diff options
Diffstat (limited to 'vendor')
| -rw-r--r-- | vendor/github.com/coreos/go-iptables/LICENSE | 191 | ||||
| -rw-r--r-- | vendor/github.com/coreos/go-iptables/NOTICE | 5 | ||||
| -rw-r--r-- | vendor/github.com/coreos/go-iptables/iptables/iptables.go | 532 | ||||
| -rw-r--r-- | vendor/github.com/coreos/go-iptables/iptables/lock.go | 84 | ||||
| -rw-r--r-- | vendor/modules.txt | 2 |
5 files changed, 0 insertions, 814 deletions
diff --git a/vendor/github.com/coreos/go-iptables/LICENSE b/vendor/github.com/coreos/go-iptables/LICENSE deleted file mode 100644 index 37ec93a14..000000000 --- a/vendor/github.com/coreos/go-iptables/LICENSE +++ /dev/null @@ -1,191 +0,0 @@ -Apache License -Version 2.0, January 2004 -http://www.apache.org/licenses/ - -TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - -1. Definitions. - -"License" shall mean the terms and conditions for use, reproduction, and -distribution as defined by Sections 1 through 9 of this document. - -"Licensor" shall mean the copyright owner or entity authorized by the copyright -owner that is granting the License. - -"Legal Entity" shall mean the union of the acting entity and all other entities -that control, are controlled by, or are under common control with that entity. -For the purposes of this definition, "control" means (i) the power, direct or -indirect, to cause the direction or management of such entity, whether by -contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the -outstanding shares, or (iii) beneficial ownership of such entity. - -"You" (or "Your") shall mean an individual or Legal Entity exercising -permissions granted by this License. - -"Source" form shall mean the preferred form for making modifications, including -but not limited to software source code, documentation source, and configuration -files. - -"Object" form shall mean any form resulting from mechanical transformation or -translation of a Source form, including but not limited to compiled object code, -generated documentation, and conversions to other media types. - -"Work" shall mean the work of authorship, whether in Source or Object form, made -available under the License, as indicated by a copyright notice that is included -in or attached to the work (an example is provided in the Appendix below). - -"Derivative Works" shall mean any work, whether in Source or Object form, that -is based on (or derived from) the Work and for which the editorial revisions, -annotations, elaborations, or other modifications represent, as a whole, an -original work of authorship. For the purposes of this License, Derivative Works -shall not include works that remain separable from, or merely link (or bind by -name) to the interfaces of, the Work and Derivative Works thereof. - -"Contribution" shall mean any work of authorship, including the original version -of the Work and any modifications or additions to that Work or Derivative Works -thereof, that is intentionally submitted to Licensor for inclusion in the Work -by the copyright owner or by an individual or Legal Entity authorized to submit -on behalf of the copyright owner. For the purposes of this definition, -"submitted" means any form of electronic, verbal, or written communication sent -to the Licensor or its representatives, including but not limited to -communication on electronic mailing lists, source code control systems, and -issue tracking systems that are managed by, or on behalf of, the Licensor for -the purpose of discussing and improving the Work, but excluding communication -that is conspicuously marked or otherwise designated in writing by the copyright -owner as "Not a Contribution." - -"Contributor" shall mean Licensor and any individual or Legal Entity on behalf -of whom a Contribution has been received by Licensor and subsequently -incorporated within the Work. - -2. Grant of Copyright License. - -Subject to the terms and conditions of this License, each Contributor hereby -grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, -irrevocable