mirror of
https://github.com/ntop/ntopng.git
synced 2026-04-29 07:29:32 +00:00
672 lines
21 KiB
Lua
672 lines
21 KiB
Lua
--
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-- (C) 2017-22 - ntop.org
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--
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dirs = ntop.getDirs()
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package.path = dirs.installdir .. "/scripts/lua/modules/?/init.lua;" .. package.path
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local ntop_info = ntop.getInfo()
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local os_utils = require "os_utils"
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local host_pools_nedge = {}
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host_pools_nedge.DEFAULT_POOL_ID = "0"
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host_pools_nedge.DEFAULT_ROUTING_POLICY_ID = "1"
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host_pools_nedge.FIRST_AVAILABLE_POOL_ID = "2" -- 0 is the default, 1 is the jail
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host_pools_nedge.DEFAULT_POOL_NAME = "Not Assigned"
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host_pools_nedge.MAX_NUM_POOLS = 128 -- Note: keep in sync with C
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--
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-- BEGIN NEDGE specific code
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--
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function host_pools_nedge.usernameToPoolId(username)
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local res = ntop.getPref("ntopng.user."..string.lower(username)..".host_pool_id")
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return ternary(not isEmptyString(res), res, nil)
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end
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function host_pools_nedge.poolIdToUsername(pool_id)
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local ifid = getInterfaceId(ifname) -- in nEdge this always takes one interface
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return host_pools_nedge.getPoolName(pool_id)
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end
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function host_pools_nedge.getUserUrl(pool_id)
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return ntop.getHttpPrefix() .."/lua/pro/nedge/admin/nf_edit_user.lua?username=" ..
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ternary(tostring(pool_id) == host_pools_nedge.DEFAULT_POOL_ID, "", host_pools_nedge.poolIdToUsername(pool_id))
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end
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--
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-- END NEDGE specific code
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--
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host_pools_nedge.LIMITED_NUMBER_POOL_MEMBERS = ntop_info["constants.max_num_pool_members"]
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-- this takes into account the special pools
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host_pools_nedge.LIMITED_NUMBER_TOTAL_HOST_POOLS = ntop_info["constants.max_num_host_pools"]
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-- this does not take into account the special pools
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host_pools_nedge.LIMITED_NUMBER_USER_HOST_POOLS = host_pools_nedge.LIMITED_NUMBER_TOTAL_HOST_POOLS - 1
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local function get_pool_members_key(pool_id)
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return "ntopng.prefs.host_pools.members." .. pool_id
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end
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local function get_pool_ids_key()
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return "ntopng.prefs.host_pools.pool_ids"
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end
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local function get_pool_details_key(pool_id)
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return "ntopng.prefs.host_pools.details." .. pool_id
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end
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local function get_pools_serialized_key(ifid)
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return "ntopng.serialized_host_pools.ifid_" .. ifid
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end
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-- It is safe to call this multiple times
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local function initInterfacePools()
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host_pools_nedge.createPool(host_pools_nedge.DEFAULT_POOL_ID, host_pools_nedge.DEFAULT_POOL_NAME)
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end
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function host_pools_nedge.getPoolDetail(pool_id, detail)
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local details_key = get_pool_details_key(pool_id)
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return ntop.getHashCache(details_key, detail)
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end
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function host_pools_nedge.setPoolDetail(pool_id, detail, value)
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local details_key = get_pool_details_key(pool_id)
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return ntop.setHashCache(details_key, detail, tostring(value))
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end
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local function traceHostPoolEvent(severity, event)
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if ntop.getPref("ntopng.prefs.enable_host_pools_log") ~= "1" then
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return
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end
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local f_name = debug.getinfo(2, "n").name
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if f_name ~= nil then
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f_name = string.format("[%s] ", f_name)
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end
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traceError(severity, TRACE_CONSOLE, string.format("%s%s", f_name or '', event))
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end
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local function addMemberToRedisPool(pool_id, member_key)
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if pool_id == host_pools_nedge.DEFAULT_POOL_ID then
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-- avoid adding default pool members explicitly
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traceHostPoolEvent(TRACE_NORMAL,
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string.format("Setting DEFAULT_POOL_ID (aka 'Not Assigned'). [pool_id: %d][member: %s]",
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host_pools_nedge.DEFAULT_POOL_ID, member_key))
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return true
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end
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local members_key = get_pool_members_key(pool_id)
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local n = table.len(ntop.getMembersCache(members_key) or {})
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if n >= host_pools_nedge.LIMITED_NUMBER_POOL_MEMBERS then
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traceHostPoolEvent(TRACE_ERROR, string.format("Unable to set host pool, maximum number of pool members hit. [max num pool members: %d][member: %s] [members_key: %s]", host_pools_nedge.LIMITED_NUMBER_POOL_MEMBERS, member_key, members_key))
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return false
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end
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ntop.setMembersCache(members_key, member_key)
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traceHostPoolEvent(TRACE_NORMAL, string.format("Member added to pool. [member: %s] [members_key: %s]", member_key, members_key))
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return true
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end
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--------------------------------------------------------------------------------
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function host_pools_nedge.getPoolMembersRaw(pool_id)
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local members_key = get_pool_members_key(pool_id)
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return ntop.getMembersCache(members_key) or {}
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end
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-- Export host pools
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function host_pools_nedge.export()
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local pools = {}
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for _,pool in pairs(host_pools_nedge.getPoolsList()) do
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pool.members = host_pools_nedge.getPoolMembersRaw(pool.id)
