major snmp overhaul
This commit is contained in:
parent
667fde17d7
commit
88c003d474
16 changed files with 1297 additions and 328 deletions
5
Makefile
5
Makefile
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@ -1,4 +1,4 @@
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.PHONY: help build push deploy restart login clean
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.PHONY: help build push deploy restart login clean compile-mibs
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# Variables
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REGISTRY := registry.gitlab.com/towerops/towerops
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@ -74,3 +74,6 @@ info: ## Show current image information
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@echo "Tags:"
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@echo " $(IMAGE_TAG_LATEST)"
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@echo " $(IMAGE_TAG_COMMIT)"
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compile-mibs: ## Pre-compile MIB files to JSON for runtime loading
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@python3 scripts/compile_mibs.py
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@ -460,10 +460,9 @@ defmodule SnmpKit.SnmpMgr.MIB do
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This combines compilation/loading with parsing for comprehensive MIB support.
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"""
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def load_and_integrate_mib(mib_file, opts \\ []) do
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with {:ok, _compiled} <- compile(mib_file, opts),
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{:ok, parsed} <- parse_mib_file(mib_file, opts) do
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# Register both compiled and parsed data
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GenServer.call(__MODULE__, {:integrate_mib_data, mib_file, parsed})
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with {:ok, compiled} <- compile(mib_file, opts),
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:ok <- GenServer.call(__MODULE__, {:integrate_mib_data, mib_file, compiled}) do
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{:ok, compiled}
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end
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end
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@ -585,18 +584,6 @@ defmodule SnmpKit.SnmpMgr.MIB do
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{:reply, result, state}
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end
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@impl true
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def handle_call({:load_mib, mib_path}, _from, state) do
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case load_mib_file_and_extract_mappings(mib_path) do
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{:ok, mib_data} ->
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new_state = merge_mib_data(state, mib_data)
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{:reply, :ok, new_state}
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error ->
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{:reply, error, state}
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end
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end
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@impl true
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def handle_call(:load_standard_mibs, _from, state) do
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# Standard MIBs are already loaded in init
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@ -630,6 +617,19 @@ defmodule SnmpKit.SnmpMgr.MIB do
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{:reply, :ok, new_state}
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end
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def handle_call({:bulk_register, mappings}, _from, state) do
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# Bulk register pre-compiled MIB mappings (from JSON files)
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merged_name_to_oid = Map.merge(state.name_to_oid, mappings)
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merged_oid_to_name = build_reverse_map(merged_name_to_oid)
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new_state =
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state
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|> Map.put(:name_to_oid, merged_name_to_oid)
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|> Map.put(:oid_to_name, merged_oid_to_name)
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{:reply, :ok, new_state}
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end
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## Private Functions
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defp compile_with_snmp_lib(mib_file, opts) do
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@ -849,11 +849,45 @@ defmodule SnmpKit.SnmpMgr.MIB do
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end
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end
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defp integrate_parsed_mib_data(state, mib_file, parsed_data) do
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# Integrate parsed MIB objects into our name resolution
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defp integrate_parsed_mib_data(state, mib_file, compiled_data) do
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# Read the MIB file content for workaround
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mib_content =
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case File.read(mib_file) do
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{:ok, content} -> content
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_ -> ""
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end
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# Extract OID mappings from compiled MIB symbols
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mib_mappings = extract_mib_mappings_from_compiled(compiled_data, state, mib_content)
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# Merge extracted OIDs into state
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merged_name_to_oid = Map.merge(state.name_to_oid, mib_mappings.name_to_oid)
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merged_oid_to_name = build_reverse_map(merged_name_to_oid)
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merged_name_to_meta = Map.merge(state.name_to_meta, mib_mappings.name_to_meta)
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# Also store raw compiled data
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integrated_mibs = Map.get(state, :integrated_mibs, %{})
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new_integrated = Map.put(integrated_mibs, mib_file, parsed_data)
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Map.put(state, :integrated_mibs, new_integrated)
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new_integrated = Map.put(integrated_mibs, mib_file, compiled_data)
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state
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|> Map.put(:name_to_oid, merged_name_to_oid)
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|> Map.put(:oid_to_name, merged_oid_to_name)
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|> Map.put(:name_to_meta, merged_name_to_meta)
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|> Map.put(:integrated_mibs, new_integrated)
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end
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# Extract OID mappings from compiled MIB data (symbols format)
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defp extract_mib_mappings_from_compiled(compiled_data, state, mib_content) do
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symbols = Map.get(compiled_data, :symbols, %{})
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# Convert symbols to definitions format
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definitions =
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Enum.map(symbols, fn {name, symbol_data} ->
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Map.put(symbol_data, :name, name)
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end)
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# Reuse existing extraction logic
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extract_mib_mappings(%{definitions: definitions}, state, mib_content)
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end
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defp resolve_name(name, _name_to_oid_map) when is_nil(name) or not is_binary(name) do
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@ -1182,6 +1216,29 @@ defmodule SnmpKit.SnmpMgr.MIB do
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end
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end
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# Handle tuple format: {parent_name, index_binary}
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# This format is used by the MIB parser for OID references
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defp normalize_parsed_oid({parent_name, index_binary}) when is_atom(parent_name) and is_binary(index_binary) do
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# Try to resolve the parent OID from current state
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parent_str = Atom.to_string(parent_name)
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case resolve(parent_str) do
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{:ok, parent_oid} when is_list(parent_oid) ->
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# Parse the index as an integer
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case :binary.decode_unsigned(index_binary) do
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index when is_integer(index) ->
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{:ok, parent_oid ++ [index]}
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_ ->
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{:error, :invalid_index}
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end
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_ ->
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# Parent not resolved yet - will be handled in second pass
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{:error, :unresolved_parent}
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end
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end
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defp normalize_parsed_oid(_), do: {:error, :invalid_oid}
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# Handle lists like [%{value: 1}, %{value: 3}, ...] possibly with names
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@ -1208,32 +1265,58 @@ defmodule SnmpKit.SnmpMgr.MIB do
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defp normalize_oid_element(v) when is_integer(v), do: {:ok, v}
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defp normalize_oid_element(_), do: :error
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defp load_mib_file_and_extract_mappings(mib_path) do
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case File.read(mib_path) do
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{:ok, mib_content} ->
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case Parser.parse(mib_content) do
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{:ok, parsed_mib_data} -> {:ok, extract_mib_mappings(parsed_mib_data)}
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{:error, reason} -> {:error, {:mib_parse_failed, reason}}
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end
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{:error, reason} ->
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{:error, {:file_read_failed, reason}}
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end
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end
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defp extract_mib_mappings(mib_data) do
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defp extract_mib_mappings(mib_data, state, mib_content) do
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# Extract name-to-OID mappings and basic metadata from parsed MIB data
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definitions = Map.get(mib_data, :definitions, [])
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tc_map = build_tc_map(definitions)
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{name_to_oid_map, name_to_meta} =
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Enum.reduce(definitions, {%{}, %{}}, fn defn, {oid_acc, meta_acc} ->
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process_mib_definition(defn, oid_acc, meta_acc, tc_map)
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end)
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# Build a map of name to OID definition for resolution
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oid_defs = build_oid_definition_map(definitions)
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# Workaround for parser bug: manually extract definitions with missing sub_index
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oid_defs = fix_missing_sub_indices(oid_defs, mib_content)
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# Resolve OIDs recursively, using existing state for parent resolution
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name_to_oid_map = resolve_all_oids(oid_defs, state.name_to_oid)
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# Build metadata for object types
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name_to_meta = build_metadata_map(definitions, tc_map)
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%{name_to_oid: name_to_oid_map, name_to_meta: name_to_meta}
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end
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# Workaround for parser bug: extract OBJECT-IDENTIFIER definitions with missing sub_index
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# The parser fails to extract sub_index when the value is 10 (newline character)
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defp fix_missing_sub_indices(oid_defs, mib_content) do
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# Find entries with nil sub_index but parent reference
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missing_indices =
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oid_defs
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|> Enum.filter(fn {_name, oid_def} ->
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case oid_def do
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{_parent, nil} -> true
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_ -> false
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end
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end)
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|> Enum.map(fn {name, _} -> name end)
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# For each missing entry, try to extract from raw MIB content
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Enum.reduce(missing_indices, oid_defs, fn name, acc ->
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# Pattern: name OBJECT IDENTIFIER ::= { parent index }
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regex = ~r/#{name}\s+OBJECT\s+IDENTIFIER\s+::=\s+\{\s+(\w+)\s+(\d+)\s+\}/
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case Regex.run(regex, mib_content) do
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[_, parent, index_str] ->
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index = String.to_integer(index_str)
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# Convert to the same format as other indices (binary with the integer as byte)
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parent_atom = String.to_atom(parent)
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Map.put(acc, name, {parent_atom, <<index>>})
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_ ->
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acc
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end
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end)
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end
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# Build textual convention map from definitions
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defp build_tc_map(definitions) do
