netdev - [PATCH 03/11] SUNRPC: sysctl root for debug table introduced

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 14 Dec 2011 14:45:05 +0300
From:	Stanislav Kinsbursky <skinsbursky@...allels.com>
To:	Trond.Myklebust@...app.com
Cc:	linux-nfs@...r.kernel.org, xemul@...allels.com, neilb@...e.de,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	jbottomley@...allels.com, bfields@...ldses.org,
	davem@...emloft.net, devel@...nvz.org
Subject: [PATCH 03/11] SUNRPC: sysctl root for debug table introduced

Sysctl root is required for handliong sysctl dentries per network namespace
context. IOW, it's "lookup" method will be used to find per-net sysctl's set in
further patches.
Also this patch modifies sysctl registering helpers to make them use new sysctl
root.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>

---
 net/sunrpc/sysctl.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index 64c0034..f6e7da2 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -39,6 +39,9 @@ EXPORT_SYMBOL_GPL(nlm_debug);
 
 #ifdef RPC_DEBUG
 
+#include <linux/nsproxy.h>
+#include <net/net_namespace.h>
+
 static struct ctl_table_header *sunrpc_table_header;
 static ctl_table		debug_table[];
 
@@ -47,18 +50,24 @@ struct ctl_path sunrpc_path[] = {
 	{ },
 };
 
+static struct ctl_table_root sunrpc_debug_root = {
+};
+
 struct ctl_table_header *register_sunrpc_sysctl(struct ctl_table *table)
 {
-	return register_sysctl_paths(sunrpc_path, table);
-
+	return __register_sysctl_paths(&sunrpc_debug_root, current->nsproxy,
+				       sunrpc_path, table);
 }
 EXPORT_SYMBOL_GPL(register_sunrpc_sysctl);
 
 void
 rpc_register_sysctl(void)
 {
-	if (!sunrpc_table_header)
+	if (!sunrpc_table_header) {
+		setup_sysctl_set(&sunrpc_debug_root.default_set, NULL, NULL);
+		register_sysctl_root(&sunrpc_debug_root);
 		sunrpc_table_header = register_sunrpc_sysctl(debug_table);
+	}
 }
 
 void
@@ -66,6 +75,7 @@ rpc_unregister_sysctl(void)
 {
 	if (sunrpc_table_header) {
 		unregister_sysctl_table(sunrpc_table_header);
+		unregister_sysctl_root(&sunrpc_debug_root);
 		sunrpc_table_header = NULL;
 	}
 }

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html