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| author | Allan Stephens <allan.stephens@windriver.com> | 2012-04-26 17:57:17 -0400 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2012-04-26 18:15:48 -0400 |
| commit | 8f1778969359a71f398c9ac6d3a9a3e61439b466 (patch) | |
| tree | 09a5003c9b116cdde9f12acec508067ee8215333 /net/tipc | |
| parent | f7fb9d20ade55e538efe91477014b6b367ecd802 (diff) | |
| download | lwn-8f1778969359a71f398c9ac6d3a9a3e61439b466.tar.gz lwn-8f1778969359a71f398c9ac6d3a9a3e61439b466.zip | |
tipc: Enhance error checking of published names
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 <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/name_table.c | 7 | ||||
| -rw-r--r-- | net/tipc/port.c | 4 |
2 files changed, 4 insertions, 7 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 42221219275c..4de58dece9b2 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 4aede40e592f..e6841706967c 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; |