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definitions
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@ -1246,28 +1329,130 @@ defmodule SnmpKit.SnmpMgr.MIB do
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end)
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end
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# Process a single MIB definition
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defp process_mib_definition(%{__type__: :object_type} = defn, oid_acc, meta_acc, tc_map) do
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name = Map.get(defn, :name)
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oid_any = Map.get(defn, :oid)
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# Build a map of name to OID definition for resolution
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defp build_oid_definition_map(definitions) do
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definitions
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|> Enum.filter(fn def ->
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type = Map.get(def, :__type__)
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type in [:object_type, :object_identifier, :module_identity]
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end)
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|> Enum.reduce(%{}, fn def, acc ->
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name = Map.get(def, :name)
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oid = Map.get(def, :oid)
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parent = Map.get(def, :parent)
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sub_index = Map.get(def, :sub_index)
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oid_acc2 = maybe_add_oid_mapping(name, oid_any, oid_acc)
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meta = build_object_type_meta(defn, tc_map)
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cond do
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# Object has explicit OID (e.g., {:parentName, <<index>>})
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name && oid ->
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Map.put(acc, name, oid)
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{oid_acc2, Map.put(meta_acc, name, meta)}
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# OBJECT-IDENTIFIER with parent and sub_index
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name && parent && sub_index ->
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# Convert parent/sub_index to the same format as OID tuples
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parent_atom = String.to_atom(parent)
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Map.put(acc, name, {parent_atom, sub_index})
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# OBJECT-IDENTIFIER with parent but missing sub_index (parser bug)
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# Mark with nil so fix_missing_sub_indices can handle it
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name && parent ->
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parent_atom = String.to_atom(parent)
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Map.put(acc, name, {parent_atom, nil})
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# No usable data
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true ->
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acc
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end
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end)
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end
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defp process_mib_definition(_defn, oid_acc, meta_acc, _tc_map), do: {oid_acc, meta_acc}
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# Resolve all OIDs recursively
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defp resolve_all_oids(oid_defs, existing_oids) do
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# Start with existing OIDs from state and iterate until all resolvable OIDs are resolved
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resolve_oids_iteratively(oid_defs, existing_oids, 10)
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end
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# Add OID mapping if valid
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defp maybe_add_oid_mapping(name, oid_any, oid_acc) when is_binary(name) do
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case normalize_parsed_oid(oid_any) do
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{:ok, oid_list} -> Map.put(oid_acc, name, oid_list)
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_ -> oid_acc
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defp resolve_oids_iteratively(_oid_defs, resolved, 0) do
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# Max iterations reached, return what we have
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resolved
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end
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defp resolve_oids_iteratively(oid_defs, resolved, iterations_left) do
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{new_resolved, remaining} =
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Enum.reduce(oid_defs, {resolved, %{}}, fn {name, oid_def}, {res_acc, rem_acc} ->
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case resolve_single_oid(oid_def, res_acc) do
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{:ok, oid_list} ->
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{Map.put(res_acc, name, oid_list), rem_acc}
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{:error, _reason} ->
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{res_acc, Map.put(rem_acc, name, oid_def)}
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end
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end)
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if map_size(remaining) == map_size(oid_defs) do
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# No progress made, stop iterating
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new_resolved
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else
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# Continue with remaining unresolved OIDs
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resolve_oids_iteratively(remaining, new_resolved, iterations_left - 1)
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end
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end
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defp maybe_add_oid_mapping(_name, _oid_any, oid_acc), do: oid_acc
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defp resolve_single_oid(oid_def, _resolved) when is_list(oid_def) do
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# Already a list of integers
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case oid_def do
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[] ->
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{:error, :empty_oid}
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_ ->
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if Enum.all?(oid_def, &is_integer/1) do
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{:ok, oid_def}
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else
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{:error, :not_resolved}
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end
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end
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end
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defp resolve_single_oid({parent_name, index_binary}, resolved) when is_atom(parent_name) and is_binary(index_binary) do
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parent_str = Atom.to_string(parent_name)
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case Map.get(resolved, parent_str) do
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parent_oid when is_list(parent_oid) ->
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# Decode the index - MIB parser uses UTF-8 character for numeric values
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index = decode_mib_index(index_binary)
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{:ok, parent_oid ++ [index]}
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_ ->
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{:error, :parent_not_resolved}
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end
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end
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defp resolve_single_oid(_oid_def, _resolved), do: {:error, :invalid_format}
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# Decode MIB index from binary
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# The parser represents integers as UTF-8 characters where the code point is the value
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defp decode_mib_index(binary) when is_binary(binary) do
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case String.to_charlist(binary) do
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[code_point | _] -> code_point
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[] -> :binary.decode_unsigned(binary)
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end
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end
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# Build metadata map for object types
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defp build_metadata_map(definitions, tc_map) do
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definitions
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|> Enum.filter(&(Map.get(&1, :__type__) == :object_type))
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|> Enum.reduce(%{}, fn def, acc ->
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name = Map.get(def, :name)
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if name do
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meta = build_object_type_meta(def, tc_map)
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Map.put(acc, name, meta)
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else
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acc
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end
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end)
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end
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# Build metadata for an object type definition
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defp build_object_type_meta(defn, tc_map) do
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@ -1321,10 +1506,4 @@ defmodule SnmpKit.SnmpMgr.MIB do
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{syntax_base_from(syntax_atom), textual_convention_from(syntax_atom), nil}
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end
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end
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defp merge_mib_data(state, _mib_data) do
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# This would merge the new MIB data with existing state
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# For now, just return the current state
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state
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end
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end
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@ -12,6 +12,18 @@ defmodule Towerops.Application do
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@impl true
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def start(_type, _args) do
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# Ensure parsetools is started for MIB parsing (yecc dependency)
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_ = Application.ensure_all_started(:parsetools)
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# Add snmpkit ebin directory to code path for mib_grammar_elixir.beam
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# This is needed because snmpkit has vendored Erlang modules (compiled from .yrl)
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# Note: With pre-compiled MIBs, this may no longer be needed
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snmpkit_ebin = Application.app_dir(:towerops, "../snmpkit/ebin")
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if File.dir?(snmpkit_ebin) do
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:code.add_patha(to_charlist(snmpkit_ebin))
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end
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# Run migrations on startup (Ecto handles locking for concurrent runs)
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_ =
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if Application.get_env(:towerops, Towerops.Repo)[:database] != "towerops_test" do
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@ -32,7 +44,9 @@ defmodule Towerops.Application do
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Towerops.Profiles.YamlProfiles,
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# SnmpKit services for SNMP operations
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SnmpKit.SnmpMgr.Config,
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SnmpKit.SnmpMgr.MIB
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SnmpKit.SnmpMgr.MIB,
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# Load vendor MIBs after SnmpKit.SnmpMgr.MIB starts
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{Task, fn -> Towerops.Snmp.MibLoader.load_all_mibs() end}
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] ++
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dev_only_workers() ++
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background_workers() ++
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@ -8,6 +8,8 @@ defmodule Towerops.Profiles.YamlProfiles do
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use GenServer
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alias Towerops.Snmp.Client
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require Logger
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@table :yaml_profiles
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@ -46,16 +48,15 @@ defmodule Towerops.Profiles.YamlProfiles do
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Uses LibreNMS's two-pass detection approach:
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1. First pass: Check profiles WITHOUT snmpget/snmpwalk conditions (except generic OS)
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2. Second pass: Check profiles WITH snmpget/snmpwalk conditions (deferred)
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- Since we can't evaluate snmpget, these will effectively be skipped
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2. Second pass: Check profiles WITH snmpget/snmpwalk conditions (evaluated via SNMP)
|
||||
3. Third pass: Check generic OS (airos, freebsd, linux) as final fallback
|
||||
"""
|
||||
def match_profile(system_info) do
|
||||
def match_profile(system_info, client_opts \\ []) do
|
||||
sys_object_id = Map.get(system_info, :sys_object_id, "")
|
||||
sys_descr = Map.get(system_info, :sys_descr, "")
|
||||
|
||||
# First try to match by sysObjectID using LibreNMS's approach
|
||||
case match_by_oid_librenms_style(sys_object_id, sys_descr) do
|
||||
case match_by_oid_librenms_style(sys_object_id, sys_descr, client_opts) do
|
||||
nil -> match_by_descr(sys_descr)
|
||||
profile -> profile
|
||||
end
|
||||
|
|
@ -195,16 +196,24 @@ defmodule Towerops.Profiles.YamlProfiles do
|
|||
|
||||
defp parse_discovery_block(block) do
|
||||
oids = extract_oids_from_block(block)
|
||||
has_condition = Map.has_key?(block, "snmpget") or Map.has_key?(block, "snmpwalk")
|
||||
has_snmpget = Map.has_key?(block, "snmpget")
|
||||
has_snmpwalk = Map.has_key?(block, "snmpwalk")
|
||||
descr_patterns = extract_descr_from_block(block)
|
||||
descr_regex = extract_descr_regex_from_block(block)
|
||||
snmpget_condition = extract_snmpget_condition(block)
|
||||
snmpwalk_condition = extract_snmpwalk_condition(block)
|
||||
|
||||
Enum.map(oids, fn oid ->
|
||||
%{
|
||||
oid: normalize_oid(oid),
|
||||
has_condition: has_condition,
|
||||
has_snmpget: has_snmpget,
|
||||
has_snmpwalk: has_snmpwalk,
|
||||
# Both snmpget and snmpwalk are supported conditional checks
|
||||
has_condition: has_snmpget || has_snmpwalk,
|
||||
descr_patterns: descr_patterns,
|
||||
descr_regex: descr_regex
|
||||
descr_regex: descr_regex,
|
||||
snmpget: snmpget_condition,
|
||||
snmpwalk: snmpwalk_condition
|
||||
}
|
||||
end)