copyright license to reproduce, prepare Derivative Works of, -publicly display, publicly perform, sublicense, and distribute the Work and such -Derivative Works in Source or Object form. - -3. Grant of Patent License. - -Subject to the terms and conditions of this License, each Contributor hereby -grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, -irrevocable (except as stated in this section) patent license to make, have -made, use, offer to sell, sell, import, and otherwise transfer the Work, where -such license applies only to those patent claims licensable by such Contributor -that are necessarily infringed by their Contribution(s) alone or by combination -of their Contribution(s) with the Work to which such Contribution(s) was -submitted. If You institute patent litigation against any entity (including a -cross-claim or counterclaim in a lawsuit) alleging that the Work or a -Contribution incorporated within the Work constitutes direct or contributory -patent infringement, then any patent licenses granted to You under this License -for that Work shall terminate as of the date such litigation is filed. - -4. Redistribution. - -You may reproduce and distribute copies of the Work or Derivative Works thereof -in any medium, with or without modifications, and in Source or Object form, -provided that You meet the following conditions: - -You must give any other recipients of the Work or Derivative Works a copy of -this License; and -You must cause any modified files to carry prominent notices stating that You -changed the files; and -You must retain, in the Source form of any Derivative Works that You distribute, -all copyright, patent, trademark, and attribution notices from the Source form -of the Work, excluding those notices that do not pertain to any part of the -Derivative Works; and -If the Work includes a "NOTICE" text file as part of its distribution, then any -Derivative Works that You distribute must include a readable copy of the -attribution notices contained within such NOTICE file, excluding those notices -that do not pertain to any part of the Derivative Works, in at least one of the -following places: within a NOTICE text file distributed as part of the -Derivative Works; within the Source form or documentation, if provided along -with the Derivative Works; or, within a display generated by the Derivative -Works, if and wherever such third-party notices normally appear. The contents of -the NOTICE file are for informational purposes only and do not modify the -License. You may add Your own attribution notices within Derivative Works that -You distribute, alongside or as an addendum to the NOTICE text from the Work, -provided that such additional attribution notices cannot be construed as -modifying the License. -You may add Your own copyright statement to Your modifications and may provide -additional or different license terms and conditions for use, reproduction, or -distribution of Your modifications, or for any such Derivative Works as a whole, -provided Your use, reproduction, and distribution of the Work otherwise complies -with the conditions stated in this License. - -5. Submission of Contributions. - -Unless You explicitly state otherwise, any Contribution intentionally submitted -for inclusion in the Work by You to the Licensor shall be under the terms and -conditions of this License, without any additional terms or conditions. -Notwithstanding the above, nothing herein shall supersede or modify the terms of -any separate license agreement you may have executed with Licensor regarding -such Contributions. - -6. Trademarks. - -This License does not grant permission to use the trade names, trademarks, -service marks, or product names of the Licensor, except as required for -reasonable and customary use in describing the origin of the Work and -reproducing the content of the NOTICE file. - -7. Disclaimer of Warranty. - -Unless required by applicable law or agreed to in