tools: bpftool: alias show and list commands

iproute2 seems to accept show and list as aliases.
Let's do the same thing, and by allowing both bring
cgroup syntax back in line with maps and progs.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

tools/bpf/bpftool/Documentation/bpftool-cgroup.rst

@@ -15,12 +15,12 @@ SYNOPSIS
 	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
 
 	*COMMANDS* :=
-	{ **list** | **attach** | **detach** | **help** }
+	{ **show** | **list** | **attach** | **detach** | **help** }
 
 MAP COMMANDS
 =============
 
-|	**bpftool** **cgroup list** *CGROUP*
+|	**bpftool** **cgroup { show | list }** *CGROUP*
 |	**bpftool** **cgroup attach** *CGROUP* *ATTACH_TYPE* *PROG* [*ATTACH_FLAGS*]
 |	**bpftool** **cgroup detach** *CGROUP* *ATTACH_TYPE* *PROG*
 |	**bpftool** **cgroup help**
@@ -31,7 +31,7 @@ MAP COMMANDS
 
 DESCRIPTION
 ===========
-	**bpftool cgroup list** *CGROUP*
+	**bpftool cgroup { show | list }** *CGROUP*
 		  List all programs attached to the cgroup *CGROUP*.
 
 		  Output will start with program ID followed by attach type,

tools/bpf/bpftool/Documentation/bpftool-map.rst

@@ -15,13 +15,13 @@ SYNOPSIS
 	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
 
 	*COMMANDS* :=
-	{ **show** | **dump** | **update** | **lookup** | **getnext** | **delete**
+	{ **show** | **list** | **dump** | **update** | **lookup** | **getnext** | **delete**
 	| **pin** | **help** }
 
 MAP COMMANDS
 =============
 
-|	**bpftool** **map show**   [*MAP*]
+|	**bpftool** **map { show | list }**   [*MAP*]
 |	**bpftool** **map dump**    *MAP*
 |	**bpftool** **map update**  *MAP*  **key** *BYTES*   **value** *VALUE* [*UPDATE_FLAGS*]
 |	**bpftool** **map lookup**  *MAP*  **key** *BYTES*
@@ -36,7 +36,7 @@ MAP COMMANDS
 
 DESCRIPTION
 ===========
-	**bpftool map show**   [*MAP*]
+	**bpftool map { show | list }**   [*MAP*]
 		  Show information about loaded maps.  If *MAP* is specified
 		  show information only about given map, otherwise list all
 		  maps currently loaded on the system.

tools/bpf/bpftool/Documentation/bpftool-prog.rst

@@ -15,12 +15,12 @@ SYNOPSIS
 	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] | { **-f** | **--bpffs** } }
 
 	*COMMANDS* :=
-	{ **show** | **dump xlated** | **dump jited** | **pin** | **load** | **help** }
+	{ **show** | **list** | **dump xlated** | **dump jited** | **pin** | **load** | **help** }
 
 MAP COMMANDS
 =============
 
-|	**bpftool** **prog show** [*PROG*]
+|	**bpftool** **prog { show | list }** [*PROG*]
 |	**bpftool** **prog dump xlated** *PROG* [{**file** *FILE* | **opcodes**}]
 |	**bpftool** **prog dump jited**  *PROG* [{**file** *FILE* | **opcodes**}]
 |	**bpftool** **prog pin** *PROG* *FILE*
@@ -31,7 +31,7 @@ MAP COMMANDS
 
 DESCRIPTION
 ===========
-	**bpftool prog show** [*PROG*]
+	**bpftool prog { show | list }** [*PROG*]
 		  Show information about loaded programs.  If *PROG* is
 		  specified show information only about given program, otherwise
 		  list all programs currently loaded on the system.

tools/bpf/bpftool/Documentation/bpftool.rst

@@ -22,13 +22,13 @@ SYNOPSIS
 	| { **-j** | **--json** } [{ **-p** | **--pretty** }] }
 
 	*MAP-COMMANDS* :=
-	{ **show** | **dump** | **update** | **lookup** | **getnext** | **delete**
+	{ **show** | **list** | **dump** | **update** | **lookup** | **getnext** | **delete**
 	| **pin** | **help** }
 