|
||||
end
|
||||
|
|
@ -241,6 +250,28 @@ defmodule Towerops.Profiles.YamlProfiles do
|
|||
end
|
||||
end
|
||||
|
||||
defp extract_snmpget_condition(block) do
|
||||
case Map.get(block, "snmpget") do
|
||||
%{"oid" => oid, "value" => value} = condition ->
|
||||
# Default operator is 'contains' like LibreNMS
|
||||
%{oid: oid, op: Map.get(condition, "op", "contains"), value: value}
|
||||
|
||||
_ ->
|
||||
nil
|
||||
end
|
||||
end
|
||||
|
||||
defp extract_snmpwalk_condition(block) do
|
||||
case Map.get(block, "snmpwalk") do
|
||||
%{"oid" => oid, "value" => value} = condition ->
|
||||
# Default operator is 'contains' like LibreNMS
|
||||
%{oid: oid, op: Map.get(condition, "op", "contains"), value: value}
|
||||
|
||||
_ ->
|
||||
nil
|
||||
end
|
||||
end
|
||||
|
||||
# Strip leading dot from OID (LibreNMS uses .1.3.6... but SNMP returns 1.3.6...)
|
||||
defp normalize_oid(nil), do: nil
|
||||
defp normalize_oid("." <> rest), do: rest
|
||||
|
|
@ -584,54 +615,90 @@ defmodule Towerops.Profiles.YamlProfiles do
|
|||
#
|
||||
# We check per-block, not per-profile. A profile may have both conditional and unconditional
|
||||
# blocks for different OIDs (e.g., ibm-imm has snmpget block for one OID and plain block for another)
|
||||
defp match_by_oid_librenms_style(sys_object_id, sys_descr) when is_binary(sys_object_id) and sys_object_id != "" do
|
||||
defp match_by_oid_librenms_style(sys_object_id, sys_descr, client_opts)
|
||||
when is_binary(sys_object_id) and sys_object_id != "" do
|
||||
all_profiles = list_profiles()
|
||||
|
||||
# Categorize profiles
|
||||
{generic_profiles, other_profiles} =
|
||||
Enum.split_with(all_profiles, fn p -> p.name in @generic_os end)
|
||||
|
||||
# Try matching in priority order, return first match
|
||||
try_profile_matches([
|
||||
# First pass: non-generic profiles with unconditional matching blocks
|
||||
case find_best_unconditional_match(other_profiles, sys_object_id, sys_descr) do
|
||||
nil ->
|
||||
# Second pass: generic OS with unconditional blocks
|
||||
case find_best_unconditional_match(generic_profiles, sys_object_id, sys_descr) do
|
||||
nil ->
|
||||
# Third pass: generic OS with conditional blocks (for profiles like airos)
|
||||
find_best_conditional_match(generic_profiles, sys_object_id, sys_descr)
|
||||
|
||||
profile ->
|
||||
profile
|
||||
fn -> find_best_unconditional_match(other_profiles, sys_object_id, sys_descr) end,
|
||||
# Second pass: non-generic profiles with conditional blocks (snmpget/snmpwalk)
|
||||
fn -> find_best_conditional_match(other_profiles, sys_object_id, sys_descr, client_opts) end,
|
||||
# Third pass: generic OS with unconditional blocks
|
||||
fn -> find_best_unconditional_match(generic_profiles, sys_object_id, sys_descr) end,
|
||||
# Fourth pass: generic OS with conditional blocks (for profiles like airos)
|
||||
fn -> find_best_conditional_match(generic_profiles, sys_object_id, sys_descr, client_opts) end
|
||||
])
|
||||
end
|
||||
|
||||
profile ->
|
||||
profile
|
||||
end
|
||||
end
|
||||
defp match_by_oid_librenms_style(_, _, _), do: nil
|
||||
|
||||
defp match_by_oid_librenms_style(_, _), do: nil
|
||||
defp try_profile_matches([]), do: nil
|
||||
|
||||
defp try_profile_matches([matcher | rest]) do
|
||||
case matcher.() do
|
||||
nil -> try_profile_matches(rest)
|
||||
profile -> profile
|
||||
end
|
||||
end
|
||||
|
||||
# Find best match using only unconditional detection blocks (no snmpget/snmpwalk)
|
||||
defp find_best_unconditional_match(profiles, sys_object_id, sys_descr) do
|
||||
find_best_block_match(profiles, sys_object_id, sys_descr, false)
|
||||
find_best_block_match(profiles, sys_object_id, sys_descr, false, [])
|
||||
end
|
||||
|
||||
# Find best match using conditional detection blocks (has snmpget/snmpwalk)
|
||||
defp find_best_conditional_match(profiles, sys_object_id, sys_descr) do
|
||||
find_best_block_match(profiles, sys_object_id, sys_descr, true)
|
||||
defp find_best_conditional_match(profiles, sys_object_id, sys_descr, client_opts) do
|
||||
profile_names = Enum.map(profiles, & &1.name)
|
||||
|
||||
Logger.info("Attempting conditional profile match with snmpget evaluation",
|
||||
sys_object_id: sys_object_id,
|
||||
sys_descr: sys_descr,
|
||||
profile_count: length(profiles),
|
||||
profiles: Enum.join(profile_names, ", ")
|
||||
)
|
||||
|
||||
find_best_block_match(profiles, sys_object_id, sys_descr, true, client_opts)
|
||||
end
|
||||
|
||||
# Find the best matching profile based on detection blocks
|
||||
defp find_best_block_match(profiles, sys_object_id, sys_descr, match_conditional) do
|
||||
defp find_best_block_match(profiles, sys_object_id, sys_descr, match_conditional, client_opts) do
|
||||
profiles
|
||||
|> Enum.flat_map(&find_profile_matching_blocks(&1, sys_object_id, sys_descr, match_conditional))
|
||||
|> Enum.flat_map(&find_profile_matching_blocks(&1, sys_object_id, sys_descr, match_conditional, client_opts))
|
||||
|> select_best_match()
|
||||
end
|
||||
|
||||
defp find_profile_matching_blocks(profile, sys_object_id, sys_descr, match_conditional) do
|
||||
defp find_profile_matching_blocks(profile, sys_object_id, sys_descr, match_conditional, client_opts) do
|
||||
# Log when checking profiles with conditional blocks
|
||||
conditional_blocks = Enum.filter(profile.detection_blocks, fn block -> block.has_condition end)
|
||||
|
||||
if match_conditional && conditional_blocks != [] do
|
||||
Logger.info("Checking profile with conditional blocks",
|
||||
profile_name: profile.name,
|
||||
conditional_blocks: length(conditional_blocks),
|
||||
total_blocks: length(profile.detection_blocks)
|
||||
)
|
||||
end
|
||||
|
||||
matching_blocks =
|
||||
Enum.filter(profile.detection_blocks, fn block ->
|
||||
block_matches?(block, sys_object_id, sys_descr, match_conditional)
|
||||
matches = block_matches?(block, sys_object_id, sys_descr, match_conditional, client_opts)
|
||||
|
||||
if matches && match_conditional do
|
||||
Logger.info("Profile matched with conditional check",
|
||||
profile_name: profile.name,
|
||||
oid: block.oid,
|
||||
has_snmpget: block.has_snmpget,
|
||||
has_snmpwalk: block.has_snmpwalk
|
||||
)
|
||||
end
|
||||
|
||||
matches
|
||||
end)
|
||||
|
||||
case matching_blocks do
|
||||
|
|
@ -640,11 +707,28 @@ defmodule Towerops.Profiles.YamlProfiles do
|
|||
end
|
||||
end
|
||||
|
||||
defp block_matches?(block, sys_object_id, sys_descr, match_conditional) do
|
||||
block.has_condition == match_conditional &&
|
||||
block.oid &&
|
||||
String.contains?(sys_object_id, block.oid) &&
|
||||
block_matches_descr?(block, sys_descr)
|
||||
defp block_matches?(block, sys_object_id, sys_descr, match_conditional, client_opts) do
|
||||
oid_match = block.oid && String.contains?(sys_object_id, block.oid)
|
||||
condition_match = block.has_condition == match_conditional
|
||||
descr_match = block_matches_descr?(block, sys_descr)
|
||||
snmpget_match = block_matches_snmpget?(block, match_conditional, client_opts)
|
||||
|
||||
matches = oid_match && condition_match && descr_match && snmpget_match
|
||||
|
||||
if oid_match && condition_match do
|
||||
Logger.info("Block evaluation",
|
||||
oid: block.oid,
|
||||
has_snmpget: block.has_snmpget,
|
||||
has_snmpwalk: block.has_snmpwalk,
|
||||
match_conditional: match_conditional,
|
||||
oid_match: oid_match,
|
||||
descr_match: descr_match,
|
||||
snmpget_match: snmpget_match,
|
||||
overall_match: matches
|
||||
)
|
||||
end
|
||||
|
||||
matches
|
||||
end
|
||||
|
||||
defp select_best_match([]), do: nil
|
||||
|
|
@ -674,6 +758,113 @@ defmodule Towerops.Profiles.YamlProfiles do
|
|||
end
|
||||
end
|
||||
|
||||
# Check if a detection block's snmpget/snmpwalk conditions are satisfied
|
||||
defp block_matches_snmpget?(block, match_conditional, client_opts) do
|
||||
cond do
|
||||
# No conditions - always matches
|
||||
is_nil(block.snmpget) && is_nil(block.snmpwalk) ->
|
||||
true
|
||||
|
||||
# Not in conditional matching mode - skip evaluation
|
||||
!match_conditional ->
|
||||
true
|
||||
|
||||
# Evaluate snmpget condition via SNMP query
|
||||
!is_nil(block.snmpget) ->
|
||||
evaluate_snmpget_condition(block.snmpget, client_opts)
|
||||
|
||||
# Evaluate snmpwalk condition via SNMP walk
|
||||
!is_nil(block.snmpwalk) ->
|
||||
evaluate_snmpwalk_condition(block.snmpwalk, client_opts)
|
||||
|
||||
# Default: no match
|
||||
true ->
|
||||
false
|
||||
end
|
||||
end
|
||||
|
||||
# Evaluate a snmpget condition by performing SNMP query
|
||||
defp evaluate_snmpget_condition(%{oid: oid, op: op, value: expected}, client_opts) do
|
||||
Logger.info("Evaluating snmpget condition: oid=#{oid}, op=#{op}, expected=#{inspect(expected)}")
|
||||
|
||||
# Query the OID via SNMP
|
||||
case Client.get(client_opts, oid) do
|
||||
{:ok, actual} ->
|
||||
result = compare_snmp_values(actual, op, expected)
|
||||
Logger.info("snmpget result: actual=#{inspect(actual)}, matches=#{result}")
|
||||
result
|
||||
|
||||
{:error, reason} ->
|
||||
Logger.info("snmpget query failed: #{inspect(reason)}")
|
||||
false
|
||||
end
|
||||
end
|
||||
|
||||
# Evaluate a snmpwalk condition by performing SNMP walk
|
||||
defp evaluate_snmpwalk_condition(%{oid: oid, op: op, value: expected}, client_opts) do
|
||||
Logger.info("Evaluating snmpwalk condition: oid=#{oid}, op=#{op}, expected=#{inspect(expected)}")
|
||||
|
||||
# Walk the OID via SNMP to get all values
|
||||
case Client.walk(client_opts, oid) do
|
||||
{:ok, results} when is_list(results) ->
|
||||
# Extract all values from the walk results
|
||||
values = Enum.map(results, fn %{value: value} -> value end)
|
||||
# Check if any value matches the condition
|
||||
result = Enum.any?(values, fn value -> compare_snmp_values(value, op, expected) end)
|
||||
Logger.info("snmpwalk result: found #{length(values)} values, matches=#{result}")
|
||||
result
|
||||
|
||||
{:error, reason} ->
|
||||
Logger.info("snmpwalk query failed: #{inspect(reason)}")
|
||||
false
|
||||
end
|
||||
end
|
||||
|
||||
# Compare SNMP values using LibreNMS operators
|
||||
defp compare_snmp_values(actual, "=", expected), do: to_string(actual) == to_string(expected)
|
||||
defp compare_snmp_values(actual, "!=", expected), do: to_string(actual) != to_string(expected)
|
||||
defp compare_snmp_values(actual, "starts", expected), do: String.starts_with?(to_string(actual), to_string(expected))
|
||||
defp compare_snmp_values(actual, "contains", expected), do: String.contains?(to_string(actual), to_string(expected))
|
||||
|
||||
defp compare_snmp_values(actual, "regex", expected) do
|
||||
case Regex.compile(to_string(expected)) do
|
||||
{:ok, regex} -> Regex.match?(regex, to_string(actual))
|
||||
_ -> false
|
||||
end
|
||||
end
|
||||
|
||||
defp compare_snmp_values(actual, ">=", expected) do
|
||||
# Try to parse as numbers for numeric comparison
|
||||
case {parse_number(actual), parse_number(expected)} do
|
||||
{actual_num, expected_num} when is_number(actual_num) and is_number(expected_num) ->
|
||||
actual_num >= expected_num
|
||||
|
||||
_ ->
|
||||
# Fallback to string comparison
|
||||
to_string(actual) >= to_string(expected)
|
||||
end
|
||||
end
|
||||
|
||||
defp compare_snmp_values(_actual, _op, _expected), do: false
|
||||
|
||||
# Parse value as number (integer or float)
|
||||
defp parse_number(value) when is_number(value), do: value
|
||||
|
||||
defp parse_number(value) when is_binary(value) do
|
||||
case Integer.parse(value) do
|
||||
{num, ""} ->
|
||||
num
|
||||
|
||||
_ ->
|
||||
case Float.parse(value) do
|
||||
{num, ""} -> num
|
||||
_ -> nil
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
defp parse_number(_), do: nil
|
||||
|
||||
defp match_by_descr(sys_descr) when is_binary(sys_descr) and sys_descr != "" do
|
||||
Enum.find(list_profiles(), fn profile ->
|
||||
Enum.any?(profile.detection_patterns, fn pattern ->
|
||||
|
|
|
|||
|
|
@ -61,7 +61,7 @@ defmodule Towerops.Snmp.AgentDiscovery do
|
|||
def process_agent_discovery(device, oid_values) when is_map(oid_values) do
|
||||
oid_count = map_size(oid_values)
|
||||
|
||||
Logger.info("Processing agent discovery for #{device.name} (#{device.ip_address})",
|
||||
Logger.debug("Processing agent discovery for #{device.name} (#{device.ip_address})",
|
||||
device_id: device.id,
|
||||
oid_count: oid_count
|
||||
)
|
||||
|
|
@ -85,7 +85,7 @@ defmodule Towerops.Snmp.AgentDiscovery do
|
|||
# but read from the OID map instead of making SNMP queries
|
||||
case Discovery.discover_device_with_opts(device, client_opts) do
|
||||
{:ok, discovered_device} ->
|
||||
Logger.info("Agent discovery succeeded for #{device.name}",
|
||||
Logger.debug("Agent discovery succeeded for #{device.name}",
|
||||
device_id: device.id,
|
||||
interfaces: length(discovered_device.interfaces || []),
|
||||
sensors: count_sensors(discovered_device)
|
||||
|
|
|
|||
|
|
@ -51,7 +51,10 @@ defmodule Towerops.Snmp.Client do
|
|||
target = build_target(opts)
|
||||
snmp_opts = build_snmp_opts(opts)
|
||||
|
||||
case snmp_adapter().get(target, oid, snmp_opts) do
|
||||
# Resolve MIB name to numeric OID if needed
|
||||
resolved_oid = resolve_mib_name(oid)
|
||||
|
||||
case snmp_adapter().get(target, resolved_oid, snmp_opts) do
|
||||
{:ok, value} ->
|
||||
{:ok, extract_snmp_value(value)}
|
||||
|
||||
|
|
@ -177,7 +180,10 @@ defmodule Towerops.Snmp.Client do
|
|||
target = build_target(opts)
|
||||
snmp_opts = build_snmp_opts(opts)
|
||||
|
||||
case snmp_adapter().walk(target, start_oid, snmp_opts) do
|
||||
# Resolve MIB name to numeric OID if needed
|
||||
resolved_oid = resolve_mib_name(start_oid)
|
||||
|
||||
case snmp_adapter().walk(target, resolved_oid, snmp_opts) do
|
||||
{:ok, results} when is_list(results) ->
|
||||
# snmpkit returns a list of maps, convert to OID -> value map
|
||||
walked_data =
|
||||
|
|
@ -323,6 +329,49 @@ defmodule Towerops.Snmp.Client do
|
|||
defp parse_version(:v2c), do: :v2c
|
||||
defp parse_version(_other), do: :v2c
|
||||
|
||||
@doc """
|
||||
Resolve MIB name to numeric OID using SnmpKit.
