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ftp: add option to disable tls13

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This commit is contained in:
Ivan Andreev 2021-07-26 14:32:29 +03:00
parent f37b25a2df
commit f50537b64b
1 changed files with 9 additions and 0 deletions
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9
backend/ftp/ftp.go
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@ -124,6 +124,11 @@ Increase if default size is not enough resulting in TLS resumption errors.
Enabled by default. Use 0 to disable.`,
Default: 32,
Advanced: true,
}, {
Name: "disable_tls13",
Help: "Disable TLS 1.3 (workaround for FTP servers with buggy TLS)",
Default: false,
Advanced: true,
}, {
Name: config.ConfigEncoding,
Help: config.ConfigEncodingHelp,
@ -155,6 +160,7 @@ type Options struct {
TLS bool `config:"tls"`
ExplicitTLS bool `config:"explicit_tls"`
TLSCacheSize int `config:"tls_cache_size"`
DisableTLS13 bool `config:"disable_tls13"`
Concurrency int `config:"concurrency"`
SkipVerifyTLSCert bool `config:"no_check_certificate"`
DisableEPSV bool `config:"disable_epsv"`
@ -446,6 +452,9 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (ff fs.Fs
if opt.TLSCacheSize > 0 {
tlsConfig.ClientSessionCache = tls.NewLRUClientSessionCache(opt.TLSCacheSize)
}
if opt.DisableTLS13 {
tlsConfig.MaxVersion = tls.VersionTLS12
}
}
u := protocol + path.Join(dialAddr+"/", root)
ci := fs.GetConfig(ctx)