/*++ /* NAME /* postconf 3h /* SUMMARY /* module interfaces /* SYNOPSIS /* #include /* DESCRIPTION /* .nf /* * System library. */ #include /* * Utility library. */ #include #include #include #include /* * What we're supposed to be doing. */ #define PCF_SHOW_NONDEF (1<<0) /* show main.cf non-default settings */ #define PCF_SHOW_DEFS (1<<1) /* show main.cf default setting */ #define PCF_HIDE_NAME (1<<2) /* hide main.cf parameter name */ #define PCF_SHOW_MAPS (1<<3) /* show map types */ #define PCF_EDIT_CONF (1<<4) /* edit main.cf or master.cf */ #define PCF_SHOW_LOCKS (1<<5) /* show mailbox lock methods */ #define PCF_SHOW_EVAL (1<<6) /* expand main.cf right-hand sides */ #define PCF_SHOW_SASL_SERV (1<<7) /* show server auth plugin types */ #define PCF_SHOW_SASL_CLNT (1<<8) /* show client auth plugin types */ #define PCF_COMMENT_OUT (1<<9) /* #-out selected main.cf entries */ #define PCF_MASTER_ENTRY (1<<10) /* manage master.cf entries */ #define PCF_FOLD_LINE (1<<11) /* fold long *.cf entries */ #define PCF_EDIT_EXCL (1<<12) /* exclude main.cf entries */ #define PCF_MASTER_FLD (1<<13) /* hierarchical pathname */ #define PCF_MAIN_PARAM (1<<14) /* manage main.cf entries */ #define PCF_EXP_DSN_TEMPL (1<<15) /* expand bounce templates */ #define PCF_PARAM_CLASS (1<<16) /* select parameter class */ #define PCF_MAIN_OVER (1<<17) /* override parameter values */ #define PCF_DUMP_DSN_TEMPL (1<<18) /* show bounce templates */ #define PCF_MASTER_PARAM (1<<19) /* manage master.cf -o name=value */ #define PCF_HIDE_VALUE (1<<20) /* hide main.cf/master.cf =value */ #define PCF_SHOW_TLS (1<<21) /* TLS support introspection */ #define PCF_DEF_MODE 0 /* * Structure for one "valid parameter" (built-in, service-defined or valid * user-defined). See the postconf_builtin, postconf_service and * postconf_user modules for narrative text. */ typedef struct { int flags; /* see below */ void *param_data; /* mostly, the default value */ const char *(*convert_fn) (void *); /* value to string */ } PCF_PARAM_NODE; /* Values for flags. See the postconf_node module for narrative text. */ #define PCF_PARAM_FLAG_RAW (1<<0) /* raw parameter value */ #define PCF_PARAM_FLAG_BUILTIN (1<<1) /* built-in parameter name */ #define PCF_PARAM_FLAG_SERVICE (1<<2) /* service-defined parameter name */ #define PCF_PARAM_FLAG_USER (1<<3) /* user-defined parameter name */ #define PCF_PARAM_FLAG_LEGACY (1<<4) /* legacy parameter name */ #define PCF_PARAM_FLAG_READONLY (1<<5) /* legacy parameter name */ #define PCF_PARAM_FLAG_DBMS (1<<6) /* dbms-defined parameter name */ #define PCF_PARAM_MASK_CLASS \ (PCF_PARAM_FLAG_BUILTIN | PCF_PARAM_FLAG_SERVICE | PCF_PARAM_FLAG_USER) #define PCF_PARAM_CLASS_OVERRIDE(node, class) \ ((node)->flags = (((node)->flags & ~PCF_PARAM_MASK_CLASS) | (class))) #define PCF_RAW_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_RAW) #define PCF_BUILTIN_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_BUILTIN) #define PCF_SERVICE_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_SERVICE) #define PCF_USER_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_USER) #define PCF_LEGACY_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_LEGACY) #define PCF_READONLY_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_READONLY) #define PCF_DBMS_PARAMETER(node) ((node)->flags & PCF_PARAM_FLAG_DBMS) /* Values for param_data. See postconf_node module for narrative text. */ #define PCF_PARAM_NO_DATA ((char *) 0) /* * Lookup table for global "valid parameter" information. */ #define PCF_PARAM_TABLE