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-rw-r--r--src/postconf/postconf_builtin.c461
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diff --git a/src/postconf/postconf_builtin.c b/src/postconf/postconf_builtin.c
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+/*++
+/* NAME
+/* postconf_builtin 3
+/* SUMMARY
+/* built-in main.cf parameter support
+/* SYNOPSIS
+/* #include <postconf.h>
+/*
+/* void pcf_register_builtin_parameters(procname, pid)
+/* const char *procname;
+/* pid_t pid;
+/* DESCRIPTION
+/* pcf_register_builtin_parameters() initializes the global
+/* main.cf parameter name space and adds all built-in parameter
+/* information.
+/*
+/* Arguments:
+/*.IP procname
+/* Provides the default value for the "process_name" parameter.
+/*.IP pid
+/* Provides the default value for the "process_id" parameter.
+/* DIAGNOSTICS
+/* Problems are reported to the standard error stream.
+/* 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
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <string.h>
+
+#ifdef USE_PATHS_H
+#include <paths.h>
+#endif
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+#include <htable.h>
+#include <vstring.h>
+#include <get_hostname.h>
+#include <stringops.h>
+
+/* Global library. */
+
+#include <mynetworks.h>
+#include <mail_conf.h>
+#include <mail_params.h>
+#include <mail_version.h>
+#include <mail_proto.h>
+#include <mail_addr.h>
+#include <inet_proto.h>
+#include <server_acl.h>
+
+/* Application-specific. */
+
+#include <postconf.h>
+
+ /*
+ * Support for built-in parameters: declarations generated by scanning
+ * actual C source files.
+ */
+#include "time_vars.h"
+#include "bool_vars.h"
+#include "int_vars.h"
+#include "str_vars.h"
+#include "raw_vars.h"
+#include "nint_vars.h"
+#include "nbool_vars.h"
+#include "long_vars.h"
+
+ /*
+ * Support for built-in parameters: manually extracted.
+ */
+#include "install_vars.h"
+
+ /*
+ * Support for built-in parameters: lookup tables generated by scanning
+ * actual C source files.
+ */
+static const CONFIG_TIME_TABLE pcf_time_table[] = {
+#include "time_table.h"
+ 0,
+};
+
+static const CONFIG_BOOL_TABLE pcf_bool_table[] = {
+#include "bool_table.h"
+ 0,
+};
+
+static const CONFIG_INT_TABLE pcf_int_table[] = {
+#include "int_table.h"
+ 0,
+};
+
+static const CONFIG_STR_TABLE pcf_str_table[] = {
+#include "str_table.h"
+#include "install_table.h"
+ 0,
+};
+
+static const CONFIG_RAW_TABLE pcf_raw_table[] = {
+#include "raw_table.h"
+ 0,
+};
+
+static const CONFIG_NINT_TABLE pcf_nint_table[] = {
+#include "nint_table.h"
+ 0,
+};
+
+static const CONFIG_NBOOL_TABLE pcf_nbool_table[] = {
+#include "nbool_table.h"
+ 0,
+};
+
+static const CONFIG_LONG_TABLE pcf_long_table[] = {
+#include "long_table.h"
+ 0,
+};
+
+ /*
+ * Legacy parameters for backwards compatibility.
+ */
+static const CONFIG_STR_TABLE pcf_legacy_str_table[] = {
+ {"virtual_maps", ""},
+ {"fallback_relay", ""},
+ {"authorized_verp_clients", ""},
+ {"smtpd_client_connection_limit_exceptions", ""},
+ {"postscreen_dnsbl_ttl", ""},
+ 0,
+};
+
+ /*
+ * Parameters whose default values are normally initialized by calling a
+ * function. We direct the calls to our own versions of those functions
+ * because the run-time conditions are slightly different.
+ *
+ * Important: if the evaluation of a parameter default value has any side
+ * effects, then those side effects must happen only once.
+ */
+static const char *pcf_check_myhostname(void);
+static const char *pcf_check_mydomainname(void);
+static const char *pcf_mynetworks(void);
+
+#include "str_fn_vars.h"
+
+static const CONFIG_STR_FN_TABLE pcf_str_fn_table[] = {
+#include "str_fn_table.h"
+ 0,
+};
+
+ /*
+ * Parameters whose default values are normally initialized by ad-hoc code.
+ * The AWK script cannot identify these parameters or values, so we provide
+ * our own.
+ *
+ * Important: if the evaluation of a parameter default value has any side
+ * effects, then those side effects must happen only once.
+ */
+static CONFIG_STR_TABLE pcf_adhoc_procname = {VAR_PROCNAME};
+static CONFIG_STR_TABLE pcf_adhoc_servname = {VAR_SERVNAME};
+static CONFIG_INT_TABLE pcf_adhoc_pid = {VAR_PID};
+
+#define STR(x) vstring_str(x)
+
+/* pcf_check_myhostname - lookup hostname and validate */
+
+static const char *pcf_check_myhostname(void)
+{
+ static const char *name;
+ const char *dot;
+ const char *domain;
+
+ /*
+ * Use cached result.