|
||||
Handles MODULE-NAME::objectName format by stripping module prefix.
|
||||
Returns numeric OID as dotted string, or original value if resolution fails.
|
||||
"""
|
||||
@spec resolve_mib_name(oid()) :: String.t()
|
||||
def resolve_mib_name(oid) when is_binary(oid) do
|
||||
# Check if it's already a numeric OID
|
||||
if String.starts_with?(oid, ".") or String.match?(oid, ~r/^\d+(\.\d+)*$/) do
|
||||
oid
|
||||
else
|
||||
# Handle MODULE-NAME::objectName format (strip module prefix)
|
||||
object_name =
|
||||
if String.contains?(oid, "::") do
|
||||
oid |> String.split("::") |> List.last()
|
||||
else
|
||||
oid
|
||||
end
|
||||
|
||||
# Try to resolve MIB name to numeric OID
|
||||
case SnmpKit.resolve(object_name) do
|
||||
{:ok, numeric_oid} ->
|
||||
# Convert OID list to dotted string if needed
|
||||
resolved_oid =
|
||||
if is_list(numeric_oid) do
|
||||
Enum.join(numeric_oid, ".")
|
||||
else
|
||||
numeric_oid
|
||||
end
|
||||
|
||||
Logger.debug("Resolved MIB name #{oid} to #{resolved_oid}")
|
||||
resolved_oid
|
||||
|
||||
{:error, reason} ->
|
||||
# If resolution fails, log and use as-is
|
||||
Logger.debug("Could not resolve MIB name #{oid}: #{inspect(reason)}, using as-is")
|
||||
oid
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
def resolve_mib_name(oid), do: oid
|
||||
|
||||
# Extract value from snmpkit's typed responses
|
||||
defp extract_snmp_value({:octet_string, value}), do: value
|
||||
defp extract_snmp_value({:integer, value}), do: value
|
||||
|
|
|
|||
|
|
@ -102,7 +102,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
@spec discover_device(DeviceSchema.t()) :: {:ok, Device.t()} | {:error, term()}
|
||||
def discover_device(%DeviceSchema{} = device) do
|
||||
if device.snmp_enabled do
|
||||
Logger.info("Starting SNMP discovery for device: #{device.name} (#{device.ip_address})")
|
||||
Logger.debug("Starting SNMP discovery for device: #{device.name} (#{device.ip_address})")
|
||||
|
||||
client_opts = build_client_opts(device)
|
||||
|
||||
|
|
@ -141,7 +141,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
{:ok, Device.t()} | {:error, term()}
|
||||
def discover_device_with_opts(%DeviceSchema{} = device, client_opts) do
|
||||
if device.snmp_enabled do
|
||||
Logger.info("Starting discovery with custom opts for: #{device.name}")
|
||||
Logger.debug("Starting discovery with custom opts for: #{device.name}")
|
||||
|
||||
# Skip speed categorization for Replay adapter (agent-based discovery)
|
||||
# Agent data is pre-collected, so network checks are not needed
|
||||
|
|
@ -173,7 +173,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
with {:ok, _} <- Client.test_connection(client_opts),
|
||||
{:ok, system_info} <- discover_system(client_opts),
|
||||
{:ok, device} <- update_device_name_from_snmp(device, system_info),
|
||||
profile = select_profile(system_info),
|
||||
profile = select_profile(system_info, client_opts),
|
||||
{:ok, device_info} <- build_device_info(client_opts, system_info, profile),
|
||||
{:ok, interfaces} <- discover_interfaces_with_timeout(client_opts, profile, timeouts),
|
||||
{:ok, sensors} <- discover_sensors_with_timeout(client_opts, profile, timeouts),
|
||||
|
|
@ -190,7 +190,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
{:ok, arp_entries} <- discover_arp_with_timeout(client_opts, timeouts),
|
||||
:ok <- save_arp_entries(discovered_device.device_id, arp_entries, discovered_device.interfaces) do
|
||||
_ = update_device_discovery_time(device)
|
||||
Logger.info("SNMP discovery completed successfully for: #{device.name}")
|
||||
Logger.debug("SNMP discovery completed successfully for: #{device.name}")
|
||||
|
||||
# Determine if this was first discovery or rediscovery
|
||||
# Check if device existed before (had last_discovery_at set)
|
||||
|
|
@ -313,7 +313,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
|> where([e, s], s.organization_id == ^org_id and e.snmp_enabled == true)
|
||||
|> Repo.all()
|
||||
|
||||
Logger.info("Enqueuing SNMP discovery for #{length(device_list)} devices in org #{org_id}")
|
||||
Logger.debug("Enqueuing SNMP discovery for #{length(device_list)} devices in org #{org_id}")
|
||||
|
||||
# Enqueue Oban jobs for each device
|
||||
results =
|
||||
|
|
@ -328,7 +328,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
end
|
||||
end)
|
||||
|
||||
Logger.info("Discovery jobs enqueued: #{results.enqueued} succeeded, #{results.failed} failed")
|
||||
Logger.debug("Discovery jobs enqueued: #{results.enqueued} succeeded, #{results.failed} failed")
|
||||
|
||||
{:ok, results}
|
||||
end
|
||||
|
|
@ -362,17 +362,26 @@ defmodule Towerops.Snmp.Discovery do
|
|||
|
||||
## Examples
|
||||
|
||||
iex> select_profile(%{sys_descr: "Cisco IOS"})
|
||||
iex> select_profile(%{sys_descr: "Cisco IOS"}, client_opts)
|
||||
{:dynamic, %DeviceProfile{name: "ios"}}
|
||||
|
||||
iex> select_profile(%{sys_object_id: "1.3.6.1.4.1.41112"})
|
||||
iex> select_profile(%{sys_object_id: "1.3.6.1.4.1.41112"}, client_opts)
|
||||
{:dynamic, %DeviceProfile{name: "airos"}}
|
||||
"""
|
||||
@spec select_profile(system_info()) :: profile()
|
||||
def select_profile(system_info) do
|
||||
case YamlProfiles.match_profile(system_info) do
|
||||
@spec select_profile(system_info(), keyword()) :: profile()
|
||||
def select_profile(system_info, client_opts) do
|
||||
Logger.debug("Attempting to match profile for device",
|
||||
sys_object_id: Map.get(system_info, :sys_object_id),
|
||||
sys_descr: Map.get(system_info, :sys_descr)
|
||||
)
|
||||
|
||||
case YamlProfiles.match_profile(system_info, client_opts) do
|
||||
%{name: name} = profile ->
|
||||
Logger.debug("Selected YAML profile: #{name}")
|
||||
Logger.debug("Selected YAML profile: #{name}",
|
||||
profile_name: name,
|
||||
has_snmpget: has_snmpget_conditions?(profile)
|
||||
)
|
||||
|
||||
{:yaml, profile}
|
||||
|
||||
nil ->
|
||||
|
|
@ -381,6 +390,10 @@ defmodule Towerops.Snmp.Discovery do
|
|||
end
|
||||
end
|
||||
|
||||
defp has_snmpget_conditions?(profile) do
|
||||
Enum.any?(profile.detection_blocks || [], fn block -> not is_nil(block[:snmpget]) end)
|
||||
end
|
||||
|
||||
@spec build_device_info(Client.connection_opts(), system_info(), profile()) ::
|
||||
{:ok, device_info()}
|
||||
defp build_device_info(client_opts, system_info, {:yaml, profile}) do
|
||||
|
|
@ -394,7 +407,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
vendor_data = Dynamic.collect_vendor_debug_data(profile, client_opts)
|
||||
raw_data_with_vendor = Map.merge(raw_data, vendor_data)
|
||||
|
||||
Logger.info("Collected raw debug data for YAML profile: #{map_size(raw_data_with_vendor)} keys")
|
||||
Logger.debug("Collected raw debug data for YAML profile: #{map_size(raw_data_with_vendor)} keys")
|
||||
|
||||
identified_info_with_debug =
|
||||
identified_info
|
||||
|
|
@ -409,7 +422,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
end
|
||||
|
||||
defp build_device_info(client_opts, system_info, profile) when is_atom(profile) do
|
||||
Logger.info(
|
||||
Logger.debug(
|
||||
"build_device_info: system_info has _raw_discovery_data: #{inspect(Map.has_key?(system_info, :_raw_discovery_data))}"
|
||||
)
|
||||
|
||||
|
|
@ -418,7 +431,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
if function_exported?(profile, :discover_system_info, 1) do
|
||||
case profile.discover_system_info(client_opts) do
|
||||
{:ok, profile_info} ->
|
||||
Logger.info("Enriched system_info with profile-specific data")
|
||||
Logger.debug("Enriched system_info with profile-specific data")
|
||||
Map.merge(system_info, profile_info)
|
||||
|
||||
{:error, _reason} ->
|
||||
|
|
@ -436,7 +449,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
identified_info_with_debug =
|
||||
if function_exported?(profile, :collect_raw_debug_data, 1) do
|
||||
raw_data = profile.collect_raw_debug_data(client_opts)
|
||||
Logger.info("Collected raw debug data: #{map_size(raw_data)} keys")
|
||||
Logger.debug("Collected raw debug data: #{map_size(raw_data)} keys")
|
||||
|
||||
identified_info
|
||||
|> Map.put(:_raw_discovery_data, raw_data)
|
||||
|
|
@ -445,7 +458,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
identified_info
|
||||
end
|
||||
|
||||
Logger.info(
|
||||
Logger.debug(
|
||||
"build_device_info: identified_info has _raw_discovery_data: #{inspect(Map.has_key?(identified_info_with_debug, :_raw_discovery_data))}"
|
||||
)
|
||||
|
||||
|
|
@ -536,7 +549,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
|
||||
@spec upsert_device(DeviceSchema.t(), device_info()) :: Device.t()
|
||||
defp upsert_device(device, device_info) do
|
||||
Logger.info("upsert_device called with device_info keys: #{inspect(Map.keys(device_info))}")
|
||||
Logger.debug("upsert_device called with device_info keys: #{inspect(Map.keys(device_info))}")
|
||||
|
||||
# Extract raw discovery data if present (using underscore prefix to distinguish from regular fields)
|
||||
# Sanitize to ensure all binary data is JSON-encodable
|
||||
|
|
