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priority.go
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priority.go
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// Copyright 2015 clair authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package types defines useful types that are used in database models.
package types
// Priority defines a vulnerability priority
type Priority string
const (
// Unknown is either a security problem that has not been
// assigned to a priority yet or a priority that our system
// did not recognize
Unknown Priority = "Unknown"
// Negligible is technically a security problem, but is
// only theoretical in nature, requires a very special
// situation, has almost no install base, or does no real
// damage. These tend not to get backport from upstreams,
// and will likely not be included in security updates unless
// there is an easy fix and some other issue causes an update.
Negligible Priority = "Negligible"
// Low is a security problem, but is hard to
// exploit due to environment, requires a user-assisted
// attack, a small install base, or does very little damage.
// These tend to be included in security updates only when
// higher priority issues require an update, or if many
// low priority issues have built up.
Low Priority = "Low"
// Medium is a real security problem, and is exploitable
// for many people. Includes network daemon denial of service
// attacks, cross-site scripting, and gaining user privileges.
// Updates should be made soon for this priority of issue.
Medium Priority = "Medium"
// High is a real problem, exploitable for many people in a default
// installation. Includes serious remote denial of services,
// local root privilege escalations, or data loss.
High Priority = "High"
// Critical is a world-burning problem, exploitable for nearly all people
// in a default installation of Linux. Includes remote root
// privilege escalations, or massive data loss.
Critical Priority = "Critical"
// Defcon1 is a Critical problem which has been manually highlighted by
// the team. It requires an immediate attention.
Defcon1 Priority = "Defcon1"
)
// Priorities lists all known priorities, ordered from lower to higher
var Priorities = []Priority{Unknown, Negligible, Low, Medium, High, Critical, Defcon1}
// IsValid determines if the priority is a valid one
func (p Priority) IsValid() bool {
for _, pp := range Priorities {
if p == pp {
return true
}
}
return false
}
// Compare compares two priorities
func (p Priority) Compare(p2 Priority) int {
var i1, i2 int
for i1 = 0; i1 < len(Priorities); i1 = i1 + 1 {
if p == Priorities[i1] {
break
}
}
for i2 = 0; i2 < len(Priorities); i2 = i2 + 1 {
if p2 == Priorities[i2] {
break
}
}
return i1 - i2
}