writing, Licensor provides the -Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, -including, without limitation, any warranties or conditions of TITLE, -NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are -solely responsible for determining the appropriateness of using or -redistributing the Work and assume any risks associated with Your exercise of -permissions under this License. - -8. Limitation of Liability. - -In no event and under no legal theory, whether in tort (including negligence), -contract, or otherwise, unless required by applicable law (such as deliberate -and grossly negligent acts) or agreed to in writing, shall any Contributor be -liable to You for damages, including any direct, indirect, special, incidental, -or consequential damages of any character arising as a result of this License or -out of the use or inability to use the Work (including but not limited to -damages for loss of goodwill, work stoppage, computer failure or malfunction, or -any and all other commercial damages or losses), even if such Contributor has -been advised of the possibility of such damages. - -9. Accepting Warranty or Additional Liability. - -While redistributing the Work or Derivative Works thereof, You may choose to -offer, and charge a fee for, acceptance of support, warranty, indemnity, or -other liability obligations and/or rights consistent with this License. However, -in accepting such obligations, You may act only on Your own behalf and on Your -sole responsibility, not on behalf of any other Contributor, and only if You -agree to indemnify, defend, and hold each Contributor harmless for any liability -incurred by, or claims asserted against, such Contributor by reason of your -accepting any such warranty or additional liability. - -END OF TERMS AND CONDITIONS - -APPENDIX: How to apply the Apache License to your work - -To apply the Apache License to your work, attach the following boilerplate -notice, with the fields enclosed by brackets "[]" replaced with your own -identifying information. (Don't include the brackets!) The text should be -enclosed in the appropriate comment syntax for the file format. We also -recommend that a file or class name and description of purpose be included on -the same "printed page" as the copyright notice for easier identification within -third-party archives. - - Copyright [yyyy] [name of copyright owner] - - 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. diff --git a/vendor/github.com/coreos/go-iptables/NOTICE b/vendor/github.com/coreos/go-iptables/NOTICE deleted file mode 100644 index 23a0ada2f..000000000 --- a/vendor/github.com/coreos/go-iptables/NOTICE +++ /dev/null @@ -1,5 +0,0 @@ -CoreOS Project -Copyright 2018 CoreOS, Inc - -This product includes software developed at CoreOS, Inc. -(http://www.coreos.com/). diff --git a/vendor/github.com/coreos/go-iptables/iptables/iptables.go b/vendor/github.com/coreos/go-iptables/iptables/iptables.go deleted file mode 100644 index 9601bc78a..000000000 --- a/vendor/github.com/coreos/go-iptables/iptables/iptables.go +++ /dev/null @@ -1,532 +0,0 @@ -// Copyright 2015 CoreOS, Inc. -// -// 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 iptables - -import ( - "bytes" - "fmt" - "io" - "net" - "os/exec" - "regexp" - "strconv" - "strings" - "syscall" -) - -// Adds the output of stderr to exec.ExitError -type Error struct { - exec.ExitError - cmd exec.Cmd - msg string - proto Protocol - exitStatus *int //for overriding -} - -func (e *Error) ExitStatus() int { - if e.exitStatus != nil { - return *e.exitStatus - } - return e.Sys().(syscall.WaitStatus).ExitStatus() -} - -func (e *Error) Error() string { - return fmt.Sprintf("running %v: exit status %v: %v", e.cmd.Args, e.ExitStatus(), e.msg) -} - -// IsNotExist returns true if the error is due to the chain or rule not existing -func (e *Error) IsNotExist() bool { - return e.ExitStatus() == 1 && - (e.msg == fmt.Sprintf("%s: Bad rule (does a matching rule exist in that chain?).