183 lines
7.0 KiB
Plaintext
183 lines
7.0 KiB
Plaintext
module Krb5 =
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autoload xfm
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let comment = Inifile.comment IniFile.comment_re "#"
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let empty = Inifile.empty
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let eol = Inifile.eol
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let dels = Util.del_str
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let indent = del /[ \t]*/ ""
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let comma_or_space_sep = del /[ \t,]{1,}/ " "
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let eq = del /[ \t]*=[ \t]*/ " = "
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let eq_openbr = del /[ \t]*=[ \t\n]*\{[ \t]*\n/ " = {\n"
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let closebr = del /[ \t]*\}/ "}"
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(* These two regexps for realms and apps are not entirely true
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- strictly speaking, there's no requirement that a realm is all upper case
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and an application only uses lowercase. But it's what's used in practice.
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Without that distinction we couldn't distinguish between applications
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and realms in the [appdefaults] section.
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*)
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let include_re = /include(dir)?/
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let realm_re = /[A-Z0-9][.a-zA-Z0-9-]*/
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let realm_anycase_re = /[A-Za-z0-9][.a-zA-Z0-9-]*/
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let app_re = /[a-z][a-zA-Z0-9_]*/
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let name_re = /[.a-zA-Z0-9_-]+/ - include_re
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let value_br = store /[^;# \t\r\n{}]+/
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let value = store /[^;# \t\r\n]+/
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let entry (kw:regexp) (sep:lens) (value:lens) (comment:lens)
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= [ indent . key kw . sep . value . (comment|eol) ] | comment
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let subsec_entry (kw:regexp) (sep:lens) (comment:lens)
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= ( entry kw sep value_br comment ) | empty
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let simple_section (n:string) (k:regexp) =
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let title = Inifile.indented_title n in
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let entry = entry k eq value comment in
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Inifile.record title entry
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let record (t:string) (e:lens) =
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let title = Inifile.indented_title t in
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Inifile.record title e
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let v4_name_convert (subsec:lens) = [ indent . key "v4_name_convert" .
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eq_openbr . subsec* . closebr . eol ]
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(*
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For the enctypes this appears to be a list of the valid entries:
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c4-hmac arcfour-hmac aes128-cts rc4-hmac
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arcfour-hmac-md5 des3-cbc-sha1 des-cbc-md5 des-cbc-crc
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*)
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let enctype_re = /[a-zA-Z0-9-]{3,}/
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let enctypes = /permitted_enctypes|default_tgs_enctypes|default_tkt_enctypes/i
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(* An #eol label prevents ambiguity between "k = v1 v2" and "k = v1\n k = v2" *)
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let enctype_list (nr:regexp) (ns:string) =
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indent . del nr ns . eq
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. Build.opt_list [ label ns . store enctype_re ] comma_or_space_sep
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. (comment|eol) . [ label "#eol" ]
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let libdefaults =
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let option = entry (name_re - ("v4_name_convert" |enctypes)) eq value comment in
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let enctype_lists = enctype_list /permitted_enctypes/i "permitted_enctypes"
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| enctype_list /default_tgs_enctypes/i "default_tgs_enctypes"
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| enctype_list /default_tkt_enctypes/i "default_tkt_enctypes" in
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let subsec = [ indent . key /host|plain/ . eq_openbr .
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(subsec_entry name_re eq comment)* . closebr . eol ] in
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record "libdefaults" (option|enctype_lists|v4_name_convert subsec)
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let login =
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let keys = /krb[45]_get_tickets|krb4_convert|krb_run_aklog/
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|/aklog_path|accept_passwd/ in
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simple_section "login" keys
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let appdefaults =
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let option = entry (name_re - ("realm" | "application")) eq value_br comment in
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let realm = [ indent . label "realm" . store realm_re .
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eq_openbr . (option|empty)* . closebr . eol ] in
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let app = [ indent . label "application" . store app_re .
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eq_openbr . (realm|option|empty)* . closebr . eol] in
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record "appdefaults" (option|realm|app)
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let realms =
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let simple_option = /kdc|admin_server|database_module|default_domain/
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|/v4_realm|auth_to_local(_names)?|master_kdc|kpasswd_server/
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|/admin_server|ticket_lifetime|pkinit_(anchors|identities|identity|pool)/
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|/krb524_server/ in
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let subsec_option = /v4_instance_convert/ in
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let option = subsec_entry simple_option eq comment in
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let subsec = [ indent . key subsec_option . eq_openbr .