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pools[pool.id] = pool
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end
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return pools
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end
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-- Import host pools, in case of conflict (same name) the pool is replaced
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function host_pools_nedge.import(pools)
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local existing_pools = host_pools_nedge.getPoolsList()
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local retval = true
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-- Import pools
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for _,pool in pairs(pools) do
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for k,existing_pool in pairs(existing_pools) do
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if pool.name == existing_pool.name then
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-- Same name, delete the old pool and reuse the id
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pool.id = existing_pool.id
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host_pools_nedge.emptyPool(existing_pool.id)
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host_pools_nedge.deletePool(existing_pool.id)
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end
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end
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-- Add pool
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host_pools_nedge.createPool(pool.id, pool.name, pool.children_safe,
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pool.enforce_quotas_per_pool_member, pool. enforce_shapers_per_pool_member,
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true)
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-- Add members
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for _,member in ipairs(pool.members) do
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local success = addMemberToRedisPool(pool.id, member)
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if not success then
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retval = false
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end
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end
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end
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return retval
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end
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--------------------------------------------------------------------------------
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function host_pools_nedge.createPool(pool_id, pool_name, children_safe,
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enforce_quotas_per_pool_member, enforce_shapers_per_pool_member, ignore_exist)
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local details_key = get_pool_details_key(pool_id)
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local ids_key = get_pool_ids_key()
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local members = ntop.getMembersCache(ids_key) or {}
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local n = table.len(members)
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if n >= host_pools_nedge.LIMITED_NUMBER_TOTAL_HOST_POOLS then
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return false
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end
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if not ignore_exist then
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for _, m in pairs(members) do
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if m == pool_id then
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return true
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end
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end
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end
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ntop.setMembersCache(ids_key, pool_id)
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ntop.setHashCache(details_key, "name", pool_name)
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ntop.setHashCache(details_key, "children_safe", tostring(children_safe or false))
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ntop.setHashCache(details_key, "enforce_quotas_per_pool_member", tostring(enforce_quotas_per_pool_member or false))
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ntop.setHashCache(details_key, "enforce_shapers_per_pool_member", tostring(enforce_shapers_per_pool_member or false))
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ntop.setHashCache(details_key, "forge_global_dns", "true")
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return true
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end
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function host_pools_nedge.deletePool(pool_id)
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local ts_utils = require "ts_utils"
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local ids_key = get_pool_ids_key()
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local details_key = get_pool_details_key(pool_id)
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local members_key = get_pool_members_key(pool_id)
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host_pools_nedge.emptyPool(pool_id)
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ntop.delMembersCache(ids_key, pool_id)
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ntop.delCache(details_key)
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ntop.delCache(members_key)
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-- Delete serialized values and timeseries across all interfaces
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for ifid, ifname in pairs(interface.getIfNames()) do
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local serialized_key = get_pools_serialized_key(ifid)
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ntop.delHashCache(serialized_key, pool_id)
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ts_utils.delete("host_pool", {ifid = tonumber(ifid), pool = pool_id})
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end
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end
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function getMembershipInfo(member_and_vlan)
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-- Check if the member is already in another pool
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local hostinfo = hostkey2hostinfo(member_and_vlan)
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local addr, mask = splitNetworkPrefix(hostinfo["host"])
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local vlan = hostinfo["vlan"]
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local is_mac = isMacAddress(addr)
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if not is_mac then
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addr = ntop.networkPrefix(addr, mask)
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end
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local find_info = interface.findMemberPool(addr, vlan, is_mac)
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-- This is the normalized key, which should always be used to refer to the member
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local key
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if not is_mac then
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key = host2member(addr, vlan, mask)
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else
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key = addr
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end
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local info = {key=key}
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local exists = false
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if find_info ~= nil then
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-- The host has been found
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if is_mac or ((not is_mac)
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and (find_info.matched_prefix == addr)
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and (find_info.matched_bitmask == mask)) then
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info["existing_member_pool"] = find_info.pool_id
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exists = true
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end
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end
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return exists, info
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end
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--
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-- Note:
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--
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-- When strict_host_mode is not set, hosts which have a MAC address will have the
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-- MAC address changed instead of the IP address when their MAC address is already bound to
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-- a pool.
