tools: bpftool: add owner_prog_type and owner_jited to bpftool output

For prog array maps, the type of the owner program, and the JIT-ed state
of that program, are available from the file descriptor information
under /proc. Add them to "bpftool map show" output. Example output:

    # bpftool map show
    158225: prog_array  name jmp_table  flags 0x0
        key 4B  value 4B  max_entries 8  memlock 4096B
        owner_prog_type flow_dissector  owner jited
    # bpftool --json --pretty map show
    [{
            "id": 1337,
            "type": "prog_array",
            "name": "jmp_table",
            "flags": 0,
            "bytes_key": 4,
            "bytes_value": 4,
            "max_entries": 8,
            "bytes_memlock": 4096,
            "owner_prog_type": "flow_dissector",
            "owner_jited": true
        }
    ]

As we move the table used for associating names to program types,
complete it with the missing types (lwt_seg6local and sk_reuseport).
Also add missing types to the help message for "bpftool prog"
(sk_reuseport and flow_dissector).

Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

tools/bpf/bpftool/main.h

@@ -78,6 +78,32 @@
 #define HELP_SPEC_MAP							\
 	"MAP := { id MAP_ID | pinned FILE }"
 
+static const char * const prog_type_name[] = {
+	[BPF_PROG_TYPE_UNSPEC]			= "unspec",
+	[BPF_PROG_TYPE_SOCKET_FILTER]		= "socket_filter",
+	[BPF_PROG_TYPE_KPROBE]			= "kprobe",
+	[BPF_PROG_TYPE_SCHED_CLS]		= "sched_cls",
+	[BPF_PROG_TYPE_SCHED_ACT]		= "sched_act",
+	[BPF_PROG_TYPE_TRACEPOINT]		= "tracepoint",
+	[BPF_PROG_TYPE_XDP]			= "xdp",
+	[BPF_PROG_TYPE_PERF_EVENT]		= "perf_event",
+	[BPF_PROG_TYPE_CGROUP_SKB]		= "cgroup_skb",
+	[BPF_PROG_TYPE_CGROUP_SOCK]		= "cgroup_sock",
+	[BPF_PROG_TYPE_LWT_IN]			= "lwt_in",
+	[BPF_PROG_TYPE_LWT_OUT]			= "lwt_out",
+	[BPF_PROG_TYPE_LWT_XMIT]		= "lwt_xmit",
+	[BPF_PROG_TYPE_SOCK_OPS]		= "sock_ops",
+	[BPF_PROG_TYPE_SK_SKB]			= "sk_skb",
+	[BPF_PROG_TYPE_CGROUP_DEVICE]		= "cgroup_device",
+	[BPF_PROG_TYPE_SK_MSG]			= "sk_msg",
+	[BPF_PROG_TYPE_RAW_TRACEPOINT]		= "raw_tracepoint",
+	[BPF_PROG_TYPE_CGROUP_SOCK_ADDR]	= "cgroup_sock_addr",
+	[BPF_PROG_TYPE_LWT_SEG6LOCAL]		= "lwt_seg6local",
+	[BPF_PROG_TYPE_LIRC_MODE2]		= "lirc_mode2",
+	[BPF_PROG_TYPE_SK_REUSEPORT]		= "sk_reuseport",
+	[BPF_PROG_TYPE_FLOW_DISSECTOR]		= "flow_dissector",
+};
+
 enum bpf_obj_type {
 	BPF_OBJ_UNKNOWN,
 	BPF_OBJ_PROG,

tools/bpf/bpftool/map.c

@@ -487,7 +487,6 @@ static int show_map_close_json(int fd, struct bpf_map_info *info)
 	char *memlock;
 
 	memlock = get_fdinfo(fd, "memlock");
-	close(fd);
 
 	jsonw_start_object(json_wtr);
 
@@ -514,6 +513,30 @@ static int show_map_close_json(int fd, struct bpf_map_info *info)
 		jsonw_int_field(json_wtr, "bytes_memlock", atoi(memlock));
 	free(memlock);
 
+	if (info->type == BPF_MAP_TYPE_PROG_ARRAY) {
+		char *owner_prog_type = get_fdinfo(fd, "owner_prog_type");
+		char *owner_jited = get_fdinfo(fd, "owner_jited");
+
+		if (owner_prog_type) {
+			unsigned int prog_type = atoi(owner_prog_type);
+
+			if (prog_type < ARRAY_SIZE(prog_type_name))
+				jsonw_string_field(json_wtr, "owner_prog_type",
+						   prog_type_name[prog_type]);
+			else
+				jsonw_uint_field(json_wtr, "owner_prog_type",
+						 prog_type);
+		}
+		if (atoi(owner_jited))
+			jsonw_bool_field(json_wtr, "owner_jited", true);
+		else
+			jsonw_bool_field(json_wtr, "owner_jited", false);
+
+		free(owner_prog_type);
+		free(owner_jited);
+	}
+	close(fd);
+
 	if (!hash_empty(map_table.table)) {
 		struct pinned_obj *obj;
 