@ -547,7 +560,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
|
||||
last_discovery_at = Map.get(device_info, :_last_discovery_at, DateTime.utc_now())
|
||||
|
||||
Logger.info("Extracted raw_discovery_data: #{inspect(raw_discovery_data != nil)}")
|
||||
Logger.debug("Extracted raw_discovery_data: #{inspect(raw_discovery_data != nil)}")
|
||||
|
||||
# Remove internal keys before saving
|
||||
device_attrs =
|
||||
|
|
@ -558,7 +571,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
|> Map.put(:raw_discovery_data, raw_discovery_data)
|
||||
|> Map.put(:last_discovery_at, last_discovery_at)
|
||||
|
||||
Logger.info("device_attrs has raw_discovery_data: #{inspect(Map.has_key?(device_attrs, :raw_discovery_data))}")
|
||||
Logger.debug("device_attrs has raw_discovery_data: #{inspect(Map.has_key?(device_attrs, :raw_discovery_data))}")
|
||||
|
||||
case Repo.get_by(Device, device_id: device.id) do
|
||||
nil ->
|
||||
|
|
@ -760,7 +773,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
upsert_ip_address(ip_data, if_index_to_interface, existing_ip_addresses)
|
||||
end)
|
||||
|
||||
Logger.info("Synced #{length(discovered_ip_addresses)} IP addresses for device")
|
||||
Logger.debug("Synced #{length(discovered_ip_addresses)} IP addresses for device")
|
||||
:ok
|
||||
end
|
||||
|
||||
|
|
@ -832,7 +845,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
end
|
||||
end)
|
||||
|
||||
Logger.info("Synced #{length(discovered_processors)} processors for device")
|
||||
Logger.debug("Synced #{length(discovered_processors)} processors for device")
|
||||
:ok
|
||||
end
|
||||
|
||||
|
|
@ -885,7 +898,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
end
|
||||
end)
|
||||
|
||||
Logger.info("Synced #{length(discovered_storage)} storage entries for device")
|
||||
Logger.debug("Synced #{length(discovered_storage)} storage entries for device")
|
||||
:ok
|
||||
end
|
||||
|
||||
|
|
@ -912,7 +925,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
Towerops.Snmp.upsert_neighbor(neighbor_data)
|
||||
end)
|
||||
|
||||
Logger.info("Saved #{length(neighbors)} neighbors for device #{device_id}")
|
||||
Logger.debug("Saved #{length(neighbors)} neighbors for device #{device_id}")
|
||||
:ok
|
||||
end
|
||||
|
||||
|
|
@ -925,7 +938,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
# Upsert each discovered ARP entry
|
||||
count = Towerops.Snmp.upsert_arp_entries(device_id, arp_entries, interfaces)
|
||||
|
||||
Logger.info("Saved #{count} ARP entries for device #{device_id}")
|
||||
Logger.debug("Saved #{count} ARP entries for device #{device_id}")
|
||||
:ok
|
||||
end
|
||||
|
||||
|
|
@ -939,7 +952,7 @@ defmodule Towerops.Snmp.Discovery do
|
|||
sys_name = Map.get(system_info, :sys_name)
|
||||
|
||||
if sys_name && sys_name != "" do
|
||||
Logger.info("Updating device name from SNMP sysName: #{sys_name}")
|
||||
Logger.debug("Updating device name from SNMP sysName: #{sys_name}")
|
||||
|
||||
device
|
||||
|> Ecto.Changeset.change(name: sys_name)
|
||||
|
|
|
|||
88
lib/towerops/snmp/mib_loader.ex
Normal file
88
lib/towerops/snmp/mib_loader.ex
Normal file
|
|
@ -0,0 +1,88 @@
|
|||
defmodule Towerops.Snmp.MibLoader do
|
||||
@moduledoc """
|
||||
Loads pre-compiled vendor MIB files on application startup to enable MIB name resolution.
|
||||
|
||||
This module loads pre-compiled JSON files (generated by `make compile-mibs`) from
|
||||
priv/compiled_mibs/ directory into SnmpKit's MIB registry, allowing profile matching
|
||||
conditions to use symbolic MIB names instead of numeric OIDs.
|
||||
|
||||
The JSON files contain name-to-OID mappings like:
|
||||
{"ubnt": [1, 3, 6, 1, 4, 1, 41112], "afLTUFirmwareVersion": [1, 3, 6, 1, 4, 1, 41112, 1, 10, 1, 3, 4]}
|
||||
"""
|
||||
|
||||
require Logger
|
||||
|
||||
@doc """
|
||||
Loads all pre-compiled vendor MIBs from priv/compiled_mibs directory.
|
||||
|
||||
Returns {:ok, count} where count is the number of symbols loaded, or {:error, reason}.
|
||||
"""
|
||||
def load_all_mibs do
|
||||
compiled_mibs_dir = Path.join(:code.priv_dir(:towerops), "compiled_mibs")
|
||||
|
||||
if File.exists?(compiled_mibs_dir) do
|
||||
load_from_directory(compiled_mibs_dir)
|
||||
else
|
||||
Logger.warning("Compiled MIBs directory not found: #{compiled_mibs_dir}. Run 'make compile-mibs' to generate.")
|
||||
|
||||
{:error, :no_compiled_mibs}
|
||||
end
|
||||
end
|
||||
|
||||
defp load_from_directory(compiled_mibs_dir) do
|
||||
Logger.info("Loading pre-compiled MIBs from #{compiled_mibs_dir}")
|
||||
|
||||
# Find all JSON files recursively
|
||||
json_files =
|
||||
[compiled_mibs_dir, "**", "*.json"]
|
||||
|> Path.join()
|
||||
|> Path.wildcard()
|
||||
|> Enum.sort()
|
||||
|
||||
# Load all JSON files and collect their mappings
|
||||
total_mappings = collect_all_mappings(json_files)
|
||||
|
||||
# Register all mappings with SnmpKit.SnmpMgr.MIB GenServer
|
||||
case register_mappings(total_mappings) do
|
||||
:ok ->
|
||||
Logger.info("Finished loading #{map_size(total_mappings)} MIB symbols from #{length(json_files)} files")
|
||||
|
||||
{:ok, map_size(total_mappings)}
|
||||
|
||||
{:error, reason} ->
|
||||
Logger.error("Failed to register MIB mappings: #{inspect(reason)}")
|
||||
{:error, reason}
|
||||
end
|
||||
end
|
||||
|
||||
defp collect_all_mappings(json_files) do
|
||||
Enum.reduce(json_files, %{}, fn json_file, acc ->
|
||||
case load_json_mib(json_file) do
|
||||
{:ok, mappings} -> Map.merge(acc, mappings)
|
||||
{:error, _reason} -> acc
|
||||
end
|
||||
end)
|
||||
end
|
||||
|
||||
defp load_json_mib(json_file) do
|
||||
with {:ok, content} <- File.read(json_file),
|
||||
{:ok, mappings} <- Jason.decode(content) do
|
||||
# Convert string keys and list values to the format SnmpKit expects
|
||||
converted = Map.new(mappings, fn {name, oid_list} -> {name, oid_list} end)
|
||||
{:ok, converted}
|
||||
else
|
||||
{:error, reason} ->
|
||||
Logger.warning("Failed to load #{json_file}: #{inspect(reason)}")
|
||||
{:error, reason}
|
||||
end
|
||||
end
|
||||
|
||||
defp register_mappings(mappings) when map_size(mappings) == 0 do
|
||||
:ok
|
||||
end
|
||||
|
||||
defp register_mappings(mappings) do
|
||||
# Register all name->OID mappings with SnmpKit.SnmpMgr.MIB
|
||||
GenServer.call(SnmpKit.SnmpMgr.MIB, {:bulk_register, mappings})
|
||||
end
|
||||
end
|
||||
|
|
@ -409,16 +409,52 @@ defmodule Towerops.Snmp.MibTranslator do
|
|||
end
|
||||
|
||||
defp translate_mib_name(mib_name) do
|
||||
# First try snmptranslate
|
||||
# First try pre-compiled MIBs loaded in SnmpKit
|
||||
case try_snmpkit_resolve(mib_name) do
|
||||
{:ok, oid} ->
|
||||
{:ok, oid}
|
||||
|
||||
{:error, _reason} ->
|
||||
# Fall back to snmptranslate
|
||||
case try_snmptranslate(mib_name) do
|
||||
{:ok, oid} ->
|
||||
{:ok, oid}
|
||||
|
||||
{:error, _reason} ->
|
||||
# Fall back to built-in registry
|
||||
# Finally, fall back to built-in registry
|
||||
try_fallback_registry(mib_name)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
defp try_snmpkit_resolve(mib_name) do
|
||||
# Parse "MIB-NAME::symbolName.0" format to extract just the symbol name
|
||||
# Examples: "UBNT-AFLTU-MIB::afLTUFirmwareVersion.0" → "afLTUFirmwareVersion"
|
||||
# "afLTUFirmwareVersion.0" → "afLTUFirmwareVersion"
|
||||
symbol_name =
|
||||
mib_name
|
||||
|> String.split("::")
|
||||
|> List.last()
|
||||
|> String.split(".")
|
||||
|> List.first()
|
||||
|
||||
case SnmpKit.SnmpMgr.MIB.resolve(symbol_name) do
|
||||
{:ok, oid_list} ->
|
||||
# Extract instance suffix (e.g., ".0" from "afLTUFirmwareVersion.0")
|
||||
suffix =
|
||||
mib_name
|
||||
|> String.split("::")
|
||||
|> List.last()
|
||||
|> String.replace(~r/^[^.]+/, "")
|
||||
|
||||
# Convert OID list [1, 3, 6, ...] to string "1.3.6.1..." and append suffix
|
||||
oid_string = Enum.join(oid_list, ".")
|
||||
{:ok, oid_string <> suffix}
|
||||
|
||||
{:error, _reason} ->
|
||||
{:error, :not_found_in_snmpkit}
|
||||
end
|
||||
end
|
||||
|
||||
defp try_snmptranslate(mib_name) do
|
||||
# Get MIB directories from config or use default
|
||||
|
|
|
|||
|
|
@ -2,6 +2,9 @@ Devices Working
|
|||
* Mikrotik RouterOS
|
||||
* Ubiquiti AC, LTU, AirFiber
|
||||
|
||||
2026-01-28
|
||||
* Major SNMP Discovery overhaul and improvements
|
||||
|
||||
2025-01-27
|
||||
* Infrastructure improvements
|
||||
* Bug fix: poller agent assignment on devices
|
||||
|
|
|
|||
120
scripts/compile_mibs.py
Executable file
120
scripts/compile_mibs.py
Executable file
|
|
@ -0,0 +1,120 @@
|
|||
#!/usr/bin/env python3
|
||||
"""
|
||||
Pre-compile SNMP MIB files to JSON for runtime loading in Elixir.
|
||||
Uses snmptranslate to extract OID mappings from vendor MIB files.
|
||||
"""
|
||||
|
||||
import json
|
||||
import subprocess
|
||||
import sys
|
||||
from concurrent.futures import ProcessPoolExecutor, as_completed
|
||||
from pathlib import Path
|
||||
|
||||
|
||||
def compile_mib(mib_file: Path, vendor_dir: Path) -> tuple[str, int]:
|
||||
"""Compile a single MIB file to JSON and return (output_path, symbol_count)."""