+ */
+ if (name)
+ return (name);
+
+ /*
+ * If the local machine name is not in FQDN form, try to append the
+ * contents of $mydomain.
+ */
+ name = get_hostname();
+ if ((dot = strchr(name, '.')) == 0) {
+ if ((domain = mail_conf_lookup_eval(VAR_MYDOMAIN)) == 0)
+ domain = DEF_MYDOMAIN;
+ name = concatenate(name, ".", domain, (char *) 0);
+ }
+ return (name);
+}
+
+/* pcf_get_myhostname - look up and store my hostname */
+
+static void pcf_get_myhostname(void)
+{
+ const char *name;
+
+ if ((name = mail_conf_lookup_eval(VAR_MYHOSTNAME)) == 0)
+ name = pcf_check_myhostname();
+ var_myhostname = mystrdup(name);
+}
+
+/* pcf_check_mydomainname - lookup domain name and validate */
+
+static const char *pcf_check_mydomainname(void)
+{
+ static const char *domain;
+ char *dot;
+
+ /*
+ * Use cached result.
+ */
+ if (domain)
+ return (domain);
+
+ /*
+ * Use a default domain when the hostname is not a FQDN ("foo").
+ */
+ if (var_myhostname == 0)
+ pcf_get_myhostname();
+ if ((dot = strchr(var_myhostname, '.')) == 0)
+ return (domain = DEF_MYDOMAIN);
+ return (domain = mystrdup(dot + 1));
+}
+
+/* pcf_mynetworks - lookup network address list */
+
+static const char *pcf_mynetworks(void)
+{
+ static const char *networks;
+ VSTRING *exp_buf;
+ const char *junk;
+
+ /*
+ * Use cached result.
+ */
+ if (networks)
+ return (networks);
+
+ exp_buf = vstring_alloc(100);
+
+ if (var_inet_interfaces == 0) {
+ if ((pcf_cmd_mode & PCF_SHOW_DEFS)
+ || (junk = mail_conf_lookup_eval(VAR_INET_INTERFACES)) == 0)
+ junk = pcf_expand_parameter_value(exp_buf, pcf_cmd_mode,
+ DEF_INET_INTERFACES,
+ (PCF_MASTER_ENT *) 0);
+ var_inet_interfaces = mystrdup(junk);
+ }
+ if (var_mynetworks_style == 0) {
+ if ((pcf_cmd_mode & PCF_SHOW_DEFS)
+ || (junk = mail_conf_lookup_eval(VAR_MYNETWORKS_STYLE)) == 0)
+ junk = pcf_expand_parameter_value(exp_buf, pcf_cmd_mode,
+ DEF_MYNETWORKS_STYLE,
+ (PCF_MASTER_ENT *) 0);
+ var_mynetworks_style = mystrdup(junk);
+ }
+ if (var_inet_protocols == 0) {
+ if ((pcf_cmd_mode & PCF_SHOW_DEFS)
+ || (junk = mail_conf_lookup_eval(VAR_INET_PROTOCOLS)) == 0)
+ junk = pcf_expand_parameter_value(exp_buf, pcf_cmd_mode,
+ DEF_INET_PROTOCOLS,
+ (PCF_MASTER_ENT *) 0);
+ var_inet_protocols = mystrdup(junk);
+ (void) inet_proto_init(VAR_INET_PROTOCOLS, var_inet_protocols);
+ }
+ vstring_free(exp_buf);
+ return (networks = mystrdup(mynetworks()));
+}
+
+/* pcf_conv_bool_parameter - get boolean parameter string value */
+
+static const char *pcf_conv_bool_parameter(void *ptr)
+{
+ CONFIG_BOOL_TABLE *cbt = (CONFIG_BOOL_TABLE *) ptr;
+
+ return (cbt->defval ? "yes" : "no");
+}
+
+/* pcf_conv_time_parameter - get relative time parameter string value */
+
+static const char *pcf_conv_time_parameter(void *ptr)
+{
+ CONFIG_TIME_TABLE *ctt = (CONFIG_TIME_TABLE *) ptr;
+
+ return (ctt->defval);
+}
+
+/* pcf_conv_int_parameter - get integer parameter string value */
+
+static const char *pcf_conv_int_parameter(void *ptr)
+{
+ CONFIG_INT_TABLE *cit = (CONFIG_INT_TABLE *) ptr;
+
+ return (STR(vstring_sprintf(pcf_param_string_buf, "%d", cit->defval)));
+}
+
+/* pcf_conv_str_parameter - get string parameter string value */
+
+static const char *pcf_conv_str_parameter(void *ptr)
+{
+ CONFIG_STR_TABLE *cst = (CONFIG_STR_TABLE *) ptr;
+
+ return (cst->defval);
+}
+
+/* pcf_conv_str_fn_parameter - get string-function parameter string value */
+
+static const char *pcf_conv_str_fn_parameter(void *ptr)
+{
+ CONFIG_STR_FN_TABLE *cft = (CONFIG_STR_FN_TABLE *) ptr;
+
+ return (cft->defval());
+}
+
+/* pcf_conv_raw_parameter - get raw string parameter string value */
+
+static const char *pcf_conv_raw_parameter(void *ptr)
+{
+ CONFIG_RAW_TABLE *rst = (CONFIG_RAW_TABLE *) ptr;
+
+ return (rst->defval);
+}
+
+/* pcf_conv_nint_parameter - get new integer parameter string value */
+
+static const char *pcf_conv_nint_parameter(void *ptr)
+{
+ CONFIG_NINT_TABLE *rst = (CONFIG_NINT_TABLE *) ptr;
+
+ return (rst->defval);
+}
+
+/* pcf_conv_nbool_parameter - get new boolean parameter string value */
+
+static const char *pcf_conv_nbool_parameter(void *ptr)
