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Heavily modified patch from Gennadiy Nerubayev <parakie@gmail.com>.

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Adds a pattern matching for initiator names to SCST access control.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@695 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2009-03-09 20:05:15 +00:00
parent 271b6887d9
commit 06a6ae94e6
3 changed files with 67 additions and 6 deletions
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scst/README
+7 -1
View File
@@ -436,7 +436,10 @@ following files and directories under /proc/scsi_tgt:
for group "GROUP"
- "add NAME" to /proc/scsi_tgt/groups/GROUP/names adds name "NAME" to group
"GROUP"
"GROUP". For NAME you can use simple DOS-type patterns, containing
'*' and '?' symbols. '*' means match all any symbols, '?' means
match only any single symbol. For instance, "blah.xxx" will match
"bl?h.*".
- "del NAME" to /proc/scsi_tgt/groups/GROUP/names deletes name "NAME" from group
"GROUP"
@@ -454,6 +457,9 @@ Examples:
add virtual VDISK device with name "disk1" to "Default" group
with LUN 1.
- "echo "21:*:e0:?b:83:*'" >/proc/scsi_tgt/groups/LAB1/names" will
add a pattern, which matches WWNs of Fibre Channel ports from LAB1.
Consider you need to have an iSCSI target with name
"iqn.2007-05.com.example:storage.disk1.sys1.xyz" (you defined it in
iscsi-scst.conf), which should export virtual device "dev1" with LUN 0
scst/README_in-tree
+7 -1
View File
@@ -376,7 +376,10 @@ following files and directories under /proc/scsi_tgt:
for group "GROUP"
- "add NAME" to /proc/scsi_tgt/groups/GROUP/names adds name "NAME" to group
"GROUP"
"GROUP". For NAME you can use simple DOS-type patterns, containing
'*' and '?' symbols. '*' means match all any symbols, '?' means
match only any single symbol. For instance, "blah.xxx" will match
"bl?h.*".
- "del NAME" to /proc/scsi_tgt/groups/GROUP/names deletes name "NAME" from group
"GROUP"
@@ -394,6 +397,9 @@ Examples:
add virtual VDISK device with name "disk1" to "Default" group
with LUN 1.
- "echo "21:*:e0:?b:83:*'" >/proc/scsi_tgt/groups/LAB1/names" will
add a pattern, which matches WWNs of Fibre Channel ports from LAB1.
Consider you need to have an iSCSI target with name
"iqn.2007-05.com.example:storage.disk1.sys1.xyz" (you defined it in
iscsi-scst.conf), which should export virtual device "dev1" with LUN 0
scst/src/scst_targ.c
+53 -4
View File
@@ -5094,6 +5094,57 @@ out_free:
}
EXPORT_SYMBOL(scst_rx_mgmt_fn);
/*
* Returns true if string "string" matches pattern "wild", false otherwise.
* Pattern is a regular DOS-type pattern, containing '*' and '?' symbols.
* '*' means match all any symbols, '?' means match only any single symbol.
*
* For instance:
* if (wildcmp("bl?h.*", "blah.jpg")) {
* // match
* } else {
* // no match
* }
*
* Written by Jack Handy - jakkhandy@hotmail.com
* Taken by Gennadiy Nerubayev <parakie@gmail.com> from
* http://www.codeproject.com/KB/string/wildcmp.aspx. No license attached
* to it, and is posted on a free site; assumed to be free for use.
*/
static bool wildcmp(const char *wild, const char *string)
{
const char *cp = NULL, *mp = NULL;
while ((*string) && (*wild != '*')) {
if ((*wild != *string) && (*wild != '?'))
return false;
wild++;
string++;
}
while (*string) {
if (*wild == '*') {
if (!*++wild)
return true;
mp = wild;
cp = string+1;
} else if ((*wild == *string) || (*wild == '?')) {
wild++;
string++;
} else {
wild = mp;
string = cp++;
}
}
while (*wild == '*')
wild++;
return !*wild;
}
/* scst_mutex supposed to be held */
static struct scst_acg *scst_find_acg(const char *initiator_name)
{
@@ -5103,10 +5154,8 @@ static struct scst_acg *scst_find_acg(const char *initiator_name)
TRACE_ENTRY();
list_for_each_entry(acg, &scst_acg_list, scst_acg_list_entry) {
list_for_each_entry(n, &acg->acn_list,
acn_list_entry)
{
if (strcmp(n->name, initiator_name) == 0) {
list_for_each_entry(n, &acg->acn_list, acn_list_entry) {
if (wildcmp(n->name, initiator_name)) {
TRACE_DBG("Access control group %s found",
acg->acg_name);
res = acg;