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--
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function host_pools_nedge.changeMemberPool(member_and_vlan, new_pool, info --[[optional]], strict_host_mode --[[optional]])
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traceHostPoolEvent(TRACE_NORMAL,
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string.format("Pool change requested. [member: %s][new_pool: %s][strict_host_mode: %s]",
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member_and_vlan, new_pool, tostring(strict_host_mode)))
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if not strict_host_mode then
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local hostkey, is_network = host_pools_nedge.getMemberKey(member_and_vlan)
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if (not is_network) and (not isMacAddress(member_and_vlan)) then
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-- this is a single host, try to get the MAC address
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if info == nil then
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local hostinfo = hostkey2hostinfo(hostkey)
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info = interface.getHostInfo(hostinfo["host"], hostinfo["vlan"])
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end
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if not isEmptyString(info["mac"]) and (info["mac"] ~= "00:00:00:00:00:00") then
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local mac_has_pool, mac_pool_info = getMembershipInfo(info["mac"])
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-- Two cases:
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-- 1. if we are moving to a well defined pool, we must set the mac pool
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-- 2. if we are moving to the default pool, we must set the mac pool only
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-- if the mac already has a pool, otherwise we set the ip pool
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if (new_pool ~= host_pools_nedge.DEFAULT_POOL_ID) or mac_has_pool then
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-- we must change the MAC address in order to change the host pool
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member_and_vlan = info["mac"]
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end
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end
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end
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end
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local member_exists, info = getMembershipInfo(member_and_vlan)
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local prev_pool
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if member_exists then
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-- use the normalized key
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member_and_vlan = info.key
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prev_pool = info.existing_member_pool
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else
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prev_pool = host_pools_nedge.DEFAULT_POOL_ID
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end
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if prev_pool == new_pool then
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traceHostPoolEvent(TRACE_ERROR,
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string.format("Pool did't change. Exiting. [member: %s][prev_pool: %s][new_pool: %s]",
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member_and_vlan, prev_pool, new_pool))
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return false
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end
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traceHostPoolEvent(TRACE_NORMAL,
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string.format("Pool change prepared. [member: %s][info.key: %s][prev_pool: %s][new_pool: %s]",
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member_and_vlan, tostring(info.key), prev_pool, new_pool))
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host_pools_nedge.deletePoolMember(prev_pool, info.key)
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addMemberToRedisPool(new_pool, info.key)
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return true
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end
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function host_pools_nedge.addPoolMember(pool_id, member_and_vlan)
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traceHostPoolEvent(TRACE_NORMAL,
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string.format("Pool member addition requested. [member: %s][pool_id: %s]",
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member_and_vlan, pool_id))
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local member_exists, info = getMembershipInfo(member_and_vlan)
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if member_exists then
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traceHostPoolEvent(TRACE_NORMAL, string.format("Member already in pool. [pool_id: %d] [member: %s]", pool_id, member_and_vlan))
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return false, info
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else
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local rv = addMemberToRedisPool(pool_id, info.key)
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return rv, info
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end
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end
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function host_pools_nedge.deletePoolMember(pool_id, member_and_vlan)
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traceHostPoolEvent(TRACE_NORMAL,
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string.format("Pool member deletion requested. [member: %s][pool_id: %s]",