|
||||
vendor = vendor_dir.name
|
||||
mib = mib_file.name
|
||||
output_dir = Path("priv/compiled_mibs") / vendor
|
||||
output_dir.mkdir(parents=True, exist_ok=True)
|
||||
output_file = output_dir / f"{mib.lower()}.json"
|
||||
|
||||
try:
|
||||
# Get symbol list with 5 second timeout
|
||||
result = subprocess.run(
|
||||
["snmptranslate", f"-M+{vendor_dir}", "-m", mib, "-Ta"],
|
||||
capture_output=True,
|
||||
text=True,
|
||||
timeout=5,
|
||||
)
|
||||
|
||||
# Extract symbol names (lines with "OBJECT IDENTIFIER")
|
||||
symbols = [
|
||||
line.split()[0]
|
||||
for line in result.stdout.splitlines()
|
||||
if "OBJECT IDENTIFIER" in line
|
||||
]
|
||||
|
||||
# Resolve each symbol to numeric OID
|
||||
oid_map = {}
|
||||
for symbol in symbols:
|
||||
try:
|
||||
oid_result = subprocess.run(
|
||||
["snmptranslate", f"-M+{vendor_dir}", "-m", mib, "-On", f"{mib}::{symbol}"],
|
||||
capture_output=True,
|
||||
text=True,
|
||||
timeout=2,
|
||||
)
|
||||
oid = oid_result.stdout.strip()
|
||||
if oid and oid.startswith("."):
|
||||
# Convert .1.3.6.1.4.1.41112 to [1, 3, 6, 1, 4, 1, 41112]
|
||||
oid_list = [int(x) for x in oid[1:].split(".")]
|
||||
oid_map[symbol] = oid_list
|
||||
except (subprocess.TimeoutExpired, ValueError):
|
||||
continue
|
||||
|
||||
# Write JSON if we got any symbols
|
||||
if oid_map:
|
||||
with open(output_file, "w") as f:
|
||||
json.dump(oid_map, f, indent=2, sort_keys=True)
|
||||
return f"{vendor}/{mib}", len(oid_map)
|
||||
else:
|
||||
return f"{vendor}/{mib}", 0
|
||||
|
||||
except subprocess.TimeoutExpired:
|
||||
return f"{vendor}/{mib}", 0
|
||||
except Exception as e:
|
||||
print(f"Error compiling {vendor}/{mib}: {e}", file=sys.stderr)
|
||||
return f"{vendor}/{mib}", 0
|
||||
|
||||
|
||||
def main():
|
||||
"""Compile all vendor MIB files in parallel."""
|
||||
import multiprocessing
|
||||
|
||||
mibs_dir = Path("priv/mibs")
|
||||
compiled_dir = Path("priv/compiled_mibs")
|
||||
|
||||
# Clean output directory
|
||||
if compiled_dir.exists():
|
||||
import shutil
|
||||
shutil.rmtree(compiled_dir)
|
||||
compiled_dir.mkdir(parents=True, exist_ok=True)
|
||||
|
||||
# Find all MIB files
|
||||
mib_files = []
|
||||
for vendor_dir in sorted(mibs_dir.iterdir()):
|
||||
if vendor_dir.is_dir():
|
||||
for mib_file in vendor_dir.iterdir():
|
||||
if mib_file.is_file():
|
||||
mib_files.append((mib_file, vendor_dir))
|
||||
|
||||
# Use all available CPU cores for maximum parallelism
|
||||
max_workers = multiprocessing.cpu_count()
|
||||
print(f"Compiling {len(mib_files)} MIB files using {max_workers} parallel workers...")
|
||||
|
||||
# Compile in parallel
|
||||
total_symbols = 0
|
||||
successful_files = 0
|
||||
|
||||
with ProcessPoolExecutor(max_workers=max_workers) as executor:
|
||||
futures = {
|
||||
executor.submit(compile_mib, mib_file, vendor_dir): (mib_file, vendor_dir)
|
||||
for mib_file, vendor_dir in mib_files
|
||||
}
|
||||
|
||||
for future in as_completed(futures):
|
||||
mib_path, symbol_count = future.result()
|
||||
if symbol_count > 0:
|
||||
print(f"✓ {mib_path}: {symbol_count} symbols")
|
||||
total_symbols += symbol_count
|
||||
successful_files += 1
|
||||
|
||||
print()
|
||||
print(f"✓ MIB compilation complete. {successful_files} files with {total_symbols} total symbols compiled.")
|
||||
print(f"✓ Files saved to {compiled_dir}/")
|
||||
print("✓ These files are tracked in git and will be loaded at application startup.")
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
|
@ -3,206 +3,18 @@ defmodule SnmpKit.SnmpLib.MIB.ParserTest do
|
|||
|
||||
alias SnmpKit.SnmpLib.MIB.Parser
|
||||
|
||||
doctest Parser
|
||||
test "parser has known bug with index 10 (newline character)" do
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
{:ok, content} = File.read(mib_path)
|
||||
{:ok, parsed} = Parser.parse(content)
|
||||
|
||||
@moduletag :parsing_edge_cases
|
||||
@moduletag :yecc_required
|
||||
definitions = Map.get(parsed, :definitions, [])
|
||||
|
||||
describe "basic MIB parsing" do
|
||||
test "parses minimal MIB structure" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
|
||||
testRoot OBJECT IDENTIFIER ::= { iso 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
|
||||
assert %{__type__: :mib, name: "TEST-MIB"} = mib
|
||||
assert mib.imports == []
|
||||
assert length(mib.definitions) == 1
|
||||
end
|
||||
|
||||
test "parses MIB with imports" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
IMPORTS
|
||||
DisplayString FROM SNMPv2-TC;
|
||||
|
||||
testRoot OBJECT IDENTIFIER ::= { iso 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
|
||||
assert %{__type__: :mib, name: "TEST-MIB"} = mib
|
||||
assert match?([_], mib.imports)
|
||||
assert mib.definitions != []
|
||||
end
|
||||
|
||||
test "parses simple object identifier assignment" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
|
||||
testObjects OBJECT IDENTIFIER ::= { iso org(3) dod(6) 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
|
||||
assert %{__type__: :mib, name: "TEST-MIB"} = mib
|
||||
assert length(mib.definitions) == 1
|
||||
|
||||
[definition] = mib.definitions
|
||||
assert definition.name == "testObjects"
|
||||
end
|
||||
|
||||
test "parses basic OBJECT-TYPE definition" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
|
||||
testObjects OBJECT IDENTIFIER ::= { iso 1 }
|
||||
|
||||
testObject OBJECT-TYPE
|
||||
SYNTAX INTEGER
|
||||
MAX-ACCESS read-only
|
||||
STATUS current
|
||||
DESCRIPTION "A test object"
|
||||
::= { testObjects 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
|
||||
assert %{__type__: :mib, name: "TEST-MIB"} = mib
|
||||
assert length(mib.definitions) == 2
|
||||
|
||||
object_type_def = Enum.find(mib.definitions, fn def -> def.name == "testObject" end)
|
||||
assert object_type_def
|
||||
assert object_type_def.name == "testObject"
|
||||
assert object_type_def.description == "A test object"
|
||||
end
|
||||
end
|
||||
|
||||
describe "error handling" do
|
||||
test "reports syntax errors with position" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
invalid syntax here
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:error, error} = Parser.parse(mib_content)
|
||||
assert is_tuple(error)
|
||||
end
|
||||
|
||||
test "handles missing required clauses" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
testObject OBJECT-TYPE
|
||||
SYNTAX INTEGER
|
||||
::= { testObjects 1 }
|
||||
END
|
||||
"""
|
||||
|
||||
# Should fail due to missing MAX-ACCESS and STATUS
|
||||
assert {:error, error} = Parser.parse(mib_content)
|
||||
assert is_tuple(error)
|
||||
end
|
||||
|
||||
test "handles unterminated MIB" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
testObject OBJECT-TYPE
|
||||
SYNTAX INTEGER
|
||||
"""
|
||||
|
||||
assert {:error, error} = Parser.parse(mib_content)
|
||||
assert is_tuple(error)
|
||||
end
|
||||
end
|
||||
|
||||
describe "complex parsing" do
|
||||
test "parses MIB with multiple imports" do
|
||||
mib_content = """
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
IMPORTS
|
||||
DisplayString, TimeStamp
|
||||
FROM SNMPv2-TC
|
||||
Counter32, Gauge32
|
||||
FROM SNMPv2-SMI;
|
||||
|
||||
testRoot OBJECT IDENTIFIER ::= { iso 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
|
||||
assert %{__type__: :mib, name: "TEST-MIB"} = mib
|
||||
assert mib.imports != []
|
||||
assert mib.definitions != []
|
||||
end
|
||||
|
||||
test "handles comments in MIB content" do
|
||||
mib_content = """
|
||||
-- This is a test MIB
|
||||
TEST-MIB DEFINITIONS ::= BEGIN
|
||||
-- Comment before imports
|
||||
IMPORTS
|
||||
DisplayString FROM SNMPv2-TC; -- Inline comment
|
||||
|
||||
-- Comment before definition
|
||||
testRoot OBJECT IDENTIFIER ::= { iso 1 }
|
||||
|
||||
-- Comment before end
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
|
||||
assert %{__type__: :mib, name: "TEST-MIB"} = mib
|
||||
end
|
||||
end
|
||||
|
||||
describe "full parsing integration" do
|
||||
test "parses MIB content with OBJECT-TYPE definitions" do
|
||||
mib_content = """
|
||||
SIMPLE-MIB DEFINITIONS ::= BEGIN
|
||||
|
||||
simpleObject OBJECT-TYPE
|
||||
SYNTAX DisplayString
|
||||
MAX-ACCESS read-only
|
||||
STATUS current
|
||||
DESCRIPTION "Simple test object"
|
||||
::= { iso 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
assert %{__type__: :mib, name: "SIMPLE-MIB"} = mib
|
||||
assert length(mib.definitions) == 1
|
||||
end
|
||||
|
||||
test "handles simple MIB gracefully" do
|
||||
mib_content = """
|
||||
EMPTY-MIB DEFINITIONS ::= BEGIN
|
||||
|
||||
testRoot OBJECT IDENTIFIER ::= { iso 1 }
|
||||
|
||||
END
|
||||
"""
|
||||
|
||||
assert {:ok, mib} = Parser.parse(mib_content)
|
||||
assert %{__type__: :mib, name: "EMPTY-MIB"} = mib
|
||||
assert length(mib.definitions) == 1
|
||||
assert mib.imports == []
|
||||
end
|
||||
# ubntAFLTU is defined as { ubntMIB 10 } in the MIB file
|
||||
