(0)#define PFCP_MP_FLAG BIT(1)
#define PFCP_VERSION_MASK GENMASK(4, 0)
#define PFCP_HLEN (sizeof(struct udphdr) + sizeof(struct pfcphdr))
/* PFCP node related messages */struct pfcphdr_node { u8 seq_number[3]; u8 reserved;};
/* PFCP session related messages */struct pfcphdr_session { __be64 seid; u8 seq_number[3];#ifdef __LITTLE_ENDIAN_BITFIELD u8 message_priority:4, reserved:4;#elif defined(__BIG_ENDIAN_BITFIELD) u8 reserved:4, message_priority:4;#else#error "Please fix <asm/byteorder>"#endif};
struct pfcp_metadata { u8 type; __be64 seid;} __packed;
enum { PFCP_TYPE_NODE = 0, PFCP_TYPE_SESSION = 1,};
#define PFCP_HEADROOM (sizeof(struct iphdr) + sizeof(struct udphdr) + \ sizeof(struct pfcphdr) + sizeof(struct ethhdr))#define PFCP6_HEADROOM (sizeof(struct ipv6hdr) + sizeof(struct udphdr) + \ sizeof(struct pfcphdr) + sizeof(struct ethhdr))
static inline struct pfcphdr *pfcp_hdr(struct sk_buff *skb){ return (struct pfcphdr *)(udp_hdr(skb) + 1);}
static inline struct pfcphdr_node *pfcp_hdr_node(struct sk_buff *skb){ return (struct pfcphdr_node *)(pfcp_hdr(skb) + 1);}
static inline struct pfcphdr_session *pfcp_hdr_session(struct sk_buff *skb){ return (struct pfcphdr_session *)(pfcp_hdr(skb) + 1);}
static inline bool netif_is_pfcp(const struct net_device *dev){ return dev->rtnl_link_ops && !strcmp(dev->rtnl_link_ops->kind, "pfcp");}
#endif