HTABLE #define PCF_PARAM_INFO HTABLE_INFO extern PCF_PARAM_TABLE *pcf_param_table; /* * postconf_node.c. */ #define PCF_PARAM_TABLE_CREATE(size) htable_create(size); #define PCF_PARAM_NODE_CAST(ptr) ((PCF_PARAM_NODE *) (ptr)) #define PCF_PARAM_TABLE_LIST(table) htable_list(table) #define PCF_PARAM_INFO_NAME(ht) ((const char *) (ht)->key) #define PCF_PARAM_INFO_NODE(ht) PCF_PARAM_NODE_CAST((ht)->value) #define PCF_PARAM_TABLE_FIND(table, name) \ PCF_PARAM_NODE_CAST(htable_find((table), (name))) #define PCF_PARAM_TABLE_LOCATE(table, name) htable_locate((table), (name)) #define PCF_PARAM_TABLE_ENTER(table, name, flags, data, func) \ htable_enter((table), (name), (char *) pcf_make_param_node((flags), \ (data), (func))) extern PCF_PARAM_NODE *pcf_make_param_node(int, void *, const char *(*) (void *)); extern const char *pcf_convert_param_node(int, const char *, PCF_PARAM_NODE *); extern VSTRING *pcf_param_string_buf; /* * Structure of one master.cf entry. */ typedef struct { char *name_space; /* service/type, parameter name space */ ARGV *argv; /* null, or master.cf fields */ DICT *all_params; /* null, or all name=value entries */ DICT *ro_params; /* read-only name=value entries */ HTABLE *valid_names; /* null, or "valid" parameter names */ } PCF_MASTER_ENT; #define PCF_MASTER_MIN_FIELDS 8 /* mandatory field minimum */ #define PCF_MASTER_NAME_SERVICE "service" #define PCF_MASTER_NAME_TYPE "type" #define PCF_MASTER_NAME_PRIVATE "private" #define PCF_MASTER_NAME_UNPRIV "unprivileged" #define PCF_MASTER_NAME_CHROOT "chroot" #define PCF_MASTER_NAME_WAKEUP "wakeup" #define PCF_MASTER_NAME_MAXPROC "process_limit" #define PCF_MASTER_NAME_CMD "command" #define PCF_MASTER_FLD_SERVICE 0 /* service name */ #define PCF_MASTER_FLD_TYPE 1 /* service type */ #define PCF_MASTER_FLD_PRIVATE 2 /* private service */ #define PCF_MASTER_FLD_UNPRIV 3 /* unprivileged service */ #define PCF_MASTER_FLD_CHROOT 4 /* chrooted service */ #define PCF_MASTER_FLD_WAKEUP 5 /* wakeup timer */ #define PCF_MASTER_FLD_MAXPROC 6 /* process limit */ #define PCF_MASTER_FLD_CMD 7 /* command */ #define PCF_MASTER_FLD_WILDC -1 /* wild-card */ #define PCF_MASTER_FLD_NONE -2 /* not available */ /* * Lookup table for master.cf entries. The table is terminated with an entry * that has a null argv member. */ extern PCF_MASTER_ENT *pcf_master_table; /* * Line-wrapping support. */ #define PCF_LINE_LIMIT 80 /* try to fold longer lines */ #define PCF_SEPARATORS " \t\r\n" #define PCF_INDENT_LEN 4 /* indent long text by 4 */ #define PCF_INDENT_TEXT " " /* * XXX Global so that postconf_builtin.c call-backs can see it. */ extern int pcf_cmd_mode; /* * postconf_misc.c. */ extern void pcf_set_config_dir(void); extern const char *pcf_get_main_path(void); extern const char *pcf_get_master_path(void); /* * postconf_main.c */ extern void pcf_read_parameters(void); extern void pcf_set_parameters(char **); extern void pcf_show_parameters(VSTREAM *, int, int, char **); /* * postconf_edit.c */ extern void pcf_edit_main(int, int, char **); extern void pcf_edit_master(int, int, char **); /* * postconf_master.c. */ extern const char pcf_daemon_options_expecting_value[]; extern void pcf_read_master(int); extern void pcf_show_master_entries(VSTREAM *, int, int, char **); extern const char *pcf_parse_master_entry(PCF_MASTER_ENT *, const char *); extern void pcf_print_master_entry(VSTREAM *, int, PCF_MASTER_ENT *); extern void pcf_free_master_entry(PCF_MASTER_ENT *); extern void pcf_show_master_fields(VSTREAM *, int, int, char **); extern void