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(subsec_entry name_re eq comment)* . closebr . eol ] in
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let v4subsec = [ indent . key /host|plain/ . eq_openbr .
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(subsec_entry name_re eq comment)* . closebr . eol ] in
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let realm = [ indent . label "realm" . store realm_anycase_re .
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eq_openbr . (option|subsec|(v4_name_convert v4subsec))* .
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closebr . eol ] in
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record "realms" (realm|comment)
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let domain_realm =
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simple_section "domain_realm" name_re
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let logging =
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let keys = /kdc|admin_server|default/ in
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let xchg (m:regexp) (d:string) (l:string) =
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del m d . label l in
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let xchgs (m:string) (l:string) = xchg m m l in
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let dest =
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[ xchg /FILE[=:]/ "FILE=" "file" . value ]
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|[ xchgs "STDERR" "stderr" ]
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|[ xchgs "CONSOLE" "console" ]
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|[ xchgs "DEVICE=" "device" . value ]
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|[ xchgs "SYSLOG" "syslog" .
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([ xchgs ":" "severity" . store /[A-Za-z0-9]+/ ].
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[ xchgs ":" "facility" . store /[A-Za-z0-9]+/ ]?)? ] in
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let entry = [ indent . key keys . eq . dest . (comment|eol) ] | comment in
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record "logging" entry
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let capaths =
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let realm = [ indent . key realm_re .
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eq_openbr .
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(entry realm_re eq value_br comment)* . closebr . eol ] in
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record "capaths" (realm|comment)
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let dbdefaults =
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let keys = /database_module|ldap_kerberos_container_dn|ldap_kdc_dn/
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|/ldap_kadmind_dn|ldap_service_password_file|ldap_servers/
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|/ldap_conns_per_server/ in
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simple_section "dbdefaults" keys
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let dbmodules =
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let subsec_key = /database_name|db_library|disable_last_success/
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|/disable_lockout|ldap_conns_per_server|ldap_(kdc|kadmind)_dn/
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|/ldap_(kdc|kadmind)_sasl_mech|ldap_(kdc|kadmind)_sasl_authcid/
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|/ldap_(kdc|kadmind)_sasl_authzid|ldap_(kdc|kadmind)_sasl_realm/
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|/ldap_kerberos_container_dn|ldap_servers/
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|/ldap_service_password_file|mapsize|max_readers|nosync/
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|/unlockiter/ in
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let subsec_option = subsec_entry subsec_key eq comment in
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let key = /db_module_dir/ in
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let option = entry key eq value comment in
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let realm = [ indent . label "realm" . store realm_re .
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eq_openbr . (subsec_option)* . closebr . eol ] in
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record "dbmodules" (option|realm)
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(* This section is not documented in the krb5.conf manpage,
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but the Fermi example uses it. *)
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let instance_mapping =
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let value = dels "\"" . store /[^;# \t\r\n{}]*/ . dels "\"" in
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let map_node = label "mapping" . store /[a-zA-Z0-9\/*]+/ in
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let mapping = [ indent . map_node . eq .
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[ label "value" . value ] . (comment|eol) ] in
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let instance = [ indent . key name_re .
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eq_openbr . (mapping|comment)* . closebr . eol ] in
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record "instancemapping" instance
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let kdc =
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simple_section "kdc" /profile/
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let pam =
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simple_section "pam" name_re
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let plugins =
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let interface_option = subsec_entry name_re eq comment in
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let interface = [ indent . key name_re .
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eq_openbr . (interface_option)* . closebr . eol ] in
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record "plugins" (interface|comment)
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let includes = Build.key_value_line include_re Sep.space (store Rx.fspath)
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let include_lines = includes . (comment|empty)*
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let lns = (comment|empty)* .
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(libdefaults|login|appdefaults|realms|domain_realm
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|logging|capaths|dbdefaults|dbmodules|instance_mapping|kdc|pam|include_lines
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|plugins)*
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let filter = (incl "/etc/krb5.conf.d/*.conf")
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. (incl "/etc/krb5.conf")
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let xfm = transform lns filter
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