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421bda23f9
Add example to print basic info about bpf programs and maps (id, type,
name).
Example output:
# python36 -m drgn examples/linux/bpf.py
Usage: examples/linux/bpf.py { prog | map }
# python36 -m drgn examples/linux/bpf.py p | head
9: BPF_PROG_TYPE_CGROUP_SKB name
10: BPF_PROG_TYPE_CGROUP_SKB name
23368: BPF_PROG_TYPE_CGROUP_SOCK_ADDR name tw_ipt_bind
23369: BPF_PROG_TYPE_CGROUP_SOCK_ADDR name tw_ipt_connect
23370: BPF_PROG_TYPE_SOCK_OPS name tw_ipt_listen
23371: BPF_PROG_TYPE_CGROUP_SOCK_ADDR name tw_ipt_sendmsg
59538: BPF_PROG_TYPE_CGROUP_SYSCTL name tw_sysctl
97104: BPF_PROG_TYPE_SCHED_CLS name fbflow_egress
97105: BPF_PROG_TYPE_SCHED_CLS name fbflow_ingress
97106: BPF_PROG_TYPE_KPROBE name fbflow_tcp_conn
# python36 -m drgn examples/linux/bpf.py m | head
8: BPF_MAP_TYPE_LPM_TRIE name
9: BPF_MAP_TYPE_LPM_TRIE name
12: BPF_MAP_TYPE_PERCPU_ARRAY name fbflow_pkt_info
16305: BPF_MAP_TYPE_ARRAY name tw_ipt_cfg
16306: BPF_MAP_TYPE_ARRAY name tw_tcp_ports_ma
16307: BPF_MAP_TYPE_LRU_HASH name tw_ipt_lo_sk
42606: BPF_MAP_TYPE_HASH name tw_sysctl_ro
55338: BPF_MAP_TYPE_HASH name hash_min
55341: BPF_MAP_TYPE_HASH name hash_8k_1
55342: BPF_MAP_TYPE_HASH name hash_8k_8
Signed-off-by: Andrey Ignatov <rdna@fb.com>
27 lines
922 B
Python
27 lines
922 B
Python
"""List all BPF maps or programs"""
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import sys
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from drgn.helpers import enum_type_to_class
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from drgn.helpers.linux import bpf_map_for_each, bpf_prog_for_each
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BpfMapType = enum_type_to_class(prog.type("enum bpf_map_type"), "BpfMapType")
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BpfProgType = enum_type_to_class(prog.type("enum bpf_prog_type"), "BpfProgType")
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if "prog".startswith(sys.argv[-1]):
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for prog in bpf_prog_for_each(prog):
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id_ = prog.aux.id.value_()
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type_ = BpfProgType(prog.type).name
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name_ = prog.aux.name.string_().decode()
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print("{:>6}: {:37} name {}".format(id_, type_, name_))
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elif "map".startswith(sys.argv[-1]):
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for map_ in bpf_map_for_each(prog):
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id_ = map_.id.value_()
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type_ = BpfMapType(map_.map_type).name
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name_ = map_.name.string_().decode()
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print("{:>6}: {:37} name {}".format(id_, type_, name_))
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else:
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print("Usage: {} {{ prog | map }}".format(sys.argv[0]))
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