If user has permision to load modules, then autoload then attempt
autoload of TCP congestion module.
Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]>
---
net/ipv4/tcp_cong.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
--- tcp.orig/net/ipv4/tcp_cong.c 2006-10-31 15:00:26.000000000 -0800
+++ tcp/net/ipv4/tcp_cong.c 2006-10-31 15:00:54.000000000 -0800
@@ -113,7 +113,7 @@
spin_lock(&tcp_cong_list_lock);
ca = tcp_ca_find(name);
#ifdef CONFIG_KMOD
- if (!ca) {
+ if (!ca && capable(CAP_SYS_MODULE)) {
spin_unlock(&tcp_cong_list_lock);
request_module("tcp_%s", name);
@@ -236,9 +236,19 @@
rcu_read_lock();
ca = tcp_ca_find(name);
+ /* no change asking for existing value */
if (ca == icsk->icsk_ca_ops)
goto out;
+#ifdef CONFIG_KMOD
+ /* not found attempt to autoload module */
+ if (!ca && capable(CAP_SYS_MODULE)) {
+ rcu_read_unlock();
+ request_module("tcp_%s", name);
+ rcu_read_lock();
+ ca = tcp_ca_find(name);
+ }
+#endif
if (!ca)
err = -ENOENT;
--
Stephen Hemminger <[EMAIL PROTECTED]>
-
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