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| author | Allan Stephens <allan.stephens@windriver.com> | 2012-04-18 09:22:56 -0400 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2012-04-19 15:46:47 -0400 |
| commit | b8f683d126c1cb757e794d6d904cbe7cf5954797 (patch) | |
| tree | 70206c678cb16bf0b7e6e32ea8a6a18111c41b03 /net/tipc | |
| parent | 974a5a864bf959b7f3412a31ee8ce001c6628451 (diff) | |
| download | lwn-b8f683d126c1cb757e794d6d904cbe7cf5954797.tar.gz lwn-b8f683d126c1cb757e794d6d904cbe7cf5954797.zip | |
tipc: properly handle off-node send requests with invalid addr
There are two send routines that might conceivably be asked by an
application to send a message off-node when the node is still using
the default network address. These now have an added check that
detects this and rejects the message gracefully.
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/port.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/net/tipc/port.c b/net/tipc/port.c index 616c72fb9234..dc7f916b2e10 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -1270,10 +1270,14 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain, if (likely(destnode == tipc_own_addr)) res = tipc_port_recv_sections(p_ptr, num_sect, msg_sect, total_len); - else + else if (tipc_own_addr) res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect, total_len, destnode); + else + res = tipc_port_reject_sections(p_ptr, msg, msg_sect, + num_sect, total_len, + TIPC_ERR_NO_NODE); if (likely(res != -ELINKCONG)) { if (res > 0) p_ptr->sent++; @@ -1314,9 +1318,12 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest, if (dest->node == tipc_own_addr) res = tipc_port_recv_sections(p_ptr, num_sect, msg_sect, total_len); - else + else if (tipc_own_addr) res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect, total_len, dest->node); + else + res = tipc_port_reject_sections(p_ptr, msg, msg_sect, num_sect, + total_len, TIPC_ERR_NO_NODE); if (likely(res != -ELINKCONG)) { if (res > 0) p_ptr->sent++; |