pcf_edit_master_field(PCF_MASTER_ENT *, int, const char *); extern void pcf_show_master_params(VSTREAM *, int, int, char **); extern void pcf_edit_master_param(PCF_MASTER_ENT *, int, const char *, const char *); #define PCF_WARN_ON_OPEN_ERROR 0 #define PCF_FAIL_ON_OPEN_ERROR 1 #define PCF_MASTER_BLANKS " \t\r\n" /* XXX */ /* * Master.cf parameter namespace management. The idea is to manage master.cf * "-o name=value" settings with other tools than text editors. * * The natural choice is to use "service-name.service-type.parameter-name", but * unfortunately the '.' may appear in service and parameter names. * * For example, a spawn(8) listener can have a service name 127.0.0.1:10028. * This service name becomes part of a service-dependent parameter name * "127.0.0.1:10028_time_limit". All those '.' characters mean we can't use * '.' as the parameter namespace delimiter. * * (We could require that such service names are specified as $foo:port with * the value of "foo" defined in main.cf or at the top of master.cf.) * * But it is easier if we use '/' instead. */ #define PCF_NAMESP_SEP_CH '/' #define PCF_NAMESP_SEP_STR "/" #define PCF_LEGACY_SEP_CH '.' /* * postconf_match.c. */ #define PCF_MATCH_WILDC_STR "*" #define PCF_MATCH_ANY(p) ((p)[0] == PCF_MATCH_WILDC_STR[0] && (p)[1] == 0) #define PCF_MATCH_STRING(p, s) (PCF_MATCH_ANY(p) || strcmp((p), (s)) == 0) extern ARGV *pcf_parse_service_pattern(const char *, int, int); extern int pcf_parse_field_pattern(const char *); #define PCF_IS_MAGIC_SERVICE_PATTERN(pat) \ (PCF_MATCH_ANY((pat)->argv[0]) || PCF_MATCH_ANY((pat)->argv[1])) #define PCF_MATCH_SERVICE_PATTERN(pat, name, type) \ (PCF_MATCH_STRING((pat)->argv[0], (name)) \ && PCF_MATCH_STRING((pat)->argv[1], (type))) #define pcf_is_magic_field_pattern(pat) ((pat) == PCF_MASTER_FLD_WILDC) #define pcf_str_field_pattern(pat) ((const char *) (pcf_field_name_offset[pat].name)) #define PCF_IS_MAGIC_PARAM_PATTERN(pat) PCF_MATCH_ANY(pat) #define PCF_MATCH_PARAM_PATTERN(pat, name) PCF_MATCH_STRING((pat), (name)) /* The following is not part of the postconf_match API. */ extern NAME_CODE pcf_field_name_offset[]; /* * postconf_builtin.c. */ extern void pcf_register_builtin_parameters(const char *, pid_t); /* * postconf_service.c. */ extern void pcf_register_service_parameters(void); /* * Parameter context structure. */ typedef struct { PCF_MASTER_ENT *local_scope; int param_class; } PCF_PARAM_CTX; /* * postconf_user.c. */ extern void pcf_register_user_parameters(void); /* * postconf_dbms.c */ extern void pcf_register_dbms_parameters(const char *, const char *(*) (const char *, int, PCF_MASTER_ENT *), PCF_MASTER_ENT *); /* * postconf_lookup.c. */ extern const char *pcf_lookup_parameter_value(int, const char *, PCF_MASTER_ENT *, PCF_PARAM_NODE *); extern char *pcf_expand_parameter_value(VSTRING *, int, const char *, PCF_MASTER_ENT *); /* * postconf_print.c. */ extern void PRINTFLIKE(3, 4) pcf_print_line(VSTREAM *, int, const char *,...); /* * postconf_unused.c. */ extern void pcf_flag_unused_main_parameters(void); extern void pcf_flag_unused_master_parameters(void); /* * postconf_other.c. */ extern void pcf_show_maps(void); extern void pcf_show_locks(void); extern void pcf_show_sasl(int); extern void pcf_show_tls(const char *); /* LICENSE /* .ad /* .fi /* The Secure Mailer license must be distributed with this software. /* AUTHOR(S) /* Wietse Venema /* IBM T.J. Watson Research /* P.O. Box 704 /* Yorktown Heights, NY 10598, USA /* /* Wietse Venema /* Google, Inc. /* 111 8th Avenue /* New York, NY 10011, USA /*--*/