| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | //go:build linux |
| 4 | |
| 5 | package fail2ban |
| 6 | |
| 7 | import ( |
| 8 | "fmt" |
| 9 | "strings" |
| 10 | |
| 11 | "github.com/netdata/netdata/go/plugins/plugin/framework/collectorapi" |
| 12 | ) |
| 13 | |
| 14 | const ( |
| 15 | prioJailBannedIPs = collectorapi.Priority + iota |
| 16 | prioJailActiveFailures |
| 17 | ) |
| 18 | |
| 19 | var jailChartsTmpl = collectorapi.Charts{ |
| 20 | jailCurrentBannedIPs.Copy(), |
| 21 | jailActiveFailures.Copy(), |
| 22 | } |
| 23 | |
| 24 | var ( |
| 25 | jailCurrentBannedIPs = collectorapi.Chart{ |
| 26 | ID: "jail_%s_banned_ips", |
| 27 | Title: "Fail2Ban Jail banned IPs", |
| 28 | Units: "addresses", |
| 29 | Fam: "bans", |
| 30 | Ctx: "fail2ban.jail_banned_ips", |
| 31 | Type: collectorapi.Line, |
| 32 | Priority: prioJailBannedIPs, |
| 33 | Dims: collectorapi.Dims{ |
| 34 | {ID: "jail_%s_currently_banned", Name: "banned"}, |
| 35 | }, |
| 36 | } |
| 37 | jailActiveFailures = collectorapi.Chart{ |
| 38 | ID: "jail_%s_active_failures", |
| 39 | Title: "Fail2Ban Jail active failures", |
| 40 | Units: "failures", |
| 41 | Fam: "failures", |
| 42 | Ctx: "fail2ban.jail_active_failures", |
| 43 | Type: collectorapi.Line, |
| 44 | Priority: prioJailActiveFailures, |
| 45 | Dims: collectorapi.Dims{ |
| 46 | {ID: "jail_%s_currently_failed", Name: "active_failures"}, |
| 47 | }, |
| 48 | } |
| 49 | ) |
| 50 | |
| 51 | func (c *Collector) addJailCharts(jail string) { |
| 52 | charts := jailChartsTmpl.Copy() |
| 53 | |
| 54 | for _, chart := range *charts { |
| 55 | chart.ID = fmt.Sprintf(chart.ID, jail) |
| 56 | chart.Labels = []collectorapi.Label{ |
| 57 | {Key: "jail", Value: jail}, |
| 58 | } |
| 59 | for _, dim := range chart.Dims { |
| 60 | dim.ID = fmt.Sprintf(dim.ID, jail) |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | if err := c.Charts().Add(*charts...); err != nil { |
| 65 | c.Warning(err) |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | func (c *Collector) removeJailCharts(jail string) { |
| 70 | px := fmt.Sprintf("jail_%s_", jail) |
| 71 | for _, chart := range *c.Charts() { |
| 72 | if strings.HasPrefix(chart.ID, px) { |
| 73 | chart.MarkRemove() |
| 74 | chart.MarkNotCreated() |
| 75 | } |
| 76 | } |
| 77 | } |