From 8f1778969359a71f398c9ac6d3a9a3e61439b466 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Thu, 26 Apr 2012 17:57:17 -0400 Subject: [PATCH] tipc: Enhance error checking of published names commit 8f1778969359a71f398c9ac6d3a9a3e61439b466 upstream. Consolidates validation of scope and name sequence range values into a single routine where it applies both to local name publications and to name publications issued by other nodes in the network. This change means that the scope value for non-local publications is now validated and the name sequence range for local publications is now validated only once. Additionally, a publication attempt that fails validation now creates an entry in the system log file only if debugging capabilities have been enabled; this prevents the system log from being cluttered up with messages caused by a defective application or network node. Signed-off-by: Allan Stephens Signed-off-by: Paul Gortmaker diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 4222121..4de58de 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -516,9 +516,10 @@ struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper, { struct name_seq *seq = nametbl_find_seq(type); - if (lower > upper) { - warn("Failed to publish illegal {%u,%u,%u}\n", - type, lower, upper); + if ((scope < TIPC_ZONE_SCOPE) || (scope > TIPC_NODE_SCOPE) || + (lower > upper)) { + dbg("Failed to publish illegal {%u,%u,%u} with scope %u\n", + type, lower, upper, scope); return NULL; } diff --git a/net/tipc/port.c b/net/tipc/port.c index 4aede40..e684170 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -992,10 +992,6 @@ int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) if (p_ptr->connected) goto exit; - if (seq->lower > seq->upper) - goto exit; - if ((scope < TIPC_ZONE_SCOPE) || (scope > TIPC_NODE_SCOPE)) - goto exit; key = ref + p_ptr->pub_count + 1; if (key == ref) { res = -EADDRINUSE; -- 1.7.9.1