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authorPhilip Hazel <ph10@hermes.cam.ac.uk>2004-10-18 11:36:23 +0000
committerPhilip Hazel <ph10@hermes.cam.ac.uk>2004-10-18 11:36:23 +0000
commitc5fcb4760803519f96dd47ebe945322e1245495c (patch)
tree5d6f489d12d46e489f0c151fa7c834d520b934a8
parenta494b1e1085547c1f1fb9429081bc2666b21fdc1 (diff)
(1) Checking for invalid "control=" modifiers was not working (for example,
"submission" was allowed in a DATA ACL, though that is too late). Proper checks are now done. (2) Minor fix to the testing "List" script to ignore CVS directories.
-rw-r--r--doc/doc-txt/ChangeLog8
-rw-r--r--src/src/acl.c89
-rw-r--r--src/src/receive.c3
3 files changed, 65 insertions, 35 deletions
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 2283f726f..01bb9a06a 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -1,4 +1,4 @@
-$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.8 2004/10/18 09:26:02 ph10 Exp $
+$Cambridge: exim/doc/doc-txt/ChangeLog,v 1.9 2004/10/18 11:36:23 ph10 Exp $
Change log file for Exim from version 4.21
-------------------------------------------
@@ -32,6 +32,12 @@ Exim version 4.44
unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
systems. I've change it so that if it can't get 1000, it tries for 256.
+ 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
+ was an oversight, and furthermore, ever since the addition of extra
+ controls (e.g. 4.43/32), the checks on when to allow different forms of
+ "control" were broken. There should now be diagnostics for all cases when a
+ control that does not make sense is encountered.
+
Exim version 4.43
-----------------
diff --git a/src/src/acl.c b/src/src/acl.c
index d6a354cf2..1f767b65d 100644
--- a/src/src/acl.c
+++ b/src/src/acl.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/acl.c,v 1.1 2004/10/07 10:39:01 ph10 Exp $ */
+/* $Cambridge: exim/src/src/acl.c,v 1.2 2004/10/18 11:36:23 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
@@ -48,6 +48,12 @@ static uschar *conditions[] = { US"acl", US"authenticated", US"condition",
US"endpass", US"hosts", US"local_parts", US"log_message", US"logwrite",
US"message", US"recipients", US"sender_domains", US"senders", US"set",
US"verify" };
+
+/* ACL control names */
+
+static uschar *controls[] = { US"error", US"caseful_local_part",
+ US"caselower_local_part", US"enforce_sync", US"no_enforce_sync", US"freeze",
+ US"queue_only", US"submission", US"no_multiline"};
/* Flags to indicate for which conditions /modifiers a string expansion is done
at the outer level. In the other cases, expansion already occurs in the
@@ -99,8 +105,8 @@ static uschar cond_modifiers[] = {
FALSE /* verify */
};
-/* Bit map of which conditions are not allowed at certain times. For each
-condition, there's a bitmap of dis-allowed times. */
+/* Bit map vector of which conditions are not allowed at certain times. For
+each condition, there's a bitmap of dis-allowed times. */
static unsigned int cond_forbids[] = {
0, /* acl */
@@ -166,7 +172,6 @@ static unsigned int cond_forbids[] = {
always and check in the verify function itself */
0 /* verify */
-
};
@@ -176,35 +181,48 @@ enum { CONTROL_ERROR, CONTROL_CASEFUL_LOCAL_PART, CONTROL_CASELOWER_LOCAL_PART,
CONTROL_ENFORCE_SYNC, CONTROL_NO_ENFORCE_SYNC, CONTROL_FREEZE,
CONTROL_QUEUE_ONLY, CONTROL_SUBMISSION, CONTROL_NO_MULTILINE };
-/* Structure listing various control arguments, with their characteristics.