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member_and_vlan, pool_id))
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local members_key = get_pool_members_key(pool_id)
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-- Possible delete non-volatile member
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ntop.delMembersCache(members_key, member_and_vlan)
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end
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function host_pools_nedge.getPoolsList(without_info)
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local ids_key = get_pool_ids_key()
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local ids = ntop.getMembersCache(ids_key)
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if not ids then ids = {} end
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for i, id in pairs(ids) do
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ids[i] = tonumber(id)
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end
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local pools = {}
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initInterfacePools()
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for _, pool_id in pairsByValues(ids, asc) do
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pool_id = tostring(pool_id)
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local pool
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if without_info then
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pool = {id=pool_id}
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else
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pool = {
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id = pool_id,
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name = host_pools_nedge.getPoolName(pool_id),
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children_safe = host_pools_nedge.getChildrenSafe(pool_id),
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enforce_quotas_per_pool_member = host_pools_nedge.getEnforceQuotasPerPoolMember(pool_id),
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enforce_shapers_per_pool_member = host_pools_nedge.getEnforceShapersPerPoolMember(pool_id),
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}
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end
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pools[#pools + 1] = pool
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end
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return pools
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end
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-- Delete a member (IP or Mac) from all pools if any
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function host_pools_nedge.deletePoolMemberFromAllPools(member)
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for _, pool in pairs(host_pools_nedge.getPoolsList()) do
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host_pools_nedge.deletePoolMember(pool.id, member)
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end
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end
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function host_pools_nedge.getPoolMembers(pool_id)
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local members_key = get_pool_members_key(pool_id)
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local members = {}
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local all_members = ntop.getMembersCache(members_key) or {}
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for _,v in pairsByValues(all_members, asc) do
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local hostinfo = hostkey2hostinfo(v)
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members[#members + 1] = {address=hostinfo["host"], vlan=hostinfo["vlan"], key=v}
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end
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return members
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end
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function host_pools_nedge.getMemberKey(member)
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-- handle vlan
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local is_network
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local host_key
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local address = hostkey2hostinfo(member)["host"]
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if isMacAddress(address) then
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host_key = address
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is_network = false
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else
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local network, prefix = splitNetworkPrefix(address)
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if(((isIPv4(network)) and (prefix ~= 32)) or
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((isIPv6(network)) and (prefix ~= 128))) then
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-- this is a network
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host_key = address
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is_network = true
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else
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-- this is an host
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host_key = network
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is_network = false
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end
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end
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return host_key, is_network
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end
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function host_pools_nedge.getPoolName(pool_id)
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return host_pools_nedge.getPoolDetail(pool_id, "name")
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end
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function host_pools_nedge.getChildrenSafe(pool_id)
