* Exim - an Internet mail transport agent *
*************************************************/
+/* Copyright (c) The Exim Maintainers 2020 - 2023 */
/* Copyright (c) University of Cambridge 1995 - 2018 */
-/* Copyright (c) The Exim Maintainers 2020 - 2021 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Prototypes for functions that appear in various modules. Gathered together
extern void tls_clean_env(void);
extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
void *, tls_support *, uschar **);
+extern BOOL tls_client_adjunct_start(host_item *, client_conn_ctx *,
+ const uschar *, uschar **);
extern void tls_client_creds_reload(BOOL);
extern void tls_close(void *, int);
/* Everything else... */
extern acl_block *acl_read(uschar *(*)(void), uschar **);
-extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
+extern int acl_check(int, const uschar *, uschar *, uschar **, uschar **);
extern uschar *acl_current_verb(void);
extern int acl_eval(int, uschar *, uschar **, uschar **);
+extern uschar *acl_standalone_setvar(const uschar *);
extern tree_node *acl_var_create(uschar *);
extern void acl_var_write(uschar *, uschar *, void *);
#ifdef EXPERIMENTAL_ARC
+# ifdef SUPPORT_DMARC
+extern gstring *arc_dmarc_hist_append(gstring *);
+# endif
extern void *arc_ams_setup_sign_bodyhash(void);
extern const uschar *arc_header_feed(gstring *, BOOL);
extern gstring *arc_sign(const uschar *, gstring *, uschar **);
extern uschar *b64encode(const uschar *, int);
extern uschar *b64encode_taint(const uschar *, int, const void *);
-extern int b64decode(const uschar *, uschar **);
+extern int b64decode(const uschar *, uschar **, const void *);
extern int bdat_getc(unsigned);
extern uschar *bdat_getbuf(unsigned *);
extern BOOL bdat_hasc(void);
extern void release_cutthrough_connection(const uschar *);
extern void daemon_go(void);
+#ifndef COMPILE_UTILITY
+extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **);
+extern ssize_t daemon_notifier_sockname(struct sockaddr_un *);
+#endif
#ifdef EXPERIMENTAL_DCC
extern int dcc_process(uschar **);
#endif
-extern void debug_logging_activate(uschar *, uschar *);
+extern void debug_logging_activate(const uschar *, const uschar *);
+extern void debug_logging_from_spool(const uschar *);
extern void debug_logging_stop(BOOL);
extern void debug_print_argv(const uschar **);
extern void debug_print_ids(uschar *);
extern void debug_trigger_fire(void);
extern void decode_bits(unsigned int *, size_t, int *,
- uschar *, bit_table *, int, uschar *, int);
+ const uschar *, bit_table *, int, uschar *, int);
extern void delete_pid_file(void);
extern void deliver_local(address_item *, BOOL);
-extern address_item *deliver_make_addr(uschar *, BOOL);
+extern address_item *deliver_make_addr(const uschar *, BOOL);
extern void delivery_log(int, address_item *, int, uschar *);
-extern int deliver_message(uschar *, BOOL, BOOL);
+extern int deliver_message(const uschar *, BOOL, BOOL);
extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
extern void deliver_set_expansions(address_item *);
extern int deliver_split_address(address_item *);
extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
extern uschar *expand_file_big_buffer(const uschar *);
extern uschar *expand_string(uschar *); /* public, cannot make const */
+extern const uschar *expand_string_2(const uschar *, BOOL *);
extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
extern uschar *expand_getkeyed(const uschar *, const uschar *);
extern int filter_interpret(const uschar *, int, address_item **, uschar **);
extern BOOL filter_personal(string_item *, BOOL);
-extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
+extern BOOL filter_runtest(int, const uschar *, BOOL, BOOL);
extern BOOL filter_system_interpret(address_item **, uschar **);
extern uschar * fn_hdrs_added(void);
extern int ipv6_nmtoa(int *, uschar *);
-extern uschar *local_part_quote(uschar *);
-extern int log_open_as_exim(uschar * const);
+extern const uschar *local_part_quote(const uschar *);
+extern int log_open_as_exim(const uschar * const);
extern void log_close_all(void);
extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
extern uschar *macros_expand(int, int *, BOOL *);
extern void mainlog_close(void);
#ifdef WITH_CONTENT_SCAN
-extern int malware(const uschar *, int);
-extern int malware_in_file(uschar *);
+extern int malware(const uschar *, BOOL, int);
+extern int malware_in_file(const uschar *);
extern void malware_init(void);
extern gstring * malware_show_supported(gstring *);
#endif
const uschar *, const uschar **);
extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
unsigned int *, int, BOOL, const uschar **);
-extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
+extern int match_check_string(const uschar *, const uschar *, int, mcs_flags,
const uschar **);
extern void message_start(void);
struct mime_boundary_context *, uschar **, uschar **);
extern int mime_decode(const uschar **);
extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
-extern int mime_regex(const uschar **);
+extern int mime_regex(const uschar **, BOOL);
extern void mime_set_anomaly(int);
#endif
-extern uschar *moan_check_errorcopy(uschar *);
+extern uschar *moan_check_errorcopy(const uschar *);
extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
BOOL, uschar *);
extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
-extern BOOL moan_send_message(uschar *, int, error_block *eblock,
+extern BOOL moan_send_message(const uschar *, int, error_block *eblock,
header_line *, FILE *, uschar *);
extern void moan_tell_someone(uschar *, address_item *,
const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
extern const uschar *parse_date_time(const uschar *str, time_t *t);
extern void priv_drop_temp(const uid_t, const gid_t);
extern void priv_restore(void);
-extern int vaguely_random_number(int);
-#ifndef DISABLE_TLS
-extern int vaguely_random_number_fallback(int);
+#ifdef SUPPORT_PROXY
+extern BOOL proxy_protocol_host(void);
+extern void proxy_protocol_setup(void);
#endif
-extern BOOL queue_action(uschar *, int, uschar **, int, int);
+extern BOOL queue_action(const uschar *, int, const uschar **, int, int);
extern void queue_check_only(void);
extern unsigned queue_count(void);
extern unsigned queue_count_cached(void);
-extern void queue_list(int, uschar **, int);
+extern void queue_list(int, const uschar **, int);
#ifndef DISABLE_QUEUE_RAMP
extern void queue_notify_daemon(const uschar * hostname);
#endif
-extern void queue_run(uschar *, uschar *, BOOL);
+extern void queue_run(qrunner *, const uschar *, const uschar *, BOOL);
extern int random_number(int);
extern const uschar *rc_to_string(int);
extern uschar *readconf_find_option(void *);
extern void readconf_main(BOOL);
extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
-extern BOOL readconf_print(const uschar *, uschar *, BOOL);
+extern BOOL readconf_print(const uschar *, const uschar *, BOOL);
extern uschar *readconf_printtime(int);
-extern uschar *readconf_readname(uschar *, int, uschar *);
+extern const uschar *readconf_readname(uschar *, int, const uschar *);
extern int readconf_readtime(const uschar *, int, BOOL);
extern void readconf_rest(void);
extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
extern void read_message_body(BOOL);
extern void receive_bomb_out(uschar *, uschar *) NORETURN;
extern BOOL receive_check_fs(int);
-extern BOOL receive_check_set_sender(uschar *);
+extern BOOL receive_check_set_sender(const uschar *);
extern BOOL receive_msg(BOOL);
extern int_eximarith_t receive_statvfs(BOOL, int *);
extern void receive_swallow_smtp(void);
#ifdef WITH_CONTENT_SCAN
-extern int regex(const uschar **);
+extern int regex(const uschar **, BOOL);
+extern void regex_vars_clear(void);
#endif
+extern void regex_at_daemon(const uschar *);
extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
-extern const pcre2_code *regex_must_compile(const uschar *, BOOL, BOOL);
+extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **,
+ pcre2_compile_context *);
+extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL);
extern void retry_add_item(address_item *, uschar *, int);
extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
uschar **, uschar **);
int *, const uschar **);
extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
extern void search_tidyup(void);
+extern uschar *sender_helo_verified_boolstr(void);
extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
extern void sha1_end(hctx *, const uschar *, int, uschar *);
extern void sha1_mid(hctx *, const uschar *);
const uschar *, const uschar *, const uschar *,
address_item **, uschar **);
extern void sigalrm_handler(int);
+extern void single_queue_run(qrunner *, const uschar *, const uschar *);
+extern int smtp_boundsock(smtp_connect_args *);
extern void smtp_closedown(uschar *);
extern void smtp_command_timeout_exit(void) NORETURN;
extern void smtp_command_sigterm_exit(void) NORETURN;
extern void smtp_deliver_init(void);
extern uschar *smtp_cmd_hist(void);
extern int smtp_connect(smtp_connect_args *, const blob *);
-extern int smtp_sock_connect(host_item *, int, int, uschar *,
- transport_instance * tb, int, const blob *);
extern int smtp_feof(void);
extern int smtp_ferror(void);
extern uschar *smtp_get_connection_info(void);
extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
extern void smtp_log_no_mail(void);
extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
-extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int) NORETURN;
+extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
extern BOOL smtp_read_response(void *, uschar *, int, int, int);
extern void *smtp_reset(void *);
extern void smtp_respond(uschar *, int, BOOL, uschar *);
extern void smtp_port_for_connect(host_item *, int);
extern void smtp_send_prohibition_message(int, uschar *);
extern int smtp_setup_msg(void);
+extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
extern BOOL smtp_start_session(void);
extern int smtp_ungetc(int);
extern BOOL smtp_verify_helo(void);
extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
#endif
extern void spool_clear_header_globals(void);
-extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
-extern int spool_open_datafile(uschar *);
+extern BOOL spool_move_message(const uschar *, const uschar *, const uschar *, const uschar *);
+extern int spool_open_datafile(const uschar *);
extern int spool_open_temp(uschar *);
extern int spool_read_header(uschar *, BOOL, BOOL);