-The maximum "where" value controls the ACLs in which the various controls are
-permitted to occur. Specifying ACL_WHERE_RCPT limits it to just the RCPT ACL;
-specifying ACL_WHERE_NOTSMTP limits it to "message" ACLs. */
+/* Bit map vector of which controls are not allowed at certain times. For
+each control, there's a bitmap of dis-allowed times. For some, it is easier to
+specify the negation of a small number of allowed times. */
+
+static unsigned int control_forbids[] = {
+ 0, /* error */
+ ~(1<<ACL_WHERE_RCPT), /* caseful_local_part */
+ ~(1<<ACL_WHERE_RCPT), /* caselower_local_part */
+ (1<<ACL_WHERE_NOTSMTP), /* enforce_sync */
+ (1<<ACL_WHERE_NOTSMTP), /* no_enforce_sync */
+
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* freeze */
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (1<<ACL_WHERE_NOTSMTP)),
+
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* queue_only */
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (1<<ACL_WHERE_NOTSMTP)),
+
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* submission */
+ (1<<ACL_WHERE_PREDATA)),
+
+ (1<<ACL_WHERE_NOTSMTP) /* no_multiline */
+};
+
+/* Structure listing various control arguments, with their characteristics. */
typedef struct control_def {
uschar *name;
int value; /* CONTROL_xxx value */
- int where_max; /* Maximum "where" value */
BOOL has_option; /* Has /option(s) following */
} control_def;
static control_def controls_list[] = {
- { US"caseful_local_part", CONTROL_CASEFUL_LOCAL_PART,
- ACL_WHERE_RCPT, FALSE },
- { US"caselower_local_part", CONTROL_CASELOWER_LOCAL_PART,
- ACL_WHERE_RCPT, FALSE },
- { US"enforce_sync", CONTROL_ENFORCE_SYNC,
- INT_MAX, FALSE },
- { US"freeze", CONTROL_FREEZE,
- ACL_WHERE_NOTSMTP, FALSE },
- { US"no_enforce_sync", CONTROL_NO_ENFORCE_SYNC,
- INT_MAX, FALSE },
- { US"no_multiline_responses", CONTROL_NO_MULTILINE,
- INT_MAX, FALSE },
- { US"queue_only", CONTROL_QUEUE_ONLY,
- ACL_WHERE_NOTSMTP, FALSE },
- { US"submission", CONTROL_SUBMISSION,
- ACL_WHERE_NOTSMTP, TRUE }
+ { US"caseful_local_part", CONTROL_CASEFUL_LOCAL_PART, FALSE},
+ { US"caselower_local_part", CONTROL_CASELOWER_LOCAL_PART, FALSE},
+ { US"enforce_sync", CONTROL_ENFORCE_SYNC, FALSE},
+ { US"freeze", CONTROL_FREEZE, FALSE},
+ { US"no_enforce_sync", CONTROL_NO_ENFORCE_SYNC, FALSE},
+ { US"no_multiline_responses", CONTROL_NO_MULTILINE, FALSE},
+ { US"queue_only", CONTROL_QUEUE_ONLY, FALSE},
+ { US"submission", CONTROL_SUBMISSION, TRUE}
};
/* Enable recursion between acl_check_internal() and acl_check_condition() */
@@ -1155,13 +1173,6 @@ if (d >= controls_list + sizeof(controls_list)/sizeof(control_def) ||
return CONTROL_ERROR;
}
-if (where > d->where_max)
- {
- *log_msgptr = string_sprintf("cannot use \"control=%s\" in %s ACL",
- arg, acl_wherenames[where]);
- return CONTROL_ERROR;
- }
-
*pptr = arg + len;
return d->value;
}
@@ -1210,6 +1221,7 @@ int rc = OK;
for (; cb != NULL; cb = cb->next)
{
uschar *arg;
+ int control_type;
/* The message and log_message items set up messages to be used in
case of rejection. They are expanded later. */
@@ -1325,7 +1337,18 @@ for (; cb != NULL; cb = cb->next)
break;
case ACLC_CONTROL:
- switch (decode_control(arg, &p, where, log_msgptr))
+ control_type = decode_control(arg, &p, where, log_msgptr);
+
+ /* Check this control makes sense at this time */
+
+ if ((control_forbids[control_type] & (1 << where)) != 0)
+ {
+ *log_msgptr = string_sprintf("cannot use \"control=%s\" in %s ACL",
+ controls[control_type], acl_wherenames[where]);
+ return ERROR;
+ }
+
+ switch(control_type)
{
case CONTROL_ERROR:
return ERROR;
diff --git a/src/src/receive.c b/src/src/receive.c
index 8f6db6cd1..1057d1122 100644
--- a/src/src/receive.c
+++ b/src/src/receive.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/receive.c,v 1.1 2004/10/07 10:39:01 ph10 Exp $ */
+/* $Cambridge: exim/src/src/receive.c,v 1.2 2004/10/18 11:36:23 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
@@ -2723,6 +2723,7 @@ else
Uunlink(spool_name);
log_write(0, LOG_MAIN|LOG_REJECT, "F=<%s> rejected by non-SMTP ACL: %s",
sender_address, log_msg);
+ if (user_msg == NULL) user_msg = US"local configuration problem";
if (smtp_batched_input)
{
moan_smtp_batch(NULL, "%d %s", 550, user_msg);