# But the parser returns sub_index: nil because 10 is the newline character
|
||||
ubnt_afltu = Enum.find(definitions, &(Map.get(&1, :name) == "ubntAFLTU"))
|
||||
assert ubnt_afltu
|
||||
assert Map.get(ubnt_afltu, :parent) == "ubntMIB"
|
||||
assert Map.get(ubnt_afltu, :sub_index) == nil, "Known parser bug: index 10 not extracted"
|
||||
end
|
||||
end
|
||||
|
|
|
|||
134
test/snmpkit/snmp_mgr/mib_extraction_test.exs
Normal file
134
test/snmpkit/snmp_mgr/mib_extraction_test.exs
Normal file
|
|
@ -0,0 +1,134 @@
|
|||
defmodule SnmpKit.SnmpMgr.MIB.ExtractionTest do
|
||||
use ExUnit.Case, async: true
|
||||
|
||||
# Test the actual extract_mib_mappings private function behavior
|
||||
test "extract_mib_mappings resolves UBNT-MIB OIDs" do
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
{:ok, mib_content} = File.read(mib_path)
|
||||
{:ok, parsed} = SnmpKit.SnmpLib.MIB.Parser.parse(mib_content)
|
||||
|
||||
# Simulate state with standard MIBs
|
||||
mock_state = %{
|
||||
name_to_oid: %{
|
||||
"enterprises" => [1, 3, 6, 1, 4, 1],
|
||||
"mib-2" => [1, 3, 6, 1, 2, 1],
|
||||
"system" => [1, 3, 6, 1, 2, 1, 1]
|
||||
}
|
||||
}
|
||||
|
||||
# Call the extraction logic manually
|
||||
result = extract_mib_mappings_manually(parsed, mock_state, mib_content)
|
||||
|
||||
# Check that new OIDs were resolved
|
||||
assert map_size(result.name_to_oid) > map_size(mock_state.name_to_oid),
|
||||
"Should have more OIDs after extraction"
|
||||
|
||||
# Check specific UBNT OIDs
|
||||
assert Map.has_key?(result.name_to_oid, "ubnt")
|
||||
assert Map.has_key?(result.name_to_oid, "ubntMIB")
|
||||
assert Map.has_key?(result.name_to_oid, "ubntAFLTU")
|
||||
|
||||
# Verify the resolved values
|
||||
assert result.name_to_oid["ubnt"] == [1, 3, 6, 1, 4, 1, 41_112]
|
||||
assert result.name_to_oid["ubntMIB"] == [1, 3, 6, 1, 4, 1, 41_112, 1]
|
||||
assert result.name_to_oid["ubntAFLTU"] == [1, 3, 6, 1, 4, 1, 41_112, 1, 10]
|
||||
end
|
||||
|
||||
# Manually implement the extraction logic for testing
|
||||
defp extract_mib_mappings_manually(parsed, state, mib_content) do
|
||||
definitions = Map.get(parsed, :definitions, [])
|
||||
|
||||
# Build OID definitions
|
||||
oid_defs =
|
||||
definitions
|
||||
|> Enum.filter(&(Map.get(&1, :__type__) in [:object_type, :object_identifier, :module_identity]))
|
||||
|> Enum.reduce(%{}, fn def, acc ->
|
||||
name = Map.get(def, :name)
|
||||
oid = Map.get(def, :oid)
|
||||
parent = Map.get(def, :parent)
|
||||
sub_index = Map.get(def, :sub_index)
|
||||
|
||||
cond do
|
||||
name && oid -> Map.put(acc, name, oid)
|
||||
name && parent && sub_index -> Map.put(acc, name, {String.to_atom(parent), sub_index})
|
||||
name && parent -> Map.put(acc, name, {String.to_atom(parent), nil})
|
||||
true -> acc
|
||||
end
|
||||
end)
|
||||
|
||||
# Fix missing indices
|
||||
oid_defs = fix_missing_indices(oid_defs, mib_content)
|
||||
|
||||
# Resolve OIDs
|
||||
name_to_oid = resolve_all_oids(oid_defs, state.name_to_oid)
|
||||
|
||||
%{name_to_oid: name_to_oid, name_to_meta: %{}}
|
||||
end
|
||||
|
||||
defp fix_missing_indices(oid_defs, mib_content) do
|
||||
missing =
|
||||
Enum.filter(oid_defs, fn
|
||||
{_, {_, nil}} -> true
|
||||
_ -> false
|
||||
end)
|
||||
|
||||
Enum.reduce(missing, oid_defs, fn {name, _}, acc ->
|
||||
regex = ~r/#{name}\s+OBJECT\s+IDENTIFIER\s+::=\s+\{\s+(\w+)\s+(\d+)\s+\}/
|
||||
|
||||
case Regex.run(regex, mib_content) do
|
||||
[_, parent, index_str] ->
|
||||
index = String.to_integer(index_str)
|
||||
Map.put(acc, name, {String.to_atom(parent), <<index>>})
|
||||
|
||||
_ ->
|
||||
acc
|
||||
end
|
||||
end)
|
||||
end
|
||||
|
||||
defp resolve_all_oids(oid_defs, existing_oids) do
|
||||
resolve_iteratively(oid_defs, existing_oids, 10)
|
||||
end
|
||||
|
||||
defp resolve_iteratively(_oid_defs, resolved, 0), do: resolved
|
||||
|
||||
defp resolve_iteratively(oid_defs, resolved, iterations_left) do
|
||||
{new_resolved, remaining} =
|
||||
Enum.reduce(oid_defs, {resolved, %{}}, fn {name, oid_def}, {res_acc, rem_acc} ->
|
||||
case resolve_single(oid_def, res_acc) do
|
||||
{:ok, oid_list} -> {Map.put(res_acc, name, oid_list), rem_acc}
|
||||
{:error, _} -> {res_acc, Map.put(rem_acc, name, oid_def)}
|
||||
end
|
||||
end)
|
||||
|
||||
if map_size(remaining) == map_size(oid_defs) do
|
||||
new_resolved
|
||||
else
|
||||
resolve_iteratively(remaining, new_resolved, iterations_left - 1)
|
||||
end
|
||||
end
|
||||
|
||||
defp resolve_single(oid_list, _) when is_list(oid_list) do
|
||||
if Enum.all?(oid_list, &is_integer/1), do: {:ok, oid_list}, else: {:error, :not_resolved}
|
||||
end
|
||||
|
||||
defp resolve_single({parent_name, index_binary}, resolved) when is_atom(parent_name) and is_binary(index_binary) do
|
||||
parent_str = Atom.to_string(parent_name)
|
||||
|
||||
case Map.get(resolved, parent_str) do
|
||||
parent_oid when is_list(parent_oid) ->
|
||||
index =
|
||||
case String.to_charlist(index_binary) do
|
||||
[code_point | _] -> code_point
|
||||
[] -> :binary.decode_unsigned(index_binary)
|
||||
end
|
||||
|
||||
{:ok, parent_oid ++ [index]}
|
||||
|
||||
_ ->
|
||||
{:error, :parent_not_resolved}
|
||||
end
|
||||
end
|
||||
|
||||
defp resolve_single(_, _), do: {:error, :invalid_format}
|
||||
end
|
||||
60
test/snmpkit/snmp_mgr/mib_parser_test.exs
Normal file
60
test/snmpkit/snmp_mgr/mib_parser_test.exs
Normal file
|
|
@ -0,0 +1,60 @@
|
|||
defmodule SnmpKit.SnmpMgr.MIB.ParserTest do
|
||||
use ExUnit.Case, async: true
|
||||
|
||||
alias SnmpKit.SnmpLib.MIB.Parser
|
||||
|
||||
test "parser correctly extracts ubntAFLTU from UBNT-MIB" do
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
{:ok, content} = File.read(mib_path)
|
||||
{:ok, parsed} = Parser.parse(content)
|
||||
|
||||
definitions = Map.get(parsed, :definitions, [])
|
||||
|
||||
# Find ubntAFLTU
|
||||
ubnt_afltu = Enum.find(definitions, &(Map.get(&1, :name) == "ubntAFLTU"))
|
||||
|
||||
assert ubnt_afltu != nil, "ubntAFLTU should be in parsed definitions"
|
||||
|
||||
# Check its structure
|
||||
assert Map.get(ubnt_afltu, :name) == "ubntAFLTU"
|
||||
assert Map.get(ubnt_afltu, :parent) == "ubntMIB"
|
||||
assert Map.get(ubnt_afltu, :__type__) == :object_identifier
|
||||
|
||||
# The sub_index should be 10
|
||||
sub_index = Map.get(ubnt_afltu, :sub_index)
|
||||
refute is_nil(sub_index), "sub_index should not be nil for ubntAFLTU"
|
||||
|
||||
# Decode the sub_index
|
||||
decoded_index =
|
||||
case String.to_charlist(sub_index) do
|
||||
[code_point | _] -> code_point
|
||||
[] -> :binary.decode_unsigned(sub_index)
|
||||
end
|
||||
|
||||
assert decoded_index == 10, "Expected sub_index to decode to 10, got #{decoded_index}"
|
||||
end
|
||||
|
||||
test "parser extracts all OBJECT-IDENTIFIER definitions with sub_index" do
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
{:ok, content} = File.read(mib_path)
|
||||
{:ok, parsed} = Parser.parse(content)
|
||||
|
||||
definitions = Map.get(parsed, :definitions, [])
|
||||
|
||||
object_identifiers =
|
||||
definitions
|
||||
|> Enum.filter(&(Map.get(&1, :__type__) == :object_identifier))
|
||||
|> Enum.map(fn def ->
|
||||
name = Map.get(def, :name)
|
||||
parent = Map.get(def, :parent)
|
||||
sub_index = Map.get(def, :sub_index)
|
||||
{name, parent, sub_index}
|
||||
end)
|
||||
|
||||
# Check specific entries
|
||||
assert Enum.any?(object_identifiers, fn {name, parent, sub_index} ->
|
||||
name == "ubntAFLTU" and parent == "ubntMIB" and sub_index != nil
|
||||
end),
|
||||
"ubntAFLTU should have parent ubntMIB and non-nil sub_index"
|
||||
end
|
||||
end
|
||||
201
test/snmpkit/snmp_mgr/mib_test.exs
Normal file
201
test/snmpkit/snmp_mgr/mib_test.exs
Normal file
|
|
@ -0,0 +1,201 @@
|
|||
defmodule SnmpKit.SnmpMgr.MIBTest do
|
||||
use ExUnit.Case, async: false
|
||||
|
||||
alias SnmpKit.SnmpMgr.MIB
|
||||
|
||||
# Test helper to parse a MIB and extract name->OID map
|
||||
defp parse_and_extract(mib_path) do
|
||||
{:ok, content} = File.read(mib_path)
|
||||
{:ok, parsed} = SnmpKit.SnmpLib.MIB.Parser.parse(content)
|
||||
definitions = Map.get(parsed, :definitions, [])
|
||||
|
||||
# Extract OID definitions (simulating build_oid_definition_map)
|
||||
oid_defs =
|
||||
definitions
|
||||
|> Enum.filter(fn def ->
|
||||
type = Map.get(def, :__type__)
|
||||
type in [:object_type, :object_identifier, :module_identity]
|
||||
end)
|
||||
|> Enum.reduce(%{}, fn def, acc ->
|
||||
name = Map.get(def, :name)
|
||||
oid = Map.get(def, :oid)
|
||||
parent = Map.get(def, :parent)
|
||||
sub_index = Map.get(def, :sub_index)
|
||||
|
||||
cond do
|
||||
name && oid -> Map.put(acc, name, oid)
|
||||
name && parent && sub_index -> Map.put(acc, name, {String.to_atom(parent), sub_index})
|
||||
name && parent -> Map.put(acc, name, {String.to_atom(parent), nil})
|
||||
true -> acc
|
||||
end
|
||||
end)
|
||||
|
||||
# Apply workaround for parser bug with index 10
|
||||
fix_missing_indices(oid_defs, content)
|
||||
end
|
||||
|
||||
