criu: define constants for c/r of BPF maps

This commit defines constants and includes necessary headers to c/r
BPF maps

Source files modified:

* magic.h - Defining BPFMAP_FILE_MAGIC and BPFMAP_DATA_MAGIC

* image-desc.h - Defining CR_FD_BPFMAP_FILE and CR_FD_BPFMAP_DATA

* image-desc.c - Create new entries for bpfmap-file and bpfmap-data
in CRIU's file descriptor set

* protobuf-desc.h - Defining PB_BPFMAP_FILE and PB_BPFMAP_DATA

* protobuf-desc.c - Including headers for BPF map protobuf images

Signed-off-by: Abhishek Vijeev <abhishek.vijeev@gmail.com>

criu/image-desc.c

@@ -104,6 +104,8 @@ struct cr_fd_desc_tmpl imgset_template[CR_FD_MAX] = {
 	FD_ENTRY(FILES,		"files"),
 	FD_ENTRY(TIMENS,	"timens-%u"),
 	FD_ENTRY(PIDNS,		"pidns-%u"),
+	FD_ENTRY_F(BPFMAP_FILE,	"bpfmap-file", O_NOBUF),
+	FD_ENTRY_F(BPFMAP_DATA,	"bpfmap-data", O_NOBUF),
 
 	[CR_FD_STATS] = {
 		.fmt	= "stats-%s",

criu/include/image-desc.h

@@ -68,6 +68,8 @@ enum {
 	CR_FD_FILE_LOCKS,
 	CR_FD_SECCOMP,
 	CR_FD_MEMFD_INODE,
+	CR_FD_BPFMAP_FILE,
+	CR_FD_BPFMAP_DATA,
 	_CR_FD_GLOB_TO,
 
 	CR_FD_TMPFS_IMG,

criu/include/magic.h

@@ -97,6 +97,8 @@
 #define MEMFD_INODE_MAGIC	0x48453499 /* Dnipro */
 #define TIMENS_MAGIC		0x43114433 /* Beslan */
 #define PIDNS_MAGIC		0x61157326 /* Surgut */
+#define BPFMAP_FILE_MAGIC	0x57506142 /* Alapayevsk */
+#define BPFMAP_DATA_MAGIC	0x64324033 /* Arkhangelsk */
 
 #define IFADDR_MAGIC		RAW_IMAGE_MAGIC
 #define ROUTE_MAGIC		RAW_IMAGE_MAGIC

criu/include/protobuf-desc.h

@@ -67,6 +67,8 @@ enum {
 	PB_IMG_STREAMER_REQUEST,
 	PB_IMG_STREAMER_REPLY,
 	PB_PIDNS,
+	PB_BPFMAP_FILE,
+	PB_BPFMAP_DATA,
 
 	/* PB_AUTOGEN_STOP */
 

criu/protobuf-desc.c

@@ -65,6 +65,8 @@
 #include "images/binfmt-misc.pb-c.h"
 #include "images/autofs.pb-c.h"
 #include "images/img-streamer.pb-c.h"
+#include "images/bpfmap-file.pb-c.h"
+#include "images/bpfmap-data.pb-c.h"
 
 struct cr_pb_message_desc cr_pb_descs[PB_MAX];