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return toboolean(host_pools_nedge.getPoolDetail(pool_id, "children_safe"))
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end
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function host_pools_nedge.setChildrenSafe(pool_id, value)
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host_pools_nedge.setPoolDetail(pool_id, "children_safe", ternary(value, "true", "false"))
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end
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function host_pools_nedge.routingPolicyNameToId(policy_name)
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package.path = dirs.installdir .. "/pro/scripts/lua/nedge/modules/system_config/?.lua;" .. package.path
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local nf_config = require("nf_config"):create()
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local routing_policies = nf_config:getRoutingPolicies()
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-- Return default policy on failure
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local policy_id = host_pools_nedge.DEFAULT_ROUTING_POLICY_ID
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local routing_policy = routing_policies[policy_name]
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if routing_policy then
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policy_id = routing_policy.id
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end
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return policy_id
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end
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function host_pools_nedge.getRoutingPolicyId(pool_id)
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local routing_policy_id = host_pools_nedge.getPoolDetail(pool_id, "routing_policy_id")
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if isEmptyString(routing_policy_id) then routing_policy_id = host_pools_nedge.DEFAULT_ROUTING_POLICY_ID end
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return routing_policy_id
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end
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function host_pools_nedge.setRoutingPolicyId(pool_id, routing_policy_id)
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return host_pools_nedge.setPoolDetail(pool_id, "routing_policy_id", routing_policy_id)
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end
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function host_pools_nedge.getEnforceQuotasPerPoolMember(pool_id)
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return toboolean(host_pools_nedge.getPoolDetail(pool_id, "enforce_quotas_per_pool_member"))
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end
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function host_pools_nedge.getEnforceShapersPerPoolMember(pool_id)
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return toboolean(host_pools_nedge.getPoolDetail(pool_id, "enforce_shapers_per_pool_member"))
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|
end
|
|
|
|
function host_pools_nedge.emptyPool(pool_id)
|
|
local members_key = get_pool_members_key(pool_id)
|
|
|
|
-- Remove non-volatile members
|
|
ntop.delCache(members_key)
|
|
end
|
|
|
|
function host_pools_nedge.emptyPools()
|
|
for _, ifname in pairs(interface.getIfNames()) do
|
|
local ifid = getInterfaceId(ifname)
|
|
local ifstats = interface.getStats()
|
|
|
|
local pools_list = host_pools_nedge.getPoolsList()
|
|
for _, pool in pairs(pools_list) do
|
|
host_pools_nedge.emptyPool(pool["id"])
|
|
end
|
|
end
|
|
end
|
|
|
|
function host_pools_nedge.initPools()
|
|
for _, ifname in pairs(interface.getIfNames()) do
|
|
local ifid = getInterfaceId(ifname)
|
|
local ifstats = interface.getStats()
|
|
|
|
-- Note: possible shapers are initialized in shaper_utils::initShapers
|
|
initInterfacePools()
|
|
end
|
|
end
|
|
|
|
function host_pools_nedge.getMacPool(mac_address)
|
|
local exists, info = getMembershipInfo(mac_address)
|
|
if exists then
|
|
return tostring(info.existing_member_pool)
|
|
else
|
|
return host_pools_nedge.DEFAULT_POOL_ID
|
|
end
|
|
end
|
|
|
|
function host_pools_nedge.getUndeletablePools()
|
|
local pools = {}
|
|
|
|
for user_key,_ in pairs(ntop.getKeysCache("ntopng.user.*.host_pool_id") or {}) do
|
|
local pool_id = ntop.getCache(user_key)
|
|
|
|
if tonumber(pool_id) ~= nil then
|
|
local username = string.split(user_key, "%.")[3]
|
|
local allowed_ifname = ntop.getCache("ntopng.user."..username..".allowed_ifname")
|
|
|
|
-- verify if the Captive Portal User is actually active for the interface
|
|
if getInterfaceName(ifid) == allowed_ifname then
|
|
pools[pool_id] = true
|
|
end
|
|
end
|
|
end
|
|
|
|
return pools
|
|
end
|
|
|
|
function host_pools_nedge.printQuotas(pool_id, host, page_params)
|
|
--[[
|
|
local pools_stats = interface.getHostPoolsStats()
|
|
local pool_stats = pools_stats and pools_stats[tonumber(pool_id)]
|
|
|
|
local ndpi_stats = pool_stats.ndpi
|
|
local category_stats = pool_stats.ndpi_categories
|
|
--]]
|
|
|
|
-- ifId is a global variable here
|
|
local quota_and_protos = shaper_utils.getPoolProtoShapers(ifId, pool_id)
|
|
local cross_traffic_quota, cross_time_quota = shaper_utils.getCrossApplicationQuotas(ifId, pool_id)
|
|
|
|
-- Empty check
|
|
local empty = (cross_traffic_quota == shaper_utils.NO_QUOTA) and (cross_time_quota == shaper_utils.NO_QUOTA)
|
|
|
|
if empty then
|
|
for _, proto in pairs(quota_and_protos) do
|
|
if ((tonumber(proto.traffic_quota) > 0) or (tonumber(proto.time_quota) > 0)) then
|
|
-- at least a quota is set
|
|
empty = false
|
|
break
|
|
end
|
|
end
|
|
end
|
|
|
|
if empty then
|
|
local url = "/lua/pro/nedge/admin/nf_edit_user.lua?page=protocols&username=" .. host_pools_nedge.poolIdToUsername(pool_id)
|
|
|
|
print("<div class=\"alert alert alert-danger\"><i class='fas fa-exclamation-triangle fa-lg fa-ntopng-warning'></i> "..i18n("shaping.no_quota_data")..
