tipc: Ensure network address change doesn't impact configuration service

Enhances command validation done by TIPC's configuration service so
that it works properly even if the node's network address is changed in
mid-operation. The default node address of <0.0.0> is now recognized as an
alias for "this node" even after a new network address has been assigned.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/net/tipc/config.c b/net/tipc/config.c
index f76d3b15e4e20ab6baaab45e68cf44d5badecf3f..f5458eddd7bcafed50afbefff656397484a6c9c9 100644 (file)
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -290,7 +290,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
 
        /* Check command authorization */
 
-       if (likely(orig_node == tipc_own_addr)) {
+       if (likely(in_own_node(orig_node))) {
                /* command is permitted */
        } else if (cmd >= 0x8000) {
                rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED