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authorJoshua Oreman <oremanj@rwcr.net>2009-10-22 00:55:08 -0400
committerMarty Connor <mdc@etherboot.org>2010-01-20 17:52:02 -0500
commitef9d1a32c6dc83d1086141c18d2be19a05ab8e49 (patch)
tree92bc6ca29a4c89c023a644ae3516a5cb96fec5ad /src
parent06a8398422efb613b7ee4f9d8f1abcc813bb3f3b (diff)
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[settings] Add automagic "netX" settings block for last opened netdev
A script loaded via autoboot may want to get some of the settings (MAC address, IP address, et cetera) for the interface via which it was loaded, in order to pass them to the operating system. Previously such a script had no way to determine what to put in the X of ${netX/foo}. Solve this problem by transparently forwarding accesses to the real settings associated with the most recently opened network device, so scripts in this situation can say literally ${netX/foo} and get the foo setting they want. Signed-off-by: Marty Connor <mdc@etherboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/core/settings.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/core/settings.c b/src/core/settings.c
index 87d84a0..fe67d6b 100644
--- a/src/core/settings.c
+++ b/src/core/settings.c
@@ -328,11 +328,20 @@ parse_settings_name ( const char *name,
/* Parse each name component in turn */
while ( remainder ) {
+ struct net_device *netdev;
+
subname = remainder;
remainder = strchr ( subname, '.' );
if ( remainder )
*(remainder++) = '\0';
- settings = get_child ( settings, subname );
+
+ /* Special case "netX" root settings block */
+ if ( ( subname == name_copy ) && ! strcmp ( subname, "netX" ) &&
+ ( ( netdev = last_opened_netdev() ) != NULL ) )
+ settings = get_child ( settings, netdev->name );
+ else
+ settings = get_child ( settings, subname );
+
if ( ! settings )
break;
}