extern uschar *spool_sender_from_msgid(const uschar *);
-extern int spool_write_header(uschar *, int, uschar **);
+extern int spool_write_header(const uschar *, int, uschar **);
extern int stdin_getc(unsigned);
extern int stdin_feof(void);
extern int stdin_ferror(void);
extern BOOL stdin_hasc(void);
extern int stdin_ungetc(int);
+extern void stackdump(void);
extern void store_exit(void);
extern void store_init(void);
extern void store_writeprotect(int);
extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
-extern uschar *string_base62(unsigned long int);
+extern uschar *string_base62_32(unsigned long int);
+extern uschar *string_base62_64(unsigned long int);
extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
extern int string_compare_by_pointer(const void *, const void *);
extern uschar *string_format_size(int, uschar *);
extern int string_interpret_escape(const uschar **);
extern int string_is_ip_address(const uschar *, int *);
+extern int string_is_ip_addressX(const uschar *, int *, const uschar **);
#ifdef SUPPORT_I18N
extern BOOL string_is_utf8(const uschar *);
#endif
, unsigned, unsigned, unsigned
#endif
);
-extern uschar *transport_rcpt_address(address_item *, BOOL);
-extern BOOL transport_set_up_command(const uschar ***, uschar *,
- BOOL, int, address_item *, uschar *, uschar **);
+extern const uschar *transport_rcpt_address(address_item *, BOOL);
+extern BOOL transport_set_up_command(const uschar ***, const uschar *,
+ unsigned, int, address_item *, const uschar *, uschar **);
extern void transport_update_waiting(host_item *, uschar *);
extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
extern void transport_write_reset(int);
extern BOOL transport_write_string(int, const char *, ...);
extern BOOL transport_headers_send(transport_ctx *,
- BOOL (*)(transport_ctx *, uschar *, int));
+ BOOL (*)(transport_ctx *, const uschar *, int));
extern gstring * transport_show_supported(gstring *);
extern BOOL transport_write_message(transport_ctx *, int);
extern void tree_add_duplicate(const uschar *, address_item *);
extern gstring *utf8_version_report(gstring *);
#endif
+extern int vaguely_random_number(int);
+#ifndef DISABLE_TLS
+extern int vaguely_random_number_fallback(int);
+#endif
extern int verify_address(address_item *, FILE *, int, int, int, int,
uschar *, uschar *, BOOL *);
extern int verify_check_dnsbl(int, const uschar **, uschar **);
extern int verify_check_given_host(const uschar **, const host_item *);
extern int verify_check_this_host(const uschar **, unsigned int *,
const uschar*, const uschar *, const uschar **);
-extern address_item *verify_checked_sender(uschar *);
+extern address_item *verify_checked_sender(const uschar *);
extern void verify_get_ident(int);
extern void verify_quota(uschar *);
extern int verify_quota_call(const uschar *, int, int, uschar **);
extern BOOL verify_sender_preliminary(int *, uschar **);
extern void version_init(void);
-extern BOOL write_chunk(transport_ctx *, uschar *, int);
+extern BOOL write_chunk(transport_ctx *, const uschar *, int);
extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
+extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned);
+
+#ifdef EXPERIMENTAL_XCLIENT
+extern uschar * xclient_smtp_command(uschar *, int *, BOOL *);
+extern gstring * xclient_smtp_advertise_str(gstring *);
+#endif
/******************************************************************************/
string_copyn_taint_trc(const uschar * s, unsigned len,
const void * proto_mem, const char * func, int line)
{
-uschar * ss = store_get_3(len + 1, proto_mem, func, line);
+uschar * ss;
+unsigned slen = Ustrlen(s);
+if (len > slen) len = slen;
+ss = store_get_3(len + 1, proto_mem, func, line);
memcpy(ss, s, len);
ss[len] = '\0';
return ss;
return g->s;
}
+static inline int
+len_string_from_gstring(gstring * g, uschar ** sp)
+{
+if (g)
+ {
+ *sp = g->s;
+ g->s[g->ptr] = '\0';
+ return g->ptr;
+ }
+else
+ {
+ *sp = NULL;
+ return 0;
+ }
+}
+
+static inline uschar *
+string_copy_from_gstring(gstring * g)
+{
+return g ? string_copyn(g->s, g->ptr) : NULL;
+}
+
static inline unsigned
gstring_length(const gstring * g)
{
return g ? (unsigned)g->ptr : 0;
}
+static inline uschar
+gstring_last_char(gstring * g)
+{
+return g->s[g->ptr-1];
+}
+
+static inline void
+gstring_trim(gstring * g, unsigned amount)
+{
+g->ptr -= amount;
+}
+
+static inline void
+gstring_trim_trailing(gstring * g, uschar c)
+{
+if (gstring_last_char(g) == c) gstring_trim(g, 1);
+}
+
+static inline void
+gstring_reset(gstring * g)
+{
+g->ptr = 0;
+}
+
#define gstring_release_unused(g) \
gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
g->s = s;
}
+/* Append one gstring to another */
+static inline gstring *
+gstring_append(gstring * dest, gstring * item)
+{
+return string_catn(dest, item->s, item->ptr);
+}
+
# ifndef COMPILE_UTILITY
/******************************************************************************/
store_free_3(dnsa, CCS func, line);
}
+
+/* Check for an RR being large enough. Return TRUE iff bad. */
+static inline BOOL
+rr_bad_size(const dns_record * rr, size_t minbytes)
+{
+return rr->size < minbytes;
+}
+
+/* Check for an RR having further data beyond a given pointer.