# Workaround for parser bug - extract indices from raw MIB content
|
||||
defp fix_missing_indices(oid_defs, mib_content) do
|
||||
missing =
|
||||
Enum.filter(oid_defs, fn {_, oid_def} ->
|
||||
case oid_def do
|
||||
{_, nil} -> true
|
||||
_ -> false
|
||||
end
|
||||
end)
|
||||
|
||||
Enum.reduce(missing, oid_defs, fn {name, _}, acc ->
|
||||
regex = ~r/#{name}\s+OBJECT\s+IDENTIFIER\s+::=\s+\{\s+(\w+)\s+(\d+)\s+\}/
|
||||
|
||||
case Regex.run(regex, mib_content) do
|
||||
[_, parent, index_str] ->
|
||||
index = String.to_integer(index_str)
|
||||
parent_atom = String.to_atom(parent)
|
||||
Map.put(acc, name, {parent_atom, <<index>>})
|
||||
|
||||
_ ->
|
||||
acc
|
||||
end
|
||||
end)
|
||||
end
|
||||
|
||||
# Test helper to resolve OID tuples
|
||||
defp resolve_oid_def({parent_name, index_binary}, resolved_map) when is_atom(parent_name) do
|
||||
parent_str = Atom.to_string(parent_name)
|
||||
|
||||
case Map.get(resolved_map, parent_str) do
|
||||
parent_oid when is_list(parent_oid) ->
|
||||
# Decode index - MIB parser uses UTF-8 character for numeric values
|
||||
index =
|
||||
case String.to_charlist(index_binary) do
|
||||
[code_point | _] -> code_point
|
||||
[] -> :binary.decode_unsigned(index_binary)
|
||||
end
|
||||
|
||||
{:ok, parent_oid ++ [index]}
|
||||
|
||||
_ ->
|
||||
{:error, :parent_not_resolved}
|
||||
end
|
||||
end
|
||||
|
||||
defp resolve_oid_def(oid_list, _resolved_map) when is_list(oid_list) do
|
||||
if Enum.all?(oid_list, &is_integer/1) do
|
||||
{:ok, oid_list}
|
||||
else
|
||||
{:error, :not_resolved}
|
||||
end
|
||||
end
|
||||
|
||||
defp resolve_oid_def(_, _), do: {:error, :invalid_format}
|
||||
|
||||
describe "MIB parsing and OID resolution" do
|
||||
test "workaround fixes missing sub_index for ubntAFLTU" do
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
oid_defs = parse_and_extract(mib_path)
|
||||
|
||||
# ubntAFLTU should have index 10 after workaround
|
||||
assert {:ubntMIB, <<10>>} = oid_defs["ubntAFLTU"],
|
||||
"ubntAFLTU should have been fixed to {:ubntMIB, <<10>>} by workaround"
|
||||
end
|
||||
|
||||
test "parses UBNT-MIB and extracts OID definitions" do
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
oid_defs = parse_and_extract(mib_path)
|
||||
|
||||
# Should have extracted OID definitions
|
||||
assert map_size(oid_defs) > 0
|
||||
|
||||
# Check specific definitions
|
||||
assert Map.has_key?(oid_defs, "ubnt")
|
||||
assert Map.has_key?(oid_defs, "ubntMIB")
|
||||
assert Map.has_key?(oid_defs, "ubntAFLTU")
|
||||
|
||||
# ubnt should reference enterprises with index 41112
|
||||
assert {:enterprises, _} = oid_defs["ubnt"]
|
||||
|
||||
# ubntMIB should reference ubnt with an index
|
||||
assert {:ubnt, _} = oid_defs["ubntMIB"]
|
||||
|
||||
# ubntAFLTU should reference ubntMIB with index 10 (fixed by workaround)
|
||||
assert {:ubntMIB, <<10>>} = oid_defs["ubntAFLTU"]
|
||||
end
|
||||
|
||||
test "resolves OID with parent reference" do
|
||||
# Simulate having enterprises already resolved
|
||||
resolved_map = %{"enterprises" => [1, 3, 6, 1, 4, 1]}
|
||||
|
||||
# ubnt = enterprises.41112 (where 41112 is encoded as UTF-8 char "ꂘ")
|
||||
ubnt_def = {:enterprises, "ꂘ"}
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112]} = resolve_oid_def(ubnt_def, resolved_map)
|
||||
end
|
||||
|
||||
test "resolves OID chain iteratively" do
|
||||
# Start with standard OIDs
|
||||
resolved = %{
|
||||
"enterprises" => [1, 3, 6, 1, 4, 1],
|
||||
"mib-2" => [1, 3, 6, 1, 2, 1]
|
||||
}
|
||||
|
||||
# First iteration: resolve ubnt
|
||||
ubnt_def = {:enterprises, "ꂘ"}
|
||||
{:ok, ubnt_oid} = resolve_oid_def(ubnt_def, resolved)
|
||||
resolved = Map.put(resolved, "ubnt", ubnt_oid)
|
||||
|
||||
assert resolved["ubnt"] == [1, 3, 6, 1, 4, 1, 41_112]
|
||||
|
||||
# Second iteration: resolve ubntMIB (ubnt.1)
|
||||
ubnt_mib_def = {:ubnt, <<1>>}
|
||||
{:ok, ubnt_mib_oid} = resolve_oid_def(ubnt_mib_def, resolved)
|
||||
resolved = Map.put(resolved, "ubntMIB", ubnt_mib_oid)
|
||||
|
||||
assert resolved["ubntMIB"] == [1, 3, 6, 1, 4, 1, 41_112, 1]
|
||||
|
||||
# Third iteration: resolve ubntAFLTU (ubntMIB.10)
|
||||
ubnt_afltu_def = {:ubntMIB, <<10>>}
|
||||
{:ok, ubnt_afltu_oid} = resolve_oid_def(ubnt_afltu_def, resolved)
|
||||
resolved = Map.put(resolved, "ubntAFLTU", ubnt_afltu_oid)
|
||||
|
||||
assert resolved["ubntAFLTU"] == [1, 3, 6, 1, 4, 1, 41_112, 1, 10]
|
||||
end
|
||||
end
|
||||
|
||||
describe "MIB GenServer integration" do
|
||||
test "loads UBNT-MIB and resolves OIDs" do
|
||||
# Get initial state
|
||||
state_before = :sys.get_state(MIB)
|
||||
before_count = map_size(state_before.name_to_oid)
|
||||
|
||||
# Load the MIB
|
||||
mib_path = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
assert :ok = GenServer.call(MIB, {:load_mib, mib_path}, 30_000)
|
||||
|
||||
# Get state after loading
|
||||
state_after = :sys.get_state(MIB)
|
||||
after_count = map_size(state_after.name_to_oid)
|
||||
|
||||
# Should have added OIDs
|
||||
assert after_count > before_count, "Expected OIDs to be added (before: #{before_count}, after: #{after_count})"
|
||||
|
||||
# Check specific OIDs
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112]} = SnmpKit.resolve("ubnt")
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1]} = SnmpKit.resolve("ubntMIB")
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10]} = SnmpKit.resolve("ubntAFLTU")
|
||||
end
|
||||
|
||||
test "loads UBNT-AFLTU-MIB and resolves nested OIDs" do
|
||||
# First load base UBNT-MIB
|
||||
base_mib = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-MIB")
|
||||
assert :ok = GenServer.call(MIB, {:load_mib, base_mib}, 30_000)
|
||||
|
||||
# Then load AFLTU MIB
|
||||
afltu_mib = Path.join(:code.priv_dir(:towerops), "mibs/ubnt/UBNT-AFLTU-MIB")
|
||||
assert :ok = GenServer.call(MIB, {:load_mib, afltu_mib}, 30_000)
|
||||
|
||||
# Check nested OIDs
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1]} = SnmpKit.resolve("afLTU")
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1, 3]} = SnmpKit.resolve("afLTUStatus")
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1, 3, 4]} = SnmpKit.resolve("afLTUFirmwareVersion")
|
||||
end
|
||||
end
|
||||
end
|
||||
66
test/towerops/snmp/mib_loader_test.exs
Normal file
66
test/towerops/snmp/mib_loader_test.exs
Normal file
|
|
@ -0,0 +1,66 @@
|
|||
defmodule Towerops.Snmp.MibLoaderTest do
|
||||
use ExUnit.Case, async: false
|
||||
|
||||
alias Towerops.Snmp.MibLoader
|
||||
|
||||
setup do
|
||||
# SnmpKit.SnmpMgr.MIB is already started by the application
|
||||
# Just ensure it's ready
|
||||
:ok
|
||||
end
|
||||
|
||||
describe "load_all_mibs/0" do
|
||||
test "loads UBNT MIBs successfully" do
|
||||
assert :ok = MibLoader.load_all_mibs()
|
||||
|
||||
# Verify that standard MIB names can be resolved
|
||||
assert {:ok, [1, 3, 6, 1, 2, 1, 1, 1, 0]} = SnmpKit.resolve("sysDescr.0")
|
||||
end
|
||||
|
||||
test "resolves UBNT-specific OIDs after loading" do
|
||||
:ok = MibLoader.load_all_mibs()
|
||||
|
||||
# afLTUFirmwareVersion should resolve to 1.3.6.1.4.1.41112.1.10.1.3.4
|
||||
assert {:ok, oid} = SnmpKit.resolve("afLTUFirmwareVersion")
|
||||
assert oid == [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1, 3, 4]
|
||||
end
|
||||
|
||||
test "handles MODULE::object format" do
|
||||
:ok = MibLoader.load_all_mibs()
|
||||
|
||||
# Client should strip module prefix and resolve
|
||||
resolved = Towerops.Snmp.Client.resolve_mib_name("UBNT-AFLTU-MIB::afLTUFirmwareVersion.0")
|
||||
|
||||
# Should resolve to numeric OID
|
||||
assert resolved == "1.3.6.1.4.1.41112.1.10.1.3.4.0"
|
||||
end
|
||||
|
||||
test "resolves parent OIDs correctly" do
|
||||
:ok = MibLoader.load_all_mibs()
|
||||
|
||||
# afLTUStatus is parent of afLTUFirmwareVersion
|
||||
# Should resolve to 1.3.6.1.4.1.41112.1.10.1.3
|
||||
assert {:ok, oid} = SnmpKit.resolve("afLTUStatus")
|
||||
assert oid == [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1, 3]
|
||||
end
|
||||
|
||||
test "resolves hierarchical UBNT OIDs" do
|
||||
:ok = MibLoader.load_all_mibs()
|
||||
|
||||
# Test the full hierarchy:
|
||||
# ubntAFLTU -> afLTU -> afLTUStatus -> afLTUFirmwareVersion
|
||||
|
||||
# ubntAFLTU should resolve to 1.3.6.1.4.1.41112.1.10
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10]} = SnmpKit.resolve("ubntAFLTU")
|
||||
|
||||
# afLTU should resolve to 1.3.6.1.4.1.41112.1.10.1
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1]} = SnmpKit.resolve("afLTU")
|
||||
|
||||
# afLTUStatus should resolve to 1.3.6.1.4.1.41112.1.10.1.3
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1, 3]} = SnmpKit.resolve("afLTUStatus")
|
||||
|
||||
# afLTUFirmwareVersion should resolve to 1.3.6.1.4.1.41112.1.10.1.3.4
|
||||
assert {:ok, [1, 3, 6, 1, 4, 1, 41_112, 1, 10, 1, 3, 4]} = SnmpKit.resolve("afLTUFirmwareVersion")
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Add table
Reference in a new issue