\n", getIptablesCommand(e.proto)) || - e.msg == fmt.Sprintf("%s: No chain/target/match by that name.\n", getIptablesCommand(e.proto))) -} - -// Protocol to differentiate between IPv4 and IPv6 -type Protocol byte - -const ( - ProtocolIPv4 Protocol = iota - ProtocolIPv6 -) - -type IPTables struct { - path string - proto Protocol - hasCheck bool - hasWait bool - hasRandomFully bool - v1 int - v2 int - v3 int - mode string // the underlying iptables operating mode, e.g. nf_tables -} - -// New creates a new IPTables. -// For backwards compatibility, this always uses IPv4, i.e. "iptables". -func New() (*IPTables, error) { - return NewWithProtocol(ProtocolIPv4) -} - -// New creates a new IPTables for the given proto. -// The proto will determine which command is used, either "iptables" or "ip6tables". -func NewWithProtocol(proto Protocol) (*IPTables, error) { - path, err := exec.LookPath(getIptablesCommand(proto)) - if err != nil { - return nil, err - } - vstring, err := getIptablesVersionString(path) - v1, v2, v3, mode, err := extractIptablesVersion(vstring) - - checkPresent, waitPresent, randomFullyPresent := getIptablesCommandSupport(v1, v2, v3) - - ipt := IPTables{ - path: path, - proto: proto, - hasCheck: checkPresent, - hasWait: waitPresent, - hasRandomFully: randomFullyPresent, - v1: v1, - v2: v2, - v3: v3, - mode: mode, - } - return &ipt, nil -} - -// Proto returns the protocol used by this IPTables. -func (ipt *IPTables) Proto() Protocol { - return ipt.proto -} - -// Exists checks if given rulespec in specified table/chain exists -func (ipt *IPTables) Exists(table, chain string, rulespec ...string) (bool, error) { - if !ipt.hasCheck { - return ipt.existsForOldIptables(table, chain, rulespec) - - } - cmd := append([]string{"-t", table, "-C", chain}, rulespec...) - err := ipt.run(cmd...) - eerr, eok := err.(*Error) - switch { - case err == nil: - return true, nil - case eok && eerr.ExitStatus() == 1: - return false, nil - default: - return false, err - } -} - -// Insert inserts rulespec to specified table/chain (in specified pos) -func (ipt *IPTables) Insert(table, chain string, pos int, rulespec ...string) error { - cmd := append([]string{"-t", table, "-I", chain, strconv.Itoa(pos)}, rulespec...) - return ipt.run(cmd...) -} - -// Append appends rulespec to specified table/chain -func (ipt *IPTables) Append(table, chain string, rulespec ...string) error { - cmd := append([]string{"-t", table, "-A", chain}, rulespec...) - return ipt.run(cmd...) -} - -// AppendUnique acts like Append except that it won't add a duplicate -func (ipt *IPTables) AppendUnique(table, chain string, rulespec ...string) error { - exists, err := ipt.Exists(table, chain, rulespec...) - if err != nil { - return err - } - - if !exists { - return ipt.Append(table, chain, rulespec...) - } - - return nil -} - -// Delete removes rulespec in specified table/chain -func (ipt *IPTables) Delete(table, chain string, rulespec ...string) error { - cmd := append([]string{"-t", table, "-D", chain}, rulespec...) - return ipt.run(cmd...) -} - -// List rules in specified table/chain -func (ipt *IPTables) List(table, chain string) ([]string, error) { - args := []string{"-t", table, "-S", chain} - return ipt.executeList(args) -} - -// List rules (with counters) in specified table/chain -func (ipt *IPTables) ListWithCounters(table, chain string) ([]string, error) { - args := []string{"-t", table, "-v", "-S", chain} - return ipt.executeList(args) -} - -// ListChains returns a slice containing the name of each chain in the specified table. -func (ipt *IPTables) ListChains(table string) ([]string, error) { - args := []string{"-t", table, "-S"} - - result, err := ipt.executeList(args) - if err != nil { - return nil, err - } - - // Iterate over rules to find all default (-P) and user-specified (-N) chains. - // Chains definition always come before rules. - // Format is the following: - // -P OUTPUT ACCEPT - // -N Custom - var chains []string - for _, val := range result { - if