+{
+ CONFIG_NBOOL_TABLE *bst = (CONFIG_NBOOL_TABLE *) ptr;
+
+ return (bst->defval);
+}
+
+/* pcf_conv_long_parameter - get long parameter string value */
+
+static const char *pcf_conv_long_parameter(void *ptr)
+{
+ CONFIG_LONG_TABLE *clt = (CONFIG_LONG_TABLE *) ptr;
+
+ return (STR(vstring_sprintf(pcf_param_string_buf, "%ld", clt->defval)));
+}
+
+/* pcf_register_builtin_parameters - add built-ins to the global name space */
+
+void pcf_register_builtin_parameters(const char *procname, pid_t pid)
+{
+ const char *myname = "pcf_register_builtin_parameters";
+ const CONFIG_TIME_TABLE *ctt;
+ const CONFIG_BOOL_TABLE *cbt;
+ const CONFIG_INT_TABLE *cit;
+ const CONFIG_STR_TABLE *cst;
+ const CONFIG_STR_FN_TABLE *cft;
+ const CONFIG_RAW_TABLE *rst;
+ const CONFIG_NINT_TABLE *nst;
+ const CONFIG_NBOOL_TABLE *bst;
+ const CONFIG_LONG_TABLE *lst;
+
+ /*
+ * Sanity checks.
+ */
+ if (pcf_param_table != 0)
+ msg_panic("%s: global parameter table is already initialized", myname);
+
+ /*
+ * Initialize the global parameter table.
+ */
+ pcf_param_table = PCF_PARAM_TABLE_CREATE(1000);
+
+ /*
+ * Add the built-in parameters to the global name space. The class
+ * (built-in) is tentative; some parameters are actually service-defined,
+ * but they have their own default value.
+ */
+ for (ctt = pcf_time_table; ctt->name; ctt++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, ctt->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) ctt,
+ pcf_conv_time_parameter);
+ for (cbt = pcf_bool_table; cbt->name; cbt++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, cbt->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) cbt,
+ pcf_conv_bool_parameter);
+ for (cit = pcf_int_table; cit->name; cit++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, cit->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) cit,
+ pcf_conv_int_parameter);
+ for (cst = pcf_str_table; cst->name; cst++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, cst->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) cst,
+ pcf_conv_str_parameter);
+ for (cft = pcf_str_fn_table; cft->name; cft++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, cft->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) cft,
+ pcf_conv_str_fn_parameter);
+ for (rst = pcf_raw_table; rst->name; rst++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, rst->name,
+ PCF_PARAM_FLAG_BUILTIN | PCF_PARAM_FLAG_RAW,
+ (void *) rst, pcf_conv_raw_parameter);
+ for (nst = pcf_nint_table; nst->name; nst++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, nst->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) nst,
+ pcf_conv_nint_parameter);
+ for (bst = pcf_nbool_table; bst->name; bst++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, bst->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) bst,
+ pcf_conv_nbool_parameter);
+ for (lst = pcf_long_table; lst->name; lst++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, lst->name,
+ PCF_PARAM_FLAG_BUILTIN, (void *) lst,
+ pcf_conv_long_parameter);
+
+ /*
+ * Register legacy parameters (used as a backwards-compatible migration
+ * aid).
+ */
+ for (cst = pcf_legacy_str_table; cst->name; cst++)
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, cst->name,
+ PCF_PARAM_FLAG_LEGACY, (void *) cst,
+ pcf_conv_str_parameter);
+
+ /*
+ * Register parameters whose default value is normally initialized by
+ * ad-hoc code.
+ */
+ pcf_adhoc_procname.defval = mystrdup(procname);
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, pcf_adhoc_procname.name,
+ PCF_PARAM_FLAG_BUILTIN | PCF_PARAM_FLAG_READONLY,
+ (void *) &pcf_adhoc_procname, pcf_conv_str_parameter);
+ pcf_adhoc_servname.defval = mystrdup("");
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, pcf_adhoc_servname.name,
+ PCF_PARAM_FLAG_BUILTIN | PCF_PARAM_FLAG_READONLY,
+ (void *) &pcf_adhoc_servname, pcf_conv_str_parameter);
+ pcf_adhoc_pid.defval = pid;
+ PCF_PARAM_TABLE_ENTER(pcf_param_table, pcf_adhoc_pid.name,
+ PCF_PARAM_FLAG_BUILTIN | PCF_PARAM_FLAG_READONLY,
+ (void *) &pcf_adhoc_pid, pcf_conv_int_parameter);
+}