-	*PROG-COMMANDS* := { **show** | **dump jited** | **dump xlated** | **pin**
+	*PROG-COMMANDS* := { **show** | **list** | **dump jited** | **dump xlated** | **pin**
 	| **load** | **help** }
 
-	*CGROUP-COMMANDS* := { **list** | **attach** | **detach** | **help** }
+	*CGROUP-COMMANDS* := { **show** | **list** | **attach** | **detach** | **help** }
 
 DESCRIPTION
 ===========

tools/bpf/bpftool/bash-completion/bpftool

@@ -197,7 +197,7 @@ _bpftool()
 
             local PROG_TYPE='id pinned tag'
             case $command in
-                show)
+                show|list)
                     [[ $prev != "$command" ]] && return 0
                     COMPREPLY=( $( compgen -W "$PROG_TYPE" -- "$cur" ) )
                     return 0
@@ -232,7 +232,7 @@ _bpftool()
                     ;;
                 *)
                     [[ $prev == $object ]] && \
-                        COMPREPLY=( $( compgen -W 'dump help pin show' -- \
+                        COMPREPLY=( $( compgen -W 'dump help pin show list' -- \
                             "$cur" ) )
                     ;;
             esac
@@ -240,7 +240,7 @@ _bpftool()
         map)
             local MAP_TYPE='id pinned'
             case $command in
-                show|dump)
+                show|list|dump)
                     case $prev in
                         $command)
                             COMPREPLY=( $( compgen -W "$MAP_TYPE" -- "$cur" ) )
@@ -343,7 +343,7 @@ _bpftool()
                 *)
                     [[ $prev == $object ]] && \
                         COMPREPLY=( $( compgen -W 'delete dump getnext help \
-                            lookup pin show update' -- "$cur" ) )
+                            lookup pin show list update' -- "$cur" ) )
                     ;;
             esac
             ;;

tools/bpf/bpftool/cgroup.c

@@ -277,7 +277,7 @@ static int do_help(int argc, char **argv)
 	}
 
 	fprintf(stderr,
-		"Usage: %s %s list CGROUP\n"
+		"Usage: %s %s { show | list } CGROUP\n"
 		"       %s %s attach CGROUP ATTACH_TYPE PROG [ATTACH_FLAGS]\n"
 		"       %s %s detach CGROUP ATTACH_TYPE PROG\n"
 		"       %s %s help\n"
@@ -294,6 +294,7 @@ static int do_help(int argc, char **argv)
 }
 
 static const struct cmd cmds[] = {
+	{ "show",	do_show },
 	{ "list",	do_show },
 	{ "attach",	do_attach },
 	{ "detach",	do_detach },

tools/bpf/bpftool/map.c

@@ -861,7 +861,7 @@ static int do_help(int argc, char **argv)
 	}
 
 	fprintf(stderr,
-		"Usage: %s %s show   [MAP]\n"
+		"Usage: %s %s { show | list }   [MAP]\n"
 		"       %s %s dump    MAP\n"
 		"       %s %s update  MAP  key BYTES value VALUE [UPDATE_FLAGS]\n"
 		"       %s %s lookup  MAP  key BYTES\n"
@@ -885,6 +885,7 @@ static int do_help(int argc, char **argv)
 
 static const struct cmd cmds[] = {
 	{ "show",	do_show },
+	{ "list",	do_show },
 	{ "help",	do_help },
 	{ "dump",	do_dump },
 	{ "update",	do_update },

tools/bpf/bpftool/prog.c

@@ -836,7 +836,7 @@ static int do_help(int argc, char **argv)
 	}
 
 	fprintf(stderr,
-		"Usage: %s %s show [PROG]\n"
+		"Usage: %s %s { show | list } [PROG]\n"
 		"       %s %s dump xlated PROG [{ file FILE | opcodes }]\n"
 		"       %s %s dump jited  PROG [{ file FILE | opcodes }]\n"
 		"       %s %s pin   PROG FILE\n"
@@ -854,6 +854,7 @@ static int do_help(int argc, char **argv)
 
 static const struct cmd cmds[] = {
 	{ "show",	do_show },
+	{ "list",	do_show },
 	{ "help",	do_help },
 	{ "dump",	do_dump },
 	{ "pin",	do_pin },