|
|
". " .. i18n("host_pools.create_new_quotas_here", {url=ntop.getHttpPrefix()..url}) .. "</div>")
|
|
else
|
|
print[[
|
|
<table class="table table-bordered table-striped">
|
|
<thead>
|
|
<tr>
|
|
<th>]] print(i18n("application")) print[[</th>
|
|
<th class="text-center">]] print(i18n("shaping.daily_traffic")) print[[</th>
|
|
<th class="text-center">]] print(i18n("shaping.daily_time")) print[[</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody id="pool_quotas_ndpi_tbody">
|
|
</tbody>
|
|
</table>
|
|
|
|
<script>
|
|
function update_ndpi_table() {
|
|
$.ajax({
|
|
type: 'GET',
|
|
url: ']]
|
|
print(getPageUrl(ntop.getHttpPrefix().."/lua/pro/pool_details_ndpi.lua").."', data: ")
|
|
print(tableToJsObject(page_params))
|
|
print[[,
|
|
success: function(content) {
|
|
if(content)
|
|
$('#pool_quotas_ndpi_tbody').html(content);
|
|
else
|
|
$('#pool_quotas_ndpi_tbody').html('<tr><td colspan="3"><i>]] print(i18n("shaping.no_quota_traffic")) print[[</i></td></tr>');
|
|
}
|
|
});
|
|
}
|
|
|
|
setInterval(update_ndpi_table, 5000);
|
|
update_ndpi_table();
|
|
</script>]]
|
|
end
|
|
|
|
end
|
|
|
|
function host_pools_nedge.getFirstAvailablePoolId()
|
|
local ids_key = get_pool_ids_key()
|
|
local ids = ntop.getMembersCache(ids_key) or {}
|
|
|
|
for i, id in pairs(ids) do
|
|
ids[i] = tonumber(id)
|
|
end
|
|
|
|
local host_pool_id = tonumber(host_pools_nedge.FIRST_AVAILABLE_POOL_ID)
|
|
|
|
for _, pool_id in pairsByValues(ids, asc) do
|
|
if pool_id > host_pool_id then
|
|
break
|
|
end
|
|
|
|
host_pool_id = math.max(pool_id + 1, host_pool_id)
|
|
end
|
|
|
|
return tostring(host_pool_id)
|
|
end
|
|
|
|
function host_pools_nedge.resetPoolsQuotas(pool_filter)
|
|
local serialized_key = get_pools_serialized_key(tostring(interface.getFirstInterfaceId()))
|
|
local keys_to_del
|
|
|
|
if pool_filter ~= nil then
|
|
keys_to_del = {[pool_filter]=1, }
|
|
else
|
|
keys_to_del = ntop.getHashKeysCache(serialized_key) or {}
|
|
end
|
|
|
|
-- Delete the redis serialization
|
|
for key in pairs(keys_to_del) do
|
|
ntop.delHashCache(serialized_key, tostring(key))
|
|
end
|
|
|
|
-- Delete the in-memory stats
|
|
interface.resetPoolsQuotas(pool_filter)
|
|
end
|
|
|
|
-- @brief Performs a daily check and possibly resets host quotas.
|
|
-- NOTE: This function must be called one time per day.
|
|
function host_pools_nedge.dailyCheckResetPoolsQuotas()
|
|
package.path = dirs.installdir .. "/pro/scripts/lua/nedge/modules/system_config/?.lua;" .. package.path
|
|
local nf_config = require("nf_config"):create()
|
|
local shapers_config = nf_config:getShapersConfig()
|
|
local quotas_control = shapers_config.quotas_control
|
|
local do_reset = true
|
|
|
|
if quotas_control.reset == "monthly" then
|
|
local day_of_month = os.date("*t").day
|
|
|
|
if day_of_month ~= 1 --[[ First day of the month --]] then
|
|
do_reset = false
|
|
end
|
|
elseif quotas_control.reset == "weekly" then
|
|
local day_of_week = os.date("*t").wday
|
|
|
|
if day_of_week ~= 2 --[[ Monday --]] then
|
|
do_reset = false
|
|
end
|
|
end
|
|
|
|
if do_reset then
|
|
host_pools_nedge.resetPoolsQuotas()
|
|
end
|
|
end
|
|
|
|
host_pools_nedge.traceHostPoolEvent = traceHostPoolEvent
|
|
|
|
return host_pools_nedge
|