@@ -536,7 +559,6 @@ static int show_map_close_plain(int fd, struct bpf_map_info *info)
 	char *memlock;
 
 	memlock = get_fdinfo(fd, "memlock");
-	close(fd);
 
 	printf("%u: ", info->id);
 	if (info->type < ARRAY_SIZE(map_type_name))
@@ -557,6 +579,30 @@ static int show_map_close_plain(int fd, struct bpf_map_info *info)
 		printf("  memlock %sB", memlock);
 	free(memlock);
 
+	if (info->type == BPF_MAP_TYPE_PROG_ARRAY) {
+		char *owner_prog_type = get_fdinfo(fd, "owner_prog_type");
+		char *owner_jited = get_fdinfo(fd, "owner_jited");
+
+		printf("\n\t");
+		if (owner_prog_type) {
+			unsigned int prog_type = atoi(owner_prog_type);
+
+			if (prog_type < ARRAY_SIZE(prog_type_name))
+				printf("owner_prog_type %s  ",
+				       prog_type_name[prog_type]);
+			else
+				printf("owner_prog_type %d  ", prog_type);
+		}
+		if (atoi(owner_jited))
+			printf("owner jited");
+		else
+			printf("owner not jited");
+
+		free(owner_prog_type);
+		free(owner_jited);
+	}
+	close(fd);
+
 	printf("\n");
 	if (!hash_empty(map_table.table)) {
 		struct pinned_obj *obj;

tools/bpf/bpftool/prog.c

@@ -54,30 +54,6 @@
 #include "main.h"
 #include "xlated_dumper.h"
 
-static const char * const prog_type_name[] = {
-	[BPF_PROG_TYPE_UNSPEC]		= "unspec",
-	[BPF_PROG_TYPE_SOCKET_FILTER]	= "socket_filter",
-	[BPF_PROG_TYPE_KPROBE]		= "kprobe",
-	[BPF_PROG_TYPE_SCHED_CLS]	= "sched_cls",
-	[BPF_PROG_TYPE_SCHED_ACT]	= "sched_act",
-	[BPF_PROG_TYPE_TRACEPOINT]	= "tracepoint",
-	[BPF_PROG_TYPE_XDP]		= "xdp",
-	[BPF_PROG_TYPE_PERF_EVENT]	= "perf_event",
-	[BPF_PROG_TYPE_CGROUP_SKB]	= "cgroup_skb",
-	[BPF_PROG_TYPE_CGROUP_SOCK]	= "cgroup_sock",
-	[BPF_PROG_TYPE_LWT_IN]		= "lwt_in",
-	[BPF_PROG_TYPE_LWT_OUT]		= "lwt_out",
-	[BPF_PROG_TYPE_LWT_XMIT]	= "lwt_xmit",
-	[BPF_PROG_TYPE_SOCK_OPS]	= "sock_ops",
-	[BPF_PROG_TYPE_SK_SKB]		= "sk_skb",
-	[BPF_PROG_TYPE_CGROUP_DEVICE]	= "cgroup_device",
-	[BPF_PROG_TYPE_SK_MSG]		= "sk_msg",
-	[BPF_PROG_TYPE_RAW_TRACEPOINT]	= "raw_tracepoint",
-	[BPF_PROG_TYPE_CGROUP_SOCK_ADDR] = "cgroup_sock_addr",
-	[BPF_PROG_TYPE_LIRC_MODE2]	= "lirc_mode2",
-	[BPF_PROG_TYPE_FLOW_DISSECTOR]	= "flow_dissector",
-};
-
 static const char * const attach_type_strings[] = {
 	[BPF_SK_SKB_STREAM_PARSER] = "stream_parser",
 	[BPF_SK_SKB_STREAM_VERDICT] = "stream_verdict",
@@ -1172,6 +1148,7 @@ static int do_help(int argc, char **argv)
 		"                 tracepoint | raw_tracepoint | xdp | perf_event | cgroup/skb |\n"
 		"                 cgroup/sock | cgroup/dev | lwt_in | lwt_out | lwt_xmit |\n"
 		"                 lwt_seg6local | sockops | sk_skb | sk_msg | lirc_mode2 |\n"
+		"                 sk_reuseport | flow_dissector |\n"
 		"                 cgroup/bind4 | cgroup/bind6 | cgroup/post_bind4 |\n"
 		"                 cgroup/post_bind6 | cgroup/connect4 | cgroup/connect6 |\n"
 		"                 cgroup/sendmsg4 | cgroup/sendmsg6 }\n"