strings.HasPrefix(val, "-P") || strings.HasPrefix(val, "-N") { - chains = append(chains, strings.Fields(val)[1]) - } else { - break - } - } - return chains, nil -} - -// Stats lists rules including the byte and packet counts -func (ipt *IPTables) Stats(table, chain string) ([][]string, error) { - args := []string{"-t", table, "-L", chain, "-n", "-v", "-x"} - lines, err := ipt.executeList(args) - if err != nil { - return nil, err - } - - appendSubnet := func(addr string) string { - if strings.IndexByte(addr, byte('/')) < 0 { - if strings.IndexByte(addr, '.') < 0 { - return addr + "/128" - } - return addr + "/32" - } - return addr - } - - ipv6 := ipt.proto == ProtocolIPv6 - - rows := [][]string{} - for i, line := range lines { - // Skip over chain name and field header - if i < 2 { - continue - } - - // Fields: - // 0=pkts 1=bytes 2=target 3=prot 4=opt 5=in 6=out 7=source 8=destination 9=options - line = strings.TrimSpace(line) - fields := strings.Fields(line) - - // The ip6tables verbose output cannot be naively split due to the default "opt" - // field containing 2 single spaces. - if ipv6 { - // Check if field 6 is "opt" or "source" address - dest := fields[6] - ip, _, _ := net.ParseCIDR(dest) - if ip == nil { - ip = net.ParseIP(dest) - } - - // If we detected a CIDR or IP, the "opt" field is empty.. insert it. - if ip != nil { - f := []string{} - f = append(f, fields[:4]...) - f = append(f, " ") // Empty "opt" field for ip6tables - f = append(f, fields[4:]...) - fields = f - } - } - - // Adjust "source" and "destination" to include netmask, to match regular - // List output - fields[7] = appendSubnet(fields[7]) - fields[8] = appendSubnet(fields[8]) - - // Combine "options" fields 9... into a single space-delimited field. - options := fields[9:] - fields = fields[:9] - fields = append(fields, strings.Join(options, " ")) - rows = append(rows, fields) - } - return rows, nil -} - -func (ipt *IPTables) executeList(args []string) ([]string, error) { - var stdout bytes.Buffer - if err := ipt.runWithOutput(args, &stdout); err != nil { - return nil, err - } - - rules := strings.Split(stdout.String(), "\n") - - // strip trailing newline - if len(rules) > 0 && rules[len(rules)-1] == "" { - rules = rules[:len(rules)-1] - } - - // nftables mode doesn't return an error code when listing a non-existent - // chain. Patch that up. - if len(rules) == 0 && ipt.mode == "nf_tables" { - v := 1 - return nil, &Error{ - cmd: exec.Cmd{Args: args}, - msg: fmt.Sprintf("%s: No chain/target/match by that name.\n", getIptablesCommand(ipt.proto)), - proto: ipt.proto, - exitStatus: &v, - } - } - - for i, rule := range rules { - rules[i] = filterRuleOutput(rule) - } - - return rules, nil -} - -// NewChain creates a new chain in the specified table. -// If the chain already exists, it will result in an error. -func (ipt *IPTables) NewChain(table, chain string) error { - return ipt.run("-t", table, "-N", chain) -} - -// ClearChain flushed (deletes all rules) in the specified table/chain. -// If the chain does not exist, a new one will be created -func (ipt *IPTables) ClearChain(table, chain string) error { - err := ipt.NewChain(table, chain) - - // the exit code for "this table already exists" is different for - // different iptables modes - existsErr := 1 - if ipt.mode == "nf_tables" { - existsErr = 4 - } - - eerr, eok := err.(*Error) - switch { - case err == nil: - return nil - case eok && eerr.ExitStatus() == existsErr: - // chain already exists. Flush (clear) it. - return ipt.run("-t", table, "-F", chain) - default: - return err - } -} - -// RenameChain renames the old chain to the new one. -func (ipt *IPTables) RenameChain(table, oldChain, newChain string) error { - return ipt.run("-t", table, "-E", oldChain, newChain) -} - -// DeleteChain deletes the chain in the specified table. -// The chain must be empty -func (ipt *IPTables) DeleteChain(table, chain string) error { - return ipt.run("-t", table, "-X", chain) -} - -// ChangePolicy changes policy on chain to target -func (ipt *IPTables) ChangePolicy(table, chain, target string) error { - return ipt.run("-t", table, "-P", chain, target) -} - -// Check if the underlying iptables command supports the --random-fully flag -func (ipt *IPTables) HasRandomFully() bool { - return ipt.hasRandomFully -} - -// Return version components of the underlying iptables command -func (ipt *IPTables) GetIptablesVersion() (int, int, int) { - return ipt.v1, ipt.v2, ipt.v3 -} - -// run runs an iptables command with the given arguments, ignoring -// any stdout output -func (ipt *IPTables) run(args ...string) error { - return ipt.runWithOutput(args, nil) -} - -// runWithOutput runs an iptables command with the given arguments, -// writing any stdout output to the given writer -func (ipt *IPTables) runWithOutput(args []string, stdout io.Writer) error { - args = append([]string{ipt.path}, args...) - if ipt.hasWait { - args = append(args, "--wait") - } else { - fmu, err := newXtablesFileLock() - if err != nil { - return err - } - ul, err := fmu.tryLock() - if err != nil { - return err - } - defer ul.Unlock() - } - - var stderr bytes.Buffer - cmd := exec.Cmd{ - Path: ipt.path, - Args: args, - Stdout: stdout, - Stderr: &stderr, - } - - if err := cmd.Run(); err != nil { - switch e := err.(type) { - case *exec.ExitError: - return &Error{*e, cmd, stderr.String(), ipt.proto, nil} - default: - return err - } - } - - return nil -} - -// getIptablesCommand returns the correct command for the given protocol, either "iptables" or "ip6tables". -func getIptablesCommand(proto Protocol) string { - if proto == ProtocolIPv6 { - return "ip6tables" - } else { - return "iptables" - } -} - -// Checks if iptables has the "-C" and "--wait" flag -func getIptablesCommandSupport(v1 int, v2 int, v3 int) (bool, bool, bool) { - return iptablesHasCheckCommand(v1, v2, v3), iptablesHasWaitCommand(v1, v2, v3), iptablesHasRandomFully(v1, v2, v3) -} - -// getIptablesVersion returns the first three components of the iptables version -// and the operating mode (e.g. nf_tables or legacy) -// e.g. "iptables v1.3.66" would return (1, 3, 66, legacy, nil) -func extractIptablesVersion(str string) (int, int, int, string, error) { - versionMatcher := regexp.MustCompile(`v([0-9]+)\.([0-9]+)\.([0-9]+)(?:\s+\((\w+))?`) - result := versionMatcher.FindStringSubmatch(str) - if result == nil { - return 0, 0, 0, "", fmt.Errorf("no iptables version found in string: %s", str) - } - - v1, err := strconv.Atoi(result[1]) - if err != nil { - return 0, 0, 0, "", err - } - - v2, err := strconv.Atoi(result[2]) - if err != nil { - return 0, 0, 0, "", err - } - - v3, err := strconv.Atoi(result[3]) - if err != nil { - return 0, 0, 0, "", err - } - - mode := "legacy" - if result[4] != "" { - mode = result[4] - } - return v1, v2, v3, mode, nil -} - -// Runs "iptables --version" to get the version string -func getIptablesVersionString(path string) (string, error) { - cmd := exec.Command(path, "--version") - var out bytes.Buffer - cmd.Stdout = &out - err := cmd.Run() - if err != nil { - return "", err - } - return out.String(), nil -} - -// Checks if an iptables version is after 1.4.11, when --check was added -func iptablesHasCheckCommand(v1 int, v2 int, v3 int) bool { - if v1 > 1 { - return true - } - if v1 == 1 && v2 > 4 { - return true - } - if v1 == 1 && v2 == 4 && v3 >= 11 { - return true - } - return false -} - -// Checks if an iptables version is after 1.4.20, when --wait was added -func iptablesHasWaitCommand(v1 int, v2 int, v3 int) bool { - if v1 > 1 { - return true - } - if v1 == 1 && v2 > 4 { - return true - } - if v1 == 1 && v2 == 4 && v3 >= 20 { - return true - } - return false -} - -// Checks if an iptables version is after 1.6.2, when --random-fully was added -func iptablesHasRandomFully(v1 int, v2 int, v3 int) bool { - if v1 > 1 { - return true - } - if v1 == 1 && v2 > 6 { - return true - } - if v1 == 1 && v2 == 6 && v3 >= 2 { - return true - } - return false -} - -// Checks if a rule specification exists for a table -func (ipt *IPTables) existsForOldIptables(table, chain string, rulespec []string) (bool, error) { - rs := strings.Join(append([]string{"-A", chain}, rulespec...), " ") - args := []string{"-t", table, "-S"} - var stdout bytes.Buffer - err := ipt.runWithOutput(args, &stdout) - if err != nil { - return false, err - } - return strings.Contains(stdout.String(), rs), nil -} - -// counterRegex is the regex used to detect nftables counter format -var counterRegex = regexp.MustCompile(`^\[([0-9]+):([0-9]+)\] `) - -// filterRuleOutput works around some inconsistencies in output. -// For example, when iptables is in legacy vs. nftables mode, it produces -// different results. -func filterRuleOutput(rule string) string { - out := rule - - // work around an output difference in nftables mode where counters - // are output in iptables-save format, rather than iptables -S format - // The string begins with "[0:0]" - // - // Fixes #49 - if groups := counterRegex.FindStringSubmatch(out); groups != nil { - // drop the brackets - out = out[len(groups[0]):] - out = fmt.Sprintf("%s -c %s %s", out, groups[1], groups[2]) - } - - return out -} diff --git a/vendor/github.com/coreos/go-iptables/iptables/lock.go b/vendor/github.com/coreos/go-iptables/iptables/lock.go deleted file mode 100644 index a88e92b4e..000000000 --- a/vendor/github.com/coreos/go-iptables/iptables/lock.go +++ /dev/null @@ -1,84 +0,0 @@ -// Copyright 2015 CoreOS, Inc. -// -// 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 iptables - -import ( - "os" - "sync" - "syscall" -) - -const ( - // In earlier versions of iptables, the xtables lock was implemented - // via a Unix socket, but now flock is used via this lockfile: - // http://git.netfilter.org/iptables/commit/?id=aa562a660d1555b13cffbac1e744033e91f82707 - // Note the LSB-conforming "/run" directory does not exist on old - // distributions, so assume "/var" is symlinked - xtablesLockFilePath = "/var/run/xtables.lock" - - defaultFilePerm = 0600 -) - -type Unlocker interface { - Unlock() error -} - -type nopUnlocker struct{} - -func (_ nopUnlocker) Unlock() error { return nil } - -type fileLock struct { - // mu is used to protect against concurrent invocations from within this process - mu sync.Mutex - fd int -} - -// tryLock takes an exclusive lock on the xtables lock file without blocking. -// This is best-effort only: if the exclusive lock would block (i.e. because -// another process already holds it), no error is returned. Otherwise, any -// error encountered during the locking operation is returned. -// The returned Unlocker should be used to release the lock when the caller is -// done invoking iptables commands. -func (l *fileLock) tryLock() (Unlocker, error) { - l.mu.Lock() - err := syscall.Flock(l.fd, syscall.LOCK_EX|syscall.LOCK_NB) - switch err { - case syscall.EWOULDBLOCK: - l.mu.Unlock() - return nopUnlocker{}, nil - case nil: - return l, nil - default: - l.mu.Unlock() - return nil, err - } -} - -// Unlock closes the underlying file, which implicitly unlocks it as well. It -// also unlocks the associated mutex. -func (l *fileLock) Unlock() error { - defer l.mu.Unlock() - return syscall.Close(l.fd) -} - -// newXtablesFileLock opens a new lock on the xtables lockfile without -// acquiring the lock -func newXtablesFileLock() (*fileLock, error) { - fd, err := syscall.Open(xtablesLockFilePath, os.O_CREATE, defaultFilePerm) - if err != nil { - return nil, err - } - return &fileLock{fd: fd}, nil -} diff --git a/vendor/modules.txt b/vendor/modules.txt index c4a410be6..9697bc122 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -144,8 +144,6 @@ github.com/containers/storage/drivers/quota github.com/containers/storage/pkg/fsutils github.com/containers/storage/pkg/ostree github.com/containers/storage/drivers/copy -# github.com/coreos/go-iptables v0.4.1 -github.com/coreos/go-iptables/iptables # github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a github.com/coreos/go-systemd/activation github.com/coreos/go-systemd/dbus |