+Return TRUE iff bad. */
+static inline BOOL
+rr_bad_increment(const dns_record * rr, const uschar * ptr, size_t minbytes)
+{
+return rr_bad_size(rr, ptr - rr->data + minbytes);
+}
+
/******************************************************************************/
/* Routines with knowledge of spool layout */
# endif
static inline uschar *
-spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
+spool_q_sname(const uschar * purpose, const uschar * q, const uschar * subdir)
{
return string_sprintf("%s%s%s%s%s",
q, *q ? "/" : "",
}
static inline uschar *
-spool_sname(const uschar * purpose, uschar * subdir)
+spool_sname(const uschar * purpose, const uschar * subdir)
{
return spool_q_sname(purpose, queue_name, subdir);
}
int search_sequence)
{
subdir_str[0] = split_spool_directory == (search_sequence == 0)
- ? name[5] : '\0';
+ ? name[MESSAGE_ID_TIME_LEN-1] : '\0';
subdir_str[1] = '\0';
}
+/******************************************************************************/
+/* Message-ID format transition knowlege */
+
+static inline BOOL
+is_new_message_id(const uschar * id)
+{
+return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN] == '-';
+}
+
+static inline BOOL
+is_old_message_id(const uschar * id)
+{
+return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN_OLD] == '-';
+}
+
+static inline unsigned
+spool_data_start_offset(const uschar * id)
+{
+if (is_old_message_id(id)) return SPOOL_DATA_START_OFFSET_OLD;
+return SPOOL_DATA_START_OFFSET;
+}
+
/******************************************************************************/
/* Time calculations */
DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
if ((pid = fork()) == 0)
{
+ f.daemon_listen = FALSE;
process_purpose = purpose;
DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
}
return poll(&p, 1, tmo_millisec);
}
+/******************************************************************************/
+/* Client-side smtp log string, for debug */
+
+static inline void
+smtp_debug_cmd(const uschar * buf, int mode)
+{
+HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
+ mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
+
+# ifndef DISABLE_CLIENT_CMD_LOG
+ {
+ int len = Ustrcspn(buf, " \n");
+ int old_pool = store_pool;
+ store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
+ client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
+ if (mode == SCMD_BUFFER)
+ {
+ client_cmd_log = string_catn(client_cmd_log, US"|", 1);
+ (void) string_from_gstring(client_cmd_log);
+ }
+ store_pool = old_pool;
+ }
+# endif
+}
+
+
+static inline void
+smtp_debug_cmd_report(void)
+{
+# ifndef DISABLE_CLIENT_CMD_LOG
+debug_printf("cmdlog: '%s'\n", client_cmd_log ? client_cmd_log->s : US"(unset)");
+# endif
+}
+
+
+
+static inline int
+expand_max_rcpt(const uschar * str_max_rcpt)
+{
+const uschar * s = expand_cstring(str_max_rcpt);
+int res;
+return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res;
+}
+
+/******************************************************************************/
+/* Queue-runner operations */
+
+static inline BOOL
+is_onetime_qrun(void)
+{
+return qrunners && !qrunners->next && qrunners->interval == 0;
+}
+
+static inline BOOL
+is_multiple_qrun(void)
+{
+return qrunners && (qrunners->interval > 0 || qrunners->next);
+}
+
+
# endif /* !COMPILE_UTILITY */
/******************************************************************************/
#endif /* _FUNCTIONS_H_ */
-/* vi: aw
+/* vi: aw ai sw=2
*/
/* End of functions.h */
git://git.exim.org / exim.git / blobdiff